Tooth aligning device for milling end face teeth of combined teeth
By combining the end face milling and tooth-pairing device of the teeth to perform circumferential positioning of the half shaft gear, the problems of positioning accuracy and mold life of existing equipment are solved, and higher processing accuracy and equipment durability are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN ZHONGYOU MACHINERY
- Filing Date
- 2025-07-31
- Publication Date
- 2026-05-19
AI Technical Summary
Existing milling equipment has difficulty in effectively positioning the circumferential position of the half-shaft gear, resulting in inaccurate machining and shortened mold life.
A tooth-aligning device using end face tooth milling of the gear with a mating tooth is provided, comprising a fixing part, a limiting part, and a pressure cover. The limiting part is inserted into the end face tooth gap of the half-shaft gear and fixed by the pressure cover to achieve circumferential positioning of the half-shaft gear.
This improves the circumferential positioning and movement accuracy of the half-shaft gear, prevents the limiting part from disengaging, and enhances the accuracy of machining and the service life of the mold.
Smart Images
Figure CN224254387U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of gear processing and positioning equipment, specifically relating to a tooth-aligning device for milling the end face teeth of a connecting tooth. Background Technology
[0002] Currently, some new types of differentials employ a novel type of axle gear. Compared to common axle gears, this type features end-face teeth on the large-diameter side, giving it a locking function. The machining of these end-face teeth typically involves preliminary forging followed by milling for finishing. This is because the end-face teeth operate and bear force on their flanks. To ensure even force distribution, the end-face teeth are usually designed to be perpendicular to the large-diameter side. Without a draft angle, direct forging could result in tooth flank scratches during demolding, and would also reduce mold life. Therefore, most manufacturers forge the end-face teeth with a allowance on the flanks, then mill the teeth to complete the product. Existing milling equipment includes a fixing component for securing the axle gear. Before locking, the axle gear can rotate to adjust its orientation; after locking, it is fixed to the component. To ensure the milling area precisely aligns with the flank of the end-face teeth, the circumferential position of the axle gear needs to be precisely positioned. In summary, how to locate the circumferential position of the half-shaft gear is a technical problem that needs to be solved. Utility Model Content
[0003] The purpose of this invention is to provide a tooth-aligning device for milling teeth on the end face of a gear, which enables circumferential positioning of a half-shaft gear.
[0004] To achieve the aforementioned utility model objectives, the technical solution adopted by this utility model is as follows: This application provides a gear-aligning device for milling the end face teeth of a half-shaft gear, used for circumferential positioning of the half-shaft gear during end face tooth milling. The device includes a fixing part, a limiting part, and a pressure cap. The fixing part includes a first surface with a sliding groove. The limiting part is accommodated in the sliding groove and is used to insert between two adjacent end face teeth. The pressure cap is disposed on the first surface, and the limiting part is disposed between the fixing part and the pressure cap.
[0005] In some embodiments, the end of the limiting part is provided with a positioning part. Along the width direction of the groove, the positioning part includes two positioning sidewalls arranged opposite each other. The distance between the two positioning sidewalls gradually increases from the side of the positioning part away from the end of the limiting part to the side of the positioning part close to the end of the limiting part.
[0006] In some embodiments, along the width direction of the groove, the width of the end of the limiting portion is greater than the distance between the two positioning sidewalls.
[0007] In some embodiments, along the length of the slide, the fixing part includes a first side, the first side is provided with a notch, and along the width of the slide, the notch includes two inner sidewalls, the two inner sidewalls are V-shaped, and the two inner sidewalls intersect at the center line of the slide.
[0008] In some embodiments, along the width direction of the groove, the distance between the two inner sidewalls near the edge of the fixing part is less than the width of the fixing part.
[0009] In some embodiments, a rounded chamfer is provided between the sidewall and bottom wall of the groove along the width direction of the groove.
[0010] In some embodiments, a straight chamfer is provided between the sidewall of the limiting part and the bottom wall facing the slide groove along the width direction of the slide groove.
[0011] In some embodiments, the gland is detachably connected to the fixing part.
[0012] In some embodiments, through holes are provided on both sides of the cover along the width direction of the slide groove, and through holes are provided on both sides of the cover along the length direction of the slide groove.
