A capacitor shell forming device

Abstract

The present invention discloses a capacitor shell forming device, which belongs to the technical field of metal tube forming processing devices, and includes: a mounting plate, a slider, a strut assembly, a rotating rod and a spring probe. The mounting plate is provided with a plurality of slide grooves along a circumferential array, wherein at least one pair of the slide grooves are in the same straight line; sliders are provided in the slide grooves; the sliders in the two slide grooves in one pair in the same straight line are provided with a strut assembly, which includes a pair of inner struts, and the strut assembly is also provided with an adjustment element for adjusting the distance between the two inner struts; the remaining sliders are all penetrated with a rotating rod perpendicular to the mounting plate, which is arranged to rotate around an axis, and the rotating rods are all arranged to move along the axis direction; at least one spring probe is arranged between the two inner struts, and the probe of the spring probe faces the outside of the mounting plate, which is used to detect the position of the joint. This scheme can automatically detect and adjust the position of the circular tube structure, which can effectively improve the forming efficiency of the capacitor shell and simplify the forming process.

Description

Technical Field

[0001] The invention belongs to the technical field of metal tube forming processing devices, and in particular relates to a capacitor shell forming device. Background Art

[0002] The metal casing of some capacitors is made of sheet metal, such as Figure 1 As shown, when making this type of shell, the rectangular sheet metal is first wound into a circular tube structure, the joints are fixed by welding, and then the circular tube is expanded into a rectangular tube structure using an expansion device. In order to ensure structural strength and the same appearance, the joint is usually set on the narrow side of the rectangular tube. The existing expansion device cannot identify and adjust the position of the circular tube. Therefore, in order to achieve the above purpose, the existing expansion device needs to manually place the circular tube during expansion, and manually adjust the circular tube so that the joint is facing the predetermined direction of the expansion device, and in the early stage of expansion, the circular tube needs to be supported by hand to prevent the circular tube from rotating. This type of device has low molding efficiency for the shell, and the process is cumbersome. Summary of the invention

[0003] In order to solve the deficiencies of the prior art, the present invention provides a capacitor housing forming device, which can automatically detect and adjust the position of a round tube structure, does not require manual support during the forming process, can effectively improve the forming efficiency of the capacitor housing, and simplifies the forming process.

[0004] In order to achieve the purpose of the present invention, the following scheme is proposed:

[0005] A capacitor shell forming device comprises: a mounting plate, a slider, a support rod assembly, a rotating rod and a spring probe.

[0006] The mounting plate is provided with a plurality of radially arranged slide grooves along a circumferential array, wherein at least one pair of the slide grooves is in the same straight line; sliders are arranged in each of the slide grooves, and all the sliders move synchronously toward the center or the outside of the mounting plate;

[0007] A pair of sliders in two slide grooves in the same straight line are provided with a support rod assembly, which includes a pair of inner support rods perpendicular to the mounting plate and located below the mounting plate. The support rod assembly is also provided with an adjustment element for adjusting the distance between the two inner support rods, and the adjustment direction of the distance between the inner support rods is perpendicular to the length direction of the corresponding slide groove;

[0008] The remaining slide blocks are all provided with rotating rods perpendicular to the mounting plate, which are arranged to rotate around the axis, and the rotating rods are all arranged to move along the axis direction;

[0009] At least one spring probe is arranged between the two inner support rods, and the probe of the spring probe faces the outside of the mounting plate, and is used for detecting the joint position.

[0010] The beneficial effects of the present invention are as follows: the present invention utilizes a plurality of rotating rods and a pair of inner support rods to compress and fix the inner wall of the round tube, thereby preventing the round tube from falling off, and drives the round tube to rotate through the rotating rods; during the rotation process, the position of the joint is detected by a spring probe, and the spring probe is arranged between one of the pairs of inner support rods, so that the joint is located on the side wall corresponding to the short side of the formed rectangular tube; the support rod assembly and the rotating rod adopt the same mechanism to control the opening and closing, thereby effectively simplifying the overall structure of the device, and the rotating rod is arranged by lifting and lowering so that it can participate in the work during clamping and positioning, and can be separated from the round tube in time during the forming process to avoid affecting the control of the round tube forming by the support rod assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0012] Figure 1 The schematic diagram of the structure of the capacitor housing before and after forming is shown.

[0013] Figure 2 A top view showing the overall structure of the present application.

[0014] Figure 3 A bottom view showing the overall structure of the present application.

[0015] Figure 4 A schematic diagram of the bottom structure of the present application is shown when the support rod assembly is expanded.

[0016] Figure 5 A schematic diagram of a preferred structure of the support rod assembly is shown.

