CN209903066U - Tool for screwing stud - Google Patents

Abstract

The utility model provides a pair of revolve frock of twisting double-screw bolt, including connector, bayonet joint and the cover body. The connector comprises a connector body, a driving device, a sleeve body and a connecting head, wherein one end of the connecting head is connected with the driving device, the other end of the connecting head is provided with an inner cavity with a downward opening, a driving shaft of the driving device is coaxially arranged with the inner cavity of the connecting head, the connecting plug is detachably fixed in the inner cavity, the sleeve body is fixedly connected below the connecting plug, the diameter of the sleeve body is larger than that of the opening of the inner cavity of the connecting head, the sleeve body is abutted to the edge of the opening of the connecting head, the. According to the tool for screwing the stud, the plug connector is detachably fixed in the inner cavity of the connector, the stud is screwed through the sleeve body below the plug connector, the plug connector and the sleeve body can be replaced at any time according to the adjustment of the size of the stud or the abrasion of the sleeve body, and the tool is simple and convenient.

Description

A tool for screwing studs

technical field

The utility model belongs to the technical field of auxiliary disassembly tools, in particular to a tool for screwing a stud.

Background technique

More than 90% of the ball valve cavity is connected by stud and nut. When the stud is disassembled and assembled manually, the disassembly and assembly time accounts for about 15% to 20% of the entire assembly time. Modern production and processing industries are developing towards the rapid production mode of automated assembly lines. Manual operations are time-consuming and labor-intensive, which greatly affects production efficiency.

In the existing screwing tool, an inverted U-shaped clip is installed at the lower end of the connecting shaft, the opening of the clip faces downward, a soft protective pad is arranged on the inner wall of the clip, the lower end of the connecting shaft is provided with a thread segment with an external thread, and the upper part of the clip is provided with a threaded section. There is a threaded hole, the upper part of the clip is screwed on the threaded section, the lower end face of the threaded section is provided with a threaded mounting hole, the upper end of the protective pad is provided with a stepped hole, and the protective pad and the clip are fixed on the connecting shaft by bolts inserted in the threaded mounting hole. The lower part of the clip is sleeved on the stud, the clip and the shock absorber cooperate with each other and are tightened on the stud, the driver drives the connecting shaft to rotate, and drives the clip to screw the stud.

However, the above device has the following problems in practical use:

The protective pads on the inner wall of the clips correspond to the clips one-to-one. When replacing the clips according to the size of different studs, the clips and the protective pads on the inner wall of the clips need to be replaced together. It is sleeved on the stud, and then screwed on the stud through the shock absorber, which is complicated in process and low in assembly efficiency.

Utility model content

Therefore, the technical problem to be solved by the present invention is that the existing screwing tooling is complicated in replacement operation and complicated in assembly process.

To this end, the utility model provides a tool for screwing a stud, comprising:

a connecting head, one end is connected with the driving device, and the other end has an inner cavity with an opening facing downward; the driving shaft of the driving device is coaxially arranged with the inner cavity of the connecting head;

a plug connector, detachably fixed in the inner cavity;

a sleeve body, which is fixedly connected under the plug connector; the diameter of the sleeve body is larger than the diameter of the opening of the inner cavity of the connector; the sleeve body abuts on the edge of the opening of the connector;

The sleeve body is suitable for being sleeved and clamped on the to-be-screwed stud;

The driving device drives the connecting head to drive the sleeve to rotate to screw the to-be-screwed stud.

Preferably, in the above-mentioned tooling for screwing the stud, a pin hole that penetrates in the radial direction is provided on the plug connector;

A first positioning hole and a second positioning hole are respectively provided on the peripheral outer wall of the connecting head at positions corresponding to both ends of the pin hole;

The connecting piece is sequentially passed through the first positioning hole and the pin hole and fixed in the second positioning hole.

Preferably, in the above-mentioned tool for screwing the stud, the second positioning hole is a through hole or a blind hole.

More preferably, in the above-mentioned tool for screwing the stud, an internal thread is arranged in the second positioning hole; the connecting piece is threadedly fitted in the second positioning hole.

Preferably, in the above-mentioned tool for screwing the stud, the sleeve body has a fixing groove with an opening facing downward; the fixing groove is matched with the stud to be screwed and is suitable for being sleeved and clamped on the screw to be screwed. on the column;

The fixing groove is coaxial with the inner cavity of the connecting head.

