Holding and clamping assembly capable of automatically switching positioning pins and clamping electric drive

Abstract

The utility model belongs to the gearbox assembly test tool field, and discloses a clamping assembly capable of automatically switching positioning pins and clamping an electric drive, comprising a base plate, a transition plate fixed on the base plate, a pair of vertically arranged first round through holes arranged on the transition plate, and a horizontally arranged first chute arranged on the bottom of the transition plate; the clamping plate is fixed to the upper end of the transition plate, two second round through holes corresponding to the two first round through holes in a one-to-one mode are formed in the clamping plate, the second round through holes and the corresponding first round through holes are coaxially arranged, and positioning pins are slidably connected into the second round through holes; the sliding strip is clamped in the first sliding groove in a sliding mode, the lower ends of the positioning pins make contact with the upper end of the sliding strip, and a groove is formed in the upper end face of the sliding strip; the lifting or releasing states of the two positioning pins in the testing tool can be conveniently and alternately replaced, and the working efficiency of remodeling of the two positioning pins in the telescopic state is improved.

Description

Technical Field

[0001] The present invention belongs to the field of gearbox assembly and testing tooling, and in particular relates to a clamping assembly that automatically switches positioning pins and clamps an electric drive. Background Art

[0002] In the automotive transmission and electric drive test line factory, during the product testing process, the product needs to be clamped out of the pallet for testing. In the existing production test process, the product is usually positioned by a positioning pin and clamped by a cylinder; however, since there are two different specifications of the test products and their positioning holes are in different positions, the lifting or release of the two positioning pins on the test fixture needs to be replaced and adjusted according to the different positions of the product positioning holes during the test;

[0003] At present, in most cases, the replacement or adjustment of these positioning pins is done manually; however, the test bench is usually a fully enclosed environment, which makes manual operation very inconvenient and increases the product changeover time; therefore, most of the existing technologies have the problem that the process of replacing the position status of the two positioning pins is cumbersome and inefficient. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a clamping assembly that automatically switches the positioning pins and clamps the electric drive, thereby solving the problem in the prior art that the process of changing the position states of the two positioning pins is complicated and inefficient.

[0005] The purpose of this disclosure can be achieved through the following technical solutions:

[0006] A clamping assembly for automatically switching positioning pins and clamping electric drive, comprising a base plate, and also comprising:

[0007] A transition plate, the transition plate is fixed to the bottom plate, a pair of vertically placed first round through holes are opened on the transition plate, and a horizontally placed first sliding groove is opened at the bottom of the transition plate;

[0008] A clamping plate, the clamping plate is fixed to the upper end of the transition plate, the clamping plate is provided with two second circular through holes corresponding to the two first circular through holes, the second circular through holes are coaxially arranged with the corresponding first circular through holes, and positioning pins are slidably connected in the second circular through holes;

[0009] The slide bar is slidably connected in the first slide groove, the lower ends of the positioning pins are in contact with the upper end of the slide bar, a groove is provided on the upper end surface of the slide bar, the bottom of the groove is in a horizontal plane, and the groove walls on both sides of the groove are inclined and away from each other from bottom to top. When the groove is located directly below any positioning pin, the lower end of the positioning pin is in contact with the bottom of the groove, and the lower end of the other positioning pin is in contact with the upper end surface of the slide bar.

[0010] The principle and effect of the above technical solution are as follows:

[0011] The position of the groove can be adjusted by pushing the slide bar. When the groove moves to the position directly below any locating pin, the locating pin moves downward and contracts, while the other locating pin moves upward and extends. This makes it easy to alternately change the lifting or releasing states of the two locating pins in the test fixture, thereby improving the work efficiency of changing the retractable and retractable states of the two locating pins.

[0012] A first disc placed coaxially is fixed in each of the second through holes, a positioning pin passes through the first disc and is slidably connected thereto, a second disc is fixedly sleeved on each of the positioning pins, the second disc is located directly below the first disc, and the second disc can slide along the first through hole and the second through hole, a spring is sleeved on each of the positioning pins, and both ends of the spring are respectively fixed to the first disc and the second disc;

[0013] The spring is always in a compressed state;

[0014] A coaxially placed bushing is fixed in each of the first round through holes. The bushing is sleeved on the peripheral wall of the positioning pin and is slidably connected therewith.

[0015] A cylinder is fixedly installed on the bottom plate, and a driving rod coaxially arranged with the slide bar is provided at the output end of the cylinder, and the driving rod is fixed to one end of the slide bar;

[0016] A second slide groove is provided at the lower end of the slide bar and is coaxially arranged. A guide strip for sliding engagement is provided in the second slide groove, and the guide strip is fixed to the bottom plate.

