Positioning jig for welding

Abstract

The utility model relates to the technical field of positioning jigs, in particular to a positioning jig for welding, which comprises a base plate, a power component fixedly connected to the top end of the base plate, a transmission component rotatably connected to the outer side of the power component, a positioning component fixedly connected to the top end of the power component, the transmission component comprises a lantern ring, and a brake pad fixedly connected to the outer side of the lantern ring. The positioning assembly comprises a bearing seat, an extension rod is slidably connected to the inner side of the bearing seat, an oil storage groove is formed in the inner side of the bearing seat, rubber sealing rings are fixedly connected to the upper end and the rear end of the oil storage groove, and a round piece is fixedly connected to the outer side of the extension rod. According to the ceramic material positioning and fixing device, the phenomenon that ceramic materials are damaged in the positioning and fixing process can be effectively avoided, the positioning stability is improved, the damage risk is reduced, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixture technology, specifically a positioning fixture for welding. Background Technology

[0002] Welding positioning fixtures are auxiliary tools used to fix and position workpieces to be welded during the welding process. Through precise clamping, support or positioning structures, they ensure that the workpieces maintain the correct position and posture during welding, thereby improving welding accuracy, ensuring welding quality, increasing production efficiency, and reducing welding defects caused by workpiece position deviations. They are widely used in various welding scenarios.

[0003] Brazing is the most common method of ceramic welding. It uses a filler metal with a melting point lower than that of the base metal. The filler metal melts and wets the ceramic surface at the welding temperature, filling the joint gap and achieving a connection. In order to improve the wettability between ceramic and metal, methods such as ceramic surface metallization treatment or adding active metal elements to the filler metal are often used.

[0004] During the welding process, ceramic materials have high hardness and brittleness due to their special physical properties. This places extremely strict requirements on the positioning and clamping of ceramic materials. When ceramic materials are subjected to external forces, their internal stress distribution is quite complex. If the clamping speed is not properly controlled, it will apply a large instantaneous stress to the ceramic, exceeding its bearing limit, which can easily lead to internal cracks or even breakage of the material. Therefore, a positioning fixture for welding is proposed to address the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a positioning fixture for welding, so as to solve the problem that if the clamping speed is not properly controlled during the welding process of ceramic materials, large instantaneous stress will be applied to the ceramic, exceeding its bearing limit, which can easily lead to cracks or even breakage inside the material.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A positioning fixture for welding includes a base plate. A power component is fixedly connected to the top of the base plate. A transmission component is rotatably connected to the outside of the power component. A positioning component is fixedly connected to the top of the power component. The transmission component includes a collar. A brake pad is fixedly connected to the outside of the collar. A ball bearing is fixedly connected to the inside of the collar. A push handle and a telescopic rod are fixedly connected to the outside of the brake pad. The positioning component includes a support seat. An extension rod is slidably connected to the inside of the support seat. An oil reservoir is formed on the inside of the support seat. Rubber sealing rings are fixedly connected to the upper end and the rear end of the oil reservoir. A circular plate is fixedly connected to the outside of the extension rod. A flow-slowing hole is formed on the inside of the circular plate. The ball bearing is fixedly connected to the outside of the power component. One end of the power component is fixedly connected to the inside of the collar.

[0008] As a further optimization of this utility model, the power assembly includes a fixed plate, a hydraulic rod is fixedly connected to the inner side of the fixed plate, a friction plate is fixedly connected to the piston rod end of the hydraulic rod, a vertical plate is fixedly connected to the top of the fixed plate, a horizontal column is fixedly connected to one side of the vertical plate, and a clock spring is fixedly connected to the outer side of the horizontal column.

[0009] As a further optimization of this utility model, the oil storage tank extends vertically through the inner side of the support base, the oil storage tank is shaped as three cylindrical sections of different diameters, the slow-flow hole extends vertically through the inner side of the circular plate, the outer side of the circular plate is in contact with the inner side of the oil storage tank, and the outer side of the extension rod is in contact with the inner side of the rubber sealing ring.

