CN110064774B - Rotary disc device - Google Patents
Rotary disc device Download PDFInfo
- Publication number
- CN110064774B CN110064774B CN201910358329.8A CN201910358329A CN110064774B CN 110064774 B CN110064774 B CN 110064774B CN 201910358329 A CN201910358329 A CN 201910358329A CN 110064774 B CN110064774 B CN 110064774B
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- turntable
- clamping element
- fastening bolt
- clamping
- carousel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
- B23B39/20—Setting work or tool carrier along a circular index line; Turret head drilling machines
Abstract
The invention discloses a turntable device, which comprises an installation platform arranged on a casing drilling machine tool, a turntable arranged on the installation platform and used for mounting and positioning a casing, and a turntable limiting device used for limiting and locking the turntable so as to drill the casing on the turntable, wherein the turntable limiting device comprises turntable limiting mechanisms arranged on the installation platform, the turntable limiting mechanisms are arranged on the periphery of the turntable in a pairwise opposite and grouped manner, the turntable limiting mechanisms comprise a braking frame fixed on the installation platform, fastening bolts penetrating through the braking frame along the radial direction of the turntable, and clamping elements arranged on the fastening bolts and used for abutting against the peripheral wall surface of the turntable, threaded through holes for penetrating the fastening bolts are arranged on the braking frame along the radial direction of the turntable, the fastening bolts rotate towards the turntable so as to drive the clamping elements to move towards the turntable, and further enable the clamping elements to abut against the peripheral wall surface of the turntable, the clamping elements of the turntable limiting mechanism which are arranged oppositely exert force to clamp the turntable.
Description
Technical Field
The invention relates to the technical field of multi-cavity casing drilling, in particular to a rotary table device.
Background
In the case, because the case is provided with a plurality of processing surfaces along the circumferential direction, and through holes and/or blind holes with different sizes are processed on different processing surfaces, the case is arranged on a turntable by installing a turntable device on a processing machine tool, the different processing surfaces of the case are rotated to a processing area of the processing machine tool by rotating the turntable, and the case is processed after the position of the turntable is fixed by a turntable limiting device, so that the processing of all the processing surfaces of the case is finished. In the existing rotary table device, a plurality of bolt holes are arranged along the circumferential direction on the circumferential wall surface of a rotary table, paired bolts are inserted into the corresponding bolt holes to fix the rotary table, but gaps exist between the bolts and the bolt holes, so that the rotary table rotates in the processing process, further, the processing position of the processing surface on a machine box deviates, the processing precision is low, for example, the radial size of the hole processed in the drilling processing and the cylindricity of the hole do not accord with the processing requirements, and because the rotating angle of the rotary table is related to the arrangement mode of the bolt holes on the circumferential wall surface of the rotary table, the bolts can not limit the rotary table at any angle of 360 degrees, because the arrangement angles of a plurality of processing surfaces of different machine boxes are different, different angles are required to be rotated for processing, different rotary tables are required to be used for processing different machine boxes, and a plurality of machine boxes are required to process a plurality of through holes and/or blind holes at different processing, the layout angles of the plurality of processing positions on different processing surfaces are different, different processing surfaces of the processing case often need to install different turntables on the mounting platform, the manufacturing cost of the turntables is improved, the turntables need to be repeatedly disassembled, and the processing efficiency is reduced.
Disclosure of Invention
The invention provides a rotary table device, which aims to solve the technical problem that the machining precision of a casing is low due to the fact that the machining position of the casing deviates when the casing is machined on the conventional rotary table device.
