A fully automatic saw blade double-side gear grinding machine

Abstract

The invention discloses a fully automatic saw blade double-side gear grinding machine, including a frame, an electric control system and a visual recognition device, wherein a grinding device, a saw blade positioning mechanism, a saw blade pushing mechanism and a saw blade clamping mechanism are arranged on the frame; the grinding device includes an up and down swing mechanism, a left grinding mechanism, a right grinding mechanism, a servo motor and a swing arm; the thickness midline of the unprocessed saw blade is the symmetry axis L0, and the left grinding mechanism and the right grinding mechanism are arranged relative to each other about the symmetry axis L0; the left grinding mechanism includes a left grinding wheel, and the right grinding mechanism includes a right grinding wheel, and the shortest distance between the symmetry axis L0 and the outer edge of the left grinding wheel is L1, and the shortest distance between the symmetry axis L0 and the outer edge of the right grinding wheel is L2, and L1 is equal to L2; the visual recognition device includes a first visual camera, a second visual camera and a control module. The invention improves grinding accuracy, efficiency and stability, reduces costs, ensures that the saw teeth of the saw blade are ground on both sides and the grinding effect is consistent, and improves the sharpness of the saw teeth.

Description

Technical Field

[0001] The invention relates to the technical field of saw blade grinding, and in particular to a full-automatic saw blade double-side gear grinding machine. Background Art

[0002] A grinder is a special equipment used to process carbide saw blades. According to its function, it can be divided into tooth top and tooth surface grinders, side grinders, etc.

[0003] The existing side grinding machine has the following defects:

[0004] 1. The left and right grinding heads grind up and down independently. Although the grinding of both sides of the saw blade teeth can be completed independently in a single time, since the left and right grinding heads are not controlled up and down synchronously, the grinding effects of both sides of the saw teeth are likely to be inconsistent.

[0005] Second, the grinding wheel will wear during the processing process, and the gap between the grinding wheel and the saw blade will increase after wear. Since the grinding wheel cannot be adjusted close to the saw blade according to the size of the gap, it is easy for the side of the saw tooth to not be ground properly, affecting the side grinding effect and sharpness of the saw tooth.

[0006] 3. It is impossible to monitor and feedback the side grinding of the saw blade and the grinding wheel in real time, resulting in poor processing and unnecessary cost increase.

[0007] Therefore, it is urgent to design a fully automatic saw blade double-sided gear grinding machine to improve grinding accuracy, efficiency and stability, reduce costs, ensure that both sides of the saw blade teeth are ground in place and the grinding effect is consistent, and improve the sharpness of the saw teeth. Summary of the invention

[0008] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0009] A fully automatic saw blade double-side gear grinding machine, comprising a frame, characterized in that the frame is provided with a grinding device, a saw blade positioning mechanism, a saw blade pushing mechanism and a saw blade clamping mechanism on a grinding station, the saw blade positioning mechanism is used to fix the saw blade to be processed, the saw blade pushing mechanism is used to push the saw blade to change teeth in a straight line, and the saw blade clamping mechanism is used to clamp the saw blade to be processed;

[0010] The top view of the saw blade on the grinding station is taken as the viewing direction, and the thickness midline of the unprocessed saw blade is taken as the symmetry axis L0;

[0011] The grinding device comprises an up-and-down swing mechanism, a left grinding mechanism and a right grinding mechanism, wherein the up-and-down swing mechanism comprises a servo motor connected to a frame, and a swing arm connected to the servo motor, wherein the left grinding mechanism and the right grinding mechanism are arranged opposite to each other about a symmetry axis L0, and the left grinding mechanism and the right grinding mechanism are connected to an end of the swing arm away from the servo motor;

[0012] The left grinding mechanism includes a left grinding head motor and a left grinding wheel connected to the driving shaft of the left grinding head motor, and the right grinding mechanism includes a right grinding head motor and a right grinding wheel connected to the driving shaft of the right grinding head motor. The shortest distance between the symmetry axis L0 and the outer edge of the left grinding wheel is L1, and the shortest distance between the symmetry axis L0 and the outer edge of the right grinding wheel is L2, and L1 is equal to L2.

