A chip-proof machine tool specifically designed for thin-walled cylindrical parts

Abstract

This invention discloses a chip-proof machine tool specifically designed for thin-walled cylindrical parts, comprising a bed; a spindle box, mounted on the bed for driving the tool to rotate; a tool feed mechanism, mounted on the bed for driving the tool to feed axially and radially; and a clamping system for clamping the thin-walled cylindrical parts. The clamping system includes a sloping table base mounted on the bed. This invention, through the synergistic design of an inverted V-shaped sloping surface and a concealed piping layout, on the one hand, utilizes the inclined surface of the sloping table base to guide chips to automatically slide down to the chip conveyor, avoiding chip accumulation on the base surface; on the other hand, it integrates all the air and water circuits required by the clamping system into the internal structural components, eliminating direct contact between external piping and chips / cutting fluid. This fundamentally solves the technical problems of chip accumulation and pipe wear caused by chip entanglement in traditional machine tools, achieving automated continuous operation of the machining process and long-term stable maintenance of the equipment.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and in particular to a chip-resistant machine tool specifically designed for thin-walled cylindrical parts. Background Technology

[0002] Thin-walled cylindrical parts are prone to deformation during processing due to their thin walls and poor rigidity. Special fixtures are usually required to hold the outer circle of the parts and process both ends simultaneously to ensure processing accuracy and efficiency. The processing of such parts requires high precision, stability and automation of machine tools.

[0003] However, the existing machine tool fixture base adopts a flat design, and the air and water circuits required during the machining process are transmitted through external water and air pipes. The chips generated during the machining process tend to accumulate on the machine tool fixture base and become entangled on the air and water pipes, which affects the implementation of automation in the machining process and is prone to pipeline corrosion, causing pipeline aging and other safety hazards. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings mentioned above by providing a chip-proof machine tool specifically designed for thin-walled cylindrical parts, which effectively guides chips to slide off, integrates the air and water circuits within the fixture system, and integrates the oil mist separation channel.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a chip-resistant machine tool for thin-walled cylindrical parts, comprising a bed; a spindle box, disposed on the bed, for driving the tool to rotate; a tool feed mechanism, disposed on the bed, for driving the tool to feed axially and radially; and a clamping system for clamping the thin-walled cylindrical parts, the clamping system comprising: An inclined table base is provided on the bed, and the top of the inclined table base is provided with an inverted V-shaped inclined surface to guide the chips generated during the machining process to slide off. An L-shaped frame is set on the inclined workbench base. The L-shaped frame has a hollow wiring channel inside to accommodate cylinder pipelines and electrical component wiring. The workpiece lower base is set on the inclined worktable base and is used to support the thin-walled cylindrical part; The upper base of the workpiece is movably disposed above the lower base of the workpiece. When the upper base of the workpiece and the lower base of the workpiece are closed, they form a clamping cavity for circumferentially clamping the thin-walled cylindrical part. A telescopic cylinder is fixed on the L-shaped frame. The piston rod end of the telescopic cylinder is connected to the upper base of the workpiece and is used to drive the upper base of the workpiece to move up and down to clamp or release the workpiece. The cylinder guide rod is fixed to the L-shaped frame, and its movable end is connected to the base on the workpiece, which is used to guide the lifting and lowering movement of the base on the workpiece. The fixture system integrates an interconnected air passage network and a water passage network. The air passage network and the water passage network are distributed inside at least two of the inclined table base, the L-shaped frame, the lower workpiece base, the upper workpiece base, and the cylinder guide rod, forming a concealed pipeline layout.

[0006] Furthermore, the inclined angle of the inclined workbench base is 30°.

[0007] Furthermore, the upper part of the L-shaped frame has a groove-shaped structure, and the front half of the suspended part is provided with a through hole for the telescopic cylinder and the cylinder guide rod to pass through. The back of the L-shaped frame is provided with a maintenance port that communicates with the hollow wiring channel, and the maintenance port is provided with a removable cover plate.

[0008] Furthermore, the cover plate on the back of the L-shaped frame is made of transparent fiberglass board, which is used for observation and inspection of internal pipelines and components.

