CN211052633U - Drill bit capable of controlling drilling depth - Google Patents
Drill bit capable of controlling drilling depth Download PDFInfo
- Publication number
- CN211052633U CN211052633U CN201922208450.0U CN201922208450U CN211052633U CN 211052633 U CN211052633 U CN 211052633U CN 201922208450 U CN201922208450 U CN 201922208450U CN 211052633 U CN211052633 U CN 211052633U
- Authority
- CN
- China
- Prior art keywords
- dish
- depthkeeping
- drill
- drill bit
- drilling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 47
- 230000006978 adaptation Effects 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model provides a drill bit capable of controlling the drilling depth, which comprises a drill handle and a drill rod, wherein the outer wall of the drill rod is provided with an adjusting thread; still include depthkeeping mechanism and buffer gear, depthkeeping mechanism includes depthkeeping dish, lock nut with drilling rod threaded connection and the spacing dish that links to each other with the depthkeeping dish bottom, lock nut depthkeeping dish sets up towards drillstock one side relatively, spacing bottom of the plate portion is equipped with the mounting hole, buffer gear includes the spheroid that is the point contact with mounting hole looks adaptation and with drilling object surface and is located the spring that offsets with the spheroid in the mounting hole, the relative mounting hole of spheroid is rotatable, the other end and the depthkeeping dish of spring offset, buffer gear is equipped with a plurality of, and the central axis circumference of relative spacing dish sets up and compares current drill bit, the utility model discloses can adjust drilling depth as required and can be applicable to batch drilling.
Description
Technical Field
The utility model relates to an alloy drill bit technical field, concretely relates to drill bit of steerable drilling depth.
Background
The drill bit is a drillable rod made of alloy material. However, the existing drill bit cannot control the drilling depth, so that when a user drills a hole, the drilling depth cannot be controlled, if the hole is drilled too deep, the wall body can be damaged, and if the hole is drilled too shallow, the drilling operation needs to be carried out again. If when through bench drill or manual control drilling depth, need incessantly look over bench drill scale or measure drilling depth for processing becomes to waste time and energy, and the cost of labor rises by a wide margin, also appears the inconsistent condition of hole depth error simultaneously easily.
SUMMERY OF THE UTILITY MODEL
Based on the problem, the utility model aims to provide a can adjust drilling depth as required and can be applicable to the drill bit of batch drilling.
Aiming at the problems, the following technical scheme is provided: a drill bit capable of controlling the drilling depth comprises a drill handle and a drill rod, wherein the outer wall of the drill rod is provided with an adjusting thread; still include depthkeeping mechanism and buffer gear, depthkeeping mechanism includes depthkeeping dish, lock nut with drilling rod threaded connection and the spacing dish that links to each other with the depthkeeping dish bottom, lock nut sets up towards drillstock one side depthkeeping dish relatively, spacing bottom of the plate portion is equipped with the mounting hole, buffer gear includes and is the spheroid of point contact and is located the spring that offsets with the spheroid in the mounting hole with mounting hole looks adaptation and with ground, the relative mounting hole of spheroid is rotatable, the other end and the depthkeeping dish of spring offset, buffer gear is equipped with a plurality of, and the central axis circumference setting of relative spacing dish.
In the structure, through adjusting the set depth disc on the drilling rod, and carry out two nut butt control positions through lock nut, thereby make spheroid and object surface contact counterbalance realize the depthkeeping and reduce the friction that the set depth disc received after the drill bit bores into the object, be applicable to all kinds of metals, the drilling depthkeeping on the objects such as timber, when the set depth disc is close to the object surface simultaneously, the smear metal still can be followed and discharged in the screw in the middle of spiral chip groove and the set depth disc, the drill bit jamming circumstances such as that effectively avoid the chip removal difficulty to cause take place. When can make spheroid and object surface contact through setting up buffer gear, receive pressure through the spring, compress, reduce the power that the depthkeeping dish received to prolonged the life of depthkeeping dish, and through spheroidal rotation, can reduce frictional force by a wide margin, can avoid the depthkeeping dish to lead to the circumstances such as scotch with object surface contact friction to take place simultaneously. The stress can be effectively dispersed by the point contact of the sphere and the surface of the object.
