CN117505614A - bending machine - Google Patents

Abstract

The application relates to a bending machine, comprising: a frame; the placing plate is arranged above the rack; the positioning assembly comprises a positioning support frame and a positioning plate arranged on the positioning support frame, and the positioning plate is used for propping against one end of the two devices to be processed; the translation assembly is in transmission connection with the positioning support frame; the bending assembly comprises a rotating shaft, a crank and a bending plate, wherein the rotating shaft is arranged on the frame, the crank is fixedly arranged at the end part of the rotating shaft, the bending plate is fixedly arranged at the periphery side of the rotating shaft, an upper pressing plate is arranged on the rotating shaft in a lifting manner, a lower pressing plate is arranged on the crank in a lifting manner, and the upper pressing plate and the lower pressing plate are oppositely arranged and are used for clamping two to-be-processed devices, and the other end of the two to-be-processed devices is far away from the positioning plate; the bending plate and the positioning plate are oppositely arranged so that one ends of the two devices to be processed are bent; a first height adjustment mechanism. The horizontal height difference between the upper pressing plate and the lower pressing plate is adjusted through the first height adjusting mechanism, so that the thickness of two devices with different specifications is adapted, the universality of the bending machine is improved, the machine is not required to be stopped for replacing a piece, and the production efficiency is improved.

Description

Bending machine

Technical Field

The application relates to the technical field of bending equipment, in particular to a bending machine.

Background

The two devices are the general names of a condenser and an evaporator in the refrigeration industry and are key parts of refrigeration equipment, wherein the two-device bending is an important process in the air conditioner production, and the two-device plates are bent into an L shape according to preset parameters so as to realize the bending of copper pipes in the two devices.

The two devices are generally divided into one layer, two layers and one layer and one half according to the different specifications of copper pipes in the two devices, and the thickness and the length of the two devices are also different. The existing bending machine can only bend two regular devices with single thickness, if two devices with different thicknesses and different lengths are bent, the parts in the existing bending machine structure also need to be replaced manually, the time required for stopping and replacing the parts is long, and the production efficiency is low.

Disclosure of Invention

The application provides a bender to solve current bender commonality poor, need stop to trade two ware with adaptation different specifications, lead to the lower technical problem of production efficiency.

The application provides a bender, include: a frame; the placing plate is arranged above the rack and used for placing two to-be-processed devices; the positioning assembly is arranged on one side of the placing plate, which is away from the rack, and comprises a positioning support frame and a positioning plate arranged on the positioning support frame, wherein the positioning plate is used for propping against one end of the two devices to be processed; the translation assembly is arranged on one side of the placing plate, facing the rack, and is in transmission connection with the positioning support frame and used for driving the positioning support frame to reciprocate along the horizontal direction; the bending assembly comprises a rotating shaft, a crank and a bending plate, wherein the rotating shaft is arranged on the frame, the crank is fixedly arranged at the end part of the rotating shaft, the bending plate is fixedly arranged at the periphery side of the rotating shaft, an upper pressing plate is arranged on the rotating shaft in a lifting manner, a lower pressing plate is arranged on the crank in a lifting manner, and the upper pressing plate and the lower pressing plate are oppositely arranged and are used for clamping two to-be-processed devices, and the other end of the two to-be-processed devices is far away from the positioning plate; the bending plate and the positioning plate are oppositely arranged so as to bend one end of the two devices to be processed under the rotation action of the rotating shaft; and the first height adjusting mechanism is arranged on the lower pressing plate and used for adjusting the horizontal height difference between the upper pressing plate and the lower pressing plate.

In one possible embodiment, a connecting plate is arranged on one side of the rotating shaft, which is away from the bending plate, a first air cylinder is arranged on the connecting plate, and the output end of the first air cylinder penetrates through the connecting plate and is fixedly connected with the upper pressing plate; the crank is including continuous hang plate and horizontal plate, and the one end and the pivot fixed connection of horizontal plate are kept away from to the hang plate, and horizontal plate and connecting plate set up relatively and be provided with the second cylinder on the horizontal plate, and the output of second cylinder runs through the horizontal plate and with holding down plate fixed connection.

In one possible implementation mode, the first height adjusting mechanism comprises a constant-height block and a heightening block which are arranged on the lower pressing plate, the orthographic projection of the upper pressing plate on the lower pressing plate at least partially covers the constant-height block and the heightening block, a fourth cylinder is arranged on one side of the lower pressing plate, which is away from the upper pressing plate, and the output end of the fourth cylinder penetrates through the lower pressing plate and is fixedly connected with the constant-height block; a fifth air cylinder is arranged on one side of the lower pressing plate, which faces the upper pressing plate, and the output end of the fifth air cylinder is fixedly connected with the heightening block, so that the heightening block moves along the horizontal direction and can be embedded between the equal-height block and the lower pressing plate.

