CN111410412A

CN111410412A - Cutter driving mechanism

Info

Publication number: CN111410412A
Application number: CN202010346328.4A
Authority: CN
Inventors: 蔡学通; 王武江
Original assignee: Shenzhen Huasheng Automation Equipment Co ltd
Current assignee: Shenzhen Huasheng Automation Equipment Co ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-07-14

Abstract

The invention relates to the technical field of cutting equipment, and discloses a cutter driving mechanism which comprises a shell, a main shaft, an air bag, a transmission part, a conducting ring, a pin shaft, a detection circuit, an insulating ring, a shaft sleeve, a first bearing, a cutter mounting part, a first driving mechanism and a second driving mechanism, wherein the main shaft is arranged on the shell; by adopting the cutter driving mechanism provided by the invention, the longitudinal displacement of the cutter is controlled by the first driving mechanism so that the cutter can adapt to glass products with different heights and shapes, the angle of the cutter is controlled by the second driving mechanism so that the cutter can cut special-shaped glass, the cutting depth is accurately controlled by the matching of the detection circuit and the first driving mechanism, and finally, a longitudinal downward acting force is indirectly applied to the cutter by the air bag so as to finish the cutting of the glass; the cut glass product has regular cut and no phenomenon of continuous cutting or insufficient cutting depth.

Description

Cutter driving mechanism

Technical Field

The invention relates to the technical field of cutting equipment, in particular to a cutter driving mechanism.

Background

Along with the development of scientific technology, the types of glass are more and more, and the development of the glass is more and more rapid. The glass needs to be subjected to a plurality of processes in the production process, and the cutting of the glass is an extremely important link in the plurality of processes. Most of the traditional glass cutting is manual cutting, so that the cutting efficiency is low, the cutting quality is poor, and a large amount of labor force is wasted; nowadays, a special glass cutting machine is generally used for cutting glass.

In the prior art, a glass cutting machine mostly cuts glass through a cutter, and the difficulty of the glass cutting machine is that the cutting depth is difficult to control accurately. For cutting glass with different thicknesses, the phenomenon that the cutting depth is too shallow or the glass product is damaged due to too deep cutting always occurs; therefore, it is very important to develop a glass cutting mechanism capable of precisely controlling the cutting depth.

Disclosure of Invention

The invention aims to provide a cutter driving mechanism, and aims to solve the problem that the depth of cut glass cannot be accurately controlled when the glass is cut in the prior art.

The invention is realized in that the cutter driving mechanism comprises

The shell is provided with a containing cavity with a downward opening;

a main shaft extending longitudinally, the main shaft disposed within the receiving cavity;

the air bag is arranged in the accommodating cavity and is positioned above the main shaft, and when air is ventilated into the air bag, the air bag presses the main shaft to drive the main shaft to move downwards;

the transmission piece is made of an insulating material and provided with a first through hole extending longitudinally, and the spindle is movably embedded into the first through hole;

the top surface of the conducting ring is abutted against the bottom surface of the transmission part, the conducting ring is fixedly connected with the transmission part, a second through hole extending longitudinally is formed in a surrounding mode of the conducting ring, the second through hole and the first through hole are coaxially arranged in a right-to-left mode, and the spindle is movably embedded into the second through hole;

the pin shaft is made of a conductive material, the transmission part is provided with a limiting notch extending longitudinally, the main shaft is provided with a third through hole extending radially, the pin shaft simultaneously penetrates through the third through hole and the limiting notch, and the lower part of the limiting notch is communicated with the upper end face of the conductive ring;

one end of the detection circuit is electrically connected with the conducting ring, and the other end of the detection circuit is electrically connected with the pin shaft; when the conductive pin shaft contacts the conductive ring, the detection circuit is connected, otherwise, the detection circuit is disconnected;

