CN215787032U - Zero location frock switching device - Google Patents
Zero location frock switching device Download PDFInfo
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- CN215787032U CN215787032U CN202121879128.1U CN202121879128U CN215787032U CN 215787032 U CN215787032 U CN 215787032U CN 202121879128 U CN202121879128 U CN 202121879128U CN 215787032 U CN215787032 U CN 215787032U
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Abstract
The utility model provides a switching device which can reduce the contact area between a zero positioning system clamp and a workpiece and improve the application range of the switching device on the premise of ensuring the clamping flexibility, precision and efficiency. The center of the body of the switching device is provided with a connecting hole which is longitudinally communicated and is used for being matched with a connecting bolt. The upper end of the body is a workpiece matching end which is used for matching with a standard hole on a workpiece. The lower end of the body is a zero positioning system clamp mating end and is used for being matched with a standard pin of a zero positioning system clamp. The adapter device greatly expands the application range of the standardized clamp under the conditions of almost no loss of clamping precision and little loss of clamping stability. It can be applicable to different types of zero positioning system clamps. The zero positioning system clamp generally has a standardized connecting mechanism, and connecting structures of a workpiece end and a clamp end are respectively designed according to the characteristic that the standard connecting mechanism is connected with a workpiece in a matching manner, so that the switching between the workpiece and the clamp is realized.
Description
Technical Field
The utility model relates to the technical field of workpiece processing, in particular to a zero-positioning tool switching device.
Background
In the field of automobile trial production, when a high-precision automobile main model is processed, how to realize the clamping of high precision, high efficiency and flexibility of a workpiece is a difficult problem which puzzles many host factories and trial production factories. Some advanced clamp suppliers provide the concept of a zero positioning system clamp, the clamp is highly flexible, high in clamping precision and efficiency and very suitable for processing small-batch and high-precision workpieces.
However, in order to ensure the universality and the precision of clamping, the zero positioning system clamp is generally large in design size, and can be greatly limited when some small parts and parts with special structures are processed, so that the application range of the zero positioning system clamp is greatly limited.
Generally, under the condition that the size of a workpiece is too small or the workpiece interferes with a zero positioning system, other types of clamping modes can be selected, such as designing and processing a milling bracket adaptive to the workpiece, positioning and locking the workpiece on the bracket after the B surface structure of the workpiece is processed, establishing a workpiece coordinate system based on the bracket and processing the A surface of the workpiece; or a multidirectional corner non-turnover processing mode is adopted, a reinforcing rib structure is designed to fix the workpiece on a blank frame, a proper placing angle is selected to clamp the workpiece blank on a workbench, the workpiece is finished under the condition of no turnover through multi-angle processing, and then reinforcing ribs are cut off; or the turnover clamping of the workpiece is realized by adopting a soft fixing mode such as plaster beating.
The clamping mode of the milling support is designed and processed, because the trial model workpiece is only 1 part, the support can only be scrapped after being used, the processing cost is increased, the support is designed and processed independently, extra working hours are increased, and the economical efficiency is poor. The mode of processing without turning over at the multi-directional corner is limited by the structure of a workpiece, for example, the workpiece with a flanging cannot adopt the clamping mode, and the clamping mode is very easy to generate the cutter chattering phenomenon and has higher requirement on the programming skill level. In the scene of processing high-precision workpieces in soft clamping modes such as gypsum beating, the clamping rigidity is insufficient, and the workpiece tolerance is easily caused.
In view of the above technical problems, the present inventors have long studied and practiced the present invention.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a zero positioning tool switching device which solves the problem that a high-precision model workpiece cannot be applied to a zero positioning system clamp due to size or structure limitation.
The technical scheme adopted by the utility model is as follows:
the zero positioning tool switching device comprises a body, wherein a connecting hole which is longitudinally communicated is formed in the center of the body and is used for being matched with a connecting bolt;
the upper end of the body is a workpiece matching end which is used for matching with a standard hole on a workpiece;
the lower end of the body is a zero positioning system clamp matching end which is used for being matched with a standard pin of a zero positioning system clamp;
the connecting hole penetrates through the workpiece mating end and the zero positioning system clamp mating end.
Furthermore, the workpiece matching end is a convex column, and the size of the convex column is matched with a standard hole on the workpiece.
Further, the bottom surface of the zero positioning system clamp mating end is provided with a clamp mating hole, and the clamp mating hole is matched with the upper end protruding part of the standard pin of the zero positioning system clamp.
Further, the central line of the connecting hole is superposed with the central lines of the convex column and the clamp matching hole.
Furthermore, the circumferential surface of the zero positioning system clamp matching end is provided with a concave curved surface formed by rotating an arc line for one circle around the central line of the connecting hole.
Further, the center line of the connecting hole is overlapped with the center lines of the convex column and the zero positioning system clamp matching end.
Furthermore, the switching device is arranged between the workpiece and a standard pin of the zero positioning system clamp, the workpiece and the standard pin are fixedly connected through a connecting bolt, and the standard pin is locked on the zero positioning system clamp.
