CN214722021U

CN214722021U - Shaft positioning device for spline twisting in constant-speed transmission shaft assembly

Info

Publication number: CN214722021U
Application number: CN202121155571.4U
Authority: CN
Inventors: 杨光新; 冯云龙; 孙宇博; 朱澎波
Original assignee: Shanghai GKN Huayu Driveline Systems Co Ltd
Current assignee: Shanghai GKN Huayu Driveline Systems Co Ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-11-16
Anticipated expiration: 2031-05-25

Abstract

The utility model relates to a constant velocity transmission shaft assembly technical field especially relates to a constant velocity transmission shaft assembly is rubbed with hands axle positioner for spline, including support, the tight driving piece in top of locating connecting plate and the lift of drive connecting plate on the support with liftable, install on the connecting plate and be used for removing the terminal surface counterbalance of end spindle nose with the axle and hold the knock pin, be used for the centre gripping axle to remove the holding jaw of end spindle nose tightly with be used for the drive to hold the clamping jaw tightly and press from both sides or loosen the axle and remove the driving piece of holding tightly of end spindle nose. This axle positioner can replace spline piece anchor clamps among the prior art to realize that the location axle removes the end spindle nose and restriction axle circumferencial direction rotates to, because the clamping jaw of holding tightly presss from both sides tightly or unclamps the axle through closed or open mode and remove the end spindle nose, consequently can be applicable to the axle of different grade type and remove the end spindle nose spline, can reduce the action of the artifical installation of operating personnel and take off the spline piece, improve assembly line smoothness nature, effectively practice thrift the anchor clamps cost.

Description

Shaft positioning device for spline twisting in constant-speed transmission shaft assembly

Technical Field

The utility model relates to a constant velocity transmission shaft assembly technical field especially relates to a constant velocity transmission shaft assembly is rubbed with hands axle positioner for spline.

Background

In the process of press-mounting a fixed joint and a shaft assembled by a constant-speed transmission shaft assembly, a shaft head spline at the fixed end of the shaft needs to be aligned and meshed with an internal star wheel spline of the fixed joint, and then press-mounting is carried out, wherein the process of the spline alignment is commonly called as 'thread rolling key'. When the spline is rubbed, the shaft is locked in the circumferential direction, the fixed joint rotates in the circumferential direction, and the spline is matched by the relative rotation of the shaft and the fixed joint.

In the prior art, when a fixed joint and a shaft are pressed and assembled to rub a spline, a spline block is arranged on a shaft head of a movable end of the shaft, the spline block is a clamp with an inner spline in an inner hole and a square outline, the inner spline of the spline block is matched with the spline of the shaft head of the movable end of the shaft, and two side faces of the spline block are limited by two baffles on a pressing piece of the other clamp, so that the rotation of the shaft in the circumferential direction is limited. When the spline is rubbed with hands, the fixed joint is located at the shaft fixing end shaft head, the fixed joint is driven by the fixed joint press positioning tool to rotate clockwise, and the circumferential rotation of the shaft is limited, so that the spline of the internal star wheel of the fixed joint is aligned with and meshed with the spline of the shaft fixing end shaft head.

In the process, the spline block needs to be manually installed on the shaft head of the movable end of the shaft, and then the shaft with the spline block is placed into a positioning tool of a fixed joint press; after the fixed joint and the shaft are pressed and assembled, when an operator takes away a workpiece in the next procedure, the spline block arranged on the shaft head of the movable end of the shaft needs to be taken down. The act of installing and removing the spline blocks takes up the tact time and increases operator action. Moreover, the spline block needs to be designed according to the type of the spline of the shaft moving end shaft head, and the types of the spline of the shaft moving end shaft head are various, so that the manufacturing cost and the field management cost of the spline block clamp are increased.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a constant speed transmission shaft assembly is rubbed with hands axle positioner for spline can replace spline piece anchor clamps to the axle that is applicable to the different grade type removes the end spindle nose spline, in order to overcome prior art's above-mentioned defect.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a constant velocity transmission shaft assembly is rubbed with hands axle positioner for spline, includes the support, locates the connecting plate on the support and the tight driving piece in top that the drive connecting plate goes up and down with liftable, installs on the connecting plate to be used for moving the terminal surface counterbalance of end spindle nose with the axle and hold the clamping jaw tightly and be used for the drive to hold the clamping jaw tightly and press from both sides tightly or loosen the drive piece tightly that holds that the axle removed the end spindle nose.

