Assembly table for automobile part production

Abstract

The assembly table for automobile part production comprises a workbench structure provided with two assembly angle adjusting mechanisms, and the assembly angle adjusting mechanisms achieve angle adjustment and two-end synchronous rotation through a lead screw, a motor, a control rotating shaft, a worm and gear, an auxiliary bevel gear and other structures. The large parts are stably clamped and positioned at multiple angles in cooperation with the assembly positioning mechanism, structural deformation caused by unstable supporting is avoided, meanwhile, the telescopic part storage mechanism is arranged at the bottom of the workbench, quick taking and safe returning of the parts are achieved through a limiting structure, and the assembly efficiency and safety are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive parts assembly equipment, and particularly to an assembly table for automotive parts production. Background Art

[0002] In the assembly production process of automotive parts, large parts such as engine casings and crankcases, due to their complex structures, large masses, and high installation precision requirements, usually need to be fixed and adjusted with the help of special assembly tables to ensure the stability and safety of assembly operations. Most of the currently common assembly platforms have relatively simple structures and often can only provide basic support functions, lacking angle adjustment and position adjustment functions. As a result, when facing parts of different sizes and shapes, there are problems such as poor compatibility and low assembly efficiency. At the same time, for parts with a relatively large length, if only fixed at one end, the other end remains in a suspended state for a long time, which is likely to cause deformation due to the action of gravity, thereby affecting the assembly precision and subsequent service performance.

[0003] In addition, during actual assembly operations, it is often necessary to perform installation operations on different end faces of parts. However, there is a problem of limited assembly space during the clamping process of existing assembly tables. Operators often need to frequently disassemble the clamping device or repeatedly adjust the position, which not only reduces work efficiency but also increases the risk of work-related injuries. At the same time, most current assembly tables lack a multi-point synchronous angle adjustment mechanism, resulting in poor synchronism at both ends when adjusting the angle of large parts, which is likely to cause inconsistent rotation angles, leading to uneven stress on the parts and bending or damage. In addition, most existing assembly platforms use friction positioning or mechanical stops to maintain the rotation angle, lacking a reliable self-locking structure and being unable to effectively prevent the parts from accidentally moving due to changes in the center of gravity, presenting a relatively large potential safety hazard during use.

[0004] During the assembly process, there is a wide variety of assembly tools and accessories (such as bolts, nuts, seals, etc.). Existing assembly tables usually do not have a dedicated accessory storage structure or only have a simple storage area, and cannot effectively achieve classified placement and convenient access, affecting the assembly efficiency and increasing the assembly time and error rate. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides an assembly table for automotive parts production, which solves the problems.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0007] An assembly table for automotive parts production includes a workbench structure. The workbench structure includes a workbench main body. Vertical plates are welded to both ends of the upper surface of the workbench main body. Two assembly angle adjustment mechanisms are installed on the upper surface of the workbench main body, and one of the two assembly angle adjustment mechanisms is fixedly arranged and the other is movably arranged;

[0008] The assembly angle adjustment mechanism is used to adjust the assembly angle of automotive parts. The assembly angle adjustment mechanism includes a moving seat and a control rotating shaft that rotates between two vertical plates. On one side surface of the moving seat that faces each other, a rotating shaft is installed. At the end of the rotating shaft, an assembly positioning mechanism is provided;

[0009] The assembly positioning mechanism is used to fix automotive parts;

[0010] On the bottom of the workbench main body, arc-shaped track grooves are symmetrically opened. Inside the arc-shaped track grooves, accessory storage mechanisms are symmetrically and slidably installed. On the front side of the workbench main body, fixing mechanisms are symmetrically installed. The fixing mechanisms are used to fix the extended accessory storage mechanisms.

[0011] Furthermore, lead screws are symmetrically and rotatably installed between the two vertical plates. The ends of the two lead screws are both installed on a control motor. The movable assembly angle adjustment mechanism is screwed onto the two lead screws. At one end of the rotating shaft, a worm gear is provided. The worm gears are inside the moving seat. Inside the moving seat, a transmission shaft is vertically and rotatably installed on one side. Above the surface of the transmission shaft, a worm is provided. The worm and the worm gear cooperate with each other.

[0012] Furthermore, a bushing is rotatably installed below the inside of the moving seat. At the end of the bushing, snap rings are symmetrically installed. The two snap rings are respectively placed on both sides of the moving seat. On the surface of the bushing, a first bevel gear is installed. At the bottom of the transmission shaft, a second bevel gear is provided. The second bevel gear and the first bevel gear mesh with each other.

