A straightening pier integrated machine

Abstract

The utility model discloses a kind of straightening pier integrated machine, including the straightening mechanism, limit ring forming mechanism, cutting mechanism sequentially arranged from front to back;The straightening mechanism and limit ring forming mechanism between be provided with the travel drive mechanism for driving capillary copper pipe travel;The limit ring forming mechanism includes the fixed clamping block group and movable clamping block group being set up before and after along capillary copper pipe travel direction;The movable clamping block group can reciprocate along capillary copper pipe travel direction movement;When movable clamping block group and fixed clamping block group are clamped to capillary copper pipe, movable clamping block group moves to fixed clamping block group direction to make capillary copper pipe be extruded limit ring on it.The utility model in, straightening, forming, cutting three processes are integrated into a process, improve production efficiency, shorten process production line.

Description

Technical Field

[0001] This utility model belongs to the field of capillary copper tube technology, and in particular relates to a device for straightening capillary copper tubes and making limiting rings. Background Technology

[0002] Copper and copper alloy capillary tubes, also known as pure copper capillary tubes, are seamless tubes produced by pressing and drawing. They are strong, corrosion-resistant, lightweight, have good thermal conductivity, and high low-temperature strength. They are commonly used in the manufacture of heat exchange equipment (such as condensers). They are also used in oxygen production equipment for assembling cryogenic pipelines. Small-diameter copper capillary tubes are often used to transport pressurized liquids (such as in cooling systems, lubrication systems, and hydraulic systems) and as pressure measuring tubes in instruments.

[0003] Some capillary copper tubes used as connectors require locating rings for forming and straight tube welding for positioning, such as... Figure 1 As shown. Before the limiting ring is formed, the capillary copper tube wound into a disc shape needs to be straightened and cut to a suitable length. In the prior art, the above three processes are carried out manually with tooling, which is inefficient and the quality cannot be guaranteed. Utility Model Content

[0004] In view of this, the present invention provides an integrated straightening and piercing machine that can efficiently and with high quality complete the straightening, limiting ring forming, and cutting processes of capillary copper tubes.

[0005] To solve the above technical problems, the technical solution of this utility model is to use a straightening and piercing integrated machine, which includes a straightening mechanism, a limiting ring forming mechanism, and a cutting mechanism arranged sequentially from front to back; a traveling drive mechanism for driving the capillary copper tube is provided between the straightening mechanism and the limiting ring forming mechanism. The limiting ring forming mechanism includes a fixed clamping block group and a movable clamping block group arranged back and forth along the travel direction of the capillary copper tube; the movable clamping block group can move back and forth along the travel direction of the capillary copper tube; when the movable clamping block group and the fixed clamping block group clamp the capillary copper tube, the movable clamping block group moves towards the fixed clamping block group, thereby causing the limiting ring to be squeezed out on the capillary copper tube.

[0006] As an improvement, both the fixed clamping block group and the movable clamping block group include two clamping blocks arranged opposite each other along both sides of the capillary copper tube, and the two clamping blocks can come together to clamp the capillary copper tube.

[0007] As a further improvement, both the fixed clamping block group and the movable clamping block group are in two sets, with the two sets of fixed clamping blocks located on the outer side and the two sets of movable clamping blocks located on the inner side.

[0008] As another further improvement, the straightening mechanism includes at least two sets of straightening roller sets, each set comprising two rows of straightening rollers arranged on the same plane, the two rows of straightening rollers being staggered along both sides of the capillary copper tube; the two sets of straightening roller sets are staggered at 90° along the circumference of the capillary copper tube.

[0009] As an improvement, the spacing between the two rows of straightening rollers is adjustable.

[0010] As an improvement, the traveling drive mechanism includes a fixed clamping mold and a movable clamping mold that can move away from and towards the fixed clamping mold along the traveling direction of the capillary copper tube; the movable clamping mold clamps and pulls the capillary copper tube when it approaches the fixed clamping mold, and releases the capillary copper tube when it moves away from the fixed clamping mold, and the fixed clamping mold clamps the capillary copper tube.

[0011] As an improvement, it also includes a guide post arranged along the travel direction of the capillary copper tube, and a slider that can slide back and forth along the guide post; the movable clamping mold is mounted on the slider; it also includes a lead screw arranged parallel to the guide post, the lead screw being threadedly engaged with the slider and driving the slider to move along the guide post by rotation.