Preferably, in the above-mentioned tool for screwing the stud, the fixing groove is a circular groove; the inner diameter of the circular groove is smaller than the outer diameter of the stud to be screwed.

More preferably, in the above-mentioned tool for screwing the stud, the radial cross-section of the plug connector and the radial cross-section of the inner cavity of the connector form a matching regular polygon.

Preferably, in the above-mentioned tool for screwing the stud, a fixing hole with an upward opening is provided on the side of the connecting head facing away from the inner cavity;

The driving shaft of the driving device is fixed in the fixing hole.

Preferably, the above-mentioned tooling for screwing the stud, the plug connector and the sleeve body are made of rubber.

Preferably, in the above-mentioned tool for screwing the stud, the plug connector and the sleeve are integrally formed.

The technical scheme of the present utility model has the following advantages:

1. The utility model provides a tool for screwing a stud, including a connector, a plug connector and a sleeve. One end of the connecting head is connected with the driving device, and the other end has an inner cavity with an opening facing downward. The driving shaft of the driving device is coaxially arranged with the inner cavity of the connecting head, the plug connector is detachably fixed in the inner cavity, and the sleeve body is fixedly connected to the inner cavity of the connecting head. Below the plug connector, the diameter of the sleeve body is larger than the opening diameter of the inner cavity of the connector. The sleeve body abuts on the opening edge of the connector. The sleeve body is suitable for being sleeved and clamped on the stud to be screwed. The drive device drives the connector to drive The sleeve body makes a rotational motion to screw the stud.

In the tooling for screwing the stud of this structure, the plug connector is detachably fixed in the inner cavity of the connector, and the stud is screwed through the sleeve body under the plug connector. The plug connector and the sleeve body can be adjusted according to the size of the stud or The wear of the sleeve body can be replaced at any time, which is simple and convenient.

2. A tooling for screwing a stud provided by the present utility model, a pin hole penetrating in a radial direction is provided on the plug connector, and a first positioning is respectively provided on the outer wall of the connector at the positions corresponding to both ends of the pin hole. A hole and a second positioning hole, and the connecting piece is sequentially passed through the first positioning hole and the pin hole and fixed in the second positioning hole.

The tooling for screwing the stud of this structure fixes the plug connector on the connector through the pin hole, and the disassembly and assembly operations are simple and quick.

3. The utility model provides a tool for screwing a stud, an internal thread is arranged in the second positioning hole; the connecting piece is threadedly fitted in the second positioning hole.

In the tooling for screwing the stud of this structure, the connecting piece is threadedly matched with the second positioning hole, so that the fixing of the plug connector is firmer, and the plug connector will not fall off when the driving device drives the plug connector to rotate.

4. A tooling for screwing a stud provided by the present invention has a fixing groove with an opening facing downward on the sleeve body; On the stud, the fixing groove is coaxially arranged with the inner cavity of the connector.

In the tooling for screwing the stud of this structure, the fixing groove on the sleeve body is sleeved and clamps the stud to be screwed, and the fixing groove is coaxially arranged with the inner cavity of the connecting head to ensure the stability of the screwing stud.

5. The utility model provides a tool for screwing a stud, and the fixing groove is a circular groove; the inner diameter of the circular groove is smaller than the outer diameter of the stud to be screwed.

The tooling for screwing the stud with this structure, the inner diameter of the circular fixing groove is smaller than the outer diameter of the stud to be screwed, the interference fit between the fixing groove and the stud, the fixing groove is sleeved on the stud, and the clamping is firmer. Screw more stable.

6. The utility model provides a tool for screwing a stud, wherein the radial section of the plug connector and the radial section of the inner cavity of the connector are regular polygons that match. .

The tooling for screwing the stud of this structure adopts a regular polygon design, which is convenient for the coaxial arrangement of the drive shaft of the driving device and the inner cavity of the connector. At the same time, the regular polygon is more conducive to anti-slip. When the plug connector rotates with the connector, the connection is more stable firm.

