Screw rod nut withdrawing device

Abstract

The utility model discloses a lead screw nut withdrawing device which comprises a supporting mechanism, a clamping mechanism used for fixing a lead screw is arranged at the top of the supporting mechanism, two symmetrical guide mechanisms used for achieving sliding connection are arranged between the clamping mechanism and the supporting mechanism, and a rotating mechanism used for rotating a nut on the lead screw is arranged on the supporting mechanism. The rotating mechanism comprises a first bearing seat and a second bearing seat, the first bearing seat is located between the clamping and fixing mechanism and the second bearing seat, and a movable column is movably arranged between the first bearing seat and the second bearing seat in a penetrating mode; the lead screw is clamped through the clamping and fixing mechanism, the nut is arranged in the rotating mechanism, the nut is rotated through the rotating mechanism, under the matching action of the clamping and fixing mechanism and the guiding mechanism, the lead screw can do linear motion under pushing of a spiral line till the lead screw is separated from the nut, and then the nut retreating effect is achieved. Semi-automatic operation of the whole machine is achieved, workers only need to be responsible for feeding and discharging, the labor intensity of the workers is effectively reduced, and the nut withdrawing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of lead screw technology, and in particular to a lead screw unloading device. Background Technology

[0002] A lead screw, also known as a screw rod or helical actuator, typically consists of two parts: a lead screw and a lead nut. It transmits power and motion using the friction of a helix. One part is stationary, while the other part rotates or moves linearly. When the lead screw rotates, the lead screw moves linearly due to the helix's propulsion, and vice versa. This conversion mechanism is ideal for applications requiring high-precision control.

[0003] Currently, some lead screws or lead nuts are recycled and reused after use to save costs. However, the recycled lead screws and lead nuts are still connected. If the lead nut is removed manually, not only is the labor intensity high, but the removal efficiency is also low.

[0004] Therefore, a screw unloading device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a lead screw unloading device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] The lead screw unloading device includes:

[0008] The support mechanism has a clamping mechanism at its top for fixing the lead screw. There are two symmetrical guide mechanisms between the clamping mechanism and the support mechanism for sliding connection. The support mechanism is provided with a rotating mechanism for rotating the lead screw nut.

[0009] The rotating mechanism includes a first bearing seat and a second bearing seat. The first bearing seat is located between the clamping mechanism and the second bearing seat. A movable column is movably connected between the first bearing seat and the second bearing seat. A hexagonal hole for inserting a nut is opened at the center of the movable column. A driving component for driving the movable column to rotate is provided between the support mechanism and the movable column.

[0010] As a preferred technical solution, the support mechanism includes a bracket, an operating table is mounted on the top of the bracket, the bottoms of the first bearing seat and the second bearing seat are fixedly connected to the top of the operating table, the clamping mechanism and the guiding mechanism are both located on the operating table, and the driving component is located on the operating table.

[0011] As a preferred technical solution, the clamping mechanism includes a support fixedly connected to the top of the operating table. The support is located in front of the first bearing seat. The side of the support away from the first bearing seat is provided with a support member for initially supporting the lead screw. The support is provided with a clamping member for clamping and fixing the lead screw.

[0012] As a preferred technical solution, the support member includes a protruding plate fixedly connected to the front side of the support, the top of the protruding plate is integrally formed with a support plate, and the top of the support plate is provided with a support groove.

[0013] As a preferred technical solution, the clamping component includes hydraulic cylinders symmetrically installed on both sides of the support. The output end of the hydraulic cylinder extends through the inner cavity of the support and is fixedly connected to a clamping plate. Each of the two clamping plates has a clamping groove on its opposite side for use with the bracket groove.

[0014] As a preferred technical solution, the central axis of the bracket and the hexagonal hole are on the same straight line, and the central axis of the clamping groove and the bracket are parallel to each other.

[0015] As a preferred technical solution, the guiding mechanism includes a sliding sleeve fixedly connected to the side of the support and arranged parallel to the direction of the clamping groove axis. A T-shaped strip is slidably connected to the inner cavity of the sliding sleeve, and the bottom of the T-shaped strip is fixedly connected to the top of the operating table.

