Bolt and gasket assembling equipment

By designing a bolt and washer assembly equipment, and utilizing a turntable and pressing cylinder structure, the coaxial assembly of washers is achieved, solving the problem of thread breakage caused by washer tilting and improving the bolt production quality.

CN223833913UActive Publication Date: 2026-01-27JIAXING HANXIU HARDWARE MASCH CO LTD
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Patent Information

Application Number
CN202520388283.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-01-27
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

During the assembly of bolts and washers, the washers were not coaxial with the bolts, resulting in uneven pressure. This caused the washers to tilt and squeeze the bolt threads, affecting production quality.

Method used

A bolt and washer assembly device was designed. Utilizing a turntable and pressing cylinder structure, and through the cooperation of an electromagnetic block and a spring, the washer is ensured to be accurately inserted into the bolt body, achieving coaxial assembly.

Benefits of technology

This effectively prevents washer tilting, improves the stability and production quality of bolt assembly, and reduces thread breakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a bolt and gasket assembling device which comprises a supporting frame, a conveying plate is arranged on the supporting frame, and bolt bodies are clamped on the conveying plate in a linear array mode. The supporting block is arranged on the supporting frame, a rotating disc and a gasket discharging unit are arranged on the supporting block, and discharging grooves matched with the gasket discharging unit are symmetrically formed in the rotating disc; and the pressing cylinder is arranged on the supporting block, a reciprocating screw rod is arranged at the axis of the pressing cylinder, a top frame is arranged on the thread part of the reciprocating screw rod, a pressing block is arranged at one end of the top frame, and electromagnetic blocks are symmetrically arranged on the pressing block. According to the bolt and gasket assembling equipment, the gasket is discharged into the discharging groove through the gasket discharging unit, the gasket is clamped into the pressing cylinder through the rotating disc, the gasket is attracted through the electromagnetic block, the gasket is more stable when the top frame pushes the gasket to be clamped into a bolt body, and the phenomenon that the gasket inclines is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of bolt manufacturing technology, and more specifically to a bolt and washer assembly equipment. Background Technology

[0002] Bolts are typically fitted with washers on their heads before leaving the factory to increase the contact area between the bolt and the connected parts, thereby enhancing the stability of the connection. The washers also stabilize the friction coefficient of the supporting surfaces, reducing loosening between the bolt and the connected parts. However, during the assembly process of the bolt and washer, the washer is moved directly above the bolt, and a pressure rod presses the washer into the bolt. In this high-speed assembly process, if the washer is not coaxial with the bolt, it will tilt as it falls, causing the washer to squeeze the bolt and break the threads, thus affecting the bolt's production quality. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies. It aims to solve the problem that during high-speed assembly, if the gasket is not placed coaxially with the bolt, the pressure exerted on the gasket by the pressure rod will be uneven, causing the gasket to tilt when falling. This can lead to the gasket squeezing the bolt and causing the threads to break, thus affecting the production quality of the bolt.

[0004] To achieve the above objectives, this utility model can be implemented through the following technical solution: a bolt and washer assembly device, comprising:

[0005] A support frame, on which a conveyor plate is mounted, and bolt bodies are clamped in a linear array on the conveyor plate;

[0006] A support block is provided on the support frame. The support block is provided with a turntable and a gasket feeding unit. The turntable is symmetrically provided with feeding grooves that cooperate with the gasket feeding unit.

[0007] A pressing cylinder is mounted on the support block. A reciprocating screw is mounted at the axis of the pressing cylinder. A top frame is mounted on the threaded part of the reciprocating screw. A pressing block is mounted on one end of the top frame. Electromagnetic blocks are symmetrically arranged on the pressing block. A feed port that cooperates with the feeding groove is opened on the pressing cylinder.

[0008] In this embodiment of the utility model, inclined blocks are slidably arranged in a circumferential array on the pressing cylinder, a third spring is provided between the inclined blocks and the pressing cylinder, and the inclined blocks are located below the feed inlet.

[0009] In this embodiment of the utility model, the pressing cylinder is provided with symmetrical sliding grooves that cooperate with the top frame.

