Positioning and clamping equipment

Abstract

According to the positioning and clamping equipment, an electric sliding rail is arranged at the end, close to a first rotating roller, of a frame body, two electric sliding blocks are slidably connected to the outer wall of the electric sliding rail, the two oppositely-arranged electric sliding blocks are each fixedly connected with a bent frame with a limiting rod, and a conveying belt is located between the two bent frames; second bent frames movably connected with the second lead screw are oppositely arranged in the bearing base, the opposite sides of the two supporting frames are each fixedly connected with a second clamping plate mechanism, and a third bent frame movably connected with the lead screw is arranged between the two second bent frames located on the same side. A clamping plate mechanism is arranged on the opposite side of the top of the third bent frame. According to the positioning and clamping equipment, on the basis that the position of a workpiece is pre-adjusted, multiple times of clamping and fixing of a part can be achieved, the clamping stability of the part is greatly improved, the interference influence on a welding point is also reduced, and follow-up machining is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of clamps, and in particular to a positioning and clamping device. Background Art

[0002] Auto parts processing refers to the various units that constitute the overall auto parts processing and the products that serve the auto parts processing. With the increasingly fierce competition in the auto parts processing market, the deep-rooted concept of environmental protection, and the continuous upgrading and application of technology, there are many types of parts in the automobile structure with different shapes, and most of them require the use of positioning welding technology.

[0003] After searching, the Chinese patent publication number CN215091715U discloses an intelligent welding positioning fixture for automobile accessories, including a support frame, the bottom end of which is welded to a fixed plate; and a position adjustment fixture, the top end of which is fixedly connected to the position adjustment fixture, the position adjustment fixture includes a position adjustment base, a clamp, a light rod, a support plate, a connecting rod and a clamp control mechanism, the left ends of the front and rear sides of the top of the position adjustment base are provided with clamps, the left end of the clamp slides along the light rod, the front and rear ends of the light rod are respectively fixed with support plates, and the bottom end of the support plate is fixedly connected to the position adjustment base, the outer side of the clamp is connected to the clamp control mechanism through a connecting rod, and the clamp control mechanism is fixed to the bottom end of the position adjustment base, and the corners of the bottom end of the position adjustment base are fixedly connected to the support frame. The device enables the clamp to clamp the automobile parts, so that the automobile parts are centered on the top of the movable plate, and the position of the automobile parts is accurately fixed, thereby increasing the fixing effect of the automobile parts.

[0004] However, the above device does not clamp the parts firmly enough, and the clamping plate is too large to cause certain interference to the welding points, which is not conducive to subsequent processing operations. Summary of the invention

[0005] The purpose of the present invention is to provide a positioning and clamping device, which can realize multiple clamping and fixing of parts on the basis of pre-adjusting the position of the workpiece, greatly improving the stability of the clamping of the parts, reducing the interference effect on the welding point, and facilitating subsequent processing.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a positioning and clamping device, comprising: a conveyor belt, the conveyor belt is sleeved between a first rotating roller and a second rotating roller, and the first rotating roller and the second rotating roller are respectively rotatably mounted on a support frame, and a frame is located on the inner side of the conveyor belt and fixedly connected to the support frame; An electric slide rail is arranged at one end of the frame body close to the first rotating roller, and the electric slide rail is arranged perpendicular to the axial direction of the conveyor belt, and two electric sliders are slidably connected to the outer wall of the electric slide rail, and the two oppositely arranged electric sliders are fixedly connected to a bent frame with a limit rod, and the conveyor belt is located between the two bent frames, and a vertical frame is symmetrically arranged on the side of the first rotating roller opposite to the electric slide rail, and a second limit rod is respectively installed on the opposite sides of the two vertical frames, and the second limit rod is fixedly connected to the vertical frame through a support rod, and a guide belt is arranged between the limit rod and the second limit rod; A bearing base is symmetrically arranged on both sides of the middle part of the frame and about the axis of the conveyor belt, a second bent frame movably connected to the second screw rod is arranged inside the bearing base and opposite to it, and two second bent frames are arranged on the same side, a support frame located on the top of the second bent frame fixes the two second bent frames in connection, and a second clamping plate mechanism is fixedly connected to opposite sides of the two supports, the middle part of the support frame is hollowed out, the two second clamping plate mechanisms are arranged opposite to each other, a third bent frame movably connected to the screw rod is arranged between the two second bent frames on the same side, a clamping plate mechanism is arranged on the opposite side of the top of the third bent frame, and the clamping plate mechanism can penetrate the hollow area of ​​the support frame.

