Finned tube laser welding processing fixture

Abstract

The utility model discloses a finned tube laser welding processing clamp, including support subassembly and base, the support subassembly includes having first support plate and second support plate, and the first support plate and second support plate all rotationally connected with the bearing cylinder, and the bearing cylinder all is equipped with the clamping component, and the bottom of first support plate and second support plate all are fixedly connected with two ground wheels, the clamping component includes having support shell, and support shell penetrates and is fixedly inserted on the bearing cylinder, and the top and bottom of support shell are penetrated and are rotatively connected with two -way screw rod, and the both ends of two -way screw rod all are threadedly connected with the sliding block, and one side fixedly connected with the connecting block of sliding block, and the connecting block is fixedly inserted with two connecting rods. The utility model discloses through the knob is driven two -way screw rod rotation, to make two sliding blocks gather to the middle, and then drive the clamping block to move and contact with finned tube, so that the both ends of finned tube are clamped tightly, and the stability of finned tube clamping is improved.

Description

Technical Field

[0001] This utility model relates to the field of finned tube clamping technology, and in particular to a finned tube laser welding processing clamping fixture. Background Technology

[0002] Finned tubes are a type of high-efficiency heat transfer element. Their heat transfer area is several to tens of times that of bare tubes. They can enhance heat transfer, reduce flow resistance, and reduce metal consumption, thereby improving the economy and operational reliability of heat exchange equipment. During processing, finned tubes need to be clamped and fixed on a fixture, and then welded using laser equipment.

[0003] Among them, a search revealed that Chinese patent CN222221437U discloses a solid-state spinning spiral finned tube laser welding forming equipment. In the application of the above patent's technical solution, the finned tubes to be welded are not easy to clamp and fix, and the welding of the finned tubes is also inconvenient. Therefore, in order to better realize the finned tube clamping function, promote the technological progress of the industry, and improve the core technology competitiveness, this application proposes a new implementation scheme that is different from the processing fixture clamping structure in the prior art. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing finned tubes are not easy to clamp and fix, and to propose a laser welding processing fixture for finned tubes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A laser welding fixture for finned tubes includes a support assembly and a base. The support assembly includes a first support plate and a second support plate. A bearing cylinder is rotatably connected to both the first and second support plates. A clamping assembly is provided on each bearing cylinder. Two ground wheels are fixedly connected to the bottom of both the first and second support plates. The clamping assembly includes a support shell, which is inserted through and fixedly inserted into the bearing cylinder. A bidirectional threaded rod is rotatably connected through the top and bottom of the support shell. Both ends of the bidirectional threaded rod are threadedly connected to sliders. A connecting block is fixedly connected to one side of the slider. Two connecting rods are fixedly inserted into the connecting block. One end of the two connecting rods enters the bearing cylinder and is fixedly connected to the same clamping block.

[0006] Furthermore, limit blocks are fixedly connected between the inner circumferential walls of the bearing cylinder.

[0007] Furthermore, a motor base is fixedly connected to one side of the second support plate, and a first motor is fixedly connected to the top of the motor base. A transmission gear is fixedly connected to the output end of the first motor and one end of one of the bearing cylinders.

[0008] Furthermore, an anti-slip pad is fixedly connected to one side of the clamping block.

[0009] Furthermore, both the top and bottom ends of the bidirectional threaded rod are fixedly connected with knobs, and both the top and bottom ends of the bidirectional threaded rod are threaded with locking nuts.

[0010] Furthermore, a guide shell is fixedly connected to one side of the first support plate, and a side block is fixedly connected to one side of the second support plate, with one end of the side block slidably inserted into one end of the guide shell.

[0011] Furthermore, a second motor is fixedly connected to one side of the first support plate, and a first lead screw is fixedly connected to the output end of the second motor. The first lead screw is threadedly connected to one end of the side block.

[0012] Furthermore, the bottom end of the first support plate slides on the top of the base, a third motor is fixedly connected to the outer wall of one end of the base, a second lead screw is fixedly connected to the output end of the third motor, the first support plate is threadedly connected to the second lead screw, and both ends of the second lead screw and both ends of the base are rotatably installed through embedded bearings.

[0013] The beneficial effects of this utility model are as follows: 1. By turning the knob, the bidirectional threaded rod is rotated, causing the two sliders to converge towards the center, which in turn causes the clamping block to move and contact the finned tube, thus clamping both ends of the finned tube and improving the stability of the finned tube clamping.

[0014] 2. Driven by the second motor, the first lead screw rotates, causing the second support plate to move towards the first support plate, thereby connecting one end of the finned tube to one end of the bearing cylinder of the second support plate. Then, driven by the third motor, the second lead screw rotates, causing the other end of the finned tube to connect to one end of the bearing cylinder of the first support plate, so as to clamp finned tubes of different lengths and improve the applicability of the fixture.

