CN202621975U - Five-axis floating pressure drilling machine - Google Patents

Abstract

The utility model relates to a be used in five floating pressure drilling machines of drilling on curved surface work piece, it includes a drilling machine body and a floating pressure group. When the floating pressing piece is used, after the drill bit group is positioned at the position and the angle, the drill bit group and the floating pressing group move towards the working object, and the floating pressing piece of the floating pressing group is positioned on the axial outer side of the drill bit group, so that the floating pressing piece can be firstly abutted against the working object, and the working object is pressed on the storage platform; then the drill bit group continues to move towards the direction of the working object, and the floating pressing piece gradually contracts inwards relative to the floating pressing body and still keeps abutting against the working object; therefore, when the drill bit contacts the workpiece, the workpiece is pressed on the storage platform due to the floating pressing piece, so that the workpiece can be effectively fixed, vibration of the workpiece during drilling is reduced, and further burr generation on the hole is avoided and drilling quality is improved.

Description

Five-axis floating pressure drilling machine

technical field

The utility model relates to a drilling tool, in particular to a five-axis floating pressure drilling machine for drilling holes on curved surface work objects.

Background technique

The five-axis drilling machine is a drilling machine that can produce the effect of linear movement of the drill bit along three axes and the effect of rotation of the drill bit relative to each other along two axes. The three linear movement axes are X, Y, and Z respectively. Axis movement unit, the two rotation axes are A, B, C axis to choose the second of the three rotation axis units, where A, B, and C axes are the rotation axes that rotate around the X, Y, and Z axes respectively, and the five The shaft drilling machine has the following three types through the combination of the type and position of the two rotating shaft units:

One, please refer to shown in Figure 10, tool rotation type, wherein the storage platform 911 can move in the Y-axis direction, and the drill bit 912 can move in the X and Z directions and rotate in the B and C directions.

Its two, please refer to shown in Fig. 11, platform rotation type, wherein storage platform 921 can be used for the rotation of A, C direction, and drill bit 922 can be used for the movement of X, Y, Z direction.

Its three, please refer to shown in Figure 12, hybrid type, wherein the storage platform 931 can be used for the movement of Y-axis direction and the rotation of C direction, and drill bit 932 can be used for the movement of X, Z direction and the rotation of B direction.

The five-axis drilling machine can drill holes on the curved surface of the workpiece through five axial movements and rotations; the three moving axis units relatively move the position of the drill bit to the position, and the two rotating axis units make the drill bit The angle can be directly opposite to the normal of the drill hole on the curved surface; after the position and angle have reached the positioning, the three moving axis units move synchronously at last to make the drill move towards the curved surface along the normal direction, and through the rotation of the drill itself to drill holes in the surface.

Yet the five-axis drilling machine of prior art has following two shortcoming:

First, when the drill bit rotates on the work object to drill holes, it is bound to cause a certain relative vibration of the work object due to the rotational friction of the drill bit on the work object, and once the work object vibrates, the drilled hole may be damaged. produce rough edges.

Second, regardless of any of the above three types of five-axis drilling machines, the three moving axis units occupy most of the volume and weight of the entire machine; therefore, the three moving axis units move synchronously to make the When the drill bit moves toward the curved surface along the normal line, if the speed of the moving axis unit is too fast, the excessive weight of the moving axis unit may generate excessive impulse and inertial force, thereby affecting the accuracy of drilling ; Therefore, the final synchronous movement speed of the three moving axis units must be reduced to maintain the drilling quality, but it also sacrifices the overall drilling efficiency.

Utility model content

In view of the above-mentioned shortcoming that the five-axis drilling machine in the prior art cannot avoid the burrs in the drilled hole, the utility model provides a five-axis floating pressure drilling machine, which can effectively solve the shortcoming.

