Assembly line for automobile front axle assembly

Abstract

The utility model discloses an automobile front axle assembly assembly line which is characterized by comprising an anti-rotation screw press-fitting module, a bearing press-fitting module, a brake disc assembly module, a bearing assembly module, a dustproof plate and front knuckle assembly module, a knuckle sub-assembly assembly module and a caliper assembly assembly module which are all arranged on one side of a conveying chain module. The anti-rotation screw press-fitting module and the bearing press-fitting module are both arranged at the input end of the conveying chain module, and the anti-rotation screw press-fitting module and the bearing press-fitting module are connected through a first circulation tray. The brake disc assembling module, the bearing assembling module, the dustproof plate and front knuckle assembling module, the knuckle assembly assembling module and the caliper assembly assembling module are sequentially arranged from the input end of the conveying chain module to the output end of the conveying chain module. By means of the device, the installation speed can be increased, and installation is more stable.

Description

Technical Field

[0001] The utility model relates to relevant technical fields such as automobile front axle production lines, and in particular to an automobile front axle assembly line. Background Art

[0002] The front axle assembly is a critical component of an automobile, ensuring stable driving and sensitively transmitting direction. The steering knuckle transmits and bears the front load, supporting and driving the front wheels around the kingpin to steer the vehicle. While the vehicle is in motion, it is subject to variable impact loads, requiring high strength. The front axle assembly is a device that decelerates, stops, or maintains a vehicle in motion.

[0003] The front axle assembly typically requires individual parts to be assembled to produce the final product. First, the existing assembly method typically uses a single machine to manually sub-assemble components, and uses racks to circulate the sub-assembly. This original assembly model is limited by manpower, resulting in low assembly efficiency, large site space requirements, and suboptimal ergonomics. Furthermore, small sub-assemblies are prone to collisions during circulation, increasing the defective rate of the assembly off the line. Second, the existing assembly process uses manual torque tightening to tighten bolts and nuts, resulting in unstable torque during assembly and prone to abnormal noise from the front axle. Utility Model Content

[0004] In view of this, in order to solve the above problems, the purpose of the present utility model is to provide an automobile front axle assembly line, which includes:

[0005] Anti-rotation screw press-fitting module, bearing press-fitting module, brake disc assembly module, bearing assembly module, dust shield and front steering knuckle assembly module, steering knuckle sub-assembly assembly module, caliper assembly module, conveyor chain module;

[0006] The anti-rotation screw press-fitting module, the bearing press-fitting module, the brake disc assembly module, the bearing assembly module, the dust plate and front steering knuckle assembly module, the steering knuckle sub-assembly assembly module, and the caliper assembly module are all arranged on one side of the conveyor chain module;

[0007] The anti-rotation screw press-fitting module and the bearing press-fitting module are both arranged at the input end of the conveyor chain module, and the anti-rotation screw press-fitting module and the bearing press-fitting module are connected via a first flow tray;

[0008] The brake disc assembly module, the bearing assembly module, the dust plate and front steering knuckle assembly module, the steering knuckle assembly module and the caliper assembly module are arranged in sequence from the input end of the conveyor chain module to the output end of the conveyor chain module.

[0009] The above-mentioned automobile front axle assembly line, wherein the anti-rotation screw pressing module includes: a first press, a first pressing head, a bearing seat positioning tool, and a first workbench; the first press is installed on the first workbench, the first pressing head is installed on the first press, the bearing seat positioning tool is installed on the first press, and the first pressing head is facing the bearing seat positioning tool.

[0010] The above-mentioned automobile front axle assembly line, wherein the bearing pressing module includes: a second press, a second pressing head, a second workbench, and a bearing positioning tool; the second press is installed on the second workbench, the second pressing head is installed on the second press, the bearing positioning tool is installed on the second press, and the second pressing head is facing the bearing positioning tool, and the two ends of the first flow tray are respectively installed on the first workbench and the second workbench.

[0011] The above-mentioned automobile front axle assembly line, wherein the brake disc assembly module includes: a first cylinder, a tightening machine, a first tightening head, a first positioning tool, a first column module, a sensor, and a third workbench; the first cylinder is installed on the third workbench through the first column module, the tightening machine is installed on the output shaft of the first cylinder, the first tightening head is installed on the output shaft of the tightening machine, the first positioning tool is installed on the third workbench, and the first tightening head is facing the first positioning tool, and the sensor is installed on the first positioning tool.

[0012] In the above-mentioned automobile front axle assembly line, the first column module is longitudinally provided with two linear rails, the tightening machine is installed on the output shaft of the first cylinder through a tightening machine fixing seat, and the tightening machine fixing seat can be slidably installed on the two linear rails through two first sliders.

