Bending device for aluminum-zinc alloy machining

Abstract

The invention relates to the technical field of aluminum-zinc alloy machining, and discloses a bending device for aluminum-zinc alloy machining, which comprises a working table, a two-axis moving part arranged on the working table and a pipe clamping seat arranged on the two-axis moving part, a mounting bracket is fixed on one side of the working table, a movable bracket is rotatably mounted on the mounting bracket, and the movable bracket is fixed on the working table. A base plate is fixedly arranged on the movable support, a variable-diameter pipe bending die is arranged on the base plate, a male chuck is arranged on the movable support in a sliding mode, and a female chuck used for being matched with the male chuck to clamp a pipe is arranged on the side, close to the male chuck, of the variable-diameter pipe bending die. The device further comprises a first driving motor, a driving shaft rotationally penetrating through the mounting support and a reduction gear set in transmission connection with the first driving motor and the driving shaft, the movable support is fixedly connected with the driving shaft, the variable-diameter pipe bending mold can rotate only by being fixed to the mounting base plate, and therefore the variable-diameter pipe bending mold can be conveniently mounted and dismounted; and therefore, the bending radius can be conveniently changed without limiting the number of times.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum-zinc alloy processing, and particularly to a bending device for aluminum-zinc alloy processing. Background Art

[0002] Aluminum-zinc alloy can be machined by cutting with a relatively high cutting speed and a relatively deep depth of cut, and is widely used in metal parts.

[0003] Tubular parts made of aluminum-zinc alloy are generally bent by using a bending device in the prior art. Taking the Chinese invention patent document with the application publication number: CN 115365345 A as an example, it discloses a bending device for processing aluminum alloy profiles, including a base, on the upper end of the base, a fixed first processing table, a movable second processing table and a third processing table are arranged in sequence, and a control box with a control panel, a support column mechanism capable of adjusting the bending angle is arranged on the first processing table, an electric synchronous lifter capable of supporting and controlling the longitudinal movement of the second processing table is arranged between the second processing table and the base, an electric push rod one capable of controlling the reciprocating sliding of the third processing table is also arranged on the second processing table, an automatic conveying device capable of clamping and conveying the aluminum alloy profile and a bending device capable of pressing the aluminum alloy profile to make it bend are arranged on the upper end of the second processing table.

[0004] The above-mentioned invention patent mainly sets three toroidal surfaces with different diameters on the support column, and then controls the lifting of the support column, so that the pipe is bent on different toroidal surfaces, thereby adjusting the bending radius. However, sometimes a pipe requires more than 4 bending radii, and this device is difficult to achieve processing. Summary of the Invention

[0005] This application aims to solve or improve the problems in the above background art. For this reason, the present invention provides a bending device for aluminum-zinc alloy processing.

[0006] The technical solution of the present invention is as follows: A bending device for aluminum-zinc alloy processing, including a workbench, a two-axis moving component arranged on the workbench, and a pipe clamping seat arranged on the two-axis moving component. An installation bracket is fixed on one side of the workbench. A movable bracket is rotatably installed on the installation bracket. A substrate is fixedly arranged on the movable bracket. A variable-diameter pipe bending die is arranged on the substrate. A male chuck is slidably arranged on the movable bracket. A female chuck for cooperating with the male chuck to clamp the pipe is arranged on one side of the variable-diameter pipe bending die close to the male chuck; It also includes a driving motor one, a driving shaft rotatably penetrating the installation bracket, and a reduction gear set drivingly connecting the driving motor one and the driving shaft. The movable bracket is fixedly connected to the driving shaft. An auxiliary clamping structure for clamping the pipe is arranged on one side of the workbench.

[0007] Preferably, the variable-diameter elbow die is a circular plate structure with an arc-shaped groove on the side, which is detachably arranged on the substrate, and the female chuck is integrally connected with the circular plate structure.

[0008] Preferably, the variable-diameter elbow die is a circular plate structure with an arc-shaped groove on the side, which is detachably arranged on the substrate, and a female chuck is slidably installed on one side of the substrate through a linear telescopic member.

