A three-axis double-gantry engraving machine

Abstract

This application provides a three-axis double-gantry engraving machine, relating to the technical field of engraving machines. It includes a machine base, an end clamping assembly, a gantry moving mechanism, a tool processing assembly, and an internal support mechanism. The end clamping assembly is mounted on the machine base and is used to clamp the end of a tubular workpiece and drive the workpiece to rotate around its own axis. The tool processing assembly is mounted on the gantry moving mechanism, which drives the tool processing assembly to move. The internal support mechanism includes an extension drive source, an internal support base tube, an internal support abutment assembly, and a push drive assembly. The internal support base tube is rotatably mounted on the extension drive source, which drives the internal support base tube to extend into the tubular workpiece. Multiple internal support abutment assemblies are arranged around the axis of the internal support base tube, and the push drive assembly is used to push the internal support abutment assembly against the inner wall of the tubular workpiece. This application facilitates providing continuous internal support force to the inner wall of the tubular workpiece during the processing of the rotating tubular workpiece.

Description

Technical Field

[0001] This application relates to the technical field of engraving machines, and in particular to a three-axis double gantry engraving machine. Background Technology

[0002] Gantry engraving machines are a type of general-purpose machinery widely used in the woodworking, advertising, craft, mold making, construction, printing and packaging, and decoration industries. They can process plate-shaped and tubular workpieces, which can be made of various materials such as metal, wood, stone, plastic, and glass.

[0003] Depending on the type of workpiece being carved, gantry engraving machines can be divided into sheet metal engraving machines and pipe engraving machines. Sheet metal engraving machines can perform surface relief carving on sheet metal, while pipe engraving machines can engrave on pipes, creating the desired shapes and patterns on the workpiece surface, such as creating uneven, tree-like textures.

[0004] The gantry engraving machine in related technologies includes a base, a gantry moving mechanism, and a tool processing assembly. The gantry moving mechanism is mounted on the base, and the tool processing assembly is mounted on the gantry moving mechanism. The gantry moving mechanism drives the tool processing assembly to move along three axes in three-dimensional space. The tool processing assembly has various types of tools and can perform drilling, cutting, and milling on the workpiece. By setting two sets of both the gantry moving mechanism and the tool processing assembly, a three-axis double gantry engraving machine is formed, thereby improving processing efficiency.

[0005] When drilling, cutting, and milling tubular workpieces, the sidewalls of the workpieces are subjected to certain forces, which can easily cause localized deformation. To address this, related technologies incorporate an internal support mechanism on the machine base. This mechanism includes an insertion drive source, a pushing drive source, and an internal support abutment. The pushing drive source is mounted on the insertion drive source, and the internal support abutment is mounted on the pushing drive source. The insertion drive source drives the pushing drive source to extend into the tubular workpiece, and the pushing drive source causes the internal support abutment to abut against the inner wall of the tubular workpiece, thereby providing support for the inner wall and facilitating drilling, localized milling, and cutting of the sidewalls.

[0006] However, when milling and cutting a long distance along the axis of the tubular workpiece on its sidewall, the workpiece needs to be rotated. In related technologies, the inner support abutment abuts against the inner wall of the workpiece. If the workpiece is rotated directly, the inner support abutment can easily scratch the inner wall. If the push drive source first disengages the inner support abutment from the inner wall, and then the workpiece rotates before abutting against the inner wall, it is difficult to provide continuous inner support force during the machining process. Therefore, the three-axis double-gantry engraving machine in related technologies needs improvement. Summary of the Invention

[0007] In order to facilitate the provision of continuous internal support force on the inner wall of the tube workpiece during the machining process, this application provides a three-axis double gantry engraving machine.