[0016] As a preferred technical solution, the driving component includes a stepper motor installed at the bottom of the operating table, the output end of the stepper motor is fixedly connected to a driving pulley, the surface of the movable column is fixedly connected to a driven pulley, the driven pulley and the driving pulley are connected by a belt drive, and the top of the operating table is provided with a through groove for the belt to pass through.

[0017] This utility model has at least the following beneficial effects:

[0018] This application uses a clamping mechanism to clamp the lead screw and places the lead screw nut inside a rotating mechanism. The rotating mechanism rotates the lead screw nut, and under the combined action of the clamping mechanism and the guiding mechanism, the lead screw will move in a straight line due to the push of the spiral until the lead screw and the lead screw nut separate, thereby achieving the effect of removing the lead screw nut. The whole machine achieves semi-automatic operation, and the operator only needs to be responsible for loading and unloading materials, which effectively reduces the labor intensity of manual labor and improves the efficiency of removing the lead screw nut. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the lead screw unloading device of this utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of the lead screw unloading device of this utility model. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the clamping mechanism and guiding mechanism of the lead screw unloading device of this utility model;

[0022] Figure 4 This is a schematic diagram of the rotating mechanism of the lead screw unloading device of this utility model.

[0023] In the diagram: 100, Support mechanism; 110, Bracket; 120, Operating table; 200, Clamping mechanism; 210, Support; 220, Supporting component; 221, Protruding plate; 222, Support plate; 223, Support groove; 230, Clamping component; 231, Hydraulic cylinder; 232, Clamping plate; 233, Clamping groove; 300, Guide mechanism; 310, Sliding sleeve; 320, T-shaped strip; 330, Baffle; 400, Rotation mechanism; 410, First bearing seat; 420, Second bearing seat; 430, Movable column; 440, Hexagonal hole; 450, Driving component; 451, Stepper motor; 452, Driving pulley; 453, Driven pulley. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 This utility model provides a lead screw unloading device, including a support mechanism 100, a clamping mechanism 200 for fixing the lead screw, a guide mechanism 300 for achieving a sliding connection, and a rotating mechanism 400 for rotating the lead screw nut. The clamping mechanism 200 and the guide mechanism 300 are both located on the top of the support mechanism 100. Two guide mechanisms 300 are symmetrically arranged about the center of the clamping mechanism 200. The guide mechanisms 300 are parallel to the axial direction of the lead screw. The rotating mechanism 400 is located on the support mechanism 100. Mechanism 400 includes a first bearing seat 410 and a second bearing seat 420. The first bearing seat 410 is located between the clamping mechanism 200 and the second bearing seat 420. A movable column 430 is movably connected between the first bearing seat 410 and the second bearing seat 420. The two ends of the movable column 430 are rotatably connected to the corresponding through-holes through bearings. A hexagonal hole 440 for inserting a nut is opened at the center of the movable column 430. A driving member 450 for driving the movable column 430 to rotate is provided between the support mechanism 100 and the movable column 430.

[0026] The support mechanism 100 includes a bracket 110, with an operating table 120 mounted on the top of the bracket 110. The bottoms of the first bearing seat 410 and the second bearing seat 420 are fixedly connected to the top of the operating table 120. The clamping mechanism 200 and the guiding mechanism 300 are both located on the operating table 120, and the driving component 450 is located on the operating table 120. The support mechanism 100 can provide a mounting base for the clamping mechanism 200, the guiding mechanism 300, and the rotating mechanism 400.

[0027] The clamping mechanism 200 includes a support 210 fixedly connected to the top of the operating table 120 and having a U-shaped structure. The support 210 is located on the front side of the first bearing seat 410. The side of the support 210 away from the first bearing seat 410 is provided with a support member 220 for initially supporting the lead screw. The support 210 is provided with a clamping member 230 for clamping and fixing the lead screw. The clamping mechanism 200 can stably place the lead screw in the required state to ensure that the subsequent rotating mechanism 400 can stably rotate the lead screw nut to perform the nut removal operation.