[0009] Furthermore, the clamping system also includes a rotary clamping mechanism and a positioning mechanism; The rotary clamping mechanism includes a rotary clamping cylinder and a pulling plate. The rotary clamping cylinder is mounted on the L-shaped frame, and the pulling plate is connected to the output end of the rotary clamping cylinder. It is used to rotate and push the workpiece to move axially to a designated position after the workpiece is placed. The positioning mechanism includes a positioning cylinder and a positioning stop block. The positioning cylinder is mounted on the L-shaped frame, and the positioning stop block is connected to the output end of the positioning cylinder. It is used to extend to a designated position to position the workpiece when it is being loaded.

[0010] Furthermore, the cross-sections of the lower base and the upper base of the workpiece are semi-circular arc-shaped, and copper tiles are installed inside them. The copper tiles are provided with at least one airtightness detection hole and at least one water spray hole. The airtightness detection hole is connected to the air passage network, and the water spray hole is connected to the water passage network.

[0011] Furthermore, it also includes an outer protective cover for the machine tool, the outer protective cover for the machine tool having an oil mist separation channel inside, one end of the oil mist separation channel being connected to the filter port of the machine tool processing area, and the other end being connected to an oil mist separator, so that the oil mist generated during the processing enters the oil mist separator through the oil mist separation channel.

[0012] Furthermore, the workpiece base is provided with a chip-blocking header to prevent chips from splashing upwards to the outside of the processing area.

[0013] The beneficial effects of this invention are reflected in: This invention, through the synergistic design of an inverted V-shaped ramp and a concealed pipeline layout, on the one hand, utilizes the inclined surface of the ramp-shaped worktable base to guide the chips to automatically slide down to the chip conveyor, avoiding chip accumulation on the base surface; on the other hand, it conceals and integrates all the air and water lines required by the fixture system inside each structural component, eliminating direct contact between external pipelines and chips and cutting fluid, fundamentally solving the technical problems of chip accumulation and pipeline chip entanglement and wear in traditional machine tools, and realizing automated continuous operation of the machining process and long-term stable maintenance of the equipment. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the clamping system of the present invention; Figure 3 for Figure 2 A magnified view of the portion at point A; Figure 4 This is a schematic diagram showing the position of the positioning mechanism of the present invention; Figure 5 This is a structural view of the inclined workbench base of the present invention; Figure 6 This is a structural view of the L-shaped frame of the present invention; Figure 7 This is a schematic diagram of the installation of the workpiece base and the copper tile of the present invention; Figure 8 This is a structural view of the cylinder guide rod of the present invention; Figure 9 This is a schematic diagram showing the location of the filter port in this invention; Figure 10 This is a schematic diagram showing the location of the oil mist separator of the present invention; Figure 11 This is a schematic diagram of the layout of the concealed piping system of the present invention.

[0015] In the picture: 1. Inclined worktable base; 2. L-shaped frame; 3. Workpiece lower base; 31. Copper tile; 32. Air tightness test hole; 33. Water spray hole; 4. Workpiece upper base; 5. Telescopic cylinder; 6. Cylinder guide rod; 7. Rotary clamping mechanism; 71. Rotary clamping cylinder; 72. Material pulling plate; 8. Positioning mechanism; 81. Positioning cylinder; 82. Positioning stop block; 9. Machine tool outer protective cover; 91. Filter port; 92. Oil mist separator. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figure 1-11 This invention discloses a chip-resistant machine tool specifically designed for thin-walled cylindrical parts, comprising a bed; a spindle box mounted on the bed for driving the tool to rotate; a tool feed mechanism mounted on the bed for driving the tool to feed axially and radially; and a clamping system for clamping the thin-walled cylindrical parts, the clamping system comprising: An inclined worktable base 1 is mounted on the machine bed. The top of the inclined worktable base 1 is provided with an inverted V-shaped inclined surface to guide the chips generated during the machining process to slide off. L-shaped frame 2 is set on inclined workbench base 1. The L-shaped frame 2 has a hollow wiring channel inside to accommodate cylinder pipelines and electrical component wiring. The workpiece lower base 3 is set on the inclined worktable base 1 and is used to support the thin-walled cylindrical part; The upper base 4 of the workpiece is movably set above the lower base 3 of the workpiece. After the upper base 4 and the lower base 3 of the workpiece are closed, they form a clamping cavity, which is used to hug and clamp the thin-walled cylindrical part. Telescopic cylinder 5 is fixed on L-shaped frame 2. The piston rod end of telescopic cylinder 5 is connected to workpiece upper base 4 and is used to drive workpiece upper base 4 to move up and down to clamp or release workpiece. The cylinder guide rod 6 is fixed on the L-shaped frame 2, and its movable end is connected to the workpiece upper base 4, which is used to provide guidance for the lifting and lowering movement of the workpiece upper base 4. The fixture system integrates an interconnected air and water channel network, which is distributed within at least two of the inclined table base 1, L-shaped frame 2, workpiece lower base 3, workpiece upper base 4, and cylinder guide rod 6, forming a concealed pipeline layout.