Preferably, still include the controller and be used for detecting whether there is the axle to remove the sensor that the end spindle nose put into in holding the clamping jaw tightly, sensor, top driving piece and holding the driving piece tightly all are connected with the controller.

Preferably, the connecting plate is provided with a guide post, the bracket is provided with a proximity switch for sensing the guide post above the side of the guide post, and the proximity switch is connected with the controller.

Preferably, the controller is connected with a twisted key cylinder which drives the fixed joint to rotate in the fixed joint press positioning tool.

Preferably, the inner side surface of the holding clamping jaw, which is contacted with the shaft moving end shaft head, is provided with a spline.

Preferably, the jacking driving piece is a jacking air cylinder.

Preferably, the clasping driving piece is a clasping air cylinder.

Compared with the prior art, the utility model discloses the progress that has showing:

in the process of assembling the twist key on the constant-speed transmission shaft, the shaft is placed into a positioning tool of a fixed joint press, and a fixed end shaft head of the shaft is opposite to the fixed joint, the shaft positioning device of the utility model can place a shaft moving end shaft head into a tightly holding clamping jaw of the shaft positioning device, firstly, a tightly holding driving piece drives a connecting plate to descend, a positioning ejector pin, a tightly holding clamping jaw and a tightly holding driving piece are driven to integrally descend, the positioning ejector pin is tightly held with the upper end surface of the shaft moving end shaft head, then, the tightly holding driving piece drives the tightly holding clamping jaw to be closed, so that the tightly holding clamping jaw clamps the shaft moving end shaft head, the shaft moving end shaft head is locked by the tightly holding clamping jaw, the rotation in the circumferential direction of the shaft is limited, and therefore, the twist key action and the press fitting action can be carried out; after the spline rubbing action and the press fitting action are finished, the holding driving piece drives the holding clamping jaw to open and loosen the shaft head of the shaft moving end, the jacking driving piece drives the connecting plate to drive the positioning jacking pin, the holding clamping jaw and the holding driving piece to integrally lift and reset, and then the workpiece with the spline rubbing can be taken down. Therefore, the utility model discloses an axle positioner can replace the spline piece anchor clamps among the prior art to realize that the location axle removes the end spindle nose and restriction axle circumferencial direction rotates to, because holding tightly the clamping jaw and pressing from both sides tightly or loosen the axle through closed or open mode and remove the end spindle nose, consequently can be applicable to the axle of different grade type and remove the end spindle nose spline, can reduce the action of the artifical installation of operating personnel and take off the spline piece, improve assembly line smoothness nature, effectively practice thrift the anchor clamps cost.

Drawings

Fig. 1 is a schematic perspective view of a shaft positioning device for assembling a spline of a constant velocity transmission shaft according to an embodiment of the present invention.

Fig. 2 is a schematic front view of fig. 1.

Fig. 3 is a schematic view of the shaft positioning device for spline rolling in the assembly of a constant velocity transmission shaft according to an embodiment of the present invention.

Fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Wherein the reference numerals are as follows:

1-axis positioning device

11 support

12 connecting plate

13 jacking driving piece

14 positioning ejector pin

15 holding clamping jaw

151 spline

16 holding driving piece

17 sensor

18 guide post

19 proximity switch

2 axle

21 movable end shaft head

3 fixed festival press location frock

31-type cylinder with twisted keys

32 servo motor

4 fixed knot

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings. These embodiments are provided only for illustrating the present invention and are not intended to limit the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified 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 according to specific situations by those skilled in the art.

In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 to 4, the present invention provides an embodiment of a shaft positioning device for spline fitting of a constant velocity transmission shaft.

Referring to fig. 1 and 2, the shaft positioning device 1 for the constant velocity transmission shaft fitted with the spline for rolling of the present embodiment includes a bracket 11, a connecting plate 12, and a tightening drive 13.

