Heavy load assembly apparatus

By combining a support base, a fixed clamping device, and a movable clamping device, the stability and unreliable clamping problems of existing assembly equipment are solved, enabling reliable clamping and efficient rotation of heavy-duty assemblies, thus improving production efficiency.

CN224360077UActive Publication Date: 2026-06-16WELL TECHNOLOGY COMPANY LIMITED

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WELL TECHNOLOGY COMPANY LIMITED
Filing Date
2025-07-15
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing assembly equipment suffers from problems such as poor stability, easy overturning, unreliable clamping, and inability to rotate in terms of support structure and clamping mechanism, resulting in low production efficiency.

Method used

It adopts a combination structure of support base, fixed clamping device and movable clamping device. The support base provides reliable support for the fixed clamping device and the movable clamping device. The clamping mechanism realizes three-point contact clamping and allows the assembly to rotate in the clamping state. Combined with lifting, translation and rotation mechanism, it realizes docking and rotation operation of assembly.

Benefits of technology

It improves the stability and anti-tipping ability of assembly equipment, ensures reliable clamping of heavy-duty parts and efficient production, has a wide range of applications and is easy to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of assembly, especially a heavy load assembly equipment, including support seat, fixed clamping device and movable clamping device, fixed clamping device and / or movable clamping device are movably connected with support seat, the fixed clamping device includes first clamping seat and installs on first clamping seat's support platform and fixed clamping mechanism, the fixed clamping mechanism includes first clamping mechanism and second clamping mechanism, first clamping mechanism and second clamping mechanism are close to or far from support platform, the movable clamping device includes second clamping seat and sets up movable clamping mechanism on second clamping seat, the movable clamping mechanism includes claw subassembly, the claw subassembly includes with second clamping seat movably connected clamping arm and sets up movable part on clamping arm, movable part and clamping arm movably connected, to make assembly spare in the clamping state can rotate around its axis. Adopt the utility model, and support force is strong, clamping is reliable, and can rotate under the clamping.
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Description

Technical Field

[0001] This utility model relates to the field of assembly, and in particular to a heavy-duty assembly table. Background Technology

[0002] When assembling shaft components, alignment and alignment adjustments are required, followed by movement and docking. One assembly method involves fixing one component in place while clamping another component for movement and docking. After docking, one of the components needs to be rotated to engage the threaded connection.

[0003] Existing assembly equipment can assemble shaft system components, but it has the following drawbacks:

[0004] 1. The support structure uses connecting rods and connecting blocks for support. Alternatively, it is supported only by a single hydraulic cylinder inside the movable roller bracket, which poses a risk of pressure leakage. Furthermore, the inner and outer shells of the bracket play a guiding and straightening role, resulting in poor guiding accuracy and thus poor stability and anti-overturning ability. It is only suitable for assembling small components.

[0005] 2. Clamping mechanisms for clamping two assemblies: One clamping mechanism uses two jaws that move relative to each other to clamp the assembly. Another clamping mechanism also uses two jaws, but with additional pulleys on the jaws, allowing the assembly to move axially while clamped, thus achieving docking of the two assemblies. While this structure can dock two assemblies, the assembly may slip out of the jaws' gripping range, causing clamping failure and requiring re-clamping, resulting in low production efficiency. Furthermore, this structure cannot allow the assembly to rotate while clamped. Some movable roller supports only have two rows of rollers for support, lacking clamping function and power-driven rotation, requiring manual rotation.

[0006] 3. The clamping mechanism uses a gear and rack connection to drive the movement of two grippers, thus clamping or releasing the assembly. However, this connection method provides insufficient clamping force, and slippage can easily occur after prolonged use, resulting in unreliable and unstable clamping, affecting the assembly process. Some hydraulic vises use hydraulic cylinders to clamp the assembly upwards, requiring a crane to lift the assembly for auxiliary clamping, which also leads to unreliable and unstable clamping. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a heavy-duty assembly device with strong support force, reliable clamping, and the ability to rotate while being clamped.

[0008] To solve the above-mentioned technical problems, this utility model provides a heavy-duty assembly equipment, including a support base, a fixed clamping device and a movable clamping device, wherein the fixed clamping device and / or the movable clamping device are movably connected to the support base.

