Fixture of numerical control milling machine

Abstract

The utility model relates to the technical field of numerical control milling machines, in particular to a clamp of a numerical control milling machine, which comprises a clamp base and a positioning column, a middle fixing component is mounted in the middle of the top of the clamp base, and side fixing claw components are mounted on two sides of the top of the clamp base. A sliding fixing block assembly is installed on the side face of the middle fixing assembly, and a sliding structure is arranged in the sliding fixing block assembly. According to the clamp of the numerical control milling machine, rapid installation of a workpiece can be achieved through the clamp, a sliding structure is arranged in the clamp and can slide up and down so that the workpiece can be rapidly and fixedly installed, clamping jaws on the two sides do not need to be thoroughly separated, and only the sliding structure needs to be pressed down, so that the workpiece can be rapidly and fixedly installed. And the elastic force of the bottom of the sliding structure can tightly press the workpiece, and the clamping jaws on the two sides are matched, so that the workpiece is rapidly fixed, the installation time is saved, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control milling machines, in particular to a clamp for a numerical control milling machine. Background Art

[0002] CNC milling machine is an automated mechanical processing equipment, CNC milling machine needs to use fixtures when working. The role of CNC milling machine fixtures is very critical. They ensure that the workpiece maintains the correct relative position with the workbench during the processing, which is essential to ensure processing accuracy and improve production efficiency. The design and application of fixtures directly affect the production efficiency and processing quality of CNC machine tools.

[0003] The prior art also has the following defects during use:

[0004] The clamps in the prior art usually clamp the workpiece by means of the left and right jaws. When clamping a workpiece with a groove, the workpiece is easily deformed. Therefore, a clamp with a fixed support structure in the middle is required. However, this clamp is inconvenient when installing parts. The jaws on both sides need to be separated, and then the workpiece is installed on the support structure in the middle, and then the jaws are locked. This way of installing the workpiece is time-consuming and labor-intensive. Therefore, a clamp that can quickly fix and install the workpiece is required.

[0005] In view of this, we propose a fixture for CNC milling machines to solve the existing problems. Utility Model Content

[0006] The purpose of the utility model is to provide a fixture for a numerically controlled milling machine to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixture for a CNC milling machine, comprising a fixture base and a positioning column, an intermediate fixing assembly is installed at the middle position of the top of the fixture base, side fixing claw assemblies are installed on both sides of the top of the fixture base, a sliding fixing block assembly is installed on the side of the intermediate fixing assembly, and a sliding structure is arranged inside the sliding fixing block assembly.

[0008] Preferably, the intermediate fixing assembly includes an intermediate fixing block and a first bolt at the bottom, a plurality of first bolts are installed at the middle position of the clamp base, and the intermediate fixing block is fixedly installed at the top of the clamp base via the first bolts.

[0009] Preferably, the side fixing claw assembly includes a side fixing claw, a third bolt and a positioning column, the side fixing claws are installed on both sides of the top of the clamp base, and a positioning groove is opened at the bottom of the side fixing claw, and the third bolt and the positioning column are installed in the positioning groove.

[0010] Preferably, the sliding fixed block assembly includes a fixed block body, a fourth bolt, a fixed seat, a slider, a slide rail and an air spring, the fixed seat is provided with a slide rail inside, the slider is installed outside the slide rail, the fixed block body is installed on the outside of the slider, the fourth bolt is installed inside the fixed block body, and the air spring is installed at the bottom of the fixed block body.

[0011] Preferably, a second bolt is installed inside the clamp base.

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

[0013] The utility model designs a clamp for a CNC milling machine, which can realize rapid installation of a workpiece. A sliding structure is arranged inside the clamp, which can slide up and down to quickly fix and install the workpiece. There is no need to completely separate the clamping jaws on both sides. Only the sliding structure needs to be pressed down so that the workpiece can slide to a fixed position. The elastic force at the bottom of the sliding structure can press the workpiece tightly, and cooperate with the clamping jaws on both sides to realize rapid fixing of the workpiece, thereby saving installation time and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a right side cross-sectional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0016] Figure 3 It is a front cross-sectional structural schematic diagram of the utility model.

[0017] In the figure: 1. clamp base; 2. side fixing claw; 3. middle fixing block; 4. first bolt; 5. second bolt; 6. third bolt; 7. positioning column; 8. sliding fixing block assembly; 9. fourth bolt; 10. fixing seat; 11. slider; 12. slide rail; 13. air spring. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Embodiment 1

[0020] like Figure 1 , Figure 2 and Figure 3As shown, a fixture for a CNC milling machine proposed by the utility model includes a fixture base 1 and a positioning column 7. An intermediate fixing component is installed at the middle position of the top of the fixture base 1. The intermediate fixing component is used to support and fix the workpiece, and a sliding structure is installed inside to quickly fix the workpiece. Side fixing claw assemblies are installed on both sides of the top of the fixture base 1. The side fixing claw assemblies are used to clamp the workpiece from both sides. Sliding fixing block assemblies 8 are installed on the sides of the intermediate fixing assembly. The sliding fixing block assembly 8 is used to fix the workpiece on the side of the intermediate fixing assembly. A sliding structure is arranged inside the sliding fixing block assembly 8, and the sliding structure can be moved up and down to quickly fix the workpiece.