[0013] The above-mentioned automobile front axle assembly line, wherein the bearing assembly module includes: a grease injection pipeline system, a third press, a third ram, a second positioning fixture, a fourth workbench, a second transfer tray, a second column module, a baffle, a second cylinder, and an oil spray seat; the third press and the second column module are respectively installed on both sides of the upper surface of the fourth workbench, and the second transfer tray is provided between the third press and the second column module; the grease injection pipeline system is installed on the third press, the third ram is installed on the third press, and the grease injection pipeline system is connected to the third ram; the second positioning fixture is installed on the third press, and the third ram faces the second positioning fixture; the second cylinder is installed at the upper end of the second column module, and the output shaft of the second cylinder is mounted with the baffle; two rails are provided in the longitudinal direction of the second column module, and the baffle is slidably provided on the two rails through two guide blocks; the oil spray seat is installed on the fourth workbench, the baffle faces the oil spray seat, and the grease injection pipeline system is connected to the oil spray seat.

[0014] The above-mentioned automobile front axle assembly line, wherein the dust shield and front steering knuckle assembly module includes: a tooling, a third flow pallet, and a fifth workbench; the tooling is installed on the fifth workbench, and the third flow pallet is installed between the tooling and the conveyor chain module.

[0015] The above-mentioned automobile front axle assembly line, wherein the steering knuckle sub-assembly assembly module includes: a fixed plate, a third column module, a third cylinder, a servo motor, a synchronous belt, a rotating shaft, a chuck, a push button gun, a third positioning tool, a fixed seat, a first slide, a sixth workbench, a second slide, a fourth cylinder, an infrared vibration meter, and a fifth cylinder; the fixed plate and the third column module are respectively installed on both sides of the upper surface of the sixth workbench, the third cylinder is installed on the third column module, and the output shaft of the third cylinder is installed on the first slide, the first slide is slidably installed on the third column module through a linear rail structure, the servo motor and the rotating shaft are both installed on the first slide, and the output of the servo motor The output shaft and the rotating shaft are connected through the synchronous belt transmission, the chuck is installed on the rotating shaft, the third positioning tool is installed on the sixth workbench, and the chuck is opposite to the third positioning tool, the fourth cylinder is installed on the fixed plate, the output shaft of the fourth cylinder is installed on the second slide, and the fixed plate is provided with a first slide rail, the second slide is slidably installed on the first slide rail through the second slider, the fifth cylinder is installed on the second slide, the output shaft of the fifth cylinder is installed on the fixed seat, the second slide is longitudinally provided with a guide rail, the fixed seat is slidably installed on the guide rail through a guide block, the button gun is installed on the fixed seat, and the infrared vibration meter is installed on the third column module.

[0016] The above-mentioned automobile front axle assembly assembly line, wherein the caliper assembly assembly module includes: a fourth column module, a sixth cylinder, a cylinder support, a third slide, a servo tightening machine, a tightening machine connecting plate, a second tightening head, a caliper anti-rotation fixing fork, and a fourth positioning tool; the fourth column module is installed on the fifth workbench, the sixth cylinder is installed on the fourth column module through the cylinder support, the output shaft of the sixth cylinder is installed on the third slide, the fourth column module is longitudinally provided with two second slide rails, the third slide is slidably arranged on the second slide rails through two third sliders, the tightening machine connecting plate is installed on the third slide, a plurality of servo tightening machines are installed on the tightening machine connecting plate, and the output shaft of each servo tightening machine is installed with a second tightening head, the fourth positioning tool is installed on the fifth workbench, and the second tightening head is opposite to the fourth positioning tool, one end of the caliper anti-rotation fixing fork is installed on the fifth workbench, and the other end of the caliper anti-rotation fixing fork extends between the second tightening head and the fourth positioning tool.

[0017] In the above-mentioned automobile front axle assembly line, the conveyor chain module includes: a fixed base, a drive motor, and a chain; the drive motor is installed on the fixed base, the chain is installed on the output shaft of the drive motor, and the drive motor drives the chain to rotate.

[0018] Compared with the prior art, the above technical solution has the following positive effects:

[0019] 1. The press-fitting of anti-rotation screws is changed from manual rotation to automatic rotation by the equipment, which reduces the labor intensity;

[0020] 2. Infrared runout meter detection replaces the original manual operation dial indicator detection method. Manual detection is not stable and cannot achieve 100% detection. Assemblies that are not detected may be unqualified.

