CN216829760U

CN216829760U - Milling variable piston tool

Info

Publication number: CN216829760U
Application number: CN202220204312.4U
Authority: CN
Inventors: 粟武洪; 游先旭
Original assignee: Shaoyang Victor Hydraulics Co ltd
Current assignee: Shaoyang Victor Hydraulics Co ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-06-28
Anticipated expiration: 2032-01-25

Abstract

The utility model discloses a mill frock of variable piston, it includes the die holder, install first anchor clamps, second anchor clamps and third anchor clamps on the die holder, first anchor clamps include two V type locating pieces, and the both sides of die holder are located respectively to two V type locating pieces, the up end of V type locating piece is opened there is the V-arrangement groove, the top in V-arrangement groove is equipped with the clamp plate, be equipped with fastening component on the clamp plate, one side of die holder is equipped with the locating pin, the locating pin is located the one end that another V type locating piece was kept away from to a V type locating piece. Compared with the prior art, the utility model discloses in, accomplish the processing of first processing hole, second processing hole and the first plane of variable piston through setting up first anchor clamps. The third machining hole of the variable piston and the machining of the second plane are completed through the second clamp and the third clamp, the three processes share one die holder, all machining processes of the variable piston can be completed through machining once, the structural design simplifies the processes, and machining efficiency is improved.

Description

Milling variable piston tool

Technical Field

The utility model belongs to the technical field of the work piece processing technique and specifically relates to a mill frock of variable piston is related to.

Background

The variable piston is an important part in the plunger pump, the variable piston of the variable pump is a cylinder, a plurality of holes are drilled in the surface of the piston cylinder according to design requirements, the outer wall of the piston cylinder is required to be milled flat, the variable piston in the prior art can be machined between a lathe and a milling machine for many times, and the process is complex and consumes long time.

SUMMERY OF THE UTILITY MODEL

The utility model provides a mill frock of variable piston, a die holder of three anchor clamps sharing has simplified manufacturing procedure, has improved machining efficiency.

The utility model provides a mill frock of variable piston, including the die holder, install first anchor clamps, second anchor clamps and third anchor clamps on the die holder, first anchor clamps include two V type locating pieces, and the both sides of die holder are located respectively to two V type locating pieces, open the up end of V type locating piece has the V-arrangement groove, the top in V-arrangement groove is equipped with the clamp plate, be equipped with fastening component on the clamp plate, one side of die holder is equipped with the locating pin, the locating pin is located one V type locating piece and keeps away from the one end of another V type locating piece.

Preferably, the second jig includes: two V type locating piece, bolt and two the clamp plate, the bolt is located between two V type locating pieces.

Preferably, the third jig includes: the V-shaped positioning blocks, the pressing block and the positioning pin are arranged, the pressing block is located between the two V-shaped positioning blocks, and the fastening assembly is arranged on the pressing block.

Preferably, the fastening assembly comprises a guide rod and a locking nut, the pressing plate and the pressing block move up and down along the guide rod, the locking nut is in threaded connection with the guide rod, and the guide rod is fixedly connected with the die holder.

Preferably, the upper end face of the V-shaped positioning block is provided with a V-shaped groove, and the bottom of the V-shaped groove is provided with an avoiding groove communicated with the V-shaped groove.

Preferably, the V-shaped positioning block is provided with a pin hole and a threaded hole, and the pin hole and the threaded hole both extend into the die holder.

Preferably, the number of the pin holes and the number of the threaded holes are two, and a plane where the two pin holes are located intersects a plane where the two threaded holes are located.

Preferably, the lower end of the bolt is provided with a positioning cylinder, and the die holder is provided with a positioning hole matched with the positioning cylinder.

Preferably, the width of the pressing block is larger than that of the pressing plate, and two ends of the pressing block are respectively provided with an edge groove.

Preferably, the V-shaped positioning blocks are divided into two groups, the number of the V-shaped positioning blocks in each group of V-shaped positioning blocks is two, two ends of the pressing plate are respectively arranged above the two groups of V-shaped positioning blocks, and two ends of the pressing block are respectively arranged above the two groups of V-shaped positioning blocks.

