CN112518362A - Gear type chuck with stable clamping - Google Patents
Gear type chuck with stable clamping Download PDFInfo
- Publication number
- CN112518362A CN112518362A CN201910887146.5A CN201910887146A CN112518362A CN 112518362 A CN112518362 A CN 112518362A CN 201910887146 A CN201910887146 A CN 201910887146A CN 112518362 A CN112518362 A CN 112518362A
- Authority
- CN
- China
- Prior art keywords
- clamping jaw
- gear
- hole
- outer peripheral
- peripheral edge
- 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.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
Abstract
The invention provides a gear type chuck with stable clamping, which comprises a first body, a second body, a clamping jaw fixing seat, a screw rod, a bevel gear and a driving gear. One end of the first body is provided with an internal thread and an internal ring hole which are coaxially arranged; the second body is provided with an external thread and an outer peripheral edge which are coaxially arranged, the external thread is in threaded connection with the internal thread, the outer peripheral edge is matched and attached with the inner annular hole, and the outer edge of the second body is provided with an installation hole; the clamping jaw fixing seat and the screw rod are arranged between the first body and the second body, and one end of the clamping jaw fixing seat is provided with a plurality of clamping jaw grooves for accommodating a plurality of clamping jaws; one end of the screw rod is used for the clamping jaw to be connected in a sliding way; the bevel gear is arranged in the second body and is screwed on the screw rod; the driving gear is rotatably arranged in the mounting hole and meshed with the bevel gear. Therefore, the concentricity of the chuck is improved, and the effect of stably clamping the cutter is realized.
Description
Technical Field
The present invention relates to a chuck, and more particularly, to a gear chuck with stable clamping.
Background
Please refer to taiwan patent No. M578626, which discloses a gear type chuck including a first body, a second body, and a jaw seat, a first bevel gear, a jaw driving member and a second bevel gear disposed between the first body and the second body. The first bevel gear is arranged on the clamping jaw driving piece in a threaded mode, and the second bevel gear is meshed with the first bevel gear so that the second bevel gear can be driven to rotate by a tool to drive the first bevel gear to rotate, and the clamping jaw driving piece moves axially relative to the second body to enable the clamping head to clamp a tool or loosen the tool.
However, the first body and the second body are only screwed by threads, and the combination of the threads does not achieve high-precision concentric fit, which affects the stability of the clamping tool, and the clamping jaw seat and the clamping jaw cannot be effectively attached to each other, so that the clamping jaw is suspended and the clamping stability is affected.
Disclosure of Invention
The primary objective of the present invention is to provide a gear chuck with stable clamping, wherein the first body and the second body are screwed together by screw threads, and the outer periphery of the first body is matched with the inner ring hole, so as to increase the concentricity of the first body and the second body, and the chuck can stably clamp a tool.
The technical scheme for solving the problems is realized as follows:
a gear type chuck with stable clamping comprises a first body, a second body, a clamping jaw fixing seat, a screw rod, a bevel gear and a driving gear. The first body is in a conical shell shape, and one end of the first body is provided with an internal thread and an internal annular hole which are coaxially arranged; the second body is provided with an external thread and an outer peripheral edge which are coaxially arranged, the external thread is in threaded connection with the internal thread, the outer peripheral edge is matched and attached with the inner ring hole, and the outer edge of the second body is provided with an installation hole; the clamping jaw fixing seat is arranged between the first body and the second body, and one end of the clamping jaw fixing seat is provided with a plurality of clamping jaw grooves along the axial direction so as to accommodate a plurality of clamping jaws; the screw is arranged between the first body and the second body, and one end of the screw is used for the clamping jaw to be connected in a sliding manner; the bevel gear is arranged in the second body and is screwed in the screw rod; and the driving gear is rotatably arranged in the mounting hole of the second body and is meshed with the bevel gear.
In another embodiment of the present invention, a damping device is disposed between the first body and the second body.
In another embodiment of the present invention, the damping device includes a plurality of damping balls, and the damping balls are disposed around the outer circumference and located at one side of the external thread.
