CN219483977U - Straight pipe end clamping device of pipe expander - Google Patents

Abstract

The utility model discloses a straight pipe end clamping device of a pipe expander, which comprises a processing table, wherein one side of the center of the front surface of the processing table is provided with a mounting frame, the top and the bottom of one side in the mounting frame are fixedly provided with air cylinders, the air cylinders are fixedly connected with piston rods through the output ends of one side of the air cylinders, one ends of the two piston rods are fixedly connected with connecting plates, and a movable sleeve is fixedly arranged between the two connecting plates. This straight tube end clamping device of expand tube machine, through the cooperation of cylinder, movable sleeve, ball, clamping plate, taper groove, spring and buffer clamp plate, when pressing from both sides tightly to the pipeline, drive two cylinders and drive movable sleeve and remove at two clamping plate surfaces, slide along the inclined plane of two clamping plates through the ball in the taper groove to can make two clamping plates relative movement and press from both sides tight pipeline through the buffer clamp plate, the ball can avoid taper groove and clamping plate to receive wearing and tearing after long-term use.

Description

Straight pipe end clamping device of pipe expander

Technical Field

The utility model relates to the technical field of clamping devices of tube expanding machines, in particular to a straight tube end clamping device of a tube expanding machine.

Background

The tube expander is a special hydraulic expansion joint device for the expansion joint of tubes and tube plates in the manufacture of heat exchangers, condensers, high-pressure heaters and other devices, and has the advantages of low manufacturing cost, light labor intensity, short manufacturing period, uniform and reliable expansion joint quality and the like by using a hydraulic expansion joint technology.

In the process of machining the pipe expander, the straight pipe end needs to be clamped, however, the clamping mode of the existing pipe expander is complex, meanwhile, as the pipe fitting is of a hollow structure, the pipe fitting is easy to damage in the process of clamping the pipe fitting, the use of a user is inconvenient, the practicability of the clamping device is reduced, and the market demand cannot be met. Therefore, we propose a straight pipe end clamping device of a pipe expander.

Disclosure of Invention

The utility model aims to provide a straight pipe end clamping device of a pipe expander, which solves the problems that the prior pipe expander is complicated in clamping mode in the background art, and meanwhile, because a pipe fitting is of a hollow structure, the pipe fitting is easy to damage in the clamping process of the pipe fitting, the use of a user is inconvenient, the practicability of the clamping device is reduced, and the market demand cannot be met.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a straight tube end clamping device of expand tube machine, includes the processing platform, one side at processing platform front surface center is provided with the mounting bracket, the equal fixed mounting in top and bottom of one side has the cylinder in the mounting bracket, the cylinder is through the output fixedly connected with piston rod of its one side, the equal fixedly connected with connecting plate of one end of two piston rods, fixed mounting has the movable sleeve between two connecting plates, the conical groove has been seted up at the center of movable sleeve one side, the inner wall roll mounting in conical groove has the ball, the top and the bottom of movable sleeve one side all are provided with the clamping plate, and two clamping plates are the upper and lower symmetry setting, the mounting groove has all been seted up to the near front end position and near the rear end position of clamping plate top both sides, the interior bottom fixed mounting of mounting groove has the spring, and the top of four springs runs through the outside to four mounting grooves respectively, and the top fixed mounting of four springs has the buffering splint.

Compared with the prior art, the utility model has the beneficial effects that:

this straight tube end clamping device of expand tube machine, through the cylinder, movable sleeve, the ball, the grip block, the taper groove, the spring is with buffer splint mutually support, when pressing from both sides tightly to the pipe fitting, drive two cylinders and drive the movable sleeve and remove at two grip block surfaces, slide along the inclined plane of two grip blocks through the ball in the taper groove, thereby can make two grip blocks relative movement and press from both sides tight to the pipe fitting through buffer splint, the ball can avoid taper groove and grip block to receive wearing and tearing after long-term use, simultaneously, in the in-process of centre gripping, the elastic effect that has through the spring, two buffer splint cushion the pipe fitting at the in-process of pipe fitting surface clamp, avoid the pipe fitting impaired, the operation of being convenient for has improved clamping device's practicality.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged partial schematic view of the FIG. 1A;

FIG. 3 is a perspective view of the structure of the movable sleeve of the present utility model;

fig. 4 is a front view of the structure of the present utility model.

