Device for quickly determining shafting boring center circle

Abstract

The utility model discloses a device for rapidly determining a shafting boring center circle, belongs to the technical field of shafting boring, and solves the problem that an existing tool is inconvenient to adjust. The light target comprises a light target body and an extrusion sleeve, a conical surface is arranged at one end of the extrusion sleeve, internal threads are arranged on the inner wall of the extrusion sleeve, an annular groove is formed in the light target body on the periphery of the target center, external threads are arranged on the side wall, close to the center of the light target body, of the annular groove, and one end of the conical surface of the extrusion sleeve is inserted into the annular groove. An ejector rod is inserted into each sliding groove in a sliding mode, the bottom of each ejector rod makes contact with the conical surface of the extrusion sleeve, an ejector plate is arranged at the top of each ejector rod, a mounting groove extending to the inner wall of the annular groove in the radial direction is formed in the portion, on the periphery of each ejector rod, of the light target body, and a limiting block is arranged on the lower portion of each ejector rod; and the limiting block is connected with the mounting groove in a sliding manner. According to the device, rapid adjustment can be achieved, and the working efficiency and the centering precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft boring, and more particularly to a device for quickly determining the center circle of a shaft boring. Background Art

[0002] The quality of shaft alignment will affect the load distribution of each bearing slot. Poor alignment will produce periodic alternating forces, which will directly affect the smooth operation of the unit and the service life of the equipment, and restrict the improvement of system accuracy and work efficiency. In the shaft boring process, when the center line of the shaft is laser aligned, a tool is generally used to quickly determine the center circle of the shaft boring. As disclosed in the applicant's prior application, publication number: CN112605437B, a method for quickly determining the center circle of the shaft boring is disclosed, including: arranging multiple radially extending fixings on the periphery of the light target body; arranging a detachable bull's eye at the center of the light target body; placing the light target body in the shaft hub, and making multiple fixings contact the inner wall of the shaft hub at the same time to fix the light target body; hitting the center point of the shaft on the bull's eye with a laser; tapping the laser point on the bull's eye on the sample punch to obtain a sample punch; and drawing the center circle of the shaft boring through the sample punch with a compass. The present invention arranges a fixing piece and a bull's eye on a light target body, hits the center point of the shaft system on the bull's eye with a laser, taps the sample punch at the laser point to obtain a sample punch hole, and then uses a compass to quickly draw the boring center circle of the shaft system through the sample punch hole. The operation is simple, efficient and precise.

[0003] The existing tooling is to determine the center circle of the shaft boring by adjusting the light target with screws. However, there are usually multiple screws. During the adjustment process, multiple screws need to be adjusted, which is troublesome to operate. If you are not careful, it is easy to cause eccentricity, which in turn affects the centering accuracy.

[0004] Therefore, it is urgent to develop and design a new device for quickly determining the center circle of the shaft boring to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art. The purpose of the present invention is to provide a device for quickly determining the center circle of a shaft boring hole, which can achieve rapid adjustment, improve work efficiency and centering accuracy.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a device for quickly determining the center circle of a shaft boring hole, comprising a light target body, a bull's eye detachably mounted at the center of the light target body, and an extrusion sleeve, one end of the extrusion sleeve being provided with a tapered surface, the inner wall of the extrusion sleeve being provided with an internal thread, an annular groove being provided on the light target body around the bull's eye, an external thread being provided on one side wall of the annular groove close to the center of the light target body, one end of the tapered surface of the extrusion sleeve being inserted into the annular groove, and the extrusion sleeve being rotatably mounted in the annular groove through the cooperation of the internal thread and the external thread; the extrusion sleeve The outer wall is evenly provided with a plurality of sliding grooves extending radially to the inner wall of the annular groove, and a push rod is slidably inserted in each of the sliding grooves, and the bottom of each push rod is in contact with the conical surface of the extrusion sleeve, and a top plate is provided on the top of each push rod. A mounting groove extending radially to the inner wall of the annular groove is provided in the light target body outside each push rod, and a limit block is provided at the lower part of the push rod, and the limit block is slidably connected to the mounting groove, and a reset spring is provided in the mounting groove, and the reset spring is sleeved on the push rod, and the two ends of the reset spring are respectively connected to the groove top and the limit block of the mounting groove.

