PCD cutter rounding equipment and process

Abstract

The invention relates to PCD cutter rounding equipment and technology, and relates to the field of cutter machining, and the PCD cutter rounding equipment comprises a rack, a clamping assembly and a locking assembly; the rack is connected with two clamping assemblies, the two clamping assemblies are symmetrically arranged relative to a reference plane, the reference plane is perpendicular to the first direction, and at least one clamping assembly is slidably connected to the rack in the first direction; the clamping assembly comprises a clamping plate and a plurality of clamping rods, and the clamping plate is arranged perpendicular to the first direction; the clamping rod penetrates through the clamping plate in the first direction and is slidably connected to the clamping plate in the first direction. The ends, close to the other clamping assembly, of the clamping rods in each clamping assembly are clamping ends, and the multiple clamping rods are distributed on the clamping plate in a matrix mode. The locking assembly is used for fixing the clamping rod to a clamping plate; in the first direction, a clamping gap is formed between the clamping ends of the clamping rods in the two clamping assemblies. The tool clamping device has the effect of firmly clamping a tool with an uneven clamping surface.

Description

Technical Field

[0001] The present application relates to the field of tool processing, and in particular to a PCD tool blunting device and process. Background Art

[0002] PCD tools are widely used in many processing scenarios due to their excellent cutting performance. During the processing, PCD tools need to be aligned and blunted. During the blunting process, the tool needs to be clamped to facilitate the blunting operation.

[0003] In the traditional PCD tool rounding process, the common method is to use a simple fixture to fix the tool and then use a sandblasting device to perform the rounding process. These fixtures usually use a plate-like structure to clamp the tool.

[0004] However, the plate-like method is suitable for tools with flat clamping surfaces. For some tools, the clamping surfaces are uneven, and it is difficult to clamp the tools using the above-mentioned plate-like structure. Therefore, providing a device that can firmly clamp tools with uneven clamping surfaces is an urgent problem to be solved. Summary of the Invention

[0005] In order to firmly clamp a tool with an uneven clamping surface, the present application provides a PCD tool blunting device and process.

[0006] In the first aspect, the present application provides a CD tool blunting device, which adopts the following technical solution: A CD cutter blunting device includes a frame, a clamping assembly, and a locking assembly; The frame is connected to two clamping assemblies, the two clamping assemblies are symmetrically arranged about a reference plane, the reference plane is perpendicular to a first direction, and at least one of the clamping assemblies is slidably connected to the frame along the first direction; the clamping assembly includes: a clamping plate, the clamping plate being arranged perpendicular to the first direction; and A plurality of clamping rods, each of which is provided through the clamping plate along a first direction and is slidably connected to the clamping plate along the first direction; an end of the clamping rod in each clamping assembly that is close to another clamping assembly is a clamping end, and the plurality of clamping rods are distributed in a matrix on the clamping plate; The locking assembly is used to secure the clamping rod to the clamping plate; In the first direction, a clamping gap is formed between the clamping ends of the clamping rods in the two clamping assemblies.

[0007] By adopting the above-mentioned technical solution, two clamping assemblies that are symmetrically arranged and can slide along the first direction cooperate with multiple clamping rods distributed in a matrix and can slide along the first direction, which can adapt to tools with uneven surfaces and achieve better clamping of the tools. When in use, it is only necessary to slide the clamping rods at different positions along the clamping plate until they contact the clamping surface of the tool, and then fix the clamping rods to the clamping plate through the locking assembly, so as to improve the stability of the clamping, thereby being able to firmly clamp the tool with an uneven clamping surface.

[0008] Optionally, the plurality of clamping rods in each row are sequentially arranged along the second direction, and the plurality of rows of clamping rods are sequentially arranged along the third direction, a locking gap is formed between two adjacent rows of clamping rods, and the locking assembly is correspondingly provided in each of the locking gaps; The locking assembly comprises: a connecting seat, the connecting seat being fixedly connected to the clamping plate; and a locking rod, wherein the cross section of the locking rod along the second direction is elliptical, the length of the locking rod is parallel to the second direction, and in the third direction, the locking rod is located in the middle of the two rows of clamping rods; The locking rod is rotatably connected to the connecting seat around its own central axis; The side of the locking rod located on the long side of the ellipse is the abutting side, and during the rotation of the abutting side of the locking rod toward the clamping rod, the locking rod changes from the unlocking posture to the locking posture; When the locking rod is in a locking position, the abutting side of the locking rod abuts against the clamping rod to fix the clamping rod to the clamping plate; When the locking rod is in the unlocking posture, the abutting side of the locking rod is separated from the clamping rod.

