CN209716903U - Floating cutter head camber rolling device - Google Patents

Abstract

A kind of floating cutter cambered surface rolling device, including shank portion, detection device, driving device and rolling cutter head, the driving device includes motor and shaft coupling, the motor is located at the lower section of sensor locating rack and is connect by bolt with sensor locating rack, and the motor shaft of the motor is arranged downward and is connected by key with the top of shaft coupling；The rolling cutter head includes transmission shaft, TPE thermoplastic elastomer (TPE), retainer and flexible cambered-surface milled head, the upper end of the transmission shaft and the lower part of shaft coupling are connected by key, the lower end of the transmission shaft is bolted with retainer, is provided with TPE thermoplastic elastomer (TPE) in the cavity that retainer and transmission shaft surround；The bottom of the retainer is equipped with to be mounted on corresponding mounting hole with the same number of mounting hole of flexible cambered-surface milled head, each flexible cambered-surface milled head.The utility model provides a kind of floating cutter cambered surface rolling device that can be processed effective for being directed to camber surface.

Description

Floating cutter head camber rolling device

technical field

The utility model relates to an arc surface rolling device of a floating cutter head.

Background technique

The camber rolling is a chip-free cold working method, and it is the application of continuous local plastic forming technology in surface finishing. Rolling is the continuous local plastic deformation of the surface of metal under the action of external pressure to improve and improve the final surface quality and performance of mechanical parts, and has the dual functions of smoothing and surface strengthening. The curved surface rolling tool can be processed on some surfaces that have radians and need to be rolled. The limit spring in the tool head is used to make the ball of the tool head close to the surface to be processed, and then the shaft of the motor rotates to drive the coupling to further Drive the cutter head to rotate, so as to achieve the purpose of rolling processing.

According to the survey, it is found that traditional rolling is mainly divided into the processing of plane parts and the processing of cylindrical parts. At present, the rolling processing of plane parts is mainly realized by clamping the rolling cutter head on the main shaft of the machine tool, and realizing the rotational movement of the rolling cutter head and the feed movement of the workpiece in the machining plane. When this traditional rolling tool processes a surface with a curved surface, due to the unevenness of the surface, the ball of the cutter head cannot fully contact the surface to be processed, which will cause uneven processing of the surface to be processed and damage to the surface finish. In some areas, there will be dense rolling trajectories, which will lead to thermal deformation in this area, so traditional rolling tools have great limitations on camber machining.

SUMMARY OF THE INVENTION

In order to solve the incompatibility of traditional rolling tools for uneven surfaces such as arc surfaces, the utility model provides a floating cutter head arc surface rolling device which can be effectively used for arc surface processing.

The technical scheme adopted by the utility model to solve its technical problems is:

A floating cutter head curved surface rolling device, comprising a handle part, a detection device, a driving device and a rolling cutter head, the handle part comprises a handle and a handle connecting block, the lower end of the handle is connected to the handle The upper end of the connecting block is connected by bolts;

The detection device includes four sensors for detecting pressure and a sensor positioning frame. The four sensors are located between the tool handle connecting block and the sensor positioning frame and are evenly distributed on the sensor positioning frame. The sensor positioning frame is passed through the limit bolts. Connect with the handle connection block;

The driving device includes a motor and a coupling, the motor is located below the sensor positioning frame and is connected with the sensor positioning frame by bolts, and the motor shaft of the motor is arranged downward and is connected with the upper part of the coupling through a key;

The rolling cutter head includes a transmission shaft, a TPE thermoplastic elastomer, a cage and a flexible arc surface rolling head. The upper end of the transmission shaft is connected with the lower part of the coupling through a key, and the lower end of the transmission shaft is connected with the cage. Through bolt connection, TPE thermoplastic elastomer is installed in the cavity enclosed by the cage and the drive shaft;

The bottom of the cage is provided with the same number of installation holes as the flexible curved surface rolling heads, more than three flexible curved surface rolling heads are arranged, each flexible curved surface rolling head is installed on the corresponding installation hole, and each flexible curved surface rolling head is installed on the corresponding installation hole. Each flexible arc-surface rolling head includes an installation sleeve, a sliding block, a limit spring, a fixing frame and a spherical ball. The installation sleeve is in an interference fit with the TPE thermoplastic elastomer. The lower part of the installation sleeve is provided with a slot, which is in The lower part of the slot is provided with an annular groove, the annular slot is communicated with the slot, the sliding block can be slid up and down and installed in the slot, the sliding block is provided with a limit protrusion, and the limit protrusion The height of the annular groove is greater than the height of the limiting protrusion, the bottom of the sliding block is provided with a spherical groove, and the spherical ball is installed in the spherical groove through the fixing frame, and is connected with the spherical groove. The through holes on the fixing frame correspond to the through holes, the fixing frame is threadedly connected with the sliding block, the spherical ball can be exposed from the through hole, the limit spring is located in the slot and its upper end is connected with the mounting sleeve, and its lower end is connected with the sliding block .

