CN210909119U

CN210909119U - Multifunctional hydraulic clamp

Info

Publication number: CN210909119U
Application number: CN201921540904.8U
Authority: CN
Inventors: 李军灿
Original assignee: Hubei Sanjiang Space Wanshan Special Vehicle Co Ltd
Current assignee: Hubei Sanjiang Space Wanshan Special Vehicle Co Ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-07-03
Anticipated expiration: 2029-09-17

Abstract

The utility model discloses a multifunctional hydraulic fixture, including piston, base, holding ring, location axle and a plurality of two-way corner hydro-cylinders, the base is equipped with the shoulder hole that uses with the piston cooperation along its axis direction, holding ring and location axle are fixed on the up end of base, and with the coaxial setting of base, be equipped with first hydraulic circuit and the second hydraulic circuit with the inside intercommunication of holding ring and location axle in the base respectively, first hydraulic circuit and second hydraulic circuit all are full of hydraulic oil and separate through the piston, the cylinder body of two-way corner hydro-cylinder is fixed in the location axle, its first hydraulic fluid port and second hydraulic fluid port communicate with first hydraulic circuit and second hydraulic circuit respectively, the base still is equipped with the end cap that communicates with first hydraulic circuit and second hydraulic circuit on the location axle respectively. The fixture is accurate in positioning and convenient to clamp, and can finish the processing of the whole size of the outer support of the planetary gear through one-time turnover and two-time clamping.

Description

Multifunctional hydraulic clamp

Technical Field

The utility model relates to a positioner among the machining, especially a multi-functional hydraulically operated fixture.

Background

The planet gear support is an important part of a wheel-side reducer, the tolerance requirements of the positioning straight opening of the planet gear, the sun gear and the wheel carrier on the dimensional accuracy, the position degree, the verticality and the like are high and high, and in addition, the workpiece material is cast aluminum, and the clamping and the thermal deformation are sensitive, which have certain influence on the processing accuracy.

Under the normal condition, in order to ensure the dimensional coaxiality and form and position tolerance of the large end face and the small end face, the middle large hole of the small end is usually selected as a technological reference for positioning, then a plurality of sets of tools are manufactured, and after a plurality of procedures of turning, boring, turning, secondary clamping, aligning, boring, milling and the like, the processing of all key dimensions can be completed by a plurality of devices.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a multifunctional hydraulic clamp, this anchor clamps location is accurate, the clamping is convenient, just can accomplish the processing of the whole sizes of planetary gear outer support through turn-over, twice clamping, reduces clamping, the turnover in the part machining process, shortens production flow, improves production efficiency greatly.

The utility model provides a multifunctional hydraulic fixture, includes piston, base, holding ring, location axle and a plurality of two-way corner hydro-cylinders, the base is equipped with the shoulder hole that uses with the piston cooperation along its axis direction, holding ring and location axle are fixed on the up end of base, and with the coaxial setting of base, be equipped with respectively in the base with the inside first hydraulic circuit and the second hydraulic circuit of intercommunication of holding ring and location axle, first hydraulic circuit and second hydraulic circuit all are full of hydraulic oil and separate through the piston, the cylinder body of two-way corner hydro-cylinder is fixed in the location axle, its first hydraulic fluid port and second hydraulic fluid port respectively with first hydraulic circuit and second hydraulic circuit intercommunication, the epaxial end cap that still is equipped with respectively with first hydraulic circuit and second hydraulic circuit intercommunication of base and location.

Preferably as above-mentioned scheme, the holding ring is hollow ladder axle, including path axle and major diameter axle, be equipped with first annular groove on the lateral wall of path axle, first annular groove and first hydraulic circuit intercommunication, the cover is equipped with positioning sleeve on the lateral wall of path axle, positioning sleeve seals first annular groove, positioning sleeve's lateral wall and the terminal surface of the major diameter axle adjacent with it form first location reference surface jointly.

Preferably as above-mentioned scheme, the last edge of path axle is equipped with the chamfer No. one, and the juncture of path axle and path axle is equipped with circular recess, the terminal surface of path axle is equipped with the chamfer No. two with circular recess's juncture, the location muffjoint is established on the path axle and is stretched into circular recess in, through chamfer and No. two chamfers respectively with path axle and path axle welded fastening.

Preferably, the positioning shaft is arranged in a hollow shaft of the positioning ring, the positioning shaft is also a stepped shaft and is divided into a first shaft section, a second shaft section and a third shaft section from top to bottom, the diameter of the second shaft section is larger than that of the first shaft section and that of the third shaft section, a first oil passage hole communicated with a first oil port of the two-way corner oil cylinder is formed in a plane of the second shaft section perpendicular to the axis of the positioning shaft, a second oil passage hole communicated with a second oil port of the two-way corner oil cylinder is formed in the third shaft section in parallel to the axis of the positioning shaft, and a second positioning reference plane is formed by the side wall of the first shaft section and the end face of the second shaft section adjacent to the side wall of the first shaft section.

