Industrial design product shape trimming device

Abstract

The application discloses an industrial design product shape trimming device and belongs to the technical field of product polishing and trimming equipment. The industrial design product shape trimming device comprises a clamp and a lifting mechanism, and further comprises: a polishing mechanism comprising a frame, an upper grinding wheel and a lower grinding wheel, the upper grinding wheel and the lower grinding wheel being arranged on the upper side and the lower side of a thin shell part respectively and being rotationally connected with the frame, the lifting mechanism being used for driving the upper grinding wheel and the lower grinding wheel to move in the vertical direction; a pressure detection mechanism being used for detecting an upper side extrusion force applied by the upper grinding wheel to the thin shell part and a lower side extrusion force applied by the lower grinding wheel to the thin shell part; a controller controlling the action of the lifting mechanism according to the upper side extrusion force and the lower side extrusion force, so that the upper side extrusion force is equal to the lower side extrusion force in size; and a driving mechanism being used for driving the clamp to move in the horizontal direction. The industrial design product shape trimming device can prevent the thin shell part from being deformed due to stress during polishing and trimming, and can ensure the precision of the shape of the part after polishing and trimming.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of product polishing and finishing equipment, in particular to an industrial design product shape finishing device. BACKGROUND

[0002] In today's competitive market environment, the design and manufacture of industrial products are rapidly developing towards high precision, high quality and high personalization. As a key link between technology and user needs, industrial design plays a decisive role in the success of products. As an intuitive embodiment of industrial design, product shape not only concerns the aesthetic value of the product, but also closely relates to the functionality, user experience and market competitiveness of the product.

[0003] The industrial design product shape finishing device can polish and finish the shape of the industrial design product, and can improve the precision of the appearance of the industrial design product. The core components of the existing shape finishing device include a lifting mechanism and a polishing wheel. The part to be polished and corrected is placed below the polishing wheel, the polishing wheel is rotated, and the polishing wheel is controlled to rise and fall by the lifting mechanism, so that the shape of the part is polished by the polishing wheel.

[0004] However, when the above-mentioned shape finishing device is used to polish the thin shell part, since the wall thickness of the thin shell part is thin, the stiffness of the thin shell part is limited, and when the polishing wheel applies a large polishing force to the thin shell part, the thin shell part will be deformed under stress, thereby affecting the precision of the shape of the thin shell part after polishing and finishing. SUMMARY

[0005] The purpose of the present application is to overcome the problems in the prior art, and provide an industrial design product shape finishing device which can prevent the thin shell part from deforming under stress during polishing and finishing, thereby ensuring the precision of the shape of the part after polishing and finishing.

[0006] The present application provides an industrial design product shape finishing device, comprising a clamp and a lifting mechanism, the clamp being used to clamp a thin shell part to be finished, so that the thin shell part is in a horizontal state, further comprising:

[0007] A polishing mechanism comprising a frame, an upper grinding wheel and a lower grinding wheel, the upper grinding wheel and the lower grinding wheel being arranged on the upper and lower sides of the thin shell part and being rotatably connected with the frame, the upper grinding wheel and the lower grinding wheel being arranged in parallel, the upper grinding wheel abutting against the upper end surface of the thin shell part, and the lower grinding wheel abutting against the lower end surface of the thin shell part, the frame being connected with the lifting mechanism, and the lifting mechanism being used to drive the upper grinding wheel and the lower grinding wheel to move in the vertical direction through the frame;

[0008] A pressure detection mechanism for detecting the upper side extrusion force applied by the upper grinding wheel to the upper end surface of the thin shell part and the lower side extrusion force applied by the lower grinding wheel to the lower end surface of the thin shell part;

[0009] A controller is electrically connected with the lifting mechanism and the pressure detecting mechanism, and controls the lifting mechanism to move the upper grinding wheel and the lower grinding wheel in the vertical direction according to the upper side pressing force and the lower side pressing force, so as to make the upper side pressing force equal to the lower side pressing force.

[0010] A driving mechanism is connected with the clamp, and is used to drive the clamp to move in the horizontal direction.

