CN205064463U - Novel concentric clamping device of adjustable length - Google Patents

Abstract

The utility model discloses a novel concentric clamping device with adjustable length, which comprises outer nuts, sleeve nuts and bolts which are sheathed in sequence. The sleeve nuts are provided with external threads and internal threads, and the external threads are the same as the external The internal thread of the nut matches, the internal thread matches the external thread of the bolt, and the pitch of the external thread is different from that of the internal thread; a hole for passing the shaft is also provided at the axial top end of the external nut; An adjustment piece is also arranged on the sleeve nut, and the adjustment piece is a hexagonal boss or a flange with a flange; a through hole for passing a shaft is also arranged on the bolt; the outer Both the thread and the internal thread are right-handed; the pitch of the external thread is 0.25~5mm; The device should be short to fit in a small space, and the two ends of the clamping device are coaxial.

Description

A new type of concentric clamping device with adjustable length

technical field

The utility model relates to the field of clamping device technology and the like, in particular, it is a novel concentric clamping device with adjustable length.

Background technique

The overall length of the traditional clamping nut is fixed, it is difficult to adjust the length and is suitable for clamping in a short space, and when the traditional short clamping nut is designed, the two ends of the clamping nut and the shaft passing through them will have a slight deviation on the side , it is difficult to adapt to the concentric clamping operation of different distance axes.

Utility model content

The purpose of this utility model is to design a new type of concentric clamping device with adjustable length, which overcomes the shortcomings of existing clamping devices that cannot adjust the length and adapt to short-distance clamping, and the designed new type of concentric clamping device can not only adjust the length , and shorter than common clamping devices, suitable for short spaces, and both ends of the clamping device are coaxial.

The utility model is realized through the following technical scheme: a novel concentric clamping device with adjustable length, which includes outer nuts, sleeve nuts and bolts which are sleeved in sequence, and the sleeve nuts are provided with external threads and internal threads. The external thread matches the internal thread of the external nut, the internal thread matches the external thread of the bolt, and the pitch of the external thread is different from that of the internal thread.

Furthermore, in order to better realize the utility model, a shaft to be clamped can be inserted conveniently, and the following structure is specially provided: a hole for passing the shaft is also provided at the axial top end of the outer nut.

Further, in order to better realize the utility model, it is convenient to adjust the position of the sleeve nut, and the length of the entire clamping device can be adjusted by hand turning or twisting, and the following structure is specially provided: on the sleeve nut An adjustment piece is also provided, and the adjustment piece is a hexagonal boss or a flange with a raised edge.

Further, in order to better realize the utility model, another shaft to be clamped can be inserted conveniently, and the following structure is specially provided: the bolt is also provided with a through hole for passing the shaft.

Further, in order to better realize the utility model, the same tightness and looseness can be achieved, and the two shafts are conveniently clamped concentrically, and the following arrangement structure is adopted in particular: both the external thread and the internal thread are right-handed threads.

Further, in order to better realize the utility model, it is able to adapt to outer nuts of different diameters, and the following structure is specially provided: the pitch of the outer thread is 0.25~5mm.

Further, in order to better realize the utility model, which can adapt to bolts of different diameters, the following structure is specially provided: the pitch of the internal thread is 0.25~5mm.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

The utility model overcomes the disadvantage that the existing clamping device cannot adjust the length and is suitable for short-distance clamping, and the designed new concentric clamping device can not only adjust the length, but also is shorter than the common clamping device, and can be used in short spaces. And the two ends of the clamping device are coaxial.

The utility model has the advantages of simple and efficient structure, fast installation, fast clamping of two shafts and simultaneous control of the clamping force.

The utility model has a simple structure, is easy to manufacture, has good concentricity when clamping two shafts, and will not deviate along the axial direction of the clamp.

Description of drawings

Fig. 1 is a structural diagram of the utility model.

Among them, 1-external nut, 2-bolt, 3-sleeve nut, 4-internal thread, 5-external thread, 6-adjusting piece, 7-hole, 8-through hole.

detailed description

The utility model will be further described in detail below in conjunction with the examples, but the implementation of the utility model is not limited thereto.

Example 1:

A new type of concentric clamping device with adjustable length, which overcomes the shortcoming that the existing clamping device cannot adjust the length and is suitable for short-distance clamping. It should be short, suitable for short space, and the two ends of the clamping device are coaxial, as shown in Figure 1, it is specially arranged as the following structure: including the outer nut 1, the sleeve nut 3 and the bolt 2 which are sleeved in sequence , the sleeve nut 3 is provided with an external thread 5 and an internal thread 4, the external thread 5 matches the internal thread of the external nut 1, the internal thread 4 matches the external thread of the bolt 2, and the external thread The pitch of 5 is different from the pitch of internal thread 4.

