Multi-size plate welding deformation preventing clamp based on restraint welding method

Abstract

The utility model relates to the field of welding clamps, in particular to a multi-size plate welding deformation preventing clamp based on a restraint welding method, which comprises a support base, a mounting frame body, a sliding clamping piece, a sliding abutting piece, a clamping piece sliding groove and an abutting piece sliding groove, the clamping piece sliding grooves are formed in the two opposite side walls of the installation frame body, the abutting piece sliding grooves are formed in the other two opposite side walls of the installation frame body, the sliding clamping pieces are movably connected into the clamping piece sliding grooves, and the sliding abutting pieces are slidably connected into the abutting piece sliding grooves. The sliding abutting pieces slide above the sliding clamping pieces, and at least two sets of sliding abutting pieces are arranged in the abutting piece sliding groove in parallel. And by arranging the sliding abutting piece and the sliding piece, the workpiece is restrained through a restraining method, and thermal deformation of the workpiece due to heat generated by welding can be prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of welding fixture, specifically to a multi -size plate prevents welding deformation clamp based on restraint welding method. BACKGROUND

[0002] In the test plate welding process, the deformation caused by the asymmetric distribution of welding stress is difficult to control in the welding process. At present, there are two common process methods: one is the pre-preparation of reverse deformation method, which has the disadvantage that the calculation of the pre-preparation of reverse deformation is difficult, especially for the reverse deformation pre-preparation of the medium plate; the second is the restraint welding method, which is an effective method to reduce the welding deformation. When used for welding structure with asymmetric distribution of weld, the welded member is fixed as much as possible by using a clamp or a rigid jig, which can effectively control the angular deformation and bending deformation of the welded member. The test plate must meet the mechanical sampling standard after welding, and cannot be deformed, welded and not penetrated. However, V-shaped groove, Y-shaped groove and asymmetric X-shaped groove are often used in the test plate welding process. Due to the difficulty in controlling the reverse deformation during welding, deformation and welding often occur after welding, resulting in waste of raw materials, energy and labor resources, and slow heat dissipation of the workpiece directly contacting the workbench, which greatly affects the work efficiency. In addition, the welding is easy to appear the phenomenon of welding and workbench adhesion, which affects the performance of the welding plate.

[0003] The utility model patent with publication number CN 209256167 U provides a clamp for preventing welding deformation, which comprises a support, a pressing plate, a fixing bolt and an adjusting bolt. The pressing plate is installed on the support. Two through holes are symmetrically arranged in the length direction of the support. An adjusting nut is arranged on the side of the through hole. The adjusting nut is internally screwed with the adjusting bolt.

[0004] However, the above-mentioned scheme has the following disadvantages: the device can only process one kind of workpiece. If other different size workpieces need to be processed, different clamps need to be repeatedly customized, which not only increases the processing cost, but also needs to wait for the clamp to produce, which undoubtedly reduces the processing efficiency, and the cleaning of the traditional clamp after use is relatively cumbersome.

[0005] Therefore, it is necessary to provide a welding deformation prevention clamp for different types of experimental welding plates to solve the above-mentioned problems. SUMMARY

[0006] In view of the problems in the prior art that the clamp cannot adapt to multiple workpieces, the processing cost is high, and the cleaning of welding slag is complex, the purpose of the utility model is to provide a welding deformation prevention clamp which can adapt to different size plates and is convenient to clean welding slag after welding.

[0007] The utility model discloses a kind of multi-size plate preventing welding deformation clamps based on restraint welding method, including support base, installation frame, sliding clamp, sliding resistance piece, clamp sliding slot, resistance piece sliding slot, the installation frame is fixedly arranged in the top of the support base, the clamp sliding slot is arranged on the two opposite side walls of the installation frame, the resistance piece sliding slot is arranged on the other two opposite side walls of the installation frame, the sliding clamp is movably connected in the clamp sliding slot, the sliding resistance piece is slidably connected in the resistance piece sliding slot, the sliding resistance piece is slid above the sliding clamp, the sliding resistance piece is arranged in parallel in the resistance piece sliding slot not less than two groups.

[0008] The multi-size plate preventing welding deformation clamp based on restraint welding method described above, the sliding clamp includes a first sliding rod, a first pressing piece, a center rod, the first pressing piece is provided with two, a sliding rod hole penetrating the first sliding rod is provided in the length direction of the first sliding rod, the center rod is sleeved in the sliding rod hole, opposite threads are provided at the both ends of the center rod, and a threaded hole matched with the thread on the center rod is provided on the first pressing piece.

