Rotary table assembly auxiliary device

Abstract

The utility model provides a rotary table assembling auxiliary device, the rotary table assembling auxiliary device comprises a core shaft, a fixed plate and a rotating assembly, one end of the core shaft is fixedly connected with a rotating shaft, the fixed plate is fixedly connected with a stator, the fixed plate is provided with an installation hole, the core shaft is arranged in the installation hole in a penetrating mode, and the rotating assembly is fixedly connected with the core shaft. The rotating assembly is installed between the outer circumferential face of the core shaft and the inner circumferential face of the installation hole, and the core shaft is rotatably connected with the fixing plate through the rotating assembly. According to the rotary table assembling auxiliary device, when the tailstock is assembled, the rotary table assembling auxiliary device is installed on the left side of the tailstock, due to limitation of the fixing plate and the rotating assembly, the core shaft can bear the axial load, the core shaft and the rotating shaft are fixed together, and therefore the capacity of the rotating shaft for bearing the axial load is improved; therefore, the displacement of the rotating shaft is reduced, the accuracy of measured data is ensured, and the assembly precision is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of turntables, and in particular to a turntable assembly auxiliary device. Background Technology

[0002] In related technologies, during the assembly process of the tailstock of the cradle turntable, the bearings inside the tailstock may experience axial runout, which can lead to axial movement of the rotating shaft. This movement not only directly interferes with the accuracy of the measurement data during assembly, causing deviations between the actual measured values ​​and the theoretical values, thus affecting the final assembly accuracy, but also necessitates repeated measurements and adjustments to reduce the error caused by this movement. This undoubtedly greatly reduces assembly efficiency and increases unnecessary workload and time costs. Utility Model Content

[0003] This utility model provides a turntable assembly auxiliary device to solve the defect of low turntable assembly accuracy in the prior art and improve the turntable assembly accuracy.

[0004] This utility model provides a turntable assembly auxiliary device, including:

[0005] A mandrel, one end of which is fixedly connected to the rotating shaft;

[0006] A fixing plate is fixedly connected to the stator, and the fixing plate is provided with mounting holes, through which the spindle passes;

[0007] A rotating assembly is installed between the outer peripheral surface of the mandrel and the inner peripheral surface of the mounting hole, and the mandrel is rotatably connected to the fixed plate through the rotating assembly.

[0008] In some embodiments, the rotating component is a YRT turntable bearing.

[0009] In some embodiments, the rotating assembly includes an inner ring and an outer ring, the outer ring is sleeved on the inner ring, and the inner ring and the outer ring are rotatable relative to each other. The outer ring is fixedly connected to the fixing plate, and the inner ring is fixedly connected to the spindle.

[0010] In some embodiments, the tailstock includes a first end plate disposed at one end of the rotating shaft adjacent to the spindle, and the first end plate is fixedly connected to the rotating shaft.

[0011] The mandrel includes a second end plate, which is sleeved on the outer periphery of the mandrel and fixedly connected to the mandrel. The first end plate and the second end plate are fixedly connected.

[0012] In some embodiments, the fixing plate is disposed on the side of the second end plate away from the first end plate in the axial direction of the mandrel, the fixing plate extends radially along the mandrel, and both ends of the fixing plate are detachably connected to the stator.

[0013] In some embodiments, the turntable assembly aid includes an encoder, which is sleeved on the outer periphery of the mandrel.

[0014] In some embodiments, the turntable assembly auxiliary device further includes a fixing ring. The fixing ring, the fixing plate, and the second end plate are arranged sequentially along the axial direction of the mandrel. The fixing ring is sleeved on the outer circumferential side of the mandrel, and the inner circumferential surface of the fixing ring is spaced apart from the outer circumferential surface of the mandrel. The fixing ring is fixedly connected to the fixing plate and connected to the encoder to fix the position of the encoder.

[0015] In some embodiments, the encoder is disposed on the side of the fixed ring away from the fixed plate along the axial direction of the mandrel, and the outer periphery of the encoder is provided with a plurality of connecting members arranged circumferentially thereon, the connecting members being fixedly connected to the fixed plate.

