Manual multi-position locking rotary table

Abstract

The invention discloses a manual multi-position locking rotary table, and relates to the technical field of locking rotary tables. Comprising a base, a shafting assembly is rotationally arranged on the base, a fixed lower fluted disc is fixedly arranged at the bottom end of the shafting assembly, a fixed upper fluted disc is arranged in the base in a lifting and sliding mode, and a connecting gear ring is arranged on the fixed upper fluted disc; the connecting gear ring is bonded with the fixed lower fluted disc so as to fix the shafting assembly; two top shafts are arranged on the fixed upper fluted disc, a second eccentric wheel and a first eccentric wheel are rotationally arranged in the base and located above the fixed upper fluted disc, the second eccentric wheel and the first eccentric wheel are in linkage, and the second eccentric wheel and the first eccentric wheel are symmetrically arranged on the two sides of the end face of the fixed upper fluted disc. Spherical grooves are formed in the circumferences of the second eccentric wheel and the first eccentric wheel correspondingly, and the ends of the two top shafts make contact with the spherical grooves in the second eccentric wheel and the first eccentric wheel correspondingly. According to the multi-point rigid locking device, multi-point rigid locking is achieved through fluted disc locking, and stability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of locking turntables, and in particular to a manual multi-position locking turntable. Background Art

[0002] Turntables are widely used in industrial automation, optical inspection, aerospace, and other fields. Their core function is to achieve high-precision positioning and locking of the measured object or actuator at a specific angle. In scenarios such as precision assembly, multi-station processing, and dynamic performance testing, the turntable needs to frequently switch angles and maintain a rigid lock to resist external loads or vibration interference. However, traditional locking technologies such as hydraulic clamping, electromagnetic braking, or friction disc locking have certain limitations. Hydraulic locking is prone to loss of locking force due to oil leakage or pressure fluctuations, and has high maintenance costs. Electromagnetic braking is limited by heat dissipation and electromagnetic interference issues, and is prone to thermal failure during long-term continuous operation. In addition, existing technologies often use a single locking point design, making it difficult to lock the turntable at multiple positions, making it difficult to meet the requirements of modern industry. Based on the above technical problems, the present invention proposes a manual multi-position locking turntable. Based on the principle of high-precision geared disc locking, the turntable achieves multi-point rigid locking through geared disc locking. Summary of the Invention

[0003] In response to the above technical problems, the present invention proposes a high-precision gear disc locking principle to achieve multi-point rigid locking through gear disc locking, which has strong stability.

[0004] The technical solution used in the present invention is: a manual multi-position locking turntable, comprising a base, a shaft system assembly rotatably arranged on the base, a fixed lower gear disc fixedly arranged at the bottom of the shaft system assembly, a fixed upper gear disc is provided for lifting and sliding inside the base, and a connecting gear ring is provided on the fixed upper gear disc; the connecting gear ring is bonded to the fixed lower gear disc to fix the shaft system assembly; two top shafts are provided on the fixed upper gear disc, and eccentric wheel 2 and eccentric wheel 1 are rotatably arranged inside the base and above the fixed upper gear disc, and the eccentric wheel 2 and eccentric wheel 1 are linked, and the eccentric wheel 2 and eccentric wheel 1 are symmetrically arranged on both sides of the end face of the fixed upper gear disc, and spherical grooves are respectively provided on the circumference of the eccentric wheel 2 and the eccentric wheel 1, and the ends of the two top shafts are respectively in contact with the spherical grooves on the eccentric wheel 2 and the eccentric wheel 1, and the sliding of the fixed upper gear disc is controlled by the rotation of the eccentric wheel 2 and the eccentric wheel 1.

[0005] As a preferred solution, a mounting end plate is fixedly connected to the top of the base by screws to limit the installation of the shaft system assembly.

[0006] As a preferred solution, a control rod is rotatably provided on the side of the base, a bearing is provided inside the base, the bearing cooperates with the end of the control rod, a fixed plug shaft is cooperated with the end of the control rod facing away from the base, and a matching hole is provided on the outside of the base, the fixed plug shaft cooperates with the matching hole to fix the control rod.

[0007] As a preferred solution, the end of the control rotating rod facing the base is eccentrically connected to the end face of the eccentric wheel 2, which is used to control the rotation of the eccentric wheel 2; a connecting gear 2 is also fixedly provided on the end face of the eccentric wheel 2, and the connecting gear 2 is eccentrically connected to the end face of the eccentric wheel 2, and the connecting gear 2 is coaxial with the control rotating rod, and a connecting gear 1 is also eccentrically connected to the end face of the eccentric wheel 1, and the rotating shaft of the eccentric wheel 1 is rotatably installed inside the base, and the rotating shaft of the eccentric wheel 1 is coaxial with the connecting gear.

[0008] As a preferred solution, a mounting frame is fixedly connected to the interior of the base, and a linkage gear ring is rotatably provided on the mounting frame. The linkage gear ring is simultaneously engaged with the connecting gear 2 and the connecting gear 1 to achieve linkage.

[0009] As a preferred solution, the top shaft is arranged on the fixed upper gear disc through a threaded connection, and the top end of the top shaft is a spherical end, which moves in the spherical grooves on the second eccentric wheel and the first eccentric wheel.

[0010] As a preferred solution, a sliding rod is fixed on the fixed upper gear disc, the sliding rod slides with the bottom end of the base, and a spring is sleeved on the sliding rod, which is connected between the lower end surface of the fixed upper gear disc and the bottom end of the base.

[0011] As a preferred solution, the number of teeth and module parameters of the connecting gear ring are consistent with those of the fixed lower gear disc, so that the two gear discs can be well bonded and fixed.

[0012] When the shaft assembly rotates to the target angle, the control lever can be controlled to rotate, and the control lever drives the eccentric wheel 2 and the connecting gear 2 to rotate. Under the gear transmission action of the connecting gear 2 and the linkage gear ring, the connecting gear 1 and the eccentric wheel 1 rotate synchronously. The eccentric wheel 1 and the eccentric wheel 2 push the top shaft at the same time, and the spherical end of the top shaft moves in the spherical groove on the eccentric wheel 1 and the eccentric wheel 2 to reduce friction. The top shaft and the fixed upper gear plate move downward, so that the connecting gear ring and the fixed lower gear plate are bonded, which can realize the fixed lower gear plate and the shaft assembly. The number of teeth of the fixed lower sprocket and the connecting gear ring can be adjusted according to actual needs. The more teeth there are, the more the fixing angle of the shaft system assembly is. Specifically, when the fixed upper sprocket moves downward, the spring is compressed, and the fixed plug-in shaft is controlled to cooperate with the matching hole to achieve the fixation of the control rotating rod, thereby stabilizing the clamping state of the fixed upper sprocket. After contacting the fixation of the control rotating rod and rotating the control rotating rod, the fixed upper sprocket can be restored to its initial position under the elastic force of the spring, that is, the connecting gear ring and the fixed lower sprocket are decoupled.

[0013] Compared with the prior art, the present invention has the following advantages: (1) the eccentric wheel 1 and the eccentric wheel 2 push the top shaft at the same time, and the spherical end of the top shaft moves in the spherical grooves on the eccentric wheel 1 and the eccentric wheel 2, which can reduce friction; (2) the connecting gear ring is bonded to the fixed lower gear plate, which can achieve the fixation of the fixed lower gear plate and the shaft system assembly. The number of teeth of the fixed lower gear plate and the connecting gear ring can be adjusted according to actual needs. The more teeth there are, the more the fixing angle of the shaft system assembly can be; (3) the shaft system assembly in the present invention rotates to a certain angle and can be controlled and locked by controlling the turning rod. The operation is simple and multi-position locking can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention.

[0016] Figure 3 This is a schematic diagram of the internal installation structure of the base of the present invention.

[0017] Figure 4 This is a schematic diagram of the fixed lower gear disc installation structure of the present invention.

[0018] Figure 5 This is a schematic diagram of the eccentric wheel installation structure of the present invention.

[0019] Figure 6 This is a schematic diagram of the fixed upper gear disc structure of the present invention.

[0020] Figure 7 This is a structural schematic diagram of another angle of the fixed upper gear disc of the present invention.

[0021] Figure markings: 1-base; 2-mounting end plate; 3-screw; 4-shaft assembly; 5-matching hole; 6-control lever; 7-fixed plug shaft; 8-fixed upper gear plate; 9-bearing; 10-slide rod; 11-spring; 12-mounting frame; 13-linked gear ring; 14-fixed lower gear plate; 15-eccentric wheel one; 16-connecting gear one; 17-eccentric wheel two; 18-connecting gear two; 19-top shaft; 20-connecting gear ring. DETAILED DESCRIPTION

[0022] The following will provide a clear and complete description of the concept, specific structure and technical effects of the present invention in conjunction with the embodiments and drawings, so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other; it should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, front, back, etc. used in the present invention are only relative to the relative positional relationship of the various components of the present invention in the drawings.

[0023] In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. The terms used in this specification are only used to describe specific embodiments and are not intended to limit the present invention. The term "and / or" as used herein includes any combination of one or more of the related listed items.

[0024] like Figures 1 to 7 As shown, a manual multi-position locking turntable includes a base 1, a shaft assembly 4 is rotatably arranged on the base 1, a fixed lower gear disc 14 is fixedly arranged at the bottom end of the shaft assembly 4, a fixed upper gear disc 8 is provided inside the base 1 for lifting and sliding, and a connecting gear ring 20 is provided on the fixed upper gear disc 8; the connecting gear ring 20 is bonded to the fixed lower gear disc 14 to fix the shaft assembly 4; two top shafts 19 are provided on the fixed upper gear disc 8, and the base 1 is inside and located on the fixed upper gear disc 8. The eccentric wheel 2 17 and the eccentric wheel 1 15 are respectively provided with an eccentric wheel 17 and an eccentric wheel 1 15 for rotation. The eccentric wheel 2 17 and the eccentric wheel 1 15 are linked and symmetrically arranged on both sides of the end face of the fixed upper gear plate 8. Spherical grooves are respectively provided on the circumference of the eccentric wheel 2 17 and the eccentric wheel 1 15. The ends of the two top shafts 19 are respectively in contact with the spherical grooves on the eccentric wheel 2 17 and the eccentric wheel 1 15. The rotation of the eccentric wheel 2 17 and the eccentric wheel 1 15 can control the sliding of the fixed upper gear plate 8.

[0025] The top of the base 1 is fixedly connected to the mounting end plate 2 by screws 3 to limit the installation of the shaft system assembly 4; a control rod 6 is rotatably provided on the side of the base 1, and a bearing 9 is provided inside the base 1. The bearing 9 cooperates with the end of the control rod 6, and a fixed plug shaft 7 is provided on the end of the control rod 6 facing away from the base 1. A matching hole 5 is provided on the outside of the base 1, and the fixed plug shaft 7 cooperates with the matching hole 5 to fix the control rod 6.

[0026] One end of the control rotating rod 6 facing the base 1 is eccentrically connected to the end face of the eccentric wheel 2 17, and is used to control the rotation of the eccentric wheel 2 17; a connecting gear 2 18 is also fixedly provided on the end face of the eccentric wheel 2 17, and the connecting gear 2 18 is eccentrically connected to the end face of the eccentric wheel 2 17, and the connecting gear 2 18 is coaxial with the control rotating rod 6, and a connecting gear 16 is also eccentrically connected to the end face of the eccentric wheel 15, and the rotating shaft of the eccentric wheel 15 is rotatably installed inside the base 1, and the rotating shaft of the eccentric wheel 15 is coaxial with the connecting gear 16.

[0027] A mounting frame 12 is fixedly connected to the inside of the base 1, and a linkage gear ring 13 is rotatably set on the mounting frame 12, and the linkage gear ring 13 is engaged with the connecting gear 2 18 and the connecting gear 1 16 at the same time for linkage; the top shaft 19 is set on the fixed upper gear disc 8 through a threaded connection, and the top of the top shaft 19 is a spherical end, and the spherical end moves in the spherical grooves on the eccentric wheel 2 17 and the eccentric wheel 15; a slide rod 10 is fixedly set on the fixed upper gear disc 8, and the slide rod 10 slides with the bottom end inside the base 1, and a spring 11 is sleeved on the slide rod 10, and the spring 11 is connected between the lower end face of the fixed upper gear disc 8 and the bottom end inside the base 1; the number of teeth and module parameters of the connecting gear ring 20 are consistent with those of the fixed lower gear disc 14, so that the two gear discs can be well bonded to achieve fixation.

[0028] The working principle of the present invention is as follows: when the shaft assembly 4 rotates to the target angle, the control lever 6 can be controlled to rotate, and the control lever 6 drives the eccentric wheel 2 17 and the connecting gear 2 18 to rotate. Under the gear transmission action of the connecting gear 2 18 and the linkage gear ring 13, the connecting gear 16 and the eccentric wheel 15 rotate synchronously, and the eccentric wheel 15 and the eccentric wheel 2 17 simultaneously push the top shaft 19. The spherical end of the top shaft 19 moves in the spherical groove on the eccentric wheel 15 and the eccentric wheel 2 17 to reduce friction. The top shaft 19 and the fixed upper gear plate 8 move downward, so that the connecting gear ring 20 is bonded to the fixed lower gear plate 14, which can achieve Now, for the fixation of the fixed lower gear disc 14 and the shaft system assembly 4, the number of teeth of the fixed lower gear disc 14 and the connecting gear ring 20 can be adjusted according to actual needs. The more teeth there are, the greater the fixing angle of the shaft system assembly 4. Specifically, when the fixed upper gear disc 8 moves downward, the spring 11 is compressed, and by controlling the fixed plug-in shaft 7 to cooperate with the matching hole 5, the control rotating rod 6 is fixed, thereby stabilizing the clamping state of the fixed upper gear disc 8. After contacting the fixed control rotating rod 6 and rotating the control rotating rod 6, the fixed upper gear disc 8 can be restored to its initial position under the elastic force of the spring 11, that is, the connecting gear ring 20 is debonded from the fixed lower gear disc 14.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A manual multi-position locking turntable, comprising a base (1), on which a shaft assembly (4) is rotatably arranged, characterized in that: A fixed lower toothed disc (14) is fixedly provided at the bottom end of the shaft assembly (4), a fixed upper toothed disc (8) is provided inside the base (1) for lifting and sliding, and a connecting gear ring (20) is provided on the fixed upper toothed disc (8); the connecting gear ring (20) is bonded to the fixed lower toothed disc (14) to fix the shaft assembly (4); two top shafts (19) are provided on the fixed upper toothed disc (8), and an eccentric wheel 2 (17) and an eccentric wheel 1 are respectively provided inside the base (1) and above the fixed upper toothed disc (8) for rotation. (15), the eccentric wheel 2 (17) and the eccentric wheel 1 (15) are linked, and the eccentric wheel 2 (17) and the eccentric wheel 1 (15) are symmetrically arranged on both sides of the end surface of the fixed upper toothed disc (8), and spherical grooves are respectively provided on the circumferences of the eccentric wheel 2 (17) and the eccentric wheel 1 (15). The ends of the two top shafts (19) are respectively in contact with the spherical grooves on the eccentric wheel 2 (17) and the eccentric wheel 1 (15), and the fixed upper toothed disc (8) is controlled to slide by the rotation of the eccentric wheel 2 (17) and the eccentric wheel 1 (15).

2. A manual multi-position locking turntable according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a mounting end plate (2) via screws (3) to perform position-limiting mounting on the shafting assembly (4).

3. The manual multi-position locking turntable according to claim 1, characterized in that: A control rotating rod (6) is rotatably provided on the side of the base (1), a bearing (9) is provided inside the base (1), the bearing (9) cooperates with the end of the control rotating rod (6), a fixed plug shaft (7) is provided on the end of the control rotating rod (6) facing away from the base (1), a matching hole (5) is provided on the outside of the base (1), and the fixed plug shaft (7) cooperates with the matching hole (5) to fix the control rotating rod (6).

4. A manual multi-position locking turntable according to claim 3, characterized in that: The end of the control lever (6) facing the base (1) is eccentrically connected to the end face of the eccentric wheel 2 (17) for controlling the rotation of the eccentric wheel 2 (17); a connecting gear 2 (18) is fixedly provided on the end face of the eccentric wheel 2 (17), and the connecting gear 2 (18) is eccentrically connected to the end face of the eccentric wheel 2 (17), and the connecting gear 2 (18) is coaxial with the control lever (6); a connecting gear 1 (16) is also eccentrically connected to the end face of the eccentric wheel 1 (15), and the rotating shaft of the eccentric wheel 1 (15) is rotatably mounted inside the base (1), and the rotating shaft of the eccentric wheel 1 (15) is coaxial with the connecting gear 1 (16).

5. The manual multi-position locking turntable according to claim 4, characterized in that: The base (1) is fixedly connected to a mounting frame (12) inside, and a linkage gear ring (13) is rotatably provided on the mounting frame (12). The linkage gear ring (13) is simultaneously engaged with the connecting gear 2 (18) and the connecting gear 1 (16) to achieve linkage.

6. The manual multi-position locking turntable according to claim 1, characterized in that: The top shaft (19) is arranged on the fixed upper gear disc (8) through a threaded connection. The top end of the top shaft (19) is a spherical end, and the spherical end moves in the spherical grooves on the eccentric wheel 2 (17) and the eccentric wheel 1 (15).

7. The manual multi-position locking turntable according to claim 6, characterized in that: A slide rod (10) is fixedly provided on the fixed upper toothed disc (8), and the slide rod (10) is slidably matched with the inner bottom end of the base (1), and a spring (11) is sleeved on the slide rod (10), and the spring (11) is connected between the lower end surface of the fixed upper toothed disc (8) and the inner bottom end of the base (1).

8. The manual multi-position locking turntable according to claim 1, characterized in that: The number of teeth and module parameters of the connecting gear ring (20) are consistent with those of the fixed lower gear disc (14), so that the two gear discs can be well bonded and fixed.

Images