CN202137407U - Cambered surface drilling equipment - Google Patents

Abstract

The utility model provides an cambered surface drilling equipment, includes two flexible tracks, is equipped with the moving frame on flexible track, installs the riser through linear guide on the moving frame, rotates on the riser and is connected with the swing board, and electric main shaft installs on the swing board. The electric main shaft is connected with the swinging plate in a sliding way through a clamp, and the swinging plate is connected with a swinging driving mechanism. The electric main shaft can move longitudinally, transversely and vertically on the drilling equipment, and can also swing and rotate, so that the drilling range of the electric main shaft is enlarged, the adsorption position of the flexible track on the surface of a workpiece does not need to be frequently changed, the operation intensity is reduced, the operation efficiency is improved, the processing cost is reduced, the drilling equipment is more stable, and the drilling precision is improved.

Description

Arc surface drilling equipment

technical field

The utility model relates to a drilling device, in particular to an arc surface drilling device, which is mainly used for surface drilling of large workpieces with undulating surfaces, such as aircraft shell skins and the like.

Background technique

It is very troublesome to drill holes on the surface of large workpieces with ups and downs. The existing drilling equipment structure is to have a flexible track. The flexible track includes a track plate. There are through grooves arranged longitudinally on the track plate. The intermediate portion forms the gear teeth. A suction cup is connected below the track plate through a connecting column. The flexible track is equipped with a mobile frame, and two rows of traveling wheels are installed under the mobile frame to match the two sides of the track plate, so that the mobile frame can move smoothly on the flexible track. The moving power of the mobile frame is that a motor is installed on the mobile frame, and the output shaft of the motor is connected with a gear, which is meshed with the gear teeth on the track plate. The motor can drive the mobile frame to move on the flexible track. The electric spindle is installed on the mobile frame. During operation, the drilling equipment is adsorbed on the outer surface of the workpiece through the suction cup, and the drill bit is installed on the lower end of the electric spindle through the drill card. The drill bit just points to the surface of the workpiece and is consistent with the normal direction of the workpiece surface. The electric spindle rotates and can drill various holes on the surface of the workpiece through the feed mechanism. The drilling equipment with this structure has a single row of flexible rails, and the electric spindle on the mobile frame can only rotate itself and move along the flexible rails with the mobile frame, so that the drilling is strictly limited. It is time-consuming and labor-intensive to change the adsorption position of the flexible rail frequently, the work intensity is high, and the processing cost is high. At the same time, the stability of the mobile frame itself is poor, and there will be obvious errors in the drilling position.

Contents of the invention

The purpose of the utility model is to provide an arc surface drilling equipment which can reduce the replacement of the flexible rail adsorption position, reduce the working intensity, improve the working efficiency, reduce the processing cost and improve the drilling precision, so as to overcome the deficiencies of the prior art.

The arc surface drilling equipment of the utility model includes a flexible track and an electric spindle composed of a track plate and a suction cup connected under the track plate. Through slots are arranged on the track plate, and gear teeth are formed between adjacent through slots.

There are two rows of flexible tracks, and frames are arranged on the two rows of flexible tracks. The two sides of the track plates in each row of flexible tracks are equipped with traveling wheels. The frame is connected with a traveling motor, and the output shaft of the traveling motor is provided with a gear which meshes with the gear teeth arranged on the track plate.

The inner sides of both sides of the frame are fixedly connected with two parallel linear guide rails, and a screw nut is installed on the slider matched with each linear guide rail, and the screw nut matched with the screw nut is connected with the horizontal drive motor fixed on the frame. connect.

Each of the sliders is upwardly connected with a vertical plate, and the two vertical plates are arranged parallel to each other; the inner side of each vertical plate is connected with a swing plate through a rotating shaft, and the two swing plates are arranged parallel to each other and are connected by side connecting plates on the side. as one.

The side connection plate on the side between the two swing plates is fixedly connected to one end of the connection plate, the other end of the connection plate is connected to the screw sleeve connected to the swing motor in rotation, and the ball screw connected to the output shaft of the swing motor is connected to the ball screw nut. Matching, the ball nut is rotationally connected with the vertical plate or the bottom plate at the bottom of the slider.

The upper part of the electric spindle is fixed with an upper clamp, the feed motor is connected to the upper clamp, and the output screw of the feed motor is equipped with an output screw nut, which is installed on the side of the side between the two swing plates. The connecting plate; the lower clamp is fixedly connected with the side connecting plate on the side between the two swing plates, and the lower clamp is set on the outside of the electric spindle and can slide between each other.

The inside of the two swing plates is fixed with a cylinder, and the lower end of the piston rod of the cylinder matched with the cylinder is connected with a presser foot with a center hole, and the axial centerline of the electric spindle just points to the center hole of the presser foot.

