Flexible inner and outer gear double-tooth-surface grinding device and machining method

Abstract

The invention relates to the technical field of gear surface grinding machining of aviation air door shaft type and limiting gear shaft type parts, in particular to a flexible inner and outer gear double-tooth-surface grinding device and machining method.The device comprises a manual reversing mechanism, a flexible double-face stress mechanism and a motor driving reciprocating mechanism; the device is high in machining efficiency, good in precision control, stable and reliable in quality and capable of meeting the high-precision machining requirement that the joint fork lugs with the rotation structures are produced in batches and cannot deform.

Description

Technical Field

[0001] The invention relates to the technical field of tooth surface grinding processing of aviation damper shafts and limit gear shaft parts, and in particular to a flexible internal and external gear double tooth surface grinding device and a processing method. Background Art

[0002] There are many similar butterfly-type damper switches in the structural parts of the aviation air source subsystem. The gear parts of the emergency damper shaft and the limit gear shaft need to rotate in coordination. Affected by the assembly relationship, the outer gear surface of the damper shaft and the inner gear surface of the limit gear shaft have high surface roughness accuracy requirements. Therefore, the tooth surface must be ground after the gear shaping process.

[0003] According to the traditional processing method, manual grinding is adopted. Manual grinding requires holding the grinding sleeve or product parts by hand, repeatedly rotating the force in the left and right directions, and reciprocating relative motion back and forth to grind the tooth surface. However, manual processing is labor-intensive, the consistency of product size and precision control is poor, and the processing efficiency is low, which cannot meet the needs of daily batch parts processing.

[0004] There are also customized non-standard gear grinding machines on the market, for example: Mitsubishi Heavy Industries, Ltd. of Taiwan, China, patent number TW201217089A gear grinding method. This processing solution is for larger gears, grinding one tooth surface at a time. Not only is the machine cost high, but the processing efficiency is also low.

[0005] German patent DE102021130731A1 discloses a gear grinding method and a gear grinding machine. This processing scheme also grinds larger gears one tooth surface at a time. The machine tool cost is high and the processing efficiency is low. Summary of the invention

[0006] The purpose of the present invention is to provide a flexible internal and external gear double tooth surface grinding device and processing method with high processing efficiency, good precision control, stable and reliable quality, and capable of meeting the needs of mass production processing.

[0007] Technical solution:

[0008] A flexible inner and outer gear double tooth surface grinding device, comprising a manual reversing mechanism, a flexible double-sided force bearing mechanism and a motor-driven reciprocating mechanism;

[0009] The motor-driven reciprocating mechanism comprises a grinding head, a reciprocating mechanism guide rod, a reciprocating mechanism guide sleeve, a reciprocating mechanism connecting rod, a reciprocating stroke adjustment T-key, a reciprocating stroke adjustment T-slot, a fixed plate, an adjustable speed motor, a signal trigger, and a relay; one end of the grinding head is threadedly connected to one end of the reciprocating mechanism guide rod, the reciprocating mechanism guide rod is slidably matched with the guide sleeve shaft hole arranged on the side of the fixed plate, and the other end of the reciprocating mechanism guide rod is connected to one end of the reciprocating mechanism connecting rod; the other end of the reciprocating mechanism connecting rod is connected to the reciprocating stroke adjustment T-key, the reciprocating stroke adjustment T-key is fixed on the reciprocating stroke adjustment T-slot, and the reciprocating stroke adjustment T-slot is connected to the output shaft of the adjustable speed motor arranged on one side of the fixed plate; the fixed plate is fixed on the base; the signal trigger and the adjustable speed motor are both electrically connected to the relay;

[0010] The flexible double-sided force-bearing mechanism includes a support block fixing screw, a magazine clip rod, a large bearing, a support plate, a gear, a support plate fixing nut, a rack, a spring, and a support block; the support block fixing screw is arranged in the support block, and the support block fixing screw is slidably arranged in the T-slot of the base, which can drive the support block to move along the T-slot direction of the base, and the support plate is fixed to the support block; the large bearing is arranged in the support plate, and one end of the magazine clip rod passes through the large bearing and cooperates with the gear; the other end of the magazine clip rod is coaxially arranged with the grinding head, and the part to be processed is installed at the other end of the magazine clip rod; the rack is meshed with the gear, and one end of the spring is connected to the rack;

[0011] The manual reversing mechanism includes a shift rod fixing screw, a shift rod connecting rod, a shift rod, a shift rod positioning pin, and a small spring. The other end of the spring is connected to the shift rod connecting rod. The shift rod connecting rod is fixed to the support plate by the shift rod fixing screw, and the shift rod connecting rod can rotate around the shift rod fixing screw. The small spring is arranged in the shift rod connecting rod. The shift rod is inserted into the shift rod connecting rod to compress the small spring. One end of the shift rod positioning pin passes through the U-shaped groove on the side of the shift rod connecting rod and is connected to the shift rod, and the other end is arranged in the guide groove on the support plate and slides with the guide groove.

[0012] Furthermore, the motor-driven reciprocating mechanism also includes a reciprocating mechanism connecting rod fixing screw and a reciprocating mechanism connecting rod bearing. The other end of the reciprocating mechanism guide rod is connected to one end of the reciprocating mechanism connecting rod through the reciprocating mechanism connecting rod fixing screw and the reciprocating mechanism connecting rod bearing; the other end of the reciprocating mechanism connecting rod is connected to the reciprocating stroke adjustment T-key through the reciprocating mechanism connecting rod fixing screw and the reciprocating mechanism connecting rod bearing.

[0013] Furthermore, the motor-driven reciprocating mechanism also includes a T-key fixing screw and a T-slot fixing screw. The reciprocating stroke adjustment T-key is fixed to the reciprocating stroke adjustment T-slot through the T-key fixing screw, and the reciprocating stroke adjustment T-slot is connected to the adjustable speed motor output shaft arranged on one side of the fixed plate through the T-slot fixing screw.

