Driving device for gear hobbing machine

Abstract

The utility model discloses a driving device for a gear hobbing machine, which relates to the technical field of gear hobbing machine driving equipment and comprises an L-shaped transmission case, a front cover mounted at the front end of the L-shaped transmission case through a bolt, a rear cover mounted at the rear end of the L-shaped transmission case through a bolt, a bearing seat mounted at the inner bottom end of the L-shaped transmission case, and a driving spindle mounted on the bearing seat through a bearing. A servo motor is installed on the outer side of the rear cover, the output end of the servo motor extends into the L-shaped transmission box and is in transmission connection with one end of a driving main shaft through a coupler, the other end of the driving main shaft is connected with a transmission structure, an abutting assembly used in cooperation with the transmission structure is installed in the L-shaped transmission box, and a supporting sleeve is fixed to the outer wall of the front cover. According to the utility model, through the cooperative use of the transmission structure and the abutting assembly, the power of the servo motor can be directly transmitted to the hob rod, the rotation precision of the hob is ensured, the processing effect is ensured, and the practicability is better.

Description

Technical Field

[0001] The utility model relates to the technical field of gear hobbing machine driving equipment, in particular to a gear hobbing machine driving device. Background Art

[0002] Gear hobbing machines are the most widely used type of gear processing machine tools. They can cut spur and helical cylindrical gears, as well as worm wheels, sprockets, etc. They use hobs to process spur, helical and herringbone cylindrical gears and worm wheels according to the generating method. When using special hobs, this type of machine tool can also process workpieces with various special tooth shapes such as splines and sprockets.

[0003] The hob spindle box of a traditional gear hobbing machine generally realizes the linkage between the hob and the worktable through mechanical transmission, bevel gears, spline shafts, worm gears, hanging wheels, etc., which is inconvenient to operate and affects the rotation accuracy. Therefore, a drive device for a gear hobbing machine is provided. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a driving device for a gear hobbing machine. Through the coordinated use of the set transmission structure and the clamping assembly, the power of the servo motor can be directly transmitted to the hob rod, thereby ensuring the rotation accuracy of the hob and the processing effect. It has good practicality and overcomes the deficiencies of the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A drive device for a gear hobbing machine, comprising an L-shaped transmission box, a front cover is installed at the front end of the L-shaped transmission box by bolts, a rear cover is installed at the rear end of the L-shaped transmission box by bolts, a bearing seat is installed at the bottom end of the L-shaped transmission box, a driving spindle is installed on the bearing seat by a bearing, a servo motor is installed on the outer side of the rear cover, an output end of the servo motor extends to the inside of the L-shaped transmission box and is transmission-connected to one end of the driving spindle through a coupling, the other end of the driving spindle is connected to a transmission structure, and a tightening component used in conjunction with the transmission structure is installed inside the L-shaped transmission box;

[0007] A support sleeve is fixed on the outer wall of the front cover, and a hob rod is mounted on the support sleeve via a bearing.

[0008] Through the above scheme, by using the transmission structure and the clamping assembly, the power of the servo motor can be directly transmitted to the hob rod, thereby ensuring the rotation accuracy of the hob, ensuring the processing effect, and having good practicality.

[0009] Preferably, the transmission structure includes a spline shaft installed on the end of the driving main shaft through a flange, the external sliding sleeve of the spline shaft is connected with a sleeve, a disc is fixed to the outer wall of one end of the sleeve, and a first friction disc is installed on the other end of the sleeve through a flange, and the end of the hob rod located inside the L-shaped transmission box is connected to the second friction disc through a flange.

[0010] Preferably, the clamping assembly includes an electric push rod installed above the inner wall of the L-shaped transmission box, one end of the electric push rod is connected to an L-shaped connecting rod, the horizontal end of the L-shaped connecting rod is connected to a U-shaped rod through a flange, and U-shaped seats are installed on opposite sides of the vertical sections of the U-shaped rod through bolts, and the two U-shaped seats are both mounted on the outside of the disc.

[0011] Preferably, the two U-shaped seats are provided with mounting openings on one side facing the driving spindle, and support wheels are installed in the two mounting openings.

[0012] Preferably, a sliding rod is welded to the top of the L-shaped connecting rod, and strip holes are provided on the tops of the two opposite sides of the L-shaped transmission box, and the two ends of the sliding rod are respectively slidably engaged with the two strip holes.

