Chip test jig with limiting function

Abstract

The utility model discloses a chip testing frame with a limiting function, which comprises a supporting seat and a supporting plate, the supporting plate is fixedly arranged at the top of the supporting seat, and a limiting assembly is arranged in the supporting seat. According to the utility model, not only can the chip be limited, but also the center of the limited chip and the center of the mounting plate can be in a concentric state, so that the chip and the probe are in a completely overlapped state, and therefore, by using the device provided by the utility model, not only is the stability of chip limiting ensured, but also the reliability of chip detection is improved. And the detection effect of the probe on the chip is ensured. According to the utility model, through the design of a protection function, the probe which is not used can be isolated from the outside, so that the probe is prevented from being accidentally collided by an external object to cause the deformation of the probe, and therefore, by using the device provided by the utility model, the probe is protected, the normality of the probe during working is ensured, and the service life of the probe is prolonged. Therefore, the accuracy of detecting the chip by the probe is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of chip testing racks, in particular to a chip testing rack with a limiting function. Background Art

[0002] The chip test rack is mainly used as a device to inspect and test the control chips in industrial electronic devices. The inspection fixture is simply a kind of auxiliary production equipment on the production line. It is necessary to inspect and test chip products or semi-finished products to determine their functions.

[0003] The patent name is "CN218350441U", which is published as: A chip test stand with a limiting function. The public document fixes the position of the chip by setting a limiting plate, but the limiting plate can only clamp and fix the front and back ends of the chip, and cannot clamp and fix the left and right sides of the chip. When the staff places the chip on the base, the left and right directions of the chip cannot play a limiting role. At this time, the center of the chip and the center of the detection plate are in an eccentric state, resulting in the test probe and the chip being in a state of non-complete overlap, which in turn affects the detection effect of the test probe on the chip. Based on this, the utility model designs a chip test stand with a limiting function to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a chip testing rack with a limiting function to solve the problems raised by the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a chip testing rack with a limiting function, comprising a support seat and a support plate, the support plate is fixedly mounted on the top of the support seat, a limiting assembly is arranged inside the support seat, the limiting assembly includes a cross hole integrally arranged at the top end of the support seat, a rotating pin is connected at the four corners inside the support seat, a pulley is fixedly sleeved on the upper end of the outer side of the rotating pin, and the outer sides of the four pulleys are connected in series by a tightly matched toothed belt for gear meshing, a slide sleeved on the lower end of the outer side of the rotating pin is slidably connected to the support seat, a rack fixedly arranged on one side of the inner side of the support seat is meshed with the gear teeth fixedly sleeved on the outer side of the rotating pin, a limiting pin fixedly arranged on the inner side of the top of the slide slides through the cross hole, a micro motor is fixedly arranged on the left side of the inner top of the support seat, and the head end of the micro motor is fixedly connected to the rotating pin on the left side.

[0006] Furthermore, the angles between the four limit pins are designed to be 90 degrees, and the micro motor has forward and reverse rotation and self-locking functions.

[0007] Furthermore, the distances between the centers of the four limit pins and the centers of the cross holes are in an identically designed state, and a controller is fixedly provided on the right side of the outside of the support seat.

[0008] Furthermore, an electric push rod is fixedly provided at the middle end of the top of the support plate, the head end of the electric push rod passes through the top of the support plate, and a mounting plate is fixedly provided at the bottom of the electric push rod, and the electric push rod has a self-locking function.

[0009] Furthermore, a plurality of probes are fixedly arranged at the bottom of the mounting plate, and the center of the mounting plate is concentric with the cross hole and the center of the support seat.

[0010] Furthermore, a rubber cover is provided at the upper end of the support plate, a clearance hole integrally provided at the middle end of the cover overlaps with the mounting plate, and the top view cross-section of the clearance hole is larger than the top view cross-section of the mounting plate.

[0011] Furthermore, a rubber sealing plate is slidably connected to the left and right sides of the lower end of the cover body, a spring is fixed between the front and rear ends of the outer side of the sealing plate and the cover body, and a rubber partition arranged on the inner side of the spring is fixedly connected to the cover body, and the partition slides through the sealing plate.

[0012] Furthermore, an iron block is fixedly arranged at the middle end of the outer side of the blocking plate, and the electromagnets fixedly arranged at the middle ends of the left and right sides inside the cover body correspond one to one with the iron block.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model can not only limit the chip, but also make the center of the limited chip concentric with the center of the mounting plate, so that the chip and the probe are in a completely overlapping state. It can be seen that by using the device in this application, not only the stability of the chip limitation is ensured, but also the detection effect of the probe on the chip is ensured.

