CN215966391U - Drilling device with controllable depth and machine tool comprising drilling device - Google Patents

Abstract

The utility model discloses a drilling device with controllable depth and a machine tool comprising the drilling device, and relates to the technical field of mechanical manufacturing. The utility model relates to a drilling device with controllable depth, which comprises a sliding device, a first guide rail and a second guide rail, wherein the sliding device comprises a first sliding plate and a first driving device; a drilling part connected to the second slide plate through a connecting mechanism; the pressing locking device comprises a supporting block, a second driving device, a pressing plate and a locking device, the supporting block is arranged at the bottom of the connecting mechanism, the second driving device is arranged on the supporting block, the second driving device drives the connecting rod to penetrate through the supporting block and be connected to the pressing plate, an optical axis is arranged on the pressing plate, the optical axis extends towards one end of the supporting block and penetrates through the supporting block, and the locking device is arranged on the optical axis. The depth-controllable drilling device has the characteristics of automatic compression, convenience and adjustability, safety, reliability, accurate and controllable drilling depth and the like.

Description

Drilling device with controllable depth and machine tool comprising drilling device

Technical Field

The utility model belongs to the technical field of machine manufacturing, and particularly relates to a depth-controllable drilling device and a machine tool comprising the same.

Background

Along with the rapid development of equipment manufacturing industry, more and more people choose to use numerical control automatic drilling equipment to replace manual drilling operation to improve production efficiency, improve product precision and quality, reduce the cost of labor. The numerical control automatic drilling machine mostly sets drilling depth parameters through a Z-axis tool setting program, so that the depths of parts of workpieces with large errors in flatness are not uniform during drilling and machining, and the machining requirements cannot be met. For example, in the drilling operation in the manufacturing process of building templates, a stepped drill is used for drilling holes in the panel and the bottom frame simultaneously, and simultaneously, counterbores of rivets or dovetails are drilled in the panel. The panel and the bottom frame are often warped and deformed, and the depth of a counter bore has large deviation when drilling operation is carried out in a mode of setting the drilling depth through a Z-axis tool setting program, so that the mounted rivet or dovetail nail protrudes or sinks too much, and the overall quality of the template is influenced.

At present, the method for solving the problem of non-uniform drilling depth is a method for setting drilling depth parameters by respectively setting cutters. When the number of drilled holes on the workpiece is large and the flatness errors are inconsistent, a large amount of time is consumed in the mode, the operation is complex and tedious, and the machining efficiency is extremely low. Therefore, there is a need to provide a drilling device with a controllable depth to solve the above-mentioned drawbacks of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a drilling device with controllable depth and a machine tool comprising the drilling device, which are used for solving the technical problem that the drilling equipment in the prior art has nonuniform depth when drilling and processing workpieces with large errors in flatness.

To solve the above technical problem, the present invention provides a drilling apparatus with a controllable depth, comprising:

the sliding device comprises a first sliding plate, a second sliding plate and a first driving device, wherein a first guide rail is arranged on the first sliding plate, the first guide rail is arranged along the plate body direction of the first sliding plate, the first driving device is arranged at one end of the first sliding plate, and the first driving device drives the second sliding plate to move on the first guide rail through a driving rod to be close to or far away from the other end of the first sliding plate;

a drilling portion connected to the second slide plate through a connection mechanism;

the pressing locking device comprises a supporting block, a second driving device, a pressing plate and a locking device, wherein the supporting block is arranged at the bottom of the connecting mechanism and located on two sides of the drilling portion, the second driving device is arranged on the supporting block, the second driving device drives the connecting rod to penetrate through the supporting block and be connected to the pressing plate, a through hole is formed in the pressing plate and corresponds to a drill bit of the drilling portion, an optical axis is arranged on the pressing plate, the optical axis extends towards one end of the supporting block and penetrates through the supporting block, and the locking device is arranged on the optical axis.

In one example of the present invention, the coupling mechanism includes a base plate and a mounting plate, the base plate and the mounting plate are disposed opposite to each other and coupled by a slide rail, the base plate is coupled to the second slide plate, and the mounting plate is coupled to the drilling portion.

In an example of the present invention, a buffer stop is disposed on the bottom plate, and the bottom of the mounting plate may abut against the buffer stop.

