Dismounting tool and welding wheel assembly

Abstract

According to the dismounting tool and the welding wheel assembly, a guide column is inserted and fixed into a connecting block, an abutting piece in the dismounting tool abuts against the connecting block, the abutting piece is provided with a containing groove capable of containing the guide column and a hook rotationally connected with the abutting piece, and the position of the abutting piece and the position of the connecting block are fixed. And then a pulling piece in the dismounting tool is rotatably inserted into the abutting piece, the threaded end of the pulling piece extends into the containing groove, and the control end of the pulling piece is spaced from the abutting piece. The threaded end can be in threaded fit with the center hole, the threaded end can be rotated by rotating the control end, rotation of the threaded end is transmitted to the guide column through threaded fit, and the guide column can enter the containing groove from the connecting block under the action force in the axial direction. The hook is separated from the connecting block, and the dismounting tool and the guide column are pulled out together. Integrated movement facilitates disassembly and assembly, and the maintenance efficiency is improved. The guide column is not damaged, the maintenance safety is improved, and potential safety hazards are reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of equipment maintenance tools, and in particular, relates to a disassembly tool and a welding wheel assembly. Background Art

[0002] The Miebach welding machine can be used in a rolling production line. When the Miebach welding machine is overhauled, the welding wheel base needs to be opened to overhaul the inside of the welding wheel base. The welding wheel base can be raised and lowered to connect to the frame of the welding machine. The welding wheel is fixed to a connecting block. The connecting block is fixed to a guide column. The guide column is inserted and fixed to the welding wheel base. The guide column and the connecting block need to be disassembled to leave an overhaul space, and then the welding wheel base of the Miebach welding machine is disassembled for overhaul. The guide column is inserted into the welding wheel base to be fixed on the welding wheel base, and the guide column and the connecting block are closely matched, making it difficult to disassemble the guide column and the connecting block.

[0003] At present, the guide column and the connecting block are separated mainly by using a hammer, a flat-blade screwdriver, etc. to apply vibration or force to the guide column so that the guide column can slide or glide relative to the welding wheel base to separate the guide column and the connecting block. However, using these tools to separate the guide column and the connecting block may cause a certain degree of damage to the guide column, low maintenance efficiency, and certain safety hazards. Utility Model Content

[0004] The present application aims to at least to some extent solve the problem of low efficiency and certain safety hazards in the disassembly and maintenance of the guide column and the connecting block. To this end, the present application provides a disassembly tool and a welding wheel assembly.

[0005] In some embodiments, a disassembly tool provided in an embodiment of the present application is used to disassemble a guide column and a connecting block, wherein the guide column passes through the connecting block and transitionally cooperates with the connecting block, both ends of the guide column extend out of the connecting block, and both ends are provided with a threaded center hole, and the disassembly tool comprises:

[0006] an abutment member, used for abutting against the connection block and provided with an accommodation groove for accommodating the guide column;

[0007] A hook, rotatably connected to the abutment member, wherein the hook rotates relative to the abutment member until it hooks the connection block, so as to limit the freedom of the abutment member relative to the connection block;

[0008] The pulling member can be rotatably inserted into the abutment member, and is provided with a threaded end extending into the accommodating groove and a control end spaced from the abutment member, the threaded end is used to cooperate with the thread of the center hole, and the control end is rotated to rotate the threaded end so that the guide column can be separated from the connecting block.

[0009] In some embodiments, the receiving groove is a cylindrical groove, and its axial direction extends in the same direction as the axial direction of the guide column, and the diameter of the receiving groove is greater than the diameter of the guide column.

[0010] In some embodiments, the pulling member is a bolt, the axial direction of the bolt extends along the axial direction of the cylindrical groove, the head of the bolt is configured as the control end, and the end of the rod of the bolt away from the head is configured as the threaded end.

[0011] In some embodiments, the abutment member is provided with a through hole communicating with the receiving groove, the through hole being inserted into by the threaded end, and the disassembly tool further comprises:

[0012] A retaining ring is sleeved and connected to the threaded end and is located in the receiving groove, and the outer diameter of the retaining ring is larger than the aperture of the through hole.

[0013] In some embodiments, the abutment member is a rotating structure, and one end of the abutment member cooperates with the pulling member and is configured as a supporting end, and the other end of the abutment member is provided with the accommodating groove.

