Lower tip rotating main shaft structure for induction hardening

Abstract

The utility model discloses a lower tip rotating main shaft structure for induction quenching, which relates to the technical field of induction quenching and comprises a bottom plate, a lower tip rotating component, a driving component and a lifting component, the lower center rotating component comprises a lower center seat, a main shaft and a connecting shaft; the lower center seat is fixedly arranged on the bottom plate; the main shaft is rotatably arranged in the lower center seat; the lower end of the connecting shaft is connected with the main shaft; the upper end of the connecting shaft is provided with a central conical surface positioning clamp; the driving component is used for driving the spindle to rotate; and the lifting component is used for placing a workpiece and driving the workpiece to fall on the central conical surface positioning clamp.

Description

Technical Field

[0001] The utility model relates to the technical field of induction quenching, in particular to a lower center rotating spindle structure used for induction quenching. Background Art

[0002] The spindle rotation mechanism of the lower center is widely used in industries such as automated production lines and induction hardening machine tools to clamp, fix and rotate the workpiece. There are various clamping tools on the market, but they have many defects. For example, when placing the workpiece, it is necessary to manually adjust the position so that the workpiece is aligned with the center of the center. During operation, water often seeps into the lower center, causing corrosion of parts in the mechanism, resulting in jamming of the center, and then uneven quenching of the workpiece. Many lower centers are one-piece centers, which are only suitable for the same workpiece and have a small scope of application. Utility Model Content

[0003] In view of the defects existing in the prior art, the purpose of the utility model is to provide a lower center rotating spindle structure for induction quenching, in which the positioning of the workpiece is completed by dropping the workpiece onto the lower center, thereby reducing labor and improving safety; the lower center seat is driven by the spindle to rotate together to throw out water in time, and a sealing ring is provided to further reduce the probability of water seepage, thereby reducing property losses caused by water seepage and improving economic benefits; the lower center head is installed by tightening with a top screw, and different lower center heads can be replaced with different workpieces, thereby improving versatility, reducing the situation where one lower center can only correspond to one workpiece, and improving economic benefits.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a lower center rotating spindle structure for induction quenching, including a base plate, a lower center rotating component, a driving component and a lifting component; the lower center rotating component includes a lower center seat, a spindle and a connecting shaft; the lower center seat is fixedly arranged on the base plate; the spindle is rotatably arranged in the lower center seat; the lower end of the connecting shaft is connected to the spindle, and the upper end of the connecting shaft is provided with a central conical surface positioning fixture; the driving component is used to drive the spindle to rotate; the lifting component is used to place the workpiece and drive the workpiece to fall on the central conical surface positioning fixture.

[0005] A further improvement is that a truncated cone-shaped positioning part is provided at the upper end of the central cone positioning fixture, the outer cone of the positioning part is inscribed with the inner cone of the workpiece, and a positioning convex ring is provided on the outer side surface of the positioning part.

[0006] Further improvements are: the connecting shaft is a Morse No. 3 seat, and the central cone positioning fixture is installed on the Morse No. 3 seat through a top screw; the upper end of the main shaft is provided with a tapered hole adapted to the Morse No. 3 seat, and the lower end of the Morse No. 3 seat is inserted into the tapered hole.

[0007] A further improvement is that a sealing ring is provided between the main shaft and the lower center seat.

[0008] A further improvement is that the lower end of the main shaft extends out from the lower center seat and is connected to a driven gear; the driving component includes a motor, which is connected to the base plate through a bracket, and the output shaft of the motor is connected to a driving gear meshing with the driven gear.

[0009] A further improvement is that the driven gear is connected to the main shaft through a keyway and is limited by a gear stopper and a limit nut.

[0010] Further improvements are: it also includes a transition rod and a rotating joint; a first threaded hole is provided at the lower end of the main shaft, and the upper end of the transition rod is connected to the first threaded hole through a top thread; a rod thread that is compatible with the limit nut is provided in the middle part of the transition rod; a second threaded hole is provided at the lower end of the transition rod, and the rotating joint is connected to the second threaded hole through a joint thread.

[0011] A further improvement is that a positioning screw hole is provided on the side of the rotary joint, and the bracket is provided with an anti-rotation plate, and the anti-rotation plate is provided with a positioning groove adapted to the positioning screw hole.

[0012] Further improvements are: the lifting component includes a pull plate, a support plate and two cylinders; the cylinder bodies of the two cylinders are installed on the base plate and located on both sides of the lower top rotating component; the two ends of the pull plate are respectively connected to the piston rods of the two cylinders; the support plate is installed on the pull plate through a support column, and the middle of the support plate and the pull plate are provided with avoidance holes that are compatible with the lower top rotating component.

[0013] A further improvement is that a mounting seat matching with the lower top seat is arranged in the middle of the bottom plate, and mounting grooves matching with the cylinder are arranged on both sides of the mounting seat.