[0013] A left grinding head motor left-right driving mechanism and a right grinding head motor left-right driving mechanism are respectively arranged between the left grinding head motor and the swing arm and between the right grinding head motor and the swing arm;

[0014] Also included is a visual recognition device, the visual recognition device including a first visual camera, a second visual camera, and a control module electrically connected to the first visual camera and the second visual camera;

[0015] The first visual camera is provided with two, and is used for real-time monitoring of the grinding condition of the sawtooth side of the saw blade; the second visual camera is located above the symmetry axis L0, and is used for real-time monitoring of the size of L1 and L2 to control the left grinding wheel and the right grinding wheel to approach the symmetry axis L0, and is used for real-time monitoring of whether the left grinding wheel and the right grinding wheel are damaged;

[0016] It also includes an electric control system electrically connected to the grinding device, the saw blade positioning mechanism, the saw blade pushing mechanism, the saw blade clamping mechanism and the visual recognition device.

[0017] Preferably, the servo motor is connected to the swing arm via a high-precision reducer, and the servo motor is a servo motor with a brake.

[0018] Preferably, the left and right driving mechanisms of the left grinding head motor and the right and left grinding head motor include left and right drivers, a grinding head connecting plate, a left and right movable lead screw nut connecting plate and a left and right movable lead screw nut. The grinding head connecting plate is connected to the swing arm for left and right sliding movement via a slide rail and a slider. The left grinding head motor and the right grinding head motor are connected to the swing arm via the grinding head connecting plate respectively. The nuts of the left and right movable lead screw nuts are connected to the grinding head connecting plate. One end of the lead screw can only be rotatably connected to the left and right movable lead screw nut connecting plate. The left and right drivers are connected to the left and right movable lead screw nut connecting plate. The driving ends of the left and right drivers are connected to the lead screw transmission of the left and right movable lead screw nuts.

[0019] Preferably, the saw blade pushing mechanism comprises an ejector pin, an ejector pin connecting seat, an upper guide plate for pushing teeth, a lower guide plate for pushing teeth, a screw nut for pushing teeth and a motor for pushing teeth;

[0020] One end of the ejector pin is rotatably connected to the ejector pin connecting seat, and the other end is located above the saw blade and contacts with the saw teeth of the saw blade. The ejector pin connecting seat is connected to the upper guide plate of the push gear, and the upper guide plate of the push gear is connected to the lower guide plate of the push gear fixed on the frame through a slide rail and a slider. The push gear lead screw nut is located between the upper guide plate of the push gear and the lower guide plate of the push gear, and the nut of the push gear lead screw nut is fixedly connected to the upper guide plate of the push gear, and the two ends of the lead screw of the push gear lead screw nut can only be rotatably connected to the lower guide plate of the push gear through the push gear lead screw nut connecting seat, and the driving shaft of the push gear motor is transmission connected to one end of the lead screw of the push gear lead screw nut.

[0021] Preferably, the saw blade clamping mechanism includes a left clamping plate and a right clamping plate relatively arranged on the left and right sides of the symmetry axis L0, the left clamping plate is fixedly connected to the frame, and the saw blade clamping mechanism also includes a right clamping plate driving cylinder, the right clamping plate driving cylinder is fixedly connected to the frame, and the right clamping plate is connected to the driving end of the right clamping plate driving cylinder.

[0022] Preferably, avoidance grooves are provided on the left clamping plate and the right clamping plate, and drainage grooves are provided in the avoidance grooves.

[0023] Preferably, the saw blade positioning mechanism comprises an inner saw blade positioning component located at the grinding station, and an outer saw blade positioning component located outside the grinding station;

[0024] The saw blade internal positioning assembly comprises a saw blade placement plate located below the saw blade, a saw blade placement groove is formed on the surface of the saw blade placement plate close to the saw blade, and the saw blade placement groove extends from one end of the grinding station to the other end.

[0025] Preferably, the saw blade inner positioning assembly further includes a saw blade placement plate lifting mechanism, and the saw blade placement plate lifting mechanism includes a connecting shaft, a driving gear, a driven gear and a lifting screw nut;

[0026] The saw blade placement plate is connected to the frame for sliding up and down through a slide rail and a slider, the lifting screw nut is located between the saw blade placement plate and the frame, the nut of the lifting screw nut is fixedly connected to the saw blade placement plate, the screw rod can only be rotatably connected to the frame through the lifting screw nut connecting seat, the two ends of the connecting shaft can only be rotatably connected to the frame through the connecting shaft connecting seat, the screw rod of the lifting screw nut and the connecting shaft are connected through a mutually meshing driving gear and a driven gear, and one end of the connecting shaft extends to the outside of the frame and is connected to the handwheel.

[0027] Preferably, two or more saw blade external positioning components are provided, and the saw blade external positioning components include a lifting base, a lifting connecting rod and a saw blade positioning groove, one end of the lifting connecting rod is connected to the lifting base, and the other end is connected to the saw blade positioning groove, and the part of the saw blade except for the part located at the grinding station is movably arranged in the saw blade positioning groove.

