A forging workpiece surface grinding and polishing equipment
By designing a surface polishing and polishing device forged workpieces including a equipment rack, a grinding belt, a first drive assembly and a stretching mechanism, the problem of partial slack of the grinding belt in the traditional grinding device is solved, and a more uniform grinding effect and higher workpiece quality are achieved.
Patent Information
- Application Number
- CN202411109531.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2044-08-13
AI Technical Summary
When traditional grinding devices grind plate-shaped forged workpieces, the grinding belt is prone to partial slack, which affects the grinding effect and reduces the quality of the workpiece.
A forged workpiece surface polishing device is designed, adopting a structure including a device rack, a polishing belt, a first drive assembly and a stretching mechanism. The first drive assembly drives the grinding belt to rotate, and the second drive assembly drives the connecting plate to rotate, so that the support plate is close to, and the width of the extrusion roller is adjusted to squeeze the grinding belt to ensure that the grinding belt is tight.
It effectively avoids the partial relaxation of the grinding belt on the plate-shaped forged workpiece, ensures the uniformity of the grinding effect, improves the overall quality of the workpiece, and enhances the function of the grinding device for multi-type molding processing.
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Figure CN118744387B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of forging workpiece grinding, in particular to a forging workpiece surface grinding and polishing device. Background Art
[0002] Forging is a process that applies pressure or impact to metal materials to cause plastic deformation, thereby obtaining the desired geometric shape, size, quality and mechanical properties. There are various types of forged workpieces. Common plate-shaped forged workpieces in mechanical parts include support plates, connecting plates, metal shells, etc. Various plate-shaped forged workpieces are ground using grinding devices during processing; grinding can remove defects and uneven parts on the surface of forged workpieces, making the surface of forged workpieces smoother, thereby enhancing the aesthetics and overall texture of forged workpieces. This treatment method is very effective in improving the visual effect and comfort of forged workpieces.
[0003] When grinding a plate-shaped forged workpiece, an existing grinding device usually places the plate-shaped forged workpiece between two rotating grinding belts for grinding. The rotating grinding belts are used to rub the surface of the plate-shaped forged workpiece to achieve a grinding effect. However, since the material of the grinding belt itself is elastic, the grinding effect is best at a position close to the conveying roller when the plate-shaped forged workpiece passes through the grinding belt, and the grinding belts at other positions become partially loose, affecting the grinding effect and thus affecting the overall quality of the plate-shaped forged workpiece. Summary of the invention
[0004] The purpose of the present invention is to propose a surface grinding and polishing device for forged workpieces in order to solve the problem that in the process of traditional grinding devices, when a plate-shaped forged workpiece passes through a grinding belt, the grinding effect is good at the position close to the conveying roller, while the grinding belt at other positions becomes partially loose, affecting the grinding effect and thus affecting the overall quality of the plate-shaped forged workpiece.
[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technology: a forged workpiece surface grinding and polishing equipment, including an equipment frame and a grinding belt installed on the equipment frame, and also including a first driving component mounted on the equipment frame to drive the grinding belt to rotate, a support plate and a stretching mechanism for stretching the grinding belt installed inside the support plate are rotatably installed at the center of the equipment frame; the stretching mechanism includes a second driving component installed at a low point of the equipment frame and a connecting plate installed at the output end of the second driving component and passing through the supporting plate, a group of support plates connected to the connecting plate in a transmission manner are slidably installed on the support plate, and an extrusion component for stretching the grinding belt is fixedly installed on the support plate.
[0006] As a further description of the forged workpiece surface grinding and polishing equipment of the above technology:
[0007] The extrusion assembly includes extrusion rollers capable of adjusting the width and mounted in pairs on both sides of the grinding belt; an adjustment assembly for controlling the synchronous rotation of the connection plate and the support plate is installed at the low point of the equipment frame. The first driving assembly includes two first sliders slidably mounted on the equipment frame, and a conveying roller is rotatably mounted on the first slider through a bearing, and a driving motor is fixedly mounted on the bottom of one of the first sliders, and the output shaft of the driving motor is fixedly connected to one of the conveying rollers.
