Clamp

Abstract

The utility model discloses a clamp which can adjust the distance between a fixed end and a clamping end and is wide in application range. The clamp comprises a clamping arm assembly which comprises a first clamping arm, a second clamping arm and an adjusting plate, wherein the adjusting plate is detachably connected with the first clamping arm and the second clamping arm and can adjust the distance between the first clamping arm and the second clamping arm; the telescopic adjusting assembly comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod which are sequentially connected into a ring shape, the joints of the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are rotationally connected, and a fifth connecting rod and a sixth connecting rod which are detachably connected with the adjusting plate are fixed to the connecting ends of the third connecting rod and the fourth connecting rod correspondingly; mounting structures are arranged at the connecting ends of the first connecting rod and the second connecting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to an adjustable clamp. Background Art

[0002] A fixture is a device used to fix the object to be processed in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. The application field of fixtures is wide.

[0003] The clamp generally has two clamp arms, and the relevant workpiece can be clamped and fixed by controlling the two clamp arms. For example, the application number is CN201820515772.2, "A lightweight and portable metal clamp", and the application number is CN202110114880.5, "A clamp system and method for controlling welding of a first substrate to a second substrate".

[0004] The existing clamp has the following problems: during operation, once the position of one end of the clamp is fixed, the distance between the clamping end and the fixed end is fixed and cannot be adjusted, that is, it cannot adapt to different clamping requirements at the same time. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a clamp which can adjust the distance between the fixed end and the clamping end and has a wide range of applications.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] The utility model provides a clamp, comprising:

[0008] A clamp arm assembly, the clamp arm assembly comprising a first clamp arm, a second clamp arm and an adjustment plate detachably connected to the first clamp arm and the second clamp arm and capable of adjusting the distance between the first clamp arm and the second clamp arm;

[0009] A telescopic adjustment component, which includes a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod which are connected in sequence into a ring shape and are rotatably connected at the connection ends. The connecting ends of the third connecting rod and the fourth connecting rod are respectively fixed with a fifth connecting rod and a sixth connecting rod which are detachably connected to the adjustment plate. The connecting ends of the first connecting rod and the second connecting rod are provided with mounting structures.

[0010] The utility model has the following advantages:

[0011] The distance between the two clamp arms of the clamp of this scheme is adjustable, and the distance between the fixed end and the clamping end is also adjustable, so the clamp has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] 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, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a structural schematic diagram of the clamp of the utility model;

[0014] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0015] Figure 3 It is a structural schematic diagram of the adjustment plate;

[0016] Figure 4 It is a structural schematic diagram of a limiting member;

[0017] Figure 5 for Figure 4 AA section view. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0022] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do 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 therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The utility model discloses a clamp, which comprises a clamp arm component and a telescopic adjustment component. The distance between a fixed end and a clamping end can be adjusted by adjusting the telescopic adjustment component.

[0025] Specifically, Figure 1 As shown, the clamp arm assembly includes a first clamp arm, a second clamp arm and an adjustment plate which is detachably connected to the first clamp arm and the second clamp arm and can adjust the distance between the first clamp arm and the second clamp arm. By adjusting the installation positions of the first clamp arm, the second clamp arm and the adjustment plate, the distance between the two clamp arms can be adjusted, which is suitable for clamping objects of different widths.

[0026] The telescopic adjustment assembly includes a first connecting rod 11, a second connecting rod 12, a third connecting rod 13 and a fourth connecting rod 14 which are connected in sequence into a ring shape and are rotatably connected at the connection points. The connecting ends of the third connecting rod 13 and the fourth connecting rod 14 are respectively fixed with a fifth connecting rod 15 and a sixth connecting rod 16 which are detachably connected to the adjustment plate. The connecting ends of the first connecting rod 11 and the second connecting rod 12 are provided with a mounting structure 17.

[0027] The telescopic adjustment assembly adopts 6 connecting rods, among which the first connecting rod 11, the second connecting rod 12, the third connecting rod 13 and the fourth connecting rod 14 are in a square ring shape. By adjusting the square structure, the distance between the two diagonals can be adjusted, thereby realizing the adjustment of the distance between the fixed end and the clamping end.

