CN210160661U - Hydraulic cylinder bottom welding tool - Google Patents
Hydraulic cylinder bottom welding tool Download PDFInfo
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- CN210160661U CN210160661U CN201920707665.4U CN201920707665U CN210160661U CN 210160661 U CN210160661 U CN 210160661U CN 201920707665 U CN201920707665 U CN 201920707665U CN 210160661 U CN210160661 U CN 210160661U
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Abstract
The utility model relates to a hydraulic cylinder bottom welding frock, including chuck and support frame, the central centre of chuck is held the dabber, the dabber is connected with the first end fixed connection of L shape support, the second end level of L shape support is arranged, and second end upper surface is equipped with the cushion, the cushion is used for supporting cylinder bottom bush so that cylinder bottom bush is in same level with the axis of dabber, the excircle surface of cushion can laminate with the medial surface of the hole in the cylinder bottom bush so as to restrict the displacement of cylinder bottom bush in the horizontal direction; the cylinder bottom lining is arranged between the pressing plate and the cushion block. The utility model can ensure the coaxiality of the cylinder body and the cylinder barrel assembly, and the verticality of the end surface between the obtained cylinder bottom and the cylinder barrel assembly meets the requirement; the inner hole of the cylinder barrel assembly is prevented from being damaged by the three-jaw support structure.
Description
Technical Field
The utility model belongs to the technical field of hydraulic cylinder, concretely relates to hydraulic cylinder bottom of cylinder welding frock.
Background
In the production process of the hydraulic oil cylinder, the cylinder bottom of the hydraulic oil cylinder is required to be placed into an inner hole of the cylinder barrel assembly, and then the cylinder bottom and the cylinder barrel assembly are welded.
The welding mode of the cylinder bottom of the existing hydraulic cylinder known by the inventor is as follows: the cylinder barrel assembly is vertically placed on the ground, the cylinder barrel assembly inner hole is hammered into the cylinder barrel assembly rabbet through manual work, and after the cylinder bottom is hammered, 4 welding spots are required to be manually and uniformly spot-welded to fix the cylinder bottom. Then hoist it to the welding machine on, the three-jaw props the structure and props the cylinder hole, and the support frame supports the cylinder lateral wall, manual welding cylinder bottom.
The inventor considers that the welding tool has the following defects:
1) because the cylinder bottom is heavier, a large amount of manpower is consumed for carrying the cylinder body, the condition that the cylinder bottom is not hit in place or is hit askew exists, and the end face of the cylinder bottom is not completely matched with the end face of the cylinder barrel assembly, so that the coaxiality of the cylinder bottom and the center of the cylinder barrel assembly is seriously influenced, and the verticality of the cylinder bottom and the end face of the cylinder barrel assembly is influenced.
2) The possibility of damaging the inner hole exists in the process of supporting the inner hole by the three-jaw support structure, and the sealing effect of the oil cylinder is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art, providing a hydraulic cylinder bottom welding tool, realizing the process of inserting the cylinder bottom into the inner hole of the cylinder barrel assembly, ensuring the coaxiality of the cylinder body and the cylinder barrel assembly, and meeting the requirement of the verticality of the end surface between the obtained cylinder bottom and the cylinder barrel assembly; the inner hole of the cylinder barrel assembly is prevented from being damaged by the three-jaw support structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a hydraulic cylinder end welding frock, includes chuck and support frame, the central centre gripping of chuck has the dabber, the dabber is with the first end fixed connection of L shape support, the second end level of L shape support is arranged, and second end upper surface is equipped with the cushion, the cushion is used for supporting cylinder end bush so that cylinder end bush is in same level with the axis of dabber, the excircle surface of cushion can with the medial surface laminating of hole in the cylinder end bush in order to restrict the displacement of cylinder end bush cover at the horizontal direction.
