Laser trimming machine with online laser resistance trimming structure

Abstract

The utility model relates to a laser trimming machine with an online laser resistance trimming structure, which belongs to the technical field of laser resistance trimming and comprises a laser resistance trimming equipment body and a product storage rack arranged on the laser resistance trimming equipment body. Two linkage grooves are formed in the top surface of the product storage rack, a fixing plate is fixedly connected to the interior of the storage groove, two linkage plates are placed in the storage groove, one end of each linkage plate extends into the corresponding linkage groove, and vertical plates are fixedly connected to the top surfaces of the two linkage plates. According to the laser trimming machine with the online laser resistance trimming structure, chip resistors are limited under the action of the clamping plates, the stability of the chip resistors is improved, through sliding connection between the supporting blocks and the supporting grooves, the clamping plates are conveniently disassembled, assembled and replaced, attached resistors of different heights are conveniently fixed, and the using effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of laser trimming technology, specifically a laser trimming machine with an online laser trimming structure. Background Technology

[0002] Laser trimming machines are high-tech devices mainly used for resistance adjustment and circuit repair in the electronics manufacturing industry. They work by positioning an extremely fine laser beam onto a thin-film or thick-film resistor and cutting it according to a pre-programmed computer sequence, thereby changing the resistor's cross-sectional area and adjusting its resistance value. Online laser trimming structures typically refer to the key components of a laser trimming system used to adjust resistance values. Laser trimming machines generally adjust resistance through these structures.

[0003] Chinese patent CN213400742U discloses a multi-station laser trimming device. This patent discloses a technical solution to reduce resource waste and operating costs. It solves the problem that in the field of small package surface mount resistors, the processing method of laser trimming equipment is limited and usually a single row processing method. In the field of small package resistors, there is a large waste of material resources, which increases the operating costs of enterprises.

[0004] When in use, the device moves the product rack through the adjustment mechanism to achieve multi-station laser trimming. However, since the surface mount resistors are placed on the product racks and lack a limiting mechanism, the surface mount resistors are easily moved when the product racks move, reducing the trimming effect. Therefore, a laser trimming machine with an online laser trimming structure is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a laser trimming machine with an online laser trimming structure. It has the advantage of convenient fixation and solves the problem that when the device is in use, the product rack is moved by the adjustment device to achieve multi-station laser trimming. However, the chip resistors are placed on the product rack and lack a limiting mechanism, which easily causes the chip resistors to move when the product rack moves, reducing the trimming effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a laser trimming machine with an online laser trimming structure, comprising a laser trimming device body and a product shelf disposed on the laser trimming device body, wherein the product shelf has a placement slot inside and two linkage slots are provided on the top surface of the product shelf.

[0007] A fixing plate is fixedly connected inside the placement slot. Two linkage plates, each extending one end into one of the two linkage slots, are placed inside the placement slot. A vertical plate is fixedly connected to the top surface of each of the two linkage plates. Two clamping plates are placed on the opposite side of each of the two vertical plates. Two support slots are opened on the opposite side of each of the two vertical plates. Support blocks are slidably connected to the four support slots. The four support blocks are fixedly connected to the four clamping plates respectively. An installation slot is opened on the top surface of each of the two vertical plates.

[0008] The product shelf is equipped with a drive component to move the linkage plate.

[0009] Both mounting slots are equipped with fixing components to secure the support blocks.

[0010] Furthermore, the two linkage slots are symmetrically distributed on the left and right sides with the fixed plate as the center, and the two linkage plates are slidably connected to the two linkage slots respectively.

[0011] Furthermore, the bottom surfaces of both uprights are in contact with the top surface of the product shelf, and both the support block and the support groove are T-shaped.

[0012] Furthermore, the drive assembly includes a rotating rod, one end of which is rotatably connected to the left side of the fixed plate via a bearing, and the other end of which passes through the fixed plate and extends to its right side. Both the left and right sides of the rotating rod are fixedly connected to screws. The screw on the left side passes through the product shelf and extends to its left side. The screw on the left side is rotatably connected to the product shelf via a bearing. A drive motor is fixedly installed on the left side of the product shelf, and the output end of the drive motor is fixedly connected to the left screw.

