Fixture rapid switching and positioning tool

Abstract

The utility model belongs to the technical field of automobile production equipment, and discloses a fixture quick switching and positioning tool which comprises a fixed base, two supporting mechanisms arranged at intervals in the X-axis direction are installed on the top of the fixed base, and a fixture installation platform is jointly placed on the two supporting mechanisms. The clamp mounting platform and the fixed base are positioned and mounted together through a positioning piece, a vehicle type detection mechanism is arranged between the two supporting mechanisms, and the vehicle type detection mechanism is mounted on the fixed base; the quick switching device is suitable for quick switching of different clamp mounting platforms, and is simple in structure, low in manufacturing and maintenance cost and durable in use.

Description

Technical Field

[0001] This utility model relates to the field of automobile production equipment technology, and in particular to a quick-change positioning fixture. Background Technology

[0002] In the process of automobile manufacturing, different positioning fixtures need to be designed according to different car models and different lengths of car parts in the same model. However, with the rapid development of the automotive industry, the investment cost of a single model production line is constantly increasing, and more and more car companies need to build flexible production lines that can meet the needs of multiple models of fixtures for common production.

[0003] Although some equipment currently meets the needs of flexible production of positioning fixtures, such positioning equipment mostly uses cylinder lifting positioning, which has a complex structure, high manufacturing cost, and is difficult and costly to maintain. Moreover, it cannot quickly and conveniently switch the position of the positioning fixture as needed. Utility Model Content

[0004] The main technical problem to be solved by this utility model is to provide a quick-change positioning fixture suitable for different fixture installation platforms, which is simple in structure, low in manufacturing and maintenance costs, and durable.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A quick-change positioning fixture includes a fixed base. Two support mechanisms spaced apart along the X-axis are mounted on the top of the fixed base. A fixture mounting platform is placed on both support mechanisms. The fixture mounting platform is positioned and installed together with the fixed base by a positioning component. A vehicle model detection mechanism is arranged between the two support mechanisms and is mounted on the fixed base.

[0007] The following are further optimizations of the above technical solution by this utility model:

[0008] The top of the fixed base is provided with two top plates spaced apart along the X-axis, and the top plates extend along the Y-axis. Each top plate is provided with a support mechanism on its top, and the vehicle model detection mechanism is located between the two top plates.

[0009] Further optimization: The vehicle model detection mechanism includes several vehicle model detection elements arranged sequentially along the X-axis. Each vehicle model detection element is slidably mounted on a fixed base along the X-axis. A pair of proximity switch trigger plates are provided on the rear side of the vehicle model detection element. The proximity switch trigger plates are detached and installed on the fixture mounting platform.

[0010] Further optimization: The positioning component includes a positioning pin extending along the Z-axis direction, a fixed end bushing fixedly installed at the rear end of the top plate, a clamp end bushing fixedly installed on the clamp mounting platform, the clamp end bushing and the fixed end bushing being adapted to each other, and the positioning pin being inserted into the fixed end bushing and the clamp end bushing.

[0011] Further optimization: A fixed stop is fixed at the top of each top plate near the front end, and two movable stops are fixed at the bottom of the fixture mounting platform. The positions of the movable stops are adapted to the positions of the fixed stops, and the rear wall of the fixed stop is in contact with the front wall of the movable stops.

[0012] Further optimization: Each of the top plates is provided with a guide rail on its outer side. The guide rail extends along the Y-axis and its upper end is fixed to the bottom of the fixture mounting platform.

[0013] Further optimization: The support mechanism includes several universal ball bearing wheels arranged at intervals along the Y-axis, and the bottom of the fixture mounting platform presses on the universal ball bearing wheels.

[0014] Further optimization: The lower end of the fixed base is provided with a foot plate, which is fixedly connected to the ground by a vehicle repair expansion bolt.

[0015] The present invention adopts the above technical solution and has the following beneficial effects:

[0016] 1. This utility model, through the cooperation between the support mechanism and the positioning component, not only enables rapid switching between different fixture mounting platforms, reducing preparation and adjustment time, but also ensures the installation and positioning accuracy of the fixture mounting platform through the precise cooperation between the bushing and the positioning pin, thus making this utility model suitable for production environments with high precision requirements.

