Floating clamping device of pipe cutting machine

Abstract

The utility model belongs to the technical field of clamping and cutting, and particularly relates to a floating clamping device of a pipe cutting machine, which comprises a pushing mechanism and a clamping mechanism which are arranged at a feeding end of the pipe cutting machine, the pushing mechanism is movably connected with a rack of the pipe cutting machine, the clamping mechanism comprises a mounting frame, an upper sliding plate, a lower sliding plate and a cylinder, and the cylinder is arranged in a hollow structure of the mounting frame. The clamping mechanism further comprises an upper clamping head and a lower clamping head which clamp the free end of the steel pipe together, the upper clamping head and the lower clamping head are respectively provided with counterbores matched with the through holes, the upper clamping head is detachably connected with the upper sliding plate through fastening bolts, and the lower clamping head is detachably connected with the lower sliding plate through fastening bolts. The pipe cutting machine has the beneficial effects that the clamping mechanism is additionally arranged, so that the end part of a pipe to be cut is effectively fixed, the cutting quality is further improved, and the processing risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of clamping and cutting equipment technology, specifically to a floating clamping device for a pipe cutting machine. Background Technology

[0002] A pipe cutting machine is a device used to cut pipes. Its principle is based on the cooperation of air and oil. The electrical system controls the movement direction of the air pressure system, which drives the oil circuit to make a linear reciprocating motion. During the reciprocating motion, the signal detected by the limit switch of the slide plate is used as a basis to control and change the movement of the air and oil circuit, thereby achieving the expected cutting path.

[0003] Most existing pipe cutting machines have a pushing mechanism at the feed end to push the steel pipe axially. However, these mechanisms lack clamping devices, leaving the pipe end to be cut in a cantilevered state. This unsecured end may bounce due to the sudden release of cutting force, causing metal chips and fragments to fly, potentially injuring personnel or injuring equipment. This is especially problematic for heavy pipes, as the unsecured free end may sag or swing under gravity during cutting, colliding with surrounding objects. Utility Model Content

[0004] This utility model addresses the problems mentioned above by designing a floating clamping device for a pipe cutting machine. It adds a clamping mechanism to effectively fix the end of the pipe to be cut, thereby improving the cutting quality and reducing processing risks.

[0005] To achieve the above objectives, this utility model provides a floating clamping device for a pipe cutting machine, including a pushing mechanism disposed at the feeding end of the pipe cutting machine, the pushing mechanism being movably connected to the frame of the pipe cutting machine, and a clamping mechanism fixedly connected to the pushing mechanism. The clamping mechanism includes a mounting frame, an upper sliding plate, a lower sliding plate, and a cylinder. The cylinder is disposed within the hollow structure of the mounting frame, and both ends of the cylinder are respectively driven and connected to the upper sliding plate and the lower sliding plate.

[0006] Furthermore, the upper and lower sliding plates are respectively provided with multiple sets of through holes, and the clamping mechanism also includes an upper clamp and a lower clamp that jointly clamp the free end of the steel pipe. The upper clamp and the lower clamp are respectively provided with countersunk holes that are adapted to the through holes. The upper clamp is detachably connected to the upper sliding plate by fastening bolts, and the lower clamp is detachably connected to the lower sliding plate by fastening bolts.

[0007] Furthermore, the clamp includes a first clamp and a second clamp that are mirror-arranged.

[0008] Preferably, elastic pads are fixedly installed on the clamping surfaces of the upper and lower clamps.

[0009] Furthermore, the mounting bracket is provided with a double guide rail pair, and the upper and lower slide plates are slidably engaged with the guide rail pair by a slider group.

[0010] Furthermore, the lower slide plate is fixedly connected to a horizontal support plate, the horizontal support plate is fixedly connected to a vertical mounting plate, and the cylinder body end of the cylinder is connected to the vertical mounting plate through an ear and a pin.

[0011] Furthermore, the upper slide plate is fixedly connected to a transverse mounting plate, and the piston part of the cylinder is driven to connect to the transverse mounting plate through a floating joint.

[0012] Furthermore, reinforcing ribs are fixedly connected between the upper sliding plate and the transverse mounting plate, and between the lower sliding plate and the transverse support plate.

[0013] Furthermore, the mounting bracket is fixedly connected to multiple sets of cover plates, which enclose the hollow structure of the mounting bracket.

[0014] Furthermore, the cover plate is provided with a slot, and the air circuit wiring of the cylinder passes through the slot.