In order to achieve the above-mentioned creative purpose, the technical means adopted in the utility model is to design a five-axis floating pressure drilling machine, which includes:

A drilling machine body, which includes three moving shaft units, two rotating shaft units, a storage platform and a drill group; the three moving shaft units and two rotating shaft units are arranged between the drill group and the storage platform, and The drill bit group and the storage platform can make three axial relative movements and two axial relative rotations; the drill bit group includes a drill bit power part and a drill bit, and the drill bit power part drives the drill bit to rotate;

A floating pressure group, which is arranged on the drill bit group of the drilling machine body. The floating pressure group includes a floating pressure body and a floating pressure part. The floating pressure part can be retracted relative to the floating pressure body, and the retraction of the floating pressure part can move The direction is parallel to the rotation axis of the drill bit; the floating pressure part is located outside the axial direction of the drill bit of the drill bit group.

When the utility model is in use, when the position and angle of the drill group reach the positioning, the drill group and the floating pressure group move towards the work object through the synchronous movement of the three moving axes, and because the floating pressure part of the floating pressure group is located in the drill group The axial outer side of the drill bit, so the floating pressure part will first abut against the work object, and thus press the work object on the storage platform; then because the three moving axes are still moving synchronously towards the work object, the floating pressure The part will gradually shrink relative to the floating pressure body, and still keep against the work object; thus, when the drill bit touches the work object, the work object can be effectively fixed due to the floating pressure part pressing the work object on the storage platform. objects and reduce the vibration of the workpiece during drilling, thereby avoiding the generation of burrs on the holes and improving the quality of drilling.

Further, in the five-axis floating pressure drilling machine, the three moving axis units of the drilling machine body are the X and Z axis moving axis units of the moving drill bit group, and the Y axis moving axis unit of the mobile storage platform. ; The two rotating shafts of the drilling machine body are respectively the B and C axis rotating shaft units of the rotating drill bit group.

Further, in the five-axis floating pressure drilling machine, the drilling machine body further includes a second Z-axis group, and the second Z-axis group is arranged on the drilling machine body, and can follow the drill bit group and the storage The platform performs relative movement in three axes and relative rotation in two axes; the second Z-axis group can make the drill bit group move linearly, and the moving direction of the drill bit group is parallel to the rotation axis of the drill bit.

By setting the drill bit group on the second Z-axis group, and the direction in which the second Z-axis group pushes the drill bit group is coaxial with the axial direction of the drill bit, so when the drill bit group is to be moved towards the work object, the second Z-axis group can be used instead. The first axis group is used to push the drill bit group without using three moving axis units; while the second Z-axis group only pushes the drill bit group and the floating pressure group, and its weight is much lower than that required for the synchronous movement of the three moving axis units The moving element can greatly speed up the movement of the drill bit towards the workpiece while maintaining a small inertial force and impulse, which not only improves the working efficiency, but also maintains the quality of the drilling.

Further, in the five-axis floating pressure drilling machine, the second Z-axis group includes a main body and a moving plate, the main body is arranged on the drilling machine body, the moving plate can move linearly relative to the main body, and the drill bit is set on the Move on board.

Further, in the five-axis floating pressure drilling machine, wherein: the floating pressure body of the floating pressure group includes two air cylinders, the two air cylinders are respectively located on both sides of the drill bit group, and each air cylinder is provided with a pressure rod The pressure rods of the two air cylinders are fixed on the floating pressure part of the floating pressure group, and a drill hole is formed through the floating pressure part, and a pressure pad ring is provided on the periphery of the drill hole; the drill bit of the drill group is located in the drill hole of the floating pressure part. Moreover, in the five-axis floating pressure drilling machine, the floating pressure body of the floating pressure group further includes a solenoid valve and a pressure regulating valve, the solenoid valve is connected to the drilling machine body, and the pressure regulating valve is connected to the solenoid valve and the two air cylinders .

