An automatic assembly equipment for automobile door lock PIN pins

Abstract

The present invention discloses an automatic assembly device for automobile door lock PIN pins, comprising a door lock housing line, a first PIN pin assembly device, and a second PIN pin assembly device. The door lock housing line is provided with a first PIN pin assembly station and a second PIN pin assembly station arranged in sequence along a transmission direction. The first PIN pin assembly device and the second PIN pin assembly device each comprise a PIN pin feeding assembly, a PIN pin feeding robot, a PIN pin positioning assembly, and a PIN pin transfer assembly assembly. The PIN pin transfer assembly assembly is used to grasp, transfer, and assemble the first or second PIN pin located in the PIN pin positioning assembly into the first or second PIN pin hole in the door lock housing located in the PIN pin assembly station. The PIN pin transfer assembly assembly comprises a two-dimensional PIN pin transfer plate and an assembly clamp. The assembly clamp comprises a left assembly clamp, a right assembly clamp, and an assembly push plate. The present invention can accurately and automatically insert PIN pins into the door lock housing assembly, ensuring that each PIN pin is correctly and consistently inserted into the predetermined position, with a high pin insertion qualification rate.

Description

Technical Field

[0001] The invention relates to the field of automatic assembly of automobile door locks, in particular to automatic assembly equipment for PIN pins of automobile door locks. Background Art

[0002] Traditionally, automotive door lock pins require manual insertion of each pin into the corresponding position on the door lock housing. This method is inefficient, time-consuming, and labor-intensive. Furthermore, manual operation is susceptible to subjective factors, making it difficult to guarantee product quality and accuracy.

[0003] Chinese invention patent application publication number CN107363539A discloses an "automatic PIN insertion device," comprising a first insert PIN insertion mechanism, comprising a turntable supporting a first insert, a first insert transporting unit that transports the first insert to be inserted from the turntable or transports the first insert after insertion to the turntable, a translation unit that receives the first insert transported by the first insert transporting unit, a first PIN feed unit, and a cam pin insertion machine that inserts the PIN from the first PIN feed unit into the first insert to be inserted; and a second insert PIN insertion mechanism, comprising a platform supporting a second insert, a second PIN feed unit that transports the second PIN to the platform, and a pin insertion unit that inserts the second PIN from the second PIN feed unit into the second insert. This mechanism can efficiently and automatically insert PINs into the inserts of a car door lock, thereby saving labor costs.

[0004] The above patent application uses a cam pin insertion machine to insert the first PIN pin or the second PIN pin. However, since the first PIN pin or the second PIN pin is flat and slender, it is easy to deform during insertion, and the positioning accuracy is low, resulting in a low pin insertion qualification rate. In addition, only one PIN pin can be inserted at a time, and the automation efficiency is low. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art and to provide an automatic assembly device for automobile door lock PIN pins. The automatic assembly device for automobile door lock PIN pins can accurately and automatically insert the PIN pins into the door lock housing assembly, and ensure that each PIN pin can be correctly and consistently inserted into the predetermined position, with a high pin insertion qualification rate.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An automatic PIN pin assembly device for an automobile door lock comprises a door lock housing line, a first PIN pin assembly device and a second PIN pin assembly device.

[0008] The door lock housing has a first PIN pin hole and a second PIN pin hole, which can be used to assemble a first PIN pin and a second PIN pin respectively; the first PIN pin and the second PIN pin both include a pin, an L-shaped transition section and a power interface arranged in sequence; wherein the power interfaces in the first PIN pin and the second PIN pin are positioned oppositely.

[0009] The door lock housing line is arranged along the Y direction for automatic transmission of the door lock housing, with the first PIN pin hole and the second PIN pin hole of the door lock housing facing upward and both arranged along the X direction; the door lock housing line is sequentially arranged with two PIN pin assembly stations along the transmission direction, namely: the first PIN pin assembly station and the second PIN pin assembly station.

[0010] A lifting assembly is provided directly below each PIN needle assembly station for lifting the door lock housing located on the corresponding PIN needle assembly station upwards.

[0011] A pressing assembly is provided directly above each PIN pin assembly station for pressing the top surface of the door lock housing which is located on the corresponding PIN pin assembly station and has been lifted up.

[0012] The first PIN needle assembly device and the second PIN needle assembly device are both arranged on the same side of the door lock housing linear body along the X direction, and the first PIN needle assembly device faces the first PIN needle assembly station, and the second PIN needle assembly device faces the second PIN needle assembly station.

[0013] The first PIN needle assembly device and the second PIN needle assembly device both include a PIN needle feeding component, a PIN needle feeding robot, a PIN needle positioning component and a PIN needle transfer assembly component.

[0014] The PIN needle feeding assembly is used to provide a first PIN needle or a second PIN needle with a set posture.

[0015] The PIN pin feeding robot is used to grab the first PIN pin or the second PIN pin in a set posture in the PIN pin feeding assembly, and place the grabbed workpiece in the PIN pin positioning assembly.

