Destructive test pull claw structure and device for electronic actuator

Abstract

The utility model relates to a destructive test pull claw structure and device for an electronic actuator, and the structure comprises a fixed seat and a clamping part, and the interior of the fixed seat is used for fixing a product. The clamping part is arranged at the top of the fixed seat, the clamping part comprises a pull rod, a limiting rod, a chuck and a clamping jaw, a spherical surface is arranged at one end of the pull rod, and the limiting rod is arranged at one end of the spherical surface of the pull rod; the chuck is arranged on the limiting rod in a sleeving manner, a first elastic element is arranged between the chuck and the spherical surface, and the first elastic element is arranged on the limiting rod in a sleeving manner; at least three sets of clamping jaws are hinged to the chuck in the circumferential direction, and inclined faces are arranged on the sides, close to the spherical face, of the clamping jaws. Through the arrangement of the chuck and the spherical surface at the bottom of the pull rod, the synchronous action of the multiple clamping jaws is realized, the lifting of the chuck ensures that the multiple clamping jaws are quickly clamped with gaps of a product, and the uniform clamping stress is ensured; the first elastic element can improve the clamping stability of the clamping jaw, and the testing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic actuator manufacturing, in particular to a destructive test claw structure and equipment for an electronic actuator. Background Art

[0002] Electronic actuators are an essential component of automatic control systems. To ensure the precise dimensions of the different shapes and sizes of electronic actuators, they are manufactured using a one-step injection molding process.

[0003] For electronic actuators with more complex structures, they need to be split into two parts through injection molding, and then connected and fixed by ultrasonic welding. Secondly, in order to ensure the connection strength between the parts after welding, the welds need to be tensile tested to ensure the welding quality is qualified.

[0004] In the prior art, when performing tensile testing, the existing tools cannot be used for testing because the gap between the products after welding is small. Utility Model Content

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that it is impossible to perform tensile testing on products with small welding gaps.

[0006] In order to solve the above technical problems, the present invention provides a destructive test claw structure of an electronic actuator, comprising:

[0007] A fixing seat, wherein the fixing seat is used to fix the product;

[0008] The clamping part is arranged on the top of the fixing seat, and the clamping part includes a pull rod, a limiting rod, a chuck and a clamping claw. A spherical surface is provided at one end of the pull rod, and the limiting rod is provided at one end of the spherical surface of the pull rod; the chuck is sleeved on the limiting rod, and a first elastic element is provided between the chuck and the spherical surface, and the first elastic element is sleeved on the limiting rod; at least three groups of the clamping claws are circumferentially hinged on the chuck, and the side of the clamping claw close to the spherical surface is provided with an inclined surface.

[0009] In one embodiment of the present invention, a hook groove is provided at one end of the clamping jaw close to the product, and the hook groove abuts against the gap of the product.

[0010] In one embodiment of the present invention, a second elastic element is sleeved on the outer side of one end of the plurality of clamping jaws close to the pull rod.

[0011] A surface of each of the clamping claws close to one end of the pull rod is provided with a clamping groove, and the second elastic element is clamped in the clamping groove.

[0012] In one embodiment of the present invention, the elastic potential energy of the first elastic element is greater than the elastic potential energy of the second elastic element.

[0013] In one embodiment of the present invention, the width of the clamping jaw close to one end of the pull rod is greater than the width of the clamping jaw close to the chuck.

[0014] In one embodiment of the present invention, a clamping platform is provided at one end of the limiting rod away from the pull rod, and the chuck abuts against the clamping platform.

[0015] In one embodiment of the present invention, the limiting rod and the pull rod are detachably connected.

[0016] A destructive testing device for an electronic actuator includes the electronic actuator destructive testing claw structure, and also includes a tensile tester, a first connecting rod and a second connecting rod, one end of the first connecting rod is connected to the pull rod, and the other end of the first connecting rod is connected to the top of the tensile tester; one end of the second connecting rod is connected to the fixing seat, and the other end of the second connecting rod is connected to the bottom of the tensile tester.

[0017] In one embodiment of the present invention, the first connecting rod and the second connecting rod are detachably connected to the tensile tester via a pin.

[0018] The above technical solution of the utility model has the following advantages compared with the prior art:

[0019] The utility model describes an electronic actuator destructive test claw structure and equipment. The utility model realizes the synchronous movement of multiple claws through the spherical setting of the chuck and the bottom of the pull rod. The lifting and lowering of the chuck ensures that the multiple claws are quickly clamped into the gaps of the product and ensures that the clamping force is uniform; the first elastic element can improve the stability of the clamping of the claws and improve the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the utility model easier to understand, the utility model is further described in detail below based on the specific embodiments of the utility model and in conjunction with the accompanying drawings, wherein

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure of the middle clamping part;

[0023] Figure 3 for Figure 2 Schematic diagram of the partial structure of the middle clamping part;

[0024] Figure 4for Figure 1 Schematic diagram of the structure of the middle fixed seat;