[0013] Furthermore, a control handwheel is provided at the end of the control rotating shaft. Key bars are symmetrically provided on the surface of the control rotating shaft. The control rotating shaft penetrates through the bushing. Inside the bushing, key grooves that are adapted to the key bars are symmetrically opened.

[0014] Furthermore, the assembly positioning mechanism includes a turntable fixed at the end of the rotating shaft. On the surface of the turntable, a plurality of extension rods are symmetrically provided. Track grooves are opened on the surfaces of the extension rods.

[0015] Furthermore, a first slider is slidably installed at the rear side of the extension rod. A second slider is slidably installed at the front side of the extension rod. A locking bolt is screwed between the first slider and the second slider. The locking bolt penetrates through the track groove. A positioning rod is vertically fixed on the front end face of the second slider. The positioning rod is used to position automotive parts.

[0016] Furthermore, the arc-shaped track groove is composed of two concentric semi-circular grooves, and the cross-section of the arc-shaped track groove is T-shaped. The fitting storage mechanism includes an arc-shaped track bar that slides inside the arc-shaped track groove. The arc-shaped track bar consists of two concentric track bars. The front end of the arc-shaped track bar is installed with a connecting plate through bolts. Symmetrically arranged L-shaped clamping bars are provided at the bottom of the arc-shaped track bar, and the connecting plate seals the ends of the L-shaped clamping bars.

[0017] Furthermore, fitting storage boxes are evenly installed inside the L-shaped clamping bars. Positioning holes are provided on the upper surface of the arc-shaped track bar. Extension plates are symmetrically arranged on the front side surface of the workbench main body, and the fixing mechanism is installed on the extension plates. The fixing mechanism includes a cross plate placed on the top of the extension plate. Symmetrically arranged sliding rods are provided at both ends of the bottom of the cross plate. The sliding rods penetrate through the extension plates and the internal dimensions of the bottom ends are adapted to those of the positioning holes.

[0018] Furthermore, a limiting plate is provided on the surface of the sliding rod. The limiting plate is located below the extension plate. A spring is sleeved on the surface of the sliding rod, and the spring is placed between the limiting plate and the extension plate.

[0019] The present invention provides an assembly table for automobile parts production. It has the following beneficial effects:

[0020] The assembly table for automobile parts production provided by the present invention is provided with two assembly angle adjustment mechanisms on the workbench main body, one is fixedly arranged and the other is movably arranged, and the two mechanisms are synchronously adjusted through a double lead screw and a control motor, so that the assembly distance can be flexibly adjusted according to automobile parts of different sizes and structures; at the same time, through the assembly positioning mechanism arranged at the end of the rotating shaft, the two end faces of large parts can be firmly supported, effectively avoiding the problem of structural deformation of parts caused by the end being suspended, and solving the technical problems of single fixing method, incomplete support and easy uneven stress when the existing assembly table adapts to large structural parts.

[0021] The assembly angle adjustment mechanism in the present invention adopts a composite transmission structure of a bushing, a control rotating shaft, a first bevel gear, a second bevel gear, a worm and a worm gear, and realizes the synchronous angle adjustment between the two assembly positioning mechanisms by means of the limiting cooperation between the key bar and the key groove; through the self-locking characteristic of the worm and worm gear pair, the angle deviation caused by the change of the part center of gravity or external force disturbance is effectively prevented, and the precise control of the installation angle of the parts is realized; this design solves the technical problems of poor rotation synchronism, weak locking performance and unstable structure in the angle adjustment process of the traditional assembly table, and effectively improves the reliability and precision of multi-angle assembly of large parts.

[0022] The assembly positioning mechanism provided in the present invention includes an extension rod with adjustable structure, a track groove, a slider and a locking mechanism, which can flexibly adjust the position of the positioning rod according to the different shapes and hole positions of the parts to be assembled, so as to adapt to the precise limit installation of various types of automotive parts; by matching the slider with the track and arranging locking bolts, it is ensured that the positioning rod can be quickly fixed in position after adjustment, solving the problems of strong rigidity and poor compatibility of the existing fixed structure of the assembly table, and effectively improving the operation efficiency and the stability of parts during the assembly process.

