A patch resistor laser resistance adjustment precision compensation device

Abstract

The utility model relates to patch resistor processing technical field, concretely is a kind of patch resistor laser resistance regulating precision compensation device, including base, the upper end of base is fixedly connected with limit board and electric push rod, limit board is L character shape structure, the top of electric push rod is equipped with power output rod, power output rod is obliquely aligned limit board corner, the top of power output rod is fixedly connected with fixed plate, the side end of fixed plate is rotatably connected with the adjusting ring for adjusting the clamping pressure of patch resistor, both sides of fixed plate are inserted with traction plate, the top of power output rod is inserted with compensation screw column, the top of compensation screw column is fixedly connected with clamping plate, the middle of adjusting ring is screw-connected with the compensation screw column for the compensation of clamping plate position, the utility model can compensate the moving position of clamping plate, to ensure that patch resistor can be accurately clamped when being processed, ensure the precision after patch resistor processing.

Description

Technical Field

[0001] This utility model relates to the field of surface mount resistor processing technology, specifically a surface mount resistor laser trimming accuracy compensation device. Background Technology

[0002] When processing surface mount resistors, laser trimming machines first clamp and position the resistors before using a laser beam to cut them. This cutting of thick and thin-film circuits is achieved through the vaporization and evaporation of the resistor body. Current methods for clamping and positioning surface mount resistors involve controlling an electric actuator to move a clamping block from an initial position to a set coordinate system. This movement requires extreme precision. However, in actual processing, errors can occur after repeated back-and-forth movements, leading to inaccurate clamping of the resistors and affecting the cutting accuracy. Modifying the clamping block's coordinates requires extremely precise positioning, necessitating repeated measurements and adjustments. Utility Model Content

[0003] The purpose of this invention is to provide a device for compensating the accuracy of laser trimming of patch resistors, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a laser trimming accuracy compensation device for surface mount resistors, comprising a base, a limiting plate and an electric push rod fixedly connected to the upper end of the base, the limiting plate having an L-shaped structure, a power output rod at the top of the electric push rod, the power output rod being inclined and aligned with the corner of the limiting plate, a fixing plate fixedly connected to the top of the power output rod, an adjusting ring for adjusting the clamping pressure of the surface mount resistor being rotatably connected to the side end of the fixing plate, traction plates inserted into both sides of the fixing plate, a compensation threaded post inserted into the top of the power output rod, a snap-fit ​​plate fixedly connected to the top of the compensation threaded post, a compensation threaded post for compensating the position of the snap-fit ​​plate being threadedly connected to the middle of the adjusting ring, a pressure detection mechanism provided in the middle of the snap-fit ​​plate, the pressure detection mechanism consisting of an auxiliary block, a snap-fit ​​groove, a pressing post and a pressure sensor, the pressure detection mechanism being used to detect the clamping force of the surface mount resistor.

[0005] Preferably, the side end of the snap-fit ​​plate is provided with a connecting groove, the snap-fit ​​groove and the connecting groove are smoothly connected, and the snap-fit ​​groove and the connecting groove form a V-shaped structure.

[0006] Preferably, one end of the extrusion column is fixedly connected to the auxiliary block, and the other end of the extrusion column abuts against the pressure sensor.

[0007] Preferably, the lower end of the snap-fit ​​plate is slidably connected to the base, and the adjusting ring and the compensating threaded post are threadedly connected.

[0008] Preferably, the traction plate has an L-shaped structure, a connecting spring is provided between the top of the traction plate and the fixing plate, and a buckle is fixedly connected to the side end of the traction plate.

[0009] Preferably, a locking plate is fixedly connected to the side end of the traction plate, the top of the locking plate has a conical structure, and the top of the locking plate is engaged in the thread gap of the compensating threaded column.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: when errors occur after the snap-fit ​​plate moves back and forth multiple times, the traction plate is pulled to release the compensation threaded post. By rotating the adjusting ring, the adjusting ring drives the compensation threaded post to move, thereby adjusting the position of the snap-fit ​​plate and compensating for the clamping force of the chip resistor, thus accurately clamping the chip resistor and ensuring accurate cutting of the chip resistor. The operation is simple and convenient, requiring no highly specialized knowledge, and is easy to maintain. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the compensation device connection.

[0012] Figure 2 This is a schematic diagram showing the connection between the fixed plate and the adjusting ring.

[0013] Figure 3 This is a schematic diagram of the connection between the threaded rod and the snap-fit ​​plate.

[0014] Figure 4 This is an enlarged view of point A.

[0015] In the diagram: 1. Base, 2. Limiting plate, 3. Snap-fit ​​plate, 4. Electric push rod, 5. Power output rod, 6. Fixing plate, 7. Adjusting ring, 8. Traction plate, 9. Buckle ring, 10. Connecting groove, 11. Auxiliary block, 12. Snap-fit ​​groove, 13. Extrusion column, 14. Pressure sensor, 15. Pressure detection mechanism, 16. Compensating threaded column, 17. Locking plate, 18. Connecting spring. Detailed Implementation

