Gear clearance accurate grinding equipment

Abstract

The utility model discloses gear clearance accurate grinding equipment, which belongs to the technical field of gear processing equipment and comprises a gear, a three-jaw clamp movably mounted on one side of the gear and used for fixing gears with different sizes, and a support frame rotatably mounted on the three-jaw clamp and used for supporting the three-jaw clamp. When the gear grinding device is used, a gear is placed on the three-jaw clamp to be fixed, the position of a gear block on the three-jaw clamp can be adjusted by starting the adjusting motor, at the moment, the accurate grinding strip can be driven to ascend and descend in a reciprocating mode and move horizontally by starting the auxiliary motor, and the accurate grinding strip can pass through a gap between the accurate grinding strip and the gear block on the three-jaw clamp in the process to grind the gap. And the included angle between the two accurate grinding strips can be adjusted by starting the electric push rod, so that the included angle is matched with the angle of a gear block on the gear, gears with different gear block angles can be accurately ground, accurate grinding tools do not need to be frequently replaced, the accurate grinding process is faster, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear processing equipment, and particularly relates to a gear clearance fine grinding equipment. Background Technique

[0002] Gear clearance fine grinding is an important link in the gear processing process. Its goal is to improve the accuracy of gears and reduce the clearance between gears, thereby ensuring the stability and reliability of gear transmission.

[0003] In the prior art, during the fine grinding of gear clearance, a grinding block matching the gear clearance angle needs to be used, and it rubs back and forth at the gear clearance to achieve the grinding of the gear clearance. However, the angle of the grinding block used is usually fixed, and the grinding effect on gears with different angle clearances is poor, and it is rather cumbersome to frequently replace the grinding block. Content of the Utility Model

[0004] Aiming at the above existing technical deficiencies, the purpose of the utility model is to provide a gear clearance fine grinding equipment to solve some or all of the problems in the above background technique.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A gear clearance fine grinding equipment, comprising:

[0007] Gear;

[0008] A three-jaw chuck, movably installed on one side of the gear, for fixing gears of different sizes;

[0009] A support frame, rotatably installed on the three-jaw chuck, for supporting the three-jaw chuck;

[0010] An adjustment motor, arranged on one side of the support frame, and the output end of the adjustment motor penetrates through the support frame and is arranged on one side of the three-jaw chuck, for driving the three-jaw chuck and the gear to rotate;

[0011] A fine grinding structure, including a grinding structure arranged above the gear for grinding the gear and an adjustment structure arranged on the grinding structure for adjusting the angle of the grinding structure;

[0012] A pressing structure, arranged on the fine grinding structure, used in cooperation with the fine grinding structure, for controlling the movement of the fine grinding structure and making the fine grinding structure in close contact with the gear;

[0013] A lifting structure, arranged on the gear, used in cooperation with the pressing structure, for controlling the lifting of the pressing structure and the fine grinding structure.

[0014] Preferably, the grinding structure includes:

[0015] Two fine grinding bars are both arranged above the gear and correspond to the tooth blocks of the gear. The included angle between the two fine grinding bars is the same as the angle of the tooth blocks of the gear.

[0016] A connecting shaft is rotatably installed on the two fine grinding bars to provide a fulcrum for the rotation of the two fine grinding bars.

[0017] A U-shaped frame is arranged on the connecting shaft to provide support for the connecting shaft.

[0018] Preferably, the adjusting structure includes:

[0019] Two electric push rods are both arranged on the top side of the U-shaped frame.

[0020] Two movable rods are respectively arranged on the output ends of the two electric push rods and can move along with the output ends of the electric push rods.

[0021] Two connecting blocks are respectively arranged at one ends of the two movable rods.

[0022] Four connecting rods are respectively symmetrically and rotatably installed on one side of the two connecting blocks. The two connecting rods on the same side are rotatably installed on both sides of the same fine grinding bar.

[0023] Preferably, the pressing structure includes:

[0024] Multiple guide rods are all arranged on the top side of the U-shaped frame.

