A positioning device for gear hobbing of shaft parts

Abstract

The utility model belongs to the technical field of positioning device, concretely relates to a positioning device for hobbing of shaft parts, including first locating seat, the left end fixed connection of first locating seat has the mounting seat, the outside slide connection of first locating seat has the part, the inside slide connection of part has second locating seat, the right end fixed connection of second locating seat has the connecting seat, the first locating seat and second locating seat on together are provided with adjusting mechanism, the outside slide connection of connecting seat has the pressure seat, the pressure seat and part contact, the outside of connecting seat is connected with nut through screw thread, the utility model discloses through rotating square bar drive bidirectional screw cylinder rotation and first locating seat and second locating seat cooperation most threaded motion, make first locating seat and second locating seat between interval change, can support the part of different length to it, and its applicability is wider.

Description

Technical Field

[0001] This utility model relates to the field of positioning device technology, specifically a positioning device for gear hobbing of shaft parts. Background Technology

[0002] Utility model patent CN221695497U discloses an auxiliary positioning device for gear hobbing of long shaft parts, comprising: a base, a support plate, and a nut; the base includes a horizontal plate and a vertical plate that are perpendicular to each other; the horizontal plate of the base has multiple fixing holes and the base is mounted on a machine tool by screws; the upper end of the vertical plate of the base has a semi-circular notch on one side, and multiple screw holes are provided around the semi-circular notch; the support plate is a semi-circular plate, and an arc-shaped notch is provided at the center of the support plate; the support plate also has multiple through holes that match the screw holes; screws pass through the through holes and screw holes to mount the support plate on the vertical plate; the arc-shaped notch on the support plate is used to support long shaft parts.

[0003] With the rapid development of the machinery industry, the precision requirements for parts and components are becoming increasingly stringent, and the requirements for positioning devices on machine tools are also very strict. On existing gear hobbing machines, the machining process uses internal hole clearance positioning and external circle datum alignment. This results in unstable gear hobbing quality and a long alignment time, leading to low efficiency and high cost. At the same time, the overall length of the device is fixed, and the device can only clamp and limit shaft-type parts of roughly the same length, resulting in limited applicability. Utility Model Content

[0004] The purpose of this invention is to provide a positioning device for gear hobbing of shaft parts, which solves the above-mentioned problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning device for gear hobbing of shaft parts, comprising a first positioning seat, a mounting seat fixedly connected to the left end of the first positioning seat, a part slidably connected to the outer side of the first positioning seat, a second positioning seat slidably connected to the inside of the part, a connecting seat fixedly connected to the right end of the second positioning seat, an adjustment mechanism being provided on both the first and second positioning seats, a pressure seat slidably connected to the outer side of the connecting seat, the pressure seat contacting the part, a nut being threadedly connected to the outer side of the connecting seat, and a washer being movably connected to the outer side of the connecting seat.

[0006] Preferably, a conical seat is fixedly connected to the outer side of the first positioning seat, and the conical seat contacts the part. By providing the conical seat, the part is limited in position.

[0007] Preferably, one end of the washer contacts the nut, and the other end of the washer contacts the pressure seat. The washer limits the position of the pressure seat.

[0008] Preferably, the adjusting mechanism includes a bidirectional screw cylinder. The bidirectional screw cylinder is threadedly connected to the interior of the first positioning seat. The bidirectional screw cylinder and the second positioning seat are threadedly connected. A square rod is slidably connected inside the bidirectional screw cylinder. A guide rod is slidably connected to both the first and second positioning seats. A limit ring is fixedly connected to the outer side of the guide rod, and the limit ring is slidably connected to the part. By rotating the square rod, the bidirectional screw cylinder rotates, coordinating with the threaded movement of the first and second positioning seats, causing the distance between the first and second positioning seats to change. This allows the device to support parts of different lengths, broadening its applicability.

[0009] Preferably, a support ring is fixedly connected to the outer side of the square rod, and the support ring and the connecting seat are connected by a bearing. The support ring provides support for the square rod.