[0017] A pair of symmetrically placed support members are provided above the base plate, one of the support members is fixed to the base plate, and the other support member is fixed to the transition plate, a pair of horizontally placed optical fiber counter-radiation sensor transmitting ends are fixed to one of the support members, and a pair of optical fiber counter-radiation sensor receiving ends are fixed to the other support member, the two optical fiber counter-radiation sensor transmitting ends correspond to the two positioning pins one by one, the central axes of the optical fiber counter-radiation sensor transmitting ends all pass through the central axes of the corresponding positioning pins, and the optical fiber counter-radiation sensor transmitting ends are connected to the corresponding optical fiber counter-radiation sensor receiving ends through optical fibers.

[0018] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0019] Connection: refers to the process of connecting two separate profiles or parts into a complex part or component using fasteners such as screws, bolts and rivets.

[0020] Sliding connection: a mechanism that connects parts by relative sliding.

[0021] Beneficial effects of the present disclosure:

[0022] 1. The position of the groove is adjusted by pushing the slide bar. When the groove moves to the bottom of any positioning pin, the positioning pin moves down and contracts, and the other positioning pin moves up and extends. This can facilitate the alternating replacement of the lifting or releasing state of the two positioning pins in the test fixture, thereby improving the work efficiency of the retractable state change of the two positioning pins.

[0023] 2. Through the coordinated setting of the cylinder, the first slide groove and the guide strip, the slide bar can be automatically driven to move and the guiding performance of the slide bar movement can be improved; at the same time, with the setting of the first disc, the second disc and the spring, the lifting or release of the positioning pin can be accurately controlled, so that the positioning pin directly above the groove can be retracted and moved down in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present disclosure;

[0026] Figure 2 is a schematic diagram of the overall structure of the embodiment of the present disclosure from different viewing angles;

[0027] Figure 3 is a partial structural schematic diagram of the first chute of an embodiment of the present disclosure;

[0028] Figure 4 is a partial structural schematic diagram of a transition plate of an embodiment of the present disclosure;

[0029] Figure 5 is a partial structural schematic diagram of a slider according to an embodiment of the present disclosure;

[0030] Figure 6 It is a partial structural schematic diagram of the spring of an embodiment of the present disclosure. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0032] Combined with this Figures 1 to 6To describe an embodiment of a clamping assembly that automatically switches the positioning pins and clamps the electric drive. Specifically, the clamping assembly that automatically switches the positioning pins and clamps the electric drive is constructed as a split structure, which has four parts, namely, a transition plate 200, a clamping plate 300, a positioning pin 400 and a slide bar 500. The position of the groove 501 can be adjusted by pushing the slide bar 500. When the groove 501 moves to the position directly below any positioning pin 400, the positioning pin 400 moves downward and contracts, and the other positioning pin 400 moves upward and extends, which can facilitate the alternating lifting or releasing state of the two positioning pins 400 in the test tooling, and improve the work efficiency of the telescopic state change of the two positioning pins 400.

[0033] Please refer to Figures 1 to 6 , a clamping assembly for automatically switching positioning pins and clamping electric drive, including a base plate 100, and also including:

[0034] A transition plate 200 is fixed on the bottom plate 100. A pair of vertically placed first round through holes 201 are formed on the transition plate 200. A horizontally placed first sliding groove 202 is formed at the bottom of the transition plate 200.

[0035] The clamping plate 300 is fixed to the upper end of the transition plate 200. The clamping plate 300 is provided with two second circular through holes 301 corresponding to the two first circular through holes 201. The second circular through holes 301 are coaxially arranged with the corresponding first circular through holes 201. The second circular through holes 301 are slidably connected with positioning pins 400.

[0036] The slide bar 500 is slidably engaged in the first slide groove 202, and the lower ends of the positioning pins 400 are in contact with the upper ends of the slide bar 500. A groove 501 is provided on the upper end surface of the slide bar 500. The bottom of the groove 501 is in a horizontal plane. The groove walls on both sides of the groove 501 are in an inclined position away from each other from bottom to top. When the groove 501 is located directly below any positioning pin 400, the lower end of the positioning pin 400 is in contact with the bottom of the groove 501, and the lower end of the other positioning pin 400 is in contact with the upper end surface of the slide bar 500.

[0037] The transition plate 200 is usually made of high-strength steel or aluminum alloy, which provides sufficient strength and rigidity to cope with mechanical stress and load. In order to increase corrosion resistance and extend service life, the surface of the transition plate 200 can be galvanized or anodized.

