A casing disassembly device

Abstract

This invention relates to a shell disassembly device, comprising: a worktable, columns, claw assemblies, a drive unit, and a variable amplitude support. Two columns are slidably mounted on the worktable. Each of the two columns has a claw assemblies on opposite sides, and a variable amplitude support is fixed on opposite sides of each column. The drive unit is mounted on the variable amplitude support and drivenly connected to the columns. The shell has a pre-set disassembly groove that matches the fingertips of the claw assemblies. The shell is placed between the two columns, and the fingertips are placed in the disassembly groove. The drive unit drives the two columns to move in opposite directions with varying amplitude. In the initial stage, the movement is large to improve disassembly efficiency, while in the later stage, when the shell is about to be torn, the movement becomes small. This variable amplitude disassembly mechanism allows for the effective removal of internal components while protecting them.

Description

Technical Field

[0001] This invention relates to the field of maintenance technology, and in particular to a shell disassembly device that does not damage the internal parts. Background Technology

[0002] Many devices have components housed within a casing. When the casing no longer meets usage requirements for various reasons, but the internal components are not damaged, it is necessary to remove the components. Due to differences in material and wall thickness, disassembling the casing is quite difficult. Improper disassembly methods can easily damage the internal components or cause safety accidents.

[0003] For example, the stator coil used in a machine tool spindle needs to be installed inside a steel sleeve, which in turn needs to be installed inside a cast iron sleeve. Finally, the cast iron sleeve, along with the steel sleeve and stator coil inside it, is installed in the spindle box. The cast iron sleeve is usually pressure tested after the steel sleeve and stator coil are installed inside it. If the test fails, the steel sleeve and stator coil inside must be removed to replace the cast iron sleeve and / or the steel sleeve.

[0004] In existing technologies, disassembly is usually carried out by cutting the outer casing. Since the stator coil, steel sleeve and cast iron sleeve are all interference fit, cutting and disassembling the cast iron sleeve can easily damage the steel sleeve, and cutting and disassembling the steel sleeve can easily damage the stator coil. Summary of the Invention

[0005] Therefore, it is necessary to provide a shell disassembly device to address the technical problem that disassembling the shell can easily damage the internal parts.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] This invention discloses a shell disassembly device, comprising: a worktable, columns, claw assemblies, a drive unit, and a variable amplitude support. Two columns are slidably mounted on the worktable. Each of the two columns has a claw assemblies on its opposite sides, and a variable amplitude support is fixedly mounted on each of the opposing sides of the two columns. The drive unit is mounted on the variable amplitude support and drivenly connected to the columns. The shell is provided with disassembly grooves that match the fingertips of the claw assemblies. During disassembly, the shell is placed between the two columns, and the fingertips are placed in the disassembly grooves. The drive unit drives the two columns to move in opposite directions with varying amplitudes; large amplitude movements occur in the initial stage of the disassembly operation, and small amplitude movements occur in the later stage.

[0008] In one embodiment, the amplitude-variable support is provided with a first through hole and a second through hole that intersect each other perpendicularly. The cross-section of the first through hole is circular, and the cross-section of the second through hole is elliptical. A rotating shaft is provided in the first through hole, and a third through hole is provided on the rotating shaft. The axis of the third through hole intersects the central axis of the second through hole and is perpendicular to the axis of the first through hole. One end of the driving member is a driving end, and the other end passes through the third through hole and is rotatably connected to the bottom of the column. Swinging the driving end of the driving member causes the column to move slightly.

[0009] In one embodiment, the third through hole is provided with an internal thread, and the driving member is provided with an external thread that matches the internal thread. The internal thread and the external thread are in a limiting fit. Rotating the driving end of the driving member causes the column to move significantly.

[0010] In one embodiment, a fourth through hole is provided at the bottom of the column, and the end of the drive member opposite to the drive end passes through the fourth through hole and is fastened by a nut.

[0011] In one embodiment, the disassembly device further includes a connecting rod having a forward threaded section and a reverse threaded section; the forward threaded section is limited to the top of one column, and the reverse threaded section is limited to the top of another column.

[0012] In one embodiment, the connecting rod is connected to the column via the luffing support.

[0013] In one embodiment, the disassembly device further includes a height adjustment assembly, which includes a support plate and an adjustment rod. The support plate is fixed on the column, and a first threaded hole is provided on the support plate. A second threaded hole is provided on the pull claw assembly. The adjustment rod is provided with a forward threaded section that matches the first threaded hole and a reverse threaded section that matches the second threaded hole. The forward threaded section is in a limiting engagement with the first threaded hole, and the reverse threaded section is in a limiting engagement with the second threaded hole.