the top surface of the insulating ring is abutted to the conducting ring, the insulating ring is fixedly connected with the conducting ring, a longitudinally extending fourth through hole is formed in the insulating ring in a surrounding mode, the fourth through hole and the second through hole are coaxially arranged in a facing mode, and the main shaft is movably embedded into the fourth through hole;

the shaft sleeve is connected with the insulating ring, a fifth through hole extending longitudinally is formed in the shaft sleeve in a surrounding mode, the fifth through hole and the fourth through hole are coaxially arranged in a right-to-front mode, and the main shaft is movably embedded into the fifth through hole;

the bearing comprises an inner ring and an outer ring, the outer ring is fixedly connected with the shell, and the inner ring is fixedly sleeved on the periphery of the shaft sleeve;

the cutter mounting piece is used for mounting a cutter and is fixedly connected with the lower end of the main shaft;

the first driving mechanism is in transmission connection with the shell and is used for driving the shell to move longitudinally;

and the second driving mechanism is in transmission connection with the shaft sleeve and is used for driving the shaft sleeve to rotate by taking the central shaft of the shaft sleeve as a rotating shaft.

Furthermore, the shell is provided with an insulating seat, the insulating seat is provided with a sixth through hole extending horizontally, the sixth through hole is communicated with the accommodating cavity and the outer wall of the shell, and the sixth through hole is arranged opposite to the conducting ring; and a spring and a steel ball are arranged in the sixth through hole, one side of the spring is fixed in the sixth through hole, the other side of the spring is abutted against the steel ball, and the steel ball is abutted against the conducting ring.

Furthermore, a bearing cover and a second bearing are arranged in the shell; the bearing cover is arranged on the upper portion of the main shaft in a covering mode, the outer ring of the second bearing is abutted to the bearing cover, and the inner ring of the second bearing is abutted to the outer wall of the main shaft.

Further, the first driving mechanism comprises a first power element, a first driving wheel, a first driven wheel, a first synchronous belt, a longitudinally extending screw rod and a moving nut; the output shaft of the first power element is connected with the first driving wheel, the first driving wheel and the first driven wheel are oppositely arranged, the first synchronous belt is sleeved on the first driving wheel and the first driven wheel, the first driven wheel is connected with the lead screw, the movable nut is in threaded connection with the lead screw, and the movable nut is fixedly connected with the shell.

Further, the tool drive mechanism further comprises a longitudinally extending guide rail and a mount; the guide rail comprises a fixing part and a sliding part, the fixing part is fixed on the mounting part, and the sliding part is fixedly connected with the shell.

Further, the second driving mechanism comprises a second power element, a second driving wheel, a second driven wheel and a second synchronous belt; the output shaft of the second power element is connected with the second driving wheel, the second driven wheel is arranged opposite to the second driving wheel, the second synchronous belt is sleeved on the second driving wheel and the second driven wheel, the second driven wheel is provided with a seventh through hole extending longitudinally, and the second driven wheel is sleeved on the shaft sleeve.

Furthermore, a locking piece is arranged in the accommodating cavity of the shell and fixed at the lower part of the insulating ring, a first threaded hole is formed in the locking piece in a hollow mode, threads are arranged on the periphery of the shaft sleeve, and the shaft sleeve is in threaded connection with the locking piece; the lateral wall of casing has the eighth through-hole, second screw hole has on the retaining member, the eighth through-hole with the second screw hole is just to arranging, the eighth through-hole with the second screw hole is used for construction bolt.

Further, the cutter driving mechanism further comprises a visual alignment camera, and the visual alignment camera is used for reading the image data of the product.

Further, the cutter driving mechanism further comprises a first position sensor for detecting a longitudinal initial position of the cutter, and the position sensor is arranged opposite to the housing.

Further, the cutter driving mechanism further comprises a second position sensor used for detecting the initial rotation angle of the cutter, the second driven wheel is provided with a blind hole extending in the radial direction, and when the cutter rotates in the initial rotation angle, the second position sensor is arranged opposite to the blind hole.

