Capillary copper pipe stretching clamping end manufacturing device

Abstract

The utility model discloses a manufacturing device for a stretching clamping end of a capillary copper pipe. The manufacturing device comprises a feeding mechanism and a reducing forming mechanism. The hole shrinkage forming mechanism comprises a rotating base capable of rotating around the axis, and a radial through groove penetrating through the rotating base is formed in the rotating base. A left sliding die and a right sliding die are installed in the through groove and can slide along the through groove. Die cavities for reducing are formed in the adjacent surfaces of the left and right sliding dies; and a plurality of stop blocks are annularly distributed outside the rotating base, so that when the rotating base rotates, the sliding die sliding towards the outer side of the rotating base due to centrifugal force collides with the stop blocks and then slides towards the inner side of the rotating base. Feeding, forming and discharging are all automatically completed, the working efficiency and the machining quality are high, and the economic benefits of factories are improved.

Description

Technical Field

[0001] The utility model relates to a device for reducing the diameter of a capillary copper tube. 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 need to be expanded and formed with a stop ring. Some of the capillary copper tubes need to be stretched after expansion, and before stretching, the unexpanded end of the capillary copper tube needs to be reduced in diameter to form a clamping end during stretching.

[0004] The existing shrinking process is generally done manually, and it is difficult to ensure efficiency and quality. Utility Model Content

[0005] In view of this, the utility model provides a capillary copper tube stretching clamping end manufacturing device to realize the automation of capillary copper tube diameter reduction.

[0006] In order to solve the above technical problems, the technical solution of the utility model is to adopt a capillary copper tube stretching clamping end manufacturing device, including a feeding mechanism and a diameter reduction molding mechanism; the diameter reduction molding mechanism includes a rotating base that can rotate along the axis, and the rotating base is provided with a radial through groove that penetrates the rotating base; two left and right sliding molds are installed in the through groove, and both sliding molds can slide along the through groove; a mold cavity for diameter reduction is provided on the adjacent surfaces of the left and right sliding molds; a plurality of blocks are arranged in an annular shape on the outer side of the rotating base, so that when the rotating base rotates, the sliding mold that slides to the outside of the rotating base due to centrifugal force collides with the block and then slides to the inside of the rotating base.

[0007] As an improvement, the rotating base is circular, and the through slot is opened on a diameter of the rotating base.

[0008] As a further improvement, the stopper is cylindrical, and a plurality of the stoppers are evenly distributed along the circumference; the outer side of the sliding mold is an arc surface; and the gap between two adjacent stoppers is smaller than the width of the sliding mold.

[0009] As another further improvement, the mold cavity is in a tapered shape that is wide outside and narrow inside.

[0010] As an improvement, the loading mechanism includes a hopper for storing the capillary copper tubes to be processed, an alignment mechanism for positioning the capillary copper tubes, and a feeding mechanism for feeding the capillary copper tubes into the reducing mechanism for reducing the diameter; it also includes a movable tube clamp for transferring the capillary copper tubes between the alignment mechanism and the feeding mechanism.

[0011] As an improvement, the alignment mechanism includes a support frame, and baffles that can move forward and backward are arranged at both ends of the support frame. The two baffles can approach or move away from each other at the same time; and when the two baffles move to the closest position, the distance between them is consistent with the length of the capillary copper tube.

[0012] As an improvement, a material storage table is arranged between the hopper and the alignment mechanism, and the top surface of the material storage table is an inclined surface inclined toward one side of the alignment mechanism, so that when the capillary copper tube is located on the inclined surface, it can roll onto the alignment mechanism; a material fork is arranged between the material storage table and the hopper, and the discharge port of the hopper can only allow one capillary copper tube to pass through at the same time; the gap between the hopper and the material storage table is a slide for the material fork to pass through, and the width of the slide can only accommodate one capillary copper tube; the material fork can deliver the capillary copper tube rolling out of the discharge port to the top surface of the material storage table.

[0013] As an improvement, a material baffle plate is arranged above the material storage table, and the material baffle plate can move up and down.

