Gear ring support gear shaping tool

Abstract

The utility model discloses a gear ring support gear shaping tool which comprises a bottom plate used for being installed on a gear shaping machine, a positioning assembly used for positioning when a gear ring support is installed and a pressing plate used for pressing the gear ring support, the positioning assembly is arranged on the bottom plate, and the pressing plate is arranged above the positioning assembly through a first installation structure. The positioning assembly comprises a positioning seat used for preventing the gear ring support from making contact with the bottom plate and a positioning shaft used for supporting the gear ring support from the inner side, the positioning seat is arranged on the bottom plate, the lower end of the positioning shaft is arranged on the positioning seat through a second installation structure, and the upper end of the positioning shaft extends into an inner hole of the gear ring support. The gear ring support can be well positioned and supported through the positioning shaft and the positioning seat, meanwhile, the pressing plate is arranged, it can be effectively guaranteed that in the gear shaping process, the gear ring support cannot rotate, namely, the gear ring support is fixed between the pressing plate and the positioning seat, the overall fixing mode is simple, and the stability of the gear ring support in the machining process can be effectively guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts processing, and in particular relates to a gear ring bracket gear shaping tool. Background Art

[0002] like Figure 1 As shown, the gear ring bracket used as an automobile accessory has two different external teeth spaced apart on the upper and lower outer diameters. During processing, the external teeth with a small diameter at the upper end are usually processed first, and then the external teeth with a large diameter at the lower end are processed. When processing the external teeth with a small diameter, positioning and fixing are usually achieved through the outer side of the lower end. However, when processing the external teeth with a large diameter at the lower end, since the external teeth with a small diameter at the upper end have been processed, fixing and positioning during processing cannot be achieved through the outer side of the upper end. Utility Model Content

[0003] The utility model provides a gear ring bracket gear shaping tool, which can be used as a positioning and fixing tool when the gear ring bracket first processes small-diameter external teeth and then performs gear shaping processing on large-diameter external teeth.

[0004] To this end, the technical solution adopted by the utility model is: a gear ring bracket gear shaping tool, including a base plate for installation on a gear shaping machine, a positioning assembly for positioning the gear ring bracket during installation, and a pressure plate for pressing the gear ring bracket, the positioning assembly is arranged on the base plate, and the pressure plate is arranged above the positioning assembly through a first mounting structure; the positioning assembly includes a positioning seat for preventing the gear ring bracket from contacting the base plate and a positioning shaft for supporting the gear ring bracket from the inside, the positioning seat is arranged on the base plate, and the outer diameter of the positioning seat is smaller than the root circle diameter of the large-diameter external teeth to be processed, the lower end of the positioning shaft is arranged on the positioning seat through a second mounting structure, the upper end of the positioning shaft extends into the inner hole of the gear ring bracket, and the diameter of the positioning shaft matches the minimum inner diameter of the inner hole of the gear ring bracket.

[0005] As a preferred embodiment of the above scheme, the first mounting structure includes a threaded section arranged at the upper end of the positioning shaft and having an outer diameter smaller than the middle part of the positioning shaft, and the threaded section can pass upward through the inner hole of the ring gear bracket, and the threaded section is equipped with a clamping nut that can clamp the pressure plate.

[0006] Further preferably, the outer diameter of the pressing plate is not larger than the root circle diameter of the large-diameter external tooth to be processed, and an open groove connected to the center of the pressing plate is provided on the pressing plate, and the width of the open groove is not smaller than the major diameter of the threaded segment.

[0007] Further preferably, the second mounting structure includes a mounting section with an external thread which is arranged at the lower end of the positioning shaft and has a diameter smaller than that of the middle part of the positioning shaft, the positioning seat is provided with a mounting hole for the mounting section to be inserted and installed, the mounting section is provided with a fixing nut after passing downward through the mounting hole, and the bottom plate is provided with a clearance hole for tightening the fixing nut.

