Laser pipe cutting machine, chuck and sliding rail device

Abstract

The utility model relates to the field of machine tools, in particular to a laser pipe cutting machine, a chuck and a sliding rail device. A sliding rail device comprises two rails which are fixedly arranged and a sliding block which is arranged between the two rails in a sliding mode. Linear sliding grooves are formed in the side walls, attached to each other, of the track and the sliding block correspondingly. The linear sliding groove in the track and the linear sliding groove in the sliding block are in butt joint to form a sliding cavity. A rolling assembly is embedded in the sliding cavity; the sliding block is slidably arranged relative to the rail based on the rolling assembly. According to the scheme, on one hand, a dovetail groove structure is omitted, forming is simpler, and the precision requirement is lower; on the other hand, a rolling mode is adopted to replace a sliding fit scheme, and the sliding block moves more smoothly relative to the rail.

Description

Technical Field

[0001] The utility model relates to the field of machine tools, in particular to a laser tube cutting machine, a chuck and a slide rail device. Background Art

[0002] Metal pipe is a commonly used metal profile, which is widely used in various fields of production and life. In order to facilitate material transportation, the raw material pipes for processing metal pipes are generally 2-6 meters long. Therefore, when used, not only detailed processing but also cutting is required. The existing technology uses laser pipe cutting machines to cut pipes using laser technology. It irradiates the surface of the pipe with a high-energy-density laser beam, causing the pipe to heat up rapidly and melt and vaporize, thereby achieving precise cutting of the pipe. The laser pipe cutting machine has the advantages of high cutting accuracy, smooth incision, fast cutting speed, and small heat-affected zone. It can process pipes of various shapes and sizes.

[0003] At present, all laser tube cutting machines are equipped with a chuck for clamping the tube and driving the tube to rotate. The chuck structure can refer to a laser tube cutting machine and its power head recorded in the announcement number "CN218517938U". It includes a power head body, in which a feed channel is formed; a positioning mechanism is installed on the output end of the power head body, and a plurality of mounting positions are formed circumferentially on the positioning mechanism, and a chuck assembly is provided on the mounting position, including a positioning block positioned on the positioning mechanism, and a clamping claw movably arranged on the positioning block; the plurality of clamping claws can respectively move relative to the plurality of positioning blocks in a direction perpendicular to the feed channel to clamp or move away from the workpiece. As described in the above-mentioned prior art, the chuck generally has a dovetail groove on the positioning block, and then a dovetail tenon is provided on the clamping claw, and sliding fit is achieved through a mortise and tenon structure. However, the above-mentioned mortise and tenon sliding structure has the problems of non-smooth sliding, high precision requirements, and great processing difficulty. Summary of the Invention

[0004] In order to solve the above problems, the purpose of the present invention is to provide a slide rail device. On the one hand, this solution abandons the dovetail groove structure, which makes the molding simpler and the precision requirements lower; on the other hand, it adopts a rolling method instead of a sliding fit solution, and the slider moves smoother relative to the track.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] A slide rail device comprises two fixed rails and a slider slidingly arranged between the two rails; the device is characterized in that linear slide grooves are respectively constructed on the side walls of the rails and the slider that fit together, and the linear slide grooves on the rails and the linear slide grooves on the slider are connected to form a sliding chamber; a rolling assembly is embedded in the sliding chamber; and the slider is slidably arranged relative to the rail based on the rolling assembly.

[0007] The present invention employs the aforementioned technical solution, which relates to a slide rail assembly comprising linear grooves on both the slider and the rails on either side. These grooves can be combined and docked to form a sliding chamber, within which a rolling assembly is provided to facilitate movement of the slider relative to the rails. Compared to the solution described in the background art, this solution, on the one hand, eliminates the dovetail groove structure, resulting in simpler molding and lower precision requirements; on the other hand, it utilizes a rolling mechanism instead of a sliding mechanism, resulting in smoother movement of the slider relative to the rails.

