Positioning mechanism for induction hardening

Abstract

The utility model discloses a positioning mechanism for induction quenching, which relates to the technical field of induction quenching and comprises a workpiece placing platform, and a workpiece coarse positioning device and a workpiece fine positioning device are arranged on the workpiece placing platform. The workpiece coarse positioning device comprises a lifting connecting disc, a lower tip and a lifting air cylinder, the lower tip is vertically arranged on the lifting connecting disc through a connecting shaft, and a driving rod of the lifting air cylinder is connected with the lifting connecting disc and used for driving the lifting connecting disc to ascend and descend. The workpiece fine positioning device comprises a positioning seat and a positioning disc, the positioning disc is vertically arranged on the positioning seat through a connecting column, and a positioning hole is formed in the center of the positioning disc. According to the utility model, the structure of the workpiece positioning mechanism is further simplified, the cost is reduced, the positioning accuracy is improved, the equipment loss caused by inaccurate positioning is reduced, the detection speed is high, the overall machining efficiency of a machine tool is improved to a certain extent, and better practical application value and economic benefits for promoting production are achieved.

Description

Technical Field

[0001] This utility model relates to the field of induction hardening technology, specifically to a positioning mechanism for induction hardening. Background Technology

[0002] Positioning mechanisms are widely used in industries such as induction hardening equipment to accurately position workpieces for subsequent processing. Currently, various positioning mechanisms exist on the market, but they all have different drawbacks. For example, some use upper and lower centers to position the workpiece, but this method requires different lower centers for workpieces with different internal cavities, resulting in high costs and complex structures. Some positioning mechanisms use a chuck-like structure, which is complex and has a low fault tolerance rate. For workpieces with irregular internal cavities, custom-made positioning components are often required, limiting the applicability of a single positioning mechanism. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a positioning mechanism for induction hardening, which further simplifies the structure of the workpiece positioning mechanism, reduces costs, improves positioning accuracy, reduces equipment losses caused by inaccurate positioning, has a fast detection speed, and improves the overall processing efficiency of machine tools to a certain extent. It has good practical application value and promotes economic benefits in production.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a positioning mechanism for induction hardening, comprising a workpiece placement platform, wherein a coarse workpiece positioning device and a fine workpiece positioning device are provided on the workpiece placement platform; the coarse workpiece positioning device comprises a lifting connecting plate, a lower center and a lifting cylinder, wherein the lower center is vertically mounted on the lifting connecting plate via a connecting shaft, and the drive rod of the lifting cylinder is connected to the lifting connecting plate for driving the lifting connecting plate to move up and down; the fine workpiece positioning device comprises a positioning seat and a positioning plate, wherein the positioning plate is vertically mounted on the positioning seat via a connecting column, and a positioning hole is provided at the center of the positioning plate.

[0005] A further improvement is that the workpiece placement platform is equipped with a first incoming material detection switch that is compatible with the workpiece coarse positioning device.

[0006] A further improvement is that the workpiece placement platform is equipped with a second incoming material detection switch that is compatible with the workpiece precision positioning device.

[0007] A further improvement is that a support plate is provided below the workpiece placement platform, and the workpiece placement platform is fixedly connected to the support plate by several support columns.

[0008] A further improvement is that a first cylinder position detection switch adapted to the lifting cylinder is provided on the side of the workpiece placement platform.

[0009] A further improvement is that the workpiece placement platform is equipped with a workpiece distance detection switch that is compatible with the workpiece coarse positioning device.

[0010] A further improvement is that a workpiece visual inspection component is provided on the workpiece placement platform.

[0011] A further improvement is that the workpiece visual inspection component includes a bracket, on which an inspection lens is mounted.

[0012] A further improvement is that the workpiece visual inspection component also includes a transverse cylinder and a lens cover; the lens cover is slidably mounted on the inspection lens, the transverse cylinder is mounted on the bracket, and the drive rod of the transverse cylinder is connected to the lens cover for driving the lens cover to move horizontally.

[0013] A further improvement is that a second cylinder position detection switch adapted to the transverse cylinder is provided on the side of the bracket.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model simplifies the workpiece positioning mechanism structure, reduces costs, improves positioning accuracy, reduces equipment losses caused by inaccurate positioning, and increases detection speed. It also improves the overall processing efficiency of machine tools to a certain extent, and has good practical application value and economic benefits in promoting production.

[0016] 2. In this utility model, a set of corresponding switches is used to detect the outer surface of the workpiece. The switches respond with different electrical signals based on differences in the workpiece's surface diameter, thereby determining the workpiece's position. The workpiece is then placed at a precise positioning point, and subsequently gripped by the next gripper for further processing. Compared to traditional positioning mechanisms, this mechanism is applicable to workpieces with various outer surfaces, has a simple structure, and offers fast detection speed, thus improving overall processing efficiency to a certain extent.

