A clamp for processing movable jaw body of bench vise

Abstract

The present invention relates to a clamp for processing the movable jaw body of a bench vise, comprising a tire plate and a side clamping assembly, a side positioning assembly, an adjustable support assembly, a positioning mechanism and a clamping mechanism installed on the tire plate. A receiving slot is provided on the tire plate between the side clamping assembly and the side positioning assembly, and the receiving slot is used to accommodate the movable jaw body. An adjustable support assembly is provided at one end of the receiving slot, and a positioning mechanism is provided at the other end. The adjustable support assembly is symmetrically arranged on both sides of the receiving slot. One end of the movable jaw body is placed on the adjustable support assembly, and the other end is placed on the positioning mechanism. The clamping mechanism is arranged on the side positioning seat, and the clamping mechanism is used to clamp the movable jaw body. The present invention clamps the non-processed side surface of the movable jaw body, so that the movable jaw body can complete multiple processing of the top surface, bottom surface and screw hole of the guide rail in one clamping, and the adjustable support assembly can be adjusted in a directional manner, thereby improving the versatility of the clamp, reducing the number of clamps, reducing the processing cost and enabling the clamp to be adjusted quickly.

Description

Technical Field

[0001] The invention relates to the technical field of processing machinery, in particular to a clamp for a movable jaw body of a processing bench vise. Background Art

[0002] In the prior art, the processing of the top and bottom surfaces of the guide rails of the movable jaw body of the bench vise generally includes: firstly, milling the bottom surface with a vertical milling machine, then positioning with the processed bottom surface, milling the upper top surface with a vertical milling machine, and finally drilling the countersink screw hole with a horizontal milling machine. This processing method has the following disadvantages: 1. Multiple milling machines are used, and the number of machine tools is large; 2. Multiple sets of special fixtures must be used, and the large number of fixtures leads to high fixture manufacturing costs; 3. Due to the need for multiple positioning, the positioning accuracy between the processing surfaces is low; 4. In order to complete the above three processes, the operator needs to place or remove the movable jaw body from three machine tools multiple times, which consumes a lot of physical strength and affects work efficiency.

[0003] With the widespread application of machining centers in recent years, there are also examples of using machining centers to process bench vises, but the number of fixtures used in processing is relatively large. Basically, a bench vise of one specification uses a set of fixtures. The versatility of the fixtures is poor, and the number of fixtures is large, resulting in high production costs. Summary of the invention

[0004] Aiming at the problems of poor versatility, large number and high manufacturing cost of the clamps in the prior art, the present invention provides a clamp for machining the movable clamp body of a bench vise.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a clamp for a processing bench vise with a movable jaw body, comprising a tire plate and a side clamping assembly, a side positioning assembly, an adjustable support assembly, a positioning mechanism and a clamping mechanism installed on the tire plate, a receiving groove is provided on the tire plate between the side clamping assembly and the side positioning assembly, the receiving groove is used to accommodate a workpiece to be processed, an adjustable support assembly is provided at one end of the receiving groove, and a positioning mechanism is provided at the other end, the adjustable support assembly is symmetrically arranged on both sides of the receiving groove, one end of the workpiece to be processed is placed on the adjustable support assembly, and the other end is placed on the positioning mechanism, the clamping mechanism is arranged on the side positioning seat, and the clamping mechanism is used to clamp the workpiece to be processed.

[0006] On the basis of the above technical solution, in order to achieve the convenience of use and the stability of the equipment, the present invention can also make the following improvements to the above technical solution:

[0007] Furthermore, the adjustable support assembly includes a support seat, a support block and a limit column, the support seat is installed on the tire plate, the support block is arranged on the side wall of the support seat and can be adjusted up and down along the side wall, the support block is provided with the limit column, and the limit column is used to limit the workpiece to be processed.

[0008] Furthermore, the support block is provided with a support column with adjustable height, and the support column is used to support the workpiece to be processed.

[0009] Furthermore, the support seat is provided with a through slot, a sliding block is provided in the through slot, the support block is connected to the sliding block via a fastener, and a cover plate is provided on the through slot.

