Burr polishing device for high-strength automobile structural part

Abstract

The invention discloses a burr polishing device for a high-strength automobile structural member, which belongs to the technical field of mechanical polishing and comprises a workbench and a workpiece, a machining table is arranged on the workbench, a motor and a liquid pipe are connected in the machining table, the output end of the motor is connected with a polishing head, and the burr polishing device further comprises a clamping mechanism and a detection mechanism which are arranged at the bottom of the machining table. In the polishing process, vibration transmission between the machining table and the machined part can be attenuated, chatter marks are reduced, and the surface smoothness is improved through elastic clamping of the second sliding block, the first sliding block and the third sliding block on the machined part, in the polishing process, the protruding degree of a polishing area is pre-detected through the detection block, and when the polishing head passes through the detection area subsequently, the polishing efficiency is improved. The rotating speed of the grinding head and the liquid spraying amount of the liquid pipe are adjusted through the transmission rod, self-adaptive automatic adjustment of the grinding head and the liquid pipe is achieved according to the pre-detection result of the machined part, and the grinding efficiency and the grinding work quality are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical grinding, and more specifically, to a burr grinding device for high-strength automotive structural parts. Background Art

[0002] High-strength automotive structural parts, such as high-strength components formed by hot stamping of hot-formed steel, during stamping, due to the poor plasticity and low elongation of high-strength materials, the cracks generated are prone to rapidly expand to form sharp burrs. The burrs on the components will cause a significant increase in the stress concentration coefficient, resulting in stress concentration or when colliding, accelerating the crack propagation speed and affecting the overall safety. Therefore, subsequent burr grinding and removal treatment are required.

[0003] In the prior art for burr removal, generally, the structural part is fixed to the processing table, and then the surface of the part is ground and processed by a grinding wheel or a grinding head. However, for some long-shaped parts, when grinding to a position far from the fixed area, the grinding force and vibration generated by the grinding tool are likely to cause the part to vibrate synchronously, and it is easy to generate vibration marks on the surface of the component, affecting the surface finish and grinding quality of the overall component.

[0004] How to invent a burr grinding device for high-strength automotive structural parts to improve these problems has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] To make up for the above deficiencies, the present invention provides a burr grinding device for high-strength automotive structural parts, aiming to improve the problems proposed in the above background art.

[0006] The present invention is implemented as follows: The present invention provides a burr grinding device for high-strength automotive structural parts, including a workbench and a workpiece. A processing table is arranged on the workbench. A motor and a liquid pipe are connected inside the processing table. The output end of the motor is connected to a grinding head. It further includes a clamping mechanism and a detection mechanism arranged at the bottom of the processing table; The clamping mechanism includes a slider one slidably connected inside the processing table. A spring is arranged between the slider one and the processing table. A slider two is sleeved at the bottom of the slider one. A spring is connected between the slider two and the slider one. A slider three is sleeved inside the slider two. A spring is arranged between the slider three and the slider two. A cleaning block is further arranged at the bottom of the processing table; The detection mechanism includes a first pipeline, a hydraulic cavity, and a second pipeline opened inside the processing table. The hydraulic cavity is connected to the first pipeline. A detection block is sleeved at the bottom of the hydraulic cavity. A ball is arranged at the bottom of the detection block. A spring is arranged between the detection block and the hydraulic cavity. A piston rod is connected between the first pipeline and the second pipeline. A third pipeline is connected to the top of the second pipeline. An electric circuit component for adjusting the motor is arranged inside the processing table. A liquid circuit component for adjusting the liquid pipe flow rate is also arranged at the end of the third pipeline. A buffer component for delaying the transmission of the liquid circuit power is further arranged inside the processing table.

[0007] Preferably, the first slider is symmetrically designed and distributed inside the processing table along the workpiece. The third slider is symmetrically distributed inside the second slider along the workpiece. The third slider and the second slider are provided with balls that cooperate with the workpiece. There are two sets of clamping mechanisms and cleaning blocks, which are symmetrically distributed inside the processing table along the grinding head.