[0012] As an improvement, a dynamic guide sleeve is provided between the fixed clamping mold and the movable clamping mold; the dynamic guide sleeve can slide along the guide post, and a slide rod parallel to the guide post is provided on the side facing the movable clamping mold. The slide rod passes through a through hole on the slider, and an enlarged part is provided at the tail end of the slide rod. The diameter of the enlarged part is larger than the through hole, so that when the slider slides to the enlarged part of the slide rod, it can pull the dynamic guide sleeve to move.

[0013] As an improvement, the cutting mechanism includes clamping blocks for clamping capillary copper tubes and an electric saw for cutting capillary copper tubes; the clamping blocks are arranged in pairs facing each other, and there are two sets, front and back; a gap is left between the two sets of clamping blocks to allow the electric saw to pass through; it also includes a slide rail, on which the electric saw is mounted and can move.

[0014] As an improvement, a cleaning mechanism is provided before the straightening mechanism; the cleaning mechanism includes a cleaning pipe and an air duct arranged front and back along the travel direction of the capillary copper tube; both the cleaning pipe and the air duct are arranged along the travel direction of the capillary copper tube; an oil spray nozzle is opened on the side wall of the cleaning pipe, and an air spray nozzle is opened on the side wall of the air duct.

[0015] The advantages of this utility model are: The straightening and pressing integrated machine with the above structure straightens the coil through a straightening mechanism and then forms a limiting ring on the copper tube through a limiting ring forming mechanism. The limiting ring is formed by two sets of clamping blocks clamping the capillary copper tube and bringing them together. Through compression, a raised annular protrusion is formed on the outer surface of the capillary copper tube, which serves as the limiting ring for positioning during connection. After the limiting ring is formed on the capillary copper tube, it is cut to a suitable length by a cutting mechanism, thus achieving one-time automatic forming. In this invention, the three processes of straightening, forming, and cutting are integrated into one process, improving production efficiency and shortening the production line. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the capillary copper tube and the limiting ring.

[0017] Figure 2 This is an overall structural diagram of the present invention.

[0018] Figure 3 This is a schematic diagram of the cleaning mechanism.

[0019] Figure 4 This is a schematic diagram of the school's directly affiliated institutions.

[0020] Figures 5A-5C This is a schematic diagram of the travel drive mechanism.

[0021] Figures 6A-6B This is a schematic diagram of the limiting ring forming mechanism.

[0022] Figure 7 This is a schematic diagram of the cutting mechanism.

[0023] Marked in the image: 1. Cleaning mechanism, 2. Straightening mechanism, 3. Traveling drive mechanism, 4. Limit ring forming mechanism, 5. Cutting mechanism, 6. Receiving tray, 7. Trolley, 9. Hydraulic station, 10. Touch screen, 11. Electrical control box.

[0024] 12 Cleaning pipe, 13 Air duct; 21 Straightening rollers, 22 Adjusting bolts; 31 Fixed clamping mold, 32 Movable clamping mold, 33 Lead screw, 34 Guide column, 35 Movable guide sleeve, 36 Slide rod, 361 Expansion part; 41 Fixed clamping block I, 42 Fixed clamping block II, 43 Fixed clamping block III, 44 Fixed clamping block IV, 45 Movable clamping block I, 46 Movable clamping block II, 47 Movable clamping block III, 48 Movable clamping block IV, 49 Hydraulic cylinder; 51 Electric saw, 52 Clamping block; 100 limit ring. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to specific embodiments.

[0026] like Figure 1 As shown, the limiting ring 100 machined on the capillary copper tube is used for connection and positioning with the straight tube.

[0027] like Figure 2 As shown, this utility model provides a straightening and piercing integrated machine, including a straightening mechanism 2, a limiting ring forming mechanism 4, and a cutting mechanism 5 arranged sequentially from front to back; a traveling drive mechanism 3 for driving the capillary copper tube is provided between the straightening mechanism 2 and the limiting ring forming mechanism 4. The limiting ring forming mechanism 4 includes a fixed clamping block group and a movable clamping block group arranged back and forth along the travel direction of the capillary copper tube; the movable clamping block group can move back and forth along the travel direction of the capillary copper tube; when the movable clamping block group and the fixed clamping block group clamp the capillary copper tube, the movable clamping block group moves towards the fixed clamping block group, thereby causing a limiting ring to be squeezed out on the capillary copper tube.

