An automatic welding device for PCD micro-drilling tools

Abstract

The invention relates to the technical field of welding equipment manufacturing, and discloses an automatic welding device for a PCD micro-drill tool, comprising a base, a conveying device fixedly connected to the top of the base, a welding assembly fixedly connected to the top of the base, a feeding assembly fixedly connected to the top of the base, and a pushing mechanism, wherein the pushing mechanism comprises a feeding bin 1 fixedly connected to the top of the base, and an end of the feeding bin 1 close to the welding assembly is fixedly connected to a discharge port, by setting the pushing mechanism, a handle of a micro-drill tool is placed in the feeding bin 1, and then a pushing column 1 is used to push the handle of the micro-drill tool into the welding assembly, so as to complete automatic feeding and welding, and improve the automation degree of the equipment, and after the welding is completed and the micro-drill tool is taken out, the pushing column 1 retreats so that the tool of the next micro-drill tool falls to the front end of the pushing column 1, so as to facilitate the next welding.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment manufacturing, in particular to an automatic welding device for a PCD micro-drill tool. Background Art

[0002] In recent years, as high-hardness materials such as ceramics and single-crystal silicon are widely used in aerospace, semiconductor, 3C electronics and other industries, PCD micro-drills are also increasingly used in micro-hole processing. Among them, PCD micro-drills generally use a welded tool structure, with the drill tip made of PCD material and the drill shank made of cemented carbide or other relatively cheap materials. The PCD drill tip and the cemented carbide drill shank need to be welded together to obtain a PCD micro-drill.

[0003] The patent application with application number CN202311340652.5 discloses an automatic and efficient welding device for PCD micro-drill tools, which relates to the field of welding equipment manufacturing technology, including a base, on which a mounting platform for clamping a PCD drill tip and a chuck for clamping a drill shank are provided, the mounting platform is connected to a driving mechanism, the chuck is adaptively connected to a Z-axis moving mechanism, and a pressure spring is provided on the chuck facing the mounting platform side; during welding, the driving mechanism is driven to drive the mounting platform to move and / or rotate in an operable manner, so that the welding groove on the PCD drill tip is aligned with the welding top on the drill shank; and the Z-axis moving mechanism is driven to drive the drill shank to be pressed down onto the PCD drill tip coated with solder, and the pressure spring is used to detect the welding pressure during the pressing process of the drill shank, so that the solder is heated to be completely melted within a limited welding pressure range and under the action of a high-frequency induction welding mechanism, and the PCD drill tip and the drill shank are fixed after cooling, thereby improving the welding quality and welding efficiency.

[0004] When the above equipment is in use, the staff is required to install, disassemble and align the materials of the micro-drill tool. The operation process is complicated and the degree of automation is low, which is not conducive to production needs. Summary of the invention

[0005] The object of the present invention is to provide an automatic welding device for PCD micro-drill tools to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic welding device for PCD micro-drilling tools, comprising a base, a conveying device fixedly connected to the top of the base, a welding assembly fixedly connected to the top of the base, a feeding assembly fixedly connected to the top of the base, and further comprising:

[0007] The pushing mechanism comprises a feeding bin 1 fixedly connected to the top of the base, the feeding bin 1 is fixedly connected to an end thereof close to the welding assembly with a feeding port, the top of the base is also fixedly connected to an annular plate, the outer wall of the annular plate is fixedly connected to the feeding bin 1, the inner wall of the annular plate is fixedly connected to a sliding column, the moving track of the sliding plate 1 is limited by the sliding column, the inner wall of the annular plate is rotatably connected to a threaded column through a bearing, the outer wall of the sliding column is movably connected to the sliding plate 1, the outer wall of the threaded column is threadedly connected to the sliding plate 1, the threaded column is driven to rotate by a motor 1, and then the forward and backward movement of the sliding plate 1 is controlled, and then the forward and backward movement of the sliding plate 1 is controlled. Control the position of the push column one, the outer wall of the annular plate is fixedly connected to the motor two, the output end of the motor two is rotatably connected to the threaded column one, the outer wall of the sliding plate one is fixedly connected to the pressure detection device, the end of the pressure detection device away from the sliding plate one is fixedly connected to the push column one, after the tool body and the tool handle of the micro-drill tool are in contact, the pressure detection device will continue to move forward until the pressure detection device detects that the pressure of the push column one reaches the standard, and the pressure detection device stops moving, the outer wall of the pressure detection device is provided with a spring, one end of the spring is fixedly connected to the pressure detection device, and the end of the spring away from the pressure detection device is fixedly connected to the push column one.

