CN113182903A - Internal centering pressing device - Google Patents
Internal centering pressing device Download PDFInfo
- Publication number
- CN113182903A CN113182903A CN202110531561.4A CN202110531561A CN113182903A CN 113182903 A CN113182903 A CN 113182903A CN 202110531561 A CN202110531561 A CN 202110531561A CN 113182903 A CN113182903 A CN 113182903A
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- CN
- China
- Prior art keywords
- worm
- positioning
- positioning barrel
- hole
- pressing plate
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- 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.)
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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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention provides an internal centering pressing device, which comprises: the worm (1), the worm wheel pressing plate (2), the positioning barrel (3), the spring (5), the bottom plate (7), the pin (8) and the positioning pin (9); a sliding groove is formed in the bottom plate (7), a threaded hole is formed in the center of the bottom of the sliding groove, and the worm (1) penetrates through the positioning barrel (3) and is in threaded connection with the threaded hole; the spring (5) is sleeved on the worm (1) and arranged between the positioning barrel (3) and the bottom plate (7); at least two worm wheel pressing plates (2) are rotationally connected in U-shaped grooves and are evenly distributed on the circumference of the top of the positioning barrel (3), one end of each worm wheel pressing plate (2) is of a worm wheel structure and is connected with a worm (1) to form worm transmission; the other end of the worm gear pressing plate (2) is of an arc-shaped pressing plate structure; the workpiece (10) is sleeved on the outer side of the positioning barrel (3), and the arc-shaped pressing plate structure of the worm gear pressing plate (2) is used for pressing the workpiece (10) when extending out of the U-shaped groove. The positioning and the pressing can be realized simultaneously.
Description
Technical Field
The invention belongs to the field of clamps, and relates to an internal centering pressing device.
Background
In the positioning of machining, when the outer surface of a cylindrical part with an inner cavity is machined, there may be a case that positioning and pressing are required in the cavity.
However, for a cylindrical part with a smaller inner cavity diameter, the outer surface can only be processed in a grading manner, and when the inner cavity of the cylindrical part is larger, a manner of adding a pressing plate in the inner cavity can be adopted for pressing, but the operation is inconvenient.
Disclosure of Invention
The invention provides an internal centering pressing device, which solves the problem that the existing clamping mode is not suitable or inconvenient to operate.
The invention provides an internal centering pressing device, which comprises: the worm gear positioning device comprises a worm 1, a worm gear pressing plate 2, a positioning barrel 3, a spring 5, a bottom plate 7, a pin 8 and a positioning pin 9; wherein the content of the first and second substances,
a sliding groove for the positioning barrel 3 to slide is formed in the bottom plate 7, a threaded hole is formed in the center of the bottom of the sliding groove, the worm 1 penetrates through the positioning barrel 3, the middle of the worm 1 is of a worm structure, and the size of the middle of the worm 1 is larger than that of a central hole of the positioning barrel 3; the bottom of the worm 1 is a screw rod which is connected in a threaded hole in a threaded manner;
the spring 5 is sleeved on the worm 1 and arranged between the positioning barrel 3 and the bottom plate 7;
at least two U-shaped grooves are uniformly distributed on the circumference of the top of the positioning barrel 3, the opening direction of each U-shaped groove faces the top of the positioning barrel 3, and positioning pin holes and pin holes are formed in two side walls of each U-shaped groove;
a pin 8 penetrating through a pin hole is rotatably connected with a worm gear pressing plate 2, one end of the worm gear pressing plate 2 is of a worm gear structure and is connected with a worm 1 to form worm transmission; the other end of the worm gear press plate 2 is of an arc-shaped press plate structure;
an arc-shaped groove is formed in the middle of the worm gear pressing plate 2, and a positioning pin 9 penetrating through a positioning pin hole slides in the arc-shaped groove, so that the worm gear pressing plate 2 is accommodated in the U-shaped groove or vertically extends out of the U-shaped groove;
the workpiece 10 is sleeved on the outer side of the positioning barrel 3, and the arc-shaped pressing plate structure of the worm pressing plate 2 is used for pressing the workpiece 10 when extending out of the U-shaped groove.
