Turret assembly auxiliary mounting device and engineering machine production line

Abstract

This invention belongs to the field of engineering machinery manufacturing and discloses an auxiliary installation device for a turntable assembly and an engineering machinery production line. The auxiliary installation device for the turntable assembly includes: a suspended base frame; a base frame displacement mechanism, including an overall three-way moving mechanism and a rotation mechanism connecting the overall three-way moving mechanism and the suspended base frame; a turntable capturing mechanism, disposed on the suspended base frame and used to capture and fix the turntable; and a connecting member installation mechanism, disposed on the suspended base frame and used to connect and fix the connecting member to the frame mounting holes and the outer ring mounting holes of the slewing bearing, which are aligned with each other. Through the technical solution of this invention, during the entire installation process of the turntable assembly and the frame, there is no need for manual operation of the overhead crane to pull the turntable at an angle, no need for manual holding of the pneumatic wrench, and no need for manual bending over to operate the torque wrench. Therefore, there is no improper use or wear and tear on the overhead crane, no need for multiple people to cooperate in the installation, which can reduce the labor intensity of workers, improve safety, and provide high controllability of the rotation angle, effectively improving installation efficiency.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery manufacturing technology, specifically to an auxiliary installation device for a turntable assembly and an engineering machinery production line. Background Technology

[0002] The turntable assemblies of construction machinery such as truck cranes are heavy, varied, and irregular in shape. When installing the turntable onto the frame, the inner ring of the slewing bearing is usually installed onto the turntable first, and then the outer ring of the slewing bearing is installed onto the frame. Specifically, the multiple mounting holes on the outer ring are aligned with the multiple mounting holes on the frame, and then multiple bolts are tightened through them.

[0003] However, due to the structure of the turntable itself, after the inner ring of the slewing bearing is installed with the turntable, the base plate of the turntable will cover most of the outer ring mounting holes. Therefore, in order to tighten all the mutually aligned outer ring mounting holes and frame mounting holes by connecting bolts, the turntable must be rotated continuously to expose each outer ring mounting hole.

[0004] Currently, the above installation requires two people to complete. One person operates the crane to rotate the turntable, while the other uses a pneumatic wrench to pre-tighten the bolts and then a torque wrench to finally tighten them. However, this installation method has at least the following disadvantages:

[0005] 1. The overhead crane is angled, which does not comply with the crane's operating specifications. The turntable assembly is heavy, causing significant wear and tear on the crane and affecting its service life. 2. The crane is not a precise positioning device, and the rotation angle of the turntable driven by the crane is difficult to control. 3. Manual installation requires two people to cooperate, posing a safety risk. 4. The wind wrench is heavy, resulting in high labor intensity for workers. 5. The torque wrench is too short, requiring workers to bend over to operate it, which is not ergonomic. 6. There are approximately 36-76 mounting holes on the outer ring, but only about 2-9 can be exposed at the same time, making the current installation method inefficient. Summary of the Invention

[0006] In view of at least one of the above-mentioned defects or deficiencies in the prior art, the present invention provides a turntable assembly auxiliary installation device and an engineering machinery production line, which eliminates the need for manual operation of the overhead crane to pull the turntable and manual installation of bolts, thereby achieving the goals of reducing the labor intensity of workers, improving safety, and increasing installation efficiency.

[0007] To achieve the above objectives, a first aspect of the present invention provides an auxiliary installation device for a turntable assembly, comprising:

[0008] Suspended base frame;

[0009] The base frame displacement mechanism includes an overall three-way moving mechanism and a rotary mechanism connecting the overall three-way moving mechanism and the suspended base frame;

[0010] A turntable capture mechanism, mounted on the suspended base frame and used to capture the turntable; and

[0011] A connecting member mounting mechanism is provided on the suspended base frame and is used to connect and fix the connecting members to each other through the frame mounting holes and the outer ring mounting holes of the slewing bearing.

[0012] Optionally, the turntable capture mechanism is configured to be able to move radially along the rotary mechanism on the suspended base.

[0013] Optionally, the turntable capture mechanism is configured as a clamping capture mechanism, which includes two clamping structures capable of moving in the opposite direction tangentially to the rotary mechanism.

[0014] Optionally, the clamping structure includes a pin that extends tangentially along the rotary mechanism and is detachably inserted into a turntable pin hole.