[0015] 3. Driven by the first motor and the meshing of two transmission gears, the bearing cylinder is rotated, thereby enabling the finned tube to be rotated and welded, thus improving the welding quality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a laser welding fixture for finned tubes proposed in this utility model. Figure 2 This is a cross-sectional view of the clamping assembly of a laser welding fixture for finned tubes proposed in this utility model. Figure 3 This is a partial cross-sectional front view of a laser welding fixture for finned tubes proposed in this utility model. Figure 4 This is a three-dimensional structural diagram of the finned tube clamping state of a laser welding fixture for finned tubes proposed in this utility model.

[0017] In the diagram: 1. Support assembly; 101. First support plate; 102. Second support plate; 103. Bearing cylinder; 104. Limiting block; 105. Ground wheel; 106. Motor base; 107. First motor; 108. Transmission gear; 2. Clamping assembly; 201. Support shell; 202. Bidirectional threaded rod; 203. Slider; 204. Connecting block; 205. Connecting rod; 206. Clamping block; 207. Anti-slip pad; 208. Knob; 3. Guide shell; 4. Side block; 5. First lead screw; 6. Second motor; 7. Base; 8. Second lead screw; 9. Third motor. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figures 1-4 A laser welding fixture for finned tubes includes a support assembly 1, a base 7, a control panel, and a processor. The support assembly 1 includes a first support plate 101 and a second support plate 102. The bottom of both the first support plate 101 and the second support plate 102 are fixed with two ground wheels 105 with braking function by bolts. A bearing cylinder 103 is rotatably mounted on the first support plate 101 and the second support plate 102 via an interlocking bearing, and a clamping assembly 2 is provided on the bearing cylinder 103. The clamping assembly 2 includes a support shell 201, which is fixedly inserted into the bearing cylinder 103. A bidirectional threaded rod 202 is rotatably mounted between the top and bottom of the support shell 201 through an interlocking bearing. The thread of the bidirectional threaded rod 202 is a trapezoidal thread. A knob 208 is welded to both the top and bottom of the bidirectional threaded rod 202. Both ends of the bidirectional threaded rod 202 are threadedly connected to a slider 203. A connecting block 204 is fixed to one side of the slider 203 by bolts. Two connecting rods 205 are fixedly inserted into the connecting block 204. One end of the two connecting rods 205 enters the bearing cylinder 103 and is fixed to the same clamping block 206 by bolts. Turning the knob 208 causes the bidirectional threaded rod 202 to rotate, which causes the two sliders 203 to converge towards the middle, thereby moving the connecting block 204 and the connecting rod 205, which in turn moves the clamping block 206 to contact the finned tube, thus clamping both ends of the finned tube.

[0020] Limiting blocks 104 are welded between the inner circumference of the bearing cylinder 103 to limit the insertion of the finned tube into the bearing cylinder 103.

[0021] A motor base 106 is fixed to one side of the second support plate 102 by bolts. A first motor 107 is fixed to the top of the motor base 106 by bolts. The output end of the first motor 107 and one end of one of the bearing cylinders 103 are both keyed to a transmission gear 108. Under the drive of the first motor 107 and the meshing action of the two transmission gears 108, the bearing cylinder 103 is driven to rotate, thereby rotating and welding the finned tube.

[0022] An anti-slip pad 207 is attached to one side of the clamping block 206. The anti-slip pad 207 is made of nitrile rubber with a high coefficient of friction. It can not only increase the friction with the finned tube and prevent the finned tube from sliding during welding, but also avoid damage caused by the metal clamping block 206 directly pressing the surface of the finned tube.

[0023] The top and bottom ends of the bidirectional threaded rod 202 are both threaded with locking nuts. Tighten the locking nuts so that they abut against the top and bottom ends of the support shell 201.

[0024] A guide shell 3 is welded to one side of the first support plate 101, and a side block 4 is welded to one side of the second support plate 102. One end of the side block 4 is slidably inserted into one end of the guide shell 3. A second motor 6 is fixed to one side of the first support plate 101 by bolts. The output end of the second motor 6 is keyed to a first lead screw 5, and the first lead screw 5 is threadedly connected to one end of the side block 4. Driven by the second motor 6, the first lead screw 5 rotates, causing the side block 4 to move along the guide shell 3, which in turn causes the ground wheel 105 to roll, thus driving the second support plate 102 to move towards the first support plate 101, so that one end of the finned tube is inserted into one end of the bearing cylinder 103 of the second support plate 102.

[0025] The bottom end of the first support plate 101 slides on the top of the base 7. The outer wall of one end of the base 7 is fixed with a third motor 9 by bolts. The output end of the third motor 9 is keyed to a second lead screw 8. The first support plate 101 is threadedly connected to the second lead screw 8. The first lead screw 5 and the second lead screw 8 can be selected as triangular threaded rods or trapezoidal threaded rods with self-locking capability. Both ends of the second lead screw 8 and both ends of the base 7 are rotatably mounted through embedded bearings. Driven by the third motor 9, the second lead screw 8 rotates, thereby driving the first support plate 101 to move towards the second support plate 102, so that the other end of the finned tube is inserted into one end of the bearing cylinder 103 of the first support plate 101.