Example 2:

This embodiment is further optimized on the basis of the above embodiments. In order to better realize the utility model, it can be conveniently inserted into a shaft to be clamped. As shown in Figure 1, the following structure is specially provided: A hole 7 for passing a shaft is also provided at the axial top end of the outer nut 1 .

Example 3:

This embodiment is further optimized on the basis of any of the above-mentioned embodiments. In order to better realize the utility model, it is convenient to adjust the position of the sleeve nut, and the position of the entire clamping device can be adjusted by hand rotation or twisting. The length, as shown in FIG. 1 , is particularly provided with the following structure: an adjustment member 6 is also arranged on the sleeve nut 3 , and the adjustment member 6 is a hexagonal boss or a flange with a flange.

Example 4:

This embodiment is further optimized on the basis of any of the above-mentioned embodiments. In order to better realize the utility model, it can be conveniently inserted into another shaft to be clamped. As shown in Figure 1, it is specially provided with the following The above structure: the bolt 2 is also provided with a through hole 8 for passing through the shaft.

Example 5:

This embodiment is further optimized on the basis of any of the above-mentioned embodiments. In order to better realize the utility model, it can achieve the same tightness and looseness, and is convenient for concentric clamping of the two shafts. In particular, the following Setting structure: both the external thread 5 and the internal thread 4 are right-handed threads.

Embodiment 6:

This embodiment is further optimized on the basis of any of the above-mentioned embodiments. Further, in order to better realize the utility model, it can adapt to external nuts of different diameters, and is particularly provided with the following structure: the pitch of the external thread 5 is 0.25~5mm.

Embodiment 7:

This embodiment is further optimized on the basis of any of the above-mentioned embodiments. Further, in order to better realize the utility model, it can adapt to bolts of different diameters, and is specially provided with the following structure: the pitch of the internal thread 4 is 0.25 ~5mm.

When setting, the pitches of the external thread 5 and the internal thread 4 meet different conditions, preferably all can be 0.25mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.7mm, 0.8mm, 1mm, 1.25 mm, 1.5mm, 1.75mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm; the external thread 5 is larger or smaller than the internal thread 4.

When in use, first rotate the outer nut 1 or bolt 2 to adjust the overall length of the clamping device according to the distance between the two clamping axes, and at the same time ensure the axis of the hole 7 on the top of the outer nut 1 and the through hole 8 at the end of the bolt 2 in the same plane.

Secondly, the utility model is inserted into the two shafts to be clamped. In order to accurately adjust the length of the utility model to control the clamping force, the inner and outer sides of the sleeve nut 3 are right-handed threads, but the pitches are different; for example, when When the external thread 5 has a right-handed external thread with a pitch of 1.25mm, and the internal thread 4 is provided with a right-handed internal thread with a pitch of 1mm, the length of the sleeve nut 3 will change by about 0.25mm after one rotation. Accordingly, by rotating the sleeve nut 3 The length of the clamping device can be changed, the clamping of the two axes can be realized and the clamping force can be controlled.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification or equivalent change made to the above embodiments according to the technical essence of the utility model falls within the scope of the present utility model. Within the protection scope of the present utility model.

Claims (7)

1. A new type of concentric clamping device with adjustable length, characterized in that: it includes an outer nut (1), a sleeve nut (3) and a bolt (2) which are sleeved in sequence, and the sleeve nut (3) is set There are external threads (5) and internal threads (4), the external threads (5) match the internal threads of the external nut (1), the internal threads (4) match the external threads of the bolt (2), The pitch of the external thread (5) is different from that of the internal thread (4). 2. A novel length-adjustable concentric clamping device according to claim 1, characterized in that: a hole (7) for passing a shaft is also provided at the axial top end of the outer nut (1). 3. A new type of adjustable length concentric clamping device according to claim 1, characterized in that: an adjustment piece (6) is also provided on the sleeve nut (3), and the adjustment piece (6 ) is a hexagonal boss or a flange with a raised edge. 4. A novel length-adjustable concentric clamping device according to claim 1, characterized in that: a through hole (8) for passing a shaft is also provided on the bolt (2). 5. A novel length-adjustable concentric clamping device according to any one of claims 1-4, characterized in that: both the external thread (5) and the internal thread (4) are right-handed threads. 6. A novel length-adjustable concentric clamping device according to any one of claims 1-4, characterized in that: the pitch of the external thread (5) is 0.25~5mm. 7. A novel length-adjustable concentric clamping device according to any one of claims 1-4, characterized in that: the pitch of the internal thread (4) is 0.25~5mm.