[0008] In a further embodiment, the linear slide is configured as an angular double-walled slide, comprising a first side wall and a second side wall; the sliding chamber formed when the rail and the slider are fitted together is a parallelogram; the rolling assembly comprises a first roller for fitting with the first side wall, and a second roller for fitting with the second side wall. Compared to the groove structure in the traditional solution, the linear slide in this solution is configured as an angular double-walled slide, comprising a first side wall and a second side wall, so that the first side wall and the second side wall are inevitably inclined relative to the fitting surface of the rail and the slider. The first roller and the second roller are further used to fit the first side wall and the second side wall respectively for rolling support, and the rolling support force can be dispersed in the width and thickness directions of the slider, which not only simplifies the structure but also makes the slider slide more smoothly; even when the slider is under force in the width and thickness directions, it can still slide smoothly.

[0009] In a specific embodiment, the rolling assembly includes a frame plate, and the first roller and the second roller are both rotatably arranged on the frame plate; the rolling surface of the first roller and the rolling surface of the second roller are at least partially exposed from the frame plate and are respectively used to fit the first side wall and the second side wall of the linear slide.

[0010] In a further embodiment, the first roller and the second roller are alternately arranged on the frame plate. In this embodiment, the alternating arrangement of the first roller and the second roller in different directions has various advantages, including achieving a gap-free fit, improving movement smoothness, enhancing load-bearing capacity, and improving measurement accuracy.

[0011] Achieving a gapless fit is achieved by alternating the first and second rollers in different directions, ensuring a gapless fit during the movement of the sliding assembly. This helps reduce friction and wear during movement, and improves movement accuracy and stability.

[0012] Improved motion smoothness is reflected in the alternating arrangement of the first and second rollers, which more effectively disperse shock and vibration during movement, resulting in smoother movement of the sliding assembly. This design helps reduce noise and vibration during movement, improving overall motion performance.

[0013] The enhanced load-bearing capacity is reflected in the fact that the alternating arrangement of the first and second rollers creates a more stable support structure, thereby enhancing the load-bearing capacity of the sliding assembly. This helps ensure that the sliding assembly maintains stable motion performance even when subjected to large loads.

[0014] Preferably, the rolling surface of the first roller partially exposed from a set of end surfaces of the frame plate mates with the first sidewalls of the track and slider, respectively; the rolling surface of the second roller partially exposed from another set of end surfaces of the frame plate mates with the second sidewalls of the track and slider, respectively. The "same set of end surfaces" in this solution refers to two opposing side walls. The above solution requires that the two side walls of the first roller exposed from the frame plate can mate with the first sidewalls of the track and slider, respectively. That is, the diameter of the first roller is greater than the width of that side of the frame plate. This allows a single set of first rollers to mate with both first sidewalls, which is both convenient and cost-effective. The solution for the second roller is similar and will not be elaborated on here.

[0015] In one embodiment, the frame plate is adapted to fit within the sliding chamber, i.e., has a parallelogram-shaped structure. The frame plate is formed with a first through-hole extending through one set of opposing side walls, and a second through-hole extending through another set of opposing side walls. The first roller is rotatably disposed within the first through-hole, with the rolling surface of the first roller partially exposed at the two side openings of the first through-hole. The second roller is rotatably disposed within the second through-hole, with the rolling surface of the second roller partially exposed at the two side openings of the second through-hole.

[0016] In another embodiment, the frame plate is a flat plate positioned between the track and the slider, with a first through-hole and a second through-hole extending through its upper and lower end surfaces. The first roller is tilted and embedded in the first through-hole, with the rolling surface of the first roller partially exposed at the two side openings of the first through-hole. The second roller is tilted and embedded in the second through-hole, with the rolling surface of the second roller partially exposed at the two side openings of the second through-hole. The axes of the first and second rollers are not parallel. Compared to the other embodiment, this solution has a simpler and more ingenious structure. The frame plate is a flat plate positioned between the track and the slider, effectively preventing the frame plate from tilting or misaligning. Rolling support in different directions can be achieved simply by embedding the first and second rollers in different directions on the flat plate. Furthermore, the thinness of the flat plate makes it easier to install, position, and maintain the first and second rollers.

