Cutting pick body surface brazing layer coating equipment
By designing the brazing layer coating equipment on the surface of the tooth cutting tooth, the precise filling and uniform distribution of the brazing paste is achieved using components such as the butt shell and the diverter disk, the problem of easy wire drawing of the brazing paste after coating is solved, and the flatness and service life of the outer surface of the tooth cutting are ensured.
Patent Information
- Application Number
- CN202510403253.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2025-05-02
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the existing tooth cutting processing technology, the brazing paste is prone to adhere to the inner wall of the shell after coating, resulting in wire drawing and causing burrs on the outer surface of the finished tooth cutting.
A tooth cutting tooth surface brazing coating device is designed, including infusion equipment and fixing equipment. The infusion equipment achieves precise infusion and uniform distribution of the brazing paste by connecting components such as the shell and the diverter plate. The fixing equipment ensures that the brazing paste is not easy to draw during the coating process through clamping and drainage equipment.
The equipment can accurately coat the brazing paste to avoid the wire drawing of the brazing paste, ensure that the outer surface of the cutting teeth is flat and burrless, and improve the service life and working performance of the finished product.
Smart Images
Figure CN119909896A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of pick processing, in particular to a pick tooth body surface brazing layer coating device. Background Art
[0002] The pick is a vulnerable part inside the tunnel boring machine. Since the pick is subjected to harsh working conditions during operation, its surface is often prone to wear, fatigue and other problems, which affect its service life and working performance. Therefore, when processing the pick, it is necessary to apply a brazing paste coating on the surface of the tooth body to increase the service life of the tooth body after welding with cemented carbide.
[0003] In order to ensure that an appropriate amount of solder paste can be accurately applied to the outer surface of the tooth body of the pick, and the solder paste will not drip from the outer surface of the tooth body, an adaptive shell device can be set for the coated tooth body, and solder paste can be added to the inside of the shell. The coating of the tooth body is completed through the adaptive inner wall of the shell. However, after the solder paste is applied to the outer surface of the tooth body, the solder paste will adhere to the inner wall of the shell during shelling, and wire drawing will occur, resulting in obvious wire drawing of the solder paste on the outer surface of the pick after coating, which in turn causes burrs on the outer surface of the finished pick, so improvement is needed. Summary of the invention
[0004] In view of the shortcomings of the prior art, the present invention solves the technical problems by adopting a technical solution: a pick tooth body surface brazing layer coating device, including a pouring device and a fixing device; The perfusion equipment comprises a flow distribution plate, a supply connecting pipe is fixedly connected to the axis of the top of the flow distribution plate, a traction connecting pipe is fixedly connected to the axis of the lower surface of the flow distribution plate, flow distribution pipes are evenly arranged on the side of the flow distribution plate through a docking port, a central ring shell is fixedly connected to the bottom end of the flow distribution pipe, and sleeve components are evenly arranged on the lower surface of the central ring shell; The socket component includes a docking shell, an external link is fixedly connected to the middle of the outer surface of the docking shell, a traction buckle is fixedly connected to the middle of the outer surface of the external link through an embedded groove, a traction rope is fixedly connected to the inner cavity of the traction buckle, a micro reel is fixedly connected to the top of the traction rope, a guide ball shell is rotatably connected to the axis at the top of the inner cavity of the docking shell, the docking shells on both sides are deflected along the spherical surface of the guide ball shell, a docking tube is fixedly connected to the axis of the inner cavity of the guide ball shell, and since the guide ball shell is a hollow structure, the solder paste added from the docking tube can enter the interior of the combined docking shell through the bottom opening of the guide ball shell, and a compression spring belt is fixedly connected to the middle of the upper surface of the docking shell.
[0005] Furthermore, a pressurized pump body is symmetrically arranged on both sides of the upper surface of the docking shell, a filter element is fixedly connected to the top of the inner cavity of the pressurized pump body, an adapting inner sleeve is fixedly connected to the middle of the inner wall of the docking shell, and the inner cavity of the adapting inner sleeve is evenly provided with tooth body adapting grooves, through which the solder paste can be accurately poured into the tooth groove of each pick. The outer surface of the micro reel is fixedly connected to the outer surface of the centralized ring shell, the top end of the docking tube is fixedly connected to the inner cavity of the centralized ring shell, the top end of the compression spring belt is fixedly connected to the lower surface of the centralized ring shell, and the top end of the pressurized pump body extends to the outside of the docking shell.
