Frame welding positioner

Abstract

The utility model relates to a frame welding positioner. The frame welding positioner comprises a welding base; the moving device is arranged at one end of the welding base; the movable displacement device is arranged on the moving device; the fixed displacement device is arranged at the other end of the welding base and is opposite to the movable displacement device; the clamping devices are arranged on the movable displacement device and the fixed displacement device, are symmetrically arranged and are used for clamping the frame; the moving device is used for adjusting the distance between the movable displacement device and the fixed displacement device, and the movable displacement device and the fixed displacement device are used for driving the frame to turn over through the clamping device. According to the positioner, the movable displacement device and the clamping device are driven by the moving device to be inserted into the two ends of the frame, the frame is completely fixed through the clamping device, then the frame is driven by the movable displacement device and the fixed displacement device to rotate and weld, the clamping time of the frame is greatly shortened, welding is more convenient, and the welding efficiency is improved. Overall welding can be completed through one-time clamping, repeated clamping is not needed, and the welding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a frame welding device, and more particularly to a frame welding positioner. Background Technology

[0002] like Figure 10 As shown, the frame is made by bending sheet metal and then welding it. The dimensions of the frame are 2200×1300×600mm.

[0003] The existing frame welding is carried out on a welding platform. During welding, the frame is first assembled using clamps, then the four corners are spot-welded to connect the parts. Then, using one end (2200×1300) as a reference, it is pressed onto the welding platform, with clamps ensuring the verticality of the columns before welding. After all the surfaces except the one pressed onto the welding platform are welded, the clamps are released, the frame is turned around, and the other end is welded. If the frame is significantly deformed, it needs to be secured before welding. The entire welding process is time-consuming, requires numerous clamps, and sometimes necessitates the use of a crane for turning. The time spent assembling and disassembling clamps is also considerable. In short, the auxiliary work time for welding far exceeds the welding time, resulting in low overall welding efficiency and high welding costs. Utility Model Content

[0004] To solve the above problems, this utility model provides a frame welding positioner, the specific technical solution of which is as follows:

[0005] A frame welding positioner includes: a welding base; a moving device disposed at one end of the welding base; a movable positioner disposed on the moving device; a fixed positioner disposed at the other end of the welding base and opposite to the movable positioner; and a clamping device disposed on the movable positioner and the fixed positioner and symmetrically arranged for clamping the frame; wherein the moving device is used to adjust the distance between the movable positioner and the fixed positioner, and the movable positioner and the fixed positioner are used to drive the frame to rotate via the clamping device.

[0006] Preferably, the moving device includes: a movable base slidably disposed on the welding base and connected to the movable displacement device; and a moving drive device connected to the welding base and the movable base respectively, for driving the movable base to move.

[0007] Furthermore, the moving drive device includes a gear drive assembly or a lead screw drive assembly.

[0008] The gear drive assembly includes: a bearing housing disposed on the movable base; a movable handwheel disposed on the bearing housing; a drive gear disposed on the movable handwheel; and a drive rack disposed on the welded base and meshing with the drive gear.

[0009] Furthermore, it also includes: a rack baffle, disposed on the welding base and located above the drive rack, for protecting the teeth of the drive rack.

[0010] Preferably, the movable displacement device has the same structure as the fixed displacement device. The movable displacement device includes: a displacement base; a slewing bearing disposed on the displacement base and connected to the clamping device; a displacement motor disposed on the displacement base; and a displacement gear disposed on the displacement motor and meshing with the gear ring of the slewing bearing.

[0011] Preferably, the clamping device includes: a clamping base disposed on the movable displacement device and the fixed displacement device; an end clamping assembly symmetrically disposed at both ends of the clamping base for clamping both sides of the frame; and an end pressing assembly disposed on the end clamping assembly for pressing both ends of the frame.

[0012] Furthermore, the end clamping assembly includes: a clamping slide plate slidably disposed on the clamping base; clamping arms symmetrically disposed at both ends of the clamping slide plate; a clamping roller rotatably disposed at the end of the clamping arm; and a clamping drive unit disposed on the clamping base and connected to the clamping slide plate for driving the clamping slide plate and the clamping arm to move.

[0013] Furthermore, the end clamping assembly includes: a clamping cylinder disposed on the clamping slide plate and located between the two clamping arms; a clamping arm disposed on the clamping cylinder; and a clamping rod threaded onto the clamping arm for clamping the end of the frame.