[0014] In some embodiments, the disassembly tool further comprises:

[0015] The supporting structure includes a supporting portion, a clamping portion and a connecting portion connecting the supporting portion and the clamping portion, wherein the supporting portion abuts against the supporting end, and the clamping portion is provided with a first U-shaped groove which penetrates the abutting member axially, and the groove wall of the first U-shaped groove is used to clamp the peripheral wall of the guide column.

[0016] In some embodiments, the pulling member is a bolt, and the supporting portion is provided with a second U-shaped groove which penetrates the abutment member axially, and the second U-shaped groove is used to be sleeved on both sides of the bolt, and the maximum width of the second U-shaped groove is greater than or equal to the maximum width of the bolt.

[0017] In some embodiments, the supporting portion, the clamping portion and the connecting portion are all plate-like structures, and the clamping portion and the supporting portion are both arranged along the radial direction of the abutment, and the plate surface of the connecting portion contacts the peripheral wall of the abutment with the largest diameter.

[0018] In some embodiments, the present application provides a welding wheel assembly, including:

[0019] Removal tools as previously described;

[0020] A welding wheel base, used for telescopic connection with the frame of the welding machine;

[0021] A guide column, one end of which is inserted into the welding wheel base for connection, and the other end of which is inserted into and fixed to the connecting block and extends out of the connecting block;

[0022] The welding wheel is fixed to the welding wheel base and protrudes from the connecting block and the guide column along the axial direction of the guide column.

[0023] In some embodiments, there is a gap between the connecting block and the welding wheel base, and along the axial direction of the guide column, the abutment abuts against the side of the connecting block away from the gap, and the hook rotates relative to the abutment to hook the side of the connecting block close to the gap.

[0024] Advantageous effects provided by one or more embodiments of the present application:

[0025] The guide column is inserted and fixed in the connection block, and the abutment member in the disassembly tool is abutted against the connection block. The abutment member is provided with a receiving groove that can accommodate the guide column. The hook that is rotatably connected to the abutment member can be rotated relative to the abutment member to hook the connection block, so as to limit the freedom of the abutment member relative to the connection block and fix the position of the abutment member and the connection block. Then the pulling member in the disassembly tool is rotatably inserted into the abutment member, and the threaded end of the pulling member extends into the receiving groove, and the control end of the pulling member is spaced from the abutment member. The threaded end can be threadedly matched with the center hole, and the control end can be rotated to make the threaded end rotate. The rotation of the threaded end is transmitted to the guide column through the threaded match, and the axial displacement of the threaded end is controlled, so that the guide column can be subjected to an axial force when it is rotated by the force of the thread, so as to move from the inside of the connection block to the threaded end, and the threaded end is located in the receiving groove, and the guide column can finally enter the receiving groove. Then the hook is rotated to separate the hook from the connection block, and the abutment member, the hook, the pulling member and the guide column can be pulled out relative to the connection block together, and the welding wheel base can be subsequently disassembled. Applying rotation to the control end can realize the separation of the guide column and the rotating column. The rotation can be achieved by clamps or wrenches, etc. The separation and maintenance efficiency of the guide column and the connecting block is high, and the guide column and the disassembly tool can move as a whole, which is conducive to the separation and the subsequent installation of the guide column, which can effectively improve the maintenance efficiency. In addition, the thread of the center hole of the guide column and the guide column itself will hardly be damaged, which is also conducive to improving the safety of maintenance and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A diagram showing the matching relationship between a disassembly tool and a welding wheel assembly in some embodiments is shown.

[0028] Figure 2An exploded view of a disassembly tool in some embodiments is shown.

[0029] Figure 3 A schematic diagram of the structure of a disassembly tool in some embodiments is shown.

[0030] Figure 4 A top view of a removal tool in some embodiments is shown.

[0031] Figure 5 A schematic structural diagram of a welding wheel assembly and a disassembly tool in some embodiments is shown.

[0032] Reference numerals: DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0037] For ease of understanding, the application environment of the welding wheel assembly is first described here. The welding machine includes at least two welding wheel assemblies arranged relative to each other in the upper and lower directions. The two welding wheel 400 assemblies are relative to each other, so that the welding wheels 400 in the two welding wheel 400 assemblies are relative to each other, and the peripheral walls of the two welding wheels 400 are relative to each other. The welding wheels 400 rotate to cut the substrate to be cut. The upper welding wheel 400 can be raised and lowered to make room. Therefore, when the upper welding wheel 400 assembly is inspected, the guide column 100 and the connecting block 200 connected to the welding wheel 400 need to be disassembled to leave space for disassembly and inspection of the welding wheel 400 base 300.

