CN217371931U

CN217371931U - Polycrystalline cubic boron nitride cutter grain grinding fixture

Info

Publication number: CN217371931U
Application number: CN202220997329.XU
Authority: CN
Inventors: 李剑; 郭增印; 郑晓迪; 王素卫; 司朝君
Original assignee: Zhengzhou Vantrans Smart Manufacturing Technology Co ltd
Current assignee: Zhengzhou Vantrans Smart Manufacturing Technology Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-09-06
Anticipated expiration: 2032-04-27

Abstract

The utility model discloses a glomerocryst cubic boron nitride sword grain grinding anchor clamps, including anchor clamps main part, locating plate and clamp plate, the locating plate sets up the one end in the anchor clamps main part, the locating plate can be dismantled with the anchor clamps main part and be connected, one side of locating plate is provided with the assembly recess that holds grinding sword grain, the top of locating plate is provided with the clamp plate of pressing down at the inside grinding sword grain that lies in the assembly recess, the middle part and the support frame of setting in the anchor clamps main part of clamp plate rotate to be connected, the cylindric lock level of setting on the support frame passes the middle part of clamp plate, the one end that grinding sword grain was kept away from to the clamp plate is pressed down on grinding sword grain with the vertical crew cut annular knurl screw threaded connection that passes the clamp plate, rotation through the crew cut screw guarantees that the clamp plate is close to the one end of grinding sword grain and presses down on grinding sword grain, in a word the utility model discloses have the commonality, adapt to different size grinding sword grain change easy operation convenient, The grinding efficiency is improved and the grinding precision is increased.

Description

Polycrystalline cubic boron nitride cutter grain grinding fixture

Technical Field

The utility model relates to a technical field of glomerocryst cubic boron nitride cutter processing equipment especially relates to a glomerocryst cubic boron nitride cutter grain grinding anchor clamps.

Background

Polycrystalline cubic boron nitride is a novel artificially synthesized material developed in the 50 s of the 20 th century, has high hardness and good wear resistance, and is widely applied to the mechanical processing industry, the grinding performance of a cubic boron nitride grinding tool is very excellent, the cubic boron nitride grinding tool not only can be used for processing wear-resistant materials, the productivity is improved, but also is beneficial to strictly controlling the shape and the size precision of a workpiece, the grinding quality of the workpiece can be effectively improved, the surface integrity of the ground workpiece is obviously improved, and meanwhile, the cubic boron nitride grinding material production process is better than the production of a common grinding material in the aspects of energy consumption and environmental pollution, so the expansion of the production and the application of the cubic boron nitride grinding tool is a necessary trend of the mechanical industry development; because of the characteristics of polycrystalline cubic boron nitride, the polycrystalline cubic boron nitride has excellent performance in the aspect of being used as a material for processing hardened iron group metals and alloy cutters, cutters prepared from polycrystalline cubic boron nitride in the actual use process usually comprise two forms of integral PCBN and welded PCBN cutters, particularly welded PCBN cutters, and are widely applied in recent years due to the advantage of low material cost.

The welding type PCBN blade is generally required to be cut into tool grains by PCBN or PCBN composite sheets in the machining process, then the tool grains are welded to a hard alloy matrix in a brazing mode for use, and finally grinding is carried out to finally manufacture a finished PCBN blade; in the process of machining welded PCBN blades, conventional blade grain production is generally used for cutting by laser or wire cutting, the cut section is usually grinded and cleaned before being brazed on an alloy matrix, but simultaneously, because the thickness of the knife grain used by the PCBN blade in the structure form of the I-shaped welding is small (the thickness of the composite sheet is usually less than 2mm), the shape of the knife grain is generally trapezoidal, so the clamp is difficult to clamp and fix, and meanwhile, if the shape of the cutter particles changes, the clamp cannot be timely adjusted, and the clamp cannot be timely adjusted to be suitable for machining the cutter particles with different shapes, meanwhile, the existing traditional knife grain grinding mode mainly adopts the manual hand-held knife grain grinding, therefore, the technical problems of poor grinding precision, low grinding efficiency, high labor intensity of workers and incapability of ensuring the welding quality of the subsequent blade still exist in the using process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a glomerocryst cubic boron nitride sword grain grinding anchor clamps, solve that the grinding precision that exists is poor among the prior art, workman intensity of labour is big, inconvenient cutting irregularly shaped sword grain and can't carry out the technical problem that anchor clamps adjusted according to sword grain shape.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a polycrystalline cubic boron nitride sword grain grinding anchor clamps, including the anchor clamps main part, locating plate and clamp plate, the locating plate sets up the one end in the anchor clamps main part, the locating plate can be dismantled with the anchor clamps main part and be connected, one side of locating plate is provided with the assembly recess that holds grinding sword grain, the top of locating plate is provided with presses down the clamp plate at the inside grinding sword grain that is located the assembly recess, the middle part and the support frame that sets up in the anchor clamps main part of clamp plate rotate to be connected, the middle part that the cylindric lock level of setting on the support frame passed the clamp plate, the clamp plate is kept away from the one end of grinding sword grain and is vertically passed the annular knurl crew cut screw threaded connection of clamp plate, the rotation through annular knurl crew cut screw is guaranteed that the clamp plate is close to the one end of grinding sword grain and is pressed on the grinding sword grain.

