Multi-station self-centering machining tool for irregular products

Abstract

The invention provides a multi-station self-centering machining tool for irregular products, which comprises a base, the base is provided with a supporting seat, a pressing device, a jacking seat and a supporting base B, the supporting seat is provided with a positioning device, the jacking seat is provided with a jacking device, the supporting base B is provided with a middle supporting device, and the middle supporting device is provided with a clamping device. The positioning device comprises positioning inclined iron arranged in the side vertical face of the supporting seat, two guide positioning columns are arranged on the positioning inclined iron, the positioning inclined iron is fixedly connected with the side vertical face of the supporting seat through a bolt A, a spring A is arranged in a middle hole of the positioning inclined iron, and the spring A is connected with a limiting screw on the side vertical face of the supporting seat. The automatic centering and clamping device is low in manufacturing cost, capable of automatically centering and determining the center and reasonably distributing the clamping position, rapid and efficient in clamping, reliable in pressing mode and small in workpiece deformation, vibration in the machining process is effectively controlled, the labor intensity of workers can be relieved to a large extent, and the rejection rate of products is reduced.

Description

Technical Field

[0001] The invention belongs to the field of machinery, and in particular relates to a multi-station self-centering processing tool for irregular products.

[0002] There are many types of brake pad products in the prior art. The products are cast blanks, and symmetrical centering is required for specific positions. The products have very few clamping points, and the position requirements of the clamping points are too high, making it difficult to clamp quickly. Because the products are at risk of deformation, they need to be rough-machined before fine-machining to prevent excessive removal and deformation. The traditional processing method is to use a simple positioning tool to locate one side, then calculate the distance to the center, compensate it to the coordinate system of the machining center, and then process it. Because the casting size is inconsistent, it needs to be constantly corrected. Secondly, the position of the pressure plate needs to be adjusted during the clamping process to prevent it from being hit by the machining tool. The adjustment time is long, and the rough machining requires one-time removal, the processing volume is large, the clamping force requirements are high, and there is a risk of dislocation, which cannot achieve the purpose of mass production and batch production. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a multi-station self-centering processing tool for irregular products.

[0004] The technical solution of the present invention is implemented as follows: a multi-station self-centering processing tool for irregular products includes a base, the base is provided with a support seat, a clamping device, a tightening seat, and a support base B, the support seat is provided with a positioning device, the tightening seat is provided with a tightening device, and the support base B is provided with an intermediate supporting device, the positioning device includes a positioning oblique iron arranged in the side elevation of the support seat, the positioning oblique iron is provided with two guide positioning columns, the positioning oblique iron is fixedly connected to the side elevation of the support seat by a bolt A, a spring A is provided in the middle hole of the positioning oblique iron, and the spring A is connected to the limit screw on the side elevation of the support seat; Preferably, the tightening device includes two tightening guide columns, the tightening guide columns are arranged on the inner side of the side vertical surface of the tightening seat, a positioning block is arranged in front of the tightening guide column, a bolt B is arranged on the side vertical surface of the tightening seat, the bolt B passes through the middle hole of the positioning block and is connected with the gasket, a pressure plate A is arranged above the positioning block, the rear end of the pressure plate A is connected to the side vertical surface of the tightening seat through a supporting bolt, the front end of the pressure plate A is open, a long bolt is arranged in the opening, and the long bolt is fixed downward on the tightening seat; the tightening seat is provided with a supporting Base A, two support columns B of equal height are arranged on the support base A, a tension column A is arranged on the tightening seat on the front side of the support base A, a tension column B is arranged on the tension column A, a bolt C is arranged on the tension column B, pressing plates B are symmetrically arranged on both sides of the positioning block at the upper end of the tightening seat, the pressing plates B are L-shaped, an opening plate is arranged on the outer side of the vertical plate of the pressing plate B, the bolt C is movably connected with the opening plate, the horizontal plates of the two pressing plates B are connected to the tightening seat through locking bolts, and the pressing plates B can be flipped forward and backward around the locking bolts; Preferably, the intermediate support device comprises a support base B, on which a short support column C and a long support column C are arranged, and above the short support column C and the long support column C are both provided with support column movable caps; Preferably, a clamping device is provided on the bottom plate beside the support seat, and the clamping device includes a support column A, a movable support column A, and two clamping columns arranged on the bottom plate. The movable support column A is provided with a movable cap, the clamping column is provided with a clamping block, the clamping block is provided with a spring B, and a clamping rod is provided below the front end of the clamping block.