According to one aspect of the invention, a turntable device is provided, which comprises a mounting platform mounted on a casing drilling machine tool, a turntable mounted on the mounting platform and used for mounting and positioning a casing, and a turntable limiting device used for limiting and locking the turntable to drill the casing on the turntable, wherein the turntable limiting device comprises turntable limiting mechanisms mounted on the mounting platform, the turntable limiting mechanisms are arranged on the periphery of the turntable in a pairwise opposite grouping manner, the turntable limiting mechanisms comprise a braking frame fixed on the mounting platform, fastening bolts penetrating the braking frame along the radial direction of the turntable and clamping elements mounted on the fastening bolts and used for abutting against the peripheral wall surface of the turntable, threaded through holes for penetrating the fastening bolts are arranged on the braking frame along the radial direction of the turntable, the fastening bolts rotate towards the turntable so as to drive the clamping elements to move towards the turntable and further enable the clamping elements to abut against the peripheral wall surface of the turntable, the clamping elements of the turntable limiting mechanism which are arranged oppositely exert force to clamp the turntable.
Further, the clamping surface of the clamping element for abutting against the peripheral wall surface of the rotating disc adopts an arc surface which is matched with the peripheral wall surface of the rotating disc.
Further, the arc of the clamping surface of the clamping element is 15-30 degrees.
Furthermore, the clamping element is provided with a blind hole for sleeving the clamping element on the fastening bolt, the blind hole is composed of an inner hole and an outer hole which are communicated with each other, the outer hole is in threaded matching connection with the fastening bolt, and the inner hole is a smooth hole with a radial size larger than that of the fastening bolt.
Furthermore, a guide block is arranged below the clamping element, the guide block is fixed on the mounting platform, and the gap between the guide block and the clamping element is not more than 0.5mm, so that the clamping element is prevented from rotating with the fastening bolt at an overlarge angle.
Further, a plurality of carousel stoppers have been laid along the circumference equidistance of carousel on the mounting platform, and the clearance between carousel stopper and the carousel week wall is no longer than 0.1mm for carry out radial spacing to the carousel.
Furthermore, the head of the fastening bolt penetrates through a rotating rod for applying force to the fastening bolt in a rotating mode, and an avoiding groove for providing a rotating space for the rotating rod is formed in the mounting platform.
Furthermore, a clamping fixture for positioning and clamping the casing is arranged on the turntable.
Furthermore, the turntable is provided with a circumferential scale mark so as to obtain the rotating angle of the turntable and the rotating position of the turntable.
The invention also provides a casing drilling device which comprises the rotary disc device.
The invention has the following beneficial effects:
the turntable device of the invention limits the turntables by one or more groups of turntable limiting mechanisms which are arranged on the periphery of the turntables in pairs and are oppositely grouped, the mounting platform is provided with the brake frame, the radial direction of the turntable on the brake frame is provided with the thread through hole for penetrating the fastening bolt, after the fastening bolt rotates towards the turntable, the clamping element arranged on the fastening bolt is pressed against the peripheral wall surface of the turntable, thereby the turntable is clamped by the clamping element of one or more groups of turntable limiting mechanisms, the turntable cannot rotate in the processing process, the processing position of a casing on the turntable cannot deviate, the processing precision of a drill hole on the casing is ensured to meet the requirement, and the turntable can be limited and fixed by the turntable limiting device after rotating any angle, the processing surfaces of different angles of the casing and the processing positions of different angles on the processing surfaces are conveniently adjusted, and the accurate positioning of the processing positions of the casing is ensured, thereby improving the processing precision of the casing.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a turntable device according to a preferred embodiment of the present invention;
fig. 2 is a schematic structural view of a turntable limiting mechanism of the turntable device according to the preferred embodiment of the present invention.
Illustration of the drawings:
1. a turntable; 2. mounting a platform; 3. a brake frame; 4. fastening a bolt; 5. a clamping element; 51. an inner bore; 52. an outer bore; 6. an avoidance groove; 7. a guide block; 8. carousel stopper.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.
FIG. 1 is a schematic structural view of a turntable device according to a preferred embodiment of the present invention; fig. 2 is a schematic structural view of a turntable limiting mechanism of the turntable device according to the preferred embodiment of the present invention.
