Multi-station clamping tool for double-station machining

Abstract

The utility model discloses a multi-station clamping tool for double-station machining, which belongs to the technical field of clamping tools and comprises a bridge plate. A plurality of second clamping assemblies are installed on the rear side of the bridge plate at equal intervals, a plurality of first positioning assemblies and side edge fixing assemblies are installed on the front side of the bridge plate at equal intervals, and the first positioning assemblies and the side edge fixing assemblies are alternately arranged; the second clamping assembly comprises a second positioning assembly and a three-direction clamping assembly, the second positioning assembly is installed on the rear side of the bridge plate, and the three-direction clamping assembly is installed on the upper side of the bridge plate and the upper side of the second positioning assembly. In this way, the first positioning assembly carries out supporting and appearance positioning on the fixing block; then the protruding block is pressed on the other side through the side edge fixing assembly, the workpiece is clamped, and the top and the part provided with the machining groove are not shielded; two-point positioning is conducted on the inserting groove and the positioning groove through the second positioning assembly, then the top and the side edges of the workpiece are clamped through the three-direction clamping assembly, and clamping is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping tooling, in particular to a multi-station clamping tooling for double-station machining. Background Art

[0002] When a workpiece is being machined, in order to ensure the machining accuracy, a fixture is usually used to quickly position and clamp the workpiece; common positioning methods include contour positioning, pin-hole positioning, etc., and after positioning, the workpiece is clamped through the cooperation of clamping or pressing components.

[0003] For example, Chinese Patent CN220519464U discloses a clamping tooling. This tooling is provided with two groups of clamping components, and a clamping space is formed between the two groups of clamping components. By adjusting the width between the first clamping component and the second clamping component, the device can clamp workpieces of different sizes.

[0004] However, this fixture can only clamp regular workpieces, and it is difficult to stably clamp irregular workpieces; if a single fixture is set, it is difficult to ensure the clamping stability. If the workpieces are clamped and machined separately, it is easy to disperse the processes and cause defective products to flow out.

[0005] Based on this, the utility model designs a multi-station clamping tooling for double-station machining to solve the above problems. Summary of the Utility Model

[0006] Aiming at the above-mentioned disadvantages of the prior art, the utility model provides a multi-station clamping tooling for double-station machining.

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0008] A multi-station clamping tooling for double-station machining includes a bridge plate;

[0009] A plurality of groups of second clamping components are equidistantly installed on the rear side of the bridge plate, and a plurality of groups of first positioning components and side fixing components are equidistantly installed on the front side of the bridge plate, and the first positioning components and the side fixing components are arranged alternately;

[0010] The second clamping component includes a second positioning component and a three-way clamping component. The second positioning component is installed on the rear side of the bridge plate, and the three-way clamping component is installed on the bridge plate and the upper side of the second positioning component.

[0011] Furthermore, the second positioning component includes a chuck seat, a mounting seat, a positioning post and a positioning pin. The chuck seat is fixedly installed on the bridge plate, a mounting seat for supporting an 8-shaped base is fixedly installed in the middle of the upper side of the chuck seat, a positioning post inserted into a slot and a positioning pin inserted into a positioning groove are fixedly installed on the mounting seat.

[0012] Furthermore, the second positioning component further includes a sunken platform, and a sunken platform for supporting the bottom surface of the convex block is fixedly installed on one side of the chuck seat.

[0013] Furthermore, the three-way clamping component includes an inclined pull cylinder, a first claw, a second claw and a pressing component. The inclined pull cylinders are symmetrically and fixedly installed on the upper side of the chuck seat. The inclined pull cylinders are located on both sides of the mounting seat. A first claw for clamping the fixed block is fixedly installed on the output end of one inclined pull cylinder, and the inner side surface of the first claw is set as a curved surface conforming to the side of the fixed block; a second claw for clamping the convex block with a V-shaped outer side is fixedly installed on the output end of the other inclined pull cylinder, and the inner side surface of the second claw is set as a V-shaped surface conforming to the outer side of the convex block; the pressing component is installed on the upper side of the crossbeam.

[0014] Furthermore, the pressing component includes a first oil cylinder and a pressing block. The first oil cylinder is fixedly installed inside the crossbeam, and a pressing block for pressing the top surface of the fixed block is fixedly installed on the output end of the first oil cylinder.

[0015] Furthermore, the first positioning component includes a mounting block, a support platform and an upper groove plate. The mounting block is fixedly installed on the upper side of the crossbeam. A support platform for supporting the fixed block is fixedly installed on one side edge of the bottom of the mounting block, and the upper groove plate is fixedly installed on the top of the mounting block; the mounting block, the support platform and the upper groove plate together form a receiving groove for receiving the workpiece, and do not block the side where the processing groove is provided on the workpiece.

