Aluminum pipe straightening device

Abstract

The utility model belongs to the technical field of aluminum pipe machining, and particularly relates to an aluminum pipe straightening device which comprises a cabinet, a bottom shell fixedly connected to the upper side of the cabinet, a top shell fixedly connected to the bottom shell, a three-jaw chuck rotatably connected in the top shell and the bottom shell, an aluminum pipe fixedly clamped by the three-jaw chuck, a first air cylinder fixedly connected to one side of the cabinet and the top shell, and a second air cylinder fixedly connected to the other side of the cabinet and the top shell. The extension end of the first air cylinder extends into the aluminum pipe and is fixedly connected with a ball cup, one end of the ball cup is fixedly connected with a ball, the outer surface of the ball is provided with a wear-resistant and compression-resistant coating, the ball is tightly attached to the inner wall of the aluminum pipe and slides relative to the inner wall of the aluminum pipe, a straightening component is arranged on the machine cabinet, and multiple sets of detection components are arranged on the machine cabinet and located on the two sides of the aluminum pipe. According to the aluminum pipe straightening device, the aluminum pipe is straightened through the straightening component, meanwhile, the aluminum pipe is synchronously supported through the ball head in the aluminum pipe, so that the aluminum pipe is prevented from being extruded and deformed during straightening, the straightening quality is improved, the straightening effect can be synchronously detected through the detection component in the straightening process, and the straightening work efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum tube processing, in particular to an aluminum tube straightening device. Background Art

[0002] Aluminum tube refers to a metal tubular material that is made of pure aluminum or aluminum alloy through extrusion and drawing to be hollow along its entire longitudinal length. The wall thickness and cross-section of the aluminum tube are uniform and consistent. It is delivered in a straight line or in a roll. It is widely used in automobiles, ships, aerospace, aviation, electrical appliances, agriculture, electromechanical, home furnishing and other industries.

[0003] When aluminum tubes are used in production scenarios such as battery aluminum shells that have high requirements on parameters such as aperture, length, straightness and roundness, the aluminum tubes need to be straightened and tested during the production process. The existing straightening equipment has a single structure, and the straightening work and the testing work cannot be effectively combined, which is inefficient. Usually, the straightened aluminum tubes need to be removed for testing after straightening, and aluminum tubes with poor straightening effects need to be straightened again. This process wastes time and manpower and has low production efficiency. In addition, since the aluminum tube material is soft and the inner wall of the aluminum tube is hollow and thin, it is easy to be squeezed and deformed during the straightening process, making the cross section of the aluminum tube become elliptical, affecting its roundness.

[0004] The Chinese patent with the authorization announcement number CN208230557U discloses an aluminum tube straightening device, including a frame, and a first straightening mechanism and a second straightening mechanism sequentially mounted on the frame, the first straightening mechanism includes a first straightening assembly and a second straightening assembly sequentially arranged, the first straightening assembly includes a first straightening roller, a second straightening roller and a first motor driving the first straightening roller to rotate, the first straightening roller and the second straightening roller are respectively arranged on the left and right sides of the aluminum tube, the second straightening assembly includes a third straightening roller, a fourth straightening roller and a second motor driving the third straightening roller to rotate, the third straightening roller and the fourth straightening roller are respectively arranged on the upper and lower sides of the aluminum tube, the second straightening mechanism includes a clamping mechanism and a straightening mechanism, the clamping mechanism includes a clamping part and a cylinder driving the clamping part to move up and down. The aluminum tube is corrected for the first time through the first straightening mechanism, corrected for the second time and tested through the second straightening mechanism, and the correction accuracy is controlled through detection to improve the correction efficiency and yield rate.

[0005] However, the above has the following shortcomings:

[0006] 1. The above patent performs two consecutive straightening operations on the aluminum tube to improve the straightening effect of the aluminum tube, and corrects the roundness of the aluminum tube by controlling the value position, pressing time and pressure of the pressure head. However, the correction effect applied by the above patent to the aluminum tube is discontinuous and uneven, which may easily cause irregular undulations on the surface of the aluminum tube, affecting the overall quality of the aluminum tube.