[0007] The further improved scheme in the above technical scheme is as follows: 1. In the above scheme, the clamping plate mechanism and the second clamping plate mechanism further include: a shell with a mounting groove, a plurality of clamping plates and a connecting ball fixedly connected to the clamping plates, a plurality of spherical sleeves movably connected to the connecting ball are arranged inside the mounting groove, and a spring is arranged on both sides of the spherical sleeve and between the clamping plate and the inner wall of the mounting groove.

[0008] 2. In the above scheme, a side bracket is provided on the side of the vertical frame opposite to the first rotating roller, and a push rod for pushing the workpiece is fixedly installed on the side bracket relative to one side of the conveyor belt.

[0009] 3. In the above solution, the movable end of the push rod is fixedly connected to a push block.

[0010] 4. In the above solution, a turntable is arranged between the two stands and below the push rod.

[0011] 5. In the above solution, the turntable is fixedly mounted on the output shaft of a motor base.

[0012] 6. In the above scheme, a polished rod and a second polished rod are arranged inside the bearing base and parallel to the screw rod, the second bent frame is movably connected to the second polished rod, and the third bent frame is movably connected to the polished rod.

[0013] 7. In the above solution, there are two polished rods, and the two polished rods are symmetrically arranged with respect to the lead screw.

[0014] 8. In the above solution, the third curved frame is threadably connected to the screw rod through a nut, and the nut is fixedly connected to the third curved frame.

[0015] 9. In the above solution, the second bent frame is threadedly connected to the second screw rod through a second nut, and the second nut is fixedly connected to the second bent frame.

[0016] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: The cam is an electrically conductive member which is adapted to move the two guide rails together so as to allow the conveyor belt to move in a controlled manner and to move the two guide rails in a controlled manner so as to prevent the two guide rails from moving in a controlled manner.

[0017] 2. The positioning and clamping device of the present invention has a second bent frame movably connected to the second screw rod and is relatively arranged inside the bearing base, and two second bent frames are arranged on the same side, a support frame located on the top of the second bent frame fixes the two second bent frames in connection, and a second clamping plate mechanism is fixedly connected to the opposite sides of the two supports, the middle part of the support frame is hollowed out, the two second clamping plate mechanisms are relatively arranged, a third bent frame movably connected to the screw rod is arranged between the two second bent frames located on the same side, and a clamping plate mechanism is arranged on the opposite sides of the top of the third bent frame, the clamping plate mechanism can penetrate the hollow area of ​​the support frame, and the clamping plate mechanism and the second clamping plate mechanism are adjusted according to the different volumes of added parts, the parts can be initially clamped and fixed by adjusting the second clamping plate mechanism, and then the parts can be clamped and fixed for the second time by adjusting the two clamping plate mechanisms located between the second bent frames to move toward each other, which greatly improves the stability of the clamping of the parts and reduces the interference effect on the welding points, is beneficial to the subsequent welding process, and also expands the overall application scope of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1It is a structural schematic diagram of the positioning and clamping device of the present invention; Attached Figure 2 The local structure diagram of the positioning and clamping device of the present invention is shown in FIG. Figure 1 ; Attached Figure 3 It is a partial structural exploded view of the positioning and clamping device of the present invention; Attached Figure 4 It is a schematic diagram of the exploded structure of the clamping plate mechanism in the positioning and clamping device of the present invention; Attached Figure 5 The local structure diagram of the positioning and clamping device of the present invention is shown in FIG. Figure 2 .

[0019] In the above figures: 101, side bracket; 102, push rod; 103, push block; 104, turntable; 105, motor seat; 106, control box; 107, electric slider; 108, electric slide rail; 109, bending frame; 110, limit rod; 111, guide belt; 112, support rod; 113, second limit rod; 2, stand; 3, scanning head; 4, conveyor belt; 501, support frame; 502, second bending frame; 503, third bending frame; 504, servo motor ; 505, second servo motor; 506, bearing base; 507, nut; 508, optical bar; 509, screw rod; 510, second screw rod; 511, second optical bar; 512, second nut; 6, clamping plate mechanism; 601, clamping plate; 602, connecting ball; 603, spring; 604, mounting groove; 605, spherical sleeve; 7, second clamping plate mechanism; 8, frame; 9, first rotating roller; 10, second rotating roller; 11, support frame; 12, shell. Implementation