[0009] By adopting the above technical solution, the locking rod is connected to the connecting seat by rotating around its own central axis. By rotating the locking rod, it can be switched between unlocked and locked positions, which can achieve flexible clamping of tools with different surface shapes and effective locking and unlocking of the clamping rod, facilitate the fixation of the tool, and improve the efficiency and stability of tool blunting operations.

[0010] Optionally, the system further includes a first drive assembly, wherein the first drive assembly includes: A drive shaft, the drive shaft is parallel to the third direction and is rotatably connected to the clamping plate around its own axis; A first bevel gear, wherein each end of the locking rod is coaxially fixedly connected to a first bevel gear; and Second bevel gears: a plurality of second bevel gears are coaxially fixedly connected to the drive shaft, and each of the first bevel gears is meshed with a corresponding second bevel gear.

[0011] By adopting the above technical solution, the driving shaft can drive multiple locking rods to rotate synchronously when rotating, making it convenient to operate the locking rods to switch between the unlocking posture and the locking posture, effectively improving work efficiency.

[0012] Optionally, the first driving component further includes: A first motor is connected between the driving shaft and the clamping plate to drive the driving shaft to rotate along the clamping plate.

[0013] By adopting the above technical solution, the first motor is connected between the drive shaft and the clamping plate, which can drive the drive shaft to rotate along the clamping plate, and then through the cooperation of the first bevel gear and the second bevel gear, drive multiple locking rods to rotate synchronously, thereby realizing rapid locking or unlocking of multiple clamping rods and improving operational efficiency.

[0014] Optionally, an elastic member is further included, wherein each of the clamping rods and the clamping plates is correspondingly connected with the elastic member, one end of the elastic member is fixedly connected to the clamping rod, and the other end is fixedly connected to the clamping plate; When the elastic member is in a deformed state in which the deformation can be restored, the elastic member has a force that drives the clamping rod to move toward the clamping gap.

[0015] By adopting the above technical solution, the clamping rod and the clamping plate are connected by an elastic member. When the elastic member is in a deformed state where it can recover its deformation, it can drive the clamping rod to move toward the clamping gap, thereby clamping the tool more firmly.

[0016] Optionally, a side wall of the clamping rod is provided with an avoidance groove, and the elastic member is located in the avoidance groove.

[0017] By adopting the above technical solution, the structural layout of the equipment can be optimized, the elastic member can be prevented from being affected by external interference during use and its normal operation, and it can be ensured that the elastic member can stably drive the clamping rod to move toward the clamping gap.

[0018] Optionally, a second drive assembly is further included, wherein both the clamping plates are slidably connected to the frame along the first direction, and the second drive assembly is used to drive the clamping plates to move along the first direction, and the second drive assembly includes: A bidirectional screw rod is parallel to the first direction and is rotatably connected to the frame around its own axis; and two threaded sections of the bidirectional screw rod are each correspondingly connected to one of the clamping plates.

[0019] By adopting the above technical solution, the bidirectional screw is rotated along the frame, and the bidirectional screw can drive the two clamping plates to move synchronously toward or away from each other along the first direction, thereby facilitating the adjustment of the clamping gap size to adapt to the clamping requirements of tools of different sizes.

[0020] Optionally, the outer peripheral wall of the locking rod is provided with an anti-slip layer By adopting the above technical solution, the friction between the locking rod and the clamping rod can be increased, so that the locking rod can be more stable when fixing the clamping rod to the clamping plate, thereby improving the locking force of the tool.

[0021] Optionally, a sandblasting assembly is further included, and the sandblasting assembly includes: gooseneck; and, Spray gun, one end of the gooseneck is fixedly connected to the frame, and the other end is fixedly connected to the spray gun.

[0022] By adopting the above technical solution, the position of the spray gun can be changed by twisting the gooseneck tube, so as to facilitate the sandblasting and rounding operation of the tool clamped by the clamping assembly.

