Quick clamp suitable for small structural part

Abstract

The utility model relates to a quick fixture suitable for small structural parts, which belongs to the technical field of fixtures, and comprises a base and a connecting shell at the lower end of the base, three groups of inner and outer fixtures are uniformly arranged on the base, each of the three groups of inner and outer fixtures comprises a connecting block fixedly connected with the base, and a movable arm is hinged to the connecting block. A linkage rod is hinged to the inner side of the movable arm, a guide rod in sliding connection is installed on the base, one end of the linkage rod is hinged to the guide rod, an adjusting spring is installed on the outer side of the movable arm, an abutting plate is installed at the other end of the adjusting spring, and clamping protrusions are oppositely installed at the end, away from the abutting plate, of the movable arm. According to the clamping device, the inner clamp and the outer clamp are adjusted to clamp outwards or inwards through the adjusting device, various structural parts can be clamped, and parts can be aligned and positioned through three fixing points of the inner clamp and the outer clamp which are clamped in three groups.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, specifically to a quick clamping device suitable for small structural components. Background Technology

[0002] When clamping parts, precise positioning is required. For example, a quick clamping device suitable for small structural parts, as described in application number CN201920307865.0, includes a prismatic base and a prismatic mounting groove on the upper surface of the base for mounting parts. The base is equipped with a clamping mechanism for holding the parts. The advantages of this invention are: it utilizes the sides and bottom of the prismatic mounting groove to quickly align and position parts; the mounting groove can be reused multiple times, reducing production costs; and its positioning accuracy is consistently maintained, which helps ensure uniform and stable processing quality of parts during mass production.

[0003] While the aforementioned patents help maintain uniform and stable processing quality of parts, they are only compatible with clamping one type of structural component and cannot be used for clamping multiple structural components, thus increasing production costs. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problems by providing a quick clamp suitable for small structural components.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] A quick clamp suitable for small structural components includes a base and a connecting shell at the lower end of the base, wherein three sets of inner and outer clamps are evenly arranged on the base;

[0007] All three sets of inner and outer clamps include a connecting block with a fixed connecting base, a movable arm hinged to the connecting block, a connecting rod hinged to the inner side of the movable arm, a slidingly connected guide rod installed on the base, one end of the connecting rod hinged to the guide rod, an adjusting spring installed on the outer side of the movable arm, a stop plate installed on the other end of the adjusting spring, and a clamping protrusion installed opposite to the end of the movable arm away from the stop plate.

[0008] An adjustment device for moving the guide rod is installed at the lower end of the guide rod.

[0009] Preferably, a limiting groove is provided on the outer side of the movable arm, and the adjusting spring is installed in the limiting groove.

[0010] Preferably, the end of the stop plate furthest from the adjusting spring has an arc-shaped structure.

[0011] Preferably, the base has a sliding hole for sliding with the guide rod.

[0012] Preferably, a buffer pad is installed at the upper end of the guide rod.

[0013] Preferably, the adjusting device includes a fixing block at the lower end of the guide rod, a return spring is installed on the outside of the guide rod and between the fixing block and the base, a movable ball is movably connected to the lower end of the fixing block, and a stepping bolt is installed at the lower end of the movable ball.

[0014] Preferably, the lower end of the connecting shell has a threaded hole for use with a stepping bolt.

[0015] Preferably, the lower end of the fixed block has a movable groove that cooperates with the movement of the movable ball.

[0016] With the above structure, this utility model has the following advantages:

[0017] This utility model uses an adjustment device to adjust the inner and outer clamps to clamp outwards or inwards, which can clamp various structural parts. Furthermore, the three fixed points of the three sets of clamping inner and outer clamps can be used to align and position the parts.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a connection diagram of the adjustment device of this utility model;

[0022] Figure 3 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0023] Figure 4 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0024] As shown in the figure: 1. Base; 2. Connecting shell; 3. Inner and outer clamps; 301. Connecting block; 302. Movable arm; 303. Linkage rod; 304. Adjusting spring; 305. Clamping protrusion; 306. Support plate; 4. Guide rod; 5. Adjusting device; 501. Fixing block; 502. Return spring; 503. Movable ball; 504. Stepping bolt; 6. Limiting groove; 7. Sliding hole; 8. Buffer pad. Detailed Implementation

[0025] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] The present invention will now be described in further detail in conjunction with the full text.

[0028] Combined with appendix Figures 1-4 A quick clamp suitable for small structural parts includes a base 1 and a connecting shell 2 at the lower end of the base 1. Three sets of inner and outer clamps 3 are evenly arranged on the base 1. This device clamps the structural parts by means of the three sets of inner and outer clamps 3. The reason for setting three sets is that for circular structural parts, the three clamping points can be fixed to the three points to align and position the parts.

[0029] In specific implementation of this utility model, such as Figure 1 and Figure 2As shown, all three sets of inner and outer clamps 3 include a connecting block 301 that is fixedly connected to the base 1. A movable arm 302 is hinged to the connecting block 301. A connecting rod 303 is hinged to the inner side of the movable arm 302. A guide rod 4 is slidably connected to the base 1. The other end of the connecting rod 303 is hinged to the guide rod 4. An adjusting spring 304 is installed on the outer side of the movable arm 302. A stop plate 306 is installed on the other end of the adjusting spring 304. A clamping protrusion 305 is installed opposite to the end of the movable arm 302 away from the stop plate 306. A sliding hole 7 is opened on the base 1 to slide with the guide rod 4. A buffer pad 8 is installed on the upper end of the guide rod 4. Specifically, the guide rod 4 moves up and down under the action of external force. Through the hinged connecting rod 303, the movable arm 302 is driven to rotate on the connecting block 301, thereby clamping the structural component inward or outward.