[0020] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0021] Embodiment 1: A positioning and clamping device, comprising: a conveyor belt 4, the conveyor belt 4 is sleeved between a first rotating roller 9 and a second rotating roller 10, and the first rotating roller 9 and the second rotating roller 10 are respectively rotatably mounted on a support frame 11, and a frame 8 is located on the inner side of the conveyor belt 4 and fixedly connected to the support frame 11; An electric slide rail 108 is arranged at one end of the frame 8 close to the first rotating roller 9, and the electric slide rail 108 is arranged perpendicular to the axial direction of the conveyor belt 4, and two electric sliders 107 are slidably connected to the outer wall of the electric slide rail 108, and the two oppositely arranged electric sliders 107 are fixedly connected to a bent frame 109 with a limit rod 110, and the conveyor belt 4 is located between the two bent frames 109, and a stand 2 is symmetrically arranged on the side of the first rotating roller 9 opposite to the electric slide rail 108, and a second limit rod 113 is respectively installed on the opposite sides of the two stand 2, and the second limit rod 113 is fixedly connected to the stand 2 through a support rod 112, and a guide belt 111 is arranged between the limit rod 110 and the second limit rod 113; When clamping parts, the parts are placed on the turntable, and the scanning heads on both sides are used to scan the placed parts, and the turntable is controlled to adjust its direction so that the clamping direction remains consistent. After adjustment, the push rod pushes the parts onto the conveyor belt, thereby realizing rapid loading of parts and reducing the difficulty of operation. At the same time, the width of the scanned parts can be used to control the electric slide to move on the electric slide rail, so that the distance between the two limit rods is equal to the width distance. During the pushing process, a direction guide from wide to narrow is formed to ensure that the parts are in the same position when entering the conveyor belt, thereby facilitating subsequent positioning and clamping. A bearing base 506 is symmetrically arranged on both sides of the middle part of the frame 8 and about the axis of the conveyor belt 4, a second curved frame 502 movably connected to the second screw rod 510 is arranged inside and opposite to the bearing base 506, and two second curved frames 502 are arranged on the same side, a support frame 501 located on the top of the second curved frame 502 fixes the two second curved frames 502 together, and a second clamping plate mechanism 7 is fixedly connected to the opposite sides of the two supports 501, the middle part of the support frame 501 is hollowed out, the two second clamping plate mechanisms 7 are arranged opposite to each other, a third curved frame 503 movably connected to the screw rod 509 is arranged between the two second curved frames 502 on the same side, a clamping plate mechanism 6 is arranged on the opposite side of the top of the third curved frame 503, and the clamping plate mechanism 6 can penetrate the hollow area of ​​the support frame 501; During clamping and positioning, since two groups of clamping structures are set in the clamping mechanism, wherein the third bending frame is located between the second bending frames, and the clamping plate mechanism is higher than the second clamping plate mechanism, when clamping parts, firstly, scanning is performed by the scanning head to scan out the height and width of the parts, and in the subsequent conveying process, data processing is performed to determine whether to use the second clamping plate mechanism alone for clamping or to use the clamping plate mechanisms for clamping at the same time, so that the appropriate clamping area can be selected according to the different volumes of the workpieces, while ensuring the stability of the stress points, the surrounding range of the welding points is also expanded, which is beneficial to subsequent welding. At the same time, during the conveying process, the clamping distance of the second clamping plate mechanism or the clamping plate mechanism will be changed according to the measured clamping width, and changed to a distance slightly wider than the clamping width, thereby shortening the time required for inward clamping, improving processing efficiency, and also avoiding the unstable placement of parts caused by long clamping time; A side bracket 101 is provided on the side of the stand 2 opposite to the first rotating roller 9 , and a push rod 102 for pushing a workpiece is fixedly mounted on the side bracket 101 relative to one side of the conveyor belt 4 .

[0022] A push block 103 is fixedly connected to the movable end of the push rod 102 .

[0023] A rotating disk 104 is disposed between the two stands 2 and below the push rod 102 .

[0024] The rotating disk 104 is fixedly mounted on an output shaft of a motor base 105 .

