Semi-automatic capillary copper pipe flaring forming device

Abstract

The utility model discloses a semi-automatic capillary copper pipe flaring forming device. The semi-automatic capillary copper pipe flaring forming device comprises a punch used for flaring forming and a clamp used for clamping a capillary copper pipe to be machined. The punch is fixed on a chuck, and the chuck can move up and down under the driving of a driving mechanism; the clamp comprises two clamping blocks which are arranged left and right, one of the two clamping blocks is a fixed clamping block, and the other one is a movable clamping block; the movable clamping block can be close to the fixed clamping block so as to clamp a capillary copper pipe to be machined. The movable clamping block can be driven by a linear driving device II; the automatic flaring machine further comprises a synchronous control switch, and the control switch is electrically connected with the linear driving device I and the linear driving device II, so that the linear driving device I and the linear driving device II move synchronously, and the clamp clamps synchronously when the punch conducts flaring forming. Downward pressing flaring and clamping of the clamp are executed synchronously, and operation steps are simplified.

Description

Technical Field

[0001] The utility model belongs to the technical field of capillary copper tube processing, in particular to a semi-automatic capillary copper tube expanding and forming device. 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 flared 200 to be connected to the condenser tube, such as Figure 1 As shown in the figure, the existing capillary copper tube expansion is done manually, and both the processing quality and efficiency are relatively low. Utility Model Content

[0004] In view of this, the utility model provides a semi-automatic capillary copper tube expansion and forming device, which can realize the semi-automatic expansion and forming of the capillary copper tube.

[0005] In order to solve the above technical problems, the technical solution of the utility model is to adopt a semi-automatic capillary copper tube expansion and forming device, which is characterized by: comprising a punch for expansion and forming and a clamp for clamping the capillary copper tube to be processed; the punch is fixed on a chuck, and the chuck can move up and down under the drive of a driving mechanism; the driving mechanism includes a gear I and a rack I that mesh with each other; the rack I is connected to the chuck by a connecting rod; and also includes a gear II coaxially arranged with the gear I, the gear II meshes with the rack II; the rack II is driven by a linear drive device I;

[0006] The fixture comprises two clamping blocks arranged on the left and right, one of which is a fixed clamping block and the other is a movable clamping block; the movable clamping block can approach the fixed clamping block to clamp the capillary copper tube to be processed; the movable clamping block can be driven by a linear drive device II;

[0007] It also includes a synchronous control switch, which is electrically connected to the linear drive device I and the linear drive device II, so that the linear drive device I and the linear drive device II move synchronously, so that the clamp is clamped synchronously when the punch is expanding and forming.

[0008] As an improvement, the punch is rod-shaped, and its front working portion is a pointed tip.

[0009] As a further improvement, the rack I is arranged vertically and also includes a guiding mechanism for guiding the rack I; the rack I and the gear I are arranged inside the machine head; and the rack II is arranged horizontally outside the machine head.

[0010] As another further improvement, the machine head is connected to the base using a retractable column; the punch and the drive device are arranged on the machine head.

[0011] As an improvement, the linear drive mechanism I and the linear drive mechanism II are cylinders, and both are supplied with air by the same air compressor.

[0012] As an improvement, a guide column is provided between the fixed clamping block and the movable clamping block.

[0013] As an improvement, it also includes a C-shaped inner limit mounting seat, and the clamp is arranged inside the inner limit mounting seat; a pad is filled between the fixed clamping block and the inner wall of the inner limit mounting seat, so that after the clamp is closed, the capillary copper tube to be processed is opposite the punch; it also includes a C-shaped outer limit mounting seat, and the inner limit mounting seat and the linear drive mechanism II are arranged inside the outer limit mounting seat, and the relative position of the inner limit mounting seat in the outer limit mounting seat is adjustable; the outer limit mounting seat is fixed on the base.

[0014] As an improvement, a clamping die is detachably mounted on the clamping block, and a clamping groove is provided on the clamping die.

[0015] As an improvement, the base is provided with an opening at the clamp, and a height-adjustable support platform is provided below the base and opposite to the opening.

[0016] As an improvement, the synchronous control switch is a foot pedal.

[0017] The utility model is beneficial in that:

[0018] The semi-automatic capillary copper tube expansion and forming device with the above structure is obtained by modifying the traditional semi-automatic punching machine, eliminating the pull handle and providing a gear II coaxial with the gear I, and then providing a rack II to mesh with the gear II, and driving the gear II to rotate by driving the rack II, thereby driving the gear I to drive the rack I to move, so that the chuck fixedly connected to the rack I drives the punch to press down to complete the expansion and forming work.

