Positioning clamp for piston machining

Abstract

The utility model belongs to the technical field of piston machining, and particularly relates to a piston machining positioning clamp which comprises a working table, two positioning grooves are formed in the top of the working table, a rotating disc is rotationally connected to the interior of each positioning groove, a positioning table is fixedly connected to the top of each rotating disc, a plurality of sliding grooves are formed in the top of each positioning table, and the sliding grooves are matched with the positioning grooves. A telescopic rod is fixedly connected to the inner wall of one end of each sliding groove, a positioning clamping block is fixedly connected to one end of each telescopic rod, and a piston body is arranged at the top of each positioning table. The piston main body is fixed to the top of the positioning table through attachment of the positioning clamping blocks and the piston main body, so that a worker can conveniently machine the outer wall of the piston main body, and rotation dislocation of the piston main body in the machining process is prevented through attachment of the auxiliary clamping blocks and the outer wall of the piston main body; and the clamping requirements of pistons of different shapes and sizes can be met, operation of workers is facilitated, and the use efficiency and practicability of the positioning clamp are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of piston processing, in particular to a piston processing positioning fixture. Background Art

[0002] During the processing of bicycle pistons, the produced pistons need to be processed. Before processing, the pistons need to be positioned by a fixture to improve the processing accuracy.

[0003] Most positioning fixtures are composed of a workbench, a clamping mechanism, and a driving mechanism. When in use, the piston to be processed needs to be placed on the workbench. The driving motor or hydraulic push rod in the driving mechanism is used to control the movement of the clamping mechanism to clamp and fix the piston, so that the staff can process the piston.

[0004] In the current existing technology, the traditional piston processing positioning fixture needs to consider the shape, size and processing requirements of the piston when manufacturing the positioning fixture. Different fixtures need to be replaced for different sizes and shapes. In addition, the clamping mechanism is mostly cumbersome, which is not convenient for staff to operate and is not convenient for clamping different pistons, affecting the efficiency and practicality of the positioning fixture.

[0005] Therefore, a piston machining positioning fixture is proposed to address the above problems. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned problems, a piston processing positioning fixture is proposed.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a piston processing positioning fixture of the utility model comprises a workbench, the top of the workbench is provided with two positioning grooves, the interior of each positioning groove is rotatably connected with a turntable, the top of each turntable is fixedly connected with a positioning platform, a plurality of slide grooves are provided on the top of each positioning platform, and the plurality of slide grooves are arranged in a ring array; the inner wall at one end of each slide groove is fixedly connected with a telescopic rod, one end of each telescopic rod is fixedly connected with a positioning clamping block, and the outer wall at one end of each positioning clamping block slides with the inside of the slide groove through the telescopic rod; a piston body is provided on the top of each positioning platform, the inner wall of one piston body is fitted and connected with one side of a plurality of positioning clamping blocks, the outer wall of another piston body is fitted and connected with an auxiliary clamping block, each auxiliary clamping block is sleeved on the outer side of the positioning clamping block, and the two piston bodies are fixed to the top of the positioning platform through the positioning clamping blocks.

[0008] Preferably, each positioning clamp is provided with rectangular grooves on both sides, the inner wall of the rectangular groove is provided with a card slot, each card slot is provided in the middle of the auxiliary clamp, the inner wall of the auxiliary clamp is engaged with the inner wall of the rectangular groove through the card slot, and the auxiliary clamp is connected to the outer wall of the positioning clamp through the card slot and the rectangular groove.

[0009] Preferably, a slide rod is fixedly connected to the interior of each slide groove, and an outer wall of each slide rod is slidably connected to the inner wall of the positioning clamp block.

[0010] Preferably, a positioning rod is rotatably connected to the interior of each positioning groove, one end of the positioning rod is fixedly connected to one side of the turntable, and the outer wall of each positioning rod is fixedly connected to a gear ring.

[0011] Preferably, a driving motor is fixedly connected to the interior of each positioning groove, a gear is fixedly connected to one end of the output shaft of each driving motor, and one side of each gear is meshedly connected to one side of the gear ring.

[0012] Preferably, a limiting ring is fixedly connected inside the positioning groove, a ball bearing is fixedly connected to one side of each limiting ring, the limiting ring of each ball bearing rotates inside the positioning groove, and the other side of each ball bearing is fixedly connected to one side of the bottom of the turntable.

