Adjustable fixing structure and clamp

Abstract

The utility model discloses an adjustable fixing structure which comprises a fixed seat, a movable seat is movably arranged in the fixed seat, and a through hole is formed in the movable seat in an up-down penetrating mode. The lower end of the through hole of the movable seat is connected with an adjusting screw rod through threads, an adjusting hole is formed in the adjusting screw rod, a limiting groove is formed in the position, connected with the fixed seat, of the movable seat in the vertical direction, a limiting bolt is arranged on the fixed seat, and the end of the limiting bolt is located in the limiting groove. The utility model further provides a clamp comprising the adjustable fixing structure, through the arrangement of the adjustable movable seat, when a hub to be machined is fixed, the height of the movable seat can be adjusted according to the size and the length of the hub connecting position, and therefore the universality of the fixing structure is improved, and the machining efficiency is improved. And meanwhile, the hub assembling precision and the production changing efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining, and in particular relates to an adjustable fixing structure and a clamp, which are used for clamping and fixing a wheel hub. Background Art

[0002] When machining motorcycle wheels, they are typically fixed to machining equipment and secured with a fixture. However, the increasingly complex shapes and structures of aluminum alloy motorcycle wheels place increasingly diverse demands on machining equipment and positioning fixtures. Existing fixtures, due to the varying specifications of products and the limited versatility of the fixtures, require fixed structures of varying lengths depending on the product size, significantly increasing processing costs.

[0003] In addition, due to the wide variety of products, the fixed structure needs to be replaced frequently, which will affect the production efficiency. Utility Model Content

[0004] In view of the above-mentioned shortcomings, the purpose of the present invention is to provide an adjustable fixing structure and clamp, which solves the problem that the fixing structure in the prior art is a dedicated structure, cannot be adjusted, and has poor versatility.

[0005] In order to achieve the above purpose, the technical solution provided by the present utility model is:

[0006] An adjustable fixing structure includes a fixed seat, a movable seat movably installed in the fixed seat, and through holes are opened up and down in the movable seat. The lower end of the through hole of the movable seat is connected to an adjusting screw by a thread, and an adjusting hole is opened on the adjusting screw. The movable seat and the fixed seat are connected in a vertical direction to form a limiting groove. The fixed seat is provided with a limiting bolt, and the end of the limiting bolt is located in the limiting groove.

[0007] With the above-mentioned structural design, when fixing the wheel hub to be processed, the height of the movable seat used for fixed connection with the wheel hub can be adjusted according to the size and length of the wheel hub connection. The adjusting screw is rotated by the hexagonal tool. After the adjusting screw is rotated, the movable seat is driven to move upward under the action of the limit bolt and adjusted to the required height. Therefore, the versatility of the fixing structure is improved.

[0008] Preferably, the connection between the fixed seat and the movable seat is provided with a lubrication groove on the fixed seat, and a sealing ring is provided at the end connection.

[0009] The above structural design can ensure the smoothness of the movable seat when adjusting up and down. At the same time, a sealing ring is set at the end to prevent external waste or dust from entering the interior and affecting the flexibility of the movable seat adjustment, thereby improving the service life of the fixed structure.

[0010] Preferably, a tail cover is provided at the lower end of the fixing seat, and the lower end of the adjusting screw is mounted on the tail cover.

[0011] Preferably, a graphite copper sleeve is embedded in the through hole at the upper end of the movable seat, a fixed core shaft is fixedly installed in the graphite copper sleeve to connect and fix the hub, and a gasket is also provided on the fixed core shaft to support the hub.

[0012] With the above structural design, the graphite copper sleeve can be replaced individually when it is damaged after long-term use, without the need for overall replacement, thus reducing processing costs.

[0013] Preferably, a plurality of fixing springs are evenly arranged on the upper end of the fixing seat, and a fixing nut is also provided on the fixing seat.

[0014] With the above structural design, after the movable seat is adjusted, the fixing nut provided on the upper end of the fixed seat pushes the fixed spring piece inward to contact the movable seat and achieve fixation.

