High-efficiency precise welding equipment special for automobile part production

Abstract

The invention relates to the technical field of automobile part welding, in particular to efficient and precise welding equipment special for automobile part production, which comprises a workbench, a clamping mechanism for fixing an interior trim part is arranged on the workbench, and the clamping mechanism comprises an outer positioning ring sliding on the workbench; a welding assembly for welding the interior trim parts is arranged above the outer positioning ring and comprises an ultrasonic welding gun capable of moving up and down; a positioning mechanism for assisting welding flux positioning is arranged on one side of the outer positioning ring; and the positioning mechanism comprises a guide cylinder fixed to the workbench, and an inner positioning ring is arranged on the guide cylinder in a sliding mode. According to the efficient and precise welding equipment special for automobile part production, welding flux can be enclosed in the inner positioning ring in advance; the situation that the welding quality of the interior trim parts is affected by deviation of welding spots under the condition that the shape characteristics of the welding flux and the welding spots are uneven is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts welding, in particular to a special welding device for producing efficient and precise automobile parts. Background Art

[0002] Ultrasonic welding of automotive interior parts is a welding technology that uses high-frequency vibration energy to connect plastic parts together. It is widely used in the manufacture of automotive interior parts, such as dashboards, door panels, storage boxes, vents, etc.

[0003] Currently, when ultrasonic welding is performed on automotive interior parts, workers are required to place specific solder (circular ring) at the welding point, and then use handheld ultrasonic welding equipment to extrude and weld it. Due to the shape characteristics of the solder and the unevenness of the welding point, the stability and position of the solder placement will be uncontrollable, and the welding point may even be offset, thereby affecting the quality of the welding of the interior parts. Summary of the invention

[0004] The purpose of the present invention is to provide a special welding equipment for the production of efficient and precise automobile parts, which can pre-enclose the solder inside the inner positioning ring to avoid the shape characteristics of the solder and the unevenness of the solder joints, and the offset solder joints affecting the welding quality of the interior parts.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a special welding equipment for the production of efficient and precise automobile parts, comprising a workbench, on which a clamping mechanism for fixing interior decoration parts is arranged, and the clamping mechanism includes an outer positioning ring sliding on the workbench; a welding assembly for welding the interior decoration parts is arranged above the outer positioning ring, and the welding assembly includes an ultrasonic welding gun that can move up and down; a positioning mechanism for assisting the positioning of the solder is arranged on one side of the outer positioning ring; the positioning mechanism includes a guide cylinder fixed on the workbench, on which an inner positioning ring is slid, the inner positioning ring and the outer positioning ring are on the same axis and the inner positioning ring slides on the inner side of the outer positioning ring; a connecting pipe is connected between the inner positioning ring and the guide cylinder, and when the connecting pipe follows the inner positioning ring to move to a certain position along the guide cylinder, the connecting pipe is connected with the inside of the guide cylinder; a collecting cylinder is installed on the outer positioning ring, and a vent hole is opened on the inner positioning ring.

[0006] Preferably, a placement table for placing interior decoration parts is installed on the workbench, and an adjusting rod is installed on the outer positioning ring, and the outer positioning ring slides above the placement table through the adjusting rod.

[0007] Preferably, a hydraulic rod is installed at one end of the ultrasonic welding gun, the hydraulic rod is installed on a workbench, and the output end of the hydraulic rod drives the ultrasonic welding gun to move.

[0008] Preferably, the guide cylinder is fixed on a workbench, an air pump is installed at the bottom of the guide cylinder, and an output end of the air pump is connected to the bottom of the guide cylinder.

[0009] Preferably, a telescopic spring is installed inside the guide cylinder, a piston block sliding inside the guide cylinder is installed above the telescopic spring, and a guide rod moving synchronously with the ultrasonic welding gun is installed above the guide cylinder.

[0010] Preferably, the guide rod extends into the interior of the guide cylinder and contacts the piston block during the movement, and an air outlet is provided at the bottom of the guide cylinder.

[0011] Preferably, a blocking block is slidably provided in the middle part of the connecting pipe, a magnetic rod with a telescopic function is installed on one side of the guide rod, one end of the magnetic rod is magnetically connected to the blocking block, and a limiting groove for limiting the sliding of the blocking block is installed on the connecting pipe.

[0012] Preferably, an outer ring sliding along the guide cylinder is installed at one end of the connecting pipe, and the upper outer side of the inner positioning ring slides in contact with the inner wall of the outer positioning ring.