In an example of the present invention, a buffering top block is disposed on the mounting plate, and the buffering top block is located on the top of the mounting plate and extends to one side of the bottom plate.

In an example of the present invention, a buffer is disposed on a top of the bottom plate, and an elastic member of the buffer abuts against the buffer top block.

In an example of the present invention, the first driving device is a servo motor, and the driving rod is a ball screw.

In an example of the present invention, a connecting portion is disposed on a side of the second slide plate close to the first slide plate, the second slide plate is connected to the connecting portion, and the second slide plate is connected to the ball screw through the connecting portion.

In one example of the present invention, the second driving device is a cylinder or a hydraulic cylinder.

In an example of the present invention, a pressing block is disposed at a middle position of the pressing plate, and the through hole is disposed at a center of the pressing block.

The utility model also provides a machine tool, wherein the depth-controllable drilling device in any one embodiment is arranged on the machine tool.

According to the depth-controllable drilling device, the locking device is pressed, so that the drilling part is automatically locked by the locking device and can not continue to drill when the drilling part reaches the required drilling depth during the machining of the workpiece, and the drilling depth of the drilling device is kept consistent when the drilling device drills the workpiece with larger error in flatness. The drilling device with the controllable depth has the characteristics of automatic compression, convenience and adjustability, safety and reliability, accurate and controllable drilling depth and the like.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic three-dimensional structure diagram of the depth-controllable drilling device of the present invention.

Fig. 2 is a front view showing the structure of the depth-controllable drilling apparatus according to the present invention.

Fig. 3 is a schematic cross-sectional view along the direction a-a of the depth-controlled drilling apparatus according to the present invention.

Fig. 4 is a structural front view showing an initial state of a drilling part of the depth-controllable drilling apparatus according to the present invention.

FIG. 5 is a front view of the drilling portion of the depth-controlled drilling apparatus according to the present invention, which is in a state where the drilling portion reaches a predetermined depth of the drilled hole.

FIG. 6 is a structural sectional view of a state in which a drilling portion of the depth-controllable drilling apparatus according to the present invention reaches a set depth of a drilled hole.

Fig. 7 is a structural sectional view of the drilling part of the depth-controllable drilling device according to the present invention in a state of being compressed under a buffer when the drilling part reaches a set depth of a drilled hole.

In the drawings, the components represented by the respective reference numerals are listed below:

100 sliding device

110 first slide plate

111 first guide rail

120 first driving device

121 drive rod

130 second sliding plate

131 connecting part

132 first guide rail slider

200 drilling part

201 drill bit

300 pressing locking device

310 support block

311 flange linear bearing

320 second driving device

321 connecting rod

330 pressing plate

331 compact block

332 through hole

340 optical axis

341 locking device

400 connecting mechanism

410 bottom plate

411 buffer stop

412 second guide rail

420 mounting plate

421 buffer top block

422 second guide rail slide block

430 buffer

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Referring to fig. 1 to 7, the utility model provides a drilling device with controllable depth and a machine tool comprising the drilling device, which are used for solving the technical problem that the drilling equipment in the prior art has non-uniform depth when drilling and processing a workpiece with large error in flatness.

Referring to fig. 1 to 7, fig. 1 shows a three-dimensional structure diagram of the drilling apparatus with controllable depth, fig. 2 shows a structure front view of the drilling apparatus with controllable depth, fig. 3 shows a cross-sectional diagram of the drilling apparatus with controllable depth along a direction a-a, fig. 4 shows a structure front view of a drilling portion of the drilling apparatus with controllable depth in an initial state, fig. 5 shows a structure front view of the drilling portion of the drilling apparatus with controllable depth in a drilling set depth state, fig. 6 shows a structure cross-sectional diagram of the drilling portion of the drilling apparatus with controllable depth in a drilling set depth state, and fig. 7 shows a structure cross-sectional diagram of the drilling portion of the drilling apparatus with controllable depth in a buffered compression state when the drilling portion reaches the drilling set depth.

As shown in fig. 1 to 3, the drilling apparatus with controllable depth may include a sliding apparatus 100, a drilling portion 200, and a pressing locking apparatus 300.