[0015] Optionally, the pin is formed as a stepped pin.

[0016] Optionally, the clamping structure includes an elastic balancing mechanism that can move elastically in the vertical direction, and the pin is connected to the elastic balancing mechanism.

[0017] Optionally, the connecting member installation mechanism is configured as a bolt installation mechanism, which includes a partial three-way moving mechanism disposed on the suspended base frame and a tightening gun connected to the partial three-way moving mechanism.

[0018] Optionally, the auxiliary installation device for the turntable assembly includes a counterweight disposed on the suspended base frame, the suspended base frame including a base frame rotary connection portion connected to the rotary mechanism, and the turntable capture mechanism and the counterweight are respectively located on both sides of the base frame rotary connection portion along the radial direction of the rotary mechanism.

[0019] Optionally, the overall three-way moving mechanism includes a vertically arranged lifting guide cylinder and a lifting guide column, the upper part of which is movably inserted into the lifting guide cylinder and the lower part is connected to the rotary mechanism.

[0020] Optionally, the auxiliary installation device for the turntable assembly includes:

[0021] A position recognition device is used to identify the position to be captured on the turntable and generate corresponding first position information;

[0022] The processing device communicates with the capture position identification device and is configured to drive the turntable capture mechanism to capture and fix the position to be captured based on the first position information.

[0023] Optionally, the auxiliary installation device for the turntable assembly includes:

[0024] The installation position recognition device is used to identify the position of the outer ring mounting hole that is partially covered by the base plate of the turntable and generate corresponding second position information.

[0025] The processing device communicates with the installation position identification device and is configured to drive the rotary mechanism, the turntable capture mechanism and the connecting piece installation mechanism to work together according to the second position information, so that the outer ring mounting hole is fully exposed, and drive the connecting piece installation mechanism to connect and fix the connecting piece to the outer ring mounting hole and the corresponding frame mounting hole.

[0026] A second aspect of the present invention provides an engineering machinery production line, which includes the above-mentioned auxiliary installation device for the turntable assembly.

[0027] When installing the turntable assembly and the vehicle frame using the turntable assembly auxiliary installation device of the present invention, the suspended base frame is first moved above the turntable assembly via an overall three-way moving mechanism and a slewing mechanism. The turntable is then captured and fixed by a turntable capturing mechanism. The slewing mechanism then drives the suspended base frame to rotate continuously, gradually exposing the outer ring mounting holes of the slewing bearing. During this rotation, the exposed outer ring mounting holes and their corresponding vehicle frame mounting holes are connected and fixed using a connecting piece installation mechanism until the turntable assembly and the vehicle frame are fixedly installed. It is evident that during the entire installation process, there is no need for manual operation of the overhead crane to pull the turntable, no need for manual handling of the pneumatic wrench, and no need for manual bending over to operate the torque wrench. Therefore, there is no improper use or wear and tear on the overhead crane, and no need for multiple people to cooperate in the installation, reducing the labor intensity of workers, improving safety, and providing high controllability of the turntable rotation angle, effectively improving installation efficiency.

[0028] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a front view of an auxiliary installation device for a turntable assembly according to a specific embodiment of the present invention;

[0031] Figure 2 for Figure 1 Side view;

[0032] Figure 3 for Figure 1 Top view;

[0033] Figure 4 for Figure 1A front view of a partial structure of the auxiliary installation device for the turntable assembly;

[0034] Figure 5 for Figure 4 Side view;

[0035] Figure 6 for Figure 4 A magnified view of a portion of the image;

[0036] Figure 7 for Figure 1 Front view of the connecting member installation mechanism in the middle;

[0037] Figure 8 for Figure 7 Side view.

[0038] Explanation of reference numerals in the attached figures:

[0039] 10 Suspended base frame 20 Overall X-axis transfer mechanism

[0040] 30 Overall Y-axis transfer mechanism 40 Lifting guide cylinder

[0041] 50 Lifting Guide Column, 60 Rotation Mechanism

[0042] 70 Turntable capture mechanism; 80 Connecting component installation mechanism

[0043] 90 counterweights, 100 position recognition devices

[0044] 110 Installation location identification device

[0045] 71 Clamping structure 72 Pin

[0046] 73 Elastic balancing mechanism 74 Capture mechanism base frame

[0047] 75 Bidirectional lead screw 81 Local X-direction transfer mechanism

[0048] 82 Local Y-axis traveling mechanism 83 Local Z-axis traveling mechanism

[0049] 84 First tightening gun 85 Second tightening gun

[0050] 86 linkage mechanism Detailed Implementation

[0051] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0052] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0053] In the embodiments of the present invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used to describe the relative positional relationships of the components in relation to the directions shown in the accompanying drawings or in relation to the vertical, perpendicular, or gravitational directions.

