Workpiece angular positioning mechanism suitable for automated processing

Abstract

The utility model belongs to the field of mechanical automation processing production, specifically discloses a kind of workpiece angular orientation mechanism suitable for automation processing, including rack assembly, rotating assembly, positioning assembly and detection component, the detection component at least includes two close range sensors being set along the circumferential interval of workpiece rotating disc, workpiece rotating disc is sleeved on the upper portion of servo motor speed reducer output shaft, workpiece positioning disc is detachably connected with workpiece rotating disc, and a plurality of positioning rings of protruding setting are arranged on the workpiece positioning disc along its radial interval, when working, servo motor drives workpiece rotating disc by servo motor speed reducer output shaft, workpiece rotating disc rotates simultaneously by workpiece positioning disc and drives the synchronous rotation of workpiece to be processed, close range sensor senses the two round bosses of processing workpiece, servo motor stops rotating, and the angular orientation of processing workpiece is completed, the continuity and reliability of guaranteeing automation production line operation, ensure the consistency of workpiece processing, improve processing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical automated processing and production, and specifically discloses a workpiece angular positioning mechanism applicable to automated processing. Background Technology

[0002] In existing automated machining workshops, robotic arms are typically used to grip and transfer parts between various machining processes. However, some workpieces require specific angles or postures to be gripped and fed into the machine tool before subsequent processing. Examples include disc-shaped, ring-shaped, and cylindrical workpieces of rotation. These workpieces generally have protruding convex parts in their circumferential direction, and further processing requires using the convex part as a reference orientation. Before entering the machine tool, the convex part of the workpiece must face a specific direction; it cannot be fed into the machine tool at an arbitrary angle. In the automated machining process, angular positioning is unavoidable, and some machining processes require drilling and milling operations based on the workpiece's inherent characteristics. For example, ... Figure 5 The brake housing part shown is a target part blank of a company. The blank is a round shaft part with two circular bosses on the side. These circular bosses need to be drilled and milled on a four-axis machining center. Currently, the angular positioning of this process mainly relies on manual operation, which involves a high degree of manual intervention, high labor intensity, and cannot guarantee the continuity, reliability, and consistency of workpiece processing in automated production lines. The existing angular positioning devices cannot adapt to the different positioning requirements of workpieces of different specifications. Summary of the Invention

[0003] To address the problems in the background art, this utility model discloses a workpiece angular positioning mechanism suitable for automated processing, which ensures the continuity and reliability of automated production line operation, ensures the consistency of workpiece processing, improves processing efficiency, and is also compatible with the positioning requirements of various workpieces.

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

[0005] A workpiece angular positioning mechanism suitable for automated processing includes a frame assembly, a rotating assembly, and a positioning assembly. The frame assembly includes a horizontally arranged frame body with a countersunk hole penetrating its upper and lower end faces in the middle of the frame body. The rotating assembly includes a servo motor and a servo motor reducer disposed below the frame body. A tapered roller bearing is fitted on the output shaft of the servo motor reducer, and the outer ring of the tapered roller bearing is fixedly connected to a mounting plate fixedly embedded in the countersunk hole via a bearing seat. A key connecting plate is keyed to the upper end of the output shaft of the servo motor reducer, and a workpiece rotating disk is fitted on the upper part of the output shaft of the servo motor reducer. The workpiece rotating disk is fixedly connected to the key connecting plate. The positioning assembly includes a workpiece positioning disk disposed on the outer edge of the workpiece rotating disk. The workpiece positioning disk is detachably connected to the workpiece rotating disk. Several protruding positioning rings are arranged radially at intervals on the workpiece positioning disk, and the workpiece to be processed can be fitted onto the corresponding positioning rings. A detection assembly is also provided on one side of the frame body. The detection assembly includes at least two proximity sensors arranged circumferentially at intervals along the workpiece rotating disk.

