A laser cutting machine chuck assembly

Abstract

The present application discloses a chuck assembly for a laser cutting machine, comprising: a rear chuck device, a front chuck device, a horizontal moving device, and a lifting device; the rear chuck device is provided with a through rear chuck cavity; the horizontal moving device is connected to the rear chuck device, and is used to drive the rear chuck device to slide; the front chuck device is provided with a through front chuck cavity; the central axis of the front chuck cavity and the central axis of the rear chuck cavity are in the same vertical plane and are parallel; the lifting device is connected to the front chuck device, and is used to drive the front chuck device to move up and down. By using a hollow movable rear chuck device and a hollow lifting front chuck device with a hollow front chuck cavity, flexible use during laser cutting operations can be achieved, space utilization is good, and installation and maintenance costs are saved. It can also reduce product waste and save usage costs.

Description

Technical Field

[0001] The present application relates to the field of laser cutting technology, and in particular to a chuck assembly for a laser cutting machine. Background Art

[0002] The front chuck of current two-chuck laser tube cutting machines is either fixed to the machine or can only move linearly back and forth. This design reduces the flexibility and space utilization of the equipment, resulting in excessively large machine dimensions (most current two-chuck laser tube cutting machines are over 7 meters long), high installation and maintenance costs, and long remaining scraps from the cut product, which also increases operating costs. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a laser cutting machine chuck combination with good flexibility and space utilization, which can save the installation, maintenance and use costs of the laser cutting machine.

[0004] In order to achieve the above technical objectives, the present application provides a laser cutting machine chuck assembly, comprising: a rear chuck device, a front chuck device, a horizontal moving device, and a lifting device;

[0005] The rear chuck device is provided with a through rear chuck cavity;

[0006] The horizontal moving device is connected to the rear chuck device and is used to drive the rear chuck device to slide;

[0007] The front chuck device is provided with a through front chuck cavity;

[0008] The central axis of the front card cavity and the central axis of the rear card cavity are in the same vertical plane and are parallel;

[0009] The lifting device is connected to the front chuck device and is used to drive the front chuck device to move up and down.

[0010] Furthermore, the front chuck device includes a first bracket, a first hollow chuck mechanism and a first driving mechanism;

[0011] The first bracket is movably installed in the installation cavity along the vertical direction;

[0012] The first hollow chuck mechanism is rotatably mounted on the first bracket;

[0013] The first driving mechanism is installed on the first bracket and connected to the first hollow chuck mechanism, and is used to drive the first hollow chuck mechanism to rotate.

[0014] Furthermore, the first bracket is a plate-shaped structure, comprising a main board and two connecting boards integrally connected to the main board;

[0015] The first hollow chuck mechanism is mounted on the main board;

[0016] The two connecting plates are symmetrically connected to the bottom of the main board;

[0017] A first guide rail slider is vertically fixed on one side of the two connecting plates facing the rear chuck device.

[0018] Furthermore, the first hollow chuck mechanism includes a first chuck body, a first linear cylinder, and a roller clamp;

[0019] The first chuck body is rotatably mounted on the first bracket;

[0020] The first linear cylinder is installed in the first chuck body and is used to drive the roller clamping jaws to clamp;

[0021] The roller clamp is installed in the first chuck body and connected to the movable end of the first linear cylinder. The front clamping cavity that passes through the first chuck body and the first bracket in sequence is formed in the middle of the roller clamp.

[0022] Furthermore, the first driving mechanism includes a first rotating motor, a first driving pulley, a first driven pulley and a first belt;

[0023] The first rotary motor is mounted on the first bracket and is located below the first chuck body, and the output shaft of the first rotary motor is connected to the first driving wheel through a first reducer;

[0024] The first driven wheel is fixed on a rotating shaft that is rotatably matched with the first chuck body and the first bracket, and rotates synchronously with the first chuck body;

[0025] The first driving wheel is connected to the first driven wheel through the first belt.

