Capillary copper pipe limiting ring forming machine
By designing a capillary copper tube limit ring molding machine, the capillary copper tube is straightened and limited ring molded by using the clamping block group and the straightening roller group, the problem of low process efficiency in the existing technology is solved and high efficiency is achieved , automated capillary copper pipe processing.
Patent Information
- Application Number
- CN202411471791.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2024-12-17
AI Technical Summary
In the prior art, the straightening, limit ring forming and cutting processes of capillary copper tubes mainly rely on manual tooling, which is low in efficiency and difficult to ensure quality.
Design a capillary copper tube limit ring molding machine, including a straightening mechanism, limit ring molding mechanism and a cutting mechanism, and form a limit ring by clamping and extruding the fixed clamping block group and the movable clamping block group, and The straightening and cutting of the pipeline is achieved by using the straightening roller set and the traveling drive mechanism.
It realizes efficient, high-quality straightening, limit ring forming and cutting of capillary copper tubes, integrates three processes, improves production efficiency and shortens the process production line.
Smart Images
Figure CN119141241A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of capillary copper tubes, and in particular relates to a device for straightening a capillary copper tube and making a limiting ring. Background Art
[0002] Copper and copper alloy capillaries, also known as copper capillaries, are a type of pressed and drawn seamless tubes that are strong and corrosion-resistant, lightweight, with good thermal conductivity and high low-temperature strength. They are often used to manufacture heat exchange equipment (such as condensers, etc.). They are also used to assemble low-temperature pipelines in oxygen production equipment. Copper capillaries with small diameters are often used to transport pressurized liquids (such as cooling systems, lubrication systems, oil pressure systems, etc.) and as pressure measuring tubes for instruments.
[0003] Some capillary copper tubes used as joints require limiting ring forming and straight tube welding positioning, such as Figure 1 As shown. Before the limiting ring is formed, the capillary copper tube wound into a disc needs to be straightened and cut into a suitable length. In the prior art, the above three processes are performed by manual tooling, which is inefficient and the quality cannot be guaranteed. Summary of the invention
[0004] In view of this, the present invention provides a capillary copper tube limit ring forming machine, which can efficiently and high-quality complete the capillary copper tube straightening, limit ring forming, and cutting processes.
[0005] In order to solve the above technical problems, the technical solution of the present invention is to adopt a capillary copper tube limit ring forming machine, which includes a straightening mechanism, a limit ring forming mechanism, and a cutting mechanism arranged in sequence from front to back; a travel driving mechanism for driving the capillary copper tube to travel is arranged between the straightening mechanism and the limit ring forming mechanism;
[0006] The limit ring forming mechanism includes a fixed clamping block group and a movable clamping block group arranged front and back along the traveling direction of the capillary copper tube; the movable clamping block group can move back and forth along the traveling 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 toward the fixed clamping block group so that the limit ring is squeezed out of the capillary copper tube.
[0007] As an improvement, the fixed clamping block group and the movable clamping block group each include two clamping blocks arranged opposite to each other along two sides of the capillary copper tube, and the two clamping blocks can be brought close to each other to clamp the capillary copper tube.
[0008] As a further improvement, the fixed clamping block group and the movable clamping block group are both in two groups, and the two groups of fixed clamping blocks are arranged on the outside, and the two groups of movable clamping blocks are arranged on the inside.
[0009] As another further improvement, the straightening mechanism includes at least two groups of straightening roller groups, and the straightening roller groups include two rows of straightening rollers arranged on the same plane, and the two rows of straightening rollers are staggered along both sides of the capillary copper tube; the two groups of straightening roller groups are staggered at 90° along the circumference of the capillary copper tube.
[0010] As an improvement, the spacing between the two rows of straightening rollers is adjustable.
[0011] As an improvement, the travel drive mechanism includes a fixed clamp and a movable clamp that can move away from and approach the fixed clamp along the travel direction of the capillary copper tube; the movable clamp clamps and pulls the capillary copper tube when approaching the fixed clamp, and the movable clamp releases the capillary copper tube and is clamped by the fixed clamp when moving away from the fixed clamp.
[0012] As an improvement, it also includes a guide column arranged along the direction of travel of the capillary copper tube, and a slider that can slide back and forth along the guide column; the movable clamp is installed on the slider; it also includes a lead screw arranged parallel to the guide column, the lead screw is threaded with the slider and drives the slider to move along the guide column by rotation.