[0028] Specifically, the first connecting rod 11, the second connecting rod 12, the third connecting rod 13 and the fourth connecting rod 14 can be fixed at two connections by bolts. The third connecting rod 13 and the fifth connecting rod 15 are an integrated structure, and the fourth connecting rod 14 and the sixth connecting rod 16 are an integrated structure.

[0029] In order to facilitate the adjustment of the distance between the two clamp arms, Figure 3 As shown, the adjustment plate includes a first adjustment plate 21 and a second adjustment plate 22. The first adjustment plate 21 is provided with a first strip hole 211 for adjusting the installation position of the first clamp arm, a second strip hole 212 for adjusting the installation position of the fifth connecting rod 15, a plurality of first fixing holes 213 for fixing the second clamp arm and a plurality of second fixing holes 214 for fixing the sixth connecting rod 16 and a plurality of third fixing holes 221 for fixing the first clamp arm and a plurality of fourth fixing holes 222 for fixing the fifth connecting rod 15 and a third strip hole 223 and a fourth strip hole 224, respectively, corresponding to the first fixing hole 213 and the second fixing hole 214. The second adjustment plate 22 is provided with a plurality of third fixing holes 221 for fixing the first clamp arm and a plurality of fourth fixing holes 222 for fixing the fifth connecting rod 15 and a plurality of third fixing holes 223 and a plurality of fourth fixing holes 224, respectively, corresponding to the first fixing hole 213 and the second fixing hole 214, respectively.

[0030] By adopting the above structure, the distance between the two clamping arms can be adjusted by selecting the installation position of the fixing hole in the strip hole to match the width and diameter of the corresponding object.

[0031] In order to improve the stability of the installation of the clamping arm and the adjustment plate, two first strip holes 211 are provided, and two rows of first fixing holes 213 are provided. Of course, only one first strip hole 211 can be provided, and only one row of first fixing holes 213 can be provided.

[0032] In order to improve the stability of the fixation, there are two first adjustment plates 21 , which are respectively arranged on both sides of the second adjustment plate 22 .

[0033] The first clamp arm and the second clamp arm can be implemented in a variety of structures. In order to improve the installation stability and facilitate adjustment, the first clamp arm and the second clamp arm each include a connecting member 31 and a clamping plate 32 fixed on the connecting member. The connecting member 31 has a mounting hole for mounting the adjustment plate. The mounting hole is provided with a screw hole on the side wall of the mounting hole, and the mounting with the adjustment plate is achieved by using bolts.

[0034] In order to improve the safety of the clamp in use and avoid the angle between the first connecting rod 11 and the fourth connecting rod 14 being too small to cause injury to people during adjustment, refer to Figure 2A limiting rod 41 is fixed on the first connecting rod 11, and a limiting member 42 is provided on the fourth connecting rod 14 to cooperate with the limiting rod 41 to achieve the contraction angle limitation of the first connecting rod 11 and the fourth connecting rod 14.

[0035] The first connecting rod 11, the second connecting rod 12, the third connecting rod 13 and the fourth connecting rod 14 are fixed with bolts. However, when used to clamp certain heavier objects, they are prone to deformation, that is, the distance between the fixed end and the clamping end changes, and there is an instability factor. In this regard, on the basis of the above-mentioned limit rod 41 and limit member 42 structure, further, a locking groove 411 is provided at one end of the limit rod 41, and the limit member 42 includes a shell 422 provided with a locking hole 421, a locking tongue 423 with one end placed in the locking hole 421, and a control part that controls the radial movement of the locking tongue 423 along the locking hole 421 to cooperate with the locking groove 411 to realize the locking and unlocking control of the limit rod 41.

[0036] By adopting the above structure, the limiting rod 41 is locked by the control unit, so that the stability of the square formed by the first connecting rod 11, the second connecting rod 12, the third connecting rod 13 and the fourth connecting rod 14 can be ensured.

[0037] There are many ways to implement the mounting structure 17. You can use a corresponding structure according to the mounting method. For example, Figure 1 Lifting ring shown.

[0038] Among them, there are many ways to implement the control unit. For ease of operation, refer to Figure 4 , 5 A first limiting ring 4231 is provided on the locking tongue 423; the control unit includes an adjusting cylinder 431 arranged in the shell and having a second limiting ring 432 on the inner wall, a spring 433 sleeved outside the locking tongue 423 and placed between the first limiting ring 4231 and the second limiting ring 432, and the first limiting ring 4231 is placed between the second limiting ring 432 and the locking hole 421.