Further, there are three flexible arc surface rolling heads, and three mounting holes on the cage are also provided, one flexible arc surface rolling head is installed corresponding to one installation hole, and the three flexible arc surface rolling heads are evenly distributed. The spherical balls on the circumference of the transmission shaft and on it are all arranged to gather toward the transmission shaft.

The technical idea of the utility model is that the purpose of rolling processing on uneven surfaces such as arc surfaces can be achieved.

Starting from the shortcomings of traditional knives, a flexible cambered rolling head is designed. The flexible cambered rolling head is composed of a mounting sleeve, a limit spring, a sliding block, a spherical ball and a fixed frame. When working, it is ensured that each spherical ball can have sufficient contact with the surface to be processed, so as to avoid uneven processing and improve the processing quality of the surface. Moreover, in the present invention, the flexible curved surface rolling head is used as a modular element, and the number of flexible curved surface rolling heads in the tool can be appropriately increased or decreased according to the actual processing conditions, so that the tool can be suitable for a variety of different working conditions.

In order to solve the problem that traditional tools have strict requirements on the position of the machined surface, they can only be machined when they are fixed at a specified position. The utility model redesigns the shank part and the driving device of the tool, the shank part is designed to be installed on the mechanical arm to work, and can process various arc surfaces in different spatial positions. And the tool is no longer driven by the machine tool spindle to rotate, but by the motor in the driving device to drive the rolling tool to rotate, so as to perform normal work.

The detection device can detect the force in all directions of the tool in real time, and adjust the position of the tool according to the results, so that the tool head can process the surface to be machined, so that the rolling process can be more precise on the surface to be machined. proceed smoothly.

The beneficial effects of the utility model are mainly manifested in: the workpieces at different positions in the space can be rolled; the curved surfaces with uneven surfaces can be rolled; Adjust to make it work smoothly on the surface of the workpiece; the flexible arc rolling head is made into a modular device, and the number of flexible arc rolling heads in the tool can be appropriately increased or decreased according to the actual processing conditions, so that the The tool can be suitable for many different working conditions.

Description of drawings

Figure 1 is a cross-sectional view of the present invention.

Figure 2 is a cross-sectional view of a flexible curved surface rolling head.

Figure 3 is a schematic diagram of the utility model processing the surface of the workpiece.

Figure 4 is a bottom view of the rolling cutter head.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings.

Referring to Figures 1 to 4, a floating cutter head curved surface rolling device includes a handle part, a detection device, a driving device and a rolling cutter head, and the handle part includes a handle 6 and a handle connection block 7, The lower end of the handle 6 is connected with the upper end of the handle connecting block 7 by bolts;

The detection device includes four sensors 8 for detecting pressure and a sensor positioning frame 10. The four sensors 8 are located between the tool handle connecting block 7 and the sensor positioning frame 10 and are evenly distributed on the sensor positioning frame 10. The positioning frame 10 is connected with the tool handle connecting block 7 through the limit bolt 9;

The driving device includes a motor 11 and a coupling 12. The motor 11 is located below the sensor positioning frame 10 and is connected to the sensor positioning frame 10 by bolts. The motor shaft of the motor 11 is arranged downward and is connected to the coupling 12. The upper part is connected by a key;

The rolling cutter head includes a transmission shaft 13, a TPE thermoplastic elastomer 14, a cage 15 and a flexible curved surface rolling head 16. The upper end of the transmission shaft 13 is connected with the lower part of the coupling 12 by a key, and the transmission The lower end of the shaft 13 is connected with the cage 15 by bolts, and a TPE thermoplastic elastomer 14 is installed in the cavity enclosed by the cage 15 and the transmission shaft 13;

The bottom of the cage 15 is provided with the same number of installation holes as the flexible arc surface rolling heads 16, more than three flexible arc surface rolling heads 16 are provided, and each flexible arc surface rolling head 16 is installed in a corresponding installation. On the hole, each flexible curved surface rolling head 16 includes a mounting sleeve 1, a sliding block 3, a limit spring 2, a fixing frame 5 and a spherical ball 4, and the mounting sleeve 1 is an interference fit with the TPE thermoplastic elastomer 14, The lower part of the mounting sleeve 1 is provided with a slot, and the lower part of the slot is provided with an annular slot, the annular slot communicates with the slot, and the sliding block 3 can be slid up and down and installed in the slot. The sliding block 3 is provided with a limiting protrusion, the limiting protrusion is located in the annular groove, the height of the annular groove is greater than the height of the limiting protrusion, the bottom of the sliding block 3 is provided with a spherical groove, the The spherical ball 4 is installed in the spherical groove through the fixing frame 5, and corresponds to the through hole on the fixing frame 5. The fixing frame is threadedly connected with the sliding block, and the spherical ball 4 can emerge from the through hole. The position spring 2 is located in the slot, and its upper end is connected with the mounting sleeve 1 , and its lower end is connected with the sliding block 3 .

Further, there are three flexible arc surface rolling heads 16, and three mounting holes on the cage 15 are also provided, one flexible arc surface rolling head 16 is installed corresponding to one installation hole, and three flexible arc surface rolling The heads are evenly distributed on the circumference of the transmission shaft, and the spherical balls on it are all arranged to gather toward the transmission shaft 13 .