[0017] Preferably, the first side wall and the second side wall are perpendicular to each other, and the sliding chamber formed when the track and the slider are attached is square or rectangular. In this way, the rolling support provided by the first roller and the second roller is more stable.

[0018] The second purpose of the present invention is to provide a chuck, comprising a disc body, and a plurality of claws slidably arranged on the disc body through a slide rail device; an axial hole for the workpiece to pass through is constructed at the center of the disc body, and a plurality of claws are regularly arranged along the circumference of the axial hole and can move in the radial direction; it is characterized in that: the slide rail device is the slide rail device described above; the claws are fixed on the slider of the slide rail device.

[0019] The third object of the present invention is to provide a laser tube cutting machine, characterized in that it includes the chuck described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of the slide rail device involved in the present invention.

[0021] Figure 2 This is a side schematic diagram of the slide rail device structure involved in the present invention.

[0022] Figure 3 The figure is an exploded view of the slide rail device structure involved in the present invention.

[0023] Figure 4 This is a schematic diagram of the first structure of the roller assembly.

[0024] Figure 5 This is a schematic diagram of the second structure of the roller assembly.

[0025] Figure 6 Schematic diagram of the second configuration of the roller assembly with some of the rollers hidden.

[0026] Figure 7 This is a schematic diagram of the chuck structure described in Example 2. DETAILED DESCRIPTION

[0027] The following describes in detail embodiments of the present invention, examples of which 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 explain the present invention, and should not be construed as limiting the present invention.

[0028] 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" and the like to indicate directions or positional relationships 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.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more, unless expressly limited otherwise.

[0030] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or 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 being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] Example 1:

[0033] like Figures 1 to 6As shown, this embodiment relates to a slide rail device, comprising two fixed rails 1, and a slider 2 slidingly arranged between the two rails 1. Linear grooves 10 are respectively constructed on the side walls of the rail 1 and the slider 2 that fit together, and the linear grooves 10 on the rail 1 and the linear grooves 10 on the slider 2 are docked to form a sliding chamber 100. A rolling assembly 3 is embedded in the sliding chamber 100. The slider 2 is slidably arranged relative to the rail 1 based on the rolling assembly 3. The slide rail device is constructed with linear grooves 10 on the slider 2 and the rails on both sides. The two linear grooves 10 can be combined and docked to form a sliding chamber 100, and a rolling assembly 3 is arranged therein to realize the movement of the slider 2 relative to the rail 1. Compared with the solution described in the background technology, this solution, on the one hand, abandons the dovetail groove structure, is simpler to form, and has lower precision requirements. On the other hand, the sliding fit solution is replaced by a rolling method, and the slider 2 moves more smoothly relative to the rail 1.

[0034] exist Figure 2 and 3 In the further embodiment shown, the linear slide 10 is configured as an angular double-walled slide, and the linear slide 10 includes a first side wall 101 and a second side wall 102. The sliding chamber 100 formed when the rail 1 and the slider 2 are fitted together is a parallelogram. The rolling assembly 3 includes a first roller 32 for fitting with the first side wall 101, and a second roller 33 for fitting with the second side wall 102. Compared with the groove structure in the traditional solution, the linear slide 10 in this solution is configured as an angular double-walled slide, including a first side wall 101 and a second side wall 102, so that the first side wall 101 and the second side wall 102 are inevitably inclined relative to the fitting surface of the slide rail and the slider 2. The first roller 32 and the second roller 33 are further used to fit the first side wall 101 and the second side wall 102 respectively for rolling support, and the rolling support force can be dispersed in the width direction and thickness direction of the slider 2, which not only simplifies the structure but also makes the slider 2 slide more smoothly. Even when the slider 2 is subjected to forces in the width and thickness directions, it can still slide smoothly. In the preferred embodiment, the first side wall 101 and the second side wall 102 are perpendicular, and the sliding chamber 100 formed when the track 1 and the slider 2 are attached is square or rectangular. This makes the rolling support provided by the first roller 32 and the second roller 33 more stable.

