Workpiece positioning device

Abstract

The utility model discloses a workpiece positioning device which comprises a fixed bottom plate, parallel supporting side walls are fixed to the outer walls of the two sides of the top of the fixed bottom plate through bolts, conveying roll shafts distributed at equal intervals are rotationally installed between the two supporting side walls, a tray is arranged on the tops of the conveying roll shafts in a rolling mode, and the supporting roll shafts are arranged on the tray. A tray is arranged on the fixed bottom plate, a placing groove is formed in the outer wall of one side of the top of the tray, a check block is fixed to the top of the tray, a fixed seat is arranged on one side of the fixed bottom plate, a U-shaped fixed block is installed on the fixed seat through a screw, a rotating shaft is rotationally arranged on the U-shaped fixed block, and a gear is welded to the outer wall of the middle of the rotating shaft; in the positioning process of the workpiece, the servo air cylinder is used for driving the rack to move, so that the gear is driven to rotate, the gear lever can be driven to rotate around the rotating shaft, the gear lever can be quickly lifted and put down, the workpiece can be quickly positioned and released, the structure is simple, and the reliability is high.

Description

Technical Field

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

[0002] Currently, for the production of complex parts with numerous processing steps, multiple processes are typically combined into a production line to reduce material and labor costs, completing each process on a single assembly line. Automated production lines require not only high processing precision but also accuracy, speed, and efficiency to meet production requirements. Therefore, external positioning devices are often needed for rapid workpiece positioning during transport to facilitate subsequent processing. However, existing workpiece positioning devices are not quick and effective at saving manpower and time, and their positioning speed is slow, leading to reduced work efficiency. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a workpiece positioning device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A workpiece positioning device includes a fixed base plate. Parallel support sidewalls are bolted to the top two outer walls of the fixed base plate. Equally spaced conveyor rollers are rotatably mounted between the two support sidewalls. A tray is rotatably mounted on the top of each conveyor roller. A placement groove is formed on one outer wall of the top of the tray. A stop block is fixed to the top of the tray. A fixed seat is provided on one side of the fixed base plate. A U-shaped fixing block is mounted on the fixed seat by screws. A rotating shaft is rotatably mounted on the U-shaped fixing block. A gear is welded to the outer wall of the middle portion of the rotating shaft. A stop rod is fixed to one side of the rotating shaft via a coupling.

[0006] As a further improvement of this utility model, a sensor is embedded at the end of the stop bar, and the sensor is located above the support side panel.

[0007] As a further improvement of this utility model: the bottom inner wall of the U-shaped fixing block has a through guide groove, and the inner wall of the guide groove is slidably inserted with a guide block.

[0008] As a further embodiment of this utility model: a rack is welded to the top outer wall of the guide block, and the rack meshes with a gear to drive it; a piston rod of a servo cylinder is connected to one side of the rack.

[0009] As a further embodiment of this utility model: an L-shaped support block is welded to the outer wall of the U-shaped fixing block near the coupling, and the top of the L-shaped support block is perpendicular to the horizontally placed stop bar, and the bottom outer wall of the stop bar is lower than the top outer wall of the stop block.

[0010] As a further improvement of this utility model: an anti-slip rubber sleeve is bonded to the outer wall of the middle part of the conveying roller shaft, and the outer wall of the anti-slip rubber sleeve is provided with anti-slip threads, and the spacing between the supporting side walls is adapted to the size of the pallet.

[0011] As a further improvement of this utility model: the stop lever rotates along the axis of rotation, and the rotation angle of the stop lever is 0° to 90°.

[0012] Compared with the prior art, the present invention provides a workpiece positioning device, which has the following beneficial effects:

[0013] The workpiece positioning device designed in this paper improves the flexibility of the device by setting a detachable positioning device on the side of the conveying mechanism, which facilitates subsequent disassembly and maintenance, saves time, and improves the accuracy and reliability of the positioning device by using sensors to detect the presence or absence of the workpiece during the positioning process.

