Fixture for precision machining

Abstract

The utility model provides a fixture for precision machining, which relates to the field of fixtures for precision machining and comprises a support table, clamping components are mounted on two sides of the top of the support table, the clamping components are used for positioning a workpiece, pressing mechanisms are mounted on two sides of the support table, and the pressing mechanisms are used for pressing the workpiece. The pressing mechanism comprises a pressing assembly and a driving assembly, the driving assembly is used for providing power for the pressing assembly, the pressing assembly is used for pressing a workpiece, and the pressing assembly comprises a base, a connecting plate, a pressing plate and a gasket; through the arrangement of the clamping assembly, the pressing assembly and the driving assembly, the effect of fixing the workpiece is achieved, the clamping assembly is used for extruding and fixing the workpiece, the driving assembly drives the pressing assembly to move, the pressing assembly can press the workpiece from top to bottom, and therefore the workpiece can be fixed conveniently. And therefore, the workpiece can be prevented from deviating in the machining process, and the using effect of the clamp is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of precision machinery processing clamps, specifically a kind of clamp for precision machinery processing. BACKGROUND

[0002] Precision machinery processing is a kind of through cutting, grinding and other means to metal or other materials are processed to reach high precision, high surface quality requirement technology, widely used in aerospace, automobile manufacturing, medical devices and other fields, is an important component of modern manufacturing, precision machinery processing needs to use clamp to fix workpiece, ensure that workpiece does not displace in the processing process, to guarantee the machining precision;

[0003] According to Chinese patent application No. 202222013993.9, a kind of precision machinery processing clamp is disclosed, including operation table, the inside of the operation table is provided with fixing device, the side of the operation table is provided with limit component, the fixing device includes: two-way threaded rod, the two-way threaded rod rotationally connects on the inner wall of operation table;Rotating rod, the rotating rod is fixedly connected with two-way threaded rod;Support column, the support column is penetrated by two-way threaded rod and is screw connected with two-way threaded rod;And clamping assembly, the clamping assembly is fixedly connected at the end of support column away from the inner wall of operation table, by the use of fixing device, when the workpiece is fixed, different sizes of workpiece can be fixed, square and circular workpiece can be fixed at the same time, increase the range of use, without replacing mechanical processing clamp, save working time, improve work efficiency;

[0004] The prior art effectively solves the problem that the clamp for precision machinery processing cannot clamp and fix workpieces of different shapes, and has the advantage of being able to fix workpieces of different shapes, but the clamp fixes the workpiece by squeezing from both sides, lacks downward pressure on the workpiece, and the workpiece is prone to shift during processing, thereby reducing the effectiveness of the clamp.

[0005] Therefore, the utility model provides a clamp for precision machinery processing to solve the above problems. UTILITY MODEL CONTENTS

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] The utility model relates to a clamp for precision machining, including support platform, both sides of the top of support platform are equipped with clamping assembly, clamping assembly is used for positioning work piece, both sides of support platform are equipped with pressure mechanism, pressure mechanism includes pressure assembly and drive assembly, drive assembly is used for power supply to pressure assembly, pressure assembly is used for pressing work piece, pressure assembly includes base, connecting plate, pressure plate and gasket, drive assembly includes servo motor, driving gear, driven gear and transmission rod, drive assembly is installed in the inner chamber of base, connecting plate is located at the top of base and is movably connected with base, gasket is installed on the surface of pressure plate, and one end of connecting plate away from base is fixedly connected with pressure plate.

[0008] Further, in the utility model, the inner wall of the base is fixedly connected with the servo motor, the driving gear is engaged with the driven gear, and the output shaft of the servo motor is in transmission connection with the driving gear.

[0009] Further, in the utility model, one end of the transmission rod is fixedly connected with the driven gear, and the other end of the transmission rod penetrates to the outside of the base and is fixedly connected with the connecting plate.

[0010] Further, in the utility model, the clamping assembly comprises an electric push rod and a flexible clamp plate, and the flexible clamp plate is composed of a thimble, a spring and a pneumatic self-locking ring.

[0011] Further, in the utility model, the electric push rod is fixedly connected with the support platform, and the output end of the electric push rod is fixedly connected with the flexible clamp plate.

[0012] Further, in the utility model, the base is fixedly connected with the support platform, and the gasket is made of rubber material.