[0010] Preferably, a handle is fixedly connected to the right end of the square rod, and the handle contacts the connecting seat. The handle facilitates the rotation of the square rod.

[0011] Preferably, a knob is fixedly connected to the outer side of the bidirectional screw cylinder, and the knob is rotatably connected to the limiting ring. The limiting ring is limited by the knob.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model drives the bidirectional screw cylinder to rotate by rotating the square rod and the first positioning seat and the second positioning seat to cooperate in the threaded movement, so that the distance between the first positioning seat and the second positioning seat changes, thereby enabling the device to support parts of different lengths, and the device has a wider range of applications.

[0013] 2. This utility model, through the clamping action of the mounting base and the pressure base of the device, makes the clamping state of shaft parts on the machine tool more reasonable, eliminates the alignment error of the parts, improves the positioning accuracy of gear hobbing, and ensures the processing accuracy of subsequent processes of the parts. The positioning device for gear hobbing of shaft parts is accurate in positioning, and can improve the chamfering accuracy and production efficiency. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 is an enlarged view of section A in Figure 2 of this utility model.

[0016] Figure 3 is an enlarged view of section B in Figure 2 of this utility model.

[0017] In the diagram: 1. First positioning seat; 2. Mounting seat; 3. Conical seat; 4. Part; 5. Second positioning seat; 6. Connecting seat; 7. Adjusting mechanism; 8. Pressure seat; 9. Nut; 10. Washer; 71. Double-acting screw; 72. Square rod; 73. Support ring; 74. Handle; 75. Guide rod; 76. Limiting ring; 77. Knob. Detailed Implementation

[0018] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please refer to Figures 1-2. A positioning device for gear hobbing of shaft parts includes a first positioning seat 1. A mounting seat 2 is fixedly connected to the left end of the first positioning seat 1. A part 4 is slidably connected to the outer side of the first positioning seat 1. A conical seat 3 is fixedly connected to the outer side of the first positioning seat 1, and the conical seat 3 contacts the part 4. The conical seat 3 limits the position of the part 4. A second positioning seat 5 is slidably connected to the inside of the part 4. A connecting seat 6 is fixedly connected to the right end of the second positioning seat 5. An adjustment mechanism 7 is provided on both the first positioning seat 1 and the second positioning seat 5. A pressure seat 8 is slidably connected to the outer side of the connecting seat 6, and the pressure seat 8 contacts the part 4. A nut 9 is threadedly connected to the outer side of the connecting seat 6. A washer 10 is movably connected to the outer side of the connecting seat 6. One end of the washer 10 contacts the nut 9, and the other end of the washer 10 contacts the pressure seat 8. The washer 10 limits the position of the pressure seat 8.

[0020] Please refer to Figures 1-3. The adjusting mechanism 7 includes a bidirectional screw cylinder 71. The bidirectional screw cylinder 71 is threadedly connected to the inside of the first positioning seat 1. The bidirectional screw cylinder 71 and the second positioning seat 5 are threadedly connected. A square rod 72 is slidably connected inside the bidirectional screw cylinder 71. A support ring 73 is fixedly connected to the outside of the square rod 72. The support ring 73 and the connecting seat 6 are connected by a bearing. The support ring 73 supports the square rod 72. A handle 74 is fixedly connected to the right end of the square rod 72. The handle 74 contacts the connecting seat 6. The handle 74 facilitates the rotation of the square rod 72. A guide rod 75 is slidably connected to both the first positioning seat 1 and the second positioning seat 5. A limit ring 76 is fixedly connected to the outside of the guide rod 75. The limit ring 76 is slidably connected to part 4. A knob 77 is fixedly connected to the outside of the bidirectional screw cylinder 71. The knob 77 and the limit ring 76 are rotatably connected. The knob 77 limits the limit ring 76. By rotating the square rod 72... The bidirectional screw cylinder 71 rotates and engages with the first positioning seat 1 and the second positioning seat 5 in a threaded motion, causing the distance between the first positioning seat 1 and the second positioning seat 5 to change. This allows the device to support parts 4 of different lengths, making it more versatile.

