Double-head multi-spindle drilling, milling and grinding combined machine tool

By designing a follow-up cleaning mechanism on a dual-head multi-spindle drilling, milling, and grinding composite machining tool, and utilizing a combination of brush rods and spray nozzles, automated waste chip cleaning is achieved. This solves the problems of existing technologies where waste chip cleaning affects processing results and manual cleaning is difficult, thereby improving the cleanliness and safety of the processing environment.

CN121491748APending Publication Date: 2026-02-10FOSHAN SHUNDE XIN YUNYANG PRECISION MACHINERY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202511989926.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-26
Publication Date
2026-02-10

AI Technical Summary

Technical Problem

Existing composite machining tools require cleaning waste chips during machining, which affects the machining effect and is difficult and risky to do manually.

Method used

A dual-head multi-spindle drilling, milling, and grinding composite machining tool was designed, equipped with a follow-up cleaning mechanism, including a cleaning mounting box, brush rods, spray nozzles, and a transmission system. The brush rods are driven by a motor to rotate and slide for cleaning, thereby achieving automated waste removal.

Benefits of technology

It enables automated waste removal during processing, reducing cleaning difficulty and risks, and improving the cleanliness and efficiency of the processing environment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121491748A_ABST
    Figure CN121491748A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of combined machining tools, in particular to a double-head multi-spindle drilling, milling and grinding combined machining tool which solves the problems that when an existing combined machining tool is used for machining, the machining effect is easily affected when waste chips are cleaned, and manual cleaning is large in difficulty and high in risk, and the double-head multi-spindle drilling, milling and grinding combined machining tool comprises a follow-up cleaning mechanism. A follow-up cleaning mechanism is installed at the upper end of the base, a double-head machining mechanism is installed on the outer side of the follow-up cleaning mechanism, a protective material containing mechanism is installed on the outer side of the double-head machining mechanism, the follow-up cleaning mechanism comprises a cleaning installation box, a braking unit is installed at one end corner of the cleaning installation box, and a follow-up unit is installed at the upper end of the cleaning installation box. A multi-direction flow dividing base is fixedly installed on the inner side of the upper end of the cleaning installation box, a liquid injection pipe is installed on the upper end face of the multi-direction flow dividing base, and a plurality of spraying nozzles are fixedly installed on the lower end face of the multi-direction flow dividing base. According to the follow-up cleaning device, follow-up cleaning is conducted in the sliding process of the machine tool, and therefore interference to machining can be avoided while efficient cleaning is conducted.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of composite machining technology, specifically a dual-head multi-spindle drilling, milling, and grinding composite machining tool. Background Technology

[0002] Dual-head multi-spindle technology refers to an advanced manufacturing solution that integrates two or more spindle units on the same machine tool, enabling simultaneous or time-sharing machining of workpieces. This design aims to overcome the efficiency bottleneck of traditional single-spindle equipment. Dual spindles can simultaneously process both ends or sides of a workpiece, reducing the number of clamping operations. For example, in the machining of automotive connecting rods, a single dual-head milling machine can complete multiple processes such as end milling and drilling, and it is widely used in the automotive, aerospace, new energy, woodworking, and general machinery industries.

[0003] Existing composite machining tools are prone to problems with cleaning up waste chips during machining, which can affect the machining effect. Moreover, manual cleaning is difficult and risky. Therefore, they do not meet the current needs. In response, we propose a dual-head multi-spindle drilling, milling and grinding composite machining tool. Summary of the Invention

[0004] The purpose of this invention is to provide a dual-head multi-spindle drilling, milling, and grinding composite machining tool to solve the problems mentioned in the background art, where cleaning waste chips during machining can easily affect the machining effect, and manual cleaning is difficult and risky.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dual-head multi-spindle drilling, milling, and grinding composite machining tool, comprising a follow-up cleaning mechanism, a dual-head machining mechanism mounted on the outer side of the follow-up cleaning mechanism, a protective material placement mechanism mounted on the outer side of the dual-head machining mechanism, the follow-up cleaning mechanism comprising a cleaning mounting box, a braking unit mounted on one end corner of the cleaning mounting box, a follow-up unit mounted on the upper end of the cleaning mounting box, a multi-directional flow divider fixedly mounted on the inner side of the upper end of the cleaning mounting box, an injection pipe mounted on the upper end face of the multi-directional flow divider, multiple spray nozzles fixedly mounted on the lower end face of the multi-directional flow divider, two swing plates rotatably connected to the inner side of the bottom end of the cleaning mounting box, two brush rods mounted between the two swing plates, a drive shaft fixedly mounted on the inner side of the brush rods, a second transmission gearbox rotatably connected to the middle of one of the swing plates, and a second transmission motor fixedly mounted on one side of the second transmission gearbox.