[0023] In the present invention, an arc-shaped track groove with a T-shaped cross-section is arranged at the bottom of the workbench main body, and a fitting storage mechanism is slidably installed therein, enabling the assembly personnel to classify and place elements such as assembly tools and fasteners in the storage box and pull them out to both sides of the operation area to form an annular layout around the personnel; by setting a fixing mechanism composed of a spring, a limiting plate and a sliding rod cooperating with a positioning hole, it can be automatically limited after the storage mechanism is pulled out and can also be conveniently released when retracted. This design solves the practical problems of chaotic tool storage, unreasonable space distribution and low access efficiency of the existing assembly workbench, and improves the convenience and standardization of the assembly operation. Brief Description of the Drawings

[0024] Figure 1 is a three-dimensional installation structure schematic diagram of the present invention;

[0025] Figure 2 is a schematic diagram of the workbench structure in the fitting storage state of the present invention;

[0026] Figure 3 is a schematic diagram of the interior of the moving seat of the present invention;

[0027] Figure 4 is a schematic diagram of the transmission structure of the assembly positioning mechanism of the present invention;

[0028] Figure 5 is a schematic diagram of the positioning rod installation structure of the present invention;

[0029] Figure 6 is a schematic diagram of the installation structure of the fitting storage mechanism of the present invention;

[0030] Figure 7 is a schematic diagram of the arc-shaped rail groove structure of the present invention;

[0031] Figure 8 is a schematic diagram of the arc-shaped track bar and the storage box of the present invention;

[0032] Figure 9 is a schematic diagram of the fixing mechanism of the present invention.

[0033] Among them, 1. Workbench structure; 11. Workbench main body; 12. Vertical plate; 13. Lead screw; 14. Extension plate; 15. Arc-shaped track groove;

[0034] 2. Assembly Angle Adjusting Mechanism; 21. Moving Seat; 22. Control Rotating Shaft; 23. Key Bar; 24. Control Handwheel; 25. Bush; 251. Keyway; 26. First Tapered Gear; 27. Circlip; 28. Transmission Shaft; 29. Second Tapered Gear; 210. Worm; 211. Rotating Shaft; 212. Worm Gear

[0035] 3. Assembly Positioning Mechanism; 31. Turntable; 32. Extension Rod; 33. Track Groove; 34. First Slide Block; 35. Second Slide Block; 36. Positioning Rod; 37. Locking Bolt

[0036] 4. Fitting Storage Mechanism; 41. Arc Track Strip; 42. L-shaped Clamping Strip; 43. Connecting Plate; 44. Fitting Storage Box; 45. Positioning Hole

[0037] 5. Fixing Mechanism; 51. Horizontal Plate; 52. Slide Rod; 53. Limiting Plate; 54. Spring Detailed Implementation Manner

[0038] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Embodiment 1:

[0040] Refer to Figures 1-9 , an assembly table for automobile part production, including a workbench structure 1. The workbench structure 1 includes a workbench main body 11, and the workbench main body 11 is made of Q235 carbon structural steel to ensure the overall strength and load-bearing performance; vertical plates 12 with a thickness of 8 mm are welded at both ends of the upper surface of the workbench main body 11. The vertical plates 12 are formed by laser cutting to ensure smooth edges and facilitate installation. Two assembly angle adjusting mechanisms 2 are installed on the upper surface of the workbench main body 11. Among the two assembly angle adjusting mechanisms 2, one is fixed to the workbench main body 11 by positioning screws to form a fixed structure, and the other is connected to the lead screw 13 by threads to form an adjustable structure; the assembly angle adjusting mechanism 2 is used to adjust the assembly angle of automobile parts to achieve multi-angle installation operations. The assembly angle adjusting mechanism 2 includes a moving seat 21 guided by a rail at the bottom and a control rotating shaft 22 rotating between the two vertical plates 12. A Φ25 mm rotating shaft 211 is installed on the mutually approaching side surfaces of the moving seats 21 by bolt connection. The end of the rotating shaft 211 is fixedly installed with an assembly positioning mechanism 3 by key connection for multi-point synchronous positioning control.

[0041] The assembly angle adjustment mechanism 3 is used to fix automotive parts; two arc-shaped track grooves 15 with a radius of R200mm are symmetrically opened at the bottom of the workbench main body 11. The arc-shaped track groove 15 has a depth of 30mm and its cross-sectional structure adopts a T-shaped design to enhance the stability of the sliding fit; the inner side of the arc-shaped track groove 15 is symmetrically and slidably installed with a fitting storage mechanism 4. The fitting storage mechanism 4 is arranged along the arc track of the workbench main body 11, facilitating the rapid picking and placing of fittings by personnel from both sides during the assembly process; two fixing mechanisms 5 are symmetrically installed on the front side of the workbench main body 11 by welding and strengthening ribs. The fixing mechanism 5 is used to vertically limit and lock the extended fitting storage mechanism 4 to ensure the stability of the storage structure in the pulled-out state.