[0009] The fixing clamping device includes a first clamping seat, a support platform and a fixing clamping mechanism mounted on the first clamping seat, and the fixing clamping mechanism includes a first clamping mechanism and a second clamping mechanism, which are close to or far from the support platform.

[0010] The movable clamping device includes a second clamping seat and a movable clamping mechanism disposed on the second clamping seat. The movable clamping mechanism includes a jaw assembly. The jaw assembly includes a clamping arm movably connected to the second clamping seat and a movable member disposed on the clamping arm. The movable member and the clamping arm are movably connected so that the assembly can rotate around its axis in the clamping state.

[0011] As an improvement to the above solution, the support base is provided with several movable seats, and the fixed clamping device and the movable clamping device are respectively provided on different movable seats;

[0012] The movable seat includes a support plate and a docking slider disposed on the support plate. The support seat is provided with a docking guide rail, and the docking slider and the docking guide rail are slidably connected.

[0013] The support base is provided with several reinforcing ribs.

[0014] As an improvement to the above solution, both the first clamping mechanism and the second clamping mechanism include a clamping drive mechanism and a clamping block connected to the clamping drive mechanism, wherein the clamping drive mechanism drives the clamping block to move closer to or away from the support platform.

[0015] As an improvement to the above solution, the support platform is provided with a first arc surface, and the clamping block is provided with a second arc surface;

[0016] The second arc surfaces of the first clamping mechanism and the second clamping mechanism are respectively located on opposite sides above the first arc surface.

[0017] As an improvement to the above solution, the moving direction of the clamping blocks of the first clamping mechanism and the second clamping mechanism overlaps with the radial direction of the circle where the first arc surface is located, and the included angles formed with the axis of symmetry of the first arc surface are equal.

[0018] As an improvement to the above solution, the number of gripper assemblies is at least two sets;

[0019] The movable component is a gripper roller; the movable clamping mechanism also includes a supporting movable component, which includes a supporting roller, and the axes of the gripper roller and the supporting roller are parallel to each other;

[0020] One end of the clamping arm is rotatably connected to the second clamping seat, and the other end is rotatably connected to the gripper roller; the supporting roller is rotatably connected to the second clamping seat; the two gripper rollers are located on opposite sides above the supporting roller.

[0021] As an improvement to the above solution, the movable clamping device further includes a lifting mechanism, which includes a lifting seat and a lifting drive mechanism disposed on the lifting seat. The lifting drive mechanism includes a lifting worm, a lifting worm wheel, and a lifting lead screw. The lifting worm, the lifting worm wheel, the lifting lead screw, and the second clamping seat are connected in sequence to drive the second clamping seat to lift.

[0022] As an improvement to the above solution, the lifting mechanism further includes a lifting guide assembly, which includes a guide seat and a guide rod. One end of the guide rod is movably connected to the lifting seat, and the other end is fixedly connected to the guide seat. The guide seat is fixedly connected to the lifting screw, and the second clamping seat is disposed on the guide seat.

[0023] As an improvement to the above solution, the movable clamping device further includes a translation mechanism, which includes a translation drive mechanism. The translation drive mechanism includes a ball screw mounted on a guide seat and a screw nut connected to the ball screw. The screw nut and the second clamping seat are fixedly connected.

[0024] As an improvement to the above solution, the guide seat is provided with a translation guide rail, and the second clamping seat is provided with a translation slider, the translation slider and the translation guide rail being slidably connected;

[0025] The lifting worm gear is equipped with a lifting handwheel, and the ball screw is equipped with a translation handwheel.

[0026] The following are the beneficial effects of implementing this utility model:

[0027] This utility model relates to a heavy-duty assembly equipment, comprising a support base, a fixed clamping device, and a movable clamping device. The support base reliably supports the fixed and movable clamping devices, providing strong support force, good stability and anti-overturning ability, and can bear heavy assemblies, making it widely applicable. Furthermore, the fixed and / or movable clamping devices are movably connected to the support base, allowing adjustment of the distance between them to facilitate the docking of two assemblies, simplifying operation.