[0026] Furthermore, it also includes an auxiliary clamping mechanism;

[0027] The auxiliary clamping mechanism includes a second linear cylinder, a fixed clamping jaw and a movable clamping jaw;

[0028] The second linear cylinder is horizontally mounted on the first bracket at the same side as the first driven wheel and is located above the first driven wheel;

[0029] The connecting end of the movable clamp is connected to the movable end of the second linear cylinder;

[0030] The connecting end of the fixed clamping jaw is connected to the fixed end of the second linear cylinder opposite to the movable end thereof;

[0031] A clamping gap communicating with the front clamping cavity is formed between the clamping end of the movable clamping jaw and the clamping end of the fixed clamping jaw.

[0032] Furthermore, the lifting device is specifically a lifting cylinder.

[0033] Furthermore, the rear chuck device includes a second bracket, a protective cover, a second hollow chuck mechanism and a second driving mechanism;

[0034] The protective cover is provided on the second bracket;

[0035] The second hollow chuck mechanism is rotatably mounted on the second bracket;

[0036] The second driving mechanism is installed on the second bracket and connected to the second hollow chuck mechanism, and is used to drive the second hollow chuck mechanism to rotate.

[0037] Furthermore, the second bracket includes a base frame and a fixing frame;

[0038] The fixing frame is installed on the top of the base frame;

[0039] The second hollow chuck mechanism is mounted on the fixing frame;

[0040] A second guide rail slider is symmetrically provided at the bottom of the chassis relative to the second hollow chuck mechanism.

[0041] Furthermore, the second hollow chuck mechanism includes a second chuck body, a third linear cylinder, and a tooth-gripping jaw;

[0042] The second chuck body is rotatably mounted on the fixing frame;

[0043] The third linear cylinder is mounted on the second chuck body and is used to control the clamping and releasing of the clamping jaws;

[0044] The clamping jaws are installed in the second chuck body and connected to the movable end of the third linear cylinder. The middle of the clamping jaws forms the rear clamping cavity which passes through the second chuck body, the fixing frame and the protective cover in sequence.

[0045] It can be seen from the above technical solutions that the present application can realize flexible use during laser cutting operations by setting a hollow movable rear chuck device and coordinating it with a hollow lifting front chuck device of a hollow front chuck cavity. When applied to laser cutting, when only the rear chuck device is used, the front chuck device can be lowered into the machine tool body by controlling the lifting device, and when needed, it can be extended out of the top of the machine tool body, which is more flexible to use, has good space utilization, and saves installation and maintenance costs. Moreover, when a certain amount of the cut product remains, the rear chuck device can be controlled to carry the product out of the front chuck device first, and then the front chuck device can be controlled to descend to avoid the movement of the rear chuck device, thereby enabling the rear chuck device to have a wider range of travel and be closer to the cutting device, thereby shortening the remaining tail of the product and saving the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0047] Figure 1 This is a schematic diagram of a first axis side of a laser cutting machine chuck assembly provided in this application applied to a laser cutting machine;

[0048] Figure 2 This is a schematic diagram of a laser cutting machine chuck assembly provided in this application applied to a second axis side of a laser cutting machine;

[0049] Figure 3 This is a schematic diagram of the coordination structure of the front chuck device and the lifting device of the chuck assembly of a laser cutting machine provided in this application;

[0050] Figure 4 This is a schematic structural diagram of a front chuck device of a laser cutting machine chuck assembly provided in this application;

[0051] Figure 5 This is a schematic structural diagram of a rear chuck device for a laser cutting machine provided in this application;

[0052] In the figure: 100, rear chuck device; 101, second bracket; 1011, fixing frame; 1012, base frame; 102, protective cover; 103, second chuck body; 104, clamping jaws; 105, second rotary motor; 106, limit switch; 107, trigger; 108, second guide rail slider;