[0038] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0039] Figure 1 A diagram showing the matching relationship between a disassembly tool and a welding wheel assembly in some embodiments is shown. Figure 2 An exploded view of a disassembly tool in some embodiments is shown. Figure 3 A schematic diagram of a disassembly tool and a structure of some embodiments is shown, combined with Figure 1 to Figure 3 In some embodiments, a disassembly tool provided in an embodiment of the present application is used to disassemble a guide column 100 and a connection block 200. The guide column 100 passes through the connection block 200 and is transitionally matched with the connection block 200. Both ends of the guide column 100 extend out of the connection block 200, and both ends are provided with a threaded center hole. The disassembly tool includes:

[0040] The abutment member 1 is used to abut against the connection block 200 and is provided with a receiving groove 11 for receiving the guide column 100;

[0041] The hook 2 is rotatably connected to the abutment member 1. The hook 2 rotates relative to the abutment member 1 until it hooks the connection block 200, so as to limit the freedom of the abutment member 1 relative to the connection block 200;

[0042] The pulling member 3 can be rotatably inserted into the abutment member 1, and is provided with a threaded end 31 extending into the accommodating groove 11 and a control end 32 spaced apart from the abutment member 1. The threaded end 31 is used to cooperate with the center hole thread. The control end 32 is rotated to rotate the threaded end 31 so that the guide column 100 can be disengaged from the connecting block 200.

[0043] The guide post 100 is inserted and fixed in the connection block 200, and the abutment member 1 in the disassembly tool is abutted against the connection block 200. The abutment member 1 is provided with a receiving groove 11 for receiving the guide post 100. The hook 2 rotatably connected to the abutment member 1 can be rotated relative to the abutment member 1 to hook the connection block 200, so as to limit the freedom of the abutment member 1 relative to the connection block 200 and fix the position of the abutment member 1 and the connection block 200. Then, the pulling member 3 in the disassembly tool is rotatably inserted into the abutment member 1, and the threaded end 31 of the pulling member 3 extends into the receiving groove 11, and the control end 32 of the pulling member 3 is spaced from the abutment member 1. The threaded end 31 can be threadedly matched with the center hole, and the control end 32 can be rotated to rotate the threaded end 31. The rotation of the threaded end 31 is transmitted to the guide column 100 through the threaded match. By controlling the axial displacement of the threaded end 31, the guide column 100 can be subjected to an axial force when rotating under the force of the thread, so as to move from the connection block 200 to the threaded end 31. The threaded end 31 is located in the receiving groove 11, and the guide column 100 can eventually enter the receiving groove 11. Then the hook 2 is rotated to separate the hook 2 from the connection block 200, and the abutment member 1, the hook 2, the pulling member 3 and the guide column 100 can be pulled out relative to the connection block 200 together, and the welding wheel base 300 can be subsequently disassembled. Applying rotation to the control end 32 can realize the separation of the guide column 100 and the rotating column. The rotation can be achieved by clamps or wrenches, etc. The separation and maintenance efficiency of the guide column 100 and the connecting block 200 is high, and the guide column 100 and the disassembly tool can move as a whole, which is conducive to separation and also facilitates the subsequent installation of the guide column 100, which can effectively improve the maintenance efficiency. In addition, the thread of the center hole of the guide column 100 and the guide column 100 itself will hardly be damaged, which is also conducive to improving the safety of maintenance and reducing safety hazards.

[0044] In the present application, the hook 2 limits the abutment member 1 and the connection block 200, and can transfer the weight of the abutment member 1 to the connection block 200, so as to facilitate the independent operation of the control end 32 to rotate, save effort, and improve the efficiency of disassembly and assembly to improve the efficiency of maintenance. The hook 2 will not cause damage to the connection block 200 and the guide column 100, and can also reduce the potential safety hazards in the maintenance process.