[0018] This invention, through the synergistic design of an inverted V-shaped inclined surface and a concealed pipeline layout, on the one hand, utilizes the inclined surface of the inclined worktable base 1 to guide the chips to automatically slide down to the chip conveyor, avoiding the accumulation of chips on the base surface; on the other hand, it conceals and integrates all the air and water circuits required by the fixture system inside each structural component, eliminating direct contact between external pipelines and chips and cutting fluid, fundamentally solving the technical problems of chip accumulation and pipeline chip entanglement and wear in traditional machine tools, and realizing automated continuous operation of the machining process and long-term stable maintenance of the equipment.

[0019] It should be noted that the bed structure, spindle box drive method, tool feed mechanism, basic cylinder structure, and detachable connection method of ordinary machine tools are all mature existing technologies, and will not be elaborated on here.

[0020] In one embodiment, the cylinder guide rod 6 has a hollow structure, serving both as a guide support for the telescopic cylinder 5 and as an air transmission channel for the clamping system.

[0021] This design allows a single guide rod to serve both guiding and support functions as well as pipeline transmission, reducing the need for additional external air pipes. At the same time, the air passages within the hollow structure are protected by the outer wall of the rod, avoiding the problem of debris entanglement and wear on exposed air pipes.

[0022] In one embodiment, the inclined angle of the inclined workbench base 1 is 30°.

[0023] This design, with a 30° incline angle, allows the chips generated during processing to slide smoothly down the incline under the influence of gravity. The gravitational component of the chips along the incline is greater than the frictional force between the chips and the incline, preventing the accumulation of chips on the base surface, reducing the frequency of manual cleaning, and ensuring the continuity of the processing.

[0024] Specifically, the inclined workbench base 1 is a cast structure made of HT300. The connection between the inclined surface and the side plate is rounded to avoid dead corners for chip accumulation caused by the right-angle design, so that the chips can slide more smoothly down the inclined surface under the action of gravity.

[0025] Specifically, the inclined table base 1 has multiple through holes on both sides of the bottom for connecting to the machine tool bed.

[0026] In one embodiment, the upper part of the L-shaped frame 2 is a groove-shaped structure, and the front half of the suspended part is provided with a through hole for the telescopic cylinder 5 and the cylinder guide rod 6 to pass through. The back of the L-shaped frame 2 is provided with a maintenance port that communicates with the hollow wiring channel, and the maintenance port is provided with a removable cover plate.

[0027] This design, through its grooved structure and suspended front section, provides stable installation support and movement guidance space for the telescopic cylinder 5 and cylinder guide rod 6; the rear maintenance port, combined with a removable cover, facilitates routine inspection and maintenance of pipelines and electrical components hidden in the hollow wiring channel.

[0028] In one embodiment, the cover plate on the back of the L-shaped frame 2 is made of transparent fiberglass board for observation and inspection of internal pipelines and components.

[0029] This design combines light transmission and structural strength in the transparent fiberglass panel, allowing operators to directly observe the operating status of internal pipelines and components without opening the cover, facilitating quick fault location. At the same time, the fiberglass material has insulating and corrosion-resistant properties, making it suitable for long-term use in machine tool processing environments.

