CN216991557U

CN216991557U - Resilience formula presss from both sides tight arm frock

Info

Publication number: CN216991557U
Application number: CN202220315418.1U
Authority: CN
Inventors: 李豪; 张宇; 潘秋霖; 罗韵
Original assignee: Swell Marui Guangzhou Automobile Parts Co ltd
Current assignee: Swell Marui Guangzhou Automobile Parts Co ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-07-19
Anticipated expiration: 2032-02-16

Abstract

The utility model discloses a rebound type clamping arm tool which comprises a support, two clamping arms, a first elastic piece and an opening driving mechanism, wherein the number of the clamping arms is two, the middle parts of the clamping arms are provided with hinged parts hinged with the support, and the upper end and the lower end of each clamping arm are divided into a clamping end and a connecting end; the first elastic piece is connected between the two connecting ends and is used for enabling the two connecting ends to be spread towards the left side and the right side so as to enable the two clamping ends to be close to each other; the opening driving mechanism comprises a lifting driving assembly and a sliding block arranged between two clamping arms, sliding structures are arranged between the clamping arms and the sliding block, and the left end and the right end of the sliding block are respectively in sliding connection with the clamping arms through the two sliding structures. The resilience type clamping arm tool clamps the workpiece by using the elasticity of the first elastic piece, and controls the clamping or the opening of the clamping end by using the opening driving mechanism, so that the control is more convenient.

Description

Resilience formula presss from both sides tight arm frock

Technical Field

The utility model relates to the technical field of clamping tools, in particular to a springback type clamping arm tool.

Background

As the industry continues to develop, products range from single models to complex and varied structures that also require compression, shear, etc. testing. Generally, taking a universal testing machine as an example, a test clamping tool clamps a workpiece by manually screwing a driving piece, so that physical strength is consumed in the clamping process, the working efficiency is low, and the operating intensity of personnel is high. There are also some elastic clamping members on the market, but for some larger workpieces, the clamping is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a resilient clamping arm tool, which is used for solving one or more technical problems in the prior art and at least provides a beneficial selection or creation condition.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a rebound type clamping arm tool which comprises a support, two clamping arms, a first elastic piece and an opening driving mechanism. The clamping arms are arranged oppositely from left to right, the middle parts of the clamping arms are provided with hinged parts hinged with the support, and the upper end and the lower end of each clamping arm are divided into a clamping end and a connecting end; the first elastic piece is connected between the two connecting ends and used for enabling the two connecting ends to be unfolded towards the left side and the right side so as to enable the two clamping ends to be close to each other; the opening driving mechanism comprises a lifting driving assembly and a sliding block arranged between two clamping arms, sliding structures are arranged between the clamping arms and the sliding block, the left end and the right end of the sliding block are respectively in sliding connection with the clamping arms through the two sliding structures, and the lifting driving assembly is provided with a lifting driving end which is in transmission connection with the sliding block and enables the sliding block to move up and down relative to the support so as to drive the two clamping ends to be opened left and right

The utility model has the beneficial effects that:

when a workpiece needs to be clamped, the lifting driving assembly drives the sliding block to move upwards or downwards so as to drive the two clamping ends to be unfolded leftwards and rightwards, the workpiece is placed between the clamping ends, then the sliding block returns to the original position, and the clamping ends of the two clamping arms continue to clamp the workpiece under the action of the first elastic piece. The resilience type clamping arm tool clamps the workpiece by using the elasticity of the first elastic piece, and controls the clamping or the opening of the clamping end by using the opening driving mechanism, so that the control is more convenient.

As the further improvement of the technical scheme, the two clamping arms are provided with the sliding sections which are obliquely arranged in the left and right directions, the two sliding sections which are obliquely arranged in the left and right directions are splayed or inverted splayed, the left end and the right end of each sliding block are respectively arranged in a sliding mode with the corresponding sliding sections, and the structure is more compact.

As the further improvement of the technical scheme, the sliding structure comprises a sliding groove arranged on the clamping arm and sliding parts arranged at the left end and the right end of the sliding block, and the sliding parts are arranged in the sliding groove in a sliding mode, so that the sliding is more stable.

As the further improvement of the technical scheme, the lifting driving assembly comprises a cam block, the cam block is hinged to the support and arranged between the two clamping arms, the cam block is arranged below the sliding block, and the cam block is connected with a cam handle.

The cam handle is moved downwards or upwards, the clamping ends of the two clamping arms are spread, a workpiece can be placed in the clamping arms, the cam handle is loosened, the clamping ends of the clamping arms continue to be clamped under the action of the first elastic piece, and manual operation is labor-saving.

As a further improvement of the above solution, the driving member comprises a cam handle or an electric motor.

