Connecting tooth machining clamp with retainer structure

Abstract

The utility model is specifically related to a connecting tooth machining clamp with a guard ring structure, belonging to the technical field of clamp. The connecting tooth machining clamp with the guard ring structure, including fixed disc, a plurality of arc blocks and connecting portion. The fixed disc includes oppositely arranged first end face and second end face, and the first end face is equipped with annular groove, and the connecting gear is configured to abut against the first end face when fixed. A plurality of arc blocks are accommodated in the annular groove, and the arc block is configured to be adjustable in position. The connecting portion is used for the lathe clamping, and the connecting portion is connected to the second end face. When fixing the connecting gear to the fixed disc, the connecting gear is abutted against the first end face, and the claw portion of the connecting gear is inserted into the arc-shaped groove. The arc block can position the connecting gear, and the positioning accuracy of the connecting gear is improved.

Description

Technical Field

[0001] This utility model belongs to the field of fixture technology, and specifically relates to a connecting tooth machining fixture with a protective ring structure. Background Technology

[0002] Some automotive limited-slip differentials include a connecting gear with a protective ring; see appendix. Figure 1 The connecting gear is a face gear, with a protective ring around the circumference of the face teeth. Additionally, a claw-like portion is provided on the back side of the face teeth. This connecting gear is manufactured using a forging process. The forging process includes a blank turning procedure, where the blank is machined before cold pressing to adjust its dimensions and ensure the final workpiece dimensions meet requirements. Due to the structural characteristics of the connecting gear, how to fix the blank during blank turning is a technical problem that needs to be solved. Utility Model Content

[0003] The purpose of this invention is to provide a connecting tooth machining fixture with a protective ring structure, which can fix the blank during machining.

[0004] To achieve the aforementioned objectives, the technical solution adopted by this utility model is as follows: This application provides a connecting gear machining fixture with a retaining ring structure, including a fixed disk, multiple arc-shaped blocks, and a connecting portion. The fixed disk includes a first end face and a second end face disposed opposite to each other. The first end face is provided with an annular groove, and the connecting gear is configured to abut against the first end face when fixed. The multiple arc-shaped blocks are accommodated in the annular groove, and the arc-shaped blocks are configured to be positionally adjustable. The connecting portion is used for clamping on a lathe and is connected to the second end face.

[0005] In some embodiments, the fixed disk is provided with adjustment holes corresponding to multiple arc-shaped blocks. The adjustment holes penetrate the fixed disk along the axial direction of the fixed disk and are arc-shaped. The adjustment holes are connected to the arc-shaped grooves. The arc-shaped blocks are provided with screw portions. The screw portions pass through the adjustment holes, and the portion of the screw portions located on the second end face is threadedly connected to the first nut.

[0006] In some embodiments, a first washer is provided between the first nut and the second end face.

[0007] In some embodiments, a pressure-applying component is further included, comprising a guide rod and a stop portion. The guide rod is movably connected to the fixed disk along the axial direction of the fixed disk, and is configured such that when the connecting gear abuts against the first end face, the guide rod passes through the inner hole of the connecting gear. The stop portion is connected to the guide rod and is used to abut against the side of the connecting gear away from the first end face.

[0008] In some embodiments, the abutment portion is provided with a strip-shaped hole, the guide rod passes through the strip-shaped hole, the guide rod is provided with a positioning portion, the guide rod is threadedly connected to a second nut, and the abutment portion is disposed between the positioning portion and the second nut.

[0009] In some embodiments, the fixed plate is provided with an axial hole, and a countersunk section is provided on the side of the axial hole near the first end face, and the guide rod is provided in the countersunk section.

[0010] In some embodiments, the positioning part faces the arc surface of the inner wall of the countersunk hole section.

[0011] In some embodiments, a second washer is provided between the second nut and the abutment portion.

[0012] In some embodiments, the abutment portion is fan-shaped.

