Workpiece spindle structure of a vertical hobbing machine

Abstract

The utility model relates to hobbing machine technical field, concretely is a kind of vertical hobbing machine workpiece main shaft structure, it includes: main body, including hob and cutter bar, the surface of cutter bar is fixedly connected with tool rest, the surface of tool rest is fixedly connected with installation box and hobbing machine body, the surface of installation box is fixedly connected with motor, the surface of tool rest is connected with first mounting block by bolt, the surface of first mounting block is provided with second mounting block.The utility model is by installing storage box on tool rest, and injecting lubricant in storage box, make cutter bar rotation drive movable ball rotation, further realize movable ball and inject the lubricant in storage box through discharge hole and mounting hole and be attached to itself, and under the action of rotation make lubricant be attached to cutter bar, further realize the lubrication of the connecting place of cutter bar and tool rest, make cutter bar rotation more smoothly, simultaneously, lubricant acts on the connecting place of cutter bar and tool rest, to its protection prevents rust damage.

Description

Technical Field

[0001] This utility model relates to the field of gear hobbing machine technology, specifically to a workpiece spindle structure for a vertical gear hobbing machine. Background Technology

[0002] The gear hobbing machine is one of the most widely used gear processing machine tools. It can cut spur gears and helical gears. It is a gear processing machine tool that uses hobs on the spindle to process spur gears, helical gears, herringbone gears and worm gears by generating method.

[0003] In the gear machining process, the spindle needs to be driven by a motor to rotate and thus machine the gear. However, the existing spindle structure needs to rotate for a long time during gear machining, requiring lubrication. If lubrication is not timely, it can easily cause the normal machining operation of the spindle, increasing energy consumption and affecting machining efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a workpiece spindle structure for a vertical gear hobbing machine, in order to solve the problem mentioned in the background art that the spindle structure needs to rotate for a long time during gear processing, requiring lubrication. If lubrication is not timely, it will easily cause the normal processing operation of the spindle to be disrupted, resulting in increased energy consumption and affecting processing efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a workpiece spindle structure for a vertical gear hobbing machine, comprising:

[0006] The main body includes a hob and a cutter bar. A cutter holder is mounted on the surface of the cutter bar. A mounting box and a gear hobbing machine body are fixedly connected to the surface of the cutter holder. A motor is fixedly connected to the surface of the mounting box. A first mounting block is bolted to the surface of the cutter holder. A second mounting block is provided on the surface of the first mounting block.

[0007] The lubrication mechanism includes a storage box fixedly connected to the surface of the tool holder. An injection hole is provided on one side of the storage box, and a discharge hole is provided on the other side. A connecting strap is fixedly connected to the surface of the storage box, and a sealing plug is fixedly connected to the surface of the connecting strap. An installation hole is provided inside the tool holder, and a first rotating groove is provided on the surface of the installation hole. A movable ball is provided on the surface of the installation hole, and a first rotating block is fixedly connected to the surface of the movable ball.

[0008] Preferably, the diameter of the injection hole is smaller than the diameter of the discharge hole, one end of the connecting strip is fixedly connected to the surface of the storage box, and the other end of the connecting strip is fixedly connected to the surface of the sealing plug, and the diameters of the mounting hole and the discharge hole are the same.

[0009] Preferably, there are two sets of the first rotating groove, which are opened on both sides of the mounting hole. The diameter of the first rotating groove is larger than the diameter of the first rotating block. The movable ball is attached to the surface of the tool holder and is rotatably connected to the surface of the mounting hole.

[0010] Preferably, the first rotating block is provided in two sets, and the two sets of the first rotating blocks are fixedly connected to both sides of the movable ball, and the first rotating block is rotatably connected to the surface of the first rotating groove.

[0011] Preferably, the surface of the first mounting block is provided with a splitting mechanism, the splitting mechanism including a connecting block, the connecting block being fixedly connected to the surface of the first mounting block, the surface of the connecting block being fixedly connected to a second rotating block, the surface of the connecting block being provided with a second rotating groove, the surface of the first mounting block being fixedly connected to an mounting chamber, the surface of the second mounting block being fixedly connected to a connecting plate, the surface of the connecting plate being provided with a limit hole, the surface of the mounting chamber being provided with a through hole, the interior of the mounting chamber being provided with a support spring and a limit plate, the surface of the limit plate being fixedly connected to a limit block.

[0012] Preferably, the connecting block is provided in three sets, two sets of the connecting blocks are fixedly connected to the surface of the first mounting block, the other set of the connecting blocks are fixedly connected to the surface of the second mounting block, the second rotating block is rotatably connected to the surface of the second rotating groove, and the diameter of the limiting hole is the same as the diameter of the through hole.

