A PCD insert for mounting and fastening

Abstract

The utility model relates to the technical field of PCD blades, and specifically to an installed and fastened PCD blade, comprising a shank body, a fastener and a cutting portion respectively arranged at the front end of the shank body, an inwardly recessed installation cavity arranged on the top end surface of the cutting portion, a first connecting hole screwed to a fixing screw arranged on the top end surface of the installation cavity, fixing grooves symmetrically arranged on both sides of the top end surface of the installation cavity on both sides of the first connecting hole, a fastening groove connected to the first connecting hole arranged in the shank body between the two fixing grooves, a PCD blade with a rectangular structure detachably arranged in the installation cavity, a through hole for inserting the fixing screw arranged through the PCD blade, fixing blocks which can be inserted into the fixing grooves symmetrically arranged on both sides of the bottom end surface of the PCD blade, a docking groove arranged through the fixing block, and the tightness of the PCD blade installed on the shank body is improved by matching the connecting groove, the docking groove, the fastening groove and the fastener.

Description

Technical Field

[0001] The utility model relates to the technical field of PCD blades, in particular to an installed and fastened PCD blade. Background Art

[0002] Cutting tools are an indispensable and important tool in cutting processing. Whether it is an ordinary machine tool or an advanced numerical control machine tool (NC), machining center (MC) and flexible manufacturing system (FMC), cutting tools are required to complete cutting processing. The development of cutting tools has an important impact on improving productivity and processing quality. Cutting tool material, cutting tool structure and geometric shape are the three factors that determine the cutting performance of cutting tools, among which the performance of cutting tool material plays a key role. The existing PCD blade is installed on the tool rod relatively loosely, which makes the connection between the PCD blade and the tool rod not tight enough, which is easy to cause damage to the blade and affect the turning quality and turning efficiency. Utility Model Content

[0003] The utility model aims to provide a PCD blade that is firmly installed to address the defects of the prior art, so as to solve the problem that the existing PCD blade is loosely installed on the tool rod, resulting in insufficient tightness between the PCD blade and the tool rod, which easily causes damage to the blade and affects the turning quality and turning efficiency.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A PCD blade for installation and fastening, comprising a shank body, a fastener and a cutting part are respectively provided at the front end of the shank body, an inwardly recessed installation cavity is provided on the top end surface of the cutting part, a first connecting hole screwed to a fixing screw is provided on the top end surface of the installation cavity, fixing grooves are symmetrically provided on both sides of the top end surface of the installation cavity on both sides of the first connecting hole, a fastening groove connected to the first connecting hole is provided in the shank body between the two fixing grooves, a PCD blade with a rectangular structure is detachably provided in the installation cavity, a through hole for the fixing screw to be inserted is provided through the PCD blade, fixing blocks that can be inserted into the fixing grooves are symmetrically provided on both sides of the bottom end surface of the PCD blade, and a docking groove is provided through the fixing block;

[0006] The fastener comprises a connecting plate, and docking posts which can be inserted into the docking grooves are symmetrically arranged on both sides of the connecting plate. A fastening post which can be inserted into the fastening grooves is arranged on the connecting plate between the two docking posts, and a second connecting hole which is connected with the first connecting hole is penetrated through the fastening post.

[0007] As a preferred technical solution of the utility model, one side of the front end of the arbor body can be provided with a connecting groove for a connecting plate to be clamped, and the connecting groove is communicated with the fixing groove and the fastening groove.

[0008] As a preferred technical solution of the present invention, the connecting plate, the docking column and the fastening column are an integrally formed structure.

[0009] As a preferred technical solution of the utility model, the through hole is a countersunk hole.

[0010] As a preferred technical solution of the utility model, pressure relief grooves are provided at right-angle connection points on both end surfaces inside the installation cavity.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model arranges a fixing block at the bottom of the PCD blade, so that the PCD blade installed on the tool bar body can be limited and fixed, thereby improving the stability of the PCD blade installed on the tool bar body. The connection groove, the docking groove, the fastening groove and the fastener are arranged in coordination, thereby improving the tightness of the PCD blade installed on the tool bar body, avoiding the problem that the connection tightness between the PCD blade and the tool bar body is not enough, affecting the turning quality and turning efficiency. The decompression groove is arranged, thereby avoiding the damage of the tip of the PCD blade due to vibration during processing. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 It is a structural schematic diagram of the shank body of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the PCD blade of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the fastener of the utility model;

[0017] In the figure: 1. arbor body; 101. cutting part; 102. mounting cavity; 103. first connecting hole; 104. fixing groove; 105. connecting groove; 106. pressure relief groove; 2. PCD blade; 201. through hole; 202. fixing block; 203. docking groove; 3. fastener; 301. connecting plate; 302. docking column; 303. fastening column; 304. second connecting hole; 4. fixing screw. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0019] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] Example

[0021] Combination Figure 1-4 As shown, a PCD blade for installation and fastening comprises a shank body 1, a fastener 3 and a cutting portion 101 are respectively provided at the front end of the shank body 1, an inwardly recessed installation cavity 102 is provided on the top end surface of the cutting portion 101, a first connecting hole 103 screwed to a fixing screw 4 is provided on the top end surface of the installation cavity 102, fixing grooves 104 are symmetrically provided on both sides of the top end surface of the installation cavity 102 on both sides of the first connecting hole 103, a fastening groove connected to the first connecting hole 103 is provided in the shank body 1 between the two fixing grooves 104, a PCD blade 2 with a rectangular structure is detachably provided in the installation cavity 102, and the size of the PCD blade 2 is slightly larger than the size of the installation cavity 102, so that the tip of the PCD blade 2 is exposed outside the installation cavity 102, thereby facilitating cutting processing.