[0016] The PIN pin positioning assembly is used to locate the position of the first PIN pin or the second PIN pin, and exposes the tail of the pin adjacent to the L-shaped transition section to form a grabbing portion.

[0017] The PIN needle transfer assembly component is used to grab, transfer and assemble the first PIN needle or the second PIN needle located in the PIN needle positioning component to the first PIN needle hole or the second PIN needle hole of the door lock housing located in the PIN needle assembly station.

[0018] The PIN needle transfer assembly component comprises a PIN needle two-dimensional transfer plate and an assembly clamp.

[0019] The PIN needle two-dimensional transfer plate can realize horizontal movement in X direction and height lifting in Z direction.

[0020] The assembly clamping jaws are arranged on the PIN needle two-dimensional transfer plate, and comprise an assembly left clamping jaw, an assembly right clamping jaw and an assembly push plate.

[0021] The left assembly jaw and the right assembly jaw can both slide left and right to open and close, and a pin limiting slot is provided in the middle of the clamping mating surface of the left assembly jaw.

[0022] The assembly push plate can be inserted into the L-shaped groove of the L-shaped transition section and fit into the vertical section of the L-shaped transition section; the assembly push plate can move along the X direction under the drive of the corresponding thrust component, generating a thrust on the vertical section of the L-shaped transition section, so that the pin is inserted into the first PIN pinhole or the second PIN pinhole.

[0023] The PIN needle feeding assembly includes a PIN needle vibrating material tray and a PIN needle posture visual detection device; wherein, the PIN needle posture visual detection device can detect the posture of the first PIN needle or the second PIN needle located in the PIN needle vibrating material tray, and transmit the detected posture to the PIN needle feeding robot.

[0024] The PIN needle vibration feed tray is a plastic transparent flat plate with a lighting lamp arranged at the bottom thereof; a PIN needle storage box is arranged on the outside of the PIN needle vibration feed tray.

[0025] The first PIN needle assembly device and the second PIN needle assembly device share the same PIN needle feeding robot; the PIN needle feeding robot includes a left feeding jaw and a right feeding jaw that can be opened and closed; wherein, a pin clamping groove with an L-shaped cross-section is provided at the bottom of the clamping mating surface of the left feeding jaw.

[0026] Chamfers are provided on both sides of the bottom of the pin clamping groove and on both sides of the clamping mating surface of the right feeding jaw.

[0027] The PIN needle positioning assembly includes a PIN needle feeding slide rail, a PIN needle transfer tray and a PIN needle positioning tooling.

[0028] The PIN needle feeding slide rail is arranged along the X direction and has a positioning station and a PIN needle loading station; among them, the positioning station is adjacent to the PIN needle feeding assembly, and the PIN needle loading station is adjacent to the door lock housing line.

[0029] The PIN needle transfer carrier is slidably connected to the PIN needle feeding slide rail and can slide back and forth between the positioning station and the PIN needle loading station.

[0030] The PIN needle positioning tooling is set on the top of the PIN needle transfer plate, and the PIN needle positioning tooling is provided with a pin positioning groove, an L-shaped transition section limit groove and a grabbing avoidance groove; among them, the pin positioning groove is used for pin positioning, the L-shaped transition section limit groove is used for positioning the L-shaped transition section, and the grabbing avoidance groove is used to avoid the grabbing part of the first PIN needle or the second PIN needle.

[0031] The PIN needle positioning assembly also includes a transfer plate side limit device and a tooling incoming material detection device arranged at the positioning station.

[0032] The side limit device of the transfer tray can limit the position of the adjacent side of the PIN needle transfer tray located at the positioning station.

[0033] The tooling incoming material detection device can detect whether there are PIN pins in the PIN pin positioning tooling.

[0034] Several door lock shell transmission plates are arranged on the door lock shell line along the transmission direction. Each door lock shell transmission plate is provided with a lifting plate. Two door lock shell positioning tooling is provided along the Y direction on the lifting plate. A door lock shell is positioned and installed on each door lock positioning shell; the first PIN pins or the second PIN pins of the two door lock shells on each door lock shell transmission plate are arranged facing each other.

[0035] Two PIN pin positioning tools are arranged on the PIN pin transfer plate, and the center line of the two PIN pin positioning tools is parallel to the line of the door lock housing; the spacing between the two pin positioning grooves in the two PIN pin positioning tools is equal to the spacing between the two first PIN pins or the two second PIN pins on each door lock housing transmission plate.

[0036] Two assembly clamps are provided on the PIN pin two-dimensional transfer plate; the distance between the two assembly clamps is equal to the distance between the two first PIN pins or the two second PIN pins on each door lock housing transmission plate.

[0037] The first PIN pin is a left PIN pin or a right PIN pin; the second PIN pin is a right PIN pin or a left PIN pin.

