A main clamping device of a rotary table laser cutting machine

Abstract

The application provides a rotary table laser cutting machine main chuck device, and belongs to the technical field of laser cutting. The device comprises a rack, a gas cylinder is installed on the left side of the rack via a support, a sliding plate is slidably connected to the top of the left side of the rack, a pair of linear guide rails I is installed on the top of the sliding plate, a track seat I is slidably connected to each linear guide rail I, and a coupling piece is arranged on each track seat I. The application solves the problems of the traditional main chuck, such as the three-jaw and four-jaw structure, the complex structure, the poor universality, the need to replace special chuck claws or a complete set of chucks according to different profiles such as circular pipes, H-shaped steel and channel steel, the high cost and long time of replacement, and the limited clamping range, which cannot meet the processing requirements of the circular pipes with a size of 50mm to 700mm and various special-shaped materials.

Description

Technical Field

[0001] This invention belongs to the field of laser cutting technology, specifically relating to a main card device for a rotary laser cutting machine. Background Technology

[0002] Laser cutting is a core processing method in modern manufacturing, widely used in aerospace, automobile manufacturing, and construction machinery. Among them, rotary laser cutting machines have become the mainstream equipment in the industry due to their high-efficiency tube processing capabilities. The core of its clamping lies in the main chuck system, which is responsible for the precise clamping and rotational positioning of the tube, directly determining the processing efficiency and equipment stability. Currently, the main chuck technology of mainstream rotary laser cutting machines is mainly divided into two categories: one is a multi-chuck synchronous drive system, which drives the tube to rotate around the B-axis through the coordinated work of multiple chucks. This solution has extremely high requirements for motion synchronization and is very expensive. The other is a single chuck drive system, in which a single main chuck drives the cutting head or tube to rotate. The structure is relatively simple, but it is difficult to achieve zero tail material, the tube loss is relatively large, and it is prone to bending deformation and end vibration in the processing of long tubes, affecting the processing accuracy.

[0003] Defects and shortcomings of existing technology: 1. Complex chuck structure and poor versatility: Traditional main chucks mostly adopt a three-jaw or four-jaw structure. For different cross-section profiles such as round pipes, H-beams, and channel steel, special jaws need to be designed or the entire chuck needs to be replaced. The equipment has low versatility, high changeover cost, and long time.

[0004] 2. Limited clamping range: The effective clamping range of most master chucks only covers small-diameter round pipes or single profiles, making it difficult to simultaneously meet the processing needs of 50mm small-diameter round pipes and 700mm large-diameter round pipes, as well as H-beams, channel steel and other special profiles.

[0005] 3. Insufficient clamping adjustment precision: Existing clamping chucks mostly rely on manual adjustment or fixed stroke, resulting in low adjustment precision and slow response. This makes it difficult to achieve precise centering and clamping of profiles with different cross-sectional dimensions, which can easily lead to cutting eccentricity. Therefore, a main card device for a rotary laser cutting machine is proposed. Summary of the Invention

[0006] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0007] Given the following technical problems in the existing technology: traditional main chucks are mostly three-jaw or four-jaw structures, which are complex and have poor versatility. They require the replacement of special jaws or the entire chuck according to different profiles such as round pipes, H-beams, and channel steel. The replacement cost is high and time-consuming, and the clamping range is limited, which cannot meet the processing needs of round pipes with diameters of 50mm to 700mm and various special profiles.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a main clamping device for a rotary laser cutting machine, comprising a frame, a cylinder mounted on the left side of the frame via a bracket, a slide plate slidably connected to the top left side of the frame, a pair of linear guide rails I mounted on the top of the slide plate, a track seat I slidably connected to each linear guide rail I, a connecting piece mounted on each track seat I, a second linear guide rail II mounted on the front left side of the frame, a base plate fixedly connected to each connecting piece, a splicing component mounted in each base plate, a connecting strip slidably connected to each splicing component, and two connecting strips on one base plate being connected together to a clamping jaw.

[0009] Furthermore, a slide rail three is installed on the top left side of the frame, a track seat three is installed on the bottom of the slide plate, the slide plate is connected to the slide rail three via the track seat three, and a track seat two is installed on the bottom of the connecting piece, the connecting piece is connected to the linear guide rail two via the track seat two.

