Automatic centering and clamping mechanism for bottom support

Abstract

The utility model discloses an automatic centering and clamping mechanism for a bottom support, and relates to the technical field of reinforced concrete pipe production. Comprising a rack, a collet supporting panel is arranged at the top end of the rack, a bottom plate is installed at the bottom in the rack, a slewing bearing is arranged on the bottom plate, an inner ring of the slewing bearing is fixed to the bottom plate, a support is fixed to an outer ring of the slewing bearing, and a rotary driver in transmission connection with the outer ring is further installed in the rack. Three arc-shaped grooves which are rotationally and symmetrically arranged with the rotating center of the slewing bearing as the circle center are formed in the bottom support supporting panel, three sets of connecting rods which are evenly distributed on the circumference with the rotating center of the slewing bearing as the circle center are arranged between the support and the bottom support supporting panel, and each arc-shaped groove corresponds to one set of connecting rods. According to the utility model, the centering and clamping of the bottom support can be realized, so that the production efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of reinforced concrete pipe production technology, specifically to an automatic centering and clamping mechanism for a bottom support. Background Technology

[0002] With the development of technology, the requirements for automation are getting higher and higher. In the automated production process of radial extrusion tube making, the bottom trays at the bottom tray removal station need to be transferred to the bottom tray cleaning station, the cleaned bottom trays are then transferred to the bottom tray oiling station, and the oiled bottom trays are then transferred to the bottom tray stacking station. This process is repeated continuously. To achieve accurate and efficient transfer, the bottom trays need to be centered and clamped first, but no relevant products are provided in the existing technology.

[0003] In the current technology, the tube manufacturing process uses forklifts or overhead cranes to lift the base, which results in low production efficiency, high labor intensity for workers, high energy consumption, is labor-intensive, time-consuming, unsafe, and cannot guarantee product quality. Utility Model Content

[0004] The purpose of this invention is to provide an automatic centering and clamping mechanism for the base support, which can effectively solve the problems in the background art.

[0005] The technical solution to achieve the above objective is: an automatic centering and clamping mechanism for a base support, used for centering and clamping a base support, wherein a round hole is provided at the bottom of the base support, characterized in that: it includes a frame, a base support support panel is provided at the top of the frame, a base plate is installed at the bottom inside the frame, a slewing bearing is provided on the base plate, the inner ring of the slewing bearing is fixed to the base plate, a support is fixed on the outer ring, and a rotary driver that is connected to the outer ring is also installed inside the frame;

[0006] The base support panel is provided with three arc-shaped grooves that are symmetrically arranged about the rotation center of the slewing bearing. Three sets of connecting rods are provided between the support and the base support panel, which are evenly distributed on the circumference about the rotation center of the slewing bearing. Each arc-shaped groove corresponds to a set of connecting rods.

[0007] The connecting rod includes a first connecting rod and a second connecting rod arranged vertically. One end of the first connecting rod and the second connecting rod are fixedly connected by a screw shaft. The connecting ends of the first connecting rod and the second connecting rod are rotatably mounted on the base support panel by the screw shaft. The other end of the first connecting rod is connected to a sliding column that is slidably disposed in a corresponding arc groove. The sliding column extends vertically upward out of the base support panel. The arc groove is set as an arc with the rotation center of the screw shaft of the corresponding connecting rod as the center. The sliding column is located on the circumference with the rotation center of the slewing bearing as the center.

[0008] The other end of the second connecting rod is provided with a slide groove, in which a rolling bearing is slidably installed. The rolling bearing is rotatably connected to the support through a rotating shaft.

[0009] The rotary actuator is used to drive the support to rotate. The support drives the sliding column through the connecting rod to change the size of the circle formed, thereby realizing the centering and clamping mechanism of the base.

[0010] Furthermore, the second link of the three sets of links is staggered in the vertical direction, so that the second links can rotate relative to each other.

[0011] Furthermore, the outer ring of the slewing bearing is provided with an external gear ring, and the output end of the rotary actuator is connected to a gear that meshes with the external gear ring.

[0012] Furthermore, the rotary drive employs an oil motor.

[0013] When in use, this utility model is installed on a trolley that travels along a track, and the bottom tray is clamped in the center by a centering clamping mechanism. Then, the bottom tray from the bottom tray removal station is transferred to the bottom tray cleaning station, the cleaned bottom tray is transferred to the bottom tray oiling station, and the oiled bottom tray is transferred to the bottom tray stacking station. This cycle continues continuously, which greatly improves production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a top view of the structure of this utility model;

[0016] Figure 3 This is a partial schematic diagram of the present invention. Detailed Implementation

[0017] like Figure 1-3 As shown, this utility model discloses an automatic centering and clamping mechanism for a base support 1, which is used for centering and clamping the base support 1. The bottom of the base support 1 is provided with a circular hole 2.

[0018] The automatic centering and clamping mechanism for the base support includes a frame 6, and a base support panel 10 is mounted on the upper end of the frame 6.