In this embodiment, the sensor 8 is connected with the sensor positioning frame 10 by bolts, and the sensor is used to detect the force of the tool on the machining surface from four directions when the tool is machining, and adjust the force according to the force in different directions. Tool position, to keep the force between the tool head at different positions and the machined surface consistent, used to detect pressure. The TPE thermoplastic elastomer 14 is installed inside the drive shaft 13 and the cage 15 , and then the flexible arc rolling head 16 is installed at the corresponding position of the cutter head position cage 15 . The mounting sleeve 1 and the TPE thermoplastic elastomer 14 are connected by an interference fit, and the flexible arc rolling head is kept at a fixed position by a retainer. The diameter of the mounting hole of the holder 15 is larger than the outer diameter of the through hole of the fixing frame 5 , and smaller than the outer diameter of the slot of the mounting sleeve 1 . The diameter of the through hole on the fixing frame 5 is greater than or equal to the outer diameter of the spherical ball.

The entire detection device is connected with the tool shank part through the limit bolt 9. The sensors in the detection device are distributed and arranged, so that the tool head can work more smoothly on the surface to be machined.

The entire drive device is connected with the detection device through bolts, and is connected with the rolling cutter head through keys. This driving device enables the device to work apart from the machine tool, and the motor drives the cutter head to rotate for processing.

There is an annular groove inside the installation sleeve 1 for installing the sliding block 3 so that it can slide up and down in the installation sleeve 1 , and a limiting spring 2 is installed between the installation sleeve 1 and the sliding block 3 . The spherical groove on the sliding block 3 is used to install the spherical ball 4, and then the spherical ball 4 is fixed by the fixing frame 5 so that it will not fall off. The flexible cambered rolling head 16 is a modular element, and the number of the flexible cambered rolling heads 16 in the tool can be appropriately increased or decreased according to the actual processing conditions, so that the tool can be suitable for various working conditions.

When the flexible arc surface rolling head 16 is working, when the cutter head contacts the arc surface, the convex surface will squeeze the spherical ball 4, which will cause the sliding block 3 to squeeze the limit spring 2, so that the flexible arc surface rolling head 16 is in the middle. The spherical balls 4 are retracted, and the concave surface will make the limit spring 2 stretch, so that the spherical balls 4 fully contact the surface to be processed, which can make the flexible arc surface rolling head 16 work to ensure that each spherical ball 4 can be It has sufficient contact with the surface to be processed to avoid uneven processing and improve the processing quality of the surface.

Claims (2)

1. a kind of floating cutter cambered surface rolling device, it is characterised in that: including shank portion, detection device, driving device and rolling Push type broach head, the shank portion include knife handle and knife handle link block, and the lower end of the knife handle and the upper end of knife handle link block pass through It is bolted；

The detection device includes four for detecting the sensor and sensor locating rack of pressure, and four sensors are located at knife handle Between link block and sensor locating rack and be evenly arranged on sensor locating rack, the sensor locating rack by caging bolt with The connection of knife handle link block；

The driving device includes motor and shaft coupling, and the motor is located at the lower section of sensor locating rack and by bolt and biography The connection of sensor locating rack, the motor shaft of the motor are arranged downward and are connected by key with the top of shaft coupling；

The rolling cutter head includes transmission shaft, TPE thermoplastic elastomer (TPE), retainer and flexible cambered-surface milled head, the transmission shaft Upper end and the lower part of shaft coupling be connected by key, lower end and the retainer of the transmission shaft are bolted, in retainer TPE thermoplastic elastomer (TPE) is provided with the cavity that transmission shaft surrounds；

The bottom of the retainer is equipped with and the same number of mounting hole of flexible cambered-surface milled head, the setting of flexible cambered-surface milled head Three or more, each flexible cambered-surface milled head is mounted on corresponding mounting hole, and each flexible cambered-surface milled head includes installation Set, sliding shoe, limit spring, fixed frame and spherical ball, the installation set and TPE thermoplastic elastomer (TPE) are interference fitted, described The lower part of installation set is equipped with fluting, is equipped with annular groove in the lower part of the fluting, the annular groove is connected to fluting, the sliding Block, which can slide up and down, to be mounted in fluting, and the sliding shoe is equipped with retention bead, and the retention bead is located in annular groove, The height of the annular groove is greater than the height of retention bead, and the bottom of the sliding shoe is equipped with spherical groove, the spherical ball It is mounted on the inside of spherical groove by fixed frame, and corresponding with the through-hole on fixed frame, the fixed frame and sliding shoe screw thread Connection, spherical ball can appear out of through-hole, and the limit spring is located in fluting and the upper end is connect with installation set, lower end It is connect with sliding shoe.

2. floating cutter cambered surface rolling device as described in claim 1, it is characterised in that: the flexible cambered-surface milled head is equipped with Three, there are three the mounting hole on the retainer is also provided with, the corresponding mounting hole installation of a flexible cambered-surface milled head, three A flexible cambered-surface milled head is evenly arranged on one week of transmission shaft and spherical ball thereon gathers arrangement to transmission shaft.