[0019] The rack II is driven by the linear drive mechanism I, and the clamp in the utility model is also driven by the linear drive mechanism II. In order to further simplify the manual operation, the linear drive mechanism I and the linear drive mechanism II in the utility model are synchronously controlled by the same synchronous control switch, so that the downward expansion and the clamp clamping are synchronously executed, simplifying the operation steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the limiting ring and the flaring part.

[0021] Figure 2 It is a side view of the utility model.

[0022] Figure 3 It is a front view of the utility model.

[0023] Figure 4 A top view of the fixture.

[0024] Markings in the figure: 1 head, 2 column, 3 base, 4 punch, 5 chuck, 6 gear II, 7 rack II, 8 linear drive device I, 9 support table, 10 gear I, 11 rack I, 12 guide mechanism, 13 external limit mounting seat, 14 linear drive device II, 15 movable clamping block, 16 fixed clamping block, 17 cushion block, 18 internal limit mounting seat, 19 guide column, 20 clamping die, 200 flaring part. DETAILED DESCRIPTION

[0025] 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.

[0026] like Figure 2 , Figure 3 As shown, the utility model provides a semi-automatic capillary copper tube expansion and forming device, comprising a punch 4 for expansion and forming and a fixture for clamping the capillary copper tube to be processed; the punch 4 is fixed on a chuck 5, and the chuck 4 can move up and down under the drive of a driving mechanism; the driving mechanism comprises a gear I10 and a rack I11 that mesh with each other; the rack I11 is connected to the chuck 4 by a connecting rod; and also comprises a gear II6 coaxially arranged with the gear I10, the gear II6 meshes with the rack II7; the rack II7 is driven by a linear drive device I8;

[0027] The fixture includes two clamping blocks arranged on the left and right, one of which is a fixed clamping block 16 and the other is a movable clamping block 15; the movable clamping block 15 can approach the fixed clamping block to clamp the capillary copper tube to be processed; the movable clamping block 15 can be driven by a linear drive device II14;

[0028] It also includes a synchronous control switch, which is electrically connected to the linear drive device I8 and the linear drive device II14, so that the linear drive device I8 and the linear drive device II14 move synchronously, thereby allowing the clamp to be clamped synchronously when the punch 4 is expanding and forming.

[0029] The utility model is modified from a traditional semi-automatic punching machine. The traditional semi-automatic punching machine is provided with a pull handle for driving the gear I10 to rotate. When punching is required, the pull handle is manually pulled to drive the gear I10 to rotate and drive the rack I11 to move linearly, so that the punch used for punching is pressed down to complete the punching work. During operation, the worker needs to pull the pull handle with one hand and load the material with the other hand, which is very inconvenient to use and seriously affects the work efficiency.

[0030] The utility model modifies a traditional semi-automatic punching machine, cancels the pull handle and provides a gear II6 coaxial with the gear I10, then provides a rack II7 to mesh with the gear II6, and drives the gear II6 to rotate by driving the rack II7, thereby driving the gear I10 to drive the rack I11 to move, so that the chuck 5 fixedly connected to the rack I11 drives the punch 4 to press down to complete the expansion forming work.

[0031] The rack II7 is driven by the linear drive mechanism I8, and the clamp in the utility model is also driven by the linear drive mechanism II14. In order to further simplify manual operation, the linear drive mechanism I8 and the linear drive mechanism II14 in the utility model are synchronously controlled by the same synchronous control switch, so that the downward expansion and the clamp clamping are performed synchronously, simplifying the operation steps. In order to further free the operator's hands, the synchronous control switch in this embodiment is a foot pedal, which controls the linear drive mechanism I8 and the linear drive mechanism II14 by foot pedaling.

[0032] More specifically, the linear drive mechanism I8 and the linear drive mechanism II14 are cylinders, both of which are supplied with air by the same air compressor.

[0033] In this embodiment, the rack I11 is arranged vertically, and also includes a guide mechanism 12 for guiding the rack I11; the rack I11 and the gear 10 are arranged inside the machine head 1; the rack II7 is arranged horizontally outside the machine head 1. The reason for such arrangement is that the utility model is based on the modification of traditional equipment, and the space inside the machine head 1 is relatively cramped and it is impossible to set a linear drive device to drive the rack I11, so the rack II7, the gear II6 and the linear drive device I8 are all arranged outside the machine head 1.

[0034] The punch 4 in the utility model is rod-shaped, and its front working part is a tip. It is foreseeable that the diameter of the punch 4 is the inner diameter of the capillary copper tube that needs to be expanded. In addition, the punch 4 has a variety of specifications and can be adaptively replaced according to the specifications of the capillary copper tube. The chuck 5 is used to clamp the punch and is easy to disassemble and replace.