[0028] Preferably, it also includes a cooling water tank arranged below the grinding station.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. By arranging the left grinding mechanism and the right grinding mechanism on an up-and-down swing mechanism composed of a high-precision reducer and a servo motor with a brake, the left grinding mechanism and the right grinding mechanism are simultaneously driven by the up-and-down swing mechanism to grind the sawtooth side of the saw blade. Compared with the independent control structure of the left and right grinding heads in the prior art, the effectiveness and stability of the simultaneous grinding of the left grinding wheel and the right grinding wheel are improved, the processing efficiency is improved, the energy consumption is reduced, and the accuracy of the saw blade after grinding is improved.

[0031] 2. By setting the first visual camera to monitor in real time whether the grinding lines on both sides of the saw blade are in place, the equipment can be automatically controlled to run or stop. By setting the second visual camera to monitor in real time whether the rotating left grinding wheel and right grinding wheel are damaged, the equipment can be automatically controlled to run or stop, effectively avoiding the occurrence of poor processing, improving grinding quality and reducing costs.

[0032] 3. The wear of the left and right grinding wheels is monitored in real time by the second vision camera to control the left or right grinding wheel to approach the saw blade, thereby ensuring that both sides of the saw blade's teeth are ground in place and the grinding effect is consistent, improving grinding accuracy, efficiency and stability, and improving saw tooth sharpness. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the present invention;

[0035] Figure 3 for Figure 2 A partial enlarged schematic diagram in the middle;

[0036] Figure 4 for Figure 2 A partial enlarged schematic diagram of point B in the middle;

[0037] Figure 5 for Figure 2 A partial enlarged schematic diagram of point C in the middle;

[0038] Figure 6 It is a schematic diagram of the top view of the structure of the present invention;

[0039] Figure 7 for Figure 6 The local enlarged schematic diagram of point D in the middle;

[0040] Figure 8It is one of the three-dimensional structural schematic diagrams of the saw blade positioning mechanism and the saw blade clamping mechanism in the present invention;

[0041] Fig. 9 The second is a three-dimensional structural schematic diagram of the saw blade positioning mechanism and the saw blade clamping mechanism in the present invention;

[0042] Fig.10 It is a schematic diagram of the side texture of the saw teeth of the saw blade in the present invention;

[0043] Among them: grinding device 1, saw blade positioning mechanism 2, saw blade pushing mechanism 3, saw blade clamping mechanism 4, up and down swing mechanism 5, left grinding mechanism 6, right grinding mechanism 7, servo motor 8, swing arm 9, left grinding head motor left and right driving mechanism 10, right grinding head motor left and right driving mechanism 11, visual recognition device 12, electronic control system 13, high-precision reducer 14, cooling water tank 15, saw blade inner positioning component 21, saw blade outer positioning component 22, ejector 31, ejector connecting seat 32, push gear upper guide plate 33, push gear lower guide plate 34, push gear lead screw nut 35, push gear motor 36, push gear lead screw nut connecting seat 37, left splint 41, right splint 42, right splint driving cylinder 43, left grinding head motor 61 , left grinding wheel 62, right grinding head motor 71, right grinding wheel 72, left and right drivers 111, grinding head connecting plate 112, left and right movable screw nut connecting plate 113, left and right movable screw nut 114, first visual camera 121, second visual camera 122, saw blade placement plate 211, saw blade placement plate lifting mechanism 212, lifting base 221, lifting connecting rod 222, saw blade positioning groove 223, connecting shaft 2121, driving gear 2122, driven gear 2123, lifting screw nut 2124, lifting screw nut connecting seat 2125, hand wheel 2126, frame 100, grinding station 200, saw blade 300, avoidance groove 400, discharge groove 500, saw blade placement groove 600. DETAILED DESCRIPTION

[0044] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present invention are provided in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0045] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon at the same time. The terms "vertical", "horizontal", "left", "right", "up", "down", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0047] Below, the present invention is further described in conjunction with the accompanying drawings and specific embodiments:

[0048] like Figure 1-10 As shown, a fully automatic saw blade 300 double-sided gear grinding machine comprises a frame 100, wherein the frame 100 is located on a grinding station 200 and is provided with a grinding device 1, a saw blade positioning mechanism 2, a saw blade pushing mechanism 3 and a saw blade clamping mechanism 4, wherein the saw blade positioning mechanism 2 is used to fix the saw blade 300 to be processed, the saw blade pushing mechanism 3 is used to push the saw blade 300 to change teeth in a straight line, and the saw blade clamping mechanism 4 is used to clamp the saw blade 300 to be processed;

