A cutting device for machining mechanical parts

Abstract

This invention relates to the field of laser cutting technology, and more particularly to a cutting device for machining mechanical parts, comprising: a processing table, a drive frame, and a cutting head mounted on the drive frame. A collecting cover is disposed in the middle of the processing table, and a placement plate is fixedly connected to the upper end of the collecting cover. A telescopic frame is disposed inside the collecting cover, and multiple limiting components are equidistantly arranged on the telescopic frame. Each limiting component includes a bottom tube, a limiting ring, a sliding rod, and a sliding tube. The bottom tube is fixedly connected to the telescopic frame, the limiting ring is fixedly connected to the middle of the bottom tube, the sliding rod is inserted into the middle of the limiting ring, and the sliding tube is slidably disposed at the upper end of the bottom tube. The sliding tube is made of iron. A telescopic component is disposed between the sliding tube and the limiting ring. A locking assembly is disposed between the sliding rod and the sliding tube. This invention, by adjusting the layout and height of the limiting components, can quickly adapt to different parts without changing the fixture, thus improving the flexibility of the equipment.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, and in particular to a cutting device for machining mechanical parts. Background Technology

[0002] The machining of mechanical parts is shifting from extensive material cutting to precision, flexibility, and intelligent manufacturing. During the machining process, parts need to be cut. Laser cutting is widely used in the machining of mechanical parts due to its advantages such as high precision, high speed, and small heat-affected zone.

[0003] Patent CN117943609B discloses a cutting device for machining mechanical parts, including a cutting box and an electrical control cabinet located on one side of the cutting box. The cutting box contains a worktable that can move left, right, forward, and backward. A cutting blade for cutting mechanical parts is located above the worktable. Support plates are symmetrically arranged on both sides of the worktable. A second linear guide is fixedly installed on the surface of the support plate. A receiving plate is fixedly installed on the slider of the second linear guide. A magnetic suction assembly is provided between the workpiece clamp and the receiving plate. When adjusting the position of the workpiece clamp, the workpiece clamp can be slid to a position away from the worktable and inserted into the receiving plate. After being attracted by the magnetic suction assembly, the workpiece clamp can be moved to the desired position by the second linear guide. This provides convenience for manually adjusting the clamping position of the workpiece clamp.

[0004] However, due to the different shapes of parts of different specifications, the existing processing equipment may cause uneven force on the parts when clamping and fixing irregularly shaped parts with rigid clamping. Especially in thin-walled parts or plastic materials, excessive clamping force can easily cause elastic or plastic deformation. After processing, the parts return to their original shape, resulting in dimensional deviations. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that rigid clamping in the prior art may cause uneven force on parts, especially in thin-walled parts or plastic materials. Excessive clamping force can easily cause elastic or plastic deformation, and the parts will return to their original shape after processing, resulting in out-of-tolerance dimensions. Therefore, a cutting device for machining mechanical parts is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A cutting device for machining mechanical parts includes: a processing table, a drive frame, and a cutting head disposed on the drive frame. A collection cover is disposed in the middle of the processing table, and a placement plate is fixedly connected to the upper end of the collection cover. A telescopic frame is disposed inside the collection cover, and multiple limiting members are equidistantly disposed on the telescopic frame. The multiple limiting members form a limiting array for fixing the position of the parts. The limiting component includes a bottom tube, a limiting ring, a sliding rod, and a sliding tube. The bottom tube is fixedly connected to the telescopic frame, the limiting ring is fixedly connected to the middle of the bottom tube, the sliding rod is inserted into the middle of the limiting ring, and the sliding tube is slidably disposed at the upper end of the bottom tube, with its bottom inserted into the sliding rod. The sliding tube is made of iron. A telescopic component is provided between the sliding tube and the limiting ring. The telescopic component is used to drive the sliding tube to slide up and down inside the bottom tube. A locking component is provided between the sliding rod and the sliding tube, and the locking component is used to control the relative position between the sliding rod and the sliding tube.