[0013] Preferably, a sealing sheet is installed on one side of the inner positioning ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention uses a clamping mechanism to fix; then slide the outer ring, the outer ring slides along the guide cylinder, and at the same time the outer ring drives the inner positioning ring to move downward through the connecting tube, thereby through the annular design of the inner positioning ring, the inner positioning ring further positions the welding point, and then the solder is placed on the welding point inside the inner positioning ring. It is also explained that since the size of the welding head in the prior art is similar to the size of the solder, the inner diameter of the inner positioning ring is adapted to the size of the welding head, and the solder can be pre-enclosed inside the inner positioning ring, and the solder can be pre-enclosed inside the inner positioning ring to avoid the shape characteristics of the solder and the unevenness at the welding point, and the offset welding point affects the welding quality of the interior decoration.

[0016] 2. The present invention fixes the solder on the welding point in advance, and then the output end of the hydraulic rod drives the ultrasonic welding gun to move down close to the solder for welding. During the downward movement of the ultrasonic welding gun, the ultrasonic welding gun drives the guide rod to move down, so that one end of the guide rod extends into the interior of the guide cylinder and squeezes the piston block, so that the piston block squeezes the piston block and pushes the gas inside the guide cylinder to move; the downward movement distance of the ultrasonic welding gun can be intuitively observed by using the external scale of the guide rod, thereby avoiding excessive downward movement of the ultrasonic welding gun, which leads to excessive welding and affects the welding quality.

[0017] 3. The present invention utilizes a design in which one side of the closing piece contacts the inner wall of the outer positioning ring. When the outer positioning ring fixes the interior decoration and the inner positioning ring is sleeved inside the outer positioning ring to pre-fix the solder, two closing pieces are utilized to make the outer positioning ring sleeved on the outside of the inner positioning ring to form a certain closed space. At this time, after the above-mentioned gas cools the welding point, the gas is transmitted to the inside of the collecting tube through the vent hole, thereby collecting the welding smoke generated during welding into the inside of the collecting tube. The one-way valve design on the collecting tube connected to the collecting tube can prevent the welding smoke from escaping after being collected, thereby facilitating the subsequent collection and treatment by the staff. In this way, the welding smoke can be collected, the welding environment can be improved, and the escape and accumulation of welding smoke can be avoided, which affects the health of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a partial cross-sectional view of the clamping mechanism of the present invention;

[0020] Figure 3 The second partial cross-sectional view of the clamping mechanism of the present invention;

[0021] Figure 4 This is a partial cross-sectional view of the present invention;

[0022] Figure 5 It is the second partial cross-sectional view of the present invention;

[0023] Figure 6 It is a partial cross-sectional view of the positioning mechanism of the present invention;

[0024] Figure 7 The second partial cross-sectional view of the positioning mechanism of the present invention;

[0025] Figure 8 The third is a partial cross-sectional view of the positioning mechanism of the present invention.

[0026] In the figure: 1. workbench; 2. clamping mechanism; 21. placement table; 22. adjusting rod; 23. outer positioning ring; 3. welding assembly; 31. hydraulic rod; 32. ultrasonic welding gun; 4. positioning mechanism; 41. guide cylinder; 42. outer ring; 43. inner positioning ring; 44. guide rod; 45. collecting cylinder; 47. telescopic spring; 48. air pump; 49. magnetic rod; 410. collecting tube; 411. piston block; 412. closing plate; 413. vent; 414. connecting pipe; 415. blocking block; 416. air outlet; 417. limiting groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. 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.

[0028] The present invention provides a special welding device for producing high-efficiency and precision automobile parts, comprising a workbench 1, on which a clamping mechanism 2 for fixing interior decoration parts is arranged, the clamping mechanism 2 comprises an outer positioning ring 23 sliding on the workbench 1; a welding assembly 3 for welding the interior decoration parts is arranged above the outer positioning ring 23, the welding assembly 3 comprises an ultrasonic welding gun 32 movable up and down; a placing table 21 for placing the interior decoration parts is installed on the workbench 1, an adjusting rod 22 is installed on the outer positioning ring 23, the outer positioning ring 23 slides above the placing table 21 through the adjusting rod 22, a hydraulic rod 31 is installed at one end of the ultrasonic welding gun 32, the hydraulic rod 31 is installed on the workbench 1, and the output end of the hydraulic rod 31 drives the ultrasonic welding gun 32 to move;

[0029] See also Figures 1 to 5 As shown, the interior decoration part is placed on the placement table 21, and then the position of the outer positioning ring 23 is adjusted by the adjustment rod 22, so that the lower end of the outer positioning ring 23 contacts and squeezes the interior decoration part, and then the position of the outer positioning ring 23 is fixed, thereby the interior decoration part can be fixed, and the position of the welding point can be fixed at a specific position. The arc design of the outer positioning ring 23 can assist in determining the position of the welding point and improve the working efficiency of welding;

[0030] The output end of the hydraulic rod 31 is used to drive the ultrasonic welding gun 32 to weld the welding point.