[0008] This application provides a three-axis double-gantry engraving machine, which adopts the following technical solution: A three-axis double-gantry engraving machine includes: Base; An end clamping assembly is disposed on the machine base and is used to clamp the end of the pipe workpiece and drive the pipe workpiece to rotate around its own axis. A gantry moving mechanism, wherein the gantry moving mechanism is mounted on the base; A tool processing assembly is mounted on the gantry moving mechanism, which drives the tool processing assembly to move, and the tool processing assembly processes the tubular workpiece. An internal support mechanism includes an insertion drive source, an internal support base tube, an internal support abutment assembly, and a push drive assembly. The internal support base tube is rotatably mounted on the insertion drive source, which drives the internal support base tube to extend into the tubular workpiece. The internal support abutment assembly is mounted on the internal support base tube, and multiple internal support abutment assemblies are arranged around the axis of the internal support base tube. The push drive assembly is used to push the internal support abutment assembly against the inner wall of the tubular workpiece.

[0009] By adopting the above technical solution, the end clamping assembly clamps the end of the tubular workpiece and drives the tubular workpiece to rotate around its own axis, facilitating multi-angle machining of the tubular workpiece. The gantry moving mechanism drives the tool processing assembly to move, enabling the tool processing assembly to process the tubular workpiece. The extending drive source drives the inner support base tube to extend into the tubular workpiece, pushing the inner support abutment assembly against the inner wall of the tubular workpiece. Since the inner support base tube is rotatably mounted on the extending drive source, the inner support abutment assembly rotates with the tubular workpiece when it rotates, providing continuous support force during machining of the rotating tubular workpiece and providing better support for the tubular workpiece.

[0010] Optionally, the inner support abutment assembly includes an extension rod and an inner support roller. The extension rod is slidably connected to the inner support base tube, and the inner support roller is rotatably connected to the extension rod. The inner support roller abuts against the inner wall of the tubular workpiece. When the extension drive source drives the inner support base tube to move, the inner support roller rolls along the axial direction of the tubular workpiece.

[0011] By adopting the above technical solution, the inner support roller is rotatably connected to the extension rod and abuts against the inner wall of the tubular workpiece. This allows the inner support roller to roll along the length of the tubular workpiece when the drive source moves the inner support base tube. This provides continuous support force when processing along the length of the tubular workpiece, thus providing better support for the tubular workpiece.

[0012] Optionally, the pushing drive assembly includes a pushing drive source and a pushing column; the pushing drive source is disposed on the inner support base tube, the pushing column is slidably connected to the inner support base tube, and the extending rod abuts against the side wall of the pushing column; the pushing drive source drives the pushing column to move, so that the pushing column pushes the extending rod to move, and the extending rod drives the inner support roller to abut against the inner wall of the tubular workpiece.

[0013] By adopting the above technical solution, the push drive source drives the push column to move, the push column drives the extension rod to move, and the extension rod drives the inner support roller to abut against the inner wall of the pipe workpiece, thereby realizing the support of the inner support roller on the inner wall of the pipe workpiece, thus providing a better support effect for the pipe workpiece.

[0014] Optionally, one end of the push column is configured as a pointed conical end, and the extending rod abuts against the side wall of the pointed conical end of the push column.

[0015] By adopting the above technical solution, the extension rod is slidably connected to the inner support base tube, and the extension rod abuts against the side wall of the pointed cone end of the push column. When the push column moves, the pointed cone end of the push column gradually pushes the extension rod to move, so as to adjust the moving distance of the extension rod.

[0016] Optionally, the push-drive assembly further includes a pressure sensor connected between the push-drive source and the push column.

[0017] By adopting the above technical solution, the pressure sensor is connected between the push drive source and the push column, which can detect the magnitude of the thrust, so that the inner support roller abuts against the inner wall of the pipe workpiece with appropriate force, thereby providing a better support effect for the pipe workpiece.

[0018] Optionally, a reset element is connected between the extending rod and the inner support base tube.

[0019] By adopting the above technical solution, when the pushing drive source moves the pushing column away from the extending rod, the reset component resets the extending rod, thereby restoring the inner support roller to its initial position, which facilitates the subsequent use of the inner support mechanism to support the tubular workpiece.

[0020] Optionally, the inner support base tube includes a base tube body and a reinforcing ring, the reinforcing ring being fixedly connected to the base tube body, and the protruding rod passing through the reinforcing ring.

[0021] By adopting the above technical solution, the extension rod is inserted into the reinforcing ring, which can enhance the structural strength of the inner support base tube, ensure the stable sliding of the extension rod, and improve the stability and reliability of the inner support mechanism.