[0007] 2. In the process of straightening the aluminum tube in the above patent, the aluminum tube has no effective positioning and restriction, which causes the aluminum tube to easily deflect or rotate during the straightening process, affecting the straightening effect and efficiency. Utility Model Content

[0008] In order to overcome the deficiencies of the prior art, the utility model solves the technical problem that, after the aluminum tube is stably fixed by a three-jaw chuck, the movement of the straightening roller is coordinated with the rotation of the aluminum tube to straighten the aluminum tube, and the straightening efficiency is high and the effect is good. In the process of the straightening roller straightening the aluminum tube, the ball head is synchronously moved with the straightening roller, and then in the straightening process, the inside of the aluminum tube is synchronously supported, and the rolling of the straightening roller is coordinated to straighten the roundness of the aluminum tube, thereby improving the straightening quality. In the process of straightening, the detection wheel is used to clamp the straightened position on the aluminum tube, and the pressure sensor is used to detect the straightening effect. In addition, the detection wheel arranged circumferentially around the aluminum tube can detect the correction effect on the roundness of the aluminum tube, and the detection method is simple, stable and accurate.

[0009] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an aluminum tube straightening device, comprising a cabinet, a bottom shell fixedly connected to the upper side of the cabinet, a top shell fixedly connected to the bottom shell, a three-jaw chuck rotatably connected to the top shell and the bottom shell, an aluminum tube is clamped and fixed at one end of the three-jaw chuck, a first cylinder is fixedly connected to the side of the top shell away from the three-jaw chuck, an extended end of the first cylinder extends into the aluminum tube and is fixedly connected to a ball head seat, a ball head is fixedly connected to one end of the ball head seat, a wear-resistant and pressure-resistant coating is provided on the surface of the ball head, and the ball head fits tightly against the inner wall of the aluminum tube and slides relatively.

[0010] The ball head is used to support the inside of the aluminum tube during the straightening process, thereby correcting the roundness of the aluminum tube and preventing the aluminum tube from deforming when it is squeezed during straightening.

[0011] Furthermore, the cabinet is provided with a straightening component, which includes a slide rail, a slide rail is fixedly connected to the upper side of the cabinet, a slide seat is slidably connected to the slide rail, two roller seats are symmetrically distributed and fixedly connected in the slide seat, each of the roller seats is rotatably connected with a straightening roller that fits tightly with the outer wall of the aluminum tube, a screw seat is fixedly connected to the upper edge of the cabinet, a screw seat is rotatably connected between the screw seat and the bottom shell, the screw is meshed and transmission-connected with the slide seat, a first motor is fixedly connected to the side of the bottom shell away from the screw seat, and the first motor is transmission-connected to an end of the screw extending out of the bottom shell.

[0012] After the aluminum tube is stably fixed by the three-jaw chuck, the aluminum tube is straightened by the movement of the straightening roller and the rotation of the aluminum tube. The straightening efficiency is high and the effect is good.

[0013] Furthermore, the cabinet is provided with a plurality of groups of detection components at both sides of the aluminum tube, the detection components include cylinder seats, and the cabinet is provided with a plurality of evenly distributed cylinder seats at both sides of the aluminum tube, each of the cylinder seats is slidably connected with a slide rod, each of the slide rods is fixedly connected with an end close to the aluminum tube to a wheel seat, each of the cylinder seats is fixedly connected with a second cylinder transmission-connected to the wheel seat, each of the wheel seats is provided with two groups of slide grooves, a detection wheel is rotatably and slidably connected in each group of the slide grooves, and a pressure sensor is fixedly connected in each wheel seat at a corresponding position of the detection wheel and is in close contact with the detection wheel and slides relatively therewith.

[0014] During the straightening process, the detection wheel is used to clamp the straightened position on the aluminum tube, and the pressure sensor is used to detect the straightening effect. The detection wheels arranged circumferentially around the aluminum tube can detect the correction effect on the roundness of the aluminum tube. The detection method is simple, stable and accurate.

[0015] Furthermore, a driven wheel is fixedly connected to the three-jaw chuck, a driving wheel is fixedly connected to the cabinet at a position corresponding to the driven wheel, a second motor is fixedly connected to one side of the driving wheel, a power output end of the second motor is transmission-connected to the driving wheel, and the driving wheel and the driven wheel are connected via a transmission belt.

[0016] In summary, compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) After the aluminum tube is stably fixed by the three-jaw chuck, the aluminum tube is straightened by the movement of the straightening roller and the rotation of the aluminum tube. The straightening efficiency is high and the effect is good.

[0018] (2) During the straightening process of the aluminum tube, the ball head is used to move synchronously with the straightening roller, thereby supporting the inside of the aluminum tube synchronously during the straightening process, cooperating with the rolling of the straightening roller to straighten the roundness of the aluminum tube and improve the straightening quality.

