A positioning device for vertical gear grinding of a large gear wheel

Abstract

The utility model relates to gear grinding processing equipment technical field provides a kind of positioning device of large gear vertical gear grinding, including casing, the inside of the casing is equipped with sealing groove, the inside of the casing is equipped with guide groove, the inside of the casing is equipped with positioning mechanism, the positioning mechanism includes the drive motor of fixed mounting in casing inner wall, the output shaft of the drive motor is fixedly connected with first rotary lever through shaft coupling. The utility model can make the first bevel gear rotation of first rotary lever one end fixed connection by starting drive motor, make second bevel gear rotate, to make chuck along casing rotation along with the rotation of chuck, can make the sliding of supporting rod along arc-shaped groove, drive three supporting rods along guide groove to the sliding of center, make three positioning clamps to gear shaft extrude, play the effect of being convenient for to the clamping positioning of gear shaft of different diameters.

Description

Technical Field

[0001] This utility model relates to the technical field of gear grinding equipment, and in particular to a positioning device for vertical gear grinding. Background Technology

[0002] As a core component for realizing motion and power transmission, the precision of gears directly determines the transmission efficiency, operational stability, and service life of equipment. Among these, the machining precision requirements for large gears are particularly stringent. Gear grinding, as a key process in gear finishing, is a crucial link in ensuring the final precision of large gears (including geometric tolerances such as pitch deviation, profile deviation, and helix deviation). The reliability and precision of the positioning device are prerequisites for determining the quality of gear grinding.

[0003] To address this, patent CN216575912U discloses a positioning fixture for gear grinding, comprising: a positioning seat mounted on a machine tool worktable; a mounting table fixed to the positioning seat by screws; a tapered mandrel, comprising a mandrel portion and a centering cone, the tapered mandrel being movably connected to a guide hole in the mounting table, and having a limiting step portion at the bottom of the tapered mandrel matching the stepped hole, and a rectangular spring sleeved around the tapered mandrel; a support body fixed to the mounting table by screws, with a push sleeve slidably connected to the inner wall of the support body, the push sleeve having a limiting snap-fit ​​portion at the bottom matching the limiting hole; and a support plate fixed to the bottom of the mounting table. This positioning fixture has a simple structure, can quickly position and center gears, and maintains the stability of the gear position during processing.

[0004] The existing technical solutions mentioned above have the following drawbacks: when in use, it is inconvenient to stably clamp and position gear shafts of different diameters, which causes the large gear to deviate during gear grinding, thereby affecting the accuracy of gear grinding. Utility Model Content

[0005] The purpose of this invention is to provide a positioning device for vertical gear grinding of large gears, so as to solve the defect of existing positioning devices for vertical gear grinding of large gears being inconvenient to stably clamp and position gear shafts of different diameters.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a positioning device for vertical gear grinding of a large gear, including a housing;

[0007] The casing has a sealing groove inside, a guide groove inside, and a positioning mechanism installed inside.

[0008] The positioning mechanism includes a drive motor fixedly installed on the inner wall of the housing. The output shaft of the drive motor is fixedly connected to a first rotating rod via a coupling. One end of the first rotating rod is fixedly connected to a first bevel gear. A second bevel gear is movably connected to the outer wall of the first bevel gear. A second rotating rod is fixedly connected to the inner wall of the second bevel gear. One end of the second rotating rod is fixedly connected to a chuck.

[0009] Preferably, a sealing ring is fixedly connected to the outer wall of the chuck, and an arc-shaped groove is formed inside the chuck, with a receiving rod movably connected inside the arc-shaped groove.

[0010] Preferably, the first bevel gear and the second bevel gear are meshed together, and the second bevel gear forms a rotating structure with the housing through the second rotating rod, which can make the first bevel gear rotate to drive the second bevel gear to rotate.

[0011] Preferably, the chuck forms a rotating structure with the housing via the second rotating rod, and the sealing ring forms a rotating structure with the housing via the sealing groove, which allows the chuck to rotate along the housing.

[0012] Preferably, the chuck forms a sliding structure with the receiving rod via an arc-shaped groove, and the receiving rod forms a sliding structure with the housing via a guide groove. The guide grooves are arranged in a ring around the central axis of the housing.

