Countertop angle grinding machine and countertop grinding method

Abstract

The present invention discloses a table top angle grinder and a table top grinding method, comprising a frame, a one-way transmission mechanism, a two-way transmission mechanism, and an image recognition module, wherein the frame is provided with a front positioning clamping mechanism, a front angle grinding mechanism, and a front processing platform corresponding to the one-way transmission mechanism, and a rear positioning clamping mechanism, a rear angle grinding mechanism, and a rear processing platform corresponding to the two-way transmission mechanism, wherein the front angle grinding mechanism performs front angle grinding on a workpiece of the front processing platform, and the rear angle grinding mechanism performs rear angle grinding on a workpiece of the rear processing platform. The present invention can improve processing accuracy and grinding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of angle grinding equipment, and in particular to a table top angle grinding machine and a table top grinding method. Background Art

[0002] With the vigorous development of the rock slab industry, the market has put forward higher requirements for the processing of rock slabs used in the bathroom decoration and furniture industries. The processing of rock slabs includes grinding, drilling, milling planes, etc. At present, the processing of the four corners of rock slabs on the market generally adopts manual grinding or template grinding technology. The manual grinding method is based on the pre-drawn boundaries as the reference, and manually cuts along the edge line. The template grinding technology uses a fixed rounded corner template as the reference, and under the push of the cylinder, the performance of the rounded corner is used as the motion trajectory to grind the rock slab at the specified position.

[0003] However, manual grinding has high labor costs and low production efficiency, which is not conducive to the production of the entire line. In addition, the working environment is relatively harsh, which poses a threat to human health and safety. Although the die-based grinding method improves the working environment and reduces the harm to labor, the grinding accuracy is difficult to meet the needs of customers who pursue excellent quality. It is easy to have unstable transitions in the tangent direction, and the overall grinding accuracy often fluctuates greatly. In addition, the working efficiency of die-based grinding also needs to be further improved. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a table top angle grinder which can improve the processing accuracy and grinding efficiency.

[0005] In order to solve the above technical problems, the present invention provides a table top angle grinder, comprising a frame, a one-way transmission mechanism, a two-way transmission mechanism and an image recognition module, wherein the frame is provided with a front positioning clamping mechanism, a front angle grinding mechanism and a front processing platform corresponding to the one-way transmission mechanism, and a rear positioning clamping mechanism, a rear angle grinding mechanism and a rear processing platform corresponding to the two-way transmission mechanism.

[0006] The one-way transmission mechanism and the two-way transmission mechanism can both be lifted and lowered relative to the frame to transmit the workpiece or place the workpiece on the front processing platform or the rear processing platform;

[0007] The image recognition module is used to take photos and locate the workpiece on the front processing platform or the back processing platform to obtain the position coordinates and grinding trajectory of the workpiece;

[0008] The front positioning clamping mechanism and the rear positioning clamping mechanism both include a centering mechanism, a limiting mechanism and a pressing mechanism, wherein the centering mechanism is used to center the workpiece being transported, the limiting mechanism is used to block the workpiece on the front processing platform or the rear processing platform, and the pressing mechanism is used to press the workpiece on the front processing platform or the rear processing platform;

[0009] According to the grinding trajectory, the front angle grinding mechanism performs front angle grinding on the workpiece of the front processing platform, and the rear angle grinding mechanism performs rear angle grinding on the workpiece of the rear processing platform.

[0010] As an improvement of the above scheme, the front angle grinding mechanism and the rear angle grinding mechanism both include a grinding head, a lateral driving mechanism for driving the grinding head to move lateraly, a longitudinal driving mechanism for driving the grinding head to move longitudinally, and a lifting driving mechanism for driving the grinding head to move up and down.

[0011] As an improvement of the above-mentioned scheme, the frame is provided with a grinding head trimming mechanism on the side of the grinding head, and the grinding head trimming mechanism includes a trimming block, a trimming drive cylinder, and a trimming block mounting seat. The trimming drive cylinder is fixed to the trimming block mounting seat, and a trimming guide rail is provided on the trimming block mounting seat. The length direction of the trimming guide rail is perpendicular to the workpiece conveying direction. The trimming block is fixed to the piston end of the trimming drive cylinder and is slidably connected to the trimming guide rail.

