Welding equipment and welding process for key chain processing

Abstract

The invention relates to the technical field of welding equipment, and discloses a welding equipment and a welding process for key chain processing. Through the setting of a clamping component, when clamping the key chain to be welded, the worker only needs to place the key chain to be welded on a boss. Then, as the moving platform moves, the connecting rod is separated from the constraint of the pressing block, so that the compressed supporting spring can push the push rod, driving the arc-shaped clamping plates on both sides of the boss to approach the key chain to be welded, automatically clamping and fixing the key chain, making it difficult for the key chain to loosen during welding, thereby improving the welding accuracy of the key chain. After the welding is completed, as the moving platform returns, the pressing block constrains the connecting rod again, so that the connecting rod pulls the arc-shaped clamping plate to automatically release the clamped key chain, thereby reducing the labor intensity of the workers, saving a lot of time, and improving the production efficiency of the key chain.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to welding equipment and a welding process for key chain processing. Background Art

[0002] When producing key chains, welding equipment is required to firmly weld the key chains and metal parts together; Chinese patent CN221516628U discloses a key chain welding device, the welding mechanism of the device can adjust the welding angle arbitrarily, and its positioning mechanism can better adapt to the welding processing of key chains of different sizes and positions. However, when positioning the key chain to be processed, the device needs to manually and repeatedly turn the adjusting screw to open and close the clamping plate to place the key chain to be welded. As the production continues, the physical strength of the workers will be gradually consumed, which not only increases the labor intensity of the workers, but also reduces the production efficiency because it takes time to turn the adjusting screw. In addition, since the strength of the clamping plate to clamp the key chain cannot be accurately controlled when the adjusting screw is manually turned, the clamping force of the clamping plate is too large, so that the key chain cannot fall from the card frame by gravity after the key chain is welded, or the clamping force of the clamping plate is too small, so that the key chain is easy to loosen during welding, affecting the welding accuracy of the key chain. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a welding device and a welding process for key chain processing to overcome the above-mentioned technical problems existing in the prior art.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a welding device and a welding process for key chain processing, comprising a machine body and a welding chamber installed on the machine body, the machine body is provided with a material placement component, a clamping component, a driving component and a welding component, the material placement component comprises a moving table and a placement plate, two moving tables are respectively installed on the two ends of the machine body, the welding chamber is located between the two moving tables, a placement plate is installed on the moving table, a plurality of bosses are arranged on the placement plate, the placement plate can move in the vertical direction on the moving table, initially the placement plate moves upward to the maximum stroke, so that a plurality of bosses extend out of the upper side of the one end table, the bosses Used to place the key chain to be welded, the clamping assembly includes an arc-shaped clamping plate and a push rod, the arc-shaped clamping plate is connected to the push rod, the push rod is engaged with the moving platform, and an arc-shaped clamping plate is arranged on both sides of each boss, the driving assembly is engaged with the bottom of the moving platform, and the driving assembly can drive the moving platform to move on the body, when the moving platform moves toward the welding room, the placing plate moves downward to the maximum stroke, so that the push rod pushes the arc-shaped clamping plate to clamp and fix the key chain, the welding assembly includes a welding gun, and the welding gun is installed in the welding room. The welding gun can move in the welding room to weld the key chains on the moving platform one by one.

[0005] Preferably, the movable platform includes a lower movable plate and an upper movable plate, a column is arranged between the lower movable plate and the upper movable plate, the upper and lower sides of the column are respectively fixedly connected to the upper side of the lower movable plate and the lower side of the upper movable plate, the upper side of the lower movable plate is provided with a mounting groove, the mounting groove is located on both sides of the upper movable plate, the bottom of the lower movable plate is also fixedly connected to the base plate through the column, the lower side of the lower movable plate is fixedly connected to a trigger plate, and the trigger plate is located on one side of the base plate.

[0006] Preferably, a plurality of placement grooves are provided on the upper side of the upper movable plate, and the plurality of placement grooves are arranged uniformly in sequence on the upper movable plate, the placement grooves are matched with the bosses, and the bosses can move up and down in the placement grooves, and spring grooves are provided on the inner walls on both sides corresponding to the placement grooves, the push rod is located in the spring groove, and one end of the push rod passes through the spring groove and extends out of the upper movable plate.