Further, in the five-axis floating pressure drilling machine, the storage platform includes a bed, a vacuum pump, a high-pressure plate and a mould; one side of the bed is concavely formed with a groove; the vacuum pump is connected to the bed with a high-pressure hose platform; the high-pressure plate is installed on the surface of the bed platform with grooves, and there are multiple vacuum suction holes formed through; the mold is placed on the high-pressure plate, and the mold is concavely formed with a vacuum chamber, which fits the high pressure The plate and the mold are formed with a plurality of vacuum suction holes. The vacuum suction holes of the mold run through the vacuum chamber and communicate with the vacuum suction holes of the high pressure plate.

Description of drawings

Fig. 1 is a three-dimensional appearance schematic diagram of the utility model.

Fig. 2 is a partial perspective view of the utility model.

Fig. 3 is an exploded view of some components of the utility model.

Fig. 4 is an exploded view of some components from another angle of the present invention.

Fig. 5 is a schematic diagram of component configuration of the floating pressure body of the present invention.

Fig. 6 is an exploded view of some components of the storage platform of the present invention.

Fig. 7 is a schematic diagram of the first action when the utility model is in use.

Fig. 8 is a schematic diagram of the second action when the utility model is in use.

Fig. 9 is a schematic diagram of the third action when the utility model is in use.

Fig. 10 is a schematic diagram of a tool rotary five-axis drilling machine in the prior art.

Fig. 11 is a schematic diagram of a platform rotary five-axis drilling machine in the prior art.

Fig. 12 is a schematic diagram of a prior art hybrid five-axis drilling machine.

[Description of main component symbols]

10 Drilling machine body 20 Storage platform

21 bed platform 211 groove

23 High pressure plate 231 Vacuum suction hole

24 molds 241 vacuum suction holes

30 The second Z-axis group 31 Main body

32 mobile boards 40 bit sets

41 bit power unit 42 bit

50 floating pressure group 51 floating pressure body

511 solenoid valve 512 pressure regulating valve

513 pneumatic cylinder 514 pressure rod

52 floating pressure parts 521 drill holes

522 pressure washer 60 working objects

911 storage platform 912 drill bit

921 storage platform 922 drill bit

931 storage platform 932 drill bits.

Detailed ways

The technical means adopted by the utility model to achieve the intended creation purpose will be further elaborated below in conjunction with the drawings and preferred embodiments of the utility model.

Please refer to Fig. 1, the five-axis floating pressure drilling machine of the present invention includes a drilling machine body 10 and a floating pressure group 50; in a preferred embodiment, the utility model further includes a second Z-axis group 30.

1 and 2, the aforementioned drilling machine body 10 includes three moving shaft units, two rotating shaft units, a storage platform 20 and a drill bit group 40; in a preferred embodiment, the drilling machine The body 10 is a tool rotary five-axis drilling machine, and the three moving axis units are the X and Z axis moving axis units of the moving drill bit group 40, and the Y axis moving axis unit of the moving storage platform 20; the two rotating axes are respectively For rotating the B and C axis rotation axis units of the drill bit group 40; wherein the X and Z two moving axis units can move the C axis rotation axis unit, and the C axis rotation axis unit can rotate the B axis rotation axis unit. Each moving axis unit is mainly a servo motor coupled with a mechanism such as a ball screw, and each rotating axis unit is mainly a servo motor and other mechanisms, and the above mechanisms are all existing technologies, so they will not be repeated here.

Please refer to Fig. 2 to Fig. 4, the aforementioned second Z-axis group 30 is arranged on the B-axis rotation shaft unit of the drilling machine body 10, so that the second Z-axis group 30 can move in three axial directions relative to the storage platform. relative movement and relative rotation of two axes; the second Z-axis group 30 includes a main body 31 and a moving plate 32 , the main body 31 is fixed on the B-axis rotating shaft unit, and the moving plate 32 can move linearly relative to the main body 31 . The relative movement mechanism of the main body 31 and the moving plate 32 is the same as the X, Y, and Z moving axis units, and is controlled by a servo motor coupled with a ball screw and other mechanisms. It is also an existing technology, so it will not be described in detail.

