CN216939615U - CNC positioning fixture - Google Patents
CNC positioning fixture Download PDFInfo
- Publication number
- CN216939615U CN216939615U CN202220697988.1U CN202220697988U CN216939615U CN 216939615 U CN216939615 U CN 216939615U CN 202220697988 U CN202220697988 U CN 202220697988U CN 216939615 U CN216939615 U CN 216939615U
- Authority
- CN
- China
- Prior art keywords
- workpiece
- cnc
- machined
- bottom plate
- machining
- 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.)
- Active
Links
Images
Abstract
The utility model belongs to the technical field of positioning fixtures, and particularly relates to a CNC positioning fixture. This CNC positioning fixture includes: the device comprises a bottom plate suitable for placing workpieces to be processed, clamping mechanisms corresponding to all side surfaces of the workpieces to be processed, and a rotating mechanism for driving the bottom plate to rotate; when each side surface of the workpiece to be machined needs CNC machining, the corresponding clamping mechanism avoids the machining position so as to conveniently carry out CNC machining on the side surface of the workpiece to be machined; the rotating mechanism is suitable for driving the bottom plate to rotate 180 degrees so as to carry out CNC machining processing on the back of the workpiece to be machined through the machining hole in the bottom plate. According to the CNC positioning fixture, the machining position is avoided through the clamping mechanism, so that CNC machining processing can be conveniently carried out on the side face of the workpiece to be machined, the four side faces of the workpiece to be machined can be machined, the upper surface of the workpiece to be machined can be directly machined, CNC machining processing can be carried out on the back face of the workpiece to be machined through the rotating mechanism, therefore, machining of six faces of the workpiece to be machined is achieved, and the number of fixtures is reduced.
Description
Technical Field
The utility model belongs to the technical field of positioning fixtures, and particularly relates to a CNC positioning fixture.
Background
At present, in the aluminum alloy die-casting industry, the precision requirement of a product cannot be met directly through a die-casting forming technology, and basically, the precision requirement of the product is met by adding a machining mode after die-casting. In the product machining process, in order to ensure the machining precision of a product, a positioning clamp needs to be designed before machining, the clamp is fixed on a machine tool, and then the product is positioned and clamped through the clamp, so that the machining precision of the product is ensured to meet the product requirement.
In the prior art, the used fixture is machined on a die-casting product in a mechanical machining mode, generally only 1-3 surfaces can be machined, if 6 surfaces of the product are required to be machined through CNC (computer numerical control) machining to ensure the product precision, multiple sets of fixtures are required, multiple times of clamping can be completed, and due to the difference of multiple times of clamping, the machining precision of the product cannot be ensured, and the machining efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a CNC positioning fixture, which can finish the processing of 6 surfaces of a product by 1 set of fixtures through the combination of a clamping mechanism and a rotating mechanism.
In order to solve the above technical problem, the present invention provides a CNC positioning fixture, which includes:
the device comprises a bottom plate suitable for placing a workpiece to be machined, clamping mechanisms corresponding to all sides of the workpiece to be machined, and a rotating mechanism for driving the bottom plate to rotate; when each side surface of the workpiece needs CNC machining, the corresponding clamping mechanism avoids the machining position so as to conveniently carry out CNC machining on the side surface of the workpiece; the rotating mechanism is suitable for driving the bottom plate to rotate 180 degrees so as to carry out CNC machining processing on the back of the workpiece to be machined through the machining hole in the bottom plate.
Further, the clamping mechanism includes: the pressure heads of the 90-degree rotary cylinders and the 90-degree rotary cylinders are arranged on the bottom plate; when each side surface of a workpiece to be machined needs CNC machining, each 90-degree rotating cylinder on the corresponding surface drives the corresponding 90-degree rotating cylinder to rotate by 90 degrees so as to give way to a machining position.
Further, the rotation mechanism includes: the positioning device comprises a four-axis positioning seat fixed on a CNC machine positioning platform, a four-axis turntable rotationally connected to the four-axis positioning seat, and a motor driving the four-axis turntable to rotate; the four-axis rotary table is fixedly connected with the bottom plate; the motor is suitable for driving the four-axis rotary table to rotate, and the bottom plate rotates along with the four-axis rotary table so as to carry out CNC machining treatment on the back of the workpiece to be machined through the machining hole in the bottom plate.
