Mechanism for rotating and stopping lead screw

Abstract

The utility model relates to the field of work fixtures, and discloses a mechanism for rotating and stopping a lead screw, which comprises a lead screw body, the outer wall of the lead screw body is rotatably connected with a supporting end plate, the end part of the lead screw body is provided with a toothed flange, the outer wall of the toothed flange is provided with a rotating hand wheel, and the rotating hand wheel is connected with the supporting end plate. An internal thread is formed in the inner wall of the lead screw body, the inner wall of the internal thread is in threaded connection with a limiting screw, a rotation stopping groove plate is arranged on the surface of the supporting end plate, a special-shaped groove is formed in the surface of the rotation stopping groove plate, a fixing assembly is arranged on the surface of the rotation stopping groove plate, and the fixing assembly comprises a screw hole. The inner wall of the screw hole is in threaded connection with a bolt, and the outer wall of the bolt is in threaded connection with a nut. According to the utility model, the supporting end plate, the toothed flange, the rotating hand wheel and other structures are arranged, so that the screw rod is prevented from being in a narrow environment and needing to be stopped from rotating by using an external tool, and the operation convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tool fixture, especially a mechanism for screw rotation and rotation stopping. BACKGROUND

[0002] Under the background of modern industrial automation, many devices use trapezoidal screw or other forms of screw, which are used for workbench screw feeding or applied to tool fixtures. Left and right screw is generally used in tool fixtures to change the distance between tool clamping blocks by rotating the screw, so as to realize flexible adjustment and meet the function of multi-product production.

[0003] In most cases of tool fixture use, the current position needs to be locked after the distance is adjusted. The screw rotation stopping method in the past usually adopts the form of clamping block locking screw or latch, and the form of clamping block also needs to use tools such as inner hex wrench.

[0004] The existing screw rotation stopping method usually needs to use tools, but in some narrow scenes, using tools to lock will cause inconvenience in operation and reduce the convenience of operation. Therefore, a mechanism for screw rotation and rotation stopping is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a mechanism for screw rotation and rotation stopping, which aims to improve the problem that the mechanism for screw rotation and rotation stopping in the prior art lacks the function of providing rotation and rotation stopping for the screw in a narrow working surface, resulting in the need to use tools and reducing the operation convenience.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a mechanism for screw rotation and rotation stopping, comprising a screw body, a support end plate is rotatably connected to the outer wall of the screw body, a toothed flange is arranged at the end of the screw body, a rotating hand wheel is arranged on the outer wall of the toothed flange, an internal thread is formed in the inner wall of the screw body, a limiting screw is threadedly connected to the inner wall of the internal thread, a rotation stopping groove plate is arranged on the surface of the support end plate, a special-shaped groove is formed in the surface of the rotation stopping groove plate, and a fixing assembly is arranged on the surface of the rotation stopping groove plate.

[0007] Further description of the above technical scheme:

[0008] One end of the screw body close to the internal thread penetrates through the support end plate.

[0009] Further description of the above technical scheme:

[0010] The inner wall of the rotating hand wheel is inserted into the outer wall of the toothed flange.

[0011] As a further description of the above technical solution:

[0012] The fixing assembly includes a screw hole, an inner wall of the screw hole is threadedly connected to a bolt, and an outer wall of the bolt is threadedly connected to a nut.

[0013] As a further description of the above technical solution:

[0014] The screw holes are arranged on the outer wall of the supporting end plate.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the supporting end plate is provided with an insertion hole, the surface of the nut is penetrated with a through hole, the inner wall of the through hole is provided with a limiting rod, the outer wall of the limiting rod is fixedly connected to a mounting plate, the surface of the mounting plate is penetrated with an avoidance hole, and the outer wall of the mounting plate is fixedly connected to a handle.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the limiting rod is matched with the inner wall of the through hole, and the outer wall of the limiting rod is matched with the inner wall of the insertion hole.

[0019] As a further description of the above technical solution:

[0020] The avoidance hole is sleeved on the outer wall of the bolt.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, by providing a supporting end plate, a toothed flange, a rotating handwheel, a limit screw, and a special-shaped groove with a fixing assembly, the screw body can be provided with the function of rotation and locking, so that the screw does not need to be stopped by external tools in a narrow environment, thereby improving the convenience of operation.

