Disc cutter stable and efficient cutting forming machine tool for automobile harmonica tube

Abstract

The application discloses a disc cutter stable and efficient cutting forming machine tool for an automobile harmonica pipe and relates to the technical field of metal cutting forming machine tools.The machine tool comprises a bearing mechanism, a positioning mechanism and a shearing mechanism.The bearing mechanism comprises a first sliding rail, a first base, a first hydraulic oil cylinder, a first rotary motor, a bearing disc and a locking cylinder, and the first base is slidingly connected to the first sliding rail.The positioning mechanism comprises a pushing module, and the pushing module comprises a mounting bracket, a second rotary motor, a driving gear, a rack and a pushing plate, and the mounting bracket is fixedly installed on the bearing disc.The shearing mechanism comprises a driving box, a second sliding rail and a second hydraulic oil cylinder, the driving box is slidingly connected to the second sliding rail, the piston rod end of the second hydraulic oil cylinder is fixedly installed on the driving box, and the driving box is provided with a first rotary shaft and a second rotary shaft which are arranged in parallel.Compared with the prior art, the machine tool solves the problems of inconsistent cutting quality of the two ends of the harmonica pipe of the existing new energy automobile harmonica pipe condenser and low shearing efficiency.

Description

Technical Field

[0001] This invention relates to the field of metal cutting and forming machine tool technology, and in particular to a disc cutter for stable and efficient cutting and forming of automotive harmonica tubes. Background Technology

[0002] The harmonica tube condenser is a core heat dissipation component in automotive air conditioning systems. Its name comes from its internal structure, which consists of multiple layers of flat microchannel tubes arranged in parallel (resembling harmonica reeds). The harmonica tube condenser contains 20-60 flat microchannel tubes (i.e., harmonica tubes) approximately 2mm thick arranged in parallel. The harmonica tubes have tiny flow channels inside, and corrugated aluminum fins are embedded between the tubes to increase the surface area and improve heat dissipation efficiency.

[0003] Because new energy vehicles lack the waste heat from traditional gasoline engines, they rely entirely on heat pump air conditioning for heating in winter, requiring the condenser to perform a dual role of cooling and heating. Therefore, the harmonica tube condenser has become an essential core hardware component for new energy vehicles.

[0004] In the processing of harmonica tubes in the harmonica tube condenser, the disc cutter is mainly used for the "cut to length" step, which is to cut the shaped and corrected tube into the final required precise length, and can achieve a neat, precise, and burr-free cutting effect.

[0005] In the current process of cutting harmonica tubes to a fixed length, one end is usually used as the reference for cutting, which results in inconsistent end face quality at both ends of the tube, affecting the assembly quality of the subsequent harmonica tube condenser. Summary of the Invention

[0006] The purpose of this invention is to provide a stable and efficient disc cutter for forming automotive harmonica tubes, in order to solve the problems of inconsistent cutting quality and low shearing efficiency at both ends of the harmonica tubes in existing new energy vehicle harmonica tube condensers.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a disc cutter for stable and efficient cutting and forming of automotive harmonica tubes, comprising:

[0008] The supporting mechanism includes a first slide rail, a first base, a first hydraulic cylinder, a first rotary motor, a carrier plate, and a locking cylinder. The first base is slidably connected to the first slide rail. The piston rod end of the first hydraulic cylinder is fixedly installed on the first base. The first rotary motor is fixedly installed on the first base. The motor shaft of the first rotary motor passes through the top surface of the first base and is fixedly connected to the carrier plate. The carrier plate is provided with a locking hole. The locking cylinder is fixedly installed on the first base. The piston rod of the locking cylinder passes through the top surface of the first base and extends into the locking hole. The carrier plate is provided with two tube positioning grooves. The two tube positioning grooves are symmetrically arranged along the center of the motor shaft of the first rotary motor. The harmonica tube is placed in the tube positioning groove.

[0009] The positioning mechanism includes a pushing module, which includes a mounting bracket, a second rotary motor, a drive gear, a rack, and a push plate. The mounting bracket is fixedly mounted on the carrier plate, and the second rotary motor is fixedly mounted on the mounting bracket. The motor shaft of the second rotary motor passes through the mounting bracket and connects to the drive gear. The drive gear has symmetrically arranged racks on both sides, and the drive gear meshes with the racks. The push plate is slidably connected in the positioning groove of the tube body, and the end of the rack is fixedly connected to the push plate through a connecting plate.

