CN211804366U

CN211804366U - Novel welding of annular metal clamping device

Info

Publication number: CN211804366U
Application number: CN202020111201.XU
Authority: CN
Inventors: 李雄伟
Original assignee: Zhuozhou Fazhan Machinery Manufacturing Co ltd
Current assignee: Zhuozhou Fazhan Machinery Manufacturing Co ltd
Priority date: 2020-01-18
Filing date: 2020-01-18
Publication date: 2020-10-30
Anticipated expiration: 2030-01-18

Abstract

The utility model provides a novel welding of annular metal clamping device is provided with anodal subassembly and negative pole subassembly on the board. The positive pole subassembly includes the round wheel, and the round wheel rotates with the board to be connected, and the round wheel sets up rocker and connecting rod one respectively with the rotation center both sides of board, and the one end and the round wheel of connecting rod one rotate to be connected, and the other end and the one end fixed connection of axle, the other end of axle pass telescopic through-hole installation positive pole, and the positive pole links to each other with the electric wire of power, and sleeve welded fastening is on the board, and the epaxial stopper one and the stopper two that are provided with respectively of sleeve both sides, installation spring between stopper one and the sleeve. The negative pole subassembly is including fixing the microscope carrier on the board, and the material loading piece is installed on the microscope carrier, and support and negative pole fixed mounting are on the microscope carrier, and the electric wire of power passes through the hole of microscope carrier bottom and links to each other with the negative pole, and the material loading piece is provided with ladder groove and locating surface. Adopt the utility model discloses the problem that the solder joint is not firm, inefficiency, rejection rate is high when can solving the welding clamping.

Description

Novel welding of annular metal clamping device

Technical Field

The utility model relates to a welding field of metal clamping especially relates to a welding set of spot welder of annular metal clamping.

Background

In industrial production, annular metal clamps are commonly used in pipelines such as pressure reducing valves, safety valves, water purifiers and the like, and are generally made of stainless steel or aluminum alloy materials. Due to the particularity of the installation position and the application, the clamp adopts a special structure. As shown in fig. 3, in order to provide a clamping structure for a pressure reducing valve pipeline, the clamping is composed of an outer ring 31 and an inner plate 32, the inner plate 32 is bent into a specific shape, the inner plate 32 and the outer ring 31 are welded together by using the resistance welding principle, and a point H is a welding point. Specifically, the positive electrode of the spot welding machine is pressed on the point H of the outer ring 31, the negative electrode is pressed on the point H of the inner sheet 32, after the power supply is switched on, the positive electrode of the current spot welding machine flows to the negative electrode, and the contact surfaces of the positive electrode and the negative electrode and the metal clamp generate resistance heat melting. After power is removed, the outer ring 31 and the inner plate are welded together. At present, manual welding is often adopted in the clamping welding process. Because the clamping size is little, the solder joint position is difficult to control when manual welding, has the problem that the solder joint is insecure, inefficiency, rejection rate are high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel welding of annular metal clamping device to the problem of inefficiency, appearance difference are big, the rejection rate is high when solving the clamping welding.

In order to achieve the purpose, the utility model provides a novel welding device of an annular metal clamp, which comprises a machine table, wherein a positive electrode component and a negative electrode component which are connected with a spot welding machine are arranged on the machine table;

the positive electrode assembly comprises a round wheel, the round wheel is rotatably connected with the machine table through a rotating shaft, a rocker and a first connecting rod are respectively arranged on two sides of a rotating center of the round wheel and the machine table, one end of the first connecting rod is rotatably connected with the round wheel, the other end of the first connecting rod is fixedly connected with one end of a shaft, the other end of the shaft penetrates through a through hole of a sleeve to be provided with a positive electrode connected with the spot welding machine, the sleeve is fixed on the machine table through a connecting block, a first limiting block and a second limiting block are respectively fixedly arranged on two sides of the sleeve of the shaft;

the negative pole subassembly is including fixing the microscope carrier on the board, and the material loading piece is installed on the microscope carrier, and the support passes the through-hole fixed mounting of material loading piece with spot welder negative pole, and spot welder's electric wire links to each other with the negative pole, and material loading piece upper surface is provided with the ladder groove and the locating surface that are used for placing the work piece.