[0006] Preferably, the protective material placement mechanism includes a protective shell, a conical smoke hood fixedly installed at the upper end of the protective shell, two inspection doors rotatably connected to both sides of the protective shell, two material conveying doors rotatably connected to the front end of the protective shell, a material conveying unit installed on the inner side of the protective shell, the material conveying unit including a material conveying slide rail, the material conveying slide rail being fixedly installed to the bottom end of the protective shell, a material placement platform slidably connected to the upper end surface of the material conveying slide rail, and two clamping seats slidably connected to the upper end surface of the material placement platform.

[0007] Preferably, the follower unit includes a transmission screw, with connecting sleeves installed on the outer sides of both ends of the transmission screw, a first transmission gearbox installed on the outer side of the middle part of the transmission screw, and a first transmission motor fixedly installed on one side of the first transmission gearbox.

[0008] Preferably, the braking unit consists of an electric push rod and an anti-slip tooth block. The electric push rod is fixedly connected to one end corner of the cleaning and mounting box. An anti-slip tooth block is fixedly installed at the output end of the electric push rod. The lower end face of the anti-slip tooth block is in contact with the inner wall of the bottom of the protective shell.

[0009] Preferably, the dual-head machining mechanism includes two first guide rails, with a mounting carriage slidably connected to the upper end faces of the two first guide rails. Two first linear modules are mounted on the rear end faces of the mounting carriages. Second guide rails are slidably connected to the outer sides of the two first linear modules. Two machining units are mounted on the rear end faces of the second guide rails. Each machining unit includes a second linear module. A rotary seat is rotatably connected to the rear end face of the second linear module. A third linear module is fixedly mounted on the rear end face of the rotary seat. A tool drive box is slidably connected to the outer side of the third linear module. A tool mounting seat is rotatably connected to the bottom end of the tool drive box.

[0010] Preferably, the two processing units are symmetrically installed relative to the second guide rail. Both the first linear module and the second linear module are provided with a lead screw and a slider. The slider and the lead screw are connected by threads. Both ends of the second guide rail are fixedly connected to the sliders in the two first linear modules.

[0011] Preferably, the cleaning and mounting box is slidably connected to two connecting sleeves, the two connecting sleeves are symmetrically installed relative to the transmission screw, the two ends of the transmission screw are provided with external threads with opposite directions, and the transmission screw is connected to the two connecting sleeves by threads.

[0012] Preferably, both the first and second transmission gearboxes have gear sets on their inner sides. The transmission screw and the output end of the first and second transmission motors are connected to one of the swing connecting plates via the gear sets. The first transmission gearbox is fixedly connected to the cleaning and installation box.

[0013] Preferably, the bottom end of the injection tube passes through the cleaning and installation box and is fixedly connected to the multi-directional diversion seat, and the injection tube is connected to multiple spray nozzles through the multi-directional diversion seat.

