An induction heating upsetting device for an aluminum alloy cylinder

Abstract

The present invention provides an induction heating upsetting device for an aluminum alloy cylinder body, which includes a head seat, an upsetting mechanism, an upsetting support ring, an induction coil, a forming die, and a tail seat; the front end of the upsetting support ring is installed on the head seat, the upsetting mechanism is sleeved on the upsetting support ring, the induction coil is fixed at the front end of the forming die at the rear end position of the upsetting support ring, and the rear end of the forming die is fixed on the tail seat; the central axes of the upsetting support ring, the induction coil, and the forming die are located on the same straight line; the upsetting support ring can move axially relative to the induction coil; the shapes of the upsetting ring, the induction coil, and the forming die match. The present invention is extremely convenient for automation, has simple operation, the upsetting size and shape of the finished product are easy to control, and it can basically meet the upsetting requirements of all aluminum alloy cylinder bodies, and has great application prospects and market value.

Description

Technical Field

[0001] The present invention relates to an induction heating upsetting device for an aluminum alloy cylinder body. Background Art

[0002] In the process of welding the circumferential seam of the cylinder body by using friction stir welding technology and equipment, the main process parameter for controlling the weld formation - the downward pressure, will cause the phenomenon of wall thickness reduction of the aluminum alloy cylinder body. The reduction amount is generally between 0.2 mm and 0.5 mm, which will directly affect the weld formation quality and aesthetics. Especially in the ultra-high voltage / extra-high voltage power industry, if the downward pressure of friction stir welding is not properly controlled, breakdown will occur at the thinning part, resulting in safety accidents.

[0003] Regarding the problem of wall thickness reduction in friction stir welding, the commonly used treatment methods in China at present are as follows: Before friction stir welding, a traditional TIG / MIG wire filling welding method is used to build up a layer with a thickness of 0.5 mm - 1 mm and a width of 40 mm at the butt joint surface of the aluminum alloy cylinder body. This method not only has problems such as large heat input and welding deformation (different degrees of edge warping) at the interface of the aluminum alloy cylinder body, but also requires a cylinder body rotating device during the build-up welding process of the aluminum alloy cylinder body, with cumbersome processes and difficult operations, which directly affects the forming quality of the subsequent friction stir welded cylinder body. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an induction heating upsetting device for an aluminum alloy cylinder body. Based on the structure of an upsetting support ring, an induction coil, and a forming die, the induction heating upsetting device for an aluminum alloy cylinder body can achieve the effects of simple operation, easy control of the upsetting size and shape of the finished product, etc. while ensuring the forming quality.

[0005] The present invention is achieved through the following technical solutions.

[0006] An induction heating upsetting device for an aluminum alloy cylinder body provided by the present invention includes a headstock, an upsetting mechanism, an upsetting support ring, an induction coil, a forming die, and a tailstock; the front end of the upsetting support ring is installed on the headstock, the upsetting mechanism is sleeved on the upsetting support ring, an induction coil is fixed at the front end of the forming die at the rear end position of the upsetting support ring, and the rear end of the forming die is fixed on the tailstock; the central axes of the upsetting support ring, the induction coil, and the forming die are on the same straight line; the upsetting ring can move axially relative to the induction coil; the shapes of the upsetting ring, the induction coil, and the forming die match.

[0007] The headstock and the tailstock are installed on the workbench. The tailstock is fixedly installed on the workbench. There are multiple parallel guide rails at the position of the workbench at the bottom of the headstock. The extension line of the guide rails is parallel to the central axes of the upsetting support ring, the induction coil, and the forming die. The headstock is installed on the guide rails; there are two guide rails, namely the first linear guide rail and the second linear guide rail.

[0008] The side wall of the upsetting support ring is provided with guide rail holes, and the upsetting mechanism is installed on the upsetting support ring through the guide rail holes; the guide rail holes are composed of a third linear guide rail and a fourth linear guide rail that are parallel to each other; the third linear guide rail and the fourth linear guide rail are symmetrically arranged with respect to the central axis of the upsetting support ring.

