Quick clamping and fastening device

Abstract

The utility model belongs to the technical field of mechanical connecting pieces, and particularly relates to a quick clamping and fastening device which comprises a main body part and a fastening screw, and at least one part of a large-diameter through hole of the main body part is provided with an internal thread; the rapid clamping and fastening device further comprises a pressing cap. The pressing cap is provided with an external thread; the pressing cap is matched with the large-diameter through hole in a threaded mode and then presses the head of the fastening screw into the center hole. The fastening screws can be replaced, the structure is simple, the manufacturing cost is low, and the capacity of clamping the fastening screws of different types is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical connecting piece technical field, concretely relates to a quick clamping fastening device. BACKGROUND

[0002] In the clamping process of mechanical processing, in some cases, the space between the back of the part or tooling and the equipment is limited, which affects the use of wrench or can only be manually pre-tightened during pre-tightening, resulting in low clamping efficiency and long clamping time of the part or tooling.

[0003] The prior art has a hand screw, but the screw strength is low and cannot meet the use requirements, and one hand screw only corresponds to one screw specification, which cannot meet the use requirements in multiple scenes; at the same time, the hand screw is a consumable as a whole, and the screw will fail after multiple uses, resulting in scrap. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a quick clamping fastening device which can replace the fastening screw.

[0005] The technical scheme of the utility model is as follows:

[0006] A quick clamping fastening device comprises:

[0007] A main body portion is provided with a central hole; the central hole comprises a large-diameter through hole and a small-diameter through hole which are connected to each other;

[0008] A fastening screw is arranged in the large-diameter through hole, and at least a part of the rod portion of the fastening screw passes through the small-diameter through hole to reach outside the main body portion;

[0009] Wherein: at least a part of the large-diameter through hole is provided with an internal thread; the quick clamping fastening device further comprises a compression cap; the compression cap is provided with an external thread; after the compression cap is screwed with the large-diameter through hole, the head portion of the fastening screw is compressed in the central hole.

[0010] Further, one end of the compression cap away from the fastening screw is provided with a torque groove.

[0011] Further, the torque groove is used to cooperate with a torque wrench to realize the screwing-in torque of the fastening screw.

[0012] Further, the large-diameter through hole and the small-diameter through hole are coaxially arranged.

[0013] Further, the central hole and the main body portion are coaxially arranged.

[0014] Further, the main body portion is provided with an anti-skid groove or a screwing groove.

[0015] Further, the anti-skid groove or the twisting groove facilitates manual twisting of the main body portion.

[0016] Further, the torque groove is an internal hexagonal groove.

[0017] Further, the rod of the fastening screw has the same diameter as the small-diameter portion.

[0018] The utility model discloses the beneficial effects of:

[0019] The utility model discloses the hand screwing screw function can be realized, and cooperation pressure cap can also set the pre-tightening force of screwing based on the cooperation of wrench etc.

[0020] The quick clamping and fastening device provided by the utility model improves the clamping and dismounting efficiency of parts or tooling in some scenes where the use of clamping tools is limited, and the clamping and fastening device has the advantages of simple structure, low manufacturing cost and the ability to cooperate with fastening screws of multiple models and varieties. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0022] Fig. 1 It is an external structure view of the quick clamping and fastening device.

[0023] Fig. 2 It is an exploded view of the quick clamping and fastening device.

[0024] Fig. 3 It is a sectional view of the quick clamping and fastening device.

[0025] Among them: 1, pressure cap;2, main body portion;3, fastening screw. DETAILED DESCRIPTION

[0026] The embodiments of the present disclosure will be described in detail below with reference to the drawings.

[0027] Following, the embodiments of the present disclosure are described through specific examples, and other advantages and effects of the present disclosure can be easily understood by those skilled in the art from the disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. The present disclosure can also be implemented or applied by other different specific embodiments, and various modifications or changes can be made to the details in the specification without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present disclosure.

[0028] It should be noted that various aspects of the embodiments described below are within the scope of the appended claims. It should be apparent that the aspects described herein can be embodied in a wide variety of forms and that any specific structure and / or function described herein is merely illustrative. Based on the teachings provided herein one skilled in the art should appreciate that an aspect described herein can be implemented independently of any other aspects and that an aspect can be implemented both as any number of software running on a device and / or as an apparatus manufactured for a particular purpose. For example, an aspect can be implemented as a software routine running on a general purpose computer or be implemented as a hardware device, such as an application- specific integrated circuit ("ASIC") or a field-programmable gate array ("FPGA"). An aspect can be any combination of software and / or hardware.

[0029] It should also be noted that the figures provided in the following embodiments are only to illustrate the basic concept of the present disclosure in a schematic manner, and only the components related to the present disclosure are shown in the figures, not drawn according to the number, shape and size of the components in actual implementation, and the shape, number and proportion of each component in actual implementation can be arbitrarily changed, and the layout of the components can also be more complex.