[0007] Preferably, the boss is provided with receiving grooves on both sides facing the spring groove, and the receiving grooves are used to receive the arc-shaped clamping plate. Electric telescopic rods are fixedly installed on both ends of the base plate, and the output ends of the electric telescopic rods slide through the lower movable plate and are fixedly connected to the bottoms of both ends of the placement plate.

[0008] Preferably, two slide rails are fixedly mounted on the machine body, and the slide rails pass through the welding chamber. Both sides of the lower movable plate are slidably mounted on the slide rails through sliders. A mounting seat is fixedly mounted on the machine body, and the mounting seat is located between the two slide rails. A plurality of infrared sensors are fixedly mounted on the machine body, and the infrared sensors are respectively distributed in the ends of the machine body and the welding chamber, and the infrared sensors correspond to the trigger sheets. Two cover shells are fixedly mounted on the machine body, and the two cover shells are respectively located on both sides of the welding chamber, and the cover shells cover the components on both ends of the machine body, and a notch is opened on the cover shell, and the notch exposes the upper movable plate, and pressure blocks are fixedly mounted inside the cover shell, and the pressure blocks are distributed on both sides of the notch.

[0009] Preferably, the outer side of the arc-shaped clamping plate is fixedly connected to the end of the push rod, and a support spring is sleeved on the push rod. The two ends of the support spring respectively abut against the outer side of the arc-shaped clamping plate and the inner wall of the spring groove. The support spring is in a compressed state and can push the arc-shaped clamping plate to move toward the middle of the boss.

[0010] Preferably, the clamping assembly also includes a fixed plate and a connecting rod, the protruding end of the push rod is fixedly connected to the fixed plate, a fixed seat is fixedly installed on the side of the fixed plate away from the push rod, a joint is rotatably installed on the fixed seat, the upper end of the connecting rod is rotatably connected to the lower end of the joint, and the lower end of the connecting rod is rotatably installed in the installation groove.

[0011] Preferably, the driving assembly includes a driving motor, which is fixedly mounted on the machine body and connected to the infrared sensor through an electrical signal. A transmission screw is rotatably connected to the mounting seat, and the end of the transmission screw is connected to the output shaft of the driving motor through a toothed belt. The lower movable plate is engaged with the transmission screw through a threaded sleeve.

[0012] Preferably, the welding assembly also includes a lifting cylinder and a robotic arm, the lifting cylinder is fixedly installed on the top of the welding chamber, the output shaft of the lifting cylinder passes through the welding chamber, the robotic arm is slidably installed in the welding chamber, the output shaft of the lifting cylinder is fixedly connected to the upper side of the robotic arm, and the welding gun is movably installed on the lower side of the robotic arm.

[0013] Preferably, a welding process for key fob processing uses a welding device.

[0014] Compared with the prior art, the present invention provides a welding device and a welding process for key chain processing, which has the following beneficial effects: 1. The welding equipment and the welding process for key chain processing, through the setting of the clamping component, when clamping the key chain to be welded, the worker only needs to place the key chain to be welded on the boss, and then with the movement of the mobile platform, the connecting rod is separated from the constraint of the pressing block, so that the compressed support spring can push the push rod, driving the arc-shaped clamping plates on both sides of the boss to approach the key chain to be welded, automatically clamping and fixing the key chain, making it difficult for the key chain to loosen during welding, thereby improving the welding accuracy of the key chain. After the welding is completed, with the return of the mobile platform, the pressing block constrains the connecting rod again, so that the connecting rod pulls the arc-shaped clamping plate to automatically release the clamped key chain, thereby reducing the labor intensity of the workers, saving a lot of time, and improving the production efficiency of the key chain.

