Shaft part heat treatment supporting tool

Abstract

The utility model relates to the technical field of part treatment, in particular to a shaft part heat treatment supporting tool which comprises a supporting top frame used for heat treatment of shaft parts, a fixed clamping seat and a movable clamping seat are installed at the bottom of the supporting top frame, and part chucks used for clamping the shaft parts are installed at the bottoms of the fixed clamping seat and the movable clamping seat. The shaft part can be accurately positioned through the positioning groove formed in the part chuck, it is ensured that the position of the shaft part is accurate in the heat treatment process, the clamping hydraulic cylinder can extend into the positioning groove through the piston rod to apply clamping force to the shaft part, and it is ensured that clamping is firm. A sliding seat at the top of the movable clamping seat is in sliding fit with a guide groove in the bottom face of the supporting top frame, a screw hole in the sliding seat is in threaded connection with a lead screw, and a servo motor drives the lead screw to rotate, so that the movable clamping seat can slide in the guide groove, the position of the movable clamping seat can be adjusted according to the length of the shaft parts, and the shaft parts of different sizes can be adapted; and the universality and the practicability of the tool are improved.

Description

Technical Field

[0001] This utility model relates to the field of parts processing technology, specifically to a heat treatment support fixture for shaft parts. Background Technology

[0002] In the field of mechanical manufacturing, shafts are key basic components widely used in various mechanical equipment. The quality of their heat treatment plays a decisive role in the mechanical properties and service life of these parts. During the heat treatment process of shafts, supporting fixtures are indispensable auxiliary equipment, directly affecting the positioning accuracy, stability, and final heat treatment effect of the shafts. Existing heat treatment supports for shafts often struggle to achieve precise positioning, leading to displacement of the shafts during heat treatment. This results in uneven heat treatment, affecting the consistency of part performance, reducing product yield, and requiring frequent replacement or adjustment of the support structure for shafts of different lengths and diameters, indicating poor adaptability. Utility Model Content

[0003] The purpose of this utility model is to provide a heat treatment support fixture for shaft parts to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A heat treatment support fixture for shaft parts includes a support top frame for heat treatment of shaft parts. The bottom of the support top frame is equipped with a fixed clamp and a movable clamp. The bottom of both the fixed clamp and the movable clamp is equipped with a part chuck for clamping the shaft parts.

[0006] The top of the movable clamp is provided with a slide block, and the bottom surface of the support top frame is provided with a guide groove that is adapted to the cross-sectional size of the slide block and slides in fit. The slide block is provided with a screw hole.

[0007] The surface of the part chuck that contacts the shaft part is provided with a positioning groove. Both the fixed clamp and the movable clamp are vertically installed with clamping hydraulic cylinders. The bottom of the piston rod of the clamping hydraulic cylinder extends into the positioning groove.

[0008] A servo motor is installed at one end of the support top frame near the movable clamp. The output shaft of the servo motor is connected to a lead screw set in the guide groove. The lead screw is adapted to the size of the screw hole and is threadedly connected.

[0009] Preferably, a connecting column for connection to an external robotic arm or operating lever is installed at the top center of the support frame.

[0010] Preferably, a mounting base is coaxially connected to the top of the connecting column.

[0011] Preferably, the guide groove of the support top frame is fitted with a bearing for fixing the lead screw at the end away from the servo motor.

[0012] Preferably, a replaceable clamping block is coaxially mounted on the bottom of the piston rod of the clamping hydraulic cylinder.

[0013] Preferably, the replaceable clamping block is connected to the center thread at the bottom of the piston rod of the clamping hydraulic cylinder via a screw.

[0014] Preferably, the bottom surface of the positioning groove has an arc-shaped structure.

[0015] Compared with existing technologies, the beneficial effects of this utility model are:

[0016] 1. In this heat treatment support fixture for shaft parts, the supporting top frame provides a stable support foundation for the entire fixture. The positioning groove on the part chuck can accurately position the shaft parts, ensuring their accurate position during the heat treatment process. The clamping hydraulic cylinder can extend into the positioning groove through the piston rod to apply clamping force to the shaft parts, ensuring firm clamping. The slide on the top of the movable clamp is slidably engaged with the guide groove on the bottom surface of the supporting top frame. At the same time, the threaded hole on the slide is connected to the lead screw. The servo motor drives the lead screw to rotate, allowing the movable clamp to slide within the guide groove. This allows the position of the movable clamp to be adjusted according to the length of the shaft parts, adapting to shaft parts of different sizes and improving the versatility and practicality of the fixture.

