Inlaid clamping jaw

Abstract

The utility model discloses an embedded clamping jaw, and belongs to the technical field of chucks. Comprising a clamping jaw body, an embedded block and an embedded column, and an H-shaped clamping groove is formed in the front end of the clamping jaw body; claw teeth are integrally formed on the top and the bottom of the clamping groove of the clamping claw body respectively; a rack movably connected with the chuck in a clamped mode is integrally formed at the bottom of the clamping jaw body. A first screw hole is formed in the inner side of the clamping groove; the embedded block is movably clamped to the inner side of the clamping groove from the side part of the clamping jaw body; the insert block is provided with a plurality of hole seats; a through hole is formed in the center of the insert block; a limiting bolt is arranged on the inner side of the through hole and is fastened with the first screw hole; the embedded column is fixed on the embedded block; the embedded column comprises a fastening section fixed to the hole seat, a conical section is integrally manufactured at the front end of the fastening section, and a positioning head is integrally manufactured at the front end of the conical section. According to the embedded clamping jaw, special-shaped workpieces and workpieces with hole slot positions can be clamped, the phenomenon of empty clamping of the clamping jaw is avoided, and the clamping stability is high.

Description

Technical Field

[0001] The utility model specifically relates to an inlay claw and belongs to the technical field of chucks. Background Art

[0002] A chuck is a mechanical device used on a machine tool to clamp a workpiece. It is a machine tool accessory that clamps and positions the workpiece by radial movement of movable jaws evenly distributed on the chuck body. A chuck generally consists of a chuck body, movable jaws, and a jaw drive mechanism. The chuck body has a minimum diameter of 65 mm and a maximum diameter of 1500 mm, with a through hole in the center to allow the workpiece or bar to pass through. A chuck is usually installed on lathes, external cylindrical grinders, and internal cylindrical grinders, and can also be used in conjunction with various indexing devices on milling machines and drilling machines. When the existing jaws move, the jaws are equidistant from the center of the chuck. When the workpiece is a special-shaped structure, a certain jaw in the chuck will not be able to contact the workpiece, resulting in an empty clamp. In addition, the existing jaws have a large contact area with the workpiece. For workpieces with hole slots, the existing jaws cannot clamp the hole slots. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes an inlay clamping claw, which can clamp special-shaped workpieces and workpieces with hole slots, avoid the phenomenon of empty clamping of the clamping claw, and has strong clamping stability.

[0004] The inlay claw of the utility model comprises:

[0005] A claw body, wherein an H-shaped slot is provided at the front end of the claw body; claw teeth are formed integrally at the top and bottom of the slot respectively; a rack for movably engaging with the chuck is formed integrally at the bottom of the claw body; a first screw hole is formed inside the slot; when the chuck is working, the rack at the bottom of the claw body is driven to slide linearly, thereby driving the claw teeth to clamp the workpiece;

[0006] The insert block is movably connected to the inner side of the slot from the side of the claw body; a plurality of holes are provided on the insert block; a through hole is provided at the center of the insert block; a limiting bolt is provided inside the through hole, and the limiting bolt is fastened with the first screw hole; after the insert block is embedded in the claw body, the slot can limit the insert block and lock it by the limiting bolt;

[0007] An embedded column, wherein the embedded column is fixed on the embedded block; the embedded column comprises a fastening section fixed to the hole seat, the front end of the fastening section is integrally formed with a tapered section, and the front end of the tapered section is integrally formed with a positioning head; the positioning head can clamp the workpiece with a hole slot, and by adjusting the length of each embedded column protruding from the same embedded block, the special-shaped surface of each special-shaped workpiece can be clamped.

[0008] Furthermore, the hole seat is a second screw hole, and the fastening section is screwed and fixed to the second screw hole; during installation, the assembly can be completed by directly screwing the embedded column and the embedded block, and the protruding length of the embedded column can be adjusted according to the screw-in depth.

[0009] Furthermore, the hole seat is a convex hole, and the fastening section is fixed to the large inner diameter end of the convex hole by heat shrink fitting; the difference in thermal expansion coefficients between the embedded block and the embedded column is used to clamp the embedded column strongly and with high precision; when installing and removing the embedded column, the embedded block needs to be heated first, and when the embedded block is heated, the embedded column is embedded in the embedded block or pushed out from the other end of the embedded block.

[0010] Furthermore, the conical section is radially provided with a through hole; during installation and disassembly, the handle is inserted into the through hole to facilitate embedding the embedded column into the embedded block.

[0011] Furthermore, a movable gap is provided between the embedding block and the slot; an adjusting bolt is screwed on one end of the embedding block away from the embedding column; the adjusting bolt is pressed against the inner side of the slot; the limiting bolt includes an optical axis section; the optical axis section is slidably engaged with the through hole; the limiting bolt is fastened to the first screw hole, and during installation, the position of the embedding block in the slot can be adjusted by adjusting the adjusting bolt, and after the adjustment is completed, the adjusted position can be locked by the limiting bolt.

[0012] Compared with the prior art, the inlay jaws of the utility model can adjust the extension length of each jaw individually according to the workpiece clamping requirements, complete the clamping of special-shaped workpieces and workpieces with hole grooves, avoid the phenomenon of empty clamping of the jaws, have strong clamping stability, and when the positioning head of the jaw is worn, it can be disassembled and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the claw body of the utility model.

[0014] Figure 2 The utility model is a schematic diagram of the overall structure of an embodiment of the insert block.

[0015] Figure 3 The utility model is a schematic diagram of the overall structure of an embodiment of the embedded column.

[0016] Figure 4 The utility model is a schematic structural diagram of an embodiment of the inlay claw.

