Fixed-size chamfering device and chamfering method thereof

Abstract

The invention relates to a fixed-size chamfering device and a chamfering method thereof.The chamfering device comprises a driving shaft, an adjusting component, a clamping component and a chamfering device, and the adjusting component and the chamfering device are installed on the driving shaft; the clamping component is installed on the chamfering device and located between the driving shaft and the chamfering device, the adjusting component is used for adjusting the clamping component to clamp or loosen the driving shaft, and a plurality of chamfering tools are arranged at the end of the chamfering device. According to the chamfering device, the clamping component is adjusted to clamp or loosen the driving shaft through the adjusting component, chamfering is automatically stopped after a workpiece is machined to the set size through the chamfering device, the consistency of the chamfering size is guaranteed, the problem that tool setting is needed when the workpiece is machined every time is solved, the machining efficiency of the workpiece is improved, and time and labor are saved.

Description

Technical Field

[0001] The invention relates to the technical field of chamfering, and in particular to a sized chamfering device and a chamfering method thereof. Background Art

[0002] The existing chamfering cutter relies on the machine tool to control the cutting depth of the chamfering cutter to control the chamfer size of the product. In the continuous processing process, if the height of the hole plane that needs to be chamfered is inconsistent due to the previous process of the same type of product, the chamfer size will be different. If you want to ensure the consistency of the chamfer size, you need to calibrate the tool when processing each product, which is time-consuming and labor-intensive, affecting the product processing efficiency. Summary of the invention

[0003] The present invention aims at solving the existing technical problems and provides a sizing chamfering device and a chamfering method thereof.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a fixed-size chamfering device, comprising a driving shaft, an adjusting component, a clamping component and a chamfering machine, the adjusting component and the chamfering machine are installed on the driving shaft, the clamping component is installed on the chamfering machine and the clamping component is located between the driving shaft and the chamfering machine, the adjusting component is used to adjust the clamping component to clamp or release the driving shaft, and a plurality of chamfering knives are provided at the end of the chamfering machine.

[0005] On the basis of the above technical solution, the present invention can also be improved as follows:

[0006] Preferably, the adjusting component includes an elastic reset member, a pressure plate and an adjusting sleeve, the pressure plate is slidably arranged on the driving shaft, a stop platform is provided on the driving shaft, the elastic reset member is located between the stop platform and the pressure plate, the adjusting sleeve is connected to the pressure plate, the adjusting sleeve is located at one end away from the elastic reset member, the adjusting sleeve is arranged on the outside of the chamferer, and when processing the workpiece, the chamfering cutter protrudes from the adjusting sleeve.

[0007] Preferably, a plurality of rollable steel balls are provided at the end of the adjustment sleeve.

[0008] Preferably, the adjustment sleeve is detachably connected to the pressing plate.

[0009] Preferably, the clamping component includes a sealing assembly and an expansion sleeve, the inner side of the expansion sleeve is installed on the drive shaft, and the outer side is fixedly connected to the chamferer, the chamferer is provided with an oil inlet channel, both ends of the oil inlet channel are provided with sealing assemblies, a clamping cavity is formed between the chamferer and the expansion sleeve, and the clamping cavity is connected to the oil inlet channel through an oil channel.

[0010] Preferably, the sealing assembly includes a pressure-bearing column and an oil seal, and the oil seal is located on the inner side of the pressure-bearing column.

[0011] Preferably, a pressure block is detachably mounted on the end of the driving shaft, and a corresponding groove is provided on the chamfering device.

[0012] Preferably, an arc-shaped groove is provided at the end of the adjustment sleeve, the inner diameter of the arc-shaped groove is larger than the outer diameter of the steel ball, and the opening of the arc-shaped groove is interference fit with the steel ball.

