Positioning and drilling device for aluminum alloy door and window production

Abstract

The invention belongs to the technical field of aluminum alloy door and window machining devices, and particularly relates to an aluminum alloy door and window production positioning and drilling device which comprises a trepanning mechanism, the trepanning mechanism comprises a base, two positioning and clamping mechanisms are arranged on the base, each positioning and clamping mechanism comprises a base, a clamping front cover and a top cover, and a lining assembly and a suction assembly are arranged in each base. The lining assembly comprises a rotating block and a gear disc, and the rotating block is provided with a containing opening and a lining. When one end of a profile cavity is subjected to vertical through drilling, rigid support can be provided for the profile cavity, the axial force and the radial force of a drill bit during drilling are dispersed, the situation that the inner wall of the cavity is sunken, curled and collapsed due to concentrated stress is avoided, the concentricity and the size precision are guaranteed, the problem that a connecting piece is stuck in penetrating subsequently is avoided, and the service life of the profile cavity is prolonged. And in addition, metal scraps generated during drilling can be sucked in time, scattering and remaining of the scraps in the cavity are reduced, and the construction difficulty during assembly and the risk that a connecting piece is scrapped due to blockage are reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of aluminum alloy door and window processing devices, and specifically relates to an aluminum alloy door and window production positioning and drilling device. BACKGROUND

[0002] Aluminum alloy doors and windows are building doors and windows composed of aluminum alloy profiles as the main frame material, glass, hardware accessories, sealing rubber strips and other components, and have the characteristics of beauty, durability and excellent performance, and are widely used in modern buildings. The aluminum alloy profile is the core skeleton of the aluminum alloy door and window, which can ensure the structural strength and stability of the door and window. It is made of aluminum as the base and alloy elements such as copper, silicon, magnesium and manganese, and is formed through processes such as melting and extrusion. Common surface treatment methods for aluminum alloy door and window profiles include anodic oxidation, powder spraying and fluorocarbon paint spraying. These treatments not only improve the appearance of the profile, but also enhance its corrosion resistance, wear resistance and weather resistance.

[0003] In the production process of the aluminum alloy profile, in order to realize bolt connection at the end, drilling operation is needed on one end of the profile cavity. However, due to the special structure of the aluminum alloy profile cavity (thin wall and hollow cavity), the axial force and radial force of the drill bit are difficult to accurately control. On the one hand, if the axial force is too large or unevenly distributed, the drilling process will be interrupted, resulting in different centers of the upper and lower sidewalls of the profile cavity, and the size accuracy of the round hole design will be damaged. On the other hand, the radial force will cause extrusion to the thin-walled inner wall of the cavity, causing indentation, edge curling or even local collapse (similar to a "pinched straw"). Especially when the profile rigidity is insufficient, such as large-span, thin-walled profiles or circular cross-section cavities, the stress asymmetry of the circular cavity wall is amplified, and the local cross-section is easily distorted from circular to oval. When the shaft part is inserted, the hole size deviation and cavity cross-section deformation will cause jamming, assembly failure, or even damage to the connecting part, which seriously affects the connection strength and overall stability of the door and window frame. In addition, since the drill bit drills from the outside of the profile to the inside of the cavity, the debris will be "pushed" into the cavity, i.e. near the formed round hole. Due to the narrow space inside the cavity and the electrostatic attraction, the metal chips are easily stuck inside, which is not convenient to clean. When the connecting part is inserted, it is easy to jam or jam, increasing the construction difficulty, and even causing the connecting part to be scrapped. If the debris is not cleaned in time, it may cause wear and tear of the connecting part due to vibration and friction during long-term use of the door and window, or even cause connection failure, which increases the product rejection rate and maintenance cost. SUMMARY

[0004] The purpose of the present application is to provide an aluminum alloy door and window production positioning and drilling device to solve the technical problems in the background art.