[0008] Preferably, the cross-sectional area of the hydraulic cavity, the second pipeline, and the detection block in the horizontal direction is larger than the cross-sectional area of the first pipeline in the horizontal direction. Piston blocks that are respectively movably sleeved inside the first pipeline and the second pipeline are arranged at both ends of the piston rod. The inside of the hydraulic cavity and the third pipeline is filled with hydraulic oil for transmission.

[0009] Preferably, a sealing groove is opened on the side wall of the detection block. A secondary piston is sleeved inside the hydraulic cavity. The secondary piston is annularly designed. The outside of the secondary piston is movably and sealingly sleeved with the hydraulic cavity. The inside of the secondary piston is movably and sealingly sleeved with the sealing groove. A spring is arranged between the secondary piston and the bottom of the hydraulic cavity.

[0010] Preferably, the buffer component includes a buffer cavity opened inside the processing table. The inside of the buffer cavity is filled with hydraulic oil. One end of the buffer cavity is connected to the third pipeline. A transmission rod is sleeved at the other end of the buffer cavity. A flow guide plate and a buffer block are arranged inside the buffer cavity. A liquid inlet and a liquid return port are opened inside the flow guide plate. A fourth slider and a fifth slider are sleeved at the end of the buffer cavity close to the third pipeline. A spring is arranged between the fourth slider and the fifth slider. A sixth slider is sleeved on the side of the buffer block facing the liquid inlet. A spring is arranged between the sixth slider and the buffer block. A flow-through pipe is arranged inside the buffer block. The two ends of the flow-through pipe are respectively communicated with the liquid inlet and the transmission rod.

[0011] Preferably, a one-way valve for allowing the liquid to flow from the fifth slider to the sixth slider is arranged inside the liquid inlet. A one-way valve for allowing the liquid to flow from the sixth slider to the fifth slider is arranged inside the liquid return port. The number of liquid inlets is greater than the number of liquid return ports, and the flow cross-sectional area of the liquid inlets is larger than the flow cross-sectional area of the liquid return ports.

[0012] Preferably, the electric circuit component includes a coil conductor arranged on the side wall of the transmission rod. A first conductor block in contact with the coil conductor is connected to the side wall of the transmission rod. A second conductor block is fixedly installed inside the processing table. A conductor piece in contact with the coil conductor is arranged on the top of the second conductor block. The first conductor block and the second conductor block are electrically connected to the motor.

[0013] Preferably, the liquid path assembly includes an iris mechanism disposed inside the liquid pipe. A gear ring is provided on the outer side wall of the iris mechanism, and a rack group meshing with the gear ring is provided on the outer side wall of the transmission rod.

[0014] In summary, the beneficial effects of the present invention are as follows: 1. During the grinding process, through the elastic clamping of the workpiece by the second slider, the first slider, and the third slider, the vibration transmission between the processing table and the workpiece can be attenuated, reducing chatter marks and improving the surface finish. At the same time, during the grinding process, the convexity of the grinding area is pre-detected by the detection block. Through the cross-sectional area difference between the detection block and the first pipeline, the detection result is amplified and feedback through liquid path transmission. The feedback result is delayed and transmitted to the transmission rod through the buffering of the sixth slider and the low-speed flow of the circulation pipe. When the grinding head passes through the detection area later, the rotation speed of the grinding head and the liquid spraying amount of the liquid pipe are adjusted through the transmission rod, realizing the adaptive automatic adjustment of the grinding head and the liquid pipe according to the pre-detection result of the workpiece, ensuring the grinding efficiency and the quality of the grinding work.