[0023] 2. In the utility model, the nut can be limited by providing a socket, a through hole, a limit rod, a mounting plate, an avoidance hole and a handle, thereby reducing the problem of reduced firmness of the anti-rotation groove plate fixed to the support end plate caused by the vibration of the rotation of the screw body or the vibration of the push-pull rotating handwheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an exploded front view of the main structure of a mechanism for rotating and stopping a screw proposed in the present invention;

[0025] Figure 2 The utility model proposes a mechanism for screw rotation and anti-rotation Figure 1 A magnified schematic diagram of area A in the middle;

[0026] Figure 3 This is an exploded side view of the main structure of a mechanism for rotating and stopping a screw proposed in the present invention;

[0027] Figure 4 The utility model proposes a mechanism for screw rotation and anti-rotation Figure 3 A magnified schematic diagram of area B in the middle;

[0028] Figure 5 The utility model proposes a mechanism for screw rotation and anti-rotation Figure 3 Enlarged schematic diagram of area C in the middle.

[0029] Legend:

[0030] 1. Screw body; 2. Support end plate; 3. Toothed flange; 4. Rotating handwheel; 5. Limit screw; 6. Anti-rotation groove plate; 7. Special-shaped groove; 8. Screw hole; 9. Bolt; 10. Nut; 11. Internal thread; 12. Socket; 13. Through hole; 14. Limit rod; 15. Mounting plate; 16. Avoidance hole; 17. Handle. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a mechanism for rotating and stopping a screw, comprising a screw body 1, the outer wall of the screw body 1 is rotatably connected to a support end plate 2, the end of the screw body 1 is provided with a toothed flange 3, the surface of the toothed flange 3 is provided with flange teeth, and the tooth shape of the flange teeth is designed to be a guide and a barb shape, the outer wall of the toothed flange 3 is provided with a rotating handwheel 4, the inner wall of the screw body 1 is provided with an internal thread 11, and a notch is provided on the outer wall of one end of the screw body 1 close to the internal thread 11, and the inner wall of the internal thread 11 is threadedly connected to a limiting screw 5, and the surface of the support end plate 2 is provided with a stop groove plate 6, the surface of the stop groove plate 6 is provided with a special-shaped groove 7, and the surface of the stop groove plate 6 is provided with a fixing component.

[0033] Reference Figure 3 - Figure 5The end of the screw body 1 close to the internal thread 11 passes through the supporting end plate 2, the inner wall of the rotating handwheel 4 is plugged into the outer wall of the toothed flange 3, and the toothed flange 3 is pressed into the interior of the rotating handwheel 4 to form a whole. The fixing component includes a screw hole 8, and the screw hole 8 is opened on the outer wall of the supporting end plate 2. The inner wall of the screw hole 8 is threadedly connected with a bolt 9, and the outer wall of the bolt 9 is threadedly connected with a nut 10. The outer wall of the bolt 9 is threadedly connected to the inner wall of the anti-rotation groove plate 6. After the bolt 9 is screwed into the anti-rotation groove plate 6 to connect it with the screw hole 8, the anti-rotation groove plate 6 can be installed on the supporting end plate 2.

[0034] Reference Figure 1 - Figure 2 The outer wall of the supporting end plate 2 is provided with a socket 12, and a through hole 13 is formed on the surface of the nut 10. A limit rod 14 is provided on the inner wall of the through hole 13. The outer wall of the limit rod 14 is fixedly connected with a mounting plate 15. The surface of the mounting plate 15 is provided with an avoidance hole 16. The avoidance hole 16 is sleeved on the outer wall of the bolt 9. The opening of the avoidance hole 16 can avoid the bolt 9 so that the bolt 9 does not hinder the mounting plate 15. The outer wall of the mounting plate 15 is fixedly connected with a handle 17, which is convenient for the operator to hold Move the mounting plate 15 away from the anti-rotation groove plate 6 or fit it with the nut 10, the outer wall of the limiting rod 14 is adapted to the inner wall of the through hole 13, the outer wall of the limiting rod 14 is adapted to the inner wall of the insertion hole 12, and the limiting rod 14 is set as a magnet. After the limiting rod 14 is inserted into the through hole 13 and the insertion hole 12, it can generate magnetic attraction between the support end plate 2 and the anti-rotation groove plate 6, thereby avoiding the vibration generated by the screw body 1 during rotation from affecting the anti-rotation groove plate 6, and increasing the fixity of the bolt 9 and the nut 10 on the installation of the support end plate 2 and the anti-rotation groove plate 6.