[0009] Preferably, the variable-diameter elbow die includes a gear plate rotatably installed on the substrate and an adjusting plate arranged on the gear plate and fixed to the substrate. A plurality of second chutes are radially and uniformly installed on the adjusting plate, and a resisting rod is slidably installed in each of the second chutes. A plurality of extrusion grooves are radially and uniformly installed on the gear plate, and the bottom end of the resisting rod is slidably embedded in the extrusion groove. A plurality of clamping plates are fixedly installed on the adjusting plate at intervals through columns. A plurality of locking grooves are radially and uniformly installed on the clamping plates, and ratchet teeth are provided in the locking grooves. The top end of the resisting rod is slidably embedded in the locking groove, and an active tooth cooperating with the ratchet teeth is movably installed at the top end of the resisting rod through an elastic member.

[0010] Preferably, an extension part is formed on one side of the substrate, a driving motor two is fixedly installed at the bottom of the extension part, a driving gear is rotatably installed on the extension part, the driving gear meshes with the gear plate, and the output shaft of the driving motor two is in transmission connection with the gear plate.

[0011] Preferably, the movable bracket is a U-shaped bracket, and the two ends of the U-shaped bracket are respectively rotatably connected to the corresponding two side surfaces of the mounting bracket.

[0012] Preferably, a first chute is provided on the movable bracket, and a sliding rod is slidably installed in the first chute. The male chuck is fixedly installed on the sliding rod to move away from or close to the female chuck; A driving cylinder is also fixedly installed on the movable bracket, and the output end of the driving cylinder is fixedly connected to the sliding rod.

[0013] Preferably, the two-axis moving member includes a bottom plate, a transverse guide rail arranged between the workbench and the bottom plate, and a vertical guide rail arranged between the bottom plate and the pipe clamping seat.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, a substrate and a movable bracket are fixedly and rotatably mounted on a mounting bracket. Then, a variable-diameter pipe bending die is fixedly installed at the end of a pipe by using a female chuck and a male chuck. Subsequently, the pipe is bent by rotating the variable-diameter pipe bending die. In this way, the variable-diameter pipe bending die is exposed at the topmost position, and the variable-diameter pipe bending die can be rotated only by being fixedly installed on the substrate, which facilitates the installation and disassembly of the variable-diameter pipe bending die, and further facilitates changing the bending radius without limitation of the number of times. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the variable-diameter pipe bending die of the present invention when it is in the first embodiment; Figure 2 It is a schematic diagram of the structure of the variable-diameter pipe bending die of the present invention when it is in the second embodiment; Figure 3 It is a schematic diagram of the structure of the variable-diameter pipe bending die of the present invention from one angle when it is in the third embodiment; Figure 4 It is a schematic diagram of the structure of the variable-diameter pipe bending die of the present invention from another angle when it is in the third embodiment; Figure 5 It is a schematic diagram of the gear plate of the variable-diameter pipe bending die of the present invention when it is in the third embodiment; Figure 6 It is a schematic diagram of the working principle of the variable-diameter pipe bending die of the present invention when it is in the third embodiment.

[0017] Reference Signs: 1, workbench; 2, two-axis moving member; 3, pipe clamping seat; 4, mounting bracket; 5, movable bracket; 6, substrate; 7, variable-diameter pipe bending die; 8, linear telescopic member; 9, female chuck; 10, male chuck; 11, first driving motor; 12, driving shaft; 13, reduction gear set; 14, first chute; 15, sliding rod; 16, driving cylinder; 17, bottom plate; 18, transverse guide rail; 19, vertical guide rail; 20, auxiliary clamping structure; 21, gear plate; 22, adjusting plate; 23, second chute; 24, abutting rod; 25, extrusion groove; 26, support column; 27, clamping plate; 28, locking groove; 29, ratchet tooth; 30, elastic member; 31, movable tooth; 32, extension portion; 33, second driving motor; 34, driving gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0019] The components of the embodiments of the present invention usually described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention.

[0020] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0023] The present invention aims to solve the problem that the adjustable bending radius of the support column is limited.