In another embodiment of the present invention, the damping device further includes an O-ring disposed on the other side of the external thread.
In another embodiment of the present invention, one end of the screw is provided with a plurality of sliding grooves for sliding the end of the clamping jaw; the clamping jaw is provided with two side faces and a bevel edge part positioned between the two side faces, and a scrap discharging groove is arranged between the bevel edge part and each side face.
In another embodiment of the present invention, the inner annular hole has a first annular hole and a second annular hole disposed at two ends of the inner thread, the inner diameter of the first annular hole is smaller than the inner diameter of the second annular hole, the outer periphery has a first outer periphery and a second outer periphery disposed at two ends of the outer thread, the first outer periphery is adapted to the first annular hole, the second outer periphery is adapted to the second annular hole, and the outer diameter of the first outer periphery is smaller than the outer diameter of the second outer periphery.
In another embodiment of the present invention, the bevel gear has a first tooth portion facing the second body, and the driving gear has a second tooth portion engaged with the first tooth portion; the bevel gear is provided with a leaning part at the back side of the first tooth part, the inner side of the second body is annularly provided with an inner shoulder part, and the clamping jaw fixing seat is provided with a ring part relative to the clamping jaw groove and leans against the leaning part and the inner shoulder part.
In another embodiment of the present invention, the clamping jaw fixing seat has a pin hole for embedding a fixing pin, and the end edge of the second body has a positioning groove for the fixing pin to be inserted and positioned.
In another embodiment of the present invention, the second body has a first end and a second end, the first end has an external thread and an outer periphery, and a center line of the mounting hole is closer to the second end than a threaded connection portion of the external thread and the internal thread.
In another embodiment of the present invention, a limiting member is further included, which is combined with the mounting hole to prevent the driving gear from coming off.
Therefore, the first body and the second body are screwed together through the threads, and the outer periphery of the first body and the inner ring hole are matched with each other precisely, so that the concentricity of the first body and the second body is increased, and the chuck can stably clamp the cutter.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1: the appearance of the first embodiment of the invention is shown schematically;
FIG. 2: an exploded view of the first embodiment of the present invention;
FIG. 3: the clamping jaw structure of the first embodiment of the invention is schematic;
FIG. 4: the present invention is illustrated in cross-section taken along section line 4-4 of FIG. 1;
FIG. 5: FIG. 4 is an enlarged, fragmentary, schematic view of the present invention;
FIG. 6: the present invention is illustrated in cross-section taken along section line 6-6 of FIG. 1;
FIG. 7: a schematic view of a jaw in a spread state of the first embodiment of the invention;
FIG. 8: the appearance of the second embodiment of the invention is shown schematically;
FIG. 9: the present invention is illustrated in cross-section taken along section line 9-9 of fig. 8.
Description of the reference numerals
10 first body
100 gear type chuck
11 internal screw thread
12 inner ring hole
121 first ring hole
122 second annular hole
20 second body
201 first end
202 second end
21 external thread
22 outer periphery of the container
221 first outer peripheral edge
222 second peripheral edge
23 mounting hole
24 positioning groove
25 inner shoulder
30 clamping jaw fixing seat
31 taper part
32 jaw slot
33 clamping jaw
331 group setting part
332 side surface
333 beveled edge part
334 chip removal groove
34 pin hole
35 fixed pin
36 ring part
40 screw rod
41 threaded segment
42 chute
50 bevel gear
51 first tooth
52 abutting part
60 drive gear
61 second tooth part
62 tool hole
70 position limiter
80 damping device
81 damping ball
82 small hole
An 83O-ring.
Detailed Description
The technical solution in the embodiments of the present invention is clearly and completely described below with reference to the drawings in the embodiments of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 to 7, a gear type chuck 100 with stable clamping is disclosed as a first embodiment of the present invention, which includes a first body 10, a second body 20, a jaw fixing base 30, a screw 40, a bevel gear 50 and a driving gear 60.
