CN204595020U - Automatically upspring, self-locking and on push away floating mechanism for testing - Google Patents

Abstract

Title of the present utility model is automatically upspring, self-locking and on push away floating mechanism for testing, the utility model is made up of upper framework and lower framework, be provided with two groups of different pneumatic elements in two frameworks simultaneously, reduce the working strength of manpower, upper framework utilizes sensor (7) to feel the upper framework pneumatic element (2) of control, and lock (27) is moved, utilize the position of Fastener (8) and lock (27) to coordinate realize self-locking and automatically upspring, lower framework directly utilizes the upper needle pushing plate (23) of lower framework pneumatic element (1), support plate (21) is made to be in quick condition, ensure the location of test pcb board.The utility model can be used for the pcb board test of volume production.

Description

Automatic pop-up, self-locking and push-up floating test mechanism

technical field

The utility model relates to a mechanical structure, in particular to a mechanism which utilizes pneumatic elements to realize automatic bounce-up, self-locking and push-up floating.

Background technique

The electronics industry will design corresponding fixtures for testing electronic circuit integrated boards (PCB boards) to achieve mass production. For this kind of fixture design, it is necessary to ensure the test stability of the fixture, and then effectively improve production efficiency on this basis. The market In general, there are many types of PCB boards, and corresponding fixtures need to be made for different products. In order to reduce costs and ensure customer delivery, it is necessary to provide a common architecture and change the core part of the design to ensure the versatility of the fixture, and Cost saving, and there are already many designs for this general architecture on the market, most of which are manually controlled and tested, so that although the cost is reduced, a lot of manpower is required. With the increase of manpower cost , semi-automatic and full-automatic fixtures have become the choice that can better meet the needs of customers. The utility model provides a semi-automatic fixture that can realize the actions of automatic pop-up, self-locking and push-up floating, and while realizing these actions, reduce cost and improve efficiency.

Contents of the invention

The purpose of this utility model is: to provide a mechanical mechanism that uses pneumatic components to automatically realize a series of actions such as automatic pop-up, self-locking, and push-up floating, which is suitable for all PCB board tests without special requirements in the industry, ensuring product testing Accurate and reliable, and improve the efficiency of mass production testing of PCB boards.

The technical solution of the utility model is: the mechanism adopts the concept of layered design, and the mechanism is divided into an upper frame and a lower frame, and the lower frame mainly includes pneumatic components, an upper push plate, a needle plate and a carrier plate.

A support plate is set in the upper structure, and a large through slot is designed in the support plate to ensure the movement of the carrier plate. A set of pneumatic components are equipped on both sides of the support plate to drive the mechanism. At the same time, a fixed frame is set on the side of the pneumatic component to fix The frame is composed of left and right fixing plates, front fixing plate, rear fixing plate and cover plate. A clamping part is arranged under the fixing frame. The clamping part cooperates with the locking column protruding from the pneumatic element to realize the self-locking and automatic spring-up of the mechanism. Action, set the sensor on the support plate directly below the clamping part to sense the self-locking or automatic pop-up action of the cylinder, set the nitrogen spring above the side of the fixed frame, the force and speed of the automatic pop-up of the buffer mechanism, and fix the frame at the same time There is a handle directly above the , which provides a strong point for manual pressing.

The upper push plate is set in the lower structure, and a group of pneumatic components are set under the two sides of the upper push plate to provide the source power of the upper push plate. There is a large slot in the upper push plate, which provides space for the placement of the needle plate. The board is installed on the upper push plate, and the carrier board and the needle board are connected by contour screws to form a certain gap. It is in a floating state within the range. In order to ensure the accuracy of the relative position of the needle plate and the carrier plate, it is necessary to install a guide mechanism on the two parts. replacement and maintenance purposes.

The beneficial effect of the utility model is that a series of actions such as automatic bouncing, self-locking, push-up floating and the like are realized by using the pneumatic components and the partially optimized mechanical structure, and a simple, convenient and fast semi-automatic PCB board test fixture is provided.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment:

Fig. 1 is an overall effect diagram of the utility model in a closed state.

Fig. 2 is an overall rendering of the utility model in an open state.

FIG. 3 is a layered architecture diagram of the present invention.

Fig. 4 is an overall rendering of the upper structure of the utility model in an open state.

Fig. 5 is a front view of the upper frame in the closed state of the utility model.

Fig. 6 is a front view of the lower frame of the present invention.

FIG. 7 is an overall effect diagram of the lower structure of the present invention.

Fig. 8 is a front view of the utility model during testing.

Among them: 1 Pneumatic components of the lower structure, 2 Pneumatic components of the upper structure, 3 Support plates, 4 Nitrogen springs, 5 Left and right fixing plates, 6 Pneumatic component fixing parts, 7 Sensors, 8 Clamping parts, 9 Front fixing plates, 10 Handles, 11 Rear fixed plate, 12 cover plate, 13 pressure rod, 14 bearing, 15 guide shaft, 16 upper structure, 17 lower structure, 18 upper push plate, 19 movable shaft of pneumatic components, 20 fasteners, 21 carrier plate, 22 pins Plate fasteners, 23 needle plates, 24 guide shaft fasteners, 25 carrier plate guide shafts, 26 carrier plate bearings, 27 lock columns, 28 contour screws.

