CN116786863A - Drilling device and method - Google Patents

Abstract

The invention provides a drilling device and method. The device includes: a gear set; a transmission chain. The transmission chain is surrounded to form an accommodation space consistent with the shape of the drill hole to be processed. The gear set is arranged in the accommodation space, and It is meshed and connected with the transmission chain; the first end face of the transmission chain is provided with a plurality of sharp teeth; among them, the gears in the gear set engage and rotate with each other to drive the transmission chain to rotate around the gear set; the first end face is perpendicular to the housing The end surface of the centerline of the space. The drilling device provided by the invention can directly obtain oblong holes, has high labor efficiency and guaranteed accuracy.

Description

Drilling apparatus and methods

Technical field

The present invention relates to the field of drilling technology, and in particular, to a drilling device and method.

Background technique

During the modification process of the car body and frame, many long round holes are needed to assemble parts. However, the existing drilling device cannot directly drill the long round holes. It can only be drilled by first drilling a round hole and then manually expanding it. The oblong hole not only has low labor efficiency, but also cannot guarantee the accuracy of the oblong hole.

Contents of the invention

The object of the present invention is to provide a drilling device and method to solve the problem of being unable to directly drill oblong holes.

In order to solve the above technical problems, embodiments of the present invention provide a drilling device, including:

gear set;

The transmission chain is surrounded by a receiving space that is consistent with the shape of the drill hole to be processed, and the gear set is arranged in the receiving space and is meshed with the transmission chain; the transmission chain has A plurality of tines are provided on the first end surface;

Wherein, the gears in the gear set engage and rotate with each other to drive the transmission chain to rotate around the gear set; the first end face is an end face perpendicular to the center line of the accommodation space.

Optionally, the gear set includes:

a first gear whose axis coincides with the centerline of the accommodation space;

Wherein, a positioning pin is provided on the axis of the first gear, and the extension direction of the positioning pin is the same as the protruding direction of the tines on the first end surface.

Optionally, one end of the positioning pin away from the first gear is formed into a tapered structure.

Optionally, the first gear is provided with a first rotating shaft on the end face away from the positioning pin for connecting the driving member;

Wherein, the driving member inputs rotational driving force to the first gear through the first rotating shaft.

Optionally, the gear set also includes:

Two second gears located on both sides of the first gear, the two second gears are meshed with the first gear respectively;

Wherein, the first gear rotates in a first direction, driving the two second gears to rotate in a second direction opposite to the first direction, and the two second gears drive the transmission chain to rotate.

Optionally, the diameters of the two second gears are equal, and the diameter of the first gear is smaller than the diameter of the second gear.

Optionally, the transmission chain includes a plurality of meshing racks meshed with the gear set, wherein on the first end surface, one of the pointed teeth is provided at a corresponding position of each meshing rack.

Optionally, the device also includes:

Positioning plate, the gear set is installed on the positioning plate through a rotating shaft.

Optionally, the positioning plate is provided with multiple positioning holes;

Each gear in the gear set is provided with a rotating shaft on its axis;

Wherein, the rotating shaft passes through the positioning hole and is rotationally connected to the positioning plate.

An embodiment of the present invention also provides a drilling method, which is applied to the drilling device as described above. The method includes:

Make a round hole on the part to be processed, the diameter of the round hole being smaller than the diameter of the drill hole to be processed on the part to be processed;

Align the center of the gear set with the center of the circular hole, a plurality of the tines fit with the workpiece to be processed, and drive the gear set to rotate through a driving member, and the gear set drives the transmission chain Rotating around the gear set, the plurality of tines create the drilled holes on the piece to be processed.

Optionally, the gear set includes a first gear whose axis coincides with the center line of the accommodation space. When a positioning pin is provided on the axis of the first gear, the center of the gear set can be Align the center of the circular hole, including:

By inserting the positioning pin into the circular hole, the center of the gear set is aligned with the center of the circular hole.

The beneficial effects of the above technical solutions of the present invention are as follows:

In the above scheme, the driving part drives the transmission chain to rotate through the gear set, and the multiple tines on the first end surface of the transmission chain create holes to be processed on the part to be processed that are consistent with the shape of the accommodation space. Using the drilling device provided by the invention, when the transmission chain is surrounded by an oblong accommodation space, an oblong hole can be obtained directly, the labor efficiency is high, and the accuracy is guaranteed.

Description of the drawings

Figure 1 is a schematic structural diagram of a drilling device according to an embodiment of the present invention;

Figure 2 is a schematic structural diagram of a gear set according to an embodiment of the present invention;

Figure 3 is a schematic structural diagram of a transmission chain according to an embodiment of the present invention;

Figure 4 is a front view of the drilling device according to the embodiment of the present invention;

Figure 5 is a side view of the drilling device according to the embodiment of the present invention;

Figure 6 is a top view of the drilling device according to the embodiment of the present invention;

Figure 7 is a schematic diagram of the application of the drilling device according to the embodiment of the present invention.

