Inner support type positioning device for mounting main shaft stator

Abstract

The utility model discloses an inner support type positioning device for mounting a main shaft stator, which comprises a main shaft, a first hanging ring is arranged at the top of the main shaft, three inner support plate mechanisms which are uniformly distributed in the circumferential direction are arranged on the main shaft, each inner support plate mechanism comprises an inner support plate, a rubber layer is arranged on the outer side of each inner support plate, and the inner support plate is arranged on the inner support plate. A driving rod is hinged to the top end of the inner side of the inner supporting plate, an upper inner supporting rod and a lower inner supporting rod are rotationally connected to the middle and the bottom end of the inner side of the inner supporting plate through rotating shafts correspondingly, and the other end of the driving rod is hinged to a driving base movably connected to the main shaft in a sleeving mode; an upper fixing base located in the middle of the main shaft and a lower fixing base located at the bottom end of the main shaft are further fixedly connected to the main shaft, the end of the upper inner supporting rod is hinged to the upper fixing base, the end of the lower inner supporting rod is hinged to the lower fixing base, and the length of the upper inner supporting rod is equal to that of the lower inner supporting rod. The length of the driving rod is larger than that of the upper inner supporting rod, and a plurality of second hanging rings are arranged on the top end face of the driving base.

Description

Technical Field

[0001] The utility model relates to the field of production and assembly of numerical control machine tools, in particular to an internal support type positioning device for installing a main shaft stator. Background Art

[0002] The stator of the spindle of a CNC machine tool or CNC machining center is set inside the rotor. When assembling the stator and the rotor, it is difficult to operate with traditional positioning and moving devices because there is no installation clamp on the stator. Traditionally, strong magnets are used to adsorb the stator, and the strong magnet adsorbed on the stator is lifted with a sling and transported to the inner cavity of the rotor, but this method still has certain problems. Because the strong magnet will inevitably be attracted by the rotor and cause interference, it is difficult to install the stator in place. After installation, the gap between the stator and the rotor is often uneven, and adjustment is required; even bumps may occur during the installation process, resulting in damage to the workpiece.

[0003] Therefore, a method or device capable of solving the above problems is now needed. Summary of the invention

[0004] The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes an internal support positioning device which has a simple structure, ingenious design, reasonable layout, and can quickly clamp the stator and accurately install it in the rotor.

[0005] The technical solution of the utility model is: an internal support type positioning device for installing a main shaft stator, characterized in that: the device comprises a main shaft 1, a first hanging ring 2 is arranged on the top of the main shaft 1, and three internal support plate mechanisms are evenly distributed in the circumferential direction on the main shaft 1.

[0006] The inner support plate mechanism comprises an inner support plate 3, a rubber layer 4 is arranged on the outer side of the inner support plate 3, a driving rod 5 is hinged on the top of the inner side of the inner support plate 3, and an upper inner support rod 6 and a lower inner support rod 7 are rotatably connected to the middle and bottom ends of the inner side of the inner support plate 3 respectively through a rotating shaft.

[0007] The other end of the driving rod 5 is hinged to a driving seat 8 movably sleeved on the main shaft 1. The main shaft 1 is also fixedly connected with an upper fixing seat 9 located in the middle thereof and a lower fixing seat 10 located at the bottom thereof. The end of the upper inner support rod 6 is hinged to the upper fixing seat 9, and the end of the lower inner support rod 7 is hinged to the lower fixing seat 10. The lengths of the upper inner support rod 6 and the lower inner support rod 7 are equal, while the length of the driving rod 5 is greater than that of the upper inner support rod 6.

[0008] A pair of symmetrically distributed second lifting rings 11 are provided on the top end surface of the driving seat 8 .

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] This type of internal support positioning device for the installation of the spindle stator has a simple structure, ingenious design, and reasonable layout. It is designed to solve the problem that the stator is difficult to smoothly and accurately install into the rotor during the assembly process of the CNC machining center spindle. A special structure is designed. Its main structure is a spindle with a lifting ring. Three internal support plate mechanisms are connected to the spindle. Through simple push-pull operations, the internal support plates can be tightened in the inner wall of the stator, so that the positioning device can clamp the stator, and then the device can be used to drive the stator for lifting operations. This positioning device is simple to operate, smooth and reliable in action, and can effectively improve the work efficiency during the assembly of the spindle. In addition, its manufacturing process is simple and its manufacturing cost is low. Therefore, it can be said that it has many advantages and is particularly suitable for promotion and application in this field. Its market prospects are very broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a cross-sectional view of an embodiment of the utility model.

