Aluminum alloy bar drilling, milling and grinding equipment

Abstract

The present invention discloses a drilling, milling and grinding device for aluminum alloy bars, comprising a machine table, wherein a fixed component is provided at one end of the machine table for clamping and fixing the aluminum alloy bars, a drilling and milling frame is slidably arranged on the machine table, and a drilling and milling seat is fixedly arranged on the drilling and milling frame, a milling cutter seat is slidably arranged on one side of the drilling and milling seat, and a tool for drilling and milling is installed on the milling cutter seat, two grinding slides are symmetrically arranged on both sides of the machine table, and a grinding component is slidably arranged on the grinding slides, one end of the aluminum alloy bar to be drilled, milled and ground is clamped and fixed by the fixed component, and then, with the relative movement of the tool on the drilling and milling frame, the end of the aluminum alloy bar can be drilled and milled, and the outer surface of the aluminum alloy bar can also be drilled and milled, and there is no need to manually adjust the tool position repeatedly during the processing, which saves the operating procedures during the processing, and the drilling, milling and grinding processes are carried out simultaneously, which greatly improves the processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of drilling, milling and grinding, and in particular to an aluminum alloy bar drilling, milling and grinding device. Background Art

[0002] The processing of aluminum alloy bars often involves milling of various types of holes and slots, which is generally completed by copy milling machines or CNC machining centers. Drilling and milling machines are needed in the processing of aluminum alloy bars. However, during processing, most of the drilling and milling cutter heads of existing drilling and milling machines will move in one direction. However, due to the long length of the aluminum alloy bars, not only the sides but also the ends need to be drilled and milled during processing. When one side of the aluminum alloy bar is processed, the staff needs to adjust the aluminum alloy doors and windows and process the end face of the aluminum alloy, which is time-consuming and labor-intensive. In addition, the position of the aluminum alloy bar changes after the adjustment, which affects the processing efficiency and processing accuracy, and increases the labor intensity and process time of the workers. Summary of the Invention

[0003] The purpose of the present invention is to provide an aluminum alloy bar drilling, milling and grinding device to solve the technical problems in the above background.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A drilling, milling and grinding device for aluminum alloy bars, comprising a machine platform, one end of which is provided with a fixing assembly for clamping and fixing the aluminum alloy bars, a drilling and milling frame being slidably provided on the machine platform, a drilling and milling seat being fixedly provided on the drilling and milling frame, a milling cutter seat being slidably provided on one side of the drilling and milling seat, a tool for drilling and milling processing being mounted on the milling cutter seat, grinding slide rails being symmetrically provided on both sides of the machine platform, and a grinding assembly being slidably provided on the grinding slide rails;

[0006] The grinding assembly includes a grinding frame slidingly arranged on two grinding rails, a tensioning wheel is symmetrically arranged below the grinding frame, a positioning block is fixedly arranged below the grinding frame and between the two tensioning wheels, a grinding cylinder is fixedly arranged below the positioning block, an "n"-shaped grinding wheel frame is fixedly arranged on the protruding end of the grinding cylinder, a grinding wheel is symmetrically rotatably arranged below the grinding wheel frame, a grinding belt is arranged between the grinding wheel and the tensioning wheel, and the grinding belt passes through the middle of the positioning block.

[0007] As a further solution of the present invention: a suspension is symmetrically arranged below the grinding frame, wheel sliding grooves are symmetrically opened on the suspension, wheel sliders are slidingly arranged in the wheel sliding grooves, the tensioning wheel is rotatably arranged in the middle of the suspension and the rotating shaft is rotatably connected to the two wheel sliders, tensioning springs are fixedly arranged on both sides of the suspension and close to one end of the grinding frame, and the tensioning springs are connected to the wheel sliders.

[0008] As a further solution of the present invention: grinding translation blocks are symmetrically arranged below the grinding frame, and the two opposite sides of the two grinding translation blocks are provided with a snap-in slide groove and are slidably connected to the grinding slide rail. Polishing translation cylinders are symmetrically arranged on both sides of the machine and the output ends are fixedly connected to the grinding translation blocks.