[0042] Refer to Figures 1-4 , two Φ20mm lead screws 13 are symmetrically and rotatably installed between two vertical plates 12. The lead screw 13 adopts a double-direction trapezoidal thread structure to enhance the self-locking and synchronization performance. Control motors with a power of 120W and an output speed of 60rpm are respectively installed at the two ends of the two lead screws 13, and linkage control is realized through a synchronous signal cable; among them, the movable assembly angle adjustment mechanism 2 is screwed and connected to the two lead screws 13 through a ball nut assembly provided at the bottom of the moving seat 21 to achieve precise movement and positioning in the longitudinal direction of the workbench; one end of the rotating shaft 211 is provided with a worm gear 212 with a module of 2 and 40 teeth. The worm gear 212 is embedded in the worm gear cavity inside the moving seat 21. A Φ12mm transmission shaft 28 is vertically and rotatably installed on one side inside the moving seat 21. The outer wall of the transmission shaft 28 is processed with a second bevel gear 29. A worm 210 is installed above the transmission shaft 28. The worm 210 meshes with the worm gear 212 at a 90° angle to achieve the transformation of the transmission rotation angle, ensuring stable and interference-free rotation transmission.

[0043] Refer to Figures 1-4 , a bushing 25 with an axial dimension of φ18×100mm is rotatably installed in the middle of the lower part inside the moving seat 21. Lubrication grooves are provided on the outer wall of the bushing 25 to reduce the rotation resistance. Two steel circlips 27 are symmetrically installed at the ends of the bushing 25. The two circlips 27 are respectively clamped in the positioning grooves on both sides of the moving seat 21 to prevent axial movement; a first bevel gear 26 with a module of 1.5 and 28 teeth is installed on the surface of the bushing 25 through interference fit. The bottom of the transmission shaft 28 is meshed and connected with the first bevel gear 26 through a second bevel gear 29 with the same module to form a stable bevel gear meshing mechanism, realizing the efficient transmission of power in the vertical direction.

[0044] Refer to Figures 3-4, a control handwheel 24 with a diameter of 120 mm is provided at the end of the control rotating shaft 22. The control handwheel 24 is fixedly connected to the control rotating shaft 22 by screws. Two keyways 23 with a width of 6 mm are symmetrically machined on the surface of the control rotating shaft 22. The control rotating shaft 22 passes through the central hole of the bushing 25. Key grooves 251 adapted to the keyways 23 are symmetrically arranged inside the bushing 25 to ensure the synchronous transmission relationship of the rotation angle between the two. The control rotating shaft 22 is quenched and tempered with 45 steel to improve its torque transmission capacity and avoid torsional failure under long-term use.

[0045] Refer to Figures 3-4 , the assembly positioning mechanism 3 includes a turntable 31 fixed at the end of the rotating shaft 211. The turntable 31 is made of high-strength aluminum alloy and has a diameter of 260 mm to ensure coverage of the positioning requirements of large parts. Four extension rods 32 spaced 90° apart are symmetrically arranged on the surface of the turntable 31. The extension rods 32 are made of T10 steel and are fixedly connected to the turntable 31 by countersunk screws. A through-type track groove 33 is finely machined on the surface of the extension rod 32, and the track groove 33 is used to guide the slider to realize the adjustable fixation of the positioning component.

[0046] Refer to Figures 1-5 , a first slider 34 is slidably installed at the rear side of the extension rod 32, and a second slider 35 is slidably installed at the front side. Both the first slider 34 and the second slider 35 are made of aluminum alloy CNC machined parts and are provided with an embedded ball guide rail structure to ensure smooth sliding. A locking bolt 37 with a diameter of M10 and a length of 60 mm is screwed between the first slider 34 and the second slider 35. The locking bolt 37 passes through the track groove 33 to achieve precise fixation of the slider position. A positioning rod 36 made of stainless steel is vertically fixed on the front end face of the second slider 35. The positioning rod 36 has a solid structure with a diameter of φ10×100 mm and is used to provide precise lateral limits when installing large automotive parts such as engine casings and crankcases.

