A high-precision machining process and grinding machine for gears

Abstract

The present invention discloses a high-precision processing technology and a grinding machine for gears, including an operating table, four limit rods are fixedly installed in the middle of the top of the operating table, and a lifting platform is movably mounted on the four limit rods. A fixed plate and a baffle are movably mounted at both ends of the lifting platform, and a second motor is fixedly installed on the outer side of the fixed plate, and the output end of the second motor is connected to a fixed shaft in a transmission manner. The high-precision processing grinding machine for gears provided by the present invention is provided by installing a clamping block in the installation groove around the fixed shaft through a sleeve frame, opening a clamping slot at the bottom of the outer side of the installation slot and installing a pair of springs, and the clamping block is elastically supported by the springs, and a pair of springs are installed on the outer side of the baffle. After the baffle is pulled outward to install the gear, the baffle will reset and push the top rod, the sleeve frame and the clamping block inward, thereby clamping the gear, thereby facilitating the installation and removal of the gear.

Description

Technical Field

[0001] The invention relates to a grinding machine, in particular to a high-precision machining process for gears and a grinding machine thereof. Background Art

[0002] As a transmission component, gears play a very important role in large equipment and are therefore widely used. However, the coordination of gears requires high precision, so the production accuracy of gears usually has high requirements. Professional high-precision gear processing grinders are usually required for gear processing.

[0003] There is a high-precision grinder for processing gears, publication number: CN211516938U, a high-precision grinder for processing gears, including a workbench, a fixture arranged on the workbench and used to clamp a workpiece, and a cooling component arranged under the workbench and used to absorb the heat generated by the workpiece processing. A cylinder for driving the fixture to move is provided under the workbench, and the cylinder is arranged along the height direction of the workbench. The device has a relatively simple fixture design for the gear, which makes the installation and disassembly of the gear more difficult. Summary of the invention

[0004] The object of the present invention is to provide a high-precision machining process for gears and a grinding machine thereof, which mainly comprises installing a clamping block through a mounting groove on the surface of a fixed shaft of the gear, and controlling the position of the clamping block by cooperating with the movement of a baffle through a sleeve frame and a push rod on the outside of the clamping block, thereby solving the problem of troublesome installation and disassembly of gears in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a high-precision machining grinder for gears, comprising an operating table, wherein four limit rods are fixedly installed in the middle of the top of the operating table, and a lifting platform is movably sleeved on the four limit rods, and a fixed plate and a baffle are movably installed at both ends of the lifting platform, and a second motor is fixedly installed on the outer side of the fixed plate, and the output end of the second motor is transmission-connected with a fixed shaft, and four mounting grooves are equidistantly provided on the circumference of the fixed shaft, and a sleeve frame is movably sleeved inside the mounting groove, and a clamping block is movably sleeved inside the sleeve frame, and a clamping groove is provided on the right side of the bottom of the mounting groove, and a second spring is elastically connected to the bottom of the clamping groove, and a push rod is fixedly connected to the outer side of the sleeve frame, and a pair of sliding rods are sleeved on the bottoms of the fixed plate and the baffle, and the right side of the baffle and the inner wall of the lifting platform are elastically connected A pair of first springs are connected, and the first springs are sleeved on the sliding rod. The right end of the fixed shaft is movably sleeved on the inside of the baffle. A positioning ring is fixedly installed on the left side of the fixed shaft. The baffle is pulled outward, and then the gear is sleeved on the fixed shaft. At this time, the card block is clamped in the inside of the card slot and does not affect the installation of the gear. After the gear is installed, the baffle is released. At this time, the baffle is reset under the action of the first spring, and the top rod on the outside of the sleeve frame is pushed inward, so that the sleeve frame moves inward synchronously with the card block. At this time, the inclined surface at the lower left corner of the card block will make the card block slide out of the card slot and then be clamped on the side of the gear, and cooperate with the positioning ring to position the gear. When the gear is disassembled, the baffle is pulled outward. At this time, the gear can be moved directly outward to push the sleeve frame and the card block to move outward, and the card block will enter the card slot again, thereby facilitating the disassembly of the gear.

