Heavy-load ball screw supporting structure

Abstract

The utility model belongs to the technical field of ball screw supporting, and particularly relates to a heavy-load ball screw supporting structure which comprises a base and a left supporting plate, the left supporting plate is connected to the left of the upper end of the base, the right of the upper end of the base is connected with a right supporting plate, the upper end of the base is connected with a supporting mechanism, and the supporting mechanism comprises a fixing unit and an adjusting unit. According to the heavy-load ball screw supporting structure, when a heavy-load ball screw is installed, firstly, a pressing rod at the outer end of a cylinder above a right supporting plate is pulled outwards, then one end of the heavy-load ball screw to be installed is placed in the cylinder, then a spring rebounds to push a connecting ring, and the end, located in the cylinder, of the pressing rod is driven to move to the outer end of the heavy-load ball screw; and then the adjusting ring at the outer end of the cylinder is rotated to drive the sliding ring to move until the convex ring moves to the outer end of the pressing rod, and after the pressing rod is pressed, the right end of the heavy-load ball screw is clamped into the cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of ball screw supports, in particular to a heavy-load ball screw support structure. Background Art

[0002] With the development of the mechanical transmission industry, the application of traverse modules has become more and more extensive. Ball screws are the most commonly used transmission components in tool machinery and precision machinery. Their main function is to convert rotational motion into linear motion, or to convert torque into axial repetitive force. At the same time, they have the characteristics of high precision, reversibility and high efficiency.

[0003] Most of the transverse movement modules in the current market use ball screws for transmission, and the ball screws transmit power by rotating themselves. Since the ball screws shake or tilt during rotation, both ends of the ball screws need to be supported and fixed.

[0004] For example, a ball screw support structure disclosed in Chinese patent CN208578943U, during the actual installation process, the second bearing and the retaining ring are first sleeved on the ball screw in sequence, and then the support seat is sleeved on the second bearing and the retaining ring, and finally the support seat is fixed to the base by fasteners such as screws or bolts. During the actual disassembly process, the fasteners are first loosened to remove the support seat from the base, and then the support seat is removed from the second bearing and the retaining ring, and finally the retaining ring and the second bearing are removed from the ball screw in sequence. This can fix and support the two ends of the ball screw respectively, and improve its axial rigidity, has a compact structure, saves equipment space, and reduces production costs.

[0005] However, the collar size of the support structure is fixed, so it can only be used to install and fix ball screws of the same diameter. When the ball screw needs to be replaced with a ball screw of another diameter, the support structure cannot be used.

[0006] Therefore, we urgently need to provide a heavy-duty ball screw support structure that can install and fix ball screws of different diameters. Utility Model Content

[0007] The purpose of the present utility model is to provide a heavy-duty ball screw support structure to solve the problem that the shaft ring size of the support structure proposed in the above-mentioned background technology is fixed, so that only ball screws of the same diameter can be installed and fixed. When the ball screw of other diameter sizes needs to be replaced, the support structure cannot be applied.

[0008] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a heavy-loaded ball screw support structure, comprising a base and a left support plate, the left support plate being connected to the left side of the upper end of the base, the right support plate being connected to the right side of the upper end of the base, the upper end of the base being connected to a support mechanism, the support mechanism comprising a fixing unit and an adjusting unit, the fixing unit being arranged at the upper ends of the left support plate and the right support plate, and the adjusting unit being arranged at the upper end of the base.

[0009] The fixing unit includes a first bearing fixedly connected to the inner upper ends of the left support plate and the right support plate, and a cylinder is symmetrically fixedly connected to the inner sides of the first bearings at the inner upper ends of the left support plate and the right support plate, and a sliding ring is slidably connected to the outer side of the cylinder, and a convex ring is fixedly connected to one end of the sliding ring close to the left support plate or the right support plate, and an adjusting ring is connected to the outer end of the cylinder, and a spring is fixedly connected to the inner side of the cylinder, and the other end of the spring is fixedly connected to the connecting ring, and a pressure rod for clamping a heavy-loaded ball screw is fixedly connected to the inner side of the connecting ring, and a connecting shaft is fixedly connected to the right side of the cylinder on the upper end of the right support plate, and a driving motor for driving the connecting shaft to rotate is installed on the other end of the connecting shaft.

[0010] A further improvement is that an external thread is provided on the outside of the cylinder and an internal thread is provided on the inside of the adjusting ring. The external thread on the outside of the cylinder is connected to the internal thread of the adjusting ring, so that when the adjusting ring is rotated so that it moves on the outside of the cylinder, it can push the sliding ring to move when it contacts the sliding ring.