[0010] Furthermore, the substrate includes an assembly cavity, which is pre-reserved on the substrate. The side of the assembly cavity has a clearance cavity, and four positioning holes are pre-reserved on the wall of the assembly cavity. A threaded interface located in the middle of the four positioning holes is pre-reserved on the wall of the assembly cavity.

[0011] Furthermore, the splicing assembly includes an outer shell, which includes a base shell. The side of the base shell closest to the substrate extends into the assembly cavity. Four positioning pins are installed on the side of the base shell closest to the substrate. The positioning pins match the positioning ports. The side of the base shell furthest from the substrate has a pre-reserved insertion port that matches the connecting strip. An assembly cavity is pre-reserved in the base shell. A movement port is pre-reserved on one side of the base shell. A receiving port is pre-reserved on the inner wall of the base shell facing the movement port. A slope is pre-reserved on both side walls of the opening of the base shell.

[0012] Furthermore, the splicing assembly includes a power unit, which includes a power seat that is slidably installed in the base shell. An external protrusion is fixedly connected to one side of the power seat that protrudes from the movement opening, and a clearance opening is reserved in the middle of the power seat.

[0013] Furthermore, the splicing assembly includes a limiting part, which includes positioning strips installed at the four corners of the assembly cavity. The same limiting piece is installed on the four positioning strips. Fastener 1 is installed at the four corners of the limiting piece. Fastener 1 passes through the limiting piece and is connected to the positioning strip. Slope 2 is installed on both sides of the limiting piece. Fastener 2 is installed in the middle of the limiting piece. Fastener 2 passes through the limiting piece and the base shell and is connected to the threaded interface of the assembly cavity.

[0014] Furthermore, the splicing assembly includes a clamping part, which includes a clamping platform slidably mounted between a slope one on the base shell and a slope two on the limiting piece. The end of the clamping platform is provided with a clamping protrusion, and an active unit is connected to the clamping part.

[0015] Furthermore, the active unit includes two guide slots reserved on both sides of the power seat. Each guide slot is slidably connected to a guide rod. The two guide rods on one side are fixedly connected at one end to the corresponding clamping platform. Two limiting pins are fixedly connected to the sides of the two clamping platforms that are close to each other. An elastic element is fixedly connected between the two opposing limiting pins.

[0016] Furthermore, the active unit also includes a guide groove 2 reserved on the clamping platform. Multiple guide grooves 2 are reserved and mirror-mounted on the two clamping platforms. Guide rods 2 are slidably connected in the clamping platform. The guide rods 2 are all fixedly connected to the power base. A pair of elastic elements 2 are fixedly connected to the power base. Each elastic element 2 extends into a corresponding receiving opening.

[0017] Furthermore, the connecting strip has two pre-reserved cavities. After the connecting strip is embedded in the base shell, the clamping platform extends into the cavities and abuts against the walls of the cavities.

[0018] The beneficial effects of this invention are as follows: 1. This invention features a simple and reliable structure, abandoning the complex synchronous drive structure of traditional multi-chucks and adopting a single pair of gripper assemblies, consisting only of cylinders and guide rails. It has fewer parts, a lower failure rate, and is easy to maintain. The equipment has strong clamping versatility and can clamp round pipes from 50mm to 700mm. It is suitable for H-beams, channel steel, and other irregular profiles. It can process multiple profiles without changing the grippers, resulting in high equipment utilization. Relying on the linkage structure of linear guide rails and sliding plates, the gripper centering accuracy is high, which can effectively eliminate defects such as cutting eccentricity and end face tilting. The cutting and processing quality is high, making it suitable for high-precision pipe processing scenarios.

[0019] 2. This invention achieves simple clamping and release of the connecting strip through the cooperation of the clamping part of the splicing component and the active unit. Relying on the linkage of the power seat, guide groove one, guide rod one and elastic element one, combined with the sliding channel formed by slope one and slope two, the clamping table and the connecting strip cavity are controlled to engage and disengage. The clamping claw is assembled and connected to the splicing component through the connecting strip. It is only necessary to control the power seat to pull the clamping table to release the connecting strip, so that the connecting strip can be pulled out from the base shell plug inlet, completing the efficient disassembly and replacement of the clamping claw. Moreover, the clamping claw and the connecting strip are connected by fasteners, which facilitates disassembly and maintenance.

