Positioning device convenient to disassemble and assemble and used for part machining

Abstract

The utility model relates to the technical field of part processing, and discloses a part processing positioning device convenient to disassemble and assemble, which comprises a base, the front end of the base is rotatably connected with a rotating plate, and the inner wall of the base is provided with a disassembling mechanism; the dismounting mechanism comprises a fixing plate, the bottom end of the fixing plate is fixedly connected to the inner wall of the base, the inner wall of the fixing plate is rotatably connected with a bidirectional threaded rod, the rear end of the bidirectional threaded rod is fixedly connected with a rotating plate, and the rear end of the rotating plate is rotatably connected with a connecting rod. The outer wall of the bidirectional threaded rod is in threaded connection with a connecting plate, and the top end of the connecting plate is fixedly connected with a clamping plate. According to the utility model, when the three-jaw chuck is disassembled, the two groups of clamping plates are opened by rotating the two-way threaded rod so as to finish the disassembly, and the clamping plates move inwards by reversely rotating the two-way threaded rod so as to achieve a fixing effect, so that the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of parts processing, in particular to a positioning device for parts processing which is convenient for disassembly and assembly. Background Technique

[0002] When processing parts, common positioning jigs can be selected according to the specific shape, size, processing requirements and precision requirements of the parts, and there are various positioning jigs available, including bakelite jig positioning jigs, three-jaw chucks and their zero-point positioners, etc.

[0003] When using a three-jaw chuck for positioning and clamping, generally place the parts to be processed in the middle of the three-jaw chuck. When using a wrench to rotate the small bevel gear through the square hole, the dish-shaped gear rotates, and the plane thread on the back drives the three jaws to move closer to or away from the center at the same time to clamp workpieces with different diameters.

[0004] After the three-jaw chuck is used for a long time, wear will occur between its base jaws and the grooves, resulting in a decrease in positioning accuracy. And this kind of wear accumulates gradually, and the wear degree will be aggravated after long-term use. When the three-jaw chuck is damaged to a certain extent or the accuracy is not precise due to long-term use, at this time, it is necessary to manually disassemble the three-jaw chuck, select the corresponding tools and then repeatedly rotate the bolts to achieve the disassembly purpose. This operation is relatively troublesome and time-consuming and laborious. When there are more bolts, the labor cost will also increase at this time. For this reason, a positioning device for parts processing which is convenient for disassembly and assembly is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a positioning device for parts processing which is convenient for disassembly and assembly, aiming to improve the problem that it is relatively troublesome to repeatedly rotate the bolts when disassembling the three-jaw chuck in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a positioning device for parts processing which is convenient for disassembly and assembly, including a base, a rotating plate is rotatably connected to the front end of the base, and a disassembly mechanism is arranged on the inner wall of the base;

[0007] The disassembly mechanism includes a fixing plate, the bottom end of the fixing plate is fixedly connected to the inner wall of the base, a bidirectional threaded rod is rotatably connected to the inner wall of the fixing plate, a rotating plate is fixedly connected to the rear end of the bidirectional threaded rod, a connecting rod is rotatably connected to the rear end of the rotating plate, a connecting plate is threadedly connected to the outer wall of the bidirectional threaded rod, a clamping plate is fixedly connected to the top end of the connecting plate, a three-jaw chuck is in contact with the top end of the base, a connecting block is fixedly connected to the outer wall of the three-jaw chuck, and a labor-saving mechanism is arranged in the inner wall of the bidirectional threaded rod.

[0008] As a further description of the above technical solution:

[0009] A chute is provided at the top of the base, and the outer wall of the connecting plate is slidably connected to the inner wall of the chute.

[0010] As a further description of the above technical solution:

[0011] A baffle is fixedly connected to the outer wall of the clamping plate, and the length of the baffle is the same as the length of the chute.

[0012] As a further description of the above technical solution:

[0013] A positioning pin is fixedly connected to the center of the top of the base, and the bottom end of the three-jaw chuck is inserted on the outer wall of the positioning pin.

[0014] As a further description of the above technical solution:

[0015] The inner wall of the clamping plate is inserted on the outer wall of the connecting block.