[0005] The beneficial effects of the present invention are: the present invention has low manufacturing cost, can automatically determine the center, especially for products with limited clamping positions, reasonably distributes the clamping positions, clamps quickly and efficiently, has a reliable clamping method, has small deformation of the workpiece, and effectively controls vibration during the processing process, which can greatly reduce the labor intensity of workers, reduce the scrap rate of products, and further reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 A top view of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of CC cross section; Figure 3 For the present invention Figure 1 DD cross-sectional diagram; Figure 4 For the present invention Figure 1 EE cross-sectional diagram of ; Figure 5 For the present invention Figure 1 FF cross-sectional diagram; Figure 6 It is an overall schematic diagram of the axonometric direction of the present invention; Figure 7 Another overall schematic diagram of the present invention in the axonometric direction; Figure 8 This is a schematic diagram of the product processed by the present invention.

[0007] Parts Description: 1. Base plate, 2. Support seat, 3. Positioning bevel iron, 4. Limit screw, 5. Spring A, 6. Guide positioning column, 7. Product, 8. Support column A, 9. Tightening seat, 10. Positioning block, 11. Tightening guide column, 12. Support base A, 13. Support column B, 14. Support base B, 15. Bolt A, 16. Bolt B, 17. Gasket, 18. Movable support column A, 19. Movable cap of support column, 20. Long support column C, 21. Movable cap of support column, 22. Short support column C, 23. Clamping rod, 24. Clamping column, 25. Clamping block, 26. Spring B, 27. Pressure plate A, 28. Support bolt, 29. Long bolt, 30. Pressure plate B, 31. Locking bolt, 32. Tension column A, 33. Tension column B, 34. Bolt C, 35. Open plate. DETAILED DESCRIPTION

[0008] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0009] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0010] See attached Figure 1-8 , a multi-station self-centering processing tool for irregular products, comprising a base 1, on which a support seat 2, a clamping device, a tightening seat 9, and a support base B14 are provided, on which a positioning device is provided, on which a tightening device is provided, and on which an intermediate supporting device is provided, the positioning device comprises a positioning oblique iron 3 arranged in the side elevation of the support seat 2, on which two guide positioning columns 6 are arranged, and the positioning oblique iron 3 is fixedly connected to the side elevation of the support seat 2 by a bolt A15, and a spring A5 is arranged in the middle hole of the positioning oblique iron 3, and the spring A5 is connected to the limit screw 4 on the side elevation of the support seat 2; The jacking device includes two jacking guide columns 11, which are arranged on the inner side of the side elevation of the jacking seat 9. A positioning block 10 is arranged in front of the jacking guide column 11. A bolt B16 is arranged on the side elevation of the jacking seat 9. The bolt B16 passes through the middle hole of the positioning block 10 and is connected to the gasket 17. A pressure plate A27 is arranged above the positioning block 10. The rear end of the pressure plate A27 is connected to the side elevation of the jacking seat 9 through a supporting bolt 28. The front end of the pressure plate A27 is open, and a long bolt 29 is arranged in the opening. The long bolt 29 is fixed downward on the jacking seat 9; the jacking seat 9 is provided with a supporting base A12 , the support base A12 is provided with two support columns B13 of equal height, the tightening seat 9 on the front side of the support base A12 is provided with a tensioning column A32, the tensioning column A32 is provided with a tensioning column B33, the tensioning column B33 is provided with a bolt C34, and the upper end positioning block 10 of the tightening seat 9 is symmetrically provided with a pressing plate B30 on both sides, the pressing plate B30 is L-shaped, and an opening plate 35 is provided on the outer side of the vertical plate of the pressing plate B30, the bolt C34 is movably connected with the opening plate 35, the horizontal plates of the two pressing plates B are connected to the tightening seat 9 through the locking bolts 31, and the pressing plate B30 can be turned forward and backward around the locking bolts 31; The intermediate support device includes a support base B14, on which a short support column C22 and a long support column C20 are arranged, and above the short support column C22 and the long support column C20, a support column movable cap 21 is installed; A clamping device is provided on the base plate 1 beside the support seat 2, and the clamping device includes a support column A8, a movable support column A18, and two clamping columns 24 arranged on the base plate 1. The movable support column A18 is provided with a movable cap 19, and the clamping column 24 is provided with a clamping block 25, and the clamping block 25 is provided with a spring B26. A movable clamping rod 23 is provided at the lower front end of the clamping block 25.