[0011] A further improvement is that sliding holes are opened around the middle position of the cylinder, and the spring is fixed to the sliding hole on the inner side of the cylinder. The outer side of the pressure rod is slidably connected to the inner side of the sliding hole. The end of the pressure rod located in the cylinder is an inclined surface, and the inner side of the convex ring abuts the inclined surface of the pressure rod. The end of the pressure rod located in the cylinder abuts the outer end of the ball screw to be clamped and fixed, so that the pressure rod is pulled outward first, and then the left and right ends of the ball screw are placed in the cylinder, and after its two ends contact the innermost end of the inner side of the cylinder, the spring rebounds to push the connecting ring, driving the pressure rod to move and contact the outer sides of the left and right ends of the ball screw, thereby clamping and fixing the ball screw.

[0012] A further improvement is that a rubber pad is fixedly connected to the outside of one end of the pressure rod located in the cylinder, so that the rubber pad on the outside of the pressure rod contacts the outside of the ball screw, which can make the ball screw more firmly clamped and fixed to the cylinder.

[0013] A further improvement is that the adjustment unit includes a motor installed in the middle position of the left side of the base, the right end of the output shaft of the motor is fixedly connected to a threaded rod, and a second bearing is installed at the lower inside of the right support plate.

[0014] A further improvement is that the outer side of the right end of the threaded rod is fixedly connected to the inner side of the second bearing, so that when the motor is started and its output shaft rotates to drive the threaded rod to rotate, the end of the threaded rod away from the motor will rotate along with the inner ring of the second bearing.

[0015] A further improvement is that a slide groove is provided at the upper end of the base, a threaded hole is provided at the inner lower end of the left support plate, the outer side of the threaded rod is threadedly connected to the inner side of the threaded hole, the outer side of the lower end of the right support plate is fixedly connected to the inner right end of the slide groove, and the outer side of the lower end of the left support plate is slidably connected to the inner side of the slide groove, so that when the motor is started and its output shaft rotates to drive the threaded rod to rotate, the left support plate can be driven to slide along the inner side of the slide groove.

[0016] In summary, the present application discloses a heavy-load ball screw support structure.

[0017] This technical solution works by first pulling the pressure rod outward, then placing the left and right ends of the ball screw in the cylinder, and after the two ends contact the innermost end of the inner side of the cylinder, the connecting ring is pushed by the spring rebound, driving the pressure rod to move and contact the outer sides of the left and right ends of the ball screw, clamping and fixing the ball screw, then rotating the adjusting ring so that it moves on the outer side of the cylinder and pushes the sliding ring to move until the convex ring moves to the outer end of the pressure rod. After tightening the pressure rod, the ball screw can be clamped into the cylinder, completing the installation of the ball screw on the support structure, and by adjusting the moving length of the pressure rod in the cylinder, ball screws of different diameters can be clamped and fixed.

[0018] Furthermore, by starting the motor and rotating its output shaft to drive the threaded rod to rotate, the left support plate can be driven to slide along the inner side of the slide groove, thereby changing the distance between the left support plate and the right support plate, so as to facilitate clamping and fixing ball screws of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a structural diagram of the right support plate of the present utility model;

[0021] Figure 3 This is a cross-sectional view of the cylinder structure of the present invention;

[0022] Figure 4 This is a structural diagram of the pressure rod of the utility model.

[0023] In the figure: 1. Base; 2. Left support plate; 3. Right support plate; 401. First bearing; 402. Cylinder; 403. Sliding ring; 404. Convex ring; 405. Adjusting ring; 406. Spring; 407. Connecting ring; 408. Pressure rod; 501. Motor; 502. Threaded rod; 503. Second bearing; 6. Connecting shaft. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 4 The utility model provides a technical solution: a heavy-loaded ball screw support structure, including a base 1 and a left support plate 2, the left support plate 2 is connected to the left side of the upper end of the base 1, and the right side of the upper end of the base 1 is connected to the right support plate 3, the upper end of the base 1 is connected to a supporting mechanism, the supporting mechanism includes a fixing unit and an adjusting unit, the fixing unit is arranged at the upper ends of the left support plate 2 and the right support plate 3, and the adjusting unit is arranged at the upper end of the base 1.

