Numerical control milling machine for machining precision parts

Abstract

The invention provides a numerical control milling machine for precise part machining, and relates to the technical field of numerical control milling machines, the numerical control milling machine comprises a numerical control milling machine body and an adjusting mechanism, the output end of the numerical control milling machine body is provided with a drill bit, and the adjusting mechanism is arranged on the bottom wall of the numerical control milling machine body and comprises a fixing plate; the fixing plate is fixedly connected with the bottom wall of the numerical control milling machine body, a connecting plate is fixedly connected to one side of the fixing plate, a motor is fixedly connected to one side of the connecting plate, a power rod is fixedly connected to the output end of the motor, and an adjusting groove is formed in the position, corresponding to the power rod, of the working plate. And the arc surface of the power rod is in threaded connection with a first moving block. According to the numerical control milling machine, when the precise part is machined through the numerical control milling machine, the precise part can be fixed to the numerical control milling machine through the adjusting mechanism, so that the machining effect of the numerical control milling machine on the precise part can be improved through the adjusting mechanism, and the machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled milling machines, and in particular to a numerically controlled milling machine for machining precision parts. Background Art

[0002] CNC milling machine is a kind of high-precision mechanical processing equipment, which is mainly used to manufacture parts with complex shapes and precise dimensions. CNC milling machine adopts computer numerical control technology, and controls the motion trajectory of the machine tool through the computer to achieve precise milling operation. CNC milling machine is usually used for milling, drilling, cutting, engraving and other processing methods, and can produce parts with complex shapes and high precision requirements.

[0003] The invention with publication number CN111805270A discloses a clamping device for machining planes on a CNC milling machine, and the key points of its technical solution are: it includes a bracket, a workbench and a transmission device, and the workbench is provided with a manual clamping assembly and an electric clamping assembly. The present invention clamps the upper and lower surfaces of a workpiece by the manual clamping assembly on the workbench, and then uses the milling cutter of an external CNC milling machine on the workbench to mill the left and right planes and the front and back planes. After completion, the operator puts the workpiece with the four surfaces milled into the electric clamping assembly for the remaining machining of the upper and lower planes, thereby solving the problem that the traditional clamping device for machining planes on a CNC milling machine in the prior art can only machine the upper and lower surfaces or the left, right, front and back four surfaces of the workpiece, and cannot machine the six planes of the workpiece on a CNC milling machine at the same time, thereby resulting in reduced work efficiency and the need for multiple milling machines to cooperate with each other to machine the six surfaces of the workpiece, thereby increasing enterprise costs.

[0004] Regarding the above-mentioned related content, the following technical defects exist: CNC milling machines for precision parts processing are high-precision mechanical processing equipment, mainly used to manufacture parts with complex shapes and precise dimensions. CNC milling machines use computer numerical control technology, control the motion trajectory of the machine tool through a computer, and achieve precise milling operations through a drill bit. However, when using CNC milling machines, it is found that precision parts processing usually requires high-precision positioning and stability, but the existing clamping of precision parts is manually clamped, and the clamping stability is poor. Precision parts will be displaced or vibrated during the processing, resulting in a decrease in processing accuracy and failure to meet design requirements. In addition, unstable clamping will cause uneven force on precision parts during processing, thereby affecting the surface quality.

[0005] Therefore, it is necessary to provide a new CNC milling machine for precision parts processing to solve the above-mentioned technical problems. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings in the prior art and to provide a CNC milling machine for machining precision parts.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: it includes a CNC milling machine body and an adjusting mechanism, a drill bit is installed at the output end of the CNC milling machine body, an adjusting mechanism is provided on the bottom wall of the CNC milling machine body, the adjusting mechanism includes a fixed plate, the fixed plate is fixedly connected to the bottom wall of the CNC milling machine body, a connecting plate is fixedly connected to one side of the fixed plate, a motor is fixedly connected to one side of the connecting plate, a power rod is fixedly connected to the output end of the motor, an adjusting groove is provided on the working plate at a position corresponding to the power rod, a first moving block is threadedly connected to the arc surface of the power rod, and the first moving block is connected to the adjusting groove The inner wall is slidably connected, one side of the first moving block is rotatably connected to a working plate, the inner wall of the working plate is rotatably connected to a bidirectional screw, both ends of the circular arc surface of the bidirectional screw are threadedly connected to the second moving block, the two second moving blocks are both slidably connected to the inner wall of the working plate, one side of the second moving block is fixedly connected to a clamping plate, the circular arc surface of the power rod is threadedly connected to an adjusting block, the adjusting block is slidably connected to the inner wall of the adjusting groove, one side of the adjusting block is fixedly connected to an electric push rod, the output end of the electric push rod is fixedly connected to a rack, the tooth surface of the rack is meshed with a gear, and one side of the gear is fixedly connected to the working plate.

