Welding device for machining bedstead

Abstract

The invention provides a welding device for machining a bedstead, and relates to the technical field of bedstead welding, the welding device comprises a workbench and a welding gun for welding the bedstead; a driving block is horizontally and slidably connected to the workbench, a supporting block used for supporting the transverse rod is vertically and 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 with the supporting block, a transmission mechanism is arranged between the supporting block and the driving block, and the transmission mechanism drives the transverse rod to move close to the longitudinal rod. A first driving mechanism used for driving the driving block to move horizontally is arranged below the workbench. A plurality of positioning mechanisms are arranged on the workbench; the driving block is connected with supporting seats used for supporting the longitudinal rod, and the supporting seats located at the two ends of the longitudinal rod are fixedly connected with positioning inclined plates used for positioning the longitudinal rod. The size of gaps between the two ends of each transverse rod and the size of gaps between the two longitudinal rods can be equal, and the welding quality of the bedstead is ensured while the appearance of the bedstead is controlled.

Description

Technical Field

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

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

[0003] Reference 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 tubes. 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 evenly arrayed along the front and rear directions 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 welding gun 2 is used to weld the two ends of the cross bars 31 to the outer side surfaces of the longitudinal bars 32 to form the basic skeleton of the bed frame.

[0004] Regarding the above-mentioned related technologies, when welding the bed frame, it is necessary to first position the horizontal bar and the longitudinal bar at the same time, control the relative position between the horizontal bar and the longitudinal bar to control the size of the bed frame, and at the same time control the consistency of the gap size between the two ends of the horizontal bar and the longitudinal bar. If the gap on one side is too large, it will inevitably lead to a gap on the other side that is too small. During the welding process, a gap that is too large will make the molten metal at the weld easy to flow, resulting in an unsightly weld formation and defects such as weld nodules and depressions. At the same time, excessive flow of molten metal may also cause partial unfusion of the weld, affecting the density and strength of the weld. If the gap is too small, it will make it difficult for the welding rod or wire to penetrate into the gap, which will increase the difficulty of the welding operation and easily lead to incomplete penetration, that is, the root of the weld is not completely fused, which will seriously reduce the strength and toughness of the weld 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 of inconsistent gap sizes between two ends of a cross bar and two longitudinal bars when multiple cross bars and longitudinal bars of the bed frame are positioned simultaneously.

[0006] In order to solve the above technical problems, the present invention provides a welding device for bed frame processing, comprising a workbench and a welding gun for welding the bed frame, the bed frame comprising a cross bar and a longitudinal bar; a driving block is horizontally slidably connected to the workbench, and a support block for supporting the cross bar is vertically slidably connected to the workbench, and the driving block and the support block are provided with multiple and are evenly distributed at both ends of the cross bar, a positioning block 1 and a positioning block 2 are provided on the support block, and a transmission mechanism is provided between the support block and the driving block, the driving block can move horizontally through the transmission mechanism to drive the positioning block 2 to move and cooperate with the positioning block 1 to clamp the cross bar in the front and rear directions, and drive the cross bar to move close to the longitudinal bar, and a driving mechanism 1 for driving the driving block to move horizontally is provided under the workbench; a plurality of positioning mechanisms are provided on the workbench, and the positioning mechanism is used to position the cross bar in the left and right directions; the upper surface of the driving block is connected to a support seat for supporting the longitudinal bar, wherein the support seats located at both ends of the longitudinal bar are fixedly connected with a positioning inclined plate for positioning the longitudinal bar.

[0007] By adopting the above technical solution, the crossbar is placed between the positioning block 1 and the adjacent positioning block 2. During the placement of the crossbar, the positioning mechanism pushes the crossbar axially from both ends of the crossbar to center the crossbar in the left-right direction, thereby improving the accuracy of the crossbar 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, the crossbar is first locked and fixed by the cooperation of the positioning block 1 and the positioning block 2, and then the longitudinal bar is driven by the positioning inclined plate to approach the crossbar in the left-right direction and abut against the outer side of the crossbar. While the longitudinal bar is positioned in the left-right direction, the inclined surface of the positioning inclined plate drives the longitudinal bar to move in the front-to-back direction, thereby positioning the longitudinal bar in the front-to-back direction, so that the gaps at both ends of each crossbar and between the two longitudinal bars are equal in size, thereby controlling the appearance of the bed frame while ensuring the welding quality of the bed frame.

