CN219434992U

CN219434992U - PCB testing arrangement convenient to adjust location

Info

Publication number: CN219434992U
Application number: CN202320213648.1U
Authority: CN
Inventors: 何毓贵; 马亚
Original assignee: Zhuhai Hejin Zhaofeng Electronic Technology Co ltd
Current assignee: Zhuhai Hejin Zhaofeng Electronic Technology Co ltd
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2023-07-28
Anticipated expiration: 2033-02-10

Abstract

The utility model discloses a PCB testing device convenient for adjusting and positioning, which comprises a rack, wherein a lifting plate and a driving component for driving the lifting plate to lift up and down are arranged on the rack, a probe module is arranged on the lifting plate, and a supporting and positioning component is arranged below the probe module on the rack; the support positioning assembly comprises a center support table and a circular ring support table which is arranged with the center support table along the same center axis, a plurality of support connecting rods are arranged on the center support table along the circumference uniformly distributed rotation, one ends of the support connecting rods are respectively arranged on the circular ring support table, limiting holes penetrate through the support connecting rods along the axial direction of the support connecting rods, positioning columns are movably arranged in the limiting holes, and fixing devices for vacuum adsorption and fixation with the frame are arranged on the positioning columns. After the position of the positioning column is adjusted according to the position of the positioning hole of the circuit board, the fixing device on the positioning column is fixed with the rack through vacuum adsorption, so that the circuit boards with different types are positioned.

Description

PCB testing arrangement convenient to adjust location

Technical Field

The utility model particularly relates to a PCB testing device convenient for adjusting and positioning.

Background

The names of the circuit boards are: ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, PCB boards, aluminum substrates, high frequency boards, thick copper plates, impedance boards, PCBs, ultra-thin circuit boards, printed (copper etching technology) circuit boards, and the like.

The present circuit board adjusts location like chinese patent publication No. CN218037188U discloses a test frame for circuit board test, and it discloses test pedestal, test mechanism and positioning mechanism, test mechanism connects on the test pedestal, positioning mechanism includes two loading boards, two the equal sliding connection of loading board is in on the test pedestal, every all be connected with a plurality of reference columns that are used for carrying out the location to the circuit board on the loading board. The test bench is provided with sliding grooves, two sliding blocks matched with the sliding grooves are fixedly connected to the bearing plates, and the two sliding blocks are slidably connected in the sliding grooves. The test bench is provided with two drive assemblies for driving the bearing plate to move, each drive assembly comprises a hand wheel and a bidirectional screw rod, each bidirectional screw rod is rotationally connected to the test bench, each hand wheel is fixedly connected with each bidirectional screw rod, each sliding block is in threaded connection with each bidirectional screw rod, and the threads of each sliding block and each bidirectional screw rod are opposite in rotation direction.

Based on the above, the current adjusting and positioning of the circuit board positioning column is realized by rotating the screw rod, so that the sliding block moves along the sliding groove along with the rotation of the screw rod, thereby driving the bearing plate to move and adjust the position of the positioning column, and meeting the positioning of circuit boards of different types. However, by adopting the above mode, when the position of the positioning column is adjusted, the screw rod needs to be manually and frequently rotated, the adjustment efficiency is low, meanwhile, the screw rod is a bidirectional screw rod, when the screw rod rotates, two bearing plates positioned on the same screw rod can synchronously move relatively close to or far away along with the rotation of the screw rod, and then the positioning columns on the two bearing plates synchronously adjust and move relatively close to or far away, and the adjustment mode can only meet the requirement of a circuit board with symmetrical positioning holes, and once the positioning holes on the circuit board are in an asymmetric state, the adjustment positioning mode is not applicable.

There is thus a need to provide a PCB testing device that facilitates adjustment of positioning to ameliorate the above problems.

Disclosure of Invention

Aiming at the defects existing in the prior art, the technical problems to be solved by the utility model are as follows: a PCB testing device is provided which is convenient for adjusting and positioning.

