A laser welding machine for alloy resistance

Abstract

This invention discloses a laser welding machine for alloy resistors, belonging to the field of resistor processing technology. The laser welding machine for alloy resistors includes a laser welding device, which includes a welding torch, a housing, a resistor anti-deviation unit, a height adjustment component, and a welding feed component. The laser welding device is used to weld the resistor body. The resistor body includes a first conductive plate, a second conductive plate, and a third conductive plate. A first welding area is provided at the contact point between the first and second conductive plates, and a second welding area is provided at the contact point between the second and third conductive plates. This invention provides a laser welding machine for alloy resistors where two laser welding devices cooperate to perform intermittent spot welding on the two first and second welding areas of the resistor body, completing the welding of the entire resistor body without requiring multiple devices to operate simultaneously.

Description

Technical Field

[0001] This invention belongs to the field of resistance processing technology, specifically relating to a laser welding machine for alloy resistors. Background Technology

[0002] Alloy resistors have a relatively simple structure, typically consisting of a resistive element, leads, and encapsulation material. The resistive element is the core component of the alloy resistor, determining its performance and parameters; the leads are used to connect the resistive element to other circuit components.

[0003] Some alloy resistors consist of a resistive element composed of multiple conductive plates stacked vertically. Therefore, during the welding process, spot welding is required at the connection points of the multiple conductive plates. Typically, two conductive plates are welded on a single welding machine, and then the resulting composite conductive plate is welded to the remaining conductive plates. This process requires multiple welding machines and multiple steps to complete the welding of the resistor, making it cumbersome and time-consuming. Therefore, this application proposes a laser welding machine for alloy resistors. Summary of the Invention

[0004] The purpose of this invention is to provide a laser welding machine for alloy resistors to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a laser welding machine for alloy resistors, comprising a laser welding device, wherein the laser welding device includes a gun head, a housing, and further includes a height adjustment component and a welding feed component;

[0006] The laser welding device is used to weld the resistor body;

[0007] The resistor body includes a first conductive plate, a second conductive plate, and a third conductive plate. A first welding area is provided at the joint between the first conductive plate and the second conductive plate, and a second welding area is provided at the joint between the second conductive plate and the third conductive plate.

[0008] The height adjustment component is used to adjust the height of the welding gun head, so that the welding gun head has an upper welding state and a lower welding state. When the welding gun head is in the upper welding state, the welding gun head is flush with the first welding area. When the welding gun head is in the lower welding state, the welding gun head is flush with the second welding area.

[0009] The welding feed assembly is used to adjust the distance between the welding torch head and the resistor body.

[0010] In a further technical solution, the first conductive plate, the second conductive plate, and the third conductive plate are stacked vertically aligned.

[0011] In a further technical solution, a heat dissipation device is provided on the housing, and the heat dissipation device is located on the top of the housing. The heat dissipation device includes heat dissipation fins and a heat dissipation fan.

[0012] A further technical solution also includes a resistor anti-offset unit, wherein at least two resistor anti-offset units are provided, with the two resistor anti-offset units located on both sides of the gun head respectively.

[0013] In a further technical solution, the resistor anti-offset unit includes multiple anti-offset components, and the anti-offset components are provided with a support plate, a rotating shaft, a sleeve, a baffle, and a connector.

[0014] In a further technical solution, each of the anti-deviation components has two rotating shafts and two sleeves. The sleeve is fitted on the outside of the rotating shaft, and the sleeve and the rotating shaft are rotatably connected by a bearing. The rotating shaft is inserted into the support plate. Baffles are inserted at the top and bottom of the rotating shaft. The two baffles are located on the upper and lower sides of the sleeve, respectively. The top and bottom of the rotating shaft are provided with threaded parts, and the joint is connected to the threaded parts by threads.

[0015] In a further technical solution, the connector and the baffle are designed as an integrated unit, with the two baffles located on the upper and lower sides of the resistor body, respectively.

[0016] In a further technical solution, the height adjustment assembly includes a first telescopic rod, a top plate, a guide frame, and a vertical plate. A base plate is provided at the bottom of the first telescopic rod, and the first telescopic rod is installed on the base plate. The output end of the first telescopic rod is connected to the top plate, and the top plate is connected to the guide frame. The guide frame consists of two guide frames connected by a vertical plate.