[0053] 200, front chuck assembly; 201, first bracket; 2011, main board; 2012, connecting plate; 202, first chuck body; 203, first linear cylinder; 204, roller clamp; 205, first rotary motor; 206, first driving pulley; 207, hydraulic buffer; 208, first speed reducer; 209, first guide rail slider; 210, first driven pulley; 211, movable clamp; 212, fixed clamp; 213, light point origin sensor; 214, second linear cylinder;

[0054] 300, lifting device;

[0055] 400, cutting device; 401, laser cutting head; 402, Z-axis drive mechanism; 403, X-axis drive mechanism;

[0056] 500, machine tool body; 501, mounting cavity; 502, first guide rail seat; 503, second guide rail seat; 504, organ protective cover;

[0057] 600, horizontal moving device; 601, spur rack; 602, third rotating motor; 603, second reducer;

[0058] 700. Gantry; 701. Limiting mechanism. DETAILED DESCRIPTION

[0059] The following will clearly and completely describe the technical solutions of the embodiments of the present application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present application, not all of them. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the embodiments of the present application.

[0060] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0061] In the description of the embodiments of the present application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, replaceable connections, or integral connections. They can also refer to mechanical connections or electrical connections. They can also refer to direct connections or indirect connections through an intermediate medium. They can also refer to internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0062] The embodiment of the present application discloses a chuck assembly for a laser cutting machine.

[0063] See also Figure 1 as well as Figure 2 , an embodiment of a laser cutting machine chuck assembly provided in the embodiments of the present application includes:

[0064] The rear chuck device 100, the front chuck device 200, the horizontal moving device 600 and the lifting device 300; the rear chuck device 100 is provided with a through rear clamping cavity and can be movably mounted on the machine tool body 500 of the cutting machine; the horizontal moving device 600 is connected to the rear chuck device 100 and can be mounted on the machine tool body 500, and is used to drive the rear chuck device 100 to slide along the length direction of the machine tool body 500; the front chuck device 200 is provided with a through front clamping cavity and is movably mounted at the front end position of the machine tool body 500; the central axis of the front clamping cavity and the central axis of the rear clamping cavity are in the same vertical plane and are parallel; the lifting device 300 is connected to the front chuck device 200, and is used to drive the front chuck device 200 to move up and down, and can be correspondingly mounted on the machine tool body 500 so that the front chuck device 200 can be movably extended from the top of the machine tool body 500; the corresponding cutting device 400 on the cutting machine can be mounted on the machine tool body 500 on the side of the front chuck device 200 away from the rear chuck device 100.

[0065] Specifically, the structure of the machine body 500 can refer to a conventional laser tube cutting machine, without specific limitations. The central axis of the front clamping cavity and the central axis of the rear clamping cavity are in the same vertical plane and are parallel. In this way, when both the front and rear clamping cavities are used, the fixed product can be aligned on the same axis, ensuring cutting accuracy.

[0066] As can be seen from the above technical solutions, the present application provides a hollow movable rear chuck device 100 with a hollow rear cavity and a horizontal movable device 600 to achieve movable adjustment, and cooperates with a hollow lifting front chuck device 200 with a hollow front cavity to achieve lifting adjustment through a lifting device 300, so as to achieve flexible use during laser cutting operations. When only the rear chuck device 100 is used, the front chuck device 200 can be lowered into the machine tool body 500 by controlling the lifting device 300, and when needed, it can be extended to the top of the machine tool body 500, which is more flexible to use, has good space utilization, and saves installation and maintenance costs. Moreover, when a certain amount of product is left after cutting, the rear chuck device 100 can be controlled to carry the product out of the front chuck device 200 first, and then the front chuck device 200 can be controlled to descend to avoid the movement of the rear chuck device 100, thereby enabling the rear chuck device 100 to have a wider range of travel and be closer to the cutting device 400, thereby shortening the product residual tail and saving use costs.