[0010] Furthermore, a receiving groove is provided on the side wall of the support seat, a guide block is provided in the receiving groove, a guide groove corresponding to the guide block is provided on the support block, and a long hole for the fastener to pass through is provided on the guide block.

[0011] Furthermore, the support seats on both sides of the guide block are provided with first tooth portions, and the side walls of the support block are provided with second tooth portions, and the second tooth portions are meshed with the first tooth portions.

[0012] Furthermore, the side clamping assembly includes a side clamping plate, a clamping oil cylinder, a moving ball screw and a chuck, the moving ball screw and the chuck are both arranged on the side clamping plate, and the clamping oil cylinder is connected to the moving ball screw.

[0013] Furthermore, the side positioning assembly includes a side positioning seat, a high-pressure supporting oil cylinder and a side positioning screw, and the high-pressure supporting oil cylinder and the side positioning screw are arranged on the side wall of the side positioning seat.

[0014] Furthermore, the clamping mechanism includes a corner oil cylinder and a corner pressure plate, the corner oil cylinder is arranged on the side positioning seat, and the output end of the corner oil cylinder is connected to the corner pressure plate.

[0015] Furthermore, the positioning mechanism includes a positioning plate and a positioning screw, the positioning plate is T-shaped, the positioning plate is mounted on the tire plate, and the positioning screw is mounted on the positioning plate.

[0016] The beneficial effects of the present invention are as follows: by machining an accommodating through groove on the tire plate to reserve space for machining the bottom and top surfaces of the guide rails of the movable pliers, all machining can be completed by flipping the tire plate once, thereby reducing cumulative errors; by setting an adjustable support assembly, the positioning requirements of movable pliers of different specifications and sizes can be met, and preliminary positioning of the workpiece can be achieved in cooperation with the positioning mechanism; by setting a side positioning assembly to clamp the workpiece from the side, and by the clamping mechanism to clamp the top surface of the movable pliers, the firmness of the clamping of the movable pliers can be ensured. Since the present invention clamps the non-machined side surface of the movable pliers, the movable pliers can complete multiple machining of the top and bottom surfaces of the guide rails and the screw hole in one clamping, and the adjustable support assembly can be adjusted in a directional manner, thereby improving the versatility and practicality of the clamp, reducing the number of clamps, reducing the manufacturing cost, and facilitating and quickly adjusting the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the clamp of the present invention;

[0018] Figure 2 is a cross-sectional view of the clamp of the present invention;

[0019] Figure 3 It is a schematic diagram of the support seat and the guide block of the present invention.

[0020] The accompanying drawings are marked as follows: 1. tire plate; 2. side clamping plate; 3. clamping cylinder; 4. dynamic ball screw; 5. chuck; 6. guide block; 7. support block; 8. limit column; 9. high-pressure support cylinder; 10. support column; 11. workpiece to be processed; 11-1. top surface of guide rail; 12. long hole; 13. positioning plate; 14. support seat; 15. side positioning seat; 16. corner cylinder; 17. cover plate; 18. corner pressure plate; 19. side positioning screw; 20. positioning screw; 21. slider; 22. accommodating slot; 23. pin shaft. DETAILED DESCRIPTION

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0022] like Figures 1 to 3 As shown, a clamp with a movable jaw body of a processing bench vise includes a tire plate 1 and a side clamping assembly, a side positioning assembly, an adjustable support assembly, a positioning mechanism and a clamping mechanism installed on the tire plate 1. A receiving slot 22 is provided on the tire plate 1 between the side clamping assembly and the side positioning assembly. The receiving slot 22 is used to accommodate a workpiece 11 to be processed. An adjustable support assembly is provided at one end of the receiving slot 22, and a positioning mechanism is provided at the other end. The adjustable support assemblies are symmetrically arranged on both sides of the receiving slot 22. One end of the workpiece 11 to be processed is placed on the adjustable support assembly, and the other end is placed on the positioning mechanism. The clamping mechanism is arranged on the side positioning seat 15, and the clamping mechanism is used to clamp the workpiece 11 to be processed.

[0023] In this embodiment, the workpiece 11 to be processed is a movable clamp body to be processed.