[0012] As an improvement of the above scheme, the clamping mechanism is arranged on both sides above the one-way transmission mechanism and the two-way transmission mechanism, and the clamping mechanism includes a clamping cylinder and a pressing plate arranged at the piston end of the clamping cylinder, and the pressing plate is arranged opposite to the front processing platform or the rear processing platform;

[0013] The limiting mechanism is arranged on both sides of the one-way transmission mechanism and the two-way transmission mechanism. The limiting mechanism comprises a limiting cylinder and a baffle. Both sides of the bottom of the baffle are respectively hinged to the frame and the piston end of the limiting cylinder.

[0014] As an improvement of the above solution, the centering mechanism includes a driving cylinder and a centering wheel arranged at the piston end of the driving cylinder. The centering wheels are arranged along the conveying direction and are arranged on both sides of the one-way transmission mechanism and the two-way transmission mechanism.

[0015] As an improvement of the above-mentioned scheme, the frame includes a base and two mounting frames arranged opposite to each other, the front positioning and clamping mechanism, the rear positioning and clamping mechanism, the front processing platform and the rear processing platform are all arranged on the mounting frames, the base is provided with a linear guide rail along a direction perpendicular to the workpiece transmission, the mounting frame is slidably arranged on the linear guide rail, the base is provided with a width adjustment screw rod along the direction of the linear guide rail, the end of the width adjustment screw rod is provided with a width adjustment drive motor, and a width adjustment screw rod nut matched with the width adjustment screw rod is fixedly provided on the mounting frame.

[0016] As an improvement of the above scheme, the one-way transmission mechanism and the two-way transmission mechanism both include a first bracket, a second bracket, a driving wheel, a driven wheel, an annular transmission belt, a transmission drive motor and a lifting drive cylinder, the driving wheel and the driven wheel are both rotatably arranged on the first bracket, the annular transmission belt is sleeved on the driving wheel and the driven wheel, and the driving wheel is connected to the driving end of the transmission drive motor;

[0017] The lifting drive cylinder is fixed to the second bracket, and a connecting rod is provided at the piston end of the lifting drive cylinder. A hinge plate is arranged on the connecting rod. One end of the hinge plate is hinged to the first bracket, and the other end is slidably connected to the second bracket and hinged to the connecting rod.

[0018] In addition, the present invention also provides a table top grinding method, which comprises the following steps:

[0019] The workpiece is successively transported by the one-way transport mechanism and the two-way transport mechanism. When the one-way transport mechanism transports the workpiece to the front processing platform, the one-way transport mechanism descends, and the front angle grinding mechanism grinds the front angle of the workpiece that falls on the front processing platform.

[0020] After the front angle grinding is completed, the one-way transmission mechanism is reset, and the workpiece is continued to be transported to the two-way transmission mechanism. After the workpiece with the front angle grinding is completed is forwardly transmitted to the preset position by the two-way transmission mechanism, it is further reversely transmitted to the post-processing platform. At this time, the two-way transmission mechanism descends, and the post-angle grinding mechanism performs post-angle grinding on the workpiece that falls on the post-processing platform.

[0021] As an improvement on the above scheme, the two-way transmission mechanism, the rear positioning clamping mechanism, and the rear angle grinding mechanism cooperate to perform rear angle grinding on the previous workpiece, while the next workpiece enters the front processing platform through the one-way transmission mechanism, and the one-way transmission mechanism, the front positioning clamping mechanism, and the front angle grinding mechanism cooperate to perform front angle grinding on the next workpiece.

[0022] As an improvement of the above solution, a lifting one-way transmission mechanism cooperates with a front positioning clamping mechanism to fix the workpiece on the front processing platform for front angle processing;

[0023] The lifting bidirectional transmission mechanism cooperates with the rear positioning clamping mechanism to fix the workpiece on the rear processing platform for rear angle processing.