[0014] Furthermore, the motor-driven reciprocating mechanism also includes a protective shell, which is fixed on the base. The reciprocating mechanism guide rod, reciprocating mechanism guide sleeve, reciprocating mechanism connecting rod, reciprocating stroke adjustment T-key, reciprocating stroke adjustment T-slot, fixed plate, and adjustable speed motor are all arranged in the protective shell, and the signal trigger and relay are arranged on the protective shell.

[0015] Furthermore, the flexible double-sided force-bearing mechanism includes a magazine clip rod fixing screw, one end of the magazine clip rod passes through a large bearing and cooperates with a gear, and is fixed by the magazine clip rod fixing screw.

[0016] Furthermore, the flexible double-sided force-bearing mechanism also includes a handwheel nut, and the support block fixing screw passes through the support block and is connected to the handwheel nut.

[0017] Furthermore, the flexible double-sided force-bearing mechanism also includes a support plate fixing screw, a T-slot is arranged on the side of the support block, one end of the support plate fixing screw slides with the T-slot on the side of the support block, and the other end passes through the support plate and is connected with the support plate fixing nut to fix the support plate to the support block.

[0018] Furthermore, the guide groove on the support plate is a "mountain"-shaped guide groove, including a middle guide sleeve and left and right guide grooves, and the left and right guide grooves are connected to the middle guide groove.

[0019] Furthermore, it also includes a limiting fixing nut and a limiting fixing screw. The limiting fixing nut is slidably set in the T-slot on the base, and the limiting fixing screw is set on the limiting fixing nut to limit the moving position of the support block.

[0020] A method for grinding double tooth surfaces of flexible internal and external gears is carried out using the device, and is characterized by comprising the following steps:

[0021] S11, install the part to be ground on the clip rod and fix it, and rotate the adjustable reciprocating mechanism; move the support block along the T-shape of the base so that the grinding head completely covers the part to be ground; finally, fix the limit fixing nut close to the support block through the limit fixing screw to ensure that the limit can be quickly clamped when the support block is moved left and right when the part is replaced;

[0022] S12, rough grinding: connect the grinding head to the guide rod of the reciprocating mechanism through threads, adjust the reciprocating stroke adjustment T-key by manually rotating the reciprocating stroke adjustment T-slot, so that the reciprocating stroke of the grinding head is greater than the length of the processed part, and fix the reciprocating stroke adjustment T-key to the reciprocating stroke adjustment T-slot through the fixing screw; install the part to be processed on the magazine clamp rod, and place the grinding processing part of the part to be processed completely within the reciprocating motion of the grinding head by moving the support block, and then fix the support block to the base through the support block fixing screw and the handwheel nut; move the limit fixing nut, and limit and fix it close to the support block through the limit fixing screw; choose ductile iron material to make the grinding head material. When grinding, use W20 white corundum grinding paste to apply on the part to be ground and the grinding head, and then apply on the part to be ground and the grinding head. Apply a proper amount of lubricating oil; set the relay interval time to 3 minutes, and set the adjustable speed motor speed to S=500RPM; press the lever to push the lever positioning pin from the middle guide groove to the left guide groove, drive the lever connecting rod to rotate counterclockwise around the lever fixing screw, and make the spring bend and deform to generate elastic force, which is transmitted to the clip rod through the meshing of the rack and the gear, so that the processed part has a tendency to rotate. Due to the clearance between the processed part and the grinding head, at this time, the tooth surface on one side of the processed part is tightly fitted with the grinding head, and there is a gap between the tooth surface on the other side and the grinding head. The tooth surface that is tightly fitted with the grinding head is the grinding surface. Start the signal trigger, the motor rotates, and drives the reciprocating stroke adjustment T-slot and the reciprocating stroke adjustment T-key to rotate at the same time, driving the grinding head to reciprocate relative to the processed part to grind the grinding surface;

[0023] After the grinding of the tooth surface on one side of the workpiece is completed, the lever is pressed to push the lever positioning pin from the left guide groove to the right guide groove, driving the lever connecting rod to rotate clockwise around the lever fixing screw, causing the spring to bend and deform, generating elastic force, which is transmitted to the clip rod through the meshing of the rack and the gear, so that the workpiece has a tendency to rotate, and the tooth surface on the other side is tightly fitted with the grinding head, which is the grinding surface. The signal trigger is started, and the motor rotates, driving the reciprocating stroke adjustment T-slot and the reciprocating stroke adjustment T-key to rotate at the same time, driving the grinding head to reciprocate relative to the workpiece, and grinding the grinding surface;

[0024] S13, fine grinding: clean the parts and the grinding head, apply W5 white corundum grinding paste on the parts to be ground and the grinding head, and then apply an appropriate amount of lubricating oil; according to the method of step S12, process the tooth surfaces on both sides of the processed parts, set the relay interval time to 3 minutes, and set the adjustable speed motor speed to S = 800RPM.

[0025] Beneficial effects: A flexible internal and external gear double tooth surface grinding device and processing method are proposed, which has high processing efficiency, good precision control, stable and reliable quality, and can meet the high-precision processing requirements of mass production of joint fork ears with rotating structures that cannot be deformed. Specifically, it has the following advantages:

[0026] (1) The present invention skillfully combines a flexible double-sided force-bearing mechanism, a manual reversing mechanism, a motor-driven reciprocating mechanism, a grinding tool, and parts through a base to form a flexible internal and external gear double-tooth surface grinding device, which has the advantages of small size, low cost, simple processing, and strong practicality.

[0027] (2) The device of the present invention is designed with a flexible double-sided force-bearing mechanism, the main components of which are springs and gear racks. By utilizing the bending and self-reset tendency of a spring, a flexible grinding force is generated, so that the gear surface of the part and the grinding tool are in continuous flexible contact during the machining process.

