CN221109471U - Small-size pressure vessel's school circle device - Google Patents

Abstract

The utility model discloses a roundness correction device of a small pressure container, which comprises an upper assembly body and a lower assembly body, wherein the upper assembly body comprises a portal frame, a linear slide rail, a slide block A, a clamp assembly body A, a semicircle die A and a cylinder A; the lower assembly body comprises a portal frame B, a linear slide rail B, a slide block B, a clamp assembly body B, a semicircle die B and a cylinder B; the left side wall of the portal frame A is hinged with the left side wall of the portal frame B through a pin shaft A, the portal frame A is driven by a cylinder C to rotate around the pin shaft A, so that opening and closing movement of the portal frame A and the portal frame B is realized, and when the portal frame A and the portal frame B are closed, the semicircular mold A and the semicircular mold B form a whole circle matched with a pipe body of a pressure container. The die is in complete contact with the pipe body, so that the problem that the pipe body is easy to deform due to uneven stress during correction is avoided. The gantry is opened by adopting an air cylinder to drive the hinge to open and close, so that the workpiece can be clamped conveniently.

Description

Small-size pressure vessel's school circle device

Technical Field

The utility model relates to the technical field of tooling devices, in particular to a roundness correcting device for a small pressure vessel.

Background

The small pressure vessel is generally formed by connecting a cylindrical pipe body and two elliptical sealing heads through a circular flange, and the circular flange is connected with the cylindrical pipe body through welding. The existing clamping mode generally adopts a chuck to correct by utilizing the centripetal movement of the clamping jaws, and the clamping jaws are not completely contacted with the pipe body, so that the pipe body is not uniformly stressed and is easy to deform during correction, and the mechanical property of the container is reduced.

Disclosure of utility model

In order to solve the technical problems, the utility model provides a roundness correcting device of a small pressure container.

The utility model adopts the technical scheme that:

The roundness correction device of the small pressure container comprises an upper assembly body and a lower assembly body, wherein the upper assembly body comprises a portal frame A with a downward opening, linear slide rails A vertically arranged on the inner sides of two side walls of the portal frame A, a sliding block A matched with the linear slide rails A, a clamp assembly body A fixed on the sliding block A, a semicircular mold A fixed on the clamp assembly body A and with a downward opening, and a cylinder A arranged on the top of the portal frame A and used for driving the clamp assembly body A to slide up and down along the linear slide rails A; the lower assembly body comprises a portal frame B with an upward opening, linear slide rails B vertically arranged on the inner sides of two side walls of the portal frame B, a sliding block B matched with the linear slide rails B, a clamp assembly body B fixed on the sliding block B, a semicircular mould B fixed on the clamp assembly body B and with the upward opening, and an air cylinder B arranged at the bottom of the portal frame B and used for driving the clamp assembly body B to slide up and down along the linear slide rails B; the left side wall of the portal frame A is hinged with the left side wall of the portal frame B through a pin shaft A, the portal frame A is driven by a cylinder C to rotate around the pin shaft A, so that opening and closing movement of the portal frame A and the portal frame B is realized, and when the portal frame A and the portal frame B are closed, the semicircular mold A and the semicircular mold B form a whole circle matched with a pipe body of a pressure container.

Further, a clamping groove is formed in the lower end of the right side wall of the portal frame A, and a pin shaft B is arranged in the clamping groove in a penetrating mode; the upper end of the right side wall of the portal frame B is rotationally connected with a lock catch through a pin shaft C, a pin hole is formed in the lock catch, when the portal frame A and the portal frame B are closed, the lock catch rotates around the pin shaft C, the pin hole is inserted into the pin shaft B, and the lock catch is locked and fixed through a set screw.

Further, a support lug A is arranged at the lower end of the left side wall of the portal frame A, a support lug B is arranged at the lower end of the left side wall of the portal frame B, and a cylinder seat and a piston rod of the cylinder C are hinged with the support lug B and the support lug A respectively.

Further, two sliding blocks A are arranged on one linear sliding rail A; two sliding blocks B are arranged on one linear sliding rail B.

Further, the semicircular die A is inserted into the inner side surface of the clamp assembly A and is fastened and connected through screws; the semicircular die B is inserted into the inner side surface of the clamp assembly B and is fastened and connected through screws.

Further, two fixing brackets are arranged at the bottom of the portal frame B.

