Automobile axle paint spraying device

Abstract

The utility model provides an automobile axle paint spraying device. The automobile axle paint spraying device comprises a rail driving unit, a transmission unit and a spraying assembly. The rail driving unit comprises a first driving part, a circulating rail and a chain arranged along the circulating rail, and the driving part drives the chain to circularly move along the circulating rail. The transmission unit comprises a plurality of connecting bases arranged at intervals, connecting arms connected to the lower ends of the connecting bases, and rotating assemblies arranged on the connecting arms. The axle is connected to the rotating assembly, and the connecting base is connected with the chain. The spraying assembly comprises a driving assembly and spraying guns, and the spraying guns and the axles are arranged in a one-to-one correspondence mode. The driving assembly drives the spray gun to move in the X direction, the Y direction and the Z direction. The rotating assembly comprises a second driving part and a rotating shaft connected to the connecting arm in a pivoted mode. The axle is provided with a supporting base arranged on the rotating shaft in a sleeving mode, and the second driving part is connected to the fixed end of the driving assembly. According to the utility model, the axle can obtain a paint film with uniform thickness, automatic spraying is realized, and the spraying effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts processing equipment, especially relates to a car axle paint spraying device. BACKGROUND

[0002] The axle is a kind of extremely important automobile parts, and the axle is connected with the frame through the suspension, and the wheels are installed at the two ends of the axle, and the axle is used to bear the load of the automobile and maintain the normal driving of the automobile on the road.The purpose of axle paint spraying is to make the axle have good corrosion resistance to prolong its service life.The spraying process of the axle includes pretreatment, primer spraying, intermediate coating spraying, topcoat spraying, drying and curing and other processes.

[0003] The spraying mode can be divided into manual spraying and automatic spraying.The advantages of manual spraying are that it can adapt to the complex shape of the axle, ensure that the coating completely covers the surface of the workpiece, although the investment cost is low, but the coating waste is serious when manual coating, and the thickness uniformity of the paint film cannot be guaranteed.The coating adhesion rate of automatic spraying is high, but there is a disadvantage that the paint film thickness on the upper and lower surfaces of the workpiece is thinner than that on the side surface of the workpiece.In addition, if a robot arm is used for spraying, the robot arm and the suspension conveying chain may interfere with each other, which is not conducive to the smooth implementation of the paint spraying production, causes the problem of production line shutdown adjustment, and reduces the paint spraying efficiency.

[0004] In addition, in the prior art, the axle is assembled and then hung on the track movable seat by a chain for transmission, so that the axle is in a non-stationary state during the conveying process, and the dynamic state during spraying cannot guarantee the uniformity of the paint film thickness, and the position with thin paint film reduces the corrosion resistance. SUMMARY

[0005] Therefore, the utility model aims at providing a car axle paint spraying device to obtain a paint film with uniform thickness on the axle, realize automatic spraying and improve the spraying effect.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] A car axle paint spraying device includes a track driving unit, a transmission unit circulating along the track driving unit, and a spraying assembly arranged on the track driving unit.

[0008] The track driving unit includes a first driving part, a circulating track, and a chain arranged along the circulating track, and the driving part drives the chain to move circularly along the circulating track.

[0009] The transmission unit includes a plurality of spaced connection seats, a connection arm connected to the lower end of the connection seat, and a rotating assembly arranged on the connection arm.

[0010] The axle is connected to the rotating assembly, and the connecting seat is connected to the chain;

[0011] The spraying assembly comprises a driving assembly, and a spray gun connected to the power output of the driving assembly, and the spray gun is arranged in one-to-one correspondence with the axle;

[0012] The driving assembly drives the spray gun to move in X, Y and Z directions;

[0013] The rotating assembly comprises a second driving part and a rotating shaft pivotally connected to the connecting arm, and the axle is provided with a supporting seat sleeved on the rotating shaft, and the second driving part is connected to the fixed end of the driving assembly.

[0014] Further, the transmission unit further comprises a roller pivotally connected to the connecting seat, and the circulating track is provided with a track groove extending along itself, and the roller is arranged in the track groove;

[0015] One end of the connecting seat away from the roller is provided with a U-shaped seat, and the connecting arm is detachably connected to the U-shaped seat.