[0005] The technical solution adopted by the present application to solve the above technical problems is: A positioning drilling device for the production of aluminum alloy doors and windows, including a hole opening mechanism, the hole opening mechanism includes a base, two positioning clamping mechanisms are provided on the base, the two positioning clamping mechanisms are symmetrically distributed on the base, the hole opening mechanism can drive the positioning clamping mechanism to move linearly, and the aluminum alloy profile to be opened is clamped between the two positioning clamping mechanisms, each of the positioning clamping mechanisms includes a base, a clamping front cover and a top cover, the base, the clamping front cover and the top cover constitute a complete outer shell, an inner lining assembly and a suction assembly are provided in the base, the inner lining assembly includes a rotating block and a gear plate, a connecting shaft is provided at the center position of the gear plate, one end of the connecting shaft is connected to the center of the rotating block, the outer wall of the rotating block and the opening on one side of the base are rotatably connected, and a plurality of placement openings of different sizes and bushings with matching sizes in the placement openings are evenly spaced around the rotating block.

[0006] Preferably, the cross section of the cavity of the aluminum alloy profile is a circular structure; And / or, the cavity cross-section of the aluminum alloy profile is a rectangular structure.

[0007] Preferably, the bushing can be inserted into one end of the cavity of the aluminum alloy profile, and the cross section of the bushing is a circular structure; And / or, the cross section of the bushing is a square structure.

[0008] Preferably, a limiting hole, a push plate and a hose are provided on the bushing, one end of the hose is connected to the opening on the limiting hole, and the other end of the hose is connected to an opening on the gear plate, and a first return spring is provided between each bushing and the corresponding placement port.

[0009] Preferably, the suction assembly includes a first box body, a second box body and a first motor, the first box body and the first motor are located in the base, the circular groove on one side of the outer wall of the first box body and the gear plate are rotatably connected, the output end of the first motor is provided with a driving gear, the driving gear is engaged with the gear plate, the second box body is located on one side of the outer wall of the base, and a connecting pipe is provided between the first box body and the second box body, and an external interface and a dustproof net inside the external interface are provided on one side of the outer wall of the second box body.

[0010] Preferably, a connecting hole is provided in the circular groove on one side of the inner wall of the first box body, and a sealing part is provided on the connecting hole. The sealing part includes a receiving part, a connecting part and a sealing part, and the sealing part cooperates with the connecting hole to seal. A second reset spring is provided between the connecting part and the inner wall of the first box body.

[0011] Preferably, a transmission assembly is arranged near one side of the receiving part, the transmission assembly comprises a top frame, a first transmission member and a second transmission member, the first transmission member and the second transmission member linearly slide on the top frame, the top frame is connected through screws and a top cover, a transmission gear is arranged between the first transmission member and the second transmission member, the transmission gear is meshed with the two racks on the two transmission members respectively, the shaft rod on the transmission gear is rotationally connected with the top frame, the first transmission member is provided with a first abutting part and a second abutting part at two ends respectively, the second abutting part can push the receiving part to open the connecting hole, the vertical part of the second transmission member pushes the corresponding bushing to linearly move through the push plate.

[0012] Preferably, the clamping front cover is provided with a lead-out hole, the bushing can pass through the lead-out hole, and the outer edge position of the lead-out hole is provided with an anti-skid elastic clamping strip.

[0013] Preferably, the base is provided with a second motor and two support plates, a positive and negative double-thread screw rod is arranged between the two support plates, nut seats are arranged in two different thread intervals of the positive and negative double-thread screw rod, each nut seat is located at the lower side of the corresponding outer shell, and one end of the positive and negative double-thread screw rod is connected with the output end of the second motor.

[0014] Preferably, the base is further provided with a moving table and a gas cylinder on the moving table, the output end of the gas cylinder is provided with a drill, the lower end of the moving table is connected with an electric sliding block through bolts, the electric sliding block is slidingly connected with an electric sliding rail, and the electric sliding rail is arranged in the grooves on the two sides of the outer wall of the base.

