A computer monitor arm processing device

Abstract

A computer monitor arm processing device includes a main support platform, a plate to be welded, and an auxiliary welding plate. The plate to be welded and the auxiliary welding plate are placed on the upper part of the main support platform, and the bottom of the main support platform has bottom support legs. The plate to be welded is in the center position, and the auxiliary welding plates are distributed on both sides of the plate to be welded. A plasma welding mechanism performs welding operations on the plate to be welded and the auxiliary welding plates through a plasma welding head. A clamping and positioning mechanism is provided on the top of the main support platform. The clamping and positioning mechanism includes a main welding plate positioning mechanism and an auxiliary plate positioning mechanism. The main welding plate positioning mechanism corresponds to the position of the plate to be welded and positions the plate to be welded. The auxiliary plate positioning mechanism corresponds to the position of the auxiliary welding plate and positions the auxiliary welding plate. The main support platform has an exhaust gas collection device inside, which collects the exhaust gas during the welding process.

Description

Technical Field

[0001] This invention relates to the field of plasma welding, and more particularly to a computer monitor arm processing device. Background Technology

[0002] When processing computer monitor arm support, steel plates need to be welded. An existing patent (publication number: CN115194305B) proposes a plasma arc welding machine, including a worktable. A support plate is fixedly connected to the rear side of the upper surface of the worktable. A first adjustment device is installed on the upper surface of the support plate, and a plasma arc welding device is installed in the middle of the upper surface of the support plate. A first clamping device is set in the middle of the first adjustment device. A synchronization device is installed on the upper surface of the worktable, and auxiliary devices are installed on the upper surface of the worktable and on both sides of the support plate. A base plate is set at the bottom of the auxiliary devices and below the worktable. However, in this device, the "adjusting rod is no longer subjected to external force when the second clamping device moves to other parts of the moving slot, and the reset spring resets" statement means that both the adjusting rod and the reset spring are exposed. During the welding process of the computer monitor arm support, molten metal easily adheres to the spring and adjusting rod, affecting the extension and retraction of the adjusting rod and the elasticity of the spring, thus affecting the device's anti-fouling ability. Summary of the Invention

[0003] To address the aforementioned shortcomings of existing technologies, this invention provides a computer monitor arm processing device in which, during plasma welding, a sealing sliding strip slides inside a sealing strip mounting groove, preventing welding fumes from entering the mounting groove of the positioning mechanism and contaminating parts placed inside the mounting groove when the main welding plate positioning block moves. This increases the device's resistance to contamination and improves welding performance.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A computer monitor arm processing device includes a main support platform, a plate to be welded, and an auxiliary welding plate. The plate to be welded and the auxiliary welding plate are placed on the upper part of the main support platform. The bottom of the main support platform has bottom support legs. The plate to be welded is in the center position, and the auxiliary welding plates are distributed on both sides of the plate to be welded. A clamping and positioning mechanism is provided on the top of the main support platform. The clamping and positioning mechanism includes a main welding plate positioning mechanism and an auxiliary plate positioning mechanism. The main welding plate positioning mechanism corresponds to the position of the plate to be welded and positions the plate to be welded. The auxiliary plate positioning mechanism corresponds to the position of the auxiliary welding plate and positions the auxiliary welding plate. The main support platform has a waste gas collection device inside to collect waste gas during the welding process, preventing metal vapor from adhering to the surface of the main support platform after cooling, which would cause unevenness and affect subsequent welding operations. A gap positioning mechanism is provided at the bottom of the main support platform to assist in controlling the gap size between the plate to be welded and the auxiliary welding plate. A plasma welding mechanism is provided on the top of the main support platform, which performs welding operations on the plate to be welded and the auxiliary welding plate through a plasma welding head.

[0006] The main welding plate positioning mechanism includes a sealing sliding band, a main welding plate positioning block, positioning screws, a clamping block, and a lifting drive screw. The main support platform has a positioning mechanism mounting groove inside, with multiple sets of mounting grooves evenly arranged on the surface of the main support platform. The side of the positioning mechanism mounting groove has a sealing band mounting groove. The sealing sliding band adapts to the sealing band mounting groove and connects to it, sliding within the groove. The top of the sealing sliding band has a positioning slider connecting groove, and the top of the positioning mechanism mounting groove has a positioning slider support platform. A main welding plate positioning block is positioned on the upper part of the positioning slider support platform, and a main welding support block is positioned at the bottom. The main welding support block adapts to the positioning slider connecting groove and connects to it. The main welding support block is inserted into the positioning slider connecting groove. The main welding support block adapts to the positioning slider support platform and connects to it. The main welded plate has a main bearing block that slides on the outside of the positioning slider bearing platform. The main welded plate has a positioning screw mounting groove on its surface. The positioning screw is threaded into the positioning screw mounting groove and is pressed against the surface of the positioning slider bearing platform. The main welded plate has an upper clamping block bearing platform on its top and a side clamping block positioning groove on its side. A clamping block is located at the bottom of the upper clamping block bearing platform. The clamping block has a side clamping block positioning post on its top, which is adapted to the side clamping block positioning groove. The side clamping block positioning post connects to the side clamping block positioning groove and slides inside the side clamping block positioning groove. The clamping block has a lifting screw mounting groove in its middle, and the upper clamping block bearing platform has a lifting screw connecting groove in its middle. The lifting screw connecting groove is threaded into the lifting drive screw. The lifting drive screw has a lifting screw mounting post at its bottom, which is rotatably connected to the lifting screw mounting groove. The clamping block corresponding to the position of the plate to be welded is pressed against the surface of the plate to be welded.

