Small-aperture deep hole welding device and method

Abstract

The invention discloses a small-aperture deep hole welding device and method, and relates to the technical field of welding equipment. Comprising a welding gun body, an air cylinder is fixedly connected to the front end of the welding gun body, a clamping groove is formed in the front end of the air cylinder, a welding pipe is arranged on the front side of the air cylinder, a clamping piece is fixedly connected to the rear end of the welding pipe, the clamping piece is connected with the clamping groove in a clamped mode, a conductive ring is fixedly connected to the outer wall of the welding pipe, and a welding head is arranged at the front end of the welding pipe. During use, the air cylinder is used for pushing the welded pipe to move downwards, the welded pipe goes deep into a deep hole, the position of the welding head is monitored through the camera, when the welding head moves to the position where welding is needed, the conductive ring is powered on, the welding head is heated, the welding head is used for melting a tin wire to achieve the welding effect, and in the welding process, the air pump is started synchronously, and the welding head is powered off. And negative pressure is formed in the collecting box, so that smoke dust and harmful substances generated during welding can be sucked into the collecting box to be stored, and a large amount of harmful gas generated during welding is prevented from harming human health.

Description

Technical Field

[0001] The invention belongs to the technical field of welding equipment, and in particular relates to a small-diameter deep-hole welding device and method. Background Art

[0002] In today's industrial manufacturing field, the application of small-diameter deep-hole welding technology is becoming more and more extensive, involving the production links of many key industries such as electronic equipment, aerospace components, automotive parts, and medical devices. With the rapid development of these industries, the requirements for product precision, reliability, and processing of complex structural parts are increasing, and the quality and efficiency of small-diameter deep-hole welding have become key technical bottlenecks that need to be broken through.

[0003] Traditional welding methods have exposed many shortcomings when facing small-diameter deep-hole welding tasks. For example, it is difficult to accurately deliver the welding head to a specific position inside the deep hole, resulting in large deviations in the welding position, affecting product quality and performance; there is no proper collection and treatment mechanism for smoke and harmful substances generated by welding, resulting in a harsh working environment and endangering the health of operators. This seriously restricts the efficiency and quality of small-diameter deep-hole welding, and it is difficult to meet the urgent needs of modern industrial production for high-precision, high-efficiency, and environmentally friendly welding processes. Summary of the invention

[0004] The purpose of the present invention is to provide a small-diameter deep-hole welding device and method in view of the existing problems, so as to solve the technical problems raised in the background technology.

[0005] The present invention is achieved through the following technical solutions: a small-aperture deep-hole welding device and method, comprising a welding gun body, the front end of the welding gun body is fixedly connected to a cylinder, the front end of the cylinder is provided with a slot, the front side of the cylinder is provided with a welding pipe, the rear end of the welding pipe is fixedly connected to a clamping piece, the clamping piece is clamped with the slot, the outer wall of the welding pipe is fixedly connected to a conductive ring, the front end of the welding pipe is provided with a welding head, the inner wall of the welding gun body is symmetrically provided with hollow sleeves, the front end of the hollow sleeve is fixedly connected to a bracket, the front side wall of the bracket is fixedly connected to a supporting plate, the inner wall of the supporting plate is fixedly installed with an electric push rod, the output end of the electric push rod is fixedly connected to a camera, the camera is located below the welding head, the outer wall of the supporting plate is fixedly connected to a protective plate, the protective plate is located on the outside of the camera, and a bent pipe is provided on the welding gun body, the bent pipe is located between two hollow sleeves, and the front end of the bent pipe passes through the supporting plate and extends to the outside of the welding head.

[0006] Preferably, a dust hood is symmetrically connected to the support plate, the dust hood is located obliquely behind the welding head, the dust hood is connected to the hollow sleeve, the outer wall of the welding gun body is fixedly connected to a collecting box, one end of the hollow sleeve away from the dust hood extends to the interior of the collecting box, the bottom of the collecting box is fixedly connected to a vacuum pump, and the input end of the vacuum pump is connected to the collecting box.

[0007] Preferably, the outer wall of the welded pipe is fixedly connected with a positioning ring, the top of the bracket is fixedly connected with a fixing frame, the fixing frame is provided with a fixing ring, the inner wall of the fixing ring is threadedly connected with a fastening bolt, and the upper end of the fastening bolt is threadedly connected to the positioning ring.

[0008] Preferably, the outer wall of the welding gun body is provided with a protective sleeve, and the protective sleeve is located outside the cylinder.

[0009] Preferably, the outer wall of the welding gun body is fixedly connected with a fixing seat.

