CN212683371U

CN212683371U - Grinding machine for grinding yoke lug holes

Info

Publication number: CN212683371U
Application number: CN202021508297.XU
Authority: CN
Inventors: 华国伟; 应关立; 韩秋根
Original assignee: Hangzhou Shenghua Automotive Electronic Technology Co ltd
Current assignee: Hangzhou Shenghua Automotive Electronic Technology Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-03-12
Anticipated expiration: 2030-07-27

Abstract

The utility model relates to a grinding machine for polishing yoke earhole, including the frame, rotate and install the hole grinding piece that sets up along frame length direction in frame one side, install and be used for driving hole grinding piece pivoted driving piece in the frame, along frame length direction sliding connection in the hole grinding piece be used for spacing stop device in inside with the yoke, install in the frame and be used for driving stop device along frame length direction reciprocating motion's stepping arrangement. This application has and need not the tool setting trial cut, reduces the effect of festival fork outer wall unnecessary wearing and tearing.

Description

Grinding machine for grinding yoke lug holes

Technical Field

The application relates to the field of grinding machines, in particular to a grinding machine for grinding a yoke lug hole.

Background

The universal joint is a machine part for realizing variable-angle power transmission, is used for changing the position of the transmission axis direction, and the joint fork is a force transmission rod piece of the universal joint, and the smoothness of the connection position of the joint fork has great influence on the smoothness of the transmission of the universal joint.

At present, a grinding machine is generally used for sequentially carrying out rough machining and finish machining on an inner hole of a yoke, before grinding, the position of the yoke needs to be clamped and fixed firstly, then a tool is tried to be cut, so that the accuracy of the grinding position is ensured, and when a small-size grinding wheel rotates at a high speed to grind the inner hole of the yoke, cutting fluid is opened to cool the inner hole of the yoke until the inner hole of the yoke is ground.

For the related technologies, the inventor thinks that the tool setting needs to be tentatively cut before the grinding machine is used, that is, the outer wall of the joint yoke needs to be tentatively ground to ensure the positioning accuracy, but after the outer wall of the joint yoke is unnecessarily ground, the dimension after the tool setting is smaller than the original dimension, and the use of the joint yoke is affected.

Disclosure of Invention

In order to reduce the unnecessary wearing and tearing of yoke outer wall, this application provides a grinding machine for polishing yoke lug hole.

The application provides a grinding machine for polishing yoke earhole adopts following technical scheme:

the utility model provides a grinding machine for polishing yoke earhole, includes the frame, rotates and installs the hole grinding piece that sets up along frame length direction in frame one side, install and be used for driving hole grinding piece pivoted driving piece in the frame, along frame length direction sliding connection in the hole grinding piece be used for spacing stop device in inside with the yoke, install in the frame and be used for driving stop device along frame length direction reciprocating motion's stepping arrangement.

Through adopting above-mentioned technical scheme, before using this grinding machine, grind the earhole that the orifice piece passed the festival fork earlier, will the festival fork inwards penetrate to install in stop device. The driving piece and the stepping device are started simultaneously, the driving piece drives the hole grinding piece to rotate, and the hole grinding piece rotates at a high speed and grinds the inner wall of the ear hole simultaneously. Step-by-step device drives stop device and festival fork and removes along grinding hole spare length direction, makes each place in the festival fork earhole can both grind, has avoided because the grinding degree of consistency that the partial wearing and tearing of grinding hole spare lead to the earhole receives the influence, and simultaneously, this mode of polishing need not the tool setting examination and grinds, and the festival fork does not have unnecessary wearing and tearing.

Preferably, the stepping device includes that the dowel steel of frame is worn out to the level, rotate to connect in the connecting rod that the dowel steel lies in frame one end, rotate to connect in the connecting rod keep away from the actuating lever of dowel steel one end and be used for driving actuating lever pivoted driving motor, the dowel steel is worn out frame one end fixed connection in stop device.

By adopting the technical scheme, after the driving motor is started, the rotating shaft at the end part of the driving motor rotates to drive the driving rod to rotate, the driving rod rotates to drive the connecting rod and the dowel bar to move, and the dowel bar can only move along the length direction of the rack, so that a crank rocker structure is formed. The purpose is to drive the dowel bar and the limiting device to move, and the effect of moving and polishing the joint fork is achieved.