[0006] Furthermore, the workpiece angular positioning mechanism suitable for automated processing is further provided with a table air blowing cleaning component on the edge of the frame body. The table air blowing cleaning component includes an air nozzle and an electromagnetic reversing valve for controlling the start and stop of the air nozzle. The air nozzle is snapped into the frame body, one end of the air nozzle is connected to a high-pressure air source through a pipe, and the other end of the air nozzle faces the workpiece rotating disk.

[0007] Furthermore, in the workpiece angular positioning mechanism applicable to automated processing, the proximity sensors are movably connected to the frame body via corresponding brackets. Each bracket includes a vertically arranged crossbeam and a vertical plate. A guide rail extending radially along the workpiece rotating disk is provided on the frame body. A guide groove matching the guide rail is provided at the bottom of the vertical plate. When the vertical plate slides along the guide rail, it can drive the proximity sensor to approach or move away from the workpiece positioning disk. Elongated holes extending axially are also provided on the crossbeam and the vertical plate. The crossbeam is movably connected to the vertical plate via T-bolts passing through the elongated holes in the vertical plate. The proximity sensor is movably connected to the crossbeam via bolts passing through the elongated holes in the crossbeam.

[0008] Furthermore, the workpiece angular positioning mechanism suitable for automated processing has a bearing adjusting shim on the upper end face of the inner ring of the tapered roller bearing, and the tapered roller bearing and the bearing adjusting shim are tightly fitted together.

[0009] Furthermore, the workpiece angular positioning mechanism applicable to automated processing has a rectangular hollow shell below the frame body, a servo motor and a servo motor reducer are installed in the cavity of the shell, a base is provided at the lower end of the shell, and adjustable anchor bolt cups are provided at the four corners of the bottom of the base.

[0010] Furthermore, the workpiece angular positioning mechanism suitable for automated processing is provided with a lifting ring on the edge of the frame body, a heat dissipation sheet metal plate on the front side of the housing, and a stringer plug interface on the right side of the housing.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model relates to a workpiece angular positioning mechanism applicable to automated machining, comprising a frame assembly, a rotating assembly, and a positioning assembly. A detection assembly is also provided on one side of the frame body. The detection assembly includes at least two proximity sensors spaced circumferentially along the workpiece rotating disk. The workpiece rotating disk is mounted on the upper part of the output shaft of the servo motor reducer. A workpiece positioning disk is detachably connected to the workpiece rotating disk. Several protruding positioning rings are arranged radially at intervals on the workpiece positioning disk. During operation, the servo motor drives the workpiece rotating disk through the output shaft of the servo motor reducer. Simultaneously, the workpiece rotating disk rotates, and the workpiece to be processed rotates synchronously through the workpiece positioning disk. When the proximity sensors detect two circular protrusions on the workpiece, the servo motor stops rotating, completing the angular positioning of the workpiece. This ensures the continuity and reliability of the automated production line, guarantees the consistency of workpiece processing, and improves processing efficiency. Furthermore, the workpiece assembly can be quickly and manually replaced, accommodating the positioning requirements of various workpieces. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the workpiece angular positioning mechanism applicable to automated machining according to this utility model. Figure 1 ;

[0014] Figure 2 This is a three-dimensional structural diagram of the workpiece angular positioning mechanism applicable to automated machining according to this utility model. Figure 2 ;

[0015] Figure 3 This is a cross-sectional structural schematic diagram of the workpiece angular positioning mechanism applicable to automated processing according to this utility model;

[0016] Figure 4 yes Figure 3 A magnified structural diagram of part A in the middle;

[0017] Figure 5 This is a schematic diagram of a typical target component structure for a workpiece angular positioning mechanism applicable to automated processing according to this utility model;

[0018] In the above diagram: 1-Frame assembly; 11-Frame body; 12-Heat dissipation sheet metal plate; 13-Adjustable anchor bolt feet; 14-Stringer plug interface; 2-Tabletop air blowing cleaning assembly; 21-Air nozzle; 3-Rotation assembly; 31-Mounting plate; 32-Bearing seat; 33-Tap roller bearing; 34-Bearing adjusting pad; 35-Servo motor reducer; 36-Servo motor; 37-Key connecting plate; 4-Positioning assembly; 41-Workpiece positioning plate; 42-Workpiece rotating plate; 43-Key connecting plate clamping block; 5-Detection assembly; 51-Bracket; 52-Proximity sensor. Detailed Implementation

