CN220533368U

CN220533368U - Clamping and positioning mechanism

Info

Publication number: CN220533368U
Application number: CN202321949918.1U
Authority: CN
Inventors: 陈振东; 请求不公布姓名
Original assignee: TJK Machinery Tianjin Co Ltd
Current assignee: TJK Machinery Tianjin Co Ltd
Priority date: 2023-07-24
Filing date: 2023-07-24
Publication date: 2024-02-27
Anticipated expiration: 2033-07-24

Abstract

The utility model relates to the technical field of clamps, in particular to a clamping and positioning mechanism, which comprises a frame, a first clamping assembly and a second clamping assembly, wherein the first clamping assembly comprises an upper pressing roller, a lower pressing roller and a first driving piece; the second clamping assembly comprises a left compression roller and a right compression roller, the left compression roller and the right compression roller can rotate by taking the left compression roller and the right compression roller as shafts, and the left compression roller and the right compression roller can clamp a workpiece left and right. The clamping and positioning mechanism can rapidly clamp the workpiece, and can be in rolling contact with the workpiece when clamping the workpiece, so that damage to the workpiece can be reduced.

Description

Clamping and positioning mechanism

Technical Field

The utility model relates to the technical field of clamps, in particular to a clamping and positioning mechanism.

Background

In the shaped steel course of working, often need carry out end to end splice welding to form final required length or shape, to avoid dislocation between the shaped steel during the welding, need press from both sides tight location to the shaped steel, generally adopt the mode of manual adjustment threaded rod locking to realize at present, not only complex operation, clamp inefficiency, damage shaped steel surface moreover easily, influence shaped steel quality.

Disclosure of Invention

The utility model aims to provide a clamping and positioning mechanism which can clamp a workpiece rapidly and does not damage the surface of the workpiece.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the clamping and positioning mechanism comprises a frame, a first clamping assembly and a second clamping assembly, wherein the first clamping assembly comprises an upper pressing roller, a lower pressing roller and a first driving piece, the upper pressing roller is arranged on an upper pressing adjusting plate arranged at the output end of the first driving piece, the lower pressing roller is arranged on the frame, the upper pressing roller and the lower pressing roller can rotate by taking the upper pressing roller and the lower pressing roller as shafts, and the first driving piece is configured to drive the upper pressing roller to move up and down to be close to or far away from the lower pressing roller; the second clamping assembly comprises a left pressing roller and a right pressing roller, the left pressing roller and the right pressing roller can rotate by taking the left pressing roller and the right pressing roller as shafts, and the left pressing roller and the right pressing roller can clamp a workpiece left and right.

Optionally, the relative both ends bottom of last pressure regulating plate is fixed with respectively and compresses tightly the slider, go up the axial both ends of pressure roller respectively with two compress tightly the slider and rotate and be connected, compress tightly the lateral surface of slider with frame slip butt.

Optionally, a wear-resistant plate is mounted on the outer side surface of the pressing sliding block.

Optionally, the second clamping assembly includes a second driving member, and an output end of the second driving member is connected with the left pinch roller and/or the right pinch roller, so that the left pinch roller and the right pinch roller move close to or far away from each other.

Optionally, one of the left pinch roller or the right pinch roller is connected with the output end of the second driving piece, and the other pinch roller is adjustably mounted on the frame.

Optionally, the device further comprises a support frame, the left compression roller or the right compression roller with the position of the frame being adjustable is rotatably arranged on the support frame, one of the support frame and the frame is provided with a strip-shaped hole, the other one of the support frame and the frame is provided with a round hole, and the support frame and the frame are fixed through a fastener penetrating through the strip-shaped hole and the round hole.

Optionally, the device further comprises a screw rod, the screw rod is horizontally arranged and in threaded connection with the rack, and one end of the screw rod is in butt joint with the supporting frame.

Optionally, the first clamping assembly and the second clamping assembly are not in the same vertical plane.

Optionally, the first clamping assembly further includes a first connecting rod and a second connecting rod, the number of the first connecting rod and the number of the second connecting rod are two, the first connecting rod is hinged to the frame, the first ends of the first connecting rod are respectively hinged to the fixed end and the output end of the first driving piece, the second ends of the first connecting rod are respectively connected to the first ends of the second connecting rod, the second ends of the second connecting rod are both hinged to the upper pressing adjusting plate, and the hinge points of the second connecting rod and the upper pressing adjusting plate are distributed at intervals along the axial direction of the upper pressing roller.

Optionally, the right pinch roller is formed by connecting a plurality of bearings with the same specification in series.