[0009] As a further solution of the present invention: a "C"-shaped power slide is provided on the machine platform and power gear teeth are arranged inside; a limiting slide is provided on the machine platform on the inner side of the power slide; a translation seat for supporting translation is provided below the drilling and milling frame; a translation motor is provided on the translation seat and on one side of the drilling and milling frame; a translation gear is provided on the output end of the translation motor and the translation gear is provided in the power slide and meshed with the power gear teeth; a translation limit block slidably connected to the limiting slide is provided below the drilling and milling seat and on one side of the translation gear.

[0010] As a further solution of the present invention: a drilling and milling cylinder is provided on the side of the drilling and milling seat away from the milling cutter seat, and the protruding end of the drilling and milling cylinder is fixedly connected to the milling cutter seat.

[0011] As a further solution of the present invention: the fixing assembly includes a fixing frame fixedly set on the machine table, a rotating fixing seat is rotatably set on the side of the fixing frame close to the tool, a clamping slide is fixedly set on the side of the rotating fixing seat, and a plurality of fastening claws are slidably set in a circular array on the side of the clamping slide.

[0012] As a further solution of the present invention: the clamping slide is fixedly connected to the rotating fixed seat through a plurality of fixing rods arranged in a circular array on the side, a gear plate is rotatably provided on the side of the clamping slide close to the rotating fixed seat, a plurality of fastening bolts are rotatably provided in a circular array between the clamping slide and the rotating fixed seat, and a fastening gear is provided on one end of the fastening bolt close to the gear plate and is meshed with the gear plate.

[0013] As a further solution of the present invention: a plurality of fastening grooves are provided in a circular array on one side of the gear plate close to the fastening claw, a plurality of clamping grooves are provided in a circular array on the side of the clamping slide, a fastening slide rod is provided on one side of the fastening claw, and two fastening limit blocks are provided on the fastening slide rod, which are respectively slidably provided in the clamping slide groove and the fastening slide groove.

[0014] As a further solution of the present invention: a rotating motor is provided on a side of the fixing bracket away from the tool, and an output end thereof is fixedly connected to the rotating fixing seat.

[0015] Beneficial effects of the present invention:

[0016] (1) In the present invention, when the surface of the aluminum alloy bar is polished by the polishing belt, the polishing belt between the two polishing wheels is bent inward due to the downward pressing action of the polishing wheel frame, that is, the length of the polishing belt between the two polishing wheels is increased. At this time, in order to ensure the stability and polishing force of the polishing belt, the two tensioning wheels are slidably set on the suspension, which can effectively ensure the stability of the polishing belt during polishing. The use of tensioning springs for tensioning can ensure that the polishing belt has a certain force-bearing activity space during the polishing process, thereby ensuring the polishing stability of the polishing belt;

[0017] (2) In the present invention, the translation motor drives the translation gear to rotate. Since the translation gear is meshed with the power gear teeth, when the translation gear rotates, it can drive the translation seat to move. At this time, the tool can be moved, and the end of the aluminum alloy bar can be drilled and milled, and the surface of the aluminum alloy bar can be drilled and milled by linear movement on the side. After the side of the aluminum alloy bar is drilled and milled, the grinding cylinder located above the aluminum alloy bar extends downward, pushing the grinding wheel frame to move downward, so that the grinding wheel allows the wound grinding belt to contact the aluminum alloy bar. At this time, the surface of the aluminum alloy plate can be polished under the high-speed rotation of the aluminum alloy bar. At the same time, the grinding frame can perform translational movement to meet the comprehensive grinding of the aluminum alloy bar. Grinding and drilling and milling can be carried out at the same time, which greatly saves the working time of drilling and milling and improves work efficiency.

[0018] (3) In the present invention, the gear plate can be driven to rotate by rotating the fastening bolt. At this time, the gear plate controls the fastening slide bar to move in the clamping slide groove through the action of the fastening slide groove, and then controls the fastening claw to move relative to each other, so that the aluminum alloy bar can be clamped and fixed, with good stability and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a top view schematic diagram of the connection structure between the translation seat and the machine platform in the present invention;

[0022] Figure 3 It is a partial cross-sectional schematic diagram of the connection structure between the translation seat and the machine platform in the present invention;

[0023] Figure 4 It is a cross-sectional schematic diagram of the connection structure between the milling cutter seat and the drilling and milling seat in the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the grinding component in the present invention;

[0025] Figure 6 This is a schematic diagram of the connection structure between the clamping slide and the rotating fixed seat in the present invention;

[0026] Figure 7 2 is a cross-sectional diagram of the connection structure between the fastening claw and the clamping slide in the present invention;

[0027] Figure 8 This is a schematic diagram of the connection structure between the gear plate and the clamping seat in the present invention;

[0028] Figure 9 It is a schematic diagram of the gear plate structure of the present invention.