[0014] In one embodiment, the pull claw assembly includes a pull claw seat, two pull claws, and a limiting rod. The pull claw seat is disposed on the column, and the two pull claws are hinged to the pull claw seat. The two pull claws are limited and connected by the limiting rod.

[0015] In one embodiment, the limiting rod is provided with a forward threaded section and a reverse threaded section, one pull claw is provided with a third threaded hole that matches the forward threaded section, and the other pull claw is provided with a fourth threaded hole that matches the reverse threaded section. The third threaded hole is limited to the forward threaded section, and the fourth threaded hole is limited to the reverse threaded section.

[0016] In one embodiment, the workbench is provided with a soft pad for placing the outer casing.

[0017] The technical solution adopted in this invention can achieve the following beneficial effects:

[0018] The shell disassembly device disclosed in this invention has an ingenious structural design and is safe and reliable for variable amplitude disassembly. It performs large-amplitude disassembly in the initial stage to improve disassembly efficiency, and switches to small-amplitude disassembly in the later stage when the shell is about to be torn. The combination of large-amplitude and small-amplitude disassembly can quickly and effectively remove the internal parts of the shell while protecting them. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the shell disassembly device disclosed in an embodiment of the present invention during extensive disassembly.

[0020] Figure 2 This is a schematic diagram of the shell disassembly device disclosed in an embodiment of the present invention during a small-scale disassembly.

[0021] Figure 3 This is a top view of the shell disassembly device disclosed in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the fit between the cross-shaped through holes on the luffing support;

[0023] Explanation of reference numerals in the attached figures:

[0024] 100 - Workbench, 110 - Soft pad;

[0025] 210 - Left column, 220 - Right column

[0026] 300-Packet assembly, 310-Packet base, 320-Packet, 330-Limit lever;

[0027] 410 - Left drive component, 420 - Right drive component, 430 - Nut

[0028] 500 - Lamp support, 511 - First through hole, 512 - Second through hole, 520 - Rotating shaft, 521 - Third through hole;

[0029] 600-link;

[0030] 700 - Outer casing, 710 - Disassembly slot;

[0031] 810 - Support plate, 820 - Adjusting rod. Detailed Implementation

[0032] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0033] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] This invention discloses a shell disassembly device, such as... Figure 1 As shown, the disclosed disassembly device includes a workbench 100, a left column 210 slidably disposed at one end of the workbench 100, and a right column 220 slidably disposed at the other end of the workbench 100. A set of claw assemblies 300 is provided on each opposite side of the left column 210 and the right column 220. Before operation, a disassembly groove 710 can be pre-machined on each side of the outer casing 700. During operation, the outer casing 700 is placed between the left column 210 and the right column 220, and the fingertips of both sets of claw assemblies 300 are placed within the disassembly grooves 710. Driving the left column 210 and the right column 220 to slide backwards causes the claw assemblies 300 to pry the outer casing 700 open from the disassembly grooves 710 to both sides. The fingertips of the claw assemblies 300 are preferably internal hook structures that match the disassembly grooves 710.

[0036] Specifically, a left drive member 410 can be connected to the bottom of the left column 210 to drive the left column 210 to slide, and a right drive member 420 can be connected to the bottom of the right column 220 to drive the right column 220 to slide. A luffing support 500 is fixedly provided on the side of the left column 210 opposite to the right column 220, and the left drive member 410 is disposed on the luffing support 500; a luffing support 500 is also fixedly provided on the side of the right column 220 opposite to the left column 210, and the right drive member 420 is disposed on the luffing support 500.

[0037] In the embodiments disclosed in this invention, the function of the variable amplitude support 500 is to adjust the driving amplitude of the driving components. During the assembly stage of the housing 700 and the claw assembly 300, to improve assembly efficiency, a large-amplitude drive is used, with the left and right driving components driving the left and right columns to move significantly towards / away from each other. In the initial stage of the disassembly operation, to improve disassembly efficiency, a large-amplitude drive is used, with the left and right driving components driving the left and right columns to move significantly away from each other. In the later stage of the disassembly operation, i.e., when the housing of the housing 700 is about to be torn apart, to protect the internal parts, the large-amplitude drive is switched to a small-amplitude drive, with the left and right driving components driving the left and right columns to move slightly away from each other.

