Feeding positioning mechanism

Abstract

The utility model relates to the technical field of mechanical automation, in particular to a feeding positioning mechanism which comprises a lifting drive, a lifting device and a clamping jaw device fixed on the lifting device, and the clamping jaw device comprises a sliding plate seat, a clamping arm drive, at least two clamping jaws and clamping arms respectively driving the clamping jaws. The clamping arm driver is fixed on the sliding plate seat to drive the driving end to rotate and drive the swinging end to move; and the sliding plate seat is fixedly connected with one side of the lifting device in an up-down sliding manner. The clamping jaws are driven by the clamping arms to symmetrically clamp and loosen, so that the opening and closing of the clamping jaws are larger, and the clamping device is suitable for materials with different sizes. Meanwhile, the driving ends of the clamping arms are oppositely arranged, the clamping arms are driven by the clamping arms to rotate, the movement range of the driving ends is small, the movement range of the driving is enlarged through swinging, and the driving can be set to be smaller.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical automation, in particular to a feeding positioning mechanism. Background Art

[0002] In mechanical automation, especially in the automated cutting of profile structures, automatic lifting of materials for processing and feeding has been applied. With the development of laser technology, laser cutting of profiles has become a reality, which has led to rapid development of profile cutting in automated processing. Laser cutting machines and feeding mechanisms are constantly developing in the direction of automation, multi-function and large-scale materials, and products are constantly being updated. The automation and wide adaptability of the feeding mechanism are very important for profile cutting.

[0003] The existing support mechanism, such as the support assembly disclosed in the Chinese utility model patent CN218908923U "A material unloading device and a cutting machine using the same", has an auxiliary wheel of the support assembly that can rise or fall along the guide shaft so that the center of the material is aligned with the center of the next processing step. However, the centering of the material is pushed by the auxiliary wheel, which makes it difficult to achieve accurate centering of materials of different sizes, and the width of the auxiliary wheel also limits the size of the material. Chinese patent invention patent CN114083330A discloses that the material can be clamped and centered by setting a central gear between the left and right clamping parts, but this setting is relatively in the notes, suitable for a separate setting, but difficult to apply to the support mechanism. Chinese utility model patent CN219852665U discloses a central support mechanism, which drives two centering frames to move toward the middle through a centering drive element, so that two centering guide rollers clamp the pipe. However, the prior art does not disclose the specific structure of the "centering drive element", and how to achieve it is still a problem, and the simultaneous movement of the centering guide roller and the support wheel limits the size of the applicable material. Utility Model Content

[0004] In response to one or more problems existing in the above-mentioned existing automatic feeding and supporting mechanisms for pipes, profiles, etc., the utility model provides a feeding and positioning mechanism that can quickly achieve the centering or clamping of pipes of different sizes and shapes, so that the structure can be miniaturized and the range of the jacking and lifting can be increased.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A feeding positioning mechanism comprises a lifting drive, a lifting device and a clamping device fixed on the lifting device, the clamping device comprises a slide plate seat, a clamping arm drive, and at least two clamping jaws and clamping arms respectively driving the clamping jaws; the two clamping jaws are relatively arranged on one side of the lifting device and can slide horizontally relative to the lifting device; each clamping arm comprises a swinging end and a driving end, the swinging end is hinged to the clamping jaw, and the driving end is relatively arranged and hingedly connected to the slide plate seat; the clamping arm drive is fixed on the slide plate seat to drive the driving end to rotate, thereby driving the swinging end to move; the slide plate seat can slide up and down and is fixedly connected to one side of the lifting device.

[0007] The utility model drives the clamping arm to symmetrically clamp and release the clamping jaws, so that the opening and closing of the clamping jaws is larger and suitable for materials of different sizes. At the same time, the driving ends of the clamping arms are relatively arranged, and the clamping arms are driven to rotate by the clamping arm, so that the range of motion of the driving ends is small. The range of motion of the drive is enlarged by swinging, so that the drive can be set smaller. In order to solve the problem of up and down movement when the driving end rotates, the driving end and the clamping arm drive are both arranged on the slide seat, and the slide seat can move up and down. The utility model realizes a larger range of symmetrical movement of the clamping jaws through the coordinated cooperation of the slide seat, the clamping arm and the clamping jaws, and the overall structure is small, which is convenient for installation on the lifting device, making the lifting device miniaturized and flexible to install.