[0016] Furthermore, the side of the upper groove plate close to the support platform is set as a curved surface conforming to the side of the base.

[0017] Furthermore, the side fixing component includes a second oil cylinder, a slider and a V-shaped groove. The second oil cylinder is fixedly installed on the upper side of the crossbeam. The output end of the second oil cylinder is fixedly installed with a slider, and a V-shaped groove conforming to the outer side of the convex block is provided at the end of the slider.

[0018] The beneficial effects of the present utility model compared with the prior art are as follows:

[0019] The first positioning component supports and positions the shape of the fixed block; subsequently, the side fixing component presses the convex block on the other side to clamp the workpiece, so that the top and the part provided with the processing groove are not blocked, facilitating the processing of the positioning groove and the slot at the bottom of the base, and rough machining of the processing groove can be carried out; after the positioning groove is machined into the slot, the fixed block of the processed workpiece is placed upward and the base is placed downward on the second positioning component. The second positioning component performs two-point positioning on the slot and the positioning groove, and then the three-way clamping component clamps the top and the side of the workpiece, making the clamping more stable and not blocking the processing groove on the side of the workpiece, thus facilitating the finish machining of the processing groove; by setting multiple groups of second positioning components, three-way clamping components, first positioning components and side fixing components, the processes are concentrated. When processing workpieces that need to be machined on multiple sides, they can be clamped and fixed in sequence according to the processing requirements, avoiding processing errors caused by transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 is a three-dimensional Figure 1 ;

[0022] Figure 2 is a three-dimensional Figure 2 ;

[0023] Figure 3 of a multi-station clamping tooling for double-station machining of the present invention;

[0024] Figure 4 is Figure 1 an enlarged view of part A in

[0025] Figure 5 is Figure 2 an enlarged view of part B in

[0026] The reference numerals in the drawings respectively represent:

[0027] 1. Bridge plate; 2. Second clamping assembly; 21. Second positioning assembly; 211. Chuck base; 212. Mounting base; 213. Positioning post; 214. Positioning pin; 215. Sinking platform; 22. Three-way clamping assembly; 221. Diagonal tension cylinder; 222. First jaw; 223. Second jaw; 224. First oil cylinder; 225. Pressure block; 3. First positioning assembly; 31. Mounting block; 32. Support platform; 33. Upper groove plate; 4. Side fixing assembly; 41. Second oil cylinder; 42. Slide block; 43. V-shaped groove; 5. Workpiece; 51. Fixed block; 52. Base; 53. Convex block; 54. Slot; 55. Positioning groove; 56. Machining groove. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment 1

[0030] There is a kind of fitting on the market, whose bottom is in an 8-shape, and there is a V-shaped convex block on the upper side. Its shape is relatively complex, and multiple surfaces need to be machined.

[0031] In some embodiments, please refer to the attached drawings of the specification Figures 1-3 , a multi-station clamping tool for double-station machining, including a bridge plate 1;

[0032] The front side of the bridge plate 1 is set as the first clamping station for machining the bottom slot 54 and positioning groove 55 of the workpiece 5; the rear side of the bridge plate 1 is set as the second clamping station for machining the side machining groove 56 of the workpiece 5;

[0033] A plurality of groups of second clamping assemblies 2 are equidistantly installed on the rear side of the bridge plate 1, and a plurality of groups of first positioning assemblies 3 and side fixing assemblies 4 are equidistantly installed on the front side of the bridge plate 1, and the first positioning assemblies 3 and side fixing assemblies 4 are arranged alternately;

[0034] The second clamping assembly 2 includes a second positioning assembly 21 and a three-way clamping assembly 22. The second positioning assembly 21 is installed on the rear side of the bridge plate 1, and the three-way clamping assembly 22 is installed on the upper sides of the bridge plate 1 and the second positioning assembly 21.