[0015] 2. The utility model can isolate the unused probes from the outside world through the design of the protection function, so as to avoid the probes being deformed by accidental collisions with external objects. It can be seen that by using the device in this application, not only the probes are protected, but also the normal operation of the probes is ensured, that is, the accuracy of the probe detection chip is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1This is a front perspective view of a chip test stand with a limiting function according to the utility model;

[0018] Figure 2 This is a bottom-up stereoscopic diagram of a chip test stand with a limiting function according to the utility model;

[0019] Figure 3 This is a three-dimensional diagram of the internal structure of a chip test rack with a limiting function according to the utility model;

[0020] Figure 4 is a three-dimensional diagram of the limiting component;

[0021] Figure 5 It is a top view of the inside of the cover.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1-support seat, 2-support plate, 3-limiting assembly, 301-cross hole, 302-turn pin, 303-pulley, 304-toothed belt, 305-slide, 306-rack, 307-gear, 308-limiting pin, 309-micro motor, 4-controller, 5-electric push rod, 6-mounting plate, 7-probe, 8-cover, 9-allowance hole, 10-blocking plate, 11-spring, 12-partition, 13-iron block, 14-electromagnet. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] like Figure 1 , Figure 3 , Figure 4As shown, the device includes a support seat 1 and a support plate 2, the support plate 2 is fixedly arranged on the top of the support seat 1, a limit assembly 3 is arranged inside the support seat 1, the limit assembly 3 includes a cross hole 301 which is integrally arranged with the top end of the support seat 1, a rotating pin 302 is connected at the four corners inside the support seat 1, a pulley 303 is fixedly sleeved on the upper end of the outer side of the rotating pin 302, and the outer sides of the four pulleys 303 are connected in series by a tightly matched toothed belt 304, a slide 305 sleeved on the lower end of the outer side of the rotating pin 302 is slidably connected to the support seat 1, a rack 306 fixedly arranged on one side of the inner side of the support seat 1 is meshed with the gear 307 fixedly sleeved on the outer side of the rotating pin 302, a limit pin 308 fixedly arranged on the inner side of the top of the slide 305 slides through the cross hole 301, a micro motor 309 is fixedly arranged on the left side of the top end of the support seat 1, and the head end of the micro motor 309 is fixedly connected to the rotating pin 302 on the left side.

[0027] The angles between the four limit pins 308 are designed to be 90 degrees, the micro motor 309 has forward and reverse rotation and self-locking functions, the centers of the four limit pins 308 and the centers of the cross holes 301 are in the same design state, and a controller 4 is fixed on the right side of the outside of the support base 1. The staff first places the chip on the support base 1, and then uses the controller 4 to turn on the forward rotation function of the micro motor 309. The micro motor 309 drives the left rotating pin 302 to drive the pulley 303 to link the toothed belt 304 together with the remaining rotating pins 302 and the gear 307 to rotate forward synchronously. Through the meshing of the gear 307 and the rack 306, the gear 307 controls the rack 306 to drive the slide 305 together with the limit pin 308 to move along the center direction of the cross hole 301. In this way, four limit pins 308 move along the center of the cross hole 301 at the same time, and then the four limit pins 308 can synchronously clamp the front and back and left and right sides of the chip, thereby ensuring that the center of the chip is concentric with the center of the support base 1.

[0028] Example 2

[0029] like Figure 2 , Figure 3 , Figure 5As shown, an electric push rod 5 is fixedly arranged at the middle end of the top of the support plate 2, and the head end of the electric push rod 5 passes through the top of the support plate 2, and a mounting plate 6 is fixedly arranged at the bottom of the electric push rod 5, and the electric push rod 5 has a self-locking function. A plurality of probes 7 are fixedly arranged at the bottom of the mounting plate 6, and the center of the mounting plate 6 is concentric with the cross hole 301 and the center of the support seat 1. A cover body 8 made of rubber material is arranged at the upper end of the support plate 2, and a clearance hole 9 integrally arranged at the middle end of the cover body 8 coincides with the mounting plate 6. The cross-section of the clearance hole 9 when viewed from above is larger than the cross-section of the mounting plate 6 when viewed from above. A sealing plate 10 made of rubber is slidably connected to the left and right sides of the lower end of the cover body 8. A spring 11 is fixedly arranged between the front and rear ends of the outer side of the sealing plate 10 and the cover body 8. A partition plate 12 made of rubber arranged on the inner side of the spring 11 is fixedly connected to the cover body 8. The partition plate 12 slides through the sealing plate 10. An iron block 13 is fixedly arranged at the middle end of the outer side of the sealing plate 10. Electromagnets 14 fixedly arranged at the middle ends of the left and right sides of the cover body 8 correspond one to one to the iron block 13.