As shown in fig. 1 to 3, the sliding device 100 includes a first slide plate 110, a first driving device 120, and a second slide plate 130 as a mechanism for driving a drilling portion 200 in the depth-controllable drilling apparatus. The first slide plate 110 is provided with a first guide rail 111, and the first guide rail 111 extends from one end of the first slide plate 110 to the other end along the plate body direction of the first slide plate 110. The first driving device 120 is disposed at one end of the first sliding plate 110, and the first driving device 120 is connected to the second sliding plate 130 through a driving rod 121 and drives the second sliding plate 130 to move on the first guide rail 111, so that the second sliding plate 130 approaches or departs from the other end of the first sliding plate 110. The second sliding plate 130 is provided with a first guide rail sliding block 132 for connecting with the first guide rail 111 of the first sliding plate 110. In an embodiment of the present invention, the first sliding plate 110 is provided with two first guide rails 111, the two first guide rails 111 are respectively symmetrically disposed on two sides of the first sliding plate 110, and the second sliding plate 130 is provided with two first guide rail sliders 132, where positions of the two first guide rail sliders 132 on the second sliding plate 130 correspond to positions of the two first guide rails 111 on the first sliding plate 110.

As shown in fig. 1 to 3, the drilling portion 200 is fixedly connected to the second slide plate 130 by a connection mechanism 400, and moves linearly with the second slide plate 130 driven by the first driving device 120.

As shown in fig. 1 to 3, the pressing and locking device 300 in the controlled depth drilling apparatus can help the drilling portion 200 to determine the drilling depth when drilling, and limit the drilling portion 200 to prevent the drill bit 201 from further drilling when the drilling portion 200 reaches the set working depth. The pressing and locking device 300 includes a supporting block 310, a second driving device 320, a pressing plate 330, an optical axis 340, and a locking device 341. The supporting blocks 310 are disposed at the bottom of the connecting mechanism 400, the number of the supporting blocks 310 is two, the two supporting blocks 310 are respectively disposed at two sides of the drilling portion 200, the top of each of the two supporting blocks 310 is respectively provided with a second driving device 320, the driving connecting rods 321 of the two second driving devices 320 pass through the supporting blocks 310 and are connected to the pressing plate 330, and the pressing plate 330 can be driven to approach or separate from the supporting blocks 310 and the drill 201 while the pressing plate 330 is fixed. The pressing plate 330 is provided with a pressing block 331, the pressing block 311 is fixedly connected to the pressing plate 330 through a bolt, the center of the pressing block 311 is provided with a through hole 332, a groove is formed around the through hole 332, the through hole 332 corresponds to the drill bit 201 of the drilling portion 200 in position on the pressing plate 330, the groove is matched with a clamping body of the drill bit 201, when the drill bit 201 extends to the pressing plate 330, the clamping body of the drill bit 201 is blocked by the pressing block 331, and the drill bit 201 can completely pass through the through hole 332. The pressing plate 330 is further provided with an optical axis 340, the axial extension direction of the optical axis 340 is the same as the moving direction of the pressing plate 330, the optical axis 340 extends to the side close to the supporting block 310 and penetrates through the supporting block 310 to extend out of the flange linear bearing 311 arranged at the top of the supporting block 310, the optical axis 340 is further provided with a locking device 341, and the position of the locking device 341 on the optical axis 340 is adjustable.

As shown in fig. 1 to 3, in an embodiment of the present invention, the first driving device 120 is a servo motor, the driving rod 121 is a ball screw, one end of the ball screw is connected to the servo motor, and the non-threaded portion of the other end is rotatably disposed in the fixing hole of the first sliding plate 110.

As shown in fig. 1 to 3, in the present embodiment, a protruding connecting portion 131 is disposed on a side of the second slide plate 130 close to the first slide plate 110, the connecting portion 131 is disposed along a plate body direction of the second slide plate 130 and extends toward a side of the first slide plate 110, and a threaded hole is disposed on the connecting portion 131, the threaded hole is disposed along the plate body direction of the second slide plate 130 and matches with the ball screw. The second slide plate 130 is connected to the ball screw through the threaded hole of the connecting portion 131, and the servo motor of the first driving device 120 can drive the ball screw to rotate clockwise or counterclockwise to drive the second slide plate 120 connected to the ball screw to approach or leave the end of the first slide plate 110 away from the first driving device 120.