[0017] 2. In this heat treatment support fixture for shaft parts, a connecting column is installed at the top center of the support top frame to connect with an external robotic arm or operating rod. The top of the connecting column is coaxially connected to a mounting base, which allows the heat treatment support fixture for shaft parts to be easily connected to an external robotic arm or operating rod. The fixture can be flexibly transported, positioned and operated with the help of external equipment, improving the degree of automation and ease of use in the heat treatment production line, and adapting to different working scenarios and process requirements.

[0018] 3. In this heat treatment support fixture for shaft parts, a replaceable clamping block is coaxially mounted at the bottom of the piston rod of the clamping hydraulic cylinder. The replaceable clamping block is connected to the center thread of the bottom of the piston rod of the hydraulic cylinder via a screw, allowing for easy replacement of clamping blocks of different materials, shapes, or sizes when dealing with shaft parts with different surface characteristics or precision requirements. This not only meets diverse clamping needs and improves adaptability to different parts, but also facilitates timely replacement of the clamping blocks after wear, reducing the maintenance cost of the fixture and extending its service life. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the movable clamp of this utility model;

[0023] The meaning of each label in the diagram:

[0024] 10. Support frame; 11. Connecting column; 12. Mounting base; 13. Bearing;

[0025] 20. Fixed clamp;

[0026] 30. Movable clamp; 31. Slide; 32. Clamping hydraulic cylinder; 33. Replaceable clamping block; 34. Screw hole;

[0027] 40. Part chuck; 41. Positioning slot;

[0028] 50. Servo motor; 51. Lead screw;

[0029] 60. Shaft-type parts. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] A heat treatment support fixture for shaft-type parts, such as Figures 1-3As shown, the device includes a support top frame 10 for heat treatment of shaft-type parts 60. A fixed clamp 20 and a movable clamp 30 are mounted on the bottom of the support top frame 10. Both the fixed clamp 20 and the movable clamp 30 have part chucks 40 for clamping the shaft-type parts 60 mounted on their bottoms. A slide 31 is provided on the top of the movable clamp 30. A guide groove with a cross-sectional dimension adapted to and slidingly fitted to the slide 31 is formed on the bottom surface of the support top frame 10. A screw hole 34 is formed on the slide 31. The part chucks 40 contact the shaft-type parts 60. A positioning groove 41 is provided on one side surface of the clamping head 40. A clamping hydraulic cylinder 32 is vertically installed in both the fixed clamping seat 20 and the movable clamping seat 30. The bottom of the piston rod of the clamping hydraulic cylinder 32 extends into the positioning groove 41. A servo motor 50 is installed at one end of the support top frame 10 near the movable clamping seat 30. The output shaft of the servo motor 50 is connected to a lead screw 51 located in a guide groove. The lead screw 51 is threaded and matches the size of the screw hole 34. The support top frame 10 provides a stable support foundation for the entire tooling. The positioning groove 41 on the part chuck 40 can accurately position the shaft part 60, ensuring its accurate position during heat treatment. The clamping hydraulic cylinder 32 can extend its piston rod into the positioning groove 41 to apply clamping force to the shaft part 60, ensuring secure clamping. The slide 31 on the top of the movable clamp 30 slides in conjunction with the guide groove on the bottom surface of the support top frame 10. At the same time, the screw hole 34 on the slide 31 is threadedly connected to the lead screw 51. The servo motor 50 drives the lead screw 51 to rotate, so that the movable clamp 30 can slide in the guide groove. This allows the position of the movable clamp 30 to be adjusted according to the length of the shaft part 60, adapting to shaft parts of different sizes and improving the versatility and practicality of the tooling.

[0033] Furthermore, a connecting column 11 is installed at the top center of the support frame 10 to connect with an external robotic arm or operating lever. A mounting base 12 is coaxially connected to the top of the connecting column 11, which allows the heat treatment support fixture for the shaft-type parts to be easily connected to an external robotic arm or operating lever. The fixture can be flexibly transported, positioned and operated with the help of external equipment, improving the automation level and ease of use in the heat treatment production line, and adapting to different working scenarios and process requirements.

[0034] It is worth noting that the guide groove of the support top frame 10, away from the servo motor 50, is equipped with a bearing 13 for fixing the lead screw 51. This can effectively support one end of the lead screw 51, reduce the radial runout and axial movement of the lead screw 51 during rotation, and ensure the stability and accuracy of the lead screw 51 rotation.

