Piezoresistor welding jig
By setting up a refrigeration block on the pin limit device of the varistor welding fixture and combining the use of the fixing device, the welding structure deformation problem caused by high temperature is solved, the welding stability and accuracy are improved, and the product yield and production efficiency are ensured.
Patent Information
- Application Number
- CN202420188357.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-25
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-01-25
AI Technical Summary
In the prior art, varistor welding fixtures are prone to deformation of the welding structure at high temperatures, leading to pin deviation, open welding and injection molding pin compression problems, and cannot be mass-produced.
A varistor welding fixture including a carrier plate, a lateral moving device, a limiting device, a fixing device, a welding device and a column is designed. By setting a refrigeration block on the pin limiting device, cooling is used to reduce the cooling, and the welding structure is prevented from deformation, and the resistor body is fixed through the fixing device to prevent displacement.
It effectively avoids deformation of the welding structure caused by high temperature, improves the stability and accuracy of welding, and ensures product yield and production efficiency.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electronic component processing equipment, and in particular relates to a varistor welding jig. Background Art
[0002] With the continuous development of electronic products, the output of electronic products is getting higher and higher, and chip varistors are becoming more and more popular in the market. The demand for chip varistors has increased dramatically, so the requirements for product yield and production efficiency are also getting higher and higher. During the welding process of varistors, the entire sheet passes through a high-temperature welding furnace. After welding, the frame is deformed by heat, the pins are misaligned, the welds are open, and the injection molded pins are severely crushed, making mass production impossible. In the prior art, automated mechanical equipment is set to perform welding operations on the pins to improve the yield rate and improve production automation. However, the use of welding jigs in the prior art has the technical problem that high temperature causes deformation of the welding structure. Utility Model Content
[0003] The utility model aims to provide a varistor welding jig, aiming to solve the technical problem of deformation of the resistance welding structure of the welding jig in the prior art.
[0004] To achieve the above-mentioned purpose, an embodiment of the utility model provides a varistor welding jig, including a carrier plate, a lateral moving device, a limiting device, a fixing device, a welding device and a column, the lateral moving device and the column are both fixedly installed on the carrier plate, the limiting device and the fixing device are both fixedly installed on the moving end of the lateral moving device, and the limiting device and the fixing device are arranged adjacent to each other, a cooling block is arranged between the two pin placement grooves of the limiting device, the welding device is fixedly installed on the column, and the welding end of the welding device is located above the limiting device and the fixing device.
[0005] Preferably, the limiting device includes a placing device, a pin limiting device, a first limiting cylinder and a second limiting cylinder, the placing device is fixedly mounted on the moving end of the lateral moving device, the pin limiting device is installed at the top edge position of the positive side of the placing device, the refrigeration block is installed between the two pin placing grooves of the pin limiting device, the first limiting cylinder and the second limiting cylinder are respectively fixedly mounted on both sides of the placing device, and the moving ends of the first limiting cylinder and the second limiting cylinder are respectively connected to the two limiting plates of the pin limiting device.
[0006] Preferably, the pin limiting device also includes a fixed block, a separator and two support bars, the separator is located between the two limiting plates, the two support bars are respectively located in the gap between the two limiting plates and the separator, the fixed block is fixedly installed on the side of the placing device, the separator, the support bar, the limiting plate and the movable ends of the first limiting cylinder and the second limiting cylinder are all located between the fixed block and the placing device.
[0007] Preferably, the placing device includes a mounting block and a placing seat, the mounting block is fixedly mounted on the moving end of the transverse moving device, and the mounting block is arranged adjacent to the fixing device, the placing seat is fixedly mounted on the top of the mounting block, the fixing block is fixedly mounted on the side of the mounting block, and the dividing plate and the limiting plate are both arranged between the mounting block and the fixing block.
[0008] Preferably, the fixing device includes a pressing block and a pressing cylinder, the lifting end of the pressing cylinder is fixedly installed upward on the moving end of the lateral moving device, and the pressing cylinder is arranged adjacent to the limiting device, the pressing block is fixedly installed on the lifting end of the pressing cylinder, and one end of the pressing block extends to above the limiting device, which is used to fix the resistor body.
[0009] Preferably, the lateral moving device includes a mounting plate, a slide rail, a slider, a movable cylinder, a base plate and two limit plates, the base plate is fixedly mounted on the carrier plate, the slide rail, the movable cylinder and the limit plates are all arranged on the base plate, and the slide rail is located between the two limit plates, the slider is slidably mounted on the slide rail, the movable end of the movable cylinder passes through one of the limit plates and is fixedly connected to the slider, the mounting plate is fixedly mounted on the slider, and the limit device and the fixing device are both fixedly mounted on the mounting plate.
