Automatic clamping jig for precision parts

Abstract

The automatic clamping jig comprises a supporting frame, one end of an air inlet pipe is provided with an air guide groove in a communicated mode, a sealing block is installed on the inner wall of the air guide groove in an inserted mode, one end of the sealing block is fixedly connected with a telescopic screw rod, the telescopic screw rod and one end of the air guide groove are installed in a spiral inserted mode, and the other end of the air guide groove is fixedly connected with the supporting frame. An air inlet is formed in one side of the air guide groove in a communicating mode, a rotating rod is installed on one side of the upper end of the supporting plate, and an upper clamp is rotationally installed at the upper end of the rotating rod. According to the automatic clamping jig for the precise part, air can be blown to the sliding block through the high-pressure air spraying opening, so that the first clamp and the second clamp are driven to conduct pneumatic clamping, automatic rebounding can be conducted through the supporting spring, after air guiding, the telescopic screw rod can be driven to spirally stretch out and draw back through the sealing block, the air inlet is sealed, the clamping action is maintained, and the clamping efficiency is improved. And in addition, the first clamp and the second clamp can be rapidly inserted, assembled and disassembled through the splicing insertion block, and rapid adaptation, replacement and use are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of precision parts clamping fixtures, in particular to an automatic precision parts clamping fixture. Background Art

[0002] Processing jigs are a type of precision processing device that is currently widely used. This is because many small workpieces cannot be controlled by the operator themselves during processing and must be fixed by jigs for processing.

[0003] The existing CN109955093A is a precision alloy shell automatic positioning and clamping processing fixture. It can not only support the workpiece to be processed by adding limit blocks and connecting rods, making it easy to use, but also limit the position of the workpiece to be processed, play a role in positioning the workpiece, and improve the convenience of use and processing efficiency. It has a simple structure and is easy to implement. However, there are some shortcomings. The existing equipment has poor clamping flexibility, and it is inconvenient to replace parts and use. Therefore, an automatic clamping fixture for precision parts is needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic clamping fixture for precision parts, so as to solve the problems mentioned in the above background technology that the automatic positioning and clamping fixture for precision alloy shells has poor clamping flexibility, is inconvenient to replace parts, and is inconvenient to use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic clamping fixture for precision parts, comprising a support frame, the upper end of the support frame is fixedly connected to a support plate, and one side of the upper end of the support plate is fixedly connected to a limited mounting groove, telescopic grooves are provided on both sides of the inner wall of the support frame, and one side of the inner wall of the telescopic groove is fixedly connected to a support spring, one end of the support spring is fixedly connected to a slider, and a splicing block is inserted and installed on the upper end of the slider, the upper ends of the splicing block are respectively fixedly connected to a second clamp and a fixing plate, and the second clamp is inlaid and installed on the inner wall of the limiting mounting groove, the upper end of the limiting mounting groove is covered and installed with a cover plate, the upper end of the fixing plate is installed with a first clamp, and the upper edge of the first clamp is inserted and installed with a fixing bolt, the fixing bolt is inserted and installed with the upper end of the fixing plate, and the first clamp A threaded mounting groove is provided on the upper end of the tool, and a threaded mounting block is inserted and installed on the inner wall of the threaded mounting groove, a positioning plug rod is fixedly connected to the upper end of the threaded mounting block, and the outer wall of the positioning plug rod is sleeved and installed with a precision part body, a positioning slot is provided on the upper edge of the precision part body, a high-pressure jet port is installed on one side of the inner wall of the slider, and an air intake pipe is connected and installed on one side of the high-pressure jet port, one end of the air intake pipe is connected and installed with an air guide groove, and a closing block is inserted and installed on the inner wall of the air guide groove, one end of the closing block is fixedly connected with a telescopic screw, and the telescopic screw is spirally inserted and installed with one end of the air guide groove, and one side of the air guide groove is connected and installed with an air inlet, a rotating rod is installed on one side of the upper end of the support plate, and an upper clamp is rotatably installed on the upper end of the rotating rod, and a locking screw is inserted and installed at the center position of the upper end of the rotating rod.