[0008] By adopting the above technical scheme, a CNC milling machine body for precision parts processing is achieved. It is a high-precision mechanical processing equipment, which is mainly used to manufacture parts with complex shapes and precise sizes. The CNC milling machine body adopts computer numerical control technology, controls the motion trajectory of the machine tool by a computer, and realizes precise milling operations through a drill bit. However, when using the CNC milling machine body, it is found that the processing of precision parts usually requires high-precision positioning and stability, but the existing clamping of precision parts is clamped by manual pressing, and the clamping stability is poor. The precision parts will be displaced or vibrated during the processing, resulting in a decrease in processing accuracy and failure to meet the design requirements. In addition, unstable clamping will cause uneven force on the precision parts during the processing, thereby affecting the surface quality. At this time, the precision parts can be clamped by an adjusting mechanism, so that the processing effect of the CNC milling machine body for processing precision parts can be improved through clamping, and the work intensity of workers can be reduced.

[0009] Preferably, a plurality of anti-skid grooves are provided at one end of the arc surface of the bidirectional screw, and the plurality of anti-skid grooves are evenly distributed on the bidirectional screw.

[0010] By adopting this preferred solution, when the bidirectional screw is rotated in the working plate, the anti-skid groove provided on the bidirectional screw can increase the rotation speed of the bidirectional screw in the working plate.

[0011] Preferably, protrusions are fixedly connected to both sides of the first moving block, and guide grooves are provided at positions of the adjustment groove corresponding to the two protrusions, and the two protrusions are slidably connected to the inner walls of the two guide grooves respectively.

[0012] By adopting the above technical solution, when the first moving block moves in the adjusting groove, the protrusion installed on the first moving block can slide in the guiding groove, thereby improving the sliding effect of the first moving block in the adjusting groove.

[0013] Preferably, friction pads are fixedly connected to the sides of the two clamping plates that are close to each other, and the cross-section of the friction pads is arc-shaped.

[0014] By adopting the above technical solution, when two clamps are used to clamp precision parts, the friction pads installed on the clamps can improve the stability of the clamps in clamping the precision parts.

[0015] Preferably, a storage mechanism is provided on one side of the CNC milling machine body, and the storage mechanism includes a support frame, the support frame is fixedly connected to one side of the CNC milling machine body, the inner wall of the support frame is slidably connected with a placement box, the inner wall of the placement box is fixedly connected with a plurality of partitions, and the plurality of partitions are evenly distributed on the placement box, one side of the support frame is fixedly connected with a fixed block, the inner wall of the fixed block is rotatably connected with an adjusting rod, the arc surface of the adjusting rod is fixedly connected with a clamping block, both ends of the arc surface of the adjusting rod are slidably connected with a first coil spring, the two ends of the first coil spring are respectively fixedly connected to the clamping block and the side wall of the fixed frame, a slot is provided at the position of the placement box corresponding to the clamping block, and the clamping block is clamped with the slot.

[0016] By adopting the above technical solution, it is achieved that after the precision parts are processed by the CNC milling machine body, the processed precision parts can be stored through the storage mechanism, so that the subsequent workers can carry out centralized transportation of the processed precision parts through the storage mechanism, thereby improving the efficiency of subsequent workers in carrying compact parts.

[0017] Preferably, a handle is fixedly connected to a side of the placement box away from the CNC milling machine body, and an auxiliary groove is provided on the side of the handle.

[0018] By adopting the above technical solution, when the placement box is transported, the handle installed on the placement box can quickly transport the placement box, and the auxiliary groove can improve the stability of the contact between the worker's hand and the placement box.

[0019] Preferably, a protection plate is fixedly connected to one end of the CNC milling machine body close to the support frame, and the cross-sectional dimension of the protection plate is the same as the cross-sectional dimension of the placement box.

[0020] By adopting the above technical solution, when the placement box contacts the bottom wall of the support frame, the protective pad installed on the placement box can prevent the two from directly contacting and causing wear.

