CN113109058A - Quick change device of automobile checking fixture positioning mechanism - Google Patents
Quick change device of automobile checking fixture positioning mechanism Download PDFInfo
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- CN113109058A CN113109058A CN202110517629.3A CN202110517629A CN113109058A CN 113109058 A CN113109058 A CN 113109058A CN 202110517629 A CN202110517629 A CN 202110517629A CN 113109058 A CN113109058 A CN 113109058A
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- connecting support
- positioning
- quick
- checking fixture
- internal thread
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- General Physics & Mathematics (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention provides a quick-change device of a positioning mechanism of an automobile checking fixture, which comprises an assembly A and an assembly B, wherein the assembly A and the assembly B realize the quick locking and the disassembly of the two assemblies by the matching of a thread positioning block and an internal thread device of the assembly A and the assembly B, and simultaneously realize the accurate positioning of the two assemblies by virtue of a positioning convex hull and a positioning groove; the connection and the disassembly of the positioning mechanism and the checking fixture body are simplified, the operation is convenient, the installation efficiency is improved, and the time and the labor are saved; the quick-change device can meet the requirement of quick replacement of different positioning mechanisms and different parts, ensures reliability and saves material cost.
Description
Technical Field
The invention relates to the field of automobile processing and manufacturing, in particular to a quick dismounting device for checking tools such as a matching sample frame and a measuring support.
Background
In the design and manufacturing process of the checking fixture, different parts need to be positioned by the same positioning mechanism, or different positioning mechanisms need to be used by the same part, so that the positioning mechanism needs to be designed into a device capable of being switched rapidly, the material cost is saved, the mounting efficiency is improved, and the time for repeatedly switching the positioning mechanism is saved. The conventional method adopts a positioning pin for positioning, and then utilizes a screw for locking connection, the requirements of the processing precision and the assembly precision of the positioning pin are too high, the processing cost is greatly increased, a large amount of time is wasted by using the screw for locking, and the function of quick switching of a plurality of groups of positioning mechanisms cannot be met; the conventional method is complex in operation, time-consuming and labor-consuming, and poor in connection reliability.
Disclosure of Invention
In order to solve the problems, the invention provides a quick change device of a positioning mechanism of an automobile checking fixture.
The main content of the invention comprises:
a quick-change device of a positioning mechanism of an automobile checking fixture comprises an assembly A and an assembly B, wherein the assembly A comprises an upper connecting support used for being connected with the positioning mechanism and a thread positioning block arranged on the upper connecting support; the component B comprises a lower connecting support used for connecting a checking fixture, an internal thread device which is rotatably arranged in the lower connecting support and is detachably connected with the thread positioning block, and a handle used for rotating the internal thread device; the thread positioning block is provided with an external thread; the internal thread device comprises an installation through hole, a plurality of internal threads matched with the external threads are arranged on the inner wall of the installation through hole at intervals, and the diameter of the inner wall of the installation through hole between every two adjacent internal threads is larger than the inner diameter of the internal threads; the quick-change device is in working and non-working states through the handle, the internal thread is meshed with the external thread in the working state, and the internal thread and the external thread are arranged in a staggered mode in the non-working state.
Preferably, the device further comprises a fine positioning device, the fine positioning device comprises a positioning convex hull and a positioning groove which are in zero clearance fit, and the positioning convex hull and the positioning groove are respectively arranged on the upper connecting support and the lower connecting support.
Preferably, the lower connecting support comprises a lower base and a middle connecting support arranged on the lower base, and the internal thread device is rotatably arranged in the middle connecting support.
Preferably, the middle connecting support and the lower base are respectively provided with the positioning convex hull and the positioning groove.
Preferably, the middle connecting support is detachably connected with the lower base through a pin or a screw.
Preferably, a rotating groove body is formed in one surface, facing the upper connecting support, of the lower connecting support, and the internal thread device is arranged in the rotating groove body; an adjusting through groove is formed in one side of the lower connecting support, the adjusting through groove is communicated with the rotating groove body, the handle is arranged in the adjusting through groove, one end of the handle is connected with the internal thread device, and the other end of the handle extends to the outer side of the lower connecting support.
Preferably, the internal thread device comprises a first body and a second body which are arranged up and down, the first body is cylindrical, the second body is a regular polygonal cylinder, a plurality of side surfaces of the second body are provided with mounting threaded holes, and one end of the handle is in threaded connection with the mounting threaded holes.