[0007] As a further improvement, a plurality of thread grooves are provided at the other end of the extrusion sleeve, and the plurality of thread grooves are evenly distributed along the circumference of the extrusion sleeve.

[0008] Furthermore, a ball head is provided at the bottom of the push rod, and the ball head contacts the conical surface of the extrusion sleeve.

[0009] Furthermore, an annular plate is provided at the end with the smallest diameter of the conical surface, and the height of the annular plate is greater than the diameter of the ball head.

[0010] Furthermore, the top plate is a curved plate.

[0011] Beneficial effects

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The device of the utility model is connected with an extrusion sleeve by a thread on one side of the light target body. When in use, the entire device is placed in the shaft hub, and then the extrusion sleeve is rotated. The conical surface of the extrusion sleeve is used to simultaneously squeeze multiple push rods, so that the multiple push rods move radially outward at the same time, thereby making the multiple push plates fit on the inner wall of the shaft hub at the same time, thereby achieving the fixation of the light target body and the center of the target. The extrusion sleeve can simultaneously link the multiple push plates to simultaneously push against the inner wall of the shaft hub, and the fixation can be achieved by one adjustment. It can achieve rapid adjustment, improve work efficiency and centering accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure at point A in the middle;

[0016] Figure 3 This is a schematic diagram of the main cross-sectional structure of the extrusion sleeve in the utility model;

[0017] Figure 4 This is a side structural diagram of the extrusion sleeve in the present utility model;

[0018] Figure 5 This is a side view structural diagram of the optical target body of the present invention;

[0019] Figure 6 It is a side view structural diagram of the utility model when it is used.

[0020] Among them: 1-target body, 2-target center, 3-extrusion sleeve, 4-conical surface, 5-annular groove, 6-top rod, 7-top plate, 8-mounting groove, 9-limit block, 10-reset spring, 11-thread groove, 12-ball head, 13-annular plate, 14-hub. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0022] See Figure 1-6The utility model provides a device for quickly determining the center circle of a shaft boring, comprising a light target body 1, a bull's eye 2 being detachably mounted at the center of the light target body 1, specifically, the bull's eye 2 can be mounted on the light target body 1 by interference fit, or can be fastened by screws. The device also comprises an extrusion sleeve 3, one end of the extrusion sleeve 3 is provided with a tapered surface 4, the diameter of the tapered surface 4 increases from one end surface of the extrusion sleeve 3 to the other end surface, an internal thread is provided on the inner wall of the extrusion sleeve 3, an annular groove 5 is provided on the light target body 1 around the bull's eye 2, the cross-sectional width of the annular groove 5 is greater than or equal to the cross-sectional width of the extrusion sleeve 3, an external thread is provided on one side wall of the annular groove 5 close to the center of the light target body 1, the external thread is adapted to the internal thread of the extrusion sleeve 3, one end of the tapered surface 4 of the extrusion sleeve 3 is inserted into the annular groove 5, and the extrusion sleeve 3 is rotatably mounted in the annular groove 5 by the cooperation of the internal thread and the external thread; the outer wall of the extrusion sleeve 3 is provided with an internal thread. There are multiple sliding grooves evenly distributed, which extend radially to the inner wall of the annular groove 5. A push rod 6 is slidably inserted in each sliding groove. The bottom of each push rod 6 is in contact with the conical surface 4 of the extrusion sleeve 3. A top plate 7 is provided on the top of each push rod 6. A mounting groove 8 extending radially to the inner wall of the annular groove 5 is provided in the light target body 1 outside each push rod 6. The mounting groove 8 does not penetrate the outer wall of the light target body 1. A limit block 9 is provided at the lower part of the push rod 6. The limit block 9 is slidably connected to the mounting groove 8. A reset spring 10 is provided in the mounting groove 8. The reset spring 10 is sleeved on the push rod 6, and the two ends of the reset spring 10 are respectively connected to the groove top of the mounting groove 8 and the limit block 9.