[0008] Preferably, the slide plate seat is provided with a fourth slide block, and a fourth guide rail is vertically arranged on the lifting device. The fourth slide block cooperates with the fourth guide rail so that the fourth slide block can slide up and down.

[0009] The slider and guide rail structure is stable and low-cost, can better limit movement in other directions, and is easy to install.

[0010] Preferably, the driving end is provided with a toothed disc; the clamping arm drive comprises a piston rod, on which a rack is provided, the rack is located between two oppositely arranged toothed discs and respectively meshed with the toothed discs, and the rack moves up and down to drive the toothed discs to rotate, or, the clamping arm drive comprises a screw, on which a thread is provided, the screw is located between two oppositely arranged toothed discs and respectively meshed with the toothed discs, and the rotation of the screw drives the toothed discs to rotate.

[0011] The utility model uses the cylinder to push the piston rod to make a linear reciprocating motion, and the coordination of the rack and the toothed disc can quickly rotate the clamping arm. The structure is stable and efficient. Moreover, the coordination of the rack and the toothed disc only requires a short movement of the rack, which can realize the miniaturization of the driving structure. Another way is to drive the worm to rotate through the rotation of the servo motor, and this structure has more precise control.

[0012] Preferably, the clamp arm is L-shaped, with a swing end and a driving end at both ends, the driving end is provided with a toothed disc, and the toothed disc is provided with a toothed portion at a position away from the swing end. The L-shaped arrangement of the novel device avoids interference of the connecting portion of the driving end with the toothed disc, so that the range of tooth design on the toothed disc is larger.

[0013] Preferably, the lifting device is provided with a third guide rail in the horizontal direction, and the two clamping jaws are provided with a third slider respectively, and the third slider slides horizontally on the third guide rail. The clamping jaw can solve the problem of fixing and sliding the clamping jaw more stably through the limitation of the cooperation between the guide rail and the slider, with high mechanical efficiency and small resistance.

[0014] Preferably, a magnetic scale system is included, the magnetic scale system includes a magnetic scale and a magnetic head, the magnetic scale is arranged in parallel with the third guide rail, the magnetic head is fixed on the clamp, the movement of the clamp drives the magnetic head to move, the magnetic head cooperates with the magnetic scale to obtain the spacing information of the two clamps. The magnetic scale system can feedback the width of the clamp and compare it with the set size. If the size does not match the size to be processed, an alarm can be processed or a subsequent program can be processed. Therefore, this feeding and positioning mechanism can be applicable to the processing of materials of different widths, and is also convenient for subsequent processing and adjustment, and has a wide range of applications.

[0015] Preferably, the clamping jaw is provided with a clamping block, or the clamping jaw is provided with a vertical roller frame, and the vertical roller frame is provided with a rotatable vertical stick. The arrangement of the clamping block of the novel type can make the clamping jaw more stable and accurate, and the vertical stick can also give certain restrictions when the material moves, so that the longitudinal transmission of the material is more stable.

[0016] Preferably, the lifting device includes a first lifting member and a second lifting member, which are connected to slide up and down through a guide rail and a slider, and include a first loading drive and a second lifting drive that respectively drive the first lifting member and the second lifting member to rise or fall. A horizontal stick support is provided on the top of the first lifting member, and the second lifting member is connected to the clamping device, and the second lifting member drives the clamping device to rise or fall.

[0017] The novel device can support and facilitate the longitudinal movement of materials through the horizontal stick, and is suitable for materials of different sizes, and cooperates with the clamping claw to achieve positioning and support. The clamping claw device is arranged on the second lifting member, so that the clamping claw can also be lifted and lowered, so that the clamping claw can clamp a wider range of materials without interference, and can adapt to the feeding of different feeding mechanisms in the previous step.

[0018] Preferably, it comprises a fixed bottom plate and a fixed vertical plate which are vertically fixedly connected to each other, a first feeding drive is arranged on one side of the fixed vertical plate, a first lifting guide rail is arranged on the other side of the fixed vertical plate, a first lifting slider which cooperates with the first lifting guide rail is arranged on one side of the first lifting member, and the first lifting member also fixes a lifting rack, the first feeding drive is provided with a lifting gear, the lifting gear passes through the fixed vertical plate and meshes with the lifting rack to drive the first lifting member to rise or fall, the transverse roller support comprises a roller bracket with a groove and a cylindrical transverse roller, the transverse roller is arranged in the groove, and the two ends are rotatably connected to the roller bracket, and the transverse roller supports the material. In the present utility model, the first feeding drive is provided with a lifting gear to drive so that the lifting height of the first lifting member can be accurately controlled, and it is convenient to select according to the required output power. The cylindrical stick can adapt to materials of different sizes, making the design of the feeding positioning mechanism more convenient.