[0013] As an improvement, a dynamic guide sleeve is arranged between the fixed clamp and the movable clamp; the dynamic guide sleeve can slide along the guide column, and a sliding rod parallel to the guide column is arranged on the side facing the movable clamp, the sliding rod passes through the through hole on the slider, and an enlarged portion is arranged at the tail end of the sliding rod, and the diameter of the enlarged portion is larger than the through hole, so that when the slider slides to the enlarged portion of the sliding rod, the dynamic guide sleeve can be pulled to move.
[0014] As an improvement, the cutting mechanism includes a clamping block for clamping the capillary copper tube and an electric saw for cutting the capillary copper tube; the clamping blocks are grouped into two oppositely arranged blocks, and two front and rear groups are arranged; a gap is left between the two groups of clamping blocks for the electric saw to pass through; and a slide rail is also included, and the electric saw is arranged on the slide rail and can move along the slide rail.
[0015] As an improvement, a cleaning mechanism is arranged before the straightening mechanism; the cleaning mechanism includes a cleaning tube and an air duct arranged before and after along the traveling direction of the capillary copper tube; the cleaning tube and the air duct are both arranged along the traveling direction of the capillary copper tube; an oil injection port is opened on the side wall of the cleaning tube, and an air injection port is opened on the side wall of the air duct.
[0016] The present invention is beneficial in that:
[0017] The capillary copper tube limit ring forming machine with the above structure straightens the coil through the straightening mechanism and then forms a limit ring on the copper tube through the limit ring forming mechanism 4. The forming of the limit ring relies on two sets of clamping blocks clamping the capillary copper tube and bringing them close to each other, so that a raised annular boss is formed on the outer surface of the capillary copper tube through extrusion, which serves as a limit ring for limiting during connection. After the limit ring is formed on the capillary copper tube, it is cut into a suitable length by the cutting mechanism 5, thereby achieving the purpose of one-time automatic forming. In the present invention, the three processes of straightening, forming and cutting are integrated into one process, which improves production efficiency and shortens the process production line. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 Schematic diagram of the capillary copper tube and the limiting ring.
[0019] Figure 2 It is the overall structure diagram of the present invention.
[0020] Figure 3 A schematic diagram of the cleaning mechanism.
[0021] Figure 4 Schematic diagram of the straightening mechanism.
[0022] Figure 5 Schematic diagram of the travel drive mechanism.
[0023] Figures 6A-6B Schematic diagram of the limiting ring forming mechanism.
[0024] Figure 7 Schematic diagram of the cutting mechanism.
[0025] Markings in the figure:
[0026] 1 cleaning mechanism, 2 straightening mechanism, 3 travel driving mechanism, 4 limit ring forming mechanism, 5 cutting mechanism, 6 receiving tray, 7 trolley, 8 water cooler, 9 hydraulic station, 10 touch screen, 11 electric control box.
[0027] 12 cleaning pipe, 13 air duct;
[0028] 21 straightening roller, 22 adjusting bolt;
[0029] 31 fixed clamping die, 32 movable clamping die, 33 lead screw, 34 guide column, 35 movable guide sleeve, 36 slide rod, 361 expansion part;
[0030] 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 oil cylinder;
[0031] 51 electric saw, 52 clamping block;
[0032] 100 limit ring. DETAILED DESCRIPTION
[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.
[0034] like Figure 1 As shown, the limiting ring 100 formed on the capillary copper tube is used to connect and position with the straight tube.
[0035] like Figure 2 As shown, the present invention provides a capillary copper tube limiting ring forming machine, comprising a straightening mechanism 2, a limiting ring forming mechanism 4, and a cutting mechanism 5 which are arranged in sequence from front to back; a traveling driving mechanism 3 for driving the capillary copper tube to travel is arranged between the straightening mechanism 2 and the limiting ring forming mechanism 4;
[0036] The limit ring forming mechanism 4 includes a fixed clamping block group and a movable clamping block group arranged front and back along the traveling direction of the capillary copper tube; the movable clamping block group can move back and forth along the traveling 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 toward the fixed clamping block group so that the limit ring is squeezed out of the capillary copper tube.
