Disassembling jig

Abstract

The utility model discloses a kind of disassembly jigs, disassembly jig includes handle and disassembly piece. Handle is used for user to grip;Disassembly piece is connected with handle, and include insertion part and circular table part, insertion part is columnar, insertion part is used to insert the inner hole of workpiece, to make the outer periphery of insertion part and the hole wall of inner hole abut, circular table part is located insertion part one side along the axis direction of insertion part, and form is limited with the axis of insertion part coincident Limiting conical surface, the vertex of limiting conical surface is located circular table part side towards insertion part, limiting conical surface is connected with the outer periphery of insertion part, limiting conical surface is used to abut with workpiece.The utility model discloses a disassembly jig, on the one hand, limiting conical surface and workpiece abut, can limit insertion part further deeply into the inner hole of workpiece, to reduce the risk of product damage, on the other hand, limiting conical surface can be generated between the hole wall of inner hole of workpiece along the radial of inner hole and abut tightly, facilitate workpiece is taken off from product.

Description

Technical Field

[0001] This utility model relates to the field of maintenance equipment technology, and in particular to a disassembly fixture. Background Technology

[0002] The product typically has a tubular workpiece inside its hole. This workpiece has an inner bore, and its outer circumferential surface abuts against the inner wall of the hole. During product repair, users usually insert a disassembly jig into the workpiece's inner bore to remove it. In existing technology, the workpiece's inner bore is usually small. When the disassembly jig is inserted, the workpiece provides significant resistance, requiring the user to apply considerable force. Once the jig is fully inserted, the resistance decreases, making it difficult for the user to reduce the applied force. This can cause the jig to impact the bottom wall of the hole, potentially damaging the product. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a disassembly fixture that can reduce the risk of product damage.

[0004] This utility model provides a disassembly fixture, which includes a handle and a disassembly component. The handle is for the user to grip; the disassembly component is connected to the handle and includes an insertion part and a frustum-shaped part. The insertion part is cylindrical and is used to insert into the inner hole of the workpiece so that the outer peripheral surface of the insertion part abuts against the hole wall of the inner hole. The frustum-shaped part is located on one side of the insertion part along the axial direction of the insertion part and forms a limiting cone surface whose axis coincides with the axis of the insertion part. The apex of the limiting cone surface is located on the side of the frustum-shaped part facing the insertion part, and the limiting cone surface is connected to the outer peripheral surface of the insertion part. The limiting cone surface is used to abut against the workpiece.

[0005] The disassembly fixture provided by this embodiment of the utility model has at least the following beneficial effects: During the insertion of the insert into the inner hole of the workpiece, the workpiece slides relative to the insert along the outer circumferential surface of the insert. The limiting cone surface on the frustum is connected to the outer circumferential surface of the insert, and the apex of the limiting cone surface is located on the side of the frustum facing the insert. When the insert reaches a preset depth in the inner hole, the workpiece abuts against the limiting cone surface. On the one hand, when the limiting cone surface abuts against the workpiece, the frustum can provide braking force to the insert to limit the insert from further penetrating into the inner hole of the workpiece, thereby reducing the risk of the insert hitting the bottom wall of the hole on the product and thus reducing the risk of product damage. On the other hand, when the limiting cone surface abuts against the workpiece, a radial clamping force is generated between it and the hole wall of the inner hole, which can improve the connection effect between the disassembly fixture and the workpiece, making it easier to remove the workpiece from the product.

[0006] In one embodiment of this implementation, the outer peripheral surface of the insertion part is provided with threads for engaging with the inner hole thread of the workpiece.

[0007] In one embodiment of this implementation, the end face of the insertion part facing away from the frustum portion is a smooth plane, which is used to reduce the friction between the insertion part and the bottom wall of the inner hole of the workpiece.

[0008] In one embodiment of this implementation, the handle is located on the side of the frustum portion away from the insertion portion.

[0009] In one embodiment of this implementation, the disassembly component further includes a columnar mounting portion, and the handle has a mounting hole. The mounting portion extends into the mounting hole and is slidably engaged with the mounting hole along the axial direction of the mounting hole.

[0010] In one embodiment of this implementation, the disassembly fixture further includes a positioning pin. A first pin hole is provided on the mounting part, and a second pin hole is provided on the handle. The second pin hole communicates with the mounting hole. The positioning pin passes through the second pin hole. The mounting part can slide until the first pin hole and the second pin hole are opposite each other, so that the positioning pin can extend into the first pin hole.