[0016] As a further description of the above technical solution:

[0017] The labor-saving mechanism includes a moving column, the outer wall of the moving column is slidably connected to the inner wall of the bidirectional threaded rod, a rotating column is fixedly connected to the front end of the moving column, a group of support blocks are fixedly connected to both the upper and lower ends of the rotating column, a plug pin is elastically connected to the inner wall of the support block through a connecting spring, and a movable column is slidably connected to the inner wall of the rotating column.

[0018] As a further description of the above technical solution:

[0019] One end of the connecting spring is fixedly connected to the inner wall of the support block, the other end of the connecting spring is fixedly connected to the outer wall of the plug pin, and the outer wall of the plug pin is slidably connected to the inner wall of the support block.

[0020] As a further description of the above technical solution:

[0021] A plug hole is provided at the front end of the movable column, and the outer wall of the plug pin is inserted into the inner wall of the plug hole.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, through the mutual cooperation between the base and its disassembly mechanism and other structures, when disassembling the three-jaw chuck, relevant personnel can turn the bidirectional threaded rod to open the two clamping plates to complete the disassembly, and reverse-turn the bidirectional threaded rod to make the clamping plates move inward to achieve the fixing effect, and the operation is simple and convenient.

[0024] 2. In the present utility model, through the mutual cooperation among structures such as the labor-saving mechanism, when the bidirectional threaded rod is rotated, the movable column can be pulled towards both ends to make the rotating column longer, and then rotated to achieve the labor-saving effect. Moreover, when the rotating column is not in use, the rotating column can be pushed to the inner wall of the base, and then the rotating plate can be closed to achieve a certain dust-proof protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. is an overall three-dimensional schematic diagram of a positioning device for parts processing that is convenient for disassembly and assembly proposed by the present utility model;

[0026] Figure 2 FIG. is a schematic internal view of the base section of a positioning device for parts processing that is convenient for disassembly and assembly proposed by the present utility model;

[0027] Figure 3 FIG. is a schematic diagram of the splitting of the support block and its rotating column of a positioning device for parts processing that is convenient for disassembly and assembly proposed by the present utility model;

[0028] Figure 4 FIG. is an overall three-dimensional schematic diagram of the connecting rod of a positioning device for parts processing that is convenient for disassembly and assembly proposed by the present utility model;

[0029] Figure 5 FIG. is a positioning device for parts processing that is convenient for disassembly and assembly proposed by the present utility model Figure 3 magnified schematic diagram at position A.

[0030] LEGEND DESCRIPTION:

[0031] 1. Base; 2. Rotating plate; 3. Three-jaw chuck; 4. Disassembly mechanism; 401. Fixed plate; 402. Bidirectional threaded rod; 403. Connecting plate; 404. Clamping plate; 405. Connecting block; 406. Positioning pin; 407. Baffle; 408. Connecting rod; 409. Rotating plate; 5. Labor-saving mechanism; 501. Rotating column; 502. Moving column; 503. Connecting spring; 504. Plug pin; 505. Support block; 506. Movable column; 507. Insertion hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. 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.

[0033] Refer to Figure 1 , Figure 2 and Figure 4, an embodiment provided by the present utility model: a positioning device for component processing that is convenient for disassembly and assembly, including a base 1. The front end of the base 1 is rotatably connected to a rotating plate 2. The top end of the rotating plate 2 is provided with a T-shaped block, and a T-shaped groove is opened at the front end of the base 1. The size of the T-shaped block is smaller than that of the T-shaped groove. A disassembly mechanism 4 is arranged on the inner wall of the base 1; the disassembly mechanism 4 can achieve the purpose of quick installation and disassembly. The disassembly mechanism 4 includes a fixing plate 401. The bottom end of the fixing plate 401 is fixedly connected to the inner wall of the base 1. There are four groups of fixing plates 401, and the four groups of fixing plates 401 play a supporting role. A bidirectional threaded rod 402 is rotatably connected to the inner wall of the fixing plate 401. The rear end of the bidirectional threaded rod 402 is fixedly connected to a rotating plate 409. By rotating the bidirectional threaded rod 402, the rotating plate 409 at the rear end rotates. A connecting rod 408 is rotatably connected to the rear end of the rotating plate 409. Through the arrangement of the connecting rod 408, when one group of bidirectional threaded rods 402 rotates, the other group of bidirectional threaded rods 402 can be driven to rotate. A connecting plate 403 is threadedly connected to the outer wall of the bidirectional threaded rod 402. A clamping plate 404 is fixedly connected to the top end of the connecting plate 403. By rotating the bidirectional threaded rod 402, the two connecting plates 403 move closer or spread apart. A three-jaw chuck 3 is in contact with the top end of the base 1. Through the contact with the top end of the base 1, a supporting force can be provided for the three-jaw chuck 3. A connecting block 405 is fixedly connected to the outer wall of the three-jaw chuck 3. The connecting block 405 is arranged in a circular ring shape. A labor-saving mechanism 5 is arranged on the inner wall of the bidirectional threaded rod 402.