[0008] According to the above technical solution, the welding assembly includes a base plate, and the front and rear ends of the top of the base plate are fixedly connected with connecting rings, and a gear 1 is rotatably connected between the two connecting rings, and one of the connecting rings is fixedly connected with a motor 1 on the side away from the gear 1, and the output end of the motor 1 is fixedly connected to the gear 1, and the gear 1 is driven to rotate by the motor 1 to provide power for the rotation of the sleeve 1.

[0009] According to the above technical solution, the inner wall of the connecting ring is rotatably connected to sleeve one through a bearing, the outer wall of sleeve one is fixedly connected to gear two, gear one is meshed with gear two, and the inner wall of sleeve one is fixedly connected to a welding gun, wherein three welding guns are arranged on the inner wall of sleeve one, thereby reducing the movement and rotation angle of the sleeve, avoiding contact between the extended baffle and gear one, and ensuring the normal operation of the equipment.

[0010] According to the above technical solution, the outer wall of the sleeve one is fixedly connected to a U-shaped plate, the end of the U-shaped plate away from the sleeve one is fixedly connected to a push rod one, the end of the push rod one close to the U-shaped plate is fixedly connected to a baffle, the baffle penetrates the sleeve one and extends to the inner wall of the sleeve one, the outer wall of the baffle is movably connected to the sleeve one, and when the tool body of the micro-drill tool enters the welding assembly, it will abut against the baffle, thereby ensuring the welding position of the micro-drill tool, and there is no need for the staff to adjust the welding point position of the micro-drill tool.

[0011] According to the above technical scheme, the loading assembly includes a hollow shell, the top of the base is fixedly connected to the hollow shell, the end of the base close to the welding assembly is fixedly connected to a discharge shell, the inner wall of the discharge shell is fixedly connected to a push rod 2, the bottom of the push rod 2 is fixedly connected to a fixed plate, the outer wall of the fixed plate is movably connected to the discharge shell, a discharge hole is provided on the side of the hollow shell away from the discharge shell, the outer wall of the hollow shell is fixedly connected to the conveying device, after the cutter body enters the discharge shell and determines the position, the fixed plate is driven downward by the push rod 2 to fix the cutter body of the micro-drill tool, to ensure that the cutter body will not move when the handle of the micro-drill tool applies pressure to the cutter body under the drive of the pushing mechanism.

[0012] According to the above technical solution, the inner wall of the hollow shell is movably connected with a sliding plate 2, the outer wall of the sliding plate 2 is fixedly connected with a push rod 4, and the end of the push rod 4 away from the sliding plate 2 is fixedly connected to the hollow shell. Through the position of the sliding plate 2 through the push rod four hole, the circular hole and the inner wall of the discharge shell are aligned when the cutter body is loaded, and the through hole and the inner wall of the discharge shell are aligned when the material is unloaded.

[0013] According to the above technical solution, a circular hole is opened on the outer wall of the sliding plate 2, and a through hole is opened on the outer wall of the sliding plate 2. A feeding bin 2 is fixedly connected to the top of the sliding plate 2. The feeding bin 2 penetrates the sliding plate 2 and extends to the inner wall of the circular hole. After the micro-drill tool is welded, the through hole, the discharge hole and the notch of the discharge shell are in the same straight line. As the loading assembly releases the fixation of the micro-drill tool, the welded micro-drill tool will pop out from the loading assembly under the elastic force of the pushing mechanism and be sent into the conveying device to complete automatic unloading.