[0010] Preferably, a retractable mechanism is provided at the rear end of the welding gun body, and a solder wire is wound around the retractable mechanism.

[0011] A small-diameter deep hole welding method comprises the following steps: S1. Pass the solder wire through the bent pipe and make contact with the welding head at the front end of the welding pipe; S2, push the welding pipe into the deep hole, start the electric push rod to push the camera forward, and monitor the position of the welding head through the camera; S3, energize the conductive ring so that the welding pipe heats the welding head; S4. After the welding head is heated, the solder wire is melted and welding is performed in the deep hole.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The present invention provides a small-aperture deep-hole welding device and method. When in use, the operator holds the welding gun body and aims the welding head at the deep hole, uses the cylinder to push the welding pipe downward to make the welding pipe penetrate into the deep hole, and monitors the position of the welding head through the camera. When the welding head moves to the position where welding is required, the conductive ring is energized to heat the welding head, and the solder wire is melted through the welding head to achieve the welding effect. During welding, the vacuum pump is started synchronously to form a negative pressure inside the collection box, so that the smoke and harmful substances generated during welding can be sucked into the collection box for storage, thereby preventing a large amount of harmful gases from being generated during welding to endanger human health.

[0013] 2. The present invention provides a small-diameter deep-hole welding device and method. During the welding process, the solder wire is advanced to the front end of the bent pipe in real time through the retracting and releasing mechanism to provide conditions for welding. The welding pipe drives the hollow sleeve to expand and contract during the downward movement, and the hollow sleeve provides support for the bracket. The welding pipe is limited and protected by the bracket to prevent the welding pipe from colliding with the inner wall of the deep hole when being pushed forward, thereby improving the durability of the equipment.

[0014] 3. The present invention provides a small-diameter deep-hole welding device and method. Before welding, the fastening bolts are screwed to make the upper ends of the fastening bolts dock with the positioning rings, so that the bracket supports the welding pipe, which improves the stability of the welding pipe during operation. The position of the welding gun body can be fixed by the fixing seat, which enhances the stability of the equipment and reduces problems such as inaccurate welding position caused by human factors.

[0015] 4. The present invention provides a small-aperture deep-hole welding device and method. Before and after the welding work is carried out, the camera is controlled to move forward by an electric push rod, so that the camera can monitor the position of the welding head in real time, thereby reducing the error of the welding work. After the welding work is completed, the welding position can be photographed by the camera, thereby facilitating the operator to understand the welding situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial structural schematic diagram of the cylinder of the present invention; Figure 3 It is a structural schematic diagram of the bracket of the present invention; Figure 4 It is a front view of the present invention; Figure 5 It is a schematic diagram of the structure of the pipe sleeve of the present invention; Figure 6 It is a structural schematic diagram of the welded pipe of the present invention; Figure 7 For the present invention Figure 1 Enlarged view of point A in the middle; Figure 8 For the present invention Figure 5 Enlarged view of point B in the middle.

[0017] In the figure: 1. welding gun body; 2. protective cover; 3. cylinder; 4. slot; 5. conductive ring; 6. welding pipe; 7. clamp; 8. positioning ring; 9. hollow sleeve; 10. bracket; 11. fixing frame; 12. fixing ring; 13. fastening bolt; 14. supporting plate; 15. welding head; 16. retracting and releasing mechanism; 17. bending pipe; 18. dust hood; 19. protective plate; 20. electric push rod; 21. camera; 22. collection box; 23. vacuum pump; 24. fixing seat. DETAILED DESCRIPTION

[0018] 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.