[0028] The principle of this invention lies in the fact that the coil is straightened by the straightening mechanism 2, and then a limiting ring is formed on the copper tube by the limiting ring forming mechanism 4. The forming of the limiting ring relies on two sets of clamping blocks clamping the capillary copper tube and bringing them closer together. Through compression, a raised annular protrusion is formed on the outer surface of the capillary copper tube, which serves as the limiting ring for positioning during connection. After the limiting ring is formed on the capillary copper tube, it is cut to a suitable length by the cutting mechanism 5, thus achieving the purpose of one-time automatic forming. In this invention, the three processes of straightening, forming, and cutting are integrated into one process, improving production efficiency and shortening the production line.

[0029] like Figures 6A-6B As shown, both the fixed clamping block assembly and the movable clamping block assembly described in this utility model include two clamping blocks arranged opposite each other along both sides of the capillary copper tube, namely fixed clamping block I41, fixed clamping block II42, and movable clamping block I45, movable clamping block II46. The two clamping blocks (i.e., fixed clamping block I41 and fixed clamping block II42, and movable clamping block I45 and movable clamping block II46) can come together to clamp the capillary copper tube. For example, the fixed clamping block assembly includes fixed clamping block I41 and fixed clamping block II42 arranged vertically. It is foreseeable that the fixed clamping blocks I41 and fixed clamping block II42 can clamp the capillary copper tube by coming together opposite each other. The clamping blocks can be driven by a hydraulic cylinder 49, a pneumatic cylinder, etc. The clamping principle of the movable clamping blocks is the same and will not be described further here.

[0030] In addition, the movable clamping block assembly can be set on the slide rail and can move along the slide rail (not shown in the figure). The movable clamping block assembly is brought closer to the fixed clamping block assembly by the linear drive mechanism, thereby achieving the purpose of squeezing the copper tube to form a limiting ring.

[0031] To improve production efficiency, in this embodiment, both the fixed clamping block group and the movable clamping block group consist of two sets: fixed clamping block I41, fixed clamping block II42, movable clamping block I45, movable clamping block II46, fixed clamping block III43, fixed clamping block IV44, and movable clamping block III47 and movable clamping block IV48. The two sets of fixed clamping blocks are located on the outer side, and the two sets of movable clamping blocks are located on the inner side. As shown in the figure, the two sets of movable clamping blocks in the middle can move forward and backward respectively, thus closing in on the two sets of movable clamping blocks on the outer side. This simultaneously forms two limiting rings on the capillary copper tube, thereby improving production efficiency. Of course, for products where only one end needs to form a limiting ring, only one pair of cooperating fixed clamping block groups and movable clamping block groups can be activated, thus forming only one limiting ring.

[0032] like Figure 4 As shown, the straightening mechanism 2 in this invention includes at least two sets of straightening roller groups. Each set includes two rows of straightening rollers 21 arranged on the same plane, with the two rows of rollers 21 staggered along both sides of the capillary copper tube. The two sets of straightening roller groups are offset at 90° along the circumference of the capillary copper tube. For example, the straightening roller groups located at the front are all arranged along the vertical plane, thereby straightening the capillary copper tube in the vertical direction. The straightening roller groups located at the rear are all arranged along the horizontal plane, thereby straightening the capillary copper tube in the horizontal direction. Through vertical and horizontal straightening, the copper tube is transformed from a coiled tube into a straight tube. Of course, to improve the straightening effect, multiple sets of straightening roller groups can also be provided.

[0033] Furthermore, to accommodate capillary copper tubes of different diameters, the spacing between the two rows of straightening rollers in the same straightening roller set is adjustable. Specifically, the straightening roller 21 can be mounted on a support frame, with adjusting bolts 22 connected to the support frame. Bearings are installed at both ends of the rotating shaft of the straightening roller 21, and the bearings are mounted on bearing seats. The bearing seats are floatingly mounted on the support frame, and a preload spring is installed between the bearing seats and the support frame. The tightening direction of the adjusting bolts 22 on the bearing seats is opposite to the preload force of the spring, thereby allowing the position of the straightening roller 21 to be adjusted.