[0025] Explanation of the reference numerals in the specification: 1. fixing seat; 2. clamping part; 3. product; 4. tensile tester; 11. second connecting rod; 21. pulling rod; 22. limiting rod; 23. chuck; 24. clamping claw; 25. first elastic element; 26. second elastic element; 27. first connecting rod; 211. spherical surface; 221. clamping table; 241. hook groove; 242. clamping groove; 243. inclined surface. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0027] Example 1

[0028] Reference Figures 1-4 As shown, the utility model discloses a destructive test claw structure of an electronic actuator, comprising:

[0029] A fixing base 1, wherein the fixing base 1 is used to fix the product 3;

[0030] The clamping part 2 is arranged at the top of the fixing seat 1, and the clamping part 2 includes a pull rod 21, a limiting rod 22, a chuck 23 and a clamping jaw 24. A spherical surface 211 is provided at one end of the pull rod 21, and the limiting rod 22 is provided at one end of the spherical surface 211 of the pull rod 21; the chuck 23 is sleeved on the limiting rod 22, and a first elastic element 25 is provided between the chuck 23 and the spherical surface 211, and the first elastic element 25 is sleeved on the limiting rod 22; at least three groups of the clamping jaws 24 are circumferentially hinged on the chuck 23, and the side of the clamping jaw 24 close to the spherical surface 211 is provided with an inclined surface 243.

[0031] As can be seen, the test claw structure of the present invention is divided into two parts: a mounting base at the bottom for securing the product 3, and a clamping portion 2 at the top for clamping the product 3. Specifically, at least three groups of jaws 24 are circumferentially arranged on the chuck 23, and the jaws 24 are hinged to the chuck 23, allowing the jaws 24 to rotate about the hinge point. The chuck 23 is mounted on the limit rod 22 at the bottom of the pull rod 21, and the chuck 23 drives the jaws 24 to slide on the limit rod 22. Because the end of the pull rod 21 near the limit rod 22 is provided with a spherical surface 211, and the side of the jaws 24 near the spherical surface 211 is provided with an inclined surface 243, when the chuck 23 drives the jaws 24 upward, the inclined surface 243 and the spherical surface 211 form a guide, causing the three jaws 24 to open simultaneously. When the chuck 23 drops, the three jaws 24 are clamped synchronously under the guidance of the spherical surface 211. As a preferred embodiment of the present invention, the limiting rod 22 is further provided with a first elastic element 25. The tension of the first elastic element 25 itself is applied between the ends of the first elastic element 25 and the chuck 23 and the spherical surface 211. This applies downward pressure to the chuck 23, causing the three clamping jaws 24 to simultaneously clamp, so that the clamping jaws 24 contact the gap between the bottom product 3. A tensile test is then performed, and when the product 3 is pulled apart during the test, the clamping jaws 24 automatically separate from the part of the product 3 that has been pulled apart.

[0032] The utility model realizes the synchronous movement of multiple clamping jaws 24 through the setting of the chuck 23 and the spherical surface 211 at the bottom of the pull rod 21. The lifting and lowering of the chuck 23 ensures that the multiple clamping jaws 24 are quickly clamped into the gap of the product 3 and the clamping force is uniform; the first elastic element 25 can improve the stability of the clamping of the clamping jaws 24 and improve the testing efficiency.

[0033] Furthermore, the end of the clamping jaw 24 close to the product 3 is provided with a hook groove 241, and the hook groove 241 abuts against the gap of the product 3. Specifically, during the actual clamping process, the end of the clamping jaw 24 provided with the hook groove 241 can automatically cut into the gap of the product 3 to quickly clamp the product 3.

[0034] Furthermore, a second elastic element 26 is sleeved on the outer side of one end of the plurality of clamping jaws 24 close to the pull rod 21 ; the elastic potential energy of the first elastic element 25 is greater than the elastic potential energy of the second elastic element 26 .

[0035] Specifically, a second elastic element 26 is disposed at one end of the original hook groove 241 of the clamping jaw 24. Multiple clamping jaws 24 are connected via the second elastic element 26, which tightens and concentrates the multiple clamping jaws 24, causing them to open. During actual operation, the second elastic element 26 applies a tensile force to the multiple clamping jaws 24, partially offsetting the tensioning force of the first elastic element 25 and preventing the clamping force of the clamping jaws 24 from being excessive and damaging the product 3 held at the bottom. It should be noted that in the present invention, the primary function is to ensure that the clamping jaws 24 quickly clamp the gap between the bottom product 3, so it is necessary to ensure that the elastic potential energy of the first elastic element 25 is greater than the elastic potential energy of the second elastic element 26.

[0036] Furthermore, a surface of each of the plurality of clamping jaws 24 close to one end of the pull rod 21 is provided with a clamping groove 242 , and the second elastic element 26 is clamped in the clamping groove 242 .