[0013] In some embodiments, the fixed disk is provided with a sliding hole that extends through the fixed disk along its axial direction, and a guide rod passes through the sliding hole. A third nut is connected to one side of the guide rod located on the second end face.

[0014] This utility model has the following beneficial effects:

[0015] 1. When fixing the connecting gear to the fixed plate, the connecting gear is pressed against the first end face, and the claw of the connecting gear is inserted into the arc-shaped groove. The arc-shaped block can position the connecting gear, improving the positioning accuracy of the connecting gear.

[0016] 2. The adjustment hole is used to position the arc-shaped block, so that the position of the arc-shaped block in the annular groove can be adjusted to improve the positioning accuracy of the connecting gear. Attached Figure Description

[0017] Figure 1 A schematic diagram of the connecting gear that needs to be machined;

[0018] Figure 2 This is a front structural diagram of the connecting tooth machining fixture with a protective ring structure according to this utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A;

[0020] Figure 4 This is a schematic diagram of the back structure of the connecting tooth machining fixture with a protective ring structure according to this utility model;

[0021] Figure 5 This is a schematic diagram of the connecting tooth machining fixture with a protective ring structure of this utility model (showing the positioning part).

[0022] Icon labels:

[0023] 1-Fixed disc, 2-First end face, 3-Annular groove, 4-Arc block, 5-Adjusting hole, 6-Guide rod, 7-Abutting part, 8-Counterhead section, 9-Second nut, 10-Strip hole, 11-Second washer, 12-Second end face, 13-Screw part, 14-First nut, 15-First washer, 16-Connecting part, 17-Positioning part, 18-Claw part, 19-Connecting gear. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] This application provides a machining fixture for connecting gears with a retaining ring structure, including a fixed disk 1, multiple arc-shaped blocks 4, and a connecting portion 16. The fixed disk 1 includes a first end face 2 and a second end face 12 disposed opposite to each other. The first end face 2 is provided with an annular groove 3, and the connecting gear 19 is configured to abut against the first end face 2 when fixed. The multiple arc-shaped blocks 4 are accommodated in the annular groove 3, and the arc-shaped blocks 4 are configured to be positionally adjustable. The connecting portion 16 is used for clamping on a lathe and is connected to the second end face 12.

[0027] When fixing the connecting gear 19 to the fixed plate 1, the connecting gear 19 is pressed against the first end face 2, and the claw part 18 of the connecting gear 19 is inserted into the arc-shaped groove.

[0028] The arc-shaped block 4 is used to position the connecting gear 19, for example, by placing the claw 18 between two arc-shaped blocks 4.

[0029] The position of the arc block 4 is adjustable, so that the position of the arc block 4 in the annular groove 3 can be adjusted to improve the positioning accuracy of the arc block 4 for the connecting gear 19.

[0030] The connecting part 16 allows the fixed plate 1 to be fixed to the lathe. The connecting part 16 may have a hollow cylindrical structure, which facilitates the placement of the connecting part 16 between the jaws of the lathe chuck.

[0031] In some embodiments, the fixed disk 1 is provided with adjustment holes 5 corresponding to a plurality of arc blocks 4. The adjustment holes 5 penetrate the fixed disk 1 along the axial direction of the fixed disk 1. The adjustment holes 5 are arc-shaped and communicate with the arc groove. The arc block 4 is provided with a screw part 13. The screw part 13 passes through the adjustment hole 5. The part of the screw part 13 located on the second end face 12 is threadedly connected to the first nut 14.

[0032] The adjustment hole 5 is used to position the arc-shaped block 4. That is, since the screw part 13 passes through the adjustment hole 5, the adjustment hole 5 and the screw part 13 cooperate to position the arc-shaped block 4.