Preferably, the rotary groove body comprises a first groove body and a second groove body which are arranged up and down; the cross sections of the first tank body and the second tank body are circular, and the diameter of the first tank body is smaller than that of the second tank body; the first body is disposed within the first channel and the second body is disposed within the second channel.
Preferably, the upper connecting support and the thread positioning block are integrally arranged or detachably connected through a pin and a screw.
Compared with the prior art, the quick change device of the positioning mechanism of the automobile checking fixture, provided by the invention, has the following beneficial effects:
(1) the handle of the component B is used for rotating the internal thread device to be meshed with and separated from the thread positioning block of the component A, so that different positioning mechanisms connected to the upper connecting support and quick installation and disassembly connected to the lower connecting support are realized, the operation is convenient, and the time and labor are saved;
(2) the upper connecting support and the lower connecting support are provided with the positioning convex hulls and the positioning grooves which are matched with each other, so that the positioning mechanism and the checking fixture are accurately positioned;
(3) through connecting support and lower base in setting up, not only can reduce the cost of changing whole lower connection support, and can realize the accordant connection with the connection of different examines the utensil.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the component A from another perspective;
FIG. 4 is a schematic structural view of the female screw means;
FIG. 5 is a schematic structural view of a middle connection support;
reference numerals:
1-a component; 10-connecting a support; 11-a screw tooth positioning block; 110-external threads; 111-pin and screw hole;
2-B component; 20-lower connecting support; 20-1-lower base; 21-middle connecting support; 210-rotating the trough body; 210-1-a first trough; 210-2-a second trough; 211-adjusting the through slot; 22-internal thread means; 22-1-a first body; 22-2-second
A body; 220-mounting a through hole; 221-internal thread; 222-mounting threaded holes; 23-a handle;
30-positioning the convex hull; 31-positioning groove.
Detailed Description
The technical scheme protected by the invention is specifically explained in the following by combining the attached drawings.
Please refer to fig. 1 to 5. The invention provides a quick-change device of a positioning mechanism of an automobile checking fixture, which comprises an A component 1 and a B component 2, wherein the A component 1 and the B component 2 can be quickly installed and disassembled, and further, the A component 1 comprises an upper connecting support 10 used for connecting the positioning mechanism and a thread positioning block 11 arranged on the upper connecting support 10; the component B2 comprises a lower connecting support 20 used for connecting a detection tool, an internal thread device 22 which is rotatably arranged in the lower connecting support 20 and is detachably connected with the thread positioning block 11, and a handle 23 used for rotating the internal thread device 22; different positioning mechanisms are installed on the upper connecting support 10, then the screw tooth positioning block 11 is matched with the internal thread device 22, so that the component A1 and the component B2 are locked, when other positioning mechanisms need to be replaced, only the handle 23 needs to be rotated, the component A1 and the component B2 can be separated, therefore, the quick exchange of different positioning mechanisms and different parts is realized, the locking and dismounting operations are simplified, and the processing efficiency is improved.
Specifically, as shown in fig. 3, the upper connecting support 10 and the thread positioning block 11 are detachably connected through a pin and a screw, the thread positioning block 11 is provided with a pin and a screw hole 111, and when the same component needs to be connected with different positioning mechanisms or needs to be replaced when the upper connecting support 10 is connected, only the upper connecting support 10 needs to be replaced.
In order to ensure the positioning accuracy, a fine positioning device is arranged on the upper connecting support 10 and the lower connecting support 20 arranged opposite to the upper connecting support, the fine positioning device comprises a positioning convex hull 30 and a positioning groove 31 which are in zero clearance fit, the positioning convex hull 30 and the positioning groove 31 are respectively arranged on the upper connecting support 10 and the lower connecting support 20, and if one or more positioning convex hulls 30 can be arranged on the upper connecting support 10, correspondingly, one or more positioning grooves 31 are arranged on the lower connecting support 20; or a positioning groove 31 is arranged on the upper connecting support 10, and a positioning convex hull 30 is arranged on the lower connecting support 20; in the invention, the accurate positioning of the component A1 and the component B2 can be ensured only by the accurate matching of the positioning convex hull 30 and the positioning groove 31, thereby reducing the positioning difficulty.
