Positioning clamp for electronic component machining

Abstract

The utility model discloses a positioning fixture for processing electronic components, which comprises a placing frame, a mounting frame is fixedly connected to the middle of the placing frame, an electric cylinder is fixedly mounted at the top end of the mounting frame, a transmission plate is fixedly mounted at the top end of the electric cylinder, a plurality of extension plates are fixedly connected to the outer side of the transmission plate, and the extension plates are fixedly connected to the outer side of the mounting frame. The device has the advantages that the electric air cylinder is adopted for driving to be matched with guiding of the limiting grooves, the transmission rods are made to conduct curved and vertical combined guiding movement along the limiting grooves through the limiting protruding blocks, synchronous vertical downward pressing of the pressing plate is achieved, and the pressing plate is not prone to falling off. The pressure is uniformly distributed, offset or local overload of the PCB is avoided, the bottom end of the pressing plate is provided with the arc-shaped rubber layer, impact on the surface of the PCB is reduced through elastic contact, direct contact between the edge of the pressing plate and a component is avoided through the arc-shaped structure, and the situation that sensitive components are scratched or damaged by pressing is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, specifically a positioning fixture for processing electronic components. Background Technology

[0002] In the field of electronic component processing, especially in the dispensing process of PCB electronic components, positioning fixtures play a crucial role. Since PCB assembly boards often have complex circuit layouts and precise component layouts, it is essential to ensure the accurate positioning of the PCB assembly board and protect its electronic components from damage during the processing.

[0003] Existing electronic component positioning fixtures mostly adopt rigid clamping structures. Although they can achieve the fixing function, they are prone to damaging the corners of the PCB. This not only affects the aesthetics of the PCB, but may also have an adverse effect on its electrical performance. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning fixture for processing electronic components, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for processing electronic components, comprising a placement frame, a mounting frame fixedly connected to the middle of the placement frame, an electric cylinder fixedly mounted on the top of the mounting frame, a transmission plate fixedly mounted on the top of the electric cylinder, several extension plates fixedly connected to the outer side of the transmission plate, a transmission rod rotatably connected to the top of each extension plate, a limiting protrusion fixedly connected to one side of each transmission rod, support rods fixedly connected to the four corners of the top and bottom of the placement frame, a load-bearing plate fixedly connected to the top of several support rods, a partition fixedly mounted on the top of the load-bearing plate, several limiting cylinders arranged in a rectangular array fixedly connected to the top of the load-bearing plate, a limiting groove formed on one side of each limiting cylinder, the transmission rod penetrating the load-bearing plate, the transmission rod slidably connected to the load-bearing plate, the transmission rod slidably connected to the limiting cylinders, the limiting protrusions slidably connected to the limiting grooves, and a pressure plate fixedly connected to the top of each of the several transmission rods.

[0006] Preferably, a rubber layer is fixedly connected to the bottom end of each pressure plate, and both the pressure plate and the rubber layer have an arc-shaped structure design on one side.

[0007] Preferably, the mounting bracket has a cross-shaped structure design, and the middle part of the mounting bracket has a circular structure design.

[0008] Preferably, the extension plate has a rectangular structure design or a frame structure design.

[0009] Preferably, the top of the limiting groove is curved, and the bottom of the limiting groove is vertical.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the electric cylinder drive combined with the guide of the limiting groove enables the transmission rod to perform curved and vertical compound guiding movements along the limiting groove through the limiting protrusion, so as to realize the synchronous vertical pressing of the pressure plate, the pressure is evenly distributed, and the PCB board is avoided from shifting or local overload. At the same time, the bottom of the pressure plate is formed into an arc-shaped rubber layer, which reduces the impact on the PCB surface through elastic contact, and the arc structure avoids direct contact between the edge of the pressure plate and the components, effectively preventing scratches or damage to sensitive parts. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0012] Figure 2 This is a side view of the structure of this utility model;

[0013] Figure 3 This is a partial structural cross-sectional view of the present invention;

[0014] Figure 4 This is a partial structural disassembly diagram of the present invention.

