Automobile steering gear assembly automatic assembly line

Abstract

The invention discloses an automatic assembly line for an automobile steering gear component, comprising a mounting seat detection machine, an end cover assembly machine, a terminal assembly machine, an inductor assembly machine, a capacitor assembly machine, a characteristic detection machine and a coating machine. The mounting seat detection machine detects the height of a connector on the mounting seat, the height of a plug-in sheet, and the size of an inner hole and a through hole of the connector; the end cover assembly machine mounts the end cover on the mounting seat; the terminal assembly machine assembles a connecting terminal on the mounting seat so that the connecting terminal and the connector are correspondingly connected; the inductor assembly machine flattens and cuts the pins of the inductor, and then assembles the inductor on the mounting seat so that the inductor is connected to the connecting terminal; the capacitor assembly machine cuts and bends the pins of the capacitor, and then assembles the capacitor on the mounting seat so that the capacitor is connected to the connecting terminal; the characteristic detection machine performs corresponding characteristic detection on the connecting terminal, the inductor and the capacitor assembled in the mounting seat; and the coating machine is used for coating the surface of the connecting terminal.

Description

Technical Field

[0001] The invention relates to the assembly of an automobile steering gear, in particular to an automatic assembly line of an automobile steering gear component. Background Art

[0002] The automobile steering gear is an important component of the automobile. With the development of science and technology, the processing requirements for automobile steering gears are also constantly improving. In order to connect with other components in the automobile to achieve the corresponding steering effect, the assembly accuracy of the automobile steering gear must meet the corresponding requirements. Among them, in the production and processing of the components of the automobile steering gear, it involves assembling components such as connectors, end covers, wiring terminals, inductors and capacitors on the front and back of their mounting seats as required. Among them, when assembling inductors and capacitors, since the pins of the incoming materials often do not meet the assembly requirements, the pins need to be flattened and cut or cut and bent during assembly. The mounting seat also needs to be glued and positioned before the processed inductors and capacitors can be assembled in the corresponding positions of the mounting seat. There are many processes, and it is not easy to ensure efficient and accurately positioned assembly.

[0003] Therefore, there is an urgent need for an automatic assembly line for automobile steering gear components with compact structure, high assembly precision, high efficiency and high automation to overcome the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic assembly line for automobile steering gear components which can realize automated flow operation, has a compact structure, high efficiency and high assembly precision.

[0005] In order to achieve the above-mentioned purpose, the present invention discloses an automatic assembly line for automobile steering gear components, which is used to assemble the end caps, connecting terminals, inductors and capacitors of automobile steering gear components on their mounting seats. The automatic assembly line for automobile steering gear components includes a mounting seat detection machine, an end cap assembly machine, a terminal assembly machine, an inductor assembly machine, a capacitor assembly machine, a characteristic detection machine and a coating machine which are electrically connected to a control system and docked in sequence. The mounting seat detection machine is used to detect the height of the connector on the mounting seat, the height of the plug-in piece in the connector, the size of the inner hole of the connector and the size of the through hole, and to convey the mounting seat after detection; the end cap assembly machine is used to install the end cap on the mounting seat after detection, and to convey the mounting seat with the end cap assembled; the terminal assembly machine is used to assemble a plurality of connecting terminals in a stacked manner on the mounting seat so that the terminals correspond to the connectors. The inductor assembly machine is used to flatten and cut the pins of the inductor, and then assemble the inductor on the mounting seat so that the inductor is connected to one of the connecting terminals, and then the mounting seat on which the inductor has been assembled is transported; the capacitor assembly machine is used to cut and bend the pins of the capacitor, and then assemble the capacitor on the mounting seat so that the capacitor is connected to the other connecting terminals, and then the mounting seat after the capacitor is assembled is transported; the characteristic detection machine is used to perform corresponding characteristic detection on the connecting terminals, inductors and capacitors assembled in the mounting seat, and then the mounting seat after the detection is transported; the coating machine is used to coat the surface of the connecting terminals in the mounting seat after the characteristic detection, and then the coated mounting seat is transported; the control system is used to control the coordinated actions between the machines.

[0006] Compared with the prior art, the automatic assembly line of the automobile steering gear assembly of the present invention first automatically detects the height of the connector on the mounting seat and the height of the plug-in piece inside, the size of the inner hole of the connector and the size of the through hole through the mounting seat detection machine before assembling the connecting terminals and other components on the mounting seat. The detection accuracy is high and efficient, and the accuracy of subsequent assembly is effectively guaranteed. In addition, the end cap assembly machine, the terminal assembly machine, the inductor assembly machine and the capacitor assembly machine successively complete the automatic assembly of the end cap, the connecting terminal, the inductor and the capacitor on the mounting seat, and the inductor and the capacitor are automatically flattened, cut and sheared and bent when assembled on the mounting seat. The machines are connected in sequence, and the manual transfer operation in different processes is omitted. The assembly accuracy is high and the degree of automation is high. In addition, the connecting terminal, the inductor and the capacitor assembled in the mounting seat are subjected to corresponding characteristic detection by the characteristic detection machine, and the surface of the connecting terminal in the mounting seat is coated by the coating machine to further ensure the quality of assembly.

[0007] Preferably, in the mounting seat inspection machine, the end cap assembly machine and the coating machine, the mounting seat is rotated with its front side facing upward, and in the terminal assembly machine, the inductor assembly machine, the capacitor assembly machine and the characteristic inspection machine, the mounting seat is rotated with its back side facing upward.