[0017] Markings in the figure: mounting plate -1, slide groove -11, connecting plate -12, connecting rod -13, screw rod -14, slider -2, support rod assembly -3, inner support rod -31, accommodating groove -311, slide rail -32, push rod -33, rocker arm -34, guide plate -35, compression spring -36, rotating rod -4, spring probe -5, ring -6, guide rod -61, strip hole -611, sliding sleeve -62, sliding rod -63, pipe sleeve -64, support spring -65, pulley -66, annular belt -67, driving motor -68. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the implementation modes of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] like Figures 2 to 5 As shown, a capacitor housing molding device includes: a mounting plate 1, a slider 2, a support rod assembly 3, a rotating rod 4 and a spring probe 5.

[0020] The mounting plate 1 is provided with a plurality of radially arranged slide grooves 11 along a circumferential array, wherein at least one pair of the slide grooves 11 are in the same straight line. Since the slide grooves 11 are distributed along the circumference of the mounting plate 1, the two slide grooves 11 in the same straight line will be respectively located on both sides of the mounting plate 1; slide blocks 2 are provided in the slide grooves 11, and all the slide blocks 2 move synchronously toward the center or the outside of the mounting plate 1. Specifically, a telescopic device may be provided on the outside of the mounting plate 1 corresponding to each slide groove 11 for synchronously controlling the slide blocks 2 in the slide grooves 11.

[0021] A pair of sliders 2 in two slide grooves 11 that are in the same straight line are provided with a support rod assembly 3, which includes a pair of inner support rods 31 that are perpendicular to the mounting plate 1 and are located below the mounting plate 1. The support rod assembly 3 is also provided with an adjusting element for adjusting the distance between the two inner support rods 31, and the adjustment direction of the distance between the inner support rods 31 is perpendicular to the length direction of the corresponding slide groove 11; specifically, a plurality of bidirectional cylinders are arranged between the two inner support rods 31, and the movable ends at both ends of the bidirectional cylinders are respectively used to drive the two inner support rods 31.

[0022] The remaining sliders 2 are all provided with a rotating rod 4 perpendicular to the mounting plate 1, which is rotatably arranged around the axis, and the rotating rod 4 is movably arranged along the axis direction. Specifically, the rotating rod 4 can be coaxially arranged on a main shaft of a motor, and then the motor is installed on a lifting device, and the lifting device is installed on the corresponding slider 2, so that the lifting and lowering of the motor can be controlled by the lifting device, so that the rotating rod 4 moves along the axis, and the rotating rod 4 is driven to rotate by the motor to achieve the purpose of rotating the rotating rod 4 around the axis.

[0023] At least one spring probe 5 is disposed between the two inner support rods 31 , and the probe of the spring probe 5 faces the outside of the mounting plate 1 , for detecting the joint position.

[0024] The working process includes three steps: clamping, positioning and shaping;

[0025] Clamp, move the rotating rod 4 along the axial direction so that its lower end protrudes from the bottom of the mounting plate 1, and the two inner support rods 31 of the support rod assembly 3 are gathered toward the middle; all the sliders 2 are gathered toward the middle of the mounting plate 1; the round tube is sleeved outside the circular contour enclosed by the inner support rods 31 and the rotating rod 4; all the sliders 2 are synchronously moved toward the outside of the mounting plate 1 until the inner support rods 31 and the rotating rod 4 are driven to abut against the inner wall of the round tube, so as to achieve the purpose of clamping and fixing the round tube, at which time the probe of the spring probe 5 abuts against the inner wall of the round tube.

[0026] Positioning is performed to rotate the rotating rod 4 around the axis, thereby driving the round tube to rotate. When the spring probe 5 detects the joint of the round tube, the rotating rod 4 stops rotating. The spring probe 5 mainly uses the change of the probe telescopic position to determine the position of the joint. If the weld at the joint is located inside the round tube, the probe will retract into the spring probe 5. When the joint of the inner wall of the round tube is not welded, the probe will extend out of the spring probe 5. Regardless of whether the probe is retracted or extended, it indicates that the position of the joint is detected.

[0027] After shaping, move the rotating rod 4 along the axis toward the top of the mounting plate 1, so that the lower end of the rotating rod 4 is separated from the round tube, and the lower end of the rotating rod 4 is located inside the corresponding slider 2, so that in subsequent work, the rotating rod 4 can always move together with the corresponding slider 2 to prevent the rotating rod 4 from being inconvenient to reconnect after being separated from the slider 2; expand the two inner support rods 31 to a predetermined width, and use them to further tighten the round tube to prevent the round tube from falling, and then move the slider 2 synchronously toward the outside of the mounting plate 1. During this process, the round tube will gradually change from a circle to a rectangular tube, and the parts where the four inner support rods 31 of the two groups of support rod assemblies 3 contact the round tube will form the four corners of the rectangular tube, among which the parts where the two inner support rods 31 located in the same group of support rod assemblies 3 correspond to the rectangular tube are in the width direction of the rectangular tube, so that the seam is controlled on the side wall corresponding to the width direction of the rectangular tube.

