Quenching and roundness correcting device for gear ring

Abstract

The utility model discloses a gear ring quenching roundness correction device, which comprises a base, a driving mechanism, a rotating shaft, a bearing seat, a pneumatic slip ring and a clamping jaw cylinder, the rotating shaft is vertically arranged, the pneumatic slip ring and the bearing seat are respectively sleeved outside the rotating shaft, the clamping jaw cylinder is fixedly connected with the top end of the rotating shaft, a plurality of fan-shaped supporting blocks are arranged on the clamping jaw cylinder, and the supporting blocks are arranged on the base. The clamping jaw air cylinder drives the tight supporting block to open outwards, a round hole is formed in the tight supporting block, a workpiece supporting disc is arranged below the tight supporting block, the workpiece supporting disc is in a circular ring shape, a long slotted hole is formed in the workpiece supporting disc, a spring, a pin and a supporting piece are arranged on the workpiece supporting disc, and the pin sequentially penetrates through the supporting piece, the spring, the long slotted hole and the round hole from bottom to top. According to the utility model, the functions of quenching and roundness correction of the gear ring are realized, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear ring rounding, in particular to a gear ring quenching rounding device. Background Art

[0002] In order to improve the strength, hardness, wear resistance, fatigue strength and toughness of the gear ring, it is necessary to use an electromagnetic induction coil for heating and quenching. Patent 201520286020.X discloses a gear ring quenching and heating device. The rotation heating function is achieved by fixing the gear ring on a three-jaw chuck, which can make the gear ring evenly heated. However, this technical solution cannot prevent the gear ring from deforming during the heating process, and further correction and rounding are required later. It is impossible to correct while heating, and the production efficiency is low. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a device for quenching and aligning a gear ring, which can align the gear ring during heating.

[0004] The purpose of the utility model is achieved through the following technical solutions: a device for quenching and rounding a gear ring, comprising a base, a driving mechanism, a rotating shaft, a bearing seat, a pneumatic slip ring, and a clamping cylinder, wherein the rotating shaft is vertically arranged, the pneumatic slip ring and the bearing seat are respectively sleeved outside the rotating shaft, the pneumatic slip ring is located above the bearing seat, the bearing seat is fixedly connected to the base, the driving mechanism drives the rotating shaft to rotate, the clamping cylinder is fixedly connected to the top end of the rotating shaft, a plurality of tightening blocks are arranged on the clamping cylinder, the tightening blocks are all fan-shaped, and the tightening blocks form a A complete disc shape, the small head end of the tightening block is fixedly connected to the output end of the clamping cylinder, the clamping cylinder drives the tightening block to expand outward, a circular hole is arranged on the tightening block, a workpiece supporting plate is arranged below the tightening block, the workpiece supporting plate is in a circular ring shape, the outer diameter of the workpiece supporting plate is larger than the radius of the tightening block, the inner diameter of the workpiece supporting plate is smaller than the radius of the tightening block, a long slot hole is opened on the workpiece supporting plate, a spring, a pin and a supporting plate are arranged on the workpiece supporting plate, and the pin passes through the supporting plate, the spring, the long slot hole and the circular hole in sequence from bottom to top.

[0005] Furthermore, the workpiece supporting plate is provided with a first protrusion, and the support block is provided with a limiting sliding groove matching the first protrusion.

[0006] Furthermore, the support block and the workpiece support plate are both hollowed out.

[0007] Furthermore, the number of the output ends of the clamping cylinder and the number of the tightening blocks are both three.

[0008] Furthermore, a second protrusion is provided on the lower surface of the tightening block, and the second protrusion is located at the inner circle of the workpiece supporting plate. The workpiece supporting plate limits the travel of the tightening block through the second protrusion.

[0009] The utility model has the following advantages: by arranging the pneumatic slip ring and the clamping cylinder on the rotating shaft, the normal use of the clamping cylinder during the rotation process is ensured, and the arrangement of the tightening block and the workpiece supporting plate can solve the deformation problem caused by the heat shrinkage of the gear ring, realize the function of quenching and rounding at the same time, and greatly improve the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0011] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model.