[0038] The clamping plate 300 is generally made of hardened steel. The clamping plate 300 is fixed to the upper end of the transition plate 200 to provide a solid mounting position. In order to further improve the wear resistance and corrosion resistance, the surface of the clamping plate can be chrome-plated or nickel-plated. In addition, easy loading and unloading and maintenance are also considered to facilitate quick replacement and repair.

[0039] The slide bar 500 is generally made of wear-resistant engineering plastics (such as polyoxymethylene POM) or surface-treated steel (such as carburized steel) to reduce friction and wear and extend service life. In order to further reduce friction and improve sliding performance, the surface of the slide bar 500 may include a lubricating coating or plating.

[0040] The product is placed on the clamping plate 300, and the positioning hole of the product is located directly above any positioning pin 400. The position of the groove 501 can then be adjusted by pushing the slide bar 500 to move, so that the groove 501 moves to directly below the other positioning pin 400; at this time, the positioning pin 400 directly below the product positioning hole is lifted up by the slide bar 500, and the lower end of the positioning pin 400 contacts the upper end surface of the slide bar 500, so that the positioning pin 400 moves up and is inserted into the positioning hole of the product to position the product; when replacing a product of another specification, when the positioning hole of the product is directly above the other positioning pin 400, the slide bar 500 can be pushed again to adjust the position of the groove 501, so that the telescopic state of the two positioning pins 400 can be changed; it can be convenient to change the telescopic state of the two positioning pins 400 in the test bench, thereby improving the work efficiency of changing the telescopic state of the two positioning pins 400.

[0041] When the position of the groove 501 is changed and adjusted, in order to facilitate the positioning pin 400 directly above the groove 501 to automatically move down to its lower end and contact the bottom of the groove 501, a first disc 6 placed coaxially is fixed in the second round through hole 301, and the positioning pin 400 passes through the first disc 6 and is slidably connected with it. A second disc 7 is fixedly sleeved on the positioning pin 400, and the second disc 7 is located directly below the first disc 6, and the second disc 7 can slide along the first round through hole 201 and the second round through hole 301. A spring 8 is provided, and both ends of the spring 8 are fixed to the first disc 6 and the second disc 7 respectively; during the movement of the slide bar 500, when the groove wall on any side of the groove 501 contacts the lower end of any positioning pin 400, as the slide bar 500 moves, the positioning pin 400 continuously moves upward along the inclined groove wall of the groove 501, and the upward movement of the positioning pin 400 drives the second disc 7, and the second disc 7 squeezes and compresses the spring 8; when the groove 501 moves to the bottom of any positioning pin 400, the spring 8 can push the second disc 7 and the positioning pin 400 downward under the action of the elastic force.

[0042] The spring 8 is always in a compressed state; when the groove 501 moves below any positioning pin 400, the positioning pin 400 can be easily obtained in time to move downward.

[0043] In order to facilitate the sliding of the positioning pin 400 and improve the guiding property of the movement of the positioning pin 400, a coaxially placed bushing 9 is fixed in each of the first round through holes 201. The bushing 9 is sleeved on the peripheral wall of the positioning pin 400 and is slidably connected thereto.

[0044] In order to facilitate automatic control of the movement and adjustment of the slide bar 500, a cylinder 10 is fixedly installed on the base plate 100, and a driving rod is provided at the output end of the cylinder 10 which is coaxially placed with the slide bar 500, and the driving rod is fixed to one end of the slide bar 500; the slide bar 500 is driven to move by the extension and retraction of the driving rod at the output end of the cylinder 10, so as to facilitate the position adjustment of the slide bar 500 and the groove 501.

[0045] In order to further improve the guiding property of the sliding bar 500, a second sliding groove 502 placed coaxially is opened at the lower end of the sliding bar 500, and a sliding and clamping guide bar 11 is provided in the second sliding groove 502, and the guide bar 11 is fixed on the bottom plate 100; the sliding bar 500 moves along the guide bar 11, which can further improve its guiding property during the movement process.