[0013] Preferably, a positioning clamp is fixedly connected to the top end of the receiving rod, a rotating shaft is movably installed on the outer wall of the positioning clamp, an auxiliary clamping plate is installed on the outer wall of the rotating shaft, a movable rod is fixedly connected to one side of the auxiliary clamping plate, a return spring is sleeved on the outer wall of the movable rod, and a sleeve block is fixedly connected to the outer wall of the positioning clamp.

[0014] Preferably, the auxiliary clamping plate forms a rotating structure with the positioning clamp via a rotating shaft, and the movable rod forms a sliding structure with the sleeve block.

[0015] The positioning device for vertical gear grinding provided by this utility model has the following advantages:

[0016] With the set housing, sealing groove, guide groove and positioning mechanism, by starting the drive motor, the first bevel gear fixedly connected to one end of the first rotating rod can be rotated, and the second bevel gear can be rotated, so that the chuck fixedly connected to one end of the second rotating rod can rotate along the housing. As the chuck rotates, the receiving rod can slide along the arc groove, and drive the three receiving rods to slide towards the center along the guide groove, so that the three positioning clamps can squeeze the gear shaft, which can facilitate the clamping and positioning of gear shafts of different diameters, thus facilitating more stable grinding of large gears;

[0017] Furthermore, the combined action of the sealing ring and the sealing groove can improve the stability and sealing performance of the chuck rotating within the housing.

[0018] Furthermore, since the size of the first bevel gear is smaller than that of the second bevel gear, the rotational stability of the second bevel gear can be improved, thereby further enhancing the stability of positioning the large gear.

[0019] With the positioning mechanism in place, as the positioning clamp is pressed against the outer wall of the gear shaft, the gear shaft can press against the auxiliary clamping plate, causing the auxiliary clamping plate to flip along the positioning clamp. This causes the movable rod to slide along the sleeve block. Under the action of the return spring, the two auxiliary clamping plates can assist in clamping the gear shaft, further improving the stability of positioning the large gear.

[0020] Furthermore, the rotation of the auxiliary clamp and the positioning clamp allows the auxiliary clamp to adaptively adjust according to the diameter difference of the gear shaft. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a front view structural diagram of the positioning mechanism of this utility model;

[0023] Figure 3 This is a three-dimensional sectional view of the casing structure of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the chuck of this utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the positioning clamp of this utility model.

[0026] The reference numerals in the figure are as follows: 1. Sleeve; 2. Sealing groove; 3. Guide groove; 4. Positioning mechanism; 41. Drive motor; 42. First rotating rod; 43. First bevel gear; 44. Second bevel gear; 45. Second rotating rod; 46. Chuck; 47. Sealing ring; 48. Arc groove; 49. Supporting rod; 491. Positioning clamp; 492. Rotating shaft; 493. Auxiliary clamping plate; 494. Movable rod; 495. Return spring; 496. Sleeve block. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-5The present invention provides a positioning device for a large gear vertical grinding, comprising a housing 1.

[0029] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a sealing groove 2 and a guide groove 3 are provided inside the casing 1. A positioning mechanism 4 is installed inside the casing 1. The positioning mechanism 4 includes a drive motor 41 fixedly installed on the inner wall of the casing 1. The output shaft of the drive motor 41 is fixedly connected to a first rotating rod 42 via a coupling. A first bevel gear 43 is fixedly connected to one end of the first rotating rod 42. A second bevel gear 44 is movably connected to the outer wall of the first bevel gear 43. A second rotating rod 45 is fixedly connected to the inner wall of the second bevel gear 44. A chuck 46 is fixedly connected to one end of the second rotating rod 45. A sealing clip is fixedly connected to the outer wall of the chuck 46. The ring 47 and chuck 46 have an arc-shaped groove 48 inside. A receiving rod 49 is movably connected inside the arc-shaped groove 48. The first bevel gear 43 and the second bevel gear 44 are meshed and connected. The second bevel gear 44 forms a rotating structure with the housing 1 through the second rotating rod 45. The chuck 46 forms a rotating structure with the housing 1 through the second rotating rod 45. The sealing ring 47 forms a rotating structure with the housing 1 through the sealing groove 2. The chuck 46 forms a sliding structure with the receiving rod 49 through the arc-shaped groove 48. The receiving rod 49 forms a sliding structure with the housing 1 through the guide groove 3. The guide groove 3 is arranged in a ring around the central axis of the housing 1.