[0025] A movable frame is slidably installed on the guide rods. The movable frame is located above the U-shaped frame.

[0026] A stop bar is arranged at one end of the guide rod. The stop bar is in contact with the movable frame.

[0027] Multiple compression springs are slidably sleeved on the corresponding guide rods. The two ends of the compression springs are respectively arranged on the sides of the movable frame and the U-shaped frame close to each other for pressing the U-shaped frame.

[0028] A driving component is arranged on the movable frame for controlling the movement of the movable frame.

[0029] An extrusion component is arranged on the movable frame and is used in cooperation with the driving component for extruding the movable frame and making it move.

[0030] Preferably, the driving component includes:

[0031] Two threaded slide bars are both slidably installed on the movable frame.

[0032] Two reciprocating screw rods are respectively threadedly installed on the inner walls of the two threaded slide bars for driving the threaded slide bars to reciprocate when rotating.

[0033] Two auxiliary motors, the output ends of which are respectively arranged at one end of two reciprocating screws, are used to drive the reciprocating screws to rotate;

[0034] A plurality of fixing rods are slidably installed on the movable frame. Two fixing rods on the same side are respectively arranged on the inner walls of two threaded sliders, and are used to limit the moving direction of the movable frame;

[0035] A plurality of reset springs are slidably sleeved on a corresponding fixing rod. One end of the reset spring is arranged on the inner wall of the threaded slider, and the other end of the reset spring is arranged on the movable frame, and is used to reset the movement of the movable frame;

[0036] A frame is arranged on one side of the two auxiliary motors. Both of the two threaded sliders are slidably installed on the inner wall of the frame, and both of the two reciprocating screws are rotatably installed on the frame.

[0037] Preferably, the extrusion assembly includes:

[0038] A trapezoidal movable block is arranged on the movable frame;

[0039] A fixing plate is arranged on the frame, and the fixing plate is located above the movable frame;

[0040] A trapezoidal abutting block is arranged on the bottom side of the fixing plate and corresponds to the trapezoidal movable block.

[0041] Preferably, the lifting structure includes four lifting cylinders arranged on the support frame. The output ends of the four lifting cylinders are all installed on the bottom side of the frame and are used to control the lifting of the frame.

[0042] The beneficial effects of the present utility model are as follows:

[0043] In the present utility model, when in use, the gear is fixed on the three-jaw chuck. By turning on the adjusting motor, the position of the tooth block on the three-jaw chuck can be adjusted. At this time, by turning on the auxiliary motor, the fine grinding strip can be driven to perform reciprocating lifting and horizontal movement. During the process, the fine grinding strip will pass through the gap between the tooth blocks on the three-jaw chuck to polish the gap. And by turning on the electric push rod, the included angle between the two fine grinding strips can be adjusted to match the angle of the tooth blocks on the gear, so as to perform fine grinding on gears with different tooth block angles, thus eliminating the need to frequently replace the fine grinding tool, making the fine grinding process faster and improving the processing efficiency.

[0044] In the present utility model, by turning on the lifting cylinder, the height of the fine grinding strip can be adjusted to cooperate with the three-jaw chuck to clamp gears of different sizes, so that the fine grinding strip can polish the tooth block gaps on gears of different sizes. And when driving the auxiliary motor to lower the fine grinding strip for grinding, under the extrusion of the extrusion spring, the fine grinding strip can be more closely attached to the gap of the tooth block, so that it can be ground more evenly and the grinding effect can be improved. Brief Description of the Drawings

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0046] Figure 1 Structural schematic diagram of a gear clearance precision grinding device provided by an embodiment of the present invention;

[0047] Figure 2 Frame structure schematic diagram of a gear clearance precision grinding device provided by an embodiment of the present invention;

[0048] Figure 3 Threaded slide bar structure schematic diagram of a gear clearance precision grinding device provided by an embodiment of the present invention;

[0049] Figure 4 Moving frame structure schematic diagram of a gear clearance precision grinding device provided by an embodiment of the present invention;

[0050] Figure 5 Link structure schematic diagram of a gear clearance precision grinding device provided by an embodiment of the present invention;

[0051] Figure 6 Moving frame cross-sectional structure schematic diagram of a gear clearance precision grinding device provided by an embodiment of the present invention;

[0052] Figure 7 Precision grinding bar structure schematic diagram of a gear clearance precision grinding device provided by an embodiment of the present invention.