[0028] The fixed clamping device securely clamps one of the components, utilizing a support platform, a first clamping mechanism, and a second clamping mechanism to achieve three-point contact clamping of the component. Compared to the existing two-point contact clamping with two grippers, this invention offers higher stability, more reliable clamping, and higher production efficiency.

[0029] In addition, the movable clamping device clamps another assembly. The movable part on the clamping arm contacts the assembly. Because the movable part and the clamping arm are movably connected, the assembly rotates around its own axis under clamping, which can realize the operation of rotating the threaded thread after docking. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of the heavy-duty assembly table of this utility model;

[0031] Figure 2 yes Figure 1 Front view of the fixed clamping device;

[0032] Figure 3 yes Figure 2 A sectional view;

[0033] Figure 4 yes Figure 1 Front view of the movable clamping device;

[0034] Figure 5 yes Figure 4 A three-dimensional image. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0036] This utility model relates to an assembly method for centering, adjusting, and moving shaft system components for connection, where some components require rotation to engage threaded connections. Shaft system components refer to cylindrical components.

[0037] See Figure 1-5 This utility model discloses a heavy-duty assembly equipment, including a support base 1, a fixed clamping device 3 and a movable clamping device 4, wherein the fixed clamping device 3 and / or the movable clamping device 4 are movably connected to the support base 1.

[0038] It should be noted that the fixed clamping device and the support base can be movably connected, or only the movable clamping device and the support base can be movably connected, or the fixed clamping device and the movable clamping device can be movably connected to the support base respectively, as long as the distance between the fixed clamping device and the movable clamping device can be adjusted.

[0039] The fixing clamping device 3 includes a first clamping seat 31, a support platform 32 mounted on the first clamping seat 31, and a fixing clamping mechanism. The fixing clamping mechanism includes a first clamping mechanism and a second clamping mechanism, which are close to or away from the support platform 32. When the first clamping mechanism and the second clamping mechanism are close to the support platform, the assembly is clamped; when the first clamping mechanism and the second clamping mechanism are away from the support platform, the assembly is released.

[0040] The movable clamping device 4 includes a second clamping seat 41 and a movable clamping mechanism disposed on the second clamping seat 41. The movable clamping mechanism includes a jaw assembly. The jaw assembly includes a clamping arm 42 movably connected to the second clamping seat 41 and a movable member disposed on the clamping arm 42. The movable member and the clamping arm 42 are movably connected so that the assembly can rotate around its axis in the clamping state.

[0041] This utility model relates to a heavy-duty assembly equipment, comprising a support base, a fixed clamping device, and a movable clamping device. The support base reliably supports the fixed and movable clamping devices, providing strong support force, good stability and anti-overturning ability, and can bear heavy assemblies, making it widely applicable. Furthermore, the fixed and / or movable clamping devices are movably connected to the support base, allowing adjustment of the distance between them to facilitate the docking of two assemblies, simplifying operation.

[0042] The fixed clamping device securely clamps one of the components, utilizing a support platform, a first clamping mechanism, and a second clamping mechanism to achieve three-point contact clamping of the component. Compared to the existing two-point contact clamping with two grippers, this invention offers higher stability, more reliable clamping, and higher production efficiency.

[0043] In addition, the movable clamping device clamps another assembly. The movable part on the clamping arm contacts the assembly. Because the movable part and the clamping arm are movably connected, the assembly rotates around its own axis under clamping, which can realize the operation of rotating the threaded thread after docking.

[0044] Preferably, such as Figure 1 As shown, the support base 1 is provided with a plurality of reinforcing ribs 11. More preferably, the reinforcing ribs 11 are spaced apart on the support base 1. The provision of reinforcing ribs greatly enhances the strength of the support base, thereby improving its heavy-duty capacity and ensuring good stability and anti-overturning ability when bearing heavy assemblies, thus ensuring the smooth progress of assembly operations.

[0045] Specifically, such as Figure 1 As shown, the support base 1 is provided with a plurality of movable seats 2, and the fixed clamping device 3 and the movable clamping device 4 are respectively provided on different movable seats 2; the movable seat 2 includes a bearing plate 21 and a docking slider 22 provided on the bearing plate 21, the support base 1 is provided with a docking guide rail 12, and the docking slider 22 and the docking guide rail 12 are slidably connected, thereby realizing the sliding connection between the movable seat and the support base.