[0034] Referring to Figures 2 - 4 , a chute is opened at the top end of the base 1. The outer wall of the connecting plate 403 is slidably connected to the inner wall of the chute. The chute can provide a guiding effect for the movement of the connecting plate 403. A baffle 407 is fixedly connected to the outer wall of the clamping plate 404. The length of the baffle 407 is the same as that of the chute. Through the arrangement of the baffle 407, after the three-jaw chuck 3 is installed, the baffle 407 can prevent dust from falling into the inner wall of the chute. A positioning pin 406 is fixedly connected to the center of the top end of the base 1. The bottom end of the three-jaw chuck 3 is inserted on the outer wall of the positioning pin 406. The positioning pin 406 plays a positioning role. The inner wall of the clamping plate 404 is inserted on the outer wall of the connecting block 405. When the two are inserted, the installation of the three-jaw chuck 3 is completed.

[0035] Referring to Figure 3 and Figure 5, the labor-saving mechanism 5 includes a moving column 502. The outer wall of the moving column 502 is slidably connected to the inner wall of the bidirectional threaded rod 402. The moving column 502 rotates in the same direction as the bidirectional threaded rod 402. Their sliding enables the rotating column 501 to move a certain distance, facilitating rotation. The front end of the moving column 502 is fixedly connected to a rotating column 501. The rotation of the rotating column 501 drives the bidirectional threaded rod 402 to move. A set of support blocks 505 are fixedly connected to both the upper and lower ends of the rotating column 501. The inner wall of the support block 505 is elastically connected to a latch 504 through a connecting spring 503. The latch 504 penetrates and is slidably connected to the inner wall of the support block 505. The through setting facilitates manual release of the limit of the latch 504. An active column 506 is slidably connected to the inner wall of the rotating column 501. One set of rotating columns 501 corresponds to two sets of active columns 506.

[0036] Refer to Figure 5 , one end of the connecting spring 503 is fixedly connected to the inner wall of the support block 505, and the other end of the connecting spring 503 is fixedly connected to the outer wall of the latch 504. The outer wall of the latch 504 is slidably connected to the inner wall of the support block 505. The elasticity of the connecting spring 503 enables the latch 504 to have the functions of reset and limit. A plug hole 507 is opened at the front end of the active column 506. The outer wall of the latch 504 is inserted into the inner wall of the plug hole 507. The end of the latch 504 close to the plug hole 507 is provided with an inclined surface, with the inclined surface facing downwards. The inclined surface is provided to facilitate the pulling of the active column 506. The rotation becomes more labor-saving through the opening of the active column 506.

[0037] Working principle: When relevant personnel need to disassemble and replace the three-jaw chuck 3, first rotate the rotating plate 2 downwards, and then pull the two sets of active columns 506 towards the upper and lower ends. When the active columns 506 move, they will squeeze the inclined surfaces of the corresponding latches 504. Thus, when the two sets of active columns 506 are pulled to the corresponding positions, then make the moving column 502 move horizontally, and then rotation can be carried out.