[0035] Specifically, a replaceable clamping block 33 is coaxially mounted on the bottom of the piston rod of the clamping hydraulic cylinder 32. The replaceable clamping block 33 is connected to the center thread of the bottom of the piston rod of the clamping hydraulic cylinder 32 via a screw, which allows for easy replacement of clamping blocks of different materials, shapes, or sizes when dealing with shaft parts 60 with different surface characteristics or precision requirements. This not only meets diverse clamping needs and improves adaptability to different parts, but also facilitates timely replacement of the clamping blocks after wear, reducing tooling maintenance costs and extending the service life of the tooling.

[0036] In addition, the bottom surface of the positioning groove 41 is arc-shaped, which can better fit the outer circular surface of the shaft part 60, increase the contact area with the shaft part, and make the positioning of the shaft part in the positioning groove more stable and reliable.

[0037] The working principle of this utility model's heat treatment support fixture for shaft parts is as follows:

[0038] First, the tooling is connected to an external robotic arm or control lever by using the mounting base 12 at the top of the connecting column 11, which facilitates subsequent operation and movement.

[0039] Next, based on the actual length of the shaft part 60, the servo motor 50 is started; the output shaft of the servo motor 50 drives the lead screw 51 to rotate. Since the lead screw 51 is threadedly connected to the screw hole 34 of the slide block 31 on the movable clamp 30, the movable clamp 30 will slide in the guide groove on the bottom surface of the support top frame 10. When it is adjusted to a suitable position, the servo motor 50 is stopped.

[0040] Subsequently, the two ends of the shaft part 60 are placed in the positioning grooves 41 of the two end part clamps 40 respectively. The arc-shaped bottom surface of the positioning groove 41 can fit tightly against the shaft part 60 to achieve initial positioning. Then, the clamping hydraulic cylinder 32 is activated, and the replaceable clamping block 33 at the bottom of its piston rod extends to further clamp the shaft part 60. The clamping block can be replaced according to the different needs of the shaft part.

[0041] Finally, with the help of a robotic arm or lever, the tooling containing the shaft part 60 is moved into the heat treatment equipment for processing. After the heat treatment is completed, the clamping hydraulic cylinder 32 is controlled to retract the piston rod, releasing the shaft part 60. Then, the tooling is removed from the heat treatment equipment, and the heat-treated shaft part is unloaded, thus completing the entire usage process.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A shaft part heat treatment support tool, characterized by: The application relates to a support top frame (10) for heat treatment of shaft parts (60), the bottom of the support top frame (10) is provided with a fixed clamping seat (20) and a movable clamping seat (30), the bottom of the fixed clamping seat (20) and the movable clamping seat (30) is provided with a part clamping head (40) for clamping the shaft parts (60); The top of the movable clamping seat (30) is provided with a sliding seat (31), the bottom surface of the support top frame (10) is provided with a guide groove which is matched with the cross-sectional dimension of the sliding seat (31) and is in sliding fit, and the sliding seat (31) is provided with a screw hole (34); The side surface of the part clamping head (40) which is in contact with the shaft parts (60) is provided with a positioning groove (41), the fixed clamping seat (20) and the movable clamping seat (30) are vertically provided with clamping hydraulic cylinders (32), and the bottom of the piston rod of the clamping hydraulic cylinders (32) extends into the positioning groove (41); One end of the support top frame (10) which is close to the movable clamping seat (30) is provided with a servo motor (50), the output shaft of the servo motor (50) is connected with a lead screw (51) which is arranged in the guide groove, and the lead screw (51) is matched with the screw hole (34) in size and is in threaded connection.

2. The shaft part heat treatment support tooling of claim 1, wherein: The top center of the support top frame (10) is provided with a connecting column (11) which is connected with an external mechanical arm or an operating rod.

3. The shaft part heat treatment support tooling of claim 2, wherein: The top of the connecting column (11) is coaxially connected with a mounting seat (12).

4. The shaft part heat treatment support tooling of claim 1, wherein: The end of the guide groove of the support top frame (10) which is away from the servo motor (50) is embedded with a bearing (13) for fixing the lead screw (51).

5. The shaft part heat treatment support tooling of claim 1, wherein: The bottom of the piston rod of the clamping hydraulic cylinder (32) is coaxially provided with a replaceable clamping block (33).

6. The shaft part heat treatment support tooling of claim 5, wherein: The replaceable clamping block (33) is connected with the bottom center of the piston rod of the clamping hydraulic cylinder (32) in a threaded mode through a screw rod.

7. The shaft part heat treatment support tooling of claim 1, wherein: The bottom surface of the positioning groove (41) is in an arc structure.

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