A burr grinding device for high-strength automobile structural parts

Abstract

The present invention discloses a burr grinding device for high-strength automotive structural parts, which belongs to the field of mechanical grinding technology. The device comprises a workbench and a workpiece. The workbench is provided with a processing table, the processing table is internally connected to a motor and a liquid pipe, the output end of the motor is connected to a grinding head, and the device further comprises a clamping mechanism and a detection mechanism provided at the bottom of the processing table. In the present invention, during the grinding process, the elastic clamping of the workpiece by sliders 2, 1 and 3 can attenuate the vibration transmission between the processing table and the workpiece, reduce chatter marks, and improve the surface finish. During the grinding process, the protrusion degree of the grinding area is pre-detected by the detection block. When the grinding head subsequently passes through the detection area, the rotation speed of the grinding head and the spray volume of the liquid pipe are adjusted by the transmission rod, thereby realizing adaptive and automatic adjustment of the grinding head and the liquid pipe according to the pre-detection result of the workpiece, thereby ensuring the efficiency of grinding and the quality of the grinding work.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical grinding, in particular to a burr grinding device for high-strength automobile structural parts. Background Art

[0002] High-strength automotive structural parts, such as high-strength components formed by stamping with hot-formed steel, are prone to rapid crack expansion and formation of sharp burrs during stamping due to the poor plasticity and low elongation of high-strength materials. The burrs on the components will cause a significant increase in the stress concentration factor, resulting in stress concentration or accelerated crack propagation speed during collision, affecting overall safety. Therefore, the burrs need to be polished and removed later.

[0003] The existing technology for burr removal generally fixes the structural parts on the processing table, and then grinds the surface of the parts with a grinding wheel or a grinding head. However, for some long parts, when grinding away from the fixed area, the grinding force and vibration generated by the grinding tool can easily cause the parts to vibrate synchronously, which can easily produce chatter marks on the surface of the components, affecting the overall surface finish and grinding quality of the components.

[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] In order 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 raised by the above background technology.

[0006] The present invention is achieved in that:

[0007] The present invention provides a burr grinding device for high-strength automotive structural parts, comprising a workbench and a workpiece, wherein a processing table is provided on the workbench, a motor and a liquid pipe are connected to the processing table, an output end of the motor is connected to a grinding head, and the device further comprises a clamping mechanism and a detection mechanism provided at the bottom of the processing table;

[0008] The clamping mechanism includes a slider 1 slidably connected to the inside of the processing table, a spring is provided between the slider 1 and the processing table, a slider 2 is sleeved on the bottom of the slider 1, a spring is connected to the slider 2 and the slider 1, a slider 3 is sleeved inside the slider 2, a spring is provided between the slider 3 and the slider 2, and a cleaning block is also provided at the bottom of the processing table;

[0009] The detection mechanism includes pipeline one, a hydraulic chamber, and pipeline two, which are opened inside the processing table. The hydraulic chamber is connected to pipeline one. A detection block is sleeved on the bottom of the hydraulic chamber. A ball is provided at the bottom of the detection block. A spring is provided between the detection block and the hydraulic chamber. A piston rod is connected between pipeline one and pipeline two. The top of pipeline two is connected to pipeline three. A circuit component for adjusting the motor is provided inside the processing table. A liquid circuit component for adjusting the liquid pipe flow is also provided at the end of pipeline three. A buffer component for delaying the transmission of liquid circuit power is also provided inside the processing table.

[0010] Preferably, slider one is symmetrically designed and distributed along the workpiece inside the processing table, slider three is symmetrically distributed along the workpiece inside slider two, slider three and slider two are provided with ball bearings that cooperate with the workpiece, and two groups of clamping mechanisms and cleaning blocks are provided, which are symmetrically distributed along the grinding head inside the processing table.

[0011] Preferably, the cross-sectional area of ​​the hydraulic chamber, pipeline 2 and the detection block in the horizontal direction is larger than the cross-sectional area of ​​pipeline 1 in the horizontal direction, and piston blocks are provided at both ends of the piston rod, which are movably connected to the interior of pipeline 1 and pipeline 2 respectively, and the interior of the hydraulic chamber and pipeline 3 is filled with hydraulic oil for transmission.