[0067] The above is the first embodiment of a laser cutting machine chuck assembly provided by the embodiment of the present application. The following is the second embodiment of a laser cutting machine chuck assembly provided by the embodiment of the present application. For details, please refer to Figures 1 to 5

[0068] A chuck assembly for a laser cutting machine includes: a rear chuck device 100, a front chuck device 200, a horizontal moving device 600, and a lifting device 300; the rear chuck device 100 is provided with a through rear chuck cavity; the horizontal moving device 600 is connected to the rear chuck device 100 and is used to drive the rear chuck device 100 to slide; the front chuck device 200 is provided with a through front chuck cavity; the central axis of the front chuck cavity and the central axis of the rear chuck cavity are in the same vertical plane and are parallel; the lifting device 300 is connected to the front chuck device 200 and is used to drive the front chuck device 200 to move up and down.

[0069] Furthermore, if Figure 1 as well as Figure 2 As shown, to facilitate installation of the front chuck assembly, a mounting cavity 501 can be provided at the front end of the machine tool body 500. The lifting device 300 is mounted within the mounting cavity 501, with the lifting end connected to the front chuck assembly 200. This allows for controlled extension and retraction of the front chuck assembly 200. The height of the mounting cavity 501 is sufficient to allow the front chuck assembly 200 to fully retract without affecting the operation of the rear chuck assembly 100, and is not particularly limited.

[0070] Furthermore, if Figure 1 as well as Figure 2As shown, the cutting machine can be a gantry-type cutting machine, and a gantry can be installed at the front end of the machine tool body 500; the U-shaped through cavity of the gantry is connected to the installation cavity 501 and is used to avoid the front chuck device 200, so as to avoid interference with the lifting and lowering movement of the front chuck device 200; the cutting device 400 is installed on the gantry. The structural composition of the cutting device 400 can refer to the design of the laser cutting device 400 of conventional laser cutting equipment, and there is no specific limitation. For example, it can include a laser cutting head 401, an X-axis drive mechanism 403 that controls the movement of the laser cutting head 401 along the gantry beam, and a Z-axis drive mechanism 402 that controls the movement of the laser cutting head 401 in the vertical direction. The Z-axis drive mechanism 402 can be installed on the X-axis drive mechanism 403 and move along the gantry beam direction together with the laser cutting head 401. Those skilled in the art can make appropriate changes based on this, and there is no specific limitation.

[0071] Furthermore, if Figure 3 as well as Figure 4 As shown, the front chuck device 200 comprises a first bracket 201, a first hollow chuck mechanism, and a first drive mechanism. The first bracket 201 is vertically movable within the mounting cavity 501; the first hollow chuck mechanism is rotatably mounted to the first bracket 201; and the first drive mechanism is mounted to the first bracket 201 and connected to the first hollow chuck mechanism, driving the first hollow chuck mechanism to rotate. This structural design enables the front chuck device 200 to both clamp and rotate the product. The overall design can be similar to conventional hollow chuck structures, with no specific limitations imposed.

[0072] Furthermore, taking the specific application structure given in the drawings of this case as an example, the first bracket 201 can be a plate-like structure, including a main board 2011, and two connecting plates 2012 integrally connected to the main board 2011; the first hollow chuck mechanism is installed on the main board 2011; the two connecting plates 2012 are symmetrically connected to the bottom of the main board 2011; the first guide rail slider 209 is vertically fixed on the side surface of the two connecting plates 2012 facing the rear chuck device 100; and a first guide rail seat 502 that cooperates with the first guide rail slider 209 is vertically provided in the installation cavity 501.

[0073] Specifically, the connecting plate 2012 and the main plate 2011 can be integrally formed, without limitation. A recessed cavity for mounting the first guide rail slider 209 can be provided on one side of the connecting plate 2012 facing the rear chuck assembly 100, thereby improving installation convenience. By providing a first guide rail seat 502 within the mounting cavity 501 and slidingly engaging the first guide rail slider 209 disposed on the connecting plate 2012, the stability of the lifting motion of the front chuck assembly 200 can be further improved. Those skilled in the art can make appropriate modifications based on this, without limitation.