The PCB testing device convenient to adjust and position comprises a frame, wherein a lifting plate and a driving component for driving the lifting plate to lift up and down are arranged on the frame, a probe module is arranged on the lifting plate, and a supporting and positioning component is arranged below the probe module on the frame;

the support positioning assembly comprises a center support table and a circular ring support table which is arranged with the center support table along the same center axis, a plurality of support connecting rods are arranged on the center support table along the circumference uniformly distributed rotation, one ends of the support connecting rods are respectively arranged on the circular ring support table, limiting holes penetrate through the support connecting rods along the axial direction of the support connecting rods, positioning columns are movably arranged in the limiting holes, and fixing devices for vacuum adsorption and fixation with the frame are arranged on the positioning columns.

In one embodiment, the positioning column comprises a connecting shaft movably arranged in the limiting hole and a base body arranged at the lower end of the connecting shaft, the base body is provided with a concave cavity with a lower opening, the fixing device is arranged in the concave cavity, and the upper end of the connecting shaft is provided with a positioning pin.

In one embodiment, the fixing device comprises an electric telescopic rod, a vacuum chuck and a vacuum generator, wherein the electric telescopic rod is arranged in the concave cavity, the vacuum chuck is arranged at the telescopic rod end of the electric telescopic rod, and the vacuum generator is arranged on the frame and connected with the vacuum chuck.

In one embodiment, a plurality of balls are arranged at the lower end of the base body.

In one embodiment, the upper end of the connecting shaft is provided with a screw hole, and the positioning pin comprises a pin shaft matched with the positioning hole of the circuit board and a screw rod connected to the lower end of the pin shaft and matched with the screw hole.

In one embodiment, the upper end of the annular supporting table is concaved inwards to form an annular groove, a fixed shaft is arranged at the lower side of one end of the supporting connecting rod, and the fixed shaft is movably arranged in the annular groove.

In an embodiment, the drive component is including setting up in the pneumatic cylinder in the frame and setting up in the epaxial clamp plate of pneumatic cylinder drive, be located its four corners department in the frame and all be provided with vertical guide shaft, the clamp plate is located on the vertical guide shaft through linear bearing movable sleeve, the lifter plate is located on the vertical guide shaft through linear bearing movable sleeve, be located on the vertical guide shaft clamp plate with the spring has been cup jointed between the lifter plate, bilateral symmetry is provided with T type spacing axle on the lifter plate, the clamp plate is located on the T type spacing axle through linear bearing movable sleeve.

In summary, compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the support connecting rod is rotatably arranged on the central support table, one end of the support connecting rod is arranged on the annular support table, a plurality of support connecting rods are combined to form the support of the circuit board, and the positioning column is movably arranged in the limiting hole of the support connecting rod, so that the positioning column can move along the axial direction of the support connecting rod in the limiting hole while moving along with the rotation of the support connecting rod, and the adjustment movement of different positions of the positioning column is satisfied. After the position of the positioning column is adjusted according to the position of the positioning hole of the circuit board, the fixing device on the positioning column is fixed with the rack through vacuum adsorption, so that circuit boards of different types are met, and the positioning column can position the circuit boards of different types.

Drawings

FIG. 1 is a schematic perspective view of a PCB testing device with positioning adjustment in accordance with an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a positioning column according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a positioning post and a fixing device according to an embodiment of the present utility model;

fig. 4 is a schematic diagram showing a second perspective structure of a PCB testing apparatus for facilitating positioning adjustment according to an embodiment of the present utility model.

Detailed Description

The utility model is further described in the following description and detailed description with reference to the drawings:

as shown in fig. 1 to 4, an embodiment of the present utility model preferably provides a PCB testing apparatus for facilitating adjustment and positioning, which includes a frame 1, a lifting plate 2 and a driving member 3 for driving the lifting plate 2 to move up and down are provided on the frame 1, a probe module 4 is provided on the lifting plate 2, and a supporting and positioning assembly is provided on the frame 1 below the probe module 4; the support positioning assembly comprises a center supporting table 5 and a circular ring supporting table 6 which is arranged with the center supporting table 5 along the same central shaft, a plurality of support connecting rods 7 are arranged on the center supporting table 5 in a rotating mode along the circumference and uniformly distributed mode, one ends of the support connecting rods 7 are respectively arranged on the circular ring supporting table 6, limiting holes 8 penetrate through the support connecting rods 7 along the axial direction of the support connecting rods, positioning columns 9 are movably arranged in the limiting holes 8, and fixing devices 10 for vacuum adsorption fixation with the machine frame 1 are arranged on the positioning columns 9.

