Clamping tool for aero-engine part machining and working method of clamping tool

Abstract

The invention relates to the technical field of machine tool workpiece clamping devices, and discloses a clamping tool for aero-engine part machining and a working method of the clamping tool for aero-engine part machining. The clamping mechanism comprises a driving plate and a self-cleaning chip guiding assembly arranged on the outer side of the driving plate. A gravity chip removal channel is formed by the self-cleaning chip guide assembly through an inclined plane and a longitudinal chip guide groove, so that a cooling liquid mixture cannot be retained, a hemispherical head positioning pin of the floating chip prevention assembly forms a dynamic avoiding space under the action of a spring, and positioning deviation caused by chip extrusion is prevented; the magnetic adsorption chip removal assembly forms a gas-magnetic combined discharging system through a neodymium magnet and a chip blowing pipe, iron chips and non-magnetic impurities are removed in real time, a positioning face is continuously kept clean in the machining process, micron-sized positioning errors caused by chip accumulation are eliminated, workpiece surface scratches are avoided, and the machining quality is improved. And the problem that the positioning precision is reduced due to scrap accumulation in the machining process is effectively solved.

Description

Technical Field

[0001] This invention relates to the technical field of machine tool workpiece clamping devices, and more particularly to a clamping fixture for machining aero-engine parts and its working method. Background Technology

[0002] Aero-engine component machining clamping fixture is a specialized fixture used to precisely hold engine components during manufacturing, ensuring machining accuracy and stability. It is typically designed for complex parts such as blades and casings, employing rigid materials and high-precision positioning structures to meet the stringent dimensional and geometric tolerance requirements of aerospace manufacturing.

[0003] During the machining of aero-engine parts, the locating reference surface of the fixture easily accumulates a mixture of cutting debris and coolant, leading to inaccurate workpiece positioning. This accumulated debris interferes with clamping contact, causing a slight deviation between the actual and theoretical positions of the workpiece, and may also scratch the finished surfaces of the workpiece. This problem gradually becomes apparent after machining multiple parts consecutively, requiring operators to periodically stop the machine for cleaning, thus impacting machining efficiency. Summary of the Invention

[0004] In view of the problems existing in the clamping fixtures for machining aero-engine parts, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a clamping fixture for machining aero-engine parts. Its purpose is to achieve efficient chip prevention and removal functions through innovative structural design, effectively solve the problem of decreased positioning accuracy caused by chip accumulation during machining, reduce maintenance costs, and meet the needs of the aerospace manufacturing field for high-precision and high-reliability tooling.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including, Supporting structure, including the supporting frame; The clamping mechanism includes a drive plate, a self-cleaning chip guide assembly disposed on the outside of the drive plate, and a floating anti-chip assembly disposed in the inner cavity of the self-cleaning chip guide assembly.

[0007] As a preferred embodiment of the clamping fixture for machining aero-engine parts according to the present invention, the bearing mechanism further includes a guide rail disposed inside the bearing frame and a multi-angle adjustment component disposed outside the guide rail.

[0008] As a preferred embodiment of the clamping fixture for machining aero-engine parts according to the present invention, the multi-angle adjustment assembly includes a bracket movably mounted on the outside of the guide rail, a linear guide rod fixedly mounted on the inside of the bracket, a drive slider movably mounted on the outside of the linear guide rod, and a limiting rod fixedly mounted on the inside of the bracket, wherein the drive slider is movably sleeved on the outside of the limiting rod.

[0009] As a preferred embodiment of the clamping fixture for machining aero-engine parts according to the present invention, the clamping mechanism further includes a magnetic adsorption chip removal component located at the bottom of the self-cleaning chip guide assembly, a movable positioning block movably engaged in the groove on the outside of the drive plate, a support plate fixedly installed at the bottom of the positioning block, a card fixedly installed at the bottom of the support plate, a slot formed at the bottom of the positioning block, and a rotating rod fixedly installed at the top of the positioning block.

[0010] As a preferred embodiment of the clamping fixture for machining aero-engine parts according to the present invention, the self-cleaning chip guide assembly includes a fixed block fixedly installed on the outside of the drive plate, an inclined surface disposed on the outside of the fixed block, and a longitudinal chip guide groove formed in the inner cavity of the fixed block and communicating with the inclined surface.

[0011] As a preferred embodiment of the clamping fixture for machining aero-engine parts according to the present invention, the self-cleaning chip guide assembly further includes an anti-slip strip fixedly installed on the top of the fixed block, and a chip discharge groove formed at the bottom of the fixed block and communicating with the longitudinal chip guide groove.