[0016] Further, the connecting arm comprises a connecting body and a clamping assembly arranged at one end of the connecting body;

[0017] The clamping assembly comprises a mounting plate, two clamping jaws pivotally connected to the mounting plate, and a third driving part for driving the two clamping jaws to open and close;

[0018] The clamping end of the clamping jaw is provided with a circular groove, and the U-shaped seat is provided with a pin shaft matched in diameter with the circular groove;

[0019] When the third driving part drives the two clamping jaws to approach each other, the clamping jaws are locked to limit the displacement of the connecting arm.

[0020] Further, the mounting plate is further provided with a limiting shaft, and the clamping jaw is provided with a concave arc segment;

[0021] When the clamping jaw is driven to rotate about the pivot shaft, the limiting shaft abuts against the concave arc segment, so that the concave arc segment rotates about the outer periphery of the limiting shaft.

[0022] Further, the other end of the connecting body is provided with a universal shaft, and the universal shaft is connected to the rotating shaft.

[0023] Further, a rod end joint bearing is arranged between the universal shaft and the rotating shaft, and the movable end of the rod end joint bearing is sleeved on the rotating shaft.

[0024] Further, the support base comprises a threaded cylinder and a connecting rod arranged in the threaded cylinder;

[0025] The threaded cylinder is connected to the beam of the axle, and the connecting rod is provided with a through hole so that the connecting rod is sleeved on the rotating shaft.

[0026] Further, the rotating shaft is a threaded shaft, and the rod end spherical bearing is provided with a limiting nut on both sides, and / or the connecting rod is provided with a limiting nut on both sides.

[0027] Further, the driving assembly adopts a three-axis combined module.

[0028] Further, a plurality of support beams are arranged above the circulating track, the support beams are provided with containing boxes containing spraying materials, and connecting hoses are arranged between the containing boxes and the spray gun.

[0029] Compared with the prior art, the automobile axle spraying device has the following advantages:

[0030] The automobile axle spraying device comprises a connecting seat, a connecting arm, a rotating assembly, a driving assembly, a circulating track, a spray gun, a first driving part, a second driving part, a third driving part, a clamping assembly and a support base.

[0031] In addition, the connecting arm and the U-shaped seat are detachably connected through the clamping assembly, the installation and disassembly of the axle and the circulating track are facilitated, an assembly area can be arranged when the axle is not in the circulating track to assemble the axle, the connecting arm, the rotating assembly and the clamping assembly, each assembled component is lifted to the lower end of the circulating track through a device such as a crane or a bracket, and the spraying efficiency is improved.

[0032] In addition, the universal shaft is arranged between the connecting body and the rotating shaft to avoid the jamming phenomenon caused by the connection of the lower end axle when the connecting seat turns, and the installation problem of different specifications of the axle due to the different distances of the support base is also adapted, and the applicability of the automobile axle spraying device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustrating the illustrative embodiments of the present application and the explanations provided herein. In the drawings:

[0034] Figure 1 The bottom view schematic diagram of the automobile axle paint spraying device is described in the embodiment of the utility model;

[0035] Figure 2 The connection schematic diagram of the transmission unit, the axle and the spraying assembly and part track transmission units is described in the embodiment of the utility model;

[0036] Figure 3 The right view schematic diagram of the transmission unit, the axle and the spraying assembly and part track transmission units is described in the embodiment of the utility model;

[0037] Figure 4 It is Figure 2 The local enlarged view at A in figure 4 is described in the embodiment of the utility model;

[0038] Figure 5 It is Figure 2 The local enlarged view at B in figure 4 is described in the embodiment of the utility model.

[0039] Mark explanation:

[0040] 1, track drive unit; 2, transmission unit; 3, spraying assembly; 4, rotating assembly; 5, axle; 6, limit nut; 7, support beam; 8, containing box; 9, connecting hose;

[0041] 101, first drive part; 102, circulating track; 103, chain;

[0042] 201, connecting seat; 202, connecting arm; 203, roller; 204, track groove; 205, U-shaped seat; 206, pin shaft; 207, universal shaft; 208, rod end joint bearing;

[0043] 301, drive assembly; 302, spray gun;

[0044] 401, second drive part; 402, rotating shaft;

[0045] 501, support seat;

[0046] 2021, connecting body; 2022, mounting plate; 2023, clamping pliers; 2024, third drive part; 2025, limit shaft;

[0047] 5011, threaded barrel; 5012, connecting rod;

[0048] 20231, concave arc segment. Specific implementation

[0049] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0050] In the description of the utility model, it is necessary to explain that the terms "upper", "lower", "inner", "back" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0051] In addition, in the description of the utility model, unless otherwise explicitly limited, the terms "mounting", "connecting", "connection", "connector" should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood in combination with the specific circumstances.

