CN109896273B - Pipe clamping mechanism - Google Patents

Abstract

The invention relates to a pipe clamping mechanism, comprising a supporting outer ring and a driving inner ring; the supporting outer ring and the driving inner ring are connected by an annular driving mechanism, so that the supporting outer ring and the driving inner ring can rotate with each other; the driving inner ring The ring is arranged concentrically inside the support outer ring; a plurality of support push blocks are arranged in an annular array on the support outer ring, and the support push blocks are arc-shaped structures, the outside of which is fixedly connected to the support outer ring, and the middle part of the support push blocks and the drive inner ring There is a sliding connection between them; a driving block is fixed at the position between the corresponding support and push blocks on the driving inner ring, and a driving surface with an arc-shaped cross-section is arranged on the side of the driving block corresponding to the inner side of the driving inner ring. The height increases gradually along the circumferential direction, a clamping spring plate is fixed on the support push block, and the clamping spring plate is in contact with the aforementioned driving surface; through the relative sliding of the supporting outer ring and the driving inner ring, the clamping spring plate is The aforementioned drive surface moves.

Description

A pipe clamping mechanism

technical field

The invention relates to a device for clamping pipes when moving, belonging to a pipe clamping mechanism.

Background technique

When the pipes are transported in the automatic production line, they are traditionally transported by guide rollers, but the guide rollers can only move between planes, and cannot realize the movement in different directions in the spatial direction. If additional pipe clamps are used The holding mechanism is used to clamp the pipe. The traditional one is generally bundled or clamped. First, the bundled type requires manual handling, which is difficult to achieve for heavy pipes, and the clamped type can easily cause extrusion and deformation of the pipe.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the technical problems that the pipe transport mechanism in the prior art cannot realize space transport, and the clamping stress is uneven, which easily causes pipe deformation, and provides a pipe clamping mechanism.

The technical scheme adopted by the present invention to solve its technical problems is:

A pipe clamping mechanism, comprising a supporting outer ring and a driving inner ring; the supporting outer ring and the driving inner ring are connected by an annular driving mechanism, so that the supporting outer ring and the driving inner ring can rotate with each other; the driving inner ring Arranged concentrically inside the support outer ring; wherein the annular array on the support outer ring is provided with a number of support push blocks, the support push blocks are arc structures, the outside of which is fixedly connected to the support outer ring, and the middle of the support push blocks is connected to the outer ring. The driving inner rings are slidably connected; a driving block is fixed on the driving inner ring corresponding to the position between the support push blocks, and a driving surface with an arc-shaped cross section is provided on the side of the driving block corresponding to the inner side of the driving inner ring, The height from the driving surface to the driving inner ring gradually increases along the circumferential direction, a clamping spring plate is fixed on the support push block, and the clamping spring plate is in contact with the aforementioned driving surface; The relative sliding causes the clamping spring plate to move along the aforementioned drive surface.

As a further innovation of the present invention, the annular drive mechanism includes two connecting rods that are rotatably connected to each other, namely connecting rod A and connecting rod B, and a rotating driving mechanism is arranged between the connecting rod A and connecting rod B, so The rotary drive mechanism includes a sliding sleeve A sleeved on the connecting rod A and a sliding sleeve B sleeved on the connecting rod B, and a linear cylinder is arranged between the sliding sleeve A and the sliding sleeve B; the connecting rod A One end is rotatably connected to the support push block, a connecting block is fixed on the inner drive ring corresponding to the position between the drive block and the support push block, the connecting block is slidably connected with the support outer ring and extends to the outside of the support outer ring. The other end of the rod B is rotatably connected to the connecting block.

As a further innovation of the present invention, a pre-tightening rubber block is arranged on the inner side of the support push block.

As a further innovation of the present invention, the driving block is sleeved on the driving inner ring, and a clamping screw is arranged on the driving block, and the driving block is fixed by pressing the clamping screw on the driving inner ring.

As a further innovation of the present invention, the surface of the clamping spring plate is provided with a fixing layer made of rubber.

The beneficial effects of the present invention are as follows: The present invention ensures the uniform force and stable fixation of the outer wall of the pipe through a three-jaw or even more claws linkage type pipe clamping mechanism, and the structure has a high degree of automation, and can be installed online to realize the pipe material. The continuous transfer without manual adjustment is simple and fast.

Description of drawings

The present invention will be further described below with reference to the accompanying drawings and embodiments.

Fig. 1 is the mechanism schematic diagram of the present invention;

In the figure: 1. Driving inner ring; 2. Supporting outer ring; 3. Supporting push block; 4. Clamping spring plate; 5. Driving surface; 6. Clamping screw; 7. Connecting rod A; 8. Connecting rod B ; 9, sleeve A; 10, sliding sleeve B; 11, linear cylinder.

Detailed ways

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.

