Self-locking type turnover mechanism and lifting mechanism

Abstract

The self-locking type turnover mechanism comprises a hand-cranking wheel, a speed reducer, a connecting shaft, a connecting part, a brake disc, a spring positioning pin and a locking assembly, the speed reducer is connected with the connecting part, the hand-cranking wheel is connected with the speed reducer, one end of the connecting shaft is connected with the speed reducer, and the other end of the connecting shaft is connected with the brake disc. The hand-cranking wheel is in transmission connection with the connecting shaft through the speed reducer, the other end of the connecting shaft rotatably penetrates through the connecting part and is connected with the brake disc, the spring positioning pin and the locking assembly are both arranged on the connecting part, the locking assembly is used for locking or releasing the brake disc, a plurality of positioning holes are formed in the brake disc, and one end of the spring positioning pin extends into the positioning holes. Through the application of the utility model, a self-locking type turnover mechanism suitable for a lifting mechanism is provided, accurate positioning and controllable adjustment of a to-be-tested part can be realized, and especially, a test head can be adjusted in a semiconductor test process so as to be in butt joint with a probe station.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor testing, in particular to a self-locking flipping mechanism and a lifting mechanism. Background Art

[0002] With the further development of the semiconductor industry, semiconductor testing has become an indispensable part of the production process. In this test, it is common to dock the corresponding test head with the probe station to test the electrical function. Since the test head is generally heavy, a corresponding lifting mechanism is required to support it at a high position.

[0003] However, the existing lifting mechanism is often relatively fixed as a whole after the test head is installed, and it is difficult to adjust the angle of the test head to meet the possible angle difference between the test head and the probe station. The test head needs to be manually disassembled and reassembled to change its installation angle, which directly affects the efficiency of semiconductor testing and causes a waste of manpower. Utility Model Content

[0004] In view of this, in order to solve the above-mentioned problems, the purpose of the utility model is to provide a self-locking flipping mechanism, including: a hand-cranked wheel, a reducer, a connecting shaft, a connecting part, a brake disc, a spring locating pin and a locking assembly, the reducer is connected to the connecting part, the hand-cranked wheel is connected to the reducer, one end of the connecting shaft is connected to the reducer, the hand-cranked wheel is transmission-connected to the connecting shaft through the reducer, the other end of the connecting shaft can rotatably pass through the connecting part and is connected to the brake disc, the spring locating pin and the locking assembly are both arranged on the connecting part, the locking assembly is used to lock or release the brake disc, a plurality of locating holes are arranged on the brake disc, and one end of the spring locating pin is extended into the locating hole.

[0005] In another preferred embodiment, the locking assembly includes: a handle, a threaded connector and a locking block, the handle is connected to one end of the threaded connector, the threaded connector passes through the connecting portion and is threadedly connected to the locking block, a clamping opening is formed between the locking block and the connecting portion, and the outer edge of the brake disc extends into the clamping opening.

[0006] In another preferred embodiment, one end of the connecting portion close to the brake disc extends radially outward to form a first connecting end and a second connecting end, and the spring locating pin and the locking assembly are respectively mounted on the first connecting end and the second connecting end.

[0007] In another preferred embodiment, it further comprises: a bearing member, wherein the bearing member is disposed in the connecting portion and sleeved on the connecting shaft.

[0008] In another preferred embodiment, a plurality of mounting holes are provided on the brake disc.

[0009] In another preferred embodiment, the connecting portion includes: a first mounting block, a connecting block and a second mounting block connected in sequence, the first mounting block is connected to the reducer, and the second mounting block is provided with the spring locating pin and the locking assembly.

[0010] In another preferred embodiment, the number of the positioning holes is 12.

[0011] The purpose of the utility model is also to provide a lifting mechanism, including any one of the self-locking flipping mechanisms described above, and also including: a lifting device and a support arm, one end of the support arm is connected to the lifting device, and the other end of the support arm is connected to the self-locking flipping mechanism.

[0012] In another preferred embodiment, the support arm is connected to the connecting portion.

[0013] In another preferred embodiment, the brake disc is connected to a component to be tested.

[0014] Due to the adoption of the above technical solution, the utility model has the following positive effects compared with the prior art: through the application of the utility model, a self-locking flipping mechanism suitable for a lifting mechanism is provided, which can achieve precise positioning and controllable adjustment of the test component, especially conducive to adjusting the test head to dock with the probe station during the semiconductor testing process, easy operation, and further improving the semiconductor testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of a self-locking flipping mechanism of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of a self-locking flipping mechanism of the utility model;

[0017] Figure 3 The utility model is an overall schematic diagram of a lifting mechanism.