Preferably, an oil path block is fixedly mounted on the upper end surface of the base, and the plurality of first oil path holes are connected with the oil path block through oil pipes.

Preferably, the two-way corner oil cylinders are provided with three groups and are uniformly arranged along the axis of the positioning shaft.

Preferably, a plurality of first sealing rings and a plurality of second sealing rings are arranged between the piston body of the piston, the piston rod and the base respectively, a third sealing ring is arranged between the positioning shaft and the base, and a fourth sealing ring is arranged between the positioning ring and the base and surrounds the first hydraulic loop.

Preferably, a reinforcing rib is further fixed between the oil path block and the base.

Preferably, the piston rod of the piston is provided with a threaded hole along the axial direction of the piston.

The beneficial effects of the utility model reside in that:

this anchor clamps fuse an organic whole with positive, anti-two clamping positioning fixture, and compact structure once turns over, twice clamping can accomplish the processing of all sizes of planetary gear support, has greatly promoted production efficiency under the prerequisite of guaranteeing part machining quality, especially adopts the thin wall elastic sleeve that hydraulic pressure rises and tightly, not only unifies the location of part, the clamping face, has reduced systematic error, and the loading and unloading part is swift moreover, can maximize the multiaspect processing of realization part.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a sectional view taken along line a-a of the present invention.

Fig. 4 is a schematic view of the positioning ring structure of the present invention.

Fig. 5 is a schematic view of the positioning shaft structure of the present invention.

Fig. 6 is a schematic view of the installation structure of the planetary gear bracket of the present invention when the concave surface detail structure of the planetary gear bracket is processed.

Fig. 7 is a schematic view of the installation structure of the planetary gear bracket of the present invention when the convex surface detail structure of the planetary gear bracket is processed.

The reference numbers are as follows: 1-piston, 101-piston body, 102-piston rod, 2-base, 201-stepped hole, 3-positioning ring, 301-small diameter shaft, 302-large diameter shaft, 303-first annular groove, 304-first chamfer, 305-circular groove, 306-second chamfer, 4-positioning shaft, 401-first shaft section, 402-second shaft section, 403-third shaft section, 404-first oil way hole, 405-second oil way hole, 5-bidirectional corner oil cylinder, 501-cylinder body, 502-first oil port, 503-second oil port, 504-pressing plate, 6-first hydraulic circuit, 7-second hydraulic circuit, 8-plug, 9-positioning sleeve, 10-first positioning reference surface, 11-second positioning reference surface, 12-oil path block, 13-oil pipe, 14-sealing ring I, 15-sealing ring II, 16-sealing ring III, 17-sealing ring IV, 18-reinforcing rib and 19-threaded hole.

Detailed Description

The present embodiment is described in detail below with reference to the accompanying drawings.

A multifunctional hydraulic clamp comprises a piston 1, a base 2, a positioning ring 3, a positioning shaft 4 and a plurality of bidirectional corner oil cylinders 5, the base 2 is provided with a stepped hole 201 matched with the piston 1 along the axial direction, the positioning ring 3 and the positioning shaft 4 are fixed on the upper end surface of the base 2, and is arranged coaxially with the base 2, a first hydraulic circuit 6 and a second hydraulic circuit 7 which are communicated with the positioning ring 3 and the positioning shaft 4 are respectively arranged in the base 2, the first hydraulic circuit 6 and the second hydraulic circuit 7 are filled with hydraulic oil and separated by a piston 1, a cylinder body 501 of the bidirectional corner oil cylinder 5 is fixed in the positioning shaft, a first oil port 502 and a second oil port 503 of the hydraulic pump are respectively communicated with the first hydraulic circuit 6 and the second hydraulic circuit 7, and plugs 8 communicated with the first hydraulic circuit 6 and the second hydraulic circuit 7 are respectively arranged on the base 2 and the positioning shaft 4.

In this embodiment, the holding ring 3 is hollow stepped shaft, including minor axis 301 and major axis 302, be equipped with first annular groove 303 on the lateral wall of minor axis 301, first annular groove 303 and first hydraulic circuit 6 intercommunication, the cover is equipped with positioning sleeve 9 on the lateral wall of minor axis 301, positioning sleeve 9 seals first annular groove 303, positioning sleeve 9's the lateral wall and the terminal surface of the major axis 302 adjacent to it form first positioning reference surface 10 jointly.