[0023] In a second aspect, the present application provides a PCD tool rounding process, which adopts the following technical solution: A PCD tool rounding process, using the aforementioned rounding equipment to perform rounding, comprises the following steps: S1: Place the tool in the clamping gap and clamp the tool with two clamping components; S2: Use a spray gun to sandblast the tool to make it blunt.

[0024] By adopting the above technical solution, the tool can be clamped more firmly during the rounding process using the above-mentioned rounding equipment.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. A matrix of multiple clamping rods that can slide along a first direction is distributed on the clamping plate, which can achieve adaptive clamping of tools with uneven surfaces, preventing the tool from shifting or shaking during rounding, thereby improving the rounding accuracy and quality; 2. The locking assembly can fix the clamping rod to the clamping plate, making the tool clamp more secure; 3. Multiple locking rods can be driven to rotate synchronously by the first drive assembly, which facilitates the rapid locking or unlocking of the clamping rod and improves operational efficiency; BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 This is a schematic structural diagram of the clamping assembly in an embodiment of the present application; Figure 3 yes Figure 2 Enlarged view of part A; Figure 4 2 is a schematic structural diagram of a clamping plate and a locking rod in an embodiment of the present application; Figure 5 yes Figure 4Enlarged view of part B; Figure 6 This is a schematic structural diagram of a locking assembly in an embodiment of the present application; Figure 7 It is a structural diagram of the second drive component in an embodiment of the present application.

[0026] Explanation of the accompanying drawings: 1. Frame; 2. Sandblasting assembly; 21. Gooseneck; 22. Spray gun; 3. Clamping assembly; 31. Clamping plate; 311. Perforation; 32. Clamping rod; 321. Clamping end; 322. Avoidance groove; 323. Lug; 33. Clamping gap; 34. Locking gap; 4. Elastic member; 5. Locking assembly; 51. Connecting seat; 52. Locking rod; 521. Abutment side; 53. Anti-slip layer; 6. First drive assembly; 61. Drive shaft; 62. First bevel gear; 63. Second bevel gear; 64. First motor; 65. First mounting seat; 7. Second drive assembly; 71. Guide rod; 72. Bidirectional screw; 73. Second motor; 74. Second mounting seat. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-7 This application is further described in detail. For ease of description, this application introduces directional terms such as a first direction, a second direction, and a third direction to form a three-dimensional reference direction. The directional terms used, such as "a first direction, a second direction, and a third direction," can be specifically shown in the figure, where X represents the first direction, Y represents the second direction, and Z represents the third direction, and the first direction, the second direction, and the third direction are perpendicular to each other.

[0028] The embodiment of the present application discloses a PCD tool blunting device. Figure 1 The PCD tool blunting equipment includes a frame 1, a sandblasting assembly 2 and a clamping assembly 3; the frame 1 is a material box with an open top; the sandblasting assembly 2 can blast sand into the frame 1. Specifically, the sandblasting assembly 2 includes a gooseneck 21 and a spray gun 22. One end of the gooseneck 21 is fixedly connected to the frame 1, and the other end is fixedly connected to the spray gun 22. By twisting the gooseneck 21, the position of the spray gun 22 can be changed to facilitate sandblasting and blunting the tool clamped by the clamping assembly 3.

[0029] Reference Figure 2 and Figure 3 , two clamping assemblies 3 are connected to the frame 1, the two clamping assemblies 3 are symmetrically arranged about a reference plane, the reference plane is perpendicular to the first direction, and at least one clamping assembly 3 is slidably connected to the frame 1 along the first direction. In the present disclosure, both clamping assemblies 3 are slidably connected to the frame 1 along the first direction; The clamping assembly 3 includes a clamping plate 31 and a plurality of clamping rods 32. The clamping plate 31 is slidably connected to the frame 1 along a first direction and is arranged perpendicular to the first direction. The clamping plate 31 is provided with a plurality of through-holes 311, which are arranged in a matrix on the clamping plate 31. Each through-hole 311 is provided with a corresponding clamping rod 32, so that the plurality of clamping rods 32 are arranged in a matrix on the clamping plate 31. The clamping rods 32 are provided through the clamping plate 31 along the first direction and can slide in the through-holes 311 along the first direction. The end of the clamping rod 32 in each clamping assembly 3 that is closest to the other clamping assembly 3 is a clamping end 321. In the first direction, a clamping gap 33 is formed between the clamping ends 321 of the clamping rods 32 in the two clamping assemblies 3. The clamping rods 32 of the two clamping assemblies 3 can clamp the size of the gap 33 during the process of moving along the first direction. During the operation, it is only necessary to place the tool in the clamping gap 33, and place the part of the tool to be blunted outside the clamping gap 33 formed by the clamping rod 32 to facilitate sandblasting by the spray gun 22; then, the two clamping plates 31 are brought close to each other, and the clamping rod 32 will also be close. For tools with parallel concave and convex surfaces, since the clamping rod 32 can slide along the clamping plate 31, the uneven parts of the tool surface can be clamped.