[0015] 2. The welding equipment and the welding process for key chain processing, through the setting of the placing component, when placing the key chain, the placing plate pushes the boss out of the placing groove, which is convenient for workers to place the key chain to be welded on the boss, and when welding, the boss will shrink into the placing groove with the key chain on it, so that the clamping component can fix the key chain to be welded on the boss, and after the key chain on a mobile station is welded, another mobile station will replace the previous mobile station to enter the welding room for welding, thereby further improving the welding efficiency of the equipment, and when the mobile station is reset with the welded key chain, as the arc-shaped clamping plate opens, the placing plate will drive the boss to push the welded key chain out of the placing groove, which is convenient for workers to collect the welded key chains and place the next batch of key chains to be welded. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional display structure of the present invention; Figure 2 It is a schematic diagram of the side view structure of the material placing assembly of the present invention; Figure 3 for Figure 2 A local enlarged structural schematic diagram; Figure 4 This is a schematic diagram of the positional relationship between the material placement component and the clamping component; Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at B; Figure 6 It is a schematic diagram of the top view of the material placing assembly of the present invention; Figure 7 It is a schematic diagram of the side view structure of the driving assembly of the present invention; Figure 8 It is a schematic diagram of the planar structure of the welding assembly of the present invention.

[0017] In the figure: 1, machine body; 11, slide rail; 12, mounting seat; 2, welding chamber; 3, cover; 31, notch; 32, pressing block; 4, material placement assembly; 41, moving table; 411, lower moving plate; 4111, mounting groove; 4112, trigger plate; 412, column; 413, upper moving plate; 4131, placement groove; 4132, spring groove; 42, bottom plate; 43, placement plate; 431, boss ;4311. Storage slot;44. Electric telescopic rod;5. Clamping assembly;51. Arc splint;52. Push rod;53. Support spring;54. Fixed plate;55. Fixed seat;56. Joint;57. Connecting rod;6. Driving assembly;61. Driving motor;62. Toothed belt;63. Transmission screw;7. Welding assembly;71. Lifting cylinder;72. Robotic arm;73. Welding gun;8. Infrared sensor. 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] See also Figure 1-Figure 8 A welding device and a welding process for key chain processing, comprising a body 1 and a welding chamber 2 installed on the body 1, the body 1 is provided with a material placement component 4, a clamping component 5, a driving component 6 and a welding component 7, the material placement component 4 comprises a moving table 41 and a placing plate 43, the two moving tables 41 are respectively installed on the two ends of the body 1, the welding chamber 2 is located between the two moving tables 41, a placing plate 43 is installed on the moving table 41, a plurality of bosses 431 are arranged on the placing plate 43, the placing plate 43 can move vertically on the moving table 41, initially the placing plate 43 moves upward to the maximum stroke, so that the plurality of bosses 431 extend out from the upper side of the moving table 41, the bosses 431 are used to place The key chain to be welded, the clamping assembly 5 includes an arc-shaped clamping plate 51 and a push rod 52, the arc-shaped clamping plate 51 is connected to the push rod 52, the push rod 52 is matched on the moving platform 41, and an arc-shaped clamping plate 51 is arranged on both sides of each boss 431. The driving assembly 6 is matched at the bottom of the moving platform 41, and the driving assembly 6 can drive the moving platform 41 to move on the machine body 1. When the moving platform 41 moves toward the welding chamber 2, the placing plate 43 moves downward to the maximum stroke, so that the push rod 52 pushes the arc-shaped clamping plate 51 to clamp and fix the key chain. The welding assembly 7 includes a welding gun 73, and the welding gun 73 is installed in the welding chamber 2. The welding gun 73 can move in the welding chamber 2 to weld the key chains on the moving platform 41 one by one.