The beneficial effects of the utility model are as follows: the clamping and positioning mechanism drives the lower compression roller to approach the upper compression roller through the first driving piece, so that the workpiece is clamped quickly, the left compression roller and the right compression roller can clamp the workpiece left and right, the whole clamping process is simple and quick, the upper compression roller, the lower compression roller, the left compression roller and the right compression roller are in rolling contact with the workpiece, the workpiece is clamped, the damage to the surface of the workpiece is reduced, the friction force of the workpiece during movement is reduced, and the workpiece is convenient to move.

Drawings

FIG. 1 is a front view of a clamp positioning mechanism in an embodiment of the utility model;

FIG. 2 is a side view of a clamp positioning mechanism in an embodiment of the utility model;

fig. 3 is a rear view of the clamp positioning mechanism in an embodiment of the utility model.

In the figure, 10, a rack; 11. a support; 12. a mounting frame;

20. a first clamping assembly; 21. an upper pinch roller; 22. a lower pinch roller; 23. a first driving member; 24. an upper compression adjusting plate; 25. a pressing slide block; 26. a lower pressing adjusting plate; 27. a wear plate; 28. a first link; 29. a second link;

30. a second clamping assembly; 31. a left pinch roller; 32. a right pinch roller; 33. a second driving member; 34. a screw; 35. a support frame; 36. a bearing seat; 37. and fixing the pin shaft.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of operation, and are not intended to indicate or imply that the apparatus or elements 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 utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1-3, the present embodiment provides a clamping and positioning mechanism for clamping a workpiece, including, but not limited to, a section steel, etc. that is required to avoid damage to the surface during clamping. The clamping and positioning mechanism comprises a frame 10, a first clamping assembly 20 and a second clamping assembly 30, wherein the first clamping assembly 20 and the second clamping assembly 30 are both arranged on the frame 10, the first clamping assembly 20 is used for clamping a workpiece up and down to limit the workpiece up and down, the clamping and positioning mechanism comprises an upper pressing roller 21 and a lower pressing roller 22, the upper pressing roller 21 and the lower pressing roller 22 can rotate by taking the upper pressing roller 21 and the lower pressing roller 22 as shafts, the output end of a first driving piece 23 is connected with the upper pressing roller 21, and the upper pressing roller 21 can move close to or far from the lower pressing roller 22 to clamp the workpiece up and down under the action of the first driving piece 23; the second clamping assembly 30 is used for clamping a workpiece left and right to limit the workpiece left and right, and comprises a left compression roller 31 and a right compression roller 32, the left compression roller 31 and the right compression roller 32 can also rotate by taking the left compression roller 31 and the right compression roller 32 as shafts, and the left compression roller 31 and the right compression roller 32 can clamp the workpiece left and right.

The clamping and positioning mechanism in the embodiment utilizes the first driving piece to drive the upper pressing roller 21 to move towards the lower pressing roller 22, and the left pressing roller 31 and the right pressing roller 32 clamp the workpiece, so that the pressing rollers are in rolling connection with the workpiece, the possibility of damage of the workpiece in the clamped process is reduced, meanwhile, the rolling arrangement of the pressing rollers is convenient for transportation work after the workpiece is machined, friction force in the moving process of the workpiece can be reduced, the moving efficiency is improved, and the clamping and positioning mechanism is particularly suitable for the workpiece with a certain length.

It will be appreciated that to avoid interference between the first clamping assembly 20 and the second clamping assembly 30 while increasing the contact area of each pinch roller with the workpiece, the first clamping assembly 20 and the second clamping assembly 30 are not in the same vertical plane. As for whether the axes of the upper pinch roller 21 and the lower pinch roller 22, the axes of the left pinch roller 31 and the right pinch roller 32 are parallel or not depends on the shape of the outer surface of the workpiece. For the section steel, the upper pinch roller 21 and the lower pinch roller 22 are arranged in parallel, the left pinch roller 31 and the right pinch roller 32 are arranged in parallel, and the upper pinch roller 21 (lower pinch roller 22) and the left pinch roller 31 (right pinch roller 32) are arranged vertically.

The first driving member 23 may be an air cylinder, an oil cylinder, an electric cylinder, or the like, and the output end of the first driving member 23 is provided with an upper pressing adjusting plate 24, and the upper pressing roller 21 is rotatably disposed on the upper pressing adjusting plate 24. Illustratively, the bottoms of the opposite ends of the upper pressing adjusting plate 24 are respectively fixed with pressing sliding blocks 25, bearings are arranged in the two pressing sliding blocks 25, and the two axial ends of the upper pressing roller 21 are respectively connected with the bearings in the two pressing sliding blocks 25. Similarly, the lower pinch roller 22 is mounted on the lower pinch adjusting plate 26, the opposite ends of the lower pinch adjusting plate 26 are also fixed with pinch sliders 25, bearings are arranged inside the pinch sliders 25, and the axial ends of the lower pinch roller 22 are respectively connected with the bearings in the two pinch sliders 25 on the lower pinch adjusting plate 26.

