Gear honing center follow-up device

Abstract

The invention relates to a gear honing center follow-up device, and belongs to the technical field of gear honing machines. The scheme is mainly used for the powerful gear honing machine. According to the device, a workpiece shaft is driven by a motor to perform axial oscillation motion, meanwhile, the tip end is pneumatically controlled, and follow-up motion of the tip is achieved by utilizing the compressible characteristic of gas. According to the invention, the telescopic movement of the tip, the axial reciprocating oscillation movement along with the workpiece shaft and the high-speed rotation movement are realized, and the gear honing machining precision and efficiency are improved. By optimizing the structural design, the reliability and durability of the device are enhanced, and meanwhile the machining efficiency and the workpiece quality are improved. The device is suitable for workpieces of different types and sizes, has universality and flexibility, is simple and convenient to operate, and reduces training requirements of operators.

Description

Technical Field

[0001] The invention belongs to the technical field of gear honing machines and relates to a gear honing center follower device. Background Art

[0002] In the processing of high-power gear honing machines, the honing tip is a key component that needs to achieve multiple movements to adapt to the processing requirements of the workpiece. Existing honing tip devices usually use a single drive method, such as pure electric or pure pneumatic, to achieve the tip's telescopic, axial reciprocating oscillation, and high-speed rotational movement. However, these traditional devices have some problems.

[0003] First, the traditional electric driven center has the problem of slow response speed and low control accuracy in axial reciprocating oscillation motion. This leads to unstable contact pressure between the center and the workpiece during machining, affecting machining quality and efficiency. Secondly, although the pure pneumatic driven center has a fast response speed, its accuracy and stability are relatively low due to the compressibility of gas, especially in high-speed rotation, it is easy to produce vibration and deviation.

[0004] In addition, the existing honing tip devices are often complex in structure design, which makes maintenance difficult and prone to wear and failure in long-term use. These problems limit the performance and reliability of existing honing tip devices in practical applications. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a honing center follower device, which realizes fast response and high-precision control of the center by combining electric and pneumatic drive. At the same time, through the optimized structural design, the stability and reliability of the device are improved, thereby significantly improving the efficiency of honing and the quality of workpieces.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A honing center follower device comprises an axial oscillating motion driving end driven by a motor, used to drive a workpiece shaft to perform axial reciprocating oscillating motion; and a pneumatically controlled center end, which realizes center follower motion by utilizing the compressible property of gas;

[0008] Among them, the top end is used to realize the telescopic movement of the top, the axial reciprocating oscillation movement of the top following the workpiece axis, and the high-speed rotation movement of the top.

[0009] Optionally, the top end includes a fixed plate, which is fixedly connected to the telescopic sleeve, and the telescopic movement of the top is realized through the telescopic sleeve; a spring is provided between the connecting rod and the fixed plate, for providing elastic force for the telescopic movement of the top; the fixed plate is connected to the air cavity, for receiving compressed air to drive the movement of the telescopic sleeve.

[0010] Optionally, the fixing rod is connected to the top bearing seat through the top outer ring connecting cover, and the top bearing seat drives the workpiece through the workpiece shaft to drive the top to achieve axial reciprocating oscillating motion.

[0011] Optionally, a ball linear guide cylinder is arranged between the top bearing seat and the telescopic sleeve to guide the reciprocating motion of the top.

[0012] Optionally, a hydraulic expansion chuck is arranged outside the telescopic sleeve.

[0013] Optionally, the telescopic movement of the top tip is achieved through pneumatic control, and the telescopic sleeve is divided into a first air cavity and a third air cavity; a second air cavity is formed between the top tip outer ring connecting cover and the fixed disk; when extended, compressed air enters the first air cavity, and enters the second air cavity through the drilled hole on the fixed disk, pushing the top tip outer ring connecting cover, pulling the connecting rod and driving the telescopic sleeve to move through the spring and the fixed disk; when retracted, compressed air enters the third air cavity, driving the compression sleeve to move in the opposite direction.

