CN217588048U

CN217588048U - Circuit board program burning device

Info

Publication number: CN217588048U
Application number: CN202221425538.3U
Authority: CN
Inventors: 郭军; 李锡美; 陆振涛; 李佳敏
Original assignee: Zhejiang Heda Technology Co ltd
Current assignee: Zhejiang Heda Technology Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-10-14
Anticipated expiration: 2032-06-09

Abstract

The utility model relates to a circuit board program burning field, in particular to a circuit board program burning device, which comprises a bottom plate, a bearing plate arranged on one side of the bottom plate side by side and a probe fixed on the bottom plate and pointing to the extension of the bearing plate; the probe comprises a base plate, a bearing plate and a probe pin, wherein a compression spring for supporting the bearing plate is arranged between the base plate and the bearing plate, the bearing plate is provided with an installation surface facing the base plate, a working surface deviating from the base plate and a burning hole channel communicated with the installation surface and the working surface, the probe pin extends into the burning hole channel, and the working surface is used for fixing a circuit board. The probe advances all the time in the burning hole, and the pointed position of probe is accurate, as long as make the signal end of circuit board aim at the export of burning hole on the working face when the installation circuit board, just can guarantee that the probe can accurately contact with the signal end of circuit board, only relies on compression spring just can realize supporting and driving the removal to the carriage plate, and the cost is lower.

Description

Circuit board program burning device

Technical Field

The utility model relates to a circuit board procedure burns record field, concretely relates to circuit board procedure burns record equipment.

Background

At present, a circuit board of an embedded electronic product is generally provided with a reserved program burning interface, so that the product program is convenient to update. The traditional burning method is carried out manually, an operator holds the pin headers with hands to align the probes with the signal connection points on the circuit board respectively, then applies certain pressure to enable the probes to be matched with the connection points, and therefore the purpose of electrical connection is achieved, and finally program burning is carried out. However, continuous and stable pressure needs to be provided, connection caused by shaking and fatigue of hands is extremely unstable, signal transmission is interrupted due to slight shaking of the circuit board, errors are easily caused while the working efficiency is low, and the program burning quality is affected. Therefore, processing equipment specially used for burning of circuit board programs appears in the market at present, and a circuit board program burning tool disclosed in the patent with the application number of CN202121295420.9 comprises a base, a fixed block and a plurality of probes, wherein the circuit board to be burned is positioned and matched on the base, the fixed block is in sliding fit on the base, the plurality of probes are arranged on the fixed block, and when the fixed block is buckled on the base, the probes are matched with the signal ends of the circuit board to be burned. The operation mode of the burning tool is that a circuit board to be burnt is positioned and matched on the base, the fixing block is pressed to move downwards, when the buckle is fastened on the base, the probe is matched with the signal connecting end on the circuit board, the purpose of signal connection is achieved, and burning is finally carried out. According to the device, the stable contact between the probe and the signal end of the circuit board is ensured through the buckling fixation between the fixing block and the base, so that the labor intensity of operators is reduced; however, in the patent, the probe starts to fall from a position far above the circuit board, in order to ensure that the probe can be aligned with a signal end of the circuit board, the fixed block is required not to generate a position error which deviates all around in the downward moving process, but also the probe is required not to be inclined relative to the fixed block, the position precision of the two aspects needs to be ensured simultaneously, the high requirement on the precision enables the structure cost to be improved, and in the actual operation process, the precision of the two aspects is difficult to avoid being influenced by other factors, and high uncertainty exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems, namely the technical problem to be solved by the utility model is to provide a circuit board program burning device, which comprises a bottom plate, a bearing plate arranged on one side of the bottom plate side by side and a probe fixed on the bottom plate and pointing to the extension of the bearing plate; the probe comprises a base plate, a bearing plate and a probe pin, wherein a compression spring for supporting the bearing plate is arranged between the base plate and the bearing plate, the bearing plate is provided with an installation surface facing the base plate, a working surface deviating from the base plate and a burning hole channel communicated with the installation surface and the working surface, the probe pin extends into the burning hole channel, and the working surface is used for fixing a circuit board.

As the utility model discloses a preferred, at least three compression spring is the circumference array and arranges and support the loading board.

As a preferred embodiment of the present invention, the present invention further comprises a first guiding assembly, the first guiding assembly comprises a fixing part fixed on the bottom plate and perpendicular to the first guide post of the loading plate, the loading plate is provided with a first guiding hole for the first guide post to pass through.

As the utility model discloses a preferred, first direction subassembly is still including fixing spacing portion on the first guide pillar, spacing position in deviate from on the loading board one side of bottom plate can block the loading board deviates from the bottom plate removes.