[0019] A base plate 13 is fixed to the bottom of the frame 6. A slewing bearing 14 is provided on the base plate 13. The inner ring of the slewing bearing 14 is fixed to the base plate 13. A support 15 is fixed on the outer ring of the slewing bearing 14. A rotary driver 17 that is connected to the outer ring is also installed in the frame 6. The rotary driver 17 is a hydraulic motor. Specifically, an external gear ring 16 is provided on the outer ring of the slewing bearing 14. A gear 18 that meshes with the external gear ring 16 is connected to the output end of the rotary driver 17.

[0020] The base support panel 10 is provided with three arc-shaped grooves 19 arranged symmetrically about the rotation center of the slewing bearing 14. Three sets of connecting rods 20 are evenly distributed on the circumference of the support 15 and the base support panel 10, with each arc-shaped groove 19 corresponding to a set of connecting rods 20. Each connecting rod 20 includes a first connecting rod 21 and a second connecting rod 22 arranged vertically. One end of the first connecting rod 21 and the second connecting rod 22 are fixedly connected by a screw shaft 23, forming a 30° gap between them. With an acute angle of ~45°, the connecting ends of the first connecting rod 21 and the second connecting rod 22 are set outward and are rotatably mounted on the base support panel 10 through the screw shaft 23. The other end of the first connecting rod 21 is connected to a sliding column 24 that is slidably set in the corresponding arc groove 19. The sliding column 24 extends vertically upward out of the base support panel 10. The arc groove 19 is set as an arc with the rotation center of the screw shaft 23 of the corresponding connecting rod 20 as the center. The sliding column 24 is located on the circumference with the rotation center of the slewing bearing 14 as the center.

[0021] The other end of the second connecting rod 22 is provided with a slide groove 25, and a rolling bearing 26 is slidably disposed in the slide groove 25. The rolling bearing 26 is rotatably connected to the support 15 through a rotating shaft 27.

[0022] The second link 22 in the three sets of links 20 is arranged in a triangle and staggered in the vertical direction, so that the second links 22 can rotate synchronously relative to each other.

[0023] The rotary actuator 17 is used to drive the support 15 to rotate. The support 15 drives the sliding column 24 to change the size of the formed circumference through the connecting rod 20, thereby realizing the centering and clamping of the base 1.

[0024] During operation, the base 1 is placed on the base support panel 10, and three sliding columns 24 are located in the circular holes of the base 1. The rotary driver 17 drives the gear 18 to rotate the slewing bearing 14, thereby causing the support 15 mounted on the slewing bearing 14 to rotate. The three sets of rolling bearings 26 of different heights mounted on the support 15 move in the arc grooves 19 of the three connecting rods, respectively driving the three connecting rods 20 to rotate on a fixed axis. This causes the sliding columns 24 on the three connecting rods 20 to change the size of the circle formed, so that the base 1 can achieve the requirement of automatic centering, thereby realizing the purpose of automatic centering and locking of the base.

Claims

1. An automatic centering and clamping mechanism for a base tray, used for centering and clamping a base tray, wherein a circular hole is provided at the bottom of the base tray, characterized in that: The frame includes a bottom support panel at the top of the frame, a base plate at the bottom of the frame, a slewing bearing on the base plate, an inner ring of the slewing bearing fixed to the base plate, and a support fixed to the outer ring. The frame also contains a rotary drive that is connected to the outer ring for transmission. The base support panel is provided with three arc-shaped grooves that are symmetrically arranged about the rotation center of the slewing bearing. Three sets of connecting rods are provided between the support and the base support panel, which are evenly distributed on the circumference about the rotation center of the slewing bearing. Each arc-shaped groove corresponds to a set of connecting rods. The connecting rod includes a first connecting rod and a second connecting rod arranged vertically. One end of the first connecting rod and the second connecting rod are fixedly connected by a screw shaft. The connecting ends of the first connecting rod and the second connecting rod are rotatably mounted on the base support panel by the screw shaft. The other end of the first connecting rod is connected to a sliding column that is slidably disposed in a corresponding arc groove. The sliding column extends vertically upward out of the base support panel. The arc groove is set as an arc with the rotation center of the screw shaft of the corresponding connecting rod as the center. The sliding column is located on the circumference with the rotation center of the slewing bearing as the center. The other end of the second connecting rod is provided with a slide groove, in which a rolling bearing is slidably installed. The rolling bearing is rotatably connected to the support through a rotating shaft. The rotary actuator is used to drive the support to rotate. The support drives the sliding column through the connecting rod to change the size of the circumference formed, thereby realizing the centering and clamping mechanism of the base.

2. The automatic centering and clamping mechanism for a base as described in claim 1, characterized in that: The second link of the three sets of links is staggered in the vertical direction, so that the second links can rotate relative to each other.

3. The automatic centering and clamping mechanism for a base as described in claim 1, characterized in that: The outer ring of the slewing bearing is provided with an external gear ring, and the output end of the rotary actuator is connected to a gear that meshes with the external gear ring.

4. The automatic centering and clamping mechanism for a base as described in claim 1, characterized in that: The rotary drive uses a hydraulic motor.

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