A welding tool for the top opening of a shell part

Abstract

The utility model discloses a kind of welding tool of shell class parts top opening, the utility model relates to the technical field of shell class parts top opening welding, and the front end surface of fixed seat is fixed with support strip block;The top surface of two locating blocks is fixed with guide rod, the top of two guide rods is fixed with baffle, the top of two guide rods is slidably equipped with the float plate of liftable, spring is equipped on the two guide rods, and the upper and lower ends of spring are respectively fixed on baffle and float plate;The insert in float plate is fixed with being located in the just above support strip block;The top surface of concave piece left and right end is fixed with horizontal cylinder, and the acting end of two horizontal cylinder piston rods is fixed with side push block.The utility model has the beneficial effects that: improve the welding quality of shell class parts, greatly improve the welding efficiency of shell class parts.

Description

Technical Field

[0001] This utility model relates to the technical field of welding the top opening of shell parts, and in particular to a welding fixture for the top opening of shell parts. Background Technology

[0002] The structure of shell-shaped parts produced in a certain workshop is as follows: Figures 1-3 As shown, it includes a cylindrical body 1 and two support plates 2 fixed to the front end face of the cylindrical body 1. An opening 3 is formed along the length of the top of the cylindrical body 1, dividing the top of the cylindrical body 1 into a left half and a right half, which are flush with each other. The process requires the use of a laser beam from a laser welding machine to irradiate the opening 3, and the energy of the laser beam to weld the left half and right half together, thus obtaining a finished product that can be supplied to the customer.

[0003] Before welding, the shell-shaped parts need to be fixed in place using tooling fixtures before the laser welding machine can be used to weld opening 3. Currently, the tooling fixtures used in a certain workshop have the following structure: Figures 4-6 As shown, it includes a machine base 4 and two threaded rods 5 fixed on the top surface of the machine base 4. The tooling fixture also includes two pressure plates 6, and one end of the pressure plate 6 has a through hole 7 corresponding to the threaded rod 5.

[0004] The method by which workers use this tooling fixture to hold shell-shaped parts in place is as follows:

[0005] S1. The worker takes out a shell-like part, places the shell body 1 on the table of machine 4, and ensures that the shell body 1 is exactly between the two threaded rods 5. Figure 7 As shown;

[0006] S2. The worker places the through holes 7 of the two pressure plates 6 onto the outside of the two threaded rods 5, as follows: Figure 8 As shown, the left pressure plate 6 is supported on the left half of the cylinder 1, and the right pressure plate 6 is supported on the right half of the cylinder 1.

[0007] S3. The worker threaded a locking nut 8 onto the threaded sections of both threaded rods 5, so that the locking nut 8 presses against the top surface of the pressure plate 6. Under the threaded connection force between the locking nut 8 and the threaded rod 5, the shell part is fixed between the machine base 4 and the pressure plate 6. Figure 9 As shown;

[0008] S4. The worker points the welding head of the laser welding machine toward the opening 3 of the cylinder 1, turns on the laser welding machine, and the laser beam generated by the welding head irradiates the opening 3, thereby welding the left half and the right half of the cylinder 1 together to obtain the first finished product.

[0009] S5. The worker unscrews the locking nut 8 from the threaded rod 5, then removes the pressure plate 6, and then removes the first finished product from the machine 4.

[0010] S6. Workers can repeat steps S1 to S5 multiple times to continuously weld the opening 3 of the shell parts, thereby obtaining a batch of finished products.

[0011] However, although the tooling and fixtures used in the workshop are usable, they still have the following technical defects:

[0012] I. In step S3, when the two pressure plates 6 press down on the left and right halves of the shell part's cylinder 1 respectively, both the left and right halves show downward deformation, resulting in an uneven top surface of the finished product. Therefore, this tooling fixture reduces the welding quality of the shell part.

[0013] II. In step S3, the worker needs to rotate the locking nut 8 downwards to fix the shell part. In step S5, the worker also needs to unscrew the locking nut 8 from the threaded rod 5 upwards to remove the finished product. Both of these processes require the worker to rotate the locking nut 8, and the operation of rotating the locking nut 8 takes a long time, resulting in a long time required to complete the welding of a shell part. This undoubtedly reduces the welding efficiency of the shell part.