[0022] Optionally, a plurality of the inner support rollers are disposed on one of the extended rods, and a clearance is provided between adjacent inner support rollers, the clearance accommodating the tool processing assembly passing through the tubular workpiece.

[0023] By adopting the above technical solution, a clearance is reserved between adjacent inner support rollers. This clearance can accommodate the cutting tool assembly that passes through the tubular workpiece, avoiding interference between the cutting tool assembly and the inner support rollers and ensuring smooth processing. For example, while providing support force, the clearance facilitates drilling and cutting operations on the tubular material.

[0024] Optionally, the tool processing assembly includes a drilling machine, a milling machine, and a cutting machine; the drilling machine, milling machine, and cutting machine are all mounted on the gantry moving mechanism.

[0025] By adopting the above technical solutions, the drilling machine can drill holes in the pipe workpiece, the engraving and milling machine can engrave and mill the pipe workpiece, and the cutting machine can cut the pipe workpiece. The whole machine can realize multiple processing methods for the pipe workpiece.

[0026] Optionally, the end clamping assembly includes a moving drive source, a support base, a chuck, and a rotating drive source; the moving drive source is disposed on the machine base, the support base is disposed on the moving drive source, and the moving drive source drives the support base to move; the chuck is rotatably connected to the support base, the chuck clamps the end of the tubular workpiece, and the rotating drive source drives the chuck to rotate.

[0027] By adopting the above technical solution, the moving drive source drives the support base to move, which in turn drives the chuck to move, bringing the chuck closer to the end of the pipe. The chuck then clamps the end of the pipe workpiece. The rotating drive source drives the chuck to rotate, allowing the pipe workpiece to rotate around its own axis, facilitating multi-directional machining of the pipe workpiece by the tool processing assembly.

[0028] In summary, this application includes at least one of the following beneficial effects: 1. The moving drive source moves the support base, bringing the chuck closer to the end of the tubular workpiece. The chuck clamps the end of the tubular workpiece. The rotating drive source rotates the chuck, which in turn rotates the tubular workpiece around its own axis. The inner support base tube is mounted on the extending drive source. The inner support abutment component abuts against the inner wall of the tubular workpiece and can rotate with the tubular workpiece, reducing the problem of the inner support abutment component scratching the inner wall of the tubular workpiece. It can provide continuous support force when the tubular workpiece is rotated for processing, ensuring the stability of the processing process. 2. The inner support roller is rotatably connected to the extension rod, which extends into the drive source to drive the inner support base tube to move, so that the inner support roller rolls along the axial direction of the tubular workpiece. This provides continuous support force when processing along the length of the tubular workpiece, effectively reducing the deformation of the tubular workpiece during processing, providing better support for the tubular workpiece, and improving processing accuracy. 3. The push drive source drives the push column to move, the pointed cone end of the push column pushes the extension rod to move, the extension rod drives the inner support roller to abut against the inner wall of the pipe workpiece, the pressure sensor can detect the magnitude of the thrust, so that the inner support roller abuts against the inner wall of the pipe workpiece with appropriate force, reducing the occurrence of local deformation of the side wall of the pipe workpiece and improving the processing quality. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the three-axis double gantry engraving machine according to Embodiment 1 of this application; Figure 2 This is a structural schematic diagram of the three-axis double gantry engraving machine from another perspective in Embodiment 1 of this application; Figure 3 This is a schematic diagram of the overall structure of the three-axis double-gantry engraving machine according to Embodiment 2 of this application; Figure 4 This is a schematic diagram of the structure of the base, end clamping assembly, inner support mechanism and support rollers in Embodiment 2 of this application; Figure 5 This is a schematic diagram of the end clamping assembly and inner support mechanism in Embodiment 2 of this application; Figure 6 This is a partial cross-sectional structural diagram of the internal support mechanism in Embodiment 2 of this application; Figure 7 This is a structural schematic diagram of the inner support base tube and the inner support abutment component in Embodiment 2 of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Base; 2. Gantry moving mechanism; 3. Tool processing assembly; 31. Drilling machine; 32. Engraving and milling machine; 33. Cutting machine; 4. End clamping assembly; 41. Moving drive source; 42. Support base; 43. Chuck; 44. Rotation drive source; 5. Internal support mechanism; 51. Extension drive source; 52. Internal support base tube; 521. Base tube body; 522. Reinforcing ring; 53. Internal support abutment assembly; 531. Extending rod; 532. Internal support roller; 5321. Clearance gap; 533. Reset component; 54. Push drive assembly; 541. Push drive source; 542. Push column; 543. Pressure sensor; 6. Support roller. Detailed Implementation