Preferably, the depth of the assembling groove in the positioning plate is smaller than the width of the cutter particles, the width of the assembling groove in the positioning plate is larger than the length of the cutter particles, and the surface to be ground of the cutter particles conveniently extends out of the assembling groove.

Preferably, the end of the clamp body is provided with a clamp groove connected with the positioning plate in a matching manner, the clamp groove is recessed downwards from the top of the clamp body, the positioning plate is provided with a cross groove countersunk screw vertically penetrating through the positioning plate, the lower end of the cross groove countersunk screw penetrates through the bottom of the clamp groove and goes deep into the clamp body, and the lower end of the cross groove countersunk screw is in threaded connection with the clamp body.

Preferably, the support frame is fixedly connected with the clamp main body, one end, close to the grinding cutter grains, of the pressing plate is bent downwards, the grinding cutter grains are conveniently fixed through the pressing plate under the driving of one end, far away from the grinding cutter grains, of the pressing plate, and the cross-shaped groove countersunk head screw is arranged below the pressing plate.

Preferably, the cross recessed countersunk head screw is arranged on one side of the support frame away from the assembling groove, and the lower end of the cross recessed countersunk head screw abuts against the upper surface of the clamp body.

Preferably, the cylindrical pin is arranged at the upper part of the support frame and is rotatably connected with the middle part of the pressure plate.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model discloses an anchor clamps main part supports and restricts the locating plate, come the position of restriction grinding sword grain through the assembly recess on the locating plate, come to fix grinding sword grain through the clamp plate, through the support frame, clamp plate and knurling crew cut screw make the clamp plate form lever structure, rotation through knurling crew cut screw, come the height at adjusting plate both ends, convenient and fast more, whole simple structure fixed to grinding sword grain, and convenient for operation can realize the firm centre gripping of small-size grinding sword grain, the sword grain face of weld tapering problem of avoiding manual grinding to bring, effectual improvement grinding precision.

(2) The utility model discloses an anchor clamps main part, the tool grinder cooperation of being convenient for and different is used, through the connection of dismantling of locating plate and anchor clamps main part, can connect different assembly recess, is applicable to the not sword grain of equidimension, accomplishes the grinding back at the grinding sword grain of the same type moreover, can be quick through the quick change grinding sword grain of annular knurl crew cut screw, improves grinding efficiency height.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of the connection between the positioning plate and the main body of the clamp of the present invention;

FIG. 4 is a schematic structural view of the assembly groove and the positioning plate of the present invention (with the pressing plate removed);

fig. 5 is a schematic diagram of the connection between the clamp groove and the clamp body (the positioning plate, the pressing plate and the cylindrical pin are removed).

In the figure: 1. a clamp body; 2. positioning a plate; 3. pressing a plate; 4. assembling a groove; 5. a support frame; 6. a cylindrical pin; 7. a knurled flat-head screw; 8. a clamp groove; 9. a cross recessed countersunk flat head screw.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1:

referring to fig. 1-5, a polycrystalline cubic boron nitride cutter grain grinding fixture comprises a fixture main body 1, a positioning plate 2 and a pressing plate 3, wherein the positioning plate 2 is arranged at one end of the fixture main body 1, the positioning plate 2 is detachably connected with the fixture main body 1, and an assembling groove 4 for accommodating grinding cutter grains is formed in one side of the positioning plate 2. The end of the clamp main body 1 is provided with a clamp groove 8 connected with the positioning plate 2 in a matching manner, the clamp groove 8 is recessed downwards from the top of the clamp main body 1, the positioning plate 2 is provided with a cross groove countersunk screw 9 vertically penetrating through the positioning plate 2, and the lower end of the cross groove countersunk screw 9 penetrates through the bottom of the clamp groove 8 and penetrates into the clamp main body 1. The two cross recessed countersunk head screws 9 are uniformly distributed on the positioning plate 2, the fixing of the positioning plate 2 is further strengthened, and the lower ends of the two cross recessed countersunk head screws 9 are in threaded connection with mounting threaded holes which penetrate into the clamp body 1 and correspond to the cross recessed countersunk head screws 9. Two cross recessed countersunk head screws 9 are all arranged on one side of the support frame 5 far away from the assembly groove 4, and the lower ends of the cross recessed countersunk head screws 9 are abutted against the upper surface of the clamp body 1. The depth of the assembling groove 4 in the positioning plate 2 is smaller than the width of the knife grain, the width of the assembling groove 4 in the positioning plate 2 is larger than the length of the knife grain, and the surface to be ground of the knife grain conveniently extends out of the assembling groove 4.

