Adjustable positioning clamping device
By designing an adjustable positioning and clamping device, using multiple mechanisms to position and clamp the channel-type workpieces, the problems of high difficulty and low accuracy in positioning and welding in the prior art are solved, and efficient and accurate welding effects are achieved.
Patent Information
- Application Number
- CN202011344770.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-11-26
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2040-11-26
AI Technical Summary
The prior art cannot effectively locate and clamp the channel-type workpiece, resulting in high welding difficulty, low accuracy, difficult to control the deformation amount, and lack of suitable positioning tools.
An adjustable positioning clamping device is designed, including a left positioning extrusion mechanism and a right positioning extrusion mechanism, which is used in combination of various mechanisms (such as side top tightening mechanism, top down pressure mechanism, bottom positioning mechanism) The bottom, sides and top of the channel-like workpiece are positioned and clamped to ensure the control of welding accuracy and deformation.
It realizes efficient positioning and clamping of channel-type workpieces, improves welding accuracy and working efficiency, reduces welding deformation, and is suitable for workpieces of different sizes and specifications.
Smart Images
Figure CN112247460B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of boarding bridge passage installation, in particular to an adjustable positioning clamping device. Background Art
[0002] The passenger boarding bridge is a movable and liftable passage connecting the terminal hall and the aircraft at the airport. One end of the passenger boarding bridge is connected to a boarding gate of the terminal building, and the other end is connected to the aircraft cabin door. Passengers enter the aircraft through the passage from the corresponding boarding gate. The passenger boarding bridge not only shortens the distance between the terminal building and the aircraft, but also protects passengers from the sun and rain, greatly facilitating the boarding of passengers, and gradually becoming the mainstream boarding method. As we all know, the boarding bridge passage is designed as a welding machine structure, and the passage is generally divided into left and right truss components and top and bottom components combined and welded. After searching, Chinese patent CN207508565U discloses a welding tool for a single-side truss of a boarding bridge passage, including a frame, a workbench for placing workpieces to be welded, at least one set of horizontal clamping mechanisms, and the The horizontal clamping mechanism is arranged on the frame and located on one side of the workbench. The horizontal clamping mechanism can clamp the workpiece in the horizontal direction. At least one group of vertical clamping mechanisms is arranged on the frame. The vertical clamping mechanism can clamp the workpiece in the vertical direction. The shortcomings of the above patent are: the above patent can only position and clamp the truss on one side, and cannot be used for channel workpieces, because channel workpieces require combined welding of the truss components on both sides and the top and bottom components. It is far from enough to position only the truss on one side. Moreover, during combined welding, each component of the channel needs to be positioned. There are many components and the welding difficulty is great. At present, there is no suitable positioning tool for positioning. How to control the welding deformation of channel workpieces during the welding process and ensure dimensional accuracy has become an existing technical problem. Summary of the invention
[0003] The purpose of the present invention is to solve the deficiencies of the prior art and to provide an adjustable positioning and clamping device which has a novel structure, is suitable for positioning and clamping channel workpieces of different sizes, is convenient for welding, has high working efficiency, high welding accuracy, and controllable welding deformation.
[0004] To achieve the above purpose, the technical solution adopted by the present invention is:
[0005] An adjustable positioning clamping device comprises a welding platform, characterized in that: a left positioning extrusion mechanism and a right positioning extrusion mechanism are arranged on the welding platform at intervals, the left positioning extrusion mechanism comprises a bottom left-side pressing mechanism, a left-side side pressing mechanism and a top left-side pressing mechanism, the lower end of the left-side side pressing mechanism is connected to the bottom left-side pressing mechanism, and the upper end is connected to the top left-side pressing mechanism, the left-side side pressing mechanism and the bottom left-side pressing mechanism are respectively connected to the welding platform, the right positioning extrusion mechanism comprises a bottom right-side positioning mechanism, a right-side side positioning mechanism and a top right-side pressing mechanism, and a bottom right-side positioning mechanism is provided below the right-side side positioning mechanism Positioning mechanism, the upper end of the right side positioning mechanism is connected to the top right pressing mechanism, the lower end of the right side positioning mechanism and the bottom right positioning mechanism are respectively connected to the welding platform, the bottom right positioning mechanism and the bottom left pressing mechanism are spaced opposite to each other, the bottom of the workpiece on the welding platform is positioned and clamped, the right side positioning mechanism and the left side pressing mechanism are spaced opposite to each other, the two sides of the workpiece on the welding platform are positioned and clamped, the top right pressing mechanism and the top left pressing mechanism are spaced apart, the top of the workpiece on the welding platform is positioned and pressed, so as to facilitate the subsequent welding of channel-type workpieces, with high welding precision and controllable welding deformation.
[0006] The left end of the right positioning push rod forms a free positioning end, so as to facilitate the left end of the right positioning push rod to resist the right side of the channel-type workpiece through the left end of the right positioning push rod, and facilitate subsequent extrusion, a bottom right positioning mechanism is provided on the left side of the lower end of the right column, and the bottom right positioning mechanism includes a bottom right positioning seat, and the bottom right positioning mechanism includes a bottom right positioning seat, and the bottom right positioning The right side support plate is connected with the support frame of the bottom plate, and the upper end is connected with the lower end of the bottom plate to support the bottom of the workpiece through the upper end surface of the bottom support plate, and the right side limit plate is used to limit the right side of the bottom of the workpiece to limit the right side of the bottom of the workpiece.