In one possible embodiment, the equal-height blocks are two and two equal-height blocks are respectively located at two ends of the lower pressing plate, and the heightening blocks are two and two heightening blocks are respectively located at two ends of the lower pressing plate.

In one possible embodiment, the side of the lower platen facing the upper platen is provided with a recess, and the side of the raised block facing away from the upper platen is provided with a step, the depth of the recess being equal to the height of the step.

In one possible implementation mode, the device further comprises a second height adjusting mechanism, wherein the second height adjusting mechanism comprises a guide rod and a third cylinder which are arranged on the connecting plate, one end of the guide rod penetrates through the connecting plate and is fixedly connected with the upper pressing plate, and a limiting block is arranged at the other end of the guide rod; the output of third cylinder is provided with the locking seat along the axial direction of pivot, under the drive of third cylinder, but the locking seat joint is between stopper and connecting plate to the travel of restriction top board.

In one possible implementation mode, the positioning assembly comprises a vertical guide rail fixed on the positioning support frame, a first motor fixed on the top of the positioning support frame, a lifting screw rod is connected with the output end of the first motor in a transmission way, a first sliding plate is arranged on the lifting screw rod, and a first sliding block in sliding connection with the vertical guide rail is arranged on one side, close to the positioning plate, of the first sliding plate; one side of the first sliding plate, which is away from the first motor, is provided with a sixth air cylinder, and the output end of the sixth air cylinder is fixedly connected with the positioning plate so that the positioning plate moves along the horizontal direction.

In one possible embodiment, the lifting device further comprises a lifting assembly, wherein the lifting assembly comprises a lifting table arranged on the frame and a driving mechanism for driving the lifting table to move up and down; a supporting plate is arranged between the placing plate and the lifting platform, one end of the supporting plate is fixedly connected with the placing plate, and the other end of the supporting plate is fixedly connected with the lifting platform.

In one possible implementation mode, the driving mechanism comprises a second motor, a driving sprocket and a driven sprocket which are connected in a chain transmission mode, and a ball screw which is coaxially arranged with the driven sprocket, wherein a nut on the ball screw is fixedly connected with the lifting table, the second motor is arranged on the frame, and the output end of the second motor is in transmission connection with the driving sprocket; the lifting screw is arranged on the frame, and one end of the lifting screw, which is far away from the frame, is fixedly connected with the lifting table.

In one possible implementation mode, the translation assembly comprises a third motor and a screw rod module, wherein the third motor is arranged on the lifting platform, the screw rod module is in transmission connection with the third motor, a horizontal guide rail is arranged on the lifting platform along the horizontal direction, and a second sliding block in threaded connection with the screw rod module is arranged on the horizontal guide rail in a sliding manner; the placing plate is positioned between the positioning plate and the lifting platform, and one end of the positioning support frame, which faces the lifting platform, penetrates through the placing plate and is fixedly connected with the second sliding block.

In one possible embodiment, the placement plate is provided with a through slot, and the length direction of the through slot is arranged along the horizontal direction.

In one possible implementation mode, a fourth motor and a speed reducer in transmission connection with the fourth motor are arranged on the rack, and the output end of the speed reducer is fixedly connected with the rotating shaft; the frame is provided with a bearing seat, and the rotating shaft is rotationally connected with the bearing seat.

In one possible embodiment, the side of the positioning plate facing the bending plate is provided as a circular arc section.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

according to the bending machine, the positioning support frame is driven to move along the horizontal direction through the translation assembly, the positioning plate props against one end of two devices to be processed and pushes the two devices to be processed to be close to the bending assembly along the horizontal direction, the upper pressing plate and the lower pressing plate clamp the other end of the two devices to be processed away from the positioning plate, meanwhile, the rotating shaft drives the bending plate to rotate 90 degrees, one end of the two devices, which is close to the positioning plate, is bent under the action of the bending plate, the positioning plate horizontally pushes the two devices in the bending process of the two devices, the two devices are assisted to be bent and molded, and the upper pressing plate and the lower pressing plate synchronously clamp the two devices to ensure that the two devices are always in a clamping state, so that bending deviation of the two devices caused by shaking in the bending process is reduced. The horizontal height difference between the upper pressing plate and the lower pressing plate can be adjusted through the height adjusting component, so that the thickness of two devices with different specifications is adapted, the universality of the bending machine is improved, the device is not required to be stopped and replaced when the two devices with different specifications are processed, and the production efficiency is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