[0031] A positioning mechanism 4 for assisting the positioning of the solder is provided on one side of the outer positioning ring 23; the positioning mechanism 4 comprises a guide cylinder 41 fixed on the workbench 1, an inner positioning ring 43 is slidably arranged on the guide cylinder 41, the inner positioning ring 43 and the outer positioning ring 23 are on the same axis and the inner positioning ring 43 slides inside the outer positioning ring 23; a connecting pipe 414 is connected between the inner positioning ring 43 and the guide cylinder 41, when the connecting pipe 414 follows the inner positioning ring 43 and moves to a certain position along the guide cylinder 41, the connecting pipe 414 is connected with the inside of the guide cylinder 41; a collecting cylinder 45 is installed on the outer positioning ring 23, and a vent hole 413 is provided on the inner positioning ring 43; the guide cylinder 41 is fixed on the workbench 1, an air pump 48 is installed at the bottom of the guide cylinder 41, the output end of the air pump 48 is connected to the bottom of the guide cylinder 41, and a telescopic spring 47 is installed inside the guide cylinder 41, which can extend the guide cylinder 41 to the inner side of the guide cylinder 41. A piston block 411 sliding inside the guide cylinder 41 is installed above the compression spring 47, and a guide rod 44 moving synchronously with the ultrasonic welding gun 32 is installed above the guide cylinder 41. During the movement of the guide rod 44, it extends into the interior of the guide cylinder 41 and contacts the piston block 411. An air outlet 416 is provided at the bottom of the guide cylinder 41, and a block 415 is slidably provided at the middle part of the connecting pipe 414. A magnetic suction rod 49 with a telescopic function is installed on one side of the guide rod 44, and one end of the magnetic suction rod 49 is magnetically connected to the block 415, and a limiting groove 417 for limiting the sliding of the block 415 is installed on the connecting pipe 414. An outer ring 42 sliding along the guide cylinder 41 is installed at one end of the connecting pipe 414, and the upper outer side of the inner positioning ring 43 slides in contact with the inner wall of the outer positioning ring 23, and a sealing piece 412 is installed on one side of the inner positioning ring 43.

[0032] See also Figures 3 to 8 As shown, after the position of the welding point of the interior decoration part is determined and fixed by the above-mentioned clamping mechanism 2; then the outer ring 42 is slid, and the outer ring 42 slides along the guide cylinder 41, and at the same time, the outer ring 42 drives the inner positioning ring 43 to move downward through the connecting pipe 414, thereby the inner positioning ring 43 further positions the welding point through the annular design of the inner positioning ring 43, and then the solder is placed on the welding point inside the inner positioning ring 43. In addition, it is explained that since the size of the welding head in the prior art is similar to the size of the solder, the inner diameter of the inner positioning ring 43 is adapted to the size of the welding head, and the solder can be pre-enclosed inside the inner positioning ring 43 to prevent the solder from being offset due to external influences, and the offset welding point affects the welding quality of the interior decoration part;

[0033] After the solder is pre-fixed on the soldering point, the output end of the hydraulic rod 31 drives the ultrasonic welding gun 32 to move down close to the solder for welding. During the downward movement of the ultrasonic welding gun 32, the ultrasonic welding gun 32 drives the guide rod 44 to move down, so that one end of the guide rod 44 extends into the guide cylinder 41 and squeezes the piston block 411, so that the piston block 411 squeezes the piston block 411 and pushes the gas inside the guide cylinder 41 to move; the downward movement distance of the ultrasonic welding gun 32 can be intuitively observed by using the external scale of the guide rod 44, thereby avoiding excessive downward movement of the ultrasonic welding gun 32, which leads to excessive welding and affects the welding quality;