[0024] The implementation of the present invention has the following beneficial effects:

[0025] The present invention discloses a table top angle grinder and a table top grinding method. The workpiece is successively transmitted by a one-way transmission mechanism and a two-way transmission mechanism. When the one-way transmission mechanism transmits the workpiece to a front processing platform, the one-way transmission mechanism descends, and a front angle grinding mechanism performs front angle grinding on the workpiece falling on the front processing platform. After the grinding is completed, the one-way transmission mechanism is reset, and the workpiece is continuously transported to the two-way transmission mechanism. After the workpiece with the front angle grinding is forwardly transmitted to a preset position by the two-way transmission mechanism, it is further reversely transmitted to a rear processing platform. At this time, the two-way transmission mechanism descends, and a rear angle grinding mechanism performs rear angle grinding on the workpiece falling on the rear processing platform, thereby completing the processing of four corners.

[0026] The two-way transmission mechanism, the rear positioning clamping mechanism, and the rear angle grinding mechanism cooperate to grind the rear angle of the previous workpiece, while the next workpiece enters the front processing platform through the one-way transmission mechanism. The one-way transmission mechanism, the front positioning clamping mechanism, and the front angle grinding mechanism cooperate to grind the front angle of the next workpiece, which can realize online processing, improve the automation of the assembly line, and improve the grinding efficiency;

[0027] The lifting one-way transmission mechanism cooperates with the front positioning clamping mechanism to fix the workpiece on the front processing platform for front angle processing, and the lifting two-way transmission mechanism cooperates with the rear positioning clamping mechanism to fix the workpiece on the rear processing platform for rear angle processing, which can reduce the vibration of the workpiece, improve the stability of the workpiece during processing, and help improve the processing accuracy;

[0028] The image recognition module is used to take photos and locate the workpiece on the front processing platform or the back processing platform, so as to obtain the real-time and accurate position coordinates of the workpiece, so as to make the tool alignment and grinding trajectory more accurate during the front angle grinding mechanism and the back angle grinding mechanism processing, thereby improving the overall grinding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of a table top angle grinder of the present invention;

[0030] Figure 2 yes Figure 1 A schematic diagram of the structure of a one-way transmission mechanism, a two-way transmission mechanism and a rack component;

[0031] Figure 3 yes Figure 1 A schematic diagram of the structure of the front angle grinding mechanism, the grinding head of the rear angle grinding mechanism and the image recognition module;

[0032] Figure 4 yes Figure 1 A schematic diagram of the structure of the longitudinal drive mechanism of the front angle grinding mechanism and the rear angle grinding mechanism;

[0033] Figure 5 yes Figure 1A schematic diagram of the structure of the front angle grinding mechanism and the lateral driving mechanism of the rear angle grinding mechanism;

[0034] Figure 6 yes Figure 2 A structural schematic diagram of a grinding head trimming mechanism;

[0035] Figure 7 yes Figure 1 A schematic diagram of the base structure of the rack;

[0036] Figure 8 yes Figure 1 A schematic diagram of the structure of the mounting frame of the rack and the front positioning clamping mechanism and the rear positioning clamping mechanism;

[0037] Fig. 9 yes Figure 8 A schematic diagram of the structure of the front positioning clamping mechanism, the clamping mechanism and the limiting mechanism of the rear positioning clamping mechanism;

[0038] Fig.10 yes Figure 1 Structural schematic diagram of a one-way transmission mechanism and a two-way transmission mechanism. DETAILED DESCRIPTION

