Hobbing rectification upper center shaft assembly

Abstract

The utility model relates to the technical field of hobbing manufacturing, in particular to a hobbing deviation rectifying upper center shaft assembly which comprises a center shaft, the center shaft is connected with a dustproof ring through a dustproof ring bolt, the center shaft is connected with a connecting disc through a connecting disc bolt, the connecting disc is located in the dustproof ring, and the inner wall of a kidney-shaped groove is movably connected with the lower end of the outer wall of the connecting disc bolt. The outer wall of the bottom of the center shaft is sleeved with a cross joint, the edge of the top of the connecting disc is provided with a spring groove, the bottom of the inner wall of the spring groove is fixedly connected with a spring, the top of the spring is attached to the bottom of the outer wall of the center shaft, and a connecting disc gasket is arranged in the connecting disc and connected with the center shaft through a gasket bolt. The outer wall of the lower end of the connecting disc is sleeved with a gland which is connected with the connecting disc through a gland bolt. The center shaft, the gland and the cross joint can be quickly replaced according to requirements, different machining requirements are met, the machining quality is improved, the applicability is high, and the process is simple.

Description

Technical Field

[0001] The utility model relates to the field of gear hobbing manufacturing, in particular to a gear hobbing deviation correction upper center shaft assembly. Background Art

[0002] The top spindle is a machine tool component in mechanical processing, with small outer diameter, less interference cutter, suitable for high speed, moderate cutting, etc. The top spindle is divided into two types: fixed top and movable top. The fixed top can support parts with complex end faces and parts that do not allow center holes, while the movable top can be regularly oiled to extend its service life.

[0003] Different workpieces have different specifications and models. When performing gear hobbing, due to slight deviations in the processing, in conventional technology, an upper center spindle assembly can only be used for a specific workpiece and cannot meet the use requirements of special workpieces, which limits the use scope of the entire upper center spindle assembly. After the processing is completed, the entire upper center spindle assembly needs to be removed and reinstalled when used next time, which is cumbersome. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a gear hobbing deviation correction upper center shaft assembly.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a gear hobbing correction upper top shaft assembly, including a top shaft, the top shaft is connected with a dust ring through a dust ring bolt, the top shaft is connected with a connecting plate through a connecting plate bolt, the connecting plate is located inside the dust ring, a waist-shaped groove is provided at the bottom of the outer wall of the connecting plate, the bottom of the connecting plate bolt is located inside the waist-shaped groove, an anti-rotation screw hole is provided at the bottom of the outer wall edge of the connecting plate, and there are multiple anti-rotation screw holes, the inner wall of the waist-shaped groove is movably connected to the lower end of the outer wall of the connecting plate bolt, and the top The bottom outer wall of the shaft is sleeved with a cross-shaped member, and the cross-shaped member is located in the interlayer between the bottom of the top shaft and the top of the connecting disk. The top edge of the connecting disk is provided with a spring groove, and there are multiple spring grooves, and two adjacent spring grooves form an angle of degrees. The bottom of the inner walls of the multiple spring grooves are fixedly connected with springs, and the top of the spring fits with the bottom of the outer wall of the top shaft. A connecting disk gasket is arranged inside the connecting disk, and the connecting disk gasket is connected to the top shaft through a gasket bolt. The lower end outer wall of the connecting disk is sleeved with a pressure cover, and the pressure cover is connected to the connecting disk through a pressure cover bolt.

[0006] As a further description of the above technical solution:

[0007] The top outer wall of the connecting plate bolt is threadedly connected to the top shaft, and the lower end outer wall of the connecting plate bolt is movably connected to the inner wall of the waist-shaped groove.

[0008] As a further description of the above technical solution:

[0009] The inner wall of the cross-shaped part is provided with a cross-shaped sealing groove, and a cross-shaped sealing ring is installed inside the cross-shaped sealing groove.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the connecting disk is provided with a connecting disk sealing groove, and a connecting disk sealing ring is installed inside the connecting disk sealing groove.

[0012] As a further description of the above technical solution:

[0013] The top shaft includes a first top shaft and a second top shaft, the cross head includes a cross washer and a full-contact washer, and the pressure cover includes a first pressure cover and a second pressure cover.

