CN216913564U

CN216913564U - Self-locking clamping device

Info

Publication number: CN216913564U
Application number: CN202220600981.3U
Authority: CN
Inventors: 毛勇强; 孙武
Original assignee: Bozhon Precision Industry Technology Co Ltd
Current assignee: Bozhon Precision Industry Technology Co Ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-07-08
Anticipated expiration: 2032-03-18

Abstract

The utility model belongs to the technical field of tool fixtures, and discloses a self-locking clamping device, which comprises a clamping assembly and a self-locking assembly; the clamping assembly comprises two clamping arms and a first elastic resetting piece, the two clamping arms are hinged in a crossed mode, the clamping arms comprise clamping rods and clamping heads, two ends of the first elastic resetting piece are respectively abutted against the two clamping rods to push the two clamping rods to be away from each other, and the clamping rods comprise first self-locking blocks which are arranged oppositely; the self-locking assembly comprises a cover body and an elastic button which can be connected to the cover body in a sliding mode, and the elastic button comprises two second self-locking blocks; the self-locking assembly is provided with a locking state that the second self-locking block is clamped with the first self-locking block and a free state that the second self-locking block is abutted against the first self-locking block, and when the elastic button is pressed, the self-locking assembly can be switched between the free state and the locking state. The self-locking clamping device can be self-locked after clamping an object, so that an operator can conveniently liberate two hands for other operations, and the assembly efficiency is improved; the clamping and loosening operation to the object is quick and the use is convenient.

Description

Self-locking clamping device

Technical Field

The utility model relates to the technical field of tool fixtures, in particular to a clamping device capable of self-locking.

Background

Need use the clamping device of various supplementary equipment on the production line of equipment product, clamping device can carry out accurate clamping location to the equipment product on the one hand, promotes the equipment quality, and on the other hand, clamping device can solve some equipment products and be not convenient for handheld problem of operating. For some production lines with faster processing beats, the clamping device needs to frequently clamp and release assembled products, and the existing clamping device is often complex in structure, difficult to rapidly clamp and release the products and inconvenient to use; or still need the supplementary fixed of operating personnel after the centre gripping equipment product, unable auto-lock, the operating personnel of being inconvenient for liberate both hands and carry out other operations, the packaging efficiency is lower.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a clamping device capable of self-locking, which can self-lock after clamping an object, is convenient for an operator to free hands for other operations, and improves the assembly efficiency; and can realize the clamping and loosening to the object fast, easy operation, convenient to use.

In order to achieve the purpose, the utility model adopts the following technical scheme:

there is provided a self-lockable clamping device comprising:

the clamping assembly comprises two clamping arms and a first elastic resetting piece, the two clamping arms comprise clamping rods and clamping heads, the two clamping heads are configured to clamp objects, two ends of the first elastic resetting piece are respectively abutted against the two clamping rods so as to push the two clamping rods to be away from each other, the clamping rods comprise first self-locking blocks, and the two first self-locking blocks are oppositely arranged;

the self-locking assembly comprises a cover body and an elastic button which is slidably connected to the cover body, the elastic button comprises two second self-locking blocks, and the two second self-locking blocks correspond to the two first self-locking blocks respectively; the self-locking assembly is provided with a second self-locking block clamped with the locking state of the first self-locking block and a free state of the first self-locking block, and when the elastic button is configured to be pressed, the self-locking assembly can be switched between the free state and the locking state.

As a preferable structure of the present invention, the cover includes a lower cover and an upper cover detachably connected to the lower cover, the upper cover is provided with a guide hole, and the elastic button is located between the lower cover and the upper cover, and one end of the elastic button slidably passes through the guide hole.

As a preferable structure of the present invention, the lower cover further includes a support block, and the support block abuts against the upper cover.

As a preferable structure of the present invention, the elastic button further includes a pressing block, the pressing block is disposed between the two second self-locking blocks, and the pressing block is slidably disposed in the guide hole.

As a preferred structure of the present invention, the self-locking assembly further includes a second elastic reset member, and two ends of the second elastic reset member respectively abut against the lower cover body and the elastic button.

As a preferable structure of the present invention, the elastic button has a guide cavity with an opening at one end, and the second elastic restoring member is disposed in the guide cavity, and one end of the second elastic restoring member abuts against the lower cover body.

As a preferable structure of the present invention, the first self-locking piece includes a first abutting surface, the second self-locking piece includes a second abutting surface, and when the two first self-locking pieces are configured to be close to each other, the first abutting surface can push against the second abutting surface, so that the elastic button slides to compress the second elastic resetting piece.

As a preferred structure of the present invention, the clamping bar is provided with two fixing holes, the two fixing holes are oppositely disposed, and two ends of the first elastic reset piece are respectively clamped to the two fixing holes.