[0008] Optionally, the positioning mechanism is axially arranged on both sides of the cross bar, and the positioning mechanism includes a fixed plate fixedly connected to the upper surface of the workbench, the fixed plate is slidably connected to the positioning plate through a sliding rod, and the sliding rod is provided with an extrusion spring, and the extrusion spring is used to push the positioning plate to move close to the cross bar.

[0009] By adopting the above technical solution, the extrusion spring pushes the cross bar to move closer to the slide bar, 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 1 is fixedly connected to the supporting block, a guide rail 1 is vertically fixedly connected to the workbench, a guide rail 2 is slidably connected to the guide rail 1, a slide groove 1 is vertically opened on the support seat, the transmission mechanism includes a connecting rod 1 slidably connected to the slide groove 1, a transmission housing is slidably sleeved on the end of the connecting rod 1 away from the supporting seat, the transmission housing is slidably connected to the guide rail 2, a transmission spring is arranged between the support seat and the transmission housing, a guide rail 3 is hinged on the support block through a rotating pin, the positioning block 2 is fixedly connected to the guide rail 3, and the transmission housing is fixedly connected to a slide rod 2 slidably arranged on the guide rail 3.

[0011] Optionally, the slide groove in the guide rail three is arranged to be inclined relative to the side of the guide rail three.

[0012] Optionally, the slide groove provided inside the guide rail is a dovetail groove.

[0013] By adopting the above technical solution, the sliding groove opened inside the guide rail 1 is a dovetail groove, which is used to limit the horizontal movement of the guide rail 2.

[0014] Optionally, the driving block is provided with a first transmission bevel, and the supporting block is provided with a second transmission bevel capable of abutting against the first transmission bevel.

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

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

[0017] Optionally, the driving mechanism includes a linear driver fixedly connected to the bottom surface of the workbench, the driving shaft of the linear driver is hinged with a rotating rod, the end of the rotating rod away from the linear driver is fixedly connected to a driving gear, the two ends of the driving gear are meshed with transmission racks, each of the transmission racks is fixedly connected to a transmission shaft, and the driving blocks located on the same side of the cross bar are fixedly connected to a transmission shaft.

[0018] By adopting the above technical solution, the extension or contraction of the driving shaft of the linear actuator 1 can drive the driving gear to rotate through the rotating rod, and the driving gear rotates to drive the driving block to move through the transmission rack and the transmission shaft.

[0019] Optionally, a second driving mechanism is provided on the workbench, and the second driving mechanism is used to drive the welding gun to move to weld the horizontal rod and the longitudinal rod.

[0020] Optionally, the driving mechanism 2 includes a sliding frame 1 and a linear driver 2 for driving the sliding frame 1 to slide horizontally along the workbench; the sliding frame 1 is provided with a sliding frame 2 and a linear driver 3 for driving the sliding frame 2 to move horizontally; the moving direction of the sliding frame 2 is perpendicular to the sliding frame 1; the sliding frame 2 is provided with a sliding frame 3 and a linear driver 4 for driving the sliding frame 3 to move in the vertical direction; the sliding frame 3 is fixedly connected to a rotation source, and the driving shaft of the rotation source is fixedly connected to the welding gun through a connecting rod 2.

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

[0022] In summary, compared with the prior art, the present invention includes at least one of the following beneficial technical effects: 1. The positioning mechanism centers the crossbar in the left and right directions, and the positioning blocks 1 and 2 lock and fix the crossbar in the front and rear directions, improving the accuracy of the distribution of the crossbar relative to the longitudinal bar in the left and right directions. The positioning inclined plate fixes and positions the longitudinal bar, and can control the gap between the crossbar and the longitudinal bar, thereby controlling the appearance of the bed frame and ensuring the welding quality of the bed frame.

