An automatic correction device for copper air pipe of air conditioner compressor

Abstract

The present invention is an automatic straightening device for copper air pipes of air conditioner compressors, and belongs to the field of copper air pipe straightening. The technical scheme is as follows: it includes a base, and the top of the base is sequentially installed with a pre-straightening mechanism, a fine straightening mechanism and a straightening mechanism in the length direction. The top of the base is fixedly connected with a number of bearing platforms equidistantly distributed on the left and right, and a clamping mechanism is slidably installed on the top of the rightmost bearing platform, and a driving mechanism for driving the fine straightening mechanism and the clamping mechanism to operate is fixedly installed on the top of the base. The present invention straightens the copper air pipe through the cooperation of the pre-straightening mechanism, the fine straightening mechanism, the straightening mechanism and the clamping mechanism. The clamping mechanism is driven by the driving mechanism to pull the copper air pipe to move to the right, and the straightening rollers distributed around the copper air pipe first pre-straighten the copper air pipe, and then while the copper air pipe moves to the right, the screw drive assembly drives the second shell to rotate through the one-way transmission assembly, so that the straightening plate rotates around the copper air pipe, and the copper air pipe is finely straightened 360°.

Description

Technical Field

[0001] The invention relates to the technical field of copper air pipe correction, and in particular to an automatic correction device for the copper air pipe of an air-conditioning compressor. Background Art

[0002] The copper gas pipe of the air conditioner compressor is an important part of the air conditioning system, mainly used to transmit refrigerant. The air conditioner installation requires the use of copper pipes that have been processed to connect the indoor and outdoor units. Considering the convenience of storage and transportation, the processed copper pipes are generally coiled into a cylindrical shape. When the indoor and outdoor units of the air conditioner are connected to the copper pipes in batches, the cylindrical copper pipe blanks need to be unwound and straightened first.

[0003] When straightening a copper tube, the existing copper tube straightening device generally uses a traction device to pull the copper tube to be straightened through multiple pairs of straightening wheels, and uses the straightening wheels to straighten the copper tube.

[0004] However, the above copper tube straightening method still has the following shortcomings: 1. Since the copper tube is directly passed through the straightening wheel for straightening, when the bending degree of the copper tube is large, it is easy for the copper tube to be deformed and damaged due to excessive correction range if it is directly straightened by the straightening wheel, which affects the straightening effect of the copper tube; 2. The existing traction device generally pulls and moves the copper tube by external clamping. Since the copper tube is a hollow structure, the copper tube will be deformed under the action of external pressure during the clamping process, which will affect the effect of the copper tube on refrigerant transmission later. If the deformed part is directly cut off, the loss of the copper tube will increase. If the deformed part is processed, the steps are added and the work efficiency is reduced. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides an automatic straightening device for the copper air pipe of an air-conditioning compressor that can be pre-straightened, thereby solving the problem in the prior art that when the bending degree of the copper pipe is large, the copper pipe is easily deformed and damaged due to excessive correction range when it is directly straightened in one step through a straightening wheel.

[0006] The technical solution adopted by the present invention is as follows:

[0007] An automatic straightening device for a copper air pipe of an air conditioner compressor comprises a base, a pre-straightening mechanism, a fine straightening mechanism and a straightening mechanism are sequentially installed on the top of the base along the length direction, a plurality of bearing platforms equidistantly distributed on both sides are fixedly connected to the top of the base, a clamping mechanism is slidably installed on both sides of the top of the bearing platform on one side, and a driving mechanism for driving the fine straightening mechanism and the clamping mechanism to operate is fixedly installed on the top of the base;

[0008] The pre-straightening mechanism comprises a first shell fixedly mounted on the top of the base and having a through hole in the center, a plurality of roller frames are evenly distributed in the circumference of one side of the first shell, a straightening roller is rotatably mounted inside the roller frame, and a first adjustment assembly is mounted on the first shell to drive the roller frames to move synchronously toward the center of the first shell;

[0009] The fine straightening mechanism comprises a support ring fixedly mounted on the top of the base, a second shell is rotatably mounted inside the support ring, a plurality of straightening plates are evenly distributed circumferentially on one side of the second shell, and a plurality of second adjustment components driving the straightening plates to synchronously move toward the center of the support ring are mounted on the first shell;

[0010] The clamping mechanism includes a hollow square tube slidably installed on both sides of the top of the supporting platform on one side, an outer clamping plate is symmetrically arranged at one end of the hollow square tube, and a first transmission component that drives the outer clamping plate to implement external clamping is installed on the hollow square tube, and a first movable block located between the outer clamping plates is slidably installed on both sides of one end of the hollow square tube, and semi-eccentric cams are symmetrically rotatably installed on both sides of the first movable block, and a second transmission component that drives the semi-eccentric cam to implement internal clamping is installed inside the first movable block, and a first driving component that drives the first transmission component and the first movable block to move is installed on the other end of the hollow square tube, and a locking component is installed on the top of the first driving component, and L-shaped baffles are fixedly installed on both ends of the top of the supporting platform on one side.

[0011] Preferably, the first adjusting component includes a movable groove opened on the first shell and corresponding to the roller frame one by one, a first lead screw is rotatably installed inside the movable groove, a first slider is provided on the external threaded sleeve of the first lead screw, one end of the first slider is slidably connected to the movable groove, and the other end is fixedly connected to the roller frame, a driving ring is rotatably installed in the through hole of the first shell, one side of the driving ring is fixedly connected to a bevel gear ring, one end of the first lead screw close to the through hole of the first shell is fixedly connected to a bevel gear, the bevel gear is meshed with the bevel gear ring, and a handwheel is fixedly connected to the other side of the driving ring, and the second adjusting component has the same structure as the first adjusting component.