[0017] Figure 5 It is a schematic diagram of the overall structure of the limiting bolt of the utility model.

[0018] Figure 6 It is a schematic diagram of the overall structure of another embodiment of the embedded column of the utility model.

[0019] Figure 7It is a schematic diagram of the overall structure of another embodiment of the inlay claw of the utility model.

[0020] Figure 8 It is a schematic diagram of the overall structure of another embodiment of the insert block of the utility model.

[0021] Figure numerals: 1. claw body, 2. slot, 3. claw teeth, 4. rack, 5. first screw hole, 6. embedment block, 7. hole seat, 8. through hole, 9. limit bolt, 10. embedment column, 11. fastening section, 12. conical section, 13. positioning head, 14. through hole, 15. adjusting bolt. DETAILED DESCRIPTION

[0022] Example:

[0023] like Figures 1 to 8 Setting jaws shown, comprising:

[0024] A claw body 1, wherein an H-shaped slot 2 is provided at the front end of the claw body 1; claw teeth 3 are formed integrally at the top and bottom of the slot 2 of the claw body 1; a rack 4 is formed integrally at the bottom of the claw body 1 and is movably engaged with the chuck; a first screw hole 5 is formed inside the slot 2; when the chuck is working, the rack 4 at the bottom of the claw body 1 is driven to slide linearly, thereby driving the claw teeth 3 to clamp the workpiece;

[0025] The insert 6 is movably clamped from the side of the claw body 1 to the inner side of the slot 2; a plurality of holes 7 are provided on the insert 6; a through hole 8 is provided at the center of the insert 6; a limiting bolt 9 is provided inside the through hole 8, and the limiting bolt 9 is fastened with the first screw hole 5; after the insert 6 is embedded in the claw body 1, the slot 2 can limit the insert 6 and lock it by the limiting bolt 9;

[0026] The embedded column 10 is fixed on the embedded block 6; the embedded column 10 includes a fastening section 11 fixed to the hole seat 7, the front end of the fastening section 11 is integrally formed with a tapered section 12, and the front end of the tapered section 12 is integrally formed with a positioning head 13; the positioning head 13 can clamp the workpiece with a hole groove, and by adjusting the length of each embedded column 10 protruding from the same embedded block 6, the special-shaped surface of each special-shaped workpiece can be clamped.

[0027] The hole seat 7 is a second screw hole, and the fastening section 11 is screwed and fixed to the second screw hole; during installation, the embedded column 10 and the embedded block 6 can be directly screwed together to complete the assembly, and the protruding length of the embedded column 10 can be adjusted according to the screw-in depth.

[0028] The hole seat 7 is a convex hole, and the fastening section 11 is fixed to the large inner diameter end of the convex hole by heat shrinkage; the difference in thermal expansion coefficients between the embedded block 6 and the embedded column 10 is used to clamp the embedded column 10 strongly and with high precision; when installing and removing the embedded column 10, the embedded block 6 needs to be heated first, and when the embedded block 6 is heated, the embedded column 10 is embedded in the embedded block 6 or pushed out from the other end of the embedded block 6.

[0029] The conical section 12 is radially provided with a through hole 14 ; during installation and removal, the handle is inserted into the through hole 14 to facilitate embedding the embedded column 10 into the embedded block 6 .

[0030] A movable gap is set between the embedding block 6 and the slot 2; an adjusting bolt 15 is screwed on the end of the embedding block 6 away from the embedding column 10; the adjusting bolt 15 is pressed tightly against the inner side of the slot 2; the limiting bolt 9 includes an optical axis section; the optical axis section is slidably engaged with the through hole 8; the limiting bolt 9 is fastened to the first screw hole 5. During installation, the position of the embedding block 6 in the slot 2 can be adjusted by adjusting the adjusting bolt 15. After the adjustment is completed, the adjusted position can be locked by the limiting bolt 9.

[0031] The above embodiments are only preferred implementations of the present invention, so any equivalent changes or modifications made according to the structures, features and principles described in the scope of application of the present invention are included in the scope of application of the present invention.

Claims

1. A mounting claw, characterized in that: include: A claw body, wherein an H-shaped slot is provided at the front end of the claw body; claw teeth are formed integrally at the top and bottom of the slot respectively; a rack is formed integrally at the bottom of the claw body for movably engaging with the chuck; a first screw hole is formed inside the slot; The insert block; the insert block is movably connected to the inner side of the slot from the side of the claw body; a plurality of hole seats are provided on the insert block; a through hole is provided at the center of the insert block; a limiting bolt is provided inside the through hole, and the limiting bolt is fastened to the first screw hole; The embedded column is fixed on the embedded block; the embedded column includes a fastening section fixed to the hole seat, the front end of the fastening section is integrally formed with a tapered section, and the front end of the tapered section is integrally formed with a positioning head.

2. The setting claw according to claim 1, characterized in that: The hole seat is a second screw hole, and the fastening section is screwed and fixed to the second screw hole.

3. The setting claw according to claim 1, characterized in that: The hole seat is a convex hole, and the fastening section is fixed to the large inner diameter end of the convex hole by heat shrink fitting.

4. The setting claw according to claim 1, characterized in that: The conical section is radially provided with through holes.

5. The setting claw according to claim 1, characterized in that: A movable gap is set between the embedding block and the slot; an adjusting bolt is screwed on one end of the embedding block away from the embedding column; the adjusting bolt is pressed tightly against the inner side of the slot; the limiting bolt includes an optical axis section; the optical axis section is slidably engaged with the through hole; and the limiting bolt is fastened to the first screw hole.

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