[0008] As a further description of the forged workpiece surface grinding and polishing equipment of the above technology:
[0009] The grinding belt is sleeved on the outside of the two conveying rollers, and a tension spring is fixedly installed between the first slider and the equipment frame. The second driving component also includes a servo motor whose output shaft is fixedly connected to a connecting disk, and a centrally symmetrical slide rail is provided on the connecting disk, and a slide rod matching the slide rail is fixedly installed on the support plate.
[0010] The extrusion assembly also includes a support plate fixedly mounted on the support plate, a double-headed screw is rotatably mounted in the support plate, a group of second sliders are threadedly connected to the double-headed screw, and the second sliders are slidably connected to the support plate, and the extrusion roller is rotatably mounted on the second slider via a bearing.
[0011] As a further description of the forged workpiece surface grinding and polishing equipment of the above technology:
[0012] A rubber cleaning plate that is pressed against the support plate is fixedly mounted on the upper side of the connection plate. The adjustment assembly includes a plurality of slots formed on the outer side wall of the support plate, a slide slot is formed on the equipment frame on one side of the support plate, a transmission plate is slidably mounted inside the slide slot, and a plug rod matching the slot is fixedly mounted on the bottom of the transmission plate.
[0013] As a further description of the forged workpiece surface grinding and polishing equipment of the above technology:
[0014] A sleeve is fixedly installed at one end of the transmission plate away from the insertion rod, a spur gear is rotatably installed in the sleeve through a bearing, the spur gear is slidably installed on the outside of the connecting plate, and a tooth groove matching the spur gear is opened at the center of the support plate. An electric telescopic rod is fixedly installed on the equipment frame, and the power output shaft of the electric telescopic rod is fixedly connected to the transmission plate.
[0015] In summary, due to the use of the above-mentioned technology, the surface grinding and polishing equipment for forged workpieces has the following beneficial effects:
[0016] The grinding belt is driven to rotate by the first driving component, and the plate-shaped forged workpiece to be polished is installed inside the grinding belt perpendicular to the equipment frame. The second driving component is used to drive the connecting plate to rotate, so that the connecting plate can drive the two supporting plates to approach each other, and the width of the extrusion roller is adjusted, so that the extrusion roller in the extrusion assembly squeezes the grinding belt, and the grinding belt is tightly stretched on both ends of the plate-shaped forged workpiece to be polished, so that the rotating grinding belt will not be locally loose when passing through the plate-shaped forged workpiece, ensuring that the grinding belt has a good grinding effect on the two sides in contact with the plate-shaped forged workpiece. In addition, the adjusting component is used to control the synchronous rotation of the connecting plate and the supporting plate, so that the extrusion roller can rotate in the horizontal plane, and the diagonal extrusion rollers can squeeze the grinding belt separately, thereby realizing the grinding of the chamfers at both ends of the plate-shaped forged workpiece with arc chamfers, so that the grinding device has the function of multi-type forming processing of the plate-shaped forged workpiece, and improves the grinding quality of the grinding device for the plate-shaped forged workpiece. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A schematic diagram provided according to an embodiment of the present invention is shown;
[0018] Figure 2 A top view of a device rack structure provided according to an embodiment of the present invention is shown;
[0019] Figure 3 A schematic diagram of a partial cross-sectional structure of a grinding belt provided according to an embodiment of the present invention is shown;
[0020] Figure 4 A schematic diagram provided according to an embodiment of the present invention is shown;
[0021] Figure 5 A schematic diagram of the structure of a support plate provided according to an embodiment of the present invention is shown;
[0022] Figure 6 A schematic diagram of the support plate structure provided according to an embodiment of the present invention is shown;
[0023] Figure 7 The embodiment provided according to the present invention shows Figure 3 A magnified view of the structure at A;
[0024] Figure 8 A schematic diagram showing a state in which a squeezing roller rotates and compresses a grinding belt according to an embodiment of the present invention;
[0025] Fig. 9 A schematic diagram showing a state in which an extrusion roller translates and compresses a grinding belt according to an embodiment of the present invention is shown.