[0010] In this embodiment of the utility model, a bracket is snapped onto the pressing cylinder, a motor that cooperates with the reciprocating screw is mounted on the bracket, and a first pulley is mounted on the reciprocating screw;

[0011] A linkage rod is provided at the axis of the turntable, and a second pulley is engaged on the linkage rod. A synchronous belt is provided between the first pulley and the second pulley.

[0012] In this embodiment of the invention, the number of teeth on the first pulley is less than the number of teeth on the second pulley.

[0013] In this embodiment of the utility model, the unloading unit includes an unloading frame and a guide block disposed on the unloading frame, and the guide block is provided with an arc-shaped groove;

[0014] A tapered rod is symmetrically arranged on the turntable, and a first spring is provided between the tapered rod and the turntable. The tapered rod slides within the arc-shaped groove.

[0015] In this embodiment of the utility model, cylinders are symmetrically arranged on the turntable, and the output end of the cylinders faces the feeding trough.

[0016] In this embodiment of the utility model, the support block is provided with a base frame that cooperates with the support frame, and the base frame is symmetrically provided with adjustment grooves.

[0017] In this embodiment of the utility model, the support block is provided with an inclined portion, which cooperates with the feed inlet.

[0018] In this embodiment of the utility model, a rotating rod is rotatably mounted on the pressing block, and a slider is symmetrically threaded onto the rotating rod. A second spring is provided inside the slider to push against the electromagnetic block, and a power switch is provided on the slider. The electromagnetic block slides axially to contact the power switch.

[0019] Compared with the prior art, the advantages of this application are: by using a gasket feeding unit, the gasket is fed into the feeding groove, and the turntable inserts the gasket into the pressing cylinder. The electromagnetic block magnetically attracts the gasket, making the top frame push the gasket into the bolt body more smoothly and reducing the phenomenon of gasket tilting. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure;

[0021] Figure 2 This is a schematic diagram of the overall exploded structure of the assembled equipment;

[0022] Figure 3 This is a schematic diagram of the internal structure of the pressing cylinder in partial cross-section;

[0023] Figure 4This is a partially enlarged schematic diagram of the gasket feeding unit.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Support frame; 11. Conveyor plate; 12. Bolt body; 2. Base frame; 21. Adjustment groove; 3. Support block; 31. Inclined part; 4. Turntable; 41. Feed chute; 42. Linkage rod; 43. Conical rod; 44. First spring; 45. Cylinder; 5. Gasket feeding unit; 51. Feeding frame; 52. Guide block; 522. Arc groove; 61. Motor; 62. First pulley; 63. Bracket; 64. Synchronous belt; 65. Second pulley; 7. Pressing cylinder; 71. Feed inlet; 72. Reciprocating screw; 73. Top frame; 74. Slide groove; 75. Pressing block; 751. Rotating rod; 752. Sliding block; 753. Electromagnetic block; 754. Second spring; 76. Third spring; 77. Inclined block. Detailed Implementation

[0026] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0027] like Figure 1-4 As shown, a bolt and washer assembly device includes:

[0028] A support frame 10 is provided with a conveyor plate 11, and bolt bodies 12 are linearly arrayed on the conveyor plate 11.

[0029] Support block 3 is mounted on support frame 10. Support block 3 is equipped with turntable 4 and gasket feeding unit 5. The turntable 4 is symmetrically provided with feeding grooves 41 that cooperate with gasket feeding unit 5.

[0030] The pressing cylinder 7 is mounted on the support block 3. A reciprocating screw 72 is mounted at the axis of the pressing cylinder 7. A top frame 73 is mounted on the threaded part of the reciprocating screw 72. A pressing block 75 is mounted on one end of the top frame 73. Electromagnetic blocks 753 are symmetrically arranged on the pressing block 75. A feed port 71 is provided on the pressing cylinder 7 to cooperate with the feeding groove 41.

[0031] Specifically, the support frame 10 is equipped with a conveyor belt, which engages with the conveyor plate 11. The conveyor plate 11 has grooves arranged in a linear array. During assembly, the bolt body 12 is inserted into the grooves. The conveyor plate 11 can be replaced to accommodate bolt bodies 12 of different sizes. The bolt body 12 is moved into the pressing cylinder 7 by the conveyor plate 11. At the same time, the gasket feeding unit 5 outputs the gasket into the feeding groove 41 of the turntable 4. The turntable 4 rotates to transport the gasket from the feeding port 71 into the pressing cylinder 7. The reciprocating screw 72 rotates to make the top frame 73 slide downward along the axis, so that the electromagnetic block 753 contacts the gasket and presses the gasket into the bolt body 12. Under the action of the thread groove of the reciprocating screw 72, the top frame 73 moves upward to complete the assembly of the bolt body 12 and the gasket.