[0014] Furthermore, the clamping device also includes a locking assembly, which includes: a locking connecting seat disposed on the clamping base; a locking positioning seat disposed on the locking connecting seat and having a locking hole; and a ball-head locking pin movably disposed on the positioning hole of the clamping slide plate and opposite to the locking hole, for inserting into the positioning hole and the locking hole to lock the position of the clamping slide plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The frame welding positioner provided by this utility model uses a moving device to drive a movable positioner and a clamping device to be inserted into both ends of the frame. The clamping device completely fixes the frame, and then the movable and fixed positioners drive the frame to rotate for welding. This greatly reduces the frame clamping time, makes welding more convenient, and allows the entire welding to be completed in one clamping, eliminating the need for multiple clampings and improving welding efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this application;

[0018] Figure 2 This is a front view of this application;

[0019] Figure 3 This is a top view of this application;

[0020] Figure 4 This is an assembly diagram of the welding base and the moving device;

[0021] Figure 5 It is a cross-sectional view of the mobile device;

[0022] Figure 6 This is a schematic diagram of the movable displacement device;

[0023] Figure 7 This is a schematic diagram of the clamping device clamping the frame;

[0024] Figure 8 This is a schematic diagram of the clamping device;

[0025] Figure 9 This is a front view of the clamping device;

[0026] Figure 10 This is a structural diagram of the framework. Detailed Implementation

[0027] The present invention will now be further described with reference to the accompanying drawings.

[0028] like Figures 1 to 10 As shown, a frame welding positioner includes a welding base 1, a moving device 2, a clamping device 3, a movable positioner 5, and a fixed positioner 4. The welding base 1 is fixed on the ground. The moving device 2 is installed at one end of the welding base 1 and connected to the movable positioner 5. The fixed positioner 4 is fixed at the other end of the welding base 1 and is arranged opposite to the movable positioner 5. The clamping device 3 is installed on the movable positioner 5 and the fixed positioner 4 and is symmetrically arranged to clamp the frame. The moving device 2 is used to adjust the distance between the movable positioner 5 and the fixed positioner 4. The movable positioner 5 and the fixed positioner 4 are used to drive the frame to rotate through the clamping device 3.

[0029] The assembled frame is loaded onto the positioner and clamped by the clamping device 3. Then, the movable positioner 5 and the fixed positioner 4 drive the frame to rotate, which facilitates welding.

[0030] The crane first inserts one end of the assembled frame into the clamping device 3 of the fixed positioning device 4. Then, the moving device 2 drives the movable positioning device 5 and the clamping device 3 to move to the other end of the frame until the clamping device 3 on the movable positioning device 5 is inserted into the other end of the frame. The two clamping devices 3 are then activated, clamping the frame from both ends. Then, the movable positioning device 5 and the fixed positioning device 4 rotate synchronously, driving the frame to rotate. No secondary clamping is required during the entire welding process, which greatly reduces clamping time and improves welding efficiency.

[0031] like Figure 4 and Figure 5 As shown, the moving device 2 includes a moving base 21 and a moving drive device. The moving base 21 is slidably mounted on the moving base 21 via a linear guide pair, and the movable displacement device 5 is fixed on the moving base 21. The moving drive device is connected to both the moving base 21 and the welding base 1, and is used to drive the moving base 21 to move. The moving drive device includes a gear drive assembly or a lead screw drive assembly. Specifically, the gear drive assembly includes a bearing seat 22, a moving handwheel 23, a drive gear 24, and a drive rack 25. The bearing seat 22 is fixed to one end of the moving base 21 and connected to the moving handwheel 23. The bottom of the moving handwheel 23 is fixedly connected to the drive gear 24, and the drive gear 24 is located below the moving base 21. The drive rack 25 is fixed to the welding base 1 and is arranged along the length of the welding base 1. The drive rack 25 meshes with the drive gear 24. When the moving handwheel 23 is rotated, the drive gear 24 moves on the drive rack 25, thereby driving the moving base 21 to move. The use of a movable handwheel 23 and a rack and gear mechanism makes the overall structure simpler, more reliable, and easier to maintain and use. To prevent welding slag from entering between the drive rack 25 and the drive gear 24, and to protect the drive gear 24 and the drive rack 25, a rack baffle 26 is also included. The rack baffle 26 is fixed on the welding base 1 in a Z-shape, and is located above the drive rack 25, covering the meshing area between the drive gear 24 and the drive rack 25, so that welding slag and debris will not enter the working area of ​​the rack.

