Locking structure of rotating assembly and rotating workbench with locking structure

Abstract

The locking structure of the rotating assembly comprises a base, the rotating assembly and a locking assembly, the rotating assembly comprises a first rotating shaft, the first rotating shaft is rotatably arranged on the base in a penetrating mode, the upper end of the first rotating shaft protrudes out of the base, and the locking assembly is arranged on the base. The upper end of the first rotating shaft is used for fixing a workpiece or a workpiece carrier; the locking assembly comprises a rotating part, an abutting part and a balance weight part, the rotating part is rotatably arranged on the base through a second rotating shaft, the abutting part and the balance weight part are arranged on the rotating part and located on the two sides of the base respectively, and the torque of the gravity of the balance weight part to the second rotating shaft is larger than that of the gravity of the abutting part to the second rotating shaft. The counter weight drives the end, connected with the counter weight, of the rotating piece to rotate downwards, the end, connected with the abutting piece, of the rotating piece rotates upwards, so that the abutting piece is driven to abut against the side wall of the rotating assembly, the friction force between the abutting piece and the rotating assembly hinders the rotating assembly from rotating, and therefore the rotating assembly is locked.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning, in particular to a locking structure of a rotating component and a rotary workbench having the same. Background Art

[0002] To perform all-around machining on a workpiece, such as spray painting, turning, or welding on multiple surfaces, the workpiece is often positioned on a rotary table, which is then rotated to face different surfaces toward the machining process. However, current rotary tables cannot be securely fixed after rotating to a certain angle, making them prone to free rotation during machining. This reduces machining quality and hinders the improvement of yield rates. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a locking structure of a rotating assembly, which can prevent the rotating worktable from rotating.

[0004] The utility model also provides a rotary workbench with the locking structure of the rotating assembly.

[0005] According to the locking structure of the rotating assembly of the embodiment of the first aspect of the present invention, it includes: a base, a rotating assembly and a locking assembly, the rotating assembly includes a first rotating shaft, the first rotating shaft is rotatably arranged on the base, and the upper end protrudes from the base, the upper end of the first rotating shaft is used to fix the workpiece or the workpiece carrier; the locking assembly includes a rotating member, an abutment member and a counterweight member, the side of the rotating assembly is provided with a locking surface, the rotating member is rotatably arranged on the base through the second rotating shaft, the abutment member and the counterweight member are arranged on the rotating member, and are respectively located on both sides of the base, when the rotating assembly is in a locked state, the abutment member abuts the locking surface, and the torque of the gravity of the counterweight member on the second rotating shaft is greater than the torque of the gravity of the abutment member on the second rotating shaft, so that the abutment member can maintain abutment with the locking surface.

[0006] The locking structure of the rotating assembly according to the first embodiment of the present invention has at least the following beneficial effects:

[0007] By rotating the rotating part on the base and arranging the abutment and the counterweight on both sides of the base, the torque of the gravity of the counterweight on the second rotating shaft is greater than the torque of the gravity of the abutment on the second rotating shaft, so that the counterweight drives the end of the rotating part connected to the counterweight to rotate downward, and the end of the rotating part connected to the abutment rotates upward, thereby driving the abutment to move upward, so that the side wall of the abutment abuts against the side wall of the rotating assembly, and the friction between the abutment and the rotating assembly hinders the rotation of the rotating assembly, thereby locking the rotating assembly.

[0008] According to the locking structure of the rotating assembly of some embodiments of the first aspect of the present invention, the rotating assembly also includes a locking sleeve, which is located above the base and is sleeved on the first rotating shaft and can rotate with the first rotating shaft. The locking surface is set on the locking sleeve.

[0009] According to the locking structure of the rotating assembly of some embodiments of the first aspect of the present invention, a plurality of locking surfaces are provided and distributed along the circumference of the locking sleeve.

[0010] According to the locking structure of the rotating assembly of some embodiments of the first aspect of the present invention, the rotating member includes two rotating plates, which are respectively rotatably arranged on both sides of the base, and the two ends of the abutment member are connected to the two rotating plates and are horizontally arranged on one side of the base.

[0011] According to the locking structure of the rotating assembly of some embodiments of the first aspect of the present invention, the counterweight member includes a counterweight block and a fixed shaft, and the fixed shaft is respectively provided through the counterweight block and the rotating plate.

[0012] According to the locking structure of the rotating assembly of some embodiments of the first aspect of the present invention, the distance from the counterweight to the second rotating shaft is greater than the distance from the abutment to the second rotating shaft.

[0013] According to the locking structure of the rotating assembly of some embodiments of the first aspect of the present invention, the rotating assembly further includes a bearing, and the bearing is arranged between the base and the first rotating shaft.