Referring to fig. 1, in order to provide an even clamping force to the workpiece, the first clamping assembly 20 further includes a first link 28 and a second link 29 connecting the first driving member 23 and the upper pinch roller 21, the number of the first link 28 and the second link 29 is two, the middle parts of the two first links 28 are hinged to the frame 10, the first ends of the two first links 28 are respectively hinged to the fixed end and the output end of the first driving member 23, the second ends of the two first links 28 are respectively hinged to the first ends of the second links 29, the second ends of the second links 29 are hinged to the upper pinch adjusting plate 24, and hinge points of the two second links 29 and the upper pinch adjusting plate 24 are distributed along the axial direction of the upper pinch roller 21 at intervals, so that the upper pinch roller 21 can be kept horizontally lifted to provide an even clamping force to the workpiece.

In order to provide a guiding function for the upper pinch roller 21, the outer sides of the pinch sliders 25 at both ends of the upper pinch adjusting plate 24 (opposite sides with respect to the two pinch sliders 25) are slidably abutted against the frame 10, that is, guiding the lifting and lowering of the upper pinch roller 21 by the shape of the frame 10. The rack 10 includes a support 11 and two mounting frames 12, the mounting frames 12 are in an inverted U shape and are provided with two groups, the two groups of mounting frames 12 are mounted on the support 11 in parallel, a first connecting rod 28 is mounted between the two groups of mounting frames 12 and is connected with the two groups of mounting frames 12 through pins, a lower compression adjusting plate 26 is mounted on the support 11, and an upper compression adjusting plate 24 is disposed in a U-shaped groove of the mounting frame 12 and is slidably connected with the mounting frame 12.

The wear-resisting plate 27 is also installed to the lateral surface of the pressing sliding block 25, and the pressing sliding block 25 is connected with the mounting frame 12 through the wear-resisting plate 27, so that abrasion can be reduced through the arrangement of the wear-resisting plate 27, and the service life of the clamping and positioning mechanism in the embodiment is prolonged.

The distance between the left pinch roller 31 and the right pinch roller 32 can be consistent with the distance between the left side and the right side of the workpiece, when the workpiece is placed between the left pinch roller 31 and the right pinch roller 32, the left and right clamping of the workpiece can be automatically realized, but the application range is narrow, and the workpiece with various specifications is difficult to adapt, therefore, the second clamping assembly 30 further comprises a second driving piece 33, and the output end of the second driving piece 33 is connected with the left pinch roller 31 and/or the right pinch roller 32, so that the left pinch roller 31 and the right pinch roller 32 do the movement of approaching or separating from each other, thereby adapting to the workpieces with different width specifications. Considering the manufacturing cost of the whole clamping and positioning mechanism, the output end of the second driving member 33 is connected with one of the left pinch roller 31 or the right pinch roller 32, for example, the output end of the second driving member 33 is connected with the right pinch roller 32, and the right pinch roller 32 moves close to or away from the left pinch roller 31 under the action of the second driving member 33.

The connection of only the right pinch roller 32 to the second drive 33, while reducing manufacturing costs, is not suitable for some workpieces having a centering (centering with respect to the mounting frame 12) requirement, for which purpose the left pinch roller 31 can be arranged to be adjustable with respect to the position of the frame 10 for some batch-processed workpieces, of course the adjustment of the position being effected manually, the centering of the workpiece being effected by adjusting the position of the left pinch roller 31 on the frame 10 only in accordance with the size of the workpiece during batch processing.

Still taking the connection of the right pinch roller 32 and the second driving member 33 as an example, the left pinch roller 31 is mounted on the supporting frame 35, the supporting frame 35 is fixed on the supporting seat 11 through a fastener, specifically, one of the supporting frame 35 and the supporting seat 11 is provided with a bar hole, the other is provided with a round hole, and the fastener passes through the bar hole and the round hole to realize the connection of the supporting frame 35 and the supporting seat 11. In this embodiment, the fastener may be a bolt used in cooperation with a nut, the fixing between the support 35 and the support 11 may be achieved by tightening the nut, and the position of the support 35 on the support 11 may be adjusted by loosening the nut. In order to reduce the adjustment difficulty, the clamping and positioning mechanism in this embodiment further includes a screw 34, the screw 34 disposed horizontally is in screwed connection with the frame 10, one end of the screw is abutted against the support 35, and the position of the support 35 on the support 11 can be directly adjusted by screwing the screw 34.

In summary, in the present embodiment, one of the left pinch roller 31 and the right pinch roller 32 is connected to the second driving member 33, and the other is adjusted in position on the frame 10 by the screw 34.