[0021] Preferably, a protective mechanism is provided on the side of the CNC milling machine body, and the protective mechanism includes two connecting cylinders, which are respectively fixedly connected to the two sides of the CNC milling machine body, and a connecting rod is rotatably passed through the inner wall of the connecting cylinder, and the two ends of the arc surface of the connecting rod are fixedly connected to the same protective plate, and the two ends of the arc surface of the connecting rod are both sleeved with a second coil spring, and the two ends of the second coil spring are respectively fixedly connected to the side wall of the protective plate and the connecting cylinder, one side of one of the protective plates is fixedly connected to a metal block, and one side of the other protective plate is fixedly connected to a plurality of magnetic blocks, and the metal block is adsorbed to the plurality of magnetic blocks.

[0022] By adopting the above technical solution, when the CNC milling machine body is processing precision parts, the processing space of the entire CNC milling machine body can be protected by the protective mechanism, thereby improving the safety of the CNC milling machine body during processing and preventing processing debris from splashing into the workers' eyes during processing, thereby affecting the workers' personal safety.

[0023] Preferably, one end of the protective plate away from the CNC milling machine body is fixedly connected to a pressing block, and one side of the pressing block is fixedly connected to an auxiliary block.

[0024] By adopting the above technical solution, when the angle of the protective plate needs to be rotated, the protective plate can be rotated by the pressing block and the auxiliary block installed on the protective plate to increase the rotation speed.

[0025] Preferably, the protective plate is an acrylic plate.

[0026] By adopting the above technical solution, the entire processing position is protected by a protective plate made of acrylic material, and workers can view the effect of the CNC milling machine body processing precision parts through the protective plate.

[0027] Compared with the prior art, the advantages and positive effects of the present invention are: 1. In the present invention, by setting an adjustment mechanism, when a precision component is processed by a CNC milling machine, the adjustment mechanism can be used to fix the precision component on the CNC milling machine, so that the adjustment mechanism can improve the processing effect of the CNC milling machine on the precision component and improve the processing efficiency.

[0028] 2. In the present invention, by providing a storage mechanism, after the precision parts are processed using a CNC milling machine, the processed precision parts can be placed in the storage mechanism, so that the precision parts can be temporarily stored through the storage mechanism, thereby improving the efficiency of subsequent workers in carrying the precision parts.

[0029] 3. In the present invention, by setting a protective mechanism, when a CNC milling machine is used to process precision parts, the protective mechanism can be installed on one side of the CNC milling machine. The protective mechanism can protect the debris generated by processing the precision parts, thereby preventing the debris from splashing into the eyes of the workers and causing damage to the workers' health. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The present invention provides a three-dimensional structural schematic diagram of a CNC milling machine for machining precision parts; Figure 2 for Figure 1 Schematic diagram of some structures; Figure 3 The present invention provides a structural schematic diagram of an adjustment mechanism of a CNC milling machine for machining precision parts; Figure 4 The present invention provides an enlarged structural schematic diagram of an adjustment mechanism of a CNC milling machine for machining precision parts; Figure 5 for Figure 4 A magnified image of point A; Figure 6 A partial structural schematic diagram of an adjustment mechanism of a CNC milling machine for machining precision parts is provided for the present invention; Figure 7 The present invention provides a partial structural schematic diagram of an adjustment mechanism of a CNC milling machine for machining precision parts; Figure 8 The present invention provides a schematic structural diagram of a storage mechanism of a CNC milling machine for machining precision parts; Fig. 9 for Figure 8 The enlarged view of point B; Fig.10 A partial structural schematic diagram of a storage mechanism of a CNC milling machine for machining precision parts proposed by the present invention; Fig.11 The present invention provides a structural schematic diagram of a protection mechanism of a CNC milling machine for machining precision parts; Fig.12 The present invention provides a partial structural schematic diagram of a protection mechanism of a CNC milling machine for machining precision parts.

