A welding device for bed frame processing

Abstract

The present invention provides a welding device for processing a bed frame, which relates to the technical field of bed frame welding. The welding device includes a workbench and a welding torch for welding the bed frame. A driving block is horizontally slidably connected to the workbench, and a supporting block for supporting a cross bar is vertically slidably connected to the workbench. A first positioning block and a second positioning block are arranged on the supporting block. The first positioning block is fixedly connected to the supporting block. A transmission mechanism is arranged between the supporting block and the driving block, and the transmission mechanism drives the cross bar to move closer to the longitudinal bar. A first driving mechanism for driving the driving block to move horizontally is arranged below the workbench. A plurality of positioning mechanisms are arranged on the workbench. A supporting seat for supporting the longitudinal bar is connected to the driving block. Among them, positioning inclined plates for positioning the longitudinal bar are fixedly connected to the supporting seats at both ends of the longitudinal bar. The present invention can make the gaps between the two ends of each cross bar and the two longitudinal bars equal in size, and while controlling the appearance of the bed frame, ensure the welding quality of the bed frame.

Description

Technical Field

[0001] The present invention relates to the technical field of bed frame welding, and particularly relates to a welding device for bed frame processing. Background Art

[0002] Bed frame welding is to melt and combine metal components (such as steel pipes, square pipes or angle irons, etc.) together through heat energy (usually an electric arc) to form a strong and stable structure to support the mattress and bedding. It is a key step in bed frame processing and is applied to scenarios such as furniture manufacturing, industrial equipment or medical beds, aiming to ensure the strength, load-bearing capacity and durability of the bed frame structure.

[0003] Refer to Figure 1 , the bed frame 3 includes a plurality of cross bars 31 and two longitudinal bars 32. The cross bars 31 and the longitudinal bars 32 are both hollow square pipes. The cross bars 31 and the longitudinal bars 32 are perpendicular to each other. The cross bars 31 are distributed between the two longitudinal bars 32. The cross bars 31 are arranged in a uniform array along the front-back direction of the longitudinal bars 32, and two adjacent cross bars 31 are arranged in parallel. The two longitudinal bars 32 are arranged in parallel with each other. The two ends of the cross bar 31 are welded to the outer side surfaces of the longitudinal bars 32 by a welding torch 2 to form the basic skeleton of the bed frame.

[0004] In view of the above related technologies, when welding a bed frame, it is necessary to first position the cross bar and the longitudinal bar at the same time, control the relative positions between the cross bar and the longitudinal bar to control the size of the bed frame, and at the same time, it is necessary to control the consistency of the gap sizes between the two ends of the cross bar and the longitudinal bar. If the gap on one side is too large, it will inevitably cause the gap on the other side to be too small. During the welding process, if the gap is too large, the molten metal at the weld will easily flow, resulting in an unattractive weld formation, such as welding beads, depressions and other defects. At the same time, the excessive flow of molten metal may also cause incomplete fusion at the local weld, affecting the density and strength of the weld. If the gap is too small, it will be difficult for the welding electrode or welding wire to penetrate into the gap, increasing the difficulty of the welding operation and prone to incomplete penetration, that is, the root of the weld is not completely fused, which will seriously reduce the strength and toughness of the welded joint. Summary of the Invention

[0005] In view of this, the present invention provides a welding device for bed frame processing, aiming to solve the problem that when positioning a plurality of cross bars and longitudinal bars of a bed frame at the same time, the gap sizes between the two ends of the cross bar and the two longitudinal bars are inconsistent.