[0013] This utility model has the following beneficial effects:
[0014] 1. When the limiting part moves toward the half-shaft gear, the limiting part can be inserted into the gap between two adjacent end face teeth of the half-shaft gear. As the insertion length of the limiting part increases, the half-shaft gear can rotate under the action of the limiting part because the limiting part abuts against the rudder side of the end face teeth, thereby achieving circumferential positioning of the half-shaft gear.
[0015] 2. The pressure cap is located on the first surface of the fixed part, which prevents the limiting part from disengaging from the slide groove. Furthermore, the force applied to the limiting part by the pressure cap towards the first surface improves the movement accuracy of the limiting part. Additionally, the movement resistance of the limiting part can be adjusted by changing the force applied to the limiting part by the pressure cap towards the first surface. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the half-shaft gear to be machined;
[0017] Figure 2 This is a schematic diagram showing the fit between the half-shaft gear to be processed and the fixed component in the prior art;
[0018] Figure 3 This is a schematic diagram of the tooth-aligning device for milling the end face teeth of the connecting teeth according to this utility model.
[0019] Figure 4 This is a top view of the fixing part of this utility model.
[0020] Figure 5 This is a side view of the fixing part of this utility model.
[0021] Figure 6 This is a schematic diagram of the slide groove of this utility model;
[0022] Figure 7 This is a top view of the cap structure of this utility model;
[0023] Figure 8 This is a side view of the cap structure of this utility model;
[0024] Figure 9 This is a top view of the limiting part of this utility model;
[0025] Figure 10 This is a side view of the limiting part of the present invention.
[0026] Figure 11 This is a schematic diagram of the tooth-matching device for end-face tooth milling and the mating structure of the half-shaft gear of this utility model.
[0027] Icon labels:
[0028] 1-Half-shaft gear, 2-End face tooth, 3-Fixing component, 4-Fixing part, 5-Gland cover, 6-Limiting part, 7-Positioning part, 8-Positioning side wall, 9-Inner side wall, 10-Notch part, 11-Slide groove, 12-Circular arc chamfer, 13-Straight face chamfer. Detailed Implementation
[0029] The technical solutions of the present invention 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 invention, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.
[0030] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0031] This application provides a gear-aligning device for milling the end face teeth 2 of a half-shaft gear 1, used for circumferential positioning of the half-shaft gear 1 during milling of the end face teeth 2. The device includes a fixing part 4, a limiting part 6, and a pressure cap 5. The fixing part 4 includes a first surface with a groove 11. The limiting part 6 is accommodated in the groove 11 and is used to insert between two adjacent end face teeth 2. The pressure cap 5 covers the first surface, and the limiting part 6 is disposed between the fixing part 4 and the pressure cap 5.
[0032] The tooth-setting device in this embodiment can be installed on a tooth-milling machine.
[0033] Circumferential positioning of the half-shaft gear 1 means rotating the half-shaft gear 1 so that the tooth flank of the end face tooth 2 is at the machining position.
[0034] The fixing part 4 is used to install the entire device onto the gear milling equipment.
[0035] The limiting part 6 is accommodated in the slide groove 11, allowing the limiting part 6 to move along the slide groove 11. As in the background art, milling equipment includes a fixing component 3 for fixing the half-shaft gear 1. The structure and working principle of the fixing component 3 are well known to those skilled in the art, and this feature is not part of the technical improvement content of this application. Therefore, the detailed structure of the fixing component 3 of the milling equipment will not be described here. In summary, the fixing component 3 includes a receiving cavity. When engaged, the small diameter side of the half-shaft gear 1 faces into the receiving cavity. By applying pressure to the half-shaft gear 1 through the pressure-applying component, the half-shaft gear 1 can be fixed to the fixing component 3. When the half-shaft gear 1 is set on the fixing component 3, the small diameter end of the half-shaft gear 1 faces downwards, and the large diameter section faces upwards. When the fixing component 3 is not locked, the half-shaft gear 1 can rotate to adjust its circumferential position. Therefore, after the fixing part 4 of this embodiment is installed in the milling equipment, the moving direction of the limiting part 6 can be set to pass through the axis of the half-shaft gear 1 and extend radially along the half-shaft gear 1.
[0036] When the limiting part 6 moves toward the half-shaft gear 1, the limiting part 6 can be inserted into the gap between two adjacent end face teeth 2 of the half-shaft gear 1. As the insertion length of the limiting part 6 increases, since the limiting part 6 abuts against the lateral side of the end face teeth 2, the half-shaft gear 1 can rotate under the action of the limiting part 6, thereby achieving circumferential positioning of the half-shaft gear 1.