The utility model provides a switching device which can reduce the contact area between a zero positioning system clamp and a workpiece and improve the application range of the switching device on the premise of ensuring the clamping flexibility, precision and efficiency. The adapter device greatly expands the application range of the standardized clamp under the conditions of almost no loss of clamping precision and little loss of clamping stability. In the aspect of process, the design concept can be expanded, and the fixture is suitable for zero positioning system fixtures of different types. The zero positioning system clamp generally has a standardized connecting mechanism, and connecting structures of a workpiece end and a clamp end are respectively designed according to the characteristic that the standard connecting mechanism is connected with a workpiece in a matching manner, so that the switching between the workpiece and the clamp is realized. In terms of structure, the overall dimension of the switching device is determined by comprehensively considering the dimension of the clamping surface of the workpiece and the clamping stability, the thickness is determined by comprehensively considering the required lifting height of the workpiece, the clamping stability and the length of the bolt, and the contact surfaces of the switching device, the workpiece and the clamp are determined according to the standard connection structure of a zero positioning system and the tolerance requirement.
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 structural view of an adapter device according to embodiment 1 of the present invention;
fig. 2 shows an installation cross-sectional view of the adapter in embodiment 1 of the present invention;
fig. 3 is a schematic view showing the use of the adapter device in embodiment 1 of the present invention;
fig. 4 is a schematic structural view showing an adapter in embodiment 2 of the present invention;
FIG. 5 is a schematic diagram of a prior art zero positioning system fixture;
fig. 6 is a schematic structural view showing an adapter device according to embodiment 3 of the present invention;
fig. 7 is a schematic view showing a workpiece positioning method using the transfer device of the present invention.
Detailed Description
The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, in order to solve the problem that a zero positioning system clamp cannot be applied to a high-precision model workpiece due to size or structure limitation, the utility model provides an adapter 10, which comprises a body 1, wherein the center of the body 1 is provided with a connecting hole 13 which is longitudinally communicated, and the connecting hole 13 is used for being matched with a connecting bolt. The upper end of the body 1 is a workpiece mating end 11 for matching with a standard hole on a workpiece. The lower end of the body 1 is a zero positioning system clamp mating end 12 for matching with a standard pin of a zero positioning system clamp. A connection hole 13 extends through the workpiece mating end 11 and the zero positioning system clamp mating end 12. There are multiple zero positioning system anchor clamps on the market, and the location is pressed from both sides tight principle differently, and the structure is different, but all can realize the flexibility clamping.
Example 1
In terms of structure, the overall dimension of the adapter 10 is determined by comprehensively considering the dimension of the clamping surface of the workpiece and the clamping stability, the thickness is determined by comprehensively considering the required lifting height of the workpiece, the clamping stability and the bolt length, and the contact surfaces with the workpiece and the clamp are determined according to the standard connection structure of the zero positioning system and the tolerance requirement.
As shown in fig. 1, in the present embodiment, the zero positioning tool adapter 10 is a general structure designed based on a brand of Plus 99 zero positioning system fixture, and is made of 7075T651 aluminum alloy. The workpiece mating end 11 of the adapter 10 is a post having a size that matches a standard hole in the workpiece. The bottom surface of the zero positioning system clamp mating end 12 has a clamp mating hole 121, the clamp mating hole 121 mating with an upper end protrusion of a standard pin of the zero positioning system clamp. The center line of the connecting hole 13 coincides with the center line of the boss and the jig fitting hole 121.
Where a is the diameter of the workpiece mating end 11, b is the diameter of the attachment hole 13, c is the diameter of the fixture mating hole 121, d is the diameter of the zero positioning system fixture mating end 12, and e is the set-up height of the adapter.
As shown in fig. 2 and 3, in use, the workpiece mating end 11 of the adapter 10 is first connected to the workpiece 20, i.e., the stud is matched to a standard locating hole of the workpiece. The zero positioning system clamp mating end 12 mates with the zero positioning system standard pin 30 and is tightened to the workpiece 20 with the connecting bolt 40 passing through the zero positioning system standard pin 30 and the adapter 10. After the connection with the workpiece 20 is completed, the standard pin 30 is connected with the zero positioning system clamp 50, and the standard pin can be directly positioned and locked by a gas spring of a switch zero positioning system.
Example 2
In the process aspect, the design thought of the switching device can be expanded, and the switching device is suitable for zero positioning system clamps of different types. The zero positioning system clamp generally has a standardized connecting mechanism, and connecting structures of a workpiece end and a clamp end are respectively designed according to the characteristic that the standard connecting mechanism is connected with a workpiece in a matching manner, so that the switching between the workpiece and the clamp is realized. The switching device can be adjusted and designed according to the tool model and size, the workpiece structure and the size change.
As shown in fig. 4, in the present embodiment, a Mini 90 model zero positioning system fixture of one brand is used, and compared with embodiment 1, the size of the adapter is adjusted as follows, so that the Mini 90 model zero positioning system fixture can be adapted.