[0028] (3) The device of the present invention realizes efficient processing of products. According to the basic parameters of the teeth to be ground, a multi-tooth grinding tool is designed and processed to achieve high processing efficiency.

[0029] (4) The device of the present invention is designed with a motor-driven reciprocating mechanism to form an adjustable reciprocating motion device. By adjusting the reciprocating mechanism connecting rod bearing 23 and the reciprocating mechanism connecting rod 24 and the relative eccentric distance, the reciprocating motion formation can be changed to meet the grinding processing of gears of different lengths.

[0030] (5) The device of the present invention is designed with an adjustable speed motor 31 and a relay 33. By setting the reciprocating grinding speed and grinding time, the grinding process parameters can be adjusted and controlled to achieve product processing consistency.

[0031] (6) The device of the present invention can be designed to replace different grinding heads to achieve grinding processing of different gears (internal gears, external gears).

[0032] (7) The flexible grinding force of the device of the present invention is adjustable, and the force can be changed by adjusting and replacing the spring wire diameter, thereby meeting the requirements of efficient grinding processing of products of different sizes and surface roughness.

[0033] (8) The device of the present invention is designed with a support plate 5, and a lever guide groove is designed on the support plate. The functions and effects of the guide groove are as follows: ① The fixed lever makes the spring bend to generate elastic force, which is transmitted to the grinding workpiece through the gear rack mechanism. ② The guide groove can change the size of the flexible grinding force by designing different arc lengths and angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. It is obvious that the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 This is an exploded view of the structure of the flexible inner and outer gear double tooth surface grinding device of the present invention;

[0036] Figure 2 This is a front view of the structure of the flexible inner and outer gear double tooth surface grinding device of the present invention;

[0037] Figure 3 It is a structural side view of the flexible internal and external gear double tooth surface grinding device of the present invention;

[0038] Figure 4 It is a top view of the structure of the flexible inner and outer gear double tooth surface grinding device of the present invention;

[0039] Figure 5 It is a three-dimensional structural diagram of the flexible inner and outer gear double tooth surface grinding device of the present invention;

[0040] Figure 6 It is a schematic diagram of the structure and appearance of the flexible internal and external gear double tooth surface grinding device of the present invention;

[0041] Figure 7 It is a three-dimensional exploded view of the structure of the flexible inner and outer gear double tooth surface grinding device of the present invention;

[0042] Figure 8 It is a schematic diagram of the cooperation between the grinding head and the parts;

[0043] Among them, 1. Base, 2. Support block fixing screws, 3. Clip rod, 4. Large bearing, 5. Support plate, 6. Gear, 7. Clip rod fixing screws, 8. Support plate fixing nut, 9. Rack, 10. Spring, 11. Lever fixing screws, 12. Lever connecting rod, 13. Lever, 14. Lever positioning pin, 15. Small spring, 16. Support plate fixing screws, 17. Support block, 18. Handwheel nut, 19. Grinding head, 20. Reciprocating mechanism Guide rod, 21. Reciprocating mechanism guide sleeve, 22. Reciprocating mechanism connecting rod fixing screw, 23. Reciprocating mechanism connecting rod bearing, 24. Reciprocating mechanism connecting rod, 25. Reciprocating stroke adjustment T-key, 26. Reciprocating stroke adjustment T-slot, 27. T-key fixing screw, 28. T-slot fixing screw, 29. Fixing plate, 30. Adjustable speed motor, 31. Signal trigger, 32. Relay, 33. Protective shell, 34. Limit fixing nut 35. Limit fixing screw. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0045] The features and illustrative embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is by no means limited to any specific settings and methods proposed below, but covers any improvements, replacements and modifications of structures, methods, devices without departing from the spirit of the present invention. In the accompanying drawings and the following description, known structures and technologies are not shown to avoid unnecessary ambiguity in the present invention.

[0046] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other, and the embodiments can refer to and quote each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0047] An embodiment of the present invention is:

[0048] Provided is a flexible inner and outer gear double tooth surface grinding device, comprising a manual reversing mechanism, a flexible double-sided force bearing mechanism and a motor-driven reciprocating mechanism;

[0049] Among them, the motor-driven reciprocating mechanism includes a grinding head 19, a reciprocating mechanism guide rod 20, a reciprocating mechanism guide sleeve 21, a reciprocating mechanism connecting rod 24, a reciprocating stroke adjustment T-key 25, a reciprocating stroke adjustment T-slot 26, a fixed plate 29, an adjustable speed motor 30, a signal trigger 31, and a relay 32; one end of the grinding head 19 is threadedly connected to one end of the reciprocating mechanism guide rod 20, the reciprocating mechanism guide rod 20 is slidably matched with the axial hole of the guide sleeve 21 arranged on the side of the fixed plate 29, and the other end of the reciprocating mechanism guide rod 20 is connected to one end of the reciprocating mechanism connecting rod 24; the other end of the reciprocating mechanism connecting rod 24 is connected to the reciprocating stroke adjustment T-key 25, the reciprocating stroke adjustment T-key 25 is fixed on the reciprocating stroke adjustment T-slot 26, and the reciprocating stroke adjustment T-slot 26 is connected to the output shaft of the adjustable speed motor 30 arranged on one side of the fixed plate 29; the fixed plate 29 is fixed on the base 1; the signal trigger 31 and the adjustable speed motor 30 are both electrically connected to the relay 32;