[0011] In one embodiment of this implementation, the second pin hole penetrates the handle so that the end face of the positioning pin is exposed to the external environment.

[0012] In one embodiment of this implementation, an elastic element is provided inside the mounting hole. One end of the elastic element is connected to the bottom wall of the mounting hole, and the other end is connected to the mounting part. The elastic element can undergo elastic deformation along the axial direction of the mounting hole.

[0013] In one embodiment of this implementation, the second pin hole is a strip-shaped hole that extends along the axial direction of the mounting hole, so that the positioning pin can slide along the axial direction of the mounting hole.

[0014] In one embodiment of this implementation, a first magnetic element is provided in the first pin hole, and a second magnetic element is provided on the positioning pin. When the positioning pin extends into the first pin hole, the first magnetic element and the second magnetic element attract each other.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a three-dimensional structural diagram of a disassembly fixture according to one embodiment of the present utility model; Figure 2 yes Figure 1 A schematic diagram showing the state of the disassembly fixture when it is inserted into the workpiece; Figure 3 This is a disassembly diagram of a disassembly fixture according to one embodiment of the present invention.

[0017] Figure label: Disassembly fixture 100; handle 10; mounting hole 11; second pin hole 12; disassembly part 20; insertion part 21; thread 211; smooth surface 212; frustum 22; limiting cone surface 221; mounting part 23; first pin hole 231; positioning pin 30; workpiece 200; product 300; bottom wall 310. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0024] Please see Figures 1 to 3 , Figure 1 This is a three-dimensional structural diagram of the disassembly fixture 100 according to one embodiment of the present utility model; Figure 2 yes Figure 1 A schematic diagram showing the state of the disassembly fixture 100 when it is inserted into the workpiece 200; Figure 3 This is a disassembly diagram of a disassembly fixture 100 according to one embodiment of the present invention. The present invention provides a disassembly fixture 100, which includes a handle 10 and a disassembly component 20. The handle 10 is for a user to grip; the disassembly component 20 is connected to the handle 10 and includes an insertion portion 21 and a frustum portion 22. The insertion portion 21 is cylindrical and is used to insert into the inner hole of a workpiece 200, so that the outer peripheral surface of the insertion portion 21 abuts against the wall of the inner hole. The frustum portion 22 is located on one side of the insertion portion 21 along its axial direction and has a limiting cone surface 221 whose axis coincides with the axis of the insertion portion 21. The apex of the limiting cone surface 221 is located on the side of the frustum portion 22 facing the insertion portion 21. The limiting cone surface 221 is connected to the outer peripheral surface of the insertion portion 21 and abuts against the workpiece 200.

[0025] Specifically, the axis of the insertion part 21 is parallel to the X direction, and the frustum part 22 and the insertion part 21 are arranged along the X direction.

[0026] It should be noted that the workpiece 200 is tubular, so that when the workpiece 200 is located in the hole on the product 300, the inner hole of the workpiece 200 exposes the bottom wall 310 of the hole on the product 300. Please refer to [link / reference]. Figure 2To remove the workpiece 200 from the hole in the product 300, the insertion part 21 needs to abut against the inner wall of the workpiece 200, and the insertion part 21 needs to apply sufficient frictional force to the workpiece 200 to pull it out of the hole in the product 300 in the X direction. Therefore, to ensure that the frictional force between the insertion part 21 and the workpiece 200 is large enough, the radial dimension of the insertion part 21 is usually increased to be greater than the radial dimension of the inner hole of the workpiece 200, so that when the insertion part 21 extends into the inner hole of the workpiece 200... The interference fit with the inner hole causes the workpiece 200 to exert a large resistance on the insertion part 21 before it extends into the inner hole of the workpiece 200. The user needs to apply a large force to make the insertion part 21 insert into the inner hole of the workpiece 200. After the insertion part 21 extends into the inner hole of the workpiece 200, the resistance of the workpiece 200 on the insertion part 21 decreases rapidly, which makes it difficult for the user to adjust the force applied to the insertion part 21 in time. As a result, the insertion part 21 may hit the bottom wall 310 of the hole on the product 300.