[0031] Legend: 1. CNC milling machine body; 2. Adjustment mechanism; 201. Fixing plate; 202. Connecting plate; 203. Motor; 204. Power rod; 205. Adjustment slot; 206. First moving block; 207. Working plate; 208. Bidirectional screw; 209. Second moving block; 210. Clamp; 211. Adjustment block; 212. Electric push rod; 213. Rack; 214. Gear; 215. Friction pad; 216. Anti-skid slot; 217. Bump; 218. Guide Guide groove; 3. Storage mechanism; 301. Support frame; 302. Placement box; 303. Partition; 304. Fixed block; 305. Adjustment rod; 306. Card block; 307. First coil spring; 308. Card groove; 309. Handle; 310. Auxiliary groove; 311. Protection plate; 4. Protection mechanism; 41. Connecting tube; 42. Connecting rod; 43. Second coil spring; 44. Protection plate; 45. Metal block; 46. Magnetic block; 47. Pressing block; 48. Auxiliary block; 5. Drill bit. DETAILED DESCRIPTION

[0032] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from the description. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0034] Embodiment 1, as Figure 1-12 As shown, the present invention provides a CNC milling machine for processing precision parts, including a CNC milling machine body 1 and an adjusting mechanism 2, a drill bit 5 is installed at the output end of the CNC milling machine body 1, the adjusting mechanism 2 is provided on the bottom wall of the CNC milling machine body 1, a storage mechanism 3 is provided on one side of the CNC milling machine body 1, and a protective mechanism 4 is provided on the side of the CNC milling machine body 1.

[0035] The specific settings and functions of the adjustment mechanism 2, storage mechanism 3 and protection mechanism 4 are described in detail below.

[0036] like Figure 3 - Figure 7As shown, the adjustment mechanism 2 includes a fixed plate 201, which can support the entire adjustment mechanism 2. The adjustment mechanism 2 is connected to the bottom wall of the CNC milling machine body 1. A connecting plate 202 is installed on one side of the fixed plate 201, and a motor 203 is installed on one side of the connecting plate 202. A power rod 204 is installed on the output end of the motor 203. When the motor 203 is started, the power rod 204 can be driven to rotate through the output end. An adjustment groove 205 is opened at the position of the working plate 207 corresponding to the power rod 204. The power rod 204 can rotate in the adjustment groove 205. A first moving block 206 is installed on the arc surface of the power rod 204. The first moving block 206 can slide horizontally on the inner wall of the adjusting groove 205. The working plate 207 is installed on one side of the first moving block 206. 07, a bidirectional screw 208 is installed on the inner wall of the working plate 207, and the bidirectional screw 208 can rotate on the inner wall of the working plate 207. Second moving blocks 209 are installed at both ends of the circular arc surface of the bidirectional screw 208, and a clamping plate 210 is fixedly connected to one side of the second moving block 209. The second moving block 209 can slide in the working plate 207 driven by the bidirectional screw 208, and the movement of the second moving block 209 can drive the clamping plate 210 to move. An adjusting block 211 is installed on the circular arc surface of the power rod 204, and the adjusting block 211 is slidably connected to the inner wall of the adjusting groove 205. An electric push rod 212 is installed on one side of the adjusting block 211, and a rack 213 is fixedly connected to the output end of the electric push rod 212. The movement of the electric push rod 212 can drive the rack 213 to move. The tooth surface of 3 is meshed with a gear 214, and one side of the gear 214 is connected to the working plate 207. The CNC milling machine body 1 for precision parts processing is a high-precision mechanical processing equipment, which is mainly used to manufacture parts with complex shapes and precise dimensions. The CNC milling machine body 1 adopts computer numerical control technology, controls the motion trajectory of the machine tool through a computer, and realizes precise milling operations through a drill 5. However, when using the CNC milling machine body 1, it is found that precision parts processing usually requires high-precision positioning and stability, but the existing clamping of precision parts is manually pressed for clamping, and the clamping stability is poor. The precision parts will be displaced or vibrated during the processing, resulting in a decrease in processing accuracy and failure to meet the design requirements. In addition, unstable clamping will cause precision Parts are subjected to uneven force during the processing, which affects the surface quality. At this time, the precision parts can be clamped by the adjustment mechanism 2, so that the processing effect of the precision parts processed by the CNC milling machine body 1 can be improved through clamping, and the work intensity of the workers can be reduced. A plurality of anti-skid grooves 216 are provided at one end of the arc surface of the bidirectional screw 208, and the plurality of anti-skid grooves 216 are evenly distributed on the bidirectional screw 208. When the bidirectional screw 208 is rotated in the working plate 207, the anti-skid grooves 216 provided on the bidirectional screw 208 can increase the rotation speed of the bidirectional screw 208 in the working plate 207. Both sides of the first moving block 206 are fixedly connected with protrusions 217, and the positions of the adjustment grooves 205 corresponding to the two protrusions 217 are provided with guide grooves 218.The two protrusions 217 are respectively slidably connected to the inner walls of the two guide grooves 218. When the first moving block 206 moves in the adjustment groove 205, the protrusions 217 installed on the first moving block 206 can slide in the guide groove 218, thereby improving the sliding effect of the first moving block 206 in the adjustment groove 205. The two clamping plates 210 are fixedly connected to the side close to each other with a friction pad 215. The cross section of the friction pad 215 is arc-shaped. When the two clamping plates 210 clamp precision parts, the friction pad 215 installed on the clamping plates 210 can improve the stability of the clamping plates 210 clamping precision parts.