Compared with the prior art, the cutter driving mechanism provided by the invention is mainly used for cutting glass products, and the steps of cutting the glass by using the cutter driving mechanism are as follows: the cutter mounting part is provided with a cutter, the first driving mechanism drives the shell to move longitudinally downwards so that the cutter is in contact with glass to be cut, at the moment, the cutter driving mechanism acquires information of the contact between the cutter and the glass to be cut, the cutter driving mechanism transmits the information to the first driving mechanism, the first driving mechanism receives the information and then drives the shell to move longitudinally downwards for a certain distance, and the certain distance is called as cutting depth; finally, the cutter driving mechanism drives the cutter on the cutter mounting piece to cut the glass to be cut; in the process, the second driving mechanism can drive the cutter to rotate for a certain angle so as to cut the glass with different shapes; further, the specific structure of the tool driving mechanism is described as follows: the pin shaft penetrates through the first through hole of the main shaft and the second through hole of the transmission part, the conducting ring is fixed below the transmission part, under the action of the gravity of the main shaft, the pin shaft is abutted against the upper surface of the conducting ring, namely the conducting ring supports the main shaft through the pin shaft, and the conducting ring and the pin shaft are connected with a detection circuit to form a closed loop, so that the conducting ring and the pin shaft form a passage; when the cutter contacts the glass to be cut, the main shaft moves upwards relative to the conducting ring due to the supporting effect of the glass to be cut, the pin shaft is separated from the contact surface of the conducting ring at the moment, the conducting ring and a detection circuit connected with the pin shaft are disconnected, at the moment, the first driving mechanism reads a signal of the disconnected detection circuit, and the first driving mechanism drives the shell to move downwards longitudinally again; when the cutting depth is adjusted by the first driving mechanism, gas is supplied to the air bag, the air bag starts to expand, so that the air bag exerts a longitudinal downward acting force on the main shaft, the main shaft moves downward for a certain depth under the acting force of the air bag, the depth is the cutting depth, when the pin shaft is in contact with the conducting ring again, the main shaft stops moving downward, and the air bag continuously exerts the acting force on the main shaft until the cutting is finished; when the cutter needs to adjust the angle for cutting, the second driving mechanism drives the shaft sleeve to rotate, the shaft sleeve is matched with the inner ring of the first bearing, so that the shaft sleeve can rotate in the accommodating cavity; by adopting the cutter driving mechanism provided by the embodiment, the longitudinal displacement of the cutter is controlled by the first driving mechanism so that the cutter can adapt to glass products with different heights and shapes, the angle of the cutter is controlled by the second driving mechanism so that the cutter can cut the special-shaped glass, the cutting depth is accurately controlled by the matching of the detection circuit and the first driving mechanism, and finally, the longitudinal downward acting force is indirectly applied to the cutter by the air bag so as to finish the cutting of the glass; the cut glass product has regular cut and no phenomenon of continuous cutting or insufficient cutting depth.

Drawings

FIG. 1 is a perspective view of a tool drive mechanism provided by an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the internal structure of the housing provided by an embodiment of the present invention;

FIG. 3 is an exploded view of the internal structure of the housing provided by the embodiment of the present invention;

FIG. 4 is a block diagram of a first drive mechanism provided in an embodiment of the present invention;

FIG. 5 is a block diagram of a second drive mechanism provided in an embodiment of the present invention;

FIG. 6 is an assembly view of the spindle, the driving member, the pin and the conductive ring according to the embodiment of the present invention;

FIG. 7 is an exploded view of the driving member, the pin and the conductive ring according to the embodiment of the invention.