Preferably, the rotating shaft is a pin shaft, an external thread is arranged at one end of the pin shaft, a corresponding internal thread hole is formed in the machine table, and the pin shaft penetrates through a center hole of the round wheel to be in threaded connection with the machine table.

Preferably, one end of the shaft mounting anode is of a conical boss structure, the anode of the spot welding machine is fixed through a third screw, the shaft is a hollow shaft, and an electric wire of the spot welding machine enters from a through hole formed in a connecting end of the shaft and the connecting rod and penetrates through the hollow shaft to be connected with the anode.

Preferably, the first limiting block and the second limiting block are fixedly connected with the shaft through screws, and the diameter of the first limiting block is larger than that of the spring and larger than that of the through hole of the sleeve.

Preferably, the negative pole of the spot welding machine and one end of the support are both provided with external threads, the carrying platform is provided with corresponding internal thread holes, the negative pole and the support are fixedly connected with the carrying platform through threads, and the negative pole is in contact with the workpiece after the workpiece is placed on the upper material block.

Therefore, through the utility model discloses a welding set of annular metal clamping, the ladder groove through the material loading piece and the spring mechanism of locating surface and positive subassembly, the problem that the solder joint is not firm, inefficiency, rejection rate is high when having solved the welding clamping has the solder joint reliably, efficient advantage.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a welding device for an annular metal clip according to the present invention;

FIG. 2 is a schematic view of a negative electrode assembly of an embodiment of the welding device for the annular metal clip of the present invention;

fig. 3 is a schematic view of a workpiece according to an embodiment of the welding device for the annular metal clip of the present invention.

Reference numerals

1. A machine platform; 2. a first bolt; 3. a first connecting rod; 4. an adjusting block; 5. a clamp spring; 6. a first screw; 7. a spring; 8. a sleeve; 9. a second screw; 10. a third screw; 11. a fourth screw; 12. feeding a material block; 13. a stage; 14. a positive electrode; 15. a second limiting block; 16. connecting blocks; 17. a first limiting block; 18. a shaft; 19. a rocker; 20. a second bolt; 21. a rotating shaft; 22. a round wheel; 23. a negative electrode; 24. a fifth screw; 25. a support; 26. a stepped groove; 27. positioning the surface; 31. a clamp outer ring; 32. and an inner clip sheet.

Detailed Description

Example (b):

the present embodiment will be further described with reference to all the drawings;

as shown in fig. 1, the utility model discloses welding set of annular metal clamping, including board 1, positive pole subassembly, negative pole subassembly and power, the equal fixed mounting of positive pole subassembly and negative pole subassembly is on board 1.

The positive pole subassembly of spot welder includes round wheel 22, and round wheel 22 rotates through pivot 21 with board 1 to be connected, and pivot 21 adopts the round pin axle, and the one end of round pin axle is provided with the external screw thread, sets up corresponding internal thread hole on the board 1, and the round pin axle passes round wheel 22's centre bore and board 1 threaded connection. And a bushing or a gasket is arranged between the rotating shaft 21 and the circular wheel 22, so that the rotating stability of the circular wheel 22 is ensured.

The round wheel 22 and the rotating shaft 21 can also be rotatably connected through a bearing.

The rocking bar 19 and the connecting rod 3 are respectively arranged on the two sides of the rotating center of the circular wheel 22 and the machine table 1, and in order to meet the requirement of labor saving, the connecting point of the connecting rod 3 and the circular wheel 22 and the connecting point of the rocking bar 19 and the circular wheel 22 are positioned at the two ends of the diameter of the circular wheel 22.

For the convenience of operation, the diameter of the round wheel 22 ranges from 20 cm to 60 cm, and the length of the rocker 19 does not exceed 50 cm.