[0049] like Figure 7 As shown, the top view of the saw blade 300 located on the grinding station 200 is taken as the viewing direction, and the thickness midline of the unprocessed saw blade 300 is taken as the symmetry axis L0;

[0050] like Figure 2 , 3 As shown in , 7, the grinding device 1 includes an up-and-down swing mechanism 5, a left grinding mechanism 6 and a right grinding mechanism 7, the up-and-down swing mechanism 5 includes a servo motor 8 connected to the frame 100, and a swing arm 9 connected to the servo motor 8, the left grinding mechanism 6 and the right grinding mechanism 7 are arranged opposite to each other about the symmetry axis L0, and the left grinding mechanism 6 and the right grinding mechanism 7 are connected to one end of the swing arm 9 away from the servo motor 8;

[0051] like Figure 3 , 7 As shown, the left grinding mechanism 6 includes a left grinding head motor 61 and a left grinding wheel 62 connected to the driving shaft of the left grinding head motor 61, and the right grinding mechanism 7 includes a right grinding head motor 71 and a right grinding wheel 72 connected to the driving shaft of the right grinding head motor 71, the shortest distance between the symmetry axis L0 and the outer edge of the left grinding wheel 62 is L1, and the shortest distance between the symmetry axis L0 and the outer edge of the right grinding wheel 72 is L2, and L1 is equal to L2;

[0052] A left grinding head motor left-right driving mechanism 10 and a right grinding head motor left-right driving mechanism 11 are respectively arranged between the left grinding head motor 61 and the swing arm 9 and between the right grinding head motor 71 and the swing arm 9;

[0053] like Figure 1 , 2 As shown, it also includes a visual recognition device 12, and the visual recognition device 12 includes a first visual camera 121, a second visual camera 122, and a control module (not shown in the figure) electrically connected to the first visual camera 121 and the second visual camera 122;

[0054] The first visual camera 121 is provided with two, and is used for real-time monitoring of the grinding condition of the sawtooth side of the saw blade 300 respectively; the second visual camera 122 is located above the symmetry axis L0, and is used for real-time monitoring of the size of L1 and L2 to control the left grinding wheel 62 and the right grinding wheel 72 to approach the symmetry axis L0, and is used for real-time monitoring of whether the left grinding wheel 62 and the right grinding wheel 72 are damaged;

[0055] It also includes an electric control system 13 electrically connected to the grinding device 1 , the saw blade positioning mechanism 2 , the saw blade pushing mechanism 3 , the saw blade clamping mechanism 4 and the visual recognition device 12 .

[0056] In this embodiment, the left grinding mechanism 6 and the right grinding mechanism 7 are arranged on the up-and-down swing mechanism 5, and the left grinding mechanism 6 and the right grinding mechanism 7 are simultaneously driven by the up-and-down swing mechanism 5 to grind the sawtooth side surfaces of the saw blade 300. Compared with the independent control structure of the left and right grinding heads in the prior art, the effectiveness and stability of the simultaneous grinding of the left grinding wheel 62 and the right grinding wheel 72 are improved, the processing efficiency is improved, the energy consumption is reduced, and the accuracy of the saw blade 300 after grinding is improved.

[0057] In this embodiment, the first visual camera 121 forms an image of the side texture of the sawtooth after grinding projected onto the sensor through the lens; the required image of the side texture of the sawtooth after grinding is stored in the control module in advance; when working, the first visual camera 121 detects the side texture of the sawtooth after grinding in real time, and transmits the real-time image of the side texture of the sawtooth after grinding to the control module for comparison with the required image of the side texture of the sawtooth after grinding; when the real-time image of the side texture of the sawtooth after grinding matches the required image of the side texture of the sawtooth after grinding, it indicates that the side surface of the sawtooth is ground qualified and the equipment is running normally; if they do not match, it indicates that the side surface of the sawtooth is ground unqualified and the equipment stops working for inspection; through the above-mentioned visual recognition and monitoring method of the double-side texture of the sawtooth, the occurrence of poor processing can be effectively avoided, the grinding quality can be improved, and the cost can be reduced.