[0008] Preferably, the automobile steering gear assembly automatic assembly line also includes a first jig and a second jig, each of the first jig and the second jig having a contoured groove corresponding to the outer contour of the mounting seat, a retractable side top block being provided at the edge of the contoured groove, a positioning protrusion being provided in the contoured groove of the first jig, the mounting seat being clamped between the positioning protrusion and the inner wall of the contoured groove with its front side facing upward, and the positioning portion on the bottom side of the mounting seat being clamped with the positioning protrusion, a through hole corresponding to the shape of the protrusion of the mounting seat being provided in the contoured groove of the second jig, the mounting seat being clamped in the contoured groove with its back side facing upward, and the protrusion on the top side of the mounting seat being penetrated into the corresponding through hole.

[0009] Preferably, the automobile steering gear assembly automatic assembly line includes a first clamp for transferring the mounting seat, the first clamp having a clamping surface corresponding to the outer contour of the mounting seat, the clamping surface being in a "V" shape or an arc shape, and an anti-static PU is provided in the area of ​​the clamping surface in contact with the mounting seat.

[0010] Preferably, the mounting seat detection machine comprises a turntable and a first loading device, a height detection device, an inner hole detection device, an image detection device, a flipping device, a transparency detection device, a laser engraving device and a first unloading device arranged in sequence along the rotation direction of the turntable, the first loading device is used to place the mounting seat on the turntable with its front side facing upward, the turntable is used to transfer the mounting seat placed thereon, the height detection device is used to detect the height of the connector on the mounting seat and the height of the plug-in sheet in the connector, and the inner hole detection device is used to detect the height of the connector after the height detection. The size of the inner hole of the connector is detected, the image detection device is used to detect the shape of the through hole of the connector after the inner hole detection, the flipping device is used to remove the mounting seat from the turntable after the through hole detection and flip it 180°, and then put the mounting seat with the back facing up after flipping back on the turntable, the transparency detection device is used to detect the transparency of the mounting seat after flipping, the laser engraving device is used to laser code the mounting seat after the light transmission detection, and the first blanking device is used to divert and blank the mounting seat after the coding is completed.

[0011] Preferably, the terminal assembly machine includes a hot melt device, which includes a hot melt head, a first linear drive module that drives the hot melt head to move linearly up and down, and a heat insulation component connected between the first linear drive module and the hot melt head. The hot melt head has a plurality of contacts and a heating rod connected to the contacts. A temperature sensor is also provided at the hot melt head for monitoring the temperature of the hot melt head.

[0012] Preferably, the inductor assembly machine includes a second loading device, which includes a second linear drive module, a rotating driver connected to the output end of the second linear drive module, a clamping driver connected to the output end of the rotating driver, and the first clamping jaw connected to the output end of the clamping driver. The bottom end of the clamping driver is connected to a pressure rod at a position between the two clamping parts of the first clamping jaw facing the inductor, and the pressure rod can abut against the inductor.

[0013] Preferably, the capacitor assembly machine includes a conveying device and a glue dispensing device, a first assembly device, a second assembly device and a second blanking device arranged in sequence along the conveying direction of the conveying device. A shearing device, a bending device, a detection device and a transfer device are provided between the glue dispensing device and the first assembly device and between the second assembly device and the second blanking device. The conveying device is used to convey the mounting seat, the glue dispensing device is used to dispense glue on the assembly position of the mounting seat, the two shearing devices are used to shear the pins of the first capacitor and the pins of the second capacitor respectively, and the two bending devices are used to be respectively used to bend the pins of the first capacitor and the pins of the second capacitor after the pins are sheared. Bending is performed, the two detection devices are respectively used to detect the first capacitor and the second capacitor after bending, the two transfer devices are respectively arranged between the shearing device, the bending device and the detection device on the corresponding side, and are used for transferring the first capacitor or the second capacitor after the shearing on the corresponding side and the first capacitor or the second capacitor after bending, the first assembling device is used to assemble the first capacitor after detection to the mounting seat after gluing, the second assembling device is used to assemble the second capacitor after detection to the mounting seat after gluing, and the second unloading device is used for shunting and unloading the mounting seat where the first capacitor and the second capacitor have been assembled.

[0014] Preferably, the characteristic detection machine includes a capacitance characteristic detection device, which includes a pressure plate, a plurality of probes installed on the pressure plate, a crimping driver connected to the pressure plate, a bending plate and a bending driver connected to the bending plate, the crimping driver can drive the pressure plate to move linearly up and down so that the probes can abut against the pins of the capacitor, and the bending driver can drive the bending plate to move linearly towards or away from the mounting seat.

[0015] Preferably, the coating machine includes a third loading device, a cleaning device, a coating device and a third unloading device. The third loading device is arranged beside the cleaning device and the coating device, and is used to take the mounting seat to the cleaning device and cooperate with the cleaning device to clean and remove dust from the mounting seat. The third loading device is also used to flip the cleaned mounting seat 180° and place it on the coating table of the coating device. The coating device includes a coating box detachably connected to the bottom of the coating table and a coating box suspended on the coating table. The coating head in the coating box has a receiving groove with a notch facing upward, and the notch of the receiving groove is lower than the liquid level of the coating liquid in the coating box. The coating head can move linearly along the Z-axis direction relative to the coating box to approach or move away from the coating table, so that the coated part of the connecting terminal in the mounting seat can be immersed in the coating liquid carried by the receiving groove. The coating box of the coating device can move linearly towards or away from the coating table, and the third unloading device is used for cooling, storing and transferring the mounting seat after coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of an automobile steering gear assembly of the present invention at one angle.

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the automobile steering gear assembly of the present invention from another angle.

[0018] Figure 3 It is a schematic diagram of the automatic assembly line of the automobile steering gear assembly of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the first fixture of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the second fixture of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the first clamping jaw of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the second clamping jaw of the present invention.

[0023] Figure 8 It is a planar structural schematic diagram of the mounting seat detection machine of the present invention.

[0024] Fig. 9 It is a three-dimensional structural schematic diagram of the hot melt device of the terminal assembly machine of the present invention.

