Automatic plastic handle press riveting assembly device

Abstract

The utility model provides a kind of plastic handle automatic pressure riveting assembly device of realizing handle efficient assembly.The utility model includes base, the device further includes lower pressing mechanism being arranged on the base, handle limiting seat being located in the lower pressing mechanism side and lock core hole small cover plate alignment moving mechanism being located in the handle limiting seat one end, the lower pressing mechanism includes guide rail mounting bracket assembly and respectively being arranged on the guide rail mounting bracket assembly lock core hole small cover plate pressure assembly and handle lock ring pressure assembly, the handle lock ring pressure assembly includes second drive cylinder, sleeve being set in the output end of the second drive cylinder, positioning guide block being arranged in the sleeve interior and with its sliding fit and vacuum suction head being arranged in the sleeve side and being connected negative pressure source by pipeline, when negative pressure is removed, the positioning guide block falls into preset position.The utility model relates to the technical field of automatic assembly equipment.

Description

Technical Field

[0001] This utility model relates to the field of automated assembly equipment technology, and in particular to an automatic riveting assembly device for plastic handles. Background Technology

[0002] In modern furniture, plastic handles are an essential component. Their assembly usually involves the pressing and fixing of two key parts: the small cover plate of the lock cylinder hole and the locking ring of the handle. The core function of the small cover plate of the lock cylinder hole is not only aesthetics, but more importantly, it plays a role in preventing smoke and fire in the event of a fire, which is of great safety significance. The locking ring of the handle is related to the firmness of the handle installation.

[0003] The existing plastic handle assembly process mainly relies on manual operation. Workers manually assemble, press, and position components such as small cover plates and locking rings. This traditional method has obvious efficiency bottlenecks. Not only is the assembly pace slow and the labor cost high, but the instability of human operation can easily lead to deviations in assembly accuracy, affecting product consistency and quality control. In particular, during the pressing process involving the small cover plate of the lock cylinder hole and the handle locking ring, manual operation often makes it difficult to ensure the accuracy of the positions of both at the same time, further increasing the probability of rework and scrap.

[0004] With the development of automation technology, more and more companies are seeking to replace manual assembly with mechanical assembly to improve efficiency and assembly reliability. However, most existing equipment can only press-fit single parts and cannot meet the needs of multi-part collaborative assembly. In particular, there is a lack of efficient and reliable dedicated equipment in processes that require synchronous positioning and press-fitting. Therefore, there is an urgent need for an automated device that can accurately press-fit the small cover plate of the lock cylinder hole and the handle locking ring to improve overall assembly efficiency, ensure product structural stability, and meet the needs of modern mass production. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides an automatic riveting assembly device for plastic handles, which aims to solve the problems of low efficiency and poor assembly consistency caused by manual assembly in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automatic riveting assembly device for plastic handles, including a base, a pressing mechanism disposed on the base, a handle limiting seat located on one side of the pressing mechanism, and a lock cylinder hole small cover plate alignment and moving mechanism located at one end of the handle limiting seat. The pressing mechanism includes a guide rail mounting bracket assembly and a lock cylinder hole small cover plate pressing assembly and a handle locking ring pressing assembly respectively disposed on the guide rail mounting bracket assembly. The handle locking ring pressing assembly includes a second driving cylinder, a sleeve sleeved at the output end of the second driving cylinder, a positioning guide block disposed inside the sleeve and slidingly engaged therewith, and a vacuum suction head disposed on one side of the sleeve and connected to a negative pressure source through a pipe. When the negative pressure is released, the positioning guide block falls into a preset position, and the second driving cylinder drives the sleeve to press down along the guiding direction to realize the riveting of the handle locking ring. At the same time, the vacuum suction head returns to the negative pressure state, and the positioning guide block returns to the initial suction position inside the sleeve.

[0007] Based on the above structural design, the beneficial effects of this utility model are as follows: Through the integrated pressing mechanism, the device can quickly, continuously, or synchronously complete the riveting assembly of the lock cylinder hole cover plate and the handle locking ring within one tooling cycle, saving labor costs and perfectly meeting the cycle requirements of automated production lines. The cooperation between the lock cylinder hole cover plate alignment and movement mechanism and the handle limit seat provides a precise positioning reference for the cover plate and the handle body. The slide table driven by the transverse drive cylinder can accurately transport the cover plate to the riveting station, and then the pressing head driven by the first drive cylinder completes a stable and vertical pressing action. This process effectively avoids problems such as skewing and buckle damage that are easily caused by manual placement, ensuring that the cover plate is pressed in place and its fireproof and smokeproof sealing performance is reliably achieved, fundamentally eliminating safety hazards. The design of the handle locking ring pressing assembly is a major innovation of this device, with its unique "vacuum" design. The "adsorption head-positioning guide block" collaborative working mechanism uses negative pressure to adsorb the positioning guide block into the sleeve before riveting, avoiding interference with material feeding. During riveting, the positioning guide block falls and automatically inserts into the center positioning hole of the workpiece to be riveted, achieving precise self-centering guidance. This mechanism fundamentally eliminates the radial deviation between the riveting head and the workpiece, ensuring that the force applied during riveting is vertically downward. It effectively prevents problems such as misalignment, instability, or damage to the workpiece caused by the locking ring, resulting in highly consistent and reliable riveting quality. The entire device has a reasonable layout, with each functional module (pressing mechanism, limit seat, alignment mechanism) integrated on the base, resulting in a compact structure and small footprint. The guide rail mounting bracket assembly ensures the smoothness and straightness of the pressing component's downward movement. The entire action process is precisely controlled by pneumatic components and a control system, resulting in high repeatability and good long-term operational stability, making it very suitable for high-volume, high-quality production environments.