[0030] In addition, in the following description, specific details are provided in order to facilitate a thorough understanding of the examples. However, one skilled in the art will understand that the aspects described can be practiced without these specific details.

[0031] In an embodiment of the present application, a quick clamping and fastening device is provided, referring to Figs. 1-3 , comprising:

[0032] The main body part 2 is provided with a center hole; the center hole comprises a large-diameter through hole and a small-diameter through hole connected to each other;

[0033] The fastening screw 3 is arranged with its head in the large-diameter through hole, and at least a part of the rod is arranged to pass through the small-diameter through hole to the outside of the main body part 2;

[0034] At least one part of the large-diameter through hole is provided with internal threads; the quick clamping fastening device further comprises a compression cap 1; the compression cap 1 is provided with external threads; after the compression cap 1 is screwed into the large-diameter through hole, the head of the fastening screw 3 is compressed in the central hole.

[0035] In the embodiment, the main body part 2 can be set to be consistent with the hand-tightening part of a conventional hand-tightening screw, and an anti-skid groove can be set according to requirements, and the diameter can also be set according to requirements, which is not limited here.

[0036] The fastening screw 3 of the embodiment is a main component for connecting external equipment or parts, and the shape of the head is not limited.

[0037] In one embodiment, the compression cap 1 is provided with a torque groove at the end away from the fastening screw 3;

[0038] The torque groove is used to cooperate with a torque wrench to realize the tightening torque of the fastening screw 3. The specific shape of the torque groove is used to cooperate with different wrenches or torque wrenches, and the specific structure is not limited here.

[0039] The embodiment can realize the function of a hand-tightening screw, and further set the pre-tightening force of the fastening screw 3 based on the cooperation of a wrench and the like by cooperating with the compression cap 1.

[0040] In some embodiments, the main body part 2 is provided with a tightening groove or an anti-skid groove.

[0041] In some embodiments, the tightening groove or the anti-skid groove facilitates manual twisting, and the specific structure is not limited here.

[0042] In some embodiments, the torque groove is an internal hexagonal groove.

[0043] In some embodiments, the diameter of the head of the fastening screw 3 is slightly smaller than the diameter of the large-diameter part.

[0044] In some embodiments, the large-diameter through hole and the small-diameter through hole are coaxially arranged.

[0045] In some embodiments, the central hole and the main body part 2 are coaxially arranged

[0046] In some embodiments, the rod part of the fastening screw 3 has the same diameter as the small-diameter part.

[0047] The compression cap 1 part is used to fix the screw, and fasten parts or tooling by using the internal hexagonal groove on the bolt;

[0048] The main body part 2 is used for manually pre-tightening parts or tooling;

[0049] The fastening screw 3 part is used to fix parts or tooling;

[0050] In some embodiments, the compression cap 1 is a hexagonal socket bolt, the overall profile is a cylinder, the cylindrical surface is threaded, and one end surface has a hexagonal socket recess.

[0051] In some embodiments, after the fastening screw 3 is fixed on the main body part 2 based on the compression cap 1, the screw is rotated by hand to pre-tighten the parts or tooling.

[0052] Then, whether to use a wrench or other turning tool to act on the compression cap 1 to achieve the torque setting of the fastening screw 3 can be selected based on the requirement.

[0053] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A quick-attach fastening device, characterized in that The utility model relates to a quick clamping fastening device, which comprises: a main body part with a central hole; the central hole comprises a large-diameter through hole and a small-diameter through hole connected with each other; a fastening screw, the head of which is arranged in the large-diameter through hole, and at least a part of the rod of the fastening screw passes through the small-diameter through hole to reach outside the main body part; wherein: at least a part of the large-diameter through hole is provided with internal threads; the quick clamping fastening device further comprises a compression cap; the compression cap is provided with external threads; after the compression cap is screwed into the large-diameter through hole, the head of the fastening screw is compressed in the central hole.

2. The quick-attach fastening device of claim 1, wherein The end of the compression cap away from the fastening screw is provided with a torque groove.

3. The quick-attach fastening device of claim 2, wherein The torque groove is used to cooperate with a torque wrench to realize the screwing-in torque of the fastening screw.

4. The quick-attach fastening device of claim 1, wherein The large-diameter through hole is coaxially arranged with the small-diameter through hole.

5. The quick-attach fastening device of claim 1, wherein The central hole is coaxially arranged with the main body part.

6. The quick-attach fastening device of claim 1, wherein The main body part is provided with an anti-skid groove or a screwing groove.

7. The quick-attach fastening arrangement according to claim 6, characterized in that The anti-skid groove or the screwing groove facilitates manual screwing of the main body part.

8. The quick-attach fastening arrangement of claim 3, wherein, The torque groove is an internal hexagonal groove.

9. The quick-attach fastening device of claim 1, wherein The diameter of the rod of the fastening screw is the same as that of the small-diameter part.

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