[0014] Preferably, the two ends of the drive shaft are rotatably connected to the swing connecting plates, the two swing connecting plates are symmetrically installed relative to the middle of the swing connecting plates, and the outer surface of the brush rod is provided with a brush.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention enables simultaneous processing of workpieces through two processing units. The electric push rod drives the anti-slip tooth block to move down and contact the inner wall of the bottom of the protective shell, thereby braking the cleaning installation box and keeping it stable. The material placement platform moves out of the protective shell along the material conveying slide rail and resets the installation slide. The first transmission motor drives the transmission screw to rotate through the gear set in the first transmission gearbox. The transmission screw then drives the two connecting sleeves to slide in opposite directions on the upper surface of the cleaning installation box and insert them into the inner side of the bottom of the installation slide, maintaining the fixed connection between the cleaning installation box and the installation slide. The installation slide slides along the first guide rail again, so that the cleaning installation box can move with the installation slide through the connecting sleeves. 2. In this invention, the second drive motor drives the swing plate to rotate through the gear set in the second drive gearbox. The swing plate then drives the two drive shafts to rotate and adjust. At this time, the two drive shafts drive the brush rods to adjust to opposite heights. Thus, during the movement of the mounting carriage, one of the drive shafts drives the brush rod to rotate and clean the inner wall of the bottom of the protective shell. This effectively maintains the cleanliness of the processing environment and reduces the difficulty and risk of cleaning. The two brush rods can clean alternately during the repeated rotation of the swing plate, reducing cleaning pressure and improving cleaning effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the dual-head processing mechanism of the present invention; Figure 3 This is a schematic diagram of the installation structure of the follow-up cleaning mechanism of the present invention; Figure 4 This is a schematic diagram of the follow-up cleaning mechanism of the present invention; Figure 5 This is a cross-sectional structural schematic diagram of the follow-up cleaning mechanism of the present invention; Figure 6 This is a schematic diagram of the installation structure of the brush rod of the present invention.

[0017] In the diagram: 1. Protective material placement mechanism; 101. Protective outer shell; 102. Inspection door; 103. Material conveying sealing door; 104. Conical fume hood; 105. Material conveying unit; 106. Material conveying slide rail; 107. Material placement platform; 108. Clamping seat; 2. Double-headed processing mechanism; 201. First guide rail; 202. Mounting slide; 203. Second guide rail; 204. Processing unit; 205. First linear module; 206. Second linear module; 207. Rotary seat; 208. Third linear module; 2 09. Blade drive box; 210. Blade mounting base; 3. Follow-up cleaning mechanism; 301. Cleaning mounting box; 302. Electric push rod; 303. Anti-slip tooth block; 304. Liquid injection pipe; 305. First transmission gearbox; 306. First transmission motor; 307. Transmission screw; 308. Connecting sleeve; 309. Multi-directional flow divider; 310. Spray nozzle; 311. Second transmission motor; 312. Second transmission gearbox; 313. Transmission shaft; 314. Brush rod; 315. Swing connecting plate. Detailed Implementation

[0018] 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.

[0019] The first drive motor 306 (model GV50-3.7KW-60-S) and the second drive motor 311 (model KOM7080) mentioned in this invention can both be obtained from the market or through private customization.

[0020] Please see Figure 1 and Figure 2 An embodiment of the present invention provides a dual-head multi-spindle drilling, milling, and grinding composite machining tool, including a follow-up cleaning mechanism 3, a dual-head machining mechanism 2 installed on the outside of the follow-up cleaning mechanism 3, a protective material placement mechanism 1 installed on the outside of the dual-head machining mechanism 2, the protective material placement mechanism 1 including a protective shell 101, a conical fume hood 104 fixedly installed on the upper end of the protective shell 101, two inspection doors 102 rotatably connected to both sides of the protective shell 101, two material conveying doors 103 rotatably connected to the front end of the protective shell 101, a material conveying unit 105 installed on the inner side of the protective shell 101, the material conveying unit 105 including a material conveying slide rail 106, the material conveying slide rail 106 fixedly installed to the bottom end of the protective shell 101, a material placement platform 107 slidably connected to the upper end surface of the material conveying slide rail 106, two clamping seats 108 slidably connected to the upper end surface of the material placement platform 107, and a workpiece placed on the material placement platform 107 and fixedly clamped by the two clamping seats 108.