Fig. 1 is a schematic structural diagram of a bending machine according to an embodiment of the present application;

FIG. 2 is an enlarged schematic view of a portion of the area A in FIG. 1;

fig. 3 is a front view of a bending assembly of the bending machine shown in fig. 1;

fig. 4 is a side view of a bending assembly of the bending machine shown in fig. 3;

fig. 5 is a perspective view of a positioning assembly of the bending machine shown in fig. 1;

fig. 6 is a front view of a positioning assembly of the bending machine shown in fig. 5;

fig. 7 is a side view of a positioning assembly of the bending machine shown in fig. 5;

fig. 8 is a front view of the lift assembly of the bending machine shown in fig. 1;

fig. 9 is a top view of the lift assembly of the bending machine shown in fig. 8 with the lift table removed;

fig. 10 is a front view of a translation assembly of the bending machine shown in fig. 1;

fig. 11 is a schematic diagram of an operating state of the bending machine shown in fig. 1;

fig. 12 is a second schematic diagram of an operating state of the bending machine shown in fig. 1;

fig. 13 is a schematic diagram III of the operating condition of the bending machine shown in fig. 1;

fig. 14 is a schematic diagram of structural changes of two devices of different specifications before and after bending, wherein (a) is a schematic diagram of a structure of a single-layer two devices before bending, (b) is a schematic diagram of a structure of a single-layer two devices after bending, (c) is a schematic diagram of a structure of a single-layer half two devices before bending, and (d) is a schematic diagram of a structure of a single-layer half two devices after bending.

Reference numerals illustrate:

1. a frame;

2. placing a plate; 21. a through groove;

3. a positioning assembly; 31. positioning a supporting frame; 32. a positioning plate; 33. a vertical guide rail; 34. a first motor; 35. lifting screw rods; 36. a first slide plate; 37. a first slider; 38. a sixth cylinder;

4. a translation assembly; 41. a third motor; 42. a screw rod module; 43. a horizontal guide rail; 44. a second slider;

5. a bending assembly; 51. a rotating shaft; 52. a crank; 521. an inclined plate; 522. a horizontal plate; 53. a bending plate; 54. an upper press plate; 55. a lower pressing plate; 551. a groove; 56. a connecting plate; 57. a first cylinder; 58. a second cylinder; 501. a fourth motor; 502. a speed reducer; 503. a bearing seat;

6. a first height adjustment mechanism; 61. a contour block; 62. heightening the block; 621. a step; 63. a fourth cylinder; 64. a fifth cylinder;

7. a second height adjusting mechanism; 71. a guide rod; 72. a limiting block; 73. a third cylinder; 74. a locking seat;

8. a lifting assembly; 81. a lifting table; 82. a support plate; 83. a second motor; 84. a drive sprocket; 85. a driven sprocket; 86. a ball screw; 861. a nut; 87. and (5) jacking the screw rod.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "upper," "above," "front," "rear," and the like, may be used herein to describe one element's or feature's relative positional relationship or movement to another element's or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figure experiences a position flip or a change in attitude or a change in state of motion, then the indications of these directivities correspondingly change, for example: an element described as "under" or "beneath" another element or feature would then be oriented "over" or "above" the other element or feature. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

The two devices are generally divided into one layer, two layers and one layer and one half according to the different specifications of copper pipes in the two devices, and the thickness and the length of the two devices are also different. As shown in fig. 14, two devices of different specifications are shown in a schematic structural change before and after bending. The existing bending machine can only bend two regular devices with single thickness, if two devices with different thicknesses and different lengths are bent, the parts in the existing bending machine structure also need to be replaced manually, the time required for stopping and replacing the parts is long, and the production efficiency is low.

In order to solve two wares that the bender needs to shut down to trade in order to adapt to different specifications among the prior art, lead to the lower technical problem of production efficiency, this application provides a bender, the level difference between adjustable top board and the holding down plate to adapt to the thickness of two wares of different specifications, improve the commonality of bender, need not to shut down to trade the piece, improved production efficiency.