[0027] In the disassembly fixture 100 of this utility model, during the process of inserting the insertion part 21 into the inner hole of the workpiece 200, the workpiece 200 slides relative to the insertion part 21 along the outer peripheral surface of the insertion part 21. The limiting cone surface 221 on the frustum portion 22 is connected to the outer peripheral surface of the insertion portion 21. The apex of the limiting cone surface 221 is located on the side of the frustum portion 22 facing the insertion portion 21. When the insertion portion 21 enters the inner hole to a preset depth, the workpiece 200 abuts against the limiting cone surface 221. On the one hand, when the limiting cone surface 221 abuts against the workpiece 200, the frustum portion 22 can provide braking force to the insertion portion 21 to limit the insertion portion 21 from further penetrating into the inner hole of the workpiece 200. This reduces the risk of the insertion portion 21 hitting the bottom wall 310 of the hole on the product 300, thereby reducing the risk of damage to the product 300. On the other hand, when the limiting cone surface 221 abuts against the workpiece 200, a radial clamping force is generated between it and the hole wall of the inner hole, which can improve the connection effect between the disassembly jig 100 and the workpiece 200, and facilitate the removal of the workpiece 200 from the product 300.

[0028] Please see Figures 1 to 3 In one embodiment of this implementation, the outer peripheral surface of the insertion part 21 is provided with a thread 211, which is used to engage with the inner hole wall thread 211 of the workpiece 200.

[0029] Specifically, thread 211 extends helically along an axis parallel to the X direction. Understandably, under certain conditions, workpiece 200 is made of an elastic material, and thread 211 can mate with the inner wall of the workpiece 200. The user can rotate the disassembly jig 100 along an axis parallel to the X direction to screw the insertion part 21 into the inner hole of workpiece 200 through thread 211. This reduces the X-direction component of the force that the user needs to apply to the insertion part 21. On the one hand, this improves the user experience; on the other hand, it further reduces the risk of the insertion part 21 impacting the bottom wall 310 of the hole on product 300.

[0030] Please see Figures 1 to 3 In one embodiment of this implementation, the end face of the insertion part 21 facing away from the frustum part 22 is a smooth plane 212, which is used to reduce the friction between the insertion part 21 and the inner hole bottom wall 310 of the workpiece 200.

[0031] Specifically, the end face of the insertion part 21 on the side opposite to the frustum-shaped part 22 is perpendicular to the X direction. It is understandable that when the insertion part 21 is inserted too deeply into the inner hole of the workpiece 200, the end face of the insertion part 21 may come into contact with the bottom wall 310 of the hole on the product 300. Setting the end face of the insertion part 21 to a smooth plane 212 can reduce the risk of the insertion part 21 scratching the bottom wall 310 of the product 300.

[0032] Please see Figures 1 to 3 In one embodiment of this implementation, the handle 10 is located on the side of the frustum portion 22 away from the insertion portion 21.

[0033] Specifically, the insertion part 21, the frustum-shaped part 22, and the handle 10 are arranged sequentially along the X direction. The handle 10 is cylindrical, and its axis coincides with the axis of the disassembly component 20. It is understandable that when the force applied by the user to the disassembly fixture 100 is tilted relative to the X direction, the axis of the insertion part 21 will be deflected relative to the axis of the hole on the product 300. On the one hand, this may cause the insertion part 21 to be subjected to torque applied by the product 300, resulting in bending and damage to the insertion part 21; on the other hand, it may cause damage to the product 300. Positioning the handle 10 on the side of the frustum-shaped part 22 away from the insertion part 21, and aligning the axis of the handle 10 with the axis of the disassembly component 20, allows the user to easily control the direction of the force applied to the handle 10. This allows the user to apply a force parallel to the X direction to the insertion part 21, reducing the risk of damage to both the insertion part 21 and the product 300.

[0034] Please see Figures 1 to 3 In one embodiment of this implementation, the disassembly component 20 further includes a columnar mounting portion 23, and the handle 10 has a mounting hole 11. The mounting portion 23 extends into the mounting hole 11 and is slidably engaged with the mounting hole 11 along the axial direction of the mounting hole 11.