As the utility model discloses a preferred, the loading board be provided with two at least reference columns on the working face, the reference column is used for fixing a position the circuit board.

As the utility model discloses a preferred, still include extrusion subassembly and second direction subassembly, the extrusion subassembly include with the clamp plate that the loading board set up side by side, the clamp plate has the orientation the compressive plane of loading board with deviate from the stress surface of loading board, the second direction subassembly supplies the installation of extrusion subassembly can guide the extrusion subassembly orientation the loading board removes.

As the utility model discloses a preferred, it is directional to be provided with a plurality of on the extrusion face the extrusion post of loading board.

As a preferred choice, the second direction subassembly includes uide bushing and perpendicular to the second guide pillar of bottom plate, the second guiding hole has been seted up on the clamp plate, the uide bushing is fixed in the second guiding hole, the clamp plate passes through the uide bushing cover is established on the second guide pillar and can be followed the second guide pillar removes.

As the utility model discloses a preferably, still include drive arrangement, drive arrangement is including connecting the cylinder of clamp plate, the cylinder can promote the clamp plate orientation, deviate from the loading board removes.

As a preferred embodiment of the present invention, the driving device further includes a time relay connected to the cylinder, the time relay can control the duration of the pressure maintaining of the cylinder.

Has the beneficial effects that:

the probe always advances in the burning hole channel, the pointing position of the probe is accurate, the probe can be ensured to be accurately contacted with the signal end of the circuit board as long as the signal end of the circuit board is aligned to the outlet of the burning hole channel on the working surface when the circuit board is installed, the bearing plate does not need to reach a high precision grade in the moving process, the bearing plate can be supported and driven to move only by the compression spring, and the cost is low.

Drawings

Fig. 1 is a schematic diagram of the general structure of the circuit board program burning device;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a perspective view of the first and second guide assemblies;

FIG. 4 is a schematic view of the probe extending into the burning hole;

in the figure: 1. the device comprises a bottom plate, 2, a bearing plate, 21, a mounting surface, 22, a working surface, 23, a burning channel, 24, a positioning column, 3, a probe, 4, a compression spring, 5, a first guide assembly, 51, a first guide column, 52, a limiting part, 6, an extrusion assembly, 61, a pressing plate, 62, an extrusion column, 611, an extrusion surface, 612, a stress surface, 7, a second guide assembly, 71, a second guide column, 72, a guide sleeve, 8, an air cylinder, 9 and a circuit board.

Detailed Description

The following specific embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.

The utility model relates to a circuit board 9 program burning device, which comprises a bottom plate 1, a bearing plate 2 arranged on one side of the bottom plate 1 side by side and a probe 3 fixed on the bottom plate 1 and pointing to the bearing plate 2 to extend out; the utility model discloses a probe card, including bottom plate 1, loading board 2, probe 3, bottom plate 1 and be provided with between loading board 2 and support the compression spring 4 of loading board 2, loading board 2 has orientation bottom plate 1's installation face 21, deviate from bottom plate 1's working face 22 and communicate installation face 21 with the burning tunnel 23 of working face 22, probe 3 stretches into in burning tunnel 23, working face 22 is used for circuit board 9 fixed. In an initial state, the compression spring 4 supports the bearing plate 2 and keeps the bearing plate stable, the compression spring 4 still has a stroke capable of being compressed, the probe 3 extends into the burning hole channel 23 at the moment, and the burning end of the probe 3 is positioned in the burning hole channel 23 and has a certain distance with the working surface 22; when the device is used, the circuit board 9 to be burned is fixed on the working surface 22, then pressure is applied to the bearing plate 2, so that the bearing plate 2 overcomes the elastic force of the compression spring 4 and moves towards the bottom plate 1, in the process, the working surface 22 of the bearing plate 2 is close to the burning end of the probe 3, namely, the probe 3 extends towards the working surface 22 along the burning hole channel 23 until the burning end of the probe 3 is stably contacted with the signal end of the circuit board 9, and then program burning is carried out. In the process, the probe 3 always advances in the burning hole 23, the pointing position of the probe 3 is accurate, the probe 3 can be ensured to be accurately contacted with the signal end of the circuit board 9 as long as the signal end of the circuit board 9 is aligned with the outlet of the burning hole 23 on the working surface 22 when the circuit board 9 is installed, the bearing plate 2 does not need to reach a high precision level in the moving process, the bearing plate 2 can be supported and driven to move only by the compression spring 4, and the cost is low; even if the bearing plate 2 slightly deviates towards other directions due to the distortion of the compression spring 4 in the advancing process, the probe 3 is always aligned to the signal end of the circuit board 9 through the burning hole channel 23 and cannot be influenced by the position deviation of the bearing plate 2.