[0020] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the splicing component structure according to an embodiment of the present invention; Figure 3 Embodiments of the present invention Figure 2 Another perspective structural diagram; Figure 4 This is a schematic diagram of the shell removal structure according to an embodiment of the present invention; Figure 5 Embodiments of the present invention Figure 2 Schematic diagram of the structure without connecting strips; Figure 6 Embodiments of the present invention Figure 5 Schematic diagram of the structure after removing the limiting plate; Figure 7 This is a schematic diagram of the elastic element structure in the first embodiment of the present invention; Figure 8 This is a schematic diagram of the second embodiment of the elastic element of the present invention; Figure 9 This is a schematic diagram of the limiting piece structure according to an embodiment of the present invention; Figure 10 This is a schematic diagram of a slope structure according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the clamping platform and card cavity structure according to an embodiment of the present invention; Reference numerals: 100, frame; 200, cylinder; 300, slide plate; 400, linear guide rail one; 500, track seat one; 600, connecting plate; 700, linear guide rail two; 800, substrate; 801, assembly cavity; 802, clearance cavity; 91, base shell; 92, plug inlet; 93, movement port; 94, locating pin; 95, assembly cavity; 96, receiving port; 97, slope one; 1000, connecting strip; 1001, locking cavity; 110 1. Positioning strip; 1102. Limiting piece; 1103. Fastener one; 1104. Slope two; 1105. Fastener two; 1201. Power seat; 1202. External protrusion; 1301. Guide groove one; 1302. Guide rod one; 1303. Clamping platform; 1304. Clamping protrusion wall; 1305. Limiting pin; 1306. Elastic element one; 1307. Guide groove two; 1308. Guide rod two; 1309. Elastic element two; 1400. Gripper. Detailed Implementation

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0025] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0026] First Embodiment Reference Figures 1-11This invention provides a main clamping device for a rotary laser cutting machine, comprising a frame 100. A cylinder 200 is mounted on the left side of the frame 100 via a bracket. A slide plate 300 is slidably connected to the top left side of the frame 100. A pair of linear guide rails 400 are mounted on the top of the slide plate 300. Each linear guide rail 400 is slidably connected to a track seat 500. Each track seat 500 is equipped with a connecting piece 600. A second linear guide rail 700 is mounted on the front left side of the frame 100. Each connecting piece 600 is fixedly connected to a base plate 800. Each base plate 800 contains a splicing assembly, and a connecting strip 100 is slidably connected to each splicing assembly. 0. Two connecting strips 1000 located on a substrate 800 are connected to a gripper 1400. The cylinder 200 serves as the active power source. When its piston rod extends or retracts, it pulls the slide plate 300 to reciprocate along the top of the frame 100. When the slide plate 300 slides, it pulls the connecting piece 600 to close or separate via the linear guide rail 1 400, the track seat 1 500, and the linear guide rail 2 700. The connecting piece 600 pulls the substrate 800 and the splicing assembly installed on it to move as a whole. The splicing assembly pulls the gripper 1400 to open and close synchronously via the clamping connecting strip 1000, realizing the clamping and releasing action of the workpiece on the turntable.

[0027] A slide rail three is installed on the top left side of the frame 100, and a track seat three is installed on the bottom of the slide plate 300. The slide plate 300 is connected to the slide rail three via the track seat three. A track seat two is installed on the bottom of the connecting piece 600. The connecting piece 600 is connected to the linear guide rail two 700 via the track seat two. The slide plate 300 cooperates with the slide rail three on the frame 100 via the track seat three at the bottom to form a first-level sliding pair, which bears the load of the slide plate 300 and all the upper components and ensures the straightness of its sliding. The connecting piece 600 cooperates with the linear guide rail two 700 via the track seat two at the bottom to form a second-level sliding pair, which restricts the movement of the connecting piece 600 a second time, ensuring that the connecting piece 600 can close and unfold.

[0028] The substrate 800 includes an assembly cavity 801, which is pre-installed on the substrate 800. A clearance cavity 802 is reserved on the side of the assembly cavity 801. Four positioning holes are reserved on the wall of the assembly cavity 801. A threaded interface is reserved in the middle of the four positioning holes on the wall of the assembly cavity 801. The substrate 800 serves as the assembly carrier for the splicing assembly. The assembly cavity 801 inside the substrate 800 is used to accommodate and restrict the main body of the splicing assembly. The clearance cavity 802 provides movement space for the protruding protrusion 1202 on the splicing assembly. The four positioning holes cooperate with the positioning pins of the splicing assembly to realize the positioning of the splicing assembly on the substrate 800, ensuring the accurate assembly of the splicing assembly. The threaded interface in the middle is used to securely lock the splicing assembly on the substrate 800 with fasteners to prevent the splicing assembly from shaking or shifting during operation.

