CN221746228U - PCB board frock testboard - Google Patents

Abstract

The utility model discloses a PCB (printed circuit board) tool test board, in particular to the field of PCB test, which comprises the following steps: the detection platform is provided with a detection mechanism, and the detection mechanism comprises a plurality of detection probes capable of vertically and vertically moving; still include fixture, fixture is including placing the platform, places the platform and installs on the detection platform, and places the platform and be located a plurality of detection probes under, places the platform and slide and be provided with two slide bars, all installs elastic component one on two slide bars, and two elastic component one all installs on the inner wall of placing the platform, and splint are all installed to the one end of two slide bars. According to the utility model, the locking mechanism is arranged, after the PCB to be detected is clamped and fixed, the position of the clamping plate is locked, so that the problem that the stability of the PCB to be detected is affected due to vibration caused by the fixation of the clamping plate during detection is avoided, the stability of the PCB to be detected during detection is ensured, and the detection precision is improved.

Description

A PCB board tooling test bench

Technical Field

The utility model relates to the technical field of PCB board testing, and more specifically, to a PCB board tooling testing table.

Background Art

PCB board is a basic component used to support and connect electronic components. It is usually made of insulating material and covered with conductive paths. It is used to conduct current, connect components and realize circuit functions. PCB boards need to be tested during the production process to ensure product quality.

At present, the test of PCB boards usually adopts the method of probe contact to detect the PCB boards, and the PCB boards need to be fixed by a fixture before the test to prevent the movement of the PCB boards during the test from affecting the test results. After searching, a Chinese patent with the authorization announcement number CN219245608U discloses a PCB board test fixture, which realizes the rapid clamping and fixing of the PCB board by two clamping plates that can be pulled away from each other and can be reset close to each other under the action of a spring.

However, in the above design, the PCB board is clamped and fixed by a spring and a clamp. When the detection probe contacts the PCB board, even if there are actually tiny bumps or irregularities on the surface of the PCB board, this will cause vibration during contact. The spring is prone to relative movement between the spring and the clamp due to vibration, resulting in uneven clamping force on both sides of the PCB board, affecting the stability of the PCB board clamping, and further causing problems affecting the detection results.

Utility Model Content

The utility model provides a PCB board tooling test bench to solve the problem that in the prior art, the PCB board is clamped and fixed by springs and clamps, which easily causes vibration during the detection process, affects the stability of the PCB board clamping, and further leads to the problem of affecting the detection result.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PCB board tooling test bench, comprising: a detection table, a detection mechanism is installed on the detection table, the detection mechanism includes a plurality of detection probes that can move vertically; also includes a clamping mechanism, the clamping mechanism includes a placement table, the placement table is installed on the detection table, and the placement table is located directly below the plurality of detection probes, two sliding rods are slidably arranged in the placement table, elastic parts are installed on the two sliding rods, the two elastic parts are installed on the inner wall of the placement table, one end of the two sliding rods is installed with a clamping plate, and the two clamping plates can move synchronously towards or away from each other; also includes a clamping drive mechanism, the clamping drive mechanism includes a rotating shaft, the rotating shaft rotates to drive the two clamping plates to move towards or away from each other; also includes a locking mechanism, the locking mechanism includes a positioning shaft and a positioning groove, the positioning shaft is inserted into the positioning groove, and the locking mechanism is used to lock the rotating shaft.

In a preferred embodiment, the clamping drive mechanism also includes a handwheel, which is fixedly mounted on the end of the rotating shaft. The handwheel is fixedly mounted on the end of the rotating shaft away from the placing table. A connecting rod is fixedly mounted on the end of the rotating shaft away from the handwheel. Two push rods are hinged on the connecting rod, and the other ends of the two push rods are respectively hinged to the corresponding sliding rods.

In a preferred embodiment, the locking mechanism also includes a slider, which is slidably connected in the handwheel, and a second elastic member and a push block are fixedly provided on the slider, the push block is in sliding contact with the outer surface of the handwheel, and the positioning shaft is fixedly provided on the slider.

In a preferred embodiment, there are multiple positioning grooves, which are arranged in a circular array on the placement table, and the positioning shafts are inserted into the corresponding positioning grooves.

In a preferred embodiment, the detection mechanism further includes a driving member, an output end of the driving member is fixedly connected to a lifting plate, and a plurality of detection probes are installed at the bottom of the lifting plate.

In a preferred embodiment, the clamping mechanism further includes two protection pads, and the two protection pads are respectively fixedly arranged on the adjacent sides of the two clamping plates.

The beneficial effects of the utility model are:

The utility model provides a locking mechanism to lock the position of the clamping plate after the PCB to be detected is clamped and fixed, thereby avoiding the problem of affecting the clamping stability of the PCB to be detected due to vibration caused by fixing with a spring during detection, thereby ensuring the stability of the PCB to be detected during detection and improving its detection accuracy.

