CN210587312U - Depth and verticality limiting device for electric drill drilling - Google Patents
Depth and verticality limiting device for electric drill drilling Download PDFInfo
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- CN210587312U CN210587312U CN201921514381.XU CN201921514381U CN210587312U CN 210587312 U CN210587312 U CN 210587312U CN 201921514381 U CN201921514381 U CN 201921514381U CN 210587312 U CN210587312 U CN 210587312U
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Abstract
The depth and perpendicularity limiting device for electric drill drilling relates to the field of auxiliary devices of electric drills for motor train unit overhauling, and comprises a limiting cylinder positioning plate, two end portion level instrument groups, two connecting seats, at least four adjustable screw rods, at least four magnets, two middle portion level instrument groups, a plurality of limiting bearings and a plurality of drill bit limiting cylinders. The utility model ensures the verticality of the drill bit and does not influence the high-speed rotation of the electric drill, ensures the drilling depth of the drill bit, and the sucking disc can easily adsorb the limiting device of the utility model on the horizontal or vertical wall plate structure to be drilled, thereby realizing the rapid installation and positioning, and the magnet is used for enhancing the adhesive force of the device to ferromagnetic vertical plates; through the matching use of the end level instrument group and the middle level instrument group, the limiting device can be horizontally arranged on a vertical wall, so that the drilling operation in the horizontal direction is realized; the diameters of the lower parts of the inner walls of the drill bit limiting cylinders can be the same, and can also be sequentially increased or decreased so as to adapt to drill bits with different apertures.
Description
Technical Field
The utility model relates to a EMUs overhaul with the auxiliary device field of electric drill, concretely relates to degree of depth and the straightness stop device that hangs down of electric drill drilling.
Background
In the EMUs maintenance process, when the process need use the electric drill to drill, directly adopt manual drilling can have the straightness that hangs down that can't guarantee drilling, and lead to the bolt installation behind the cross hair can't reach the fastening requirement of fastener, the condition of breaking the bolt appears easily simultaneously. The manual drilling controls the drilling depth of the electric drill by depending on the experience of an operator and arm strength, and when a wire harness, a pipeline or other components exist in the advancing direction of the drill bit, the wire harness, the pipeline or other components are easily damaged. Therefore, it is urgently needed to provide a limiting device which can ensure the perpendicularity of the drilling axis of the electric drill and can limit the drilling depth of the drill bit.
SUMMERY OF THE UTILITY MODEL
In order to solve the manual drilling existence because of can't guarantee the straightness that hangs down of drilling and lead to the bolt installation can't reach the fastening requirement, and the condition of breaking the bolt appears easily to and rely on operator's experience and arm strength control electric drill's drilling depth completely, damage the technical problem of pencil, pipeline or other parts very easily, the utility model provides a degree of depth and the straightness stop device that hangs down that electric drill drilled.
The utility model provides a technical scheme as follows that technical problem took:
the limiting device for the drilling depth and the drilling verticality of the electric drill comprises a limiting cylinder positioning plate, two end level instrument groups, two connecting seats, at least four adjustable screw rods, at least four magnets, two middle level instrument groups, a plurality of limiting bearings and a plurality of drill bit limiting cylinders;
a plurality of secondary through holes are formed in the limiting cylinder positioning plate, and the inner diameter of a first-stage hole of each secondary through hole is larger than that of a second-stage hole;
the two end level groups are correspondingly fixed on the upper surfaces of the two connecting seats one by one, the two middle level groups are correspondingly fixed in the middle of the front end surface and the rear end surface of the limiting cylinder positioning plate one by one, each end level group and each middle level group are composed of two levels which are perpendicular to each other and form a T shape, a longitudinal level in each end level group and a transverse level in each middle level group are jointly used for measuring the levelness of the front inclination angle and the rear inclination angle of the limiting cylinder positioning plate, and a transverse level in each end level group and a longitudinal level in each middle level group are jointly used for measuring the levelness of the left inclination angle and the right inclination angle of the limiting cylinder positioning plate;
the two connecting seats are fixedly connected to the left end and the right end of the limiting cylinder positioning plate respectively, and each connecting seat is provided with at least two threaded holes from top to bottom;
the upper end of each adjustable screw rod is provided with threads, the lower end of each adjustable screw rod is a polished rod, the upper end of each adjustable screw rod is in threaded connection with a threaded hole of the connecting seat, and the lower end of each adjustable screw rod is in rotating connection with a corresponding magnet through a bearing;
the plurality of limiting bearings are correspondingly arranged in the first-stage holes of the plurality of second-stage through holes one by one, and the outer ring of each limiting bearing is in interference fit with the inner wall of each first-stage hole;
the outer wall of each drill bit limiting cylinder is of a three-stage cylindrical structure, the diameter of the outer wall of each drill bit limiting cylinder is sequentially reduced from top to bottom, the diameter of the first-stage cylindrical structure of the outer wall of each drill bit limiting cylinder is larger than the diameter of the outer ring of the corresponding limiting bearing, and the second-stage cylindrical structure of the outer wall of each drill bit limiting cylinder is placed inside the inner ring of the corresponding limiting bearing and is in interference fit with the inner wall of the inner ring of the limiting bearing; the third-stage cylindrical structure of the outer wall of each drill bit limiting cylinder penetrates through the second-stage hole corresponding to the second-stage through hole and is in clearance fit with the inner wall of the second-stage hole; the shape of the inner wall of each drill bit limiting cylinder is matched with the shape of a drill bit provided with an electric drill jacket, and the lower part of the inner wall of each drill bit limiting cylinder is in clearance fit with the outer wall of the drill bit.
