Electric resistance welding machine head for oil heater radiating fin

Abstract

The utility model discloses an electric resistance welding machine head for an oil heater cooling fin. The electric resistance welding machine head comprises an air cylinder assembly. The lower electrode shaft assembly is driven by the cylinder assembly to lift up and down and is arranged in the cylinder assembly; the lower welding head is eccentrically arranged at the top of the lower electrode shaft assembly through a lower welding head seat; the upper electrode shaft assembly sleeves the outer part of the lower electrode shaft assembly in a spaced manner; the bottom of the upper motor shaft assembly is connected with the cylinder assembly; the upper welding head is eccentrically arranged at the top of the upper electrode shaft assembly through an upper welding head seat; the upper conductive part is arranged at the bottom of the air cylinder assembly and is conducted with the upper electrode shaft assembly; the lower conductive part is arranged at the piston extending end in the air cylinder assembly and is conducted with the lower electrode shaft assembly; the rotating block is connected with the bottom of the lower electrode shaft assembly. The upper welding head and the lower welding head conduct electric conduction and then are driven by the air cylinder assembly to conduct electric resistance welding, after a point position is welded, the rotating block drives the welding machine head to rotate by a set angle and then continues welding till the welding machine head rotates by a circle for welding, and welding efficiency and quality are high.

Description

Technical Field

[0001] The utility model relates to a welding machine head, in particular to a resistance welding machine head used for oil radiator fins. Background Art

[0002] Oil-filled radiator heaters are also called oil-filled heaters. The surface temperature of the cooling fins is uniform, and the heater is comfortable to use, dust-free, odor-free, noise-free, and does not emit visible light. Its application scenarios are flexible and varied, so it is widely used. The main heat dissipation body of the oil-filled radiator heater is the oil-filled radiator fin assembly.

[0003] like Figure 1 and Figure 2 As shown, currently when the oil radiator heat sink assembly is welded and formed, multiple oil radiator heat sinks 30 need to be welded together up and down. The existing welding methods either use manual insertion into the corresponding position for processing, which has low processing efficiency and cannot guarantee the quality, or use imported equipment from abroad, which has high cost and cannot meet the production and processing needs of small and medium-sized enterprises. Therefore, there is an urgent need for a welding head that is easy to operate and low in cost for welding multiple oil radiator heat sinks. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and to provide a resistance welding welding head for an oil radiator fin, which has fast and high welding efficiency, low production and processing costs and high practicality.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a resistance welding welding head for oil radiator fins, comprising:

[0006] Cylinder assembly;

[0007] A lower electrode shaft assembly is disposed in the cylinder assembly and is driven by the cylinder assembly to move up and down;

[0008] A lower welding head seat, eccentrically arranged on the top of the lower electrode shaft assembly, and a lower welding head is arranged on the lower welding head seat;

[0009] An upper electrode shaft assembly is sleeved on the outside of the lower electrode shaft assembly, and a space is provided between the upper motor shaft assembly and the lower electrode shaft assembly, and the bottom of the upper motor shaft assembly is connected to the cylinder assembly;

[0010] An upper welding head seat is eccentrically arranged on the top of the upper electrode shaft assembly, and an upper welding head is arranged on the upper welding head seat in an upper and lower direction opposite to the lower welding head;

[0011] An upper conductive component is disposed at the bottom of the cylinder assembly and is conductively connected to the upper electrode shaft assembly to transmit power to the upper welding head;

[0012] A lower conductive component is disposed at one end of the piston extending from the cylinder assembly and is conductively connected to the lower electrode shaft assembly;

[0013] The rotating block is connected to the bottom of the lower electrode shaft assembly, and the rotating block is used to drive the upper welding head and the lower welding head to rotate synchronously after being connected to an external rotating mechanism.

[0014] Furthermore, the cylinder assembly includes a cylinder barrel; the bottom of the cylinder barrel is in contact with the upper conductive component; a cylinder lower cover is provided at the bottom of the cylinder barrel; a piston is provided in the cylinder barrel and extends from the cylinder lower cover, a spring is provided on the piston, and the piston is connected to the lower electrode shaft assembly to drive the lower electrode shaft assembly to move up and down.

