Tightening head capable of quickly opening double-end stud

Abstract

The utility model provides a double-end stud tightening head capable of being quickly opened, which is characterized in that one end of a shell is provided with a blind groove, the other end of the shell is connected to a tightening tool, an opening and closing clamping nozzle is arranged in the blind groove, one end of the opening and closing clamping nozzle is elastically connected to the bottom of the blind groove, and the opening and closing clamping nozzle can close and tightly bite the periphery of one end of a double-end stud. The tightening tool can drive the double-end stud to rotate through the shell and the opening and closing clamping mouth. According to the tightening head capable of rapidly opening the double-end stud, during implementation, a worker presses down to conduct tightening work, the double-end stud is clamped by the opening and closing clamping mouth in the mode that the opening and closing clamping mouth and the shell move relatively, then the double-end stud is tightened through a tightening tool, after the double-end stud is screwed in place, pressing on the tightening tool is loosened, and then the double-end stud is tightened. The opening and closing clamping nozzle loosens clamping of the double-end stud through elastic connection, screwing of the double-end stud is completed, the device is compact in overall structure, modular design is used, and the double-end studs of different specifications can be rapidly replaced.

Description

Technical Field

[0001] The utility model belongs to the field of intelligent equipment, and particularly relates to a double-headed stud tightening head that can be quickly opened. Background Art

[0002] As a common standard part in current mechanical equipment and assembly, the double-headed stud is characterized in that both ends are threaded but there is no position for the fastening tool to act. Therefore, a special assembly tool is required for the double-headed stud. The commonly used double-headed stud tightening head in the prior art is generally a sleeve. The main deficiencies of this type of tightening head are as follows:

[0003] First, this tightening head can only be used to release the double-headed stud after tightening to the torque, and cannot be used to release it after tightening to a certain depth.

[0004] Second, the existing sleeves for tightening double-headed studs are large in size and single in size, and cannot be directly used in automated equipment. Summary of the Invention

[0005] In view of this, the utility model aims to provide a double-headed stud tightening head that can be quickly opened to solve at least one of the above-mentioned problems in the prior art.

[0006] To achieve the above object, the technical solution of the utility model is realized as follows:

[0007] A double-headed stud tightening head that can be quickly opened includes a housing. One end of the housing is provided with a blind groove, and the other end of the housing is connected to a tightening tool. An opening and closing jaw is arranged in the blind groove, and one end of the opening and closing jaw is elastically connected to the bottom of the blind groove. The opening and closing jaw can close and bite the periphery of one end of the double-headed stud, and the tightening tool can drive the double-headed stud to rotate through the housing and the opening and closing jaw.

[0008] Further, a cushion block is arranged at one end of the opening and closing jaw. The periphery of the cushion block is slidably connected to the inside of the blind groove, and one end of the cushion block is elastically connected to the bottom of the blind groove through a first spring.

[0009] Further, the opening and closing jaw is a V-shaped jaw. The opening and closing jaw includes two oppositely arranged clamping blocks, and the cross-section of each clamping block is an arc structure. The outer side of each clamping block is slidably connected to the side wall of the blind groove. A clamping groove is arranged on the inner side of the clamping block for clamping the periphery of the double-headed stud, and one end of the clamping block is elastically connected to the bottom of the blind groove.

[0010] Further, an opening and closing slider is coaxially arranged in the blind groove, and the opening and closing slider is located inside the opening and closing jaw. The opening and closing slider is a frustum-shaped structure. A sliding rod is installed at the large-diameter end of the opening and closing slider. A support rod is arranged in the blind groove, and a sliding hole is arranged on the support rod. The sliding rod is slidably connected to the sliding hole, and the periphery of the opening and closing slider can abut against the inner ring of the opening and closing jaw.

[0011] Further, a second spring is arranged on the sliding rod, and two ends of the second spring are respectively fixedly connected to one end of the opening and closing slider and one end of the support rod.

[0012] Further, an avoidance long hole is arranged on each clamping block, the periphery of the support rod is located in the avoidance long hole, and the clamping block can slide relative to the support rod through the avoidance long hole.

[0013] Further, a guiding slope groove is arranged on the inner side of each clamping block, and the periphery of the opening and closing slider can be attached to the guiding slope groove, which is the opening structure of the opening and closing clamping jaws. And the guiding slope groove is located above the clamping type groove.

[0014] Further, a limiting platform is arranged on the inner side of each clamping block, the upper end of the opening and closing slider can abut against the lower end of the limiting platform, a guiding ring platform is arranged in the blind groove, a guiding ring groove is arranged on the periphery of the opening and closing clamping jaws, and the guiding ring platform is slidably matched with the guiding ring groove and the opening and closing slider abuts against the lower end of the limiting platform, which is the closing structure of the opening and closing clamping jaws.