[0038] The present invention has the following beneficial effects:

[0039] 1. The door lock housing line, the first PIN needle assembly device and the second PIN needle assembly device of the present invention can accurately and automatically insert the PIN needle into the door lock housing assembly, and ensure that each PIN needle can be correctly and consistently inserted into the predetermined position, with a high pin insertion qualification rate.

[0040] 2. The arrangement of the PIN needle positioning assembly of the present invention enables the PIN needle to be accurately positioned and exposes the pin gripping portion for easy and accurate gripping.

[0041] 3. The arrangement of the PIN needle transfer assembly component in the present invention can keep the PIN needle stable and not deformed during the grabbing, transfer and assembly processes, thereby ensuring the assembly accuracy and success rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 The present invention shows a structural schematic diagram of an automatic assembly device for a car door lock PIN pin.

[0043] Figure 2 A schematic diagram of the structure of the door lock housing positioning tooling on a single lifting plate in the present invention is shown.

[0044] Figure 3 Shown is a structural schematic diagram of the PIN needle feeding assembly in the present invention.

[0045] Figure 4 A schematic structural diagram of the feeding gripper in the PIN needle feeding robot of the present invention is shown.

[0046] Figure 5 Shown is a structural schematic diagram of the PIN needle positioning assembly in the present invention.

[0047] Figure 6 Shows a partial enlarged schematic diagram of a single PIN needle positioning tool in the PIN needle positioning assembly of the present invention Figure 1 .

[0048] Figure 7 Shows a partial enlarged schematic diagram of a single PIN needle positioning tool in the PIN needle positioning assembly of the present invention Figure 2 .

[0049] Figure 8 A partially enlarged schematic diagram of two PIN needle positioning fixtures in the PIN needle positioning assembly of the present invention is shown.

[0050] Figure 9 Shown is a structural schematic diagram of the PIN needle transfer assembly component in the present invention.

[0051] Figure 10 A schematic diagram showing the positions of two assembly clamps in the PIN needle transfer assembly component of the present invention is shown.

[0052] Figure 11 A partially enlarged schematic diagram of a single assembly clamp in the PIN needle transfer assembly component of the present invention is shown.

[0053] Figure 12 A schematic diagram showing the PIN needle transfer assembly component of the present invention assembling the PIN needle to the door lock housing is shown.

[0054] Figure 13 Shows the 3D assembly diagram of the door lock housing and PIN needle.

[0055] Figure 14 A partial cross-sectional view of the three-dimensional assembly of the door lock housing and the first PIN needle is shown.

[0056] Figure 15 A schematic diagram of the structure of the first PIN needle or the second PIN needle is shown.

[0057] Among them are:

[0058] 10. Door lock housing; 11. First PIN hole; 12. Second PIN hole; 13. Barb;

[0059] 20. PIN pin; 21. First PIN pin; 22. Second PIN pin; 23. Insert pin; 231. Barb groove; 232. Grasping portion; 24. L-shaped transition section; 241. Vertical section; 242. Horizontal section; 25. Power supply interface;

[0060] 30. PIN needle feeding assembly; 31. First PIN needle assembly station; 32. Second PIN needle assembly station; 33. Door lock housing transmission plate; 34. Lifting plate; 35. Door lock housing positioning tool; 36. Lifting assembly; 37. Press-fit assembly;

[0061] 40. First PIN needle assembly device;

[0062] 50. Second PIN needle assembly device;

[0063] 60. PIN needle feeding assembly; 61. PIN needle storage box; 62. PIN needle vibration tray; 63. Vibration device; 64. Lighting lamp;

[0064] 70. PIN feeding robot; 71. Left feeding clamp; 72. Right feeding clamp; 73. Pin holding slot; 74. Chamfering;

[0065] 80.PIN needle positioning assembly;

[0066] 81. PIN needle feeding slide rail; 811. Positioning station; 812. PIN needle loading station;

[0067] 82. PIN needle transfer tray; 821. Side limit device; 822. Tooling incoming material detection device;

[0068] 83. PIN positioning tooling; 831. Pin positioning slot; 832. L-shaped transition section limit slot; 833. Grasping avoidance slot;

[0069] 90. PIN needle transfer assembly components;

[0070] 91. PIN needle transfer guide rail; 92. PIN needle two-dimensional transfer plate; 93. Horizontal drive device; 94. Height lifting device;

[0071] 95. Assemble the clamping jaw; 951. Assemble the left clamping jaw; 952. Assemble the right clamping jaw; 953. Assemble the push plate; 954. Pin limit slot. DETAILED DESCRIPTION

[0072] The present invention will be further described in detail below with reference to the accompanying drawings and specific preferred embodiments.

[0073] In the description of the present invention, it should be understood that the terms "left side," "right side," "upper," "lower," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Terms such as "first" and "second" do not indicate the importance of components and therefore should not be construed as limitations on the present invention. The specific dimensions used in this embodiment are intended only to illustrate the technical solution and do not limit the scope of protection of the present invention.