[0054] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0055] like Figures 1 to 8 As shown, a first exemplary embodiment of the present invention provides a turntable assembly auxiliary installation device, which includes a suspended base frame 10, a base frame displacement mechanism, a turntable capture mechanism 70, and a connecting member installation mechanism 80.

[0056] Specifically, the base frame displacement mechanism includes an overall three-way moving mechanism and a rotary mechanism 60 connecting the overall three-way moving mechanism and the suspended base frame 10. The overall three-way moving mechanism can drive the suspended base frame 10 to move along the X, Y and Z directions, and the rotary mechanism 60 can drive the suspended base frame 10 to rotate.

[0057] For example, refer to Figure 3 The overall three-way moving mechanism may include a double-beam guide rail extending along the Y direction, an overall Y-direction moving mechanism 30 capable of moving along the Y direction on the double-beam guide rail, an overall X-direction moving mechanism 20 capable of moving along the X direction on the overall Y-direction moving mechanism 30, and an overall Z-direction moving mechanism (not shown) disposed on the overall X-direction moving mechanism 20 and connected to the suspended base frame 10. In practice, a programmable crane may be used as the overall three-way moving mechanism in this exemplary embodiment.

[0058] The turntable capture mechanism 70 is mounted on the suspended base frame 10 and is used to capture the turntable. After the base frame displacement mechanism drives the suspended base frame 10 to move to a suitable position above the turntable, the turntable capture mechanism 70 can capture and fix the turntable, for example, by clamping or adsorption. Then, in conjunction with the rotation mechanism 60, it drives the suspended base frame 10 to rotate, thereby driving the turntable to rotate.

[0059] The connecting member mounting mechanism 80 is disposed on the suspended base frame 10 and is used to connect and fix the connecting member through the mutually aligned frame mounting holes and the outer ring mounting holes of the slewing bearing. For example, when the connecting member is a bolt, and both the frame mounting holes and the outer ring mounting holes are threaded holes, the connecting member mounting mechanism 80 is correspondingly configured as a bolt mounting mechanism.

[0060] With the above configuration, when installing the turntable assembly and the vehicle frame using the turntable assembly auxiliary installation device of this exemplary embodiment, the suspended base frame 10 is first moved above the turntable assembly via the overall three-way moving mechanism and the rotation mechanism 60. The turntable is then captured and fixed by the turntable capturing mechanism 70. The rotation mechanism 60 then drives the suspended base frame 10 to rotate continuously, exposing the outer ring mounting holes of the slewing bearing. During this rotation, the exposed outer ring mounting holes and their corresponding vehicle frame mounting holes are connected and fixed using a connecting piece installation mechanism 80 until the turntable assembly and the vehicle frame are fixedly installed. It is evident that during the entire installation process, there is no need for manual operation of the crane to pull the turntable at an angle, no need for manual handling of the pneumatic wrench, and no need for manual bending over to operate the torque wrench. Therefore, there is no improper use or wear of the crane, and no need for multiple people to cooperate in the installation, reducing the labor intensity of workers, improving safety, and providing high controllability of the turntable rotation angle, effectively improving installation efficiency.

[0061] In one embodiment, the turntable capturing mechanism 70 is configured to move radially along the rotary mechanism 60 on the suspended base 10. For example, see reference... Figure 4 The turntable capture mechanism 70 includes a capture mechanism base 74, and the suspended base 10 is formed with a base guide rail extending radially along the rotary mechanism 60. The capture mechanism base 74 is capable of moving on the base guide rail.