[0014] The beneficial effects of the utility model are:

[0015] The utility model completes the positioning of the workpiece by the way that the workpiece falls onto the lower center, thereby reducing labor and improving safety; the main shaft drives the lower center seat to rotate together to throw out water in time, and the sealing ring further reduces the probability of water seepage, reduces the property loss caused by water seepage, and improves economic benefits; the lower center head is installed by means of top screw tightening, and different lower center heads can be replaced with different workpieces, thereby improving versatility, reducing the situation that one lower center can only correspond to one workpiece, and improving economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a lower center rotating spindle structure for induction hardening in an embodiment of the utility model;

[0017] Figure 2It is a cross-sectional view of the lower center rotating spindle structure used for induction quenching in the embodiment of the utility model;

[0018] Figure 3 A cross-sectional view of the lower center rotating component in the embodiment of the utility model;

[0019] Figure 4 This is a working principle diagram of the central cone positioning fixture in the embodiment of the utility model;

[0020] Figure 5 A three-dimensional diagram of a driving component in an embodiment of the utility model;

[0021] Figure 6 It is a three-dimensional diagram of the lifting component in the embodiment of the utility model.

[0022] Reference numerals:

[0023] 1-base plate; 11-mounting seat; 12-mounting slot;

[0024] 2-lower top rotating part; 201-lower top seat; 202-main shaft; 203-connecting shaft; 204-central cone positioning fixture; 205-positioning part; 206-positioning convex ring; 207-driven gear; 208-gear stopper; 209-limiting nut; 210-transition rod; 211-rotating joint; 212-positioning screw hole;

[0025] 3-driving component; 31-motor; 32-bracket; 33-driving gear; 34-anti-rotation plate; 35-positioning slot;

[0026] 4-lifting component; 41-cylinder; 42-pull plate; 43-support column; 44-support plate; 45-avoidance hole. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0028] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0030] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, but cannot be understood as limiting the utility model.

[0031] See also Figure 1 and Figure 2 As shown, the embodiment of the utility model provides a lower center rotating spindle structure for induction hardening, including a bottom plate 1, a lower center rotating component 2, a driving component 3 and a lifting component 4;

[0032] See also Figure 3 and Figure 4 As shown, the lower top rotating component 2 includes a lower top seat 201, a main shaft 202 and a connecting shaft 203; the lower top seat 201 is fixedly arranged on the bottom plate 1; the main shaft 202 is rotatably arranged in the lower top seat 201; the lower end of the connecting shaft 203 is connected to the main shaft 202, and the upper end of the connecting shaft 203 is provided with a central cone surface positioning fixture 204; specifically, the upper end of the central cone surface positioning fixture 204 is provided with a truncated cone-shaped positioning portion 205, the outer cone surface of the positioning portion 205 is inscribed with the inner cone surface of the workpiece, and the outer side surface of the positioning portion 205 is provided with a positioning convex ring 206. The connecting shaft 203 is a Morse No. 3 seat, and the central cone surface positioning fixture 204 is installed on the Morse No. 3 seat through a top screw; the upper end of the main shaft 202 is provided with a tapered hole adapted to the Morse No. 3 seat, and the lower end of the Morse No. 3 seat is inserted into the tapered hole. A sealing ring is provided between the main shaft 202 and the lower center seat 201 .

[0033] See also Figure 5As shown, the driving component 3 is used to drive the main shaft 202 to rotate; specifically, the lower end of the main shaft 202 extends from the lower top seat 201 and is connected to the driven gear 207; the driving component 3 includes a motor 31, which is connected to the bottom plate 1 through a bracket 32, and the output shaft of the motor 31 is connected to the driving gear 33 meshing with the driven gear 207. The driven gear 207 is connected to the main shaft 202 through a keyway, and is limited by a gear block 208 and a limit nut 209. The lower top rotating component 2 also includes a transition rod 210 and a rotary joint 211; the lower end of the main shaft 202 is provided with a first threaded hole, and the upper end of the transition rod 210 is connected to the first threaded hole through a top thread; the middle part of the transition rod 210 is provided with a rod thread that matches the limit nut 209; the lower end of the transition rod 210 is provided with a second threaded hole, and the rotary joint 211 is connected to the second threaded hole through a joint thread. A positioning screw hole 212 is provided on the side of the rotary joint 211, and the bracket 32 ​​is provided with an anti-rotation plate 34. The anti-rotation plate 34 is provided with a positioning groove 35 adapted to the positioning screw hole 212 to prevent the rotary joint in the lower top rotating component from rotating.