[0019] Preferably, a second lifting guide rail is provided on the other side of the first lifting member, and a second lifting slider is provided on one side of the second lifting member in cooperation with the second lifting guide rail. One end of the second lifting drive is fixed to the lower part of the first lifting member, and the other end is fixed to one side of the second lifting member. The second lifting drive pushes the second lifting member to move up and down. A third guide rail is provided horizontally and a fourth guide rail is provided vertically on the other side of the second lifting member, and the third guide rail is above the fourth guide rail. In the utility model, the second lifting drive saves the design space of the loading and positioning mechanism, avoids interference with the second lifting member, and has high lifting efficiency.

[0020] Preferably, the first feeding drive is a servo motor, the second lifting drive and the clamping arm drive are servo motors or pneumatic cylinders or electric cylinders, and the guide rail is an I-shaped linear slide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of a feeding positioning mechanism of the utility model;

[0022] Figure 2 It is a schematic diagram of a feeding positioning mechanism of the utility model from an oblique upward perspective;

[0023] Figure 3 This is a schematic diagram of the main structure of a feeding positioning mechanism of the utility model;

[0024] Figure 4 It is a side view structural schematic diagram of a feeding positioning mechanism with the dust cover removed;

[0025] Figure 5 A schematic diagram of a three-dimensional structure of a feeding positioning mechanism with a dust cover removed;

[0026] Figure 6It is a partial structural exploded diagram of a feeding positioning mechanism;

[0027] Figure 7 It is a partial structural exploded diagram of a feeding positioning mechanism;

[0028] Figure 8 It is an exploded top view of a partial structure of a feeding positioning mechanism;

[0029] Fig. 9 It is a schematic diagram of the main structure of the clamping jaw device;

[0030] Fig.10 It is a schematic diagram of the back structure of the gripper device;

[0031] Fig.11 It is a schematic diagram of the driving structure of the clamping device;

[0032] Fig.12 It is a schematic diagram of the guide rail structure of the clamping jaw device;

[0033] Fig.13 It is a schematic diagram of the structure of the skateboard seat and the cover plate;

[0034] Fig.14 It is a solid diagram of a vertical stick structure.

[0035] The numbers in the figure show:

[0036] 20-feeding positioning mechanism, 21-fixed bottom plate, 22-fixed vertical plate, 221-first feeding drive, 222-first lifting guide rail, 223-lifting gear, 23-lifting device, 230-first lifting member, 231-first lifting slider, 232-lifting rack, 233-roller bracket, 234-cross bar, 235-cross bar support, 236-second lifting guide rail, 240-second lifting member, 241-second lifting slider, 242-second lifting drive, 25-clamping device, 2 51-clamping claw, 2511-clamping block, 2512-vertical roller, 2513-vertical roller frame, 2514-vertical stick, 2515-third guide rail, 2516-third slider, 252-clamping arm, 2521-swing end, 2522-driving end, 253-clamping arm drive, 2531-piston rod, 2532-rack, 255-toothed disc, 256-slide plate seat; 2561-fourth slider, 2562-fourth guide rail, 2563 cover plate, 260-magnetic head, 270-magnetic scale. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more, unless otherwise clearly defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. Example

[0042] The following describes an embodiment of the present invention in conjunction with the accompanying drawings. Figure 1-5As shown, the loading and positioning mechanism 20 includes a fixed bottom plate 21, a fixed vertical plate 22, a lifting device 23, a clamping device 25 and a drive. The lifting device 23 includes a first lifting member 230 and a second lifting member 240. The fixed vertical plate 220, the first lifting member 230, the second lifting member 240, and the clamping device 250 are arranged in sequence, and multiple drives drive the lifting members and the clamping devices to move respectively. The fixed bottom plate 210 and the fixed vertical plate 220 are fixedly connected and arranged at right angles. The fixed bottom plate 210 is arranged horizontally and located at the bottom, and the fixed vertical plate 220 is arranged vertically.