[0014] As an improvement, the feeding device includes a fixed clamp located in front of the reduction molding mechanism and a movable clamp located between the reduction molding mechanism and the fixed clamp; the movable clamp can move back and forth between the fixed clamp and the reduction molding mechanism, thereby sending the capillary copper tube clamped on the fixed clamp to the reduction molding mechanism for reduction.

[0015] As an improvement, the fixed clamp and the movable clamp both include two clamping blocks arranged in the left and right directions, and the two clamping blocks can move closer to or farther away from each other, thereby clamping or loosening the capillary copper tube.

[0016] The utility model is beneficial in that:

[0017] The capillary copper tube stretching clamping end manufacturing device with the above structure feeds the material to the alignment mechanism through the material fork, and the axial position of the capillary copper tube is determined by the alignment mechanism. Then the capillary copper tube is sent to the feeding mechanism through the mobile tube clamp, and the capillary copper tube is sent to the diameter reduction forming mechanism through the feeding mechanism for diameter reduction.

[0018] The diameter reduction forming mechanism uses centrifugal force and the reaction force of the stopper to make the slide mold move back and forth continuously, thereby striking the end of the capillary copper tube to complete the diameter reduction work. The utility model automatically completes the whole process from loading, forming to unloading, has high work efficiency and processing quality, and improves the economic benefits of the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the diameter reduction forming mechanism.

[0020] Figure 2 Schematic diagram of the mold cavity.

[0021] Figure 3 It is a schematic diagram of the structure at the hopper.

[0022] Figure 4 It is a structural diagram of the alignment mechanism.

[0023] Figure 5 A top view of the feeding mechanism.

[0024] Figure 6 It is the front view of the feeding mechanism.

[0025] Markings in the figure: 1 reduction molding mechanism, 11 rotating base, 12 sliding mold, 13 mold cavity, 14 stopper, 21 hopper, 22 material fork, 23 material baffle plate, 24 material storage table, 25 support frame, 26 movable pipe clamp, 27 baffle plate, 28 fixed clamp, 29 movable clamp, 281 clamping block, 291 clamping block. DETAILED DESCRIPTION

[0026] 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.

[0027] like Figure 1 , Figure 2 As shown, the utility model provides a capillary copper tube stretching clamping end manufacturing device, including a feeding mechanism and a diameter reduction molding mechanism 1; the diameter reduction molding mechanism 1 includes a rotating base 11 that can rotate along the axis, and the rotating base 11 is provided with a radial through groove that penetrates the rotating base; two left and right sliding molds 12 are installed in the through groove, and both sliding molds 12 can slide along the through groove; a mold cavity 13 for diameter reduction is provided on the adjacent surface of the left and right sliding molds 12; a plurality of stoppers 14 are arranged in an outer ring of the rotating base 11, so that when the rotating base 11 rotates, the sliding mold 12 that slides to the outside of the rotating base 11 due to centrifugal force collides with the stopper 14 and then slides to the inside of the rotating base 11.

[0028] The principle of the utility model is that when the rotating base 11 rotates at a high speed, the sliding mold 12 will slide along the sliding groove to the outside of the rotating base 11 due to the centrifugal force, and when it slides to a certain position, it will collide with the stopper 14 on the outside of the rotating base 11, so that the sliding mold 12 is subjected to the reaction force and moves along the sliding groove toward the center of the rotating base 11. The end of the capillary copper tube to be processed extends along the axial direction of the rotating base 11 into the mold cavity 13, and is continuously hit by the two sliding molds 12 to complete the diameter reduction work.

[0029] In this embodiment, the rotating base 11 is circular, and the through slot is formed on a diameter of the rotating base 11. This ensures that the moving direction of the sliding mold 12 is consistent with the direction of the centrifugal force during the rotation process, thereby avoiding unnecessary friction.

[0030] In addition, the stopper 14 is cylindrical, and several stoppers 14 are evenly distributed along the circumference; the outer side of the slide 12 is an arc surface, so that the friction between the two is reduced during collision. The gap between two adjacent stoppers 14 is smaller than the width of the slide 12, so as to avoid the slide 12 being stuck between the two stoppers and causing equipment damage.

[0031] In this embodiment, the mold cavity 13 is a tapered shape with a wide outer side and a narrow inner side. When the capillary copper tube moves axially along the mold cavity 13, the diameter is gradually reduced to a required size.

