CN218311721U - Variable-diameter jacking device for cylinder bottom welding - Google Patents
Variable-diameter jacking device for cylinder bottom welding Download PDFInfo
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- CN218311721U CN218311721U CN202222229133.9U CN202222229133U CN218311721U CN 218311721 U CN218311721 U CN 218311721U CN 202222229133 U CN202222229133 U CN 202222229133U CN 218311721 U CN218311721 U CN 218311721U
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- cylinder bottom
- bottom welding
- centre bore
- welding
- jacking device
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Abstract
The utility model relates to a but be used for cylinder bottom welding reducing formula top tight device belongs to hydraulic cylinder technical field. Including top dish, installation axle and locating pin, the center of top dish be equipped with the centre bore, install the axle and pack into the centre bore of top dish, installation axle and centre bore adopt interference fit, top dish on be equipped with the screw hole, the locating pin is installed on the screw hole. The beneficial effects of the utility model are that: the coaxiality and the size requirements of the cylinder bottom and the cylinder barrel are realized in a mode of tightly pushing the two ends, the quality of a welding seam is ensured, and the function of rapid remodeling operation is realized. The form and position tolerances such as the matching dimensional precision, the coaxiality, the verticality and the like of the cylinder bottom in the welding process are ensured; the model changing operation can be easily realized, and each variable diameter jacking device can cover cylinder bottom welding operation of various specifications.
Description
Technical Field
The utility model relates to a but be used for cylinder bottom welding reducing formula top tight device belongs to hydraulic cylinder technical field.
Background
The hydraulic oil cylinder is an important component of a hydraulic system, can convert hydraulic energy into mechanical energy of linear reciprocating motion, and is widely applied to engineering mechanical systems. For a long time, the flat cylinder bottom on the hydraulic oil cylinder is subjected to top welding in the industry, but the cylinder bottom with different outer diameter specifications exists due to different types of the hydraulic oil cylinder.
At present, when the cylinder bottom is welded, a top welding device with different specifications is configured for each cylinder bottom with different external diameter specifications. In the welding process, every product is remodeled and the tight device in top that corresponds the specification just needs to be changed, and the supplementary process time that leads to welding process is longer, and is inefficient, and the tight device weight in top is great, and frequent remodelling intensity of labour is big, and there is the potential safety hazard in the welding operator remodelling process and the tight device in top easily wears out.
On the one hand, the existing jacking welding device needs frequent type changing, the auxiliary processing time is long, the efficiency is low, the labor intensity of a welding operator is high, and potential safety hazards exist in the type changing process. On the other hand, the existing welding device is used for positioning the cylinder bottom in the circumferential direction through the circumferential positioning table of the welding device, and the positioning table is prone to abrasion due to frequent replacement, so that the welding precision is influenced, and the service life of the existing positioning device is short.
Disclosure of Invention
In order to overcome the weak point of above-mentioned prior art, the utility model provides a but be used for cylinder end welding reducing formula top tight device for supplementary hydraulic cylinder's flat cylinder end welding realizes the cylinder end and the axiality and the dimensional requirement of cylinder, guarantees the welding seam quality through the tight mode in both ends top, and realizes the function of the operation of remodeling fast.
The utility model discloses a realize through following technical scheme: the utility model provides a but be used for cylinder bottom welding reducing formula top tight device which characterized in that: including top dish, installation axle and locating pin, the center of top dish be equipped with the centre bore, in the centre bore of installing the axle and packing into the top dish, installation axle and centre bore adopt interference fit, top dish on be equipped with the screw hole, the locating pin is installed on the screw hole.
The top dish along the different diameter positions of center to excircle be equipped with 3 screw holes of different diameter positions.
And four threaded holes are formed in each group of diameter positions of the top disc.
The thread sizes and specifications of the threaded holes in different diameter positions on the top disc are consistent.
One end of the positioning pin is provided with threads, the specification of the positioning pin is the same as that of the threaded hole, and the other end of the positioning pin pair is cylindrical with a chamfer.
The positioning pin is connected with the top disc through threads.
The utility model has the advantages that: the coaxiality and the size requirements of the cylinder bottom and the cylinder barrel are realized through a mode of tightly pushing the two ends, the quality of a welding seam is ensured, and the function of quick type changing operation is realized. The form and position tolerances such as the fit dimension precision, the coaxiality, the verticality and the like of the cylinder bottom in the welding process are ensured; the model changing operation can be easily realized, and each variable-diameter jacking device can cover cylinder bottom welding operation of various specifications.