[0012] Preferably, a sealing groove is provided on the side wall of the detection block, and a secondary piston is sleeved inside the hydraulic chamber. The secondary piston is annular in design, and the outer side of the secondary piston is sealingly and movably sleeved with the hydraulic chamber, and the inner side of the secondary piston is sealingly and movably sleeved with the sealing groove. A spring is provided between the secondary piston and the bottom of the hydraulic chamber.

[0013] Preferably, the buffer assembly includes a buffer chamber opened inside the processing table, the interior of the buffer chamber is filled with hydraulic oil, one end of the buffer chamber is connected to pipeline three, the other end of the buffer chamber is sleeved with a transmission rod, the interior of the buffer chamber is provided with a guide plate and a buffer block, the interior of the guide plate is provided with a liquid inlet and a reflux port, the end of the buffer chamber close to pipeline three is sleeved with slider four and slider five, a spring is provided between slider four and slider five, the side of the buffer block facing the liquid inlet is sleeved with slider six, a spring is provided between slider six and the buffer block, the interior of the buffer block is provided with a flow pipe, and the openings at both ends of the flow pipe are respectively connected to the liquid inlet and the transmission rod.

[0014] Preferably, a one-way valve is provided inside the liquid inlet to allow the liquid to flow from slider five to slider six, and a one-way valve is provided inside the reflux port to allow the liquid to flow from slider six to slider five. The number of liquid inlets is greater than the number of reflux ports, and the flow cross-sectional area of ​​the liquid inlet is greater than the flow cross-sectional area of ​​the reflux port.

[0015] Preferably, the circuit assembly includes a conductor coil arranged on the side wall of the transmission rod, the side wall of the transmission rod is connected to a guide block 1 that contacts the conductor coil, a guide block 2 is fixedly installed inside the processing table, a guide plate that contacts the conductor coil is provided on the top of the guide block 2, and the guide block 1 and the guide block 2 are electrically connected to the motor.

[0016] Preferably, the liquid circuit assembly includes an iris mechanism arranged inside the liquid tube, the outer wall of the iris mechanism is provided with a gear ring, and the outer wall of the transmission rod is provided with a rack set meshing with the gear ring.

[0017] In summary, the beneficial effects of the present invention are:

[0018] 1. During the grinding process, the elastic clamping of the workpiece by sliders 2, 1 and 3 can attenuate the vibration transmission between the processing table and the workpiece, reduce chatter marks and improve the surface finish. At the same time, during the grinding process, the degree of protrusion of the grinding area is pre-detected by the detection block. The cross-sectional area difference between the detection block and pipeline 1 is used to amplify the detection result through the liquid transmission. The feedback result is transmitted to the transmission rod through the buffering of slider 6 and the low-speed circulation of the circulation tube to achieve delayed feedback. When the grinding head passes through the detection area later, the rotation speed of the grinding head and the spray volume of the liquid pipe are adjusted by the transmission rod, thereby realizing adaptive automatic adjustment of the grinding head and the liquid pipe according to the pre-detection result of the workpiece, thereby ensuring the efficiency of grinding and the quality of the grinding work.

[0019] 2. When burrs or bumps with a large degree of protrusion are detected on the surface of the workpiece, the volume of hydraulic oil entering the pipeline is significantly increased through the cooperation of the sealing groove and the secondary piston, thereby further amplifying the detection results of the workpiece surface and realizing the nonlinear response of the detection block to the surface detection of the workpiece. The greater the degree of protrusion, the greater the degree of feedback. While conducting the overall detection, the feedback degree of independent burr detection on the overall detection result is guaranteed, thereby ensuring the overall processing quality of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is an overall schematic diagram of a workbench provided in an embodiment of the present invention.

[0022] Figure 2 It is an overall schematic diagram of the processing platform provided in an embodiment of the present invention.

[0023] Figure 3 It is a schematic side view of a processing table provided in an embodiment of the present invention.

[0024] Figure 4 It is an overall schematic diagram of the detection mechanism provided by the embodiment of the present invention.

[0025] Figure 5 It is a schematic diagram of the interior of the hydraulic chamber provided by an embodiment of the present invention.

