Automatic assembly equipment for lock cylinder

By designing an automated assembly equipment with a ring conveyor and multiple feeding devices, the problems of low assembly efficiency and insufficient precision of lock cylinders were solved, realizing the automated assembly of all lock cylinder components, improving production efficiency and product quality, and adapting to large-scale production.

CN121848122BActive Publication Date: 2026-05-12YUEQING HONGXU AUTOMATION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-03-17
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The current lock cylinder assembly industry generally adopts manual or semi-automatic modes, which cannot achieve automatic assembly of all components in sequence. This results in low assembly efficiency, inaccurate positioning, and sequence deviation, which cannot meet the needs of large-scale and high-precision production.

Method used

An automated assembly device was designed, comprising a ring conveyor and multiple feeding devices. The device achieves the sequential automatic assembly of lock housing, dial wheel, lock cylinder, connecting rod, handle, and snap ring through the cyclic movement of the clamp. The device utilizes the cooperation of the unlocking mechanism and the moving block to achieve stable fixation and precise positioning of the parts. Combined with the use of a vibratory feeder and a cylinder, the device achieves automatic conveying and precise assembly of the parts.

Benefits of technology

It enables the sequential automatic assembly of all lock cylinder components, improving assembly accuracy and finished product qualification rate, adapting to the needs of large-scale production, reducing labor costs, and ensuring the continuity and precision of the assembly process.

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Abstract

The application relates to an automatic assembly equipment for a lock cylinder, which comprises a ring-shaped conveying device and a lock shell feeding device, a dial wheel feeding device, a lock cylinder and connecting rod feeding device, a handle feeding device and a clasp spring feeding device arranged along the ring-shaped conveying device in sequence; the ring-shaped conveying device comprises a clamp, the clamp is sequentially transmitted to the lock shell feeding device, the dial wheel feeding device, the lock cylinder and connecting rod feeding device, the handle feeding device and the clasp spring feeding device, and then returns to the initial position; the lock shell feeding device feeds the lock shell to the corresponding clamp; the dial wheel feeding device feeds the dial wheel to the corresponding clamp and assembles the dial wheel with the lock shell; the lock cylinder and connecting rod feeding device feeds the lock cylinder and connecting rod and assembles the lock cylinder and connecting rod with the lock shell and the dial wheel; the handle feeding device feeds the handle to the corresponding clamp and assembles the handle; and the clasp spring feeding device feeds the clasp spring to the corresponding clamp and assembles the clasp spring.
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Description

Technical Field

[0001] This invention relates to an automatic assembly device, specifically an automatic assembly device for a lock cylinder. Background Technology

[0002] As the core transmission component of a lock, the lock cylinder's assembly precision and efficiency directly determine the lock's opening flexibility, structural stability, and security performance. It is widely used in various scenarios such as residential buildings, commercial buildings, and transportation vehicles. The fitting precision between the lock cylinder and the lock case, the transmission alignment precision between the dial wheel and the lock cylinder body, the connection consistency between the connecting rod and the dial wheel, the fixing reliability of the snap ring, and the smooth linkage between the handle and the connecting rod all have a decisive impact on the overall performance of the lock. Furthermore, the sequential assembly continuity of each component directly affects the assembly efficiency and the finished product qualification rate.

[0003] Currently, the lock cylinder assembly industry generally adopts manual or semi-automatic assembly modes, both of which have obvious defects. They cannot achieve automatic assembly of all components in sequence, making it difficult to meet the needs of large-scale, high-precision production. Among them, manual assembly is still the mainstream method for small and medium-sized manufacturers. Workers need to manually complete the loading, positioning, docking and debugging of each component in sequence. This not only requires a high level of operational proficiency, but is also prone to problems such as sequence deviation and inaccurate positioning, resulting in assembly defects. In addition, it is inefficient and has high labor costs, making it unsuitable for large-scale production.

[0004] Some companies have introduced semi-automatic assembly equipment that can only automate the assembly of some components or a single model of lock cylinder. It cannot complete the fully automated assembly of all components in the above complete sequence. Key processes still require manual assistance, which disrupts the continuity of assembly. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an automatic assembly device for lock cylinders.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a ring conveyor and, sequentially arranged along the ring conveyor, a lock case feeding device, a dial wheel feeding device, a lock cylinder and connecting rod feeding device, a handle feeding device, and a snap ring feeding device; the ring conveyor includes a clamp that sequentially transfers the clamp to the lock case feeding device, the dial wheel feeding device, the lock cylinder and connecting rod feeding device, the handle feeding device, and the snap ring feeding device, and then returns to its initial position; the lock case feeding device feeds the lock case to the corresponding clamp; the dial wheel feeding device feeds the dial wheel to the corresponding clamp and assembles it with the lock case; the lock cylinder and connecting rod feeding device feeds the lock cylinder and connecting rod and assembles it with the lock case and the dial wheel; the handle feeding device... Handle feeding device: feeds the handle to the corresponding fixture and assembles it; Snap spring feeding device: feeds the snap spring to the corresponding fixture and assembles it; The fixture includes a base, a moving block, a moving spring and an unlocking mechanism. The base is provided with a receiving groove for placing the lock case and the dial wheel. The base is also provided with a fixing groove, which is horizontal and perpendicular to the receiving groove and extends to communicate with the receiving groove. The moving block is slidably disposed in the fixing groove. The moving spring is disposed on the moving block and drives the moving block to move towards the receiving groove. The moving block and the moving spring constitute the fixing of the lock case and the dial wheel on the base. The unlocking mechanism is disposed on the base and has an unlocking state that drives the moving block to move away from the receiving groove.

[0007] By adopting the above technical solution, the circular conveyor drives the fixture to move in a cycle, sequentially transferring the fixture to each feeding device. The lock shell feeding device first feeds the lock shell into the fixture, and the fixture fixes the lock shell through the cooperation of the moving block and the moving spring. Subsequently, the feeding devices for the dial wheel, lock cylinder and connecting rod, handle, and snap ring sequentially complete the feeding and assembly of the corresponding parts. After assembly, the fixture returns to the initial position with the circular conveyor, and the unlocking mechanism can drive the moving block to reset to remove the finished product. This realizes the automatic sequential assembly of all lock cylinder components, replacing manual and semi-automatic assembly modes, and solving the problems of low efficiency, inaccurate positioning, and sequence deviation in manual assembly. At the same time, the fixture can stably fix the lock shell and dial wheel, avoiding part displacement during assembly, improving assembly accuracy and finished product qualification rate, and adapting to the needs of large-scale production.