[0032] As a further embodiment of this utility model, the pressing cylinder 7 is provided with inclined blocks 77 arranged in a circumferential array. A third spring 76 is provided between the inclined blocks 77 and the pressing cylinder 7. The inclined blocks 77 are located below the feed inlet 71. The pressing cylinder 7 is symmetrically provided with sliding grooves 74 that cooperate with the top frame 73. The sliding grooves 74 have a limiting effect. When the reciprocating screw 72 rotates, the top frame 73 will slide along the sliding grooves 74 until it slides to the bottom. Under the action of the thread groove of the reciprocating screw 72, the top frame 73 slides upward. At this time, the rotation direction of the reciprocating screw 72 does not change. At the same time, during the process of the top frame 73 sliding downward along the axial direction, the inclined blocks 77 are pushed by the third spring 76 to contact the shim, thereby adjusting the position of the shim and making the shim better coaxial with the bolt body 12.

[0033] As a further embodiment provided by this utility model, a bracket 63 is snapped onto the pressing cylinder 7, and a motor 61 that cooperates with the reciprocating screw 72 is provided on the bracket 63. A first pulley 62 is provided on the reciprocating screw 72, and a linkage rod 42 is provided at the axis of the turntable 4. A second pulley 65 is snapped onto the linkage rod 42. A synchronous belt 64 is provided between the first pulley 62 and the second pulley 65. The number of teeth on the first pulley 62 is less than the number of teeth on the second pulley 65. The motor 61 is model number MHMF042L1U2M2. The output of the motor 61 causes the first pulley 62 to drive the second pulley 65 to rotate through the synchronous belt 64. Since the number of teeth on the first pulley 62 is less than the number of teeth on the second pulley 65, the turntable 4 decelerates. The reciprocating screw 72 rotates faster. The top frame 73 slides back and forth along the slide groove 74 for one round trip, while the turntable 4 rotates 180°.

[0034] As a further embodiment of this utility model, the unloading unit includes an unloading frame 51 and a guide block 52 disposed on the unloading frame 51. The guide block 52 has an arc-shaped groove 522 and a limiting block is disposed on the inner wall of the guide block 52. A tapered rod 43 is symmetrically disposed on the turntable 4. A first spring 44 is disposed between the tapered rod 43 and the turntable 4. The tapered rod 43 slides in the arc-shaped groove 522. Through the pushing effect of the first spring 44, the tapered rod 43 can always contact the unloading frame 51 when rotating. Under the push of the tapered surface, the tapered rod 43 is in a state of squeezing the first spring 44, so that the tapered rod 43 can better push the pad to slide down from the guide block 52.

[0035] As a further embodiment of this utility model, cylinders 45 are symmetrically arranged on the turntable 4. The output end of the cylinder 45 faces the feed trough 41. When the feed trough 41 of the turntable 4 is about to fit with the feed inlet 71, the cylinder 45 outputs, and its output rod slowly pushes the pad to slide towards the feed inlet 71.

[0036] As a further embodiment of this utility model, the support block 3 is provided with a base frame 2 that cooperates with the support frame 10. The base frame 2 is symmetrically provided with adjustment grooves 21. The support frame 10 is fixed above the bolt body 12 by the base frame 2, and the distance between the support frame 10 and the bolt body 12 can be controlled by adjusting the adjustment grooves 21.

[0037] As a further embodiment of this utility model, the support block 3 is provided with an inclined part 31, which cooperates with the feed port 71. When the pad on the turntable 4 slides into the pressing cylinder 7, the inclined part 31 improves the sliding effect of the pad and reduces the phenomenon of the pad getting stuck at the feed port 71 of the pressing cylinder 7.