[0014] As a further description of the above technical solution:

[0015] The first top shaft and the second top shaft can both be connected to the dustproof ring through a dustproof ring bolt.

[0016] The utility model has the following beneficial effects:

[0017] 1. Connect the top shaft to the dustproof ring through the dustproof ring bolt, set the cross-bite on the outer wall of the bottom end of the top shaft, put the connecting plate washer into the inside of the connecting plate, connect the connecting plate washer to the bottom of the top shaft through the washer bolt, and the top shaft is movably connected to the connecting plate through the connecting plate bolt. The connecting plate bolt ensures that the connecting plate will not rotate or fall. At the same time, the spring groove at the top of the connecting plate is connected to the bottom of the inner wall to achieve the effect of shock absorption and protection of the workpiece surface. Finally, the gland is connected to the connecting plate through the gland bolt. The whole assembly process is convenient and fast. At the same time, according to the different workpieces to be processed, the appropriate cross-bite can be quickly installed to improve the processing accuracy and increase After the work is completed, it can be removed as a whole or the pressure cover can be removed separately, and the other parts remain in the top shaft bearing seat of the equipment, so that the pressure cover can be quickly replaced. It is suitable for processing different workpieces and has high applicability. An upper top shaft assembly can only be used for specific workpieces and cannot meet the use requirements of special workpieces, which limits the use scope of the entire upper top shaft assembly. After the processing is completed, the entire upper top shaft assembly needs to be removed and reinstalled when it is used next time. The operation is cumbersome. The upper top shaft assembly can quickly replace the top shaft, pressure cover and cross-bit according to needs, meet different processing needs, improve processing quality, has high applicability and simple process.

[0018] 2. When the deviation between the upper center seat and the worktable center is within 0.03-0.1, select a cross washer. When the workpiece is special and the deviation between the upper center seat and the worktable center is required to be within 0.01, select a full-contact washer, which has high selectivity and a wide range of applications. At the same time, the spring can ensure that the washer and the connecting plate do not deviate from the center of the shaft, and can move up, down, left and right. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the internal structure of a gear hobbing correction top center shaft assembly proposed by the utility model;

[0020] Figure 2 It is a schematic diagram of the exploded structure of a gear hobbing correction top center shaft assembly proposed by the utility model;

[0021] Figure 3 It is a cross-section structure schematic diagram of a gear hobbing correction top center shaft assembly proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of the connecting plate structure of a gear hobbing correction top center shaft assembly proposed by the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the second center shaft of the gear hobbing correction center shaft assembly proposed by the utility model;

[0024] Figure 6 This is a schematic diagram of the second gland structure of a gear hobbing correction top center shaft assembly proposed by the utility model;

[0025] Figure 7 The utility model is a schematic diagram of the first pressure cover structure of the gear hobbing correction top center shaft assembly.

[0026] Legend:

[0027] 1. Center shaft; 101. First center shaft; 102. Second center shaft; 2. Dust ring; 3. Dust ring bolt; 4. Connecting plate; 5. Connecting plate bolt; 6. Waist groove; 7. Anti-rotation screw hole; 8. Cross head; 801. Cross washer; 802. Full contact washer; 9. Spring groove; 10. Spring; 11. Connecting plate washer; 12. Washer bolt; 13. Pressure cover; 1301. First pressure cover; 1302. Second pressure cover; 14. Pressure cover bolt; 15. Cross sealing groove; 16. Cross sealing ring; 17. Connecting plate sealing groove; 18. Connecting plate sealing ring. DETAILED DESCRIPTION