[0017] 3. In this invention, a vision component photographs the inner cavity of the workpiece, compares the image with a standard image set in the system to determine the angle difference, and then transmits the result to the gripping mechanism via an electrical signal. The gripping mechanism rotates the workpiece until it matches the standard image, places it at the precision positioning point, and then the next gripper picks it up for subsequent processing. Compared to traditional positioning mechanisms, this mechanism is applicable to various types of inner cavity workpieces, has a simple structure, fast detection speed, and can improve overall processing efficiency to a certain extent. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the positioning mechanism in an embodiment of the present utility model;

[0019] Figure 2This is a schematic diagram of the workpiece placement platform in an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the workpiece rough positioning device in an embodiment of the present invention;

[0021] Figure 4 This is a cross-sectional view of the workpiece rough positioning device in an embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram of the workpiece precision positioning device in an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the positioning mechanism in Embodiment 1 of this utility model;

[0024] Figure 7 This is a top view of the positioning mechanism in Embodiment 1 of this utility model;

[0025] Figure 8 The working principle of the positioning mechanism in Embodiment 1 of this utility model Figure 1 ;

[0026] Figure 9 The working principle of the positioning mechanism in Embodiment 1 of this utility model Figure 2 ;

[0027] Figure 10 This is a schematic diagram of the positioning mechanism in Embodiment 2 of this utility model;

[0028] Figure 11 This is a top view of the positioning mechanism in Embodiment 2 of this utility model;

[0029] Figure 12 This is a schematic diagram of the workpiece visual inspection component in Embodiment 2 of this utility model;

[0030] Figure 13 for Figure 12 A schematic diagram of the structure after removing the lens hood;

[0031] Figure 14 This is a schematic diagram illustrating the working principle of the positioning mechanism in Embodiment 2 of this utility model.

[0032] Figure label:

[0033] 1-Workpiece placement platform; 11-First incoming material detection switch; 12-Second incoming material detection switch; 13-Support plate; 14-Support column; 15-First cylinder position detection switch; 16-Workpiece distance detection switch;

[0034] 2-Workpiece rough positioning device; 21-Lifting connecting plate; 22-Lifting cylinder; 23-Connecting shaft; 24-Lower center;

[0035] 3-Workpiece precision positioning device; 31-Positioning seat; 32-Connecting column; 33-Positioning plate; 34-Positioning hole;

[0036] 4-Workpiece visual inspection component; 41-Bracket; 42-Transverse cylinder; 43-Inspection lens; 44-Second cylinder position detection switch; 45-Lens protective cover. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0038] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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. They should not be construed as limiting the specific protection scope of this utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0040] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0041] See Figure 1 As shown, this utility model embodiment provides a positioning mechanism for induction hardening, including a workpiece placement platform 1, on which a workpiece coarse positioning device 2 and a workpiece fine positioning device 3 are provided.

[0042] See Figure 2As shown, a support plate 13 is provided below the workpiece placement platform 1, and the workpiece placement platform 1 is fixedly connected to the support plate 13 by several support columns 14. A first incoming material detection switch 11 adapted to the workpiece coarse positioning device 2 is provided on the workpiece placement platform 1. A second incoming material detection switch 12 adapted to the workpiece fine positioning device 3 is provided on the workpiece placement platform 1. A first cylinder position detection switch 15 adapted to the lifting cylinder 22 is provided on the side of the workpiece placement platform 1.

[0043] See Figure 3 and Figure 4 As shown, the workpiece rough positioning device 2 includes a lifting connecting plate 21, a lower center 24 and a lifting cylinder 22. The lower center 24 is vertically mounted on the lifting connecting plate 21 via a connecting shaft 23. The drive rod of the lifting cylinder 22 is connected to the lifting connecting plate 21 and is used to drive the lifting connecting plate 21 to lift.

[0044] See Figure 5 As shown, the workpiece precision positioning device 3 includes a positioning base 31 and a positioning disk 33. The positioning disk 33 is vertically mounted on the positioning base 31 via a connecting column 32, and a positioning hole 34 is provided at the center of the positioning disk 33.

[0045] The present invention will be further illustrated below through two embodiments.

[0046] Example 1: Workpiece positioning mechanism based on the outer surface of the workpiece

[0047] See Figure 6 and Figure 7 As shown, this utility model embodiment provides a positioning mechanism for induction hardening, including a workpiece placement platform 1, on which a workpiece coarse positioning device 2 and a workpiece fine positioning device 3 are provided.