[0013] Furthermore, both screws are rotatably connected by bearings and placement slots, the threads of the two screws are opposite, and threaded holes are opened on the left side of both linkage plates. The two screws pass through the two threaded holes and are threadedly connected to them respectively.

[0014] Furthermore, the fixing component includes a clamping plate, which is fixedly connected inside the mounting groove. Telescopic rods are fixedly connected to both the front and back of the clamping plate. Baffles are fixedly connected to the sides of the two telescopic rods away from the clamping plate. Springs, which are fixedly connected to the baffles and the clamping plate respectively, are fitted on the outer peripheral walls of the two telescopic rods. Positioning rods are fixedly connected to the sides of the two baffles away from the telescopic rods. Positioning holes are opened on the opposite sides of the two support blocks located on the same side. The two positioning rods extend into the interior of the two positioning holes respectively.

[0015] Furthermore, the baffle and the mounting groove fit together, the positioning rod and the positioning hole are clearance-fitted, and the support groove and the mounting groove are connected.

[0016] Furthermore, the telescopic rod consists of a sleeve and a moving rod. One end of the moving rod passes through and extends into the interior of the sleeve. A limiting block located inside the sleeve is fixedly connected to the outside of the moving rod. A through hole adapted to the moving rod is opened on one side of the sleeve.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] 1. This laser trimming machine with an online laser trimming structure restricts the surface mount resistors under the action of the clamping plate, thereby improving the stability of the surface mount resistors. Through the sliding connection between the support block and the support groove, the clamping plate can be easily disassembled and replaced, making it easy to fix surface mount resistors of different heights and improving the performance.

[0019] 2. This laser trimming machine with an online laser trimming structure moves the vertical plate through a sliding connection between the linkage plate and the linkage groove, which in turn moves the clamping plate. The linkage plate moves through a threaded connection between the screw and the linkage plate, making it easy for operators to operate. At the same time, the support block is fixed through the clearance fit between the positioning rod and the positioning hole, which improves the stability of the support plate and makes it more convenient and practical. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a top view of the upright plate in the structure of this utility model;

[0022] Figure 3 for Figure 2 Enlarged structural diagram of A in the middle;

[0023] Figure 4 This is a schematic diagram of the right side of the left vertical plate in the structure of this utility model.

[0024] In the diagram: 1 Laser trimming device body, 2 Product shelf, 3 Upright plate, 4 Clamping plate, 5 Placement slot, 6 Linkage slot, 7 Drive motor, 8 Screw, 9 Linkage plate, 10 Rotating rod, 11 Fixing plate, 12 Support block, 13 Support slot, 14 Mounting slot, 15 Card plate, 16 Telescopic rod, 17 Spring, 18 Baffle, 19 Positioning rod, 20 Positioning hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: Please refer to Figures 1 to 4 This embodiment of a laser trimming machine with an online laser trimming structure includes a laser trimming device body 1 and a product rack 2 disposed on the laser trimming device body 1. The product rack 2 has a placement slot 5 inside and two linkage slots 6 on the top surface of the product rack 2.

[0027] The placement slot 5 is fixedly connected to a fixing plate 11. The placement slot 5 contains two linkage plates 9, one end of which extends into the two linkage slots 6. The top surfaces of the two linkage plates 9 are fixedly connected to upright plates 3. The opposite sides of the two upright plates 3 are each provided with two clamping plates 4. The opposite sides of the two upright plates 3 are each provided with two support slots 13. The four support slots 13 are slidably connected to support blocks 12. The four support blocks 12 are fixedly connected to the four clamping plates 4 respectively. The top surfaces of the two upright plates 3 are each provided with mounting slots 14.

[0028] Among them, the two linkage slots 6 are symmetrically distributed on the left and right with the fixed plate 11 as the center, the two linkage plates 9 are slidably connected to the two linkage slots 6 respectively, the bottom surfaces of the two upright plates 3 are in contact with the top surface of the product shelf 2, and the support block 12 and the support slot 13 are both T-shaped.