[0019] (3) During the straightening process, the straightened position on the aluminum tube is clamped by a detection wheel, and the straightening effect is detected by a pressure sensor. In addition, the detection wheels arranged circumferentially around the aluminum tube can detect the correction effect on the roundness of the aluminum tube. The detection method is simple, stable and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional schematic diagram of this patent.

[0021] Figure 2 This is a schematic diagram of the internal structure of this patent.

[0022] Figure 3 for Figure 2 A partial enlarged view of point B in the middle.

[0023] Figure 4 It is a schematic diagram of the structure of the bottom shell and the three-jaw chuck.

[0024] Figure 5 It is a schematic diagram of the structure at the roller seat.

[0025] Figure 6 This is the main view of this patent.

[0026] Figure 7 for Figure 6 Stereoscopic cross-sectional view at AA in the middle.

[0027] Figure 8 It is a schematic diagram of the structure of the detection component.

[0028] Explanation of the reference numerals in the accompanying drawings: cabinet 10; top shell 11; bottom shell 12; three-jaw chuck 13; slide seat 14; aluminum tube 15; screw seat 16; screw 17; slide rail 18; first motor 19; first cylinder 20; cylinder seat 21; slide rod 22; second cylinder 23; wheel seat 24; detection wheel 25; slide groove 26; pressure sensor 27; driving wheel 28; support 29; second motor 30; transmission belt 31; ball head seat 32; ball head 33; roller seat 34; correction roller 35; driven wheel 36; displacement sensor 37. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0030] Embodiment 1:

[0031] An aluminum tube straightening device includes a cabinet 10, a bottom shell 12 is fixedly connected to the upper side of the cabinet 10, a top shell 11 is fixedly connected to the bottom shell 12, a three-jaw chuck 13 is rotatably connected to the top shell 11 and the bottom shell 12, an aluminum tube 15 is clamped and fixed at one end of the three-jaw chuck 13, a first cylinder 20 is fixedly connected to the side of the top shell 11 away from the three-jaw chuck 13, an extended end of the first cylinder 20 extends into the aluminum tube 15 and is fixedly connected to a ball head seat 32, a ball head 33 is fixedly connected to one end of the ball head seat 32, a wear-resistant and pressure-resistant coating is provided on the surface of the ball head 33, and the ball head 33 is tightly fitted to the inner wall of the aluminum tube 15 and slides relative to each other.

[0032] The ball head 33 is used to support the inside of the aluminum tube 15 during the straightening process, thereby correcting the roundness of the aluminum tube 15 and preventing the aluminum tube from being deformed when it is squeezed during straightening.

[0033] Furthermore, a slide rail 18 is fixedly connected to the upper side of the cabinet 10, and a slide seat 14 is slidably connected to the slide rail 18. Two roller seats 34 are symmetrically distributed and fixedly connected inside the slide seat 14. Each roller seat 34 is rotatably connected to a correction roller 35 that fits tightly with the outer wall of the aluminum tube 15. A screw seat 16 is fixedly connected to the upper edge of the cabinet 10, and a screw 17 is rotatably connected between the screw seat 16 and the bottom shell 12. The screw 17 is meshed and transmission-connected with the slide seat 14. A first motor 19 is fixedly connected to the side of the bottom shell 12 away from the screw seat 16, and the first motor 19 is transmission-connected to one end of the screw 17 extending out of the bottom shell 12.

[0034] After the aluminum tube is stably fixed by the three-jaw chuck 13, the aluminum tube 15 is straightened by the movement of the straightening roller 35 and the rotation of the aluminum tube 15, and the straightening efficiency is high and the effect is good.

[0035] Furthermore, the cabinet 10 is provided with a plurality of evenly distributed cylinder seats 21 on both sides of the aluminum tube 15, each cylinder seat 21 is slidably connected with a slide rod 22, and each slide rod 22 is fixedly connected with a wheel seat 24 at one end close to the aluminum tube 15, and each cylinder seat 21 is fixedly connected with a second cylinder 23 which is transmission-connected to the wheel seat 24, and each wheel seat 24 is provided with two groups of slide grooves 26, and a detection wheel 25 is rotatably and slidably connected in each group of slide grooves 26, and a pressure sensor 27 which fits closely and slides relatively with the detection wheel 25 is fixedly connected at a corresponding position of the detection wheel 25 in each wheel seat 24.