[0052] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0053] The present embodiment relates to a kind of automobile axle paint spraying device, as a whole, as shown in Figures 1 to 3 The automobile axle paint spraying device includes track driving unit 1, transmission unit 2 circulating transmission along track driving unit 1, and spraying assembly 3 on track driving unit 1. Track driving unit 1 includes first driving part 101, circulating track 102, and chain 103 along circulating track 102, and driving part drives chain 103 to move along circulating track 102.

[0054] Wherein, transmission unit 2 includes several interval arranged connecting seat 201, connecting arm 202 connected in the lower end of connecting seat 201, and rotating assembly 4 on connecting arm 202. Axle 5 is connected on rotating assembly 4, and connecting seat 201 is connected with chain 103. Spraying assembly 3 includes driving assembly 301, and spray gun 302 connected in the power output of driving assembly 301, and spray gun 302 is set one by one with axle 5. Driving assembly 301 drives spray gun 302 to move along X, Y, Z three directions. Rotating assembly 4 includes second driving part 401, and pivotally connected on connecting arm 202 on pivot 402;Axle 5 is provided with support seat 501 on pivot 402, and second driving part 401 is connected in the fixed end of driving assembly 301.

[0055] As set forth above, the automobile axle paint spraying device of the present embodiment, by virtue of the connecting seat 201 and the connecting arm 202 for connecting the rotating assembly 4, the axle 5 is connected to the rotating assembly 4, which can improve the stability of the axle 5 during transportation, avoiding the shaking of the axle 5 during transportation caused by the use of the chain 103 for suspension in the prior art. At the same time, since the axle 5 is connected to the rotating shaft 402, the second driving part 401 drives the rotating shaft 402 to rotate, and the axle 5 rotates accordingly, the spray gun 302 is driven by the driving assembly 301 to be able to move in the X, Y and Z directions, so as to adjust the distance of the spray gun 302 relative to the axle 5 and the adjustment of the spraying track, thereby effectively controlling the thickness of the paint film of the axle 5, realizing the uniformity and stability of the paint film spraying, and improving the paint spraying effect.

[0056] Based on the above overall introduction, a plurality of connecting seats 201 are arranged on the circulating track 102, the axle 5 is connected between every two adjacent connecting seats 201 through the connecting arm 202 as described above, the first driving part 101 adopts a servo motor, and the circulating track 102 adopts a ring track. Of course, in other embodiments, the circulating track 102 can be arranged in other shapes according to the factory layout, which is not limited herein.

[0057] The power output end of the first driving part 101 is connected with a chain wheel, and the chain 103 is arranged along the extension direction of the circulating track 102. In the present example, as shown in Figure 2 and Figure 3 , the chain 103 has a gap between the two rollers, the connecting seat 201 is inserted into the gap, and the chain 103 drives the connecting seat 201 to be transported by the driving of the first driving part 101.

[0058] As a specific embodiment, as shown in Figures 1 to 3 , the spraying assembly 3 of the present embodiment is fixed above the circulating track 102, and the axle 5 needs to be stopped at the spraying position for spraying operation. It should be noted that the spraying assembly 3 can also be fixed with two adjacent connecting seats 201, so that the spraying assembly 3 can be sprayed while the axle 5 is transported, further increasing the spraying efficiency.

[0059] Preferably, as shown in Figure 2 and Figure 3 , the transmission unit 2 further comprises a roller 203 pivotally connected to the connecting seat 201, and the circulating track 102 is provided with a track groove 204 arranged along the extension thereof, and the roller 203 is arranged in the track groove 204. The end of the connecting seat 201 away from the roller 203 is provided with a U-shaped seat 205, and the connecting arm 202 is detachably connected with the U-shaped seat 205.

[0060] Further, as shown in Figure 2 and Figure 3As shown, the connecting arm 202 comprises a connecting body 2021, and a clamping assembly arranged at one end of the connecting body 2021. The clamping assembly comprises a mounting plate 2022, two clamping jaws 2023 pivotally connected to the mounting plate 2022, and a third driving part 2024 for driving the two clamping jaws 2023 to open and close. The clamping end of the clamping jaw 2023 is provided with a circular arc groove, and the U-shaped seat 205 is provided with a pin shaft 206 matching the diameter of the circular arc groove. When the third driving part 2024 drives the two clamping jaws 2023 to approach each other, the clamping jaws 2023 are locked to limit the displacement of the connecting arm 202.