[0016] In some embodiments, two connectors are provided, and the two connectors are arranged opposite each other in the radial direction of the mandrel.

[0017] In some embodiments, the inner peripheral wall of the fixing ring is provided with two inwardly protruding connecting portions, and the two connecting portions are connected to the two connecting members one by one.

[0018] In this embodiment of the utility model, the turntable assembly auxiliary device is installed on the left side of the tailstock during assembly. Due to the limitations of the fixed plate and the rotating assembly, the spindle can withstand axial loads, and the spindle is fixed together with the rotating shaft, thereby improving the ability of the rotating bearing to withstand axial loads and reducing the axial movement of the rotating shaft, thus ensuring the accuracy of the measurement data and greatly improving the assembly precision.

[0019] Furthermore, the turntable assembly auxiliary device of this utility model embodiment suppresses errors caused by axial movement, so that repeated measurements and adjustments are no longer needed to correct deviations during the assembly process, thereby improving assembly efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is an installation diagram of the turntable assembly auxiliary device provided by this utility model.

[0022] Figure 2 This is a cross-sectional view of the turntable assembly auxiliary device provided by this utility model in the installation state.

[0023] Figure 3 This is a half-sectional schematic diagram of the turntable assembly auxiliary device and tailstock provided by this utility model.

[0024] Figure 4 This is an exploded view of the turntable assembly auxiliary device provided by this utility model.

[0025] Figure 5 This is an exploded view of the turntable assembly auxiliary device provided by this utility model from another perspective.

[0026] Figure 6 This is a front view schematic diagram of the turntable assembly auxiliary device provided by this utility model.

[0027] Figure label:

[0028] 200. Tailstock; 201. Shaft; 202. Stator; 203. First end plate;

[0029] 100. Turntable assembly auxiliary device; 1. Mandrel; 11. Second end plate; 2. Fixing plate; 21. Stepped part; 3. Rotating component; 31. Inner ring; 32. Outer ring; 4. Encoder; 41. Connecting part; 5. Fixing ring; 51. Connecting part. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] like Figures 1 to 6 As shown, the turntable assembly auxiliary device 100 of this utility model embodiment includes a spindle 1, a fixing plate 2, and a rotating assembly 3.

[0032] The turntable includes a tailstock 200, which contains a stator 202 and a rotating shaft 201. The rotating shaft 201 is rotatably inserted into the stator 202. A turntable assembly auxiliary device 100 is detachably disposed at the end of the tailstock 200. When assembling the tailstock 200, the turntable assembly auxiliary device 100 is installed at the end of the tailstock 200. After assembly, the turntable assembly auxiliary device 100 is removed from the tailstock 200.

[0033] One end of the spindle 1 is fixedly connected to the rotating shaft 201. The fixing plate 2 is fixedly connected to the stator 202, and the fixing plate 2 is provided with a mounting hole, in which the spindle 1 passes. The rotating assembly 3 is installed between the outer circumferential surface of the spindle 1 and the inner circumferential surface of the mounting hole, and the spindle 1 is rotatably connected to the fixing plate 2 through the rotating assembly 3.

[0034] For example, for ease of description, the axial direction of mandrel 1 is taken as the left-right direction.

[0035] A turntable assembly auxiliary device 100 is located on the left side of the turntable, and the right end of the spindle 1 is fixedly connected to the rotating shaft 201. The fixed plate 2 is detachably connected to the stator 202 of the tailstock 200, for example, by bolts. The spindle 1 passes through a mounting hole in the middle of the fixed plate 2. A rotating assembly 3 is installed between the spindle 1 and the fixed plate 2 so that the spindle 1 can rotate relative to the fixed plate 2 via the rotating assembly 3.

[0036] In related technologies, during the assembly of the tailstock of a cradle turntable, the bearings inside the tailstock require an assembly clearance, which can cause axial movement of the rotating shaft. This movement not only directly interferes with the accuracy of the measurement data during assembly, causing deviations between the actual measured values ​​and the theoretical values, thus affecting the final assembly accuracy, but also necessitates repeated measurements and adjustments to reduce the error caused by this movement. This undoubtedly greatly reduces assembly efficiency and increases unnecessary workload and time costs.