Fig. 1 and fig. 2 are diagrams of a bending machine according to an embodiment of the present application, including a frame 1, a placement plate 2, a positioning assembly 3, a translation assembly 4, a bending assembly 5, and a first height-adjusting mechanism 6, where the placement plate 2 is disposed above the frame 1 and is used for placing two devices to be processed; the positioning component 3 is arranged on one side of the placing plate 2, which is far away from the frame 1, and the positioning component 3 comprises a positioning support frame 31 and a positioning plate 32 arranged on the positioning support frame, wherein the positioning plate 32 is used for propping against one end of the two devices to be processed; the translation assembly 4 is arranged on one side of the placing plate 2 facing the frame 1, and the translation assembly 4 is in transmission connection with the positioning support frame 31 and is used for driving the positioning support frame 31 to reciprocate along the horizontal direction; the bending assembly 5 comprises a rotating shaft 51, a crank 52 and a bending plate 53, wherein the rotating shaft 51 is rotatably arranged on the frame 1, the crank 52 is fixedly arranged at the end part of the rotating shaft 51, the bending plate 53 is fixedly arranged at the periphery side of the rotating shaft 51, an upper pressing plate 54 is arranged on the rotating shaft 51 in a lifting manner, a lower pressing plate 55 is arranged on the crank 52 in a lifting manner, and the upper pressing plate 54 and the lower pressing plate 55 are oppositely arranged and are used for clamping two to-be-processed devices at the other end far away from the positioning plate 32; the bending plate 53 and the positioning plate 32 are oppositely arranged so as to bend one end of the two devices to be processed under the rotation action of the rotating shaft 51; the first height adjusting mechanism 6 is disposed on the lower platen 55, and is used for adjusting a level difference between the upper platen 54 and the lower platen 55.

The translation subassembly 4 drives the location support frame 31 and moves along the horizontal direction for the locating plate 32 supports the one end of waiting to process two ware and promotes to wait to process two ware and be close to the subassembly 5 of bending along the horizontal direction, top board 54 and holding down plate 55 centre gripping wait to process two ware and keep away from the other end of locating plate 32, pivot 51 drives the rotatory 90 of buckling plate 53 simultaneously, make the one end that two ware is close to locating plate 32 buckle under the effect of buckling plate 53, in two ware bending processes, locating plate 32 horizontal promotion two ware, supplementary two ware bending, top board 54 and holding down plate 55 clamp the two ware in step, in order to guarantee that two ware is in clamping state all the time, reduce two ware and lead to the deviation of buckling of two ware because of rocking in the bending process. The horizontal height difference between the upper pressing plate 54 and the lower pressing plate 55 can be adjusted through the height adjusting component, so that the thickness of two devices with different specifications is adapted, the universality of the bending machine is improved, the device is not required to be stopped and replaced when the two devices with different specifications are processed, and the production efficiency is improved.

In some embodiments, as shown in fig. 2 and 3, a connecting plate 56 is disposed on one side of the rotating shaft 51 away from the bending plate 53, one side of the connecting plate 56 facing the bending plate 53 is disposed in an arc shape fitting with the circumference side of the rotating shaft 51, a first air cylinder 57 is disposed on the connecting plate 56, and an output end of the first air cylinder 57 penetrates through the connecting plate 56 and is fixedly connected with the upper pressing plate 54; the crank 52 comprises an inclined plate 521 and a horizontal plate 522 which are connected, wherein a preset angle is formed between the inclined plate 521 and the vertical direction, one end of the inclined plate 521, which is far away from the horizontal plate 522, is fixedly connected with the rotating shaft 51, the horizontal plate 522 and the connecting plate 56 are oppositely arranged, the horizontal plate 522 is provided with a second air cylinder 58, and the output end of the second air cylinder 58 penetrates through the horizontal plate 522 and is fixedly connected with the lower pressure plate 55.

When the first air cylinder 57 drives the upper pressing plate 54 to move downwards and the second air cylinder 58 drives the lower pressing plate 55 to move upwards, one end of the two devices to be processed far away from the positioning plate 32 can be clamped by the clamping force of the upper pressing plate 54 and the lower pressing plate 55.

In some embodiments, as shown in fig. 2 and 3, the first height-adjusting mechanism 6 includes a height-equalizing block 61 and a height-increasing block 62 that are disposed on the lower platen 55, a fourth cylinder 63 is disposed on a side of the lower platen 55 away from the upper platen 54, and an output end of the fourth cylinder 63 penetrates the lower platen 55 and is fixedly connected with the height-equalizing block 61, and an orthographic projection of the upper platen 54 on the lower platen 55 at least partially covers the height-equalizing block 61 and the height-increasing block 62; a fifth cylinder 64 is provided on a side of the lower pressure plate 55 facing the upper pressure plate 54, and an output end of the fifth cylinder 64 is fixedly connected with the heightening block 62, so that the heightening block 62 moves in a horizontal direction and can be embedded between the heightening block 62 and the lower pressure plate 55.