[0021] Furthermore, the intermediate fixing assembly includes an intermediate fixing block 3 and a first bolt 4 at the bottom, a plurality of first bolts 4 are installed at the middle position of the clamp base 1, the first bolts 4 are used to fix the intermediate fixing block 3, and the intermediate fixing block 3 is fixedly installed at the top of the clamp base 1 by the first bolts 4.

[0022] Furthermore, the side fixing claw assembly includes a side fixing claw 2, a third bolt 6 and a positioning column 7. The side fixing claws 2 are installed on both sides of the top of the clamp base 1. The side fixing claws 2 are used to fix the workpiece from both sides. A positioning groove is provided at the bottom of the side fixing claw 2. The positioning groove is used to position the side fixing claw 2. The third bolt 6 and the positioning column 7 are installed in the positioning groove. The third bolt 6 is used to fix the side fixing claw 2 on the clamp base 1 from the top. The positioning column 7 is used to linearly constrain the side fixing claw 2 together with the third bolt 6 to prevent the side fixing claw 2 from rotating in the horizontal plane during the clamping process.

[0023] Furthermore, the sliding fixed block assembly 8 includes a fixed block body, a fourth bolt 9, a fixed seat 10, a slider 11, a slide rail 12 and an air spring 13. The fixed seat 10 is provided with a slide rail 12 inside, and the slide rail 12 is used to constrain the slider 11 to slide up and down thereon. The slider 11 is installed outside the slide rail 12, and the slider 11 is used to fix the fixed block body. The fixed block body is installed outside the slider 11, and the fixed block body is used to fix the workpiece. The fourth bolt 9 is installed inside the fixed block body, and the fourth bolt 9 is used to install the fixed block body on the slider 11. The bottom of the fixed block body is installed with an air spring 13, and the air spring 13 is used to give the slider 11 an upward elastic force at the bottom of the slider 11.

[0024] Furthermore, a second bolt 5 is installed inside the fixture base 1, and the second bolt 5 is used to fix the fixture base 1 on the workbench of the CNC milling machine.

[0025] The working principle of the clamp of the CNC milling machine based on the first embodiment is: the side fixing claws 2 on both sides are screwed to the appropriate position so that the workpiece can slide in from the top. When it slides to a certain position, the sliding fixing block assembly 8 is pressed down to clamp the workpiece and then release it to quickly fix the workpiece. The elastic force of the air spring 13 can press the workpiece and cooperate with the side fixing claws 2 on both sides to quickly fix the workpiece.

[0026] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A fixture for a CNC milling machine, comprising a fixture base (1) and a positioning column (7), characterized in that: An intermediate fixing assembly is installed at the middle position of the top of the clamp base (1), side fixing claw assemblies are installed on both sides of the top of the clamp base (1), and a sliding fixing block assembly (8) is installed on the side of the intermediate fixing assembly, and a sliding structure is arranged inside the sliding fixing block assembly (8).

2. The fixture for a CNC milling machine according to claim 1, characterized in that: The intermediate fixing assembly comprises an intermediate fixing block (3) and a first bolt (4) at the bottom; a plurality of first bolts (4) are installed at the middle position of the clamp base (1); and the intermediate fixing block (3) is fixedly installed at the top of the clamp base (1) via the first bolts (4).

3. The fixture for a CNC milling machine according to claim 1, characterized in that: The side fixing claw assembly comprises a side fixing claw (2), a third bolt (6) and a positioning column (7); the side fixing claws (2) are installed on both sides of the top of the clamp base (1); a positioning groove is provided at the bottom of the side fixing claw (2); and the third bolt (6) and the positioning column (7) are installed in the positioning groove.

4. The fixture for a CNC milling machine according to claim 1, characterized in that: The sliding fixed block assembly (8) comprises a fixed block body, a fourth bolt (9), a fixed seat (10), a slider (11), a slide rail (12) and an air spring (13); the fixed seat (10) is provided with a slide rail (12) inside, the slide rail (12) is installed outside the slide rail (12), the fixed block body is installed outside the slider (11), the fixed block body is installed inside the fourth bolt (9), and the bottom of the fixed block body is installed with an air spring (13).

5. The fixture for a CNC milling machine according to claim 1, characterized in that: A second bolt (5) is installed inside the clamp base (1).

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