CN212329740U - Drill bit mounting mechanism for machining - Google Patents
Drill bit mounting mechanism for machining Download PDFInfo
- Publication number
- CN212329740U CN212329740U CN202020504105.1U CN202020504105U CN212329740U CN 212329740 U CN212329740 U CN 212329740U CN 202020504105 U CN202020504105 U CN 202020504105U CN 212329740 U CN212329740 U CN 212329740U
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- Prior art keywords
- hole
- conical
- lock lever
- round hole
- check lock
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- 238000003754 machining Methods 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 title claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000005553 drilling Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of machining, especially, be a drill bit installation mechanism for machining, including chuck main part and check lock lever, the top of chuck main part is the cylinder, the bottom is the outer frustum body that expands, and the hole of chuck main part has the clamping round hole by bottom to top intercommunication in proper order, toper centering hole and direction round hole, and the outside of clamping round hole is outer awl atress face, and the equipartition is equipped with a plurality of atress shape variable grooves on the outer awl atress face, and the middle part activity gomphosis of direction round hole has the position ring piece, and the bottom of check lock lever is equipped with forward locking bolt. The utility model discloses a check lock lever connects the upwards pulling conical drill handle of forward screw hole through forward locking bolt closure on the one hand, makes conical drill handle embedding toper centering hole realize the gomphosis and connects, and the check lock lever compresses the outer awl stress surface of extrusion downwards through reverse locking bolt and reverse nut and produces deformation simultaneously, presss from both sides the excircle of conical drill handle tightly, presss from both sides the drill bit from two positions and tightly.
Description
Technical Field
The utility model relates to a machining technical field specifically is a drill bit installation mechanism for machining.
Background
The drilling machine clamp is a fixing tool for processing a workpiece on a drilling machine, the positioning of the workpiece in the clamp replaces a supporting point with a positioning element, errors exist in the positioning element and the positioning reference of the workpiece during manufacturing, the positioning element and the positioning reference of the workpiece can influence the positioning accuracy of the workpiece, the drilling machine clamp is a clamp which is applied more in machining, the position accuracy of a processing hole is influenced by a plurality of factors, a tool setting error is one of the influencing factors, in order to meet the requirement of the position accuracy of the processed part hole, a tool setting error is calculated by adopting an extreme method for a long time, and when the tool setting error is calculated by adopting the extreme method, an assumed limit state rarely appears in the part processing, so that the manufacturing accuracy and the cost of the clamp are improved; in addition, the method does not consider the influence of assembly, and has larger access with the actual situation, the common twist drill has large axial size and poor structural rigidity, and the chisel edge formed by the drill core structure damages the centering, so that the drill tip is unstable in movement and larger hole position error is often caused in the cobalt removing process; in single-piece and small-batch production, the hole site precision is often controlled by continuous manual correction of an operator in the process of pulling out the drill, and in large-batch high-efficiency production, the improvement of a blade structure and the strict guiding solution of a clamp to a cutter are required.
The current drill bit mounting mechanisms for machining suffer from the following problems:
1. the existing drill bit mounting mechanism for machining can only clamp a drill bit in a single direction, so that the clamping force is small.
2. Current drill bit mounting mechanisms for machining do not provide for clamping or unclamping the drill bit from the side.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a drill bit installation mechanism for machining has solved present drill bit installation mechanism for machining can only the folk prescription to lead to the less problem that can not press from both sides tightly or loosen the drill bit from the side direction to drill bit process centre gripping.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a drill bit installation mechanism for machining comprises a chuck main body and a locking rod, wherein the top end of the chuck main body is a cylinder, the bottom end of the chuck main body is an outer expansion frustum body, an inner hole of the chuck main body is sequentially communicated with a clamping round hole, a conical centering hole and a guiding round hole from the bottom end to the top end, the outer side of the clamping round hole is an outer cone stress surface, a plurality of stress deformation grooves are equidistantly arranged on the outer cone stress surface, a positioning ring sheet is embedded in the middle of the guiding round hole, a forward locking bolt is arranged at the bottom end of the locking rod, a reverse locking bolt is arranged at the top end of the locking rod, a locking ring groove is arranged in the middle of the locking rod, the positioning ring sheet is embedded in the locking ring groove to position the locking rod, four guide rods are vertically fixed on the lateral side of the top end of the chuck main body, the middle parts of the four guide rods are movably inserted and connected with locking plates, the centers of the locking plates are fixedly connected with reverse nuts, the reverse locking bolts are screwed and connected with the reverse nuts, the sides of the locking plates are fixedly connected with conical opening sleeves, inner holes of the conical opening sleeves are provided with conical force application surfaces, the conical force application surfaces extrude the outer conical force application surfaces, conical drill handles are clamped by clamping round holes, the top ends of the conical drill handles are embedded into the conical centering holes, the centers of the conical drill handles are provided with forward threaded holes, and the forward locking bolts are screwed and connected with the forward threaded holes.