Drawings
The invention will be further explained below with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 2.
In the figure: 1. a top tray; 2. installing a shaft; 3. positioning pins; 4. a central bore; 5. a threaded bore.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The variable diameter type jacking device for cylinder bottom welding shown in figures 1 to 3 is characterized in that: including top dish 1, installation axle 2 and locating pin 3, the center of top dish 1 be equipped with centre bore 4, install in axle 2 packs into the centre bore 4 of top dish 1, install axle 2 and centre bore 4 and adopt interference fit, can guarantee to install the axiality requirement of axle 2 and top dish 1, install axle 2 afterwards and carry out final fixed through the welding mode with top dish 1, guarantee to connect reliably. The top disc 1 is provided with a threaded hole 5, and the positioning pin 3 is installed on the threaded hole 5.
The top disc 1 is provided with 3 groups of threaded holes 5 with different diameter positions from the center to the positions with different diameters of the excircle.
And four threaded holes are formed in each group of diameter positions of the top disc 1.
The thread sizes and specifications of the threaded holes 5 at different diameter positions on the top disc 1 are consistent.
One end of the positioning pin 3 is provided with threads, the specification of the positioning pin is the same as that of the threaded hole 5, and the other end of the positioning pin 3 pair is cylindrical with a chamfer. The positioning pin 3 is connected with the top disc 1 through threads. Four positioning pins 3 need to be installed when the jacking device is used every time, and the positioning pins 3 are installed by selecting four threaded holes 5 with different diameter positions according to different outer diameters of the welded cylinder bottom. The cylinder bottom to be welded is positioned by the excircle and the four positioning pins 3, so as to fix the cylinder bottom. In the use process, the form and position tolerance of the cylinder bottom is ensured by the radial positioning of the outer circle of the cylinder bottom by the positioning pin 3 and the axial jacking of the welding machine.
The device is connected with cylinder bottom welding equipment in a pin shaft connection mode, so that the quick replacement of the jacking device is realized;
according to a six-point positioning principle, the bottom end face of the cylinder is tightly jacked by the jacking disc 1 to realize axial positioning, and the outer circle of the cylinder bottom is fixed by the four positioning pins 3 to realize radial positioning of the cylinder bottom. By the reliable positioning mode, the matching dimensional precision, the coaxiality, the verticality and other form and position tolerances of the cylinder bottom in the welding process are ensured;
when the type changing operation is performed, the diameter position of the positioning pin 3 is changed by changing the matching threaded holes in different diameter positions, the type changing operation can be easily performed, and each type of reducing jacking device can cover cylinder bottom welding operations of various specifications.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a but be used for cylinder bottom welding reducing formula top tight device which characterized in that: including top dish (1), installation axle (2) and locating pin (3), the center of top dish (1) be equipped with centre bore (4), install axle (2) and pack into in centre bore (4) of top dish (1), install axle (2) and centre bore (4) and adopt interference fit, top dish (1) on be equipped with screw hole (5), locating pin (3) are installed on screw hole (5).
2. The variable diameter type jacking device for cylinder bottom welding according to claim 1, wherein: the top disc (1) is provided with 3 groups of threaded holes (5) with different diameter positions from the center to the positions with different diameters of the excircle.
3. The variable diameter type jacking device for cylinder bottom welding according to claim 2, wherein: and four threaded holes are formed in each group of diameter positions of the top disc (1).
4. The variable diameter type jacking device for cylinder bottom welding according to claim 2, wherein: the thread sizes and specifications of the threaded holes (5) in different diameter positions on the top disc (1) are consistent.
5. The variable diameter type jacking device for cylinder bottom welding according to claim 1, wherein: one end of the positioning pin (3) is provided with a thread, the thread is the same as the threaded hole (5), and the other end of the positioning pin (3) pair is cylindrical with a chamfer.
6. The variable diameter type jacking device for cylinder bottom welding according to claim 1, wherein: the positioning pin (3) is connected with the top disc (1) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222229133.9U CN218311721U (en) | 2022-08-24 | 2022-08-24 | Variable-diameter jacking device for cylinder bottom welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222229133.9U CN218311721U (en) | 2022-08-24 | 2022-08-24 | Variable-diameter jacking device for cylinder bottom welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218311721U true CN218311721U (en) | 2023-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222229133.9U Active CN218311721U (en) | 2022-08-24 | 2022-08-24 | Variable-diameter jacking device for cylinder bottom welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218311721U (en) |
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2022
- 2022-08-24 CN CN202222229133.9U patent/CN218311721U/en active Active
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