Resistance welding device

Abstract

The utility model provides a resistance welding device which comprises a lower welding part and an upper welding part, the lower welding part is provided with two grooves, the grooves are used for containing pins, the upper welding part is provided with a welding head, and the welding head can extend into the grooves. The upper welding part can move in the vertical direction and the horizontal direction, and a welding head of the upper welding part can sequentially stretch into the two grooves through vertical movement or horizontal movement so as to weld the two pins. The resistor welding device is used for welding a resistor and an electronic device together. The resistor comprises a resistor body and two pins arranged side by side. According to the resistor welding device, the welding head is arranged, and the two pins of the resistor are welded twice through vertical movement and horizontal movement of the welding head, so that the problem that when the resistor is welded, due to the fact that the lap joint positions of the pins of the resistor and the pins of an electronic device are inconsistent, one pin is firmly welded, and the other pin is subjected to insufficient welding is solved.

Description

Technical Field

[0001] The utility model relates to a welding device, in particular to a resistance welding device used for welding resistors and electronic devices. Background Art

[0002] Resistors, as electronic components, are widely used in electrical products. During the manufacturing process of these products, resistors need to be soldered to circuit boards or other components. However, due to the small size of resistors, soldering is often done manually, resulting in low soldering efficiency. Furthermore, with rising labor costs, manual soldering leads to high manufacturing costs.

[0003] On existing production lines, automated equipment is urgently needed to solder resistors. Common thermistors have two pins arranged side by side. To improve soldering efficiency, the upper and lower soldering sections are each equipped with two soldering positions, each of which simultaneously solders both resistor pins. However, the overlapping positions of the resistor pins and the electronic device pins are inconsistent, which can lead to one pin being securely soldered while the other is poorly soldered. Therefore, a soldering device that ensures a secure soldering of both resistor pins is urgently needed. Utility Model Content

[0004] The purpose of the utility model is to provide a resistance welding device, which can firmly weld two pins of a resistor in an automated manner.

[0005] To achieve the above objectives, the present invention provides a resistance welding device comprising a lower welding portion and an upper welding portion. The lower welding portion comprises two grooves for accommodating the pins, and the upper welding portion comprises a welding head that can be inserted into the grooves. The upper welding portion is movable in both vertical and horizontal directions, and the welding head of the upper welding portion can sequentially extend into the two grooves by moving up and down or horizontally to weld the two pins. The present invention provides a resistance welding device for welding resistors and electronic devices together. The resistor comprises a resistor body and two pins arranged side by side.

[0006] The resistance welding device of the utility model is provided with a welding head, and welds the two pins of the resistor in two steps by moving the welding head up and down and horizontally, thereby avoiding the problem that one pin is firmly welded while the other pin is poorly welded due to the inconsistent overlapping positions of the pins of the resistor and the pins of the electronic device during the resistance welding.

[0007] In one embodiment, the resistance welding device further includes a longitudinal slider, a transverse slider, and a fixed frame, wherein the upper welding portion is disposed on the longitudinal slider; the longitudinal slider is mounted on the transverse slider and can move up and down along the transverse slider; and the transverse slider is mounted on the fixed frame and can move horizontally along the fixed frame. By providing the longitudinal slider and the transverse slider, the upper welding head can move in two degrees of freedom.

[0008] In one embodiment, the resistance welding device includes a first driving part and a second driving part, the first driving part is used to drive the longitudinal slider to move up and down, and the second driving part is used to drive the transverse slider to move horizontally.

[0009] In one embodiment, the resistance welding device includes a guide sleeve and a slide rod, the guide sleeve is installed on a longitudinal slider, and the slide rod can move up and down along the guide sleeve; the upper welding part is installed at the lower end of the slide rod.

[0010] In one embodiment, a pressure sensor is provided at the upper end of the slide bar, and the pressure sensor is used to measure the welding pressure of the resistance welding. By providing the pressure sensor, the welding pressure applied by the welding head to the pin during welding can be ensured, thereby ensuring that the pin can be welded firmly.