[0026] Legend:
[0027] 10. Equipment rack;
[0028] 20. Grinding belt;
[0029] 30. stretching mechanism; 31. extrusion assembly; 311. extrusion roller; 312. support plate; 313. double-headed screw; 32. connecting plate; 33. second driving assembly; 331. slide rail; 332. servo motor; 333. slide rod; 34. rubber cleaning plate; 35. support plate;
[0030] 40. First driving assembly; 41. First slider; 42. Tension spring; 43. Conveying roller; 44. Driving motor;
[0031] 50. Support plate;
[0032] 60. Adjustment assembly; 62. Transmission plate; 63. Slot; 64. Electric telescopic rod; 65. Insert rod; 66. Spur gear; 67. Slide groove; 68. Sleeve; 69. Tooth groove. DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technology in the embodiments of the present invention, a forged workpiece surface grinding and polishing device. 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 creative work are within the scope of protection of the present invention.
[0034] like Figure 1-Figure 9 As shown, a forged workpiece surface grinding and polishing device provided by the present invention includes an equipment frame 10 and a grinding belt 20 installed on the equipment frame 10, and also includes a first driving component 40 assembled on the equipment frame 10 to drive the grinding belt 20 to rotate, the first driving component 40 includes two first sliders 41 slidably installed on the equipment frame 10, the first slider 41 is T-shaped so that it will not be separated when sliding on the equipment frame 10; a conveying roller 43 is rotatably installed on the first slider 41 through a bearing, and the conveying roller 43 here refers to a component composed of a support rod and a cylindrical rod-shaped structure fixedly installed on the outside, the internal support rod is rotatably connected to the first slider 41 through a bearing, a driving motor 44 is fixedly installed at the bottom of one of the first sliders 41, and the output shaft of the driving motor 44 is fixedly connected to one of the conveying rollers 43, and in addition, the grinding belt 20 is sleeved on the outside of the two conveying rollers 43, when the driving motor 44 is working, the conveying roller 43 can be rotated, so that the grinding belt 20 is rotated, thereby realizing the grinding of the plate-shaped forged workpiece placed between the grinding belts 20.
[0035] In further detail, a tension spring 42 is fixedly installed between the first slider 41 and the equipment frame 10. The elastic force provided by the tension spring 42 can keep the two conveying rollers 43 away from each other, thereby ensuring that the grinding belt 20 can rotate stably.
[0036] like Figure 1-Figure 9 As shown, a support plate 50 and a stretching mechanism 30 for stretching the grinding belt 20 are rotatably mounted at the center of the equipment frame 10 and are assembled inside the support plate 50. The stretching mechanism 30 includes a second drive assembly 33 installed at a low point of the equipment frame 10 and a connecting plate 32 installed at the output end of the second drive assembly 33 and passing through the support plate 50. The second drive assembly 33 also includes a servo motor 332 whose output shaft is fixedly connected to the connecting plate 32. The servo motor 332 is a motor that can rotate at a constant speed in different directions in the prior art. When the servo motor 332 is working, it can drive the connecting plate 32 to rotate. The front view of the connecting plate 32 is a T-shaped structure, and a centrally symmetrical slide rail 33 is provided on the connecting plate 32. 1. A slide bar 333 matching the slide rail 331 is fixedly mounted on the support plate 35; when the connecting plate 32 rotates, the connecting plate 32 will rely on its own slide rail 331 to squeeze the slide bar 333, so that the slide bar 333 can slide inside the slide rail 331. A group of support plates 35 drivingly connected to the connecting plate 32 are slidably mounted on the support plate 50. Therefore, when the two slide bars 333 approach each other, the two slide bars 333 will drive the two support plates 35 to approach or move away from each other, so as to achieve the position adjustment of the two support plates 35.