Further, the CNC positioning fixture also includes: an auxiliary clamping mechanism; the auxiliary clamping mechanism is suitable for the auxiliary clamping mechanism to clamp the workpiece to be machined.
Further, the auxiliary gripping mechanism includes: the clamping mechanism comprises a plurality of thin air cylinders distributed on the inner side of the clamping mechanism and thin air cylinder pressure heads corresponding to the thin air cylinders; the thin cylinder is suitable for driving a pressure head of the thin cylinder to move so as to compress a workpiece to be machined.
Further, the workpiece to be machined is connected with the bottom plate through a spring positioning pin.
Furthermore, a plurality of support columns are uniformly distributed on the bottom plate.
Further, the diameter of the support column is 5-8 mm.
Furthermore, a plurality of fool-proof columns are distributed on the bottom plate.
The CNC positioning clamp has the advantages that when each side face of a workpiece needs to be subjected to CNC machining, the corresponding clamping mechanism avoids the machining position, so that the CNC machining of the side face of the workpiece can be conveniently carried out, the four side faces of the workpiece can be machined, the upper surface of the workpiece can be directly machined, the CNC machining of the back face of the workpiece can be realized through the rotating mechanism, the six faces of the workpiece can be machined, the number of the clamps is reduced, and the machining efficiency of products is improved.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a CNC positioning fixture of the present invention;
fig. 2 is a partial schematic view of the CNC positioning fixture of the present invention removing the part to be processed.
In the figure:
bottom plate 1, machining hole 11 treats machined part 2, fixture 3, 90 revolving cylinder 31, 90 revolving cylinder pressure heads 32, rotary mechanism 4, four-axis positioning seat 41, four-axis revolving stage 42, motor 43, CNC board positioning platform 5, supplementary fixture 6, slim cylinder 61, slim cylinder pressure head 62, support column 7, prevent staying post 8.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all 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.
Example 1
FIG. 1 is a schematic view of a CNC positioning fixture of the present invention;
as shown in fig. 1, the present embodiment provides a CNC positioning fixture, which includes: the device comprises a bottom plate 1 suitable for placing a workpiece 2 to be machined, clamping mechanisms 3 arranged corresponding to all sides of the workpiece 2 to be machined, and a rotating mechanism 4 for driving the bottom plate 1 to rotate; when each side surface of the workpiece 2 to be machined needs CNC machining, the corresponding clamping mechanism 3 avoids the machining position so as to conveniently carry out CNC machining on the side surface of the workpiece 2 to be machined; the rotating mechanism 4 is suitable for driving the bottom plate 1 to rotate 180 degrees so as to perform CNC processing on the back surface of the workpiece 2 to be processed through the processing hole 11 on the bottom plate 1. Treat that each side of machined part 2 needs CNC to add man-hour, its corresponding fixture 3 dodges out the processing position to in order to treat the side of machined part 2 and carry out CNC processing, can accomplish the processing of treating four sides of machined part 2, treat that the upper surface of machined part 2 can directly process, can realize treating the back of machined part 2 through rotary mechanism 4 and carry out CNC processing, thereby realize treating the processing of six faces of machined part 2, reduced anchor clamps quantity, promoted the machining efficiency of product.
Optionally, the clamping mechanism 3 includes: a plurality of 90-degree rotary cylinders 31 and 90-degree rotary cylinder pressure heads 32 which are arranged on the bottom plate 1; when each side surface of the workpiece 2 to be machined needs CNC machining, each 90-degree rotating cylinder 31 of the corresponding surface drives the corresponding 90-degree rotating cylinder pressure head 32 to rotate by 90 degrees so as to give way to a machining position. When the CNC machine station processes a side surface, the 90-degree rotating cylinders 31 on the corresponding side drive the corresponding 90-degree rotating cylinder pressure heads 32 to rotate by 90 degrees, the processing position is made away, the 90-degree rotating cylinders 31 on the other three sides drive the corresponding 90-degree rotating cylinder pressure heads 32 to compress the workpiece to be processed 2, and so on, 4 outer side surfaces of the workpiece to be processed 2 can be processed in place at one time.
