CN207723770U - The welding positioning tool of interior oil circuit type piston rod - Google Patents

The welding positioning tool of interior oil circuit type piston rod Download PDF

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Publication number
CN207723770U
CN207723770U CN201721908729.4U CN201721908729U CN207723770U CN 207723770 U CN207723770 U CN 207723770U CN 201721908729 U CN201721908729 U CN 201721908729U CN 207723770 U CN207723770 U CN 207723770U
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China
Prior art keywords
head
piston rod
oil circuit
circuit type
slot
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Active
Application number
CN201721908729.4U
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Chinese (zh)
Inventor
孙鸿钧
张景
徐龙
易新新
叶李军
鄢超
王鹏飞
穆浩
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BENGBU HYDRAULIC MACHINERY CO LTD
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BENGBU HYDRAULIC MACHINERY CO LTD
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Abstract

The utility model gives a kind of welding positioning tool of interior oil circuit type piston rod;Fixed seat and sealing ring, fixed seat upper surface are provided with the locating slot coordinated with piston club head, and ring set is in locating slot, and piston club head coordinates with fixed seat, and piston club head stretches into locating slot and sealing ring seals the hydraulic fluid port of head.The head of piston rod stretches into locating slot, the outer wall of head coordinates with sealing ring, and fixed seat realizes that the support and positioning to head, core pipe end are inserted into the oilhole of head, it completes to complete weld job in the junction of head and core pipe, internal oil passages is formed between the endoporus of core pipe and the oilhole of head.Welding positioning tool of oil circuit type piston rod has the beneficial effect that in this:It solves the problems, such as the auxiliary positioning between head and core pipe, simplifies the weld job of interior oil circuit type piston rod, improve working efficiency.