[0029] In the figure: 1, machine; 10, power slide; 101, power gear; 11, limit slide; 12, grinding slide; 2, fixing assembly; 20, fixing frame; 21, rotating fixed seat; 210, rotating motor; 22, fastening bolt; 221, fastening gear; 222, fixing rod; 23, clamping slide; 231, gear plate; 2310, fastening slide; 232, clamping slide; 24, fastening claw; 241, fastening slide; 242, fastening limit block; 3, drilling and milling frame; 31, translation seat; 3 11. Translation motor; 312. Translation gear; 313. Translation limit block; 32. Drilling and milling seat; 33. Drilling and milling cylinder; 34. Milling cutter seat; 35. Tool; 4. Grinding assembly; 41. Grinding frame; 42. Grinding translation block; 420. Clamping slide; 421. Grinding translation cylinder; 43. Suspension; 430. Wheel slide groove; 431. Tensioning spring; 432. Tensioning wheel; 433. Wheel slider; 44. Positioning block; 45. Grinding cylinder; 46. Grinding wheel frame; 47. Grinding wheel; 48. Grinding belt. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] See also Figure 1 - Figure 9As shown, the present invention is a drilling, milling and grinding equipment for aluminum alloy bars, comprising a machine table 1, one end of the machine table 1 is provided with a fixing component 2 for clamping and fixing the aluminum alloy bar, a drilling and milling frame 3 is slidably provided on the machine table 1, and a drilling and milling seat 32 is fixedly provided on the drilling and milling frame 3, a milling cutter seat 34 is slidably provided on one side of the drilling and milling seat 32, and a tool 35 for drilling and milling processing is installed on the milling cutter seat 34, and the tool 35 can be replaced independently according to the needs of drilling and milling. At the same time, two grinding slides 12 are symmetrically provided on both sides of the machine table 1, and a grinding component 4 is slidably provided on the grinding slide 12, and the grinding component 4 is used to complete the drilling and milling. The surface of the aluminum alloy plate is ground, and one end of the aluminum alloy bar to be drilled and milled is clamped and fixed by the fixing component 2, and then the relative movement of the tool 35 on the drilling and milling frame 3 is coordinated to perform drilling and milling processing on the end of the aluminum alloy bar, and the outer surface of the aluminum alloy bar can also be drilled and milled. During the processing, there is no need to manually adjust the position of the tool 35 repeatedly, which saves the operating procedures during the processing. At the same time, with the grinding component 4 that can be translated, the surface of the aluminum alloy bar after drilling and milling can be polished. The drilling, milling and grinding processes are carried out simultaneously, which greatly improves the processing efficiency.

[0032] Structural design reference of grinding component 4 Figure 4 As shown, the grinding assembly 4 includes a grinding frame 41 slidingly arranged on two grinding slide rails 12, and a tension wheel 432 is symmetrically arranged below the grinding frame 41. A positioning block 44 is fixedly arranged below the grinding frame 41 and between the two tension wheels 432. At the same time, a grinding cylinder 45 is fixedly arranged below the positioning block 44, and an "n"-shaped grinding wheel frame 46 is fixedly arranged on the protruding end of the grinding cylinder 45. In addition, two grinding wheels 47 are symmetrically rotated below the grinding wheel frame 46, and a grinding belt 48 is provided between the grinding wheel 47 and the tension wheel 432. The belt 48 passes through the middle of the positioning block 44. After the side of the aluminum alloy bar is drilled and milled, the grinding cylinder 45 located above the aluminum alloy bar extends downward, pushing the grinding wheel frame 46 to move downward, so that the grinding wheel 47 allows the wound grinding belt 48 to contact the aluminum alloy bar. At this time, the surface of the aluminum alloy plate can be polished under the high-speed rotation of the aluminum alloy bar. At the same time, the grinding frame 41 can perform translational movement to meet the comprehensive grinding of the aluminum alloy bar. Grinding and drilling and milling can be carried out simultaneously, which greatly saves the working time of drilling and milling and improves work efficiency.