[0017] 2. The fixture installation platform is easy and quick to replace and disassemble, and has high flexibility, which can adapt to various production needs and product specifications.

[0018] 3. Compared with traditional positioning fixtures, this utility model has a simple and compact structure, lower manufacturing and maintenance costs, and is easy to maintain, and is durable. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0021] Figure 2 This is a perspective view of the overall structure in an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the fixture mounting platform in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the fixed base in an embodiment of this utility model.

[0024] In the diagram: 1. Fixed base; 101. Top plate; 102. Foot plate; 103. Vehicle repair expansion bolt anchor; 2. Universal ball bearing wheel; 3. Fixture mounting platform; 4. Positioning component; 401. Positioning pin; 402. Fixed end bushing; 403. Fixture end bushing; 5. Vehicle model detection mechanism; 501. Vehicle model detection element; 502. Proximity switch trigger plate; 503. Mounting rail; 504. Mounting bracket; 6. Fixed stop; 7. Movable stop; 8. Guide rail. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] like Figures 1-4 As shown, a quick-change positioning fixture includes a fixed base 1. Two support mechanisms spaced apart along the X-axis are installed on the top of the fixed base 1. A fixture mounting platform 3 is placed on the two support mechanisms. The fixture mounting platform 3 is positioned and installed together with the fixed base 1 by a positioning element 4. A vehicle model detection mechanism 5 is arranged between the two support mechanisms and is installed on the fixed base 1.

[0028] like Figure 2 and Figure 4 As shown, the top of the fixed base 1 is provided with two top plates 101 spaced apart along the X-axis.

[0029] In this embodiment, the upper surface of the top plate 101 is finely machined to ensure the accuracy of the installation of the universal ball bearing wheel 2 and the consistency of the height of the highest point of the universal ball bearing wheel 2, thereby ensuring the installation accuracy of the fixture installation platform 3 in the Z-axis direction.

[0030] like Figure 4 As shown, the top plate 101 extends along the Y-axis, and a support mechanism is provided on the top of each top plate 101. The vehicle model detection mechanism 5 is located between two top plates 101.

[0031] like Figure 1 and Figure 4 As shown, the vehicle model detection mechanism 5 includes several vehicle model detection elements 501 arranged sequentially along the X-axis. Each vehicle model detection element 501 is slidably mounted on the fixed base 1 along the X-axis. A pair of proximity switch trigger plates 502 are provided on the rear side of the vehicle model detection element 501. The proximity switch trigger plates 502 are detached and mounted on the fixture mounting platform 3.

[0032] In this embodiment, the number of vehicle model detection elements 501 is preferably four.

[0033] In this embodiment, the front end of the fixed base 1 is fixed with an installation rail 503 extending along the X-axis. The installation rail 503 is slidably mounted with four installation brackets 504, and each installation bracket 504 is equipped with a vehicle model detection element 501.

[0034] The mounting bracket 504 is also provided with an elongated oval mounting groove, along which the position of the vehicle model detection element 501 in the Z-axis direction can be adjusted. This allows the vehicle model detection element 501 to be freely adjusted as needed, avoiding the phenomenon that the vehicle model detection element 501 and the proximity switch trigger plate 502 cannot be aligned due to machining errors.

[0035] In this embodiment, the vehicle model detection element 501 can be an inductive contact switch.

[0036] In this embodiment, four vehicle model detection elements 501 and two proximity switch trigger plates 502 are arranged in combination, which can not only realize the identification of the fixture mounting platform 3 of six vehicle models, but also provide two inductive proximity switch trigger signals for each vehicle model, thus avoiding system identification errors caused by damage to the inductive proximity switches.

[0037] In this embodiment, the entire positioning fixture has a simple and compact structure, is easy to operate, occupies a small area, saves space, and has very low manufacturing and maintenance costs, time and difficulty.

[0038] Example 2

[0039] This embodiment is basically the same as Embodiment 1, except that:

[0040] like Figures 1-4As shown, the positioning component 4 includes a positioning pin 401 extending along the Z-axis direction, and the lower end of the positioning pin 401 is designed with a 30° wedge angle, which plays a certain guiding role and ensures the operability of the positioning pin 401 insertion action.