[0046] More specifically, such as Figure 1As shown, both sides of the bearing plate 21 are provided with docking sliders 22, and both sides of the support base 1 are provided with docking guide rails 12. The docking sliders 22 and docking guide rails 12 are arranged in a one-to-one correspondence. The docking sliders and docking guide rails on both sides provide reliable support for the bearing plate, making the bearing plate balanced in force, reliable in movement, and stable. The docking guide rails 12 are arranged along the extension direction of the support base 1.

[0047] Furthermore, the first clamping mechanism and the second clamping mechanism have the same structure. For example... Figure 2-3 As shown, both the first and second clamping mechanisms include a clamping drive mechanism 33 and a clamping block 34 connected to the clamping drive mechanism 33. The clamping drive mechanism 33 drives the clamping block 34 to move closer to or away from the support platform 32, thereby clamping or releasing the assembly. This invention utilizes the support platform, the first clamping mechanism, and the second clamping mechanism in cooperation to achieve three-point contact clamping of the assembly, resulting in high stability, reliable clamping, and high production efficiency. The clamping drive mechanism is preferably a hydraulic cylinder.

[0048] Preferably, such as Figure 3 As shown, the support platform 32 has a first arc surface 321, and the clamping block 34 has a second arc surface 341; the second arc surfaces 341 of the first clamping mechanism and the second clamping mechanism are respectively located on opposite sides above the first arc surface 321. The arc surface design allows the support platform and the clamping block to fit snugly against the shape of the shaft assembly, preventing slippage and making the clamping more stable and reliable.

[0049] More preferably, the moving directions of the clamping blocks 34 of the first and second clamping mechanisms overlap with the radial direction of the circle containing the first arc surface 321, and the included angles formed with the axis of symmetry of the first arc surface 321 are equal. This arrangement ensures that when the assembly placed on the support platform is simultaneously squeezed and clamped onto the support platform by the first and second clamping mechanisms, the forces are balanced, resulting in stable, reliable, and secure clamping under the cooperation of the support platform, the first clamping mechanism, and the second clamping mechanism, thus achieving high clamping reliability.

[0050] It should be noted that the number of gripper assemblies is at least two sets, and the two sets of gripper assemblies simultaneously tend to the assembly to clamp the assembly.

[0051] Specifically, such as Figure 4-5 As shown, the movable component is a gripper roller 43; the movable clamping mechanism also includes a supporting movable component, which includes a supporting movable roller 44. The axes of the gripper roller 43 and the supporting roller 44 are parallel to each other. That is, the axes of the shaft assembly, the gripper roller, and the supporting roller are parallel to each other. The two sets of gripper assemblies and the supporting movable component cooperate to achieve three-point contact clamping of the assembly. Compared with the existing two-point contact clamping with two grippers, this utility model has high stability, reliable clamping, and high production efficiency.

[0052] The shaft assembly is connected to the gripper rollers and support rollers respectively, allowing the assembly to rotate around its own axis, while simultaneously driving the gripper rollers and support rollers to rotate. The design of the gripper rollers and support rollers reduces the friction between the assembly and the gripper assembly and the supporting movable assembly respectively, ensuring smooth rotation of the assembly and reliable clamping.

[0053] Preferably, there are at least two supporting rollers 44, so that the assembly contacts two gripper rollers 43 and two supporting rollers 44 respectively, realizing four-point contact clamping, which further increases the reliability of clamping.

[0054] In this configuration, one end of the clamping arm 42 is rotatably connected to the second clamping seat 41, and the other end is rotatably connected to the gripper roller 43; the supporting roller 44 is rotatably connected to the second clamping seat 41; and the two gripper rollers 43 are located on opposite sides above the supporting roller 44. Preferably, one end of the clamping arm 42 and the second clamping seat 41 are rotatably connected via a rotating mechanism (not shown in the figure), and a rotary motor drives the clamping arm to rotate, causing the gripper rollers to contact or separate from the assembly, thereby achieving clamping or releasing. The rotating mechanism is preferably a rotary motor.