[0011] Preferably, the pressure detecting mechanism comprises an upper force detecting part and a lower force detecting part, which are identical in structure and each comprises a slide rod, a spring and a pressure sensor. A first slide hole is arranged on the frame, the slide rod is slidably connected in the first slide hole, a fork is connected to one end of the slide rod, the upper grinding wheel or the lower grinding wheel is rotatably connected to the fork, the spring is arranged outside the slide rod, the pressure sensor is arranged on the frame, one end of the spring abuts against the fork, and the other end of the spring abuts against the pressure sensor, and the pressure sensor is used to detect the elastic force applied to the spring.

[0012] Preferably, a rotating part is connected to the frame, and is used to drive the frame to rotate about the midline of the upper grinding wheel and the lower grinding wheel, the distance from the midline to the axis of the upper grinding wheel is equal to the distance from the midline to the axis of the lower grinding wheel, the axis of the first slide hole is perpendicular to the axis of the upper grinding wheel, and the axis of the first slide hole is parallel to the plane formed by the axis of the upper grinding wheel and the axis of the lower grinding wheel.

[0013] Preferably, a left distance detecting part and a right distance detecting part are arranged on the frame, and are symmetrically arranged on the left and right sides of the upper grinding wheel. The line connecting the left distance detecting part and the right distance detecting part is perpendicular to the axis of the first slide hole and the axis of the upper grinding wheel. The left distance detecting part is used to detect the left distance one between the left distance detecting part and the upper end surface of the thin-shell part, and the right distance detecting part is used to detect the right distance two between the right distance detecting part and the upper end surface of the thin-shell part. The left distance detecting part, the right distance detecting part and the rotating part are electrically connected with the controller, and the controller controls the rotating part to rotate according to the left distance one and the right distance two, so as to make the left distance one equal to the right distance two.

[0014] Preferably, the lifting mechanism comprises a slide block, a lead screw and a guide rod. The slide block is connected with the frame through the rotating part. The guide rod and the lead screw are arranged along the axis of the first slide hole. The slide block is provided with a second slide hole and a threaded hole. The slide block is slidably connected with the guide rod through the second slide hole, and is threadedly connected with the lead screw through the threaded hole. The lead screw is connected with a first power device, and the first power device is electrically connected with the controller.

[0015] Preferably, the rotating part comprises a rotating shaft and a second power device. The rotating shaft is coaxially arranged with the midline, and is rotatably connected with the slide block. One end of the frame is connected with the rotating shaft, and the other end of the rotating shaft is connected with the second power device.

[0016] Preferably, the clamp is divided into a left clamping part and a right clamping part, the left clamping part is arranged at the left side of the upper grinding wheel and the lower grinding wheel, the right clamping part is arranged at the right side of the upper grinding wheel and the lower grinding wheel, the left clamping part clamps the left end of the thin shell part, and the right clamping part clamps the right end of the thin shell part.

[0017] Preferably, the spring has multiple specifications, and the elastic coefficients of the springs of each specification are different but the lengths are the same.

[0018] Preferably, the driving mechanism is an electric sliding table.

[0019] Preferably, the upper grinding wheel and the lower grinding wheel are detachably connected with the frame.

[0020] Compared with the prior art, the industrial design product contour trimming device has the beneficial effects that: the upper grinding wheel and the lower grinding wheel are used to polish and trim the upper and lower end faces of the thin shell part respectively, the upper side extrusion force applied to the thin shell part by the upper grinding wheel during polishing and trimming is downward, the lower side extrusion force applied to the thin shell part by the lower grinding wheel during polishing and trimming is upward, the extrusion force directions applied to the thin shell part by the upper grinding wheel and the lower grinding wheel are opposite, the pressure detection mechanism detects the upper side extrusion force applied to the upper end face of the thin shell part by the upper grinding wheel and the lower side extrusion force applied to the lower end face of the thin shell part by the lower grinding wheel in real time, and the controller controls the lifting mechanism to act according to the upper side extrusion force and the lower side extrusion force, so as to drive the upper grinding wheel and the lower grinding wheel to move in the vertical direction, so that the upper side extrusion force and the lower side extrusion force are equal in size, the extrusion forces applied to the thin shell part by the upper grinding wheel and the lower grinding wheel are offset, and the thin shell part is prevented from deforming due to stress during polishing and trimming, so as to ensure the precision of the contour of the part after polishing and trimming.