[0026] Figure 6 Schematic diagram of a buffer assembly provided in an embodiment of the present invention.

[0027] Figure 7 Schematic diagram of a circuit assembly provided by an embodiment of the present invention.

[0028] Figure 8 It is a schematic diagram of the interior of the iris mechanism provided in an embodiment of the present invention.

[0029] Figure 9 It is an overall schematic diagram of the clamping mechanism provided in an embodiment of the present invention.

[0030] Figure 10 2 is a schematic cross-sectional view of a secondary piston provided in an embodiment of the present invention.

[0031] Legend:

[0032] 100, workbench; 200, processing table; 201, motor; 202, grinding head; 203, liquid pipe; 204, cleaning block; 300, workpiece; 400, slider 2; 401, slider 1; 402, slider 3; 500, detection block; 501, pipeline 1; 502, pipeline 2; 503, pipeline 3; 504, piston rod; 505, hydraulic chamber; 506, sealing groove; 50 7. Secondary piston; 600. Buffer chamber; 601. Slider 4; 602. Slider 5; 603. Slider 6; 604. Flow tube; 605. Transmission rod; 606. Guide plate; 607. Liquid inlet; 608. Return port; 609. Buffer block; 700. Gear ring; 701. Guide block 1; 702. Guide block 2; 703. Conductor coil; 704. Rack assembly; 705. Iris mechanism. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0034] Reference Figure 1-9The present invention provides a burr grinding device for high-strength automotive structural parts, including a worktable 100 and a workpiece 300. A processing table 200 is provided on the worktable 100. A motor 201 and a liquid pipe 203 are connected to the processing table 200. The liquid pipe 203 is connected to an external liquid supply pipe for providing grinding coolant for grinding work. The output end of the motor 201 is connected to a grinding head 202. An electric slide rail is provided on the worktable 100. The processing table 200 is connected to the worktable 100 via an electric slider provided on the electric slide rail. The device also includes a clamping mechanism and a detection mechanism provided at the bottom of the processing table 200.

[0035] The clamping mechanism includes a slider 1 401 slidably connected to the interior of the processing table 200. Specifically, a set of sleeve rods are provided inside the processing table 200. The slider 1 401 is slidably connected to the sleeve rods. A spring between the slider 1 401 and the processing table 200 is provided on the outside of the sleeve rods. A spring is provided between the slider 1 401 and the processing table 200. The bottom of the slider 1 401 is sleeved with the slider 2 400. The slider 2 400 is connected to the slider 1 401 by a spring. The interior of the slider 2 400 is sleeved with the slider 3 402. A spring is provided between the slider 3 402 and the slider 2 400. A cleaning block 204 is also provided at the bottom of the processing table 200.

[0036] The detection mechanism includes pipeline one 501, a hydraulic chamber 505, and pipeline two 502, which are opened inside the processing table 200. The hydraulic chamber 505 is connected to pipeline one 501. The bottom of the hydraulic chamber 505 is sleeved with a detection block 500. The detection blocks 500 are designed with multiple groups and are staggered to avoid detection blind spots. Balls are provided at the bottom of the detection block 500, and a spring is provided between the detection block 500 and the hydraulic chamber 505. A piston rod 504 is connected between pipeline one 501 and pipeline two 502, and the top of pipeline two 502 is connected to pipeline three 503. A circuit component for adjusting the motor 201 is provided inside the processing table 200, and a liquid circuit component for adjusting the flow of the liquid pipe 203 is also provided at the end of pipeline three 503. A buffer component for delaying the transmission of the liquid circuit power is also provided inside the processing table 200.

[0037] It should be noted that slider one 401 is symmetrically designed and distributed along the workpiece 300 inside the processing table 200, slider three 402 is symmetrically distributed along the workpiece 300 inside slider two 400, slider three 402 and slider two 400 are provided with ball bearings that cooperate with the workpiece 300, and two groups of clamping mechanisms and cleaning blocks 204 are provided, which are symmetrically distributed along the grinding head 202 inside the processing table 200.

