CN213998959U

CN213998959U - A finishing device for a movable platen with a wheel shaft of a CVT gearbox

Info

Publication number: CN213998959U
Application number: CN202022611954.XU
Authority: CN
Inventors: 邹根根; 王嘉; 束斐
Original assignee: Wuxi Machine Tools Co Ltd
Current assignee: Wuxi Machine Tools Co Ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-08-20
Anticipated expiration: 2030-11-12

Abstract

The utility model provides a finishing device for a movable pressure plate with a pulley shaft of a CVT gearbox, which can solve the problem that the existing machining equipment has low efficiency in finishing the tooth groove of the movable pressure plate, the outer conical surface of the cap and the perforation. technical problem. The finishing device includes a workpiece conveying mechanism, a workpiece spindle, a tooth groove grinding mechanism, a perforation grinding mechanism and an outer cone surface grinding mechanism, and is characterized in that the workpiece spindle is installed at the output end of the vertical conveying mechanism, and the vertical conveying mechanism The mechanism is installed at the output end of the horizontal conveying mechanism, and the main shaft of the workpiece is installed with a clamp for clamping the cylindrical part of the movable platen; The conveying directions of the horizontal conveying mechanism are arranged in sequence. When the perforation grinding mechanism grinds the inner hole of the movable platen, the outer conical surface grinding mechanism can simultaneously grind the outer conical surface of the movable platen.

Description

Finish machining device for movable pressing plate of belt wheel shaft of CVT gearbox

Technical Field

The utility model relates to a CVT gearbox parts machine tooling technical field, concretely relates to finish machining device of movable clamp plate of band pulley axle of CVT gearbox.

Background

A movable pressure plate with (input and output) wheel shafts of a CVT gearbox is shown in figures 1 and 2 and comprises a conical cover cap P1 and a cylinder P2 connected to the lower end of the cover cap P1, and the movable pressure plate is provided with a step-shaped through hole penetrating through the cover cap P1 and the cylinder P2 in the axial direction, wherein the through hole is positioned on the cylinder P2 and is formed with a tooth socket P21. After the movable pressing plate is formed or roughly processed, the tooth grooves P21, the outer conical surface P11 of the cap P1 and the through hole P12 need to be finely processed. In the traditional machining, the movable pressing plate is subjected to finish machining through three different devices, and as the movable pressing plate needs to be repeatedly clamped, the positioning precision cannot be ensured, the finish machining quality is poor, and the machining efficiency is low; although the existing manufacturers also adopt a multi-axis machining center for machining, the machining efficiency still needs to be further improved although the finish machining quality can be ensured.

SUMMERY OF THE UTILITY MODEL

The utility model provides a band pulley shaft's of CVT gearbox activity clamp plate's finish machining device, it can solve current machining equipment and carry out the lower technical problem of finish machining's efficiency to the tooth's socket of activity clamp plate, the outer conical surface of block and perforation.

Its technical scheme is like, a finish machining device of movable clamp plate of band pulley axle of CVT gearbox, including work piece conveying mechanism, work piece main shaft, tooth's socket grinding mechanism, perforation grinding mechanism and outer conical surface grinding mechanism, its characterized in that:

the workpiece conveying mechanism comprises a conveying belt which performs rotary motion in a horizontal plane, the conveying belt is connected with a workpiece supporting base, and a movable pressing plate to be processed is supported on the workpiece supporting base in a vertical mode that a cover cap faces downwards;

the workpiece main shaft is arranged at the output end of the vertical conveying mechanism, the vertical conveying mechanism is arranged at the output end of the horizontal conveying mechanism, and the workpiece main shaft is provided with a clamp for clamping the cylinder part of the movable pressing plate;

the tooth socket grinding mechanism, the perforation grinding mechanism and the outer conical surface grinding mechanism are arranged below the horizontal conveying mechanism and are sequentially arranged along the conveying direction of the horizontal conveying mechanism, and when the perforation grinding mechanism carries out grinding machining on an inner hole of the movable pressing plate, the outer conical surface grinding mechanism can synchronously carry out grinding machining on the outer conical surface of the movable pressing plate.