[0019] To better understand this utility model, the following embodiments further illustrate its content. However, the content of this utility model is not limited to the following embodiments. It should be noted that the innovation of this utility model is the mechanical structure of the workpiece angular positioning mechanism applicable to automated processing. The workpiece angular positioning mechanism applicable to automated processing requires the support of a control system when it is working. The control system adopts existing technology, so the control system will not be described in detail.

[0020] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0023] Combined with appendix Figure 1-4 This invention provides a detailed description of a workpiece angular positioning mechanism suitable for automated machining, comprising a frame assembly 1, a rotating assembly 3, and a positioning assembly 4. The frame assembly 1 includes a horizontally arranged frame body 11, with a countersunk hole penetrating its upper and lower end faces in the middle of the frame body 11. The rotating assembly 3 includes a servo motor 36 and a servo motor reducer 35 disposed below the frame body 11. The servo motor 36 and the servo motor reducer 35 are connected by a key or flange. A tapered roller shaft is fitted onto the output shaft of the servo motor reducer 35. The outer ring of the tapered roller bearing 33 is fixedly connected to the mounting plate 31, which is fixedly embedded in the countersunk hole, via the bearing housing 32. A key connecting disc 37, a T-shaped sleeve structure, is keyed to the upper end of the output shaft of the servo motor reducer 35. A key connecting disc clamping block 43 is screwed to the upper end of the key connecting disc 37, and is fixedly connected to the upper end of the output shaft of the servo motor reducer 35, thus achieving axial positioning of the key connecting disc 37 and the workpiece rotary disk 42. A workpiece rotating disk 42 is sleeved on the upper part of the shaft. The upper end of the key connecting disk 37 is connected to the workpiece rotating disk 42 by a pin and screw. The positioning component 4 includes a workpiece positioning disk 41 set on the outer edge of the workpiece rotating disk 42. The workpiece positioning disk 41 and the workpiece rotating disk 42 are detachably connected. The workpiece positioning disk 41 and the workpiece rotating disk 42 are connected by screws. The workpiece positioning disk 41 can be quickly replaced. Several protruding positioning rings are arranged radially on the workpiece positioning disk 41. Positioning rings with different outer diameters can match the workpieces to be processed with corresponding inner diameters. The workpieces to be processed can be sleeved on the corresponding positioning rings. The workpiece positioning disk 41 is made of nylon material, which will not scratch the surface of the workpiece. The workpiece is relatively heavy. The friction between the workpiece and the workpiece positioning disk 41 can ensure that there is no relative sliding between them when rotating. After long-term use, the workpiece positioning disk 41 can be replaced when it is worn. A detection component 5 is also provided on one side of the frame body 11. The detection component 5 includes at least two proximity sensors 52 arranged circumferentially along the workpiece rotating disk 42.

[0024] During operation, the servo motor 36 starts, driving the servo motor reducer 35 to rotate. The output shaft of the servo motor reducer 35 drives the workpiece rotary disk 42 to rotate. Simultaneously, the workpiece rotates through the workpiece positioning disk 41, causing the workpiece to be processed to rotate synchronously. Two proximity sensors 52 start working. Along the rotation direction, when the first proximity sensor 52 senses the first round boss of the workpiece, the speed of the servo motor 36 begins to decrease. When the first proximity sensor 52 senses the second round boss of the workpiece, and the second proximity sensor 52 senses the first round boss of the workpiece, that is, when both proximity sensors 52 simultaneously sense two round bosses on the workpiece, the servo motor 36 stops rotating, completing the angular positioning of the workpiece. This ensures the continuity and reliability of the automated production line, guarantees the consistency of workpiece processing, and improves processing efficiency. In addition, workpiece components can be quickly and manually replaced, accommodating the positioning requirements of various workpieces.