The first connecting rod 3 is of an L-shaped structure, through holes are formed in two ends of the first connecting rod, one end of the first connecting rod 3 is rotatably connected with the round wheel 22 through a first bolt 2, and the other end of the first connecting rod 3 is fixedly connected with one end of the shaft 18 through a second bolt 20. An adjusting block 4 is arranged between the first connecting rod 3 and the shaft 18, the adjusting block 4 comprises a plurality of nuts and gaskets, and the fastening degree between the first connecting rod 3 and the shaft 18 is adjusted by adjusting the positions of the nuts in the adjusting block 4 or increasing or decreasing the gaskets. The aperture of the through hole formed in the first connecting rod 3 and allowing the second bolt 20 to penetrate through is slightly larger than the diameter of the second bolt 20, and the distance between the second bolt 20 and the adjusting block 4 is slightly larger than the thickness of the first connecting rod 3, so that the first connecting rod 3 has a certain movement allowance.

The other end of the shaft 18 penetrates through a through hole of the sleeve 8 to be provided with an anode 14 of the spot welding machine, the sleeve 8 is fixedly welded on the machine table 1 through a connecting block 16, a first limiting block 17 and a second limiting block 15 are fixedly arranged on the two sides of the sleeve 8 of the shaft 18 respectively, and a spring 7 is arranged between the first limiting block 17 and the sleeve 8.

In order to satisfy the movement amount of the shaft 18 driving the anode 14, the diameter of the through hole of the sleeve 8 is larger than the diameter of the shaft 18 at the position matched with the sleeve 8 by 3-5 mm.

The shaft 18 is provided with a screw hole for installing a first limiting block 17 and a second limiting block 15, the first limiting block 17 is fixedly connected with the shaft 18 through a first screw 6, and the second limiting block 15 is fixedly connected with the shaft 18 through a second screw 9.

In order to meet the use requirement of the spring 7, the size of the first limiting block 17 is larger than the diameter of the spring 7 and larger than the diameter of the through hole of the sleeve 8. The limiting block can be of a cylindrical structure or a square structure.

The shaft 18 is a hollow shaft, an electric wire of a power supply enters from a through hole arranged at the connecting end of the shaft 18 and the first connecting rod 3, penetrates through the hollow shaft 18 and is connected with the positive electrode 14, and the positive electrode 14 of the spot welding machine is fixed through a third screw 10.

Because the positive electrode 14 of the spot welding machine is small in diameter, the end, where the positive electrode 14 is installed, of the shaft 18 is in a conical boss structure, so that the operation and observation are convenient when a workpiece is machined.

As shown in fig. 2, the negative electrode assembly of the spot welding machine includes a stage 13 fixed on the machine table 1, and the upper block 12 is mounted on the stage 13 by a screw five 24.

The negative pole 23 of spot welder all sets up the external screw thread with the one end of support 25, and microscope carrier 13 sets up corresponding internal thread hole, and support 25 and spot welder negative pole 23 pass the through-hole of material loading piece 12, and it is fixed with microscope carrier 13 to adopt threaded connection.

The power supply wire is connected to the negative electrode 23 of the spot welder through a through hole in the bottom of the stage 13.

Stage 13 is made of an insulating material, and generally, ceramics, stone, organic resin, or the like can be used.

The upper surface of the upper material block 12 is provided with a stepped groove 26 for placing a workpiece and a positioning surface 27. When a workpiece is processed, the workpiece outer ring 31 is placed at the stepped groove 26, the opening of the workpiece outer ring 31 is aligned with the positioning surface 27, one end of the workpiece inner sheet 32 is installed on the support 25 and fixed through the screw IV 11, the other end of the workpiece inner sheet 32 is attached to the workpiece outer ring 31, and the negative electrode 23 is pressed on a welding point of the workpiece inner sheet 32.

When a workpiece is machined, after the workpiece outer ring 31 and the inner sheet 32 are placed, the power supply is switched on, the rocker 19 is manually operated to rotate the round wheel 22, the round wheel 22 drives the shaft 18 to extend forwards through the first connecting rod 3, the anode 14 of the spot welding machine is made to contact with the workpiece outer ring 31, the anode 14 and the cathode 23 of the spot welding machine are conducted to generate resistance heat, and the welding spot H of the workpiece is melted to finish welding. Since the first limit stop 17 on the shaft 18 compresses the spring 7 to generate a restoring force, after the welding is completed, the spring 7 pushes the shaft 18 to return to the initial position, and the shaft 18 resets the round wheel 22 and the rocker 21 through the first connecting rod 3.