[0039] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0040] like Figure 1 and Figure 2As shown, the present embodiment provides an embodiment of a table top angle grinder, comprising a frame 1, a one-way transmission mechanism 2, a two-way transmission mechanism 3, an image recognition module 4 and a general controller, the frame 1 is provided with a front positioning clamping mechanism 5a, a front angle grinding mechanism 6a and a front processing platform 7a corresponding to the one-way transmission mechanism 2, and a rear positioning clamping mechanism 5b, a rear angle grinding mechanism 6b and a rear processing platform 7b corresponding to the two-way transmission mechanism 3, the one-way transmission mechanism 2, the two-way transmission mechanism 3, the image recognition module 4, the front positioning clamping mechanism 5a, the rear positioning clamping mechanism 5b, the front angle grinding mechanism 6a and the rear angle grinding mechanism 6b are electrically connected to the controller respectively; the one-way transmission mechanism 2 and the two-way transmission mechanism 3 can be liftably arranged on the frame 1, when the workpiece is transmitted to the front processing platform 7a, the one-way transmission mechanism 2 descends, and the workpiece falls on the front processing platform 7a; when the workpiece is first forwardly transmitted to When in the preset position, the bidirectional transmission mechanism 3 runs in the reverse direction. When the workpiece is transmitted in the reverse direction to the post-processing platform 7b, the bidirectional transmission mechanism 3 descends and the workpiece falls on the post-processing platform 7b; the image recognition module 4 is used to photograph and locate the workpiece on the front processing platform 7a or the post-processing platform 7b to obtain the position coordinates and grinding trajectory of the workpiece; the front positioning clamping mechanism 5a and the rear positioning clamping mechanism 5b both include a centering mechanism 51, a limiting mechanism 52 and a clamping mechanism 53, the centering mechanism 51 is used to center the transmitted workpiece, the limiting mechanism 52 is used to block the workpiece on the front processing platform 7a or the post-processing platform 7b, and the clamping mechanism 53 is used to press the workpiece on the front processing platform 7a or the post-processing platform 7b; the main controller controls the front angle grinding mechanism to perform front angle grinding on the workpiece on the front processing platform 7a, and controls the back angle grinding mechanism 6b to perform back angle grinding on the workpiece on the post-processing platform 7b.

[0041] The workpiece of this embodiment is successively transmitted through the one-way transmission mechanism 2 and the two-way transmission mechanism 3. When the one-way transmission mechanism 2 transmits the workpiece to the front processing platform 7a, the one-way transmission mechanism 2 descends, and the front angle grinding mechanism performs front angle grinding on the workpiece falling on the front processing platform 7a; after the grinding is completed, the one-way transmission mechanism 2 is reset, and the workpiece is continued to be transported to the two-way transmission mechanism 3; after the workpiece with the front angle grinding is forwardly transmitted to the preset position by the two-way transmission mechanism 3, it is further reversely transmitted to the rear processing platform 7b. At this time, the two-way transmission mechanism 3 descends, and the rear angle grinding mechanism performs rear angle grinding on the workpiece falling on the rear processing platform 7b to complete the processing of the four corners.

[0042] While the two-way transmission mechanism 3, the rear positioning clamping mechanism 5b, and the rear angle grinding mechanism 6b cooperate to perform rear angle grinding on the previous workpiece, the next workpiece will enter the front processing platform 7a through the one-way transmission mechanism 2, and the one-way transmission mechanism 2, the front positioning clamping mechanism 5a, and the front angle grinding mechanism 6a cooperate to perform front angle grinding on the next workpiece, which can realize online processing, improve the automation of the assembly line, and improve the grinding efficiency.

[0043] The lifting one-way transmission mechanism 2 cooperates with the front positioning clamping mechanism 5a to fix the workpiece on the front processing platform 7a for front angle processing, and the lifting two-way transmission mechanism 3 cooperates with the rear positioning clamping mechanism 5b to fix the workpiece on the rear processing platform 7b for rear angle processing, which can reduce the vibration of the workpiece, improve the stability of the workpiece during processing, and help improve the processing accuracy.

[0044] The image recognition module 4 is used to photograph and locate the workpiece on the front processing platform 7a or the rear processing platform 7b to obtain the real-time and accurate position coordinates of the workpiece, so that the tool alignment and grinding trajectory of the front angle grinding mechanism and the rear angle grinding mechanism are more accurate, thereby improving the overall grinding accuracy.

[0045] It should be noted that the forward transmission in this embodiment refers to the transmission in the same direction as the transmission direction of the one-way transmission mechanism 2 , and the reverse transmission refers to the transmission in the opposite direction to the transmission direction of the one-way transmission mechanism 2 .

[0046] Combination Figure 3 , Figure 4 and Figure 5 The front angle grinding mechanism 6a and the rear angle grinding mechanism 6b of this embodiment both include a grinding head 61, a lateral driving mechanism 62 for driving the grinding head 61 to move lateraly, a longitudinal driving mechanism 63 for driving the grinding head 61 to move longitudinally, and a lifting driving mechanism for driving the grinding head 61 to move up and down.