[0014] The workpiece positioning device designed in this paper uses a servo cylinder to drive the rack to move during the workpiece positioning process, which in turn drives the gear to rotate. This causes the stop lever to rotate around the rotating axis, enabling the stop lever to be raised and lowered quickly. This allows for rapid positioning and release of the workpiece. The device has a simple structure and high reliability.

[0015] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a workpiece positioning device proposed in this utility model;

[0017] Figure 2 This is a side view of the overall structure of a workpiece positioning device proposed in this utility model;

[0018] Figure 3 This is a first-view structural schematic diagram of a workpiece positioning device proposed in this utility model;

[0019] Figure 4 This is a front view of the overall three-dimensional structure of a workpiece positioning device proposed in this utility model.

[0020] In the diagram: 1. Fixed base plate; 2. Supporting side wall; 3. Conveyor roller shaft; 4. Pallet; 5. Placement groove; 6. Stop block; 7. Fixed seat; 8. U-shaped fixing block; 9. Rotating shaft; 10. Gear; 11. Coupling; 12. Stop bar; 13. Sensor; 14. Guide groove; 15. Guide block; 16. Rack; 17. Servo cylinder; 18. L-shaped support block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0022] A workpiece positioning device, in this embodiment, such as Figure 1-4 As shown, the device includes a fixed base plate 1. The top two outer walls of the fixed base plate 1 are fixed with parallel supporting side walls 2 by bolts. Conveying rollers 3 are rotatably installed between the two supporting side walls 2 at equal distances. A tray 4 is rolled on the top of the conveying rollers 3. A placement groove 5 is opened on one side outer wall of the top of the tray 4. A stop block 6 is fixed on the top of the tray 4. A fixed seat 7 is provided on one side of the fixed base plate 1. A U-shaped fixing block 8 is installed on the fixed seat 7 by screws. A rotating shaft 9 is rotatably installed on the U-shaped fixing block 8. A gear 10 is welded to the outer wall of the middle part of the rotating shaft 9. A stop bar 12 is fixed on one side of the rotating shaft 9 by a coupling 11.

[0023] By installing a detachable positioning device on the side of the conveying mechanism, the flexibility of the device can be effectively improved, facilitating subsequent disassembly and maintenance, saving time. Furthermore, during the positioning process, the presence or absence of the workpiece can be detected by sensor 13, which can improve the accuracy and reliability of the positioning device.

[0024] The end of the stop bar 12 is fitted with a sensor 13, and the sensor 13 is located above the support side 2. The bottom inner wall of the U-shaped fixing block 8 has a guide groove 14 that runs through it, and the inner wall of the guide groove 14 is slidably inserted with a guide block 15.

[0025] A rack 16 is welded to the top outer wall of the guide block 15, and the rack 16 meshes with and drives a gear 10. The piston rod of a servo cylinder 17 is connected to one side of the rack 16.

[0026] The stop lever 12 rotates along the axis of rotation 9, and the rotation angle of the stop lever 12 is 0° to 90°.

[0027] During the workpiece positioning process, the servo cylinder 17 drives the rack 16 to move, thereby driving the gear 10 to rotate, which in turn drives the stop lever 12 to rotate around the rotating shaft 9, realizing the rapid lifting and lowering of the stop lever 12. This enables the rapid positioning and release of the workpiece, and the structure is simple and highly reliable.

[0028] In this embodiment, the positioning device is first assembled, and the assembled fixing seat 7 is installed on the top side of the fixing base plate 1. After connecting to an external power supply for power supply and trial operation, the workpiece to be positioned and processed is placed inside the top placement groove 5 of the tray 4, and the tray 4 is placed on top of the conveying roller 3. After completion, the workpiece is conveyed by the conveying roller 3. During the conveying process, when the sensor 13 detects that one corner of the workpiece is being conveyed, the servo cylinder 17 pulls the rack 16 backward, thereby driving the stop bar 12 to rotate and quickly flatten. When the stop bar 12 is placed at the bottom limit of the L-shaped support block 18, it stops. At this time, the stop bar 12, together with the stop block 6, limits the workpiece on the tray 4, thereby processing the workpiece. When it is time to release after processing, the stop bar 12 is rotated to lift up, allowing the tray 4 to be conveyed, ready for the next workpiece to be positioned. Example