The utility model has the beneficial effects that: the cylinder stretches up and down to drive the die to prop against the workpiece to realize the roundness correction of the pipe body of the pressure vessel, the clamp can be not required to be disassembled, the inner diameter of the die is changed only according to the pipe bodies with different pipe diameters, and the die is replaced to realize the flange welding of different pipe bodies. The die is in full contact with the pipe body, so that the problem that the pipe body is easy to deform due to uneven stress during correction is avoided. The gantry is opened by adopting an air cylinder to drive the hinge to open and close, so that the workpiece can be clamped conveniently. The gantry locking mode adopts a quick-opening locking structure, so that gaps among dies are better locked, and the correction effect is further ensured.

Drawings

Fig. 1 is a schematic view of the whole structure of a roundness correcting device of a small-sized pressure vessel of the present utility model.

Fig. 2 is a schematic structural view of the upper assembly of the present utility model.

Fig. 3 is a schematic structural view of the lower assembly of the present utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solution of the present utility model will be clearly and completely described with reference to the accompanying drawings and a preferred embodiment.

Referring to fig. 1 to 3, the present embodiment provides a rounding device for a small-sized pressure vessel, which includes an upper assembly 10 and a lower assembly 20; the upper assembly body 10 comprises a portal frame A11 with a downward opening, two linear slide rails A12 vertically arranged on the inner sides of two side walls of the portal frame A, four slide blocks A13 respectively matched with the two linear slide rails A, a clamp assembly body A14 with two sides fixedly connected with the two slide blocks A13 respectively, a semicircular mould A15 fixed on the clamp assembly body A and with a downward opening, and a cylinder A16 arranged on the top of the portal frame A and used for driving the clamp assembly body A to slide up and down along the linear slide rails A; the lower assembly 20 comprises a portal frame B21 with an upward opening, two linear slide rails B22 vertically arranged on the inner sides of two side walls of the portal frame B, four slide blocks B23 respectively matched with the two linear slide rails B, a clamp assembly B24 fixedly connected with the two slide blocks B23 respectively on two sides, a semicircular die B25 fixed on the clamp assembly B and with an upward opening, and a cylinder B26 arranged at the bottom of the portal frame B and used for driving the clamp assembly B to slide up and down along the linear slide rails B. The portal frame A11 is hinged with the portal frame B21 through a pin shaft A41, the portal frame A11 is driven by a cylinder C31 to rotate around the pin shaft A41, so that the opening and closing movement of the portal frame A11 and the portal frame B21 is realized, and when the portal frame A11 and the portal frame B21 are closed, the semicircular mold A15 and the semicircular mold B25 form a whole circle matched with the pipe body of the pressure container.

In the concrete implementation, the clamp assembly A14 and the clamp assembly B24 have the same structure and are flat plates with rectangular outer side surfaces and semicircular inner side surfaces, and the inner side surfaces of the flat plates are inwards recessed to form slots. The semicircular mould A15 and the semicircular mould B25 have the same structure and are semicircular, and a semicircular opening is formed in the center of each semicircle. The semicircular mould A15 and the semicircular mould B25 are respectively inserted into slots of the clamp assembly A14 and the clamp assembly B24 and are fixed through pins; therefore, when the pipe bodies with different diameters are welded, the clamp can be not required to be disassembled, and the inner diameter of the die is only required to be changed according to different pipe diameters, and the die is only required to be replaced.

The cylinder seat of the cylinder A16 is fixedly arranged on the portal frame A11, and a piston rod of the cylinder A16 vertically extends downwards to freely penetrate through the portal frame A11 and is fixedly connected with the clamp assembly A14 through the connector A161; the cylinder seat of the cylinder B26 is fixedly arranged on the portal frame B21, and the piston rod of the cylinder B26 vertically extends upwards to freely penetrate through the portal frame B21 and is fixedly connected with the clamp assembly B24 through the joint B261.

The lower extreme of the left side wall of portal frame A11 sets up pinhole A, and the upper end of the left side wall of portal frame B21 sets up pinhole B, and round pin axle A41 passes pinhole A and pinhole B, realizes the articulated connection of portal frame A11 and portal frame B21. The lower end of the left side wall of the portal frame A11 is provided with a support lug A111, and the support lug A111 is provided with a pin hole C; the lower end of the left side wall of the portal frame B is provided with a support lug B211, and the support lug B211 is provided with a pin hole D; the cylinder seat of the cylinder C31 is hinged with the portal frame B through a pin shaft penetrating through the pin hole D, and the piston rod of the cylinder C31 is hinged with the portal frame A11 through a pin shaft penetrating through the pin hole A; the telescopic movement of the cylinder piston rod drives the portal frame A11 to rotate around the pin shaft A41, so that the opening and closing movement of the portal frame A11 and the portal frame B21 is realized.