[0006] To solve the above technical problems, the present invention provides a welding device for bed frame processing, including a workbench and a welding torch for welding the bed frame. The bed frame includes a cross bar and a longitudinal bar. A driving block is horizontally slidably connected to the workbench, and a supporting block for supporting the cross bar is vertically slidably connected to the workbench. A plurality of the driving blocks and the supporting blocks are provided and are all distributed at both ends of the cross bar. A positioning block one and a positioning block two are provided on the supporting block. A transmission mechanism is provided between the supporting block and the driving block. When the driving block moves horizontally, the positioning block two can be driven to move through the transmission mechanism to cooperate with the positioning block one to clamp the cross bar in the front-back direction and drive the cross bar to move close to the longitudinal bar. A driving mechanism one for driving the driving block to move horizontally is provided below the workbench. A plurality of positioning mechanisms are provided on the workbench, and the positioning mechanisms are used to position the cross bar in the left-right direction. A supporting seat for supporting the longitudinal bar is connected to the upper surface of the driving block. Among them, positioning inclined plates for positioning the longitudinal bar are fixedly connected to the supporting seats at both ends of the longitudinal bar.

[0007] By adopting the above technical solution, the cross bar is placed between the positioning block one and the adjacent positioning block two. During the process of placing the cross bar, the positioning mechanisms push the cross bar axially from both ends of the cross bar to center the cross bar in the left-right direction, improving the accuracy of the distribution position of the cross bar relative to the longitudinal bar in the left-right direction. When placing the longitudinal bar, the positioning inclined plate abuts against the edge of the longitudinal bar. When the driving block moves, first, the cross bar is locked and fixed by the cooperation of the positioning block one and the positioning block two, and then the longitudinal bar is driven to move close to the cross bar in the left-right direction and abut against the outer side surface of the cross bar through the positioning inclined plate. While positioning the longitudinal bar in the left-right direction, the inclined surface of the positioning inclined plate drives the longitudinal bar to move in the front-back direction, thereby positioning the longitudinal bar in the front-back direction, enabling the gaps between both ends of each cross bar and the two longitudinal bars to be equal, controlling the appearance of the bed frame while ensuring the welding quality of the bed frame.

[0008] Optionally, the positioning mechanisms are axially arranged on both sides of the cross bar. The positioning mechanism includes a fixing plate fixedly connected to the upper surface of the workbench. The fixing plate is slidably connected with a positioning plate through a first sliding rod. A pressing spring is sleeved on the first sliding rod, and the pressing spring is used to push the positioning plate to move close to the cross bar.

[0009] By adopting the above technical solution, the pressing spring pushes the cross bar to move close to the first sliding rod, so that the positioning plates at both ends of the cross bar move closer to each other to position the cross bar.

[0010] Optionally, the positioning block one is fixedly connected to the support block. A guide rail one is vertically and fixedly connected to the workbench. A guide rail two is slidably connected within the guide rail one. A chute one is vertically opened in the support base. The transmission mechanism includes a connecting rod one slidably connected to the chute one. One end of the connecting rod one away from the support base is slidably sleeved with a transmission housing. The transmission housing is slidably connected to the guide rail two. A transmission spring is arranged between the support base and the transmission housing. A guide rail three is hinged to the support block through a rotating pin. The positioning block two is fixedly connected to the guide rail three. The transmission housing is fixedly connected with a sliding rod two slidably arranged in the guide rail three.

[0011] Optionally, the chute within the guide rail three is inclined relative to the side surface of the guide rail three.

[0012] Optionally, the chute opened inside the guide rail one is a dovetail groove.

[0013] By adopting the above technical solution, the chute opened inside the guide rail one is a dovetail groove, which is used to restrict the movement of the guide rail two in the horizontal direction.

[0014] Optionally, the driving block is provided with a transmission inclined surface one, and the support block is provided with a transmission inclined surface two that can abut against the transmission inclined surface one.

[0015] Optionally, a telescopic rod with a damping effect is fixedly connected between the support block and the workbench.

[0016] By adopting the above technical solution, the telescopic rod buffers the fall of the support block, reducing the probability of wear caused by the collision between the free fall movement of the support block and the workbench.

[0017] Optionally, the driving mechanism one includes a linear driver one fixedly connected to the lower bottom surface of the workbench. The driving shaft of the linear driver one is hinged with a rotating rod. One end of the rotating rod away from the linear driver one is fixedly connected with a driving gear. Both ends of the driving gear are engaged with transmission racks. Each transmission rack is fixedly connected with a transmission shaft. The driving blocks on the same side of the cross bar are all fixedly connected to one transmission shaft.