[0015] The utility model also provides a clamp for clamping and fixing the wheel hub, including the adjustable fixing structure, and is characterized in that it also includes a clamp seat and a movable clamping mechanism installed on the clamp seat, the adjustable fixing structure is fixedly installed in the middle of the clamp seat, the middle of the wheel hub to be processed is clamped on the movable seat, and the edge of the wheel hub is clamped and fixed by the clamping mechanism.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model provides an adjustable movable seat. When the wheel hub to be processed is fixed, the height of the movable seat can be adjusted according to the size and length of the wheel hub connection. The adjusting screw is rotated by the hexagonal tool. After the adjusting screw is rotated, the movable seat is driven to move upward under the action of the limit bolt and adjusted to the required height. Therefore, the versatility of the fixing structure is improved, and the assembly accuracy with the wheel hub and the production change efficiency are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a three-dimensional diagram of the adjustable fixing structure of the utility model;

[0020] Figure 2 yes Figure 1 Exploded view of

[0021] Figure 3 yes Figure 1 sectional view of

[0022] Figure 4 This is a schematic diagram of the structure of the adjustable fixing structure of the fixture of the utility model;

[0023] Figure 5 yes Figure 4 sectional view of .

[0024] In the picture:

[0025] Fixed seat 1, lubrication groove 1a, fixed spring piece 1b, fixed nut 1c, movable seat 2, through hole 2a, limit groove 2b, adjusting screw 3, adjusting hole 3a, limit bolt 4, sealing ring 5, tail cover 6, graphite copper sleeve 7, fixed core shaft 8, gasket 9, clamp seat 100, clamping mechanism 110, wheel hub 200, adjustable fixing structure 300. DETAILED DESCRIPTION

[0026] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the embodiments and the accompanying drawings.

[0027] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] See also Figures 1 to 5An adjustable fixing structure includes a fixed base 1, in which a movable base 2 is movably installed. The movable base 2 is provided with a through hole 2a extending from top to bottom. The lower end of the through hole 2a of the movable base 2 is threadedly connected to an adjusting screw 3, and the adjusting screw 3 is provided with an adjusting hole 3a. The movable base 2 is connected to the fixed base 1 in a vertical direction and a limiting groove 2b is provided. The fixed base 1 is provided with a limiting bolt 4, and the end of the limiting bolt 4 is located in the limiting groove 2b. The movable base 2 is used to be assembled with the wheel hub 200 to be processed. When the height of the movable base 2 is adjusted according to the size of the wheel hub 200, the height is adjusted by rotating the adjusting screw 3. According to the design principle of the threaded screw, the movable base 2 has strong stability. After adopting the adjustable mode, the versatility of the fixing structure can be improved. A number of fixing springs 1b are evenly provided on the upper end of the fixed base 1, and a fixing nut 1c is also provided on the fixed base 1 for locking and fixing the adjusted movable base 2.

[0029] Please continue reading Figure 3 The connection between the fixed seat 1 and the movable seat 2 is located at a location where a lubrication groove 1a is provided on the fixed seat 1, and a sealing ring 5 is provided at the end connection to prevent waste chips and dust from entering during processing and affecting the smooth sliding of the movable seat 2. A tail cover 6 is provided at the lower end of the fixed seat 1, and the lower end of the adjusting screw 3 is mounted on the tail cover 6. A sealing ring 5 is provided at the connection between the adjusting screw 3 and the tail cover 6 to isolate the adjustment screw 3 from the outside.

[0030] Furthermore, a graphite copper sleeve 7 is embedded in the upper through hole 2a of the movable seat 2, and a fixed core shaft 8 is fixedly installed in the graphite copper sleeve 7 to connect and fix the wheel hub 200. A gasket 9 is also provided on the fixed core shaft 8 to support the wheel hub 200, which can also play a buffering role when installing the wheel hub 200.