[0014] Optionally, after the telescopic sleeve is extended into place, the hydraulic expansion chuck clamps the telescopic sleeve to prevent the telescopic sleeve from moving as the top follows the axial reciprocating oscillation of the workpiece axis; after the telescopic sleeve is locked, the first air cavity and the second air cavity are always in a ventilated and pressure-maintaining state to ensure the tightening pressure between the top and the workpiece, and when the top follows the workpiece axis and moves in the first direction along the axial direction of the workpiece axis, the top bearing seat and the top outer ring connecting cover squeeze the first air cavity and the second air cavity, and the top bearing seat and the top outer ring moving to the right is achieved through the compressible property of gas; when the workpiece axis moves to the second direction, since the first air cavity and the second air cavity are always in a pressure-maintaining state and the air cavity pressure is high, the top bearing seat and the top outer ring connecting cover can be pushed to the left, thereby ensuring that the top and the workpiece are always in contact; the first direction is opposite to the second direction.

[0015] Optionally, the center follows the axial reciprocating oscillating motion of the workpiece axis, and the center bearing seat is guided by a ball linear guide sleeve to achieve smooth axial movement.

[0016] Optionally, when the top rotates at high speed, the bearing seat remains fixed and does not rotate with the top. This movement state is achieved through the friction between the fixed disk and the spring.

[0017] Optionally, the center and the inner ring of the bearing follow the workpiece axis to achieve high-speed rotation.

[0018] The beneficial effects of the present invention are:

[0019] Improve processing accuracy and stability: By combining electric and pneumatic drives, the present invention can achieve top-notch rapid response and high-precision control, thereby improving the accuracy and stability of gear honing.

[0020] Enhance the reliability and durability of the device: The optimized structural design reduces the possibility of wear and failure, making the device more reliable and durable, and reducing maintenance costs and downtime.

[0021] Improve processing efficiency: The present invention reduces the adjustment and preparation time during the processing through efficient top follow-up movement, thereby improving the overall processing efficiency.

[0022] Improve workpiece quality: Since the center can always hold the workpiece tightly and the clamping force changes little, the position of the workpiece can be ensured to be stable during processing, thereby improving the quality of the workpiece.

[0023] Strong adaptability: The design of the present invention enables it to adapt to workpieces of different types and sizes, thereby improving the versatility and flexibility of the device.

[0024] Easy operation: The combination of motor and pneumatic control makes operation easier and reduces the need for operator training.

[0025] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0027] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0028] Figure 2 This is another working condition schematic diagram of this scheme.

[0029] Figure numerals: ball linear guide sleeve 1, top outer ring connecting cover 2, spring 3, connecting rod 4, hydraulic expansion chuck 5, telescopic sleeve 6, third air cavity 7, top bearing seat 8, second air cavity 9, fixed plate 10, first air cavity 11, first air path 12, second air path 13. DETAILED DESCRIPTION

[0030] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0031] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0032] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] See also Figure 1-2 In the attached drawings, the connection relationship and function of the ball linear guide sleeve 1, the top outer ring connecting cover 2, the spring 3, the connecting rod 4, the hydraulic expansion chuck 5, the telescopic sleeve 6, the third air cavity 7, the top bearing seat 8, the second air cavity 9, the fixed plate 10, the first air cavity 11, the first air path 12 and the second air path 13 are as follows:

[0034] Ball linear guide sleeve 1: It is set between the top bearing seat 8 and the telescopic sleeve 6 to ensure the smoothness of the back and forth reciprocating movement of the top.

[0035] Top outer ring connecting cover 2: connected to the top bearing seat 8, and prevents the outer ring of the bearing from rotating through the friction between the spring 3 and the fixed plate 10.

[0036] Spring 3: connects the outer ring of the top to the connecting cover 2 and the fixed plate 10, providing the necessary elastic force to maintain the stability of the top.