[0015] Compared with the prior art, the present application has the following beneficial effects: (1) The present application realizes positioning and clamping and drilling of the aluminum alloy profile by setting the base, the supporting plate, the positive and negative double-thread screw rod, the nut seat, the second motor, the moving table, the air cylinder, the drilling machine, the electric sliding block, the electric sliding rail, the base, the clamping front cover and the top cover. The mutual cooperation between the rotating block, the placing opening, the bushing and the limiting hole can fill the one end of the profile cavity before drilling, support the inner wall of the cavity by its own rigidity, disperse the axial force and radial force generated by the drill bit to the whole cavity through the lining structure, avoid the local wall surface from being concave, edge curling or collapsing due to stress concentration, evenly transmit the stress to the circular cross-section cavity, avoid the stress asymmetry of the circular cavity wall from being enlarged, prevent the local section from being distorted from circular to oval, automatically adapt to the size of the aluminum alloy profile cavity according to the need, ensure that it can closely fit the inner wall in various specifications (standard parts), further improve the support effect of the inner wall of the cavity, maintain the original form of the cavity through the auxiliary support of the lining even if the rigidity of the profile itself is poor, constrain the direction of the drill bit, ensure the perpendicularity of the hole position, reduce the problems of deviation drilling and slipping, further ensure the concentricity and size accuracy of the through-hole, avoid the jamming when the shaft parts or connecting parts are inserted, and improve the reliability of assembly.

[0016] (2) The present application realizes cooperation with the external suction device during and after drilling by setting the first box body, the connecting hole, the connecting pipe, the second box body, the plugging piece, the external interface and the dustproof net, can directly suction the metal scraps in the cavity, can reduce the scattering range of the scraps in the narrow space due to the filling of the lining in the cavity, can make the scraps concentrate near the drilling hole, i.e. in the limiting hole of the bushing, improve the suction efficiency and accuracy, can reduce the influence of the rebound of the metal scraps due to the collision with the narrow cavity, further improve the drilling accuracy, avoid the problem that the scraps are pushed into the deep cavity and are difficult to clean in the traditional drilling, reduce the scrap residue from the source, not only reduce the construction difficulty of the connecting piece caused by the jamming of the scraps during subsequent assembly, but also avoid the wear or scratch of the connecting piece by the scraps, reduce the risk of scrapping and construction and assembly of the connecting piece, indirectly improve the construction efficiency and the qualified rate of the product.

[0017] (3) The present application is provided with a top frame, a first transmission member, a first contact part, a second contact part, a second transmission member and a transmission gear, which can automatically push the bushing of corresponding size out of the guide hole of the clamping front cover by the clamping force during the positioning of the aluminum alloy profile, so that the bushing is inserted into one end of the aluminum alloy profile cavity, the second contact part contacts the connecting part of the blocking part, the blocking part is separated from the connecting hole, the suction channel composed of the limiting hole, the hose, the connecting hole, the first box body, the connecting pipe and the second box body is connected, metal chips are sucked, the connecting hole is blocked after the profile is loosened, the suction is automatically disconnected, external dust and impurities are prevented from being sucked into the suction channel after being separated from the cavity, the influence on subsequent use is avoided, the suction device is prevented from idling and energy consumption when not working, the timeliness and efficiency of debris cleaning are improved, and the device is convenient to use.

[0018] The present application will be explained in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a physical modeling diagram of the present application; Figure 2 It is a whole structure schematic diagram of the present application; Figure 3 It is an exploded structure schematic diagram of the opening mechanism of the present application; Figure 4 It is an internal structure position relationship schematic diagram of the base of the present application; Figure 5 It is a connection relationship schematic diagram of the inner liner, suction and transmission assembly of the present application; Figure 6 It is an exploded structure schematic diagram of the inner liner assembly of the present application; Figure 7 It is a structure schematic diagram of the bushing of the present application.

[0020] Figure 8 It is a structure schematic diagram of the rotating block of the present application; Figure 9 It is an exploded structure schematic diagram of the suction assembly of the present application; Figure 10 It is a rear view structure schematic diagram of the second box body of the present application; Figure 11 It is a structure schematic diagram of the outer shell of the present application; Figure 12 It is an exploded structure schematic diagram of the transmission assembly of the present application; Figure 13 It is a cavity and drilling hole connection structure schematic diagram of the two aluminum alloy profile end portions of the present application.