[0007] The left side tightening mechanism of the present invention comprises a left column, a left mounting seat, an adjusting screw, a sliding bracket, a nut seat, a boss, a bearing, a side tightening cylinder and a side supporting seat, a left mounting seat is provided in front of the left column, the lower end of the left column is fixedly connected to the welding platform, an adjusting screw is provided in front of the left column, the left mounting seat is fixedly connected to the left column, a longitudinal guide rail is fixedly provided on the left mounting seat, a sliding bracket is provided on the left mounting seat, the sliding bracket is slidably connected to the left mounting seat, a nut seat is provided on the sliding bracket, the nut seat is fixedly connected to the sliding bracket, a boss is provided above the nut seat, the boss is fixedly connected to the left mounting seat, one end of the adjusting screw is connected to the left mounting seat through the bearing The boss is connected, and the other end passes through the nut seat and is threadedly connected to the nut seat, so as to facilitate the nut seat to move up and down by rotating the adjusting screw, and then drive the sliding bracket to move up and down. A side tightening cylinder is horizontally provided on the sliding bracket, and a side support seat is fixedly provided on the sliding bracket. The side tightening cylinder is fixedly connected to the side support seat, and the left end of the piston rod of the side tightening cylinder forms a free extrusion end, so as to facilitate positioning the left side of the extruded workpiece by the piston rod of the side tightening cylinder. A bottom left tightening mechanism is provided at the lower end of the left column, and a piston rod through-hole is provided at the lower end of the left column. The bottom left tightening mechanism includes a bottom tightening cylinder, a cylinder support seat, a bottom guide rail support and a tightening block. The left side of the left column A hydraulic cylinder support seat is provided, and a bottom guide rail support is provided on the right side of the left column, the hydraulic cylinder support seat and the bottom guide rail support are respectively fixedly connected to the welding platform, the bottom tightening hydraulic cylinder is placed on the hydraulic cylinder support seat and fixedly connected to the hydraulic cylinder support seat, the piston rod of the bottom tightening hydraulic cylinder passes through the piston rod through-hole of the left column and is fixedly connected to the tightening block, the lower end of the tightening block is placed on the bottom guide rail support, the bottom guide rail support is provided with a guide rail, the tightening block is slidably connected with the bottom guide rail support, so as to facilitate placing the channel workpiece on the bottom guide rail support, the bottom tightening hydraulic cylinder drives the tightening block to move left and right through the piston rod, so as to position and squeeze the bottom left side of the channel workpiece, the upper end of the left column is provided with a top left pressing mechanism, the top The left-side pressing mechanism includes a slewing bearing, a fixed sleeve, a sliding sleeve, a sliding support and a left-side top pressing cylinder. A fixed sleeve is provided at the upper end of the left column, and the lower end of the fixed sleeve is connected to the left column via a slewing bearing. A sliding sleeve is transversely provided in the fixed sleeve, and the sliding sleeve is slidably connected to the fixed sleeve. A sliding support is transversely provided in the sliding sleeve, and the sliding support is slidably connected to the sliding sleeve. A left-side top pressing cylinder is provided on one side of the sliding support, and the cylinder seat of the left-side top pressing cylinder is fixedly connected to the sliding support. The piston rod of the left-side top pressing cylinder forms a free pressing end downward, so as to facilitate the piston rod to be driven downward to retract and contract by the left-side top pressing cylinder to press down the top of the workpiece on the welding platform.
[0008] The lower ends of the left and right top pressing cylinders are respectively provided with pressing guide mechanisms, and the pressing guide mechanisms include a hydraulic support plate, a pressing guide block, a sliding bearing and a pressing and clamping shaft, and one side of the sliding support is fixedly provided with a hydraulic support plate and a pressing guide block at intervals, and one side of the right cylinder mounting seat is fixedly provided with a hydraulic support plate and a pressing guide block at intervals, and the right top pressing cylinder or the left top pressing cylinder is fixedly connected to the hydraulic support plate, and the upper end of the pressing and clamping shaft passes through the pressing guide block and is fixedly connected to the lower end of the piston rod of the right top pressing cylinder or the left top pressing cylinder, and the pressing and clamping shaft is connected to the pressing guide block via a sliding bearing, and the lower end of the pressing and clamping shaft forms a free pressing end, so as to facilitate guiding the pressing and clamping shaft through the pressing guide block, and at the same time, the piston rod of the right top pressing cylinder or the left top pressing cylinder drives the pressing and clamping shaft to move up and down to realize the top clamping of the workpiece.
[0009] The sliding bracket of the present invention is provided with a left-side guide mechanism, and the left-side guide mechanism includes a side guide block, a sliding bearing and a side clamping shaft. A side guide block is provided on the right side of the side support seat, and the side guide block is fixedly connected to the sliding bracket. A sliding bearing is provided in the middle of the side guide block. One end of the side clamping shaft is fixedly connected to the piston rod of the side clamping cylinder, and the other end passes through the side guide block and is placed on the right side of the column. The side clamping shaft is slidably connected to the side guide block via the sliding bearing, so as to support and guide the side clamping shaft through the guide block.