[0010] The shearing mechanism includes a drive box, a second slide rail, and a second hydraulic cylinder. The drive box is slidably connected to the second slide rail. The piston rod end of the second hydraulic cylinder is fixedly installed on the drive box. The drive box is provided with a first rotating shaft and a second rotating shaft arranged in parallel. A first disc cutter is fixedly installed on the first rotating shaft, and a second disc cutter is fixedly installed on the second rotating shaft.

[0011] As a further description of the above technical solution:

[0012] The piston rod end of the first hydraulic cylinder is fixedly mounted on the connecting bracket, which is Y-shaped. A connecting seat is provided on the end of the connecting bracket facing the first base, and the connecting seat is fixedly mounted on the first base.

[0013] As a further description of the above technical solution:

[0014] The positioning mechanism also includes a clamping module, which includes a third rotary motor, a tilting frame, a fourth rotary motor, and a clamping component. The third rotary motor is fixedly mounted on the carrier plate, the tilting frame is fixedly mounted on the motor shaft of the third rotary motor, the fourth rotary motor is fixedly mounted on the tilting frame, and the motor shaft of the fourth rotary motor passes through the tilting frame and connects to the clamping component, which contacts the upper surface of the harmonica tube.

[0015] As a further description of the above technical solution:

[0016] The clamping element is a rubber roller.

[0017] As a further description of the above technical solution:

[0018] The side wall of the clamping component contacts the harmonica tube, and several circumferentially arranged ribs are provided on the side wall of the clamping component.

[0019] As a further description of the above technical solution:

[0020] The push plate has an "L" shaped cross-section.

[0021] As a further description of the above technical solution:

[0022] The rack is slidably connected to the carrier plate.

[0023] As a further description of the above technical solution:

[0024] The rack has a slotted hole, and the carrier plate has a positioning pin that corresponds to the slotted hole. The positioning pin extends into the slotted hole.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] 1. In this invention, during the processing of the harmonica tube in the harmonica tube condenser of a new energy vehicle, the two harmonica tubes in the bearing mechanism are cut at both ends through the cooperation of the positioning mechanism and the shearing mechanism to adjust the length so that both ends of the harmonica tube are cut by the disc shear, thus solving the problems of inconsistent cutting quality and low shearing efficiency at both ends of the harmonica tube in the existing new energy vehicle harmonica tube condenser.

[0027] 2. In this invention, the sliding of the push plate in the positioning groove of the tube body in the positioning mechanism can not only control the length of the first end of the harmonica tube after cutting and reserve the length for the second end of the harmonica tube, but also adjust the initial position in the positioning groove of the tube body. It can cooperate with the shearing mechanism to cut harmonica tubes of different lengths to meet the processing requirements of harmonica tube condensers of different sizes and specifications. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a machine tool for stable and efficient cutting and forming of automotive harmonica tubes using a disc cutter.

[0030] Figure 2 This is a schematic diagram of the load-bearing mechanism in a disc cutter machine tool for the stable and efficient cutting and forming of automotive harmonica tubes.

[0031] Figure 3 A schematic diagram of the positioning mechanism in a machine tool for stable and efficient cutting of automotive harmonica tubes using a disc cutter. Figure 1 .

[0032] Figure 4 A schematic diagram of the positioning mechanism in a machine tool for stable and efficient cutting of automotive harmonica tubes using a disc cutter. Figure 2 .

[0033] Figure 5 A schematic diagram of the positioning mechanism in a machine tool for stable and efficient cutting and forming of a car harmonica tube using a disc cutter. Figure 3 .

[0034] Legend:

[0035] 1. Bearing mechanism; 11. First slide rail; 12. First base; 13. First hydraulic cylinder; 131. Connecting bracket; 14. First rotary motor; 15. Carrier plate; 151. Locking hole; 152. Tube positioning groove; 153. Positioning pin; 16. Locking cylinder; 2. Positioning mechanism; 21. Mounting bracket; 22. Second rotary motor; 23. Drive gear; 24. Rack; 241. Waist-shaped hole; 25. Push plate; 26. Third rotary motor; 27. Tilting frame; 28. Fourth rotary motor; 29. ​​Clamping component; 291. Rib; 3. Shearing mechanism; 31. Drive box; 311. First rotating shaft; 312. First disc cutter; 32. Second slide rail; 33. Second hydraulic cylinder; 9. Harmonica tube. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention. Example 1