[0020] When in use, the key chain to be welded is placed on the boss 431 extending from the upper movable plate 413. At this time, the welding head 56 is located on one side of the welding chamber 2, close to one of the movable tables 41. After the key chains are placed on the bosses 431 distributed on both sides of the welding chamber 2, the movable table 41 close to the welding head 56 is started. The movable table 41 moves toward the welding chamber 2 under the drive of the driving assembly 6. During this process, the placement plate 43 will drive the boss 431 and the key chain to descend, so that the key chain is located between the arc-shaped clamping plates 51 on both sides of the boss 431. After the placement plate 43 is completely lowered, as the movable table 41 continues to The arc-shaped clamping plates 51 on both sides of the boss 431 move closer to the key chain under the push of the push rod 52, so as to clamp and fix the key chain. After the arc-shaped clamping plates 51 fix the key chain on the boss 431, the movable table 41 enters the welding chamber 2 under the drive of the driving component 6, and then the driving component 6 stops driving the movable table 41. After the movable table 41 stops in the welding chamber 2, the welding head 56 welds from the first key chain on this side to the last key chain in sequence. After welding all the key chains on the movable table 41, the welding head 56 moves to the other side of the welding chamber 2, close to the movable table 41 that has not entered the welding chamber 2 at this time. The moving table 41 is moved out of the welding chamber 2, and then the driving assembly 6 drives the moving table 41 in the welding chamber 2 to return. At the same time, the moving table 41 that has not entered the welding chamber 2 moves into the welding chamber 2 under the drive of the driving assembly 6, and repeats the steps when the last moving table 41 enters the welding chamber 2. After the moving table 41 that moves out of the welding chamber 2 moves out of the welding chamber 2, the push rod 52 pulls the arc clamping plate 51 to the side of the boss 431 and moves away from the key chain, thereby ending the clamping of the key chain slot and releasing the key chain. After the arc clamping plate 51 completely releases the key chain, the placing plate 43 pushes the boss 431 upward. After the moving table 41 stops moving, the boss 431 31 pushes out the welded key chain. At this time, another mobile table 41 has entered the welding chamber 2. The welding head 56 starts to weld the key chain on the mobile table 41 and moves to the initial position. The worker removes the welded key chain on the mobile table 41 outside the welding chamber 2 and places the next batch of key chains to be welded on the boss 431. When all the key chains on the mobile table 41 in the welding chamber 2 are welded, the mobile table 41 in the welding chamber 2 returns under the drive of the driving assembly 6. At the same time, the mobile table 41 outside the welding chamber 2 enters the welding chamber 2 with a new batch of key chains for welding under the drive of the driving assembly 6.

[0021] The difference from the above embodiment is that the moving platform 41 includes a lower moving plate 411 and an upper moving plate 413, and a column 412 is arranged between the lower moving plate 411 and the upper moving plate 413, and the upper and lower sides of the column 412 are respectively fixedly connected to the upper side of the lower moving plate 411 and the lower side of the upper moving plate 413, and a mounting groove 4111 is opened on the upper side of the lower moving plate 411, and the mounting groove 4111 is located on both sides of the upper moving plate 413, and the bottom of the lower moving plate 411 is also fixedly connected to the base plate 42 through the column 412, and the lower side of the lower moving plate 411 is fixedly connected to a trigger sheet 4112, and the trigger sheet 4112 is located on one side of the base plate 42.

[0022] Among them, the column 412 allows a distance between the upper movable plate 413 and the lower movable plate 411 and between the lower movable plate 411 and the bottom plate 42, so that the placement plate 43 has space to move up and down. When the movable platform 41 moves, it will drive the trigger plate 4112 thereunder to move synchronously.

[0023] The difference from the above-mentioned embodiment lies in that a plurality of placement grooves 4131 are provided on the upper side of the upper movable plate 413, and the plurality of placement grooves 4131 are arranged uniformly in sequence on the upper movable plate 413, the placement grooves 4131 are matched with the bosses 431, and the bosses 431 can move up and down in the placement grooves 4131, and spring grooves 4132 are provided on the inner walls on both sides corresponding to the placement grooves 4131, the push rod 52 is located in the spring groove 4132, and one end of the push rod 52 passes through the spring groove 4132 and extends out of the upper movable plate 413.

[0024] Among them, after the placement plate 43 moves down to the maximum stroke, the upper side of the boss 431 is flush with the bottom of the placement groove 4131. When the placement plate 43 moves up to the maximum stroke, the upper side of the boss 431 extends out from the placement groove 4131, which makes it convenient for workers to place the key chain to be welded on the boss 431, and also makes it convenient for workers to pick up the welded key chain from the boss 431.

[0025] The difference from the above embodiment lies in that receiving grooves 4311 are provided on both sides of the boss 431 facing the spring groove 4132, and the receiving grooves 4311 are used to receive the arc-shaped clamping plate 51. Electric telescopic rods 44 are fixedly mounted on both ends of the bottom plate 42, and the output end of the electric telescopic rod 44 slides through the lower movable plate 411 and is fixedly connected to the bottom of both ends of the placement plate 43.