[0013] Beneficial effects, the utility model has following beneficial effects:

[0014] The utility model discloses a clamping assembly, a pressing assembly and a drive assembly, which can fix workpieces, the clamping assembly is used for extruding and fixing workpieces, the drive assembly drives the pressing assembly to move, so that the pressing assembly can press workpieces from top to bottom, thereby preventing workpieces from deviating during machining, and effectively improving the use effect of the clamp. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the front view structure schematic diagram of the utility model;

[0016] Figure 2 It is the separation state structure schematic diagram of the support platform and the pressing assembly of the utility model;

[0017] Figure 3is the main view structure schematic diagram of the compression assembly of the utility model;

[0018] Figure 4 is the separation state structure schematic diagram of the compression assembly and the driving assembly of the utility model.

[0019] In the figure,

[0020] 1, support table, 2, clamping assembly, 201, electric push rod, 202, flexible clamping plate, 3, compression mechanism, 31, compression assembly, 311, base, 312, connecting plate, 313, pressing plate, 314, gasket, 32, driving assembly, 321, servo motor, 322, driving gear, 323, driven gear, 324, transmission rod. DETAILED DESCRIPTION

[0021] In order to understand the technical content of the utility model more, specific embodiments are raised and the following is described with the aid of the accompanying drawings. In the present disclosure, aspects of the utility model are described with reference to the accompanying drawings, and many embodiments of the description are shown. The embodiments of the present disclosure are not necessarily defined in all aspects including the utility model. It should be understood that the above-mentioned various concepts and embodiments, as well as those concepts and embodiments described in more detail below, can be implemented in any one of many ways, because the concepts and embodiments disclosed by the utility model are not limited to any implementation. In addition, some aspects of the utility model can be used alone, or used in any appropriate combination with other aspects of the utility model.

[0022] Embodiment 1

[0023] As Figures 1-4 shown, it is the first embodiment of the utility model, and the embodiment provides a clamp for precision machining, which comprises a support table 1, both sides of the top of the support table 1 are provided with clamping assemblies 2, the clamping assemblies 2 are used for positioning workpieces, both sides of the support table 1 are provided with compression mechanisms 3, the compression mechanisms 3 comprise compression assemblies 31 and driving assemblies 32, the driving assemblies 32 are used for providing power to the compression assemblies 31, the compression assemblies 31 are used for compressing workpieces, the compression assemblies 31 comprise bases 311, connecting plates 312, pressing plates 313 and gaskets 314, the driving assemblies 32 comprise servo motors 321, driving gears 322, driven gears 323 and transmission rods 324, the driving assemblies 32 are installed in the inner cavity of the base 311, the connecting plate 312 is located at the top of the base 311 and is movably connected with the base 311, the gasket 314 is installed on the surface of the pressing plate 313, and the end of the connecting plate 312 away from the base 311 is fixedly connected with the pressing plate 313.

[0024] As Figures 1-4As shown, the output shaft of the servo motor 321 rotates in the positive direction to drive the driving gear 322 to rotate, the driving gear 322 drives the driven gear 323 to rotate when rotating, the driven gear 323 drives the connecting plate 312 to overturn downward through the transmission rod 324, so that the pressing plate 313 and the gasket 314 can press the workpiece from top to bottom, preventing the workpiece from deviating during processing, effectively improving the fixing effect of the clamp, and the output shaft of the servo motor 321 reverses to drive the connecting plate 312 to reset, thereby releasing the fixing of the workpiece.

[0025] Embodiment 2

[0026] Referring to Figures 1-4 , the second embodiment of the utility model, the embodiment is based on the last embodiment.

[0027] In the embodiment, the servo motor 321 is fixedly connected with the inner wall of the base 311, the driving gear 322 is engaged with the driven gear 323, and the output shaft of the servo motor 321 is in transmission connection with the driving gear 322.

[0028] One end of the transmission rod 324 is fixedly connected with the driven gear 323, and the other end of the transmission rod 324 penetrates to the outside of the base 311 and is fixedly connected with the connecting plate 312.

[0029] The clamping assembly 2 comprises an electric push rod 201 and a flexible clamp plate 202, and the flexible clamp plate 202 is composed of a thimble, a spring and a pneumatic self-locking ring.

[0030] The electric push rod 201 is fixedly connected with the support table 1, and the output end of the electric push rod 201 is fixedly connected with the flexible clamp plate 202.