The lower clamp is fixedly connected with the lower end of the guide shaft, and the guide shaft is inserted into the hole on the upper clamp and can slide with each other.

The arc surface drilling equipment of the utility model has two flexible rails, and the electric spindle on the movable frame on the flexible rails can move vertically, horizontally and vertically on the drilling equipment, and can also swing and move with itself. The rotation of the electric spindle increases the drilling range of the electric spindle, and there is no need to frequently replace the adsorption position of the flexible rail on the workpiece surface, which reduces the working intensity, improves the working efficiency, and reduces the processing cost. At the same time, the drilling equipment is more stable. Drilling accuracy is improved.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of arc surface drilling equipment in the specific embodiment of the present invention observed from one side;

Fig. 2 is a three-dimensional structural schematic view of the arc surface drilling equipment viewed from the other side in the specific embodiment of the present invention;

Fig. 3 is a schematic front view of the arc surface drilling equipment in the specific embodiment of the present invention;

FIG. 4 is a schematic top view of FIG. 3 .

Detailed ways

As shown in Figures 1, 2, 3, and 4: there are two rows of flexible tracks, the flexible track includes a track plate 1, and two rows of connecting columns 5 are arranged below the track plate 1, and nuts are used between the connecting columns 5 and the track plate 1 Fixed connection. A suction cup 4 is connected to the lower end of each pair of connecting columns 5 . Through grooves 2 are arranged on the track plate 1, and gear teeth 3 are formed between adjacent through grooves 2, and the through grooves 2 and the gear teeth 3 form a rack structure. The above-mentioned flexible track is a prior art and will not be described in detail.

Two rows of flexible rails are provided with a frame 6, and the frame 6 is welded and manufactured by section steel. Both sides of the track plate 1 in each row of flexible tracks are equipped with road wheels 11, that is, the road wheels 11 can roll along the sides of the track plate 1. Walking wheel 11 is installed on the below of frame 6 by axle. The frame 6 is fixedly connected with a travel motor 13 by bolts, and a gear is installed on the output shaft of the travel motor 13, and the gear meshes with the gear teeth 3 arranged on the track plate 1 to form a rack-and-pinion transmission mode. When the gear is driven to rotate, the frame 6 can be driven to move on the flexible track through the engagement of the gear and the gear teeth 3 .

Two parallel linear guide rails 8 are fixedly connected by bolts on the inside of both sides of the frame 6, and each linear guide rail 8 is equipped with a slider 9, and a screw nut is installed on the slider 9, and the screw nut matched with the screw nut is connected with the The lateral drive motor 7 fixed on the frame 6 is connected. When the horizontal drive motor 7 drives the screw to rotate, the two slide blocks can be driven to move on the linear guide rail 8 by the screw nut.

Each slider 9 is upwardly connected with a riser 10 , and the riser 10 can be made into an integral structure with the slider 9 . The two vertical plates 10 are arranged parallel to each other. The inner side of each vertical plate 10 is connected with a swing plate 14 through a rotating shaft, and the two swing plates 14 are arranged parallel to each other and are connected as a whole by side connecting plates on the sides, making it a "U" shaped frame structure.

The side connecting plate on the side between the two swinging plates 14 is fixedly connected with one end of the connecting plate 18 by bolts, and the middle part of the connecting plate 18 is in the shape of a slope. The other end of connecting plate 18 is fixedly connected with two parallel bearing plates 19, and screw cover 23 is arranged between two bearing plates 19, and there is rotating shaft connection between screw cover 23 and two bearing plates 19, makes The lead screw sleeve 23 can rotate at a certain angle relative to the support plate 19 . The front part of the swing motor 22 is fixedly connected with the screw cover 23, and the output shaft of the swing motor 22 is connected with a ball screw 20, and the ball screw 20 protrudes downward from the inner hole of the screw cover 23. On the side surface of the slider 9 or the vertical plate 10, two parallel nut support plates 24 are fixed, and the ball nut support plates 24 are connected with the ball nut 21 through the rotation of the rotating shaft, that is, the ball nut support plates 21 can be Rotate relative to the nut support plate 24. The ball screw 20 is matched with the ball screw nut 21. When the swing motor 22 drives the ball screw 20 to rotate, the swing motor 22, the screw cover 23 and the ball screw 20 can move up and down, and the connecting plate 18 rotates thereupon, and the center of rotation is the vertical plate 10 and the swing plate At the center of the rotating shaft between 14, the ball screw nut 21 and the screw sleeve 23 rotate at a certain angle thereupon, the swing motor 22 swings thereupon, and finally the swing plate 14 swings relative to the support plate 10.