[0025] As an optional design, the workpiece angular positioning mechanism suitable for automated processing is preferably provided with a table air blowing cleaning component 2 on the edge of the frame body 11. The table air blowing cleaning component 2 includes an air nozzle 21 and an electromagnetic reversing valve for controlling the start and stop of the air nozzle. The air nozzle 21 is snapped into the frame body 11. One end of the air nozzle 21 is connected to a high-pressure air source through a pipe, and the other end of the air nozzle 21 faces the workpiece rotating disk 42.

[0026] As an optional design, the workpiece angular positioning mechanism suitable for automated processing is preferred. The proximity sensors 52 are movably connected to the frame body 11 via corresponding brackets 51. Each bracket 51 includes a vertically arranged crossbeam and a vertical plate. A guide rail extending radially along the workpiece rotating disk 42 is provided on the frame body 11. A guide groove matching the guide rail is provided at the bottom of the vertical plate. When the vertical plate slides along the guide rail, it can drive the proximity sensors 52 to approach or move away from the workpiece positioning disk 41. The crossbeam and the vertical plate are also provided with elongated holes extending along their axial directions. The crossbeam is movably connected to the vertical plate via T-bolts passing through the elongated holes in the vertical plate. The proximity sensors 52 are movably connected to the crossbeam via bolts passing through the elongated holes in the crossbeam. The proximity sensors 52 are sealed electromagnetic proximity sensors, which can detect the workpiece angular position without physical contact, eliminating the mechanical friction between the traditional positioning pin and the groove, avoiding the decrease in accuracy due to wear, extending the equipment life, and being resistant to environments such as oil, cutting fluid, and metal dust. They can adapt to harsh environments, eliminate complex mechanical locking devices, and reduce mechanical failure points.

[0027] As an optional design, the preferred workpiece angular positioning mechanism suitable for automated processing has a bearing adjusting pad 34 provided on the upper end face of the inner ring of the tapered roller bearing 33, and the tapered roller bearing 33 and the bearing adjusting pad 34 are tightly fitted together.

[0028] As an optional design, the preferred workpiece angular positioning mechanism for automated processing has a rectangular hollow housing below the frame body 11, with the servo motor 36 and servo motor reducer 35 housed in the cavity of the housing, a base at the lower end of the housing, and adjustable anchor bolt cups 13 at the four corners of the bottom of the base.

[0029] As an optional design, the workpiece angular positioning mechanism suitable for automated processing is preferred. A lifting ring is also provided on the edge of the frame body 11, a heat dissipation sheet metal plate 12 is provided on the front side of the housing, and a stringer plug interface 14 is provided on the right side of the housing. The stringer plug interface 14 adopts a modular and standardized design, which facilitates direct and quick insertion.

[0030] The working process of this utility model is as follows:

[0031] The robot places the workpiece on the upper side of the workpiece positioning disk 41 for contour positioning. After the robot leaves and the confirmation is completed, the control system controls the servo motor 36 to start rotating. The servo motor 36 drives the servo motor reducer 35 to rotate. The output shaft of the servo motor reducer 35 is connected to the key connection disk 37 through a key, driving the key connection disk 37 to rotate. The workpiece positioning disk 41 drives the workpiece to rotate synchronously. At the same time, two proximity sensors 52 start working. Along the rotation direction, when the first proximity sensor 52 senses the first round boss of the workpiece, the speed of the servo motor 36 begins to decrease. When the first proximity sensor 52 senses the second round boss of the workpiece, and the second proximity sensor 52 senses the first round boss of the workpiece, that is, when both proximity sensors 52 sense two round bosses of the workpiece at the same time, the servo motor 36 stops rotating, completing the angular positioning of the workpiece. Then, the control system instructs the robot to pick up the workpiece and send it into the machining center at a fixed angle by the angular positioning mechanism for processing, completing the processing of the part.