[0008] Further preferably, an anti-rotation plane is provided at a position in the middle of the positioning shaft for contacting with the minimum inner diameter of the inner hole of the ring gear bracket.

[0009] Further preferably, the positioning seat is provided with a mounting countersunk hole for fixing the positioning seat on the base plate.

[0010] Further preferably, the bottom plate is provided with a mounting strip hole whose opening is connected to the edge of the bottom plate and is used for mounting the bottom plate.

[0011] The beneficial effects of the utility model are as follows: the positioning shaft and the positioning seat can well realize the positioning support of the ring gear bracket, and a pressure plate is provided at the same time, which can effectively ensure that the ring gear bracket will not rotate during the gear inserting process, that is, the ring gear bracket is fixed between the pressure plate and the positioning seat. The overall fixing method is simple and can effectively ensure the stability of the ring gear bracket during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of the ring gear bracket.

[0013] Figure 2 It is a schematic diagram of the utility model.

[0014] Figure 3 It is a cross-sectional view of the utility model.

[0015] Figure 4 It is a schematic diagram of the positioning shaft in the utility model.

[0016] Figure 5 This is a schematic diagram of the utility model after the gear ring bracket is installed.

[0017] Figure markings: base plate-1, clearance hole-1a, mounting strip hole-1b, gear ring bracket-2, pressure plate-3, opening groove-3a, positioning seat-4, mounting hole-4a, mounting countersunk hole-4c, positioning shaft-5, threaded section-5a, mounting section-5b, anti-rotation plane-5c, fixing nut-6. DETAILED DESCRIPTION

[0018] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0019] like Figure 2-Figure 5 As shown, a gear ring bracket gear shaping tool is mainly composed of a base plate 1, a pressure plate 3, a positioning assembly, a first mounting structure and a second mounting structure. The base plate 1 is used to be installed on a gear shaping machine, the positioning assembly is used to position the gear ring bracket 2 during installation, and the pressure plate 3 is used to press the gear ring bracket 2. The positioning assembly is arranged on the base plate 1, and the pressure plate 1 is arranged above the positioning assembly through the first mounting structure.

[0020] The specific structure of the positioning assembly includes a positioning seat 4 for preventing the ring gear bracket 2 from contacting the base plate 1 and a positioning shaft 5 for supporting the ring gear bracket 2 from the inside. The positioning seat is arranged on the base plate, and the outer diameter of the positioning seat is smaller than the root circle diameter of the large-diameter external gear to be processed. The lower end of the positioning shaft 5 is arranged on the positioning seat 4 through the second mounting structure, and the upper end of the positioning shaft 5 extends into the inner hole of the ring gear bracket 2, and the diameter of the positioning shaft 5 matches the minimum inner diameter of the inner hole of the ring gear bracket 2.

[0021] The specific structure of the first mounting structure includes a threaded section 5a which is arranged at the upper end of the positioning shaft 5 and has an outer diameter smaller than the middle part of the positioning shaft, and the threaded section 5a can pass through the inner hole of the ring gear bracket 2 upwards, and a clamping nut which can clamp the pressing plate 3 is provided on the threaded section 5a. For the convenience of processing, the outer diameter of the pressing plate 3 is not larger than the root circle diameter of the large-diameter external teeth to be processed. For the convenience of installing the ring gear bracket, an open groove 3a which is connected to the center of the pressing plate 3 is provided on the pressing plate 3, and the width of the open groove 3a is not smaller than the large diameter of the threaded section 5a, so that the pressing ring can be quickly removed and placed on the ring gear bracket.

[0022] The specific structure of the second mounting structure includes a mounting section 5b with an external thread which is arranged at the lower end of the positioning shaft 5 and has a diameter smaller than that of the middle part of the positioning shaft. At the same time, a mounting hole 4a for the mounting section 5b to be inserted and installed is arranged on the positioning seat 4, and a fixing nut 6 is arranged after the mounting section 5b passes downward through the mounting hole 4a. In order to facilitate the installation of the fixing nut, a clearance hole 1a for tightening the fixing nut 6 is arranged on the base plate 1.