[0033] Specifically, a suspension 43 is symmetrically provided below the grinding frame 41, and a wheel sliding groove 430 is symmetrically opened on the suspension 43. A wheel slider 433 is slidably provided in the wheel sliding groove 430, and a tensioning wheel 432 is rotatably provided in the middle of the suspension 43 and the rotating shaft is rotatably connected to the two wheel sliders 433. A tensioning spring 431 is fixedly provided on both sides of the suspension 43 and at one end close to the grinding frame 41. The tensioning spring 431 is connected to the wheel slider 433. When grinding, the grinding wheel frame 46 moves downward, so that the grinding belts 48 on the outer sides of the two grinding wheels 47 contact the upper surface of the aluminum alloy bar, so that the aluminum alloy bar can be ground. When the surface of the aluminum alloy bar is polished by the polishing belt 48, the polishing belt 48 between the two polishing wheels 47 is bent inward due to the downward pressure of the polishing wheel frame 46, that is, the length of the polishing belt 48 between the two polishing wheels 47 is increased. At this time, in order to ensure the stability and polishing force of the polishing belt 48, the two tensioning wheels 432 are slidably set on the suspension 43, which can effectively ensure the stability of the polishing belt 48 during polishing. The tensioning spring 431 is used for tensioning, which can ensure that the polishing belt 48 has a certain force-bearing activity space during the polishing process, thereby ensuring the polishing stability of the polishing belt 48.

[0034] In addition, two grinding translation blocks 42 are symmetrically arranged below the grinding frame 41. The two grinding translation blocks 42 are provided with a snap-in slide groove 420 on the opposite side and are slidingly connected to the grinding slide rail 12. Grinding translation cylinders 421 are symmetrically arranged on both sides of the machine 1 and the output ends are fixedly connected to the grinding translation blocks 42. By extending and retracting the grinding translation cylinders 421, the movement of the grinding frame 41 can be controlled, and then the movement of the grinding belt 48 during the grinding process of the aluminum alloy bar can be controlled, thereby effectively and comprehensively grinding the surface of the aluminum alloy bar.

[0035] Regarding the tool 35 movement route and design structure during drilling and milling, refer to Figure 2 and Figure 3As shown, a "C"-shaped power chute 10 is provided on the machine 1 and a power gear 101 is provided inside. A limited chute 11 is provided on the inner side of the power chute 10 on the machine 1. At the same time, a translation seat 31 for supporting translation is provided below the drilling and milling frame 3. A translation motor 311 is provided on the translation seat 31 and located on one side of the drilling and milling frame 3. A translation gear 312 is provided on the output end of the translation motor 311 and the translation gear 312 is provided in the power chute 10 and is meshed with the power gear 101. The drilling and milling seat 32 is below the translation gear 311 and is located on the translation gear 312. One side of the wheel 312 is provided with a translation limit block 313 which is slidingly connected to the limit slide groove 11. Under the limiting action of the translation limit block 313, the translation gear 312 is driven to rotate by the translation motor 311. Since the translation gear 312 is meshed and connected with the power gear teeth 101, when the translation gear 312 rotates, it can drive the translation seat 31 to move. At this time, the tool 35 can be moved, and the end of the aluminum alloy bar can be drilled and milled, and the surface of the aluminum alloy bar can be drilled and milled by moving linearly on the side.

[0036] Reference Figure 4 As shown, a drilling and milling cylinder 33 is provided on the side of the drilling and milling seat 32 away from the milling cutter seat 34. The protruding end of the drilling and milling cylinder 33 is fixedly connected to the milling cutter seat 34. The forward movement of the tool 35 can be controlled by the extension and retraction of the drilling and milling cylinder 33, thereby performing drilling and milling work.

[0037] Reference Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown, the fixing assembly 2 includes a fixing frame 20 fixedly set on the machine table 1, and a rotating fixing seat 21 is rotatably provided on the side of the fixing frame 20 close to the tool 35. A clamping slide 23 is fixedly provided on the side of the rotating fixing seat 21, and a plurality of fastening claws 24 are slidably provided on the side of the clamping slide 23 in a circular array. The relative movement of the fastening claws 24 can clamp and fix the aluminum alloy bar to ensure the stability of the aluminum alloy bar during drilling and milling operations.