[0010] Preferably, two baffles are provided on the sliding block, the mounting plate is located between the two baffles, and one end of the two baffles extends above the two limit plates respectively.
[0011] Preferably, the welding device includes a lifting cylinder, a lifting device and a welding head, the lifting cylinder and the lifting device are both fixedly mounted on the column, the lifting end of the lifting cylinder passes through the top plate of the column and is fixedly connected to one side of the moving end of the lifting device, the welding head is fixedly mounted on the other side of the lifting device, and the welding end of the welding head is located above the limiting device.
[0012] The above one or more technical solutions in the varistor welding jig provided by the embodiment of the utility model have at least one of the following technical effects:
[0013] The varistor welding jig in the utility model is assembled by a carrier plate, a lateral moving device, a pin limiting device, a fixing device, a welding device and a column. The lateral moving device is used for adjusting the position laterally. The pin limiting device is used for limiting the resistor pins to facilitate welding processing. A refrigeration block is arranged on the pin limiting device. The refrigeration effect of the refrigeration block between the two pins is used to cool the workpiece in a high temperature state to avoid deformation of the resistor welding structure. The fixing device is used to firmly fix the resistor body on the pin limiting device to avoid displacement of the resistor during processing. The welding device is used to perform welding processing on the resistor. The lateral moving device and the column are fixedly installed on the carrier plate. The pin limiting device and the fixing device are fixedly installed on the moving end of the lateral moving device. The pin limiting device and the fixing device are driven by the lateral moving device to move laterally to adjust the position. The welding device is fixedly installed on the column to perform welding operation on the resistor on the pin limiting device located below. Through the above structure, during processing of the welding jig in the present application, the welding structure of the workpiece will not be deformed due to high temperature. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 labor.
[0015] Figure 1 This is a rendering of the varistor welding fixture provided in an embodiment of the utility model.
[0016] Figure 2 This is a rendering of the lateral movement device of the varistor welding fixture provided in an embodiment of the utility model.
[0017] Figure 3 This is a rendering of the limiting device of the varistor welding fixture provided in an embodiment of the utility model.
[0018] Figure 4 for Figure 3 A partial enlarged view of middle A.
[0019] Figure 5 This is a rendering of the fixing device of the varistor welding fixture provided in an embodiment of the utility model.
[0020] Among them, the reference numerals in the figure are:
[0021] 10 - carrier plate 20 - lateral moving device 21 - mounting plate
[0022] 22—slide rail 23—slider 24—moving cylinder
[0023] 25 - bottom plate 26 - limit plate 30 - limit device
[0024] 31 - placement device 32 - pin limiting device 33 - first limiting cylinder
[0025] 34 - second limit cylinder 40 - fixing device 41 - pressure block
[0026] 42—Pressing cylinder 50—Welding device 51—Lifting cylinder
[0027] 52 - lifting device 53 - welding head 60 - column
[0028] 231—Baffle 311—Mounting Block 312—Placement Seat
[0029] 321—fixed block 322—separator 323—limiting piece
[0030] 324—Support bar 325—Refrigeration block. DETAILED DESCRIPTION
[0031] The following describes the embodiments of the present invention in detail. Figures 1 to 5 , wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the utility model, and should not be construed as limiting the utility model.
[0032] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0034] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.
[0035] In one embodiment of the present invention, Figures 1 to 5 As shown, a varistor welding fixture is provided, including a carrier plate 10, a lateral moving device 20, a limiting device 30, a fixing device 40, a welding device 50 and a column 60, the lateral moving device 20 and the column 60 are both fixedly mounted on the carrier plate 10, the limiting device 30 and the fixing device 40 are both fixedly mounted on the moving end of the lateral moving device 20, and the limiting device 30 and the fixing device 40 are arranged adjacent to each other, a cooling block 325 is arranged between two pin placement grooves of the limiting device 30, the welding device 50 is fixedly mounted on the column 60, and the welding end of the welding device 50 is located above the limiting device 30 and the fixing device 40.