In one embodiment, the internal thread device 22 is arranged in the lower connecting support 20, in other embodiments, the lower connecting support 20 comprises a lower base 20-1 and a middle connecting support 21 arranged on the lower base 20-1, namely, the lower connecting support 20 is composed of two independent parts, the lower base 20-1 is used for connecting a gauge body, and the middle connecting support 21 is detachably connected to the other surface of the lower base 20-1 through screws or screws, so that the internal thread device 22 is arranged on the middle connecting support 21; when different checking tools need to be adapted, only the lower base 20-1 needs to be replaced without replacing the middle connecting support 21, and only one part needs to be replaced when one part is damaged without replacing the whole part, so that the cost is saved.
Furthermore, the fine positioning device is also arranged on the lower base 20-1 and the middle connecting support 21 to ensure the accurate positioning between the two, and to some extent, the accuracy of the whole quick-change device.
According to the invention, the handle 23 is used for rotating the internal thread device 22 so as to switch the quick-change device between the working state and the non-working state, the thread positioning block 11 is meshed with the internal thread device 22 in the working state, and the thread positioning block 11 is not meshed with the internal thread device 22 in the non-working state, so that the component A1 and the component B2 can be easily separated. How the thread positioning block 11 cooperates with the internal thread device 22 to lock and separate the component a and the component B will be described in detail below.
Referring to fig. 3, the thread positioning block 11 has an external thread 110, and specifically, a plurality of engaging units are disposed at intervals on an outer circumferential surface of the thread positioning block 11, the engaging units extend from top to bottom, the engaging units have an external thread, and an outer diameter of an outer wall between adjacent engaging units is smaller than an outer diameter of the external thread; the internal thread device 22 comprises a mounting through hole 220 for inserting the thread positioning block 11, a plurality of internal threads 221 matched with the external threads 110 are arranged on the inner wall of the mounting through hole 220 at intervals, and the diameter of the inner wall of the mounting through hole 220 between adjacent internal threads 221 is larger than the inner diameter of the internal threads 221; that is, when the external thread 110 is engaged with the internal thread 221 in an operating state, a certain interval is provided between adjacent external threads and adjacent internal threads, and when the external thread 110 is not engaged with the internal thread 221, the external thread 110 is staggered with respect to the internal thread 221, that is, the internal thread 110 corresponds to the inner wall between adjacent internal threads 221, and the internal thread 221 corresponds to the outer wall between adjacent external threads 110.
Referring to fig. 1 and 4, a rotary groove 210 is formed in the lower connecting support 20 or the middle connecting support 21, the internal thread device 22 is disposed in the rotary groove 210, and is rotated in the rotary groove 210 by the handle 23, so as to switch between an operating state and a non-operating state.
As shown in fig. 1, the rotary slot 210 is disposed on the upper surface of the middle connection support 21, further, the rotary slot 210 includes a first slot 210-1 and a second slot 210-2 disposed up and down, the cross sections of the first slot 210-1 and the second slot 210-2 are circular, and further, the diameter of the first slot 210-1 is smaller than that of the second slot 210-2.
Correspondingly, referring to fig. 4, the internal thread device 22 includes a first body 22-1 and a second body 22-2 which are arranged up and down, the first body 22-1 is cylindrical, the second body 22-2 is a regular polygonal cylinder, that is, the second body 22-2 has a plurality of edges and sides, and a plurality of sides are respectively provided with a mounting threaded hole 222 for connecting the handle 23, and one end of the handle 23 is screwed into the mounting threaded hole 222. Further, an adjusting through groove 211 is formed in one side of the lower connecting support 20 or the middle connecting support 21, as shown in fig. 5, the adjusting through groove 211 is formed in an edge of an upper surface of the middle connecting support 21 and is communicated with the rotating groove body 210, the handle 23 is inserted into the mounting threaded hole 222 from the outside of the middle connecting support 21 through the adjusting through groove 211, such that one end of the handle is connected to the second body 22-2 of the internal thread device 22, and the other end of the handle extends outside the middle connecting support 21 for being grasped by a person.