[0055] Furthermore, such as Figure 4-5 As shown, the movable clamping device further includes a lifting mechanism, which comprises a lifting seat 51 and a lifting drive mechanism mounted on the lifting seat 51. The lifting drive mechanism includes a lifting worm gear 52, a lifting worm wheel 53, and a lifting screw 54. The lifting worm gear 52, the lifting worm wheel 53, the lifting screw 54, and the second clamping seat 41 are sequentially connected to drive the second clamping seat 41 to rise and fall, thereby driving the movable clamping mechanism, i.e., the assembly, to rise and fall. The lifting mechanism allows the movable clamping mechanism to move longitudinally, enabling longitudinal alignment between the assembly on the movable clamping mechanism and the assembly on the fixed clamping mechanism.

[0056] This invention utilizes a rotating lifting worm gear to rotate the lifting worm wheel, which, due to the threaded connection between the lifting worm wheel and the lifting screw, causes the lifting screw to rise and fall. The structural principle of the lifting drive mechanism is the same as that of existing screw jacks, and will not be described in detail here. It should be noted that, in addition to this lifting drive mechanism, other structures can also be used, as long as they can achieve the purpose of driving the second clamping seat and the movable clamping mechanism to rise and fall.

[0057] Preferably, such as Figure 4-5As shown, the lifting mechanism also includes a lifting guide assembly, which includes a guide seat 55 and a guide rod 56. One end of the guide rod 56 is movably connected to the lifting seat 51, and the other end is fixedly connected to the guide seat 55. The guide seat 55 is fixedly connected to the lifting screw 54, and the second clamping seat 41 is disposed on the guide seat 55. The lifting screw rises and falls, driving the guide seat to rise and fall, that is, driving the second clamping seat to rise and fall. At the same time, in order to stabilize the lifting of the guide seat, guide rods are used for guidance and support, assisting the lifting of the guide seat. Specifically, there are at least four guide rods 56, evenly distributed around the lifting screw 54. The guide rods are inserted into the lifting seat, and the rise and fall of the guide rods is the extension and retraction of the guide rods on the lifting seat. The cooperation between the guide rods and the lifting seat allows the guide rods to move in a predetermined direction, thereby ensuring the stability of the lifting of the guide seat.

[0058] Furthermore, such as Figure 4-5 As shown, the movable clamping device further includes a translation mechanism, which includes a translation drive mechanism. The translation drive mechanism includes a ball screw 61 mounted on a guide seat 55 and a screw nut 62 connected to the ball screw 61. The screw nut 62 is fixedly connected to the second clamping seat 41. The translation drive mechanism is located at the bottom of the second clamping seat 41. Rotation of the ball screw causes the screw nut to move back and forth along the ball screw, driving the second clamping seat and the movable clamping mechanism to move laterally. This allows the components on the movable clamping mechanism and the components on the fixed clamping mechanism to be adjusted and aligned laterally.

[0059] Therefore, with the cooperation of the lifting mechanism and the translation mechanism, the lateral and longitudinal positions of the assembly held by the movable clamping mechanism are adjusted, that is, the alignment of the assemblies on the movable clamping mechanism and the fixed clamping mechanism is adjusted, thereby achieving the alignment of the two assemblies. The cooperation between the support base and the movable base enables the moving docking of the two assemblies.

[0060] Preferably, such as Figure 4-5 As shown, the guide seat 55 is provided with a translation guide rail 63, and the second clamping seat 41 is provided with a translation slider 411. The translation slider 411 and the translation guide rail 63 are slidably connected. The cooperation between the translation guide rail and the translation slider ensures that the second clamping seat moves back and forth in a predetermined direction without deviation, thereby ensuring the accuracy of alignment.

[0061] Preferably, such as Figure 4-5 As shown, the lifting worm gear 52 is equipped with a lifting handwheel 521, and the ball screw 61 is equipped with a translation handwheel 611. Rotating the lifting handwheel causes the lifting worm gear to rotate, thereby raising or lowering the second clamping seat. Rotating the translation handwheel causes the ball screw to rotate, thereby translating the second clamping seat. Its structure is simple, reliable, and easy to operate.