[0014] Therefore, there is an urgent need for a welding fixture that can improve the welding quality and efficiency of shell parts. Utility Model Content

[0015] The purpose of this invention is to overcome the shortcomings of the prior art and provide a welding fixture for the top opening of shell parts that improves the welding quality and greatly increases the welding efficiency of shell parts.

[0016] The purpose of this utility model is achieved through the following technical solution: a welding fixture for a shell part with a top opening, comprising a concave part, a plate fixed inside the concave part and located on its bottom surface, two longitudinally arranged positioning blocks fixed on the top surface of the plate, the horizontal distance between the inner end faces of the two positioning blocks being equal to the horizontal width of the shell part, a fixing seat fixed on the top surface of the plate located behind the two positioning blocks, a support strip block fixed on the front end face of the fixing seat, the support strip block extending forward into the area enclosed by the two positioning blocks;

[0017] Guide rods are fixed on the top surfaces of the two positioning blocks, baffles are fixed on the top ends of the two guide rods, and a liftable floating plate is slidably sleeved between the two guide rods. Springs are sleeved on the two guide rods, and the upper and lower ends of the springs are fixed to the baffles and the floating plate, respectively. An insert located directly above the support strip block is fixed inside the floating plate. A longitudinally arranged strip groove is fixed inside the insert. The left and right ends of the floating plate are both provided with downwardly inclined slopes.

[0018] Horizontal cylinders are fixed on the top surfaces of the left and right ends of the concave part. Side push blocks are fixed on the working ends of the piston rods of the two horizontal cylinders. The wedge-shaped surfaces of the two side push blocks are respectively matched with the two inclined surfaces of the floating plate. Slide strips are fixed on the inner ends of the two side push blocks. The two slide strips are distributed and slidably installed in the two positioning blocks.

[0019] The fixed base and the two positioning blocks are all set perpendicular to the plate.

[0020] The height of the top surface of the support strip block from the plate is greater than the height of the top surface of the positioning block from the plate.

[0021] The top surfaces of the two positioning blocks are provided with grooves, and the slide bars of the two side push blocks are slidably installed in the two grooves respectively.

[0022] Mounting seats are fixedly provided on both the left and right ends of the concave part, and the cylinder bodies of the two horizontal cylinders are respectively fixed on the top surfaces of the two mounting seats.

[0023] The welding fixture also includes a controller, which is electrically connected to two horizontal cylinders via signal lines.

[0024] This utility model has the following advantages: it improves the welding quality of shell parts and greatly improves the welding efficiency of shell parts. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of a shell-type part;

[0026] Figure 2 for Figure 1 The main view;

[0027] Figure 3 for Figure 1 Top view;

[0028] Figure 4 This is a structural diagram of a tooling fixture in the prior art;

[0029] Figure 5 This is a schematic diagram of the pressure plate structure;

[0030] Figure 6 for Figure 5 The main view;

[0031] Figure 7 This is a schematic diagram of placing the cylindrical body of a shell-type part on the machine table.

[0032] Figure 8 A schematic diagram showing the through holes of the two pressure plates respectively fitted onto the outside of the two threaded rods;

[0033] Figure 9 This is a schematic diagram showing shell-shaped parts being fixed between the machine base and the pressure plate.

[0034] Figure 10 This is a schematic diagram of the structure of this utility model;

[0035] Figure 11 for Figure 10 The main view;

[0036] Figure 12 for Figure 10 A structural view excluding the horizontal cylinder, side push block, and slide bar;

[0037] Figure 13 for Figure 12 A schematic diagram of the structure without the floating plate and spring;

[0038] Figure 14 This is a schematic diagram showing the connection between the floating plate and the insert;

[0039] Figure 15 This is a schematic diagram showing the connection between the horizontal cylinder, the side push block, and the slide bar.

[0040] Figure 16 A schematic diagram illustrating the positioning of shell-shaped parts;

[0041] Figure 17 for Figure 16 The main view;

[0042] Figure 18 A schematic diagram illustrating how to fix shell-shaped parts;

[0043] Figure 19 This is a physical image of the present invention;

[0044] In the picture:

[0045] 1-Cylinder body, 2-Support plate, 3-Opening, 4-Machine platform, 5-Threaded rod, 6-Pressure plate, 7-Through hole, 8-Locking nut;