[0026] The fixing unit includes a first bearing 401 fixedly connected to the upper inner ends of the left support plate 2 and the right support plate 3. The inner sides of the first bearing 401 at the upper inner ends of the left support plate 2 and the right support plate 3 are symmetrically fixedly connected with a cylinder 402. The outer side of the cylinder 402 is slidably connected with a sliding ring 403. The end of the sliding ring 403 close to the left support plate 2 or the right support plate 3 is fixedly connected with a convex ring 404. The outer end of the cylinder 402 is connected with an adjusting ring 405. The outer side of the cylinder 402 is provided with an external thread, and the inner side of the adjusting ring 405 is provided with an internal thread. The outer side of the cylinder 402 is provided with an external thread and the inner side of the adjusting ring 405 is connected with the inner thread of the adjusting ring 405. When the adjusting ring 405 is rotated so that it moves on the outer side of the cylinder 402, it can push the sliding ring 403 to move when it contacts the sliding ring 403.

[0027] A spring 406 is fixedly connected to the inner side of the cylinder 402, and the other end of the spring 406 is fixedly connected to a connecting ring 407. The inner side of the connecting ring 407 is fixedly connected to a pressure rod 408 for clamping a heavy-loaded ball screw. The right side of the cylinder 402 at the upper end of the right support plate 3 is fixedly connected to a connecting shaft 6, and the other end of the connecting shaft 6 is installed with a driving motor for driving the connecting shaft 6 to rotate.

[0028] The cylinder 402 is provided with sliding holes around its middle position, and the spring 406 is fixed to the sliding hole inside the cylinder 402. The outer side of the pressure rod 408 is slidably connected with the inner side of the sliding hole. The end of the pressure rod 408 located in the cylinder 402 is an inclined surface, and the inner side of the convex ring 404 abuts against the inclined surface of the pressure rod 408. The end of the pressure rod 408 located in the cylinder 402 abuts against the outer end of the ball screw to be clamped and fixed. Therefore, by first pulling the pressure rod 408 outward, and then placing the left and right ends of the ball screw in the cylinder 402, and after its two ends contact the innermost end of the inner side of the cylinder 402, the spring 40 6 rebounds and pushes the connecting ring 407, driving the pressure rod 408 to move and contact the outer sides of the left and right ends of the ball screw, clamping and fixing the ball screw. Then, the adjusting ring 405 is rotated so that it moves outside the cylinder 402 to push the sliding ring 403 to move until the convex ring 404 moves to the outer end of the pressure rod 408. After the pressure rod 408 is tightened, the ball screw can be clamped into the cylinder 402, completing the installation of the ball screw on the support structure. By adjusting the moving length of the pressure rod 408 in the cylinder 402, ball screws of different diameters can be clamped and fixed.

[0029] A rubber pad is fixedly connected to the outside of one end of the pressure rod 408 located in the cylinder 402, so that when the pressure rod 408 clamps the ball screw, the rubber pad on the outside of the pressure rod 408 contacts the outside of the ball screw, so that the ball screw can be clamped more firmly in the cylinder 402.

[0030] The adjustment unit includes a motor 501 mounted in the center of the left side of the base 1. A threaded rod 502 is fixedly connected to the right end of the motor 501's output shaft. A second bearing 503 is mounted below and inside the right support plate 3. The outer side of the right end of the threaded rod 502 is fixedly connected to the inner side of the second bearing 503. Therefore, when the motor 501 is started and its output shaft rotates, driving the threaded rod 502, the end of the threaded rod 502 away from the motor 501 rotates along with the inner ring of the second bearing 503, thereby limiting the end of the threaded rod 502 away from the motor 501 and ensuring stable rotation of the threaded rod 502.

[0031] A slide groove is provided at the upper end of the base 1, and a threaded hole is provided at the inner lower end of the left support plate 2. The outer side of the threaded rod 502 is threadedly connected to the inner side of the threaded hole, and the outer side of the lower end of the right support plate 3 is fixedly connected to the inner right end of the slide groove. The outer side of the lower end of the left support plate 2 is slidably connected to the inner side of the slide groove. When the motor 501 is started and its output shaft rotates to drive the threaded rod 502 to rotate, the left support plate 2 can be driven to slide along the inner side of the slide groove, thereby changing the distance between the left support plate 2 and the right support plate 3, so as to facilitate clamping and fixing ball screws of different lengths.