[0007] Preferably, the telescopic frame includes an outer frame, multiple mounting strips and two telescopic rods. The multiple mounting strips are fixedly connected between the outer frame, and the two telescopic rods are symmetrically fixedly connected to the bottom of both sides of the outer frame, with their bottom ends fixedly connected to the inner wall of the collection hood.

[0008] Preferably, a triggering component is provided between the sliding rod and the limiting ring, and the triggering component is used to control the power supply of the telescopic component.

[0009] Preferably, the triggering component includes a connecting ring, a support ring, and a connecting ring. The connecting ring is fixedly sleeved on the middle of the sliding rod and has a connecting ring groove at the bottom. The connecting ring is fixedly connected to the upper surface of the limiting ring. The support ring is made of elastic material and is fixedly connected between the connecting ring and the limiting ring.

[0010] Preferably, the telescopic component includes an upper fixing ring, a lower fixing ring, and a first spiral coil tube. The upper fixing ring is fixedly connected to the middle part of the sliding tube, the lower fixing ring is fixedly connected to the upper surface of the connecting ring, the first spiral coil is fixedly connected between the upper fixing ring and the lower fixing ring, and is electrically connected to the connecting ring. The first spiral coil tube is sleeved on the outside of the sliding tube, and the sliding tube is made of iron. When the first spiral coil is energized, a magnetic field is generated at both ends of the sliding tube.

[0011] Preferably, the locking assembly includes two elastic shafts, two locking blocks, a push rod, and a push ring. The sliding rod has a sliding groove in the middle. The two elastic shafts are symmetrically connected to the upper end of the sliding groove. The two locking blocks are respectively fixedly connected to the two elastic shafts to form an inverted V-shaped locking component. The inner wall of the sliding tube has a locking groove. The push rod is slidably disposed inside the sliding groove. The sliding groove has symmetrical sliding openings on both sides. The push ring is sleeved on the sliding rod and is fixedly connected to the push rod through a protruding part.

[0012] Preferably, the bottoms of the two locking blocks form a figure-eight shape, the upper end of the push rod is conical, and the push rod moves upward to press the bottom of the locking blocks outward.

[0013] Preferably, a sealing assembly is provided at the bottom of the sliding rod. The sealing assembly includes a second spiral coil tube and a sealing block. The second spiral coil tube is fixedly connected to the bottom end of the sliding rod, and the sealing block is fixedly connected to the bottom end of the second spiral coil tube and is slidably disposed inside the bottom tube. The bottom end of the bottom tube is provided with multiple air outlets in an annular shape.

[0014] Preferably, the bottom tube has an air inlet and a connecting pipe on its side, and two sealing plates are symmetrically fixedly connected to the upper surface of the sealing block. The sealing plates have an opening in the middle for connecting the air inlet and the connecting pipe.

[0015] Preferably, the upper end of the sliding tube is provided with a rotating groove, and a ball bearing is provided inside the rotating groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. Each limiting component in this invention independently responds to the surface of the part to form a conformal support surface, which effectively solves the problem of clamping irregularly shaped parts. At the same time, multi-point support avoids stress concentration and prevents the parts from deforming during processing. By adjusting the layout and height of the limiting components, different parts can be quickly adapted without changing the fixture, thus improving the flexibility of the equipment. 2. The triggering component automatically connects to the power supply through mechanical contact, without the need for additional sensors. It has a simple and reliable structure and can be autonomously triggered according to parts of different specifications, thus improving the accuracy of triggering. 3. Through matrix-type independent limiting components and electromagnetic drive adaptive bonding, the device can automatically form a support surface that perfectly matches the curved surface of the part, realizing the transition from rigid point contact to flexible full contact, and solving the problems of insufficient support points and stress concentration for irregularly shaped and curved parts. 4. During the entire process of the sliding rod moving downward, the sealing block at its bottom presses down on the air in the bottom tube to form an air cushion, which generates a damping effect, absorbs and suppresses the vibration generated during the cutting process, and squeezes the gas inside the bottom tube out through the sealing block. The gas is then guided to the installation strip through multiple air outlets, thereby cleaning the installation strip and reducing the need for subsequent cleaning of the installation strip. 5. First, use magnetic force for flexible bonding, then use mechanical force for rigid locking. During the clamping stage, controllable magnetic force is used to achieve gentle and uniform clamping, preventing elastic or plastic deformation of parts caused by excessive clamping force. During the processing stage, reliable mechanical locking provides rigid fixation, absolutely guaranteeing stability and accuracy during the processing. Attached Figure Description

