Clamping mechanism for nut machining

By using a servo motor-driven forward and reverse screw and gear rack mechanism, combined with a detachable clamping base, the problem of poor adaptability of existing nut processing clamping mechanisms is solved, achieving stable clamping of nuts of different shapes and sizes, and improving processing efficiency and practicality.

CN223734748UActive Publication Date: 2025-12-30四川鑫盟诺机械制造有限公司
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Patent Information

Application Number
CN202520684906.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2025-12-30
Estimated Expiration
2035-04-11

AI Technical Summary

Technical Problem

Existing nut processing clamping mechanisms are inconvenient to adjust and difficult to adapt to nuts of different shapes and sizes, resulting in limitations in their use.

Method used

The system employs a servo motor-driven forward and reverse screw and rack and pinion mechanism, combined with a detachable clamping base, to achieve stable clamping of nuts of different shapes and sizes.

Benefits of technology

It achieves stable clamping of nuts of different shapes and sizes, improves the practicality and efficiency of processing, and facilitates the replacement and maintenance of the clamping base.

✦ Generated by Eureka AI based on patent content.

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Abstract

The clamping mechanism for nut machining comprises an installation base, a supporting table is fixedly installed in the middle of the upper end of the installation base, a controller is fixedly installed in the middle of the front end of the installation base, and a sliding groove is formed in the upper end of the installation base. A second fixing seat and a first fixing seat are fixedly mounted at the left end and the right end of the mounting base correspondingly, a driving device is jointly mounted between the first fixing seat and the second fixing seat, and adjusting devices are mounted on the left portion and the right portion of the outer surface of the driving device in a threaded mode correspondingly; and clamping devices are fixedly mounted at the upper ends of the two adjusting devices. A second servo motor drives a second gear, the second gear further drives a first gear and a movable seat, and when the movable seat rotates in a movable groove, a clamping seat on the movable seat can rotate and adjust along with the movable seat, so that a clamping groove in the clamping seat is adjusted to correspond to nuts in different shapes, and the clamping effect is improved. And the device can clamp nuts in different shapes.
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Description

Technical Field

[0001] This utility model relates to the field of nut processing technology, and in particular to a clamping mechanism for nut processing. Background Technology

[0002] A nut is a mechanical fastener with internal threads, usually used in conjunction with a bolt or screw to transmit force or motion through thread engagement. It is widely used for connecting and fixing mechanical equipment. Depending on the material, it is divided into several types, such as carbon steel, stainless steel, and non-ferrous metals (such as copper). Common shapes include hexagonal nuts, square nuts, round nuts, and flange nuts.

[0003] When machining nuts, clamping and fixing are necessary to ensure stability and accuracy during the process. This prevents the nuts from deviating from their intended position due to vibration or movement, which is crucial for ensuring machining quality and improving machining efficiency. However, existing clamping mechanisms are inconvenient to adjust and can only clamp nuts of specific shapes. They are difficult to clamp nuts of different shapes well, which limits their use. Utility Model Content

[0004] The main purpose of this utility model is to provide a clamping mechanism for nut processing, which can effectively solve the problems of inconvenient adjustment of the clamping mechanism and difficulty in clamping nuts of different shapes.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A clamping mechanism for nut processing includes a mounting base, a support platform fixedly mounted on the upper middle part of the mounting base, a controller fixedly mounted on the front middle part of the mounting base, a sliding groove opened on the upper end of the mounting base, a second fixing seat and a first fixing seat fixedly mounted on the left and right ends of the mounting base respectively, a driving device being installed between the first fixing seat and the second fixing seat, and adjusting devices threadedly mounted on the left and right outer surfaces of the driving device, with clamping devices fixedly mounted on the upper ends of both adjusting devices.

[0007] Preferably, the driving device includes a first servo motor, with a forward and reverse screw fixedly mounted at its output end. Sliding seats are threaded onto both the forward and reverse threads of the forward and reverse screws. Each sliding seat has a movable groove and a mounting groove at its upper end. The forward and reverse screws are rotatably mounted on a second fixed base, and both sliding seats are slidably mounted within a sliding groove. The first servo motor is fixedly mounted on the first fixed base. The first servo motor drives the forward and reverse screws to rotate on the second fixed base. During this rotation, the two sliding seats on the forward and reverse screws slide closer to each other within the sliding groove. Simultaneously, the clamping seats on the two sliding seats also move closer to each other, thereby clamping and limiting the nut. Furthermore, the sliding adjustment of the two sliding seats allows for the adaptation to nuts of different sizes.

[0008] Preferably, the adjustment device includes a movable seat and a second servo motor. A first gear is fixedly mounted on the upper part of the outer surface of the movable seat. A screw hole is opened in the middle of the upper end of the movable seat. A second gear is fixedly mounted on the output end of the second servo motor. The second gear is meshed with the right end of the first gear. The movable seat is movably mounted in a movable slot, and the second servo motor is fixedly mounted in a mounting slot. The second servo motor drives the second gear, which in turn drives the first gear and the movable seat. When the movable seat rotates in the movable slot, the clamping seat on it also rotates and adjusts accordingly, thereby adjusting the clamping slot on the clamping seat to correspond to nuts of different shapes.

[0009] Preferably, the clamping device includes a clamping base, a fixing screw is installed on the upper end of the clamping base, and clamping grooves are formed at the front end, left end, rear end and right end of the clamping base. The movable base is fixedly installed on the upper end of the movable base by the fixing screw. The clamping base can be disassembled and replaced by loosening the fixing screw on the clamping base.

[0010] Preferably, the controller is electrically connected to both the first servo motor and the second servo motor.

[0011] Preferably, the four clamping slots are a circular slot, a polygonal slot, a rectangular slot, and a triangular slot.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. When the nut needs to be processed, first place the nut in the middle of the support platform. At this time, the first servo motor on the drive device drives the positive and negative screws to rotate on the second fixed seat. At this time, the two sliding seats on the positive and negative screws slide closer to each other in the slide groove. The clamping seats on the two sliding seats also move closer to each other, thereby limiting and clamping the nut. Moreover, the sliding adjustment of the two sliding seats can also be used to accommodate nuts of different sizes.

[0014] 2. When it is necessary to clamp nuts of different shapes, the second servo motor on the adjustment device drives the second gear, which in turn drives the first gear and the movable seat. When the movable seat rotates in the movable slot, the clamping seat on it will also rotate and adjust accordingly, thereby adjusting the clamping slot on the clamping seat to correspond to nuts of different shapes, thus improving the practicality of the device.

[0015] 3. When there are stains in the clamping groove of the clamping seat or the clamping groove is worn, the clamping seat can be disassembled and replaced by loosening the fixing screws on the clamping seat. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a clamping mechanism for nut processing according to the present invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of the drive device for a clamping mechanism for nut processing according to the present invention.

[0018] Figure 3 This is a schematic diagram of the overall structure of the adjusting device of the clamping mechanism for nut processing according to the present invention;

[0019] Figure 4 This is a schematic diagram of the overall structure of the clamping device of the clamping mechanism for nut processing according to this utility model.

[0020] In the diagram: 1. Mounting base; 2. Drive device; 3. Adjustment device; 4. Clamping device; 5. Controller; 6. Fixed seat No. 1; 7. Fixed seat No. 2; 8. Slide groove; 9. Support platform; 20. Servo motor No. 1; 21. Positive and negative screws; 22. Sliding seat; 23. Movable groove; 24. Mounting groove; 30. Movable seat; 31. Servo motor No. 2; 32. Gear No. 1; 33. Gear No. 2; 34. Screw hole; 40. Clamping seat; 41. Fixing screw; 42. Clamping groove. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figures 1-4 As shown, a clamping mechanism for nut processing includes a mounting base 1, a support platform 9 fixedly mounted on the upper middle part of the mounting base 1, a controller 5 fixedly mounted on the front middle part of the mounting base 1, a sliding groove 8 opened on the upper end of the mounting base 1, a second fixing seat 7 and a first fixing seat 6 fixedly mounted on the left and right ends of the mounting base 1 respectively, a driving device 2 is installed between the first fixing seat 6 and the second fixing seat 7, and an adjusting device 3 is threadedly installed on the left and right parts of the outer surface of the driving device 2, and a clamping device 4 is fixedly mounted on the upper end of both adjusting devices 3.

[0025] The drive unit 2 includes a first servo motor 20, with a forward and reverse screw 21 fixedly mounted at the output end of the first servo motor 20. Sliding seats 22 are threaded onto both the forward and reverse threads of the forward and reverse screw 21. Each sliding seat 22 has a movable groove 23 and a mounting groove 24 at its upper end. The forward and reverse screw 21 is rotatably mounted on a second fixed base 7, and the two sliding seats 22 are slidably mounted within a sliding groove 8. The first servo motor 20 is fixedly mounted on a first fixed base 6. The first servo motor 20 drives the forward and reverse screw 21 to rotate on the second fixed base 7. At this time, the two sliding seats 22 on the forward and reverse screw 21 slide closer to each other within the sliding groove 8. Simultaneously, the clamping seats 40 on the two sliding seats 22 also move closer to each other, thereby limiting and clamping the nut. Furthermore, the sliding adjustment of the two sliding seats 22 allows for the adaptation to nuts of different sizes.

[0026] The adjustment device 3 includes a movable base 30 and a second servo motor 31. A first gear 32 is fixedly mounted on the upper part of the outer surface of the movable base 30. A screw hole 34 is opened in the middle of the upper end of the movable base 30. A second gear 33 is fixedly mounted on the output end of the second servo motor 31. The second gear 33 is meshed with the right end of the first gear 32. The movable base 30 is movably installed in the movable slot 23, and the second servo motor 31 is fixedly installed in the mounting slot 24. The controller 5 is electrically connected to both the first servo motor 20 and the second servo motor 31. The second servo motor 31 drives the second gear 33, which in turn drives the first gear 32 and the movable base 30. When the movable base 30 rotates in the movable slot 23, the clamping seat 40 on it also rotates and adjusts accordingly, thereby adjusting the clamping slot 42 on the clamping seat 40 to correspond to nuts of different shapes.

[0027] The clamping device 4 includes a clamping base 40, with a fixing screw 41 installed on the upper end of the clamping base 40. Clamping slots 42 are formed at the front, left, rear, and right ends of the clamping base 40. The movable base 30 is fixedly installed on the upper end of the movable base 30 by the fixing screw 41. The four clamping slots 42 are a circular slot, a polygonal slot, a rectangular slot, and a triangular slot, respectively. The clamping base 40 can be disassembled and replaced by loosening the fixing screw 41 on it.

[0028] It should be noted that this utility model is a clamping mechanism for nut processing. First, the controller 5 is connected to an external power source. Then, the nut is placed in the middle of the support platform 9. At this time, the first servo motor 20 on the drive device 2 drives the positive and negative screws 21 to rotate on the second fixed seat 7. At this time, the two sliding seats 22 on the positive and negative screws 21 slide closer to each other in the sliding groove 8. At this time, the clamping seats 40 on the two sliding seats 22 also move closer to each other, thereby limiting and clamping the nut. Moreover, the sliding adjustment of the two sliding seats 22 can also be used for nuts of different sizes. When it is necessary to clamp nuts of different shapes, the second servo motor 31 on the adjustment device 3 drives the second gear 33. The second gear 33 then drives the first gear 32 and the movable seat 30. When the movable seat 30 rotates in the movable groove 23, the clamping seat 40 on it will also rotate and adjust accordingly, thereby adjusting the clamping groove 42 on the clamping seat 40 to correspond to nuts of different shapes, thus improving the practicality of the device.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A clamping mechanism for nut machining comprising a mounting base (1), characterized in that: The middle of upper end of mounting base (1) is fixedly installed with supporting table (9), the middle of front end of mounting base (1) is fixedly installed with controller (5), the upper end of mounting base (1) is provided with sliding slot (8), the left end and the right end of mounting base (1) are fixedly installed with no. 2 fixed base (7) and no. 1 fixed base (6) respectively, the no. 1 fixed base (6) and the no. 2 fixed base (7) are jointly installed with driving device (2), the left part of outer surface and the right part of outer surface of driving device (2) are all screw-mounted with adjusting device (3), the upper end of two adjusting devices (3) are all fixedly installed with clamping device (4).

2. The nut machining chucking mechanism according to claim 1, characterized by: The driving device (2) includes no. 1 servo motor (20), the output end of no. 1 servo motor (20) is fixedly installed with positive and negative screw rod (21), the positive thread and the reverse thread of positive and negative screw rod (21) are all screw-mounted with sliding seat (22), the upper end of two sliding seats (22) are all provided with movable slot (23) and installation slot (24), the positive and negative screw rod (21) is rotatably installed on no. 2 fixed base (7), two sliding seats (22) are all slidingly installed in sliding slot (8), no. 1 servo motor (20) is fixedly installed on no. 1 fixed base (6).

3. The nut machining chucking mechanism according to claim 2, characterized by: The adjusting device (3) includes movable seat (30) and no. 2 servo motor (31), the outer surface upper part of movable seat (30) is fixedly installed with no. 1 gear (32), the upper middle part of movable seat (30) is provided with screw hole (34), the output end of no. 2 servo motor (31) is fixedly installed with no. 2 gear (33), no. 2 gear (33) is connected on the right end of no. 1 gear (32), movable seat (30) is movably installed in movable slot (23), no. 2 servo motor (31) is fixedly installed in installation slot (24).

4. The nut machining chucking mechanism according to claim 3, characterized by: The clamping device (4) includes clamping seat (40), the upper end of clamping seat (40) is installed with fixed screw (41), the front end, the left end, the rear end and the right end of clamping seat (40) are all provided with clamping groove (42), movable seat (30) is fixedly installed on the upper end of movable seat (30) through fixed screw (41).

5. The nut machining chucking mechanism according to claim 3, characterized by: The controller (5) is electrically connected with no. 1 servo motor (20) and no. 2 servo motor (31).

6. The nut machining chucking mechanism according to claim 4, characterized by: Four clamping grooves (42) are circular groove, polygonal groove, rectangular groove and triangular groove respectively.