[0013] Preferably, one end of the support spring is fixedly connected to the inner surface of the installation chamber, the other end of the support spring is fixedly connected to the surface of the limiting plate, the limiting plate is abutting against the inner surface of the installation chamber, and the limiting block is engaged with the surface of the limiting hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By installing a storage box on the tool holder and injecting lubricant into the storage box, the rotation of the tool holder drives the rotation of the movable ball. This allows the movable ball to adhere the lubricant injected from the storage box to its surface through the discharge hole and mounting hole. Under the action of rotation, the lubricant adheres to the surface of the tool holder, thereby achieving a lubricating effect at the connection between the tool holder and the tool holder, making the rotation of the tool holder smoother. At the same time, the lubricant acts on the connection between the tool holder and the tool holder, protecting it from rust and damage.

[0016] 2. By splitting the mounting block into a first mounting block and a second mounting block, the second mounting block rotates around the second rotating block. When replacing the hob connected to the mounting cutter bar, it is no longer necessary to remove the entire mounting block with bolts. Simply open the second mounting block, place the cutter bar on the surface of the first mounting block, and then, under the action of the support spring, the support spring provides support force to the limiting plate, so that the surface of the limiting block and the limiting hole engages, thereby fixing the first mounting block and the second mounting block, thus making the replacement and installation of the hob more convenient and quick. Attached Figure Description

[0017] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0018] Figure 2 This is a left-side perspective three-dimensional schematic diagram of the structure of this utility model;

[0019] Figure 3 This is a partial three-dimensional sectional view of the structure of the storage box of this utility model;

[0020] Figure 4 This is a partial three-dimensional sectional view of the connecting block of this utility model;

[0021] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A;

[0022] Figure 6 This utility model Figure 4 A magnified structural diagram at point B in the middle.

[0023] In the diagram: 1. Hob; 11. Tool holder; 12. Tool post; 13. Mounting box; 14. Motor; 15. First mounting block; 16. Second mounting block; 17. Gear hobbing machine body; 2. Storage box; 21. Injection hole; 22. Discharge hole; 23. Connecting belt; 24. Sealing plug; 25. Mounting hole; 26. First rotating groove; 27. Movable ball; 28. First rotating block; 3. Connecting block; 31. Second rotating block; 32. Second rotating groove; 33. Mounting chamber; 34. Connecting plate; 35. Limiting hole; 36. Through hole; 37. Support spring; 38. Limiting plate; 39. Limiting block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 One embodiment provided by this utility model:

[0026] A workpiece spindle structure for a vertical gear hobbing machine, comprising:

[0027] The main body includes a hob 1 and a cutter bar 11. A cutter holder 12 is mounted on the surface of the cutter bar 11. A mounting box 13 and a gear hobbing machine body 17 are fixedly connected to the surface of the cutter holder 12. A motor 14 is fixedly connected to the surface of the mounting box 13. A first mounting block 15 is bolted to the surface of the cutter holder 12. A second mounting block 16 is provided on the surface of the first mounting block 15. Under the action of the motor 14, the instrument installed inside the mounting box 13 can drive the cutter bar 11 mounted on the cutter holder 12 to rotate, thereby driving the rotation of the hob 1 to perform gear operation. The hob 1 and the cutter bar 11 are the main shaft structure of the gear hobbing machine. The first mounting block 15 and the second mounting block 16 are mounted on the surface of the cutter holder 12 by bolts, and the cutter bar 11 passes through the surfaces of the first mounting block 15 and the second mounting block 16.

[0028] The lubrication mechanism includes a storage box 2, which is fixedly connected to the surface of the tool holder 12. An injection hole 21 is provided on one side of the storage box 2, and a discharge hole 22 is provided on the other side. A connecting strap 23 is fixedly connected to the surface of the storage box 2, and a sealing plug 24 is fixedly connected to the surface of the connecting strap 23. An installation hole 25 is provided inside the tool holder 12, and a first rotating groove 26 is provided on the surface of the installation hole 25. A movable ball 27 is provided on the surface of the installation hole 25, and a first rotating block 28 is fixedly connected to the surface of the movable ball 27. Under the action of the storage box 2, lubricant can be stored in the storage box 2, making the rotation of the tool bar 11 on the surface of the tool holder 12 smoother. It also serves to maintain the connection between the tool bar 11 and the tool holder 12, preventing rust from long-term use and thus ensuring the machine can operate normally.