The cam handle is pressed downwards by using the cam handle, the clamping ends of the two clamping arms are spread, a workpiece can be placed in the clamping arms, the cam handle is loosened, and the clamping ends of the clamping arms continue to be clamped under the action of the first elastic piece; the clamping ends of the two clamping arms are spread apart without the need for a person to manually use the motor.

As a further improvement of the technical scheme, a second elastic piece is arranged between the lower side wall of the sliding block and the support, and the second elastic piece enables the sliding block to move upwards or downwards relative to the support.

Use the sliding block upwards to make two clamping ends prop open to the left and right for the support as an example, when the clamping end propped open to the left and right, the second elastic component was in tensile state, loosens the cam handle, and the second elastic component makes the sliding block remove downwards fast under the elastic shrinkage effect, in time presss from both sides the work piece tightly.

As above-mentioned technical scheme's further improvement, the second elastic component is springback spring, and springback spring's quantity is two, and two springback spring's upper end sets up respectively in the left and right sides both ends of sliding block, and two springback spring's lower extreme all sets up in the support, provides the rebound effect better.

As a further improvement of the technical scheme, the lifting driving assembly comprises a motor, and the automation degree is improved through the driving of the motor.

As the further improvement of the technical scheme, the rebound type clamping arm tool further comprises a bottom plate and a fixing piece, the bottom plate is provided with a plurality of fixing holes, the support is arranged on the bottom plate and provided with a base, a plurality of adjusting holes penetrating through the base from top to bottom are formed in the base, and the fixing piece penetrates through the adjusting holes and is connected with the bottom plate in a threaded mode.

The position of the adjusting bracket relative to the bottom plate is fixed by a fixing piece, namely the position of the rebound type clamping arm tool is adjustable.

As a further improvement of the technical scheme, the bottom plate is provided with a rotating assembly, and the rebound type clamping arm tool rotates relative to a fixed position, such as a table top of a universal testing machine.

As the further improvement of the technical scheme, the rebound type clamping arm tool further comprises a supporting component arranged on the lower surface of the bottom plate, on one hand, the supporting effect is achieved, on the other hand, after the rotating component is rotationally fixed, the bottom plate is further fixed, and the bottom plate is prevented from rotating continuously.

Drawings

The utility model is further described with reference to the accompanying drawings and examples;

fig. 1 is a schematic structural diagram of an embodiment of the resilient clamp arm tooling provided by the present invention, wherein six arrows respectively indicate a forward direction, a backward direction, a left direction, a right direction, an upward direction and a downward direction;

fig. 2 is a schematic structural diagram of an embodiment of the resilient clamping arm tooling provided by the utility model, wherein six arrows respectively represent a forward direction, a backward direction, a left direction, a right direction, an upward direction and a downward direction;

fig. 3 is a schematic front structural view of an embodiment of the resilient clamping arm tooling provided in the present invention, wherein four arrows respectively indicate a left direction, a right direction, an upward direction and a downward direction;

FIG. 4 is a schematic cross-sectional view taken at A-A in FIG. 3, wherein four arrows indicate forward, backward, upward and downward directions, respectively;

fig. 5 is a schematic view of a resilient clamping arm tooling provided by the utility model, which is used in a universal testing machine according to an embodiment of the resilient clamping arm tooling.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are described, the meaning is one or more, the meaning of a plurality is two or more, more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 5, the resilient clamp arm tooling of the present invention is made in the following embodiments:

in some embodiments, a resilient clamp arm tooling includes a bracket 100, two clamp arms 200, a first resilient member 220, and an opening drive mechanism. The resilience type clamping arm tool can be arranged on a universal testing machine, clamps a workpiece and is matched with the universal testing machine for testing.

The number of the clamping arms 200 is two, the two clamping arms 200 are oppositely arranged left and right, the middle part of the clamping arm 200 is provided with a hinge part hinged with the bracket 100, and the upper end and the lower end of the clamping arm 200 are divided into a clamping end 210 and a connecting end. For better clamping of the workpiece, the clamping end 210 is provided with a clamping block.

The first elastic element 220 is connected between the two connecting ends, and the first elastic element 220 is used for expanding the two connecting ends to the left and right sides so as to enable the two clamping ends 210 to approach each other. The first elastic member 220 is a spring, and may be an elastic band having elasticity. And the bracket 100 is provided with a channel extending left and right, a spring is arranged in the channel and extends out from two ends of the channel to be respectively connected with two connecting ends, and the lower ends of the two connecting ends enable the clamping ends 210 of the two clamping arms 200 to be clamped with each other through the spring extending left and right.