Because the stroke of the cylinder is fixed, in order to adapt to two devices with more specifications, a first height adjusting mechanism 6 is arranged, if the fourth cylinder 63 and the fifth cylinder 64 do not move, one side of the equal-height block 61, which is away from the lower pressing plate 55, is flush with one side of the heightening block 62, which is away from the lower pressing plate 55, and under the driving of the first cylinder 57 and the second cylinder 58, the horizontal height difference between the upper pressing plate 54 and the lower pressing plate 55 is the thickness of the equal-height block 61, and at the moment, the upper pressing plate 54 and the lower pressing plate 55 can clamp and fix two devices with a single layer; if the fourth cylinder 63 drives the equal-height block 61 to move upwards, the fifth cylinder 64 pushes the heightening block 62 to move horizontally, the heightening block 62 is embedded between the equal-height block 61 and the lower pressing plate 55, so that the height of the equal-height block 61 is heightened to be the thickness of two double-layer devices, and the upper pressing plate 54 and the lower pressing plate 55 can clamp and fix the two double-layer devices under the driving of the first cylinder 57 and the second cylinder 58.

Further, as shown in fig. 3, a groove 551 is provided on a side of the lower platen 55 facing the upper platen 54, a step 621 is provided on a side of the raised block 62 facing away from the upper platen 54, and a depth of the groove 551 is equal to a height of the step 621.

Alternatively, the equal-height blocks 61 are provided with two equal-height blocks 61 and two heightened blocks 62, respectively, at two ends of the lower pressure plate 55, so that the two ends of the upper pressure plate 54 and the lower pressure plate 55 are in stress balance, and the stability of clamping the two devices by the upper pressure plate 54 and the lower pressure plate 55 is improved.

In some embodiments, as shown in fig. 4, the bending machine further includes a second height-adjusting mechanism 7, where the second height-adjusting mechanism 7 includes a guide rod 71 and a third cylinder 73 that are disposed on the connecting plate 56, the length direction of the guide rod 71 is disposed along the vertical direction, one end of the guide rod 71 penetrates through the connecting plate 56 and is fixedly connected with the upper pressing plate 54, and the other end is provided with a limiting block 72; the output end of the third cylinder 73 is provided with a locking seat 74 along the axial direction of the rotating shaft 51, and the locking seat 74 moves along the axial direction of the rotating shaft 51 and is clamped between the limiting block 72 and the connecting plate 56 under the driving of the third cylinder 73 so as to limit the movement stroke of the upper pressing plate 54 and further limit the movement stroke of the upper pressing plate 54.

Because the stroke of the cylinder is fixed, in order to adapt to two devices with more specifications, a second height adjusting mechanism 7 is arranged, and the stroke of the upper pressing plate 54 is adjusted through the locking seat 74, so that the horizontal height difference between the upper pressing plate 54 and the lower pressing plate 55 can adapt to the thickness of two devices with different specifications, and the universality of the bending machine is improved.

Optionally, the third cylinder 73 is provided as a double rod cylinder to promote the smoothness of movement of the locking seat 74.

If the fourth air cylinder 63 and the fifth air cylinder 64 do not move, the side of the equal-height block 61, which is away from the lower pressing plate 55, is flush with the side of the heightening block 62, which is away from the lower pressing plate 55, at this time, the third air cylinder 73 drives the locking seat 74 to limit the travel of the guide rod 71, and the first air cylinder 57 and the second air cylinder 58 can clamp and fix the half two-layer machine.

Optionally, the fifth cylinder 64 is provided as a cartridge cylinder to save layout space.

As shown in fig. 5 to 7, the positioning assembly 3 includes a vertical guide rail 33 fixed on the positioning support frame 31 and a first motor 34 fixed on the top of the positioning support frame 31, the vertical guide rail 33 is disposed on one side deviating from the positioning plate 32, an output end of the first motor 34 is in transmission connection with a lifting screw 35, a length direction of the lifting screw 35 is set along a vertical direction, a first sliding plate 36 is in threaded connection with the lifting screw 35, and a first sliding block 37 in sliding connection with the vertical guide rail 33 is disposed on one side, close to the positioning plate 32, of the first sliding plate 36. A sixth air cylinder 38 is arranged on one side of the first sliding plate 36, which is away from the first motor 34, and the output end of the sixth air cylinder 38 is fixedly connected with the positioning plate 32, so that the positioning plate 32 moves along the horizontal direction to prop against one end of the two devices, and meanwhile, the distance between the positioning plate 32 and the bending plate 53 can be adjusted to adapt to the two devices with different lengths.