As shown in fig. 1, the turntable device of the present embodiment includes a mounting platform 2 mounted on a casing drilling machine, a turntable 1 mounted on the mounting platform 2 for mounting and positioning a casing, and a turntable limiting device for limiting and locking the turntable 1 to perform drilling on the casing on the turntable 1. The turntable limiting device comprises turntable limiting mechanisms arranged on the mounting platform 2, and the turntable limiting mechanisms are arranged on the periphery of the turntable 1 in a pairwise opposite and grouped manner. And selecting a group of turntable limiting mechanisms in the same direction to fix the turntable 1 according to different processing directions of different processing surfaces of the casing. In the drilling process, the direction of the processing force applied to the case is consistent with the force application direction of the turntable limiting mechanism, so that the turntable 1 is prevented from deflecting and vibrating in the processing process. Carousel stop gear is including being fixed in brake frame 3 on mounting platform 2, wear to locate fastening bolt 4 on brake frame 3 along carousel 1 radially and install and be used for leaning on clamping element 5 on the perisporium face of carousel 1 on fastening bolt 4, be equipped with the screw thread through-hole that is used for wearing to establish fastening bolt 4 along carousel 1 on the brake frame 3, fastening bolt 4 rotates towards carousel 1, thereby drive clamping element 5 and remove towards carousel 1, and then make clamping element 5 support and lean on the week wall face of carousel 1, clamping element 5 relative application of force through the relatively carousel stop gear who lays is in order to press from both sides carousel 1 tightly. The turntable device of the invention limits the turntable 1 by one group or a plurality of groups of turntable limiting mechanisms which are arranged on the periphery of the turntable 1 in pairs and are opposite to each other in groups, the brake frame 3 is arranged on the mounting platform 2, the radial direction of the turntable 1 on the brake frame 3 is provided with a threaded through hole for penetrating the fastening bolt 4, after the fastening bolt 4 rotates towards the turntable 1, the clamping element 5 arranged on the fastening bolt 4 is abutted against the peripheral wall surface of the turntable 1, so that the turntable 1 is clamped by the clamping elements 5 of the two turntable limiting mechanisms, the turntable 1 cannot rotate in the processing process, the processing position of a casing on the turntable 1 cannot deviate, the processing precision of a drill hole on the casing is ensured to meet the requirement, the size and the cylindricity of the drill hole meet the requirement, and the turntable 1 can be limited and fixed by the turntable limiting devices after rotating any angle, thereby being convenient for adjusting the processing surfaces of different angles of the casing and the processing positions of different angles on the processing surfaces, the multi-cavity drilling machine is suitable for drilling of various multi-cavity casings, and accurate positioning of machining positions of the casings is guaranteed, so that machining accuracy of the casings is improved. After one machining surface is machined, one fastening bolt 4 is unscrewed, the turntable 1 is rotated, the other machining surface of the casing is rotated to the machining area of the machining machine tool, and then the unscrewed fastening bolt 4 is screwed again. Optionally, the turntable 1 is provided with a positioning step. The multistage steps are respectively matched with the shapes of the end faces of casings of different models.