[0035] In a specific embodiment, the rolling assembly 3 includes a frame plate 31, and the first roller 32 and the second roller 33 are both rotatably arranged on the frame plate 31. The rolling surface of the first roller 32 and the rolling surface of the second roller 33 are at least partially exposed from the frame plate 31 and are used to fit the first side wall 101 and the second side wall 102 of the linear slide 10, respectively. In a further scheme, the first roller 32 and the second roller 33 are alternately arranged on the frame plate 31. In this scheme, the alternating arrangement of the first roller 32 and the second roller 33 in different directions has multiple advantages, including achieving a gapless fit, improving the smoothness of movement, enhancing the load-bearing capacity and improving the measurement accuracy. The realization of a gapless fit is reflected in that by alternating the first roller 32 and the second roller 33 in different directions, it can be ensured that the sliding assembly achieves a gapless fit during the movement. This helps to reduce friction and wear during the movement and improve the movement accuracy and stability.

[0036] Improved motion smoothness is reflected in the fact that the alternating arrangement of first rollers 32 and second rollers 33 can more effectively disperse shock and vibration during motion, thereby making the sliding assembly move more smoothly. This design helps reduce noise and vibration during motion and improves overall motion performance.

[0037] The enhanced load-bearing capacity is reflected in that the first rollers 32 and the second rollers 33, when arranged alternately, form a more stable support structure, thereby enhancing the load-bearing capacity of the sliding assembly. This helps ensure that the sliding assembly can maintain stable movement performance when subjected to large loads.

[0038] Figure 2 and 3 In the embodiment, the rolling surface of the first roller 32 is partially exposed from a set of end faces of the frame plate 31 and fits respectively with the first side walls 101 on the track 1 and the slider 2. The rolling surface of the second roller 33 is partially exposed from another set of end faces of the frame plate 31 and fits respectively with the second side walls 102 on the track 1 and the slider 2. The same set of end faces in the scheme here refers to the opposite side walls. The above scheme requires that the two side walls of the first roller 32 exposed from the frame plate 31 can fit respectively with the first side walls 101 of the track 1 and the slider 2, that is, the diameter of the first roller 32 is larger than the width of the frame plate 31 on that side. A set of first rollers 32 can fit with the two first side walls 101, which is not only convenient but also reduces costs. The scheme for the second roller 33 is similar and will not be repeated here.

[0039] exist Figure 4In one embodiment shown, the frame plate 31 is adapted to fit within the sliding chamber 100 and has a parallelogram-shaped structure. The frame plate 31 is formed with a first through-hole 311 extending through one set of opposing side walls, and a second through-hole 312 extending through another set of opposing side walls. The first roller 32 is rotatably disposed within the first through-hole 311, with the rolling surface of the first roller 32 partially exposed at the openings on either side of the first through-hole 311. The second roller 33 is rotatably disposed within the second through-hole 312, with the rolling surface of the second roller 33 partially exposed at the openings on either side of the second through-hole 312.

[0040] exist Figure 5 and 6 In another embodiment shown, the frame plate 31 is a flat plate positioned between the track 1 and the slider 2. The frame plate 31 is provided with a first through-hole 311 and a second through-hole 312 extending through its upper and lower ends. The first roller 32 is tilted and inserted into the first through-hole 311, with the rolling surface of the first roller 32 partially exposed at either side of the openings. The second roller 33 is tilted and inserted into the second through-hole 312, with the rolling surface of the second roller 33 partially exposed at either side of the openings. The axes of the first and second rollers 32, 33 are not parallel. Compared to the other embodiment, this solution offers a simpler and more ingenious structure. The flat plate 31, positioned between the track 1 and the slider 2, effectively prevents tilting and misalignment of the frame plate 31. Rolling support in different directions can be achieved simply by inserting the first and second rollers 32, 33 in different orientations into the flat plate. Furthermore, the thinness of the flat plate facilitates installation, positioning, and maintenance of the first and second rollers 32, 33.

[0041] Example 2:

[0042] like Figure 7 As shown, this embodiment provides a chuck comprising a chuck body 4 and a plurality of claws 41 slidably mounted on the chuck body 4 via a slide rail assembly. The chuck body 4 has an axial hole at its center for a workpiece to pass through. The claws 41 are regularly arranged along the circumference of the hole and are capable of radial movement. The chuck is characterized in that the slide rail assembly is the same as that described in Example 1. The claws 41 are fixed to the slider 2 of the slide rail assembly.

