Cutting device for mine drill bit production
Through the combined structure of the disc, rod and elastic parts, combined with the restriction mechanism, the problems of unstable clamping and low cutting accuracy of drill bit embryos are solved, and stable clamping and high-precision cutting are achieved to adapt to drill bit embryos of different radial sizes.
Patent Information
- Application Number
- CN202510746142.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2025-07-18
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the production process of mine drill bits, existing cutting devices are difficult to stabilize the clamp of tubular drill bits, resulting in deformation or cutting accuracy, and cannot adapt to drill bits of different radial sizes.
The combined structure of the disc, the first rod, the second rod, the third rod and the elastic member is adopted. The distance change between the pressure plate and the support block is restricted by the restriction mechanism, and the clamping force is adjusted in combination with the drive member to ensure stable clamping and does not affect the blast material, and adapt to drill bit blast material of different radial sizes.
The stable clamping and fixing of tubular drill bit embryos is achieved, which improves cutting accuracy and is suitable for columnar drill bit embryos of different radial sizes, which improves the applicability and production quality of the device.
Smart Images
Figure CN120326045A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of drill bit production equipment, and particularly to a cutting device for the production of mine drill bits. Background Art
[0002] In mine exploitation operations, the drill bit is a key tool, and its production quality has a direct impact on the efficiency and safety of mine exploitation. During the production process of mine drill bits, the cutting process is one of the important links, and the drill bit blank needs to be cut into specific shapes and sizes. Before cutting a tubular drill bit blank, such as the blank used for the diamond composite drill bit produced by our company, the tubular blank is first clamped and fixed. If the acting force is too large, it is easy to cause deformation of the tubular blank, affecting the product quality. If the acting force is too small, it is easy to cause the blank to move during cutting, affecting the cutting accuracy. Therefore, a cutting device is needed to ensure that the tubular blank is stably clamped and fixed each time without affecting the tubular blank. Summary of the Invention
[0003] The purpose of the present invention is to provide a cutting device for the production of mine drill bits, which can ensure that the tubular blank is stably clamped and fixed each time without affecting the tubular blank.
[0004] The technical solution is that the cutting device for the production of mine drill bits includes a support, on which a cutting mechanism for cutting the drill bit blank is installed. At the cutting mechanism of the support, a support block and a pressing plate for cooperatively fixing the drill bit blank are installed. Each support block is fixedly connected to the support. A disc is rotatably connected to the support. A first rod is rotatably connected to the edge of the disc. The first rod is rotatably connected to a second rod. The third rod is slidably connected to the second rod. A first elastic member made of an elastic material is installed between the third rod and the second rod. The third rod is fixedly connected to the pressing plate. The third rod is slidably arranged relative to the support. A limiting mechanism is installed on the support, forming a structure that when the pressing plate and the support block cooperate to fix the drill bit blank, the limiting mechanism limits the increase in the distance between the pressing plate and the support block.
[0005] Preferably, the limiting mechanism includes a bracket fixedly connected to the support. An installation block is rotatably connected to the bracket. A limiting component for limiting the moving direction of the third rod is arranged on each installation block.
[0006] Preferably, the cutting mechanism includes a lead screw. Each lead screw is rotatably connected to the support. A fixing frame is installed on each lead screw. A first motor is installed on the fixing frame. A cutting tool disc is installed on the output shaft of the first motor. Driven gears are installed at the ends of each lead screw. A second driving motor is installed on the support. A driving gear meshing with each driven gear is installed on the output shaft of the second driving motor.
[0007] Preferably, the upper surface of each of the support blocks has a "V"-shaped structure, and each of the support blocks is provided with an interval through which the cutting tool disc in the cutting mechanism passes.
[0008] Preferably, a threaded rod is fixedly connected to the support, a positioning plate is slidably connected to each of the threaded rods, nuts are threadedly connected to both sides of the positioning plate on each of the threaded rods, and the axis of each of the threaded rods is inclined or parallel to the connection line between the positioning plate and the cutting mechanism.