[0009] A first servo motor and a first speed reducer are installed at the front end of the headstock. The first servo motor is fixed on the workbench. The first servo motor drives the first speed reducer, and the first speed reducer drives the headstock to move along the guide rail.

[0010] There is a first coil support frame and a second coil support frame fixed to the induction coil between the upsetting support ring and the induction coil. The front ends of the first coil support frame and the second coil support frame are fixed on the headstock.

[0011] The upsetting support ring is installed on the headstock through a first jaw clamping mechanism, and the forming die is installed on the tailstock through a second jaw clamping mechanism.

[0012] The upsetting mechanism is composed of a second servo motor, a first connecting seat, an upsetting ring, a first ball screw, a second speed reducer, a third servo motor, a third speed reducer, a second connecting seat, and a second ball screw; the second servo motor and the third servo motor are fixed at the front end position inside the upsetting support ring. A second speed reducer and a third speed reducer are respectively installed at the rear ends of the second servo motor and the third servo motor. A first ball screw and a second ball screw are respectively installed on the second speed reducer and the third speed reducer. The second servo motor and the third servo motor respectively drive the first ball screw and the second ball screw through the second speed reducer and the third speed reducer; the upsetting ring passes through the guide rail holes of the upsetting support ring and is fixed to the first ball screw and the second ball screw.

[0013] A pressing mechanism is further installed on the outer side wall of the forming die.

[0014] The beneficial effects of the present invention are as follows: It is extremely convenient for automation, the operation is simple, the upsetting size and shape of the finished product are easy to control, and it can basically meet the upsetting requirements of all aluminum alloy cylinders, and has great application prospects and market value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention;

[0016] Figure 2 is Figure 1 the top view of

[0017] Figure 3 is Figure 1 the side view of

[0018] In the figure: 1 - head seat, 2 - upsetting mechanism, 3 - upsetting support ring, 4 - induction coil, 5 - forming die, 6 - tail seat, 7 - workbench, 8 - first linear guide rail, 9 - second linear guide rail, 10 - first servo motor, 11 - first speed reducer, 12 - third linear guide rail, 13 - fourth linear guide rail, 17 - second servo motor, 14 - first coil support frame, 15 - second coil support frame, 16 - first jaw clamping mechanism, 18 - first connecting seat, 19 - upsetting ring, 20 - first ball screw, 21 - second speed reducer, 22 - third servo motor, 23 - third speed reducer, 24 - second connecting seat, 25 - second ball screw, 26 - third ball screw, 27 - second jaw clamping mechanism, 28 - pressing mechanism. Detailed implementation manner

[0019] The technical solution of the present invention will be further described below, but the scope of protection claimed is not limited thereto.

[0020] As Figures 1 to 3 An induction heating upsetting device for an aluminum alloy cylinder body shown in the figure includes a head seat 1, an upsetting mechanism 2, an upsetting support ring 3, an induction coil 4, a forming die 5, and a tail seat 6; the front end of the upsetting support ring 3 is installed on the head seat 1, the upsetting mechanism 2 is sleeved on the upsetting support ring 3, an induction coil 4 is fixed at the rear end position of the upsetting support ring 3 at the front end of the forming die 5, and the rear end of the forming die 5 is fixed on the tail seat 6; the central axes of the upsetting support ring 3, the induction coil 4, and the forming die 5 are located on the same straight line; the upsetting ring 19 can move axially relative to the induction coil 4; the shapes of the upsetting ring 19, the induction coil 4, and the forming die 5 match.

[0021] The head seat 1 and the tail seat 6 are installed on the workbench, the tail seat 6 is fixedly installed on the workbench, and there are multiple parallel guide rails at the position of the bottom of the head seat 1 on the workbench 7, and the extension lines of the guide rails are parallel to the central axis of the upsetting support ring 3, the induction coil 4, and the forming die 5, and the head seat 1 is installed on the guide rails; there are two guide rails, namely the first linear guide rail 8 and the second linear guide rail 9.