[0026] Among them, when the placement plate 43 needs to be moved up, the electric telescopic rod 44 extends the output shaft to push the placement plate 43 to move upward. As the placement plate 43 moves upward, the arc-shaped clamping plate 51 in the open state is stored in the storage groove 4311. When the placement plate 43 needs to be moved down, the electric telescopic rod 44 retracts the output shaft to pull the placement plate 43 to move downward. As the placement plate 43 moves downward, the arc-shaped clamping plate 51 in the open state rises from the storage groove 4311, so that the key chain on the boss 431 can be clamped.

[0027] The difference from the above embodiment lies in that two slide rails 11 are fixedly mounted on the machine body 1, and the slide rails 11 pass through the welding chamber 2, and both sides of the lower movable plate 411 are slidably mounted on the slide rails 11 through sliders, and a mounting seat 12 is fixedly mounted on the machine body 1, and the mounting seat 12 is located between the two slide rails 11, and a plurality of infrared sensors 8 are fixedly mounted on the machine body 1, and the infrared sensors 8 are respectively distributed at the ends of the machine body 1 and in the welding chamber 2, and the infrared sensors 8 correspond to the trigger sheets 4112, and two cover shells 3 are fixedly mounted on the machine body 1, and the two cover shells 3 are respectively located at both sides of the welding chamber 2, and the cover shells 3 cover the components at both ends of the machine body 1, and a slot 31 is opened on the cover shell 3, and the slot 31 exposes the upper movable plate 413, and a pressure block 32 is fixedly mounted inside the cover shell 3, and the pressure block 32 is distributed on both sides of the slot 31.

[0028] Among them, when the driving component 6 drives the moving platform 41, the moving platform 41 slides on the slide rail 11 through the lower moving plate 411, and when the moving platform 41 moves into the welding chamber 2, the trigger piece 4112 under the moving platform 41 triggers the infrared sensor 8 in the welding chamber 2. The triggered infrared sensor 8 stops the driving component 6 of the moving platform 41 and stops the moving platform 41 in the welding chamber 2. When the moving platform 41 returns with the key chain that has completed welding and leaves the welding chamber 2 and returns to its original position, the trigger piece 4112 under the moving platform 41 triggers another infrared sensor 8, causing the moving platform 41 to stop moving. The cover 3 can prevent the key chain from accidentally falling into the device when it is placed or taken out, causing damage to the device, thereby ensuring the normal operation of the device. The pressure block 32 in the cover 3 is in the shape of a right-angle trapezoid, with its inclined end facing the direction of the welding chamber 2.

[0029] The difference from the above embodiment is that the outer side of the arc-shaped clamping plate 51 is fixedly connected to the end of the push rod 52, and a support spring 53 is provided on the push rod 52. The two ends of the support spring 53 respectively abut against one end of the push rod 52 close to the arc-shaped clamping plate 51 and the inner wall of the spring groove 4132. The support spring 53 is in a compressed state and can push the arc-shaped clamping plate 51 to move toward the middle of the boss 431.

[0030] The difference from the above-mentioned embodiment is that the clamping assembly 5 also includes a fixing plate 54 and a connecting rod 57, the protruding end of the push rod 52 is fixedly connected to the fixing plate 54, a fixing seat 55 is fixedly installed on the side of the fixing plate 54 away from the push rod 52, a joint 56 is rotatably installed on the fixing seat 55, the upper end of the connecting rod 57 is rotatably connected to the lower end of the joint 56, and the lower end of the connecting rod 57 is rotatably installed in the mounting groove 4111.

[0031] Among them, when the arc splint 51 is stored in the storage groove 4311, the support spring 53 is further compressed. At this time, the connecting rod 57 is placed on the plane of the pressure block 32. When the boss 431 moves down to the placement groove 4131 and releases the arc splint 51, as the moving platform 41 continues to move, the connecting rod 57 moves from the plane of the pressure block 32 to the inclined surface and finally breaks away from the pressure block 32. In this process, the compressed support spring 53 begins to push the push rod 52 to make the arc splint 51 move toward the key chain. When the push rod 52 moves, it will pull the fixed plate 54 to move closer to the upward moving plate 413. The moving fixed plate 54 pulls the connecting rod 57 in the same direction through the joint 56. After the inner side of the arc splint 51 contacts the key chain, the arc clamp stops moving, and the compressed support spring 53 The support spring 53 will apply a thrust to the arc-shaped clamping plate 51, so that the arc-shaped clamping plate 51 clamps the key chain. When the moving platform 41 returns, the connecting rod 57 close to the side of the upper moving plate 413 will move along the inclined surface of the pressure block 32. During this process, the pressure block 32 squeezes the connecting rod 57 through the inclined surface, causing the connecting rod 57 to gradually move away from the upper moving plate 413, thereby pulling the fixed plate 54 to move in the same direction, causing the push rod 52 to pull the arc-shaped clamping plate 51 to move toward the receiving groove 4311, thereby ending the clamping of the key chain. When the connecting rod 57 passes through the inclined surface of the extrusion block and reaches the plane of the extrusion block, the connecting rod 57 no longer moves. At this time, the fixed plate 54 pulls the arc-shaped clamping plate 51 to the top of the receiving groove 4311 through the push rod 52, and further compresses the support spring 53.