[0010] The fixed sleeve and the sliding sleeve of the present invention are respectively provided with locking mechanisms, and the locking mechanisms include a knob, a screw and a baffle, the fixed sleeve is provided with a knob on the outer side, a baffle is provided between the inner wall of the fixed sleeve and the outer wall of the sliding sleeve, a knob is provided on the outer side of one end of the sliding sleeve, a baffle is provided between the inner wall of the sliding sleeve and the outer wall of the sliding support, one end of the screw is fixedly connected to the knob, and the other end passes through the fixed sleeve or the sliding sleeve and is fixedly connected to the baffle, and the screw is threadedly connected to the fixed sleeve or the sliding sleeve, so that when the sliding sleeve moves to an appropriate position, the knob is rotated so that the gasket abuts against the outer wall of the sliding sleeve to fix the position of the sliding sleeve, and when the sliding support moves to an appropriate position, the knob is rotated so that the gasket abuts against the outer wall of the sliding support to fix the position of the sliding support, thereby fixing the position of the left top downward pressure cylinder.
[0011] The left and right outer walls of the sliding sleeve of the present invention are respectively provided with limit blocks, and the left and right outer walls of the sliding support are respectively provided with limit blocks, and the limit blocks are fixedly connected to the sliding sleeve or the sliding support, so as to limit the left and right movement of the sliding sleeve and the sliding support by the limit blocks, and prevent the sliding sleeve from sliding out of the fixed sleeve and the sliding support from sliding out of the sliding sleeve.
[0012] The outer wall of the sliding sleeve and the outer wall of the sliding support are respectively provided with handles, which are fixedly connected to the sliding sleeve or the sliding support, so as to facilitate the movement of the sliding sleeve or the sliding support by pulling the handle, thereby changing the position of the left top downward pressure cylinder.
[0013] Due to the adoption of the above structure, the present invention has the advantages of novel structure, suitability for positioning and clamping channel workpieces of different sizes, convenient welding, high working efficiency, high welding precision, controllable welding deformation, etc. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the present invention.
[0015] Figure 2 It is a left side view of the present invention.
[0016] Figure 3 It is a schematic diagram of the left positioning extrusion mechanism in the present invention.
[0017] Figure 4 The present invention Figure 3 main view.
[0018] Figure 5 It is a schematic diagram of the top left side pressing mechanism in the present invention.
[0019] Figure 6 It is a partial schematic diagram of the left side tightening mechanism in the present invention.
[0020] Figure 7 It is a schematic diagram of the bottom left side tightening mechanism in the present invention.
[0021] Figure 8 It is a schematic diagram of the right positioning extrusion mechanism in the present invention.
[0022] Fig. 9 The present invention Figure 8 main view.
[0023] Fig.10 It is a schematic diagram of the top right side pressing mechanism in the present invention.
[0024] Fig.11 It is a partial schematic diagram of the right side positioning mechanism in the present invention.
[0025] Figure symbols: left positioning and squeezing mechanism 1, right positioning and squeezing mechanism 2, bottom left side tightening mechanism 3, left side tightening mechanism 4, top left pressing mechanism 5, bottom right side positioning mechanism 6, right side positioning mechanism 7, top right pressing mechanism 8, right column 9, right mounting seat 10, fixing block 11, right positioning push rod 12, positioning pin 13, bottom right positioning seat 14, bottom support plate 15, right limit plate 16, slewing bearing 17, right cylinder mounting seat 18, right top pressing cylinder 19, left column 20, left mounting seat 21, adjustment Screw 22, sliding bracket 23, nut seat 24, boss 25, side tightening cylinder 26, side support seat 27, bottom tightening cylinder 28, cylinder support seat 29, bottom guide rail support 30, tightening block 31, fixed sleeve 32, sliding sleeve 33, sliding support 34, left top downward pressure cylinder 35, downward pressure guide mechanism 36, hydraulic support plate 37, downward pressure guide block 38, downward pressure clamping shaft 39, left side guide mechanism 40, side guide block 41, side clamping shaft 42, limit block 43, handle 44, locking mechanism 45, knob 46, workpiece 100. DETAILED DESCRIPTION
[0026] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.
[0027] An adjustable positioning clamping device includes a welding platform, characterized in that: a left positioning extrusion mechanism 1 and a right positioning extrusion mechanism 2 are arranged on the welding platform at intervals, the left positioning extrusion mechanism 1 includes a bottom left-side pressing mechanism 3, a left-side side pressing mechanism 4 and a top left-side pressing mechanism 5, the lower end of the left-side side pressing mechanism 4 is connected to the bottom left-side pressing mechanism 3, and the upper end is connected to the top left-side pressing mechanism 5, the left-side side pressing mechanism 4 and the bottom left-side pressing mechanism 3 are respectively connected to the welding platform, the right positioning extrusion mechanism 2 includes a bottom right-side positioning mechanism 6, a right-side side positioning mechanism 7 and a top right-side pressing mechanism 8, and a bottom right-side positioning mechanism 7 is provided with a bottom right-side positioning mechanism Structure 6, the upper end of the right side positioning mechanism 7 is connected to the top right pressing mechanism 8, the lower end of the right side positioning mechanism 7 and the bottom right positioning mechanism 6 are respectively connected to the welding platform, the bottom right positioning mechanism 6 and the bottom left pressing mechanism 3 are spaced apart from each other, and the bottom of the workpiece 100 on the welding platform is positioned and clamped, the right side positioning mechanism 7 and the left side pressing mechanism 4 are spaced apart from each other, and the two sides of the workpiece 100 on the welding platform are positioned and clamped, the top right pressing mechanism 8 and the top left pressing mechanism 5 are spaced apart, and the top of the workpiece 100 on the welding platform is positioned and clamped, so as to facilitate the subsequent welding of channel-type workpieces, with high welding accuracy and controllable welding deformation.