[0021] The sizes of the elastic forces borne by the pressure sensors of the upper force measuring part and the lower force measuring part can indicate the sizes of the upper side extrusion force and the lower side extrusion force, and when the thin shell part has fluctuations, the sizes of the elastic forces borne by the pressure sensors of the upper force measuring part and the lower force measuring part will fluctuate in time, so that the response speed of the lifting mechanism is higher, and the extrusion forces applied to the thin shell part by the upper grinding wheel and the lower grinding wheel can be further offset, and the thin shell part is more effectively prevented from deforming during polishing and trimming. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the first working state of the present application.

[0023] Figure 2 It is a structural schematic view of the A-A plane of the present application.

[0024] Figure 3 It is a structural schematic view of the second working state of the present application.

[0025] Figure 4 This is a schematic diagram of the force measuring part of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Thin-shell part, 101. Fixture, 102. Frame, 103. Upper grinding wheel, 104. Lower grinding wheel, 105. Lifting mechanism, 106. Drive mechanism, 201. Upper force measuring part, 202. Lower force measuring part, 203. Slide rod, 204. Spring, 205. Pressure sensor, 206. Fork, 3. Rotating part, 401. Left distance measuring part, 402. Right distance measuring part, 501. Slider, 502. Lead screw, 503. Guide rod, 504. First power device, 601. Rotating shaft, 602. Second power device, 701. Left clamping part, 702. Right clamping part. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1-4 The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] like Figures 1-4 As shown, the present invention provides an industrial design product shape trimming device, including a clamp 101 and a lifting mechanism 105. The clamp 101 is used to clamp the thin-shell part 1 to be polished so that the thin-shell part 1 is in a horizontal state. It also includes a polishing mechanism, a lifting mechanism 105, a pressure detection mechanism, a controller, and a drive mechanism 106. The polishing mechanism includes a frame 102, an upper polishing wheel 103, and a lower polishing wheel 104. The upper polishing wheel 103 and the lower polishing wheel 104 are respectively disposed on the upper and lower sides of the thin-shell part 1 and are rotatably connected to the frame 102. The upper polishing wheel 103 and the lower polishing wheel 104 are arranged parallel to each other. The upper polishing wheel 103 abuts against the upper end face of the thin-shell part 1, and the lower polishing wheel 104 abuts against the lower end face of the thin-shell part 1. The frame 102 and the lifting mechanism 105 are connected. 5. The lifting mechanism 105 is used to drive the upper grinding wheel 103 and the lower grinding wheel 104 to move vertically through the frame 102; the pressure detection mechanism is used to detect the upper extrusion force applied by the upper grinding wheel 103 to the upper end face of the thin-shell part 1 and the lower extrusion force applied by the lower grinding wheel 104 to the lower end face of the thin-shell part 1; the controller is electrically connected to both the lifting mechanism 105 and the pressure detection mechanism, and the controller controls the lifting mechanism 105 to move according to the upper extrusion force and the lower extrusion force, thereby driving the upper grinding wheel 103 and the lower grinding wheel 104 to move vertically so that the upper extrusion force and the lower extrusion force are equal in magnitude; the driving mechanism 106 is connected to the clamp 101, and the driving mechanism 106 is used to drive the clamp 101 to move horizontally.

[0030] The working principle of the above-mentioned embodiments is briefly described as follows:

[0031] The upper grinding wheel 103 and the lower grinding wheel 104 of the device are connected with a third power device. In use, the thin shell part 1 processed by forging and pressing is clamped on the clamp 101, then the upper grinding wheel 103 is pressed against the upper end surface of the thin shell part 1, and the lower grinding wheel 104 is pressed against the lower end surface of the thin shell part 1. Then the two third power devices are controlled to drive the upper grinding wheel 103 and the lower grinding wheel 104 to rotate. The upper grinding wheel 103 polishes and trims the upper end surface of the thin shell part 1, and the lower grinding wheel 104 polishes and trims the lower end surface of the thin shell part 1. At the same time, the driving mechanism 106 drives the clamp 101 to move in the horizontal direction, thereby driving the thin shell part 1 to move relative to the upper grinding wheel 103 and the lower grinding wheel 104, so as to polish and trim the entire upper end surface and lower end surface of the thin shell part 1. In this process, since the upper grinding wheel 103 and the lower grinding wheel 104 are arranged on the upper and lower sides of the thin shell part 1, and the upper grinding wheel 103 abuts against the upper end surface of the thin shell part 1, and the lower grinding wheel 104 abuts against the lower end surface of the thin shell part 1, therefore, when the upper grinding wheel 103 polishes and trims the thin shell part 1, the upper side extrusion force applied to the thin shell part 1 by the upper grinding wheel 103 is downward, and when the lower grinding wheel 104 polishes and trims the thin shell part 1, the lower side extrusion force applied to the thin shell part 1 by the lower grinding wheel 104 is upward. The extrusion forces applied to the thin shell part 1 by the upper grinding wheel 103 and the lower grinding wheel 104 are in opposite directions, and the pressure detection mechanism detects the upper side extrusion force applied to the upper end surface of the thin shell part 1 by the upper grinding wheel 103 and the lower side extrusion force applied to the lower end surface of the thin shell part 1 by the lower grinding wheel 104 in real time. The controller controls the lifting mechanism 105 to act according to the upper side extrusion force and the lower side extrusion force, thereby driving the upper grinding wheel 103 and the lower grinding wheel 104 to move in the vertical direction, so as to make the upper side extrusion force equal to the lower side extrusion force, thereby making the extrusion forces applied to the thin shell part 1 by the upper grinding wheel 103 and the lower grinding wheel 104 cancel each other out, so as to prevent the thin shell part 1 from deforming due to stress during polishing and trimming, thereby ensuring the accuracy of the shape of the part after polishing and trimming.