A first body 10 having a conical shell shape. The first body 10 has an internal thread 11 and an internal annular hole 12 coaxially disposed at one end. The inner ring hole 12 has a first ring hole 121 and a second ring hole 122 disposed at two ends of the internal thread 11, the inner diameter of the first ring hole 121 is smaller than the inner diameter of the second ring hole 122, and the inner ring hole 12 can be manufactured by precision machining.
The second body 20 has a first end 201 and a second end 202, the second end 202 is connected to the machine tool, the first end 201 has an external thread 21 and an outer peripheral edge 22 coaxially disposed, the external thread 21 is screwed with the internal thread 11, so that the first body 10 and the second body 20 are connected to each other. The outer periphery 22 has a first outer periphery 221 and a second outer periphery 222 disposed at two ends of the external thread 21, and the outer diameter of the first outer periphery 221 is smaller than the outer diameter of the second outer periphery 222, and the first outer periphery 221 and the second outer periphery 222 are precisely machined, so that when the first body 10 is screwed with the second body 20, the first outer periphery 221 is matched with the first annular hole 121, and the second outer periphery 222 is matched with the second annular hole 122, which can improve the concentricity of the first body 10 and the second body 20 compared with the assembly method of a single thread, as shown in the partially enlarged view of fig. 5. In addition, the outer edge of the second body 20 has a mounting hole 23 communicating with the inside, and the center line of the mounting hole 23 is closer to the second end 202 than the threaded portion of the external thread 21 and the internal thread 11. In addition, the second body 20 has a positioning groove 24 at the first end 201, and an inner shoulder 25 is formed around the inner side of the second body 20.
The clamping jaw fixing base 30 is disposed between the first body 10 and the second body 20, one end of the clamping jaw fixing base 30 is provided with a cone 31, the cone 31 is hollow, and a plurality of clamping jaw grooves 32 are axially formed in the cone 31 for accommodating a plurality of clamping jaws 33. As shown in fig. 3, each clamping jaw 33 has a set of portion 331, two side surfaces 332 and a bevel portion 333 located between the two side surfaces 332, and a chip-removing groove 334 is provided between the bevel portion 333 and each side surface 332, so that the chips of the clamping jaw 33 can be removed from the chip-removing groove 334 during the grinding process, thereby improving the precision of the clamping jaw 33, and thus the clamping jaw 33 can be effectively attached to the inner edge of the first body 10, as shown in fig. 4, the clamping jaw 33 is prevented from being suspended and affecting the concentricity due to the clearance generated with the first body 10.
The jaw fixing base 30 further has a pin hole 34 for inserting a fixing pin 35. When the jaw fixing base 30 is installed between the first body 10 and the second body 20, the fixing pin 35 can be inserted and positioned in the positioning groove 24. And the jaw retaining bracket 30 is provided with a collar 36 opposite the jaw slot 32.
The screw 40 is disposed between the first body 10 and the second body 20, one end of the screw 40 has a threaded section 41, and the other end has a plurality of sliding slots 42, so that the assembling portion 331 for the clamping jaw 33 is slidably disposed in the sliding slots 42.
And a bevel gear 50 disposed in the second body 20 and screwed to the threaded section 41 of the screw 40. The bevel gear 50 has a first tooth portion 51 facing the second body 20, and an abutting portion 52 is disposed at a back side of the first tooth portion 51. The collar 36 of the jaw mount 30 can bear against the abutment 52 and the internal shoulder 25, as shown in figure 4.
And a driving gear 60 rotatably disposed in the mounting hole 23 of the second body 20 and engaged with the bevel gear 50. The driving gear 60 has a second tooth 61 which meshes with the first tooth 51. And, the driving gear 60 is provided with a polygonal tool hole 62 different from the second tooth portion 61, so that a wrench tool can be connected to operate the driving gear 60 to rotate, so that the driving gear 60 drives the bevel gear 50 to rotate, the screw 40 generates axial displacement relative to the first body 10 and the second body 20, and the clamping jaw 33 is further closed or loosened.
The present invention includes a limiting member 70 combined with the mounting hole 23 for preventing the driving gear 60 from coming off.