In this embodiment, the upper edge of the small-diameter shaft 301 is provided with a first chamfer 304, the junction between the large-diameter shaft 302 and the small-diameter shaft 301 is provided with a circular groove 305, the junction between the end surface of the large-diameter shaft 302 and the circular groove 305 is provided with a second chamfer 306, the positioning sleeve 9 is sleeved on the small-diameter shaft 301 and extends into the circular groove 305, and the small-diameter shaft 301 and the large-diameter shaft 302 are welded and fixed through the first chamfer 304 and the second chamfer 306 respectively.

In this embodiment, the positioning shaft 4 is disposed in a hollow shaft of the positioning ring 3, the positioning shaft 4 is also a stepped shaft and is divided into a first shaft segment 401, a second shaft segment 402 and a third shaft segment 403 from top to bottom, the diameter of the second shaft segment 402 is greater than that of the first shaft segment 401 and the third shaft segment 403, a first oil passage hole 404 communicated with a first oil port 502 of the bidirectional corner oil cylinder 5 is disposed on a plane of the second shaft segment 402 perpendicular to the axis of the positioning shaft 4, a second oil passage hole 405 communicated with a second oil port 503 of the bidirectional corner oil cylinder 5 is disposed in the third shaft segment 403 parallel to the axis of the positioning shaft 4, and a side wall of the first shaft segment 401 and an end surface of the second shaft segment 402 adjacent to the side wall form a second positioning reference surface 11 together.

In this embodiment, one oil path block 12 is fixedly mounted on the upper end surface of the base 2, and the plurality of first oil path holes 404 are connected to the oil path block 12 through oil pipes 13.

In this embodiment, there are three sets of two-way corner cylinders 5, which are uniformly arranged along the axis of the positioning shaft 4. The stability of the planetary gear bracket clamped by the bidirectional corner oil cylinder 5 is improved by three-point support.

In this embodiment, a plurality of first seal rings 14 and a plurality of second seal rings 15 are respectively disposed between the piston body 101 and the base 2 of the piston 1, between the piston rod 102 and the base 2, a third seal ring 16 is disposed between the positioning shaft 4 and the base 2, and a fourth seal ring 17 is disposed between the positioning ring 3 and the base 2 around the first hydraulic circuit 6, so that the seal rings enhance the sealing performance between the components and prevent leakage of hydraulic oil.

In this embodiment, a reinforcing rib 18 is further fixed between the oil circuit block 12 and the base 2, so that the stability of connection between the oil circuit block 12 and the base 2 is effectively enhanced.

In the present embodiment, the piston rod 102 of the piston 1 is provided with a threaded hole 19 along the axial direction of the piston 1 for connecting an external power source.

The working principle of the embodiment is as follows:

first, the hydraulic clamp is connected to an external power source through a piston rod 102.

In order to better reflect the positions of the two-way corner oil cylinders 5 in different use states, in fig. 2, the two-way corner oil cylinder 5 on the left side is in a working state after the piston rod of the two-way corner oil cylinder 5 moves downwards, and at this time, the axes of the pressing plates 504 of the three two-way corner oil cylinders 5 are all perpendicular to the axis of the positioning shaft 4; the two-way corner cylinders 5 on the right are in a working state after the piston rods of the two-way corner cylinders 5 move upwards, and at this time, the pressing plates 504 of the three two-way corner cylinders 5 rotate counterclockwise. The rotation included angle of the pressing plate 504 of the two-way corner oil cylinder 5 after the piston rod moves upwards or downwards is 90 degrees, the pressing plate 504 is driven to rotate clockwise by 90 degrees when the piston rod of the two-way corner oil cylinder 5 moves downwards, and the pressing plate is driven to rotate anticlockwise by 90 degrees when the piston rod of the two-way corner oil cylinder 5 moves upwards.

When the concave surface detail structure of the planetary gear support is processed, an external power source is started, the external power source extrudes the piston 1, the second hydraulic circuit 7 starts to act, the second oil port 503 of the bidirectional corner oil cylinder 5 is filled with oil, the piston rod of the bidirectional corner oil cylinder 5 moves upwards and drives the pressing plate 504 to rotate 90 degrees anticlockwise, at the moment, the concave surface of the planetary gear support is placed upwards coaxially with the positioning shaft 4, and the step surface inside the center of the planetary gear support is positioned through the second positioning reference surface 11. After the planetary gear support is well positioned, an external power source stretches the piston 1, the first hydraulic circuit 6 starts to act, the first oil port 502 of the bidirectional corner oil cylinder 5 is filled with oil, the piston rod of the bidirectional corner oil cylinder 5 moves downwards and drives the pressing plate 504 to rotate 90 degrees clockwise, at the moment, the planetary gear support is clamped, the numerical control machine can start to process the concave surface detailed structure of the planetary gear support, and in the process, the positioning sleeve 9 is in a tensioning state, but does not play any role at the moment, so detailed description is omitted.