[0015] In summary, this utility model has the following advantages and beneficial technical effects:

[0016] 1. This utility model adds a clamping mechanism, which uses a cylinder, an upper sliding plate and a lower sliding plate to effectively fix the end of the pipe to be cut, thereby avoiding the problem of bouncing and reducing the processing risk. On the other hand, the clamping mechanism provides stable support for the steel pipe and improves the processing quality of the cutting machine.

[0017] 2. The detachable design of the upper and lower clamps in this utility model allows for clamping of pipes of different sizes and shapes. Adjusting the distance between the upper and lower clamps accommodates pipes of different sizes (diameter or length), and changing the V-angle between clamping blocks 1 and 2 accommodates pipes of different shapes. The elastic pads utilize their own deformation to counteract the compressive stress on the pipe, reducing frictional wear.

[0018] 3. The cooperation between the guide rail pair and the slider assembly in this utility model provides guidance for the movement of the skateboard and increases the stability of the skateboard movement.

[0019] 4. The floating joint and earring in this utility model are used to support and install the cylinder, improve the stability of the cylinder feed, and thus achieve stable clamping of the steel pipe by the clamping mechanism. The cover plate is used to reduce the contamination of the cylinder by dust in the production workshop. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the installation of this utility model and the complete machine;

[0022] Figure 2 This is a three-dimensional schematic diagram of the present invention. Figure 1 ;

[0023] Figure 3 This is a schematic diagram of the chuck structure in this utility model;

[0024] Figure 4 This is a partial structural schematic diagram of the present invention;

[0025] Figure 5 This is a three-dimensional schematic diagram of the present invention. Figure 2 .

[0026] The reference numerals in the attached figures are:

[0027] 1. Clamping mechanism; 11. Mounting bracket; 111. Slider assembly; 112. Cover plate;

[0028] 12. Upper sliding plate; 121. Horizontal mounting plate; 122. Reinforcing rib; 123. Floating joint;

[0029] 13. Slide board; 131. Horizontal support plate; 132. Vertical mounting plate; 133. Earring;

[0030] 14. Cylinder; 15. Upper chuck; 151. Clamping block one; 152. Clamping block two; 16. Lower chuck;

[0031] 2. Pushing mechanism; 3. Pipe cutting machine frame; 4. Steel pipe. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-5 The present invention will be described in further detail as follows:

[0033] like Figure 1 As shown, this embodiment discloses a floating clamping device for a pipe cutting machine, including a pushing mechanism 2 disposed at the feeding end of the pipe cutting machine. The pushing mechanism 2 is movably connected to the pipe cutting machine frame 3 via a motor-driven gear and rack transmission. The pipe cutting machine frame 3 is provided with a double rack track along its length. The pushing mechanism 2 is equipped with a motor, and a gear is fixedly connected to the output shaft of the motor. The gear meshes with the rack. When the motor is started, the rack rotates, thereby driving the pushing mechanism 2 to reciprocate along the length of the pipe cutting machine. The pushing mechanism 2 and the transmission method are existing technologies and will not be described in detail here.

[0034] like Figure 1 and Figure 2As shown, a clamping mechanism 1 is fixedly connected to the pushing mechanism 2. The clamping mechanism 1 includes a mounting frame 11, an upper sliding plate 12, a lower sliding plate 13, and a cylinder 14. The mounting frame 11 has a hollow structure, and the cylinder 14 is disposed inside the hollow structure of the mounting frame 11. The two ends of the cylinder 14 drive the upper sliding plate 12 and the lower sliding plate 13 respectively. Multiple sets of through holes are linearly arrayed in the center of the upper sliding plate 12 and the lower sliding plate 13. The clamping mechanism 1 also includes an upper clamp 15 and a lower clamp 16 that jointly clamp the free end of the steel pipe 4. The upper clamp 15 and the lower clamp 16 are respectively provided with countersunk holes adapted to the through holes. The upper clamp 15 is detachably connected to the upper sliding plate 12 by fastening bolts, and the lower clamp 16 is detachably connected to the lower sliding plate 13 by fastening bolts.

[0035] like Figure 3 As shown, the chuck includes a first chuck block 151 and a second chuck block 152 arranged in a mirror image. The clamping surfaces of the upper chuck 15 and the lower chuck 16 are respectively glued with elastic pads.

