CN114643375A

CN114643375A - Can avoid two-way drilling equipment of secondary clamping

Info

Publication number: CN114643375A
Application number: CN202210168229.0A
Authority: CN
Inventors: 陈小宝
Original assignee: Shanghai Weicheng Electronic Technology Co ltd
Current assignee: Shanghai Weicheng Electronic Technology Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-06-21

Abstract

The invention discloses bidirectional drilling equipment capable of avoiding secondary clamping, which belongs to the field of machining and comprises a base, wherein two drilling devices which are coaxial and oppositely arranged are arranged on the base; the workpiece clamping device comprises a fixed support, a rotating support and a pressing mechanism, the rotating support is rotatably connected onto the fixed support, a rotating locking mechanism is arranged between the rotating support and the fixed support, and the pressing mechanism is installed on the rotating support to press a workpiece arranged on the rotating support. The drilling machine is simple in structure and reasonable in design, and drilling operation can be performed on two sides of a workpiece through one-time clamping, so that a required through hole is drilled on the workpiece.

Description

Can avoid two-way drilling equipment of secondary clamping

Technical Field

The invention relates to the technical field of machining, in particular to a bidirectional drilling device capable of avoiding secondary clamping.

Background

In order to facilitate the installation and use of a workpiece, a hole is often required to be drilled in the workpiece, during the drilling operation, a clamping tool is usually used for clamping and fixing the tool, and then the hole is drilled in the workpiece through a drilling device, however, when the length of the hole is large and exceeds the drilling depth of the drilling device, the workpiece needs to be turned around and subjected to secondary clamping, so that the other side of the workpiece is subjected to secondary drilling, and the required hole is drilled in the workpiece through two drilling operations.

However, when the workpiece is turned around and is subjected to secondary clamping, errors are prone to occur, and therefore holes drilled in two times of drilling operations are not concentric, and the workpiece is scrapped. Therefore, it is necessary to develop a device for drilling a desired through hole in a workpiece without secondary clamping.

Disclosure of Invention

Aiming at the problem of axial deviation of a through hole caused by secondary clamping in the process of drilling a workpiece in the prior art, the invention aims to provide bidirectional drilling equipment capable of avoiding secondary clamping.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the bidirectional drilling equipment capable of avoiding secondary clamping comprises a base, wherein two drilling devices which are coaxial and oppositely arranged are mounted on the base, a workpiece clamping device is further mounted on the base between the two drilling devices, the workpiece clamping device and/or the drilling device is connected to the base in a sliding mode along the axial direction of the drilling device, and a sliding locking mechanism is arranged between the workpiece clamping device and/or the drilling device and the base;

the workpiece clamping device comprises a fixed support, a rotating support and a pressing mechanism; the rotating bracket is rotatably connected to the fixed bracket, and a rotating locking mechanism is arranged between the rotating bracket and the fixed bracket; the pressing mechanism is arranged on the rotating bracket to press the workpiece on the rotating bracket.

Preferably, the base is provided with a slide rail arranged along the axial direction of the drilling device, and the workpiece clamping device and/or the drilling device are/is provided with a sliding groove or a sliding block matched with the slide rail; the sliding locking mechanism is a locking screw A.

Preferably, the drilling device comprises a casing, a rotating shaft rotatably connected to the casing, a drill bit mounted on the rotating shaft, and a motor fixedly mounted in the casing and in driving connection with the rotating shaft.

Preferably, the drilling device is further provided with a feeding driving mechanism for driving the drilling device to slide relative to the base; the feeding driving mechanism comprises a hand wheel, a transmission nut, a transmission screw rod, a driving gear shaft, a driven gear and a bearing; wherein, the outer lane of bearing is fixed to be inlayed and is established in the mounting hole on the casing, coaxial and fixed mounting of drive nut is in the inner circle of bearing, driven gear with coaxial and fixed connection of drive nut, driving gear shaft rotatable coupling be in on the shaft hole of casing, just driving gear shaft with driven gear meshes mutually, hand wheel fixed mounting be in on the driving gear shaft, transmission lead screw fixed mounting be in on the base, just the transmission nut cover is established on the transmission lead screw.

Preferably, the feed driving mechanisms arranged on the two drilling devices share the same transmission screw rod.

