Unlocking structure adaptive to different jig tolerances

Abstract

The utility model discloses an unlocking structure adapted to different jig tolerances, which comprises a positioning base plate, the lower part of the positioning base plate is connected with a bottom plate, the upper part of the positioning base plate is connected with a heightening table, the upper part of the heightening table is connected with a heightening plate through a bolt, the upper part of the heightening plate is provided with a sliding chute positioning block, and the sliding chute positioning block is provided with a sliding chute. A plurality of rounded rectangular holes are formed in the positioning base plate, a circular positioning groove is formed in the positioning base plate, and a locking device is mounted on the circular positioning groove. The height of the lifting column can be adjusted according to actual requirements, and the second sleeve in the elastic column and the short spring fixedly connected to the upper portion of the second sleeve provide additional buffering and elastic supporting. By means of the design, the adaptive capacity within the tolerance range is improved, and more importantly, when frequent opening and closing operation is carried out, impact force can be effectively absorbed, hard collision between mechanical parts is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of unlocking structure technology, and in particular relates to an unlocking structure that is adapted to different fixture tolerances. Background Technology

[0002] In the field of modern precision manufacturing, fixtures, as key tools to ensure product accuracy and quality, have seen significant development in design and application. Fixtures fix, position, and support workpieces, making operations more precise and efficient during processing. With the popularization of the Industry 4.0 concept and technological advancements, automated production lines are placing increasingly higher demands on fixtures. They not only need to meet traditional dimensional accuracy requirements but also possess the ability to quickly change and flexibly adapt to different product specifications to meet the market demand for multi-variety, small-batch production. Furthermore, to ensure production efficiency, the design of the unlocking structure has become a crucial element, directly impacting mold changeover speed and the overall efficiency of the production line.

[0003] However, existing unlocking structures for fixtures have many shortcomings. Traditional unlocking devices typically employ fixed mechanical connections, which makes them inadequate when dealing with fixtures with varying tolerances. Specifically, when there are subtle dimensional differences or cumulative tolerances between fixtures, these differences may not be effectively compensated for by traditional unlocking structures, thus affecting installation accuracy and stability. Therefore, we propose an unlocking structure that adapts to different fixture tolerances. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide an unlocking structure that is adaptable to different fixture tolerances. By having two lifting columns and an elastic column work together on the top, and the elastic column includes a second sleeve with a short spring fixedly connected to the upper part of the second sleeve, the tolerance range is improved, the unlocking structure can effectively compensate, and the stability of unlocking is guaranteed.

[0005] This utility model is implemented as follows: an unlocking structure adaptable to different fixture tolerances includes a positioning base plate, a base plate connected to the lower part of the positioning base plate, a lifting platform connected to the upper part of the positioning base plate, a lifting plate connected to the upper part of the lifting platform by bolts, a sliding groove positioning block installed on the upper part of the lifting plate, a plurality of rounded rectangular openings on the positioning base plate, a circular positioning groove on the positioning base plate, a locking device installed on the circular positioning groove, and a plurality of screw holes on the positioning base plate.

[0006] Optionally, the locking device includes a mounting plate with a positioning hole and a positioning pin inserted into the positioning hole.

[0007] Optionally, a first sleeve is fixedly connected to the upper part of the mounting plate, and two lifting columns are fitted inside the first sleeve. Terminals are fixedly connected to the upper part of the lifting columns.

[0008] Optionally, the upper part of the lifting column is engaged with an elastic column, the elastic column including a second sleeve, and a short spring is fixedly connected to the upper part of the second sleeve.

[0009] Optionally, the lifting column is fitted with an outer sleeve, which is disposed inside the first sleeve.

[0010] Optionally, the upper part of the elastic column is engaged with a top head, the outer side of the first sleeve is fitted with a first spring, and the upper part of the outer sleeve is engaged with an annular protective shell.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By combining two lifting columns with a flexible column, and having them work together on the top, this innovative structural design directly addresses the problem of existing technologies being unable to effectively accommodate subtle dimensional differences between fixtures. Specifically, when the unlocking structure needs to accommodate fixtures with different tolerance requirements, the lifting columns can adjust their height according to actual needs, while the second sleeve in the flexible column and its upper fixedly connected short spring provide additional cushioning and elastic support. This design not only improves adaptability within tolerance ranges, but more importantly, it effectively absorbs impact forces and reduces hard collisions between mechanical parts when facing frequent opening and closing operations, thereby extending the service life of the equipment. Furthermore, due to the presence of the flexible component, even under extreme conditions, such as when the fixture size exceeds the expected range, the structure can still maintain a relatively stable locked state, ensuring production continuity and safety.

[0013] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the positioning substrate provided by this utility model;

[0016] Figure 3 This is a schematic diagram of the locking device provided by this utility model;

[0017] Figure 4 This is an exploded schematic diagram of the locking device provided by this utility model;

[0018] Figure 5This is a schematic diagram of the lifting column and the elastic column provided by this utility model.

[0019] In the diagram: 1. Positioning base plate; 2. Base plate; 3. Rounded rectangular opening; 4. Raising platform; 5. Raising plate; 6. Slide positioning block; 7. Circular positioning groove; 8. Screw hole; 9. Locking device; 91. First spring; 92. Mounting plate; 93. Annular protective shell; 94. Lifting column; 941. Terminal; 95. Elastic column; 951. Second sleeve; 952. Short spring; 96. Top head; 97. First sleeve; 98. Positioning pin; 99. Outer sleeve. Detailed Implementation

[0020] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0021] like Figures 1 to 5 As shown in the figure, this utility model embodiment provides an unlocking structure that adapts to different fixture tolerances.