Explanation of reference symbols:

1: Gear set;

2: Transmission chain;

3: Positioning plate;

4: Driving parts;

5: Rotating axis;

11: First gear;

12: Second gear;

21: Accommodation space;

22: pointed teeth;

23: Meshing rack;

110: Positioning pin.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

As shown in Figures 1 to 3, a drilling device provided by an embodiment of the present invention includes:

Gear set 1;

The transmission chain 2 is surrounded by an accommodating space 21 consistent with the shape of the hole to be processed. The gear set 1 is arranged in the accommodating space 21 and is meshed with the transmission chain 2 ; The first end surface of the transmission chain 2 is provided with a plurality of sharp teeth 22;

Among them, the gears in the gear set 1 engage and rotate with each other to drive the transmission chain 2 to rotate around the gear set 1; the first end face is an end face perpendicular to the center line of the accommodation space 21 .

In the above embodiment of the present invention, when the shape of the accommodation space 21 is an oblong shape, the driving member 4 drives the transmission chain 2 to rotate through the gear set 1, and the plurality of tines 22 on the first end surface of the transmission chain 2 are in the position of the workpiece to be processed. Make holes to be processed that are consistent with the shape of the accommodation space. Using the drilling device in this embodiment, oblong holes can be obtained directly, the labor efficiency is high, and the accuracy is guaranteed.

Optionally, the gear set 1 includes:

The first gear 11 whose axis coincides with the center line of the accommodation space 21;

Wherein, a positioning pin 110 is provided on the axis of the first gear 11 , and the extending direction of the positioning pin 110 is the same as the protruding direction of the tines 22 on the first end surface.

In the above embodiment of the present invention, the positioning pin is fixed on the axis of the first gear 11; the fixing method includes but is not limited to key positioning, pin positioning and interference fit positioning.

Optionally, one end of the positioning pin 110 away from the first gear 11 is formed into a tapered structure.

In the above embodiment of the present invention, one end of the tapered structure of the positioning pin 110 can be used to make a circular hole in the workpiece to be processed.

Optionally, the first gear 11 is provided with a first rotating shaft on the end face away from the positioning pin 110 for connecting the driving member 4;

The driving member 4 inputs rotational driving force to the first gear 11 through the first rotating shaft.

In the above embodiment of the present invention, the driving member 4 is a pneumatic trigger, and the first rotating shaft is fixed on the axis center of the first gear 11. The first rotating shaft and the positioning pin 110 can be two different ones. The shaft can also be two parts of one shaft, and the fixing methods include but are not limited to key positioning, pin positioning and interference fit positioning. The driving member 4 is connected to the first rotating shaft and drives the first rotating shaft to rotate, driving the first gear 11 and the positioning pin 110 to rotate.

Optionally, the gear set 1 also includes:

Two second gears 12 located on both sides of the first gear 11, the two second gears 12 are meshed with the first gear 11 respectively;

The first gear 11 rotates in the first direction, driving the two second gears 12 to rotate in the second direction opposite to the first direction, and the two second gears 12 drive the transmission chain 2 to rotate. .

In the above embodiment of the present invention, the two second gears 12 are meshed with the transmission chain 2. If the first gear 11 rotates clockwise, the second gear 12 and the transmission chain 2 will rotate counterclockwise. If the first gear 11 rotates counterclockwise, When the gear 11 rotates counterclockwise, the second gear 12 and the transmission chain 2 rotate clockwise.

Optionally, the diameters of the two second gears 12 are equal, and the diameter of the first gear 11 is smaller than the diameter of the second gear 12 .

Optionally, the transmission chain 2 includes a plurality of meshing racks 23 meshed with the gear set, wherein on the first end surface, one of the meshing racks 23 is provided at a corresponding position. Teeth 22.

As shown in Figures 4 to 6, they are schematic structural diagrams of the drilling device provided by the present invention.

Optionally, the device also includes:

Positioning plate 3, the gear set 1 is installed on the positioning plate 3 through the rotating shaft 5.

In the above embodiment of the present invention, the positioning plate 3 ensures that the relative positions of the gears in the gear set 1 are fixed, thereby increasing the stability of the device.

Optionally, the positioning plate 3 is provided with multiple positioning holes;

A rotating shaft 5 is provided on the axis of each gear in the gear set 1;

The rotating shaft 5 passes through the positioning hole and is rotatably connected to the positioning plate 3 .

In the above embodiment of the present invention, the rotating shaft 5 and the positioning hole are connected in a clearance fit manner, and the rotating shaft 5 can rotate relative to the positioning hole; each rotating shaft 5 is fixed on the axis of each gear in the gear set 1 , wherein the fixing methods include but are not limited to key positioning, pin positioning and interference fit positioning.

As shown in Figure 7, it is a schematic diagram of the application of the drilling device provided by the present invention.

