Multi-station spring displacement pressing and loosening clamp

Abstract

The utility model discloses a multi-station spring displacement compressing and loosening clamp, which belongs to the technical field of clamps and comprises a base plate. A plurality of groups of side surface clamping mechanisms are uniformly arranged on the left side of the base plate; the side face clamping mechanism comprises a quick-release side pressing assembly and a positioning assembly which are arranged on the base plate. A plurality of vertical clamping mechanisms are evenly arranged on the right side of the base plate. By means of the mode, the quick-release type side pressing assembly and the positioning assembly are matched with the structure of the part, so that the part is clamped stably in the side direction, the space of the clamp is effectively utilized, the productivity is improved, the positioning precision is improved, and machining feeding is facilitated; the part subjected to preliminary machining is placed on the up-down clamping mechanism, the up-down clamping mechanism is matched with a first groove hole and a second groove hole formed in the part to achieve up-down positioning of the part, and therefore the part can be smoothly machined into a finished product. And through cooperation of the multiple side face clamping mechanisms and the up-down clamping mechanisms, multiple workpieces can be clamped and fixed at the same time, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixtures, in particular to a multi-station spring displacement pressing, loosening and clamping fixture. Background Art

[0002] The numerical control machining of metal components is an important technology in modern manufacturing. Specific fixtures need to be set to clamp and fix the blank, so that the parts to be machined on the blank are exposed, facilitating the tool feed and retraction during numerical control machining.

[0003] Chinese Patent CN210731702U discloses a CNC fixture, which includes a base and a plurality of fixture components installed on the base. The fixture components include an expandable inner clamping component, a collapsible outer clamping component and a driving cylinder. The fixture clamps the workpiece by collapsing the outer clamping component to achieve precise positioning of the workpiece. However, the fixture has a large area of blocking the workpiece, restricting the movement of the tool of the numerical control machine tool and making it inconvenient for the tool feed and retraction operations of the machine tool.

[0004] Based on this, the utility model designs a multi-station spring displacement pressing, loosening and clamping fixture to solve the above problems. Summary of the Utility Model

[0005] Aiming at the above-mentioned disadvantages of the prior art, the utility model provides a multi-station spring displacement pressing, loosening and clamping fixture.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0007] A multi-station spring displacement pressing, loosening and clamping fixture includes a substrate;

[0008] A plurality of groups of side clamping mechanisms for clamping and fixing parts from the side to facilitate tool feed during machining are evenly arranged on the left side of the substrate;

[0009] The side clamping mechanism includes a quick-release side pressing component and a positioning component arranged on the substrate. The positioning component is used to position the part, and the quick-release side pressing component is used to cooperate with the positioning component to perform side clamping on the part, facilitating the tool feed and retraction for machining the slot hole 1 and slot hole 2 of the part;

[0010] A plurality of groups of up-and-down clamping mechanisms for clamping the preliminarily machined parts up and down are evenly arranged on the right side of the substrate.

[0011] Furthermore, the positioning component includes a first fixed seat and a positioning block. The first fixed seat and the positioning block are fixedly installed on the substrate, and the first fixed seat and the positioning block are arranged in a fitting manner to form a corner positioning structure.

[0012] Further, the quick-release side pressing assembly includes a first pressing oil cylinder, a neck-shaped stud, a T-shaped groove, and a side pressing block. The first pressing oil cylinder is fixedly installed on the substrate and is located on one side of the first fixing seat. The output end of the first pressing oil cylinder is fixedly installed with a neck-shaped stud. The bottom of the side pressing block is in sliding fit with the first fixing seat, and a T-shaped groove for limit sliding connection with the neck-shaped stud is formed at one end of the side pressing block close to the first pressing oil cylinder.

[0013] Further, a positioning step for mating parts is formed at one end of the first fixing seat close to the side pressing block, and a positioning bottom surface for fitting with the bottom of the part is provided at the inner bottom of the first fixing seat. Protrusions and arc-shaped blocks for mating parts are respectively formed at the upper and lower ends of the side pressing block on the side close to the first fixing seat. The positioning step and the protrusion cooperate to position the T-shaped structure at the top of the part.

[0014] Further, the up-and-down clamping mechanism includes a diagonal tension pressing assembly and a bottom positioning assembly arranged on the substrate. The bottom positioning assembly is used to position the part in cooperation with the first slot and the second slot of the part, and the diagonal tension pressing assembly presses the part against the bottom positioning assembly through a diagonal tension structure.

[0015] Further, the bottom positioning assembly includes a second fixing seat, a first positioning pin, and a second positioning pin. The second fixing seat is fixedly installed on the substrate, and a first positioning pin inserted into the first slot of the part and a second positioning pin inserted into the second slot of the part are fixedly installed at the upper end of the second fixing seat.