[0038] In the embodiments disclosed in this invention, such as Figure 4 As shown, a cross-shaped through hole can be provided on the luffing support 500 to engage with a perforated rotating shaft 520 for luffing operation of the drive components (left and right drive components). Specifically, the luffing support 500 can be provided with a first through hole 511 with a circular cross-section and a second through hole 512 with an elliptical cross-section. The axis of the first through hole 511 intersects perpendicularly with the central axis of the second through hole 512, and the central axis of the second through hole 512 is parallel to the sliding direction of the left column 210 / right column 220. It should be noted that the central axis of the second through hole 512 is located at the intersection of its minor axis and major axis. A rotating shaft 520 with clearance fit can be provided in the first through hole 511, and a third through hole 521 is provided on the rotating shaft 520. The position and size of the third through hole 521 match those of the second through hole 512. The diameter of the cross-section of the third through hole 521 is smaller than the minor axis of the cross-section of the second through hole 512, and the center point of the cross-section of the third through hole 521 is located on the major axis of the cross-section of the second through hole 512. That is, the axis of the third through hole 521 intersects the central axis of the second through hole 512 and is perpendicular to the axis of the first through hole 511.

[0039] Furthermore, the driving component is provided with an external thread, and the third through hole 521 is provided with an internal thread. The internal thread and the external thread are matched and can be used for limiting engagement. One end of the driving component is the driving end, and the other end passes through the third through hole 521 and is rotatably connected to the bottom of the left column 210 / right column 220. It should be noted that the driving component passes through the third through hole 521 and also passes through the second through hole 512, intersecting perpendicularly with the rotating shaft 520.

[0040] like Figure 1 As shown, the drive end rotates, and due to the threaded limiting fit between the drive component and the third through hole 521, the drive component moves toward or away from the left column 210 / right column 220 connected to it, causing the left column 210 / right column 220 connected to it to move significantly. Figure 2As shown, the drive end reciprocates along the major axis of the cross-section of the second through hole 512. Since both the minor and major axes of the cross-section of the second through hole 512 are greater than the diameter of the drive component, the drive component can cause the rotating shaft 520 to rotate slightly in the first through hole 511. At the same time, it causes the connection between the drive component and the left column 210 / right column 220 to swing slightly in the opposite direction, further causing the left column 210 / right column 220 to move slightly. Both the rotation and swing of the drive end can be manually driven.

[0041] Furthermore, a fourth through hole can be provided at the bottom of the left column 210 / right column 220. The axis of the fourth through hole can coincide with the central axis of the second through hole 512. The end of the drive component away from the drive end passes through the fourth through hole and is secured by the nut 430.

[0042] Furthermore, a slide groove or slide rail can be provided on the top surface of the workbench 100, and a slider matching the slide groove or slide rail can be provided at the bottom end of the left and right columns. The slider and the slide groove / slide rail form a sliding pair. Of course, in order to accommodate the small-amplitude movement of the left and right columns, the slide rail or slide groove should be provided with a margin for slight swing of the connecting part of the left and right columns connected to the connector.

[0043] In the embodiments disclosed in this invention, the disassembly device further includes a connecting rod 600 to improve the movement stability of the left column 210 and the right column 220. Specifically, the connecting rod 600 is provided with a forward threaded section and a reverse threaded section. The forward threaded section can be connected to the top threaded limit of the left column 210, and the reverse threaded section can be connected to the top threaded limit of the right column 220. Rotating the connecting rod 600 can drive the tops of the left and right columns to move synchronously towards or away from each other. When the driving component drives the bottom of the left column 210 and / or the right column 220 to move significantly, the connecting rod 600 should be driven to drive the tops of the left column 210 and / or the right column 220 to move synchronously significantly.

[0044] Furthermore, to accommodate the variable amplitude movement of the left and right columns, variable amplitude supports 500 are fixedly provided at the top of both the left and right columns. Their specific structure is the same as the variable amplitude support 500 fixed on the worktable 100 for supporting the drive component in any of the above embodiments, and will not be described again in this embodiment. In addition, the internal thread in the third through hole 521 of the variable amplitude support 500 at the top of the left column 210 matches the forward thread section of the connecting rod 600, and the two can be in a limiting fit. The internal thread in the third through hole 521 of the variable amplitude support 500 at the top of the right column 220 matches the reverse thread section of the connecting rod 600, and the two can be in a limiting fit. Both ends of the connecting rod 600 can be screwed into the variable amplitude supports 500 at the top of the left and right columns, respectively. When the bottom of the left and right columns moves slightly, the connecting rod 600 is not rotated, such as... Figure 2As shown, at this time, the left and right columns rotate slightly towards or away from each other around the axis of the top pivot 520 to prevent the outer shell 700 from being torn apart by excessive reaction force, which could damage the internal parts.