[0013] The present invention also discloses a chamfering method, which uses the sized chamfering device as described above, and comprises the following steps:

[0014] The pressure plate of the adjusting component pushes the chamferer to contact the pressure block of the driving shaft, and at the same time, the pressure plate squeezes the clamping component so that the clamping component clamps the driving shaft;

[0015] The chamfering cutter on the chamfering device is in contact with the workpiece, and the driving shaft drives the chamfering device and the chamfering cutter to move forward and rotate to process the workpiece;

[0016] During the process of processing the workpiece by the chamfering tool, the chamfering tool continuously moves toward the workpiece. When the adjusting sleeve or the steel ball contacts the end of the workpiece, the workpiece applies a reverse thrust to the adjusting sleeve. As the chamfering tool continuously moves toward the workpiece, the reverse thrust applied by the workpiece to the adjusting sleeve continuously increases. When the reverse thrust is greater than the elastic force of the elastic reset member, the adjusting sleeve pushes the pressure plate to separate from the clamping component. The clamping component releases the drive shaft, and the chamferer and the chamfering tool no longer rotate synchronously with the drive shaft, thereby completing the fixed-size chamfering of the workpiece.

[0017] The beneficial effects of the present invention are: by adjusting the clamping component to clamp or loosen the driving shaft through the adjusting component, the chamfering device automatically stops chamfering after processing the workpiece to a set size, thereby ensuring the consistency of the chamfering size and solving the problem of tool alignment each time the workpiece is processed, thereby improving the processing efficiency of the workpiece and saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the chamfering device of the present invention;

[0019] Figure 2 A schematic diagram of the chamfering device of the present invention when processing a workpiece;

[0020] Figure 3 It is a schematic diagram of the steel ball of the present invention installed in the arc-shaped groove.

[0021] Figure numerals: 1. driving shaft; 2. elastic reset member; 3. pressure plate; 4. pressure column; 5. oil seal; 6. chamfering device; 7. oil inlet channel; 8. workpiece; 9. steel ball; 10. chamfering knife; 11. adjusting sleeve; 12. expansion sleeve; 13. oil channel; 14. clamping chamber; 15. pressure block; 16. arc groove. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0023] like Figures 1 to 3 As shown, the present invention discloses a fixed-size chamfering device, including a driving shaft 1, an adjusting component, a clamping component and a chamfering machine 6. When in use, the driving shaft 1 is connected to a machine tool. When the machine tool is working, the driving shaft 1 is driven to rotate and move. The adjusting component and the chamfering machine 6 are installed on the driving shaft 1, and the clamping component is installed on the chamfering machine 6 and the clamping component is located between the driving shaft 1 and the chamfering machine 6. The adjusting component is used to adjust the clamping component to clamp or release the driving shaft 1. A plurality of chamfering knives 10 are provided at the end of the chamfering machine 6, and a plurality of chamfering knives 10 are provided circumferentially to improve the chamfering efficiency.

[0024] In this embodiment, specifically, the adjusting component includes an elastic reset member 2, a pressure plate 3 and an adjusting sleeve 11. The elastic reset member 2 is a compression spring. The pressure plate 3 is slidably arranged on the drive shaft 1. A stop platform is provided on the drive shaft 1. The elastic reset member 2 is located between the stop platform and the pressure plate 3. The adjusting sleeve 11 is connected to the pressure plate 3. The adjusting sleeve 11 is located at the end away from the elastic reset member 2. The adjusting sleeve 11 is arranged on the outside of the chamferer 6. When processing the workpiece 8, the chamfering cutter 10 protrudes from the adjusting sleeve 11.

[0025] Furthermore, a plurality of rollable steel balls 9 are provided at the end of the adjustment sleeve 11. The steel balls 9 can reduce the friction between the adjustment sleeve 11 and the workpiece 8, reduce damage to the workpiece 8, and ensure the quality of the workpiece 8. Specifically, an arc-shaped groove 16 is provided at the end of the adjustment sleeve 11, the inner diameter of the arc-shaped groove 16 is larger than the outer diameter of the steel ball 9, and the opening of the arc-shaped groove 16 is interference-fitted with the steel ball 9. The steel ball 9 is pressed into the arc-shaped groove 16 through the opening, and the steel ball 9 can rotate freely in the arc-shaped groove 16, thereby reducing the friction between the adjustment sleeve 11 and the workpiece 8 and ensuring smooth processing.

[0026] Furthermore, the adjusting sleeve 11 is detachably connected to the pressing plate 3. By installing adjusting sleeves 11 of different lengths, chamfers of different sizes can be completed, thereby increasing the scope of use and reducing processing costs.