[0025] Fig.10 It is a schematic diagram of the three-dimensional structure of the second loading device of the inductor assembly machine of the present invention.

[0026] Fig.11 It is a planar structural schematic diagram of the capacitor assembly machine of the present invention.

[0027] Fig.12 It is a three-dimensional structural schematic diagram of the bending device of the capacitor assembly machine of the present invention.

[0028] Fig.13 It is a side view of the capacitance characteristic detection device of the characteristic detection machine of the present invention.

[0029] Fig.14 It is a schematic diagram of the planar structure of the coating machine of the present invention.

[0030] Fig.15 It is a schematic diagram of the three-dimensional structure of the coating device of the coating machine of the present invention.

[0031] Fig.16 It is a schematic diagram of the three-dimensional structure of the third feeding device of the coating device of the present invention. DETAILED DESCRIPTION

[0032] In order to explain the content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0033] See also Figures 1 to 3The present invention discloses an automatic assembly line 100 for an automobile steering gear assembly, which is used to realize an automated assembly line operation of assembling an end cover 202, a connecting terminal 203, an inductor 204 and a capacitor of an automobile steering gear assembly 200 on a mounting seat 201 thereof. Specifically, the automobile steering gear assembly automatic assembly line 100 of the present invention includes a mounting seat detection machine 10, an end cap assembly machine 20, a terminal assembly machine 30, an inductor assembly machine 40, a capacitor assembly machine 50, a characteristic detection machine 60 and a coating machine 70 which are electrically connected to the control system and connected in sequence. The mounting seat detection machine 10 is used to detect the height of the connector on the mounting seat 201 and the height of the plug-in piece in the connector, the size of the connector inner hole and the size of the connector through hole, and to transmit the detected mounting seat 201; the end cap assembly machine 20 is used to install the end cap 202 on the detected mounting seat 201, and to transmit the mounting seat 201 with the end cap 202 assembled; the terminal assembly machine 30 is used to stack and connect a plurality of connection terminals 203 on the mounting seat 201, so that the connection terminals 203 are connected to the connectors correspondingly, and to transmit the mounting seat 201 with the connection terminals 203 assembled; the inductor assembly machine 40 first flattens and cuts the pins of the inductor 204 The capacitor assembly machine 50 is used to cut and bend the pins of the capacitor, and then assemble the capacitor on the mounting seat 201, so that the capacitor is also connected to the corresponding connecting terminal 203, and the mounting seat 201 on which the capacitor has been assembled is transported; the characteristic detection machine 60 is used to perform corresponding characteristic detection on the connecting terminal 203, the inductor 204 and the capacitor assembled in the mounting seat 201, and transport the mounting seat 201 after the detection; the coating machine 70 is used to coat the surface of the connecting terminal 203 in the mounting seat 201 after the characteristic detection, and transport the coated mounting seat 201 to the next material; the control system is used to control the coordinated actions between the machines, wherein the control system is an existing design, and its structure and control principle are well known in the art, so it will not be described in detail here.

[0034] Specifically, the mounting base 201 of the present invention has two mounting surfaces, a front surface and a back surface. Figure 1 As shown, the front side of the mounting base 201 faces upwards. Figure 2As shown, the back of the mounting base 201 faces upward. The outer side wall of the mounting base 201 is roughly circular. In the present application, the mounting base 201 has been equipped with connectors 207, 208 and 209 of different heights for connecting with other parts of the automobile. The capacitor may specifically include two first capacitors 205 and one second capacitor 206, the first capacitor 205 is a film capacitor, and the second capacitor 206 is an electrolytic capacitor. The number of connecting terminals 203 may be 4. Of course, in other embodiments, the number of connectors, connecting terminals, capacitors and inductors is determined according to specific needs. The automobile steering gear assembly automatic assembly line 100 of the present invention can complete the assembly of components such as single or multiple connecting terminals, single or multiple capacitors and inductors on the mounting base 201.

[0035] In a preferred embodiment of the present application, in the mounting seat inspection machine 10, the end cap assembly machine 20 and the coating machine 70, the mounting seat 201 is rotated with its front side facing upward, and in the terminal assembly machine 30, the inductor assembly machine 40, the capacitor assembly machine 50 and the characteristic inspection machine 60, the mounting seat 201 is rotated with its back side facing upward, thereby facilitating assembly and inspection.

[0036] See also Figure 4 and Figure 5 In order to facilitate the flow of the mounting seat 201 between various machines to complete the corresponding operations, the automobile steering gear assembly automatic assembly line 100 of the present invention also includes a first fixture 101 and a second fixture 102. The first fixture 101 and the second fixture 102 both have a contoured groove 103 corresponding to the outer contour of the mounting seat 201. A retractable side top block 104 is provided at the edge of the contoured groove 103. The side top block 104 flexibly presses the mounting seat 201 from the outside through an elastic member to prevent it from moving. Among them, a positioning protrusion 1011 is provided in the profiling groove 103 of the first fixture 101. When the mounting seat 201 is clamped between the positioning protrusion 1011 and the inner wall of the profiling groove 103 with its front side facing upward, the positioning portion on the bottom side of the mounting seat 201 is clamped with the positioning protrusion 1011, thereby limiting the rotation of the mounting seat 201; in addition, a through hole for the positioning column 21 to pass through is also provided in the profiling groove 103 of the first fixture 101. When the end cover 202 is assembled, the positioning column 21 passes through the through hole to support the end cover 202. The profiling groove 103 of the second fixture 102 is provided with a through hole 1021 corresponding to the shape of the protrusion of the mounting seat 201. The protrusion is specifically the part higher than the top surface of the mounting seat 201 after the connector and the end cover 202 are installed. If there are multiple protrusions, the number of corresponding through holes 1021 is also multiple. When the mounting seat 201 is clamped in the profiling groove 103 with its back facing upward, the protrusion on the top side of the mounting seat 201 is connected to the corresponding through hole 1021, which can also limit the rotation of the mounting seat 201. Then, the mounting seat 201 can be circulated between various machines through the first fixture 101 and the second fixture 102, and the positioning is accurate, which effectively improves the assembly accuracy.