[0036] The varistor welding fixture in the utility model is assembled by a carrier plate 10, a lateral moving device 20, a pin limiting device 32, a fixing device 40, a welding device 50 and a column 60. The lateral moving device 20 is used to adjust the position laterally. The pin limiting device 32 is used to limit the resistor pins to facilitate welding processing. A cooling block 325 is arranged on the pin limiting device 32. The cooling effect of the cooling block 325 located between the two pins is used to cool the workpiece in a high temperature state to avoid deformation of the resistor welding structure. The fixing device 40 is used to firmly fix the resistor body on the pin limiting device 32 to avoid the processing process. The resistor in the middle is displaced, and the welding device 50 is used to perform welding processing on the resistor. The lateral moving device 20 and the column 60 are fixedly installed on the carrier 10, and the pin limiting device 32 and the fixing device 40 are fixedly installed on the moving end of the lateral moving device 20. The lateral moving device 20 drives the pin limiting device 32 and the fixing device 40 to move laterally to adjust the position. The welding device 50 is fixedly installed on the column 60, and the resistor on the pin limiting device 32 located below is welded. Through the above structure, the welding fixture in the present application can be processed, and the welding structure of the workpiece will not be deformed due to high temperature.
[0037] In another embodiment of the present invention, Figure 1 and Figures 3-4As shown, the limiting device 30 includes a placing device 31, a pin limiting device 32, a first limiting cylinder 33 and a second limiting cylinder 34. The placing device 31 is fixedly installed on the moving end of the lateral moving device 20, the pin limiting device 32 is installed at the top edge position of the positive side of the placing device 31, the cooling block 325 is installed between the two pin placing grooves of the pin limiting device 32, the first limiting cylinder 33 and the second limiting cylinder 34 are respectively fixedly installed on both sides of the placing device 31, and the moving ends of the first limiting cylinder 33 and the second limiting cylinder 34 are respectively connected to the two limiting plates 323 of the pin limiting device 32, the positions of the two limiting plates 323 are adjusted by the first limiting cylinder 33 and the second limiting cylinder 34, and then the size of the pin placing groove is adjusted to limit the pin.
[0038] In another embodiment of the present invention, Figure 1 and Figures 3-4 As shown, the pin limiting device 32 also includes a fixed block 321, a separator 322 and two support bars 324. The separator 322 is located between the two limiting plates 323. The two support bars 324 are respectively located in the gap between the two limiting plates 323 and the separator 322. The fixed block 321 is fixedly installed on the side of the placement device 31. The separator 322, the support bar 324, the limiting plate 323 and the movable ends of the first limiting cylinder 33 and the second limiting cylinder 34 are all located between the fixed block 321 and the placement device 31. The two pins are separated by the separator 322. The cooling block 325 is adjacent to the separator 322 for cooling the pin welding ends on both sides of the separator 322.
[0039] In another embodiment of the present invention, Figure 1 and Figures 3-4 As shown, the placement device 31 includes a mounting block 311 and a placement seat 312. The mounting block 311 is fixedly mounted on the moving end of the lateral moving device 20, and the mounting block 311 is arranged adjacent to the fixing device 40. The placement seat 312 is fixedly mounted on the top of the mounting block 311. The fixing block 321 is fixedly mounted on the side of the mounting block 311. The partition plate 322 and the limit plate 323 are both arranged between the mounting block 311 and the fixing block 321. The resistor body is placed on the placement seat 312, and cooperates with the fixing device 40 so that the resistor body is firmly fixed on the placement seat 312 for processing.
[0040] In another embodiment of the present invention, Figure 1 and Figure 5As shown, the fixing device 40 includes a pressing block 41 and a pressing cylinder 42. The lifting end of the pressing cylinder 42 is fixedly installed on the moving end of the lateral moving device 20 with its lifting end facing upward, and the pressing cylinder 42 is arranged adjacent to the limiting device 30. The pressing block 41 is fixedly installed on the lifting end of the pressing cylinder 42, and one end of the pressing block 41 extends to the top of the limiting device 30, which is used to fix the resistor body. Under the action of the pressing cylinder 42, the pressing block 41 presses the resistor body.
[0041] In another embodiment of the present invention, Figures 1-2 As shown, the lateral moving device 20 includes a mounting plate 21, a slide rail 22, a slider 23, a moving cylinder 24, a base plate 25 and two limit plates 26. The base plate 25 is fixedly mounted on the carrier plate 10. The slide rail 22, the moving cylinder 24 and the limit plates 26 are all arranged on the base plate 25, and the slide rail 22 is located between the two limit plates 26. The slider 23 is slidably mounted on the slide rail 22. The moving end of the moving cylinder 24 passes through a limit plate 26 and is fixedly connected to the slider 23. The mounting plate 21 is fixedly mounted on the slider 23. The limit device 30 and the fixing device 40 are both fixedly mounted on the mounting plate 21. The slider 23 is pushed by the moving cylinder 24 to move back and forth directly on the slide rail 22 between the two limit plates 26, thereby driving the mounting plate 21 to move.