[0015] Furthermore, the lower electrode shaft assembly includes a lower electrode shaft; the lower electrode shaft is arranged through the cylinder assembly, the top of the lower electrode shaft is connected to the lower welding head seat, the middle and lower parts of the lower electrode shaft are the same as the lower conductive component through a lower connecting plate, and a lower insulating pad is also provided between the lower conductive component and the piston.

[0016] Furthermore, the upper motor shaft assembly includes a connecting sleeve that is sleeved on the outside of the lower electrode shaft, and the connecting sleeve and the lower electrode shaft are arranged in the air; the top of the connecting sleeve is connected to the upper welding head seat, and the bottom is connected to the upper connecting plate; the upper end of the upper connecting plate is connected to the upper conductive component, and the bottom is insulated from the cylinder assembly by an insulating pad.

[0017] Furthermore, a shielding plate for shielding slag is also provided on the top.

[0018] Furthermore, the bottom of the rotating block is connected to a stepping motor that drives the rotating block to rotate.

[0019] Furthermore, a water-cooling joint assembly is provided at the bottom of the lower electrode shaft assembly and is located below the lower conductive component. The water-cooling joint assembly is provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively connected to the internal water cooling pipe, and the water cooling pipe passes through the upper welding head and the lower welding head respectively.

[0020] Furthermore, the upper electrode shaft assembly also includes a guide sleeve sleeved outside the connecting sleeve.

[0021] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0022] The utility model discloses a resistance welding welding machine head for oil radiator heat sinks. The welding machine head is inserted into a point of two oil radiator heat sinks to be welded. The cylinder assembly drives the lower welding head to move up. The upper welding head and the lower welding head cooperate to clamp the part to be welded. Then, the upper welding head and the lower welding head are respectively electrically conductive through the upper conductive component and the lower conductive component. After the upper welding head and the lower welding head are electrically conductive, resistance welding is performed on the first point of the two oil radiator heat sinks. After the welding of the first point is completed, the rotating block drives the entire welding machine head to rotate at a set angle. The operation is repeated in sequence. After one rotation, the welding of the entire part is completed. The entire process is completed automatically. The welding efficiency and quality are high. The processing cost is low, which is in line with the batch production and processing of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0024] Figure 1 This is a structural diagram of the oil radiator heat sink after welding, which is a structural diagram of an embodiment of the utility model;

[0025] Figure 2 The schematic diagram of the structure of the two oil-filled radiator fins when the parts to be welded are separated

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0027] Figure 4 for Figure 3 An internal cross-sectional view of

[0028] Figure 5 It is a partial schematic diagram of an embodiment of the utility model;

[0029] Figure 6 for Figure 5 A schematic diagram of the structure from another perspective with a shielding plate;

[0030] Figure 7 It is a partial schematic diagram of another state of an embodiment of the utility model;

[0031] Figure 8 for Figure 7 A schematic diagram of the structure with a piston and a cold joint assembly;

[0032] Among them: cylinder assembly 1, lower electrode shaft assembly 2, lower welding head seat 3, upper electrode shaft assembly 4, upper welding head seat 5, upper conductive component 6, lower conductive component 7, rotating block 8, lower welding head 9, upper welding head 10, cylinder barrel 11, cylinder lower cover 12, piston 13, spring 14, lower electrode shaft 20, lower connecting plate 21, lower insulating pad 22, oil radiator heat sink 30, convex hole 31, lower insulating pad 32, connecting sleeve 40, upper connecting plate 41, upper insulating pad 42, cold joint assembly 50, water inlet 51, water outlet 52, guide sleeve 60, baffle 80, water cooling pipe 90. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0034] The utility model provides a resistance welding welding machine head for an oil radiator fin, so as to solve the problems of low processing efficiency and high processing cost in manual welding of an oil radiator fin assembly in the prior art.

[0035] based on Figure 1 to Figure 2 The utility model needs to perform resistance welding inside the upper and lower convex holes 31 on the multiple oil-filled radiator fins 30 arranged in the upper and lower layers.