[0074] Furthermore, to provide a certain degree of buffering protection during the lifting process, a hydraulic buffer 207 can be provided at the lower end of the outer side wall of the connecting plate 2012; a corresponding limiting mechanism that is in active contact with the hydraulic buffer 207 is also provided in the mounting cavity 501. The limiting mechanism can be installed on the vertical beam of the gantry, without specific limitation. When the chuck device 200 moves upward to a specified height, the contact between the hydraulic buffer 207 and the limiting mechanism can be used to slow down the ascent, thereby achieving a smoother and more stable arrival at the specified height. Those skilled in the art can make appropriate modifications based on this, without specific limitation.

[0075] Furthermore, the first hollow chuck mechanism may include a first chuck body 202, a first linear cylinder 203 and a roller clamp 204; the first chuck body 202 is rotatably mounted on the first bracket 201; the first linear cylinder 203 is mounted in the first chuck body 202, for driving the roller clamp 204 to clamp; the roller clamp 204 is mounted in the first chuck body 202 and is connected to the movable end of the first linear cylinder 203, and a front clamping cavity is formed in the middle of the roller clamp 204, which passes through the first chuck body 202 and the first bracket 201 in sequence.

[0076] Specifically, the first chuck body 202 can be composed of two sub-discs and other components, so that a certain installation gap is formed between the two sub-discs to facilitate the installation and fixation of the linear cylinder and the roller clamp 204. The product is clamped and released by the drive of the linear cylinder. For example, when compressed gas is injected into the linear cylinder, the roller clamps can be pushed toward each other along the center line of the front clamping cavity to clamp the workpiece; and the workpiece can be released by removing the compressed gas pressure and forming a negative pressure in the linear cylinder. Of course, other clamping mechanisms can also be used to replace the roller clamps 204 in this application. Different drive sources can be adapted to the replaced clamping mechanism. Those skilled in the art can make appropriate changes based on this, and there is no specific limitation. The rotational connection between the first chuck body 202 and the main board 2011 can be achieved by a radial bearing, that is, the rotating shaft of the first chuck body 202 is rotatably mounted on the first bracket 201, or specifically mounted on the main board 2011, via a radial bearing.

[0077] Furthermore, the first driving mechanism may include a first rotating motor 205, a first driving wheel 206, a first driven wheel 210 and a first belt; the first rotating motor 205 is installed on the first bracket 201 and is located below the first chuck body 202, and the output shaft of the first rotating motor 205 is connected to the first driving wheel 206 through the first reducer 208; the first driven wheel 210 is fixed on the rotating shaft (not shown in the figure) that cooperates with the rotation of the first chuck body 202 and the first bracket 201, and rotates synchronously with the first chuck body 202; the first driving wheel 206 is connected to the first driven wheel 210 through a first belt (not shown in the figure).

[0078] Specifically, the first rotary motor 205 can be a conventional servo motor, without specific limitation. The first driven pulley 210 can be mounted on the rotating shaft of the first chuck body 202 and the first bracket 201, and specifically located on the side of the mainboard 2011 facing the rear chuck device 100. The first rotary motor 205 can be connected to the first bracket 201 via a corresponding motor mounting bracket, without specific limitation. The first rotary motor 205 drives the first driving pulley 206 to rotate, which in turn drives the first driven pulley 210 to rotate synchronously via the first belt, thereby achieving synchronous rotation control of the first chuck body 202. In this embodiment, to improve the accuracy of controlling the rotation of the first chuck body 202, a light point origin sensor 213 can be used to detect the rotation of the first driven pulley 210, thereby more accurately controlling the rotation of the first driven pulley 210. Of course, other sensors can also be used, without specific limitation. Of course, transmission mechanisms such as gear meshing and chain drive can also be used for transmission coordination. Those skilled in the art can make appropriate modifications based on this, without specific limitation.