[0023] 2. The driving block moves close to the supporting block under the action of driving mechanism 1. After the driving block drives positioning block 2 to move through the transmission mechanism to cooperate with positioning block 1 to clamp the cross bar, the driving block drives the cross bar to move upward and flush with the longitudinal bar through positioning block 1 and positioning block 2. Finally, the driving block drives the positioning inclined plate to push the longitudinal bar to abut against the cross bar, thereby realizing the positioning of the cross bar and the longitudinal bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of a bed frame according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 3 For the embodiment of the present invention Figure 2 A partial enlarged view of the middle area A; Figure 4 A top view of a driving block, a supporting block and a guide rail 3 according to an embodiment of the present invention; Figure 5 It is a cross-sectional view of a transmission housing and a connecting rod 1 according to an embodiment of the present invention; Figure 6 It is a structural schematic diagram of a positioning mechanism according to an embodiment of the present invention; Figure 7 It is a bottom view of the bottom structure of the workbench according to an embodiment of the present invention.

[0025] Description of the accompanying drawings: 1. workbench; 11. driving block; 111. transmission slope 1; 12. support block; 121. positioning block 1; 122. positioning block 2; 123. transmission slope 2; 13. support seat; 131. slideway 1; 14. positioning inclined plate; 15. guide rail 1; 16. guide rail 2; 2. welding gun; 3. bed frame; 31. cross bar; 32. longitudinal bar; 4. transmission mechanism; 41. connecting rod 1; 411. limit part 1; 42. transmission housing; 43. transmission spring; 44. rotating pin; 45. guide rail 3; 46. Slide rod 2; 47, telescopic rod; 5, driving mechanism 1; 51, linear drive 1; 52, rotating rod; 53, driving gear; 54, transmission rack; 55, transmission shaft; 6, positioning mechanism; 61, fixing plate; 62, slide rod 1; 621, limit part 2; 63, positioning plate; 64, extrusion spring; 7, driving mechanism 2; 71, sliding frame 1; 72, linear drive 2; 73, sliding frame 2; 74, linear drive 3; 75, sliding frame 3; 76, linear drive 4; 77, rotation source; 78, connecting rod 2. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figure 2-Figure 7 , the technical solution of the embodiment of the present invention is clearly and completely described.

[0027] This embodiment provides a welding device for bed frame processing, referring to Figure 2 and Figure 3 A welding device for bed frame processing includes a workbench 1, a welding gun 2, a positioning block 121 and a positioning block 2 122 for positioning a cross bar 31 along the front-to-back direction, a positioning mechanism 6 for positioning the cross bar 31 along the axial direction (the left-right direction of the cross bar 31), and a positioning inclined plate 14 for positioning a longitudinal bar 32. The positioning inclined plate 14 can position the longitudinal bar 32 along the left-right direction and the front-to-back direction.

[0028] Reference Figure 2 and Figure 3The workbench 1 is erected on a horizontal plane. There are multiple driving blocks 11 sliding horizontally on the workbench 1. There are multiple supporting blocks 12 for supporting the crossbar 31 sliding vertically above the workbench 1. The driving blocks 11 and the supporting blocks 12 are arranged one by one. The driving blocks 11 and the supporting blocks 12 are arranged axially at both ends of the crossbar 31. Positioning block 1 121 and positioning block 2 122 are arranged on both sides of the crossbar 31 along the front-back direction. Positioning block 1 121 is fixedly connected to the supporting block 12. Positioning block 2 122 is horizontally slidably connected to the supporting block 12. A transmission mechanism 4 is arranged between the driving block 11 and the supporting block 12. The movement of the driving block 11 can drive the positioning block 2 122 to move close to the crossbar 31 through the transmission mechanism 4, so that the positioning block 2 122 cooperates with the positioning block 1 121 to clamp the crossbar 31, and at the same time, the crossbar 31 is positioned along the front-back direction. A driving mechanism 1 5 for driving the driving block 11 to move along the left-right direction is arranged below the workbench 1. A plurality of positioning mechanisms 6 are provided on the workbench 1 . The positioning mechanisms 6 are provided on the left and right sides of the crossbar 31 , and are used to position the crossbar 31 along the axial direction.

[0029] Reference Figure 3 , Figure 4 and Figure 5 The driving block 11 is provided with a driving inclined surface 111, and the supporting block 12 is provided with a driving inclined surface 2 123 that can abut against the driving inclined surface 111. The upper surface of the driving block 11 is connected with a supporting seat 13 for supporting the longitudinal rod 32. Since the cross bar 31 is arranged in an array along the front and rear directions of the longitudinal rod 32, and the driving blocks 11 are distributed at both ends of the cross bar 31, the front and rear ends of the longitudinal rod 32 are also provided with driving blocks 11. Because the supporting seat 13 is fixedly connected to the driving block 11, the positioning inclined plate 14 is fixedly connected to the supporting seat 13 located at the front and rear ends of the longitudinal rod 32, and the positioning inclined plate 14 can abut against the edge of the longitudinal rod 32.