[0006] Furthermore, the fixing device includes a fixed bottom shell, a traction shaft tube is fixedly connected to the axis of the inner wall of the fixed bottom shell, drainage grooves are evenly opened in the inner cavity of the fixed bottom shell, and a clamping device is evenly arranged on the upper surface of the fixed bottom shell, each pick is vertically placed inside the clamping device to achieve a fixing effect, and then each pick below is sleeved by the sleeve parts evenly divided above, and drainage devices are evenly arranged on the inner wall of the fixed bottom shell. The axis of the top of the inner cavity of the traction shaft tube is fixedly connected to the bottom end of the traction connecting pipe, the bottom end of the diverter pipe extends to the inside of the concentrated ring shell, the lower surface of the fixed bottom shell is fixedly connected to the ground, and the bottom of the inner wall of the docking shell and the upper surface of the fixed bottom shell are pressed against each other.
[0007] Furthermore, the clamping device includes a limit ring, the inner cavity of the limit ring is fixedly connected to a control plate, thrust arms are symmetrically arranged on both sides of the control plate, an end of the thrust arm away from the control plate is fixedly connected to an arc-shaped clamping plate, and the top of the inner cavity of the fixed bottom shell located inside the limit ring is evenly provided with through air holes. The lower surface of the limit ring is fixedly connected to the upper surface of the fixed bottom shell, the outer surface of the arc-shaped clamping plate is slidably connected to the upper surface of the fixed bottom shell, and the outer surface of the arc-shaped clamping plate and the outer surface of the pick are pressed against each other, and the outer surface of the thrust arm is slidably connected to the inner cavity of the limit ring.
[0008] Furthermore, the drainage device includes a docking bottom shell, which is divided into an axial accommodating area and a lateral accommodating area. A drainage turbine is rotatably connected to the axis of the inner wall of the docking bottom shell, and the drainage turbine is in the axial area. A heating plate is fixedly connected to the bottom end of the axis of the inner wall of the docking bottom shell, and the heating plate heats up the area of the axis of the docking bottom shell by self-heating. A rotating motor is fixedly connected to the axis of the bottom of the inner cavity of the drainage turbine. Pressure sensors are evenly arranged on the top of the inner wall of the docking bottom shell, and the bottom end of the output shaft of the pressure sensor is fixedly connected to an adsorption pull cylinder. The pressure sensor and the adsorption pull cylinder are both located in the lateral accommodating area. Air inlet slots are evenly opened at the bottom of the inner cavity of the docking bottom shell, the bottom of the outer surface of the rotating motor is fixedly connected to the axis of the bottom of the inner wall of the docking bottom shell, the bottom end of the adsorption pull cylinder is fixedly connected to the air inlet in the middle of the inner wall of the docking bottom shell, and the top of the docking bottom shell is fixedly connected to the top of the inner wall of the fixed bottom shell.
[0009] The beneficial effects of the present invention are as follows: 1. The device can cover the pick to be coated by a docking shell that is compatible with the outer surface of the pick, and then fill the solder paste into the reserved space by pouring solder paste into the docking shell, so as to achieve the coating of the pick more accurately and from top to bottom. After the pick is coated, the docking shells on both sides will be opened by rotating and separating. Compared with the direct lifting method, the solder paste will not be drawn directly upward, and will continuously blow air to the outer surface of the pick through the tooth body adaptation groove, so that the solder paste after wire drawing is spread on the outer surface of the pick, thereby eliminating the problem of sharp thorns in the solder paste.
[0010] 2. The device can coat the picks of different types with a brazing layer by replacing the internal adapter sleeve. Since the gap reserved between the tooth body adapter groove and the pick is small and sufficient for the brazing paste to cover the outer surface of the pick, when the device is used to coat the pick, the brazing paste on the outer surface of the pick will not be too thick, thereby ensuring that the working performance of the processed pick is relatively good. Since the brazing paste is a mixture of brazing agent and adhesive, it is toxic to the human body. The device can automatically coat the brazing paste throughout the process, thereby avoiding the problem of human body being harmed by contact with the brazing paste.
