Gear inner hole grinding device

Abstract

The utility model discloses a gear inner hole grinding machining device, relates to the technical field of gear inner hole machining, and aims to solve the problems that in the prior art, when a gear is clamped, an inner hole of the gear to be machined cannot be aligned to the center of a grinding head due to the fact that a clamping device does not have a calibration function; the gear inner hole roundness grinding device comprises a supporting table in a shape like a Chinese character'fang ', a clamping platform arranged in the supporting table in a sliding mode and a containing platform arranged below the clamping platform. A calibration mechanism for aligning a center hole to a grinding head during gear machining is arranged below the placing platform; through the arrangement of the calibration mechanism, when the gear is clamped, the inner hole of the gear is aligned to the center of the grinding head by utilizing the positioning column, so that the problem that the roundness of the inner hole of the gear is damaged by the grinding head due to the fact that the inner hole of the gear deviates from the center line of the grinding head is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear inner hole machining, in particular to a gear inner hole grinding device. Background Technique

[0002] A gear refers to a mechanical element with teeth on the rim that continuously mesh to transmit motion and power. The application of gears in transmission appeared very early. At the end of the 19th century, the principle of generating gear cutting method and the successive emergence of special machine tools and tools for gear cutting using this principle. With the development of production, the smooth operation of gears has been taken seriously, and gear inner hole grinding is a job of grinding the holes inside the gears.

[0003] The existing patent number CN 218341665 U, with the name of an agricultural machinery gear inner hole grinding device, drives the installation shaft to rotate through a driving motor. The installation shaft synchronously drives the driving gear and the rotating lead screw to rotate. Under the action of the rotating lead screw, the threaded cylinder drives the pressing plate to longitudinally move along the guiding chute inside the installation frame, so as to be able to fixedly clamp the gear to be processed on the support plate, thus being able to play a fixing role for the gear to be processed, and further being beneficial to grinding the inner hole of the gear.

[0004] However, it is found in actual use of this patent that when clamping the gear, due to the lack of calibration function of the clamping device, the inner hole of the gear to be processed cannot be aligned with the center of the grinding head, resulting in the problem of grinding damage to the roundness of the gear inner hole caused by the deviation of the gear inner hole from the center line of the grinding head. Content of the Utility Model

[0005] In order to solve the above technical problems, a gear inner hole grinding device is provided, which solves the problem of grinding damage to the roundness of the inner hole of the gear caused by the deviation of the inner hole of the gear to be processed from the center line of the grinding head due to the lack of calibration function of the clamping device in the prior art.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a gear inner hole grinding device, including a support table in a U shape, a clamping platform slidably arranged inside the support table, and a placement platform arranged below the clamping platform. One side of the placement platform is fixed to the support table. Through holes are opened on both the clamping platform and the placement platform, and the two through holes correspond to each other. A first motor is installed on one side of the top surface of the support table. The output shaft of the first motor rotates through the support table and is fixed with a screw rod. The screw rod sequentially penetrates through the clamping platform and the placement platform and is rotatably connected to the support table. A threaded sleeve is sleeved on the screw rod. The threaded sleeve is fixed on the top surface of the clamping platform. It is characterized in that: a processing mechanism for grinding the inner hole of the gear is arranged on one side of the screw rod, and a calibration mechanism for aligning the center hole of the gear processing with the grinding head is arranged below the placement platform;

[0007] The processing mechanism includes a second motor installed on the other side of the top surface of the support platform, the output shaft of the second motor rotates and penetrates into the support platform and is fixed with a reciprocating screw, the reciprocating screw rod is threadedly sleeved with a reciprocating screw sleeve, and a grinding head is fixed at the bottom end of the reciprocating screw sleeve, and the grinding head corresponds to the through hole above;

[0008] The calibration mechanism includes a moving rod threadedly sleeved on the screw rod body, one end of the moving rod is slidably connected to the inner side surface of the support platform, and a positioning column is fixed to the top surface of the rod body at the other end of the moving rod, and the positioning column corresponds to the lower through hole. A collection component for collecting debris is slidably arranged between the positioning column and the placement platform.

[0009] Preferably, the collecting component comprises a storage tray slidably disposed on the bottom surface of the placing platform, one side of the storage tray is open, and the open side of the storage tray corresponds to the through hole below.

