CN217889539U

CN217889539U - Hydraulic tension mandrel with internal spline tooth side positioning function

Info

Publication number: CN217889539U
Application number: CN202222450233.4U
Authority: CN
Inventors: 杨啸; 肖江; 严学涛; 谢理鹏; 李国光
Original assignee: HUBEI DANJIANGKOU DANCHUAN AUTOMOBILE TRANSMISSION SHAFT CO Ltd
Current assignee: HUBEI DANJIANGKOU DANCHUAN AUTOMOBILE TRANSMISSION SHAFT CO Ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2022-11-25
Anticipated expiration: 2032-09-16

Abstract

The utility model discloses a hydraulic pressure tight dabber that rises with spline tooth side location, including dabber body, stop collar, spline rise tight cover, uide bushing and pressure regulating part, this internal establishing of dabber is the criss-cross oil duct, is provided with the step face on the dabber body, has installed the stop collar through the spacer ring on the step face to it rises tight cover to install the spline between stop collar and dabber body. The utility model discloses a mo shi taper shank and the equipment main shaft of dabber body left end join in marriage dress, and end cap, spline rise the structure of tight cover, pressure regulating part and uide bushing and formed an inclosed oil duct, and the pressure of this internal hydraulic oil of dabber is changed to the position of adjustment pressure regulating part in the oil duct, makes the spline rise and tightly overlap and evenly rise, eliminates the positioning gap of flank. The utility model provides a hydraulic pressure rises and tightly dabber fixes a position with the internal spline flank, and positioning accuracy is high, presss from both sides tightly reliable and stable, and loading and unloading part is convenient, has guaranteed simultaneously that the machining precision of part rises through hydraulic pressure and tightly eliminates flank positioning gap, guarantees the positioning accuracy of part.

Description

Hydraulic tension mandrel with internal spline tooth side positioning function

Technical Field

The utility model relates to a hydraulic pressure tight dabber technical field that rises, more specifically relates to a hydraulic pressure tight dabber that rises who fixes a position with interior spline tooth side.

Background

The existing internal spline mandrel is mainly provided with a taper mandrel with large-diameter centering or tooth side centering, the mandrel and a part are matched in a press-fitting mode, the mandrel is fast to wear and high in cost, two ends of the mandrel are positioned through a center hole, clamping errors exist after the part is clamped, after the mandrel is frequently clamped, the mandrel is prone to wear to the center hole, the positioning errors are enlarged, the machining precision of products cannot be guaranteed, clamping is troublesome, and automation is not easy to achieve.

The utility model relates to a tight dabber that rises in spline tooth side location, dabber one end adopt morse's tapering and equipment main shaft to join in marriage, guarantee the cooperation precision of dabber and equipment, adopt hydraulic pressure to rise simultaneously and tightly, eliminate the positioning gap of flank, and the dabber need not frequent loading and unloading, improves the positioning accuracy and the life of dabber.

SUMMERY OF THE UTILITY MODEL

The utility model provides a hydraulic pressure tight dabber that rises with spline flank location to solve spline dabber positioning accuracy and the life problem with spline flank location processing internal spline class product.

According to the utility model discloses an aspect provides a hydraulic pressure tight dabber that rises in internal spline tooth side location, rise tight cover, uide bushing and pressure regulating spare including dabber body, stop collar, spline, this internal criss-cross oil duct that is of dabber, be provided with the step face on the dabber body, install through the position circle on the step face the stop collar, and be in the stop collar with the tight cover that rises of spline has been installed between the dabber body, the tight cover suit that rises of spline is in the outer disc of dabber body and through the sealing washer in order to realize right two ports of oil duct are sealed, the spline rise the terminal surface of tight cover pass through the uide bushing with dabber body terminal surface locking, the pressure regulating spare is worn to establish the uide bushing and with the port sliding seal adaptation of oil duct, the dabber body with the relative oil duct port of pressure regulating spare passes through the end cap in order to seal.

On the basis of the scheme, the oil passage preferably comprises two opposite axial ports and an even number of radial ports, the plug and the pressure regulating piece are arranged in the axial ports, and the radial ports are communicated with the inner circular surface of the spline tensioning sleeve.