[0023] Preferably, an anti-rotation plane is provided at the middle of the positioning shaft at a position for contacting with the minimum inner diameter of the inner hole of the gear ring bracket, and two anti-rotation planes are symmetrically provided about the axis.

[0024] In order to prevent the nut used to fix the bolt between the positioning seat and the base plate from affecting the installation of the ring gear bracket, a mounting countersunk hole 4c is provided on the positioning seat 4 for fixing the positioning seat 4 on the base plate.

[0025] To facilitate the initial installation of the base plate, a mounting hole 1b is provided on the base plate 1, the opening of which is connected to the edge of the base plate and is used for mounting the base plate, and one end of the mounting hole away from the edge of the base plate is set to be semicircular.

Claims

1. A gear ring bracket gear shaping tool, characterized in that: The invention comprises a base plate (1) for mounting on a gear shaping machine, a positioning assembly for positioning a gear ring bracket (2) during mounting, and a pressing plate (3) for pressing the gear ring bracket (2), wherein the positioning assembly is arranged on the base plate (1), and the pressing plate (3) is arranged above the positioning assembly via a first mounting structure; the positioning assembly comprises a positioning seat (4) for preventing the gear ring bracket (2) from contacting the base plate (1), and a positioning shaft (5) for supporting the gear ring bracket (2) from the inside, wherein the positioning seat is arranged on the base plate, and the outer diameter of the positioning seat is smaller than the root circle diameter of the large-diameter external teeth to be machined, the lower end of the positioning shaft (5) is arranged on the positioning seat (4) via a second mounting structure, the upper end of the positioning shaft (5) extends into the inner hole of the gear ring bracket (2), and the diameter of the positioning shaft (5) matches the minimum inner diameter of the inner hole of the gear ring bracket (2).

2. The gear ring bracket gear shaping tool according to claim 1, characterized in that: The first mounting structure comprises a threaded section (5a) arranged at the upper end of the positioning shaft (5) and having an outer diameter smaller than that of the middle part of the positioning shaft, and the threaded section (5a) can pass upward through the inner hole of the gear ring bracket (2), and the threaded section (5a) is equipped with a clamping nut capable of clamping the pressure plate (3).

3. The gear ring bracket gear inserting tool according to claim 2, characterized in that: The outer diameter of the pressing plate (3) is not greater than the root diameter of the large-diameter external tooth to be processed, and the pressing plate (3) is provided with an open groove (3a) connected to the center of the pressing plate (3), and the width of the open groove (3a) is not less than the major diameter of the threaded section (5a).

4. The gear ring bracket gear inserting tool according to claim 1, characterized in that: The second mounting structure comprises a mounting section (5b) with an external thread and arranged at the lower end of the positioning shaft (5) and having a diameter smaller than that of the middle part of the positioning shaft; the positioning seat (4) is provided with a mounting hole (4a) for the mounting section (5b) to be inserted and installed; the mounting section (5b) is provided with a fixing nut (6) after passing downward through the mounting hole (4a); and the base plate (1) is provided with a clearance hole (1a) for tightening the fixing nut (6).

5. The gear ring bracket gear shaping tool according to claim 1, characterized in that: The positioning seat (4) is provided with a mounting countersunk hole (4c) for fixing the positioning seat on the base plate.

6. The gear ring bracket gear shaping tool according to claim 1, characterized in that: An anti-rotation plane (5c) is arranged at a position in the middle of the positioning shaft (5) for contacting the minimum inner diameter of the inner hole of the gear ring bracket.

7. The gear ring bracket gear shaping tool according to claim 1, characterized in that: The bottom plate (1) is provided with a mounting strip hole (1b) whose opening is connected to the edge of the bottom plate and is used for mounting the bottom plate.

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