[0058] In this embodiment, the second visual camera 122 forms an image of the area consisting of the left grinding wheel 62, the saw blade 300 and the right grinding wheel 72 projected onto the sensor through the lens, and calculates the sizes of L1 and L2 through the built-in program of the control module; the required sizes of L1 and L2 are stored in the control module in advance; when working, the second visual camera 122 detects and calculates the actual sizes of L1 and L2 in real time, and transmits the actual sizes of L1 and L2 to the control module for comparison with the required sizes of L1 and L2; when the actual sizes of L1 and L2 meet the required sizes of L1 and L2 sizes, there is no need to adjust the left grinding wheel 62 and the right grinding wheel 72 to be close to or away from the symmetry axis L0. When the actual size of L1 is greater than the required size of L1 or the actual size of L2 is greater than the required size of L2, the left grinding wheel 62 or the right grinding wheel 72 is automatically adjusted to be close to the symmetry axis L0. Through the above-mentioned visual recognition grinding wheel control method, the grinding wheel can be automatically controlled to be close to the saw blade 300 according to the wear of the grinding wheel, ensuring that the double sides of the saw teeth of the saw blade 300 are ground in place and the grinding effect is consistent, thereby improving the grinding accuracy, efficiency and stability, and improving the sharpness of the saw teeth.

[0059] like Fig.10 As shown, the left grinding mechanism 6 and the right grinding mechanism 7 are driven simultaneously by the up and down swinging mechanism 5 to grind the sawtooth side surface of the saw blade 300. Under the joint action of the visual recognition device 12, the up and down stability of the left grinding mechanism 6 and the right grinding mechanism 7 at the tilted angle state during grinding can be controlled, and the distance between the grinding wheel and the sawtooth side surface can be automatically adjusted and accurately controlled. Compared with the sawtooth side surface texture of the prior art, the sawtooth side surface texture ground by the present equipment has parallel and equal stripes and tilted toward the sawtooth tip, and the spacing between the stripes is smaller, thereby maximizing the sharpness of the sawtooth.

[0060] In addition, in this embodiment, the second visual camera 122 can also obtain images of the rotating left grinding wheel 62 and the right grinding wheel 72 in real time, and compare them with the images of the rotating left grinding wheel 62 and the right grinding wheel 72 stored in the control module. If the left grinding wheel 62 or the right grinding wheel 72 is damaged and partially missing during the processing, that is, the actual image of the rotating left grinding wheel 62 and the right grinding wheel 72 does not match the required image of the rotating left grinding wheel 62 and the right grinding wheel 72, the equipment will stop working for inspection and replace the left grinding wheel 62 or the right grinding wheel 72. Otherwise, the equipment will work normally. The above-mentioned grinding wheel visual recognition and monitoring method can effectively avoid the occurrence of poor processing, improve grinding reliability and quality, and reduce costs.

[0061] In this embodiment, during operation, the saw blade 300 to be processed is first installed on the saw blade positioning mechanism 2, and the processing parameters are set through the electronic control system 13. Then, the machine is started, and the saw blade clamping mechanism 4 clamps the saw blade 300 located at the grinding station 200. The up and down swinging mechanism 5 drives the left grinding mechanism 6 and the right grinding mechanism 7 to approach the double sides of the saw teeth of the saw blade 300 for grinding. After the grinding is completed, the left grinding mechanism 6 and the right grinding mechanism 7 are reset, and the saw blade clamping mechanism 4 releases the clamping of the saw blade 300. Then, the saw blade pushing mechanism 3 pushes the saw blade 300 to move on the saw blade positioning mechanism 2. After reaching the position, the left grinding mechanism 6 and the right grinding mechanism 7 repeat the above steps. During the process, the first visual camera 121 monitors the grinding of the double sides of the saw teeth in real time, and the second visual camera 122 automatically controls the grinding wheel to approach the saw blade 300 according to the wear of the grinding wheel in real time, thereby repeatedly operating to achieve high-precision, efficient and stable grinding of the double sides of the saw teeth of the saw blade 300.

[0062] Further, such as Figure 2 , 3 As shown, in order to improve the stability of the up and down swinging of the left grinding mechanism 6 and the right grinding mechanism 7 as well as the stability during grinding, the servo motor 8 and the swing arm 9 are connected via a high-precision reducer 14, and the servo motor 8 is a servo motor 8 with a brake.

[0063] Furthermore, in order to improve grinding reliability and efficiency, the left grinding head motor 61 and the right grinding head motor 71 adopt 6000 rpm waterproof electric spindles.