[0031] Please continue reading Figure 4 and Figure 5 The utility model also provides a clamp for clamping and fixing the wheel hub 200, including the adjustable fixing structure 300. At the same time, the clamp also includes a clamp seat 100 and a movable clamping mechanism 110 installed on the clamp seat 100. The adjustable fixing structure is fixedly installed in the middle of the clamp seat 100, the middle of the wheel hub 200 to be processed is clamped on the movable seat 2, and the edge of the wheel hub 200 is clamped and fixed by the clamping mechanism 110.

[0032] The working principle of this utility model is as follows:

[0033] The fixture is fixedly mounted on the machining equipment. When the fixture is needed to clamp and fix the wheel hub 200, first, the fixed structure is installed in the middle of the fixture base 100. Then, the height of the movable seat 2 of the fixed structure is adjusted according to the size and length of the wheel hub 200 to be processed. The specific adjustment method is: remove the fixed core shaft 8, insert the hexagonal tool from the through hole 2a into the adjustment hole 3a of the adjustment screw 3, and rotate the adjustment screw 3. Since the adjustment screw 3 and the movable seat 2 are connected by a thread, and the movable seat 2 is provided with a limit slot 2b, and the fixed seat 1 is provided with a limit bolt 4 that cooperates with the limit slot 2b, when the adjustment screw 3 is rotated, the movable seat 2 can only move up and down along the adjustment screw 3. Therefore, the adjustment screw 3 and the movable seat 2 are adjusted up and down using the screw principle. Since the fixed structure adopts an adjustable structure, it can be applied to the processing of wheel hubs of different sizes and heights, thereby improving the versatility of the structure. After the fixing structure is adjusted, the centering shaft 8 is installed back, and then the wheel hub 200 is fixed on the centering shaft 8, and the wheel hub 200 is clamped and fixed by the clamping mechanism 110, and then the wheel hub is processed by machining equipment.

[0034] Based on the disclosures and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation to the present invention. Other devices that are identical or similar to the above devices are also within the scope of protection of the present invention.

Claims

1. An adjustable fixing structure, characterized in that: The invention comprises a fixed seat (1), a movable seat (2) is movably mounted in the fixed seat (1), a through hole (2a) is provided through the movable seat (2) from top to bottom, an adjusting screw (3) is connected to the lower end of the through hole (2a) of the movable seat (2) via a thread, an adjusting hole (3a) is provided on the adjusting screw (3), a limiting groove (2b) is provided in the vertical direction when the movable seat (2) is connected to the fixed seat (1), a limiting bolt (4) is provided on the fixed seat (1), and the end of the limiting bolt (4) is located in the limiting groove (2b).

2. The adjustable fixing structure according to claim 1, wherein: The connection between the fixed seat (1) and the movable seat (2) is located in a position where a lubrication groove (1a) is provided on the fixed seat (1), and a sealing ring (5) is provided at the end connection.

3. The adjustable fixing structure according to claim 1, wherein: The lower end of the fixing seat (1) is provided with a tail cover (6), and the lower end of the adjusting screw (3) is mounted on the tail cover (6).

4. The adjustable fixing structure according to claim 1, wherein: A graphite copper sleeve (7) is embedded in the through hole (2a) at the upper end of the movable seat (2). A fixed core shaft (8) is fixedly installed in the graphite copper sleeve (7) to connect and fix the wheel hub (200). A gasket (9) is also provided on the fixed core shaft (8) to support the wheel hub (200).

5. The adjustable fixing structure according to claim 1, wherein: A plurality of fixing springs (1b) are evenly arranged on the upper end of the fixing seat (1), and a fixing nut (1c) is also provided on the fixing seat (1).

6. A clamp for clamping and fixing a wheel hub, comprising the adjustable fixing structure according to any one of claims 1 to 5, characterized in that: It also includes a clamp seat (100) and a movable clamping mechanism (110) installed on the clamp seat (100), wherein the adjustable fixing structure is fixedly installed in the middle of the clamp seat (100), the middle of the wheel hub (200) to be processed is clamped on the movable seat (2), and the edge of the wheel hub (200) is clamped and fixed in and out by the clamping mechanism (110).

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