[0031] The following combination Figures 1 to 7 This application will be described in further detail.

[0032] Example 1:

[0033] Embodiment 1 of this application provides a three-axis double gantry engraving machine.

[0034] refer to Figure 1 and Figure 2 A three-axis double gantry engraving machine includes a base 1, a gantry moving mechanism 2, and a tool processing assembly 3. In this embodiment, the tool processing assembly 3 includes a milling machine 32 and a cutting machine 33. The body of the gantry moving mechanism 2 is fixedly connected to the base 1. The milling machine 32 and the cutting machine 33 are mounted on the moving end of the gantry moving mechanism 2. The gantry moving mechanism 2 can drive the milling machine 32 and the cutting machine 33 to move along three axes in three-dimensional space.

[0035] refer to Figure 1 and Figure 2 The gantry moving mechanism 2 and the tool processing assembly 3 are each provided in two sets, with the two sets of gantry moving mechanisms 2 corresponding one-to-one with the two sets of tool processing assemblies 3.

[0036] The implementation principle of a three-axis double gantry engraving machine in Embodiment 1 of this application is as follows: the workpiece is fixed on the machine base 1, the gantry moving mechanism 2 drives the tool processing assembly 3 to move to the predetermined position, the cutting machine 33 cuts the workpiece, and the engraving and milling machine 32 engraves and mills the workpiece.

[0037] Example 2:

[0038] Embodiment 2 of this application provides a three-axis double gantry engraving machine. The difference between Embodiment 2 and Embodiment 1 is that: refer to Figure 3 and Figure 4 The base 1 is provided with an end clamping assembly 4, which includes a motion drive source 41, a support base 42, a chuck 43, and a rotation drive source 44. In this embodiment, the motion drive source 41 is specifically a linear module, the chuck 43 is specifically an electric chuck, and the rotation drive source 44 is specifically a motor.

[0039] refer to Figure 4 and Figure 5 The body of the mobile drive source 41 is fixedly connected to the base 1, the support base 42 is fixedly connected to the moving end of the mobile drive source 41, and the chuck 43 is rotatably connected to the support base 42. The rotation drive source 44 is fixedly connected to the support base 42, and the rotation drive source 44 drives the chuck 43 to rotate.

[0040] refer to Figure 3 and Figure 4Multiple support rollers 6 are rotatably connected to the base 1, supporting the outer wall of the tubular workpiece. Two sets of end-clamping assemblies 4 are spaced apart and facing each other. After the tubular workpiece is placed on the support rollers 6, the motion drive source 41 drives the support base 42 to move, which in turn moves the chuck 43, bringing it close to the end of the tubular workpiece and clamping it. The rotation drive source 44 drives the chuck 43 to rotate, causing it to rotate the tubular workpiece, thus enabling the tool processing assembly 3 to perform multi-angle processing on the tubular workpiece.

[0041] refer to Figure 5 and Figure 6 The three-axis double gantry engraving machine also includes an internal support mechanism 5, which comprises an extension drive source 51, an internal support base tube 52, an internal support abutment assembly 53, and a push drive assembly 54. The extension drive source 51 specifically adopts a linear module, and its body is fixedly connected to the moving end of the movable drive source 41. The internal support base tube 52 includes a base tube body 521 and a reinforcing ring 522, with the base tube body 521 rotatably connected to the moving end of the extension drive source 51. The base tube body 521 passes through the support base 42 and the chuck 43 and extends into the interior of the tubular workpiece.

