Bolt dislocation pushing feeding and assembling device

Abstract

The utility model discloses a plug pin dislocation pushing feeding assembly device which comprises a bottom plate, a plug pin feeding block and a dislocation block, the plug pin feeding block is provided with a feeding hole and a centre hole, and the dislocation block is driven by a second air cylinder to move between the feeding hole and the centre hole in a reciprocating mode. And the ejector pin pushes the plug pin from the material receiving hole to a target hole position. The device is additionally provided with a bolt guide chuck and a guide pipe to form a rigid guide channel to ensure the linear motion of the bolt. The positioning seat fixes the plastic part through the inserting column and the sliding groove, and the pneumatic rotary clamping air cylinder flexibly clamps the handle body through the swing arm and the downward pressing rubber head. An adjusting plate and a fourth air cylinder are arranged below the bottom plate, and overall horizontal displacement fine adjustment is achieved. According to the device, the structure is simplified through modular design, dependence of a manipulator is eliminated, the manufacturing cost is reduced, and the bolt is pressed between the handle body and the plastic part.

Description

Technical Field

[0001] This utility model specifically relates to a pin misalignment push-feed assembly device. Background Technology

[0002] As a core functional component of a suitcase, the handle typically consists of a handle body and linkage mechanisms at both ends. The key to these linkage mechanisms lies in the hinged connection between the handle body and the movable plastic parts via pins. The sliding hinged state is shown in the appendix to this application. Figure 1 As shown, the pin needs to be inserted into the pin connection hole at the lower end of the handle body. Sliding holes are provided on both sides of the plastic part, and both ends of the pin are inserted into these sliding holes to ensure smooth opening and closing of the handle. With the rapid increase in luggage production capacity, market demand has placed higher requirements on the precision and efficiency of luggage handle assembly, necessitating the development of fully automated assembly equipment to replace manual operation. When designing corresponding automated handle assembly equipment, it is essential to consider how to solve the problem of "automatic feeding and assembly of the pin."

[0003] For example, the Chinese invention patent document with publication number "CN113681282B" specifically discloses a "pin feeding assembly." This assembly mainly consists of a pin feeding vibratory feeder, a pin feeding channel, a sliding plate, a longitudinal cylinder A, a fixed plate and a discharge chute, and a robotic arm. The pins are automatically arranged by the vibratory feeder and conveyed to the feeding chute of the sliding plate via the pin feeding channel. When the feeding chute is full of pins, the longitudinal cylinder A drives the sliding plate to move laterally, aligning the feeding chute with the discharge chute of the fixed plate. During the movement of the sliding plate, the pins in the feeding chute are pushed to the discharge chute, and the robotic arm picks up the pins from the discharge chute and transports them to the car seat shoulder unlock handle housing within the tooling.

[0004] The existing pin loading assembly uses a robotic arm to transfer the pin from the discharge slot to the part to be assembled, which is costly. Furthermore, because the assembly relationship between the pin and the handle body is not a clearance fit, a certain amount of force is required to smoothly insert the pin into the handle body, a action that the robotic arm cannot perform. Therefore, the existing pin loading assembly cannot meet the requirements for the assembly of the handle body, plastic parts, and pins. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a pin misalignment push-feeding assembly device to address the shortcomings of the prior art, thereby completing the automatic feeding of the pin and accurately assembling the pin between the plastic part and the handle body.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: The latch misplacement push feeding and assembling device, including bottom plate and fixed on the latch feeding block of bottom plate, the feeding hole is penetrated in the latch feeding block, the discharge end of feeding hole is provided with latch misplacement block, the second air cylinder of installation is linked in the latch misplacement block of bottom plate, the latch misplacement block is provided with the receiving hole, its characterized in that: the latch feeding block is also penetrated with the ejector pin hole, the ejector pin hole is parallel with the feeding hole, the ejector pin is slidably arranged at the ejector pin hole, the ejector pin is linked with the third air cylinder of installation in the bottom plate, the second air cylinder is used to drive the reciprocating motion of latch misplacement block between feeding hole and ejector pin hole.