[0038] Furthermore, the cross-sectional area of ​​the hydraulic chamber 505, pipeline 2 502 and detection block 500 in the horizontal direction is larger than the cross-sectional area of ​​pipeline 1 501 in the horizontal direction, and piston blocks are provided at both ends of the piston rod 504, which are movably connected to the inside of pipeline 1 501 and pipeline 2 502 respectively. The piston rod 504 is movably connected to the processing table 200, and the two ends of the piston rod 504 are respectively located inside pipeline 1 501 and pipeline 2 502. The piston block arranged at one end of the piston rod 504 transmits the liquid inside pipeline 1 501, and the piston block at the other end of the piston rod 504 transmits the liquid to the circuit component through the liquid. The interior of the hydraulic chamber 505 and pipeline 3 503 is filled with hydraulic oil for transmission.

[0039] Reference Figure 5 A sealing groove 506 is provided on the side wall of the detection block 500, and a secondary piston 507 is sleeved inside the hydraulic chamber 505. The secondary piston 507 is annular in design, and the outer side of the secondary piston 507 is sealed and movably sleeved with the hydraulic chamber 505, and the inner side of the secondary piston 507 is sealed and movably sleeved with the sealing groove 506. A spring is provided between the secondary piston 507 and the bottom of the hydraulic chamber 505.

[0040] Reference Figure 4-6 The buffer assembly includes a buffer chamber 600 opened inside the processing table 200, the interior of the buffer chamber 600 is filled with hydraulic oil, one end of the buffer chamber 600 is connected to the pipeline three 503, the other end of the buffer chamber 600 is sleeved with a transmission rod 605, a spring is arranged between the transmission rod 605 and the buffer block 609, the interior of the buffer chamber 600 is provided with a guide plate 606 and a buffer block 609, the interior of the guide plate 606 is provided with a liquid inlet 607 and a reflux port 608, the end of the buffer chamber 600 close to the pipeline three 503 is sleeved with a slider four 601 and a slider five 602, a spring is arranged between the slider four 601 and the slider five 602, the side of the buffer block 609 facing the liquid inlet 607 is sleeved with a slider six 603, a spring is arranged between the slider six 603 and the buffer block 609, the interior of the buffer block 609 is provided with a flow pipe 604, and the openings at both ends of the flow pipe 604 are respectively connected to the liquid inlet 607 and the transmission rod 605.

[0041] It should be noted that a one-way valve is provided inside the liquid inlet 607 to allow the liquid to flow from slider five 602 toward slider six 603, and a one-way valve is provided inside the reflux port 608 to allow the liquid to flow from slider six 603 toward slider five 602. The number of liquid inlets 607 is greater than the number of reflux ports 608, and the flow cross-sectional area of ​​the liquid inlet 607 is greater than the flow cross-sectional area of ​​the reflux port 608.

[0042] Reference Figure 7The circuit assembly includes a conductive coil 703 disposed on the side wall of the transmission rod 605. A guide block 1 701 in contact with the conductive coil 703 is connected to the side wall of the transmission rod 605. A guide block 2 702 is fixedly installed inside the processing table 200. A guide piece in contact with the conductive coil 703 is provided on the top of the guide block 202. The guide blocks 1 701 and 702 are electrically connected to the motor 201.

[0043] Specifically, in the above-mentioned existing sliding variable resistance adjustment technology, guide block 1 701 is electrically connected to the control center of motor 201 through a group of conductive rods or wires, and guide block 2 702 is also electrically connected to the control center of motor 201 through a group of wires. Guide block 1 701 forms a group of electrical paths through the conductive coil 703 and guide block 2 702 and the control center of motor 201. As the transmission rod 605 moves, the distance between guide block 1 701 and guide block 2 702 decreases, thereby making the length of the conductive coil 703 between guide block 1 701 and guide block 2 702 and the corresponding resistance smaller, thereby controlling the speed of motor 201 and grinding head 202 to increase synchronously through the change in resistance and current through the control center of motor 201.

[0044] Reference Figure 8 The liquid circuit assembly includes an iris mechanism 705 arranged inside the liquid tube 203. The outer wall of the iris mechanism 705 is provided with a gear ring 700, and the outer wall of the transmission rod 605 is provided with a rack group 704 engaged with the gear ring 700. It should be noted that the iris mechanism 705 is an existing iris adjustment mechanism technology, wherein the adjustment ring inside the iris mechanism 705 is connected to the gear ring 700.