[0037] See also Figure 6 In order to facilitate the transfer of the mounting seat 201 between various machines, the automatic assembly line 100 of the automobile steering gear assembly of the present invention also includes a first clamping jaw 105 for transferring the mounting seat 201. The first clamping jaw 105 has a clamping surface 1051 corresponding to the outer contour of the mounting seat 201. The clamping surface 1051 is in a "V" shape or an arc shape, so as to facilitate the clamping and fixing of the mounting seat 201 with a circular outer wall, and the clamping is more secure. In addition, an anti-static PU is also provided at the area 1052 on the clamping surface 1051 that contacts the outer circular wall of the mounting seat 201 to prevent the mounting seat 201 from being clamped and slipping. No matter how the external structure of the two matching clamping parts 1053 of the first clamping jaw 105 is changed, as long as the inner wall of the clamping part 1053 has a clamping surface 1051 in a "V" shape or an arc shape, the mounting seat 201 can be clamped securely and securely.

[0038] See also Figure 7 In order to facilitate the transfer of the first capacitor 205 and the second capacitor 206, the automobile steering gear assembly automatic assembly line 100 of the present invention also includes a second clamping jaw 106 for transferring the capacitor, and the second clamping jaw 106 includes two clamping parts 1061 arranged side by side, and at least one clamping part 1061 can move linearly closer to or away from the other clamping part 1061, so that the capacitor 205 can be clamped between the two clamping parts 1061, wherein the front clamping part 1061 is in an "L" shape, and has a relatively small abutment 1062 extending downward at its short side, and the rear clamping part 1061 is in an "L" shape or plate shape, and the clamping surface is relatively larger, so that the capacitor 205 can be clamped more stably, wherein the second capacitor 206 is used as an example for illustration.

[0039] See below Figures 8 to 16 The specific structure and working principle of the automobile steering gear assembly automatic assembly line 100 of the present invention are described according to the assembly process:

[0040] See also Figure 8In a preferred embodiment of the present application, the mounting seat inspection machine 10 includes a turntable 11 installed on a work platform, a first loading device 12, a height detection device 13, an inner hole detection device 14, an image detection device 15, a flipping device 16, a transparency detection device 17, a laser engraving device 18 and a first unloading device 90 arranged in sequence along the transfer direction of the turntable 11. The first loading device 12 places the mounting seat 201 on the first fixture 101 provided on the turntable 11 with its front side facing upward, and the turntable 11 rotates to transfer the mounting seat 201 placed thereon, the height detection device 13 detects the height of the connector 208 and the connector 209 on the mounting seat 201 and the height of the plug-in piece in the connector 207, the inner hole detection device 14 detects the size of the inner holes of the connectors 207, 208 and 209 after the height detection, and the image detection device 15 ... After the hole detection, the shapes of the through holes in the connector 208 and the connector 209 are detected, the flipping device 16 removes the mounting base 201 after the through hole detection from the turntable 11 and flips it 180°, and then puts the mounting base 201 with the back facing up after the flipping back on the turntable 11, the transparency detection device 17 detects the transparency of the side wall of the mounting base 201 after the flipping, the laser engraving device 18 performs laser coding on the mounting base 201 after the light transmittance detection, and the first unloading device 90 performs diversion unloading on the mounting base 201 after the coding.

[0041] Among them, in order to improve efficiency, two height detection devices 13, two inner hole detection devices 14 and two image detection devices 15 are sequentially provided on the turntable 11, wherein one height detection device 13 detects the height of the plug-in piece in the relatively higher connector 207 by means of a height gauge, and the other height detection device 13 detects the heights of both the connector 208 and the connector 209 by means of a height gauge at the same time, one inner hole detection device 14 detects the inner hole size of the higher connector 207 by means of a through gauge, and the other inner hole detection device 14 detects the inner hole size of both the connector 208 and the connector 209 by means of a through gauge at the same time, and the two image detection devices 15 detect the shapes of the through holes in the connectors 208 and the connector 209 by means of industrial cameras respectively, and the mounting seat detection machine 10 can realize the automated assembly line operation of multiple index detection, has a simple and compact structure, effectively improves the detection efficiency and has high detection accuracy.

[0042] After the inspection is completed, the mounting seat inspection machine 10 transfers the qualified mounting seat 201 to the end cap assembly machine 20. After the end cap assembly machine 20 presses the end cap 202 on the mounting seat 201, the mounting seat 201 that has passed the assembly inspection is turned 180° and transferred to the terminal assembly machine 30. The terminal assembly machine 30 first bends the coil into the required specification of the connecting terminal 203, and then separates the formed connecting terminal 203 from the coil by punching and cutting, and then absorbs and assembles the punched connecting terminal 203 into the mounting seat 201, wherein the shapes of the four connecting terminals 203 may be different. Finally, the four connecting terminals 203 are melted to the mounting seat 201 by the hot melt device 31, and the four connecting terminals 203 correspond to the conductive connections with the connector 207, the connector 208 and the connector 209.