[0079] Furthermore, in order to further improve the clamping stability of the front chuck device 200 on the product, it can also include an auxiliary clamping mechanism; the auxiliary clamping mechanism can include a second linear cylinder 214, a fixed clamping jaw 212 and a movable clamping jaw 211; the second linear cylinder 214 is horizontally installed on the first bracket 201 at the same side as the first driven wheel 210, and is located above the first driven wheel 210; the connecting end of the movable clamping jaw 211 is connected to the movable end of the second linear cylinder 214; the connecting end of the fixed clamping jaw 212 is connected to the fixed end of the second linear cylinder 214 opposite to its own movable end; a clamping gap connected to the front clamping cavity is formed between the clamping end of the movable clamping jaw 211 and the clamping end of the fixed clamping jaw 212.

[0080] Specifically, the connection end of the fixed jaw 212 is connected to the fixed end of the second linear cylinder 214. Its clamping end can be positioned on the side of the hollow shaft cavity of the first chuck body 202, facing the rear chuck. The connection end of the movable jaw 211 is connected to the movable, retractable end of the second linear cylinder 214, and its clamping end is positioned opposite the clamping end of the fixed jaw 212, thereby providing auxiliary gripping for the product. Furthermore, the aforementioned light point origin sensor can be mounted on the first driven wheel 210, without limitation.

[0081] Furthermore, the lifting device 300 can be specifically a lifting cylinder, connected to an air pump power source and vertically fixed within the mounting cavity 501, with its telescopic end connected to the front chuck device 200. Specifically, the telescopic end can be connected to the bottom of the first bracket 201. Those skilled in the art can modify this design based on the actual structure of the first bracket 201 and the specific structure of the lifting cylinder. Of course, depending on actual needs, the lifting device 300 can also be a hydraulic cylinder, an electric cylinder, a linear module, etc., without limitation.

[0082] Furthermore, if Figure 5 As shown, the rear chuck assembly 100 includes a second bracket 101, a protective cover 102, a second hollow chuck mechanism, and a second drive mechanism. The second bracket 101 is slidably mounted on the top of the machine tool body 500 via a horizontal movement device 600. The protective cover 102 is mounted on the second bracket 101. The second hollow chuck mechanism is rotatably mounted on the second bracket 101. The second drive mechanism is mounted on the second bracket 101 and connected to the second hollow chuck mechanism, driving the second hollow chuck mechanism to rotate. Similar to the functions of the front chuck assembly 200, the structural design of the rear chuck assembly 100 also provides the functions of clamping and rotating the product.

[0083] Furthermore, the Figure 5 Taking the specific application structure given in as an example, the second bracket 101 may include a base frame 1012 and a fixed frame 1011; the fixed frame 1011 is installed on the top of the base frame 1012; the second hollow chuck mechanism is installed on the fixed frame 1011; the bottom of the base frame 1012 is symmetrically provided with a second guide rail slider 108 relative to the second hollow chuck mechanism; the top of the machine tool body 500 is provided with a second guide rail seat 503 that cooperates with the second guide rail slider 108.

[0084] Specifically, the shapes of the base frame 1012 and the fixing frame 1011 can be appropriately adjusted according to the actual installation and fixing needs, and there are no specific restrictions. The second guide rail slider 108 at the bottom of the base frame 1012 cooperates with the second guide rail seat 503 at the top of the machine tool body 500 to achieve a slidable fit between the rear chuck device 100 and the machine tool body 500, and then the control of the horizontal moving device 600 is used to achieve an adjustable sliding fit of the rear chuck device 100. In order to improve the safety of the sliding fit, a buffering accordion protective cover 504102 can be added at both ends of the second guide rail seat 503 at the top of the machine tool body 500, and there are no specific restrictions.

[0085] Furthermore, a limit switch 106 may be provided on an outer side wall of the chassis 1012 along the direction of the machine tool body 500 ; a triggering member 107 for triggering the limit switch 106 is provided at the rear end of the outer side edge of the machine tool body 500 along its own length direction.