[0008] The present invention is further configured such that: the unlocking mechanism includes an unlocking rod, a slide rail is provided on the base for the unlocking rod to slide, the slide rail is located below the receiving groove and parallel to the receiving groove, the slide rail is connected to the receiving groove and the fixing groove, the unlocking rod has an unlocking inclined surface, the moving block has an extension portion extending to the slide rail and abutting against the unlocking inclined surface, and the moving unlocking rod constitutes a drive for the moving block.

[0009] By adopting the above technical solution, during unlocking, the unlocking rod slides along the slide rail of the base, and its unlocking inclined surface abuts against the extension of the moving block. The inclined surface drive drives the moving block to move away from the receiving groove, releasing the fixation of the lock shell and the dial wheel. During assembly, the unlocking rod resets, and the moving block resets and fixes the parts under the action of the moving spring. The unlocking structure is simple and easy to operate, and can quickly realize the unlocking and reset of the fixture, avoiding the tedious operation of manual unlocking. At the same time, the inclined surface drive is smooth, which can prevent damage to parts during the unlocking process and ensure the continuity of assembly and the integrity of parts.

[0010] The invention is further configured such that: the movable block includes an upper movable block and a lower movable block, the movable spring includes an upper movable spring and a lower movable spring, an extension is disposed on the lower movable block, the upper movable spring and the upper movable block constitute a fixing of the dial wheel, and the lower movable spring and the lower movable block constitute a fixing of the lock housing; the lower movable block is provided with an auxiliary fixing part extending into the dial wheel groove of the lock housing and the auxiliary fixing part is opposite to the dial wheel, the auxiliary fixing part has a linkage unlocking state that drives the upper movable block to unlock; the top of the lower movable block is provided with a sliding groove for the upper movable block to slide.

[0011] By adopting the above technical solution, during assembly, the upper moving block fixes the dial wheel under the action of the upper moving spring, and the lower moving block fixes the lock housing under the action of the lower moving spring. The auxiliary fixing part of the lower moving block extends into the dial wheel groove of the lock housing and is opposite to the dial wheel, further limiting the dial wheel. The upper moving block can slide along the sliding groove of the lower moving block to adapt to the fixing of dial wheels of different sizes and the lock housing. This achieves precise fixing of the lock housing and the dial wheel separately. The auxiliary fixing part can prevent the dial wheel from shifting during assembly, improving assembly accuracy. The setting of the sliding groove enhances the versatility of the fixture, which can be adapted to the assembly of various specifications of lock cylinders, reducing fixture replacement costs and improving production flexibility.

[0012] The invention is further configured such that: the base includes a base plate, a left block and a right block, the left block and the right block are disposed on the base plate and there is a separation space between the left block and the right block, an extension plate is provided on the opposite surface of the left block and the right block, the extension plate divides the separation space into a receiving groove and a slide, a notch is provided in the middle of the extension plate and forms a connection between the receiving groove and the slide, the left block and the right block are provided with grooves perpendicular to the separation space and serve as fixing grooves; a fixing post is also provided on the base plate and the fixing post is opposite to the fixing groove, a moving spring is disposed between the fixing post and the moving block, and the top of the left block and the right block is arc-shaped.

[0013] By adopting the above technical solution, the base consists of a base plate, a left block, and a right block. The separation space between the left and right blocks is divided into a receiving groove and a slide by an extension plate, and the notch connects the two. The moving spring is installed between the fixed column and the moving block on the base plate, driving the moving block to fix the parts. The arc-shaped tops of the left and right blocks facilitate the loading and unloading of parts. The base structure is reasonably designed, and the separation layout of the receiving groove and the slide is compact, which facilitates the installation and operation coordination of each component. The fixed column can ensure that the moving spring is installed firmly, and the arc-shaped top can prevent jamming when loading and unloading parts, thus improving assembly efficiency. At the same time, the base has high overall strength, which can extend the service life of the equipment.

[0014] The present invention is further configured such that: the dial feeding device includes a dial vibrating plate, a dial feeding track, a locking block and a dial moving mechanism, the dial vibrating plate is connected to the dial feeding track, the locking block is disposed at the end of the feeding track, the locking block is provided with a locking groove for accommodating the dial, and the dial moving mechanism has a moving state of moving the dial located in the locking groove to the corresponding fixture.

[0015] By adopting the above technical solution, the vibratory feeder transports the dial wheel to the dial wheel feeding track in an orderly manner. The dial wheel moves along the track to the end, where the positioning slot of the positioning block positions the dial wheel. Subsequently, the dial wheel moving mechanism moves the dial wheel from the positioning slot to the lock housing of the corresponding fixture to complete the assembly. The vibratory feeder can realize automatic and orderly feeding of the dial wheel, replacing manual feeding and reducing labor costs. The positioning block can accurately position the dial wheel, preventing it from shifting during movement, ensuring accurate alignment of the dial wheel and the lock housing, improving assembly accuracy and feeding efficiency, and ensuring assembly continuity.

[0016] The present invention is further configured such that: the lock cylinder and connecting rod feeding device includes a lock cylinder vibratory feeder, a lock cylinder feeding track, a connecting rod vibratory feeder, a connecting rod feeding track, a connecting track, a lock cylinder pushing cylinder, a connecting rod pushing cylinder, a lock cylinder and connecting rod moving mechanism, and positioning grippers. The lock cylinder vibratory feeder is connected to the lock cylinder feeding track, and the connecting rod vibratory feeder is connected to the connecting rod feeding track. The lock cylinder feeding track and the connecting rod feeding track are parallel. The connecting track is located between the end of the lock cylinder feeding track and the end of the connecting rod feeding track. An assembly position is provided on the connecting track. The lock cylinder pushing cylinder is located on the other side of the lock cylinder feeding track opposite to the connecting track and pushes the lock cylinder to the assembly position. The connecting rod push cylinder is located on the other side of the connecting rod feeding track relative to the connecting track and pushes the connecting rod to the assembly position. A combination cylinder is set on one side of the assembly position and a stop block is set on the other side. The combination cylinder has the function of pushing the connecting rod in the assembly position into the lock cylinder assembly state. The lock cylinder and connecting rod moving mechanism has the function of moving the assembled connecting rod and lock cylinder to the corresponding fixture. The positioning gripper is set on the corresponding fixture and has the function of positioning the lock cylinder and connecting rod in the corresponding fixture. Both the lock cylinder push cylinder and the connecting rod push cylinder push the corresponding block by pushing the corresponding block, and this block has a groove corresponding to the corresponding track, thereby removing the corresponding component.