[0046] 9-Concave part, 10-Plate, 11-Positioning block, 12-Fixed seat, 13-Supporting strip block, 14-Guide rod; 15-Floating plate, 16-Spring, 17-Insert, 18-Strip groove, 19-Inclined surface, 20-Horizontal cylinder, 21-Side push block, 22-Wedge surface, 23-Slide bar, 24-Slide groove. Detailed Implementation

[0047] The present invention will be further described below with reference to the accompanying drawings. The scope of protection of the present invention is not limited to the following description:

[0048] like Figures 10-15 As shown, a welding fixture for a shell-like part with a top opening includes a concave part 9 and a flat plate 10 fixed within the concave part 9 and located on its bottom surface. Two longitudinally arranged positioning blocks 11 are fixed on the top surface of the flat plate 10. The horizontal distance between the inner end faces of the two positioning blocks 11 is equal to the horizontal width of the shell-like part's cylindrical body 1. A fixing seat 12 located behind the two positioning blocks 11 is also fixed on the top surface of the flat plate 10. A support strip block 13 is fixed on the front end face of the fixing seat 12, extending forward into the area enclosed by the two positioning blocks 11. The fixing seat 12 and the two positioning blocks 11 are both perpendicular to the flat plate 10. The height of the top surface of the support strip block 13 from the flat plate 10 is greater than the height of the top surface of the positioning blocks 11 from the flat plate 10.

[0049] Guide rods 14 are fixedly mounted on the top surfaces of the two positioning blocks 11. Baffles are fixedly mounted on the top ends of the two guide rods 14. A liftable floating plate 15 is slidably mounted between the two guide rods 14. Springs 16 are mounted on the two guide rods 14. The upper and lower ends of the springs 16 are fixedly mounted on the baffles and the floating plate 15, respectively. An insert 17 is fixedly mounted inside the floating plate 15, located directly above the support strip block 13. A longitudinally arranged strip groove 18 is fixedly mounted inside the insert 17. The left and right ends of the floating plate 15 are both provided with downwardly inclined slopes 19.

[0050] A horizontal cylinder 20 is fixedly mounted on the top surface of both the left and right ends of the concave part 9. A side push block 21 is fixedly mounted on the working end of the piston rod of each of the two horizontal cylinders 20. The wedge-shaped surface 22 of the two side push blocks 21 respectively cooperates with the two inclined surfaces 19 of the floating plate 15. A slide bar 23 is fixedly mounted on the inner end of each of the two side push blocks 21. The two slide bars 23 are distributed and slidably installed in the two positioning blocks 11.

[0051] Each of the two positioning blocks 11 has a sliding groove 24 on its top surface, and the sliding strips 23 of the two side push blocks 21 are slidably installed in the two sliding grooves 24 respectively. The left and right ends of the concave part 9 are each fixed with a mounting seat, and the cylinder bodies of the two horizontal cylinders 20 are respectively fixed on the top surfaces of the two mounting seats.

[0052] The welding fixture also includes a controller, which is electrically connected to two horizontal cylinders 20 via signal lines. The worker can control the extension or retraction of the piston rods of the two horizontal cylinders 20 through the controller, thus facilitating the worker's operation.

[0053] The working process of this utility model is as follows:

[0054] S1, the worker takes out a... Figures 1-3 The shell-like part shown is fitted onto the support strip 13 from front to back. Then, both the left and right halves of the shell-like part are supported on the top surface of the support strip 13. Since the horizontal distance between the inner end faces of the two positioning blocks 11 is equal to the horizontal width of the shell-like part's cylinder 1, the shell-like part is positioned. Figures 16-17 As shown, at this time, the opening 3 of the cylindrical body 1 of the shell part is just below the strip groove 18 of the insert 17;

[0055] S2. Fixing of Shell Parts: The worker controls the piston rods of both horizontal cylinders 20 to retract. The piston rods drive the side push block 21 to move outward toward the concave part 9. The wedge-shaped surface 22 of the side push block 21 gradually separates from the inclined surface 19 of the floating plate 15. During the separation process, under the elastic restoring force of the spring 16, the floating plate 15 moves downward along the guide rod 14. Finally, the floating plate 15 fixes the left and right halves of the shell part's cylindrical body 1 onto the support strip block 13, thus achieving the fixation of the shell part. Figure 18 As shown;

[0056] In step S2, since the left and right halves of the shell-like part's cylindrical body 1 are fixed between the floating plate 15 and the support strip block 13, the support strip block 13 serves to support the left and right halves of the cylindrical body 1. Neither the left nor the right half will experience downward deformation, compared to... Figures 4-9 The welding fixture shown improves the welding quality of shell-type parts.