[0043] See also Fig. 9 Specifically, the hot melt device 31 includes a hot melt head 311, a first linear drive module 312 for driving the hot melt head 311 to move linearly up and down, and a heat insulation component 313 connected between the first linear drive module 312 and the hot melt head 311. Driven by the first linear drive module 312, the hot melt head 311 can move linearly up and down to approach the connection terminal 203 until it abuts against the connection terminal 203 to complete the corresponding hot melt operation, so that the four connection terminals 203 are initially fixed in the mounting seat 201. Among them, the hot melt head 311 has a plurality of contacts 3111, which can be hot-melted at multiple points at a time, correspondingly improving efficiency and saving costs. The hot melt head 3111 is also provided with a heating rod and a temperature sensor 3112 that are thermally connected to the contact 3111. The heating rod is used to compensate for the temperature of the contact 3111 to ensure the effect of hot melting. The temperature sensor 3112 monitors the temperature at the hot melt head 3111 and provides real-time feedback on the hot melt temperature.

[0044] After hot melting, the terminal assembly machine 30 transfers the mounting seat 201 with qualified assembly of the connecting terminal 203 to the inductor assembly machine 40. The inductor assembly machine 40 first flattens the pins of the inductor 204 to facilitate assembly and then cuts the flattened pins. Thereafter, the inductor 204 is plugged into the corresponding assembly position of the mounting seat 201 and fixed by glue. The mounting seat 201 is then transferred to the welding device by the second loading device 41 of the inductor assembly machine 40. The welding device welds the solder joints of the inductor 204 by conducting current, so that the inductor 204 is conductively connected to the corresponding connecting terminal 203. In addition, the welding device also welds the solder joints of the connecting terminal 203, so that each connecting terminal 203 can be conductively connected to other components in the mounting seat 201.

[0045] See also Fig.10The second loading device 41 includes a second linear drive module 411, a rotation driver 412 connected to the output end of the second linear drive module 411, a clamping driver 413 connected to the output end of the rotation driver 412, and a first clamping jaw 105 connected to the output end of the clamping driver 413. The bottom end of the clamping driver 413 is connected to a pressure rod 414 at a position between the two clamping parts 1053 of the first clamping jaw 105 facing the inductor 204, and the pressure rod 414 can abut against the inductor 204. The second linear drive module 411 and the rotary driver 412 can drive the first clamp 105 to linearly reciprocate and rotate along the Z-axis and Y-axis directions, thereby transferring the first clamp 105 from the dispensing position of the inductor assembly machine 40 to the welding device. When the first clamp 105 moves down in the vertical direction to the clamping mounting seat 201, the pressure rod 414 moves down to press the inductor 204, thereby preventing the inductor 204 from shaking and shifting during the transfer process. A spring is connected between the pressure rod 414 and the bottom end of the clamping driver 413, thereby playing a buffering role and preventing the inductor 204 from being crushed.

[0046] See also Fig.11 After welding, the inductor assembly machine 40 transmits the qualified mounting seat 201 of the inductor 204 to the capacitor assembly machine 50. The capacitor assembly machine 50 includes a conveying device 51 and a dispensing device 52, a first assembly device 53, a second assembly device 54 and a second unloading device 55 arranged in sequence along the conveying direction of the conveying device 51. A shearing device 56, a bending device 57, a detection device 58 and a transfer device 59 are provided between the dispensing device 52 and the first assembly device 53 and between the second assembly device 54 and the second unloading device 55. The conveying device 51 is used to convey the mounting seat 201, the glue dispensing device 52 dispenses glue on the assembly positions of the two first capacitors 205 and the one second capacitor 206 on the mounting seat 201, the two shearing devices 56 respectively shear the pins of the first capacitor 205 and the pins of the second capacitor 206, the two bending devices 57 respectively bend the pins of the first capacitor 205 and the pins of the second capacitor 206 after the pins are sheared, the two detection devices 58 respectively detect the two first capacitors 205 and the one second capacitor 206 after the bending, and the two transfer devices 59 are respectively provided on the first and second capacitors 205 and 206. The corresponding side's shearing device 56, bending device 57 and detection device 58 are used to transfer the first capacitor 205 or the second capacitor 206 after the corresponding side's shearing and the first capacitor 205 or the second capacitor 206 after bending. The first assembly device 53 assembles the first capacitor 205 after detection onto the mounting seat 201 after gluing. The second assembly device 54 assembles the second capacitor 206 after detection onto the mounting seat 201 after gluing. The second unloading device 55 shunts and unloads the mounting seat 201 where the first capacitor 205 and the second capacitor 206 are already assembled.

[0047] Preferably, the transfer directions of the first capacitor 205 and the second capacitor 206 are opposite, and the shearing device 56, the bending device 57 and the detection device 58 for performing corresponding actions on the second capacitor 206 are arranged in the direction opposite to the transfer direction of the transfer device 51, so that the structure of the whole machine is more compact by optimizing the layout, the assembly efficiency is effectively improved, and the volume of the whole machine is effectively reduced. Furthermore, the two transfer devices 59 can synchronously transfer the first capacitor 205 or the second capacitor 206 after the shearing and the first capacitor 205 or the second capacitor 206 after the bending, so as to further improve the assembly efficiency.

[0048] See also Fig.12 In the preferred embodiment of the present application, the bending device 57 includes a bending platform 571, a folding knife 572 disposed on the upper side of the bending platform 571, and a bending driving mechanism 573 connected to the folding knife 572. A first slot 571a is provided at the connection between the top wall 5711 and the side wall 5712 of the bending platform 571, so that the two pins 2061 of the second capacitor 206 (see Figure 7 ) is suspended at the notch of the first slot 571a, and the bending driving mechanism 573 can drive the folding knife 572 to approach the second capacitor 206 and press and bend its two pins 2061 toward the side wall 5712 to bend. Specifically, in this embodiment, the folding knife 572 includes a left folding portion 5721 and a right folding portion 5722. Under the driving of the bending driving mechanism 573, the left folding portion 5721 and the right folding portion 5722 can make a linear movement close to or away from each other, and can be inserted between the two pins 2061 of the second capacitor 206, and bend the two pins 2061 in two opposite directions until the two pins 2061 are bent to fit with the side wall 5712, thereby forming a 90° bent foot. The left folding portion 5721 and the right folding portion 5722 are specifically hook-shaped. Of course, in other embodiments, the folding knife 572 may also be an integral body and may be in the shape of a plate, so that the pin 2061 may be bent from top to bottom or from bottom to top.