[0017] In a further technical solution, two laser welding devices, a height adjustment component, and a welding feed component are provided, and the two laser welding devices are located on both sides of the resistor body.

[0018] In a further technical solution, the welding feed assembly includes a second telescopic rod, a moving frame, and a moving plate. The second telescopic rod is mounted on the base plate, and its output end is connected to the moving frame. The moving frame is connected to the moving plate, and there are two moving plates, each of which cooperates with a guide frame. The moving plate is connected to the housing.

[0019] Beneficial effects:

[0020] This invention provides a laser welding machine for alloy resistors. A height adjustment component adjusts the height of the welding torch, allowing it to operate in both an upper and lower welding state. In the upper welding state, the torch is flush with the first welding area; in the lower welding state, it is flush with the second welding area. A welding feed component moves the torch in the upper welding state towards or away from the first welding area. When the torch reaches the first welding area, spot welding is performed using a laser welding device. Simultaneously, the welding feed component moves the torch in the lower welding state towards or away from the second welding area. When the torch is moved to the second welding area, spot welding is performed there. The two laser welding devices work together to perform intermittent spot welding on the two welding areas (first and second) of the resistor body, completing the welding of the entire resistor body without requiring multiple devices to operate simultaneously.

[0021] The present invention provides a laser welding machine for alloy resistors, wherein the resistor body inside rests against a sleeve, and the sleeve is connected to the rotating shaft by a bearing. During the process of the first winding roller, the second winding roller, and the third winding roller pulling the resistor body to move, the sleeve rotates together, which can guide the resistor body while reducing the mutual wear between the sleeve and the resistor body. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the laser welding machine used for alloy resistors in this invention.

[0023] Figure 2 This is a schematic diagram of the structure of the first take-up roller, the second take-up roller, and the third take-up roller in this invention.

[0024] Figure 3 This is a side view of the laser welding machine used for alloy resistors in this invention.

[0025] Figure 4 For the present invention Figure 3 A magnified structural diagram of point A in the middle.

[0026] Figure 5 This is a front view of the laser welding machine used for alloy resistors in this invention.

[0027] Figure 6 This is a schematic diagram of the height adjustment component and welding feed component in this invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Laser welding device; 101. Gun head; 102. Heat dissipation device; 103. Housing; 2. Resistor body; 201. First conductive plate; 202. Second conductive plate; 203. Third conductive plate; 3. First take-up roller; 4. Second take-up roller; 5. Third take-up roller;

[0030] 6. Resistor anti-offset unit; 601. Support plate; 602. Rotating shaft; 603. Sleeve; 604. Baffle; 605. Connector;

[0031] 7. Height adjustment assembly; 701. First telescopic rod; 702. Top plate; 703. Guide frame; 8. Welding feed assembly; 801. Second telescopic rod; 802. Moving frame; 803. Moving plate. Detailed Implementation

[0032] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0033] Alloy resistors are electronic components made of metal and semiconductor materials. They have the characteristics of low resistance and high power, and play an important role in circuits.

[0034] Structural characteristics: Alloy resistors have a relatively simple structure, typically consisting of a resistive element, leads, and encapsulation material. The resistive element is the core component of the alloy resistor, determining its performance and parameters; the leads connect the resistive element to other circuit components; and the encapsulation material protects the resistive element and leads.

[0035] like Figures 1-6 As shown in the figure, an embodiment of the present invention provides a laser welding machine for alloy resistors, including a laser welding device 1, a first take-up roller 3, a second take-up roller 4, a third take-up roller 5, a resistor anti-deviation unit 6, a height adjustment component 7, and a welding feed component 8.

[0036] Specifically, the laser welding device 1 is used to weld the resistor body 2;

[0037] For reference Figure 1 The resistor body 2 includes a first conductive plate 201, a second conductive plate 202, and a third conductive plate 203. The first conductive plate 201, the second conductive plate 202, and the third conductive plate 203 are stacked in an aligned manner. Two first welding areas are provided at the contact surfaces of the first conductive plate 201 and the second conductive plate 202, and two second welding areas are provided at the contact surfaces of the second conductive plate 202 and the third conductive plate 203.