[0010] Preferably, the collecting component also includes a follower gear fastened on the screw rod, a rack is meshed on one side of the follower gear, one end of the rack slides through the support platform and is fixed with a limiting block, the other end of the rack is fixed with a support block by bolts, and the support block is fixedly connected to the storage tray.

[0011] Preferably, a bracket is sleeved on the second output shaft of the motor, the bracket is L-shaped and one end is fixed to the support platform, and columns fixed to the bottom surface of the bracket are respectively arranged on both sides of the reciprocating screw, and the bottom end of the column slides through the reciprocating screw sleeve.

[0012] Compared with the prior art, the advantages of the utility model are:

[0013] (1) Through the setting of the calibration mechanism, when it is necessary to grind the inner hole of the gear, the inner hole of the gear can be placed on the placement platform, the inner hole of the gear can be aligned with the positioning column and inserted, and then the motor is started to rotate forward, driving the positioning column to descend and disengage from the inner hole of the gear and the through hole below. In this way, when the gear is clamped, the positioning column can be used to align the inner hole of the gear with the center of the grinding head, thereby preventing the problem of damage to the roundness of the inner hole of the gear caused by the inner hole of the gear deviating from the center line of the grinding head.

[0014] (2) After setting up the collection components, after the positioning post calibrates the center hole of the gear, start the first motor to rotate forward, driving the rotation of the screw rod, causing the positioning post to descend. During this process, the follower gear is driven by the screw rod to rotate synchronously, and drives the rack to move towards the receiving tray through meshing, while driving the receiving tray and the limiting block to move synchronously. When the positioning post descends to a certain position, the receiving tray just moves to between the positioning post and the through hole of the placement platform. In this way, when the grinding head grinds the center of the inner hole of the gear, the generated debris falls through the lower through hole and is received by the receiving tray, thus solving the problem that the surface of the positioning post is adhered by the debris ground from the inner hole of the gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 is a structural schematic diagram of the collection components of the present invention;

[0017] Figure 3 is of the present invention Figure 2 is an enlarged schematic diagram at A in the figure.

[0018] The reference numerals in the figure are:

[0019] 1. Support platform; 2. Clamping platform; 3. Placement platform; 4. First motor; 5. Second motor; 6. Screw rod; 7. Screw sleeve; 8. Bracket; 9. Reciprocating screw sleeve; 10. Column; 11. Grinding head; 12. Positioning post; 13. Moving rod; 14. Receiving tray; 15. Rack; 16. Limiting block; 17. Follower gear; 18. Reciprocating screw rod; 19. Support block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0021] Referring to Figures 1 to 3 as shown, a gear inner hole grinding and processing device includes a U-shaped support platform 1, a clamping platform 2 slidably arranged in the support platform 1, and a placement platform 3 arranged below the clamping platform 2. One side of the placement platform 3 is fixed to the support platform 1. Through holes are provided on both the clamping platform 2 and the placement platform 3, and the two through holes correspond to each other. A first motor 4 is installed on one side of the top surface of the support platform 1. The output shaft of the first motor 4 rotates through the support platform 1 and is fixed with a screw rod 6. The screw rod 6 sequentially penetrates through the clamping platform 2 and the placement platform 3 and is rotatably connected to the support platform 1. A screw sleeve 7 is threadedly sleeved on the screw rod 6, and the screw sleeve 7 is fixed on the top surface of the clamping platform 2. A processing mechanism for grinding the inner hole of the gear is arranged on one side of the screw rod 6.

[0022] The processing mechanism includes a motor 2 5 installed on the other side of the top surface of the support platform 1, the output shaft of the motor 2 5 rotates and penetrates into the support platform 1 and is fixed with a reciprocating screw 18, the reciprocating screw 18 is threadedly sleeved with a reciprocating screw sleeve 9, and a grinding head 11 is fixed at the bottom end of the reciprocating screw sleeve 9, and the grinding head 11 corresponds to the upper through hole;

[0023] A bracket 8 is sleeved on the output shaft of the motor 2 5. The bracket 8 is L-shaped and one end is fixed on the support platform 1. Columns 10 fixed to the bottom surface of the bracket 8 are respectively arranged on both sides of the reciprocating screw 18. The columns 10 slide through the reciprocating screw sleeve 9;