[0007] The latch is sequentially entered into the feeding hole of the latch feeding block by an external feeding system (such as air blowing). The second air cylinder drives the lateral movement of the latch misplacement block, so that the receiving hole of the latch misplacement block is aligned with the feeding hole to catch a latch. The second air cylinder moves reversely to drive the latch misplacement block to reset, so that the receiving hole is aligned with the ejector pin hole. At this time, the latch is in front of the ejector pin hole, and the ejector pin in the ejector pin hole is aligned with the end of the latch. At the same time, the other end of the latch misplacement block blocks the feeding hole. The third air cylinder drives the ejector pin to slide forward along the ejector pin hole to directly push the latch out of the receiving hole. The pushing force of the ejector pin accurately inserts the latch into the latch connecting hole below the end of the handle body, and the two ends of the latch are inserted into the sliding hole to complete the assembly. Therefore, the application can automatically feed the latch and accurately assemble the latch between the plastic part and the handle body. Through the linkage design of the latch misplacement block and the ejector pin, the mechanical hand grabbing and transferring steps are omitted, the structure is simplified, only two air cylinders (the second and third air cylinders) are needed to complete the lateral misplacement and push action, and the manufacturing cost is reduced. At the same time, the ejector pin is driven by the air cylinder, so that the pushing force and the stroke can be accurately controlled to ensure that the latch can overcome the assembly resistance of the handle body and the plastic part, and avoid the latch jamming or deflection caused by insufficient pushing force.

[0008] The latch misplacement push feeding and assembling device can be further provided with a latch guide chuck, the latch misplacement blocks are distributed between the latch guide chuck and the latch feeding block, the latch guide chuck is provided with a guide pipe positioning hole corresponding to the ejector pin hole, a latch guide pipe is fixed at the guide pipe positioning hole, and the latch guide pipe is hollow inside and open at both ends.

[0009] Using the above technical solution, when the pin misalignment block moves to the point where the receiving hole aligns with the feed hole, the guide chuck blocks the end of the receiving hole away from the feed hole. This prevents the pin from slipping out of the receiving hole when it is blown in from the feed hole. Simultaneously, the pin guide chuck guides the lateral movement of the pin misalignment block, improving the stability of the lateral movement and ensuring accurate alignment between the receiving hole and the feed hole, or between the receiving hole and the ejector pin hole. When the pin misalignment block moves to the point where the receiving hole aligns with the ejector pin hole, the guide tube positioning hole and the ejector pin hole are coaxially aligned, forming a rigid guide channel extending from the ejector pin hole to the target assembly position. This creates a smooth linear movement path, completing the precise insertion of the pin.

[0010] The aforementioned pin misalignment push-feed assembly device can be further configured as follows: one side of the guide tube positioning hole is connected to an adjustment opening groove that penetrates the side wall of the pin guide clamp, the upper side of the adjustment opening groove is a connecting arm, the connecting arm is provided with a countersunk hole, and the pin guide clamp is provided with a screw hole corresponding to the countersunk hole.

[0011] Using the above technical solution, the guide tube is inserted into the guide tube positioning hole. By adjusting the lateral opening of the slot, the guide tube can be slidable to adjust its position. The countersunk hole and screw hole are designed to be coaxial. After the screw is screwed in, it abuts against the guide tube, and the position of the guide tube is fixed by friction or local pressure.

[0012] The aforementioned pin misalignment push-feed assembly device can be further configured to include a positioning seat and a handle positioning component. The positioning seat has two sets of symmetrically distributed pins in the middle. A fixing seat is provided below the positioning seat. The fixing seat has a strip-shaped sliding groove adapted to the positioning seat. A third strip-shaped hole is evenly distributed around the positioning seat. The fixing seat has a set of third positioning holes corresponding to each set of third strip-shaped holes.

