Universal product assembly rotation device

Abstract

The application relates to the technical field of intelligent assembly, and particularly provides a general product assembly rotating device, which comprises a limiting shell, the limiting shell is a cavity with an annular shape and an internal hollow structure; a wave-shaped ring is rotationally connected in the limiting shell, one end of the wave-shaped ring is provided with a wave-shaped end part, the wave-shaped end part is a wave-shaped surface which periodically changes around one circle of the wave-shaped ring; a plurality of power telescopic groups are fixedly connected to the limiting shell, the end part of an output end in the power telescopic group is matched with the wave-shaped end part, and the telescopic process of the output end of the plurality of power telescopic groups drives the wave-shaped ring to rotate; a bearing ring is fixedly connected to the wave-shaped ring, the bearing ring penetrates through the side wall of the limiting shell and is provided with a bearing part outside the limiting shell, and the bearing part is used for mounting a fixing tool; the application has less mechanical cooperation, less abrasion, greater bearing capacity and can be adapted to heavy workpieces.

Description

Technical Field

[0001] This invention relates to the field of intelligent assembly technology, and in particular to a general-purpose product assembly rotary device. Background Technology

[0002] During product assembly, some production lines require rotating the product to facilitate assembly. Currently, the product rotation device is achieved through a rotating platform, which rotates the product to change direction.

[0003] Current rotary platforms typically use worm gear or gear transmission devices to drive the worktable on them. However, this method requires a gear or worm gear structure, where a small gear drives a large, heavy workpiece, leading to rapid gear wear and frequent maintenance, thus increasing operating costs for businesses. Therefore, this application proposes a universal product assembly rotary device. Summary of the Invention

[0004] The purpose of this invention is to provide a universal product assembly rotary device to solve the problem of high wear and frequent maintenance required by current rotary devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A general-purpose product assembly rotating device, the rotating device comprising:

[0007] A limiting shell, wherein the limiting shell is an annular cavity with a hollow interior;

[0008] A waveform ring is rotatably connected to the limiting housing. One end of the waveform ring is provided with a waveform end, which is a waveform surface that changes periodically around the waveform ring.

[0009] Several power telescopic groups are fixedly connected to the limiting shell. The output end of the power telescopic group cooperates with the waveform end. During the extension and retraction of the output end of the several power telescopic groups, the waveform ring is driven to rotate.

[0010] A bearing ring is fixedly connected to the waveform ring. The bearing ring passes through the side wall of the limiting housing and has a bearing part on the outside of the limiting housing. The bearing part is used to install and fix the fixture.

[0011] Furthermore, the end of the waveform is a wave-shaped surface composed of several peaks and troughs, wherein the vertical distance between the peaks and troughs is constant, and the angle formed between adjacent peaks and troughs and the center of the waveform ring is constant.

[0012] Furthermore, the power telescopic assembly is provided with several telescopic structures. During the rotation of the waveform ring, the output end of at least one telescopic structure in the power telescopic assembly is located on the inclined surface where the crest and trough transition, and the direction of the component force of the pressure exerted by the output end of the telescopic structure on the inclined surface on the rotation plane of the waveform ring is the same as the rotation direction of the waveform ring.

[0013] Furthermore, the power telescopic assembly is provided with four telescopic structures, namely a first telescopic part, a second telescopic part, a third telescopic part, and a fourth telescopic part, which are arranged in sequence.

[0014] Let A1 be the angle formed by the midpoints of the telescopic ends of the first and second telescopic parts and the center of the waveform ring; let A2 be the angle formed by the adjacent crests and troughs and the center of the waveform ring; let A3 be the angle formed by the midpoints of the telescopic ends of the second and third telescopic parts and the center of the waveform ring; and let A4 be the angle formed by the midpoints of the telescopic ends of the third and fourth telescopic parts and the center of the waveform ring. Then A1 = A2 = A4, A2 <A3<2A2。

[0015] Furthermore, the rotating device also includes:

[0016] A position acquisition component is used to acquire the rotation angle of the waveform ring in real time.

[0017] Furthermore, the rotation angle of the waveform ring is obtained through the following steps:

[0018] The number of times the output end of the telescopic structure within the power telescopic group completes its telescopic movement, as well as the telescopic state and extension distance of the output end of the telescopic structure within the power telescopic group at this time, are obtained.

[0019] The rotation angle of the waveform ring is calculated based on the number of expansions, the expansion state, and the expansion distance. The rotation angle of the waveform ring is calculated based on formula (1):

[0020] ;Formula (1)

[0021] Where A is the rotation angle of the waveform ring. When the telescopic structure completes one extension or retraction, the rotation angle of the waveform loop is given, and m is the number of complete extensions or retractions at the output end of the telescopic structure. This represents the functional relationship between the elongation distance of the output end of the telescopic structure and the rotation angle of the waveform ring during the elongation process. This represents the functional relationship between the extension distance of the output end of the telescopic structure during retraction and the rotation angle of the waveform loop. and It was obtained from actual measurements.

[0022] Furthermore, the telescopic structure is a hydraulic cylinder, and the position acquisition component is a flow sensor arranged on the oil supply line of the hydraulic cylinder.

[0023] Furthermore, the limiting housing is provided with lubricating oil.

[0024] Furthermore, the rotating device also includes:

[0025] An initial end detection unit is used to locate the position of the waveform ring when the waveform ring is reset. The initial end detection unit is installed on the limiting housing and the bearing ring.

[0026] Furthermore, the rotating device also includes:

[0027] Bottom support, the power telescopic assembly is fixedly connected to the bottom support, the bottom support is ring-shaped.

[0028] In summary, the present invention has the following advantages compared with the prior art:

[0029] The universal product assembly rotating device disclosed in this invention drives a wave ring with a wave-shaped end to rotate continuously through the continuous extension and retraction of the output end of the power telescopic group, thereby driving the workpiece to rotate. Compared with the traditional gear transmission / worm gear transmission mechanism, the present invention has less mechanical contact, less wear, and greater load-bearing capacity, and can be adapted to heavier workpieces. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the general-purpose product assembly rotating device disclosed in an embodiment of the present invention.

[0031] Figure 2 for Figure 1 A magnified view of a section at point I.

[0032] Figure 3 This is a front view of the general-purpose product assembly rotating device disclosed in an embodiment of the present invention.

[0033] Figure 4 for Figure 3 Full cross-section of AA.

[0034] Figure 5 for Figure 4 A magnified view of section II in the middle.

[0035] Figure 6 This is a schematic diagram of the internal structure of the limiting housing of the general-purpose product assembly rotation device disclosed in an embodiment of the present invention.

[0036] Figure 7This is a schematic diagram of the first state of the lifting cylinder and the wave ring in the general product assembly rotating device disclosed in the embodiment of the present invention.

[0037] Figure 8 This is a schematic diagram of the second state of the lifting cylinder and the wave ring in the general product assembly rotating device disclosed in the embodiment of the present invention.

[0038] Figure 9 This is a schematic diagram of the third state of the lifting cylinder and the wave ring in the general product assembly rotating device disclosed in the embodiments of the present invention.

[0039] Figure label:

[0040] 10. Limiting outer shell; 11. Upper outer shell; 12. Lower outer shell; 13. First reinforcing rib; 20. Waveform ring; 21. Waveform end; 30. Power telescopic assembly; 31. First telescopic part; 32. Second telescopic part; 33. Third telescopic part; 34. Fourth telescopic part; 40. Bearing ring; 41. Connecting part; 42. Bearing part; 43. Second reinforcing rib; 50. Bottom support; 60. Initial end detection part; 61. Movable end; 62. Fixed end. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0042] Figure 1 and Figure 6 As shown, one embodiment of the present invention provides a universal product assembly rotating device, the rotating device comprising:

[0043] The limiting shell 10 is an annular, hollow cavity;

[0044] A waveform ring 20 is rotatably connected to the limiting housing 10. One end of the waveform ring 20 is provided with a waveform end 21, which is a waveform surface that changes periodically around the waveform ring 20.

[0045] A plurality of power telescopic groups 30 are fixedly connected to the limiting housing 10. The output end of the power telescopic group 30 is engaged with the waveform end 21. During the extension and retraction of the output end of the plurality of power telescopic groups 30, the waveform ring 20 is driven to rotate.

[0046] A bearing ring 40 is fixedly connected to the waveform ring 20. The bearing ring 40 passes through the side wall of the limiting housing 10 and has a bearing part 42 on the outside of the limiting housing 10. The bearing part 42 is used to install and fix the fixture.

[0047] In this embodiment, the rotating device is installed at a preset position, such as a corner of the production line. A fixture for fixing the workpiece is installed on the bearing part 42. When the workpiece needs to be rotated, the output end of the power telescopic assembly 30 controls the rotation of the waveform ring 20 by extending and retracting. For example, when part of the output end of the power telescopic assembly 30 extends, the output end of the power telescopic assembly 30 abuts against the inclined surface of the waveform end 21. The force exerted by the output end of the power telescopic assembly 30 on the inclined surface of the waveform end 21 has a component force arranged circumferentially along the waveform ring 20, thereby driving the waveform ring 20 to rotate. The device 30 is equipped with several sets of power telescopic units. When the output ends of the several sets of power telescopic units 30 continuously extend and retract, they can drive the waveform ring 20 to rotate continuously. When the waveform ring 20 rotates, since the bearing ring 40 is fixedly connected to the waveform ring 20, the waveform ring 20 can drive the bearing ring 40 to rotate, thereby driving the tooling and workpiece on the bearing ring 40 to rotate. In this invention, the traditional gear / worm gear transmission is abandoned, and the waveform ring 20 is driven to rotate by direct drive of the power mechanism, which reduces the number of mechanical connections, thereby reducing mechanical wear, reducing the number of maintenance times of the rotating device, and lowering production costs.

[0048] The universal product assembly rotating device disclosed in this embodiment of the invention drives the waveform ring 20 with waveform end 21 to rotate continuously through the continuous extension and retraction of the output end of the power telescopic group 30, thereby driving the workpiece to rotate. Compared with the traditional gear transmission / worm gear transmission mechanism, the present invention has less mechanical contact, less wear, and greater load-bearing capacity, and can be adapted to heavier workpieces.

[0049] Specifically, in this embodiment, the limiting shell 10 includes an upper shell 11 and a lower shell 12. Both the upper shell 11 and the lower shell 12 are annular and are fixedly connected by bolts. Taking the example that the bearing ring 40 passes through the inner wall of the limiting shell 10 in this embodiment, the cross-section of the upper shell 11 is U-shaped with one end longer than the other, and the lower shell 12 is L-shaped. The upper shell 11 and the lower shell 12 are fixedly connected by bolts on the outer side, and an opening is formed on the inner side for the bearing ring 40 to pass through. The wave ring 20 is sleeved on the lower shell 12, and the lower shell 12 serves to limit the wave ring 20, preventing the wave ring 20 from moving and allowing it to only rotate.

[0050] like Figure 5As shown, a sealing ring is provided at the position where the upper outer shell 11 and the lower outer shell 12 are connected to the bearing ring 40 to seal the limiting shell 10. The wave ring 20 is located in the cavity formed by the upper outer shell 11 and the lower outer shell 12. A sealing gasket is provided at the connection between the upper outer shell 11 and the lower outer shell 12 to seal the limiting shell 10.

[0051] Preferably, the limiting housing 10 is filled with liquid lubricating oil to reduce wear between the wave ring 20 and the power telescopic assembly 30;

[0052] In a preferred embodiment of this invention, a first reinforcing rib 13 is provided on the inner side of the lower outer shell 12 to enhance the strength of the lower outer shell 12.

[0053] like Figures 4 to 6 As shown, the waveform ring 20 is annular, and the bearing ring 40 and the waveform ring 20 are fixedly connected by bolts. The waveform end 21 is a wave-shaped curved surface composed of several peaks and troughs. The vertical distance between the peaks and troughs is constant, and the angle formed by adjacent peaks and troughs with the center of the waveform ring 20 is constant, so that when the waveform ring 20 rotates, the change in the extension length of the output end of the power telescopic group 30 is a periodic curve.

[0054] The surface of the waveform end 21 is smooth to reduce wear between the waveform end 21 and the power telescopic assembly 30. The waveform end 21 is machined by milling. When the waveform ring 20 is set horizontally, the waveform end 21 is located on the lower end face of the waveform ring 20.

[0055] In a preferred embodiment of this invention, the power telescopic assembly 30 is provided with a plurality of telescopic structures. During the rotation of the waveform ring 20, the output end of at least one telescopic structure in the power telescopic assembly 30 is located on the inclined surface where the crest and trough transition occur, and the direction of the component force of the pressure exerted by the output end of the telescopic structure on the inclined surface on the rotation plane of the waveform ring 20 is the same as the rotation direction of the waveform ring 20, so that when the waveform ring 20 rotates, at least one telescopic structure in the power telescopic assembly 30 drives the waveform ring 20 to rotate.

[0056] Specifically, in this embodiment, such as Figures 6 to 9As shown, there are four telescopic structures arranged in the power telescopic group 30, namely the first telescopic part 31, the second telescopic part 32, the third telescopic part 33 and the fourth telescopic part 34. The first telescopic part 31, the second telescopic part 32, the third telescopic part 33 and the fourth telescopic part 34 are arranged in sequence. Denote the included angle formed by the midpoint of the telescopic end of the first telescopic part 31 and the midpoint of the telescopic end of the second telescopic part 32 and the center of the waveform ring 20 as A1, the included angle formed by an adjacent wave crest and wave trough and the center of the waveform ring 20 as A2, the included angle formed by the midpoint of the telescopic end of the second telescopic part 32 and the midpoint of the telescopic end of the third telescopic part 33 and the center of the waveform ring 20 as A3, and the included angle formed by the midpoint of the telescopic end of the third telescopic part 33 and the midpoint of the telescopic end of the fourth telescopic part 34 and the center of the waveform ring 20 as A4. Then A1 = A2 = A4, and A2 < A3 < 2A2;

[0057] Exemplarily, in this embodiment, the number of wave crests and wave troughs on the waveform end 21 is twenty each. Then the included angle between an adjacent wave crest and wave trough and the center of the circle is 9 degrees, that is, A2 is 9 degrees. Here, the wave crest is the protruding part on the waveform end 21, and the wave trough is the sunken part on the waveform end 21. Then the included angle formed by the midpoint of the output ends of the first telescopic part 31 and the second telescopic part 32 and the center of the waveform ring 20 is 9 degrees, that is, A1 is 9 degrees. Then the included angle formed by the midpoint of the telescopic end of the third telescopic part 33 and the midpoint of the telescopic end of the fourth telescopic part 34 and the center of the waveform ring 20 is 9 degrees, that is, A4 is 9 degrees. Then the set value of the included angle formed by the midpoint of the telescopic end of the second telescopic part 32 and the midpoint of the telescopic end of the third telescopic part 33 and the center of the waveform ring 20 should be greater than 9 degrees and less than 18 degrees, that is, 9 degrees < A3 < 18 degrees. In this embodiment, A3 is 15 degrees;

[0058] For the convenience of understanding, Figures 7 to 9 in the example of the unfolded state, taking Figures 7 to 9 the arrow direction in Figure 7 as the rotation direction of the waveform end 21, Figure 6 is the relative position of one of the power telescopic groups 30 and the waveform end 21 in Figure 7At the indicated moment, the output ends of the first telescopic part 31 and the fourth telescopic part 34 abut against the waveform end 21. The inclined surface on the waveform end 21 with the same inclination direction as the inclined surface connected to the output end of the first telescopic part 31 is the driving surface, that is, the inclined surface in the direction opposite to the arrow is the driving surface, which is used to drive the waveform ring 20 to move in the direction of the arrow. At this time, the output ends of the first telescopic part 31 and the fourth telescopic part 34 abut against the driving surface. When the output ends of the first telescopic part 31 and the fourth telescopic part 34 extend, the output ends of the first telescopic part 31 and the fourth telescopic part 34 drive the waveform ring 20 to move in the direction of the arrow.

[0059] When the output end of the first telescopic part 31 extends to its maximum value, that is, when Figure 8 As shown in the diagram, the output end of the first telescopic part 31 is at a trough, and the output end of the second telescopic part 32 is at a crest. At this time, the first telescopic part 31 and the second telescopic part 32 cannot drive the waveform ring 20 to rotate. However, the output end of the third telescopic part 33 abuts against the driving surface, enabling the third telescopic part 33 to drive the waveform ring 20 to rotate. When the output end of the third telescopic part 33 continues to extend, the output end of the second telescopic part 32 passes the crest and moves toward the driving surface. At this time, the output end of the second telescopic part 32 extends, the output end of the third telescopic part 33 extends, and the output ends of the first telescopic part 31 and the fourth telescopic part 34 retract. When the output ends of the second telescopic part 32 and the third telescopic part 33 extend, they drive the waveform ring 20 to rotate along the arrow.

[0060] When the waveform ring 20 rotates to such a position Figure 9 When the second telescopic part 32 is at a trough and the first telescopic part 31 is at a crest, the first telescopic part 31 and the second telescopic part 32 cannot drive the waveform ring 20 to rotate. However, the output end of the fourth telescopic part 34 abuts against the driving surface, enabling the fourth telescopic part 34 to drive the waveform ring 20 to rotate. When the output end of the fourth telescopic part 34 continues to extend, the output end of the first telescopic part 31 passes the crest and moves toward the driving surface. At this time, the output end of the first telescopic part 31 extends, the output end of the fourth telescopic part 34 extends, and the output ends of the second telescopic part 32 and the third telescopic part 33 retract. When the output ends of the first telescopic part 31 and the fourth telescopic part 34 extend, the waveform ring 20 is driven to rotate along the arrow.

[0061] It should be noted that, as Figures 7 to 9The relative positions of the first telescopic part 31, the second telescopic part 32, the third telescopic part 33, and the fourth telescopic part 34 with the waveform ring 20 shown are only partial positions. In this embodiment, the first telescopic part 31 and the second telescopic part 32 are the main driving structures, and the third telescopic part 33 and the fourth telescopic part 34 are the auxiliary driving structures to explain the principle of continuous rotation of the waveform ring 20. In actual control, the waveform ring 20 is driven to rotate by the reciprocating linear movement of the output ends of the first telescopic part 31, the second telescopic part 32, the third telescopic part 33, and the fourth telescopic part 34 with the same period. When the output ends of the first telescopic part 31, the second telescopic part 32, the third telescopic part 33, and the fourth telescopic part 34 move one reciprocating motion, the waveform ring 20 rotates by the angle formed by the adjacent wave crests, which is 18 degrees in this embodiment.

[0062] Preferably, the first telescopic part 31, the second telescopic part 32, the third telescopic part 33, and the fourth telescopic part 34 are all hydraulic cylinders. The first telescopic part 31, the second telescopic part 32, the third telescopic part 33, and the fourth telescopic part 34 are fixedly connected to the lower outer shell 12 by bolts. The power telescopic group 30 is provided in four groups, and each power telescopic group 30 is provided with a first telescopic part 31, a second telescopic part 32, a third telescopic part 33, and a fourth telescopic part 34. The four groups of power telescopic groups 30 are evenly distributed around the axis of the wave ring 20 in the circumferential direction.

[0063] The output ends of the first telescopic part 31, the second telescopic part 32, the third telescopic part 33, and the fourth telescopic part 34 pass through the lower outer shell 12.

[0064] In a preferred embodiment of this invention, the bearing ring 40 includes a connecting portion 41 and a bearing portion 42. The connecting portion 41 is a flat circular ring, and the bearing portion 42 is a cylindrical structure. The connecting portion 41 passes through the limiting shell 10. The bearing portion 42 and the connecting portion 41 are an integral structure. The end of the connecting portion 41 is used to connect a tooling. A second reinforcing rib 43 is provided on the inner side of the bearing portion 42. The second reinforcing rib 43 is used to strengthen the strength of the bearing portion 42.

[0065] As a preferred embodiment of this example, Figure 3 As shown, the power telescopic assembly 30 is fixedly connected to the bottom support 50, which is annular. The power telescopic assembly 30 and the bottom support 50 are fixedly connected by bolts. The bottom support 50 and the limiting shell 10 are located at the two ends of the power telescopic assembly 30, and the limiting shell 10 and the bottom support 50 are coaxially arranged.

[0066] As a preferred embodiment of this example, Figure 1 and Figure 2 As shown, the rotating device further includes:

[0067] An initial end detection unit 60 is used to locate the position of the waveform ring 20 when the waveform ring 20 is reset. The initial end detection unit 60 is installed on the limiting housing 10 and the bearing ring 40.

[0068] Specifically, in this embodiment, the initial end detection unit 60 includes a movable end 61 and a fixed end 62. The movable end 61 is fixedly connected to the bearing ring 40, and the fixed end 62 is fixedly connected to the limiting shell 10. The fixed end 62 rotates with the bearing ring 40. When the movable end 61 rotates to the position of the fixed end 62, a signal is generated in the fixed end 62 to identify the position of the movable end 61.

[0069] For example, the fixed end 62 is a Hall sensor and the movable end 61 is a magnetic sheet. When the waveform ring 20 drives the movable end 61 to rotate to the position of the fixed end 62, an electrical signal is generated in the fixed end 62.

[0070] In a preferred embodiment of this invention, the rotating device further includes:

[0071] A position acquisition component is used to acquire the rotation angle of the waveform ring 20 in real time;

[0072] Specifically, the position acquisition component acquires the rotation angle of the waveform ring 20 in real time when the waveform ring 20 rotates, thereby facilitating the establishment of a feedback mechanism by the production line control device to control the rotation of the bearing ring 40;

[0073] Preferably, the method for obtaining the rotation angle of the waveform ring 20 includes the following steps:

[0074] The number of times the output end of the telescopic structure within the power telescopic assembly 30 completes its telescopic movement, as well as the telescopic state and extension distance of the output end of the telescopic structure within the power telescopic assembly 30 at this time, are obtained.

[0075] The rotation angle of the waveform ring 20 is calculated based on the number of extensions, the extension state, and the extension distance. The rotation angle of the waveform ring is calculated based on formula (1):

[0076] ;Formula (1)

[0077] Wherein, A is the rotation angle of the waveform ring 20. When the telescopic structure completes one extension or retraction, the rotation angle of the waveform ring 20 is given, and m is the number of complete extensions or retractions at the output end of the telescopic structure. This represents the functional relationship between the extension distance of the output end of the telescopic structure and the rotation angle of the waveform ring 20 during the extension process. This represents the functional relationship between the extension distance of the output end of the telescopic structure during retraction and the rotation angle of the waveform ring 20. and Determined from actual measurements;

[0078] Preferably, the position acquisition component is a flow sensor installed on the power telescopic assembly 30, used to acquire the oil volume change curve in one of the hydraulic cylinders in the power telescopic assembly 30, thereby acquiring the rotation angle of the waveform ring 20. Specifically, taking the acquisition of the hydraulic flow in the first telescopic part 31 as an example, during the rotation of the waveform ring 20, the extension length of the output end of the first telescopic part 31 changes periodically, and the change period is the same. The change period of the hydraulic flow in the first telescopic part 31 is the time when the waveform ring 20 rotates a peak and a trough. The flow sensor can calculate the oil volume in the hydraulic cylinder, and calculate the extension distance of the output end of the hydraulic cylinder according to the parameters of the hydraulic cylinder. At the same time, the direction of the fluid flow counted by the flow sensor can be used to identify whether the hydraulic cylinder is in an extended state or a retracted state.

[0079] By obtaining the number of extensions and retractions of the first telescopic part 31, as well as its extension and retraction states and elongation length, the rotation angle of the waveform ring 20 can be calculated. For example, after the first telescopic part 31 undergoes one extension and retraction, the rotation angle of the waveform ring 20 is A2. When there are two extensions and retractions plus half the elongation distance, the rotation angle of the waveform ring 20 is (2 + ... ) * A2, which is 2.25 times A2. and Related to the variation patterns of peaks and troughs, this is derived from actual measurements. The extension length of the output end of the telescopic structure;

[0080] In some examples, the position acquisition component may also be a displacement sensor.