[0024] The adjustable support assembly includes a support seat 14, a support block 7 and a limiting column 8. The support seat 14 is installed on the tire plate 1. The support block 7 is arranged on the side wall of the support seat 14 and can be adjusted up and down along the side wall. The support block 7 is provided with the limiting column 8, and the limiting column 8 is used to limit the workpiece 11 to be processed. The position of the workpiece 11 to be processed is preliminarily limited by the limiting column 8 to prevent the workpiece 11 to be processed from moving; by adjusting the height of the support block 7, support for workpieces 11 to be processed of different specifications can be achieved, thereby improving the versatility of the fixture, reducing the number of fixtures, and reducing the processing cost.

[0025] The support block 7 is provided with a support column 10 with adjustable height, and the support column 10 is used to support the workpiece 11 to be processed. By adjusting the height of the support column 10, the support height of the workpiece 11 to be processed can be fine-tuned, thereby improving the convenience of use and meeting the clamping requirements of workpieces 11 to be processed of different specifications.

[0026] In this embodiment, the support column 10 is an adjusting screw, which is not only convenient to obtain, but also low in cost and easy to adjust.

[0027] The support seat 14 is provided with a through slot, a slider 21 is provided in the through slot, the support block 7 is connected to the slider 21 through a fastener, and a cover plate 17 is provided on the through slot. The fastener is a bolt or a screw, and after loosening the bolt, the support block 7 can be adjusted up and down along the height of the support seat 14 to meet the positioning requirements of workpieces of different specifications and sizes, and tightening the bolt fixes the support block 7 on the support seat 14 to support and position the workpiece 11 to be processed, and the operation is convenient and fast; by providing the cover plate 17 on the through slot, foreign matter is prevented from falling into the through slot, and the slider 21 is ensured to move normally.

[0028] The side wall of the support seat 14 is provided with a receiving groove, a guide block 6 is provided in the receiving groove, a guide groove corresponding to the guide block 6 is provided on the support block 7, and a long hole 12 for the fastener to pass through is provided on the guide block 6. The guide block 6 is fixed in the receiving groove by screws, and the guide block 6 cooperates with the guide groove to guide the support block 7, ensuring that the support block 7 moves up and down normally and avoids tilting; the long hole 12 structure is convenient for the fastener to pass through to connect the support block 7 with the slider 21, and can also meet the requirements of the support block 7 moving up and down.

[0029] A first tooth portion is provided on the support seat 14 on both sides of the guide block 6, and a second tooth portion is provided on the side wall of the support block 7. The second tooth portion is meshed with the first tooth portion. The meshing of the teeth increases the connection rigidity, prevents the support block 7 from loosening, avoids the displacement of the workpiece 11 to be processed during the processing, ensures the firmness of the clamping of the workpiece 11 to be processed, and ensures the processing accuracy.

[0030] The side clamping assembly includes a side clamping plate 2, a clamping cylinder 3, a dynamic ball screw 4 and a chuck 5. The dynamic ball screw 4 and the chuck 5 are both arranged on the side clamping plate 2. The clamping cylinder 3 is connected to the dynamic ball screw 4. There are multiple dynamic ball screws 4. The ball head on the dynamic ball screw 4 can rotate flexibly. There is a draft angle on the side of the workpiece 11 to be processed. The dynamic ball screw 4 can automatically adjust and clamp according to the inclination of the workpiece, and ensure plane contact, prevent one-point clamping from causing poor contact and scratching the workpiece, and improve the direction of the clamping force.

[0031] Furthermore, the clamping cylinders 3 are provided in plurality, and the plurality of clamping cylinders 3 are evenly and staggeredly arranged on the side clamping plate 2. When the side of the workpiece 11 to be processed is clamped, if a linear distribution is adopted, the clamping force is too concentrated on one position of the workpiece, which is not only easy to cause the clamping deformation of the workpiece to affect the processing, but also easy to cause cutting vibration at positions outside the clamping point to form noise, affecting the health of the operator. The staggered distribution of the clamping cylinders 3 not only evenly distributes the clamping force to avoid deformation of the workpiece, but also effectively solves the problem of vibration at non-clamping points, improves the processing environment, and improves the processing quality.