[0045] It should be noted that when the pulling member 3 rotates, the axial displacement of the pulling member 3 is limited, and the threaded end 31 and the abutment 1 can be matched by threads, and the threaded rotation direction between the threaded end 31 and the abutment 1 is opposite to the threaded rotation direction between the threaded end 31 and the guide column 100. When the threaded end 31 rotates relative to the abutment 1, the abutment 1 can be more tightly abutted against the connecting block 200, and the guide column 100 can move toward the threaded end 31 and enter the receiving groove 11. Alternatively, the threaded end 31 and the abutment 1 can be matched by a snap ring structure, so that the threaded end 31 and the abutment 1 can rotate relative to each other, and no displacement will occur in the axial direction of the threaded end 31. The hook 2 can hook the edge or protrusion of the connecting block 200 or the hole of the connecting block 200 itself, and this application does not limit this.

[0046] In some embodiments, the hook 2 may be in the shape of a strip, and one end may be hinged to a protrusion on the abutment 1 or a side of the abutment 1 through a column or an axis, or hinged through a hinge, which is not limited in the present application.

[0047] In some embodiments, the receiving groove 11 is a cylindrical groove, and the axial direction thereof extends in the same direction as the axial direction of the guide post 100 , and the diameter of the receiving groove 11 is greater than the diameter of the guide post 100 .

[0048] The receiving groove 11 is a cylindrical groove and extends axially along the axial direction of the guide column 100. The diameter of the receiving groove 11 is larger than the diameter of the guide column 100, which can facilitate accommodating the guide column 100 and reduce the operating space required for the disassembly tool. It is beneficial to be applied to the maintenance of welding machines with smaller operating space and improve the versatility of the disassembly tool.

[0049] In some embodiments, in cooperation with the threaded end 31 , the guide post 100 after entering the receiving groove 11 can be loosely fitted with the receiving groove 11 , which facilitates the subsequent disassembly and assembly of the guide post 100 and does not cause a significant impact on the guide post 100 .

[0050] In some embodiments, the pulling member 3 is a bolt, the axial direction of the bolt extends along the axial direction of the cylindrical groove, the head of the bolt is configured as a control end 32, and the end of the bolt rod away from the head is configured as a threaded end 31.

[0051] The preparation and acquisition costs of the bolts are low, and the heads of the bolts are easy to operate, which can reduce the preparation costs of disassembly tools and the operating space required for operation.

[0052] In some embodiments, the receiving groove 11 may be an arc groove, a square groove, or a hemispherical groove, the abutment member 1 may be in the shape of a bucket, the pulling member 3 may be in the shape of a bamboo dragonfly with a rod portion inserted into the bottom of the abutment member 1, and the two mutually perpendicular rods of the pulling member 3 may be respectively configured as a threaded end 31 and a control end 32. This application does not limit this.

[0053] Figure 4 A top view of a disassembly tool in some embodiments is shown, with reference to Figure 4 In some embodiments, the abutment member 1 is provided with a through hole 12 connected to the accommodating groove 11, and the through hole 12 is for the threaded end 31 to be inserted. The disassembly tool also includes a retaining spring 4, which is sleeved and connected to the threaded end 31 and is located in the accommodating groove 11, and the outer diameter of the retaining spring 4 is larger than the aperture of the through hole 12.

[0054] The circlip 4 is sleeved on the threaded end 31, and the outer diameter is larger than the aperture of the through hole 12. The circlip 4 will not pass through the through hole 12. The circlip 4 sleeved on the threaded end 31 can be stuck in the receiving groove 11 to limit the axial displacement of the threaded end 31, and the threaded end 31 can be located in the receiving groove 11, so that the threaded end 31 is easy to cooperate with the guide column 100, and the guide column 100 is moved into the receiving groove 11. It can also reduce the space required by the disassembly tool as a whole, and facilitate the operation of the disassembly tool in a small space.

[0055] In some embodiments, the abutment member 1 is a rotary structure, and one end of the abutment member 1 cooperates with the pulling member 3 and is configured as a supporting end 13 , and the other end of the abutment member 1 is provided with a receiving groove 11 .

[0056] The abutment member 1 is a rotary structure, which is convenient for cooperating with the guide column 100 and the threaded end 31 of the pulling member 3. A receiving groove 11 is set at one end, and the other end cooperates with the pulling member 3, which can also reduce the space required for the overall disassembly tool.

[0057] In some embodiments, the abutment member 1 may be in the shape of a bucket, and the two ends of the abutment member 1 in the shape of a bucket are closed and open respectively, the closed end may be a support end 13 for inserting the pulling member 3, and the open end and the inner wall of the abutment member 1 may form a receiving groove 11. The pulling member 3 may be a bolt coaxially arranged with the abutment member 1. The structure is compact and the volume is small, which is convenient for operation and accommodating the guide column 100.