[0032] The industrial design product shape trimming device of the present application can prevent the thin shell part 1 from deforming due to stress during polishing and trimming, thereby ensuring the accuracy of the shape of the part after polishing and trimming.

[0033] On the basis of the above-mentioned embodiments, in order to further ensure that the extrusion forces applied to the thin shell part 1 by the upper grinding wheel 103 and the lower grinding wheel 104 can cancel each other out, and more effectively prevent the thin shell part 1 from deforming during polishing and trimming.

[0034] As Figures 1-4As shown, the pressure detection mechanism comprises the upper force measuring part 201 and the lower force measuring part 202, which are structurally identical and each comprises a slide rod 203, a spring 204 and a pressure sensor 205. The frame 102 is provided with a first slide hole, and the slide rod 203 is slidably connected in the first slide hole. One end of the slide rod 203 is connected with a fork 206, and the upper grinding wheel 103 or the lower grinding wheel 104 is rotatably connected to the fork 206. The spring 204 is arranged outside the slide rod 203, and the pressure sensor 205 is arranged on the frame 102. One end of the spring 204 abuts against the fork 206, and the other end of the spring 204 abuts against the pressure sensor 205. The pressure sensor 205 is used to detect the elastic force applied to it by the spring 204.

[0035] When the shape of the thin-shell part 1 fluctuates, the upper grinding wheel 103 or the lower grinding wheel 104 will fluctuate with the shape of the thin-shell part 1. When the shape of the part protrudes upward, the upper grinding wheel 103 and the lower grinding wheel 104 move upward, the upper grinding wheel 103 drives the slide rod 203 connected thereto to move upward, the slide rod 203 of the upper force measuring part 201 drives the fork 206 connected thereto to move upward, thereby pressing the spring 204 of the upper force measuring part 201, and the elastic force applied to the pressure sensor 205 of the upper force measuring part 201 increases. Conversely, the elastic force applied to the pressure sensor 205 of the lower force measuring part 202 decreases. The elastic force detected by the pressure sensor 205 of the upper force measuring part 201 plus the weight of the upper grinding wheel 103 and the slide rod 203 and the fork 206 of the upper force measuring part 201 is the size of the upward pressing force applied to the thin-shell part 1, and the elastic force detected by the pressure sensor 205 of the lower force measuring part 202 minus the weight of the lower grinding wheel 104 and the slide rod 203 and the fork 206 of the lower force measuring part 202 is the size of the downward pressing force applied to the thin-shell part 1. Therefore, the sizes of the upward pressing force and the downward pressing force can be obtained by the elastic forces applied to the pressure sensors 205 of the upper force measuring part 201 and the lower force measuring part 202, respectively. When the thin-shell part 1 fluctuates, the elastic forces detected by the pressure sensors 205 of the upper force measuring part 201 and the lower force measuring part 202 fluctuate in time, so that the response speed of the lifting mechanism 105 is higher, thereby further ensuring that the pressing forces applied to the thin-shell part 1 by the upper grinding wheel 103 and the lower grinding wheel 104 can be offset, and the deformation of the thin-shell part 1 during grinding and finishing can be more effectively prevented.