[0045] The working process of the burr grinding device for high-strength automotive structural parts is as follows:

[0046] First, fix the workpiece 300 on the surface of the workbench 100, and then adjust the position of the processing table 200 by the electric slider and the slide rail so that the processing table 200 is close to the workpiece 300. Furthermore, first adjust slider one 401 and slider three 402 away from the workpiece 300 to increase the distance between slider three 402. Then move the processing table 200 and through the reset and contraction of slider three 402, slider two 400 and slider one 401, clamp the workpiece 300 by slider three 402 and slider two 400, and further adjust the position of the processing table 200 so that the grinding head 202 fits with the top of the workpiece 300.

[0047] When the grinding work starts, the processing table 200 is controlled to move along the surface of the workpiece 300. First, the grinding area is pre-cleaned by the cleaning block 204. Further, the grinding area is inspected by the detection block 500. The specific inspection process is that the ball at the bottom of the detection block 500 moves along the surface of the workpiece 300 to detect the burr degree and overall flatness of the surface of the workpiece 300. When the detection block 500 passes through the burr or uneven raised area, it is pushed upward by the action of the protrusion, compressing the inside of the hydraulic chamber 505, pushing the hydraulic oil inside the hydraulic chamber 505 into the inside of the pipeline 1 501, and further pushing the piston rod 504 upward. Due to the cross-sectional area of ​​the hydraulic chamber 505 and the top of the detection block 500 in the horizontal direction It is larger than the cross-sectional area of ​​pipeline 1 501. Therefore, the sealing groove 506 moves up a short distance, and the pressure inside the hydraulic chamber 505 pushes the amount of hydraulic oil pumped into the pipeline 1 501. The cross-sectional area difference between the hydraulic chamber 505 and the pipeline 1 501 can push the piston rod 504 inside the pipeline 1 501 to move a larger distance, thereby realizing the amplified feedback of the detection result. The piston rod 504 moves up, and the hydraulic oil inside the pipeline 2 502 is pressurized and pumped into the pipeline 3 503. Through the joint detection feedback of multiple groups of detection blocks 500, it can be uniformly gathered into the pipeline 3 503, and further enter the buffer chamber 600 to push the slider 4 601 toward the guide plate 606. In this process, the slider 4 601 first moves toward the slider 5 602. , compressing the spring between slider four 601 and slider five 602, further pushing slider four 601 and slider five 602 to move synchronously toward the guide plate 606, and pumping the hydraulic oil between slider five 602 and 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, and the pumped oil first pushes slider six 603 and compresses the spring between slider six 603 and buffer block 609. The other part slowly flows into the buffer block 609 away from the side of the guide plate 606 through the flow pipe 604 with a smaller flow cross-sectional area, pushing the transmission rod 605 to move. When the transmission rod 605 is moved in the direction away from the buffer chamber 600, the guide block one 701 moves synchronously with the transmission rod 605 and the conductor coil 703. , while the second guide block 702 is fixed and maintains contact with the conductive coil 703, which is equivalent to a set of sliding rheostat designs, so that the resistance between the first guide block 701 and the second guide block 702 becomes smaller, and the current increases. The electrical connection with the control center connected to the motor 201 controls the speed of the motor 201 to increase, and then controls the grinding speed of the grinding head 202 to increase, thereby improving the grinding effect on burrs and uneven areas. Furthermore, when the transmission rod 605 moves, the engagement between the rack assembly 704 and the gear ring 700 drives the gear ring 700 to drive the adjustment ring inside the iris mechanism 705 to rotate, driving the blades inside the iris mechanism 705 to rotate, increasing the flow cross-sectional area of ​​the iris mechanism 705 area, and further adjusting the spray volume at the end of the liquid pipe 203.The rotation speed of the grinding head 202 and the amount of liquid sprayed from the liquid pipe 203 can be adjusted according to the degree of protrusion of the workpiece 300.