[0012] In the figure, 1, base; 2, driving mechanism; 3, rotating shaft; 4, bearing seat; 5, pneumatic slip ring; 6, clamping cylinder; 7, tightening block; 8, workpiece supporting plate; 9, round hole; 10, long slot hole; 11, spring; 12, supporting plate; 13, first protrusion; 14, second protrusion. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0015] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] like Figure 1 , Figure 2 As shown, a device for quenching and rounding a gear ring includes a base 1, a driving mechanism 2, a rotating shaft 3, a bearing seat 4, a pneumatic slip ring 5, and a clamping cylinder 6. The driving mechanism 2 includes a motor and a reducer. The rotating shaft 3 is vertically arranged. The pneumatic slip ring 5 and the bearing seat 4 are respectively mounted on the outside of the rotating shaft 3. The pneumatic slip ring 5 and the clamping cylinder 6 are both existing technologies and can be directly purchased on the market. The pneumatic slip ring 5 is located above the bearing seat 4. The static ring part of the pneumatic slip ring 5 is fixedly connected to the upper end of the bearing seat 4. The bearing seat 4 is fixedly connected to the base 1 by screws. The driving mechanism 2 drives the rotating shaft 3 to rotate. The bottom end of the clamping cylinder 6 can be fixedly connected to the rotating shaft 3 through a flange. The top of the clamping cylinder 6 is a three-claw cylinder with three output ends. Three tightening blocks 7 are installed on the clamping cylinder 6. The tightening blocks 7 are all fan-shaped, and the tightening blocks 7 are surrounded by a complete disc shape. The small head end of the tightening block 7 is fixedly connected to the output end of the clamping cylinder 6 by a screw. The clamping cylinder 6 drives the tightening block 7 to expand outward. A circular hole 9 is provided on each tightening block 7. A workpiece support plate 8 is arranged below the tightening block 7. The workpiece support plate 8 is annular. The tightening block 7 and the workpiece support plate 8 are both hollowed out. The outer diameter of the workpiece support plate 8 is larger than the radius of the tightening block 7, and the inner diameter of the workpiece support plate 8 is smaller than the radius of the tightening block 7, that is, the workpiece support plate 8 Compared with the tightening block 7, it protrudes more outward, and a long slot hole 10 is opened on the workpiece support plate 8. The long slot hole 10 is located directly above the circular hole 9. The long slot hole 10 is arranged parallel to the radial line of the workpiece support plate 8, that is, the long slot hole 10 is radial. A spring 11, a pin, and a supporting plate 12 are also installed on the workpiece support plate 8. The pin passes through the supporting plate 12, the spring 11, the long slot hole 10, and the circular hole 9 from bottom to top. The pin suspends the spring 11 and the workpiece support plate 8 below the tightening block 7 through the supporting plate 12. 8 is provided with a first protrusion 13 on the upper surface, and the long slot hole 10 passes through the first protrusion 13. The lower surface of the tightening block 7 is provided with a limiting slide groove matching the first protrusion 13. The clamping jaw cylinder 6 drives the tightening block 7 to be stretched outward horizontally and retracted. The lower surface of the tightening block 7 protrudes downward to form a second protrusion 14 and extends to the inner circle of the workpiece support plate 8. The tightening block 7 drives the second protrusion 14 to move outward, which will be restricted by the workpiece support plate 8. The workpiece support plate 8 prevents the second protrusion 14 and the tightening block 7 from continuing to move outward.

[0017] The working principle of the utility model is as follows: the gear ring is placed on the workpiece support disk, at which time the clamping block is located inside the gear ring, the clamping claw cylinder is started to make the clamping block move outward and support the inner ring surface of the gear ring, then the motor is started to drive the rotating shaft to rotate, the rotating shaft drives the clamping claw cylinder and the gear ring to rotate, the electromagnetic induction heating coil is started, and the gear ring is heated and rotated. Since the inner diameter of the gear ring tends to shrink after being heated, the support of the clamping block limits the deformation and shrinkage of the gear ring, thereby realizing the function of quenching and rounding the gear ring while rotating; the setting of the spring can continuously maintain the clamping force between the workpiece support disk and the clamping block to avoid arc ignition during induction heating; the workpiece support disk is a whole disc structure, and the clamping block and the workpiece support disk are both hollowed out, which can reduce the change of magnetic lines during electromagnetic heating and avoid overburning problems; the setting of the second protrusion can limit the stroke of the clamping block to avoid the clamping block from continuously moving outward to support the gear ring and scrapping it.

[0018] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for quenching and rounding a gear ring, characterized in that: The invention comprises a base (1), a driving mechanism (2), a rotating shaft (3), a bearing seat (4), a pneumatic slip ring (5), and a clamping cylinder (6), wherein the rotating shaft (3) is arranged vertically, the pneumatic slip ring (5) and the bearing seat (4) are respectively sleeved outside the rotating shaft (3), the pneumatic slip ring (5) is located above the bearing seat (4), the bearing seat (4) is fixedly connected to the base (1), the driving mechanism (2) drives the rotating shaft (3) to rotate, the clamping cylinder (6) is fixedly connected to the top end of the rotating shaft (3), and a plurality of tightening blocks (7) are arranged on the clamping cylinder (6), the tightening blocks (7) are all fan-shaped, the tightening blocks (7) are surrounded by a complete disc shape, and the small head end of the tightening block (7) is fixed. The output end of the clamping jaw cylinder (6) is fixedly connected to the output end of the clamping jaw cylinder (6), and the clamping jaw cylinder (6) drives the clamping block (7) to be opened outward. The clamping jaw cylinder (7) is provided with a circular hole (9). A workpiece support plate (8) is provided below the clamping jaw block (7). The workpiece support plate (8) is in the shape of a circular ring. The outer diameter of the workpiece support plate (8) is larger than the radius of the clamping jaw block (7), and the inner diameter of the workpiece support plate (8) is smaller than the radius of the clamping jaw block (7). A long slot hole (10) is provided on the workpiece support plate (8). A spring (11), a pin, and a support plate (12) are provided on the workpiece support plate (8). The pin passes through the support plate (12), the spring (11), the long slot hole (10), and the circular hole (9) in sequence from bottom to top.

2. The device for quenching and rounding a gear ring according to claim 1, characterized in that: The workpiece support plate (8) is provided with a protrusion (13), and the support block (7) is provided with a limiting sliding groove matching the protrusion (13).

3. The device for quenching and rounding a gear ring according to claim 1, characterized in that: The tightening block (7) and the workpiece support plate (8) are both hollowed out.

4. The device for quenching and rounding a gear ring according to claim 1, characterized in that: The number of the output ends of the clamping claw cylinder (6) and the number of the tightening blocks (7) are both three.

5. The device for quenching and rounding a gear ring according to claim 1, characterized in that: The lower surface of the tightening block (7) is provided with a second protrusion (14), the second protrusion (14) is located in the inner circle of the workpiece support plate (8), and the workpiece support plate (8) limits the travel of the tightening block (7) through the second protrusion (14).

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