[0021] 3. The tightening of slotted nuts has been changed from manual tightening with a torque wrench to tightening with a push button gun, so that the oil clearance of the bearing assembly is consistent;

[0022] 4. The automatic flow of the conveyor chain module replaces the original manual handling, reducing the labor intensity;

[0023] 5. The grease injection process for bearings has been changed from manual application to quantitative grease injection using equipment to ensure consistent grease levels inside the bearings. Manual grease injection can result in insufficient or excessive grease. Insufficient grease can lead to insufficient lubrication of the bearings, causing abnormal noise and shortening their service life. Excessive grease injection can cause problems such as oil leakage from the oil seal.

[0024] 6. The tightening of the caliper bolts has been changed from manual tightening using a torque wrench to tightening using a servo tightening machine, which can achieve stable and traceable torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an exploded view of the automobile front axle assembly in the prior art.

[0026] Figure 2 The utility model is a schematic diagram of an automobile front axle assembly line.

[0027] Figure 3 The utility model is a flow chart of an automobile front axle assembly line.

[0028] Figure 4 This is a schematic diagram of the anti-rotation screw press-fitting module and the bearing press-fitting module in the present invention.

[0029] Figure 5 This is a schematic diagram of the brake disc assembly module in the present invention.

[0030] Figure 6 This is a schematic diagram of the bearing assembly module in the present invention.

[0031] Figure 7 It is a schematic diagram of the dust plate, front steering knuckle assembly module and caliper assembly module in the present invention.

[0032] Figure 8 It is a schematic diagram of the steering knuckle sub-assembly assembly module in the present invention.

[0033] Figure 9 Schematic diagram of the conveyor chain module.

[0034] In the prior art: 001, caliper assembly; 002, front steering knuckle; 003, caliper screw; 004, dust plate; 005, oil seal assembly; 006, rear bearing assembly; 007, ring gear; 008, front brake disc; 009, brake disc screw; 0010, anti-rotation screw; 0011, bearing seat; 0012, front bearing assembly; 0013, gasket; 0014, slotted nut; 0015, cotter pin; 0016, dust cap; 0017, dust plate screw; 01, component one; 02, component two; 03, component three; 04, component four; 05, component five; 06, component six; 07, component seven; 08, component eight;

[0035] This application: 1. Anti-rotation screw press-fitting module; 11. First workbench; 12. First press; 13. First press head; 14. Bearing seat positioning tooling;

[0036] 2. Bearing press-fitting module; 21. Second workbench; 22. Second press; 23. Second pressing head; 24. Bearing positioning tooling;

[0037] 3. Brake disc assembly module; 31. Third workbench; 32. First column module; 33. First cylinder; 34. Tightening machine; 35. First tightening head; 36. First positioning tool; 37. Linear rail; 38. Tightening machine fixing base; 39. Sensor;

[0038] 4. Bearing assembly module; 41. Grease injection piping system; 42. Third press; 43. Third press head; 44. Second positioning tool; 45. Fourth workbench; 46. Second column module; 461. Track; 47. Second cylinder; 48. Baffle; 49. Oil spray seat;

[0039] 5. Dust plate and front steering knuckle assembly module; 51. Fifth workbench; 52. Tooling; 53. Third transfer tray;

[0040] 6. Steering knuckle subassembly assembly module; 61. Sixth workbench; 62. Third column module; 63. Fixing plate; 64. Third cylinder; 65. First slide; 66. Servo motor; 67. Rotating shaft; 68. Synchronous belt; 69. Third positioning fixture; 610. Fourth cylinder; 620. Second slide; 630. First slide rail; 640. Fifth cylinder; 650. Fixing seat; 660. Push button gun; 670. Infrared runout meter; 680. Linear rail structure; 690. Guide rail; 691. Chuck;

[0041] 7. Caliper assembly module; 71. Fourth column module; 72. Sixth cylinder; 73. Cylinder support; 74. Third slide; 75. Second slide rail; 76. Tightening machine connection plate; 77. Servo tightening machine; 78. Second tightening head; 79. Caliper anti-rotation fixing fork; 710. Fourth positioning tool;

[0042] 8. Conveyor chain module; 9. First flow tray; 10. Second flow tray. DETAILED DESCRIPTION

[0043] The present invention will be further described below with reference to the accompanying drawings and specific implementations, but they are not intended to limit the present invention.

[0044] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by those familiar with this technology. They are not used to limit the conditions for implementation of the present invention and therefore have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships should also be considered as the scope of implementation of the present invention without substantially changing the technical content.