[0017] By adopting the above technical solution, the lock cylinder vibratory feeder and the connecting rod vibratory feeder respectively transport the lock cylinder and the connecting rod to the corresponding feeding track. The lock cylinder push cylinder pushes the lock cylinder to the assembly position on the connecting track, and the connecting rod push cylinder pushes the connecting rod to the same assembly position. The assembly cylinder pushes the connecting rod into the lock cylinder to complete the assembly. The stop block limits the parts. Then, the lock cylinder and connecting rod moving mechanism moves the assembled lock cylinder and connecting rod to the fixture to complete the assembly with the lock case and the dial wheel. This realizes the automatic synchronous assembly of the lock cylinder and connecting rod, replacing manual assembly and solving the problem of inconsistent connection in manual assembly. The limiting of the assembly position and the precise push of the push cylinder ensure the assembly accuracy of the lock cylinder and connecting rod, improve assembly efficiency and finished product qualification rate, and ensure the continuity of the entire assembly process.

[0018] The present invention is further configured such that: the handle feeding device includes a handle transmission belt, a first handle mover, a second handle mover, a rotator, a turntable, and a blower mechanism; the first handle mover has a turning state in which it moves the handle located at the end of the handle transmission belt to the turntable; the rotator drives the turntable to rotate; the blower mechanism is opposite to the turntable and has an installation state in which it blows a spring into the handle; and the second handle mover has a feeding state in which it moves the handle located on the turntable to the corresponding clamp.

[0019] By adopting the above technical solution, the handle is conveyed to the end via a handle transmission belt. The first handle mover moves the handle to the transfer table, and the rotary mechanism drives the transfer table to rotate and adjust the handle's posture. The blower mechanism blows the spring into the handle, and the rotary mechanism rotates the handle back. Subsequently, the second handle mover moves the handle to the fixture to complete the assembly. This achieves automatic handling, posture adjustment, and cleaning, avoiding the tediousness and deviation of manual posture adjustment. The blower mechanism can feed the spring, and the transfer table ensures smooth connection between handle feeding and assembly, improving assembly efficiency.

[0020] The present invention is further configured such that: the snap ring feeding device includes a snap ring vibratory plate, a snap ring feeding track, a vertical block, a vertical cylinder, and a closing cylinder. The snap ring vibratory plate is connected to the snap ring feeding track. A stop block is provided at the end of the snap ring feeding track. A passage is provided between the stop block and the snap ring feeding track for the snap ring to pass through vertically. The vertical cylinder drives the vertical block to move vertically and the vertical block is located at the top of the passage. There is an installation position for placing a clamp below the passage. The closing cylinder is provided on both sides of the installation position and is used to close and fix the snap ring. The stop block has a magnetic attraction state that can attract the snap ring.

[0021] By adopting the above technical solution, the snap ring vibratory feeder transports the snap ring to the snap ring feeding track. The snap ring moves along the track to the end, and the passage between the stop block and the track allows the snap ring to pass vertically. The vertical cylinder drives the vertical block to move, controlling the snap ring to fall. After the snap ring falls onto the clamp at the installation position, the closing cylinder closes and fixes the snap ring, completing the assembly. This achieves automatic feeding and closing and fixing of the snap ring, replacing the tedious operation of manual snap ring installation, avoiding the problem of insecure manual closing. The vertical block can precisely control the timing of the snap ring's fall, and the closing cylinder ensures reliable fixing of the snap ring, preventing the snap ring from falling off during lock cylinder use and improving the structural stability of the lock cylinder.

[0022] The present invention is further configured such that: the snap ring feeding device includes a push cylinder, a movable seat, a rotary motor, a handle gripper cylinder, a moving track, and a push rod; the push cylinder drives the movable seat to move to the installation position; the rotary motor is mounted on the movable seat and drives the handle gripper cylinder to rotate; the handle gripper cylinder has a clamping state for clamping the handle on the clamp; the moving track is parallel to the snap ring feeding track and opposite to the installation position; the movable seat is slidably mounted on the moving track; one end of the push rod is fixed to the movable seat, and the other end is linked with the push cylinder to form the push cylinder driving the movable seat.

[0023] By adopting the above technical solution, during snap ring assembly, the push cylinder drives the moving seat to move along the moving track to the installation position via the push rod. The rotary motor drives the handle gripper cylinder to rotate, and the handle gripper cylinder clamps the handle on the fixture to adjust its posture to match the snap ring assembly angle, ensuring accurate snap ring installation. By adjusting the handle posture, the assembly alignment of the snap ring with the handle and lock cylinder can be ensured, solving the problem of snap ring assembly difficulties and insecure fixing caused by handle posture deviation. The cooperation between the moving seat and the moving track ensures smooth adjustment, and the gripper cylinder clamps reliably, avoiding damage to the handle and further improving assembly accuracy and stability.

[0024] The present invention is further configured such that: the circlip feeding device further includes a circlip frame, a vertical cylinder is disposed on the circlip frame, a stop block is disposed on the circlip frame, and a circlip extension is provided on the top of the stop block extending toward the location of the circlip feeding track, and a guide port is provided on the circlip extension for the vertical block to pass through.

