High-precision clamping fixture

Abstract

The utility model discloses a high-precision clamping fixture which comprises a base, a fixture body is installed above the base, a clamping block is installed on the inner side of the fixture body, a bearing is installed at one end of the clamping block, one end of the bearing is connected with a threaded rod, and one end of the threaded rod is connected with an adjusting end. One end of the connecting block is connected with an elastic butt joint block, the other end of the connecting block is connected with an elastic butt joint block, and mounting grooves are formed in the connecting position of the connecting block and the clamping block and the connecting position of the connecting block and the clamp body. Compared with an existing device, the high-precision clamping fixture has the advantages that the connecting block and the elastic butt joint block are conveniently mounted on the clamping block and the fixture body respectively through the mounting groove, a tubular workpiece can be conveniently clamped through the clamping ring on the connecting block, and meanwhile, the workpiece in a square shape can be conveniently clamped and positioned through cooperation of the clamping block and the fixture body; therefore, the positioning of various workpieces with different shapes can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a high-precision clamping jig. Background Technique

[0002] Before starting the machining of a workpiece, it is first necessary to make the workpiece occupy a correct position on the machine tool or in the jig. In order to prevent the positioned workpiece from being displaced under the action of the cutting force and keep it in the correct position during the machining process, it is also necessary to clamp and fasten the workpiece firmly. This process is called clamping, and thus a high-precision clamping jig is required.

[0003] A Chinese patent with the authorization publication number CN219704224U discloses a jig tooling, which includes: a base having an operation platform and a clamping surface, the clamping surface protruding from the operation platform; a locking mechanism disposed on the operation platform and opposite to the clamping surface; and a first clamping member movably connected to the locking mechanism and located between the locking mechanism and the clamping surface. The locking mechanism has a release position and a locking position. In the release position, the first clamping member can move in a direction close to or away from the clamping surface; in the locking position, the first clamping member maintains a fixed position with the clamping surface. The technical solution of this disclosure effectively solves the technical problems of the traditional jig tooling, such as small application range, poor clamping effect, and low production efficiency.

[0004] Although the above-mentioned jig tooling effectively solves the technical problems of the traditional jig tooling, such as small application range, poor clamping effect, and low production efficiency, during the process of machining parts, a large number of workpieces with different shapes are often used. The shapes of traditional jigs are generally fixed. Therefore, different specifications of jigs need to be used correspondingly during use, which is rather troublesome and also increases the use cost. For this reason, we propose a high-precision clamping jig. Content of the Utility Model

[0005] The purpose of the utility model is to provide a high-precision clamping jig to solve the problem proposed in the above background technique that during the process of machining parts, a large number of workpieces with different shapes are often used. The shapes of traditional jigs are generally fixed. Therefore, different specifications of jigs need to be used correspondingly during use, which is rather troublesome and also increases the use cost.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A high-precision clamping jig, including:

[0007] A base, above which a jig body is installed, and a clamping block is installed inside the jig body. One end of the clamping block is installed with a bearing, and one end of the bearing is connected to a threaded rod, and one end of the threaded rod is connected to an adjusting end.

[0008] Connecting blocks are respectively installed on one side of the clamping block and the fixture body. One end of each connecting block is connected with an elastic docking block, and the other end of each connecting block is also connected with an elastic docking block. Installation grooves are provided at the connection parts of the connecting blocks with the clamping block and the fixture body.

[0009] Preferably, the connecting blocks are detachably connected to the clamping block and the fixture body respectively through the installation grooves and the elastic docking blocks, and an elastic structure is formed between the connecting blocks through the elastic docking blocks and the installation grooves.

[0010] Preferably, the connecting blocks are fixedly connected with the clamping rings, and the clamping rings are symmetrically distributed about the horizontal center line of the connecting blocks.

[0011] Preferably, the threaded rod penetrates through one side inside the fixture body, and the threaded rod is connected with the clamping block through a bearing, and the clamping block is slidably connected with the base through a chute.