The lifting screw 35 is driven to rotate by the first motor 34, so that the first sliding plate 36 drives the positioning plate 32 to move along the vertical guide rail 33, and the distance between the positioning plate 32 and the placing plate 2 is adjusted.

In some embodiments, as shown in fig. 8 and 9, bending machine further comprises a lifting assembly 8, lifting assembly 8 comprising a lifting table 81 provided on frame 1 and a driving mechanism for driving lifting table 81 to move up and down; a support plate 82 (shown in fig. 10) is provided between the placement plate 2 and the elevating table 81, one end of the support plate 82 is fixedly connected with the placement plate 2, and the other end is fixedly connected with the elevating table 81.

The lifting table 81 is driven to move up and down through the driving mechanism, the lifting table 81 drives the placing plate 2 to move up and down, and the horizontal height of the placing plate 2 can be adjusted.

Optionally, the driving mechanism comprises a second motor 83, a driving sprocket 84 and a driven sprocket 85 which are in chain transmission connection, and a ball screw 86 coaxially arranged with the driven sprocket 85, wherein a nut 861 on the ball screw 86 is fixedly connected with the lifting table 81, the second motor 83 is arranged on the frame 1, and the output end of the second motor 83 is in transmission connection with the driving sprocket 84; the lifting screw rod 87 is arranged on the frame 1 in a threaded manner, and one end, far away from the frame 1, of the lifting screw rod 87 is fixedly connected with the lifting table 81 so as to play a guiding role.

The driving sprocket 84 is driven to rotate by the second motor 83, and the ball screw 86 is driven to rotate under the chain transmission action of the driving sprocket 84 and the driven sprocket 85, so that the nut 861 on the ball screw 86 moves up and down along the ball screw 86, and the lifting table 81 is driven to move up and down.

In some embodiments, as shown in fig. 10, the translation assembly 4 is disposed on the lifting platform 81, the translation assembly 4 includes a third motor 41 disposed on the lifting platform 81 and a screw module 42 in transmission connection with the third motor, an output end of the third motor 41 is in transmission connection with the screw module 42 through a coupling, a horizontal guide rail 43 is disposed on the lifting platform 81 along a horizontal direction, a second sliding block 44 is slidably disposed on the horizontal guide rail 43, and the second sliding block 44 is in threaded connection with the screw module 42; the placing plate 2 is located between the positioning plate 32 and the lifting table 81, and the bottom of the positioning support frame 31 penetrates through the placing plate 2 and is fixedly connected with the second sliding block 44.

The third motor 41 drives the screw rod module 42 to rotate, so that the second sliding block 44 slides along the horizontal guide rail 43 to drive the positioning support frame 31 to move along the horizontal direction, thereby realizing that the positioning plate 32 props against one end of the two devices to be processed and assisting in bending and forming of the two devices.

In some embodiments, as shown in fig. 1, the placement plate 2 is provided with a through groove 21, the bottom of the positioning support frame 31 passes through the through groove 21 and is fixedly connected with the second slider 44, and the length direction of the through groove 21 is set along the horizontal direction.

It is to be understood that the through groove 21 may be rectangular, kidney-shaped, etc., and the length of the through groove 21 may be enough to satisfy the sliding travel of the positioning support frame 31, which is not particularly limited herein.

In some embodiments, as shown in fig. 1, a fourth motor 501 and a speed reducer 502 in transmission connection with the fourth motor are arranged on the frame 1, and the output end of the speed reducer 502 is fixedly connected with a rotating shaft 51; the frame 1 is provided with a bearing seat 503, and the rotating shaft 51 is rotatably connected with the bearing seat 503.

The crank 52 and the bending plate 53 are driven to rotate by the power output of the fourth motor 501 and the decelerator 502 with the axis of the rotating shaft 51 as the center, thereby realizing the bending of the two devices.

Optionally, the side of the positioning plate 32 facing the bending plate 53 is provided as an arc section, so that friction between the positioning plate 32 and the two devices is reduced by reducing the stress area of the two devices, and the quality of the finished products of the two devices is ensured.

For ease of understanding, two parameters of different copper tubing specifications are shown as shown in table 1 below.