[0010] As a further optimization of this utility model, the top end of the extension rod is fixedly connected to a cover plate, the bottom end of the cover plate is fixedly connected to a first rubber pad, the top end of the load-bearing seat is fixedly connected to a second rubber pad, and the second rubber pad is aligned vertically with the first rubber pad.

[0011] As a further optimization of this utility model, the substrate has several threaded holes on its inner side, and the fixing plate is fixed to the threaded holes of the substrate by bolts.

[0012] As a further optimization of this utility model, the collar is sleeved on the outside of the crossbar, a gap is provided between the inner side of the collar and the outer side of the crossbar, the push handle is located at the upper end of the brake pad, and the telescopic rod is located at the rear end of the brake pad.

[0013] As a further optimization of this utility model, the telescopic rod is fixedly connected to a sleeve at its rear end, and the extension rod is fixedly connected to a U-shaped plate at its bottom end. The sleeve of the telescopic rod is rotatably connected to the U-shaped plate of the extension rod through a bearing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the device, through its power component, transmission component, and positioning component, effectively prevents damage to ceramic materials during positioning and fixing. When fixing the ceramic material, the fixing speed and contact force can be precisely controlled. During positioning, the elastic storage of the torsion spring and the throttling effect of the hydraulic oil ensure a stable output of clamping force, preventing internal cracks or even breakage of the ceramic material due to excessive instantaneous stress. Simultaneously, the reasonable setting of friction and support structures further improves the stability and reliability of fixing the ceramic material. This design not only improves the accuracy and quality of welding positioning but also significantly reduces the risk of damage to the ceramic material during processing, demonstrating significant practical value and application prospects. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the power component structure of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the transmission component of this utility model;

[0019] Figure 4 This is a schematic diagram of the spring structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the friction plate structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the telescopic rod structure of this utility model;

[0022] Figure 7 This is a cross-sectional structural diagram of the positioning component of this utility model;

[0023] Figure 8 This utility model Figure 7 A schematic diagram of the structure at point A.

[0024] In the diagram: 1. Substrate;

[0025] 2. Power assembly; 21. Fixing plate; 22. Hydraulic rod; 23. Friction plate; 24. Vertical plate; 25. Horizontal column; 26. Clockwork spring;

[0026] 3. Transmission assembly; 31. Collar; 32. Brake pad; 33. Ball bearing; 34. Push handle; 35. Telescopic rod;

[0027] 4. Positioning component; 41. Support seat; 42. Extension rod; 43. Oil reservoir; 44. Rubber sealing ring; 45. Circular disc; 46. Flow-slowing hole; 47. Cover plate; 48. First rubber pad; 49. Second rubber pad. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] Please see Figure 1-8 This utility model provides a technical solution:

[0031] A positioning fixture for welding includes a base plate 1. A power component 2 is fixedly connected to the top of the base plate 1. A transmission component 3 is rotatably connected to the outside of the power component 2. A positioning component 4 is fixedly connected to the top of the power component 2. The transmission component 3 includes a collar 31. A brake pad 32 is fixedly connected to the outside of the collar 31. A ball bearing 33 is fixedly connected to the inside of the collar 31. A push handle 34 and a telescopic rod 35 are fixedly connected to the outside of the brake pad 32. The positioning component 4 includes a support seat 41. An extension rod 42 is slidably connected to the inside of the support seat 41. An oil reservoir 43 is opened on the inside of the support seat 41. Rubber sealing rings 44 are fixedly connected to the upper end and the rear end of the oil reservoir 43. A circular piece 45 is fixedly connected to the outside of the extension rod 42. A slow-flow hole 46 is opened on the inside of the circular piece 45. The ball bearing 33 is fixedly connected to the outside of the power component 2. One end of the power component 2 is fixedly connected to the inside of the collar 31.