[0013] Using the above technical solution, two sets of pins are inserted into the first connecting hole in the middle of the plastic part to achieve clamping and positioning of the plastic part. When using two sets of pins to clamp the plastic part, the sliding holes on both sides of the plastic part are not blocked, facilitating the assembly of the pins. The handle positioning assembly fixes the relative position of the handle body and the plastic part. By loosening the fixing screw in the third positioning hole, the positioning seat can be moved laterally along the strip sliding groove. The relative position of the positioning seat and the pin pushing device can be adjusted according to the actual situation. After sliding the positioning seat to the target position, it is re-locked.

[0014] The aforementioned pin misalignment push-feed assembly device can be further configured as follows: the handle positioning component includes a pneumatic rotary clamping cylinder, the pneumatic rotary clamping cylinder includes a body and a swing arm linked with the body, the end of the swing arm is linked with a connecting rod, the end of the connecting rod away from the swing arm is linked with a rotary pressing rod through a linear bearing, and the lower end of the rotary pressing rod is linked with a pressing rubber head.

[0015] It should be noted that the pneumatic rotary clamping cylinder is existing technology and can be directly purchased. The cylinder body is driven by compressed air, which rotates the linked swing arm. The swing arm can also extend or retract. When it is necessary to clamp the handle body, the swing arm rotates and retracts until the pressure head presses against the handle body. Applying a uniform clamping force through the pressure head both fixes the handle position and avoids scratches on the workpiece caused by rigid contact.

[0016] The aforementioned pin misalignment push-feed assembly device can be further configured such that: the receiving hole includes a conical receiving slide and a cylindrical discharging slide, the large end of the conical receiving slide faces the pin feeding block, and the cylindrical discharging slide is connected to the small end of the conical receiving slide.

[0017] Using the above technical solution, when the receiving hole corresponds to the feed hole, the inclined surface design of the tapered slide prevents the pin from getting stuck at the inlet due to angular deviation, which is especially suitable for slender pins. When the receiving hole corresponds to the ejector pin hole, the cylindrical slide is coaxial with the ejector pin hole, ensuring that the pin pushing direction coincides with the axis of the target hole.

[0018] The aforementioned pin-displacement push-feed assembly device can be further configured as follows: an adjustment plate is connected to the bottom of the base plate, the adjustment plate is linked to a third slider, the third slider is linked to a third slide rail, and the end of the adjustment plate is linked to a fourth cylinder.

[0019] By adopting the above technical solution, the horizontal displacement of the adjustment plate and the overall structure above it can be precisely controlled by adjusting the extension length of the fourth cylinder, ensuring that the pin can be accurately inserted into the predetermined position, thereby improving assembly efficiency and precision.

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 An exploded view of the assembly of the handle body, plastic parts, and pin.

[0022] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 3 This is a partial exploded view of an embodiment of the present utility model;

[0024] Figure 4 This is a partially enlarged schematic diagram of an embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the assembly of the pin guide chuck, the pin misalignment block, and the pin feeding block according to an embodiment of the present utility model.

[0026] Figure 6 for Figure 5 Schematic diagram of the cross section along the AA direction;

[0027] Figure 7 This is a schematic diagram of the positioning seat portion of an embodiment of the present utility model.