[0037] like Figure 8 - Fig.10 As shown, the storage mechanism 3 includes a support frame 301, which is connected to one side of the CNC milling machine body 1. The support frame 301 can support the entire storage mechanism 3. A placement box 302 is installed on the inner wall of the support frame 301. A plurality of partitions 303 are fixedly connected to the inner wall of the placement box 302. The partitions 303 can evenly divide the internal space of the placement box 302. A fixed block 304 is installed on one side of the support frame 301. The inner wall of the fixed block 304 is rotatably connected to an adjustable Rod 305, the arc surface of the adjusting rod 305 is installed with a clamping block 306, both ends of the arc surface of the adjusting rod 305 are slidably connected with a first coil spring 307, the two ends of the first coil spring 307 are respectively connected with the clamping block 306 and the side wall of the fixed frame, and the position of the placement box 302 corresponding to the clamping block 306 is provided with a clamping groove 308, the clamping block 306 is clamped with the clamping groove 308, and the clamping block 306 is clamped with the clamping groove 308, and the storage box can be fixed on the support frame 301, and the storage box can be fixed on the support frame 301 by the CNC milling machine body. After a pair of precision parts are processed, the processed precision parts can be stored through the storage mechanism 3, so that the storage through the storage mechanism 3 is convenient for subsequent workers to carry the processed precision parts in a centralized manner, thereby improving the efficiency of subsequent workers in carrying compact parts. A handle 309 is fixedly connected to the side of the placement box 302 away from the CNC milling machine body 1, and an auxiliary groove 310 is opened on the side of the handle 309. When the placement box 302 is carried, the handle 309 installed on the placement box 302 can quickly carry the placement box 302, and the auxiliary groove 310 can improve the stability of the contact between the worker's hand and the placement box 302. A protective plate 311 is fixedly connected to one end of the CNC milling machine body 1 close to the support frame 301. The cross-sectional size of the protective plate 311 is the same as that of the placement box 302. When the placement box 302 contacts the bottom wall of the support frame 301, the protective pad installed on the placement box 302 can prevent the two from directly contacting and causing wear.

[0038] like Fig.11 and Fig.12As shown, the protection mechanism 4 includes two connecting cylinders 41, and the two connecting cylinders 41 are respectively connected to the two sides of the CNC milling machine body 1. A connecting rod 42 is rotatably penetrated through the inner wall of the connecting cylinder 41, and the same protective plate 44 is installed at both ends of the arc surface of the connecting rod 42. The arc surface of the connecting rod 42 is sleeved with a second coil spring 43 at both ends, and the two ends of the second coil spring 43 are respectively connected to the side wall of the protective plate 44 and the connecting cylinder 41. A metal block 45 is installed on one side of one of the protective plates 44, and a plurality of magnetic blocks 46 are installed on one side of the other protective plate 44. The metal block 45 is adsorbed with the plurality of magnetic blocks 46. When the CNC milling machine body 1 is processing precision parts, the processing of the entire CNC milling machine body 1 can be controlled by the protection mechanism 4. The protective plate 44 is provided with a protective cover 47, and a protective cover 48 is provided on one side of the protective cover 44. When the protective cover 44 needs to be rotated, the protective cover 44 can be rotated by the protective cover 47 and the auxiliary block 48 installed on the protective cover 44 to increase the rotation speed. The protective cover 44 is an acrylic plate. When the acrylic protective cover 44 protects the entire processing position, the worker can view the processing effect of the CNC milling machine body 1 on the precision parts through the protective cover 44.