[0043] Example 3:

[0044] This embodiment provides a laser tube cutting machine, characterized in that it includes the chuck described in Example 2.

[0045] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0046] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A slide rail device, comprising two fixed rails (1) and a slider (2) slidably arranged between the two rails (1); characterized in that: A linear slide groove (10) is respectively constructed on the mutually fitting side walls of the track (1) and the slider (2); the linear slide groove (10) on the track (1) and the linear slide groove (10) on the slider (2) are connected to form a sliding chamber (100); a rolling assembly (3) is embedded in the sliding chamber (100); and the slider (2) is arranged to slide relative to the track (1) based on the rolling assembly (3).

2. A slide rail device according to claim 1, characterized in that: The linear slide (10) is configured as an angular double-walled slide, and the linear slide (10) includes a first side wall (101) and a second side wall (102); the sliding chamber (100) formed when the track (1) and the slider (2) are fitted together is a parallelogram; the rolling assembly (3) includes a first roller (32) for fitting with the first side wall (101), and a second roller (33) for fitting with the second side wall (102).

3. A slide rail device according to claim 2, characterized in that: The rolling assembly (3) includes a frame plate (31), and a first roller (32) and a second roller (33) are both rotatably arranged on the frame plate (31); the rolling surface of the first roller (32) and the rolling surface of the second roller (33) are at least partially exposed from the frame plate (31) and are respectively used to fit the first side wall (101) and the second side wall (102) of the linear slide (10).

4. A slide rail device according to claim 3, characterized in that: The first rollers (32) and the second rollers (33) are alternately arranged on the frame plate (31).

5. The slide rail device according to claim 3, characterized in that: A group of end faces of the rolling surface of the first roller (32) exposed from the frame plate (31) are respectively fitted with the first side walls (101) on the track (1) and the slider (2); another group of end faces of the rolling surface of the second roller (33) exposed from the frame plate (31) are respectively fitted with the second side walls (102) on the track (1) and the slider (2).

6. The slide rail device according to claim 5, characterized in that: The frame plate (31) is adapted to the sliding chamber (100), and a first through hole (311) penetrating one set of opposite side walls thereof and a second through hole (312) penetrating another set of opposite side walls thereof are constructed on the frame plate (31); the first roller (32) is rotatably disposed in the first through hole (311), and a rolling surface portion of the first roller (32) is exposed at two side openings of the first through hole (311); the second roller (33) is rotatably disposed in the second through hole (312), and a rolling surface portion of the second roller (33) is exposed at two side openings of the second through hole (312).

7. The slide rail device according to claim 5, characterized in that: The frame plate (31) is a flat plate located between the track (1) and the slider (2). The frame plate (31) is provided with a first through hole (311) and a second through hole (312) penetrating the upper and lower end surfaces thereof; the first roller (32) is obliquely embedded in the first through hole (311), and the rolling surface of the first roller (32) is partially exposed at the two side openings of the first through hole (311); the second roller (33) is obliquely embedded in the second through hole (312), and the rolling surface of the second roller (33) is partially exposed at the two side openings of the second through hole (312); the axes of the first roller (32) and the second roller (33) are not parallel.

8. The slide rail device according to claim 2, characterized in that: The first side wall (101) and the second side wall (102) are perpendicular to each other, and the sliding chamber (100) formed when the track (1) and the slider (2) are fitted together is square or rectangular.

9. A chuck, characterized in that: The invention comprises a disc body (4) and a plurality of claws (41) slidingly arranged on the disc body (4) via a slide rail device; an axial hole for a workpiece to pass through is constructed at the center of the disc body (4); the plurality of claws (41) are regularly arranged along the circumference of the axial hole and can move in a radial direction; it is characterized in that: the slide rail device is a slide rail device according to any one of claims 1 to 8; the claws (41) are fixed on a slider (2) of the slide rail device.

10. A laser tube cutting machine, characterized in that: The chuck according to claim 9 is included.

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