[0030] According to the operation method in Example 1, when the center of the chip is concentric with the center of the support seat 1, the center of the chip is synchronously concentric with the center of the mounting plate 6, that is, the chip and a certain number of probes 7 are in a completely overlapping state, and the staff then turns off the micro motor 309, and then uses the controller 4 to first turn on the electromagnet 14, and the electromagnet 14 magnetically adsorbs the iron block 13, so that the iron block 13 drives the blocking plate 10 to move along the right direction of the cover body 8, and the spring 11 is deformed. At the same time, the blocking plate 10 and the clearance hole 9 are misaligned with each other, and then the pushing function of the electric push rod 5 is turned on, and the electric push rod 5 pushes the mounting plate 6 to drive the probe 7 to move along the direction of the chip, so that the probe 7 detects the chip. After the detection is completed, the pulling function of the electric push rod 5 is turned on, so that the electric push rod 5 drives the mounting plate 6 and the probe 7 to move into the cover body 8, and then the electromagnet 14 is turned off, so that the magnetic attraction of the electromagnet 14 to the iron block 13 is eliminated, and the blocking plate 10 is reset through the rebound force of the spring 11, that is, the blocking plate 10 and the clearance hole 9 overlap with each other, thereby isolating the probe 7 from the outside world, and the partition 12 can prevent the electromagnet 14 from forming a magnetic attraction on the spring 11.

Claims

1. A chip testing rack with a limiting function, comprising a support seat (1) and a support plate (2), characterized in that: The support plate (2) is fixedly arranged on the top of the support seat (1); a limit assembly (3) is arranged inside the support seat (1); the limit assembly (3) comprises a cross hole (301) integrally arranged on the top of the support seat (1); rotating pins (302) are connected at the four corners inside the support seat (1); a belt pulley (303) is fixedly sleeved on the upper end of the rotating pin (302); the four belt pulleys (303) are connected in series through a toothed belt (304) tightly arranged; A slide (305) sleeved on the lower end of the pin (302) is slidably connected to the support seat (1); a rack (306) fixedly arranged on one side of the support seat (1) is meshed with the gear teeth of a gear (307) fixedly arranged on the outside of the rotating pin (302); a limit pin (308) fixedly arranged on the inner side of the top of the slide (305) slides through the cross hole (301); a micro motor (309) is fixedly arranged on the left side of the top of the support seat (1), and the head end of the micro motor (309) is fixedly connected to the rotating pin (302) on the left side.

2. According to claim 1, a chip test rack with a limiting function is characterized in that: The angles between the four limit pins (308) are designed to be 90 degrees, and the micro motor (309) has forward and reverse rotation and self-locking functions.

3. The chip testing rack with a limiting function according to claim 1, characterized in that: The distances between the centers of the four limit pins (308) and the centers of the cross holes (301) are in an identically designed state, and a controller (4) is fixedly disposed on the right side of the outside of the support base (1).

4. The chip testing rack with a limiting function according to claim 1, characterized in that: An electric push rod (5) is fixedly arranged at the middle end of the top of the support plate (2), the head end of the electric push rod (5) passes through the top of the support plate (2), and a mounting plate (6) is fixedly arranged at the bottom of the electric push rod (5), and the electric push rod (5) has a self-locking function.

5. The chip testing rack with a limiting function according to claim 4, characterized in that: A plurality of probes (7) are fixedly mounted on the bottom of the mounting plate (6), and the center of the mounting plate (6) is concentric with the center of the cross hole (301) and the center of the support seat (1).

6. The chip testing rack with a limiting function according to claim 1, characterized in that: A rubber cover (8) is provided at the upper end of the support plate (2), a clearance hole (9) integrally provided at the middle end of the cover (8) overlaps with the mounting plate (6), and a top view cross section of the clearance hole (9) is larger than a top view cross section of the mounting plate (6).

7. The chip testing rack with a limiting function according to claim 6, characterized in that: A rubber blocking plate (10) is slidably connected to the left and right sides of the lower end of the cover body (8); a spring (11) is fixedly arranged between the front and rear ends of the outer side of the blocking plate (10) and the cover body (8); and a rubber partition (12) arranged on the inner side of the spring (11) is fixedly connected to the cover body (8); the partition (12) slides through the blocking plate (10).

8. The chip testing rack with a limiting function according to claim 7, characterized in that: An iron block (13) is fixedly arranged at the middle end of the outer side of the blocking plate (10), and the electromagnets (14) fixedly arranged at the middle ends of the left and right sides of the cover body (8) correspond one to one with the iron block (13).

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