The opening driving mechanism is mainly used for driving the two clamping ends 210 to be opened leftwards and rightwards. The opening driving mechanism comprises a lifting driving assembly and a sliding block 320 arranged between the two clamping arms 200, sliding structures are arranged between the clamping arms 200 and the sliding block 320, the left end and the right end of the sliding block 320 are respectively in sliding connection with the clamping arms 200 through the two sliding structures, the lifting driving assembly is provided with a lifting driving end which is in transmission connection with the sliding block 320 and enables the sliding block 320 to move up and down relative to the support 100 so as to drive the two clamping ends 210 to be opened left and right, the clamping or opening of the clamping ends 210 is controlled by the opening driving mechanism, and the control is more convenient.

Further, the sliding structure makes the sliding between the sliding block 320 and the clamping arm 200 more stable, and the sliding structure may be a sliding block structure or a sliding rail structure. In this embodiment, the sliding structure includes a sliding groove disposed on the clamping arm 200 and sliding portions disposed at the left and right ends of the sliding block 320, and the sliding portions are slidably disposed in the sliding groove, so that the sliding is more stable. In other embodiments, the sliding portion is provided with a sliding groove, which is interactively provided at an upper portion of the clamp arm 200.

Further, the two clamping arms 200 are provided with sliding sections which are obliquely arranged in the left-right direction, the two sliding sections which are obliquely arranged in the left-right direction are in an inverted splayed shape, the left end and the right end of the sliding block 320 are respectively arranged in a sliding manner with the sliding sections, and when the sliding block 320 moves upwards, the two clamping ends 210 are opened leftwards and rightwards. When the two sliding sections inclined left and right are in a splayed shape, the two clamping ends 210 are spread left and right when the sliding block 320 moves downward.

Further, the lifting driving assembly comprises a cam block 310, the cam block 310 is hinged to the bracket 100, the cam block 310 is disposed between the two clamping arms 200, the cam block 310 is disposed below the sliding block 320, and the cam block 310 is connected with a cam handle 330. In this embodiment, the cam handle 330 is moved downward, the clamping ends 210 of the two clamping arms 200 are spread open, a workpiece can be placed in the clamping ends, the cam handle 330 is released, and the sliding block 320 can move downward under the action of gravity, so that the clamping ends 210 of the two clamping arms 200 continue to clamp, and manual operation is labor-saving.

For more timely clamping of the workpiece, a second elastic member is disposed between the lower sidewall of the sliding block 320 and the bracket 100, and the second elastic member causes the sliding block 320 to move upward or downward relative to the bracket 100. Taking the sliding block 320 as an example, the two clamping ends 210 are opened left and right relative to the bracket 100, when the clamping ends 210 are opened left and right, the second elastic member is in a stretching state, the cam handle 330 is released, and the second elastic member makes the sliding block 320 move downward rapidly under the elastic contraction effect, so as to clamp the workpiece in time.

Wherein, the second elastic component is rebound spring 340, and the quantity of rebound spring 340 is two, and the upper end of two rebound springs 340 sets up respectively in the left and right sides both ends of sliding block 320, and the lower extreme of two rebound springs 340 all sets up in support 100, provides better rebound effect.

In practical use, the cam block 310 may be driven to rotate by a motor, so that the clamping ends 210 of the two clamping arms 200 do not need to be opened by manually rotating the cam block 310 by a human hand. The sliding block 320 can be directly driven by the motor to move up and down to open the clamping ends 210 of the two clamping arms 200, so that the design is not only free from manual driving, but also simpler in structure.

In addition, in order to make the position of the resilience type clamping arm tool adjustable, the resilience type clamping arm tool further comprises a bottom plate 400 and a fixing piece 500, the bottom plate 400 is provided with a plurality of fixing holes 420, the support 100 is arranged on the bottom plate 400, the support 100 is provided with a base 110, the base 110 is provided with a plurality of adjusting holes 111 which vertically penetrate through the base 110, and the fixing piece 500 is in threaded connection with the bottom plate 400 after penetrating through the adjusting holes 111. The adjusting hole 111 extends left and right or extends front and back, the position of the adjusting bracket 100 relative to the bottom plate 400 is adjusted, and the adjusting bracket is fixed by the fixing member 500, namely the position of the resilience type clamping arm tool can be adjusted. The fixing member 500 may be a screw, and the fixing member 500 may be a plurality of members to improve the fixing effect.

Further, in order to enable the rebound type clamping arm tool to rotate relative to the table top of the universal testing machine, the base plate 400 is provided with a rotating assembly 410, and the rebound type clamping arm tool is fixed in a relative position. The rotating assembly 410 comprises a rotating column which is rotatably arranged on the table top of the universal testing machine. The rotating assembly 410 may also be a motor.