[0013] Beneficial effects of the utility model:

[0014] The utility model provides a piston processing positioning fixture, which is fixed on the top of a positioning platform by fitting a positioning clamp block with the inner wall of a piston main body, so that a worker can process the outer wall of the piston main body, and then use a telescopic rod to simultaneously push the positioning clamp block to fit the outer wall of the piston main body, and fix it on the top of the positioning platform, so that the worker can process the inside of the piston main body. By installing an auxiliary clamp block on the outer side of the positioning clamp block and fitting the auxiliary clamp block with the outer wall of the piston main body, the piston main body is prevented from rotating and misaligning during the processing. The above method can meet the clamping requirements of pistons of different shapes and sizes, facilitate operation by workers, and improve the use efficiency and practicality of the positioning fixture.

[0015] The utility model provides a piston processing positioning fixture, which drives the gear to rotate through the output shaft of the driving motor, utilizes the meshing of the gear and the gear ring to drive the positioning rod to rotate, and then utilizes the connection between the other end of the positioning rod and the slide groove so that the slide groove can rotate inside the positioning groove, so that the processing angle of the piston body can be adjusted, and the auxiliary clamping block is pulled to make the clamping groove disengage from the rectangular groove, so that the auxiliary clamping block can be easily removed, and then the new auxiliary clamping block is moved to insert the clamping groove into the outer side of the rectangular groove, so that the auxiliary clamping block is installed on the outer side of the positioning clamping block, so as to prevent the auxiliary clamping block from being misplaced when in use, facilitate the staff to quickly replace the auxiliary clamping block, and improve the use efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the workbench in the utility model;

[0019] Figure 3 It is a cross-sectional view of the workbench in the utility model;

[0020] Figure 4 It is a three-dimensional diagram of the positioning platform in the utility model;

[0021] Figure 5 It is a cross-sectional view of the positioning platform in the utility model;

[0022] Legend:

[0023] 1. Workbench; 2. Positioning groove; 3. Turntable; 4. Positioning platform; 5. Slide groove; 6. Telescopic rod; 7. Positioning clamp; 71. Rectangular groove; 8. Piston body; 9. Auxiliary clamp; 91. Slot; 10. Slide rod; 11. Positioning rod; 12. Gear ring; 13. Gear; 14. Driving motor; 15. Limiting ring; 16. Ball bearing. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Specific examples are given below.

[0026] See also Figure 1 - Figure 5The utility model provides a piston processing positioning fixture, including a workbench 1, the top of the workbench 1 is provided with two positioning grooves 2, and the interior of each positioning groove 2 is rotatably connected to a turntable 3. The top of each turntable 3 is fixedly connected to a positioning platform 4, and the top of each positioning platform 4 is provided with a plurality of slide grooves 5, and the plurality of slide grooves 5 are arranged in a ring array. The inner wall at one end of each slide groove 5 is fixedly connected to a telescopic rod 6, and one end of each telescopic rod 6 is fixedly connected to a positioning clamp 7, and the outer wall at one end of each positioning clamp 7 slides inside the slide groove 5 through the telescopic rod 6. The interior of each slide groove 5 is fixedly connected to a sliding rod 10, and the outer wall of each sliding rod 10 is slidably connected to the inner wall of the positioning clamp 7. A piston body 8 is provided on the top of each positioning platform 4, and the inner wall of one piston body 8 is fitted and connected to one side of multiple positioning clamps 7; the outer wall of the other piston body 8 is fitted and connected to an auxiliary clamp 9, and each auxiliary clamp 9 is sleeved on the outer side of the positioning clamp 7. The two piston bodies 8 are fixed to the top of the positioning platform 4 through the positioning clamp 7.