The cushion blocks are adopted to realize the support of the cylinder bottom lining and the cylinder bottom, the heights of the cylinder bottom lining and the cylinder bottom can be changed by utilizing different cushion blocks, and a foundation is provided for the coaxial arrangement of the cylinder bottom and the cylinder barrel component.
The cylinder bottom lining is arranged between the pressing plate and the cushion block, and the pressing plate and the first locking piece are used for limiting the translation and the rotation of the cylinder bottom lining in the vertical direction.
The pressing plate is matched with the first locking piece for use, the cylinder bottom is prevented from rotating along the vertical direction through the pressing and fixing of the pressing plate, and the cylinder bottom can be arranged coaxially with the mandrel after the position of the cylinder bottom bushing and the position of the cylinder bottom are adjusted.
The support frame is used for supporting the cylinder barrel assembly, one side, far away from the L-shaped support, of the support frame is provided with a welding machine tip cone, and the welding machine tip cone can push the cylinder barrel assembly to move towards the direction of the cylinder bottom, so that the cylinder bottom is connected with the cylinder barrel assembly in an inserting mode. The welding machine tip cone is a conical structural part, and sharp corners in the welding machine tip cone are arranged towards the L-shaped support.
Adopt welding machine tip cone structure, can make the even atress of the one end that the cylinder barrel subassembly kept away from the cylinder bottom, avoid the cylinder bottom that the atress is inhomogeneous to cause and cylinder barrel subassembly axis skew, the terminal surface phenomenon of not coinciding.
Further, the bottom and the second end of fixed axle pass through second retaining member fixed connection, the second retaining member is the bolt.
Further, the support frame can adjust the height of vertical direction so that the axis coincidence of cylinder subassembly and dabber.
Support frame height-adjustable makes this welding frock can be applicable to the cylinder subassembly of different diameter specifications for the cylinder subassembly can set up with the dabber is coaxial.
Further, the welding machine tip cone can extend into one end of the cylinder barrel assembly far away from the cylinder bottom and push the cylinder barrel assembly to move towards the direction of the cylinder bottom.
Further, the welding machine tip cone is connected with a linear driving component, and the linear driving component is used for driving the welding machine tip cone to do reciprocating linear motion along the axis direction of the cylinder barrel.
Further, the linear driving component is an air cylinder, a cylinder body of the air cylinder is fixedly connected with the external support, and the tail end of a piston rod of the air cylinder is fixedly connected with a tip cone of the welding machine.
The cylinder is adopted to push the welding machine tip cone to move, so that the stress direction of the welding machine tip cone coincides with the axis of the welding machine tip cone.
The utility model has the advantages that:
1) the utility model adopts the air cylinder to push, reduces the process of smashing the cylinder bottom, saves the cost, improves the efficiency, is convenient to operate, and effectively maintains the shape tolerance, the welding quality, the installation size and the oil cylinder sealing effect; the welding device is suitable for welding cylinder bottoms of different specifications and has strong universality.
2) The cushion blocks are adopted to realize the positioning of the cylinder bottom lining and the cylinder bottom, and different cushion blocks can be utilized to change the heights of the cylinder bottom lining and the cylinder bottom, so that a foundation is provided for the coaxial arrangement of the cylinder bottom and the cylinder barrel assembly.
3) The pressing plate is matched with the first locking piece for use, the cylinder bottom is prevented from rotating along the vertical direction through the pressing and fixing of the pressing plate, and the cylinder bottom can be arranged with the mandrel in a coaxial mode after the cylinder bottom lining and the cylinder bottom are adjusted.
4) Adopt welding machine tip cone structure, can make the even atress of the one end that the cylinder barrel subassembly kept away from the cylinder bottom, avoid the cylinder bottom that the atress is inhomogeneous to cause and cylinder barrel subassembly axis skew, the terminal surface phenomenon of not coinciding.