Optionally, the rotating mechanism 4 includes: the positioning device comprises a four-axis positioning seat 41 fixed on a CNC machine positioning platform 5, a four-axis turntable 42 rotationally connected to the four-axis positioning seat 41, and a motor 43 driving the four-axis turntable 42 to rotate; the four-axis rotary table 42 is fixedly connected with the bottom plate 1; the motor 43 is adapted to drive the four-axis rotary table 42 to rotate, and the bottom plate 1 rotates therewith, so as to perform CNC machining processing on the back surface of the workpiece 2 to be machined through the machining hole 11 on the bottom plate 1. Because the machining hole 11 is reserved on the bottom plate 1, the four-axis rotary table 42 is driven by the motor 43 to rotate to drive the bottom plate 1 to rotate 180 degrees, so that the position of a to-be-machined workpiece to be machined is machined through the machining hole 11, and the machining of the back of the to-be-machined workpiece 2 is completed.
Fig. 2 is a partial schematic view of the CNC positioning fixture of the present invention removing the part to be processed.
As shown in fig. 2, the CNC positioning fixture further comprises: an auxiliary clamping mechanism 6; the auxiliary clamping mechanism 6 is suitable for the auxiliary clamping mechanism 3 to clamp the workpiece 2 to be processed.
Optionally, the auxiliary clamping mechanism 6 includes: a plurality of thin air cylinders 61 distributed at the inner side of the clamping mechanism 3, and thin air cylinder pressure heads 62 corresponding to the thin air cylinders 61; the thin cylinder 61 is suitable for driving the thin cylinder pressure head 62 to move so as to press the workpiece 2 to be processed. The thin cylinder 61 is arranged on the inner side close to the workpiece, and the thin cylinder pressure head 62 is driven to move through the thin cylinder 61 so as to compress the workpiece 2 to be processed, so that the workpiece 2 to be processed is compressed in an auxiliary mode, and meanwhile, the stress balance of the workpiece 2 to be processed can be guaranteed.
In this embodiment, the workpiece 2 to be processed is connected to the bottom plate 1 through a spring positioning pin. The workpiece 2 to be processed is positioned through the spring positioning pin, and the positioning pin can float up and down in the positioning process, so that the positioning precision is ensured.
In this embodiment, evenly distributed has a plurality of support column 7 on bottom plate 1, through support column 7 and the setting of the 6 equipartitions of supplementary fixture, has guaranteed to treat that machined part 2 is balanced in the tight in-process atress of clamp, has effectively solved and has treated machined part 2 and cause the problem of warping in the tight in-process of clamp.
Wherein, the diameter of the support column 7 is 5-8 mm; preferably, the diameter of the supporting column 7 is 6mm, so that the workpiece 2 to be processed can be stressed uniformly without deformation.
In this embodiment, a plurality of fool-proof columns 8 are distributed on the bottom plate 1, and the position of the workpiece to be machined 2 can be correctly clamped by the fool-proof columns 8, so that reverse placement or misplacement is prevented.
In summary, according to the CNC positioning fixture disclosed by the utility model, when each side surface of the workpiece 2 needs to be CNC machined, the corresponding clamping mechanism 3 avoids the machining position, so that the CNC machining treatment is performed on the side surface of the workpiece 2, the machining of four side surfaces of the workpiece 2 can be completed, the upper surface of the workpiece 2 can be directly machined, and the CNC machining treatment can be performed on the back surface of the workpiece 2 through the rotating mechanism 4, so that the machining of six surfaces of the workpiece 2 is realized, the number of fixtures is reduced, and the machining efficiency of the product is improved; through the support column 7 and the uniform arrangement of the auxiliary clamping mechanism 6, the stress balance of the workpiece 2 to be machined in the clamping process is ensured, and the problem of deformation of the workpiece 2 to be machined in the clamping process is effectively solved.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. A CNC positioning fixture, comprising:
the device comprises a bottom plate suitable for placing a workpiece to be machined, clamping mechanisms corresponding to all sides of the workpiece to be machined, and a rotating mechanism for driving the bottom plate to rotate;
when each side surface of the workpiece needs CNC machining, the corresponding clamping mechanism avoids the machining position so as to conveniently carry out CNC machining on the side surface of the workpiece;
the rotating mechanism is suitable for driving the bottom plate to rotate 180 degrees so as to carry out CNC machining processing on the back of the workpiece to be machined through the machining hole in the bottom plate.
2. The CNC positioning fixture of claim 1,
the fixture includes: the pressure heads of the 90-degree rotary cylinders and the 90-degree rotary cylinders are arranged on the bottom plate;
when each side surface of a workpiece to be machined needs CNC machining, each 90-degree rotating cylinder on the corresponding surface drives the corresponding 90-degree rotating cylinder to rotate by 90 degrees so as to give way to a machining position.