Description

The welding positioning tool of interior oil circuit type piston rod
Technical field
The utility model is related to a kind of positioning tool, more particularly to the head and core pipe of a kind of interior oil circuit type piston rod are welded The positioning tool used when operation.
Background technology
Interior oil circuit type piston rod design is special, complicated, and as shown in Fig. 1 to 2, interior oil circuit type piston rod is generally divided into: Head 11, core pipe 12, outer sleeve 13 and port connection 14,11 end face of head are provided with oilhole 11a, the side wall of head 11 be equipped with The hydraulic fluid port 11b that oilhole 11a is communicated, core pipe 12 are fixed with head 11, and the endoporus of core pipe 12 is communicated with the oilhole 11a of head 11, existing Have in technology and be connected through a screw thread between head 11 and core pipe 12, needs between head 11 and core pipe 12 that vehicle goes out screw thread respectively, Not only manufacturing procedure is cumbersome, but also leakproofness cannot be guaranteed.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of interior oil circuit type pistons simple in structure, facilitating welding The welding positioning tool of bar.
In order to solve the above technical problems, the utility model provides a kind of welding positioning tool of interior oil circuit type piston rod;
Fixed seat and sealing ring, fixed seat upper surface are provided with the locating slot coordinated with piston club head, and ring set exists In locating slot, piston club head coordinates with fixed seat, and piston club head stretches into locating slot and sealing ring seals the hydraulic fluid port of head.
After such structure, the head of piston rod stretches into locating slot, and outer wall and the sealing ring of head coordinate, fixed Seat realizes that the support and positioning to head, core pipe end are inserted into the oilhole of head, completes complete in the junction of head and core pipe At weld job, internal oil passages are formed between the endoporus of core pipe and the oilhole of head.
Welding positioning tool of oil circuit type piston rod has the beneficial effect that in this:The auxiliary solved between head and core pipe is fixed Position problem simplifies the weld job of interior oil circuit type piston rod, improves working efficiency.
For the clearer technology contents for understanding the utility model, the welding of oil circuit type piston rod in sheet is positioned below Tooling is referred to as this positioning tool.
The locating slot of this positioning tool is two-stage stepped groove, and locating slot is from top to bottom followed successively by first stage slot and second Stage slot, the diameter of first stage slot are more than the diameter of second stage slot, and ring set is in second stage slot;Using in this way Structure after, the structure of locating slot is specifically, convenient to coordinate with head.
The fixed seat side wall of this positioning tool is provided with the limit threaded hole communicated with first stage slot, caging bolt and limit Threaded hole coordinates, and the end of caging bolt is stretched into first stage slot;After such structure, the end of caging bolt It is resisted against on the outer wall of head, it is ensured that in weld job or pressure testing operation, the head in positioning seat will not be because of outer masterpiece It is winged with being hit.
Description of the drawings
Fig. 1 is the structural schematic diagram of interior oil circuit type piston rod in the prior art.
Fig. 2 is the structural schematic diagram of interior oil circuit type piston club head in the prior art.
Fig. 3 is the usage state diagram of this positioning tool embodiment.
Fig. 4 is the structural schematic diagram of this positioning tool embodiment.
Specific implementation mode
As shown in Figs. 3-4
This positioning tool includes fixed seat 2, caging bolt 4 and sealing ring 3.
2 generally cylindrical body shape of fixed seat, 2 upper surface of fixed seat are provided with the locating slot coordinated with piston club head 11, fixed Position slot is two-stage stepped groove, and locating slot is from top to bottom followed successively by first stage slot 21 and second stage slot 22, first stage slot 21 diameter is more than the diameter of second stage slot 22;
2 side wall of fixed seat is provided with the limit threaded hole (not shown) communicated with first stage slot 21, and sealing ring 3 is set with In second stage slot 22, the equivalent width of height and second stage slot 22 that sealing ring 3 is set with.
When the head 11 of interior oil circuit type piston rod is welded with core pipe 12, first the head of piston rod 11 is stretched into locating slot, The end of 11 closed side of head is resisted against positioning trench bottom, and outer wall and the sealing ring 3 of head 11 coordinate, and sealing ring 3 seals head 11 hydraulic fluid port 11b, caging bolt 4 and limit threaded hole cooperation, the end of caging bolt 4 stretches into first stage slot 21 and is resisted against bar On first 11 outer wall;11 end side of head is stretched out outside locating slot, and 12 end of core pipe is inserted into the oilhole 11a of head 11, complete Weld job is completed in the junction of head 11 and core pipe 12, is formed between the endoporus of core pipe 12 and the oilhole 11a of head 11 Internal oil passages form weld part P between core pipe 12 and head 11.
Using this positioning tool can also internal oil circuit type piston rod carry out pressure testing, it is specific as follows:
By after welding interior oil circuit type piston club head 11 and core pipe 12 and above-mentioned positioning tool coordinate, piston club head 11 It stretches into locating slot and sealing ring 3 seals the hydraulic fluid port 11b of head 11;
Again will after welding head 11 and core pipe 12 together with above-mentioned positioning tool into the water (after completing weld job, Directly into the water by head 11, the company of core pipe 12 and this positioning tool), welding position there is not upstream face between head 11 and core pipe 12 Hereinafter, making the end of core pipe 12 be connected to air source, by observing whether the weld part P between head 11 and core pipe 12 has bubble production It is raw, judge whether welding position seals with this.
Above-described is only a kind of embodiment of the utility model, it is noted that for the ordinary skill of this field For personnel, without departing from the principle of this utility model, several variations and modifications can also be made, these also should be regarded as Belong to the scope of protection of the utility model.

Claims (3)

1. a kind of welding positioning tool of interior oil circuit type piston rod, it is characterized in that:
Fixed seat and sealing ring, fixed seat upper surface are provided with the locating slot coordinated with piston club head, and ring set is positioning In slot, piston club head coordinates with fixed seat, and piston club head stretches into locating slot and sealing ring seals the hydraulic fluid port of head.
2. the welding positioning tool of interior oil circuit type piston rod according to claim 1, it is characterized in that:
The locating slot is two-stage stepped groove, and locating slot is from top to bottom followed successively by first stage slot and second stage slot, first The diameter of stage slot is more than the diameter of second stage slot, and ring set is in second stage slot.
3. the welding positioning tool of interior oil circuit type piston rod according to claim 2, it is characterized in that:
The fixed seat side wall is provided with the limit threaded hole communicated with first stage slot, caging bolt and limit threaded hole cooperation, And the end of caging bolt is stretched into first stage slot.
CN201721908729.4U 2017-12-30 2017-12-30 The welding positioning tool of interior oil circuit type piston rod Active CN207723770U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721908729.4U CN207723770U (en) 2017-12-30 2017-12-30 The welding positioning tool of interior oil circuit type piston rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721908729.4U CN207723770U (en) 2017-12-30 2017-12-30 The welding positioning tool of interior oil circuit type piston rod

Publications (1)

Publication Number Publication Date
CN207723770U true CN207723770U (en) 2018-08-14

Family

ID=63083694

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721908729.4U Active CN207723770U (en) 2017-12-30 2017-12-30 The welding positioning tool of interior oil circuit type piston rod

Country Status (1)

Country Link
CN (1) CN207723770U (en)

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