Optionally, the top of the worm 1 is of an outer hexagonal structure and is used for connecting a wrench.
Optionally, the internal centering and compressing device further comprises: a socket head cap screw 6;
the bottom of the sliding groove is also provided with a positioning hole which is a stepped hole, and the end with the smaller diameter of the stepped hole faces the positioning barrel 3;
the end surface of the positioning barrel 3 facing the bottom plate 7 is provided with a screw hole corresponding to the positioning hole;
the head of the inner hexagon screw 6 is clamped in the step hole and slides in the step hole, and the tail of the inner hexagon screw 6 is penetrated through the screw hole and is fixedly connected with the positioning barrel 3.
Optionally, a limiting groove of the spring 5 is arranged on the bottom end face of the positioning barrel 3.
Optionally, the internal centering and compressing device further comprises: a cover plate 4;
the cover plate 4 is fixed at the upper end of the top of the positioning barrel 3, and the worm 1 penetrates through a central through hole of the cover plate 4;
the size of the middle part of the worm 1 is larger than that of the central through hole.
Optionally, the difference between the height of the inner cavity of the positioning barrel 3 and the height of the middle part of the worm 1 is smaller than the total length of the worm structure on the worm 1.
Optionally, the cover plate 4 is welded and fixed on the upper end of the top of the positioning barrel 3.
Optionally, four U-shaped grooves are uniformly distributed on the circumference of the top of the positioning barrel 3.
The invention provides an internal centering pressing device, which comprises: the worm gear positioning device comprises a worm 1, a worm gear pressing plate 2, a positioning barrel 3, a spring 5, a bottom plate 7, a pin 8 and a positioning pin 9; a sliding groove for the positioning barrel 3 to slide is formed in the bottom plate 7, a threaded hole is formed in the center of the bottom of the sliding groove, the worm 1 penetrates through the positioning barrel 3, the middle of the worm 1 is of a worm structure, and the size of the middle of the worm 1 is larger than that of a central hole of the positioning barrel 3; the bottom of the worm 1 is a screw rod which is connected in a threaded hole in a threaded manner; the spring 5 is sleeved on the worm 1 and arranged between the positioning barrel 3 and the bottom plate 7; at least two U-shaped grooves are uniformly distributed on the circumference of the top of the positioning barrel 3, the opening direction of each U-shaped groove faces the top of the positioning barrel 3, and positioning pin holes and pin holes are formed in two side walls of each U-shaped groove; a pin 8 penetrating through a pin hole is rotatably connected with a worm gear pressing plate 2, one end of the worm gear pressing plate 2 is of a worm gear structure and is connected with a worm 1 to form worm transmission; the other end of the worm gear press plate 2 is of an arc-shaped press plate structure; an arc-shaped groove is formed in the middle of the worm gear pressing plate 2, and a positioning pin 9 penetrating through a positioning pin hole slides in the arc-shaped groove, so that the worm gear pressing plate 2 is accommodated in the U-shaped groove or vertically extends out of the U-shaped groove; the workpiece 10 is sleeved on the outer side of the positioning barrel 3, and the arc-shaped pressing plate structure of the worm pressing plate 2 is used for pressing the workpiece 10 when extending out of the U-shaped groove. The worm gear pressing plate 2 can be stored in the positioning cylinder 3, the outer diameter of the positioning cylinder 3 is consistent with the size of the central through hole of the workpiece, the requirement on the size of the inner cavity of the workpiece is avoided, the positioning compression can be realized simultaneously, the worm gear pressing plate is suitable for cylindrical parts with small cavities, and the operation is convenient.