[0006] Furthermore, a hydraulic cylinder is fixedly installed in the middle of the bottom of the operating table, the output end of the hydraulic cylinder is transmission-connected to the bottom of the lifting platform, and the four corners of the top of the lifting platform are fixedly installed with limit sleeves, which are sleeved on the top of the limit rod.

[0007] It is explained here that the limit sleeves at the top of the four corners of the lifting platform wrap the top of the limit rod. When the lifting platform moves down to the lowest height, the limit sleeves will hang on the top of the limit rod, thereby reducing the load on the lifting platform, thereby protecting the lifting platform and extending the service life of the lifting platform.

[0008] Furthermore, a first motor is fixedly mounted on the left side of the lifting platform via a support frame, a grinding tool is fixedly mounted on the top of the lifting platform via a bracket, and an output end of the first motor is transmission-connected to the grinding tool.

[0009] The first motor on the top of the support frame pulls the grinding tool to work. When the lifting platform moves upward to overlap the gear on the fixed shaft to the bottom of the grinding tool, the grinding tool will process the gear.

[0010] Furthermore, a water tank is fixedly installed at the bottom of the operating table, a cooling water pipe is fixedly connected to the top of the water tank, and a water outlet of the cooling water pipe is fixedly connected to the inside of the grinding tool from the side of the grinding tool.

[0011] It is explained here that the interior of the water tank filters and cools the returning water, so that the cooling water can be recycled, and the cooling water pipe sprays water to cool the gears and grinding tools.

[0012] Furthermore, a return pipe is fixedly installed on the top of the water tank, and the return pipe passes through the top of the operating table and is fixedly connected to the bottom of the lifting platform.

[0013] The cooling water falls from the surface of the gears and grinding tools into the lifting platform at the bottom, and then flows back to the inside of the water tank through the return pipe from the top of the lifting platform, where it is further cooled and filtered, and then recycled.

[0014] Furthermore, when the clamping block is located on the left side, it overlaps the side surface of the gear, and when the clamping block is located on the right side, it is clamped inside the clamping slot, and the upper right corner and the lower left corner of the clamping block are both provided with inclined surfaces.

[0015] After the gear is installed, the block is supported by the baffle along with the frame and the push rod and is connected to the side of the gear. When removing the gear, the gear and the block are moved outward synchronously. When the gear falls into the slot again, the gear can be removed from the fixed shaft. The inclined surfaces at the upper right and lower left corners of the block facilitate the installation of the gear.

[0016] A high-precision gear machining process based on the above-mentioned grinder comprises the following steps:

[0017] Step 1: Pull open the baffle, and when the distance between the end of the fixed shaft and the baffle is sufficient for installing the gear, install the gear onto the fixed shaft and push the gear to slide along the fixed shaft until the block locks the gear, and then release the baffle;

[0018] Step 2: Start the first motor, and the first motor drives the grinding tool to start working;

[0019] Step 3: Start the hydraulic cylinder to lift the lifting platform until the gear on the lifting platform overlaps the bottom of the grinding tool, and then start grinding;

[0020] Step 4: After the grinding tool comes into contact with the gear and starts grinding, the second motor is started, and the second motor drives the fixed shaft to start rotating, and the fixed shaft drives the gear to rotate. At the same time, the hydraulic cylinder starts to make regular vertical movements as the tooth line of the gear changes, so that the grinding tool can continuously grind the gear, with good grinding effect and high work efficiency.

[0021] Step 5: After the grinding is completed, the hydraulic cylinder is lowered until the lifting platform falls onto the operating table;

[0022] Step 6: Pull the baffle outward. At this time, the gear can be moved directly outward to push the frame and the block outward. The block will enter the slot again. Pull open the baffle, remove the polished gear, replace it with a new gear, and repeat the above steps.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention provides a high-precision machining grinder for gears. A clamping block is installed in the installation groove around the fixed shaft through a sleeve frame, a clamping slot is opened at the bottom of the outer side of the installation slot and a pair of springs are installed. The clamping block is elastically supported by the springs, and a pair of springs are installed on the outer side of the baffle. After the baffle is pulled outward to install the gear, the baffle will reset and push the push rod, the sleeve frame and the clamping block inward, thereby clamping the gear, thereby facilitating the installation and removal of the gear.