5) Support frame height-adjustable makes this welding frock can be applicable to the cylinder subassembly of different diameter specifications for the cylinder subassembly can set up with the dabber is coaxial.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a schematic view of a front view of the embodiment of the present invention, after rotating 90 degrees counterclockwise, of the overall structure and the cylinder assembly;
FIG. 2 is a schematic view of the direction of view A-A of FIG. 1 according to the present invention;
fig. 3 is a schematic diagram of a top view of the overall structure and the cylinder assembly, etc., which are used together after rotating 90 degrees counterclockwise in the embodiment of the present invention;
fig. 4 is a schematic structural diagram of the cushion block in the embodiment of the present invention.
In the figure: 1. a three-jaw chuck; 2. a mandrel; 3. an L-shaped bracket; 3A, a first end; 3B, a second end; 4. pressing a plate; 5. a bolt; 6. a fixed shaft; 7. cushion blocks; 7A, a secondary boss; 7B, a primary boss; 8. a support frame; 9. a welding machine tip cone; 10. a cylinder bottom liner; 11. a cylinder bottom; 12. the cylinder subassembly.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In a typical embodiment of the present invention, as shown in fig. 1-3, a hydraulic cylinder bottom 11 welding tool comprises a chuck and a support frame 8, wherein the chuck is a three-jaw chuck 1. The central centre of chuck is pressed from both sides and is held dabber 2, dabber 2 and the first end 3A fixed connection of L shape support 3, the second end 3B level of L shape support 3 is arranged, and second end 3B upper surface is equipped with cushion 7, cushion 7 is used for supporting 11 bushes 10 at the bottom of the cylinder so that 11 bushes 10 at the bottom of the cylinder are in same level with the axis of dabber 2, the excircle surface of cushion 7 can be laminated with the medial surface of hole in the bush at the bottom of the cylinder in order to restrict the displacement of cylinder end bush cover at the horizontal direction.
Specifically, cushion 7 is cylindrical boss structure, cushion 7 includes one-level boss 7B and second grade boss 7A, one-level boss 7B and second grade boss 7A are the ring shape structure, and one-level boss 7B's external diameter is greater than second grade boss 7A's external diameter, second grade boss 7A's external diameter equals with the diameter of hole in 11 bushes 10 at the bottom of the cylinder.
The heights of the first-stage bosses 7B of different cushion blocks 7 are different, and by replacing the cushion blocks 7 with different specifications, the axes of the cylinder bottom 11 and the cylinder barrel and the axis of the mandrel 2 are at the same horizontal height when the cylinder bottom 11 and the cylinder barrel assembly 12 with different diameters are welded.
A fixed shaft 6 is arranged in an inner hole of the cushion block 7, the upper part of the fixed shaft 6 is connected with the pressure plate 4 through a first locking piece, the lower part of the fixed shaft 6 is fixedly connected with the L-shaped bracket 3, the cylinder bottom 11 bush 10 is arranged between the pressure plate 4 and the cushion block 7, and the pressure plate 4 and the first locking piece are used for limiting the translation and the rotation of the cylinder bottom body bush in the vertical direction;
the support frame 8 is used for supporting the cylinder barrel assembly 12, one side, far away from the L-shaped support, of the support frame 8 is provided with a welding machine tip cone 9, and the welding machine tip cone 9 can push the cylinder barrel assembly 12 to move towards the direction of the cylinder bottom 11, so that the cylinder bottom 11 is connected with the cylinder barrel assembly 12 in an inserting mode.
The first end 3A of the L-shaped support 3 is vertically arranged, a mounting hole for mounting the mandrel 2 is formed in the first end 3A, and the mandrel 2 penetrates through the mounting hole and is fixedly connected with the L-shaped support 3.
The bottom and the second end 3B of fixed axle 6 pass through second retaining member fixed connection, the second retaining member is bolt 5.
Specifically, the first locking member and the second locking member may be bolts 5, or locking members such as screws may be used. A through groove is formed in the gland, one end of the through groove is arranged at the center of the gland, and the other end of the through groove penetrates through the gland.