[0025] By adopting the above technical solution, the snap ring frame provides installation support for the vertical cylinder and the stop block. The snap ring extension of the stop block extends into the snap ring feeding track to assist in limiting the snap ring in the track. The vertical block passes through the guide port of the snap ring extension and moves vertically along the guide port to control the snap ring to fall. The snap ring frame improves the stability of the installation of each component and avoids the component shaking during assembly, which affects the accuracy. The snap ring extension can prevent the snap ring from deviating or falling off at the end of the feeding track. The guide port can guide the movement of the vertical block to ensure the precise movement of the vertical block, further ensuring the accurate falling position of the snap ring and improving the feeding and assembly accuracy of the snap ring. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the feeder device of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the lock cylinder and connecting rod feeding device of the present invention;

[0029] Figure 4 This is a schematic diagram of the handle feeding device of the present invention;

[0030] Figure 5 This is a schematic diagram of the clamp with a lock housing and a dial of the present invention;

[0031] Figure 6 This is a schematic diagram of the clamp of the present invention without a lock case and a dial;

[0032] Figure 7 This is an exploded view of the fixture of the present invention;

[0033] Figure 8 This is a cross-sectional view of the fixture of the present invention;

[0034] Figure 9 This is a schematic diagram of the circlip feeding device with clamps according to the present invention;

[0035] Figure 10 This is a schematic diagram of the circlip feeding device without clamps according to the present invention;

[0036] Figure 11 For the present invention Figure 9 A magnified view of part A in the image;

[0037] Figure 12 For the present invention Figure 10 A magnified view of part B in the image.

[0038] In the diagram: 1. Circular conveyor; 2. Lock case feeding device; 3. Dial wheel feeding device; 31. Dial wheel vibratory feeder; 32. Dial wheel feeding track; 33. Positioning block; 34. Dial wheel moving mechanism; 35. Positioning slot; 4. Lock cylinder and connecting rod feeding device; 40. Stop block; 401. Positioning gripper; 41. Lock cylinder vibratory feeder; 42. Lock cylinder feeding track; 43. Connecting rod vibratory feeder; 44. Connecting rod feeding track; 45. Connecting track; 46. Lock cylinder pushing cylinder; 47. Connecting rod pushing cylinder; 48. Lock cylinder and connecting rod moving mechanism; 49. Combined cylinder; 5. Handle feeding device; 51. Handle transmission belt; 52. Handle first mover; 53. Handle second mover; 54. Rotator; 55. Transition table; 56. Blowering mechanism; 6. Snap ring feeding device; 61. Snap ring vibratory feeder; 62. Snap ring feeding track; 63. 64. Vertical block; 65. Vertical cylinder; 66. Closing cylinder; 67. Block; 68. Pass-through port; 69. Push cylinder; 60. Moving seat; 61. Rotary motor; 62. Handle gripper cylinder; 63. Moving track; 64. Push rod; 65. Snap ring frame; 66. Snap ring extension; 67. Guide port; 78. Fixture; 79. Base; 70. Base plate; 71. Left block; 70. 13. Right block; 714. Receiving groove; 715. Fixing groove; 716. Slide rail; 717. Extension plate; 72. Moving block; 721. Upper moving block; 722. Lower moving block; 724. Auxiliary fixing part; 725. Sliding groove; 73. Moving spring; 731. Upper moving spring; 732. Lower moving spring; 74. Unlocking mechanism; 741. Unlocking rod; 742. Unlocking ramp; 75. Fixing post. Detailed Implementation

[0039] like Figure 1-12As shown, this invention discloses an automatic assembly device for lock cylinders, including a ring conveyor 1 and a lock case feeding device 2, a dial wheel feeding device 3, a lock cylinder and connecting rod feeding device 4, a handle feeding device 5, and a snap ring feeding device 6 arranged sequentially along the ring conveyor 1; the ring conveyor 1 includes a clamp 7, which sequentially transmits the clamp 7 to the lock case feeding device 2, the dial wheel feeding device 3, the lock cylinder and connecting rod feeding device 4, the handle feeding device 5, and the snap ring feeding device 6, and then returns to its initial position; the lock case feeding device 2 feeds the lock case to the corresponding clamp 7; the dial wheel feeding device 3 feeds the dial wheel to the corresponding clamp 7 and... Assembly with the lock housing; Lock cylinder and connecting rod feeding device 4: feeding the lock cylinder and connecting rod and assembling them with the lock housing and dial wheel; Handle feeding device 5: feeding the handle to the corresponding fixture 7 and assembling it; Snap spring feeding device 6: feeding the snap spring to the corresponding fixture 7 and assembling it; Fixture 7 includes a base 71, a moving block 72, a moving spring 73 and an unlocking mechanism 74. The base 71 is provided with a receiving groove 714 for placing the lock housing and dial wheel. The base 71 is also provided with a fixing groove 715, which is horizontal and perpendicular to the receiving groove 714 and extends to communicate with the receiving groove 714. The moving block 72 is slidably disposed in the fixing groove 715. The movable spring 73 is mounted on the movable block 72 and drives the movable block 72 to move towards the receiving groove 714. The movable block 72 and the movable spring 73 together fix the lock shell and the dial wheel on the base 71. The unlocking mechanism 74 is mounted on the base 71 and has an unlocked state that drives the movable block 72 to move away from the receiving groove 714. The annular conveying device 1 drives the clamp 7 to move cyclically, sequentially transferring the clamp 7 to each feeding device. The lock shell feeding device 2 first feeds the lock shell into the clamp 7. The clamp 7 fixes the lock shell through the cooperation of the movable block 72 and the movable spring 73. Then the dial wheel, lock cylinder and connecting rod, handle, and snap ring are added. The feeding device 6 sequentially completes the feeding and assembly of the corresponding parts. After assembly, the fixture 7 returns to the initial position with the ring conveyor 1. The unlocking mechanism 74 can drive the moving block 72 to reset and remove the finished product. This realizes the automatic sequential assembly of all lock cylinder components, replacing manual and semi-automatic assembly modes, and solving the problems of low efficiency, inaccurate positioning, and sequence deviation in manual assembly. At the same time, the fixture 7 can stably fix the lock shell and the dial wheel, preventing parts from shifting during assembly, improving assembly accuracy and finished product qualification rate, and adapting to the needs of large-scale production. It should be noted that the lock shell feeding mechanism can be completed by using conventional feeding devices such as mechanical handles, so it will not be described in detail.