[0062] Thus, the turntable capture mechanism 70 not only moves with the suspended base frame 10 under the drive of the overall three-way moving mechanism, but also has a small range of travel, allowing for coarse and fine position adjustments. It is compatible with capture of different turntable models and has high capture accuracy. Furthermore, the turntable capture mechanism 70 can move radially along the rotary mechanism 60, effectively adjusting the distance between the capture position and the rotation center. By appropriately adjusting this distance, the center of gravity of the turntable assembly can always be kept close to coinciding with the rotation center line, preventing excessive off-center loading during rotation. On the other hand, during rotation, the turntable capture mechanism 70 does not need to be locked; instead, it can be left in a free-floating state to accommodate changes in the rotation radius of the turntable assembly due to inertia or vibration during rotation. This prevents sudden increases in instantaneous load on the auxiliary mounting devices of the turntable assembly, protecting the devices and ensuring rotational stability.

[0063] The movement of the turntable capture mechanism 70 on the suspended base 10 can be driven by a servo motor. The high precision of the servo motor ensures that the turntable capture mechanism 70 can achieve fine-tuning of its position. In addition, the capture mechanism base 74 can be equipped with four rollers arranged in a rectangle. The four rollers can travel on the base guide rail, improving the movement stability of the turntable capture mechanism 70.

[0064] In one embodiment, the turntable capturing mechanism 70 is configured as a clamping capturing mechanism and includes two clamping structures 71, which are movable in opposite directions along the tangent of the rotary mechanism 60. When capturing the turntable, the two clamping structures 71 move closer to each other along the tangent of the rotary mechanism 60 until the turntable is clamped and fixed, thus completing the capture. When releasing the turntable, the two clamping structures 71 move further apart along the tangent of the rotary mechanism 60.

[0065] Reference Figure 5 The reverse movement of the two clamping structures 71 can be achieved by setting a lead screw and nut mechanism and a servo motor. The lead screw and nut mechanism is equipped with a bidirectional lead screw 75. Under the high-precision drive of the servo motor, the bidirectional lead screw 75 can drive the two clamping structures 71 to move in opposite directions with high precision.

[0066] To improve capture stability, a turntable pin hole can be provided on the turntable, and a pin 72 extending tangentially along the rotary mechanism 60 can be provided in the clamping structure 71. That is, the turntable is captured and fixed by inserting the pin 72 into the turntable pin hole. When it is necessary to release the turntable, the two clamping structures 71 move away from each other tangentially along the rotary mechanism 60, so that the pin 72 is pulled out from the turntable pin hole.

[0067] Furthermore, the pin 72 can be configured as a stepped pin, that is, the pin 72 has multiple shaft segments with different outer diameters to accommodate detachable connection with turntable pin holes of different diameters.

[0068] In actual production, due to issues such as poor product consistency, the axis of the turntable pin hole is not completely horizontal, but tilted relative to the horizontal plane. Therefore, during the process of pin 72 passing through the turntable pin hole, pin 72 may not be aligned with the turntable pin hole, resulting in difficulty in insertion. During the rotation of the turntable assembly, it may cause the rotation to jam.

[0069] To avoid the aforementioned adverse situations, refer to Figure 6 An elastic balancing mechanism 73 can be provided in the clamping structure 71. This elastic balancing mechanism 73 can move elastically vertically and is connected to the pin 72, thereby allowing the pin 72 to also move elastically vertically. In this way, even if the axis of the turntable pin hole is not completely horizontal, the pin 72 can still move elastically vertically during insertion to adapt to the turntable pin hole. During the rotation of the turntable assembly, the pin 72 can also move elastically vertically, avoiding rigid contact between the pin 72 and the turntable pin hole, preventing rotation jamming, and ensuring the stable and reliable operation of the turntable assembly auxiliary installation device.

[0070] exist Figure 6In one embodiment, the elastic balancing mechanism 73 includes a guide post, a pin 72 slidably sleeved on the guide post, and a spring sleeved on the guide post. One end of the spring is fixedly connected to the guide post, and the other end is fixedly connected to the pin 72. When the pin 72 is subjected to force, causing the spring to compress further, the pin 72 undergoes vertical elastic movement. When the pin 72 is not subjected to force, the spring and the pin 72 return to their original positions.

[0071] In one embodiment, the connecting member mounting mechanism 80 is configured as a bolt mounting mechanism and includes a partial three-way moving mechanism disposed on the suspended base 10 and a tightening gun connected to the partial three-way moving mechanism. The partial three-way moving mechanism can drive the tightening gun to move along the X, Y, and Z directions. The end of the tightening gun can be connected to a tightening sleeve, which is used to fit the bolt. The bolt can then be tightened by rotating the tightening gun, and a constant torque tightening can be achieved.