[0061] In combination Figure 4 As shown, the third driving part 2024 adopts a double-piston rod cylinder, and two piston rods are respectively pivotally connected to the two clamping jaws 2023. In this embodiment, the two clamping jaws 2023 are pivotally connected between the two mounting plates 2022 through a pivot shaft 402. In this embodiment, the clamping assembly is arranged to detachably connect the connecting arm 202 and the U-shaped seat 205, which facilitates the installation and disassembly of the vehicle axle 5 and the circulating track 102. When not entering the circulating track 102, an assembly area can be arranged to assemble the vehicle axle 5, the connecting arm 202, the rotating assembly 4, and the clamping assembly. The assembled components are lifted to the lower end of the circulating track 102 by devices such as cranes or brackets, thereby improving the spraying efficiency.

[0062] As a preferred embodiment, as shown in Figure 4 As shown, the mounting plate 2022 is further provided with a limiting shaft 2025, and the clamping jaw 2023 is provided with a concave arc segment 20231. When the clamping jaw 2023 is driven to rotate along the pivot shaft 402, the limiting shaft 2025 abuts against the concave arc segment 20231, so that the concave arc segment 20231 rotates along the outer periphery of the limiting shaft 2025. By arranging the limiting shaft 2025, the position of the circular arc groove of the clamping jaw 2023 can be prevented from changing due to different output forces of the piston rods at both ends of the third driving part 2024, thereby improving the locking effect of the locking jaw.

[0063] In addition, as shown in Figure 2 and Figure 3 As shown, the other end of the connecting body 2021 is provided with a universal shaft 207 connected to the rotating shaft 402. By arranging the universal shaft 207 between the connecting body 2021 and the rotating shaft 402, the jamming phenomenon caused by the connection of the lower end vehicle axle 5 when turning can be avoided, and the installation problem of different specifications of vehicle axles 5 due to different distances of the supporting seat 501 can also be adapted, thereby improving the applicability of the automobile axle paint spraying device.

[0064] Further, as shown in Figure 2 and Figure 3As shown, the universal shaft 207 and the rotating shaft 402 are provided with a rod end joint bearing 208, and the movable end of the rod end joint bearing 208 is sleeved on the rotating shaft 402. In this way, the flexibility of the connection between the connecting arm 202 and the rotating shaft 402 can be improved, and the flexibility and stability of the paint spraying device can be further improved.

[0065] In addition, as shown in Figure 2 and Figure 5 The support seat 501 includes a threaded cylinder 5011 and a connecting rod 5012 arranged in the threaded cylinder 5011. The threaded cylinder 5011 is connected to the cross beam of the axle 5, and the connecting rod 5012 is provided with a through hole to allow the connecting rod 5012 to be sleeved on the rotating shaft 402. The connecting rod 5012 is screwed and fixed with the threaded cylinder 5011, and the threaded cylinder 5011 is welded and fixed on the cross beam of the axle 5. In a specific implementation, in order to ensure the stability of the connection between the connecting rod 5012 and the rotating shaft 402, threaded holes are arranged on the connecting rod 5012 and the rotating shaft 402, and a locking screw is connected to the connecting rod 5012 and the rotating shaft 402 along the radial direction of the connecting rod 5012.

[0066] As shown in Figure 5 The rotating shaft 402 is a threaded shaft, and limit nuts 6 are arranged on both sides of the rod end joint bearing and / or the connecting rod 5012. By arranging the limit nuts 6, the stability of the connection of the axle 5 is increased, the axle 5 is prevented from shaking during transportation, and the spraying effect is improved.

[0067] Preferably, the driving assembly 301 adopts a three-axis combined module to adapt to the adjustment of the spray gun 302 in the X, Y and Z directions. The first driving part 101 adopts a servo motor, which can control the rotation angle of the axle 5, so that the irregular surface of the axle 5 can be kept perpendicular to the spray gun 302, and the position adjustment of the spray gun 302 can meet the distance requirement between the spray gun 302 and the surface to be sprayed of the axle 5, thereby ensuring the spraying effect. Of course, in order to achieve the above effect, a position sensor can be arranged on the spray gun 302.

[0068] In addition, as shown in Figure 1 A plurality of support beams 7 are arranged above the circulating track 102, and a containing box 8 containing paint is arranged on the support beam 7, and a connecting hose 9 is arranged between the containing box 8 and the spray gun 302. By arranging the containing cavity and the connecting hose 9, sufficient paint can be provided.