[0017] Figure 1 This is a front structural diagram of a cutting device for machining mechanical parts proposed in this invention; Figure 2 This is a schematic diagram of the collection cover structure of a cutting device for machining mechanical parts proposed in this invention; Figure 3 This is a schematic diagram of the bottom structure of the telescopic frame of a cutting device for machining mechanical parts proposed in this invention; Figure 4 This is a schematic diagram of the front structure of the limiting component of a cutting device for machining mechanical parts proposed in this invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the limiting component of a cutting device for machining mechanical parts proposed in this invention; Figure 6 This is a schematic diagram of the internal structure of the limiting component of a cutting device for machining mechanical parts proposed in this invention; Figure 7 for Figure 5 Enlarged structural diagram at point A; Figure 8 This is a schematic diagram of the locking component structure of a cutting device for machining mechanical parts proposed in this invention; Figure 9 This is a schematic diagram of the internal structure of the limiting component of a cutting device for machining mechanical parts in the unpowered state, as proposed in this invention. Figure 10 This is a schematic diagram of the internal structure of the limiting component of a cutting device for machining mechanical parts, as proposed in this invention, in the energized state.

[0018] In the diagram: 1. Processing table; 2. Collection cover; 3. Telescopic frame; 31. Outer frame; 32. Mounting strip; 33. Telescopic rod; 4. Limiting component; 41. Bottom tube; 42. Limiting ring; 43. Sliding rod; 44. Sliding tube; 5. Telescopic component; 51. Upper fixing ring; 52. Lower fixing ring; 53. First spiral coil tube; 6. Locking assembly; 61. Elastic shaft; 62. Locking block; 63. Push rod; 64. Push ring; 7. Trigger assembly; 71. Connecting ring; 72. Support ring; 73. Connecting ring; 8. Sealing assembly; 81. Second spiral coil tube; 82. Sealing block; 9. Sealing plate; 10. Drive frame; 11. Cutting head; 12. Connecting tube; 13. Ball bearing. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] The terms used in this invention, such as "upper," "lower," "left," "right," "middle," and "one," are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0021] Reference Figures 1-10A cutting device for machining mechanical parts includes: a processing table 1, a drive frame 10, and a cutting head 11 disposed on the drive frame 10. A collection cover 2 is disposed in the middle of the processing table 1. A placement plate is fixedly connected to the upper end of the collection cover 2. A telescopic frame 3 is disposed inside the collection cover 2. A plurality of limiting members 4 are equidistantly disposed on the telescopic frame 3. The plurality of limiting members 4 form a limiting array for fixing the position of the parts. The limiting component 4 includes a bottom tube 41, a limiting ring 42, a sliding rod 43, and a sliding tube 44. The bottom tube 41 is fixedly connected to the telescopic frame 3. The limiting ring 42 is fixedly connected to the middle part of the bottom tube 41. The sliding rod 43 is inserted into the middle part of the limiting ring 42. The sliding tube 44 is slidably disposed at the upper end of the bottom tube 41, and its bottom is inserted into the sliding rod 43. The sliding tube 44 is made of iron. A telescopic component 5 is provided between the sliding tube 44 and the limiting ring 42. The telescopic component 5 is used to drive the sliding tube 44 to slide up and down inside the bottom tube 41. A locking component 6 is provided between the sliding rod 43 and the sliding tube 44, and the locking component 6 is used to control the relative position between the sliding rod 43 and the sliding tube 44.