[0032] The difference from the above embodiment is that the driving assembly 6 includes a driving motor 61, which is fixedly mounted on the body 1, and the driving motor 61 is connected to the infrared sensor 8 through an electrical signal. A transmission screw 63 is rotatably connected to the mounting seat 12, and the end of the transmission screw 63 is connected to the output shaft of the driving motor 61 through a toothed belt 62, and the lower moving plate 411 is fitted on the transmission screw 63 through a threaded sleeve.

[0033] Among them, when it is necessary to drive the mobile platform 41 to enter the welding chamber 2, the driving motor 61 drives the transmission screw 63 to rotate forward through the toothed belt 62, and the mobile platform 41 moves toward the welding chamber 2 driven by the transmission screw 63. When the infrared sensor 8 in the welding chamber 2 is triggered, the driving motor 61 stops working, thereby stopping the movement of the mobile platform 41. When it is necessary to drive the mobile platform 41 to return and reset, the driving motor 61 drives the transmission screw 63 to rotate in the opposite direction through the toothed belt 62, and the mobile platform 41 returns under the drive of the transmission screw 63. When the mobile platform 41 triggers the infrared sensor 8 at the end of the body 1, the driving motor 61 stops working, thereby completing the resetting of the mobile platform 41.

[0034] The difference from the above embodiment is that the welding assembly 7 also includes a lifting cylinder 71 and a robotic arm 72. The lifting cylinder 71 is fixedly installed on the top of the welding chamber 2, and the output shaft of the lifting cylinder 71 passes through the welding chamber 2. The robotic arm 72 is slidably installed in the welding chamber 2. The output shaft of the lifting cylinder 71 is fixedly connected to the upper side of the robotic arm 72, and the welding gun 73 is movably installed on the lower side of the robotic arm 72.

[0035] During welding, the lifting cylinder 71 drives the robotic arm 72 to move up and down in the welding chamber 2 by extending and retracting its output shaft, thereby adjusting the vertical height of the welding gun 73. At the same time, the robotic arm 72 can drive the welding gun 73 to move linearly in the welding chamber 2, moving back and forth from one side of the welding chamber 2 to the other side.

[0036] The difference from the above-mentioned embodiment is that a welding process for key chain processing uses a welding device.