[0030] In one embodiment, the clamping system further includes a rotary clamping mechanism 7 and a positioning mechanism 8; The rotary clamping mechanism 7 includes a rotary clamping cylinder 71 and a pulling plate 72. The rotary clamping cylinder 71 is mounted on the L-shaped frame 2. The pulling plate 72 is connected to the output end of the rotary clamping cylinder 71 and is used to rotate and push the workpiece to move along the axial direction to a specified position after the workpiece is placed. The positioning mechanism 8 includes a positioning cylinder 81 and a positioning stop block 82. The positioning cylinder 81 is mounted on the L-shaped frame 2, and the positioning stop block 82 is connected to the output end of the positioning cylinder 81. It is used to extend to a designated position to position the workpiece when it is being loaded.

[0031] This design, through the cooperation of the rotary clamping mechanism 7 and the positioning mechanism 8, achieves automated and precise positioning and axial pushing of the workpiece; during loading, the positioning cylinder 81 extends to drive the positioning stop block 82 to form a positioning reference; after the workpiece is placed, the rotary clamping cylinder 71 drives the pulling plate 72 to rotate and push the workpiece to the designated position, and then the workpiece is pressed down and clamped by the base 4. The whole process is highly automated and precise in positioning, reducing manual intervention.

[0032] Specifically, when the rotary clamping mechanism 7 is working, the rotary clamping cylinder 71 rotates, driving the pulling plate 72 to rotate 90°, pushing the workpiece axially to the designated position. After the above action is completed, the rotary clamping cylinder 71 retracts 90° to a vertical position.

[0033] With this design, the pull plate 72 retracts to a vertical position after pushing the material, avoiding interference with the tool feed during processing. At the same time, the vertical pull plate 72 occupies a small area and will not affect the normal cutting motion during the workpiece processing.

[0034] In one embodiment, the cross-sections of the lower workpiece base 3 and the upper workpiece base 4 are semi-circular arcs, and each is equipped with a copper tile 31. The copper tile 31 is provided with at least one air tightness detection hole 32 and at least one water spray hole 33. The air tightness detection hole 32 is connected to the air passage network, and the water spray hole 33 is connected to the water passage network.

[0035] This design integrates an airtightness detection hole 32 and a water spray hole 33 on the copper tile 31, enabling self-detection of the clamping status of the fixture and automatic cleaning after processing. After compressed air is introduced into the airtightness detection hole 32, the pressure change can be used to determine whether the workpiece is clamped properly, thus triggering an automatic alarm for improper clamping. After processing, the water spray hole 33 is used to introduce cleaning fluid to rinse the surface of the fixture, remove residual chips, and prepare for the next processing cycle.

[0036] Specifically, the copper tiles 31 of the upper base 4 and the lower base 3 of the workpiece are replaceable structures. By replacing the copper tiles 31 with different inner diameters, the processing requirements of cylindrical parts with different diameters and lengths can be met.

[0037] In one embodiment, the machine tool also includes an outer protective cover 9. The outer protective cover 9 has an oil mist separation channel inside. One end of the oil mist separation channel is connected to the filter port 91 of the machine tool processing area, and the other end is connected to the oil mist separator 92, so that the oil mist generated during the processing can enter the oil mist separator 92 through the oil mist separation channel.

[0038] This design integrates the oil mist separation channel inside the machine tool's outer protective cover, replacing the traditional external oil mist separation pipeline. This avoids the problem of external pipelines being entangled and worn by chips in the processing area, simplifies the overall pipeline layout of the machine tool, and improves the reliability of equipment operation and the neatness of its appearance.

[0039] In one embodiment, a chip-blocking header is provided on the base 4 of the workpiece to prevent chips from splashing upwards to the outside of the processing area.

[0040] This design creates a physical barrier during machining, preventing chips generated by high-speed cutting from splashing upwards. Combined with the downward chip removal function of the inclined worktable base, it forms a three-dimensional chip prevention system that effectively protects operators and equipment components outside the machining area.