As shown in fig. 2, the clamping surface of the clamping element 5 for abutting against the peripheral wall surface of the turntable 1 is an arc surface which is matched with the peripheral wall surface of the turntable 1. The rotary table 1 is limited and fixed between the two clamping elements 5 through the tightening force of the two fastening bolts 4, the clamping elements 5 are attached to the peripheral wall surface of the rotary table 1, the contact area is large, and under the same pressure, the friction force between the clamping elements 5 and the rotary table 1 is large, so that the rotary table 1 is clamped and fixed. The arc of the clamping surface of the clamping element 5 is 15-30 degrees. When the radian of the clamping surface is less than 15 degrees, the contact area between the clamping element 5 and the rotary disc 1 is small, the friction force between the clamping element 5 and the rotary disc 1 is not large enough, and the rotary disc 1 is easy to rotate. When the arc of the clamping surface is greater than 30 degrees, the size of the clamping member 5 is large, and it is difficult to tighten and rotate the fastening bolt 4. The surface roughness of the clamping surface of the clamping element 5 and the peripheral wall surface of the rotating disc 1 is larger than 6.3 μm, and the friction force between the clamping surface of the clamping element 5 and the peripheral wall surface of the rotating disc 1 is increased. Optionally, the clamping surface of the clamping element 5 is provided with a clamping groove for clamping the turntable 1. The tank bottom surface of the clamping groove is abutted against the peripheral wall surface of the rotary table 1, and the two tank wall surfaces of the clamping groove are respectively attached to the upper surface and the lower surface of the rotary table 1, so that the contact area between the clamping element 5 and the rotary table 1 is increased, and the rotary table 1 is clamped more stably by the two clamping elements 5 which are oppositely arranged. Optionally, the turntable device further comprises a horizontal limiting mechanism to ensure that the turntable 1 is kept horizontal. The horizontal limiting mechanism comprises an upper sliding groove, a lower sliding groove and a rolling piece, wherein the upper sliding groove is formed in the lower surface of the rotating disc 1 along the circumferential direction of the rotating disc 1, the lower sliding groove is formed in the upper surface of the mounting platform 2 and is opposite to the upper sliding groove, and the rolling piece is clamped between the upper sliding groove and the lower sliding groove. Support carousel 1 through the rolling member to carry out level spacing to carousel 1, avoid carousel 1 to take place the skew along vertical direction at rotation process and course of working, ensure that carousel 1 keeps the level and improves carousel 1's load-carrying capacity.
As shown in fig. 2, the clamping element 5 is provided with a blind hole for sleeving the clamping element 5 on the fastening bolt 4, the blind hole is composed of an inner hole 51 and an outer hole 52 which are communicated with each other, the outer hole 52 is in threaded matching connection with the fastening bolt 4, and the inner hole 51 is a smooth surface hole with a radial dimension larger than that of the fastening bolt 4. The clamping element 5 is in threaded fit connection with the fastening bolt 4 through the outer hole 52, and the inner hole 51 is in clearance fit with the fastening bolt 4, so when the fastening bolt 4 is rotated towards the rotary table 1, the clamping element 5 does not rotate along with the rotation of the fastening bolt 4, and only moves along with the fastening bolt 4 towards the rotary table 1 until the clamping element 5 abuts against the peripheral wall surface of the rotary table 1, the clamping surface of the clamping element 5 is ensured to be opposite to the rotary table 1, the contact area between the clamping element 5 and the rotary table 1 is large, the friction force between the clamping element 5 and the rotary table 1 is large, and the rotary table 1 is limited and fixed between the two clamping elements 5 through the tightening force of the two fastening bolts 4. Since the inner hole 51 having a large radial dimension is machined from the outer hole 52 having a small radial dimension, the machining difficulty increases as the difference in the radial dimension increases, and in this embodiment, the radial dimension of the inner hole 51 is 0.1mm larger than the radial dimension of the fastening bolt 4, which is easy to machine, but since the clamping member 5 is deflected by its own weight, the inner hole 51 comes into contact with the rotating fastening bolt 4 to generate a sliding friction force, so that the clamping member 5 rotates with the rotation of the fastening bolt 4, and therefore, in this embodiment, the guide block 7 is provided below the clamping member 5. The guide block 7 is fixed on the mounting platform 2, and the gap between the guide block 7 and the clamping element 5 is not more than 0.5mm, so that the clamping element 5 is prevented from rotating too much along with the fastening bolt 4, and a certain contact area is ensured after the clamping element 5 abuts against the turntable 1. When the clamping element 5 rotates along with the fastening bolt 4 to be in contact with the guide block 7, the clamping element cannot rotate continuously, so that the phenomenon that the contact area between the clamping element 5 and the turntable 1 is small, the friction force is small and the clamping is not stable due to the fact that the deflection angle of the clamping surface of the clamping element 5 is too large is avoided. The blind hole is located on the center line of the clamping element 5, so that the clamping surface of the clamping element 5 is uniformly pressed.