[0022] The system includes a positioning base plate 1, a base plate 2 connected to the lower part of the positioning base plate 1, a lifting platform 4 connected to the upper part of the positioning base plate 1, a lifting plate 5 connected to the upper part of the lifting platform 4 by bolts, a sliding positioning block 6 installed on the upper part of the lifting plate 5, several rounded rectangular openings 3 on the positioning base plate 1, a circular positioning groove 7 on the positioning base plate 1, a locking device 9 installed on the circular positioning groove 7, and several screw holes 8 on the positioning base plate 1.

[0023] The locking device 9 includes a mounting plate 92, on which a positioning hole is provided, and a positioning pin 98 is inserted into the positioning hole.

[0024] The upper part of the mounting plate 92 is fixedly connected to the first sleeve 97, and the inside of the first sleeve 97 is fitted with two lifting columns 94. The upper part of the lifting columns 94 is fixedly connected to the terminal 941.

[0025] The upper part of the lifting column 94 is engaged with an elastic column 95, which includes a second sleeve 951. A short spring 952 is fixedly connected to the upper part of the second sleeve 951.

[0026] The outer side of the lifting column 94 is fitted with an outer sleeve 99, which is located inside the first sleeve 97.

[0027] The upper part of the elastic column 95 is engaged with the top head 96, the outer side of the first sleeve 97 is fitted with the first spring 91, and the upper part of the outer sleeve 99 is engaged with the annular protective shell 93.

[0028] Working Principle: First, when installing or replacing the fixture, the operator places the fixture on the positioning base plate 1. The lower part of the positioning base plate 1 is connected to the base plate 2, ensuring the stability of the entire system; while the upper part, connected to the lifting platform 4 and the lifting plate 5 fixed with bolts, provides additional height adjustment space. Depending on the specific thickness of the fixture, the position of the lifting platform 4 and the lifting plate 5 can be adjusted to accommodate different fixture height requirements. A sliding positioning block 6 is installed on the upper part of the lifting plate 5 to assist in the precise positioning of the fixture, ensuring it can be accurately positioned during installation.

[0029] Next, the locking device 9 installed on the circular positioning groove 7 plays a crucial role. The locking device 9 includes a mounting plate 92 with positioning holes for inserting positioning pins 98 to fix the position of the fixture. A first sleeve 97 is fixedly connected to the upper part of the mounting plate 92, and two lifting columns 94 are fitted inside. Terminals 941 are fixedly connected to the tops of these two lifting columns 94 and engage with elastic columns 95. The elastic column 95 consists of a second sleeve 951 and a short spring 952, which provides necessary elastic support for the entire system. When the fixture is placed in position, the short spring 952 in the elastic column 95 will compress or extend appropriately according to the actual size of the fixture, thereby automatically compensating for minor dimensional differences between fixtures and ensuring optimal locking effect each time. Furthermore, the outer sleeve 99 fitted on the outside of the lifting column 94 is located inside the first sleeve 97, further optimizing the lifting action and ensuring smoothness and precision of movement.

[0030] Finally, to achieve secure locking and rapid release of the fixture, the top head 96 of the locking device 9 engages with the upper part of the elastic post 95 and is subjected to the force of the first spring 91. When an external force is applied to move the top head 96 downward, the first spring 91 is compressed, allowing the top head 96 to smoothly enter the corresponding hole on the fixture, completing the locking action. Once locking is complete, the first spring 91 returns to its original state, providing continuous pressure to the top head 96 to ensure the stability and reliability of the locked state. Conversely, when it is necessary to unlock, simply apply an external force again to move the top head 96 downward, and it can easily be removed from the fixture, completing the release action. The annular protective shell 93 is engaged with the upper part of the outer shell sleeve 99, which not only enhances the aesthetics of the overall structure but also protects the internal components.

[0031] 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. An unlocking structure adaptable to different fixture tolerances, comprising a positioning base plate (1), characterized in that: The lower part of the positioning base plate (1) is connected to a base plate (2), the upper part of the positioning base plate (1) is connected to a lifting platform (4), the upper part of the lifting platform (4) is connected to a lifting plate (5) by bolts, the upper part of the lifting plate (5) is equipped with a sliding positioning block (6), the positioning base plate (1) is provided with a number of rounded rectangular openings (3), the positioning base plate (1) is provided with a circular positioning groove (7), the circular positioning groove (7) is equipped with a locking device (9), and the positioning base plate (1) is provided with a number of screw holes (8).

2. The unlocking structure adaptable to different fixture tolerances according to claim 1, characterized in that: The locking device (9) includes a mounting plate (92), on which a positioning hole is provided, and a positioning pin (98) is inserted into the positioning hole.

3. The unlocking structure adaptable to different fixture tolerances according to claim 2, characterized in that: The upper part of the mounting plate (92) is fixedly connected to a first sleeve (97), and two lifting columns (94) are fitted inside the first sleeve (97). The upper part of the lifting columns (94) is fixedly connected to a terminal (941).

4. The unlocking structure adaptable to different fixture tolerances according to claim 3, characterized in that: The upper part of the lifting column (94) is engaged with an elastic column (95), the elastic column (95) includes a second sleeve (951), and a short spring (952) is fixedly connected to the upper part of the second sleeve (951).

5. The unlocking structure adaptable to different fixture tolerances according to claim 4, characterized in that: The outer side of the lifting column (94) is fitted with an outer sleeve (99), which is located inside the first sleeve (97).

6. The unlocking structure adaptable to different fixture tolerances according to claim 5, characterized in that: The upper part of the elastic column (95) is fitted with a top head (96), the outer side of the first sleeve (97) is fitted with a first spring (91), and the upper part of the outer sleeve (99) is fitted with an annular protective shell (93).

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