[0047] Refer to Figures 1-9, the arc-shaped track groove 15 consists of two concentric semi-ring grooves, and the internal machining accuracy reaches IT7 level to ensure smooth sliding of the accessory storage mechanism 4 without shaking; the cross-section of the arc-shaped track groove 15 is designed in a T shape to achieve the dual functions of accessory guiding and load-bearing. The accessory storage mechanism 4 includes an arc-shaped track bar 41 that slides inside the arc-shaped track groove 15. The arc-shaped track bar 41 is made of Q345 steel plate by bending and its structural rigidity is improved through quenching and tempering treatment. The arc-shaped track bar 41 has a structure of two concentric track bars; the front end of the arc-shaped track bar 41 is installed with a connecting plate 43 through four M6 bolts. The connecting plate 43 is made of aluminum alloy plate and is transitionally connected to the track bar to achieve external limiting; symmetrically welded at the bottom of the arc-shaped track bar 41 are L-shaped bars 42 with a thickness of 4 mm and a length of 100 mm, which are used for lateral limiting of the accessory storage box 44. The front end of the connecting plate 43 is hermetically connected to the end of the L-shaped bar 42 to prevent the accessory storage box 44 from falling off during the sliding process.

[0048] Refer to Figures 6-9 , four accessory storage boxes 44 are equidistantly installed at intervals inside the L-shaped bar 42. The size of the accessory storage box 44 is 250×120×100 mm, and it is injection-molded from ABS engineering plastic with strong impact resistance. Positioning holes 45 are evenly opened on the upper surface of the arc-shaped track bar 41 at a 45° angle for precise positioning of the limiting device; symmetrically arranged on the front surface of the workbench main body 11 are extension plates 14 with a length of 300 mm. The extension plates 14 are made of a welded steel plate structure and are connected to the workbench main body 11 to carry the fixing mechanism 5. The fixing mechanism 5 is installed on the extension plate 14. The fixing mechanism 5 includes a cross plate 51 placed at the center position on the top of the extension plate 14. The cross plate 51 is 160 mm long, 30 mm wide, and 10 mm thick. Symmetrically welded at both ends of the bottom of the cross plate 51 are sliding rods 52 with a diameter of φ6 mm and a length of 80 mm. The sliding rods 52 penetrate through the extension plate 14 and are vertically slidably connected to the inside of the positioning holes 45 to form a limiting fit structure.

[0049] Refer to Figures 6-9 , a stainless steel limiting plate 53 with a thickness of 5 mm is fixedly installed on the surface of the sliding rod 52 through screws. The limiting plate 53 is closely attached to the lower side of the extension plate 14 to form a longitudinal stroke limit; on the surface of the sliding rod 52, compression springs 54 with an outer diameter of φ8 mm and a free length of 30 mm are equidistantly press-fitted. The compression springs 54 are made of high-carbon steel material and are installed between the limiting plate 53 and the extension plate 14 to provide an automatic reset force to ensure that the sliding rod 52 can automatically insert into or withdraw from the positioning hole 45 when the storage mechanism is unfolded or retracted to achieve the functions of stable fixation and quick release.

[0050] Embodiment 2: Application of the adjustable double-screw synchronous adjustment structure

[0051] In this embodiment, the workbench main body 11 (made of Q235 carbon steel with a thickness of 10 mm) is used as the base, and vertical plates 12 are symmetrically welded at both ends. Each vertical plate has a thickness of 8 mm and is formed by laser cutting and CNC bending. Two assembly angle adjustment mechanisms 2 are respectively arranged on the left and right sides of the workbench main body 11. One side is fixedly installed, and the other side is connected to the sliding moving seat 21 through two lead screws 13 with a diameter of Φ20 mm and a lead of 5 mm. The lead screws 13 are driven by two synchronous control motors with a power of 120 W, and the rotational speed is set to 60 rpm. The synchronous forward and reverse rotation is realized through PLC control. The sliding moving seat 21 is made of an integral aluminum alloy extrusion profile and is equipped with an internal ball nut pair to ensure the smoothness during the adjustment process. This structure can flexibly adjust the distance between the two side assembly positioning mechanisms 3 and adapt to various engine casings and crankcases with a length range between 300 mm and 1200 mm, especially suitable for the high-precision requirements of symmetric clamping in the assembly of special-shaped parts.

[0052] Comparative case: The traditional assembly table structure usually only adopts the single-sided clamping or fixed tray support method, and cannot flexibly adjust the fixed position for parts of different sizes. As a result, parts such as crankcases with a length exceeding 900 mm are suspended at one end during assembly, prone to slight deformation, affecting the fitting accuracy, requiring manual auxiliary support, with low efficiency and poor safety.