[0029] Specifically, the support block 12 is pushed so that it is inserted into the support groove 13. Through the sliding connection between the support block 12 and the support groove 13, the clamping plate 4 is fixed on the upright plate 3. The chip resistor is placed on the product shelf 2. Through the sliding connection between the linkage plate 9 and the linkage groove 6, the two linkage plates 9 move relative to each other, so that the chip resistor and the clamping plate 4 are in contact, and the chip resistor is fixed.

[0030] Example 2: Please refer to Figures 1 to 4In this embodiment, based on Example 1, a drive assembly is provided on the product shelf 2. The drive assembly includes a rotating rod 10. One end of the rotating rod 10 is rotatably connected to the left side of the fixed plate 11 via a bearing, and the other end passes through the fixed plate 11 and extends to its right side. Screws 8 are fixedly connected to both the left and right sides of the rotating rod 10. The screw 8 on the left side passes through the product shelf 2 and extends to its left side. The screw 8 on the left side is rotatably connected to the product shelf 2 via a bearing. A drive motor 7 is fixedly installed on the left side of the product shelf 2, and the output end of the drive motor 7 is fixedly connected to the left screw 8.

[0031] The two screws 8 are rotatably connected by bearings and placement grooves 5. The threads of the two screws 8 are opposite. Threaded holes are opened on the left side of the two linkage plates 9. The two screws 8 pass through the two threaded holes and are threadedly connected to them.

[0032] Specifically, the drive motor 7 is started, and the output end of the drive motor 7 drives the left screw 8 and the rotating rod 10 to rotate, thereby causing the right screw 8 to rotate synchronously. Through the threaded connection between the screw 8 and the linkage plate 9, the screw 8 drives the two linkage plates 9 to move relative to each other.

[0033] Example 3: Please refer to Figures 1 to 4 In this embodiment, based on Embodiment 1 and Embodiment 2, a fixing component is provided inside each of the two mounting slots 14. The fixing component includes a clamping plate 15, which is fixedly connected inside the mounting slot 14. Telescopic rods 16 are fixedly connected to the front and back of the clamping plate 15. A baffle 18 is fixedly connected to the side of each telescopic rod 16 away from the clamping plate 15. Springs 17, which are fixedly connected to the baffle 18 and the clamping plate 15 respectively, are fitted on the outer peripheral walls of each of the two telescopic rods 16. Positioning rods 19 are fixedly connected to the side of each of the two baffles 18 away from the telescopic rods 16. Positioning holes 20 are opened on the opposite side of each of the two support blocks 12 on the same side. The two positioning rods 19 extend into the interior of the two positioning holes 20 respectively.

[0034] Among them, the baffle 18 and the mounting groove 14 fit together, the positioning rod 19 and the positioning hole 20 are fitted with a clearance, the support groove 13 and the mounting groove 14 are connected, the telescopic rod 16 is composed of a sleeve and a moving rod, one end of the moving rod passes through and extends into the interior of the sleeve, a limiting block located inside the sleeve is fixedly connected to the outside of the moving rod, and a through hole adapted to the moving rod is opened on one side of the sleeve.

[0035] Specifically, pulling the baffle 18 causes the positioning rod 19 to move, compressing the telescopic rod 16 and the spring 17, causing them to retract. The positioning rod 19 and the positioning hole 20 are then aligned on the same center line. Releasing the baffle 18 allows the positioning rod 19 to reset under the action of the spring 17, and the positioning rod 19 is inserted into the positioning hole 20 to fix the support block 12.

[0036] The working principle of the above embodiments is as follows:

[0037] Pulling the baffle 18 causes the positioning rod 19 to move, compressing the telescopic rod 16 and spring 17, causing them to retract. This pushes the support block 12, inserting it into the support groove 13. Through the sliding connection between the support block 12 and the support groove 13, the clamping plate 4 is fixed on the upright plate 3. The positioning rod 19 and the positioning hole 20 are on the same center line. Releasing the baffle 18 allows the positioning rod 19 to reset under the action of the spring 17, inserting it into the positioning hole 20 and fixing the support block 12. The chip resistor is placed on the product shelf 2. The drive motor 7 is started, and its output drives the left screw 8 and rotating rod 10 to rotate, causing the right screw 8 to rotate synchronously. Through the threaded connection between the screw 8 and the linkage plate 9, and the sliding connection between the linkage plate 9 and the linkage groove 6, the screw 8 drives the two linkage plates 9 to move relative to each other, causing the chip resistor to fit against the clamping plate 4 and fixing the chip resistor.