[0033] The screw portion 13 is threadedly connected to the first nut 14, so that the arc-shaped block 4 can be unlocked or locked when the first nut 14 is turned. Specifically, when the first nut 14 is tightened, the first nut 14 moves towards the second end face 12, and the arc-shaped block 4 can be locked. When the first nut 14 is loosened, the first nut 14 moves away from the second end face 12, and the arc-shaped block 4 can be unlocked.

[0034] In some embodiments, a first washer 15 is provided between the first nut 14 and the second end face 12.

[0035] The first washer 15 can increase the contact area between the first nut 14 and the second end face 12, thereby improving the fixing reliability of the first nut 14 to the arc block 4.

[0036] In some embodiments, a pressure-applying component is further included, comprising a guide rod 6 and a stop portion 7. The guide rod 6 is movably connected to the fixed disk 1 along the axial direction of the fixed disk 1, and is configured such that when the connecting gear 19 abuts against the first end face 2, the guide rod 6 passes through the inner hole of the connecting gear 19. The stop portion 7 is connected to the guide rod 6 and is used to abut against the side of the connecting gear 19 away from the first end face 2.

[0037] The guide rod 6 passes through the inner hole of the connecting gear 19, so that the abutment part 7 can abut against the area of ​​the connecting gear 19 near the inner circumference, reducing the area of ​​the abutment part 7 obstructing the connecting gear 19.

[0038] The abutting part 7 abuts against the side of the connecting gear 19 away from the first end face 2, so that the abutting part 7 can apply pressure to the connecting gear 19 and press the connecting gear 19 tightly against the first end face 2.

[0039] In some embodiments, the abutment 7 is provided with a strip hole 10, the guide rod 6 passes through the strip hole 10, the guide rod 6 is provided with a positioning part 17, the guide rod 6 is threadedly connected to a second nut 9, and the abutment 7 is disposed between the positioning part 17 and the second nut 9.

[0040] The guide rod 6 passes through the strip hole 10, allowing the abutment part 7 to be adjusted radially in the fixed plate 1. Simultaneously, the abutment part 7 can also rotate relative to the guide rod 6, increasing the range of positional adjustment for the abutment part 7.

[0041] The second nut 9 cooperates with the positioning part 17 to unlock or fix the abutment part 7.

[0042] In some embodiments, the fixed plate 1 is provided with an axial hole, and a countersunk section 8 is provided on the side of the axial hole near the first end face 2, and the guide rod 6 is provided in the countersunk section 8.

[0043] The countersunk section 8 can reduce the weight of the fixed plate 1 on the one hand, and on the other hand, it can accommodate the positioning part 17. That is, when the abutment part 7 moves toward the first end face 2, the positioning part 17 can enter the countersunk hole, so that the abutment part 7 can get as close as possible to the first end face 2.

[0044] In some embodiments, the positioning part 17 faces the arc surface of the inner wall of the countersunk hole section 8.

[0045] When the positioning part 17 enters the countersunk section 8, the arc surface of the positioning part 17 can abut against the inner wall surface of the countersunk section 8, so that the countersunk section 8 can position the positioning part 17, and thus position the guide rod.

[0046] In some embodiments, a second washer 11 is provided between the second nut 9 and the abutment 7.

[0047] The second washer 11 increases the contact area between the second nut 9 and the abutment 7, thereby improving the fixing effect of the second nut 9 and the positioning part 17 on the abutment 7.

[0048] In some embodiments, the abutment portion 7 is fan-shaped.

[0049] The abutment part 7 is fan-shaped. On the one hand, this makes the surface area of ​​the abutment part 7 near the connecting gear 19 larger, increasing the contact area between the abutment part 7 and the connecting gear 19, thereby improving the fixing effect of the abutment part 7 on the connecting gear 19. On the other hand, this prevents the size of the side of the abutment part 7 away from the connecting gear 19 from increasing excessively, which reduces costs and weight.

[0050] In some embodiments, the fixed disk 1 is provided with a sliding hole that extends through the fixed disk 1 along the axial direction of the fixed disk 1, and the guide rod 6 passes through the sliding hole. A third nut is connected to one side of the guide rod 6 located on the second end face 12.