[0035] In this embodiment, when the multi-station clamping tooling for double-station machining works properly, the bottom of the workpiece 5 is turned upward, the figure-eight-shaped fixing block 51 is turned downward, and the base 52 is turned upward and placed into the first positioning component 3. The first positioning component 3 supports the bottom of the fixing block 51 and simultaneously performs contour positioning on one side of the fixing block 51 and the base 52. Subsequently, the side fixing component 4 presses the convex block 53 on the other side to clamp the workpiece 5, so that the top and the part provided with the machining groove 56 are not blocked, thereby facilitating the machining of the positioning groove 55 and the slot 54 at the bottom of the base 52, and rough machining can be performed on the machining groove 56. After the positioning groove 55 is machined into the slot 54, the fixing block 51 of the machined workpiece 5 is turned upward and the base 52 is turned downward and placed on the second positioning component 21. The second positioning component 21 performs two-point positioning on the slot 54 and the positioning groove 55. Subsequently, the three-way clamping component 22 clamps the top and the side of the workpiece 5, making the clamping more stable and not blocking the machining groove 56 on the side of the workpiece 5, thereby facilitating the finish machining of the machining groove 56. By providing multiple groups of the second positioning component 21, the three-way clamping component 22, the first positioning component 3, and the side fixing component 4, the workpiece 5 that needs to be machined on multiple surfaces can be clamped and fixed in sequence according to the machining requirements, avoiding machining errors caused by turnover.

[0036] Embodiment 2

[0037] In some embodiments, as Figures 1-5 shown, as a preferred embodiment of the present invention, the second positioning component 21 includes a chuck seat 211, a mounting seat 212, a positioning post 213, and a positioning pin 214. The chuck seat 211 is fixedly installed on the crossbeam 1. The middle part of the upper side of the chuck seat 211 is fixedly installed with the mounting seat 212 for supporting the figure-eight-shaped base 52. The mounting seat 212 is fixedly installed with the positioning post 213 inserted into the slot 54 and the positioning pin 214 inserted into the positioning groove 55.

[0038] The second positioning component 21 further includes a sunken platform 215. One side of the chuck seat 211 is fixedly installed with the sunken platform 215 for supporting the bottom surface of the convex block 53.

[0039] The three-way clamping component 22 includes an inclined pulling cylinder 221, a first claw 222, a second claw 223, and a pressing component. The inclined pulling cylinders 221 are symmetrically and fixedly installed on the upper side of the chuck seat 211. The inclined pulling cylinders 221 are located on both sides of the mounting seat 212. The output end of one inclined pulling cylinder 221 is fixedly installed with the first claw 222 for clamping the fixing block 51. The inner side surface of the first claw 222 is set as a curved surface conforming to the side of the fixing block 51. The output end of the other inclined pulling cylinder 221 is fixedly installed with the second claw 223 for clamping the convex block 53 with a V-shaped outer side. The inner side surface of the second claw 223 is set as a V-shaped conforming to the outer side of the convex block 53. The pressing component is installed on the upper side of the crossbeam 1.

[0040] The pressing assembly includes a first oil cylinder 224 and a pressing block 225. The first oil cylinder 224 is fixedly installed inside the bridge plate 1, and a pressing block 225 for pressing the top surface of the fixed block 51 is fixedly installed on the output end of the first oil cylinder 224;

[0041] The first positioning assembly 3 includes a mounting block 31, a support platform 32, and an upper groove plate 33. The mounting block 31 is fixedly installed on the upper side of the bridge plate 1. One side of the bottom of the mounting block 31 is fixedly installed with a support platform 32 for supporting the fixed block 51, and the upper groove plate 33 is fixedly installed on the top of the mounting block 31; The mounting block 31, the support platform 32, and the upper groove plate 33 together form a receiving groove for receiving the workpiece 5, and do not block the side of the workpiece 5 where the processing groove 56 is provided;

[0042] One side of the upper groove plate 33 close to the support platform 32 is provided with a curved surface conforming to the side of the base 52;

[0043] The side fixing assembly 4 includes a second oil cylinder 41, a slider 42, and a V-shaped groove 43. The second oil cylinder 41 is fixedly installed on the upper side of the bridge plate 1. The output end of the second oil cylinder 41 is fixedly installed with a slider 42, and a V-shaped groove 43 conforming to the outside of the convex block 53 is provided at the end of the slider 42.