[0009] The multi-size plate preventing welding deformation clamp based on restraint welding method described above, the first pressing piece uses a first E-shaped piece, clamp auxiliary sliding slots are provided on the upper and lower sides of the clamp sliding slot, the first E-shaped piece is slidably clamped in the clamp auxiliary sliding slot, a threaded hole penetrating the first E-shaped piece is provided at the middle of one of the first E-shaped pieces, a first handle is provided at one end of the center rod, and the center rod penetrates the threaded hole and the sliding rod hole in sequence and is screwed into the threaded hole of the first E-shaped piece provided on the opposite side.

[0010] The multi-size plate preventing welding deformation clamp based on restraint welding method described above, the sliding resistance piece includes a sliding clamp, a second pressing piece, a center sliding slot and a pressing component, the second pressing piece is provided with two, the sliding clamp is clamped in the resistance piece sliding slot, the second pressing piece is provided outside the resistance piece sliding slot, the second pressing piece is connected with the sliding clamp by penetrating the resistance piece sliding slot, the center sliding slot penetrates the sliding clamp along the length direction of the sliding clamp, and the pressing component is slidably arranged on the sliding clamp.

[0011] The press part of the multi-size plate preventing welding deformation clamp based on the restraint welding method comprises a sliding frame, a center clamping block and a lifting screw rod, the sliding frame is sleeved on the outside of the sliding clamping piece, the center clamping block is fixedly installed at the middle position of the sliding frame, the center clamping block is provided with a center threaded hole penetrating through the center clamping block, the center clamping block slides in the center sliding groove, the sliding frame is provided with a frame through hole corresponding to the center threaded hole, and the lifting screw rod penetrates through the frame through hole and the center threaded hole from top to bottom and protrudes out of the outside of the sliding frame.

[0012] The press part of the multi-size plate preventing welding deformation clamp based on the restraint welding method comprises a sliding frame, a center clamping block and a lifting screw rod, the sliding frame is sleeved on the outside of the sliding clamping piece, the center clamping block is fixedly installed at the middle position of the sliding frame, the center clamping block is provided with a center threaded hole penetrating through the center clamping block, the center clamping block slides in the center sliding groove, the sliding frame is provided with a frame through hole corresponding to the center threaded hole, and the lifting screw rod penetrates through the frame through hole and the center threaded hole from top to bottom and protrudes out of the outside of the sliding frame.

[0013] The press part of the multi-size plate preventing welding deformation clamp based on the restraint welding method comprises a sliding frame, a center clamping block and a lifting screw rod, the sliding frame is sleeved on the outside of the sliding clamping piece, the center clamping block is fixedly installed at the middle position of the sliding frame, the center clamping block is provided with a center threaded hole penetrating through the center clamping block, the center clamping block slides in the center sliding groove, the sliding frame is provided with a frame through hole corresponding to the center threaded hole, and the lifting screw rod penetrates through the frame through hole and the center threaded hole from top to bottom and protrudes out of the outside of the sliding frame.

[0014] The press part of the multi-size plate preventing welding deformation clamp based on the restraint welding method comprises a sliding frame, a center clamping block and a lifting screw rod, the sliding frame is sleeved on the outside of the sliding clamping piece, the center clamping block is fixedly installed at the middle position of the sliding frame, the center clamping block is provided with a center threaded hole penetrating through the center clamping block, the center clamping block slides in the center sliding groove, the sliding frame is provided with a frame through hole corresponding to the center threaded hole, and the lifting screw rod penetrates through the frame through hole and the center threaded hole from top to bottom and protrudes out of the outside of the sliding frame.

[0015] The press part of the multi-size plate preventing welding deformation clamp based on the restraint welding method comprises a sliding frame, a center clamping block and a lifting screw rod, the sliding frame is sleeved on the outside of the sliding clamping piece, the center clamping block is fixedly installed at the middle position of the sliding frame, the center clamping block is provided with a center threaded hole penetrating through the center clamping block, the center clamping block slides in the center sliding groove, the sliding frame is provided with a frame through hole corresponding to the center threaded hole, and the lifting screw rod penetrates through the frame through hole and the center threaded hole from top to bottom and protrudes out of the outside of the sliding frame.