[0038] As a further embodiment of this utility model, a rotating rod 751 is rotatably provided on the pressing block 75, and a slider 752 is symmetrically threaded on the rotating rod 751. A second spring 754 is provided inside the slider 752 to push the electromagnetic block 753. A power switch is provided on the slider 752. The electromagnetic block 753 slides axially to contact the power switch. The rotating rod 751 can be rotated to make the two sliders 752 slide relative to each other or towards each other, that is, to adjust the distance between the two sliders 752 to accommodate different sized shims. When the electromagnetic block 753 pushes the shim to slide down and contact the bolt body 12, the electromagnetic block 753 is squeezed and slides upward axially to contact the power switch, thereby de-energizing the electromagnetic block 753 and causing the shim to fall onto the bolt body 12.

[0039] Working principle: First, multiple sets of shims are stacked in the unloading rack 51. The bolt body 12 is transported to the pressing cylinder 7 by the conveyor belt and the conveyor plate 11, that is, coaxial with the pressing cylinder 7. When the motor 61 is started, the first pulley 62 is rotated by the synchronous belt 64 and the second pulley 65 is rotated. The turntable 4 also rotates, causing the tapered rod 43 to slide along the arc groove 522, and the shim slides along the guide block 52 until it falls into the unloading groove 41. The turntable 4 rotates 180° and the cylinder 45 pushes the shim into the pressing cylinder 7. Under the elastic push of the third spring 76, the tilting block 77 will contact the shim. When the top frame 73 pushes the shim to slide down, it plays a role in fine-tuning the position of the shim so that it is better coaxial with the bolt body 12.

[0040] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0041] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A bolt and washer assembly device, characterized in that, include: A support frame, on which a conveyor plate is mounted, and bolt bodies are clamped in a linear array on the conveyor plate; A support block is provided on the support frame. The support block is provided with a turntable and a gasket feeding unit. The turntable is symmetrically provided with feeding grooves that cooperate with the gasket feeding unit. A pressing cylinder is mounted on the support block. A reciprocating screw is mounted at the axis of the pressing cylinder. A top frame is mounted on the threaded part of the reciprocating screw. A pressing block is mounted on one end of the top frame. Electromagnetic blocks are symmetrically arranged on the pressing block. A feed port that cooperates with the feeding groove is opened on the pressing cylinder.

2. The bolt and washer assembly equipment according to claim 1, characterized in that, An inclined block is slidably arranged in a circumferential array on the pressing cylinder, and a third spring is provided between the inclined block and the pressing cylinder. The inclined block is located below the feed port.

3. The bolt and washer assembly equipment according to claim 1, characterized in that, The pressing cylinder is symmetrically provided with sliding grooves that cooperate with the top frame.

4. The bolt and washer assembly equipment according to claim 1, characterized in that, A bracket is snapped onto the pressing cylinder, and a motor that cooperates with the reciprocating screw is mounted on the bracket. A first pulley is mounted on the reciprocating screw. A linkage rod is provided at the axis of the turntable, and a second pulley is engaged on the linkage rod. A synchronous belt is provided between the first pulley and the second pulley.

5. The bolt and washer assembly equipment according to claim 4, characterized in that, The number of teeth on the first pulley is less than the number of teeth on the second pulley.

6. The bolt and washer assembly equipment according to claim 1, characterized in that, The unloading unit includes an unloading frame and a guide block disposed on the unloading frame, and the guide block is provided with an arc-shaped groove; A tapered rod is symmetrically arranged on the turntable, and a first spring is provided between the tapered rod and the turntable. The tapered rod slides within the arc-shaped groove.

7. The bolt and washer assembly equipment according to claim 6, characterized in that, The turntable is symmetrically equipped with cylinders, and the output end of the cylinders faces the feeding trough.

8. The bolt and washer assembly equipment according to claim 1, characterized in that, The support block is provided with a base frame that cooperates with the support frame, and the base frame is provided with symmetrical adjustment grooves.

9. The bolt and washer assembly equipment according to claim 1, characterized in that, The support block is provided with an inclined part, which cooperates with the feed inlet.

10. The bolt and washer assembly equipment according to claim 1, characterized in that, A rotating rod is rotatably mounted on the pressing block, and a slider is symmetrically threaded onto the rotating rod. A second spring is installed inside the slider to push against the electromagnetic block. A power switch is installed on the slider, and the electromagnetic block slides axially to contact the power switch.