[0045] like Figures 1 to 9 As shown, a preferred embodiment of an automobile front axle assembly line is shown, which includes: an anti-rotation screw pressing module 1, a bearing pressing module 2, a brake disc assembly module 3, a bearing assembly module 4, a dust plate and front steering knuckle assembly module 5, a steering knuckle sub-assembly assembly module 6, a caliper assembly module 7, and a conveyor chain module 8.

[0046] The anti-rotation screw pressing module 1, the bearing pressing module 2, the brake disc assembly module 3, the bearing assembly module 4, the dustproof plate and front steering knuckle assembly module 5, the steering knuckle sub-assembly assembly module 6, and the caliper assembly module 7 are all arranged on one side of the conveyor chain module 8; the anti-rotation screw pressing module 1 and the bearing pressing module 2 are both arranged at the input end of the conveyor chain module 8, and the anti-rotation screw pressing module 1 and the bearing pressing module 2 are connected by the first flow tray 9; the brake disc assembly module 3, the bearing assembly module 4, the dustproof plate and front steering knuckle assembly module 5, the steering knuckle assembly module 6 and the caliper assembly module 7 are arranged in sequence from the input end of the conveyor chain module 8 to the output end of the conveyor chain module 8.

[0047] In actual use, the following steps are involved:

[0048] Step 1: The anti-rotation screw press-fitting module 1 installs the anti-rotation screw 0010 and the bearing seat 0011 together to form an assembly 01. The assembly 01 passes through the first flow tray 9 and enters the bearing press-fitting module 2;

[0049] Step 2: The bearing press module 2 presses the rear bearing assembly 006 and the front bearing assembly 0012 onto the component 1 01 to form the component 2 02. The component 02 enters the brake disc assembly module 3 through the conveyor chain module 8;

[0050] Step 3: The brake disc assembly module 3 assembles the component 2 02 together with the front brake disc 008 and the brake disc screw 009 to form the component 3 03. The component 3 03 enters the bearing assembly module 4 through the conveyor chain module 8;

[0051] Step 4: The bearing assembly module 4 assembles the component 3 03 with the oil seal assembly 005, the rear bearing assembly 006, and the ring gear 007 to form the component 4 04. The bearing assembly module 4 can also assemble the component 4 04 with the front bearing assembly 0012 to form the component 5 05.

[0052] Step 5: Then the dust plate and front steering knuckle assembly module 5 installs the dust plate 004, the front steering knuckle 002 and the dust plate screw 0017 together to form component six 06. Component 05 and component six 06 enter the steering knuckle assembly assembly module 6 through the conveyor chain module 8;

[0053] Step 6: Steering knuckle assembly assembly module 6: Install component five 05, component six 06, gasket 0013, slotted nut 0014, cotter pin 0015 and dust cap 0016 together to form component seven 07;

[0054] Step 7: Finally, the caliper assembly assembly module 7 installs component seven, caliper assembly 001 and caliper screw 003 together to form component eight 08 to complete the assembly of the vehicle front axle assembly.

[0055] The present invention also has the following implementation methods based on the above:

[0056] Furthermore, an automobile front axle assembly line, wherein the anti-rotation screw pressing module 1 includes: a first press 12, a first pressing head 13, a bearing seat positioning tool 14, and a first workbench 11; the first press 12 is installed on the first workbench 11, the first pressing head 13 is installed on the first press 12, the bearing seat positioning tool 14 is installed on the first press 12, and the first pressing head 13 is facing the bearing seat positioning tool 14. Specifically, the bearing seat 0011 is placed on the bearing seat positioning tool 14, and after the pressing equipment is started, the bearing seat positioning tool 14 starts to rotate automatically. After rotation, the five anti-rotation screws 0010 are pressed and installed in turn to replace manual rotation, and then the component 101 enters the next process through the first flow tray 9. The first flow tray 9 is installed on the first workbench 11 and the second tooling table 21 by screws.

[0057] Furthermore, an automotive front axle assembly line is provided, wherein the bearing press-fitting module 2 includes: a second press 22, a second pressing head 23, a second workbench 21, and a bearing positioning tool 24; the second press 22 is mounted on the second workbench 21, the second pressing head 23 is mounted on the second press 22, and the bearing positioning tool 24 is mounted on the second press 22, with the second pressing head 23 facing the bearing positioning tool 24. The two ends of the first flow tray 9 are respectively mounted on the first workbench 11 and the second workbench 21. Specifically, component 01 is placed on the bearing positioning tool 24, and the outer rings of the rear bearing assembly 006 and the front bearing assembly 0012 are respectively placed into the bearing positioning tool 24. The equipment is started for press-fitting, and the pressed component 02 enters the next process.