[0042] refer to Figure 5 and Figure 6 The push drive assembly 54 includes a push drive source 541, a push column 542, and a pressure sensor 543. The push drive source 541 is specifically an electric cylinder. The body of the push drive source 541 is fixedly connected to the base tube body 521. The moving end of the push drive source 541 is fixedly connected to the pressure sensor 543. The push column 542 is slidably connected to the inner wall of the base tube body 521. The pressure sensor 543 is fixedly connected to the push column 542. The push drive source 541 can push the push column 542 to move axially along the base tube body 521.

[0043] refer to Figure 6 and Figure 7The inner support abutment assembly 53 includes an extension rod 531, an inner support roller 532, and a reset member 533. A reinforcing ring 522 is sleeved on and fixedly connected to the base pipe body 521. The extension rod 531 passes through the base pipe body 521 and the reinforcing ring 522, and is slidably connected to both. The inner support roller 532 is rotatably connected to the end of the extension rod 531, and its axis is perpendicular to the axis of the base pipe body 521. The end of the push column 542 furthest from the pressure sensor 543 is a pointed cone, and the extension rod 531 abuts against the pointed cone of the push column 542. When the push drive source 541 pushes the push column 542 to move, the push column 542 pushes the extension rod 531 to move, causing the extension rod 531 to move the inner support roller 532 and abut against the inner wall of the pipe workpiece. Pressure sensor 543 detects the magnitude of the force, thereby controlling the push drive source 541 to provide an appropriate thrust, so that the inner support roller 532 abuts against the inner wall of the pipe workpiece with an appropriate force.

[0044] refer to Figure 6 and Figure 7 In this embodiment, the reset member 533 is specifically a spring, and the reset member 533 is fixedly connected to the extension rod 531 and the reinforcing ring 522 respectively. When the pushing drive source 541 drives the pushing column 542 away from the extension rod 531, the reset member 533 drives the extension rod 531 to reset, thereby causing the inner support roller 532 to disengage from the inner wall of the tubular workpiece and return to its initial position.

[0045] refer to Figure 6 and Figure 7 The inner support abutment component 53 has multiple circumferential arrays around the axis of the base pipe body 521. One push column 542 can simultaneously push multiple extension rods 531 to move, thereby causing multiple inner support rollers 532 to simultaneously abut against the inner wall of the pipe workpiece, providing uniform inner support force.

[0046] refer to Figure 3 and Figure 7 In this embodiment, the tool processing assembly 3 also includes a drill 31, which is mounted on the gantry moving mechanism 2 and is capable of drilling holes in the pipe workpiece. Two inner support rollers 532 are provided on an extension rod 531, with a clearance 5321 reserved between the two inner support rollers 532. When drilling or cutting the pipe workpiece is required, the tool of the drill 31 or the tool of the cutter 33 is aligned with the clearance 5321, and then the drill 31 drills a hole in the side wall of the pipe workpiece, or the cutter 33 cuts the side wall of the pipe workpiece. The clearance 5321 provides clearance space for the tool of the drill 31 or the tool of the cutter 33 to pass through the pipe workpiece.

[0047] refer to Figure 5 and Figure 6When it is necessary to mill or cut a long distance around the axis of the tubular workpiece on the side wall, the rotation drive source 44 drives the chuck 43 to rotate, which in turn drives the tubular workpiece to rotate. Multiple inner support abutment components 53 rotate with the tubular workpiece, so that when it is necessary to process the side wall of the tubular workpiece around the axis of the tubular workpiece, the inner support abutment components 53 provide continuous support.