[0019] Embodiment 1: See also Figure 1-Figure 8 As shown, the present invention provides a technical solution: a small-aperture deep-hole welding device, comprising a welding gun body 1, a cylinder 3 is fixedly connected to the front end of the welding gun body 1, a slot 4 is provided at the front end of the cylinder 3, a welding pipe 6 is arranged on the front side of the cylinder 3, a clamp 7 is fixedly connected to the rear end of the welding pipe 6, the clamp 7 is clamped with the slot 4, a conductive ring 5 is fixedly connected to the outer wall of the welding pipe 6, a welding head 15 is arranged at the front end of the welding pipe 6, a hollow sleeve 9 is symmetrically arranged on the inner wall of the welding gun body 1, a bracket 10 is fixedly connected to the front end of the hollow sleeve 9, and a bearing 15 is fixedly connected to the front side wall of the bracket 10. A support plate 14 is provided, and an electric push rod 20 is fixedly installed on the inner wall of the support plate 14. A camera 21 is fixedly connected to the output end of the electric push rod 20. The camera 21 is located below the welding head 15. A protective plate 19 is fixedly connected to the outer wall of the support plate 14. The protective plate 19 is located outside the camera 21. A bend pipe 17 is provided on the welding gun body 1. The bend pipe 17 is located between the two hollow sleeves 9. The front end of the bend pipe 17 passes through the support plate 14 and extends to the outside of the welding head 15. A retracting mechanism 16 is provided at the rear end of the welding gun body 1. A solder wire is wound around the retracting mechanism 16. When in use, the operator holds the welding gun body 1, aligns the welding head 15 with the deep hole, and then starts the cylinder 3 to push the welding pipe 6 downward to make the welding pipe 6 penetrate into the deep hole. The position of the welding head 15 is monitored by the camera 21. When the welding head 15 moves to the position where welding is required, the conductive ring 5 is energized to heat the welding head 15. The solder wire is melted by the welding head 15 to achieve the welding effect. During the welding process, the solder wire is advanced to the front end of the elbow 17 in real time through the retracting mechanism 16 to provide working conditions for welding. During the downward movement of the welding pipe 6, the hollow sleeve 9 is driven to expand and contract. The bracket 10 is used to limit and protect the welding pipe 6 to prevent the welding pipe 6 from colliding with the inner wall of the deep hole when being pushed, thereby improving the durability of the device. A dust hood 18 is symmetrically connected to the support plate 14. The dust hood 18 is located obliquely behind the welding head 15. The dust hood 18 is connected to the hollow sleeve 9. A collection box 22 is fixedly connected to the outer wall of the welding gun body 1. One end of the hollow sleeve 9 away from the dust hood 18 extends to the inside of the collection box 22. An air pump 23 is fixedly connected to the bottom of the collection box 22. The input end of the air pump 23 is connected to the collection box 22. When welding, the air pump 23 is started synchronously to form a negative pressure inside the collection box 22, so that the smoke and harmful substances generated during welding can be sucked into the collection box 22 for storage, so as to prevent a large amount of harmful gases generated during welding from endangering human health. The outer wall of the welding pipe 6 is fixedly connected with a positioning ring 8, the top of the bracket 10 is fixedly connected with a fixing frame 11, the fixing frame 11 is provided with a fixing ring 12, the inner wall of the fixing ring 12 is threadedly connected with a fastening bolt 13, the upper end of the fastening bolt 13 is threadedly connected with the positioning ring 8, when welding, the fastening bolt 13 is screwed to make the upper end of the fastening bolt 13 butt with the positioning ring 8, so that the bracket 10 supports the welding pipe 6, which improves the stability of the welding pipe 6 during operation; The outer wall of the welding gun body 1 is provided with a protective sleeve 2, which is located outside the cylinder 3. The protective sleeve 2 protects the cylinder 3 and reduces the damage to the cylinder 3. The outer wall of the welding gun body 1 is fixedly connected with a fixing seat 24. When welding, the position of the welding gun body 1 can be fixed by the fixing seat 24, which enhances the stability of the equipment and reduces the problems of inaccurate welding position caused by human factors. In this embodiment, before and after the welding work is carried out, the electric push rod 20 is used to control the camera 21 to move forward, so that the camera 21 can monitor the position of the welding head 15 in real time, thereby reducing the error of the welding work. After the welding work is completed, the welding position can be photographed by the camera 21, thereby facilitating the operator to understand the welding situation.

[0020] Embodiment 2: The present invention provides a technical solution: a small-diameter deep-hole welding method, comprising the following steps: S1, pass the solder wire through the elbow 17 and make contact with the welding head 15 at the front end of the welding pipe 6; S2, push the welding pipe 6 into the deep hole, and start the electric push rod 20 to push the camera 21 forward, and detect the position of the welding head 15 through the camera 21; S3, energize the conductive ring 5 so that the welding pipe 6 heats the welding head 15; S4, the welding head 15 is heated to melt the solder wire and perform welding in the deep hole.