[0028] The right side positioning mechanism 7 of the present invention comprises a right column 9, a right mounting seat 10, a fixing block 11, a right positioning ejector rod 12, and a positioning pin 13. The lower end of the right column 9 is fixedly connected to the welding platform. The right mounting seat 10 is arranged at intervals from top to bottom in front of the right column 9. The right mounting seat 10 is fixedly connected to the right column 9. A fixing block 11 is fixedly arranged on the right mounting seat 10. The fixing block 11 is laterally provided with an ejector rod through hole. The upper end surface of the fixing block 11 is provided with a pin hole. The ejector rod through hole and the pin hole are connected. The outer wall of the right positioning push rod 12 is provided with a positioning pin hole, and the right end of the right positioning push rod 12 passes through the fixing block 11 and enters the positioning pin hole through the positioning pin 13 to fix the right positioning push rod 12 with the fixing block 11. The left end of the right positioning push rod 12 forms a free positioning end, so as to facilitate the left end of the right positioning push rod to resist the right side of the channel-type workpiece, which is convenient for subsequent extrusion. The bottom right positioning mechanism 6 is provided on the left side of the lower end of the right column 9, and the bottom right positioning mechanism 6 includes a bottom right positioning seat 14. The bottom right positioning seat 14 includes a bottom support plate 15 and a right limit plate 16. The right limit plate 16 is provided in the middle or right side of the bottom support plate 15. The lower end of the bottom support plate 15 is fixedly connected to the welding platform, and the upper end is vertically fixedly connected to the lower end of the right limit plate 16, so as to facilitate supporting the bottom of the workpiece through the upper surface of the bottom support plate. The right limit plate is used to limit the right side of the bottom of the workpiece, and the right side of the bottom of the workpiece is limited. The upper end of the right column 9 is provided with a top right pressing mechanism 8, and the top right pressing mechanism 8 includes a return A slewing bearing 17, a right-side hydraulic cylinder mounting seat 18 and a right-side top downward-pressing hydraulic cylinder 19. The upper end of the right-side column 9 is connected to the right-side hydraulic cylinder mounting seat 18 via a slewing bearing 17. A right-side top downward-pressing hydraulic cylinder 19 is provided on one side of the right-side hydraulic cylinder mounting seat 18. The hydraulic cylinder seat of the right-side top downward-pressing hydraulic cylinder 19 is fixedly connected to the right-side hydraulic cylinder mounting seat 18. The piston rod of the right-side top downward-pressing hydraulic cylinder 19 forms a free downward-pressing end downwardly, so as to facilitate the piston rod to be driven downward by the right-side top downward-pressing hydraulic cylinder to press down the top of the workpiece on the welding platform.
[0029] The left side tightening mechanism 4 of the present invention comprises a left column 20, a left mounting seat 21, an adjusting screw 22, a sliding bracket 23, a nut seat 24, a boss 25, a bearing, a side tightening cylinder 26 and a side support seat 27. A left mounting seat 21 is provided in front of the left column 20, and the lower end of the left column 20 is fixedly connected to the welding platform. An adjusting screw 22 is provided in front of the left column 20, and the left mounting seat 21 is fixedly connected to the left column 20. A longitudinal guide rail is fixedly provided on the left mounting seat 21, and a sliding bracket 23 is provided on the left mounting seat 21. The sliding bracket 23 is slidably connected to the left mounting seat 21, and a nut seat 24 is provided on the sliding bracket 23. The nut seat 24 is connected to the sliding bracket 23. The screw nut 24 is fixedly connected, and a boss 25 is provided above the screw nut seat 24, and the boss 25 is fixedly connected to the left mounting seat 21. One end of the adjusting screw 22 is connected to the boss 25 via a bearing, and the other end passes through the screw nut seat 24 and is threadedly connected to the screw nut seat 24, so as to facilitate the screw nut seat to move up and down by rotating the adjusting screw, thereby driving the sliding bracket to move up and down. A side tightening cylinder 26 is horizontally provided on the sliding bracket 23, and a side support seat 27 is fixedly provided on the sliding bracket 23. The side tightening cylinder 26 is fixedly connected to the side support seat 27, and the left end of the piston rod of the side tightening cylinder 26 forms a free extrusion end, so as to facilitate the positioning of the left side of the extruded workpiece by the piston rod of the side tightening cylinder. The lower end of the left column 20 A bottom left tightening mechanism 3 is provided, and a piston rod through-hole is provided at the lower end of the left column 20. The bottom left tightening mechanism 3 includes a bottom tightening cylinder 28, a cylinder support seat 29, a bottom guide rail support 30 and a tightening block 31. A cylinder support seat 29 is provided on the left side of the left column 20, and a bottom guide rail support 30 is provided on the right side of the left column 20. The cylinder support seat 29 and the bottom guide rail support 30 are respectively fixedly connected to the welding platform. The bottom tightening cylinder 28 is placed on the cylinder support seat 29 and fixedly connected to the cylinder support seat 29. The piston rod of the bottom tightening cylinder 28 passes through the piston rod through-hole of the left column 20 and is fixedly connected to the tightening block 31. The lower end of the tightening block 31 is placed on the bottom guide rail support 30. A guide rail is provided on 30, and the clamping block 31 is slidably connected with the bottom guide rail support 30 to facilitate placing the channel-type workpiece on the bottom guide rail support. The bottom clamping cylinder drives the clamping block to move left and right through the piston rod to position and squeeze the bottom left side of the channel-type workpiece. A top left pressing mechanism 5 is provided on the upper end of the left column 20. The top left pressing mechanism 5 includes a slewing bearing, a fixed sleeve 32, a sliding sleeve 33, a sliding support 34 and a left top pressing cylinder 35. A fixed sleeve 32 is provided on the upper end of the left column 20. The lower end of the fixed sleeve 32 is connected to the left column 20 via a slewing bearing 17. A sliding sleeve 33 is transversely provided in the fixed sleeve 32. The sliding sleeve 33 is slidably connected to the fixed sleeve 32.A sliding support 34 is transversely arranged in the sliding sleeve 33, and the sliding support 34 is slidably connected to the sliding sleeve 33. A left top pressing cylinder 35 is arranged on one side of the sliding support 34, and the cylinder seat of the left top pressing cylinder 35 is fixedly connected to the sliding support 34. The piston rod of the left top pressing cylinder 35 forms a free pressing end downward, so as to facilitate the piston rod to be driven downward to press down the top of the workpiece on the welding platform through the left top pressing cylinder.