[0040] The unlocking mechanism 74 includes an unlocking rod 741. A slide rail 716 is provided on the base 71 for the unlocking rod 741 to slide along. The slide rail 716 is located below and parallel to the receiving groove 714. The slide rail 716 communicates with the receiving groove 714 and the fixing groove 715. The unlocking rod 741 has an unlocking ramp 742. The moving block 72 has an extension extending to the slide rail 716 and abutting against the unlocking ramp 742. The moving unlocking rod 741 drives the moving block 72. When unlocking, the unlocking rod 741 slides along the slide rail 716 of the base 71. 16. Sliding: The unlocking ramp 742 abuts against the extension of the moving block 72. The ramp drives the moving block 72 to move away from the receiving groove 714, releasing the lock case and the dial wheel. During assembly, the unlocking rod 741 resets, and the moving block 72 resets and fixes the parts under the action of the moving spring 73. The unlocking structure is simple and easy to operate, and can quickly unlock and reset the clamp 7, avoiding the tedious operation of manual unlocking. At the same time, the ramp transmission is smooth, which can prevent damage to parts during the unlocking process and ensure the continuity of assembly and the integrity of parts.

[0041] The movable block 72 also includes an upper movable block 721 and a lower movable block 722. The movable spring 73 also includes an upper movable spring 731 and a lower movable spring 732. An extension is disposed on the lower movable block 722. The upper movable spring 731 and the upper movable block 721 constitute a fixation of the dial wheel, and the lower movable spring 732 and the lower movable block 722 constitute a fixation of the lock housing. The lower movable block 722 is provided with an auxiliary fixing part 724 extending into the dial wheel groove of the lock housing, and the auxiliary fixing part 724 is opposite to the dial wheel. The auxiliary fixing part 724 has a linkage unlocking state that drives the upper movable block 721 to unlock. The top of the lower movable block 722 is provided with a sliding groove 725 for the upper movable block 721 to slide. During assembly, The upper moving block 721 fixes the dial wheel under the action of the upper moving spring 731, and the lower moving block 722 fixes the lock housing under the action of the lower moving spring 732. The auxiliary fixing part 724 of the lower moving block 722 extends into the dial wheel groove of the lock housing and is opposite to the dial wheel, further limiting the dial wheel. The upper moving block 721 can slide along the sliding groove 725 of the lower moving block 722 to adapt to the fixing of dial wheels of different sizes and lock housings; to achieve precise fixing of the lock housing and the dial wheel respectively. The auxiliary fixing part 724 can prevent the dial wheel from shifting during assembly, improve the assembly accuracy, and the setting of the sliding groove 725 enhances the versatility of the fixture 7, which can be adapted to the assembly of various specifications of lock cylinders, reduce the replacement cost of the fixture 7, and improve production flexibility.

[0042] The base 71 includes a base plate 711, a left block 712, and a right block 713. The left block 712 and the right block 713 are disposed on the base plate 711, and there is a separation space between the left block 712 and the right block 713. An extension plate 717 is provided on the opposite side of the left block 712 and the right block 713. The extension plate 717 divides the separation space into a receiving groove 714 and a slide rail 716. A notch is provided in the middle of the extension plate 717, which forms a connection between the receiving groove 714 and the slide rail 716. The left block 712 and the right block 713 are provided with grooves perpendicular to the separation space, which serve as fixing grooves 715. A fixing post 75 is also provided on the base plate 711, and the fixing post 75 is opposite to the fixing groove 715. A moving spring 73 is disposed between the fixing post 75 and the moving block 72. The tops of the left block 712 and the right block 713 are... The arc-shaped base 71 consists of a base plate 711, a left block 712, and a right block 713. The separation space between the left block 712 and the right block 713 is divided into a receiving groove 714 and a slide rail 716 by an extension plate 717. The notch connects the two. The moving spring 73 is installed between the fixed post 75 and the moving block 72 on the base plate 711, driving the moving block 72 to fix the parts. The arc-shaped tops of the left block 712 and the right block 713 facilitate the loading and unloading of parts. The base 71 has a reasonable structural design, and the separation layout of the receiving groove 714 and the slide rail 716 is compact, which facilitates the installation and operation of each component. The fixed post 75 can ensure that the moving spring 73 is installed firmly, and the arc-shaped top can prevent jamming when loading and unloading parts, thus improving assembly efficiency. At the same time, the base 71 has high overall strength, which can extend the service life of the equipment.

[0043] The dial wheel feeding device 3 includes a dial wheel vibratory feeder 31, a dial wheel feeding track 32, a locking block 33, and a dial wheel moving mechanism 34. The dial wheel vibratory feeder 31 is connected to the dial wheel feeding track 32. The locking block 33 is located at the end of the feeding track and has a locking groove 35 for accommodating the dial wheel. The dial wheel moving mechanism 34 has the function of moving the dial wheel located in the locking groove 35 to the corresponding clamp 7. The dial wheel vibratory feeder 31 orderly conveys the dial wheel to the dial wheel feeding track 32. The dial wheel moves along the track to the end, and the positioning groove 35 of the positioning block 33 positions the dial wheel. Then, the dial wheel moving mechanism 34 moves the dial wheel from the positioning groove 35 to the lock housing of the corresponding fixture 7 to complete the assembly. The vibratory feeder can realize the automatic and orderly feeding of the dial wheel, replacing manual feeding and reducing labor costs. The positioning block 33 can accurately position the dial wheel to avoid deviation when the dial wheel moves, ensuring accurate alignment of the dial wheel and the lock housing, improving assembly accuracy and feeding efficiency, and ensuring assembly continuity.