[0028] Reference Figure 1-7The utility model provides a hobbing gear correction upper top shaft assembly: including a top shaft 1, the top shaft 1 is connected with a dust ring 2 through a dust ring bolt 3, the top shaft 1 is connected with a connecting plate 4 through a connecting plate bolt 5, the connecting plate 4 is located inside the dust ring 2, a waist groove 6 is provided at the bottom of the outer wall of the connecting plate 4, the bottom of the connecting plate bolt 5 is located inside the waist groove 6, an anti-rotation screw hole 7 is provided at the bottom of the outer wall edge of the connecting plate 4, and the number of the anti-rotation screw holes 7 is multiple, the inner wall of the waist groove 6 is movably connected to the lower end of the outer wall of the connecting plate bolt 5, and the bottom outer wall sleeve of the top shaft 1 is provided with a cross head 8 The cross 8 is located in the interlayer between the bottom of the top shaft 1 and the top of the connecting disk 4. A spring groove 9 is opened on the top edge of the connecting disk 4, and there are multiple spring grooves 9. Two adjacent spring grooves 9 form an angle of 120 degrees. The bottom of the inner wall of the multiple spring grooves 9 are fixedly connected with a spring 10. The top of the spring 10 fits with the bottom of the outer wall of the top shaft 1. A connecting disk gasket 11 is arranged inside the connecting disk 4. The connecting disk gasket 11 is connected to the top shaft 1 through a gasket bolt 12. The outer wall of the lower end of the connecting disk 4 is provided with a pressure cover 13, and the pressure cover 13 is connected to the connecting disk 4 through a pressure cover bolt 14.

[0029] The top shaft 1 is connected to the dust ring 2 through the dust ring bolt 3, the cross head 8 is sleeved on the outer wall of the bottom end of the top shaft 1, the connecting plate gasket 11 is placed into the inside of the connecting plate 4, and the connecting plate gasket 11 is connected to the bottom of the top shaft 1 through the gasket bolt 5. The top shaft 1 is movably connected to the connecting plate 4 through the connecting plate bolt 2. The connecting plate bolt 5 ensures that the connecting plate 4 will not rotate or fall. At the same time, the spring groove 9 opened on the top of the connecting plate 4 is connected to the spring 10 at the bottom of the inner wall, which plays a role in shock absorption and protection of the workpiece surface. Finally, the pressure cover is connected to the connecting plate 4 through the pressure cover bolt 14. The whole assembly process is convenient and fast. At the same time, the appropriate cross head 8 can be quickly installed according to the different workpieces to improve the loading The machine has high machining accuracy. After machining, it can be removed as a whole or the gland 13 can be removed separately. The other parts are left in the top shaft bearing seat of the equipment, so that the gland 13 can be quickly replaced. It can be applied to different workpieces and has high applicability. When the deviation between the top seat and the center of the worktable is within 0.03-0.1, select the cross washer 801. When the workpiece is special and the deviation between the top seat and the center of the worktable is required to be within 0.01, select the full contact washer 802. Different top shafts 1 and matching glands 13 can also be selected according to different workpieces. It has high selectivity and a wide range of applications. At the same time, the spring 10 can ensure that the cross seal 16 and the connecting plate 4 do not deviate from the center of the shaft and can move up, down, left and right.

[0030] The top outer wall of the connecting plate bolt 5 is threadedly connected to the top shaft 1, the lower end outer wall of the connecting plate bolt 5 is movably connected to the inner wall of the waist-shaped groove 6, the inner wall of the cross 8 is provided with a cross sealing groove 15, and a cross sealing ring 16 is installed inside the cross sealing groove 15, the inner wall of the connecting plate 4 is provided with a connecting plate sealing groove 17, and a connecting plate sealing ring 18 is installed inside the connecting plate sealing groove 17.

[0031] The top shaft 1 includes a first top shaft 101 and a second top shaft 102, the cross head 8 includes a cross washer 801 and a full-contact washer 802, the pressure cover 13 includes a first pressure cover 1301 and a second pressure cover 1302, and the first top shaft 101 and the second top shaft 102 can be connected to the dust ring 2 through the dust ring bolt 3. The corresponding cross head 8, top shaft 1 and matching pressure cover 13 can be selected according to different workpieces to improve applicability.