[0030] The lower ends of the left top downward pressure hydraulic cylinder 35 and the right top downward pressure hydraulic cylinder 19 of the present invention are respectively provided with downward pressure guide mechanisms 36, and the downward pressure guide mechanisms 36 include hydraulic support plates 37, downward pressure guide blocks 38, sliding bearings and downward pressure clamping shafts 39. The hydraulic support plates 37 and downward pressure guide blocks 38 are fixedly arranged at intervals on one side of the sliding support 34, and the hydraulic support plates 37 and downward pressure guide blocks 38 are fixedly arranged at intervals on one side of the right cylinder mounting seat 18. The right top downward pressure hydraulic cylinder 19 or the left top downward pressure hydraulic cylinder 35 and the hydraulic support plates 37 and downward pressure guide blocks 38 are fixedly arranged at intervals on one side of the sliding support 34. The pressure support plate 37 is fixedly connected, and the upper end of the downward pressing shaft 39 passes through the downward pressing guide block 38 and is fixedly connected to the lower end of the piston rod of the right top downward pressing cylinder 19 or the left top downward pressing cylinder 35. The downward pressing shaft 39 is connected to the downward pressing guide block 38 via a sliding bearing, and the lower end of the downward pressing shaft 39 forms a free downward pressing end, which is convenient for guiding the downward pressing shaft through the downward pressing guide block. At the same time, the piston rod of the right top downward pressing cylinder or the left top downward pressing cylinder drives the downward pressing shaft to move up and down to realize the top pressing of the workpiece.
[0031] The sliding bracket 23 described in the present invention is provided with a left-side guide mechanism 40, and the left-side guide mechanism 40 includes a side guide block 41, a sliding bearing and a side clamping shaft 42. A side guide block 41 is provided on the right side of the side support seat 27, and the side guide block 41 is fixedly connected to the sliding bracket 23. A sliding bearing is provided in the middle of the side guide block 41. One end of the side clamping shaft 42 is fixedly connected to the piston rod of the side clamping cylinder 26, and the other end passes through the side guide block 41 and is placed on the right side of the left column 20. The side clamping shaft 42 is slidably connected to the side guide block 41 via the sliding bearing, so as to support and guide the side clamping shaft through the guide block.
[0032] The fixed sleeve 32 and the sliding sleeve 33 of the present invention are respectively provided with a locking mechanism 45, and the locking mechanism 45 includes a knob 46, a screw and a baffle. The fixed sleeve 32 is provided with a knob 46 on the outside, and a baffle is provided between the inner wall of the fixed sleeve 32 and the outer wall of the sliding sleeve 33. A knob 46 is provided on the outside of one end of the sliding sleeve 33, and a baffle is provided between the inner wall of the sliding sleeve 33 and the outer wall of the sliding support 34. One end of the screw is fixedly connected with the knob 46, and the other end passes through the fixed sleeve 32 or the sliding sleeve 33 and is fixedly connected with the baffle. The screw is threadedly connected with the fixed sleeve 32 or the sliding sleeve 33, so that when the sliding sleeve moves to a suitable position, the knob is rotated so that the gasket abuts against the outer wall of the sliding sleeve to fix the position of the sliding sleeve. When the sliding support moves to a suitable position, the knob is rotated so that the gasket abuts against the outer wall of the sliding support to fix the position of the sliding support, thereby fixing the position of the left top downward pressure cylinder.
[0033] The left and right outer walls of the sliding sleeve 33 of the present invention are respectively provided with limit blocks 43, and the left and right outer walls of the sliding support 34 are respectively provided with limit blocks 43. The limit blocks 43 are fixedly connected to the sliding sleeve 33 or the sliding support 34, so as to limit the left and right movement of the sliding sleeve and the sliding support through the limit blocks, and prevent the sliding sleeve from sliding out of the fixed sleeve and the sliding support from sliding out of the sliding sleeve.