[0074] like Figure 13 and Figure 14 As shown, the door lock housing has a first PIN pin hole 11 and a second PIN pin hole 12, which can be used to respectively assemble a first PIN pin 21 and a second PIN pin 22. Wherein, the first PIN pin hole 11 and the second PIN pin hole 12 are both provided with elastically retractable barbs 13.

[0075] like Figure 15 As shown, the first PIN needle and the second PIN needle each include a pin 23 , an L-shaped transition section 24 and a power supply interface 25 arranged in sequence.

[0076] The above-mentioned pin is provided with a barb groove 231 that matches the barb. The tail of the pin located behind the barb groove (that is, the pin adjacent to the L-shaped transition section) is the grasping portion 232 in the invention, which is used for subsequent grasping by the clamping claw.

[0077] The L-shaped transition section includes an integrally arranged vertical section 241 and a horizontal section 242 ; wherein the top of the vertical section is connected to the tail of the pin, and the tail of the horizontal section is connected to the power interface.

[0078] The power connections on the first and second PIN pins are located opposite each other. The first PIN pin is the left or right PIN pin, while the second PIN pin is the right or left PIN pin. In this embodiment, the first PIN pin is the left PIN pin, meaning the power connection is located on the left side of the horizontal segment's tail; the second PIN pin is the right PIN pin, meaning the power connection is located on the right side of the horizontal segment's tail.

[0079] like Figure 1 As shown, an automatic assembly device for a car door lock PIN pin includes a door lock housing line body 30, a first PIN pin assembly device 40 and a second PIN pin assembly device 50.

[0080] The door lock housing line is provided with a plurality of door lock housing transmission plates 33 along the transmission direction Y, which are used for automatic transmission of the door lock housing, and the first PIN pinhole and the second PIN pinhole of the door lock housing are upward and arranged along the X direction.

[0081] In the present invention, two PIN needle assembly stations are sequentially arranged on the door lock housing line along the transmission direction, namely: a first PIN needle assembly station 31 and a second PIN needle assembly station 32.

[0082] Further, if Figure 2 As shown, each door lock shell transmission plate is stacked with a lifting plate 34, and two door lock shell positioning tooling 35 along the Y direction are provided on the lifting plate. A door lock shell is positioned and installed on each door lock positioning shell; the first PIN pins or the second PIN pins of the two door lock shells on each door lock shell transmission plate are arranged facing each other.

[0083] A lifting assembly 36 is provided directly below each PIN needle assembly station, and the door lock housing located at the corresponding PIN needle assembly station is lifted upward by lifting the lifting plate.

[0084] A pressing assembly 37 is provided directly above each PIN assembly station to press the top surface of the door lock housing after it is lifted up and located at the corresponding PIN assembly station. When pressing, it is necessary to keep a slight distance from the first PIN hole and the second PIN hole to avoid assembly interference.

[0085] The above-mentioned lifting assembly and pressing assembly can both be raised and lowered in height, and are relatively mature existing technologies, so they will not be described in detail here.

[0086] The first PIN needle assembly device and the second PIN needle assembly device are both arranged on the same side of the door lock housing linear body along the X direction, and the first PIN needle assembly device faces the first PIN needle assembly station, and the second PIN needle assembly device faces the second PIN needle assembly station.

[0087] The first PIN needle assembly device and the second PIN needle assembly device both include a PIN needle feeding component 60 , a PIN needle feeding robot 70 , a PIN needle positioning component 80 and a PIN needle transfer assembly component 90 .

[0088] The PIN needle feeding assembly is used to provide a first PIN needle or a second PIN needle in a set posture. The set posture is that the gripping portion of the PIN needle faces upward.

[0089] like Figure 3 As shown, the PIN feeding assembly includes a PIN vibrating tray 62 and a PIN posture visual detection device. The PIN posture visual detection device can detect the posture of the first or second PIN in the PIN vibrating tray and transmit the detected posture to the PIN feeding robot. The PIN posture visual detection device can be fixed directly above the PIN vibrating tray or directly on the PIN feeding robot.

[0090] Furthermore, the PIN needle vibration tray is preferably a plastic transparent flat plate that is driven to vibrate by a vibration device 63, and a lighting lamp 64 is provided at the bottom of the plastic transparent plate to facilitate visual inspection.

[0091] Furthermore, a PIN needle storage box 61 is provided outside the PIN needle vibration tray for storing and providing PIN needles. The PIN needle storage box is preferably driven to vibrate by a vibration device 63 to feed the PIN needle vibration tray.

[0092] The PIN pin feeding robot is used to grab the first PIN pin or the second PIN pin in a set posture in the PIN pin feeding assembly, and place the grabbed workpiece in the PIN pin positioning assembly.