[0032] like Figure 6As shown, the movable positioning device 5 has the same structure as the fixed positioning device 4. The movable positioning device 5 includes a positioning base 51, a slewing bearing 52, a positioning motor 54, and a positioning gear 53. The slewing bearing 52 is installed on one side of the positioning base 51. The positioning motor 54 is fixed inside the positioning base 51 and connected to the positioning gear 53. The positioning gear 53 meshes with the gear ring 521 of the slewing bearing 52. The positioning motor 54 drives the gear ring 521 of the slewing bearing 52 to rotate through the positioning gear 53. The gear ring 521 of the slewing bearing 52 is connected to the clamping device 3, driving the clamping device 3 to rotate. The height of the positioning base 51 of the movable positioning device 5 is less than the height of the positioning base 51 of the fixed positioning device 4, and other structures are the same.

[0033] like Figures 7 to 9As shown, the clamping device 3 includes a clamping base 330, an end clamping assembly 31, and an end pressing assembly 33. The clamping base 330 is mounted on the gear ring 521 of the slewing bearing 52. The end clamping assembly 31 is symmetrically fixed at both ends of the clamping base 330 for clamping both sides of the frame. The end pressing assembly 33 is mounted in the middle of the end clamping assembly 31 for pressing both ends of the frame. Specifically, the end clamping assembly 31 includes a clamping slide plate 311, clamping arms 312, clamping rollers 313, and a clamping drive unit. The clamping slide plate 311 is slidably mounted on the clamping base 330 via a linear guide pair and moves along the length of the clamping base 330. The clamping arms 312 are symmetrically arranged at both ends of the clamping slide plate 311. The clamping arms 312 are L-shaped and made of sheet metal to reduce weight. One end of the clamping arm 312 is fixed to the clamping slide plate 311, and the other end is connected to the clamping rollers 313. The clamping rollers 313 can rotate to facilitate the insertion of the frame. The two clamping rollers 313 are symmetrically arranged, and the width between the two clamping rollers 313 is the same as that of the frame, enabling the fixation of the four sides of the frame. The clamping drive unit is mounted on the clamping base 330 and connected to the clamping slide plate 311, and is used to drive the movement of the clamping slide plate 311 and the clamping arms 312. The clamping drive unit includes a clamping screw 316, a clamping nut, and a clamping handwheel 315. The clamping screw 316 is rotatably mounted on the clamping base 330 via a screw seat and is arranged parallel to the linear guide pair. The clamping nut is mounted on the clamping screw 316 and connected to the clamping slide plate 311. The clamping handwheel 315 is fixed to the end of the clamping screw 316 and located at the end of the clamping base 330. The clamping handwheel 315 drives the clamping screw 316 to rotate, and the clamping screw 316 drives the clamping slide plate 311 to move via the clamping nut, thereby inserting the clamping rollers 313 onto the two opposite vertical surfaces of the frame from both sides. The clamping rollers 313 and the clamping arms 312 fix the four vertical surfaces of the frame. The end clamping assembly 33 includes a clamping cylinder 331, a clamping arm 332, and a clamping rod 333. The clamping cylinder 331 is a hydraulic or pneumatic cylinder, fixed to the clamping slide plate 311 and located in the middle of the plate. One end of the clamping arm 332 is fixed to the piston rod of the clamping cylinder 331, and the other end is threadedly connected to the clamping rod 333. The clamping rod 333 has an adjustable extension length and is positioned opposite the frame to clamp it against the frame. The clamping rod 333 clamps the frame from both ends. The clamping rod 333 also ensures a larger gap between the end of the frame and the clamping slide plate 311 and clamping base 330, facilitating welding of the frame ends. The clamping device 3 achieves complete fixation of the frame while simultaneously ensuring its verticality.