[0058] In some embodiments, the disassembly tool further includes a support structure 5, including a support portion 51, a clamping portion 52, and a connecting portion 53 connecting the support portion 51 and the clamping portion 52, the support portion 51 abuts against the support end 13, the clamping portion 52 is provided with a first U-shaped groove 521 penetrating the abutment member 1 axially, and the groove wall of the first U-shaped groove 521 is used to clamp the peripheral wall of the guide column 100.

[0059] The supporting portion 51 abuts against the supporting end 13 of the abutting member 1, providing a supporting point for the supporting structure 5, and transferring the supporting point to the clamping portion 52 through the connecting portion 53. The first U-shaped groove of the clamping portion 52 can clamp the peripheral wall of the guide column 100, providing a supporting point for the outer guide column 100 except for the threaded end 31, thereby reducing the possibility of damage or movement of the guide column 100. There is no fixed connection structure between the support structure 5 and the guide column 100 and the abutment 1, so the support structure 5 can be separated from the abutment 1. After the guide column 100 withdraws from the connecting block 200 and moves into the accommodating groove 11, the support structure 5 is abutted against the abutment 1 to ensure that the position of the guide column 100 relative to the abutment 1 and the threaded end 31 is stable. The guide column 100, the abutment 1 and the pulling member 3 are moved as a whole by the support structure 5, and the guide column 100 is pulled out of the connecting block 200 for easy operation. Subsequently, the disassembly tool as a whole can be moved by the support structure 5, and the guide column 100 can be directly inserted into the connecting block 200 for installation, which is beneficial to improving maintenance efficiency.

[0060] In some embodiments, the pulling member 3 is a bolt, and the supporting portion 51 is provided with a second U-shaped groove 511 that penetrates the abutting member 1 axially, and the second U-shaped groove 511 is used to be sleeved on both sides of the bolt, and the maximum width of the second U-shaped groove 511 is greater than or equal to the maximum width of the bolt.

[0061] The maximum width of the second U-shaped groove 511 of the supporting portion 51 is greater than or equal to the maximum width of the bolt, and can abut against the bolt when it is rotated to the maximum width, thereby providing certain support.

[0062] In some embodiments, the support portion 51, the clamping portion 52 and the connecting portion 53 are all plate-shaped structures, and the clamping portion 52 and the support portion 51 are arranged along the radial direction of the abutment 1, and the plate surface of the connecting portion 53 contacts the peripheral wall with the largest diameter of the abutment 1. This is convenient for preparation, and the connecting portion 53 can also play a supporting and limiting role for the abutment 1, facilitating overall movement.

[0063] In some embodiments, the support structure 5 may also be configured to include only a clamping portion 52 and a connecting portion 53, both of which are plate-shaped. The connecting portion 53 and the side or peripheral wall of the abutment 1 may cooperate with each other through a groove and a protrusion, and the groove or the protrusion may slide relative to each other along the radial direction of the guide column 100. The present application does not impose any restrictions on this.

[0064] Figure 5 A schematic diagram of the structure of a welding wheel assembly and a disassembly tool in some embodiments is shown, combined with Figure 1 , Figure 5 In some embodiments, the present application provides a welding wheel assembly, comprising:

[0065] Removal tool as described above.

[0066] The welding wheel base 300 is used for being telescopically connected to the frame of the welding machine.

[0067] One end of the guide post 100 is inserted into the welding wheel base 300 for connection, and the other end is inserted into and fixed to the connecting block 200 and extends out of the connecting block 200 .

[0068] The welding wheel 400 is fixed to the welding wheel base 300 and protrudes from the connecting block 200 and the guide column 100 along the axial direction of the guide column 100 .

[0069] The structure and effect of the disassembly tool can be referred to above, and the disassembly tool can be spaced apart from the welding wheel base 300 for easy use during maintenance.

[0070] In some embodiments, there is a gap between the connection block 200 and the welding wheel base 300, and along the axial direction of the guide column 100, the abutment member 1 abuts against the side of the connection block 200 away from the gap, and the hook 2 rotates relative to the abutment member 1 to hook the side of the connection block 200 close to the gap. The operation of the welding wheel 400 can refer to the above.

