Workpiece turnover mechanism

Abstract

The utility model discloses a workpiece turnover mechanism which comprises a machine frame, a first conveying mechanism and a second conveying mechanism, the first conveying mechanism and the second conveying mechanism are fixedly installed on the machine frame, and the first conveying mechanism and the second conveying mechanism are adjacent and arranged side by side. Wherein the first conveying mechanism comprises a first roller wheel located at the feeding end and a first driving mechanism located at the discharging end, a first conveying belt is wound around a driving shaft of the first driving mechanism and the first roller wheel, and the driving shaft of the first driving mechanism is perpendicular to a wheel shaft of the first roller wheel in space; and the first conveying belt is in a twisting state from the feeding end to the discharging end. According to the utility model, the workpiece can be effectively and quickly overturned without staying, so that the processing of different surfaces of the workpiece is completed, and the production efficiency is improved; compared with an existing mechanical overturning structure, the mechanism is simple, and cost is saved.

Description

Technical Field

[0001] The utility model relates to a workpiece turning mechanism. Background Art

[0002] In many product production lines, it is often necessary to turn workpieces to facilitate processing of the other side of the workpieces.

[0003] The existing turning mechanisms are turning by chucks or manipulators. This kind of turning requires the chuck or manipulator to first grasp the workpiece and then turn the workpiece. Therefore, there is a certain delay in this turning method, which affects production efficiency. Developing a turning mechanism that can continuously produce without a pause time can improve production efficiency. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a workpiece turning mechanism to achieve the purpose of quickly turning workpieces on a production line.

[0005] To solve the above technical problem, the utility model adopts the following technical solutions to achieve:

[0006] A workpiece turning mechanism includes a frame and a first conveying mechanism and a second conveying mechanism fixedly installed on the frame. The first conveying mechanism and the second conveying mechanism are adjacent and arranged side by side;

[0007] Among them, the first conveying mechanism includes a first roller at the feeding end and a first driving mechanism at the discharging end. A first conveyor belt is wound around the driving shaft of the first driving mechanism and the first roller. The driving shaft of the first driving mechanism and the axle of the first roller are perpendicular to each other in space, so that the first conveyor belt is in a twisted state from the feeding end to the discharging end.

[0008] The workpiece is fed from the feeding end onto the first conveyor belt, is conveyed by the first conveyor belt and turns along with the twisted first conveyor belt and then falls onto the second conveying mechanism for continuous conveying, thereby realizing the turning of the workpiece.

[0009] Further, in order to better control the flipping angle of the workpiece when it is flipped on the first conveyor belt and prevent random rolling during flipping on the first conveyor belt, the second conveyor belt is also set in a twisted state. The second conveyor belt forms an angle with the first conveyor belt to ensure that the workpiece is limited by the second conveyor belt when flipped on the first conveyor belt to control the flipping angle. Therefore, the second conveying mechanism of the present utility model includes a second driving mechanism at the feeding end and a second roller at the discharging end. A second conveyor belt is wound around the driving shaft of the second driving mechanism and the second roller. The driving shaft of the second driving mechanism and the axle of the second roller are perpendicular to each other in space, so that the second conveyor belt is in a twisted state from the feeding end to the discharging end, and the first conveyor belt and the second conveyor belt are perpendicular to each other at the feeding end and the discharging end respectively.

[0010] Further, the first roller and the second roller are on the same horizontal plane, and the driving shafts of the first driving mechanism and the second driving mechanism are at the same height;

[0011] The first conveyor belt and the second conveyor belt are in contact with each other at the feeding end and the discharging end respectively.