The electric drill drilling depth and perpendicularity limiting device further comprises at least four suckers, and each sucker is correspondingly and fixedly connected to the lower end face of one magnet.
The diameters of the lower parts of the inner walls of the drill bit limiting cylinders are reduced in sequence.
The utility model has the advantages that: the verticality of the drill bit is guaranteed by the cooperation of the drill bit limiting cylinder, the limiting bearing and the limiting cylinder positioning plate, the high-speed rotation of the electric drill is not influenced, and the bearing is low in manufacturing cost and easy to replace; the adjustable screw rod is matched with the magnet/sucker, so that the drilling depth of the drill bit is ensured, the sucker can easily adsorb the limiting device of the utility model on a horizontal or vertical wall plate structure to be drilled, the rapid installation and positioning are realized, and the magnet is used for further enhancing the adhesive force of the device on ferromagnetic vertical plates; through the matching use of the end level instrument group and the middle level instrument group, the limiting device can be horizontally arranged on a vertical wall, so that the drilling operation in the horizontal direction is realized; the diameters of the lower parts of the inner walls of the drill bit limiting cylinders can be the same, and can also be sequentially increased or decreased so as to adapt to drill bits with different apertures.
Drawings
Fig. 1 is the utility model discloses the degree of depth and the straightness stop device that hangs down that electric drill bored a structural schematic diagram.
Fig. 2 is a schematic diagram of the exploded structure of fig. 1.
Fig. 3 is a front view schematically showing the structure of fig. 1.
Fig. 4 is an axial sectional structural schematic diagram of the positioning plate of the limiting cylinder of the present invention.
Fig. 5 is an axial sectional structural schematic view of the drill bit limiting cylinder of the present invention.
Fig. 6 is an axial sectional structural view of the assembled drill bit limiting cylinder, limiting bearing and limiting cylinder positioning plate.
Fig. 7 is an axial sectional structural view of the adjustable screw, the magnet and the suction cup after assembly.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 to 7, the utility model discloses the degree of depth and the straightness stop device that hangs down that electric drill bored includes: the device comprises a limiting cylinder positioning plate 1, two end level instrument groups 2, two connecting seats 3, four adjustable screws 4, four magnets 5, two middle level instrument groups 6, six limiting bearings 7, six drill bit limiting cylinders 8 and four suckers 9; six secondary through holes 1-1 are formed in the limiting cylinder positioning plate 1, and the inner diameter of a first-stage hole 1-1-1 of each secondary through hole 1-1 is larger than that of a second-stage hole 1-1-2; the six limiting bearings 7 are correspondingly arranged in the first-stage holes 1-1-1 of the six second-stage through holes 1-1 one by one, and the outer ring of each limiting bearing 7 is in interference fit with the inner wall of the first-stage hole 1-1-1.