[0015] 2. When burrs or bumps with a large degree of convexity are detected on the surface of the workpiece, through the cooperation of the sealing groove and the secondary piston, the volume of the hydraulic oil entering the first pipeline is significantly increased, realizing the further amplification of the detection result of the workpiece surface, and realizing the non-linear response of the detection block to the workpiece surface detection. The greater the degree of convexity, the greater the feedback degree. While performing the overall detection, the feedback degree of the independent burr detection to the overall detection result is ensured, guaranteeing the quality of the overall processing of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic diagram of the overall workbench provided by the embodiment of the present invention.

[0018] Figure 2 It is a schematic diagram of the overall processing table provided by the embodiment of the present invention.

[0019] Figure 3 It is a schematic side view of the processing table provided by the embodiment of the present invention.

[0020] Figure 4 It is a schematic diagram of the overall detection mechanism provided by the embodiment of the present invention.

[0021] Figure 5 It is a schematic internal view of the hydraulic cavity provided by an embodiment of the present invention.

[0022] Figure 6 It is a schematic view of the buffer assembly provided by an embodiment of the present invention.

[0023] Figure 7 It is a schematic view of the circuit assembly provided by an embodiment of the present invention.

[0024] Figure 8 It is a schematic internal view of the iris mechanism provided by an embodiment of the present invention.

[0025] Figure 9 It is a schematic overall view of the clamping mechanism provided by an embodiment of the present invention.

[0026] Figure 10 It is a schematic cross-sectional view of the secondary piston provided by an embodiment of the present invention.

[0027] Legend description: 100, workbench; 200, processing table; 201, motor; 202, grinding head; 203, liquid pipe; 204, cleaning block; 300, workpiece; 400, slider two; 401, slider one; 402, slider three; 500, detection block; 501, pipeline one; 502, pipeline two; 503, pipeline three; 504, piston rod; 505, hydraulic cavity; 506, sealing groove; 507, secondary piston; 600, buffer cavity; 601, slider four; 602, slider five; 603, slider six; 604, circulation pipe; 605, transmission rod; 606, deflector; 607, liquid inlet; 608, return port; 609, buffer block; 700, gear ring; 701, guide block one; 702, guide block two; 703, coil; 704, rack group; 705, iris mechanism. Specific embodiments

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0029] Refer to Figure 1-9, the present invention provides a burr grinding device for high-strength automotive structural parts, including a workbench 100 and a workpiece 300. A processing table 200 is arranged on the workbench 100. A motor 201 and a liquid pipe 203 are connected inside the processing table 200. The liquid pipe 203 is communicated with an external liquid supply pipe to provide grinding coolant for the grinding work. The output end of the motor 201 is connected with a grinding head 202. An electric slide rail is arranged on the workbench 100. The processing table 200 is connected with the workbench 100 through an electric slider arranged on the electric slide rail. It also includes a clamping mechanism and a detection mechanism arranged at the bottom of the processing table 200; The clamping mechanism includes a first slider 401 slidably connected inside the processing table 200. Specifically, a set of sleeve rods are arranged inside the processing table 200, and the first slider 401 is slidably connected with the sleeve rods. The spring between the first slider 401 and the processing table 200 is arranged outside the sleeve rods. A spring is arranged between the first slider 401 and the processing table 200. A second slider 400 is sleeved at the bottom of the first slider 401. A spring is connected between the second slider 400 and the first slider 401. A third slider 402 is sleeved inside the second slider 400. A spring is arranged between the third slider 402 and the second slider 400. A cleaning block 204 is also arranged at the bottom of the processing table 200; The detection mechanism includes a first pipeline 501, a hydraulic cavity 505, and a second pipeline 502 opened inside the processing table 200. The hydraulic cavity 505 is communicated with the first pipeline 501. A detection block 500 is sleeved at the bottom of the hydraulic cavity 505. There are multiple groups of detection blocks 500 and they are arranged in a staggered manner to avoid detection blind spots. A ball is arranged at the bottom of the detection block 500. A spring is arranged between the detection block 500 and the hydraulic cavity 505. A piston rod 504 is connected between the first pipeline 501 and the second pipeline 502. A third pipeline 503 is connected to the top of the second pipeline 502. A circuit component for adjusting the motor 201 is arranged inside the processing table 200. A liquid path component for adjusting the flow rate of the liquid pipe 203 is also arranged at the end of the third pipeline 503. A buffer component for delaying the transmission of the liquid path power is also arranged inside the processing table 200.