[0013] Preferably, strip grooves are formed on opposite sides of the first friction disc and the second friction disc.

[0014] Preferably, a sealing ring is provided at the connection between the front cover and the L-shaped transmission box, and a sealing ring is provided at the connection between the rear cover and the L-shaped transmission box.

[0015] Preferably, a dust cover is provided on the outside of the servo motor, and the servo motor is connected to the rear cover by bolts.

[0016] The beneficial effects of the utility model are:

[0017] By using the transmission structure and the clamping assembly in coordination, the power of the servo motor can be directly transmitted to the hob rod, thereby ensuring the rotation accuracy of the hob, ensuring the processing effect, and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure from a first perspective of a driving device for a gear hobbing machine proposed by the utility model.

[0019] Figure 2 This is a schematic diagram of the third perspective structure of a driving device for a gear hobbing machine proposed by the utility model.

[0020] Figure 3 The utility model is a partial cross-sectional three-dimensional structural schematic diagram of a driving device for a gear hobbing machine.

[0021] Figure 4 A drive device for a gear hobbing machine proposed in the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0022] In the figure: 1. L-shaped transmission box; 2. front cover; 3. rear cover; 4. sliding rod; 5. servo motor; 6. strip hole; 7. support sleeve; 8. hob rod; 9. second friction disc; 10. first friction disc; 11. sleeve; 12. disc; 13. spline shaft; 14. driving spindle; 15. L-shaped connecting rod; 16. bearing seat; 17. U-shaped seat; 18. mounting port; 19. support wheel; 20. U-shaped rod; 21. electric push rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Example 1, reference Figure 1-4 , a drive device for a gear hobbing machine, comprising an L-shaped transmission box 1, a front cover 2 is installed at the front end of the L-shaped transmission box 1 by bolts, a rear cover 3 is installed at the rear end of the L-shaped transmission box 1 by bolts, a bearing seat 16 is installed at the bottom end of the interior of the L-shaped transmission box 1, a driving spindle 14 is installed on the bearing seat 16 by a bearing, a servo motor 5 is installed on the outside of the rear cover 3, a dust cover is arranged on the outside of the servo motor 5, and the servo motor 5 is connected to the rear cover 3 by bolts, an output end of the servo motor 5 extends to the inside of the L-shaped transmission box 1 and is transmission-connected to one end of the driving spindle 14 through a coupling, the other end of the driving spindle 14 is connected to a transmission structure, and a tightening component used in conjunction with the transmission structure is installed inside the L-shaped transmission box 1;

[0025] A support sleeve 7 is fixed to the outer wall of the front cover 2, and a hob rod 8 is mounted on the support sleeve 7 via a bearing;

[0026] The transmission structure includes a spline shaft 13 mounted on the end of a driving main shaft 14 through a flange, a sleeve 11 is slidably sleeved on the outside of the spline shaft 13, a disc 12 is fixed to the outer wall of one end of the sleeve 11, a first friction disc 10 is mounted on the other end of the sleeve 11 through a flange, and a second friction disc 9 is connected to one end of the hob rod 8 located inside the L-shaped transmission box 1 through a flange;

[0027] The tightening assembly includes an electric push rod 21 installed on the inner wall of the L-shaped transmission box 1, one end of the electric push rod 21 is connected to the L-shaped connecting rod 15, the horizontal end of the L-shaped connecting rod 15 is connected to the U-shaped rod 20 through a flange, and the U-shaped seats 17 are installed on the opposite sides of the vertical sections of the two sides of the U-shaped rod 20 through bolts. The two U-shaped seats 17 are both sleeved on the outside of the disc 12, and the two U-shaped seats 17 are provided with mounting openings 18 on the side facing the driving spindle 14. Support wheels 19 are installed in the two mounting openings 18. The support of the support wheels 19 prevents sliding friction between the disc 12 and the U-shaped seat 17;

[0028] The top of the L-shaped connecting rod 15 is welded with a sliding rod 4, and the tops of the two opposite sides of the L-shaped transmission box 1 are provided with strip holes 6, and the two ends of the sliding rod 4 are respectively slidably engaged with the two strip holes 6 to ensure the stability of the L-shaped connecting rod 15 and improve the structural strength;

[0029] The first friction disc 10 and the second friction disc 9 are provided with strip grooves on opposite sides. The connection between the front cover 2 and the L-shaped transmission case 1 is padded with a sealing ring, and the connection between the rear cover 3 and the L-shaped transmission case 1 is padded with a sealing ring.