[0011] First, place the base plate 1 on the platform, connect and fix the support seat 2 and the tightening seat 9 to the base plate 1 respectively, and fix the two guide positioning columns 6 to the support seat 2 by using their own threads; Install the spring A5 into the middle hole of the positioning bevel iron 3, install the positioning bevel iron 3 using the guide positioning column 6, and then lock it with the limit screw 4 to control the forward and backward travel of the positioning bevel iron 3 to prevent it from falling off; Connect the tightening guide column 11 to the tightening seat 9 by its own thread, install the positioning block 10 through the tightening guide column 11, screw the bolt B16 into the tightening seat 9, pass through the middle hole of the positioning block 10, and fasten it with the gasket 17, so that the bolt B16 can be used to control the forward and backward movement of the positioning block 10; Install the support base A12 onto the tightening seat 9, and install two support columns B13 of equal height onto the support base A12 as the product support points; assemble and connect the tensioning column A32, tensioning column B33, and bolt 34, and then use screws to lock them onto the tightening seat 9; Use locking bolts 31 to symmetrically fix the two pressing plates B30 to the tightening seat 9; Install the support base B14 on the bottom plate 1 through the holes, then install the long support column C20 and the short support column C22 on the support base B14, and then install the movable caps 21 of the two support columns C on the long support column C20 and the short support column C22 respectively; Install the support column A8, the movable support column A18 and the two clamping columns 24 on the bottom plate 1 respectively, install the movable cap 19 on the movable support column A18, put the two clamping blocks 25 on the springs B26, and install them on the clamping columns 24 respectively; Use the holes on the bottom plate 1 to press and connect it to the equipment workbench.

[0012] During installation, the bottom surface of one side of the product 7 is placed on two support columns B13, and the other side is placed on support column A8. The three points determine the plane. Synchronously, one side of the product 7 is centered by itself toward the positioning inclined iron 3 using its taper. The spring A5 will provide a tightening force to assist in centering. This end face of the product is tightened to the position of the guide positioning column 6 and stops. The zero point in the length direction is synchronously confirmed. Tighten the bolt B16 so that the positioning block 10 moves on the tightening guide column 11, and the outer side of the other side of the product is automatically centered using the inclination on both sides, and tightened synchronously.

[0013] After the workpiece is installed, rotate the movable cap 19 of the support column A18 upwards, tighten it, and then assist in supporting the bottom surface. Tighten the long bolt 29 so that the pressure plate A27 presses the middle position of the product. Use the pressure rod 23 to pass through the product hole, lock the pressure block 25, and press it onto the pressure rod 23 to press the product 7. The two symmetrical pressure plates B30 are temporarily flipped to the outside non-interference position.