[0024] Through the setting of the processing mechanism, when it is necessary to grind the inner hole of the gear, the gear can be placed on the top surface of the placement platform 3 first, and the motor 4 is started to rotate forward. The output shaft of the motor 4 is used to drive the screw 6 to rotate. In this process, the screw 6 drives the screw sleeve 7 and the clamping platform 2 to rotate, but is restricted by the support platform 1, causing the clamping platform 2 to move downward along the screw 6 until it is against the gear on the placement platform 3, and then clamps the gear on the placement platform 3, and then turns off the motor 4, starts the motor 2 5 and drives the reciprocating screw 18 to rotate through the output shaft of the motor 2 5. In this process, the reciprocating screw 18 drives the reciprocating screw sleeve 9 but is restricted by the column 10, causing the reciprocating screw sleeve 9 to move axially along the reciprocating screw 18, and drives the grinding head 11 to reciprocate through the through holes of the clamping platform 2 and the placement platform 3, and grinds the inner hole of the gear between the clamping platform 2 and the placement platform 3.

[0025] However, in reality, when the gear is clamped by the placing platform 3 and the clamping platform 2, there is no calibration device to align the center hole of the gear with the center of the moving rod 13, and accurate calibration cannot be done by human eyes alone. As a result, when the moving rod 13 grinds the inner hole of the gear, the grinding head damages the roundness of the inner hole of the processed gear.

[0026] To solve the above problems, refer to Figures 1 to 3 As shown, it is worth noting that a calibration mechanism for aligning the center hole of the gear with the grinding head 11 is provided below the placement platform 3 .

[0027] The calibration mechanism includes a moving rod 13 threadedly sleeved on the rod body of the screw rod 6, one end of the moving rod 13 is slidably connected to the inner side surface of the support platform 1, and a positioning column 12 is fixed to the top surface of the rod body at the other end of the moving rod 13, and the positioning column 12 corresponds to the lower through hole;

[0028] By setting the calibration mechanism, when it is necessary to grind the inner hole of the gear, the inner hole of the gear can be placed on the placement platform 3, the inner hole of the gear is aligned with the positioning column 12 and inserted, and then the motor 14 is started to rotate forward. In the process of the clamping platform 2 descending to clamp the gear on the placement platform 3, the moving rod 13 is driven by the screw 6, but the moving rod 13 is restricted by the side wall of the support platform 1 and extends the screw 6 to make a downward movement, and drives the positioning column 12 to descend and disengage from the inner hole of the gear and the lower through hole. At this time, the clamping platform 2 just clamps the gear on the placement platform 3, and then the motor 25 is started, so that the grinding head 11 can not touch the positioning column 12 when grinding the inner hole of the gear. After the grinding is completed, the motor 14 is started to reverse, drive the clamping platform 2 and the positioning column 12 to rise, and after the gear is taken away, the positioning column 12 is re-passed through the lower through hole for the next gear processing positioning. In this way, the problem of using the positioning column 12 to align the inner hole of the gear with the center of the grinding head when the gear is clamped can be solved, so as to prevent the occurrence of the problem of the grinding head damaging the roundness of the inner hole of the gear due to the deviation of the inner hole of the gear from the center line of the grinding head.

[0029] After using it for a period of time, it was found that the debris generated by the moving rod 13 when grinding the gear fell onto the storage tray 14 through the through hole of the clamping platform 2, causing a lot of debris to stick to the surface of the storage tray 14, which in turn increased the cross-sectional area of ​​the storage tray 14, and then when the center hole of the gear was placed on the storage tray 14, it would get stuck.

[0030] In view of this, in order to solve the above problems, refer to, Figures 1 to 3 As shown, it is worth noting that a collecting component for collecting debris is slidably provided between the positioning column 12 and the placement platform 3 .

[0031] The collecting component includes a storage tray 14 slidably disposed on the bottom surface of the placement platform 3, one side of the storage tray 14 is open, and the open side of the storage tray 14 corresponds to the through hole below;

[0032] The collecting component also includes a follower gear 17 that is tightly sleeved on the rod body of the screw rod 6. A rack 15 is meshed on one side of the follower gear 17. One end of the rack 15 slides through the support platform 1 and is fixed with a limiting block 16. The other end of the rack 15 is fixed with a support block 19 by bolts. The support block 19 is fixedly connected to the storage tray 14.