Reference numerals: 1-a first drive mechanism, 2-a tool mount, 4-a second drive mechanism, 5-a second position sensor, 6-a first position sensor, 7-a vision alignment camera, 101-a first drive wheel, 102-a first synchronous belt, 103-a first driven wheel, 104-a moving nut, 105-a screw rod, 106-a first power element, 301-a housing, 302-a second bearing, 303-a transmission member, 304-an insulating ring, 305-a first bearing, 306-an air bag, 307-a bearing cover, 308-a conductive ring, 309-a locking member, 310-a shaft sleeve, 311-a main shaft, 312-a pin shaft, 313-an insulating seat, 401-a second driven wheel, 402-a second synchronous belt, 403-a second power element, 404-a second drive wheel, 3031-first through hole, 3032-limit notch, 3081-second through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

The following describes the implementation of the present invention in detail with reference to specific embodiments.

Referring to FIG. 1, a preferred embodiment of the present invention is provided.

A cutter driving mechanism comprises

A housing 301, wherein the housing 301 is provided with a containing cavity with a downward opening;

a main shaft 311, the main shaft 311 extends longitudinally, and the main shaft 311 is arranged in the accommodating cavity;

the air bag 306 is arranged in the accommodating cavity, the air bag 306 is positioned above the main shaft 311, and when air is supplied into the air bag 306, the air bag 306 presses the main shaft 311 to drive the main shaft 311 to move downwards;

the transmission piece 303, the transmission piece 303 is made of insulating material, the transmission piece 303 has the first through hole 3031 extending longitudinally, the main shaft 311 is embedded in the first through hole 3031 movably;

the top surface of the conductive ring 308 abuts against the bottom surface of the transmission member 303, the conductive ring 308 is fixedly connected with the transmission member 303, a second through hole 3081 extending longitudinally is formed by the conductive ring 308 in a surrounding manner, the second through hole 3081 is coaxially and oppositely arranged with the first through hole 3031, and the main shaft 311 is movably embedded into the second through hole 3081;

the pin shaft 312 is made of a conductive material, the transmission piece 303 is provided with a limit notch 3032 extending longitudinally, the main shaft 311 is provided with a third through hole extending radially, the pin shaft 312 simultaneously penetrates through the third through hole and the limit notch 3032, and the lower part of the limit notch 3032 is communicated with the upper end surface of the conductive ring 308;

one end of the detection circuit is electrically connected with the conductive ring 308, and the other end of the detection circuit is electrically connected with the pin shaft 312; when the conductive pin 312 contacts the conductive ring 308, the detection circuit is connected, otherwise, the detection circuit is disconnected;

the top surface of the insulating ring 304 is abutted to the conductive ring 308, the insulating ring 304 is fixedly connected with the conductive ring 308, a longitudinally extending fourth through hole is formed by surrounding the insulating ring 304, the fourth through hole is coaxially and oppositely arranged with the second through hole 3081, and the main shaft 311 is movably embedded into the fourth through hole;

the shaft sleeve 310 is connected with the insulating ring 304, a longitudinally extending fifth through hole is formed by enclosing the shaft sleeve 310, the fifth through hole and the fourth through hole are coaxially and oppositely arranged, and the main shaft 311 is movably embedded into the fifth through hole;

a first bearing 305, wherein the bearing comprises an inner ring and an outer ring, the outer ring is fixedly connected with the shell 301, and the inner ring is fixedly sleeved on the periphery of the shaft sleeve 310;

the tool mounting piece 2 is used for mounting a tool, and the tool mounting piece 2 is fixedly connected with the lower end of the main shaft 311;

the first driving mechanism 1 is in transmission connection with the shell 301, and the first driving mechanism 1 is used for driving the shell 301 to move longitudinally;

and the second driving mechanism 4 is in transmission connection with the shaft sleeve 310, and the second driving mechanism 4 is used for driving the shaft sleeve 310 to rotate by taking the central shaft thereof as a rotating shaft.

