CN212794633U

CN212794633U - Clamp forceps

Info

Publication number: CN212794633U
Application number: CN202021148060.5U
Authority: CN
Inventors: 张昕; 王攀攀; 赵继妮
Original assignee: FAW Volkswagen Automotive Co Ltd
Current assignee: FAW Volkswagen Automotive Co Ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-03-26
Anticipated expiration: 2030-06-19

Abstract

The utility model provides a clamp, which comprises a first clamping arm, a second clamping arm, a first pin shaft, a second pin shaft and a screw rod, wherein the first clamping arm is hinged with the second clamping arm, the first pin shaft is hinged with the first clamping arm, the second pin shaft is hinged with the second clamping arm, the screw rod is rotatably connected with the first pin shaft, the first pin shaft is fixed in the axial direction of the screw rod, the second pin shaft is in threaded connection with the screw rod, and the first pin shaft is positioned above the second pin shaft; the screw rod is rotated to enable the second pin shaft to move along the axial direction of the screw rod, so that the first clamping arm and the second clamping arm are driven to move in an opening and closing mode relatively. The utility model provides a clamp has solved the not enough problem in F type clamp space, and volume and weight are littleer, portable and use.

Description

Clamp forceps

Technical Field

The utility model relates to an anchor clamps field, concretely relates to clamp.

Background

In the processes of machining and automobile part testing, some parts are often clamped and fixed by using a clamp. When the existing F-shaped clamp is used for fastening, the space requirement on the bolt screwing direction is high, the situation that the space in the bolt screwing direction is insufficient frequently occurs in the actual use process, and at the moment, the F-shaped clamp cannot be used for fixing.

In view of the above-mentioned drawbacks, the authors of the present invention have finally obtained the present invention through long-term research and practice.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical defect, the utility model provides a clamp has solved the not enough problem in F type clamp space, and volume and weight are littleer, portable and use.

The utility model discloses a technical scheme lie in:

providing a clamp, which comprises a first clamping arm, a second clamping arm, a first pin shaft, a second pin shaft and a screw rod, wherein the first clamping arm is hinged with the second clamping arm, the first pin shaft is hinged with the first clamping arm, the second pin shaft is hinged with the second clamping arm, the screw rod is rotatably connected with the first pin shaft, the first pin shaft is fixed in the axial direction of the screw rod, the second pin shaft is in threaded connection with the screw rod, and the first pin shaft is positioned above the second pin shaft;

and rotating the screw rod to enable the second pin shaft to move along the axial direction of the screw rod, so that the first clamping arm and the second clamping arm are driven to move in a relatively opening and closing manner.

Furthermore, first centre gripping arm with second centre gripping arm is once buckling structure, first centre gripping arm with the recess side of second centre gripping arm sets up relatively.

Furthermore, the first ends of the first clamping arm and the second clamping arm are free ends, the two free ends form a jaw, the two free ends are respectively connected with an elastic clamping sleeve, and the elastic clamping sleeves are in contact with a workpiece during clamping.

Furthermore, the first pin shaft is hinged to the bent part of the first clamping arm, and the second pin shaft is hinged to the second end of the second clamping arm;

the second end of the first clamping arm is hinged to the second clamping arm, and the hinged position is located between the bent position of the second clamping arm and the second end of the second clamping arm.

Further, first centre gripping arm includes two parallel arrangement's first armplate, second centre gripping arm includes two parallel arrangement's second armplate, first round pin hub connection in between two first armplates, second round pin hub connection in between two second armplates.

Furthermore, the upper portion of the screw rod is provided with a flange portion, the first pin shaft is provided with a mounting hole, the top end of the screw rod penetrates through the mounting hole and is provided with an elastic check ring, the screw rod is in clearance fit with the mounting hole, and the flange portion and the elastic check ring are respectively attached to the lower end face and the upper end face of the first pin shaft so as to limit the axial position of the first pin shaft on the screw rod.

Furthermore, a threaded through hole is formed in the second pin shaft, and the screw rod is matched with the threaded through hole.

Further, the lower end of the screw is connected with a butterfly nut.

Furthermore, the free ends of the first clamping arm and the second clamping arm are respectively hinged with a supporting shaft, and the elastic jacket is fixed on the supporting shaft.

Furthermore, the elastic jacket is made of polyurethane materials and is of a sleeve structure.