[0037] In further detail, the support plate 35 is fixedly equipped with an extrusion assembly 31 for stretching the grinding belt 20; the extrusion assembly 31 includes extrusion rollers 311 that can be adjusted in width and are respectively installed in pairs on both sides of the grinding belt 20; the extrusion assembly 31 also includes a support plate 312 fixedly installed on the support plate 35, and a double-headed screw 313 is rotatably installed in the support plate 312; the double-headed screw 313 is a rod-shaped structure with two sections of threads in opposite directions on the outer wall in the prior art; a group of second sliders are threadedly connected to the double-headed screw 313, and the second sliders It is slidably connected to the support plate 312. Since the double-headed screw 313 is threadedly connected to the second slider, the second slider will rotate along with the double-headed screw 313. Since the second slider is slidably connected to the equipment frame 10, the double-headed screw 313 will generate an axial force on the second slider when it rotates, so that the two second sliders can move closer to or away from each other, and the two extrusion rollers 311 can move closer to or away from each other along the axis of the support plate 312, so that the extrusion rollers 311 can adapt to plate forging workpieces of different widths.
[0038] The squeezing roller 311 is rotatably mounted on the second slider via a bearing. The squeezing roller 311 is a support rod with a cylindrical structure fixedly mounted on the outside. The bearing is mounted at the connection between the support rod and the second slider, so that the squeezing roller 311 can rotate relative to the second slider. Therefore, when the squeezing roller 311 squeezes the grinding belt 20, the squeezing roller 311 can rotate with the grinding belt 20 and will not hinder the rotation of the grinding belt 20.
[0039] like Figure 1-Figure 5 and Figure 7-Figure 9 As shown, an adjustment assembly 60 for controlling the synchronous rotation of the connecting plate 32 and the supporting plate 50 is installed at the low point of the equipment rack 10. The adjustment assembly 60 includes a plurality of slots 63 provided on the outer wall of the supporting plate 50, and a slide slot 67 is provided on the equipment rack 10 on one side of the supporting plate 50. A transmission plate 62 is slidably installed inside the slide slot 67, and a plug rod 65 matching the slot 63 is fixedly installed at the bottom of the transmission plate 62; one end of the transmission plate 62 close to the slide slot 67 is T-shaped, so that it will not be separated when sliding inside the slide slot 67; when the plug rod 65 is inserted into the inside of the slot 63, the supporting plate 50 and the equipment rack 10 can be firmly fixed.
[0040] In further detail, a sleeve 68 is fixedly installed at one end of the transmission plate 62 away from the insertion rod 65, and a spur gear 66 is rotatably installed in the sleeve 68 through a bearing. The spur gear 66 is slidably installed on the outside of the connecting plate 32, wherein the rotation of the connecting plate 32 will drive the spur gear 66 to rotate synchronously. A tooth groove 69 adapted to the spur gear 66 is provided at the center of the support plate 50. An electric telescopic rod 64 is fixedly installed on the equipment frame 10, and the power output shaft of the electric telescopic rod 64 is fixedly connected to the transmission plate 62.
[0041] The electric telescopic rod 64 can control the transmission plate 62 to rise and fall. When the transmission plate 62 drives the insertion rod 65 to pass through the inner wall of the slide groove 67 and extend to the inside of the card slot 63, the support plate 50 will be firmly fixed between the equipment frame 10; the main view of the support plate 50 is in the shape of an "I" character, so that the support plate 50 will not be separated when it rotates between the equipment frames 10 under normal conditions; further, when the insertion rod 65 is inserted into the inside of the card slot 63, the transmission plate 62 will drive the sleeve 68 to descend, so that the sleeve 68 drives the spur gear 66 to disengage from the tooth groove 69, so that the support plate 50 will not rotate at the same time as the connecting plate 32; so that the connecting plate 32 can drive the support plate 35 to move closer or farther from each other during the process of rotating alone, so that the support plate 35 can drive the squeezing roller 311 to squeeze the grinding belt 20 and tighten the grinding belt 20 on both ends of the plate-like forged workpiece to be ground, so that the rotating grinding belt 20 will not be locally loose when passing through the plate-like forged workpiece, ensuring that the grinding belt 20 has a good grinding effect on the two sides in contact with the plate-like forged workpiece; and when the insertion rod 65 is disengaged from the slot 63, the spur gear 66 will be inserted into the tooth groove 69, so that the support plate 50 will rotate simultaneously with the connecting plate 32, so that the squeezing roller 311 can rotate in the horizontal plane, so that the diagonal squeezing roller 311 can squeeze the grinding belt 20 separately, thereby realizing the grinding of the chamfers at both ends of the plate-like forged workpiece with arc chamfers, so that the grinding device has the function of multi-type forming processing of the plate-like forged workpiece, and improves the grinding quality of the grinding device for the plate-like forged workpiece.