[0009] Preferably, the support is fixedly connected to the fixed end of the telescopic member, the moving end of each of the telescopic members is fixedly connected to a connecting frame, a roller is rotatably connected to each of the connecting frames, each of the rollers is located on both sides of the drill bit blank, a second motor is installed on each of the connecting frames, and the output shaft of each of the second motors is fixedly connected to the roller.
[0010] Preferably, through holes are formed in the upper and lower sides of the support, and the support is slidably connected to the third rod through the through holes.
[0011] Preferably, the limiting component includes a slider, the slider is slidably connected to the mounting block, when the slider contacts the third rod, the sliding direction of the slider and the mounting block is inclined upward towards the third rod, and a second elastic member made of an elastic material is installed between each of the sliders and the mounting block.
[0012] Preferably, each of the mounting blocks has a columnar structure with different radii, grooves are formed on the circumferential side surfaces of each of the mounting blocks, the radius dimension of each of the mounting blocks in the axial direction where the notch of the groove is located is the largest, chutes are formed in each of the grooves, and each of the mounting blocks is slidably connected to the slider through the chute.
[0013] Preferably, each of the mounting blocks is located on both sides of the third rod, each of the limiting components is symmetrically arranged relative to the axis of the third rod, a driven wheel is installed at one end of each of the mounting blocks, a first driving motor is installed on the support, a driving wheel is installed on the output shaft of the first driving motor, the driving wheel is in transmission connection with each of the driven wheels, and each of the driven wheels rotates synchronously.
[0014] The present invention provides a cutting device for the production of mining drill bits, and the beneficial effects compared with the prior art are as follows: 1. Through the cooperation of the disc, the first rod, the second rod, the third rod, the first elastic member and the limiting mechanism, it is ensured that the tubular drill bit blank is stably clamped and fixed each time without affecting the tubular drill bit blank, thereby improving the cutting accuracy, ensuring the production quality of the drill bit, and also facilitating the clamping and fixing of columnar drill bit blanks with different radial dimensions, improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a front view schematic diagram of the present invention.
[0016] Figure 2 This is a partial schematic view of the present invention in the A-A direction.
[0017] Figure 3 This is an enlarged schematic view of the mounting block of the present invention in the D-D direction.
[0018] Figure 4 This is a partial schematic view of the present invention in the B-B direction.
[0019] Figure 5 This is a partial schematic view of the present invention in the C-C direction.
[0020] In the figure: 1 support, 2 cutting mechanism, 2.1 lead screw, 2.2 cutting tool disc, 2.3 driven gear, 2.4 driving gear, 2.5 second driving motor, 3 support block, 4 pressing plate, 5 disc, 6 first rod, 7 second rod, 8 third rod, 9 limiting mechanism, 9.1 bracket, 9.2 mounting block, 9.3 limiting component, 9.3.1 slider, 9.3.2 second elastic member, 9.4 driven wheel, 10 first elastic member, 11 through hole, 12 chute, 13 groove, 14 driving member, 15 threaded rod, 16 positioning plate, 17 nut, 18 telescopic member, 19 connecting frame, 20 roller, 21 second motor. Detailed implementation manners
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.
[0022] In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mount", "connect", "couple" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
[0023] The present invention will be further described in detail below with specific implementation examples in conjunction with the accompanying drawings.