[0041] Among them, a fixed end bushing 402 is fixedly installed at the rear end of the top plate 101, and a clamp end bushing 403 is fixedly installed on the clamp mounting platform 3. The clamp end bushing 403 is adapted to the fixed end bushing 402, and the positioning pin 401 is inserted into the fixed end bushing 402 and the clamp end bushing 403.

[0042] In this embodiment, both the clamp end bushing 403 and the fixed end bushing 402 are self-lubricating bushings.

[0043] In this embodiment, the fixed end bushing 402 is fixedly embedded in the top plate 101, and the clamp end bushing 403 is fixedly embedded in the clamp mounting platform 3.

[0044] In this embodiment, the fixed end bushing 402 and the clamp end bushing 403 not only provide precise guidance for the positioning pin 401, but also reduce the friction between the positioning pin 401 and the top plate 101, so that the positioning pin 401 can be inserted and pulled out more smoothly, thereby improving the positioning speed and positioning accuracy of the clamp mounting platform 3.

[0045] like Figure 2 As shown, a fixed stop block 6 is fixed at the top of each of the top plates 101 near the front end, and two movable stops block 7 are fixed at the bottom of the clamp mounting platform 3. The positions of the movable stops block 7 are adapted to the positions of the fixed stops block 6, and the rear wall of the fixed stops block 6 is in contact with the front wall of the movable stops block 7.

[0046] In this embodiment, the combined use of the fixed stop 6 and the movable stop 7 enables coarse positioning of the fixture mounting platform 3 in the Y-axis direction.

[0047] like Figure 3 As shown, each of the top plates 101 is provided with a guide rail 8 on its outer side. The guide rail 8 extends along the Y-axis and its upper end is fixed to the bottom of the fixture mounting platform 3.

[0048] In this embodiment, the two guide rails 8 slide in contact with the two sides of the top plate 101, thereby achieving coarse positioning of the fixture mounting platform 3 in the X-axis direction.

[0049] In this embodiment, the coarse positioning in the X and Y axes ensures that the two shaft holes of the clamp end bushing 403 and the fixed end bushing 402 on the clamp mounting platform 3 are basically aligned, which increases the accuracy of the positioning pin 401 when it is inserted into the clamp end bushing 403 and the fixed end bushing 402.

[0050] like Figure 2 and Figure 4 As shown, the support mechanism includes several universal ball bearing wheels 2 arranged at intervals along the Y-axis, and the bottom of the clamp mounting platform 3 presses on the universal ball bearing wheels 2.

[0051] In this embodiment, the universal ball bearing wheel 2 not only provides support and positioning for the fixture mounting platform 3 in the Z-axis direction, but also ensures the movement of the fixture mounting platform 3 in the X and Y-axis directions through rolling, greatly improving the flexibility of the fixture mounting platform 3 and ensuring the flexibility and operability when the positioning pin 401 is inserted into the fixed end bushing 402 and the fixture end bushing 403.

[0052] In this embodiment, the universal ball bearing wheel 2 enables the fixture mounting platform 3 to be quickly introduced into the production line. At the same time, the coordinated use of the guide rail 8, fixed stop 6, movable stop 7 and positioning component 4 enables the fixture mounting platform 3 to be quickly and accurately positioned, thereby effectively reducing the preparation time for the installation of the fixture mounting platform 3 and the time for adjusting the positioning.

[0053] It also enhances the positioning accuracy of the fixture mounting platform 3, making this invention suitable for production environments with high precision requirements.

[0054] Moreover, the structure of the clamp installation platform 3 in this utility model is the same, only the clamps installed on it are different. Therefore, it can flexibly adapt to the rapid installation of different clamps, which is highly flexible and can adapt to a variety of production needs and product specifications.

[0055] In addition, the lower end of the fixed base 1 is provided with a foot plate 102, which is fixedly connected to the ground by a vehicle repair expansion bolt anchor 103, thereby ensuring the consistency of the position of the clamp installation platform 3 each time it is pushed in.

[0056] The procedure for quickly changing the fixture mounting platform 3 using positioning tooling is as follows:

[0057] S1. Pull out the positioning pin 401 inserted into the fixed end bushing 402 upwards, and then push the fixture mounting platform 3 with the corresponding fixture installed from the rear end of the fixed base 1 to the top of the fixed base 1, and use the universal ball bearing wheel 2 to support the fixture mounting platform 3, thus determining the position of the fixture mounting platform 3 in the Z-axis direction.