[0034] like Figures 5A-5CAs shown, the driving mechanism 3 of this invention includes a fixed clamping mold 31 and a movable clamping mold 32 that can move away from and towards the fixed clamping mold 31 along the travel direction of the capillary copper tube. In this embodiment, the movable clamping mold 32 is positioned in front of the fixed clamping mold 31. When the movable clamping mold 32 approaches the fixed clamping mold 31, it clamps and pulls the capillary copper tube. When the movable clamping mold 32 moves away from the fixed clamping mold 31, it releases the capillary copper tube, and the fixed clamping mold 31 clamps it again. During the process of the movable clamping mold 32 approaching the fixed clamping mold 31, only the movable clamping mold 32 clamps the capillary copper tube, thus pulling it and providing power for its movement. During the process of the movable clamping mold 32 moving away from the fixed clamping mold 31, the fixed clamping mold 31 clamps the capillary copper tube to prevent it from retracting.

[0035] Specifically, this embodiment also includes a guide post 34 arranged along the travel direction of the capillary copper tube, and a slider that can slide back and forth along the guide post 34; the movable clamping mold 32 is mounted on the slider; it also includes a lead screw 33 arranged parallel to the guide post 34, the lead screw 33 being threadedly engaged with the slider and driving the slider to move along the guide post 34 by rotation. The lead screw 33 can be driven by a motor or the like, thereby precisely controlling the movement of the movable clamping mold.

[0036] When the movable clamping mold 32 retracts to its furthest position from the fixed clamping mold 31, the distance between them is relatively large. Since the capillary copper tube itself has a certain weight, it is prone to sag under gravity. This results in inconsistent force directions when the capillary copper tube is pulled, causing it to bend. To solve this problem, a dynamic guide sleeve 35 is provided between the fixed clamping mold 31 and the movable clamping mold 32 in this invention. The dynamic guide sleeve 35 can move back and forth between the fixed and movable clamping molds, its purpose being to support the capillary copper tube between the fixed and movable clamping molds 31 and 32. The distance between the fixed and movable clamping molds 31 is dynamically changing. If the position of the guide sleeve remains unchanged, it can only be positioned close to the fixed clamping mold 31, which fails to support the capillary copper tube. Conversely, if the position is too far from the fixed clamping mold 31, it will interfere with the operation of the movable clamping mold 32.

[0037] To solve this problem, a dynamic guide sleeve 35 is provided in this utility model. The dynamic guide sleeve 35 can slide along the guide post 34. A slide rod 36 parallel to the guide post 34 is provided on the side of the slide rod facing the movable clamping mold 32. The slide rod 36 passes through the through hole on the slider, and an enlarged part 361 is provided at the tail end of the slide rod 36. The diameter of the enlarged part 361 is larger than the through hole, so that when the slider slides to the enlarged part 361 of the slide rod 36, it can pull the dynamic guide sleeve 35 to move.

[0038] With this configuration, when the movable clamping mold 32 moves closer to the fixed clamping mold 31, it drives the movable guide sleeve 35 to move towards the fixed clamping mold 61 without interfering with the movement of the movable clamping mold 32. When the movable clamping mold 32 moves away from the fixed clamping mold 31, the movable guide sleeve 35 can be pulled by the slide rod 36, so that the position of the movable guide sleeve 5 is located in a position relatively between the fixed clamping mold 31 and the movable clamping mold 32 (the specific position can be adjusted by the length of the slide rod 36), thereby achieving a better supporting effect.

[0039] like Figure 7 As shown, the cutting mechanism 5 of this utility model includes a clamping block 52 for clamping capillary copper tubes and an electric saw 51 for cutting capillary copper tubes; the clamping blocks are arranged in pairs facing each other as a group, and there are two groups in front and behind; a gap is left between the two groups of clamping blocks 52 for the electric saw to pass through; it also includes a slide rail, and the electric saw 51 is arranged on the slide rail and can move along the slide rail.

[0040] In this implementation, the clamping blocks 52 in the same group are arranged in a left-right direction. After the electric saw cuts the capillary copper tube into sections, it falls naturally onto the receiving tray 6 below using gravity. The receiving tray is set on the trolley 7 for easy replacement when full.

[0041] like Figure 3 As shown, a cleaning mechanism 1 is provided before the straightening mechanism 2 in this utility model; the cleaning mechanism 1 includes a cleaning pipe 13 and an air duct 12 arranged front and rear along the travel direction of the capillary copper tube; both the cleaning pipe 13 and the air duct 12 are arranged along the travel direction of the capillary copper tube; an oil spray nozzle is opened on the side wall of the cleaning pipe 13, and an air spray nozzle is opened on the side wall of the air duct 12. The capillary copper tube first passes through the cleaning pipe 13, where cleaning oil is used to clean the stains on the outer wall. When passing through the air duct 12, compressed air is used to blow away the surface oil stains of the capillary copper tube, achieving the purpose of cleaning.