[0018] By adopting the above technical solution, the extension or contraction of the driving shaft of the linear driver one can drive the driving gear to rotate by itself through the rotating rod. The rotation of the driving gear drives the driving block to move through the transmission rack and the transmission shaft.

[0019] Optionally, a driving mechanism two is arranged on the workbench. The driving mechanism two is used to drive the welding torch to move for welding the cross bar and the longitudinal bar.

[0020] Optionally, the second driving mechanism includes a first sliding frame and a second linear driver for driving the first sliding frame to slide horizontally along the workbench. A second sliding frame is arranged on the first sliding frame, and a third linear driver for driving the second sliding frame to move horizontally is provided. The moving direction of the second sliding frame is perpendicular to that of the first sliding frame. A third sliding frame is arranged on the second sliding frame, and a fourth linear driver for driving the third sliding frame to move vertically is provided. A rotating source is fixedly connected to the third sliding frame, and the driving shaft of the rotating source is fixedly connected to the welding torch through a second connecting rod.

[0021] By adopting the above technical solution, the welding torch can move along the X, Y, and Z axes in space, and the rotating source drives the welding torch to rotate through the second connecting rod, so that the welding torch moves to the intersection of the cross bar and the longitudinal bar to weld the cross bar and the longitudinal bar.

[0022] In summary, compared with the prior art, the present invention has at least one of the following beneficial technical effects:

[0023] 1. The positioning mechanism centers the cross bar in the left-right direction, and the first positioning block and the second positioning block lock and fix the cross bar in the front-back direction, improving the accuracy of the distribution position of the cross bar relative to the longitudinal bar in the left-right direction. The positioning inclined plate fixes and positions the longitudinal bar, and can control the gap between the cross bar and the longitudinal bar, ensuring the welding quality of the bed frame while controlling the appearance of the bed frame.

[0024] 2. The driving block moves close to the supporting block under the action of the first driving mechanism. After the driving block drives the second positioning block to move through the transmission mechanism and cooperates with the first positioning block to clamp the cross bar, the driving block drives the cross bar to move upward through the first positioning block and the second positioning block to be flush with the longitudinal bar. Finally, the driving block drives the positioning inclined plate to push the longitudinal bar to abut against the cross bar, realizing the positioning of the cross bar and the longitudinal bar. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of the bed frame according to the embodiment of the present invention;

[0026] Figure 2 It is a schematic diagram of the overall structure according to the embodiment of the present invention;

[0027] Figure 3 According to the embodiment of the present invention Figure 2 The partial enlarged view of area A in;

[0028] Figure 4 It is a top view of the driving block, the supporting block and the third guide rail according to the embodiment of the present invention;

[0029] Figure 5 It is a cross-sectional view of the transmission housing and the first connecting rod according to the embodiment of the present invention;

[0030] Figure 6 It is a schematic structural diagram of the positioning mechanism according to the embodiment of the present invention;

[0031] Figure 7 This is the bottom view of the workbench bottom structure of the embodiment of the present invention.

[0032] Explanation of reference numerals: 1. Workbench; 11. Driving block; 111. First transmission inclined plane; 12. Support block; 121. First positioning block; 122. Second positioning block; 123. Second transmission inclined plane; 13. Support seat; 131. First sliding groove; 14. Positioning inclined plate; 15. First guide rail; 16. Second guide rail; 2. Welding torch; 3. Bed frame; 31. Cross bar; 32. Longitudinal bar; 4. Transmission mechanism; 41. First connecting rod; 411. First limiting part; 42. Transmission housing; 43. Transmission spring; 44. Rotating pin; 45. Third guide rail; 46. Second sliding rod; 47. Telescopic rod; 5. First driving mechanism; 51. First linear driver; 52. Rotating rod; 53. Driving gear; 54. Transmission rack; 55. Transmission shaft; 6. Positioning mechanism; 61. Fixed plate; 62. First sliding rod; 621. Second limiting part; 63. Positioning plate; 64. Extrusion spring; 7. Second driving mechanism; 71. First sliding frame; 72. Second linear driver; 73. Second sliding frame; 74. Third linear driver; 75. Third sliding frame; 76. Fourth linear driver; 77. Rotating source; 78. Second connecting rod. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the Figures 2 - 7 of the embodiments of the present invention.