[0050] The flexible double-sided force-bearing mechanism includes a support block fixing screw 2, a clip rod 3, a large bearing 4, a support plate 5, a gear 6, a support plate fixing nut 8, a rack 9, a spring 10, and a support block 17; the support block fixing screw 2 is arranged in the support block 17, and the support block fixing screw 2 is slidably arranged in the T-slot of the base 1, which can drive the support block 17 to move along the T-slot direction of the base 1, and the support plate 5 is fixed to the support block 17; the large bearing 4 is arranged in the support plate 5, and one end of the clip rod 3 passes through the large bearing 4 and cooperates with the gear 6; the other end of the clip rod 3 is coaxially arranged with the grinding head 19, and the part to be processed is installed at the other end of the clip rod 3; the rack 9 is meshed with the gear 6, and one end of the spring 10 is connected to the rack 9;

[0051] The manual reversing mechanism includes a shift rod fixing screw 11, a shift rod connecting rod 12, a shift rod 13, a shift rod positioning pin 14, and a small spring 15. The other end of the spring 10 is connected to the shift rod connecting rod 12. The shift rod connecting rod 12 is fixed to the support plate 5 by the shift rod fixing screw 11, and the shift rod connecting rod 12 can rotate around the shift rod fixing screw 11. The small spring 15 is arranged in the shift rod connecting rod 12. The shift rod 13 is inserted into the shift rod connecting rod 12 to press the small spring 15. One end of the shift rod positioning pin 14 passes through the U-shaped groove on the side of the shift rod connecting rod 12 and is connected to the shift rod 13. The other end is arranged in the guide groove on the support plate 5 and slides with the guide groove.

[0052] In this embodiment, the motor-driven reciprocating mechanism also includes a reciprocating mechanism connecting rod fixing screw 22 and a reciprocating mechanism connecting rod bearing 23. The other end of the reciprocating mechanism guide rod 20 is connected to one end of the reciprocating mechanism connecting rod 24 through the reciprocating mechanism connecting rod fixing screw 22 and the reciprocating mechanism connecting rod bearing 23; the other end of the reciprocating mechanism connecting rod 24 is connected to the reciprocating stroke adjustment T-key 25 through the reciprocating mechanism connecting rod fixing screw 22 and the reciprocating mechanism connecting rod bearing 23.

[0053] In this embodiment, the motor-driven reciprocating mechanism also includes a T-key fixing screw 27 and a T-slot fixing screw 28. The reciprocating stroke adjustment T-key 25 is fixed to the reciprocating stroke adjustment T-slot 26 through the T-key fixing screw 27. The reciprocating stroke adjustment T-slot 26 is connected to the output shaft of the adjustable speed motor 30 arranged on one side of the fixed plate 29 through the T-slot fixing screw 28.

[0054] In this embodiment, the motor-driven reciprocating mechanism also includes a protective shell 33, which is fixed on the base 1. The reciprocating mechanism guide rod 20, the reciprocating mechanism guide sleeve 21, the reciprocating mechanism connecting rod 24, the reciprocating stroke adjustment T-key 25, the reciprocating stroke adjustment T-slot 26, the fixing plate 29, and the adjustable speed motor 30 are all arranged in the protective shell 33, and the signal trigger 31 and the relay 32 are arranged on the protective shell 33.

[0055] In this embodiment, the flexible double-sided force-bearing mechanism includes a magazine clip rod fixing screw 7 , and one end of the magazine clip rod 3 passes through the large bearing 4 and cooperates with the gear 6 , and is fixed by the magazine clip rod fixing screw 7 .

[0056] In this embodiment, the flexible double-sided force-bearing mechanism further includes a handwheel nut 18 , and the support block fixing screw 2 passes through the support block 17 and is connected to the handwheel nut 18 .

[0057] In this embodiment, the flexible double-sided force-bearing mechanism also includes a support plate fixing screw 16, and a T-slot is arranged on the side of the support block 17. One end of the support plate fixing screw 16 slides in cooperation with the T-slot on the side of the support block 17, and the other end passes through the support plate 5 and is connected to the support plate fixing nut 8 to fix the support plate 5 to the support block 17.

[0058] In this embodiment, the guide groove on the support plate 5 is a "mountain"-shaped guide groove, including a middle guide sleeve and left and right guide grooves, and the left and right guide grooves are connected to the middle guide groove.

[0059] In this embodiment, it also includes a limiting fixing nut 34 and a limiting fixing screw 35. The limiting fixing nut 34 is slidably set in the T-slot on the base 1, and the limiting fixing screw 35 is set on the limiting fixing nut 34 to limit the moving position of the support block 17.

[0060] In addition, this embodiment also provides a method for grinding double tooth surfaces of flexible internal and external gears, which is performed using the above-mentioned device and is characterized in that it includes the following steps:

[0061] S11, the part to be ground is mounted on the clip rod 3 and fixed, and the adjustable reciprocating mechanism is rotated; the support block 17 is moved along the T-shaped of the base 1, so that the grinding head 19 completely covers the grinding part of the part to be processed; finally, the limit fixing nut 34 is fixed close to the support block 17 by the limit fixing screw 35, so as to ensure that the support block 17 can be quickly clamped and limited when the part is replaced and moved left and right;