[0032] This utility model provides a workpiece angular positioning mechanism applicable to automated processing, ensuring the continuity and reliability of automated production line operation, ensuring the consistency of workpiece processing, and improving processing efficiency. In addition, the workpiece positioning plate 41 can be quickly replaced manually, and is compatible with the positioning requirements of various processed workpieces.

[0033] The above description is only an application implementation of this utility model, but the protection scope of this utility model is not limited thereto and cannot be used to limit the scope of rights of this utility model. Any equivalent changes made according to the technical solution of this utility model should be included within the protection scope of this utility model.

Claims

1. A workpiece angular positioning mechanism suitable for automated machining, characterized in that: The system includes a frame assembly, a rotating assembly, and a positioning assembly. The frame assembly includes a horizontally positioned frame body with a recessed hole penetrating its upper and lower ends in the middle of the frame body. The rotating assembly includes a servo motor and a servo motor reducer positioned below the frame body. A tapered roller bearing is fitted onto the output shaft of the servo motor reducer, and the outer ring of the tapered roller bearing is fixedly connected to a mounting plate fixedly embedded in the recessed hole via a bearing housing. A key connecting plate is keyed to the upper end of the output shaft of the servo motor reducer, and a workpiece rotating disk is fitted onto the upper part of the output shaft of the servo motor reducer. The workpiece rotating disk is fixedly connected to the key connecting plate. The positioning assembly includes a workpiece positioning disk positioned on the outer edge of the workpiece rotating disk. The workpiece positioning disk is detachably connected to the workpiece rotating disk. Several protruding positioning rings are arranged radially at intervals on the workpiece positioning disk, and the workpiece to be processed can be fitted onto the corresponding positioning rings. A detection assembly is also provided on one side of the frame body. The detection assembly includes at least two proximity sensors arranged circumferentially at intervals along the workpiece rotating disk.

2. The workpiece angular positioning mechanism applicable to automated processing according to claim 1, characterized in that: in The edge of the frame body is also provided with a table air blowing cleaning component. The table air blowing cleaning component includes an air nozzle and an electromagnetic reversing valve for controlling the start and stop of the air nozzle. The air nozzle is snapped to the frame body. One end of the air nozzle is connected to a high-pressure air source through a pipe, and the other end of the air nozzle faces the workpiece rotating disk.

3. The workpiece angular positioning mechanism applicable to automated processing according to claim 1 or 2, characterized in that: The proximity sensors are movably connected to the frame body via corresponding brackets. Each bracket includes a vertically arranged crossbeam and a vertical plate. A guide rail extending radially along the workpiece rotating disk is provided on the frame body. A guide groove matching the guide rail is provided at the bottom of the vertical plate. When the vertical plate slides along the guide rail, it can drive the proximity sensor to approach or move away from the workpiece positioning disk. The crossbeam and the vertical plate are also provided with elongated holes extending along their axial direction. The crossbeam is movably connected to the vertical plate via T-bolts passing through the elongated holes in the vertical plate. The proximity sensor is movably connected to the crossbeam via bolts passing through the elongated holes in the crossbeam.

4. The workpiece angular positioning mechanism applicable to automated processing according to claim 3, characterized in that: A bearing adjusting shim is provided on the upper end face of the inner ring of the tapered roller bearing, and the tapered roller bearing and the bearing adjusting shim are tightly fitted together.

5. The workpiece angular positioning mechanism applicable to automated processing according to claim 3, characterized in that: in A rectangular hollow housing is located below the main frame. The servo motor and servo motor reducer are located in the cavity of the housing. A base is located at the lower end of the housing, and adjustable anchor bolt cups are located at the four corners of the bottom of the base.

6. The workpiece angular positioning mechanism applicable to automated processing according to claim 5, characterized in that: Lifting rings are provided on the edge of the frame body, a heat dissipation sheet metal plate is provided on the front side of the housing, and a stringer plug interface is provided on the right side of the housing.

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