[0006] Preferably, the precision component body is installed in a positioning insertion manner with the first fixture in a positioning slot through a positioning rod, and the positioning rod is installed in a spiral splicing manner with the first fixture in a threaded mounting groove through a threaded mounting block.

[0007] Preferably, the first clamp and the second clamp are installed in a sliding manner and clamped with the precision component body in the telescopic groove via a slider, and the slider is elastically telescopically connected to the telescopic groove via a supporting spring.

[0008] Preferably, the upper clamp is rotatably connected to the support plate via a rotating rod, and the upper clamp is spirally lifted and lowered connected to the rotating rod via a locking screw.

[0009] Preferably, the second clamp and the fixing plate are installed by means of a splicing plug-in block and are positioned and plug-in-fitted.

[0010] Preferably, the high-pressure jet port is pneumatically connected to the slider, and the high-pressure jet port is communicated with the air inlet through an air inlet pipe, and the closing block is spirally opened and closed connected to the air inlet through a telescopic screw.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the automatic clamping fixture for precision parts can blow air to the slider through a high-pressure jet port, thereby driving the first clamp and the second clamp to perform pneumatic clamping, and can automatically rebound through a support spring, and after the air is guided, the telescopic screw can be driven to spirally extend and retract through the closing block to seal the air inlet, so as to maintain the clamping action and avoid continuous air supply, and the first clamp and the second clamp can be quickly plugged in and disassembled by a splicing plug-in block, which is convenient for quick adaptation and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a three-dimensional diagram of an automatic clamping fixture for precision parts of the utility model;

[0013] Figure 2 This is a top view of an automatic clamping fixture for precision parts of the utility model;

[0014] Figure 3 This is a side cross-sectional view of an automatic clamping fixture for precision parts of the utility model;

[0015] Figure 4 This utility model is a kind of automatic clamping fixture for precision parts Figure 3 Enlarged view of point A in the middle;

[0016] Figure 5 This utility model is a kind of automatic clamping fixture for precision parts Figure 3 Enlarged view of point B in the middle;

[0017] Figure 6 This utility model is a kind of automatic clamping fixture for precision parts Figure 3 Enlarged view of center C.

[0018] In the figure: 1. support frame, 2. limit mounting groove, 3. support plate, 4. cover plate, 5. precision part body, 6. first clamp, 7. rotating rod, 8. locking screw, 9. upper clamp, 10. second clamp, 11. positioning rod, 12. fixing plate, 13. support spring, 14. telescopic groove, 15. air inlet pipe, 16. air inlet, 17. slider, 18. splicing plug, 19. high-pressure jet port, 20. positioning slot, 21. threaded mounting block, 22. threaded mounting groove, 23. fixing bolt, 24. air guide groove, 25. closing block, 26. telescopic screw. DETAILED DESCRIPTION

[0019] 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 in 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.

[0020] See also Figure 1-6 The utility model provides a technical solution: an automatic clamping fixture for precision parts, including a support frame 1, a limit installation groove 2, a support plate 3, a cover plate 4, a precision part body 5, a first clamp 6, a rotating rod 7, a locking screw 8, an upper clamp 9, a second clamp 10, a positioning plug rod 11, a fixing plate 12, a support spring 13, a telescopic groove 14, an air intake pipe 15, an air intake port 16, a slider 17, a splicing plug block 18, a high-pressure jet port 19, a positioning slot 20, a threaded installation block 21, a threaded installation groove 22, a fixing bolt 23, an air guide groove 24, a closing block 25 and a telescopic screw 26. The upper end of the support frame 1 is fixedly connected to the support plate 3 , and one side of the upper end of the support plate 3 is fixedly connected to the limited mounting groove 2, telescopic grooves 14 are opened on both sides of the inner wall of the support frame 1, and one side of the inner wall of the telescopic groove 14 is fixedly connected to a support spring 13, one end of the support spring 13 is fixedly connected to a slider 17, and a splicing block 18 is installed on the upper end of the slider 17, and the upper ends of the splicing block 18 are respectively fixedly connected to the second clamp 10 and the fixed plate 12, and the second clamp 10 is inlaid and installed on the inner wall of the limited mounting groove 2, and the second clamp 10 and the fixed plate 12 are installed in a positioning plug-in manner through the splicing block 18, so that the second clamp 10 and the fixed plate 12 are convenient for quick insertion, disassembly, assembly and replacement, and are easy to adapt.