[0072] Reference Figure 7 and Figure 8 The partial three-way movement mechanism may include a partial X-direction movement mechanism 81 that moves along the X direction on the suspended base frame 10, a partial Y-direction movement mechanism 82 that can move along the Y direction on the partial X-direction movement mechanism 81, and a partial Z-direction movement mechanism 83 that is disposed on the partial Y-direction movement mechanism 82 and can move along the Z direction. The tightening gun may include a first tightening gun 84, a second tightening gun 85, and a linkage mechanism 86 connecting the first tightening gun 84 and the second tightening gun 85, but the linkage mechanism 86 does not restrict the independent rotation of the first tightening gun 84 and the second tightening gun 85.

[0073] exist Figure 7 and Figure 8 In the embodiment, when it is necessary to tighten the bolts, the first tightening gun 84 and the second tightening gun 85 simultaneously tighten two adjacent bolts, that is, the dual-axis torque method is adopted. Compared with the single-axis torque method, the dual-axis torque method can effectively counteract the reaction force brought by the bolts during the tightening process, so there is no need to equip a reaction force arm. It is simple and reliable, realizes rapid installation, and improves production efficiency.

[0074] Since the center of gravity of the turntable assembly is usually not coincident with the center of rotation, the turntable assembly can be regarded as an eccentric body, which will cause eccentric loading during rotation, resulting in unstable rotation. To address this, a counterweight 90 can be installed on the suspended base frame 10. The suspended base frame 10 has a base frame rotation connection part connected to the rotation mechanism 60. By setting the turntable capturing mechanism 70 and the counterweight 90 on both sides of the base frame rotation connection part along the radial direction of the rotation mechanism 60, and by reasonably setting the weight of the counterweight 90, eccentric loading can be effectively avoided.

[0075] In addition, the overall three-way moving mechanism may include a vertically arranged lifting guide cylinder 40 and a lifting guide column 50. The upper part of the lifting guide column 50 is movably inserted into the lifting guide cylinder 40 and the lower part is connected to the rotary mechanism 60, so as to play a guiding role in the lifting and lowering process of the suspended base frame 10 and prevent the suspended base frame 10 from shaking significantly during the displacement process.

[0076] The following are several embodiments that can improve the intelligence level of the auxiliary installation device for the turntable assembly.

[0077] In one embodiment, reference is made to... Figure 5 The auxiliary installation device for the turntable assembly may include a capture position recognition device 100 and a processing device. The capture position recognition device 100 may employ a 3D smart camera, etc., to identify the position to be captured on the turntable (e.g., a turntable pin hole) and generate corresponding first position information. The processing device communicates with the capture position recognition device 100 and is configured to drive the turntable capture mechanism 70 to capture and fix the position to be captured based on the first position information.

[0078] In one embodiment, reference is made to... Figure 7 and Figure 8 The turntable assembly auxiliary installation device may include an installation position recognition device 110 and a processing device. The installation position recognition device 110 may employ a 3D smart camera, etc., to identify the position of the outer ring mounting holes partially obscured by the turntable's base plate and generate corresponding second position information. The processing device communicates with the installation position recognition device 110 and is configured to drive the rotation mechanism 60, the turntable capture mechanism 70, and the connecting member installation mechanism 80 to work together based on the second position information, so that the outer ring mounting holes are fully exposed, and to drive the connecting member installation mechanism 80 to connect and fix the connecting member to the corresponding frame mounting holes.

[0079] The following is another example of the specific working principle of an auxiliary installation device for a turntable assembly:

[0080] Receive production line instructions and obtain product model information → According to the product model information, control the suspended base frame 10 to move directly above the turntable assembly → The turntable capture mechanism 70 moves to the initial position → The capture position recognition device 100 identifies the position of the turntable pin hole → The turntable capture mechanism 70 moves slightly to directly above the turntable pin hole → The capture position recognition device 100 calibrates the position → The pin 72 in the turntable capture mechanism 70 is inserted into the turntable pin hole → The installation position recognition device 110 identifies the position of the outer ring mounting hole partially covered by the turntable base plate and performs initial positioning → Control the suspended base frame 10 to drive the turntable to rotate → The installation position recognition device 110 performs fine positioning of the position of the outer ring mounting hole → The connecting part installation mechanism 80 performs the connecting part connecting action → Until the installation of all connecting parts is completed → Control the suspended base frame 10 to reset and wait for the next production line instruction.