[0037] Connecting rod 4: connects the top outer ring connecting cover 2 and the telescopic sleeve 6 to transmit power and pressure.

[0038] Liquid expansion chuck 5: used to clamp the telescopic sleeve 6 when the top is extended to prevent the telescopic sleeve 6 from axial movement during processing.

[0039] Telescopic sleeve 6: realizes the top telescopic movement, and extends and retracts through pneumatic control.

[0040] The third air chamber 7 is connected to the telescopic sleeve 6 and is used to control the retraction action of the top.

[0041] The top bearing seat 8 is connected to the top outer ring connecting cover 2, and drives the workpiece through the workpiece shaft to drive the top to realize axial reciprocating oscillating motion.

[0042] The second air cavity 9 maintains pressure together with the first air cavity 11 and the second air cavity 9, and utilizes the compressible property of the gas to provide pressure to realize the axial reciprocating oscillating motion of the tip.

[0043] Fixed plate 10: connected to spring 3, prevents the outer ring of the bearing from rotating through friction, and is fixedly connected to telescopic sleeve 6 to realize the telescopic movement of the telescopic sleeve.

[0044] The first air cavity 11 is connected to the first air path 12 and is used to control the extension of the tip.

[0045] The first air path 12 is used to provide compressed air to the first air cavity 11 and the second air cavity 9 .

[0046] The second air path 13 is used to provide compressed air to the third air cavity 7 to control the retraction action of the tip.

[0047] The present invention relates to a honing center follower device suitable for a high-power honing machine, which aims to solve the problem that the center needs to follow the workpiece to perform axial reciprocating oscillation during the honing process. Figure 1 As shown, in order to ensure that the top tip always presses tightly against the workpiece during reciprocating motion and the pressing force changes minimally, the present invention adopts an axial oscillating motion drive end driven by a motor to control the movement of the workpiece axis, and at the same time adopts pneumatic control at the top tip, utilizing the compressible characteristics of gas to achieve the follow-up motion of the top tip.

[0048] In the present invention, the center needs to realize three basic motions: telescopic motion, axial reciprocating oscillating motion following the workpiece axis, and high-speed rotation motion.

[0049] Realization of the telescopic movement of the top: This movement includes two actions: telescopic movement of the top and locking after it is in place. The telescopic movement is achieved through pneumatic control, such as Figure 2 As shown. Figure 1In the process, the top tip extends out and presses against the workpiece. At this time, the compressed air enters the first air cavity 11 from the first air path 12, and flows into the second air cavity 9 through the holes on the fixed plate 10, pushing the top tip outer ring connecting cover 2, and then pushing the telescopic sleeve 6 out through the connecting rod 4, spring 3 and fixed plate 10. When the top tip presses against the workpiece, the hydraulic chuck 5 clamps the telescopic sleeve to prevent the sleeve from axial movement during processing. Figure 2 In the top retracted state, compressed air directly enters the third air cavity 7 from the second air path 13 to drive the telescopic sleeve 6 to retract.

[0050] Implementation of the axial reciprocating oscillating motion of the top: This motion is achieved by maintaining pressure in the first air cavity 11 and the second air cavity 9, using the compressibility of the gas. After the telescopic sleeve 6 is extended and clamped by the spring chuck, the first air path 12 is kept ventilated to ensure that the pressure in the first air cavity 11 and the second air cavity 9 is equal to the input air pressure. During operation, the workpiece moves axially toward the top end, pushing the top and compressing the second air cavity 9 to achieve the retraction of the top. When the workpiece axis is away from the top, the compressed air in the first air cavity 11 and the second air cavity 9 quickly pushes the top forward to ensure that the clamping force of the top on the workpiece is equal to the pressure transmitted by the second air cavity 9. The ball linear guide sleeve 1 is arranged between the top bearing seat 8 and the telescopic sleeve 6 to ensure the smoothness of the back and forth reciprocating movement of the top.