[0053] Explanation of the reference numerals in the drawings:

[0054] 1. Gear; 2. Three-jaw chuck; 3. Support frame; 4. Adjusting motor; 5. Precision grinding bar; 501. Connecting shaft; 502. U-shaped frame; 503. Electric push rod; 504. Moving rod; 505. Connecting block; 506. Link; 6. Guide rod; 601. Moving frame; 602. Stop bar; 603. Compression spring; 604. Threaded slide bar; 605. Reciprocating screw rod; 606. Auxiliary motor; 607. Fixed rod; 608. Return spring; 609. Frame; 610. Trapezoidal moving block; 611. Fixed plate; 612. Trapezoidal abutting block; 7. Lifting cylinder. Detailed Description of the Embodiments

[0055] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0056] Embodiment 1:

[0057] As Figures 1 to 7 shown, the present utility model provides a gear clearance precision grinding device, including: a gear 1, a three-jaw chuck 2 movably installed on one side of the gear 1 for fixing gears 1 of different sizes, a support frame 3 rotatably installed on the three-jaw chuck 2 for supporting the three-jaw chuck 2, and an adjustment motor 4 arranged on one side of the support frame 3 for driving the three-jaw chuck 2 and the gear 1 to rotate.

[0058] In order to be able to adjust the grinding angle according to the angle of the tooth blocks on gears 1 of different sizes so as to adapt to the grinding of gears 1 of different sizes, a precision grinding structure is arranged above the gear 1. The precision grinding structure includes a grinding structure arranged above the gear 1 for grinding the gear 1 and an adjustment structure arranged on the grinding structure for adjusting the angle of the grinding structure.

[0059] Among them, the grinding structure includes two precision grinding strips 5 arranged above the gear 1 and corresponding to the tooth blocks of the gear 1. The included angle between the two precision grinding strips 5 is the same as the angle of the tooth blocks of the gear 1. A connecting shaft 501 rotatably installed on the two precision grinding strips 5 provides a rotation fulcrum for the two precision grinding strips 5. A U-shaped frame 502 arranged on the connecting shaft 501 provides support for the connecting shaft 501. The two precision grinding strips 5 can rub on the tooth blocks to grind the tooth blocks and the gaps on the gear 1.

[0060] Among them, the adjustment structure includes two electric push rods 503 arranged on the top side of the U-shaped frame 502, two movable rods 504 respectively arranged on the output ends of the two electric push rods 503 and capable of moving along with the output ends of the electric push rods 503, two connecting blocks 505 respectively arranged at one ends of the two movable rods 504, and four connecting rods 506 respectively symmetrically rotatably installed on one side of the two connecting blocks 505. The two connecting rods 506 on the same side are rotatably installed on both sides of the same precision grinding strip 5. By turning on the electric push rods 503 on both sides, the two precision grinding strips 5 can be pulled to flip, and thus the included angle between the two precision grinding strips 5 can be adjusted to correspond to the angle of the tooth blocks on the gear 1.

[0061] Embodiment 2:

[0062] On the basis of Embodiment 1, in order to enable the two fine grinding bars 5 to closely fit the gaps between the tooth blocks of the gear 1 during the grinding process, a pressing structure for controlling the movement of the fine grinding structure and making the fine grinding structure in close contact with the gear 1 is arranged on the fine grinding structure, and a lifting structure for controlling the lifting of the pressing structure and the fine grinding structure is arranged on the gear 1.