[0038] Please see Figure 1-5 This invention provides a technical solution: a disc cutter for stable and efficient cutting and forming of automotive harmonica tubes, comprising:

[0039] The supporting mechanism 1 includes a first slide rail 11, a first base 12, a first hydraulic cylinder 13, a first rotary motor 14, a carrier plate 15, and a locking cylinder 16. The first base 12 is slidably connected to the first slide rail 11. The piston rod end of the first hydraulic cylinder 13 is fixedly installed on the first base 12. The first rotary motor 14 is fixedly installed on the first base 12. The motor shaft of the first rotary motor 14 passes through the top surface of the first base 12 and is fixedly connected to the carrier plate 15. The carrier plate 15 is provided with a locking hole 151. The locking cylinder 16 is fixedly installed on the first base 12. The piston rod of the locking cylinder 16 passes through the top surface of the first base 12 and extends into the locking hole 151. The carrier plate 15 is provided with two tube positioning grooves 152. The two tube positioning grooves 152 are symmetrically arranged along the center of the motor shaft of the first rotary motor 14. The harmonica tube 9 is placed in the tube positioning groove 152.

[0040] The positioning mechanism 2 includes a pushing module, which includes a mounting bracket 21, a second rotary motor 22, a drive gear 23, a rack 24, and a push plate 25. The mounting bracket 21 is fixedly mounted on the carrier plate 15, and the second rotary motor 22 is fixedly mounted on the mounting bracket 21. The motor shaft of the second rotary motor 22 passes through the mounting bracket 21 and is connected to the drive gear 23. The drive gear 23 has symmetrically arranged racks 24 on both sides, and the drive gear 23 meshes with the racks 24. The push plate 25 is slidably connected in the tube positioning groove 152, and the end of the rack 24 is fixedly connected to the push plate 25 through a connecting plate.

[0041] The shearing mechanism 3 includes a drive box 31, a second slide rail 32, and a second hydraulic cylinder 33. The drive box 31 is slidably connected to the second slide rail 32. The piston rod end of the second hydraulic cylinder 33 is fixedly installed on the drive box 31. The drive box 31 is provided with a first rotating shaft 311 and a second rotating shaft arranged in parallel. A first disc cutter 312 is fixedly installed on the first rotating shaft 311, and a second disc cutter is fixedly installed on the second rotating shaft. The drive box 31 is provided with a first driving device and a second driving device. The first driving device and the second driving device drive the first rotating shaft 311 and the second rotating shaft to work, respectively. The specific values ​​of the blade clearance and blade overlap of the first disc cutter 312 and the second disc cutter are tested using multiple harmonica tubes 9 and set according to the cutting quality.

[0042] In the processing of the harmonica tube 9 in the harmonica tube condenser of new energy vehicles, the two harmonica tubes 9 in the bearing mechanism 1 are cut at both ends through the cooperation of the positioning mechanism 2 and the shearing mechanism 3 to adjust the length so that both ends of the harmonica tube are cut by the disc shear, thus solving the problems of inconsistent cutting quality and low shearing efficiency at both ends of the harmonica tube in the existing harmonica tube condenser of new energy vehicles.

[0043] The sliding of the push plate 25 in the positioning mechanism 2 within the tube positioning groove 152 can not only control the length of the first end of the harmonica tube 9 after cutting and reserve the length for the second end of the harmonica tube 9, but also adjust the initial position within the tube positioning groove 152. This can be combined with the shearing mechanism 3 to cut harmonica tubes of different lengths, meeting the processing requirements of harmonica tube condensers of different sizes and specifications.

[0044] The cross-section of the push plate 25 is L-shaped. The bent edge at the upper end of the push plate 25 presses against the end of the harmonica tube 9, improving the positioning effect of the harmonica tube 9 and ensuring the cutting quality.

[0045] Working principle: When the harmonica tubes 9 are cut to a fixed length, the two harmonica tubes 9 are first placed in the tube positioning groove 152 of the carrier plate 15. At this time, the push plate 25 in the tube positioning groove 152 is in the initial position, and the piston rod of the locking cylinder 16 passes through the top surface of the first base 12 and extends into the locking hole 151 to lock the position of the carrier plate 15.