[0011] In one embodiment, a compression spring is provided between the pressure sensor and the guide sleeve, and the compression spring is sleeved on the slide rod to apply elastic force to the slide rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of a resistance welding device according to one embodiment of the present invention.

[0013] Figure 2 yes Figure 1 The resistance welding device shown is a perspective view with partial structure removed.

[0014] Figure 3 It is a schematic diagram of the resistor used for welding in the resistance welding device of the present invention.

[0015] Figure 4 yes Figure 2 A partially enlarged perspective view of the resistance welding device shown.

[0016] Figure 5 yes Figure 4 Another partially enlarged front view of the resistance welding device is shown. DETAILED DESCRIPTION

[0017] The structure and other aspects of the resistance welding device of the present invention will be further described in detail below through specific implementations and with reference to the accompanying drawings.

[0018] like Figure 1 and Figure 2 As shown, the resistance welding device of the present invention includes a longitudinal slider 1, a transverse slider 2, a fixing frame 3, an upper welding portion 4, and a lower welding portion 5. The lower welding portion 5 remains fixed, and the upper welding portion 4 is mounted on the longitudinal slider 1. The longitudinal slider 2 is movably mounted on the transverse slider 2, and the transverse slider 2 is movably mounted on the fixing frame 3. The longitudinal slider 1 can move up and down along the transverse slider 2 under the drive of a first drive unit 11. The transverse slider 2 can move horizontally along the fixing frame 3 under the drive of a second drive unit 21.

[0019] In a specific embodiment, the second driving unit 21 is mounted on the fixed frame 3, which is provided with a slide rail. Accordingly, the transverse slider 2 is provided with a slide groove. The transverse slider 2 can move horizontally on the fixed frame 3 through the cooperation of the slide rail and the slide groove. The first driving unit 11 is mounted on the transverse slider 2. The transverse slider 2 is provided with a slide rail. Accordingly, the longitudinal slider 1 is provided with a slide groove. The longitudinal slider 1 can move up and down on the transverse slider 2 through the cooperation of the slide rail and the slide groove.

[0020] like Figure 3 As shown, the resistor 6 for welding by the resistance welding device of the present invention includes a resistor body 61 and two pins 62 arranged side by side. The resistance welding device of the present invention is used to weld the pins 62 of the resistor 6 and the pins of other electronic devices together by resistance welding.

[0021] like Figure 4 As shown, the resistance welding device of the present invention includes a guide sleeve 41 and a slide rod 42. The slide rod 42 is slidable within the guide sleeve 41. The guide sleeve 41 is fixedly mounted on the longitudinal slider 1 and can move up and down with the longitudinal slider 1. The upper welding portion 4 is mounted on the lower end of the slide rod 42 and can move up and down with the slide rod 42. The lower welding portion 5 remains fixed.

[0022] In a specific embodiment, the resistance welding device of the present invention is provided with two slide bars 42, and four guide sleeves are provided corresponding to the two slide bars 42. A pressure sensor 44 is provided on one of the slide bars 42, and a compression spring 45 is provided between the pressure sensor 44 and the guide sleeve 41. The compression spring 45 is sleeved on the slide bar 42. When the longitudinal slider 1 drives the guide sleeve 41 to move toward the lower welding portion 5, the slide bar 42 and the upper welding portion 4 also move toward the lower welding portion 5 together. Because the compression spring 45 is provided between the pressure sensor 44 and the guide sleeve 41, the upper welding portion 4 installed at the lower end of the slide bar 42 needs to overcome the elastic force of the compression spring 45 when contacting the lower welding portion 5, so that the upper welding portion 4 can apply a certain amount of pressure to the lower welding portion 5.