Furthermore, the workpiece conveying mechanism is provided with a proximity switch and a limiting cylinder at a picking and placing station of the movable pressing plate, and a stop block is arranged at the end part of a movable cover of the limiting cylinder.

Furthermore, the workpiece supporting base is provided with a movable base plate and a fixed base plate, the periphery of the movable base plate is elastically connected with the fixed base plate through springs, the middle part of the movable base plate is in guide fit with the fixed base plate through a guide pillar, a U-shaped support is arranged below a picking and placing station of the movable pressing plate of the conveying mechanism, the U-shaped support is connected with a lifting cylinder and is in guide fit with a cylinder support, and the lifting cylinder is mounted on the cylinder support.

The utility model discloses a finish machining device to movable pressing plate's a clamping, can realize the continuous processing at the three position of work piece, need not to relapse the clamping, and positioning accuracy is high, and tooth's socket grinding mechanism, perforation grinding mechanism and outer conical surface grinding mechanism arrange along horizontal conveyor's direction of delivery in proper order moreover, and movable pressing plate's hole and outer conical surface can be processed in step, can effectively improve the machining efficiency of device.

Drawings

FIG. 1 is a schematic diagram of a first perspective view of a movable platen of a pulley shaft of a CVT transmission.

Fig. 2 is a second perspective structural view of a movable platen of a pulley shaft of a CVT transmission.

Fig. 3 is a schematic structural diagram of the present invention, wherein the workpiece spindle is located above the conveyer belt.

Fig. 4 is a schematic structural diagram of the present invention, wherein the workpiece spindle is located above the tooth space grinding mechanism.

Fig. 5 is a schematic structural diagram of the present invention, wherein the workpiece spindle is located above the piercing and grinding mechanism.

Fig. 6 is a schematic structural diagram of the workpiece conveying mechanism of the present invention.

Fig. 7 is a partially enlarged schematic structural view of the workpiece conveying mechanism of the present invention.

Detailed Description

As shown in fig. 3 to 7, a finishing device for a movable pressing plate with a wheel shaft of a CVT transmission comprises a workpiece conveying mechanism 10, a workpiece spindle 20, a tooth space grinding mechanism 50, a perforation grinding mechanism 60 and an external conical surface grinding mechanism 70, wherein the workpiece conveying mechanism 10 comprises a conveyer belt which performs rotary motion in a horizontal plane, the conveyer belt is connected with a workpiece supporting base, and the movable pressing plate P to be processed is supported on the workpiece supporting base in a vertical mode that a cap faces downwards;

the workpiece spindle 20 is mounted at the output end of the vertical conveying mechanism 30, the vertical conveying mechanism 30 is mounted at the output end of the horizontal conveying mechanism 40, the workpiece spindle 20 is provided with a clamp for clamping a cylinder part of a movable pressing plate, specifically, the vertical conveying mechanism comprises a vertical sliding table 31, a vertical sliding rail 32 mounted on a horizontal sliding table 41, a vertical screw-nut pair and a vertical servo motor, the vertical sliding table 31 is guided by the vertical sliding rail 32, is driven by the vertical screw-nut pair and is driven by the vertical servo motor, the horizontal conveying mechanism comprises a horizontal sliding table 41, a horizontal sliding rail 42 mounted on a rack, a horizontal screw-nut pair 43 and a horizontal servo motor, and the horizontal sliding table 41 is guided by the horizontal sliding rail 42, is driven by the horizontal screw-nut pair 43 and is driven by the horizontal servo motor;

the tooth groove grinding mechanism 50, the perforation grinding mechanism 60 and the outer conical surface grinding mechanism 70 are arranged below the horizontal conveying mechanism 40 and are sequentially arranged along the conveying direction of the horizontal conveying mechanism 40, and when the perforation grinding mechanism 60 grinds the inner hole of the movable pressing plate, the outer conical surface grinding mechanism 70 can synchronously grind the outer conical surface of the movable pressing plate.