[0043] like Figure 4-8 As shown, the first feeding drive 221 is fixed on one side (left side) of the fixed vertical plate 22, and the first lifting guide rail 222 is fixed on the other side (right side). The first lifting member 230 is equipped with a first lifting slider 231 that cooperates with the first lifting guide rail 222. The first lifting guide rail 222 and the first lifting slider 231 are symmetrically arranged, so that the first lifting member 230 is evenly stressed. A lifting rack 232 is fixed on the first lifting member 230 between the opposite first lifting sliders 231, and the first feeding drive 221 is provided with a lifting gear 223. The lifting gear 223 and the lifting rack 232 are meshed to drive the first lifting member 230 to move up and down. The first feeding drive 221 is a servo motor, which is driven by the combination of gears and racks. Of course, it can also be replaced by a worm and rack. The servo motor has high control accuracy, large output power, and is easy to control.

[0044] like Figure 4-6 As shown, a horizontal rod support 235 is fixed on the top of the first lifting member 230, and the horizontal rod support 235 includes a connecting roller bracket 233 fixed to the top of the first lifting member 230. The middle groove on the upper side of the roller bracket 233 is substantially the radius of the horizontal rod 234. The two ends of the horizontal rod 234 are fixed on both sides of the groove of the roller bracket 233. The horizontal rod 234 is a cylindrical rotatable component. The rod 234 supports the bottom of the material when working, and because it can roll, it has less resistance to the forward movement of the material.

[0045] like Figure 6-8 As shown, a second lifting guide rail 236 is fixed on the right side of the first lifting device 230, and a second lifting slider 241 is provided on the left side of the second lifting member 240. The second lifting guide rail 236 and the second lifting slider 241 cooperate with each other and move up and down under the drive of the second lifting drive 242. One end of the second lifting drive 242 is fixed to the first lifting device 230, and the other end is fixed to the bottom of the second lifting member 240, pushing the second lifting member 240 to move up and down. The second lifting drive 242 is a push rod structure for linear motion, such as a cylinder, an electromagnetic cylinder, etc., which is directly driven, or a servo motor, through the combination of a screw-nut or a worm and a rack.

[0046] like Figure 9-13 As shown, the clamping device 25 includes a slide plate seat 256, a clamping arm driving 253 fixed on the slide plate seat 256, and a clamping jaw 251 and a clamping arm 252 installed on the lifting device 23 and arranged symmetrically on the left and right sides. The two clamping jaws 251 are fixed on one side (right side) of the lifting device 23 through the cooperation of a slider and a guide rail, and the clamping jaws 251 can be relatively opened and closed by sliding movement. One end of the clamping arm 252 is a swing end 2521, and the swing end 2521 is hingedly connected to the clamping jaw 251 through a hinge column or an axis. The swing end 2521 can rotate around the hinge column or the axis relative to the clamping jaw 251, and the movement of the swing end 2521 can drive the clamping jaw 251 to move on the guide rail. The other end of the clamping arm 252 is a driving end 2522, and the driving end 2522 is pivoted on the slide plate seat 256 and can rotate along the pivot axis. The clamp arm drive 253 pushes the driving end 2522 to rotate around the pivot axis, and the swing end 2521 swings to have a horizontal sub-movement, which pushes the two clamping jaws 251 to move toward or away from each other. The connection between the clamp arm drive 253 and the driving end 2522 can be a push rod pushing a connecting rod to move, or a slide groove and a connecting rod are provided to cooperate. In this embodiment, the specific scheme is as follows. The clamp arm drive 253 includes a piston rod 2531, and the head of the piston rod 2531 is relatively provided with a driving rack 2532, and a toothed disc 255 that can mesh with the driving rack 2532 is correspondingly provided at the driving end 2522, and the toothed disc 255 is at least partially provided with meshing teeth on the circumference, and its center is pivotally connected to the slide seat 256. The driving rack 2532 is relatively provided between the relatively provided toothed discs 255, and the driving rack 2532 meshes with the toothed disc 255 for synchronous driving. The clamp arm drive 253 pushes the piston rod 2531, and because the driving rack 2532 and the toothed disc 255 are meshed, the toothed disc 255 rotates, driving the clamp arm 252 to swing, and the swing end 253 swings in a horizontal sub-movement, respectively pushing the two clamping jaws 251 to move toward or away from each other. Since the rotation of the toothed disc 255 also has a vertical sub-movement, the slide seat 256 is fixed by a slider vertically arranged on the guide rail lifting device 23 and arranged on the slide seat 256 to cooperate with it. When the clamp arm drive 253 drives the clamping jaws 251 to work, the two clamping jaws 251 open and close, and the slide seat 256 and the clamp arm drive 253 and the drive end 2522 fixed thereon move up and down.