[0063] Among them, the pressing structure includes a plurality of guide rods 6 arranged on the top side of the U-shaped frame 502, a movable frame 601 slidably mounted on the guide rods 6. The movable frame 601 is located above the U-shaped frame 502, a stop bar 602 arranged at one end of the guide rod 6, the stop bar 602 is in contact with the movable frame 601, a compression spring 603 slidably sleeved on the corresponding guide rod 6 for pressing the U-shaped frame 502, and both ends of the compression spring 603 are respectively arranged on the sides of the movable frame 601 and the U-shaped frame 502 close to each other, a driving component arranged on the movable frame 601 for controlling the movement of the movable frame 601, and a pressing component arranged on the movable frame 601 for pressing the movable frame 601 and making it move.

[0064] Specifically, the driving component includes two threaded sliders 604 slidably mounted on the movable frame 601, two reciprocating screws 605 respectively threadedly mounted on the inner walls of the two threaded sliders 604 for driving the threaded sliders 604 to reciprocate when rotating, two auxiliary motors 606 with output ends respectively arranged at one ends of the two reciprocating screws 605 for driving the reciprocating screws 605 to rotate, a plurality of fixed rods 607 slidably mounted on the movable frame 601 for restricting the moving direction of the movable frame 601. Two fixed rods 607 on the same side are respectively arranged on the inner walls of the two threaded sliders 604, a return spring 608 slidably sleeved on a corresponding fixed rod 607 for resetting the movement of the movable frame 601, one end of the return spring 608 is arranged on the inner wall of the threaded slider 604, the other end of the return spring 608 is arranged on the movable frame 601, a frame 609 arranged on one side of the two auxiliary motors 606, both two threaded sliders 604 are slidably mounted on the inner wall of the frame 609, both two reciprocating screws 605 are rotatably mounted on the frame 609. Starting the two auxiliary motors 606 will drive the reciprocating screws 605 to rotate. During the rotation of the reciprocating screws 605, the threaded sliders 604 will be driven to reciprocate. The reciprocating threaded sliders 604 will drive the movable frame 601 to reciprocate, so that the trapezoidal movable block 610 is squeezed by the trapezoidal abutment block 612 and drives the movable frame 601 to move downward. The downward moving movable frame 601 will make the U-shaped frame 502 drive the two fine grinding bars 5 to contact the tooth blocks and the gap surfaces on the gear 1 and rub on the tooth blocks. The continuously descending movable frame 601 will slide on the guide rod 6 and compress the compression spring 603, so that the fine grinding bar 5 can fit more closely with the gap surface of the tooth block.

[0065] Specifically, the extrusion assembly includes a trapezoidal movable block 610 arranged on the movable frame 601, a fixed plate 611 arranged on the frame 609, the fixed plate 611 being located above the movable frame 601, and a trapezoidal abutting block 612 arranged on the bottom side of the fixed plate 611 and corresponding to the trapezoidal movable block 610. During the movement of the trapezoidal movable block 610, it will be extruded by the trapezoidal abutting block 612 to drive the movable frame 601 to move downward.

[0066] Among them, the lifting structure includes four lifting cylinders 7 arranged on the support frame 3 for controlling the lifting of the frame 609. The output ends of the four lifting cylinders 7 are all installed on the bottom side of the frame 609. Turning on the lifting cylinders 7 can make their output ends drive the frame 609 to lift, so as to adjust the distance between the fine grinding strip 5 and the tooth blocks on the gear 1 according to the size of the gear 1.