[0039] The two ends of the lock tongue 423 are respectively placed outside the two ends of the adjustment tube 431. When unlocked, under the action of the spring, the first limiting ring 4231 is pushed to drive the lock tongue to move toward one end of the locking hole 421. The limiting rod 41 moves down into the locking hole 421, pushing the lock tongue to move away from the locking hole 421, and the spring is compressed; after the first limiting ring 4231 corresponds to the lock tongue, the spring releases pressure, pushing the lock tongue to move toward one end of the locking hole 421 and clamping the first limiting ring 4231 to achieve locking. When unlocking, the lock tongue is manually pulled to one end of the housing to release the lock tongue from locking the limiting rod 41.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamp, characterized in that: include: A clamp arm assembly, the clamp arm assembly comprising a first clamp arm, a second clamp arm and an adjustment plate detachably connected to the first clamp arm and the second clamp arm and capable of adjusting the distance between the first clamp arm and the second clamp arm; A telescopic adjustment component, the telescopic adjustment component comprises a first connecting rod (11), a second connecting rod (12), a third connecting rod (13) and a fourth connecting rod (14) which are connected in sequence to form a ring and are rotatably connected at the connection points, a fifth connecting rod (15) and a sixth connecting rod (16) which are detachably connected to the adjustment plate are respectively fixed to the connection ends of the third connecting rod (13) and the fourth connecting rod (14), and a mounting structure (17) is provided at the connection ends of the first connecting rod (11) and the second connecting rod (12).

2. A clamp according to claim 1, characterized in that: The adjustment plate comprises: a first adjustment plate (21), the first adjustment plate (21) being provided with a first strip hole (211) for adjusting the installation position of the first clamp arm, a second strip hole (212) for adjusting the installation position of the fifth connecting rod (15), a plurality of first fixing holes (213) for fixing the second clamp arm and arranged on the same straight line as the first strip hole (211), and a plurality of second fixing holes (214) for fixing the sixth connecting rod (16) and arranged on the same straight line as the second strip hole (212); A second adjustment plate (22), wherein the second adjustment plate (22) is provided with a plurality of third fixing holes (221) for fixing the first clamping arm at positions corresponding to the first strip-shaped holes (211), a plurality of fourth fixing holes (222) for fixing the fifth connecting rod (15) are provided at positions corresponding to the second strip-shaped holes (212), a third strip-shaped hole (223) is provided at positions corresponding to the first fixing holes (213), and a fourth strip-shaped hole (224) is provided at positions corresponding to the second fixing holes (214).

3. A clamp according to claim 2, characterized in that: The first strip-shaped holes (211) are provided with two strips. The first fixing holes (213) are arranged in two rows.

4. A clamp according to claim 2, characterized in that: There are two first adjustment plates (21) which are respectively arranged on both sides of the second adjustment plate (22).

5. A clamp according to claim 1, characterized in that: The first clamp arm and the second clamp arm each comprise a connecting member (31) and a clamping plate (32) fixed on the connecting member. The connecting member (31) has a mounting hole for mounting the adjusting plate.

6. A clamp according to claim 1, characterized in that: A limiting rod (41) is fixed on the first connecting rod (11), and a limiting member (42) is provided on the fourth connecting rod (14) for cooperating with the limiting rod (41) to limit the contraction angle of the first connecting rod (11) and the fourth connecting rod (14).

7. A clamp according to claim 6, characterized in that: One end of the limiting rod (41) is provided with a locking groove (411). The limiting member (42) comprises a housing (422) provided with a locking hole (421), a locking tongue (423) with one end disposed in the locking hole (421), and a control portion for controlling the locking tongue (423) to move radially along the locking hole (421) so as to cooperate with the locking groove (411) to realize locking and unlocking control of the limiting rod (41).

8. A clamp according to claim 7, characterized in that: A first limiting ring (4231) is provided on the locking tongue (423); The control unit comprises an adjustment cylinder (431) arranged in the housing and having a second limiting ring (432) on the inner wall thereof, a spring (433) sleeved outside the locking tongue (423) and arranged between the first limiting ring (4231) and the second limiting ring (432), and the first limiting ring (4231) is arranged between the second limiting ring (432) and the locking hole (421).

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