[0038] Specifically, the laser welding device 1 includes a gun head 101 and a housing 103. A heat dissipation device 102 is provided on the housing 103 and is located on the top of the housing 103. The heat dissipation device 102 includes heat dissipation fins and a cooling fan. The airflow from the cooling fan is directed at the heat dissipation fins to dissipate the heat generated during the operation of the laser welding device 1, thereby preventing the laser welding device 1 from overheating.

[0039] In order to simultaneously convey the first conductive plate 201, the second conductive plate 202, and the third conductive plate 203, the first winding roller 3, the second winding roller 4, and the third winding roller 5 are respectively wound and unwound with the first conductive plate 201, the second conductive plate 202, and the third conductive plate 203, and the first winding roller 3, the second winding roller 4, and the third winding roller 5 rotate synchronously.

[0040] To achieve synchronous rotation of the first take-up roller 3, the second take-up roller 4, and the third take-up roller 5, the following methods can be used:

[0041] Use the same power supply: Ensure that all motors are powered by the same power source to keep their speeds consistent.

[0042] Using a rotary encoder or gyroscope: By measuring the actual speed of the motor, the difference between the actual speed and the target speed is calculated, and the motor's voltage or current is adjusted accordingly to achieve synchronization. This method is commonly used in industrial automation and robotics.

[0043] Using a servo drive: The servo drive has a built-in PID controller that can adjust the motor voltage according to the difference between the given target speed and the actual speed, thereby achieving synchronization.

[0044] The resistor anti-offset unit 6 is used to limit the movement direction of the resistor body 2 and prevent the resistor body 2 from falling out of position.

[0045] Specifically, at least two resistor anti-offset units 6 are provided, with the two resistor anti-offset units 6 located on both sides of the gun head 101 respectively.

[0046] More specifically, the resistor anti-offset unit 6 includes multiple anti-offset components. Each anti-offset component contains a support plate 601, a rotating shaft 602, a sleeve 603, a baffle 604, and a connector 605. Each anti-offset component contains two rotating shafts 602 and two sleeves 603. The sleeve 603 is fitted onto the outside of the rotating shaft 602, and the sleeve 603 and the rotating shaft 602 are rotatably connected via bearings. The rotating shaft 602 is inserted into the support plate 601. Baffles 604 are inserted into the top and bottom of the rotating shaft 602, and the two baffles 604 are located on the upper and lower sides of the sleeve 603, respectively. The top and bottom of the rotating shaft 602 are provided with threaded portions, and the connector 605 is connected to the threaded portions via threads. The connector 605 and the baffle 604 are integrated into one unit, and the two baffles 604 are located on the upper and lower sides of the resistor body 2, respectively.

[0047] The height of the adjustable baffle 604 is adjusted by rotating joint 605, and the distance between the two baffles 604 is also adjusted accordingly. The resistor body 2 is located between the two baffles 604, and the two end faces of the resistor body 2 are close to the two baffles 604 respectively. In this way, the resistor body 2 is always between the two baffles 604 and the resistor body 2 is pressed against the sleeve 603. The sleeve 603 is connected to the rotating shaft 602 through a bearing. When the first winding roller 3, the second winding roller 4, and the third winding roller 5 pull the resistor body 2 to move, the sleeve 603 rotates together, which can guide the resistor body 2 while reducing the mutual wear between the sleeve 603 and the resistor body 2. The adjustment of the distance between the baffles 604 allows the resistor anti-deviation unit 6 to adapt to the guiding work of resistor bodies 2 of various thicknesses, as long as the first welding area and the second welding area are located in the position of the sleeve 603, and the first conductive plate 201 and the second conductive plate 202 do not exceed the sleeve 603 by too much distance.

[0048] Further details can be found by referring to... Figure 6 The height adjustment component 7 is used to adjust the height of the welding torch 101, so that the welding torch 101 has an upper welding state and a lower welding state. When the welding torch 101 is in the upper welding state, the welding torch 101 is flush with the first welding area. When the welding torch 101 is in the lower welding state, the welding torch 101 is flush with the second welding area.