The utility model provides a clamping drive mechanism so that the synchronous movement of the two clamping plates can be achieved by rotating the hand wheel, thereby facilitating the clamping of the PCB board to be tested.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of the utility model.

FIG. 2 is a schematic diagram of a front cross-sectional structure of a placement table of the present invention.

FIG. 3 is an enlarged view of portion A in FIG. 1 .

FIG. 4 is a perspective schematic diagram of the locking mechanism of the present invention.

FIG5 is a schematic cross-sectional view of the locking mechanism of the present invention.

The accompanying drawings are marked as follows: 1. detection table; 2. detection mechanism; 21. driving member; 22. lifting plate; 23. detection probe; 3. clamping mechanism; 31. placement table; 32. sliding rod; 33. clamping plate; 331. protective pad; 34. elastic member 1; 4. clamping drive mechanism; 41. rotating shaft; 42. hand wheel; 43. connecting rod; 44. push rod; 5. locking mechanism; 51. sliding block; 52. elastic member 2; 53. positioning shaft; 54. push block; 55. positioning groove.

DETAILED DESCRIPTION

The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

Referring to Figures 1 to 5 of the specification, a PCB board tooling test bench includes: a detection table 1, on which a detection mechanism 2 is installed, and the detection mechanism 2 includes a plurality of detection probes 23 that can move vertically; it also includes a clamping mechanism 3, the clamping mechanism 3 includes a placement table 31, the placement table 31 is installed on the detection table 1, and the placement table 31 is located directly below the plurality of detection probes 23, two slide bars 32 are slidably arranged in the placement table 31, and elastic members 34 are installed on the two slide bars 32, and the two elastic members 34 are installed on the inner wall of the placement table 31, and a clamping plate 33 is installed at one end of the two slide bars 32, and the two clamping plates 33 can move synchronously close to or away from each other; it also includes a clamping drive mechanism 4, the clamping drive mechanism 4 includes a rotating shaft 41, and the rotating shaft 41 rotates to drive the two clamping plates 33 to move close to or away from each other; it also includes a locking mechanism 5, the locking mechanism 5 includes a positioning shaft 53 and a positioning groove 55, the positioning shaft 53 is inserted in the positioning groove 55, and the locking mechanism 5 is used to lock the rotating shaft 41.

It should be noted that the elastic member 34 is a spring, and the clamping drive mechanism 4 drives the two clamping plates 33 to move toward or away from each other synchronously, so that the two clamping plates 33 maintain opposite movement directions and the same movement distance.

The specific implementation scenario is as follows: the clamping drive mechanism 4 drives the two clamps 33 to move away from each other, so that the two clamps 33 squeeze the corresponding springs through the two sliding rods 32 during the movement, and then the PCB board to be inspected is placed on the placement table 31, and then the two clamps 33 can be reset by moving closer together through the elastic deformation of the springs, and the PCB board to be inspected is clamped and fixed by the two clamps 33, and then the locking mechanism 5 locks the rotating shaft 41, so that the two clamps 33 can be positioned and fixed by locking the rotating shaft 41, avoiding the problem of vibration caused by the elastic fixation of the spring when the detection probe 23 contacts the PCB board to be inspected, resulting in affecting the clamping stability of the PCB board to be inspected, thereby ensuring the detection accuracy, and then driving multiple detection probes 23 to move downward to detect the PCB board to be inspected.

Furthermore, as shown in Figures 2 and 3, the clamping drive mechanism 4 also includes a handwheel 42, which is fixedly mounted on the end of the rotating shaft 41. The handwheel 42 is fixedly mounted on the end of the rotating shaft 41 away from the placement table 31, and a connecting rod 43 is fixedly mounted on the end of the rotating shaft 41 away from the handwheel 42. Two push rods 44 are hinged on the connecting rod 43, and the other ends of the two push rods 44 are respectively hinged to the corresponding sliding rods 32.

It should be noted that, by rotating the hand wheel 42 to drive the rotating shaft 41 to rotate, the rotating shaft 41 drives the connecting rod 43 to rotate, so that the two sliding rods 32 can be pushed to move away from each other by the two push rods 44 hinged to the rotating shaft 41, and the corresponding elastic member 34 can be squeezed to make the two clamping plates 33 move away from each other. After the PCB board to be inspected is placed on the placement table 31, the hand wheel 42 is released, and the elastic deformation of the elastic member 34 can be used to drive the two clamping plates 33 to move closer and reset, thereby clamping the PCB board to be inspected, and conveniently driving the two clamping plates 33 to move synchronously, thereby facilitating the clamping and fixation of the PCB board to be inspected.

Furthermore, as shown in Figures 4 and 5, the locking mechanism 5 also includes a slider 51, which is slidably connected to the hand wheel 42, and an elastic member 52 and a push block 54 are fixedly provided on the slider 51. The push block 54 is in sliding contact with the outer surface of the hand wheel 42, and the positioning shaft 53 is fixedly provided on the slider 51.