[0011] 3. When the device is processing the pick parts, the combined docking shell and the fixed bottom shell will seal the pick, so that the solder paste can be distributed to each pick more accurately. The large-capacity diverter plate ensures that the amount of solder paste is sufficient, and the distribution function of each docking tube and the guide ball shell can avoid the problem of excessive solder paste smearing on the pick on the inner wall of the docking shell, and the solder paste can be stored inside the guide ball shell, and the solder paste will not be discharged without pressurization.
[0012] 4. When the pick is coated with solder paste, the drainage equipment inside the fixed bottom shell can perform heat processing on the area where each pick is located, so as to prevent the solder paste from cooling and solidifying during the coating process. Since the temperature inside the docking shell is high after it is opened, in order to block the heat supply at the bottom, the drainage turbine will stop rotating in time to prevent the heat from the heating plate and the inside of the docking bottom shell from being transferred to the upper part of the fixed bottom shell, avoiding scalding problems during recovery and loading. Because the heating plate is continuously heated, the heating plate does not need to be preheated each time the material is loaded and unloaded, thereby ensuring that the heating efficiency of the drainage equipment is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a front view of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 is a cross-sectional view of the perfusion device of the present invention; Figure 4 is a partial cross-sectional view of the sleeve component of the present invention; Figure 5 It is a schematic diagram of the structure of the docking housing of the present invention when it is in an open state; Figure 6 is a cross-sectional view of a fixing device of the present invention; Figure 7 is a cross-sectional view of the clamping device of the present invention; Figure 8 It is a cross-sectional view of the drainage device of the present invention.
[0014] In the figure: 1. injection equipment; 2. fixing equipment; 11. diverter plate; 12. supply connecting pipe; 13. diverter pipe; 14. central ring shell; 15. traction connecting pipe; 3. sleeve parts; 31. docking shell; 32. external link; 33. traction buckle; 34. guide ball shell; 35. docking pipe; 36. traction rope; 37. micro reel; 38. compression spring belt; 39. pressurized pump body; 310. filter element ; 311, matching inner sleeve; 312, tooth body matching groove; 21, fixed bottom shell; 22, drainage groove; 23, traction shaft cylinder; 4, clamping device; 41, limit ring; 42, control board; 43, thrust arm; 44, arc-shaped clamp; 5, drainage device; 51, docking bottom shell; 52, pressure sensor; 53, adsorption pull cylinder; 54, air intake notch; 55, rotating motor; 56, drainage turbine; 57, heating cake plate. DETAILED DESCRIPTION
[0015] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.
[0016] Example 1, please refer to Figure 1-Figure 6 The present invention provides a technical solution: a pick tooth body surface brazing layer coating device, comprising a pouring device 1 and a fixing device 2; The perfusion device 1 includes a flow distribution plate 11, a supply connecting pipe 12 is fixedly connected to the axis of the top of the flow distribution plate 11, a traction connecting pipe 15 is fixedly connected to the axis of the lower surface of the flow distribution plate 11, and a flow distribution pipe 13 is evenly arranged on the side of the flow distribution plate 11 through a docking port, a central ring shell 14 is fixedly connected to the bottom end of the flow distribution pipe 13, and a sleeve component 3 is evenly arranged on the lower surface of the central ring shell 14; The socket component 3 includes a docking shell 31, an external link 32 is fixedly connected to the middle of the outer surface of the docking shell 31, a traction buckle 33 is fixedly connected to the middle of the outer surface of the external link 32 through an embedded groove, a traction rope 36 is fixedly connected to the inner cavity of the traction buckle 33, and a micro reel 37 is fixedly connected to the top of the traction rope 36. A guide ball shell 34 is rotatably connected to the axis at the top of the inner cavity of the docking shell 31, and the docking shells 31 on both sides are deflected along the spherical surface of the guide ball shell 34. A docking tube 35 is fixedly connected to the axis of the inner cavity of the guide ball shell 34. Since the guide ball shell 34 is a hollow structure, the solder paste added from the docking tube 35 can enter the interior of the merged docking shell 31 through the bottom opening of the guide ball shell 34, and a compression spring belt 38 is fixedly connected to the middle of the upper surface of the docking shell 31.