[0016] Further, the diagonal tension pressing assembly includes a second pressing oil cylinder, a pressing plate, a connecting plate, a fixing block, and a downward pressing block. The second pressing oil cylinder is fixedly installed on the substrate and is located on one side of the second fixing seat, and a fixing block is fixedly installed at the upper end of the housing of the second fixing seat. One end of the pressing plate is hinged to the output end of the second pressing oil cylinder, and a downward pressing block for pressing the part downward is fixedly installed at the other end of the pressing plate. Both ends of the connecting plate are respectively hinged to the middle of the pressing plate and the fixing block.

[0017] Further, circular blocks protruding from both ends of the downward pressing block are provided to enhance the pressing effect on the part.

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

[0019] In the present utility model, the part is placed on the positioning assembly to achieve positioning of the part. The quick-release side pressing assembly applies pressure to the part from the side of the part. Through the cooperation of the quick-release side pressing assembly and the positioning assembly with the configuration of the part, firm clamping of the part is achieved, so that the bottom of the part is suspended and exposed, effectively utilizing the fixture space, providing production capacity, improving the positioning accuracy, facilitating machining feed, and completing the forming of the first slot and the second slot.

[0020] Subsequently, the preliminarily processed parts are placed on the upper and lower clamping mechanisms. The upper and lower clamping mechanisms cooperate with the formed slot one and slot two on the parts to achieve the upper and lower positioning of the parts, so that the side surfaces of the parts are exposed, enabling the parts to be smoothly processed into finished products;

[0021] Through the cooperation of multiple side clamping mechanisms and the upper and lower clamping mechanisms, not only can multiple workpieces be clamped and fixed simultaneously, but also the workstations are compact, effectively improving the production efficiency. Brief Description of the Drawings

[0022] 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 following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 Is a three-dimensional view of the part;

[0024] Figure 2 Is a three-dimensional view of a multi-station spring displacement pressing and releasing fixture of the present invention;

[0025] Figure 3 Is a partial front view of a multi-station spring displacement pressing and releasing fixture of the present invention;

[0026] Figure 4 Is a three-dimensional view of the side clamping mechanism of the present invention;

[0027] Figure 5 Is a three-dimensional view of the upper and lower clamping mechanism of the present invention.

[0028] The reference numerals in the drawings respectively represent:

[0029] 1. Substrate; 2. Part; 21. Slot one; 22. Slot two; 3. Side clamping mechanism; 31. Quick-release side pressing assembly; 311. First pressing oil cylinder; 312. Neck-shaped column head; 313. T-shaped slot; 314. Side pressing block; 32. Positioning assembly; 321. First fixed seat; 322. Positioning block; 3211. Positioning step; 3212. Positioning bottom surface; 3141. Convex block; 3142. Arc-shaped block; 4. Upper and lower clamping mechanism; 41. Oblique pulling and pressing assembly; 411. Second pressing oil cylinder; 412. Pressing plate; 413. Connecting plate; 414. Fixed block; 415. Lower pressing block; 42. Bottom positioning assembly; 421. Second fixed seat; 422. First positioning pin; 423. Second positioning pin. Detailed Embodiments

[0030] 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. Apparently, 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.

[0031] In the following description, "left", "right", "front", "rear", "upper", and "lower" mentioned are oriented in the perspective direction of the front view.

[0032] Embodiment 1

[0033] In some embodiments, please refer to the attached drawings of the specification Figures 1-5 , a multi-station spring displacement clamping and releasing fixture, including a substrate 1;

[0034] A plurality of groups of side clamping mechanisms 3 for clamping and fixing the part 2 from the side are evenly arranged on the left side of the substrate 1, facilitating machining feed;

[0035] The side clamping mechanism 3 includes a quick-release side pressing component 31 and a positioning component 32 arranged on the substrate 1. The positioning component 32 is used to position the part 2, and the quick-release side pressing component 31 is used to cooperate with the positioning component 32 to perform side clamping on the part 2 and suspend the part 2, facilitating the feed and retraction of the tool when machining the slot hole 21 and the slot hole 22 of the part 2;

[0036] A plurality of groups of upper and lower clamping mechanisms 4 for performing upper and lower clamping on the preliminarily machined part 2 are evenly arranged on the right side of the substrate 1.