[0047] The grinding head 61 specifically includes a grinding head mounting plate 611, a grinding head driving motor 612 disposed on the grinding head mounting plate 611, and a grinding head body 613 disposed at the power output end of the grinding head driving motor 612, wherein the grinding head driving motor 612 is used to drive the grinding head body 613 to rotate. The longitudinal driving mechanism 63 includes a longitudinal slide 631, a longitudinal driving motor 632 disposed on the longitudinal slide 631, a longitudinal guide rail 633 and a longitudinal screw rod 634, wherein the longitudinal guide rail 633 and the longitudinal screw rod 634 are arranged in parallel, the grinding head mounting plate 611 is slidably connected to the longitudinal guide rail 633, the grinding head mounting plate 611 is provided with a longitudinal screw rod nut adapted to the longitudinal screw rod 634, and the longitudinal driving motor 632 is connected to the longitudinal screw rod 634, and is used to drive the longitudinal screw rod 634 to drive the longitudinal screw rod nut and the grinding head 61 to move longitudinally. The transverse drive mechanism 62 includes a transverse slide 621, a transverse drive motor 622 disposed on the transverse slide 621, a transverse guide rail 623 and a transverse screw rod 624, wherein the transverse guide rail 623 and the transverse screw rod 624 are arranged in parallel, the longitudinal slide 631 is slidably connected to the transverse guide rail 623, the longitudinal slide 631 is provided with a transverse screw rod nut adapted to the transverse screw rod 624, and the transverse drive motor 622 is connected to the transverse screw rod 624 to drive the transverse screw rod nut and the longitudinal slide 631 to move transversely. The longitudinal drive motor 632 and the transverse drive motor 622 can drive the grinding head 61 to grind the workpiece along the grinding track.

[0048] Combination Figure 6 In order to further improve the grinding quality, in this embodiment, a grinding head trimming mechanism 8 is provided on the side of the grinding head 61 on the frame 1. The grinding head trimming mechanism 8 includes a trimming block 81, a trimming drive cylinder 82, and a trimming block mounting seat 83. The trimming drive cylinder 82 is fixed to the trimming block mounting seat 83. A trimming guide rail 831 is provided on the trimming block mounting seat 83. The length direction of the trimming guide rail 831 is perpendicular to the workpiece conveying direction. The trimming block 81 is fixed to the piston end of the trimming drive cylinder 82 and is slidably connected to the trimming guide rail 831. After the grinding head body 613 is worn due to long-term work, steps or round tables may appear on the surface of the grinding head body 613. At this time, the grinding head 61 will affect the grinding accuracy of the workpiece. The trimming drive cylinder 82 drives the trimming block 81 to approach the grinding head body 613, and the grinding head body 613 is raised and lowered to a suitable height, so that the driving trimming block 81 performs uniform trimming on the surface of the grinding head body 613.

[0049] The image recognition module 4 of this embodiment is preferably fixed to the grinding head 61. When the image recognition module 4 is taking pictures for positioning, the longitudinal drive motor 632 and the transverse drive motor 622 drive the image recognition module 4 to move to a preset position, that is, the origin position when in a non-grinding state.

[0050] Combination Figure 7 and Figure 8 The frame 1 of this embodiment includes a base 11 and two mounting frames 12 arranged opposite to each other. The front positioning and clamping mechanism 5a, the rear positioning and clamping mechanism 5b, the front processing platform 7a and the rear processing platform 7b are all arranged on the mounting frames 12. The base 11 is provided with a linear guide rail 111 in a direction perpendicular to the workpiece transmission. The mounting frame 12 is slidably arranged on the linear guide rail 111. The base 11 is provided with a width adjustment screw rod 112 in the direction of the linear guide rail 111. The end of the width adjustment screw rod 112 is provided with a width adjustment drive motor 113. The mounting frame 12 is fixed with a width adjustment screw rod nut adapted to the width adjustment screw rod 112. The distance between the two mounting frames 12 is adjusted by the width adjustment drive motor 113, which can adapt to the processing of workpieces of different sizes.