[0022] Among them, one side of the front end of the tool rod body 1 can be provided with a connecting groove 105 for the connecting plate 301 to be clamped, and the connecting groove 105 is connected with the fixing groove 104 and the fastening groove. Through the matching arrangement of the connecting groove 105, the docking groove 203, the fastening groove and the fastener 3, the tightness of the PCD blade 2 installed on the tool rod body 1 is improved, thereby avoiding the problem that the connection tightness between the PCD blade 2 and the tool rod body 1 is not enough, affecting the turning quality and turning efficiency.

[0023] The right-angle connection points of the two end surfaces inside the installation cavity 102 are provided with pressure relief grooves 106 , and the provision of the pressure relief grooves 106 can prevent the tip of the PCD insert 2 from being damaged due to vibration during processing.

[0024] like Figure 3The PCD blade 2 shown in the figure is provided with a through hole 201 for the fixing screw 4 to be inserted, and the through hole 201 is a countersunk hole. The bottom end surface of the PCD blade 2 is symmetrically provided with fixing blocks 202 that can be inserted into the fixing groove 104. By setting the fixing block 202 at the bottom of the PCD blade 2, the PCD blade 2 installed on the tool rod body 1 can be limited and fixed, thereby improving the stability of the PCD blade 2 installed on the tool rod body 1. A docking groove 203 is provided on the fixing block 202.

[0025] like Figure 4 The fastener 3 shown includes a connecting plate 301, and docking posts 302 that can be inserted into the docking groove 203 are symmetrically provided on both sides of the connecting plate 301. A fastening post 303 that can be inserted into the fastening groove is provided on the connecting plate 301 between the two docking posts 302. A second connecting hole 304 that is connected to the first connecting hole 103 is penetrated by the fastening post 303, and the second connecting hole 304 and the first connecting hole 103 are internal threaded holes with the same structural size.

[0026] The connecting plate 301 , the docking column 302 and the fastening column 303 are an integrally formed structure, thereby improving the overall strength and service life of the fastener 3 .

[0027] The working principle and use process of this utility model:

[0028] When in use, first align the fixing block 202 at the bottom of the PCD blade 2 with the fixing groove 104 in the installation cavity 102 for press-fitting, so that the PCD blade 2 is installed in the installation cavity 102. At this time, the through hole 201 on the PCD blade 2 is connected with the first connecting hole 103 on the bottom end surface of the installation cavity 102. Then, the fastener 3 is inserted from the end of the shank body 1 with the connecting groove 105, and the fastening column 303 on the fastener 3 is aligned with the fastening groove on the shank body 1 for insertion. At the same time, the docking columns 302 on both sides of the fastening column 303 are inserted into the docking The PCD insert 2 is tightly mounted on the shank body 1 by inserting the fixing screw 4 into the through hole 201, the first connecting hole 103 and the second connecting hole 304, so that the PCD insert 2 is tightly mounted on the shank body 1, thereby avoiding the problem that the connection between the PCD insert 2 and the shank body 1 is not tight enough, which affects the turning quality and turning efficiency.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A PCD insert for mounting and fastening, comprising a tool bar body (1), characterized in that: The front end of the shank body (1) is provided with a fastener (3) and a cutting portion (101), the top end surface of the cutting portion (101) is provided with an inwardly recessed mounting cavity (102), the top end surface of the mounting cavity (102) is provided with a first connecting hole (103) threadedly connected to a fixing screw (4), the top end surface of the mounting cavity (102) on both sides of the first connecting hole (103) is symmetrically provided with fixing grooves (104), and the shank between the two fixing grooves (104) is provided with a fixing groove (104). A fastening groove connected to the first connecting hole (103) is provided in the body (1); a PCD blade (2) in a rectangular structure is detachably provided in the installation cavity (102); a through hole (201) is provided through the PCD blade (2) for the fixing screw (4) to pass through; fixing blocks (202) that can be plugged into the fixing groove (104) are symmetrically provided on both sides of the bottom end surface of the PCD blade (2); a docking groove (203) is provided through the fixing block (202); The fastener (3) comprises a connecting plate (301), and docking posts (302) capable of being plugged into the docking groove (203) are symmetrically provided on both sides of the connecting plate (301); a fastening post (303) capable of being plugged into the fastening groove is provided on the connecting plate (301) between the two docking posts (302); and a second connecting hole (304) communicating with the first connecting hole (103) is penetrated through the fastening post (303).

2. A PCD insert mounted and fastened according to claim 1, characterized in that: One side of the front end of the knife rod body (1) is provided with a connecting groove (105) for the connecting plate (301) to be clamped, and the connecting groove (105) is connected to the fixing groove (104) and the fastening groove.

3. A PCD insert mounted and fastened according to claim 1, characterized in that: The connecting plate (301), the docking column (302) and the fastening column (303) are an integrally formed structure.

4. A mounted and fastened PCD insert according to claim 1, characterized in that: The through hole (201) is a countersunk hole.

5. A PCD insert mounted and fastened according to claim 1, characterized in that: Decompression grooves (106) are provided at right-angle connection points on both end surfaces inside the installation cavity (102).

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