As a preferred structure of the present invention, the clamping assembly further comprises hinge shafts, wherein one of the clamping rods is provided with a connecting groove, the hinge shafts are located in the connecting groove, and the other clamping rod passes through the connecting groove to rotatably connect the hinge shafts.

As a preferred structure of the present invention, the clamp arm further comprises at least one fastener configured to connect the clamp bar and the collet.

The utility model has the beneficial effects that:

according to the clamping device capable of self-locking, the self-locking assembly can be switched between the locking state that the second self-locking block is clamped with the first self-locking block and the free state that the second self-locking block is abutted against the first self-locking block, and the chuck can self-lock after clamping an object, so that an operator can conveniently liberate two hands for other operations, and the assembly efficiency is improved; the elastic button can slide up and down and elastically reset, so that the object can be clamped and loosened quickly, and the use is convenient.

Drawings

FIG. 1 is a schematic structural diagram of a self-lockable clamping device according to an embodiment of the utility model;

FIG. 2 is a disassembled schematic view of a self-lockable clamping device according to an embodiment of the utility model;

FIG. 3 is a cross-sectional view of the self-locking assembly in a free state according to an embodiment of the present invention;

fig. 4 is a structural sectional view of the self-locking assembly in a locking state according to the embodiment of the utility model.

In the figure:

1. a clamping assembly; 11. a clamp arm; 111. a clamping bar; 1110. a first abutting surface; 1111. a first self-locking block; 1112. a fixing hole; 1113. connecting grooves; 112. a chuck; 12. a first elastic reset member; 13. hinging a shaft; 14. a fastener; 2. a self-locking assembly; 21. a cover body; 211. a lower cover body; 2111. a support block; 212. an upper cover body; 2121. a guide hole; 22. an elastic button; 221. a second self-locking block; 2211. a second abutting surface; 222. a pressing block; 223. a guide cavity; 23. a second elastic reset piece; 3. and (5) fixing blocks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1 to 4, an embodiment of the present invention provides a self-lockable clamping device, which includes a clamping assembly 1 and a self-locking assembly 2. The clamping assembly 1 comprises two clamping arms 11 and a first elastic resetting piece 12 which are hinged in a crossing mode, wherein the clamping arms 11 comprise clamping rods 111 and clamping heads 112, and the two clamping heads 112 are configured to clamp an object; two ends of the first elastic resetting piece 12 are respectively abutted against the two clamping rods 111 to push the two clamping rods 111 to be away from each other, and it can be understood that when the two clamping rods 111 rotate around the hinge joint to be away from each other, the two clamping heads 112 are in an open state, and an object can be placed between the two clamping heads 112; when the two clamping rods 111 rotate around the hinge to approach each other, the two clamping heads 112 are in a folded state to clamp the object. The clamping bar 111 comprises first self-locking blocks 1111, and the two first self-locking blocks 1111 are arranged oppositely; the self-locking assembly 2 comprises a cover body 21 and an elastic button 22 slidably connected to the cover body 21, wherein the elastic button 22 comprises two second self-locking blocks 221, and the two second self-locking blocks 221 correspond to the two first self-locking blocks 1111 respectively; self-locking assembly 2 has a locking state in which second self-locking piece 221 is clamped with first self-locking piece 1111 and a free state in which second self-locking piece 221 abuts against first self-locking piece 1111, and when elastic button 22 slides, self-locking assembly 2 can be switched between the free state and the locking state. When the self-locking assembly 2 is in a free state, the two clamping rods 111 can rotate freely, and an object can be placed between the two opened clamping heads 112; when the elastic button 22 is pressed, the elastic button 22 slides downwards on the cover body 21, the two first self-locking blocks 1111 are not abutted to the second self-locking block 221 any more, at this time, the two clamping rods 111 are held by hands to enable the two clamping rods 111 to rotate and fold, the two first self-locking blocks 1111 can approach each other, when the elastic button 22 is elastically reset and slides upwards in a reverse direction, the first self-locking blocks 1111 are clamped with the second self-locking blocks 221, the self-locking assembly 2 is in a locking state, and at this time, the two chucks 112 clamp objects and cannot loosen; after the object is assembled, the elastic button 22 is pressed to slide downwards, the second self-locking block 221 is no longer clamped with the first self-locking block 1111, the two clamping rods 111 rotate to be away from each other under the action of the elastic force of the first elastic resetting piece 12, and the two clamping heads 112 are released to clamp the object and are in an open state. The self-locking clamping device provided by the embodiment of the utility model can be self-locked after clamping an object, so that an operator can conveniently free hands to perform other operations, the assembly efficiency is improved, and the clamping and loosening operations on the object are simple and the use is convenient. The first elastic restoring element 12 may be an elastic element such as a compression spring or a spring plate, as long as it can apply an elastic pre-tightening force to the two clamping bars 111, and is not limited to the drawings of this embodiment.