[0037] Once the positioning is complete, first lock the half-shaft gear 1 to the fixing component 3, and then the limiting part 6 can be moved out of the gap of the end face tooth 2.
[0038] The pressure cap 5 is placed on the first surface of the fixing part 4, which prevents the limiting part 6 from disengaging from the slide groove 11. On the other hand, the force applied to the limiting part 6 by the pressure cap 5 towards the first surface can improve the movement accuracy of the limiting part 6. Furthermore, by adjusting the force applied to the limiting part 6 by the pressure cap 5 towards the first surface, the movement resistance of the limiting part 6 can be adjusted.
[0039] In some embodiments, the end of the limiting part 6 is provided with a positioning part 7. Along the width direction of the slide groove 11, the positioning part 7 includes two opposing positioning sidewalls 8. The distance between the two positioning sidewalls 8 gradually increases from the side of the positioning part 7 away from the end of the limiting part 6 to the side of the positioning part 7 close to the end of the limiting part 6.
[0040] The width direction of the groove 11 can be the direction shown by the Y-axis in the figure.
[0041] The positioning part 7 is used to insert into the gap of the end face tooth 2.
[0042] The positioning sidewall 8 of the positioning part 7 is used to contact the tooth side of the end face tooth 2.
[0043] From the side of the positioning part 7 furthest from the end of the limiting part 6 to the side closest to the end of the limiting part 6, the distance between the two positioning sidewalls 8 gradually increases, thus forming a V-shaped structure. This facilitates the insertion of the positioning part 7 into the gap of the end face tooth 2, and as the insertion depth of the positioning part 7 increases, the positioning sidewalls 8 can drive the half-shaft gear 1 to rotate. Furthermore, the V-shaped structure of the two positioning sidewalls 8 can be adapted to the gap space of the end face tooth 2.
[0044] In some embodiments, along the width direction of the groove 11, the width of the end of the limiting part 6 is greater than the distance between the two positioning sidewalls 8.
[0045] The width of the end of the limiting part 6 is greater than the distance between the two positioning sidewalls 8, so that in the width direction of the slide groove 11, the two sides of the end of the limiting part 6 protrude from the two sides of the positioning part 7.
[0046] This configuration allows the end of the limiting part 6 to limit the depth of the insertion of the positioning part 7 into the end face tooth 2. That is, when the insertion depth of the positioning part 7 reaches the set value, the end of the limiting part 6 can abut against the half shaft gear 1, thereby improving the positioning effect.
[0047] In some embodiments, along the length direction of the slide groove 11, the fixing part 4 includes a first side, the first side is provided with a notch 10, and along the width direction of the slide groove 11, the notch 10 includes two inner sidewalls 9, the two inner sidewalls 9 are V-shaped, and the two inner sidewalls 9 intersect at the center line of the slide groove 11.
[0048] The first side can be the side of the fixing part 4 facing the half-shaft gear 1.
[0049] The positioning part 7 can be provided at one end of the limiting part 6 near the notch part 10.
[0050] The notch 10 can be used for positioning the fixing part 4. For example, when the fixing part 4 is installed on a gear milling machine, by setting the fixing component 3 at the central axis of the notch 10, the limiting part 6 can be positioned to move radially along the half-shaft gear 1. On the other hand, the limiting part 6 has higher movement accuracy near the pressure cover 5, and the movement accuracy decreases and the error increases the further away from the pressure cover 5. The notch 10 allows the end of the limiting part 6 where the positioning part 7 is located to be as close as possible to the pressure cover 5, thereby improving the movement accuracy of the positioning part 7. Furthermore, the inner wall 9 of the notch 10 can be used for auxiliary positioning of the half-shaft gear 1.
[0051] In some embodiments, along the width direction of the groove 11, the distance between the two inner sidewalls 9 on the side near the edge of the fixing part 4 is less than the width of the fixing part 4.
[0052] That is, the opening of the notch 10 is smaller than the width of the first side of the fixing part 4.
[0053] The advantage of this arrangement is that the portion of the first side of the fixing part 4 outside the notch 10 can position the fixing part 4 when it is installed on the gear milling equipment.
[0054] In some embodiments, a rounded chamfer 12 is provided between the sidewall and bottom wall of the slide groove 11 along the width direction of the slide groove 11.