[0048] It should be noted that after the cutting work starts, the clamping effect of slider 2 400, slider 1 401 and slider 3 402 on the workpiece 300 can provide a certain support effect for the workpiece 300 during the grinding process, especially after being supported away from the fixed point of the workbench 100, the component of the grinding force can be reduced through bilateral synchronous clamping. At the same time, the elastic design of slider 2 400, slider 1 401 and slider 3 402 can attenuate the vibration transmission between the processing table 200 and the workpiece 300, reduce chatter marks, and improve surface finish. At the same time, during intermittent grinding, such as multi-bump burrs, the slight displacement of the elastic clamping can buffer the impact force, maintain clamping stability, avoid uneven grinding depth caused by instantaneous displacement of the workpiece, and improve the overall quality of grinding.

[0049] It should be noted that during the surface inspection of the workpiece 300 by the detection block 500, when the overall unevenness or bulge of the surface of the workpiece 300 is small, the distance that the detection block 500 is pushed upward is small. The pipeline 3 503 makes corresponding feedback adjustments to the rotation speed of the grinding head 202 and the discharge volume of the liquid pipe 203 by amplifying and summarizing the detection results of each group of detection blocks 500. At this time, the distance 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; when there are burrs or bumps with a large degree of protrusion on the surface of the workpiece 300, the detection block 500 moves upward a large distance. After the detection block 500 moves up to the bottom of the sealing groove 506 and contacts the secondary piston 507, the detection block 500 continues to move upward to drive the secondary piston 507 to move upward synchronously. At this time, the upward movement of the detection block 500 causes the hydraulic chamber 506 to move upward. 05 The amount of hydraulic oil reduced inside 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 movement of the detection block 500 alone, the volume of hydraulic oil entering the pipeline 1 501 can be significantly increased, thereby further amplifying the surface detection results of the workpiece 300 and realizing the nonlinear response of the detection block 500 to the surface detection of the workpiece 300. The greater the degree of protrusion, the greater the degree of feedback. 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 independent burrs exceeding the threshold are detected, multi-level amplification feedback detection can be performed on the larger burrs to improve the overall feedback result of the pipeline 3 503, and then the grinding head 202 and the liquid pipe 203 are adjusted according to the feedback result. While performing the overall detection, the feedback degree of the independent burr detection on the overall detection result is guaranteed, thereby ensuring the quality of the overall processing of the workpiece 300.

[0050] 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 initial 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 bump and transmit 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 a change in the liquid output of the liquid pipe 203 only after the subsequent grinding head 202 passes through the detection area, so that the grinding head 202 and the liquid pipe 203 automatically adjust to the appropriate rotation speed and liquid output when passing through the detection area.

[0051] 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 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.

[0052] It should be noted that when the burr protrusion is high or there are many burrs on the whole, the grinding amount increases, and the grinding head 202 needs a higher cutting force and rotation speed to grind the burrs, thereby improving the efficiency of removing burrs and protrusions, avoiding repeated grinding, and improving processing efficiency. At the same time, the increase in the flow rate of the cooling cutting fluid of the liquid pipe 203 can improve the cooling of the grinding head 202 and the anti-sticking 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 problems such as reduced grinding accuracy.

[0053] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A burr grinding device for high-strength automotive structural parts, comprising a workbench (100) and a workpiece (300), wherein a processing table (200) is provided on the workbench (100), a motor (201) and a liquid pipe (203) are connected to the processing table (200), and a grinding head (202) is connected to the output end of the motor (201), 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 slider (401) slidably connected to the inside of the processing table (200), a spring is provided between the slider (401) and the processing table (200), a slider (400) is sleeved on the bottom of the slider (401), a spring is connected between the slider (400) and the slider (401), a slider (402) is sleeved on the inside of the slider (400), a spring is provided between the slider (402) and the slider (400), and a cleaning block (204) is also provided at the bottom of the processing table (200); The detection mechanism includes a pipeline (501), a hydraulic chamber (505), and a pipeline (502) opened inside the processing table (200), the hydraulic chamber (505) is communicated with the pipeline (501), the bottom of the hydraulic chamber (505) is sleeved with a detection block (500), the bottom of the detection block (500) is provided with a ball, a spring is provided between the detection block (500) and the hydraulic chamber (505), a piston rod (504) is connected between the pipeline (501) and the pipeline (502), the top of the pipeline (502) is connected to the pipeline (503), a circuit component for adjusting the motor (201) is provided inside the processing table (200), a liquid circuit component for adjusting the flow of the liquid pipe (203) is also provided at the end of the pipeline (503), and a buffer component for delaying the transmission of the liquid circuit power is also provided inside the processing table (200); The buffer assembly includes a buffer chamber (600) provided inside the processing table (200), the interior of the buffer chamber (600) is filled with hydraulic oil, one end of the buffer chamber (600) is connected to the pipeline three (503), the other end of the buffer chamber (600) is sleeved with a transmission rod (605), the interior of the buffer chamber (600) is provided with a guide plate (606) and a buffer block (609), the interior of the guide plate (606) is provided with a liquid inlet (607) and a return port (608), and the buffer chamber (600) is close to the hydraulic oil. One end of the pipeline three (503) is sleeved with a slider four (601) and a slider five (602), a spring is provided between the slider four (601) and the slider five (602), the side of the buffer block (609) facing the liquid inlet (607) is sleeved with a slider six (603), a spring is provided between the slider six (603) and the buffer block (609), a flow tube (604) is provided inside the buffer block (609), and the openings at both ends of the flow tube (604) are respectively connected to the liquid inlet (607) and the transmission rod (605).