[0051] Combination Fig. 9 , the front positioning clamping mechanism 5a and the rear positioning clamping mechanism 5b of this embodiment are arranged back to back. The centering mechanism 51 specifically includes a driving cylinder and a centering wheel arranged at the piston end of the driving cylinder. The centering wheels are arranged along the conveying direction and are arranged on both sides of the one-way transmission mechanism 2 and the two-way transmission mechanism 3. The clamping mechanism 53 is arranged on both sides above the one-way transmission mechanism 2 and the two-way transmission mechanism 3. The clamping mechanism 53 specifically includes a clamping cylinder 531 and a pressing plate 532 arranged at the piston end of the clamping cylinder 531. The pressing plate 532 is arranged opposite to the front processing platform 7a or the rear processing platform 7b. The limiting mechanism 52 is arranged on both sides of the one-way transmission mechanism 2 and the two-way transmission mechanism 3. The limiting mechanism 52 specifically includes a limiting cylinder 521 and a baffle 522. The bottom two sides of the baffle 522 are respectively hinged to the frame 1 and the piston end of the limiting cylinder 521.

[0052] Combination Fig.10 The one-way transmission mechanism 2 and the two-way transmission mechanism 3 both include a first bracket 31, a second bracket 32, a driving wheel, a driven wheel, an annular transmission belt 33, a transmission drive motor 34 and a lifting drive cylinder 35. The driving wheel and the driven wheel are both rotatably arranged on the first bracket 31, the annular transmission belt 33 is sleeved on the driving wheel and the driven wheel, and the driving wheel is connected to the driving end of the transmission drive motor 34; the lifting drive cylinder 35 is fixed to the second bracket 32, and a connecting rod 36 is provided at the piston end of the lifting drive cylinder 35, and a hinge piece 37 is arranged on the connecting rod 36, one end of the hinge piece 37 is hinged to the first bracket 31, and the other end is slidably connected to the second bracket 32 ​​and hinged to the connecting rod 36.

[0053] In order to adapt to the processing of workpieces with larger sizes, in this embodiment, a supporting wheel assembly 9 is provided between the unidirectional transmission mechanism 2 and the bidirectional transmission mechanism 3 on the base 11. The supporting wheel assembly 9 includes a supporting cylinder 91 and a supporting wheel 92 provided at the piston end of the supporting cylinder 91. The supporting wheel 92 is arranged along the direction of workpiece transmission to support large-sized workpieces. It should be noted that the action of the supporting cylinder 91 is synchronized with the action of the lifting drive cylinder 35, that is, it is lifted and lowered synchronously with the corresponding unidirectional transmission mechanism 2 or bidirectional transmission mechanism 3 to ensure that the workpiece is normally transmitted or falls on the front processing platform 7a / rear processing platform 7b.

[0054] The frame 1 of this embodiment is provided with a front in-position sensor (not shown in the figure) near the front processing platform 7a, and the frame 1 is provided with a first rear in-position sensor (not shown in the figure) near the rear processing platform 7b. The frame 1 is provided with a second rear in-position sensor (not shown in the figure) at a preset position located at the forward output end of the bidirectional transmission mechanism 3. The front in-position sensor, the first rear in-position sensor and the second rear in-position sensor are all electrically connected to the controller.

[0055] The workpiece processing process of this embodiment is as follows:

[0056] The workpiece is transported in a centered manner on the annular conveyor belt 33 of the one-way conveying mechanism 2. When the in-position sensor senses the workpiece, the main controller controls the limit cylinder to drive the baffle to block the workpiece at the position of the front processing platform 7a, further controls the lifting drive cylinder 35 to drive the annular conveyor belt 33 to descend, and at the same time, the pressing cylinder drives the pressing plate to press the workpiece on the front processing platform 7a, and further controls the longitudinal drive motor 632 and the transverse drive motor 622 to drive the grinding head 61 to grind the front angle of the workpiece on the front processing platform 7a along the grinding track;

[0057] After the front angle grinding is completed, the clamping cylinder drives the pressing plate to lift, and at the same time, the lifting drive cylinder 35 drives the annular conveyor belt 33 to reset, and the limit cylinder drives the baffle to reset, and the workpiece continues to be transferred to the annular conveyor belt of the bidirectional transmission mechanism 3;

[0058] When the workpiece passes the first rear-position sensor and reaches the second rear-position sensor, the controller controls the transmission drive motor 34 of the bidirectional transmission mechanism 3 to drive the annular conveyor belt 33 to reversely transmit the workpiece to the position of the first rear-position sensor, further controls the limit cylinder to drive the baffle to block the workpiece at the position of the rear processing platform 7b, further controls the lifting drive cylinder 35 to drive the annular conveyor belt 33 to descend, and at the same time, the pressing cylinder drives the pressing plate to press the workpiece on the rear processing platform 7b, and further controls the longitudinal drive motor 632 and the transverse drive motor 622 to drive the grinding head 61 to grind the back angle of the workpiece on the rear processing platform 7b along the grinding trajectory;