[0047] In this embodiment, the slide seat 256 and the clamping claw 251 are slidably fixed on the second lifting member 240 of the lifting device 23 through guide rails and sliders. The clamping arm drive 253 is a cylinder or an electromagnetic cylinder, etc., which drives and pushes the piston rod 2531 to perform up and down piston motion.

[0048] In some embodiments, the clamp arm drive 253 may also be a servo motor, with a worm gear provided at its output end, which cooperates with a toothed disc 255 to drive the toothed disc 255 to rotate. The clamp arm is L-shaped, with a swing end and a driving end at both ends, respectively. The driving end is provided with a toothed disc, and the toothed disc is provided with a toothed portion at a position away from the swing end.

[0049] A magnetic scale 270 is arranged on the lifting device 23 in parallel with the guide rail, and a magnetic head 260 is arranged on one of the clamps 251. The magnetic head 260 and the magnetic scale 270 are in contact or have a small gap. The magnetic head 260 can read the data of the magnetic scale 270 and output a signal, so that the distance between the clamps 251 can be calculated to detect the width of the material. The magnetic scale is a prior art, such as Miran's MR50 magnetic scale. The feedback signal of the magnetic head 260 can be used to detect whether the width of the fallen material is consistent with the material to be processed, to ensure that the processed material is correct and to avoid knife collision accidents. Specifically, the magnetic scale 270 is arranged at the upper end of the second lifting member 240.

[0050] like Figure 3 , 14 As shown, a clamping block 2511 is provided on the opposite side (inner side) of the clamping jaw 251. The opposite side (inner side) of the clamping block 2511 is a plane with high strength, and is in frequent contact with the material without being worn or deformed. In some embodiments, the clamping block 2511 can be replaced with a vertical roller 2512. The vertical roller 2512 includes a vertical roller frame 2513 and a vertical stick 2514. The vertical stick 2514 is vertically arranged, fixed on the vertical roller frame 2513 and can roll, and the vertical roller frame 2513 is fixed on the clamping jaw 251. Two vertical rollers 2512 are arranged opposite to each other on the inner side of the two oppositely arranged clamping jaws 251. The opposite vertical sticks 2514 clamp the material from both sides of the material, and the material can roll in the longitudinal direction (the length direction).

[0051] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, which is not limited thereto. Therefore, if a person skilled in the art is inspired by the present invention and creatively designs methods and embodiments similar to the technical solution without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A material loading and positioning mechanism, comprising a lifting drive, a lifting device (23) and a clamping device (25) fixed on the lifting device (23), characterized in that: The clamping device (25) comprises a slide plate seat (256), a clamping arm drive (253), and at least two clamping jaws (251) and clamping arms (252) for respectively driving the clamping jaws (251); the two clamping jaws (251) are arranged relative to each other on one side of the lifting device (23) and can slide horizontally relative to the lifting device (23); each clamping arm (252) comprises a swing end (2521) and a driving end (2522); the swing end (2521) is hinged to the clamping jaw (251), and the driving end (2522) is arranged relative to the slide plate seat (256) and is hingedly connected; the clamping arm drive (253) is fixed on the slide plate seat (256) to drive the driving end (2522) to rotate, thereby driving the swing end (2521) to move; the slide plate seat (256) is fixedly connected to one side of the lifting device (23) so as to be able to slide up and down.

2. The loading and positioning mechanism according to claim 1, characterized in that: The slide plate seat (256) is provided with a fourth slide block (2561), and a fourth guide rail (2562) is vertically provided on the lifting device (23). The fourth slide block (2561) cooperates with the fourth guide rail (2562) so that the fourth slide block (2561) can slide up and down.