[0062] S12, rough grinding: connect the grinding head 19 to the reciprocating mechanism guide rod 20 through threads, adjust the reciprocating stroke adjustment T-key 25 by manually rotating the reciprocating stroke adjustment T-slot 26, so that the reciprocating stroke of the grinding head 19 is greater than the length of the processed part, and fix the reciprocating stroke adjustment T-key 25 on the reciprocating stroke adjustment T-slot 26 through the fixing screw 27; install the part to be processed on the magazine clip rod 3, and place the grinding processing part of the part to be processed completely within the reciprocating motion of the grinding head 19 by moving the support block 17, and then fix the support block 17 on the base 1 through the support block fixing screw 2 and the handwheel nut 18; move the limit fixing nut 34, and limit and fix it close to the support block 17 through the limit fixing screw 35; select ductile iron material to make the grinding head material, and when grinding, use W20 white corundum grinding paste to apply on the part to be ground and the grinding head, and then Apply a proper amount of lubricating oil on the grinding head; set the relay interval time to 3 minutes, and set the speed of the adjustable speed motor 30 to S=500RPM; press and move the lever 13, and move the lever positioning pin 14 from the middle guide groove to the left guide groove, driving the lever connecting rod 12 to rotate counterclockwise around the lever fixing screw 11, so that the spring 10 bends and deforms, generating elastic force, and the elastic force is transmitted to the clip rod 3 through the meshing of the rack 9 and the gear 6, so that the processed part has a tendency to rotate. Due to the clearance between the processed part and the grinding head, at this time, the tooth surface on one side of the processed part is tightly fitted with the grinding head, and there is a gap between the tooth surface on the other side and the grinding head. The tooth surface tightly fitted with the grinding head is the grinding surface, and the signal trigger 31 is started, the motor rotates, driving the reciprocating stroke adjustment T-slot 26 and the reciprocating stroke adjustment T-key 25 to rotate at the same time, driving the grinding head 19 to reciprocate relative to the processed part to grind the grinding surface;

[0063] After the grinding of the tooth surface on one side of the workpiece is completed, the lever 13 is pressed and moved to push the lever positioning pin 14 from the left guide groove to the right guide groove, driving the lever connecting rod 12 to rotate clockwise around the lever fixing screw 11, so that the spring 10 is bent and deformed to generate elastic force, which is meshed with the gear 6 through the rack 9 to transmit the elastic force to the clip rod 3, so that the workpiece has a tendency to rotate, and the tooth surface on the other side is tightly fitted with the grinding head to form a grinding surface, and the signal trigger 31 is started, the motor rotates, driving the reciprocating stroke adjustment T-slot 26 and the reciprocating stroke adjustment T-key 25 to rotate at the same time, driving the grinding head 19 to reciprocate relative to the workpiece to grind the grinding surface;

[0064] S13, fine grinding: clean the parts and the grinding head, apply W5 white corundum grinding paste on the parts to be ground and the grinding head, and then apply an appropriate amount of lubricating oil; according to the method of step S12, the tooth surfaces on both sides of the processed parts are processed, the relay interval time is set to 3 minutes, and the speed of the adjustable speed motor 30 is set to S = 800RPM.

[0065] The second embodiment of the present invention is a flexible internal and external gear double tooth surface grinding device. The flexible internal and external gear double tooth surface grinding device may include: a base, a support component, a reciprocating mechanism component, a grinding head, a power component, a spring and a double-sided flexible force-bearing mechanism composed of a gear rack, etc.

[0066] Among them, the relationship between each main mechanism is as follows: the double-sided flexible force-bearing mechanism composed of a spring and a gear rack is fixed on the support plate 5 by a lever fixing screw 11, and the magazine clip rod 3 is also installed on the support plate 5. The support plate is fixed to the support block 17 by a fixing screw 16. There is a keyway and key positioning between the support block component 17 and the base 1. The support block can slide along the keyway of the base to meet the setting of different parts processing strokes; the limit fixing nut 34 can slide along the keyway of the base 1, and the support block 17 is positioned by the limit fixing screw 35, which can meet the requirements of accurate positioning every time after loading and unloading parts. The adjustable speed motor 30 is fixed to the fixed plate 29 by screws, the reciprocating stroke adjustment T-slot 26 is fixed to the adjustable speed motor shaft by the T-slot fixing screw 28, the reciprocating stroke adjustment T-key 25 is fixed in the T-slot by the T-key fixing screw 27, and the eccentric distance between the T-key and the T-slot is used to adjust the processing stroke of the reciprocating mechanism; the two ends of the reciprocating mechanism connecting rod 24 are respectively fixed to the adjusting T-key and the reciprocating mechanism guide rod 20 by the fixing screws 22 and the connecting rod bearing 23, and the other end of the reciprocating mechanism guide rod is connected to the grinding head by a thread, so as to finally realize the relative movement between the grinding head and the workpiece.

[0067] In some embodiments, the double-tooth surface flexible force-bearing mechanism composed of a spring and a gear rack includes: a magazine clip rod 3, a large bearing 4, a support plate 5, a gear 6, a magazine clip rod fixing screw 7, a support plate fixing nut 8, a rack 9, a spring 10, a lever fixing screw 11, a lever connecting rod 12, a lever 13, a lever positioning pin 14, and a small spring 15.

[0068] In some embodiments, the magazine clip rod 3 is positioned on the support plate 5 through a large bearing 4, and a gear 6 is fixed to one end of the magazine clip rod. The magazine clip rod and the gear 6 can rotate freely around the large bearing. The lower end of the rack 9 is meshed with the gear 6 for transmission. The middle of the upper end of the rack 9 is connected to the lever connecting rod 12 through a spring. The spring has a certain compression amount. The lever fixing screw 11 fixes the lever connecting rod to the support plate 5, thereby realizing the left and right lever movement. The spring bends and deforms to generate elastic force, which is transmitted to the magazine clip rod through the meshing of the gear and rack. The magazine clip rod fixes the product parts, so that the product parts are subjected to flexible force on the left and right double tooth surfaces relative to the grinding sleeve.

[0069] In some embodiments, the lever 13 compresses the small spring 15 into the lever connecting rod 12 component and fixes it through the lever positioning pin 14. In the embodiment, the manual reversing mechanism realizes double-sided left and right flexible force by moving the lever, and the lever positioning pin is positioned along the guide groove of the support plate 5.

[0070] In some embodiments, the reciprocating stroke adjustment T-key 25 cooperates with the reciprocating stroke adjustment T-slot 26. The T-key can slide relatively in the T-slot to adjust the eccentric distance by sliding, and it is fixed by the fixing screw 27 to achieve reciprocating stroke adjustment.