[0022] In embodiments applying the above technical solutions, traditional fixtures often use planar or regular clamping surfaces, which cannot conform to the three-dimensional contours of curved, multi-angle, and asymmetrical parts, resulting in fewer clamping points, local stress concentration, easy shaking or displacement of parts, affecting cutting accuracy and requiring frequent replacement or adjustment of fixtures, thus reducing production efficiency.

[0023] Meanwhile, rigid clamping can easily cause thin-walled parts and plastic materials to undergo elastic or plastic deformation. During the processing, the parts are under stress, and the stress release after processing leads to dimensional deviations.

[0024] When cutting flat parts, the telescopic frame 3 moves the limiting array downwards to place the parts on the placement table for processing. The top of the limiting array can be located below the parts to achieve a magnetic fixation effect. Since the placement table has equally spaced slots and the limiting components 4 are located directly below the slots, when it is necessary to cut irregularly shaped parts, the telescopic frame 3 is moved upwards to move multiple limiting components 4 upwards. The limiting array passes through the slots to limit and fix the irregularly shaped parts.

[0025] In this invention, each limiting member 4 independently responds to the surface of the part to form a conformal support surface, which effectively solves the problem of clamping irregularly shaped parts. At the same time, multi-point support avoids stress concentration and prevents the parts from deforming during processing. By adjusting the layout and height of the limiting member 4, it can quickly adapt to different parts without changing the fixture, thus improving the flexibility of the equipment.

[0026] The preferred technical solution in this embodiment is: Reference Figure 3 The telescopic frame 3 includes an outer frame 31, multiple mounting strips 32 and two telescopic rods 33. The multiple mounting strips 32 are fixedly connected between the outer frame 31, and the two telescopic rods 33 are symmetrically fixedly connected to the bottom of both sides of the outer frame 31, and their bottom ends are fixedly connected to the inner wall of the collection cover 2.

[0027] Multiple mounting strips 32 are correspondingly arranged below the strip opening to ensure that when the telescopic rod 33 moves the mounting strips 32 upward, the limiting member 4 can pass through the strip opening and quickly adapt to the clamping and limiting of different parts.

[0028] Reference Figure 7 A trigger component 7 is provided between the sliding rod 43 and the limiting ring 42, and the trigger component 7 is used to control the power supply of the telescopic component 5; The triggering component 7 includes a connecting ring 71, a support ring 72, and a connecting ring 73. The connecting ring 71 is fixedly sleeved on the middle of the sliding rod 43 and has a connecting groove at the bottom. The connecting ring 73 is fixedly connected to the upper surface of the limiting ring 42. The support ring 72 is made of elastic material and is fixedly connected between the connecting ring 71 and the limiting ring 42.

[0029] When placing irregularly shaped parts on the limiting array, in order to avoid wasting electrical energy, a trigger component 7 needs to be set inside the limiting component 4 to ensure that only the limiting component 4 under pressure is energized, thus ensuring precise energization. This not only ensures effective magnetic fixation of irregularly shaped parts but also reduces energy waste.

[0030] When the sliding tube 44 is compressed, the entire sliding tube 44 is fixed relative to the sliding rod 43 by the locking component 6, and is treated as a whole. The first spiral coil tube 53 does not have an elastic effect. At this time, the gravity of the part acts on the sliding rod 43, thereby driving the sliding rod 43 to move down. The connecting ring 71, which is fixedly connected to the sliding rod 43, will also move down, thereby connecting the connecting ring 73 with the connecting groove, making the connecting ring 71 and the first spiral coil tube 53 electrically connected. The power inside the limiting ring 42 can be introduced into the first spiral coil tube 53. The trigger component 7 automatically connects the power supply through mechanical contact. No additional sensor is required. The structure is simple and reliable. It can also be autonomously triggered according to different specifications of parts, which improves the triggering accuracy.