[0030] Working principle: The electric push rod 21 is contracted to drive the L-shaped connecting rod 15 to move toward the hob rod 8, so that the L-shaped connecting rod 15 drives the U-shaped rod 20 and the two U-shaped seats 17 to move, and the support wheels 19 on the two U-shaped seats 17 push the disc 12 and drive the sleeve 11 to move toward the hob rod 8, thereby making the first friction disc 10 and the second friction disc 9 tightly abut against each other, and the servo motor 5 is used to directly drive the driving spindle 14 to rotate, so that the driving spindle 14 drives the spline shaft 13 and the sleeve 11 The disc 12, the first friction disc 10, the second friction disc 9 rotate and the hob rod 8 rotates, so that the power of the servo motor 5 is directly transmitted to the hob rod 8, and the rotation accuracy of the hob is ensured. The L-shaped connecting rod 15 is pushed back by the electric push rod 21, and then the disc 12 and the sleeve 11 are pushed away from the hob rod 8 by the U-shaped seat 17, so that the first friction disc 10 and the second friction disc 9 are separated. In case of danger, the power transmitted to the hob rod 8 can be cut off in time, and the safety factor is high.

[0031] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A drive device for a gear hobbing machine, comprising an L-shaped transmission box (1), a front cover (2) being mounted on the front end of the L-shaped transmission box (1) by bolts, and a rear cover (3) being mounted on the rear end of the L-shaped transmission box (1) by bolts, characterized in that: A bearing seat (16) is installed at the bottom end of the L-shaped transmission box (1), a driving spindle (14) is installed on the bearing seat (16) via a bearing, a servo motor (5) is installed on the outer side of the rear cover (3), an output end of the servo motor (5) extends to the inside of the L-shaped transmission box (1) and is transmission-connected to one end of the driving spindle (14) via a coupling, the other end of the driving spindle (14) is connected to a transmission structure, and a tightening assembly used in conjunction with the transmission structure is installed inside the L-shaped transmission box (1); A support sleeve (7) is fixed to the outer wall of the front cover (2), and a hob rod (8) is mounted on the support sleeve (7) via a bearing.

2. A drive device for a gear hobbing machine according to claim 1, characterized in that: The transmission structure comprises a spline shaft (13) mounted on the end of a driving main shaft (14) via a flange, the spline shaft (13) is slidably sleeved with a sleeve (11) on the outside, a disc (12) is fixed to the outer wall of one end of the sleeve (11), a first friction disc (10) is mounted on the other end of the sleeve (11) via a flange, and the end of the hob rod (8) located inside the L-shaped transmission box (1) is connected to a second friction disc (9) via a flange.

3. A drive device for a gear hobbing machine according to claim 2, characterized in that: The tightening assembly comprises an electric push rod (21) installed above the inner wall of the L-shaped transmission box (1), one end of the electric push rod (21) is connected to an L-shaped connecting rod (15), the horizontal end of the L-shaped connecting rod (15) is connected to a U-shaped rod (20) via a flange, and U-shaped seats (17) are installed on opposite sides of the vertical sections of the U-shaped rod (20) via bolts, and the two U-shaped seats (17) are both sleeved on the outside of the disc (12).

4. A drive device for a gear hobbing machine according to claim 3, characterized in that: The two U-shaped seats (17) are each provided with a mounting opening (18) on one side facing the driving main shaft (14), and a supporting wheel (19) is installed in each of the two mounting openings (18).

5. A gear hobbing machine drive device according to claim 3, characterized in that: A sliding rod (4) is welded to the top of the L-shaped connecting rod (15), and strip holes (6) are provided on the tops of the two opposite sides of the L-shaped transmission box (1), and the two ends of the sliding rod (4) are respectively slidably engaged with the two strip holes (6).

6. A drive device for a gear hobbing machine according to claim 2, characterized in that: The first friction disc (10) and the second friction disc (9) are both provided with strip-shaped grooves on opposite sides.

7. A drive device for a gear hobbing machine according to claim 1, characterized in that: A sealing ring is provided at the connection between the front cover (2) and the L-shaped transmission box (1), and a sealing ring is provided at the connection between the rear cover (3) and the L-shaped transmission box (1).

8. The drive device for a gear hobbing machine according to claim 1, characterized in that: A dust cover is provided on the outside of the servo motor (5), and the servo motor (5) is connected to the rear cover (3) via bolts.

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