[0036] During the straightening process, the detection wheel 25 is used to clamp the straightened position on the aluminum tube 15, and the pressure sensor 27 is used to detect the straightening effect. In addition, the detection wheel 25 arranged circumferentially around the aluminum tube 15 can detect the correction effect on the roundness of the aluminum tube 15. The detection method is simple, stable and accurate.

[0037] Furthermore, a driven wheel 36 is fixedly connected to the three-jaw chuck 13, a driving wheel 28 is fixedly connected to the cabinet 10 at a position corresponding to the driven wheel 36, a second motor 30 is fixedly connected to one side of the driving wheel 28, a power output end of the second motor 30 is transmission-connected to the driving wheel 28, and the driving wheel 28 and the driven wheel 36 are transmission-connected via a transmission belt 31.

[0038] In this embodiment, an air source and a control circuit are provided in the cabinet 10. Initially, the operator connects the patent to the power supply and the control system, and connects the first cylinder 20 and each second cylinder 23 to the air source. At this time, the first cylinder 20 and each second cylinder 23 are in a retracted state, and the slide 14 is located near the three-jaw chuck 13. The worker passes the aluminum tube 15 to be straightened between the two straightening rollers 35 and inserts it into the three-jaw chuck 13. The operator adjusts the three-jaw chuck 13 to stably clamp the aluminum tube 15 and ensure that the end of the ball head 33 extends into the aluminum tube 15.

[0039] The device is then started, and the control system drives the driving wheel 28 to rotate through the second motor 30, and the driving wheel 28 drives the driven wheel 36 and the three-jaw chuck 13 to rotate through the transmission belt 31, thereby rotating the aluminum tube 15. At the same time, the control system drives the lead screw 17 to rotate through the first motor 19, so that the lead screw 17 drives the slide 14 to move toward the other end of the aluminum tube 15. As the aluminum tube 15 continues to rotate, the straightening roller 35 rolls on the surface of the aluminum tube 15 to straighten the aluminum tube 15.

[0040] During the straightening process, the control system synchronously drives the first cylinder 20 to extend outward, so that the ball head 33 slides in the aluminum tube 15, and ensures that the ball head 33 always maintains the same position as the straightening roller 35, so that the ball head 33 supports the inside of the aluminum tube 15, and the straightening roller 35 rolls the surface of the aluminum tube 15 for straightening, while making the cross-sectional shape of the aluminum tube 15 completely fit the contour of the ball head 33, thereby correcting the roundness of the aluminum tube 15 and improving the overall quality of the aluminum tube 15.

[0041] In the process of the slide 14 moving toward one end of the aluminum tube 15, when the slide 14 passes a certain distance, the operating system controls the second cylinder 23 at the corresponding position to extend outward, pushes the two wheel seats 24 on both sides of the aluminum tube 15 to approach each other, and finally makes the two groups of detection wheels 25 on the two wheel seats 24 close to the outer wall of the aluminum tube 15 and rotate relative to the aluminum tube 15. The slide 14 passes in turn and the corresponding second cylinder 23 pushes the slide 14 in turn to clamp the straightened part of the aluminum tube 15, thereby protecting the straightened part of the aluminum tube 15 to avoid bending and deformation again.

[0042] If the corrected portion of the aluminum tube 15 still has bending, the aluminum tube 15 will squeeze the four pressure sensors 27 located at the same detection position in sequence when it rotates. The control system can determine whether the aluminum tube 15 is bent at this location by detecting whether there is periodic pressure change at the four pressure sensors 27 at the same location. Similarly, if extrusion deformation occurs at the detected position on the aluminum tube 15, the aluminum tube 15 will still squeeze the four pressure sensors 27 in sequence while it rotates, and the control system can thereby determine whether the true roundness at this location is qualified.

[0043] When the slide 14 moves to the screw seat 16 and the test result is qualified, the control system stops the second motor 30 and the first motor 19, and the operator can adjust the three-jaw chuck 13 to loosen and pull out the aluminum tube 15, and then reset all components to wait for the next straightening work.

[0044] If the slide 14 moves to the screw seat 16 and the test result is unqualified, the device does not stop and the first motor 19 rotates in the opposite direction, so that the slide 14 approaches the three-jaw chuck 13 again for secondary straightening, and the first cylinder 20 also retracts synchronously to keep the position of the ball head 33 consistent with the correction roller 35, and all the second cylinders 23 immediately retract to make way for the movement of the slide 14. When the slide 14 passes through the position of the wheel seat 24 again in turn, the second cylinder 23 at the corresponding position extends outward again, clamps and inspects the parts of the aluminum tube 15 that have undergone secondary straightening in turn, and repeats this process until the test result is qualified, and the aluminum tube 15 is removed to complete the straightening work.