[0034] During the downward movement of the guide rod 44, the outer ring 42 slides to the bottom of the guide cylinder 41, and the outer ring 42 is connected to the air outlet 416. However, since the block 415 is located inside the connecting pipe 414, the block 415 closes the connecting pipe 414. Therefore, the downward movement of the piston block 411 will change the internal air pressure of the guide cylinder 41; in addition, the magnetic rod 49 synchronously follows the guide rod 44 to move downward. After one end of the magnetic rod 49 moves to a certain position, one end of the magnetic rod 49 will pass through the limiting groove 417 and be magnetically attracted to the block 415. After the ultrasonic welding gun 32 completes welding, the ultrasonic welding gun 32 drives the guide rod 44 and the magnetic rod 49 to move in the opposite direction. The magnetic attraction force of the magnetic rod 49 drives the block 415 to slide, and the block 415 slides to the limit groove. During the contact process of the groove 417, the block 415 will cancel the closed connecting pipe 414. At this time, the internal air pressure of the guide cylinder 41 will be instantly released through the air outlet 416. The air outlet 416 uses the connecting pipe 414 to transmit the gas to the inside of the outer positioning ring 23. At this time, the welding head has completed welding and moved upward. At this time, the gas can cool the welding point position to avoid the heat of welding being transferred to other non-welding areas, thereby improving the efficiency and quality of welding work; it is also explained that after the inside of the guide cylinder 41 is pressurized, the amount of gas transmitted can be adjusted according to the actual situation to avoid excessive air volume and wind force, which affects the quality of welding. Therefore, the amount of gas transmission generated in the technical solution is designed to be appropriate to cool the welding point without affecting its welding quality;

[0035] See also Figure 7 as well as Figure 8As shown, the outer side of the upper part of the inner positioning ring 43 is designed to fit the inner wall of the outer positioning ring 23, and the design of using one side of the closing piece 412 to contact the inner wall of the outer positioning ring 23 can be used. When the outer positioning ring 23 fixes the interior decoration and the inner positioning ring 43 is sleeved inside the outer positioning ring 23 to pre-fix the solder, the two closing pieces 412 can be used to make the outer positioning ring 23 sleeved on the outside of the inner positioning ring 43 to form a certain closed space. At this time, after the above-mentioned gas cools the weld point, the gas is transmitted to the inside of the collecting tube 45 through the vent hole 413, thereby collecting the welding smoke generated during welding into the inside of the collecting tube 45. The one-way valve design on the collecting tube 410 connected to the collecting tube 45 can prevent the welding smoke from escaping after being collected, which is convenient for the staff to collect and process it later. In this way, the welding smoke can be collected, the welding environment can be improved, and the escape and accumulation of welding smoke can be avoided, which affects the health of the staff.

[0036] Working principle: Place the interior decoration part on the placement table 21, and then adjust the position of the outer positioning ring 23 through the adjustment rod 22, so that the lower end of the outer positioning ring 23 contacts and squeezes the interior decoration part, and then fix the position of the outer positioning ring 23, thereby fixing the interior decoration part and fixing the welding point position at a specific position;

[0037] After the welding point position of the interior decoration part is determined and fixed by the above-mentioned clamping mechanism 2; then slide the outer ring 42, the outer ring 42 slides along the guide cylinder 41, and at the same time, the outer ring 42 drives the inner positioning ring 43 to move downward through the connecting pipe 414, thereby through the annular design of the inner positioning ring 43, the inner positioning ring 43 further positions the welding point, and then the solder is placed on the welding point inside the inner positioning ring 43; after the solder is pre-fixed on the welding point, the output end of the hydraulic rod 31 drives the ultrasonic welding gun 32 to move down close to the solder for welding, and in the process of the ultrasonic welding gun 32 moving downward, the ultrasonic welding gun 32 drives the guide rod 44 to move downward, so that one end of the guide rod 44 extends into the interior of the guide cylinder 41 and squeezes the piston block 411, so that the piston block 411 squeezes the piston block 411 and pushes the internal gas of the guide cylinder 41 to move; the downward movement distance of the ultrasonic welding gun 32 can be intuitively observed using the external scale of the guide rod 44.

[0038] During the downward movement of the guide rod 44, the outer ring 42 slides to the bottom of the guide cylinder 41, and the outer ring 42 is connected to the air outlet 416. However, since the block 415 is located inside the connecting pipe 414, the block 415 closes the connecting pipe 414. Therefore, the downward movement of the piston block 411 will change the internal air pressure of the guide cylinder 41. In addition, the magnetic rod 49 moves downward synchronously with the guide rod 44. After one end of the magnetic rod 49 moves to a certain position, one end of the magnetic rod 49 will pass through the limiting groove 417 and be magnetically attracted to the block 415. When the ultrasonic welding gun 32 completes the welding After that, the ultrasonic welding gun 32 drives the guide rod 44 and the magnetic rod 49 to move in the opposite direction, and the magnetic attraction of the magnetic rod 49 drives the block 415 to slide. When the block 415 slides to contact the limiting groove 417, the block 415 will cancel the closed connecting pipe 414. At this time, the internal air pressure of the guide cylinder 41 will be instantly released through the air outlet 416. The air outlet 416 uses the connecting pipe 414 to transmit the gas to the inside of the outer positioning ring 23. At this time, the welding head has finished welding and moved upward. At this time, the gas can cool the welding point position to prevent the welding heat from being transferred to other non-welding areas;