[0044] The lock cylinder and connecting rod feeding device 4 includes a lock cylinder vibratory feeder 41, a lock cylinder feeding track 42, a connecting rod vibratory feeder 43, a connecting rod feeding track 44, a connecting track 45, a lock cylinder pushing cylinder 46, a connecting rod pushing cylinder 47, a lock cylinder and connecting rod moving mechanism 48, and a positioning gripper 401. The lock cylinder vibratory feeder 41 is connected to the lock cylinder feeding track 42, and the connecting rod vibratory feeder 43 is connected to the connecting rod feeding track 44. The lock cylinder feeding track 42 and the connecting rod feeding track 44 are parallel, and the connecting track 45 is located on the lock cylinder feeding track. Between the end of the 42 and the end of the connecting rod feeding track 44, a combination position is provided on the connecting track 45. The lock cylinder pushing cylinder 46 is located on the other side of the lock cylinder feeding track 42 opposite to the connecting track 45 and pushes the lock cylinder to the combination position. The connecting rod pushing cylinder 47 is located on the other side of the connecting rod feeding track 44 opposite to the connecting track 45 and pushes the connecting rod to the combination position. A combination cylinder 49 is provided on one side of the combination position, and a stop block 40 is provided on the other side. The combination cylinder 49 has the function of pushing the connecting rod in the combination position into the lock cylinder. In the combined state, the positioning gripper 401 is set on the corresponding fixture 7 and has a positioning state for positioning the lock cylinder and connecting rod in the corresponding fixture. The lock cylinder and connecting rod moving mechanism 48 has a moving state for moving the combined connecting rod and lock cylinder to the corresponding fixture 7. The lock cylinder vibrating plate 41 and the connecting rod vibrating plate 43 respectively transport the lock cylinder and connecting rod to the corresponding feeding track. The lock cylinder pushing cylinder 46 pushes the lock cylinder to the combined position of the connecting track 45. The connecting rod pushing cylinder 47 pushes the connecting rod to the same combined position. The combination cylinder 49... The connecting rod is pushed into the lock cylinder to complete the assembly. The stop block 40 limits the parts. Then, the lock cylinder and connecting rod moving mechanism 48 moves the assembled lock cylinder and connecting rod to the clamp 7 to complete the assembly with the lock shell and dial wheel. This realizes the automatic synchronous assembly of the lock cylinder and connecting rod, replacing manual assembly and solving the problem of inconsistent connection in manual assembly. The limiting of the assembly position and the precise pushing of the pushing cylinder 67 ensure the assembly accuracy of the lock cylinder and connecting rod, improve assembly efficiency and finished product qualification rate, and ensure the continuity of the entire assembly process.

[0045] The handle feeding device 5 includes a handle drive belt 51, a first handle mover 52, a second handle mover 53, a rotator 54, a transfer table 55, and a blower mechanism 56. The first handle mover 52 is in a transfer state that moves the handle located at the end of the handle drive belt 51 to the transfer table 55. The rotator 54 drives the transfer table 55 to rotate. The blower mechanism 56 is opposite to the transfer table 55 and is in an installation state that blows a spring into the handle. The second handle mover 53 is in a feeding state that moves the handle located on the transfer table 55 to the corresponding clamp 7. The handle is fed through the handle drive belt. The handle is conveyed to the end via conveyor 51. The first handle mover 52 moves the handle to the transfer table 55. The rotary mechanism 54 drives the transfer table 55 to rotate and adjust the handle's posture. The blower mechanism 56 blows the spring into the handle on the transfer table 55. The rotary mechanism 54 then rotates the handle back. Subsequently, the second handle mover 53 moves the handle to the fixture 7 to complete the assembly. This achieves automatic handling conveying, posture adjustment, and cleaning, avoiding the tediousness and deviation of manual posture adjustment. The blower mechanism 56 can insert the spring. The setting of the transfer table 55 ensures smooth connection between handle feeding and assembly, improving assembly efficiency.

[0046] The snap ring feeding device 6 includes a snap ring vibratory plate 61, a snap ring feeding track 62, a vertical block 63, a vertical cylinder 64, and a closing cylinder 65. The snap ring vibratory plate 61 is connected to the snap ring feeding track 62. A stop block 66 is provided at the end of the snap ring feeding track 62. A passage 661 for the snap ring to pass through vertically is provided between the stop block 66 and the snap ring feeding track 62. The vertical cylinder 64 drives the vertical block 63 to move vertically, and the vertical block 63 is located at the top of the passage 661. The stop block 66 has a magnetic attraction state to hold the snap ring. Below the passage 661 is an installation position for placing a clamp 7. The closing cylinder 65 is provided on both sides of the installation position and is used to close and fix the snap ring. The snap ring vibratory feeder 61 delivers the snap ring to the snap ring feeding track 62. The snap ring moves along the track to the end, and the passage 661 between the stop block 40 and the track allows the snap ring to pass vertically. The vertical cylinder 64 drives the vertical block 63 to move, controlling the snap ring to fall. After the snap ring falls onto the clamp 7 at the installation position, the closing cylinder 65 closes and fixes the snap ring, completing the assembly. This achieves automatic feeding and closing and fixing of the snap ring, replacing the tedious operation of manual snap ring installation and avoiding the problem of insecure manual closing. The vertical block 63 can precisely control the timing of the snap ring's fall, and the closing cylinder 65 ensures that the snap ring is reliably fixed, preventing the snap ring from falling off during the use of the lock cylinder and improving the structural stability of the lock cylinder.

[0047] The snap ring feeding device 6 also includes a push cylinder 67, a movable seat 671, a rotary motor 672, a handle gripper cylinder 673, a moving track 674, and a push rod 675. The push cylinder 67 drives the movable seat 671 to move to the installation position. The rotary motor 672 is mounted on the movable seat 671 and drives the handle gripper cylinder 673 to rotate. The handle gripper cylinder 673 has a clamping state for clamping the handle on the clamp 7. The moving track 674 is parallel to the snap ring feeding track 62 and opposite to the installation position. The movable seat 671 is slidably mounted on the moving track 674. One end of the push rod 675 is fixed to the movable seat 671, and the other end is linked with the push cylinder 67 to form the push cylinder 675. The 7-pair moving base 671 is driven during snap ring assembly. The push cylinder 67 drives the moving base 671 to move along the moving track 674 to the installation position via the push rod 675. The rotary motor 672 drives the handle gripper cylinder 673 to rotate. The handle gripper cylinder 673 clamps the handle on the fixture 7 and adjusts its posture to match the snap ring assembly angle, ensuring accurate snap ring installation. By adjusting the handle posture, the assembly alignment of the snap ring with the handle and lock cylinder can be ensured, solving the problem of snap ring assembly difficulties and insecure fixing caused by handle posture deviation. The cooperation between the moving base 671 and the moving track 674 ensures smooth adjustment, and the gripper cylinder clamps reliably, avoiding damage to the handle and further improving assembly accuracy and stability.