[0081] It should be understood that although the terms first, second, third, etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of this invention, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0082] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A general-purpose product assembly rotating device, characterized in that, The rotating device includes: A limiting shell, wherein the limiting shell is an annular cavity with a hollow interior; A waveform ring is rotatably connected to the limiting housing. One end of the waveform ring is provided with a waveform end, which is a waveform surface that changes periodically around the waveform ring. The waveform end is a wave-shaped curved surface composed of several peaks and troughs, wherein the vertical distance between the peaks and troughs is constant, and the angle formed between adjacent peaks and troughs and the center of the waveform ring is constant. Several power telescopic assemblies are fixedly connected to the limiting shell. The output end of each power telescopic assembly cooperates with the waveform end. During the extension and retraction of the output ends of the power telescopic assemblies, the waveform ring rotates. Several telescopic structures are provided within each power telescopic assembly. During the rotation of the waveform ring, the output end of at least one telescopic structure within the power telescopic assembly is located on the inclined surface where the wave crest and trough transition occur, and the direction of the component force of the pressure exerted by the output end of the telescopic structure on the inclined surface on the rotation plane of the waveform ring is the same as the rotation direction of the waveform ring. Four telescopic structures are provided within the power telescopic assembly, namely a first telescopic part, a second telescopic part, a third telescopic part, and a fourth telescopic part, which are arranged sequentially. Let A1 be the angle formed by the midpoints of the telescopic ends of the first and second telescopic parts and the center of the waveform ring; let A2 be the angle formed by the adjacent crests and troughs and the center of the waveform ring; let A3 be the angle formed by the midpoints of the telescopic ends of the second and third telescopic parts and the center of the waveform ring; and let A4 be the angle formed by the midpoints of the telescopic ends of the third and fourth telescopic parts and the center of the waveform ring. Then A1 = A2 = A4, A2 <A3<2A2; A bearing ring is fixedly connected to the waveform ring. The bearing ring passes through the side wall of the limiting housing and has a bearing part on the outside of the limiting housing. The bearing part is used to install and fix the fixture.

2. The universal product assembly rotating device according to claim 1, characterized in that, The rotating device further includes: A position acquisition component is used to acquire the rotation angle of the waveform ring in real time.

3. The universal product assembly rotating device according to claim 2, characterized in that, The rotation angle of the waveform ring includes: The number of times the output end of the telescopic structure within the power telescopic group completes its telescopic movement, as well as the telescopic state and extension distance of the output end of the telescopic structure within the power telescopic group at this time, are obtained. The rotation angle of the waveform ring is calculated based on the number of expansions, the expansion state, and the expansion distance. The rotation angle of the waveform ring is calculated based on formula (1): Official (1) Where A is the rotation angle of the waveform ring. When the telescopic structure completes one extension or retraction, the rotation angle of the waveform loop is given, and m is the number of complete extensions or retractions at the output end of the telescopic structure. This represents the functional relationship between the elongation distance of the output end of the telescopic structure and the rotation angle of the waveform ring during the elongation process. This represents the functional relationship between the extension distance of the output end of the telescopic structure during retraction and the rotation angle of the waveform loop. and It was obtained from actual measurements.

4. The universal product assembly rotating device according to claim 3, characterized in that, The telescopic structure is a hydraulic cylinder, and the position acquisition component is a flow sensor arranged on the oil supply line of the hydraulic cylinder.

5. The universal product assembly rotating device according to any one of claims 1-4, characterized in that, The limiting housing is equipped with lubricating oil.

6. The universal product assembly rotating device according to any one of claims 1-4, characterized in that, The rotating device further includes: An initial end detection unit is used to locate the position of the waveform ring when the waveform ring is reset. The initial end detection unit is installed on the limiting housing and the bearing ring.

7. The universal product assembly rotating device according to any one of claims 1-4, characterized in that, The rotating device further includes: Bottom support, the power telescopic assembly is fixedly connected to the bottom support, the bottom support is ring-shaped.

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