[0012] Preferably, the straightening mechanism includes two pairs of clamping plates for clamping and straightening the limiting mechanism, and the two pairs of clamping plates are staggered in the circumferential direction of the copper air pipe, and the tops of the corresponding two bases are equipped with a third adjusting component for driving the corresponding pair of clamping plates to move, and the third adjusting component includes a first guide rail fixedly mounted on the top of the base, a two-way lead screw is rotatably mounted inside the first guide rail, and second sliders are threadedly mounted on the outsides of both ends of the two-way lead screw, and the second slider is slidably mounted inside the first guide rail, and the second slider is fixedly connected to the corresponding clamping plate via a fixedly connected support rod, and a driving rod is rotatably connected between the two first guide rails, and the driving rod is transmission-connected to the two-way lead screw via a bevel gear set.

[0013] Preferably, the first transmission assembly comprises a scissor frame symmetrically rotatably mounted on the hollow square tube, wherein the corresponding ends on one side of the two scissor frames are fixedly connected by an outer clamping plate, and the corresponding ends on the other side are connected by a fixedly connected connecting rod.

[0014] Preferably, the second transmission assembly includes a double-sided rack slidably mounted inside the first movable block, a half gear is coaxially fixedly connected to one side of the semi-eccentric cam close to the double-sided rack, both sides of the double-sided rack are respectively meshed with corresponding half gears, a pull plate is fixedly connected to one end of the double-sided rack, a pull groove is provided on the inner bottom wall of the hollow square tube, the bottom end of the pull plate passes through to the bottom of the first movable block, the bottom end of the pull plate is slidably mounted inside the pull groove, wing plates are fixedly connected to both sides of the double-sided rack, and a return spring is fixedly connected between one side of the wing plate and the inner wall of the first movable block.

[0015] Preferably, the first driving assembly includes a first rack slidably mounted on the top of the hollow square tube, a transmission gear is rotatably mounted inside the hollow square tube, a second rack is fixedly connected to one side of the first movable block, the first rack and the second rack are respectively meshed on both sides of the transmission gear, and one end of the second rack is rotatably connected to the corresponding connecting rod through a rotatably mounted pull rod.

[0016] Preferably, the locking assembly includes a hollow stopper fixedly connected to the top of one end of the first rack, a locking block is slidably installed on the bottom of the hollow stopper, a locking piece for pushing the locking block to move forward is installed inside the hollow stopper, the locking piece includes a second movable block slidably installed inside the hollow stopper, one end of the second movable block is fixedly connected to one end of the locking block, a return spring 2 is fixedly connected between the rear side of the second movable block and the hollow stopper, a first locking frame and a second locking frame are fixedly connected to the top of the hollow square tube, and an unlocking piece is installed on the upper end of the hollow stopper.

[0017] Preferably, the unlocking member includes a triangular block fixedly connected to the top of the second movable block, the triangular block is an equilateral triangle, and pushing blocks are slidably installed on both sides of the hollow stopper. The end of the pushing block close to the triangular block is provided with a slope and slides with the side of the triangular block.

[0018] Preferably, the driving mechanism includes a screw drive assembly fixedly mounted on the top of the base and used to drive the hollow square tube to move, one end of the screw drive assembly is connected to a one-way transmission assembly for driving the second shell to rotate, the one-way transmission assembly includes a rotating gear coaxially connected to the second screw in the screw drive assembly, the outside of the second shell is fixedly connected to a rotating ring gear, the rotating gear is meshed with the rotating ring gear, and a ratchet pawl assembly is also installed inside the rotating gear for controlling its one-way rotation.

[0019] Preferably, a limiting mechanism is also installed on the first shell, and the limiting mechanism includes a slide, and one side of the slide is provided with slots equidistantly distributed up and down, and a limiting block 1 is installed inside the slide for sliding. The limiting block 1 is fixedly connected with the slot, and the slot block cooperates with the slot. The first shell is fixedly connected with a slot frame, and the slot frame is parallel to the slide. A fixing screw is installed inside the slot frame for sliding up and down, and one end of the fixing screw is threadedly connected to the limiting block 1. A limiting block 2 located above the limiting block 1 is fixedly connected to one side of the first sliding block corresponding to the slide. A scale line located on the other side of the slide is also provided on the first shell, and a limiting mechanism is also installed on the second shell and the first guide rail.

[0020] It can be seen from the above technical solutions that the advantages of the present invention are:

[0021] 1. The present invention straightens the copper air pipe through the cooperation of a pre-straightening mechanism, a fine straightening mechanism, a straightening-keeping mechanism and a clamping mechanism. The copper air pipe passes through the pre-straightening mechanism, the fine straightening mechanism and the straightening-keeping mechanism in sequence. The clamping mechanism is driven by the driving mechanism to pull the copper air pipe to move to the right. The straightening rollers distributed around the copper air pipe first pre-straighten the copper air pipe, which can initially reduce the bending degree of the copper air pipe. Then, while the copper air pipe moves to the right, the screw driving assembly drives the second shell to rotate through the one-way transmission assembly, so that the straightening plate rotates around the copper air pipe, and the copper air pipe is finely straightened 360°. Finally, the copper air pipe is guided by the staggered clamping plates to keep the copper air pipe in a straightened state, thereby preventing the copper air pipe from being deformed again during the straightening process, thereby improving the straightening effect of the copper air pipe.