[0032] The side positioning assembly includes a side positioning seat 15, a high-pressure support oil cylinder 9 and a side positioning screw 19, and the high-pressure support oil cylinder 9 and the side positioning screw 19 are arranged on the side wall of the side positioning seat 15. Adding a high-pressure support oil cylinder 9 at a corresponding position can increase the local support point of the workpiece 11 to be processed, prevent local force deformation, and improve the processing quality. By adjusting the screwing depth of the side positioning screw 19 and adjusting the extension length of the side positioning screw 19, the workpiece 11 to be processed is placed in a suitable processing position.

[0033] The clamping mechanism includes a corner oil cylinder 16 and a corner pressure plate 18. The corner oil cylinder 16 is arranged on the side positioning seat 15, and the output end of the corner oil cylinder 16 is connected to the corner pressure plate 18. The corner pressure plate 18 is a rectangular parallelepiped, and the middle part of the corner pressure plate 18 is connected to the output end of the corner oil cylinder 16 through a pin shaft 23. The corner oil cylinder 16 drives the corner pressure plate 18 to rotate and move downward to clamp the workpiece, ensure the firmness of the clamping of the workpiece 11 to be processed, and realize the processing of the bottom surface of the guide rail of the workpiece 11 to be processed; when it is necessary to process the top surface 11-1 of the guide rail of the workpiece 11 to be processed, the corner oil cylinder 16 drives the corner pressure plate 18 to rotate in the opposite direction, and moves upward to separate from the workpiece 11 to be processed, so that the tool processes the top surface 11-1 of the guide rail of the workpiece 11 to be processed.

[0034] The positioning mechanism includes a positioning plate 13 and a positioning screw 20. The positioning plate 13 is T-shaped and is mounted on the tire plate 1. The positioning screw 20 is mounted on the positioning plate 13. The positioning plate 13 is detachably mounted on the tire plate 1. The positioning plate 13 supports the end of the guide rail of the workpiece 11 to be processed to prevent the workpiece 11 from tilting. By adjusting the height of the positioning screw 20 or replacing the positioning plate 13, the positioning requirements of workpieces 11 of different sizes to be processed can be met, thereby further improving the versatility of the fixture and reducing the number and types of fixtures.

[0035] In order to improve the processing efficiency, the accommodating through grooves 22 are provided with a plurality of them, and each of the accommodating through grooves 22 is provided with a corresponding side clamping assembly, a side positioning assembly, an adjustable support assembly, a positioning mechanism and a clamping mechanism, so as to achieve one-time clamping and complete the processing of multiple workpieces, thereby improving the processing efficiency; a clamping mechanism is shared between adjacent accommodating through grooves 22, thereby reducing the types of parts, reducing the overall weight of the fixture, and facilitating the flipping of the tire plate 1.

[0036] The working process of the present invention is as follows:

[0037] The fixture is installed on the four axes of the machining center. The fixture is connected to the existing oil injection system through the four axes. The machining center controls the oil pressure system. The oil pressure system has stable and reliable power. The clamping force of the fixture is stable and can be adjusted as needed to achieve automatic clamping, save clamping time, and reduce labor intensity.

[0038] The workpiece 11 to be processed is placed on the accommodating groove 22, the head of the workpiece 11 to be processed contacts the adjustable supporting assembly, the tail of the workpiece 11 to be processed contacts the positioning mechanism, and the side of the workpiece 11 to be processed is clamped by the side clamping assembly and the side positioning assembly.

[0039] Press the switch to control the hydraulic oil of the oil injection system to enter the corner cylinder 16 through the four axes. The corner cylinder 16 drives the corner pressure plate 18 to rotate 90° and then move downward, so that the workpiece 11 to be processed is in close contact with the positioning mechanism; then the hydraulic oil enters the high-pressure supporting cylinder 9, the cylinder extends outward to contact the workpiece 11 to be processed and locks it to play a supporting role, and finally the hydraulic oil enters the clamping cylinder 3, and through cooperation with the high-pressure supporting cylinder 9, the side of the workpiece 11 to be processed is clamped, thereby completing the clamping of the workpiece 11 to be processed.