[0048] The snap ring feeding device 6 also includes a snap ring frame 68, a vertical cylinder 64 mounted on the snap ring frame 68, and a stop block 66 mounted on the snap ring frame 68. The top of the stop block 66 extends towards the snap ring feeding track 62, and a snap ring extension 681 is provided. The snap ring extension 681 has a guide opening 682 for the vertical block 63 to pass through. The snap ring frame 68 provides mounting support for the vertical cylinder 64 and the stop block 40. The snap ring extension 681 of the stop block 66 extends towards the snap ring feeding track 62 to feed the snap rings within the track. The vertical block 63 is used for auxiliary limiting. It passes through the guide port 682 of the snap ring extension 681 and moves vertically along the guide port 682 to control the snap ring to fall. The snap ring frame 68 improves the stability of the installation of each component and avoids the impact of component shaking on accuracy during assembly. The snap ring extension 681 can prevent the snap ring from deviating or falling off at the end of the feeding track. The guide port 682 can guide the movement of the vertical block 63 to ensure that the vertical block 63 moves accurately, further ensuring the accurate falling position of the snap ring and improving the feeding and assembly accuracy of the snap ring.

[0049] Working process: The circular conveyor 1 drives the clamp 7 to move cyclically, sequentially transferring the clamp 7 to the lock case feeding device 2, the dial wheel feeding device 3, the lock cylinder and connecting rod feeding device 4, the handle feeding device 5, and the snap ring feeding device 6. The lock case feeding device 2 first feeds the lock case into the clamp 7. The base 71 of the clamp 7 is provided with a receiving groove 714 and a fixed groove 715. The moving block 72 is slidably set in the fixed groove 715. The moving spring 73 drives the moving block 72 towards the receiving groove 714. The movement mechanism moves the lock housing to fix it in place. The subsequent gear wheel feeding device 3 transports the gear wheel via the gear wheel vibrating plate 31 and the feeding track to the locking block 33 for positioning. Then, the gear wheel moving mechanism 34 moves it to the fixture 7 for assembly with the lock housing. The lock cylinder and connecting rod feeding device 4 transports the corresponding parts to the track via the lock cylinder vibrating plate 41 and the connecting rod vibrating plate 43. After being pushed to the assembly position by the push cylinder 67 and completing the assembly, the moving mechanism moves it to the fixture 7 for assembly with the lock housing and gear wheel. The handle feeding device 5 transports the handle via the transmission belt... The spring is sent to the end and moved to the transfer table 55 by the first mover. The spring is then adjusted by the rotator 54 and installed by the blower mechanism 56. It is then moved to the fixture 7 by the second mover for assembly. The spring feeding device 6 transports the spring to the end via the vibratory plate and the track. The vertical cylinder 64 drives the vertical block 63 to control the spring to fall to the installation position through the through port 661. The closing cylinder 65 closes and fixes the spring. When the spring is assembled, the push cylinder 67 drives the moving seat 671 to move along the moving track 674. The rotary motor 672 drives the handle gripper cylinder 673 to hold the handle and adjust its posture to fit the assembly. When unlocking, the unlocking rod 741 slides along the slide 716 and drives the moving block 72 away from the receiving groove 714 through the unlocking inclined surface 742 to release the fixation. When assembling, the unlocking rod 741 resets and the moving block 72 resets and fixes the part under the action of the moving spring 73. After assembly, the fixture 7 returns to the initial position with the ring conveyor 1. The unlocking mechanism 74 drives the moving block 72 to reset to remove the finished product.

Claims

1. An automatic assembly device for lock cylinders, characterized in that: It includes a ring conveyor (1) and a lock housing feeding device (2), a dial feeding device (3), a lock core and connecting rod feeding device (4), a handle feeding device (5) and a snap ring feeding device (6) arranged sequentially along the ring conveyor (1). Circular conveyor (1): includes a clamp (7), which sequentially transmits the clamp (7) to the lock housing feeding device (2), the dial feeding device (3), the lock core and connecting rod feeding device (4), the handle feeding device (5) and the snap ring feeding device (6), and then returns to the initial position; Lock case feeding device (2): feeds the lock case to the corresponding clamp (7); Dial wheel feeding device (3): feeds the dial wheel to the corresponding clamp (7) and assembles it with the lock housing; Lock cylinder and connecting rod feeding device (4): feeds the lock cylinder and connecting rod and assembles them with the lock case and dial wheel; Handle feeding device (5): feeds the handle to the corresponding fixture (7) and assembles it; Snap ring feeding device (6): feeds the snap ring to the corresponding fixture (7) and assembles it; The clamp (7) includes a base (71), a moving block (72), a moving spring (73), and an unlocking mechanism (74). The base (71) is provided with a receiving groove (714) for placing the lock shell and the dial wheel. The base (71) is also provided with a fixing groove (715). The fixing groove (715) is horizontal and perpendicular to the receiving groove (714) and extends to communicate with the receiving groove (714). The moving block (72) is slidably disposed in the fixing groove (715). The moving spring (73) is disposed on the moving block (72) and drives the moving block (72) to move towards the direction of the receiving groove (714). The moving block (72) and the moving spring (73) constitute the fixing of the lock shell and the dial wheel on the base (71). The unlocking mechanism (74) is disposed on the base (71) and has an unlocked state that drives the moving block (72) to move away from the receiving groove (714). The moving block (72) also includes an upper moving block (721) and a lower moving block (722), and the moving spring (73) also includes an upper moving spring (731) and a lower moving spring (732). An extension is provided on the lower moving block (722). The upper moving spring (731) and the upper moving block (721) constitute a fixation of the dial wheel, and the lower moving spring (732) and the lower moving block (722) constitute a fixation of the lock housing. The lower moving block (722) is provided with an auxiliary fixing part (724) extending into the dial wheel groove of the lock housing and the auxiliary fixing part (724) is opposite to the dial wheel. The auxiliary fixing part (724) has a linkage unlocking state that drives the upper moving block (21) to unlock. The top of the lower moving block (722) is provided with a sliding groove (725) for the upper moving block (721) to slide.