[0030] It should be noted that the first sliders 401 are symmetrically designed and distributed inside the processing table 200 along the workpiece 300. The third sliders 402 are symmetrically distributed inside the second sliders 400 along the workpiece 300. The third sliders 402 and the second sliders 400 are provided with balls that match the workpiece 300. There are two groups of clamping mechanisms and cleaning blocks 204, which are symmetrically distributed inside the processing table 200 along the grinding head 202.

[0031] Furthermore, the cross-sectional area of the hydraulic cavity 505, the second pipeline 502, and the detection block 500 in the horizontal direction is larger than the cross-sectional area of the first pipeline 501 in the horizontal direction. Piston blocks that are movably sleeved inside the first pipeline 501 and the second pipeline 502 respectively are arranged at both ends of the piston rod 504. The piston rod 504 is movably sleeved with the processing table 200, and both ends of the piston rod 504 are respectively located inside the first pipeline 501 and the second pipeline 502. The piston block arranged at one end of the piston rod 504 drives the liquid inside the first pipeline 501, and the piston block at the other end of the piston rod 504 is driven by the liquid to drive the circuit assembly. The inside of the hydraulic cavity 505 and the third pipeline 503 is filled with hydraulic oil for transmission.

[0032] Refer to Figure 5 , a sealing groove 506 is formed in the side wall of the detection block 500. A secondary piston 507 is sleeved inside the hydraulic cavity 505. The secondary piston 507 is designed in a ring shape. The outside of the secondary piston 507 is movably and sealingly sleeved with the hydraulic cavity 505, and the inside of the secondary piston 507 is movably and sealingly sleeved with the sealing groove 506. A spring is arranged between the secondary piston 507 and the bottom of the hydraulic cavity 505.

[0033] Refer to Figures 4-6 , the buffer assembly includes a buffer cavity 600 formed inside the processing table 200. The inside of the buffer cavity 600 is filled with hydraulic oil. One end of the buffer cavity 600 is communicated with the third pipeline 503, and a transmission rod 605 is sleeved at the other end of the buffer cavity 600. A spring is arranged between the transmission rod 605 and the buffer block 609. A flow guide plate 606 and a buffer block 609 are arranged inside the buffer cavity 600. An inlet 607 and a return port 608 are formed inside the flow guide plate 606. A slider four 601 and a slider five 602 are sleeved at one end of the buffer cavity 600 close to the third pipeline 503. A spring is arranged between the slider four 601 and the slider five 602. A slider six 603 is sleeved on one side of the buffer block 609 facing the inlet 607. A spring is arranged between the slider six 603 and the buffer block 609. A flow-through pipe 604 is arranged inside the buffer block 609. The two ends of the flow-through pipe 604 are respectively communicated with the inlet 607 and the transmission rod 605.

[0034] It should be noted that a one-way valve for making the liquid flow from the slider five 602 to the slider six 603 is arranged inside the inlet 607, and a one-way valve for making the liquid flow from the slider six 603 to the slider five 602 is arranged inside the return port 608. The number of the inlets 607 is larger than the number of the return ports 608, and the flow cross-sectional area of the inlets 607 is larger than the flow cross-sectional area of the return ports 608.