[0022] 2. The present invention clamps the copper air pipe by setting a clamping mechanism. When the hollow square tube moves to the L-shaped baffle on the left, the L-shaped baffle on the left will block the locking component. At this time, the hollow square tube continues to move to the left, so that the L-shaped baffle pushes the first driving component to operate. The first driving component drives the first transmission component and the second transmission component to drive the outer clamping plate and the semi-eccentric cam to clamp the inner and outer sides of the copper air pipe synchronously, thereby preventing the copper air pipe from deforming during the clamping process and improving the firmness of the copper air pipe clamping. The outer clamping plate and the semi-eccentric cam are tightened and loosened automatically, thereby improving the efficiency of fixing the copper air pipe, thereby improving the efficiency of straightening the entire copper air pipe.

[0023] 3. The present invention limits the moving distance of the straightening roller by setting a limit mechanism. First, the distance that the straightening roller needs to move is determined according to the scale line, and then the limit block 1 is slid to the corresponding straightening roller. Then the limit block 1 is moved forward to make the card block engage in the card slot, and then the fixing screw is tightened to fix the position of the limit block 1. When the first slider drives the straightening roller to move toward the center of the first shell, the limit block 1 can block and limit the limit block 2 to determine the moving distance of the straightening roller, thereby preventing the straightening roller from clamping the copper air pipe too hard and causing deformation, thereby improving the straightening effect of the copper air pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the pre-straightening mechanism of the present invention.

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the fine straightening mechanism of the present invention.

[0028] Figure 4 It is a three-dimensional structural schematic diagram of the straightening mechanism of the present invention.

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the carrier platform of the present invention.

[0030] Figure 6 It is a three-dimensional structural schematic diagram of the clamping mechanism of the present invention.

[0031] Figure 7 It is a top sectional view of the clamping mechanism of the present invention.

[0032] Figure 8 It is a front view three-dimensional half-section structural schematic diagram of the clamping mechanism of the present invention.

[0033] Fig. 9 It is a three-dimensional structural schematic diagram of the locking assembly of the present invention.

[0034] Fig.10 It is a planar cross-sectional structural diagram of the one-way transmission component of the present invention.

[0035] Fig.11 It is a three-dimensional structural schematic diagram of the limiting mechanism of the present invention.

[0036] Fig.12 It is a schematic diagram of the three-dimensional structure of the limiting block 1 of the present invention.

[0037] In the figure: 1, base; 2, pre-straightening mechanism; 21, first shell; 22, roller frame; 23, straightening roller; 24, first adjustment assembly; 241, movable groove; 242, first lead screw; 243, first slider; 244, drive ring; 245, hand wheel; 3, fine straightening mechanism; 31, support ring; 32, second shell; 33, straightening plate; 34, second adjustment assembly; 4, straightening mechanism; 41, clamping plate; 42, third adjustment assembly; 421, first A guide rail; 422, a two-way lead screw; 423, a second slider; 424, a support rod; 425, a driving rod; 5, a bearing platform; 51, a support wheel; 6, a clamping mechanism; 61, a hollow square tube; 611, a guide block; 612, a guide groove; 62, an outer clamping plate; 63, a first transmission assembly; 631, a scissor frame; 632, a connecting rod; 64, a first movable block; 65, a semi-eccentric cam; 66, a second transmission assembly; 661, a double-sided rack; 662, a semi-gear ; 663, pull plate; 664, pull groove; 665, wing plate; 666, reset spring 1; 67, first drive assembly; 671, first rack; 672, transmission gear; 673, second rack; 674, pull rod; 68, locking assembly; 681, hollow stopper; 682, locking block; 683, locking member; 6831, second movable block; 6832, reset spring 2; 684, first locking frame; 685, second locking frame; 686, unlocking member; 6861, triangular block; 6862, pushing block; 69, L-shaped baffle; 7, driving mechanism; 71, screw driving assembly; 711, connecting arm; 72, one-way transmission assembly; 721, rotating gear; 722, rotating gear ring; 723, ratchet pawl assembly; 8, limiting mechanism; 81, slideway; 82, slot; 83, limiting block 1; 831, slot; 84, slot frame; 85, fixing screw; 86, limiting block 2; 87, scale line; 9, copper air pipe. DETAILED DESCRIPTION

[0038] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0039] Example:

[0040] See also Figure 1An automatic straightening device for a copper air pipe of an air-conditioning compressor comprises a base 1, a pre-straightening mechanism 2, a fine straightening mechanism 3 and a straightening mechanism 4 are sequentially installed on the top of the base 1 along the length direction, a plurality of bearing platforms 5 equidistantly distributed on the left and right are fixedly connected to the top of the base 1, a clamping mechanism 6 is slidably installed on the top of the rightmost bearing platform 5 on the left and right, and a driving mechanism 7 for driving the fine straightening mechanism 3 and the clamping mechanism 6 to operate is fixedly installed on the top of the base 1.

[0041] See also Figure 1 and Figure 2 The pre-straightening mechanism 2 includes a first shell 21 fixedly mounted on the top of the base 1 and having a through hole in the center. A plurality of roller frames 22 are evenly distributed circumferentially on the right side of the first shell 21. A straightening roller 23 is rotatably mounted inside the roller frame 22. A first adjusting assembly 24 is mounted on the first shell 21 to drive the roller frames 22 to move synchronously toward the center of the first shell 21.

[0042] See also Figure 1 and Figure 3 The fine straightening mechanism 3 includes a support ring 31 fixedly mounted on the top of the base 1, a second shell 32 is rotatably mounted inside the support ring 31, a plurality of straightening plates 33 are evenly distributed circumferentially on the right side of the second shell 32, and a second adjustment component 34 is mounted on the first shell 21 for driving the plurality of straightening plates 33 to move synchronously toward the center of the support ring 31.