The diameter of the workpiece mating end 11 is adjusted to 0.5a, the diameter of the attachment hole 13 is adjusted to 0.6b, the diameter of the fixture mating hole 121 is adjusted to 0.5c, the diameter of the zero positioning system fixture mating end 12 is adjusted to 0.6d, and the setting height of the adapter is adjusted to 0.75 e.
Example 3
In this embodiment, as shown in fig. 5, a european brand zero-alignment fixture is used, which simultaneously performs alignment and locking by pressing a ball 100 against a ball stud.
As shown in fig. 6, compared with the embodiments 1 and 2, the peripheral surface of the zero positioning system clamp mating end 12 of the adapter has a concave curved surface 122 formed by rotating an arc for one circle around the center line of the connection hole, which coincides with the center line of the stud and the zero positioning system clamp mating end. The lower part of the defined switching device is directly matched with the ball structure of the fixture through an arc-shaped structure, and the upper part of the defined switching device is matched with the workpiece so as to be matched with the zero positioning system fixture.
Example 4
In this embodiment, taking the workpiece 20 as an example for clamping the column guard plate, the column guard plate has an inward-shrinking flanging structure and a small part width, and when clamping is performed by using a standard zero positioning system clamp, interference occurs, and the clamp is exposed outside the workpiece, so that the workpiece cannot be processed in place when the clamp is not cut during processing.
As shown in fig. 7, the above-mentioned adapter is used to match and connect the standard pin 30 of the zero positioning system with the positioning hole of the adapter 10. Then, the pin-type structure of the adapter 10 is connected with the standard hole of the workpiece in a matching manner, and the multiple sets of adapters and the standard pins are respectively locked on the workpiece through the connecting bolts. The zero positioning system fixture 50 and the standard pin are matched to connect the workpiece to the zero positioning system fixture through the adapter. This structure can be controlled within 0.02mm because of the loss of precision that transitional coupling produced, raises the work piece to suitable height, has solved the problem that work piece and anchor clamps interfere and obstruct the lower tool in the course of working.
Compared with the traditional clamp, the zero positioning system clamp has the advantages of obvious advantages, high standardization, high flexibility, high precision and high clamping speed, can be used for batch workpiece processing, and is more suitable for processing trial-made workpieces with small single-piece requirements. The design idea and the structure provided by the device effectively solve the problems of large size and easy interference of the zero positioning system clamp, greatly expand the application range of the zero positioning system clamp and form effective supplement to the zero positioning system clamp. Compared with a fixture directly applying a zero positioning system, the fixture for the main automobile model has the advantages that a customized fixture of one meeting is more adopted for the main automobile model, and the scheme can ensure a relatively stable and uniform clamping effect.
The foregoing is merely a preferred embodiment of this invention, which is intended to be illustrative, and not limiting. The structure, the connection mode and the like of all the components in the utility model can be changed, and the equivalent transformation and the improvement on the basis of the technical scheme of the utility model are not excluded from the protection scope of the utility model.
Claims (7)
1. The zero-positioning tool switching device is characterized by comprising a body, wherein the center of the body is provided with a connecting hole which is longitudinally communicated, and the connecting hole is used for being matched with a connecting bolt;
the upper end of the body is a workpiece matching end which is used for matching with a standard hole on a workpiece;
the lower end of the body is a zero positioning system clamp matching end which is used for being matched with a standard pin of a zero positioning system clamp;
the connecting hole penetrates through the workpiece mating end and the zero positioning system clamp mating end.
2. The zero positioning tooling adapter of claim 1 wherein said workpiece mating end is a post sized to mate with a standard hole in a workpiece.
3. The zero set tooling adapter of claim 2 wherein the bottom surface of the zero set system fixture mating end has fixture mating holes that mate with the upper end raised portions of the standard pins of the zero set system fixture.
4. The zero positioning tool switching device of claim 3, wherein the center line of the connecting hole coincides with the center lines of the convex column and the clamp matching hole.
5. The zero positioning tooling adapter device of claim 2, wherein the circumferential surface of the zero positioning system clamp mating end has a concave curved surface formed by an arc rotating a circle around the center line of the connecting hole.
6. The zero positioning tooling adapter device of claim 5, wherein a center line of the connecting hole coincides with a center line of the mating end of the boss and the zero positioning system clamp.
7. The zero positioning tooling adapter of claim 1 wherein the adapter is mounted between the workpiece and a standard pin of the zero positioning system fixture and is fixedly connected thereto by a connecting bolt, the standard pin being locked to the zero positioning system fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121879128.1U CN215787032U (en) | 2021-08-12 | 2021-08-12 | Zero location frock switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121879128.1U CN215787032U (en) | 2021-08-12 | 2021-08-12 | Zero location frock switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215787032U true CN215787032U (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121879128.1U Active CN215787032U (en) | 2021-08-12 | 2021-08-12 | Zero location frock switching device |
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| Country | Link |
|---|---|
| CN (1) | CN215787032U (en) |
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2021
- 2021-08-12 CN CN202121879128.1U patent/CN215787032U/en active Active
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