[0030] Reference Figure 3 In order to improve the clamping force, some embodiments of the present application further include an elastic member 4. An elastic member 4 is connected between each clamping rod 32 and the clamping plate 31. One end of the elastic member 4 is fixedly connected to the clamping rod 32, and the other end is fixedly connected to the clamping plate 31. When the elastic member 4 is in a deformed state where the deformation can be restored, it has a force that drives the clamping rod 32 to move toward the clamping gap 33. In the present disclosure, the elastic member 4 is a compression spring, and the elastic member 4 is located on the side of the clamping plate 31 close to the clamping gap 33. In some embodiments of the present application, in order to optimize the structural layout, an avoidance groove 322 is opened on the side wall of the clamping rod 32, and the elastic member 4 is located in the avoidance groove 322. In addition, a lug 323 fixedly connected to the clamping plate 31 is provided on the inner wall of the through hole 311, and one end of the elastic member 4 is fixedly connected to the groove end wall of the avoidance groove 322, and the other end is fixedly connected to the lug 323; when the two clamping seats are approaching each other, the tool pushes the clamping rod 32 to move to compress the elastic member 4. At this time, the elastic member 4 has a ground thrust on the tool to clamp the tool more firmly.

[0031] Reference Figure 4 、 Figure 5 and Figure 6In order to clamp the tool more firmly, some embodiments of the present application further include a locking assembly 5, which is used to fix the clamping rod 32 to the clamping plate 31; specifically, the multiple clamping rods 32 in each row are arranged in sequence along the second direction, and the multiple rows of clamping rods 32 are arranged in sequence along the third direction. A locking gap 34 is formed between two adjacent rows of clamping rods 32, and a locking assembly 5 is correspondingly provided in each locking gap 34. The locking assembly 5 is used to fix the clamping rod 32 to the clamping plate 31; The locking assembly 5 includes a connecting seat 51 and a locking rod 52; the connecting seat 51 is fixedly connected to the clamping plate 31; the length of the locking rod 52 is parallel to the second direction, and in the third direction, the locking rod 52 is located in the middle of the two rows of clamping rods 32; the cross-section of the locking rod 52 perpendicular to the second direction is elliptical, and the locking rod 52 is rotatably connected to the connecting seat 51 around its own central axis. Specifically, each locking rod 52 is provided with a connecting seat 51 at each end, so that the locking rod 52 can rotate along the connecting seat 51 more stably; The side of the locking rod 52 located on the long side of the ellipse is the abutting side 521. During the rotation of the abutting side 521 of the locking rod 52 toward the clamping rod 32, the locking rod 52 changes from the unlocking posture to the locking posture. When the locking rod 52 is in the locking position, the two abutting sides 521 of the locking rod 52 abut against each corresponding clamping rod 32 to fix the clamping rod 32 to the clamping plate 31; When the locking lever 52 is in the unlocking position, the abutting side 521 of the locking lever 52 is separated from the clamping lever 32 , so that the clamping lever 32 can move in the first direction along the first direction; During operation, the clamping rod 32 can be locked or unlocked by simply rotating the locking rod 52 along the connecting seat 51 to different postures; in order to further increase the locking force, in some embodiments of the present application, a non-slip layer 53 is attached to the outer wall of the locking rod 52.

