Jig board processes medium application in frame carling aperture

The fixed position that gets pattern plate (1) at the same time two annul: According to located at 6 o'clock principle, integrate the chamfer of frame carling structure, n of carling of general choice frame (or the one side in both wings face) reach two aperture to regard as it is surely fiducial, get pattern plate accordingly to use the installation on flat to set make circle of two fixed position sell a method to locate, and two circles are sold repeat restricted same each by degree, reason sells circle of among them a fixed position instead lozenge. When installation, the direction side the length that lozenge sells and the two sold way that connect a line are perpendicular, if pursue,1 is shown. Occasionally fixed position aperture and need cover the hole that gets treatment to distributing to go up in the alar face of carling and n respectively, two are used to solder to be comprised into orthogonal noumenon each other when the design gets pattern plate (common says " T jig board " ) , in be being used actually, to had avoided fixed position, the range that sells the blame fixed position that gets pattern plate the seat maintains be not a contact with carling, namely put apart the clearance of 2 ～ 3mm, if pursue,2 are shown. (2) two sides sells: Occasionally fixed position aperture and need cover the hole that gets treatment to distributing to go up in alar face and n respectively, jig board uses two to solder to be comprised into orthogonal noumenon each other, but the intensity that locates Kong Tai may affect carling more, use mutual and perpendicular two sides to add the method that has sold fixed position at that time. (3) sell more at the same time: To raise the yield of numerical control equipment can, can use planar strong preexistence to control carling to develop a carling to serve as jig board (common says " example bridge " ) , use 30mm of the φ on line of center of example bridge semmetry (or φ 35mm) fixed position of strike out opening, fold get semifinished product a surname. According to practical experience, fold the semifinished product a surname that get not to exceed 5 every time, if pursue,3 are shown. Same, use 3 to rush to give a carling to serve as jig board in groove Liang Shangchong, and the semifinished product bridge that needs treatment must develop 30mm of the φ on symmetrical center line first (or φ 35mm) aperture of fixed position craft. Cover when getting, example Liang Zun (right) Liang Yumao semifinished product is right (left) bridge relies on to tighten (common says " back bridge " ) , put on fixed position to sell, clamp hind covers bore again. Can cover only every time get a carling, example bridge is used only. Of course, must distinguish to having when process of punching of face of Liang San of work out example the aperture of or so bridge does a few craft to change, benefit is gotten at covering (or so bridge duplicates each other the aperture on n) . At the same time two sell the jig that sells with two sides board use at carling commonly local filling bore, jig board is lesser (do not exceed 1m commonly) . Sell medium treatment kind more at the same time, be confined to the Kong Jia of whole carling to be versed in, locate sold span assures to be 1 ～ 2m, the amount does not exceed 5 commonly, use many circles fixed position to sell, had attributed fixed position, raised carling the tigidity in treatment and stability. Nextpage2.

The opening that there is of all kinds diameter respectively on the chooses frame or so carling of fixed position aperture is amounted to 400 many, bore diameter differs to φ 45mm from φ 7mm. The small-sized jig to local filling bore board, from the point of fixed position precision, according to the analysis, use alveolus fixed position precision is opposite taller, relatively economy. When using flat example bridge to serve as jig board, the strike out that uses 30mm of the φ on line of center of semmetry of semifinished product bridge or φ 35mm aperture locates, still can make sure carling aperture treatment is standard shape with punch fiducial and unified. Fold when getting semifinished product a surname, put go up in bore car, can assure to machine quality, if pursue,4 are shown. 3.

The option that gets data of pattern plate noumenon and the data of noumenon of clamp getting pattern plate that get pattern plate choose A3 to be able to ask in order to satisfy a design, need not make heat treatment. The ply of noumenon material 8 ～ 16mm, one-time use pattern plate need not be designed auger set, with managing cost, can increase on noumenon to bigger pattern plate decrease heavy aperture, install the crane equipment such as rings bolt. As a result of the slot with frame special carling structure, jig board uses segment of a circle to place clamp more in use process (see a picture 3, graph 4) , clamp uses T whorl, the largest clamping force can achieve 60kN, and assemble and unassemble convenient. The makes my factory use at first treatment technology that gets pattern plate is: Dig of head of ox of pattern plate noumenon (mill) 6 → underline → to bore hole → installation fixed position is sold with get a benchwork waiting for → to underline an examination. As a result of although precision is tall,bore hole (see next tables) , but production cycle is long, my factory introduced numerical control getting later, to getting pattern plate noumenon (thick 12 ～ 16mm) aperture undertakes machining, assemble artificially next fixed position is sold and get set. With locating among them Kong Weiji allows to undertake process designing when bore, shortened production cycle. Right one-time use pattern plate (makings is thick 8 ～ 10mm) , use treatment of machine of punching of small-sized numerical control, efficiency is taller, production cycle is shorter. After treatment ends, use 3 coordinate detector to detect, make sure its are using the effectiveness in the process. Because the application that gets pattern plate carries loaded vehicle batholith to be in design process, in order to make sure the stiffness of chassis is given priority to, when so the design has the part that assembles a relation design catenary of dimension of make repairs and supply replacements to satisfy lesser painstakingly assemble a requirement. This is right frame carling aperture treatment precision raised taller requirement, especially when the cast of the carling that punch shapes and machine treatment is assembled, the demand is higher. 1.

Bracket of reed of the backboard before bracket of around board reed assures with aperture precision is structure of machine treatment cast, its aperture rely on special fixture to assure, and when bracket of around board reed is being assembled with carling, because do not have catenary of dimension of make repairs and supply replacements, can bring about assemble parameter of difficult and relevant quality to amount to mark hard, if coaxial of board reed bracket spends an error,increase etc. To solve this problem, develop the fixed position hole that makes a 11mm of a φ on carling n beforehand, recycle " T jig board " get board reed bracket to assemble used complete opening, different is: The range that sells the blame fixed position that gets pattern plate the seat maintains contact with carling, namely 0 clearance, to had avoided fixed position, the bottom outlet that sells fixed position machines elliptical aperture, its grow edge center line the range that fixed position of perpendicular Yu Fei sells a seat. 2.

Rear trunnion shaft gets pattern plate precision to assure with the whole of aperture to assure truckload the stiffness that chassis rear is in, rear and frame photograph connective control bracket to connect an organic whole through rear arm, its and frame connective aperture be to pass clamping apparatus to assure, precision is taller (± 0.

5mm) , and after assembling, the installing hole of obligate of the rear on frame is formed, below the products plan circumstance that does not have catenary of dimension of make repairs and supply replacements in rear and frame photograph connection, want to make sure rear and frame assemble the interchangeability with be had better, solid belong to not easy. In producing a course actually, the rear center of face of ala of carling of preexistence frame left and right sides makes the hole of fixed position craft of 11mm of a φ , control the pattern plate shift in frame length direction, recycle whole is right in the symmetrical center coincide that jig board will come to to make sure pattern plate and frame are both, the quality that can make sure rear uses opening so asks (aperture precision ± 0.

2 ～ ± 0.

5mm) , at the same time the assembly of rear has very good interchangeability, if pursue,4 are shown. For more reasonable use jig board, my factory has been sold to among them fixed position, auger set reached arched clip to undertake standardizing, at the same time formulate " jig board runs way " , to of all kinds jig board execute calm check, fixed maintain and time change fixed position is sold, auger set etc, make sure production gets pattern plate mediumly to be in significant monitoring position. CNC Milling CNC Machining