[0032] Working principle: Connect the top shaft 1 with the dustproof ring 2 through the dustproof ring bolt 3, set the cross head 8 on the outer wall of the bottom end of the top shaft 1, put the connecting plate washer 11 into the inside of the connecting plate 4, connect the connecting plate washer 11 with the bottom of the top shaft 1 through the washer bolt 5, and the top shaft 1 is movably connected to the connecting plate 4 through the connecting plate bolt 2. The connecting plate bolt 5 ensures that the connecting plate 4 will not rotate or fall. At the same time, the spring groove 9 opened on the top of the connecting plate 4 is connected to the spring 10 at the bottom of the inner wall, which plays a role in shock absorption and protection of the workpiece surface. Finally, the gland is connected to the connecting plate 4 through the gland bolt 14. The whole assembly process is convenient and fast, and can be adjusted according to the addition. According to the different workpieces, the appropriate cross head 8 can be quickly installed to improve the processing accuracy. At the same time, after processing, it can be removed as a whole or the pressure cover 13 can be taken alone, and the other parts remain in the center shaft bearing seat of the equipment to achieve rapid replacement of the pressure cover 13. It can be applied to the processing of different workpieces and has high applicability. When the deviation between the upper center seat and the worktable center is within 0.03-0.1, select the cross washer 801. When the workpiece is special and the deviation between the upper center seat and the worktable center is required to be within 0.01, select the full contact washer 802. Different top shafts 1 and matching pressure covers 13 can also be selected according to different workpieces. It has high selectivity and a wide range of applications.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hobbing gear correction top spindle assembly, comprising a top spindle (1), characterized in that: The top shaft (1) is connected to a dustproof ring (2) via a dustproof ring bolt (3), and the top shaft (1) is connected to a connecting plate (4) via a connecting plate bolt (5). The connecting plate (4) is located inside the dustproof ring (2). A waist-shaped groove (6) is provided at the bottom of the outer wall of the connecting plate (4). The bottom of the connecting plate bolt (5) is located inside the waist-shaped groove (6). An anti-rotation screw hole (7) is provided at the bottom of the outer wall edge of the connecting plate (4), and the number of the anti-rotation screw holes (7) is multiple. The inner wall of the waist-shaped groove (6) is movably connected to the lower end of the outer wall of the connecting plate bolt (5). The bottom outer wall of the top shaft (1) is provided with a cross-shaped nut (8), and the cross-shaped nut (8) is located at the top shaft (1). In the interlayer between the bottom and the top of the connecting disk (4), a spring groove (9) is provided on the top edge of the connecting disk (4), and there are multiple spring grooves (9), and two adjacent spring grooves (9) form an angle of 120 degrees. The bottom of the inner wall of the multiple spring grooves (9) are fixedly connected with a spring (10), and the top of the spring (10) is in contact with the bottom of the outer wall of the top shaft (1). A connecting disk gasket (11) is provided inside the connecting disk (4), and the connecting disk gasket (11) is connected to the top shaft (1) through a gasket bolt (12). The outer wall of the lower end of the connecting disk (4) is sleeved with a pressure cover (13), and the pressure cover (13) is connected to the connecting disk (4) through a pressure cover bolt (14).

2. The gear hobbing correction upper center shaft assembly according to claim 1, characterized in that: The top outer wall of the connecting plate bolt (5) is threadedly connected to the top shaft (1), and the lower end outer wall of the connecting plate bolt (5) is movably connected to the inner wall of the waist-shaped groove (6).

3. The gear hobbing correction upper center shaft assembly according to claim 1, characterized in that: The inner wall of the cross-shaped member (8) is provided with a cross-shaped sealing groove (15), and a cross-shaped sealing ring (16) is installed inside the cross-shaped sealing groove (15).

4. The gear hobbing correction upper center shaft assembly according to claim 1, characterized in that: The inner wall of the connection disk (4) is provided with a connection disk sealing groove (17), and a connection disk sealing ring (18) is installed inside the connection disk sealing groove (17).

5. The gear hobbing correction top center shaft assembly according to claim 1, characterized in that: The top shaft (1) includes a first top shaft (101) and a second top shaft (102), the cross head (8) includes a cross washer (801) and a full contact washer (802), and the pressure cover (13) includes a first pressure cover (1301) and a second pressure cover (1302).

6. The gear hobbing correction top center shaft assembly according to claim 5, characterized in that: The first center spindle (101) and the second center spindle (102) can both be connected to the dust seal (2) via a dust seal bolt (3).

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