Furthermore, the damping device 80 is disposed between the first body 10 and the second body 20, and the damping device 80 can reduce the vibration of the tool when the chuck performs a work, prolong the service life of the tool, and ensure the precision of each component. Wherein, the damping device 80 comprises a plurality of damping balls 81, and the damping balls 81 are arranged around the outer circumference 22 of the second body 20 and are located at one side of the external thread 21. In the embodiment of the present invention, the first outer periphery 221 of the second body 20 is provided with a plurality of small holes 82 for the damping balls 81 to be embedded therein.
In addition, the damping device 80 further includes an O-ring 83 disposed on the other side of the external thread 21, i.e. adjacent to the second outer periphery 222, and the damping effect is achieved by the damping ball 81 and the O-ring 83.
Fig. 7 is a schematic view showing a jaw of the present invention in an unfolded state. When the driving gear 60 is driven to rotate by the wrench tool, the driving gear 60 drives the bevel gear 50 to rotate, and at this time, the screw 40 can generate axial displacement relative to the first body 10 and the second body 20, so as to loosen (spread) the clamping jaws 33, so as to install or replace the tool, which is quite convenient in operation.
As shown in fig. 8 and 9, a second embodiment of the present invention is different from the first embodiment in that the second body 20 has a longer size and a tapered shape for use in different machine tool spindles.
Therefore, the invention has the following advantages:
1. the first body 10 and the second body 20 are screwed together, and the outer periphery 22 and the inner annular hole 12 are matched with each other, so as to increase the concentricity of the first body 10 and the second body 20, and enable the chuck to stably clamp the tool.
2. The driving gear 60 and the bevel gear 50 are provided at the second body 20, so that the operation torque can be increased, thereby facilitating the operation.
3. The clamping jaw 33 has a chip removal groove 334 for improving the machining precision of the clamping jaw 33, so that the clamping jaw can be effectively attached to the inner edge of the first body 10, and the concentricity can be improved.
4. The vibration damping device 80 reduces the vibration caused by the cutter when the chuck executes operation, prolongs the service life of the cutter and ensures the precision of each component.
The foregoing description is only of the preferred embodiments of the present invention, and it should be understood that the described embodiments are only a few, and not all, of the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (10)
1. A gear chuck with stable clamping is characterized by comprising:
the first body is in a conical shell shape, and one end of the first body is provided with an internal thread and an internal annular hole which are coaxially arranged;
the second body is provided with an external thread and an outer peripheral edge which are coaxially arranged, the external thread is in threaded connection with the internal thread, the outer peripheral edge is matched and attached with the inner ring hole, and the outer edge of the second body is provided with an installation hole;
the clamping jaw fixing seat is arranged between the first body and the second body, and one end of the clamping jaw fixing seat is provided with a plurality of clamping jaw grooves along the axial direction so as to accommodate a plurality of clamping jaws;
the screw is arranged between the first body and the second body, and one end of the screw is used for the clamping jaws to be connected in a sliding manner;
a bevel gear arranged in the second body and screwed on the screw rod; and
and the driving gear is rotatably arranged in the mounting hole of the second body and is meshed with the bevel gear.
2. The gear chuck according to claim 1, wherein a damping device is disposed between the first body and the second body.
3. The gear chuck according to claim 2, wherein the damping device comprises a plurality of damping balls, the damping balls are disposed around the outer periphery and located at one side of the external thread.
4. The gear chuck according to claim 3, wherein the damping means further comprises an O-ring disposed on the other side of the external thread.
5. The gear chuck with stable clamping function of claim 1, wherein one end of the screw is provided with a plurality of sliding grooves for the sliding arrangement of the clamping jaw ends; the clamping jaw is provided with two side faces and an inclined edge part positioned between the two side faces, and a chip removing groove is arranged between the inclined edge part and each side face.