[0038] The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 laser trimming machine with an online laser trimming structure, comprising a laser trimming device body (1) and a product rack (2) disposed on the laser trimming device body (1), characterized in that: The product shelf (2) has a placement slot (5) inside, and two linkage slots (6) are opened on the top surface of the product shelf (2). The placement slot (5) is fixedly connected to a fixing plate (11). The placement slot (5) contains two linkage plates (9) with one end extending into the two linkage slots (6). The top surfaces of the two linkage plates (9) are fixedly connected to upright plates (3). The opposite sides of the two upright plates (3) are each provided with two clamping plates (4). The opposite sides of the two upright plates (3) are each provided with two support slots (13). The four support slots (13) are each slidably connected to support blocks (12). The four support blocks (12) are respectively fixedly connected to the four clamping plates (4). The top surfaces of the two upright plates (3) are each provided with mounting slots (14). The product shelf (2) is equipped with a drive assembly, and the two mounting slots (14) are each equipped with a fixing assembly.

2. A laser trimming machine with an online laser trimming structure according to claim 1, characterized in that: The two linkage slots (6) are symmetrically distributed on the left and right sides with the fixed plate (11) as the center, and the two linkage plates (9) are slidably connected to the two linkage slots (6) respectively.

3. A laser trimming machine with an online laser trimming structure according to claim 2, characterized in that: The bottom surfaces of both uprights (3) are in contact with the top surface of the product shelf (2), and the support block (12) and support groove (13) are both T-shaped.

4. A laser trimming machine with an online laser trimming structure according to claim 1, characterized in that: The drive assembly includes a rotating rod (10), one end of which is rotatably connected to the left side of the fixed plate (11) via a bearing, and the other end of which passes through the fixed plate (11) and extends to its right side. Both the left and right sides of the rotating rod (10) are fixedly connected to screws (8). The screw (8) on the left side passes through the product shelf (2) and extends to its left side. The screw (8) on the left side is rotatably connected to the product shelf (2) via a bearing. A drive motor (7) is fixedly installed on the left side of the product shelf (2), and the output end of the drive motor (7) is fixedly connected to the left screw (8).

5. A laser trimming machine with an online laser trimming structure according to claim 4, characterized in that: Both screws (8) are rotatably connected by bearings and placement grooves (5). The threads of the two screws (8) are opposite. Threaded holes are provided on the left side of both linkage plates (9). The two screws (8) pass through the two threaded holes and are threadedly connected to them.

6. A laser trimming machine with an online laser trimming structure according to claim 4, characterized in that: The fixing assembly includes a clamping plate (15), which is fixedly connected to the inside of the mounting groove (14). Telescopic rods (16) are fixedly connected to both the front and back of the clamping plate (15). Baffles (18) are fixedly connected to the side of each of the two telescopic rods (16) away from the clamping plate (15). Springs (17) are fitted on the outer peripheral walls of each of the two telescopic rods (16) and are fixedly connected to the baffles (18) and the clamping plate (15), respectively. Positioning rods (19) are fixedly connected to the side of each of the two baffles (18) away from the telescopic rods (16). Positioning holes (20) are opened on the opposite side of each of the two support blocks (12) located on the same side. The two positioning rods (19) extend into the interior of the two positioning holes (20), respectively.

7. A laser trimming machine with an online laser trimming structure according to claim 6, characterized in that: The baffle (18) and the mounting groove (14) are fitted together, the positioning rod (19) and the positioning hole (20) are fitted with a clearance, and the support groove (13) and the mounting groove (14) are connected.

8. A laser trimming machine with an online laser trimming structure according to claim 7, characterized in that: The telescopic rod (16) consists of a housing and a moving rod. One end of the moving rod passes through and extends into the interior of the housing. A limiting block located inside the housing is fixedly connected to the outside of the moving rod. A through hole adapted to the moving rod is opened on one side of the housing.

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