[0071] In some embodiments, a pressure guide groove is opened in the base 1, and the guide groove is used to position and fix the support block 16 and the fixing plate 29. The support block can slide along the guide groove to adjust the processing stroke of the device.

[0072] This embodiment also proposes a method for grinding double tooth surfaces of flexible internal and external gears.

[0073] The method of the present invention is generally described as follows

[0074] The processing method may include the following steps:

[0075] S11, install the fixing plate 29 on the base 1 by bolts, fix the motor 30 and the adjustable reciprocating mechanism 22, 23, 24, 25, 26, 27, 28 on the adjustable speed motor shaft, fix the reciprocating mechanism guide sleeve 21 on 29, install the reciprocating mechanism guide rod 20 in the guide sleeve, and the grinding sleeve 19 is connected to the reciprocating mechanism guide rod by threads. The screw 2 fixes the support block 17 on the base 1 by key and keyway, fixes the left and right flexible force machines on the support plate 5, and fixes the support plate on the support block 17 by screws. The support plate 5, the large bearing 4, and the clip rod 3 need to be adjusted to make their common axis coaxial with the reciprocating mechanism guide rod 20 and the grinding sleeve 19, and then fix them all. Finally, the ground parts are installed on the clip rod 3 and fixed. By rotating the adjustable reciprocating mechanism and moving the support block 17, it is fixed in a position where the part that needs to be ground is completely inside the reciprocating grinding sleeve, and finally the limit fixing nut 34 is fixed close to the support block 17 through the limit fixing screw 35 to ensure that the support block 17 can be quickly clamped and limited when the part is replaced and moved left and right.

[0076] S12, rough grinding: choose ductile iron material to make the grinding tool, use W20 white corundum grinding paste for rough grinding. When grinding, not only add grinding paste, but also apply lubricating oil for grinding. During grinding, the speed of the motor can be adjusted to S=500RPM, and the left and right flexible rotation force is about 10N.M. Rough grinding takes 3 minutes, and the surface roughness can be improved to Ra0.8.

[0077] S13, fine grinding: still choose ductile iron material to make the grinding tool, use W5 white corundum grinding paste for rough grinding. When grinding, not only add grinding paste, but also apply lubricating oil for grinding. During grinding, the adjustable speed motor S=800RPM, the left and right flexible rotation force is about 10N.M, and fine grinding is performed for 3 minutes, and the surface roughness can be improved to Ra0.4.

[0078] In some embodiments, a flexible grinding device and processing method for double tooth surfaces of an external gear comprises the following steps:

[0079] S21, install the fixing plate 29 on the base 1 by bolts, fix the motor 30 and the adjustable reciprocating mechanism 22, 23, 24, 25, 26, 27, 28 on the adjustable speed motor shaft, fix the reciprocating mechanism guide sleeve 21 on 29, install the reciprocating mechanism guide rod 20 in the guide sleeve, and connect the external gear grinding sleeve 19 to the reciprocating mechanism guide rod by threads. Screw 2 fixes the support block 17 on the base 1 by key and keyway, fixes the left and right flexible force bearing machines on the support plate 5, and fixes the support plate on the support block 17 by screws. It is necessary to adjust the support plate 5, the large bearing 4, and the clip rod 3 so that their common axis is coaxial with the reciprocating mechanism guide rod 20 and the grinding sleeve 19, and then fix them all. Finally, the ground parts are installed on the clip rod 3 and fixed. By rotating the adjustable reciprocating mechanism and moving the support block 17, it is fixed in a position where the part that needs to be ground is completely inside the reciprocating grinding sleeve, and finally the limit fixing nut 34 is fixed close to the support block 17 through the limit fixing screw 35 to ensure that the support block 17 can be quickly clamped and limited when the part is replaced and moved left and right.

[0080] S22, rough grinding of the two tooth surfaces of the outer gear: choose ductile iron material to make the grinding tool, use W20 white corundum grinding paste for rough grinding, not only add grinding paste, but also apply lubricating oil for grinding. The adjustable speed motor S=500RPM during grinding, the left and right flexible rotation force is about 10N.M, and the rough grinding is carried out for 3 minutes, and the surface roughness is processed to Ra0.8.

[0081] S23, fine grinding of the two tooth surfaces of the external gear: choose ductile iron material to make the grinding tool, use W5 white corundum grinding paste for rough grinding. When grinding, not only add grinding paste, but also apply lubricating oil for grinding. During grinding, the adjustable speed motor S=800RPM, the left and right flexible rotation force is about 10N.M, and fine grinding is carried out for 3 minutes. The surface roughness is processed to Ra0.4, which meets the product use requirements.

[0082] In some embodiments, a flexible grinding device and processing method for double tooth surfaces of an internal gear comprises the following steps:

[0083] S31, install the fixing plate 29 on the base 1 by bolts, fix the motor 30 and the adjustable reciprocating mechanism 22, 23, 24, 25, 26, 27, 28 on the adjustable speed motor shaft, fix the reciprocating mechanism guide sleeve 21 on 29, install the reciprocating mechanism guide rod 20 in the guide sleeve, and connect the internal gear grinding sleeve 19 to the reciprocating mechanism guide rod by threads. Screw 2 fixes the support block 17 on the base 1 by key and keyway, fixes the left and right flexible force bearing machines on the support plate 5, and fixes the support plate on the support block 17 by screws. It is necessary to adjust the support plate 5, the large bearing 4, and the clip rod 3 so that their common axis is coaxial with the reciprocating mechanism guide rod 20 and the grinding sleeve 19, and then fix them all. Finally, install the ground parts to the clip rod 3 and fix them. By rotating the adjustable reciprocating mechanism and moving the support block 17, it is fixed in a position where the part that needs to be ground is completely inside the reciprocating grinding sleeve, and finally the limit fixing nut 34 is fixed close to the support block 17 through the limit fixing screw 35 to ensure that the support block 17 can be quickly clamped and limited when the part is replaced and moved left and right.