[0018] In the attached figure:

[0019] 1. Hand wheel; 2. Speed ​​reducer; 3. Connecting shaft; 4. Connecting part; 5. Brake disc; 6. Spring locating pin; 7. Locking assembly; 8. Handle; 9. Threaded connector; 10. Locking block; 11. First connecting end; 12. Second connecting end; 13. Bearing member; 14. Mounting hole; 15. First mounting block; 16. Connecting block; 17. Second mounting block; 18. Lifting device; 19. Support arm; 20. Positioning hole. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0021] like Figures 1 to 3 As shown, a self-locking flip mechanism of a preferred embodiment is shown, including: a hand-cranked wheel 1, a reducer 2, a connecting shaft 3, a connecting part 4, a brake disc 5, a spring locating pin 6 and a locking assembly 7. The reducer 2 is connected to the connecting part 4, the hand-cranked wheel 1 is connected to the reducer 2, one end of the connecting shaft 3 is connected to the reducer 2, the hand-cranked wheel 1 is transmission-connected to the connecting shaft 3 through the reducer 2, the other end of the connecting shaft 3 rotatably passes through the connecting part 4 and is connected to the brake disc 5, the spring locating pin 6 and the locking assembly 7 are both arranged on the connecting part 4, the locking assembly 7 is used to lock or release the brake disc 5, a plurality of locating holes 20 are arranged on the brake disc 5, and one end of the spring locating pin 6 is extended into the locating hole 20. Furthermore, when docking a heavy test head with a probe station in semiconductor testing, the test head and the brake disc 5 are first fixed and installed, and then the hand wheel 1 is manually rotated according to the angle difference between the test head and the probe station. The hand wheel 1 drives the connecting shaft 3 to drive the brake disc 5 to rotate to a suitable angle position through the transmission of the reducer 2. At this time, the spring locating pin 6 can be operated to extend its head into the corresponding locating hole 20 under its own elastic action, and then the locking assembly 7 is operated to lock the brake disc 5 on the connecting part 4, thereby completing the position adjustment and locking.

[0022] Further, as a preferred embodiment, the locking assembly 7 includes: a handle 8, a threaded connector 9 and a locking block 10, the handle 8 is connected to one end of the threaded connector 9, the threaded connector 9 passes through the connecting portion 4 and is threadedly connected to the locking block 10, a clamping opening is formed between the locking block 10 and the connecting portion 4, and the outer edge of the brake disc 5 extends into the clamping opening. Further, by the movement of the locking block 10 close to the brake disc 5, the inner contour of the clamping opening is reduced, so that the outer edge of the brake disc 5 is clamped in the above-mentioned clamping opening; conversely, the inner contour of the clamping opening is increased to allow the outer edge of the brake disc 5 to have the freedom to move in the clamping opening.

[0023] Furthermore, as a preferred embodiment, a positioning block is provided on the side of the connecting portion 4 away from the handle 8, and the positioning block is slidably connected to the locking block 10 so that when the locking block 10 is driven by the threaded connection 9, it is guided to move in a direction close to or away from the brake disc 5.

[0024] Further, as a preferred embodiment, the positioning block and the connecting portion 4 are in a split structure or are formed integrally by protruding from the surface of the connecting portion 4 , and the corresponding clamping opening is preferably formed between the positioning block and the locking block 10 .

[0025] Further, as a preferred embodiment, the sliding connection between the positioning block and the locking block 10 can preferably be formed by a plurality of sliding guide rods.

[0026] Furthermore, as a preferred embodiment, the positioning block and the locking block 10 preferably adopt a copper block structure.

[0027] Further, as a preferred embodiment, one end of the connecting portion 4 close to the brake disc 5 extends radially outward to form a first connecting end 11 and a second connecting end 12, and the spring locating pin 6 and the locking assembly 7 are respectively installed on the first connecting end 11 and the second connecting end 12.

[0028] Further, as a preferred embodiment, the first connecting end 11 and the second connecting end 12 are symmetrically arranged relative to the connecting axis 3 .

[0029] Furthermore, as a preferred embodiment, it also includes: a bearing member 13 , which is disposed in the connecting portion 4 and sleeved on the connecting shaft 3 .

[0030] Further, as a preferred embodiment, the bearing member 13 is preferably a deep groove ball bearing.

[0031] Further, as a preferred embodiment, a plurality of mounting holes 14 are provided on the brake disc 5. Further, the corresponding components to be tested can be fixedly connected by the cooperation between the mounting holes 14 and the corresponding bolts.

[0032] Further, as a preferred embodiment, the number of the mounting holes 14 is preferably 4. Further, the 4 mounting holes 14 are arranged in a rectangular array.