[0012] Further, since the first conveying mechanism and the second conveying mechanism are arranged adjacent to and side by side, in order to prevent the mutual influence between the first conveyor belt and the second conveyor belt, such as excessive contact wear of the conveyor belt and reduction of the transmission efficiency, and also in order for the workpiece on the first conveyor belt to accurately fall on the second conveyor belt after flipping, in the present utility model, the contact center point between the first conveyor belt and the driving shaft of the first driving mechanism is higher in horizontal height than the central axis of the first roller, which enables the workpiece to maintain the same height during the transmission process of the first conveyor belt;

[0013] Correspondingly, the contact center point between the second conveyor belt and the driving shaft of the second driving mechanism is higher in horizontal height than the central axis of the second roller, which enables the flipped workpiece to maintain the same height during the transmission process of the second conveyor belt. The workpiece discharges at the same height after being flipped by the flipping mechanism, which is beneficial to the design of the production line.

[0014] Specifically, the first roller and the second driving mechanism are arranged at the feeding end of the frame, and the second roller and the first driving mechanism are arranged at the discharging end of the frame.

[0015] Furthermore, the driving mechanism is a motor.

[0016] Further, the frame further includes a mechanism fixing bracket, which includes a horizontal fixing bracket and a vertical fixing bracket, for fixedly connecting with different production line equipment to realize the flipping of the workpiece in the production line.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] The utility model can effectively and quickly realize the non-stop flipping of workpieces to complete the multi-sided processing of workpieces and improve production efficiency; the utility model does not require expensive manipulators to participate in the work, and the flipping operation of workpieces can be completed through a simple conveyor belt and a motor. Compared with the existing mechanical flipping structure, it is simple and cost-saving. For different workpieces, the flipping mechanism of the utility model can flip the workpieces at different angles. For example, for rod-shaped workpieces with a square or rectangular cross-section, they can be flipped 90° after being processed by the flipping mechanism. For plate-shaped workpieces, after being processed by the flipping mechanism, because the thickness of the plate-shaped workpieces is relatively thin, after the plate-shaped workpieces are flipped 90° between the first conveyor belt and the second conveyor belt, the surface where the thickness is located cannot support the entire plate-shaped workpiece to stand stably, so the plate-shaped workpieces will continue to tilt onto the second conveyor belt, thereby realizing the 180° flipping of the plate-shaped workpieces. Description of the Drawings

[0019] Figure 1 It is a schematic three-dimensional structure diagram of the flipping mechanism of the preferred embodiment of the utility model;

[0020] Figure 2 It is a schematic connection structure diagram of the flipping mechanism of the preferred embodiment of the utility model with the feeding belt and the discharging belt from a horizontal perspective;

[0021] Figure 3 It is a schematic side-by-side state diagram of the first conveying mechanism and the second conveying mechanism of the flipping mechanism of the preferred embodiment of the utility model;

[0022] Figure 4 It is a schematic separated state diagram of the first conveying mechanism and the second conveying mechanism of the flipping mechanism of the preferred embodiment of the utility model (the motor is not shown);

[0023] Figure 5 It is a schematic diagram of the set heights of the feeding end and the discharging end of the flipping mechanism of the preferred embodiment of the utility model;

[0024] Figure 6 It is a schematic diagram of the flipping process of rod-shaped workpieces between the first conveyor belt and the second conveyor belt;

[0025] Figure 7 It is a schematic diagram of the flipping process of plate-shaped workpieces between the first conveyor belt and the second conveyor belt.

[0026] In the figure: mechanism fixing bracket 1, horizontal fixing bracket 11, vertical fixing bracket 12, frame 2, first conveying mechanism 21, second conveying mechanism 22, first roller 211, first motor 212, first conveyor belt 213, second motor 221, second roller 222, second conveyor belt 223, feeding belt 3, discharging belt 4; rod-shaped workpiece 5, plate-shaped workpiece 6, feeding end A, discharging end B. Detailed implementation mode

[0027] To enable those skilled in the art to understand the present utility model more clearly and intuitively, the present utility model will be further described below in conjunction with the accompanying drawings.

[0028] Preferred embodiment

[0029] This embodiment will be described by taking the flipping of short strip-shaped workpieces as an example.