[0037] In this embodiment of the utility model, the turntable assembly auxiliary device 100 is installed on the left side of the tailstock 200 during assembly. Due to the constraints of the fixing plate 2 and the rotating component 3, the spindle 1 can withstand the axial load, and the spindle 1 is fixed together with the rotating shaft 201, thereby improving the ability of the rotating shaft 201 to withstand the axial load, thereby reducing the movement of the rotating shaft 201 and improving the assembly accuracy.

[0038] In this embodiment of the utility model, the turntable assembly auxiliary device 100 is installed on the left side of the tailstock 200 during assembly. Due to the constraints of the fixed plate 2 and the rotating component 3, the spindle 1 can effectively bear the axial load, reducing the axial runout problem caused by bearing clearance in traditional designs.

[0039] In this embodiment of the utility model, the turntable assembly auxiliary device 100 is installed on the left side of the tailstock 200 during assembly. Due to the constraints of the fixing plate 2 and the rotating component 3, the spindle 1 can withstand the axial load, and the spindle 1 is fixed together with the rotating shaft 201, thereby improving the ability of the rotating shaft 201 to withstand the axial load, thereby reducing the axial movement of the rotating shaft 201, thus ensuring the accuracy of the measurement data and greatly improving the assembly precision.

[0040] Furthermore, the turntable assembly auxiliary device 100 of this utility model embodiment suppresses errors caused by axial movement, so that repeated measurements and adjustments are no longer needed to correct deviations during the assembly process, thereby improving assembly efficiency.

[0041] Therefore, the turntable assembly auxiliary device 100 of this utility model embodiment can improve the assembly accuracy of the tailstock 200.

[0042] In some embodiments, the rotating component 3 is a YRT rotary table bearing. The YRT rotary table bearing can simultaneously withstand axial and radial loads, thereby reducing or even avoiding axial movement of the spindle 1 and meeting the assembly precision requirements of the tailstock 200.

[0043] In some embodiments, such as Figure 4 and Figure 5 As shown, the rotating assembly 3 includes an inner ring 31 and an outer ring 32. The outer ring 32 is fitted onto the inner ring 31, and the inner ring 31 and the outer ring 32 can rotate relative to each other. The outer ring 32 is fixedly connected to the fixing plate 2, and the inner ring 31 is fixedly connected to the spindle 1.

[0044] The inner ring 31 and the outer ring 32 can rotate freely relative to each other. This structure not only ensures that the spindle 1 can rotate smoothly in the mounting hole of the fixed plate 2, but also ensures the stability and accuracy of the entire rotation process. The outer ring 32 is fixedly connected to the fixed plate 2 to form a stable support structure, while the inner ring 31 is tightly fixed to the spindle 1. In this way, when the spindle 1 rotates with the rotating shaft 201, the inner ring 31 also rotates, while the outer ring 32 remains stationary and serves as a support base together with the fixed plate 2. This ensures that the spindle 1 can still achieve high-precision rotational movement while bearing axial load, effectively reducing the axial runout problem caused by bearing clearance in traditional designs, thereby improving assembly accuracy and efficiency.

[0045] The inner ring 31 is fixedly connected to the rotating shaft 201, for example, by bolt connection.

[0046] The mounting hole is a stepped hole, and a step portion 21 is formed in the stepped hole. The step portion 21 is connected to the outer ring 32 by bolts.

[0047] In some embodiments, such as Figure 2 As shown, the tailstock 200 includes a first end plate 203, which is located at one end of the rotating shaft 201 adjacent to the spindle 1, and the first end plate 203 is fixedly connected to the rotating shaft 201.

[0048] The mandrel 1 includes a second end plate 11, which is sleeved on the outer periphery of the mandrel 1 and fixedly connected to the mandrel 1. The first end plate 203 and the second end plate 11 are fixedly connected.