Drawings
Fig. 1 is a first structural schematic view of an internal centering and compressing device provided by the invention;
fig. 2 is a second structural schematic view of the internal centering pressing device provided by the invention;
FIG. 3 is a schematic structural view of a worm according to the present invention;
FIG. 4 is a schematic structural view of a worm gear platen provided in the present invention;
FIG. 5 is a schematic structural view of a positioning barrel according to the present invention;
description of reference numerals:
1-worm, 2-worm wheel pressing plate, 3-positioning barrel, 4-cover plate, 5-spring, 6-inner hexagon screw, 7-worm bottom plate, 8-pin, 9-positioning pin and 10-workpiece.
Detailed Description
The internal centering and pressing device provided by the invention is explained in the following with reference to the attached drawings.
Referring to fig. 1 to 5, the present invention provides an internal centering pressing device, including: the worm comprises a worm 1, a worm gear pressing plate 2, a positioning barrel 3, a cover plate 4, a spring 5, an inner hexagon screw 6, a bottom plate 7, a pin 8 and a positioning pin 9;
as shown in fig. 3, the top (upper end) of the worm 1 is of a hexagonal structure and can be used for screwing the worm, the middle part is of a worm structure, and the bottom (lower end) is of a screw rod.
As shown in figure 4, the inner side of the worm wheel pressing plate 2 is of a worm wheel structure, the worm wheel pressing plate and the worm structure section of the worm 1 form worm transmission, the outer side of the worm wheel pressing plate is of an arc pressing plate structure, the middle of the worm wheel pressing plate is provided with an opening and an arc groove, and the number of the worm wheel pressing plates 2 is 4.
As shown in fig. 5, the outer side of the positioning barrel 3 is used for positioning a workpiece 10, 4U-shaped slots are uniformly distributed at the upper end, and 2 holes are formed in the slots and used for fixing a pin 8 and a positioning pin 9. The middle of the lower barrel bottom is provided with a through hole for the worm 1 to pass through. The barrel bottom at the lower end is also provided with 1 threaded hole which is in threaded connection with an inner hexagon screw 6.
The cover plate 4 is fixed at the upper end of the positioning barrel, and the middle of the cover plate is provided with an opening for the worm 1 to pass through.
The upper end in the middle of the bottom plate 7 is provided with a sliding groove which is in sliding fit with the outer side of the positioning barrel 3, the middle of the lower end is provided with a threaded hole which is matched with the threaded section of the worm 1, and a spring 5 plays a role in bouncing open and a hexagon socket head cap screw 6 plays a role in limiting the rotation and sliding distance between the bottom plate 7 and the positioning barrel 3.
Worm gear clamp plate 2 passes through the pin 8 to be connected in the U type inslot of location bucket 3 to can rotate around pin 8, the circular arc groove of worm gear clamp plate 2 cooperates with locating pin 9 simultaneously, restriction worm gear clamp plate 2's rotation range.
The difference between the height H of the inner cavity of the positioning barrel 3 and the height H of the middle limiting section of the worm 1 is smaller than the total length of the worm structure of the worm 1.
The workpiece 10 is positioned and placed on the bottom plate 7 through the positioning barrel 3, the worm 1 is screwed clockwise, the bottom of the middle section of the worm 1 is in contact with the bottom of the inner cavity of the positioning barrel 3, the worm 1 drives the positioning barrel 3 to move downwards at the same time, and the worm gear pressing plate 2 is driven to rotate by the rotation of the worm structure of the worm 1. When the worm gear pressing plate 2 rotates 90 degrees, the worm gear pressing plate 2 is limited by the locating pin 9. At this time, because the height H of the inner cavity of the positioning barrel 3 is greater than the height H of the middle limiting section of the worm 1, the worm 1 can continue to rotate, and the worm wheel pressing plate 2 drives the positioning barrel 3 to move downwards relative to the worm 1, so that the worm wheel pressing plate 2 compresses the workpiece 10, as shown in fig. 1.