[0093] In the present invention, the first PIN needle assembly device and the second PIN needle assembly device preferably share the same PIN needle feeding robot; Figure 4 As shown, the PIN needle feeding robot includes a feeding jaw, which includes a left feeding jaw 71 and a right feeding jaw 72 that can be opened and closed; wherein, a pin clamping groove 73 with an L-shaped cross-section is provided at the bottom of the clamping mating surface of the left feeding jaw.

[0094] Furthermore, chamfers 74 are provided on both sides of the bottom of the pin clamping groove and on both sides of the clamping surface of the right feeding jaw. Among them, the arc-like chamfer at the top of the pin clamping groove is used to prevent the pin from getting stuck, and the other chamfers facilitate the insertion of the pin.

[0095] The PIN pin positioning assembly is used to locate the position of the first PIN pin or the second PIN pin, and exposes the tail of the pin adjacent to the L-shaped transition section to form a grabbing portion.

[0096] like Figure 5 As shown, the PIN needle positioning assembly includes a PIN needle feeding slide 81, a PIN needle transfer plate 82 and a PIN needle positioning tool 83.

[0097] The PIN needle feeding slide rail is arranged along the X direction, and has a positioning station 811 and a PIN needle loading station 812; wherein, the positioning station is adjacent to the PIN needle feeding assembly, and the PIN needle loading station is adjacent to the door lock housing line.

[0098] The PIN needle transfer carrier is slidably connected to the PIN needle feeding slide rail and can slide back and forth between the positioning station and the PIN needle loading station.

[0099] Furthermore, the positioning station is preferably equipped with a transfer tray side limiter 821 and a tooling material detection device 822. The transfer tray side limiter can limit the position of the adjacent side of the PIN transfer tray located at the positioning station. The tooling material detection device can detect the presence of PIN pins in the PIN positioning tool. The tooling material detection device is preferably a photoelectric sensor, etc.

[0100] The PIN needle positioning tool is set on the top of the PIN needle transfer tray, such as Figure 6 and Figure 7 As shown, the PIN pin positioning tooling is provided with a pin positioning groove 831, an L-shaped transition section limiting groove 832 and a grabbing avoidance groove 833; wherein, the pin positioning groove is used for pin positioning, the L-shaped transition section limiting groove is used for positioning the L-shaped transition section, and the grabbing avoidance groove is used to avoid the grabbing part of the first PIN pin or the second PIN pin.

[0101] Furthermore, two PIN pin positioning tools are preferably arranged on the PIN pin transfer plate, and the center line of the two PIN pin positioning tools is parallel to the line of the door lock shell; the spacing between the two pin positioning grooves in the two PIN pin positioning tools is equal to the spacing between the two first PIN pins or the two second PIN pins on each door lock shell transmission plate.

[0102] The PIN needle transfer assembly component is used to grab, transfer and assemble the first PIN needle or the second PIN needle located in the PIN needle positioning component to the first PIN needle hole or the second PIN needle hole of the door lock housing located in the PIN needle assembly station.

[0103] like Figure 1 and Figure 9 As shown, the PIN needle transfer assembly assembly includes a PIN needle transfer guide rail 91, a PIN needle two-dimensional transfer plate 92, a horizontal drive device 93, a height lifting device 94 and an assembly clamp 95.

[0104] The two PIN needle transfer guide rails 91 of the first PIN needle assembly device 40 and the second PIN needle assembly device 50 are both arranged in parallel on the PIN needle feeding robot, that is, located between the two PIN needle feeding slide rails, thereby achieving high integration and space saving of this automatic equipment.

[0105] On the one hand, the PIN needle two-dimensional transfer plate can slide along the PIN needle transfer guide rail to achieve horizontal movement in the X direction under the action of the horizontal driving device 93; on the other hand, it can also achieve height lifting in the Z direction under the drive of the height lifting device.

[0106] like Figure 10 and Figure 11 As shown, the assembly jaws are arranged on the PIN needle two-dimensional transfer plate, including an assembly left jaw 951, an assembly right jaw 952 and an assembly push plate 953.

[0107] Both the left assembly jaw and the right assembly jaw can slide left and right to open and close under the drive of the corresponding driving device, and a pin limiting slot 954 is provided in the middle of the clamping mating surface of the left assembly jaw.

[0108] The assembly push plate can be inserted into the L-shaped groove of the L-shaped transition section and fit into the vertical section of the L-shaped transition section; the assembly push plate can move along the X direction under the drive of the corresponding thrust component, generating a thrust on the vertical section of the L-shaped transition section, so that the pin is inserted into the first PIN pinhole or the second PIN pinhole.

[0109] Furthermore, two assembly clamps are provided on the PIN pin two-dimensional transfer plate; the spacing between the two assembly clamps is equal to the spacing between the two first PIN pins or the two second PIN pins on each door lock housing transmission plate, so that two first PIN pins or two second PIN pins can be grabbed at one time, and the two first PIN pins or two second PIN pins can be assembled into the two door lock housings on the same lifting plate at the same time, thereby reducing the beat and improving work efficiency.