[0034] See also Figure 6 As shown, the lifting component 4 is used to place the workpiece and drive the workpiece to fall on the central cone positioning fixture 204. Specifically, the lifting component 4 includes a pull plate 42, a support plate 44 and two cylinders 41; the cylinder bodies of the two cylinders 41 are installed on the bottom plate 1 and are located on both sides of the lower top rotating component 2; the two ends of the pull plate 42 are respectively connected to the piston rods of the two cylinders 41; the support plate 44 is installed on the pull plate 42 through a support column 43, and the middle parts of the support plate 44 and the pull plate 42 are both provided with avoidance holes 45 that are compatible with the lower top rotating component 2. A mounting seat 11 that is compatible with the lower top seat 201 is provided in the middle of the bottom plate 1, and mounting grooves 12 that are compatible with the cylinder 41 are respectively provided on both sides of the mounting seat 11.

[0035] The working principle of the utility model is:

[0036] When the workpiece is placed on the pallet of the lifting component, as the cylinder drives the pallet to move, the workpiece falls on the lower center rotating component. After the upper center falls, the driving component drives the lower center rotating component to rotate, thereby driving the workpiece to rotate.

[0037] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0038] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A lower center rotating spindle structure for induction hardening, comprising a bottom plate (1), characterized in that: It also includes a lower top rotating component (2), a driving component (3) and a lifting component (4); The lower center rotating component (2) comprises a lower center seat (201), a main shaft (202) and a connecting shaft (203); the lower center seat (201) is fixedly arranged on the bottom plate (1); the main shaft (202) is rotatably arranged in the lower center seat (201); the lower end of the connecting shaft (203) is connected to the main shaft (202), and the upper end of the connecting shaft (203) is provided with a central conical surface positioning fixture (204); The driving component (3) is used to drive the main shaft (202) to rotate; The lifting component (4) is used to place the workpiece and drive the workpiece to fall onto the central cone surface positioning fixture (204).

2. The lower center rotating spindle structure for induction hardening according to claim 1, characterized in that: A truncated cone-shaped positioning part (205) is provided at the upper end of the central conical surface positioning fixture (204), the outer conical surface of the positioning part (205) is inscribed with the inner conical surface of the workpiece, and a positioning convex ring (206) is provided on the outer side surface of the positioning part (205).

3. The lower center rotating spindle structure for induction hardening according to claim 1, characterized in that: The connecting shaft (203) is a Morse No. 3 seat, and the central conical surface positioning fixture (204) is installed on the Morse No. 3 seat through a top screw; the upper end of the main shaft (202) is provided with a conical hole adapted to the Morse No. 3 seat, and the lower end of the Morse No. 3 seat is inserted into the conical hole.

4. The lower center rotating spindle structure for induction hardening according to claim 1, characterized in that: A sealing ring is provided between the main shaft (202) and the lower center seat (201).

5. The lower center rotating spindle structure for induction hardening according to claim 1, characterized in that: The lower end of the main shaft (202) extends out from the lower center seat (201) and is connected to a driven gear (207); the driving component (3) comprises a motor (31), the motor (31) is connected to the bottom plate (1) via a bracket (32), and the output shaft of the motor (31) is connected to a driving gear (33) meshing with the driven gear (207).

6. The lower center rotating spindle structure for induction hardening according to claim 5, characterized in that: The driven gear (207) is connected to the main shaft (202) via a keyway and is limited in position by a gear stopper (208) and a limiting nut (209).

7. The lower center rotating spindle structure for induction hardening according to claim 6, characterized in that: It also includes a transition rod (210) and a rotary joint (211); the lower end of the main shaft (202) is provided with a first threaded hole, and the upper end of the transition rod (210) is connected to the first threaded hole via a top thread; the middle part of the transition rod (210) is provided with a rod thread that is compatible with the limit nut (209); the lower end of the transition rod (210) is provided with a second threaded hole, and the rotary joint (211) is connected to the second threaded hole via a joint thread.

8. The lower center rotating spindle structure for induction hardening according to claim 7, characterized in that: A positioning screw hole (212) is provided on the side of the rotary joint (211), and an anti-rotation plate (34) is provided on the bracket (32). The anti-rotation plate (34) is provided with a positioning groove (35) matched with the positioning screw hole (212).

9. The lower center rotating spindle structure for induction hardening according to claim 1, characterized in that: The lifting component (4) comprises a pulling plate (42), a supporting plate (44) and two cylinders (41); the cylinder bodies of the two cylinders (41) are mounted on the bottom plate (1) and are located on both sides of the lower top rotating component (2); the two ends of the pulling plate (42) are respectively connected to the piston rods of the two cylinders (41); the supporting plate (44) is mounted on the pulling plate (42) through a supporting column (43), and the middle parts of the supporting plate (44) and the pulling plate (42) are both provided with avoidance holes (45) adapted to the lower top rotating component (2).

10. The lower center rotating spindle structure for induction hardening according to claim 9, characterized in that: A mounting seat (11) adapted to the lower top seat (201) is provided in the middle of the bottom plate (1), and mounting grooves (12) adapted to the cylinder (41) are respectively provided on both sides of the mounting seat (11).

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