[0037] In the present utility model, the part 2 is placed on the positioning component 32 to realize the positioning of the part 2. The quick-release side pressing component 31 applies pressure to the part 2 from the side of the part 2. Through the cooperation of the quick-release side pressing component 31 and the positioning component 32 with the configuration of the part 2, a firm clamping of the part 2 is achieved, so that the bottom of the part 2 is suspended and exposed, effectively utilizing the fixture space, providing production capacity, improving the positioning accuracy, facilitating machining feed, and completing the forming of the slot hole 21 and the slot hole 22;

[0038] Subsequently, the preliminarily machined part 2 is placed on the upper and lower clamping mechanism 4. The upper and lower clamping mechanism 4 cooperates with the slot hole 21 and the slot hole 22 formed on the part 2 to realize the upper and lower positioning of the part 2, so that the side of the part 2 is exposed, and the part 2 can be smoothly machined into a finished product;

[0039] By cooperating with multiple side clamping mechanisms 3 and upper and lower clamping mechanisms 4, not only can multiple workpieces be clamped and fixed simultaneously, but also the workstations are compact, effectively improving production efficiency.

[0040] The positioning component 32 includes a first fixed seat 321 and a positioning block 322. The first fixed seat 321 and the positioning block 322 are fixedly installed on the substrate 1. The first fixed seat 321 and the positioning block 322 are arranged in a fitting manner to form a corner positioning structure, realizing single-corner positioning of the part 2.

[0041] The quick-release side pressing component 31 includes a first pressing oil cylinder 311, a neck-shaped stud 312, a T-shaped groove 313 and a side pressing block 314. The first pressing oil cylinder 311 is fixedly installed on the substrate 1 and is located on one side of the first fixed seat 321. The output end of the first pressing oil cylinder 311 is fixedly installed with a neck-shaped stud 312; the bottom of the side pressing block 314 is in sliding connection with the first fixed seat 321 in a fitting manner. A T-shaped groove 313 for limiting sliding connection with the neck-shaped stud 312 is opened at one end of the side pressing block 314 close to the first pressing oil cylinder 311; thus, the side pressing block 314 can slide up and down outside the neck-shaped stud 312 through the T-shaped groove 313, realizing quick disassembly and assembly of the side pressing block 314 to adapt to the clamping requirements of parts 2 with different structures; the left and right movement of the side pressing block 314 can be controlled by the first pressing oil cylinder 311, and the side clamping effect of the part 2 is realized through the cooperation of the side pressing block 314 and the first fixed seat 321.

[0042] A positioning step 3211 for fitting the part 2 is opened at one end of the first fixed seat 321 close to the side pressing block 314. A positioning bottom surface 3212 for fitting the bottom of the part 2 is arranged at the inner bottom of the first fixed seat 321; bumps 3141 and arc-shaped blocks 3142 for fitting the part 2 are respectively opened at the upper and lower ends of the side pressing block 314 on the side close to the first fixed seat 321; the positioning step 3211 and the bump 3141 cooperate to position the T-shaped structure at the top of the part 2, realizing stable clamping of the part 2.

[0043] The upper and lower clamping mechanism 4 includes a diagonal tension pressing component 41 and a bottom positioning component 42 arranged on the substrate 1. The bottom positioning component 42 is used to position the part 2 in cooperation with the first slot 21 and the second slot 22 of the part 2. The diagonal tension pressing component 41 presses the part 2 tightly on the bottom positioning component 42 through a diagonal tension structure.

[0044] The bottom positioning component 42 includes a second fixed seat 421, a first positioning pin 422 and a second positioning pin 423. The second fixed seat 421 is fixedly installed on the substrate 1. At the upper end of the second fixed seat 421, a first positioning pin 422 inserted into the first slot 21 of the part 2 and a second positioning pin 423 inserted into the second slot 22 of the part 2 are fixedly installed. The positioning of the part 2 is realized by the cooperation of the first positioning pin 422 and the second positioning pin 423, and the clamping effect on the part 2 is increased.

[0045] The diagonal tension and pressing component 41 includes a second pressing oil cylinder 411, a pressing plate 412, a connecting plate 413, a fixed block 414 and a downward pressing block 415. The second pressing oil cylinder 411 is fixedly installed on the substrate 1 and is located on one side of the second fixed seat 421. A fixed block 414 is fixedly installed at the upper end of the housing of the second fixed seat 421. One end of the pressing plate 412 is hinged to the output end of the second pressing oil cylinder 411, and a downward pressing block 415 for pressing down the part 2 is fixedly installed at the other end of the pressing plate 412. The two ends of the connecting plate 413 are respectively hinged to the middle of the pressing plate 412 and the fixed block 414. When the output end of the second pressing oil cylinder 411 extends, the end of the pressing plate 412 away from the second pressing oil cylinder 411 realizes a rotating and pressing-down effect through the cooperation of the connecting plate 413 and the fixed block 414, so that the downward pressing block 415 presses the part 2 tightly on the second fixed seat 421, realizing a clamping structure of one plane and two pins, with good clamping effect and high positioning accuracy.

[0046] The two ends of the downward pressing block 415 are provided with protruding circular blocks for increasing the pressing effect on the part 2.