[0036] like Figure 4 As shown, the mounting bracket 11 has a double guide rail pair, and the upper slide plate 12 and the lower slide plate 13 slide and engage with the guide rail pair respectively through the slider assembly 111. A horizontal support plate 131 is welded to the side of the lower slide plate 13 away from the cutting area, and a vertical mounting plate 132 is welded to the horizontal support plate 131. The cylinder end of the cylinder 14 is driven and connected to the vertical mounting plate 132 through an ear ring 133 and a pin. A horizontal mounting plate 121 is welded to the same side of the upper slide plate 12, and the piston part of the cylinder 14 is driven and connected to the horizontal mounting plate 121 through a floating joint 123. Multiple sets of reinforcing ribs 122 are welded between the upper slide plate 12 and the horizontal mounting plate 121, and between the lower slide plate 13 and the horizontal support plate 131.

[0037] like Figure 5 As shown, multiple sets of cover plates 112 are mounted on the back of the mounting bracket 11 by fastening screws, and the cover plates 112 cover the hollow structure of the mounting bracket 11. The cover plates 112 are provided with elliptical slots, through which the air circuit wiring of the cylinder 14 is led out.

[0038] The working principle of the floating clamping device for a pipe cutting machine according to this utility model is as follows:

[0039] Before use, the upper clamp 15 and the lower clamp 16 work together to clamp the square or round tube. According to the size of the steel pipe 4, adjust the position of the clamp on the slide plate and the V-shaped angle formed by the clamping block 151 and the clamping block 252 so that the clamping mechanism 1 can firmly clamp the free end of the steel pipe 4.

[0040] In use, the piston rod in cylinder 14 extends, and then the steel pipe 4 is placed between the upper clamp 15 and the lower clamp 16. The cylinder 14 sinks due to the weight of the upper slide plate 12. The upper slide plate 12 descends with the piston, so that the upper clamp 15 presses down on the upper part of the steel pipe 4. The piston in cylinder 14 continues to shorten. At this time, the upper slide plate 12 and the upper clamp 15 remain stationary, and the cylinder body end of cylinder 14 and the lower slide plate 13 move upward until the lower clamp 16 contacts the lower end of the steel pipe 4, thus completing the clamping of the free end of the steel pipe 4.

[0041] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A floating clamping device for a pipe cutting machine, comprising a pushing mechanism disposed at the feed end of the pipe cutting machine, the pushing mechanism being movably connected to the frame of the pipe cutting machine, characterized in that: It also includes a clamping mechanism that is fixedly connected to the pushing mechanism. The clamping mechanism includes a mounting frame, an upper sliding plate, a lower sliding plate, and a cylinder. The cylinder is disposed in the hollow structure of the mounting frame, and the two ends of the cylinder are respectively driven and connected to the upper sliding plate and the lower sliding plate.

2. The floating clamping device for a pipe cutting machine according to claim 1, characterized in that: The upper and lower sliding plates are respectively provided with multiple sets of through holes. The clamping mechanism also includes an upper clamp and a lower clamp that jointly clamp the free end of the steel pipe. The upper clamp and the lower clamp are respectively provided with countersunk holes that are adapted to the through holes. The upper clamp is detachably connected to the upper sliding plate by fastening bolts, and the lower clamp is detachably connected to the lower sliding plate by fastening bolts.

3. The floating clamping device for a pipe cutting machine according to claim 2, characterized in that: The clamp includes clamp block one and clamp block two, which are mirror-arranged.

4. The floating clamping device for a pipe cutting machine according to claim 2, characterized in that: The clamping surfaces of the upper and lower clamps are respectively fixedly equipped with elastic pads.

5. A floating clamping device for a pipe cutting machine according to claim 1, characterized in that: The mounting bracket is provided with a double guide rail pair, and the upper and lower slide plates are slidably engaged with the guide rail pair by a slider group.

6. The floating clamping device for a pipe cutting machine according to claim 1, characterized in that: The lower slide plate is fixedly connected to a horizontal support plate, and the horizontal support plate is fixedly connected to a vertical mounting plate. The cylinder body end of the cylinder is connected to the vertical mounting plate through an ear and a pin.

7. A floating clamping device for a pipe cutting machine according to claim 6, characterized in that: The upper slide plate is fixedly connected to a transverse mounting plate, and the piston part of the cylinder is driven to connect to the transverse mounting plate through a floating joint.

8. A floating clamping device for a pipe cutting machine according to claim 7, characterized in that: The upper sliding plate and the horizontal mounting plate, as well as the lower sliding plate and the horizontal support plate, are all fixedly connected with reinforcing ribs.

9. A floating clamping device for a pipe cutting machine according to claim 1, characterized in that: The mounting bracket is fixedly connected to multiple sets of cover plates, which enclose the hollow structure of the mounting bracket.

10. A floating clamping device for a pipe cutting machine according to claim 9, characterized in that: The cover plate has a slot, and the air circuit wiring of the cylinder passes through the slot.

Images