After the concave detail structure of the planetary gear support is processed, the planetary gear support is turned over, the external power source extrudes the piston 1, at the moment, the second oil port 503 of the bidirectional corner oil cylinder 5 is filled with oil, the piston rod of the bidirectional corner oil cylinder 5 moves upwards, and the pressing plate 504 is driven to rotate 90 degrees anticlockwise, so that the planetary gear support can be taken out.

When the convex detail structure of the planetary gear support is processed, the concave surface of the planetary gear support faces downwards and is coaxially arranged with the positioning shaft 4, the outer edge of the planetary gear support is positioned through the first positioning datum plane 10, after the planetary gear support is placed, the external power source extrudes the piston 1, the first hydraulic circuit 6 starts to act, at the moment, the positioning sleeve 9 is extruded by hydraulic oil, the planetary gear support is tensioned and fixed, the numerical control machine can start to process the convex detail structure of the planetary gear support, in the process, the first oil port 502 of the bidirectional corner oil cylinder 5 is filled with oil, the pressing plate 504 is in a pressing state, at the moment, the movement of the bidirectional corner oil cylinder 5 does not play any role, and therefore detailed description is not carried out.

In the embodiment, the bidirectional corner oil cylinder is the prior art, and the adopted model is AMF-6952E.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a multi-functional hydraulically operated fixture which characterized in that: including piston, base, holding ring, location axle and a plurality of two-way corner hydro-cylinders, the base is equipped with the shoulder hole that uses with the piston cooperation along its axis direction, holding ring and location axle are fixed on the up end of base, and with the coaxial setting of base, be equipped with respectively in the base with the inside first hydraulic circuit and the second hydraulic circuit of intercommunication of holding ring and location axle, first hydraulic circuit and second hydraulic circuit all are full of hydraulic oil and separate through the piston, the cylinder body of two-way corner hydro-cylinder is fixed in the location axle, its first hydraulic fluid port and second hydraulic fluid port communicate with first hydraulic circuit and second hydraulic circuit respectively, base and the epaxial end cap that still is equipped with respectively with first hydraulic circuit and second hydraulic circuit intercommunication in location.

2. A multi-function hydraulic clamp as claimed in claim 1, wherein: the holding ring is hollow stepped shaft, including path axle and big footpath axle, be equipped with first annular groove on the lateral wall of path axle, first annular groove and first hydraulic circuit intercommunication, the cover is equipped with positioning sleeve on the lateral wall of path axle, positioning sleeve seals first annular groove, positioning sleeve's lateral wall and the terminal surface of the big footpath axle adjacent with it form first location reference surface jointly.

3. A multi-function hydraulic clamp as claimed in claim 2, wherein: the last edge of path axle is equipped with the chamfer No. one, and the juncture of path axle and path axle is equipped with circular recess, the terminal surface of path axle is equipped with the chamfer No. two with circular recess's juncture, the position sleeve cover is established in the path is epaxial and stretches into circular recess, through chamfer and No. two chamfers respectively with path axle and path axle welded fastening.

4. A multi-function hydraulic clamp as claimed in claim 1, wherein: the locating shaft is arranged in a hollow shaft of the locating ring, the locating shaft is also a stepped shaft and is divided into a first shaft section, a second shaft section and a third shaft section from top to bottom, the diameter of the second shaft section is larger than that of the first shaft section and that of the third shaft section, a first oil way hole communicated with a first oil port of the bidirectional corner oil cylinder is formed in a plane of the second shaft section perpendicular to the axis of the locating shaft, a second oil way hole communicated with a second oil port of the bidirectional corner oil cylinder is formed in the third shaft section in a manner of being parallel to the axis of the locating shaft, and a second locating datum plane is formed by the side wall of the first shaft section and the end face of the second shaft section adjacent to the side wall of the first.

5. The multi-function hydraulic clamp of claim 4, wherein: an oil circuit block is fixedly mounted on the upper end face of the base, and the first oil circuit holes are connected with the oil circuit block through oil pipes.

6. A multi-function hydraulic clamp as claimed in claim 1, wherein: the two-way corner oil cylinders are provided with three groups and are uniformly arranged along the axis of the positioning shaft.

7. A multi-function hydraulic clamp as claimed in claim 1, wherein: a plurality of first sealing rings and a plurality of second sealing rings are arranged among the piston body of the piston, the piston rod and the base respectively, a third sealing ring is arranged between the positioning shaft and the base, and a fourth sealing ring is arranged between the positioning ring and the base and surrounds the first hydraulic loop.

8. The multi-function hydraulic clamp of claim 5, wherein: and a reinforcing rib is fixed between the oil way block and the base.

9. A multi-function hydraulic clamp as claimed in claim 1, wherein: and a threaded hole is formed in a piston rod of the piston along the axis direction of the piston.