Under the condition of only relying on the compression springs 4, not only the stable support of the bearing plate 2 is ensured, but also the position deviation of the bearing plate 2 towards other directions is reduced, so that at least three compression springs 4 are preferably arranged in a circumferential array in the embodiment, and the bearing plate 2 is supported comprehensively and uniformly. Although the basic support of the carrier plate 2 is achieved by the compression spring 4 and a slight positional offset of the carrier plate 2 due to the deflection of the compression spring 4 does not affect the probe 3 being always aligned with the signal end of the circuit board 9, such an offset may cause shear stress to the probe 3, possibly resulting in a break of the probe 3. Therefore, the present embodiment preferably further includes a first guiding assembly 5, the first guiding assembly 5 includes a first guide post 51 fixed on the bottom plate 1 and perpendicular to the supporting plate 2, a first guiding hole for the first guide post 51 to pass through is formed on the supporting plate 2, the movement of the supporting plate 2 towards or away from the bottom plate 1 is always along the first guide post 51, the supporting plate 2 will not deviate in other directions except the moving direction, and the probe 3 is prevented from being subjected to shear stress; on the other hand, the bearing plate 2 is sleeved on the first guide post 51 through the first guide hole, and the inner wall of the first guide hole completely abuts against the outer wall of the first guide post 51, so that the bearing plate 2 is always kept in a state perpendicular to the first guide post 51 without being inclined, and is always parallel to the bottom plate 1 in parallel in the moving process of the bearing plate 2, and therefore when a plurality of signal ends on the circuit board 9 need to respectively correspond to different probes 3 to burn programs, it can be ensured that each group of probes 3 is in synchronous contact with the signal ends. After the burning is finished, the pressure applied to the bearing plate 2 is removed, the compression spring 4 is reset, the bearing plate 2 is pushed to move away from the bottom plate 1, and then the circuit board 9 is replaced; in this embodiment, it is preferable that the first guiding assembly 5 further includes a limiting portion 52 fixed on the first guiding post 51, the limiting portion 52 is located on one side of the bearing plate 2 deviating from the bottom plate 1 and can block the bearing plate 2 deviating from the bottom plate 1 to move, when the compression spring 4 resets to push the bearing plate 2, the bearing plate 2 moves to the working surface 22 and stops when abutting against the limiting portion 52, it is not necessary to wait for the compression spring 4 to reach a complete reset state, the moving stroke of the bearing plate 2 is reduced, the processing efficiency is improved, and the existence of the limiting portion 52 also further improves the stability of the bearing plate 2, so as to facilitate the replacement of the subsequent circuit board 9.

The circuit board 9 is fixed on the working face 22 of the bearing plate 2, the requirement on the fixing firmness degree is low, the contact with the probe 3 can be ensured without moving, and the replacement is convenient, therefore, the embodiment is preferred that the working face 22 of the bearing plate 2 is provided with at least two positioning columns 24, the positioning columns 24 realize simple positioning and fixing through the form surrounding the circuit board 9, and the replacement of the circuit board 9 is also very convenient. The mode of manual pressing can be adopted in the promotion to loading board 2, also can adopt special press device, if take the manual mode of pressing then the application of force is unbalanced, probably leads to the contact between the signal end of probe 3 and circuit board 9 can't reach suitable degree, burns the process moreover and need keep pressing to loading board 2, and the manual work is difficult to satisfy the requirement. Therefore, the present embodiment preferably further includes a squeezing assembly 6 and a second guiding assembly 7, the squeezing assembly 6 includes a pressing plate 61 arranged alongside the bearing plate 2, the pressing plate 61 has a squeezing surface 611 facing the bearing plate 2 and a force-bearing surface 612 facing away from the bearing plate 2, and the second guiding assembly 7 is provided for the squeezing assembly 6 to be mounted and can guide the squeezing assembly 6 to move towards the bearing plate 2; the moving direction of the pressing plate 61 is perpendicular to the bearing plate 2, and when the pressing plate 61 moves to abut against the bearing plate 2, the whole pressing surface 611 applies pressure to the bearing plate 2, so that the balance of the applied force is ensured. Because the circuit board 9 is fixed on the working surface 22 of the supporting board 2, if the pressing plate 61 is directly attached to the supporting board 2 through the pressing surface 611, there is a pressure on the circuit board 9, which may affect the circuit board 9, and therefore, it is further improved that a plurality of pressing posts 62 pointing to the supporting board 2 are preferably disposed on the pressing surface 611, and the pressing plate 61 abuts against the supporting board 2 through the pressing posts 62, so as to avoid the contact between the whole pressing surface 611 and the supporting board 2. In this embodiment, the second guiding assembly 7 includes a guiding sleeve 72 and a second guiding post 71 perpendicular to the bottom plate 1, a second guiding hole is formed in the pressing plate 61, the guiding sleeve 72 is fixed in the second guiding hole, the pressing plate 61 is sleeved on the second guiding post 71 through the guiding sleeve 72 and can move along the second guiding post 71, friction between the guiding sleeve 72 and the second guiding post 71 is small, and moving efficiency of the pressing plate 61 is improved.