7. The utility model provides a tool for screwing a stud, and the plug joint and the sleeve body are made of rubber.

The tooling for screwing the stud of this structure, the rubber material is more suitable for the interference fit when the fixing groove is sleeved and clamped on the stud, and is more conducive to protecting the thread of the stud.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the following descriptions The accompanying drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1 is the structural representation of a kind of tooling for screwing studs in the utility model;

Fig. 2 is a sectional view of a tool for screwing a stud in the utility model;

Description of reference numbers:

1-connecting head; 11-fixing hole; 2-plug connector; 21-pin hole; 3-sleeve body; 31-fixing slot; 4-stud to be screwed; 5-drive shaft; 6-valve body.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example 1

This embodiment provides a tool for screwing a stud, as shown in FIG. 1 and FIG. 2 , including a connector 1 , a plug connector 2 and a sleeve body 3 . One end of the connector 1 is connected with the driving device, and the other end has an inner cavity with an opening facing downward. The driving shaft 5 of the driving device is coaxially arranged with the inner cavity of the connector 1, and the plug connector 2 is detachably fixed in the inner cavity, and the sleeve The body 3 is fixedly connected under the plug connector 2, the diameter of the sleeve body 3 is larger than the opening diameter of the inner cavity of the connector 1, the sleeve body 3 abuts on the edge of the opening of the connector 1, and the sleeve body 3 is suitable for being sleeved and clamped to be screwed. On the screw stud 4, the driving device drives the connector 1 to drive the sleeve body 3 to perform a rotational motion to screw the stud.

In the tooling for screwing the stud of this structure, the plug connector 2 is detachably fixed in the inner cavity of the connector 1, and the stud is screwed through the sleeve body 3 under the plug connector 2. The plug connector 2 and the sleeve body 3 can be screwed according to the screw. The adjustment of the column size or the wear of the sleeve body 3 can be replaced at any time, which is simple and convenient.

As shown in FIG. 2 , the upper end of the connector 1 is provided with a fixing hole 11, and the drive shaft 5 of the driving device is fixedly connected in the fixing hole 11. The driving device can be a pneumatic or electric wrench, etc., depending on specific needs, the lower end of the connector 1 It is an inner cavity with an opening facing downward, the radial section of the inner cavity is a regular regular polygon, and the inner cavity and the drive shaft 5 are coaxially arranged. As shown in FIG. 1 , the radial section of the plug connector 2 is a regular polygon matching the inner cavity, and the plug connector 2 is installed in the inner cavity of the connector 1 .

As shown in FIG. 2 , the plug connector 2 is provided with pin holes 21 penetrating in the radial direction, and the first positioning holes (not shown in the figure) are respectively provided at the positions corresponding to both ends of the pin holes 21 on the peripheral outer wall of the connector 1 . and a second positioning hole (not shown in the figure), the connecting piece (not shown in the figure) is passed through the first positioning hole and the pin hole 21 in sequence and fixed in the second positioning hole. Wherein, the first positioning hole penetrates the side wall of the inner cavity of the connector 1, and the second positioning hole may be a through hole passing through the side wall of the inner cavity of the connector 1 or a blind hole opened from the inner wall of the inner cavity toward the outer wall of the connector 1, In this embodiment, the second positioning hole is provided with an internal thread, and the front end of the connector has an external thread segment. The connector passes through the first positioning hole and the pin hole 21 in sequence and is screwed into the second positioning hole to fix the plug connector 2 in the lumen of the connector 1.

As shown in Figure 2, the connection sleeve body 3 is fixed below the plug connector 2, the outer diameter of the sleeve body 3 is larger than the diameter of the inner cavity of the connector head 1, the connection between the plug connector 2 and the sleeve body 3 forms a stepped surface, and the opening of the connector head 1 forms a step surface. The edge abuts on the step surface, so that the sleeve body 3 is more stable in force when screwing the stud.

The sleeve body 3 has a fixing groove 31 with an opening facing downward. In this embodiment, the fixing groove 31 is a circular groove, and the circular fixing groove 31 is coaxial with the inner cavity of the connector 1 , that is, the drive shaft 5 and the inner cavity of the connector 1 The cavity and the fixing groove 31 are coaxially arranged to ensure the stability of screwing when disassembling and assembling the stud. The inner diameter of the fixing groove 31 is smaller than the outer diameter of the stud 4 to be screwed. Screw on the stud 4, and the interference fit with the stud 4 to be screwed, and the clamping is firmer when rotating.

In this embodiment, the plug connector 2 and the sleeve body 3 are integrally formed, and both the plug connector 2 and the sleeve body 3 are made of rubber. When the fixing groove 31 is clamped on the stud and rotates, the thread of the stud will not be damaged. , and when the torque is too large, the stud and the rubber sleeve are overloaded and slipped to protect the stud. According to the size of the outer diameter of the stud 4 to be screwed, the sleeve body 3 and the plug connector 2 with the fixing groove 31 adapted to the stud 4 to be screwed can be replaced at any time, and the operation is simple and convenient.