[0067] Working principle: When in use, the gear 1 is installed on the three-jaw fixture 2. By starting the adjustment motor 4, the three-jaw fixture 2 and the gear 1 can be driven to rotate, so as to adjust the position of the tooth blocks on the gear 1, making the tooth blocks of the gear 1 correspond to the two fine grinding bars 5 above. By starting the electric push rods 503 on both sides, the output end can drive the movable rod 504 to move. The moving movable rod 504 can drive the connecting block 505 to move, causing the connecting block 505 to pull one end of the two connecting rods 506 to flip and move, while the other ends of the two connecting rods 506 will pull the two fine grinding bars 5 to flip. The flipped fine grinding bars 5 will rotate on the connecting shaft 501, so that the fine grinding bars 5 can achieve the flipping effect, and further the included angle between the two fine grinding bars 5 can be adjusted to correspond to the angle of the tooth blocks on the gear 1. Then, start the two auxiliary motors 606. The output end of the auxiliary motor 606 will drive the reciprocating screw rod 605 to rotate. During the rotation of the reciprocating screw rod 605, it will drive the threaded slide bar 604 to slide reciprocally on the frame 609 through the threaded cooperation with the threaded slide bar 604. The reciprocally sliding threaded slide bar 604 will drive the movable frame 601 to slide reciprocally through the cooperation with the fixed rod 607. During the movement of the movable frame 601, it will drive the trapezoidal movable block 610 to contact the trapezoidal abutment block 612, causing the trapezoidal movable block 610 to be squeezed by the trapezoidal abutment block 612 and drive the movable frame 601 to move downward. The downward moving movable frame 601 will slide on the fixed rod 607 in the threaded slide bar 604 and compress the return spring 608. At the same time, the continuously descending movable frame 601 will drive the U-shaped frame 502 to move downward through the guide rod 6, so that the U-shaped frame 502 drives the two fine grinding bars 5 to contact the tooth blocks and the clearance surface on the gear 1. After contact, the continuously descending movable frame 601 will slide on the guide rod 6 and compress the extrusion spring 603. Under the action of the extrusion spring 603, the fine grinding bars 5 on the U-shaped frame 502 can fit more closely with the clearance surface of the tooth blocks. Then, under the action of the auxiliary motor 606, the two fine grinding bars 5 continuously move horizontally and rub on the tooth blocks to polish the tooth blocks and the gaps on the gear 1 until the continuously moving trapezoidal movable block 610 breaks away from the extrusion of the trapezoidal abutment block 612. At this time, the return spring 608 in the compressed state will push the movable frame 601 to rise and reset, and then drive the guide rod 6 and the U-shaped frame 502 to rise and reset through the stop bar 602, so that the fine grinding bars 5 break away from the contact with the tooth blocks. At this time, it can be selected to control the fine grinding bars 5 to move back. During the process, the fine grinding bars 5 will rise and fall again to polish the tooth blocks, or control the adjustment motor 4 to drive the gear 1 to rotate to change the polished tooth blocks and remove the gear 1 from the three-jaw fixture 2 for replacement. When grinding gears 1 of different sizes, by starting the lifting cylinder 7, its output end can drive the frame 609 to rise and fall to adjust the distance between the fine grinding bars 5 and the tooth blocks on the gear 1, and the included angle between the two fine grinding bars 5 can be adjusted according to the angle of the tooth blocks.

[0068] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these modifications and variations.

Claims

1. A gear clearance fine grinding device, characterized in that: include: Gear (1); A three-jaw clamp (2) movably mounted on one side of the gear (1) and used to fix gears (1) of different sizes; A support frame (3) is rotatably mounted on the three-jaw clamp (2) and is used to support the three-jaw clamp (2); An adjusting motor (4) is arranged on one side of the support frame (3); an output end of the adjusting motor (4) passes through the support frame (3) and is arranged on one side of the three-jaw clamp (2), and is used to drive the three-jaw clamp (2) and the gear (1) to rotate; A fine grinding structure, comprising a grinding structure arranged above the gear (1) for grinding the gear (1) and an adjustment structure arranged on the grinding structure for adjusting the angle of the grinding structure; A pressing structure, arranged on the fine grinding structure and used in conjunction with the fine grinding structure, for controlling the movement of the fine grinding structure and making the fine grinding structure in close contact with the gear (1); The lifting structure is arranged on the gear (1) and is used in conjunction with the clamping structure to control the lifting and lowering of the clamping structure and the fine grinding structure.