[0046] The two harmonica tubes 9 on the carrier 15 undergo first end cutting. The piston rod of the first hydraulic cylinder 13 drives the first base 12 and the carrier 15 to move along the first slide rail 11. One of the harmonica tubes 9 passes between the first disc cutter 312 and the second disc cutter of the cutting mechanism 3. The part of the harmonica tube 9 that extends beyond the first disc cutter 312 and the second disc cutter is cut off. Then, the drive box 31 retracts along the second slide rail 32 to avoid a position. The piston rod of the locking cylinder 16 moves down to unlock the carrier 15. The first rotary motor 14 drives the carrier 15 to rotate 180 degrees. Then, the drive box 31 moves and resets, and in the process, the cut harmonica tube 9 is taken out, turned around and put back. The second end of the cut harmonica tube 9 is adjusted to face the outside of the carrier plate 15. Then the piston rod of the first hydraulic cylinder 13 pushes the first base 12 and the carrier plate 15 to move towards the drive box 31, so that the other uncut harmonica tube 9 passes between the first disc cutter 312 and the second disc cutter and is cut. At this time, the length of the two harmonica tubes is L+L1, where L is the target length and L1 is the reserved cutting length for the second end.

[0047] When the two harmonica tubes 9 on the carrier plate 15 are being cut at their second ends, the carrier plate 15 is unlocked again and rotated 180 degrees to reset and then locked, so that the harmonica tube 9 whose second end orientation has been adjusted is aligned with the first disc cutter 312 and the second disc cutter. At this time, the second end of the other harmonica tube 9 is adjusted to face outward. Then, the second rotary motor 22 drives the rack 24 to slide horizontally through the drive gear 23, so that the rack 24 drives the push plate 25 through the connecting plate. The two push plates 25 push the harmonica tube 9 outward at the same time. The length of the harmonica tube 9 extending beyond the first disc cutter 312 and the second disc cutter is L1. The above cutting process is repeated to complete the second end cutting. Example 2

[0048] Based on the above embodiments, this embodiment further improves upon the following technical solution: the piston rod end of the first hydraulic cylinder 13 is fixedly mounted on the connecting bracket 131, which is Y-shaped. A connecting seat is provided on the end of the connecting bracket 131 facing the first base 12, and the connecting seat is fixedly mounted on the first base 12, so that the piston rod of the first hydraulic cylinder 13 can drive the first base 12 to slide smoothly through the connecting bracket 131. Example 3

[0049] Based on the above embodiments, this embodiment further improves upon the following technical solutions: the positioning mechanism 2 also includes a clamping module, which includes a third rotary motor 26, a flipping frame 27, a fourth rotary motor 28, and a clamping member 29. The third rotary motor 26 is fixedly mounted on the carrier plate 15, the flipping frame 27 is fixedly mounted on the motor shaft of the third rotary motor 26, the fourth rotary motor 28 is fixedly mounted on the flipping frame 27, and the motor shaft of the fourth rotary motor 28 passes through the flipping frame 27 and connects to the clamping member 29. The clamping member 29 contacts the upper surface of the harmonica tube 9.

[0050] The harmonica tube 9 on the carrier plate 15 is positioned by the clamping member 29 of the clamping module. The harmonica tube 9 is pressed into the groove of the carrier plate 15 to prevent the harmonica tube 9 from shifting its position during cutting or rotation. When the harmonica tube 9 is unloaded or its direction is adjusted, the clamping member 29 rotates the flipping frame 27 through the third rotary motor 26 and disengages from the harmonica tube 9 as the flipping frame 27 rotates. Example 4

[0051] Based on the above embodiments, this embodiment further improves upon the following technical solution: the clamping member 29 is a rubber roller, and the side wall of the clamping member 29 contacts the harmonica tube 9. Several circumferentially arranged ribs 291 are provided on the side wall of the clamping member 29.

[0052] The clamping member 29 of the rubber roller can not only ensure the fit of the harmonica tube 9 through the rib 291 to ensure the clamping effect, but also use the friction between the clamping member 29 and the harmonica tube 9 so that when the fourth rotary motor 28 rotates the clamping member 29, the harmonica tube 9 is carried along a straight line. After the first end is cut, the harmonica tube 9 can be pushed out by the clamping member 29 for a while before being unlocked and clamped, which makes it easier to adjust the direction of the harmonica tube 9. At the same time, the clamping member 29's ability to adjust the position of the harmonica tube 9 can further precisely adjust the position of the harmonica tube 9 based on the push plate 25. Example 5

[0053] This embodiment further improves upon the above embodiment by providing the following technical solution: the rack 24 is slidably connected to the carrier plate 15. Specifically, the rack 24 is provided with a waist-shaped hole 241, and the carrier plate 15 is provided with a positioning pin 153 corresponding to the waist-shaped hole 241, the positioning pin 153 extending into the waist-shaped hole 241.