[0059] After the back angle grinding is completed, the clamping cylinder drives the pressure plate to lift, and at the same time, the lifting drive cylinder 35 drives the annular conveyor belt 33 to reset, and the limit cylinder drives the baffle to reset. The controller controls the transmission drive motor 34 of the two-way transmission mechanism 3 to drive the annular conveyor belt 33 to transmit forward, and the workpiece passes through the second rear-arrival sensor again and continues to be transmitted to the production line of the next process.

[0060] While the previous workpiece is undergoing back angle grinding, the next workpiece enters the one-way transmission mechanism 2 for front angle grinding.

[0061] In summary, the implementation of the present invention has the following beneficial effects:

[0062] The two-way transmission mechanism 3, the rear positioning clamping mechanism 5b, and the rear angle grinding mechanism 6b cooperate to grind the rear angle of the previous workpiece, while the next workpiece enters the front processing platform 7a through the one-way transmission mechanism 2, and the one-way transmission mechanism 2, the front positioning clamping mechanism 5a, and the front angle grinding mechanism 6a cooperate to grind the front angle of the next workpiece, which can realize the connection processing, improve the automation of the assembly line, and improve the grinding efficiency;

[0063] The lifting one-way transmission mechanism 2 cooperates with the front positioning clamping mechanism 5a to fix the workpiece on the front processing platform 7a for front angle processing, and the lifting two-way transmission mechanism 3 cooperates with the rear positioning clamping mechanism 5b to fix the workpiece on the rear processing platform 7b for rear angle processing, which can reduce the vibration of the workpiece, improve the stability of the workpiece during processing, and help improve the processing accuracy;

[0064] The image recognition module 4 takes a photo of the workpiece on the front processing platform 7a or the rear processing platform 7b to obtain the real-time and accurate position coordinates of the workpiece, so that the tool alignment and grinding trajectory of the front angle grinding mechanism and the rear angle grinding mechanism are more accurate, thereby improving the overall grinding accuracy;

[0065] The grinding head trimming mechanism 8 can perform uniform trimming on the surface of the grinding head body 613 to help improve the consistency of grinding quality.

[0066] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A tabletop angle grinder, characterized in that: The machine comprises a frame, a one-way transmission mechanism, a two-way transmission mechanism and an image recognition module. The frame is provided with a front positioning clamping mechanism, a front angle grinding mechanism and a front processing platform corresponding to the one-way transmission mechanism, and a rear positioning clamping mechanism, a rear angle grinding mechanism and a rear processing platform corresponding to the two-way transmission mechanism. The one-way transmission mechanism and the two-way transmission mechanism can both be lifted and lowered relative to the frame to transmit the workpiece or place the workpiece on the front processing platform or the rear processing platform; The image recognition module is used to take photos and locate the workpiece on the front processing platform or the back processing platform to obtain the position coordinates and grinding trajectory of the workpiece; The front positioning clamping mechanism and the rear positioning clamping mechanism both include a centering mechanism, a limiting mechanism and a pressing mechanism, wherein the centering mechanism is used to center the workpiece being transported, the limiting mechanism is used to block the workpiece on the front processing platform or the rear processing platform, and the pressing mechanism is used to press the workpiece on the front processing platform or the rear processing platform; According to the grinding trajectory, the front angle grinding mechanism performs front angle grinding on the workpiece of the front processing platform, and the rear angle grinding mechanism performs rear angle grinding on the workpiece of the rear processing platform; The centering mechanism includes a driving cylinder and a centering wheel arranged at the piston end of the driving cylinder, wherein the centering wheels are arranged in an array along the conveying direction and are relatively arranged on both sides of the one-way transmission mechanism and the two-way transmission mechanism; The frame includes a base and two mounting frames arranged opposite to each other, the front positioning clamping mechanism, the rear positioning clamping mechanism, the front processing platform and the rear processing platform are all arranged on the mounting frames, the base is provided with a linear guide rail along a direction perpendicular to the workpiece transmission, the mounting frame is slidably arranged on the linear guide rail, the base is provided with a width adjustment screw rod along the direction of the linear guide rail, the end of the width adjustment screw rod is provided with a width adjustment driving motor, and a width adjustment screw rod nut matched with the width adjustment screw rod is fixedly provided on the mounting frame; The one-way transmission mechanism and the two-way transmission mechanism both include a first bracket, a second bracket, a driving wheel, a driven wheel, an annular transmission belt, a transmission drive motor and a lifting drive cylinder. The driving wheel and the driven wheel are both rotatably arranged on the first bracket, the annular transmission belt is sleeved on the driving wheel and the driven wheel, and the driving wheel is connected to the driving end of the transmission drive motor; The lifting drive cylinder is fixed to the second bracket, and a connecting rod is provided at the piston end of the lifting drive cylinder. A hinge plate is arranged on the connecting rod. One end of the hinge plate is hinged to the first bracket, and the other end is slidably connected to the second bracket and hinged to the connecting rod.