[0064] Further, such as Figure 3 As shown, in order to realize the left and right movement control of the left grinding head motor 61 and the right grinding head motor 71, the left and right driving mechanism 10 of the left grinding head motor and the left and right driving mechanism 11 of the right grinding head motor include left and right drivers 111, a grinding head connecting plate 112, a left and right movable lead screw nut connecting plate 113 and a left and right movable lead screw nut 114. The grinding head connecting plate 112 is connected to the swing arm 9 for left and right sliding movement via a slide rail and a slider. The left grinding head motor 61 and the right grinding head motor 71 are connected to the swing arm 9 via the grinding head connecting plate 112 respectively. The nut of the left and right movable lead screw nut 114 is connected to the grinding head connecting plate 112. One end of the lead screw is only rotatably connected to the left and right movable lead screw nut connecting plate 113. The left and right drivers 111 are connected to the left and right movable lead screw nut connecting plate 113. The driving end of the left and right driver 111 is connected to the lead screw of the left and right movable lead screw nut 114 for transmission.

[0065] Further, such as Figure 2 , 4As shown, in order to realize the saw blade pushing mechanism 3 pushing the saw blade 300 to change teeth in a straight line, the saw blade pushing mechanism 3 includes an ejector pin 31, an ejector pin connecting seat 32, an upper guide rail plate 33 for pushing teeth, a lower guide rail plate 34 for pushing teeth, a screw nut 35 for pushing teeth, and a motor 36 for pushing teeth;

[0066] One end of the ejector pin 31 is rotatably connected to the ejector pin connection seat 32, and the other end is located above the saw blade 300 and contacts the saw teeth of the saw blade 300. The ejector pin connection seat 32 is connected to the upper guide plate 33 of the push gear, and the upper guide plate 33 of the push gear is connected to the lower guide plate 34 of the push gear fixed on the frame 100 through a slide rail and a slider. The push gear screw nut 35 is located between the upper guide plate 33 of the push gear and the lower guide plate 34 of the push gear. The nut of the push gear screw nut 35 is fixedly connected to the upper guide plate 33 of the push gear, and the two ends of the screw rod of the push gear screw nut 35 are only rotatably connected to the lower guide plate 34 of the push gear through the push gear screw nut connection seat 37. The driving shaft of the push gear motor 36 is connected to the screw rod of the push gear screw nut 35. The end transmission connection; when working, the grinding device 1 moves away from the saw blade 300 after completing the grinding of the corresponding double-side surfaces of the saw tooth, and the saw blade clamping mechanism 4 releases the clamping of the saw blade 300, and then the pushing gear motor 36 drives the pushing gear lead screw nut 35 in reverse to rotate, thereby driving the pushing gear upper guide plate 33 and the ejector pin 31 to move horizontally in the direction opposite to the moving direction of the saw blade 300. During the process, the ejector pin 31 is stuck in the tooth groove behind the saw tooth under the action of gravity, and then the pushing gear motor 36 is driven forward, driving the pushing gear upper guide plate 33 and the ejector pin 31 to move in the same direction as the moving direction of the saw blade 300, and pushing the saw blade 300 to move during the movement. After completion, the grinding device 1 repeats the above action, thereby completing the timed push of the saw blade 300 to a set distance.

[0067] Further, such as Figure 2 , 8 As shown in , 9, in order to achieve the clamping of the saw blade 300 located at the grinding station 200 and to improve the positioning accuracy during clamping, a single-sided positioning clamping structure design is adopted to clamp the saw blade 300 while preventing the saw blade 300 from deviating from the symmetry axis L0. The saw blade clamping mechanism 4 includes a left clamping plate 41 and a right clamping plate 42 relatively arranged on the left and right sides of the symmetry axis L0, the left clamping plate 41 is fixedly connected to the frame 100, and the saw blade clamping mechanism 4 also includes a right clamping plate driving cylinder 43, the right clamping plate driving cylinder 43 is fixedly connected to the frame 100, and the right clamping plate 42 is connected to the driving end of the right clamping plate driving cylinder 43.

[0068] Further, such as Figure 8 , 9As shown, in order to prevent the high-speed sparks generated when the grinding wheel grinds the side of the saw teeth from hitting the saw blade 300 and causing damage, the left clamping plate 41 and the right clamping plate 42 are provided with an avoidance groove 400; in order to allow the chips generated during the grinding process to be quickly and effectively discharged, a discharge groove 500 is provided in the avoidance groove 400.

[0069] Further, such as Figure 2 , 8 9, in order to keep the saw blade 300 in a straight line on the grinding station 200, prevent the saw blade 300 and its symmetry axis L0 from shifting during the grinding process, and improve the reliability of the visual recognition device 12, the saw blade positioning mechanism 2 includes a saw blade inner positioning component 21 located at the grinding station 200, and a saw blade outer positioning component 22 located outside the grinding station 200;

[0070] The saw blade internal positioning assembly 21 includes a saw blade placement plate 211 located below the saw blade 300. The saw blade placement plate 211 has a saw blade placement groove 600 formed on its surface close to the saw blade 300. The saw blade placement groove 600 extends from one end of the grinding station 200 to the other end.