[0086] Specifically, by providing a limit switch 106, the accuracy of the rear chuck device 100 resetting can be improved. When the rear chuck device 100 resets and moves to the point where the limit switch 106 is triggered by the trigger member 107, it stops. The limit switch 106 can be a conventional contact switch, such as a push switch; and the trigger member 107 can be a conventional trigger block. When the rear chuck device 100 moves to the point where the push switch is contacted and triggered by the trigger block, it stops moving. Of course, it can also be a non-contact switch, such as a photoelectric switch, and the trigger member 107 can be a device that cooperates with it, without any specific limitation.

[0087] Furthermore, the second hollow chuck mechanism includes a second chuck body 103, a third linear cylinder (not shown in the figure) and a tooth clamping jaw 104; the second chuck body 103 is rotatably mounted on the fixed frame 1011; the third linear cylinder is mounted on the second chuck body 103, and is used to control the clamping and releasing of the tooth clamping jaw 104; the tooth clamping jaw 104 is mounted in the second chuck body 103 and is connected to the movable end of the third linear cylinder, and a rear clamping cavity is formed in the middle of the tooth clamping jaw 104, which passes through the second chuck body 103, the fixed frame 1011 and the protective cover 102 in sequence.

[0088] Specifically, the second chuck structure can refer to the design of a conventional hollow chuck structure and will not be described in detail here. The coordination between the third linear cylinder and the toothed clamping jaw 104 in this embodiment is similar to the principle of the first linear cylinder 203 and the roller clamping jaw 204 described above. The design of the clamping jaw mechanism driven by a conventional linear cylinder can also refer to the clamping jaw design of existing hollow front chuck structures and will not be described in detail here.

[0089] Furthermore, the second drive mechanism may include a second rotary motor 105, a second driving pulley (not shown), a second driven pulley (not shown), and a second belt (not shown). The second rotary motor 105 is mounted on the fixed frame 1011 and extends out of the protective cover 102. Its output shaft is connected to the second driving pulley for synchronous rotation via a third reducer. The second driven pulley is fixed to a rotating shaft that rotates with the second chuck body 103 and the fixed frame 1011 and rotates synchronously with the second chuck body 103. The second driving pulley is connected to the second driven pulley via a second belt. The second drive mechanism in this embodiment has a similar driving principle to the first drive mechanism and will not be described in detail.

[0090] Furthermore, if Figure 1 As shown, the horizontal moving device 600 may include a third rotary motor 602, a gear (not shown) and a spur rack 601; the third rotary motor 602 is inverted on the base frame 1012 between the second hollow chuck mechanism and a second guide rail slider 108, and is connected to the gear through a second reducer 603; the spur rack 601 is installed on the top of the machine tool body along the length direction of the machine tool body 500 and is engaged with the gear.

[0091] Specifically, the third rotary motor 602 can also be a servo motor that can rotate forward and backward like the first rotary motor 205. The third rotary motor 602 drives the gear to rotate through the second reducer 603, and utilizes the meshing transmission of the gear and the spur rack 601 to drive the chassis 1012 to slide on the machine tool body 500. Of course, a screw drive method can also be used to drive the chassis 1012 to slide on the machine tool body 500. For example, a screw and a motor that drives the screw to rotate are provided on the machine tool, and a slider that cooperates with the screw is correspondingly provided at the bottom of the chassis 1012, thereby driving the chassis 1012 to move by rotating the screw. Those skilled in the art can make appropriate changes based on this, and there is no specific limitation.

