A pinion gear jig device

Abstract

The utility model discloses a gear shaping fixture device, including the clamping body and the positioning piece, be equipped with annular protruding portion on the clamping body, the inside of protruding portion forms part positioning hole, be equipped with the positioning channel of radial distribution on protruding portion and the outside of positioning channel is equipped with the alignment plane, the axis of positioning channel with alignment plane vertical, the positioning piece is worn in the positioning channel. The utility model discloses a gear shaping fixture device can efficiently complete the fixing and accurate angular orientation of part on the gear shaping machine, and support the common of three different parts of the same type, improve processing efficiency and versatility.

Description

Technical Field

[0001] This utility model relates to tooling for fixing parts in machining, and more particularly to a gear-shaping clamping device. Background Technology

[0002] In gear shaping, traditional gear shaping fixtures are usually customized for single parts. Different specifications of the same type of parts require different fixtures, resulting in long changeover times and poor versatility. For parts with angular relationships, to ensure uniform machining allowance on both sides of the gear groove, two rollers are usually fixed inside the gear groove, and the part is aligned by using a dial indicator to level it. However, this method has low alignment efficiency and poor quality stability. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a gear hobbing fixture device that can achieve accurate angular positioning and is conducive to improving machining accuracy.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A gear-shaping clamping device includes a clamping body and a positioning element. The clamping body has an annular protrusion, and a part positioning hole is formed on the inner side of the protrusion. The protrusion has a positioning channel distributed radially, and an alignment plane is provided on the outer side of the positioning channel. The axis of the positioning channel is perpendicular to the alignment plane, and the positioning element passes through the positioning channel.

[0005] As a further improvement to the above technical solution: the positioning channel has a U-shaped structure with the opening facing upwards.

[0006] As a further improvement to the above technical solution: the positioning element is a positioning pin.

[0007] As a further improvement to the above technical solution: the diameter of the end of the positioning pin located on the outer side of the protrusion is larger than the diameter of the end that penetrates into the inner side of the protrusion.

[0008] As a further improvement to the above technical solution: the end of the positioning pin located on the outer side of the protrusion is provided with anti-slip texture.

[0009] As a further improvement to the above technical solution: an adjusting pad is provided in the part positioning hole, and at least one set of part clamping components is provided on the outside of the protrusion of the clamp body, and the clamping height of the part clamping components is adjustable.

[0010] As a further improvement to the above technical solution: the part clamping assembly includes a clamping block, an adjusting member for adjusting the height of the clamping block, and a locking member for locking the clamping block. One end of the clamping block abuts against the fixed surface of the part, and the other end abuts against the adjusting member. The locking member is located between the protrusion and the adjusting member.

[0011] As a further improvement to the above technical solution: the locking member is a locking bolt, and the locking bolt is provided with a first locking nut for locking the pressing block. The first locking nut abuts against the pressing block, and an elastic member is clamped between the pressing block and the clamping body.

[0012] As a further improvement to the above technical solution: the clamping block is provided with a waist-shaped hole and a guide groove arranged radially along the protrusion, the locking member passes through the waist-shaped hole, and one end of the adjusting member is positioned in the guide groove.

[0013] As a further improvement to the above technical solution: the adjusting component is an adjusting screw, and the adjusting screw is provided with a second locking nut that abuts against the clamping body.

[0014] Compared with the prior art, the advantages of this utility model are: The gear-shaping fixture device disclosed in this utility model involves aligning the outer circumference of the part with the positioning hole on the inner side of the protrusion and inserting it vertically. Then, the part is rotated so that the hole on the side of the part aligns with the positioning channel on the protrusion. Finally, the positioning element is inserted horizontally along the positioning channel and inserted into the hole on the side of the part. This prevents the part from rotating within the positioning hole during machining. Since the alignment plane is perpendicular to the axis of the positioning channel, the target tooth groove of the part is aligned with the center line of the positioning element. Correspondingly, the target tooth groove is aligned with the center line of the hole on the side of the part, thereby achieving accurate angular positioning and improving machining accuracy.

[0015] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the tooth-shaping clamp device of this utility model. Figure 2 This is a top view of the tooth-shaping clamp device of this utility model.