[0016] To enhance understanding of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described and introduced below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, not all embodiments, and are not intended to limit the embodiments in any way. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] Please see Figure 1-4This utility model provides a technical solution: a laser trimming accuracy compensation device for surface mount resistors, comprising a base 1, a limiting plate 2 and an electric push rod 4 fixedly connected to the upper end of the base 1, the limiting plate 2 having an L-shaped structure, a power output rod 5 provided at the top of the electric push rod 4, the power output rod 5 being tilted and aligned with the corner of the limiting plate 2, a fixing plate 6 fixedly connected to the top of the power output rod 5, an adjusting ring 7 for adjusting the clamping pressure of the surface mount resistor being rotatably connected to the side end of the fixing plate 6, traction plates 8 inserted into both sides of the fixing plate 6, and a traction plate 8 inserted into the top of the power output rod 5. The compensation threaded post 16 has a clamping plate 3 fixedly connected to its top end. The middle thread of the adjusting ring 7 is connected to the compensation threaded post 16 for compensating the position of the clamping plate 3. The clamping plate 3 has a pressure detection mechanism 15 in the middle. The pressure detection mechanism 15 consists of an auxiliary block 11, a clamping groove 12, a squeezing post 13 and a pressure sensor 14. The pressure detection mechanism 15 is used to detect the clamping force of the chip resistor. The electric push rod 4 drives the clamping plate 3 to move through the power output rod 5. The clamping plate 3 and the limiting plate 2 cooperate with each other to clamp the chip resistor.

[0018] The side end of the snap-fit ​​plate 3 is provided with a connecting groove 10. The snap-fit ​​groove 12 and the connecting groove 10 are smoothly connected. The snap-fit ​​groove 12 and the connecting groove 10 form a V-shaped structure. The connecting groove 10 and the snap-fit ​​groove 12 cooperate with each other to snap the corner of the chip resistor.

[0019] One end of the extrusion column 13 is fixedly connected to the auxiliary block 11, and the other end of the extrusion column 13 abuts against the pressure sensor 14. When the snap plate 3 moves, the chip resistor is extruded. At this time, the extrusion column 13 extrudes the pressure sensor 14. The clamping accuracy of the chip resistor is judged by the extrusion force of the pressure sensor 14.

[0020] The lower end of the snap-fit ​​plate 3 is slidably connected to the base 1, which restricts the movement of the snap-fit ​​plate 3, so that the compensating threaded post 16 can only move. The adjusting ring 7 is threadedly connected to the compensating threaded post 16. By rotating the adjusting ring 7, the compensating threaded post 16 is moved, thereby compensating for the position of the snap-fit ​​plate 3.

[0021] The traction plate 8 has an L-shaped structure. A connecting spring 18 is provided between the top of the traction plate 8 and the fixed plate 6. A buckle 9 is fixedly connected to the side end of the traction plate 8, and a locking plate 17 is fixedly connected to the side end of the traction plate 8. The top of the locking plate 17 has a conical structure. The top of the locking plate 17 is engaged in the thread gap of the compensating threaded post 16. By inserting a finger into the buckle 9, the traction plate 8 is pulled to move, thereby removing the locking plate 17 from the thread gap of the compensating threaded post 16, releasing the lock on the compensating threaded post 16, and preventing the compensating threaded post 16 from moving when the gift output rod 5 drives the snap plate 3 to move.

[0022] Although embodiments of the present invention have been shown and described, it should be emphasized that the above description is merely an introduction and description of the usage of the embodiments of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art will understand that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface mount resistor laser trimming accuracy compensation device, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a limiting plate (2) and an electric push rod (4). The limiting plate (2) has an L-shaped structure. The top end of the electric push rod (4) is provided with a power output rod (5). The power output rod (5) is tilted and aligned with the corner of the limiting plate (2). The top end of the power output rod (5) is fixedly connected to a fixing plate (6). The side end of the fixing plate (6) is rotatably connected to an adjustment ring (7) for adjusting the clamping pressure of the chip resistor. Traction plates (8) are inserted into both sides of the fixing plate (6). The top end of the power output rod (5) is inserted with a compensating threaded post (16), the top end of the compensating threaded post (16) is fixedly connected with a snap-fit ​​plate (3), and the middle thread of the adjusting ring (7) is connected with a compensating threaded post (16) for compensating the position of the snap-fit ​​plate (3). The clamping plate (3) is provided with a pressure detection mechanism (15) in the middle. The pressure detection mechanism (15) consists of an auxiliary block (11), a clamping groove (12), a squeezing column (13) and a pressure sensor (14). The pressure detection mechanism (15) is used to detect the clamping force of the chip resistor.

2. The device for compensating the accuracy of laser trimming of patch resistors according to claim 1, characterized in that: The side end of the snap-fit ​​plate (3) is provided with a connecting groove (10), the snap-fit ​​groove (12) and the connecting groove (10) are smoothly connected, and the snap-fit ​​groove (12) and the connecting groove (10) form a V-shaped structure.

3. The device for compensating the accuracy of laser trimming of surface mount resistors according to claim 1, characterized in that: One end of the extrusion column (13) is fixedly connected to the auxiliary block (11), and the other end of the extrusion column (13) abuts against the pressure sensor (14).

4. The device for compensating the accuracy of laser trimming of surface mount resistors according to claim 1, characterized in that: The lower end of the snap-fit ​​plate (3) is slidably connected to the base (1), and the adjusting ring (7) is threadedly connected to the compensating threaded post (16).

5. The device for compensating the accuracy of laser trimming of patch resistors according to claim 1, characterized in that: The traction plate (8) has an L-shaped structure. A connecting spring (18) is provided between the top of the traction plate (8) and the fixing plate (6). A buckle (9) is fixedly connected to the side end of the traction plate (8).

6. The device for compensating the accuracy of laser trimming of surface mount resistors according to claim 1, characterized in that: A locking plate (17) is fixedly connected to the side end of the traction plate (8). The top end of the locking plate (17) is a conical structure, and the top end of the locking plate (17) is engaged in the thread gap of the compensating threaded column (16).

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