[0042] It is foreseeable that, in order to cool the equipment, this utility model is also equipped with a water cooler; in order to provide hydraulic pressure for driving devices such as oil cylinders, this utility model also includes a hydraulic station 9; in order to facilitate control, this utility model is equipped with an electrical control box 11; in order to facilitate operation, this utility model is equipped with a touch screen 10.

[0043] The above are merely preferred embodiments of this utility model. It should be noted that the above preferred embodiments should not be considered as limitations on this utility model, and the scope of protection of this utility model should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A straightening pier integrated machine, characterized in that: It includes a straightening mechanism, a limiting ring forming mechanism, and a cutting mechanism arranged sequentially from front to back; a traveling drive mechanism for driving the capillary copper tube is provided between the straightening mechanism and the limiting ring forming mechanism. The straightening mechanism includes at least two sets of straightening roller sets, each set comprising two rows of straightening rollers arranged on the same plane, the two rows of straightening rollers being staggered along both sides of the capillary copper tube; the two sets of straightening roller sets are staggered at 90° along the circumference of the capillary copper tube. The limiting ring forming mechanism includes a fixed clamping block group and a movable clamping block group arranged back and forth along the travel direction of the capillary copper tube; the movable clamping block group can move back and forth along the travel direction of the capillary copper tube; when the movable clamping block group and the fixed clamping block group clamp the capillary copper tube, the movable clamping block group moves towards the fixed clamping block group, thereby causing a limiting ring to be squeezed out on the capillary copper tube; The cutting mechanism includes clamping blocks for clamping capillary copper tubes and an electric saw for cutting capillary copper tubes; the clamping blocks are arranged in pairs facing each other, and there are two sets, front and back; a gap is left between the two sets of clamping blocks to allow the electric saw to pass through; it also includes a slide rail, on which the electric saw is mounted and can move.

2. The integrated straightening and pier-raising machine according to claim 1, characterized in that: Both the fixed clamping block group and the movable clamping block group include two clamping blocks arranged opposite each other along both sides of the capillary copper tube, and the two clamping blocks can come together to clamp the capillary copper tube.

3. The integrated straightening and pier-raising machine according to claim 1, characterized in that: Both the fixed clamping block group and the movable clamping block group consist of two groups, with the two groups of fixed clamping blocks located on the outer side and the two groups of movable clamping blocks located on the inner side.

4. The integrated straightening and pier-raising machine according to claim 1, characterized in that: The spacing between the two rows of straightening rollers is adjustable.

5. The integrated straightening and pier-raising machine according to claim 1, characterized in that: The traveling drive mechanism includes a fixed clamping mold and a movable clamping mold that can move away from and towards the fixed clamping mold along the traveling direction of the capillary copper tube; the movable clamping mold clamps and pulls the capillary copper tube when it approaches the fixed clamping mold, and releases the capillary copper tube when it moves away from the fixed clamping mold, and the fixed clamping mold clamps the capillary copper tube.

6. The integrated straightening and pier-raising machine according to claim 5, characterized in that: It also includes a guide post arranged along the direction of travel of the capillary copper tube, and a slider that can slide back and forth along the guide post; the movable clamping mold is mounted on the slider; it also includes a lead screw arranged parallel to the guide post, the lead screw being threadedly engaged with the slider and driving the slider to move along the guide post by rotation.

7. The integrated straightening and pier-raising machine according to claim 6, characterized in that: A dynamic guide sleeve is provided between the fixed clamping mold and the movable clamping mold; the dynamic guide sleeve can slide along the guide post, and a slide rod parallel to the guide post is provided on the side of the dynamic clamping mold facing the movable clamping mold. The slide rod passes through the through hole on the slider, and an enlarged part is provided at the tail end of the slide rod. The diameter of the enlarged part is larger than the through hole, so that when the slider slides to the enlarged part of the slide rod, it can pull the dynamic guide sleeve to move.

8. The integrated straightening and pier-raising machine according to claim 1, characterized in that: A cleaning mechanism is provided in front of the straightening mechanism; the cleaning mechanism includes a cleaning pipe and an air duct arranged in front and behind along the direction of travel of the capillary copper tube; both the cleaning pipe and the air duct are arranged along the direction of travel of the capillary copper tube; an oil spray port is opened on the side wall of the cleaning pipe, and an air spray port is opened on the side wall of the air duct.

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