CN110860612A

CN110860612A - Rotary lock and novel U-shaped support assembly thereof

Info

Publication number: CN110860612A
Application number: CN201911199920.XA
Authority: CN
Inventors: 龙晓斌; ***; 龙川
Original assignee: Oms Machinery Co Ltd
Current assignee: Oms Machinery Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-03-06

Abstract

The invention discloses a rotary lock and a novel U-shaped support assembly thereof, wherein the rotary lock comprises a rotary lock body with an opening in the radial direction, a channel for a workpiece to pass through is arranged in the axial direction of the rotary lock body, the opening is communicated with the channel, and teeth are arranged on the outer surface of the rotary lock body. Therefore, the invention has the advantages of no interference to adjacent components, no damage to the workpiece, thicker thickness and larger contact area with the workpiece.

Description

Rotary lock and novel U-shaped support assembly thereof

Technical Field

The invention relates to the field of U-shaped support assemblies, in particular to a rotary lock and a novel U-shaped support assembly thereof.

Background

The invention relates to a U-shaped support assembly for a pipe expander, as shown in fig. 1-2, which is a U-shaped support assembly in the prior art and mainly comprises a U-shaped support 100, a clamping jaw 200, a sliding block 300, a spring 400 and a push rod 500, wherein the clamping jaw 200 is mounted on the U-shaped support 100 and can rotate in the U-shaped support 100 to be opened or closed to clamp a workpiece, the spring 400 is arranged on the push rod 500 in a penetrating manner, the sliding block 300 is arranged at the top end of the push rod 500, the sliding block 300 can push the clamping jaw 200 to rotate to drive the push rod 500 to make the push rod 500 move upwards, the push rod 500 pushes the sliding block 300 to slide upwards, so as to push the clamping jaw 200 to rotate clockwise, the clamping jaw 200 is opened (as shown in fig. 1), at the time, the workpiece is clamped, after the workpiece is clamped, the spring 400 is reset, at the push rod 500 moves downwards, the push rod 500, the jaws 200 are closed, clamping the workpiece.

However, the U-shaped bracket assembly in the prior art has the following disadvantages in use due to the design defects: firstly, when the clamping jaws are opened, the clamping jaws are deviated from the original positions and are expanded outwards, so that the area involved by the stroke of the clamping jaws when the clamping jaws are opened and the stroke of the clamping jaws on the lock is large, and the clamping jaws protrude out of the U-shaped seat (as can be seen from figure 1), the structure is not compact, and because the distance between adjacent U-shaped seat components is smaller in the existing U-shaped seat components, the parts of the clamping jaws protruding out of the U-shaped seat interfere with the work of the adjacent U-shaped seat components when the clamping jaws are opened, and in addition, the parts of the clamping jaws protruding out of the U-shaped seat interfere with the workpiece when the clamping jaws are opened; secondly, the clamping jaw is a hook-type clamping jaw, as can be seen from fig. 2, when the clamping jaw is locked, the tail end position of the hook part of the clamping jaw is located near the central line of the U-shaped bracket, so that the contact area between the clamping jaw and a workpiece is very small when the clamping jaw is locked, and in the tube expanding process, the force applied to the workpiece is relatively large, so that the workpiece is easily clamped and damaged due to the fact that the contact area between the clamping jaw and the workpiece is too small when the clamping jaw is locked, the workpiece is seriously slipped from the clamping jaw, and the tube expanding effect is seriously affected. Thirdly, the hook part of the clamping jaw is thin, easy to deform and short in service life.

Disclosure of Invention

The invention aims to provide a thicker rotary lock which does not cause interference to adjacent components, does not cause damage to a workpiece, and has larger contact area with the workpiece.

The invention also provides a novel U-shaped support assembly which does not interfere with adjacent assemblies, does not damage workpieces, has larger contact area with the workpieces and is thicker.