[0028] Preferably, Figure 3 , Figure 4 As shown, a connecting plate 12 is coaxially provided below the mounting plate 1, and is movable along the axial direction of the mounting plate 1. A connecting rod 13 is hingedly provided between the connecting plate 12 and the slider 2. When the connecting plate 12 moves along the axis of the mounting plate 1, all the sliders 2 can be driven to move synchronously in the corresponding slide grooves 11 at the same time through the connecting rod 13.

[0029] As a preferred structure, the connecting plate 12 is driven by a telescopic cylinder, which is arranged on the top surface of the mounting plate 1. The movable rod of the telescopic cylinder vertically passes through the mounting plate 1, and the lower end of the movable rod of the telescopic cylinder is connected to the connecting plate 12. The telescopic cylinder can also be arranged on the bottom plate of the mounting plate 1, and the lower end of the movable rod of the telescopic cylinder is connected to the connecting plate 12.

[0030] As a further preferred structure, Figure 3 , Figure 4 As shown, a screw rod 14 is coaxially passed downwardly through the mounting plate 1, and a screw motor for driving the screw rod 14 to rotate is provided on the top of the mounting plate 1. The screw rod 14 passes through the connecting plate 12 by means of threaded fitting. When the screw motor drives the screw rod 14 to rotate, the connecting plate 12 can be driven to move along the axial direction of the mounting plate 1, thereby driving the slider 2 to move synchronously through the connecting rod 13.

[0031] Preferably, Figure 2 , Figure 4As shown, a circular ring 6 is coaxially provided above the mounting plate 1, and a guide rod 61 is provided above the slider 2 corresponding to the mounting of the rotating rod 4, and its length direction is consistent with the direction of the slide groove 11 where the corresponding slider 2 is located. The guide rod 61 is provided with a strip hole 611 along the length direction, and its opening extension direction is perpendicular to the mounting plate 1, and a sliding sleeve 62 is slidably sleeved on the guide rod 61. The upper end of the rotating rod 4 passes through the corresponding strip hole 611 above and is penetrated by the corresponding sliding sleeve 62. The sliding sleeve 62 is provided with a driving member for driving the rotating rod 4 to rotate around the axis. The circular ring 6 is arranged to move along the axis direction, so that all the rotating rods 4 can be synchronously driven to move along the axis by moving the circular ring 6, so as to synchronously pull all the rotating rods 4 out of the round tube, and when the slider 2 moves in the slide groove 11, the rotating rod 4 can drive the sliding sleeve 62 to move along the guide rod 61; and the use of the slider 2 and the sliding sleeve 62 to simultaneously connect the rotating rod 4 can further improve the stability of the mounting structure of the rotating rod 4 and prevent the rotating rod 4 from tilting.

[0032] Preferably, the driving members are motors respectively arranged on the sliding sleeves 62 , and the main shafts of the motors are connected to the corresponding rotating rods 4 .

[0033] Further preferably, Figure 2 , Figure 4As shown, at least one slide bar 63 is provided on the outer side of the ring 6, which is arranged along the radial direction of the ring 6, and a sleeve 64 is slidably provided on the slide bar 63, and a support spring 65 is sleeved on the slide bar 63, which is located between the sleeve 64 and the ring 6; the driving member includes a pulley 66 arranged at the same height as the top of the sleeve 64 and the sliding sleeve 62, and the pulley 66 on the sliding sleeve 62 is coaxially connected to the corresponding rotating rod 4, and the pulley 66 can also be arranged on the upper end of the corresponding rotating rod 4, and the pulley 66 is connected to the inside of an annular belt 67. The driving member also includes a driving motor 68 for driving one of the pulleys 66 to rotate, so that all the rotating rods 4 can be driven to rotate synchronously by a driving motor 68; when the rotating rod 4 follows the slider 2 to move along the slide groove 11 to the outside of the mounting plate 1, the sliding sleeve 62 and the pulley 66 arranged thereon will move outward together, thereby increasing the distance between the pulley arranged on the sliding sleeve 62 and the axis of the ring 6. The length of the annular belt 67 is a constant value. In order to adapt to the position change of the pulley 66 arranged on the sliding sleeve 62, the support spring 65 will be compressed, so that the sleeve 64 and the pulley 66 arranged thereon will move toward the axis of the circular ring 6 to prevent the annular belt 67 from being broken; when the rotating rod 4 follows the slider 2 to move along the slide groove 11 toward the axis of the mounting plate 1, the distance between the pulley arranged on the sliding sleeve 62 and the axis of the circular ring 6 will be reduced. At this time, the support spring 65 will push the sleeve 64 to move along the sliding rod 63 in the direction away from the circular ring 6, so that the annular belt 67 maintains sufficient tension, thereby ensuring the friction between the annular belt 67 and the pulley 66 to prevent the pulley 66 from slipping; through the above arrangement, the annular belt 67 and the pulley 66 can always maintain stable transmission during the movement of the slider 2; preferably, a telescopic cylinder is arranged on the top of the mounting plate 1 to control the movement of the circular ring 6 along the axis.

[0034] Preferably, Figures 3 to 5 As shown, a slide rail 32 is provided under the slider 2 for connecting the support rod assembly 3, and its extension direction is perpendicular to the corresponding slide groove 11. The tops of the two inner support rods 31 are slidably connected to the two ends of the slide rail 32 respectively, and a push rod 33 parallel to the inner support rods 31 is vertically penetrated in the middle of the slide rail 32. The upper end of the push rod 33 passes through the corresponding slider 2 upward, and the push rod 33 is movable along the axis. The push rod 33 and the inner support rods 31 on both sides are hingedly connected by multiple swing rods 34 of the same length. When working, the push rod 33 is moved along the axis direction, and the two inner support rods 31 can be synchronously retracted to the middle of the slide rail 32 or opened to the two ends through the swing rod 34. Specifically, a telescopic cylinder or hydraulic cylinder can be set above the corresponding slider 2 to control the movement of the push rod 33.

[0035] Further preferably, Figure 5 As shown, two inner support rods 31 on the same support rod assembly 3 are provided with receiving grooves 311 on opposite sides thereof for receiving the swing rod 34 so as to reduce the outer contour size of the inner support rods 31 after being folded.

[0036] Preferably, Figure 2 , Figure 4 As shown, a guide plate 35 is provided above the slide groove 11 corresponding to the support rod assembly 3, and its direction is consistent with the direction of the lower slide groove 11, and the end of the bottom surface of the guide plate 35 facing the center of the mounting plate 1 is higher than the end facing the edge of the mounting plate 1, and the upper end of the push rod 33 protrudes from the top surface of the corresponding slider 2, and the upper end of the push rod 33 is sleeved with a compression spring 36, which is located between the upper end of the push rod 33 and the top surface of the corresponding slider 2; the top of the push rod 33 is in sliding contact with the bottom surface of the guide plate 35, and when the push rod 33 is located at the end of the guide plate 35 close to the center of the mounting plate 1, the compression spring 36 is pressed against the guide plate 35, and the guide plate 35 is pressed against the guide plate 35. The spring 36 is in an extended state, and the two inner support rods 31 are retracted toward the middle; when the top rod 33 is located at one end of the guide plate 35 close to the edge of the mounting plate 1, the compression spring 36 is in a compressed state, and the two inner support rods 31 are opened to both sides; in this way, the long side and the wide side of the rectangular tube can be formed synchronously, the forming efficiency is higher, and the deformation process of the round tube is easier, and when the two groups of support rod assemblies 3 are retracted toward the middle, the two inner support rods 31 of the support rod assembly 3 will also automatically retract under the action of the compression spring 36, which is convenient for quick return and release of the formed rectangular tube.

[0037] Preferably, Figure 4 As shown, the middle section of the connecting rod 13 has a bending structure on one side facing the axis of the mounting plate 1 to prevent the connecting rod 13 from interfering with the top edge corresponding to the long side of the rectangular tube during the forming process.

[0038] The above description is only a preferred embodiment of the present invention, and is not intended to be the only one or to limit the present invention. Those skilled in the art should understand that various changes or equivalent substitutions made to the present invention without departing from the scope of the present invention are within the scope of protection of the present invention.