[0021] Please see Figure 2 and Figure 3The dual-head processing mechanism 2 includes two first guide rails 201. A mounting carriage 202 is slidably connected to the upper end face of the two first guide rails 201. Two first linear modules 205 are mounted on the rear end face of the mounting carriage 202. Second guide rails 203 are slidably connected to the outer sides of each of the two first linear modules 205. Two processing units 204 are mounted on the rear end face of the second guide rails 203. Each processing unit 204 includes a second linear module 206. A rotating seat 207 is rotatably connected to the rear end face of the second linear module 206. The rear end face of the rotating seat 207 is fixedly mounted on... The system is equipped with a third linear module 208, with a tool drive box 209 slidably connected to the outer side of the third linear module 208. A tool mounting seat 210 is rotatably connected to the bottom end of the tool drive box 209. The two processing units 204 are symmetrically installed relative to the second guide rail 203. The first linear module 205 and the second linear module 206 are both equipped with a lead screw and a slider. The slider and the lead screw are connected by threads. Both ends of the second guide rail 203 are fixedly connected to the sliders in the two first linear modules 205. The two processing units 204 can perform synchronous processing operations on the workpiece.

[0022] Please see Figures 3 to 6 The follow-up cleaning mechanism 3 includes a cleaning mounting box 301. A braking unit is installed at one end corner of the cleaning mounting box 301. A follow-up unit is installed at the upper end of the cleaning mounting box 301. A multi-directional flow divider 309 is fixedly installed on the inner side of the upper end of the cleaning mounting box 301. An injection pipe 304 is installed on the upper end face of the multi-directional flow divider 309. Multiple spray nozzles 310 are fixedly installed on the lower end face of the multi-directional flow divider 309. The bottom end of the injection pipe 304 passes through the cleaning mounting box 301 and is fixedly connected to the multi-directional flow divider 309. The injection pipe 304 and the multiple spray nozzles 310 are connected through the multi-directional flow divider 309. The multiple spray nozzles 310 can spray and rinse the brush. Two swing plates 315 are rotatably connected to the inner side of the bottom of the cleaning mounting box 301. Two brush rods 314 are installed between the two swing plates 315. A drive shaft 313 is fixedly installed on the inner side of the brush rod 314. A second transmission gearbox 312 is rotatably connected to the middle of one of the swing plates 315. A second transmission motor 311 is fixedly installed on one side of the second transmission gearbox 312. The two ends of the drive shaft 313 are rotatably connected to the swing plates 315. The two swing plates 315 are symmetrically installed relative to the middle of the swing plates 315. The outer surface of the brush rod 314 is provided with brushes. During the movement of the mounting slide 202, one of the drive shafts 313 drives the brush rod 314 to rotate and clean the inner wall of the bottom of the protective shell 101, effectively maintaining the cleanliness of the processing environment and reducing the difficulty and risk of cleaning.

[0023] Please see Figure 4The follower unit includes a transmission screw 307, with connecting sleeves 308 installed on the outer sides of both ends of the transmission screw 307. A first transmission gearbox 305 is installed on the outer side of the middle part of the transmission screw 307. A first transmission motor 306 is fixedly installed on one side of the first transmission gearbox 305. The cleaning and mounting box 301 is slidably connected to the two connecting sleeves 308. The two connecting sleeves 308 are symmetrically installed relative to the transmission screw 307. The two ends of the transmission screw 307 are provided with external threads with opposite directions. The transmission screw 307 is connected to the two connecting sleeves 308 by threads. Gear sets are provided on the inner sides of both the transmission gearbox 305 and the second transmission gearbox 312. The output ends of the transmission screw 307, the first transmission motor 306, and the second transmission motor 311 are all connected to one of the swing connecting plates 315 via the gear sets. The first transmission gearbox 305 is fixedly connected to the cleaning and mounting box 301. The transmission screw 307 drives the two connecting sleeves 308 to slide in opposite directions on the upper surface of the cleaning and mounting box 301 and insert them into the inner side of the bottom of the mounting slide 202, thus maintaining the fixed connection between the cleaning and mounting box 301 and the mounting slide 202.

[0024] Please see Figure 4 and Figure 5 The braking unit consists of an electric push rod 302 and an anti-slip tooth block 303. The electric push rod 302 is fixedly connected to one end corner of the cleaning and mounting box 301. The output end of the electric push rod 302 is fixedly installed with the anti-slip tooth block 303. The lower end face of the anti-slip tooth block 303 is in contact with the inner wall of the bottom of the protective shell 101. The electric push rod 302 drives the anti-slip tooth block 303 to move down, thereby braking the cleaning and mounting box 301.

[0025] In summary, when machining a workpiece, such as drilling, milling, or grinding, the workpiece is placed on the material placement platform 107 and fixedly clamped by two clamping seats 108. Then, under the guidance of the material conveying slide rail 106, the material placement platform 107 moves the workpiece between the two first guide rails 201. The power is turned on, and the workpiece machining process can be protected and isolated by the protective shell 101 and the two material conveying sealing doors 103. Under the guidance of the first guide rail 201, the mounting carriage 202 moves the two processing units 204 to both sides of the workpiece through the first linear module 205 and the second guide rail 203. Then, under the guidance of the second guide rail 203, the two second linear modules 206 drive the third linear module 208 to move laterally through the rotary seat 207. At the same time, the rotary seat 207 drives the third linear module 208 to rotate and adjust. Thus, during the linear movement of the tool head drive box 209 driven by the third linear module 208, the tools on the two tool mounting seats 210 are adjusted in multiple directions synchronously, so that the two processing units 204 can perform synchronous processing operations on the workpiece. During workpiece processing, the electric push rod 302 is activated, causing it to move the anti-slip tooth block 303 downwards and into contact with the inner wall at the bottom of the protective housing 101. This brakes the cleaning mounting box 301, ensuring its stable placement. After workpiece processing is complete, the workpiece is moved out of the protective housing 101 via the material placement platform 107 along the conveying rail 106, resetting the mounting carriage 202. Then, the first drive motor 306 is activated, causing the first drive motor 302 to... 06 The gear set in the first transmission gearbox 305 drives the transmission screw 307 to rotate, and then the transmission screw 307 drives the two connecting sleeves 308 to slide in opposite directions on the upper end face of the cleaning installation box 301 and insert them into the inner side of the bottom end of the mounting slide 202, maintaining the fixed connection between the cleaning installation box 301 and the mounting slide 202. The mounting slide 202 is slid along the first guide rail 201 again, so that the cleaning installation box 301 can follow the mounting slide 202 through the connecting sleeves 308. Simultaneously, after the second guide rail 203 is moved upward and reset, the second transmission motor 311 is started, so that the second transmission motor 311 drives the swing connecting plate 315 to rotate through the gear set in the second transmission gearbox 312. In turn, the swing connecting plate 315 drives the two transmission shafts 313 to rotate and adjust. At this time, the two transmission shafts 313 drive the brush rods 314 to adjust to opposite heights. Thus, during the movement of the mounting slide 202, one of the transmission shafts 313 drives the brush rods 314 to rotate and clean the inner wall of the bottom of the protective shell 101, effectively maintaining the cleanliness of the processing environment and reducing the difficulty and risk of cleaning. The two brush rods 314 can clean alternately during the repeated rotation of the swing connecting plate 315, reducing the cleaning pressure and improving the cleaning effect.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A dual-head multi-spindle drilling, milling, and grinding composite machining tool, comprising a follow-up cleaning mechanism (3), characterized in that: A double-head processing mechanism (2) is installed on the outside of the follow-up cleaning mechanism (3), and a protective material placement mechanism (1) is installed on the outside of the double-head processing mechanism (2). The follow-up cleaning mechanism (3) includes a cleaning installation box (301). A braking unit is installed at one end corner of the cleaning installation box (301). A follow-up unit is installed at the upper end of the cleaning installation box (301). A multi-directional flow divider (309) is fixedly installed on the inner side of the upper end of the cleaning installation box (301). An injection pipe (304) is installed on the upper surface of the multi-directional flow divider (309). Multiple spray nozzles (310) are fixedly installed on the lower end face of the multi-directional flow divider (309). Two swing connecting plates (315) are rotatably connected to the inner side of the bottom end of the cleaning installation box (301). Two brush rods (314) are installed between the two swing connecting plates (315). A drive shaft (313) is fixedly installed on the inner side of the brush rods (314). A second transmission gearbox (312) is rotatably connected to the middle of one of the swing connecting plates (315). A second transmission motor (311) is fixedly installed on one side of the second transmission gearbox (312).