[0028] The support member 220 includes a protruding plate 221 fixedly connected to the front side of the support 210. The top of the protruding plate 221 is integrally formed with a support plate 222. The top of the support plate 222 is provided with a groove 223. By placing the lead screw in the groove 223, the support member 220 can support the lead screw so that it can be clamped by the clamping member 230 in the future.

[0029] The clamping component 230 includes hydraulic cylinders 231 symmetrically installed on both sides of the support 210. The output end of the hydraulic cylinder 231 extends into the inner cavity of the support 210 and is fixedly connected to a clamping plate 232. The two clamping plates 232 are respectively provided with clamping grooves 233 on opposite sides to cooperate with the bracket 223. By activating the hydraulic cylinder 231, the output end of the hydraulic cylinder 231 can drive the clamping plate 232 and the clamping groove 233 to move in the inner cavity of the support 210, so that the two clamping plates 232 move towards or away from each other to achieve the clamping or releasing operation of the lead screw. In order to improve the clamping effect of the clamping plate 232, a rubber pad is fixedly connected to the inner wall of the clamping groove 233 to increase friction and play an anti-slip role.

[0030] The central axis of the bracket 223 and the hexagonal hole 440 are on the same straight line, and the central axis of the clamping groove 233 and the bracket 223 are parallel to each other, so that after the clamping mechanism 200 clamps the screw, the screw can be stably kept in a certain horizontal state, so as to ensure that the rotating mechanism 400 can rotate the nut on the screw normally.

[0031] The guide mechanism 300 includes a sliding sleeve 310 fixedly connected to the side of the support 210 and arranged parallel to the axial direction of the clamping groove 233. A T-shaped strip 320 is slidably connected to the inner cavity of the sliding sleeve 310. The bottom of the T-shaped strip 320 is fixedly connected to the top of the operating table 120. When the rotating mechanism 400 rotates the screw nut, the screw will move due to the push of the spiral. Due to the clamping action of the clamping mechanism 200, the screw will not rotate with the screw nut. Therefore, the screw will move in a straight line. The guide mechanism 300 can guide the clamping mechanism 200 and the screw, so that the clamping mechanism 200 and the screw can move in a straight line stably. To prevent the sliding sleeve 310 from moving excessively, a baffle 330 is fixedly connected to the front end of the T-shaped strip 320, which can limit the sliding sleeve 310 and prevent the sliding sleeve 310 from slipping off the T-shaped strip 320.

[0032] The driving component 450 includes a stepper motor 451 mounted on the bottom of the operating table 120. The output end of the stepper motor 451 is fixedly connected to a drive pulley 452. The surface of the movable column 430 is fixedly connected to a driven pulley 453. The driven pulley 453 and the drive pulley 452 are connected by a belt drive. The top of the operating table 120 is provided with a through groove for the belt to pass through. By starting the stepper motor 451, the output end of the stepper motor 451 can drive the movable column 430 to rotate through the cooperation of the drive pulley 452, the driven pulley 453 and the belt, thereby rotating the nut in the hexagonal hole 440.

[0033] The working principle of this utility model is as follows: The lead screw is placed in the groove 223 for auxiliary support, and the end of the lead screw is inserted into the hexagonal hole 440 until the nut on the lead screw is placed in the hexagonal hole 440; then the hydraulic cylinder 231 is activated, and the output end of the hydraulic cylinder 231 drives the clamping plate 232 to slide within the cavity of the support 210, causing the two clamping plates 232 to move towards each other until the inner wall of the clamping groove 233 contacts the lead screw, thus clamping the lead screw; then the stepper motor 451 is activated, and the output shaft of the stepper motor 451 drives the drive pulley 452 to rotate. The drive pulley 452 drives the driven pulley 453 to rotate via a belt. 3. The movable column 430 and the hexagonal hole 440 are rotated, causing the movable column 430 to rotate the nut in the hexagonal hole 440. Under the cooperation of the clamping mechanism 200 and the guiding mechanism 300, the screw will move linearly due to the push of the spiral, causing the screw to gradually move away from the rotating mechanism 400. The screw drives the clamping mechanism 200 and the sliding sleeve 310 to move synchronously. The sliding sleeve 310 slides on the surface of the T-shaped strip 320 until the screw separates from the nut, thus completing the nut removal operation. Finally, the hydraulic cylinder 231 is activated, causing the two clamping plates 232 to move in opposite directions to release the screw. At this time, the screw can be removed and the nut in the hexagonal hole 440 can be pushed out.