[0048] A support plate 13 is provided below the workpiece placement platform 1, and the workpiece placement platform 1 is fixedly connected to the support plate 13 by several support columns 14. A first incoming material detection switch 11 adapted to the workpiece coarse positioning device 2 is provided on the workpiece placement platform 1. A second incoming material detection switch 12 adapted to the workpiece fine positioning device 3 is provided on the workpiece placement platform 1. A first cylinder position detection switch 15 adapted to the lifting cylinder 22 is provided on the side of the workpiece placement platform 1. Specifically, a workpiece distance detection switch 16 adapted to the workpiece coarse positioning device 2 is provided on the workpiece placement platform 1.

[0049] The workpiece rough positioning device 2 includes a lifting connecting plate 21, a lower center 24 and a lifting cylinder 22. The lower center 24 is vertically mounted on the lifting connecting plate 21 via a connecting shaft 23. The drive rod of the lifting cylinder 22 is connected to the lifting connecting plate 21 and is used to drive the lifting connecting plate 21 to lift.

[0050] The workpiece precision positioning device 3 includes a positioning base 31 and a positioning disk 33. The positioning disk 33 is vertically mounted on the positioning base 31 via a connecting column 32, and a positioning hole 34 is provided at the center of the positioning disk 33.

[0051] The working principle of this utility model embodiment is as follows:

[0052] See Figure 8 and Figure 9 As shown, when the workpiece arrives at the workpiece positioning mechanism from the previous sequence, the previous sequence gripping robot places the workpiece at the workpiece coarse positioning device. The workpiece coarse positioning device is equipped with a first incoming material detection switch. Then, the next sequence gripping mechanism picks up the workpiece and lifts it. The first incoming material detection switch and the workpiece distance detection switch work together to detect the distance. The next sequence gripping mechanism rotates the workpiece until the workpiece distance detection switch transmits an electrical signal that meets the set value. Then, the workpiece is placed at the workpiece fine positioning device. The workpiece fine positioning device can further ensure the accuracy of workpiece positioning. The fine positioning device is equipped with a second incoming material detection switch. After the workpiece is placed, subsequent processes can continue.

[0053] This invention detects the outer surface of a workpiece. By analyzing the difference in workpiece surface diameter, a switch generates different electrical signals, thus determining the workpiece's position. The workpiece is then placed at a precise positioning point, and subsequently gripped by a gripper for further processing. Compared to traditional positioning mechanisms, this mechanism is applicable to workpieces with various outer surfaces, has a simple structure, and offers fast detection speed, thereby improving overall processing efficiency. It avoids the cost issues associated with different positioning apexes due to different workpiece outer surfaces. By using a gripper to rotate the workpiece, the workpiece positioning mechanism structure is further simplified, reducing costs, improving positioning accuracy, minimizing equipment losses caused by inaccurate positioning, and offering fast detection speed. This significantly improves the overall processing efficiency of the machine tool, demonstrating good practical application value and economic benefits in promoting production.

[0054] Example 2: Workpiece positioning mechanism for internal cavity induction hardening

[0055] See Figure 10 and Figure 11 As shown, this utility model embodiment provides a positioning mechanism for induction hardening, including a workpiece placement platform 1, on which a workpiece coarse positioning device 2 and a workpiece fine positioning device 3 are provided.

[0056] A support plate 13 is provided below the workpiece placement platform 1, and the workpiece placement platform 1 is fixedly connected to the support plate 13 by several support columns 14. A first incoming material detection switch 11 adapted to the workpiece coarse positioning device 2 is provided on the workpiece placement platform 1. A second incoming material detection switch 12 adapted to the workpiece fine positioning device 3 is provided on the workpiece placement platform 1. A first cylinder position detection switch 15 adapted to the lifting cylinder 22 is provided on the side of the workpiece placement platform 1.

[0057] The workpiece rough positioning device 2 includes a lifting connecting plate 21, a lower center 24 and a lifting cylinder 22. The lower center 24 is vertically mounted on the lifting connecting plate 21 via a connecting shaft 23. The drive rod of the lifting cylinder 22 is connected to the lifting connecting plate 21 and is used to drive the lifting connecting plate 21 to lift.

[0058] The workpiece precision positioning device 3 includes a positioning base 31 and a positioning disk 33. The positioning disk 33 is vertically mounted on the positioning base 31 via a connecting column 32, and a positioning hole 34 is provided at the center of the positioning disk 33.

[0059] See Figure 12 and Figure 13 As shown, a workpiece visual inspection component 4 is provided on the workpiece placement platform 1. Specifically, the workpiece visual inspection component 4 includes a bracket 41, on which an inspection lens 43 is mounted. The workpiece visual inspection component 4 also includes a transverse cylinder 42 and a lens protective cover 45; the lens protective cover 45 is slidably mounted on the inspection lens 43, and the transverse cylinder 42 is mounted on the bracket 41, with its drive rod connected to the lens protective cover 45 for driving the lens protective cover 45 to move horizontally. A second cylinder position detection switch 44, adapted to the transverse cylinder 42, is provided on the side of the bracket 41.