The bracket 11 serves as an integral support of the shaft positioning device 1, and plays a role in supporting other structural components of the shaft positioning device 1 and integrally fixing the shaft positioning device 1, and the specific structural form of the bracket 11 is not limited.

The connecting plate 12 is arranged on the bracket 11 in a lifting way, and the driving piece 13 is tightly pushed to drive the connecting plate 12 to lift. In this embodiment, preferably, the connecting plate 12 is horizontally disposed, and the tightening driving member 13 is fixedly mounted on the bracket 11 and connected to the upper surface of the connecting plate 12, so that the connecting plate 12 is suspended on the bracket 11 in a liftable manner. Preferably, the driving member 13 can be a telescopic member having a telescopic end, and the telescopic end of the driving member 13 is connected to the upper surface of the connecting plate 12, and the telescopic end of the driving member 13 drives the connecting plate 12 to move up and down relative to the bracket 11. The form of the telescopic member is not limited, for example, the telescopic member may be a pneumatic or hydraulic cylinder or an electric push rod. In this embodiment, preferably, the tightening driving member 13 is a tightening cylinder, and a piston rod (i.e., a telescopic end) of the tightening cylinder can retract under the action of an external force in an extended state, that is, has a certain degree of freedom of axial movement, and is beneficial to smoothly implementing the spline twisting process.

The connecting plate 12 is provided with a positioning ejector pin 14, a holding clamping jaw 15 and a holding driving piece 16, and when the connecting plate 12 is driven by the holding driving piece 13 to lift, the positioning ejector pin 14, the holding clamping jaw 15 and the holding driving piece 16 are driven to lift synchronously. Preferably, the positioning ejector pin 14, the holding clamping jaw 15 and the holding driving member 16 are all installed below the connecting plate 12, wherein the positioning ejector pin 14 is fixedly installed on the lower surface of the connecting plate 12, the axis of the positioning ejector pin 14 is arranged along the vertical direction, the holding driving member 16 can be installed on the lower surface of the connecting plate 12 through a holding driving member bracket, the holding clamping jaw 15 is installed on the holding driving member 16, the holding clamping jaw 15 is arranged on the outer peripheral side of the positioning ejector pin 14 and located below the positioning ejector pin 14, and the holding clamping jaw 15 is driven by the holding driving member 16 to be closed or opened. Preferably, the clasping driving member 16 is a clasping cylinder, and the clasping cylinder capable of driving the clasping clamping jaws 15 to close or open is prior art and will not be described in detail herein. Referring to fig. 3 and 4, the positioning knock pin 14 is used for abutting against the upper end surface of the movable end shaft head 21 of the shaft 2, the holding jaw 15 is used for clamping the movable end shaft head 21 of the shaft 2, and the holding driving piece 16 is used for driving the holding jaw 15 to be closed and clamping the movable end shaft head 21 of the shaft 2 or driving the holding jaw 15 to be opened and releasing the movable end shaft head 21 of the shaft 2.

Referring to fig. 3 and 4, in the procedure of assembling the spline of the shaft 2, the shaft 2 is placed into the positioning tool 3 of the fixed joint press, and the fixed end spindle nose of the shaft 2 is opposite to the fixed joint 4, by using the shaft positioning device 1 of the present embodiment, the movable end spindle nose 21 of the shaft 2 can be placed into the holding jaw 15 of the shaft positioning device 1 of the present embodiment, the connecting plate 12 is driven to descend by the holding driving member 13, the positioning ejector pin 14, the holding jaw 15 and the holding driving member 16 are driven to integrally descend, so that the positioning ejector pin 14 is held against the upper end face of the movable end spindle nose 21 of the shaft 2, then the holding jaw 15 is driven to close by the holding driving member 16, so that the holding jaw 15 clamps the movable end spindle nose 21 of the shaft 2, the movable end spindle nose 21 of the shaft 2 is locked by the holding jaw 15, the circumferential rotation of the shaft 2 is limited, and the spline twisting action and the press-fitting action can be performed; after the spline twisting action and the press fitting action are finished, the clasping driving piece 16 drives the clasping clamping jaw 15 to open and loosen the movable end shaft head 21 of the shaft 2, the jacking driving piece 13 drives the connecting plate 12 to drive the positioning jacking pin 14, the clasping clamping jaw 15 and the clasping driving piece 16 to integrally lift and reset, and then the workpiece which is finished with spline twisting can be taken down. From this, the axle positioner 1 of this embodiment can replace the spline piece anchor clamps among the prior art to realize that location axle 2 removes