[0030] Before welding, the operator places the crossbar 31 on the support block 12 and the longitudinal bar 32 on the support seat 13. At this time, the crossbar 31 is lower than the longitudinal bar 32, and the positioning mechanism 6 is located below the longitudinal bar 32. The crossbar 31 is located between the positioning block 1 121 and the positioning block 2 122. During the placement of the crossbar 31, the positioning mechanism 6 pushes the crossbar 31 axially, thereby positioning the crossbar 31 axially. The driving mechanism 1 5 drives the driving block 11 to move close to the support block 12, and the driving block 11 drives the positioning block 2 122 to move close to the positioning block 1 121 through the transmission mechanism 4, so that the positioning block 2 122 and the positioning block 1 121 clamp the crossbar 31, and at the same time, the crossbar 31 is positioned in the front-rear direction.

[0031] The driving block 11 continues to move so that the transmission bevel 111 abuts against the transmission bevel 2 123. The driving block 11 continues to move through the transmission bevel 111 and the transmission bevel 2 123 to push the support block 12 upward. The positioning block 121 and the 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. Since the positioning mechanism 6 needs to abut against the two side ends of the cross bar 31 to position it axially, when the cross bar 31 and the longitudinal bar 32 are initially placed, the cross bar 31 and the longitudinal bar 32 cannot overlap 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 and flush with the longitudinal bar 32.

[0032] The driving block 11 continues to move closer to the support block 12, so that the upper surface of the driving block 11 abuts against the lower bottom surface of the support block 12. At this time, the transmission inclined surface 111 is separated from the transmission inclined surface 2 123, and the driving block 11 moves through the support seat 13 to drive the positioning inclined plate 14 to abut against the edge of the longitudinal rod 32. The positioning inclined plate 14 drives the longitudinal rod 32 to move closer to the cross bar 31 in the left and right direction and abuts against the outer side of the cross bar 31. At the same time, the positioning inclined plate 14 drives the longitudinal rod 32 to move in the front and back direction, thereby positioning the longitudinal rod 32. Then the operator uses the welding gun 2 to weld the intersection of the cross bar 31 and the longitudinal rod 32 to form the bed frame 3.

[0033] Thus, the first positioning block 121 and the second positioning block 122 fix the crossbar 31 in the front-to-back direction, thereby improving the accuracy of the front-to-back distribution position of the crossbar 31 relative to the longitudinal bars 32. The positioning mechanism 6 positions the crossbar 31 in the left-right direction, and the positioning inclined plate 14 fixes and positions the longitudinal bars 32, thereby making the gaps at both ends of the crossbar 31 and between the two longitudinal bars 32 consistent in size, thereby controlling the appearance of the bed frame 3 and ensuring the welding quality of the bed frame 3.

[0034] Among them, the driving block 11 moves close to the supporting block 12 under the action of the driving mechanism 1 5. After the driving block 11 drives the positioning block 2 122 to move through the transmission mechanism 4 to cooperate with the positioning block 1 121 to clamp the cross bar 31, the driving block 11 drives the cross bar 31 to move upward and flush with the longitudinal bar 32 through the positioning blocks 1 121 and 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, thereby realizing the positioning of the cross bar 31 and the longitudinal bar 32.

[0035] Reference Figure 3 and Figure 6The positioning mechanism 6 includes a fixed plate 61, a slide bar 62, a positioning plate 63 and a compression spring 64. The fixed plate 61 is fixedly connected to the upper surface of the workbench 1, and the fixed plate 61 is located at the left and right ends of the slide bar 62. The slide bar 62 is fixedly connected to the side of the fixed plate 61 close to the cross bar 31, and the positioning plate 63 is slidably sleeved on the slide bar 62. The compression spring 64 is sleeved on the slide bar 62, and the compression spring 64 is located between the fixed 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 close to each other to position the cross bar 31. The slide bar 62 is fixedly connected to the limiting part 2 621, and the limiting part 2 621 is used to prevent the positioning plate 63 from detaching from the slide bar 1 62 under the push of the compression spring 64.