[0034] This embodiment provides a welding device for processing a bed frame. Referring to Figure 2 and Figure 3 , a welding device for processing a bed frame includes a workbench 1, a welding torch 2, a first positioning block 121 and a second positioning block 122 for positioning the cross bar 31 in the front-rear direction, a positioning mechanism 6 for positioning the cross bar 31 in the axial direction (left-right direction of the cross bar 31), and a positioning inclined plate 14 for positioning the longitudinal bar 32. The positioning inclined plate 14 can position the longitudinal bar 32 in the left-right direction and the front-rear direction.

[0035] Referring to Figure 2 and Figure 3, the workbench 1 stands upright on the horizontal plane. Multiple driving blocks 11 slide horizontally on the workbench 1. Above the workbench 1, multiple supporting blocks 12 for supporting the cross bar 31 are arranged to slide vertically. The driving blocks 11 and the supporting blocks 12 are arranged in one-to-one correspondence. The driving blocks 11 and the supporting blocks 12 are both arranged at both ends of the cross bar 31 along the axial direction. The first positioning block 121 and the second positioning block 122 are arranged on both sides of the cross bar 31 in the front-rear direction. The first positioning block 121 is fixedly connected to the supporting block 12, and the second positioning block 122 is slidably connected to the supporting block 12 horizontally. A transmission mechanism 4 is arranged between the driving block 11 and the supporting block 12. When the driving block 11 moves, it can drive the second positioning block 122 to move closer to the cross bar 31 through the transmission mechanism 4, so that the second positioning block 122 cooperates with the first positioning block 121 to clamp the cross bar 31, and at the same time position the cross bar 31 in the front-rear direction. Below the workbench 1, a first driving mechanism 5 for driving the driving block 11 to move in the left-right direction is arranged. Multiple positioning mechanisms 6 are arranged on the workbench 1. The positioning mechanisms 6 are arranged on both the left and right sides of the cross bar 31 and are used to position the cross bar 31 along the axial direction.

[0036] Referring to Figure 3 , Figure 4 and Figure 5 , the driving block 11 is provided with a first transmission inclined surface 111, and the supporting block 12 is provided with a second transmission inclined surface 123 that can abut against the first transmission inclined surface 111. The upper surface of the driving block 11 is connected with a supporting seat 13 for supporting the longitudinal bar 32. Since the cross bars 31 are arranged in an array along the front-rear direction of the longitudinal bar 32 and the driving blocks 11 are distributed at both ends of the cross bar 31, the driving blocks 11 are also arranged at both the front and rear ends of the longitudinal bar 32. Also, because the supporting seat 13 is fixedly connected to the driving block 11, the positioning inclined plate 14 is fixedly connected to the supporting seats 13 at both the front and rear ends of the longitudinal bar 32, and the positioning inclined plate 14 can abut against the edge of the longitudinal bar 32.

[0037] Before welding, the operator places the cross bar 31 on the supporting block 12 and places the longitudinal bar 32 on the supporting seat 13. At this time, the cross bar 31 is lower than the longitudinal bar 32, and the positioning mechanism 6 is located below the longitudinal bar 32. Among them, the cross bar 31 is located between the first positioning block 121 and the second positioning block 122. During the process of placing the cross bar 31, the positioning mechanism 6 axially pushes the cross bar 31, thereby positioning the cross bar 31 along the axial direction. The first driving mechanism 5 drives the driving block 11 to move closer to the supporting block 12. The driving block 11 drives the second positioning block 122 to move closer to the first positioning block 121 through the transmission mechanism 4, so that the second positioning block 122 and the first positioning block 121 clamp the cross bar 31, and at the same time position the cross bar 31 in the front-rear direction.