As a preferred technical scheme of the utility model, four the top support of guide bar is fixed with the main shaft connector, the avris of main shaft connector has concatenated the worm axle.
As an optimized technical scheme of the utility model, the top of check lock lever concatenates and is fixed with the worm wheel dish, the worm shaft meshing the worm wheel dish.
As a preferred technical scheme of the utility model, the avris spiral shell of direction round hole is closed and is connected with adjusting screw, adjusting screw's front end is contradicted the outside of position ring piece.
As an optimized technical scheme of the utility model, the telescopic avris of awl mouth is equipped with the flute profile hole, and adjusting screw runs through the flute profile hole.
(III) advantageous effects
Compared with the prior art, the utility model provides a drill bit installation mechanism for machining possesses following beneficial effect:
1. this a drill bit installation mechanism for machining, the check lock lever connects forward screw hole upwards and pulls the conical point drill handle through forward locking bolt closure on the one hand, makes the conical point drill handle embedding toper centering hole realize the gomphosis and connects, and the check lock lever compresses the bevel connection sleeve through reverse locking bolt and reverse nut simultaneously and moves extrusion outer awl stress surface downwards and produces deformation, presss from both sides the excircle of conical point drill handle tightly, presss from both sides the drill bit from two positions and presss from both sides tightly.
2. This a drill bit installation mechanism for machining, the top of check lock rod concatenates and is fixed with the worm wheel dish, and the worm axle meshes the worm wheel dish, rotates the worm axle, then worm axle meshes the worm wheel dish and rotates, and then drives the top of check lock rod to the awl head drill holder taut and press from both sides tightly to the excircle of awl head drill holder.
Drawings
FIG. 1 is an exploded view of the subjective structure of the present invention;
fig. 2 is the side-cut structure schematic diagram of the utility model.
In the figure: 1. a chuck body; 2. clamping the circular hole; 3. a conical centering hole; 4. a guide circular hole; 5. an outer cone stress surface; 6. a stress deformation groove; 7. positioning the ring sheet; 8. a locking lever; 9. a positive locking bolt; 10. Locking the bolt reversely; 11. a locking ring groove; 12. a guide bar; 13. a locking plate; 14. a reverse nut; 15. a cone sleeve; 16. a conical force application surface; 17. a bit shank; 18. a positive threaded hole; 19. a main shaft connector; 20. a worm shaft; 21. a worm gear disc; 22. adjusting the screw; 23. a slot-shaped hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-2, the present invention provides the following technical solutions: a drill bit mounting mechanism for machining comprises a chuck main body 1 and a locking rod 8, wherein the top end of the chuck main body 1 is a cylinder, the bottom end of the chuck main body is an outward-expanding frustum body, an inner hole of the chuck main body 1 is sequentially communicated with a clamping round hole 2, a conical centering hole 3 and a guiding round hole 4 from the bottom end to the top end, the outer side of the clamping round hole 2 is an outer cone stress surface 5, a plurality of stress deformation grooves 6 are formed in the outer cone stress surface 5 in an equal division manner, a positioning ring sheet 7 is movably embedded in the middle of the inner hole of the guiding round hole 4, a forward locking bolt 9 is arranged at the bottom end of the locking rod 8, a reverse locking bolt 10 is arranged at the top end of the locking rod 8, a locking ring groove 11 is formed in the middle of the locking rod 8, the guiding round hole 4 is rotatably embedded in the middle of the locking rod 8, the positioning ring sheet 7 is embedded in the locking ring groove 11 to position the locking, the middle parts of the four guide rods 12 are movably connected with a locking plate 13 in a penetrating mode, the center of the locking plate 13 is fixedly connected with a reverse nut 14, a reverse locking bolt 10 is in threaded connection with the reverse nut 14, the side of the locking plate 13 is fixedly connected with a cone sleeve 15, an inner hole of the cone sleeve 15 is provided with a conical force application surface 16, the conical force application surface 16 extrudes an outer cone stress surface 5, a conical drill handle 17 is clamped in a clamping circular hole 2, the top end of the conical drill handle 17 is embedded into a conical centering hole 3, the center of the conical drill handle 17 is provided with a forward threaded hole 18, and a forward locking bolt 9 is in threaded connection with the forward threaded hole 18.