[0030] By placing the gear shaft of the large gear on one side of the housing 1 and starting the drive motor 41, the first bevel gear 43, which is fixedly connected to one end of the first rotating rod 42, can rotate. Since the first bevel gear 43 is meshed with the second bevel gear 44, the second bevel gear 44 can rotate, thereby causing the chuck 46, which is fixedly connected to one end of the second rotating rod 45, to rotate along the housing 1, driving the sealing ring 47 to rotate in the sealing groove 2. As the chuck 46 rotates, under the action of the guide groove 3, the receiving rod 49 can slide along the arc groove 48, driving the three receiving rods 49 to slide towards the center along the guide groove 3, so that the three positioning clamps 491 clamp and limit the gear shaft.

[0031] Reference Figure 4 and Figure 5 As shown, a positioning clamp 491 is fixedly connected to the top of the receiving rod 49. The inner wall of the positioning clamp 491 is anti-slip. A rotating shaft 492 is movably installed on the outer wall of the positioning clamp 491. An auxiliary clamping plate 493 is installed on the outer wall of the rotating shaft 492. A movable rod 494 is fixedly connected to one side of the auxiliary clamping plate 493. A return spring 495 is sleeved on the outer wall of the movable rod 494. A sleeve block 496 is fixedly connected to the outer wall of the positioning clamp 491. The auxiliary clamping plate 493 and the positioning clamp 491 form a rotating structure through the rotating shaft 492. The movable rod 494 and the sleeve block 496 form a sliding structure.

[0032] As the positioning clamp 491 presses against the outer wall of the gear shaft, the gear shaft can press against the auxiliary clamp 493. Under the action of the rotating shaft 492, the auxiliary clamp 493 can be rotated along the positioning clamp 491, causing the movable rod 494 to slide along the sleeve block 496. Under the action of the return spring 495, the two auxiliary clamps 493 can assist in clamping the gear shaft.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A positioning device for vertical gear grinding of a large gear, comprising a housing (1); Its features are: The casing (1) has a sealing groove (2) inside, a guide groove (3) inside, and a positioning mechanism (4) installed inside. The positioning mechanism (4) includes a drive motor (41) fixedly installed on the inner wall of the housing (1). The output shaft of the drive motor (41) is fixedly connected to a first rotating rod (42) via a coupling. One end of the first rotating rod (42) is fixedly connected to a first bevel gear (43). The outer wall of the first bevel gear (43) is movably connected to a second bevel gear (44). The inner wall of the second bevel gear (44) is fixedly connected to a second rotating rod (45). One end of the second rotating rod (45) is fixedly connected to a chuck (46).

2. The positioning device for vertical gear grinding of a large gear according to claim 1, characterized in that: A sealing ring (47) is fixedly connected to the outer wall of the chuck (46), and an arc groove (48) is opened inside the chuck (46). A receiving rod (49) is movably connected inside the arc groove (48).

3. The positioning device for vertical gear grinding of a large gear according to claim 1, characterized in that: The first bevel gear (43) is meshed with the second bevel gear (44), and the second bevel gear (44) forms a rotating structure with the housing (1) through the second rotating rod (45).

4. The positioning device for vertical gear grinding of a large gear according to claim 2, characterized in that: The chuck (46) forms a rotating structure with the housing (1) through the second rotating rod (45), and the sealing ring (47) forms a rotating structure with the housing (1) through the sealing groove (2).

5. The positioning device for vertical gear grinding of a large gear according to claim 2, characterized in that: The chuck (46) forms a sliding structure with the receiving rod (49) through the arc groove (48), and the receiving rod (49) forms a sliding structure with the housing (1) through the guide groove (3). The guide groove (3) is arranged in a ring around the central axis of the housing (1).

6. The positioning device for vertical gear grinding of a large gear according to claim 2, characterized in that: A positioning clamp (491) is fixedly connected to the top of the receiving rod (49). A rotating shaft (492) is movably installed on the outer wall of the positioning clamp (491). An auxiliary clamp plate (493) is installed on the outer wall of the rotating shaft (492). A movable rod (494) is fixedly connected to one side of the auxiliary clamp plate (493). A return spring (495) is sleeved on the outer wall of the movable rod (494). A sleeve block (496) is fixedly connected to the outer wall of the positioning clamp (491).

7. The positioning device for vertical gear grinding of a large gear according to claim 6, characterized in that: The auxiliary clamp (493) forms a rotating structure with the positioning clamp (491) via the rotating shaft (492), and the movable rod (494) forms a sliding structure with the sleeve block (496).

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