[0021] In the figure: 1, opening mechanism; 11, base; 111, support plate; 12, positive and negative double thread screw rod; 121, nut seat; 13, second motor; 14, moving table; 15, air cylinder; 16, drilling machine; 17, electric sliding block; 18, electric sliding rail; 2, positioning and clamping mechanism; 21, base; 22, clamping front cover; 221, lead-out hole; 23, top cover; 24, anti-skid elastic clamping strip; 3, aluminum alloy profile; 4, inner lining assembly; 41, rotating block; 411, placing opening; 42, gear plate; 421, connecting shaft; 43, bushing; 431, limiting hole; 432, push plate; 44, hose; 45, first return spring; 5, suction assembly; 51, first box body; 511, connecting hole; 52, connecting pipe; 53, plugging piece; 531, receiving part; 532, connecting part; 533, plugging part; 54, second return spring; 55, first motor; 56, driving gear; 57, second box body; 571, external interface; 58, dustproof net; 6, transmission assembly; 61, top frame; 62, first transmission member; 621, first abutting part; 622, second abutting part; 63, second transmission member; 64, transmission gear. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present application, the present application will be described more fully below in relation to the attached drawings, in which several embodiments of the present application are given, but the present application can be realized in different forms and is not limited to the embodiments described herein, on the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions as used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The use of the terms "and / or" includes a combination of one or more of the associated listed items.

[0025] Embodiment one As Figures 1-12As shown, an aluminum alloy door and window production positioning drilling device, including a hole opening mechanism 1, the hole opening mechanism 1 includes a base 11, the base 11 is provided with two positioning clamping mechanisms 2, two positioning clamping mechanisms 2 are symmetrically distributed on the base 11, the hole opening mechanism 1 can drive the positioning clamping mechanism 2 to move linearly, and the aluminum alloy profile 3 to be drilled is clamped between the two positioning clamping mechanisms 2, each positioning clamping mechanism 2 includes a base 21, a clamping front cover 22 and a top cover 23, the base 21, the clamping front cover 22 and the top cover 23 constitute a complete outer shell, the base 21 is provided with a lining assembly 4 and a suction assembly 5, the lining assembly 4 includes a rotating block 41 and a gear disc 42, a connecting shaft 421 is arranged at the center of the gear disc 42, one end of the connecting shaft 421 is connected with the rotating block 41, the rotating block 41 is rotatably connected between the outer wall and the opening of one side of the base 21, and a plurality of placement openings 411 with different sizes and lining sleeves 43 with matching sizes in the placement openings 411 are arranged at equal intervals on the rotating block 41.

[0026] Through the above structure, when the upper and lower through drilling operation is performed on one end of the profile cavity, the profile cavity can be provided with rigid support, the axial force and radial force of the drill bit during drilling can be dispersed, the concave, curled edge and collapse of the inner wall of the cavity due to force concentration can be avoided, at the same time, the circular cavity is balanced in force, the cross section is prevented from being distorted from circular to oval, different sizes of cavities can be automatically adapted, the concentricity and size accuracy of the upper and lower through circular holes are ensured, the problem of connection piece jamming is avoided, metal chips generated during drilling can be sucked in time, the scattering and residual of the chips in the cavity are reduced, the construction difficulty during assembly is reduced, the risk of connection piece jamming is reduced, and the reliability and construction efficiency of assembly are improved.