[0016] The press part of the multi-size plate preventing welding deformation clamp based on the restraint welding method comprises a sliding frame, a center clamping block and a lifting screw rod, the sliding frame is sleeved on the outside of the sliding clamping piece, the center clamping block is fixedly installed at the middle position of the sliding frame, the center clamping block is provided with a center threaded hole penetrating through the center clamping block, the center clamping block slides in the center sliding groove, the sliding frame is provided with a frame through hole corresponding to the center threaded hole, and the lifting screw rod penetrates through the frame through hole and the center threaded hole from top to bottom and protrudes out of the outside of the sliding frame. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic view of the preventing welding deformation clamp.

[0018] Fig. 2 This is a structural diagram of the support base and mounting frame in this utility model.

[0019] Fig. 3 This is a schematic diagram of the sliding clamp in this utility model.

[0020] Fig. 4 This is a schematic diagram of the connection structure of the central rod, positive screw, and negative screw in this utility model.

[0021] Fig. 5 This is a schematic diagram of the sliding abutment in this utility model.

[0022] Fig. 6 This is a schematic diagram of the pressing component in this utility model.

[0023] Explanation of reference numerals in the attached drawings: Support base 1, Mounting frame 2, Clamping groove 21, Abutment groove 22, Auxiliary clamping groove 23, Abutment auxiliary groove 24, Cleaning groove 25, Sliding clamp 3, First slide rod 31, First E-type part 32, Center rod 33, Positive screw 34, Negative screw 35, First throttle 36, Sliding abutment 4, Sliding latch 41, Second E-type part 42, Center groove 43, Pressing component 5, Sliding frame 51, Center latch 52, Lifting screw 53, Second throttle 54, Rubber block 55. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Example 1

[0026] like Figs. 1-6 As shown, a multi-size plate anti-deformation fixture based on the restraint welding method includes a support base 1, a mounting frame 2, a sliding clamp 3, a sliding abutment 4, a clamp groove 21, and an abutment groove 22. The support base uses a flat plate structure at the bottom, and the plate to be welded is placed on top of the support base.

[0027] The installation frame body is fixedly arranged above the supporting base, the clamping pieces are arranged on two opposite side walls of the installation frame body, the resisting pieces are arranged on the other two opposite side walls of the installation frame body, the sliding clamping piece is movably connected in the clamping piece sliding groove, the sliding resisting piece is movably connected in the resisting piece sliding groove, and the sliding resisting piece slides above the sliding clamping piece.

[0028] Specifically, the sliding clamping piece comprises a first sliding rod 31, a first pressing piece, and a center rod 33, the first pressing piece is provided with two, a sliding rod hole penetrating through the first sliding rod is arranged in the length direction of the first sliding rod, the center rod is sleeved in the sliding rod hole, and reverse threads are arranged at two ends of the center rod.

[0029] The first pressing piece and the installation frame body can be placed with different thickness of the cushion block according to the edge inclination of the welding plate material, so that the inclination angle of the first sliding rod is adjusted.

[0030] The sliding resisting piece comprises a sliding clamping piece 41, a second pressing piece, a center sliding groove 43, and a pressing part 5, the second pressing piece is provided with two, the sliding clamping piece is clamped in the resisting piece sliding groove, the second pressing piece is arranged outside the resisting piece sliding groove, the second pressing piece is connected with the sliding clamping piece by penetrating through the resisting piece sliding groove, the center sliding groove penetrates through the sliding clamping piece in the length direction of the sliding clamping piece, and the pressing part is slidably arranged on the sliding clamping piece.

[0031] The pressing part comprises a sliding frame body 51, a center clamping block 52, and a lifting screw rod 53, the sliding frame body is slidably sleeved outside the sliding clamping piece, the center clamping block is fixedly arranged at the middle position of the sliding frame body, a center threaded hole penetrating through the center clamping block is arranged on the center clamping block, the center clamping block slides in the center sliding groove, a frame body through hole corresponding to the center threaded hole is arranged on the sliding frame body, the lifting screw rod penetrates through the frame body through hole and the center threaded hole from top to bottom, and the lifting screw rod protrudes outside the sliding frame body.

[0032] One side of the installation frame body is provided with a cleaning groove 25 penetrating through the installation frame body, the cleaning groove is adjacent to the supporting base, and the cleaning groove is parallel to the resisting piece sliding groove. According to the position of the cleaning groove, the sliding clamping piece cooperates with the installation frame body on the side without the cleaning groove, and the plate is clamped on the supporting base between the installation frame body and the sliding clamping piece. After welding is completed, the sliding clamping piece can be removed, the plate is pulled out from the cleaning groove along the upper edge of the cleaning groove, the welding slag on the surface of the plate is cleaned, and the sliding clamping piece can be installed again, so that the welding slag on the supporting base is cleaned out from the cleaning groove.