As shown in figure 1, a plurality of carousel stopper 8 have been laid along carousel 1's circumference equidistance on mounting platform 2, and the clearance between carousel stopper 8 and the 1 perisporium face of carousel is no longer than 0.1mm for carry out radial spacing to carousel 1. Avoiding the radial deflection of the turntable 1.
As shown in fig. 1, a rotating rod for rotating the fastening bolt 4 is inserted into the head of the fastening bolt 4, and an avoiding groove 6 for providing a rotating space for the rotating rod is provided on the mounting platform 2.
In the embodiment, the casing to be processed is a casing, and the casing is directly placed on the turntable 1 and fixed on the turntable 1 by the self-gravity of the casing. Optionally, the turntable 1 is provided with a clamping fixture for positioning and clamping the casing. And positioning and clamping the casing on a clamping fixture for processing. Optionally, a circumferential scale mark is arranged on the turntable 1 so as to obtain a rotation angle of the turntable 1 and a rotation position of the turntable 1. The clamping element 5 is provided with markings for pointing to the graduation marks on the turntable 1. After the casing is positioned and clamped on the clamping fixture, the zero scale on the rotary table 1 is opposite to the marks on the clamping elements 5, and the rotary table 1 is limited and fixed between the two clamping elements 5.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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 rotary table device comprises a mounting platform (2) arranged on a casing drilling machine tool, a rotary table (1) arranged on the mounting platform (2) and used for mounting and positioning a casing, and a rotary table limiting device used for limiting and locking the rotary table (1) so as to drill the casing on the rotary table (1),
the turntable limiting device comprises turntable limiting mechanisms arranged on the mounting platform (2), the turntable limiting mechanisms are arranged on the periphery of the turntable (1) in a pairwise opposite and grouped manner,
the turntable limiting mechanism comprises a brake frame (3) fixed on the mounting platform (2), a fastening bolt (4) arranged on the brake frame (3) in a penetrating manner along the radial direction of the turntable (1), and a clamping element (5) arranged on the fastening bolt (4) and used for abutting against the peripheral wall surface of the turntable (1),
the brake frame (3) is provided with a threaded through hole for penetrating the fastening bolt (4) along the radial direction of the turntable (1), the fastening bolt (4) rotates towards the turntable (1) so as to drive the clamping element (5) to move towards the turntable (1), the clamping element (5) is further abutted against the peripheral wall surface of the turntable (1), and the clamping element (5) of the turntable limiting mechanism which is relatively arranged applies force to clamp the turntable (1);
the clamping element (5) is used for abutting against a clamping surface on the peripheral wall surface of the rotary disc (1) and adopts an arc surface which is matched with the peripheral wall surface of the rotary disc (1); the radian of the clamping surface of the clamping element (5) is 15-30 degrees; the surface roughness of the clamping surface of the clamping element (5) and the peripheral wall surface of the rotating disc (1) is more than 6.3 mu m;
the clamping element (5) is provided with a blind hole for sleeving the clamping element (5) on the fastening bolt (4), the blind hole is composed of an inner hole (51) and an outer hole (52) which are communicated with each other, the outer hole (52) is in threaded matching connection with the fastening bolt (4), and the inner hole (51) is a smooth surface hole with the radial size larger than that of the fastening bolt (4); the radial dimension of the inner hole (51) is 0.1mm larger than that of the fastening bolt (4); a guide block (7) is arranged below the clamping element (5), the guide block (7) is fixed on the mounting platform (2), and the gap between the guide block (7) and the clamping element (5) is not more than 0.5mm, so that the clamping element (5) is prevented from rotating too much along with the fastening bolt (4);
the mounting platform (2) is gone up along a plurality of carousel stopper (8) have been laid to the circumference equidistance of carousel (1), carousel stopper (8) with the clearance between carousel (1) perisporium face is no longer than 0.1mm, be used for right carousel (1) carries out radial spacing.
2. The turntable device according to claim 1,
the head of the fastening bolt (4) penetrates through a rotating rod used for applying force to the fastening bolt (4) in a rotating mode, and an avoiding groove (6) used for providing a rotating space for the rotating rod is formed in the mounting platform (2).