end spindle nose

21 and 2 circumferencial directions of restriction axle rotate, and, because holding tightly clamping jaw 15 and pressing from both sides tightly or unclamp axle 2 and remove end spindle nose 21 through closed or open mode, consequently can be applicable to the axle of different grade type and remove the end spindle nose spline, can reduce the action of operating personnel manual installation and take off the spline piece, improve assembly line smoothness nature, effectively practice thrift the anchor clamps cost.

Referring to fig. 1, in the present embodiment, it is preferable that the gripping jaw 15 has splines 151 on its inner side surface contacting the movable end shaft head 21 of the shaft 2. The inner side surface of the holding clamping jaw 15 is designed to be of a tooth-shaped structure with the spline 151, so that shaft moving end shaft heads of different types of splines can be held tightly better.

Referring to fig. 2, the shaft positioning device 1 of the present embodiment preferably further includes a controller (not shown in the drawings) and a sensor 17, the sensor 17 is used for detecting whether the shaft 2 moving end head 21 is put into the holding jaw 15, and the sensor 17, the jacking driving member 13 and the holding driving member 16 are all connected with the controller. When an operator puts the shaft head 21 of the moving end of the shaft 2 into the holding clamping jaw 15, the sensor 17 senses that the shaft head 21 of the moving end of the shaft 2 is put into the holding clamping jaw 15, the sensor 17 transmits the sensed signal to the controller, the controller receives the sensed signal of the sensor 17 and sends an extending action command and a holding action command to the jacking driving piece 13 and the holding driving piece 16 respectively according to the received sensed signal, the jacking driving piece 13 receives and responds to the extending action command to drive the connecting plate 12 to descend so as to drive the positioning ejector pin 14, the holding clamping jaw 15 and the holding driving piece 16 to integrally descend, and the positioning ejector pin 14 is abutted against the upper end face of the shaft head 21 of the moving end of the shaft 2; the clasping driving piece 16 receives and responds to the clasping action command to drive the clasping clamping jaw 15 to close, so that the clasping clamping jaw 15 clamps the movable end shaft head 21 of the shaft 2. Thereby achieving the automatic positioning of the shaft 2 moving end shaft head 21 and the limiting of the circumferential rotation of the shaft 2. In this embodiment, the form of the sensor 17 is not limited, and any sensor capable of sensing the moving end shaft head 21 of the shaft 2 may be adopted; the form of the controller is not limited, and the controller in the prior art, such as a PLC controller or a singlechip, can be adopted.

Further, in this embodiment, preferably, the connecting plate 12 is provided with a guide post 18, the guide post 18 is lifted synchronously with the connecting plate 12, the bracket 11 is provided with a proximity switch 19 above the side of the guide post 18 for sensing the guide post 18, and the proximity switch 19 is connected with the controller. Preferably, the guide post 18 is vertically arranged, the lower end of the guide post 18 is fixedly connected with the upper surface of the connecting plate 12, the upper end of the guide post 18 movably penetrates through the bracket 11, and the guide post 18 can guide the lifting of the connecting plate 12. The proximity switch 19 is arranged at the top end of the bracket 11 and above the side of the guide post 18, and when the guide post 18 ascends to pass through the proximity switch 19, the proximity switch 19 is triggered; when the guide post 18 is lowered away from the proximity switch 19, the proximity switch 19 is opened. Preferably, the controller is connected with a twisted key cylinder 31 which drives the fixed joint 4 to rotate in the fixed joint press positioning tool 3.