[0012] As a preferred embodiment of the clamping fixture for machining aero-engine parts according to the present invention, the floating chip-proof assembly includes a hemispherical locating pin movably inserted into the inner cavity of the fixed block, a spring movably sleeved on the outside of the hemispherical locating pin, a protrusion fixedly installed at the end of the hemispherical locating pin, and a trapezoidal groove formed in the inner cavity of the fixed block.

[0013] As a preferred embodiment of the clamping fixture for machining aero-engine parts according to the present invention, the magnetic adsorption chip removal assembly includes a chip collection box movably mounted on the bottom of the fixed block, and a limiting groove formed on the top of the chip collection box.

[0014] As a preferred embodiment of the clamping fixture for machining aero-engine parts according to the present invention, the magnetic adsorption chip removal assembly further includes a chip blowing pipe fixedly installed on the outside of the chip collection box, a connecting pipe head fixedly installed on the outside of the chip blowing pipe, and a neodymium magnet placed in the inner cavity of the chip collection box.

[0015] The present invention also provides a method of use.

[0016] This invention provides the following technical solution: a method of use, including the aforementioned clamping fixture for machining aero-engine parts, the method comprising the following steps: S1: The workpiece is placed on the hemispherical positioning pin of the floating chip-proof component, and the spring adaptively adjusts the positioning gap. S2: The drive plate drives the self-cleaning chip guide assembly to clamp the workpiece, and the chips slide into the longitudinal chip guide groove along the inclined surface; S3: The magnetic adsorption chip removal component uses neodymium magnets to adsorb iron chips, and the chip blowing pipe helps to remove residual chips; S4: After processing is completed, the chip collection box is removed for cleaning, and the positioning block is reset by rotating the rod.

[0017] The beneficial effects of this invention are as follows: The self-cleaning chip guide assembly forms a gravity chip removal channel through the inclined surface and longitudinal chip guide groove, preventing the coolant mixture from accumulating. The hemispherical positioning pin of the floating chip removal assembly forms a dynamic avoidance space under the action of the spring, preventing chip compression from causing positioning deviation. The magnetic adsorption chip removal assembly forms a pneumatic-magnetic linkage system through neodymium magnets and chip blowing pipes, which removes iron chips and non-magnetic impurities in real time, keeping the positioning surface clean during the processing. This not only eliminates the micron-level positioning error caused by chip accumulation, but also avoids scratches on the workpiece surface, effectively solving the problem of decreased positioning accuracy caused by chip accumulation during processing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a partially exploded view of the clamping mechanism structure of the present invention.

[0020] Figure 3 This is a partial cross-sectional view of the fixing block structure of the present invention.

[0021] Figure 4 This is a partial schematic diagram of the clamping mechanism structure of the present invention.

[0022] Figure 5 This is a cross-sectional view of the fixed block structure of the present invention.

[0023] In the picture: 100. Bearing mechanism; 110. Bearing frame; 120. Guide rail; 130. Multi-angle adjustment assembly; 131. Bracket; 132. Linear guide rod; 133. Drive slider; 134. Limiting rod; 200. Clamping mechanism; 210. Drive plate; 220. Self-cleaning chip guide assembly; 221. Fixing block; 222. Inclined surface; 223. Longitudinal chip guide groove; 224. Anti-slip strip; 225. Chip discharge groove; 230. Floating anti-chip assembly; 231. Hemispherical head positioning pin; 232. Spring; 233. Protrusion; 234. Trapezoidal groove; 240. Magnetic adsorption chip discharge assembly; 241. Chip collection box; 242. Limiting channel; 243. Chip blowing pipe; 244. Connecting pipe head; 245. Neodymium magnet; 250. Positioning block; 260. Support plate; 270. Card; 280. Card slot; 290. Rotating rod. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0028] Example 1 Reference Figures 1-5 This is the first embodiment of the present invention, which provides a clamping fixture for machining aero-engine parts. This device includes, The load-bearing mechanism 100 includes a load-bearing frame 110; The clamping mechanism 200 includes a drive plate 210, a self-cleaning chip guide assembly 220 disposed on the outside of the drive plate 210, and a floating anti-chip assembly 230 disposed in the inner cavity of the self-cleaning chip guide assembly 220.