[0007] The auxiliary plate positioning mechanism includes an auxiliary clamping plate bearing block, an auxiliary pressing plate bearing rod, and an auxiliary pressing plate. The main bearing platform has an inner welded bearing platform in the middle, and an auxiliary block positioning groove on the side of the inner welded bearing platform. An auxiliary clamping plate bearing block is provided on the side of the auxiliary block positioning groove. An auxiliary block positioning slider is provided on the side of the auxiliary clamping plate bearing block facing the auxiliary block positioning groove. The auxiliary block positioning slider is adapted to the auxiliary block positioning groove and is connected to the auxiliary block positioning groove. The auxiliary block positioning slider slides inside the auxiliary block positioning groove. An auxiliary rod connecting groove is provided in the middle of the auxiliary clamping plate bearing block. An auxiliary pressing plate bearing rod is provided at the top of the auxiliary clamping plate bearing block. The bottom of the auxiliary pressing plate bearing rod is rotatably connected to the auxiliary rod connecting groove. An auxiliary pressing plate connecting groove is provided at the top of the auxiliary pressing plate bearing rod. An auxiliary pressing plate is provided at the top of the auxiliary pressing plate bearing rod. An auxiliary pressing plate connecting head is provided on one side of the auxiliary pressing plate. The auxiliary pressing plate connecting head is rotatably connected to the auxiliary pressing plate connecting groove. The auxiliary pressing plate is pressed against the surface of the auxiliary welded plate.

[0008] The exhaust gas collection device includes a cooling pipe, a waste collection cloth, and a side exhaust pipe. The inner welded support platform has an inner negative pressure groove, and the side of the inner negative pressure groove has a side exhaust hole located below the auxiliary block positioning groove. The side of the side exhaust hole has a side exhaust pipe mounting groove, and the side of the side exhaust hole has a side exhaust pipe mounting groove. The side exhaust pipe is inserted into the side exhaust pipe mounting groove and fixed. The other end of the side exhaust pipe is connected to the exhaust mechanism. The inner negative pressure groove has a gap plate mounting platform in the middle. The cooling pipe is placed inside the inner negative pressure groove. Two sets of cooling pipes are evenly distributed on both sides of the gap plate mounting platform. The coolant flows inside the cooling pipe, and the waste collection cloth is wrapped around the outside of the cooling pipe.

[0009] Beneficial effects: 1. During the welding process of this invention, the suction mechanism connected to the side suction pipe is activated, and negative pressure is generated inside the inner negative pressure groove. This causes the gas generated at the bottom of the plate to be welded during the welding process to flow to the side suction pipe. As the gas flows to the side suction pipe, when the gas passes through the waste collection cloth, the surface temperature of the cooling pipe and the waste collection cloth is low due to the coolant flowing inside the cooling pipe. This causes the high-temperature metal vapor inside the gas to sublimate on the surface of the waste collection cloth, preventing the high-temperature metal gas from adhering to the lower part of the joint of the plate to be welded and affecting the flatness of the weld. At the same time, the waste collection cloth is designed to be wrapped around the cooling pipe, which makes installation and disassembly simple and convenient for subsequent maintenance.

[0010] 2. In this invention, the sealing sliding strip slides inside the sealing strip mounting groove, so that when the main welding plate positioning block moves, the internal space of the positioning mechanism mounting groove is moderate and relatively closed, thereby preventing welding fumes from entering the positioning mechanism mounting groove and contaminating the parts placed inside the positioning mechanism mounting groove, thereby increasing the device's anti-fouling ability and reducing the device's maintenance frequency.

[0011] 3. The multiple main welding plate positioning blocks of the present invention can be moved separately, so that when the device is facing the positioning operation of the welding plate with irregular shape, the positioning point of the welding plate can be freely adjusted, thereby increasing the positioning capability of the device for welding plates of various types.

[0012] 4. In this invention, auxiliary welding plates are placed on both sides of the plate to be welded. One auxiliary welding plate is an arc-starting plate, and the other auxiliary welding plate is an arc-ending plate. This ensures that the starting and ending points of the welding both fall on the auxiliary welding plates, making the arc more stable when the plasma welding head welds the plate to be welded. This reduces weld beads, arc craters, etc. generated during the welding process, resulting in a better welding effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a computer monitor support arm processing device according to the present invention.

[0014] Figure 2 This is a front cross-sectional view of a computer monitor support arm processing device according to the present invention.

[0015] Figure 3 As described in this invention Figure 2 Enlarged view A.

[0016] Figure 4 As described in this invention Figure 2 Structural diagram B.

[0017] Figure 5 This is a diagram showing the installation state of the auxiliary tablet compressor according to the present invention.

[0018] Figure 6 This is an installation diagram of the No. 2 gap plate support platform according to the present invention.

[0019] Figure 7 This is a partial exploded view of a computer monitor support arm processing device according to the present invention.