Under the state of pressing a workpiece 10 as shown in fig. 1, a worm 1 is screwed anticlockwise, because a worm wheel pressing plate 2 is limited by the workpiece 10 and cannot rotate temporarily, the worm 1 moves upwards, the worm wheel pressing plate 2 moves upwards along the worm 1 and drives a positioning barrel 3 to move upwards relative to the worm 1, when the worm wheel pressing plate 2 rises to a certain height, the bottom of the middle section of the worm 1 is contacted with the bottom of an inner cavity of the positioning barrel 3 to prevent the positioning barrel 3 from moving upwards relative to the worm 1, and at the moment, the worm wheel pressing plate 2 starts to rotate upwards and is limited by a positioning pin 9 when rotating 90 degrees. The ascending movement of the positioning barrel 3 and the worm gear pressing plate 2 is finally limited by the socket head cap screw 6 as shown in fig. 2.
Claims (8)
1. An internal centering compression device, comprising: the worm (1), the worm wheel pressing plate (2), the positioning barrel (3), the spring (5), the bottom plate (7), the pin (8) and the positioning pin (9); wherein the content of the first and second substances,
the bottom plate (7) is provided with a sliding groove for the positioning barrel (3) to slide, the center of the bottom of the sliding groove is provided with a threaded hole, the worm (1) penetrates through the positioning barrel (3), the middle part of the worm (1) is of a worm structure, and the size of the middle part of the worm (1) is larger than that of a central hole of the positioning barrel (3); the bottom of the worm (1) is provided with a screw which is in threaded connection with the threaded hole;
the spring (5) is sleeved on the worm (1) and arranged between the positioning barrel (3) and the bottom plate (7);
at least two U-shaped grooves are uniformly distributed on the circumference of the top of the positioning barrel (3), the opening direction of each U-shaped groove faces the top of the positioning barrel (3), and positioning pin holes and pin holes are formed in two side walls of each U-shaped groove;
the pin (8) penetrating through the pin hole is rotatably connected with the worm gear pressing plate (2), one end of the worm gear pressing plate (2) is of a worm gear structure and is connected with the worm (1) to form worm transmission; the other end of the worm gear pressing plate (2) is of an arc-shaped pressing plate structure;
an arc-shaped groove is formed in the middle of the worm gear pressing plate (2), and a positioning pin (9) penetrating through the positioning pin hole slides in the arc-shaped groove, so that the worm gear pressing plate (2) is contained in the U-shaped groove or vertically extends out of the U-shaped groove;
the workpiece (10) is sleeved on the outer side of the positioning barrel (3), and the arc-shaped pressing plate structure of the worm gear pressing plate (2) is used for pressing the workpiece (10) when the U-shaped groove is extended out.
2. Device according to claim 1, characterized in that the top of the worm (1) is of external hexagonal configuration for connection to a wrench.
3. The apparatus of claim 1, further comprising: a socket head cap screw (6);
the bottom of the sliding groove is also provided with a positioning hole which is a stepped hole, and the end with the smaller diameter of the stepped hole faces the positioning barrel (3);
the end surface of the positioning barrel (3) facing the bottom plate (7) is provided with a screw hole corresponding to the positioning hole;
the head of the inner hexagon screw (6) is clamped in the step hole, the inner hexagon screw slides in the step hole, and the tail of the inner hexagon screw (6) penetrates through the screw hole and is fixedly connected with the positioning barrel (3).
4. The device according to claim 1, characterized in that the bottom end face of the positioning barrel (3) is provided with a limiting groove of the spring (5).
5. The apparatus of claim 1, further comprising: a cover plate (4);
the cover plate (4) is fixed at the upper end of the top of the positioning barrel (3), and the worm (1) penetrates through a central through hole of the cover plate (4);
the middle size of the worm (1) is larger than that of the central through hole.
6. The device according to claim 5, characterized in that the difference between the height of the inner cavity of the positioning barrel (3) and the height of the middle part of the worm screw (1) is smaller than the total length of the worm screw structure on the worm screw (1).
7. The device according to claim 6, characterized in that the cover plate (4) is welded and fixed on the top upper end of the positioning barrel (3).