2. The dual-head multi-spindle drilling, milling, and grinding composite machining tool according to claim 1, characterized in that: The protective material placement mechanism (1) includes a protective shell (101), a conical smoke hood (104) is fixedly installed on the upper end of the protective shell (101), two maintenance doors (102) are rotatably connected to both sides of the protective shell (101), two material conveying doors (103) are rotatably connected to the front end of the protective shell (101), a material conveying unit (105) is installed on the inner side of the protective shell (101), the material conveying unit (105) includes a material conveying slide rail (106), the material conveying slide rail (106) is fixedly installed to the bottom end of the protective shell (101), a material placement platform (107) is slidably connected to the upper end face of the material conveying slide rail (106), and two clamping seats (108) are slidably connected to the upper end face of the material placement platform (107).

3. The dual-head multi-spindle drilling, milling, and grinding composite machining tool according to claim 2, characterized in that: The follower unit includes a transmission screw (307), with connecting sleeves (308) installed on the outer sides of both ends of the transmission screw (307), and a first transmission gearbox (305) installed on the outer side of the middle part of the transmission screw (307). A first transmission motor (306) is fixedly installed on one side of the first transmission gearbox (305).

4. A dual-head multi-spindle drilling, milling, and grinding composite machining center according to claim 3, characterized in that: The braking unit consists of an electric push rod (302) and an anti-slip tooth block (303). The electric push rod (302) is fixedly connected to one end corner of the cleaning installation box (301). The output end of the electric push rod (302) is fixedly installed with an anti-slip tooth block (303). The lower end face of the anti-slip tooth block (303) is in contact with the inner wall of the bottom of the protective shell (101).

5. A dual-head multi-spindle drilling, milling, and grinding composite machining center according to claim 4, characterized in that: The dual-head machining mechanism (2) includes two first guide rails (201). A mounting carriage (202) is slidably connected to the upper end face of the two first guide rails (201). Two first linear modules (205) are mounted on the rear end face of the mounting carriage (202). A second guide rail (203) is slidably connected to the outer side of each of the two first linear modules (205). Two machining units (204) are mounted on the rear end face of the second guide rails (203). The machining unit (204) includes a second linear module (206). A rotary seat (207) is rotatably connected to the rear end face of the second linear module (206). A third linear module (208) is fixedly mounted on the rear end face of the rotary seat (207). A tool head drive box (209) is slidably connected to the outer side of the third linear module (208). A tool mounting seat (210) is rotatably connected to the bottom end of the tool head drive box (209).

6. A dual-head multi-spindle drilling, milling, and grinding composite machining center according to claim 5, characterized in that: The two processing units (204) are symmetrically installed relative to the second guide rail (203). The first linear module (205) and the second linear module (206) are both provided with a lead screw and a slider. The slider and the lead screw are connected by a thread. The two ends of the second guide rail (203) are fixedly connected to the sliders in the two first linear modules (205).

7. A dual-head multi-spindle drilling, milling, and grinding composite machining center according to claim 6, characterized in that: The cleaning and installation box (301) is slidably connected to two connecting sleeves (308). The two connecting sleeves (308) are symmetrically installed relative to the transmission screw (307). The two ends of the transmission screw (307) are provided with external threads with opposite directions. The transmission screw (307) and the two connecting sleeves (308) are connected by threads.

8. A dual-head multi-spindle drilling, milling, and grinding composite machining center according to claim 7, characterized in that: The first transmission gearbox (305) and the second transmission gearbox (312) are both equipped with gear sets on their inner sides. The transmission screw (307), the output end of the first transmission motor (306), the output end of the second transmission motor (311), and one of the swing connecting plates (315) are all connected to the gear sets for transmission. The first transmission gearbox (305) is fixedly connected to the cleaning and installation box (301).

9. A dual-head multi-spindle drilling, milling, and grinding composite machining center according to claim 8, characterized in that: The bottom end of the injection tube (304) passes through the cleaning installation box (301) and is fixedly connected to the multi-directional diversion seat (309). The injection tube (304) and multiple spray nozzles (310) are connected through the multi-directional diversion seat (309).

10. A dual-head multi-spindle drilling, milling, and grinding composite machining tool according to claim 9, characterized in that: The two ends of the drive shaft (313) are rotatably connected to the swing connecting plate (315). The two swing connecting plates (315) are symmetrically installed relative to the middle of the swing connecting plate (315). The outer surface of the brush rod (314) is provided with a brush.