[0031] The base 311 is fixedly connected with the support table 1, and the gasket 314 is made of rubber material.

[0032] As Figures 1-4 shown, the flexible clamp plate 202 adopts compressed air as a power source, the surface of the flexible clamp plate 202 is also provided with an air inlet valve and an air outlet valve, the output end of the electric push rod 201 extends to push the flexible clamp plate 202 to move to the middle of the support table 1, the two flexible clamp plates 202 can fix the workpiece, the thimble and the spring on the surface of the flexible clamp plate 202 can adapt to workpieces of different shapes, the output shaft of the servo motor 321 rotates in the positive direction to drive the driving gear 322 to rotate, the driving gear 322 drives the driven gear 323 to rotate when rotating, the driven gear 323 drives the connecting plate 312 to overturn downward through the transmission rod 324, so that the pressing plate 313 and the gasket 314 can press the workpiece from top to bottom, preventing the workpiece from deviating during processing, effectively improving the fixing effect of the clamp, and the output shaft of the servo motor 321 reverses to drive the connecting plate 312 to reset, thereby releasing the fixing of the workpiece.

[0033] In use, the output end of the electric push rod 201 extends to push the flexible clamping plate 202 to move to the middle of the support table 1, the two flexible clamping plates 202 can fix the workpiece to be processed, the thimble on the surface of the flexible clamping plate 202 cooperates with the spring to adapt to workpieces of different shapes, the output shaft of the servo motor 321 rotates in the positive direction to drive the driving gear 322 to rotate, the driving gear 322 rotates to drive the driven gear 323 to rotate, the driven gear 323 rotates to drive the connecting plate 312 to overturn downward through the transmission rod 324, so that the pressing plate 313 and the gasket 314 can press the workpiece from top to bottom, so that the workpiece is prevented from deviating in the process of processing, and the fixing effect of the clamp is effectively improved.

[0034] The standard parts used in the application file can be purchased from the market, and can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the mechanical, parts and equipment adopt conventional models in the prior art, the control mode is automatically controlled through the controller, the control circuit of the controller can be realized through simple programming by the person skilled in the art, and it belongs to the common knowledge in the art, and the application is mainly used to protect the mechanical device, so the control mode and the circuit connection are not explained in detail.

[0035] Although the present application has been disclosed with the preferred embodiments, it is not intended to limit the present application. Those skilled in the art can make various modifications and improvements without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the definition of the claims.

Claims

1. A jig for precision machining comprising a support table (1), characterized in that: The support table (1) top of both sides are equipped with clamping assembly (2), the clamping assembly (2) for positioning workpiece, both sides of the support table (1) are equipped with pressing mechanism (3), the pressing mechanism (3) includes pressing assembly (31) and drive assembly (32), the drive assembly (32) for pressing assembly (31) power supply, the pressing assembly (31) for pressing workpiece, the pressing assembly (31) includes base (311), connecting plate (312), pressing plate (313) and gasket (314), the drive assembly (32) includes servo motor (321), driving gear (322), driven gear (323) and transmission rod (324), the drive assembly (32) is installed in the inner cavity of base (311), the connecting plate (312) is located at the top of base (311), and is movably connected with base (311), the gasket (314) is installed on the surface of pressing plate (313), one end of the connecting plate (312) away from base (311) is fixedly connected with pressing plate (313).

2. The fixture for precision machining according to claim 1, wherein: The servo motor (321) is fixedly connected with the inner wall of the base (311), the driving gear (322) is engaged with the driven gear (323), and the output shaft of the servo motor (321) is in transmission connection with the driving gear (322).

3. The fixture for precision machining of claim 1, wherein: One end of the transmission rod (324) is fixedly connected with the driven gear (323), and the other end of the transmission rod (324) penetrates to the outside of the base (311) and is fixedly connected with the connecting plate (312).

4. The fixture for precision machining of claim 1, wherein: The clamping assembly (2) includes an electric push rod (201) and a flexible clamp plate (202), and the flexible clamp plate (202) is composed of a thimble, a spring and a pneumatic self-locking ring.

5. The fixture for precision machining of claim 4, wherein: The electric push rod (201) is fixedly connected with the support table (1), and the output end of the electric push rod (201) is fixedly connected with the flexible clamp plate (202).

6. The fixture for precision machining of claim 1, wherein: The base (311) is fixedly connected with the support table (1), and the gasket (314) is made of rubber material.

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