Disassembling and assembling tool for cylinder lining in stud welding gun

Abstract

The utility model discloses a disassembling and assembling tool for a cylinder lining in a stud welding gun, which comprises a connector which comprises a connecting section and a rotating section. The connecting section comprises a first barrel, and the size of the inner wall of the first barrel is matched with that of a cylinder shell; the end face of the first barrel is fixedly connected with at least two connecting protrusions which are oppositely arranged, the extending direction of the connecting protrusions is the same as the radial direction of the first barrel, or the size of the outer wall of the first barrel is matched with the size of the inner wall of the air cylinder lining, the outer wall of the first barrel is fixedly connected with at least two fixing strips which are oppositely arranged, and the fixing strips are arranged on the outer wall of the first barrel. The width direction of the fixing strip is the same as the radial direction of the first barrel, the second end face of the fixing strip is flush with the end face, away from the rotating section, of the first barrel, and the connecting protrusion or the second end face of the fixing strip is matched with a notch in the end face of the air cylinder lining. A rotating structure is arranged on the rotating section and used for rotating the connecting section. The disassembling and assembling tool is simple in structure and convenient to operate, and does not damage the air cylinder lining.

Description

Technical Field

[0001] The present application relates to the technical field of disassembly and assembly tools, and in particular, to a disassembly and assembly tool for a cylinder liner in a stud welding gun. Background Art

[0002] In the field of automobile manufacturing, the studs that need to be welded on the body of the car are all welded in the welding workshop by stud welding guns. Due to the high production capacity and high production rhythm, there are nearly 100 stud welding guns in the existing welding workshop. Each stud welding gun welds about 9,600 studs per day, which requires the cylinder of the stud welding gun to move frequently, resulting in the loosening and falling off of the cylinder liner, which causes frequent fault alarms. Therefore, the stud welding gun needs regular maintenance. Since the cylinder liner is sleeved on the cylinder, and its inner wall is threadedly connected to the outer wall of the cylinder, and four notches with a size of about 1 cm are opened on its end face in a cross shape, in the prior art, during the maintenance process, a flat-blade screwdriver is inserted obliquely into one of the notches, and then a hammer is used to knock and rotate the cylinder liner to achieve the disassembly and assembly of the cylinder and the cylinder liner. However, this disassembly and assembly method is prone to deformation and damage of the cylinder liner, affecting the use of the cylinder liner. Utility Model Content

[0003] To solve at least one aspect of the above problems, the utility model provides a disassembly and assembly tool for a cylinder liner in a stud welding gun, comprising a connecting head, the connecting head comprising a connecting section and a rotating section distributed along the x direction; the connecting section comprises a first tube extending along the x direction, the size of the inner wall of the first tube matches the size of the cylinder shell; at least two connecting protrusions are fixedly connected to the end surface of the first tube away from the rotating section, the two connecting protrusions are arranged oppositely, the extending direction of the connecting protrusions is the same as the radial direction of the first tube, or the size of the outer wall of the first tube matches the size of the inner wall of the cylinder liner, at least two fixing strips extending along the x direction are arranged on the outer wall of the first tube, the two fixing strips are arranged oppositely, the width direction of the fixing strip is the same as the radial direction of the first tube, the first end surface of the fixing strip along the x direction is fixedly connected to the outer wall of the first tube, the second end surface of the fixing strip perpendicular to the x direction is flush with the end surface of the first tube away from the rotating section, the size and shape of the connecting protrusion or the second end surface of the fixing strip are adapted to the size and shape of the notch on the end surface of the cylinder liner; a rotating structure is arranged on the rotating section for rotating the connecting section.

[0004] Through the above technical scheme, a special connecting head is designed to match the end face of the cylinder liner. When the cylinder liner needs to be disassembled, the connecting protrusion or the second end face of the fixing strip of the connecting head is aligned with the notch on the end face of the cylinder liner and inserted into the notch. The connecting head is rotated by the rotating structure to drive the cylinder liner to rotate, so that the cylinder liner can be disassembled and assembled. At this time, the cylinder is located in the first tube to prevent the cylinder from interfering with the tool of the present application. The disassembly and assembly tool of the present application has a simple structure, is easy to operate, and will not cause damage to the cylinder liner.