[0035] Refer to Figure 7, the circuit component includes a guide coil 703 provided on the side wall of the transmission rod 605. A first guide block 701 in contact with the guide coil 703 is connected to the side wall of the transmission rod 605. A second guide block 702 is fixedly installed inside the processing table 200. A guide piece in contact with the guide coil 703 is provided on the top of the second guide block 702. The first guide block 701 and the second guide block 702 are electrically connected to the motor 201; Specifically, in the above-mentioned existing sliding rheostat adjustment technology, the first guide block 701 is electrically connected to the control center of the motor 201 through a group of conductance rods or wires, and the second guide block 702 is also electrically connected to the control center of the motor 201 through a group of wires. The first guide block 701 forms an electrical path with the control center of the motor 201 through the guide coil 703, the second guide block 702. As the transmission rod 605 moves, the distance between the first guide block 701 and the second guide block 702 decreases, thereby reducing the length of the guide coil 703 between the first guide block 701 and the second guide block 702 and the corresponding resistance. Thus, the control center of the motor 201 controls the synchronous increase of the rotation speeds of the motor 201 and the grinding head 202 through the changes in resistance and current.

[0036] Refer to Figure 8 , the liquid path component includes an iris mechanism 705 provided inside the liquid pipe 203. A gear ring 700 is provided on the outer side wall of the iris mechanism 705. A rack group 704 meshing with the gear ring 700 is provided on the outer side wall of the transmission rod 605. It should be noted that the iris mechanism 705 is an existing iris adjustment mechanism technology, and the adjustment ring inside the iris mechanism 705 is connected to the gear ring 700.

[0037] The working process of this burr grinding device for high-strength automotive structural parts is as follows: First, fix the workpiece 300 on the surface of the workbench 100, and then adjust the position of the processing table 200 through the electric slider and the slide rail to make the processing table 200 close to the workpiece 300. Further, first adjust the first slider 401 and the third slider 402 away from the workpiece 300 to increase the distance between the third sliders 402, and then move the processing table 200 and through the reset contraction of the third slider 402, the second slider 400, and the first slider 401, clamp the workpiece 300 through the third slider 402 and the second slider 400, and further adjust the position of the processing table 200 to make the grinding head 202 fit the top of the workpiece 300.

[0038] When starting the grinding work, control the processing table 200 to move along the surface of the workpiece 300. First, pre-clean the grinding area through the cleaning block 204. Further, detect the grinding area through the detection block 500. The specific detection process is that the ball at the bottom of the detection block 500 moves along the surface of the workpiece 300, and the burr degree and overall flatness of the surface of the workpiece 300 are detected. When the detection block 500 passes through the burr or uneven convex area, it is pushed upward under the action of the convexity, compressing the inside of the hydraulic cavity 505, and pushing the hydraulic oil inside the hydraulic cavity 505 into the inside of the pipeline 501. Further push the piston rod 504 upward. Since the cross-sectional area of the hydraulic cavity 505 and the top of the detection block 500 in the horizontal direction is larger than the cross-sectional area of the pipeline 501, therefore, the sealing groove 506 moves upward a small distance to control the amount of hydraulic oil pushed into the pipeline 501 by the internal pressure of the hydraulic cavity 505. The cross-sectional area difference between the hydraulic cavity 505 and the pipeline 501 can push the piston rod 504 inside the pipeline 501 to move a greater distance, realizing the amplified feedback of the detection result. The piston rod 504 moves upward, pressurizing the hydraulic oil inside the pipeline 502 and pumping it into the pipeline 503. Through the joint detection and feedback of multiple detection blocks 500, they can be uniformly converged into the pipeline 503 and further enter the buffer cavity 600 to push the slider four 601 in the direction of the guide plate 606. During this process, the slider four 601 first moves in the direction of the slider five 602, compressing the spring between the slider four 601 and the slider five 602, and further pushing the slider four 601 and the slider five 602 to move synchronously in the direction of the guide plate 606, pumping the hydraulic oil between the slider five 602 and the guide plate 606 into the other side of the guide plate 606 through the liquid inlet 607. The pressure on the other side of the guide plate 606 increases. The pumped oil first pushes the slider six 603 and compresses the spring between the slider six 603 and the buffer block 609. Another part slowly flows into the side of the buffer block 609 away from the guide plate 606 through the flow pipe 604 with a smaller flow cross-sectional area to push the transmission rod 605 to move. When the transmission rod 605 is moved in the direction away from the buffer cavity 600, the guide block one 701 moves synchronously with the transmission rod 605 and the coil 703, while the guide block two 702 is fixed and remains in contact with the coil 703, which is equivalent to the design of a sliding rheostat, making the resistance between the guide block one 701 and the guide block two 702 smaller and the current larger. Through the electrical connection of the control center connected to the motor 201, control the motor 201 to increase the rotation speed, and then control the grinding rotation speed of the grinding head 202 to increase, improving the grinding effect on the burr and uneven convex areas. Further, when the transmission rod 605 moves, through the meshing between the rack group 704 and the gear ring 700, drive the adjustment ring inside the iris mechanism 705 driven by the gear ring 700 to rotate, drive the blades inside the iris mechanism 705 to rotate, increase the flow cross-sectional area of the iris mechanism 705 area, and further adjust the liquid spraying amount at the end of the liquid pipe 203.It realizes adjusting the rotation speed of the grinding head 202 and the liquid spraying amount of the liquid pipe 203 according to the convex degree of the workpiece 300.