In the figure: 1. a processing table; 2. a mounting frame; 3. a cylinder; 4. a piston rod; 5. a connecting plate; 6. a first chute; 7. a first slider; 8. a movable sleeve; 9. a ball; 10. a clamping plate; 11. a conical groove; 12. a mounting groove; 13. a spring; 14. a buffer clamping plate; 15. a sponge plate; 16. a second chute; 17. a second slider; 18. a rebound rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a straight tube end clamping device of expand tube machine, the equal fixedly connected with mounting panel of lean on both sides position of mounting bracket 2 top and bottom, the mounting hole has all been seted up to the front surface of four mounting panels, four mounting holes all pass through screw and processing platform 1 fixed connection.

First spout 6 has all been seted up to the inside top of mounting bracket 2 and the inside bottom lean on one side position, and the center of two connecting plates 5 tops that set up from top to bottom and bottom is the first slider 7 of all fixedly connected with, and the top and the bottom of two first sliders 7 that set up from top to bottom run through respectively to the inside of two first spouts 6 and with the inner wall sliding connection of first spout 6, make movable sleeve 8 possess the stationarity when removing.

One end of each of the two clamping plates 10 penetrates through the outer portion of the conical groove 11, and the surfaces of the balls 9 are respectively in arc-shaped inclined surface contact with the top and the bottom of each of the two clamping plates 10, so that surface abrasion of the clamping plates 10 is avoided.

The sponge boards 15 are fixedly arranged on the opposite sides of the two buffer clamping plates 14, so that the surface of the pipe fitting is prevented from being worn in the process of clamping the pipe fitting.

The second sliding groove 16 is formed in the center of one side of the inner wall of the mounting frame 2, the second sliding blocks 17 are fixedly arranged in the centers of one sides of the two clamping plates 10, and one sides of the two second sliding blocks 17 penetrate through the second sliding groove 16 and are in sliding connection with the inner wall of the second sliding groove 16, so that stability of the clamping plates 10 in moving is guaranteed.

A rebound rod 18 is fixedly arranged in the center of the second sliding groove 16, two ends of the rebound rod 18 are fixedly connected with the bottoms and the tops of the two second sliding blocks 17 respectively, and after the movable sleeve 8 is reset, the two clamping plates 10 can be pushed to be opened through the rebound rod 18.

Working principle: during operation, the pipe fitting is firstly placed between the two buffer clamping plates 14, then the two cylinders 3 are simultaneously driven to drive the movable sleeve 8 to move rightward along the surfaces of the two clamping plates 10, at the moment, the balls 9 in the conical grooves 11 roll on the inclined surfaces of the two clamping plates 10, so that the two clamping plates 10 relatively move along with the movement of the movable sleeve 8, the two clamping plates 10 clamp the pipe fitting, the clamping plates 10 buffer the pipe fitting through the springs 13 in the clamping process, and after the pipe fitting is clamped and fixed, the pipe fitting is expanded and processed through the pipe expander on the processing table 1.