TABLE 1 two-device parameters for different copper tube specifications

In this embodiment, the thickness of the contour block 61 is set to be 12.7mm, if the fourth air cylinder 63 and the fifth air cylinder 64 do not move, the side of the contour block 61 facing away from the lower platen 55 and the side of the heightening block 62 facing away from the lower platen 55 are flush, the horizontal height difference H1 between the upper platen 54 and the lower platen 55 is the thickness of the contour block 61 under the driving of the first air cylinder 57 and the second air cylinder 58, and at this time, the upper platen 54 and the lower platen 55 can clamp and fix the single-layer two devices (the height is 12.7 mm), as shown in fig. 11; if the fourth cylinder 63 drives the equal-height block 61 to move upwards, the fifth cylinder 64 pushes the heightening block 62 to move horizontally, so that the height of the equal-height block 61 is heightened to be the height (25.4 mm) of two double-layer devices, and the horizontal height difference H2 between the upper pressing plate 54 and the lower pressing plate 55 is 25.4mm under the driving of the first cylinder 57 and the second cylinder 58, so that the two double-layer devices can be clamped and fixed, as shown in fig. 12; if the fourth air cylinder 63 and the fifth air cylinder 64 do not move, the side of the equal-height block 61, which is away from the lower pressure plate 55, and the side of the heightening block 62, which is away from the lower pressure plate 55, are flush, at this time, the third air cylinder 73 drives the locking seat 74 to limit the travel of the guide rod 71, and under the driving of the first air cylinder 57 and the second air cylinder 58, the horizontal height difference H3 between the upper pressure plate 54 and the lower pressure plate 55 is between 12.7mm and 25.4mm, so that the half-device of one layer can be clamped and fixed, as shown in fig. 13.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (13)

1. A bending machine, comprising:

a frame (1);

the placing plate (2) is arranged above the frame (1) and is used for placing two to-be-processed devices;

the positioning assembly (3) is arranged on one side of the placing plate (2) away from the rack (1), the positioning assembly (3) comprises a positioning support frame (31) and a positioning plate (32) arranged on the positioning support frame, and the positioning plate (32) is used for propping against one end of the two devices to be processed;

the translation assembly (4) is arranged on one side of the placing plate (2) facing the frame (1), and the translation assembly (4) is in transmission connection with the positioning support frame (31) and is used for driving the positioning support frame (31) to reciprocate along the horizontal direction;

the bending assembly (5) comprises a rotating shaft (51) arranged on the frame (1), a crank (52) fixedly arranged at the end part of the rotating shaft (51) and a bending plate (53) fixedly arranged at the periphery side of the rotating shaft (51), wherein an upper pressing plate (54) is arranged on the rotating shaft (51) in a lifting manner, a lower pressing plate (55) is arranged on the crank (52) in a lifting manner, and the upper pressing plate (54) and the lower pressing plate (55) are oppositely arranged and are used for clamping the other ends of the two devices to be processed far away from the positioning plate (32); the bending plate (53) and the positioning plate (32) are oppositely arranged so as to bend one ends of the two devices to be processed under the rotation action of the rotating shaft (51); and

the first height adjusting mechanism (6) is arranged on the lower pressing plate (55) and is used for adjusting the horizontal height difference between the upper pressing plate (54) and the lower pressing plate (55).

2. Bending machine according to claim 1, characterized in that a connecting plate (56) is arranged on the side of the rotating shaft (51) facing away from the bending plate (53), a first cylinder (57) is arranged on the connecting plate (56), and the output end of the first cylinder (57) penetrates through the connecting plate (56) and is fixedly connected with the upper pressing plate (54);

the crank (52) comprises an inclined plate (521) and a horizontal plate (522) which are connected, wherein the inclined plate (521) is far away from one end of the horizontal plate (522) and is fixedly connected with the rotating shaft (51), the horizontal plate (522) and the connecting plate (56) are oppositely arranged, a second air cylinder (58) is arranged on the horizontal plate (522), and the output end of the second air cylinder (58) penetrates through the horizontal plate (522) and is fixedly connected with the lower pressing plate (55).

3. Bending machine according to claim 2, characterized in that the first height-adjusting mechanism (6) comprises a contour block (61) and a heightening block (62) which are arranged on the lower pressure plate (55), the orthographic projection of the upper pressure plate (54) on the lower pressure plate (55) at least partially covers the contour block (61) and the heightening block (62), a fourth cylinder (63) is arranged on one side of the lower pressure plate (55) away from the upper pressure plate (54), and the output end of the fourth cylinder (63) penetrates through the lower pressure plate (55) and is fixedly connected with the contour block (61);

a fifth air cylinder (64) is arranged on one side, facing the upper pressing plate (54), of the lower pressing plate (55), and the output end of the fifth air cylinder (64) is fixedly connected with the heightening block (62), so that the heightening block (62) moves along the horizontal direction and can be embedded between the equal-height block (61) and the lower pressing plate (55).