[0058] Furthermore, an automobile front axle assembly line is provided, wherein the brake disc assembly module 3 includes: a first cylinder 33, a tightening machine 34, a first tightening head 35, a first positioning tool 36, a first column module 32, a sensor 39, and a third workbench 31; the first cylinder 33 is installed on the third workbench 31 through the first column module 32, the tightening machine 34 is installed on the output shaft of the first cylinder 33, the first tightening head 35 is installed on the output shaft of the tightening machine 34, the first positioning tool 36 is installed on the third workbench 31, and the first tightening head 35 is opposite to the first positioning tool 36, and the sensor 39 is installed on the first positioning tool 36. Specifically, the front brake disc 008 is placed on the first positioning fixture 36, component two 02 is assembled with the brake disc 008, and is connected using the brake disc screw 009. After the start button is pressed, the first positioning fixture 36 will rotate to the specified position to provide a signal to the sensor 39. The tightening machine 34 is guided downward by the linear rail 37, and the first tightening head 35 connected to the tightening machine 34 rotates the brake disc screw 009 to the set torque of the tightening value. The first positioning fixture 36 tightens the remaining four brake disc screws 009 in turn by rotation. After the operation is completed, the first cylinder 33 is reset through the linear rail 37, and the component three 03 is taken out and transferred to the next process through the conveyor chain module 8.

[0059] Furthermore, an automobile front axle assembly line is provided, wherein the first column module 32 is longitudinally provided with two linear rails 37, the tightening machine 34 is installed on the output shaft of the first cylinder 33 through the tightening machine fixing seat 38, and the tightening machine fixing seat can be slidably installed on the two linear rails 37 through two first sliders.

[0060] Furthermore, an automobile front axle assembly line, wherein the bearing assembly module 4 includes: a grease injection pipeline system 41, a third press 42, a third pressure head 43, a second positioning tool 44, a fourth workbench 45, a second flow tray 10, a second column module 46, a baffle 48, a second cylinder 47, and an oil spray seat 49; the third press 42 and the second column module 46 are respectively installed on both sides of the upper surface of the fourth workbench 45, and a second flow tray 10 is provided between the third press 42 and the second column module 46, the grease injection pipeline system 41 is installed on the third press 42, the third pressure head 43, the second positioning tool 44, the fourth workbench 45, the second flow tray 10, the second column module 46, the baffle 48, the second cylinder 47, and the oil spray seat 49; the third press 42 and the second column module 46 are respectively installed on both sides of the upper surface of the fourth workbench 45, and the second flow tray 10 is provided between the third press 42 and the second column module 46. 43 is installed on the third press 42, and the grease injection pipeline system 41 is connected to the third press head 43, the second positioning tool 44 is installed on the third press 42, and the third press head 43 is opposite to the second positioning tool 44, the second cylinder 47 is installed at the upper end of the second column module 46, and the output shaft of the second cylinder 47 is installed with a baffle 48, the second column module 46 is provided with two tracks 461 in the longitudinal direction, the baffle 48 is slidably arranged on the two tracks 461 through two guide blocks, the oil injection seat 49 is installed on the fourth workbench 45, the baffle 48 is opposite to the oil injection seat 49, and the grease injection pipeline system 41 is connected to the oil injection seat 49. Specifically, place component three 03 on the second positioning tool 44, position the oil seal assembly 005 on the end face of the third pressure head 43, and then place the gear ring 007 and the inner ring of the rear bearing assembly 006 in component three 03 respectively; start the third pressure head 43 of the equipment to press it downward, and the oil seal assembly 005 and the gear ring 007 are pressed into component three 03 as qualified. At the same time, the grease injection pipeline system 41 sprays grease through the hole inside the third pressure head 43 to quantitatively inject grease into the bearing. Quantitative grease injection can ensure the consistency of the grease amount inside the bearing; manual grease injection will result in too little or too much grease. Too little grease will cause insufficient lubrication of the bearing to produce abnormal noise and reduce its service life; too much grease will result in insufficient lubrication of the bearing to produce abnormal noise and reduce its service life; too much grease will result in insufficient lubrication of the bearing to produce abnormal noise and reduce its service life. This causes problems such as grease leaking from the oil seal; after greasing, component four 04 is placed on the second flow tray 10 and moved to the next process; component four 04 is placed on the oil spray seat 49 for positioning, and then the inner ring of the front bearing assembly 0012 is placed into component four 04; the equipment is started, and the second cylinder 47 guides the control baffle 48 to slide downward through the track 461, and the baffle 48 slides downward to fit the front bearing assembly 0012, and at the same time, the grease injection pipeline system 41 branch pipeline injects grease into the front bearing assembly 0012 of component four 04 through the oil spray seat 49; after filling, the baffle 48 returns to its position; take out component five 05 and flow it through the conveyor chain module 8 to the next process.