[0071] Further, such as Figure 8 , 9 As shown, in order to adjust the height of the saw blade 300 to cooperate with the grinding device 1 and meet the processing of saw blades 300 of different specifications, the saw blade internal positioning assembly 21 also includes a saw blade placement plate lifting mechanism 212, and the saw blade placement plate lifting mechanism 212 includes a connecting shaft 2121, a driving gear 2122, a driven gear 2123 and a lifting screw nut 2124;

[0072] The saw blade placing plate 211 is connected to the frame 100 for sliding up and down movement through a slide rail and a slider, and the lifting screw nut 2124 is located between the saw blade placing plate 211 and the frame 100. The nut of the lifting screw nut 2124 is fixedly connected to the saw blade placing plate 211, and the screw rod is only rotatably connected to the frame 100 through the lifting screw nut connecting seat 2125. The two ends of the connecting shaft 2121 are only rotatably connected to the frame 100 through the connecting shaft connecting seat 2126. The screw rod of the lifting screw nut 2124 is connected to the connecting shaft 2121 through a mutually meshing driving gear 2122 and a driven gear 2123. One end of the connecting shaft 2121 extends to the outside of the frame 100 and is connected to the handwheel 2126.

[0073] Further, such as Figure 2 , 8As shown in Figure 9, in order to improve the processing smoothness and quality of the saw blade 300 and make the saw blade 300 with an annular structure be overall horizontal and movably placed during grinding, two or more saw blade external positioning components 22 are provided, and the saw blade external positioning components 22 include a lifting base 221, a lifting connecting rod 222 and a saw blade positioning groove 223. One end of the lifting connecting rod 222 is connected to the lifting base 221, and the other end is connected to the saw blade positioning groove 223. The saw blade 300, except for the part located at the grinding station 200, is movably arranged in the saw blade positioning groove 223.

[0074] Further, such as Figure 2 As shown, a cooling water tank 15 is also included below the grinding station 200 .

[0075] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the scope of protection of the patent claims of the present invention.

Claims

1. A fully automatic saw blade double-side gear grinding machine, comprising a frame, characterized in that: The frame is located at the grinding station and is provided with a grinding device, a saw blade positioning mechanism, a saw blade pushing mechanism and a saw blade clamping mechanism, wherein the saw blade positioning mechanism is used to fix the saw blade to be processed, the saw blade pushing mechanism is used to push the saw blade to change teeth in a straight line, and the saw blade clamping mechanism is used to clamp the saw blade to be processed; The top view of the saw blade on the grinding station is taken as the viewing direction, and the thickness midline of the unprocessed saw blade is taken as the symmetry axis L0; The grinding device comprises an up-and-down swing mechanism, a left grinding mechanism and a right grinding mechanism, wherein the up-and-down swing mechanism comprises a servo motor connected to a frame, and a swing arm connected to the servo motor, wherein the left grinding mechanism and the right grinding mechanism are arranged opposite to each other about a symmetry axis L0, and the left grinding mechanism and the right grinding mechanism are connected to an end of the swing arm away from the servo motor; The left grinding mechanism includes a left grinding head motor and a left grinding wheel connected to the driving shaft of the left grinding head motor, and the right grinding mechanism includes a right grinding head motor and a right grinding wheel connected to the driving shaft of the right grinding head motor. The shortest distance between the symmetry axis L0 and the outer edge of the left grinding wheel is L1, and the shortest distance between the symmetry axis L0 and the outer edge of the right grinding wheel is L2, and L1 is equal to L2. A left grinding head motor left-right driving mechanism and a right grinding head motor left-right driving mechanism are respectively arranged between the left grinding head motor and the swing arm and between the right grinding head motor and the swing arm; Also included is a visual recognition device, the visual recognition device including a first visual camera, a second visual camera, and a control module electrically connected to the first visual camera and the second visual camera; The first visual camera is provided with two, and is used for real-time monitoring of the grinding condition of the sawtooth side of the saw blade; the second visual camera is located above the symmetry axis L0, and is used for real-time monitoring of the size of L1 and L2 to control the left grinding wheel and the right grinding wheel to approach the symmetry axis L0, and is used for real-time monitoring of whether the left grinding wheel and the right grinding wheel are damaged; Also included is an electric control system electrically connected to the grinding device, the saw blade positioning mechanism, the saw blade pushing mechanism, the saw blade clamping mechanism and the visual recognition device; The left and right driving mechanisms of the left grinding head motor and the right grinding head motor include left and right drivers, a grinding head connecting plate, a left and right movable lead screw nut connecting plate and a left and right movable lead screw nut. The grinding head connecting plate is connected to the swing arm for left and right sliding movement via a slide rail and a slider. The left grinding head motor and the right grinding head motor are connected to the swing arm via the grinding head connecting plate respectively. The nuts of the left and right movable lead screw nuts are connected to the grinding head connecting plate. One end of the lead screw can only be rotatably connected to the left and right movable lead screw nut connecting plate. The left and right drivers are connected to the left and right movable lead screw nut connecting plate. The driving ends of the left and right drivers are connected to the lead screw transmission of the left and right movable lead screw nut.