[0069] The automobile axle paint spraying device of the embodiment can adjust the distance between the spray gun 302 and the axle 5 and the adjustment of the spraying track, so as to effectively control the thickness of the paint film of the axle 5, realize the uniformity and stability of the paint film spraying, and improve the paint spraying effect.

[0070] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automobile axle painting device, characterized in that: comprising a track driving unit (1), a transmission unit (2) circulating along the track driving unit (1), and a spraying assembly (3) arranged on the track driving unit (1); the track driving unit (1) comprises a first driving part (101), a circulating track (102), and a chain (103) arranged along the circulating track (102), and the driving part drives the chain (103) to move along the circulating track (102); the transmission unit (2) comprises a plurality of spaced connecting seats (201), connecting arms (202) connected to the lower ends of the connecting seats (201), and a rotating assembly (4) arranged on the connecting arms (202); an axle (5) is connected to the rotating assembly (4), and the connecting seat (201) is connected to the chain (103); the spraying assembly (3) comprises a driving assembly (301), and a spray gun (302) connected to the power output of the driving assembly (301), and the spray gun (302) is arranged one-to-one corresponding to the axle (5); the driving assembly (301) drives the spray gun (302) to move in X, Y, and Z directions; the rotating assembly (4) comprises a second driving part (401), and a rotating shaft (402) pivotally connected to the connecting arm (202); a supporting seat (501) is arranged on the axle (5) and sleeved on the rotating shaft (402), and the second driving part (401) is connected to the fixed end of the driving assembly (301).

2. The automobile axle painting device according to claim 1, characterized in that: the transmission unit (2) further comprises a roller (203) pivotally connected to the connecting seat (201), and the circulating track (102) is provided with a track groove (204) arranged along itself, and the roller (203) is arranged in the track groove (204); one end of the connecting seat (201) away from the roller (203) is provided with a U-shaped seat (205), and the connecting arm (202) is detachably connected to the U-shaped seat (205).

3. The automobile axle painting device according to claim 2, characterized in that: the connecting arm (202) comprises a connecting body (2021), and a clamping assembly arranged at one end of the connecting body (2021); the clamping assembly comprises a mounting plate (2022), two clamping jaws (2023) pivotally connected to the mounting plate (2022), and a third driving part (2024) driving the two clamping jaws (2023) to open and close; the clamping end of the clamping jaw (2023) is provided with a circular arc groove, and the U-shaped seat (205) is provided with a pin shaft (206) matching the diameter of the circular arc groove; the third driving part (2024) drives the two clamping jaws (2023) to lock when they are close to each other, so as to limit the displacement of the connecting arm (202).

4. The automobile axle painting device according to claim 3, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The mounting plate (2022) is further provided with a limiting shaft (2025), and the clamping jaw (2023) is provided with a concave arc segment (20231); When the clamping jaw (2023) is driven to rotate along the pivot shaft (402), the limiting shaft (2025) abuts against the concave arc segment (20231), so that the concave arc segment (20231) rotates along the outer periphery of the limiting shaft (2025).

5. The automobile axle paint spraying device according to claim 3, characterized in that: The other end of the connecting body (2021) is provided with a universal shaft (207), and the universal shaft (207) is connected to the rotating shaft (402).

6. The automobile axle paint spraying device according to claim 5, characterized in that: A rod end joint bearing (208) is arranged between the universal shaft (207) and the rotating shaft (402), and a movable end of the rod end joint bearing (208) is sleeved on the rotating shaft (402).

7. The automobile axle paint spraying device according to claim 6, characterized in that: The support seat (501) comprises a threaded cylinder (5011) and a connecting rod (5012) arranged in the threaded cylinder (5011); The threaded cylinder (5011) is connected to the cross beam of the automobile axle (5), and the connecting rod (5012) is provided with a through hole, so that the connecting rod (5012) is sleeved on the rotating shaft (402).

8. The automobile axle paint spraying device according to claim 7, characterized in that: The rotating shaft (402) is a threaded shaft, and the rod end joint bearing is provided with a limiting nut (6) on both sides, and / or the connecting rod (5012) is provided with a limiting nut (6) on both sides.

9. The automobile axle paint spraying device according to claim 1, characterized in that: The driving assembly (301) is a three-axis combined module.

10. The automobile axle paint spraying device according to claim 1, characterized in that: A plurality of support beams (7) are arranged above the circulating track (102), the support beams (7) are provided with containing boxes (8) containing paint, and the containing boxes (8) and the spray gun (302) are connected through connecting hoses (9).

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