[0008] Furthermore, the lock cylinder hole cover plate clamping assembly includes a first driving cylinder and a lock cylinder hole cover plate clamping head disposed at the output end of the first driving cylinder.

[0009] Furthermore, the lock cylinder hole cover plate alignment and movement mechanism includes a transverse drive cylinder and a slide table disposed at the output end of the transverse drive cylinder, the slide table being provided with a limiting groove for placing the lock cylinder hole cover plate.

[0010] Based on the above, the transverse drive cylinder, in conjunction with the slide table, enables the precise transverse movement of the small cover plate of the lock cylinder hole. The limiting groove is used to regulate the placement position of the small cover plate, thereby ensuring that the small cover plate can be accurately aligned with the pressing station, improving the assembly positioning accuracy and automation level, and avoiding riveting failure due to position deviation.

[0011] Furthermore, the handle limiting seat is provided with a sliding engagement part, and the slide table is slidably engaged in the sliding engagement part.

[0012] Based on the above, the sliding mating part is set in the handle limit seat, which helps to accurately guide and constrain the movement path of the slide, ensuring that the slide slides smoothly along the set direction, thereby improving the stability and alignment accuracy of the small cover plate of the lock cylinder hole during the movement process, and further enhancing the reliability and consistency of the riveting operation.

[0013] Furthermore, the positioning guide block includes a first cylindrical section, a tapered transition section, and a pointed cone section arranged sequentially along the axial direction. The outer diameter of the first cylindrical section slides into the inner wall of the sleeve. The tapered transition section abuts against the inner wall of the sleeve to limit the movement stroke of the positioning guide block. The pointed cone section is used to insert into the center positioning hole of the workpiece to be pressed to achieve self-centering guidance.

[0014] Based on the above, the positioning guide block achieves guiding and limiting functions through a segmented structure. The first cylindrical segment slides in the inner wall of the sleeve to ensure the stability of its movement direction. The cooperation between the tapered transition segment and the inner wall of the sleeve can effectively limit the movement stroke and avoid overshoot. The pointed cone segment is inserted into the center hole of the part to be pressed, which plays the role of automatic centering and guiding, thereby improving the riveting alignment accuracy and assembly consistency.

[0015] Furthermore, the base is also provided with a small cover plate clamping control button and a handle locking ring clamping control button. The small cover plate clamping control button is electrically connected to the small cover plate clamping assembly of the lock cylinder hole, and the handle locking ring clamping control button is electrically connected to the handle locking ring clamping assembly.

[0016] Based on the above, the small cover plate clamping control button and the handle locking ring clamping control button set on the base can independently control the corresponding clamping components, realize one-button start of the corresponding riveting action, effectively improve assembly efficiency and operation convenience, while reducing human intervention and improving automation and operation stability.

[0017] Furthermore, the guide rail mounting bracket assembly includes a frame, a vertical linear guide rail disposed on the frame, and a slider slidably engaged with the vertical linear guide rail. The lock cylinder hole small cover plate pressing assembly and the handle locking ring pressing assembly are respectively disposed on the slider.

[0018] Based on the above, the guide rail mounting bracket assembly, through the sliding cooperation between the vertical linear guide rail and the slider set in the frame, enables the lock core hole small cover plate pressing assembly and the handle locking ring pressing assembly to achieve height adjustment in the vertical direction, so as to adapt to the assembly requirements of plastic handles of different specifications, improve the applicability of the device and the adjustment accuracy of the riveting position.

[0019] To more clearly illustrate the above-mentioned features of this utility model and the objectives it aims to achieve, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is a schematic diagram of the handle locking ring clamping assembly; Figure 4 A schematic diagram of the structure of the lock cylinder hole small cover plate clamping assembly; Figure 5 This is a schematic diagram of the alignment and movement mechanism for the small cover plate of the lock cylinder hole; Figure 6 This is a schematic diagram of the positioning guide block. Detailed Implementation