[0005] Preferably, when a fixing strip is provided on the first tube, the connecting section further comprises a second tube, the second tube is sleeved on the first tube and is coaxially arranged with the first tube, the size of the inner wall of the second tube matches the size of the outer wall of the cylinder liner, the fixing strip extends from the outer wall of the first tube to the inner wall of the second tube along the radial direction of the first tube, and is fixedly connected to the inner wall of the second tube. With the above technical solution, when the second end face of the fixing strip is inserted into the notch of the cylinder liner, the cylinder liner is located between the first tube and the second tube, which helps to improve the stability of the connection between the cylinder liner and the connecting head.

[0006] Preferably, there are four connecting protrusions or fixing strips, and the four connecting protrusions are arranged on the end surface of the first cylinder or the four fixing strips are arranged on the outer wall of the first cylinder in a cross shape. When in use, the second end surfaces of the four connecting protrusions or the four fixing strips are respectively inserted into the four notches of the cylinder liner, which helps to increase the connection area between the connecting head and the cylinder liner, thereby further improving the stability of the connection between the connecting head and the cylinder liner, and saving more effort when rotating the connecting head.

[0007] Preferably, the dimension of the first tube extending along the x-direction ranges from 15 to 25 mm.

[0008] Since the rotating section needs to withstand external force, preferably, the rotating section is a solid structure, which helps to improve the strength of the rotating section and thus increase the service life of the connector.

[0009] Preferably, the rotating structure is a through hole, which is provided on the rotating section, and the extending direction of the through hole is the same as the radial direction of the first tube; a rotating rod is inserted into the through hole, and the length of the rotating rod is greater than the length of the through hole. Through the above technical solution, a specific structure of the rotating structure is disclosed. When in use, the rotating rod is inserted into the through hole, and the connector is driven to rotate by rotating the rotating rod.

[0010] Preferably, a plurality of through holes are provided.

[0011] Preferably, a connection hole extending along the x-direction is provided on the end surface of the rotating section away from the connecting section, and the size of the inner wall of the connection hole matches the size of the connecting column on the ratchet wrench. Through the above technical solution, another specific structure of the rotating structure is disclosed. When in use, the connecting column of the ratchet wrench is inserted into the connection hole, and the connecting head is driven to rotate by rotating the ratchet wrench.

[0012] Preferably, a groove is provided on the inner wall of the connecting hole, and the size of the groove matches the size of the telescopic steel ball on the connecting column. When the connecting column is inserted into the connecting hole, the telescopic steel ball corresponds to the groove, which helps to improve the stability of the connection between the connecting column of the ratchet wrench and the connecting hole of the connecting head.

[0013] Preferably, the connecting head is made of chrome vanadium steel.

[0014] The utility model discloses a disassembly and assembly tool for a cylinder liner in a stud welding gun, which has the following beneficial effects:

[0015] By designing the first tube to match the size of the cylinder shell, it is helpful to avoid interference with the cylinder when using the disassembly and assembly tool of the present application; when the wall thickness of the first tube is relatively large, connecting protrusions distributed in a cross shape are set on the end face of the first tube, or when the wall thickness of the first tube is relatively small, the size of the outer wall of the first tube matches the size of the inner wall of the cylinder liner, and fixing strips distributed in a cross shape are set on the outer wall of the first tube, so that when in use, the second end faces of the four connecting protrusions or fixing strips are respectively inserted into the four notches on the end face of the cylinder liner; by setting a through hole or connecting hole on the rotating section, and matching it with a rotating rod or ratchet wrench, the rotation of the connecting head can be realized, thereby realizing the disassembly and assembly of the cylinder liner. The disassembly and assembly tool of the present application has a simple structure, is easy to operate, and will not cause damage to the cylinder liner. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to better understand the above and other purposes, features, advantages and functions of the present invention, reference may be made to the embodiments shown in the accompanying drawings. The same reference numerals in the accompanying drawings refer to the same components. It should be understood by those skilled in the art that the accompanying drawings are intended to schematically illustrate the preferred embodiments of the present invention and have no limiting effect on the scope of the present invention, and the components in the drawings are not drawn to scale.