[0017] The pressurizing pump body 39 is symmetrically arranged on both sides of the upper surface of the docking shell 31. The top of the inner cavity of the pressurizing pump body 39 is fixedly connected with a filter element 310. The middle of the inner wall of the docking shell 31 is fixedly connected with an adapting inner sleeve 311. The inner cavity of the adapting inner sleeve 311 is evenly provided with tooth body adapting grooves 312. The solder paste can be accurately poured into the tooth groove of each pick through the tooth body adapting grooves 312. The outer surface of the micro reel 37 is fixedly connected to the outer surface of the concentrated ring shell 14, the top of the docking tube 35 is fixedly connected to the inner cavity of the concentrated ring shell 14, the top of the compression spring belt 38 is fixedly connected to the lower surface of the concentrated ring shell 14, and the top of the pressurizing pump body 39 extends to the outside of the docking shell 31.
[0018] The fixing device 2 includes a fixed bottom shell 21, a traction shaft cylinder 23 is fixedly connected to the axis of the inner wall of the fixed bottom shell 21, drainage grooves 22 are evenly opened in the inner cavity of the fixed bottom shell 21, and a clamping device 4 is evenly arranged on the upper surface of the fixed bottom shell 21. Each pick is vertically placed inside the clamping device 4 to achieve a fixing effect, and then each pick below is sleeved by the sleeve parts 3 evenly divided above, and drainage devices 5 are evenly arranged on the inner wall of the fixed bottom shell 21. The axis of the top of the inner cavity of the traction shaft cylinder 23 is fixedly connected to the bottom end of the traction connecting pipe 15, the bottom end of the shunt pipe 13 extends to the inside of the concentrated ring shell 14, the lower surface of the fixed bottom shell 21 is fixedly connected to the ground, and the bottom of the inner wall of the docking shell 31 and the upper surface of the fixed bottom shell 21 are pressed against each other.
[0019] When the device is used to apply solder paste to pick parts, each batch of pick parts is vertically inserted into the clamping device 4 of the fixing device 2, each clamping device 4 is filled, and then the fiber layer coating work is uniformly performed on the batch of pick parts.
[0020] After the two docking shells 31 are combined together, the diverter plate 11 is pulled down by the traction shaft tube 23 below, and then the sleeve component 3 is sleeved on the outer surface of each pick. At this time, the internal adapter inner sleeve 311 is in contact with the outer surface of the pick, and the tooth body adapter groove 312 is in contact with each groove position of the pick. At this time, the pick is in a relatively sealed state. Then, solder paste is added to the inside of the diverter plate 11 through the supply connecting pipe 12, and pressurized into each diverter pipe 13 through the diverter port inside the diverter plate 11, and evenly distributed to each sleeve component 3.
[0021] After the solder paste enters the internal area of the adapter inner sleeve 311 through the connecting tube 35 and the guide ball shell 34, it will gradually fill the gap between the inner wall of the adapter inner sleeve 311 and the outer surface of the pick, and then coat the solder layer on the outer surface of the pick. During the coating process, the pressure pump body 39 located on both sides above pressurizes the mesh area of the tooth body adapter groove 312, thereby preventing the solder paste injected inside from overflowing through the tooth body adapter groove 312 to the outside of the adapter inner sleeve 311.
[0022] After the outer surface of the pick is coated, the micro reels 37 on both sides will deflect the docking shells 31 on both sides around the guide spherical shell 34 in the middle by winding the traction rope 36, thereby opening the docking shells 31. Figure 5 As shown, at this time, the docking shell 31 is separated from the internal cutting teeth, and the solder paste on the outer surface of the cutting teeth is separated from the matching inner sleeve 311 on the inner wall of the docking shell 31, and the pressure pump body 39 located inside the docking shell 31 still blows air to the outer surface of the cutting teeth through the holes of the matching grooves 312 of the tooth body. Under the action of wind force, the drawn solder paste will bend and flatten in the direction of fitting the outer surface of the cutting teeth, thereby reducing the burr phenomenon on the outer surface of the cutting teeth after the solder paste is cooled.
[0023] Example 2, please refer to Figure 1-Figure 8 The present invention provides a technical solution: on the basis of Example 1, the clamping device 4 includes a limit ring 41, the inner cavity of the limit ring 41 is fixedly connected to a control board 42, thrust arms 43 are symmetrically arranged on both sides of the control board 42, an arc-shaped clamping plate 44 is fixedly connected to one end of the thrust arm 43 away from the control board 42, and penetrating air holes are evenly opened in the area inside the limit ring 41 at the top of the inner cavity of the fixed bottom shell 21. The lower surface of the limit ring 41 is fixedly connected to the upper surface of the fixed bottom shell 21, the outer surface of the arc-shaped clamping plate 44 is slidably connected to the upper surface of the fixed bottom shell 21, and the outer surface of the arc-shaped clamping plate 44 and the outer surface of the pick are pressed against each other, and the outer surface of the thrust arm 43 is slidably connected to the inner cavity of the limit ring 41.