In order to achieve the purpose, the invention adopts the following technical scheme: the rotary lock comprises a rotary lock body with a radial opening, wherein a channel for a workpiece to pass through is axially arranged on the rotary lock body, the opening is communicated with the channel, and teeth are arranged on the outer surface of the rotary lock body.

As an improvement of the invention, the channel of the rotary lock body is internally provided with a first combination surface used for combining with a workpiece, and the shape of the first combination surface is matched with that of the surface of the workpiece, so that the first combination surface and the surface of the workpiece can be combined in a matching way.

The invention also provides a novel U-shaped support assembly which comprises an installation frame, the rotary lock and a driving wheel, wherein the rotary lock and the driving wheel are arranged at the installation frame and can rotate at the installation frame, the rotary lock is meshed with the driving wheel, and when the driving wheel is driven, the driving wheel can drive the rotary lock to rotate.

As an improvement of the invention, a U-shaped bracket for placing a workpiece and a guide rail are arranged in the mounting frame, a sliding groove which is correspondingly matched with the guide rail is arranged on the outer surface of the rotary lock, and the rotary lock can rotate in the mounting frame through the matching of the sliding groove and the guide rail.

As an improvement of the invention, the rotary lock further comprises a limiting structure, a limiting groove is formed in the guide rail, a limiting protrusion correspondingly matched with the limiting groove is arranged at the sliding groove, and when the rotary lock rotates until the limiting protrusion enters the limiting groove, the rotary lock stops rotating to realize limiting.

As an improvement of the invention, the driving wheel is directly driven by the motor.

As an improvement of the invention, the driving wheel is indirectly driven through a connecting rod structure.

As an improvement of the invention, the connecting rod structure comprises a sliding block and a connecting rod, one end of the connecting rod is connected with the driving wheel, and the other end of the connecting rod is connected with the sliding block.

As an improvement of the invention, the device also comprises a first ejector rod and a first return spring which are arranged on the mounting frame, the slide block is fixed at the top end of the first ejector rod, and the first return spring is arranged on the first ejector rod in a penetrating way.

As an improvement of the invention, the device also comprises a second ejector rod and a second return spring, wherein the second ejector rod is positioned at the lower end of the first ejector rod and is connected with the first ejector rod, and the second return spring is arranged on the second ejector rod in a penetrating way.

The rotary lock comprises a rotary lock body with an opening in the radial direction, a channel for a workpiece to pass through is axially arranged on the rotary lock body, the opening is communicated with the channel, and teeth are arranged on the outer surface of the rotary lock body. The rotary lock rotates anticlockwise, and is in an open state when the opening of the rotary lock is upward; when the workpiece is clamped in the channel of the rotary lock, the rotary lock is driven to rotate clockwise until the opening of the rotary lock rotates to a non-upward state, and the rotary lock is locked, so that the workpiece is locked. When the rotary lock is locked or unlocked, two sides of the rotary lock cannot protrude out of the volume of the rotary lock, and compared with the prior art, the rotary lock cannot interfere with the work of adjacent assemblies and workpieces in a locking or unlocking state, and cannot damage the workpieces due to interference of the workpieces; in addition, compared with the hook-type lock in the prior art, the rotary lock has the advantages that the contact area between the rotary lock and the workpiece is larger when the workpiece is locked, so that the workpiece cannot be easily crushed, and the rotary lock is thicker, is less prone to deformation and is more durable. Therefore, the invention has the advantages of no interference to adjacent components, no damage to the workpiece, thicker thickness and larger contact area with the workpiece.