The cutter driving mechanism is mainly used for cutting glass products, and the steps of cutting the glass by using the cutter driving mechanism are as follows: the cutter is assembled on the cutter mounting part 2, the first driving mechanism 1 drives the shell 301 to move longitudinally downwards so that the cutter is in contact with the glass to be cut, at the moment, the cutter driving mechanism obtains information of the contact between the cutter and the glass to be cut, the cutter driving mechanism transmits the information to the first driving mechanism 1, the first driving mechanism 1 receives the information and then drives the shell to move longitudinally downwards for a certain distance, and the certain distance is called as cutting depth; finally, the cutter driving mechanism drives the cutter on the cutter mounting piece 2 to cut the glass to be cut; in the process, the second driving mechanism 4 can drive the cutter to rotate for a certain angle so as to cut the glass with different shapes.

Further, the specific structure of the tool driving mechanism is described as follows: the pin shaft 312 is arranged in the first through hole 3031 of the main shaft 311 and the second through hole 3081 of the transmission member 303 in a penetrating manner, the conductive ring 308 is fixed below the transmission member 303, due to the gravity of the main shaft 311, the pin shaft 312 is abutted against the upper surface of the conductive ring 308, namely, the conductive ring 308 supports the main shaft 311 through the pin shaft 312, and the conductive ring 308 and the pin shaft 312 are connected with a detection circuit to form a closed loop, so that the conductive ring 308 and the pin shaft 312 form a passage; when the cutter contacts the glass to be cut, due to the supporting effect of the glass to be cut, the main shaft 311 moves upwards relative to the conductive ring 308, at this time, the pin shaft 312 leaves the contact surface of the conductive ring 308, the detection circuit connected with the conductive ring 308 and the pin shaft 312 is disconnected, at this time, the first driving mechanism 1 reads a signal of the open circuit of the detection circuit, and the first driving mechanism 1 drives the shell 301 to move longitudinally downwards again; after the cutting depth is adjusted by the first driving mechanism 1, the air bag 306 is inflated by gas, so that the air bag 306 starts to expand to enable the air bag 306 to exert a longitudinal downward acting force on the main shaft 311, the main shaft 311 moves downward under the acting force of the air bag 306 for a certain depth, the depth is the cutting depth, when the pin shaft 312 is in contact with the conductive ring 308 again, the main shaft 311 stops moving downward, and the air bag 306 continuously exerts the acting force on the main shaft 311 until the cutting is completed; when the cutter needs to adjust the angle for cutting, the second driving mechanism 4 drives the shaft sleeve 310 to rotate, the shaft sleeve 310 is matched with the inner ring of the first bearing 305, so the shaft sleeve 310 can rotate in the accommodating cavity, in addition, the shaft sleeve 310 is sequentially connected with the insulating ring 304, the conductive ring 308 and the transmission member 303, so the shaft sleeve 310 drives the transmission member 303 to rotate, the pin shaft 312 is arranged in the first through hole 3031 of the main shaft 311 and the second through hole 3081 of the transmission member 303 in a penetrating manner, and the main shaft 311 rotates along with the rotation of the shaft sleeve 310, so that the cutter is driven to rotate.

By adopting the cutter driving mechanism provided by the embodiment, the longitudinal displacement of the cutter is controlled by the first driving mechanism 1 so that the cutter can adapt to glass products with different heights and shapes, the angle of the cutter is controlled by the second driving mechanism 4 so that the cutter can cut the special-shaped glass, the cutting depth is accurately controlled by the matching of the detection circuit and the first driving mechanism 1, and finally, the longitudinal downward acting force is indirectly applied to the cutter by the air bag 306 so as to complete the cutting of the glass; the cut glass product has regular cut and no phenomenon of continuous cutting or insufficient cutting depth.