[0071] There is a gap between the connecting block 200 and the welding wheel base 300. On the one hand, it is convenient for disassembly and assembly of the welding wheel assembly as a whole. On the other hand, without damaging or adjusting the original structure of the welding wheel assembly, the side of the connecting block 200 close to the gap cooperates with the hook 2 to stably hook the connecting hole, thereby reducing the displacement between the abutment 1 and the connecting block 200 and improving the maintenance efficiency.

[0072] It should be noted that the board surface referred to in this application is the surface with the largest area on the structure where the board surface is located. The parallel or perpendicularity involved in this application is relative to the concept of absolute parallelism or absolute perpendicularity in geometry, and a deviation of 0 to 5 degrees is allowed. This application does not impose any restrictions on this.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0074] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0075] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A disassembly tool, characterized in that: Applicable to the disassembly of the guide column and the connecting block, the guide column passes through the connecting block and transitionally fits with the connecting block, both ends of the guide column extend out of the connecting block, and both ends are provided with a threaded center hole, the disassembly tool includes: an abutment member, used for abutting against the connection block and provided with an accommodation groove for accommodating the guide column; A hook, rotatably connected to the abutment member, wherein the hook rotates relative to the abutment member until it hooks the connection block, so as to limit the freedom of the abutment member relative to the connection block; The pulling member can be rotatably inserted into the abutment member, and is provided with a threaded end extending into the accommodating groove and a control end spaced from the abutment member, the threaded end is used to cooperate with the thread of the center hole, and the control end is rotated to rotate the threaded end so that the guide column can be separated from the connecting block.

2. The disassembly tool according to claim 1, characterized in that: The receiving groove is a cylindrical groove, and its axial direction extends in the same direction as the axial direction of the guide column. The diameter of the receiving groove is greater than the diameter of the guide column.

3. The disassembly tool according to claim 2, characterized in that: The pulling member is a bolt, the axial direction of the bolt extends along the axial direction of the cylindrical groove, the head of the bolt is configured as the control end, and the end of the rod of the bolt away from the head is configured as the threaded end.

4. The disassembly tool according to any one of claims 1 to 3, characterized in that: The abutment member is provided with a through hole communicating with the receiving groove, the through hole being used for the threaded end to be inserted, and the disassembly tool further comprises: A retaining ring is sleeved and connected to the threaded end and is located in the receiving groove, and the outer diameter of the retaining ring is larger than the aperture of the through hole.

5. The disassembly tool according to claim 3, characterized in that: The abutment member is a rotary structure, and one end of the abutment member cooperates with the pulling member and is configured as a supporting end, and the other end of the abutment member is provided with the accommodating groove.

6. The disassembly tool according to claim 5, characterized in that: The disassembly tool also includes: The supporting structure includes a supporting portion, a clamping portion and a connecting portion connecting the supporting portion and the clamping portion, wherein the supporting portion abuts against the supporting end, and the clamping portion is provided with a first U-shaped groove which penetrates the abutting member axially, and the groove wall of the first U-shaped groove is used to clamp the peripheral wall of the guide column.

7. The disassembly tool according to claim 6, characterized in that: The support portion is provided with a second U-shaped groove penetrating the abutment member axially, the second U-shaped groove is used to be sleeved on both sides of the bolt, and the maximum width of the second U-shaped groove is greater than or equal to the maximum width of the bolt.

8. The disassembly tool according to claim 7, characterized in that: The supporting portion, the clamping portion and the connecting portion are all plate-shaped structures, and the clamping portion and the supporting portion are both arranged along the radial direction of the abutment, and the plate surface of the connecting portion is in contact with the peripheral wall of the abutment with the largest diameter.

9. A welding wheel assembly, characterized in that: include: The disassembly tool according to any one of claims 1 to 8; A welding wheel base, used for telescopic connection with the frame of the welding machine; A guide column, one end of which is inserted into the welding wheel base for connection, and the other end of which is inserted into and fixed to the connecting block and extends out of the connecting block; The welding wheel is fixed to the welding wheel base and protrudes from the connecting block and the guide column along the axial direction of the guide column.

10. The welding wheel assembly according to claim 9, characterized in that: There is a gap between the connecting block and the welding wheel base, and along the axial direction of the guide column, the abutment abuts against a side of the connecting block away from the gap, and the hook rotates relative to the abutment to hook a side of the connecting block close to the gap.

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