Specifically, when rotating the setting in central brace table through the support connecting rod, the one end of support connecting rod is taken up and is located on the ring brace table, and then a plurality of support connecting rod combination form the support of circuit board, and the rethread reference column activity sets up in the spacing downthehole of support connecting rod to when making the reference column can rotate along with the support connecting rod and remove, the reference column can be in the spacing downthehole axial displacement of support connecting rod of spacing, thereby satisfies the regulation removal of reference column different positions. When adjusting, the staff can take a circuit board as the debugging board, and the position of the locating column is moved according to the fast adjustment of the hole position of the locating hole of the circuit board, and then the locating hole of the circuit board and the locating column are positioned and placed, so that after the accurate position of the locating column is ensured, the fixing device on the locating column and the frame are used for vacuum adsorption and fixation, thereby realizing the fixed positioning after the adjustment of the locating column, further meeting the circuit boards with different models, and enabling the locating column to be capable of positioning the circuit boards with different models.

Further, the positioning column 9 includes a coupling shaft 91 movably disposed in the limiting hole 8, and a base 92 disposed at a lower end of the coupling shaft 91, the base 92 has a cavity 93 with a lower opening, the fixing device 10 is disposed in the cavity 93, and a positioning pin 94 is disposed at an upper end of the coupling shaft 91. Specifically, the connecting shaft is movably arranged in the limiting hole, so that the positioning column can move along the axial direction of the supporting connecting rod through the cooperation of the connecting shaft and the limiting hole while rotating along with the supporting connecting rod, and further, the arbitrary adjustment movement of the position of the positioning column in a specified area is realized.

Further, the fixing device 10 includes an electric telescopic rod 21, a vacuum chuck 22 and a vacuum generator 23, the electric telescopic rod 21 is disposed in the cavity 93, the vacuum chuck 22 is disposed at the telescopic rod end of the electric telescopic rod 21, and the vacuum generator 23 is disposed on the frame 1 and connected with the vacuum chuck 22. Specifically, the electric telescopic rod is used for driving the vacuum chuck to move up and down, so that the vacuum chuck is driven to descend and be attached to the surface of the frame, and the vacuum generator is used for driving the vacuum chuck to be adsorbed with the frame in vacuum, so that the adsorption and fixation of the positioning column are realized.

Further, a plurality of balls 24 are disposed at the lower end of the base 92. Specifically, through setting up the ball in order to reduce the frictional force with the frame surface when the pedestal removes.

Further, the upper end of the connecting shaft 91 is provided with a screw hole 25, and the positioning pin 94 includes a pin 41 for matching with a positioning hole of the circuit board, and a screw 42 connected to the lower end of the pin 41 for matching with the screw hole 25. Specifically, through setting up the screw to make the locating pin change according to the locating hole size of different model circuit boards, in order to satisfy the location demand of different locating hole sizes.

Further, the upper end of the annular supporting table 6 is concaved inwards to form an annular groove 61, a fixed shaft 71 is arranged at the lower side of one end of the supporting connecting rod 7, and the fixed shaft 71 is movably arranged in the annular groove 61, so that the stability of the supporting connecting rod structure is improved.

Further, the driving member 3 comprises a hydraulic cylinder 31 arranged on the frame 1 and a pressing plate 32 arranged on a driving shaft of the hydraulic cylinder 31, vertical guide shafts 33 are arranged at four corners of the frame 1, the pressing plate 32 is movably sleeved on the vertical guide shafts 33 through linear bearings, the lifting plate 2 is movably sleeved on the vertical guide shafts 33 through linear bearings, springs 34 are sleeved between the pressing plate 32 and the lifting plate 2 on the vertical guide shafts 33, T-shaped limiting shafts 35 are symmetrically arranged on two sides of the lifting plate 2, and the pressing plate 32 is movably sleeved on the T-shaped limiting shafts 35 through linear bearings. And then the buffer is realized by the spring when the pressing plate is pressed down.