[0027] The specific operation is as follows: first, the size of the bushing 43 is selected according to the size of the cavity of the aluminum alloy profile 3 to be processed, the first motor 55 is started, the first motor 55 drives the gear plate 42 to rotate through the driving gear 56, thereby driving the rotating block 41 to rotate through the connecting shaft 421, and the matched bushing 43 is rotated to the uppermost position, that is, corresponding to the guide hole 221, then the aluminum alloy profile 3 is placed between the two positioning and clamping mechanisms 2, then the second motor 13 drives the lead screw 12 to rotate, the two nut seats 121 drive the two positioning and clamping mechanisms 2 to approach the two ends of the aluminum alloy profile 3, the first abutting portion 621 of the first transmission member 62 will first contact the aluminum alloy profile 3, then the first transmission member 62 drives the second transmission member 63 to move to one side of the profile through the transmission gear 64, then the vertical portion of the second transmission member 63 starts to move from the initial position (that is, the space between the rotating block 41 and the gear plate 42) and contacts the push plate 432, the corresponding bushing 43 is pushed out of the guide hole 221, the first return spring 45 is stretched, and the pushing of the bushing 43 is stopped when one end of the profile abuts against the clamping front cover 22, and at the same time, the second abutting portion 622 abuts against the receiving portion 531 of the blocking piece 53, so that the blocking portion 533 is separated from the connecting hole 511, at this time, the suction channel composed of the limiting hole 431, the hose 44, the connecting hole 511, the first box body 51, the connecting pipe 52 and the second box body 57 is connected, a negative pressure is formed in the limiting hole 431, and the second return spring 54 is stretched. Then, under the action of the electric sliding block 17 and the electric sliding rail 18, the drill 16 moves to one end of the profile, the air cylinder 15 pushes the drill 16 to move downward, and the upper and lower through holes are drilled at one end of the profile cavity, the metal scraps generated are left in the limiting hole 431, and then enter the second box body 57 through the suction channel and are stored, which is convenient for subsequent centralized cleaning; after the hole drilling operation is completed, the two ends of the profile are separated from the clamping front cover 22 and the first abutting portion 621, and under the action of the first return spring 45 and the second return spring 54, the corresponding bushing 43 returns to the placement opening 411, and the blocking portion 533 blocks the connecting hole 511 again.

[0028] Embodiment two As Figure 3 And Figure 11As shown, the clamping front cover 22 is provided with a lead-out hole 221, the bushing 43 can pass through the lead-out hole 221, the outer edge position of the lead-out hole 221 is provided with an anti-skid elastic clamping strip 24, the maximum static friction of the contact surface is increased through the anti-skid elastic clamping strip 24, and the stability of clamping is improved. The base 11 is provided with a second motor 13 and two support plates 111, a positive and negative double-thread screw rod 12 is arranged between the two support plates 111, a nut seat 121 is arranged in each different thread interval of the positive and negative double-thread screw rod 12, each nut seat 121 is located at the lower side of the corresponding outer shell, and one end of the positive and negative double-thread screw rod 12 is connected with the output end of the second motor 13. Through the cooperation between the second motor 13, the positive and negative double-thread screw rod 12 and the nut seat 121, driving force can be provided for the positioning and clamping mechanism 2. The base 11 is also provided with a moving table 14 and a gas cylinder 15 on the moving table 14. The output end of the gas cylinder 15 is provided with a drill 16. The lower end of the moving table 14 is connected with an electric sliding block 17 through bolts. The electric sliding block 17 is slidingly connected with an electric sliding rail 18, and the electric sliding rail 18 is arranged in the groove on the outer wall of the base 11. Through the cooperation between the electric sliding rail 18, the electric sliding block 17, the moving table 14, the gas cylinder 15 and the drill 16, the two ends of the cavity of the aluminum alloy profile 3 can be drilled.

[0029] Example three As Figures 5 to 8 and Figure 13 As shown, the cross section of the cavity of the aluminum alloy profile 3 is a circular structure; and / or, the cross section of the cavity of the aluminum alloy profile 3 is a rectangular structure, the bushing 43 can be inserted into one end of the cavity of the aluminum alloy profile 3, the cross section of the bushing 43 is a circular structure; and / or, the cross section of the bushing 43 is a square structure, the corresponding bushing 43 can be prepared in advance according to the size of the profile standard part, so as to be automatically replaced, and the processing efficiency is improved; the bushing 43 is provided with a limiting hole 431, a push plate 432 and a hose 44, one end of the hose 44 is connected with the opening of the limiting hole 431, the other end of the hose 44 is connected with one opening on the gear disc 42, and a first return spring 45 is arranged between each bushing 43 and the corresponding placing opening 411, so as to realize the reset of the bushing 43.