[0038] The driving block 11 continues to move, causing the first transmission inclined surface 111 to abut against the second transmission inclined surface 123. The driving block 11 continues to move and pushes the support block 12 to move upward through the first transmission inclined surface 111 and the second transmission inclined surface 123. The first positioning block 121 and the second positioning block 122 drive the cross bar 31 to move upward and approach the longitudinal bar 32 along with the support block 12, so that the cross bar 31 and the longitudinal bar 32 are flush in the vertical direction. Since the positioning mechanism 6 needs to abut against both side ends of the cross bar 31 to position it axially, when initially placing the cross bar 31 and the longitudinal bar 32, the cross bar 31 and the longitudinal bar 32 cannot coincide in the vertical direction to avoid interference between the positioning mechanism 6 and the longitudinal bar 32. Therefore, after the axial positioning of the cross bar 31 is completed, the cross bar 31 is driven to move upward to be flush with the longitudinal bar 32.

[0039] The driving block 11 continues to move closer to the support block 12, causing the upper surface of the driving block 11 to abut against the lower bottom surface of the support block 12. At this time, the first transmission inclined surface 111 disengages from the second transmission inclined surface 123. The driving block 11 moves and drives the positioning inclined plate 14 to abut against the edge of the longitudinal bar 32 through the support seat 13. The positioning inclined plate 14 drives the longitudinal bar 32 to move closer to the cross bar 31 in the left-right direction and abut against the outer side surface of the cross bar 31. At the same time, the positioning inclined plate 14 drives the longitudinal bar 32 to move in the front-back direction, thereby positioning the longitudinal bar 32. Then the operator uses a welding torch 2 to weld the junction of the cross bar 31 and the longitudinal bar 32 to form the bed frame 3.

[0040] Thus, the first positioning block 121 and the second positioning block 122 fix the cross bar 31 in the front-back direction, improving the accuracy of the distribution position of the cross bar 31 relative to the longitudinal bar 32 in the front-back direction. The positioning mechanism 6 positions the cross bar 31 in the left-right direction, and the positioning inclined plate 14 fixes and positions the longitudinal bar 32, enabling the gaps between both ends of the cross bar 31 and the two longitudinal bars 32 to be of the same size, while controlling the appearance of the bed frame 3 and ensuring the welding quality of the bed frame 3.

[0041] Among them, the driving block 11 moves closer to the support block 12 under the action of the first driving mechanism 5. After the driving block 11 drives the second positioning block 122 to move through the transmission mechanism 4 and cooperates with the first positioning block 121 to clamp the cross bar 31, the driving block 11 drives the cross bar 31 to move upward to be flush with the longitudinal bar 32 through the first positioning block 121 and the second positioning block 122. Finally, the driving block 11 drives the positioning inclined plate 14 to push the longitudinal bar 32 to abut against the cross bar 31, realizing the positioning of the cross bar 31 and the longitudinal bar 32.

[0042] Refer to Figure 3 and Figure 6, the positioning mechanism 6 includes a fixing plate 61, a first sliding rod 62, a positioning plate 63 and a compression spring 64. The fixing plate 61 is fixedly connected to the upper surface of the workbench 1, and the fixing plate 61 is located at both the left and right ends of the first sliding rod 62. The first sliding rod 62 is fixedly connected to the side surface of the fixing plate 61 close to the cross bar 31. The positioning plate 63 is slidably sleeved on the first sliding rod 62. The compression spring 64 is sleeved on the first sliding rod 62, and the compression spring 64 is located between the fixing plate 61 and the positioning plate 63, and is used to push the positioning plate 63 to move close to the cross bar 31, so that the positioning plates 63 at both ends of the cross bar 31 move closer to each other to position the cross bar 31. The first sliding rod 62 is fixedly connected with a second limiting part 621, and the second limiting part 621 is used to prevent the positioning plate 63 from detaching from the first sliding rod 62 under the push of the compression spring 64.