[0029] The system provides a stable support foundation by setting up a bearing mechanism 100, in which the bearing frame 110 ensures the rigidity of the overall structure. The clamping mechanism 200 integrates a drive plate 210 as the core of power transmission, and works with the self-cleaning chip guide component 220 to actively guide the cutting waste away. The embedded floating anti-chip component 230 can dynamically compensate for chip interference. The dual protection mechanism significantly improves the positioning reliability and effectively solves the problem of repeated positioning deviation caused by chip accumulation in traditional tooling while ensuring clamping accuracy.

[0030] Specifically, the bearing mechanism 100 also includes a guide rail 120 disposed inside the bearing frame 110, and a multi-angle adjustment assembly 130 disposed outside the guide rail 120. The multi-angle adjustment assembly 130 includes a bracket 131 movably mounted on the outside of the guide rail 120, a linear guide rod 132 fixedly mounted inside the bracket 131, a drive slider 133 movably mounted on the outside of the linear guide rod 132, and a limiting rod 134 fixedly mounted inside the bracket 131. The drive slider 133 is movably sleeved on the outside of the limiting rod 134.

[0031] The integrated design of the guide rail 120 and the supporting frame 110 ensures the smoothness of the movement of the multi-angle adjustment component 130 and avoids the mechanism offset caused by vibration. The introduction of the multi-angle adjustment component 130 enables the tooling to have spatial posture adjustment capability, which can adapt to the clamping requirements of different processing characteristics and significantly expand the process adaptability of the tooling. The multi-angle adjustment component 130 adopts the sliding cooperation structure of the bracket 131 and the guide rail 120, and with the dual guiding constraints of the linear guide rod 132 and the limit rod 134, it ensures that the motion trajectory accuracy of the drive slider 133 can be quickly reconstructed according to the processing requirements, which is suitable for multi-process collaborative processing scenarios of complex curved surfaces of aero engines.

[0032] Furthermore, the clamping mechanism 200 also includes a magnetic adsorption chip removal assembly 240 located at the bottom of the self-cleaning chip guide assembly 220, a positioning block 250 that is movably mounted in the groove on the outside of the drive plate 210, a support piece 260 fixedly installed at the bottom of the positioning block 250, a card 270 fixedly installed at the bottom of the support piece 260, a card slot 280 opened at the bottom of the positioning block 250, and a rotating rod 290 fixedly installed at the top of the positioning block 250.

[0033] Among them, the magnetic adsorption chip removal component 240 and the self-cleaning chip guiding component 220 form a three-dimensional chip removal system. Through the synergistic effect of magnetic capture and gravity guidance, omnidirectional waste cleaning is achieved. The linkage mechanism of the positioning block 250, the support plate 260, and the card 270, together with the constraint function of the card slot 280, realizes the rapid positioning and locking of the workpiece. The setting of the rotating rod 290 enables the positioning block 250 to have the ability to rotate and avoid obstacles, which can greatly reduce the auxiliary time when loading and unloading workpieces.

[0034] Preferably, the self-cleaning chip guide assembly 220 includes a fixing block 221 fixedly installed on the outside of the drive plate 210, an inclined surface 222 disposed on the outside of the fixing block 221, and a longitudinal chip guide groove 223 opened in the inner cavity of the fixing block 221 and communicating with the inclined surface 222. The self-cleaning chip guide assembly 220 also includes an anti-slip strip 224 fixedly installed on the top of the fixing block 221, and a chip discharge groove 225 opened at the bottom of the fixing block 221 and communicating with the longitudinal chip guide groove 223.

[0035] The inclined surface 222 of the fixed block 221 is designed to utilize the flow characteristics of the cutting fluid and gravity to allow chips to automatically slide away from the contact area. The longitudinal chip guide groove 223 and the inclined surface 222 form a continuous flow channel, completely eliminating the phenomenon of chips lingering on the positioning surface. It achieves self-cleaning function without additional power input and is suitable for long-term continuous machining under high-pressure cooling conditions. The anti-slip strip 224 prevents the workpiece from sliding by increasing the friction coefficient of the contact surface. Its wear-resistant material selection extends its service life. The through design of the chip removal groove 225 and the longitudinal chip guide groove 223 forms a complete chip removal path, ensuring that chips of different sizes can be efficiently discharged. Through the combination of physical anti-slip and dynamic chip removal, zero-intervention cleaning of the machining process is achieved while maintaining clamping stability.

[0036] Furthermore, the magnetic adsorption chip removal assembly 240 includes a chip collection box 241 movably mounted on the bottom of the fixing block 221, and a limiting groove 242 opened on the top of the chip collection box 241. The magnetic adsorption chip removal assembly 240 also includes a chip blowing pipe 243 fixedly installed on the outside of the chip collection box 241, a connecting pipe head 244 fixedly installed on the outside of the chip blowing pipe 243, and a neodymium magnet 245 placed in the inner cavity of the chip collection box 241.