[0028] Labeling notes: Plastic part a, first connecting hole a1, sliding hole a2; handle body b, pin connecting hole b1; base plate 1, pin loading block 2, feed hole 3, pin misalignment block 4, second cylinder 5, receiving hole 6, ejector pin hole 7, ejector pin 8, third cylinder 9, pin guide chuck 10, guide tube positioning hole 11, pin guide tube 12, adjusting opening slot 13, connecting arm 14, pneumatic rotary clamping cylinder 15, connecting rod 16, rotating downward pressing rod 17, downward pressing rubber head 18, conical receiving slide 19, cylindrical discharge slide 20, adjusting plate 21, third slider 22, third strip hole 23, third slide rail 24, fourth cylinder 25, positioning seat 26, insert pin 27, fixed seat 28. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figures 1 to 7The pin misalignment and push-feeding assembly device shown includes a base plate 1 and a pin feeding block 2 fixed on the base plate 1. The pin feeding block 2 has a through-hole 3, and a pin misalignment block 4 is provided at the outlet end of the through-hole 3. The pin misalignment block 4 is linked to a second cylinder 5 mounted on the base plate 1. The pin misalignment block 4 has a receiving hole 6, and a pin hole 7 is also through-hole in the pin feeding block 2. The pin hole 7 is parallel to the through-hole 3, and a pin 8 is slidably disposed at the pin hole 7. The pin 8 is linked to a third cylinder 9 mounted on the base plate 1. The second cylinder 5 drives the pin misalignment block 4 to reciprocate between the through-hole 3 and the pin hole 7. Pins enter the through-hole 3 of the pin feeding block 2 sequentially through an external feeding system (such as air blowing). The second cylinder 5 drives the pin misalignment block 4 to move laterally, aligning its receiving hole 6 with the through-hole 3 to catch one pin. The second cylinder 5 moves in the reverse direction, driving the pin misalignment block 4 to reset, aligning the receiving hole 6 with the ejector pin hole 7. At this time, the pin is directly in front of the ejector pin hole 7, with the ejector pin 8 inside the ejector pin hole 7 aligned with the end of the pin. Simultaneously, the other end of the pin misalignment block 4 blocks the feed hole 3. The third cylinder 9 drives the ejector pin 8 to slide forward along the ejector pin hole 7, directly pushing the pin out of the receiving hole 6. The thrust applied by the ejector pin 8 precisely inserts the pin into the pin connection hole b1 below the end of the handle body b, with both ends of the pin inserted into the sliding holes a2 respectively, completing the assembly. Thus, this application can automatically feed the pin, accurately assembling the pin between the plastic part and the handle body b. Through the linkage design of the pin misalignment block 4 and the ejector pin 8, the robotic arm gripping and transfer steps are eliminated, simplifying the structure. Only two cylinders (the second and third cylinders 9) are needed to complete the lateral misalignment and pushing operation, reducing manufacturing costs. Meanwhile, the ejector pin 8 is driven by a cylinder, which can precisely control the magnitude and stroke of the thrust, ensuring that the pin overcomes the assembly resistance between the handle body b and the plastic part, and avoiding pin jamming or deflection due to insufficient thrust.

[0031] It also includes a pin guide chuck 10, with pin misalignment blocks distributed between the pin guide chuck 10 and the pin feeding block 2. The pin guide chuck 10 has a guide tube positioning hole 11 corresponding to the ejector pin hole 7, and a pin guide tube 12 is fixed at the guide tube positioning hole 11. The pin guide tube 12 is hollow inside and open at both ends. When the pin misalignment block moves to the point where the receiving hole 6 corresponds to the feed hole 3, the guide chuck blocks the end of the receiving hole 6 away from the feed hole 3. This prevents the pin from slipping out of the receiving hole 6 when it is blown into the receiving hole 6 from the feed hole 3 by air. At the same time, the pin guide chuck 10 guides the lateral movement of the pin misalignment block, improving the lateral movement stability of the pin guide chuck 10 and ensuring that the receiving hole 6 and the feed hole 3 are accurately aligned or that the receiving hole 6 and the ejector pin hole 7 are accurately aligned. When the pin misalignment block moves to the position where the receiving hole 6 corresponds to the ejector pin hole 7, the guide tube positioning hole 11 and the ejector pin hole 7 are coaxially aligned, thus forming a rigid guide channel extending from the ejector pin hole 7 to the target assembly position, forming a smooth linear motion path, and completing the precise insertion of the pin.