[0081] Furthermore, a second exemplary embodiment of the present invention also provides an engineering machinery production line, which includes the aforementioned turntable assembly auxiliary installation device. Obviously, this engineering machinery production line possesses all the technical effects brought about by the aforementioned turntable assembly auxiliary installation device, and therefore will not be repeated here.

[0082] The optional embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the protection scope of the embodiments of the present invention.

[0083] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the embodiments of the present invention will not describe the various possible combinations separately.

[0084] Furthermore, various different implementations of the present invention can be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed in the present invention.

Claims

1. An auxiliary installation device for a turntable assembly, characterized in that, The auxiliary installation device for the turntable assembly includes: Suspended base frame (10); The base frame displacement mechanism includes an overall three-way moving mechanism and a rotary mechanism (60) connecting the overall three-way moving mechanism and the suspended base frame (10). A turntable capture mechanism (70) is disposed on the suspended base (10) and is used to capture the turntable; and A connecting member mounting mechanism (80) is provided on the suspended base frame (10) and is used to connect and fix the connecting members to the frame mounting holes and the outer ring mounting holes of the slewing bearing. The turntable capture mechanism (70) is configured to move radially along the rotary mechanism (60) on the suspended base frame (10); The turntable capture mechanism (70) is configured as a clamping capture mechanism, which includes two clamping structures (71) capable of moving in the opposite direction tangentially to the rotary mechanism (60). The clamping structure (71) includes a pin (72) that extends tangentially along the rotary mechanism (60) and is detachably inserted into a turntable pin hole. The clamping structure (71) includes an elastic balancing mechanism (73) that can move elastically in the vertical direction, and the pin (72) is connected to the elastic balancing mechanism (73).

2. The auxiliary installation device for the turntable assembly according to claim 1, characterized in that, The pin (72) is formed as a stepped pin.

3. The auxiliary installation device for the turntable assembly according to claim 1, characterized in that, The connecting member installation mechanism (80) is formed as a bolt installation mechanism, which includes a partial three-way moving mechanism disposed on the suspended base frame (10) and a tightening gun connected to the partial three-way moving mechanism.

4. The auxiliary installation device for the turntable assembly according to claim 1, characterized in that, The auxiliary installation device for the turntable assembly includes a counterweight (90) disposed on the suspended base frame (10). The suspended base frame (10) includes a base frame rotation connection portion connected to the rotation mechanism (60). The turntable capture mechanism (70) and the counterweight (90) are respectively located on both sides of the base frame rotation connection portion along the radial direction of the rotation mechanism (60).

5. The auxiliary installation device for the turntable assembly according to claim 1, characterized in that, The overall three-way moving mechanism includes a vertically arranged lifting guide cylinder (40) and a lifting guide column (50). The upper part of the lifting guide column (50) is movably inserted into the lifting guide cylinder (40) and the lower part is connected to the rotary mechanism (60).

6. The auxiliary installation device for the turntable assembly according to claim 1, characterized in that, The auxiliary installation device for the turntable assembly includes: A position recognition device (100) is used to identify the position to be captured on the turntable and generate first position information accordingly; The processing device communicates with the capture position identification device (100) and is configured to drive the turntable capture mechanism (70) to capture and fix the position to be captured based on the first position information.

7. The auxiliary installation device for the turntable assembly according to claim 1, characterized in that, The auxiliary installation device for the turntable assembly includes: The installation position recognition device (110) is used to identify the position of the outer ring mounting hole that is partially covered by the base plate of the turntable and generate second position information accordingly. The processing device communicates with the installation position identification device (110) and is configured to drive the rotary mechanism (60), the turntable capture mechanism (70) and the connecting piece installation mechanism (80) to work together according to the second position information so that the outer ring mounting hole is fully exposed, and drives the connecting piece installation mechanism (80) to connect and fix the connecting piece to the outer ring mounting hole and the corresponding frame mounting hole.

8. A production line for engineering machinery, characterized in that, The engineering machinery production line includes an auxiliary installation device for the turntable assembly as described in any one of claims 1 to 7.

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