8. The device according to claim 7, characterized in that the top of the positioning barrel (3) is provided with four U-shaped grooves on the circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110531561.4A CN113182903A (en) | 2021-05-14 | 2021-05-14 | Internal centering pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110531561.4A CN113182903A (en) | 2021-05-14 | 2021-05-14 | Internal centering pressing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113182903A true CN113182903A (en) | 2021-07-30 |
Family
ID=76981932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110531561.4A Pending CN113182903A (en) | 2021-05-14 | 2021-05-14 | Internal centering pressing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113182903A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2651706A1 (en) * | 1989-09-11 | 1991-03-15 | Carossino Freres | PRESSURE ELEMENT FOR CLAMPING WORKPIECES. |
| CN2146335Y (en) * | 1992-11-27 | 1993-11-17 | 武汉工学院 | Moving platen |
| CN201410622Y (en) * | 2009-06-24 | 2010-02-24 | 莱州市蔚仪试验器械制造有限公司 | Vertical clamping device |
| CN203098229U (en) * | 2012-12-28 | 2013-07-31 | 中国石油天然气股份有限公司 | Ejection-prevention and sealing anchoring device of oil-submerged pump driven by linear motor |
| JP2013173169A (en) * | 2012-02-27 | 2013-09-05 | Nissan Motor Co Ltd | Method for welding panel-shaped workpiece |
| CN105666172A (en) * | 2016-04-07 | 2016-06-15 | 合肥美桥汽车传动及底盘***有限公司 | Ring gear hard turning clamp device |
| CN108987170A (en) * | 2018-07-12 | 2018-12-11 | 东莞市联洲知识产权运营管理有限公司 | A kind of operating device of the flexible pin limit of tri-station isolating switch |
| CN110926695A (en) * | 2019-12-20 | 2020-03-27 | 杭州集智机电股份有限公司 | Automatic centering and pressing device for balancing machine with conical inner hole rotor |
| CN210938877U (en) * | 2019-09-09 | 2020-07-07 | 瓦房店太镨轴承制造有限公司 | Positioning tool for bearing production |
| CN112476282A (en) * | 2020-11-20 | 2021-03-12 | 昌河飞机工业（集团）有限责任公司 | Internal pressing device |
-
2021
- 2021-05-14 CN CN202110531561.4A patent/CN113182903A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2651706A1 (en) * | 1989-09-11 | 1991-03-15 | Carossino Freres | PRESSURE ELEMENT FOR CLAMPING WORKPIECES. |
| CN2146335Y (en) * | 1992-11-27 | 1993-11-17 | 武汉工学院 | Moving platen |
| CN201410622Y (en) * | 2009-06-24 | 2010-02-24 | 莱州市蔚仪试验器械制造有限公司 | Vertical clamping device |
| JP2013173169A (en) * | 2012-02-27 | 2013-09-05 | Nissan Motor Co Ltd | Method for welding panel-shaped workpiece |
| CN203098229U (en) * | 2012-12-28 | 2013-07-31 | 中国石油天然气股份有限公司 | Ejection-prevention and sealing anchoring device of oil-submerged pump driven by linear motor |
| CN105666172A (en) * | 2016-04-07 | 2016-06-15 | 合肥美桥汽车传动及底盘***有限公司 | Ring gear hard turning clamp device |
| CN108987170A (en) * | 2018-07-12 | 2018-12-11 | 东莞市联洲知识产权运营管理有限公司 | A kind of operating device of the flexible pin limit of tri-station isolating switch |
| CN210938877U (en) * | 2019-09-09 | 2020-07-07 | 瓦房店太镨轴承制造有限公司 | Positioning tool for bearing production |
| CN110926695A (en) * | 2019-12-20 | 2020-03-27 | 杭州集智机电股份有限公司 | Automatic centering and pressing device for balancing machine with conical inner hole rotor |
| CN112476282A (en) * | 2020-11-20 | 2021-03-12 | 昌河飞机工业（集团）有限责任公司 | Internal pressing 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210730 |
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| RJ01 | Rejection of invention patent application after publication |