The utility model discloses further set up to, the depthkeeping dish includes the connecting portion with drilling rod threaded connection and the location portion that links to each other with connecting portion, location portion all is greater than the external diameter of drilling rod with the centre bore diameter of spacing dish.
Adopt above-mentioned structure, can reduce the wearing and tearing of adjusting the screw thread between deep-drawing dish and the drilling rod to can prolong the life of drilling rod, improve the utility model discloses a reliability.
The utility model discloses further set up to, the bottom of location portion is equipped with the open slot, spacing dish is with the open end looks adaptation of open slot, be equipped with the spliced pole on the spacing dish, first screw has been seted up on the axial direction of spliced pole, set up the shoulder hole corresponding with first screw on the location portion, be equipped with the bolt with first screw threaded connection in the shoulder hole.
In the structure, the size of the depth setting mechanism can be reduced by arranging the open slot, so that the convenience of the depth setting mechanism is improved. The connecting strength between the limiting disc and the positioning part can be improved by arranging the connecting column, so that the reliability of the buffer mechanism is improved. Through setting up the installation that the shoulder hole can be convenient for the bolt, thereby improved the utility model discloses a reliability.
The utility model discloses further set up to, be equipped with the cover in the open slot and locate the outside position sleeve of spliced pole.
In the structure, can improve the joint strength between positioning disk and the spacing dish through setting up the position sleeve, improve the stress intensity of depthkeeping mechanism, thereby improved the utility model discloses a reliability.
The utility model discloses further set up to, the thickness of spacing dish is less than the degree of depth of open slot, be equipped with the reference column corresponding with the mounting hole in the open slot, the reference column is equipped with spacing post towards spheroidal one end, the spring housing is located on spacing post and is offseted with reference column terminal surface.
In the structure, the spring can be limited by arranging the positioning column and the limiting column, so that the spring is prevented from being separated, and the reliability of the buffer mechanism is improved. After the spheroid offsets with the object surface, the spring is compression state, but spheroid and spacing post contactless to can make the spheroid be in the state of protrusion in spacing dish always, improved the life of deep-setting dish. Thickness through spacing dish is less than the degree of depth of open slot, can avoid spacing dish protrusion in the depthkeeping dish to avoided spacing dish and object surface to contact, improved the utility model discloses a reliability.
The utility model discloses further set up to, be equipped with the lug that two relative central axis symmetries set up on lock nut's the outer periphery wall.
In the structure, can convenient to use person rotate lock nut through setting up the lug, thereby improved the utility model discloses a convenience.
The utility model discloses further set up to, it is trapezoidal thread to adjust the screw thread, and its crest width is greater than the root width.
In the structure, the crest of the adjusting thread can be used as a secondary cutting edge to finish the inner wall of the counter bore or the blind hole.
The utility model discloses further set up to, the second screw has been seted up towards the drilling rod bottom on the axial direction of drillstock, be equipped with the T type pole with second screw threaded connection on the drillstock.
In the structure, through setting up the second screw, can be when the drilling rod fracture is downthehole at the brill, take out the T type pole on the drillstock, twist the second screw from fracture department, take out cracked drilling rod through T type end, avoided the user to be difficult to the problem of taking out cracked drilling rod from downthehole, thereby improved the utility model discloses a convenience and reliability.
The utility model discloses further set up to, the recess with T type pole looks adaptation is seted up on the top of drillstock.
In the structure, the installation of T type pole can be convenient for through setting up the recess to can avoid influencing the drillstock and cooperate with the rig, improve the utility model discloses a reliability.
The utility model has the advantages that: compare current drill bit, the utility model discloses a set up depthkeeping mechanism and can control drilling depth to can adjust according to user's demand, and can punch in batches, the deviation of the degree of depth in every hole is less, has improved the utility model discloses a reliability. When can make spheroid and object surface contact through setting up buffer gear, receive pressure through the spring, compress, reduce the power that the depthkeeping dish received to prolonged the life of depthkeeping dish, and through spheroidal rotation, can reduce frictional force by a wide margin, can avoid the depthkeeping dish to lead to the circumstances such as scotch with object surface contact friction to take place simultaneously. Cooperate through setting up the second screw and T type pole, can take out downthehole drilling rod when the drilling rod fracture, improve the utility model discloses a convenience and reliability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the middle depth-fixing mechanism of the present invention.