Preferably, the rotating bracket comprises a base plate, a left side plate and a right side plate which are respectively arranged on the left side and the right side of the same side surface of the base plate, and the base plate is also provided with avoidance holes; the fixed support comprises a bottom plate, a left support plate and a right support plate, wherein the left support plate and the right support plate are respectively arranged on the left side and the right side of the top surface of the bottom plate;

the pressing mechanism comprises a plurality of pressing screws and pressing nuts, the pressing screws are fixed to the same side face of the substrate and surround the avoidance holes, and the pressing nuts are screwed on the pressing screws.

Preferably, the rotating bracket further comprises an insertion plate, the insertion plate is connected to the base plate in a sliding mode, the sliding direction of the insertion plate is parallel to the upper direction and the lower direction of the base plate, and a pushing baffle is arranged on the upper portion of the insertion plate.

Preferably, the rotary locking mechanism comprises a locking screw B screwed on the left side plate and/or the right side plate, and an arc-shaped through groove centered on the pivot is formed in the left support plate and/or the right support plate, and the arc-shaped through groove is matched with a rod part of the locking screw B.

Preferably, the axis of rotation of the rotary support is perpendicular to the axial direction of the drilling device.

Preferably, the axis of rotation of the rotating support is horizontal.

By adopting the technical scheme, due to the arrangement that the two drilling devices, the workpiece clamping device and/or the drilling device which are coaxial and oppositely arranged on the base are slidably connected on the base, the clamped workpiece can be drilled from two sides respectively by sliding the workpiece clamping device and/or the drilling device, so that secondary clamping is avoided, and holes drilled from two sides of the workpiece are concentric and coaxial; in addition, due to the arrangement of the rotatable rotary support in the workpiece clamping device, the included angle between the drill bit on the drilling device and the workpiece can be changed by rotating the rotary support, so that the workpiece can be well clamped and can be adjusted to a position suitable for drilling, for example, inclined plane or curved surface drilling can be performed.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

FIG. 4 is a front view of the workpiece clamping device of the present invention;

fig. 5 is a schematic cross-sectional view of the drilling apparatus of the present invention.

In the drawing, 1-base, 2-drilling device, 21-machine shell, 22-rotating shaft, 23-drill bit, 24-motor, 3-workpiece clamping device, 31-fixed support, 311-bottom plate, 312-left support plate, 313-right support plate, 32-rotating support, 321-base plate, 322-left side plate, 323-right side plate, 324-avoiding hole, 325-inserting plate, 326-pushing baffle, 327-cover plate, 33-pressing mechanism, 34-rotating locking mechanism, 341-locking screw B, 342-arc through groove, 35-pivot, 4-sliding locking mechanism, 5-feeding driving mechanism, 51-hand wheel, 52-driving nut, 53-driving screw rod, 54-driving gear shaft, 55-driven gear, 56-bearing.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on structures shown in the drawings, and are only used for convenience in describing the present invention, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the technical scheme, the terms "first" and "second" are only used for referring to the same or similar structures or corresponding structures with similar functions, and are not used for ranking the importance of the structures, or comparing the sizes or other meanings.

In addition, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two structures can be directly connected or indirectly connected through an intermediate medium, and the two structures can be communicated with each other. To those skilled in the art, the specific meanings of the above terms in the present invention can be understood in light of the present general concepts, in connection with the specific context of the scheme.

Example one

A bidirectional drilling device capable of avoiding secondary clamping is disclosed, as shown in figures 1-5, and comprises a base 1, a drilling device 2 and a workpiece clamping device 3.

The base 1 is configured into a rectangular plate-shaped structure, foot pads are arranged on four corners of one side of the bottom surface of the base, and the base is placed on the ground or a table when in use. Or the four corners of the base 1 are further provided with bolt holes so as to fix the base 1 on the ground or a table through bolts, thereby improving the structural stability of the equipment.

The drilling device 2 is used for drilling, and includes a housing 21, a rotating shaft 22, a drill 23, and a motor 24. The sliding block or the sliding groove is arranged on one side of the bottom surface of the machine shell 21, through holes for installing the rotating shaft 22 are respectively formed on the opposite sides of the two machine shells 21, so that the rotating shaft 22 can be rotatably connected to the machine shell 21 through a bearing, one end of the rotating shaft 22 extends into the machine shell 21, the other end of the rotating shaft 22 extends to the outside of the machine shell 21, and the drill bit 23 is arranged at one end of the rotating shaft 22, which is positioned at the outside of the machine shell 21. The motor 24 is fixedly installed inside the housing 21, and an output shaft of the motor 24 is mechanically connected to one end of the rotating shaft 22 inside the housing 21 through a coupling or a gear. Alternatively, in another embodiment, the shaft 22 may be omitted, and the output shaft of the motor 24 may extend directly out of the housing 21 and then be connected to the drill 23.