[0039] The overall working principle is that the precision parts are placed on the working plate 207, and the bidirectional screw 208 can be rotated at this time. The rotation of the bidirectional screw 208 will drive the second moving block 209 to slide on the inner wall of the working plate 207, so that the two clamping plates 210 can be driven by the second moving block 209 to move toward the side close to each other. At this time, the precision parts can be fixed on the working plate 207 through the clamping plate 210. At this time, the precision parts can be processed by the drill bit 5 of the CNC milling machine body 1. When the processing position of the surface of the precision parts needs to be switched, the motor 203 installed on the connecting plate 202 can be started. The movement of the motor 203 will drive the power rod 204 to rotate in the adjusting groove 205. The movement of the power rod 204 will drive the working plate 207 and the adjusting block 211 to move, and then the electric push rod 212 installed on the adjusting block 211 is started. The movement of the push rod 212 will drive the rack 213 to move, and the movement of the rack 213 will drive the gear 214 to move on the working plate 207. At this time, the working plate 207 can be driven to rotate at an angle, so that the processing position of the precision parts can be adjusted. When the bidirectional screw 208 is rotated in the working plate 207, the anti-slip groove 216 provided on the bidirectional screw 208 can increase the rotation speed of the bidirectional screw 208 in the working plate 207. When the first moving block 206 moves in the adjusting groove 205, the protrusion 217 installed on the first moving block 206 can slide in the guide groove 218, thereby improving the sliding effect of the first moving block 206 sliding in the adjusting groove 205. When the two clamps 210 clamp the precision parts, the friction pad 215 installed on the clamp 210 can improve the stability of the clamp 210 in clamping the precision parts.

[0040] The card block 306 is rotated in the fixed block 304, and the movement of the card block 306 drives the first coil spring 307 to deform. At this time, the placement box 302 can be placed in the support frame 301, and the guide groove 218 provided on the placement box 302 is aligned with the position of the card block 306, and the card block 306 can be released. The coil spring reset can drive the card block 306 to engage with the card groove 308, and the card groove 308 can contact the card block 306, so that the placement box 302 can be fixed in the support frame 301, and the placement box 302 can be placed in the placement box 302. The installed partition 303 can divide the internal space of the placement box 302, so as to facilitate the subsequent separation for temporary storage of precision parts. When the placement box 302 is transported, the handle 309 installed on the placement box 302 can quickly transport the placement box 302, and the auxiliary groove 310 can improve the stability of the contact between the worker's hand and the placement box 302. When the placement box 302 contacts the bottom wall of the support frame 301, the protective pad installed on the placement box 302 can prevent the two from direct contact and wear.

[0041] By rotating the protective plate 44 on the side of the CNC milling machine body 1, the movement of the protective plate 44 will drive the connecting rod 42 to rotate in the connecting tube 41. At this time, the protective plate 44 can move in the direction of the drill bit 5. The movement of the protective plate 44 will drive the second coil spring 43 to deform. At this time, the metal block 45 installed on one of the protective plates 44 is in contact with the magnetic block 46 installed on the other protective plate 44. The metal block 45 and the magnetic block 46 can be adsorbed to fix the angles of the two protective plates 44 on one side of the CNC milling machine body 1, so that the processing range of the CNC milling machine body 1 can be protected by the protective plate 44. When the angle of the protective plate 44 needs to be rotated, the pressing block 47 and the auxiliary block 48 installed on the protective plate 44 can be used to rotate the protective plate 44 to increase the rotation speed. When the acrylic protective plate 44 protects the entire processing position, the worker can view the effect of the CNC milling machine body 1 on the processing of precision parts through the protective plate 44.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A CNC milling machine for machining precision parts, comprising a CNC milling machine body (1) and an adjustment mechanism (2), characterized in that: A drill bit (5) is installed at the output end of the CNC milling machine body (1); an adjustment mechanism (2) is provided on the bottom wall of the CNC milling machine body (1); the adjustment mechanism (2) comprises a fixed plate (201); the fixed plate (201) is fixedly connected to the bottom wall of the CNC milling machine body (1); a connecting plate (202) is fixedly connected to one side of the fixed plate (201); a motor (203) is fixedly connected to one side of the connecting plate (202); a power rod (204) is fixedly connected to the output end of the motor (203); an adjustment groove (205) is provided on the working plate (207) at a position corresponding to the power rod (204); a first moving block (206) is threadedly connected to the circular arc surface of the power rod (204); the first moving block (206) is slidably connected to the inner wall of the adjustment groove (205); one side of the first moving block (206) is rotated A working plate (207) is connected, the inner wall of the working plate (207) is rotatably connected to a bidirectional screw (208), both ends of the circular arc surface of the bidirectional screw (208) are threadedly connected to second moving blocks (209), the two second moving blocks are slidably connected to the inner wall of the working plate (207), one side of the second moving block (209) is fixedly connected to a clamping plate (210), the circular arc surface of the power rod (204) is threadedly connected to an adjustment block (211), the adjustment block (211) is slidably connected to the inner wall of the adjustment groove (205), one side of the adjustment block (211) is fixedly connected to an electric push rod (212), the output end of the electric push rod (212) is fixedly connected to a rack (213), the tooth surface of the rack (213) is meshed with a gear (214), and one side of the gear (214) is fixedly connected to the working plate (207).