[0029] A workpiece positioning device, such as Figure 1-4 As shown, this embodiment makes the following additions based on embodiment 1: an L-shaped support block 18 is welded to the outer wall of the U-shaped fixing block 8 near the coupling 11, and the top of the L-shaped support block 18 is perpendicular to the horizontally placed stop bar 12. The bottom outer wall of the stop bar 12 is lower than the top outer wall of the stop block 6. An anti-slip rubber sleeve is bonded to the middle outer wall of the conveying roller shaft 3, and the outer wall of the anti-slip rubber sleeve is provided with anti-slip threads. The spacing between the supporting side walls 2 is adapted to the size of the tray 4.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A workpiece positioning device comprising a fixed base plate (1), characterised in that, The top two sides of the fixed bottom plate (1) are fixed with parallel support side walls (2) through bolts, and equidistantly distributed conveying roller shafts (3) are rotatably installed between the two support side walls (2), the top of the conveying roller shaft (3) is provided with a tray (4) which rolls, a placing groove (5) is opened in the top side of the tray (4), the top of the tray (4) is fixed with a stop block (6), and one side of the fixed bottom plate (1) is provided with a fixed seat (7), the fixed seat (7) is installed with a U-shaped fixed block (8) through screws, the U-shaped fixed block (8) is rotatably provided with a rotating shaft (9), the middle outer wall of the rotating shaft (9) is welded with a gear (10), and one side of the rotating shaft (9) is fixed with a stop lever (12) through a shaft coupling (11).

2. A workpiece positioning apparatus according to claim 1, wherein The end of the stop lever (12) is embedded with a sensor (13), and the sensor (13) is located above the support side wall (2).

3. A workpiece positioning apparatus as defined in claim 1, wherein, The bottom inner wall of the U-shaped fixed block (8) is penetrated with a guide groove (14), and the inner wall of the guide groove (14) is slidably inserted with a guide block (15).

4. A workpiece positioning apparatus according to claim 3, wherein The top outer wall of the guide block (15) is welded with a rack (16), and the rack (16) is engaged and driven by the gear (10), and one side of the rack (16) is connected with the piston rod of a servo air cylinder (17).

5. The workpiece positioning apparatus of claim 1, wherein, The side wall of the U-shaped fixed block (8) close to the shaft coupling (11) is welded with an L-shaped supporting block (18), and the L-shaped supporting block (18) is perpendicular to the horizontally placed stop lever (12) at the top, and the bottom outer wall of the stop lever (12) is lower than the top outer wall of the stop block (6).

6. The workpiece positioning apparatus of claim 1, wherein, The middle outer wall of the conveying roller shaft (3) is bonded with an anti-skid rubber sleeve, and the outer wall of the anti-skid rubber sleeve is provided with an anti-skid thread, and the distance between the support side walls (2) is matched with the size of the tray (4).

7. The workpiece positioning apparatus of claim 1, wherein, The stop lever (12) rotates along the axis of the rotating shaft (9), and the rotation angle of the stop lever (12) is 0°-90°. The top two sides of the fixed bottom plate (1) are fixed with parallel support side walls (2) through bolts, and equidistantly distributed conveying roller shafts (3) are rotatably installed between the two support side walls (2), the top of the conveying roller shaft (3) is provided with a tray (4) which rolls, a placing groove (5) is opened in the top side of the tray (4), the top of the tray (4) is fixed with a stop block (6), and one side of the fixed bottom plate (1) is provided with a fixed seat (7), the fixed seat (7) is installed with a U-shaped fixed block (8) through screws, the U-shaped fixed block (8) is rotatably provided with a rotating shaft (9), the middle outer wall of the rotating shaft (9) is welded with a gear (10), and one side of the rotating shaft (9) is fixed with a stop lever (12) through a shaft coupling (11).

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