[0023] The device of the utility model is connected to the extrusion sleeve 3 by threading on one side of the light target body 1. When in use, the entire device is placed in the shaft hub 14, and then the extrusion sleeve 3 is rotated, and the tapered surface 4 of the extrusion sleeve 3 is used to simultaneously squeeze multiple push rods 6, so that the multiple push rods 6 move radially outward at the same time, thereby making the multiple top plates 7 fit the inner wall of the shaft hub 14 at the same time (such as Figure 6 As shown), in order to achieve the fixation of the light target body and the center of the target, the extrusion sleeve 3 can simultaneously link multiple top plates 7 and simultaneously push the inner wall of the hub 14, and the fixation can be achieved by one adjustment, which can achieve rapid adjustment, improve work efficiency and centering accuracy; and the axial movement direction of the extrusion sleeve 3 is perpendicular to the movement direction of the push rod 6, and the extrusion sleeve 3 is threadedly connected to the light target body 1, so that the push rod 6 can be automatically locked in the specified position. Even if the extrusion sleeve 3 is loosened, the entire device will not loosen, and it is more convenient to use.

[0024] Preferably, a plurality of thread grooves 11 are provided at the other end of the extrusion sleeve 3, and the plurality of thread grooves 11 are evenly distributed along the circumference of the extrusion sleeve 3. In actual use, the extrusion sleeve 3 can be conveniently rotated by screwing bolts in the thread grooves 11.

[0025] Preferably, a ball head 12 is provided at the bottom of the push rod 6, and the ball head 12 contacts the tapered surface 4 of the extrusion sleeve 3. The contact between the ball head 12 and the tapered surface 4 can reduce the friction between the push rod 6 and the tapered surface 4, making the extrusion sleeve 3 easier to rotate.

[0026] Preferably, an annular plate 13 is provided at the smallest diameter end of the conical surface 4, and the height of the annular plate 13 is greater than the diameter of the ball head 12. The provision of the annular plate 13 can prevent the squeeze sleeve 3 from separating from the push rod 6, ensuring that the squeeze sleeve 3 can still push the push rod 6 when it is fixed next time.

[0027] Preferably, the top plate 7 is an arc-shaped plate, which contacts the inner wall of the hub 14, resulting in a larger contact area and higher stability.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention. These modifications and improvements will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A device for quickly determining the center circle of a shaft boring hole, comprising a light target body (1), wherein a bull's eye (2) is detachably mounted at the center of the light target body (1), characterized in that: The invention also includes an extrusion sleeve (3), one end of which is provided with a conical surface (4), the inner wall of which is provided with an internal thread, an annular groove (5) is provided on the light target body (1) outside the bull's eye (2), and an external thread is provided on a side wall of the annular groove (5) close to the center of the light target body (1), one end of the conical surface (4) of the extrusion sleeve (3) is inserted into the annular groove (5), and the extrusion sleeve (3) is rotatably installed in the annular groove (5) through the cooperation of the internal thread and the external thread; the outer wall of the extrusion sleeve (3) is evenly provided with a plurality of sliding grooves extending radially to the inner wall of the annular groove (5), and a push rod is slidably inserted into each of the sliding grooves (6), the bottom of each push rod (6) contacts the conical surface (4) of the extrusion sleeve (3), the top of each push rod (6) is provided with a top plate (7), and the light target body (1) outside each push rod (6) is provided with a mounting groove (8) extending radially to the inner wall of the annular groove (5), the lower part of the push rod (6) is provided with a limit block (9), the limit block (9) is slidably connected to the mounting groove (8), and a reset spring (10) is provided in the mounting groove (8), the reset spring (10) is sleeved on the push rod (6), and the two ends of the reset spring (10) are respectively connected to the groove top of the mounting groove (8) and the limit block (9).

2. The device for quickly determining the center circle of a shaft boring according to claim 1, characterized in that: The other end of the extrusion sleeve (3) is provided with a plurality of thread grooves (11), and the plurality of thread grooves (11) are evenly distributed along the circumference of the extrusion sleeve (3).

3. The device for quickly determining the center circle of a shaft boring according to claim 1, characterized in that: A ball head (12) is provided at the bottom of the push rod (6), and the ball head (12) is in contact with the conical surface (4) of the extrusion sleeve (3).

4. The device for quickly determining the center circle of a shaft boring according to claim 3, characterized in that: An annular plate (13) is provided at one end of the tapered surface (4) with the smallest diameter, and the height of the annular plate (13) is greater than the diameter of the ball head (12).

5. The device for quickly determining the center circle of a shaft boring according to claim 1, characterized in that: The top plate (7) is an arc-shaped plate.

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