[0020] Figure 8 This is a schematic diagram of the plasma welding mechanism described in this invention.

[0021] Figure 9 This is a schematic diagram of the main support platform structure described in this invention.

[0022] Figure 10 This is a bottom view of the main support platform described in this invention.

[0023] Figure 11 This is a schematic diagram of the main welding plate positioning block structure described in this invention.

[0024] In the diagram: 1. Main support platform; 2. Clamping and positioning mechanism; 3. Exhaust gas collection device; 4. Gap positioning mechanism; 5. Plasma welding mechanism; 6. Welding connecting rod support slide; 7. Bottom support leg; 8. Plate to be welded; 9. Auxiliary welding plate; 11. Positioning mechanism mounting groove; 12. Sealing strip mounting groove; 13. Sealing sliding strip; 14. Positioning slider connecting groove; 15. Positioning slider support platform; 16. First welding connecting rod; 17. Second welding connecting rod; 18. Plasma welding head; 19. Inner welding support platform; 20. Inner negative pressure groove; 21. Gap plate mounting platform. ; Auxiliary block positioning groove 23; Auxiliary clamp bearing block 24; Auxiliary block positioning slider 25; Cooling pipe 26; Waste collection cloth 27; Side air extraction hole 28; Side air extraction pipe mounting groove 29; Side air extraction pipe 30; Bottom hydraulic cylinder mounting platform 31; Bottom hydraulic cylinder mounting groove 32; Lifting hydraulic cylinder 33; No. 1 gap plate bearing platform 34; No. 2 gap plate bearing platform 35; No. 3 gap plate bearing platform 36; Main welding plate positioning block 38; Main welding bearing block 39; Positioning screw mounting groove 40; Positioning screw 41; Upper clamping 42. Block support platform; 43. Side clamping block positioning groove; 44. Side clamping block positioning post; 45. Clamping block; 46. Lifting screw mounting groove; 47. Lifting screw connecting groove; 48. Lifting drive screw; 49. Lifting screw mounting post; 50. Auxiliary pressing plate support rod; 51. Auxiliary pressing plate connecting groove; 52. Auxiliary pressing plate connector; 53. Welded connecting rod support block; 54. Drive gear mounting platform; 55. Displacement motor mounting platform; 56. Displacement drive motor; 57. Displacement drive gear; 58. No. 1 connecting rod connector; 59. No. 1 Angle adjustment motor mounting platform 60; No. 1 angle adjustment motor 61; No. 2 connecting rod connector 62; No. 2 adjustment motor mounting platform 63; No. 2 adjustment motor 64; welding head connecting block 65; welding head connecting platform 66; driven rack 67; auxiliary rod connecting groove 68; main welding plate positioning mechanism 201; auxiliary plate positioning mechanism 202; No. 1 gap plate storage groove 221; No. 2 gap plate storage groove 222; No. 3 gap plate storage groove 223; No. 1 gap plate 371; No. 2 gap plate 372; No. 3 gap plate 373. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0026] Example 1:

[0027] A computer monitor arm processing device includes a main support platform 1, a plate to be welded 8, and an auxiliary welding plate 9. The plate to be welded 8 and the auxiliary welding plate 9 are placed on the upper part of the main support platform 1. The main support platform 1 has bottom support legs 7. The plate to be welded 8 is in the center position, and the auxiliary welding plates 9 are distributed on both sides of the plate to be welded 8. A plasma welding mechanism 5 performs welding operations on the plate to be welded 8 and the auxiliary welding plates 9 through a plasma welding head 18. A clamping and positioning mechanism 2 is provided on the top of the main support platform 1. The clamping and positioning mechanism 2 includes a main welding plate positioning mechanism 201 and an auxiliary plate positioning mechanism 202. The main welding plate positioning mechanism 201 is positioned corresponding to the plate to be welded 8. The main welding plate positioning mechanism 201 positions the welding plate 8. The auxiliary plate positioning mechanism 202 corresponds to the auxiliary welding plate 9 and positions the auxiliary welding plate 9. The main support platform 1 has an exhaust gas collection device 3 inside. The exhaust gas collection device 3 collects the exhaust gas during the welding process to prevent metal vapor from adhering to the surface of the main support platform 1 after cooling, causing unevenness of the main support platform 1 and affecting subsequent welding operations. A gap positioning mechanism 4 is set at the bottom of the main support platform 1. The gap positioning mechanism 4 assists in controlling the size of the gap between the welding plate 8 and the auxiliary welding plate 9. A plasma welding mechanism 5 is set at the top of the main support platform 1.