[0022] There are guide rail holes on the side wall of the upsetting support ring 3, and the upsetting mechanism 2 is installed on the upsetting support ring 3 through the guide rail holes; the guide rail holes are composed of the third linear guide rail 12 and the fourth linear guide rail 13 that are parallel to each other; the third linear guide rail 12 and the fourth linear guide rail 13 are symmetrically arranged relative to the central axis of the upsetting support ring 3.

[0023] The front end of the head seat 1 is installed with a first servo motor 10 and a first speed reducer 11, the first servo motor 10 is fixed on the workbench 7, the first servo motor 10 drives the first speed reducer 11, and the first speed reducer 11 drives the head seat 1 to move along the guide rail.

[0024] There is a first coil support frame 14 and a second coil support frame 15 fixed to the induction coil 4 between the upsetting support ring 3 and the induction coil 4. The front ends of the first coil support frame 14 and the second coil support frame 15 are fixed to the headstock 1.

[0025] The upsetting support ring 3 is mounted on the headstock 1 through a first jaw clamping mechanism 16, and the forming die 5 is mounted on the tailstock 6 through a second jaw clamping mechanism 27.

[0026] The upsetting mechanism 2 is composed of a second servo motor 17, a first connecting seat 18, an upsetting ring 19, a first ball screw 20, a second reduction gear 21, a third servo motor 22, a third reduction gear 23, a second connecting seat 24, and a second ball screw 25. The second servo motor 17 and the third servo motor 22 are fixed at the front end position inside the upsetting support ring 3. The second reduction gear 21 and the third reduction gear 23 are respectively mounted at the rear ends of the second servo motor 17 and the third servo motor 22. The first ball screw 20 and the second ball screw 25 are respectively mounted on the second reduction gear 21 and the third reduction gear 23. The second servo motor 17 and the third servo motor 22 respectively drive the first ball screw 20 and the second ball screw 25 through the second reduction gear 21 and the third reduction gear 23. The upsetting ring 19 passes through the guide hole of the upsetting support ring 3 and is fixed to the first ball screw 20 and the second ball screw 25.

[0027] A pressing mechanism 28 is also mounted on the outer side wall of the forming die 5.

[0028] Generally, the first jaw clamping mechanism 16 is distributed at 90° or 120° along the circumference of the upsetting support ring 3, and the second jaw clamping mechanism 27 is distributed at 90° or 120° along the circumference of the forming die 5.

[0029] The working process of the present invention is as follows:

[0030] Install the upsetting mechanism 2 on the upsetting support ring 3. The upsetting support ring 3 is fixed on the headstock 1 through the jaw clamping mechanism 16, and the induction coil 4 is installed on the headstock 1. The forming die 5 is fixed on the tailstock 6 through the second jaw clamping mechanism 27. Install the aluminum alloy cylinder to be upset in the forming die 5 and clamp it through the pressing mechanism 28. The headstock 1 moves horizontally through the first servo motor 10, the first linear guide 8, the second linear guide 9, the first reduction gear 11, the first jaw clamping mechanism 16, and the third ball screw 26 until the induction coil 4 wraps around the cylinder part to be upset. After the induction coil 4 is powered on for heating and then powered off, the upsetting ring 19 in the upsetting mechanism 2 moves forward under the driving action of the second servo motor 17, the third servo motor 22, the second reduction gear 21, the third reduction gear 23, the first ball screw 20, the second ball screw 25, the third linear guide 12, the fourth linear guide 13, and the first connecting seat 18 and the second connecting seat 24, pushing the heated and plasticized aluminum alloy into the interior of the forming die 5 until the upsetting ring 19 is closed with the forming die 5. After holding the pressure for a period of time, both the upsetting mechanism 2 and the headstock 1 move in the reverse direction to the farthest position, and the upset cylinder is taken out from the forming die 5, and the upsetting of the cylinder end face is completed.

