Burning jig

Abstract

The utility model relates to the technical field of burning equipment, in particular to a burning jig which comprises a jig seat, the top of the jig seat is respectively provided with a placing plate and a mounting frame, the top surface of the placing plate is provided with a chip groove, the inner wall of the bottom end of the chip groove is provided with a through hole, a contact mechanism is arranged between the placing plate and the jig seat, and the mounting frame is provided with a through hole. An electric sliding rail is arranged on the surface of the front side of the mounting frame, an electric sliding block is arranged in the electric sliding rail, a mounting plate is fixedly mounted on the front side of the electric sliding block, an electric push rod is arranged at the top of the mounting plate, a burner is arranged at the bottom of the mounting plate, and a burning pin is arranged at the bottom of the burner. According to the burning jig, the structural design in the contact mechanism and the arrangement of the supporting pressure spring are mainly used for applying pre-pressure to the bottom of the placing plate, flexible contact between a chip and a pin is achieved, damage to the chip caused by too large contact force is effectively avoided, and follow-up use is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of programming equipment technology, specifically to a programming fixture. Background Technology

[0002] PCBs are widely used. With the development of electronic technology, the functions of PCBs are becoming more and more diverse. In order to achieve different functions, PCBs are generally equipped with programmable components. The process of inputting a specific program into the programmable component is generally called program burning.

[0003] Currently used programming fixtures mostly use rigid contact between the pins and the chip. This contact method can easily cause pressure on the chip, leading to chip damage and hindering subsequent use. In addition, most of these devices rely on a single station for programming operations, which reduces the efficiency of the device and affects its practicality.

[0004] In summary, this utility model solves the problems in the background art by designing a programming fixture. Utility Model Content

[0005] The purpose of this invention is to provide a burning fixture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A programming fixture includes a fixture base, a placement plate and a mounting bracket are respectively provided on the top of the fixture base, a chip slot is formed on the top surface of the placement plate, a through hole is formed on the inner wall of the bottom end of the chip slot, a contact mechanism is provided between the placement plate and the fixture base, an electric slide rail is embedded in the front surface of the mounting bracket, an electric slider is provided inside the electric slide rail, a mounting plate is fixedly installed on the front side of the electric slider, an electric push rod is provided on the top of the mounting plate, a programmer is provided at the bottom of the mounting plate, and programming pins are provided at the bottom of the programmer.

[0008] The contact mechanism includes a plate groove and a limiting block. The plate groove is formed on the top surface of the fixture seat. Limiting grooves are formed on the inner walls of the left and right sides of the plate groove. A support compression spring is fixedly installed on the inner wall of the bottom end of the plate groove. The limiting block is fixedly installed on the left and right sides of the plate placement surface.

[0009] As a preferred embodiment of this utility model, there are multiple placement plates, and the multiple placement plates are distributed equidistantly from left to right about the top surface of the fixture seat.

[0010] In a preferred embodiment of this utility model, the electric slide rail and the electric slider are electrically connected.

[0011] As a preferred embodiment of this utility model, the telescopic end of the electric actuator passes through the top surface of the mounting plate and is in fixed contact with the top of the programmer.

[0012] In a preferred embodiment of this utility model, the positions of the limiting block and the limiting groove are correspondingly arranged, and the limiting block and the limiting groove slide in contact.

[0013] As a preferred embodiment of this utility model, the top end of the support spring is fixed to the bottom surface of the placement plate, and the support spring is symmetrically distributed about the inner central axis of the plate groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, by setting a programming fixture, the structural design of the contact mechanism can prevent the placement plate from shifting laterally under the contact of the limiting groove and the limiting block. The setting of the support spring is mainly used to apply pre-pressure to the bottom of the placement plate, realizing flexible contact between the chip and the pin, thereby effectively avoiding damage to the chip due to excessive contact force, which is beneficial to subsequent use.

[0016] 2. In this utility model, by setting up a programming fixture, the structural design of the placement plate, electric slide rail and electric slider allows multiple chip circuit boards to be placed in contact with the chip circuit boards. The sliding of the electric slide rail and electric slider realizes the lateral movement of the programmer, which facilitates the programming of multiple chip circuit boards at one time and improves the working efficiency of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the fixture base of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the placement plate of this utility model.

[0020] In the diagram: 1. Fixture base; 2. Placement plate; 201. Chip slot; 2011. Through hole; 3. Mounting bracket; 301. Electric slide rail; 302. Electric slider; 303. Mounting plate; 304. Electric push rod; 305. Programmer; 306. Programming pin; 4. Contact mechanism; 401. Board slot; 402. Limiting block; 403. Limiting slot; 404. Support spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0026] A programming fixture includes a fixture base 1. A placement plate 2 and a mounting bracket 3 are respectively provided on the top of the fixture base 1. A chip slot 201 is formed on the top surface of the placement plate 2. A through hole 2011 is formed on the inner wall of the bottom end of the chip slot 201. A contact mechanism 4 is provided between the placement plate 2 and the fixture base 1. An electric slide rail 301 is embedded in the front surface of the mounting bracket 3. An electric slider 302 is provided inside the electric slide rail 301. A mounting plate 303 is fixedly installed on the front side of the electric slider 302. An electric push rod 304 is provided on the top of the mounting plate 303. A programmer 305 is provided on the bottom of the mounting plate 303. A programming pin 306 is provided on the bottom of the programmer 305.