[0024] Please refer to Figures 1-5, the present invention provides a technical solution: a cutting device for the production of mining drill bits, including a support 1, on which a cutting mechanism 2 for cutting drill bit blanks is installed. At the cutting mechanism 2 of the support 1, support blocks 3 and a pressing plate 4 for cooperatively fixing the drill bit blanks are installed. Each support block 3 is bolted to the support 1. A disc 5 is rotatably connected to the support 1. A first rod 6 is rotatably connected to the edge of the disc 5. The first rod 6 is rotatably connected to a second rod 7. The second rod 7 is slidably connected to a third rod 8. A first elastic member 10 made of an elastic material such as a spring is installed between the third rod 8 and the second rod 7. The third rod 8 is fixedly welded to the pressing plate 4. The third rod 8 is arranged to slide relative to the support 1. A limiting mechanism 9 is installed on the support 1 to form a structure that restricts the distance between the pressing plate 4 and the support block 3 from increasing when the pressing plate 4 and the support block 3 cooperate to fix the drill bit blank. Among them, the third rod 8 is sleeved outside the second rod 7. One end of the first elastic member 10 is fixedly clamped to the second rod 7, and the other end of the first elastic member 10 is fixedly clamped to the third rod 8. A suitable driving member 14 such as a servo motor is bolted to the support 1. The output shaft of the driving member 14 is key-connected to the disc 5. In use, for example, a tubular drill bit blank is placed on the support block 3 and located between the pressing plate 4 and the support block 3. By the operation of the driving member 14, the second rod 7 and the third rod 8 move up and down, thereby adjusting the height of the pressing plate 4 so that the pressing plate 4 and the support block 3 cooperate to clamp and fix the drill bit blank. When the pressing plate 4 and the support block 3 cooperate to fix the drill bit blank, the upper end of the first rod 6 is initially located at the highest point, or can be located at other suitable positions, so that the drill bit blank can be located between the pressing plate 4 and the support block 3. The limiting mechanism 9 restricts the distance between the pressing plate 4 and the support block 3 from increasing. By the driving member 14, the disc 5 is rotated by a certain angle, and only needs to ensure that the upper end of the first rod 6 passes through the lowest point. This angle can be any angle under the above premise. When the upper end of the first rod 6 is located at the lowest point, the pressing plate 4 and the support block 3 cooperate to clamp and fix the drill bit blank. The force exerted by the pressing plate 4 on the drill bit blank is the largest, which is the product of the compression length of the first elastic member 10 and its elastic coefficient. In production, by using a first elastic member 10 with a suitable elastic coefficient, it can be ensured that the maximum force exerted by the pressing plate 4 on the drill bit blank is less than the deformation stress of the tubular drill bit blank, so as to prevent the clamping and fixing of the tubular drill bit blank from affecting the tubular drill bit blank. In addition, the maximum force exerted by the pressing plate 4 on the drill bit blank can also be ensured to be less than the deformation stress of the tubular drill bit blank by changing the height difference between the highest point and the lowest point where the upper end of the first rod 6 is located, such as adjusting the distance between the upper end of the first rod 6 and the axis of the disc 5, etc., so as to change the compression length of the first elastic member 10. Since the limiting mechanism 9 restricts the distance between the pressing plate 4 and the support block 3 from increasing, after the pressing plate 4 and the support block 3 cooperate to clamp and fix the drill bit blank, no matter how the disc 5 rotates, the relative positions of the pressing plate 4 and the support block 3 do not change, so as to stably clamp and fix the drill bit blank. And the up and down movement of the second rod 7 caused by the rotation of the disc 5,The length of the first elastic member 10 is changed without affecting the position of the third rod 8, thereby ensuring stable clamping and fixing of the tubular blank each time without affecting the tubular blank. After cutting, the limiting mechanism 9 no longer restricts the change in the distance between the pressing plate 4 and the support block 3, does not affect the removal of the cut blank from between the pressing plate 4 and the support block 3, nor does it affect the entry of the uncut blank into the space between the pressing plate 4 and the support block 3.
[0025] In addition, the rotation angle of the disc 5 can be controlled by the driving member 14, thereby controlling the compression length of the first elastic member 10, and further controlling the maximum force applied by the pressing plate 4 to the drill blank. When the force applied by the pressing plate 4 to the drill blank causes the pressing plate 4 and the support block 3 to cooperate to clamp and fix the tubular drill blank without affecting the tubular drill blank, the disc 5 is stopped from rotating or rotated in the reverse direction. Since the limiting mechanism 9 restricts the increase in the distance between the pressing plate 4 and the support block 3, it can also ensure stable clamping and fixing of the tubular blank each time without affecting the tubular blank.
[0026] In addition, the device is also convenient for clamping and fixing columnar drill blanks with different radial dimensions. The columnar drill blanks with different radial dimensions are placed between the pressing plate 4 and the support block 3. For the blank with a larger radial dimension, the compression length of the first elastic member 10 is smaller, and for the blank with a smaller radial dimension, the compression length of the first elastic member 10 is larger. By restricting the increase in the distance between the pressing plate 4 and the support block 3 by the limiting mechanism 9, the columnar drill blanks with different radial dimensions can be clamped and fixed.
