Manual quick positioning clamp

Abstract

The utility model discloses a manual quick positioning clamp which is characterized in that two sides of the rear end of a mounting seat body are rotatably provided with hinged connecting rod bodies through a first connecting shaft, and the other ends of the two hinged connecting rod bodies are connected through a second connecting shaft; the second connecting shaft is rotatably inserted into a handle part, the handle part is located above the first connecting shaft, and a handle pressing part which obliquely extends outwards is arranged at the front end of the handle part; a connecting arm body is hinged to the other side of the mounting base body through a third connecting shaft, the front end of the pressing handle part is rotationally connected with the upper portion of the tail end of the connecting arm body through a fourth connecting shaft, and a pressing head piece working downwards is arranged at the front end of the connecting arm body. The handle part is lifted upwards or pressed downwards to drive the hinged connecting rod body to rotate, the front end of the hinged connecting rod body serves as a fulcrum, the pressing handle part can drive the connecting arm body to rotate, the pressing head piece on the connecting arm body presses a workpiece, manual positioning and pressing of the workpiece are achieved, and the operation mode is very simple.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a manual quick positioning clamp. Background Art

[0002] A fixture is a device used to fix the workpiece in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process can be called a fixture.

[0003] During the processing of the mold assembly, a quick positioning fixture is needed to quickly position the mold workpiece to ensure that the subsequent processing steps proceed smoothly. For example, the prior art CN220178733U discloses a workpiece quick positioning fixture, including a base, a first clamping mechanism and a second clamping mechanism installed on the base, a placement table installed on the base, and a workpiece placed on the placement table, the first clamping mechanism includes a first drive assembly and a first sliding assembly installed on the base, a first clamping assembly installed on the first sliding assembly, the second clamping assembly includes a second drive assembly and a second sliding assembly installed on the base, and a second clamping assembly installed on the second sliding assembly, the first sliding assembly is fixedly connected to the output end of the first drive assembly, the second sliding assembly is fixedly connected to the output end of the second drive assembly, and the first clamping assembly and the second clamping assembly are arranged symmetrically on the left and right.

[0004] When the above-mentioned prior art is used, the four corners of the workpiece are clamped by the cooperation of the first clamping assembly and the second clamping assembly to realize the rapid positioning of the workpiece. However, since the four corners of the workpiece are pressed, each clamping assembly needs to be adjusted in sequence, which results in a longer operation time for the operator, and is cumbersome to use. It is not conducive to the operator's work during clamping, and it is only applicable to rectangular workpieces, and its applicability is not high. In addition, it uses components such as cylinders, resulting in high maintenance costs. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a manual quick positioning fixture, which can realize quick positioning and clamping of workpieces and has the advantages of simple structure and easy use.

[0006] To achieve the above purpose, the utility model adopts the following contents:

[0007] The utility model provides a manual quick positioning clamp, which includes a mounting seat body, hinged rod bodies rotatably arranged on both sides of the rear end of the mounting seat body through a first connecting shaft, and the other ends of the two hinged rod bodies are connected by a second connecting shaft; the second connecting shaft is rotatably inserted on a handle part, and the handle part is above the first connecting shaft, and the front end of the handle part is provided with a pressing handle part extending obliquely outward; a connecting arm body is hingedly arranged on the other side of the mounting seat body through a third connecting shaft, the front end of the pressing handle part is rotatably connected to the upper end of the connecting arm body through a fourth connecting shaft, and the front end of the connecting arm body is provided with a pressing head member working downward; wherein the position of the third connecting shaft is higher than that of the first connecting shaft.

[0008] According to a manual quick positioning clamp provided by the utility model, the mounting seat body includes a base arranged in a left-right symmetrical manner, a connecting support plate is vertically arranged on the inner surface of the base, and the front and rear ends of the connecting support plate are respectively provided with a first connecting part and a second connecting part, the position of the first connecting part is higher than the position of the second connecting part, the third connecting shaft is arranged between the two first connecting parts, and the first connecting shaft is arranged between the two second connecting parts.

[0009] Furthermore, a plurality of mounting screw holes are formed on the surface of the base to facilitate the subsequent rapid fixing and installation of the mounting base body to ensure the stability of the clamp during operation.

[0010] According to a manual quick positioning fixture provided by the utility model, the side ends of the first connecting shaft, the second connecting shaft, the third connecting shaft, and the fourth connecting shaft are all provided with blocking parts, so as to avoid the accidental situation that the first connecting shaft, the second connecting shaft, the third connecting shaft, and the fourth connecting shaft slip out from the side, and ensure the stability of the installation of the first connecting shaft, the second connecting shaft, the third connecting shaft, and the fourth connecting shaft.

[0011] According to a manual quick positioning clamp provided by the utility model, the connecting arm body includes two support arms arranged in left and right mirror images, the lower end of the support arm forms an extension portion, the extension portion is rotatably mounted on the third connecting shaft, and the upper end of the support arm is rotatably mounted on the fourth connecting shaft.