[0024] The drainage device 5 includes a docking bottom shell 51, which is divided into an axial accommodating area and a side accommodating area. A drainage turbine 56 is rotatably connected to the axis of the inner wall of the docking bottom shell 51, and the drainage turbine 56 is located in the axial area. A heating plate 57 is fixedly connected to the bottom end of the axis of the inner wall of the docking bottom shell 51. The heating plate 57 heats up the axial area of the docking bottom shell 51 by self-heating. A rotating motor 55 is fixedly connected to the axis of the bottom of the inner cavity of the drainage turbine 56. Pressure sensors 52 are evenly arranged on the top of the inner wall of the docking bottom shell 51. The bottom end of the output shaft of the pressure sensor 52 is fixedly connected to an adsorption pull cylinder 53. The pressure sensor 52 and the adsorption pull cylinder 53 are both located in the side accommodating area. Air inlet slots 54 are evenly opened at the bottom of the inner cavity of the docking bottom shell 51, the bottom of the outer surface of the rotating motor 55 is fixedly connected to the axis of the bottom of the inner wall of the docking bottom shell 51, the bottom end of the adsorption pull cylinder 53 is fixedly connected to the air inlet in the middle of the inner wall of the docking bottom shell 51, and the top of the docking bottom shell 51 is fixedly connected to the top of the inner wall of the fixed bottom shell 21.
[0025] The bottom of the pick usually does not need to be coated, so after the pick is inserted into the limiting ring 41, the control board 42 clamps the inserted pick and fixes it at the axial position by pushing the arc clamping plate 44.
[0026] When the combined docking shell 31 is sleeved on the pick, the rotary motor 55 located below controls the flow turbine 56 to rotate, so that the flow turbine 56 can pressurize the pick inside the limit ring 41 to blow air from bottom to top. Because the air passes through the heating plate 57, the high-temperature air passes through the mesh at the bottom of the clamping device 4 and enters the interior of the docking shell 31 for pressurization and temperature increase, so that the solder paste can be more easily coated on the outer surface of the pick. When the flow turbine 56 pressurizes the upper side, It will drive the airflow inside the docking bottom shell 51, thereby causing a slight negative pressure area to be formed in the lower area of the docking bottom shell 51. At this time, the adsorption pull cylinder 53 will trigger the pressure sensor 52, which means that the drainage turbine 56 can work normally. When the drainage turbine 56 stops rotating, since the drainage turbine 56 blocks the top opening of the fixed bottom shell 21, the upper area of the fixed bottom shell 21 will cool down rapidly, and the heated cutting teeth will also cool down rapidly. At this time, the processed cutting teeth can be removed for replacement and the next group of cutting teeth can be coated.
[0027] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.
Claims
1. A pick tooth body surface brazing coating device, comprising a pouring device (1) and a fixing device (2), characterized in that: The perfusion device (1) comprises a flow distribution plate (11), a supply connecting pipe (12) is fixedly connected to the axis of the top of the flow distribution plate (11), a traction connecting pipe (15) is fixedly connected to the axis of the lower surface of the flow distribution plate (11), flow distribution pipes (13) are evenly arranged on the side of the flow distribution plate (11) through a docking interface, a centralizing ring shell (14) is fixedly connected to the bottom end of the flow distribution pipe (13), and a sleeve component (3) is evenly arranged on the lower surface of the centralizing ring shell (14); The sleeve component (3) comprises a docking shell (31), an external link (32) is fixedly connected to the middle of the outer surface of the docking shell (31), a traction buckle (33) is fixedly connected to the middle of the outer surface of the external link (32) via an embedded groove, a traction rope (36) is fixedly connected to the inner cavity of the traction buckle (33), a micro reel (37) is fixedly connected to the top of the traction rope (36), a guide ball shell (34) is rotatably connected to the axis of the top of the inner cavity of the docking shell (31), a docking tube (35) is fixedly connected to the axis of the inner cavity of the guide ball shell (34), and a compression spring belt (38) is fixedly connected to the middle of the upper surface of the docking shell (31).