[0032] One side of the guide tube positioning hole 11 is connected to an adjustment slot 13 that penetrates the side wall of the pin guide chuck 10. The upper side of the adjustment slot 13 forms a connecting arm 14, which has a countersunk hole. The pin guide chuck 10 has a screw hole corresponding to the countersunk hole. When the pin guide tube 12 is inserted into the guide tube positioning hole 11, the guide tube can be slid and its position adjusted by adjusting the lateral opening of the adjustment slot 13. The countersunk hole and the screw hole are coaxially designed. After the screw is screwed in, it abuts against the guide tube, and the position of the guide tube is fixed by friction or local pressure.

[0033] The system also includes a positioning seat 26 and a handle positioning assembly. The positioning seat 26 has two sets of symmetrically distributed inserts 27 in its center. A fixing seat 28 is located below the positioning seat 26, and the fixing seat 28 has a strip-shaped sliding groove adapted to the positioning seat 26. Third strip-shaped holes 23 are evenly distributed around the positioning seat 26, and the fixing seat 28 has a set of third positioning holes corresponding to each set of third strip-shaped holes 23. The two sets of inserts 27 are inserted into the first connecting hole in the center of the plastic part to clamp and position the plastic part. Using two sets of inserts 27 to clamp the plastic part does not block the sliding holes a2 on both sides of the plastic part, facilitating the assembly of the pins. The handle positioning assembly fixes the relative position of the handle body b and the plastic part. By loosening the fixing screws in the third positioning holes, the positioning seat 26 can be moved laterally along the strip-shaped sliding groove. The relative position of the positioning seat 26 and the pin pushing device can be adjusted according to the actual situation. After sliding the positioning seat 26 to the target position, it is re-locked.

[0034] The handle positioning assembly includes a pneumatic rotary clamping cylinder 15. The pneumatic rotary clamping cylinder 15 includes a body and a swing arm linked to the body. A connecting rod 16 is linked to the end of the swing arm. A rotating pressing rod 17 is linked to the end of the connecting rod 16 away from the swing arm via a linear bearing. A pressing head 18 is linked to the lower end of the rotating pressing rod 17. It should be noted that the pneumatic rotary clamping cylinder 15 is existing technology and can be directly purchased. The body of the pneumatic rotary clamping cylinder 15 is driven by compressed air, which rotates the linked swing arm. Simultaneously, the swing arm can extend or retract. When it is necessary to press the handle body b, the swing arm rotates and retracts until the pressing head 18 presses against the handle body b. The pressing head 18 applies a uniform clamping force, fixing the handle position while avoiding rigid contact that could scratch the workpiece.

[0035] The receiving hole 6 includes a tapered receiving slide 19 and a cylindrical discharging slide 20. The larger end of the tapered receiving slide 19 faces the pin loading block 2, and the cylindrical discharging slide 20 is connected to the smaller end of the tapered receiving slide 19. When the receiving hole 6 corresponds to the feeding hole 3, the inclined surface design of the tapered slide prevents the pin from getting stuck at the inlet due to angular deviation, which is especially suitable for slender pins. When the receiving hole 6 corresponds to the ejector pin hole 7, the cylindrical slide and the ejector pin hole 7 are coaxial, ensuring that the pin pushing direction coincides with the axis of the target hole.

[0036] An adjusting plate 21 is connected to the bottom of the base plate 1. The adjusting plate 21 is linked to a third slider 22, which in turn is linked to a third slide rail 24. A fourth cylinder 25 is linked to the end of the adjusting plate 21. By adjusting the extension and retraction length of the fourth cylinder 25, the horizontal displacement of the adjusting plate 21 and the entire structure above it can be precisely controlled, ensuring that the pin can be accurately inserted into the predetermined position, thereby improving assembly efficiency and accuracy.