[0037] Working principle: When in use, the key chain to be welded is placed on the boss 431 extending from the upper movable plate 413. At this time, the welding head 56 is located on one side of the welding chamber 2, close to one of the movable platforms 41. After the key chain is placed on the bosses 431 distributed on both sides of the welding chamber 2, the movable platform 41 close to the welding head 56 is started. The movable platform 41 moves toward the welding chamber 2 under the drive of the driving component 6. During this process, the electric telescopic rod 44 retracts the output shaft and pulls the placement plate 43 to move downward. As the placement plate 43 moves downward, the arc-shaped clamping plate 51 in the open state rises from the storage groove 4311, so that the key chain is located on the arcs on both sides of the boss 431. After the placing plate 43 has finished descending, as the moving platform 41 continues to move, the connecting rod 57 moves from the plane of the pressing block 32 to the inclined surface, and finally detaches from the pressing block 32. During this process, the compressed supporting spring 53 starts to push the pushing rod 52, so that the arc-shaped clamping plate 51 moves toward the key ring. When the pushing rod 52 moves, it pulls the fixing plate 54 to move closer to the upward moving plate 413. The moving fixing plate 54 pulls the connecting rod 57 in the same direction through the joint 56. After the inner side of the arc-shaped clamping plate 51 contacts the key ring, the arc-shaped clamping plate stops moving, and the compressed supporting spring 53 applies a thrust to the arc-shaped clamping plate 51, so that the arc-shaped clamping plate 51 clamps and fixes the key ring. After the arc-shaped clamping plate 51 fixes the key chain on the boss 431, the movable platform 41 enters the welding chamber 2 under the drive assembly 6, and the trigger plate 4112 under the movable platform 41 triggers the infrared sensor 8 in the welding chamber 2. The triggered infrared sensor 8 stops the drive assembly 6 of the movable platform 41. After the movable platform 41 stops in the welding chamber 2, the robot arm 72 drives the welding head 56 to weld from the first key chain on this side to the last key chain in sequence. During welding, the lifting cylinder 71 extends and retracts its output shaft belt The movable robot arm 72 moves up and down in the welding room 2, thereby adjusting the height of the welding gun 73 in the vertical direction. After welding all the key chains on the mobile platform 41, the welding head 56 moves to the other side of the welding room 2, close to the mobile platform 41 that has not entered the welding room 2 at this time, and then the driving component 6 drives the mobile platform 41 in the welding room 2 to return, and at the same time, the mobile platform 41 that has not entered the welding room 2 moves into the welding room 2 under the drive of the driving component 6, and repeats the steps when the last mobile platform 41 enters the welding room 2; After the movable table 41 moving out of the welding chamber 2 moves out of the welding chamber 2, the connecting rod 57 close to the side of the upper movable plate 413 will move along the inclined surface of the pressing block 32. In this process, the pressing block 32 squeezes the connecting rod 57 through the inclined surface, so that the connecting rod 57 gradually moves away from the upper movable plate 413, thereby pulling the fixed plate 54 to move in the same direction, so that the push rod 52 pulls the arc-shaped clamping plate 51 to move in the direction of the storage groove 4311, thereby ending the clamping of the key chain. When the connecting rod 57 passes through the inclined surface of the squeezing block and reaches the plane of the squeezing block, the connecting rod 57 no longer moves. At this time, the fixed plate 54 pulls the arc-shaped clamping plate 51 to the top of the storage groove 4311 through the push rod 52, and further compresses the supporting spring 53. After the arc-shaped clamping plate 51 completely releases the key chain, the placing plate 43 pushes the convex spring upward. Table 431, after the trigger sheet 4112 under the mobile table 41 triggers another infrared sensor 8 to stop moving, the boss 431 pushes out the welded key chain. At this time, another mobile table 41 has entered the welding chamber 2, and the welding head 56 starts to weld the key chain on the mobile table 41 and moves to the initial position. The worker removes the welded key chain on the mobile table 41 outside the welding chamber 2, and places the next batch of key chains to be welded on the boss 431. When all the key chains on the mobile table 41 located in the welding chamber 2 are welded, the mobile table 41 in the welding chamber 2 returns under the drive of the driving assembly 6, and at the same time, the mobile table 41 outside the welding chamber 2 enters the welding chamber 2 with a new batch of key chains for welding under the drive of the driving assembly 6.

[0038] 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 welding device, comprising a body and a welding chamber mounted on the body, characterized in that: The machine body is provided with a material placement component, a clamping component, a driving component and a welding component. The material placement component includes a moving platform and a placing plate. Two moving platforms are respectively installed on the two ends of the machine body. The welding chamber is located between the two moving platforms. A placing plate is installed on the moving platform. A plurality of bosses are arranged on the placing plate. The placing plate can move vertically on the moving platform. Initially, the placing plate moves upward to the maximum stroke so that a plurality of bosses extend out of the upper side of the moving platform. The boss is used to place the key chain to be welded. The clamping component includes an arc-shaped clamping plate and a push rod. The arc-shaped clamping plate is connected to the push rod, and the push rod is engaged with the moving platform. An arc-shaped clamping plate is arranged on both sides of each boss. The driving assembly is engaged with the bottom of the moving platform. The driving assembly can drive the moving platform to move on the body. When the moving platform moves toward the welding room, the placement plate moves downward to the maximum stroke, so that the push rod pushes the arc-shaped clamping plate to clamp and fix the key chain. The welding assembly includes a welding gun, which is installed in the welding room. The welding gun can move in the welding room to weld the key chains on the moving platform one by one.