[0028] Example 2:

[0029] The main welding plate positioning mechanism 201 of this invention includes a sealing sliding band 13, a main welding plate positioning block 38, a positioning screw 41, a clamping block 45, and a lifting drive screw 48. The main support platform 1 has a positioning mechanism mounting groove 11 inside, and multiple sets of positioning mechanism mounting grooves 11 are evenly arranged on the surface of the main support platform 1. The side of the positioning mechanism mounting groove 11 has a sealing band mounting groove 12. The sealing sliding band 13 is adapted to the sealing band mounting groove 12 and connects to the sealing band mounting groove 12. The sealing sliding band 13 slides inside the sealing band mounting groove 12. The top has a positioning slider connecting groove 14, and the top of the positioning mechanism mounting groove 11 has a positioning slider support platform 15. A main welding plate positioning block 38 is provided on the upper part of the positioning slider support platform 15, and a main welding support block 39 is provided at the bottom of the main welding plate positioning block 38. The main welding support block 39 is adapted to the positioning slider connecting groove 14 and is connected to the positioning slider connecting groove 14. The main welding support block 39 is inserted into the positioning slider connecting groove 14 and is adapted to the positioning slider support platform 15. The main welded support block 39 slides outside the positioning slider support platform 15. The surface of the main welded support block 39 has a positioning screw mounting groove 40. The positioning screw 41 is threaded into the positioning screw mounting groove 40 and is pressed against the surface of the positioning slider support platform 15. The top of the main welded plate positioning block 38 has an upper clamping block support platform 42. The side of the main welded plate positioning block 38 has a side clamping block positioning groove 43. The bottom of the upper clamping block support platform 42 is provided with a clamping block 45. The top of the clamping block 45 has a side clamping block positioning post 44. The side clamping block positioning post 44 is positioned with the side clamping block. The side clamping block positioning post 44 is connected to the side clamping block positioning groove 43 and slides inside the side clamping block positioning groove 43. The clamping block 45 has a lifting screw mounting groove 46 in the middle and a lifting screw connecting groove 47 in the middle of the upper clamping block bearing platform 42. The lifting screw connecting groove 47 is threadedly connected to the lifting drive screw 48. The bottom of the lifting drive screw 48 has a lifting screw mounting post 49. The lifting screw mounting post 49 is rotatably connected to the lifting screw mounting groove 46. The clamping block 45 corresponding to the position of the plate to be welded 8 is pressed against the surface of the plate to be welded 8.

[0030] Example 3:

[0031] The auxiliary plate positioning mechanism 202 of the present invention includes an auxiliary clamping plate bearing block 24, an auxiliary pressing plate bearing rod 50, and an auxiliary pressing plate 52. The main bearing platform 1 has an inner welded bearing platform 19 in its middle. The inner welded bearing platform 19 has an auxiliary block positioning groove 23 on its side. An auxiliary clamping plate bearing block 24 is disposed on the side of the auxiliary block positioning groove 23. An auxiliary block positioning slider 25 is located on the side of the auxiliary clamping plate bearing block 24 facing the auxiliary block positioning groove 23. The auxiliary block positioning slider 25 is adapted to the auxiliary block positioning groove 23 and is connected to the auxiliary block positioning groove 23. 25 slides inside the auxiliary block positioning groove 23. The auxiliary clamping plate bearing block 24 has an auxiliary rod connecting groove 68 in the middle. An auxiliary pressing plate bearing rod 50 is provided on the top of the auxiliary clamping plate bearing block 24. The bottom of the auxiliary pressing plate bearing rod 50 is rotatably connected to the auxiliary rod connecting groove 68. The top of the auxiliary pressing plate bearing rod 50 has an auxiliary pressing plate connecting groove 51. An auxiliary pressing plate 52 is provided on the top of the auxiliary pressing plate bearing rod 50. An auxiliary pressing plate connecting head 53 is provided on one side of the auxiliary pressing plate 52. The auxiliary pressing plate connecting head 53 is rotatably connected to the auxiliary pressing plate connecting groove 51. The auxiliary pressing plate 52 is pressed against the surface of the auxiliary welding plate 9.

[0032] Example 4:

[0033] The waste gas collection device 3 of the present invention includes a cooling pipe 26, a waste collection cloth 27, and a side exhaust pipe 30. The inner welded support platform 19 has an inner negative pressure groove 20 inside, and a side exhaust hole 28 on the side of the inner negative pressure groove 20. The side exhaust hole 28 is located at the lower part of the auxiliary block positioning slide groove 23. The side of the side exhaust hole 28 has a side exhaust pipe mounting groove 29. The side exhaust pipe 30 is inserted into the side exhaust pipe mounting groove 29 and fixed. The other end of the side exhaust pipe 30 is connected to the exhaust mechanism. The inner negative pressure groove 20 has a gap plate mounting platform 21 in the middle. The cooling pipe 26 is placed inside the inner negative pressure groove 20. Two sets of cooling pipes 26 are evenly distributed on both sides of the gap plate mounting platform 21. The coolant flows inside the cooling pipe 26. The waste collection cloth 27 is wrapped around the outside of the cooling pipe 26.

[0034] Furthermore, during the welding process, the extraction mechanism connected to the side extraction pipe 30 is activated, and a negative pressure is generated inside the inner negative pressure groove 20. This causes the gas generated at the bottom of the plate to be welded 8 during the welding process to flow towards the side extraction pipe 30. As the gas flows towards the side extraction pipe 30, when the gas passes through the waste collection cloth 27, the surface temperature of the cooling pipe 26 and the waste collection cloth 27 is lower due to the coolant flowing inside the cooling pipe 26. This causes the high-temperature metal vapor inside the gas to sublimate on the surface of the waste collection cloth 27, preventing the high-temperature metal gas from adhering to the lower part of the joint of the plate to be welded 8 and affecting the flatness of the weld. At the same time, the waste collection cloth 27 is designed to be wrapped around the cooling pipe 26, making it easy to install and disassemble, and convenient for subsequent maintenance.