[0012] Preferably, the base further is provided with:

[0013] A driving motor is installed inside the base. A gear is connected above the driving motor, and a linkage block is connected above the gear. A tooth groove is formed inside the linkage block, and a rotating clamping groove is provided on the upper end surface of the base.

[0014] Preferably, a rotating structure is formed between the driving motor and the gear, and the gear is meshed and connected with the linkage block through the tooth groove.

[0015] Preferably, the linkage block is fixedly connected with the fixture body, and the fixture body is rotationally clamped and connected with the base through the rotating clamping groove.

[0016] Compared with the prior art, the present utility model provides a high-precision clamping fixture, which has the following beneficial effects:

[0017] Through the installation grooves, the present utility model facilitates the installation of the connecting blocks and the elastic docking blocks on the clamping block and the fixture body respectively. The clamping rings on the connecting blocks can facilitate the clamping of tubular workpieces. At the same time, the cooperation between the clamping block and the fixture body facilitates the clamping and positioning of workpiece with square shapes, so as to realize the positioning of various workpieces with different shapes, avoiding the problem that in the process of machining parts, a large number of workpieces with different shapes are often used. The shapes of traditional fixtures are generally fixed, so different specifications of fixtures need to be used correspondingly during use, which is rather troublesome and increases the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the structure of the fixture body of the present utility model;

[0020] Figure 3 This is the top view structural schematic diagram of the clamping ring of the present utility model;

[0021] Figure 4 This is the top view structural schematic diagram of the gear and linkage block of the present utility model;

[0022] Figure 5 This is the structural schematic diagram of the base of the present utility model.

[0023] In the figure: 1. Base; 2. Fixture body; 3. Clamping block; 4. Bearing; 5. Threaded rod; 6. Adjusting end; 7. Connecting block; 8. Clamping ring; 9. Installation groove; 10. Driving motor; 11. Gear; 12. Linkage block; 13. Tooth groove; 14. Rotating clamping groove; 15. Elastic docking block. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-3, A high-precision clamping fixture, comprising: a base 1, above which a fixture body 2 is installed, and inside the fixture body 2, a clamping block 3 is installed. At one end of the clamping block 3, a bearing 4 is installed, and at one end of the bearing 4, a threaded rod 5 is connected. At one end of the threaded rod 5, an adjusting end 6 is connected; the threaded rod 5 penetrates through one side inside the fixture body 2, and the threaded rod 5 is connected to the clamping block 3 through the bearing 4, and the clamping block 3 is slidably connected to the base 1 through a chute; by adjusting the threaded rod 5, the fixture body 2 can be driven to move to one side, thereby achieving the clamping effect of workpieces of different sizes; a connecting block 7, which is respectively installed on one side of the clamping block 3 and the fixture body 2. At one end of the connecting block 7, an elastic docking block 15 is connected, and at the other end of the connecting block 7, an elastic docking block 15 is connected. Installation grooves 9 are provided at the joints of the connecting block 7 with the clamping block 3 and the fixture body 2; the connecting block 7 is detachably connected to the clamping block 3 and the fixture body 2 through the installation grooves 9 and the elastic docking blocks 15, and an elastic structure is formed between the connecting block 7 and the installation grooves 9 through the elastic docking blocks 15; through the installation grooves 9, it is convenient to install the connecting block 7 and the elastic docking blocks 15 on the clamping block 3 and the fixture body 2 respectively; the connecting block 7 is fixedly connected to a clamping ring 8, and the clamping rings 8 are symmetrically distributed about the horizontal center line of the connecting block 7; the clamping rings 8 on the connecting block 7 can facilitate the clamping of tubular workpieces, and at the same time, the cooperation of the clamping block 3 and the fixture body 2 facilitates the clamping and positioning of workpieces with square shapes, thereby achieving the positioning of various workpieces with different shapes.