[0043] Referring to Figure 3 , Figure 4 and Figure 5 , a first guide rail 15 is vertically and fixedly connected to the workbench 1. The chute opened inside the first guide rail 15 is a dovetail chute. A second guide rail 16 is slidably connected inside the first guide rail 15. The dovetail chute is used to limit the horizontal movement of the second guide rail 16. A first chute 131 is vertically opened in the support base 13. The transmission mechanism 4 includes a first connecting rod 41, a transmission housing 42, a transmission spring 43, a third guide rail 45 and a second sliding rod 46. One end of the first connecting rod 41 is slidably connected to the first chute 131. The transmission housing 42 is slidably sleeved on the end of the first connecting rod 41 away from the support base 13. The end of the first connecting rod 41 extending into the transmission housing 42 is a first limiting part 411, and the first limiting part 411 is used to prevent the first connecting rod 41 from detaching from the transmission housing 42. The transmission housing 42 is slidably connected to the second guide rail 16, and the transmission housing 42 is arranged between the second guide rail 16 and the first connecting rod 41. The transmission spring 43 is sleeved on the outer side surface of the first connecting rod 41, and the transmission spring 43 is located between the support base 13 and the transmission housing 42. The third guide rail 45 is hinged to the upper surface of the support block 12 through a rotating pin 44. The chute inside the third guide rail 45 is inclined relative to the front side surface of the third guide rail 45. A second positioning block 122 is fixedly connected to the outer side surface of the third guide rail 45. The transmission housing 42 is fixedly connected with a second sliding rod 46, and the second sliding rod 46 is slidably arranged in the third guide rail 45.

[0044] When the driving block 11 moves close to the support block 12 under the action of the first driving mechanism 5, the driving block 11 drives the first connecting rod 41 to move into the interior of the transmission housing 42 through the support base 13. At this time, the transmission spring 43 is compressed. When the driving block 11 continues to move, it pushes the transmission housing 42 to move leftward through the compressed transmission spring 43. While the transmission housing 42 drives the second sliding rod 46 to move, it makes the second sliding rod 46 pull the third guide rail 45 to rotate around the rotating pin 44. Since the chute inside the third guide rail 45 is inclined relative to the front side surface of the third guide rail 45, thus the second sliding rod 46 drives the third guide rail 45 to rotate clockwise (referring to Figure 4), the positioning block two 122 rotates synchronously with the guide rail three 45 and approaches the cross bar 31, so that the positioning block two 122 and the positioning block one 121 cooperate to clamp the cross bar 31.

[0045] When the driving block 11 pushes the supporting block 12 through the transmission inclined plane one 111 and the transmission inclined plane two 123, the connecting rod one 41 continues to move into the transmission housing 42, and the transmission spring 43 is further compressed, increasing the clamping force between the positioning block two 122 and the positioning block one 121. The supporting block 12 and the guide rail two 16 move upward along the guide rail one 15, and the connecting rod one 41 moves upward along the sliding groove one 131.

[0046] A telescopic rod 47 with a damping effect is fixedly connected between the supporting block 12 and the workbench 1 (refer to Figure 5 ). After the bed frame 3 is welded, the driving mechanism one 5 drives the driving block 11 to move away from the supporting block 12, and the positioning inclined plate 14 moves synchronously with the driving block 11 and disengages from the longitudinal rod 32. The driving block 11 continues to move away from the supporting block 12, so that the transmission inclined plane two 123 disengages from the transmission inclined plane one 111. Then the driving block 11 pulls the connecting rod one 41 away from the transmission housing 42 through the supporting seat 13. The connecting rod one 41 pulls the transmission housing 42 to move through the limiting part one 411. The transmission housing 42 drives the guide rail three 45 to rotate counterclockwise around the rotating pin 44 through the sliding rod two 46 (refer to Figure 4 ), the positioning block two 122 rotates synchronously with the guide rail three 45 and disengages from the cross bar 31, and the supporting block 12 falls back to its original position under the action of its own gravity, and the telescopic rod 47 buffers the falling of the supporting block 12.