Two tip spirit level group 2 one-to-one fixes the upper surface at two connecting seats 3, two middle part spirit level group 6 one-to-one fixes the middle part at two terminal surfaces around spacing section of thick bamboo locating plate 1, every tip spirit level group 2 and every middle part spirit level group 6 constitute by two spirit levels that mutually perpendicular becomes the T font, the horizontal levelness at the front and back inclination of spacing section of thick bamboo locating plate 1 is used for measuring jointly to vertical spirit level in the vertical spirit level in every tip spirit level group 2 and every middle part spirit level group 6, the horizontal levelness at the left and right inclinations of spacing section of thick bamboo locating plate 1 is used for measuring jointly to horizontal spirit level in every tip spirit level group 2 and the vertical spirit level in every middle part spirit level group 6.
The two connecting seats 3 are fixedly connected to the left end and the right end of the limiting cylinder positioning plate 1 through bolts respectively, and each connecting seat 3 is provided with two threaded holes from top to bottom; the upper end of each adjustable screw rod 4 is provided with a thread, the lower end of each adjustable screw rod 4 is a polished rod, the upper end of each adjustable screw rod 4 is in threaded connection with a threaded hole of the connecting seat 3, the lower end of each adjustable screw rod 4 is rotatably connected with a corresponding magnet 5 through a bearing, and each sucker 9 is correspondingly and fixedly connected to the lower end face of one magnet 5.
The outer wall of each drill bit limiting cylinder 8 is of a three-stage cylindrical structure, the diameter of the outer wall of each drill bit limiting cylinder 8 is sequentially reduced from top to bottom, the diameter of the first-stage cylindrical structure 8-1 of the outer wall of each drill bit limiting cylinder 8 is larger than the diameter of the outer ring of the corresponding limiting bearing 7, and the second-stage cylindrical structure 8-2 of the outer wall of each drill bit limiting cylinder 8 is placed inside the inner ring of the corresponding limiting bearing 7 and is in interference fit with the inner wall of the inner ring of the limiting bearing 7; the third-stage cylindrical structure 8-3 on the outer wall of each drill bit limiting cylinder 8 penetrates through the second-stage hole 1-1-2 corresponding to the second-stage through hole 1-1 and is in clearance fit with the inner wall of the second-stage hole 1-1-2; the shape of the inner wall of each drill bit limiting cylinder 8 is matched with that of a drill bit provided with an electric drill jacket, and the lower part of the inner wall of each drill bit limiting cylinder 8 is in clearance fit with the outer wall of the drill bit; the diameters of the lower parts of the inner walls of the six drill bit limiting cylinders 8 can be the same, and can also be sequentially increased or decreased so as to adapt to drill bits with different apertures.
When the limiting device for the drilling depth and the verticality of the electric drill is used, firstly, a drill bit limiting cylinder 8 and a drill bit with the appropriate inner wall diameter size are selected according to the aperture of the required drilled hole; then, the length of the adjustable screw rod 4 extending out of the connecting seat 3 is adjusted according to the depth of the required drilling hole; then inserting the selected bit limiting cylinder 8 into the limiting bearing 7 and the second-stage hole 1-1-2, coaxially limiting the rotation axis of the bit by the two, then firmly adsorbing the limiting device on a horizontal or vertical wall plate structure to be drilled through a sucking disc 9, wherein the magnet 5 is used for further enhancing the adhesive force of the device on ferromagnetic vertical plates, and determining the transverse or longitudinal levelness of the limiting cylinder positioning plate 1 by observing the states of the gradienters in the two end gradienter groups 2 and the two middle gradienter groups 6, so that the limiting device can be horizontally arranged on a vertical wall, and the drilling operation in the horizontal direction is realized; the utility model discloses a stop device installs the back that finishes, and the drill bit that will select passes through the electric drill and presss from both sides the cover to be fixed on the electric drill body, then passes the drill bit spacing section of thick bamboo 8 backs that correspond with the drill bit, drills in the position that needs drilling to ensure the degree of depth of drilling and the straightness that hangs down in hole and all meet the requirements.