[0015] Compared with the prior art, the double-headed stud tightening head capable of being quickly opened according to the present invention has the following beneficial effects:

[0016] (1) For the double-headed stud tightening head capable of being quickly opened according to the present invention, when in implementation, the staff presses down for tightening work. By means of the relative movement between the opening and closing clamping jaws and the housing, the opening and closing clamping jaws clamp the double-headed stud, and then the double-headed stud is tightened by a tightening tool. After the double-headed stud is screwed in place, the pressing on the tightening tool is released, and through the elastic connection, the opening and closing clamping jaws release the clamping of the double-headed stud, completing the screwing of the double-headed stud. The overall structure of the device is compact and modular design is adopted. For double-headed studs of different specifications, it can be quickly replaced.

[0017] (2) For the double-headed stud tightening head capable of being quickly opened according to the present invention, a clamping type groove is arranged on the inner side of the clamping block. The clamping type groove is used to increase the friction force between the cushion block and the periphery of the double-headed stud, and the V-shaped clamping jaws are telescoped by the first spring, and the structure is safe and compact.

[0018] (3) For the double-headed stud tightening head capable of being quickly opened according to the present invention, two ends of the second spring are respectively fixedly connected to one end of the opening and closing slider and one end of the support rod. When in implementation, after the double-headed stud is tightened in place, the opening and closing slider can quickly push open the V-shaped clamping jaws under the push of the second spring, and the separation of the double-headed stud is fast and efficient, and has no influence on the torque and height of the already tightened double-headed stud. Description of the Drawings

[0019] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0020] Figure 1 Schematic diagram of a structure of a double-headed stud tightening head that can be quickly opened according to an embodiment of the present utility model;

[0021] Figure 2 Schematic diagram of the structure of the housing according to an embodiment of the present utility model;

[0022] Figure 3 Cross-sectional schematic diagram of a double-headed stud tightening head that can be quickly opened according to an embodiment of the present utility model;

[0023] Figure 4 Schematic diagram of the structure of the opening and closing jaw according to an embodiment of the present utility model;

[0024] Figure 5 Schematic diagram of the structure of the opening and closing slider according to an embodiment of the present utility model;

[0025] Figure 6 Cross-sectional schematic diagram of a double-headed stud being clamped by a double-headed stud tightening head that can be quickly opened according to an embodiment of the present utility model.

[0026] Description of reference numerals:

[0027] 1 - Housing; 11 - Blind groove; 12 - Guide ring platform; 2 - Opening and closing jaw; 21 - Clamping block; 22 - Clamping type groove; 23 - Avoidance long hole; 24 - Guide slope groove; 25 - Limiting platform; 26 - Guide ring groove; 3 - Double-headed stud; 4 - Spacer block; 5 - First spring; 6 - Opening and closing slider; 61 - Slide bar; 62 - Support rod; 63 - Second spring. Detailed implementation manners

[0028] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it 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, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0032] As Figures 1 - 6 shown, a double-headed stud tightening head that can be quickly opened includes a housing 1. One end of the housing 1 is provided with a blind groove 11. The other end of the housing 1 is connected to a tightening tool. An opening and closing jaw 2 is arranged in the blind groove 11, and one end of the opening and closing jaw 2 is elastically connected to the bottom of the blind groove 11. The opening and closing jaw 2 can close and bite the periphery of one end of the double-headed stud 3. The tightening tool can drive the double-headed stud 3 to rotate through the housing 1 and the opening and closing jaw 2. During implementation, the staff presses down on the tightening work. By means of the relative movement between the opening and closing jaw 2 and the housing 1, the opening and closing jaw 2 clamps the double-headed stud 3. Then, the double-headed stud 3 is tightened through the tightening tool. After the double-headed stud 3 is screwed in place, the pressing on the tightening tool is released, and the opening and closing jaw 2 releases the clamping of the double-headed stud 3 through elastic connection, completing the screwing of the double-headed stud 3. The overall structure of the device is compact and uses a modular design, and for double-headed studs 3 of different specifications, it can be quickly replaced.

[0033] A cushion block 4 is arranged at one end of the opening and closing jaw 2. The periphery of the cushion block 4 is slidably connected to the inside of the blind groove 11, and one end of the cushion block 4 is elastically connected to the bottom of the blind groove 11 through a first spring 5. The opening and closing jaw 2 is a V-shaped jaw. The opening and closing jaw 2 includes two oppositely arranged clamping blocks 21, and the cross-section of each clamping block 21 is an arc structure. The outside of each clamping block 21 is slidably connected to the side wall of the blind groove 11. A clamping groove 22 is arranged on the inner side of the clamping block 21 for clamping to the periphery of the double-headed stud 3. One end of the clamping block 21 is elastically connected to the bottom of the blind groove 11. The clamping groove 22 is used to increase the friction between the cushion block 4 and the periphery of the double-headed stud 3, and the V-shaped jaw is telescoped through the first spring 5, and the structure is safe and compact.