[0034] A handle 44 is provided on one side of the outer wall of the sliding sleeve 33 and the outer wall of the sliding support 34 of the present invention, and the handle 44 is fixedly connected to the sliding sleeve 33 or the sliding support 34, so as to facilitate the movement of the sliding sleeve or the sliding support by pulling the handle, thereby changing the position of the left top downward pressure cylinder.
[0035] As attached Figure 1 -Attached Fig.11 In the process of welding channel-type workpieces, the present invention can realize the positioning and clamping of workpieces of different sizes. Before use, the various mechanisms in the left positioning and extrusion mechanism 1 are adjusted to the reverse limit position, and the fixed sleeve 32 of the top left pressing mechanism 5 in the left positioning and extrusion mechanism 1 is rotated through the slewing bearing so that the left top pressing cylinder 35 is turned to the left side of the left column 20, and the right cylinder mounting seat 18 of the top right pressing mechanism 8 in the right positioning and extrusion mechanism 2 is rotated so that the right top pressing cylinder 19 is turned to the right side of the right column 9 to prevent interference in the subsequent assembly process.
[0036] When assembling, the bottom part of the channel workpiece 100 is first positioned and clamped: Figure 1 , Attachment Figure 8 and attached Fig. 9According to the width of the bottom part of the channel workpiece 100, adjust the distance between the bottom left tightening mechanism 3 and the bottom right positioning mechanism 6. Specifically, first fix the bottom plate right positioning seat 14 on the welding platform through screws and mounting holes, and then place the right end of the bottom part of the channel workpiece 100 on the bottom support plate 15, and the right side of the bottom part of the channel workpiece 100 is against the right limit plate 16, as shown in the attached figure. Figure 3 , Attachment Figure 4 and attached Figure 7 Then, the left end of the bottom component of the channel workpiece 100 is placed on the bottom guide rail support 30 of the bottom left side clamping mechanism 3, and the left side of the bottom component of the channel workpiece 100 is against the clamping block 31 to ensure that the channel workpiece 100 is placed securely, and the clamping block 31 can cooperate with the right side positioning seat 14 of the bottom plate under the drive of the bottom clamping hydraulic cylinder 28 to clamp the bottom component of the channel workpiece 100, so that the bottom guide rail support 30 and the hydraulic cylinder support seat 29 of the bottom left side clamping mechanism 3 are fixed on the welding platform through screws and mounting holes respectively.
[0037] The second is the positioning and clamping of the two side parts of the channel workpiece 100: Figure 8 , Attachment Fig. 9 and attached Fig.11 , the right side positioning push rod 12 of the right side positioning mechanism 7 is pressed against the outer wall of the right side component of the channel workpiece, so that the lower end of the right column 9 is fixed to the welding platform through screws and mounting holes, as shown in the attached Figure 3 , Attachment Figure 4 and attached Figure 6 The side clamping shaft 42 of the left side clamping mechanism 4 is pressed against the outer wall of the left side component of the channel workpiece, so that the lower end of the left column 20 is fixed to the welding platform through screws and mounting holes, and the side clamping shaft 42 is driven to move rightward by driving the side clamping cylinder 26 to cooperate with the right positioning push rod 12 to position and clamp the two side components of the channel workpiece 100.
[0038] Finally, the top part of the channel workpiece 100 is positioned and clamped: as shown in the attached Figure 3 , Attachment Figure 4 and attached Figure 5 , rotate the left top pressing cylinder 35 in the top left pressing mechanism 5 to the right side of the left column 20 through the slewing bearing, so that the lower end of the left top pressing cylinder 35 faces the top component of the channel workpiece 100, and then drive the left top pressing cylinder 35 so that the pressing shaft 39 at the lower end of the left top pressing cylinder 35 abuts against the outer wall of the top component of the channel workpiece 100, as shown in the attached figure. Figure 8 , Attachment Fig. 9 and attached Fig.10Then, the right side top pressing cylinder 19 of the top right side pressing mechanism 8 is rotated to the left side of the right side column through the slewing bearing, the knob 46 of the locking mechanism 45 on the fixed sleeve 32 and the sliding sleeve 33 is rotated, and the sliding sleeve 33 and the sliding support 34 are pulled by the handle 44 to adjust the position of the sliding sleeve 33 and the sliding support 34 so that the lower end of the right side top pressing cylinder 19 is facing the top component of the channel-type workpiece 100, and then the knob 46 is locked, and the lower end of the right side top pressing cylinder 19 is driven to move downward. The clamping shaft 39 can be pressed against the outer wall of the top component of the channel workpiece 100, so that the bottom component, the two side components and the top component of the channel workpiece 100 are synchronously positioned and clamped; because the channel is usually very long, the components on both sides are relatively long, and multiple groups of left positioning and squeezing mechanisms 1 and right positioning and squeezing mechanisms 2 can be set on both sides of the channel as needed, and the top clamping cylinder 28 drives the clamping block 31 and the bottom right positioning seat 14 to cooperate in positioning and clamping the bottom component of the channel workpiece 100, and the side clamping shaft 4 is driven by the side clamping cylinder 26 2 and the right positioning push rod 12 cooperate to position and clamp the two side parts of the channel workpiece 100, and the left top pressing liquid cylinder 35 and the right top pressing liquid cylinder 19 drive the pressing and clamping shaft 39 at their lower ends to cooperate with the bottom guide rail support 30 and the bottom support plate 15 to position and clamp the top parts of the channel workpiece 100, so as to complete the positioning and clamping of the various parts of the entire channel workpiece 100. The above-mentioned liquid cylinders are all provided with control start switches. After the above process is completed, the welding of each weld is started. After the welding is completed, the left top pressing liquid cylinder 35 and the right top pressing liquid cylinder 19 are turned on. The cylinder 19 drives the downward clamping shaft 39 at its lower end to rise and detach from the outer wall of the top component of the channel workpiece 100, and then rotates the left top downward pressure hydraulic cylinder 35 to the left side of the left column 20 through the slewing bearing, and rotates the right top downward pressure hydraulic cylinder 19 to the right side of the right column 9, and the side clamping hydraulic cylinder 26 drives the side clamping shaft 42 away from the outer wall of the left component of the channel workpiece 100, and the bottom top clamping hydraulic cylinder 28 drives the clamping block 31 away from the bottom component of the channel workpiece 100, and the channel workpiece 100 is hoisted out of the tooling to complete the manufacturing process.