[0026] The first motor 107, the second motor 6, and the third motor 9 all use HSS-60 geared motors with self-locking function.

[0027] The processor is connected to the first motor 107, the second motor 6, and the third motor 9 via wires, and is also connected to the control panel via wires. The processor model is ARM9TDMI. The working principle of this embodiment is as follows: When in use, firstly, the finned tube is placed between two support cylinders 103. Then, the second motor 6 is started. Under the drive of the second motor 6, the first lead screw 5 rotates, thereby causing the side block 4 to move along the guide shell 3, which in turn causes the ground wheel 105 to roll, thus driving the second support plate 102 to move towards the first support plate 101, so that one end of the finned tube is inserted into one end of the support cylinder 103 of the second support plate 102. Next, the third motor 9 is started. Driven by the third motor 9, the second lead screw 8 rotates, thereby driving the first support plate 101 to move towards the second support plate 102, so that the other end of the finned tube is inserted into one end of the bearing cylinder 103 of the first support plate 101. Then, turn the knob 208 to drive the bidirectional threaded rod 202 to rotate, thereby causing the two sliders 203 to converge towards the middle, which in turn drives the connecting block 204 and the connecting rod 205 to move, thereby driving the clamping block 206 to move and contact the finned tube, thereby clamping both ends of the finned tube, and then tightening the locking nut to make it press against the top and bottom of the support shell 201. The finned tubes are then welded using external welding equipment. During the welding process, the first motor 107 is started. Driven by the first motor 107 and the meshing of the two transmission gears 108, the bearing cylinder 103 is rotated, thereby rotating and welding the finned tubes.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A laser welding fixture for finned tubes, comprising a support assembly (1) and a base (7), characterized in that, The support assembly (1) includes a first support plate (101) and a second support plate (102). A bearing cylinder (103) is rotatably connected to both the first support plate (101) and the second support plate (102). A clamping assembly (2) is provided on both the bearing cylinder (103). Two ground wheels (105) are fixedly connected to the bottom of both the first support plate (101) and the second support plate (102). The clamping assembly (2) includes a support shell (201). The support shell (201) is inserted through and fixedly inserted into the bearing cylinder (103). A bidirectional threaded rod (202) is rotatably connected between the top and bottom of the support shell (201). A slider (203) is threadedly connected to both ends of the bidirectional threaded rod (202). A connecting block (204) is fixedly connected to one side of the slider (203). Two connecting rods (205) are fixedly inserted into the connecting block (204). One end of the two connecting rods (205) enters the bearing cylinder (103) and is fixedly connected to the same clamping block (206).

2. The laser welding fixture for finned tubes according to claim 1, characterized in that, Limiting blocks (104) are fixedly connected between the inner circumferential walls of the bearing cylinder (103).

3. The laser welding fixture for finned tubes according to claim 1, characterized in that, A motor base (106) is fixedly connected to one side of the second support plate (102), and a first motor (107) is fixedly connected to the top of the motor base (106). A transmission gear (108) is fixedly connected to the output end of the first motor (107) and one end of one of the bearing cylinders (103).

4. The laser welding fixture for finned tubes according to claim 1, characterized in that, An anti-slip pad (207) is fixedly connected to one side of the clamp (206).

5. A laser welding fixture for finned tubes according to claim 1, characterized in that, The top and bottom ends of the bidirectional threaded rod (202) are both fixedly connected with knobs (208), and the top and bottom ends of the bidirectional threaded rod (202) are both threadedly connected with locking nuts.

6. A laser welding fixture for finned tubes according to claim 1, characterized in that, A guide shell (3) is fixedly connected to one side of the first support plate (101), and a side block (4) is fixedly connected to one side of the second support plate (102). One end of the side block (4) is slidably inserted into one end of the guide shell (3).

7. A laser welding fixture for finned tubes according to claim 1, characterized in that, A second motor (6) is fixedly connected to one side of the first support plate (101), and a first lead screw (5) is fixedly connected to the output end of the second motor (6). The first lead screw (5) is threadedly connected to one end of the side block (4).

8. A laser welding fixture for finned tubes according to claim 1, characterized in that, The bottom end of the first support plate (101) slides on the top of the base (7). A third motor (9) is fixedly connected to the outer wall of one end of the base (7). A second lead screw (8) is fixedly connected to the output end of the third motor (9). The first support plate (101) is threadedly connected to the second lead screw (8). Both ends of the second lead screw (8) and both ends of the base (7) are rotatably installed through embedded bearings.

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