Clamping type PCD cutter

Abstract

The utility model discloses a clamping type PCD cutter, and relates to the field of PCD cutters, the clamping type PCD cutter comprises a cutter head and a cutter bar, the cutter head and the cutter bar are axially staggered and attached, the attaching part of the cutter bar is rotatably provided with a clamping handle, the attaching part of the cutter head is provided with a clamping groove, the surface of the cutter bar is provided with a thread sleeve in a threaded mode, the thread sleeve wraps the staggered part of the cutter head and the cutter bar, and the thread sleeve extrudes the clamping handle to be clamped into the clamping groove. The tool bit and the tool bar are aligned in an axial staggered attaching mode, the tool bit and the tool bar are connected into a whole in a clamping mode in cooperation with wrapping of the threaded sleeve and clamping connection of the clamping handle and the clamping groove, the blade is convenient and fast to disassemble when replaced, and only the tool bit and the blade need to be replaced. The cutter bar serving as an installation foundation of the cutter can be repeatedly used, and resource waste is reduced.

Description

Technical Field

[0001] The utility model relates to the field of PCD tools, in particular to a clamping type PCD tool. Background Art

[0002] A PCD tool is composed of a blade made of superhard material and a tool body integrated with a metal material. The blade is fixedly combined at the end of the tool body, and the tool body is integrally processed. The tool body has a head for installing the blade and a connection end for connecting to a machine tool. When the blade fails, the entire tool needs to be replaced together with the tool body, which not only causes waste of resources but also results in a relatively high input cost for the tool. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a clamping type PCD tool, and solve the following technical problems: how to make the blade part and the tool body be detachably combined, so that when replacing the blade, there is no need to replace the tool body, reducing the cost investment.

[0004] To solve the problems existing in the prior art, the technical solution adopted by the utility model is as follows:

[0005] A clamping type PCD tool includes a tool head and a tool shank. The tool head and the tool shank are axially staggered and attached to each other. A clamping handle is rotatably arranged at the attaching part of the tool shank. A clamping groove is arranged at the attaching part of the tool head. A screw sleeve is arranged on the surface of the tool shank in a threaded manner. The screw sleeve covers the staggered part of the tool head and the tool shank, and the screw sleeve presses the clamping handle into the clamping groove, so that the tool head and the tool shank are connected into one body.

[0006] Preferably, a chamfer is arranged at the top angle of the clamping handle.

[0007] Preferably, a groove is arranged at the end of the tool shank, and a convex block is arranged at the end of the tool head. The convex block is axially inserted into the groove, so that the staggered attaching part of the tool head and the tool shank forms a cylindrical shape.

[0008] Preferably, one side of the end of the tool shank has a first semi-cylinder, and one side of the end of the tool head has a second semi-cylinder. The first semi-cylinder is attached to the second semi-cylinder, so that the staggered attaching part of the tool head and the tool shank forms a cylindrical shape.

[0009] Preferably, a slot is arranged at the end of the tool shank, and a plug is fixed at the end of the tool head. The plug is axially inserted and matched with the slot.

[0010] Preferably, the matching cross-section of the slot and the plug is polygonal.

[0011] Compared with the related art, the utility model has the following beneficial effects:

[0012] The utility model aligns the tool bit and the tool rod through an axially misaligned fitting method, and cooperates with the wrapping of the screw sleeve and the clamping connection between the clamping handle and the clamping groove, so that the tool bit and the tool rod are integrally connected in a clamped manner. When replacing the blade, the disassembly is convenient, and only the tool bit and the blade need to be replaced. The tool rod, as the installation basis of the tool, can be reused, reducing resource waste. Brief Description of the Drawings

[0013] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 is a schematic cross-sectional view of Embodiment 1 of the utility model;

[0015] Figure 3 is a schematic cross-sectional view of Embodiment 2 of the utility model;

[0016] Figure 4 is a schematic cross-sectional view of Embodiment 3 of the utility model.

[0017] Reference numerals: 1, tool bit; 2, tool rod; 3, screw sleeve; 4, clamping handle; 5, clamping groove; 6, groove; 61, convex block; 7, first semi-cylinder; 71, second semi-cylinder; 8, slot; 81, inserting block. Detailed Description of the Embodiments

[0018] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following further details the utility model in conjunction with the drawings and embodiments.