An embodiment of the present invention also provides a drilling method, which is applied to the drilling device as described above. The method includes:

Make a round hole on the part to be processed, the diameter of the round hole being smaller than the diameter of the drill hole to be processed on the part to be processed;

Align the center of the gear set 1 with the center of the circular hole, the plurality of tines 22 fit with the workpiece to be processed, and drive the gear set 1 to rotate through the driving member 4. The gear set 1 The transmission chain 2 is driven to rotate around the gear set 1, and the plurality of tines 22 create the drilling holes to be processed on the piece to be processed.

Optionally, the gear set 1 includes a first gear 11 whose axis coincides with the center line of the accommodation space 21 . When a positioning pin 110 is provided on the axis of the first gear 11 , the first gear 11 can be The center of the gear set 1 is aligned with the center of the circular hole, including:

By inserting the positioning pin 110 into the circular hole, the center of the gear set 1 is aligned with the center of the circular hole.

In the above embodiment of the present invention, after the positioning pin 110 is aligned with the center of the workpiece to be processed, the driving member 4 is started to drive the rotating shaft 5, the gear set 1, the positioning pin 110 and the transmission chain 2 to rotate; first, the positioning pin 110 is aligned Drill a round hole in the center of the workpiece to be processed and insert it into the round hole. The plurality of tines 22 gradually fit into the workpiece to be processed, ensuring the position and stability of the drilling device and the workpiece to be processed; secondly , the plurality of tines 22 create the drilling holes to be processed on the piece to be processed.

To sum up, in the above embodiment of the present invention, the driving member 4 drives the transmission chain 2 to rotate through the gear set 1, and the plurality of tines 22 on the first end surface of the transmission chain 2 creates an accommodation space on the workpiece to be processed. When the shape of the accommodating space 21 is an oblong hole to be processed, the drilling device in this embodiment can be used to directly obtain the oblong hole, which has high labor efficiency and guaranteed accuracy.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the invention. In this way, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims (11)

1. A drilling device, characterized in that it includes: gear set; The transmission chain is surrounded by a receiving space that is consistent with the shape of the drill hole to be processed, and the gear set is arranged in the receiving space and is meshed with the transmission chain; the transmission chain has A plurality of tines are provided on the first end surface; Wherein, the gears in the gear set engage and rotate with each other to drive the transmission chain to rotate around the gear set; the first end face is an end face perpendicular to the center line of the accommodation space. 2. The drilling device according to claim 1, wherein the gear set includes: a first gear whose axis coincides with the centerline of the accommodation space; Wherein, a positioning pin is provided on the axis of the first gear, and the extension direction of the positioning pin is the same as the protruding direction of the tines on the first end surface. 3. The drilling device according to claim 2, wherein an end of the positioning pin away from the first gear is formed into a tapered structure. 4. The drilling device according to claim 2, wherein the first gear is provided with a first rotating shaft on the end face away from the positioning pin for connecting the driving member; Wherein, the driving member inputs rotational driving force to the first gear through the first rotating shaft. 5. The drilling device according to claim 2, wherein the gear set further includes: Two second gears located on both sides of the first gear, the two second gears are meshed with the first gear respectively; Wherein, the first gear rotates in a first direction, driving the two second gears to rotate in a second direction opposite to the first direction, and the two second gears drive the transmission chain to rotate. 6. The drilling device according to claim 5, wherein the diameters of the two second gears are equal, and the diameter of the first gear is smaller than the diameter of the second gear. 7. The drilling device according to claim 1, wherein the transmission chain includes a plurality of meshing racks meshed with the gear set, wherein on the first end surface, each of the meshing teeth The corresponding positions of the strips are respectively provided with one of the tines. 8. The drilling device according to claim 1, characterized in that the device further comprises: Positioning plate, the gear set is installed on the positioning plate through a rotating shaft. 9. The drilling device according to claim 8, wherein the positioning plate is provided with a plurality of positioning holes; Each gear in the gear set is provided with a rotating shaft on its axis; Wherein, the rotating shaft passes through the positioning hole and is rotationally connected to the positioning plate. 10. A drilling method, characterized in that it is applied to the drilling device according to claims 1 to 9, the method comprising: Make a round hole on the part to be processed, the diameter of the round hole being smaller than the diameter of the drill hole to be processed on the part to be processed; Align the center of the gear set with the center of the circular hole, a plurality of the tines fit with the workpiece to be processed, and drive the gear set to rotate through a driving member, and the gear set drives the transmission chain Rotating around the gear set, the plurality of tines create the drilled holes on the piece to be processed. 11. The drilling method according to claim 10, characterized in that the gear set includes a first gear whose axis coincides with the center line of the accommodation space, and the axis of the first gear is provided with a In the case of positioning pins, align the center of the gear set with the center of the circular hole, including: By inserting the positioning pin into the circular hole, the center of the gear set is aligned with the center of the circular hole.