In the embodiment, when the drill bit is clamped, the locking rod 8 is rotated in the forward direction, on one hand, the locking rod 8 is connected with the forward threaded hole 18 in a locking manner through the forward locking bolt 9 in a locking manner to pull the conical drill handle 17 upwards, so that the conical drill handle 17 is embedded into the conical centering hole 3 to realize embedded connection, and the conical drill handle 17 and the chuck body 1 are concentrically connected into a whole by using the friction force generated by the taper, meanwhile, the locking rod 8 presses the cone opening sleeve 15 to move downwards through the reverse locking bolt 10 and the reverse nut 14, the cone opening sleeve 15 utilizes the cone force application surface 16 to extrude the outer cone force application surface 5, the outer cone force application surface 5 and the clamping round hole 2 are deformed, the excircle of the cone head drill handle 17 is clamped, when the drill bit is loosened, the locking rod 8 is rotated reversely, the cone opening sleeve 15 moves upwards, the conical force application surface 16 loosens the outer cone force bearing surface 5, loosens the outer circular surface of the cone bit drill handle 17, meanwhile, when the forward locking bolt 9 rotates reversely, the conical drill handle 17 is propped out of the conical centering hole 3.
Specifically, a main shaft connector 19 is fixedly supported at the top ends of the four guide rods 12, and a worm shaft 20 is connected in series to the side of the main shaft connector 19.
In this embodiment, the spindle connector 19 is used to connect a spindle of a drilling machine or a milling machine, and the spindle connector 19 drives the chuck body 1 and the bit shank 17 clamped and connected thereto to rotate through the four guide rods 12.
Specifically, a worm wheel disc 21 is fixed to the top end of the lock lever 8 in series, and the worm shaft 20 engages with the worm wheel disc 21.
In this embodiment, when the worm shaft 20 is rotated, the worm shaft 20 engages with the worm wheel disc 21 to rotate, and further drives the locking rod 8 to rotate, so as to tighten the top end of the bit shank 17 and clamp the outer circumference of the bit shank 17.
Specifically, the side of the round guide hole 4 is screwed with an adjusting screw 22, and the front end of the adjusting screw 22 abuts against the outer side of the positioning ring piece 7.
In this embodiment, the front end of the adjusting screw 22 abuts against the outer side of the positioning ring piece 7, so as to tightly press the positioning ring piece 7 against the locking ring groove 11, and position and engage the locking rod 8 with the center of the guiding round hole 4.
Specifically, a groove-shaped hole 23 is formed in the side of the tapered sleeve 15, and the adjustment screw 22 passes through the groove-shaped hole 23.
In this embodiment, the adjusting screw 22 passes through the slot-shaped hole 23, so that the adjusting screw 22 does not obstruct the normal lifting of the tapered sleeve 15 during the lifting process.
The worm shaft 20 and the worm wheel disc 21 in the present embodiment are known technologies that have been disclosed to be widely used in industrial production and daily life.