[0084] S32, rough grinding of the two tooth surfaces of the internal gear: choose ductile iron material to make the grinding tool, use W20 white corundum grinding paste for rough grinding, not only add grinding paste, but also apply lubricating oil for grinding. The adjustable speed motor S=500RPM during grinding, the left and right flexible rotation force is about 10N.M, and the rough grinding is carried out for 3 minutes. The surface roughness is processed to Ra0.8.

[0085] S33, fine grinding of the two tooth surfaces of the internal gear: choose ductile iron material to make the grinding tool, use W5 white corundum grinding paste for rough grinding. When grinding, not only add grinding paste, but also apply lubricating oil for grinding. During grinding, the adjustable speed motor S=800RPM, the left and right flexible rotation force is about 10N.M, and fine grinding is carried out for 3 minutes. The surface roughness is processed to Ra0.4, which meets the product use requirements.

[0086] In some embodiments, a flexible grinding device and processing method for double tooth surfaces of internal and external gears comprises the following steps:

[0087] S41, proposes a gear grinding process that can grind different sizes and specifications and different roughness and precision requirements. The device has the following characteristics

[0088] 1. The workpiece has an outer circle and can be quickly positioned and clamped;

[0089] 2 When grinding the double tooth surface of the external gear, the external gear grinding sleeve can be installed for processing;

[0090] 3. When grinding the double tooth surface of the internal gear, the internal gear grinding sleeve can be installed for processing;

[0091] 4. The installation and disassembly of the device are simple and quick;

[0092] S42, rough grinding of double tooth surface of external gear, according to the requirements of product parts precision, product materials, grinding sleeve material parameters and other requirements to determine the rough grinding process device reciprocating speed, grinding paste particle size, left and right flexible force, grinding time and other cutting parameters.

[0093] S43, rough grinding of double tooth flanks of external gears, determine cutting parameters such as reciprocating speed, grinding paste particle size, grinding processing time, etc. during the finishing process.

[0094] S44, rough grinding of double tooth surface of internal gear, according to the requirements of product parts precision, product materials, grinding sleeve material parameters and other requirements to determine the rough grinding process device reciprocating speed, grinding paste particle size, left and right flexible force, grinding time and other cutting parameters.

[0095] S45, rough grinding of double tooth flanks of internal gears, determine cutting parameters such as reciprocating speed, grinding paste particle size, grinding processing time, etc. during the finishing process.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the field can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present invention, and these modifications or substitutions should all be covered within the protection scope of the present invention.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the field can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present invention, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. A flexible internal and external gear double tooth surface grinding device, characterized in that: It includes a manual reversing mechanism, a flexible double-sided force-bearing mechanism and a motor-driven reciprocating mechanism; The motor-driven reciprocating mechanism comprises a grinding head, a reciprocating mechanism guide rod, a reciprocating mechanism guide sleeve, a reciprocating mechanism connecting rod, a reciprocating stroke adjustment T-key, a reciprocating stroke adjustment T-slot, a fixed plate, an adjustable speed motor, a signal trigger, and a relay; one end of the grinding head is threadedly connected to one end of the reciprocating mechanism guide rod, the reciprocating mechanism guide rod is slidably matched with the guide sleeve shaft hole arranged on the side of the fixed plate, and the other end of the reciprocating mechanism guide rod is connected to one end of the reciprocating mechanism connecting rod; the other end of the reciprocating mechanism connecting rod is connected to the reciprocating stroke adjustment T-key, the reciprocating stroke adjustment T-key is fixed on the reciprocating stroke adjustment T-slot, and the reciprocating stroke adjustment T-slot is connected to the output shaft of the adjustable speed motor arranged on one side of the fixed plate; the fixed plate is fixed on the base; the signal trigger and the adjustable speed motor are both electrically connected to the relay; The flexible double-sided force-bearing mechanism includes a support block fixing screw, a magazine clip rod, a large bearing, a support plate, a gear, a support plate fixing nut, a rack, a spring, and a support block; the support block fixing screw is arranged in the support block, and the support block fixing screw is slidably arranged in the T-slot of the base, which can drive the support block to move along the T-slot direction of the base, and the support plate is fixed to the support block; the large bearing is arranged in the support plate, and one end of the magazine clip rod passes through the large bearing and cooperates with the gear; the other end of the magazine clip rod is coaxially arranged with the grinding head, and the part to be processed is installed at the other end of the magazine clip rod; the rack is meshed with the gear, and one end of the spring is connected to the rack; The manual reversing mechanism includes a shift rod fixing screw, a shift rod connecting rod, a shift rod, a shift rod positioning pin, and a small spring. The other end of the spring is connected to the shift rod connecting rod. The shift rod connecting rod is fixed to the support plate by the shift rod fixing screw, and the shift rod connecting rod can rotate around the shift rod fixing screw. The small spring is arranged in the shift rod connecting rod. The shift rod is inserted into the shift rod connecting rod to compress the small spring. One end of the shift rod positioning pin passes through the U-shaped groove on the side of the shift rod connecting rod and is connected to the shift rod, and the other end is arranged in the guide groove on the support plate and slides with the guide groove.

2. The flexible internal and external gear double tooth surface grinding device according to claim 1 is characterized in that: The motor-driven reciprocating mechanism also includes a reciprocating mechanism connecting rod fixing screw and a reciprocating mechanism connecting rod bearing. The other end of the reciprocating mechanism guide rod is connected to one end of the reciprocating mechanism connecting rod through the reciprocating mechanism connecting rod fixing screw and the reciprocating mechanism connecting rod bearing; the other end of the reciprocating mechanism connecting rod is connected to the reciprocating stroke adjustment T-key through the reciprocating mechanism connecting rod fixing screw and the reciprocating mechanism connecting rod bearing.