[0057] S3. The worker positions the welding head of the laser welding machine toward the strip groove 18 of the insert 17 and aligns it with the opening of the cylinder 1. Then the worker turns on the laser welding machine, and the laser beam generated by the welding head irradiates the opening 3, thereby welding the left half and the right half of the cylinder 1 together to obtain the first finished product.

[0058] S4. Product removal: The worker controls the piston rods of the two horizontal cylinders 20 to extend. The piston rods drive the side push block 21 to move towards the inside of the concave part 9. With the wedge-shaped surface 22 of the side push block 21 cooperating with the inclined surface 19 of the floating plate 15, the floating plate 15 moves upward along the guide rod 14 and compresses the spring 16 upward. When the floating plate 15 moves to a certain height, the worker removes the finished product from the support strip block 13.

[0059] S5. Workers can repeat steps S1 to S4 multiple times to continuously weld the opening 3 of the shell parts, thereby obtaining a batch of finished products.

[0060] In step S2, the worker only needs to retract the piston rods of both horizontal cylinders 20 to move the floating plate 15 downwards and secure the shell-like parts. In step S4, the worker only needs to extend the piston rods of both horizontal cylinders 20 to move the floating plate 15 upwards, facilitating the removal of the product. Therefore, this welding fixture, compared to... Figures 4-9 The tooling fixture shown eliminates the need for workers to tighten the locking nut 8 during the processes of fixing shell parts and removing the product, thus enabling the welding of a shell part to be completed in a short time and greatly improving the welding efficiency of shell parts.

Claims

1. A welding fixture for opening the top of a shell part, characterized by: It includes a concave part (9) and a flat plate (10) fixed inside the concave part (9) and located on its bottom surface. Two longitudinally arranged positioning blocks (11) are fixed on the top surface of the flat plate (10). The horizontal distance between the inner end faces of the two positioning blocks (11) is equal to the horizontal width of the shell part (1). A fixing seat (12) located behind the two positioning blocks (11) is also fixed on the top surface of the flat plate (10). A support strip block (13) is fixed on the front end face of the fixing seat (12). The support strip block (13) extends forward into the area enclosed by the two positioning blocks (11). Guide rods (14) are fixed on the top surfaces of the two positioning blocks (11), baffles are fixed on the top ends of the two guide rods (14), and a liftable floating plate (15) is slidably sleeved between the two guide rods (14). Springs (16) are sleeved on the two guide rods (14), and the upper and lower ends of the springs (16) are fixed on the baffles and the floating plate (15) respectively. An insert (17) located directly above the support strip block (13) is fixed inside the floating plate (15), and a longitudinally arranged strip groove (18) is fixed inside the insert (17). The left and right ends of the floating plate (15) are both provided with downwardly inclined slopes (19). A horizontal cylinder (20) is fixed on the top surface of the left and right ends of the concave part (9). A side push block (21) is fixed on the working end of the piston rod of the two horizontal cylinders (20). The wedge-shaped surface (22) of the two side push blocks (21) is respectively matched with the two inclined surfaces (19) of the floating plate (15). A slide bar (23) is fixed on the inner end of the two side push blocks (21). The two slide bars (23) are distributed and slidably installed in the two positioning blocks (11).

2. The shell part top opening welding tooling according to claim 1, characterized in that: The fixed base (12) and the two positioning blocks (11) are both set perpendicular to the plate (10).

3. The shell part top open welding tooling according to claim 1, characterized in that: The height of the top surface of the support strip block (13) from the plate (10) is greater than the height of the top surface of the positioning block (11) from the plate (10).

4. The shell part top open welding tooling according to claim 1, characterized in that: The top surfaces of the two positioning blocks (11) are provided with grooves (24), and the slide bars (23) of the two side push blocks (21) are slidably installed in the two grooves (24).

5. The shell part top open welding tooling of claim 1, wherein: Mounting seats are fixed on both the left and right ends of the concave part (9), and the cylinder bodies of the two horizontal cylinders (20) are respectively fixed on the top surfaces of the two mounting seats.

6. The shell part top open welding tooling of claim 1, wherein: The welding fixture also includes a controller, which is electrically connected to two horizontal cylinders (20) via signal lines.

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