[0035] Example 5:

[0036] The gap positioning mechanism 4 of this invention includes a lifting hydraulic cylinder 33, a first gap plate support platform 34, a second gap plate support platform 35, and a third gap plate support platform 36. The gap plate mounting platform 21 has a first gap plate storage groove 221, a second gap plate storage groove 222, and a third gap plate storage groove 223 inside. The second gap plate storage groove 222 is located to the side of the first gap plate storage groove 221, and its width is greater than that of the first gap plate storage groove 221. The third gap plate storage groove 223 is located to the side of the second gap plate storage groove 222. The width of the gap plate storage groove 223 is greater than the width of the second gap plate storage groove 222. The bottom of the inner welded support platform 19 is provided with a first gap plate support platform 34, a second gap plate support platform 35, and a third gap plate support platform 36. The first gap plate support platform 34 has a first gap plate 371 on its top. The first gap plate 371 is adapted to the first gap plate storage groove 221 and is connected to the first gap plate storage groove 221. The first gap plate 371 slides inside the first gap plate storage groove 221. The second gap plate support platform 35 has a second gap plate 371 on its top. 72. The second gap plate 372 is adapted to the second gap plate storage groove 222. The second gap plate 372 is connected to the second gap plate storage groove 222 and slides inside the second gap plate storage groove 222. The top of the third gap plate support platform 36 has a third gap plate 373, which is adapted to the third gap plate storage groove 223. The third gap plate 373 is connected to the third gap plate storage groove 223 and slides inside the third gap plate storage groove 223. The bottom of the inner welded support platform 19 has a bottom hydraulic cylinder mounting platform. 31. The bottom of the bottom hydraulic cylinder mounting platform 31 has three sets of bottom hydraulic cylinder mounting slots 32. The three sets of lifting hydraulic cylinders 33 are respectively inserted into the three sets of bottom hydraulic cylinder mounting slots 32 and fixed. The hydraulic rod of the lifting hydraulic cylinder 33 corresponding to the position of the first gap plate support platform 34 is fixedly connected to the first gap plate support platform 34. The hydraulic rod of the lifting hydraulic cylinder 33 corresponding to the position of the second gap plate support platform 35 is fixedly connected to the second gap plate support platform 35. The hydraulic rod of the lifting hydraulic cylinder 33 corresponding to the position of the third gap plate support platform 36 is fixedly connected to the third gap plate support platform 36.

[0037] Furthermore, when placing the plate to be welded 8 and the auxiliary welding plate 9, the corresponding lifting hydraulic cylinder 33 is activated according to the model of the plate to be welded 8 and the auxiliary welding plate 9, so that the corresponding No. 1 gap plate 371, No. 2 gap plate 372, or No. 3 gap plate 373 is lifted. At this time, the plate to be welded 8 and the auxiliary welding plate 9 are placed. The spacing between the plates to be welded 8 and the spacing between the auxiliary welding plates 9 are controlled according to the No. 1 gap plate 371, No. 2 gap plate 372, or No. 3 gap plate 373. After the plate to be welded 8 is placed, the main welding plate positioning block 38 is driven to approach the plate to be welded 8. After the main welding plate positioning block 38 approaches, the lifting drive screw 48 is rotated to lower the clamping block 45 until the clamping block 45 is pressed against the surface of the plate to be welded 8, thus completing the positioning of the plate to be welded 8. After the auxiliary welding plate 9 is placed on both sides of the plate to be welded 8, the auxiliary clamping plate bearing block 24 is moved to the corresponding position so that the auxiliary pressing plate 52 is pressed against the upper part of the auxiliary welding plate 9, thus completing the positioning of the auxiliary welding plate 9.

[0038] It should be noted that when the sealing sliding strip 13 slides inside the sealing strip mounting groove 12, the internal space of the positioning mechanism mounting groove 11 is moderate and relatively closed, thereby preventing the welding fumes from entering the positioning mechanism mounting groove 11 and contaminating the parts placed inside the positioning mechanism mounting groove 11, thereby increasing the anti-fouling ability of this device and reducing the maintenance frequency of this device.

[0039] It should also be noted that the multiple main welding plate positioning blocks 38 can be moved separately, so that when the device is facing the positioning operation of the irregularly shaped welding plate 8, the positioning point of the welding plate 8 can be freely adjusted, thereby increasing the positioning capability of the device for various types of welding plates 8.

[0040] It should also be noted that auxiliary welding plates 9 are placed on both sides of the plate to be welded 8. One auxiliary welding plate 9 is an arc-starting plate, and the other auxiliary welding plate 9 is an arc-ending plate. This ensures that the starting and ending points of the welding both fall on the auxiliary welding plates 9, making the arc more stable when the plasma welding head 18 welds the plate to be welded 8, reducing weld beads, arc craters, etc. generated during the welding process, and resulting in a better welding effect.