[0027] During operation, when the outer wall of the piston body 8 needs to be processed, the piston body 8 to be processed is placed on the outside of the multiple positioning clamps 7 of the positioning platform 4. Then the contraction of the multiple telescopic rods 6 can simultaneously push the positioning clamps 7 to slide inside the slide 5, and the slide rod 10 is used to prevent the positioning clamps 7 from being misplaced during the movement. The positioning clamps 7 are stably fitted with the inner wall of the piston body 8, and are fixed on the top of the positioning platform 4, so that the staff can process the outer wall of the piston body 8. When the inside of the piston body 8 needs to be processed, the piston body 8 is placed between the multiple positioning clamps 7, and the telescopic rods 6 are used to simultaneously push the positioning clamps 7 to fit the outer wall of the piston body 8, and fix it on the top of the positioning platform 4, so that the staff can process the inside of the piston body 8. When the size of the piston body 8 changes, the auxiliary clamps 9 can be installed on the outside of the positioning clamps 7, and the fitting of the auxiliary clamps 9 with the outer wall of the piston body 8 can prevent the piston body 8 from rotating and misaligning during the processing. By using the fixed connection between the positioning platform 4 and the slide groove 5 and the rotation of the slide groove 5 inside the positioning groove 2, the processing angle of the piston body 8 can be adjusted. The above method can meet the clamping requirements of pistons of different shapes and sizes, and is convenient for replacing different clamps, which is convenient for staff to operate and improves the use efficiency and practicality of the positioning clamp.

[0028] Further, such as Figure 3As shown, a positioning rod 11 is rotatably connected inside each positioning groove 2, one end of the positioning rod 11 is fixedly connected to one side of the turntable 3, and a gear ring 12 is fixedly connected to the outer wall of each positioning rod 11. A driving motor 14 is fixedly connected inside each positioning groove 2, and a gear 13 is fixedly connected to one end of the output shaft of each driving motor 14, and one side of each gear 13 is meshed and connected with one side of the gear ring 12. A limiting ring 15 is fixedly connected inside the positioning groove 2, and a ball bearing 16 is fixedly connected to one side of each limiting ring 15. Each ball bearing 16 rotates inside the positioning groove 2 through the limiting ring 15, and the other side of each ball bearing 16 is fixedly connected to one side of the bottom of the turntable 3.

[0029] During operation, the drive motor 14 inside the positioning groove 2 is started, and the output shaft of the drive motor 14 is used to drive the gear 13 to rotate, and then the engagement between the gear 13 and the gear ring 12 is used to drive the positioning rod 11 to rotate. The connection between one end of the positioning rod 11 and the inner wall of the positioning groove 2 is used to prevent the positioning rod 11 from being misaligned during rotation, and the connection between the other end of the positioning rod 11 and the slide 5 is used to allow the slide 5 to rotate inside the positioning groove 2, so that the processing angle of the piston body 8 can be adjusted. The limit ring 15 is used to ensure the stability of the ball bearing 16, and the connection between the ball bearing 16 and the slide 5 can improve the rotation efficiency of the slide 5, reduce the friction effect between the slide 5 and the inner wall of the positioning groove 2, and improve the service life and practicality of the structure.

[0030] Further, such as Figure 4 and Figure 5 As shown, rectangular grooves 71 are provided on both sides of each positioning clamp block 7, and the inner wall of the rectangular groove 71 is sleeved with a clamping groove 91, and each clamping groove 91 is provided in the middle of the auxiliary clamp block 9. The inner wall of the auxiliary clamp block 9 is engaged with the inner wall of the rectangular groove 71 through the clamping groove 91, and the auxiliary clamp block 9 is connected to the outer wall of the positioning clamp block 7 through the clamping groove 91 and the rectangular groove 71.

[0031] During operation, when the size and shape of the piston body 8 changes, the auxiliary clamp block 9 of the same shape and size can be installed on the outside of the positioning clamp block 7. When replacing the auxiliary clamp block 9, the auxiliary clamp block 9 can be easily removed by pulling the auxiliary clamp block 9 to disengage the slot 91 from the rectangular slot 71. Then move the new auxiliary clamp block 9 to insert the slot 91 on the outside of the rectangular slot 71, so that the auxiliary clamp block 9 is installed on the outside of the positioning clamp block 7 to prevent the auxiliary clamp block 9 from being misplaced during use. The clamping requirements of pistons of different shapes and sizes can be met, which is convenient for the staff to quickly replace the auxiliary clamp block 9 and improve the use efficiency of the equipment.

