Adjustable bar clamping and positioning fixture

Abstract

The utility model relates to the technical field of bar machining, in particular to an adjustable bar clamping and positioning fixture which comprises a clamping and fixing base, a clamping groove used for preliminarily limiting a bar is formed in the center of the clamping and fixing base, a plurality of sets of clamping arc plates are arranged on the side edge of the clamping groove in a circumferential array mode, and the clamping arc plates elastically rotate on the clamping and fixing base. The multiple sets of clamping arc plates are arranged on the clamping and fixing base, and the clamping arc plates elastically slide on the clamping and fixing base, so that when a bar is placed between the clamping arc plates, the bar is fixed through resilience force of the clamping arc plates, in the application, the clamping and fixing base only needs to be installed at the output end of the power machine box, and the clamping and fixing base is installed at the output end of the power machine box. The power equipment is used for driving the clamping and fixing base to rotate, so that the problem of complex rotation of the bar in the rotating machining process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bar processing, in particular to an adjustable bar clamping and positioning fixture. Background Art

[0002] In the field of mechanical processing, rods are often processed. By shearing, grinding and other processing, rods that meet production needs are obtained. When processing rods, different clamps are needed to clamp and fix the rods.

[0003] For example, in the patent document with application number 202320033891.5, a rod clamping and positioning fixture is disclosed, and specifically a fixture that can clamp and position rods of different sizes is disclosed to ensure the stability of the rods.

[0004] In the above technical solution, the rods are clamped by utilizing symmetrically arranged anti-skid plate assemblies. At this time, the distance between the anti-skid plate assemblies needs to be adjusted individually, so the power mechanism of the clamp will occupy a larger space. When processing the rods, especially when the rods need to be rotated during processing, the power mechanism needs to be packaged in a box so that it can be installed at the output end of the rotating chassis, and there is a deviation in the positioning of the center of the rod. Utility Model Content

[0005] The technical problem solved by the utility model is to solve the problem of complex rotation caused by rotating the rod in the prior art.

[0006] The utility model can be realized through the following technical scheme: an adjustable rod clamping and positioning fixture includes a clamping and fixing base, a clamping groove for preliminary limiting the rod is opened at the center position of the clamping and fixing base, a plurality of groups of clamping arc plates are arranged in a circular array on the side of the clamping groove, and the clamping arc plates rotate elastically on the clamping and fixing base.

[0007] A further technical improvement of the utility model is that a limiting sleeve for controlling the angle of the clamping arc plate is slidably arranged on the clamping fixed base, and the limiting sleeve is located on the outer side of the clamping arc plate.

[0008] A further technical improvement of the utility model is that a limiting connecting rod is fixed on the side of the limiting sleeve, the limiting connecting rod is fixedly mounted on the transverse push plate, and the transverse push plate is located at one end of the clamping fixed base away from the clamping arc plate.

[0009] A further technical improvement of the utility model is that the transverse push plate is fixedly installed at the output end of the cylinder, and the cylinder is installed at the output end of the power equipment.

[0010] A further technical improvement of the utility model is that a clamping rotating shaft is fixed to one end of the clamping fixing base away from the clamping arc plate, and the clamping rotating shaft is installed at the output end of the power equipment.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. In the present application, a plurality of groups of clamping arc plates are arranged on the clamping and fixing base, and the clamping arc plates slide elastically on the clamping and fixing base. Therefore, when the rod is placed between the clamping arc plates, the rod is fixed by utilizing the resilience of the clamping arc plates. In the present application, it is only necessary to install the clamping and fixing base at the output end of the power chassis, and utilize the power equipment to drive the clamping and fixing base to rotate, so as to solve the complex rotation problem of the rod during the rotation processing.

[0013] 2. The present application places a clamping arc plate on the side of the clamping groove. When in use, the clamping arc plate will push the rod to the center position of the clamping groove, so that the center position of the rod can be stably obtained, thereby ensuring the processing accuracy of the rod.