[0032] Reference Figure 5 and Figure 6In order to drive the locking rod 52 to rotate, in some embodiments of the present application, a first driving assembly 6 is further included, and the first driving assembly 6 includes a driving shaft 61, a first bevel gear 62, a second bevel gear 63 and a first motor 64; the driving shaft 61 is parallel to the third direction, and a first mounting seat 65 is provided at each end of the driving shaft 61. The first mounting seat 65 is fixedly connected to the clamping plate 31, and the driving shaft 61 is connected to the first mounting seat 65 around its own axis; each end of each locking rod 52 is coaxially fixedly connected to a first bevel gear 62, and a plurality of second bevel gears are coaxially fixedly connected to the driving shaft 61. Wheel 63, each first bevel gear 62 is meshed with a corresponding second bevel gear 63; therefore, in the process of rotating the drive shaft 61, the second bevel gear 63 will drive multiple first bevel gears 62 to rotate synchronously, thereby driving multiple locking rods 52 to rotate synchronously; the first motor 64 is connected between the drive shaft 61 and one of the connecting seats 51 to drive the drive shaft 61 to rotate along the connecting seat 51. Specifically, the casing of the first motor 64 is fixedly connected to the connecting seat 51, and the output shaft of the first motor 64 is coaxially fixedly connected to the drive shaft 61, so that the drive shaft 61 is driven by the first motor 64 to rotate the rod.

[0033] In order to drive the two clamping plates 31 to move along the first direction, some embodiments of the present application further include a second drive assembly 7. The two clamping plates 31 are both slidably connected to the frame 1 along the first direction. The second drive assembly 7 is used to drive the clamping plates 31 to move along the first direction. The second drive assembly 7 includes a guide rod 71, a bidirectional screw 72, and a second motor 73. The guide rod 71 and the bidirectional screw 72 are parallel to the first direction. In order to install the guide rod 71 and the bidirectional screw 72, two second mounting seats 74 are fixedly connected inside the frame 1. One end of the guide rod 71 is fixedly connected to one of the second mounting seats 74, and the other end is fixedly connected to the frame 1. The guide rod 71 passes through the two clamping plates 31 along the first direction, and the clamping plates 31 can slide along the guide rod 71 in the first direction. The second motor 73 is fixedly connected to the inner wall of the frame 1, and one end of the bidirectional screw 72 is connected to another second mounting base 74, and the other end is coaxially fixedly connected to the output shaft of the second motor 73, so that the second motor 73 drives the bidirectional screw 72 to rotate around the axis of the bidirectional screw 72 on the second mounting base 74; The two threaded sections of the bidirectional screw 72 are each connected to a clamping plate 31. When the second motor 73 drives the bidirectional screw 72 to rotate, the guide rod 71 has a guiding effect on the clamping plate 31. Therefore, the two clamping plates 31 can move in the first direction toward or away from each other.

[0034] The implementation principle of the PCD tool rounding device and process in the embodiment of the present application is as follows: after the tool is clamped by the clamping assembly 3, sandblasting is performed on the tool using the spray gun 22.

[0035] The present application also discloses a PCD tool rounding process, which uses the aforementioned rounding equipment to perform rounding, and includes the following steps: S1: Place the tool in the clamping gap and clamp the tool with two clamping components. When clamping the tool, ensure that the part of the tool to be blunted is located outside the clamping gap to facilitate subsequent sandblasting of the tool with the spray gun. S2: Use a spray gun to blast sand at the cutting edge of the tool to blunt the tool; Before sandblasting, the sandblasting abrasive is differentiated according to the tool passivation requirements. For tools with passivation requirements ≤R0.002, a mixed abrasive of 700# walnut grains and aluminum oxide sand is used; for tools with passivation requirements R0.002-R0.004, 12000# corundum is used; for tools with passivation requirements >R0.004, 6000# corundum is used.

[0036] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A PCD tool blunting device, characterized in that: It comprises a frame (1), a clamping assembly (3) and a locking assembly (5); The frame (1) is connected to two clamping assemblies (3), the two clamping assemblies (3) are symmetrically arranged with respect to a reference plane, the reference plane is perpendicular to a first direction, and at least one of the clamping assemblies (3) is slidably connected to the frame (1) along the first direction; the clamping assembly (3) comprises: a clamping plate (31), the clamping plate (31) being arranged perpendicular to the first direction; and A plurality of clamping rods (32), the clamping rods (32) being passed through the clamping plate (31) along a first direction and being slidably connected to the clamping plate (31) along the first direction; an end of the clamping rod (32) in each clamping assembly (3) close to another clamping assembly (3) is a clamping end (321), and the plurality of clamping rods (32) are distributed in a matrix on the clamping plate (31); The locking assembly (5) is used to fix the clamping rod (32) to the clamping plate (31); In the first direction, a clamping gap (33) is formed between the clamping ends (321) of the clamping rods (32) in the two clamping assemblies (3).