3. The flexible internal and external gear double tooth surface grinding device according to claim 2, characterized in that: The motor-driven reciprocating mechanism also includes a T-key fixing screw and a T-slot fixing screw. The reciprocating stroke adjustment T-key is fixed to the reciprocating stroke adjustment T-slot through the T-key fixing screw. The reciprocating stroke adjustment T-slot is connected to the output shaft of the adjustable speed motor arranged on one side of the fixed plate through the T-slot fixing screw.

4. The flexible internal and external gear double tooth surface grinding device according to claim 3 is characterized in that: The motor-driven reciprocating mechanism also includes a protective shell, which is fixed on the base. The reciprocating mechanism guide rod, reciprocating mechanism guide sleeve, reciprocating mechanism connecting rod, reciprocating stroke adjustment T-key, reciprocating stroke adjustment T-slot, fixing plate, and adjustable speed motor are all arranged in the protective shell, and the signal trigger and relay are arranged on the protective shell.

5. The flexible internal and external gear double tooth surface grinding device according to claim 4, characterized in that: The flexible double-sided force-bearing mechanism comprises a magazine clip rod fixing screw, one end of the magazine clip rod passes through a large bearing and cooperates with a gear and is fixed by the magazine clip rod fixing screw.

6. The flexible internal and external gear double tooth surface grinding device according to claim 5, characterized in that: The flexible double-sided force-bearing mechanism also includes a handwheel nut, and a support block fixing screw passes through the support block and is connected to the handwheel nut.

7. The flexible internal and external gear double tooth surface grinding device according to claim 6, characterized in that: The flexible double-sided force-bearing mechanism also includes a support plate fixing screw. A T-slot is arranged on the side of the support block. One end of the support plate fixing screw slides with the T-slot on the side of the support block, and the other end passes through the support plate and is connected to the support plate fixing nut to fix the support plate to the support block.

8. The flexible internal and external gear double tooth surface grinding device according to claim 7, characterized in that: The guide groove on the support plate is a "mountain"-shaped guide groove, including a middle guide sleeve and left and right guide grooves, and the left and right guide grooves are connected to the middle guide groove.

9. The flexible internal and external gear double tooth surface grinding device according to claim 8, characterized in that: It also includes a limit fixing nut and a limit fixing screw. The limit fixing nut is slidably arranged in a T-slot on the base, and the limit fixing screw is arranged on the limit fixing nut to limit the moving position of the support block.

10. A method for grinding double tooth surfaces of flexible internal and external gears, using the device as claimed in claim 9, characterized in that: The following steps are involved: S11, install the part to be ground on the clip rod and fix it, and rotate the adjustable reciprocating mechanism; move the support block along the T-shape of the base so that the grinding head completely covers the part to be ground; finally, fix the limit fixing nut close to the support block through the limit fixing screw to ensure that the limit can be quickly clamped when the support block is moved left and right when the part is replaced; S12, rough grinding: connect the grinding head to the guide rod of the reciprocating mechanism through threads, adjust the reciprocating stroke adjustment T-key by manually rotating the reciprocating stroke adjustment T-slot, so that the reciprocating stroke of the grinding head is greater than the length of the processed part, and fix the reciprocating stroke adjustment T-key to the reciprocating stroke adjustment T-slot through the fixing screw; install the part to be processed on the magazine clamp rod, and place the grinding processing part of the part to be processed completely within the reciprocating motion of the grinding head by moving the support block, and then fix the support block to the base through the support block fixing screw and the handwheel nut; move the limit fixing nut, and limit and fix it close to the support block through the limit fixing screw; choose ductile iron material to make the grinding head material. When grinding, use W20 white corundum grinding paste to apply on the part to be ground and the grinding head, and then apply on the part to be ground and the grinding head. Apply a proper amount of lubricating oil; set the relay interval time to 3 minutes, and set the adjustable speed motor speed to S=500RPM; press the lever to push the lever positioning pin from the middle guide groove to the left guide groove, drive the lever connecting rod to rotate counterclockwise around the lever fixing screw, and make the spring bend and deform to generate elastic force, which is transmitted to the clip rod through the meshing of the rack and the gear, so that the processed part has a tendency to rotate. Due to the clearance between the processed part and the grinding head, at this time, the tooth surface on one side of the processed part is tightly fitted with the grinding head, and there is a gap between the tooth surface on the other side and the grinding head. The tooth surface that is tightly fitted with the grinding head is the grinding surface. Start the signal trigger, the motor rotates, and drives the reciprocating stroke adjustment T-slot and the reciprocating stroke adjustment T-key to rotate at the same time, driving the grinding head to reciprocate relative to the processed part to grind the grinding surface; After the grinding of the tooth surface on one side of the workpiece is completed, the lever is pressed to push the lever positioning pin from the left guide groove to the right guide groove, driving the lever connecting rod to rotate clockwise around the lever fixing screw, causing the spring to bend and deform, generating elastic force, which is transmitted to the clip rod through the meshing of the rack and the gear, so that the workpiece has a tendency to rotate, and the tooth surface on the other side is tightly fitted with the grinding head, which is the grinding surface. The signal trigger is started, and the motor rotates, driving the reciprocating stroke adjustment T-slot and the reciprocating stroke adjustment T-key to rotate at the same time, driving the grinding head to reciprocate relative to the workpiece, and grinding the grinding surface; S13, fine grinding: clean the parts and the grinding head, apply W5 white corundum grinding paste on the parts to be ground and the grinding head, and then apply an appropriate amount of lubricating oil; according to the method of step S12, process the tooth surfaces on both sides of the processed parts, set the relay interval time to 3 minutes, and set the adjustable speed motor speed to S = 800RPM.

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