The above-mentioned drilling device 2 is provided with two, the output end of the drilling device 2 is the drill bit, and the axial direction of the drilling is defined as the axial direction of the drilling device 2. In the embodiment, the axial directions of the two drilling devices 2 are both parallel to the plate surface of the base 1, and the two drilling devices 2 are coaxially and oppositely arranged on one side of the top surface of the base 1. Wherein, fixed mounting has the slide rail on the base 1, and this slide rail is on a parallel with drilling equipment 2's axial direction, and then all dispose the slider that uses with this slide rail cooperation on two drilling equipment 2, perhaps set up the spout that uses with this slide rail cooperation on drilling equipment 2's casing to make two drilling equipment 2 can follow its axial direction and slide on base 1.

In addition, a sliding locking mechanism 4 is provided between each of the two drilling devices 2 and the base 1, for example, the sliding locking mechanism 4 is configured to be a locking screw a screwed on a housing of the drilling device 2, and the end of the locking screw a is pressed into contact with or separated from the base 1 or the slide rail, thereby achieving a position locking operation of the drilling device 2. Or the locking screw A can also be directly screwed on the sliding block.

In addition, in order to improve the gliding stationarity of drilling equipment 2, set up foretell slide rail and have two, two slide rails are parallel and arrange in the both sides of base 1 relatively, and every drilling equipment 2 all is connected with two slide rail cooperations to jamming appears when preventing drilling equipment 2 from moving.

The workpiece clamping device 3 is disposed between the two drilling devices 2, and the workpiece clamping device 3 is also connected to the base 1 in a sliding manner, i.e., the workpiece clamping device 3 is also provided with the slide block or the slide groove, so that the slide block or the slide groove is connected to the base 1 in a sliding manner by means of the slide rail. Accordingly, the above-described slide lock mechanism 4 is also provided between the work holding device 3 and the base 1 so as to lock the work holding device 3 after it has been slid to a predetermined position.

The workpiece holding device 3 specifically includes a fixed bracket 31, a rotating bracket 32, and a pressing mechanism 33. In this embodiment, the fixing bracket 31 includes a bottom plate 311, and a left support plate 312 and a right support plate 313 respectively disposed on the left and right sides of the top surface of the bottom plate 311, wherein the bottom plate 311 is parallel to the base 1, and the left support plate 312 and the right support plate 313 are perpendicular to the bottom plate 311. The base plate 311 is provided with the above-mentioned slide block or slide groove to facilitate the sliding connection thereof to the slide rail, and the above-mentioned slide lock mechanism 4 is also provided on the base plate 311. The rotating bracket 32 includes a base plate 321, and a left side plate 322 and a right side plate 323 respectively disposed on the left side and the right side of the same side of the base plate 321, wherein the left side plate 322 and the right side plate 323 are respectively rotatably connected to the left support plate 312 and the right support plate 313 through a pivot 35, and the base plate 321 is further provided with an avoiding hole 324, and the avoiding hole 324 is used for allowing the drill hole 23 of the drilling apparatus 2 to pass through without any obstacle. Further, in the present embodiment, the rotation axis of the rotating bracket 32 (the axis of the pivot shaft 35) is set to be perpendicular to the axial direction of the drilling device 2, and the rotation axis of the rotating bracket 32 is arranged horizontally.

It is understood that a rotation locking mechanism 34 is provided between the rotating bracket 32 and the fixed bracket 31. In this embodiment, the rotational locking mechanism 34 includes a locking screw B341 screwed on the left side plate 322 and/or the right side plate 323, and an arc through slot 342 centered on the pivot 35 is correspondingly formed on the left support plate 312 and/or the right support plate 313, wherein the slot width of the arc through slot 342 is adapted to the diameter of the rod portion of the locking screw B341.