[0036] As a preferred solution, as Figure 2As shown in the figure, the frame 102 is connected with a rotating part 3, which is used to drive the frame 102 to rotate around the midline of the upper grinding wheel 103 and the lower grinding wheel 104, the distance from the midline to the axis of the upper grinding wheel 103 is equal to the distance from the midline to the axis of the lower grinding wheel 104, the axis of the first sliding hole is perpendicular to the axis of the upper grinding wheel 103, and the axis of the first sliding hole is parallel to the plane formed by the axis of the upper grinding wheel 103 and the axis of the lower grinding wheel 104. When the thin shell part 1 has a circular arc-shaped transition structure, the rotating part 3 can be controlled to drive the frame 102 to rotate. Since the axis of the first sliding hole is perpendicular to the axis of the upper grinding wheel 103, and the axis of the first sliding hole is parallel to the plane formed by the axis of the upper grinding wheel 103 and the axis of the lower grinding wheel 104, the sliding rod 203 can be driven to rotate around the midline of the upper grinding wheel 103 and the lower grinding wheel 104 until the axis of the sliding rod 203 is perpendicular to the arc surface of the thin shell part 1, so that the support force applied by the thin shell part 1 to the upper grinding wheel 103 or the lower grinding wheel 104 is in the same direction as the axial direction of the sliding rod 203, preventing the sliding rod 203 from being stuck in the first sliding hole, ensuring the normal operation of the upper force measuring part 201 and the lower force measuring part 202, ensuring the accuracy of the pressure detection mechanism, and ensuring that the extrusion forces applied by the upper grinding wheel 103 and the lower grinding wheel 104 to the thin shell part 1 can be offset.

[0037] As a preferred solution, as shown in the figure, Figures 1-3 As shown in the figure, the frame 102 is provided with a left distance measuring part 401 and a right distance measuring part 402, the left distance measuring part 401 and the right distance measuring part 402 are symmetrically arranged on the left and right sides of the upper grinding wheel 103, and the line connecting the left distance measuring part 401 and the right distance measuring part 402 is perpendicular to the axis of the first sliding hole and the axis of the upper grinding wheel 103, the left distance measuring part 401 is used to detect the distance one between the left distance measuring part 401 and the upper end surface of the thin shell part 1, and the right distance measuring part 402 is used to detect the right distance two between the right distance measuring part 402 and the upper end surface of the thin shell part 1, the left distance measuring part 401, the right distance measuring part 402 and the rotating part 3 are electrically connected with the controller, the controller controls the rotating part 3 to act according to the distance one and the right distance two, so as to drive the frame 102 to rotate to make the distance one equal to the right distance two. By arranging the left distance measuring part 401 and the right distance measuring part 402, when the upper grinding wheel 103 and the lower grinding wheel 104 move to the arc surface structure of the thin shell part 1, the distance one detected by the left distance measuring part 401 and the right distance two detected by the right distance measuring part 402 will be different, when the distance one is greater than the right distance two, the controller controls the rotating part 3 to drive the frame 102 to deflect to the left distance measuring part 401 side, otherwise, the controller controls the rotating part 3 to drive the frame 102 to deflect to the right distance measuring part 402 side, so as to ensure that the distance one is always equal to the right distance two, so that the support force applied by the thin shell part 1 to the upper grinding wheel 103 or the lower grinding wheel 104 is always in the same direction as the axial direction of the sliding rod 203, preventing the sliding rod 203 from being stuck in the first sliding hole.

[0038] As a preferred solution, as shown in Figures 1-4 , wherein the lifting mechanism 105 comprises a sliding block 501, a lead screw 502 and a guide rod 503, the sliding block 501 is connected with the frame 102 through the rotating part 3, the guide rod 503 and the lead screw 502 are both arranged along the axial direction of the first sliding hole, the sliding block 501 is provided with a second sliding hole and a threaded hole, the sliding block 501 is slidably connected with the guide rod 503 through the second sliding hole, the sliding block 501 is threadedly connected with the lead screw 502 through the threaded hole, the lead screw 502 is connected with a first power device 504, and the first power device 504 is electrically connected with the controller. When driving the frame 102 to rotate, the first power device 504 drives the lead screw 502 to rotate, thereby driving the sliding block 501 to slide on the guide rod 503, so as to drive the rotating part 3 and the frame 102 to perform lifting movement. Under the driving of the first power device 504, the position of the frame 102 can be accurately controlled, thereby further ensuring that the upper extrusion force and the lower extrusion force are equal in size.