Specifically, the shell 301 is provided with an insulating seat 313, the insulating seat 313 is provided with a sixth through hole extending horizontally, the sixth through hole is communicated with the accommodating cavity and the outer wall of the shell 301, and the sixth through hole is arranged opposite to the conductive ring 308; a spring and a steel ball are arranged in the sixth through hole, one side of the spring is fixed in the sixth through hole, the other side of the spring is abutted against the steel ball, and the steel ball is abutted against the conducting ring 308; because the conducting ring 308 needs to rotate during the operation of the cutter driving mechanism, in order to better connect the conducting ring 308 with the detection circuit, the matching of the spring and the steel ball is adopted, and the steel ball is always in contact with the conducting ring 308 under the action of the spring in the rotating process of the conducting ring 308, so that the detection circuit is connected by the spring, it needs to be explained that the pin shaft 312 is conducted with the main shaft 311, the main shaft 311 is sequentially conducted with the shaft sleeve 310 and the shell 301, and therefore, an interface at one end of the pin shaft 312 can be connected to any position of the shell 301.

In order to reduce the damage of the rotation of the main shaft 311 to the air bag 306, a bearing cover 307 and a second bearing 302 are further arranged in the shell 301; the bearing cover 307 is covered on the upper part of the main shaft 311, the outer ring of the second bearing 302 is abutted with the bearing cover 307, and the inner ring of the second bearing 302 is abutted with the outer wall of the main shaft 311; the second bearing 302 can be an angular contact ball bearing with large axial bearing force or other bearings; when the air bag 306 expands, a force is applied to the bearing cap 307, and the bearing cap 307 is transmitted to the main shaft 311 through the second bearing 302.

In this embodiment, the first driving mechanism 1 includes a first power element 106, a first driving pulley 101, a first driven pulley 103, a first timing belt 102, a longitudinally extending lead screw 105, and a moving nut 104; an output shaft of the first power element 106 is connected with the first driving wheel 101, the first driving wheel 101 is arranged opposite to the first driven wheel 103, the first synchronous belt 102 is sleeved on the first driving wheel 101 and the first driven wheel 103, the first driven wheel 103 is connected with the screw rod 105, the movable nut 104 is in threaded connection with the screw rod 105, and the movable nut 104 is fixedly connected with the shell 301; the first power element 106 drives the first driving wheel 101 to rotate, the first driving wheel 101 drives the first driven wheel 103 matched with the first driving wheel to rotate under the action of the first synchronous belt 102, the first driven wheel 103 drives the screw rod 105 connected with the first driven wheel to rotate, the screw rod 105 enables the moving nut 104 in threaded connection with the screw rod 105 to do linear motion on the screw rod 105, and the moving nut 104 drives the shell 301 to do longitudinal linear motion, so that the cutter mounting piece 2 is driven to do longitudinal motion. In this embodiment, the first power element 106 is a servo motor. It should be added that the first driving mechanism 1 can be a hydraulic cylinder, an air cylinder or a structure in which a linear motor directly drives the housing 301 to move longitudinally; the transmission structure of the combination of the first driving wheel 101, the first driven wheel 103 and the first synchronous belt 102 can also be replaced by a gear transmission structure or other transmission structures.

Preferably, the tool drive mechanism further comprises a longitudinally extending guide rail and a mount; the guide rail comprises a fixed part and a sliding part, the fixed part is fixed on the mounting part, and the sliding part is fixedly connected with the shell 301; the longitudinal movement of the shell 301 is guided by the guide rail, so that the longitudinal movement of the shell 301 is more stable, and the bearing effect can be achieved; the present embodiment is not limited to the structure of the guide rail.