[0036] For ease of understanding, the specific process in the embodiments of the present application is described below. Figures 3 to 5 A resistance welding welding head for an oil-filled radiator heat sink in an embodiment of the present application comprises a cylinder assembly 1, a lower electrode shaft assembly 2, a lower welding head seat 3, an upper electrode shaft assembly 4, an upper welding head seat 5, an upper conductive component 6 and a lower conductive component 7; the lower electrode shaft assembly 2 is arranged in the cylinder assembly 1, and is driven by the cylinder assembly 1 to move up and down; the lower welding head seat 3 is eccentrically arranged at the top of the lower electrode shaft assembly 2, and a lower welding head 9 is arranged on the top of the lower welding head seat 3; the upper electrode shaft assembly 4 is sleeved on the outside of the lower electrode shaft assembly 2, and the upper motor shaft assembly 4 is spaced from the lower electrode shaft assembly 2, and the bottom of the upper motor shaft assembly 4 is connected to the cylinder assembly 1; the upper welding head seat 5 is eccentrically arranged at the top of the upper electrode shaft assembly 2, and an upper welding head 10 arranged opposite to the lower welding head 9 is provided on the upper welding head seat 5.

[0037] The upper conductive component 6 is arranged at the bottom of the cylinder assembly 1 and is conductively connected to the upper electrode shaft assembly 4; the lower conductive component 7 is arranged at the end of the piston extending from the cylinder assembly 1 and is conductively connected to the lower electrode shaft assembly 2; the rotating block 8 is connected to the bottom of the lower electrode shaft assembly 2, and the rotating block 8 is used to drive the upper welding head 10 and the lower welding head 9 to rotate synchronously after being connected to an external stepping motor.

[0038] The utility model discloses a resistance welding welding head for oil radiator heat sinks. The welding head is inserted into the convex holes 31 of two oil radiator heat sinks 30. After the upper welding head and the lower welding head are conductive, the cylinder assembly 1 drives the lower welding head 9 to move upward. The upper welding head 10 and the lower welding head 9 cooperate to perform resistance welding on the convex hole connection of the two oil radiator heat sinks. The whole process is completed automatically, with high welding efficiency and quality and low processing cost, which is in line with the enterprise's mass production and processing.

[0039] In addition, the upper welding head 9 and the lower welding head 10 in this embodiment are eccentrically arranged on the top of the lower motor shaft 20, so that the welding position can be avoided.

[0040] based on Figures 4 to 8 In this embodiment, the cylinder assembly 1 includes a cylinder barrel 11; the bottom of the cylinder barrel 11 is in contact with the upper conductive component 6; a cylinder lower cover 12 is provided at the bottom of the cylinder barrel 11, a piston 13 is provided in the cylinder barrel 11 and passes through the cylinder lower cover 12, a spring 14 is sleeved on the piston 13, and the piston 13 is connected to the lower electrode shaft assembly 2. In this way, when the cylinder barrel 11 is filled with gas through the air inlet, the piston 13 is driven to move upward, and the spring 14 is compressed, and the piston 13 is connected to the lower electrode shaft assembly 2, so that the lower electrode shaft assembly 2 can be driven to move up and down, and when the lower electrode shaft assembly 2 moves upward, the lower welding head 9 is driven to move upward synchronously, thereby realizing resistance welding in which the lower welding head 9 and the upper welding head 10 work in cooperation.

[0041] based on Figures 5 to 7 The lower electrode shaft assembly 2 includes a lower electrode shaft 20; the lower electrode shaft 20 is arranged through the cylinder assembly 1, and the middle and lower parts of the lower electrode shaft 20 are connected to the piston 13, and when the piston 13 moves upward, it drives the lower electrode shaft 20 to move upward; the top of the lower electrode shaft 20 is connected to the lower welding head seat 4.

[0042] The lower electrode shaft 20 is connected to the lower conductive component 7 through a lower connecting plate 21; the lower conductive component 7 is located at the extended end of the piston, and a lower insulating pad 22 is provided between the lower conductive component 7 and the extended end of the piston to avoid transmitting current to the piston 13.