[0049] For example, the first end plate 203 is located at the left end of the rotating shaft 201, and the second end plate 11 is located at the right end of the spindle 1. That is, the second end plate 11, the first end plate 203 and the rotating shaft 201 are arranged in sequence from left to right. In other words, the spindle 1, the first end plate 203 and the rotating shaft 201 are arranged in sequence from left to right.

[0050] Optionally, the second end plate 11 is integrally formed with the mandrel 1. The second end plate 11 is annular, and the first end plate 203 is annular. The first end plate 203 and the second end plate 11 are fixedly connected by bolts, and the first end plate 203 and the rotating shaft are fixedly connected by bolts.

[0051] Thus, by fixing the first end plate 203 and the second end plate 11 together, the connection strength between the rotating shaft 201 and the spindle 1 can be strengthened.

[0052] In some embodiments, a fixing plate 2 is disposed on the side of the second end plate 11 opposite to the first end plate 203 in the axial direction of the mandrel 1. The fixing plate 2 extends radially along the mandrel 1, and both ends of the fixing plate 2 are detachably connected to the stator 202.

[0053] For example, the fixing plate 2 is located on the left side of the second end plate 11. The fixing plate 2 is a strip plate and is arranged radially along the mandrel 1. The two ends of the fixing plate 2 are connected to the stator 202 by bolts.

[0054] In some embodiments, such as Figure 1 As shown, the turntable assembly auxiliary device 100 includes an encoder 4, which is sleeved on the outer periphery of the mandrel 1. By mounting the encoder 4 on the mandrel 1, real-time monitoring and feedback of the rotational state of the mandrel 1 can be achieved, greatly improving the accuracy of position information recording, so as to accurately obtain assembly data and significantly improve assembly efficiency and precision.

[0055] In some embodiments, such as Figure 1 As shown, the turntable assembly auxiliary device 100 also includes a fixing ring 5. The fixing ring 5, the fixing plate 2, and the second end plate 11 are arranged sequentially along the axial direction of the spindle 1. The fixing ring 5 is sleeved on the outer circumferential side of the spindle 1, and the inner circumferential surface of the fixing ring 5 is spaced apart from the outer circumferential surface of the spindle 1. The fixing ring 5 is fixedly connected to the fixing plate 2, and the fixing ring 5 is connected to the encoder 4 to fix the position of the encoder 4.

[0056] For example, the fixing ring 5, the fixing plate 2, and the second end plate 11 are arranged from left to right. The fixing ring 5 is sleeved on the outer periphery of the mandrel 1, and the inner periphery of the fixing ring 5 is spaced from the outer periphery of the mandrel 1. This design ensures that the mandrel 1 can rotate freely without obstruction, while also providing the necessary space and support for the installation of other components. The fixing ring 5 and the fixing plate 2 are connected by bolts or welding.

[0057] In addition, by fitting the retaining ring 5 around the outer periphery of the spindle 1 and firmly connecting it to the fixing plate 2, a stable and reliable basic support structure is provided for the encoder 4. This design allows the encoder 4 to fit tightly into the predetermined position, avoiding positional deviation caused by mechanical vibration or other external factors, thereby ensuring the accuracy of data acquisition and improving the assembly precision of the tailstock 200.

[0058] In some embodiments, the encoder 4 is located on the side of the fixing ring 5 away from the fixing plate 2 in the axial direction of the spindle 1, and a plurality of connectors 41 are arranged circumferentially on the outer periphery of the encoder 4, and the connectors 41 are fixedly connected to the fixing plate 2.

[0059] For example, encoder 4 is mounted on the left side of fixing ring 5, and multiple connecting pieces 41 are arranged circumferentially at intervals on the outer periphery of the right end of encoder 4. These connecting pieces 41 are connected to fixing plate 2 by bolts. This facilitates fixing encoder 4.

[0060] Optionally, connector 41 may have 2 to 6 connectors.

[0061] In some embodiments, two connectors 41 are provided, and the two connectors 41 are arranged opposite each other in the radial direction of the mandrel 1.