[0051] Realization of high-speed rotation of the top: The top bearing seat 8 is connected to the top outer ring connection cover 2, and forms a whole with the connecting rod 4 and the spring 3. During rotation, the friction between the spring 3 and the fixed plate 10 prevents the outer ring of the bearing from rotating. The inner ring of the bearing drives the workpiece through the workpiece shaft, thereby driving the top to rotate.

[0052] Through the above structural design, the present invention can achieve top-notch precise control, improve the accuracy and efficiency of gear honing, and ensure the quality of the workpiece.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A honing center follower device, characterized in that: It includes an axial oscillating motion driving end driven by a motor, which is used to drive the workpiece shaft to perform axial reciprocating oscillating motion; And a pneumatically controlled top end, which uses the compressible properties of gas to achieve top follow-up movement; Among them, the top end is used to realize the telescopic movement of the top, the axial reciprocating oscillation movement of the top following the workpiece axis, and the high-speed rotation movement of the top.

2. The honing center follower device according to claim 1, characterized in that: The top end includes a fixed plate, which is fixedly connected to the telescopic sleeve, and the telescopic movement of the top is realized through the telescopic sleeve; a spring is provided between the connecting rod and the fixed plate to provide elastic force for the telescopic movement of the top; the fixed plate is connected to the air cavity to receive compressed air to drive the movement of the telescopic sleeve.

3. The honing center follower device according to claim 2, characterized in that: The connecting rod is connected to the top bearing seat through the top outer ring connecting cover, and the top bearing seat drives the workpiece through the workpiece shaft to drive the top to rotate.

4. The honing center follower device according to claim 3, characterized in that: A ball linear guide cylinder is arranged between the top bearing seat and the telescopic sleeve to guide the reciprocating motion of the top.

5. The honing center follower device according to claim 2, characterized in that: A hydraulic expansion chuck is arranged outside the telescopic sleeve.

6. The honing center follower device according to claim 3, characterized in that: The telescopic movement of the top is achieved through pneumatic control, and the telescopic sleeve is divided into a first air chamber and a third air chamber; a second air chamber is formed between the top outer ring connecting cover and the fixed plate; when extended, compressed air enters the first air chamber, and enters the second air chamber through the drilled hole in the fixed plate, pushing the top outer ring connecting cover to pull the connecting rod and drive the telescopic sleeve to move through the spring and the fixed plate; when retracted, compressed air enters the third air chamber, driving the compression sleeve to move in the opposite direction.

7. The honing center follower device according to claim 6, characterized in that: After the telescopic sleeve is extended into place, the hydraulic expansion chuck clamps the telescopic sleeve to prevent the telescopic sleeve from moving as the top follows the axial reciprocating oscillation of the workpiece axis; after the telescopic sleeve is locked, the first air cavity and the second air cavity are always in a ventilated and pressure-maintaining state to ensure the tightening pressure between the top and the workpiece, and when the top follows the workpiece axis and moves in the first direction along the axial direction of the workpiece axis, the top bearing seat and the top outer ring connecting cover squeeze the first air cavity and the second air cavity, and the top bearing seat and the top outer ring move to the right through the compressible property of gas; when the workpiece axis moves to the second direction, since the first air cavity and the second air cavity are always in a pressure-maintaining state and the air cavity pressure is high, the top bearing seat and the top outer ring connecting cover can be pushed to the left, thereby ensuring that the top and the workpiece are always in contact; the first direction is opposite to the second direction.

8. The honing center follower device according to claim 7, characterized in that: The center follows the axial reciprocating oscillating motion of the workpiece axis, and the center bearing seat is guided by the ball linear guide sleeve to achieve smooth axial movement.

9. The honing center follower device according to claim 7, characterized in that: When the center rotates at high speed, the bearing seat remains fixed and does not rotate with the center. This movement state is achieved through the friction between the fixed disk and the spring.

10. The honing center follower device according to claim 7, characterized in that: The center and the inner ring of the bearing follow the workpiece axis to achieve high-speed rotation.

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