[0033] Further, as a preferred embodiment, the connecting portion 4 includes: a first mounting block 15, a connecting block 16 and a second mounting block 17 connected in sequence, the first mounting block 15 is connected to the reducer 2, and the second mounting block 17 is provided with a spring locating pin 6 and a locking assembly 7.

[0034] Further, as a preferred embodiment, the number of the positioning holes 20 is 12. Further, the 12 positioning holes 20 are evenly arranged along the circumferential direction of the brake disc 5.

[0035] Further, as a preferred embodiment, the spring locating pin 6 preferably includes: a pin sleeve, a pin body and a spring, the pin sleeve is embedded in the connecting portion 4, the pin body is movably installed in the pin sleeve, and the spring is connected between the pin body and the pin sleeve.

[0036] Further, as a preferred embodiment, the pin body is operable to rotate relative to the pin sleeve. Specifically, the pin body is rotatably arranged on the inner side of the pin sleeve, and the pin sleeve has at least a limiting edge and a limiting groove arranged on the limiting edge and recessed toward the direction close to the brake disc 5, and the pin body has a clamping piece matching the limiting groove; when locking is required, the user can operate the pin body to rotate so that the clamping piece is opposite to the limiting groove, and under the action of the spring, the pin body drives the clamping piece to extend into the limiting groove, and the pin body extends into the corresponding positioning hole 20; when the angle of the brake disc 5 needs to be adjusted, the pin body can be pulled outward with force and rotated to a certain angle so that the clamping piece abuts against the limiting edge. At this time, the end of the pin body is separated from the positioning hole 20 to allow adjustment of the brake disc 5.

[0037] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention.

[0038] The utility model also has the following implementation methods based on the above:

[0039] A lifting mechanism includes any one of the above self-locking flipping mechanisms, and further includes: a lifting device 18 and a support arm 19, one end of the support arm 19 is connected to the lifting device 18, and the other end of the support arm 19 is connected to the self-locking flipping mechanism.

[0040] In a further embodiment of the present invention, one end of the support arm 19 is mounted on the lifting device in a liftable manner.

[0041] In a further embodiment of the present invention, the support arm 19 is provided with a hollow frame structure.

[0042] In a further embodiment of the present invention, the support arm 19 is connected to the connecting portion 4 .

[0043] In a further embodiment of the present invention, the brake disc 5 is connected to a component to be tested.

[0044] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-locking flipping mechanism, characterized in that: include: A hand wheel, a reducer, a connecting shaft, a connecting part, a brake disc, a spring locating pin and a locking assembly, wherein the reducer is connected to the connecting part, the hand wheel is connected to the reducer, one end of the connecting shaft is connected to the reducer, the hand wheel is transmission-connected to the connecting shaft through the reducer, the other end of the connecting shaft rotatably passes through the connecting part and is connected to the brake disc, the spring locating pin and the locking assembly are both arranged on the connecting part, the locking assembly is used to lock or release the brake disc, a plurality of locating holes are arranged on the brake disc, and one end of the spring locating pin is extended into the locating hole.

2. The self-locking flipping mechanism according to claim 1, characterized in that: The locking assembly includes: a handle, a threaded connector and a locking block, the handle is connected to one end of the threaded connector, the threaded connector passes through the connecting portion and is threadedly connected to the locking block, a clamping opening is formed between the locking block and the connecting portion, and the outer edge of the brake disc extends into the clamping opening.

3. The self-locking flipping mechanism according to claim 1, characterized in that: One end of the connecting portion close to the brake disc radially extends outward to form a first connecting end and a second connecting end, and the spring positioning pin and the locking assembly are respectively installed on the first connecting end and the second connecting end.

4. The self-locking flipping mechanism according to claim 1, characterized in that: Also includes: A bearing component is disposed in the connecting portion and sleeved on the connecting shaft.

5. The self-locking flipping mechanism according to claim 1, characterized in that: The brake disc is provided with a plurality of mounting holes.

6. The self-locking flipping mechanism according to claim 1, characterized in that: The connecting portion includes: a first mounting block, a connecting block, and a second mounting block which are connected in sequence, the first mounting block is connected to the reducer, and the second mounting block is provided with the spring positioning pin and the locking assembly.

7. The self-locking flipping mechanism according to claim 1, characterized in that: The number of the positioning holes is 12.

8. A lifting mechanism, comprising the self-locking flipping mechanism as claimed in any one of claims 1 to 7, characterized in that: Also includes: A lifting device and a support arm, one end of the support arm is connected to the lifting device, and the other end of the support arm is connected to the self-locking flipping mechanism.

9. The lifting mechanism according to claim 8, characterized in that: The supporting arm is connected to the connecting portion.

10. The lifting mechanism according to claim 8, characterized in that: The brake disc is connected to a component to be tested.

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