[0030] Example four As Figure 9 , Figure 10 and Figure 12As shown, the suction assembly 5 comprises a first box body 51, a second box body 57 and a first motor 55, the first box body 51 and the first motor 55 are located in the base 21, the circular groove on one side of the outer wall of the first box body 51 is rotationally connected with the gear disc 42, the output end of the first motor 55 is provided with a driving gear 56, the driving gear 56 is engaged with the gear disc 42, the rotation of the gear disc 42 can be driven by the driving gear 56 and the first motor 55, so as to realize the replacement of the bushings 43 of different sizes, the second box body 57 is located on one side of the outer wall of the base 21, and the first box body 51 and the second box body 57 are provided with a connecting pipe 52, one side of the outer wall of the second box body 57 is provided with an external interface 571 and a dust screen 58 in the external interface 571, the metal scraps sucked can be left in the second box body 57 by the second box body 57 and the dust screen 58, so as to be cleaned centrally; the connecting hole 511 is arranged at the circular groove on one side of the outer wall of the first box body 51, the plugging piece 53 is arranged on the connecting hole 511, the plugging piece 53 comprises a receiving part 531, a connecting part 532 and a plugging part 533, the plugging part 533 is matched with the connecting hole 511 to plug, the second return spring 54 is arranged between the connecting part 532 and the inner wall of the first box body 51, and the plugging piece 53 is used for receiving the second resisting part 622 and plugging the connecting hole 511; the transmission assembly 6 is arranged on one side close to the receiving part 531, the transmission assembly 6 comprises a top frame 61, a first transmission part 62 and a second transmission part 63, the first transmission part 62 and the second transmission part 63 linearly slide on the top frame 61, the top frame 61 is connected with the top cover 23 through screws, the transmission gear 64 is arranged between the first transmission part 62 and the second transmission part 63, the transmission gear 64 is engaged with the two racks on the transmission parts respectively, the shaft rod on the transmission gear 64 is rotationally connected with the top frame 61, the first resisting part 621 and the second resisting part 622 are arranged at two ends of the first transmission part 62 respectively, and the second resisting part 622 can push the receiving part 531 to open the connecting hole 511, the vertical part of the second transmission part 63 pushes the corresponding bushing 43 to linearly move through the push plate 432, the bushing 43 can be pushed out of the outlet hole 221 by the clamping force of the transmission assembly 6, and the connecting hole 511 is opened at the same time.

[0031] The application is described above by way of example with reference to the drawings, and it is obvious that the specific implementation of the application is not limited by the above method. Any non-essential improvement or direct application of the concept and technical solution of the application to other occasions is within the protection scope of the application.

Claims

1. A positioning drilling device for the production of aluminum alloy doors and windows, comprising a hole-opening mechanism (1), wherein the hole-opening mechanism (1) comprises a base (11), and two positioning clamping mechanisms (2) are provided on the base (11), wherein the two positioning clamping mechanisms (2) are symmetrically distributed on the base (11), and the hole-opening mechanism (1) can drive the positioning clamping mechanism (2) to move linearly, and an aluminum alloy profile (3) to be opened is clamped between the two positioning clamping mechanisms (2), characterized in that: Each of the positioning and clamping mechanisms (2) includes a base (21), a clamping front cover (22) and a top cover (23), and the base (21), the clamping front cover (22) and the top cover (23) form a complete outer shell. The base (21) is provided with an inner lining assembly (4) and a suction assembly (5), and the inner lining assembly (4) includes a rotating block (41) and a gear plate (42). A connecting shaft (421) is provided at the center position of the gear plate (42), and one end of the connecting shaft (421) is connected to the center of the rotating block (41). The outer wall of the rotating block (41) and the opening on one side of the base (21) are rotatably connected. The rotating block (41) is provided with a plurality of placement openings (411) of different sizes and bushings (43) with matching sizes in the placement openings (411) at equal intervals.

2. The positioning drilling device for aluminum alloy door and window production according to claim 1, characterized in that: The cross section of the cavity of the aluminum alloy profile (3) is a circular structure; And / or, the cavity cross-section of the aluminum alloy profile (3) is a rectangular structure.