[0033] Embodiment 2

[0034] The utility model provides a Figs. 1-6The illustrated one is based on the restraint welding method of multi-size plate welding deformation prevention clamp, including support base 1, the upper surface of support base 1 is fixedly installed with installation frame 2, support base 1 and installation frame 2 combination form a half-enclosed shell, the length and width of half-enclosed shell are fifty centimeters, so that it can accommodate most of the plate.

[0035] Two opposite sides of the half-enclosed shell are provided with clamping grooves 21, the inside of the clamping grooves 21 is slidably provided with a sliding clamp 3, the sliding clamp includes a first sliding rod 31, the first sliding rod 31 is slidably provided in the inside of the clamping grooves 21, the first sliding rod 31 is tightly attached to the upper surface of the support base 1, the two sides of the first sliding rod 31 are provided with a first E-shaped piece 32, the middle of the first sliding rod 31 is rotatably provided with a center rod 33, one end of the center rod 33 is fixedly provided with a positive screw 34, the end of the center rod 33 away from the positive screw 34 is fixedly provided with a negative screw 35, the positive screw 34 and the negative screw 35 are respectively threadedly provided in the middle of the corresponding two first E-shaped pieces 32, the end of the positive screw 34 away from the center rod 33 is fixedly provided with a first handle 36, the upper and lower sides of the clamping grooves 21 are provided with clamping auxiliary grooves 23, the two ends of the first E-shaped piece 32 are respectively slidably provided in the inside of the corresponding clamping auxiliary grooves 23.

[0036] In actual use, first align the welds of the two plates to be welded, then place them on the upper surface of the support base 1, at this time, the sliding clamp is actuated until the first sliding rod 31 abuts against the workpiece, the direction of the weld should be as parallel as possible to the direction of the first sliding rod 31, the weld can also have a certain inclination angle, then the first handle 36 is rotated, the first handle 36 drives the center rod 33, the positive screw 34 and the negative screw 35 to rotate, because the directions of the positive screw 34 and the negative screw 35 are opposite, so the two first E-shaped pieces 32 will move towards each other, thereby clamping the sliding clamp to prevent it from moving, thereby transversely restraining the welded plate.

[0037] The use of two first E-shaped pieces to constrain the plate can ensure that the first sliding rod and the installation frame are in a vertical state, and has better clamping effect on regular plates.

[0038] The half-enclosed shell is provided with a resisting groove 22 on the other two sides, and two sliding resisting pieces 4 are slidably provided in the inside of the resisting groove, the sliding resisting piece includes a sliding clamp 41, the sliding clamp 41 is slidably provided in the inside of the resisting groove, the two sides of the sliding clamp 41 are provided with a second E-shaped piece 42, the middle of the sliding clamp 41 is provided with a center sliding groove 43 penetrating through itself, the upper and lower sides of the resisting groove are provided with a resisting auxiliary groove 24, the two ends of the second E-shaped piece 42 are respectively slidably provided in the inside of the corresponding resisting auxiliary grooves.

[0039] The two sides of the sliding clamping piece are provided with clamping piece threaded holes, the second E-shaped piece is provided with a second through hole penetrating through the second E-shaped piece, and a second bolt is used to be screwed in the clamping piece threaded holes through the second through hole.

[0040] The sliding clamping piece 41 is provided with two pressing components 5, the sliding clamping piece 41 is located above the first sliding rod 31, and a gap for the pressing component 5 to pass through is formed between the sliding clamping piece 41 and the first sliding rod 31.

[0041] After the workpiece is clamped by the sliding clamping piece, the two sliding abutting pieces are slid to above the workpiece, and then the four pressing components 5 are respectively located at four corner positions of the workpiece, and then the second handle 54 is rotated to drive the lifting screw rod 53 to rotate, and the lifting screw rod 53 drives the rubber block 55 to descend until the rubber block 55 abuts against the surface of the workpiece, so that the workpiece can be prevented from being warped during welding.