The aforementioned drill bit group 40 is arranged on the moving plate 32 of the second Z-axis group 30, and can perform three axial relative movements and two axial relative rotations relative to the storage platform through the second Z-axis group 30, so the drill bit The group 40 can also perform three axial relative movements and two axial relative rotations relative to the storage platform 20; in addition, the drill bit group 40 fixed on the moving plate 32 can be further moved by the main body of the second Z-axis group 30 Driven by 31; the drill bit group 40 includes a drill bit power part 41 and a drill bit 42, the drill bit power part 41 drives the drill bit 42 to rotate, and the rotation axis of the drill bit 42 is parallel to the direction in which the second Z-axis group 30 pushes the drill bit group 40; the drill bit power The part 41 is a motor in this embodiment, but it is not limited thereto.

3 to 5, the aforementioned floating pressure group 50 is located on the drill bit group 40 of the drilling machine body 10. The floating pressure group 50 includes a floating pressure body 51 and a floating pressure member 52. The floating pressure member 52 It can be retracted relative to the floating pressure body 51, and the retraction movement direction of the floating pressure member 52 is parallel to the rotation axis of the drill bit 42; the floating pressure member 52 is located on the axial outside of the drill bit 42 of the drill bit group 40; , the floating pressure body 51 includes a solenoid valve 511, a pressure regulating valve 512 and two air cylinders 513; the solenoid valve 511 is connected to the drilling machine body 10, and the solenoid valve 511 is a five-port two-position solenoid valve in this embodiment, but not As a limit, other types of solenoid valves or control devices can be used; the pressure regulating valve 512 is connected to the solenoid valve 511 with a high-pressure hose; Pressure valve 512, each air cylinder 513 is provided with a pressure rod 514; The two sides of floating pressure member 52 are respectively fixed on the pressure rod 514 of two air pressure cylinders 513, and the central part of floating pressure member 52 is formed with a drill hole 521, the drill hole 521 is sheathed with the drill bit 42 of the drill bit group 40, and a pressure washer 522 is provided on the periphery of the drill bit hole 521. The pressure washer 522 is made of wear-resistant rubber material in this embodiment, but it is not limited thereto.

Please refer to Fig. 1 and shown in Fig. 6, aforesaid storage platform 20 is located on the Y-axis moving shaft unit of drilling machine body 10 in a preferred embodiment, and includes a bed platform 21, a vacuum pump (not shown in the figure) ), a high-pressure plate 23 and a mold 24; the top surface of the bed platform 21 is concavely provided with a groove 211; the vacuum pump is connected to the bottom surface of the bed platform 21 with a high-pressure hose; A plurality of vacuum suction holes 231 are formed; the mold 24 is placed on the high pressure plate 23, and the mold 24 is recessed to form a vacuum chamber (not shown in the figure), the vacuum chamber fits the high pressure plate 23, and the mold 24 is formed through the other There are a plurality of vacuum suction holes 241 , and the vacuum suction holes 241 of the mold 24 run through the vacuum chamber and communicate with the vacuum suction holes 231 of the high pressure plate 23 .

Please refer to Fig. 1, Fig. 6 and shown in Fig. 7, when the utility model is used, at first the work object 60 is placed on the mold 24 of the storage platform 20, in the present embodiment the work object 60 is a curved surface composite material; the storage platform 20 The high-pressure plate 23 uses the gap between the groove 211 of the bed 21 and the high-pressure plate 23 as a vacuum suction, and the vacuum pump is connected to the bottom of the bed 21 through a vacuum high-pressure hose, and then passes through the vacuum suction holes of the high-pressure plate 23 in sequence 231 and the vacuum suction hole 241 of the mold 24, the workpiece placed on the surface of the mold 24 is sucked downward, so that the workpiece 60 and the storage platform 20 are mutually fixed to a certain extent.

Then, the storage platform 20 and the second Z-axis group 30 and the drill bit group 40 are relatively moved by the three moving axis units of the drilling machine body 10, and the second Z-axis is relatively rotated by the two rotation axis units of the drilling machine body 10. Group 30 and drill bit group 40, so that the drill bit group 40 faces the curved surface work object 60 on the storage platform 20.