[0025] A polished rod 508 and a second polished rod 511 are arranged inside the bearing base 506 and parallel to the screw rod 509 . The second curved frame 502 is movably connected to the second polished rod 511 , and the third curved frame 503 is movably connected to the polished rod 508 .

[0026] The third curved frame 503 is threadedly connected to the screw rod 509 via a nut 507 , and the nut 507 is fixedly connected to the third curved frame 503 .

[0027] The second curved frame 502 is threadedly connected to the second screw rod 510 via a second nut 512 , and the second nut 512 is fixedly connected to the second curved frame 502 .

[0028] One end of the second screw rod 510 is connected to the servo motor 504 , and one end of the screw rod 509 is connected to the second servo motor 505 .

[0029] A scanning head 3 is installed on each opposite side of the stand 2; a control box 106 is provided at each end of the electric slide rail 108.

[0030] Embodiment 2: A positioning and clamping device, comprising: a conveyor belt 4, the conveyor belt 4 is sleeved between a first rotating roller 9 and a second rotating roller 10, and the first rotating roller 9 and the second rotating roller 10 are respectively rotatably mounted on a support frame 11, and a frame 8 is located on the inner side of the conveyor belt 4 and fixedly connected to the support frame 11; An electric slide rail 108 is arranged at one end of the frame 8 close to the first rotating roller 9, and the electric slide rail 108 is arranged perpendicular to the axial direction of the conveyor belt 4, and two electric sliders 107 are slidably connected to the outer wall of the electric slide rail 108, and the two oppositely arranged electric sliders 107 are fixedly connected to a bent frame 109 with a limit rod 110, and the conveyor belt 4 is located between the two bent frames 109, and a stand 2 is symmetrically arranged on the side of the first rotating roller 9 opposite to the electric slide rail 108, and a second limit rod 113 is respectively installed on the opposite sides of the two stand 2, and the second limit rod 113 is fixedly connected to the stand 2 through a support rod 112, and a guide belt 111 is arranged between the limit rod 110 and the second limit rod 113; The distance between the two limit rods is adjusted by moving the electric slider along the electric slide rail, and a guide belt is provided between the limit rod and the second limit rod, so that the transmitted parts can be guided and the positions of the parts can be pre-adjusted, thereby improving the positioning accuracy of the parts and the clamping effect, and also helping to reduce the displacement of the clamping mechanism, thereby saving adjustment time and improving production efficiency.

[0031] A bearing base 506 is symmetrically arranged on both sides of the middle part of the frame 8 and about the axis of the conveyor belt 4, a second curved frame 502 movably connected to the second screw rod 510 is arranged inside and opposite to the bearing base 506, and two second curved frames 502 are arranged on the same side, a support frame 501 located on the top of the second curved frame 502 fixes the two second curved frames 502 together, and a second clamping plate mechanism 7 is fixedly connected to the opposite sides of the two supports 501, the middle part of the support frame 501 is hollowed out, the two second clamping plate mechanisms 7 are arranged opposite to each other, a third curved frame 503 movably connected to the screw rod 509 is arranged between the two second curved frames 502 on the same side, a clamping plate mechanism 6 is arranged on the opposite side of the top of the third curved frame 503, and the clamping plate mechanism 6 can penetrate the hollow area of ​​the support frame 501; The clamping mechanism and the second clamping mechanism are adjusted according to the different volumes of the added parts. The second clamping mechanism can also be adjusted to perform preliminary clamping and fixing of the parts. Then, the two clamping mechanisms located between the second bending frames are adjusted to move toward each other to perform secondary clamping and fixing of the parts. This greatly improves the stability of the clamping of the parts and reduces the interference effect on the welding points, which is beneficial to subsequent welding processing.

[0032] The clamping plate mechanism 6 and the second clamping plate mechanism 7 further include: a housing 12 with a mounting groove 604, a plurality of clamping plates 601 and a connecting ball 602 fixedly connected to the clamping plates 601, a plurality of spherical sleeves 605 movably connected to the connecting ball 602 are arranged inside the mounting groove 604, a spring 603 is arranged on both sides of the spherical sleeve 605 and between the clamping plate 601 and the inner wall of the mounting groove 604, under the action of the connecting ball and the spherical sleeve, and the fixing of the center positions of the plurality of clamping plates, the springs in the same direction can be compressed or bounced to adapt to the appearance of different workpieces, so that the plurality of clamping plates can adapt to the angles of different positions, ensuring the close fit between the clamping and the side wall of the workpiece, and improving the stability of the clamping; When the second clamping plate mechanism and the clamping plate mechanism are clamped inwardly, since the appearance of most automotive parts is irregular and there may be multiple corners, the center positions of multiple clamping plates are fixed under the action of the connecting sphere and the spherical sleeve, and the springs in the same direction can be compressed or rebounded along the appearance of different parts, so that multiple clamping plates can adapt to angles at different positions, further ensuring the clamping stability.