[0051] The guide rod 6 passes through the sliding hole, allowing the guide rod 6 to move axially along the fixed plate 1.

[0052] The third nut is connected to the guide rod 6, allowing the guide rod 6 to be driven by the third nut, thus enabling the abutment 7 to fix the connecting gear 19. For example, when the third nut is tightened, it moves towards the second end face 12. Under the limiting action of the third nut, the abutment 7 can press tightly against the connecting gear 19, at which point the connecting gear 19 is fixed by the abutment 7. Conversely, when the third nut is loosened, the third nut...

[0053] 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 machining fixture for connecting teeth with a retaining ring structure, characterized in that, include: The fixed plate (1) includes a first end face (2) and a second end face (12) disposed opposite to each other. The first end face (2) is provided with an annular groove (3), and the connecting gear (19) is configured to abut against the first end face (2) when fixed. Multiple arc-shaped blocks (4) are accommodated in the annular groove (3), and the arc-shaped blocks (4) are configured to be position-adjustable; A connecting part (16) is used for clamping by a lathe, and the connecting part (16) is connected to the second end face (12).

2. The connecting tooth machining fixture with a retaining ring structure according to claim 1, characterized in that, The fixed disk (1) is provided with adjustment holes (5) corresponding to the multiple arc blocks (4). The adjustment holes (5) penetrate the fixed disk (1) along the axial direction of the fixed disk (1). The adjustment holes (5) are arc-shaped and communicate with the annular groove (3). The arc block (4) is provided with a screw part (13). The screw part (13) passes through the adjustment hole (5). The part of the screw part (13) located on the second end face (12) is threadedly connected to the first nut (14).

3. The connecting tooth machining fixture with a retaining ring structure according to claim 2, characterized in that, A first washer (15) is provided between the first nut (14) and the second end face (12).

4. The connecting tooth machining fixture with a retaining ring structure according to claim 1, characterized in that, It also includes a pressure-applying component, the pressure-applying component comprising: A guide rod (6) is movably connected to the fixed disk (1) along the axial direction of the fixed disk (1). The guide rod (6) is configured to pass through the inner hole of the connecting gear (19) when the connecting gear (19) abuts against the first end face (2). The abutment part (7) is connected to the guide rod (6) and is used to abut against the side of the connecting gear (19) away from the first end face (2).

5. The connecting tooth machining fixture with a retaining ring structure according to claim 4, characterized in that, The abutment part (7) is provided with a strip hole (10), the guide rod (6) passes through the strip hole (10), the guide rod (6) is provided with a positioning part (17), the guide rod (6) is threadedly connected to a second nut (9), and the abutment part (7) is provided between the positioning part (17) and the second nut (9).

6. The connecting tooth machining fixture with a retaining ring structure according to claim 5, characterized in that, The fixed plate (1) is provided with an axial hole, and a countersunk section (8) is provided on the side of the axial hole near the first end face (2), and the guide rod (6) is provided in the countersunk section (8).

7. The connecting tooth machining fixture with a retaining ring structure according to claim 6, characterized in that, The positioning part (17) is an arc surface facing the inner wall of the countersunk hole section (8).

8. The connecting tooth machining fixture with a retaining ring structure according to claim 5, characterized in that, A second washer (11) is provided between the second nut (9) and the abutment (7).

9. The connecting tooth machining fixture with a retaining ring structure according to claim 4, characterized in that, The abutment part (7) is fan-shaped.

10. The connecting tooth machining fixture with a retaining ring structure according to claim 4, characterized in that, The fixed disk (1) is provided with a sliding hole, which penetrates the fixed disk (1) along the axial direction of the fixed disk (1). The guide rod (6) passes through the sliding hole, and a third nut is connected to one side of the guide rod (6) on the second end face (12).

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