2. The table top angle grinder according to claim 1, characterized in that: The front angle grinding mechanism and the rear angle grinding mechanism each include a grinding head, a lateral driving mechanism for driving the grinding head to move lateraly, a longitudinal driving mechanism for driving the grinding head to move longitudinally, and a lifting driving mechanism for driving the grinding head to move up and down.

3. The table top angle grinder according to claim 2, characterized in that: The frame is provided with a grinding head trimming mechanism on the side of the grinding head, and the grinding head trimming mechanism includes a trimming block, a trimming drive cylinder, and a trimming block mounting seat. The trimming drive cylinder is fixed to the trimming block mounting seat, and a trimming guide rail is provided on the trimming block mounting seat. The length direction of the trimming guide rail is perpendicular to the workpiece conveying direction. The trimming block is fixed to the piston end of the trimming drive cylinder and is slidably connected to the trimming guide rail.

4. The table top angle grinder according to claim 1, characterized in that: The clamping mechanism is arranged on both sides above the one-way transmission mechanism and the two-way transmission mechanism, and the clamping mechanism comprises a clamping cylinder and a pressing plate arranged at the piston end of the clamping cylinder, and the pressing plate is arranged opposite to the front processing platform or the rear processing platform; The limiting mechanism is arranged on both sides of the one-way transmission mechanism and the two-way transmission mechanism. The limiting mechanism comprises a limiting cylinder and a baffle. Both sides of the bottom of the baffle are respectively hinged to the frame and the piston end of the limiting cylinder.

5. A method for grinding a countertop using the countertop angle grinder according to claims 1 to 4, characterized in that: The following steps are involved: The workpiece is successively transported by the one-way transport mechanism and the two-way transport mechanism. When the one-way transport mechanism transports the workpiece to the front processing platform, the one-way transport mechanism descends, and the front angle grinding mechanism grinds the front angle of the workpiece that falls on the front processing platform. After the front angle grinding is completed, the one-way transmission mechanism is reset, and the workpiece is continued to be transported to the two-way transmission mechanism. After the workpiece with the front angle grinding is completed is forwardly transmitted to the preset position by the two-way transmission mechanism, it is further reversely transmitted to the post-processing platform. At this time, the two-way transmission mechanism descends, and the post-angle grinding mechanism performs post-angle grinding on the workpiece that falls on the post-processing platform.

6. The table top grinding method according to claim 5, characterized in that: While the bidirectional transmission mechanism, the rear positioning clamping mechanism, and the rear angle grinding mechanism cooperate to perform rear angle grinding on the previous workpiece, the next workpiece enters the front processing platform through the unidirectional transmission mechanism, and the unidirectional transmission mechanism, the front positioning clamping mechanism, and the front angle grinding mechanism cooperate to perform front angle grinding on the next workpiece.

7. The table top grinding method according to claim 5 or 6, characterized in that: The lifting one-way transmission mechanism cooperates with the front positioning clamping mechanism to fix the workpiece on the front processing platform for front angle processing; The lifting bidirectional transmission mechanism cooperates with the rear positioning clamping mechanism to fix the workpiece on the rear processing platform for rear angle processing.

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