[0041] The smooth sliding of the sealing sliding band 13 within the positioning mechanism mounting groove 11 allows multiple main welding plate positioning blocks 38 to independently fine-tune their positions and conform to the irregular contours of the plate. After the positioning screw 41 is fixed, it works with the clamping block 45 to apply uniform pressure to areas of different thicknesses through the pressure adaptive of the lifting drive screw 48, significantly improving positioning accuracy. This is especially suitable for curved and stepped display arm plates, reducing positioning time and solving the problem of positioning deviation for complex curved plates by traditional positioning devices.

[0042] The cooling liquid circulating in the cooling pipe 26 lowers the surface temperature of the waste collection cloth 27, not only condensing metal vapor but also conducting it to the bottom of the plate to be welded 8 through the main support platform 1, forming a "hot on top, cold on bottom" temperature gradient, which suppresses the warping deformation of the plate caused by the high temperature of welding. The negative pressure drainage of the side exhaust pipe 30 and the inner negative pressure groove 20 allows the hot air generated by welding to flow orderly along the surface of the waste collection cloth 27, carrying away excess heat in the welding area and avoiding uneven weld width caused by local overheating. The sealing sliding band 13 closes the positioning mechanism mounting groove 11, preventing hot fumes from entering the interior of the main support platform and avoiding the impact of thermal expansion and contraction on the accuracy of the positioning components in traditional devices. The present invention reduces the welding deformation by 60%, and the surface roughness Ra value of the weld is reduced from 3.2μm to 1.6μm, significantly improving the structural strength of the computer monitor arm.

[0043] Example 6:

[0044] The plasma welding mechanism 5 of this invention includes a first welding link 16, a second welding link 17, a plasma welding head 18, a welding link support block 54, a displacement drive motor 57, a displacement drive gear 58, and a second adjustment motor 64. The main support platform 1 has a welding link support slide 6 at its top, and a driven rack 67 at its bottom. The welding link support block 54 is adapted to the welding link support slide 6 and is connected to it. The welding link support block 54 slides outside the welding link support slide 6, and its bottom has... A drive gear mounting platform 55 has a displacement motor mounting platform 56 on its side. A displacement drive motor 57 is inserted into and fixed inside the displacement motor mounting platform 56. The drive shaft of the displacement drive motor 57 passes through the drive gear mounting platform 55 and is fixedly connected to a displacement drive gear 58. The displacement drive gear 58 meshes with a driven rack 67. The top of the welded connecting rod support block 54 has a positioning slider support platform 15. The top of the positioning slider support platform 15 has a first connecting rod connector 59. A first welded connecting rod 16 is provided on the side of the first connecting rod connector 59. Two welding connecting rods are provided on the side of the first welded connecting rod 16. Welding link 17 has a second connecting head 62 at its top. One side of welding link 16 is rotatably connected to the second connecting head 62, and the other side is rotatably connected to the first connecting head 59. Welding link 16 has a first-angle adjustment motor mounting platform 60 at both ends. Two sets of first-angle adjustment motors 61 are inserted into and fixed inside the first-angle adjustment motor mounting platform 60. The first-angle adjustment motor 61 corresponding to the position of the first connecting head 59 has a drive shaft fixedly connected to the first connecting head 59. The first-angle adjustment motor 61 corresponding to the position of the second connecting head 62 has a drive shaft fixedly connected to the first connecting head 59. The motor 61 has a drive shaft that is fixedly connected to the second connecting rod connector 62. The bottom of the second welding connecting rod 17 has a welding head connecting block 65. The side of the welding head connecting block 65 is provided with a plasma welding head 18. The side of the plasma welding head 18 facing the welding head connecting block 65 has a welding head connecting platform 66. The welding head connecting platform 66 is rotatably connected to the welding head connecting block 65. The side of the welding head connecting platform 66 has a second adjusting motor mounting platform 63. The second adjusting motor 64 is inserted into the second adjusting motor mounting platform 63 and fixed. The drive shaft of the second adjusting motor 64 is fixedly connected to the welding head connecting block 65.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A computer monitor arm processing device, characterized in that: The system includes a main support platform (1), a plate to be welded (8), and an auxiliary welding plate (9). The plate to be welded (8) and the auxiliary welding plate (9) are placed on the upper part of the main support platform (1). The bottom of the main support platform (1) has bottom support legs (7). The plate to be welded (8) is in the center position, and the auxiliary welding plates (9) are distributed on both sides of the plate to be welded (8). The plasma welding mechanism (5) performs welding operations on the plate to be welded (8) and the auxiliary welding plate (9) through the plasma welding head (18). A clamping and positioning machine is provided on the top of the main support platform (1). Structure (2), the clamping and positioning mechanism (2) includes a main welding plate positioning mechanism (201) and an auxiliary plate positioning mechanism (202). The main welding plate positioning mechanism (201) corresponds to the position of the plate to be welded (8) and positions the plate to be welded (8). The auxiliary plate positioning mechanism (202) corresponds to the position of the auxiliary welding plate (9) and positions the auxiliary welding plate (9). The main support platform (1) has a waste gas collection device (3) inside. (1) A gap positioning mechanism (4) is provided at the bottom, and a plasma welding mechanism (5) is provided at the top of the main support platform (1); the exhaust gas collection device (3) includes a cooling pipe (26), a waste collection cloth (27), and a side exhaust pipe (30). The main support platform (1) has an inner welding support platform (19) in the middle. The inner welding support platform (19) has an inner negative pressure groove (20) inside. The inner negative pressure groove (20) has a side exhaust hole (28) on the side. The side exhaust hole (28) is located below the auxiliary block positioning slide groove (23). The side of the hole (28) has a side suction pipe mounting groove (29). The side suction pipe (30) is inserted into the side suction pipe mounting groove (29) and fixed. The other end of the side suction pipe (30) is connected to the suction mechanism. The middle of the inner negative pressure groove (20) has a gap plate mounting platform (21). The cooling pipe (26) is placed inside the inner negative pressure groove (20). The two sets of cooling pipes (26) are evenly distributed on both sides of the gap plate mounting platform (21). The coolant flows inside the cooling pipe (26). The waste collection cloth (27) is wrapped around the outside of the cooling pipe (26).The gap positioning mechanism (4) includes a lifting hydraulic cylinder (33), a first gap plate support platform (34), a second gap plate support platform (35), and a third gap plate support platform (36). The gap plate mounting platform (21) has a first gap plate storage groove (221), a second gap plate storage groove (222), and a third gap plate storage groove (223) inside. The second gap plate storage groove (222) is located on the side of the first gap plate storage groove (221), and the width of the second gap plate storage groove (222) is greater than the width of the first gap plate storage groove (221). The third gap plate storage groove (223) is located on the side of the second gap plate storage groove (222), and the width of the third gap plate storage groove (223) is greater than the width of the second gap plate storage groove (222). The bottom of the inner welded support platform (19) is provided with a first gap plate storage groove (221). The spacer includes a first gap plate support platform (34), a second gap plate support platform (35), and a third gap plate support platform (36). The first gap plate support platform (34) has a first gap plate (371) on its top, which is adapted to a first gap plate storage groove (221). The first gap plate (371) is connected to the first gap plate storage groove (221) and slides inside the first gap plate storage groove (221). The second gap plate support platform (35) has a second gap plate (372) on its top, which is adapted to a second gap plate storage groove (222) and is connected to the second gap plate storage groove (222). The second gap plate (372) slides inside the second gap plate storage groove (222).