[0037] The principle of the present invention is that after the coil is straightened by the straightening mechanism 2, a limit ring is formed on the copper tube by the limit ring forming mechanism 4. The forming of the limit ring relies on two sets of clamping blocks to clamp the capillary copper tube and bring them close to each other, so that a raised annular boss is formed on the outer surface of the capillary copper tube through extrusion, which serves as a limit ring for limiting during connection. After the limit ring is formed on the capillary copper tube, it is cut into a suitable length by the cutting mechanism 5, thereby achieving the purpose of one-time automatic forming. In the present invention, the three processes of straightening, forming and cutting are integrated into one process, which improves production efficiency and shortens the process production line.
[0038] like Figures 6A-6B As shown, the fixed clamping block group and the movable clamping block group described in the present invention both include two clamping blocks arranged opposite to each other along the two sides of the capillary copper tube, namely, fixed clamping block I41 and fixed clamping block II42, movable clamping block I45 and movable clamping block II46, and the two clamping blocks (i.e., fixed clamping block I41 and fixed clamping block II42, movable clamping block I45 and movable clamping block II46) can be brought close to each other to clamp the capillary copper tube. For example, the fixed clamping block group includes fixed clamping block I41 and fixed clamping block II42 arranged up and down. It can be foreseen that the fixed clamping block I41 and fixed clamping block II42 can clamp the capillary copper tube by bringing them close to each other. The clamping block can be driven by an oil cylinder 49, an air cylinder, etc. The clamping principle of the movable clamping block is the same and will not be repeated here.
[0039] In addition, the movable clamping block group can be set on the slide rail and can move along the slide rail (not shown in the figure). The movable clamping block group is moved closer to the fixed clamping block group through the linear drive mechanism, thereby achieving the purpose of squeezing the copper tube to form a limit ring.
[0040] In order to improve production efficiency, in this embodiment, the fixed clamping block group and the movable clamping block group are both two groups, namely, fixed clamping block I41, fixed clamping block II42, movable clamping block I45, movable clamping block II46, fixed clamping block III43, fixed clamping block IV44, movable clamping block III47, movable clamping block IV48, and two groups of fixed clamping blocks are arranged on the outside, and two groups of movable clamping blocks are arranged on the inside. As shown in the figure, the two groups of movable clamping block groups in the middle can move to the front and rear sides respectively so as to approach the two groups of movable clamping block groups on the outside respectively. At this time, two limit rings can be formed on the capillary copper tube at the same time, thereby improving production efficiency. Of course, for products that only need to form a limit ring on one end, only a pair of mutually cooperating fixed clamping block groups and movable clamping block groups can be opened to form only one limit ring.
[0041] like Figure 4 As shown, the straightening mechanism 2 in the present invention includes at least two groups of straightening roller groups, and the straightening roller groups include two rows of straightening rollers 21 arranged on the same plane, and the two rows of straightening rollers 21 are staggered along the two sides of the capillary copper tube; the two groups of straightening roller groups are staggered at 90 degrees along the circumference of the capillary copper tube. For example, the straightening roller groups located in the front are all arranged along the vertical surface, so as to straighten the capillary copper tube in the vertical direction. The straightening roller groups located in the rear are all arranged along the horizontal plane, so as to straighten the capillary copper tube in the horizontal direction. Through the straightening in the vertical and horizontal directions, the copper tube is transformed from a coil into a straight tube. Of course, in order to improve the straightening effect, the straightening roller groups can also be arranged into multiple groups.
[0042] In addition, in order to adapt to capillary copper tubes of different diameters, the spacing between two rows of straightening rollers in the same straightening roller set can be adjusted. Specifically, the straightening roller 21 can be set on a support frame, and the support frame is connected to an adjusting bolt 22. Bearings are set at both ends of the rotating shaft of the straightening roller 21, and the bearings are installed on a bearing seat. The bearing seat is floatingly installed on the support frame, and a preload spring is set between the bearing seat and the support frame. The tightening direction of the adjusting bolt 22 on the bearing seat is opposite to the preload force of the spring, so that the position of the straightening roller 21 can be adjusted.
[0043] like Figure 5As shown, the travel drive mechanism 3 in the present invention includes a fixed clamp 31 and a movable clamp 32 that can move away from and approach the fixed clamp 31 along the travel direction of the capillary copper tube. In this embodiment, the movable clamp 32 is arranged in front of the fixed clamp 31; the movable clamp 32 clamps and pulls the capillary copper tube in the process of approaching the fixed clamp 31, and the movable clamp 32 releases the capillary copper tube in the process of moving away from the fixed clamp 31 and the capillary copper tube is clamped by the fixed clamp 31. In the process of the movable clamp 32 approaching the fixed clamp 31, only the movable clamp 32 clamps the capillary copper tube. This action realizes the pulling of the capillary copper tube, thereby providing power for the travel of the capillary copper tube. In the process of the movable clamp 32 moving away from the fixed clamp 31, the fixed clamp 31 clamps the capillary copper tube to prevent the capillary copper tube from retreating.