Detailed ways

As shown in Figures 1, 2, and 3, the mechanism is left-right symmetrical and consists of an upper frame 16 and a lower frame 17. When the mechanism is in the open state, the operator puts the PCB board to be tested into the mechanism, holds the handle 10 tightly, and closes the upper frame 16. After that, the pneumatic components and other connecting parts are controlled by instructions to realize self-locking and automatic springing. Actions such as lifting and pushing up the floating test.

As shown in Figures 4 and 5, the upper structure is mainly composed of a fixed frame, a pneumatic element 2, a nitrogen spring 4 and a support plate 3, and the fixed frame is composed of a left and right fixed plate 5, a front fixed plate 9, a rear fixed plate 11, and a cover plate 12 Composition, when the clamp is closed, the pressure rod 13 on the cover 12 will move with the movement, thereby pressing the PCB board on the carrier board to achieve the test effect, when the clamp is closed, the locking member 8 moves , when the locking member 8 is not moving (that is, when it is in a horizontal state), the sensor 7 located directly below it will detect the locking member 8, and form a signal to send to the pneumatic element 2, and make the pneumatic element 2 move, thereby Drive the lock column 27 on the pneumatic element 2 to move, and due to the special shape of the locking member 8, the entire upper cover part will no longer move, and the self-locking effect will be realized. When the test is over, the signal sent from the software notifies the pneumatic component 2 to move, thereby driving the lock cylinder 27 to move, so that the locking member 8 is released, and the nitrogen spring 4 arranged on both sides relieves the springing force, thereby ensuring the effect of automatic springing .

As shown in Figures 6 and 7, the lower structure is mainly composed of the pneumatic component 1, the upper push plate 18, the needle plate 23, and the carrier plate 21. This part is connected with the upper structure 16 through the fastener 20. When the pneumatic component 1 receives When the signal moves, the upper push plate 18 moves. Since the upper push plate 18 is connected with the needle plate 23, the needle plate 23 is driven to move. The board 23 also moves accordingly, so that the carrier board 21 floats accordingly, thereby ensuring the positioning of the PCB board. A series of linkages realizes the push-up action of the entire mechanism. Since the needle board 23 and the carrier board 21 belong to the core part of the entire testing mechanism , this part can be changed according to the change of customer demand, so the needle plate 23 and the carrier plate 21 can be taken out through the needle plate fixing part 22, which is convenient for maintenance.

As shown in Figure 8, the upper frame 16 and the lower frame 17 are connected by fasteners 20, and are guided by bearings 14 and guide shafts 15 to ensure the positional relationship between the upper push plate 18 and the support plate, thereby ensuring the upper and lower structures The position is accurate and the positioning error is reduced. When the pressure bar 13 is turned over to press down the product, the upper structure cylinder 2 realizes self-locking, and the lower structure cylinder 1 pushes the needle plate 23 to move, so that the carrier plate 21 floats, thereby ensuring the needle plate 23. The probe is well connected to the PCB board to achieve effective testing.

Of course, the utility model is aimed at the mechanism of automatic pop-up, self-locking and push-up by using pneumatic components, and is not limited to the specific structure of the above-mentioned embodiment. In a word, the protection scope of the present utility model shall include those transformations and modifications obvious to those skilled in the art.

Claims (4)

1. An automatic pop-up, self-locking and push-up floating test mechanism, which mainly uses pneumatic components to realize the actions of automatic pop-up, self-locking and push-up floating. The mechanism is composed of an upper frame (16) and a lower frame (17) A group of upper frame pneumatic components (2) are equipped on both sides of the support plate (3) in the upper frame (16), a fixed frame is arranged on the side of the upper frame pneumatic component (2), and a lock column ( 27), the clamping part (8) is set under the fixed frame, the sensor (7) is set on the support plate (3) directly below the clamping part (8), the nitrogen spring (4) is set above the side of the fixed frame, and the The handle (10), the upper push plate (18) in the lower structure (17) is provided with a group of lower structure pneumatic components (1), the needle plate (23) is installed on the upper push plate (18), the carrier plate (21) and The needle plate (23) is connected by contour screws (28), and is characterized in that pneumatic components are arranged in the upper and lower structures. 2. The automatic pop-up, self-locking and push-up floating test mechanism according to claim 1, characterized in that the clamping member (8) clamps the locking cylinder (27) protruding from the pneumatic component (2), realizing Self-locking. 3. The automatic pop-up, self-locking and push-up floating test mechanism according to claim 1, characterized in that the carrier plate (21) and the needle plate (23) are connected by contour screws (28), and when moving, The carrier board (21) can be in a floating state. 4. The automatic pop-up, self-locking and push-up floating test mechanism according to claim 1, characterized in that the carrier plate (21) and the needle plate (23) can form an integral body and be independent from the mechanism.