[0037] The chip collection box 241 adopts a detachable design and can be quickly positioned and installed through the limiting channel 242. Its closed structure prevents secondary pollution. This component, together with the self-cleaning chip guide component 220, forms a waste collection terminal, which concentrates the scattered chips for processing, significantly improves the working environment and reduces the intensity of cleaning operations. It is suitable for chip management of difficult-to-machine materials such as titanium alloys. The chip blowing pipe 243 is connected to the air source through the connecting pipe head 244, which can directionally remove non-magnetic chips and form a composite cleaning system with the neodymium magnet 245.

[0038] In use, after the workpiece is quickly positioned by the positioning block 250 and the slot 280, the drive plate 210 drives the clamping mechanism 200 to complete the clamping. During the processing, the floating anti-chip component 230 dynamically compensates for vibration and chip interference, the self-cleaning chip guide component 220 automatically discharges chips through the inclined surface 222 and the longitudinal chip guide groove 223, the magnetic adsorption chip removal component 240 collects iron chips, and the chip blowing pipe 243 removes non-magnetic chips. After the processing is completed, the rotating rod 290 assists in quickly releasing the workpiece, and the multi-angle adjustment component 130 can be repositioned according to the requirements of the next process.

[0039] In summary, the rigid structure integrating the support frame 110 and the guide rail 120 provides a stable foundation for the multi-angle adjustment component 130, enabling the tooling to adjust its spatial position and orientation. The dual protection system consisting of the self-cleaning chip guide component 220 and the floating chip removal component 230 effectively solves the positioning deviation problem caused by chip accumulation. The magnetic adsorption chip removal component 240, in conjunction with the air blowing system, achieves efficient cleaning of all types of chips, realizing functions such as rapid clamping, precise positioning, and automatic chip removal. This significantly improves the machining accuracy and efficiency of complex aero-engine parts while reducing maintenance costs.

[0040] Example 2 Reference Figure 1 , Figure 2 and Figure 5 This is the second embodiment of the present invention, which differs from the first embodiment in that it provides an optimized structural design for the floating anti-dumping component 230.

[0041] Furthermore, the floating anti-chip assembly 230 includes a hemispherical head positioning pin 231 that is movably inserted into the inner cavity of the fixed block 221, a spring 232 that is movably sleeved on the outside of the hemispherical head positioning pin 231, a protrusion 233 that is fixedly installed at the end of the hemispherical head positioning pin 231, and a trapezoidal groove 234 that is opened in the inner cavity of the fixed block 221.

[0042] Among them, the hemispherical head positioning pin 231 forms a floating support under the action of spring 232. When there is debris interference, it can adaptively retract to eliminate the risk of hard collision. The cooperation between the protrusion 233 and the trapezoidal groove 234 limits the floating stroke, which not only ensures the avoidance function but also prevents excessive displacement, so that the positioning element has the ability to accommodate debris, fundamentally solving the problem that traditional rigid positioning is easily affected by debris.

[0043] When in use, the hemispherical locating pin 231 adjusts its position adaptively under the action of the spring 232 when the workpiece is placed. During the processing, the hemispherical locating pin 231 can float slightly to compensate for processing vibration and thermal deformation. When debris enters the contact surface, the hemispherical locating pin 231 can retract appropriately to avoid hard interference. After processing is completed, the hemispherical locating pin 231 automatically resets under the action of the spring 232.

[0044] In summary, dynamic compensation capability is achieved during the workpiece positioning process, significantly improving processing stability. It effectively solves the technical problem that traditional rigid positioning is susceptible to interference from debris. The structure is simple and reliable, easy to maintain, and suitable for the batch processing needs of high-precision aerospace parts. The elastic floating design extends the service life of the positioning element and reduces maintenance costs.

[0045] Example 3 Reference Figures 1-5This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a method of use, including the aforementioned clamping fixture for machining aero-engine parts, the method comprising the following steps: S1: The workpiece is placed on the hemispherical positioning pin 231 of the floating chip-proof component 230, and the spring 232 adaptively adjusts the positioning gap. S2: The drive plate 210 drives the self-cleaning chip guide assembly 220 to clamp the workpiece, and the chips slide into the longitudinal chip guide groove 223 along the inclined surface 222; S3: The magnetic adsorption chip removal component 240 uses neodymium magnets 245 to adsorb iron chips, and the chip blowing pipe 243 assists in removing residual chips; S4: After processing is completed, the chip collection box 241 is pulled out for cleaning, and the positioning block 250 is reset by the rotating rod 290.