Preferably, stop device includes the dead lever of baffle and limiting plate and connecting baffle and limiting plate that set up along dowel steel length direction interval, the dowel steel passes baffle and fixed connection in baffle along baffle thickness direction, the wear-to-establish groove that supplies to grind the orifice spare and pass is seted up along its thickness direction to the limiting plate lateral wall.

Through adopting above-mentioned technical scheme, during polishing, the festival fork is located between baffle and the limiting plate, and is spacing by both, and during polishing, the festival fork earhole is supported by high-speed pivoted mill hole spare, grinds the burr of hole spare with the earhole inner wall and gets rid of, grinds the hole spare and passes the groove of wearing to establish, reaches the effect of dodging to grinding the hole spare.

Preferably, the fixed rods are arranged at intervals along the width direction of the rack, and the limiting plate is rotatably connected to one fixed rod and abuts against the other fixed rod.

Through adopting above-mentioned technical scheme, rotate when limiting plate one end and connect in the dead lever, other end butt is when the dead lever, and when fixed festival fork position, lift up limiting plate one end, the limiting plate other end rotates to the state of opening, and the festival fork of being convenient for penetrates between baffle and the limiting plate, and the hole piece that grinds of also being convenient for simultaneously passes the festival fork earhole, polishes, provides great facility for material loading and unloading.

Preferably, the fixed rod abutting against the limiting plate is fixedly provided with two positioning plates for positioning the limiting plate, and the two positioning plates are arranged at intervals along the length direction of the fixed rod.

Through adopting above-mentioned technical scheme, when the limiting plate rotated to offset with the dead lever, the space that the limiting plate supplied the yoke to get into was the closure state. Because step-by-step device can drive stop device reciprocating motion, the in-process that the limiting plate removed can have the vibration of its direction of motion, consequently striking yoke influences the polishing of yoke. After the positioning plate is arranged, the end, far away from the rotation end, of the limiting plate is limited, and the swinging of the limiting plate in the moving process of the limiting device is reduced.

Preferably, a guide rod is fixedly arranged on one side, provided with the limiting device, of the machine frame, and penetrates through the baffle along the thickness direction of the baffle and is connected to the baffle in a sliding manner along the thickness direction of the baffle.

By adopting the technical scheme, when the baffle moves relative to the rack, the baffle is driven to move only by the stepping device, and the baffle can shake in the transmission process of the stepping device. After the guide rod is installed, the movement of the baffle is guided, so that the limiting device is more stable to move, and the use experience is improved.

Preferably, the rack is fixedly provided with a storage hopper on one side provided with a limiting device, and the storage hopper is positioned below the limiting device.

Through adopting above-mentioned technical scheme, the festival fork blanking that finishes of polishing is kept in to a hopper, does not need the manpower to place the festival fork that the grinding finishes repeatedly, provides convenience for the operator.

Preferably, the storage hopper is in a screen mesh shape, and an oil storage cavity is inwards formed in one side, provided with the storage hopper, of the rack.

Through adopting above-mentioned technical scheme, the in-process of polishing the yoke earhole inner wall needs to spout the cutting fluid to the part of polishing to reach the effect of cooling. The sprayed cutting fluid is stored in the oil storage cavity for temporary storage, so that the same cleaning is facilitated.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the hole grinding piece rotates at a high speed and grinds the inner wall of the ear hole at the same time, and the stepping device drives the limiting device and the joint fork to move along the hole grinding piece, so that grinding is more uniform.

2. Dowel bar, connecting rod and actuating lever form the crank rocker structure, drive stop device and remove, reach the effect that the yoke removed and polishes.

3. The installation of locating plate keeps away from its rotation one end to the limiting plate and also carries on spacingly, reduces rocking of the in-process limiting plate of polishing.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a horizontal sectional view of the present embodiment;

fig. 3 is a schematic view of the structure of the yoke.