[0017] Figure 3 This is a cross-sectional structural schematic diagram of the tooth-shaping clamp device of this utility model.

[0018] The labels in the diagram represent: 1. Clamp body; 11. Protrusion; 12. Part positioning hole; 13. Positioning channel; 14. Alignment plane; 2. Positioning component; 3. Adjusting pad; 4. Part clamping assembly; 41. Clamping block; 411. Waist-shaped hole; 412. Guide groove; 42. Adjusting component; 43. Locking component; 44. First locking nut; 45. Elastic component; 46. Second locking nut; 5. Part; 51. Fixing surface. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "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 simplifying the description, 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.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Figures 1 to 3 This illustration shows an embodiment of the gear-shaping clamping device of the present invention. The clamping device of this embodiment includes a clamping body 1 and a positioning member 2. The clamping body 1 has an annular protrusion 11, with a part positioning hole 12 formed on the inner side of the protrusion 11. The protrusion 11 has radially distributed positioning channels 13, and an alignment plane 14 is provided on the outer side of the positioning channels 13. The axis of the positioning channels 13 is perpendicular to the alignment plane 14. The positioning member 2 passes through the positioning channels 13. Preferably, the clamping body 1 has a disc structure with multiple U-shaped clamping grooves evenly distributed circumferentially, facilitating vertical installation on a machine tool and fixing via bolts and nuts on the machine tool. This ensures reliable fixing and convenient assembly and disassembly.

[0024] In this embodiment, the gear-shaping fixture is used by aligning the outer circumference of part 5 with the part positioning hole 12 on the inner side of the protrusion 11 and inserting it vertically. Then, part 5 is rotated so that the hole on the side of part 2 is aligned with the positioning channel 13 on the protrusion 11. Finally, the positioning member 2 is inserted horizontally along the positioning channel 13 and inserted into the hole on the side of part 5. This prevents part 5 from rotating in the part positioning hole 12 during processing. Since the alignment plane 14 is perpendicular to the axis of the positioning channel 13, the target tooth groove of part 5 is aligned with the center line of the positioning member 2. Correspondingly, the target tooth groove is aligned with the center line of the hole on the side of part 5, thereby achieving accurate angular positioning and improving processing accuracy.

[0025] Furthermore, in this embodiment, the positioning channel 13 is a U-shaped structure with the opening facing upwards, that is, the positioning channel 13 is a U-shaped channel, which facilitates the positioning component 2 to pass through and also facilitates observation of whether the hole on the side of the component 5 is aligned with the positioning channel 13.

[0026] Of course, in other embodiments, it can also be a circular structure.

[0027] In a preferred embodiment, the positioning element 2 is a positioning pin, which has a simple structure and is easy to operate.

[0028] Furthermore, in this embodiment, the diameter of the end of the positioning pin located on the outer side of the protrusion 11 is larger than the diameter of the end that penetrates the inner side of the protrusion 11. The larger diameter of the end of the positioning pin located on the outer side of the protrusion 11 facilitates operation, while the smaller diameter of the end that penetrates the inner side of the protrusion 11 facilitates insertion into the hole on the side of the part 5 for positioning.

[0029] Furthermore, in this embodiment, the end of the positioning pin located on the outside of the protrusion 11 is provided with anti-slip texture (not shown in the figure, for example, it can be a knurled texture), which helps to increase friction and prevent slippage when manually operating the positioning part 2.

[0030] See details Figure 3 In this embodiment, an adjusting pad 3 is provided inside the part positioning hole 12. Two sets of part clamping assemblies 4 are provided on the outer side of the protrusion 11 of the clamping body 1. The two sets of part clamping assemblies 4 are symmetrically distributed on both sides of the protrusion 11, and the clamping height of the part clamping assemblies 4 is adjustable. A suitable adjusting pad 3 can be selected based on the height of the angular positioning hole on the side of the part 5 and the height of the fixing surface 51 to raise the height of the part 5, compensating for the height differences of different parts 5, so that parts 5 of different specifications can meet the requirements of both clamping and angular positioning. The part clamping assembly 4 can also adjust its own clamping height according to the height of the fixing surface 51 of the part 5, realizing the common clamping of parts 5 of different specifications, enabling rapid production changeover, reducing changeover time, and improving processing efficiency.