The power of clamp plate 61 can be applyed by the manpower, also can take power device, and this embodiment is preferred still includes drive arrangement, drive arrangement is including connecting the cylinder 8 of clamp plate 61, cylinder 8 can promote clamp plate 61 orientation 2 removal of loading board also can promote the clamp plate 61 deviates from 2 removals of loading board guarantee accurate, reliable of thrust to guarantee to burn the record quality, 8 drive efficiency height of cylinder moreover. The program burning process after the probe 3 is contacted with the signal end of the circuit board 9 mainly has a certain duration, so that the cylinder 8 is required to continuously maintain the pressure of the extrusion assembly 6 on the bearing plate 2, and the burning durations required by different program locks are different, therefore, the driving device further comprises a time relay connected with the cylinder 8, the time relay can control the pressure maintaining duration of the cylinder 8, and the pressure maintaining duration of the cylinder 8 is adjusted by setting the time in the time relay when the driving device is used, so that the burning of different programs is met.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A circuit board program burning device is characterized by comprising a bottom plate (1), bearing plates (2) arranged on one side of the bottom plate (1) side by side and probes (3) fixed on the bottom plate (1) and extending towards the bearing plates (2); bottom plate (1) with be provided with between loading board (2) and support compression spring (4) of loading board (2), loading board (2) have the orientation installation face (21), the deviation of bottom plate (1) working face (22) and the intercommunication installation face (21) with burning record pore (23) of working face (22), probe (3) stretch into burn record in pore (23), working face (22) are used for the circuit board fixed.

2. The device for programming circuit boards according to claim 1, wherein at least three compression springs (4) are arranged in a circumferential array and support the carrier plate (2).

3. The device for burning circuit board program according to claim 1, further comprising a first guiding assembly (5), wherein the first guiding assembly (5) comprises a first guiding post (51) fixed on the bottom plate (1) and perpendicular to the carrier plate (2), and the carrier plate (2) is provided with a first guiding hole for the first guiding post (51) to pass through.

4. The device for burning circuit board programs according to claim 3, wherein the first guiding assembly (5) further comprises a limiting portion (52) fixed on the first guiding post (51), the limiting portion (52) is located on a side of the carrying board (2) away from the bottom board (1) and can block the carrying board (2) from moving away from the bottom board (1).

5. The device for burning circuit board programs according to claim 1, wherein at least two positioning posts (24) are disposed on the working surface (22) of the bearing plate (2), and the positioning posts (24) are used for positioning a circuit board.

6. The device for burning the circuit board program according to claim 1, further comprising a pressing assembly (6) and a second guiding assembly (7), wherein the pressing assembly (6) comprises a pressing plate (61) which is arranged side by side with the bearing plate (2), the pressing plate (61) has a pressing surface (611) facing the bearing plate (2) and a force bearing surface (612) facing away from the bearing plate (2), and the second guiding assembly (7) is used for the pressing assembly (6) to be installed and can guide the pressing assembly (6) to move towards the bearing plate (2).

7. The device for programming circuit board programs as recited in claim 6, wherein the pressing surface (611) is provided with a plurality of pressing posts (62) pointing to the carrier plate.

8. The device for burning the circuit board program according to claim 6, wherein the second guiding assembly comprises a guiding sleeve (72) and a second guiding post (71) perpendicular to the bottom plate (1), a second guiding hole is formed in the pressing plate (61), the guiding sleeve (72) is fixed in the second guiding hole, and the pressing plate (61) is sleeved on the second guiding post (71) through the guiding sleeve (72) and can move along the second guiding post (71).

9. The device for burning the circuit board program according to claim 8, further comprising a driving device, wherein the driving device comprises a cylinder (8) connected to the pressing plate (61), and the cylinder (8) can push the pressing plate (61) to move towards and away from the bearing plate (2).

10. The apparatus for programming circuit boards according to claim 9, wherein the driving device further comprises a time relay connected to the cylinder (8), the time relay being capable of controlling the dwell time of the cylinder (8).