3. The turntable device according to claim 1,
and the turntable (1) is provided with a clamping fixture for positioning and clamping a casing.
4. The turntable device according to claim 1,
be equipped with circumference scale mark on carousel (1) to in order to acquire carousel (1) pivoted angle with the turned position of carousel (1).
5. A drilling device for a casing, comprising the rotary table device according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910358329.8A CN110064774B (en) | 2019-04-30 | 2019-04-30 | Rotary disc device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910358329.8A CN110064774B (en) | 2019-04-30 | 2019-04-30 | Rotary disc device |
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| Publication Number | Publication Date |
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| CN110064774A CN110064774A (en) | 2019-07-30 |
| CN110064774B true CN110064774B (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910358329.8A Active CN110064774B (en) | 2019-04-30 | 2019-04-30 | Rotary disc device |
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| Country | Link |
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| CN (1) | CN110064774B (en) |
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| CN204221239U (en) * | 2014-11-06 | 2015-03-25 | 国家电网公司 | Rotating-table apparatus in automatic welder(welding machine) on cross slide seat |
| CN204504890U (en) * | 2015-01-13 | 2015-07-29 | 南京兴农齿轮制造有限公司 | A kind of Manual rotary calibration locating turntable device |
| CN205380462U (en) * | 2015-12-14 | 2016-07-13 | 贵州风雷航空军械有限责任公司 | Cartridge boring jig of part |
| CN106513747A (en) * | 2015-10-24 | 2017-03-22 | 重庆侨立管道制造有限公司 | Rotary expansion drilling combined vertical numerical control machine tool |
| CN208391043U (en) * | 2018-04-20 | 2019-01-18 | 江苏华信预应力制品有限公司 | Circle anchor slab halving hole boring grab |
| CN208513803U (en) * | 2018-05-21 | 2019-02-19 | 中航动力株洲航空零部件制造有限公司 | Fixture |
| CN208528279U (en) * | 2018-04-28 | 2019-02-22 | 新乡豫新车辆换热设备有限公司 | A kind of core group weldering rotary turnplate device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0937539A1 (en) * | 1998-02-24 | 1999-08-25 | Mikron SA Agno | Multi-station machine tool |
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2019
- 2019-04-30 CN CN201910358329.8A patent/CN110064774B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486149A (en) * | 2008-01-18 | 2009-07-22 | 洪敦猛 | Turntable |
| CN201881167U (en) * | 2010-12-22 | 2011-06-29 | 重庆渝通机械有限公司 | Fast pressing device |
| CN202411964U (en) * | 2012-01-12 | 2012-09-05 | 河南科技大学 | Graduated tool for machining shaft parts |
| CN204221239U (en) * | 2014-11-06 | 2015-03-25 | 国家电网公司 | Rotating-table apparatus in automatic welder(welding machine) on cross slide seat |
| CN204504890U (en) * | 2015-01-13 | 2015-07-29 | 南京兴农齿轮制造有限公司 | A kind of Manual rotary calibration locating turntable device |
| CN106513747A (en) * | 2015-10-24 | 2017-03-22 | 重庆侨立管道制造有限公司 | Rotary expansion drilling combined vertical numerical control machine tool |
| CN205380462U (en) * | 2015-12-14 | 2016-07-13 | 贵州风雷航空军械有限责任公司 | Cartridge boring jig of part |
| CN208391043U (en) * | 2018-04-20 | 2019-01-18 | 江苏华信预应力制品有限公司 | Circle anchor slab halving hole boring grab |
| CN208528279U (en) * | 2018-04-28 | 2019-02-22 | 新乡豫新车辆换热设备有限公司 | A kind of core group weldering rotary turnplate device |
| CN208513803U (en) * | 2018-05-21 | 2019-02-19 | 中航动力株洲航空零部件制造有限公司 | Fixture |
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| CN110064774A (en) | 2019-07-30 |
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