[0027] Optionally, the end of the adjusting sleeve 11 may be coated with a wear-resistant material, such as a ceramic coating, so as to improve the wear resistance of the adjusting sleeve 11, reduce the friction between the adjusting sleeve 11 and the workpiece 8, and also achieve the effect of sizing processing.

[0028] In this embodiment, the clamping component includes a sealing assembly and an expansion sleeve 12. The inner side of the expansion sleeve 12 is mounted on the drive shaft 1, and the outer side is fixedly connected to the chamfering device 6, such as by welding. The chamfering device 6 has an oil inlet channel 7. In this embodiment, the oil inlet channel 7 is provided with one, and sealing assemblies are provided at both ends of the oil inlet channel 7. A clamping cavity 14 is formed between the inner wall of the chamfering device 6 and the outer wall of the expansion sleeve 12. The clamping cavity 14 is arranged along the circumference of the expansion sleeve 12 to ensure a uniform clamping effect. The clamping cavity 14 is connected to the oil inlet channel 7 through an oil passage 13. Among them, the sealing assembly includes a pressure column 4 and an oil seal 5, and the oil seal 5 is located on the inner side of the pressure column 4. When the chamfering device does not contact the workpiece 8, the elastic reset member 2 pushes the pressure plate 3, and the pressure plate 3 pushes the chamferer 6, so that the right end of the chamferer 6 contacts the drive shaft 1. At the same time, the pressure plate 3 squeezes the pressure column 4, and the pressure column 4 pushes the oil seal 5 to move. Since the oil inlet channel 7 is full of oil, under the pressure of the oil seal 5, the oil in the oil inlet channel 7 flows into the clamping chamber 14 through the oil channel 13, causing the expansion sleeve 12 to undergo elastic deformation, thereby clamping the drive shaft 1. When the drive shaft 1 is fed and rotated, the chamferer 6 and the chamfering cutter 10 are driven to feed and rotate synchronously, thereby chamfering the workpiece 8.

[0029] Furthermore, a pressing block 15 is provided at the end of the driving shaft 1, and a corresponding groove is provided on the chamfering device 6. The pressing block 15 cooperates with the groove to limit the position of the chamfering device 6, thereby ensuring that the workpiece 8 is processed normally.

[0030] The present invention also discloses a sizing chamfering method, which uses the sizing chamfering device as described above, and comprises the following steps:

[0031] The pressure plate 3 of the adjusting component pushes the chamfering device 6 to contact the pressure block 15 of the driving shaft 1, and at the same time, the pressure plate 3 squeezes the clamping component so that the clamping component clamps the driving shaft 1;

[0032] The chamfering cutter 10 on the chamfering device 6 contacts the workpiece 8, and the driving shaft 1 drives the chamfering device 6 and the chamfering cutter 10 to move forward and rotate to process the workpiece 8;

[0033] During the process of the chamfering cutter 10 processing the workpiece 8, the chamfering cutter 10 continuously moves toward the workpiece 8. When the adjusting sleeve 11 or the steel ball 9 contacts the end of the workpiece 8, the workpiece 8 applies a reverse thrust to the adjusting sleeve 11. As the chamfering cutter 10 continuously moves toward the workpiece 8, the reverse thrust applied by the workpiece 8 to the adjusting sleeve 11 continuously increases. When the reverse thrust is greater than the elastic force of the elastic reset member 2, the adjusting sleeve 11 pushes the pressure plate 3 to separate from the clamping component, that is, the pressure plate 3 is separated from the pressure-bearing column 4, and the hydraulic oil in the clamping chamber 14 returns to the oil inlet channel 7 through the oil passage 13. The expansion sleeve 12 releases the drive shaft 1, that is, the clamping component releases the drive shaft 1, and the chamferer 6 and the chamfering cutter 10 no longer rotate synchronously with the drive shaft 1, and the processing of the workpiece 8 is stopped, completing the fixed-size chamfering of the workpiece 8.