[0021] The specific implementation process of this utility model is as follows: In use, according to the length of part 4, the square rod 72 is manually rotated by the handle 74. The square rod 72 drives the bidirectional screw cylinder 71 to rotate. The rotation of the bidirectional screw cylinder 71 and the first positioning seat 1 and the second positioning seat 5 make threaded movements, thereby changing the distance between the first positioning seat 1 and the second positioning seat 5. By rotating the square rod 72 to drive the bidirectional screw cylinder 71 to rotate and the first positioning seat 1 and the second positioning seat 5 to cooperate in the threaded movement, the distance between the first positioning seat 1 and the second positioning seat 5 changes, thereby enabling the device to support parts 4 of different lengths, and the device has a wider range of applicability. Then, part 4 is slid to the outside of the first positioning seat 1 and the second positioning seat 5, and then the pressure seat 8 is slid to the outside of the connecting seat 6, so that the pressure seat 8 and part 4 come into contact. Then, the washer 10 comes into contact with the pressure seat 8, and then the nut 9 and the connecting seat 6 are connected by threads, so that the nut 9 moves and comes into contact with the washer 10, so that the washer 10 comes into contact with the pressure seat 8, so that the pressure seat 8 presses part 4 tightly onto the mounting seat 2. Through the abutting action of the mounting seat 2 and the pressure seat 8 of this device, the clamping state of the shaft part 4 on the machine tool is more reasonable, eliminating the alignment error of part 4, improving the positioning accuracy of gear hobbing, and ensuring the machining accuracy of part 4 in subsequent processes. This positioning device for gear hobbing of shaft part 4 has accurate positioning, can improve chamfering accuracy and production efficiency.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning device for gear hobbing of shaft parts, comprising a first positioning seat (1), characterized in that: The left end of the first positioning seat (1) is fixedly connected to the mounting seat (2), the outer side of the first positioning seat (1) is slidably connected to the part (4), the inner side of the part (4) is slidably connected to the second positioning seat (5), the right end of the second positioning seat (5) is fixedly connected to the connecting seat (6), the first positioning seat (1) and the second positioning seat (5) are jointly provided with the adjustment mechanism (7), the outer side of the connecting seat (6) is slidably connected to the pressure seat (8), the pressure seat (8) is in contact with the part (4), the outer side of the connecting seat (6) is connected to the nut (9) by thread, and the outer side of the connecting seat (6) is movably connected to the gasket (10).

2. The positioning device for gear hobbing of shaft parts according to claim 1, characterized in that: A conical seat (3) is fixedly connected to the outer side of the first positioning seat (1), and the conical seat (3) is in contact with the part (4).

3. A positioning device for gear hobbing of shaft parts according to claim 1, characterized in that: One end of the gasket (10) is in contact with the nut (9), and the other end of the gasket (10) is in contact with the pressure seat (8).

4. A positioning device for gear hobbing of shaft parts according to claim 1, characterized in that: The adjustment mechanism (7) includes a bidirectional screw cylinder (71). The bidirectional screw cylinder (71) is threadedly connected inside the first positioning seat (1). The bidirectional screw cylinder (71) and the second positioning seat (5) are threadedly connected. A square rod (72) is slidably connected inside the bidirectional screw cylinder (71). A guide rod (75) is slidably connected inside the first positioning seat (1) and the second positioning seat (5). A limit ring (76) is fixedly connected to the outside of the guide rod (75). The limit ring (76) and the part (4) are slidably connected.

5. A positioning device for gear hobbing of shaft parts according to claim 4, characterized in that: A support ring (73) is fixedly connected to the outside of the square rod (72), and the support ring (73) and the connecting seat (6) are connected by a bearing.

6. A positioning device for gear hobbing of shaft parts according to claim 4, characterized in that: A handle (74) is fixedly connected to the right end of the square rod (72), and the handle (74) contacts the connecting seat (6).

7. A positioning device for gear hobbing of shaft parts according to claim 4, characterized in that: A knob (77) is fixedly connected to the outside of the bidirectional screw (71), and the knob (77) and the limiting ring (76) are rotatably connected.

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