[0038] Specifically, the clamping slide 23 is fixedly connected to the rotating fixed seat 21 through a plurality of fixing rods 222 arranged in a circular array on the side. A gear plate 231 is rotatably provided on the side of the clamping slide 23 close to the rotating fixed seat 21. A plurality of fastening bolts 22 are rotatably provided in a circular array between the clamping slide 23 and the rotating fixed seat 21. A fastening gear 221 is provided on one end of the fastening bolt 22 close to the gear plate 231 and is meshed with the gear plate 231. A ring-shaped gear tooth is provided on one side of the gear plate 231. By rotating any one of the fastening bolts 22, the gear plate 231 can be driven to rotate.

[0039] The gear plate 231 is provided with a plurality of fastening grooves 2310 in a circular array on one side close to the fastening claw 24, and a plurality of clamping grooves 232 are provided on the side of the clamping slide 23 in a circular array. A fastening slide bar 241 is provided on one side of the fastening claw 24, and two fastening limit blocks 242 are provided on the fastening slide bar 241, which are respectively slidably arranged in the clamping groove 232 and the fastening slide groove 2310. The gear plate 231 can be driven to rotate by rotating the fastening bolt 22. At this time, the gear plate 231 controls the fastening slide bar 241 to move in the clamping groove 232 through the action of the fastening groove 2310, and then the fastening claw 24 can be controlled to move relative to each other, so that the aluminum alloy bar can be clamped and fixed, with good stability and easy operation.

[0040] In addition, a rotating motor 210 is provided on the side of the fixing frame 20 away from the tool 35, and the output end is fixedly connected to the rotating fixing seat 21. The rotating motor 210 drives the rotating fixing seat 21 to rotate, and then drives the aluminum alloy bar to rotate, meeting the requirements of drilling and milling.

[0041] Working principle of the present invention:

[0042] During operation, one end of the aluminum alloy bar is inserted into the middle of the fastening claw 24, and then one of the fastening bolts 22 is rotated to drive the gear plate 231 to rotate. The gear plate 231 controls the fastening slide rod 241 to move in the clamping slide groove 232 through the action of the fastening slot 2310, and controls the fastening claw 24 to move relative to the aluminum alloy bar to clamp and fix it.

[0043] Then, the initial position of the tool 35 on the milling cutter seat 34 is adjusted, and then the rotary motor 210 drives the rotary fixed seat 21 to rotate, and then drives the aluminum alloy bar to rotate. At this time, the translation motor 311 drives the translation gear 312 to rotate to control the movement of the tool 35. At the same time, the drilling and milling cylinder 33 is extended and retracted to control the forward movement of the tool 35 to drill and mill the aluminum alloy bar.

[0044] After the surface drilling and milling of the aluminum alloy bar is completed, the grinding cylinder 45 located above the aluminum alloy bar extends downward, pushing the grinding wheel frame 46 to move downward, so that the grinding wheel 47 allows the wound grinding belt 48 to contact the aluminum alloy bar. At this time, the surface of the aluminum alloy plate can be polished and polished under the high-speed rotation of the aluminum alloy bar, and the grinding frame 41 can perform translational movement to fully polish the aluminum alloy bar.