[0017] Figure 1 An end view of a cylinder liner in the prior art is shown;

[0018] Figure 2 A side view of a cylinder and a cylinder liner connected in the prior art is shown;

[0019] Figure 3 A schematic structural diagram of a disassembly and assembly tool for a cylinder liner in a stud welding gun according to an embodiment of the utility model is shown;

[0020] Figure 4 An end view of a rotating section of a disassembly and assembly tool for a cylinder liner in a stud welding gun according to an embodiment of the utility model is shown;

[0021] Figure 5 A side view of a disassembly and assembly tool for a cylinder liner in a stud welding gun according to an embodiment of the utility model is shown;

[0022] Figure 6 The end view of a connecting section of a disassembly and assembly tool for a cylinder liner in a stud welding gun according to another embodiment of the utility model is shown.

[0023] Description of reference numerals:

[0024] 1. Connecting section; 11. First tube; 12. Fixing strip; 13. Second tube; 14. Connecting protrusion; 2. Rotating section; 21. Through hole; 211. Rotating rod; 22. Connecting hole; 221. Groove; 3. Cylinder; 4. Cylinder bushing; 41. Notch. DETAILED DESCRIPTION

[0025] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0026] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0027] In order to at least partially solve the above problems and one or more of other potential problems, an embodiment of the present disclosure provides a disassembly and assembly tool for a cylinder liner in a stud welding gun, comprising a connecting head, the connecting head comprising a connecting section 1 and a rotating section 2 distributed along the x direction; the connecting section 1 comprises a first barrel 11 extending along the x direction, the size of the inner wall of the first barrel 11 matches the size of the outer shell of the cylinder 3; at least two connecting protrusions 14 are fixedly connected to the end surface of the first barrel 11 away from the rotating section 2, the two connecting protrusions 14 are arranged opposite to each other, the extending direction of the connecting protrusions 14 is the same as the radial direction of the first barrel 11, or the size of the outer wall of the first barrel 11 is the same as the radial direction of the first barrel 11. The size matches the size of the inner wall of the cylinder liner 4. At least two fixing strips 12 extending along the x direction are arranged on the outer wall of the first tube 11. The two fixing strips 12 are arranged opposite to each other. The width direction of the fixing strip 12 is the same as the radial direction of the first tube 11. The first end face of the fixing strip 12 along the x direction is fixedly connected to the outer wall of the first tube 11. The second end face of the fixing strip 12 perpendicular to the x direction is flush with the end face of the first tube 11 away from the rotating section 2. The size and shape of the connecting protrusion 14 or the second end face of the fixing strip 12 are adapted to the size and shape of the notch 41 on the end face of the cylinder liner 4. A rotating structure is arranged on the rotating section 2 for rotating the connecting section 1.

[0028] like Figure 1 and Figure 2 As shown, in the prior art, the cylinder liner 4 is sleeved on the outer wall of the cylinder 3, the inner wall of the cylinder liner 4 is threadedly connected to the outer wall of the cylinder 3, and the end of the cylinder 3 extends out of the cylinder liner 4; four notches 41 are opened on the end surface of the cylinder liner 4, and the extension direction of the notch 41 is the same as the radial direction of the cylinder liner 4, and the four notches 41 are distributed in a cross shape. The cross-shaped distribution means that the four notches 41 are opposite to each other, and the connecting line of two notches 41 arranged opposite to each other in one group is perpendicular to the connecting line of two notches 41 arranged opposite to each other in another group.

[0029] like Figures 3 to 6 As shown, the connector is made of chrome vanadium steel in one piece, and the connector includes a connecting section 1 and a rotating section 2 distributed along the x direction, wherein the x direction is as shown in FIG. Figure 3 As shown, when the cross section of the outer wall of the connector is circular, the x direction is the axial direction of the connector.