[0034] To prevent the welding slide plate from shifting during welding, the clamping device 3 also includes a locking assembly. This locking assembly includes a locking connecting seat 323, a locking positioning seat 322, and a ball-head locking pin 321. The locking connecting seat 323 is fixed to the welding clamping base 330 and is arranged along its length. The locking connecting seat 323 has a locking positioning groove. The locking positioning seat 322 is fixed within the locking positioning groove by screws, and the top of the locking positioning seat 322 has a locking hole 3221. The locking positioning seat 322 can be adjusted in position according to the width of the frame. The ball-head locking pin 321 is movably disposed on the positioning hole 3111 of the clamping slide plate 311 and is opposite to the locking hole 3221. It is used to insert into the positioning hole 3111 and the locking hole 3221 to lock the position of the clamping slide plate 311. When the clamping slide plate 311 drives the clamping arm 312 to press against both sides of the frame, the positioning hole 3111 communicates with the locking hole, and the ball head locking pin 321 is inserted into the positioning hole 3111 and the locking hole 3221, so that the position of the clamping slide plate 311 will not change, thus improving the safety and reliability of welding.

[0035] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. A frame welding positioner, characterized in that, include: Welding base (1); The moving device (2) is located at one end of the welding base (1); An active displacement device (5) is provided on the moving device (2); A fixed displacement device (4) is located at the other end of the welding base (1) and is positioned opposite to the movable displacement device (5); as well as The clamping device (3) is provided on the movable displacement device (5) and the fixed displacement device (4) and is symmetrically arranged to clamp the frame; The moving device (2) is used to adjust the distance between the movable displacement device (5) and the fixed displacement device (4), and the movable displacement device (5) and the fixed displacement device (4) are used to drive the frame to flip through the clamping device (3).

2. The frame welding positioner according to claim 1, characterized in that, The mobile device (2) includes: A movable base (21) is slidably disposed on the welding base (1) and connected to the movable displacement device (5); and A mobile drive device is connected to the welding base (1) and the mobile base (21) respectively, and is used to drive the mobile base (21) to move.

3. A frame welding positioner according to claim 2, characterized in that, The moving drive device includes: a gear drive assembly or a lead screw drive assembly.

4. A frame welding positioner according to claim 3, characterized in that, The gear drive assembly includes: A bearing housing (22) is provided on the movable base (21); A movable handwheel (23) is mounted on the bearing seat (22); A drive gear (24) is disposed on the movable handwheel (23); and A drive rack (25) is disposed on the welding base (1) and meshes with the drive gear (24).

5. A frame welding positioner according to claim 4, characterized in that, Also includes: A rack baffle (26) is provided on the welding base (1) and located above the drive rack (25) to protect the teeth of the drive rack (25).

6. A frame welding positioner according to claim 1, characterized in that, The movable displacement device (5) has the same structure as the fixed displacement device (4), and the movable displacement device (5) includes: Displacement base (51); A slewing bearing (52) is mounted on the displacement base (51) and connected to the clamping device (3); A displacement motor (54) is mounted on the displacement base (51); and A shift gear (53) is mounted on the shift motor (54) and meshes with the gear ring (521) of the slewing bearing (52).

7. A frame welding positioner according to claim 1, characterized in that, The clamping device (3) includes: A clamping base (330) is provided on the movable displacement device (5) and the fixed displacement device (4); End clamping assemblies (31) are symmetrically arranged at both ends of the clamping base (330) for clamping both sides of the frame; and An end clamping assembly (33) is provided on the end clamping assembly (31) for clamping both ends of the frame.

8. A frame welding positioner according to claim 7, characterized in that, The end clamping assembly (31) includes: The clamping slide plate (311) is slidably disposed on the clamping base (330); Clamping arms (312) are symmetrically arranged at both ends of the clamping slide plate (311); The clamping roller (313) is rotatably disposed at the end of the clamping arm (312); and A clamping drive unit is disposed on the clamping base (330) and connected to the clamping slide plate (311) for driving the clamping slide plate (311) and the clamping arm (312) to move.

9. A frame welding positioner according to claim 8, characterized in that, The end clamping assembly (33) includes: A clamping cylinder (331) is disposed on the clamping slide plate (311) and located between the two clamping arms (312); A clamping arm (332) is mounted on the clamping cylinder (331); and A clamping rod (333) is threaded onto the clamping arm (332) and is used to clamp the end of the frame.

10. A frame welding positioner according to claim 8, characterized in that, The clamping device (3) further includes a locking component, the locking component comprising: A locking connector (323) is provided on the clamping base (330); A locking positioning seat (322) is disposed on the locking connecting seat (323) and is provided with a locking hole (3221); and A ball-head locking pin (321) is movably disposed on the positioning hole (3111) of the clamping slide plate (311) and is disposed opposite to the locking hole (3221). It is used to insert into the positioning hole (3111) and the locking hole (3221) to lock the position of the clamping slide plate (311).

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