[0025] 2. The present invention provides a high-precision processing grinder for gears. A limit rod is respectively connected to the four corners of the lifting platform, and a limit sleeve is arranged on the top of the limit rod. When the hydraulic cylinder descends, the lifting platform will be restricted by the limit sleeve when it descends to the lowest height and stop descending, thereby reducing the load of the hydraulic cylinder and further protecting the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a side structural schematic diagram of the present invention;

[0028] Figure 3 It is a front cross-sectional view of the lifting platform of the present invention;

[0029] Figure 4 It is a partial cross-sectional view of the fixed shaft of the present invention;

[0030] Figure 5 For the present invention Figure 3 An enlarged schematic diagram of point A.

[0031] In the figure: 1. operating table; 2. hydraulic cylinder; 3. water tank; 4. support frame; 5. first motor; 6. second motor; 7. grinding tool; 8. lifting platform; 9. fixed plate; 10. baffle; 11. fixed shaft; 12. slide bar; 13. first spring; 14. limit rod; 15. limit sleeve; 16. mounting groove; 17. sleeve frame; 18. clamping block; 19. ejector rod; 20. positioning ring; 21. clamping groove; 22. second spring; 23. cooling water pipe. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] See also Figure 1-5 , a high-precision machining grinder for gears, comprising an operating table 1, four limiting rods 14 are fixedly installed in the middle of the top of the operating table 1, and a lifting platform 8 is movably sleeved on the four limiting rods 14. A fixing plate 9 and a baffle 10 are movably installed at both ends of the lifting platform 8, and a second motor 6 is fixedly installed on the outer side of the fixing plate 9. The output end of the second motor 6 is connected to a fixed shaft 11 in a transmission manner. Four mounting grooves 16 are equidistantly provided on the circumference of the fixed shaft 11, and a sleeve frame 17 is movably sleeved inside the mounting groove 16. A clamping block 18 is movably sleeved inside the sleeve frame 17. A clamping groove 21 is provided on the right side of the bottom of the mounting groove 16, and a second spring 22 is elastically connected to the bottom of the clamping groove 21. A push rod 19 is fixedly connected to the outer side of the sleeve frame 17, and a pair of sliding rods 12 are sleeved on the bottom of the fixing plate 9 and the baffle 10. A pair of first springs 13 are elastically connected between the right side of the baffle 10 and the inner wall of the lifting platform 8. The first spring 13 is sleeved on the slide bar 12, and the right end of the fixed shaft 11 is movably sleeved on the inside of the baffle 10. The left side of the fixed shaft 11 is fixedly installed with a positioning ring 20. The baffle 10 is pulled outward, and then the gear is sleeved on the fixed shaft 11. At this time, the block 18 is clamped in the inside of the slot 21 without affecting the installation of the gear. When the gear is installed, the baffle 10 is released. At this time, the baffle 10 is reset under the action of the first spring 13, and the push rod 19 on the outside of the sleeve frame 17 is pushed inward, so that the sleeve frame 17 moves inward synchronously with the block 18. At this time, the inclined surface at the lower left corner of the block 18 will make the block 18 slide out of the slot 21 and then be clamped on the side of the gear, and cooperate with the positioning ring 20 to position the gear. When the gear is disassembled, the baffle 10 is pulled outward, and the gear can be moved directly outward to push the sleeve frame 17 and the block 18 to move outward, and the block 18 will enter the slot 21 again, thereby facilitating the disassembly of the gear.

[0034] A hydraulic cylinder 2 is fixedly installed in the middle of the bottom of the operating platform 1, and the output end of the hydraulic cylinder 2 is transmission-connected to the bottom of the lifting platform 8. Limiting sleeves 15 are fixedly installed at the four corners of the top of the lifting platform 8, and the limiting sleeves 15 are sleeved on the top of the limiting rod 14.