[0061] Furthermore, an automotive front axle assembly line includes a dust shield and front steering knuckle assembly module 5 comprising a fixture 52, a third transfer tray 53, and a fifth workbench 51. The fixture 52 is mounted on the fifth workbench 51, and the third transfer tray 53 is installed between the fixture 52 and the conveyor chain module 8. Specifically, the front steering knuckle 002 is positioned on the fixture 52, and the dust shield 004 is connected to the front steering knuckle 002 using dust shield screws 0017. After the assembly 6 06 is removed from the line, it is placed on the third transfer tray 53 and moved to the next process step.

[0062] An automobile front axle assembly line, wherein the steering knuckle sub-assembly assembly module 6 includes: a fixed plate 63, a third column module 63, a third cylinder 64, a servo motor 66, a synchronous belt 68, a rotating shaft 67, a chuck 691, a button gun 660, a third positioning tool 69, a fixed seat 650, a first slide 65, a sixth workbench 61, a second slide 620, a fourth cylinder 610, an infrared vibration meter 670, and a fifth cylinder 640; the fixed plate 63 and the third column module 62 are respectively mounted on both sides of the upper surface of the sixth workbench 61, the third cylinder 64 is mounted on the third column module 62, and the output shaft of the third cylinder 64 is mounted on the first slide 65, the first slide 65 is slidably mounted on the third column module 62 through a linear rail structure 680, the servo motor 66 and the rotating shaft 67 are both mounted on the first slide 65, The output shaft of the service motor 66 and the rotating shaft 67 are connected by a synchronous belt 68, the chuck 691 is installed on the rotating shaft 67, the third positioning tool 69 is installed on the sixth workbench 61, and the chuck 691 is opposite to the third positioning tool 69, the fourth cylinder 610 is installed on the fixed plate 63, the output shaft of the fourth cylinder 610 is installed on the second slide 620, and the fixed plate 63 is provided with a first slide rail 630, the second slide 620 is slidably installed on the first slide rail 630 through the second slider, the fifth cylinder 640 is installed on the second slide 620, the output shaft of the fifth cylinder 640 is installed on the fixed seat 650, the second slide 620 is longitudinally provided with a guide rail 690, the fixed seat 650 is slidably installed on the guide rail 690 through the guide block, the button gun 660 is installed on the fixed seat 650, and the infrared vibration meter 670 is installed on the third column module 62.Specifically, the sixth component 06 and the fifth component 05 are placed on the third positioning fixture 69 for positioning, and the gasket 0013 and the slotted nut 0014 are assembled in sequence; after starting the equipment, the fourth cylinder 610 drives the second slide 62 to slide to the right through the first slide rail 630, and at the same time, the fifth cylinder 640 on the second slide 620 drives the fixed seat 650 to slide downward through the guide rail 690, and the button gun 660 sleeve on the fixed seat 650 will be sleeved on the slotted nut 0014, automatically tightening the slotted nut 0014. 4 Tighten to the set torque. After tightening, the fifth cylinder 640 and the fourth cylinder 610 return to their positions respectively. Next, manually use the cotter pin 0015 to fix the nut to prevent it from loosening. The tightening of the slotted nut 0014 is changed from the original manual tightening with a torque wrench to the tightening process of the push button gun 660, so that the oil gap of the bearing assembly is consistent, so that the rotational torque of the brake disc meets the driving requirements, the service life of the brake is increased, and the maintenance cycle of the vehicle is reduced. Then cover the slotted nut 0014 with the dust cap 0016 and start The third cylinder 64 drives the first slide 65 to slide downward through the guide of the linear rail structure 680, and the chuck 691 is pressed and sealed by the pressure of the third cylinder 64 to complete the assembly. At the same time, the infrared runout meter 670 fixed on the third column module 62 will extend, and the servo motor 66 fixed on the third column module 62 will output power. The power drives the chuck 691 on the rotating shaft 67 to rotate through the synchronous belt 68. The rotation of the chuck 691 will drive the front brake disc 008 to rotate. While the front brake disc 008 rotates, the infrared runout meter 670 performs runout detection on the disc surface. The purpose of the runout detection is to confirm that the assembly meets the assembly requirements. If the runout is unqualified, it will directly affect the braking performance. After the runout detection, the servo motor 66 stops rotating, and the infrared runout meter 670 and the third cylinder 64 return to their positions. The infrared runout detection replaces the original manual dial indicator detection method. Manual detection is neither stable nor 100% detectable. The removed component 707 is transferred to the next process through the conveyor chain module 8.