The utility model discloses a theory of operation and use flow: when the drill bit is clamped, the locking rod 8 is rotated in the forward direction, on one hand, the locking rod 8 is connected with the forward threaded hole 18 in a locking way through the forward locking bolt 9 in a locking way and pulls the conical drill handle 17 upwards, so that the conical drill handle 17 is embedded into the conical centering hole 3 to realize embedded connection, and the conical drill handle 17 and the chuck body 1 are concentrically connected into a whole by using the friction force generated by the taper, meanwhile, the locking rod 8 presses the cone opening sleeve 15 to move downwards through the reverse locking bolt 10 and the reverse nut 14, the cone opening sleeve 15 utilizes the cone force application surface 16 to extrude the outer cone force application surface 5, the outer cone force application surface 5 and the clamping round hole 2 are deformed, the excircle of the cone head drill handle 17 is clamped, when the drill bit is loosened, the locking rod 8 is rotated reversely, the cone opening sleeve 15 moves upwards, the conical force application surface 16 loosens the outer cone force bearing surface 5, loosens the outer circular surface of the cone bit drill handle 17, meanwhile, when the forward locking bolt 9 rotates reversely, the conical drill handle 17 is propped out of the conical centering hole 3.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A drill bit installation mechanism for machining, includes chuck main part (1) and check lock lever (8), its characterized in that: the top of chuck main part (1) is the cylinder, the bottom is outer expansion frustum body, the hole of chuck main part (1) has clamping round hole (2), toper centering hole (3) and direction round hole (4) by bottom to top intercommunication in proper order, the outside of clamping round hole (2) is outer awl atress face (5), outer awl atress face (5) equipartition is equipped with a plurality of atress shape change grooves (6), the middle part activity gomphosis of direction round hole (4) hole has positioning ring piece (7), the bottom of check lock lever (8) is equipped with forward locking bolt (9), the top of check lock lever (8) is equipped with reverse locking bolt (10), the middle part of check lock lever (8) is equipped with locking annular (11), direction round hole (4) rotate gomphosis the middle part of check lock lever (8), positioning ring piece (7) embedding check lock lever (8) are fixed a position gomphosis in locking annular (11), four guide rods (12) are vertically fixed on the side of the top end of the chuck main body (1), locking plates (13) are movably inserted and connected in the middles of the four guide rods (12), the center of the locking plate (13) is fixedly connected with a reverse nut (14), the reverse locking bolt (10) is screwed with the reverse nut (14), the edge side of the locking plate (13) is fixedly connected with a taper sleeve (15), an inner hole of the taper sleeve (15) is provided with a taper force application surface (16), the conical force application surface (16) extrudes the outer conical force application surface (5), the clamping round hole (2) is clamped with a conical drill handle (17), the top end of the conical drill handle (17) is embedded into the conical centering hole (3), the center of the conical head drill handle (17) is provided with a forward threaded hole (18), and the forward locking bolt (9) is in threaded connection with the forward threaded hole (18).
2. A bit mounting mechanism for machining according to claim 1, wherein: four the top support of guide bar (12) is fixed with main shaft connector (19), worm axle (20) have concatenated to the avris of main shaft connector (19).
3. A bit mounting mechanism for machining according to claim 1, wherein: the top end of the locking rod (8) is fixedly connected with a worm wheel disc (21) in series, and the worm shaft (20) is meshed with the worm wheel disc (21).
4. A bit mounting mechanism for machining according to claim 1, wherein: the avris of direction round hole (4) is screwed and is connected with adjusting screw (22), the front end of adjusting screw (22) is contradicted the outside of position ring piece (7).
5. A bit mounting mechanism for machining according to claim 1, wherein: the avris of awl mouth sleeve (15) is equipped with slot type hole (23), and adjusting screw (22) run through slot type hole (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020504105.1U CN212329740U (en) | 2020-04-08 | 2020-04-08 | Drill bit mounting mechanism for machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020504105.1U CN212329740U (en) | 2020-04-08 | 2020-04-08 | Drill bit mounting mechanism for machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212329740U true CN212329740U (en) | 2021-01-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020504105.1U Expired - Fee Related CN212329740U (en) | 2020-04-08 | 2020-04-08 | Drill bit mounting mechanism for machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212329740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161196A (en) * | 2021-12-10 | 2022-03-11 | 河南航天液压气动技术有限公司 | Novel quick-change tool structure for numerically controlled lathe |
-
2020
- 2020-04-08 CN CN202020504105.1U patent/CN212329740U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161196A (en) * | 2021-12-10 | 2022-03-11 | 河南航天液压气动技术有限公司 | Novel quick-change tool structure for numerically controlled lathe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210112 |