In use, the female threaded device 22 is disposed in the rotary slot 210, specifically, the first body 22-1 is disposed in the first slot 220-1, the second body 22-2 is disposed in the second slot 220-2, the first slot 210-1 is located below and the second slot 210-2 is located above; the first body 22-1 is formed in a cylindrical shape to allow the female screw device 22 to smoothly rotate in the rotary groove body and prevent the occurrence of misalignment and rotation, and the second body 22-2 is formed in a polygonal cylinder to increase a "pause" feeling of rotation, that is, to complete the switching between the working state and the non-working state once every pause or a fixed number of times when the female screw device 22 is rotated, thereby enhancing the operational feeling.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. The quick-change device of the positioning mechanism of the automobile checking fixture is characterized by comprising an assembly A and an assembly B, wherein the assembly A comprises an upper connecting support used for connecting the positioning mechanism and a thread positioning block arranged on the upper connecting support; the component B comprises a lower connecting support used for connecting a checking fixture, an internal thread device which is rotatably arranged in the lower connecting support and is detachably connected with the thread positioning block, and a handle used for rotating the internal thread device; the thread positioning block comprises a plurality of meshing units arranged at intervals, and the meshing units are provided with external threads; the internal thread device comprises an installation through hole, a plurality of internal threads matched with the external threads are arranged on the inner wall of the installation through hole at intervals, and the diameter of the inner wall of the installation through hole between every two adjacent internal threads is larger than the inner diameter of the internal threads; the quick-change device is in working and non-working states through the handle, the internal thread is meshed with the external thread in the working state, and the internal thread and the external thread are arranged in a staggered mode in the non-working state.
2. The quick-change device of the positioning mechanism of the automotive checking fixture according to claim 1, further comprising a fine positioning device, wherein the fine positioning device comprises a positioning convex hull and a positioning groove which are in zero clearance fit, and the positioning convex hull and the positioning groove are respectively arranged on the upper connecting support and the lower connecting support.
3. The quick-change device for the positioning mechanism of the automotive checking fixture according to claim 2, wherein the lower connecting support comprises a lower base and a middle connecting support arranged on the lower base, and the internal thread device is rotatably arranged in the middle connecting support.
4. The quick-change device of the positioning mechanism of the automotive checking fixture according to claim 3, wherein the positioning convex hull and the positioning groove are respectively arranged on the middle connecting support and the lower base.
5. The quick-change device for the positioning mechanism of the automotive checking fixture according to claim 4, wherein the middle connecting support is detachably connected with the lower base through a pin or a screw.
6. The quick-change device of the positioning mechanism of the automobile checking fixture according to any one of claims 1 to 5, wherein a rotary groove body is formed in one surface, facing the upper connecting support, of the lower connecting support, and the internal thread device is arranged in the rotary groove body; an adjusting through groove is formed in one side of the lower connecting support, the adjusting through groove is communicated with the rotating groove body, the handle is arranged in the adjusting through groove, one end of the handle is connected with the internal thread device, and the other end of the handle extends to the outer side of the lower connecting support.
7. The quick-change device for the positioning mechanism of the automotive checking fixture according to claim 6, wherein the internal thread device comprises a first body and a second body which are vertically arranged, the first body is cylindrical, the second body is a regular polygonal cylinder, a plurality of side surfaces of the second body are provided with mounting threaded holes, and one end of the handle is screwed in the mounting threaded holes.
8. The quick-change device of the positioning mechanism of the automobile checking fixture according to claim 7, wherein the rotating groove body comprises a first groove body and a second groove body which are vertically arranged; the cross sections of the first tank body and the second tank body are circular, and the diameter of the first tank body is smaller than that of the second tank body; the first body is disposed within the first channel and the second body is disposed within the second channel.
9. The quick-change device of the positioning mechanism of the automotive checking fixture according to claim 1, wherein the upper connecting support and the thread positioning block are integrally arranged or detachably connected through a pin and a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110517629.3A CN113109058A (en) | 2021-05-12 | 2021-05-12 | Quick change device of automobile checking fixture positioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110517629.3A CN113109058A (en) | 2021-05-12 | 2021-05-12 | Quick change device of automobile checking fixture positioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113109058A true CN113109058A (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110517629.3A Pending CN113109058A (en) | 2021-05-12 | 2021-05-12 | Quick change device of automobile checking fixture positioning mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN113109058A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116276731A (en) * | 2023-03-28 | 2023-06-23 | 武汉延领精密机械制造有限公司 | Quick-dismantling mechanism |
-
2021
- 2021-05-12 CN CN202110517629.3A patent/CN113109058A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116276731A (en) * | 2023-03-28 | 2023-06-23 | 武汉延领精密机械制造有限公司 | Quick-dismantling mechanism |
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