The pressing mechanism 33 is mounted on the rotating frame 32 to press the workpiece placed on the rotating frame 32. In this embodiment, the pressing mechanism 33 includes a plurality of pressing screws fixed on the same side of the base 321 and distributed around the avoidance hole 324, and a pressing nut screwed on each pressing screw, for example, the pressing screws are configured in two and respectively located at the left and right sides of the avoidance hole 324, and when in use, after a workpiece is placed on the base 321, the workpiece can be pressed on the base 321 by screwing the pressing nut. Or, the pressing mechanism 33 further includes a pressing plate, two screw holes for the pressing screws to pass through are formed in the pressing plate, when the pressing plate is used, the pressing plate is sleeved on the two pressing screws through the two screw holes, and the workpiece can be pressed on the substrate 321 through the pressing plate after the two pressing nuts are screwed.

When the drilling tool is used, a workpiece is placed on the base plate 321, the workpiece is pressed through the pressing mechanism 33, the angle of the rotating support 32 is adjusted, the position of the workpiece to be drilled is opposite to the drill bit 23, and the position of the rotating support 32 is locked through the rotating locking mechanism 34; the positions of the workpiece clamping device 3 and the two drilling devices 2 on the base 1 are adjusted, so that the two drill bits 23 respectively approach the workpiece from two sides, and then the positions of the workpiece clamping device 3 and the two drilling devices 2 are locked through the sliding locking mechanism 4; the two drilling devices 2 are started in sequence, and the workpiece is respectively drilled from two sides, so that the required through hole is drilled in the workpiece without secondary clamping, and the through hole is not deflected.

In addition, it is understood that, on the basis of the above functions, in another embodiment, only two drilling devices 2 can be configured to slide on the base 1, while the workpiece clamping device 3 is configured to be immovable on the base 1, and the two drilling devices 2 are respectively operated to move when in use; alternatively, in another embodiment, two drilling devices 2 are arranged to be immovable, and the workpiece holding device 3 is arranged to slide on the base 1, so that the drilling can be performed on both sides of the workpiece in two times by moving the workpiece holding device 3 in use.

Example two

The difference from the first embodiment is that: it will be appreciated that in the above-described rotary support 32, the workpiece can be fed only from the upper side of the base plate 321, and can be moved into position in a sliding manner, and then can be pressed and fixed by the pressing mechanism 33.

Therefore, in the present embodiment, the rotation bracket 32 further includes an insertion plate 325, the insertion plate 325 is slidably connected to the base plate 321, for example, a sliding slot is formed on a surface of a side of the base plate 321 away from the left side plate 322 and the right side plate 323, the insertion plate 325 is slidably connected in the sliding slot, and the shapes of the cover plate and the insertion plate 325 are suitable for preventing the avoiding hole 324 from being blocked, for example, the insertion plate 325 is configured to be concave, two sliding slots are correspondingly formed on the surface of the base plate 321, and a sliding direction of the insertion plate 325 is parallel to an up-down direction of the base plate 321. Meanwhile, a push baffle 326 is arranged at the upper part of the insert plate 325, and when in use, the workpiece can be driven to move by pushing the push baffle 326.

Or, in another embodiment, a cover plate 327 covers a side of the base plate 321 away from the left side plate 322 and the right side plate 323, and a gap is formed between the cover plate 327 and the base plate 321, and the gap is used for accommodating the insert plate 325, so that the insert plate 325 can drive the workpiece to move on the base plate 321 by pushing the baffle 326 when moving in the gap.

EXAMPLE III

The difference from the first embodiment is that: in the first embodiment, the drilling device 2 needs to perform a feeding motion during operation, and in the first embodiment, the drilling device 2 can be manually pushed to move, and in the present embodiment, a feeding driving mechanism 5 for driving the drilling device 2 to slide relative to the base 1 is arranged on the drilling device 2.

The feeding driving mechanism 5 specifically includes a hand wheel 51, a transmission nut 52, a transmission screw 53, a driving gear shaft 54, a driven gear 55, and a bearing 56. The outer ring of the bearing 56 is fixedly embedded in the mounting hole of the housing 21, the transmission nut 52 is coaxially and fixedly mounted in the inner ring of the bearing 56, and two end surfaces of the transmission nut 52 protrude out of the end surfaces of the bearing 56, so that the driven gear 55 can be coaxially and fixedly connected to the end surface of the transmission nut 52. The driving gear shaft 54 is rotatably connected to the side wall of the housing 21 through another bearing, one end of the driving gear shaft 54 is located outside the housing 21 to facilitate the fixed installation of the hand wheel 51, and a gear portion of the driving gear shaft 54 is engaged with the driven gear 55. The transmission screw 53 is fixedly installed on the base 1, the transmission screw 53 is parallel to the axial direction of the drilling device 2, and the transmission nut 52 is screwed and sleeved on the transmission screw 53.