[0049] Specifically, the height adjustment component 7 includes a first telescopic rod 701, a top plate 702, a guide frame 703, and a vertical plate. The bottom of the first telescopic rod 701 is provided with a base plate, and the first telescopic rod 701 is mounted on the base plate. The output end of the first telescopic rod 701 is connected to the top plate 702, and the top plate 702 is connected to the guide frame 703. The guide frame 703 has two guide frames 703 connected by a vertical plate.

[0050] It should be noted that there are two laser welding devices 1, two height adjustment components 7, and two welding feed components 8, and the two laser welding devices 1 are located on both sides of the resistor body 2.

[0051] The height adjustment component 7 is used to adjust the height of the welding torch 101, allowing it to have an upper welding state and a lower welding state. When the torch 101 is in the upper welding state, it is flush with the first welding area. When the torch 101 is in the lower welding state, it is flush with the second welding area. With the help of the welding feed component 8, the torch 101 in the upper welding state can be moved toward or away from the first welding area. When the torch 101 reaches the first welding area, spot welding is performed by the laser welding device 1. At the same time, the welding feed component 8 can move the torch 101 in the lower welding state toward or away from the second welding area. The welding feed component 8 moves the torch 101 to the second welding area, where spot welding can be performed. The two laser welding devices 1 work together to perform intermittent spot welding on the two first and second welding areas in the resistor body 2, completing the welding work of the entire resistor body 2 without the need for multiple devices to operate simultaneously.

[0052] Furthermore, in order to enable the movement of the gun head 101, the welding feed assembly 8 is used to adjust the distance between the gun head 101 and the resistor body 2.

[0053] Specifically, the welding feed assembly 8 includes a second telescopic rod 801, a movable frame 802, and a movable plate 803. The second telescopic rod 801 is mounted on the base plate, and its output end is connected to the movable frame 802. The movable frame 802 is connected to the movable plate 803. There are two movable plates 803, and each movable plate 803 is respectively engaged with two guide frames 703. It should be noted that the movable plate 803 and the guide frame 703 can only move relative to each other in the left and right directions. The movable plate 803 is connected to the housing 103.

[0054] In summary, this invention provides a laser welding machine for alloy resistors. A height adjustment component 7 adjusts the height of the welding torch 101, allowing it to operate in an upper welding state and a lower welding state. In the upper welding state, the torch 101 is flush with the first welding area; in the lower welding state, it is flush with the second welding area. The welding feed component 8 moves the torch 101 from the first welding area to the upper welding area. When the torch 101 reaches the first welding area, spot welding is performed by the laser welding device 1. Simultaneously, the welding feed component 8 moves the torch 101 from the second welding area to the lower welding area. Moving the torch 101 to the second welding area allows for spot welding. The two laser welding devices 1 work together to perform intermittent spot welding on the two first and second welding areas of the resistor body 2, completing the welding of the entire resistor body 2 without requiring multiple devices to operate simultaneously.

[0055] The height of the adjustable baffle 604 is adjusted by rotating joint 605, and the distance between the two baffles 604 is also adjusted accordingly. The resistor body 2 is located between the two baffles 604, and the two end faces of the resistor body 2 are close to the two baffles 604 respectively. In this way, the resistor body 2 is always between the two baffles 604 and the resistor body 2 abuts against the sleeve 603. The sleeve 603 is connected to the rotating shaft 602 through a bearing. When the first take-up roller 3, the second take-up roller 4, and the third take-up roller 5 pull the resistor body 2 to move, the sleeve 603 rotates together, which can guide the resistor body 2 while reducing the mutual wear between the sleeve 603 and the resistor body 2.