On the basis of the scheme, the radial ports are preferably uniformly and symmetrically distributed along the central line of the mandrel body.

On the basis of the scheme, the mandrel body is preferably provided with clamping grooves on the outer circular surface, the clamping grooves are located on two sides of the port of the oil duct, and sealing rings are arranged in the clamping grooves.

On the basis of the scheme, the guide sleeve and the mandrel body are preferably locked through bolts.

On the basis of the scheme, preferably, a plurality of grooves distributed at intervals are formed in the outer circular surface of one end, matched with the oil duct, of the pressure regulating piece, and sealing rings are arranged in the grooves.

On the basis of the scheme, preferably, the groove is formed along the outer circular surface of the pressure regulating piece, a Y-shaped sealing ring is arranged in the groove close to one side of the plug, and an O-shaped sealing ring is arranged in the groove close to one side of the guide sleeve.

The utility model discloses a hydraulic pressure tight dabber that rises of internal spline tooth side location, the morse taper shank and the equipment main shaft of dabber body left end join in marriage dress, and end cap, spline rise the structure of tight cover, pressure regulating part and uide bushing and formed an inclosed oil duct, and the position of pressure regulating part in the oil duct changes the pressure of this internal hydraulic oil of dabber, makes spline tight cover that rises evenly rise, eliminates the positioning gap of flank.

The utility model provides a hydraulic pressure rises and tightly dabber fixes a position with the internal spline flank, and positioning accuracy is high, presss from both sides tightly reliable and stable, and loading and unloading part is convenient, has guaranteed simultaneously that the machining precision of part rises through hydraulic pressure and tightly eliminates flank positioning gap, guarantees the positioning accuracy of part.

Drawings

FIG. 1 is a sectional view of the hydraulic tensioning mandrel with internal spline teeth side positioning according to the present invention;

fig. 2 is a schematic structural view of a mandrel body according to an embodiment of the present invention;

FIG. 3 is a schematic view of a spline tensioning sleeve according to an embodiment of the present invention;

fig. 4 is a side view of fig. 3 of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1, and shown in fig. 2, fig. 3 and fig. 4, the hydraulic tensioning mandrel with internal spline tooth side positioning according to the present invention includes a mandrel body 1, a limiting sleeve 3, a spline tensioning sleeve 5, a guiding sleeve 7 and a pressure regulating member 8.

The utility model discloses be equipped with in dabber body 1 and be criss-cross oil duct, the oil duct is still in with dabber body 1's central line setting the utility model discloses a dabber body 1 is last to be provided with step face 14, step face 14 facial make-up is equipped with stop collar 3, the block has the position circle between the interior disc of stop collar 3 and the side end face of step face 14, the opposite side of position circle has been installed the spline and has been expanded tight cover 5, the spline expand tight cover 5 suit on dabber body 1's outer disc and by 3 chucking of stop collar, and the spline expands tight cover 5 other ends and passes through 7 location of uide bushing on dabber body 1's terminal surface.

The utility model discloses an oil duct port of 1 one side of dabber body is by end cap 2 in order sealed, and is equipped with pressure regulating spare 8 with the oil duct facial make-up of 2 relative one sides of end cap, and two other ports of oil duct rise with the spline and tightly overlap 5 intercommunications.

When the spline expanding sleeve is used, an internal spline of a part to be processed is assembled on the spline expanding sleeve 5, the pressure of hydraulic oil 11 in the mandrel body 1 is changed by moving the pressure regulating piece 8, so that the spline expanding sleeve 5 is uniformly expanded, and the positioning gap of the tooth side is eliminated.

As shown in fig. 1, the oil duct of the present invention includes two opposite axial ports 12 and an even number of radial ports 13, the plug 2 and the pressure adjusting member 8 are installed in the axial ports 12, and the radial ports 13 are communicated with the inner circular surface of the spline tensioning sleeve 5. And the radial ports 13 are evenly and symmetrically distributed about the centre line of the mandrel body 1.