[0030] As Figures 1-5 shown, the flipping mechanism of this embodiment includes a mechanism fixed bracket 1, a frame 2, and a first conveying mechanism 21 and a second conveying mechanism 22 fixedly installed on the frame 2. The first conveying mechanism 21 and the second conveying mechanism 22 are adjacent and arranged side by side; the mechanism fixed bracket 1 includes a horizontal fixed bracket 11 and a vertical fixed bracket 12, which are used for fixedly connecting with equipment in different production lines to flip the workpieces in the production line.

[0031] The first conveying mechanism 21 includes a first roller 211 at the feeding end A and a first motor 212 at the discharging end B. A first conveyor belt 213 is wound around the driving shaft of the first motor 212 and the first roller 211. The driving shaft of the first motor 212 and the axle of the first roller 211 are perpendicular to each other in space, so that the first conveyor belt 213 is in a twisted state from the feeding end A to the discharging end B of the workpiece flipping mechanism.

[0032] The workpiece is fed from the feeding end A of the workpiece flipping mechanism onto the first conveyor belt 213, is flipped and conveyed through the twisted first conveyor belt 213 and then falls onto the second conveying mechanism 22 for continuous conveyance, thereby realizing the flipping of the workpiece.

[0033] Further, the second conveying mechanism 22 of this embodiment includes a second motor 221 at the feeding end A and a second roller 222 at the discharging end B. A second conveyor belt 223 is wound around the driving shaft of the second motor 221 and the second roller 222. The driving shaft of the second motor 221 and the axle of the second roller 222 are perpendicular to each other in space, so that the second conveyor belt 223 is in a twisted state from the feeding end A to the discharging end B of the workpiece flipping mechanism, and the first conveyor belt 213 and the second conveyor belt 223 are perpendicular to each other at the feeding end A and the discharging end B respectively.

[0034] Setting both the first conveyor belt 213 and the second conveyor belt 223 in a twisted state can limit the flipping angle of the workpiece when flipping on the first conveyor belt 213 and prevent random rolling when flipping on the first conveyor belt 213. Because an included angle will be formed between the second conveyor belt 223 and the first conveyor belt 213, it is ensured that the workpiece is limited and blocked by the second conveyor belt 223 when flipping on the first conveyor belt 213 to control the flipping angle of the workpiece and prevent excessive rolling.

[0035] Specifically, the first roller 211 and the second roller 222 are on the same horizontal plane, and the drive shafts of the first motor 212 and the second motor 221 are at the same height; the first conveyor belt 213 and the second conveyor belt 223 are in contact at the feeding end A and the discharging end B respectively.

[0036] Since the first conveying mechanism 21 and the second conveying mechanism 22 are arranged adjacent to and side by side, in order to prevent the mutual influence between the first conveyor belt 213 and the second conveyor belt 223, such as excessive contact wearing the conveyor belt and reducing the transmission efficiency, and also in order for the workpiece on the first conveyor belt 213 to accurately fall on the second conveyor belt 223 after being flipped, in this embodiment, the horizontal height h1 of the contact center point between the first conveyor belt 213 and the drive shaft of the first motor 212 is higher than the horizontal height h2 of the central axis of the first roller 211, which enables the workpiece to maintain a relatively consistent horizontal height during the transmission process of the first conveyor belt 213;

[0037] Correspondingly, the horizontal height h3 of the contact center point between the second conveyor belt 223 and the drive shaft of the second motor 221 is higher than the horizontal height h4 of the central axis of the second roller 222, which enables the flipped workpiece to maintain a relatively consistent horizontal height during the transmission process of the second conveyor belt 223. After the workpiece is flipped by the flipping mechanism, it can be discharged at the same height, which is beneficial to the design of the production line, that is, the height of the feeding belt 3 for feeding the flipping mechanism is the same as the horizontal height of the discharging belt 4 for receiving the workpiece flipped by the flipping mechanism.

[0038] Overall, in this embodiment, h2 = h4, h1 = h3. And the first roller 211 and the second motor 221 are arranged at the feeding end A of the frame 2, and the second roller 222 and the first motor 212 are arranged at the discharging end B of the frame 2.