Description of reference numerals: 10. a frame; 11. grinding a hole piece; 12. a drive member; 20. a limiting device; 21. a baffle plate; 22. a limiting plate; 23. a groove is arranged in a penetrating way; 24. positioning a plate; 25. a guide bar; 26. fixing the rod; 30. a stepping device; 31. a dowel bar; 32. a connecting rod; 33. a drive rod; 34. a drive motor; 40. an oil storage chamber; 41. a storage hopper; 42. an oil guide pipe; 43. a valve; 44. an oil outlet pipe; 50. a joint fork; 51. an ear hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a grinding machine for polishing yoke lug holes. Referring to fig. 1 and 2, the device comprises a frame 10, a hole grinding member 11 for grinding a hole 51, a driving member 12 for driving the hole grinding member 11 to rotate, a limiting device 20 for limiting a yoke 50 inside, and a stepping device 30 for driving the limiting device 20 to reciprocate along the length direction of the frame 10. The stepping device 30 and the driving element 12 are both installed in the frame 10, an oil storage chamber 40 is formed downwards on one side of the frame 10 where the limiting device 20 is installed, and the lower end of the outer wall of the frame 10 is also communicated with an oil guide pipe 42 and a valve 43 for controlling the opening and closing of the oil guide pipe 42. A storage hopper 41 for temporarily storing the joint fork 50 is fixedly arranged in the oil storage cavity 40, and the peripheral wall of the storage hopper 41 is in a screen shape.

Before the yoke 50 is ground, the position of the yoke is limited by the limiting device 20, the stepping device 30 controls the limiting device 20 and the yoke 50 fixed by the limiting device 20 to reciprocate, in the process, the hole grinding piece 11 moves in the yoke 50, the ear hole 51 is ground smooth, meanwhile, the cutting fluid is cooled and enters the oil storage cavity 40, and finally, the cutting fluid is led out from the oil guide pipe 42. The polished joint yoke 50 is temporarily stored in the discharge hopper.

Specifically, referring to fig. 2, the driving member 12 may be a motor, the hole grinding member 11 may be a rod member having a surface roughness of ra0.4-ra12.5, and the hole grinding member 11 and the driving member 12 are connected by a bolt. Two sets of stepping devices 30 are provided at intervals in the width direction of the frame 10. Step device 30 is including the dowel steel 31, connecting rod 32, actuating lever 33 and the driving motor 34 that connect gradually, and driving motor 34 fixed mounting is in frame 10, and the pivot of its tip is rotated and is connected in actuating lever 33, and actuating lever 33 keeps away from pivot one end and rotates to be connected in connecting rod 32, and actuating lever 33 one end rotation connection in dowel steel 31 is kept away from to connecting rod 32, and dowel steel 31 wears out frame 10 along frame 10 length direction, and dowel steel 31 sliding connection in frame 10. The end of the dowel bar 31 far away from the connecting rod 32 is fixedly connected to the limiting device 20.

Referring to fig. 1 and 2, the limiting device 20 includes a baffle 21 and a limiting plate 22 which are arranged at intervals. The lateral wall of the limiting plate 22 is provided with a through groove 23 for the grinding hole piece 11 to pass through, and the through groove 23 is arranged along the thickness direction of the limiting plate 22. One side of the baffle 21 close to the limiting plate 22 is provided with two fixing rods 26, and the two fixing rods 26 are arranged at intervals along the width direction of the rack 10 and fixedly connected to the limiting plate 22. One of the fixing rods 26 passes through the limiting plate 22 along the thickness direction of the limiting plate 22, and is slidably connected to the limiting plate 22 along the direction. The fixing rod 26 is externally fixed with two positioning plates 24 for positioning the limiting plates 22, and the two positioning plates 24 are arranged at intervals along the length direction of the fixing rod 26. The position limiting plate 22 is disposed between the two positioning plates 24, and one end of the position limiting plate 22 away from the rotation point abuts against the outer wall of the fixing rod 26.

The frame 10 is equipped with stop device 20 one side and fixedly is equipped with guide arm 25, and guide arm 25 is equipped with two along frame 10 width direction interval, and guide arm 25 passes baffle 21 along baffle 21 thickness direction, and along this direction sliding connection in baffle 21. An oil outlet pipe 44 which can be extended and contracted is also arranged on the side of the frame 10, and the oil outlet end of the oil outlet pipe 44 faces between the limiting plate 22 and the baffle plate 21.