[0043] See also Figure 1 , Figure 5 , Figure 6 and Figure 7 The clamping mechanism 6 includes a hollow square tube 61 slidably mounted on the top of the rightmost bearing platform 5, an outer clamping plate 62 is symmetrically arranged at the left end of the hollow square tube 61, a first transmission component 63 that drives the outer clamping plate 62 to implement external clamping is installed on the hollow square tube 61, a first movable block 64 located between the outer clamping plates 62 is slidably mounted on the left end of the hollow square tube 61, a semi-eccentric cam 65 is symmetrically mounted on the front and rear sides of the first movable block 64, a second transmission component 66 that drives the semi-eccentric cam 65 to implement internal clamping is installed inside the first movable block 64, a first driving component 67 that drives the first transmission component 63 and the first movable block 64 to move is installed on the right end of the hollow square tube 61, a locking component 68 is installed on the top of the first driving component 67, and L-shaped baffles 69 are fixedly installed on both left and right ends of the top of the rightmost bearing platform 5.

[0044] See also Figure 1 and Figure 2The first adjusting component 24 includes a movable groove 241 opened on the first shell 21 and corresponding to the roller frame 22 one by one. A first screw 242 is rotatably installed inside the movable groove 241. The external threaded sleeve of the first screw 242 is provided with a first slider 243. One end of the first slider 243 is slidably connected to the movable groove 241, and the other end is fixedly connected to the roller frame 22. A driving ring 244 is rotatably installed in the through hole of the first shell 21. A bevel gear ring is fixedly connected to the right side of the driving ring 244. A bevel gear is fixedly connected to one end of the first screw 242 close to the through hole of the first shell 21. The bevel gear is meshed with the bevel gear ring. A hand wheel 245 is fixedly connected to the left side of the driving ring 244. The second adjusting component 34 has the same structure as the first adjusting component 24.

[0045] The driving ring 244 is driven to rotate by rotating the hand wheel 245, and then the driving ring 244 drives the first lead screw 242 to rotate through the bevel gear set, so that the first slider 243 drives the straightening roller 23 to move toward the center of the first shell 21. The diameter of the circular area surrounded by several straightening rollers 23 is slightly larger than the diameter of the copper air pipe 9. The copper air pipe 9 passes through the middle of the circular area. The straightening rollers 23 are used to perform preliminary straightening on the copper air pipe 9, so that the copper air pipe 9 can be corrected into a roughly straight shape, which is convenient for subsequent fine straightening of the copper air pipe 9.

[0046] See also Figure 1 and Figure 4 The straightening mechanism 4 includes two pairs of clamping plates 41 for clamping and straightening the limiting mechanism 8, and the two pairs of clamping plates 41 are staggered in the circumferential direction of the copper air pipe 9, and the corresponding opposite surfaces of the two clamping plates 41 are concave arc surfaces. A third adjusting component 42 for driving the corresponding pair of clamping plates 41 to move is installed on the top of the base 1. The third adjusting component 42 includes a first guide rail 421 fixedly installed on the top of the base 1, and a bidirectional lead screw 422 is rotatably installed inside the first guide rail 421. The external ends of the bidirectional lead screw 422 are both threaded with a second slider 423. The second slider 423 is slidably installed inside the first guide rail 421. The second slider 423 is fixedly connected to the corresponding clamping plate 41 through a fixedly connected support rod 424. A driving rod 425 is rotatably connected between the two first guide rails 421, and the driving rod 425 is transmission-connected to the bidirectional lead screw 422 through a bevel gear set.

[0047] The bidirectional lead screw 422 is driven to rotate by the driving rod 425, so that the second sliders 423 at both ends move toward each other, so that the clamping plates 41 are clamped on both sides of the copper air pipe 9. When the copper air pipe 9 passes between the two pairs of clamping plates 41, the copper air pipe 9 is guided by the two pairs of staggered clamping plates 41, which is beneficial to keep the copper air pipe 9 in a straight state and improve the straightening effect of the copper air pipe 9.

[0048] See also Figure 1 , Figure 5 and Figure 6 Several supporting platforms 5 are respectively located on the right side of the pre-straightening mechanism 2, the fine straightening mechanism 3 and the straightening mechanism 4. Several supporting wheels 51 equidistantly distributed on the left and right are rotatably installed on the top of the supporting platform 5. A guide groove 612 is opened on the top of the rightmost supporting platform 5. Guide blocks 611 are symmetrically fixedly connected to the front and rear sides of the hollow square tube 61. The bottom of the guide block 611 is slidably installed in the guide groove 612.

[0049] The copper air pipe 9 is supported by setting a support wheel 51. When the copper air pipe 9 moves to the right, the rolling support wheel 51 can reduce the friction, which is beneficial to the movement of the copper air pipe 9; the guide groove 612 can guide and limit the guide block 611 during the left and right movement of the hollow square tube 61, thereby improving the stability of the movement of the hollow square tube 61.

[0050] See also Figure 1 , Figure 6 and Figure 7 The first transmission assembly 63 includes a scissor frame 631 symmetrically mounted on the upper and lower sides of the hollow square tube 61. The corresponding ends of the left ends of the upper and lower scissor frames 631 are fixedly connected by an outer clamping plate 62, and the corresponding ends of the right ends are connected by a fixedly connected connecting rod 632.