[0044] In this embodiment, when the second clamping assembly 2, the first positioning assembly 3, and the side fixing assembly 4 work normally, the workpiece 5 is placed between the mounting block 31, the support platform 32, and the upper groove plate 33. The bottom of the workpiece 5 is supported by the support platform 32, and the upper side edge of the workpiece 5 is positioned and supported by the upper groove plate 33. The second oil cylinder 41 drives the slider 42 to move towards the workpiece 5, so as to perform floating clamping on the workpiece 5 through the V-shaped groove 43 conforming to the convex block 53; thus facilitating the processing of the slot 54, the positioning slot 55, and the processing groove 56; After processing, the second oil cylinder 41 drives the slider 42 to reset, takes out the workpiece 5, aligns the processed slot 54 with the positioning post 213, and aligns the positioning slot 55 with the positioning pin 214, so as to place the base 52 on the mounting seat 212; The workpiece 5 is positioned by the positioning post 213 and the positioning pin 214, and the workpiece 5 is supported by the mounting seat 212; Subsequently, the diagonal cylinder 221 drives the first claw 222 and the second claw 223 to move, and the side of the workpiece 5 is floatingly clamped by the first claw 222 and the second claw 223. The first oil cylinder 224 drives the pressing block 225 to move, so that the pressing block 225 rotates to press the fixed block 51; thus realizing the precise positioning and clamping of the workpiece 5 and facilitating the finish machining of the processing groove 56.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-station clamping tool for double-station processing, comprising a bridge plate (1), characterized in that: A plurality of groups of second clamping assemblies (2) are installed at equal intervals on the rear side of the bridge plate (1), and a plurality of groups of first positioning assemblies (3) and side fixing assemblies (4) are installed at equal intervals on the front side of the bridge plate (1), wherein the first positioning assemblies (3) and side fixing assemblies (4) are arranged alternately; The second clamping assembly (2) comprises a second positioning assembly (21) and a three-way clamping assembly (22), the second positioning assembly (21) being mounted on the rear side of the bridge plate (1), and the three-way clamping assembly (22) being mounted on the upper side of the bridge plate (1) and the second positioning assembly (21); The second positioning assembly (21) comprises a chuck seat (211), a mounting seat (212), a positioning column (213) and a positioning pin (214); the chuck seat (211) is fixedly mounted on the bridge plate (1); a mounting seat (212) supporting the 8-shaped base (52) is fixedly mounted on the middle part of the upper side of the chuck seat (211); a positioning column (213) plugged into the slot (54) and a positioning pin (214) plugged into the positioning groove (55) are fixedly mounted on the mounting seat (212); The second positioning assembly (21) further comprises a sinking platform (215), and a sinking platform (215) for supporting the bottom surface of the protrusion (53) is fixedly mounted on one side of the chuck seat (211); The three-way clamping assembly (22) comprises an inclined pull cylinder (221), a first clamping claw (222), a second clamping claw (223) and a clamping assembly. The inclined pull cylinder (221) is symmetrically fixedly mounted on the upper side of the chuck seat (211). The inclined pull cylinder (221) is located on both sides of the mounting seat (212). A first clamping claw (222) for clamping a fixed block (51) is fixedly mounted on the output end of one side of the inclined pull cylinder (221). The inner side surface of the first clamping claw (222) is configured as a curved surface conforming to the side edge of the fixed block (51). A second clamping claw (223) for clamping a V-shaped protrusion (53) on the outer side is fixedly mounted on the output end of the inclined pull cylinder (221) on the other side. The inner side surface of the second clamping claw (223) is configured as a V-shape conforming to the outer side of the protrusion (53). The clamping assembly is mounted on the upper side of the bridge plate (1).

2. The multi-station clamping tool for double-station processing according to claim 1 is characterized in that: The pressing assembly comprises a first oil cylinder (224) and a pressing block (225); the first oil cylinder (224) is fixedly mounted on the inner side of the bridge plate (1); and a pressing block (225) is fixedly mounted on the output end of the first oil cylinder (224) for pressing the top surface of the fixed block (51).

3. The multi-station clamping tool for double-station processing according to claim 2 is characterized in that: The first positioning assembly (3) comprises a mounting block (31), a support platform (32) and an upper slot plate (33); the mounting block (31) is fixedly mounted on the upper side of the bridge plate (1); a support platform (32) for supporting a fixed block (51) is fixedly mounted on one side of the bottom of the mounting block (31); and the upper slot plate (33) is fixedly mounted on the top of the mounting block (31); the mounting block (31), the support platform (32) and the upper slot plate (33) together constitute a receiving slot for receiving a workpiece (5), and do not block a side of the workpiece (5) on which a processing slot (56) is provided.

4. The multi-station clamping tool for double-station processing according to claim 3 is characterized in that: A side of the upper groove plate (33) close to the support platform (32) is configured as a curved surface conforming to the side edge of the base (52).

5. The multi-station clamping tool for double-station processing according to claim 4 is characterized in that: The side fixing assembly (4) comprises a second oil cylinder (41), a slider (42) and a V-shaped groove (43); the second oil cylinder (41) is fixedly mounted on the upper side of the bridge plate (1); the slider (42) is fixedly mounted on the output end of the second oil cylinder (41); and the end of the slider (42) is provided with a V-shaped groove (43) conforming to the outer side of the protrusion (53).

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