[0053] Embodiment 3: The composite transmission structure realizes angle synchronous adjustment and self-locking positioning

[0054] In this embodiment, a bushing 25 is provided inside the assembly angle adjustment mechanism 2. It is made of wear-resistant stainless steel (SUS304), and snap rings 27 with an outer diameter of φ18 mm are provided at both ends for axial limit. A first bevel gear 26 (module 1.5, number of teeth 28) is arranged outside the bushing 25 and meshes with a second bevel gear 29 (with the same module) installed at the bottom end of the transmission shaft 28. The upper part of the transmission shaft 28 is connected with a worm 210 (module 2, worm pitch of 4 mm), and the worm 210 and the worm gear 212 (number of teeth 40) achieve orthogonal transmission. The worm gear 212 is coaxially connected to the rotating shaft 211, thereby driving the assembly positioning mechanism 3 to rotate. The control rotating shaft 22 passes through the entire assembly angle adjustment mechanism, and two keyways 23 (width 6 mm) are provided on its outer wall, which cooperate with the key grooves 251 provided inside the bushing 25 to ensure no angular offset between the transmission shaft and the bushing. The operator adjusts the rotation angle of the rotating shaft 22 through the control handwheel 24 to realize the synchronous rotation of the two assembly positioning mechanisms 3. The worm and worm gear pair has good self-locking performance, preventing heavy parts from swinging back after rotation, and improving the assembly stability and operation safety.

[0055] Comparative Case: A traditional assembly tool of a certain model uses a manually rotated chuck to adjust the angle. Due to the lack of a synchronous control structure, the assembly support angles at both ends are inconsistent, resulting in a torsional error of more than ±3° for large parts such as engine casings. This not only reduces the assembly accuracy but also poses a structural risk of uneven part stress.

[0056] Example 4: An adjustable positioning rod structure enables rapid compatible assembly of multiple types of components

[0057] In this embodiment, the assembly positioning mechanism 3 is composed of an aluminum alloy turntable 31 (with a diameter of 260 mm). Four extension rods 32 (made of T10 steel) are equidistantly arranged on its surface. A first slider 34 and a second slider 35 are respectively slidably installed in front of and behind each extension rod 32. The sliders are made of a nylon + aluminum alloy composite material structure to reduce weight and have good sliding performance; the track groove 33 is a through-type U-shaped groove with a width of 10 mm and a depth of 8 mm. The first slider 34 and the second slider 35 are helically connected by a locking bolt 37 of M10×60 mm; a positioning rod 36 is installed at the front end of the second slider 35, made of 45# steel, with an outer diameter of 10 mm and a height of 100 mm. This structure supports flexible movement of the positioning point within a range of 250 mm, adapting to the positioning and installation requirements of structures such as circular, square, and polygonal flanges.

[0058] Comparative Case: An old model assembly table only provides fixed bolt hole positioning and cannot effectively clamp special-shaped parts. Customized jigs need to be frequently replaced, which not only increases the assembly time but also raises the jig manufacturing and management costs, with poor adaptability and low versatility.

[0059] Example 5: An arc-shaped track accessory storage mechanism improves the convenience and efficiency of human-machine operation

[0060] In this embodiment, arc-shaped track grooves 15 with a T-shaped cross-section are symmetrically arranged at the bottom of the workbench main body 11, with a track radius of R200 mm and a depth of 30 mm; the accessory storage mechanism 4 includes a slidable arc-shaped track bar 41. An L-shaped clamping bar 42 is welded at the bottom of the track bar for limiting and installing the accessory storage box 44. The storage box has dimensions of 250×120×100 mm and is injection-molded with ABS plastic to prevent oil and corrosion; a connecting plate 43 is installed at the front end of the track bar through an M6 screw to close the end of the clamping bar and prevent the box body from sliding out; a cross plate 51 is arranged at the top of the front extension plate 14 of the workbench. Slide bars 52 (φ6 mm) are symmetrically installed at the bottom of the cross plate. The slide bars pass through the positioning holes 45 and cooperate with a limiting plate 53 and a spring 54 to form an automatic reset structure. When the storage box is pulled out, the slide bar 52 automatically inserts into the positioning hole 45 under the spring pressure to achieve rapid limiting. The operator can directly push it back after taking the accessories, improving the operation efficiency.

[0061] Comparative case: In ordinary assembly platforms, tools and accessories are often placed on the desktop or in the border slots. When there are many types of tools or the assembly steps change frequently, problems such as incorrect picking, dropping, or interfering with operation actions are very likely to occur, especially in processes with high precision requirements such as engine housing assembly, which is particularly inconvenient.