[0058] S2. The fixture mounting platform 3 continues to slide on the universal ball bearing wheel 2 and performs coarse positioning in the X-axis direction through the guide rail 8 and the side of the top plate 101.

[0059] S3. After the fixture mounting platform 3 is pushed into place, the front wall of the movable block 7 contacts the rear wall of the fixed block 6, thus achieving coarse positioning of the fixture mounting platform 3 in the Y-axis direction.

[0060] S4. The position of the fixture mounting platform 3 is finely adjusted manually to ensure that the fixture end bushing 403 is aligned with the fixed end bushing 402. Then, the positioning pin 401 is inserted downward into the fixture end bushing 403 and the fixed end bushing 402, thereby achieving precise positioning of the fixture mounting platform 3 in the X and Y axis directions.

[0061] S5. The proximity switch trigger plate 502 on the fixture mounting platform 3 contacts the vehicle model detection element 501 on the fixed base 1, triggering the presence or absence of the inductive proximity switch. The vehicle model detection element 501 identifies the vehicle model information corresponding to the fixture (not shown in the figure) on the fixture mounting platform 3, and the import of the information on the fixture mounting platform 3 is completed.

[0062] In summary, this utility model can quickly switch the fixture mounting platform 3 according to production needs and achieve the positioning effect without the need for customized special tooling. This not only reduces the investment cost of production, but also improves the flexibility of the production line and greatly improves the production efficiency of the production line.

[0063] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture quick switching positioning tooling comprising a fixed base (1), characterized in that, The top of the fixed base (1) is provided with two support mechanisms arranged along the X-axis direction, and a clamp mounting platform (3) is arranged on the two support mechanisms.

2. The quick change positioning fixture of claim 1, wherein, The top of the fixed base (1) is provided with two top plates (101) arranged along the X-axis direction, and the top plates (101) extend along the Y-axis direction. The top of each top plate (101) is provided with a support mechanism, and the vehicle type detection mechanism (5) is arranged between the two top plates (101).

3. The quick change positioning fixture of claim 2, wherein, The vehicle type detection mechanism (5) comprises a plurality of vehicle type detection elements (501) arranged along the X-axis direction. Each vehicle type detection element (501) is slidably mounted on the fixed base (1) along the X-axis direction. The rear side of the vehicle type detection element (501) is provided with a pair of proximity switch trigger plates (502), which are detachably mounted on the clamp mounting platform (3).

4. The quick change positioning fixture of claim 2, wherein, The positioning member (4) comprises a positioning pin (401) extending along the Z-axis direction. The rear end of the top plate (101) is fixedly provided with a fixed end shaft sleeve (402), and the clamp mounting platform (3) is fixedly provided with a clamp end shaft sleeve (403). The clamp end shaft sleeve (403) is matched with the fixed end shaft sleeve (402), and the positioning pin (401) is inserted into the fixed end shaft sleeve (402) and the clamp end shaft sleeve (403).

5. The quick change positioning fixture of claim 2, wherein, The top of each top plate (101) is fixedly provided with a fixed stop block (6) near the front end. The bottom of the clamp mounting platform (3) is fixedly provided with two movable stop blocks (7), and the positions of the movable stop blocks (7) are matched with the positions of the fixed stop blocks (6). The rear wall of the fixed stop block (6) is in contact with the front wall of the movable stop block (7).

6. The quick change positioning fixture of claim 2, wherein, Each top plate (101) is provided with a guide rail (8) on the outer side. The guide rail (8) extends along the Y-axis direction, and the upper end of the guide rail (8) is fixed to the bottom of the clamp mounting platform (3).

7. The quick change positioning fixture of claim 5, wherein, The support mechanism comprises a plurality of universal ball bearing wheels (2) arranged along the Y-axis direction. The bottom of the clamp mounting platform (3) is pressed on the universal ball bearing wheels (2).

8. The quick change positioning fixture of claim 2, wherein, The lower end of the fixed base (1) is provided with a foot plate (102), and the foot plate (102) is fixedly connected with the ground through a vehicle repair expansion bolt (103).

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