[0036] Reference Figure 3 , Figure 4 and Figure 5 , a guide rail 15 is vertically fixedly connected to the workbench 1, and the slide groove provided inside the guide rail 15 is a dovetail groove, and a guide rail 2 16 is slidably connected inside the guide rail 15, and the dovetail groove is used to limit the horizontal movement of the guide rail 2 16. A slide groove 131 is vertically provided on the support seat 13. The transmission mechanism 4 includes a connecting rod 141, a transmission housing 42, a transmission spring 43, a guide rail 3 45 and a slide rod 2 46. One end of the connecting rod 141 is slidably connected to the slide groove 131, and the transmission housing 42 is slidably sleeved on the end of the connecting rod 141 away from the support seat 13. The end of the connecting rod 141 extending into the transmission housing 42 is a limiter 1411, and the limiter 1411 is used to prevent the connecting rod 141 from being separated from the transmission housing 42. The transmission housing 42 is slidably connected to the guide rail 2 16, and the transmission housing 42 is arranged between the guide rail 2 16 and the connecting rod 141. The transmission spring 43 is sleeved on the outer side of the connecting rod 1 41, and the transmission spring 43 is located between the support seat 13 and the transmission housing 42. The guide rail 3 45 is hinged to the upper surface of the support block 12 through the rotating pin 44, and the slide groove in the guide rail 3 45 is inclined relative to the front side of the guide rail 3 45. The positioning block 2 122 is fixedly connected to the outer side of the guide rail 3 45, and the transmission housing 42 is fixedly connected to the slide bar 2 46, and the slide bar 2 46 is slidably set on the guide rail 3 45.

[0037] When the driving block 11 moves close to the supporting block 12 under the action of the driving mechanism 15, the driving block 11 drives the connecting rod 141 to move toward the inside of the transmission housing 42 through the supporting seat 13, and the transmission spring 43 is compressed at this time. The driving block 11 continues to move and pushes the transmission housing 42 to move to the left through the compressed transmission spring 43. While the transmission housing 42 drives the sliding rod 246 to move, the sliding rod 246 pulls the guide rail 345 to rotate around the rotating pin 44. Since the sliding groove in the guide rail 345 is inclined relative to the front side of the guide rail 345, the sliding rod 246 drives the guide rail 345 to rotate clockwise (refer to Figure 4), the positioning block 2 122 rotates synchronously with the guide rail 3 45 and approaches the cross bar 31, so that the positioning block 2 122 and the positioning block 1 121 cooperate to clamp the cross bar 31.

[0038] When the driving block 11 pushes the supporting block 12 to move through the transmission slope 111 and the transmission slope 2 123, the connecting rod 1 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 2 122 and the positioning block 1 121. The supporting block 12 and the guide rail 2 16 move upward along the guide rail 1 15, and the connecting rod 1 41 moves upward along the slide groove 131.

[0039] A telescopic rod 47 with a damping effect is fixedly connected between the support block 12 and the workbench 1 (see Figure 5 ). After the bed frame 3 is welded, the driving mechanism 15 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 to disengage from the longitudinal rod 32. The driving block 11 continues to move away from the supporting block 12, so that the transmission inclined plane 2 123 disengages from the transmission inclined plane 1 111. Then the driving block 11 pulls the connecting rod 1 41 away from the transmission housing 42 through the supporting seat 13, and the connecting rod 1 41 pulls the transmission housing 42 to move through the limiting part 1 411, and the transmission housing 42 drives the guide rail 3 45 to rotate counterclockwise around the rotating pin 44 through the sliding rod 2 46 (refer to Figure 4 ), the positioning block 2 122 rotates synchronously with the guide rail 3 45 to disengage from the cross bar 31, and the support block 12 falls and resets due to its own gravity, and the telescopic rod 47 buffers the fall of the support block 12.

[0040] Reference Figure 7 The driving mechanism 15 includes a linear driver 151, a rotating rod 52, a driving gear 53, a transmission rack 54 and a transmission shaft 55. The linear driver 151 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 151, the driving gear 53 is fixedly connected to the rotating rod 52, and the driving gear 53 is rotationally 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, and 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 respectively fixedly connected to a transmission rack 54, and 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 151 can drive the driving gear 53 to rotate 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.