[0032] Working principle: When installing the heavy-duty ball screw, first pull outward the pressure rod 408 at the outer end of the cylinder 402 above the right support plate 3, then place one end of the heavy-duty ball screw to be installed in the cylinder 402, then the spring 406 rebounds and pushes the connecting ring 407, driving the end of the pressure rod 408 located in the cylinder 402 to move to the outer end of the heavy-duty ball screw, then rotate the adjusting ring 405 at the outer end of the cylinder 402, driving the sliding ring 403 to move until the convex ring 404 moves to the pressure rod 40 8, after tightening the pressure rod 408, the right end of the heavy-loaded ball screw is clamped into the cylinder 402, and then the motor 501 is started. The output shaft rotates to drive the threaded rod 502 to rotate, and at the same time drives the left support plate 2 to move until the upper end of the cylinder 402 moves the left end of the heavy-loaded ball screw, and then fix the left end of the heavy-loaded ball screw to the inside of the cylinder 402. At this time, the left and right ends of the heavy-loaded ball screw are clamped and fixed, and the installation of the heavy-loaded ball screw on the support structure can be completed.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A heavy-duty ball screw support structure, comprising a base (1) and a left support plate (2), wherein the left support plate (2) is connected to the left upper end of the base (1), and is characterized in that: The right side of the upper end of the base (1) is connected to a right support plate (3), and the upper end of the base (1) is connected to a support mechanism, the support mechanism comprising a fixing unit and an adjustment unit, the fixing unit being arranged at the upper ends of the left support plate (2) and the right support plate (3), and the adjustment unit being arranged at the upper end of the base (1); The fixing unit comprises a first bearing (401) fixedly connected to the inner upper end of the left support plate (2) and the right support plate (3); a cylinder (402) is symmetrically fixedly connected to the inner side of the first bearing (401) at the inner upper end of the left support plate (2) and the right support plate (3); a sliding ring (403) is slidably connected to the outer side of the cylinder (402); a convex ring (404) is fixedly connected to one end of the sliding ring (403) close to the left support plate (2) or the right support plate (3); and the cylinder (40 2) is connected to an adjusting ring (405), the inner side of the cylinder (402) is fixedly connected to a spring (406), the other end of the spring (406) is fixedly connected to a connecting ring (407), the inner side of the connecting ring (407) is fixedly connected to a pressure rod (408) for clamping a heavy-loaded ball screw, the right side of the cylinder (402) at the upper end of the right support plate (3) is fixedly connected to a connecting shaft (6), and the other end of the connecting shaft (6) is installed with a driving motor for driving the connecting shaft (6) to rotate.

2. A heavy-duty ball screw support structure according to claim 1, characterized in that: The outer side of the cylinder (402) is provided with an external thread, the inner side of the adjusting ring (405) is provided with an internal thread, and the outer side of the cylinder (402) is provided with an external thread that is connected to the inner thread of the adjusting ring (405).

3. The heavy-duty ball screw support structure according to claim 1, characterized in that: Sliding holes are provided around the middle of the cylinder (402), the spring (406) is fixed to the sliding hole on the inner side of the cylinder (402), the outer side of the pressure rod (408) is slidably connected to the inner side of the sliding hole, one end of the pressure rod (408) located in the cylinder (402) is an inclined surface, the inner side of the convex ring (404) abuts against the inclined surface of the pressure rod (408), and one end of the pressure rod (408) located in the cylinder (402) abuts against the outer end of the ball screw to be clamped and fixed.

4. The heavy-duty ball screw support structure according to claim 1, characterized in that: A rubber pad is fixedly connected to the outside of one end of the pressure rod (408) located in the cylinder (402).

5. The heavy-duty ball screw support structure according to claim 1, characterized in that: The adjustment unit comprises a motor (501) installed at the middle position on the left side of the base (1), the right end of the output shaft of the motor (501) is fixedly connected to a threaded rod (502), and a second bearing (503) is installed at the lower part of the right support plate (3).

6. The heavy-duty ball screw support structure according to claim 5, characterized in that: The outer side of the right end of the threaded rod (502) is fixedly connected to the inner side of the second bearing (503).

7. The heavy-duty ball screw support structure according to claim 5, characterized in that: A slide groove is provided at the upper end of the base (1), a threaded hole is provided at the inner lower end of the left support plate (2), the outer side of the threaded rod (502) is threadedly connected to the inner side of the threaded hole, the outer side of the lower end of the right support plate (3) is fixedly connected to the inner right end of the slide groove, and the outer side of the lower end of the left support plate (2) is slidably connected to the inner side of the slide groove.

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