[0051] See also Figure 6 , Figure 7 and Figure 8 The second transmission assembly 66 includes a double-sided rack 661 slidably installed left and right inside the first movable block 64, a half gear 662 is coaxially fixedly connected to the side of the semi-eccentric cam 65 close to the double-sided rack 661, the front and rear sides of the double-sided rack 661 are respectively meshed with the corresponding half gear 662, a pull plate 663 is fixedly connected to the right end of the double-sided rack 661, a pull groove 664 is opened on the inner bottom wall of the hollow square tube 61, the bottom end of the pull plate 663 passes through the bottom of the first movable block 64 and then slides left and right inside the pull groove 664, the front and rear sides of the double-sided rack 661 are fixedly connected with wing plates 665, and a return spring 666 is fixedly connected between the right side of the wing plate 665 and the inner wall of the first movable block 64.

[0052] See also Figure 6 , Figure 7 and Figure 8 The first driving assembly 67 includes a first rack 671 slidably installed on the top of the hollow square tube 61, a transmission gear 672 is rotatably installed inside the hollow square tube 61, and a second rack 673 is fixedly connected to the right side of the first movable block 64. The first rack 671 and the second rack 673 are respectively engaged with the upper and lower sides of the transmission gear 672, and the right end of the second rack 673 is rotatably connected to the corresponding connecting rod 632 through a rotatably installed pull rod 674.

[0053] When the hollow square tube 61 moves to the L-shaped stop bar 69 on the left, the L-shaped stop bar 69 on the left is used to unlock the locking assembly 68. At this time, the hollow square tube 61 continues to move to the left, and the first rack 671 does not move relative to the L-shaped stop bar 69 on the left. The transmission gear 672 rotates while moving to the left along the first rack 671, and then the transmission gear 672 drives the second rack 673 to slide to the left. The second rack 673 is used to push the first movable block 64 to slide to the left into the inner cavity of the copper air pipe 9, and the pull plate 663 moves to the left end of the pull groove 664 and is blocked. The double-sided rack 661 stops moving, and then the first movable block 64 continues to move to the left, so that the half gear 662 rotates along the double-sided rack 661, thereby driving the semi-eccentric cam 65 to rotate out of the interior of the first movable block 64, so that the semi-eccentric cam 65 clamps the copper air pipe 9 internally, and at the same time, the second rack 673 pulls the connecting rod 632 inward through the pull rod 674, so that the right end of the scissors frame 631 moves inward. At this time, the left end of the scissors frame 631 can push the two outer clamps 62 to clamp the outside of the copper air pipe 9, thereby improving the firmness of the clamping of the copper air pipe 9.

[0054] When the hollow square tube 61 moves to the L-shaped stop bar 69 on the right, the L-shaped stop bar 69 on the right is used to unlock the lock assembly 68. At this time, the hollow square tube 61 continues to move to the right, and the first rack 671 is relatively stationary. The transmission gear 672 rotates while the first rack 671 moves to the right. The transmission gear 672 then drives the second rack 673 to slide to the right, and the second rack 673 drives the first movable block 64 to slide to the right. At this time, the return spring 666 is used to push the first movable block 64 to the right. The movable double-sided rack 661 moves to the left, and drives the half gear 662 to rotate in the opposite direction through the double-sided rack 661, so that the semi-eccentric cam 65 retracts into the interior of the first movable block 64, releasing the internal clamping of the copper air pipe 9. At the same time, the second rack 673 pulls the connecting rod 632 outward through the pull rod 674, so that the right end of the scissors frame 631 moves away from the outside. At this time, the left end of the scissors frame 631 can push the two outer clamps 62 to loosen the external clamping of the copper air pipe 9, so as to facilitate the automatic loosening of the copper air pipe 9.

[0055] See also Figure 6 , Figure 8 and Fig. 9The locking assembly 68 includes a hollow stopper 681 fixedly connected to the top of the left end of the first rack 671, a locking block 682 is slidably installed at the bottom of the front side of the hollow stopper 681, a locking piece 683 for pushing the locking block 682 to move forward is installed inside the hollow stopper 681, the locking piece 683 includes a second movable block 6831 slidably installed inside the hollow stopper 681, the front side of the second movable block 6831 is fixedly connected to the rear side of the locking block 682, a return spring 2 6832 is fixedly connected between the rear side of the second movable block 6831 and the hollow stopper 681, a first locking frame 684 and a second locking frame 685 located on the front side of the hollow stopper 681 and arranged left and right are fixedly connected to the top of the hollow square tube 61, and an unlocking piece 686 is installed on the top of the hollow stopper 681.

[0056] When the locking block 682 moves to the first locking frame 684 or the second locking frame 685, the reset spring 6832 is used to push the second movable block 6831 forward, so that the locking block 682 can be inserted into the first locking frame 684 or the second locking frame 685, thereby facilitating locking the first rack 671 and keeping the outer clamp 62 and the semi-eccentric cam 65 in a locked or loosened state.

[0057] See also Figure 8 and Fig. 9 The unlocking member 686 includes a triangular block 6861 fixedly connected to the top of the second movable block 6831. The triangular block 6861 is an equilateral triangle with one of its tips facing the front. Pushing blocks 6862 are slidably installed on both sides of the hollow stopper 681. The end of the pushing block 6862 close to the triangular block 6861 is provided with a slope and slides with the side of the triangular block 6861.

[0058] When the hollow stop block 681 moves to contact with the L-shaped stop bar 69, the L-shaped stop bar 69 pushes the pushing block 6862 to move toward the inside of the hollow stop block 681, and then the pushing block 6862 pushes the triangular block 6861 and the second movable block 6831 to move backward, so that the second movable block 6831 can drive the locking block 682 to retract into the inside of the hollow stop block 681, so as to automatically unlock before driving the first rack 671 to move.