[0041] Reference Figure 2, a driving mechanism 27 is provided on the workbench 1, and the driving mechanism 27 is used to drive the welding gun 2 to move and weld the horizontal bar 31 and the longitudinal bar 32. The driving mechanism 27 includes a sliding frame 1 71, a linear driver 2 72, a sliding frame 2 73, a linear driver 3 74, a sliding frame 3 75, a linear driver 4 76 and a rotation source 77. The linear driver 2 72 is fixedly connected to the upper surface of the workbench 1, and the sliding frame 1 71 is slidably connected to the workbench 1. The sliding frame 1 71 can slide along the front and rear direction of the workbench 1 under the drive of the linear driver 1 51. The sliding frame 2 73 is slidably connected to the sliding frame 1 71, and the linear driver 3 74 is fixedly connected to the sliding frame 1 71, and is used to drive the sliding frame 2 73 to move horizontally in the left and right directions. The sliding frame 3 75 is vertically slidably connected to the sliding frame 2 73, and the linear driver 4 76 is fixedly connected to the sliding frame 2 73, and is used to drive the sliding frame 3 75 to move in the vertical direction. The rotation source 77 is fixedly connected to the sliding frame 3 75, and the driving shaft of the rotation source 77 is fixedly connected to the welding gun 2 through the connecting rod 2 78. Thus, the welding gun 2 can move in the X, Y and Z axes in space, and the rotation source 77 drives the welding gun 2 to rotate through the connecting rod 2 78, so that the welding gun 2 moves to the intersection of the horizontal bar 31 and the vertical bar 32 to weld the horizontal bar 31 and the vertical bar 32.

[0042] The implementation principle of a welding device for bed frame processing according to an embodiment of the present invention is as follows: before welding, the operator places the crossbar 31 on the support block 12 and the longitudinal bar 32 on the support seat 13. The positioning mechanism 6 pushes the crossbar 31 axially, thereby positioning the crossbar 31 axially. The driving mechanism 1 5 drives the driving block 11 to move close to the support block 12, and the driving block 11 drives the positioning block 2 122 to move close to the positioning block 1 121 through the transmission mechanism 4, so that the positioning block 2 122 and the positioning block 1 121 clamp the crossbar 31, and simultaneously position the crossbar 31 in the front-rear direction.

[0043] The driving block 11 continues to move through the transmission bevel 111 and the transmission bevel 2 123 to push the support block 12 upward, and the positioning block 121 and the positioning block 2 122 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, and the driving block 11 moves through the support seat 13 to drive the positioning bevel plate 14 to abut against the edge of the longitudinal bar 32. The positioning bevel plate 14 drives the longitudinal bar 32 to move close to the cross bar 31 in the left and right direction and abut against the outer side surface of the cross bar 31. At the same time, the positioning bevel plate 14 drives the longitudinal bar 32 to move in the front and back direction, thereby positioning the longitudinal bar 32, and then the operator uses the welding gun 2 to weld the intersection of the cross bar 31 and the longitudinal bar 32 to form the bed frame 3.

[0044] In addition, it should be noted that in the description of the present invention, the terms "install", "connect" and "connect" should be understood in a broad sense.

[0045] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A welding device for bed frame processing, comprising a workbench (1) and a welding gun (2) for welding a bed frame (3), wherein the bed frame (3) comprises a cross bar (31) and a longitudinal bar (32), characterized in that: The workbench (1) is horizontally slidably connected to a driving block (11), and a supporting block (12) for supporting a crossbar (31) is vertically slidably connected to the workbench (1). A plurality of driving blocks (11) and supporting blocks (12) are provided and are evenly distributed at both ends of the crossbar (31). A positioning block 1 (121) and a positioning block 2 (122) are provided on the supporting block (12). A transmission mechanism (4) is provided between the supporting block (12) and the driving block (11). The driving block (11) is horizontally moved through the transmission mechanism (4) to drive the positioning block 2 (122) to move in cooperation with the positioning block 1 (121) to clamp the crossbar (31) in the front-rear direction, and to drive the crossbar (31) to move close to the longitudinal bar (32). A driving mechanism 1 (5) for driving the driving block (11) to move horizontally is provided below the workbench (1); a plurality of positioning mechanisms (6) are provided on the workbench (1), and the positioning mechanisms (6) are used to position the crossbar (31) in the axial direction. The upper surface of the driving block (11) is connected to a support seat (13) for supporting the longitudinal rod (32), wherein the support seats (13) located at both ends of the longitudinal rod (32) are fixedly connected to a positioning inclined plate (14) for positioning the longitudinal rod (32).