As shown in Figure 1, the present invention is a pipe clamping mechanism, including a supporting outer ring and a driving inner ring; the supporting outer ring and the driving inner ring are connected by an annular driving mechanism, so that the supporting outer ring and the driving inner ring are connected can rotate with each other; the driving inner ring is arranged concentrically inside the supporting outer ring; wherein a plurality of supporting push blocks are arranged in an annular array on the supporting outer ring, and a pre-tightening rubber block is arranged on the inner side of the supporting push block, and the The support push block is an arc-shaped structure, the exterior of which is fixedly connected to the support outer ring, and the middle part of the support push block is slidably connected with the drive inner ring; the drive block is fixed at the position between the support push blocks on the drive inner ring , a drive surface with an arc-shaped cross-section is arranged on the side of the drive block corresponding to the inner side of the drive inner ring, and the height from the drive surface to the drive inner ring gradually increases along the circumferential direction, and a clip is fixed on the support push block Tighten the spring plate, and the clamping spring plate is in contact with the aforementioned driving surface; through the relative sliding of the supporting outer ring and the driving inner ring, the clamping spring plate moves along the aforementioned driving surface, and the driving block is sleeved on the driving inner ring, The driving block is provided with a clamping screw, and the driving block is fixed by pressing the clamping screw on the driving inner ring; the surface of the clamping spring plate is provided with a fixing layer of rubber material.

The annular drive mechanism includes two connecting rods that are rotatably connected to each other, namely connecting rod A and connecting rod B, and a rotating driving mechanism is arranged between the connecting rod A and connecting rod B, and the rotating driving mechanism includes a socket connection. A sliding sleeve A on the connecting rod A and a sliding sleeve B sleeved on the connecting rod B, a linear cylinder is arranged between the sliding sleeve A and the sliding sleeve B; one end of the connecting rod A is rotatably connected to the support push block On the drive inner ring, a connection block is fixed at the position between the drive block and the support push block, the connection block is slidably connected with the support outer ring and extends to the outside of the support outer ring, and the other end of the connecting rod B is connected in rotation on the connection block.

When in use, drive the linear cylinder, and use the movement of the sliding sleeve A and the sliding sleeve B to realize the rotation of the driving connecting rod A and the connecting rod B, thereby driving the rotation between the driving inner ring and the supporting outer ring, and supporting the push block and the outer ring when rotating. The driving blocks slide against each other, so that the supporting spring plate slides relative to the driving surface, and at the same time, the supporting spring plate moves toward the middle of the driving inner ring, thereby realizing the clamping of the pipe.

Taking the above ideal embodiments according to the present invention as inspiration, and through the above description, relevant personnel can make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims (5)

1. A pipe clamping mechanism is characterized in that: it comprises a supporting outer ring and a driving inner ring; the supporting outer ring and the driving inner ring are connected by an annular driving mechanism, so that the supporting outer ring and the driving inner ring can be rotating with each other; the drive inner ring is arranged concentrically inside the support outer ring; wherein a plurality of support push blocks are arranged in an annular array on the support outer ring, and the support push blocks are arc-shaped structures, the exterior of which is fixedly connected to the support outer ring, The middle part of the support push block is slidably connected with the drive inner ring; a drive block is fixed at the position between the support push blocks on the drive inner ring, and a side of the drive block corresponding to the inner side of the drive inner ring is provided with a section of The arc-shaped driving surface, the height from the driving surface to the driving inner ring gradually increases along the circumferential direction, a clamping spring plate is fixed on the support push block, and the clamping spring plate is in contact with the aforementioned driving surface; The relative sliding of the ring and the drive inner ring causes the clamping spring plate to move along the aforementioned drive surface. 2 . The pipe clamping mechanism according to claim 1 , wherein the annular drive mechanism comprises two connecting rods that are rotatably connected to each other, namely connecting rod A and connecting rod B, and the connecting rod A A rotary drive mechanism is arranged between the connecting rod B and the connecting rod B. The rotary driving mechanism includes a sliding sleeve A sleeved on the connecting rod A and a sliding sleeve B sleeved on the connecting rod B. The sliding sleeve A and the sliding sleeve A linear cylinder is arranged between B; one end of the connecting rod A is rotatably connected to the support push block, and a connecting block is fixed in the inner ring of the drive corresponding to the position between the drive block and the support push block, and the connecting block is connected to the support outer ring. It is slidably connected and extended to the outside of the support outer ring, and the other end of the connecting rod B is rotatably connected to the connecting block. 3 . The pipe clamping mechanism according to claim 1 , wherein a pre-tightening rubber block is arranged on the inner side of the support push block. 4 . 4. The pipe clamping mechanism according to claim 1, wherein the driving block is sleeved on the driving inner ring, and a clamping screw is arranged on the driving block, and the driving The extrusion of the inner ring realizes the fixing of the drive block. 5 . The pipe clamping mechanism according to claim 1 , wherein the surface of the clamping spring plate is provided with a fixing layer of rubber material. 6 .

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