[0030] The connecting section 1 includes a first tube 11 extending along the x direction. The size of the inner wall of the first tube 11 matches the size of the outer shell of the cylinder 3. The preferred size range of the first tube 11 extending along the x direction is 15 to 25 mm. In some embodiments, the wall thickness of the first tube 11 is relatively large, that is, when the wall thickness of the first tube 11 matches the wall thickness of the cylinder liner 4, Figure 6As shown, at least two connecting protrusions 14 are fixedly connected to the end face of the first tube 11 away from the rotating section 2, and the two connecting protrusions 14 are arranged opposite to each other. The extending direction of the connecting protrusions 14 is the same as the radial direction of the first tube 11. Preferably, four connecting protrusions 14 are arranged, and the four connecting protrusions 14 are distributed in a cross shape on the end face of the first tube 11. The size and shape of the connecting protrusions 14 are adapted to the size and shape of the notches 41 on the end face of the cylinder liner 4. When in use, the four connecting protrusions 14 are respectively inserted into the four notches 41.

[0031] In other embodiments, Figure 3 As shown, the wall thickness of the first cylinder 11 is relatively small, and the size of the outer wall of the first cylinder 11 matches the size of the inner wall of the cylinder liner 4. At least two fixing bars 12 extending along the x direction are arranged on the outer wall of the first cylinder 11, and the two fixing bars 12 are arranged opposite to each other. The width direction of the fixing bars 12 is the same as the radial direction of the first cylinder 11, and the width direction is a direction perpendicular to its extension direction. Preferably, four fixing bars 12 are arranged, and the four fixing bars 12 are distributed in a cross shape on the outer wall of the first cylinder 11. The first end face of the fixing bar 12 along the x direction is fixedly connected to the outer wall of the first cylinder 11, and the second end face of the fixing bar 12 perpendicular to the x direction is flush with the end face of the first cylinder 11 away from the rotating section 2. The fixing bar 12 The size and shape of the second end face are adapted to the size and shape of the notch 41 on the end face of the cylinder liner 4. When in use, the second end faces of the four fixing strips 12 are respectively inserted into the four notches 41; more preferably, the connecting section 1 also includes a second tube 13; the diameter of the second tube 13 is greater than the diameter of the first tube 11, the second tube 13 is sleeved on the first tube 11, and is coaxially arranged with the first tube 11, the size of the inner wall of the second tube 13 matches the size of the outer wall of the cylinder liner 4, the fixing strip 12 extends from the outer wall of the first tube 11 to the inner wall of the second tube 13 along the radial direction of the first tube 11, and the inner wall of the second tube 13 is fixedly connected to the third end faces of two or four fixing strips 12 opposite to their first end faces.

[0032] like Figure 3 As Figure 5 As shown, a rotating structure is provided on the rotating section 2 for rotating the connecting section 1; preferably, the rotating section 2 is a solid structure. In this embodiment, the rotating section 2 is cylindrical, the axis of the rotating section 2 is colinear with the axis of the second barrel 13, and the outer diameter of the rotating section 2 is equal to the outer diameter of the second barrel 13; in some embodiments, such as Figure 3 As shown, the rotating structure is a through hole 21. Preferably, a plurality of through holes 21 are provided. The through holes 21 are opened on the rotating section 2. The extending direction of the through holes 21 is the same as the radial direction of the first cylinder 11. A rotating rod 211 is inserted into the through hole 21. The length of the rotating rod 211 is greater than the length of the through hole 21. In other embodiments, such as Figure 4As shown, a connecting hole 22 extending along the x direction is provided at the center of the end surface of the rotating section 2 away from the connecting section 1. Since the connecting column of the ratchet wrench in the prior art is a quadrangular prism, a hexagonal prism or a multi-prism structure, the connecting hole 22 can be selected to be a square, a hexagon or other polygonal shape. The size and shape of the inner wall of the connecting hole 22 match the size and shape of the connecting column on the ratchet wrench. Preferably, a groove 221 is provided on the inner wall of the connecting hole 22. The size of the groove 221 matches the size of the telescopic steel ball on the connecting column. When the connecting column is inserted into the connecting hole 22, the telescopic steel ball corresponds to the groove 221. In this embodiment, as shown in FIG. Figure 5 As shown, the rotating structure through hole 21 and the rotating structure connecting hole 22 are simultaneously arranged on the rotating section 2 to realize two rotation modes.