While there has been shown and described what is at present considered to be the fundamental principles and the main features of the utility model and the advantages thereof, it will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, but is described in the foregoing description merely illustrates the principles of the utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as hereinafter claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a PCB testing arrangement convenient to adjust location, includes frame (1), be provided with lifter plate (2) and supply to drive lifter plate (2) oscilaltion removal drive member (3) on frame (1), be provided with probe module (4), its characterized in that on lifter plate (2): a supporting and positioning assembly is arranged below the probe module (4) on the frame (1);

the support positioning assembly comprises a center supporting table (5) and a circular ring supporting table (6) which is arranged with a center shaft by the center supporting table (5), wherein a plurality of support connecting rods (7) are rotationally arranged on the center supporting table (5) along the circumference uniformly distributed, one ends of the support connecting rods (7) are respectively arranged on the circular ring supporting table (6), limiting holes (8) are formed in the support connecting rods (7) in a penetrating mode along the axial direction of the support connecting rods, positioning columns (9) are movably arranged in the limiting holes (8), and fixing devices (10) for vacuum adsorption fixation with the frame (1) are arranged on the positioning columns (9).

2. The PCB testing apparatus for facilitating positioning adjustment of claim 1, wherein: the locating column (9) comprises a connecting shaft (91) movably arranged in the limiting hole (8) and a base body (92) arranged at the lower end of the connecting shaft (91), the base body (92) is provided with a concave cavity (93) with a lower opening, the fixing device (10) is arranged in the concave cavity (93), and a locating pin (94) is arranged at the upper end of the connecting shaft (91).

3. A PCB testing apparatus for facilitating positioning adjustment according to claim 2, wherein: the fixing device (10) comprises an electric telescopic rod (21), a vacuum sucker (22) and a vacuum generator (23), wherein the electric telescopic rod (21) is arranged in a concave cavity (93), the vacuum sucker (22) is arranged at the telescopic rod end of the electric telescopic rod (21), and the vacuum generator (23) is arranged on the frame (1) and is connected with the vacuum sucker (22).

4. A PCB testing apparatus for facilitating positioning adjustment according to claim 2, wherein: a plurality of balls (24) are arranged at the lower end of the base body (92).

5. A PCB testing apparatus for facilitating positioning adjustment according to claim 2, wherein: the upper end of the connecting shaft (91) is provided with a screw hole (25), and the positioning pin (94) comprises a pin shaft (41) matched with the positioning hole of the circuit board, and a screw rod (42) connected to the lower end of the pin shaft (41) and matched with the screw hole (25).

6. The PCB testing apparatus for facilitating positioning adjustment of claim 1, wherein: the upper end of the annular supporting table (6) is internally provided with an annular groove (61), the lower side of one end of the supporting connecting rod (7) is provided with a fixed shaft (71), and the fixed shaft (71) is movably arranged in the annular groove (61).

7. The PCB testing apparatus for facilitating positioning adjustment of claim 1, wherein: the driving component (3) comprises a hydraulic cylinder (31) arranged on the frame (1) and a pressing plate (32) arranged on a driving shaft of the hydraulic cylinder (31), vertical guide shafts (33) are arranged at four corners of the frame (1), the pressing plate (32) is movably sleeved on the vertical guide shafts (33) through linear bearings, the lifting plate (2) is movably sleeved on the vertical guide shafts (33) through linear bearings, springs (34) are sleeved between the pressing plate (32) and the lifting plate (2) on the vertical guide shafts (33), T-shaped limiting shafts (35) are symmetrically arranged on two sides of the lifting plate (2), and the pressing plate (32) is movably sleeved on the T-shaped limiting shafts (35) through the linear bearings.