[0014] After the product 7 is pressed, the movable caps 21 of the two middle support columns C are rotated upward to assist in supporting the product and prevent the product from vibrating due to the large cutter during processing. At the same time, the bolts A15 on the positioning inclined iron 3 are lightly tightened to ensure the stability of the tooling centering function during processing.

[0015] After all the above are completed, process the product plane (the middle dovetail groove is not processed). After the plane processing is completed, loosen the pressure plate A27, take it down using its quick-change opening, then flip the two symmetrical pressure plates B30 back, press them onto the just-processed plane, and tighten them using the bolts C34 on both sides, and continue processing the dovetail groove in the middle.

[0016] After the processing is completed, the two bolts C34 and the clamping block 25 are loosened (there is no need to completely remove the nuts), and the workpiece can be quickly removed.

[0017] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which are all covered by the protection scope of the present invention.

Claims

1. A multi-station self-centering processing tool for irregular products, comprising a base (1), characterized in that The base (1) is provided with a support seat (2), a clamping device, a clamping seat (9), and a support base B (14); the support seat (2) is provided with a positioning device; the clamping seat (9) is provided with a clamping device; the support base B (14) is provided with an intermediate supporting device; the positioning device comprises a positioning oblique iron (3) arranged in the side surface of the support seat (2); the positioning oblique iron (3) is provided with two guide positioning columns (6); the positioning oblique iron (3) is fixedly connected to the side surface of the support seat (2) by a bolt A (15); a spring A (5) is provided in the middle hole of the positioning oblique iron (3); the spring A (5) is connected to a limit screw (4) on the side surface of the support seat (2).

2. The multi-station self-centering processing tool for irregular products as claimed in claim 1, characterized in that The tightening device comprises two tightening guide columns (11), the tightening guide columns (11) are arranged on the inner side of the side elevation of the tightening seat (9), a positioning block (10) is arranged in front of the tightening guide column (11), a bolt B (16) is arranged on the side elevation of the tightening seat (9), the bolt B (16) passes through the middle hole of the positioning block (10) and is connected to the gasket (17), a pressure plate A (27) is arranged above the positioning block (10), the rear end of the pressure plate A (27) is connected to the side elevation of the tightening seat (9) through a supporting bolt (28), the front end of the pressure plate A (27) is open, a long bolt (29) is arranged in the opening, and the long bolt (29) is fixed downward on the tightening seat (9); the tightening seat (9) is provided with a supporting base A (12) The support base A (12) is provided with two support columns B (13) of equal height, a tension column A (32) is provided on the tightening seat (9) on the front side of the support base A (12), a tension column B (33) is provided on the tension column A (32), a bolt C (34) is provided on the tension column B (33), and a pressure plate B (30) is symmetrically provided on both sides of the positioning block (10) at the upper end of the tightening seat (9), the pressure plate B (30) is L-shaped, an opening plate (35) is provided on the outer side of the vertical plate of the pressure plate B (30), the bolt C (34) is movably connected to the opening plate (35), and the horizontal plates of the two pressure plates B are connected to the tightening seat (9) through locking bolts (31), and the pressure plate B (30) can be turned forward and backward around the locking bolts (31).

3. The multi-station self-centering processing tool for irregular products as described in claim 1 or 2, characterized in that The intermediate support device comprises a support base B (14), on which a short support column C (22) and a long support column C (20) are arranged, and above the short support column C (22) and the long support column C (20) there are support column movable caps (21).

4. The multi-station self-centering processing tool for irregular products as described in claim 1 or 2, characterized in that A clamping device is provided on the bottom plate (1) beside the support seat (2), and the clamping device comprises a support column A (8) provided on the bottom plate (1), a movable support column A (18), and two clamping columns (24), the movable support column A (18) being provided with a movable cap (19), the clamping column (24) being provided with a clamping block (25), the clamping block (25) being provided with a spring B (26), and a clamping rod (23) being provided below the front end of the clamping block (25).

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