[0062] Working principle: When in use, first install large parts to be assembled, such as engine housings, crankcases, etc., on the assembly angle adjustment mechanism 2 in a fixed state. By sliding the second slider 35 and the second slider 35 inside the track groove 33 to adjust the position of the positioning rod 36, and fixing it by screwing the locking bolt 37, the position of the positioning rod 36 can be flexibly adjusted to adapt to the positioning and fixing of different automotive parts. The assembly angle adjustment mechanism 2 in a movable state is used to fix the other end face of the part to prevent deformation caused by the part being in a suspended state at the end for a long time. Starting the motor can control the rotation of the lead screw 13. By the synchronous rotation of the two lead screws 13, the distance between the two assembly angle adjustment mechanisms 2 can be controlled to adapt to the fixing of different-sized parts. At the same time, when checking the state of the part end face, the assembly angle adjustment mechanism 2 on the same side can be temporarily separated from the part to provide an assembly space, thus realizing multi-directional assembly work and avoiding problems where assembly cannot be carried out due to the clamping surface. During this process, the bushing 25 can slide along the surface of the control rotating shaft 22 without being affected;

[0063] When the angle needs to be adjusted, the control handwheel 24 can be rotated to make the control rotating shaft 22 rotate. Through the cooperation of the key 23 on the surface of the control rotating shaft 22 and the keyway 251, the bushing 25 is controlled to rotate. Then, through the meshing of the first bevel gear 26 and the second bevel gear 29, the transmission shaft 28 is driven to rotate. At this time, the worm 210 can rotate, and then the worm gear 212 is controlled to rotate to realize the rotation of the assembly positioning mechanism 3. Since both sides of the assembly positioning mechanism 3 are controlled by the control rotating shaft 22, the two assembly positioning mechanisms 3 will rotate synchronously, thus ensuring the stability of the angle rotation of the part and preventing the part from deforming due to inconsistent rotation angles at both ends. At the same time, the self-locking of the worm 210 and the worm gear 212 is utilized to ensure that the rotation of the assembly positioning mechanism 3 can only be controlled by the control rotating shaft 22 and will not move due to changes in the center of gravity of the part. Adjust the angle of the assembly positioning mechanism 3 to control the angle of the part, thus facilitating installation from different angles. Since snap rings 27 are installed at both ends of the bushing 25, and the snap rings 27 are respectively placed on both sides of the moving seat 21, the bushing 25 cannot move axially. When the moving seat 21 moves, the bushing 25 moves synchronously along the axis of the control rotating shaft 22 to always maintain the cooperation control.

[0064] After the staff members arrive at their work positions, they pull out the accessory storage mechanisms 4 on both sides respectively, and then place different assembly parts and tools, such as bolts, nuts, gaskets, sealing rings, etc., inside the accessory storage boxes 44 respectively, so that the two accessory storage mechanisms 4 are placed on both sides with the staff member as the center, which is convenient for the staff to pick up and place accessories and improves the convenience during assembly. When the accessory storage mechanism 4 is pulled out, due to the existence of the spring 54, the limiting plate 53 has a downward force, and then the sliding rod 52 automatically enters into the positioning hole 45, thereby fixing the accessory storage mechanism 4 to ensure the stability of the accessory storage mechanism 4. On the contrary, when not in use, the cross plate 51 can be lifted to make the sliding rod 52 disengage from the cooperation with the positioning hole 45, and then the accessory storage mechanism 4 is pushed into the arc-shaped track groove 15 to reduce the protruding length. The accessory storage box 44 is installed inside the two L-shaped clamping strips 42 at the bottom of the arc-shaped track bar 41, and a connecting plate 43 is installed at the front end of the L-shaped clamping strip 42 to maintain the limit and prevent falling off.

[0065] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembly table for automotive parts production, comprising a workbench structure (1), characterized in that: The workbench structure (1) includes a workbench main body (11). Vertical plates (12) are welded to both ends of the upper surface of the workbench main body (11). Two assembly angle adjustment mechanisms (2) are installed on the upper surface of the workbench main body (11), and one of the two assembly angle adjustment mechanisms (2) is fixedly arranged and the other is movably arranged; The assembly angle adjustment mechanism (2) is used to adjust the assembly angle of automotive parts. The assembly angle adjustment mechanism (2) includes a moving seat (21) and a control rotating shaft (22) rotating between the two vertical plates (12). A rotating shaft (211) is installed on the surface of the moving seat (21) close to each other, and an assembly positioning mechanism (3) is arranged at the end of the rotating shaft (211); The assembly positioning mechanism (3) is used to fix automotive parts; Arc-shaped track grooves (15) are symmetrically formed at the bottom of the workbench main body (11). Fitting storage mechanisms (4) are symmetrically and slidably installed inside the arc-shaped track grooves (15). Fixing mechanisms (5) are symmetrically installed on the front side of the workbench main body (11), and the fixing mechanisms (5) are used to fix the protruding fitting storage mechanisms (4).