[0031] Furthermore, in this embodiment, the part clamping assembly 4 includes a clamping block 41, an adjusting member 42 for adjusting the height of the clamping block 41, and a locking member 43 for locking the clamping block 41. One end of the clamping block 41 abuts against the fixing surface 51 of the part 5, and the other end abuts against the adjusting member 42. The locking member 43 is located between the protrusion 11 and the adjusting member 42. After determining the height of the adjusting pad 3, the height of the clamping block 41 is adjusted using the adjusting member 42, and finally locked by the locking member 43 to prevent the part 5 from shifting during processing. Furthermore, in this embodiment, the locking member 43 is a locking bolt, and the locking bolt is provided with a first locking nut 44 for locking the clamping block 41. The first locking nut 44 abuts against the clamping block 41, and an elastic member 45 is clamped between the clamping block 41 and the clamping body 1. By tightening the first locking nut 44, the clamping block 41 can be effectively clamped, and the structure is simple and easy to disassemble and assemble. The reaction force of the adjusting member 42 and the fixing surface 51 acting on both ends of the clamping block 41 helps to keep the clamping block 41 stable. When the part 5 is removed, the adjusting member 42 and the elastic member 45 can provide support for the clamping block 41, preventing the clamping block 41 from falling downwards, making it more convenient to use. Preferably, the elastic member 45 is a helical spring, which is sleeved on the outer periphery of the locking bolt. A washer is provided between the helical spring and the clamping block 41 so that the elastic force of the helical spring acts evenly on the clamping block 41. Of course, in other embodiments, the elastic member 45 can also be elastic rubber, etc.

[0032] Furthermore, in this embodiment, the clamping block 41 is provided with an oblong hole 411 and a guide groove 412 arranged radially along the protrusion 11. The locking member 43 passes through the oblong hole 411, and one end of the adjusting member 42 is positioned in the guide groove 412. After loosening the first locking nut 44, the clamping block 41 can be moved radially along the protrusion 11, causing the clamping block 41 to separate from the fixing surface 51, thereby removing the part 5. The adjusting member 42 cooperates with the guide groove 412 to provide a guiding function, preventing the clamping block 41 from shifting. The structure is reasonable and effective.

[0033] Furthermore, in this embodiment, the adjusting member 42 is an adjusting screw, and the adjusting screw is provided with a second locking nut 46 that abuts against the clamp body 1. By rotating the adjusting screw, the height of its upper end can be adjusted. After adjustment, the second locking nut 46 is tightened to prevent the adjusting screw from loosening. The structure is reliable and the operation is convenient.

[0034] The method of using this utility model tooth-shaping clamp device is as follows: Fixture 1 installation: Vertically install the three evenly distributed U-shaped grooves on the outer circle of fixture 1 onto the machine tool worktable and align them with the bolts. Tighten the nuts to complete the fixing of fixture 1 to the machine tool.

[0035] Adjusting pad 3 installation: Based on the height of the fixing surface 51 of the machined part 5 and the angular positioning hole (dimension is...) φ 5) Select an appropriate thickness of shim adjustment pad 3 based on the height. Then align the outer circle of the adjustment pad 3 with the part positioning hole 12 and insert it vertically into the bottom of the part positioning hole 12. Part 5 Installation and Angular Positioning: Align the outer circumference of part 5 with the positioning hole 12, and vertically insert it into the positioning hole 12, ensuring that the support surface at the bottom of part 5 is completely in contact with the upper surface of the adjusting pad 3. Then rotate part 5 to ensure that the support surface on part 5 is in contact with the upper surface of the adjusting pad 3. φ Align the angular positioning hole and the U-shaped positioning channel 13 on the side of the protrusion 11. Then, insert the positioning member 2 horizontally along the positioning channel 13 on the side to ensure that the positioning member 2 passes through the positioning channel 13 and the angular positioning hole on the side of the part 5 at the same time to achieve angular positioning. At this time, the target tooth groove of the part 5 is aligned with the center line of the positioning member 2.