[0062] In some embodiments, the inner peripheral wall of the fixing ring 5 is provided with two inwardly protruding connecting portions 51, and the two connecting portions 51 are connected to the two connecting members 41 in a one-to-one correspondence.

[0063] For example, the two connectors 41 are arranged opposite each other in the radial direction of the spindle 1, which helps to distribute the force evenly and ensures that the encoder 4 is stably fixed in its position. This avoids the offset or vibration that may be caused by uneven force on one side, thereby improving the stability and reliability of the overall structure and further ensuring the accuracy of data acquisition.

[0064] Meanwhile, the inner circumferential wall of the fixing ring 5 is provided with two inwardly protruding connecting parts 51. These two connecting parts 51 are connected one-to-one with the two connecting parts 41 to form a stable connection structure. Through this precise design, the fixing ring 5 can not only firmly support the encoder 4, but also effectively fix the encoder 4 in the predetermined position to prevent any slight movement that may affect the measurement accuracy. This configuration not only simplifies the installation process and makes assembly easier and faster, but also facilitates subsequent maintenance and adjustment.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A turntable assembly auxiliary device, the turntable comprising a tailstock, a stator and a rotating shaft disposed within the tailstock, the rotating shaft being rotatably disposed within the stator, the turntable assembly auxiliary device being detachably disposed at the end of the tailstock, characterized in that, include: A mandrel, one end of which is fixedly connected to the rotating shaft; A fixing plate is fixedly connected to the stator, and the fixing plate is provided with mounting holes, through which the spindle passes; A rotating assembly is installed between the outer peripheral surface of the mandrel and the inner peripheral surface of the mounting hole, and the mandrel is rotatably connected to the fixed plate through the rotating assembly.

2. The turntable assembly auxiliary device according to claim 1, characterized in that, The rotating component is a YRT turntable bearing.

3. The turntable assembly auxiliary device according to claim 2, characterized in that, The rotating assembly includes an inner ring and an outer ring. The outer ring is fitted onto the inner ring, and the inner ring and the outer ring are rotatable relative to each other. The outer ring is fixedly connected to the fixed plate, and the inner ring is fixedly connected to the spindle.

4. The turntable assembly auxiliary device according to any one of claims 1-3, characterized in that, The tailstock includes a first end plate, which is disposed at one end of the rotating shaft adjacent to the spindle, and the first end plate is fixedly connected to the rotating shaft. The mandrel includes a second end plate, which is sleeved on the outer periphery of the mandrel and fixedly connected to the mandrel. The first end plate and the second end plate are fixedly connected.

5. The turntable assembly auxiliary device according to claim 4, characterized in that, The fixing plate is disposed on the side of the second end plate away from the first end plate along the axial direction of the mandrel. The fixing plate extends radially along the mandrel, and both ends of the fixing plate are detachably connected to the stator.

6. The turntable assembly auxiliary device according to claim 4, characterized in that, The turntable assembly auxiliary device includes an encoder, which is sleeved on the outer periphery of the mandrel.

7. The turntable assembly auxiliary device according to claim 6, characterized in that, It also includes a retaining ring. The retaining ring, the retaining plate and the second end plate are arranged sequentially along the axial direction of the mandrel. The retaining ring is sleeved on the outer circumferential side of the mandrel, and the inner circumferential surface of the retaining ring is spaced apart from the outer circumferential surface of the mandrel. The retaining ring is fixedly connected to the retaining plate and connected to the encoder to fix the position of the encoder.

8. The turntable assembly auxiliary device according to claim 7, characterized in that, The encoder is located on the side of the fixed ring away from the fixed plate along the axial direction of the mandrel. The outer periphery of the encoder is provided with a plurality of connecting parts arranged circumferentially thereon, and the connecting parts are fixedly connected to the fixed plate.

9. The turntable assembly auxiliary device according to claim 8, characterized in that, Two connectors are provided, and the two connectors are arranged opposite each other in the radial direction of the mandrel.

10. The turntable assembly auxiliary device according to claim 9, characterized in that, The inner circumferential wall of the fixing ring is provided with two inwardly protruding connecting parts, and the two connecting parts are connected to the two connecting pieces one by one.

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