2. A gear clearance fine grinding device as claimed in claim 1, characterized in that: The grinding structure comprises: Two fine grinding bars (5) are arranged above the gear (1) and correspond to the tooth block of the gear (1), and the angle between the two fine grinding bars (5) is the same as the angle of the tooth block of the gear (1); A connecting shaft (501) is rotatably mounted on the two fine grinding bars (5) to provide a fulcrum for the two fine grinding bars (5); The U-shaped frame (502) is arranged on the connecting shaft (501) to provide support for the connecting shaft (501).

3. A gear clearance fine grinding device as claimed in claim 1, characterized in that: The regulatory structure comprises: Two electric push rods (503) are arranged on the top side of the U-shaped frame (502); Two movable rods (504) are respectively arranged on the output ends of the two electric push rods (503) and can move following the output ends of the electric push rods (503); Two connecting blocks (505) are respectively arranged at one end of the two movable rods (504); The four connecting rods (506) are symmetrically mounted on one side of the two connecting blocks (505), and the two connecting rods (506) on the same side are mounted on both sides of the same fine grinding bar (5).

4. The gear clearance fine grinding device according to claim 1, characterized in that: The compression structure comprises: A plurality of guide rods (6) are arranged on the top side of the U-shaped frame (502); A movable frame (601) is slidably mounted on the guide rod (6), and the movable frame (601) is located above the U-shaped frame (502); A blocking bar (602) is arranged at one end of the guide rod (6), and the blocking bar (602) is in contact with the movable frame (601); A plurality of extrusion springs (603) are slidably sleeved on a corresponding guide rod (6), and two ends of the extrusion spring (603) are respectively arranged on a side where the movable frame (601) and the U-shaped frame (502) are close to each other, and are used to extrude the U-shaped frame (502); A driving assembly, arranged on the movable frame (601), and used for controlling the movement of the movable frame (601); The extrusion assembly is arranged on the movable frame (601) and is used in conjunction with the driving assembly to extrude the movable frame (601) and move it.

5. A gear clearance fine grinding device as claimed in claim 4, characterized in that: The drive assembly comprises: Two threaded slide bars (604) are both slidably mounted on the movable frame (601); Two reciprocating screws (605) are respectively threadedly mounted on the inner walls of the two threaded slides (604) and are used to drive the threaded slides (604) to reciprocate when rotating; Two auxiliary motors (606), the output ends of which are respectively arranged at one end of the two reciprocating screws (605), and are used to drive the reciprocating screws (605) to rotate; A plurality of fixed rods (607) are slidably mounted on the movable frame (601), and two fixed rods (607) located on the same side are respectively arranged on the inner walls of two threaded slide bars (604) to limit the moving direction of the movable frame (601); A plurality of return springs (608) are slidably sleeved on a corresponding fixed rod (607), one end of the return spring (608) is arranged on the inner wall of the threaded slide bar (604), and the other end of the return spring (608) is arranged on the movable frame (601), so as to reset the movement of the movable frame (601); The frame (609) is arranged on one side of the two auxiliary motors (606), the two threaded slide bars (604) are both slidably mounted on the inner wall of the frame (609), and the two reciprocating screw rods (605) are both rotatably mounted on the frame (609).

6. A gear clearance fine grinding device as claimed in claim 4, characterized in that: The extrusion assembly comprises: A trapezoidal movable block (610) is arranged on the movable frame (601); A fixed plate (611) is arranged on the frame (609), and the fixed plate (611) is located above the movable frame (601); The trapezoidal stop block (612) is arranged on the bottom side of the fixed plate (611) and corresponds to the trapezoidal movable block (610).

7. The gear clearance fine grinding device according to claim 1, characterized in that: The lifting structure comprises four lifting cylinders (7) arranged on a support frame (3), and output ends of the four lifting cylinders (7) are all installed on the bottom side of the frame (609) for controlling the lifting of the frame (609).

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