[0034] After chamfering is completed, as the machine tool drives the drive shaft 1 to retract, the adjusting sleeve 11 separates from the workpiece 8 and relies on the elastic force of the elastic reset member 2 to return to the state before the chamfering device processed the workpiece 8, thereby completing the fixed-size chamfering of the workpiece 8. The overall operation is simple, which solves the problem of tool alignment required every time the workpiece 8 is processed, and improves the chamfering efficiency of the workpiece 8.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sizing chamfering device, characterized in that: The invention comprises a driving shaft (1), an adjusting component, a clamping component and a chamfering device (6); the adjusting component and the chamfering device (6) are mounted on the driving shaft (1); the clamping component is mounted on the chamfering device (6) and the clamping component is located between the driving shaft (1) and the chamfering device (6); the adjusting component is used to adjust the clamping component to clamp or release the driving shaft (1); and a plurality of chamfering knives (10) are provided at the end of the chamfering device (6).

2. The sizing chamfering device according to claim 1, characterized in that: The adjusting component comprises an elastic reset member (2), a pressure plate (3) and an adjusting sleeve (11); the pressure plate (3) is slidably arranged on the driving shaft (1); a stop platform is arranged on the driving shaft (1); the elastic reset member (2) is located between the stop platform and the pressure plate (3); the adjusting sleeve (11) is connected to the pressure plate (3); the adjusting sleeve (11) is located at an end away from the elastic reset member (2); the adjusting sleeve (11) is arranged on the outer side of the chamfering device (6); when processing a workpiece, the chamfering tool (10) protrudes from the adjusting sleeve (11).

3. The sizing chamfering device according to claim 2, characterized in that: A plurality of rollable steel balls (9) are provided at the end of the adjustment sleeve (11).

4. The sizing chamfering device according to claim 2, characterized in that: The adjustment sleeve (11) is detachably connected to the pressing plate (3).

5. The sizing chamfering device according to claim 1, characterized in that: The clamping component comprises a sealing assembly and an expansion sleeve (12); the inner side of the expansion sleeve (12) is mounted on the drive shaft (1), and the outer side is fixedly connected to the chamfering device (6); an oil inlet channel (7) is provided on the chamfering device (6); sealing assemblies are provided at both ends of the oil inlet channel (7); a clamping cavity (14) is formed between the chamfering device (6) and the expansion sleeve (12); the clamping cavity (14) is connected to the oil inlet channel (7) through an oil passage (13).

6. The sizing chamfering device according to claim 5, characterized in that: The sealing assembly comprises a pressure-bearing column (4) and an oil seal (5), wherein the oil seal (5) is located on the inner side of the pressure-bearing column (4).

7. The sizing chamfering device according to claim 5, characterized in that: A pressing block (15) is detachably mounted on the end of the driving shaft (1), and a corresponding groove is provided on the chamfering device (6).

8. The sizing chamfering device according to claim 3, characterized in that: An arc-shaped groove (16) is provided at the end of the adjustment sleeve (11), the inner diameter of the arc-shaped groove (16) is larger than the outer diameter of the steel ball (9), and the opening of the arc-shaped groove (16) is interference-fitted with the steel ball (9).

9. A chamfering method, characterized in that: The sizing chamfering device according to any one of claims 1 to 8 comprises the following steps: The pressure plate (3) of the adjusting component pushes the chamfering device (6) to contact the pressure block (15) of the driving shaft (1), and at the same time, the pressure plate (3) squeezes the clamping component so that the clamping component clamps the driving shaft (1); The chamfering cutter (10) on the chamfering device (6) contacts the workpiece (8), and the driving shaft (1) drives the chamfering device (6) and the chamfering cutter (10) to move forward and rotate to process the workpiece (8); During the process of the chamfering cutter (10) processing the workpiece (8), the chamfering cutter (10) continuously moves toward the workpiece (8). When the adjusting sleeve (11) or the steel ball (9) contacts the end of the workpiece (8), the workpiece (8) applies a reverse thrust to the adjusting sleeve (11). As the chamfering cutter (10) continuously moves toward the workpiece (8), the reverse thrust applied by the workpiece (8) to the adjusting sleeve (11) continuously increases. When the reverse thrust is greater than the elastic force of the elastic reset member (2), the adjusting sleeve (11) pushes the pressure plate (3) to separate from the clamping component. The clamping component releases the drive shaft (1), and the chamfering device (6) and the chamfering cutter (10) no longer rotate synchronously with the drive shaft (1), thereby completing the fixed-size chamfering of the workpiece (8).

Images