[0039] As attached Figure 3 , Attachment Figure 7 and attached Figure 8 In the present invention, mounting holes are provided on the bottom right positioning seat 14, the right column 9, the left column 20, the cylinder support seat 29 and the bottom guide rail support 30, which are fixedly connected to the welding platform through the mounting holes and screws. The screw connection is convenient for disassembly and assembly. The distance between the bottom right positioning seat 14 and the bottom guide rail support 30, as well as the distance between the right column 9 and the left column 20 can be changed according to the size of the channel-type workpiece, thereby realizing the positioning and clamping of workpieces of different sizes, and having wide applicability.
[0040] Due to the adoption of the above structure, the present invention has the advantages of novel structure, suitability for positioning and clamping channel workpieces of different sizes, convenient welding, high working efficiency, high welding precision, controllable welding deformation, etc.
Claims
1. An adjustable positioning clamping device, comprising a welding platform, characterized in that: The welding platform is provided with multiple groups of left positioning and squeezing mechanisms and right positioning and squeezing mechanisms at intervals, the left positioning and squeezing mechanism includes a bottom left-side pressing mechanism, a left-side side pressing mechanism and a top left-side pressing mechanism, the lower end of the left-side side pressing mechanism is connected to the bottom left-side pressing mechanism, and the upper end is connected to the top left-side pressing mechanism, the left-side side pressing mechanism and the bottom left-side pressing mechanism are respectively connected to the welding platform, the right positioning and squeezing mechanism includes a bottom right-side positioning mechanism, a right-side side positioning mechanism and a top right-side pressing mechanism, a bottom right-side positioning mechanism is provided below the right-side side positioning mechanism, the upper end of the right-side side positioning mechanism is connected to the top right-side pressing mechanism, the lower end of the right-side side positioning mechanism and the bottom right-side positioning mechanism are respectively connected to the welding platform, the bottom right-side positioning mechanism and the bottom left-side pressing mechanism are spaced oppositely, the bottom of the workpiece on the welding platform is positioned and clamped, the right-side side positioning mechanism and the left-side side pressing mechanism are spaced oppositely, the two sides of the workpiece on the welding platform are positioned and clamped, the top right-side pressing mechanism and the top left-side pressing mechanism are spaced apart, the top of the workpiece on the welding platform is positioned and clamped, The right side positioning mechanism comprises a right column, a right mounting seat, a fixing block, a right positioning push rod, and a positioning pin, the lower end of the right column is fixedly connected to the welding platform, the front of the right column is provided with a right mounting seat from top to bottom, the right mounting seat is fixedly connected to the right column, the right mounting seat is fixedly provided with a fixing block, the fixing block is transversely provided with a push rod through hole, the upper end surface of the fixing block is provided with a pin hole, the push rod through hole and the pin hole are connected, the outer wall of the right positioning push rod is provided with a positioning pin hole, the right end of the right positioning push rod passes through the fixing block and the positioning pin passes through the pin hole to enter the positioning pin hole to fix the right positioning push rod with the fixing block, the left end of the right positioning push rod forms a free positioning end, and the left side of the lower end of the right column is provided with a bottom right positioning mechanism The structure, the bottom right positioning mechanism includes a bottom right positioning seat, the bottom right positioning seat includes a bottom support plate and a right limiting plate, the middle or right side of the bottom support plate is provided with a right limiting plate, the lower end of the bottom support plate is fixedly connected to the welding platform, and the upper end is vertically fixedly connected to the lower end of the right limiting plate, the upper end of the right column is provided with a top right pressing mechanism, the top right pressing mechanism includes a slewing bearing, a right cylinder mounting seat and a right top pressing cylinder, the upper end of the right column is connected to the right cylinder mounting seat via a slewing bearing, one side of the right cylinder mounting seat is provided with a right top pressing cylinder, the cylinder seat of the right top pressing cylinder is fixedly connected to the right cylinder mounting seat, and the piston rod of the right top pressing cylinder forms a free pressing end downward,The left side tightening mechanism comprises a left column, a left mounting seat, an adjusting screw, a sliding bracket, a nut seat, a boss, a bearing, a side tightening cylinder and a side supporting seat. A left mounting seat is provided in front of the left column, and the lower end of the left column is fixedly connected to the welding platform. An adjusting screw is provided in front of the left column. The left mounting seat is fixedly connected to the left column. A longitudinal guide rail is fixedly provided on the left mounting seat. A sliding bracket is provided on the left mounting seat. The sliding bracket is slidably connected to the left mounting seat. A nut seat is provided on the sliding bracket, and the nut seat is fixedly connected to the sliding bracket. A boss is provided above the nut seat, and the boss is fixedly connected to the left mounting seat. One end of the adjusting screw is connected to the boss via