[0047] Refer to Figure 7 , the driving mechanism one 5 includes a linear driver one 51, a rotating rod 52, a driving gear 53, a transmission rack 54 and a transmission shaft 55. The linear driver one 51 is hinged to the lower bottom surface of the workbench 1. The rotating rod 52 is hinged to the driving shaft of the linear driver one 51. The driving gear 53 is fixedly connected to the rotating rod 52 and is rotatably connected to the lower bottom surface of the workbench 1. The transmission rack 54 is slidably connected to the lower bottom surface of the workbench 1. The transmission rack 54 is arranged on both sides of the driving gear 53 and can mesh with the driving gear 53. The transmission shaft 55 is arranged on both sides of the driving gear 53 and is fixedly connected to a transmission rack 54 respectively. The driving blocks 11 located on the same side of the cross bar 31 along the axial direction are all fixedly connected to a transmission shaft 55. The extension or contraction of the driving shaft of the linear driver one 51 can drive the driving gear 53 to rotate by itself through the rotating rod 52, and the rotation of the driving gear 53 drives the driving block 11 to move through the transmission rack 54 and the transmission shaft 55.

[0048] Refer to Figure 2, a second driving mechanism 7 is arranged on the workbench 1. The second driving mechanism 7 is used to drive the welding torch 2 to move for welding the cross bar 31 and the longitudinal bar 32. The second driving mechanism 7 includes a first sliding frame 71, a second linear driver 72, a second sliding frame 73, a third linear driver 74, a third sliding frame 75, a fourth linear driver 76 and a rotating source 77. The second linear driver 72 is fixedly connected to the upper surface of the workbench 1. The first sliding frame 71 is slidably connected to the workbench 1. The first sliding frame 71 can slide along the front-back direction of the workbench 1 driven by the first linear driver 51. The second sliding frame 73 is slidably connected to the first sliding frame 71. The third linear driver 74 is fixedly connected to the first sliding frame 71 and is used to drive the second sliding frame 73 to move horizontally in the left-right direction. The third sliding frame 75 is vertically slidably connected to the second sliding frame 73. The fourth linear driver 76 is fixedly connected to the second sliding frame 73 and is used to drive the third sliding frame 75 to move in the vertical direction. The rotating source 77 is fixedly connected to the third sliding frame 75. The driving shaft of the rotating source 77 is fixedly connected to the welding torch 2 through a second connecting rod 78. Thus, the welding torch 2 can move along the X, Y and Z axes in space, and the rotating source 77 drives the welding torch 2 to rotate through the second connecting rod 78, so that the welding torch 2 moves to the joint of the cross bar 31 and the longitudinal bar 32 to weld the cross bar 31 and the longitudinal bar 32.

[0049] The implementation principle of a welding device for bed frame processing in an embodiment of the present invention is as follows: Before welding, the operator places the cross bar 31 on the support block 12 and the longitudinal bar 32 on the support seat 13. The positioning mechanism 6 axially pushes the cross bar 31 to axially position the cross bar 31. The first driving mechanism 5 drives the driving block 11 to move close to the support block 12. The driving block 11 drives the second positioning block 122 to move close to the first positioning block 121 through the transmission mechanism 4, so that the second positioning block 122 and the first positioning block 121 clamp the cross bar 31, and at the same time, the cross bar 31 is positioned in the front-back direction.

[0050] The driving block 11 continues to move and pushes the support block 12 to move upward through the first transmission inclined plane 111 and the second transmission inclined plane 123. The first positioning block 121 and the second positioning block 122 drive the cross bar 31 to move upward close to the longitudinal bar 32 with the support block 12, so that the cross bar 31 and the longitudinal bar 32 are flush in the vertical direction. The driving block 11 continues to move close to the support block 12. The driving block 11 moves and drives the positioning inclined plate 14 to abut against the edge of the longitudinal bar 32 through the support seat 13. The positioning inclined plate 14 drives the longitudinal bar 32 to move close to the cross bar 31 in the left-right direction and abut against the outer side surface of the cross bar 31. At the same time, the positioning inclined plate 14 drives the longitudinal bar 32 to move in the front-back direction, thereby positioning the longitudinal bar 32. Then the operator uses the welding torch 2 to weld the joint of the cross bar 31 and the longitudinal bar 32 to form the bed frame 3.

[0051] In addition, it should be noted that in the description of the present invention, the terms "installation", "connection" and "connection" should be understood in a broad sense.