[0042] By setting the sliding clamping piece and the sliding abutting piece, the workpiece can be constrained by using the constraint method, the workpiece can be prevented from being thermally deformed due to heat generated during welding, and the sliding clamping piece, the sliding abutting piece and the pressing component 5 can be moved according to the size of the workpiece, so that the device can be adapted to welding of most plate workpieces, the need for customization is reduced, and the cost in the production process of the enterprise is reduced.

[0043] The half-enclosed shell is provided with a cleaning groove 25 penetrating through the side wall on one side, and the cleaning groove 25 is located below one of the abutting piece auxiliary sliding grooves.

[0044] The above embodiments are only used to illustrate the structure concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the essence of the present application should be covered within the protection scope of the present application.

Claims

1. A multi-size plate clamp for preventing welding deformation based on a restraint welding method, characterized in that: The device includes a support base, a mounting frame, a sliding clamp, a sliding abutment, a clamp groove, and an abutment groove. The mounting frame is fixedly mounted above the support base. The clamp grooves are located on two opposite side walls of the mounting frame, and the abutment grooves are located on two other opposite side walls of the mounting frame. The sliding clamp is movably connected within the clamp groove, and the sliding abutment is slidably connected within the abutment groove. The sliding abutment slides above the sliding clamp, and at least two sets of sliding abutments are arranged parallel to each other within the abutment groove.

2. The multi-size plate anti-deformation fixture based on restraint welding method according to claim 1, characterized in that: The sliding clamp includes a first slide rod, a first pressure member, and a center rod. There are two first pressure members. A slide rod hole is provided through the first slide rod along its length. The center rod is sleeved in the slide rod hole. Both ends of the center rod are provided with reverse threads. The first pressure member is provided with a threaded hole that matches the thread on the center rod.

3. The multi-size plate anti-deformation fixture based on restraint welding method according to claim 2, characterized in that: The first pressing component uses a first E-type component. The upper and lower sides of the clamping slide groove are provided with clamping auxiliary slide grooves. The two sides of the first E-type component are slidably engaged in the clamping auxiliary slide grooves. A threaded hole on one of the first E-type components passes through the middle of the first E-type component. A first throttle is provided at one end of the center rod. The center rod passes through the through threaded hole and the slide rod hole in sequence and is screwed into the threaded hole of the first E-type component on the opposite side.

4. The multi-size plate anti-deformation fixture based on restraint welding method according to claim 1, characterized in that: The sliding abutment includes a sliding latch, a second pressing member, a central groove, and a pressing component. There are two second pressing members. The sliding latch is engaged in the groove of the abutment. The second pressing member is disposed on the outside of the groove of the abutment. The second pressing member passes through the groove of the abutment and is connected to the sliding latch. The central groove extends through the sliding latch along its length. The pressing component is slidably disposed on the sliding latch.

5. The multi-size plate anti-deformation fixture based on restraint welding method according to claim 4, characterized in that: The pressing component includes a sliding frame, a central locking block, and a lifting screw. The sliding frame is slidably sleeved on the outside of the sliding locking component. The central locking block is fixedly installed in the middle position of the sliding frame. The central locking block is provided with a central threaded hole that passes through the central locking block. The central locking block slides in the central sliding groove. The sliding frame is provided with a frame through hole corresponding to the central threaded hole. The lifting screw passes through the frame through hole and the central threaded hole from top to bottom and protrudes out of the outside of the sliding frame.

6. The multi-size plate anti-deformation fixture based on restraint welding method according to claim 5, characterized in that: The top of the lifting screw is provided with a second handle, and a rubber block is provided on the side of the lifting screw away from the second handle. There are no fewer than two pressing components on the same sliding clip.

7. The multi-size plate anti-deformation fixture based on restraint welding method according to claim 4, characterized in that: The second pressing component includes a second E-shaped component and a second bolt. Abutment auxiliary sliding grooves are provided on the upper and lower sides of the abutment sliding groove. Threaded holes for the sliding clamp are provided on both sides. A second through hole is provided on the second E-shaped component. The second bolt is screwed into the threaded hole of the clamp through the second through hole.

8. The multi-size plate anti-welding deformation fixture based on the restraint welding method according to claim 4, characterized in that: A gap is provided between the sliding latch and the sliding clamp to allow the pressing component to pass through.

9. The multi-size plate anti-deformation fixture based on restraint welding method according to claim 1, characterized in that: One side of the mounting frame is provided with a cleaning groove that penetrates the mounting frame. The cleaning groove is adjacent to the support base and parallel to the abutment slide groove.

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