[0035] Specifically, the axis of the mounting part 23 and the axis of the mounting hole 11 are both parallel to the X direction, and the mounting part 23 is located on the side of the frustum-shaped part 22 opposite to the insertion part 21. It is understandable that when the fit between the workpiece 200 and the product 300 is relatively tight, the workpiece 200 may be difficult to separate from the product 300. Under certain conditions, after the insertion part 21 is inserted into the inner hole of the workpiece 200, it is necessary to connect it to the disassembly component 20 through other equipment to drive the disassembly component 20 to separate the workpiece 200 from the product 300. On the one hand, after the user pushes the insertion part 21 into the inner hole of the workpiece 200 through the handle 10, the handle 10 can move away from the insertion part 21 in the X direction, so that the mounting part 23 slides relative to the handle 10 along the axis of the mounting hole 11, and the handle 10 is separated from the disassembly part 20, which can facilitate the connection of the disassembly part 20 with other equipment. On the other hand, it can make the disassembly part 20 replaceable, so that the disassembly part 20 of different sizes can be adapted to the inner hole of the workpiece 200 of different sizes, which is beneficial to improving the adaptability of the disassembly fixture 100.

[0036] Please see Figures 1 to 3 In one embodiment of this implementation, the disassembly fixture 100 further includes a positioning pin 30. The mounting part 23 has a first pin hole 231 and the handle 10 has a second pin hole 12. The second pin hole 12 communicates with the mounting hole 11. The positioning pin 30 passes through the second pin hole 12. The mounting part 23 can slide until the first pin hole 231 is opposite to the second pin hole 12, so that the positioning pin 30 can extend into the first pin hole 231.

[0037] Specifically, the axes of the first pin hole 231 and the second pin hole 12 are parallel to the Y direction, and the positioning pin 30 can slide along the Y direction within the first pin hole 231 and the second pin hole 12. Understandably, under certain conditions, the user needs to directly drive the disassembly component 20 to separate the workpiece 200 from the product 300 via the handle 10. When the positioning pin 30 extends into the first pin hole 231, it restricts the mounting part 23 from sliding relative to the handle 10 along the X direction, allowing the handle 10 to drive the disassembly component 20 to separate the workpiece 200 from the product 300. The positioning pin 30 can slide along the Y direction until it exits the first pin hole 231, allowing the mounting part 23 to slide relative to the handle 10 along the X direction. This configuration further improves the adaptability of the disassembly fixture 100.

[0038] Please see Figures 1 to 3 In one embodiment of this implementation, the second pin hole 12 penetrates the handle 10 so that the end face of the positioning pin 30 is exposed to the external environment.

[0039] Specifically, the second pin hole 12 penetrates the handle 10 along the Y direction, exposing the two end faces of the positioning pin 30 to opposite sides of the handle 10 along the Y direction, and the first pin hole 231 penetrates the mounting portion 23 along the Y direction. It is understood that when the workpiece 200 is removed from the product 300, the positioning pin 30 will be subjected to a force perpendicular to its axis, making it prone to bending and difficult to disengage from the first pin hole 231. By penetrating the handle 10 through the second pin hole 12 and exposing the two end faces of the positioning pin 30 to opposite sides of the handle 10, when the positioning pin 30 is bent and difficult to disengage from the first pin hole 231, other tools can be inserted into the second pin hole 12 and abut against the end faces of the positioning pin 30 to push it out of the first pin hole 231. This reduces the risk that the positioning pin 30 will be unable to disengage from the first pin hole 231, thus preventing the disassembly fixture 100 from functioning properly.

[0040] Please see Figures 1 to 3 In one embodiment of this implementation, an elastic element is provided in the mounting hole 11. One end of the elastic element is connected to the bottom wall 310 of the mounting hole 11, and the other end is connected to the mounting part 23. The elastic element can undergo elastic deformation along the axial direction of the mounting hole 11.

[0041] Specifically, the elastic element is a spring with its axis parallel to the X direction, and it can undergo elastic deformation along the X direction. It can be understood that when the end face of the insertion part 21 contacts the bottom wall 310 of the product 300, the product 300 applies a force parallel to the X direction to the insertion part 21. The elastic element can be compressed along the X direction to convert the kinetic energy of the insertion part 21 into elastic potential energy and to provide cushioning for the contact between the insertion part 21 and the product 300, thereby further reducing the risk of damage to the product 300.

[0042] Please see Figure 3 In one embodiment of this implementation, the second pin hole 12 is a strip-shaped hole that extends along the axial direction of the mounting hole 11 so that the positioning pin 30 can slide along the axial direction of the mounting hole 11.