[0012] Furthermore, the front parts of the two supporting arms are jointly provided with an intermediate installation body, the intermediate installation body comprises an upper plate body and a lower plate body and a side plate for forming a fixed connection with the supporting arms, and the pressing head piece is inserted on the two plate bodies from top to bottom. The pressing head piece is not directly connected to the connecting arm body, but is fixedly installed through the intermediate installation body, thereby reducing the difficulty of installation.

[0013] Furthermore, the pressing head can be inserted on the two plates movably up and down, a clamping ring is provided on the upper part of the pressing head, a spring is provided between the clamping ring and the plate, and an elastic contact portion is provided at the bottom end of the pressing head. The spring between the clamping ring and the plate enables the pressing head to have a certain buffering effect in the process of pressing down to approach the workpiece, and the elastic contact portion can further reduce the pressure loss caused by the pressing head to the workpiece, thereby ensuring the quality of the workpiece.

[0014] Compared with the prior art, the utility model has the following technical effects: the utility model has a simple structure and a reasonable design; by pulling up or pressing down the handle portion, the hinged rod body is driven to rotate, and with the front end of the hinged rod body as a fulcrum, the pressure handle portion can drive the connecting arm body to rotate, so that the pressure head part on the connecting arm body presses the workpiece, thereby realizing manual positioning and clamping of the workpiece, and the operation method is very simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0016] Figure 1 It is a side view schematic diagram of the manual quick positioning fixture of the embodiment of the utility model;

[0017] Figure 2 It is a half-section schematic diagram of the manual quick positioning fixture of the embodiment of the utility model;

[0018] Figure 3 It is a top view schematic diagram of the manual quick positioning fixture of the embodiment of the utility model;

[0019] 1-mounting seat body, 2-hinge rod body, 3-handle part, 4-pressing handle part, 5-connecting arm body, 6-pressing head part, 7-middle mounting body; 11-base, 12-connecting support plate, 111-mounting screw hole, 101-first connecting axis, 102-third connecting axis, 103-sealing part, 121-first connecting part, 122-second connecting part, 301-second connecting axis, 302-fourth connecting axis, 51-support arm, 511-extension part, 61-clamping ring, 62-spring, 63-elastic contact part, 71-plate body, 72-side plate. DETAILED DESCRIPTION

[0020] In order to explain the present invention more clearly, the present invention is further described below in conjunction with preferred embodiments. Those skilled in the art should understand that the following specific description is illustrative rather than restrictive, and should not be used to limit the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection 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 the specific circumstances.

[0022] like Figures 1 to 3 As shown. The embodiment of the utility model proposes a manual quick positioning fixture, comprising: a mounting seat body 1, hinged rod bodies 2 are rotatably arranged on both sides of the rear end of the mounting seat body 1 through a first connecting shaft 101, and the other ends of the two hinged rod bodies 2 are connected by a second connecting shaft 301; the second connecting shaft 301 is rotatably inserted on a handle portion 3, and the handle portion 3 is above the first connecting shaft 101, and the front end of the handle portion 3 is provided with a pressing handle portion 4 extending obliquely outward, that is, the second connecting shaft 301 is inserted at the connection between the handle portion 3 and the pressing handle portion 4; the other side of the mounting seat body 1 is hingedly provided with a connecting arm body 5 through a third connecting shaft 102, and the front end of the pressing handle portion 4 is rotatably connected to the upper end of the connecting arm body 5 through a fourth connecting shaft 302, and the front end of the connecting arm body 5 is provided with a downward working pressing head 6; wherein, the position of the third connecting shaft 102 is higher than that of the first connecting shaft 101.

[0023] In actual work:

[0024] The first way of using: the operator presses the handle portion 3 downward, and the hinged rod body 2 rotates outward with the lower part of the hinged rod body 2 as the fulcrum. At the same time, the pressing handle portion 4 also rotates outward. During the rotation of the pressing handle portion 4, it will pull the connecting arm body 5 to rotate outward as well. The connecting arm body 5 rotates with the portion where the mounting seat body 1 and the connecting arm body 5 are connected as the fulcrum. At this time, the connecting arm body 5 drives the pressing head piece 6 to move upward, thereby realizing the separation of the pressing head piece and the workpiece.

[0025] The second way of using: the operator pulls up the handle portion 3, and uses the lower part of the hinged rod body 2 as the fulcrum. The hinged rod body 2 rotates inward, and the pressing handle portion 4 also rotates inward. During the rotation of the pressing handle portion 4, it will force the connecting arm body 5 to rotate inward as well. The connecting arm body 5 rotates with the portion where the mounting seat body 1 and the connecting arm body 5 are connected as the fulcrum. At this time, the connecting arm body 5 drives the pressing head piece 6 to move downward, thereby realizing the contact between the pressing head piece and the workpiece and completing the positioning and clamping.