[0031] Reference Figure 6The telescopic component 5 includes an upper fixing ring 51, a lower fixing ring 52, and a first spiral coil tube 53. The upper fixing ring 51 is fixedly connected to the middle part of the sliding tube 44, the lower fixing ring 52 is fixedly connected to the upper surface of the connecting ring 71, the first spiral coil is fixedly connected between the upper fixing ring 51 and the lower fixing ring 52, and is electrically connected to the connecting ring 73. The first spiral coil tube 53 is sleeved on the outside of the sliding tube 44, and the sliding tube 44 is made of iron. When the first spiral coil is energized, a magnetic field is generated at both ends of the sliding tube 44. Traditional electric or pneumatic drives are prone to impact during clamping, which can cause damage to the surface of parts or fluctuations in positioning accuracy.

[0032] After the circuit is turned on, the first spiral coil tube 53 is energized and generates an axial magnetic field. The sliding tube 44, made of iron, is magnetized and is attracted downward under the action of the magnetic field, and begins to move down smoothly to fit the surface of the part.

[0033] The coil tube serves as a structural support, keeping the sliding tube 44 in a high position to facilitate the placement of parts. When the coil tube is energized, it generates an axial magnetic field, attracting the sliding tube 44 to move smoothly downwards, thus achieving movement. Each limiting member 4 independently adjusts its downward movement according to the pressure from the parts it receives, achieving adaptive clamping across the entire area. Each limiting member 4 independently responds to the surface contour and pressure of the parts at its corresponding location. The upper surfaces of the sliding tubes 44 of all the limiting members 4 together form a flexible support array that adaptively and completely fits the three-dimensional curved surface of the parts.

[0034] When the first spiral coil tube 53 is de-energized, the magnetic field disappears, and the sliding tube 44 is no longer attracted by the magnetic force. Under the action of the elastic restoring force of the support ring 72 and the first spiral coil, the sliding rod 43 drives the entire limiting component 4 to slowly return to the initial high position. The locking component 6 remains unlocked, and the operator can easily remove the processed parts. The device is ready to start the next work cycle.

[0035] Through the matrix-type independent limiting component 4 and electromagnetic drive adaptive bonding, the device can automatically form a support surface that perfectly matches the curved surface of the part, realizing the transition from rigid point contact to flexible full contact, and solving the problems of insufficient support points and stress concentration for irregularly shaped and curved parts.

[0036] Reference Figures 8-10 The locking assembly 6 includes two elastic shafts 61, two locking blocks 62, a push rod 63, and a push ring 64. The sliding rod 43 has a sliding groove in the middle. The two elastic shafts 61 are symmetrically connected to the upper end of the sliding groove. The two locking blocks 62 are respectively fixedly connected to the two elastic shafts 61 to form an inverted V-shaped locking component. The inner wall of the sliding tube 44 has a locking groove. The push rod 63 is slidably disposed inside the sliding groove. The sliding groove has symmetrical sliding openings on both sides. The push ring 64 is sleeved on the sliding rod 43 and is fixedly connected to the push rod 63 through a protruding part. The bottoms of the two locking blocks 62 form a figure-eight shape, and the upper end of the push rod 63 is conical. The push rod 63 moves upward to press the bottom of the locking blocks 62 outward.

[0037] The first spiral coil tube 53 generates an axial magnetic field when energized, and the sliding tube 44 made of iron is magnetized. The magnetic field at the bottom of the sliding tube 44 also acts on the push ring 64 made of magnetically conductive material, generating an upward magnetic force. The push ring 64 moves upward, driving the push rod 63 to push upward. The conical upper end of the push rod 63 presses outward against the V-shaped bottom of the two locking blocks 62, forcing the locking blocks 62 to disengage from the locking grooves on the inner wall of the sliding tube 44, releasing the mechanical lock, and allowing the sliding tube 44 to adjust its position freely.

[0038] After the sliding tube 44 completes its position adjustment, the push rod 63 slightly resets with the assistance of the elastic shaft 61. The two locking blocks 62 rebound inward under their own elasticity or the action of the auxiliary spring, locking into the locking grooves at the corresponding positions on the inner wall of the sliding tube 44, thus achieving rigid mechanical locking. In this way, the parts are first flexibly fitted and then rigidly locked, resulting in no clamping deformation and resistance to processing vibrations.