27 is electric main shaft, and electric main shaft 27 tops are fixed with upper clamp 28, and 29 are feed motors, and feed motor 29 is fixedly connected with upper clamp 28 by bolts. The output shaft of the feed motor 29 is connected to the output lead screw, and the output lead screw is equipped with an output screw nut, which is installed on the side connecting plate on the side between the two swing plates 14 . The above-mentioned output screw and output screw nut can be ball screw nuts. The lower hoop 25 is fixedly connected to the side connecting plate on the side between the two swing plates 14, and the lower hoop 25 is set on the outside of the electric spindle 27 and can slide between them. When the feed motor 29 rotated, the feed motor 29, the upper clamp 28, and the electric spindle 27 could move up and down in the lower clamp 25.

Cylinder 15 is fixed on two swing plates 14 inboards, and presser foot 17 with center hole is connected with the lower end of cylinder piston rod 16 matched with cylinder 15, and the axial centerline of electric spindle 27 just points in the center hole of presser foot 17.

In order not to rotate when the electric spindle 27 moves up and down, the lower clamp 25 is fixedly connected to the lower end of the guide shaft 26, and the guide shaft 26 is inserted into the hole on the upper clamp 28 and can slide between each other.

When in use, two rows of flexible guide rails are adsorbed on the outer surface of a large workpiece, and each suction cup is connected with a vacuum device through an air pipe to maintain a safe suction. The frame matched with the flexible track and all parts above the frame are connected on the flexible track by the traveling wheels 11. Traveling motor 13 can drive frame 6 and parts on it to move on the flexible track. The transverse drive motor 7 can drive the slider 9 and the components connected to the slider 9 to move relative to the frame 6 . The swing motor 22 can drive the swing plate 14 and the parts thereon to swing relative to the vertical plate 10 . The feed motor 29 can drive the electric spindle 27 to move axially. The end of the electric spindle 27 is equipped with a drill bit through the drill card. Through the rotation of the electric spindle 27 itself and the movement and swing in the above-mentioned directions, the drill bit can drill holes on the surface of the workpiece, and the drill bit can maintain the normal line of the surface of the workpiece at its position. The same direction. When drilling, the cylinder 15 is used to drive the presser foot 17 to move downwards, so that it is pressed against the surface of the workpiece, and the center hole of the presser foot 17 is drilled.

Claims (2)

1. An arc surface drilling equipment, including a flexible track and an electric spindle (27) composed of a track plate (1), a suction cup (4) connected under the track plate (1), arranged on the track plate (1) There are through grooves (2), and gear teeth (3) are formed between adjacent through grooves (2); It is characterized in that: the flexible track has two rows, and a frame (6) is arranged on the two rows of flexible track, and the two sides of the track plate (1) in each row of flexible track are equipped with walking wheels (11), so The traveling wheel (11) described above is installed below the frame (6) through the wheel shaft, and the traveling motor (13) is connected on the frame (6), and the output shaft of the traveling motor (13) is equipped with a gear, which is connected to the track plate ( 1) The gear teeth (3) arranged on the top mesh with each other; Two parallel linear guide rails (8) are fixedly connected to the inner sides of the two sides of the frame (6), and the slider (9) matched with each linear guide rail (8) is equipped with a nut, which matches the nut The leading screw is connected with the transverse drive motor (7) fixed on the frame (6); Each slider (9) is upwardly connected with a vertical plate (10), and the two vertical plates (10) are arranged parallel to each other; the inner side of each vertical plate (10) is connected with a swing plate (14) through a rotating shaft, The two swinging plates (14) are arranged parallel to each other and are connected as a whole through the side connecting plate on the side; The side connecting plate on the side between the two swinging plates (14) is fixedly connected to one end of the connecting plate (18), and the other end of the connecting plate (18) is rotated with the lead screw sleeve (23) connected to the swinging motor (22). Connection, the ball screw (20) connected to the output shaft of the swing motor (22) matches the ball screw nut (21), and the ball screw nut (21) rotates with the vertical plate (10) or the bottom plate at the bottom of the slider (9) connect; The upper part of the electric spindle (27) is fixed with an upper clamp (28), the feed motor (29) is connected to the upper clamp (28), and the output screw of the feed motor (29) is equipped with an output nut. The output nut is installed on the side connecting plate on the side between the two swinging plates (14); the lower clamp (25) is fixedly connected to the side connecting plate on the side between the two swinging plates (14), and the lower clamp ( 25) Set on the outside of the electric spindle (27) and slide between each other; A cylinder (15) is fixed on the inner side of the two swinging plates (14), and a presser foot (17) with a center hole is connected to the lower end of the cylinder piston rod (16) matched with the cylinder (15), and the electric spindle (27) shaft Just point to the center line in the center hole of the presser foot (17). 2. The curved surface drilling equipment according to claim 1, characterized in that: the lower clamp (25) is fixedly connected with the lower end of the guide shaft (26), and the guide shaft (26) is inserted into the upper clamp (28) ) and slide between each other.

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