[0046] In order to monitor the position status of the two positioning pins 400 so as to accurately drive the corresponding positioning pins 400 to move up according to different product specifications, a pair of symmetrically placed support members 12 are provided above the base plate 100, one of the support members 12 is fixed on the base plate 100, and the other support member 12 is fixed on the transition plate 200, a pair of horizontally placed optical fiber counter-radiation sensor transmitting ends 121 is fixed on one of the support members 12, and a pair of optical fiber counter-radiation sensor receiving ends is fixed on the other support member 12, the two optical fiber counter-radiation sensor transmitting ends 121 correspond to the two positioning pins 400 one by one, the central axis of the optical fiber counter-radiation sensor transmitting end 121 passes through the central axis of the corresponding positioning pin 400, and the optical fiber counter-radiation sensor transmitting end 121 is connected to the corresponding optical fiber counter-radiation sensor receiving end through an optical fiber; when any positioning pin 400 moves up, the positioning pin 400 enters the middle of the optical path and blocks the light, the optical signal will be cut off, and the optical fiber counter-radiation sensor receiving end will not be able to receive the optical signal; by monitoring the changes in the optical signal, the position status of the two positioning pins 400 can be monitored.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The above shows and describes the basic principles, main features and advantages of the present disclosure. Those skilled in the art should understand that the present disclosure is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present disclosure. Without departing from the spirit and scope of the present disclosure, the present disclosure may have various changes and improvements, and these changes and improvements fall within the scope of the present disclosure to be protected.

Claims

1. A clamping assembly for automatically switching positioning pins and clamping electric drive, comprising a base plate (100), characterized in that: Also includes: A transition plate (200), the transition plate (200) is fixed on the bottom plate (100), a pair of vertically placed first round through holes (201) are provided on the transition plate (200), and a horizontally placed first sliding groove (202) is provided at the bottom of the transition plate (200); A clamping plate (300), the clamping plate (300) is fixed to the upper end of the transition plate (200), the clamping plate (300) is provided with two second circular through holes (301) corresponding to the two first circular through holes (201), the second circular through holes (301) are coaxially arranged with the corresponding first circular through holes (201), and positioning pins (400) are slidably connected in the second circular through holes (301); The slide bar (500) is slidably engaged in the first slide groove (202), the lower ends of the positioning pins (400) are in contact with the upper ends of the slide bar (500), the upper end surface of the slide bar (500) is provided with a groove (501), the bottom of the groove (501) is in a horizontal plane shape, and the groove walls on both sides of the groove (501) are in an inclined state away from each other from bottom to top. When the groove (501) is located directly below any positioning pin (400), the lower end of the positioning pin (400) is in contact with the bottom of the groove (501), and the lower end of the other positioning pin (400) is in contact with the upper end surface of the slide bar (500).

2. The clamping assembly for automatically switching the positioning pin and clamping the electric drive according to claim 1 is characterized in that: A first disc (6) coaxially arranged is fixed in each of the second through holes (301); a positioning pin (400) passes through the first disc (6) and is slidably connected thereto; a second disc (7) is fixedly sleeved on each of the positioning pins (400); the second disc (7) is located directly below the first disc (6), and the second disc (7) can slide along the first through hole (201) and the second through hole (301); a spring (8) is sleeved on each of the positioning pins (400); and both ends of the spring (8) are respectively fixed to the first disc (6) and the second disc (7).

3. The clamping assembly for automatically switching the positioning pin and clamping the electric drive according to claim 2 is characterized in that: The spring (8) is always in a compressed state.

4. The clamping assembly for automatically switching the positioning pin and clamping the electric drive according to claim 3 is characterized in that: A coaxially placed bushing (9) is fixed in each of the first round through holes (201), and the bushing (9) is sleeved on the peripheral wall of the positioning pin (400) and is slidably connected thereto.

5. The clamping assembly for automatically switching the positioning pin and clamping the electric drive according to claim 4, characterized in that: A cylinder (10) is fixedly mounted on the bottom plate (100), and a driving rod coaxially arranged with the slide bar (500) is provided at the output end of the cylinder (10), and the driving rod is fixed to one end of the slide bar (500).

6. The clamping assembly for automatically switching the positioning pin and clamping the electric drive according to claim 5, characterized in that: A second slide groove (502) placed coaxially is provided at the lower end of the slide bar (500), a guide bar (11) for sliding engagement is provided in the second slide groove (502), and the guide bar (11) is fixed on the bottom plate (100).

7. The clamping assembly for automatically switching the positioning pin and clamping the electric drive according to claim 6, characterized in that: A pair of symmetrically placed support members (12) are provided above the base plate (100), one of the support members (12) is fixed on the base plate (100), and the other support member (12) is fixed on the transition plate (200), one of the support members (12) is fixed with a pair of horizontally placed optical fiber counter-radiation sensor transmitting ends (121), and the other support member (12) is fixed with a pair of optical fiber counter-radiation sensor receiving ends, the two optical fiber counter-radiation sensor transmitting ends (121) correspond to the two positioning pins (400) one by one, the central axes of the optical fiber counter-radiation sensor transmitting ends (121) pass through the central axes of the corresponding positioning pins (400), and the optical fiber counter-radiation sensor transmitting ends (121) are connected with the corresponding optical fiber counter-radiation sensor receiving ends via optical fibers.

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