[0027] Specifically, there are multiple placement plates 2, which are distributed equidistantly on the top surface of the fixture base 1. The electric slide rail 301 is electrically connected to the electric slider 302. The telescopic end of the electric push rod 304 passes through the top surface of the mounting plate 303 and is in fixed contact with the top of the programmer 305.

[0028] In this embodiment, the multiple arrangements of the placement plate 2 facilitate contact between the chip circuit board and the chip slot 201. With the cooperation of the electric slide rail 301 and the electric slider 302, the mounting plate 303 can be moved laterally. At the same time, driven by the electric push rod 304, the programmer 305 drives the programming pins 306 to contact and program the chip circuit board, thereby achieving the function of programming multiple chips sequentially.

[0029] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 3 The contact mechanism 4 includes a plate groove 401 and a limiting block 402. The plate groove 401 is opened on the top surface of the fixture seat 1. Limiting grooves 403 are opened on the inner walls of the left and right sides of the plate groove 401. A support compression spring 404 is fixedly installed on the inner wall of the bottom end of the plate groove 401. The limiting block 402 is fixedly installed on the left and right sides of the placement plate 2.

[0030] Specifically, the positions of the limiting block 402 and the limiting groove 403 are correspondingly set, the limiting block 402 and the limiting groove 403 slide in contact, the top of the supporting spring 404 is fixed to the bottom surface of the placement plate 2, and the supporting spring 404 is symmetrically distributed about the internal central axis of the plate groove 401.

[0031] In this embodiment, the limiting block 402 is mainly used to make sliding contact with the limiting groove 403, thereby limiting the displacement of the placement plate 2 and effectively preventing the placement plate 2 from moving laterally. The symmetrically distributed support springs 404 can lift the placement plate 2, effectively preventing excessive contact pressure between the programming pin 306 and the chip, thus meeting the chip programming requirements.

[0032] The working process of this utility model is as follows: When using a programming fixture, the chip circuit board is first moved and placed in the chip slot 201, thereby accommodating multiple chips. Then, with the combination of the electric slide rail 301 and the electric slider 302, the electric slider 302 moves laterally against the mounting plate 303. Simultaneously, the electric push rod 304 is activated, and its telescopic end extends, driving the programmer 305 downwards. The programmer 305 then brings the programming pins 306 closer to and into contact with the chip circuit board, facilitating the programming operation. During the process, the programming pin 306 applies contact pressure to the chip. Under the action of contact pressure, the placement plate 2 moves the limiting block 402 downward. With the limiting block 402 in close contact with the limiting groove 403, the stability of the placement plate 2 during the downward movement can be ensured, and the lateral displacement of the placement plate 2 can be avoided. As the placement plate 2 moves downward, the support spring 404 gradually contracts. When the support spring 404 contracts, it can absorb and disperse part of the contact pressure, thereby effectively reducing the contact pressure on the chip and avoiding damage to the chip caused by excessive contact pressure, which is conducive to improving the subsequent chip quality.

[0033] 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 programming jig, comprising a jig base (1), characterized in that: The top of the fixture base (1) is provided with a placement plate (2) and a mounting bracket (3). The top surface of the placement plate (2) is provided with a chip slot (201). The bottom inner wall of the chip slot (201) is provided with a through hole (2011). A contact mechanism (4) is provided between the placement plate (2) and the fixture base (1). An electric slide rail (301) is embedded in the front surface of the mounting bracket (3). An electric slider (302) is provided inside the electric slide rail (301). A mounting plate (303) is fixedly installed on the front side of the electric slider (302). An electric push rod (304) is provided on the top of the mounting plate (303). A programmer (305) is provided at the bottom of the mounting plate (303). A programming pin (306) is provided at the bottom of the programmer (305). The contact mechanism (4) includes a plate groove (401) and a limiting block (402). The plate groove (401) is opened on the top surface of the fixture seat (1). Limiting grooves (403) are opened on the inner walls of the left and right sides of the plate groove (401). A support compression spring (404) is fixedly installed on the inner wall of the bottom end of the plate groove (401). The limiting block (402) is fixedly installed on the left and right sides of the placement plate (2).

2. The programming fixture according to claim 1, characterized in that: There are multiple placement plates (2), and the multiple placement plates (2) are distributed equidistantly from left to right about the top surface of the fixture seat (1).

3. The programming fixture according to claim 1, characterized in that: The electric slide rail (301) is electrically connected to the electric slider (302).

4. The programming fixture according to claim 1, characterized in that: The telescopic end of the electric actuator (304) passes through the top surface of the mounting plate (303) and is in fixed contact with the top of the programmer (305).

5. A programming fixture according to claim 1, characterized in that: The positions of the limiting block (402) and the limiting groove (403) are correspondingly set, and the limiting block (402) and the limiting groove (403) slide in contact.

6. A programming fixture according to claim 1, characterized in that: The top end of the support spring (404) is fixed to the bottom surface of the placement plate (2), and the support spring (404) is symmetrically distributed about the inner central axis of the plate groove (401).

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