2. A welding device for bed frame processing according to claim 1, characterized in that: The positioning mechanism (6) is axially arranged on both sides of the cross bar (31), and the positioning mechanism (6) comprises a fixing plate (61) fixedly connected to the upper surface of the workbench (1), the fixing plate (61) being slidably connected to a positioning plate (63) via a sliding rod (62), and a pressing spring (64) is sleeved on the sliding rod (62), and the pressing spring (64) is used to push the positioning plate (63) to move closer to the cross bar (31).

3. A welding device for bed frame processing according to claim 1, characterized in that: The positioning block 1 (121) is fixedly connected to the support block (12); a guide rail 1 (15) is vertically fixedly connected to the workbench (1); a guide rail 2 (16) is slidably connected to the guide rail 1 (15); a slide groove 1 (131) is vertically opened on the support seat (13); the transmission mechanism (4) comprises a connecting rod 1 (41) slidably connected to the slide groove 1 (131); a transmission housing (42) is slidably sleeved on one end of the connecting rod 1 (41) away from the support seat (13); the transmission housing (42) is slidably connected to the guide rail 2 (16); a transmission spring (43) is arranged between the support seat (13) and the transmission housing (42); a guide rail 3 (45) is hingedly connected to the support block (12) through a rotating pin (44); the positioning block 2 (122) is fixedly connected to the guide rail 3 (45); and the transmission housing (42) is fixedly connected to the slide rod 2 (46) slidably arranged on the guide rail 3 (45).

4. A welding device for bed frame processing according to claim 3, characterized in that: The slide groove in the guide rail three (45) is arranged to be inclined relative to the side surface of the guide rail three (45).

5. A welding device for bed frame processing according to claim 3, characterized in that: The slide groove provided inside the guide rail 1 (15) is a dovetail groove.

6. A welding device for bed frame processing according to claim 2, characterized in that: The driving block (11) is provided with a first transmission bevel (111), and the supporting block (12) is provided with a second transmission bevel (123) capable of abutting against the first transmission bevel (111).

7. A welding device for bed frame processing according to claim 3, characterized in that: A telescopic rod (47) having a damping effect is fixedly connected between the support block (12) and the workbench (1).

8. A welding device for bed frame processing according to claim 1, characterized in that: The driving mechanism (5) comprises a linear driver (51) connected to the bottom surface of the workbench (1); a driving shaft of the linear driver (51) is hinged with a rotating rod (52); an end of the rotating rod (52) away from the linear driver (51) is fixedly connected to a driving gear (53); transmission racks (54) are meshed at both ends of the driving gear (53); each transmission rack (54) is fixedly connected to a transmission shaft (55); and the driving blocks (11) located on the same side of the cross bar (31) are fixedly connected to a transmission shaft (55).

9. A welding device for bed frame processing according to claim 1, characterized in that: The workbench (1) is provided with a second driving mechanism (7), and the second driving mechanism (7) is used to drive the welding gun (2) to move and weld the cross bar (31) and the longitudinal bar (32).

10. A welding device for bed frame processing according to claim 9, characterized in that: The driving mechanism 2 (7) comprises a sliding frame 1 (71) and a linear driver 2 (72) for driving the sliding frame 1 (71) to slide horizontally along the workbench (1); the sliding frame 1 (71) is provided with a sliding frame 2 (73) and a linear driver 3 (74) for driving the sliding frame 2 (73) to move horizontally; the moving direction of the sliding frame 2 (73) is perpendicular to the sliding frame 1 (71); the sliding frame 2 (73) is provided with a sliding frame 3 (75) and a linear driver 4 (76) for driving the sliding frame 3 (75) to move in the vertical direction; the sliding frame 3 (75) is fixedly connected with a rotation source (77); the driving shaft of the rotation source (77) is fixedly connected to the welding gun (2) via a connecting rod 2 (78).

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