3. The CNC positioning fixture of claim 1,
the rotating mechanism includes: the positioning device comprises a four-axis positioning seat fixed on a CNC machine positioning platform, a four-axis turntable rotationally connected to the four-axis positioning seat, and a motor driving the four-axis turntable to rotate;
the four-axis rotary table is fixedly connected with the bottom plate;
the motor is suitable for driving the four-axis rotary table to rotate, and the bottom plate rotates along with the four-axis rotary table so as to carry out CNC machining treatment on the back of the workpiece to be machined through the machining hole in the bottom plate.
4. The CNC positioning fixture of claim 1,
the CNC positioning fixture further comprises: an auxiliary clamping mechanism;
the auxiliary clamping mechanism is suitable for the auxiliary clamping mechanism to clamp the workpiece to be machined.
5. The CNC positioning fixture of claim 4,
the auxiliary clamping mechanism comprises: the clamping mechanism comprises a plurality of thin air cylinders distributed on the inner side of the clamping mechanism and thin air cylinder pressure heads corresponding to the thin air cylinders;
the thin cylinder is suitable for driving a pressure head of the thin cylinder to move so as to compress a workpiece to be machined.
6. The CNC positioning fixture of claim 1,
the workpiece to be machined is connected with the bottom plate through the spring positioning pin.
7. The CNC positioning fixture of claim 1,
a plurality of supporting columns are uniformly distributed on the bottom plate.
8. The CNC positioning fixture of claim 7,
the diameter of the support column is 5-8 mm.
9. The CNC positioning fixture of claim 1,
a plurality of fool-proof columns are distributed on the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220697988.1U CN216939615U (en) | 2022-03-28 | 2022-03-28 | CNC positioning fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220697988.1U CN216939615U (en) | 2022-03-28 | 2022-03-28 | CNC positioning fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216939615U true CN216939615U (en) | 2022-07-12 |
Family
ID=82298618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220697988.1U Active CN216939615U (en) | 2022-03-28 | 2022-03-28 | CNC positioning fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216939615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070468A (en) * | 2022-07-19 | 2022-09-20 | 深圳市强瑞精密装备有限公司 | Multi-station automatic rotating and positioning structure |
-
2022
- 2022-03-28 CN CN202220697988.1U patent/CN216939615U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070468A (en) * | 2022-07-19 | 2022-09-20 | 深圳市强瑞精密装备有限公司 | Multi-station automatic rotating and positioning structure |
| CN115070468B (en) * | 2022-07-19 | 2023-12-22 | 深圳市强瑞精密装备有限公司 | Multi-station automatic rotary positioning structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5647704A (en) | Machining opposite surfaces of a workpiece to be parallel to one another | |
| CN216939615U (en) | CNC positioning fixture | |
| KR101336427B1 (en) | Machining center comprising workpiece fixturing unit | |
| CN111975304A (en) | Processing technique method for electric vehicle speed reducer shell | |
| CN201783835U (en) | Eccentric positioning and clamping fixture | |
| CN218746397U (en) | Multi-workpiece milling tool clamp | |
| CN110170840B (en) | Processing method of bottom plate of sewing machine and processing device of lower shaft hole and side shaft hole | |
| CN210677787U (en) | Precise rotary machining structure | |
| CN105171461B (en) | The processing method of microscope base | |
| CN211102875U (en) | Numerical control machining center | |
| CN211361406U (en) | Clamping device | |
| CN209736778U (en) | High efficiency beveler | |
| CN213003987U (en) | Pneumatic clamp for plate body machining | |
| CN217727988U (en) | Caterpillar track link multiple-process machining clamp | |
| CN217254472U (en) | Adjusting mechanism of four-head machine four-turntable | |
| CN215967600U (en) | But quick replacement's digit control machine tool anchor clamps | |
| CN217317558U (en) | Anchor clamps convenient to foundry goods side processing | |
| CN110666549A (en) | Numerical control machining center | |
| CN213561158U (en) | Guide block machining clamp device | |
| CN219170855U (en) | Mechanical part machining equipment | |
| CN212947266U (en) | 5G substrate excircle processing anchor clamps | |
| KR102185532B1 (en) | Jig device for gas regulator body processing | |
| CN210938267U (en) | Clamp assembly and machine tool | |
| CN218776148U (en) | Clamp for machining bicycle pipe fitting | |
| CN219853272U (en) | Universal turntable type clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |