Base width adjustable mechanism

Abstract

The utility model relates to the technical field of mechanical adjustment, and discloses a base width adjustable mechanism which comprises a base support, a threaded sleeve is connected to the top end of the base support in a penetrating mode, a rotating threaded rod penetrates through the inner side of the threaded sleeve in a threaded mode, a motor is connected to the top end of the rotating threaded rod, and a movable base is rotationally connected to the bottom end of the rotating threaded rod. A fixing frame is fixedly connected to the movable seat, an adjusting seat is installed on the surface of the fixing frame, and a locking bolt is locked between the fixing frame and the adjusting seat in a threaded mode. Adjustment is achieved by driving the threaded rod through the motor, operation is visual and reliable, the problem that an electric push rod is prone to damage is solved, maintenance frequency and cost are reduced, and the device is particularly suitable for high-frequency adjustment working conditions. Through rigid matching of the sliding block and the sliding frame, a double-sliding-rod smooth guiding structure and the supporting design of the fixing base, lateral loads are effectively dispersed, stress concentration is avoided, fatigue damage to key connecting parts is greatly reduced, and the overall service life of the mechanism is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical adjustment field especially relates to a base width adjustable mechanism. BACKGROUND

[0002] In the field of processing equipment, automatic production line and engineering machinery, the base width adjustment capability directly affects the foundation adaptability, load stability and production line compatibility of equipment. The prior art scheme has significant defects in meeting the high strength and high frequency adjustment requirements of mechanical equipment:

[0003] The existing technology part width adjustment adopts a servo electric push rod scheme. Although the servo electric push rod can realize 0.1mm level positioning accuracy, the stress concentration coefficient of the push rod connection is too large. When the push rod cantilever end is stressed, the root end bears a large bending moment, which is easy to bend and vibrate or deviate. However, when the screw rod is pushed, the overall structure of the screw rod is compact, the screw rod axis is uniformly stressed, and the anti-lateral force and eccentric load capacity are strong, with high stability. Based on this principle, we propose a base width adjustable mechanism. CONTENT OF THE UTILITY MODEL

[0004] To solve the technical problem that the existing servo electric push rod is easy to be damaged after long time operation, the utility model provides a base width adjustable mechanism.

[0005] The utility model adopts the following technical scheme: a base width adjustable mechanism, including base support, the top end of base support is connected with threaded sleeve, the inner side of threaded sleeve is threaded with rotating threaded rod, the top end of rotating threaded rod is connected with motor, the bottom end of motor is fixedly connected with support rack, the bottom end of rotating threaded rod is rotatably connected with moving seat, moving seat is fixedly connected with fixed frame, the surface of fixed frame is installed with adjusting seat, and the surface of fixed frame is installed with adjusting seat.

[0006] The outer side of base support is fixedly installed with sliding frame, the surface of sliding frame is slidably connected with sliding block, adjusting seat is fixedly installed above sliding block, and sliding rod penetrates adjusting seat.

[0007] One end of sliding rod penetrates adjusting seat, the other end of sliding rod is fixedly connected with limiting block, fixed seat is fixedly installed above limiting block, and support column is fixedly installed at the bottom end of fixed seat.

[0008] Through the work of motor, the rotating threaded rod connected with motor is rotated in the threaded sleeve. Since the threaded sleeve is fixed to the top end of the base support, the rotary motion of the rotating threaded rod is converted into linear motion through the threaded pair, driving the moving seat connected at the bottom to move horizontally in the horizontal direction.

[0009] Width adjustment: the movement of the moving seat is transmitted to the adjusting seat through the fixed frame. The fixed frame is fixedly connected with the sliding block, and the sliding block is in sliding fit with the sliding frame outside the base support. When the moving seat moves laterally, the fixed frame drives the sliding block to slide laterally along the sliding frame, so as to push the adjusting seat to move horizontally, thereby realizing the adjustment of the width of the base.

[0010] As a further optimization scheme of the utility model, the height of the adjusting seat and the fixed seat is kept at the same horizontal plane. The support column and the fixed seat provide vertical support for the base and keep the same horizontal height with the adjusting seat, ensuring uniform distribution of the load.

[0011] As a further optimization scheme of the utility model, the bottom end of the fixed frame is fixedly connected with the surface of the sliding block, the fixed frame and the sliding block form an L shape, and the adjusting seat is installed inside the L formed by the fixed frame and the sliding block.

[0012] As a further optimization scheme of the utility model, the rigid fit of the sliding block and the sliding frame, the double smooth guide structure of the slide rod, and the support design of the fixed seat jointly share the lateral load, avoid stress concentration, and significantly improve the fatigue resistance and service life of the mechanism.

[0013] As a further optimization scheme of the utility model, the slide rod is a cylindrical smooth rod body, and two groups of slide rods are arranged. The two groups of slide rods penetrate the inside of the adjusting seat. The slide rod penetrates the adjusting seat and is connected with the limiting block, plays a guiding and limiting role in the adjusting process, and prevents the adjusting seat from deviating or shaking.

[0014] As a further optimization scheme of the utility model, the fixed frame and the adjusting seat are fixed through locking bolts, and the locking bolts penetrate the surface of the fixed frame and the adjusting seat.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. The utility model realizes adjustment through a motor-driven threaded rod, is intuitive and reliable to operate, avoids the damage problem of the electric push rod, reduces the maintenance frequency and cost, and is especially suitable for high-frequency adjustment working conditions.

[0017] 2. The utility model effectively disperses the lateral load, avoids stress concentration, greatly reduces the fatigue damage of the key connection parts, and prolongs the overall service life of the mechanism through the rigid fit of the sliding block and the sliding frame, the double slide rod smooth guide structure, and the support design of the fixed seat.

[0018] 3. The utility model provides bidirectional guiding and limiting functions in the adjusting process through the slide rod penetrating the adjusting seat and being fixedly connected with the limiting block, prevents the adjusting seat from deviating or shaking, and ensures the linear precision and repeat positioning precision of the width adjustment.

[0019] 4, The utility model discloses the same horizontal height is kept with fixed seat, and in combination with the vertical support design of support column, make the load evenly distribute in base support and adjusting mechanism, avoid partial overload, the overall load stability of mechanism is improved significantly. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is whole structure schematic diagram of the utility model;

[0021] Figure 2 It is whole structure schematic diagram of the utility model Figure 1 It is middle part structure section schematic diagram.

[0022] Main symbol explanation:

[0023] 1, base support;2, threaded sleeve;3, rotating threaded rod;4, motor;41, support stand;5, moving seat;6, fixed frame;7, locking bolt;8, adjusting seat;9, sliding frame;10, sliding block;11, slide rod;12, limit block;13, fixed seat;14, support column. DETAILED DESCRIPTION

[0024] Below, combining the drawings and specific embodiment, the utility model is further described, need to explain, under the premise of not conflicting, the following described each embodiment between or each technical feature between can be arbitrarily combined to form new embodiment.

[0025] Example 1:

[0026] Please combine Figures 1-2 , this embodiment proposes a base width adjustable mechanism, including base support 1, the top end of base support 1 is threaded with threaded sleeve 2, the inside thread of threaded sleeve 2 is threaded with rotating threaded rod 3, the top end of rotating threaded rod 3 is connected with motor 4, the bottom end of motor 4 is fixedly connected with support stand 41, the bottom end of rotating threaded rod 3 is rotatably connected with moving seat 5, moving seat 5 is fixedly connected with fixed frame 6, and adjusting seat 8 is installed on the surface of fixed frame 6, and locking bolt 7 is threadedly locked between fixed frame 6 and adjusting seat 8.

[0027] Need to explain, fixed frame 6 and adjusting seat 8 are fixed through locking bolt 7, and locking bolt 7 penetrates the surface of fixed frame 6 and adjusting seat 8.

[0028] The outside of base support 1 is fixedly installed with sliding frame 9, the surface of sliding frame 9 is slidably connected with sliding block 10, adjusting seat 8 is fixedly installed above sliding block 10, and slide rod 11 penetrates the inside of adjusting seat 8.

[0029] Further, the slide rod 11 is a cylindrical smooth rod body, and two groups of slide rods 11 penetrate the inside of the adjusting seat 8. The slide rod 11 penetrates the adjusting seat 8 and is connected to the limiting block 12, plays a guiding and limiting role in the adjusting process, and prevents the adjusting seat 8 from deviating or shaking.

[0030] One end of the slide rod 11 penetrates the adjusting seat 8, and the other end of the slide rod 11 is fixedly connected to the limiting block 12. The fixed seat 13 is fixedly installed above the limiting block 12, and the support column 14 is fixedly installed at the bottom end of the fixed seat 13.

[0031] More specifically, the two motors 4 are controlled to work simultaneously by an external controller, and the rotating threaded rods 3 connected to the motors 4 rotate in the threaded sleeves 2. Since the threaded sleeves 2 are fixed to the top end of the base support 1, the rotating movement of the rotating threaded rods 3 is converted into linear movement through a threaded pair, and drives the moving seat 5 connected at the bottom to move horizontally along the horizontal direction.

[0032] Width adjustment: the movement of the moving seat 5 is transmitted to the adjusting seat 8 through the fixed frame 6. The fixed frame 6 is fixedly connected to the sliding block 10, and the sliding block 10 forms a sliding fit with the sliding frame 9 outside the base support 1. When the moving seat 5 moves horizontally, the fixed frame 6 drives the sliding block 10 to slide horizontally along the sliding frame 9, thereby pushing the adjusting seat 8 to move horizontally, so as to realize the adjustment of the width of the base.

