A fixed jig for a numerical control machine tool

Abstract

The utility model relates to the technical field of fixture, especially a fixing clamp for numerical control machine tool, including the fixture support seat and setting transmission screw rod in the fixture support seat, the transmission screw rod is provided with the clamping block symmetry, the clamping block carries out positioning clamping to work piece, is provided with the clamping auxiliary assembly symmetry on the both sides of clamping block, and the clamping auxiliary assembly carries out auxiliary clamping positioning to work piece, the scheme mainly is through setting the clamping auxiliary assembly symmetry on the both sides of clamping block to further improve the clamping stability to work piece, namely, on the basis of clamping block clamping the both sides of work piece, through the setting control screw rod and promote auxiliary chuck to carry out clamping to the other two sides of work piece, ensure that work piece does not occur horizontal direction's position deviation in the processing, has positive effect for improving its processing quality.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a fixed fixture for CNC machine tools. Background Technology

[0002] A fixture is a device used in mechanical manufacturing to fix a workpiece in the correct position for construction or inspection. It is also called a clamp. In a broader sense, any device used to quickly, conveniently and safely install a workpiece in any step of the process can be called a fixture.

[0003] In CNC machining, some fixtures use a motor to drive a double-acting lead screw to rotate, which in turn controls the clamping blocks to move in opposite directions to clamp the workpiece. This process is convenient. However, during clamping, the symmetrical clamping blocks clamp the two sides of the workpiece, while the other two sides in the same horizontal direction lack corresponding clamping auxiliary mechanisms. This has a certain impact on the clamping stability and can easily cause the workpiece to shift position during clamping, which will also affect the final machining quality.

[0004] Therefore, this utility model proposes a fixing fixture for CNC machine tools to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a fixing fixture for CNC machine tools to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fixed fixture for a CNC machine tool, comprising a fixture support base and a transmission lead screw disposed in the fixture support base, wherein clamping blocks are symmetrically arranged on the transmission lead screw, the clamping blocks positioning and clamping the workpiece, and clamping auxiliary components are symmetrically arranged on both sides of the clamping blocks, the clamping auxiliary components assisting in clamping and positioning the workpiece.

[0007] Preferably, the clamping auxiliary component includes a support plate, a fixing foot, a positioning screw, an adjusting screw, an auxiliary handle, an auxiliary clamping plate, a rubber disc pad, and a fastening component; one end of the support plate is integrally formed with a fixing foot, which is fixedly connected to the side wall of the clamping block by a positioning screw, and the other end of the support plate is threadedly connected with an adjusting screw.

[0008] Preferably, an auxiliary handle is fixedly provided at one end of the control screw. The auxiliary handle is disc-shaped and has anti-slip texture on its annular surface. An auxiliary clamping plate is fixedly provided at the other end of the control screw.

[0009] Preferably, a rubber pad is fixedly provided on one end of the auxiliary clamping plate.

[0010] Preferably, the fastening assembly is disposed on the support plate, and the fastening assembly includes a fixing sleeve, a threaded groove, a fastening screw and an auxiliary knob; the fixing sleeve is fixedly disposed on the support plate, and the adjusting screw passes through the fixing sleeve, and a threaded groove is provided on the side wall of the fixing sleeve.

[0011] Preferably, the threaded groove is threaded to be compatible with the fastening screw, and an auxiliary knob is fixedly provided at one end of the fastening screw.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The fixed fixture designed in this utility model includes a fixture support base and a transmission screw disposed in the fixture support base. Clamping blocks are symmetrically arranged on the transmission screw, and the clamping blocks position and clamp the workpiece. Clamping auxiliary components are symmetrically arranged on both sides of the clamping blocks, and the clamping auxiliary components assist in clamping and positioning the workpiece. This solution mainly improves the clamping stability of the workpiece by symmetrically arranging clamping auxiliary components on both sides of the clamping blocks. That is, based on the clamping blocks clamping the workpiece on both sides, the auxiliary chuck is pushed by a set adjusting screw to clamp the other two sides of the workpiece, ensuring that the workpiece will not shift horizontally during processing, which has a positive effect on improving processing quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the workpiece clamping structure of the fixed fixture of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection of the fixing clamp structure of this utility model;

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of the structural connection at point A in the middle;

[0017] Figure 4 This is a schematic diagram of the connection structure of the clamping auxiliary component of this utility model;

[0018] Figure 5 for Figure 4 Enlarged schematic diagram of the structural connection at point B.

[0019] In the diagram: 1. Fixture support base; 2. Workpiece; 3. Transmission screw; 4. Clamping block; 501. Bearing plate; 502. Fixed foot; 503. Positioning screw; 504. Adjusting screw; 505. Auxiliary handle; 506. Auxiliary chuck; 507. Rubber disc pad; 601. Fixed sleeve; 602. Threaded through groove; 603. Fastening screw; 604. Auxiliary knob. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Please see Figures 1 to 5 This utility model provides a technical solution: a fixed fixture for a CNC machine tool, including a fixture support 1 and a transmission screw 3 disposed in the fixture support 1. Clamping blocks 4 are symmetrically arranged on the transmission screw 3. The clamping blocks 4 position and clamp the workpiece 2. Clamping auxiliary components are symmetrically arranged on both sides of the clamping blocks 4. The clamping auxiliary components assist in clamping and positioning the workpiece 2.