[0014] According to the above technical solution, the inner wall of the circular hole is fixedly connected to a push rod three, the front end of the push rod three is fixedly connected to a sliding sleeve, the outer wall of the sliding sleeve is movably connected to the circular hole, the side of the sliding sleeve away from the push rod three is fixedly connected to an elastic component, the end of the elastic component away from the sliding sleeve is fixedly connected to a push column two, and the outer wall of the push column two is movably connected to the sliding sleeve.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0016] 1. The present invention arranges a pushing mechanism to place the handle of the micro-drill tool in a feed bin 1, and then uses a pushing column 1 to push the handle of the micro-drill tool into a welding assembly to complete automatic loading and welding, thereby improving the degree of automation of the equipment. After the welding is completed and the micro-drill tool is taken out, the pushing column 1 retreats so that the tool of the next micro-drill tool falls to the front end of the pushing column 1, which is convenient for the next welding.

[0017] 2. The present invention sets a welding assembly, and drives the sleeve to rotate through a gear, so that the welding gun can weld the micro-drill tool. At the same time, the tool body of the micro-drill tool enters the welding assembly and abuts against the baffle. In this way, the welding position of the micro-drill tool can be ensured, and the staff is prevented from adjusting the position of the welding point of the micro-drill tool, thereby improving the degree of automation of the equipment.

[0018] 3. The present invention can push the cutter body of the micro-drill tool into the welding assembly and fix the cutter body of the micro-drill tool by setting a feeding assembly, without the need for staff to load and unload, thereby improving the automation level of the equipment.

[0019] 4. The present invention sets a loading assembly. After the equipment completes the welding of the micro-drill tool, the loading assembly will make the through hole, the discharge hole and the notch of the discharge shell be in the same straight line. In this way, after the micro-drill tool is welded, as the loading assembly releases the fixation of the micro-drill tool, the micro-drill tool will pop out of the loading assembly under the elastic force of the pushing mechanism and be sent to the conveying device to complete automatic unloading without the need for staff operation, thereby improving the degree of automation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of a welding assembly of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal parts of the welding assembly of the present invention;

[0024] Figure 4 It is a schematic diagram of the driving mechanism of the present invention;

[0025] Figure 5 It is a cross-sectional view of the internal parts of the pushing mechanism of the present invention;

[0026] Figure 6 is a schematic diagram of a feeding assembly of the present invention;

[0027] Figure 7 It is a rear schematic diagram of the feeding assembly of the present invention;

[0028] Figure 8 It is a schematic diagram of the internal parts of the feeding assembly of the present invention;

[0029] Fig. 9 is a cross-sectional view of the internal parts of the feeding assembly of the present invention;

[0030] In the figure: 1, base; 101, conveying device; 11, welding assembly; 111, bottom plate; 112, connecting ring; 113, gear 1; 114, motor 1; 115, sleeve 1; 116, gear 2; 117, welding gun; 118, U-shaped plate; 119, push rod 1; 1110, baffle; 2, pushing mechanism; 201, feed bin 1; 202, discharge port; 203, annular plate; 204, sliding column; 205, threaded column; 206, motor 2; 20 7. Sliding plate one; 208. Pressure detection device; 209. Push column one; 2010. Spring; 3. Feeding assembly; 301. Hollow shell; 302. Discharging shell; 303. Push rod two; 304. Fixed plate; 305. Sliding plate two; 306. Round hole; 307. Through hole; 308. Feed bin two; 309. Push rod three; 3010. Sliding sleeve; 3011. Elastic assembly; 3012. Push column two; 3013. Discharging hole; 3014. Push rod four. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1: See Figure 1-Figure 3 The present invention provides a technical solution: an automatic welding device for PCD micro-drilling tools, comprising a base 1, a conveying device 101 is fixedly connected to the top of the base 1, a welding assembly 11 is fixedly connected to the top of the base 1, a feeding assembly 3 is fixedly connected to the top of the base 1, and further comprising:

[0033] The welding assembly 11 includes a bottom plate 111, and the front and rear ends of the top of the bottom plate 111 are fixedly connected to a connecting ring 112, and a gear 113 is rotatably connected between the two connecting rings 112. A motor 114 is fixedly connected to the side of one of the connecting rings 112 away from the gear 113, and the output end of the motor 114 is fixedly connected to the gear 113. The inner wall of the connecting ring 112 is rotatably connected to a sleeve 115 through a bearing, and the outer wall of the sleeve 115 is fixedly connected to a gear 2 116. The gear 113 is meshed with the gear 2 116. The inner wall of the sleeve 115 is fixedly connected to a welding gun 117, and the outer wall of the sleeve 115 is fixedly connected to a U-shaped plate 118, and the U-shaped plate 118 is away from the sleeve 113. One end of 15 is fixedly connected with a push rod 119, and one end of the push rod 119 close to the U-shaped plate 118 is fixedly connected with a baffle 1110. Before welding the equipment, it is necessary to move the blade of the micro-drill tool into the sleeve 115 first. At this time, the blade of the micro-drill tool contacts with the baffle 1110 to prevent the blade of the micro-drill tool from continuing to move, so as to fix the position of the blade of the micro-drill tool. After the feeding component 3 completes the fixation of the blade of the micro-drill tool, the baffle 1110 is pulled outward by the push rod 119 to allow the handle of the micro-drill tool to contact the blade. The baffle 1110 penetrates the sleeve 115 and extends to the inner wall of the sleeve 115, and the outer wall of the baffle 1110 is movably connected with the sleeve 115.

[0034] The working principle of this embodiment is as follows: when the blade and handle of the micro-drill tool are in the sleeve 115, the motor 114 is started to drive the gear 113 to rotate, the rotation of the gear 113 will drive the gear 2 116 to rotate, the rotating gear 2 116 drives the sleeve 115 to rotate, and the rotating sleeve drives the welding gun 117 working inside to rotate, so as to weld the blade and handle of the micro-drill tool.

[0035] Example 2: Based on Example 1, please refer to Figure 4-Figure 5, the pushing mechanism 2 includes a feeding bin 201 fixedly connected to the top of the base 1, and one end of the feeding bin 201 close to the welding assembly 11 is fixedly connected to the discharge port 202. The top of the base 1 is also fixedly connected to an annular plate 203, the outer wall of the annular plate 203 is fixedly connected to the feeding bin 201, the inner wall of the annular plate 203 is fixedly connected to a sliding column 204, the inner wall of the annular plate 203 is rotatably connected to a threaded column 205 through a bearing, the outer wall of the sliding column 204 is movably connected to a sliding plate 207, the outer wall of the threaded column 205 is threadedly connected to the sliding plate 207, the outer wall of the annular plate 203 is fixedly connected to a motor 206, and the output end of the motor 206 is rotatably connected to the threaded column 205 Then, the outer wall of the sliding plate 207 is fixedly connected with a pressure detection device 208, and the end of the pressure detection device 208 away from the sliding plate 207 is fixedly connected with a pushing column 209. After the equipment completes the welding of a tool, the motor 206 drives the threaded column 205 to reverse and retracts the pushing column 209, which makes the bottom of the feeding bin 201 lose the obstruction of the pushing column 209, allowing the tool handle to automatically fall to the bottom of the feeding bin 201, which is convenient for the next welding. The outer wall of the pressure detection device 208 is provided with a spring 2010, one end of the spring 2010 is fixedly connected to the pressure detection device 208, and the end of the spring 2010 away from the pressure detection device 208 is fixedly connected to the pushing column 209.

[0036] The working principle of this embodiment is as follows: when it is necessary to feed the material into the welding assembly 11, the motor 206 is started to drive the threaded column 205 to rotate, the rotating threaded column 205 drives the sliding plate 207 to move, the moving sliding plate 207 drives the pressure detection device 208 and the pushing column 209 to move, the moving pushing column 209 pushes out the knife handle placed at the bottom of the feeding bin 201, and allows the knife handle to contact the blade in the welding assembly 11. After the knife handle and the blade contact, the sliding plate 207 continues to move until the pressure detection device 208 reaches a preset value and then stops moving. After the welding is completed, as the loading assembly 3 releases the fixation of the tool, the pushing column 209 is pushed forward by the elastic force of the spring 2010. The movement of the pushing column 209 pushes the blade out of the loading assembly 3 and feeds it onto the conveying device 101.