Preferably, but clamping device of auto-lock of this embodiment still includes fixed block 3, and fixed block 3 can be dismantled and connect on auto-lock subassembly 2, and fixed block 3 can be used for connecting the frock clamp on the production line to be fixed in frock clamp with centre gripping subassembly 1 and auto-lock subassembly 2 on, convenient to use.

Preferably, the cover 21 includes a lower cover 211 and an upper cover 212 detachably connected to the lower cover 211, the upper cover 212 is provided with a guide hole 2121, and the elastic button 22 is located between the lower cover 211 and the upper cover 212, and one end of the elastic button slidably passes through the guide hole 2121. The guide hole 2121 can provide a sliding guide for the elastic button 22, and the up-and-down sliding operation of the elastic button 22 can be more smooth.

Preferably, the lower cover 211 further includes a supporting block 2111, and the supporting block 2111 abuts against the upper cover 212. The supporting block 2111 can adjust the interval between the lower cover 211 and the upper cover 212 to facilitate the rotation of the clamping bar 111 and the sliding of the elastic button 22. In addition, the supporting block 2111 is further provided with a mounting hole, and the lower cover 211 and the upper cover 212 can be connected by the engagement of a fastener with the mounting hole.

Preferably, the elastic button 22 further includes a pressing block 222, the pressing block 222 is disposed between the two second self-locking blocks 221, and the pressing block 222 slides in the guide hole 2121. In the present embodiment, the shape of the pressing block 222 may be set according to the shape of the guide hole 2121, and may be a cylindrical shape, a square column shape, and the like, which is not limited herein. The top end of the pressing block 222 is provided with a smooth chamfered edge, so that the pressing hand feeling is better.

Preferably, the self-locking assembly 2 further includes a second elastic restoring member 23, and two ends of the second elastic restoring member 23 respectively abut against the lower cover 211 and the elastic button 22. The elastic button 22 can automatically and elastically reset through the second elastic resetting piece 23, and the operation is more convenient. When pressing elastic button 22, second elasticity resets 23 and is compressed, and the elasticity that resets 23 when the second elasticity resets acts on elastic button 22 and makes it upwards slide reset, and self-locking subassembly 2 accomplishes the conversion of free state and locking state, and the second is from first self-locking piece 1111 of locking piece 221 joint or second is from first self-locking piece 1111 of locking piece 221 butt, is convenient for press the operation next time. The second elastic reset element 23 may be an elastic element such as a compression spring or a spring plate, as long as it can apply an elastic pre-tightening force to the elastic button 22, and is not limited to the drawings of this embodiment.

Preferably, the elastic button 22 has a guide cavity 223 with one end open, and the second elastic restoring member 23 is disposed in the guide cavity 223 and has one end abutting against the cover 21. In this embodiment, the second elastic restoring member 23 is a compression spring, the guide cavity 223 provides a guide for the compression spring, and the second elastic restoring member 23 is compressed or elastically restored in the guide cavity 223, so as to prevent the second elastic restoring member 23 from twisting and affecting the elastic restoration of the elastic button 22.

Preferably, the first self-locking piece 1111 includes a first abutting surface 1110, and the second self-locking piece 221 includes a second abutting surface 2211, when the two first self-locking pieces 1111 approach each other, the first abutting surface 1110 can push against the second abutting surface 2211, so that the elastic button 22 slides to compress the second elastic restoring member 23. As shown in fig. 3 and 4, the first abutting surface 1110 and the second abutting surface 2211 are inclined surfaces relative to the plane where the lower cover 211 or the upper cover 212 is located, when the two clamping bars 111 are held by hands to rotate and close to each other, the two first self-locking blocks 1111 simultaneously close to each other, and the first abutting surface 1110 pushes against the second abutting surface 2211, so that the elastic button 22 slides and compresses the second elastic resetting piece 23; until the second self-locking block 221 is separated from the pushing of the first self-locking block 1111, the second elastic reset piece 23 enables the elastic button 22 to elastically reset and slide upwards, the second self-locking block 221 is clamped with the first self-locking block 1111, the self-locking assembly 2 is in a locking state, at this time, the two chucks 112 clamp objects and do not loosen, and an operator does not need to hold the clamping rod 111. Through the first abutting surface 1110 and the second abutting surface 2211 which are obliquely arranged, the elastic button 22 does not need to be pressed, the two clamping rods 111 are tightly held to be folded, the locking state of the self-locking assembly 2 can be realized, and the operation is more convenient.