Please refer to Fig. 8, after that, the moving plate 31 of the second Z-axis group 30 drives the drill bit group 40 and the floating pressure group 50 to move quickly towards the workpiece 60. 40 of the drill bit 42 axially outward, so the floating pressure member 52 and its pressure washer 522 will first abut against the work object 60; please refer to Figure 9, after the floating pressure member 52 abuts against the work object 60, it will Since the moving plate 31 still drives the drill bit group 40 to move forward, the floating pressure member 52 will retract inwardly with the pressure rod 514 in the opposite direction relative to the pneumatic cylinder 513, and the working object 60 will be pressed and fixed on the storage platform while still maintaining the set pressure; The drill bit 42 passes through the drill hole of the floating pressure member 52 afterwards, and drills holes on the workpiece 60; after the drilling, the moving plate 31 immediately reverses and moves the drill bit group 40 back to its original position, and the floating pressure member 52 and the pressure rod 514 first stretches relative to the pneumatic cylinder 513 until the original length is restored and returns to the axially outside of the drill bit 42 (as shown in Figure 8), and then moves back together with the moving plate 31 and the drill bit group 40 to return to the original position ( as shown in Figure 7).

Afterwards, the three moving shaft units and the two rotating shaft units of the drilling machine body 10 act again, and the drill bit group 40 is moved to the next drilling hole of the workpiece, and the aforementioned actions are repeated to carry out the next drilling. hole.

Please refer to Fig. 2, Fig. 4 and Fig. 9. When the drill bit 42 contacts and drills the work object 60, a floating pressure member 52 presses the work object 60 on the storage platform to effectively fix the work. Object 60 and reduce the vibration of the workpiece 60 when drilling, thereby avoiding the occurrence of burrs on the drilled hole, and thus improving the drilling quality; in addition, by using the second Z-axis group 30 to make the drill bit 42 toward the workpiece 60 Move, because the components pushed by the second Z-axis group 30 are only the drill bit group 40 and the floating pressure group 50, and the weight of the two groups 40, 50 is much lighter than the components that the three moving axis units need to move synchronously, so the first The second Z-axis group 50 can quickly push the drill bit group 40 to perform drilling while maintaining a small impulse and inertial force, so as to avoid affecting the drilling quality; in summary, the second Z-axis group 30 can maintain drilling Under the premise of improving the hole quality, the operation efficiency is greatly improved, and the floating pressure group 50 can improve the drilling quality at the same time. The utility model thus achieves the purpose of simultaneously improving the operation efficiency and the drilling quality.

In other embodiments, the utility model can also be improved and designed as a five-axis floating pressure drilling machine of the platform rotation type or a hybrid type. The only change is that the arrangement positions of the moving axis unit and the rotating axis unit of the drilling machine body are different. And can also play the same creative purpose.

The above descriptions are only preferred embodiments of the present utility model, and do not limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Those skilled in the art, without departing from the scope of the technical solution of the present utility model, may use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all the technical solutions of the utility model do not depart from the content of the technical solution of the utility model Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.

Claims (10)