Claims

1. A capacitor housing forming device, characterized in that: include: A mounting plate (1), a slider (2), a support rod assembly (3), a rotating rod (4) and a spring probe (5); The mounting plate (1) is provided with a plurality of radially arranged slide grooves (11) along a circumferential array, wherein at least one pair of the slide grooves (11) is located in the same straight line; a slider (2) is provided in each of the slide grooves (11), and all the sliders (2) are arranged to move synchronously; A pair of sliders (2) in two slide grooves (11) located in the same straight line is provided with a support rod assembly (3), which includes a pair of inner support rods (31) perpendicular to the mounting plate (1), the inner support rods (31) are located below the mounting plate (1), and the support rod assembly (3) is also provided with an adjustment element for adjusting the distance between the two inner support rods (31), and the adjustment direction of the distance between the inner support rods (31) is perpendicular to the length direction of the corresponding slide groove (11); The remaining sliders (2) are all provided with rotating rods (4) perpendicular to the mounting plate (1), which are arranged to rotate around the axis, and the rotating rods (4) are all arranged to move along the axis direction; At least one spring probe (5) is disposed between the two inner support rods (31), and the probe of the spring probe (5) faces the outside of the mounting plate (1), and is used to detect the position of the joint.

2. A capacitor housing forming device according to claim 1, characterized in that: A connecting plate (12) is coaxially disposed below the mounting plate (1) and is movably disposed along the axis direction of the mounting plate (1). A connecting rod (13) is hingedly disposed between the connecting plate (12) and the slider (2).

3. A capacitor housing forming device according to claim 1, characterized in that: A circular ring (6) is coaxially arranged above the mounting plate (1), and a guide rod (61) is arranged above the slider (2) on which the corresponding rotating rod (4) is mounted. The length direction of the guide rod (61) is consistent with the length direction of the slide groove (11) where the corresponding slider (2) is located. The guide rod (61) is provided with a strip hole (611) along the length direction, and the extension direction of the opening is perpendicular to the mounting plate (1). The guide rod (61) is slidably sleeved with a sliding sleeve (62). The upper end of the rotating rod (4) passes through the corresponding strip hole (611) above and is inserted into the corresponding sliding sleeve (62). The sliding sleeve (62) is provided with a driving member for driving the rotating rod (4) to rotate around the axis, and the circular ring (6) is arranged to move along the axis direction.

4. A capacitor housing forming device according to claim 3, characterized in that: At least one slide bar (63) is provided on the outer side of the circular ring (6) and is arranged along the radial direction of the circular ring (6). A sleeve (64) is slidably provided on the slide bar (63). A support spring (65) is sleeved on the slide bar (63) and is located between the sleeve (64) and the circular ring (6). The driving member comprises a pulley (66) arranged at the same height as the top of the sleeve (64) and the sliding sleeve (62). The pulley (66) on the sliding sleeve (62) is coaxially connected to the corresponding rotating rod (4). The pulley (66) is connected to the inside of an annular belt (67). The driving member also comprises a driving motor (68) for driving one of the pulleys (66) to rotate.

5. A capacitor housing forming device according to claim 1, characterized in that: A slide rail (32) is provided below the slider (2) for connecting the support rod assembly (3), and its extension direction is perpendicular to the corresponding slide groove (11). The tops of the two inner support rods (31) are slidably connected to the two ends of the slide rail (32) respectively. A push rod (33) parallel to the inner support rods (31) is vertically penetrated through the middle of the slide rail (32). The upper end of the push rod (33) passes through the corresponding slider (2) upward. The push rod (33) is movably arranged along the axis. The push rod (33) is hingedly connected to the inner support rods (31) on both sides through a plurality of swing rods (34) of the same length.

6. A capacitor housing forming device according to claim 5, characterized in that: Two inner support rods (31) on the same support rod assembly (3) are provided with a receiving groove (311) on opposite sides thereof for receiving the swing rod (34).

7. A capacitor housing forming device according to claim 5, characterized in that: A guide plate (35) is provided above the slide groove (11) corresponding to the support rod assembly (3), and its orientation is consistent with the orientation of the lower slide groove (11), and the end of the bottom surface of the guide plate (35) facing the center of the mounting plate (1) is higher than the end facing the edge of the mounting plate (1), and the upper end of the push rod (33) protrudes from the top surface of the corresponding slider (2), and the upper end of the push rod (33) is sleeved with a compression spring (36), which is located between the upper end of the push rod (33) and the top of the corresponding slider (2). The top of the push rod (33) is in sliding contact with the bottom surface of the guide plate (35). When the push rod (33) is located at one end of the guide plate (35) close to the center of the mounting plate (1), the compression spring (36) is in an extended state, and the two inner support rods (31) are retracted toward the middle; when the push rod (33) is located at one end of the guide plate (35) close to the edge of the mounting plate (1), the compression spring (36) is in a compressed state, and the two inner support rods (31) are opened to both sides.

8. A capacitor housing forming device according to claim 2, characterized in that: A side of the middle section of the connecting rod (13) facing the axis of the mounting plate (1) has a bent structure.

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