[0022] This solution mainly improves the clamping stability of the workpiece 2 by symmetrically setting clamping auxiliary components on both sides of the clamping block 4. That is, on the basis of clamping the workpiece 2 on both sides by the clamping block 4, the auxiliary chuck 506 is pushed by the set adjustment screw 504 to clamp the other two sides of the workpiece 2, ensuring that the workpiece 2 will not shift horizontally during the processing, which has a positive effect on improving its processing quality.

[0023] One end of the bearing plate 501 in the clamping auxiliary assembly is integrally formed with a fixing foot 502, which is fixedly connected to the side wall of the clamping block 4 by a positioning screw 503. An adjusting screw 504 is threaded through the other end of the bearing plate 501. An auxiliary handle 505 is fixedly mounted on one end of the adjusting screw 504. The auxiliary handle 505 is disc-shaped and has anti-slip textures on its annular surface. An auxiliary chuck 506 is fixedly mounted on the other end of the adjusting screw 504. A rubber disc pad 507 is fixedly mounted on one end of the auxiliary chuck 506. Workpiece 2 is placed on fixture support 1, and then the clamping block 4 is moved by the transmission screw 3. The symmetrically arranged clamping blocks 4 clamp both sides of workpiece 2. Then, the adjusting screw 504 is rotated by the auxiliary handle 505, so that the adjusting screw 504 pushes the auxiliary chuck 506 to squeeze and clamp workpiece 2 until the adjusting screw 504 is tightened. During this process, a rubber disc pad 507 is also fixedly set on the clamping end face of the auxiliary chuck 506. Its function is to provide protection in addition to clamping and limiting workpiece 2, so as to avoid squeezing damage during the squeezing and clamping process.

[0024] To further improve the clamping and limiting stability of workpiece 2, the fastening assembly is set on the bearing plate 501. The fixing sleeve 601 in the fastening assembly is fixedly set on the bearing plate 501, and the adjusting screw 504 passes through the fixing sleeve 601. A threaded groove 602 is provided on the side wall of the fixing sleeve 601. The threaded groove 602 is threadedly connected to the fastening screw 603. An auxiliary knob 604 is fixedly set at one end of the fastening screw 603. That is, after the adjusting screw 504 is tightened, the fastening screw 603 is rotated by the auxiliary knob 604, so that one end of the fastening screw 603 squeezes the side wall of the adjusting screw 504, improving the positional stability of the adjusting screw 504 after tightening, and thus further improving the limiting stability of workpiece 2 by the auxiliary chuck 506.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing fixture for a CNC machine tool, characterized in that: It includes a clamp support base (1) and a transmission screw (3) disposed in the clamp support base (1). A clamping block (4) is symmetrically disposed on the transmission screw (3). The clamping block (4) positions and clamps the workpiece (2). A clamping auxiliary component is symmetrically disposed on both sides of the clamping block (4). The clamping auxiliary component assists in clamping and positioning the workpiece (2).

2. The fixing fixture for CNC machine tools according to claim 1, characterized in that: The clamping auxiliary assembly includes a support plate (501), a fixing foot (502), a positioning screw (503), an adjusting screw (504), an auxiliary handle (505), an auxiliary clamping plate (506), a rubber disc pad (507), and a fastening assembly; one end of the support plate (501) is integrally formed with a fixing foot (502), and the fixing foot (502) is fixedly connected to the side wall of the clamping block (4) by a positioning screw (503), and the other end of the support plate (501) is threadedly connected with an adjusting screw (504).

3. The fixing fixture for CNC machine tools according to claim 2, characterized in that: An auxiliary handle (505) is fixedly provided at one end of the control screw (504). The auxiliary handle (505) is disc-shaped and has anti-slip texture on its annular surface. An auxiliary chuck (506) is fixedly provided at the other end of the control screw (504).

4. The fixing fixture for CNC machine tools according to claim 2, characterized in that: A rubber pad (507) is fixedly provided on one end of the auxiliary clamping plate (506).

5. The fixing fixture for CNC machine tools according to claim 2, characterized in that: The fastening assembly is mounted on the support plate (501). The fastening assembly includes a fixed sleeve (601), a threaded groove (602), a fastening screw (603), and an auxiliary knob (604). The fixed sleeve (601) is fixedly mounted on the support plate (501), and the adjusting screw (504) passes through the fixed sleeve (601). A threaded groove (602) is provided on the side wall of the fixed sleeve (601).

6. The fixing fixture for CNC machine tools according to claim 5, characterized in that: The threaded groove (602) is threadedly connected to the fastening screw (603), and an auxiliary knob (604) is fixedly provided at one end of the fastening screw (603).

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