[0059] See also Figure 1 , Figure 3 and Fig.10The driving mechanism 7 includes a screw drive assembly 71 fixedly mounted on the top of the base 1 and used to drive the hollow square tube 61 to move left and right, wherein the screw drive assembly 71 includes a screw and a nut seat installed on the screw for reciprocating movement, the screw drive assembly 71 also includes a connecting arm 711, one end of the connecting arm 711 is fixedly connected to the nut seat, and the other end is fixedly connected to the hollow square tube 61, and the hollow square tube 61 is driven to move left and right through the connecting arm 711, the left end of the screw drive assembly 71 is transmission-connected with a one-way transmission assembly 72 for driving the second housing 32 to rotate, the one-way transmission assembly 72 includes a rotating gear 721 coaxially connected to the second screw in the screw drive assembly 71, the outside of the second housing 32 is fixedly connected with a rotating ring gear 722, the rotating gear 721 is meshed with the rotating ring gear 722, and a ratchet pawl assembly 723 for unidirectional rotation control of the rotating gear 721 is also installed inside the rotating gear 721, the screw drive assembly 71 and the ratchet pawl assembly 723 are both prior art.

[0060] When the screw drive assembly 71 drives the hollow square tube 61 to move to the right, the ratchet pawl assembly 723 is in a clamped state, and the screw drive assembly 71 can drive the rotating gear 721 to rotate through the ratchet pawl assembly 723, and then the rotating gear 721 drives the rotating ring gear 722 and the second shell 32 to rotate, so that the straightening plate 33 can rotate and straighten around the copper air pipe 9, thereby improving the straightening effect of the copper air pipe 9; when the screw drive assembly 71 drives the hollow square tube 61 to move to the left, the ratchet pawl assembly 723 is in a slipped state, and the screw drive assembly 71 cannot drive the rotating gear 721 to rotate through the ratchet pawl assembly 723, thereby preventing the straightening plate 33 from rotating when the clamping mechanism 6 moves to the left.

[0061] See also Figure 2 , Figure 3 , Figure 4 , Fig.11 and Fig.12 A limiting mechanism 8 is also installed on the first shell 21. The limiting mechanism 8 includes a slide 81 opened on the right side of the first shell 21. The front side of the slide 81 is provided with a card slot 82 equidistantly distributed up and down. A limiting block 83 is slidably installed inside the slide 81. A card block 831 is fixedly connected to the front side of the limiting block 83. The card block 831 cooperates with the card slot 82. A groove frame 84 is fixedly connected to the right side of the first shell 21. The groove frame 84 is located at the front side of the slide 81 and is parallel to it. A fixing screw 85 is installed inside the groove frame 84 for sliding up and down. The rear end of the fixing screw 85 is threadedly connected to the limiting block 83. A limiting block 2 86 located above the limiting block 83 is fixedly connected to the front side of the first slider 243 corresponding to the slide 81. A scale line 87 located on the rear side of the slide 81 is also provided on the first shell 21. The limiting mechanism 8 is also installed on the second shell 32 and the first guide rail 421.

[0062] Before moving the straightening roller 23 to straighten the copper air pipe 9, first observe the scale line 87 to determine the distance that the straightening roller 23 needs to move, then slide the limit block 83 to the distance indicated by the scale line 87, and then move the limit block 83 forward to make the clamping block 831 clamped into the clamping groove 82, and then tighten the fixing screw 85 to fix the position of the limit block 83. When the first slider 243 drives the straightening roller 23 to move toward the center of the first shell 21, the limit block 1 83 can block and limit the limit block 2 86, so as to determine the moving distance of the straightening roller 23 and prevent the straightening roller 23 from clamping the copper air pipe 9 too much to cause deformation. Similarly, the limit mechanisms 8 corresponding to the second shell 32 and the first guide rail 421 are used to limit the moving distance of the straightening plate 33 and the clamping plate 41.

[0063] See also Figure 1-Figure 12 When used specifically, step one is to roughly straighten the end of the coiled copper air pipe 9 manually, and then pass the end of the copper air pipe 9 through the first shell 21 and the second shell 32 in turn, and then pass through the pair of clamping plates 41, and finally place the end of the copper air pipe 9 on the left end of the rightmost supporting platform 5.

[0064] Step 2: Drive the hollow square tube 61 to move to the left through the screw drive assembly 71. When the hollow square tube 61 moves to the L-shaped baffle 69 on the left, the L-shaped baffle 69 on the left is used to block the hollow block 681. The pushing block 6862 on the left will first contact the L-shaped baffle 69, and the L-shaped baffle 69 is used to push the pushing block 6862 on the left to move toward the inside of the hollow block 681. The pushing block 6862 then pushes the triangular block 6861 and the second movable block 6831 to move backward, so that the second movable block 6831 can drive the locking block 682 to retract into the inside of the hollow block 681, thereby separating the locking block 682 from the first locking frame 684 and releasing the lock on the first rack 671.

[0065] Step 3: After the locking assembly 68 releases the lock on the first rack 671, the hollow square tube 61 continues to move to the left. At this time, the first rack 671 slides to the right relative to the hollow square tube 61 and drives the transmission gear 672 to rotate. Then the transmission gear 672 drives the second rack 673 to slide to the left. The second rack 673 is used to push the first movable block 64 to slide to the left into the inner cavity of the copper air pipe 9. When the pull plate 663 moves to the left end of the pull groove 664, it will be blocked, causing the double-sided rack 661 to stop moving. Then the first movable block 64 is pushed to slide to the left into the inner cavity of the copper air pipe 9. The movable block 64 continues to move to the left, causing the half gear 662 to rotate along the double-sided rack 661, thereby driving the semi-eccentric cam 65 to rotate and protrude to the outside of the first movable block 64, so that the semi-eccentric cam 65 clamps the copper air pipe 9 internally. At the same time, the second rack 673 that moves to the left pulls the connecting rod 632 inward through the pull rod 674, so that the right end of the scissor frame 631 moves inward, so that the left end of the scissor frame 631 pushes the two outer clamps 62 to clamp the outside of the copper air pipe 9, thereby completing the fixation of the right end of the copper air pipe 9.