A proximity switch 15 and a limiting cylinder 16 are arranged at a picking and placing station of the movable pressing plate of the workpiece conveying mechanism 10, a stop block is arranged at the end part of a movable cover of the limiting cylinder 16, when the workpiece supporting base reaches the picking and placing station, the proximity switch 15 senses the workpiece supporting base, a controller controls the conveying belt to stop running, and a piston rod of the limiting cylinder 16 extends out to fix the workpiece supporting base; specifically, the workpiece supporting base is provided with a fixed base plate 111 and a movable base plate 112, a positioning column matched with the movable pressing plate is arranged in the middle of the upper end face of the movable base plate 112, the lower end face of the movable base plate 112 is elastically connected with the fixed base plate 111 through a spring 113 and is matched with the fixed base plate through a guide column in a guiding mode, the conveying mechanism is located on the movable pressing plate, a U-shaped support 12 is arranged below a picking and placing station, conical positioning pins 121 matched with positioning blocks of the bottom wall of the fixed base plate are arranged at the tops of two side walls of the U-shaped support, the U-shaped support 12 is connected with a lifting cylinder 13 and is matched with a cylinder support 14 in a guiding mode, and the lifting cylinder 13 is installed on the cylinder support. After the workpiece spindle reaches the pick-and-place station, the lifting cylinder drives the U-shaped support 12 to ascend, firstly, the U-shaped support 12 is matched with the fixing base plate 111 of the workpiece supporting base in a positioning mode, then, the U-shaped support, the workpiece supporting base and the workpiece further ascend until the column part of the workpiece extends into a clamp of the workpiece spindle and is clamped and fixed by the clamp. In the process, the workpiece is clamped by the clamp after being lifted, and the movable base plate is elastically connected with the fixed base plate through the spring and is in guide fit through the guide pillar, so that the impact between the workpiece and the clamp can be reduced, the quality of the workpiece is ensured, and the service life of the clamp is prolonged.

Claims

1. the finishing device of the movable pressing plate of the pulley shaft of a CVT gearbox, comprises workpiece conveying mechanism, workpiece spindle, cogging grinding mechanism, perforation grinding mechanism and outer cone grinding mechanism, it is characterized in that:

The workpiece conveying mechanism includes a conveyor belt that rotates in a horizontal plane, the conveyor belt is connected to the workpiece support base, and the movable platen to be processed is supported on the workpiece support base in an upright manner with the cap facing down;

The workpiece spindle is installed at the output end of the vertical conveying mechanism, the vertical conveying mechanism is installed at the output end of the horizontal conveying mechanism, and the workpiece spindle is installed with a clamp for clamping the cylindrical portion of the movable platen;

The tooth groove grinding mechanism, the perforation grinding mechanism and the outer cone grinding mechanism are arranged below the horizontal conveying mechanism and are sequentially arranged along the conveying direction of the horizontal conveying mechanism. When grinding the inner hole of the movable pressure plate, the outer cone surface grinding mechanism can simultaneously grind the outer cone surface of the movable pressure plate.

2. The finishing device of the movable platen of the pulley shaft of a CVT gearbox according to claim 1, wherein the workpiece conveying mechanism is located at the pick-and-place station of the movable platen and is provided with a proximity switch and a limit cylinder, The end of the movable cover of the limiting cylinder is provided with a stopper.

3. the finishing device of the movable platen of the belt wheel shaft of a kind of CVT gearbox according to claim 1, is characterized in that: described workpiece support base is provided with movable base plate and fixed base plate, and the circumference of described movable base plate passes through The spring is elastically connected with the fixed base plate, and the middle part of the movable base plate is guided and matched with the fixed base plate through the guide post. The lifting cylinder is connected and guided and matched with the cylinder support, and the lifting cylinder is installed on the cylinder support.