Fig. 3 is the utility model discloses well depthkeeping dish and spacing dish split structure schematic diagram.
Fig. 4 is a schematic structural view of the middle depth-setting plate of the present invention.
Fig. 5 is a top view of the depth-setting plate of the present invention.
Fig. 6 is a cross-sectional view a-a of fig. 5.
Fig. 7 is a sectional view of B-B in fig. 5.
Fig. 8 is a partial sectional structural view of the present invention.
The reference numbers in the figures mean: 1-a drill shank; 2-a drill rod; 3-a depth setting mechanism; 4-a buffer mechanism; 31-a depth setting disc; 32-a lock nut; 33-a limiting disc; 331-mounting holes; 41-sphere; 42-a spring; 311-a connecting part; 312-a positioning section; 5-an open slot; 6-connecting a column; 61-a first screw hole; 7-a stepped hole; 71-bolts; 51-a positioning sleeve; 8-a positioning column; 81-limiting columns; 321-a bump; 21-a second screw hole; 9-T shaped bar; 11-grooves.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The drill bit capable of controlling the drilling depth as shown in fig. 1 to 8 comprises a drill shank 1 and a drill rod 2, wherein the outer wall of the drill rod 2 is provided with an adjusting thread; still include depthkeeping mechanism 3 and buffer gear 4, depthkeeping mechanism 3 includes depthkeeping dish 31, lock nut 32 with 2 threaded connection of drilling rod and the spacing dish 33 that links to each other with depthkeeping dish 31 bottom, lock nut 32 sets up towards drill holder 1 one side relatively, spacing dish 33 bottom is equipped with mounting hole 331, buffer gear 4 includes and is the spheroid 41 of point contact and is located the spring 42 that offsets with spheroid 41 in mounting hole 331 with mounting hole 331 looks adaptation and with ground, spheroid 41 is rotatable relatively to mounting hole 331, the other end and the depthkeeping dish 31 of spring 42 offset, buffer gear 4 is equipped with a plurality of, and the central axis circumference setting of relative spacing dish 33.
In the structure, through adjusting the depth setting disc 31 on the drill rod 2, and carry out two nut butt control positions through lock nut 32, thereby make spheroid 41 offset with object surface contact realize the depthkeeping and reduce the friction that the depth setting disc 31 received after the drill bit bores the object, be applicable to various metals, the drilling depthkeeping on the object such as timber, simultaneously when the depth setting disc 31 is close to the object surface, the smear metal still can be followed and discharged in the screw in the middle of spiral chip groove and the depth setting disc 31, effectively avoid the circumstances such as drill bit jamming that the chip removal difficulty caused to take place. When can make spheroid 41 and object surface contact through setting up buffer gear 4, receive pressure through spring 42, compress, reduce the power that the set depth dish 31 received to the life of set depth dish 31 has been prolonged, and the rotation through spheroid 41 can reduce frictional force by a wide margin, can avoid set depth dish 31 and object surface contact friction to lead to the condition such as scotch to take place simultaneously. The stress can be effectively dispersed by the point contact of the sphere 41 with the surface of the object.
In this embodiment, the depth setting disc 31 includes a connecting portion 311 connected to the drill rod 2 by a thread and a positioning portion 312 connected to the connecting portion 311, and the diameters of the central holes of the positioning portion 312 and the limiting disc 33 are both greater than the outer diameter of the drill rod 2.
Adopt above-mentioned structure, can reduce the wearing and tearing of adjusting the screw thread between deep plate 31 and drilling rod 2 to can prolong the life of drilling rod 2, improve the utility model discloses a reliability.
In this embodiment, the bottom of the positioning portion 312 is provided with an open slot 5, the limiting disc 33 is matched with the open end of the open slot 5, the limiting disc 33 is provided with a connecting column 6, the connecting column 6 is provided with a first screw hole 61 in the axial direction, the positioning portion 312 is provided with a stepped hole 7 corresponding to the first screw hole 61, and a bolt 71 in threaded connection with the first screw hole 61 is arranged in the stepped hole 7.