[0110] A method for automatically assembling a PIN pin for a car door lock comprises the following steps.

[0111] Step 1, automatic feeding of PIN needles: The first PIN needle assembly device 40 and the second PIN needle assembly device 50 both realize automatic feeding of PIN needles through the PIN needle feeding component.

[0112] The method for automatically feeding PIN needles using the PIN needle feeding assembly includes the following steps.

[0113] Step 1-1, PIN needle storage: store the first PIN needle and the second PIN needle in corresponding PIN needle storage boxes.

[0114] Step 1-2, PIN needle vibration loading: The first PIN or the second PIN needle located in the PIN needle storage box slides from the inclined slide to the PIN needle vibration tray at the bottom through vibration or other means to realize PIN needle vibration loading of the PIN needle vibration tray.

[0115] Step 1-3, PIN needle posture adjustment: The PIN needle vibration tray vibrates and the PIN needle posture on it is adjusted.

[0116] Step 1-4, PIN needle posture detection: preferably use vision to detect the PIN needle posture on the PIN needle vibration tray, find the PIN needle that meets the set posture and record the position coordinates of the PIN needle on the PIN needle vibration tray.

[0117] In this embodiment, the PIN needle vibration material tray is a transparent plate, and a fill light is placed under the transparent plate to facilitate visual inspection.

[0118] Step 2, PIN needle feeding and grabbing: The PIN needle feeding robot grabs the PIN needle that meets the set posture according to the position coordinates of the PIN needle that meets the set posture.

[0119] Step 3: PIN needle positioning, specifically including the following steps.

[0120] Step 3-1, PIN needle transfer tray reset: The PIN needle transfer tray resets to the positioning position, and the side limit device of the transfer tray limits the PIN needle transfer tray.

[0121] Step 3-2, a primary inspection of the tooling incoming material: The tooling incoming material inspection device performs a primary inspection to determine whether the PIN needle positioning tooling has a PIN needle.

[0122] Step 3-3, PIN needle positioning: When there is no PIN needle on the PIN needle positioning tooling, the PIN needle feeding robot rotates to the positioning station and places the grasped PIN needle that meets the set posture on the corresponding PIN needle positioning tooling; the PIN needle positioning tooling positions the placed PIN needle, wherein the vertical section of the PIN needle is in contact with the vertical side of the L-shaped transition section limit groove, and the pin is inserted into the pin positioning groove.

[0123] Step 3-4, secondary inspection of tooling incoming materials: The tooling incoming material inspection device performs secondary inspection on whether there are PIN pins on the PIN pin positioning tooling.

[0124] Step 3-5, PIN needle feeding: When it is detected that both PIN needle positioning tools on the same PIN needle transfer tray have PIN needles, the PIN needle transfer tray is transferred along the PIN needle feeding slide rail to the PIN needle loading station and waits for loading.

[0125] Step 4: feeding the door lock housing once, specifically including the following steps.

[0126] Step 4-1, one-time transmission of the door lock housing: the door lock housing line body transmits the door lock housing to the first PIN needle assembly station and blocks the limit.

[0127] Step 4-2: The door lock housing is raised: the lifting assembly located directly below the first PIN assembly station is activated and lifted upward, so that the door lock housing rises to the set position along with the lifting plate.

[0128] Step 4-3, pressing the door lock housing: the pressing component located directly above the first PIN pin assembly station is lowered to press the top surface of the door lock housing away from the PIN pin hole.

[0129] Step 5: Transfer and assemble the first PIN needle, specifically including the following steps.

[0130] Step 5-1, the assembly clamp is moved to the PIN needle loading station: the PIN needle two-dimensional transfer plate in the PIN needle transfer assembly component in the first PIN needle assembly device slides to the PIN needle loading station under the action of the horizontal drive device.

[0131] Step 5-2, first PIN needle grabbing, specifically includes the following steps.

[0132] Step 5-2A, assembly jaws open: both the left assembly jaw and the right assembly jaw are opened outward.

[0133] Step 5-2B, Lowering the Assembly Jaw: The PIN 2D transfer plate, driven by the height-lifting mechanism, lowers the assembly jaws, causing them to descend until the assembly push plate enters the L-shaped slot of the first PIN's L-shaped transition section and is positioned to the set clearance from the horizontal section. At this point, the pin limit slot of the left assembly jaw faces the side of the pin gripping portion.

[0134] Step 5-2C: Move the left clamping jaw inward: Move the left clamping jaw inward a specified distance so that the pin retaining slot engages the pin from the side of the pin gripping portion. At this point, the depth of the pin entering the pin retaining slot is preferably greater than half the pin's width.

[0135] Step 5-2D, raising the height of the assembly clamp: the height of the assembly clamp is raised until the first PIN is disengaged from the PIN positioning tool.