[0045] In the embodiments disclosed in this invention, such as Figure 1 , Figure 3 As shown, the disclosed disassembly device also includes a height adjustment assembly for adjusting the height of the claw assembly 300. This height adjustment assembly may include a support plate 810 fixed to the left column 210 / right column 220 and an adjusting rod 820. The claw assembly 300 may include a claw seat 310 and two claws 320 with opposite fingertips. Specifically, the adjusting rod 820 has a forward threaded section and a reverse threaded section. The support plate 810 has a first threaded hole that engages with the forward threaded section, and the claw seat 310 has a second threaded hole that engages with the reverse threaded section. After screwing the adjusting rod 820 into the first and second threaded holes, the height of the claw seat 310 is adjusted by rotating the adjusting rod 820. Two claws 320 are hinged to the claw seat 310, and the two claws 320 can be connected by a limiting rod 330.

[0046] Furthermore, the limiting rod 330 may be provided with a forward thread section and a reverse thread section. One of the pull claws 320 is provided with a third threaded hole that matches the forward thread section, and the other pull claw 320 is provided with a fourth threaded hole that matches the reverse thread section. The limiting rod 330 passes through the third and fourth threaded holes and engages with the two pull claws 320 for limiting. The distance between the two pull claws 320 can be adjusted by rotating the limiting rod 330 to accommodate housings 700 of various sizes.

[0047] In the embodiments disclosed in this invention, a soft pad 110 can be provided on the top of the workbench 100. During operation, the outer shell 700 is placed on the soft pad 110. During operation, especially when the outer shell 700 is torn, the soft pad cushions the outer shell 700 and protects the parts inside the shell.

[0048] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A casing disassembly device, characterized in that, include: The system includes a worktable, columns, claw assemblies, a drive unit, and a luffing support. Both columns are slidably mounted on the worktable. Each of the two columns has a claw assembly on its opposite side, and a luffing support is fixed on each of the two columns' opposing sides. The drive unit is mounted on the luffing support and is drivenly connected to the columns. The outer casing is pre-set with a disassembly groove that matches the fingertip of the pull claw assembly; during disassembly, the outer casing is placed between two pillars, and the fingertip is placed in the disassembly groove; The driving component drives the two columns to move in opposite directions with varying amplitudes. The large amplitude movement occurs in the initial stage of the disassembly operation, and the small amplitude movement occurs in the later stage of the disassembly operation. The variable amplitude support is provided with a first through hole and a second through hole whose central axes intersect each other perpendicularly. The cross-section of the first through hole is circular and the cross-section of the second through hole is elliptical. A rotating shaft is provided in the first through hole, and a third through hole is provided on the rotating shaft; the axis of the third through hole intersects the central axis of the second through hole and is perpendicular to the axis of the first through hole. One end of the driving component is the driving end, and the other end passes through the third through hole and is rotatably connected to the bottom of the column; The driving end of the swinging drive component causes the column to move slightly.

2. The shell disassembly device according to claim 1, characterized in that, The third through hole is provided with an internal thread, and the driving member is provided with an external thread that matches the internal thread. The internal thread and the external thread are in a limiting fit. Rotating the drive end of the drive component causes the column to move significantly.

3. The shell disassembly device according to claim 2, characterized in that, The bottom of the column is provided with a fourth through hole, and the end of the driving component opposite to the driving end passes through the fourth through hole and is fastened by a nut.

4. The shell disassembly device according to claim 1, characterized in that, It also includes a connecting rod, which is provided with a forward threaded section and a reverse threaded section; the forward threaded section is limited to the top of one column, and the reverse threaded section is limited to the top of another column.

5. The shell disassembly device according to claim 4, characterized in that, The connecting rod is connected to the column via the variable amplitude support.

6. The shell disassembly device according to claim 1, characterized in that, It also includes a height adjustment assembly, which includes a support plate and an adjustment rod. The support plate is fixed on the column and has a first threaded hole. The pull claw assembly has a second threaded hole. The adjustment rod has a forward threaded section that matches the first threaded hole and a reverse threaded section that matches the second threaded hole. The forward threaded section is in a limiting fit with the first threaded hole, and the reverse threaded section is in a limiting fit with the second threaded hole.

7. The shell disassembly device according to claim 1, characterized in that, The pull claw assembly includes a pull claw base, two pull claws, and a limiting rod. The pull claw base is disposed on the column, and both pull claws are hinged to the pull claw base. The two pull claws are connected to each other by the limiting rod.

8. The shell disassembly device according to claim 7, characterized in that, The limiting rod is provided with a forward thread section and a reverse thread section. One pull claw is provided with a third threaded hole that matches the forward thread section, and the other pull claw is provided with a fourth threaded hole that matches the reverse thread section. The third threaded hole is limited to the forward thread section, and the fourth threaded hole is limited to the reverse thread section.

9. The casing disassembly device according to any one of claims 1-8, characterized in that, The workbench is provided with a soft pad for placing the outer casing.

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