Resistance welding device and resistance welding method for rotary transformer in oil immersion environment

Abstract

The invention discloses a resistance welding device and method for a rotary transformer in an oil immersion environment. The resistance welding device comprises a welding base, an oil storage pool is installed on the welding base, a welding support is installed in the oil storage pool and immersed in the oil storage pool, a first rotary transformer resistor is installed on the welding support, and a second rotary transformer resistor is installed on the first rotary transformer resistor. Oil in the oil storage pool submerges the first resolver resistor, a downward pressing mechanism is installed on the portion, above the oil storage pool, of the welding base, a welding machine head is installed on the downward pressing mechanism, a second resolver resistor is installed on the welding machine head, and the downward pressing mechanism drives the second resolver resistor on the welding machine head to move. And the first resolver resistor and the second resolver resistor are welded in oil. The rotary transformer resistance welding cleaning device can clean products during rotary transformer resistance welding, prevents the problems of splashing, line explosion and the like in the welding process, and meanwhile has the advantage of preventing welding spots from being oxidized after welding is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of resistance welding, and in particular to a resistance welding device and a resistance welding method for a resolver in an oil-immersed environment. Background Art

[0002] In the field of automation equipment, the welding of copper wire and copper plate requires a certain clamping force during the welding process because resistance welding itself is resistance heating welding. If the pressure is not enough, there will be air inside during welding, which will cause the welding wire to explode. If the pressure is too high, it will cause problems such as tangent and too deep molten pool. During resistance welding, due to high temperature heating, welding slag may splash and pollute the product, and underwater welding may cause rapid oxidation of the solder joint itself. At the same time, because the rotary transformer is a high-precision sensor unit, its cleanliness requirement is an important performance reference. In the past, the technology usually cleaned the product uniformly after it was offline to ensure its cleanliness, which undoubtedly increased its workload and process flow.

[0003] Therefore, how to solve the above-mentioned deficiencies in the prior art has become a subject to be studied and solved by the present invention. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a resistance welding device and a resistance welding method for a resolver in an oil-immersed environment.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A resolver resistor welding device in an oil-immersion environment comprises a welding base, an oil reservoir is installed on the welding base, a welding support is installed in the oil reservoir, the welding support is immersed in the oil reservoir, a first resolver resistor is installed on the welding support, the oil in the oil reservoir covers the first resolver resistor; a pressing mechanism is installed on the welding base above the oil reservoir, a welding head is installed on the pressing mechanism, a second resolver resistor is installed on the welding head, the pressing mechanism drives the second resolver resistor on the welding head to move, and the first resolver resistor and the second resolver resistor are welded in the oil.

[0007] Furthermore, a lower electrode is installed on the first resolver resistor, and an upper electrode is installed on the second resolver resistor.

[0008] Furthermore, one of the upper electrode and the lower electrode is a positive electrode, and the other is a negative electrode.

[0009] Furthermore, the upper electrode and the lower electrode are made of copper and copper alloy materials respectively.

[0010] Furthermore, the upper electrode and the lower electrode are in the shape of a sphere, a dome, a cone or a plane.

[0011] Furthermore, a positioning mechanism is installed on the welding base, and the positioning mechanism is used in conjunction with the pressing mechanism.

[0012] Furthermore, the pressing mechanism is a pressing cylinder.

[0013] In order to solve the above technical problems, the present application also provides a resolver resistance welding method in an oil-immersed environment, which is applied to the resolver resistance welding device in the oil-immersed environment as described above. The resolver resistance welding method in the oil-immersed environment comprises the following steps:

[0014] Step 1: Install the first resolver resistor on the welding support in the oil reservoir so that the oil in the oil reservoir covers the first resolver resistor and the lower electrode;

[0015] Step 2: Perform a pressing process to press the second resolver resistor to the first resolver resistor by pressing the cylinder downward;

[0016] Step 3: Perform a welding process to weld the upper electrode and the lower electrode through a welding head.

[0017] Compared with the prior art, the advantages of the present invention are: the product to be welded is cleaned by placing it in an oil storage tank, and then the welding head is driven by the downward pressure cylinder to press and weld the welding position of the product. During the discharge of the positive and negative electrodes, the oil body protects the welding position to prevent splashing and oxidation. The present application can clean the product during the resistance welding of the rotary transformer, prevent splashing, wire explosion and other problems during the welding process, and has the advantage of preventing oxidation of the weld point after the welding is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Attached Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0020] Reference numerals and component descriptions in the drawings:

[0021] 1. Welding base; 2. Oil storage tank; 3. Welding support; 4. First resolver resistor; 5. Lower electrode; 6. Pressing mechanism; 7. Welding head; 8. Second resolver resistor; 9. Upper electrode. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below through specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See attached Figure 1 As shown, a resolver resistor welding device in an oil-immersion environment of the present application comprises a welding base 1, an oil reservoir 2 is installed on the welding base 1, a welding support 3 is installed in the oil reservoir 2, the welding support 3 is immersed in the oil reservoir 2, a first resolver resistor 4 is installed on the welding support 3, the size of the oil reservoir 2 is larger than the size of the welding support 3 and the first resolver resistor 4, so that the oil in the oil reservoir 2 can cover the first resolver resistor 4, and a lower electrode 5 is installed on the first resolver resistor 4. A pressing mechanism 6, i.e., a pressing cylinder, is installed on the welding base 1 above the oil reservoir 2, a welding machine head 7 is connected to the pressing cylinder, and the pressing cylinder drives the welding machine head 7 to move, and a positioning mechanism is installed on the welding base 1, and the positioning mechanism cooperates with the pressing cylinder to limit the pressing position of the pressing cylinder. The second resolver resistor 8 is installed on the welding head 7, and the upper electrode 9 is installed on the second resolver resistor 8. The pressing mechanism 6 drives the second resolver resistor 8 on the welding head 7 to move, and the pressing mechanism 6 presses the second resolver resistor 8 to the first resolver resistor 4 in the oil reservoir 2. The first resolver resistor 4 and the second resolver resistor 8 are welded in the oil by the welding head 7. The present application cleans the product to be welded by placing it in the oil reservoir 2, and then the welding head 7 is driven by the pressing cylinder to press and weld the welding position of the product. During the discharge of the positive and negative electrodes, the oil body protects the welding position to prevent splashing and oxidation. The present application can clean the product during the rotary transformer resistance welding, prevent splashing, wire blowing and other problems during the welding process, and has the advantage of preventing the oxidation of the weld point after the welding is completed.

[0024] For better, see the attached Figure 1 As shown, in this embodiment, one of the upper electrode 9 and the lower electrode 5 is a positive electrode, and the other is a negative electrode.

[0025] For better, see the attached Figure 1 As shown, the upper electrode 9 and the lower electrode 5 of this embodiment are made of copper and copper alloy materials respectively.

[0026] For better, see the attached Figure 1 As shown, the shapes of the upper electrode 9 and the lower electrode 5 of this embodiment are spherical, dome-shaped, conical or flat.

[0027] A method for resistance welding of a resolver in an oil-immersion environment, comprising:

[0028] Step 1: Install the first resolver resistor 4 onto the welding support 3 in the oil reservoir 2 so that the oil in the oil reservoir 2 covers the first resolver resistor 4 and the lower electrode 5;

[0029] Step 2: Perform a pressing process to press the second resolver resistor 8 onto the first resolver resistor 4 by pressing down the cylinder;

[0030] Step 3: Perform welding process, welding the upper electrode 9 and the lower electrode 5 by welding the welding head 7. The present application solves the problem of the stability of the rotary transformer during resistance welding and the easy oxidation of the welding point of the product. At the same time, it solves the problem of how to ensure the cleanliness of the rotary transformer during the manufacturing process.

[0031] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A resolver resistance welding device in an oil-immersed environment, characterized in that: The invention comprises a welding base, wherein an oil reservoir is installed on the welding base, a welding support is installed in the oil reservoir, the welding support is immersed in the oil reservoir, a first resolver resistor is installed on the welding support, and the oil in the oil reservoir covers the first resolver resistor; a pressing mechanism is installed on the welding base above the oil reservoir, a welding head is installed on the pressing mechanism, a second resolver resistor is installed on the welding head, the pressing mechanism drives the second resolver resistor on the welding head to move, and the first resolver resistor and the second resolver resistor are welded in the oil.

2. The resolver resistance welding device in an oil-immersion environment according to claim 1, characterized in that: A lower electrode is mounted on the first resolver resistor, and an upper electrode is mounted on the second resolver resistor.

3. The resolver resistance welding device in an oil-immersion environment according to claim 2, characterized in that: One of the upper electrode and the lower electrode is a positive electrode, and the other is a negative electrode.

4. The resolver resistance welding device in an oil-immersion environment according to claim 2, characterized in that: The upper electrode and the lower electrode are made of copper and copper alloy materials respectively.

5. The resolver resistance welding device in an oil-immersion environment according to claim 2, characterized in that: The upper electrode and the lower electrode are in the shape of a sphere, a dome, a cone or a plane.

6. The resolver resistance welding device in an oil-immersion environment according to claim 1, characterized in that: A positioning mechanism is installed on the welding base, and the positioning mechanism is used in conjunction with the pressing mechanism.

7. The resolver resistance welding device in an oil-immersion environment according to claim 1, characterized in that: The pressing mechanism is a pressing cylinder.

8. A method for welding a resolver resistance in an oil-immersion environment, comprising the device for welding a resolver resistance in an oil-immersion environment according to any one of claims 1 to 7, characterized in that: The resolver resistance welding method in an oil-immersion environment comprises the following steps: Step 1: Install the first resolver resistor on the welding support in the oil reservoir so that the oil in the oil reservoir covers the first resolver resistor and the lower electrode; Step 2: Perform a pressing process to press the second resolver resistor to the first resolver resistor by pressing the cylinder downward; Step 3: Perform a welding process to weld the upper electrode and the lower electrode through a welding head.

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