[0037] The working principle of this embodiment is as follows: One end of the feed hole 3 can be connected to a transparent air tube, which carries a pin. Once the receiving hole 6 aligns with the feed hole 3, a set of pins is blown into the receiving hole 6. The second cylinder 5 moves in the opposite direction, driving the pin misalignment block 4 to reset, so that the receiving hole 6 is aligned with the ejector pin hole 7. At this time, the pin is directly in front of the ejector pin hole 7, and the ejector pin 8 in the ejector pin hole 7 is aligned with the end of the pin. The third cylinder 9 drives the ejector pin 8 to slide forward along the ejector pin hole 7, directly pushing the pin out of the receiving hole 6 and through the pin guide tube 12 until the thrust applied by the ejector pin 8 accurately inserts the pin into the hole below the end of the handle body b. The two ends of the pin are respectively inserted into the sliding hole a2, and the assembly is completed.

[0038] In summary, this embodiment can achieve orderly feeding of the pins and automatically and accurately assemble the pins with the handle body b and the plastic parts. The overall structure is not complicated and the cost is low.

Claims

1. A pin-displacement push-feeding assembly device, comprising a base plate and a pin-feeding block fixed on the base plate, wherein the pin-feeding block has a through-hole, and a pin-displacement block is provided at the outlet end of the through-hole; the pin-displacement block is linked to a second cylinder mounted on the base plate; and a receiving hole is provided on the pin-displacement block, characterized in that: The pin feeding block also has a through-hole for ejector pins, which are parallel to the feed hole. An ejector pin is slidably disposed at the ejector pin hole, and the ejector pin is linked to a third cylinder mounted on the base plate. The second cylinder is used to drive the pin misalignment block to reciprocate between the feed hole and the ejector pin hole.

2. The pin-misaligned push-feed assembly device according to claim 1, characterized in that: It also includes a pin guide chuck, wherein the pin misalignment block is distributed between the pin guide chuck and the pin feeding block, the pin guide chuck is provided with a guide tube positioning hole corresponding to the ejector pin hole, and a pin guide tube is fixed at the guide tube positioning hole. The pin guide tube is hollow inside and open at both ends.

3. The pin-misaligned push-feed assembly device according to claim 2, characterized in that: The guide tube positioning hole is connected to an adjustment opening groove that penetrates the side wall of the pin guide clamp. The upper side of the adjustment opening groove is a connecting arm, and the connecting arm is provided with a countersunk hole. The pin guide clamp is provided with a screw hole corresponding to the countersunk hole.

4. The pin-misaligned push-feed assembly device according to claim 1, characterized in that: It also includes a positioning seat and a handle positioning assembly. The positioning seat has two sets of symmetrically distributed inserts in the middle. A fixing seat is provided below the positioning seat. The fixing seat has a strip-shaped sliding groove that matches the positioning seat. The positioning seat has a third strip-shaped hole evenly distributed around its perimeter. The fixing seat has a set of third positioning holes corresponding to each set of third strip-shaped holes.

5. The pin-misaligned push-feed assembly device according to claim 4, characterized in that: The handle positioning assembly includes a pneumatic rotary clamping cylinder, which includes a body and a swing arm linked to the body. A connecting rod is linked to the end of the swing arm, and a rotary pressing rod is linked to the end of the connecting rod away from the swing arm via a linear bearing. A pressing rubber head is linked to the lower end of the rotary pressing rod.

6. The pin-misaligned push-feed assembly device according to claim 1, characterized in that: The receiving hole includes a conical receiving slide and a cylindrical discharging slide. The large end of the conical receiving slide faces the feeding block of the pin, and the cylindrical discharging slide is connected to the small end of the conical receiving slide.

7. The pin-misaligned push-feed assembly device according to any one of claims 1 to 6, characterized in that: An adjustment plate is connected to the bottom of the base plate, the adjustment plate is linked to a third slider, the third slider is linked to a third slide rail, and a fourth cylinder is linked to the end of the adjustment plate.

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