2. A PCD tool blunting device according to claim 1, characterized in that: The plurality of clamping rods (32) in each row are sequentially arranged along the second direction, and the plurality of rows of clamping rods (32) are sequentially arranged along the third direction. A locking gap (34) is formed between two adjacent rows of clamping rods (32), and the locking assembly (5) is correspondingly provided in each locking gap (34); The locking assembly (5) comprises: a connecting seat (51), the connecting seat (51) being fixedly connected to the clamping plate (31); and a locking rod (52), wherein the cross section of the locking rod (52) along a direction perpendicular to the second direction is an ellipse, the length of the locking rod (52) is parallel to the second direction, and in the third direction, the locking rod (52) is located in the middle of the two rows of clamping rods (32); The locking rod (52) is rotatably connected to the connecting seat (51) around its own central axis; The locking rod (52) is located on a side of the long side of the ellipse as the abutting side (521), and when the abutting side (521) of the locking rod (52) rotates toward the clamping rod (32), the locking rod (52) changes from an unlocking posture to a locking posture; When the locking rod (52) is in a locking position, the abutting side (521) of the locking rod (52) abuts against the clamping rod (32) to fix the clamping rod (32) to the clamping plate (31); When the locking rod (52) is in an unlocking posture, the abutting side (521) of the locking rod (52) is separated from the clamping rod (32).

3. A PCD tool blunting device according to claim 2, characterized in that: The invention also comprises a first drive assembly (6), wherein the first drive assembly (6) comprises: A drive shaft (61), the drive shaft (61) is parallel to the third direction, and the drive shaft (61) is rotatable around its own axis and connected to the clamping plate (31); A first bevel gear (62), each end of the locking rod (52) is coaxially fixedly connected to a first bevel gear (62); and Second bevel gears (63), a plurality of second bevel gears (63) are coaxially fixedly connected to the drive shaft (61), and each of the first bevel gears (62) is meshed with a corresponding second bevel gear (63).

4. A PCD tool blunting device according to claim 3, characterized in that: The first drive assembly (6) further comprises: A first motor (64) is connected between the drive shaft (61) and the clamping plate (31) to drive the drive shaft (61) to rotate along the clamping plate (31).

5. A PCD tool blunting device according to claim 4, characterized in that: It also includes an elastic member (4), each of the clamping rods (32) and the clamping plate (31) is correspondingly connected with the elastic member (4), one end of the elastic member (4) is fixedly connected to the clamping rod (32), and the other end is fixedly connected to the clamping plate (31); When the elastic member (4) is in a deformed state capable of recovering the deformation, it has a force that drives the clamping rod (32) to move toward the clamping gap (33).

6. A PCD tool blunting device according to claim 5, characterized in that: A sidewall of the clamping rod (32) is provided with an avoidance groove (322), and the elastic member (4) is located in the avoidance groove (322).

7. A PCD tool blunting device according to any one of claims 2 to 6, characterized in that: The machine also includes a second drive assembly (7), wherein the two clamping plates (31) are both slidably connected to the frame (1) along a first direction, and the second drive assembly (7) is used to drive the clamping plates (31) to move along the first direction, and the second drive assembly (7) includes: A bidirectional screw (72) is parallel to the first direction and is rotatable around its own axis and connected to the frame (1); two threaded sections of the bidirectional screw (72) are each connected to a corresponding clamping plate (31).

8. A PCD tool blunting device according to claim 7, characterized in that: The outer peripheral wall of the locking rod (52) is provided with an anti-slip layer (53).

9. The PCD tool blunting device according to claim 7, characterized in that: Also included is a sandblasting assembly (2), the sandblasting assembly (2) comprising: gooseneck (21); and, A spray gun (22), wherein one end of the gooseneck tube (21) is fixedly connected to the frame (1), and the other end is fixedly connected to the spray gun (22).

10. A PCD tool rounding process, comprising the steps of: S1: Place the tool in the clamping gap (33) and clamp the tool with two clamping assemblies (3); S2: Use a spray gun (22) to sandblast the tool to blunt the tool.

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