3. The positioning drilling device for aluminum alloy door and window production according to claim 1, characterized in that: The bushing (43) can be inserted into one end of the cavity of the aluminum alloy profile (3), and the cross section of the bushing (43) is a circular structure; And / or, the cross section of the bushing (43) is a square structure.

4. The positioning drilling device for aluminum alloy door and window production according to claim 3, characterized in that: The bushing (43) is provided with a limiting hole (431), a push plate (432) and a hose (44); one end of the hose (44) is connected to an opening on the limiting hole (431); the other end of the hose (44) is connected to an opening on the gear plate (42); and a first return spring (45) is provided between each bushing (43) and the corresponding placement opening (411).

5. The positioning drilling device for aluminum alloy door and window production according to claim 1, characterized in that: The suction assembly (5) includes a first box body (51), a second box body (57) and a first motor (55). The first box body (51) and the first motor (55) are located in the base (21). A circular groove on one side of the outer wall of the first box body (51) and the gear plate (42) are rotatably connected. A driving gear (56) is provided at the output end of the first motor (55). The driving gear (56) is engaged with the gear plate (42). The second box body (57) is located on one side of the outer wall of the base (21). A connecting pipe (52) is provided between the first box body (51) and the second box body (57). An external interface (571) and a dustproof net (58) in the external interface (571) are provided on one side of the outer wall of the second box body (57).

6. The positioning drilling device for aluminum alloy door and window production according to claim 5, characterized in that: A connecting hole (511) is provided at a circular groove on one side of the outer wall of the first box body (51), and a blocking member (53) is provided on the connecting hole (511). The blocking member (53) includes a receiving portion (531), a connecting portion (532) and a blocking portion (533), and the blocking portion (533) cooperates with the connecting hole (511) to perform blocking. A second return spring (54) is provided between the connecting portion (532) and the inner wall of the first box body (51).

7. The positioning drilling device for aluminum alloy door and window production according to claim 6, characterized in that: A transmission assembly (6) is provided on one side close to the receiving portion (531), and the transmission assembly (6) includes a top frame (61), a first transmission member (62) and a second transmission member (63). The first transmission member (62) and the second transmission member (63) slide linearly on the top frame (61), and the top frame (61) is connected to the top cover (23) by screws. A transmission gear (64) is provided between the first transmission member (62) and the second transmission member (63), and the transmission gear (64) is respectively engaged with the racks on the two transmission members. The shaft on the transmission gear (64) is rotatably connected to the top frame (61). The two ends of the first transmission member (62) are respectively provided with a first interference portion (621) and a second interference portion (622), and the second interference portion (622) can push the receiving portion (531) to open the connecting hole (511). The vertical portion of the second transmission member (63) pushes the corresponding bushing (43) to move linearly through the push plate (432).

8. The positioning drilling device for aluminum alloy door and window production according to claim 1, characterized in that: The clamping front cover (22) is provided with a guide hole (221), and the bushing (43) can pass through the guide hole (221). The outer edge of the guide hole (221) is provided with an anti-slip elastic clamping strip (24).

9. The positioning drilling device for aluminum alloy door and window production according to claim 1, characterized in that: A second motor (13) and two support plates (111) are provided on the base (11); a forward and reverse double-threaded screw rod (12) is provided between the two support plates (111); nut seats (121) are provided in two different thread intervals of the forward and reverse double-threaded screw rod (12); each nut seat (121) is located on the lower side of the corresponding outer shell, and one end of the forward and reverse double-threaded screw rod (12) is connected to the output end of the second motor (13).

10. The positioning drilling device for aluminum alloy door and window production according to claim 9, characterized in that: The base (11) is further provided with a movable platform (14) and a cylinder (15) on the movable platform (14); an output end of the cylinder (15) is provided with a drilling machine (16); the lower end of the movable platform (14) is connected to an electric slider (17) by bolts; the electric slider (17) is slidably connected to an electric slide rail (18), and the electric slide rail (18) is provided in grooves on both sides of the outer wall of the base (11).

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