In the present embodiment, the second driving mechanism 4 includes a second power element 403, a second driving pulley 404, a second driven pulley 401, and a second timing belt 402; an output shaft of the second power element 403 is connected with a second driving wheel 404, a second driven wheel 401 is arranged opposite to the second driving wheel 404, a second synchronous belt 402 is sleeved on the second driving wheel 404 and the second driven wheel 401, the second driven wheel 401 is provided with a seventh through hole extending longitudinally, and the second driven wheel 401 is sleeved on the shaft sleeve 310; the second power element 403 drives the second driving wheel 404 connected to the output shaft thereof to rotate, the second driving wheel 404 drives the second driven wheel 401 to rotate under the action of the second synchronous belt 402, the second driven wheel 401 drives the shaft sleeve 310 to rotate, and finally the cutter is driven to rotate. It should be added that, in the present embodiment, the second power element 403 is a servo motor; it should be noted that the transmission structure of the combination of the second driving pulley 404, the second driven pulley 401 and the second synchronous belt 402 can be replaced by a gear transmission structure or other transmission structures.

Furthermore, a locking member 309 is arranged in the accommodating cavity of the shell 301, the locking member 309 is fixed at the lower part of the insulating ring 304, the locking member 309 is hollow to form a first threaded hole, the periphery of the shaft sleeve 310 is provided with threads, and the shaft sleeve 310 is in threaded connection with the locking member 309; the side wall of the shell 301 is provided with an eighth through hole, the locking piece 309 is provided with a second threaded hole, the eighth through hole and the second threaded hole are arranged in a right-to-right mode, and the eighth through hole and the second threaded hole are used for installing a bolt; the shaft sleeve 310 is fixed by the locking piece 309, so that the assembly is more convenient, and the processing cost is lower; furthermore, in order to prevent the conductive ring 308 or the parts connected to the conductive ring 308 from floating during the cutting process of the main shaft 311, the structure of the locking member 309 and the bolt is adopted, and the bolt is fixed in the second threaded hole through the fifth through hole, so that the displacement of the locking member 309 can be limited, and the insulating ring 304, the conductive ring 308 and other parts connected to the locking member 309 can be limited.

In this embodiment, the tool driving mechanism further includes a vision alignment camera 7, and the vision alignment camera 7 is configured to read image data of a product; preferably, the visual alignment camera 7 is a CCD camera. The CCD camera comprises a CCD chip, a driving circuit, a signal processing circuit, an electronic interface circuit and an optical mechanical interface; the CCD chip mainly realizes the functions of conversion, storage, transfer, output and the like of the photoelectric charge under the action of the driving pulse; the driving circuit comprises a crystal oscillator, a time sequence signal generator and a vertical driver, and mainly provides pulse driving signals required by the CCD, and simultaneously provides pulse signals of clamping, composite synchronization, composite blanking, sampling/holding and the like for the signal processing circuit; the signal processing circuit is used for finishing functions of AGC, video signal synthesis, A/D conversion and the like of output signals of the CCD camera, and the output signals of the CCD camera are input into the signal processing circuit and are converted into required signals to be output after signal processing; the interface circuit is used for converting a control signal from the outside into a corresponding camera control signal and feeding the camera control signal back to the time sequence generating circuit and the signal processing circuit so as to effectively control the working state of the camera, and meanwhile, the interface circuit can also output various driving time sequences generated by the time sequence generator so as to be used for controlling image acquisition by the image acquisition system; the mechanical optical interface is used for providing mechanical connection with various optical lenses of the CCD camera, so that the optical system is coupled with the CCD.

Specifically, the tool driving mechanism further includes a first position sensor 6 for detecting a longitudinal initial position of the tool, the position sensor being disposed opposite to the housing 301; the outer wall of the shell 301 is provided with a characteristic position, such as a through hole, when the cutter is in the initial position, the first position sensor 6 is opposite to the characteristic position, so that the longitudinal initial position of the cutter driving mechanism after the operation is finished each time can be kept unchanged; note that the first position sensor is a 6-bit laser sensor. When the laser sensor works, the laser emitting diode firstly emits laser pulses aiming at a target, and the laser is scattered to all directions after being reflected by the target. Part of the scattered light returns to the sensor receiver, is received by the optical system and is imaged onto the avalanche photodiode. The avalanche photodiode is an optical sensor with an amplification function inside, so that the avalanche photodiode can detect an extremely weak optical signal and convert the extremely weak optical signal into a corresponding electrical signal, thereby judging whether the optical signal is an initial position or not according to the distance from the sensor to a characteristic bit.