[0014] According to some embodiments of the second aspect of the present invention, the rotary workbench includes a jacking drive mechanism, a jacking rod and a locking structure of the rotating assembly of the first aspect mentioned above. The jacking rod is located below the counterweight and is arranged on the jacking drive mechanism. The jacking drive mechanism is used to drive the jacking rod to move upward to the jacking drive member.

[0015] The rotary worktable according to some embodiments of the second aspect of the present invention has at least the following beneficial effects:

[0016] After the rotary table is rotated to a certain angle, it can be firmly fixed and will not rotate freely during the processing, so as to improve the processing quality and yield rate. In addition, when the rotary table needs to be rotated, the push rod can lift the driving part to drive the abutment part to move downward, thereby releasing the locking state of the rotary table. It can achieve the effect of locking the worktable without affecting the normal operation of the worktable and is easy to operate.

[0017] According to some embodiments of the second aspect of the present invention, the rotary workbench further includes a rotary drive assembly, which is arranged on the jacking drive mechanism, and the driving end of the rotary drive assembly is located below the first rotating shaft. The rotary drive assembly can move upward under the drive of the jacking drive mechanism so that the driving end is engaged with the first rotating shaft.

[0018] According to the rotating workbench of some embodiments of the second aspect of the present invention, a protrusion is provided on the side wall of the lower end of the first rotating shaft, a slot for accommodating the lower end of the first rotating shaft is provided on the upper part of the driving end of the rotary drive assembly, and an opening for accommodating the protrusion is provided on the side wall of the slot.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic structural diagram of the locking structure of the rotating assembly of the embodiment of the first aspect of the present utility model;

[0022] Figure 2 for Figure 1 A top view of the locking structure of the rotating assembly;

[0023] Figure 3 for Figure 2 Sectional view along section line AA;

[0024] Figure 4 This is a structural schematic diagram of a rotary workbench according to an embodiment of the second aspect of the present utility model.

[0025] Reference numerals:

[0026] Base 100; rotating assembly 200; first rotating shaft 210; protrusion 211; locking sleeve 220; bearing 230; locking assembly 300; rotating member 310; rotating plate 311; abutment member 320; counterweight member 330; counterweight block 331; fixed shaft 332; rotation drive assembly 410; slot 411; opening 412; ejector rod 420; lifting plate 430; lifting drive member 440. DETAILED DESCRIPTION

[0027] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, left, right, front, back, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0029] In the description of this utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] The following reference Figure 1 To the attached Figure 3 , describing the locking structure of the rotating assembly of the first embodiment of the utility model.

[0032] Reference Figure 1 The locking structure of the rotating assembly of this embodiment includes: a base 100, a rotating assembly 200 and a locking assembly 300. The rotating assembly 200 includes a first rotating shaft 210. The first rotating shaft 210 is rotatably installed on the base 100, and the upper end protrudes from the base 100. The upper end of the first rotating shaft 210 is used to fix the workpiece or the workpiece carrier; the locking assembly 300 includes a rotating member 310, an abutting member 320 and a counterweight member 330. The side of the rotating assembly 200 is provided with a A locking surface is provided, and the rotating member 310 is rotatably set on the base 100 through the second rotating shaft. The abutment 320 and the counterweight 330 are set on the rotating member 310 and are respectively located on both sides of the base 100. When the rotating assembly 200 is in a locked state, the abutment 320 abuts the locking surface, and the torque of the gravity of the counterweight 330 on the second rotating shaft is greater than the torque of the gravity of the abutment 320 on the second rotating shaft, so that the abutment 320 can maintain abutment with the locking surface. By rotating the rotating member 310 and setting it on the base 100, and setting the abutment 320 and the counterweight 330 on both sides of the base 100, the counterweight 330 moves downward under the action of its own gravity, thereby driving the end of the rotating member 310 connected to the counterweight 330 to rotate downward, and then the end of the rotating member 310 connected to the abutment 320 rotates upward, thereby driving the abutment 320 to move upward, so that the side wall of the abutment 320 abuts against the side wall of the rotating assembly 200, and the friction between the abutment 320 and the rotating assembly 200 hinders the rotation of the rotating assembly 200, thereby locking the rotating assembly 200.

[0033] Combine Figure 2 Specifically, a bolt is inserted through the rotating member 310 and is threadedly connected to the base 100. The smooth rod portion of the bolt is inserted through the rotating member 310, allowing the rotating member 310 to rotate relative to the bolt, and thus the rotating member 310 to rotate relative to the base 100. In this case, the bolt serves as the second rotating shaft. It is understood that a first adapter portion may be provided on the base 100, and a second adapter portion may be provided on the rotating member 310. The first adapter portion may be rotatably mounted on the second adapter portion. In this case, the second adapter portion serves as the second rotating shaft. Of course, the second adapter portion may also be rotatably mounted on the first adapter portion. In this case, the first adapter portion serves as the second rotating shaft.