[0136] Step 5-2E, Move the Right Assembly Jaw Inward: Move the right assembly jaw inward, fully engaging the first pin's gripping portion in the widthwise direction within the pin-retaining slot again, thereby forming a clamping engagement with the left assembly jaw. In this embodiment, the width of the pin-retaining slot in the clamping direction is preferably equal to or slightly greater than the pin's width.

[0137] In this embodiment, the two assembly clamps move synchronously to achieve synchronous grabbing of the two first PIN pins in the two PIN pin positioning fixtures on the PIN pin loading station.

[0138] Step 5-3: The first PIN is transferred to the first PIN assembly station: two assembly grippers holding the first PIN are synchronously slid horizontally to the first PIN assembly station.

[0139] Step 5-4, first PIN needle assembly, specifically includes the following steps.

[0140] Step 5-4A: Lower the assembly jaws: The two assembly jaws, which have been moved to the first PIN assembly station, lower themselves and extend into the corresponding positions of the two first PIN holes in the two door lock housings located at the first PIN assembly station. At this point, the pin heads are aligned with the pin holes of the first PIN holes.

[0141] Step 5-4B, insert the pin once: Figure 12 As shown, the assembly clamp moves horizontally toward the pin hole of the first PIN hole, so that the pin head enters the pin hole of the first PIN hole to a set distance A. In this embodiment, the set distance A is preferably half the length of the pin.

[0142] Step 5-4C, open the assembly jaws outward: Both the left assembly jaw and the right assembly jaw slide outward horizontally to open, and disengage the pin limit slot from the pin.

[0143] Step 5-4D, secondary insertion of the pin: the assembly push plate is moved horizontally toward the pin hole of the first PIN pin hole to a set distance, so that the pin is completely inserted into the pin hole of the first PIN pin hole.

[0144] Steps 5-6, Secondary Feeding of the Door Lock Housing: After the first pin is assembled, the pressing and lifting assemblies at the first pin assembly station are reset sequentially. The door lock housing, now assembled with the first pin, is then transferred downward to the second pin assembly station. The lifting and pressing assemblies at the second pin assembly station then operate sequentially, lifting and pressing the door lock housing, now assembled with the first pin, into position.

[0145] Step 5-5, transfer and assembly of the second PIN needle: The PIN needle transfer and assembly component in the second PIN needle assembly device adopts the same transfer and assembly method as the first PIN needle to complete the assembly of the second PIN needle.

[0146] The present invention realizes the automatic assembly of the PIN pin and the automobile door lock housing, saves labor, improves production efficiency, ensures the quality consistency of the assembled products, and reduces production costs.

[0147] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. An automatic assembly device for automobile door lock PIN pins, characterized by: It includes a door lock housing body, a first PIN needle assembly device and a second PIN needle assembly device; The door lock housing has a first PIN pin hole and a second PIN pin hole, which can be used to respectively install a first PIN pin and a second PIN pin; the first PIN pin and the second PIN pin each include a pin, an L-shaped transition section, and a power supply interface arranged in sequence; wherein the power supply interfaces of the first PIN pin and the second PIN pin are located in opposite positions; The door lock housing line is arranged along the Y direction for automatic transmission of the door lock housing, with the first and second PIN pin holes of the door lock housing facing upward and both arranged along the X direction; the door lock housing line is sequentially arranged with two PIN pin assembly stations along the transmission direction, namely: the first PIN pin assembly station and the second PIN pin assembly station; A lifting assembly is provided directly below each PIN pin assembly station, which is used to lift the door lock housing located on the corresponding PIN pin assembly station upwards; A pressing assembly is provided directly above each PIN assembly station, which is used to press the top surface of the door lock housing located at the corresponding PIN assembly station and after being lifted up; The first PIN pin assembly device and the second PIN pin assembly device are both arranged on the same side of the door lock housing linear body along the X direction, with the first PIN pin assembly device facing the first PIN pin assembly station, and the second PIN pin assembly device facing the second PIN pin assembly station; the first PIN pin assembly device and the second PIN pin assembly device each include a PIN pin feeding component, a PIN pin feeding robot, a PIN pin positioning component, and a PIN pin transfer assembly component; The PIN needle feeding assembly is used to provide a first PIN needle or a second PIN needle with a set posture; The PIN pin feeding robot is used to grab the first PIN pin or the second PIN pin in a set posture in the PIN pin feeding assembly and place the grabbed workpiece in the PIN pin positioning assembly; The PIN pin positioning assembly is used to locate the position of the first PIN pin or the second PIN pin, and exposes the tail of the pin adjacent to the L-shaped transition section to form a grabbing portion; The PIN needle transfer assembly assembly is used to grab, transfer and assemble the first PIN needle or the second PIN needle located in the PIN needle positioning assembly to the first PIN needle hole or the second PIN needle hole of the door lock housing located in the PIN needle assembly station; The PIN needle transfer assembly component includes a PIN needle two-dimensional transfer plate and an assembly clamp; The PIN needle two-dimensional transfer plate can realize horizontal movement in X direction and height lifting in Z direction; The assembly jaws are arranged on the PIN needle two-dimensional transfer plate, including an assembly left jaw, an assembly right jaw and an assembly push plate; The left and right clamping jaws can both slide left and right to open and close, and a pin limiting slot is provided in the middle of the clamping mating surface of the left clamping jaw. The assembly push plate can be inserted into the L-shaped groove of the L-shaped transition section and fit into the vertical section of the L-shaped transition section; the assembly push plate can move along the X direction under the drive of the corresponding thrust component, generating a thrust on the vertical section of the L-shaped transition section, so that the pin is inserted into the first PIN pinhole or the second PIN pinhole.