[0092] The above is a detailed introduction to a laser cutting machine chuck combination provided by the present application. For those skilled in the art, according to the ideas of the embodiments of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A laser cutting machine chuck assembly, characterized in that: include: Rear chuck device, front chuck device, horizontal moving device and lifting device; The rear chuck device is provided with a through rear chuck cavity and can be movably mounted on the machine tool body of the cutting machine; The front end of the machine tool body is provided with a mounting cavity; The lifting device is installed in the installation cavity and the lifting end is connected to the front chuck device; The horizontal moving device is connected to the rear chuck device and is used to drive the rear chuck device to slide; The front chuck device is provided with a through front chuck cavity; The central axis of the front card cavity and the central axis of the rear card cavity are in the same vertical plane and are parallel; The lifting device is connected to the front chuck device and is used to drive the front chuck device to move up and down; The front chuck device includes a first bracket, a first hollow chuck mechanism and a first driving mechanism; The first bracket is movably installed in the installation cavity along the vertical direction; The first hollow chuck mechanism is rotatably mounted on the first bracket; The first driving mechanism is mounted on the first bracket and connected to the first hollow chuck mechanism, and is used to drive the first hollow chuck mechanism to rotate; The first bracket is a plate-shaped structure, comprising a main board and two connecting boards integrally connected to the main board; The first hollow chuck mechanism is mounted on the main board; The two connecting plates are symmetrically connected to the bottom of the main board; A first guide rail slider is vertically fixed on one side of the two connecting plates facing the rear chuck device; The rear chuck device includes a second bracket, a protective cover, a second hollow chuck mechanism and a second driving mechanism; The protective cover is provided on the second bracket; The second hollow chuck mechanism is rotatably mounted on the second bracket; The second driving mechanism is mounted on the second bracket and connected to the second hollow chuck mechanism, and is used to drive the second hollow chuck mechanism to rotate; When only the rear chuck device is used, the front chuck device is lowered into the machine tool body by controlling the lifting device.

2. A laser cutting machine chuck assembly according to claim 1, characterized in that: The first hollow chuck mechanism includes a first chuck body, a first linear cylinder and a roller clamp; The first chuck body is rotatably mounted on the first bracket; The first linear cylinder is installed in the first chuck body and is used to drive the roller clamping jaws to clamp; The roller clamp is installed in the first chuck body and connected to the movable end of the first linear cylinder. The front clamping cavity that passes through the first chuck body and the first bracket in sequence is formed in the middle of the roller clamp.

3. A laser cutting machine chuck assembly according to claim 2, characterized in that: The first driving mechanism includes a first rotating motor, a first driving pulley, a first driven pulley and a first belt; The first rotary motor is mounted on the first bracket and is located below the first chuck body, and the output shaft of the first rotary motor is connected to the first driving wheel through a first reducer; The first driven wheel is fixed on a rotating shaft that is rotatably matched with the first chuck body and the first bracket, and rotates synchronously with the first chuck body; The first driving wheel is connected to the first driven wheel through the first belt.

4. A laser cutting machine chuck assembly according to claim 3, characterized in that: Also included is an auxiliary clamping mechanism; The auxiliary clamping mechanism includes a second linear cylinder, a fixed clamping jaw and a movable clamping jaw; The second linear cylinder is horizontally mounted on the first bracket at the same side as the first driven wheel and is located above the first driven wheel; The connecting end of the movable clamp is connected to the movable end of the second linear cylinder; The connecting end of the fixed clamping jaw is connected to the fixed end of the second linear cylinder opposite to the movable end thereof; A clamping gap communicating with the front clamping cavity is formed between the clamping end of the movable clamping jaw and the clamping end of the fixed clamping jaw.

5. The laser cutting machine chuck assembly according to claim 1, characterized in that: The lifting device is specifically a lifting cylinder.

6. The laser cutting machine chuck assembly according to claim 1, characterized in that: The second bracket includes a base frame and a fixing frame; The fixing frame is installed on the top of the base frame; The second hollow chuck mechanism is mounted on the fixing frame; A second guide rail slider is symmetrically provided at the bottom of the chassis relative to the second hollow chuck mechanism.

7. The laser cutting machine chuck assembly according to claim 6, characterized in that: The second hollow chuck mechanism includes a second chuck body, a third linear cylinder and a tooth clamping jaw; The second chuck body is rotatably mounted on the fixing frame; The third linear cylinder is mounted on the second chuck body and is used to control the clamping and releasing of the clamping jaws; The clamping jaws are installed in the second chuck body and connected to the movable end of the third linear cylinder. The middle of the clamping jaws forms the rear clamping cavity which passes through the second chuck body, the fixing frame and the protective cover in sequence.

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