4. A bending machine according to claim 3, wherein said contour blocks (61) are provided with two and two said contour blocks (61) are located at both ends of said lower platen (55), respectively, and said heightened blocks (62) are provided with two and two said heightened blocks (62) are located at both ends of said lower platen (55), respectively.

5. A bending machine according to claim 3, wherein the side of the lower platen (55) facing the upper platen (54) is provided with a groove (551), the side of the raised block (62) facing away from the upper platen (54) is provided with a step (621), and the depth of the groove (551) is equal to the height of the step (621).

6. The bending machine according to claim 2, further comprising a second height-adjusting mechanism (7), wherein the second height-adjusting mechanism (7) comprises a guide rod (71) and a third cylinder (73) which are arranged on the connecting plate (56), one end of the guide rod (71) penetrates through the connecting plate (56) and is fixedly connected with the upper pressing plate (54), and a limiting block (72) is arranged at the other end of the guide rod;

the output end of the third air cylinder (73) is provided with a locking seat (74) along the axial direction of the rotating shaft (51), and the locking seat (74) can be clamped between the limiting block (72) and the connecting plate (56) under the driving of the third air cylinder (73) so as to limit the moving stroke of the upper pressing plate (54).

7. The bending machine according to claim 1, wherein the positioning assembly (3) further comprises a vertical guide rail (33) fixedly arranged on the positioning support frame (31), a first motor (34) fixedly arranged at the top of the positioning support frame (31), a lifting screw (35) is connected to the output end of the first motor (34) in a transmission manner, a first sliding plate (36) is arranged on the lifting screw (35), and a first sliding block (37) in sliding connection with the vertical guide rail (33) is arranged on one side, close to the positioning plate (32), of the first sliding plate (36);

a sixth air cylinder (38) is arranged on one side, deviating from the first motor (34), of the first sliding plate (36), and the output end of the sixth air cylinder (38) is fixedly connected with the positioning plate (32) so that the positioning plate (32) moves along the horizontal direction.

8. Bending machine according to claim 1, characterized in that it further comprises a lifting assembly (8), said lifting assembly (8) comprising a lifting table (81) provided on said frame (1) and a driving mechanism for driving said lifting table (81) to move up and down;

a supporting plate (82) is arranged between the placing plate (2) and the lifting table (81), one end of the supporting plate (82) is fixedly connected with the placing plate (2), and the other end of the supporting plate is fixedly connected with the lifting table (81).

9. The bending machine according to claim 8, wherein the driving mechanism comprises a second motor (83), a driving sprocket (84) and a driven sprocket (85) which are linked in a chain transmission way, and a ball screw (86) coaxially arranged with the driven sprocket (85), wherein a nut (861) on the ball screw (86) is fixedly connected with the lifting table (81), the second motor (83) is arranged on the frame (1), and the output end of the second motor (83) is in transmission connection with the driving sprocket (84);

the lifting device is characterized in that a lifting screw rod (87) is arranged on the frame (1), and one end, far away from the frame (1), of the lifting screw rod (87) is fixedly connected with the lifting table (81).

10. Bending machine according to claim 8, characterized in that said translation assembly (4) comprises a third motor (41) arranged on said lifting table (81) and a screw module (42) in transmission connection therewith, a horizontal guide rail (43) being arranged on said lifting table (81) in horizontal direction, a second slider (44) being arranged on said horizontal guide rail (43) in sliding connection with said screw module (42);

the placement plate (2) is located between the positioning plate (32) and the lifting platform (81), and one end of the positioning support frame (31) facing the lifting platform (81) penetrates through the placement plate (2) and is fixedly connected with the second sliding block (44).

11. Bending machine according to claim 10, characterized in that the placement plate (2) is provided with through grooves (21), the length direction of the through grooves (21) being arranged in the horizontal direction.

12. Bending machine according to claim 1, characterized in that the frame (1) is provided with a fourth motor (501) and a reducer (502) in transmission connection with the fourth motor, the output end of the reducer (502) being fixedly connected with the rotating shaft (51); the machine frame (1) is provided with a bearing seat (503), and the rotating shaft (51) is rotationally connected with the bearing seat (503).

13. Bending machine according to claim 1, characterized in that the side of the positioning plate (32) facing the bending plate (53) is provided as a circular arc segment.