The working process of the tooling for screwing the stud in the present embodiment is:

As shown in Figure 1, the stud 4 to be screwed is located on the valve body 6, the connector 1 is fixed on the drive shaft 5 of the driving device, and the plug connector 2 and the sleeve body 3 are fixed in the inner cavity of the connector 1 through the connector In the middle, the sleeve body 3 is sleeved and clamped on the stud 4 to be screwed through the fixing groove 31, and the driving device drives the sleeve body 3 to rotate so as to tighten the stud 4 to be screwed. When the appropriate torque is reached, the stud and the sleeve body 3 When it is necessary to screw with studs with different outer diameters, remove the connector from the second positioning hole, and replace the sleeve 3 that matches the outer diameter of the stud 4 to be screwed. and plug connector 2. The disassembly process is in the opposite direction of rotation to the tightening process.

As the first alternative embodiment of the first embodiment, the plug connector 2 and the sleeve body 3 can be made of other materials, such as silica gel, etc., which can be sleeved on the stud and can be clamped on the stud by interference fit with the stud. on the column.

As a second alternative implementation of Example 1, the sleeve body 3 and the plug connector 2 can all be arranged in the inner cavity of the connector 1 and match the shape of the inner cavity, and the lower end surface of the sleeve body 3 and the connector 1. The edge of the inner cavity opening is flush, and the fixing groove 31 is still set on the lower end surface of the sleeve body 3 according to the size of the outer diameter of the stud 4 to be screwed.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (10)

1. The utility model provides a revolve frock of twisting double-screw bolt which characterized in that includes:

one end of the connector (1) is connected with the driving device, and the other end of the connector is provided with an inner cavity with a downward opening; a driving shaft (5) of the driving device is coaxially arranged with the inner cavity of the connector (1);

the plug connector (2) is detachably fixed in the inner cavity;

the sleeve body (3) is fixedly connected below the plug connector (2); the diameter of the sleeve body (3) is larger than the diameter of an opening of the inner cavity of the connector (1); the sleeve body (3) is abutted against the edge of the opening of the connector (1);

the sleeve body (3) is suitable for being sleeved and clamped on a stud (4) to be screwed;

the driving device drives the connector (1) to drive the sleeve body (3) to do rotary motion so as to screw the stud (4) to be screwed.

2. The tool for screwing the stud according to claim 1, wherein the plug (2) is provided with a pin hole (21) which penetrates through in the radial direction;

the positions, corresponding to the two ends of the pin hole (21), on the circumferential outer wall surface of the connector (1) are respectively provided with a first positioning hole and a second positioning hole;

the connecting piece is sequentially arranged on the first positioning hole and the pin hole (21) in a penetrating mode and is fixed in the second positioning hole.

3. The tool for screwing a stud according to claim 2, wherein the second positioning hole is a through hole or a blind hole.

4. The tool for screwing the stud according to claim 2 or 3, wherein an internal thread is arranged in the second positioning hole; the connecting piece is in threaded fit in the second positioning hole.

5. The tool for screwing a stud according to any one of claims 1-3, wherein the sleeve body (3) is provided with a fixing groove (31) with a downward opening; the fixing groove (31) is matched with the stud (4) to be screwed and is suitable for being sleeved and clamped on the stud (4) to be screwed;

the fixing groove (31) and the inner cavity of the connector (1) are coaxially arranged.

6. Tool for screwing a stud according to claim 5, characterised in that the fixing groove (31) is a circular groove; the inner diameter of the circular groove is smaller than the outer diameter of the stud (4) to be screwed.

7. A tool for screwing a stud according to any one of claims 1 to 3, wherein the radial cross section of the plug connector (2) and the radial cross section of the inner cavity of the connector (1) are in the shape of a matched regular polygon.

8. The tool for screwing the stud according to claim 7, wherein a fixing hole (11) with an upward opening is formed in one side of the connector (1) back to the inner cavity;

the drive shaft (5) of the drive device is fixed in the fixing hole (11).

9. The tool for screwing the stud according to claim 1, wherein the plug connector (2) and the sleeve body (3) are made of rubber.

10. The tool for screwing a stud according to claim 9, wherein the plug (2) and the sleeve (3) are integrally formed.

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