[0055] The rounded chamfer 12 eliminates sharp edges through a smooth transition, reducing the risk of stress concentration in the slide groove 11 and improving its service life. On the other hand, when the pressure cap 5 applies force to the limiting part 6, the rounded chamfer 12 allows the limiting part 6 to automatically center itself.
[0056] In some embodiments, a straight chamfer 13 is provided between the side wall of the limiting part 6 and the bottom wall facing the slide groove 11 along the width direction of the slide groove 11.
[0057] When the limiting part 6 and the slide groove 11 are engaged, the straight chamfer 13 contacts the arc chamfer 12.
[0058] The chamfer 13 reduces the contact area between the limiting part 6 and the slide 11, thereby reducing the resistance of the limiting part 6 moving along the slide 11.
[0059] In some embodiments, the pressure cap 5 is detachably connected to the fixing part 4.
[0060] For example, the pressure cap 5 can be bolted to the fixing part 4. The pressure cap 5 is detachably connected to the fixing part 4, which facilitates the installation and removal of the limiting part 6.
[0061] In some embodiments, through holes are provided on both sides of the cover 5 along the width direction of the slide groove 11 and on both sides of the cover 5 along the length direction of the slide groove 11.
[0062] The through hole of the gland 5 is used for bolts to pass through, and the bolts can be threaded into the fixing part 4.
[0063] The length direction of the groove 11 can be the direction shown by the X-axis in the figure.
[0064] By evenly distributing multiple through holes, the uniformity of the force applied by the pressure cap 5 to the limiting part 6 can be improved, and at the same time, the moving accuracy of the limiting part 6 along the slide groove 11 can be improved.
[0065] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications, alterations, alterations, or substitutions made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model shall fall within the protection scope defined by the claims of the present utility model.
Claims
1. A gaging device for gaging the face gear (2) of a pinion (1) when milling the face gear (2) of the pinion (1), characterized in that, The utility model relates to a fixing part (4) including a first surface provided with a sliding groove (11), a limiting part (6) accommodated in the sliding groove (11) for insertion between two adjacent end surface teeth (2), and a cover (5) covering the first surface, wherein the limiting part (6) is arranged between the fixing part (4) and the cover (5). An end of the limiting part (6) is provided with a positioning part (7) including two oppositely arranged positioning side walls (8) along the width direction of the sliding groove (11), wherein the distance between the two positioning side walls (8) gradually increases from the side of the positioning part (7) away from the end of the limiting part (6) to the side close to the end of the limiting part (6). The width of the end of the limiting part (6) along the width direction of the sliding groove (11) is greater than the distance between the two positioning side walls (8). The fixing part (4) includes a first side provided with a notch part (10) along the length direction of the sliding groove (11), wherein the notch part (10) includes two inner side walls (9) in a V shape intersecting at the center line of the sliding groove (11) along the width direction of the sliding groove (11).
2. The gaging device for gaging the teeth of an end face tooth (2) milled on a pinion, according to claim 1, characterized in that, The distance between the two inner side walls (9) close to the edge of the fixing part (4) along the width direction of the sliding groove (11) is less than the width of the fixing part (4).
3. The gaging device for gaging the teeth of an end face tooth (2) according to claim 2, characterized in that An arc chamfer (12) is arranged between the side wall and the bottom wall of the sliding groove (11) along the width direction of the sliding groove (11).
4. The gaging device for gaging the teeth of an end face tooth (2) milled by a cutter according to claim 1, characterized in that, A straight chamfer (13) is arranged between the side wall of the limiting part (6) and the bottom wall facing the sliding groove (11) along the width direction of the sliding groove (11).
5. The gaging device for gaging the teeth of an end face tooth (2) according to claim 4, characterized in that The cover (5) is detachably connected to the fixing part (4).
6. The gage tooth milling device of claim 1, wherein, Two through holes are arranged on the two sides of the cover (5) along the width direction of the sliding groove (11), and two through holes are arranged on the two sides of the cover (5) along the length direction of the sliding groove (11).
7. The gaging device for gaging the teeth of an end face tooth (2) according to claim 6, characterized in that 8. The gaging device for gaging the teeth of an end face tooth (2) according to claim 1, characterized in that 9. The gaging device for gaging the teeth of an end face tooth (2) according to claim 8, characterized in that