Machine tool rotary table

Abstract

The utility model discloses a machine tool rotary table which comprises a base, a main shaft is connected to the base in a rotating mode, a table top rotating along with the main shaft is arranged on the main shaft, a side hole horizontally extending left and right is formed in the base, a speed changing long table is connected into the side hole in a sliding mode, and a linear reciprocating motion mechanism controlling the speed changing long table to move is arranged on the speed changing long table. A first outer gear ring and a second outer gear ring which are different in outer diameter are coaxially arranged on the main shaft, a first gear capable of being meshed with the first outer gear ring is arranged on the right side of the first outer gear ring, a first power assembly for controlling rotation is in transmission connection with the first gear, and a second gear capable of being meshed with the second outer gear ring is arranged on the left side of the second outer gear ring. The second gear is in transmission connection with a second power assembly controlling rotation, and the second power assembly and the first power assembly are both arranged on the variable speed long table. The machine tool rotary table has the advantages of being flexible in table top adjustment, safe and reliable to use, complete in overall function and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of machine tool manufacturing technology, and more specifically, it relates to a machine tool rotary table. Background Technology

[0002] Traditional machine tool rotary tables are equipped with only one power source for steering, resulting in uniform rotational speed. When the power source controls the rotary table speed at a high speed, circumferential adjustment can be achieved quickly, but this reduces safety and adjustment accuracy. When the power source controls the rotary table speed at a low speed, safety and adjustment accuracy are improved, but circumferential adjustment cannot be achieved quickly, and the adjustment speed is slow. Therefore, this utility model proposes a machine tool rotary table. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a machine tool rotary table with flexible table adjustment and safe and reliable use.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: This utility model relates to a machine tool rotary table, including a base, a spindle rotatably connected to the base, a table surface that rotates with the spindle, a side hole extending horizontally to the left and right on the base, a speed-changing platform slidably connected within the side hole, a linear reciprocating motion mechanism for controlling movement on the speed-changing platform, a first external gear ring and a second external gear ring with unequal outer diameters coaxially arranged on the spindle, a first gear that meshes with the first external gear ring on the right side, a first power assembly for controlling rotation connected to the first gear, a second gear that meshes with the second external gear ring on the left side, a second power assembly for controlling rotation connected to the second gear, the second power assembly and the first power assembly both located on the speed-changing platform, and a clearance groove cavity for the first power assembly and the second power assembly to move.

[0005] When the first gear meshes with the first external gear ring, the second gear disengages from the second external gear ring; when the second gear meshes with the second external gear ring, the first gear disengages from the first external gear ring.

[0006] The present invention is further configured such that the linear reciprocating motion mechanism is a hydraulic cylinder or push rod cylinder with the cylinder body fixed on the base and the end of the telescopic rod connected to the speed change platform.

[0007] The present invention is further configured such that both the first power assembly and the second power assembly include a geared motor.

[0008] In summary, the present invention has the following beneficial effects: The machine tool rotary table involved in the present invention can switch between the transmission of the first external gear ring and the second external gear ring by adjusting the position of the speed-changing long table relative to the base. Since the linear speeds of the two external gear rings are different in the transmission, it can satisfy the requirement that the larger circumferential angle can achieve coarse adjustment and the smaller circumferential angle can achieve fine adjustment, resulting in flexible table adjustment, safe and reliable use, complete overall functions, and strong practicality. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation

[0010] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0011] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0012] Example 1

[0013] See Figure 1 As shown, the machine tool rotary table involved in this embodiment includes a base 1, a spindle 2 rotatably connected to the base 1, a table 3 that rotates with the spindle 2, a side hole 4 extending horizontally to the left and right on the base 1, a speed-changing long table 5 slidably connected in the side hole 4, a linear reciprocating motion mechanism 6 for controlling movement on the speed-changing long table 5, a first external gear ring 7 and a second external gear ring 8 with different outer diameters coaxially arranged on the spindle 2, a first gear 9 that can mesh with the first external gear ring 7 on the right side, a first power assembly 10 for controlling rotation that is driven connected to the first gear 9, a second gear 11 that can mesh with the second external gear ring 8 on the left side, a second power assembly 12 for controlling rotation that is driven connected to the second gear 11, the second power assembly 12 and the first power assembly 10 are both arranged on the speed-changing long table 5, and a clearance slot 13 for the first power assembly and the second power assembly to move on the base 1.

[0014] When the first gear 9 meshes with the first external gear ring 7, the second gear 11 disengages from the second external gear ring 8; when the second gear 11 meshes with the second external gear ring 8, the first gear 9 disengages from the first external gear ring 7.

[0015] Furthermore, the linear reciprocating motion mechanism 6 is a hydraulic cylinder or push rod cylinder with the cylinder body fixed on the base and the end of the telescopic rod connected to the speed change platform.

[0016] Furthermore, both the first powertrain 10 and the second powertrain 12 include a geared motor.

[0017] In this implementation scheme, when it is necessary to adjust the speed of the platform 3 quickly, the linear reciprocating motion mechanism 6 can control the long platform 5 to move to the right until the second gear 11 meshes with the second external gear ring 8 and the first gear 9 disengages from the first external gear ring 7. The second power assembly 12 drives the second gear 11 to rotate, thereby causing the second external gear ring 8 and the connected platform 3 to rotate circumferentially. When it is necessary to adjust the speed of the platform 3 slowly, the linear reciprocating motion mechanism 6 can control the long platform 5 to move to the left until the first gear 9 meshes with the first external gear ring 7 and the second gear 11 disengages from the second external gear ring 8. The first power assembly 10 drives the first gear 9 to rotate, thereby causing the first external gear ring 7 and the connected platform 3 to rotate circumferentially.

[0018] The machine tool rotary table involved in this utility model can switch between the transmission of the first external gear ring and the second external gear ring by adjusting the position of the speed-changing long table relative to the base. Since the linear speeds of the two external gear rings are different in the transmission, it can meet the requirements of coarse adjustment for larger circumferential angles and fine adjustment for smaller circumferential angles. This makes the table adjustment flexible, safe and reliable to use, and has complete overall functions and strong practicality.

[0019] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used 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, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0020] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A machine tool rotary table comprising a base, a main shaft rotatably connected to the base, and a table rotatable with the main shaft, characterized in that: The base is provided with a side hole extending horizontally left and right, a variable speed long table is slidably connected in the side hole, a linear reciprocating motion mechanism for controlling movement is arranged on the variable speed long table, a first outer gear ring and a second outer gear ring with different outer diameters are coaxially arranged on the main shaft, a first gear meshable with the first outer gear ring is arranged on the right side of the first outer gear ring, a first power assembly for controlling rotation is drivingly connected to the first gear, a second gear meshable with the second outer gear ring is arranged on the left side of the second outer gear ring, and a second power assembly for controlling rotation is drivingly connected to the second gear, the second power assembly and the first power assembly are both arranged on the variable speed long table, and the base is provided with an avoiding groove for movement of the first power assembly and the second power assembly. When the first gear is engaged with the first outer gear ring, the second gear is separated from the second outer gear ring; when the second gear is engaged with the second outer gear ring, the first gear is separated from the first outer gear ring.

2. A machine tool rotary table according to claim 1, characterised in that: The linear reciprocating motion mechanism is a hydraulic oil cylinder or a push rod cylinder with a cylinder body fixed on the base and a telescopic rod end connected to the variable speed long table.

3. A machine tool rotary table according to claim 1 or 2, characterised in that: The first power assembly and the second power assembly both include a speed reduction motor.

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