[0039] As a preferred solution, as shown in Figure 2 , wherein the rotating part 3 comprises a rotating shaft 601 and a second power device 602, the rotating shaft 601 is coaxially arranged with the median line, the rotating shaft 601 is rotatably connected with the sliding block 501, one end of the frame 102 is connected with the rotating shaft 601, and the other end of the rotating shaft 601 is connected with the second power device 602. The second power device 602 drives the rotating shaft 601 to rotate around the median line, thereby driving the frame 102 to rotate, so as to realize accurate control of the posture of the frame 102.

[0040] As a preferred solution, as shown in Figure 1 and Figure 3 , wherein the clamp 101 is divided into a left clamping part 701 and a right clamping part 702, the left clamping part 701 is arranged on the left side of the upper grinding wheel 103 and the lower grinding wheel 104, the right clamping part 702 is arranged on the right side of the upper grinding wheel 103 and the lower grinding wheel 104, the left clamping part 701 clamps the left end of the thin shell part 1, and the right clamping part 702 clamps the right end of the thin shell part 1. By clamping the two ends of the thin shell part 1 through the left clamping part 701 and the right clamping part 702 respectively, and driving the left clamping part 701 and the right clamping part 702 to move in the horizontal plane by the driving mechanism 106, the stability of the thin shell part 1 during movement can be ensured, thereby further preventing the thin shell part 1 from deforming during polishing and finishing.

[0041] As a preferred solution, as shown in Figures 1-4As shown in the figure, the spring 204 has multiple specifications, and the elastic coefficient of each specification of the spring 204 is different but the length is the same. By setting the spring 204 with different specifications, since the elastic coefficient of the spring 204 with different specifications is different, the size of the upper side pressing force applied by the upper grinding wheel 103 to the thin shell part 1 and the size of the lower side pressing force applied by the lower grinding wheel 104 to the thin shell part 1 can be changed when the spring 204 with different specifications is used, so as to change the strength of the thin shell part 1 in polishing and finishing.

[0042] As a preferred solution, as shown in the figure, the driving mechanism 106 is an electric sliding table. The electric sliding table is used to drive the left clamping part 701 and the right clamping part 702 to move, so as to further ensure the stability of the movement and the accuracy of the position of the thin shell part 1. Figures 1-3

[0043] As a preferred solution, as shown in the figure, the upper grinding wheel 103 and the lower grinding wheel 104 are detachably connected with the frame 102. The upper grinding wheel 103 and the lower grinding wheel 104 are set to be detachably connected with the frame 102, so as to facilitate the disassembly of the upper grinding wheel 103 and the lower grinding wheel 104, thereby facilitating the maintenance of the whole device. Figures 1-4

[0044] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application.​​

Claims

1. An industrial design product shape finishing apparatus comprising a jig (101) for clamping a thin shell part (1) to be finished in a horizontal state and a lifting mechanism (105), characterized in that, Also comprising: a polishing mechanism, comprising a frame (102), an upper grinding wheel (103) and a lower grinding wheel (104), the upper grinding wheel (103) and the lower grinding wheel (104) are respectively arranged on the upper and lower sides of the thin shell part (1) and are rotationally connected with the frame (102), the upper grinding wheel (103) is arranged in parallel with the lower grinding wheel (104), the upper grinding wheel (103) abuts against the upper end surface of the thin shell part (1), the lower grinding wheel (104) abuts against the lower end surface of the thin shell part (1), the frame (102) is connected with a lifting mechanism (105), the lifting mechanism (105) is used to drive the upper grinding wheel (103) and the lower grinding wheel (104) to move in the vertical direction through the frame (102); a pressure detection mechanism, used to detect the upper side extrusion force applied by the upper grinding wheel (103) to the upper end surface of the thin shell part (1) and the lower side extrusion force applied by the lower grinding wheel (104) to the lower end surface of the thin shell part (1); a controller, electrically connected with the lifting mechanism (105) and the pressure detection mechanism, the controller controls the action of the lifting mechanism (105) according to the upper side extrusion force and the lower side extrusion force, so as to drive the upper grinding wheel (103) and the lower grinding wheel (104) to move in the vertical direction, so that the upper side extrusion force and the lower side extrusion force are equal in size; a driving mechanism (106), connected with the clamp (101), the driving mechanism (106) is used to drive the clamp (101) to move in the horizontal direction; the pressure detection mechanism comprises an upper force measuring part (201) and a lower force measuring part (202), the upper force measuring part (201) and the lower force measuring part (202) are the same in structure and each comprises a sliding rod (203), a spring (204) and a pressure sensor (205), the frame (102) is provided with a first sliding hole, the sliding rod (203) is slidingly connected in the first sliding hole, one end of the sliding rod (203) is connected with a fork (206), the upper grinding wheel (103) or the lower grinding wheel (104) is rotationally connected on the fork (206), the spring (204) is arranged outside the sliding rod (203), the pressure sensor (205) is arranged on the frame (102), one end of the spring (204) abuts against the fork (206), the other end of the spring (204) abuts against the pressure sensor (205), and the pressure sensor (205) is used to detect the elastic force applied by the spring (204) thereto; the frame (102) is connected with a rotating part (3), the rotating part (3) is used to drive the frame (102) to rotate around the midline of the upper grinding wheel (103) and the lower grinding wheel (104), the distance from the midline to the axis of the upper grinding wheel (103) is equal to the distance from the midline to the axis of the lower grinding wheel (104), the axis of the first sliding hole is perpendicular to the axis of the upper grinding wheel (103), and the axis of the first sliding hole is parallel to the plane formed by the axis of the upper grinding wheel (103) and the axis of the lower grinding wheel (104).