As shown in fig. 1 to 3, in an embodiment of the present invention, the second driving device 320 is an air cylinder or a hydraulic cylinder, and the connecting rod 321 extending from the second driving device 320 and connected to the pressing plate 330 is a piston rod.

As shown in fig. 4 or fig. 5, before use, the depth of the drilling device with controllable depth may be set by adjusting the position of the locking device 341 on the optical axis 340, specifically, when the set depth is adjusted, the connecting rod 321 on the second driving device 320 may be retracted to drive the pressing plate 330 and the optical axis 340 on the pressing plate 330 and the locking device 341 to approach the supporting block 310, until the locking device 341 collides with the supporting block 310 to limit the retraction stroke of the connecting rod 321, and then the position of the locking device 341 on the optical axis 340 is adjusted to set the distance between the tip of the drill 201 and the bottom of the pressing block 331 as the set depth D of the drilling device. In addition, the origin point can be calibrated at any position of the workpiece in the drilling program, since the workpiece has a flatness error, coordinate offset (the offset distance can be determined according to the flatness error of the workpiece, and the offset distance is slightly larger than the flatness error) needs to be performed on the basis of the calibrated origin point, and after the drilling depth is set, the second driving device 320 is adjusted to the extending state of the connecting rod 321.

As shown in fig. 1 and 3, in an embodiment of the present invention, the connection mechanism 400 includes a base plate 410 and a mounting plate 420, and the base plate 410 and the mounting plate 420 are disposed opposite to each other and connected by a sliding rail. The base plate 410 is fixedly coupled to the second slide plate 130, the mounting plate 420 is fixedly coupled to the drilling portion 200, and the slide device 100 and the drilling portion 200 are communicated with each other by the installation of the coupling mechanism 400 according to the installation method. The bottom plate 410 is provided with a second guide rail 412, the second guide rail 412 is arranged along the plate body direction of the bottom plate 410, the mounting plate 420 is provided with a second guide rail slider 422 at a position corresponding to the second guide rail 412 on the bottom plate 410, the mounting plate 420 can be mounted on the second guide rail 412 of the bottom plate 410 through the second guide rail slider 422, and the mounting plate 420 can slide relative to the bottom plate 410 along the direction of the second guide rail 412.

As shown in fig. 1 and 3, in the present embodiment, the bottom plate 410 is provided with a buffer stop 411, and the buffer stop 411 is located at the bottom of the bottom plate 410 and extends toward the bottom plate of the mounting plate 420 until the bottom of the mounting plate 420 can abut against the buffer stop 411. The buffer stop 411 is disposed to stop the mounting plate 420 at the bottom of the base plate 410, and prevent the mounting plate 420 from freely sliding on the second guide rail 412 and being removed from the second guide rail 412.

As shown in fig. 1 and 3, in the present embodiment, the mounting plate 420 is provided with a buffering top block 421, and the buffering top block 421 is located on the top of the mounting plate 420 and extends to the bottom plate 410 side to a position contacting the bottom plate 410.

As shown in fig. 1 and 3, in the present embodiment, a buffer 430 is disposed on a top of the bottom plate 410, and an elastic member is disposed on a bottom of the buffer 430, and the elastic member can be abutted against the buffering top block 421, and can be deformed to perform an elastic buffering function.

In the above embodiment, the output value of the second driving device 320 is equal to or less than the output value of the buffer 430, and the output value of the buffer 430 is equal to or less than the output value of the first driving device 120.

As shown in fig. 6 and 7, as can be seen from the above, when the drilling device for setting the required depth of drilling is used for drilling, the drill 201 on the drilling portion 200 can be driven by the first driving device 120 to move vertically towards the workpiece, the pressing block 331 first contacts and presses the workpiece, and when the locker 341 on the optical axis 340 contacts with the bottom of the supporting block 310, the drill 201 reaches the set drilling depth D in the workpiece, if the drilling position is the highest point of the workpiece, the servomotor will continue to drive the second sliding plate 130 to move because the feeding parameter set by the program has not been reached, and at this time, the locker 341 will contact and abut against the supporting block 310, and the drilling depth will not change any more. Then, as the second sliding plate 130 continues to move, the buffering top block 421 at the top of the mounting plate 420 connected to the drilling portion 200 compresses the elastic component of the buffer 430, so that the mounting plate 420 and the bottom plate 410 slide relatively, and the relative sliding distance L is generated to offset the error of the flatness of the workpiece, thereby ensuring the uniformity of the drilling depth and avoiding the alarm fault of the first driving device 120 due to the increase of the load.