1. A five-axis floating pressure drilling machine, characterized in that it comprises: A drilling machine body, which includes three moving shaft units, two rotating shaft units, a storage platform and a drill group; the three moving shaft units and two rotating shaft units are arranged between the drill group and the storage platform, and The drill bit group and the storage platform can make three axial relative movements and two axial relative rotations; the drill bit group includes a drill bit power part and a drill bit, and the drill bit power part drives the drill bit to rotate; A floating pressure group, which is arranged on the drill bit group of the drilling machine body. The floating pressure group includes a floating pressure body and a floating pressure part. The floating pressure part can be retracted relative to the floating pressure body, and the retraction of the floating pressure part can move The direction is parallel to the rotation axis of the drill bit; the floating pressure part is located outside the axial direction of the drill bit of the drill bit group. 2. The five-axis floating pressure drilling machine according to claim 1, wherein the three moving axis units of the drilling machine body are respectively the X and Z axis moving axis units of the moving drill group, and the moving storage platform The Y-axis moving axis unit; the two rotating axes of the drilling machine body are respectively the B and C-axis rotating axis units of the rotating drill bit group. 3. The five-axis floating pressure drilling machine according to claim 1 or 2, wherein the drilling machine body further includes a second Z-axis group, and the second Z-axis group is arranged on the drilling machine body, And with the drill bit group and the storage platform, three axial relative movements and two axial relative rotations can be made; the second Z-axis group can make the drill bit group move linearly, and the moving direction of the drill bit group is the same as the rotation axis of the drill bit. parallel. 4. The five-axis floating pressure drilling machine according to claim 3, wherein the second Z-axis group includes a main body and a moving plate, the main body is arranged on the drilling machine body, and the moving plate can be aligned with the main body To move, the drill bit group is set on the moving plate. 5. The five-axis floating pressure drilling machine according to claim 1 or 2, wherein: The floating pressure body of the floating pressure group includes two pneumatic cylinders, the two pneumatic cylinders are respectively located on both sides of the drill bit group, and each pneumatic cylinder is provided with a pressure rod; The floating pressure part of the floating pressure group is fixed with the pressure rods of the two air cylinders, and a drill hole is formed through the floating pressure part, and a pressure pad ring is provided on the periphery of the drill hole; the drill bit of the drill group is located in the drill hole of the floating pressure part. 6. The five-axis floating pressure drilling machine according to claim 4, wherein: The floating pressure body of the floating pressure group includes two pneumatic cylinders, the two pneumatic cylinders are respectively located on both sides of the drill bit group, and each pneumatic cylinder is provided with a pressure rod; The floating pressure part of the floating pressure group is fixed with the pressure rods of the two air cylinders, and a drill hole is formed through the floating pressure part, and a pressure pad ring is provided on the periphery of the drill hole; the drill bit of the drill group is located in the drill hole of the floating pressure part. 7. The five-axis floating pressure drilling machine according to claim 5, wherein the floating pressure body of the floating pressure group further includes a solenoid valve and a pressure regulating valve, and the solenoid valve is connected to the drilling machine body to adjust the pressure. The valve is connected with the solenoid valve and the two air cylinders. 8. The five-axis floating pressure drilling machine according to claim 6, wherein the floating pressure body of the floating pressure group further includes a solenoid valve and a pressure regulating valve, and the solenoid valve is connected to the drilling machine body to regulate the pressure. The valve is connected with the solenoid valve and the two air cylinders. 9. The five-axis floating pressure drilling machine according to claim 1 or 2, wherein the storage platform includes a bed, a vacuum pump, a high-pressure plate and a mould; one side of the bed is concavely formed with a groove ;The vacuum pump is connected to the bed with a high-pressure hose; the high-pressure plate is installed on the surface of the bed with grooves, and has multiple vacuum suction holes formed through; the mold is placed on the high-pressure plate, and the mold is concavely formed with a vacuum The vacuum chamber is attached to the high pressure plate, and the mold is formed with multiple vacuum suction holes. The vacuum suction holes of the mold run through the vacuum chamber and communicate with the vacuum suction holes of the high pressure plate. 10. The five-axis floating pressure drilling machine according to claim 8, wherein the storage platform includes a bed, a vacuum pump, a high-pressure plate and a mould; one side of the bed is concavely formed with a groove; the vacuum pump The bed is connected with a high-pressure hose; the high-pressure plate is installed on the surface of the bed with grooves, and there are multiple vacuum suction holes formed through; the mold is placed on the high-pressure plate, and a vacuum chamber is formed in the mold. The vacuum chamber is bonded to the high pressure plate, and the mold is formed with a plurality of vacuum suction holes. The vacuum suction holes of the mold run through the vacuum chamber and communicate with the vacuum suction holes of the high pressure plate.

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