[0039] The working process of the flipping mechanism in this embodiment is as follows:

[0040] The short strip-shaped rod workpiece 5 enters the horizontal section of the first conveyor belt 213 of the flipping mechanism from the feeding end A through the feeding of the feeding belt 3. The rod workpiece 5 is flipped by 90° under the action of the twisting section of the first conveyor belt 213. The flipped rod workpiece 5 is dumped on the second conveyor belt 223 and is sent into the discharging belt 4 located at the discharging end B of the flipping mechanism along the horizontal section of the second conveyor belt 223 to enter the next process; since the first conveyor belt 213 and the second conveyor belt 223 are in contact, the second conveyor belt 223 can limit the flipping angle of the workpiece during the flipping process to prevent it from being over-flipped. The flipping process of the entire rod workpiece 5 is shown as Figure 6 shown.

[0041] In addition, the flipping process of the plate workpiece 6 is similar. The difference is that the thickness of the plate workpiece 6 is relatively thin. After the plate workpiece 6 is flipped 90° between the first conveyor belt 213 and the second conveyor belt 223, it cannot support the entire plate workpiece 6 to stand stably due to the surface where the thickness is located. As a result, the plate workpiece 6 will continue to fall onto the second conveyor belt 223, thereby realizing a 180° flip of the plate workpiece. The schematic diagram of the entire flipping process of the plate workpiece 6 is as shown in Figure 7 shown.

[0042] The above description of the embodiments is to enable those of ordinary skill in the art to understand and apply the present utility model. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative efforts. Therefore, the present utility model is not limited to the embodiments herein. Any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model should be within the protection scope of the present utility model.

Claims

1. A workpiece turning mechanism, characterized in that: It comprises a frame and a first conveying mechanism and a second conveying mechanism fixedly mounted on the frame, wherein the first conveying mechanism and the second conveying mechanism are adjacent to and arranged side by side; Among them, the first conveying mechanism includes a first roller located at the feed end and a first driving mechanism located at the discharge end. A first conveyor belt is wound around the driving shaft of the first driving mechanism and the first roller. The driving shaft of the first driving mechanism and the axle of the first roller are perpendicular to each other in space, so that the first conveyor belt is in a twisted state from the feed end to the discharge end.

2. A workpiece turning mechanism according to claim 1, characterized in that: The second conveying mechanism includes a second driving mechanism located at the feed end and a second roller located at the discharge end, a second conveying belt is wound around the driving shaft of the second driving mechanism and the second roller, the driving shaft of the second driving mechanism and the axle of the second roller are perpendicular to each other in space, so that the second conveying belt is in a twisted state from the feed end to the discharge end, and the first conveying belt and the second conveying belt are perpendicular to each other at the feed end and the discharge end respectively.

3. A workpiece turning mechanism according to claim 2, characterized in that: The first roller and the second roller are on the same horizontal plane, and the driving shaft of the first driving mechanism and the driving shaft of the second driving mechanism are at the same height.

4. A workpiece turning mechanism according to claim 1 or 2, characterized in that: The first conveyor belt contacts the second conveyor belt at the feeding end and the discharging end respectively.

5. A workpiece turning mechanism according to claim 2, characterized in that: The contact center point between the first conveyor belt and the driving shaft of the first driving mechanism is higher in horizontal height than the horizontal height of the central axis of the first roller.

6. A workpiece turning mechanism according to claim 5, characterized in that: The contact center point between the second conveyor belt and the driving shaft of the second driving mechanism is higher in level than the center axis of the second roller.

7. A workpiece turning mechanism according to claim 2, characterized in that: The first roller and the second driving mechanism are arranged at the feeding end of the frame, and the second roller and the first driving mechanism are arranged at the discharging end of the frame.

8. A workpiece turning mechanism according to claim 1, characterized in that: The first driving mechanism is a motor.

9. A workpiece turning mechanism according to claim 2, characterized in that: The second driving mechanism is a motor.

10. A workpiece turning mechanism according to claim 1, characterized in that: The rack also includes a mechanical fixing bracket, which includes a horizontal fixing bracket and a vertical fixing bracket, and is used for fixed connection with different equipment.

Images