In the structure, the size of the depth setting mechanism 3 can be reduced by arranging the opening groove 5, so that the convenience of the depth setting mechanism 3 is improved. The connecting column 6 is arranged to improve the connecting strength between the limiting disc 33 and the positioning part 312, so that the reliability of the buffer mechanism 4 is improved. The installation of bolt 71 can be convenient for through setting up shoulder hole 7, thereby has improved the utility model discloses a reliability.
In this embodiment, a positioning sleeve 51 sleeved outside the connecting column 6 is disposed in the opening slot 5.
In the structure, can improve the joint strength between positioning disk and the spacing dish 33 through setting up position sleeve 51, improve depthkeeping mechanism 3's stress intensity, thereby improved the utility model discloses a reliability.
In this embodiment, the thickness of the limiting disc 33 is smaller than the depth of the open slot 5, a positioning column 8 corresponding to the mounting hole 331 is arranged in the open slot 5, a limiting column 81 is arranged at one end of the positioning column 8 facing the sphere 41, and the spring 42 is sleeved on the limiting column 81 and abuts against the end face of the positioning column 8.
In the above structure, the positioning column 8 and the limiting column 81 are arranged to limit the spring 42, so that the spring is prevented from being disengaged, and the reliability of the buffer mechanism 4 is improved. After the sphere 41 abuts against the surface of the object, the spring 42 is in a compressed state, but the sphere 41 is not in contact with the limiting column 81, so that the sphere 41 can be always in a state of protruding out of the limiting disc 33, and the service life of the depth setting disc 31 is prolonged. Thickness through spacing dish 33 is less than the degree of depth of open slot 5, can avoid spacing dish 33 protrusion in deep setting dish 31 to avoided spacing dish 33 to contact with the object surface, improved the utility model discloses a reliability.
In this embodiment, the locking nut 32 has two protrusions 321 symmetrically disposed with respect to the central axis thereof on the outer circumferential wall.
In the structure, the locking nut 32 can be rotated by the user conveniently by arranging the convex block 321, thereby improving the convenience of the utility model.
In this embodiment, the adjusting screw thread is a trapezoidal screw thread, and the width of the crest is greater than the width of the root.
In the structure, the crest of the adjusting thread can be used as a secondary cutting edge to finish the inner wall of the counter bore or the blind hole.
In this embodiment, a second screw hole 21 is formed in the drill shank 1 in the axial direction toward the bottom end of the drill rod 2, and a T-shaped rod 9 in threaded connection with the second screw hole 21 is arranged on the drill shank 1.
In the structure, through setting up second screw 21, can break at drilling rod 2 when the downthehole of boring, take out T type pole 9 on the drillstock 1, twist second screw 21 from the fracture department, take out cracked drilling rod 2 through T type end, avoided the user to be difficult to the problem of taking out cracked drilling rod 2 from the downthehole, thereby improved the utility model discloses a convenience and reliability.
In this embodiment, the top end of the drill shank 1 is provided with a groove 11 adapted to the T-shaped rod 9.
In the structure, through setting up the installation that the recess 11 can be convenient for T type pole 9 to can avoid influencing that drillstock 1 cooperatees with the rig, improve the utility model discloses a reliability.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations of the above assumption should also be regarded as the protection scope of the present invention.
Claims (9)
1. A drill bit capable of controlling the drilling depth comprises a drill handle and a drill rod, and is characterized in that: the outer wall of the drill rod is provided with an adjusting thread; still include depthkeeping mechanism and buffer gear, depthkeeping mechanism includes depthkeeping dish, lock nut with drilling rod threaded connection and the spacing dish that links to each other with depthkeeping dish bottom, lock nut sets up towards drillstock one side depthkeeping dish relatively, spacing dish bottom is equipped with the mounting hole, buffer gear includes the spheroid that is the point contact with mounting hole looks adaptation and with drilling object surface and is located the spring that offsets with the spheroid in the mounting hole, the relative mounting hole of spheroid is rotatable, the other end and the depthkeeping dish of spring offset, buffer gear is equipped with a plurality of, and the central axis circumference setting of spacing dish relatively.
2. A drill bit capable of controlling a drilling depth according to claim 1, wherein: the depth setting disc comprises a connecting part in threaded connection with the drill rod and a positioning part connected with the connecting part, and the diameters of the positioning part and the center hole of the limiting disc are larger than the outer diameter of the drill rod.