It should be noted that the second elastic member 52 is a spring. When the hand wheel 42 is rotated, the push block 54 is slid first, so that the push block 54 drives the slider 51 to move, and at the same time, the spring is squeezed and the positioning shaft 53 is driven to slide out of the positioning groove 55, so that the fixation of the hand wheel 42 can be released, and then the movable clamping plate 33 is adjusted by rotating the hand wheel 42. After the PCB board to be tested is clamped, the push block 54 is released, so that under the elastic force of the spring, the positioning shaft 53 is reset and slides into the positioning groove 55, and the hand wheel 42 can be positioned and locked, thereby realizing the positioning locking of the rotating shaft 41 and the two clamping plates 33, so that it can avoid the problem of the clamping stability of the PCB board to be tested being affected by vibration during the detection process by the elastic fixation of the spring.

Furthermore, as shown in FIG. 3 , there are a plurality of positioning grooves 55 , which are arranged in a circular array on the placement table 31 , and the positioning shafts 53 are inserted into corresponding positioning grooves 55 .

It should be noted that, through the positioning grooves 55 arranged in a ring array, the positioning shaft 53 can easily achieve positioning and locking of the rotating shaft 41 .

Furthermore, as shown in FIG. 1 , the detection mechanism 2 further includes a driving member 21 , an output end of the driving member 21 is fixedly connected to a lifting plate 22 , and a plurality of detection probes 23 are all installed at the bottom of the lifting plate 22 .

It should be noted that the driving member 21 is a cylinder, which drives the lifting plate 22 to drive the detection probe 23 to move up and down, so as to facilitate the detection of the PCB board to be detected.

Furthermore, as shown in FIG. 2 , the clamping mechanism 3 further includes two protection pads 331 , and the two protection pads 331 are respectively fixedly disposed on the adjacent sides of the two clamping plates 33 .

It should be noted that the protective pad 331 is a rubber pad. When the PCB board to be tested is clamped, the rubber pad can protect the edge of the PCB board to be tested to avoid excessive clamping force causing wear on the edge of the PCB board to be tested.

The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims (6)

1. A PCB board tooling test bench, characterized in that it comprises: a test bench (1), a test mechanism (2) is installed on the test bench (1), and the test mechanism (2) comprises a plurality of test probes (23) that can move vertically; The clamping mechanism (3) also includes a placement table (31), the placement table (31) is mounted on the detection table (1), and the placement table (31) is located directly below the plurality of detection probes (23), two sliding rods (32) are slidably arranged in the placement table (31), and elastic members (34) are both mounted on the two sliding rods (32), and the two elastic members (34) are both mounted on the inner wall of the placement table (31), and a clamping plate (33) is mounted on one end of the two sliding rods (32), and the two clamping plates (33) can move synchronously toward or away from each other; The device also includes a clamping drive mechanism (4), wherein the clamping drive mechanism (4) includes a rotating shaft (41), and the rotating shaft (41) rotates to drive the two clamping plates (33) to move closer to or away from each other; It also comprises a locking mechanism (5), which comprises a positioning shaft (53) and a positioning groove (55), the positioning shaft (53) is inserted into the positioning groove (55), and the locking mechanism (5) is used to lock the rotating shaft (41). 2. A PCB board tooling test bench according to claim 1, characterized in that: the clamping drive mechanism (4) also includes a handwheel (42), the handwheel (42) is fixedly mounted on the end of the rotating shaft (41), the handwheel (42) is fixedly mounted on the end of the rotating shaft (41) away from the placement table (31), and a connecting rod (43) is fixedly mounted on the end of the rotating shaft (41) away from the handwheel (42), and two push rods (44) are hinged on the connecting rod (43), and the other ends of the two push rods (44) are respectively hinged to the corresponding sliding rods (32). 3. A PCB board tooling test bench according to claim 2, characterized in that: the locking mechanism (5) also includes a slider (51), the slider (51) is slidably connected in the hand wheel (42), an elastic member 2 (52) and a push block (54) are fixedly arranged on the slider (51), the push block (54) is in sliding contact with the outer surface of the hand wheel (42), and the positioning shaft (53) is fixedly arranged on the slider (51). 4. A PCB board tooling test bench according to claim 3, characterized in that: there are multiple positioning grooves (55), the multiple positioning grooves (55) are arranged in a ring array on the placement table (31), and the positioning shaft (53) is inserted into the corresponding positioning groove (55). 5. A PCB board tooling test bench according to claim 1, characterized in that: the detection mechanism (2) also includes a driving member (21), the output end of the driving member (21) is fixedly connected to a lifting plate (22), and a plurality of detection probes (23) are installed at the bottom of the lifting plate (22). 6. A PCB board fixture test bench according to claim 1, characterized in that: the clamping mechanism (3) further comprises two protection pads (331), and the two protection pads (331) are respectively fixedly arranged on the side close to the two clamping plates (33).