[0027] In one embodiment, the limiting mechanism 9 includes a bracket 9.1. The bracket 9.1 is fixedly connected or bolted to the support 1. An installation block 9.2 is rotatably connected to the bracket 9.1. A limiting component 9.3 for restricting the moving direction of the third rod 8 is provided on each installation block 9.2. When the limiting component 9.3 contacts the third rod 8 through the rotation of the installation block 9.2, the third rod 8 cannot move upward through the limiting component 9.3.
[0028] In one embodiment, through holes 11 are opened on the upper and lower sides of the bracket 9.1. The bracket 9.1 is slidably connected to the third rod 8 through the through holes 11. For example, there are two suitable numbers of through holes 11. Grooves are opened on the side walls of the through holes 11, and balls are installed in the grooves. The balls facilitate the sliding of the third rod 8 relative to the bracket 9.1. Through each through hole 11, the third rod 8 can only move up and down.
[0029] In one embodiment, the limit assembly 9.3 includes a slider 9.3.1 which is slidably connected to the mounting block 9.2. When the slider 9.3.1 contacts the third rod 8, the sliding direction of the slider 9.3.1 and the mounting block 9.2 inclines upward toward the third rod 8. A second elastic member 9.3.2 made of an elastic material such as a spring is installed between each slider 9.3.1 and the mounting block 9.2. The two ends of the second elastic member 9.3.2 are snap - fixed to the slider 9.3.1 and the mounting block 9.2. When the pressing plate 4 and the supporting block 3 cooperate to fix the drill blank, the slider 9.3.1 contacts the third rod 8. Through the cooperation of the slider 9.3.1, the mounting block 9.2, and the second elastic member 9.3.2, the third rod 8 cannot slide upward. Also, because of the through - hole 11 on the bracket 9.1, the third rod 8 can only move up and down, so that the third rod 8 stops or moves downward relative to the bracket 9.1, and thus the distance between the pressing plate 4 and the supporting block 3 remains unchanged or decreases. In this way, when the pressing plate 4 and the supporting block 3 cooperate to fix the drill blank, a structure is formed in which the limiting mechanism 9 restricts the increase in the distance between the pressing plate 4 and the supporting block 3.
[0030] In one embodiment, each mounting block 9.2 is a columnar structure with different radii. The distance between each part on the mounting block 9.2 and the rotation axis of the mounting block 9.2 is its radius. Grooves 13 are formed on the circumferential side surfaces of each mounting block 9.2. The radius dimension of each mounting block 9.2 in the axial direction where the groove 13 opening is located is the largest. Sliding grooves 12 are formed in each groove 13. Each mounting block 9.2 is slidably connected to the slider 9.3.1 through the sliding groove 12. Among them, the radius dimension of each mounting block 9.2 in the axial direction where the groove 13 opening is located is greater than the radius dimension of the rest of the part. By rotating the mounting block 9.2, when the slider 9.3.1 does not contact the third rod 8, there is a gap between the mounting block 9.2 and the third rod 8, which facilitates the up - and - down movement of the third rod 8 relative to the bracket 9.1.
[0031] In one embodiment, there are, for example, two suitable numbers of mounting blocks 9.2. Each mounting block 9.2 is located on both sides of the third rod 8. Each limit assembly 9.3 is symmetrically arranged relative to the axis of the third rod 8. One end of each mounting block 9.2 is key - connected and fixed to a driven wheel 9.4. A first driving motor is bolt - fixed on the bracket 9.1. The first driving motor is a suitable motor such as a servo motor. The output shaft of the first driving motor is key - connected and fixed to a driving wheel. The driving wheel is drivingly connected to each driven wheel 9.4, and each driven wheel 9.4 rotates synchronously. Among them, each driven wheel 9.4 and the driving wheel are gears. The driving wheel is drivingly connected to each driven gear 2.3. By operating the first driving motor, each slider 9.3.1 contacts or separates from the third rod 8 simultaneously.