[0066] Step 4. Determine the distance that the straightening roller 23 needs to move by observing the scale line 87, then slide the limit block 83 to the corresponding straightening roller 23, and then move the limit block 83 forward so that the card block 831 is engaged with the card slot 82, and then tighten the fixing screw 85 to fix the position of the limit block 83 to determine the moving distance of the straightening roller 23. Similarly, adjust the limit mechanism 8 on the second shell 32 and the first guide rail 421 to limit the moving distance of the straightening plate 33 and the clamping plate 41 respectively.

[0067] Step 5. Drive ring 244 is driven to rotate by rotating hand wheel 245, and then drive ring 244 drives first lead screw 242 to rotate through bevel gear set, so that first slider 243 drives straightening roller 23 to move toward the direction close to the center of first shell 21. When first slider 243 moves, it will drive limit block 2 86 to move together until limit block 2 86 moves to limit block 1 83 and is blocked, so that straightening roller 23 moves to the set position. At this time, the diameter of the circle formed by straightening roller 23 is slightly larger than the diameter of copper air pipe 9, so as to prevent the straightening roller 23 from clamping the copper air pipe 9 too much and causing deformation. Similarly, the straightening plate 33 is driven inward by the second adjusting component 34, so that the straightening plate 33 is close to the surface of copper air pipe 9; the bidirectional lead screw 422 is driven to rotate by rotating driving rod 425, so that the second slider 423 drives clamping plate 41 to move toward each other until clamping plate 41 is close to the surface of copper air pipe 9.

[0068] Step six, the hollow square tube 61 is driven to move to the left by the screw drive assembly 71, and then the copper air pipe 9 is pulled to move to the right. At the same time, the screw drive assembly 71 drives the rotating gear 721 to rotate through the ratchet pawl assembly 723, and then the rotating gear 721 drives the rotating gear ring 722 to rotate, so that the second shell 32 drives the straightening plate 33 to rotate. When the copper air pipe 9 passes through the pre-straightening mechanism 2, the fine straightening mechanism 3, and the straightening mechanism 4, the subsequent coiled copper air pipe 9 is first rolled and straightened by the straightening roller 23, and then the copper air pipe 9 is rotated and clamped and straightened by the straightening plate 33, and then the copper air pipe 9 is clamped by the clamping plate 41 to keep the copper air pipe 9 in a straight state.

[0069] Step 7, when the hollow square tube 61 moves to the L-shaped stopper 69 on the right, first use the L-shaped stopper 69 on the left to push the pushing block 6862 on the right to release the lock of the first rack 671, and then the L-shaped stopper 69 on the right blocks the hollow stopper 681, then the hollow square tube 61 continues to move to the right, the transmission gear 672 rotates to the right along the first rack 671, and then the transmission gear 672 drives the second rack 673 to slide to the right, and the second rack 673 drives the first movable block 64 to slide to the right, and then the return spring 1 666 is used to push the double-sided rack 661 moves to the left, and drives the half gear 662 to rotate in the opposite direction through the double-sided rack 661, so that the semi-eccentric cam 65 retracts into the interior of the first movable block 64, releasing the internal clamping of the copper air pipe 9. At the same time, the second rack 673 pulls the connecting rod 632 outward through the pull rod 674, so that the right end of the scissors frame 631 moves away from the outside. At this time, the left end of the scissors frame 631 can push the two outer clamps 62 to release the external clamping of the copper air pipe 9, loosen the right end of the copper air pipe 9, and then use external cutting equipment to cut off and remove the copper air pipe 9 on the rightmost supporting platform 5.

[0070] Step 8: Repeat steps 2, 3, 6 and 7 to continuously straighten the copper air pipe 9, and cut the straightened copper air pipe 9 into sections to facilitate the use of the air conditioning compressor.

[0071] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic correction device for a copper air pipe of an air-conditioning compressor, comprising a base (1), characterized in that: A pre-straightening mechanism (2), a fine straightening mechanism (3) and a straightening-maintaining mechanism (4) are sequentially mounted on the top of the base (1) along the length direction; a plurality of bearing platforms (5) equidistantly distributed on both sides are fixedly connected to the top of the base (1); clamping mechanisms (6) are slidably mounted on both sides of the top of the bearing platform (5) on one side; and a driving mechanism (7) for driving the fine straightening mechanism (3) and the clamping mechanism (6) to operate is fixedly mounted on the top of the base (1); The pre-straightening mechanism (2) comprises a first shell (21) fixedly mounted on the top of the base (1) and having a through hole at the center, a plurality of roller frames (22) being evenly distributed in the circumferential direction on one side of the first shell (21), a straightening roller (23) being rotatably mounted inside the roller frame (22), and a first adjustment assembly (24) being mounted on the first shell (21) and driving the roller frames (22) to move synchronously toward the center of the first shell (21); The fine straightening mechanism (3) comprises a support ring (31) fixedly mounted on the top of the base (1), a second housing (32) being rotatably mounted inside the support ring (31), a plurality of straightening plates (33) being evenly distributed circumferentially on one side of the second housing (32), and a plurality of second adjustment components (34) for driving the straightening plates (33) to synchronously move toward the center of the support ring (31) being mounted on the second housing (32); The clamping mechanism (6) comprises a hollow square tube (61) slidably mounted on both sides of the top of a bearing platform (5) on one side, an outer clamping plate (62) is symmetrically arranged at one end of the hollow square tube (61), a first transmission assembly (63) for driving the outer clamping plate (62) to implement external clamping is installed on the hollow square tube (61), a first movable block (64) located between the outer clamping plates (62) is slidably mounted on both sides of one end of the hollow square tube (61), a semi-eccentric cam (65) is symmetrically rotatably mounted on both sides of the first movable block (64), a second transmission assembly (66) for driving the semi-eccentric cam (65) to implement internal clamping is installed inside the first movable block (64), a first driving assembly (67) for driving the first driving assembly (63) and the first movable block (64) to move is installed on the other end of the hollow square tube (61), a locking assembly (68) is installed on the top of the first driving assembly (67), and L-shaped stop bars (69) are fixedly mounted on both ends of the top of the bearing platform (5) on one side.