2. A CNC milling machine for precision parts processing according to claim 1, characterized in that: A plurality of anti-slip grooves (216) are provided at one end of the circular arc surface of the bidirectional screw rod (208), and the plurality of anti-slip grooves (216) are evenly distributed on the bidirectional screw rod (208).

3. The CNC milling machine for precision parts processing according to claim 1, characterized in that: Both sides of the first moving block (206) are fixedly connected with protrusions (217), and the adjustment groove (205) is provided with guide grooves (218) at positions corresponding to the two protrusions (217), and the two protrusions (217) are slidably connected to the inner walls of the two guide grooves (218) respectively.

4. The CNC milling machine for precision parts processing according to claim 1, characterized in that: The two clamping plates (210) are both fixedly connected to one side thereof that is close to each other with a friction pad (215), and the cross section of the friction pad (215) is arc-shaped.

5. The CNC milling machine for precision parts processing according to claim 1, characterized in that: A storage mechanism (3) is provided on one side of the CNC milling machine body (1), the storage mechanism (3) comprising a support frame (301), the support frame (301) being fixedly connected to one side of the CNC milling machine body (1), a placement box (302) being slidably connected to the inner wall of the support frame (301), a plurality of partitions (303) being fixedly connected to the inner wall of the placement box (302), the plurality of partitions (303) being evenly distributed on the placement box (302), and a fixed block (303) being fixedly connected to one side of the support frame (301). 4), the inner wall of the fixed block (304) is rotatably connected to an adjusting rod (305), the arc surface of the adjusting rod (305) is fixedly connected to a clamping block (306), both ends of the arc surface of the adjusting rod (305) are slidably connected to a first coil spring (307), the two ends of the first coil spring (307) are respectively fixedly connected to the clamping block (306) and the side wall of the fixed frame, the placement box (302) is provided with a clamping groove (308) at a position corresponding to the clamping block (306), and the clamping block (306) is clamped with the clamping groove (308).

6. A CNC milling machine for precision parts processing according to claim 5, characterized in that: A handle (309) is fixedly connected to the side of the placement box (302) away from the CNC milling machine body (1), and an auxiliary groove (310) is provided on the side of the handle (309).

7. The CNC milling machine for precision parts processing according to claim 5, characterized in that: A protective plate (311) is fixedly connected to one end of the CNC milling machine body (1) close to the support frame (301); the cross-sectional dimensions of the protective plate (311) are the same as those of the placement box (302).

8. The CNC milling machine for precision parts processing according to claim 1, characterized in that: A protective mechanism (4) is provided on the side of the CNC milling machine body (1), and the protective mechanism (4) comprises two connecting cylinders (41), the two connecting cylinders (41) are respectively fixedly connected to the two sides of the CNC milling machine body (1), a connecting rod (42) is rotatably penetrated through the inner wall of the connecting cylinder (41), the two ends of the arc surface of the connecting rod (42) are fixedly connected to the same protective plate (44), the two ends of the arc surface of the connecting rod (42) are sleeved with a second coil spring (43), the two ends of the second coil spring (43) are respectively fixedly connected to the side wall of the protective plate (44) and the connecting cylinder (41), one side of one of the protective plates (44) is fixedly connected to a metal block (45), and the other side of the protective plate (44) is fixedly connected to a plurality of magnetic blocks (46), and the metal block (45) is attracted to the plurality of magnetic blocks (46).

9. A CNC milling machine for precision parts processing according to claim 8, characterized in that: One end of the protection plate (44) away from the CNC milling machine body (1) is fixedly connected to a pressing block (47), and one side of the pressing block (47) is fixedly connected to an auxiliary block (48).

10. The CNC milling machine for precision parts processing according to claim 8, characterized in that: The protective plate (44) is an acrylic plate.

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