Further, in order to further improve the stability of bottom plate 400 and reduce the rotation of bottom plate 400 relative to the table surface of universal tester in the clamping process, the resilience type clamping arm tool further comprises a supporting component 600 arranged on the lower surface of bottom plate 400, so that the supporting function is achieved on one hand, and on the other hand, after rotating component 410 is rotationally fixed, bottom plate 400 is further fixed, and bottom plate 400 is prevented from rotating continuously.

The supporting component 600 can be a common supporting rod, and the supporting rod sequentially penetrates through the base 110 and the bottom plate 400 from top to bottom and then extends into the table top of the universal testing machine to play a role in fixing; or a plurality of support rods can be directly clamped between the bottom plate 400 and the table top of the universal testing machine; a support assembly 600 may also be provided, the support assembly 600 including a support portion 610 and a support seat 620, the support seat 620 being threadedly coupled to the support portion 610. After rotating suitable position, rotatory supporting seat 620 for supporting seat 620 plays support and fixed action with the mesa butt of the tight arm frock of installation resilience formula clamp. In this embodiment, the number of the supporting components 600 is four, and the four supporting components 600 are uniformly distributed below the bottom plate 400, so as to better support and further fix the bottom plate 400.

While the preferred embodiments of the present invention have been described in detail, it is to be understood that the utility model is not limited to the precise embodiments, and that various equivalent changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides a resilience formula clamping arm frock which characterized in that includes:

a support (100);

the clamping arms (200) are arranged in a left-right opposite mode, the middle of each clamping arm (200) is provided with a hinged part hinged with the support (100), and the upper end and the lower end of each clamping arm (200) are divided into a clamping end (210) and a connecting end;

the first elastic piece (220) is connected between the two connecting ends, and the first elastic piece (220) is used for expanding the two connecting ends towards the left side and the right side so as to enable the two clamping ends (210) to be close to each other;

the opening driving mechanism comprises a lifting driving component and a sliding block (320) arranged between two clamping arms (200), sliding structures are arranged between the clamping arms (200) and the sliding block (320), the left end and the right end of the sliding block (320) are connected with the clamping arms (200) in a sliding mode through the two sliding structures respectively, and the lifting driving component is provided with a lifting driving end which is in transmission connection with the sliding block (320) and enables the sliding block (320) to move up and down relative to the support (100) to drive the two clamping ends (210) to be opened left and right.

2. The resilient clamping arm tool according to claim 1, wherein:

two clamping arm (200) all are provided with the sliding section that left right direction slope set up, and the sliding section that two slopes to set up about is the splayed or falls the splayed, the left and right sides both ends of sliding block (320) respectively with the sliding section slides and sets up.

3. The resilience formula clamp arm frock of claim 1, its characterized in that:

the sliding structure comprises a sliding groove arranged on the clamping arm (200) and sliding parts arranged at the left end and the right end of the sliding block (320), and the sliding parts are arranged in the sliding groove in a sliding mode.

4. The resilient clamping arm tool according to claim 1, wherein:

the lifting driving assembly comprises a cam block (310), the cam block (310) is hinged to the support (100), the cam block (310) is arranged between the two clamping arms (200), the cam block (310) is arranged below the sliding block (320), and the cam block (310) is connected with a cam handle (330).

5. The resilient clamping arm tool according to claim 4, wherein:

a second elastic piece is arranged between the lower side wall of the sliding block (320) and the bracket (100), and the second elastic piece enables the sliding block (320) to move upwards or downwards relative to the bracket (100).

6. The resilient clamping arm tooling of claim 5, wherein:

the second elastic component is rebound spring (340), the quantity of rebound spring (340) is two, two the upper end of rebound spring (340) set up respectively in both ends about sliding block (320), two the lower extreme of rebound spring (340) all set up in support (100).

7. The resilient clamping arm tool according to claim 1, wherein:

the lift drive assembly includes a motor.

8. The resilience formula clamp arm frock of claim 1, its characterized in that:

the rebound type clamping arm tool further comprises a bottom plate (400) and a fixing piece (500), the bottom plate (400) is provided with a plurality of fixing holes (420), the support (100) is arranged on the bottom plate (400), the support (100) is provided with a base (110), the base (110) is provided with a plurality of adjusting holes (111) which penetrate through the base (110) from top to bottom, and the fixing piece (500) penetrates through the adjusting holes (111) and then is in threaded connection with the bottom plate (400).

9. The resilient clamping arm tooling of claim 8, wherein:

the base plate (400) is provided with a rotating assembly (410).

10. The resilient clamping arm tooling of claim 9, wherein:

the resilience type clamping arm tool further comprises a supporting component (600) arranged on the lower surface of the bottom plate (400).