Drawings

FIG. 1 is a schematic structural diagram of a U-shaped bracket assembly in an open state in the prior art;

FIG. 2 is a schematic structural diagram of a U-shaped bracket assembly in a locked state in the prior art;

FIG. 3 is a schematic perspective view of the rotary lock of the present invention;

FIG. 4 is a schematic plan view of the structure of FIG. 3;

FIG. 5 is a schematic cross-sectional view taken along the line A-A in FIG. 4;

FIG. 6 is a schematic plan view of a portion of the structure of a workpiece;

FIG. 7 is a cross-sectional view of the workpiece of FIG. 5 after it has been locked;

FIG. 8 is a cross-sectional view of a first embodiment of the novel U-bracket assembly;

FIG. 9 is a schematic view of the rotary lock of FIG. 8 after it has been locked;

FIG. 10 is a plan view of a second embodiment of the novel U-bracket assembly;

FIG. 11 is a cross-sectional view taken along line B-B of FIG. 10 with the rotary lock in a locked condition;

FIG. 12 is a schematic view of the rotary lock of FIG. 11 in an open condition;

fig. 13 is a schematic perspective exploded view of fig. 10.

Detailed Description

The invention will be further described with reference to the accompanying drawings and the detailed description below:

referring to fig. 3 to 7, fig. 3 to 7 disclose a rotary lock, which includes a rotary lock body 1 having an opening 11 formed in a radial direction, a passage 13 for a workpiece 900 to pass through is formed in an axial direction I of the rotary lock body 1, the opening 11 is communicated with the passage 13, and teeth 12 are formed on an outer surface of the rotary lock body 1. In this embodiment, during specific use, the rotation lock is matched with a base (not visible in the figure) capable of fixing the workpiece, the rotation lock rotates anticlockwise, when the opening 11 of the rotation lock faces upwards, the rotation lock is in an open state, and when the workpiece 900 is clamped in the channel 13 of the rotation lock, the rotation lock is driven to rotate clockwise until the opening 11 of the rotation lock rotates to a non-upward state, and at this time, the rotation lock is matched with the base capable of fixing the workpiece to lock the workpiece 900, and the rotation lock is locked, so that the workpiece 900 is locked. According to the invention, when the rotary lock is locked or unlocked, two sides of the rotary lock can not protrude out of the volume of the rotary lock, and compared with the prior art, the rotary lock can not interfere with the work of adjacent assemblies, can not interfere with adjacent workpieces and can not damage the workpieces due to interference with the adjacent workpieces no matter the rotary lock is locked or unlocked; in addition, compared with the hook-type lock in the prior art, the rotary lock in the invention has larger contact area with the workpiece 900 when locking the workpiece 900, so that the workpiece 900 is not easily crushed, and the rotary lock in the invention is thicker, is not easy to deform and is more durable.

In the present invention, it is preferable that the passage 13 of the rotary lock body 1 has a first combining surface 14 for combining with the workpiece 900, and the shape of the first combining surface 14 matches with the surface of the workpiece 900, so that the first combining surface 14 can be combined with the surface of the workpiece 900 in a matching manner. Specifically, in this embodiment, the surface of the workpiece 900 has a second bonding surface 15 (specifically, as shown in fig. 5 and 6) for bonding with the first bonding surface 14, and the shapes of the first bonding surface 14 and the second bonding surface 15 are matched, so that the first bonding surface 14 and the second bonding surface 15 can be bonded in a matching manner; in this embodiment, the workpiece 900 is specifically a U-shaped pipe, but of course, other workpieces may be used, and the first combining surface 14 in the channel 13 of the rotary lock body 1 only needs to match with the surface of the workpiece to be combined with the first combining surface, so the first combining surface 14 in the channel 13 of the rotary lock body 1 may be configured into different shapes according to different workpiece surfaces, and this embodiment is only one of the embodiments. The purpose of this arrangement is that, after the workpiece 900 is placed in the channel 13 of the rotary lock, the matching design of the first combining surface 14 and the second combining surface 15 enables the inner wall of the channel 13 of the rotary lock to be more attached to the outer wall of the workpiece 900 (as shown in fig. 7), so as to achieve the purpose of preventing the outer wall of the workpiece 900 from being crushed, and to better protect the workpiece 900.