2. The industrial design product shape modifying apparatus of claim 1, wherein The frame (102) is provided with a left distance measuring part (401) and a right distance measuring part (402), the left distance measuring part (401) and the right distance measuring part (402) are symmetrically arranged on the left and right sides of the upper grinding wheel (103), the connecting line between the left distance measuring part (401) and the right distance measuring part (402) is perpendicular to the axis of the first sliding hole and the axis of the upper grinding wheel (103), the left distance measuring part (401) is used for detecting the distance one between the left distance measuring part (401) and the upper end surface of the thin shell part (1), the right distance measuring part (402) is used for detecting the right distance two between the right distance measuring part (402) and the upper end surface of the thin shell part (1), the left distance measuring part (401), the right distance measuring part (402) and the rotating part (3) are electrically connected with the controller, the controller controls the rotating part (3) to act according to the distance one and the distance two, so as to drive the frame (102) to rotate, so that the distance one and the distance two are equal.

3. The industrial design product shape modifying apparatus of claim 1, wherein The lifting mechanism (105) comprises a sliding block (501), a lead screw (502) and a guide rod (503), the sliding block (501) is connected with the frame (102) through the rotating part (3), the guide rod (503) and the lead screw (502) are arranged along the axis of the first sliding hole, the sliding block (501) is provided with a second sliding hole and a threaded hole, the sliding block (501) is slidably connected with the guide rod (503) through the second sliding hole, the sliding block (501) is threadedly connected with the lead screw (502) through the threaded hole, the lead screw (502) is connected with a first power device (504), and the first power device (504) is electrically connected with the controller.

4. The industrial design product shape modifying apparatus of claim 3, wherein The rotating part (3) comprises a rotating shaft (601) and a second power device (602), the rotating shaft (601) is coaxially arranged with the median line, the rotating shaft (601) is rotatably connected with the sliding block (501), one end of the frame (102) is connected with the rotating shaft (601), and the other end of the rotating shaft (601) is connected with the second power device (602).

5. The industrial design product form trimming apparatus of claim 1, wherein The clamp (101) is divided into a left clamping part (701) and a right clamping part (702), the left clamping part (701) is arranged on the left side of the upper grinding wheel (103) and the lower grinding wheel (104), the right clamping part (702) is arranged on the right side of the upper grinding wheel (103) and the lower grinding wheel (104), the left clamping part (701) clamps the left end of the thin shell part (1), and the right clamping part (702) clamps the right end of the thin shell part (1).

6. The industrial design product shape modifying apparatus of claim 2, wherein The spring (204) has multiple specifications, and the elastic coefficients of the springs (204) of different specifications are different but the lengths are the same.

7. The industrial design product form trimming apparatus of claim 1, wherein The driving mechanism (106) is an electric sliding table.

8. The industrial design product form trimming apparatus of claim 1, wherein The upper grinding wheel (103) and the lower grinding wheel (104) are detachably connected with the frame (102).

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