[0037] Example 3: Based on Example 1, please refer to Figure 6-Figure 9The feeding assembly 3 includes a hollow shell 301, the top of the base 1 is fixedly connected to the hollow shell 301, the end of the base 1 close to the welding assembly 11 is fixedly connected to the discharge shell 302, the inner wall of the discharge shell 302 is fixedly connected to the push rod 303, the bottom of the push rod 303 is fixedly connected to the fixing plate 304, the outer wall of the fixing plate 304 is movably connected to the discharge shell 302, the side of the hollow shell 301 away from the discharge shell 302 is provided with a discharge hole 3013, the outer wall of the hollow shell 301 is fixedly connected to the conveying device 101, and the inner wall of the hollow shell 301 is movably connected to the sliding plate 303. 05, the outer wall of the sliding plate 2 305 is fixedly connected with a push rod 4 3014, and the end of the push rod 4 3014 away from the sliding plate 2 305 is fixedly connected to the hollow shell 301, and the outer wall of the sliding plate 2 305 is provided with a circular hole 306, and the outer wall of the sliding plate 2 305 is also provided with a through hole 307. After the equipment completes the fixing of the blade, the push column 2 3012 is first retracted, and then the push rod 4 3014 is started to drive the sliding plate 2 305 to move, and the through hole 307 is aligned with the notch of the discharge shell 302. When the equipment completes the welding of the tool, the push rod 2 303 is started to fix the fixed plate 30 4 is lifted to release the fixation of the tool. At this time, the tool will be pushed by the push column 1 209 to pass through the discharge shell 302, the through hole 307, and the discharge hole 3013, and be sent to the conveying device 101, completing the automatic unloading of the tool, which is convenient for the next welding. The top of the sliding plate 2 305 is fixedly connected with the feed bin 2 308, and the feed bin 2 308 penetrates the sliding plate 2 305 and extends to the inner wall of the circular hole 306. The inner wall of the circular hole 306 is fixedly connected with the push rod 3 309, and the front end of the push rod 309 is fixedly connected with the sliding sleeve 3010. As the component fixes the blade, the push rod 309 is pushed. Rod three 309 drives the sliding sleeve 3010 and the pushing column two 3012 to retract. At this time, the blade in the feeding bin two 308 will fall to the bottom of the feeding bin two 308 under its own weight, which is convenient for the equipment to push the blade into the welding assembly 11 next time. The outer wall of the sliding sleeve 3010 is movably connected to the circular hole 306, and the side of the sliding sleeve 3010 away from the push rod three 309 is fixedly connected with the elastic component 3011, and the end of the elastic component 3011 away from the sliding sleeve 3010 is fixedly connected with the pushing column two 3012, and the outer wall of the pushing column two 3012 is movably connected to the sliding sleeve 3010.