The outer diameter of the fixed shaft 6 is the same as the diameter of an inner hole of the cushion block 7.
The support frame 8 can adjust the height in the vertical direction so that the cylinder barrel assembly 12 coincides with the axis of the mandrel 2.
The support frame 8 includes two support bodies, every the gyro wheel is installed at the support body top, the gyro wheel is used for realizing the support of cylinder subassembly 12.
The welder tip cone 9 can extend into the end of the cylinder assembly 12 remote from the cylinder bottom 11 and push the cylinder assembly 12 in the direction of the cylinder bottom 11.
The welding machine tip cone 9 is connected with a linear driving component, and the linear driving component is used for driving the welding machine tip cone 9 to do reciprocating linear motion along the axis direction of the cylinder barrel.
The linear driving component is an air cylinder, a cylinder body of the air cylinder is fixedly connected with an external support, and the tail end of a piston rod of the air cylinder is fixedly connected with a welding machine tip cone 9.
The working principle is as follows: during use, according to the center height of a mounting hole of the first end 3A in the L-shaped support 3 and the outer diameter of the cylinder barrel assembly 12 to be welded, the proper height of the cushion block 7 is selected, the outer diameter of the second boss in the cushion block 7 is matched with the inner hole of the lining 10 of the cylinder bottom 11, the cushion block 7 is sleeved outside the fixed shaft 6 to be positioned and aligned, and the coaxiality of the center of the cylinder bottom 11 and the mandrel 2 is guaranteed. The bolts 5 are screwed to press the pressure plate 4, and the cylinder bottom 11 is completely fixed by the pressure plate 4 and the cushion block 7.
The height of the support frame 8 is adjusted according to the outer diameter of the cylinder barrel component 12 so as to support the cylinder barrel component 12 and ensure that the cylinder barrel component 12 is coaxial with the mandrel 2. The end face of one side of the cylinder barrel assembly 12, which is far away from the cylinder bottom 11, is provided with a chamfer, and the side face of the welding machine tip cone 9 is in contact with the chamfer; the welding machine tip cone 9 is pushed by the thrust of the cylinder, so that the matching position of the cylinder barrel assembly 12 and the cylinder bottom 11 is matched in place by form and position tolerance, the spigot of the cylinder bottom 11 is inserted into the inner hole of the cylinder barrel assembly 12, and the verticality of the inner hole of the lining 10 of the cylinder bottom 11 and the cylinder barrel assembly 12 is ensured.
Because the cooperation of the welding machine tip cone 9 and the cylinder barrel component 12 is the front end chamfer cooperation, the surface quality of the inner hole of the cylinder barrel component 12 is ensured, and the sealing effect of the oil cylinder is ensured.
When the welding is finished, the pressing plate 4 can be drawn out by loosening the bolts by 52mm, and the cylinder bottom 11 is flexibly and conveniently assembled and disassembled. Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (10)
1. A hydraulic cylinder bottom welding tool is characterized by comprising a chuck and a support frame, wherein a mandrel is clamped in the center of the chuck, the mandrel is fixedly connected with a first end of an L-shaped support, a second end of the L-shaped support is horizontally arranged, a cushion block is arranged on the upper surface of the second end and used for supporting a cylinder bottom lining sleeve to enable the cylinder bottom lining sleeve and the mandrel to be in the same horizontal height, and the outer circle surface of the cushion block can be attached to the inner side surface of an inner hole in the cylinder bottom lining sleeve to limit the displacement of the cylinder bottom lining sleeve in the horizontal direction;
a fixed shaft is arranged in an inner hole of the cushion block, the upper part of the fixed shaft is connected with the pressure plate through a first locking piece, the lower part of the fixed shaft is fixedly connected with the L-shaped bracket, the cylinder bottom lining is arranged between the pressure plate and the cushion block, and the pressure plate and the first locking piece are used for limiting the translation and the rotation of the cylinder bottom lining in the vertical direction;
the support frame is used for supporting the cylinder barrel assembly, one side, far away from the L-shaped support, of the support frame is provided with a welding machine tip cone, and the welding machine tip cone can push the cylinder barrel assembly to move towards the direction of the cylinder bottom, so that the cylinder bottom is connected with the cylinder barrel assembly in an inserting mode.