When the automatic lifting device works, when an operator puts the shaft head 21 at the moving end of the shaft 2 into the holding clamping jaw 15, the controller automatically controls the actions of the holding driving piece 13 and the holding driving piece 16 according to a detection signal of the sensor 17 to enable the positioning ejector pin 14 to be tightly ejected against the upper end face of the shaft head 21 at the moving end of the shaft 2, and after the holding clamping jaw 15 clamps the shaft head 21 at the moving end of the shaft 2, a start button of the fixed throttle positioning tool 3 can be pressed down; when the guide post 18 rises to the upper end of the guide post 18 and passes through the proximity switch 19, the proximity switch 19 triggers a trigger signal and transmits the trigger signal to the controller, the controller receives the trigger signal of the proximity switch 19 and controls the movement of the twisted key cylinder 31 according to the received trigger signal, so that the twisted key cylinder 31 drives the fixed joint 4 to rotate, and the internal star wheel spline of the fixed joint 4 can be aligned with the shaft head spline of the fixed end of the shaft 2 through the relative rotation of the fixed joint 4 and the shaft 2; when the internal star wheel spline of the fixed joint 4 is aligned with the fixed end shaft head spline of the shaft 2, the compressed jacking driving piece 13 (jacking cylinder) can automatically rebound and extend out to drive the connecting plate 12, the guide post 18, the positioning jacking pin 14, the clamping jaw 15, the jacking driving piece 16 and the shaft 2 to integrally descend together, so that the fixed end shaft head spline of the shaft 2 is jacked into the internal star wheel spline of the fixed joint 4, the guide post 18 descends and leaves the proximity switch 19, the trigger signal of the proximity switch 19 is disconnected, the controller controls the twisting key cylinder 31 to stop driving the fixed joint 4 to rotate according to the disconnection of the trigger signal of the proximity switch 19, at the moment, the internal star wheel spline of the fixed joint 4 is meshed with the shaft fixed end shaft head spline of the shaft 2, and the twisting key action is finished; the servo motor 32 continues to drive the fixed joint 4 to move upwards, and then the press mounting action of the star wheel in the fixed joint 4 and the shaft head at the fixed end of the shaft 2 can be completed; after the press fitting is finished, the servo motor 32 resets, the tightly-pushing driving piece 13 (the tightly-pushing cylinder) retracts to drive the connecting plate 12, the guide pillar 18, the positioning ejector pin 14, the tightly-holding clamping jaw 15 and the tightly-holding driving piece 16 to wholly ascend and reset, the tightly-holding driving piece 16 drives the tightly-holding clamping jaw 15 to open and loosen the shaft head 21 of the moving end of the shaft 2, and therefore the workpiece with the splines can be taken down.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a constant velocity transmission shaft assembly is rubbed axle positioner for spline with hands, its characterized in that includes support (11), locates liftable connecting plate (12) and drive on support (11) tight driving piece (13) in top that connecting plate (12) go up and down, install on connecting plate (12) and be used for with axle (2) the terminal surface counterbalance location knock pin (14), be used for the centre gripping of moving end spindle nose (21) axle (2) move holding clamping jaw (15) and being used for the drive holding clamping jaw (15) are tight or loosen axle (2) move holding driving piece (16) tightly of end spindle nose (21).

2. The shaft positioning device for assembling the spline for the constant-speed transmission shaft with the twist according to claim 1, further comprising a controller and a sensor (17) for detecting whether a shaft (2) moving end shaft head (21) is put into the holding jaw (15), wherein the sensor (17), the jacking driving member (13) and the holding driving member (16) are connected with the controller.

3. The shaft positioning device for spline fitting of constant velocity transmission shaft according to claim 2, wherein a guide post (18) is provided on the connecting plate (12), a proximity switch (19) for sensing the guide post (18) is provided on the bracket (11) above the side of the guide post (18), and the proximity switch (19) is connected to the controller.

4. The shaft positioning device for assembling the spline for the constant-speed transmission shaft according to claim 3, wherein the controller is connected with a spline cylinder (31) which drives the fixed joint (4) to rotate in the fixed joint press positioning tool (3).

5. The shaft positioning device for spline fitting of constant velocity transmission shaft according to claim 1, wherein the spline (151) is provided on the inner side surface of the gripping jaw (15) contacting the shaft head (21) of the moving end of the shaft (2).

6. The shaft positioning device for spline fitting of constant velocity transmission shaft according to claim 1, wherein the tightening drive member (13) is a tightening cylinder.

7. The shaft positioning device for spline assembly of constant velocity transmission shaft according to claim 1, wherein the gripping driving member (16) is a gripping cylinder.