When the pressure regulating part is adjusted to change the oil pressure, the pressure regulating part acts on the spline tensioning sleeve 5 through different radial ports 13 so as to ensure that the spline tensioning sleeve is stressed uniformly.

In order to prevent that the oil pressure is excessive, ensure the even conduction of oil pressure effort, the utility model discloses be equipped with the draw-in groove on the 1 outer surface of dabber body, the draw-in groove is in the built-in sealing washer that is equipped with of draw-in groove is in the both sides of the port of oil duct.

Preferably, the utility model discloses a uide bushing 7 with through the bolt in order to lock between the dabber body 1. The pressure regulating part 8 is provided with a plurality of grooves distributed at intervals with the outer circular surface of one end of the oil duct in a matched mode, sealing ring grooves are arranged in the grooves and arranged along the outer circular surface of the pressure regulating part, the grooves are close to the Y-shaped sealing rings 10 in the grooves on one side of the plugs 2, and the grooves on one side of the guide sleeves 7 are provided with O-shaped sealing rings 9.

The utility model discloses a hydraulic pressure that interior spline tooth side was fixed a position rises and rises dabber, the mo shi taper shank and the equipment main shaft of 1 left end of dabber body join in marriage dress, and end cap 2, spline rise tight cover 5, pressure regulating part 8 and the structure of uide bushing 7 has formed an inclosed oil duct, and the position of pressure regulating part 8 in the oil duct changes the pressure of hydraulic oil 11 in the dabber body 1, makes the spline rise tight cover 5 and evenly rise to open, eliminates the positioning gap of flank.

Finally, the method of the present application is only a preferred embodiment and is not intended to limit the scope of the present invention. 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 hydraulic tensioning mandrel with the internal spline tooth side positioning function is characterized by comprising a mandrel body, a limiting sleeve, a spline tensioning sleeve, a guide sleeve and a pressure regulating piece, wherein a cross-shaped oil duct is arranged in the mandrel body, a step surface is arranged on the mandrel body, the limiting sleeve is arranged on the step surface through a positioning ring, the spline tensioning sleeve is arranged between the limiting sleeve and the mandrel body, the spline tensioning sleeve is sleeved on the outer circular surface of the mandrel body and is sealed through a sealing ring to seal two ports of the oil duct, the end face of the spline tensioning sleeve is locked with the end face of the mandrel body through the guide sleeve, the pressure regulating piece penetrates through the guide sleeve and is matched with the port of the oil duct in a sliding sealing mode, and the oil duct port, opposite to the pressure regulating piece, of the mandrel body is sealed through a plug.

2. The internal spline tooth side positioned hydraulic tensioning mandrel as claimed in claim 1, wherein the oil channel comprises two opposite axial ports and an even number of radial ports, the plug and the pressure regulating member are arranged in the axial ports, and the axial ports are communicated with the inner circular surface of the spline tensioning sleeve.

3. The internally splined flank positioned hydraulic tensioning mandrel of claim 2 wherein the radial ports are evenly and symmetrically distributed about the centerline of the mandrel body.

4. The internal spline tooth side positioned hydraulic tensioning mandrel as claimed in claim 1, wherein clamping grooves are formed in the outer circumferential surface of the mandrel body, the clamping grooves are located on two sides of the port of the oil passage, and sealing rings are arranged in the clamping grooves.

5. The internally splined flank located hydraulic tensioning mandrel of claim 1 wherein the guide sleeve and the mandrel body are bolted together.

6. The internal spline tooth side positioning hydraulic tensioning mandrel as claimed in claim 1, wherein the outer circular surface of one end of the pressure regulating part, which is matched with the oil channel, is provided with a plurality of grooves which are arranged at intervals, and sealing rings are arranged in the grooves.

7. The internal spline flank positioning hydraulic tensioning mandrel as claimed in claim 6, wherein the groove is formed along the outer circumferential surface of the pressure regulating member, a Y-shaped seal ring is arranged in the groove on the side close to the plug, and an O-shaped seal ring is arranged in the groove on the side close to the guide sleeve.