2. The computer monitor support arm processing device according to claim 1, characterized in that: The main welding plate positioning mechanism (201) includes a sealing sliding strip (13), a main welding plate positioning block (38), a positioning screw (41), a clamping block (45), and a lifting drive screw (48). The main support platform (1) has a positioning mechanism mounting groove (11) inside. Multiple sets of positioning mechanism mounting grooves (11) are evenly arranged on the surface of the main support platform (1). The side of the positioning mechanism mounting groove (11) has a sealing strip mounting groove (12). The sealing sliding strip (13) is adapted to the sealing strip mounting groove (12). The sealing sliding strip (13) is connected to the sealing strip mounting groove (12). The sealing sliding strip (13) slides inside the sealing strip mounting groove (12). The top of the sealing sliding strip (13) has a positioning slider connecting groove (14).

3. The computer monitor support arm processing device according to claim 2, characterized in that: The top of the positioning mechanism mounting groove (11) has a positioning slider support platform (15), the upper part of the positioning slider support platform (15) is provided with a main welding plate positioning block (38), the bottom of the main welding plate positioning block (38) has a main welding support block (39), the main welding support block (39) is adapted to the positioning slider connecting groove (14), the main welding support block (39) is connected to the positioning slider connecting groove (14), the main welding support block (39) is inserted into the positioning slider connecting groove (14), the main welding support block (39) is adapted to the positioning slider support platform (15), the main welding support block (39) is connected to the positioning slider support platform (15), the main welding support block (39) slides on the outside of the positioning slider support platform (15), the surface of the main welding support block (39) has a positioning screw mounting groove (40), the positioning screw (41) is threadedly connected to the positioning screw mounting groove (40), and the positioning screw (41) is pressed on the surface of the positioning slider support platform (15).

4. The computer monitor support arm processing device according to claim 3, characterized in that: The main welding plate positioning block (38) has an upper clamping block support platform (42) on its top and a side clamping block positioning groove (43) on its side. A clamping block (45) is provided at the bottom of the upper clamping block support platform (42). The clamping block (45) has a side clamping block positioning post (44) on its top. The side clamping block positioning post (44) is adapted to the side clamping block positioning groove (43). The side clamping block positioning post (44) is connected to the side clamping block positioning groove (43). The side clamping block positioning post (44) is in the side clamping block positioning groove. (43) The internal sliding, the middle of the clamping block (45) has a lifting screw mounting groove (46), the middle of the upper clamping block bearing platform (42) has a lifting screw connecting groove (47), the lifting screw connecting groove (47) is threadedly connected to the lifting drive screw (48), the bottom of the lifting drive screw (48) has a lifting screw mounting column (49), the lifting screw mounting column (49) is rotatably connected to the lifting screw mounting groove (46), and the clamping block (45) corresponding to the position of the plate to be welded (8) is pressed on the surface of the plate to be welded (8).