[0039] First, magnetic force is used for flexible bonding, followed by mechanical rigid locking. During the clamping stage, controllable magnetic force is used to achieve gentle and uniform clamping, preventing elastic or plastic deformation of parts caused by excessive clamping force. During the processing stage, reliable mechanical locking provides rigid fixation, absolutely guaranteeing stability and accuracy during the processing.

[0040] Reference Figures 8-10 The bottom of the sliding rod 43 is provided with a sealing component 8, which includes a second spiral coil tube 81 and a sealing block 82. The second spiral coil tube 81 is fixedly connected to the bottom end of the sliding rod 43, and the sealing block 82 is fixedly connected to the bottom end of the second spiral coil tube 81 and is slidably disposed inside the bottom tube 41. The bottom end of the bottom tube 41 is provided with a plurality of air outlets in an annular shape.

[0041] During the entire downward movement of the sliding rod 43, the sealing block 82 at its bottom simultaneously presses down on the air inside the bottom tube 41, forming an air cushion that generates a damping effect, absorbing and suppressing the vibration generated during the cutting process.

[0042] Once the cutting process begins, molten particles generated during the high-temperature cutting process will fall onto the mounting strip 32, requiring periodic cleaning, which consumes a lot of time and manpower. After the second spiral coil tube 81 is energized, it will cause the sealing block 82 to slide inside the bottom tube 41. Due to the negative pressure inside the bottom tube 41, air will be drawn from the outside into the bottom tube 41. After the cutting is completed, the second spiral coil tube 81 will reset under its own elasticity, causing the sealing block 82 to move down. The sealing block 82 will squeeze the gas inside the bottom tube 41 out and guide the gas to the mounting strip 32 through multiple air outlets, thereby cleaning the mounting strip 32 and reducing the need for subsequent cleaning of the mounting strip 32.

[0043] Reference Figure 10 The bottom tube 41 has an air inlet and a connecting tube 12 on its side. Two sealing plates 9 are symmetrically fixedly connected to the upper surface of the sealing block 82. The sealing plate 9 has an opening in the middle for connecting the air inlet and the connecting tube 12.

[0044] During laser cutting, cutting exhaust gas is generated. This exhaust gas mainly consists of protective gas and material vaporization, and contains some tiny particles. During the cutting process, the second spiral coil is energized and contracts, thereby moving the sealing plate 9 upward and connecting the air inlet and the connecting pipe 12. The connecting pipe 12 is connected to an external negative pressure device. During the cutting process, the negative pressure device absorbs and discharges the exhaust gas through the air inlet, and the non-working limiting member 4 closes the air inlet and the connecting pipe 12, avoiding the dispersion of the negative pressure suction force and ensuring the concentrated extraction of exhaust gas.

[0045] The upper end of the sliding tube 44 is provided with a rotating groove, and a ball bearing 13 is provided inside the rotating groove.

[0046] Before the part is finally clamped, the angle or position needs to be finely adjusted. Traditional fixtures are difficult to make fine adjustments while clamped. The upper end of the sliding tube 44 is provided with a rotating groove with ball bearings 13, so that the part can be slightly rotated after it is placed.

[0047] It facilitates fine angle adjustment before clamping, and is especially suitable for parts with directional requirements. Positioning and angle adjustment can be completed in one placement, reducing repeated clamping and improving efficiency.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cutting apparatus for machining a mechanical part, comprising: A processing table, a drive frame, and a cutting head mounted on the drive frame are characterized in that a collection cover is provided in the middle of the processing table, a placement plate is fixedly connected to the upper end of the collection cover, a telescopic frame is provided inside the collection cover, and multiple limiting members are equidistantly arranged on the telescopic frame, the multiple limiting members forming a limiting array for fixing the position of the parts. The limiting component includes a bottom tube, a limiting ring, a sliding rod, and a sliding tube. The bottom tube is fixedly connected to the telescopic frame, the limiting ring is fixedly connected to the middle of the bottom tube, the sliding rod is inserted into the middle of the limiting ring, and the sliding tube is slidably disposed at the upper end of the bottom tube, with its bottom inserted into the sliding rod. The sliding tube is made of iron. A telescopic component is provided between the sliding tube and the limiting ring. The telescopic component is used to drive the sliding tube to slide up and down inside the bottom tube. A locking component is provided between the sliding rod and the sliding tube, and the locking component is used to control the relative position between the sliding rod and the sliding tube.