[0037] As a preferred solution of the present invention, the second elastic element 26 is selected as a tension spring, which is sleeved into the slot 242 on the surface of each clamping jaw 24 to fix the tension spring.

[0038] Furthermore, the width of the clamping jaw 24 near one end of the pull rod 21 is greater than the width of the clamping jaw 24 near the chuck 23, so as to achieve stable opening and closing of the clamping jaw 24 during the lifting process.

[0039] Furthermore, a clamping platform 221 is provided at one end of the limiting rod 22 away from the pulling rod 21 , and the chuck 23 abuts against the clamping platform 221 .

[0040] Specifically, the function of the chuck 221 is to limit the extreme position of the chuck 23 to prevent the chuck 23 from being separated from the limiting rod 22 .

[0041] Furthermore, the limiting rod 22 is detachably connected to the pull rod 21. Specifically, a threaded connection is adopted to facilitate the fixing and disassembly of the entire device.

[0042] Example 2

[0043] A destructive testing device for an electronic actuator includes the electronic actuator destructive testing claw structure described in Example 1, and also includes a tensile tester 4, a first connecting rod 27 and a second connecting rod 11, one end of the first connecting rod 27 is connected to the pull rod 21, and the other end of the first connecting rod 27 is connected to the top of the tensile tester 4; one end of the second connecting rod 11 is connected to the fixing seat 1, and the other end of the second connecting rod 11 is connected to the bottom of the tensile tester 4.

[0044] Specifically, during the actual tension testing process, the first connecting rod 27 is used to connect the tension tester 4 and the entire clamping part 2, and the second connecting rod 11 is used to connect the tension tester 4 and the mounting seat for real-time monitoring of the tension of the product 3.

[0045] Furthermore, the first connecting rod 27 and the second connecting rod 11 are detachably connected to the tensile tester 4 via a pin, thereby realizing a quick connection between the entire clamping jaw 24 structure and the tensile tester 4 .

[0046] In summary, the utility model introduces a destructive test claw structure and equipment for an electronic actuator. The utility model realizes the synchronous movement of multiple claws 24 through the setting of the chuck 23 and the spherical surface 211 at the bottom of the pull rod 21. The lifting and lowering of the chuck 23 ensures that the multiple claws 24 are quickly clamped into the gap of the product 3 and ensures that the clamping force is uniform; the first elastic element 25 can improve the stability of the clamping of the claw 24 and improve the test efficiency.

[0047] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A destructive test claw structure for an electronic actuator, characterized in that: include: A fixing seat, wherein the fixing seat is used to fix the product; The clamping part is arranged on the top of the fixing seat, and the clamping part includes a pull rod, a limiting rod, a chuck and a clamping claw. A spherical surface is provided at one end of the pull rod, and the limiting rod is provided at one end of the spherical surface of the pull rod; the chuck is sleeved on the limiting rod, and a first elastic element is provided between the chuck and the spherical surface, and the first elastic element is sleeved on the limiting rod; at least three groups of the clamping claws are circumferentially hinged on the chuck, and the side of the clamping claw close to the spherical surface is provided with an inclined surface.

2. The electronic actuator destructive test claw structure according to claim 1, characterized in that: One end of the clamping jaw close to the product is provided with a hook groove, and the hook groove abuts against the gap of the product.

3. The electronic actuator destructive test claw structure according to claim 1, characterized in that: A second elastic element is sleeved on the outer side of one end of the plurality of clamping jaws close to the pull rod.

4. The electronic actuator destructive test claw structure according to claim 3, characterized in that: A surface of each of the clamping claws close to one end of the pull rod is provided with a clamping groove, and the second elastic element is clamped in the clamping groove.

5. The electronic actuator destructive test claw structure according to claim 3, characterized in that: The elastic potential energy of the first elastic element is greater than the elastic potential energy of the second elastic element.

6. The electronic actuator destructive test claw structure according to claim 1, characterized in that: The width of the clamping jaw close to one end of the pull rod is greater than the width of the clamping jaw close to the chuck.

7. The electronic actuator destructive test claw structure according to claim 1, characterized in that: A clamping platform is provided at one end of the limiting rod away from the pulling rod, and the chuck abuts against the clamping platform.

8. The electronic actuator destructive test claw structure according to claim 1, characterized in that: The limiting rod and the pulling rod are detachably connected.

9. An electronic actuator destructive testing device, comprising the electronic actuator destructive testing claw structure according to any one of claims 1 to 8, characterized in that: It also includes a tensile tester, a first connecting rod and a second connecting rod, one end of the first connecting rod is connected to the tensile rod, and the other end of the first connecting rod is connected to the top of the tensile tester; one end of the second connecting rod is connected to the fixing seat, and the other end of the second connecting rod is connected to the bottom of the tensile tester.

10. The electronic actuator destructive testing equipment according to claim 9, characterized in that: The first connecting rod and the second connecting rod are detachably connected to the tensile tester via a pin shaft.

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