[0029] The splicing assembly includes an outer shell, which includes a base shell 91. The side of the base shell 91 closest to the substrate 800 extends into the assembly cavity 801. Four positioning pins 94 are installed on the side of the base shell 91 closest to the substrate 800, and the positioning pins 94 match the positioning ports. The side of the base shell 91 furthest from the substrate 800 has a pre-reserved insertion port 92 that matches the connecting strip 1000. An assembly cavity 95 is pre-reserved in the base shell 91. A movement port 93 is pre-reserved on one side of the base shell 91. A receiving port 96 is pre-reserved on the inner wall of the base shell 91 facing the movement port 93. The two side walls of the opening of the base shell 91 are pre-reserved with slopes. 97. The base shell 91 serves as the outer shell of the splicing assembly. One side of it extends into the assembly cavity 801 of the substrate 800. It is radially positioned by four positioning pins 94 that are embedded in the positioning port of the substrate 800. The insertion port 92 provides an insertion channel and displacement path for the connecting strip 1000. The assembly cavity 95 inside the base shell 91 is used to accommodate internal components such as the power unit, limiting unit, and clamping unit of the splicing assembly. The movement port 93 allows the power seat 1201 of the power unit to protrude out of the base shell 91. The receiving port 96 is used to accommodate and guide the movement of the elastic element 2. The slope 97 provides a constraint path for the sliding of the clamping table.

[0030] The splicing assembly includes a power unit, which includes a power seat 1201 that is slidably installed in the base shell 91. An external protrusion 1202 is fixedly connected to one side of the power seat 1201 that protrudes from the movement port 93. A clearance opening is reserved in the middle of the power seat 1201. The external protrusion 1202 can be manually controlled by the operator to move the power seat 1201. The external protrusion 1202 pulls the power seat 1201 to slide in a straight line in the assembly cavity 95 of the base shell 91. The clearance opening in the middle of the power seat 1201 is used to avoid the fastener two of the limiting part to prevent the power seat 1201 from interfering with the fastener two when sliding.

[0031] The splicing assembly includes a limiting part, which includes positioning strips 1101 installed at the four corners of the assembly cavity 95. The same limiting piece 1102 is installed on each of the four positioning strips 1101. Fasteners 1103 are installed at the four corners of the limiting piece 1102, passing through the limiting piece 1102 and connecting to the positioning strips 1101. Sloping surfaces 1104 are installed on both sides of the limiting piece 1102. Fastener 1105 is installed in the middle of the limiting piece 1102, passing through the limiting piece 1102 and the base shell 91 and connecting to the threaded interface of the assembly cavity 801. The four positioning strips 1101... 1. The four corners of the mounting cavity 95 of the base shell 91 are fixed to provide the assembly reference and support for the limiting piece 1102. The limiting piece 1102 is constrained to the positioning strip 1101 by fastener 1103. The slope 2 1104 on both sides of the limiting piece 1102 is installed face to face with the slope 1 97 on the base shell 91, forming the embedded sliding channel of the clamping table. The fastener 2 1105 passes through the limiting piece 1102 and the base shell 91 at the same time, and is finally screwed into the thread interface of the mounting cavity 801 of the base plate 800, which tightly constrains the entire splicing assembly to the base plate 800, while ensuring that the position of the limiting piece 1102 and the base shell 91 remains fixed.

[0032] The splicing assembly includes a clamping part, which includes a clamping platform 1303 slidably mounted between the first slope 97 of the base shell 91 and the second slope 1104 of the limiting piece 1102. A clamping protrusion 1304 is mounted at the end of the clamping platform 1303. An active unit is connected to the clamping part. The clamping platform 1303 is confined within the embedded channel formed by the first slope 97 and the second slope 1104, allowing it to slide. When the active unit pulls the clamping platform 1303 to move further into the base shell 91, the two... Under the constraint of the slope installed face to face, the two clamping platforms 1303 will move towards the middle at the same time, that is, towards the base shell 91, so that the clamping protrusion 1304 is away from the cavity of the connecting strip 1000 and does not come into close contact with the cavity wall, thereby releasing the connecting strip 1000. When the clamping platform 1303 returns to the initial position, that is, moves outward from the base shell 91, the clamping platform 1303 re-embeds into the cavity 1001 and can constrain the connecting strip 1000 again.