2. The cutting apparatus for machining of mechanical parts as claimed in claim 1 wherein, The telescopic frame includes an outer frame, multiple mounting strips, and two telescopic rods. The multiple mounting strips are fixedly connected between the outer frame, and the two telescopic rods are symmetrically fixedly connected to the bottom of both sides of the outer frame, with their bottom ends fixedly connected to the inner wall of the collection hood.

3. The cutting apparatus for machining of mechanical parts as claimed in claim 1 wherein, A triggering component is provided between the sliding rod and the limiting ring, and the triggering component is used to control the power supply of the telescopic component.

4. The cutting apparatus for machining of mechanical parts as claimed in claim 3 wherein, The triggering component includes a connecting ring, a support ring, and a connecting ring. The connecting ring is fixedly sleeved in the middle of the sliding rod and has a connecting ring groove at the bottom. The connecting ring is fixedly connected to the upper surface of the limiting ring. The support ring is made of elastic material and is fixedly connected between the connecting ring and the limiting ring.

5. The cutting apparatus for machining of mechanical parts according to claim 4, characterized in that, The telescopic component includes an upper fixing ring, a lower fixing ring, and a first spiral coil tube. The upper fixing ring is fixedly connected to the middle part of the sliding tube, the lower fixing ring is fixedly connected to the upper surface of the connecting ring, and the first spiral coil tube is fixedly connected between the upper fixing ring and the lower fixing ring and electrically connected to the connecting ring. The first spiral coil tube is sleeved on the outside of the sliding tube, and the sliding tube is made of iron. When the first spiral coil is energized, a magnetic field is generated at both ends of the sliding tube.

6. A cutting device for machining mechanical parts according to claim 5, characterized in that, The locking assembly includes two elastic shafts, two locking blocks, a push rod, and a push ring. The sliding rod has a sliding groove in the middle. The two elastic shafts are symmetrically connected to the upper end of the sliding groove. The two locking blocks are respectively fixedly connected to the two elastic shafts to form an inverted V-shaped locking component. The inner wall of the sliding tube has a locking groove. The push rod is slidably disposed inside the sliding groove. The sliding groove has symmetrical sliding openings on both sides. The push ring is sleeved on the sliding rod and is fixedly connected to the push rod through a protruding part.

7. A cutting device for machining mechanical parts according to claim 6, characterized in that, The bottoms of the two locking blocks form a figure-eight shape, and the upper end of the push rod is conical. The push rod moves upward to press the bottom of the locking blocks outward.

8. A cutting device for machining mechanical parts according to claim 1, characterized in that, A sealing assembly is provided at the bottom of the sliding rod. The sealing assembly includes a second spiral coil tube and a sealing block. The second spiral coil tube is fixedly connected to the bottom end of the sliding rod, and the sealing block is fixedly connected to the bottom end of the second spiral coil tube and is slidably disposed inside the bottom tube. Multiple air outlets are circumferentially opened at the bottom end of the bottom tube.

9. A cutting device for machining mechanical parts according to claim 8, characterized in that, The bottom tube has an air inlet and a connecting pipe on its side. Two sealing plates are symmetrically fixed to the upper surface of the sealing block. An opening is provided in the middle of the sealing plate to connect the air inlet and the connecting pipe.

10. A cutting device for machining mechanical parts according to claim 1, characterized in that, The upper end of the sliding tube is provided with a rotating groove, and a ball bearing is provided inside the rotating groove.

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