Circular workpiece centering device

Abstract

The utility model discloses a round workpiece centering device, and relates to the technical field of machine manufacturing. A centering machine bottom plate is fixed to the base, two opposite sliding plates are installed on the centering machine bottom plate, a guide rail is fixed to the centering machine bottom plate, the sliding plates are arranged on the guide rail in a sliding mode through sliding blocks, clamping guide columns are installed at the two ends of each sliding plate, rollers are arranged at the top ends of the clamping guide columns, and the opposite sides of the two sliding plates are connected through an air cylinder. The other opposite sides of the two sliding plates are connected through a connecting rod, two racks and a gear, one sliding plate is fixedly connected with the rack through the connecting rod, the other sliding plate is fixedly provided with the racks, the two racks are in meshing transmission through the gear installed on a gear seat, the gear seat is fixed to a centering machine bottom plate, and the centering machine bottom plate is provided with the two sliding plates. An encoder is installed on the back face of the gear. The device improves the centering precision, is high in automation degree, improves the working efficiency, is high in reliability, and is wide in application prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to a circular workpiece centering device. Background Art

[0002] At present, the centering devices on the market mainly use belt transmission. After being used for a long time, the belt will become loose, affecting the centering accuracy and the reliability is average. At the same time, the degree of automation of the device is not high and the working efficiency is relatively low. Based on this, it is particularly necessary to design a new type of circular workpiece centering device. Utility Model Content

[0003] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a circular workpiece centering device with a simple structure, reasonable design, improved centering accuracy, high degree of equipment automation, improved work efficiency, strong practicality, and easy promotion and use.

[0004] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0005] Preferably, the roller is a rubber tube to prevent the pattern on the surface of the workpiece from being damaged during clamping, thereby effectively protecting the workpiece.

[0006] Preferably, the base serves as the entire installation frame, and its feet are fixed to the ground by expansion bolts.

[0007] Preferably, there are four guide rails, which are symmetrically fixed on the bottom plate of the centering machine. Each sliding plate is slidably set on two guide rails through sliders fixed at both ends of the bottom surface, thereby improving stability during movement.

[0008] Preferably, the movement of the cylinder is controlled by a PLC, which controls the solenoid valve to supply air to the upper or lower end of the cylinder, without any need for manual intervention.

[0009] The beneficial effects of the utility model are as follows: the device adopts cylinder drive and rack transmission to eliminate the loose situation, greatly improve the centering accuracy, the equipment has a high degree of automation, improves work efficiency, has high reliability, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments;

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the planar structure of the utility model;

[0013] Figure 3 for Figure 2 A top view of

[0014] Figure 4 for Figure 2 Left view of . DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0016] Reference Figure 1-4, this specific embodiment adopts the following technical scheme: a circular workpiece centering device, including a base 1, a centering machine bottom plate 2, a sliding plate 3, a clamping guide column 4, a roller 5, a slider 6, a guide rail 7, a cylinder 8, a connecting rod 9, a rack 10, a gear 11, a gear seat 12 and an encoder 13. The base 1 serves as the entire installation frame, and its bottom foot is fixed to the ground by expansion bolts. The centering machine bottom plate 2 is fixed on the base 1, and two opposite sliding plates 3 are installed on the centering machine bottom plate 2. The guide rail 7 is fixed on the centering machine bottom plate 2. The sliding plate 3 is slidably set on the guide rail 7 through the slider 6. Clamping guide columns 4 are installed at both ends of each sliding plate 3. The top of the clamping guide column 4 A roller 5 is provided at the end, and the opposite sides of the two sliding plates 3 are connected by a cylinder 8. The body of the cylinder 8 is fixed to one of the sliding plates 3 by a fixing member 14, and the rod end of the cylinder telescopic rod is fixed to the sliding plate 3 on the corresponding side by the fixing member 14; the other opposite sides of the two sliding plates 3 are connected by a connecting rod 9, two racks 10 and a gear 11, one of the sliding plates 3 is connected and fixed to the rack 10 by the connecting rod 9, and a rack 10 is fixed on the other sliding plate 3. The two racks 10 are engaged and transmitted through a gear 11 installed on a gear seat 12, and the gear seat 12 is fixed on the bottom plate 2 of the centering machine. An encoder 13 is installed on the back of the gear 11.