[0029] Furthermore, the diameter of the injection hole 21 is smaller than the diameter of the discharge hole 22. One end of the connecting band 23 is fixedly connected to the surface of the storage box 2, and the other end of the connecting band 23 is fixedly connected to the surface of the sealing plug 24. The mounting hole 25 and the discharge hole 22 have the same diameter. The sealing plug 24 consists of two parts. One part of the sealing plug 24 has the same diameter as the injection hole 21, and the other part of the sealing plug 24 is connected to the connecting band 23 and has a diameter larger than the diameter of the injection hole 21. The lubricant is injected into the storage box 2 through the injection hole 21.

[0030] Furthermore, two sets of first rotating grooves 26 are provided, and the two sets of first rotating grooves 26 are opened on both sides of the mounting hole 25. The diameter of the first rotating groove 26 is larger than the diameter of the first rotating block 28. The movable ball 27 is attached to the surface of the tool holder 11 and is rotatably connected to the surface of the mounting hole 25. Under the connection between the mounting hole 25 and the movable ball 27, the lubricant enters the surface of the mounting hole 25 through the discharge hole 22, and then the lubricant is attached to the surface of the movable ball 27.

[0031] Furthermore, two sets of first rotating blocks 28 are provided. The two sets of first rotating blocks 28 are fixedly connected to both sides of the movable ball 27. The first rotating blocks 28 are rotatably connected to the surface of the first rotating groove 26. Under the connection between the first rotating blocks 28 and the first rotating groove 26, the movable ball 27 is driven to rotate during the rotation of the tool bar 11, so that the movable ball 27 applies the lubricant on its surface to the tool bar 11 by rotating around the first rotating block 28.

[0032] Furthermore, the surface of the first mounting block 15 is provided with a splitting mechanism, which includes a connecting block 3. The connecting block 3 is fixedly connected to the surface of the first mounting block 15. The surface of the connecting block 3 is fixedly connected to a second rotating block 31. The surface of the connecting block 3 is provided with a second rotating groove 32. The surface of the first mounting block 15 is fixedly connected to a mounting chamber 33. The surface of the second mounting block 16 is fixedly connected to a connecting plate 34. The surface of the connecting plate 34 is provided with a limiting hole 35. The surface of the mounting chamber 33 is provided with a through hole 36. The interior of the mounting chamber 33 is provided with a support spring 37 and a limiting plate 38. The surface of the limiting plate 38 is fixedly connected to a limiting block 39. By splitting the mounting block, it is not necessary to repeatedly remove the bolts and disassemble the mounting block when installing or replacing the hob 1.

[0033] Furthermore, the connecting block 3 is provided in three sets. Two sets of connecting blocks 3 are fixedly connected to the surface of the first mounting block 15, and the other set of connecting blocks 3 is fixedly connected to the surface of the second mounting block 16. The second rotating block 31 is rotatably connected to the surface of the second rotating groove 32. The diameter of the limiting hole 35 is the same as the diameter of the through hole 36. The two sets of connecting blocks 3 fixed on the first mounting block 15 are arranged on both sides of the connecting block 3 fixed on the second mounting block 16. Under the connection action of the second rotating block 31 and the second rotating groove 32, the second mounting block 16 can rotate around the second rotating block 31 as the center.

[0034] Furthermore, one end of the support spring 37 is fixedly connected to the inner surface of the mounting chamber 33, and the other end of the support spring 37 is fixedly connected to the surface of the limiting plate 38. The limiting plate 38 is abutted against the inner surface of the mounting chamber 33, and the limiting block 39 is engaged with the surface of the limiting hole 35. Two sets of support springs 37 are provided and are arranged on both sides of the limiting plate 38. Under the action of the support spring 37, a supporting force is provided on the limiting plate 38, so that the limiting block 39 passes through the through hole 36 and the limiting hole 35 opened on the connecting plate 34 to engage, thereby fixing the first mounting block 15 and the second mounting block 16 together.

[0035] Working principle: Before the main shaft structure of the gear hobbing machine starts working, lubricant is injected into the storage box 2 through the injection hole 21. After injection, the sealing plug 24 connected to the connecting belt 23 is inserted into the surface of the injection hole 21. At this time, the machine is started, causing the tool bar 11 and hob 1 to rotate. While rotating, the movable ball 27 rotates, causing the movable ball 27 to rotate around the first rotating block 28 on the surface of the mounting hole 25. The lubricant enters the mounting hole 25 through the discharge hole 22. While rotating, the movable ball 27 attaches the lubricant to the surface of the tool bar 11 to complete the lubrication and protection of the connection between the tool bar 11 and the tool holder 12.