To sum up: this straight tube end clamping device of expander, through the cooperation of cylinder 3, movable sleeve 8, ball 9, clamping plate 10, the taper groove 11, spring 13 and buffer clamp plate 14, when pressing from both sides tight to the pipe fitting, drive two cylinders 3 and drive movable sleeve 8 at two clamping plate 10 surface removal, ball 9 in through the taper groove 11 slides along the inclined plane of two clamping plates 10, thereby can make two clamping plates 10 relative movement and press from both sides tight to the pipe fitting through buffer clamp plate 14, ball 9 can avoid conical groove 11 and clamping plate 10 to receive wearing and tearing after long-term use, simultaneously, in the in-process of centre gripping, through the elastic effect that spring 13 has, two buffer clamp plates 14 cushion to the pipe fitting at the in-process of pipe fitting surface clamp, avoid the pipe fitting impaired, the operation of being convenient for has improved clamping device's practicality.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components that appear in this article all are connected with external main control unit and 220V commercial power to main control unit can be servo motor, contact sensor, treater, alarm module and drive module etc. play the conventional known equipment of control, and the standard part that uses in this application file all can purchase from market, and the concrete connected mode of each part all adopts the conventional means such as mature bolt, rivet, welding in the prior art to be connected, and machinery, part and equipment all adopt the conventional model in the prior art, plus circuit connection adopts the conventional connected mode in the prior art, and no specific description is made here.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a straight tube end clamping device of expand tube machine, includes processing platform (1), its characterized in that: one side at processing platform (1) front surface center is provided with mounting bracket (2), the top and the bottom of one side in mounting bracket (2) are all fixed mounting has cylinder (3), cylinder (3) are through the output fixedly connected with piston rod (4) of its one side, the equal fixedly connected with connecting plate (5) of one end of two piston rods (4), fixed mounting has movable sleeve (8) between two connecting plates (5), conical groove (11) have been seted up at the center of movable sleeve (8) one side, the inner wall roll-mounting ball (9) of conical groove (11), the top and the bottom of movable sleeve (8) one side all are provided with clamping plate (10), and two clamping plates (10) are the upper and lower symmetry setting, the front end position and the rear end position of leaning on of clamping plate (10) top both sides all have been seted up mounting groove (12), the interior bottom fixed mounting of mounting groove (12) has spring (13), and the top of four spring (13) runs through to the outside of four mounting groove (12) respectively, and the top fixed mounting of four spring (13) has buffer clamping plate (14).

2. A straight pipe end clamping device for a pipe expander as claimed in claim 1, wherein: the mounting frame is characterized in that mounting plates are fixedly connected to the positions, close to the two sides, of the top and the bottom of the mounting frame (2), mounting holes are formed in the front surfaces of the four mounting plates, and the four mounting holes are fixedly connected with the processing table (1) through screws.

3. A straight pipe end clamping device for a pipe expander as claimed in claim 1, wherein: first spout (6) have all been seted up to the top in mounting bracket (2) and the interior bottom lean on one side position, and the center of two connecting plates (5) tops and the bottom that set up from top to bottom is first slider (7) of all fixedly connected with, and the top and the bottom of two first sliders (7) that set up from top to bottom run through respectively to the inside of two first spouts (6) and with the inner wall sliding connection of first spout (6).

4. A straight pipe end clamping device for a pipe expander as claimed in claim 1, wherein: one end of each of the two clamping plates (10) penetrates through the outer portion of the conical groove (11), and the surfaces of the balls (9) are respectively in contact with arc-shaped inclined surfaces arranged at the top and the bottom of each of the two clamping plates (10).

5. A straight pipe end clamping device for a pipe expander as claimed in claim 1, wherein: the sponge plates (15) are fixedly arranged on the opposite sides of the two buffer clamping plates (14) which are arranged up and down.

6. A straight pipe end clamping device for a pipe expander as claimed in claim 1, wherein: the center of one side of the inner wall of the mounting frame (2) is provided with a second sliding groove (16), the centers of one side of the two clamping plates (10) are fixedly provided with second sliding blocks (17), and one side of each second sliding block (17) penetrates through the second sliding groove (16) and is in sliding connection with the inner wall of the second sliding groove (16).

7. The straight pipe end clamping device of a pipe expander according to claim 6 and wherein: the center in the second chute (16) is fixedly provided with a rebound rod (18), and two ends of the rebound rod (18) are fixedly connected with the bottoms and the tops of the two second sliding blocks (17) respectively.