[0024] Therefore, the present invention provides a bending device for processing aluminum-zinc alloy, including a workbench 1, a two-axis moving member 2 provided on the workbench 1, and a pipe clamping seat 3 provided on the two-axis moving member 2. An installation bracket 4 is fixed on one side of the workbench 1. A movable bracket 5 is rotatably installed on the installation bracket 4. A base plate 6 is fixedly provided on the movable bracket 5. A variable-diameter pipe bending die 7 is provided on the base plate 6. A male chuck 10 is slidably provided on the movable bracket 5. A female chuck 9 for cooperating with the male chuck 10 to clamp the pipe is provided on one side of the variable-diameter pipe bending die 7 close to the male chuck 10. It also includes a driving motor 11, a driving shaft 12 rotatably penetrating through the installation bracket 4, and a reduction gear set 13 drivingly connecting the driving motor 11 and the driving shaft 12. The movable bracket 5 is fixedly connected to the driving shaft 12. An auxiliary clamping structure 20 for clamping the pipe is provided on one side of the workbench 1.

[0025] Reference Figures 1 to 6 , the working principle of the bending operation of the present invention: First, the left end of the aluminum-zinc alloy pipe to be bent is clamped in the pipe clamping seat 3. Then, through the two-axis moving member 2, the right end of the aluminum-zinc alloy pipe is positioned inside the female chuck 9, that is, the right end of the aluminum-zinc alloy pipe is positioned at the tangent position of the pipe bending die. Then, the male chuck 10 is moved to cooperate with the female chuck 9 to clamp the right end of the aluminum-zinc alloy pipe. Then, the aluminum-zinc alloy pipe is clamped by the auxiliary clamping structure 20 (mainly for limiting but not clamping). The driving motor 11 is controlled to rotate. The output of the driving motor 11 is reduced in speed and increased in torque through the reduction gear set 13. Then, the driving shaft 12 rotates a preset angle. The driving shaft 12 drives the movable bracket 5 fixedly connected thereto to rotate a preset angle. The movable bracket 5 drives the base plate 6 and the variable-diameter pipe bending die 7 fixedly connected thereto to rotate. And the male chuck 10, the female chuck 9, and the right end of the aluminum-zinc alloy pipe clamped by the two also rotate a preset angle clockwise along with the variable-diameter pipe bending die 7. At this time, through the two-axis moving member 2, the aluminum-zinc alloy pipe is slightly sent out along the tangent direction of the variable-diameter pipe bending die 7. At this time, the variable-diameter pipe bending die 7 will rotate clockwise while squeezing the aluminum-zinc alloy pipe to bend along the outer edge of the variable-diameter pipe bending die 7.

[0026] The present invention provides three embodiments for changing the bending radius direction of the variable-diameter pipe bending die 7: Embodiment 1: The variable-diameter pipe bending die 7 is a circular plate structure with an arc-shaped groove on the side, which is detachably provided on the base plate 6. The female chuck 9 is integrally connected with the circular plate structure.

[0027] In this embodiment, the female chuck 9 and the circular plate structure are integrally cast, and then the overall structure formed by the two is manufactured in different specifications (diameters), and the replacement of the bending diameter is realized in the form of the overall structure.

[0028] The ways of detachable connection include but are not limited to fixing with threaded parts, snap fixing, etc.

[0029] Embodiment Two: Reference Figure 2 , the variable-diameter elbow mold 7 is a circular plate structure with an arc-shaped groove on the side and is detachably arranged on the substrate 6, and a female chuck 9 is slidably installed on one side of the substrate 6 through a linear telescopic member 8.

[0030] In this embodiment, the female chuck 9 and the variable-diameter elbow mold 7 are independent structures. Only the variable-diameter elbow mold 7 needs to be manufactured in different specifications (diameters), and the replacement of the bending diameter is realized by replacing the variable-diameter elbow mold 7.

[0031] The ways of detachable connection include but are not limited to fixing with threaded parts, snap fixing, etc.

[0032] However, it should be noted that due to different specifications of the variable-diameter elbow mold 7, the adjacent side of the female chuck 9 and the variable-diameter elbow mold 7 may not be completely fitted, but only need to ensure that the clamping surface of the female chuck 9 is located in the tangential direction of the variable-diameter elbow mold 7.