In conclusion, the clamping and fixing can be realized by rotating the screw rod, the required operation space is small, and the volume and the weight of the clamp are small.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of a clamp according to an embodiment of the present invention;

fig. 2 is a side view of a clamp in an embodiment of the invention;

FIG. 3 is a cross-sectional view taken in the direction B-B of FIG. 2;

FIG. 4 is a cross-sectional view taken along line C-C of FIG. 2;

FIG. 5 is a cross-sectional view taken in the direction D-D of FIG. 2;

fig. 6 is a sectional view taken in the direction of a-a in fig. 2.

Detailed Description

The above and further features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

As shown in fig. 1, in the present embodiment, the clamp includes a first clamping arm, a second clamping arm, a first pin 5, a second pin 3, and a screw 4. The first clamping arm is hinged with the second clamping arm. The first pin shaft 5 is hinged with the first clamping arm, and the second pin shaft 3 is hinged with the second clamping arm. The screw rod 4 is rotatably connected with the first pin shaft 5, the first pin shaft 5 is fixed in position in the axial direction of the screw rod 4, the second pin shaft 3 is in threaded connection with the screw rod 4, and the first pin shaft 5 is located above the second pin shaft 3.

The screw rod 4 is rotated to enable the second pin shaft 3 to extend the screw rod 4 to move upwards, so that the distance between the first pin shaft 5 and the second pin shaft 3 is reduced, and the first clamping arm is hinged with the second clamping arm, the first pin shaft 5 is hinged with the first clamping arm, the second pin shaft 3 is hinged with the second clamping arm, so that the included angle between the first clamping arm and the second clamping arm is increased, and opening action is performed.

The screw rod 4 is rotated to enable the second pin shaft 3 to move downwards along with the screw rod 4, so that the distance between the first pin shaft 5 and the second pin shaft 3 is increased, and as the first clamping arm is hinged with the second clamping arm, the first pin shaft 5 is hinged with the first clamping arm, and the second pin shaft 3 is hinged with the second clamping arm, the included angle between the first clamping arm and the second clamping arm is reduced, namely, the closed clamping action is carried out.

In a specific embodiment, as shown in fig. 1, the first clamping arm and the second clamping arm are both of a one-time bending structure, and the recessed sides of the first clamping arm and the second clamping arm are arranged oppositely. The upper part of the hinge point of the first clamping arm and the second clamping arm forms a clamp mouth structure, so that the clamping is convenient and the space is saved. The first ends of the first clamping arm and the second clamping arm are free ends, the two free ends form a jaw, the two free ends are respectively connected with

elastic clamping sleeves

7 and 9, and the

elastic clamping sleeves

7 and 9 are in contact with a workpiece during clamping. The

elastic jackets

7 and 9 can protect the workpiece from being damaged during clamping.

In a more specific embodiment, as shown in fig. 1, the first gripper arm comprises two parallel

first arm plates

6, 11, the second gripper arm comprises two parallel

second arm plates

8, 10, the first pin 5 is connected between the two

first arm plates

6, 11, and the second pin 3 is connected between the two

second arm plates

8, 10. Specifically, a first pin shaft 5 is hinged at the bending part of the first clamping arm, and a second pin shaft 3 is hinged at the second end of the second clamping arm; the second end of the first clamping arm is hinged to the second clamping arm, and the hinged position is located between the bent position of the second clamping arm and the second end of the second clamping arm. The scheme in the embodiment has the advantages of compact and reasonable structure, small occupied space, high structural strength and convenience in operation.

As shown in fig. 2 and 3, the upper portion of the screw rod 4 is a polished rod section, the polished rod section is provided with a flange portion 30, the first pin 5 is provided with a mounting hole, the top end of the screw rod 4 passes through the mounting hole and is provided with an elastic collar 12, the screw rod 4 is in clearance fit with the mounting hole, and the flange portion 30 and the elastic collar 12 are respectively attached to the lower end surface and the upper end surface of the first pin 5 to limit the axial position of the first pin 5 on the screw rod 4. The first pin 5 passes through the two

first arm plates

6 and 11 and is limited by

elastic check rings

16 and 29 for shafts. The second pin shaft 3 passes through the two

second arm plates

8 and 10 and then is limited by the

elastic check rings

15 and 28 for the shafts, a threaded through hole is formed in the second pin shaft 3, and the screw rod 4 is matched with the threaded through hole. The lower end of the screw rod 4 is sequentially connected with a hexagonal nut 2 and a butterfly nut 1, and the hexagonal nut 2 is arranged above the butterfly nut 1 and used for locking the position of the butterfly nut 1.