[0042] When the extrusion rollers 311 on the two support plates 312 are adjusted to different widths, that is, when the distance between the two extrusion rollers 311 on one of the support plates 312 is smaller than the distance between the two extrusion rollers 311 on the other support plate 312, the width range of the grinding belt 20 tightened inward on both sides is also different, so that plate-shaped forging workpieces with uneven widths on both sides can be ground, further improving the grinding quality.
[0043] like Figure 3 As shown, a rubber cleaning plate 34 is fixedly installed on the connecting plate 32 and is pressed against the supporting plate 50. The rubber cleaning plate 34 has a certain acceleration effect. When the connecting plate 32 rotates alone, the connecting plate 32 will drive the rubber cleaning plate 34 to rotate, so that the debris between the connecting plate 32 and the supporting plate 50 flows out from the inside of the tooth groove 69, avoiding manual cleaning.
[0044] Working principle: when it is necessary to grind a plate-shaped forged workpiece, firstly, manually place the plate-shaped forged workpiece into the circle between the grinding belts 20, or use an external manipulator to clamp the wooden forged workpiece into the circle of the grinding belt 20, and use the driving motor 44 to work, so that the conveying roller 43 can rotate; then rotate the double-headed screw 313, so that the double-headed screw 313 can drive the two second sliders inside the support plate 312 to move closer to or farther away from each other, so that the two squeezing rollers 311 move closer to or farther away from each other along the axis of the support plate 312, so that the squeezing roller 311 can adapt to plate-shaped forged workpieces of different widths; after adjusting the distance between the two squeezing rollers 311 on the support plate 312, start the electric telescopic rod 64, so that the electric telescopic rod 64 can control the transmission plate 62 to move up and down, and when the transmission plate 62 drives the insertion rod 65 to pass through the inner wall of the slide groove 67 and extend to the inside of the card groove 63, the support plate 50 will be firmly fixed to the equipment frame 10, so that the support plate 50 will not rotate with the connecting plate 32;
[0045] Furthermore, when the insertion rod 65 is inserted into the slot 63, the transmission plate 62 drives the sleeve 68 to descend, so that the sleeve 68 drives the spur gear 66 to disengage from the tooth groove 69, so that the support plate 50 will not rotate simultaneously with the connecting plate 32; so that the connecting plate 32 can drive the support plate 35 to move closer to or away from each other during the independent rotation, so that the support plate 35 can drive the squeezing roller 311 to squeeze the grinding belt 20; and the grinding belt 20 is tightly stretched on both ends of the plate-shaped forging workpiece to be polished, so that the rotating grinding belt 20 will not be partially loose when passing through the plate-shaped forging workpiece, ensuring that the grinding belt 20 has a good grinding effect on the two sides of the plate-shaped forging workpiece in contact;
[0046] When the insertion rod 65 is disengaged from the slot 63, the spur gear 66 will be inserted into the tooth groove 69, so that the support plate 50 will rotate simultaneously with the connecting plate 32, so that the extrusion roller 311 can rotate in the horizontal plane, and the diagonal extrusion roller 311 can extrude the grinding belt 20 separately, so as to realize the grinding of the chamfers at both ends of the plate-like forging workpiece with arc chamfers, so that the grinding device has the function of performing multiple types of forming processing on the plate-like forging workpiece, thereby improving the grinding quality of the grinding device on the plate-like forging workpiece.