[0063] Furthermore, an automobile front axle assembly line is provided, wherein the caliper assembly assembly module 7 includes: a fourth column module 71, a sixth cylinder 72, a cylinder support 73, a third slide 74, a servo tightening machine 77, a tightening machine connecting plate 76, a second tightening head 78, a caliper anti-rotation fixing fork 79, and a fourth positioning tool 710; the fourth column module 710 is mounted on the fifth workbench 51, the sixth cylinder 72 is mounted on the fourth column module 710 through the cylinder support 73, the output shaft of the sixth cylinder 72 is mounted on the third slide 74, and the fourth column module 71 is longitudinally provided with two second slides. Rail 75, the third slide 74 is slidably arranged on the second slide rail 75 through two third sliders, the tightening machine connecting plate 76 is installed on the third slide 74, and a plurality of servo tightening machines 77 are installed on the tightening machine connecting plate 76. A second tightening head 78 is installed on the output shaft of each servo tightening machine 77, and the fourth positioning tool 710 is installed on the fifth workbench 51, and the second tightening head 78 is opposite to the fourth positioning tool 710. One end of the caliper anti-rotation fixing fork 79 is installed on the fifth workbench 51, and the other end of the caliper anti-rotation fixing fork 79 extends out between the second tightening head 78 and the fourth positioning tool 710. Specifically, component seven 07 is placed on the fourth positioning fixture 710, the caliper assembly 001 is installed and connected with the caliper bolt 003, and then the caliper anti-rotation fixing fork 79 is flipped to fix the caliper assembly 001 to prevent rotation; the equipment is started, and the sixth cylinder 72 drives the third slide 74 to slide downward through the second slide rail 75. At the same time, the tightening machine connecting plate 76 fixed on the third slide 74 slides downward at the same time, and the servo tightening machine 77 on the tightening machine connecting plate 76 is connected to the second tightening head 78. The second tightening head 78 tightens the two caliper bolts 003 to the set value and then stops rotating; the sixth cylinder 72 returns to its position to take out component eight 08 and passes through the conveyor chain module 8 off the line, and all parts are assembled at the same time.

[0064] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An automobile front axle assembly line, characterized in that: include: Anti-rotation screw press-fitting module, bearing press-fitting module, brake disc assembly module, bearing assembly module, dust shield and front steering knuckle assembly module, steering knuckle sub-assembly assembly module, caliper assembly module, conveyor chain module; The anti-rotation screw press-fitting module, the bearing press-fitting module, the brake disc assembly module, the bearing assembly module, the dust plate and front steering knuckle assembly module, the steering knuckle sub-assembly assembly module, and the caliper assembly module are all arranged on one side of the conveyor chain module; The anti-rotation screw press-fitting module and the bearing press-fitting module are both arranged at the input end of the conveyor chain module, and the anti-rotation screw press-fitting module and the bearing press-fitting module are connected via a first flow tray; The brake disc assembly module, the bearing assembly module, the dust plate and front steering knuckle assembly module, the steering knuckle assembly module and the caliper assembly module are arranged in sequence from the input end of the conveyor chain module to the output end of the conveyor chain module.

2. The automobile front axle assembly line according to claim 1, characterized in that: The anti-rotation screw pressing module includes: a first press, a first pressing head, a bearing seat positioning tooling, and a first workbench; the first press is installed on the first workbench, the first pressing head is installed on the first press, the bearing seat positioning tooling is installed on the first press, and the first pressing head is facing the bearing seat positioning tooling.

3. The automobile front axle assembly line according to claim 2, characterized in that: The bearing pressing module includes: a second press, a second pressing head, a second workbench, and a bearing positioning tool; the second press is installed on the second workbench, the second pressing head is installed on the second press, the bearing positioning tool is installed on the second press, and the second pressing head is facing the bearing positioning tool, and the two ends of the first flow tray are respectively installed on the first workbench and the second workbench.

4. The automobile front axle assembly line according to claim 1, characterized in that: The brake disc assembly module includes: a first cylinder, a tightening machine, a first tightening head, a first positioning tool, a first column module, a sensor, and a third workbench; the first cylinder is installed on the third workbench through the first column module, the tightening machine is installed on the output shaft of the first cylinder, the first tightening head is installed on the output shaft of the tightening machine, the first positioning tool is installed on the third workbench, and the first tightening head is facing the first positioning tool, and the sensor is installed on the first positioning tool.