[0056] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A laser welding machine for alloyed resistance, comprising a laser welding device (1) which comprises a gun head (101), a housing (103), characterized in that, Also include height adjustment assembly (7), welding feeding assembly (8); The laser welding device (1) is used for welding the resistance body (2); The resistance body (2) includes first conductive plate (201), second conductive plate (202), third conductive plate (203), first conductive plate (201) and second conductive plate (202) are provided with first welding area at the joint, and second conductive plate (202) and third conductive plate (203) are provided with second welding area at the joint. The height adjustment assembly (7) is used for adjusting the height of the gun head (101), so that the gun head (101) has an upper welding state and a lower welding state, when the gun head (101) is in the upper welding state, the gun head (101) is flush with the first welding area, and when the gun head (101) is in the lower welding state, the gun head (101) is flush with the second welding area. The welding feeding assembly (8) is used for adjusting the distance between the gun head (101) and the resistance body (2). Also include resistance anti-offset unit (6), the resistance anti-offset unit (6) is provided with at least two, wherein two resistance anti-offset units (6) are located on both sides of the gun head (101) respectively. The resistance anti-offset unit (6) includes a plurality of anti-offset assemblies, and the anti-offset assembly is provided with a support plate (601), a rotating shaft (602), a sleeve (603), a baffle (604) and a joint (605). The rotating shaft (602) and the sleeve (603) in the single anti-offset assembly are provided with two, the sleeve (603) is sleeved on the outside of the rotating shaft (602), and the sleeve (603) and the rotating shaft (602) are rotatably connected through the bearing, the rotating shaft (602) is inserted into the support plate (601), the top and bottom of the rotating shaft (602) are inserted with the baffle (604), the two baffles (604) are located on the upper and lower sides of the sleeve (603), the top and bottom of the rotating shaft (602) are provided with threaded portions, and the joint (605) is connected with the threaded portions through threads. The joint (605) and the baffle (604) are designed in one, and the two baffles (604) are located on the upper and lower sides of the resistance body (2). The height of the adjustable baffle (604) is adjusted through the rotating joint (605), the distance between the two baffles (604) is also adjusted, the resistance body (2) is located between the two baffles (604), and the two end faces of the resistance body (2) are close to the two baffles (604), so that the resistance body (2) is always between the two baffles (604), and the resistance body (2) abuts against the sleeve (603), the sleeve (603) and the rotating shaft (602) are connected through the bearing, in the process that the first winding roller (3), the second winding roller (4) and the third winding roller (5) pull the resistance body (2) to move, the sleeve (603) rotates together, which can guide the resistance body (2) while reducing the mutual abrasion between the sleeve (603) and the resistance body (2), and the adjustment of the distance between the baffles (604) enables the resistance anti-offset unit (6) to adapt to the guiding work of resistance bodies (2) with various thicknesses.

2. A laser welder for alloyed resistance as claimed in claim 1, characterized in that, The first conductive plate (201), the second conductive plate (202) and the third conductive plate (203) are arranged in a stack from top to bottom.

3. A laser welder for alloyed resistance as claimed in claim 1, characterized in that, The shell (103) is provided with a heat dissipation device (102), the heat dissipation device (102) is arranged on the top of the shell (103), and the heat dissipation device (102) comprises heat dissipation fins and a heat dissipation fan.

4. A laser welder for alloy resistors as defined in claim 1, wherein, The height adjusting assembly (7) comprises a first telescopic rod (701), a top plate (702), a guide frame (703) and a vertical plate, the first telescopic rod (701) is provided with a first bottom plate at the bottom, the first telescopic rod (701) is installed on the first bottom plate, the output end of the first telescopic rod (701) is connected with the top plate (702), the top plate (702) is connected with the guide frame (703), and the guide frame (703) is provided with two guide frames (703).

5. A laser welder for alloy resistors as defined in claim 1, wherein, The laser welding device (1), the height adjusting assembly (7) and the welding feeding assembly (8) are all provided with two, and the two laser welding devices (1) are respectively located on the two sides of the resistance body (2).

6. A laser welder for alloyed resistance as claimed in claim 1, characterized in that, The welding feeding assembly (8) comprises a second telescopic rod (801), a moving frame (802) and a moving plate (803), the second telescopic rod (801) is arranged on a second bottom plate, the output end of the second telescopic rod (801) is connected with the moving frame (802), the moving frame (802) is connected with the moving plate (803), the moving plate (803) is provided with two, and the two moving plates (803) are respectively matched with the two guide frames (703), and the moving plate (803) is connected with the shell (103).

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