[0033] A side bracket 101 is provided on the side of the stand 2 opposite to the first rotating roller 9 , and a push rod 102 for pushing a workpiece is fixedly mounted on the side bracket 101 relative to one side of the conveyor belt 4 .

[0034] A push block 103 is fixedly connected to the movable end of the push rod 102 .

[0035] A rotating disk 104 is disposed between the two stands 2 and below the push rod 102 .

[0036] The rotating disk 104 is fixedly mounted on an output shaft of a motor base 105 .

[0037] A polished rod 508 and a second polished rod 511 are arranged inside the bearing base 506 and parallel to the screw rod 509 . The second curved frame 502 is movably connected to the second polished rod 511 , and the third curved frame 503 is movably connected to the polished rod 508 .

[0038] There are two polished rods 508 , and the two polished rods 508 are symmetrically arranged with respect to the lead screw 509 .

[0039] The third curved frame 503 is threadedly connected to the screw rod 509 via a nut 507 , and the nut 507 is fixedly connected to the third curved frame 503 .

[0040] The second curved frame 502 is threadedly connected to the second screw rod 510 via a second nut 512 , and the second nut 512 is fixedly connected to the second curved frame 502 .

[0041] The working principle is: When clamping parts, the parts are placed on the turntable, and the scanning heads on both sides are used to scan the placed parts, and the turntable is controlled to adjust its direction so that the clamping direction remains consistent. After adjustment, the push rod pushes the parts onto the conveyor belt, thereby realizing rapid loading of parts and reducing the difficulty of operation. At the same time, the width of the scanned parts can be used to control the electric slide to move on the electric slide rail, so that the distance between the two limit rods is equal to the width distance. During the pushing process, a direction guide from wide to narrow is formed to ensure that the parts are in the same position when entering the conveyor belt, thereby facilitating subsequent positioning and clamping. During clamping and positioning, since two groups of clamping structures are set in the clamping mechanism, wherein the third bending frame is located between the second bending frames, and the clamping plate mechanism is higher than the second clamping plate mechanism, when clamping parts, firstly, scanning is performed by the scanning head to scan out the height and width of the parts, and in the subsequent conveying process, data processing is performed to determine whether to use the second clamping plate mechanism alone for clamping or to use the clamping plate mechanisms for clamping at the same time, so that the appropriate clamping area can be selected according to the different volumes of the workpieces, while ensuring the stability of the stress points, the surrounding range of the welding points is also expanded, which is beneficial to subsequent welding. At the same time, during the conveying process, the clamping distance of the second clamping plate mechanism or the clamping plate mechanism will be changed according to the measured clamping width, and changed to a distance slightly wider than the clamping width, thereby shortening the time required for inward clamping, improving processing efficiency, and also avoiding the unstable placement of parts caused by long clamping time; When the second clamping plate mechanism and the clamping plate mechanism are clamped inwardly, since the appearance of most automotive parts is irregular and there may be multiple corners, the center positions of multiple clamping plates are fixed under the action of the connecting sphere and the spherical sleeve, and the springs in the same direction can be compressed or rebounded along the appearance of different parts, so that multiple clamping plates can adapt to angles at different positions, further ensuring the clamping stability.

[0042] When the above-mentioned positioning and clamping equipment is used, the distance between the two limit rods is adjusted by moving the electric slider along the electric slide rail, and a guide belt is provided between the limit rod and the second limit rod, so that the transmitted parts can be guided and the position of the parts can be pre-adjusted, which improves the position accuracy of the parts and improves the clamping effect. It is also beneficial to reduce the displacement of the clamping mechanism, thereby saving adjustment time and improving production efficiency. The clamping mechanism and the second clamping mechanism are adjusted according to the different volumes of added parts. The parts can also be initially clamped and fixed by adjusting the second clamping mechanism, and then the parts are clamped and fixed for the second time by adjusting the two clamping mechanisms located between the second bending frames to move toward each other, which greatly improves the stability of the clamping of the parts and reduces the interference with the welding points, which is beneficial to subsequent welding processing.