[0019] Embodiment 1: As shown in Figure 1 、 Figure 2 , the clamping type PCD tool has a tool bit 1 and a tool rod 2. The hard alloy blade is integrated on the surface of the tool bit 1. A groove 6 is opened at the end of the tool rod 2. A convex block 61 is fixed at the end of the tool bit 1. The convex block 61 is axially inserted into the groove 6, so that the staggered fitting part of the tool bit 1 and the tool rod 2 forms a cylindrical shape. A clamping handle 4 is arranged on one side or both sides of the groove 6. One end of the clamping handle 4 away from the tool bit 1 is rotatably connected to the tool rod 2. The inner side of the clamping handle 4 is a protruding insertion part. The surface of the convex block 61 has a clamping groove 5 adapted to the insertion part of the clamping handle 4. A screw sleeve 3 is threadedly installed outside the tool rod 2;

[0020] When assembling the tool, the convex block 61 is axially inserted into the groove 6, so that the tool bit 1 and the tool rod 2 are axially staggered and fitted. Then, the screw sleeve 3 is rotated and moved towards the tool bit 1, so that the screw sleeve 3 wraps the fitting part of the tool bit 1 and the tool rod 2. By the inner wall of the screw sleeve 3 extruding the outside of the clamping handle 4, the clamping handle 4 is deflected inwards, and the insertion part of the clamping handle 4 is clamped into the clamping groove 5, axially locking and connecting the tool bit 1 and the tool rod 2 in a clamped manner. When the blade is damaged, only the screw sleeve 3 needs to be rotated and moved to release the clamping of the clamping handle 4 to the clamping groove 5, and the convex block 61 is pulled out of the groove 6, and the tool bit 1 and the blade are replaced. The tool rod 2 part can be reused.

[0021] The insertion part of the top corner of the handle 4 of the card is provided with a chamfer, which is convenient for the convex block 61 to push open the handle 4 of the card when inserting into the groove 6.

[0022] Embodiment 2: As Figure 3 shown, one side of the end of the tool bar 2 is integrally fixed with the first semi-cylinder 7, and the other side of the end of the tool bit 1 is integrally fixed with the second semi-cylinder 71. The handle 4 of the card is rotatably installed on the surface of the first semi-cylinder 7, and the card slot 5 is opened on the surface of the second semi-cylinder 71. The first semi-cylinder 7 and the second semi-cylinder 71 are fitted together so that the staggered fitting part of the tool bit 1 and the tool bar 2 forms a cylindrical shape. The rotating sleeve 3 is moved to the outside of the first semi-cylinder 7 and the second semi-cylinder 71. The inner wall of the sleeve 3 presses against the outer wall of the handle 4 of the card, so that the handle 4 of the card is stuck into the card slot 5, and the tool bit 1 and the tool bar 2 are fixedly connected in a clamped manner. Similarly, when replacing the blade, rotate and move the sleeve 3 to separate the tool bit 1 and the tool bar 2, and the tool bit 1 and the blade can be replaced separately.

[0023] Embodiment 3: As Figure 4 shown, a slot 8 is opened at the end of the tool bar 2, and a plug 81 is fixed at the end of the tool bit 1. The plug 81 is axially adapted and inserted into the slot 8. The adapted cross-section of the slot 8 and the plug 81 is polygonal, such as quadrilateral, hexagon, etc. The handle 4 of the card is rotatably installed on the side of the slot 8, and the card slot 5 is opened on the side of the plug 81. Rotate and move the sleeve 3, and the inner wall of the sleeve 3 presses against the outer wall of the handle 4 of the card, so that the handle 4 of the card is stuck into the card slot 5, and the tool bit 1 and the tool bar 2 are fixedly connected in a clamped manner. Similarly, when replacing the blade, rotate and move the sleeve 3 to separate the tool bit 1 and the tool bar 2, and the tool bit 1 and the blade can be replaced separately.

[0024] 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 clamping PCD tool, characterized in that: include: The cutter head (1) and the cutter rod (2) are axially staggered and fitted together, a clamping handle (4) is rotatably arranged on the fitting portion of the cutter rod (2), a clamping groove (5) is arranged on the fitting portion of the cutter head (1), a threaded sleeve (3) is arranged on the surface of the cutter rod (2), the threaded sleeve (3) is covered on the staggered portion of the cutter head (1) and the cutter rod (2), and the threaded sleeve (3) squeezes the clamping handle (4) and clamps it into the clamping groove (5), so that the cutter head (1) and the cutter rod (2) are connected as one.

2. The clamped PCD tool according to claim 1, characterized in that: The top corner of the clamping handle (4) is provided with a chamfer.

3. The clamped PCD tool according to claim 1, characterized in that: The end of the knife rod (2) is provided with a groove (6), and the end of the knife head (1) has a convex block (61), which is axially inserted into the groove (6) so that the staggered fitting part of the knife head (1) and the knife rod (2) forms a cylindrical shape.

4. The clamped PCD tool according to claim 1, characterized in that: The end of the knife rod (2) has a first semicircular body (7), and the end of the knife head (1) has a second semicircular body (71). The first semicircular body (7) and the second semicircular body (71) fit together so that the interlaced fitting parts of the knife head (1) and the knife rod (2) form a cylindrical shape.

5. The clamped PCD tool according to claim 1, characterized in that: A slot (8) is provided at the end of the knife rod (2), and an insert block (81) is fixed to the end of the knife head (1), wherein the insert block (81) is axially adapted to be inserted into the slot (8).

6. The clamped PCD tool according to claim 5, characterized in that: The matching cross-sections of the slot (8) and the insert block (81) are polygonal.

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