2. The pick tooth body surface brazing coating device according to claim 1, characterized in that: A pressurizing pump body (39) is symmetrically arranged on both sides of the upper surface of the docking shell (31); a filter element (310) is fixedly connected to the top of the inner cavity of the pressurizing pump body (39); an adapting inner sleeve (311) is fixedly connected to the middle of the inner wall of the docking shell (31); and the inner cavity of the adapting inner sleeve (311) is evenly provided with tooth body adapting grooves (312).
3. The pick tooth body surface brazing coating device according to claim 2, characterized in that: The outer surface of the micro reel (37) is fixedly connected to the outer surface of the central ring shell (14), the top end of the docking tube (35) is fixedly connected to the inner cavity of the central ring shell (14), the top end of the compression spring belt (38) is fixedly connected to the lower surface of the central ring shell (14), and the top end of the pressurizing pump body (39) extends to the outside of the docking shell (31).
4. The pick tooth body surface brazing coating device according to claim 3 is characterized in that: The fixing device (2) comprises a fixing bottom shell (21), a traction shaft cylinder (23) is fixedly connected to the axis of the inner wall of the fixing bottom shell (21), drainage grooves (22) are evenly arranged in the inner cavity of the fixing bottom shell (21), a clamping device (4) is evenly arranged on the upper surface of the fixing bottom shell (21), and a drainage device (5) is evenly arranged on the inner wall of the fixing bottom shell (21).
5. The pick tooth body surface brazing coating device according to claim 4, characterized in that: The axis center of the top of the inner cavity of the traction shaft tube (23) is fixedly connected to the bottom end of the traction connecting pipe (15), the bottom end of the diverter pipe (13) extends to the inside of the central ring shell (14), the lower surface of the fixed bottom shell (21) is fixedly connected to the ground, and the bottom of the inner wall of the docking shell (31) and the upper surface of the fixed bottom shell (21) are pressed against each other.
6. The pick tooth body surface brazing layer coating device according to claim 4, characterized in that: The clamping device (4) comprises a limit ring (41), the inner cavity of the limit ring (41) is fixedly connected to a control plate (42), thrust arms (43) are symmetrically arranged on both sides of the control plate (42), one end of the thrust arm (43) away from the control plate (42) is fixedly connected to an arc-shaped clamping plate (44), and the top of the inner cavity of the fixed bottom shell (21) located inside the limit ring (41) is evenly provided with through air holes.
7. The pick tooth body surface brazing coating device according to claim 6, characterized in that: The lower surface of the limiting ring (41) is fixedly connected to the upper surface of the fixed bottom shell (21), the outer surface of the arc-shaped clamping plate (44) is slidably connected to the upper surface of the fixed bottom shell (21), and the outer surface of the arc-shaped clamping plate (44) and the outer surface of the cutting tooth are pressed against each other, and the outer surface of the thrust arm (43) is slidably connected to the inner cavity of the limiting ring (41).
8. The pick tooth body surface brazing coating device according to claim 4, characterized in that: The drainage device (5) comprises a docking bottom shell (51), a drainage turbine (56) is rotatably connected to the axis of the inner wall of the docking bottom shell (51), a heating plate (57) is fixedly connected to the bottom end of the axis of the inner wall of the docking bottom shell (51), a rotating motor (55) is fixedly connected to the axis of the bottom of the inner cavity of the drainage turbine (56), and pressure sensors (52) are evenly arranged on the top of the inner wall of the docking bottom shell (51), and the bottom end of the output shaft of the pressure sensor (52) is fixedly connected to the adsorption pull cylinder (53).
9. The pick tooth body surface brazing coating device according to claim 8, characterized in that: The bottom of the inner cavity of the docking bottom shell (51) is evenly provided with air inlet slots (54), the bottom of the outer surface of the rotating motor (55) is fixedly connected to the axis of the bottom of the inner wall of the docking bottom shell (51), the bottom end of the adsorption pull cylinder (53) is fixedly connected to the air inlet at the middle of the inner wall of the docking bottom shell (51), and the top of the docking bottom shell (51) is fixedly connected to the top of the inner wall of the fixed bottom shell (21).