[0032] As a further implementation of this solution, the power assembly 2 includes a fixed plate 21, a hydraulic rod 22 fixedly connected to the inner side of the fixed plate 21, a friction plate 23 fixedly connected to the end of the piston rod of the hydraulic rod 22, a vertical plate 24 fixedly connected to the top of the fixed plate 21, a horizontal column 25 fixedly connected to one side of the vertical plate 24, and a spring 26 fixedly connected to the outer side of the horizontal column 25. With the above configuration, a relatively constant force output can be maintained during a long stroke, and the extension rod 42 can be driven downward by the transmission assembly 3 to achieve the effect of fixing the ceramic material.

[0033] As a further implementation of this solution, the oil storage tank 43 extends vertically through the inner side of the support base 41. The oil storage tank 43 is shaped as three cylindrical sections of different diameters. The slow-flow hole 46 extends vertically through the inner side of the disc 45. The outer side of the disc 45 is in contact with the inner side of the oil storage tank 43. The outer side of the extension rod 42 is in contact with the inner side of the rubber sealing ring 44. Through the above settings, the clamping speed can be effectively controlled to avoid damage to the ceramic material due to excessive instantaneous stress, while maintaining a stable output of clamping force.

[0034] As a further implementation of this solution, a cover plate 47 is fixedly connected to the top of the extension rod 42, a first rubber pad 48 is fixedly connected to the bottom of the cover plate 47, and a second rubber pad 49 is fixedly connected to the top of the load-bearing seat 41. The second rubber pad 49 is aligned vertically with the first rubber pad 48. Through the above arrangement, the friction between the first rubber pad 48, the second rubber pad 49 and the ceramic material can be increased, while reducing the probability of damage to the ceramic material.

[0035] As a further implementation of this solution, the inner side of the substrate 1 is provided with several threaded holes, and the fixing plate 21 is fixed to the threaded holes of the substrate 1 by bolts. With the above arrangement, this connection method enables the device to quickly adjust and fix the position of the positioning fixture according to different welding requirements and the size of ceramic materials, thereby improving the versatility and flexibility of the device.

[0036] As a further implementation of this solution, the collar 31 is fitted onto the outside of the horizontal column 25, and a gap is provided between the inner side of the collar 31 and the outer side of the horizontal column 25. The push handle 34 is located at the upper end of the brake pad 32, and the telescopic rod 35 is located at the rear end of the brake pad 32. A sleeve is fixedly connected to the rear end of the telescopic rod 35, and a U-shaped plate is fixedly connected to the bottom end of the extension rod 42. The sleeve of the telescopic rod 35 is rotatably connected to the U-shaped plate of the extension rod 42 through a bearing. Through the above arrangement, the friction during rotation can be reduced, energy loss can be reduced, and the operating efficiency of the device can be improved. The layout design of the push handle 34 and the telescopic rod 35 makes the device more labor-saving during operation.