2. The hydraulic cylinder bottom welding tool of claim 1, wherein the chuck is a three-jaw chuck.
3. The hydraulic cylinder bottom welding tool of claim 2, wherein the first end of the L-shaped support is vertically arranged, a mounting hole for mounting a mandrel is formed in the first end, and the mandrel penetrates through the mounting hole and is fixedly connected with the L-shaped support.
4. The hydraulic cylinder bottom welding tool of claim 1, wherein the bottom end of the fixed shaft is fixedly connected with the second end of the fixed shaft through a second locking member, and the second locking member is a bolt.
5. The hydraulic cylinder bottom welding tool of claim 4, wherein the outer diameter of the fixed shaft is the same as the diameter of the inner hole of the cushion block.
6. The hydraulic cylinder bottom welding tool of claim 1, wherein the support frame is capable of adjusting the height in the vertical direction so that the cylinder barrel assembly coincides with the axis of the mandrel.
7. The hydraulic cylinder bottom welding tool of claim 6, wherein the support frame comprises two frame bodies, a roller is mounted at the top of each frame body, and the rollers are used for supporting the cylinder barrel assembly.
8. The hydraulic cylinder bottom welding tool of claim 1, wherein the welder tip cone can extend into an end of the cylinder assembly away from the cylinder bottom and push the cylinder assembly to move towards the cylinder bottom.
9. The hydraulic cylinder bottom welding tool of claim 8, wherein the welder top cone is connected with a linear driving component, and the linear driving component is used for driving the welder top cone to perform reciprocating linear motion along the axis direction of the cylinder barrel.
10. The hydraulic cylinder bottom welding tool of claim 9, wherein the linear driving component is a cylinder, a cylinder body of the cylinder is fixedly connected with an external support, and a tail end of a piston rod of the cylinder is fixedly connected with a welding machine tip cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920707665.4U CN210160661U (en) | 2019-05-16 | 2019-05-16 | Hydraulic cylinder bottom welding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920707665.4U CN210160661U (en) | 2019-05-16 | 2019-05-16 | Hydraulic cylinder bottom welding tool |
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| Publication Number | Publication Date |
|---|---|
| CN210160661U true CN210160661U (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920707665.4U Active CN210160661U (en) | 2019-05-16 | 2019-05-16 | Hydraulic cylinder bottom welding tool |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091513A (en) * | 2020-09-18 | 2020-12-18 | 徐州徐工液压件有限公司 | High-precision jacking type assembling and welding platform |
| CN116604259A (en) * | 2023-06-21 | 2023-08-18 | 湖北盛达动力科技有限公司 | Clamp system and automatic welding workstation |
| CN116748784A (en) * | 2023-08-22 | 2023-09-15 | 德州宇力液压有限公司 | Flange type hydraulic cylinder body welding device |
-
2019
- 2019-05-16 CN CN201920707665.4U patent/CN210160661U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091513A (en) * | 2020-09-18 | 2020-12-18 | 徐州徐工液压件有限公司 | High-precision jacking type assembling and welding platform |
| CN116604259A (en) * | 2023-06-21 | 2023-08-18 | 湖北盛达动力科技有限公司 | Clamp system and automatic welding workstation |
| CN116748784A (en) * | 2023-08-22 | 2023-09-15 | 德州宇力液压有限公司 | Flange type hydraulic cylinder body welding device |
| CN116748784B (en) * | 2023-08-22 | 2023-10-24 | 德州宇力液压有限公司 | Flange type hydraulic cylinder body welding device |
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