[0052] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A welding device for bed frame processing, comprising a workbench and a welding torch for welding the bed frame. The bed frame includes a cross bar and a longitudinal bar, and is characterized in that: A driving block is horizontally slidably connected to the workbench, and a supporting block for supporting the cross bar is vertically slidably connected to the workbench. There are multiple driving blocks and supporting blocks, and they are all distributed at both ends of the cross bar. A positioning block one and a positioning block two are arranged on the supporting block. A transmission mechanism is arranged between the supporting block and the driving block. The horizontal movement of the driving block can drive the positioning block two to move and cooperate with the positioning block one to clamp the cross bar in the front-back direction, and drive the cross bar to move closer to the longitudinal bar. A driving mechanism one for driving the driving block to move horizontally is arranged below the workbench; Multiple positioning mechanisms are arranged on the workbench. The positioning mechanisms are arranged along the axis on both sides of the cross bar, and the positioning mechanisms are used to position the cross bar along the axis; A supporting seat for supporting the longitudinal bar is connected to the upper surface of the driving block. Among them, positioning inclined plates for positioning the longitudinal bar are fixedly connected to the supporting seats at both ends of the longitudinal bar; The positioning block one is fixedly connected to the supporting block. A guide rail one is vertically and fixedly connected to the workbench. A guide rail two is slidably connected in the guide rail one. A chute one is vertically opened in the supporting seat. The transmission mechanism includes a connecting rod one slidably connected in the chute one. One end of the connecting rod one away from the supporting seat is slidably sleeved with a transmission housing. The transmission housing is slidably connected to the guide rail two. A transmission spring is arranged between the supporting seat and the transmission housing. A guide rail three is hinged to the supporting block through a rotating pin. The positioning block two is fixedly connected to the guide rail three. The transmission housing is fixedly connected with a sliding rod two slidably arranged in the guide rail three; A transmission inclined surface one is opened on the driving block, and a transmission inclined surface two capable of abutting against the transmission inclined surface one is opened on the supporting block; The driving mechanism one includes a linear driver one connected to the lower bottom surface of the workbench. The driving shaft of the linear driver one is hinged with a rotating rod. A driving gear is fixedly connected to the end of the rotating rod away from the linear driver one. Transmission racks are engaged at both ends of the driving gear. Each transmission rack is fixedly connected with a transmission shaft. The driving blocks on the same side of the cross bar are all fixedly connected with one transmission shaft.

2. The welding device for bedstead processing according to claim 1, wherein: The positioning mechanism includes a fixing plate fixedly connected to the upper surface of the workbench. The fixing plate is slidably connected with a positioning plate through a sliding rod one. An extrusion spring is sleeved on the sliding rod one, and the extrusion spring is used to push the positioning plate to move closer to the cross bar.

3. A welding device for bed frame processing according to claim 1, characterized in that: The chute in the guide rail three is inclined relative to the side surface of the guide rail three.

4. A welding device for processing a bed frame according to claim 1, wherein: The chute opened inside the guide rail one is a dovetail chute.

5. A welding device for bed frame processing according to claim 1, characterized in that: A telescopic rod with a damping effect is fixedly connected between the supporting block and the workbench.

6. The welding device for bedstead processing according to claim 1, characterized in that: A driving mechanism two is arranged on the workbench, and the driving mechanism two is used to drive the welding torch to move for welding the cross bar and the longitudinal bar.

7. A welding device for bed frame processing according to claim 6, characterized in that: The second driving mechanism includes a first sliding frame and a second linear driver for driving the first sliding frame to slide horizontally along the workbench. A second sliding frame is arranged on the first sliding frame, and a third linear driver for driving the second sliding frame to move horizontally is provided. The moving direction of the second sliding frame is perpendicular to that of the first sliding frame. A third sliding frame is arranged on the second sliding frame, and a fourth linear driver for driving the third sliding frame to move vertically is provided. A rotating source is fixedly connected to the third sliding frame, and the driving shaft of the rotating source is fixedly connected to the welding torch through a second connecting rod.

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