[0030] A limiting groove 6 is provided on the outer side of the movable arm 302, and an adjusting spring 304 is installed in the limiting groove 6. At least two sets of adjusting springs 304 are provided. Specifically, when the abutment plate 306 is compressed, it can compress the adjusting spring 304 in the limiting groove 6. The limiting groove 6 can limit the position of the abutment plate 306. The end of the abutment plate 306 away from the adjusting spring 304 has an arc-shaped structure, which can better fit the inner wall of the circular tube structure.

[0031] In specific implementation of this utility model, such as Figure 1 and Figure 2 As shown, an adjustment device 5 for moving the guide rod 4 is installed at the lower end of the guide rod 4. The adjustment device 5 includes a fixing block 501 at the lower end of the guide rod 4, a return spring 502 installed on the outer side of the guide rod 4 between the fixing block 501 and the base 1, a movable ball 503 is movably connected to the lower end of the fixing block 501, a stepping bolt 504 is installed at the lower end of the movable ball 503, a threaded hole for the stepping bolt 504 is opened at the lower end of the connecting shell 2, and a movable groove for the movable ball 503 is opened at the lower end of the fixing block 501. The stepping bolt 504 rotates in the threaded hole, causing the movable ball 503 to rotate and move in the movable groove. The guide rod 4 is pushed up or down by the fixing block 501, the return spring 502 provides tension, and the self-locking is completed by the locking force of the stepping bolt 504 and the threaded hole without external force rotating the stepping bolt 504.

[0032] Example 1:

[0033] like Figure 3As shown, the structural component is a multi-section stepped cylindrical structure. First, the stepping bolt 504 rotates in the threaded hole, causing the movable ball 503 to rotate and move in the movable groove. This pushes the guide rod 4 upward through the fixed block 501. Under the action of external force, the guide rod 4 moves upward and, through the hinged connecting rod 303, causes the movable arm 302 to rotate at an angle on the connecting block 301, thereby opening the positions of the three movable arms 302. The structural component is placed on the buffer pad 8. Then, the stepping bolt 504 rotates in the opposite direction in the threaded hole, causing the movable ball 503 to rotate and move in the movable groove. This pushes the guide rod 4 downward through the fixed block 501. Under the action of external force, the guide rod 4 moves downward and, through the hinged connecting rod 303, causes the movable arm 302 to rotate at an angle on the connecting block 301, thus clamping the structural component.

[0034] Example 2:

[0035] like Figure 4 As shown, the structural component is a multi-section circular tube structure. First, the stepping bolt 504 rotates in the threaded hole, causing the movable ball 503 to rotate and move in the movable groove. This pushes the guide rod 4 upward through the fixing block 501. Under the action of external force, the guide rod 4 moves downward. Through the hinged connecting rod 303, it drives the movable arm 302 to rotate an angle on the connecting block 301, thereby bringing the three movable arms 302 closer together. The structural component is fitted on the outside of the three movable arms 302. Then, the stepping bolt 504 rotates in the opposite direction in the threaded hole, causing the movable ball 503 to rotate and move in the movable groove. This pushes the guide rod 4 upward through the fixing block 501. Under the action of external force, the guide rod 4 moves upward. Through the hinged connecting rod 303, it drives the movable arm 302 to rotate an angle on the connecting block 301. The abutment plate 306 abuts against the inner wall of the structural component, clamping the structural component.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown throughout the text are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A quick clamp suitable for small structural components, characterized in that, Includes a base (1) and a connecting shell (2) at the lower end of the base (1), and three sets of inner and outer clamps (3) are evenly arranged on the base (1); All three sets of inner and outer clamps (3) include a connecting block (301) for fixing the base (1), a movable arm (302) is hinged on the connecting block (301), a connecting rod (303) is hinged on the inner side of the movable arm (302), a sliding guide rod (4) is installed on the base (1), one end of the connecting rod (303) is hinged to the guide rod (4), an adjusting spring (304) is installed on the outer side of the movable arm (302), a stop plate (306) is installed on the other end of the adjusting spring (304), and a clamping protrusion (305) is installed opposite to the end of the movable arm (302) away from the stop plate (306). An adjustment device (5) for pushing the guide rod (4) to move is installed at the lower end of the guide rod (4).

2. The quick clamping fixture suitable for small structural components according to claim 1, characterized in that: A limiting groove (6) is provided on the outer side of the movable arm (302), and the adjusting spring (304) is installed in the limiting groove (6).

3. The quick clamping fixture suitable for small structural components according to claim 1, characterized in that: The end of the abutment (306) away from the adjusting spring (304) has an arc-shaped structure.

4. The quick clamping fixture suitable for small structural components according to claim 1, characterized in that: The base (1) has a sliding hole (7) for sliding with the guide rod (4).

5. A quick clamping device suitable for small structural components according to claim 1, characterized in that: A buffer pad (8) is installed at the upper end of the guide rod (4).

6. A quick clamping device suitable for small structural components according to claim 1, characterized in that: The adjustment device (5) includes a fixing block (501) at the lower end of the guide rod (4), a return spring (502) is installed on the outside of the guide rod (4) and between the fixing block (501) and the base (1), a movable ball (503) is movably connected to the lower end of the fixing block (501), and a stepping bolt (504) is installed at the lower end of the movable ball (503).

7. A quick clamping device suitable for small structural components according to claim 6, characterized in that: The lower end of the connecting shell (2) is provided with a threaded hole for use with the stepping bolt (504).

8. A quick clamping device suitable for small structural components according to claim 7, characterized in that: The lower end of the fixed block (501) is provided with a movable groove that allows the movable ball (503) to move.

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