[0039] It should be noted that after the cutting work starts, the clamping effect of the workpiece 300 by the second slider 400, the first slider 401 and the third slider 402 can provide a certain supporting effect for the workpiece 300 during the grinding process. Especially after the support far from the fixed point of the workbench 100, the component force of the grinding force can be reduced through bilateral synchronous clamping. At the same time, through the elastic design of the second slider 400, the first slider 401 and the third slider 402, the vibration transmission between the processing table 200 and the workpiece 300 can be attenuated, the chatter marks can be reduced, and the surface finish can be improved. At the same time, during intermittent grinding, such as multi-convex burrs, the micro-displacement of the elastic clamping can buffer the impact force, maintain the clamping stability, avoid uneven grinding caused by the instantaneous displacement of the workpiece, and improve the overall quality of grinding.

[0040] It should be noted that during the surface detection of the workpiece 300 by the detection block 500, when the overall uneven convex degree or the convex degree of the burr on the surface of the workpiece 300 is small, the distance that the detection block 500 moves upward is small. The third pipeline 503 makes corresponding feedback adjustments to the rotation speed of the grinding head 202 and the liquid discharge amount of the liquid pipe 203 through the amplification and summary of the detection results of each group of detection blocks 500. At this time, the distance that the detection block 500 moves upward is less than the opening length of the sealing groove 506. When the detection block 500 moves upward, the bottom of the sealing groove 506 will not contact the secondary piston 507 either; when there are burrs or convex points with a large convex degree on the surface of the workpiece 300, when the detection block 500 passes by, the distance that the detection block 500 moves upward is large. After the bottom of the sealing groove 506 of the detection block 500 contacts the secondary piston 507, when the detection block 500 continues to move upward, it can drive the secondary piston 507 to move upward synchronously. At this time, the reduction of the hydraulic oil volume inside the hydraulic cavity 505 caused by the upward movement of the detection block 500 is equivalent to the product of the sum of the cross-sectional areas of the detection block 500 and the secondary piston 507 in the horizontal direction and the displacement of the detection block 500. Compared with the single movement of the detection block 500, the volume of the hydraulic oil entering the first pipeline 501 can be significantly increased, realizing the further amplification of the surface detection results of the workpiece 300, realizing the non-linear response of the detection block 500 to the surface detection of the workpiece 300. The greater the convex degree, the greater the feedback degree. In this way, even if the surface of the workpiece 300 is relatively flat as a whole and the detection feedback of the detection block 500 is small, as long as an independent burr exceeding the threshold is detected, the multi-stage amplification feedback detection of the larger burr can be carried out, improving the overall feedback result of the third pipeline 503, and then adjusting the grinding head 202 and the liquid pipe 203 according to the feedback result, ensuring the feedback degree of the independent burr detection to the overall detection result during the overall detection, and ensuring the quality of the overall processing of the workpiece 300.