[0032] In one embodiment, the cutting mechanism 2 includes a lead screw 2.1. There are, for example, two suitable numbers of lead screws 2.1, which are located in the vertical direction. Each lead screw 2.1 is rotatably connected to the support 1. A fixing frame is mounted on each lead screw 2.1 through the thread thereon. A first motor is bolted to the fixing frame. The first motor is a motor in the prior art. A cutting tool disc 2.2 is key-connected to the output shaft of the first motor. A driven gear 2.3 is key-connected to the end of each lead screw 2.1. A second driving motor 2.5 is bolted to the support 1. The second driving motor 2.5 is a suitable motor such as a servo motor. A driving gear 2.4 meshing with each driven gear 2.3 is key-connected to the output shaft of the second driving motor 2.5. By operating the second driving motor 2.5, the cutting tool disc 2.2 moves up and down. By operating the first motor, the cutting tool disc 2.2 rotates, thereby cutting the drill bit blank.
[0033] In one embodiment, the upper surface of each support block 3 is of a "V" - shaped structure. An interval for the cutting tool disc 2.2 in the cutting mechanism 2 to pass through is provided on each support block 3. The drill bit blank is placed on the "V" - shaped structure, which is convenient for clamping and fixing the drill bit blank. Among them, according to the actual situation, an interval for the pressing plate 4 to pass through can also be provided on the support block 3.
[0034] In one embodiment, a threaded rod 15 is welded and fixed to the support 1. There are, for example, four suitable numbers of threaded rods 15. A positioning plate 16 is slidably connected to each threaded rod 15. Nuts 17 are thread - connected to both sides of the positioning plate 16 on each threaded rod 15. The axis of each threaded rod 15 is parallel to the line connecting the positioning plate 16 and the cutting mechanism 2, and can also be arranged slightly inclined. The positioning plate 16 contacts the end of the drill bit blank. The distance between the positioning plate 16 and the cutting tool disc 2.2 is the cutting length of the drill bit blank. By sliding the positioning plate 16 relative to the threaded rod 15, it is convenient to adjust the cutting length of the drill bit blank. By means of the nuts 17, the position of the positioning plate 16 relative to the threaded rod 15 is fixed.
[0035] In one embodiment, the support 1 is bolt - fixed to the fixed end of the telescopic member 18. The movable end of each telescopic member 18 is bolt - fixed to the connecting frame 19. The telescopic member 18 is a suitable component such as an electric telescopic rod. A roller 20 is rotatably connected to each connecting frame 19. Each roller 20 is located on both sides of the drill bit blank. A second motor 21 is bolted to each connecting frame 19. The second motor 21 is a motor in the prior art. The output shaft of each second motor 21 is fixedly connected to the roller 20 through a coupling. By operating the second motor 21, each roller 20 is driven to rotate, thereby moving the drill bit blank located between each roller 20, which is convenient for the drill bit blank to move to the cutting mechanism 2.
[0036] In one embodiment, the support 1 includes a base, a first mounting bracket, a second mounting bracket, and a third mounting bracket. The first mounting bracket, the second mounting bracket, and the third mounting bracket are bolted to the base. Components such as the driving member 14 and the bracket 9.1 are bolted to the first mounting bracket. The cutting mechanism 2 is mounted on the second mounting bracket. The telescopic member 18 is bolted to the third mounting bracket. Components such as the support block 3 are bolted to the base.
[0037] The present invention has been described in detail through specific embodiments and examples above, but these do not constitute limitations to the present invention. Without departing from the principle of the present invention, those skilled in the art can also make many deformations and improvements, which should also be regarded as the protection scope of the present invention.
Claims
1. Cutting device for producing mining drill bits, comprising a support (1), characterized in that: A cutting mechanism (2) for cutting drill bit blanks is installed on the support (1). A support block (3) and a pressing plate (4) for cooperatively fixing the drill bit blanks are installed on the support (1) at the cutting mechanism (2). Each support block (3) is fixedly connected to the support (1). A disc (5) is rotatably connected to the support (1). A first rod (6) is rotatably connected to the edge of the disc (5). The first rod (6) is rotatably connected to a second rod (7). The second rod (7) is slidably connected to a third rod (8). A first elastic member (10) made of an elastic material is installed between the third rod (8) and the second rod (7). The third rod (8) is fixedly connected to the pressing plate (4). The third rod (8) is slidably arranged relative to the support (1). A limiting mechanism (9) is installed on the support (1), forming a structure in which when the pressing plate (4) and the support block (3) cooperate to fix the drill bit blank, the limiting mechanism (9) limits the increase in the distance between the pressing plate (4) and the support block (3).
