Fixture for milling machine

Abstract

The utility model belongs to the technical field of machining equipment, and provides a fixture for a milling machine, which comprises bases, clamping blocks and T-shaped blocks, the bases, the clamping blocks and the T-shaped blocks are arranged in pairs, the bases are fixed on a milling machine workbench through the T-shaped blocks, the clamping blocks are fixed on the bases, and a workpiece to be milled is fixed through the paired clamping blocks; the boss of the clamping block and the groove of the base are designed to be matched with the inclined plane, the bolt is tightened downwards to generate inclined force so as to clamp a workpiece, the clamping block can be effectively prevented from moving in the vertical direction of the workpiece, meanwhile, the clamp clamps the workpiece from the side face, the height of the contact face of the clamping block and the workpiece is smaller than the thickness of the workpiece, and the clamping head part of the clamping block is designed to be arc-shaped. The influence of the clamp on rotation of the milling cutter can be avoided to the greatest extent, and cutter breakage is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing equipment and relates to a clamp, in particular to a clamp for a milling machine. Background Art

[0002] The main function of a milling machine is to mill the surface of a workpiece. Before milling, the workpiece needs to be fixed with a fixture to prevent it from shifting during processing and affecting normal production and processing. Existing milling machine fixtures are generally installed directly on the milling machine, such as Figure 1 As shown, the pressure plate of the fixture is fixed by bolts, and the pressure plate acts on the surface of the workpiece. The workpiece is pressed by the screwing of the bolts. At the same time, the fixture acts on the upper surface of the workpiece. The height of the fixture may hinder the rotation of the milling cutter and there is a risk of tool breakage. Utility Model Content

[0003] The purpose of the utility model is to provide a fixture for a milling machine, which can solve the problems existing in the existing milling machine fixtures, improve the stability of the fixture's clamping, and avoid the risk of the fixture hindering the milling cutter's rotation and causing the cutter to break.

[0004] The technical solution adopted by the present invention to achieve the above-mentioned purpose is:

[0005] A fixture for a milling machine includes a base, a clamping block, and a T-shaped block. The base, clamping block, and T-shaped block are all arranged in pairs. The base is fixed to the milling machine workbench through the T-shaped block, and the clamping block is fixed to the base. The workpiece to be milled is fixed by the paired clamping blocks.

[0006] Furthermore, the mating surfaces of the base and the clamping block are inclined surfaces, a boss is provided on the inclined surface of the base, a groove is provided on the inclined surface of the clamping block, the sizes of the boss and the groove are matched and bolt holes are processed, the bolt holes on the clamping block are long slot bolt holes, and the base and the clamping block are fixed by bolt connection.

[0007] Furthermore, the chuck portion of the clamping block is processed into an arc-shaped surface, and the thickness of the chuck is smaller than the thickness of the workpiece.

[0008] Furthermore, the T-shaped block cooperates with the T-shaped slot on the milling machine table, and the base is fixed to the milling machine table by bolts.

[0009] The beneficial effects of the utility model are:

[0010] The clamping block boss and base groove of the clamp are designed with inclined surfaces. The clamping block is pressed downward by tightening the bolts, generating an oblique force to clamp the workpiece, which can effectively prevent the clamping block from moving in the vertical direction of the workpiece. At the same time, the clamp clamps the workpiece from the side. The contact surface height between the clamping block and the workpiece is lower than the thickness of the workpiece, and the chuck part of the clamping block is designed to be arc-shaped, which can minimize the influence of the clamp on the rotation of the milling cutter and effectively prevent the cutter from breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of an existing milling machine fixture;

[0012] Figure 2 This is the front view of the milling machine fixture structure of the utility model;

[0013] Figure 3 It is a side view of the fixture structure of the milling machine of the utility model;

[0014] Figure 4 This is a top view of the milling machine fixture structure of the utility model;

[0015] Figure 5 It is a three-dimensional view of the base in the milling machine fixture of the utility model;

[0016] Figure 6 It is a three-dimensional view of the clamping block in the milling machine fixture of the utility model;

[0017] In the figure, 1 is the milling machine worktable; 2 is the base; 3 is the clamping block; 4 is the workpiece; 5 is the first bolt; 6 is the T-shaped block; 7 is the boss; 8 is the groove; 9 is the curved surface; 10 is the T-shaped slot; 11 is the second bolt. DETAILED DESCRIPTION

[0018] To make the above-mentioned purposes, features, and advantages of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] like Figures 2 to 6 As shown, a fixture for a milling machine includes a base 2, a clamping block 3, and a T-shaped block 6. The base 2, the clamping block 3, and the T-shaped block 6 are all arranged in pairs. The base 2 is fixed to the milling machine worktable 1 through the T-shaped block 6, and the clamping block 3 is fixed to the base 2. The workpiece to be milled is fixed by the paired clamping blocks 3; the matching surfaces of the base 2 and the clamping block 3 are inclined surfaces, and a boss 7 is provided on the inclined surface of the base 2, and a groove 8 is provided on the inclined surface of the clamping block 3. The boss 7 and the groove 8 are matched in size and processed with bolt holes. The bolt holes on the clamping block 3 are long-slot bolt holes. The base 2 and the clamping block 3 are connected and fixed by bolt 1 5; the chuck part of the clamping block 3 is processed with an arc surface 9, and the thickness of the chuck part is less than the thickness of the workpiece; the T-shaped block 6 cooperates with the T-slot 10 on the milling machine worktable 1, and the base 2 is fixed to the milling machine worktable 1 by bolt 2 11.

[0020] When using this clamp, connect the paired bases 2 and T-blocks 6 with bolts 11 and install them to the appropriate position of the milling machine worktable 1. Tighten the bolts 11 and the base 2 will be fixed to the milling machine worktable 1. Place the workpiece 4 on the milling machine worktable 1, between the paired bases 2, and then connect a pair of clamps 3 to the base 2 with bolts 5 and tighten them. The boss 7 of the clamp 3 and the groove 8 of the base 2 are matched with the inclined surface design. The clamp 3 is pressed downward by tightening the bolts 5, thereby generating an oblique force to tighten the workpiece. This can effectively prevent the clamp 3 from moving in the vertical direction of the workpiece 4. At the same time, the clamp clamps the workpiece from the side. The contact surface height of the clamp 3 and the workpiece 4 is lower than the thickness of the workpiece and the chuck part of the clamp 3 is designed as an arc surface 9. This can minimize the influence of the clamp on the rotation of the milling cutter and effectively prevent the cutter from breaking.

[0021] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. Therefore, the scope of protection of the present utility model should be based on the scope of protection of the claims.

Claims

1. A fixture for a milling machine, characterized in that: It includes a base, a clamping block, and a T-shaped block. The base, clamping block and T-shaped block are all arranged in pairs. The base is fixed to the milling machine workbench through the T-shaped block, and the clamping block is fixed to the base. The workpiece to be milled is fixed by the paired clamping blocks; the mating surfaces of the base and the clamping block are inclined surfaces, and a boss is provided on the inclined surface of the base, and a groove is provided on the inclined surface of the clamping block. The boss and the groove are matched in size and are processed with bolt holes. The bolt holes on the clamping block are long-slot bolt holes. The base and the clamping block are fixed by bolt connection.

2. A fixture for a milling machine according to claim 1, characterized in that: The chuck portion of the clamping block is processed into an arc-shaped surface, and the thickness of the chuck is smaller than the thickness of the workpiece.

3. The fixture for a milling machine according to claim 1, characterized in that: The T-shaped block cooperates with the T-shaped slot on the milling machine workbench, and the base is fixed on the milling machine workbench by bolts.

Images