Specifically, referring to fig. 1 and 3, the second driving member 33 is a triaxial cylinder, and is mounted on a cylinder seat provided on the support 11, an output end of the triaxial cylinder is provided with a bearing seat 36, the right pinch roller 32 is rotatably provided on the bearing seat 36, and the right pinch roller 32 may be formed by connecting a plurality of bearings with the same specification in series.

The structure of the left pinch roller 31 may be the same as that of the right pinch roller 32, and may be formed by connecting a plurality of bearings of the same specification in series, or may be different from that of the right pinch roller 32, for example, one bearing may be used as the left pinch roller 31. Specifically, a fixed pin shaft is arranged on the supporting frame 35, a bearing serving as the left pressing roller 31 is sleeved on the fixed pin shaft, elastic check rings for holes are arranged at two axial ends of the bearing, and the elastic check rings are matched with steps on the pin shaft to axially limit the bearing.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. Clamping and positioning mechanism, its characterized in that includes:

a frame (10);

the first clamping assembly (20) comprises an upper pressing roller (21), a lower pressing roller (22) and a first driving piece (23), wherein the upper pressing roller (21) is arranged on an upper pressing adjusting plate (24) arranged at the output end of the first driving piece (23), the lower pressing roller (22) is arranged on the frame (10), the upper pressing roller (21) and the lower pressing roller (22) can rotate by taking the upper pressing roller (21) and the lower pressing roller (22) as shafts, and the first driving piece (23) is configured to drive the upper pressing roller (21) to move up and down to be close to or far away from the lower pressing roller (22);

the second clamping assembly (30) comprises a left compression roller (31) and a right compression roller (32), wherein the left compression roller (31) and the right compression roller (32) can rotate by taking the left compression roller (31) and the right compression roller (32) as shafts, and the left compression roller (31) and the right compression roller (32) can clamp a workpiece left and right.

2. Clamping and positioning mechanism according to claim 1, wherein the bottoms of the two opposite ends of the upper pressing adjusting plate (24) are respectively fixed with pressing sliding blocks (25), the two axial ends of the upper pressing roller (21) are respectively connected with the two pressing sliding blocks (25) in a rotating mode, and the outer side faces of the pressing sliding blocks (25) are in sliding abutting connection with the frame (10).

3. Clamping and positioning mechanism according to claim 2, characterized in that the outer side of the pressing slide (25) is provided with a wear plate (27).

4. Clamping and positioning mechanism according to claim 1, characterized in that the second clamping assembly (30) comprises a second driving member (33), the output end of the second driving member (33) being connected to the left pinch roller (31) and/or the right pinch roller (32) for moving the left pinch roller (31) and the right pinch roller (32) towards or away from each other.

5. Clamping and positioning mechanism according to claim 4, characterized in that one of the left pinch roller (31) or the right pinch roller (32) is connected to the output end of the second driving member (33), the other being adjustably mounted on the frame (10).

6. The clamping and positioning mechanism according to claim 5, further comprising a support frame (35), wherein the left compression roller (31) or the right compression roller (32) with the position of the frame (10) being adjustable is rotatably arranged on the support frame (35), one of the support frame (35) and the frame (10) is provided with a strip-shaped hole, the other one is provided with a round hole, and the support frame (35) and the frame (10) are fixed by a fastener passing through the strip-shaped hole and the round hole.

7. The clamping and positioning mechanism according to claim 6, further comprising a screw (34), wherein the screw (34) is horizontally arranged in threaded connection with the frame (10), and one end of the screw (34) is abutted with the supporting frame (35).

8. The clamping and positioning mechanism of claim 1, wherein the first clamping assembly (20) and the second clamping assembly (30) are not in the same vertical plane.

9. The clamping and positioning mechanism according to claim 1, wherein the first clamping assembly (20) further comprises a first connecting rod (28) and a second connecting rod (29), the number of the first connecting rod (28) and the number of the second connecting rod (29) are two, the first connecting rod (28) is hinged with the frame (10), the first ends of the two first connecting rods (28) are respectively hinged with the fixed end and the output end of the first driving piece (23), the second ends of the two first connecting rods (28) are respectively hinged with the first ends of the two second connecting rods (29), the second ends of the two second connecting rods (29) are respectively hinged with the upper pressing adjusting plate (24), and the hinge points of the two second connecting rods (29) and the upper pressing adjusting plate (24) are distributed at intervals along the axial direction of the upper pressing roller (21).

10. Clamping and positioning mechanism according to claim 1, characterized in that the left pinch roller (31) and/or the right pinch roller (32) are formed by a plurality of bearings of identical specifications in series.