2. A welding device according to claim 1, characterized in that: The movable platform comprises a lower movable plate and an upper movable plate, a column is arranged between the lower movable plate and the upper movable plate, the upper and lower sides of the column are respectively fixedly connected to the upper side of the lower movable plate and the lower side of the upper movable plate, the upper side of the lower movable plate is provided with a mounting groove, the mounting groove is located on both sides of the upper movable plate, the bottom of the lower movable plate is also fixedly connected to the bottom plate through the column, the lower side of the lower movable plate is fixedly connected to the trigger plate, and the trigger plate is located on one side of the bottom plate.

3. A welding device according to claim 2, characterized in that: A plurality of placement grooves are provided on the upper side of the upper movable plate, and the plurality of placement grooves are arranged uniformly in sequence on the upper movable plate, the placement grooves are matched with the bosses, and the bosses can move up and down in the placement grooves, and spring grooves are provided on the inner walls on both sides corresponding to the placement grooves, the push rod is located in the spring groove, and one end of the push rod passes through the spring groove and extends out of the upper movable plate.

4. A welding device according to claim 3, characterized in that: The boss is provided with receiving grooves on both sides facing the spring groove, and the receiving grooves are used to receive the arc-shaped clamping plates. Electric telescopic rods are fixedly installed on both ends of the bottom plate. The output ends of the electric telescopic rods slide through the lower movable plate and are fixedly connected to the bottoms of both ends of the placement plate.

5. A welding device according to claim 4, characterized in that: Two slide rails are fixedly mounted on the machine body, and the slide rails pass through the welding chamber. Both sides of the lower movable plate are slidably mounted on the slide rails through sliders. A mounting seat is fixedly mounted on the machine body, and the mounting seat is located between the two slide rails. A plurality of infrared sensors are fixedly mounted on the machine body, and the infrared sensors are respectively distributed at the ends of the machine body and in the welding chamber, and the infrared sensors correspond to the trigger sheets. Two cover shells are fixedly mounted on the machine body, and the two cover shells are respectively located at both sides of the welding chamber, and the cover shells cover the components at both ends of the machine body, and a notch is opened on the cover shell, and the notch exposes the upper movable plate, and pressure blocks are fixedly mounted inside the cover shell, and the pressure blocks are distributed at both sides of the notch.

6. A welding device according to claim 5, characterized in that: The outer side of the arc-shaped clamping plate is fixedly connected to the end of the push rod, and a support spring is sleeved on the push rod. The two ends of the support spring respectively abut against one end of the push rod close to the arc-shaped clamping plate and the inner wall of the spring groove. The support spring is in a compressed state and can push the arc-shaped clamping plate to move toward the middle of the boss.

7. A welding device according to claim 6, characterized in that: The clamping assembly also includes a fixed plate and a connecting rod, the protruding end of the push rod is fixedly connected to the fixed plate, a fixed seat is fixedly installed on the side of the fixed plate away from the push rod, a joint is rotatably installed on the fixed seat, the upper end of the connecting rod is rotatably connected to the lower end of the joint, and the lower end of the connecting rod is rotatably installed in the installation groove.

8. A welding device according to claim 7, characterized in that: The driving assembly includes a driving motor, which is fixedly mounted on the machine body. The driving motor is connected to the infrared sensor through an electrical signal. A transmission screw is rotatably connected to the mounting seat. The end of the transmission screw is connected to the output shaft of the driving motor through a toothed belt. The lower moving plate is fitted on the transmission screw through a threaded sleeve.

9. A welding device according to claim 1, characterized in that: The welding assembly also includes a lifting cylinder and a robotic arm. The lifting cylinder is fixedly installed on the top of the welding chamber, and the output shaft of the lifting cylinder passes through the welding chamber. The robotic arm is slidably installed in the welding chamber, and the output shaft of the lifting cylinder is fixedly connected to the upper side of the robotic arm. The welding gun is movably installed on the lower side of the robotic arm.

10. A welding process for keychain processing, characterized in that: A welding device as claimed in any one of claims 1 to 9 is used.

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