[0034] A split slider 6 is coaxially arranged in the blind groove 11, and the split slider 6 is located inside the split chuck 2. The split slider 6 is of an inverted conical structure. A slide bar 61 is installed at the large-diameter end of the split slider 6. A support rod 62 is arranged in the blind groove 11. A slide hole is provided on the support rod 62. The slide bar 61 is slidably connected to the slide hole. The outer periphery of the split slider 6 can abut against the inner ring of the split chuck 2. A second spring 63 is arranged on the slide bar 61. The two ends of the second spring 63 are respectively fixedly connected to one end of the split slider 6 and one end of the support rod 62. During implementation, after the double-headed stud 3 is tightened in place, the split slider 6 can quickly push open the V-shaped chuck under the push of the second spring 63. The separation of the double-headed stud 3 is fast and efficient, and it has no influence on the torque and height of the already tightened double-headed stud 3.

[0035] Each clamping block 21 is provided with an avoidance long hole 23. The outer periphery of the support rod 62 is located in the avoidance long hole 23. The clamping block 21 can slide relative to the support rod 62 through the avoidance long hole 23. The avoidance long hole 23 prevents the support rod 62 from interfering with the sliding of the clamping block 21, and as Figure 3 、 Figure 4 and Figure 6 shown, a guiding slope groove 24 is provided on the inner side of each clamping block 21. The outer periphery of the split slider 6 can be attached to the guiding slope groove 24, which is the opening structure of the split chuck 2, and the guiding slope groove 24 is located above the clamping groove 22; a limiting platform 25 is arranged on the inner side of each clamping block 21. The upper end of the split slider 6 can abut against the lower end of the limiting platform 25. A guiding ring platform 12 is arranged in the blind groove 11. A guiding ring groove 26 is provided on the outer periphery of the split chuck 2. The guiding ring platform 12 is slidably fitted to the guiding ring groove 26, and the split slider 6 abuts against the lower end of the limiting platform 25, which is the closing structure of the split chuck 2.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A double-headed stud tightening head that can be quickly opened, characterized in that: It includes a housing (1). One end of the housing (1) is provided with a blind groove (11). The other end of the housing (1) is connected to a tightening tool. An opening and closing jaw (2) is arranged in the blind groove (11), and one end of the opening and closing jaw (2) is elastically connected to the bottom of the blind groove (11). The opening and closing jaw (2) can be closed to bite tightly around one end of a stud (3). The tightening tool can drive the stud (3) to rotate through the housing (1) and the opening and closing jaw (2).

2. A quick-opening double-headed stud tightening head according to claim 1, characterized in that: A cushion block (4) is arranged at one end of the opening and closing jaw (2). The periphery of the cushion block (4) is slidably connected to the inside of the blind groove (11), and one end of the cushion block (4) is elastically connected to the bottom of the blind groove (11) through a first spring (5).

3. A quick-opening double-headed stud tightening head according to claim 1, characterized in that: The opening and closing jaw (2) is a V-shaped jaw. The opening and closing jaw (2) includes two oppositely arranged clamping blocks (21), and the cross-section of each clamping block (21) is an arc structure. The outside of each clamping block (21) is slidably connected to the side wall of the blind groove (11). A clamping groove (22) is arranged on the inner side of the clamping block (21) for clamping around the stud (3). One end of the clamping block (21) is elastically connected to the bottom of the blind groove (11).

4. A quick-opening double-headed stud tightening head according to claim 3, characterized in that: An opening and closing slider (6) is coaxially arranged in the blind groove (11), and the opening and closing slider (6) is located inside the opening and closing jaw (2). The opening and closing slider (6) is an inverted conical structure. A sliding rod (61) is installed at the large-diameter end of the opening and closing slider (6). A support rod (62) is arranged in the blind groove (11). A sliding hole is arranged on the support rod (62), and the sliding rod (61) is slidably connected to the sliding hole. The periphery of the opening and closing slider (6) can abut against the inner ring of the opening and closing jaw (2).

5. The quick-opening double-headed stud tightening head according to claim 4, characterized in that: A second spring (63) is arranged on the sliding rod (61), and both ends of the second spring (63) are fixedly connected to one end of the opening and closing slider (6) and one end of the support rod (62) respectively.

6. A quick-opening double-headed stud tightening head according to claim 3, characterized in that: An avoidance long hole (23) is arranged on each clamping block (21). The periphery of the support rod (62) is located in the avoidance long hole (23), and the clamping block (21) can slide relative to the support rod (62) through the avoidance long hole (23).

7. A quick-opening double-headed stud tightening head according to claim 3, characterized in that: A guiding slope groove (24) is arranged on the inner side of each clamping block (21). The periphery of the opening and closing slider (6) can be attached to the guiding slope groove (24), which is the opening structure of the opening and closing jaw (2), and the guiding slope groove (24) is located above the clamping groove (22).

8. A quick-opening double-headed stud tightening head according to claim 3, characterized in that: A limiting platform (25) is arranged on the inner side of each clamping block (21). The upper end of the opening and closing slider (6) can abut against the lower end of the limiting platform (25). A guiding ring platform (12) is arranged in the blind groove (11). A guiding ring groove (26) is arranged on the periphery of the opening and closing jaw (2). The guiding ring platform (12) is slidably matched with the guiding ring groove (26), and the opening and closing slider (6) abutting against the lower end of the limiting platform (25) is the closing structure of the opening and closing jaw (2).

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