[0036] When reinforcing the other end of the tool holder 11 connected to the tool post 12, the tool holder 11 is first attached to the surface of the first mounting block 15. At this time, the second mounting block 16 is rotated around the second rotating block 31 towards the surface of the tool holder 11. At the same time, the limiting block 39 is pressed against the inner surface of the mounting chamber 33. The limiting plate 38 slides along the inner surface of the mounting chamber 33, the support spring 37 is compressed, and the limiting block 39 is placed in the mounting chamber 33 through the through hole 36. When the first mounting block 15 is attached to the surface of the tool holder 11, the support spring 37 provides support force on the surface of the limiting plate 38, so that the limiting plate 38 pushes the limiting block 39 and the limiting hole 35 to engage, thereby completing the fixed installation of the tool holder 11.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A workpiece spindle structure for a vertical gear hobbing machine, characterized in that, include: The main body includes a hob (1) and a cutter bar (11). A cutter holder (12) is mounted on the surface of the cutter bar (11). A mounting box (13) and a hobbing machine body (17) are fixedly connected to the surface of the cutter holder (12). A motor (14) is fixedly connected to the surface of the mounting box (13). A first mounting block (15) is bolted to the surface of the cutter holder (12). A second mounting block (16) is provided on the surface of the first mounting block (15). The lubrication mechanism includes a storage box (2), which is fixedly connected to the surface of the tool holder (12). An injection hole (21) is provided on one side of the storage box (2), and a discharge hole (22) is provided on the other side of the storage box (2). A connecting strip (23) is fixedly connected to the surface of the storage box (2), and a sealing plug (24) is fixedly connected to the surface of the connecting strip (23). An installation hole (25) is provided inside the tool holder (12), and a first rotating groove (26) is provided on the surface of the installation hole (25). A movable ball (27) is provided on the surface of the installation hole (25), and a first rotating block (28) is fixedly connected to the surface of the movable ball (27).

2. The workpiece spindle structure of a vertical gear hobbing machine according to claim 1, characterized in that: The diameter of the injection hole (21) is smaller than the diameter of the discharge hole (22). One end of the connecting band (23) is fixedly connected to the surface of the storage box (2), and the other end of the connecting band (23) is fixedly connected to the surface of the sealing plug (24). The diameters of the mounting hole (25) and the discharge hole (22) are the same.

3. The workpiece spindle structure of a vertical gear hobbing machine according to claim 1, characterized in that: The first rotating groove (26) is provided in two sets. The two sets of the first rotating groove (26) are opened on both sides of the mounting hole (25). The diameter of the first rotating groove (26) is larger than the diameter of the first rotating block (28). The movable ball (27) is attached to the surface of the tool bar (11). The movable ball (27) is rotatably connected to the surface of the mounting hole (25).

4. The workpiece spindle structure of a vertical gear hobbing machine according to claim 1, characterized in that: The first rotating block (28) is provided in two sets. The two sets of the first rotating block (28) are fixedly connected to both sides of the movable ball (27). The first rotating block (28) is rotatably connected to the surface of the first rotating groove (26).

5. The workpiece spindle structure of a vertical gear hobbing machine according to claim 1, characterized in that: The surface of the first mounting block (15) is provided with a splitting mechanism, the splitting mechanism includes a connecting block (3), the connecting block (3) is fixedly connected to the surface of the first mounting block (15), the surface of the connecting block (3) is fixedly connected with a second rotating block (31), the surface of the connecting block (3) is provided with a second rotating groove (32), the surface of the first mounting block (15) is fixedly connected with an mounting chamber (33), the surface of the second mounting block (16) is fixedly connected with a connecting plate (34), the surface of the connecting plate (34) is provided with a limiting hole (35), the surface of the mounting chamber (33) is provided with a through hole (36), the interior of the mounting chamber (33) is provided with a support spring (37) and a limiting plate (38), the surface of the limiting plate (38) is fixedly connected with a limiting block (39).

6. The workpiece spindle structure of a vertical gear hobbing machine according to claim 5, characterized in that: The connecting block (3) is provided in three sets. Two sets of the connecting blocks (3) are fixedly connected to the surface of the first mounting block (15), and the other set of the connecting blocks (3) is fixedly connected to the surface of the second mounting block (16). The second rotating block (31) is rotatably connected to the surface of the second rotating groove (32). The diameter of the limiting hole (35) is the same as the diameter of the through hole (36).

7. The workpiece spindle structure of a vertical gear hobbing machine according to claim 5, characterized in that: One end of the support spring (37) is fixedly connected to the inner surface of the mounting chamber (33), and the other end of the support spring (37) is fixedly connected to the surface of the limiting plate (38). The limiting plate (38) is abutted against the inner surface of the mounting chamber (33), and the limiting block (39) is engaged with the surface of the limiting hole (35).

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