During feeding, the limiting plate 22 is rotated to an open state, the yoke 50 is placed between the baffle plate 21 and the limiting plate 22, the hole grinding piece 11 penetrates through the lug hole 51 of the yoke 50, the limiting plate 22 is rotated to the end part of the limiting plate 22 to enter between the two positioning plates 24, and at the moment, the yoke 50 is limited by the limiting plate 22 and the baffle plate 21. When polishing, earhole 51 is supported by high-speed pivoted hole piece 11 that grinds, and simultaneously, the pivot of driving motor 34 tip is rotated and is driven actuating lever 33 and rotate, and actuating lever 33 rotates and drives connecting rod 32 and dowel steel 31 and remove, and stop device 20 forms reciprocating motion, drives festival fork 50 axial displacement, grinds hole piece 11 and gets rid of the burr of earhole 51 inner wall.

The implementation principle of the grinding machine for grinding the yoke lug hole in the embodiment of the application is as follows: before the yoke 50 is ground, the position of the yoke is limited by the limiting device 20, the stepping device 30 controls the limiting device 20 and the yoke 50 fixed by the limiting device 20 to reciprocate, and in the process, the hole grinding piece 11 moves in the yoke 50 to grind the earhole 51 smoothly. The cutting fluid discharged from the oil outlet pipe 44 cools the joint yoke 50 during grinding. The processed joint forks 50 are put into the storage hopper 41 for temporary storage.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a grinding machine for polishing yoke lug hole which characterized in that: the device comprises a rack (10), a hole grinding piece (11) rotatably installed on one side of the rack (10) and arranged along the length direction of the rack (10), a driving piece (12) installed in the rack (10) and used for driving the hole grinding piece (11) to rotate, a limiting device (20) connected to the hole grinding piece (11) in a sliding mode along the length direction of the rack (10) and used for limiting a pitch fork (50) inside, and a stepping device (30) installed in the rack (10) and used for driving the limiting device (20) to reciprocate along the length direction of the rack (10).

2. A grinding machine for grinding yoke earholes as defined in claim 1, wherein: step device (30) including level dowel steel (31) of wearing out frame (10), rotate and connect in dowel steel (31) be located connecting rod (32) of frame (10) one end, rotate and connect in connecting rod (32) keep away from actuating lever (33) of dowel steel (31) one end and be used for driving actuating lever (33) pivoted driving motor (34), dowel steel (31) wear out frame (10) one end fixed connection in stop device (20).

3. A grinding machine for grinding yoke earholes as defined in claim 1, wherein: stop device (20) include baffle (21) and limiting plate (22) and connecting baffle (21) and dead lever (26) of limiting plate (22) that set up along dowel steel (31) length direction interval, dowel steel (31) pass baffle (21) and fixed connection in baffle (21) along baffle (21) thickness direction, limiting plate (22) lateral wall is seted up wearing to establish groove (23) that supplies to grind hole spare (11) and pass along its thickness direction.

4. A grinding machine for grinding yoke earholes as defined in claim 3, wherein: the fixing rods (26) are arranged at intervals along the width direction of the rack (10), and the limiting plates (22) are rotatably connected to one fixing rod (26) and abut against the other fixing rod (26).

5. A grinding machine for grinding yoke earholes as defined in claim 3, wherein: the fixing rod (26) abutted against the limiting plate (22) is fixedly provided with two positioning plates (24) for positioning the limiting plate (22), and the two positioning plates (24) are arranged at intervals along the length direction of the fixing rod (26).

6. A grinding machine for grinding yoke earholes as defined in claim 1, wherein: the guide rod (25) is fixedly arranged on one side, provided with the limiting device (20), of the rack (10), the guide rod (25) penetrates through the baffle (21) along the thickness direction of the baffle (21) and is connected to the baffle (21) in a sliding mode along the direction.

7. A grinding machine for grinding yoke earholes as defined in claim 1, wherein: the storage hopper (41) is fixedly arranged on one side, provided with the limiting device (20), of the rack (10), and the storage hopper (41) is located below the limiting device (20).

8. A grinding machine for grinding yoke earholes as defined in claim 7, wherein: the storage hopper (41) is in a screen mesh shape, and an oil storage cavity (40) is inwards formed in one side, provided with the storage hopper (41), of the rack (10).