[0035] Working principle: Align the anti-rotation groove plate 6 with the support end plate 2, the screw body 1 will pass through the hole at the center of the anti-rotation groove plate 6, screw the bolt 9 into the anti-rotation groove plate 6 and the support end plate 2, then put the nut 10 on the bolt 9 and rotate it to fix the anti-rotation groove plate 6 on the support end plate 2, then press the toothed flange 3 into the rotating handwheel 4 so that the two form a whole, align the flange teeth of the toothed flange 3 with the inside of the special-shaped groove 7 and insert it until the flange teeth are embedded in the notch of the screw body 1, and finally limit The screw 5 is screwed into the internal thread 11. After the installation is completed, when it is necessary to control the rotation of the screw body 1 by rotating the handwheel 4, force is applied outward to the rotating handwheel 4. After the rotating handwheel 4 drives the toothed flange 3 to disengage the special-shaped groove 7, the screw body 1 can be driven to rotate by rotating the handwheel 4. Finally, the flange teeth are aligned with the special-shaped groove 7, and then the rotating handwheel 4 is pushed to make the flange teeth fit into the special-shaped groove 7. After the flange teeth are locked, the hook position hooks the back of the anti-rotation groove plate 6 to lock the screw body 1.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A mechanism for rotating and stopping a screw, comprising a screw body (1), characterized in that: The outer wall of the screw body (1) is rotatably connected to a support end plate (2), the end of the screw body (1) is provided with a toothed flange (3), the outer wall of the toothed flange (3) is provided with a rotating handwheel (4), the inner wall of the screw body (1) is provided with an internal thread (11), the inner wall of the internal thread (11) is threadedly connected to a limiting screw (5), the surface of the support end plate (2) is provided with a stop groove plate (6), the surface of the stop groove plate (6) is provided with a special-shaped groove (7), and the surface of the stop groove plate (6) is provided with a fixing component.

2. A mechanism for screw rotation and anti-rotation according to claim 1, characterized in that: One end of the screw rod body (1) close to the internal thread (11) passes through the supporting end plate (2).

3. The mechanism for rotating and stopping a screw according to claim 1, characterized in that: The inner wall of the rotating hand wheel (4) is plugged into the outer wall of the toothed flange (3).

4. The mechanism for rotating and stopping a screw according to claim 1, characterized in that: The fixing assembly comprises a screw hole (8), the inner wall of the screw hole (8) is threadedly connected to a bolt (9), and the outer wall of the bolt (9) is threadedly connected to a nut (10).

5. The mechanism for rotating and stopping a screw according to claim 4, characterized in that: The screw holes (8) are provided on the outer wall of the supporting end plate (2).

6. The mechanism for rotating and stopping a screw according to claim 4, characterized in that: The outer wall of the supporting end plate (2) is provided with an insertion hole (12), the surface of the nut (10) is provided with a through hole (13), the inner wall of the through hole (13) is provided with a limiting rod (14), the outer wall of the limiting rod (14) is fixedly connected to a mounting plate (15), the surface of the mounting plate (15) is provided with an avoidance hole (16), and the outer wall of the mounting plate (15) is fixedly connected to a handle (17).

7. The mechanism for rotating and stopping a screw according to claim 6, characterized in that: The outer wall of the limiting rod (14) is matched with the inner wall of the through hole (13), and the outer wall of the limiting rod (14) is matched with the inner wall of the insertion hole (12).

8. The mechanism for rotating and stopping a screw according to claim 6, characterized in that: The avoidance hole (16) is sleeved on the outer wall of the bolt (9).

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