[0041] It should be noted that, in the process of the increased pressure in pipeline three 503 pushing slider four 601 and slider five 602 to move and pumping hydraulic oil into the guide plate 606 away from the side of slider five 602, through the first movement and compression of slider six 603 and the low flow rate of circulation tube 604, the detection block 500 can detect the pressure of the protrusion and feedback it to the buffer block 609 through pipeline three 503. Through the gradual release of slider six 603 and the low-speed flow of circulation tube 604, the feedback pressure is delayed and transmitted to the transmission rod 605. Through the delayed feedback of transmission rod 605, the circuit components and liquid circuit components can delay feedback, so that the feedback is converted into a change in the rotation speed of the grinding head 202 and the change in the liquid output of the liquid pipe 203 only after the subsequent grinding head 202 passes through the detection area, so that when the grinding head 202 and the liquid pipe 203 pass through the detection area, they are automatically adjusted to the appropriate rotation speed and liquid output size.

[0042] It should be noted that when the detection block 500 is reset, the slider four 601 is driven to reset quickly through the pipeline three 503. After the slider four 601 is reset, the spring between the slider four 601 and the slider five 602 is stretched, so that the slider five 602 is delayed and slowly reset. Under the reset action of the slider five 602, the oil inside the buffer block 609 cooperates with the reset of the slider six 603 and the transmission rod 605 to slowly discharge the oil inside the buffer block 609 to the slider five 602 through the reflux port 608 to achieve reset. After the detection block 500 is reset, the slider five 602 and the corresponding transmission rod 605 are slowly delayed to reset, providing a buffer time for the delayed feedback and reset of the grinding head 202 and the liquid pipe 203, thereby ensuring the correspondence between the detection area and the feedback of the grinding head 202 and the liquid pipe 203.

[0043] It should be noted that when the burr protrusion is high or there are many burrs on the overall protrusions, the grinding amount increases, and the grinding head 202 needs a higher cutting force and rotation speed to grind the burrs, thereby improving the removal efficiency of burrs and protrusions, avoiding repeated grinding, and improving processing efficiency. At the same time, the cooling of the cutting fluid flow by the liquid pipe 203 increases, which can improve the cooling of the grinding head 202 and the anti-stick knife cleaning effect; when the burr protrusion is small, it is necessary to reduce the rotation speed and cutting fluid supply to avoid excessive cutting fluid affecting the grinding stability of the contact area between the grinding head 202 and the workpiece 300, resulting in reduced grinding accuracy and other problems.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A burr grinding device for a high-strength automotive structural component, comprising a workbench (100) and a workpiece (300). A processing table (200) is arranged on the workbench (100). A motor (201) and a liquid pipe (203) are connected inside the processing table (200). The output end of the motor (201) is connected to a grinding head (202), characterized in that, It also includes a clamping mechanism and a detection mechanism arranged at the bottom of the processing table (200); The clamping mechanism includes a first slider (401) slidably connected to the inside of the processing table (200). A spring is arranged between the first slider (401) and the processing table (200). A second slider (400) is sleeved at the bottom of the first slider (401). A spring is connected between the second slider (400) and the first slider (401). A third slider (402) is sleeved inside the second slider (400). A spring is arranged between the third slider (402) and the second slider (400). A cleaning block (204) is also arranged at the bottom of the processing table (200); The detection mechanism includes a first pipeline (501), a hydraulic cavity (505), and a second pipeline (502) opened inside the processing table (200). The hydraulic cavity (505) is communicated with the first pipeline (501). A detection block (500) is sleeved at the bottom of the hydraulic cavity (505). A ball is arranged at the bottom of the detection block (500). A spring is arranged between the detection block (500) and the hydraulic cavity (505). A piston rod (504) is connected between the first pipeline (501) and the second pipeline (502). A third pipeline (503) is connected to the top of the second pipeline (502). A circuit component for adjusting the motor (201) is arranged inside the processing table (200). A liquid path component for adjusting the flow rate of the liquid pipe (203) is also arranged at the end of the third pipeline (503). A buffer component for delaying the transmission of the liquid path power is arranged inside the processing table (200).