Claims (3)
1. The limiting device for the drilling depth and the verticality of the electric drill is characterized by comprising a limiting cylinder positioning plate (1), two end part level instrument groups (2), two connecting seats (3), at least four adjustable screw rods (4), at least four magnets (5), two middle level instrument groups (6), a plurality of limiting bearings (7) and a plurality of drill bit limiting cylinders (8);
a plurality of secondary through holes (1-1) are formed in the limiting cylinder positioning plate (1), and the inner diameter of a first-stage hole (1-1-1) of each secondary through hole (1-1) is larger than that of a second-stage hole (1-1-2);
the two end level groups (2) are fixed on the upper surfaces of the two connecting seats (3) in a one-to-one correspondence manner, the two middle level groups (6) are fixed in the middle of the front end surface and the rear end surface of the limiting cylinder positioning plate (1) in a one-to-one correspondence manner, each end level group (2) and each middle level group (6) are composed of two levels which are perpendicular to each other and form a T shape, a longitudinal level in each end level group (2) and a transverse level in each middle level group (6) are jointly used for measuring the levelness of the front inclination angle and the rear inclination angle of the limiting cylinder positioning plate (1), and a transverse level in each end level group (2) and a longitudinal level in each middle level group (6) are jointly used for measuring the levelness of the left inclination angle and the right inclination angle of the limiting cylinder positioning plate (1);
the two connecting seats (3) are fixedly connected to the left end and the right end of the limiting cylinder positioning plate (1) respectively, and each connecting seat (3) is provided with at least two threaded holes from top to bottom;
the upper end of each adjustable screw rod (4) is provided with threads, the lower end of each adjustable screw rod (4) is a polished rod, the upper end of each adjustable screw rod (4) is in threaded connection with a threaded hole of the connecting seat (3), and the lower end of each adjustable screw rod (4) is rotatably connected with a corresponding magnet (5) through a bearing;
the plurality of limiting bearings (7) are correspondingly placed in the first-stage holes (1-1-1) of the plurality of second-stage through holes (1-1) one by one, and the outer ring of each limiting bearing (7) is in interference fit with the inner wall of the first-stage hole (1-1-1);
the outer wall of each drill bit limiting cylinder (8) is of a three-stage cylindrical structure, the diameter of the outer wall of each drill bit limiting cylinder (8) is sequentially reduced from top to bottom, the diameter of a first-stage cylindrical structure (8-1) of the outer wall of each drill bit limiting cylinder (8) is larger than the diameter of the outer ring of the corresponding limiting bearing (7), and a second-stage cylindrical structure (8-2) of the outer wall of each drill bit limiting cylinder (8) is placed inside the inner ring of the corresponding limiting bearing (7) and is in interference fit with the inner wall of the inner ring of the limiting bearing (7); the third-stage cylindrical structure (8-3) on the outer wall of each drill bit limiting cylinder (8) penetrates through the second-stage hole (1-1-2) corresponding to the second-stage through hole (1-1) and is in clearance fit with the inner wall of the second-stage hole (1-1-2); the shape of the inner wall of each drill bit limiting cylinder (8) is matched with the shape of a drill bit provided with an electric drill jacket, and the lower part of the inner wall of each drill bit limiting cylinder (8) is in clearance fit with the outer wall of the drill bit.
2. The electric drill hole depth and verticality limiting device of claim 1, further comprising at least four suction cups (9), wherein each suction cup (9) is correspondingly connected to the lower end surface of one magnet (5).
3. The electric drill hole drilling depth and verticality limiting device according to claim 1 or 2, wherein the diameters of the lower parts of the inner walls of the plurality of drill bit limiting cylinders (8) are sequentially reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921514381.XU CN210587312U (en) | 2019-09-11 | 2019-09-11 | Depth and verticality limiting device for electric drill drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921514381.XU CN210587312U (en) | 2019-09-11 | 2019-09-11 | Depth and verticality limiting device for electric drill drilling |
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| Publication Number | Publication Date |
|---|---|
| CN210587312U true CN210587312U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921514381.XU Active CN210587312U (en) | 2019-09-11 | 2019-09-11 | Depth and verticality limiting device for electric drill drilling |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247208A (en) * | 2020-09-16 | 2021-01-22 | 中车长春轨道客车股份有限公司 | Intelligent punching machine for line passing hole of motor train unit |
| CN113182554A (en) * | 2021-06-08 | 2021-07-30 | 海盐通用机械塑料包装厂 | Multiple simultaneous drilling device |
-
2019
- 2019-09-11 CN CN201921514381.XU patent/CN210587312U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247208A (en) * | 2020-09-16 | 2021-01-22 | 中车长春轨道客车股份有限公司 | Intelligent punching machine for line passing hole of motor train unit |
| CN113182554A (en) * | 2021-06-08 | 2021-07-30 | 海盐通用机械塑料包装厂 | Multiple simultaneous drilling device |
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