[0026] In this embodiment, the mounting seat body 1 includes a base 11 which is symmetrically arranged on the left and right sides, and a connecting support plate 12 is vertically arranged on the inner surface of the base 11. The front and rear ends of the connecting support plate 12 are respectively provided with a first connecting portion 121 and a second connecting portion 122. The position of the first connecting portion 121 is higher than the position of the second connecting portion 122. The third connecting shaft 102 is arranged between the two first connecting portions 121, and the first connecting shaft 101 is arranged between the two second connecting portions 122.

[0027] A plurality of mounting screw holes 111 are formed on the surface of the base 11. This facilitates the subsequent fast fixing and installation of the mounting base to ensure the stability of the clamp during operation.

[0028] In this embodiment, the side ends of the first connecting shaft 101, the second connecting shaft 301, the third connecting shaft 102, and the fourth connecting shaft 302 are all provided with blocking parts 103. The blocking parts at both side ends can prevent the first connecting shaft, the second connecting shaft, the third connecting shaft, and the fourth connecting shaft from slipping out from the side, thereby ensuring the stability of the installation of the first connecting shaft, the second connecting shaft, the third connecting shaft, and the fourth connecting shaft.

[0029] In this embodiment, the connecting arm body 5 includes two support arms 51 arranged in a left-right mirror image, and an extension portion 511 is formed at the lower end of the support arm 51. The extension portion 511 is rotatably mounted on the third connecting shaft 102, and the upper end of the support arm 51 is rotatably mounted on the fourth connecting shaft 302.

[0030] The front of the two arms 51 is provided with an intermediate installation body 7, which includes an upper plate body 71 and a lower plate body 71 and a side plate 72 for forming a fixed connection with the arms 51. The pressing head 6 is inserted from top to bottom on the two plates 71. The pressing head is not directly connected to the connecting arm body, but is fixedly installed through the intermediate installation body, thereby reducing the difficulty of installation.

[0031] The pressing head 6 can be inserted on the two plates 71 movably up and down, a clamp ring 61 is arranged on the upper part of the pressing head 6, a spring 62 is arranged between the clamp ring 61 and the upper plate 71, and an elastic contact part 63 is arranged at the bottom end of the pressing head 6. The spring between the clamp ring and the plate body enables the pressing head to have a certain buffering effect in the process of pressing down to approach the workpiece, and the elastic contact part can further reduce the pressure loss caused by the pressing head to the surface of the workpiece, thereby ensuring the quality of the workpiece.

[0032] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A manual quick positioning fixture, characterized in that: The invention comprises a mounting seat body, hinged rod bodies are rotatably arranged on both sides of the rear end of the mounting seat body through a first connecting shaft, and the other ends of the two hinged rod bodies are connected through a second connecting shaft; the second connecting shaft is rotatably inserted on a handle part, and the handle part is located above the first connecting shaft, and the front end of the handle part is provided with a pressing handle part extending obliquely outward; a connecting arm body is hingedly arranged on the other side of the mounting seat body through a third connecting shaft, and the front end of the pressing handle part is rotatably connected to the upper end of the connecting arm body through a fourth connecting shaft, and a pressing head member working downward is provided at the front end of the connecting arm body; wherein the position of the third connecting shaft is higher than that of the first connecting shaft; The connecting arm body comprises two supporting arms arranged in a left-right mirror image, the lower part of the end of the supporting arm forms an extension part, the extension part is rotatably sleeved on the third connecting shaft, and the upper part of the end of the supporting arm is rotatably sleeved on the fourth connecting shaft; The front parts of the two supporting arms are jointly provided with an intermediate installation body, the intermediate installation body comprises an upper plate body and a lower plate body and a side plate for forming a fixed connection with the supporting arms, and the pressing head member is inserted on the two plate bodies from top to bottom; The pressing head piece can be inserted on the two plate bodies movably up and down, a clamping ring is arranged on the upper part of the pressing head piece, a spring is arranged between the clamping ring and the plate body, and an elastic contact part is arranged at the bottom end of the pressing head piece.

2. A manual quick positioning fixture according to claim 1, characterized in that: The mounting seat body includes a base arranged in a left-right symmetrical manner, a connecting support plate is vertically arranged on the inner surface of the base, a first connecting part and a second connecting part are respectively arranged at the front and rear ends of the connecting support plate, the position of the first connecting part is higher than the position of the second connecting part, the third connecting shaft is arranged between the two first connecting parts, and the first connecting shaft is arranged between the two second connecting parts.

3. A manual quick positioning fixture according to claim 2, characterized in that: A plurality of mounting screw holes are formed on the surface of the base.

4. A manual quick positioning fixture according to claim 1, characterized in that: The side ends of the first connecting shaft, the second connecting shaft, the third connecting shaft and the fourth connecting shaft are all provided with blocking parts.

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