2. The automatic assembly equipment for automobile door lock PIN pins according to claim 1, characterized in that: The PIN needle feeding assembly includes a PIN needle vibrating material tray and a PIN needle posture visual detection device; wherein, the PIN needle posture visual detection device can detect the posture of the first PIN needle or the second PIN needle located in the PIN needle vibrating material tray, and transmit the detected posture to the PIN needle feeding robot.

3. The automatic assembly equipment for automobile door lock PIN pins according to claim 2, characterized in that: The PIN needle vibration feed tray is a plastic transparent flat plate with a lighting lamp arranged at the bottom thereof; a PIN needle storage box is arranged on the outside of the PIN needle vibration feed tray.

4. The automatic assembly equipment for automobile door lock PIN pins according to claim 1, characterized in that: The first PIN needle assembly device and the second PIN needle assembly device share the same PIN needle feeding robot; the PIN needle feeding robot includes a left feeding jaw and a right feeding jaw that can be opened and closed; wherein, a pin clamping groove with an L-shaped cross-section is provided at the bottom of the clamping mating surface of the left feeding jaw.

5. The automatic assembly equipment for automobile door lock PIN pins according to claim 4, characterized in that: Chamfers are provided on both sides of the bottom of the pin clamping groove and on both sides of the clamping mating surface of the right feeding jaw.

6. The automatic assembly equipment for automobile door lock PIN pins according to claim 1, characterized in that: The PIN needle positioning assembly includes a PIN needle feeding slide rail, a PIN needle transfer tray and a PIN needle positioning tooling; The PIN needle feeding slide rail is arranged along the X direction and has a positioning station and a PIN needle loading station; wherein, the positioning station is adjacent to the PIN needle feeding assembly, and the PIN needle loading station is adjacent to the door lock housing line; The PIN needle transfer plate is slidably connected to the PIN needle feeding slide rail and can slide back and forth between the positioning station and the PIN needle loading station; The PIN needle positioning tooling is set on the top of the PIN needle transfer plate, and the PIN needle positioning tooling is provided with a pin positioning groove, an L-shaped transition section limit groove and a grabbing avoidance groove; among them, the pin positioning groove is used for pin positioning, the L-shaped transition section limit groove is used for positioning the L-shaped transition section, and the grabbing avoidance groove is used to avoid the grabbing part of the first PIN needle or the second PIN needle.

7. The automatic assembly equipment for automobile door lock PIN pins according to claim 6, characterized in that: The PIN needle positioning assembly also includes a transfer plate side limit device and a tooling incoming material detection device arranged at the positioning station; The side limit device of the transfer tray can limit the position with the adjacent side of the PIN needle transfer tray located at the positioning station; The tooling incoming material detection device can detect whether there are PIN pins in the PIN pin positioning tooling.

8. The automatic assembly equipment for automobile door lock PIN pins according to claim 6, characterized in that: Several door lock shell transmission plates are arranged on the door lock shell line along the transmission direction. Each door lock shell transmission plate is provided with a lifting plate. Two door lock shell positioning tooling is provided along the Y direction on the lifting plate. A door lock shell is positioned and installed on each door lock positioning shell; the first PIN pins or the second PIN pins of the two door lock shells on each door lock shell transmission plate are arranged facing each other.

9. The automatic assembly equipment for automobile door lock PIN pins according to claim 8, characterized in that: Two PIN positioning fixtures are arranged on the PIN pin transfer tray. The center line of the two PIN pin positioning fixtures is parallel to the line of the door lock housing. The spacing between the two pin positioning slots in the two PIN pin positioning fixtures is equal to the spacing between the two first PIN pins or the two second PIN pins on each door lock housing transmission plate. Two assembly clamps are provided on the PIN pin two-dimensional transfer plate; the distance between the two assembly clamps is equal to the distance between the two first PIN pins or the two second PIN pins on each door lock housing transmission plate.

10. The automatic assembly equipment for automobile door lock PIN pins according to claim 1, characterized in that: The first PIN pin is a left PIN pin or a right PIN pin; the second PIN pin is a right PIN pin or a left PIN pin.

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