[0033] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the present invention.

Claims

1. A disassembly and assembly tool for a cylinder liner in a stud welding gun, characterized in that: The invention comprises a connecting head, wherein the connecting head comprises a connecting section (1) and a rotating section (2) distributed along the x direction; the connecting section (1) comprises a first tube (11) extending along the x direction, the inner wall of the first tube (11) having a size matching the size of the outer shell of a cylinder (3); at least two connecting protrusions (14) are fixedly connected to the end surface of the first tube (11) away from the rotating section (2), the two connecting protrusions (14) are arranged opposite to each other, the extending direction of the connecting protrusions (14) is the same as the radial direction of the first tube (11), or the outer wall of the first tube (11) has a size matching the size of the inner wall of the cylinder liner (4), and at least two connecting protrusions (14) are arranged on the outer wall of the first tube (11) Two fixing bars (12) extend along the x direction, the two fixing bars (12) are arranged opposite to each other, the width direction of the fixing bars (12) is the same as the radial direction of the first tube (11), the first end face of the fixing bars (12) along the x direction is fixedly connected to the outer wall of the first tube (11), the second end face of the fixing bars (12) perpendicular to the x direction is flush with the end face of the first tube (11) away from the rotating section (2), the size and shape of the connecting protrusion (14) or the second end face of the fixing bars (12) are matched with the size and shape of the notch (41) on the end face of the cylinder liner (4); and a rotating structure is arranged on the rotating section (2) for rotating the connecting section (1).

2. A disassembly and assembly tool for a cylinder liner in a stud welding gun according to claim 1, characterized in that: When a fixing strip (12) is provided on the first tube (11), the connecting section (1) further comprises a second tube (13), the second tube (13) being sleeved on the first tube (11) and being coaxially arranged with the first tube (11), the size of the inner wall of the second tube (13) matching the size of the outer wall of the cylinder liner (4), the fixing strip (12) extending from the outer wall of the first tube (11) to the inner wall of the second tube (13) along the radial direction of the first tube (11), and being fixedly connected to the inner wall of the second tube (13).

3. A disassembly and assembly tool for a cylinder liner in a stud welding gun according to claim 1, characterized in that: Four connecting protrusions (14) or fixing strips (12) are provided, and the four connecting protrusions (14) are distributed in a cross shape on the end surface of the first tube (11) or the four fixing strips (12) are distributed on the outer wall of the first tube (11).

4. A disassembly and assembly tool for a cylinder liner in a stud welding gun according to claim 1, characterized in that: The dimension of the first tube (11) extending along the x direction ranges from 15 to 25 mm.

5. A disassembly and assembly tool for a cylinder liner in a stud welding gun according to claim 1, characterized in that: The rotating section (2) is a solid structure.

6. A disassembly and assembly tool for a cylinder liner in a stud welding gun according to any one of claims 1 to 5, characterized in that: The rotating structure is a through hole (21), which is provided on the rotating section (2), and the extending direction of the through hole (21) is the same as the radial direction of the first tube (11); a rotating rod (211) is inserted into the through hole (21), and the length of the rotating rod (211) is greater than the length of the through hole (21).

7. A disassembly and assembly tool for a cylinder liner in a stud welding gun according to claim 6, characterized in that: A plurality of through holes (21) are provided.

8. A disassembly and assembly tool for a cylinder liner in a stud welding gun according to claim 5, characterized in that: A connecting hole (22) extending along the x-direction is provided on the end surface of the rotating section (2) away from the connecting section (1); the size of the inner wall of the connecting hole (22) matches the size of the connecting column on the ratchet wrench.

9. A disassembly and assembly tool for a cylinder liner in a stud welding gun according to claim 8, characterized in that: A groove (221) is provided on the inner wall of the connection hole (22), the size of the groove (221) matches the size of the telescopic steel ball on the connection column, and when the connection column is inserted into the connection hole (22), the telescopic steel ball corresponds to the groove (221).

10. A disassembly and assembly tool for a cylinder liner in a stud welding gun according to claim 1, characterized in that: The connecting head is made of chrome-vanadium steel.

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