[0040] Start the processing program, and the four-axis flipping starts to process the bottom surface of the guide rail and the lead screw hole of the workpiece 11 to be processed. After the processing is completed, the four-axis and the tire plate 1 are flipped, and the hydraulic oil is introduced into the corner cylinder 16 again, driving the corner pressure plate 18 to rise and separate from the workpiece 11 to be processed and rotate 90° in the opposite direction to make room for processing. The machining center continues to process the top surface 11-1 of the guide rail of the workpiece 11 to be processed until it is finished. Because the workpiece 11 to be processed is placed horizontally when processing the top surface 11-1 of the guide rail, the side clamping assembly, the side positioning assembly, the adjustable support assembly, and the positioning mechanism clamp and position the workpiece 11 to be processed. Therefore, the separation of the corner pressure plate 18 from the workpiece 11 to be processed will not affect the firmness of the clamping of the workpiece 11 to be processed.

[0041] By installing a set of fixtures on the machining center, the machining of the top surface 11-1, bottom surface and lead screw hole of the movable clamp body guide rail of various specifications can be completed, which greatly reduces the number of fixtures, improves machining efficiency and reduces production costs.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamp for processing a movable jaw body of a bench vise, characterized in that: The invention comprises a tire plate (1) and a side clamping assembly, a side positioning assembly, an adjustable support assembly, a positioning mechanism and a clamping mechanism installed on the tire plate (1); a receiving slot (22) is provided on the tire plate (1) between the side clamping assembly and the side positioning assembly; the receiving slot (22) is used to receive a workpiece (11) to be processed; one end of the receiving slot (22) is provided with an adjustable support assembly, and the other end is provided with a positioning mechanism; the adjustable support assembly is symmetrically arranged on both sides of the receiving slot (22); one end of the workpiece (11) to be processed is placed on the adjustable support assembly, and the other end is placed on the positioning mechanism; the clamping mechanism is arranged on the side positioning seat (15), and the clamping mechanism is used to clamp the workpiece (11) to be processed; The adjustable support assembly comprises a support block (7), a limiting column (8) and a support seat (14); the support seat (14) is mounted on the tire plate (1); the support block (7) is arranged on the side wall of the support seat (14) and can be adjusted up and down along the side wall; the support block (7) is provided with the limiting column (8), the limiting column (8) is used to limit the workpiece (11) to be processed; the support block (7) is provided with a support column (10) with adjustable height, the support column (10) is used to support the workpiece (11) to be processed; the support seat (14) is provided with a through slot, the A slider (21) is provided in the through groove, the support block (7) is connected to the slider (21) via a fastener, a cover plate (17) is provided on the through groove, a receiving groove is provided on the side wall of the support seat (14), a guide block (6) is provided in the receiving groove, a guide groove corresponding to the guide block (6) is provided on the support block (7), a long hole (12) for the fastener to pass through is provided on the guide block (6), the support seats (14) on both sides of the guide block (6) are provided with a first tooth portion, and a second tooth portion is provided on the side wall of the support block (7), and the second tooth portion is meshed with the first tooth portion.

2. The clamp for machining a bench vise movable body according to claim 1, characterized in that: The side clamping assembly comprises a side clamping plate (2), a clamping oil cylinder (3), a moving steel ball screw (4) and a chuck (5); the moving steel ball screw (4) and the chuck (5) are both arranged on the side clamping plate (2); and the clamping oil cylinder (3) is connected to the moving steel ball screw (4).

3. The clamp for machining a bench vise movable body according to claim 1, characterized in that: The side positioning assembly comprises a side positioning seat (15), a high-pressure supporting oil cylinder (9) and a side positioning screw (19); the high-pressure supporting oil cylinder (9) and the side positioning screw (19) are arranged on the side wall of the side positioning seat (15).

4. The clamp for machining a bench vise movable body according to claim 3, characterized in that: The pressing mechanism comprises a corner oil cylinder (16) and a corner pressure plate (18); the corner oil cylinder (16) is arranged on the side positioning seat (15); and the output end of the corner oil cylinder (16) is connected to the corner pressure plate (18).

5. The clamp for machining a bench vise movable body according to claim 1, characterized in that: The positioning mechanism comprises a positioning plate (13) and a positioning screw (20); the positioning plate (13) is T-shaped, the positioning plate (13) is mounted on the tire plate (1), and the positioning screw (20) is mounted on the positioning plate (13).

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