[0044] Specifically, the present embodiment further includes a guide post 34 arranged along the travel direction of the capillary copper tube, and a slider that can slide forward and backward along the guide post 34; the movable clamp 32 is mounted on the slider; and further includes a lead screw 33 arranged parallel to the guide post 34, the lead screw 33 is threadedly engaged with the slider and rotates to drive the slider to move along the guide post 34. The lead screw 33 can be driven by a motor or the like, so as to accurately control the movement of the movable clamp.
[0045] When the movable clamp 32 retreats to the position farthest from the fixed clamp 31, the distance between the two is large. Since the capillary copper tube itself has a certain weight, the capillary copper tube is easy to fall under the action of gravity, so that when the capillary copper tube is pulled, the force direction is inconsistent, resulting in the bending of the copper tube. In order to solve this problem, a dynamic guide sleeve 35 is provided between the fixed clamp 31 and the movable clamp 32 in the present invention; the dynamic guide sleeve 35 can move back and forth between the fixed clamp and the movable clamp, and its purpose is to support the capillary copper tube between the fixed clamp 31 and the movable clamp 32. The distance between the fixed clamp 31 and the movable clamp 32 changes dynamically. If the position of the guide sleeve does not change, it can only be set at a position close to the fixed clamp 31, which cannot play the role of supporting the capillary copper tube. If the position is far away from the fixed clamp 31, it will interfere with the operation of the movable clamp 32.
[0046] In order to solve this problem, a dynamic guide sleeve 35 is provided in the present invention, and the dynamic guide sleeve 35 can slide along the guide column 34. A sliding rod 36 parallel to the guide column 34 is provided on the side facing the movable clamp 32. The sliding rod 36 passes through the through hole on the slider, and an enlarged portion 361 is provided at the tail end of the sliding rod 36. The diameter of the enlarged portion 361 is larger than the through hole, so that when the slider slides to the enlarged portion 361 of the sliding rod 36, the dynamic guide sleeve 35 can be pulled to move.
[0047] After such arrangement, when the movable clamp 32 approaches the fixed clamp 31, the movable guide sleeve 35 is driven to move toward the fixed clamp 61, and no interference is caused to the movement of the movable clamp 32. When the movable clamp 32 moves away from the fixed clamp 31, the movable guide sleeve 35 can be pulled by the slide bar 36, so that the position of the movable guide sleeve 5 is located at a relatively middle position between the fixed clamp 31 and the movable clamp 32 (the specific position can be adjusted by the length of the slide bar 36), thereby achieving a better supporting effect.
[0048] like Figure 7 As shown, the cutting mechanism 5 in the present invention includes a clamping block 52 for clamping the capillary copper tube and an electric saw 51 for cutting the capillary copper tube; the clamping blocks are grouped into two oppositely arranged blocks, and two front and rear groups are arranged; a gap is left between the two groups of clamping blocks 52 for the electric saw to pass through; and a slide rail is also included, and the electric saw 51 is arranged on the slide rail and can move along the slide rail.
[0049] In this embodiment, the clamping blocks 52 of the same group are arranged in the left and right directions. After the electric saw cuts the capillary copper tube into sections, it naturally falls to the lowered receiving tray 6 by gravity. The receiving tray is arranged on the trolley 7, which is convenient for replacement after being full of materials.
[0050] like Figure 3 As shown, a cleaning mechanism 1 is arranged before the straightening mechanism 2 in the present invention; the cleaning mechanism 1 comprises a cleaning pipe 13 and an air duct 12 arranged in front and behind along the traveling direction of the capillary copper tube; the cleaning pipe 13 and the air duct 12 are both arranged along the traveling direction of the capillary copper tube; an oil spray port is opened on the side wall of the cleaning pipe 13, and an air jet port is opened on the side wall of the air duct 12. The capillary copper tube first passes through the cleaning pipe 13, and the stains on the outer wall are cleaned with cleaning oil. When passing through the air duct 12, the capillary copper tube is blown and washed with compressed air to remove the oil on the surface, so as to achieve the purpose of cleaning.