[0023] like Figure 5As shown, according to one embodiment, the upper welding portion 4 has a welding head 46, and the lower welding portion 5 has two grooves 51, and the two grooves 51 are respectively used to accommodate the two pins 62 of the resistor 6. In a specific embodiment, the groove 51 is V-shaped. The welding head 46 can be extended into the two grooves 51 in sequence by moving up and down and horizontally, thereby welding the resistor pins and the pins of the electronic device located in the two grooves 51. The resistance welding device of the present invention is provided with a welding head 46 and two grooves 46. During welding, only one pin can be welded at a time, and the welding of the two pins is completed by two welding operations. This can avoid the defect that one of the pins may be poorly welded when welding two pins at the same time.

[0024] During operation, the resistor welding device of the present invention places the pins 62 of the resistor 6 and the pins of the electronic device within the two grooves 51 of the lower welding section 5. The first drive unit 11 drives the longitudinal slider 1 toward the lower welding section 5. The welding head 46 of the upper welding section 4 extends into one of the grooves 51 of the lower welding section 5. The slide rod 42 slides within the guide sleeve 41. Due to the presence of the compression spring 45, the welding pressure exerted by the welding head 46 on the pins is fed back to the pressure sensor 44. When the welding pressure reaches a predetermined value, the first drive unit 11 stops driving the longitudinal slider 1 downward. The first drive unit 11 then drives the longitudinal slider 1 away from the lower welding section 5. The second drive unit 21 drives the transverse slider 2 horizontally until the welding head 46 reaches the other groove 51. The first drive unit 11 again drives the longitudinal slider 1 toward the lower welding section 5. The welding head 46 of the upper welding section 4 extends into the other groove 51 of the lower welding section 5 to weld the other pin 61 of the resistor 6. When the welding pressure reaches the predetermined value, the first drive unit 11 drives the longitudinal slider 1 away from the lower welding section 5. By performing such cyclic welding, the resistance welding device of the utility model can realize automatic welding and ensure that each welding pin can be welded firmly.

[0025] The above embodiments are intended only to illustrate the concept and scope of the present invention and are not intended to limit the scope of protection of the present invention. Modifications, equivalent substitutions, and other improvements to the above embodiments that are obvious to those skilled in the art are also within the concept of the present invention. The scope and concept of protection of the present invention are specifically defined by the claims.

Claims

1. A resistance welding device for welding a resistor and an electronic device together, wherein the resistor comprises a resistor body and two pins arranged side by side, and the resistance welding device comprises a lower soldering portion, the lower soldering portion having two grooves, the grooves being used to accommodate the pins; and an upper welding portion, wherein the upper welding portion has a welding head, and the welding head can extend into the groove; It is characterized in that The upper welding part can move in the vertical direction and the horizontal direction, and the welding head of the upper welding part can extend into the two grooves in sequence by moving up and down or horizontally to weld the two pins.

2. The resistance welding device according to claim 1, wherein: The resistance welding device further comprises: a longitudinal slider, wherein the upper welding portion is provided on the longitudinal slider; a transverse slider, the longitudinal slider being mounted on the transverse slider and being movable up and down along the transverse slider; and A fixed frame, wherein the transverse slider is mounted on the fixed frame and can move horizontally along the fixed frame.

3. The resistance welding device according to claim 2, characterized in that The resistance welding device includes a first driving part and a second driving part. The first driving part is used to drive the longitudinal slider to move up and down, and the second driving part is used to drive the transverse slider to move horizontally.

4. The resistance welding device according to claim 2, wherein: The resistance welding device includes a guide sleeve and a slide rod. The guide sleeve is installed on a longitudinal slider. The slide rod can move up and down along the guide sleeve. The upper welding part is installed at the lower end of the slide rod.

5. The resistance welding device according to claim 4, characterized in that A pressure sensor is provided at the upper end of the sliding rod, and the pressure sensor is used to measure the welding pressure of resistance welding.

6. The resistance welding device according to claim 5, characterized in that A compression spring is provided between the pressure sensor and the guide sleeve, and the compression spring is sleeved on the slide rod to apply elastic force to the slide rod.

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