2. The deburring device for a high-strength automotive structural component according to claim 1, wherein, The first sliders (401) are symmetrically designed and distributed inside the processing table (200) along the workpiece (300). The third sliders (402) are symmetrically distributed inside the second sliders (400) along the workpiece (300). The third sliders (402) and the second sliders (400) are provided with balls that cooperate with the workpiece (300). There are two groups of the clamping mechanism and the cleaning block (204), which are symmetrically distributed inside the processing table (200) along the grinding head (202).

3. The deburring device for a high-strength automotive structural part according to claim 1, characterized in that, The horizontal cross-sectional areas of the hydraulic cavity (505), the second pipeline (502), and the detection block (500) are larger than the horizontal cross-sectional area of the first pipeline (501). Piston blocks that are respectively movably sleeved inside the first pipeline (501) and the second pipeline (502) are arranged at both ends of the piston rod (504). The inside of the hydraulic cavity (505) and the third pipeline (503) is filled with hydraulic oil for transmission.

4. The deburring device for a high-strength automotive structural part according to claim 1, wherein, A sealing groove (506) is opened on the side wall of the detection block (500). A secondary piston (507) is sleeved inside the hydraulic cavity (505). The secondary piston (507) is of an annular design. The outside of the secondary piston (507) is sealingly and movably sleeved with the hydraulic cavity (505). The inside of the secondary piston (507) is sealingly and movably sleeved with the sealing groove (506). A spring is arranged between the secondary piston (507) and the bottom of the hydraulic cavity (505).

5. A burr grinding device for a high-strength automotive structural part according to claim 1, characterized in that, The buffer assembly includes a buffer chamber (600) opened inside the processing table (200). The buffer chamber (600) is filled with hydraulic oil. One end of the buffer chamber (600) is communicated with pipeline three (503). The other end of the buffer chamber (600) is sleeved with a transmission rod (605). A flow guide plate (606) and a buffer block (609) are arranged inside the buffer chamber (600). An inlet (607) and a return port (608) are opened inside the flow guide plate (606). One end of the buffer chamber (600) close to pipeline three (503) is sleeved with slider four (601) and slider five (602). A spring is arranged between the slider four (601) and the slider five (602). One side of the buffer block (609) facing the inlet (607) is sleeved with a slider six (603). A spring is arranged between the slider six (603) and the buffer block (609). A flow-through pipe (604) is arranged inside the buffer block (609). The two ends of the flow-through pipe (604) are respectively communicated with the inlet (607) and the transmission rod (605).

6. The deburring device for a high-strength automotive structural component according to claim 5, characterized in that, A one-way valve for enabling the liquid to flow from the slider five (602) to the slider six (603) is arranged inside the inlet (607). A one-way valve for enabling the liquid to flow from the slider six (603) to the slider five (602) is arranged inside the return port (608). The number of the inlets (607) is greater than that of the return ports (608), and the flow cross-sectional area of the inlets (607) is greater than that of the return ports (608).

7. A burr grinding device for a high-strength automotive structural part according to claim 5, characterized in that, The circuit assembly includes a guide coil (703) arranged on the side wall of the transmission rod (605). A guide block one (701) in contact with the guide coil (703) is connected to the side wall of the transmission rod (605). A guide block two (702) is fixedly installed inside the processing table (200). A guide piece in contact with the guide coil (703) is arranged on the top of the guide block two (702). The guide block one (701) and the guide block two (702) are electrically connected to the motor (201).

8. The deburring device for a high-strength automotive structural part according to claim 5, characterized in that, The liquid circuit assembly includes an iris mechanism (705) arranged inside the liquid pipe (203). A gear ring (700) is arranged on the outer side wall of the iris mechanism (705). A rack group (704) meshing with the gear ring (700) is arranged on the outer side wall of the transmission rod (605).

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