[0051] It can be foreseen that in order to cool the equipment, the present invention is also provided with a water cooler 8; in order to provide hydraulic pressure for driving devices such as cylinders, the present invention also includes a hydraulic station 9; in order to facilitate control, the present invention is provided with an electric control box 11; in order to facilitate operation, the present invention is provided with a touch screen 10.
[0052] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention, and the protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A capillary copper tube limiting ring forming machine, characterized in that: It includes a straightening mechanism, a limiting ring forming mechanism, and a cutting mechanism which are arranged in sequence from front to back; a travel driving mechanism for driving the capillary copper tube to travel is arranged between the straightening mechanism and the limiting ring forming mechanism; The limit ring forming mechanism includes a fixed clamping block group and a movable clamping block group arranged front and back along the traveling direction of the capillary copper tube; the movable clamping block group can move back and forth along the traveling 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 toward the fixed clamping block group so that the limit ring is squeezed out of the capillary copper tube.
2. The capillary copper tube limiting ring forming machine according to claim 1, characterized in that: The fixed clamping block group and the movable clamping block group both include two clamping blocks arranged opposite to each other along two sides of the capillary copper tube, and the two clamping blocks can be brought close to each other to clamp the capillary copper tube.
3. The capillary copper tube limiting ring forming machine according to claim 1, characterized in that: The fixed clamping block group and the movable clamping block group are both in two groups, and the two groups of fixed clamping blocks are arranged on the outside, and the two groups of movable clamping blocks are arranged on the inside.
4. The capillary copper tube limiting ring forming machine according to claim 1, characterized in that: The straightening mechanism includes at least two groups of straightening rollers, which include two rows of straightening rollers arranged on the same plane, and the two rows of straightening rollers are staggered along both sides of the capillary copper tube; the two groups of straightening rollers are staggered at 90 degrees along the circumference of the capillary copper tube.
5. The capillary copper tube limiting ring forming machine according to claim 4, characterized in that: The spacing between the two rows of straightening rollers is adjustable.
6. The capillary copper tube limiting ring forming machine according to claim 1, characterized in that: The travel driving mechanism includes a fixed clamp and a movable clamp that can move away from and approach the fixed clamp along the travel direction of the capillary copper tube; the movable clamp clamps and pulls the capillary copper tube when approaching the fixed clamp, and releases the capillary copper tube when moving away from the fixed clamp and the fixed clamp clamps the capillary copper tube.
7. A capillary copper tube limiting ring forming machine according to claim 6, characterized in that: It also includes a guide column arranged along the travel direction of the capillary copper tube, and a slider that can slide back and forth along the guide column; the movable clamp is installed on the slider; it also includes a lead screw arranged parallel to the guide column, the lead screw is threaded with the slider and drives the slider to move along the guide column by rotation.
8. The capillary copper tube limiting ring forming machine according to claim 7, characterized in that: A dynamic guide sleeve is arranged between the fixed clamp and the movable clamp; the dynamic guide sleeve can slide along the guide column, and a sliding rod parallel to the guide column is arranged on the side facing the movable clamp, the sliding rod passes through the through hole on the slider, and an enlarged part is arranged at the tail end of the sliding rod, and the diameter of the enlarged part is larger than the through hole, so that when the slider slides to the enlarged part of the sliding rod, the dynamic guide sleeve can be pulled to move.
9. The capillary copper tube limiting ring forming machine according to claim 1, characterized in that: The cutting mechanism includes a clamping block for clamping the capillary copper tube and an electric saw for cutting the capillary copper tube; the clamping blocks are grouped into two oppositely arranged blocks, and two front and rear groups are arranged; a gap is left between the two groups of clamping blocks for the electric saw to pass through; and also includes a slide rail, and the electric saw is arranged on the slide rail and can move along the slide rail.
10. The capillary copper tube limiting ring forming machine according to claim 1, characterized in that: A cleaning mechanism is arranged before the straightening mechanism; the cleaning mechanism includes a cleaning tube and an air duct arranged before and after along the traveling direction of the capillary copper tube; the cleaning tube and the air duct are both arranged along the traveling direction of the capillary copper tube; an oil injection port is opened on the side wall of the cleaning tube, and an air injection port is opened on the side wall of the air duct.