Compared with the prior art, the utility model discloses in, accomplish the processing of first processing hole, second processing hole and the first plane of variable piston through setting up first anchor clamps. The third processing hole and the second plane of the variable piston are processed by the second clamp and the third clamp, the three processes share one die holder, the first processing hole, the second processing hole, the first plane third processing hole and the second plane of the variable piston can be processed by one-time processing, the variable piston in the clamp is disassembled and installed, and then the first processing hole, the second processing hole, the first plane third processing hole and the second plane of the variable piston can be processed.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a top view of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural view of the V-shaped block of the present invention;

FIG. 4 is a schematic cross-sectional view of a variable displacement piston according to the present invention;

fig. 5 is a schematic cross-sectional view taken along line B-B in fig. 4.

Reference numerals:

1. the variable piston positioning device comprises a die holder, 2, a first clamp, 3, a second clamp, 4, a third clamp, 21, a V-shaped positioning block, 22, a pressing plate, 23, a fastening assembly, 24, a positioning pin, 231, a guide rod, 232, a locking nut, 211, a V-shaped groove, 212, an avoiding groove, 213, a pin hole, 214, a threaded hole, 31, a bolt, 311, a positioning cylinder, 41, a pressing block, 411, an edge groove, 5, a variable piston, 51, a first machining hole, 52, a second machining hole, 53, a third machining hole, 54, a first plane and 55 a second plane.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are 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 belong to the protection scope of the present invention.

Referring to the accompanying drawings 1-2, the utility model provides a mill frock of variable piston, including die holder 1, install first anchor clamps 2 on the die holder 1, second anchor clamps 3 and third anchor clamps 4, first anchor clamps 2 include two V type locating pieces 21, the both sides of die holder 1 are located respectively to two V type locating pieces 21, V type locating piece 21's up end is opened there is V-arrangement groove 211, the top of V-arrangement groove 211 is equipped with clamp plate 22, be equipped with fastening component 23 on the clamp plate 22, one side of die holder 1 is equipped with locating pin 24, locating pin 24 is located one V type locating piece 21 and keeps away from the one end of another V type locating piece 21. The variable piston 5 is placed in the V-shaped groove 211 with one end of the variable piston 5 aligned with the positioning pin 24, the variable piston 5 is pressed by the pressing plate 22, and the variable piston 5 is fixed in the V-shaped groove 211 by the fastening assembly 23, at which time, the variable piston 5 is machined, referring to fig. 4, to obtain the first machined hole 51, the second machined hole 52, and the first plane 54.

The second jig 3 includes: two V type locating pieces 21, bolt 31 and two clamp plates 22, bolt 31 locates between two V type locating pieces 21. The processed variable piston 5 in the first fixture 2 is placed in the V-shaped groove 211 in the second fixture 3, the plug pin 31 is inserted into the first processing hole 51 of the variable piston 5 for positioning, and then the variable piston 5 is fixed in the V-shaped groove 211 by the pressing plate 22, at this time, the variable piston 5 is processed, and referring to fig. 5, a third processing hole 53 is obtained.

The third jig 4 includes: the variable piston device comprises two V-shaped positioning blocks 21, a pressing block 41 and a positioning pin 24, wherein the pressing block 41 is positioned between the two V-shaped positioning blocks 21, the pressing block 41 presses a first plane 54 of the variable piston 5 so as to conveniently mill two ends of the variable piston 5 to obtain a second plane 55, and a fastening assembly 23 is arranged on the pressing block 41. The processed variable piston 5 in the second fixture 3 is placed in the V-shaped groove 211 in the third fixture 4, one end of the variable piston 5 is aligned with the positioning pin 24, then the pressing plate 22 presses the first plane 54, the variable piston 5 is fixed in the V-shaped groove 211 by the fastening assembly 23, and at this time, the variable piston 5 is processed to obtain the second plane 55.

The fastening assembly 23 comprises a guide rod 231 and a locking nut 232, the press plate 22 and the press block 41 move up and down along the guide rod 231, the locking nut 232 is in threaded connection with the guide rod 231, and the guide rod 231 is fixedly connected with the die holder 1.

Referring to fig. 3, the groove bottom of the V-shaped groove 211 is formed with an escape groove 212 communicating with the V-shaped groove 211 to ensure that both sides of the variable piston 5 are in contact with the V-shaped groove 211.

The V-shaped positioning block 21 is provided with a pin hole 213 and a threaded hole 214, the pin hole 213 and the threaded hole 214 both extend into the die holder 1, a pin rod is inserted into the pin hole 213 for positioning, and a screw rod is inserted into the threaded hole 214 for fixing.

The number of the pin holes 213 and the number of the screw holes 214 are two, and a plane where the two pin holes 213 are located intersects a plane where the two screw holes 214 are located.