[0033] The rigid fit of the sliding block 10 and the sliding frame 9, the double-group smooth guiding structure of the slide rod 11, and the support design of the fixed seat 13 jointly share the lateral load, avoid stress concentration, and significantly improve the fatigue resistance and service life of the mechanism.

[0034] It should be noted that the height of the adjusting seat 8 and the fixed seat 13 is kept at the same horizontal plane. The support column 14 and the fixed seat 13 provide vertical support for the base and keep the same horizontal height as the adjusting seat 8, so as to ensure uniform distribution of the load.

[0035] Further, the bottom end of the fixed frame 6 is fixedly connected to the surface of the sliding block 10, the fixed frame 6 and the sliding block 10 form an L shape, and the adjusting seat 8 is installed inside the L formed by the fixed frame 6 and the sliding block 10.

[0036] The base width adjustable mechanism cooperates with the mechanical transmission and sliding structure to realize stable and efficient width adjustment function. The specific working principle is as follows:

[0037] Adjusting drive: the rotating threaded rods 3 connected to the motors 4 rotate in the threaded sleeves 2 through the work of the motors 4. Since the threaded sleeves 2 are fixed to the top end of the base support 1, the rotating movement of the rotating threaded rods 3 is converted into linear movement through a threaded pair, and drives the moving seat 5 connected at the bottom to move horizontally along the horizontal direction.

[0038] Width adjustment: the movement of the moving seat 5 is transmitted to the adjusting seat 8 through the fixed frame 6. The fixed frame 6 is fixedly connected with the sliding block 10, and the sliding block 10 is in sliding fit with the sliding frame 9 outside the base support 1. When the moving seat 5 moves laterally, the fixed frame 6 drives the sliding block 10 to slide laterally along the sliding frame 9, thereby pushing the adjusting seat 8 to move horizontally, so as to realize the adjustment of the width of the base.

[0039] The slide rod 11 penetrates through the adjusting seat 8 and is connected with the limiting block 12, which plays a guiding and limiting role in the adjusting process, and prevents the adjusting seat 8 from deviating or shaking. The supporting column 14 and the fixed seat 13 provide vertical support for the base and keep the same horizontal height with the adjusting seat 8, so as to ensure the uniform distribution of the load.

[0040] The rigid fit of the sliding block 10 and the sliding frame 9, the double-set smooth guiding structure of the slide rod 11, and the support design of the fixed seat 13 jointly share the lateral load, avoid stress concentration, and significantly improve the fatigue resistance and service life of the mechanism.

[0041] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the range of protection of the utility model. Any non-substantial changes and replacements made by the person skilled in the art on the basis of the utility model belong to the range of protection required by the utility model.

Claims

1. A base width adjustable mechanism characterized by, Including the base support (1), the top end of the base support (1) is threaded with a threaded sleeve (2), the inner side of the threaded sleeve (2) is threaded with a rotating threaded rod (3), the top end of the rotating threaded rod (3) is connected with a motor (4), the bottom end of the motor (4) is fixedly connected with a support rack (41), the bottom end of the rotating threaded rod (3) is rotatably connected with a moving seat (5), the moving seat (5) is fixedly connected with a fixed frame (6), the surface of the fixed frame (6) is mounted with an adjusting seat (8); The outer side of the base support (1) is fixedly mounted with a sliding frame (9), the surface of the sliding frame (9) is slidingly connected with a sliding block (10), the adjusting seat (8) is fixedly mounted above the sliding block (10), the inside of the adjusting seat (8) penetrates a slide rod (11), the other end of the slide rod (11) is fixedly connected with a limiting block (12), the limiting block (12) is fixedly mounted above a fixed seat (13), the bottom end of the fixed seat (13) is fixedly mounted with a support column (14).

2. A base width adjustment mechanism as claimed in claim 1, wherein, The fixed frame (6) and the adjusting seat (8) are fixed by locking bolts (7), the locking bolts (7) penetrate the surface of the fixed frame (6) and the adjusting seat (8).

3. A base width adjustment mechanism as claimed in claim 1, wherein, The bottom end of the fixed frame (6) is fixedly connected with the surface of the sliding block (10), the fixed frame (6) and the sliding block (10) constitute an L shape, and the adjusting seat (8) is mounted inside the L formed by the fixed frame (6) and the sliding block (10).

4. A base width adjustment mechanism as claimed in claim 1, wherein, The height of the adjusting seat (8) and the fixed seat (13) remains at the same horizontal plane.

5. A base width adjustment mechanism as claimed in claim 1, wherein, The slide rod (11) is a cylindrical smooth rod body, provided with two groups, and the two groups of slide rods (11) penetrate the inside of the adjusting seat (8).

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