Claims

1. An induction heating upsetting device for an aluminum alloy cylinder body, comprising a head seat (1), an upsetting mechanism (2), an upsetting support ring (3), an induction coil (4), a forming die (5), and a tail seat (6). It is characterized in that: The front end of the upsetting support ring (3) is installed on the head seat (1), the upsetting mechanism (2) is sleeved on the upsetting support ring (3), an induction coil (4) is fixed at the rear end position of the upsetting support ring (3) at the front end of the forming die (5), and the rear end of the forming die (5) is fixed on the tail seat (6); the central axes of the upsetting support ring (3), the induction coil (4), and the forming die (5) are located on the same straight line. There is a first coil support frame (14) and a second coil support frame (15) fixed to the induction coil (4) between the upsetting support ring (3) and the induction coil (4), and the front ends of the first coil support frame (14) and the second coil support frame (15) are fixed on the head seat (1). There are guide rail holes on the side wall of the upsetting support ring (3), and the upsetting mechanism (2) is installed on the upsetting support ring (3) through the guide rail holes; the guide rail holes are composed of a third linear guide rail (12) and a fourth linear guide rail (13) that are parallel to each other; the third linear guide rail (12) and the fourth linear guide rail (13) are symmetrically arranged relative to the central axis of the upsetting support ring (3). The upsetting mechanism (2) is composed of a second servo motor (17), a first connecting seat (18), an upsetting ring (19), a first ball screw (20), a second reduction gear (21), a third servo motor (22), a third reduction gear (23), a second connecting seat (24), and a second ball screw (25); the second servo motor (17) and the third servo motor (22) are fixed at the front end position inside the upsetting support ring (3), the second reduction gear (21) and the third reduction gear (23) are respectively installed at the rear ends of the second servo motor (17) and the third servo motor (22), the first ball screw (20) and the second ball screw (25) are respectively installed on the second reduction gear (21) and the third reduction gear (23), and the second servo motor (17) and the third servo motor (22) respectively drive the first ball screw (20) and the second ball screw (25) through the second reduction gear (21) and the third reduction gear (23); the upsetting ring (19) passes through the guide rail holes of the upsetting support ring (3) and is fixed to the first ball screw (20) and the second ball screw (25); the upsetting ring (19) can move axially relative to the induction coil (4); the shapes of the upsetting ring (19), the induction coil (4), and the forming die (5) match.

2. The induction heating upsetting device for an aluminum alloy cylinder body according to claim 1, It is characterized in that: The head seat (1) and the tail seat (6) are installed on the workbench, the tail seat (6) is fixedly installed on the workbench, there are multiple parallel guide rails at the position of the bottom of the head seat (1) on the workbench, the extension lines of the guide rails are parallel to the central axes of the upsetting support ring (3), the induction coil (4), and the forming die (5), and the head seat (1) is installed on the guide rails; there are two guide rails, namely a first linear guide rail (8) and a second linear guide rail (9).

3. The induction heating upsetting device for aluminum alloy cylinder as described in claim 2, characterized in that: a first servo motor (10) and a first speed reducer (11) are installed at the front end of the headstock (1), the first servo motor (10) is fixed on the workbench (7), the first servo motor (10) drives the first speed reducer (11), and the first speed reducer (11) drives the headstock (1) to move along the guide rail.

4. The induction heating upsetting device for aluminum alloy cylinder as described in claim 1, characterized in that: the upsetting support ring (3) is installed on the headstock (1) through a first jaw clamping mechanism (16), and the forming die (5) is installed on the tailstock (6) through a second jaw clamping mechanism (27).

5. The induction heating upsetting device for aluminum alloy cylinder as described in claim 1, characterized in that: a pressing mechanism (28) is further installed on the outer side wall of the forming die (5).

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