2. The cutting device for producing a mine drill bit according to claim 1, characterized in that: The limiting mechanism (9) includes a bracket (9.1). The bracket (9.1) is fixedly connected to the support (1). An installation block (9.2) is rotatably connected to the bracket (9.1). A limiting component (9.3) for limiting the moving direction of the third rod (8) is arranged on each installation block (9.2).
3. The cutting device for producing a mine drill bit according to claim 1, characterized in that: The cutting mechanism (2) includes a lead screw (2.1). Each lead screw (2.1) is rotatably connected to the support (1). A fixing frame is installed on each lead screw (2.1). A first motor is installed on the fixing frame. A cutting tool disc (2.2) is installed on the output shaft of the first motor. A driven gear (2.3) is installed at the end of each lead screw (2.1). A second driving motor (2.5) is installed on the support (1). A driving gear (2.4) meshing with each driven gear (2.3) is installed on the output shaft of the second driving motor (2.5).
4. The cutting device for producing a mine drill bit according to claim 1, characterized in that: The upper surface of each support block (3) has a "V" - shaped structure. An interval for the cutting tool disc (2.2) in the cutting mechanism (2) to pass through is arranged on each support block (3).
5. The cutting device for producing mine drill bits according to claim 1, wherein: A threaded rod (15) is fixedly connected to the support (1). A positioning plate (16) is slidably connected to each threaded rod (15). Nuts (17) are threadedly connected to both sides of the positioning plate (16) on each threaded rod (15). The axis of each threaded rod (15) is inclined or parallel to the connection line between the positioning plate (16) and the cutting mechanism (2).
6. The cutting device for producing a mine drill bit according to claim 1, characterized in that: The support (1) is fixedly connected to the fixed end of a telescopic member (18). The movable end of each telescopic member (18) is fixedly connected to a connecting frame (19). A roller (20) is rotatably connected to each connecting frame (19). Each roller (20) is located on both sides of the drill bit blank. A second motor (21) is installed on each connecting frame (19). The output shaft of each second motor (21) is fixedly connected to the roller (20).
7. The cutting device for producing mine drill bits according to claim 2, characterized in that: Through - holes (11) are formed on the upper and lower sides of the bracket (9.1). The bracket (9.1) is slidably connected to the third rod (8) through the through - holes (11).
8. The cutting device for producing a mine drill bit according to claim 2, wherein: The limiting component (9.3) includes a slider (9.3.1), the slider (9.3.1) is slidably connected to the mounting block (9.2), when the slider (9.3.1) contacts the third rod (8), the sliding direction of the slider (9.3.1) and the mounting block (9.2) is inclined upward toward the third rod (8), and a second elastic member (9.3.2) made of an elastic material is installed between each slider (9.3.1) and the mounting block (9.2).
9. The cutting device for producing a mine drill bit according to claim 8, wherein: Each of the mounting blocks (9.2) is a columnar structure with different radii, a groove (13) is formed on the circumferential side surface of each mounting block (9.2), the radius dimension of each mounting block (9.2) is the largest in the axial direction where the groove (13) opening is located, a sliding groove (12) is formed in each groove (13), and each mounting block (9.2) is slidably connected to the slider (9.3.1) through the sliding groove (12).
10. The cutting device for producing a mine drill bit according to claim 2, wherein: Each of the mounting blocks (9.2) is located on both sides of the third rod (8), each limiting component (9.3) is symmetrically arranged relative to the axis of the third rod (8), a driven wheel (9.4) is installed at one end of each mounting block (9.2), a first driving motor is installed on the bracket (9.1), a driving wheel is installed on the output shaft of the first driving motor, the driving wheel is in transmission connection with each driven wheel (9.4), and each driven wheel (9.4) rotates synchronously.