3. The loading and positioning mechanism according to claim 2, characterized in that: The driving end (2522) is provided with a toothed disc (255); the clamping arm drive (253) comprises a piston rod (2531), and the piston rod (2531) is provided with a rack (2532); the rack (2532) is located between two oppositely arranged toothed discs (255) and is respectively meshed with the toothed discs (255); the rack (2532) moves up and down to drive the toothed discs (255) to rotate; or, the clamping arm drive (253) comprises a screw rod, and the screw rod is provided with a thread; the screw rod is located between two oppositely arranged toothed discs (255) and is respectively meshed with the toothed discs (255); the screw rod rotates to drive the toothed discs (255) to rotate.

4. The loading and positioning mechanism according to claim 3, characterized in that: The clamp arm (252) is L-shaped, with two ends respectively being a swing end (2521) and a driving end (2522); the driving end (2522) is provided with a toothed disc (255); and the toothed disc (255) is provided with a toothed portion at a position away from the swing end (2521).

5. The loading and positioning mechanism according to claim 1, characterized in that: The lifting device (23) is laterally provided with a third guide rail (2515), and the two clamping jaws (251) are respectively provided with a third sliding block (2516), and the third sliding block (2516) slides horizontally on the third guide rail (2515).

6. The loading and positioning mechanism according to claim 4, characterized in that: The invention comprises a magnetic scale system, wherein the magnetic scale system comprises a magnetic scale (270) and a magnetic head (260), wherein the magnetic scale (270) is arranged in parallel with a third guide rail (2515), and the magnetic head (260) is fixed on the clamp (251), and the movement of the clamp (251) drives the magnetic head (260) to move, and the magnetic head (260) cooperates with the magnetic scale (270) to obtain the spacing information between the two clamps (251).

7. The loading and positioning mechanism according to any one of claims 1 to 5, characterized in that: The clamping jaw (251) is provided with a clamping block (2511), or the clamping jaw (251) is provided with a vertical roller frame (2513), and the vertical roller frame (2513) is provided with a rotatable vertical stick (2514).

8. The loading and positioning mechanism according to any one of claims 1 to 5, characterized in that: The lifting device (23) comprises a first lifting member (230) and a second lifting member (240), the first lifting member (230) and the second lifting member (240) being connected so as to slide up and down through a guide rail and a slider, and comprising a first feeding drive (221) and a second lifting drive (242) for respectively driving the first lifting member (230) and the second lifting member (240) to rise or fall; a horizontal rod support (235) is provided on the top of the first lifting member (230), the second lifting member (240) is connected to the clamping device (25), and the second lifting member (240) drives the clamping device (25) to rise or fall.

9. The loading and positioning mechanism according to claim 8, characterized in that: The invention comprises a fixed bottom plate (21) and a fixed vertical plate (22) which are vertically fixedly connected to each other, a first feeding drive (221) is arranged on one side of the fixed vertical plate (22), a first lifting guide rail (222) is arranged on the other side of the fixed vertical plate (22), a first lifting slider (231) which cooperates with the first lifting guide rail (222) is arranged on one side of the first lifting member (230), the first lifting member (230) is also fixed with a lifting rack (232), the first feeding drive (221) is provided with a lifting gear (223), the lifting gear (223) passes through the fixed vertical plate (22) and meshes with the lifting rack (232), driving the first lifting member (230) to rise or fall, and the cross-bar support (235) comprises a roller bracket (233) having a groove and a cylindrical cross roller (234), the cross roller (234) is arranged in the groove, and both ends are rotatably connected to the roller bracket (233), and the cross roller (234) supports the material.

10. The loading and positioning mechanism according to claim 8, characterized in that: A second lifting guide rail (236) is provided on the other side of the first lifting member (230), and a second lifting slider (241) is provided on one side of the second lifting member (240) in cooperation with the second lifting guide rail (236); one end of the second lifting drive (242) is fixed to the lower part of the first lifting member (230), and the other end is fixed to one side of the second lifting member (240); the second lifting drive (242) pushes the second lifting member (240) to move up and down; a third guide rail is transversely provided on the other side of the second lifting member (240) and a fourth guide rail is vertically provided; the third guide rail is above the fourth guide rail.

11. The loading and positioning mechanism according to claim 8, characterized in that: The first loading drive (221) is a servo motor, the second lifting drive (242) and the clamping arm drive (253) are servo motors or pneumatic cylinders or electric cylinders, and the guide rail is an I-shaped linear slide rail.

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