[0033] Embodiment Three: The variable-diameter elbow mold 7 includes a gear plate 21 rotatably installed on the substrate 6 and an adjusting plate 22 arranged on the gear plate 21 and fixed to the substrate 6. A plurality of second chutes 23 are evenly installed radially on the adjusting plate 22, and a pressing rod 24 is slidably installed in each of the second chutes 23. A plurality of pressing grooves 25 are evenly installed radially on the gear plate 21, and the bottom end of the pressing rod 24 is slidably embedded in the pressing groove 25. Positioning plates 27 are fixedly installed on the adjusting plate 22 at intervals through columns 26. A plurality of locking grooves 28 are evenly installed radially on the positioning plates 27, and ratchet teeth 29 are formed in the locking grooves 28. The top end of the pressing rod 24 is slidably embedded in the locking groove 28. The top end of the pressing rod 24 is also movably installed with a movable tooth 31 that cooperates with the ratchet teeth 29 through an elastic member 30; an extension portion 32 is formed on one side of the substrate 6, a driving motor two 33 is fixedly installed at the bottom of the extension portion 32, a driving gear 34 is rotatably installed on the extension portion 32, the driving gear 34 meshes with the gear plate 21, and the output shaft of the driving motor two 33 is in transmission connection with the gear plate 21. In Embodiment Three, the installation method of the female chuck 9 is basically the same as that in Embodiment Two.

[0034] Reference Figures 3 to 6 , the working principle of this embodiment is: First, the drive gear 34 is rotated by the second drive motor 33, and then the drive gear 34 drives the gear plate 21 meshing with it to rotate. Then, due to the rotation of the gear plate 21, the extrusion groove 25 on the gear plate 21 extrudes the abutting rod 24 to expand outward. Since the abutting rod 24 is also arranged in the second chute 23, the abutting rod 24 is restricted to slide linearly in the second chute 23. Due to the sliding of the abutting rod 24, the top end of the abutting rod 24 also slides linearly. The cooperation of the elastic member 30, the ratchet tooth 29 and the movable tooth 31 forms a one-way sliding mechanism to ensure the position locking after the abutting rod 24 expands outward. At this time, a structure similar to a circle is formed among several abutting rods 24, so that the bending of pipes with low precision can be attached to it for bending.

[0035] When the second drive motor 33 rotates in the reverse direction, the second chute 23 of the adjusting plate 22 rotates, causing the abutting rod 24 to have a tendency to retract. There is a spring (not shown in the figure) arranged in the second chute 23, which will drive the abutting rod 24 to retract. However, the cooperation of the elastic member 30, the ratchet tooth 29 and the movable tooth 31 forms a one-way sliding mechanism that needs to be in contact. The movable tooth 31 can be disassembled in advance. When the abutting rod 24 retracts to the innermost position, then the movable tooth 31 is reinstalled, and then the above steps are repeated to re-adjust the diameter of the circle formed by the abutting rods 24.

[0036] In the present invention, the movable bracket 5 is a U-shaped bracket, and the two ends of the U-shaped bracket are respectively rotatably connected to the corresponding two side surfaces of the mounting bracket 4, so that the installation is more stable.

[0037] In the present invention, a first chute 14 is provided on the movable bracket 5, and a sliding rod 15 is slidably installed in the first chute 14. The male chuck 10 is fixedly installed on the sliding rod 15 to move away from or close to the female chuck 9; a drive cylinder 16 is also fixedly installed on the movable bracket 5, and the output end of the drive cylinder 16 is fixedly connected to the sliding rod 15. In this way, the clamping or loosening of the male chuck 10 and the female chuck 9 can be realized.