2. The fully automatic saw blade double-side gear grinding machine according to claim 1, characterized in that: The servo motor is connected to the swing arm via a high-precision reducer, and the servo motor is a servo motor with a brake.

3. The fully automatic saw blade double-side gear grinding machine according to claim 1, characterized in that: The saw blade pushing mechanism comprises an ejector pin, an ejector pin connecting seat, an upper guide rail plate for pushing teeth, a lower guide rail plate for pushing teeth, a screw nut for pushing teeth and a motor for pushing teeth; One end of the ejector pin is rotatably connected to the ejector pin connecting seat, and the other end is located above the saw blade and contacts with the saw teeth of the saw blade. The ejector pin connecting seat is connected to the upper guide plate of the push gear, and the upper guide plate of the push gear is connected to the lower guide plate of the push gear fixed on the frame through a slide rail and a slider. The push gear lead screw nut is located between the upper guide plate of the push gear and the lower guide plate of the push gear, and the nut of the push gear lead screw nut is fixedly connected to the upper guide plate of the push gear, and the two ends of the lead screw of the push gear lead screw nut can only be rotatably connected to the lower guide plate of the push gear through the push gear lead screw nut connecting seat, and the driving shaft of the push gear motor is transmission connected to one end of the lead screw of the push gear lead screw nut.

4. The fully automatic saw blade double-side gear grinding machine according to claim 1, characterized in that: The saw blade clamping mechanism includes a left clamping plate and a right clamping plate relatively arranged on the left and right sides of the symmetry axis L0, the left clamping plate is fixedly connected to the frame, and the saw blade clamping mechanism also includes a right clamping plate driving cylinder, the right clamping plate driving cylinder is fixedly connected to the frame, and the right clamping plate is connected to the driving end of the right clamping plate driving cylinder.

5. The fully automatic saw blade double-side gear grinding machine according to claim 4, characterized in that: The left clamping plate and the right clamping plate are provided with avoidance grooves, and the avoidance grooves are provided with drainage grooves.

6. The fully automatic saw blade double-side gear grinding machine according to claim 1, characterized in that: The saw blade positioning mechanism includes a saw blade inner positioning component located at the grinding station, and a saw blade outer positioning component located outside the grinding station; The saw blade internal positioning assembly comprises a saw blade placement plate located below the saw blade, a saw blade placement groove is formed on the surface of the saw blade placement plate close to the saw blade, and the saw blade placement groove extends from one end of the grinding station to the other end.

7. The fully automatic saw blade double-side gear grinding machine according to claim 6, characterized in that: The saw blade internal positioning assembly also includes a saw blade placement plate lifting mechanism, and the saw blade placement plate lifting mechanism includes a connecting shaft, a driving gear, a driven gear and a lifting screw nut; The saw blade placement plate is connected to the frame for sliding up and down through a slide rail and a slider, the lifting screw nut is located between the saw blade placement plate and the frame, the nut of the lifting screw nut is fixedly connected to the saw blade placement plate, the screw rod can only be rotatably connected to the frame through the lifting screw nut connecting seat, the two ends of the connecting shaft can only be rotatably connected to the frame through the connecting shaft connecting seat, the screw rod of the lifting screw nut and the connecting shaft are connected through a mutually meshing driving gear and a driven gear, and one end of the connecting shaft extends to the outside of the frame and is connected to the handwheel.

8. The fully automatic saw blade double-side gear grinding machine according to claim 6, characterized in that: There are more than two saw blade external positioning components, and the saw blade external positioning components include a lifting base, a lifting connecting rod and a saw blade positioning groove. One end of the lifting connecting rod is connected to the lifting base, and the other end is connected to the saw blade positioning groove. The saw blade, except for the part located at the grinding station, is movably arranged in the saw blade positioning groove.

9. The fully automatic saw blade double-side gear grinding machine according to claim 1, characterized in that: The invention also comprises a cooling water tank arranged below the grinding station.

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