Preferably, the clamping bar 111 is provided with two fixing holes 1112, the two fixing holes 1112 are oppositely arranged, and two ends of the first elastic restoring member 12 are respectively engaged with the two fixing holes 1112. The fixing hole 1112 can limit the first elastic restoring member 12 and prevent the first elastic restoring member 12 from moving.

Preferably, the clamping assembly 1 further includes hinge shafts 13, wherein one of the clamping rods 111 is provided with a connecting groove 1113, the hinge shaft 13 is located in the connecting groove 1113, and the other clamping rod 111 passes through the connecting groove 1113 to rotatably connect the hinge shaft 13. Connecting groove 1113 can provide and rotate spacingly, when first elasticity resets 12 and pushes away two clamping bar 111 and rotate around articulated shaft 13, is located the cell wall of connecting groove 1113's clamping bar 111 butt connecting groove 1113 and stall for the biggest contained angle between two clamping bar 111 is the definite value, and the operating personnel one-hand of being convenient for is held, and the operation is more humanized.

Preferably, the clamping arm 11 further comprises at least one fastener 14, the fastener 14 being configured to connect the clamping bar 111 and the clamping head 112. The fastener 14 can be a stud, and is in threaded connection with the clamping rod 111 and the clamping head 112, so that the clamping head 112 can be detached; when clamping objects with different sizes or shapes, or when the chuck 112 is worn and can not clamp the objects, the chuck 112 can be replaced, so that the self-locking clamping device of the embodiment has better universality.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A self-lockable clamping device, comprising:

the clamping assembly (1) comprises two clamping arms (11) and a first elastic resetting piece (12), wherein the two clamping arms (11) are hinged in a crossed mode, the two clamping heads (112) are configured to clamp an object, two ends of the first elastic resetting piece (12) are respectively abutted against the two clamping rods (111) to push the two clamping rods (111) to be away from each other, the clamping rods (111) comprise first self-locking blocks (1111), and the two first self-locking blocks (1111) are arranged oppositely;

the self-locking assembly (2) comprises a cover body (21) and an elastic button (22) which is slidably connected to the cover body (21), the elastic button (22) comprises two second self-locking blocks (221), and the two second self-locking blocks (221) correspond to the two first self-locking blocks (1111) respectively; the self-locking assembly (2) has a locking state that the second self-locking block (221) is clamped with the first self-locking block (1111) and a free state that the second self-locking block (221) abuts against the first self-locking block (1111), and when the elastic button (22) is pressed, the self-locking assembly (2) can be switched between the free state and the locking state.

2. The self-lockable clamping device according to claim 1, characterized in that the cover (21) comprises a lower cover (211) and an upper cover (212) detachably connected to the lower cover (211), the upper cover (212) is provided with a guide hole (2121), the elastic button (22) is located between the lower cover (211) and the upper cover (212), and one end of the elastic button slidably passes through the guide hole (2121).

3. The self-lockable clamping device according to claim 2, characterized in that the lower cover (211) further comprises a support block (2111), the support block (2111) abutting the upper cover (212).

4. The self-lockable gripping device according to claim 2, characterized in that the resilient button (22) further comprises a pressing block (222), the pressing block (222) being arranged between the two second self-locking blocks (221), the pressing block (222) being slidably arranged in the guide hole (2121).

5. The self-lockable gripping device according to claim 2, the self-locking assembly (2) further comprising a second elastic return member (23), wherein two ends of the second elastic return member (23) abut against the lower cover (211) and the elastic button (22), respectively.

6. Self-lockable clamping device according to claim 5, characterized in that the resilient button (22) has a guide cavity (223) open at one end, the second resilient return member (23) being arranged in the guide cavity (223) with one end abutting the lower cover (211).

7. Self-lockable gripping device according to claim 5, characterized in that the first self-locking block (1111) comprises a first abutment surface (1110) and the second self-locking block (221) comprises a second abutment surface (2211), the first abutment surface (1110) being able to push against the second abutment surface (2211) when the two first self-locking blocks (1111) are arranged close to each other, so that the elastic button (22) slidingly compresses the second elastic return member (23).

8. The clamping device with self-locking function according to claim 1, wherein the clamping rod (111) is provided with two fixing holes (1112), the two fixing holes (1112) are oppositely arranged, and two ends of the first elastic reset piece (12) are respectively clamped with the two fixing holes (1112).

9. Self-lockable clamping device according to claim 8, characterized in that the clamping assembly (1) further comprises articulated shafts (13), wherein one of the clamping bars (111) is provided with a connecting slot (1113), the articulated shaft (13) is located in the connecting slot (1113), and the other clamping bar (111) passes through the connecting slot (1113) to be rotatably connected with the articulated shaft (13).

10. Self-lockable gripping device according to any of claims 1-9, the gripping arm (11) further comprising at least one fastener (14), the fastener (14) being configured to connect the gripper bar (111) and the collet (112).