[0049] See also Fig.13After the capacitors are assembled, the capacitor assembly machine 50 transmits the qualified capacitor assembly mounting seat 201 to the characteristic detection machine 60. The characteristic detection machine 60 performs characteristic detection on the two first capacitors 205, the one second capacitor 206 and the four connection terminals 203, and detects the assembly height and assembly position of the connection terminals 203. Among them, the characteristic detection machine 60 includes a capacitor characteristic detection device 61 for detecting three capacitors. The capacitor characteristic detection device 61 includes a pressing plate 611, a plurality of probes 612 installed on the pressing plate 611, a pressing driver 613 connected to the pressing plate 611, a bending plate 614 and a bending driver 615 connected to the bending plate 614. The pressing driver 613 can drive the pressing plate 611 to move linearly up and down, so that the probe 612 abuts against the pins of the corresponding two first capacitors 205 and one second capacitor 206, thereby completing the corresponding characteristic test. After detection, the bending driver 615 can drive the bending plate 614 to make a linear movement close to or away from the mounting seat 201, thereby bending and damaging the portion of the connecting terminal 203 protruding from the mounting seat 201 in the defective product, so as to collect and discharge the defective products.

[0050] See also Figures 14 to 16 After the characteristic detection, the characteristic detection machine 60 transmits the qualified product to the coating machine 70. The coating machine 70 includes a third loading device 71, a cleaning device 72, a coating device 73 and a third unloading device 74. The third loading device 71 is arranged beside the cleaning device 72 and the coating device 73, and can take the mounting seat 201 to the cleaning device 72, and cooperate with the cleaning device 72 to clean and remove dust from the mounting seat 201. The third loading device 71 also turns the cleaned mounting seat 201 180 degrees and places it on the coating table 731 of the coating device 73. The coating device 73 includes a coating box 732 detachably connected to the bottom of the coating table 731 and a coating box 732 suspended on the coating table 731. The coating head 733 in the coating box 731 has a receiving groove with a notch facing upward, and the notch of the receiving groove is lower than the liquid level of the coating liquid in the coating box 731. The coating head 733 can move linearly up and down relative to the coating box 731 to approach or move away from the coating table 731, so that the coated part of the connecting terminal 203 in the mounting seat 201 can be immersed in the coating liquid carried by the receiving groove. The coating box 732 of the coating device 73 can move linearly towards or away from the coating table 731, thereby facilitating the cleaning of the coating box 732 and the coating head 700 and the replacement of the coating liquid. The third unloading device 74 is used for cooling, storing and transferring the mounting seat 201 after the coating process. Among them, the third unloading device 74 includes multiple manipulators 741 and a cooling storage mechanism 742 arranged next to the manipulators 741. The three manipulators 741 cooperate to complete the loading of empty boxes, the packing of the mounting seat 201 after coating, and the stacking and cooling of the boxes filled with the mounting seat 201 in the cooling storage mechanism 742.

[0051] In the coating machine 70 of the present invention, the third loading device 71 can realize the automatic placement of the mounting seat 201, and can also realize the transfer and flipping operation of the mounting seat 201. A single device realizes multiple actions, and the structure is simple and efficient, and the structure is optimized. The mounting seat 201 is first cleaned at the cleaning device 72, and then coated in the coating device 73, so that the coating effect is better, and when coating, not the entire connection terminal 203 is in contact with the coating liquid, but the coating head 733 moves relative to the connection terminal 203, so that the coating part of the connection terminal 203 is positioned and coated in the coating head 733, and the coating effect is good; and the up and down movement of the coating head 733 can also stir the coating liquid, so as to promote the flow of the coating liquid in the coating box 732, and effectively improve the use effect of the coating liquid. In addition, the coating box 732 is detachably connected to the coating table 731. When it moves linearly away from the coating table 731, it can conveniently complete the cleaning operation of the coating box 732 and facilitate the cleaning, disassembly and replacement of the coating head 733, thereby achieving adaptive operation of the coating parts of different models and different parts, effectively improving the adaptability of the entire machine.

[0052] See also Fig.16 The third loading device 71 includes a first clamp 105, which can move linearly along the Z-axis direction relative to the coating table 731 to grab the mounting seat 201. The first clamp 105 can also move linearly along the Y-axis direction relative to the coating table 731 to transfer the grabbed mounting seat 201 between the cleaning device 72 and the coating table 731. During the transfer process, the first clamp 105 can also rotate 180° relative to the coating table 731, so that the coating part is in a direction convenient for coating processing.

[0053] Specifically, the third loading device 71 also includes a Y-axis linear module 711, a mounting frame 712, a rotation driver 713, a first swing arm 714, a second swing arm 715, a connecting plate 716, a rotation driver 717 and a clamping driver 718. The mounting frame 712 is connected to the slider of the Y-axis linear module 711, the rotation driver 713 is fixed to the top of the mounting frame 712, one end of the first swing arm 714 is rotatably connected to the output end of the rotation driver 713, the other end of the first swing arm 714 is pivotally connected to one end of the second swing arm 715, the other end of the second swing arm 715 is rotatably connected to the connecting plate 716, the side end of the connecting plate 716 is slidably connected to the relative lower end of the mounting frame 712 along the Z-axis direction, the rotation driver 717 is installed on the connecting plate 716, the clamping driver 718 is connected to the output end of the rotation driver 717, and the first clamp 105 is connected to the output end of the clamping driver 718.