2. The assembly table for manufacturing automotive parts according to claim 1, characterized in that: Lead screws (13) are symmetrically and rotatably installed between the two vertical plates (12). The ends of the two lead screws (13) are both installed on a control motor. The movable assembly angle adjustment mechanism (2) is screwed onto the two lead screws (13). A worm gear (212) is arranged at one end of the rotating shaft (211). The worm gear (212) is inside the moving seat (21). A transmission shaft (28) is vertically and rotatably installed on one side inside the moving seat (21). A worm (210) is arranged above the surface of the transmission shaft (28), and the worm (210) cooperates with the worm gear (212).

3. An assembly table for the production of automotive parts according to claim 2, characterized in that: A bushing (25) is rotatably installed below the inside of the moving seat (21). Snap rings (27) are symmetrically installed at the ends of the bushing (25). The two snap rings (27) are respectively placed on both sides of the moving seat (21). A first bevel gear (26) is installed on the surface of the bushing (25). A second bevel gear (29) is arranged at the bottom of the transmission shaft (28), and the second bevel gear (29) meshes with the first bevel gear (26).

4. An assembly table for manufacturing automotive parts according to claim 3, characterized in that: A control handwheel (24) is arranged at the end of the control rotating shaft (22). Key bars (23) are symmetrically arranged on the surface of the control rotating shaft (22). The control rotating shaft (22) passes through the bushing (25), and key grooves (251) adapted to the key bars (23) are symmetrically formed inside the bushing (25).

5. An assembly table for the production of automotive parts according to claim 1, characterized in that: The assembly positioning mechanism (3) includes a turntable (31) fixed at the end of the rotating shaft (211). A plurality of extension rods (32) are symmetrically arranged on the surface of the turntable (31), and a track groove (33) is formed on the surface of the extension rod (32).

6. The assembly table for manufacturing automotive parts according to claim 5, characterized in that: A first slider (34) is slidably mounted on the rear side of the extension rod (32), and a second slider (35) is slidably mounted on the front side of the extension rod (32). A locking bolt (37) is screwed between the first slider (34) and the second slider (35). The locking bolt (37) passes through the track groove (33). A positioning rod (36) is vertically fixed to the front end face of the second slider (35). The positioning rod (36) is used for positioning automotive parts.

7. An assembly table for manufacturing automotive parts according to claim 1, wherein: The arc-shaped track groove (15) is composed of two concentric semi-circular grooves. The cross-section of the arc-shaped track groove (15) is T-shaped. The accessory storage mechanism (4) includes an arc-shaped track bar (41) slidably arranged inside the arc-shaped track groove (15). The arc-shaped track bar (41) consists of two concentric track bars. The front end of the arc-shaped track bar (41) is installed with a connecting plate (43) through bolts. L-shaped clamping bars (42) are symmetrically arranged at the bottom of the arc-shaped track bar (41). The connecting plate (43) seals the ends of the L-shaped clamping bars (42).

8. An assembly table for the production of automotive parts according to claim 7, characterized in that: Accessory storage boxes (44) are evenly installed inside the L-shaped clamping bars (42). Positioning holes (45) are formed on the upper surface of the arc-shaped track bar (41). Extension plates (14) are symmetrically arranged on the front side surface of the workbench main body (11). The fixing mechanism (5) is installed on the extension plates (14). The fixing mechanism (5) includes a cross plate (51) placed on the top of the extension plates (14). Slide bars (52) are symmetrically arranged at both ends of the bottom of the cross plate (51). The slide bars (52) pass through the extension plates (14) and the internal dimensions of the bottom ends are adapted to those of the positioning holes (45).

9. An assembly table for the production of automotive parts according to claim 8, characterized in that: Limit plates (53) are arranged on the surfaces of the slide bars (52). The limit plates (53) are located below the extension plates (14). Springs (54) are sleeved on the surfaces of the slide bars (52). The springs (54) are arranged between the limit plates (53) and the extension plates (14).

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