a bearing, and the other end passes through the nut seat and is threadedly connected to the nut seat. A side tightening cylinder is horizontally provided on the sliding bracket, and a side support seat is fixedly provided on the sliding bracket. The side tightening cylinder is fixedly connected to the side support seat, and the left end of the piston rod of the side tightening cylinder forms a free extrusion end. A bottom left tightening mechanism is provided at the lower end of the left column, and a piston rod through hole is provided at the lower end of the left column. The bottom left tightening mechanism includes a bottom tightening cylinder, a cylinder support seat, and a bottom The guide rail support and the tightening block, the left side of the left column is provided with a cylinder support seat, the right side of the left column is provided with a bottom guide rail support, the cylinder support seat and the bottom guide rail support are respectively fixedly connected to the welding platform, the bottom tightening cylinder is placed on the cylinder support seat and fixedly connected to the cylinder support seat, the piston rod of the bottom tightening cylinder passes through the piston rod through-hole of the left column and is fixedly connected to the tightening block, the lower end of the tightening block is placed on the bottom guide rail support, the bottom guide rail support is provided with a guide rail, the tightening block is slidably connected to the bottom guide rail support, the upper end of the left column is provided with a top left pressing mechanism, the top left lower The pressure mechanism includes a slewing bearing, a fixed sleeve, a sliding sleeve, a sliding support and a left top downward pressure cylinder. The upper end of the left column is provided with a fixed sleeve, and the lower end of the fixed sleeve is connected to the left column through a slewing bearing. A sliding sleeve is transversely provided in the fixed sleeve, and the sliding sleeve is slidably connected to the fixed sleeve. A sliding support is transversely provided in the sliding sleeve, and the sliding support is slidably connected to the sliding sleeve. A left top downward pressure cylinder is provided on one side of the sliding support, and the cylinder seat of the left top downward pressure cylinder is fixedly connected to the sliding support. The piston rod of the left top downward pressure cylinder forms a free downward pressure end downward.
2. The adjustable positioning clamping device according to claim 1, characterized in that: The lower ends of the left top downward pressure cylinder and the right top downward pressure cylinder are respectively provided with downward pressure guide mechanisms, and the downward pressure guide mechanisms include a hydraulic support plate, a downward pressure guide block, a sliding bearing and a downward pressure clamping shaft. Hydraulic support plates and downward pressure guide blocks are fixedly provided at intervals on one side of the sliding support, and hydraulic support plates and downward pressure guide blocks are fixedly provided at intervals on one side of the right cylinder mounting seat. The right top downward pressure cylinder or the left top downward pressure cylinder is fixedly connected to the hydraulic support plate, the upper end of the downward pressure clamping shaft passes through the downward pressure guide block and is fixedly connected to the lower end of the piston rod of the right top downward pressure cylinder or the left top downward pressure cylinder, the downward pressure clamping shaft is connected to the downward pressure guide block via a sliding bearing, and the lower end of the downward pressure clamping shaft forms a free downward pressure end.
3. An adjustable positioning clamping device according to claim 1 or 2, characterized in that: The sliding bracket is provided with a left-side guide mechanism, and the left-side guide mechanism includes a side guide block, a sliding bearing and a side clamping shaft. A side guide block is provided on the right side of the side support seat, and the side guide block is fixedly connected to the sliding bracket. A sliding bearing is provided in the middle of the side guide block. One end of the side clamping shaft is fixedly connected to the piston rod of the side clamping cylinder, and the other end passes through the side guide block and is placed on the right side of the column. The side clamping shaft is slidably connected to the side guide block via the sliding bearing.
4. The adjustable positioning clamping device according to claim 3, characterized in that: The fixed sleeve and the sliding sleeve are respectively provided with locking mechanisms, and the locking mechanisms include a knob, a screw and a baffle. A knob is provided on the outer side of the fixed sleeve, and a baffle is provided between the inner wall of the fixed sleeve and the outer wall of the sliding sleeve. A knob is provided on the outer side of one end of the sliding sleeve, and a baffle is provided between the inner wall of the sliding sleeve and the outer wall of the sliding support. One end of the screw is fixedly connected to the knob, and the other end passes through the fixed sleeve or the sliding sleeve and is fixedly connected to the baffle. The screw is threadedly connected to the fixed sleeve or the sliding sleeve.
5. An adjustable positioning clamping device according to claim 1, 2 or 4, characterized in that: The left and right outer walls of the sliding sleeve are respectively provided with limit blocks, and the left and right outer walls of the sliding support are respectively provided with limit blocks, and the limit blocks are fixedly connected to the sliding sleeve or the sliding support.
6. The adjustable positioning clamping device according to claim 5, characterized in that: A handle is provided on one side of the outer wall of the sliding sleeve and one side of the outer wall of the sliding support respectively, and the handle is fixedly connected to the sliding sleeve or the sliding support.