[0054] More specifically, the mounting frame 712 is generally L-shaped, and is slidably connected to the Y-axis linear module 711 with its short side 7121 along the Y axis at the top and its long side 7122 along the Z axis at the bottom. The rotary driver 713 is provided on the short side 7121 of the mounting frame 712, and the connecting plate 716 is slidably connected to the long side 7122 of the mounting frame 712. Both the rotary driver 713 and the rotary driver 717 are servo motors. Preferably, an elastic member 719 is connected between the mounting frame 712 and the lower end of the second swing arm 715, and the elastic member 719 is specifically a spring.

[0055] When the rotary driver 713 rotates, the first swing arm 714 can be driven to rotate, thereby driving the second swing arm 715 to rotate, so that the first swing arm 714 and the second swing arm 715 are relatively opened or folded, and the connecting plate 716 can be driven to slide on the long side 7122 of the mounting frame 712, thereby driving the first clamping jaw 105 to move up and down along the Z-axis direction to get closer to or away from the mounting seat 201, and the clamping driver 718 then drives the first clamping jaw 105 to clamp or release the mounting seat 201. When the first swing arm 714 and the second swing arm 715 are relatively open and approximately in a straight line in the Z-axis direction, the first clamping jaw 105 moves down to pick up the material, and the elastic member 719 is stretched at this time; when the first swing arm 714 and the second swing arm 715 are relatively folded, the elastic member 719 is reset, and the second swing arm 715 is also driven to reset to an acute angle between the first swing arm 714 and the Y-axis direction, then the first clamping jaw 105 moves up with the mounting seat 201, so that the mounting seat 201 can be clamped from a relatively low transfer position to a relatively high position, so that the Y-axis linear module 711 can subsequently drive the first clamping jaw 105 to move horizontally to the cleaning device 72 and the coating device 30. After cleaning and dust removal at the cleaning device 72, the rotary driver 717 can drive the clamping driver 718 to drive the first clamping jaw 105 to flip 180°, so that the coating portion of the connecting terminal 203 in the mounting seat 201 faces downward, so that it can be placed on the coating table 731 for coating operation. It takes about two hours to cool down after coating, and the specific time depends on the actual situation. After that, at the output end of the cooling storage mechanism 742 of the third unloading device 74, the automobile steering gear assembly 200 assembled in this production line can be manually taken away, thereby completing all operations of this production line.

[0056] Compared with the prior art, the automobile steering gear assembly automatic assembly line 100 of the present invention first automatically detects the height of the connector on the mounting seat 201 and the height of the plug-in piece therein, the size of the inner hole of the connector and the size of the through hole by the mounting seat detection machine 10 before assembling the components such as the connecting terminal 203 on the mounting seat 201. The detection accuracy is high and efficient, which effectively guarantees the accuracy of subsequent assembly. In addition, the end cap assembly machine 20, the terminal assembly machine 30, the inductor assembly machine 40 and the capacitor assembly machine 50 successively complete the assembly of the end cap 202, the connecting terminal 203, the inductor 204 and the first capacitor. 205 is automatically assembled on the mounting base 201, and when the inductor 204 and the first capacitor 205 are assembled on the mounting base 201, they are automatically flattened, cut, sheared and bent. The machines are connected in sequence, eliminating the manual transfer work between different processes, and the assembly accuracy is high and the degree of automation is high. In addition, the connecting terminal 203, the inductor 204 and the first capacitor 205 assembled in the mounting base 201 are subjected to corresponding characteristic detection by the characteristic detection machine 60, and the surface of the connecting terminal 203 in the mounting base 201 is coated by the coating machine 70 to further ensure the quality of assembly.

[0057] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. An automatic assembly line for automobile steering gear components, used to assemble the end caps, connecting terminals, inductors and capacitors of automobile steering gear components on their mounting bases, characterized in that: The automobile steering gear assembly automatic assembly line includes the following parts that are connected in sequence: The mounting seat inspection machine is used to inspect the height of the connector on the mounting seat, the height of the plug-in piece in the connector, the size of the inner hole of the connector and the size of the through hole, and to transport the mounting seat after inspection; An end cap assembly machine is used to install the end cap on the mounting seat after inspection, and to transfer the mounting seat on which the end cap has been assembled; A terminal assembly machine, used to stack and assemble a plurality of connection terminals on the mounting seat so that the connection terminals are connected to the connectors correspondingly, and to transport the mounting seat on which the connection terminals have been assembled; An inductor assembly machine is used to flatten and cut the pins of the inductor, then assemble the inductor on the mounting seat so that the inductor is connected to the connecting terminal, and then transport the mounting seat on which the inductor has been assembled; A capacitor assembly machine, used to cut and bend the pins of the capacitor, then assemble the capacitor on the mounting seat so that the capacitor is connected to the connecting terminal, and transport the assembled mounting seat; A characteristic testing machine, used to perform corresponding characteristic testing on the connection terminals, inductors and capacitors assembled in the mounting seat, and to transport the mounting seat after the testing; A coating machine is used to coat the surface of the connection terminal in the mounting seat after the characteristic test, and to convey the coated mounting seat to the next material; as well as A control system, electrically connected to the mounting seat inspection machine, the end cap assembly machine, the terminal assembly machine, the inductor assembly machine, the capacitor assembly machine, the characteristic inspection machine and the coating machine, for controlling coordinated actions among the machines; The automobile steering gear assembly automatic assembly line also includes a first jig and a second jig, both of which have a contoured groove corresponding to the outer contour of the mounting seat, and a retractable side top block is provided at the edge of the contoured groove. A positioning protrusion is provided in the contoured groove of the first jig, and the mounting seat is clamped between the positioning protrusion and the inner wall of the contoured groove with its front side facing upward, and the positioning portion on the bottom side of the mounting seat is clamped with the positioning protrusion. A through hole corresponding to the shape of the protrusion of the mounting seat is provided in the contoured groove of the second jig, and the mounting seat is clamped in the contoured groove with its back side facing upward, and the protrusion on the top side of the mounting seat is penetrated into the corresponding through hole.