[0012] Figure 2 It is a top view of an embodiment of the utility model. DETAILED DESCRIPTION

[0013] The specific implementation of the present utility model will be described below in conjunction with the accompanying drawings. Figure 1 , Figure 2 As shown: An internal support type positioning device for installing a spindle stator, which includes a spindle 1, a first hanging ring 2 is arranged on the top of the spindle 1, and three internal support plate mechanisms are evenly distributed in the circumferential direction on the spindle 1.

[0014] The inner support plate mechanism comprises an inner support plate 3, a rubber layer 4 is arranged on the outer side of the inner support plate 3, a driving rod 5 is hinged on the top of the inner side of the inner support plate 3, and an upper inner support rod 6 and a lower inner support rod 7 are rotatably connected to the middle and bottom ends of the inner side of the inner support plate 3 respectively through a rotating shaft.

[0015] The other end of the driving rod 5 is hinged to a driving seat 8 movably sleeved on the main shaft 1. The main shaft 1 is also fixedly connected with an upper fixing seat 9 located in the middle thereof and a lower fixing seat 10 located at the bottom thereof. The end of the upper inner support rod 6 is hinged to the upper fixing seat 9, and the end of the lower inner support rod 7 is hinged to the lower fixing seat 10. The lengths of the upper inner support rod 6 and the lower inner support rod 7 are equal, while the length of the driving rod 5 is greater than that of the upper inner support rod 6.

[0016] A plurality of second lifting rings 11 are provided on the top end surface of the driving seat 8 .

[0017] The working process of the annular workpiece inner diameter detection device of the utility model embodiment is as follows: when the stator 12 needs to be installed in the rotor 13, first connect the hook of the sling to the first sling ring 2, lift the device and place it in the inner cavity of the stator 12, and stop after it reaches the required position (depth). In the suspended state, the operator manually pushes the drive seat 8 downward, and the drive seat 8 moves downward relative to the main shaft 1. This movement of the drive seat 8 will drive the drive rod 5 connected thereto to move, and the drive rod 5 will support the inner support plate 3 connected thereto to move in the direction of the outer circumference until the outer side of the inner support plate 3 contacts the inner wall of the stator. In this process, since the inner support plate 3 is also connected to the upper inner support rod 6 and the lower inner support rod 7 at the same time, the two inner support rods will be driven to move in conjunction. When the upper inner support rod 6 and the lower inner support rod 7 are both in a horizontal state, the inner support plate 3 and the central main shaft 1 squeeze the inner support rod from two directions respectively, so that the inner support rod is locked in the current state.

[0018] The rubber layer 4 disposed on the outer side of the inner support plate 3 will be elastically deformed under the extrusion, so that sufficient friction force is generated between the inner support plate 3 and the inner wall of the stator 12. At this time, the device clamps the stator 12;

[0019] Then use the lifting device to lift the device and the stator 12 into the rotor 13, stop at the required position (depth), and then install the bearing between the two. After the bearing is installed, the stator 12 is fixed to the rotor 13 in the axial direction. Therefore, the operator only needs to pull the second lifting ring 12 upward to drive the drive seat 8 to move upward relative to the main shaft 1. This movement of the drive seat 8 will drive the outer end of the drive rod 5 (that is, pull the inner support plate 3) toward the direction of the main shaft 1, and the two inner support rods will also be driven by the inner support plate 3 from the horizontal state to the inclined state. At this time, the rubber layer 4 on the outer side of the inner support plate 3 no longer contacts the inner wall of the stator 12, and unlocking is achieved.

[0020] The device can be taken out from the stator 12.

Claims

1. An internal support type positioning device for main shaft stator installation, characterized in that: The device comprises a main shaft (1), a first suspension ring (2) is arranged on the top of the main shaft (1), and three inner support plate mechanisms are arranged on the main shaft (1) and are evenly distributed in the circumferential direction. The inner support plate mechanism comprises an inner support plate (3), the outer side of the inner support plate (3) is provided with a rubber layer (4), the top end of the inner side of the inner support plate (3) is hingedly connected to a driving rod (5), and the middle part and the bottom end of the inner side are rotatably connected to an upper inner support rod (6) and a lower inner support rod (7) respectively via a rotating shaft. The other end of the driving rod (5) is hinged to a driving seat (8) movably sleeved on the main shaft (1); an upper fixing seat (9) located in the middle thereof and a lower fixing seat (10) located at the bottom thereof are also fixedly connected to the main shaft (1); an end of the upper inner support rod (6) is hinged to the upper fixing seat (9); an end of the lower inner support rod (7) is hinged to the lower fixing seat (10); the upper inner support rod (6) and the lower inner support rod (7) are of equal length, while the length of the driving rod (5) is greater than that of the upper inner support rod (6). A pair of symmetrically distributed second lifting rings (11) are provided on the top end surface of the driving seat (8).

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