[0017] It is worth noting that there are four guide rails 7, which are symmetrically fixed on the centering machine base plate 2. Each sliding plate 3 is slidably set on two guide rails 7 through sliders 6 fixed at both ends of the bottom surface, thereby improving stability during movement.

[0018] In addition, the roller 5 is made of a rubber tube to prevent the pattern on the surface of the workpiece from being damaged during clamping, thereby effectively protecting the workpiece.

[0019] This specific embodiment uses a cylinder-driven, rack-driven approach for centering operations. Only one cylinder is needed to move the double-sided clamping guide pins 4. The device retracts the cylinder 8, driving the sliding plate 3 and rack 10 to move simultaneously, which in turn drives the clamping guide pins 4 and roller 5 to clamp the circular workpiece, completing the operation. The movement of the cylinder in this device is controlled by a PLC, which controls the solenoid valve to supply air to the upper or lower end of the cylinder. Its operating principle is as follows:

[0020] ① Centering device clamping: The cylinder axis contracts inward, driving the sliding plate to move toward the center. The other sliding plate, connected to the first slide plate via the rack, also moves toward the center, achieving the clamping function.

[0021] ② Release of the centering device: The cylinder pushes outward axially, driving the sliding plate to move toward the edge. The other sliding plate, connected to the first sliding plate via the rack, also moves toward the edge, achieving the release function.

[0022] This specific implementation method realizes the centering function through contraction and release. The centering result is detected by a magnetic switch to detect the stroke of the cylinder to obtain the current product model. The result is more accurate and the precision is higher through encoder detection. At the same time, it is controlled by PLC and does not require manual intervention at all, thereby improving automation efficiency and having a high degree of automation. It has broad market application prospects.

[0023] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A circular workpiece centering device, characterized in that: The invention comprises a base (1), a centering machine base plate (2), a sliding plate (3), a clamping guide column (4), a roller (5), a slider (6), a guide rail (7), a cylinder (8), a connecting rod (9), a rack (10), a gear (11), a gear seat (12) and an encoder (13). The base (1) is fixed with a centering machine base plate (2), two opposite sliding plates (3) are installed on the centering machine base plate (2), a guide rail (7) is fixed on the centering machine base plate (2), the sliding plate (3) is slidably arranged on the guide rail (7) through the slider (6), and clamping guide columns (4) are installed at both ends of each sliding plate (3). A roller (5) is provided at the top of (4), and the opposite sides of the two sliding plates (3) are connected by a cylinder (8), and the other opposite sides of the two sliding plates (3) are connected by a connecting rod (9), two racks (10) and a gear (11), one of the sliding plates (3) is connected and fixed to the rack (10) by the connecting rod (9), and the other sliding plate (3) is fixed with a rack (10), and the two racks (10) are meshed and transmitted through a gear (11) installed on a gear seat (12), and the gear seat (12) is fixed on the bottom plate (2) of the centering machine, and an encoder (13) is installed on the back of the gear (11).

2. A circular workpiece centering device according to claim 1, characterized in that: The roller (5) is a rubber tube.

3. A circular workpiece centering device according to claim 1, characterized in that: The body of the cylinder (8) is fixed to one of the sliding plates (3) via a fixing member (14), and the rod end of the cylinder telescopic rod is fixed to the sliding plate (3) on the corresponding side via a fixing member (14).

4. A circular workpiece centering device according to claim 1, characterized in that: The base (1) is fixed to the ground via expansion bolts.

5. The circular workpiece centering device according to claim 1, characterized in that: There are four guide rails (7) in total, and each sliding plate (3) is slidably arranged on two guide rails (7) via sliders (6) fixed at both ends of the bottom surface.

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