2. The automatic assembly line for automobile steering gear components according to claim 1 is characterized in that: In the mounting seat inspection machine, the end cap assembly machine and the coating machine, the mounting seat is rotated with its front side facing upward, and in the terminal assembly machine, the inductor assembly machine, the capacitor assembly machine and the characteristic inspection machine, the mounting seat is rotated with its back side facing upward.

3. The automatic assembly line for automobile steering gear components according to claim 1 is characterized in that: The automobile steering gear assembly automatic assembly line includes a first clamp for transferring the mounting seat, the first clamp having a clamping surface corresponding to the outer contour of the mounting seat, the clamping surface being in a "V" shape or an arc shape, and an anti-static PU is provided on the clamping surface in an area in contact with the mounting seat.

4. The automatic assembly line for automobile steering gear components according to claim 1, characterized in that: The mounting seat detection machine includes a turntable and a first loading device, a height detection device, an inner hole detection device, an image detection device, a flip device, a transparency detection device, a laser engraving device and a first unloading device arranged in sequence along the rotation direction of the turntable, the first loading device is used to place the mounting seat on the turntable with its front side facing upward, the turntable is used to transfer the mounting seat placed thereon, the height detection device is used to detect the height of the connector on the mounting seat and the height of the plug-in sheet in the connector, and the inner hole detection device is used to detect the height of the connector after the height detection. The size of the inner hole of the connector is detected, the image detection device is used to detect the shape of the through hole of the connector after the inner hole detection, the flipping device is used to remove the mounting seat from the turntable after the through hole detection and flip it 180°, and then put the mounting seat with the back facing up after flipping back on the turntable, the transparency detection device is used to detect the transparency of the mounting seat after flipping, the laser engraving device is used to laser code the mounting seat after the light transmission detection, and the first unloading device is used to divert and unload the mounting seat after the coding is completed.

5. The automatic assembly line for automobile steering gear components according to claim 1, characterized in that: The terminal assembly machine includes a hot melt device, which includes a hot melt head, a first linear drive module that drives the hot melt head to move linearly up and down, and a heat insulation component connected between the first linear drive module and the hot melt head. The hot melt head has a plurality of contacts and a heating rod connected to the contacts. A temperature sensor is also provided at the hot melt head for monitoring the temperature of the hot melt head.

6. The automatic assembly line for automobile steering gear components according to claim 3, characterized in that: The inductor assembly machine includes a second loading device, which includes a second linear drive module, a rotating driver connected to the output end of the second linear drive module, a clamping driver connected to the output end of the rotating driver, and the first clamping jaw connected to the output end of the clamping driver. A pressure rod is connected to the bottom end of the clamping driver at a position between the two clamping parts of the first clamping jaw facing the inductor, and the pressure rod can abut against the inductor.

7. The automatic assembly line for automobile steering gear components according to claim 1, characterized in that: The capacitor assembly machine includes a conveying device and a glue dispensing device, a first assembly device, a second assembly device and a second blanking device arranged in sequence along the conveying direction of the conveying device. A shearing device, a bending device, a detection device and a transfer device are provided between the glue dispensing device and the first assembly device and between the second assembly device and the second blanking device. The conveying device is used to convey the mounting seat, the glue dispensing device is used to dispense glue on the assembly position of the mounting seat, the two shearing devices are used to shear the pins of the first capacitor and the pins of the second capacitor respectively, and the two bending devices are used to be respectively used to be ... Bending, the two detection devices are respectively used to detect the first capacitor and the second capacitor after bending, the two transfer devices are respectively arranged between the shearing device, the bending device and the detection device on the corresponding side, and are used for transferring the first capacitor or the second capacitor after the shearing on the corresponding side and the first capacitor or the second capacitor after bending, the first assembling device is used to assemble the first capacitor after detection to the mounting seat after gluing, the second assembling device is used to assemble the second capacitor after detection to the mounting seat after gluing, and the second unloading device is used for shunting and unloading the mounting seat where the first capacitor and the second capacitor have been assembled.

8. The automatic assembly line for automobile steering gear components according to claim 1, characterized in that: The characteristic detection machine includes a capacitance characteristic detection device, which includes a pressing plate, a plurality of probes installed on the pressing plate, a crimping driver connected to the pressing plate, a bending plate and a bending driver connected to the bending plate. The crimping driver can drive the pressing plate to move linearly up and down so that the probes can abut against the pins of the capacitor, and the bending driver can drive the bending plate to move linearly towards or away from the mounting seat.

9. The automatic assembly line for automobile steering gear components according to claim 1, characterized in that: The coating machine includes a third loading device, a cleaning device, a coating device and a third unloading device. The third loading device is arranged beside the cleaning device and the coating device, and is used to take the mounting seat to the cleaning device, and cooperate with the cleaning device to clean and remove dust from the mounting seat. The third loading device is also used to flip the cleaned mounting seat 180° and place it on the coating table of the coating device. The coating device includes a coating box detachably connected to the bottom of the coating table and a coating box suspended from the coating box. The coating head has a receiving groove with a notch facing upward, and the notch of the receiving groove is lower than the liquid level of the coating liquid in the coating box. The coating head can move linearly along the Z-axis direction relative to the coating box to approach or move away from the coating table, so that the coated part of the connecting terminal in the mounting seat can be immersed in the coating liquid carried by the receiving groove. The coating box of the coating device can move linearly towards or away from the coating table, and the third unloading device is used for cooling, storing and transferring the mounting seat after coating.

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