[0045] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A drilling, milling and grinding device for aluminum alloy bars, comprising a machine (1), characterized in that: One end of the machine (1) is provided with a fixing assembly (2) for clamping and fixing the aluminum alloy bar, a drilling and milling frame (3) is slidably provided on the machine (1), a drilling and milling seat (32) is fixedly provided on the drilling and milling frame (3), a milling cutter seat (34) is slidably provided on one side of the drilling and milling seat (32), a tool (35) for drilling and milling processing is installed on the milling cutter seat (34), grinding slide rails (12) are symmetrically provided on both sides of the machine (1), and a grinding assembly (4) is slidably provided on the grinding slide rails (12); The grinding assembly (4) includes a grinding frame (41) slidably arranged on two grinding slide rails (12), a tension wheel (432) is symmetrically arranged below the grinding frame (41), a positioning block (44) is fixedly arranged below the grinding frame (41) and between the two tension wheels (432), a grinding cylinder (45) is fixedly arranged below the positioning block (44), an "n"-shaped grinding wheel frame (46) is fixedly arranged on the protruding end of the grinding cylinder (45), a grinding wheel (47) is symmetrically rotatably arranged below the grinding wheel frame (46), a grinding belt (48) is arranged between the grinding wheel (47) and the tension wheel (432), and the grinding belt (48) passes through the middle of the positioning block (44); The machine (1) is provided with a "C"-shaped power chute (10) and a power gear (101) is provided inside the power chute (10). A limit chute (11) is provided on the machine (1) on the inner side of the power chute (10). A translation seat (31) for supporting translation is provided below the drilling and milling frame (3). A translation motor (311) is provided on the translation seat (31) and on one side of the drilling and milling frame (3). A translation gear (312) is provided on the output end of the translation motor (311). The translation gear (312) is provided in the power chute (10) and meshed with the power gear (101). A translation limit block (313) slidably connected to the limit chute (11) is provided below the drilling and milling seat (32) and on one side of the translation gear (312).

2. The aluminum alloy bar drilling, milling and grinding equipment according to claim 1, characterized in that: A suspension (43) is symmetrically arranged below the grinding frame (41), and a wheel sliding groove (430) is symmetrically opened on the suspension (43), and a wheel slider (433) is slidably arranged in the wheel sliding groove (430), the tensioning wheel (432) is rotatably arranged in the middle of the suspension (43) and the rotating shaft is rotatably connected to the two wheel sliders (433), and a tensioning spring (431) is fixedly arranged on both sides of the suspension (43) and at one end close to the grinding frame (41), and the tensioning spring (431) is connected to the wheel slider (433).

3. The aluminum alloy bar drilling, milling and grinding equipment according to claim 1, characterized in that: A grinding translation block (42) is symmetrically arranged below the grinding frame (41), and a clamping groove (420) is provided on the opposite side of the two grinding translation blocks (42) and is slidably connected to the grinding slide rail (12). A grinding translation cylinder (421) is symmetrically arranged on both sides of the machine (1), and the output end is fixedly connected to the grinding translation block (42).

4. The aluminum alloy bar drilling, milling and grinding equipment according to claim 1, characterized in that: A drilling and milling cylinder (33) is provided on one side of the drilling and milling seat (32) away from the milling cutter seat (34), and an extended end of the drilling and milling cylinder (33) is fixedly connected to the milling cutter seat (34).

5. The aluminum alloy bar drilling, milling and grinding equipment according to claim 1, characterized in that: The fixing assembly (2) includes a fixing frame (20) fixedly mounted on the machine platform (1), a rotating fixing seat (21) being rotatably mounted on a side of the fixing frame (20) close to the tool (35), a clamping slide (23) being fixedly mounted on a side of the rotating fixing seat (21), and a plurality of fastening claws (24) being slidably mounted on a side of the clamping slide (23) in a circular array.

6. The aluminum alloy bar drilling, milling and grinding equipment according to claim 5, characterized in that: The clamping slide (23) is fixedly connected to the rotating fixed seat (21) through a plurality of fixing rods (222) arranged in a circular array on the side thereof; a gear plate (231) is rotatably arranged on one side of the clamping slide (23) close to the rotating fixed seat (21); a plurality of fastening bolts (22) are rotatably arranged in a circular array between the clamping slide (23) and the rotating fixed seat (21); a fastening gear (221) is provided on one end of the fastening bolt (22) close to the gear plate (231) and is meshed with the gear plate (231).

7. The aluminum alloy bar drilling, milling and grinding equipment according to claim 6, characterized in that: A plurality of fastening grooves (2310) are provided in a circular array on one side of the gear plate (231) close to the fastening claw (24), a plurality of clamping grooves (232) are provided in a circular array on the side of the clamping slide (23), a fastening slide rod (241) is provided on one side of the fastening claw (24), and two fastening limit blocks (242) are provided on the fastening slide rod (241) and are respectively slidably provided in the clamping groove (232) and the fastening groove (2310).

8. The aluminum alloy bar drilling, milling and grinding equipment according to claim 5, characterized in that: A rotating motor (210) is provided on a side of the fixing frame (20) away from the tool (35), and an output end thereof is fixedly connected to the rotating fixing seat (21).

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