[0043] In this way, when the lower conductive component 7 is energized, the current is transmitted to the lower electrode shaft 30 through the lower connecting plate 31, and then transmitted to the lower welding head seat 4 through the lower electrode shaft 30, and finally transmitted to the lower welding head by the lower welding head seat 4. At the same time, the current generated by the lower conductive component 7 will not be transmitted to the piston 13.

[0044] based on Figure 4 and Figure 6 The upper motor shaft assembly 4 includes a connecting sleeve 40 sleeved outside the lower electrode shaft 20, and the connecting sleeve 40 and the lower electrode shaft 20 are arranged in the air; the top of the connecting sleeve 40 is connected to the upper welding head seat 5, and the bottom is connected to the upper connecting plate 41; the upper end of the upper connecting plate 41 is connected to the upper conductive component 6, and the bottom is insulated and contacted with the piston 13 in the cylinder assembly 1 through the upper insulating pad 42.

[0045] In this way, when the upper conductive component 6 is energized, the current is transmitted to the connecting sleeve 40 through the upper connecting plate 41, and then the connecting sleeve 40 transmits the current to the upper welding head seat 5. The upper welding head seat 5 finally transmits the current to the upper welding head 10. The setting of the insulating pad 42 can prevent the current from being transmitted downward through the piston 13.

[0046] Furthermore, a shielding plate 80 for shielding slag is provided at the bottom of the lower welding seat 3 and the upper welding seat 5, so as to prevent the slag generated during welding from falling directly downward.

[0047] Furthermore, the bottom of the rotating block 8 is connected to a stepper motor that drives the rotating block 8 to rotate. When the stepper electrode is working, the stepper motor drives the rotating block 8 to rotate. Since the rotating block 8 is connected to the lower electrode shaft 20, the lower electrode shaft 20 drives the entire machine to move, thereby driving the entire machine head to rotate, thereby realizing rotary welding of the product.

[0048] Furthermore, a water-cooling joint assembly 50 located below the lower conductive component 7 is provided at the bottom of the lower electrode shaft assembly 2, and a water inlet 51 and a water outlet 52 are provided on the water-cooling joint assembly, and the water inlet and the water outlet are respectively connected to the water cooling pipe 90 inside the machine head, and the water cooling pipe passes through the upper welding head 10 and the lower welding head 9 respectively, so that the upper welding head 10 and the lower welding head 9 can be cooled to ensure the normal use of both.

[0049] In addition, the upper electrode shaft assembly 2 further includes a guide sleeve 60 sleeved outside the connecting sleeve 40 .

[0050] Furthermore, the material of the upper conductive component 6 and the lower conductive component 7 of this embodiment is copper, which has good conductivity.

[0051] When doing specific work, based on Figure 1 and Figure 2As shown, the welding head welds the internal convex holes 31 of the oil-filled radiator fins 30 arranged in multiple layers.

[0052] First, place the machine head directly below the multi-layered oil-filled radiator fins 30, and at the same time connect the rotating block 8 to an external stepper motor. Then extend the machine head through the lifting mechanism to the welding position of the convex holes of the two corresponding oil-filled radiator fins of one layer. The lateral driving mechanism connected to the welding head drives the welding head to move horizontally for a distance, so that the position of the part to be welded is between the upper welding head 10 and the lower welding head 9.

[0053] Then the cylinder assembly 1 is ventilated, thereby driving the piston 13 to move upward, and at the same time the spring 14 is compressed. When the piston 14 moves upward, it simultaneously drives the lower electrode shaft 20 to move upward. When the lower electrode shaft 20 drives the lower welding head seat 3, it drives the lower welding head 9 to move upward synchronously, so that the welding part is pressed between the upper welding head 10 and the lower welding head 9.

[0054] Next, the upper conductive component 6 and the lower conductive component 7 are energized. The upper conductive component 6 directs the current to the connecting sleeve 40 through the upper connecting plate 41. The connecting sleeve 40 sends the current to the upper welding head 10 through the upper welding head seat 5. The lower conductive component 7 directs the current directly to the lower electrode shaft 20 through the lower connecting plate 21. The lower electrode shaft 20 directs the current to the lower welding head 9 through the lower welding head seat 3. In this way, the upper welding head 10 and the lower welding head 9 generate current and then perform resistance welding on the welded portion.