2. The automatic correction device for copper air pipe of air conditioner compressor according to claim 1, characterized in that: The straightening mechanism (4) comprises two pairs of clamping plates (41) for clamping and straightening the copper air pipe (9), and the two pairs of clamping plates (41) are staggeredly distributed in the circumferential direction of the copper air pipe (9). A third adjustment component (42) for driving the corresponding pair of clamping plates (41) to move is installed on the top of the base (1). The third adjustment component (42) comprises a first guide rail (421) fixedly installed on the top of the base (1). A bidirectional lead screw (422) is rotatably installed inside the first guide rail (421). The outer ends of the bidirectional lead screw (422) are both threadedly sleeved with a second slider (423). The second slider (423) is slidably installed inside the first guide rail (421). The second slider (423) is fixedly connected to the corresponding clamping plate (41) via a fixedly connected support rod (424). A driving rod (425) is rotatably connected between the two first guide rails (421). The driving rod (425) is transmission-connected to the bidirectional lead screw (422) via a bevel gear set.

3. The automatic correction device for copper air pipe of air conditioner compressor according to claim 1, characterized in that: The first transmission assembly (63) comprises a scissor frame (631) symmetrically rotatably mounted on the hollow square tube (61), wherein corresponding ends of two scissor frames (631) are fixedly connected on one side via an outer clamping plate (62), and corresponding ends on the other side are connected via a fixedly connected connecting rod (632).

4. The automatic correction device for copper air pipe of air conditioner compressor according to claim 3, characterized in that: The second transmission assembly (66) comprises a double-sided rack (661) slidably mounted inside the first movable block (64); a semi-eccentric cam (65) is coaxially fixedly connected to a half gear (662) on one side close to the double-sided rack (661); two sides of the double-sided rack (661) are respectively meshed with corresponding half gears (662); one end of the double-sided rack (661) is fixedly connected to a pull plate (663); a pull groove (664) is provided on the inner bottom wall of the hollow square tube (61); the bottom end of the pull plate (663) passes through the bottom of the first movable block (64); the bottom end of the pull plate (663) is slidably mounted inside the pull groove (664); wing plates (665) are fixedly connected to both sides of the double-sided rack (661); a return spring (666) is fixedly connected between one side of the wing plate (665) and the inner wall of the first movable block (64).

5. The automatic correction device for copper air pipe of air conditioner compressor according to claim 4, characterized in that: The first driving assembly (67) includes a first rack (671) slidably mounted on the top of the hollow square tube (61), a transmission gear (672) rotatably mounted inside the hollow square tube (61), a second rack (673) fixedly connected to one side of the first movable block (64), the first rack (671) and the second rack (673) respectively meshing on both sides of the transmission gear (672), and one end of the second rack (673) is rotatably connected to a corresponding connecting rod (632) via a rotatably mounted pull rod (674).

6. The automatic correction device for copper air pipe of air conditioner compressor according to claim 5, characterized in that: The locking assembly (68) comprises a hollow stopper (681) fixedly connected to the top of one end of the first rack (671); a locking block (682) is slidably mounted on the bottom of the hollow stopper (681); a locking member (683) is mounted inside the hollow stopper (681) for pushing the locking block (682) to move forward; the locking member (683) comprises a second movable block (6831) slidably mounted inside the hollow stopper (681); one end of the second movable block (6831) is fixedly connected to one end of the locking block (682); a second return spring (6832) is fixedly connected between the rear side of the second movable block (6831) and the hollow stopper (681); a first locking frame (684) and a second locking frame (685) are fixedly connected to the top of the hollow square tube (61); and an unlocking member (686) is mounted on the upper end of the hollow stopper (681).

7. The automatic correction device for copper air pipe of air conditioner compressor according to claim 6, characterized in that: The unlocking member (686) comprises a triangular block (6861) fixedly connected to the top of the second movable block (6831), the triangular block (6861) is an equilateral triangle, and pushing blocks (6862) are slidably mounted on both sides of the hollow stopper (681), and an end of the pushing block (6862) close to the triangular block (6861) is provided with an inclined surface and slidably cooperates with the side of the triangular block (6861).

8. The automatic correction device for copper air pipe of air conditioner compressor according to claim 1, characterized in that: The driving mechanism (7) comprises a screw drive assembly (71) fixedly mounted on the top of the base (1) and used to drive the hollow square tube (61) to move; one end of the screw drive assembly (71) is drivingly connected to a one-way transmission assembly (72) for driving the second housing (32) to rotate; the one-way transmission assembly (72) comprises a rotating gear (721) coaxially connected to a second screw in the screw drive assembly (71); the outside of the second housing (32) is fixedly connected to a rotating ring gear (722); the rotating gear (721) meshes with the rotating ring gear (722); and a ratchet pawl assembly (723) for controlling the one-way rotation of the rotating gear (721) is also installed inside the rotating gear (721).

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