[0021] A cover plate 4 is installed on the upper end of the limiting installation groove 2, a first clamp 6 is installed on the upper end of the fixing plate 12, and a fixing bolt 23 is installed on the upper edge of the first clamp 6. The first clamp 6 and the second clamp 10 are installed in a sliding and clamping manner with the precision part body 5 in the telescopic groove 14 through a slider 17, and the slider 17 is elastically telescopically connected to the telescopic groove 14 through a supporting spring 13, so that the first clamp 6 and the second clamp 10 can be easily and stably automatically extended and retracted, and the clamping is flexible.

[0022] The fixing bolt 23 is inserted and installed with the upper end of the fixing plate 12, and a threaded installation groove 22 is opened at the upper end of the first clamp 6, and a threaded installation block 21 is inserted and installed on the inner wall of the threaded installation groove 22, and a positioning rod 11 is fixedly connected to the upper end of the threaded installation block 21, and the precision part main body 5 is installed on the outer wall of the positioning rod 11. The precision part main body 5 is inserted and installed with the first clamp 6 in a positioning slot 20 through the positioning rod 11, and the positioning rod 11 is spirally spliced ​​and installed with the first clamp 6 in the threaded installation groove 22 through the threaded installation block 21, so that the precision part main body 5 can be conveniently inserted and positioned, and the positioning rod 11 can be conveniently disassembled and adjusted spirally.

[0023] A positioning slot 20 is provided on the upper edge of the precision part body 5, a high-pressure jet port 19 is installed on one side of the inner wall of the slider 17, and an air inlet pipe 15 is installed on one side of the high-pressure jet port 19. The high-pressure jet port 19 is pneumatically connected to the slider 17, and the high-pressure jet port 19 is connected to the air inlet port 16 through the air inlet pipe 15. The closing block 25 is connected to the air inlet port 16 in a spiral opening and closing manner through a telescopic screw 26, so that the high-pressure jet port 19 can be pneumatically driven, and the air inlet port 16 can be closed by the closing block 25, which is convenient for clamping and locking to avoid continuous air supply.

[0024] One end of the air inlet pipe 15 is connected and installed with an air guide groove 24, and a closing block 25 is inserted and installed on the inner wall of the air guide groove 24, one end of the closing block 25 is fixedly connected with a telescopic screw 26, and the telescopic screw 26 is spirally inserted and installed with one end of the air guide groove 24, and one side of the air guide groove 24 is connected and installed with an air inlet 16, a rotating rod 7 is installed on one side of the upper end of the support plate 3, and an upper clamp 9 is rotatably installed on the upper end of the rotating rod 7, the upper clamp 9 is rotatably connected to the support plate 3 through the rotating rod 7, and the upper clamp 9 is spirally lifted and lowered with the rotating rod 7 through a locking screw 8, so that the upper clamp 9 is convenient for rotation and lifting and lowering adjustment, and auxiliary clamping, and a locking screw 8 is inserted and installed at the center position of the upper end of the rotating rod 7.