[0054] The two oblong holes 241 on the rack 24 are limited by two positioning pins 153, which control the smooth movement of the rack 24 and the maximum stroke, and prevent the harmonica tube 9 from being accidentally pushed out due to excessive movement of the rack 24, thus protecting the harmonica tube 9.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A disc cutter for stable and efficient cutting and forming of automotive harmonica tubes, characterized in that, include: The supporting mechanism includes a first slide rail, a first base, a first hydraulic cylinder, a first rotary motor, a carrier plate, and a locking cylinder. The first base is slidably connected to the first slide rail. The piston rod end of the first hydraulic cylinder is fixedly installed on the first base. The first rotary motor is fixedly installed on the first base. The motor shaft of the first rotary motor passes through the top surface of the first base and is fixedly connected to the carrier plate. The carrier plate is provided with a locking hole. The locking cylinder is fixedly installed on the first base. The piston rod of the locking cylinder passes through the top surface of the first base and extends into the locking hole. The carrier plate is provided with two tube positioning grooves. The two tube positioning grooves are symmetrically arranged along the center of the motor shaft of the first rotary motor. The harmonica tube is placed in the tube positioning groove. The positioning mechanism includes a pushing module, which comprises a mounting bracket, a second rotary motor, a drive gear, a rack, and a push plate. The mounting bracket is fixedly mounted on the carrier plate, and the second rotary motor is fixedly mounted on the mounting bracket. The motor shaft of the second rotary motor passes through the mounting bracket and connects to the drive gear. The rack is symmetrically arranged on both sides of the drive gear, and the drive gear meshes with the rack. The push plate is slidably connected in the positioning groove of the tube body, and the end of the rack is fixedly connected to the push plate through a connecting plate. The shearing mechanism includes a drive box, a second slide rail, and a second hydraulic cylinder. The drive box is slidably connected to the second slide rail. The piston rod end of the second hydraulic cylinder is fixedly installed on the drive box. The drive box is provided with a first rotating shaft and a second rotating shaft arranged in parallel. A first disc cutter is fixedly installed on the first rotating shaft, and a second disc cutter is fixedly installed on the second rotating shaft.

2. The disc cutter-based stable and efficient cutting and forming machine tool for automotive harmonica tubes according to claim 1, characterized in that, The piston rod end of the first hydraulic cylinder is fixedly mounted on a connecting bracket, which is Y-shaped. A connecting seat is provided on the end of the connecting bracket facing the first base, and the connecting seat is fixedly mounted on the first base.

3. The disc cutter-based stable and efficient cutting and forming machine tool for automotive harmonica tubes according to claim 1, characterized in that, The positioning mechanism further includes a clamping module, which includes a third rotary motor, a flipping frame, a fourth rotary motor, and a clamping component. The third rotary motor is fixedly mounted on the carrier plate, the flipping frame is fixedly mounted on the motor shaft of the third rotary motor, the fourth rotary motor is fixedly mounted on the flipping frame, and the motor shaft of the fourth rotary motor passes through the flipping frame and connects to the clamping component. The clamping component contacts the upper surface of the harmonica tube.

4. The disc cutter-based stable and efficient cutting and forming machine tool for automotive harmonica tubes according to claim 3, characterized in that, The clamping component is a rubber roller.

5. The disc cutter-based stable and efficient cutting and forming machine tool for automotive harmonica tubes according to claim 4, characterized in that, The side wall of the clamping member contacts the harmonica tube, and several circumferentially arranged ribs are provided on the side wall of the clamping member.

6. The disc cutter-based stable and efficient cutting and forming machine tool for automotive harmonica tubes according to claim 1, characterized in that, The push plate has an "L" shaped cross-section.

7. The disc cutter-based stable and efficient cutting and forming machine tool for automotive harmonica tubes according to claim 1, characterized in that, The rack is slidably connected to the carrier disk.

8. The disc cutter-based stable and efficient cutting and forming machine tool for automotive harmonica tubes according to claim 7, characterized in that, The rack is provided with a waist-shaped hole, and the carrier is provided with a positioning pin whose position corresponds to the waist-shaped hole, and the positioning pin extends into the waist-shaped hole.

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