As shown in fig. 2, 4 and 5, the free end of the first clamping arm is hinged with a first supporting shaft 18, the first supporting shaft 18 passes through the two

second arm plates

8 and 10 and is limited by

gaskets

13 and 20 and shaft

elastic check rings

13 and 25, and the elastic jacket 9 is fixed in the middle of the supporting shaft 18 and is in interference fit with the supporting shaft. The free end of the second clamping arm is hinged with a second supporting shaft 23, two ends of the second supporting shaft 23 respectively penetrate through the

gaskets

21 and 22 and the two

first arm plates

6 and 11 in sequence and then are limited by the

elastic retaining rings

17 and 24 for the shafts, and the elastic jacket 7 is fixed in the middle of the supporting shaft 23 and is in interference fit with the supporting shaft. The

elastic jackets

7 and 9 are made of polyurethane materials, and the

elastic jackets

7 and 9 are of sleeve structures.

As shown in fig. 2 and 6, both ends of the hinge shaft 26 respectively pass through the two

second arm plates

8 and 10 and the two

first arm plates

6 and 11 in sequence and are limited by the elastic check rings 27 and 14, so that the first clamping arm and the second clamping arm are hinged.

Rotatory butterfly nut 1, because butterfly nut 1 and hexagon nut 2 link firmly through the screw thread with screw rod 4, screw

rod

4 and 5 clearance fit of first round pin axle, under the promotion of the flange portion 30 of screw rod 4, first round pin axle 5 can be rotatory round self pivot, first round pin axle 5 promotes first arm board 6 in the rotatory while, 11 rotates round articulated shaft 26, first arm board 6 passes through back shaft 23 and is connected with first arm board 11, two

first arm boards

6, 11's rotary motion makes between the

elastic jacket

7, 9 be close to gradually, place the part that will press from both sides tight fixed in the elastic jacket 7, between 9, and then realize pressing from both sides tight fixed.

The foregoing is merely a preferred embodiment of the invention, which is intended to be illustrative, not limiting. The utility model discloses in all can change to some extent structure and connected mode etc. of each part all be in the utility model discloses equal transform and the improvement of going on technical scheme's the basis all should not get rid of the utility model discloses an outside the protection scope.

Claims

1. A clamp is characterized by comprising a first clamping arm, a second clamping arm, a first pin shaft, a second pin shaft and a screw rod, wherein the first clamping arm is hinged with the second clamping arm;

2. The forceps of claim 1, wherein the first grasping arm and the second grasping arm are each a one-time bend configuration, the first grasping arm being disposed opposite the concave side of the second grasping arm.

3. The forceps of claim 2, wherein the first ends of the first and second grasping arms are free ends, the free ends forming the jaws, and the free ends are each connected to a resilient collet that contacts the workpiece during grasping.

4. The pliers of claim 3,

the first pin shaft is hinged to the bent part of the first clamping arm, and the second pin shaft is hinged to the second end of the second clamping arm;

5. The pliers of claim 4, wherein the first gripping arm includes two first parallel-disposed armplates and the second gripping arm includes two second parallel-disposed armplates, the first pin being connected between the two first armplates and the second pin being connected between the two second armplates.

6. The pliers according to claim 5, wherein the upper portion of the threaded rod has a flange, the first pin has a mounting hole, the top end of the threaded rod passes through the mounting hole and is provided with a circlip, the threaded rod is in clearance fit with the mounting hole, and the flange and the circlip respectively fit with the lower end surface and the upper end surface of the first pin to limit the axial position of the first pin on the threaded rod.

7. The pliers according to claim 6, wherein the second pin has a threaded through hole, and the threaded rod is engaged with the threaded through hole.

8. The pliers of claim 7, wherein a wing nut is attached to the lower end of the threaded rod.

9. The pliers according to claim 8, wherein the free ends of the first and second gripping arms are each hinged to a support shaft, the elastic collet being fixed to the support shaft.

10. The pliers according to claim 9, wherein the resilient jacket is made of polyurethane and the resilient jacket is of a sleeve construction.