[0046] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0047] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A clamping fixture for machining aero-engine parts, characterized in that: include, The load-bearing mechanism (100) includes a load-bearing frame (110). The clamping mechanism (200) includes a drive plate (210), a self-cleaning chip guide assembly (220) disposed on the outside of the drive plate (210), and a floating anti-chip assembly (230) disposed in the inner cavity of the self-cleaning chip guide assembly (220).

2. The clamping fixture for machining aero-engine parts according to claim 1, characterized in that: The support mechanism (100) also includes a guide rail (120) disposed inside the support frame (110) and a multi-angle adjustment component (130) disposed outside the guide rail (120).

3. The clamping fixture for machining aero-engine parts according to claim 2, characterized in that: The multi-angle adjustment assembly (130) includes a bracket (131) movably mounted on the outside of the guide rail (120), a linear guide rod (132) fixedly mounted on the inside of the bracket (131), a drive slider (133) movably mounted on the outside of the linear guide rod (132), and a limiting rod (134) fixedly mounted on the inside of the bracket (131). The drive slider (133) is movably sleeved on the outside of the limiting rod (134).

4. The clamping fixture for machining aero-engine parts according to claim 3, characterized in that: The clamping mechanism (200) also includes a magnetic adsorption chip removal assembly (240) located at the bottom of the self-cleaning chip removal assembly (220), a positioning block (250) movable and locked in the groove on the outside of the drive plate (210), a support plate (260) fixedly installed at the bottom of the positioning block (250), a card (270) fixedly installed at the bottom of the support plate (260), a card slot (280) opened at the bottom of the positioning block (250), and a rotating rod (290) fixedly installed at the top of the positioning block (250).

5. The clamping fixture for machining aero-engine parts according to claim 4, characterized in that: The self-cleaning chip guide assembly (220) includes a fixed block (221) fixedly installed on the outside of the drive plate (210), an inclined surface (222) disposed on the outside of the fixed block (221), and a longitudinal chip guide groove (223) opened in the inner cavity of the fixed block (221) and communicating with the inclined surface (222).

6. The clamping fixture for machining aero-engine parts according to claim 5, characterized in that: The self-cleaning chip guide assembly (220) also includes an anti-slip strip (224) fixedly installed on the top of the fixed block (221) and a chip discharge groove (225) opened at the bottom of the fixed block (221) and communicating with the longitudinal chip guide groove (223).

7. The clamping fixture for machining aero-engine parts according to claim 6, characterized in that: The floating chip-proof assembly (230) includes a hemispherical head positioning pin (231) movably inserted into the cavity of the fixed block (221), a spring (232) movably sleeved on the outside of the hemispherical head positioning pin (231), a protrusion (233) fixedly installed at the end of the hemispherical head positioning pin (231), and a trapezoidal groove (234) opened in the cavity of the fixed block (221).

8. The clamping fixture for machining aero-engine parts according to claim 7, characterized in that: The magnetic adsorption chip removal assembly (240) includes a chip collection box (241) that is movably mounted at the bottom of the fixed block (221), and a limiting channel (242) opened at the top of the chip collection box (241).

9. The clamping fixture for machining aero-engine parts according to claim 8, characterized in that: The magnetic adsorption chip removal assembly (240) also includes a chip blowing pipe (243) fixedly installed on the outside of the chip collection box (241), a connecting pipe head (244) fixedly installed on the outside of the chip blowing pipe (243), and a neodymium magnet (245) placed in the inner cavity of the chip collection box (241).

10. A method of use, characterized in that: The method of the clamping fixture for machining aero-engine parts, including any one of claims 1 to 9, comprises the following steps: S1: The workpiece is placed on the hemispherical locating pin (231) of the floating chip-proof assembly (230), and the spring (232) adaptively adjusts the positioning gap; S2: The drive plate (210) drives the self-cleaning chip guide assembly (220) to clamp the workpiece, and the chips slide into the longitudinal chip guide groove (223) along the inclined surface (222). S3: The magnetic adsorption chip removal assembly (240) uses neodymium magnets (245) to adsorb iron chips, and the chip blowing pipe (243) assists in removing residual chips; S4: After processing is completed, the chip collection box (241) is pulled out for cleaning, and the positioning block (250) is reset by the rotating rod (290).

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