[0015] In the diagram: 1. Placement rack; 2. Mounting rack; 3. Electric cylinder; 4. Transmission plate; 5. Extension plate; 6. Transmission rod; 7. Limiting protrusion; 8. Support rod; 9. Load-bearing plate; 10. Partition plate; 11. Limiting cylinder; 12. Limiting groove; 13. Pressure plate; 14. Rubber layer. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-4This utility model provides a technical solution: a positioning fixture for processing electronic components, including a placement frame 1, a mounting frame 2 fixedly connected to the middle of the placement frame 1, an electric cylinder 3 fixedly mounted on the top of the mounting frame 2, a transmission plate 4 fixedly mounted on the top of the electric cylinder 3, several extension plates 5 fixedly connected to the outer side of the transmission plate 4, a transmission rod 6 rotatably connected to the top of each extension plate 5, a limiting protrusion 7 fixedly connected to one side of each transmission rod 6, support rods 8 fixedly connected to the top and bottom four corners of the placement frame 1, a load-bearing plate 9 fixedly connected to the top of several support rods 8, a partition plate 10 fixedly mounted on the top of the load-bearing plate 9, several limiting cylinders 11 arranged in a rectangular array fixedly connected to the top of the load-bearing plate 9, a limiting groove 12 opened on one side of each limiting cylinder 11, the transmission rod 6 passing through the load-bearing plate 9, the transmission rod 6 slidingly connected to the load-bearing plate 9, the transmission rod 6 slidingly connected to the limiting cylinder 11, the limiting protrusion 7 slidingly connected to the limiting groove 12, and a pressure plate 13 fixedly connected to the top of each of the several transmission rods 6.

[0018] The bottom of the pressure plate 13 is fixedly connected to a rubber layer 14. Both the pressure plate 13 and the rubber layer 14 have an arc-shaped structure design on one side. The arc-shaped structure design can prevent the pressure plate 13 from contacting electronic components. At the same time, the rubber layer 14 provides isolation and protection. The mounting bracket 2 has a cross-shaped structure design and a circular structure design in the middle position of the mounting bracket 2, which facilitates the installation of the electric cylinder 3 and makes the force more even. The extension plate 5 has a rectangular structure design and a frame-shaped structure design, which facilitates transmission and reduces costs. The top of the limiting groove 12 is curved and the bottom of the limiting groove 12 is vertical, which facilitates limiting and guiding.

[0019] Specifically, when using this utility model, the electronic component assembly board is placed on the partition 10, and the electric cylinder 3 is started. The electric cylinder 3 drives the extension plate 5 to move downward through the transmission plate 4. The moving extension plate 5 then drives the transmission rod 6 to move downward. At this time, the limiting groove 12 opened in the limiting cylinder 11 limits and guides the limiting protrusion 7. The transmission rod 6 then moves along the limiting groove 12 through the limiting protrusion 7. The moving transmission rod 6 then drives the pressure plate 13 to position and squeeze the electronic component assembly board.

[0020] 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 positioning fixture for processing electronic components, characterized in that, The device includes a placement rack (1), a mounting rack (2) fixedly connected to the middle of the placement rack (1), an electric cylinder (3) fixedly mounted on the top of the mounting rack (2), a transmission plate (4) fixedly mounted on the top of the electric cylinder (3), several extension plates (5) fixedly connected to the outside of the transmission plate (4), a transmission rod (6) rotatably connected to the top of each extension plate (5), a limit protrusion (7) fixedly connected to one side of each transmission rod (6), and support rods (8) fixedly connected to the top and bottom four corners of the placement rack (1), with the tops of several support rods (8) being fixed together. A load-bearing plate (9) is connected to the top of the load-bearing plate (9), and a partition plate (10) is fixedly installed on the top of the load-bearing plate (9). A plurality of limiting cylinders (11) arranged in a rectangular array are fixedly connected to the top of the load-bearing plate (9). A limiting groove (12) is opened on one side of each limiting cylinder (11). A transmission rod (6) passes through the load-bearing plate (9). The transmission rod (6) is slidably connected to the load-bearing plate (9). The transmission rod (6) is slidably connected to the limiting cylinder (11). The limiting protrusion (7) is slidably connected to the limiting groove (12). A pressure plate (13) is fixedly connected to the top of each of the transmission rods (6).

2. The positioning fixture for processing electronic components according to claim 1, characterized in that: The bottom of each pressure plate (13) is fixedly connected to a rubber layer (14), and both the pressure plate (13) and the rubber layer (14) have an arc-shaped structure design on one side.

3. The positioning fixture for processing electronic components according to claim 1, characterized in that: The mounting bracket (2) has a cross-shaped structure design, and the middle part of the mounting bracket (2) has a circular structure design.

4. The positioning fixture for processing electronic components according to claim 1, characterized in that: The extension plate (5) is a rectangular structure design, and the extension plate (5) is a frame structure design.

5. A positioning fixture for processing electronic components according to claim 1, characterized in that: The top of the limiting groove (12) is curved, and the bottom of the limiting groove (12) is vertical.

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