3. A drill bit capable of controlling a drilling depth according to claim 2, wherein: the bottom of location portion is equipped with the open slot, spacing dish is equipped with the spliced pole with the open end looks adaptation of open slot, spacing dish is equipped with the spliced pole, seted up first screw on the axial direction of spliced pole, set up the shoulder hole corresponding with first screw on the location portion, be equipped with the bolt with first screw threaded connection in the shoulder hole.
4. A drill bit capable of controlling the depth of a drilled hole according to claim 3, wherein: and a positioning sleeve sleeved outside the connecting column is arranged in the open slot.
5. A drill bit capable of controlling the depth of a drilled hole according to claim 4, wherein: the thickness of spacing dish is less than the degree of depth of open slot, be equipped with the reference column that corresponds with the mounting hole in the open slot, the reference column is equipped with spacing post towards spheroidal one end, the spring housing is located on spacing post and is supported with the reference column terminal surface.
6. A drill bit capable of controlling a drilling depth according to claim 1, wherein: and the outer circumferential wall of the locking nut is provided with two lugs which are symmetrically arranged relative to the central axis thereof.
7. A drill bit capable of controlling a drilling depth according to claim 1, wherein: the adjusting thread is a trapezoidal thread, and the width of the tooth top of the adjusting thread is larger than that of the tooth bottom of the adjusting thread.
8. A drill bit capable of controlling a drilling depth according to claim 1, wherein: and a second screw hole is formed in the axial direction of the drill handle towards the bottom end of the drill rod, and a T-shaped rod in threaded connection with the second screw hole is arranged on the drill handle.
9. A drill bit capable of controlling a drilling depth according to claim 8, wherein: the top end of the drill handle is provided with a groove matched with the T-shaped rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922208450.0U CN211052633U (en) | 2019-12-09 | 2019-12-09 | Drill bit capable of controlling drilling depth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922208450.0U CN211052633U (en) | 2019-12-09 | 2019-12-09 | Drill bit capable of controlling drilling depth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211052633U true CN211052633U (en) | 2020-07-21 |
Family
ID=71589689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922208450.0U Expired - Fee Related CN211052633U (en) | 2019-12-09 | 2019-12-09 | Drill bit capable of controlling drilling depth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211052633U (en) |
-
2019
- 2019-12-09 CN CN201922208450.0U patent/CN211052633U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6524034B2 (en) | Tool tip and tool body assembly | |
| US4089357A (en) | Threaded fastener | |
| US7568866B2 (en) | Cutting tool | |
| US4043409A (en) | Drill steel for deep drill hammers | |
| RU2683464C1 (en) | Knot of tooth excavator with node locking pin | |
| CA2484602A1 (en) | Rotary cutting tool comprising an exchangeable cutting insert | |
| WO2010081394A1 (en) | Self-tightening drill chuck | |
| CN211052633U (en) | Drill bit capable of controlling drilling depth | |
| US4280742A (en) | Wall contacting tool | |
| US4413689A (en) | Plural-part earth bit, and an improved bit head therefor | |
| CN212169099U (en) | Drill bit | |
| US4702485A (en) | Percussion drill and chuck arrangement therefor | |
| CN211342813U (en) | Low-friction-resistance replaceable sleeve stabilizer | |
| CN213627494U (en) | Forced arrow-shaped check valve | |
| EP0581534B1 (en) | Cutting insert for an abrasive tool and method of mounting | |
| CN211777252U (en) | Novel anti-drop screw rod drilling tool | |
| CN212337147U (en) | Angle-adjustable transmission shaft assembly for screw drill | |
| CN201087694Y (en) | Safe and reliable long-life screw drill | |
| CN207633884U (en) | A kind of vertical bars formula lock core marble | |
| EP0255536A1 (en) | Drill tool | |
| US3039548A (en) | Detachable blade bit | |
| US4505343A (en) | Plural-part earth bit, and an improved bit head therefor | |
| CN213684042U (en) | Milling shoe for underground milling | |
| CN213711585U (en) | Novel rod end joint bearing | |
| CN219053033U (en) | Milling cutter structure with reuse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200721 |