[0034] It is understandable that the distance between the counterweight 330 and the second rotating shaft is greater than the distance between the abutment 320 and the second rotating shaft. Based on the principle of leverage, it is understandable that the above arrangement enables the counterweight 330 to better drive the rotating member 310 to rotate. Moreover, compared to the case where the distance between the counterweight 330 and the second rotating shaft is less than or equal to the distance between the abutment 320 and the second rotating shaft, the counterweight 330 can also achieve the effect of driving the rotating member 310 to rotate when the weight of the counterweight 330 is less than the weight of the abutment 320, thereby reducing the raw materials of the counterweight 330, saving manufacturing costs, and making the locking structure of the rotating assembly of the embodiment of the utility model more lightweight.

[0035] Specifically, the weight of the counterweight 330 is greater than the weight of the abutting member 320 . This configuration enables the abutting member 320 to abut the rotating assembly 200 more compactly, thereby enhancing the locking effect.

[0036] It is understood that the rotating assembly 200 further includes a locking sleeve 220. The locking sleeve 220 is located above the base 100 and is sleeved on the first rotating shaft 210. The locking sleeve 220 is capable of rotating with the first rotating shaft 210, and the locking surface is provided on the locking sleeve 220. The provision of the locking sleeve 220 shortens the distance between the rotating assembly 200 and the abutment member 320, making it easier for the abutment member 320 to abut against the side wall of the rotating assembly 200. It is understood that the locking sleeve 220 can be threadedly connected to the first rotating shaft 210, or it can be loosely fitted with the first rotating shaft 210.

[0037] It is understood that multiple locking surfaces are provided and distributed along the circumference of the locking sleeve 220, so that the outer contour of the cross section of the locking sleeve 220 is polygonal. This arrangement allows the locking sleeve 220 to abut against the abutment 320 in the form of a surface, making it difficult for the locking sleeve 220 to rotate relative to the abutment 320, thereby enhancing the locking effect of the locking structure. Figure 2Specifically, eight locking surfaces are provided, and the outer contour of the cross-section of the locking sleeve 220 is an octagon. When the abutment member 320 sequentially abuts against the eight locking surfaces of the locking sleeve 220, the rotating assembly 200 can be locked eight times during one rotation. This allows the eight surfaces of a workpiece positioned on the rotating assembly 200 to sequentially face the processing structure, thereby fully processing the workpiece surface. It is understood that the number of locking surfaces can be increased or decreased according to production requirements.

[0038] It is understood that the rotating member 310 includes two rotating plates 311, which are respectively rotatably arranged on both sides of the base 100, and the abutment member 320 is connected to the two rotating plates 311 at both ends and is horizontally arranged on one side of the base 100. By setting two rotating plates 311 and horizontally arranging the abutment member 320 between the two rotating plates 311, when the rotating member 310 drives the abutment member 320 to rotate, the force on the abutment member 320 is more balanced and the locking structure is more stable. Figure 2 Specifically, the screws are threadedly connected to the rotating plate 311 and the abutting member 320 in sequence to fix the abutting member 320 on the rotating plate 311. Figure 3 Specifically, the rotating plate 311 is L-shaped. When the abutting member 320 abuts the locking sleeve 220, one side of the L-shaped rotating plate 311 is perpendicular to the first rotating shaft 210, and the other side is parallel to the first rotating shaft 210. With this arrangement, when the abutting member 320 is a long plate, a flat surface of the abutting member 320 can fit against the side wall of the locking sleeve 220, thereby increasing the contact area between the abutting member 320 and the locking sleeve 220 and enhancing the locking effect.

[0039] It is understandable that the counterweight 330 includes a counterweight block 331 and a fixed shaft 332, and the fixed shaft 332 is respectively provided through the counterweight block 331 and the rotating plate 311. Specifically, the counterweight block 331 and the fixed shaft 332 are clearance-fitted or threadedly connected.

[0040] It is understood that the rotating assembly 200 further includes a bearing 230, which is disposed between the base 100 and the first rotating shaft 210. By providing the bearing 230, the first rotating shaft 210 can rotate more stably.

[0041] The following combination Figure 4The rotary table of the second embodiment of the present invention includes a lifting drive mechanism, a push rod 420 and a locking structure of the rotating assembly of the first aspect. The push rod 420 is located below the counterweight 330 and is provided on the lifting drive mechanism. The lifting drive mechanism is used to drive the push rod 420 to move upward to the lifting drive member 440. After the rotary table is rotated to a certain angle, it can be firmly fixed and will not rotate freely during the processing, so as to improve the processing quality and yield rate. Moreover, when the rotary table needs to be rotated, the push rod 420 can lift the drive member 440 to drive the abutment member 320 to move downward, thereby releasing the locking state of the rotary table. This can achieve the effect of locking the worktable without affecting the normal operation of the worktable and is easy to operate.