[0025] Working principle: When using the automatic clamping jig for precision parts, first assemble and install the device, then position and insert the precision part body 5 through the positioning plug rod 11 and the positioning slot 20, and then supply air to the high-pressure jet port 19 through the air inlet 16, the air guide groove 24 and the air inlet pipe 15, so that the first clamp 6 and the second clamp 10 are pneumatically moved through the slider 17 to clamp the precision part body 5. When continuous clamping is required, the closing block 25 can be spirally extended and retracted through the telescopic screw 26 to close the air inlet 16 and stop the continuous air supply. When the matching furniture needs to be replaced, the first clamp 6 and the second clamp 10 can be inserted and spliced ​​with the slider 17 through the splicing block 18. This is the use process of the automatic clamping jig for precision parts.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A precision parts automatic clamping fixture, comprising a support frame (1), wherein the upper end of the support frame (1) is fixedly connected to a support plate (3), and one side of the upper end of the support plate (3) is fixedly connected to a limited position mounting groove (2), characterized in that: The inner wall of the support frame (1) is provided with telescopic grooves (14) on both sides, and a support spring (13) is fixedly connected to one side of the inner wall of the telescopic groove (14); one end of the support spring (13) is fixedly connected to a slider (17), and a splicing plug-in block (18) is inserted and installed on the upper end of the slider (17); the upper end of the splicing plug-in block (18) is respectively fixedly connected to the second clamp (10) and the fixing plate (12), and the second clamp (10) is inlaid and installed on the inner wall of the limiting installation groove (2); the upper end of the limiting installation groove (2) is covered and installed with a cover plate (4); the upper end of the fixing plate (12) is provided with a first clamp (6), and the upper edge of the first clamp (6) is inserted and installed with a fixing bolt (23); the fixing bolt (23) is inserted and installed with the upper end of the fixing plate (12); the upper end of the first clamp (6) is provided with a threaded installation groove (22), and a threaded installation block (21) is inserted and installed on the inner wall of the threaded installation groove (22); the threaded installation block ( 21) is fixedly connected to the upper end thereof with a positioning rod (11), and the outer wall of the positioning rod (11) is fitted with a precision component body (5), the upper edge of the precision component body (5) is provided with a positioning slot (20), one side of the inner wall of the slider (17) is fitted with a high-pressure jet port (19), and one side of the high-pressure jet port (19) is connected to an air intake pipe (15), one end of the air intake pipe (15) is connected to an air guide groove (24), and the inner wall of the air guide groove (24) is fitted with a positioning slot (20) A closing block (25) is installed, one end of the closing block (25) is fixedly connected to a telescopic screw (26), and the telescopic screw (26) is screw-engaged with one end of the air guide groove (24), one side of the air guide groove (24) is connected to an air inlet (16), a rotating rod (7) is installed on one side of the upper end of the support plate (3), and an upper clamp (9) is rotatably installed on the upper end of the rotating rod (7), and a locking screw (8) is inserted and installed at the center position of the upper end of the rotating rod (7).

2. The automatic clamping fixture for precision parts according to claim 1 is characterized by: The precision component body (5) is installed in a positioning insertion manner with the first clamp (6) in a positioning slot (20) via a positioning insertion rod (11), and the positioning insertion rod (11) is installed in a spiral manner with the first clamp (6) in a threaded installation groove (22) via a threaded installation block (21).

3. The automatic clamping fixture for precision parts according to claim 2 is characterized by: The first clamp (6) and the second clamp (10) are mounted in a sliding manner and clamped with the precision component body (5) in the telescopic slot (14) via a slider (17), and the slider (17) is elastically telescopically connected to the telescopic slot (14) via a supporting spring (13).

4. The automatic clamping fixture for precision parts according to claim 3 is characterized by: The upper clamp (9) is rotatably connected to the support plate (3) via the rotating rod (7), and the upper clamp (9) is spirally connected to the rotating rod (7) via the locking screw (8).

5. The automatic clamping fixture for precision parts according to claim 4 is characterized by: The second clamp (10) and the fixing plate (12) are installed in a positioning plug-in manner via a splicing plug-in block (18).

6. The automatic clamping fixture for precision parts according to claim 5 is characterized by: The high-pressure jet port (19) is pneumatically connected to the slider (17), and the high-pressure jet port (19) is connected to the air inlet (16) via the air inlet pipe (15), and the closing block (25) is connected to the air inlet (16) in a spiral opening and closing manner via a telescopic screw (26).

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