5. The automobile front axle assembly line according to claim 4, characterized in that: The first column module is longitudinally provided with two linear rails. The tightening machine is mounted on the output shaft of the first cylinder via a tightening machine fixing seat, and the tightening machine fixing seat can be slidably mounted on the two linear rails via two first sliding blocks.

6. The automobile front axle assembly line according to claim 1, characterized in that: The bearing assembly module includes: a grease injection pipeline system, a third press, a third pressure head, a second positioning tool, a fourth workbench, a second flow tray, a second column module, a baffle, a second cylinder, and an oil spray seat; the third press and the second column module are respectively installed on both sides of the upper surface of the fourth workbench, and the second flow tray is provided between the third press and the second column module, the grease injection pipeline system is installed on the third press, the third pressure head is installed on the third press, and the grease injection pipeline system is connected to the third pressure head, the second positioning tool is installed on the third press, and the third pressure head is opposite to the second positioning tool, the second cylinder is installed at the upper end of the second column module, and the output shaft of the second cylinder is installed with the baffle, the second column module is provided with two rails in the longitudinal direction, the baffle is slidably arranged on the two rails through two guide blocks, the oil spray seat is installed on the fourth workbench, the baffle is opposite to the oil spray seat, and the grease injection pipeline system is connected to the oil spray seat.

7. The automobile front axle assembly line according to claim 1, characterized in that: The dust plate and front steering knuckle assembly module includes: a tooling, a third flow tray, and a fifth workbench; the tooling is installed on the fifth workbench, and the third flow tray is installed between the tooling and the conveyor chain module.

8. The automobile front axle assembly line according to claim 1, characterized in that: The steering knuckle sub-assembly assembly module includes: a fixed plate, a third column module, a third cylinder, a servo motor, a synchronous belt, a rotating shaft, a chuck, a push button gun, a third positioning tool, a fixed seat, a first slide, a sixth workbench, a second slide, a fourth cylinder, an infrared vibrator, and a fifth cylinder; the fixed plate and the third column module are respectively installed on both sides of the upper surface of the sixth workbench, the third cylinder is installed on the third column module, and the output shaft of the third cylinder is installed on the first slide, the first slide is slidably installed on the third column module through a linear rail structure, the servo motor and the rotating shaft are both installed on the first slide, and the output shaft of the servo motor and the rotating shaft are connected to each other through a linear rail structure. The chuck is installed on the rotating shaft through the synchronous belt transmission connection, the third positioning tool is installed on the sixth workbench, and the chuck is opposite to the third positioning tool, the fourth cylinder is installed on the fixed plate, the output shaft of the fourth cylinder is installed on the second slide, and the fixed plate is provided with a first slide rail, the second slide is slidably installed on the first slide rail through the second slider, the fifth cylinder is installed on the second slide, the output shaft of the fifth cylinder is installed on the fixed seat, the second slide is longitudinally provided with a guide rail, the fixed seat is slidably installed on the guide rail through a guide block, the button gun is installed on the fixed seat, and the infrared vibration meter is installed on the third column module.

9. The automobile front axle assembly line according to claim 7, characterized in that: The caliper assembly assembly module includes: a fourth column module, a sixth cylinder, a cylinder support, a third slide, a servo tightening machine, a tightening machine connecting plate, a second tightening head, a caliper anti-rotation fixing fork, and a fourth positioning tool; the fourth column module is installed on the fifth workbench, the sixth cylinder is installed on the fourth column module through the cylinder support, the output shaft of the sixth cylinder is installed on the third slide, the fourth column module is longitudinally provided with two second slide rails, the third slide is slidably arranged on the second slide rails through two third sliders, the tightening machine connecting plate is installed on the third slide, several servo tightening machines are installed on the tightening machine connecting plate, and the output shaft of each servo tightening machine is installed with a second tightening head, the fourth positioning tool is installed on the fifth workbench, and the second tightening head is opposite to the fourth positioning tool, one end of the caliper anti-rotation fixing fork is installed on the fifth workbench, and the other end of the caliper anti-rotation fixing fork extends out between the second tightening head and the fourth positioning tool.

10. The automobile front axle assembly line according to claim 1, characterized in that: The conveyor chain module includes: a fixed base, a driving motor, and a chain; the driving motor is installed on the fixed base, the chain is installed on the output shaft of the driving motor, and the driving motor drives the chain to rotate.

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