[0042] In another embodiment of the present invention, Figures 1-2 As shown, two baffles 231 are provided on the slider 23, the mounting plate 21 is located between the two baffles 231, one end of the two baffles 231 extends to above the two limit plates 26 respectively, and the baffles 231 cover the shielding gap to prevent foreign matter from entering the internal structure.
[0043] In another embodiment of the present invention, Figure 1 As shown, the welding device 50 includes a lifting cylinder 51, a lifting device 52 and a welding head 53. The lifting cylinder 51 and the lifting device 52 are both fixedly installed on the column 60. The lifting end of the lifting cylinder 51 passes through the top plate of the column 60 and is fixedly connected to one side of the moving end of the lifting device 52. The welding head 53 is fixedly installed on the other side of the lifting device 52, and the welding end of the welding head 53 is located above the limiting device 30. The lifting cylinder 51 cooperates with the lifting device 52 to drive the welding head 53 to move to complete the welding operation.
[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A varistor welding jig, characterized in that: It includes a carrier plate, a lateral moving device, a limiting device, a fixing device, a welding device and a column. The lateral moving device and the column are both fixedly installed on the carrier plate. The limiting device and the fixing device are both fixedly installed on the moving end of the lateral moving device, and the limiting device and the fixing device are arranged adjacent to each other. A cooling block is arranged between the two pin placement grooves of the limiting device. The welding device is fixedly installed on the column, and the welding end of the welding device is located above the limiting device and the fixing device.
2. The varistor welding jig according to claim 1, characterized in that: The limiting device includes a placing device, a pin limiting device, a first limiting cylinder and a second limiting cylinder. The placing device is fixedly installed on the moving end of the lateral moving device. The pin limiting device is installed at the top edge of the positive side of the placing device. The refrigeration block is installed between two pin placing grooves of the pin limiting device. The first limiting cylinder and the second limiting cylinder are respectively fixedly installed on both sides of the placing device, and the moving ends of the first limiting cylinder and the second limiting cylinder are respectively connected to the two limiting plates of the pin limiting device.
3. The varistor welding jig according to claim 2, characterized in that: The pin limiting device also includes a fixed block, a separator and two support bars, the separator is located between the two limiting plates, the two support bars are respectively located in the gap between the two limiting plates and the separator, the fixed block is fixedly installed on the side of the placing device, the separator, the support bar, the limiting plate and the movable ends of the first limiting cylinder and the second limiting cylinder are all located between the fixed block and the placing device.
4. The varistor welding jig according to claim 3, characterized in that: The placing device includes a mounting block and a placing seat, the mounting block is fixedly mounted on the moving end of the transverse moving device, and the mounting block is arranged adjacent to the fixing device, the placing seat is fixedly mounted on the top of the mounting block, the fixing block is fixedly mounted on the side of the mounting block, and the dividing piece and the limiting piece are both arranged between the mounting block and the fixing block.
5. The varistor welding jig according to claim 1, characterized in that: The fixing device includes a pressing block and a pressing cylinder. The lifting end of the pressing cylinder is fixedly installed on the moving end of the lateral moving device with the lifting end facing upward, and the pressing cylinder is arranged adjacent to the limiting device. The pressing block is fixedly installed on the lifting end of the pressing cylinder, and one end of the pressing block extends to above the limiting device for fixing the resistor body.
6. The varistor welding jig according to claim 1, characterized in that: The lateral moving device includes a mounting plate, a slide rail, a slider, a moving cylinder, a base plate and two limit plates. The base plate is fixedly mounted on the carrier plate. The slide rail, the moving cylinder and the limit plates are all arranged on the base plate, and the slide rail is located between the two limit plates. The slider is slidably mounted on the slide rail. The moving end of the moving cylinder passes through one of the limit plates and is fixedly connected to the slider. The mounting plate is fixedly mounted on the slider. The limit device and the fixing device are both fixedly mounted on the mounting plate.
7. The varistor welding jig according to claim 6, characterized in that: Two baffles are arranged on the sliding block, the mounting plate is located between the two baffles, and one end of the two baffles extends above the two limit plates respectively.
8. The varistor welding jig according to claim 1, characterized in that: The welding device includes a lifting cylinder, a lifting device and a welding head. The lifting cylinder and the lifting device are both fixedly installed on the column. The lifting end of the lifting cylinder passes through the top plate of the column and is fixedly connected to one side of the moving end of the lifting device. The welding head is fixedly installed on the other side of the lifting device, and the welding end of the welding head is located above the limiting device.