5. A computer monitor support arm processing device according to claim 1, characterized in that: The auxiliary plate positioning mechanism (202) includes an auxiliary clamping plate support block (24), an auxiliary pressing plate support rod (50), and an auxiliary pressing plate (52). The inner welded support platform (19) has an auxiliary block positioning groove (23) on its side. An auxiliary clamping plate support block (24) is provided on the side of the auxiliary block positioning groove (23). An auxiliary clamping plate support block (24) is provided on the side of the auxiliary clamping plate support block (24) facing the auxiliary block positioning groove (23). The auxiliary block positioning slider (25) is adapted to the auxiliary block positioning groove (23). The auxiliary block positioning slider (25) is connected to the auxiliary block positioning groove (23). The auxiliary block positioning slider (25) is located in the auxiliary block positioning groove (202). 3) Internal sliding, the auxiliary clamping plate bearing block (24) has an auxiliary rod connecting groove (68) in the middle, the auxiliary clamping plate bearing block (24) is provided with an auxiliary pressing plate bearing rod (50) at the top, the bottom of the auxiliary pressing plate bearing rod (50) is rotatably connected with the auxiliary rod connecting groove (68), the top of the auxiliary pressing plate bearing rod (50) has an auxiliary pressing plate connecting groove (51), the top of the auxiliary pressing plate bearing rod (50) is provided with an auxiliary pressing plate (52), the auxiliary pressing plate (52) has an auxiliary pressing plate connector (53) on one side, the auxiliary pressing plate connector (53) is rotatably connected with the auxiliary pressing plate connecting groove (51), and the auxiliary pressing plate (52) is pressed on the surface of the auxiliary welding plate (9).

6. A computer monitor arm processing device according to claim 1, characterized in that: The top of the No. 3 gap plate support platform (36) has a No. 3 gap plate (373), which is adapted to the No. 3 gap plate storage groove (223). The No. 3 gap plate (373) is connected to the No. 3 gap plate storage groove (223). The No. 3 gap plate (373) slides inside the No. 3 gap plate storage groove (223). The bottom of the inner welded support platform (19) has a bottom hydraulic cylinder mounting platform (31). The bottom of the bottom hydraulic cylinder mounting platform (31) has three sets of bottom hydraulic cylinder mounting grooves (32) and three sets of lifting hydraulic cylinders ( 33) Insert them into the mounting slots (32) of the three sets of bottom hydraulic cylinders respectively and fix them. The hydraulic rod of the lifting hydraulic cylinder (33) corresponding to the position of the first gap plate support platform (34) is fixedly connected to the first gap plate support platform (34). The hydraulic rod of the lifting hydraulic cylinder (33) corresponding to the position of the second gap plate support platform (35) is fixedly connected to the second gap plate support platform (35). The hydraulic rod of the lifting hydraulic cylinder (33) corresponding to the position of the third gap plate support platform (36) is fixedly connected to the third gap plate support platform (36).

7. A computer monitor support arm processing device according to claim 1, characterized in that: The plasma welding mechanism (5) includes a first welding link (16), a second welding link (17), a plasma welding head (18), a welding link support block (54), a displacement drive motor (57), a displacement drive gear (58), and a second adjustment motor (64). The main support platform (1) has a welding link support slide (6) at the top and a driven rack (67) at the bottom. The welding link support block (54) is adapted to the welding link support slide (6) and is connected to the welding link support slide (6). The welding link support block (54) slides outside the welding link support slide (6). The bottom of the carrier block (54) has a drive gear mounting platform (55), and the side of the drive gear mounting platform (55) has a displacement motor mounting platform (56). The displacement drive motor (57) is inserted into the displacement motor mounting platform (56) and fixed. The drive shaft of the displacement drive motor (57) passes through the drive gear mounting platform (55) and is fixedly connected to the displacement drive gear (58). The displacement drive gear (58) meshes with the driven rack (67). The top of the welded connecting rod carrier block (54) has a positioning slider carrier platform (15). The top of the positioning slider carrier platform (15) has a first connecting rod connector (59). The side of the first connecting rod connector (59) is provided with a first welded connecting rod (16).

8. A computer monitor support arm processing device according to claim 7, characterized in that: A second welding link (17) is provided on the side of the first welding link (16). The top of the second welding link (17) has a second link connector (62). One side of the first welding link (16) is rotatably connected to the second link connector (62), and the other side of the first welding link (16) is rotatably connected to the first link connector (59). The first welding link (16) has a first angle adjustment motor mounting platform (60) at both ends. Two sets of first angle adjustment motors (61) are respectively inserted into the first angle adjustment motor mounting platform (60) and fixed. The first angle adjustment motor (61) corresponding to the position of the first link connector (59) has a drive shaft fixedly connected to the first link connector (59), and the position of the second link connector (62) is fixedly connected to the first link connector (59). The first angle adjustment motor (61) has a drive shaft that is fixedly connected to the second connecting rod connector (62). The bottom of the second welding connecting rod (17) has a welding head connector (65). The side of the welding head connector (65) is provided with a plasma welding head (18). The side of the plasma welding head (18) facing the welding head connector (65) has a welding head connector platform (66). The welding head connector platform (66) is rotatably connected to the welding head connector (65). The side of the welding head connector platform (66) has a second adjustment motor mounting platform (63). The second adjustment motor (64) is inserted into the second adjustment motor mounting platform (63) and fixed. The drive shaft of the second adjustment motor (64) is fixedly connected to the welding head connector (65).

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