[0055] When the welding of one point of the welding part is completed, the stepper motor drives the entire head to rotate the set angle, and welds the welding part again. The above operation is repeated to complete a circle of welding of the welding part, thereby completing the welding.

[0056] When the welding of one part to be welded is completed, the machine head can be returned to its original position through the lateral drive mechanism, and then the machine head can be raised one layer by the lifting mechanism to complete the welding of another layer. The operation is repeated in sequence to complete the entire welding process.

[0057] In summary, the resistance welding head of the utility model can efficiently and safely weld the convex holes of the heat sink oil heater internally, is easy to operate and use, reduces labor costs and processing costs, and has high processing efficiency and yield rate.

[0058] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A resistance welding head for oil radiator fins, characterized in that: include: Cylinder assembly; A lower electrode shaft assembly is disposed in the cylinder assembly and is driven by the cylinder assembly to move up and down; A lower welding head seat, eccentrically arranged on the top of the lower electrode shaft assembly, and a lower welding head is arranged on the lower welding head seat; An upper electrode shaft assembly is sleeved on the outside of the lower electrode shaft assembly, and a space is provided between the upper electrode shaft assembly and the lower electrode shaft assembly, and the bottom of the upper electrode shaft assembly is connected to the cylinder assembly; An upper welding head seat is eccentrically arranged on the top of the upper electrode shaft assembly, and an upper welding head is arranged on the upper welding head seat in an upper and lower direction opposite to the lower welding head; An upper conductive component is disposed at the bottom of the cylinder assembly and is conductively connected to the upper electrode shaft assembly to transmit power to the upper welding head; A lower conductive component is disposed at one end of the piston extending from the cylinder assembly and is conductively connected to the lower electrode shaft assembly; The rotating block is connected to the bottom of the lower electrode shaft assembly. The rotating block is used to drive the upper welding head and the lower welding head to rotate synchronously after being connected to an external rotating mechanism.

2. The resistance welding head for oil radiator fins according to claim 1, characterized in that: The cylinder assembly includes a cylinder barrel; the bottom of the cylinder barrel is in contact with the upper conductive component; a cylinder lower cover is provided at the bottom of the cylinder barrel; a piston is provided in the cylinder barrel and extends from the cylinder lower cover, a spring is provided on the piston, and the piston is connected to the lower electrode shaft assembly to drive the lower electrode shaft assembly to move up and down.

3. The resistance welding head for oil radiator fins according to claim 1, characterized in that: The lower electrode shaft assembly includes a lower electrode shaft; the lower electrode shaft is arranged through the cylinder assembly, the top of the lower electrode shaft is connected to the lower welding head seat, the middle and lower parts of the lower electrode shaft are the same as the lower conductive component through the lower connecting plate, and a lower insulating pad is also provided between the lower conductive component and the piston.

4. The resistance welding head for oil radiator fins according to claim 1, characterized in that: The upper electrode shaft assembly includes a connecting sleeve which is sleeved outside the lower electrode shaft, and the connecting sleeve and the lower electrode shaft are arranged in the air; the top of the connecting sleeve is connected to the upper welding head seat, and the bottom is connected to the upper connecting plate; the upper end of the upper connecting plate is connected to the upper conductive component, and the bottom is insulated from the cylinder assembly by an insulating pad.

5. The resistance welding head for oil radiator fins according to claim 1, characterized in that: Shielding plates for shielding slag are also provided on the bottom of the lower welding head seat and the upper welding head seat.

6. The resistance welding head for oil radiator fins according to claim 1, characterized in that: The bottom of the rotating block is connected to a stepping motor which drives the rotating block to rotate.

7. The resistance welding head for oil radiator fins according to claim 1, characterized in that: A water-cooling joint assembly is also provided at the bottom of the lower electrode shaft assembly and is located below the lower conductive component. The water-cooling joint assembly is provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively connected to the internal water cooling pipe, and the water cooling pipe passes through the upper welding head and the lower welding head respectively.

8. The resistance welding head for oil radiator fins according to claim 4, characterized in that: The upper electrode shaft assembly also includes a guide sleeve sleeved outside the connecting sleeve.

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