[0034] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model 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 this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lead screw unloading device, characterized in that, include: The support mechanism (100) has a clamping mechanism (200) at its top for fixing the lead screw. The clamping mechanism (200) and the support mechanism (100) are provided with two symmetrical guide mechanisms (300) for sliding connection. The support mechanism (100) is provided with a rotating mechanism (400) for rotating the lead screw nut. The rotating mechanism (400) includes a first bearing seat (410) and a second bearing seat (420). The first bearing seat (410) is located between the clamping mechanism (200) and the second bearing seat (420). A movable column (430) is movably connected between the first bearing seat (410) and the second bearing seat (420). A hexagonal hole (440) for inserting a nut is provided at the center of the movable column (430). A driving member (450) for driving the movable column (430) to rotate is provided between the support mechanism (100) and the movable column (430).

2. The lead screw unloading device according to claim 1, characterized in that: The support mechanism (100) includes a bracket (110), and an operating table (120) is mounted on the top of the bracket (110). The bottoms of the first bearing seat (410) and the second bearing seat (420) are fixedly connected to the top of the operating table (120). The clamping mechanism (200) and the guiding mechanism (300) are both located on the operating table (120), and the driving component (450) is located on the operating table (120).

3. The lead screw unloading device according to claim 2, characterized in that: The clamping mechanism (200) includes a support (210) fixedly connected to the top of the operating table (120). The support (210) is located on the front side of the first bearing seat (410). The side of the support (210) away from the first bearing seat (410) is provided with a support member (220) for initially supporting the lead screw. The support (210) is provided with a clamping member (230) for clamping and fixing the lead screw.

4. The lead screw unloading device according to claim 3, characterized in that: The support member (220) includes a protruding plate (221) fixedly connected to the front side of the support (210). The top of the protruding plate (221) is integrally formed with a support plate (222), and the top of the support plate (222) is provided with a support groove (223).

5. The lead screw unloading device according to claim 4, characterized in that: The clamping member (230) includes hydraulic cylinders (231) symmetrically installed on both sides of the support (210). The output end of the hydraulic cylinder (231) extends through the inner cavity of the support (210) and is fixedly connected to a clamping plate (232). The two clamping plates (232) are respectively provided with clamping grooves (233) on opposite sides for use with the bracket (223).

6. The lead screw unloading device according to claim 5, characterized in that: The central axis of the bracket (223) and the hexagonal hole (440) are on the same straight line, and the central axis of the clamping groove (233) and the bracket (223) are parallel to each other.

7. The lead screw unloading device according to claim 5, characterized in that: The guide mechanism (300) includes a sliding sleeve (310) fixedly connected to the side of the support (210) and arranged parallel to each other in the axial direction of the clamping groove (233). A T-shaped strip (320) is slidably connected to the inner cavity of the sliding sleeve (310), and the bottom of the T-shaped strip (320) is fixedly connected to the top of the operating table (120).

8. The lead screw unloading device according to claim 2, characterized in that: The driving component (450) includes a stepper motor (451) installed at the bottom of the operating table (120). The output end of the stepper motor (451) is fixedly connected to a drive pulley (452). A driven pulley (453) is fixedly connected to the surface of the movable column (430). The driven pulley (453) and the drive pulley (452) are connected by belt drive. A through groove is provided on the top of the operating table (120) for the belt to pass through.

Images