6. The gear chuck according to claim 1, wherein the inner annular hole has a first annular hole and a second annular hole disposed at two ends of the internal thread, the first annular hole has an inner diameter smaller than that of the second annular hole, the outer peripheral edge has a first outer peripheral edge and a second outer peripheral edge disposed at two ends of the external thread, the first outer peripheral edge is adapted to the first annular hole, the second outer peripheral edge is adapted to the second annular hole, and the outer diameter of the first outer peripheral edge is smaller than that of the second outer peripheral edge.
7. The gear chuck according to claim 6, wherein the bevel gear has a first tooth portion and faces the second body, and the driving gear has a second tooth portion engaged with the first tooth portion; the bevel gear is provided with a leaning part at the back side of the first tooth part, the inner side of the second body is annularly provided with an inner shoulder part, and the clamping jaw fixing seat is provided with a ring part relative to the clamping jaw grooves and leans against the leaning part and the inner shoulder part.
8. The chuck as claimed in claim 7, wherein the chuck body has a pin hole for receiving a fixing pin, and the second body has a positioning groove at an end edge thereof for receiving and positioning the fixing pin.
9. The gear chuck as claimed in claim 8, wherein the second body has a first end and a second end, the first end has the external thread and the outer periphery, and the center line of the mounting hole is closer to the second end than the threaded connection between the external thread and the internal thread.
10. The gear chuck according to claim 9, further comprising a retainer engaged with the mounting hole for preventing the driving gear from coming off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910887146.5A CN112518362A (en) | 2019-09-19 | 2019-09-19 | Gear type chuck with stable clamping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910887146.5A CN112518362A (en) | 2019-09-19 | 2019-09-19 | Gear type chuck with stable clamping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112518362A true CN112518362A (en) | 2021-03-19 |
Family
ID=74974179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910887146.5A Pending CN112518362A (en) | 2019-09-19 | 2019-09-19 | Gear type chuck with stable clamping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112518362A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227592A (en) * | 2021-11-23 | 2022-03-25 | 广东技术师范大学 | Self-locking type multifunctional screwdriver head clamping device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2237511Y (en) * | 1995-10-10 | 1996-10-16 | 铨宝工业股份有限公司 | Tool grip holder |
| CN2527786Y (en) * | 2002-01-18 | 2002-12-25 | 廖谊淙 | Combined gear |
| KR20030074700A (en) * | 2001-12-14 | 2003-09-19 | 미쓰비시덴키 가부시키가이샤 | Thrust converter |
| TWM367045U (en) * | 2009-05-07 | 2009-10-21 | Chum Power Machinery Corp | Chuck structure |
| CN104625133A (en) * | 2013-11-13 | 2015-05-20 | 成都普瑞斯数控机床有限公司 | Numerical control machine tool with abrasion resisting chuck |
| TWM578626U (en) * | 2019-02-20 | 2019-06-01 | 銓寶工業股份有限公司 | Gear type chuck |
-
2019
- 2019-09-19 CN CN201910887146.5A patent/CN112518362A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2237511Y (en) * | 1995-10-10 | 1996-10-16 | 铨宝工业股份有限公司 | Tool grip holder |
| KR20030074700A (en) * | 2001-12-14 | 2003-09-19 | 미쓰비시덴키 가부시키가이샤 | Thrust converter |
| CN2527786Y (en) * | 2002-01-18 | 2002-12-25 | 廖谊淙 | Combined gear |
| TWM367045U (en) * | 2009-05-07 | 2009-10-21 | Chum Power Machinery Corp | Chuck structure |
| CN104625133A (en) * | 2013-11-13 | 2015-05-20 | 成都普瑞斯数控机床有限公司 | Numerical control machine tool with abrasion resisting chuck |
| TWM578626U (en) * | 2019-02-20 | 2019-06-01 | 銓寶工業股份有限公司 | Gear type chuck |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227592A (en) * | 2021-11-23 | 2022-03-25 | 广东技术师范大学 | Self-locking type multifunctional screwdriver head clamping device |
| CN114227592B (en) * | 2021-11-23 | 2023-09-08 | 广东技术师范大学 | Self-locking type multifunctional batch head clamping device |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210319 |
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| WD01 | Invention patent application deemed withdrawn after publication |