[0035] It is explained here that the limiting sleeves 15 at the top of the four corners of the lifting platform 8 wrap the top of the limiting rod 14. When the lifting platform 8 moves downward to the lowest height, the limiting sleeves 15 will be hung on the top of the limiting rod 14, thereby reducing the load on the lifting platform 8, thereby protecting the lifting platform 8 and extending the service life of the lifting platform 8.

[0036] A first motor 5 is fixedly mounted on the left side of the lifting platform 8 via a support frame 4 , a grinding tool 7 is fixedly mounted on the top of the lifting platform 8 via a bracket, and an output end of the first motor 5 is transmission-connected to the grinding tool 7 .

[0037] The first motor 5 at the top of the support frame 4 pulls the grinding tool 7 to work. When the lifting platform 8 moves upward to overlap the gear on the fixed shaft 11 to the bottom of the grinding tool 7, the grinding tool 7 will process the gear.

[0038] A water tank 3 is fixedly installed at the bottom of the operating table 1 , and a cooling water pipe 23 is fixedly connected to the top of the water tank 3 . The water outlet of the cooling water pipe 23 is fixedly connected to the inside of the grinding tool 7 from the side of the grinding tool 7 .

[0039] It is explained here that the interior of the water tank 3 filters and cools the refluxed water, so that the cooling water can be recycled, and the cooling water pipe 23 sprays water to cool the gears and grinding tools.

[0040] A return pipe is fixedly installed on the top of the water tank 3 , and the return pipe passes through the top of the operating platform 1 and is fixedly connected to the bottom of the lifting platform 8 .

[0041] The cooling water falls from the surface of the gear and the grinding tool into the lifting platform 8 at the bottom, and then flows back to the inside of the water tank through the return pipe from the top of the lifting platform 8, and is further cooled and filtered, and then recycled.

[0042] When the clamping block 18 is located on the left side, it overlaps the side surface of the gear. When the clamping block 18 is located on the right side, it is clamped inside the clamping slot 21. The clamping block 18 has inclined surfaces at the upper right corner and the lower left corner.

[0043] After the gear is installed, the block 18 is supported by the baffle 10 along with the sleeve frame 17 and the push rod 19 and is clamped on the side of the gear. When the gear is removed, the gear and the block 18 are moved outward synchronously. When the gear falls into the slot 21 again, the gear can be removed from the fixed shaft 11. The inclined surfaces at the upper right corner and the lower left corner of the block 18 facilitate the installation of the gear.

[0044] A high-precision machining process for gears based on the above-mentioned grinding machine comprises the following steps:

[0045] Step 1: Pull open the baffle 10, and when the distance between the end of the fixed shaft 11 and the baffle 10 is sufficient for installing the gear, install the gear onto the fixed shaft 11 and push the gear to slide along the fixed shaft 11 until the block 18 locks the gear, and then release the baffle 10;

[0046] Step 2: Start the first motor 5, and the first motor 5 drives the grinding tool 7 to start working;

[0047] Step 3: Start the hydraulic cylinder 2 to lift the lifting platform 8 until the gear on the lifting platform 8 overlaps the bottom of the grinding tool 7, and then start the grinding work;

[0048] Step 4: After the grinding tool 7 comes into contact with the gear and starts grinding, the second motor 6 is started, and the second motor 6 drives the fixed shaft 11 to start rotating, and the fixed shaft 11 drives the gear to rotate. At the same time, the hydraulic cylinder 2 starts to make regular vertical movements as the tooth line of the gear changes, so that the grinding tool 7 can continuously grind the gear, with good grinding effect and high work efficiency.

[0049] Step 5: After the grinding is completed, the hydraulic cylinder 2 is lowered until the lifting platform 8 falls onto the operating platform 1;

[0050] Step 6: Pull open the baffle 10, remove the polished gear, replace it with a new gear, and repeat the above steps.