[0047] The downward pressing block 415 can be opened by means of an oil circuit to reset the piston of the second pressing oil cylinder 411, realizing the release of the part 2.

[0048] Preferably, a strong pulling spring is arranged between the pressing plate 412 and the substrate 1, and the reset effect of the downward pressing block 415 is realized through the pulling back of the pulling spring.

[0049] 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 make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A multi-station spring displacement clamping and releasing fixture, comprising a substrate (1), characterized in that: A plurality of groups of side clamping mechanisms (3) for clamping and fixing a part (2) from the side to facilitate machining feed are evenly arranged on the left side of the substrate (1); The side clamping mechanism (3) includes a quick-release side pressing component (31) and a positioning component (32) arranged on the substrate (1). The positioning component (32) is used for positioning the part (2), and the quick-release side pressing component (31) is used to cooperate with the positioning component (32) to clamp the part (2) from the side, facilitating the feed and retraction of the tool when machining the slot hole one (21) and the slot hole two (22) of the part (2); A plurality of groups of upper and lower clamping mechanisms (4) for clamping the part (2) that has been preliminarily machined from above and below are evenly arranged on the right side of the substrate (1).

2. The multi-station spring displacement clamping and releasing fixture according to claim 1, wherein The positioning component (32) includes a first fixed seat (321) and a positioning block (322). The first fixed seat (321) and the positioning block (322) are fixedly installed on the substrate (1), and the first fixed seat (321) and the positioning block (322) are arranged in a fitting manner to form a corner positioning structure.

3. The multi-station spring displacement clamping and releasing fixture according to claim 2, wherein, The quick-release side pressing component (31) includes a first pressing oil cylinder (311), a neck-shaped column head (312), a T-shaped groove (313), and a side pressing block (314). The first pressing oil cylinder (311) is fixedly installed on the substrate (1) and is located on one side of the first fixed seat (321). The output end of the first pressing oil cylinder (311) is fixedly installed with a neck-shaped column head (312); the bottom of the side pressing block (314) is in sliding connection with the first fixed seat (321) in a fitting manner, and a T-shaped groove (313) for limiting sliding connection with the neck-shaped column head (312) is opened at one end of the side pressing block (314) close to the first pressing oil cylinder (311).

4. The multi-station spring displacement pressing and releasing fixture according to claim 3, characterized in that, A positioning step (3211) for fitting the part (2) is opened at one end of the first fixed seat (321) close to the side pressing block (314), and a positioning bottom surface (3212) that fits the bottom of the part (2) is provided at the inner bottom of the first fixed seat (321); bumps (3141) and arc-shaped blocks (3142) for fitting the part (2) are respectively opened at the upper and lower ends of the side pressing block (314) on the side close to the first fixed seat (321); the positioning step (3211) and the bump (3141) cooperate to realize the positioning of the T-shaped structure at the top of the part (2).

5. The multi-station spring displacement clamping and releasing fixture according to claim 4, wherein The upper and lower clamping mechanism (4) includes an inclined pulling and pressing component (41) and a bottom positioning component (42) arranged on the substrate (1). The bottom positioning component (42) is used to cooperate with the slot hole one (21) and the slot hole two (22) of the part (2) to position the part (2), and the inclined pulling and pressing component (41) tightly presses the part (2) on the bottom positioning component (42) through an inclined pulling structure.

6. The multi-station spring displacement clamping and releasing fixture according to claim 5, characterized in that, The bottom positioning component (42) includes a second fixed seat (421), a first positioning pin (422) and a second positioning pin (423). The second fixed seat (421) is fixedly installed on the substrate (1). At the upper end of the second fixed seat (421), a first positioning pin (422) inserted into the first slot (21) of the part (2) and a second positioning pin (423) inserted into the second slot (22) of the part (2) are fixedly installed.

7. The multi-station spring displacement pressing and releasing fixture according to claim 6, characterized in that, The diagonal tension and pressing component (41) includes a second pressing oil cylinder (411), a pressing plate (412), a connecting plate (413), a fixed block (414) and a downward pressing block (415). The second pressing oil cylinder (411) is fixedly installed on the substrate (1) and is located on one side of the second fixed seat (421). A fixed block (414) is fixedly installed at the upper end of the housing of the second fixed seat (421); one end of the pressing plate (412) is hinged to the output end of the second pressing oil cylinder (411), and a downward pressing block (415) for pressing down the part (2) is fixedly installed at the other end of the pressing plate (412); both ends of the connecting plate (413) are respectively hinged to the middle of the pressing plate (412) and the fixed block (414).

8. The multi-station spring displacement pressing and releasing fixture according to claim 7, characterized in that Both ends of the downward pressing block (415) are provided with protruding circular blocks for enhancing the pressing effect on the part (2).

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