Referring to fig. 8 to 9, fig. 8 to 9 disclose a first embodiment of a novel U-shaped support assembly, which includes a mounting frame 7, the above-mentioned rotary lock, and a driving wheel 2, wherein the rotary lock and the driving wheel 2 are disposed at the mounting frame 7 and can rotate at the mounting frame 7, driving teeth 22 are disposed on the periphery of the driving wheel 2, teeth 12 of the rotary lock are engaged with the driving teeth 22, and when the driving wheel 2 is driven, the driving wheel 2 can drive the rotary lock to rotate. In this embodiment, the driving wheel 2 is directly driven by a motor (not shown in the figure), in this embodiment, the driving wheel 2 is provided with a shaft 20, and an output shaft of the motor is connected with the shaft 20 to drive the driving wheel 2 to rotate, so as to drive the rotating lock engaged with the driving wheel 2 to rotate, thereby realizing the locking or unlocking function. FIG. 6 is a schematic view of the novel U-bracket assembly with the rotary lock in an open position; fig. 7 is a schematic view of the locking state of the rotary lock in the novel U-shaped bracket assembly.

Further, in the present invention, a U-bracket 70 for placing the workpiece 900 and a guide rail (not visible in the drawing) are disposed in the mounting rack 7, and a sliding groove 16 corresponding to the guide rail is disposed on an outer surface of the rotary lock, so that the rotary lock can rotate in the mounting rack 7 by the cooperation of the sliding groove 16 and the guide rail. This has the advantage that the rotary lock can rotate more smoothly within the mounting 7.

In the present invention, preferably, the present invention further includes a limiting structure, the guide rail is provided with a limiting groove 72, specifically, the limiting groove 72 is provided at one end of the guide rail, the sliding groove 16 is provided with a limiting protrusion 17 correspondingly matched with the limiting groove 72, when the rotary lock rotates until the limiting protrusion 17 enters the limiting groove 72, the rotary lock stops rotating to achieve limiting, and the purpose of the setting is that, as shown in fig. 6, when the rotary lock rotates until the limiting protrusion 17 enters the limiting groove 72, the purpose of preventing the rotary lock from continuing rotating can be achieved through the limiting structure, and at this time, the best state that the opening 11 faces upward can be maintained, which is beneficial to placing the workpiece 900.

The new U-shaped bracket assembly of the present invention is further provided with a second embodiment (as shown in fig. 10 to 13), which is substantially the same as the first embodiment, except that the driving wheel 2 is indirectly driven through a link structure. Specifically, in this embodiment, the link structure includes a slider 4 and a link 5, one end of the link 5 is connected to the driving wheel 2, and the other end of the link 5 is connected to the slider 4.

In the invention, further, the device also comprises a first ejector rod 81 and a first return spring 31 which are arranged on the mounting rack 1, the slide block 4 is fixed at the top end of the first ejector rod 81, and the first return spring 31 is arranged on the first ejector rod 21 in a penetrating manner; the purpose of the first return spring 31 is to realize automatic return of the first push rod 81 when the cylinder contracts.

In this embodiment, when in use, the first top rod 81 is driven by a power source to move, the power source drives the first top rod 81 to move upwards, the first top rod 81 moves upwards and drives the sliding block 4 to slide upwards, the connecting rod 5 also moves upwards under the action of the sliding block 4, so as to push the driving wheel 2 to rotate clockwise, because the driving wheel 2 is engaged with the rotary lock, the rotary lock rotates counterclockwise, so that the opening 11 of the rotary lock faces upwards, the rotary lock is in an open state (as shown in fig. 12), the workpiece 900 enters the U-shaped bracket 70 and falls into the opening 11 of the rotary lock, after the workpiece 900 is clamped, the first return spring 31 is reset, the first top rod 81 moves downwards, so as to drive the sliding block 4 and the connecting rod 5 to move downwards, the driving wheel 2 rotates counterclockwise under the action of the connecting rod 5, the rotary lock rotates clockwise, and rotates until the opening 11 of the rotary lock does not face upwards, thereby allowing the rotational lock to assume a locked condition and thereby lock the workpiece 900 (as shown in fig. 11). In the invention, when the driving wheel 2 drives the rotary lock to be opened or locked, the driving wheel 2 and the rotary lock do not protrude out of the mounting frame 7, and the rotary lock rotates in the mounting frame 7.