[0014] 3. The present application also uses a limiting sleeve. When in use, the limiting sleeve is moved relative to the clamping arc plate so that the limiting sleeve can control the angle of the clamping arc plate, thereby further stabilizing the position of the rod by applying external force, thereby ensuring the stability of the rod during rotation processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0017] Figure 2 It is a schematic diagram of the relative positions of the clamping assembly and the limiting assembly of the utility model;

[0018] Figure 3 This is a schematic diagram of the position of the clamping shaft of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0020] Figure 5 This is a schematic diagram of the position of the limit turntable of the utility model.

[0021] In the figure: 1. limit assembly; 11. lateral push plate; 12. limit connecting rod; 13. limit sleeve; 14. limit turntable; 15. cylinder; 16. output base; 2. clamping assembly; 21. clamping shaft; 22. end base; 23. clamping fixed base; 24. clamping groove; 25. clamping arc plate. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0023] See also Figure 1-5 As shown, the adjustable rod clamping and positioning fixture includes symmetrically arranged clamping mechanisms, wherein the symmetrically arranged clamping mechanisms are respectively used to clamp the two ends of the rod to limit the position of the rod to ensure the stability of the rod during processing.

[0024] Specifically, the clamping mechanism includes a clamping component 2 and a limiting component 1. The clamping component 2 is used to achieve preliminary clamping of the rod, and then the limiting component 1 is activated to ensure further limiting function of the rod, so that the position of the rod is relatively stable during processing, reducing the influence of processing vibration on the position deviation caused by rod processing.

[0025] Therefore, in the present application, the clamping assembly 2 includes a clamping fixed base 23, a clamping groove 24 for preliminarily limiting the rod is opened in the middle position of the clamping fixed base 23, and a plurality of groups of clamping arc plates 25 are arranged on the side circumference of the clamping groove 24. The clamping arc plates 25 elastically rotate on the clamping fixed base 23, and the spacing between the clamping arc plates 25 on the side close to the clamping groove 24 is smaller, and the spacing between the clamping arc plates 25 on the end away from the clamping groove 24 is larger. When the rod is clamped, the rod is placed between the clamping arc plates 25 until the rod is squeezed on the clamping arc plates 25. At this time, the rod is preliminarily limited by the resilience of the deformation generated by the clamping arc plates 25, and at the same time, the symmetrically arranged clamping mechanisms are used to apply opposite clamping forces to the rod to achieve the limitation of the rod.

[0026] The limiting assembly 1 includes a clamping limiting sleeve 13, wherein the limiting sleeve 13 is installed on the limiting connecting rod 12, and the limiting connecting rod 12 is movable, and the moving direction of the limiting connecting rod 12 is parallel to the length direction of the rod, and the limiting sleeve 13 is located at one end of the clamping arc plate 25 close to the clamping fixed base 23. At this time, the limiting connecting rod 12 is used to push the limiting sleeve 13 to move toward the end of the clamping arc plate 25 away from the clamping fixed base 23 until it moves to a point where it cannot move. At this time, the clamping arc plate 25 is contracted under the action of the limiting sleeve 13 to apply a clamping force to the rod located inside the clamping arc plate 25, so that the rod can be further clamped and limited to avoid the position movement of the rod during the processing, thereby ensuring the stability of the rod processing and the accuracy of the rod processing. In the present application, the rod sizes that can be used for the widest and narrowest distances between the clamping arc plates 25 are different, so that rods of different sizes can be clamped and limited.

[0027] The clamping fixed base 23 is fixedly mounted on the end base 22, and the end base 22 is used to fix the clamping shaft 21. At this time, the clamping shaft 21 is installed on the output end of the power box through the limit turntable 14, wherein the power box drives the limit turntable 14 to rotate to realize the rotation of the clamping shaft 21, thereby realizing the rotation of the rod. In the present application, the clamping shaft 21 and the limit turntable 14 are fixedly connected, which is convenient for the rotation processing of the rod, and in the present application, the rod can be directly clamped, saving the power space required for clamping the rod, which is convenient for rotating the rod.