2. The burr grinding device for high-strength automotive structural parts according to claim 1, characterized in that: The slider 1 (401) is symmetrically designed and distributed along the workpiece (300) inside the processing table (200), and the slider 3 (402) is symmetrically distributed along the workpiece (300) inside the slider 2 (400). The slider 3 (402) and the slider 2 (400) are provided with balls that match the workpiece (300). The clamping mechanism and the cleaning block (204) are provided in two groups and are symmetrically distributed along the grinding head (202) inside the processing table (200).

3. The burr grinding device for high-strength automotive structural parts according to claim 1, characterized in that: The cross-sectional area of ​​the hydraulic chamber (505), pipeline 2 (502) and detection block (500) in the horizontal direction is larger than the cross-sectional area of ​​pipeline 1 (501) in the horizontal direction. The two ends of the piston rod (504) are provided with piston blocks that are movably connected to the interior of pipeline 1 (501) and pipeline 2 (502) respectively. The interior of the hydraulic chamber (505) and pipeline 3 (503) is filled with hydraulic oil for transmission.

4. The burr grinding device for high-strength automotive structural parts according to claim 1, characterized in that: The side wall of the detection block (500) is provided with a sealing groove (506), and the interior of the hydraulic chamber (505) is sleeved with a secondary piston (507). The secondary piston (507) is annular in design. The outer side of the secondary piston (507) is sealingly and movably sleeved with the hydraulic chamber (505), and the inner side of the secondary piston (507) is sealingly and movably sleeved with the sealing groove (506). A spring is provided between the secondary piston (507) and the bottom of the hydraulic chamber (505).

5. The burr grinding device for high-strength automotive structural parts according to claim 1, characterized in that: The liquid inlet (607) is provided with a one-way valve inside to allow liquid to flow from slider five (602) toward slider six (603), and the reflux port (608) is provided with a one-way valve inside to allow liquid to flow from slider six (603) toward slider five (602). The number of the liquid inlets (607) is greater than the number of the reflux ports (608), and the flow cross-sectional area of ​​the liquid inlet (607) is greater than the flow cross-sectional area of ​​the reflux port (608).

6. The burr grinding device for high-strength automotive structural parts according to claim 1, characterized in that: The circuit assembly includes a conductive coil (703) arranged on the side wall of a transmission rod (605); a guide block 1 (701) in contact with the conductive coil (703) is connected to the side wall of the transmission rod (605); a guide block 2 (702) is fixedly installed inside the processing table (200); a guide piece in contact with the conductive coil (703) is arranged on the top of the guide block 2 (702); and the guide block 1 (701) and the guide block 2 (702) are electrically connected to the motor (201).

7. The burr grinding device for high-strength automotive structural parts according to claim 1, characterized in that: The liquid circuit assembly comprises an iris mechanism (705) arranged inside the liquid tube (203), the outer wall of the iris mechanism (705) is provided with a gear ring (700), and the outer wall of the transmission rod (605) is provided with a rack assembly (704) meshing with the gear ring (700).

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