[0032] Working principle: When the outer wall of the piston body 8 needs to be processed, the piston body 8 to be processed is placed on the outside of the multiple positioning clamps 7 of the positioning platform 4, and then the contraction of the multiple telescopic rods 6 can simultaneously push the positioning clamps 7 to slide inside the slide 5, and the slide bar 10 is used to prevent the positioning clamps 7 from being misplaced during the movement, so that the positioning clamps 7 are stably fitted with the inner wall of the piston body 8, and are fixed on the top of the positioning platform 4, so that the staff can process the outer wall of the piston body 8. When the inside of the piston body 8 needs to be processed, the piston body 8 is placed between the multiple positioning clamps 7, and then the telescopic rods 6 are used to simultaneously push the positioning clamps 7 to fit the outer wall of the piston body 8, and fix it on the top of the positioning platform 4, so that the staff can process the inside of the piston body 8. When the size and shape of the piston body 8 changes, the auxiliary clamp 9 with the same shape and size can be installed on the outside of the positioning clamp 7. When replacing the auxiliary clamp 9, the auxiliary clamp 9 can be easily removed by pulling the auxiliary clamp 9 to make the slot 91 detach from the rectangular slot 71. Then move the new auxiliary clamp 9 to insert the slot 91 into the outside of the rectangular slot 71, so that the auxiliary clamp 9 is installed on the outside of the positioning clamp 7. By starting the driving motor 14 inside the positioning slot 2, the output shaft of the driving motor 14 drives the gear 13 to rotate, and then the gear 13 is engaged with the gear ring 12 to drive the positioning rod 11 to rotate. By connecting one end of the positioning rod 11 with the inner wall of the positioning slot 2, and by connecting the other end of the positioning rod 11 with the slide 5, the slide 5 can be rotated inside the positioning slot 2, and the processing angle of the piston body 8 can be adjusted.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A piston machining positioning fixture, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with two positioning grooves (2), each positioning groove (2) is rotatably connected to a turntable (3), the top of each turntable (3) is fixedly connected to a positioning platform (4), the top of each positioning platform (4) is provided with a plurality of slide grooves (5), and the plurality of slide grooves (5) are arranged in a circular array; the inner wall of one end of each slide groove (5) is fixedly connected to a telescopic rod (6), one end of each telescopic rod (6) is fixedly connected to a positioning clamping block (7), and each positioning clamping block (7) is fixedly connected to the inner wall of each slide groove (5). The outer wall of one end of the block (7) slides inside the slide groove (5) via a telescopic rod (6); a piston body (8) is arranged on the top of each positioning platform (4); the inner wall of one piston body (8) is fitted and connected to one side of a plurality of positioning clamping blocks (7); the outer wall of another piston body (8) is fitted and connected to an auxiliary clamping block (9); each auxiliary clamping block (9) is sleeved on the outer side of the positioning clamping block (7); and the two piston bodies (8) are fixed to the top of the positioning platform (4) via the positioning clamping blocks (7).

2. A piston machining positioning fixture according to claim 1, characterized in that: Rectangular grooves (71) are provided on both sides of each positioning clamping block (7), and the inner wall of the rectangular groove (71) is sleeved with a clamping groove (91). Each clamping groove (91) is provided in the middle of the auxiliary clamping block (9), and the inner wall of the auxiliary clamping block (9) is clamped with the inner wall of the rectangular groove (71) through the clamping groove (91), and the auxiliary clamping block (9) is fitted and connected with the outer wall of the positioning clamping block (7) through the clamping groove (91) and the rectangular groove (71).

3. The piston processing positioning fixture according to claim 1, characterized in that: A slide rod (10) is fixedly connected to the interior of each slide groove (5), and an outer wall of each slide rod (10) is slidably connected to the inner wall of the positioning clamping block (7).

4. A piston machining positioning fixture according to claim 3, characterized in that: A positioning rod (11) is rotatably connected inside each positioning groove (2), one end of the positioning rod (11) is fixedly connected to one side of the rotating disk (3), and the outer wall of each positioning rod (11) is fixedly connected to a gear ring (12).

5. The piston machining positioning fixture according to claim 4, characterized in that: A driving motor (14) is fixedly connected inside each positioning groove (2), one end of the output shaft of each driving motor (14) is fixedly connected to a gear (13), and one side of each gear (13) is meshedly connected to one side of the gear ring (12).

6. A piston machining positioning fixture according to claim 5, characterized in that: A limiting ring (15) is fixedly connected inside the positioning groove (2), one side of each limiting ring (15) is fixedly connected to a ball bearing (16), each ball bearing (16) rotates inside the positioning groove (2) via the limiting ring (15), and the other side of each ball bearing (16) is fixedly connected to one side of the bottom of the turntable (3).

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