[0060] The working principle of this utility model embodiment is as follows:

[0061] See Figure 14 As shown, when the workpiece arrives at the positioning mechanism from the previous sequence, the previous sequence gripping robot places the workpiece at the workpiece coarse positioning device. The workpiece coarse positioning device is equipped with a first incoming material detection switch. Then, the next sequence gripping mechanism picks up the workpiece and moves it above the vision inspection component. The protective cover lateral movement cylinder drives the lens protective cover to open, and the inspection lens inspects the workpiece. After the inspection is completed, an electrical signal is transmitted to the next sequence gripping mechanism. The protective cover lateral movement cylinder drives the lens protective cover to close, and the next sequence gripping mechanism rotates the workpiece to the standard position. Then, the workpiece is placed at the workpiece fine positioning device. The workpiece fine positioning device can further ensure the accuracy of workpiece positioning. The workpiece fine positioning device is equipped with a second incoming material detection switch. After the workpiece is placed, subsequent processes can continue.

[0062] This invention uses a vision component to photograph the inner cavity of a workpiece, compares the image with a standard image set in the system to determine the angle difference, and then transmits the result to a gripping mechanism via an electrical signal. The gripping mechanism rotates the workpiece until it matches the standard image, places it at a precise positioning point, and then the next gripper picks it up for subsequent processing. Compared to traditional positioning mechanisms, this mechanism is applicable to various types of workpieces with different internal cavities, has a simple structure, and offers fast detection speed, thus improving overall processing efficiency to a certain extent.

[0063] The use of visual inspection avoids the cost issues associated with different positioning centers due to different workpieces and internal cavities. The use of a gripper to rotate the workpiece further simplifies the positioning mechanism structure, reduces costs, improves positioning accuracy, reduces equipment losses caused by inaccurate positioning, and offers fast inspection speed. This improves the overall processing efficiency of the machine tool to a certain extent, and has good practical application value and economic benefits in promoting production.

[0064] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0065] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on this utility model all fall within the protection scope of this utility model and should be defined by the claims.

Claims

1. A positioning mechanism for induction hardening, comprising a workpiece placement platform (1), characterized in that: The workpiece placement platform (1) is equipped with a coarse workpiece positioning device (2) and a fine workpiece positioning device (3); The workpiece rough positioning device (2) includes a lifting connecting plate (21), a lower center (24) and a lifting cylinder (22). The lower center (24) is vertically mounted on the lifting connecting plate (21) via a connecting shaft (23). The drive rod of the lifting cylinder (22) is connected to the lifting connecting plate (21) and is used to drive the lifting connecting plate (21) to lift. The workpiece precision positioning device (3) includes a positioning seat (31) and a positioning disk (33). The positioning disk (33) is vertically mounted on the positioning seat (31) via a connecting column (32). A positioning hole (34) is provided at the center of the positioning disk (33).

2. The positioning mechanism for induction hardening according to claim 1, characterized in that: The workpiece placement platform (1) is equipped with a first incoming material detection switch (11) that is compatible with the workpiece coarse positioning device (2).

3. The positioning mechanism for induction hardening according to claim 1, characterized in that: The workpiece placement platform (1) is equipped with a second incoming material detection switch (12) that is compatible with the workpiece precision positioning device (3).

4. The positioning mechanism for induction hardening according to claim 1, characterized in that: A support plate (13) is provided below the workpiece placement platform (1), and the workpiece placement platform (1) is fixedly connected to the support plate (13) by a number of support columns (14).

5. The positioning mechanism for induction hardening according to claim 1, characterized in that: The side of the workpiece placement platform (1) is provided with a first cylinder position detection switch (15) adapted to the lifting cylinder (22).

6. The positioning mechanism for induction hardening according to claim 1, characterized in that: The workpiece placement platform (1) is equipped with a workpiece distance detection switch (16) that is compatible with the workpiece coarse positioning device (2).

7. The positioning mechanism for induction hardening according to claim 1, characterized in that: The workpiece placement platform (1) is equipped with a workpiece visual inspection component (4).

8. The positioning mechanism for induction hardening according to claim 7, characterized in that: The workpiece visual inspection component (4) includes a bracket (41) on which an inspection lens (43) is provided.

9. The positioning mechanism for induction hardening according to claim 8, characterized in that: The workpiece visual inspection component (4) also includes a transverse cylinder (42) and a lens cover (45); the lens cover (45) is slidably mounted on the inspection lens (43), the transverse cylinder (42) is mounted on the bracket (41), and the drive rod of the transverse cylinder (42) is connected to the lens cover (45) to drive the lens cover (45) to move horizontally.

10. The positioning mechanism for induction hardening according to claim 9, characterized in that: The side of the bracket (41) is provided with a second cylinder position detection switch (44) that is compatible with the transverse cylinder (42).

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