[0042] It can be understood that the rotating workbench of the second aspect embodiment of the utility model also includes a rotating drive component 410, which is arranged on the jacking drive mechanism, and the driving end of the rotating drive component 410 is located below the first rotating shaft 210. The rotating drive component 410 can move upward under the drive of the jacking drive mechanism so that the driving end is engaged with the first rotating shaft 210.

[0043] Combine Figure 4 Specifically, the lifting drive mechanism also includes a lifting plate 430 and a lifting drive member 440. The lifting rod 420 and the rotation drive assembly 410 are both mounted on the lifting plate 430. The lifting plate 430 is connected to the driving end of the lifting drive member 440, so that the lifting rod 420 and the rotation drive assembly 410 can move upward synchronously, allowing the unlocking state and the rotation of the rotary table to be released simultaneously, thereby improving efficiency. At the same time, the structure of the rotary table of this embodiment is more compact.

[0044] It is understood that a protrusion 211 is provided on the side wall of the lower end of the first rotating shaft 210, a slot 411 for accommodating the lower end of the first rotating shaft 210 is provided on the upper portion of the driving end of the rotary driving assembly 410, and an opening 412 for engaging the protrusion 211 is provided on the side wall of the slot 411. Figure 4 Specifically, when the rotation drive assembly 410 moves upward, the lower end of the first rotating shaft 210 is accommodated in the card slot 411, and the protrusion 211 is accommodated in the opening 412, so that the first rotating shaft 210 is clamped on the driving end of the rotation drive assembly 410. When the rotation drive assembly 410 rotates, the protrusion 211 abuts against the side wall of the opening 412 to prevent the first rotating shaft 210 and the driving end of the rotation assembly from rotating relative to each other, so that the rotation drive assembly 410 drives the first rotating shaft 210 to rotate.

[0045] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A locking structure for a rotating assembly, characterized in that: include: base; A rotating assembly, the rotating assembly comprising a first rotating shaft, the first rotating shaft being rotatably disposed through the base, with an upper end protruding from the base, the upper end of the first rotating shaft being used to fix a workpiece or a workpiece carrier; The locking assembly includes a rotating member, an abutment member and a counterweight member. A locking surface is provided on the side of the rotating assembly. The rotating member is rotatably provided on the base through a second rotating shaft. The abutment member and the counterweight member are provided on the rotating member and are respectively located on both sides of the base. When the rotating assembly is in a locked state, the abutment member abuts against the locking surface, and the torque of the gravity of the counterweight member on the second rotating shaft is greater than the torque of the gravity of the abutment member on the second rotating shaft, so that the abutment member can maintain abutment with the locking surface.

2. The locking structure of the rotating assembly according to claim 1, characterized in that: The rotating assembly further includes a locking sleeve, which is located above the base and sleeved on the first rotating shaft and can rotate along with the first rotating shaft. The locking surface is provided on the locking sleeve.

3. The locking structure of the rotating assembly according to claim 2, characterized in that: A plurality of locking surfaces are provided and distributed along the circumference of the locking sleeve.

4. The locking structure of the rotating assembly according to claim 1, characterized in that: The rotating member includes two rotating plates, which are respectively rotatably arranged on both sides of the base. The two ends of the abutting member are connected to the two rotating plates and are horizontally arranged on one side of the base.

5. The locking structure of the rotating assembly according to claim 4, characterized in that: The counterweight component includes a counterweight block and a fixed shaft, and the fixed shaft is respectively provided through the counterweight block and the rotating plate.

6. The locking structure of the rotating assembly according to any one of claims 1 to 5, characterized in that: The distance from the counterweight to the second rotating shaft is greater than the distance from the abutting member to the second rotating shaft.

7. The locking structure of the rotating assembly according to any one of claims 1 to 5, characterized in that: The rotating assembly further includes a bearing, which is arranged between the base and the first rotating shaft.

8. A rotary workbench, characterized in that: It includes a lifting drive mechanism, a push rod and a locking structure of the rotating assembly according to any one of claims 1 to 7, wherein the push rod is located below the counterweight and is arranged on the lifting drive mechanism, and the lifting drive mechanism is used to drive the push rod to move upward to lift the counterweight.

9. The rotary table according to claim 8, characterized in that: It also includes a rotary drive assembly, which is arranged on the jacking drive mechanism, and the driving end of the rotary drive assembly is located below the first rotating shaft. The rotary drive assembly can move upward under the drive of the jacking drive mechanism so that the driving end is engaged with the first rotating shaft.

10. The rotary table according to claim 9, characterized in that: A protrusion is provided on the side wall of the lower end of the first rotating shaft, a slot for accommodating the lower end of the first rotating shaft is provided on the upper portion of the driving end of the rotary driving assembly, and an opening for accommodating the protrusion is provided on the side wall of the slot.

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