[0048] refer to Figure 5 and Figure 6 When the tubular workpiece needs to be processed along its length, the extended drive source 51 moves the inner support base tube 52, causing the inner support base tube 52 to move the inner support abutment component 53. This causes the inner support roller 532 to roll along the length of the tubular workpiece on its inner wall, reducing scratches on the inner wall and providing continuous support along the length of the tubular workpiece. In this embodiment, combining the processing actions in the circumferential and length directions of the tubular workpiece allows the surface of the tubular workpiece to form the desired shape and pattern, such as creating an uneven, tree-like texture.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A three-axis double-gantry engraving machine, characterized in that, include: Base (1); End clamping assembly (4), the end clamping assembly (4) is disposed on the machine base (1), the end clamping assembly (4) is used to clamp the end of the pipe workpiece and drive the pipe workpiece to rotate around its own axis; A gantry moving mechanism (2) is mounted on the base (1); Tool processing assembly (3), the tool processing assembly (3) is disposed on the gantry moving mechanism (2), the gantry moving mechanism (2) drives the tool processing assembly (3) to move, the tool processing assembly (3) processes the pipe workpiece; The internal support mechanism (5) includes an extension drive source (51), an internal support base tube (52), an internal support abutment component (53), and a push drive component (54). The internal support base tube (52) is rotatably mounted on the extension drive source (51), and the extension drive source (51) drives the internal support base tube (52) to extend into the pipe workpiece. The internal support abutment component (53) is mounted on the internal support base tube (52), and multiple internal support abutment components (53) are arranged around the axis of the internal support base tube (52). The push drive component (54) is used to push the internal support abutment component (53) to abut against the inner wall of the pipe workpiece.

2. The three-axis double-gantry engraving machine according to claim 1, characterized in that: The inner support abutment assembly (53) includes an extension rod (531) and an inner support roller (532). The extension rod (531) is slidably connected to the inner support base tube (52), and the inner support roller (532) is rotatably connected to the extension rod (531). The inner support roller (532) abuts against the inner wall of the pipe workpiece. When the extension drive source (51) drives the inner support base tube (52) to move, the inner support roller (532) rolls along the axial direction of the pipe workpiece.

3. A three-axis double-gantry engraving machine according to claim 2, characterized in that: The push-drive assembly (54) includes a push-drive source (541) and a push column (542); the push-drive source (541) is disposed on the inner support base tube (52), the push column (542) is slidably connected to the inner support base tube (52), and the extension rod (531) abuts against the side wall of the push column (542); the push-drive source (541) drives the push column (542) to move, so that the push column (542) pushes the extension rod (531) to move, and the extension rod (531) drives the inner support roller (532) to abut against the inner wall of the pipe workpiece.

4. A three-axis double-gantry engraving machine according to claim 3, characterized in that: One end of the push column (542) is set as a pointed cone end, and the extension rod (531) abuts against the side wall of the pointed cone end of the push column (542).

5. A three-axis double-gantry engraving machine according to claim 3, characterized in that: The push drive assembly (54) also includes a pressure sensor (543) connected between the push drive source (541) and the push column (542).

6. A three-axis double-gantry engraving machine according to claim 3, characterized in that: A reset member (533) is connected between the extension rod (531) and the inner support base tube (52).

7. A three-axis double-gantry engraving machine according to claim 2, characterized in that: The inner support base tube (52) includes a base tube body (521) and a reinforcing ring (522). The reinforcing ring (522) is fixedly connected to the base tube body (521), and the extension rod (531) passes through the reinforcing ring (522).

8. A three-axis double-gantry engraving machine according to claim 2, characterized in that: Multiple inner support rollers (532) are disposed on one of the extension rods (531), and a clearance gap (5321) is reserved between adjacent inner support rollers (532) to accommodate the tool processing assembly (3) passing through the tubular workpiece.

9. A three-axis double-gantry engraving machine according to claim 1, characterized in that: The tool processing assembly (3) includes a drilling machine (31), a milling machine (32) and a cutting machine (33); the drilling machine (31), the milling machine (32) and the cutting machine (33) are all mounted on the gantry moving mechanism (2).

10. A three-axis double-gantry engraving machine according to claim 1, characterized in that: The end clamping assembly (4) includes a moving drive source (41), a support base (42), a chuck (43), and a rotating drive source (44); the moving drive source (41) is disposed on the machine base (1), the support base (42) is disposed on the moving drive source (41), and the moving drive source (41) drives the support base (42) to move; the chuck (43) is rotatably connected to the support base (42), the chuck (43) clamps the end of the pipe workpiece, and the rotating drive source (44) drives the chuck (43) to rotate.

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