[0021] Working principle: When in use, the operator holds the welding gun body 1, aligns the welding head 15 with the deep hole, and then starts the cylinder 3 to push the welding pipe 6 downward so that the welding pipe 6 penetrates into the deep hole. The position of the welding head 15 is monitored by the camera 21. When the welding head 15 moves to the position where welding is required, the conductive ring 5 is energized to heat the welding head 15. The solder wire is melted by the welding head 15 to achieve the welding effect. During the welding process, the solder wire is advanced to the front end of the elbow 17 in real time through the retracting mechanism 16 to provide working conditions for welding. During the downward movement of the welding pipe 6, the hollow sleeve 9 is driven to expand and contract. The bracket 10 is used to limit and protect the welding pipe 6 to prevent the welding pipe 6 from colliding with the inner wall of the deep hole when being pushed forward, thereby improving the durability of the equipment. During welding, the vacuum pump 23 is started synchronously to form a negative pressure inside the collection box 22, which can It is able to suck the smoke and harmful substances generated during welding into the collection box 22 for storage, so as to prevent a large amount of harmful gases from being generated during welding and endangering human health. When performing welding work, the fastening bolt 13 is screwed to make the upper end of the fastening bolt 13 dock with the positioning ring 8, so that the bracket 10 supports the welding pipe 6, which improves the stability of the welding pipe 6 during work. The position of the welding gun body 1 can be fixed by the fixing seat 24, which enhances the stability of the equipment and reduces the problems such as inaccurate welding position caused by human factors. Before and after the welding work, the electric push rod 20 controls the camera 21 to move forward, so that the camera 21 can monitor the position of the welding head 15 in real time, reduce the error of the welding work, and after the welding work is completed, the welding position can be photographed by the camera 21, so as to facilitate the operator to understand the welding situation.

[0022] 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. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small-diameter deep-hole welding device, comprising a welding gun body (1), characterized in that: The front end of the welding gun body (1) is fixedly connected to a cylinder (3), a slot (4) is provided at the front end of the cylinder (3), a welding pipe (6) is provided at the front side of the cylinder (3), a clamping piece (7) is fixedly connected to the rear end of the welding pipe (6), the clamping piece (7) is clamped with the slot (4), a conductive ring (5) is fixedly connected to the outer wall of the welding pipe (6), a welding head (15) is provided at the front end of the welding pipe (6), a hollow sleeve (9) is symmetrically provided on the inner wall of the welding gun body (1), a bracket (10) is fixedly connected to the front end of the hollow sleeve (9), and the front side wall of the bracket (10) is fixedly connected to the outer wall of the welding pipe (6). A support plate (14) is provided, an electric push rod (20) is fixedly mounted on the inner wall of the support plate (14), an output end of the electric push rod (20) is fixedly connected to a camera (21), the camera (21) is located below a welding head (15), a protective plate (19) is fixedly connected to the outer wall of the support plate (14), the protective plate (19) is located outside the camera (21), a bent pipe (17) is provided on the welding gun body (1), the bent pipe (17) is located between two hollow sleeves (9), and the front end of the bent pipe (17) passes through the support plate (14) and extends to the outside of the welding head (15).

2. A small-diameter deep-hole welding device according to claim 1, characterized in that: A dust hood (18) is symmetrically connected to the support plate (14), the dust hood (18) is located obliquely behind the welding head (15), the dust hood (18) is connected to the hollow sleeve (9), the outer wall of the welding gun body (1) is fixedly connected to a collection box (22), one end of the hollow sleeve (9) away from the dust hood (18) extends to the interior of the collection box (22), the bottom of the collection box (22) is fixedly connected to an air pump (23), and the input end of the air pump (23) is connected to the collection box (22).

3. A small-diameter deep-hole welding device according to claim 1, characterized in that: The outer wall of the welded pipe (6) is fixedly connected to a positioning ring (8), the top of the bracket (10) is fixedly connected to a fixing frame (11), a fixing ring (12) is provided on the fixing frame (11), the inner wall of the fixing ring (12) is threadedly connected to a fastening bolt (13), and the upper end of the fastening bolt (13) is threadedly connected to the positioning ring (8).

4. A small-diameter deep-hole welding device according to claim 1, characterized in that: The outer wall of the welding gun body (1) is provided with a protective sleeve (2), and the protective sleeve (2) is located outside the cylinder (3).

5. The small-diameter deep-hole welding device according to claim 1, characterized in that: A fixing seat (24) is fixedly connected to the outer wall of the welding gun body (1).

6. A small-diameter deep-hole welding device according to claim 1, characterized in that: A retracting and releasing mechanism (16) is provided at the rear end of the welding gun body (1), and a solder wire is wound around the retracting and releasing mechanism (16).

7. A small-diameter deep-hole welding method according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1, passing the solder wire through the bent pipe (17) to make contact with the welding head (15) at the front end of the welding pipe (6); S2, pushing the welding pipe (6) into the deep hole, and starting the electric push rod (20) to push the camera (21) forward, and monitoring the position of the welding head (15) through the camera (21); S3, energizing the conductive ring (5) so that the welding pipe (6) heats the welding head (15); S4, the welding head (15) is heated to melt the solder wire and perform welding in the deep hole.

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