[0062] In summary, this utility model provides a heavy-duty assembly device with strong support, reliable clamping, and the ability to rotate while being clamped.

[0063] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A heavy-duty assembly equipment, characterized in that, It includes a support base, a fixed clamping device, and a movable clamping device, wherein the fixed clamping device and / or the movable clamping device are movably connected to the support base; The fixing clamping device includes a first clamping seat, a support platform and a fixing clamping mechanism mounted on the first clamping seat, and the fixing clamping mechanism includes a first clamping mechanism and a second clamping mechanism, which are close to or far from the support platform. The movable clamping device includes a second clamping seat and a movable clamping mechanism disposed on the second clamping seat. The movable clamping mechanism includes a jaw assembly. The jaw assembly includes a clamping arm movably connected to the second clamping seat and a movable member disposed on the clamping arm. The movable member and the clamping arm are movably connected so that the assembly can rotate around its axis in the clamping state.

2. The heavy-duty assembly equipment as described in claim 1, characterized in that, The support base is provided with several movable seats, and the fixed clamping device and the movable clamping device are respectively provided on different movable seats; The movable seat includes a support plate and a docking slider disposed on the support plate. The support seat is provided with a docking guide rail, and the docking slider and the docking guide rail are slidably connected. The support base is provided with several reinforcing ribs.

3. The heavy-duty assembly equipment as described in claim 1, characterized in that, Both the first clamping mechanism and the second clamping mechanism include a clamping drive mechanism and a clamping block connected to the clamping drive mechanism. The clamping drive mechanism drives the clamping block to move closer to or away from the support platform.

4. The heavy-duty assembly equipment as described in claim 3, characterized in that, The support platform is provided with a first arc surface, and the clamping block is provided with a second arc surface; The second arc surfaces of the first clamping mechanism and the second clamping mechanism are respectively located on opposite sides above the first arc surface.

5. The heavy-duty assembly equipment as described in claim 4, characterized in that, The moving direction of the clamping blocks of the first clamping mechanism and the second clamping mechanism overlaps with the radial direction of the circle containing the first arc surface, and the included angles formed with the axis of symmetry of the first arc surface are equal.

6. The heavy-duty assembly equipment as described in claim 1, characterized in that, The number of gripper assemblies is at least two sets; The movable component is a gripper roller; the movable clamping mechanism also includes a supporting movable component, which includes a supporting roller, and the axes of the gripper roller and the supporting roller are parallel to each other; One end of the clamping arm is rotatably connected to the second clamping seat, and the other end is rotatably connected to the gripper roller; the supporting roller is rotatably connected to the second clamping seat; the two gripper rollers are located on opposite sides above the supporting roller.

7. The heavy-duty assembly equipment as described in claim 1, characterized in that, The movable clamping device further includes a lifting mechanism, which includes a lifting seat and a lifting drive mechanism disposed on the lifting seat. The lifting drive mechanism includes a lifting worm, a lifting worm wheel, and a lifting lead screw. The lifting worm, the lifting worm wheel, the lifting lead screw, and the second clamping seat are connected in sequence to drive the second clamping seat to lift.

8. The heavy-duty assembly equipment as described in claim 7, characterized in that, The lifting mechanism further includes a lifting guide assembly, which includes a guide seat and a guide rod. One end of the guide rod is movably connected to the lifting seat, and the other end is fixedly connected to the guide seat. The guide seat is fixedly connected to the lifting screw, and the second clamping seat is disposed on the guide seat.

9. The heavy-duty assembly equipment as described in claim 8, characterized in that, The movable clamping device further includes a translation mechanism, which includes a translation drive mechanism. The translation drive mechanism includes a ball screw mounted on a guide seat and a screw nut connected to the ball screw. The screw nut and the second clamping seat are fixedly connected.

10. The heavy-duty assembly equipment as described in claim 9, characterized in that, The guide seat is provided with a translation guide rail, and the second clamping seat is provided with a translation slider, the translation slider being slidably connected to the translation guide rail; The lifting worm gear is equipped with a lifting handwheel, and the ball screw is equipped with a translation handwheel.