In this embodiment, specifically, the device further includes a second push rod 82 and a second return spring 32, the second push rod 82 is located at the lower end of the first push rod 81 and is connected with the first push rod 81, the second return spring 32 is disposed on the second push rod 82 in a penetrating manner, the second push rod 82 and the second return spring 32 play a role in buffering, and in this embodiment, the power source pushes the second push rod 82, so as to push the first push rod 82 to move.

In the present invention, it is preferable that the mounting device further includes a mounting pin 9, the mounting pin 9 is disposed on the mounting bracket 7, and the mounting pin 9 is used for fixing the mounting bracket 7.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.

Claims

1. A rotary lock characterized by: including radially being equipped with rotatory lock body (1) of opening (11), the axial of rotatory lock body (1) is equipped with passageway (13) that are used for supplying work piece (900) to pass, opening (11) and passageway (13) intercommunication are equipped with tooth (12) at the surface of rotatory lock body (1).

2. A rotary lock according to claim 1, wherein the passage (13) of the rotary lock body (1) has a first engagement surface (14) therein for engagement with a workpiece (900), the first engagement surface (14) and the workpiece (900) surface being shaped to allow mating engagement of the first engagement surface (14) and the workpiece (900) surface.

3. A novel U holds in palm subassembly, characterized in that, including mounting bracket (7), claim 1 or claim 2 rotatory lock to and action wheel (2), rotatory lock and action wheel (2) set up in mounting bracket (7) department and can rotate in mounting bracket (7) department, rotatory lock meshes with action wheel (2) mutually, and when drive action wheel (2), action wheel (2) can drive rotatory lock and rotate.

4. The novel U-shaped support assembly according to claim 3, characterized in that a U-shaped support (70) for placing a workpiece (900) and a guide rail are arranged in the mounting frame (7), the outer surface of the rotary lock is provided with a matching sliding groove (16) corresponding to the guide rail, and the rotary lock can rotate in the mounting frame (7) through the matching of the sliding groove (16) and the guide rail.

5. The novel U-shaped bracket assembly according to claim 4, further comprising a limiting structure, wherein a limiting groove (72) is formed at the guide rail, a limiting protrusion (17) correspondingly matched with the limiting groove (72) is formed at the sliding groove (16), and when the rotary lock rotates until the limiting protrusion (17) enters the limiting groove (72), the rotary lock stops rotating, so that limiting is realized.

6. A new U-shaped holder assembly according to claim 3, 4 or 5, characterized in that the driving wheel (2) is directly driven by a motor.

7. A new U-shaped bracket assembly according to claim 3, 4 or 5, characterized in that the driving wheel (2) is indirectly driven by a link structure.

8. The novel U-shaped support assembly according to claim 7, wherein the connecting rod structure comprises a sliding block (4) and a connecting rod (5), one end of the connecting rod (5) is connected with the driving wheel (2), and the other end of the connecting rod (5) is connected with the sliding block (4).

9. The novel U-shaped support assembly according to claim 8, further comprising a first top rod (81) and a first return spring (31) which are arranged on the mounting frame (1), wherein the sliding block (4) is fixed at the top end of the first top rod (81), and the first return spring (31) is arranged on the first top rod (21) in a penetrating manner.

10. The novel U-shaped support assembly according to claim 9, further comprising a second top rod (82) and a second return spring (32), wherein the second top rod (82) is located at the lower end of the first top rod (81) and connected with the first top rod (81), and the second return spring (32) is arranged on the second top rod (82) in a penetrating manner.