[0033] By setting the collecting component, after the positioning column 12 calibrates the gear center hole, the motor 4 is started to rotate forward to drive the screw 6 to rotate, causing the positioning column 12 to descend. In this process, the follower gear 17 is driven by the screw 6 to rotate synchronously, and drives the rack 15 to move toward the direction of the storage tray 14 through meshing, and at the same time drives the storage tray 14 and the limit block 16 to move synchronously. When the positioning column 12 descends to a certain position, the storage tray 14 just moves to between the positioning column 12 and the through hole of the placement platform 3. At the same time, the limit block 16 abuts against the outer wall of the support platform 1, resulting in the storage tray 14 and the rack 15 cannot continue to move, and then the motor 4 is turned off. In this way, when the grinding head 11 grinds the center of the inner hole of the gear, the debris generated falls through the through hole below and is moved to the storage tray 14 between the positioning column 12 and the placement platform 3 to receive it, thereby solving the problem of the surface of the positioning column 12 being stuck to the debris ground by the inner hole of the gear.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A gear inner hole grinding device, comprising a support table (1) in a U-shaped shape, a clamping platform (2) slidably arranged in the support table (1), and a placement platform (3) arranged below the clamping platform (2). One side of the placement platform (3) is fixed to the support table (1). Through holes are formed in both the clamping platform (2) and the placement platform (3), and the two through holes correspond to each other. A first motor (4) is installed on one side of the top surface of the support table (1). The output shaft of the first motor (4) rotates and penetrates into the support table (1) and is fixed with a screw rod (6). The screw rod (6) sequentially penetrates through the clamping platform (2) and the placement platform (3) and is rotatably connected to the support table (1). A screw sleeve (7) is threadedly sleeved on the screw rod (6). The screw sleeve (7) is fixed to the top surface of the clamping platform (2). It is characterized in that: A processing mechanism for grinding the inner hole of the gear is disposed on one side of the screw rod (6), and a calibration mechanism for aligning the center hole of the gear with the grinding head (11) is disposed below the placement platform (3); The processing mechanism comprises a second motor (5) installed on the other side of the top surface of the support platform (1), the output shaft of the second motor (5) rotates and penetrates into the support platform (1) and is fixed with a reciprocating screw (18), the shaft of the reciprocating screw (18) is threadedly sleeved with a reciprocating screw sleeve (9), a grinding head (11) is fixed at the bottom end of the reciprocating screw sleeve (9), and the grinding head (11) corresponds to the through hole above; The calibration mechanism comprises a moving rod (13) threadedly sleeved on the rod body of the screw rod (6), one end of the moving rod (13) being slidably connected to the inner side surface of the support platform (1), a positioning column (12) being fixed to the top surface of the rod body at the other end of the moving rod (13), the positioning column (12) corresponding to the through hole below, and a collecting component for collecting debris being slidably arranged between the positioning column (12) and the placement platform (3).

2. A gear inner hole grinding device according to claim 1, characterized in that: The collecting component comprises a storage tray (14) slidably arranged on the bottom surface of the placement platform (3); one side of the storage tray (14) is open, and the open side of the storage tray (14) corresponds to the through hole below.

3. A gear inner hole grinding device according to claim 2, characterized in that: The collecting component also includes a follower gear (17) which is tightly sleeved on the rod body of the screw rod (6); a rack (15) is meshed on one side of the follower gear (17); one end of the rack (15) slides through the support platform (1) and is fixed with a limit block (16); the other end of the rack (15) is fixed with a support block (19) by bolts; and the support block (19) is fixedly connected to the storage tray (14).

4. The gear inner hole grinding device according to claim 1, characterized in that: A bracket (8) is sleeved on the output shaft of the second motor (5), the bracket (8) is L-shaped and one end of which is fixed on the support platform (1), and columns (10) fixed to the bottom surface of the bracket (8) are respectively arranged on both sides of the reciprocating screw (18), and the bottom end of the column (10) slides through the reciprocating screw sleeve (9).

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