When the drilling device is used, the hand wheel 51 is shaken to drive the transmission nut 52 to rotate, and under the condition that the transmission screw rod 53 is fixed and immovable, the transmission nut 52 drives the machine shell 21 to slide along a sliding rail, so that the controlled movement of the drilling device 2 is realized, and the feeding amount of the drill bit 23 is controlled. And it can be understood that the feed driving mechanisms provided on the two drilling devices 2 share the same transmission screw 53, thereby reducing the number of parts arranged.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.

Claims

1. The utility model provides a can avoid two-way drilling equipment of secondary clamping which characterized in that: the drilling device comprises a base, wherein two drilling devices which are coaxial and oppositely arranged are arranged on the base, a workpiece clamping device is also arranged on the base between the two drilling devices, the workpiece clamping device and/or the drilling device is connected to the base in a sliding manner along the axial direction of the drilling device, and a sliding locking mechanism is arranged between the workpiece clamping device and/or the drilling device and the base;

2. The bi-directional drilling apparatus of claim 1, wherein: the base is provided with a sliding rail arranged along the axial direction of the drilling device, and the workpiece clamping device and/or the drilling device are/is provided with a sliding groove or a sliding block matched with the sliding rail; the sliding locking mechanism is a locking screw A.

3. The bi-directional drilling apparatus of claim 2, wherein: drilling equipment includes casing, rotatable coupling is in pivot on the casing, install epaxial drill bit and fixed mounting are in the casing and with the motor that the pivot drive is connected.

4. A bi-directional drilling apparatus according to claim 3, wherein: the drilling device is also provided with a feeding driving mechanism for driving the drilling device to slide relative to the base; the feeding driving mechanism comprises a hand wheel, a transmission nut, a transmission screw rod, a driving gear shaft, a driven gear and a bearing; wherein, the outer lane of bearing is fixed to be inlayed and is established in the mounting hole on the casing, coaxial and fixed mounting of drive nut is in the inner circle of bearing, driven gear with coaxial and fixed connection of drive nut, driving gear shaft rotatable coupling be in on the shaft hole of casing, just driving gear shaft with driven gear meshes mutually, hand wheel fixed mounting be in on the driving gear shaft, transmission lead screw fixed mounting be in on the base, just the transmission nut cover is established on the transmission lead screw.

5. The bi-directional drilling apparatus of claim 4, wherein: and the feeding driving mechanisms arranged on the two drilling devices share the same transmission screw rod.

6. The bi-directional drilling apparatus of claim 1, wherein: the rotary bracket comprises a base plate, a left side plate and a right side plate which are respectively arranged on the left side and the right side of the same side surface of the base plate, and the base plate is also provided with avoidance holes; the fixed bracket comprises a bottom plate, a left support plate and a right support plate which are respectively arranged on the left side and the right side of the top surface of the bottom plate, and the left side plate and the right side plate are respectively in rotatable connection with the left support plate and the right support plate through pivots;

7. The bi-directional drilling apparatus of claim 6, wherein: the rotary support further comprises a plug board, the plug board is connected to the base board in a sliding mode, the sliding direction of the plug board is parallel to the upper direction and the lower direction of the base board, and a pushing baffle is arranged on the upper portion of the plug board.

8. The bi-directional drilling apparatus of claim 6, wherein: the rotary locking mechanism comprises a locking screw B screwed on the left side plate and/or the right side plate, an arc-shaped through groove which takes the pivot as the center is formed in the left support plate and/or the right support plate, and the arc-shaped through groove is matched with the rod part of the locking screw B.

9. The bi-directional drilling apparatus of claim 6, wherein: the rotation axis of the rotating bracket is perpendicular to the axial direction of the drilling device.

10. The bi-directional drilling apparatus of claim 9, wherein: the rotation axis of the rotating bracket is horizontal.