Similarly, the utility model discloses also can define initial position and be welding position, spot welder's positive pole 14 and negative pole 23 contact work piece, operation rocker 5 makes round wheel 22 rotate the anodal 14 and the negative pole 23 separation of back spot welder, only need the position or the tension of adjustment spring 7 can.

The spot welding machine is of an existing structure, and the power supply is an existing power supply at present and is not limited here.

The utility model discloses a positive negative pole material is aluminium oxide copper or red copper, can satisfy the welding needs of metal clamping such as galvanized steel sheet, nickel plate, nickel strap, aluminum alloy, stainless steel, brass.

Therefore, through the utility model discloses a welding set of annular metal clamping, the ladder groove 26 and locating surface 27 through material loading piece 12 and the spring 7 mechanism of anodal subassembly have solved the problem that the solder joint is not firm, inefficiency, rejection rate is high when welding the clamping, have that the solder joint is reliable, efficient advantage.

The above are specific embodiments of the present invention, but the scope of protection of the present invention should not be limited thereto. Any changes or substitutions which can be easily conceived by those skilled in the art within the technical scope of the present invention are covered by the protection scope of the present invention, and therefore, the protection scope of the present invention is subject to the protection scope defined by the claims.

Claims

1. The utility model provides a novel welding of annular metal clamping device which characterized in that: the spot welding machine comprises a machine table (1), wherein a positive electrode assembly and a negative electrode assembly which are connected with the spot welding machine are arranged on the machine table (1);

the positive electrode assembly comprises a round wheel (22), the round wheel (22) is rotatably connected with the machine table (1) through a rotating shaft (21), a rocker (19) and a first connecting rod (3) are respectively arranged on two sides of a rotating center of the round wheel (22) and the machine table (1), one end of the first connecting rod (3) is rotatably connected with the round wheel (22), the other end of the first connecting rod (3) is fixedly connected with one end of a shaft (18), the other end of the shaft (18) penetrates through a through hole of a sleeve (8) to be provided with a positive electrode (14) connected with a spot welding machine, the sleeve (8) is fixed on the machine table (1) through a connecting block (16), a first limiting block (17) and a second limiting block (15) are respectively fixedly arranged on two sides of the sleeve (8) of the shaft (18), and a spring (7) is arranged between the first;

the negative electrode assembly comprises a carrying platform (13) fixed on the machine table (1), a feeding block (12) is installed on the carrying platform (13), a support (25) and a spot welder negative electrode (23) penetrate through a through hole of the feeding block (12) to be fixedly installed on the carrying platform (13), an electric wire of the spot welder is connected with the negative electrode (23), and a stepped groove (26) and a positioning surface (27) for placing a workpiece are arranged on the upper surface of the feeding block (12).

2. The novel welding device for the annular metal clamp according to claim 1, is characterized in that: the rotating shaft (21) is a pin shaft, an external thread is arranged at one end of the pin shaft, a corresponding internal thread hole is formed in the machine table (1), and the pin shaft penetrates through a center hole of the round wheel (22) to be in threaded connection with the machine table (1).

3. The novel welding device for the annular metal clamp according to claim 1, is characterized in that: one end of the shaft (18) provided with the anode (14) is of a conical boss structure, the anode (14) of the spot welding machine is fixed through a third screw (10), the shaft (18) is a hollow shaft, and an electric wire of the spot welding machine enters from a through hole formed in the connecting end of the shaft (18) and the first connecting rod (3) and penetrates through the hollow shaft (18) to be connected with the anode (14).

4. The novel welding device for the annular metal clamp according to claim 1, is characterized in that: the first limiting block (17), the second limiting block (15) and the shaft (18) are fixedly connected through screws, and the diameter of the first limiting block (17) is larger than that of the spring (7) and larger than that of the through hole of the sleeve (8).

5. The novel welding device for the annular metal clamp according to claim 1, is characterized in that: the spot welding machine is characterized in that external threads are arranged at one end of a negative electrode (23) and one end of a support (25) of the spot welding machine, a corresponding internal thread hole is formed in a carrying platform (13), the negative electrode (23) and the support (25) are fixedly connected with the carrying platform (13) in a threaded mode, and the negative electrode (23) is in contact with a workpiece after the workpiece is placed on an upper material block (12).