[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes to the forged workpiece surface grinding and polishing equipment and its inventive concept according to the technology of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A forging workpiece surface grinding and polishing device, comprising a device frame (10) and a grinding belt (20) mounted on the device frame (10), characterized in that: It also includes a first driving assembly (40) mounted on the equipment frame (10) for driving the grinding belt (20) to rotate, a support plate (50) being rotatably mounted at the center of the equipment frame (10) and a stretching mechanism (30) mounted inside the support plate (50) for stretching the grinding belt (20); The stretching mechanism (30) comprises a second driving assembly (33) installed at a low point of the equipment frame (10) and a connecting plate (32) installed at the output end of the second driving assembly (33) and penetrating the supporting plate (50); a group of supporting plates (35) drivingly connected to the connecting plate (32) are slidably mounted on the supporting plate (50); and an extrusion assembly (31) for stretching the grinding belt (20) is fixedly mounted on the supporting plate (35); The second driving assembly (33) further comprises a servo motor (332) whose output shaft is fixedly connected to the connecting disk (32); a centrally symmetrical slide rail (331) is provided on the connecting disk (32); and a slide rod (333) matching the slide rail (331) is fixedly mounted on the support plate (35); The squeezing assembly (31) comprises squeezing rollers (311) capable of adjusting width and respectively installed in pairs on both sides of the grinding belt (20); An adjustment component (60) for controlling the synchronous rotation of the connecting plate (32) and the supporting plate (50) is installed at the low point of the equipment frame (10); The adjustment assembly (60) includes a plurality of slots (63) formed on the outer wall of the support plate (50), a slide slot (67) is formed on the equipment frame (10) located on one side of the support plate (50), a transmission plate (62) is slidably mounted inside the slide slot (67), and an insertion rod (65) matching the slot (63) is fixedly mounted on the bottom of the transmission plate (62); A sleeve (68) is fixedly mounted on one end of the transmission plate (62) away from the insertion rod (65), a spur gear (66) is rotatably mounted in the sleeve (68) via a bearing, the spur gear (66) is slidably mounted on the outside of the connecting plate (32), and a tooth groove (69) adapted to the spur gear (66) is provided at the center of the support plate (50); When the transmission plate (62) drives the insertion rod (65) to pass through the inner wall of the slide groove (67) and extend to the inside of the clamping groove (63), the sleeve (68) drives the spur gear (66) to disengage from the tooth groove (69), so that the connection plate (32) can drive the support plate (35) to move closer to or farther from each other during the process of rotating alone, ensuring that the grinding belt (20) has a good grinding effect on the two surfaces in contact with the plate-shaped forging workpiece; When the insertion rod (65) is disengaged from the slot (63), the spur gear (66) is inserted into the tooth groove (69), so that the support plate (50) and the connecting plate (32) rotate simultaneously, so that the squeezing roller (311) can rotate in the horizontal plane, so that the diagonal squeezing roller (311) can squeeze the grinding belt (20) separately, thereby achieving grinding of the chamfers at both ends of the plate-shaped forging workpiece with arc chamfers.
2. The forging workpiece surface grinding and polishing equipment according to claim 1 is characterized in that: The first driving assembly (40) comprises two first sliding blocks (41) slidably mounted on the equipment frame (10), a conveying roller (43) being rotatably mounted on the first sliding blocks (41) via a bearing, a driving motor (44) being fixedly mounted on the bottom of one of the first sliding blocks (41), and an output shaft of the driving motor (44) being fixedly connected to one of the conveying rollers (43).
3. The forging workpiece surface grinding and polishing equipment according to claim 2 is characterized in that: The grinding belt (20) is sleeved on the outside of two conveying rollers (43), and a tension spring (42) is fixedly installed between the first sliding block (41) and the equipment frame (10).
4. The forging workpiece surface grinding and polishing equipment according to claim 3 is characterized in that: The extrusion assembly (31) further comprises a support plate (312) fixedly mounted on the support plate (35), a double-headed screw (313) being rotatably mounted in the support plate (312), a group of second sliders being threadedly connected to the double-headed screw (313), and the second sliders being slidably connected to the support plate (312), and the extrusion roller (311) being rotatably mounted on the second sliders via bearings.
5. The forging workpiece surface grinding and polishing equipment according to claim 4, characterized in that: A rubber cleaning plate (34) is fixedly mounted on the connection plate (32) and is pressed against the support plate (50).
6. The forging workpiece surface grinding and polishing equipment according to claim 1, characterized in that: An electric telescopic rod (64) is fixedly mounted on the equipment frame (10), and a power output shaft of the electric telescopic rod (64) is fixedly connected to the transmission plate (62).
Citation Information
Patent Citations
Glass corner grinding method
CN110814962A
Forge piece flash grinding device
CN115609424A