[0043] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning and clamping device, comprising: A conveyor belt (4), characterized in that: the conveyor belt (4) is sleeved between a first rotating roller (9) and a second rotating roller (10), and the first rotating roller (9) and the second rotating roller (10) are respectively rotatably mounted on a support frame (11), and a frame (8) is located on the inner side of the conveyor belt (4) and is fixedly connected to the support frame (11); An electric slide rail (108) is arranged at one end of the frame (8) close to the first rotating roller (9), and the electric slide rail (108) is arranged perpendicular to the axial direction of the conveyor belt (4). Two electric sliders (107) are slidably connected to the outer wall of the electric slide rail (108), and the two oppositely arranged electric sliders (107) are fixedly connected to a bent frame (109) having a limit rod (110). The conveyor belt (4) is located between the two bent frames (109). A stand (2) is symmetrically arranged on the side of the first rotating roller (9) opposite to the electric slide rail (108). A second limit rod (113) is installed on the opposite side of the two stand (2), and the second limit rod (113) is fixedly connected to the stand (2) via a support rod (112). A guide belt (111) is arranged between the limit rod (110) and the second limit rod (113). A bearing base (506) is symmetrically arranged on both sides of the middle part of the frame (8) about the axis of the conveyor belt (4), a second bent frame (502) movably connected to the second screw rod (510) is arranged inside and opposite to the bearing base (506), and two second bent frames (502) are arranged on the same side, a support frame (501) located on the top of the second bent frame (502) fixes the two second bent frames (502), and a second clamping plate mechanism (7) is fixedly connected to the opposite sides of the two supports (501), the middle part of the support frame (501) is hollowed out, the two second clamping plate mechanisms (7) are arranged opposite to each other, a third bent frame (503) movably connected to the screw rod (509) is arranged between the two second bent frames (502) on the same side, and a clamping plate mechanism (6) is arranged on the opposite sides of the top of the third bent frame (503), and the clamping plate mechanism (6) can pass through the hollow area of ​​the support frame (501).

2. The positioning and clamping device according to claim 1, characterized in that: The clamping plate mechanism (6) and the second clamping plate mechanism (7) further comprise: a housing (12) having a mounting groove (604), a plurality of clamping plates (601) and a connecting ball (602) fixedly connected to the clamping plates (601); a plurality of spherical sleeves (605) movably connected to the connecting ball (602) are arranged inside the mounting groove (604); and a spring (603) is arranged on both sides of the spherical sleeve (605) and between the clamping plates (601) and the inner wall of the mounting groove (604).

3. The positioning and clamping device according to claim 1 or 2, characterized in that: A side bracket (101) is provided on the side of the stand (2) opposite to the first rotating roller (9), and a push rod (102) for pushing a workpiece is fixedly mounted on the side bracket (101) relative to one side of the conveyor belt (4).

4. The positioning and clamping device according to claim 3, characterized in that: A push block (103) is fixedly connected to the movable end of the push rod (102).

5. The positioning and clamping device according to claim 3, characterized in that: A rotating disk (104) is provided between the two upright frames (2) and below the push rod (102).

6. The positioning and clamping device according to claim 5, characterized in that: The rotating disk (104) is fixedly mounted on an output shaft of a motor base (105).

7. The positioning and clamping device according to claim 1, characterized in that: A light rod (508) and a second light rod (511) are arranged inside the bearing base (506) and parallel to the screw rod (509); the second curved frame (502) is movably connected to the second light rod (511); and the third curved frame (503) is movably connected to the light rod (508).

8. The positioning and clamping device according to claim 7, characterized in that: Two polished rods (508) are provided, and the two polished rods (508) are symmetrically arranged with respect to the lead screw (509).

9. The positioning and clamping device according to claim 1, characterized in that: The third curved frame (503) is threadedly connected to the screw rod (509) via a nut (507), and the nut (507) is fixedly connected to the third curved frame (503).

10. The positioning and clamping device according to claim 1, characterized in that: The second curved frame (502) is threadedly connected to the second screw rod (510) via a second nut (512), and the second nut (512) is fixedly connected to the second curved frame (502).

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