[0037] Workflow: When positioning the ceramic material to be welded, firstly, arrange the positions of multiple power components 2 according to the size of the ceramic material. Fix the fixing plate 21 to the base plate 1 with bolts. Initially, the first rubber pad 48 and the second rubber pad 49 are in contact. Hold the push handle 34 and rotate it away from the telescopic rod 35. The push handle 34 drives the brake pad 32 and the collar 31 to rotate. The collar 31 rotates on the outside of the cross column 25 through the ball bearing 33. The ball bearing 33 reduces the friction when the collar 31 rotates. When the collar 31 rotates, it drives the spring 26 to spring back. Upon charging, brake pad 32 drives telescopic rod 35 to rotate, causing the rear end of telescopic rod 35 to move upward. Simultaneously, telescopic rod 35 retracts, pushing extension rod 42 upward. Extension rod 42 then drives disc 45 upward. Hydraulic oil is stored inside oil reservoir 43, and as disc 45 moves upward, the hydraulic oil flows through slow-flow hole 46. Extension rod 42 drives cover plate 47 and first rubber pad 48 upward. Ceramic material is then placed between first rubber pad 48 and second rubber pad 49. The placement of first rubber pad 48 and second rubber pad 49 improves the contact between first rubber pad 48, second rubber pad 49 and ceramic material. The friction force is reduced, and the chance of damage to the ceramic material is also reduced. After the ceramic material is placed, the push handle 34 is released. Under the action of the torque of the spring 26, the spring 26 will drive the collar 31 and brake pad 32 to rotate. The spring 26 is designed to maintain a relatively constant force output over a long stroke. This characteristic allows it to provide stable support during positioning, avoiding inaccurate positioning due to force fluctuations. Based on the same principle, the extension rod 42, disc 45, cover plate 47, and first rubber pad 48 will move downwards. Since the aperture of the slow flow hole 46 is small, the downward movement of the first rubber pad 48 can be controlled. The speed of movement is controlled to prevent damage to the ceramic material caused by the rapid fixation of the first rubber pad 48 to the ceramic material. When the first rubber pad 48 is in close contact with the ceramic material, the hydraulic rod 22 is activated to drive the friction plate 23 to move. The friction plate 23 and the brake pad 32 are in contact, and the friction between the friction plate 23 and the brake pad 32 is used to fix the brake pad 32, thereby improving the stability of the fixation of the ceramic material. Based on the above principles, the device can control the fixing speed of the ceramic material when fixing it, thereby controlling the contact force between the ceramic material and the fixing structure, and thus avoiding damage to the ceramic material during positioning.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning jig for welding, comprising a base plate (1), characterized in that: The substrate (1) top fixedly connected with power components (2), the power components (2) outside rotary connection has transmission assembly (3), the power components (2) top fixedly connected with positioning assembly (4); The transmission assembly (3) includes a collar (31), the collar (31) outside fixedly connected with brake pad (32), the collar (31) inside fixedly connected with ball bearing (33), the brake pad (32) outside fixedly connected with push handle (34) and telescopic rod (35); The positioning assembly (4) includes a bearing seat (41), the bearing seat (41) inside slidingly connected with extension rod (42), the bearing seat (41) inside is provided with oil storage tank (43), the oil storage tank (43) upper end and rear end are both fixedly connected with rubber sealing ring (44), the extension rod (42) outside fixedly connected with round piece (45), the round piece (45) inside is provided with slow flow hole (46); The ball bearing (33) inside fixedly connected in the outside of power components (2), power components (2) one end fixedly connected in the inside of collar (31).

2. The positioning fixture for welding according to claim 1, wherein: The power components (2) include a fixed plate (21), the fixed plate (21) inside fixedly connected with hydraulic rod (22), the hydraulic rod (22) piston rod tip fixedly connected with friction plate (23), the fixed plate (21) top fixedly connected with vertical plate (24), the vertical plate (24) one side fixedly connected with horizontal column (25), the horizontal column (25) outside fixedly connected with clockwork spring (26).

3. The fixture for welding of claim 1, wherein: The oil storage tank (43) up and down through the inside of bearing seat (41), the oil storage tank (43) is provided with the shape of three different diameter cylinder, the slow flow hole (46) up and down through the inside of round piece (45), the round piece (45) outside and oil storage tank (43) inside fit, the extension rod (42) outside and rubber sealing ring (44) inside fit.

4. The fixture of claim 1 wherein: The extension rod (42) top fixedly connected with cover plate (47), the cover plate (47) bottom fixedly connected with first rubber pad (48), the bearing seat (41) top fixedly connected with second rubber pad (49), the second rubber pad (49) and first rubber pad (48) are vertically aligned.

5. The positioning fixture for welding of claim 2, wherein: The substrate (1) inside is provided with a plurality of threaded holes, the fixed plate (21) is fixed with the screw hole of substrate (1) through bolt.

6. The positioning fixture for welding of claim 1, wherein: The collar (31) is set in the outside of horizontal column (25), the collar (31) inside and horizontal column (25) outside are provided with a spacing, the push handle (34) is located in the upper end of brake pad (32), the telescopic rod (35) is located in the rear end of brake pad (32).

7. The positioning fixture for welding of claim 1, wherein: The telescopic rod (35) rear end fixedly connected with sleeve, the extension rod (42) bottom fixedly connected with U-shaped plate, the sleeve of telescopic rod (35) is rotatably connected with the U-shaped plate of extension rod (42) through bearing.

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