The top of locating plate 2 is provided with presses down the clamp plate 3 at the inside grinding tool grain that is located assembly groove 4, the middle part of clamp plate 3 rotates with the support frame 5 that sets up on anchor clamps main part 1 to be connected, the middle part that the cylindric lock 6 level that sets up on support frame 5 passed clamp plate 3, clamp plate 3 keeps away from the one end of grinding tool grain and the vertical knurling crew cut screw 7 threaded connection who passes clamp plate 3, the rotation through knurling crew cut screw 7 guarantees that the one end that clamp plate 3 is close to the grinding tool grain is pressed on the grinding tool grain. The supporting frame 5 is fixedly connected with the clamp main body 1, one end of the pressing plate 3, which is close to the grinding cutter grains, is bent downwards, so that the grinding cutter grains are conveniently fixed through the pressing plate 3 under the driving of one end of the pressing plate 3, which is far away from the grinding cutter grains, and the cross-recessed countersunk head screw 9 is arranged below the pressing plate 3; the cylindric lock 6 sets up in the upper portion of support frame 5, and cylindric lock 6 rotates with the middle part of clamp plate 3 to be connected.

The utility model discloses in the use, on the fixed instrument grinding machine that corresponds of anchor clamps main part 1 during use, then use cross countersunk head screw to install locating plate 2 on anchor clamps main part 1, use cylindric lock 6 to install clamp plate 3 on support frame 5, then with the vertical clamp plate 3 that passes of annular knurl grub screw 7, install on clamp plate 3, the grinding tool grain that will wait to grind at last is placed in the assembly recess 4 of locating plate 2, adjust annular knurl grub screw 7 and make clamp plate 3 compress tightly the tool grain and can carry out the grinding, only need adjust annular knurl grub screw 7 when the grinding is accomplished, change the operation of grinding tool grain or change grinding tool grain grinding face, when needing to process not unidimensional grinding tool grain, only need to change different locating plates 2, thereby the installation has the locating plate 2 of suitable assembly recess 4, can process different grinding tool grain, in a word the utility model has the commonality is strong, The grinding tool grain grinder has the advantages of being suitable for grinding tool grains with different sizes, being simple and convenient to replace and operate, improving grinding efficiency and increasing grinding precision.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto.

Claims

1. The utility model provides a polycrystalline cubic boron nitride sword grain grinding anchor clamps which characterized in that: comprises a clamp main body (1), a positioning plate (2) and a pressing plate (3), the positioning plate (2) is arranged at one end of the clamp main body (1), the positioning plate (2) is detachably connected with the clamp main body (1), one side of the positioning plate (2) is provided with an assembling groove (4) for accommodating grinding cutter particles, the pressing plate (3) which presses the grinding cutter particles positioned in the assembling groove (4) is arranged above the positioning plate (2), the middle part of the pressing plate (3) is rotatably connected with a supporting frame (5) arranged on the clamp main body (1), a cylindrical pin (6) arranged on the supporting frame (5) horizontally penetrates through the middle part of the pressing plate (3), one end of the pressing plate (3) far away from the grinding cutter particles is in threaded connection with a knurled flat head screw (7) which vertically penetrates through the pressing plate (3), the end of the pressing plate (3) close to the grinding cutter particles is pressed on the grinding cutter particles through the rotation of the knurled flat head screw (7).

2. The polycrystalline cubic boron nitride cutter grinding fixture of claim 1, wherein: the depth of the assembling groove (4) in the positioning plate (2) is smaller than the width of the knife particles, the width of the assembling groove (4) in the positioning plate (2) is larger than the length of the knife particles, and the surface to be ground of the knife particles conveniently extends out of the assembling groove (4).

3. The polycrystalline cubic boron nitride cutter grinding fixture of claim 2, wherein: the clamp is characterized in that a clamp groove (8) which is connected with a positioning plate (2) in a matched mode is formed in the end portion of the clamp body (1), the clamp groove (8) is recessed downwards from the top of the clamp body (1), a cross groove countersunk screw (9) which vertically penetrates through the positioning plate (2) is arranged on the positioning plate (2), the lower end of the cross groove countersunk screw (9) penetrates through the bottom of the clamp groove (8) to penetrate into the clamp body (1), and the lower end of the cross groove countersunk screw (9) is in threaded connection with the clamp body (1).

4. The polycrystalline cubic boron nitride cutter grinding fixture of claim 3, wherein: support frame (5) and anchor clamps main part (1) fixed connection, clamp plate (3) are close to the one end of grinding sword grain and are buckled downwards, conveniently keep away from grinding sword grain's one end in clamp plate (3) and drive down through clamp plate (3) fixed to grinding sword grain, cross recess countersunk screw (9) set up the below at clamp plate (3).

5. The polycrystalline cubic boron nitride cutter grinding fixture of claim 4, wherein: the cross recessed countersunk head screw (9) is arranged on one side, far away from the assembly groove (4), of the support frame (5), and the lower end of the cross recessed countersunk head screw (9) abuts against the upper surface of the clamp main body (1).

6. The polycrystalline cubic boron nitride cutter particle grinding jig according to any one of claims 1 to 5, characterized in that: the cylindrical pin (6) is arranged on the upper portion of the support frame (5), and the cylindrical pin (6) is rotatably connected with the middle of the pressing plate (3).