[0041] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0042] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0043] Additionally, "multiple" refers to two or more.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A chip-resistant machine tool for thin-walled cylindrical parts, comprising a bed; a spindle box disposed on the bed for driving the tool to rotate; a tool feed mechanism disposed on the bed for driving the tool to feed axially and radially; and a clamping system for clamping the thin-walled cylindrical parts, characterized in that: The clamping system includes: An inclined worktable base (1) is provided on the bed. The top of the inclined worktable base (1) is provided with an inverted V-shaped inclined surface to guide the chips generated during the processing to slide off. The L-shaped frame (2) is set on the inclined workbench base (1). The L-shaped frame (2) has a hollow wiring channel inside to accommodate cylinder pipelines and electrical component wiring. The workpiece lower base (3) is set on the inclined worktable base (1) and is used to support the thin-walled cylindrical part; The upper base (4) of the workpiece is movably disposed above the lower base (3) of the workpiece. After the upper base (4) of the workpiece and the lower base (3) of the workpiece are closed, a clamping cavity is formed for circumferentially clamping the thin-walled cylindrical part. Telescopic cylinder (5) is fixed on the L-shaped frame (2). The piston rod end of the telescopic cylinder (5) is connected to the workpiece upper base (4) and is used to drive the workpiece upper base (4) to move up and down to clamp or release the workpiece. The cylinder guide rod (6) is fixed on the L-shaped frame (2), and its movable end is connected to the workpiece upper base (4) to provide guidance for the lifting and lowering movement of the workpiece upper base (4); The fixture system integrates an interconnected air passage network and a water passage network. The air passage network and the water passage network are distributed inside at least two of the inclined table base (1), L-shaped frame (2), workpiece lower base (3), workpiece upper base (4) and cylinder guide rod (6), forming a hidden pipeline layout.

2. The chip-resistant machine tool for thin-walled cylindrical parts according to claim 1, characterized in that: The inclined angle of the inclined workbench base (1) is 30°.

3. The chip-resistant machine tool for thin-walled cylindrical parts according to claim 1, characterized in that: The L-shaped frame (2) has a groove-shaped structure on the top, and the front half of the suspended part is provided with a through hole for the telescopic cylinder (5) and the cylinder guide rod (6) to pass through. The back of the L-shaped frame (2) is provided with a maintenance port that communicates with the hollow wiring channel, and the maintenance port is provided with a detachable cover plate.

4. The chip-resistant machine tool for thin-walled cylindrical parts according to claim 3, characterized in that: The cover plate on the back of the L-shaped frame (2) is made of transparent fiberglass board, which is used for observation and inspection of internal pipelines and components.

5. The chip-resistant machine tool for thin-walled cylindrical parts according to claim 1, characterized in that: The clamping system also includes a rotary clamping mechanism (7) and a positioning mechanism (8); The rotary clamping mechanism (7) includes a rotary clamping cylinder (71) and a pulling plate (72). The rotary clamping cylinder (71) is mounted on the L-shaped frame (2). The pulling plate (72) is connected to the output end of the rotary clamping cylinder (71) and is used to rotate and push the workpiece to move along the axial direction to a specified position after the workpiece is placed. The positioning mechanism (8) includes a positioning cylinder (81) and a positioning stop block (82). The positioning cylinder (81) is mounted on the L-shaped frame (2). The positioning stop block (82) is connected to the output end of the positioning cylinder (81) and is used to extend to a designated position to position the workpiece when it is being loaded.

6. The chip-resistant machine tool for thin-walled cylindrical parts according to claim 1, characterized in that: The cross-sections of the lower base (3) and the upper base (4) of the workpiece are semi-circular arcs, and copper tiles (31) are installed inside each of them. At least one air tightness test hole (32) and at least one water spray hole (33) are provided on the copper tile (31). The air tightness test hole (32) is connected to the air passage network, and the water spray hole (33) is connected to the water passage network.

7. The chip-resistant machine tool for thin-walled cylindrical parts according to claim 1, characterized in that: It also includes a machine tool outer protective cover (9), which has an oil mist separation channel inside. One end of the oil mist separation channel is connected to the filter port (91) of the machine tool processing area, and the other end is connected to the oil mist separator (92) so that the oil mist generated during the processing can enter the oil mist separator (92) through the oil mist separation channel.

8. The chip-resistant machine tool for thin-walled cylindrical parts according to claim 1, characterized in that: The workpiece base (4) is provided with a chip-blocking header to prevent chips from splashing upwards to the outside of the processing area.

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