[0033] The active unit includes two guide slots 1301 pre-reserved on both sides of the power base 1201. Each guide slot 1301 has a guide rod 1302 slidably connected to it. One end of each of the two guide rods 1302 on one side is fixedly connected to a corresponding clamping platform 1303. Two limiting pins 1305 are fixedly connected to the sides of the two clamping platforms 1303 that are close to each other. An elastic element 1306 is fixedly connected between the two opposing limiting pins 1305. When the power base 1201 slides inward along the base shell 91... The guide grooves 1301 on both sides drive the guide rods 1302 to move, thereby pulling a pair of clamping platforms 1303 to move synchronously into the base shell 91, realizing the separation of the clamping platforms 1303 from the clamping cavity 1001. When the power seat 1201 slides outward along the base shell 91, the thrust of the guide grooves 1301 on the guide rods 1302 disappears. At this time, the compressed elastic element 1306 recovers, allowing the two clamping platforms 1303 to separate to both sides and move towards the clamping cavity 1001 to achieve clamping. The connecting strip 1000 has two pre-drilled cavities 1001. After the connecting strip 1000 is embedded in the base shell 91, the clamping platform 1303 extends into the cavities 1001 and abuts against the walls of the cavities 1001. The connecting strip 1000 serves as a connecting component between the gripper 1400 and the splicing assembly. One side of the connecting strip 1000 is fixedly connected to the gripper 1400, and the other side is embedded in the insertion port 92 of the base shell 91. When the clamping platform 1303 moves to both sides, the clamping protrusions 1304 at the front end of the clamping platform 1303 each extend into the connecting strip 1000. In the two clamping cavities 1001, the connecting strip 1000 is tightly bound to the base shell 91 by the friction and interlocking action between the clamping protrusion 1304 and the wall of the clamping cavity 1001, thereby achieving a rigid connection between the clamp 1400 and the substrate 800. When the clamp 1400 needs to be replaced, the clamping table 1303 only needs to be released to pull the connecting strip 1000 out of the plug inlet 92, thus completing the quick replacement of the clamp 1400. Moreover, the clamp 1400 can be connected to the connecting strip 1000 via fasteners, which is convenient for disassembly.

[0034] Second Embodiment Compared with the first embodiment, the active unit in this embodiment further includes a second guide groove 1307 reserved on the clamping platform 1303. Multiple guide grooves 1307 are reserved and mirror-mounted on the two clamping platforms 1303. Guide rods 1308 are slidably connected to the clamping platform 1303. All guide rods 1308 are fixedly connected to the power base 1201. A pair of elastic elements 1309 are fixedly connected to the power base 1201. Each elastic element 1309 extends into a corresponding receiving opening 96. The guide rods 1308 are fixed to the power base 1201 and embedded in the guide grooves 1307 of the clamping platform 1303. One side of each elastic element 1309 is fixedly connected to the power base 1201. On the other side of the power seat 1201, it extends into the receiving port 96 of the base shell 91. During the displacement of the power seat 1201 into the base shell 91, the elastic element 1309 tightens and stores elastic potential energy. When the external force is removed, the elastic force of the elastic element 1309 will drive the power seat 1201 to return to its original position. When the power seat 1201 moves inward, it will drive the clamping platform 1303 to move into the base shell 91, releasing the connecting strip 1000. Under the restoring effect of the elastic element 1309, the power seat 1201 returns to its initial position and will drive the clamping platform 1303 to move towards the position of the clamping cavity 1001, thereby clamping the connecting strip 1000.

[0035] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A main clamp device for a rotary table laser cutting machine, comprising a frame (100), characterized in that, A cylinder (200) is mounted on the left side of the frame (100) via a bracket. A slide plate (300) is slidably connected to the top left side of the frame (100). A pair of linear guide rails (400) are mounted on the top of the slide plate (300). A track seat (500) is slidably connected to each linear guide rail (400). A connecting piece (600) is installed on each track seat (500). A linear guide rail (700) is mounted on the front left side of the frame (100). A base plate (800) is fixed to each connecting piece (600). A splicing assembly is installed in each base plate (800). A connecting strip (1000) is slidably connected to each splicing assembly. Two connecting strips (1000) on a base plate (800) are connected to a clamp (1400).