[0045] Embodiment 2:

[0046] A displacement sensor 37 is fixedly connected inside the top shell 11 , and the displacement sensor 37 is closely fitted with the extended end of the first cylinder 20 and slides relative to it.

[0047] As a further embodiment, during the movement of the ball head 33, since the ball head 33 fits closely with the inner wall contour of the aluminum tube 15, it is difficult for the ball head 33 to pass through when it encounters the bending position and the position of the aluminum tube 15 that is squeezed and deformed. When the movement of the ball head 33 is blocked, after detection by the displacement sensor 37, the control system stops the movement of the slide 14 synchronously until the blocked position of the ball head 33 is straightened and rounded by the correction roller 35, and then controls the movement of the ball head 33 and the slide 14 again, thereby achieving the unification of the pace of the slide 14 and the ball head 33 while ensuring the straightening and rounding effects, so that the correction roller 35 and the ball head 33 always maintain a state of mutual cooperation, thereby ensuring the stability of the straightening work.

[0048] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0049] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0050] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. An aluminum tube straightening device, characterized in that: The invention comprises a cabinet (10), wherein a bottom shell (12) is fixedly connected to the upper side of the cabinet (10), a top shell (11) is fixedly connected to the bottom shell (12), a three-jaw chuck (13) is rotatably connected to the top shell (11) and the bottom shell (12), an aluminum tube (15) is clamped and fixedly fixed by the three-jaw chuck (13), a first cylinder (20) is fixedly connected to one side of the top shell (11), an extended end of the first cylinder (20) extends into the aluminum tube (15) and is fixedly connected to a ball head seat (32), one end of the ball head seat (32) is fixedly connected to a ball head (33) with a wear-resistant and pressure-resistant coating on the surface, the ball head (33) is tightly fitted with the inner wall of the aluminum tube (15) and slides relatively, a straightening component is arranged on the cabinet (10), and a plurality of detection components are arranged on both sides of the aluminum tube (15) on the cabinet (10).

2. The aluminum tube straightening device according to claim 1, characterized in that: The straightening component comprises a slide rail (18), wherein the slide rail (18) is fixedly connected to the upper side of the cabinet (10), a slide seat (14) is slidably connected to the slide rail (18), two roller seats (34) are symmetrically distributed and fixedly connected inside the slide seat (14), and each of the roller seats (34) is rotatably connected to a straightening roller (35) that is tightly fitted with the outer wall of the aluminum tube (15).

3. The aluminum tube straightening device according to claim 2, characterized in that: A lead screw seat (16) is fixedly connected to the upper edge of the cabinet (10); a lead screw (17) is rotatably connected between the lead screw seat (16) and the bottom shell (12); the lead screw (17) is meshed and transmission-connected with the slide seat (14); a first motor (19) is fixedly connected to the side of the bottom shell (12) away from the lead screw seat (16); and the first motor (19) is transmission-connected to one end of the lead screw (17) extending out of the bottom shell (12).

4. The aluminum tube straightening device according to claim 1, characterized in that: The detection component comprises a cylinder seat (21), wherein a plurality of the cylinder seats (21) are respectively arranged on both sides of the aluminum tube (15), a sliding rod (22) is slidably connected inside each of the cylinder seats (21), an end of each of the sliding rods (22) close to the aluminum tube (15) is fixedly connected to a wheel seat (24), and each of the cylinder seats (21) is fixedly connected to a second cylinder (23) which is transmission-connected to the wheel seat (24).

5. The aluminum tube straightening device according to claim 4, characterized in that: Two groups of slide grooves (26) are provided on each wheel seat (24), and a detection wheel (25) is rotatably and slidably connected in each group of slide grooves (26). A pressure sensor (27) is fixedly connected at a position corresponding to the detection wheel (25) in each wheel seat (24) and is closely fitted with and relatively slidable to the detection wheel (25).

6. The aluminum tube straightening device according to claim 1, characterized in that: The three-jaw chuck (13) is fixedly connected to a driven wheel (36), the cabinet (10) is fixedly connected to a driving wheel (28), one side of the driving wheel (28) is fixedly connected to a second motor (30), a power output end of the second motor (30) is drivingly connected to the driving wheel (28), and the driving wheel (28) and the driven wheel (36) are drivingly connected via a transmission belt (31).

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