2. The automatic assembly equipment for a lock cylinder according to claim 1, characterized in that: The unlocking mechanism (74) includes an unlocking rod (741), and a slide (716) is provided on the base (71) for the unlocking rod (741) to slide. The slide (716) is located below the receiving groove (714) and parallel to the receiving groove (714). The slide (716) is connected to the receiving groove (714) and the fixing groove (715). The unlocking rod (741) has an unlocking inclined surface (742). The moving block (72) has an extension that extends to the slide (716) and abuts against the unlocking inclined surface (742). The moving unlocking rod (741) drives the moving block (72).

3. The automatic assembly equipment for a lock cylinder according to claim 1, characterized in that: The base (71) includes a base plate (711), a left block (712), and a right block (713). The left block (712) and the right block (713) are disposed on the base plate (711), and there is a separation space between the left block (712) and the right block (713). An extension plate (717) is provided on the opposite side of the left block (712) and the right block (713). The extension plate (717) divides the separation space into a receiving groove (714) and a slide (716). The extension plate (717) has a middle section. The left block (712) and the right block (713) are provided with notches to form a connection between the receiving groove (714) and the slide (716). The left block (712) and the right block (713) are provided with grooves perpendicular to the separation space and serve as fixing grooves (715). The bottom plate (711) is also provided with fixing posts (75) and the fixing posts (75) are opposite to the fixing grooves (715). The moving spring (73) is provided between the fixing posts (75) and the moving block (72). The tops of the left block (712) and the right block (713) are arc-shaped.

4. The automatic assembly equipment for a lock cylinder according to claim 1, characterized in that: The aforementioned dial feeding device (3) includes a dial vibrating plate (31), a dial feeding track (32), a locking block (33), and a dial moving mechanism (34). The dial vibrating plate (31) is connected to the dial feeding track (32). The locking block (33) is located at the end of the feeding track. The locking block (33) is provided with a locking groove (35) for accommodating the dial. The dial moving mechanism (34) has a moving state that moves the dial located in the locking groove (35) to the corresponding clamp (7).

5. An automatic assembly device for a lock cylinder according to claim 1, characterized in that: The lock cylinder and connecting rod feeding device (4) includes a lock cylinder vibratory feeder (41), a lock cylinder feeding track (42), a connecting rod vibratory feeder (43), a connecting rod feeding track (44), a connecting track (45), a lock cylinder pushing cylinder (46), a connecting rod pushing cylinder (47), a lock cylinder and connecting rod moving mechanism (48), and a positioning gripper (401). The lock cylinder vibratory feeder (41) is connected to the lock cylinder feeding track (42), and the connecting rod vibratory feeder (43) is connected to the connecting rod feeding track (44). The lock cylinder feeding track (42) and the connecting rod feeding track (44) are parallel. The connecting track (45) is located between the end of the lock cylinder feeding track (42) and the end of the connecting rod feeding track (44). The connecting track (45) is provided with a combination position. The lock cylinder push cylinder (46) is located on the other side of the lock cylinder feeding track (42) relative to the connecting track (45) and pushes the lock cylinder to the assembly position. The connecting rod push cylinder (47) is located on the other side of the connecting rod feeding track (44) relative to the connecting track (45) and pushes the connecting rod to the assembly position. A combination cylinder (49) is provided on one side of the assembly position and a stop block (40) is provided on the other side. The combination cylinder (49) has the assembly state of pushing the connecting rod in the assembly position into the lock cylinder. The lock cylinder and connecting rod moving mechanism (48) has the moving state of moving the assembled connecting rod and lock cylinder to the corresponding fixture (7). The positioning gripper (401) is set on the corresponding fixture (7) and has the positioning state of positioning the lock cylinder and connecting rod in the corresponding fixture.

6. An automatic assembly device for a lock cylinder according to claim 1, characterized in that: The handle feeding device (5) includes a handle drive belt (51), a first handle mover (52), a second handle mover (53), a rotator (54), a transfer table (55), and a blower mechanism (56). The first handle mover (52) has a transfer state that moves the handle located at the end of the handle drive belt (51) to the transfer table (55). The rotator (54) drives the transfer table (55) to rotate. The blower mechanism (56) is opposite to the transfer table (55) and has an installation state that blows the spring into the handle. The second handle mover (53) has a feeding state that moves the handle located on the transfer table (55) to the corresponding clamp (7).

7. An automatic assembly device for a lock cylinder according to claim 1, characterized in that: The snap ring feeding device (6) includes a snap ring vibrating plate (61), a snap ring feeding track (62), a vertical block (63), a vertical cylinder (64), and a closing cylinder (65). The snap ring vibrating plate (61) is connected to the snap ring feeding track (62). A stop block (66) is provided at the end of the snap ring feeding track (62). A passage (661) for the snap ring to pass through vertically is provided between the stop block (66) and the snap ring feeding track (62). The vertical cylinder (64) drives the vertical block (63) to move vertically and the vertical block (63) is located at the top of the passage (661). There is an installation position for placing the clamp (7) below the passage (661). The closing cylinder (65) is set on both sides of the installation position and is used to close and fix the snap ring. The stop block (66) has a magnetic attraction state that attracts the snap ring.

8. An automatic assembly device for a lock cylinder according to claim 7, characterized in that: The snap ring feeding device (6) also includes a push cylinder (67), a movable seat (671), a rotary motor (672), a handle gripper cylinder (673), a moving track (674), and a push rod (675). The push cylinder (67) drives the movable seat (671) to move to the installation position. The rotary motor (672) is mounted on the movable seat (671) and drives the handle gripper cylinder (673) to rotate. The handle gripper cylinder (673) has a gripping state for gripping the handle on the clamp (7). The moving track (674) is parallel to the snap ring feeding track (62) and opposite to the installation position. The movable seat (671) is slidably mounted on the moving track (674). One end of the push rod (675) is fixed to the movable seat (671), and the other end is linked with the push cylinder (67) to form the drive of the push cylinder (677) on the movable seat (671).

9. An automatic assembly device for a lock cylinder according to claim 7, characterized in that: The aforementioned snap ring feeding device (6) also includes a snap ring frame (68), a vertical cylinder (64) is mounted on the snap ring frame (68), a stop block (66) is mounted on the snap ring frame (68), and a snap ring extension (681) is provided on the top of the stop block (66) extending toward the location of the snap ring feeding track (62). The snap ring extension (681) is provided with a guide opening (682) for the vertical block (63) to pass through.