[0035] In order to position the fixture so that the clamped capillary copper tube is aligned with the punch 4, the utility model further includes a C-shaped inner limit mounting seat 18, in which the fixture is arranged; a pad 17 is filled between the fixed clamping block 16 and the inner wall of the inner limit mounting seat 18, so that after the fixture is closed, the capillary copper tube to be processed is aligned with the punch; a C-shaped outer limit mounting seat 13 is further included, in which the inner limit mounting seat 18 and the linear drive mechanism II14 are arranged in the outer limit mounting seat 13, and the relative position of the inner limit mounting seat 18 in the outer limit mounting seat 13 is adjustable; the outer limit mounting seat 13 is fixed on the base 3. The machine head 1 is connected to the base 3 by a retractable column 2; the punch 4 and the drive device are arranged on the machine head 1.

[0036] The left-right position of the clamp in the inner limit mounting seat 18 can be adjusted by pads 17 of different thicknesses, and the front-back position of the inner limit mounting seat 18 in the outer limit mounting seat 13 can be adjusted by adjusting bolts, so that the position of the clamp on the horizontal plane can be adjusted.

[0037] In order to prevent the movable clamping block 15 from running off, a guide column 19 is provided between the fixed clamping block 16 and the movable clamping block 15. In order to adapt to the clamping of different types of capillary copper tubes, a clamping die 20 is detachably mounted on the clamping block, and a clamping groove is provided on the clamping die 20. It can be foreseen that when the clamp is closed, the clamping groove is assembled into a shape consistent with the shape of the capillary copper tube.

[0038] In addition, in order to ensure the position of the capillary copper tube in the up and down directions, the base 1 is provided with an opening at the fixture, and a height-adjustable support platform 9 is provided below the base 1 opposite to the opening, and the bottom of the copper tube is limited by the support platform 9.

[0039] 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 semi-automatic capillary copper tube expansion forming device, characterized in that: It includes a punch for expanding and forming and a fixture for clamping a capillary copper tube to be processed; the punch is fixed on a chuck, and the chuck can move up and down under the drive of a driving mechanism; the driving mechanism includes a gear I and a rack I that mesh with each other; The rack I is connected to the chuck by a connecting rod; and further comprises a gear II coaxially arranged with the gear I, the gear II meshing with the rack II; The rack II is driven by a linear drive device I; The fixture comprises two clamping blocks arranged on the left and right, one of which is a fixed clamping block and the other is a movable clamping block; the movable clamping block can approach the fixed clamping block to clamp the capillary copper tube to be processed; the movable clamping block can be driven by a linear drive device II; It also includes a synchronous control switch, which is electrically connected to the linear drive device I and the linear drive device II, so that the linear drive device I and the linear drive device II move synchronously, so that the clamp is clamped synchronously when the punch is expanding and forming.

2. A semi-automatic capillary copper tube expansion and forming device according to claim 1, characterized in that: The punch is rod-shaped, and its front working portion is a tip.

3. A semi-automatic capillary copper tube expansion and forming device according to claim 1, characterized in that: The rack I is arranged vertically and also includes a guiding mechanism for guiding the rack I; the rack I and the gear I are arranged inside the machine head; the rack II is arranged horizontally outside the machine head.

4. A semi-automatic capillary copper tube expansion and forming device according to claim 3, characterized in that: The machine head is connected to the base by a telescopic column; the punch and the driving device are arranged on the machine head.

5. A semi-automatic capillary copper tube expansion and forming device according to claim 1, characterized in that: The linear drive device I and the linear drive device II are cylinders, and both are supplied with air by the same air compressor.

6. A semi-automatic capillary copper tube expansion and forming device according to claim 1, characterized in that: A guide column is arranged between the fixed clamping block and the movable clamping block.

7. A semi-automatic capillary copper tube expansion and forming device according to claim 1, characterized in that: It also includes a C-shaped inner limit mounting seat, and the clamp is arranged inside the inner limit mounting seat; a pad is filled between the fixed clamping block and the inner wall of the inner limit mounting seat, so that after the clamp is closed, the capillary copper tube to be processed is opposite to the punch; it also includes a C-shaped outer limit mounting seat, and the inner limit mounting seat and the linear drive device II are arranged inside the outer limit mounting seat, and the relative position of the inner limit mounting seat in the outer limit mounting seat is adjustable; the outer limit mounting seat is fixed on the base.

8. A semi-automatic capillary copper tube expansion and forming device according to claim 7, characterized in that: A clamping die is detachably mounted on the clamping block, and a clamping groove is provided on the clamping die.

9. A semi-automatic capillary copper tube expansion and forming device according to claim 7, characterized in that: The base is provided with an opening at the clamp, and a height-adjustable support platform is provided below the base and opposite to the opening.

10. A semi-automatic capillary copper tube expansion and forming device according to claim 1, characterized in that: The synchronous control switch is a foot pedal.

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