The lower end of the bolt 31 is provided with a positioning cylinder 311, the upper end of the bolt 31 is inserted into the first processing hole 51 of the variable piston 5 to play a positioning role, and the die holder 1 is provided with a positioning hole matched with the positioning cylinder 311.

The width of the pressing block 41 is larger than that of the pressing plate 22, and both ends of the pressing block 41 are respectively provided with side grooves 411.

The V-shaped positioning blocks 21 are divided into two groups, the number of the V-shaped positioning blocks 21 in each group of V-shaped positioning blocks is two, two ends of the pressing plate 22 are respectively arranged above the two groups of V-shaped positioning blocks, and two ends of the pressing block 41 are respectively arranged above the two groups of V-shaped positioning blocks. This setting makes first anchor clamps 2, second anchor clamps 3 and third anchor clamps 4 can both fix two variable piston 5 simultaneously, has improved variable piston 5's machining efficiency.

Specifically, the lower end surface of the die holder 1 is provided with a plurality of weight reduction grooves, the press plate 22 is provided with a through hole matched with the guide rod 231, and the press plate 22 extends to two sides at the through hole and is provided with a reinforcing edge.

The utility model discloses in, accomplish the processing of first processing hole 51, second processing hole 52 and the first plane 54 of variable piston 5 through setting up first anchor clamps 2. The second clamp 3 and the third clamp 4 are arranged to complete the machining of the third machining hole 53 and the second plane 55 of the variable piston 5, the three processes share one die holder 1, the machining of the first machining hole 51, the second machining hole 52, the first plane 54, the third machining hole 53 and the second plane 55 of the variable piston 5 can be completed by one-time machining, the variable piston 5 in the clamps can be disassembled and installed, and then the machining of the first machining hole 51, the second machining hole 52, the first plane 54, the third machining hole 53 and the second plane 55 of the variable piston 5 can be completed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a mill frock of variable piston, its characterized in that, includes the die holder, install first anchor clamps, second anchor clamps and third anchor clamps on the die holder, first anchor clamps include two V type locating pieces, and the both sides of die holder are located respectively to two V type locating pieces, the up end of V type locating piece is opened there is the V-arrangement groove, the top in V-arrangement groove is equipped with the clamp plate, be equipped with fastening components on the clamp plate, one side of die holder is equipped with the locating pin, the locating pin is located one V type locating piece and keeps away from the one end of another V type locating piece.

2. The tooling for milling a variable piston of claim 1, wherein the second clamp comprises: two V type locating piece, bolt and two the clamp plate, the bolt is located between two V type locating pieces.

3. The tooling for milling a variable piston of claim 1, wherein the third clamp comprises: the V-shaped positioning blocks, the pressing block and the positioning pin are arranged, the pressing block is located between the two V-shaped positioning blocks, and the fastening assembly is arranged on the pressing block.

4. The tooling for milling the variable piston according to claim 3, wherein the fastening assembly comprises a guide rod and a locking nut, the pressing plate and the pressing block move up and down along the guide rod, the locking nut is in threaded connection with the guide rod, and the guide rod is fixedly connected with the die holder.

5. The tooling for milling the variable piston according to claim 1, wherein a V-shaped groove is formed in the upper end face of the V-shaped positioning block, and an avoiding groove communicated with the V-shaped groove is formed in the bottom of the V-shaped groove.

6. The tooling for milling the variable piston according to claim 5, wherein the V-shaped positioning block is provided with a pin hole and a threaded hole, and the pin hole and the threaded hole both extend into the die holder.

7. The tooling for milling the variable piston according to claim 6, wherein the number of the pin holes and the number of the threaded holes are two, and the plane where the two pin holes are located and the plane where the two threaded holes are located are intersected.

8. The tooling for milling the variable piston according to claim 2, wherein a positioning cylinder is arranged at the lower end of the plug pin, and the die holder is provided with a positioning hole matched with the positioning cylinder.

9. The tooling for milling the variable piston according to claim 3, wherein the width of the pressing block is larger than that of the pressing plate, and two ends of the pressing block are respectively provided with an edge groove.

10. The tooling for milling the variable piston according to claim 3, wherein the V-shaped positioning blocks are divided into two groups, the number of the V-shaped positioning blocks in each group of the V-shaped positioning blocks is two, two ends of the pressing plate are respectively arranged above the two groups of the V-shaped positioning blocks, and two ends of the pressing block are respectively arranged above the two groups of the V-shaped positioning blocks.