[0038] Both hands hold the two sets of movable columns 506 and rotate them to drive a set of bidirectional threaded rods 402 to rotate. When a set of bidirectional threaded rods 402 rotates, it will drive the rotating plate 409 at the rear end to rotate, thereby causing the connecting rod 408 to move. When the connecting rod 408 moves, it will drive another set of rotating plates 409 to rotate, so that another set of bidirectional threaded rods 402 will also rotate. When the bidirectional threaded rods 402 rotate, they will drive the two sets of connecting plates 403 to open towards both ends, thereby causing the two sets of clamping plates 404 to open towards both ends, so as to release the insertion of the clamping plates 404 and the connecting block 405. Then, the three-jaw chuck 3 can be moved upward for disassembly operation. After disassembly, the other three-jaw chuck 3 is inserted with the positioning pin 406 to complete positioning, and then the bidirectional threaded rod 402 is rotated in the reverse direction to achieve the fixing effect. The operation is simple and convenient. After use, the limit is released by moving the pin 504, and then the movable column 506 can be received in the inner wall of the rotating column 501. Then, the moving column 502 is pushed to contract it, and then the rotating plate 2 can be turned back.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A positioning device for parts processing that is easy to disassemble and assemble, comprising a base (1), characterized in that: The front end of the base (1) is rotatably connected to a rotating plate (2), and the inner wall of the base (1) is provided with a disassembly mechanism (4); The disassembly mechanism (4) comprises a fixed plate (401), the bottom end of the fixed plate (401) is fixedly connected to the inner wall of the base (1), the inner wall of the fixed plate (401) is rotatably connected to a bidirectional threaded rod (402), the rear end of the bidirectional threaded rod (402) is fixedly connected to a rotating plate (409), the rear end of the rotating plate (409) is rotatably connected to a connecting rod (408), the outer wall of the bidirectional threaded rod (402) is threadedly connected to a connecting plate (403), the top end of the connecting plate (403) is fixedly connected to a clamping plate (404), the top end of the base (1) contacts a three-jaw chuck (3), the outer wall of the three-jaw chuck (3) is fixedly connected to a connecting block (405), and the inner wall of the bidirectional threaded rod (402) is provided with a labor-saving mechanism (5).

2. A positioning device for parts processing that is easy to disassemble and assemble according to claim 1, characterized in that: A sliding groove is provided at the top of the base (1), and the outer wall of the connecting plate (403) is slidably connected to the inner wall of the sliding groove.

3. The positioning device for parts processing that is easy to disassemble and assemble according to claim 1 is characterized in that: The outer wall of the clamping plate (404) is fixedly connected with a baffle (407), and the length of the baffle (407) is consistent with the length of the slide groove.

4. The positioning device for parts processing that is easy to disassemble and assemble according to claim 1 is characterized in that: A positioning pin (406) is fixedly connected at the center of the top end of the base (1), and the bottom end of the three-jaw chuck (3) is inserted into the outer wall of the positioning pin (406).

5. The positioning device for parts processing that is easy to disassemble and assemble according to claim 1 is characterized in that: The inner wall of the clamping plate (404) is plugged into the outer wall of the connecting block (405).

6. The positioning device for parts processing that is easy to disassemble and assemble according to claim 1, characterized in that: The labor-saving mechanism (5) comprises a movable column (502), the outer wall of which is slidably connected to the inner wall of the bidirectional threaded rod (402), the front end of which is fixedly connected to a rotating column (501), the upper and lower ends of which are fixedly connected to a group of supporting blocks (505), the inner wall of which is elastically connected to a latch (504) via a connecting spring (503), and the inner wall of which is slidably connected to a movable column (506).

7. A positioning device for parts processing that is easy to disassemble and assemble according to claim 6, characterized in that: One end of the connecting spring (503) is fixedly connected to the inner wall of the supporting block (505), and the other end of the connecting spring (503) is fixedly connected to the outer wall of the latch (504), and the outer wall of the latch (504) is slidably connected to the inner wall of the supporting block (505).

8. The positioning device for parts processing that is easy to disassemble and assemble according to claim 6, characterized in that: The front end of the movable column (506) is provided with an inserting hole (507), and the outer wall of the latch (504) is inserted into the inner wall of the inserting hole (507).

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