[0026] Please refer to Figure 1 , 4 and 5, a high-precision clamping fixture, comprising: a driving motor 10, which is installed inside the base 1. Above the driving motor 10, a gear 11 is connected, and above the gear 11, a linkage block 12 is connected. A tooth groove 13 is formed inside the linkage block 12, and a rotating clamping groove 14 is provided on the upper end surface of the base 1; a rotating structure is formed between the driving motor 10 and the gear 11, and the gear 11 is meshed with the linkage block 12 through the tooth groove 13; the linkage block 12 is fixedly connected to the fixture body 2, and the fixture body 2 is rotatably clamped to the base 1 through the rotating clamping groove 14; the driving motor 10 can drive the gear 11 to rotate, and the rotating gear 11 can drive the linkage block 12 and the fixture body 2 to rotate synchronously through the tooth groove 13, thereby facilitating the rotation of the workpiece and facilitating machining operations at different angles.

[0027] Working principle: When using this high-precision clamping fixture, first select whether to install the clamping ring 8 according to the shape of the workpiece. If installation is required, install the connecting block 7 and the elastic docking block 15 in the installation grooves 9 on the clamping block 3 and the fixture body 2 respectively; then drive the fixture body 2 to move to one side by adjusting the threaded rod 5. The clamping ring 8 on the connecting block 7 can facilitate the clamping of tubular workpieces. At the same time, the cooperation between the clamping block 3 and the fixture body 2 facilitates the clamping and positioning of workpieces with square shapes, so as to realize the positioning of workpieces with various different shapes; finally, start the driving motor 10, and the driving motor 10 drives the gear 11 to rotate. The rotating gear 11 can drive the linkage block 12 and the fixture body 2 to rotate synchronously through the tooth grooves 13, thus facilitating the rotation of the workpiece and facilitating machining operations at different angles. This is the working principle of this high-precision clamping fixture.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision clamping fixture, characterized in that: include: A base (1), a clamp body (2) is mounted above the base (1), a clamp block (3) is mounted on the inner side of the clamp body (2), a bearing (4) is mounted on one end of the clamp block (3), a threaded rod (5) is connected to one end of the bearing (4), and an adjustment end (6) is connected to one end of the threaded rod (5); A connecting block (7) is respectively mounted on one side of the clamping block (3) and the clamp body (2); one end of the connecting block (7) is connected to an elastic docking block (15); the other end of the connecting block (7) is connected to an elastic docking block (15); and a mounting groove (9) is provided at the connection between the connecting block (7), the clamping block (3) and the clamp body (2).

2. A high-precision clamping fixture according to claim 1, characterized in that: The connecting block (7) is detachably connected to the clamping block (3) and the clamp body (2) respectively through the mounting groove (9) and the elastic docking block (15), and the connecting block (7) forms an elastic structure between the elastic docking block (15) and the mounting groove (9).

3. A high-precision clamping fixture according to claim 1, characterized in that: The connecting block (7) is fixedly connected to the clamping ring (8), and the clamping ring (8) is symmetrically distributed with respect to the horizontal center line of the connecting block (7).

4. A high-precision clamping fixture according to claim 1, characterized in that: The threaded rod (5) passes through one side of the clamp body (2), and the threaded rod (5) is connected to the clamping block (3) through a bearing (4), and the clamping block (3) is slidably connected to the base (1) through a sliding groove.

5. A high-precision clamping fixture according to claim 1, characterized in that: The base (1) is also provided with: A drive motor (10) is installed inside the base (1); a gear (11) is connected above the drive motor (10); a linkage block (12) is connected above the gear (11); a tooth groove (13) is provided inside the linkage block (12); and a rotation slot (14) is provided on the upper end surface of the base (1).

6. A high-precision clamping fixture according to claim 5, characterized in that: A rotating structure is formed between the driving motor (10) and the gear (11), and the gear (11) is meshedly connected with the linkage block (12) via a tooth groove (13).

7. A high-precision clamping fixture according to claim 5, characterized in that: The linkage block (12) is fixedly connected to the clamp body (2), and the clamp body (2) is rotationally engaged and connected to the base (1) via a rotational engagement slot (14).

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