The lower end of the right side wall of the portal frame A11 is provided with a clamping groove, and a pin shaft B42 is arranged in the clamping groove in a penetrating way; the upper end of the right side wall of the portal frame B21 is rotationally connected with a lock catch 44 through a pin shaft C43, a pin hole E421 is formed in the lock catch 44, and the pin hole E421 is matched with the pin shaft B42.

For convenient fixation, two fixing brackets 211 are provided at the bottom of the gantry B21.

The working mode of the utility model is as follows:

selecting a proper semicircular die A15 and a proper semicircular die B25 according to the outer diameter of a pipe body to be welded, and respectively inserting the semicircular die A15 and the semicircular die B25 into slots of a clamp assembly A14 and a clamp assembly B24 and fixing the semicircular dies through pins;

When in use, the circle calibrating device is fixed by the fixing bracket 211, the piston rod of the cylinder C31 extends out, and the upper assembly body 10 is opened;

Then placing the pipe body to be welded into a semicircular die B25, retracting a piston rod of an air cylinder C31, closing a portal frame A11 and a portal frame B21, rotating a lock catch 44 around a pin shaft C43, inserting a pin hole E421 into the pin shaft B42, and locking and fixing through a set screw 45;

And then the cylinder A16 and the cylinder B26 are respectively driven to enable the upper assembly body 10 to move downwards, the lower assembly body 20 to move upwards, the semicircular die A15 and the semicircular die B25 clamp the pipe body, and the pipe body is calibrated.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention and remain within the scope of the invention.

Claims (6)

1. The roundness correcting device of the small pressure container comprises an upper assembly body (10) and a lower assembly body (20), and is characterized in that the upper assembly body (10) comprises a portal frame A (11) with a downward opening, linear slide rails A (12) vertically arranged on the inner sides of two side walls of the portal frame A, a slide block A (13) matched with the linear slide rails A, a clamp assembly body A (14) fixed on the slide block A, a semicircular mold A (15) fixed on the clamp assembly body A and with a downward opening, and a cylinder A (16) arranged on the top of the portal frame A and used for driving the clamp assembly body A to slide up and down along the linear slide rails A; the lower assembly body (20) comprises a portal frame B (21) with an upward opening, linear slide rails B (22) vertically arranged on the inner sides of two side walls of the portal frame B, a sliding block B (23) matched with the linear slide rails B, a clamp assembly body B (24) fixed on the sliding block B, a semicircular mould B (25) fixed on the clamp assembly body B and with the upward opening, and an air cylinder B (26) arranged at the bottom of the portal frame B and used for driving the clamp assembly body B to slide up and down along the linear slide rails B; the left side wall of the portal frame A (11) is hinged with the left side wall of the portal frame B (21) through a pin shaft A (41), the portal frame A (11) is driven by a cylinder C (31) to rotate around the pin shaft A (41), so that opening and closing movement of the portal frame B (21) is realized, and when the portal frame A (11) and the portal frame B (21) are closed, the semicircular mold A (15) and the semicircular mold B (25) form a whole circle matched with a pipe body of the pressure container.

2. The roundness correction device of the small pressure container according to claim 1, characterized in that the lower end of the right side wall of the portal frame A (11) is provided with a clamping groove, and a pin shaft B (42) is penetrated in the clamping groove; the upper end of the right side wall of the portal frame B (21) is rotationally connected with a lock catch (44) through a pin shaft C (43), the lock catch (44) is provided with a pin hole (421), when the portal frame A (11) and the portal frame B (21) are closed, the lock catch (44) rotates around the pin shaft C (43), the pin hole (421) is inserted into the pin shaft B (42), and the lock catch is locked and fixed through a set screw (45).

3. The rounding device of a small-sized pressure container according to claim 1, wherein a support lug a is arranged at the lower end of the left side wall of the portal frame a (11), a support lug B is arranged at the lower end of the left side wall of the portal frame B (21), and a cylinder seat and a piston rod of the cylinder C (31) are hinged with the support lug B and the support lug a respectively.

4. A device for calibrating a small-sized pressure vessel according to claim 1, characterized in that two slide blocks a (13) are mounted on one linear slide a (12); two sliding blocks B (23) are arranged on one linear sliding rail B.

5. The rounding device of a small-sized pressure vessel according to claim 1, wherein a semicircular mold a (15) is inserted into the inner side surface of the jig assembly a (14) and is connected by screw fastening; the semicircular die B (25) is inserted into the inner side surface of the clamp assembly B (24) and is fastened and connected through screws.

6. A device for calibrating a small-sized pressure vessel according to claim 1, characterized in that the bottom of the portal frame B (21) is provided with two fixing brackets (211).