[0039] The outer side of the upper part of the inner positioning ring 43 is designed to fit the inner wall of the outer positioning ring 23, and the one side of the closing piece 412 is designed to contact the inner wall of the outer positioning ring 23. When the outer positioning ring 23 fixes the interior decoration and the inner positioning ring 43 is sleeved inside the outer positioning ring 23 to pre-fix the solder, the two closing pieces 412 can be used to make the outer positioning ring 23 sleeved on the outside of the inner positioning ring 43 to form a certain closed space. At this time, after the above-mentioned gas cools the weld point, the gas is transmitted to the inside of the collecting tube 45 through the vent hole 413, so that the welding smoke generated during welding can be collected into the inside of the collecting tube 45.

[0040] 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 high-efficiency and precision welding device for automobile parts production, comprising a workbench (1), characterized in that: The workbench (1) is provided with a clamping mechanism (2) for fixing the interior decoration part, and the clamping mechanism (2) comprises an outer positioning ring (23) sliding on the workbench (1); A welding assembly (3) for welding the interior decoration is arranged above the outer positioning ring (23), and the welding assembly (3) comprises an ultrasonic welding gun (32) that can move up and down; a positioning mechanism (4) for assisting the positioning of the solder is arranged on one side of the outer positioning ring (23); The positioning mechanism (4) comprises a guide cylinder (41) fixed on the workbench (1), an inner positioning ring (43) slidingly arranged on the guide cylinder (41), the inner positioning ring (43) and the outer positioning ring (23) being coaxially located and the inner positioning ring (43) slidingly arranged inside the outer positioning ring (23); A connecting pipe (414) is connected between the inner positioning ring (43) and the guide cylinder (41). When the connecting pipe (414) moves to a certain position along the guide cylinder (41) following the inner positioning ring (43), the connecting pipe (414) is connected to the inside of the guide cylinder (41); A collecting cylinder (45) is installed on the outer positioning ring (23), and a vent hole (413) is provided on the inner positioning ring (43).

2. The high-efficiency and precision welding equipment for automobile parts production according to claim 1 is characterized in that: A placement table (21) for placing interior decoration parts is installed on the workbench (1), an adjustment rod (22) is installed on the outer positioning ring (23), and the outer positioning ring (23) slides above the placement table (21) through the adjustment rod (22).

3. The high-efficiency and precision welding equipment for automobile parts production according to claim 1 is characterized in that: A hydraulic rod (31) is installed at one end of the ultrasonic welding gun (32), the hydraulic rod (31) is installed on the workbench (1), and the output end of the hydraulic rod (31) drives the ultrasonic welding gun (32) to move.

4. The high-efficiency and precision welding equipment for automobile parts production according to claim 1 is characterized in that: The guide cylinder (41) is fixed on the workbench (1), an air pump (48) is installed at the bottom of the guide cylinder (41), and the output end of the air pump (48) is connected to the bottom of the guide cylinder (41).

5. The high-efficiency and precision welding equipment specially used for producing automobile parts according to claim 1, characterized in that: A telescopic spring (47) is installed inside the guide cylinder (41), a piston block (411) sliding inside the guide cylinder (41) is installed above the telescopic spring (47), and a guide rod (44) moving synchronously with the ultrasonic welding gun (32) is installed above the guide cylinder (41).

6. The high-efficiency and precision welding equipment for automobile parts production according to claim 5 is characterized in that: During the movement, the guide rod (44) extends into the interior of the guide cylinder (41) and contacts the piston block (411). An air outlet (416) is provided at the bottom of the guide cylinder (41).

7. The high-efficiency and precision welding equipment for automobile parts production according to claim 6 is characterized in that: A blocking block (415) is slidably disposed in the middle portion of the connecting pipe (414), a magnetic rod (49) having a telescopic function is installed on one side of the guide rod (44), one end of the magnetic rod (49) is magnetically connected to the blocking block (415), and a limiting groove (417) for limiting the sliding of the blocking block (415) is installed on the connecting pipe (414).

8. The high-efficiency and precision welding equipment specially used for producing automobile parts according to claim 1, characterized in that: An outer ring (42) sliding along the guide cylinder (41) is installed at one end of the connecting pipe (414), and the upper outer side of the inner positioning ring (43) slides in contact with the inner wall of the outer positioning ring (23).

9. The high-efficiency and precision welding equipment specially used for producing automobile parts according to claim 1, characterized in that: A sealing sheet (412) is installed on one side of the inner positioning ring (43).

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