[0032] like Figure 3 to Figure 6 As shown, the loading mechanism in the utility model includes a hopper 21 for storing capillary copper tubes to be processed, an alignment mechanism for positioning the capillary copper tubes, and a feeding mechanism for feeding the capillary copper tubes into the reducing mechanism 1 for reducing the diameter; it also includes a movable tube clamp 26 for transferring the capillary copper tubes between the alignment mechanism and the feeding mechanism.

[0033] like Figure 4 As shown, the alignment mechanism includes a support frame 25, and baffles 27 that can move forward and backward are arranged at both ends of the support frame 25. The two baffles 27 can approach or move away from each other at the same time; and when the two baffles 27 move to the closest position, the distance between them is consistent with the length of the capillary copper tube. When the capillary copper tube is placed on the support frame 25, the front and rear baffles 27 are close to the capillary copper tube at the same time to clamp it, so that the axial position of the capillary copper tube is determined, thereby ensuring that the size of the capillary copper tube sent by the feeding mechanism to the diameter reduction molding mechanism 1 is consistent.

[0034] like Figure 3 As shown, a material storage table 24 is arranged between the hopper 21 and the alignment mechanism, and the top surface of the material storage table 24 is an inclined surface inclined toward one side of the alignment mechanism, so that when the capillary copper tube is located on the inclined surface, it can roll onto the alignment mechanism; a material fork 22 is arranged between the material storage table 24 and the hopper 21, and the discharge port of the hopper 21 can only allow one capillary copper tube to pass through at the same time; the gap between the hopper 21 and the material storage table 24 is a slideway for the material fork 22 to pass through, and the width of the slideway can only accommodate one capillary copper tube; the material fork 22 can deliver the capillary copper tube rolling out of the discharge port to the top surface of the material storage table 24.

[0035] The capillary copper tubes on the material fork 22 that roll down from the material outlet of the hopper 21 can block the material outlet to prevent excess capillary copper tubes from rolling out. The width of the material fork 22 is consistent with the width of the slideway (the slideway is formed by the side walls of the material storage platform 24 and the side walls of the hopper 21). When the material fork 22 moves upward to feed the material to the material storage platform 24, the side walls of the material fork 22 can close the material outlet. The top surface of the material fork 22 is also an inclined surface. When the height of the material fork 22 exceeds the top surface of the material storage platform 24, the capillary copper tubes on it naturally roll down to the top surface of the material storage platform 24. The material fork 22 can be driven by a linear drive mechanism such as a cylinder or an oil cylinder, which is not limited in the utility model.

[0036] In addition, a baffle plate 23 is provided above the material storage platform 24, and the baffle plate 23 can move up and down. The baffle plate 23 is used to temporarily block the capillary copper tube on the material storage platform 24 to prevent it from rolling onto the support frame 25 of the alignment mechanism. After the capillary copper tube on the support frame 25 is transferred to the feeding mechanism, the baffle plate 23 moves upward to make the capillary copper tube roll onto the support frame 25, thereby improving work efficiency.

[0037] The feeding device in this embodiment includes a fixed clamp 28 located in front of the reduction molding mechanism 1 and a movable clamp 29 located between the reduction molding mechanism 1 and the fixed clamp 28; the movable clamp 29 can move back and forth between the fixed clamp 28 and the reduction molding mechanism 21, thereby sending the capillary copper tube clamped on the fixed clamp 28 to the reduction molding mechanism 1 for reduction.

[0038] The movable tube clamp 26 can translate left and right, and move up and down. The alignment mechanism and the feeding mechanism are arranged side by side, so the movable tube clamp 26 can send the aligned capillary copper tube on the support frame 25 to the fixed clamp 28 by translating left and right and moving up and down, and the fixed clamp 28 clamps it. The movable clamp 29 clamps the capillary copper tube again, and the fixed clamp 28 is released at this time, and the movable clamp 29 feeds the capillary copper tube to the diameter reduction molding mechanism 1, thereby completing the molding work. After the molding is completed, the movable clamp 29 drives the capillary copper tube to move toward the fixed clamp 28 and hands the processed capillary copper tube to the fixed clamp 28 for clamping, and then the movable tube clamp 26 sends it to the finished product box.