2. The main clamping device for a rotary laser cutting machine according to claim 1, characterized in that: The top left side of the frame (100) is equipped with a slide rail three, the bottom of the slide plate (300) is equipped with a track seat three, the slide plate (300) is connected to the slide rail three via the track seat three, the bottom of the connecting piece (600) is equipped with a track seat two, and the connecting piece (600) is connected to the linear guide rail two (700) via the track seat two.

3. The main clamping device for a rotary laser cutting machine according to claim 2, characterized in that: The substrate (800) includes an assembly cavity (801), which is reserved on the substrate (800). A clearance cavity (802) is reserved on the side of the assembly cavity (801). Four positioning holes are reserved on the wall of the assembly cavity (801). A threaded interface located in the middle of the four positioning holes is reserved on the wall of the assembly cavity (801).

4. The main clamping device for a rotary laser cutting machine according to claim 3, characterized in that: The splicing assembly includes an outer shell, which includes a base shell (91). The side of the base shell (91) close to the substrate (800) extends into the assembly cavity (801). Four positioning pins (94) are installed on the side of the base shell (91) close to the substrate (800). The positioning pins (94) match the positioning ports. The side of the base shell (91) away from the substrate (800) has a reserved insertion port (92) that matches the connecting strip (1000). An assembly cavity (95) is reserved in the base shell (91). A movement port (93) is reserved on one side of the base shell (91). A receiving port (96) is reserved on the inner wall of the base shell (91) facing the movement port (93). A slope surface (97) is reserved on both sides of the opening of the base shell (91).

5. The main clamping device for a rotary laser cutting machine according to claim 4, characterized in that: The splicing assembly includes a power unit, which includes a power seat (1201) that is slidably installed in the base shell (91). An external protrusion (1202) is fixedly connected to one side of the power seat (1201) that protrudes from the movement port (93). An avoidance opening is reserved in the middle of the power seat (1201).

6. The main clamping device for a rotary laser cutting machine according to claim 5, characterized in that: The splicing assembly includes a limiting part, which includes positioning strips (1101) installed at the four corners of the assembly cavity (95). The same limiting piece (1102) is installed on the four positioning strips (1101). Fasteners (1103) are installed at the four corners of the limiting piece (1102). Fasteners (1103) pass through the limiting piece (1102) and are connected to the positioning strips (1101). Slopes (1104) are installed on both sides of the limiting piece (1102). Fasteners (1105) are installed in the middle of the limiting piece (1102). Fasteners (1105) pass through the limiting piece (1102) and the base shell (91) and are connected to the threaded interface of the assembly cavity (801).

7. The main clamping device for a rotary laser cutting machine according to claim 6, characterized in that: The splicing assembly includes a clamping part, which includes a clamping platform (1303) that is slidably installed between a slope one (97) of the base shell (91) and a slope two (1104) of the limiting piece (1102). A clamping protrusion (1304) is installed at the end of the clamping platform (1303), and an active unit is connected to the clamping part.

8. The main clamping device for a rotary laser cutting machine according to claim 7, characterized in that: The active unit includes two guide slots (1301) reserved on both sides of the power seat (1201). Each guide slot (1301) is slidably connected to a guide rod (1302). One end of the two guide rods (1302) on one side is fixedly connected to the corresponding clamping platform (1303). Two limiting pins (1305) are fixedly connected to the sides of the two clamping platforms (1303) that are close to each other. An elastic element (1306) is fixedly connected between the two opposing limiting pins (1305).

9. The main clamping device for a rotary laser cutting machine according to claim 8, characterized in that: The active unit also includes a second guide groove (1307) reserved on the clamping platform (1303). Multiple second guide grooves (1307) are reserved and mirror-mounted on the two clamping platforms (1303). A second guide rod (1308) is slidably connected in the clamping platform (1303). The second guide rod (1308) is fixedly connected to the power seat (1201). A pair of elastic elements (1309) are fixedly connected to the power seat (1201). Each elastic element (1309) extends into the corresponding receiving port (96).

10. The main clamping device for a rotary laser cutting machine according to claim 9, characterized in that: The connecting strip (1000) has two pre-reserved cavities (1001). After the connecting strip (1000) is embedded in the base shell (91), the clamping platform (1303) extends into the cavities (1001) and abuts against the wall of the cavities (1001).

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