[0038] The working principle of this embodiment is as follows: when welding is required, push rod four 3014 drives sliding plate two 305 to move, so that the circular hole 306 is aligned with the notch of the discharge shell 302, and then push rod three 309 is started to drive the sliding sleeve 3010 to move, and the moving sliding sleeve 3010 pushes the blade body at the bottom of the feed bin two 308 into the discharge shell 302, and allows the blade body to rest on the baffle 1110, and then push rod two 303 is started to drive the fixed plate 304 to descend to fix the blade body.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic welding device for a PCD micro-drill tool, comprising a base (1), a conveying device (101) fixedly connected to the top of the base (1), a welding assembly (11) fixedly connected to the top of the base (1), and a feeding assembly (3) fixedly connected to the top of the base (1), characterized in that: Also includes: A pushing mechanism (2), the pushing mechanism (2) comprising a feed bin (201) fixedly connected to the top of a base (1), the feed bin (201) having an end fixedly connected to a discharge port (202) near the welding assembly (11), the top of the base (1) also having an annular plate (203) fixedly connected, the outer wall of the annular plate (203) being fixedly connected to the feed bin (201), the inner wall of the annular plate (203) being fixedly connected to a sliding column (204), the inner wall of the annular plate (203) being rotatably connected to a threaded column (205) via a bearing, the outer wall of the sliding column (204) being movably connected to a sliding plate (207), the outer wall of the threaded column (205) being rotatably connected to the sliding plate (207), (207) threaded connection, the outer wall of the annular plate (203) is fixedly connected to a second motor (206), the output end of the second motor (206) is rotatably connected to a threaded column (205), the outer wall of the sliding plate (207) is fixedly connected to a pressure detection device (208), one end of the pressure detection device (208) away from the sliding plate (207) is fixedly connected to a push column (209), the outer wall of the pressure detection device (208) is sleeved with a spring (210), one end of the spring (210) is fixedly connected to the pressure detection device (208), and the end of the spring (210) away from the pressure detection device (208) is fixedly connected to a push column (209); The loading assembly (3) comprises a hollow shell (301), the top of the base (1) is fixedly connected to the hollow shell (301), one end of the base (1) close to the welding assembly (11) is fixedly connected to a discharge shell (302), the inner wall of the discharge shell (302) is fixedly connected to a push rod 2 (303), the bottom of the push rod 2 (303) is fixedly connected to a fixing plate (304), the outer wall of the fixing plate (304) is movably connected to the discharge shell (302), a discharge hole (3013) is provided on a side of the hollow shell (301) away from the discharge shell (302), and the outer wall of the hollow shell (301) is fixedly connected to the conveying device (101); The inner wall of the hollow shell (301) is movably connected to the sliding plate 2 (305), the outer wall of the sliding plate 2 (305) is fixedly connected to the push rod 4 (3014), and one end of the push rod 4 (3014) away from the sliding plate 2 (305) is fixedly connected to the hollow shell (301); The outer wall of the second sliding plate (305) is provided with a circular hole (306), and the outer wall of the second sliding plate (305) is also provided with a through hole (307). The top of the second sliding plate (305) is fixedly connected with a second feeding bin (308), and the second feeding bin (308) penetrates the second sliding plate (305) and extends to the inner wall of the circular hole (306); The inner wall of the circular hole (306) is fixedly connected to a push rod three (309), the front end of the push rod three (309) is fixedly connected to a sliding sleeve (3010), the outer wall of the sliding sleeve (3010) is movably connected to the circular hole (306), the side of the sliding sleeve (3010) away from the push rod three (309) is fixedly connected to an elastic component (3011), the end of the elastic component (3011) away from the sliding sleeve (3010) is fixedly connected to a push column two (3012), and the outer wall of the push column two (3012) is movably connected to the sliding sleeve (3010).

2. The automatic welding device for PCD micro-drilling tools according to claim 1, characterized in that: The welding assembly (11) comprises a bottom plate (111), the front and rear ends of the top of the bottom plate (111) are fixedly connected to connecting rings (112), a gear one (113) is rotatably connected between the two connecting rings (112), a motor one (114) is fixedly connected to a side of one of the connecting rings (112) away from the gear one (113), and an output end of the motor one (114) is fixedly connected to the gear one (113).

3. The automatic welding device for PCD micro-drilling tool according to claim 2, characterized in that: The inner wall of the connecting ring (112) is rotatably connected to a sleeve one (115) via a bearing, the outer wall of the sleeve one (115) is fixedly connected to a gear two (116), the gear one (113) is meshed with the gear two (116), and the inner wall of the sleeve one (115) is fixedly connected to a welding gun (117).

4. The automatic welding device for PCD micro-drilling tool according to claim 3, characterized in that: The outer wall of the sleeve one (115) is fixedly connected to a U-shaped plate (118); one end of the U-shaped plate (118) away from the sleeve one (115) is fixedly connected to a push rod one (119); one end of the push rod one (119) close to the U-shaped plate (118) is fixedly connected to a baffle (1110); the baffle (1110) passes through the sleeve one (115) and extends to the inner wall of the sleeve one (115); the outer wall of the baffle (1110) is movably connected to the sleeve one (115).

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