Claims

1. A high-precision grinding machine for gears, comprising an operating table (1), characterized in that: Four limiting rods (14) are fixedly installed in the middle of the top of the operating table (1), and a lifting platform (8) is movably mounted on the four limiting rods (14). A fixing plate (9) and a baffle (10) are movably mounted on both ends of the lifting platform (8). A second motor (6) is fixedly installed on the outer side of the fixing plate (9), and the output end of the second motor (6) is drivingly connected to a fixing shaft (11). Four mounting grooves (16) are equidistantly provided on the circumference of the fixing shaft (11), and a sleeve frame (17) is movably mounted inside the mounting groove (16). A clamping block (18) is movably mounted inside the sleeve frame (17). A clamping groove (21) is provided on the right side of the bottom of the mounting groove (16), and the bottom of the clamping groove (21) is elastically movable. A second spring (22) is connected, the outer side of the sleeve frame (17) is fixedly connected to a push rod (19), a pair of slide bars (12) are sleeved on the bottom of the fixed plate (9) and the baffle (10), a pair of first springs (13) are elastically connected between the right side of the baffle (10) and the inner wall of the lifting platform (8), the first springs (13) are sleeved on the slide bars (12), the right end of the fixed shaft (11) is movably sleeved inside the baffle (10), a positioning ring (20) is fixedly installed on the left side of the fixed shaft (11), the clamping block (18) overlaps the side of the gear when it is located on the left side, and is clamped inside the clamping slot (21) when it is located on the right side, and the clamping block (18) is provided with inclined surfaces at the upper right corner and the lower left corner.

2. A high-precision grinding machine for gears according to claim 1, characterized in that: A hydraulic cylinder (2) is fixedly installed in the middle of the bottom of the operating platform (1), the output end of the hydraulic cylinder (2) is transmission-connected to the bottom of the lifting platform (8), and limit sleeves (15) are fixedly installed at the four corners of the top of the lifting platform (8), and the limit sleeves (15) are sleeved on the top of the limit rod (14).

3. The high-precision grinding machine for gears according to claim 1, characterized in that: A first motor (5) is fixedly mounted on the left side of the lifting platform (8) via a support frame (4), a grinding tool (7) is fixedly mounted on the top of the lifting platform (8) via a bracket, and an output end of the first motor (5) is drivingly connected to the grinding tool (7).

4. The high-precision grinding machine for gears according to claim 1, characterized in that: A water tank (3) is fixedly mounted at the bottom of the operating table (1), a cooling water pipe (23) is fixedly connected to the top of the water tank (3), and a water outlet of the cooling water pipe (23) is fixedly connected to the inside of the grinding tool (7) from the side of the grinding tool (7).

5. The high-precision grinding machine for gears according to claim 4, characterized in that: A return pipe is fixedly installed on the top of the water tank (3), and the return pipe passes through the top of the operating table (1) and is fixedly connected to the bottom of the lifting platform (8).

6. A processing technology based on the high-precision machining grinder according to any one of claims 1 to 5, characterized in that: The steps include: Step 1: Pull open the baffle (10), and when the distance between the end of the fixed shaft (11) and the baffle (10) is sufficient for installing the gear, install the gear onto the fixed shaft (11) and push the gear to slide along the fixed shaft (11) until the block (18) locks the gear, and then release the baffle (10); Step 2: starting the first motor (5), so that the first motor (5) drives the grinding tool (7) to start working; Step 3: Start the hydraulic cylinder (2) to lift up the lifting platform (8) until the gear on the lifting platform (8) overlaps the bottom of the grinding tool (7), and the grinding work begins; Step 4: After the grinding tool (7) comes into contact with the gear and starts grinding, the second motor (6) is started, and the second motor (6) drives the fixed shaft (11) to start rotating, and the fixed shaft (11) drives the gear to rotate, and at the same time, the hydraulic cylinder (2) starts to make regular vertical movements as the tooth line of the gear changes, so that the grinding tool (7) can continuously grind the gear, with good grinding effect and high work efficiency; Step 5: After the grinding is completed, the hydraulic cylinder (2) is lowered until the lifting platform (8) falls onto the operating table (1); Step 6: Pull the baffle (10) outward. At this time, the gear can be directly moved outward, thereby pushing the sleeve frame (17) and the clamping block (18) outward. The clamping block (18) will enter the clamping groove (21) again. Pull open the baffle (10), remove the polished gear, and replace it with a new gear, and repeat the above steps.

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