[0043] Specifically, the second pin hole 12 is a strip-shaped hole extending along the X direction, and the positioning pin 30 can move within the strip-shaped hole along the X direction. It can be understood that by setting the second pin hole 12 as a strip-shaped hole, the sliding stroke of the connector relative to the handle 10 can be limited while allowing the disassembly component 20 to slide relative to the handle 10. On the one hand, this limits the disassembly component 20 from leaving the mounting hole 11, improving the overall stability of the disassembly fixture 100 while maintaining the characteristic that the disassembly component 20 can slide relative to the handle 10. On the other hand, when a spring is provided in the mounting hole 11, the extension of the spring can be limited by restricting the sliding stroke of the disassembly component 20. When the disassembly component 20 separates the workpiece 200 from the product 300, the risk of excessive spring extension leading to failure to return to its original position can be reduced.

[0044] Please see Figures 1 to 3 In one embodiment of this implementation, a first magnetic element is provided in the first pin hole 231, and a second magnetic element is provided on the positioning pin 30. When the positioning pin 30 extends into the first pin hole 231, the first magnetic element and the second magnetic element attract each other.

[0045] Specifically, both the first and second magnetic components are magnets. It is understandable that unintended sliding of the positioning pin 30 within the first pin hole 231 could cause the disassembly component 20 to separate from the handle 10, thus hindering the user's process of removing the workpiece 200 from the product 300. By providing a first magnetic component within the first pin hole 231 and a second magnetic component on the positioning pin 30, the attraction between the first and second magnetic components restricts the sliding of the positioning pin 30 relative to the disassembly component 20. This reduces the risk of unintended sliding of the positioning pin 30 within the first pin hole 231, improving the user experience.

[0046] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A disassembly fixture, characterized in that, include: A handle for the user to grip; The disassembly component, connected to the handle, includes an insertion part and a frustum-shaped part. The insertion part is cylindrical and is used to insert into the inner hole of a workpiece so that the outer peripheral surface of the insertion part abuts against the wall of the inner hole. The frustum-shaped part is located on one side of the insertion part along the axial direction of the insertion part and forms a limiting cone surface whose axis coincides with the axis of the insertion part. The apex of the limiting cone surface is located on the side of the frustum-shaped part facing the insertion part. The limiting cone surface is connected to the outer peripheral surface of the insertion part and is used to abut against the workpiece.

2. The disassembly fixture according to claim 1, characterized in that, The outer circumferential surface of the insertion part is provided with threads, which are used to engage with the inner hole thread of the workpiece.

3. The disassembly fixture according to claim 2, characterized in that, The end face of the insertion part facing away from the frustum portion is a smooth plane, which is used to reduce the friction between the insertion part and the bottom wall of the inner hole of the workpiece.

4. The disassembly fixture according to claim 1, characterized in that, The handle is located on the side of the frustum portion opposite to the insertion portion.

5. The disassembly fixture according to claim 1, characterized in that, The disassembly component also includes a columnar mounting part, and the handle has a mounting hole. The mounting part extends into the mounting hole and is slidably engaged with the mounting hole along the axial direction of the mounting hole.

6. The disassembly fixture according to claim 5, characterized in that, The disassembly fixture also includes a positioning pin. The mounting part has a first pin hole, and the handle has a second pin hole. The second pin hole is connected to the mounting hole. The positioning pin passes through the second pin hole. The mounting part can slide until the first pin hole and the second pin hole are opposite each other, so that the positioning pin can extend into the first pin hole.

7. The disassembly fixture according to claim 6, characterized in that, The second pin hole penetrates the handle so that the end face of the positioning pin is exposed to the external environment.

8. The disassembly fixture according to claim 5, characterized in that, An elastic element is provided inside the mounting hole. One end of the elastic element is connected to the bottom wall of the mounting hole, and the other end is connected to the mounting part. The elastic element can undergo elastic deformation along the axial direction of the mounting hole.

9. The disassembly fixture according to claim 6, characterized in that, The second pin hole is a strip-shaped hole that extends along the axial direction of the mounting hole, so that the positioning pin can slide along the axial direction of the mounting hole.

10. The disassembly fixture according to claim 6, characterized in that, A first magnetic element is provided in the first pin hole, and a second magnetic element is provided on the positioning pin. When the positioning pin is inserted into the first pin hole, the first magnetic element and the second magnetic element attract each other.

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