Specifically, the cutter driving mechanism further comprises a second position sensor 5 for detecting the initial rotation angle of the cutter, the second driven wheel 401 has a blind hole extending radially, and when the cutter is at the initial rotation angle, the second position sensor 5 is arranged opposite to the blind hole; therefore, the angle initial position of the cutter can be kept unchanged after the cutter driving mechanism finishes working each time; the second position sensor 5 is a laser sensor, and its basic principle is the same as that of the first position sensor 6 described above.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A cutter driving mechanism is characterized by comprising

The shell is provided with a containing cavity with a downward opening;

2. The cutter driving mechanism according to claim 1, wherein the housing is provided with an insulating base, the insulating base is provided with a sixth through hole extending horizontally, the sixth through hole is communicated with the accommodating cavity and the outer wall of the housing, and the sixth through hole is arranged opposite to the conductive ring; and a spring and a steel ball are arranged in the sixth through hole, one side of the spring is fixed in the sixth through hole, the other side of the spring is abutted against the steel ball, and the steel ball is abutted against the conducting ring.

3. The cutter drive mechanism of claim 1, wherein a bearing cap and a second bearing are further provided in said housing; the bearing cover is arranged on the upper portion of the main shaft in a covering mode, the outer ring of the second bearing is abutted to the bearing cover, and the inner ring of the second bearing is abutted to the outer wall of the main shaft.

4. The tool driving mechanism of claim 1, wherein the first driving mechanism comprises a first power element, a first driving wheel, a first driven wheel, a first timing belt, a longitudinally extending lead screw, and a traveling nut; the output shaft of the first power element is connected with the first driving wheel, the first driving wheel and the first driven wheel are oppositely arranged, the first synchronous belt is sleeved on the first driving wheel and the first driven wheel, the first driven wheel is connected with the lead screw, the movable nut is in threaded connection with the lead screw, and the movable nut is fixedly connected with the shell.

5. The tool drive mechanism of claim 4, further comprising a longitudinally extending guide track and a mounting member; the guide rail comprises a fixing part and a sliding part, the fixing part is fixed on the mounting part, and the sliding part is fixedly connected with the shell.

6. The tool driving mechanism of claim 1, wherein the secondary driving mechanism comprises a secondary power element, a secondary driving pulley, a secondary driven pulley, and a secondary timing belt; the output shaft of the second power element is connected with the second driving wheel, the second driven wheel is arranged opposite to the second driving wheel, the second synchronous belt is sleeved on the second driving wheel and the second driven wheel, the second driven wheel is provided with a seventh through hole extending longitudinally, and the second driven wheel is sleeved on the shaft sleeve.

7. The cutter driving mechanism according to claim 1, wherein a locking member is provided in the receiving chamber of the housing, the locking member is fixed to a lower portion of the insulating ring, the locking member is hollow to form a first threaded hole, a sleeve is threaded on an outer periphery thereof, and the sleeve is threadedly coupled to the locking member; the lateral wall of casing has the eighth through-hole, second screw hole has on the retaining member, the eighth through-hole with the second screw hole is just to arranging, the eighth through-hole with the second screw hole is used for construction bolt.

8. The tool driving mechanism according to any one of claims 1 to 7, further comprising a vision alignment camera for reading image data of the product.

9. The tool drive according to any one of claims 1 to 7, further comprising a first position sensor for detecting a longitudinal initial position of the tool, the position sensor being disposed opposite the housing.

10. The tool driving mechanism according to any one of claims 1 to 7, further comprising a second position sensor for detecting an initial rotation angle of the tool, wherein the second driven wheel has a radially extending blind hole, and wherein the second position sensor is disposed in confronting relation to the blind hole when the tool is at the initial rotation angle.