[0039] In this embodiment, the fixed clamping die 28 includes two clamping blocks 281 arranged in the left and right directions, and the movable clamping die 29 includes two clamping blocks 291 arranged in the left and right directions. The two clamping blocks 281 and the two clamping blocks 291 can be moved closer to or farther from each other, thereby clamping or releasing the capillary copper tube. The clamping blocks arranged in the left and right directions facilitate the movable tube clamp 26 to clamp the capillary copper tube from above.

[0040] 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. 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 stretching clamping end manufacturing device, characterized in that: It includes a feeding mechanism and a shrinking forming mechanism; the shrinking forming mechanism includes a rotating base that can rotate along the axis, and the rotating base is provided with a radial through groove that penetrates the rotating base; two left and right sliding molds are installed in the through groove, and both sliding molds can slide along the through groove; a mold cavity for shrinking is provided on the adjacent sides of the left and right sliding molds; a plurality of stoppers are arranged in an annular shape outside the rotating base, so that when the rotating base rotates, the sliding mold sliding toward the outside of the rotating base due to centrifugal force collides with the stopper and then slides toward the inside of the rotating base.

2. A capillary copper tube stretching clamping end manufacturing device according to claim 1, characterized in that: The rotating base is circular, and the through slot is arranged on a diameter of the rotating base.

3. The device for making a capillary copper tube stretching clamping end according to claim 1, characterized in that: The stopper is cylindrical, and a plurality of the stoppers are evenly distributed along the circumference; the outer side of the sliding mold is an arc surface; and the gap between two adjacent stoppers is smaller than the width of the sliding mold.

4. The device for making a capillary copper tube stretching clamping end according to claim 1, characterized in that: The mold cavity is in a tapered shape that is wide outside and narrow inside.

5. The device for making a capillary copper tube stretching clamping end according to claim 1, characterized in that: The loading mechanism includes a hopper for storing the capillary copper tube to be processed, an alignment mechanism for positioning the capillary copper tube, and a feeding mechanism for feeding the capillary copper tube into the diameter reduction mechanism for diameter reduction; and also includes a mobile tube clamp for transferring the capillary copper tube between the alignment mechanism and the feeding mechanism.

6. The device for making a capillary copper tube stretching clamping end according to claim 5, characterized in that: The alignment mechanism includes a support frame, and baffles that can move forward and backward are arranged at both ends of the support frame. The two baffles can approach or move away from each other at the same time; and when the two baffles move to the closest position, the distance between them is consistent with the length of the capillary copper tube.

7. The device for making a capillary copper tube stretching clamping end according to claim 5, characterized in that: A material storage platform is arranged between the hopper and the alignment mechanism, and the top surface of the material storage platform is an inclined surface inclined toward one side of the alignment mechanism, so that when the capillary copper tube is located on the inclined surface, it can roll onto the alignment mechanism; a material fork is arranged between the material storage platform and the hopper, and the discharge port of the hopper can only allow one capillary copper tube to pass through at the same time; the gap between the hopper and the material storage platform is a slideway for the material fork to pass through, and the width of the slideway can only accommodate one capillary copper tube; the material fork can deliver the capillary copper tube rolling out of the discharge port to the top surface of the material storage platform.

8. The device for making a capillary copper tube stretching clamping end according to claim 7, characterized in that: A material baffle plate is arranged above the material storage platform, and the material baffle plate can move up and down.

9. The device for making a capillary copper tube stretching clamping end according to claim 5, characterized in that: The feeding mechanism includes a fixed clamp located in front of the diameter reduction molding mechanism and a movable clamp located between the diameter reduction molding mechanism and the fixed clamp; the movable clamp can move back and forth between the fixed clamp and the diameter reduction molding mechanism, thereby sending the capillary copper tube clamped on the fixed clamp to the diameter reduction molding mechanism for diameter reduction.

10. The device for making a capillary copper tube stretching clamping end according to claim 9, characterized in that: The fixed clamping die and the movable clamping die both include two clamping blocks arranged in the left and right directions. The two clamping blocks can move closer to or farther away from each other, thereby clamping or releasing the capillary copper tube.

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