[0038] In the present invention, the two-axis moving member 2 includes a bottom plate 17, a horizontal guide rail 18 arranged between the workbench 1 and the bottom plate 17, and a vertical guide rail 19 arranged between the bottom plate 17 and the pipe clamping seat 3. In this way, the bottom plate 17 can have a basis for sliding through the vertical guide rail 19 and the horizontal guide rail 18, and then the adjustment and locking are realized through a servo motor, gears and racks.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bending device for aluminum-zinc alloy processing, comprising a workbench (1), a two-axis moving component (2) arranged on the workbench (1), and a pipe clamping seat (3) arranged on the two-axis moving component (2), characterized in that: A mounting bracket (4) is fixed on one side of the workbench (1); a movable bracket (5) is rotatably mounted on the mounting bracket (4); a base plate (6) is fixedly mounted on the movable bracket (5); a variable diameter pipe bending die (7) is mounted on the base plate (6); a male chuck (10) is slidably mounted on the movable bracket (5); a female chuck (9) for cooperating with the male chuck (10) to clamp a pipe is mounted on a side of the variable diameter pipe bending die (7) close to the male chuck (10); It also includes a driving motor (11), a driving shaft (12) that rotates and passes through the mounting bracket (4), and a reduction gear set (13) that transmits and connects the driving motor (11) and the driving shaft (12); the movable bracket (5) is fixedly connected to the driving shaft (12); and an auxiliary clamping structure (20) for clamping pipes is provided on one side of the workbench (1).

2. A bending device for aluminum-zinc alloy processing according to claim 1, characterized in that: The variable diameter pipe bending die (7) is a circular plate structure with an arc-shaped groove on the side edge which is detachably arranged on the base plate (6), and the female chuck (9) is connected to the circular plate structure as a whole.

3. The bending device for aluminum-zinc alloy processing according to claim 1, characterized in that: The variable diameter pipe bending die (7) is a circular plate structure with an arc-shaped groove on the side edge which is detachably arranged on the base plate (6), and a female chuck (9) is slidably mounted on one side of the base plate (6) via a linear telescopic component (8).

4. The bending device for aluminum-zinc alloy processing according to claim 1, characterized in that: The variable diameter pipe bending die (7) comprises a gear plate (21) rotatably mounted on the base plate (6) and an adjustment plate (22) arranged on the gear plate (21) and fixed to the base plate (6); the adjustment plate (22) is radially and evenly mounted with a plurality of second slide grooves (23); each of the second slide grooves (23) is slidably mounted with a push rod (24); the gear plate (21) is radially and evenly mounted with a plurality of extrusion grooves (25); the bottom end of the push rod (24) is slidably embedded in the extrusion groove (25); a positioning plate (27) is fixedly mounted on the adjustment plate (22) at intervals via a support (26); a plurality of locking grooves (28) are radially and evenly mounted on the positioning plate (27); ratchet teeth (29) are provided in the locking grooves (28); the top end of the push rod (24) is slidably embedded in the locking groove (28); and a movable tooth (31) cooperating with the ratchet teeth (29) is movably mounted on the top end of the push rod (24) via an elastic member (30).

5. The bending device for aluminum-zinc alloy processing according to claim 4, characterized in that: An extension portion (32) is formed on one side of the base plate (6), a second drive motor (33) is fixedly mounted on the bottom of the extension portion (32), a drive gear (34) is rotatably mounted on the extension portion (32), the drive gear (34) is meshed with the gear plate (21), and an output shaft of the second drive motor (33) is drivingly connected to the gear plate (21).

6. A bending device for aluminum-zinc alloy processing according to claim 4, characterized in that: The movable bracket (5) is a U-shaped bracket, and the two ends of the U-shaped bracket are rotatably connected to the corresponding two side surfaces of the mounting bracket (4).

7. The bending device for aluminum-zinc alloy processing according to claim 1, characterized in that: The movable bracket (5) is provided with a slide groove (14), a slide rod (15) is slidably mounted in the slide groove (14), and the male chuck (10) is fixedly mounted on the slide rod (15) to move away from or closer to the female chuck (9); A driving cylinder (16) is also fixedly mounted on the movable bracket (5), and an output end of the driving cylinder (16) is fixedly connected to the sliding rod (15).

8. The bending device for aluminum-zinc alloy processing according to claim 1, characterized in that: The two-axis moving component (2) comprises a base plate (17), a transverse guide rail (18) arranged between the workbench (1) and the base plate (17), and a vertical guide rail (19) arranged between the base plate (17) and the pipe clamping seat (3).

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