[0028] The limiting connecting rod 12 is fixedly mounted on the transverse push plate 11, and multiple groups of limiting connecting rods 12 are provided. An output base 16 is fixedly mounted on the side of the transverse push plate 11, wherein the output base 16 is fixedly mounted on the output end of the cylinder 15, and the fixed end of the cylinder 15 is mounted on the limiting turntable 14. The lateral position of the output base 16 is controlled by starting the cylinder 15, thereby controlling the position of the limiting connecting rod 12, so that the limiting sleeve 13 can move in the direction of the widest distance of the clamping arc plate 25, thereby being able to control the opening angle of the clamping arc plate 25, so as to facilitate clamping and fixing the rod, and ensure the stability of the rod during processing.

[0029] When the utility model is in use, the rod is first placed on the clamping assembly 2, and the rod enters the interior of the clamping assembly 2. When the size of the rod is larger than the clamping groove 24, the rod can be squeezed on the side of the clamping arc plate 25, and the clamping arc plates 25 are expanded to a certain extent by the clamping force, and the rod is initially clamped under the action of the rebound force, and then the limit assembly 1 is started, that is, the lateral position of the output base 16 is controlled by the start of the cylinder 15, so as to control the position of the limit connecting rod 12, so that the limit sleeve 13 can move in the direction of the widest distance of the clamping arc plate 25, so that the opening angle of the clamping arc plate 25 can be adjusted. The rod is controlled so that the clamping arc plate 25 can be pressed tightly against the rod, thereby further realizing the position limiting function of the rod; then the lateral position of the clamping mechanism away from the end is controlled, and the other end of the rod is clamped and fixed by another set of clamping mechanisms, thereby realizing full fixation of the rod; when the size of the rod is smaller than the clamping groove 24, the rod can only directly enter the clamping groove 24, and the lateral clamping force of the rod is exerted on the rod by another set of clamping mechanisms to realize the position limitation of the rod; when the rod is rotated, the power box is used to drive the rotation of the clamping shaft 21 to realize the rotation control of the rod, so that it can adapt to various processing of the rod.

[0030] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. Adjustable bar clamping and positioning fixture, characterized by: The invention comprises a clamping and fixing base (23), wherein a clamping groove (24) for initially limiting the position of the rod is provided at the center of the clamping and fixing base (23), and a plurality of groups of clamping arc plates (25) are arranged in a circular array on the side of the clamping groove (24), and the clamping arc plates (25) are elastically rotatable on the clamping and fixing base (23).

2. The adjustable rod clamping and positioning fixture according to claim 1 is characterized in that: A limiting sleeve (13) for controlling the angle of the clamping arc plate (25) is slidably arranged on the clamping fixed base (23), and the limiting sleeve (13) is located on the outer side of the clamping arc plate (25).

3. The adjustable rod clamping and positioning fixture according to claim 2 is characterized in that: The limiting sleeve (13) has a side edge fixed with a limiting connecting rod (12), the limiting connecting rod (12) is fixedly mounted on a transverse push plate (11), and the transverse push plate (11) is located at one end of the clamping fixed base (23) away from the clamping arc plate (25).

4. The adjustable rod clamping and positioning fixture according to claim 3 is characterized in that: The transverse push plate (11) is fixedly mounted on the output end of the cylinder (15), and the cylinder (15) is mounted on the output end of the power equipment.

5. The adjustable rod clamping and positioning fixture according to claim 1, characterized in that: A clamping rotating shaft (21) is fixed to one end of the clamping fixing base (23) away from the clamping arc plate (25), and the clamping rotating shaft (21) is installed at the output end of the power equipment.

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