After the drill 201 reaches the feeding parameters set by the program, the first driving device 120 drives the second sliding plate 130 to move in the opposite direction, the elastic component of the buffer 430 extends to push the mounting plate 2 to move until the lower part of the mounting plate is blocked by the buffer stop 411 and returns to the state incapable of freely sliding, the drill 201 is separated from the workpiece, the locking device 341 leaves the supporting block 310, the connecting rod 321 of the second driving device 320 extends completely, the drilling action is completed, and the drill returns to the initial state.

The utility model also provides a machine tool, wherein the machine tool is provided with the depth-controllable drilling device in any embodiment.

In summary, in the depth-controllable drilling apparatus of the present invention, the locking device 300 is pressed to automatically lock the drilling portion 200 by the locking device 341 when the drilling portion reaches the required drilling depth during the machining of the workpiece, so that the drilling depth of the drilling apparatus during the drilling of the workpiece with a large error in flatness is kept consistent. The drilling device with the controllable depth has the characteristics of automatic compression, convenience and adjustability, safety and reliability, accurate and controllable drilling depth and the like.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims (10)

1. A controlled depth drilling apparatus, comprising:

the sliding device comprises a first sliding plate, a second sliding plate and a first driving device, wherein a first guide rail is arranged on the first sliding plate, the first guide rail is arranged along the plate body direction of the first sliding plate, the first driving device is arranged at one end of the first sliding plate, the second sliding plate is connected to the first sliding plate in a sliding manner, and the first driving device drives the second sliding plate to move on the first guide rail to be close to or far away from the other end of the first sliding plate;

a drilling portion connected to the second slide plate through a connection mechanism;

the pressing locking device comprises a supporting block, a second driving device, a pressing plate and a locking device, wherein the supporting block is arranged at the bottom of the connecting mechanism and located on two sides of the drilling portion, the second driving device is arranged on the supporting block, the second driving device drives the connecting rod to penetrate through the supporting block and be connected to the pressing plate, a through hole is formed in the pressing plate and corresponds to a drill bit of the drilling portion, an optical axis is arranged on the pressing plate, the optical axis extends towards one end of the supporting block and penetrates through the supporting block, and the locking device is arranged on the optical axis.

2. A drilling apparatus according to claim 1, wherein the coupling mechanism comprises a base plate and a mounting plate, the base plate and the mounting plate being disposed opposite each other and coupled by a slide rail, the base plate being coupled to the second slide plate, and the mounting plate being coupled to the drilling portion.

3. A drilling apparatus according to claim 2 wherein a bump stop is provided on the base plate against which the bottom of the mounting plate can abut.

4. The controlled depth drilling apparatus of claim 2, wherein the mounting plate is provided with a buffering top block which is located at the top of the mounting plate and extends to one side of the bottom plate.

5. The drilling device with the controllable depth as claimed in claim 4, wherein the top of the bottom plate is provided with a buffer, and an elastic component of the buffer is abutted to the buffer top block.

6. A depth-controlled drilling apparatus as claimed in claim 1, wherein the first drive means is a servo motor and the drive rod is a ball screw.

7. A drilling device with controllable depth according to claim 6, wherein the second slide plate is provided with a connecting portion on a side thereof adjacent to the first slide plate, the second slide plate being connected to the connecting portion, and the second slide plate being connected to the ball screw through the connecting portion.

8. A depth controlled drilling apparatus as claimed in claim 1, wherein the second drive means is a pneumatic or hydraulic cylinder.

9. The drilling apparatus with controllable depth as claimed in claim 1, wherein the middle position of the pressing plate is provided with a pressing block, and the through hole is arranged at the center of the pressing block.

10. A machine tool having mounted thereon a depth controlled drilling apparatus as claimed in any one of claims 1 to 9.

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