[0036] Fixing part 5: Adjust the adjusting part 42 to a suitable height, at which point it is basically the same height as the fixing surface 51 of part 5. Then tighten the first locking nut 46, and then install the clamping block 41 in a suitable position. Initially tighten the first locking nut 44 to ensure that part 5 is not easy to loosen during the alignment process.

[0037] Alignment of part 5: Alignment is performed by using the outer circle of part 5 and the alignment plane 14 on the side of the protrusion 11. After alignment is completed, the first locking nut 44 is fully tightened to ensure that part 5 does not shift during the processing.

[0038] Processing and replacing parts 5: When the gear hobbing machine starts working and processes parts of the same type but different specifications, it is only necessary to replace the corresponding specification adjustment shim 3 and repeat the above steps. There is no need to disassemble the entire gear hobbing fixture device.

[0039] The principle of sharing multiple parts 5 (three types in this embodiment): The structural differences of the three parts are mainly reflected in the differences in height and local non-critical dimensions, but their positioning reference and angular positioning requirements are consistent. By replacing the adjustment pads 3 of different heights, the heights of the three parts 5 can be adapted; the position design of the positioning pin is compatible with the angular positioning requirements of the three parts 5, so there is no need to adjust the clamp body 1 and the positioning pin to achieve sharing.

[0040] The gear hobbing fixture of this invention can efficiently fix part 5 on the gear hobbing machine and accurately position it in an angular direction, and supports the use of three different parts of the same type, thereby improving processing efficiency and versatility.

[0041] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A gear-shaping clamping device, characterized in that: The fixture includes a clamping body (1) and a positioning element (2). The clamping body (1) has an annular protrusion (11). The inner side of the protrusion (11) forms a part positioning hole (12). The protrusion (11) has a positioning channel (13) distributed radially, and the outer side of the positioning channel (13) has an alignment plane (14). The axis of the positioning channel (13) is perpendicular to the alignment plane (14). The positioning element (2) passes through the positioning channel (13).

2. The gear-shaping clamping device according to claim 1, characterized in that: The positioning channel (13) has a U-shaped structure with the opening facing upwards.

3. The gear-shaping clamping device according to claim 1, characterized in that: The positioning component (2) is a positioning pin.

4. The gear-shaping clamping device according to claim 3, characterized in that: The diameter of the end of the positioning pin located on the outside of the protrusion (11) is greater than the diameter of the end that passes through the inside of the protrusion (11).

5. The gear-shaping clamping device according to claim 4, characterized in that: The positioning pin has anti-slip texture at one end located on the outside of the protrusion (11).

6. The gear-shaping clamping device according to any one of claims 1 to 5, characterized in that: The part positioning hole (12) is provided with an adjustment pad (3), and the clamping body (1) is provided with at least one set of part pressing components (4) on the outside of the protrusion (11). The pressing height of the part pressing components (4) is adjustable.

7. The gear-shaping clamping device according to claim 6, characterized in that: The part clamping assembly (4) includes a clamping block (41), an adjusting member (42) for adjusting the height of the clamping block (41), and a locking member (43) for locking the clamping block (41). One end of the clamping block (41) abuts against the fixing surface (51) of the part (5), and the other end abuts against the adjusting member (42). The locking member (43) is located between the protrusion (11) and the adjusting member (42).

8. The gear-shaping clamping device according to claim 7, characterized in that: The locking member (43) is a locking bolt, and the locking bolt is provided with a first locking nut (44) for locking the clamping block (41). The first locking nut (44) abuts against the clamping block (41), and an elastic member (45) is clamped between the clamping block (41) and the clamping body (1).

9. The gear-shaping clamping device according to claim 7, characterized in that: The clamping block (41) is provided with a waist-shaped hole (411) and a guide groove (412) arranged radially along the protrusion (11). The locking member (43) passes through the waist-shaped hole (411), and one end of the adjusting member (42) is positioned in the guide groove (412).

10. The gear-shaping clamping device according to claim 7, characterized in that: The adjusting component (42) is an adjusting screw, and the adjusting screw is provided with a second locking nut (46) that abuts against the clamping body (1).

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