[0021] like Figures 1-6As shown, this utility model is an automatic press-fit assembly device for plastic handles, including a base 1. The device also includes a pressing mechanism 2 disposed on the base 1, a handle limiting seat 3 located on one side of the pressing mechanism 2, and a lock cylinder hole small cover plate alignment and movement mechanism 4 located at one end of the handle limiting seat 3. The pressing mechanism 2 includes a guide rail mounting bracket assembly 20 and a lock cylinder hole small cover plate pressing assembly 21 and a handle locking ring pressing assembly 22 respectively disposed on the guide rail mounting bracket assembly 20. The handle locking ring pressing assembly 22 includes a second drive cylinder 220 and a cylinder sleeved on the second drive cylinder 220. The sleeve 221 at the output end of the drive cylinder 220, the positioning guide block 222 disposed inside the sleeve 221 and slidably engaged therewith, and the vacuum suction head 223 disposed on one side of the sleeve 221 and connected to a negative pressure source via a pipe, when the negative pressure is released, the positioning guide block 222 falls into a preset position, the second drive cylinder 220 drives the sleeve 221 to press down along the guide direction to realize the riveting of the handle locking ring, at the same time, the vacuum suction head 223 returns to the negative pressure state, and the positioning guide block 222 returns to the initial suction position inside the sleeve 221.

[0022] The lock cylinder hole cover plate clamping assembly 21 includes a first driving cylinder 210 and a lock cylinder hole cover plate clamping head 211 disposed at the output end of the first driving cylinder 210.

[0023] The lock cylinder hole cover plate alignment and moving mechanism 4 includes a transverse drive cylinder 40 and a slide 41 disposed at the output end of the transverse drive cylinder 40. The slide 41 is provided with a limiting groove 42 for placing the lock cylinder hole cover plate.

[0024] The handle limiting seat 3 is provided with a sliding engagement part 30, and the slide table 41 is slidably engaged in the sliding engagement part 30.

[0025] The positioning guide block 222 includes a first cylindrical section, a tapered transition section and a pointed cone section arranged sequentially along the axial direction. The outer diameter of the first cylindrical section slides and fits against the inner wall of the sleeve 221. The tapered transition section abuts against the inner wall of the sleeve 221 to limit the movement stroke of the positioning guide block 222. The pointed cone section is used to insert into the center positioning hole of the part to be pressed to achieve self-centering guidance.

[0026] The base 1 is also provided with a small cover plate clamping control button 5 and a handle locking ring clamping control button 6. The small cover plate clamping control button 5 is electrically connected to the small cover plate clamping assembly 21 of the lock cylinder hole, and the handle locking ring clamping control button 6 is electrically connected to the handle locking ring clamping assembly 22.

[0027] The guide rail mounting bracket assembly 20 includes a frame 200, a vertical linear guide rail 201 disposed on the frame 200, and a slider 202 slidably engaged with the vertical linear guide rail 201. The lock cylinder hole small cover plate pressing assembly 21 and the handle locking ring pressing assembly 22 are respectively disposed on the slider 202.

[0028] In summary, the specific embodiments of this utility model are as follows: First, the operator places the small cover plate of the lock cylinder hole into the limiting groove 42 on the slide table for positioning. Then, the handle to be assembled is inserted into the handle limiting seat 3 for limiting and fixing. Subsequently, the operator simultaneously presses the small cover plate clamping control button 5 and the handle locking ring clamping control button 6. The control system starts the lock cylinder hole small cover plate alignment and movement mechanism 4, which drives the horizontal drive cylinder 40 to output action, causing the slide table 41 to slide horizontally and push the small cover plate to the assembly alignment position. At the same time, by controlling the vacuum suction head 223 to release the negative pressure, the suction of the positioning guide block 222 is released, causing the positioning guide block to fall to the assembly positioning position of the handle locking ring.

[0029] At this time, the operator manually places the handle locking ring onto the first cylindrical section of the positioning guide block 222 to achieve initial positioning. Then, the operator presses the control button 5 (small cover plate clamping control button) and the handle locking ring clamping control button 6 again. The first drive cylinder 210 and the second drive cylinder 220 drive the lock cylinder hole small cover plate clamping head 211 and the sleeve 221 to press down synchronously, realizing the riveting assembly operation of the lock cylinder hole small cover plate and the handle locking ring. During the riveting process, the vacuum suction head 223 returns to the negative pressure state, re-adsorbs the positioning guide block 222 and pulls it back to the initial position inside the sleeve 221, preparing for the next round of assembly operations.

[0030] After the entire riveting process is completed, the operator takes out the assembled handle assembly and enters the next assembly cycle. This workflow achieves precise and rapid riveting of the lock cylinder hole cover and the handle locking ring through the coordinated control of the automatic drive component and the limit mechanism, which greatly improves work efficiency and assembly consistency.

[0031] The above description is only the optimal solution embodiment of this utility model and is not intended to limit this utility model. Various modifications or substitutions made by those skilled in the art to this utility model without departing from the essence and protection scope of this utility model should also be within the protection scope of this utility model.

Claims

1. An automatic riveting assembly device for plastic handles, comprising a base (1), characterized in that: The device also includes a pressing mechanism (2) disposed on the base (1), a handle limiting seat (3) located on one side of the pressing mechanism (2), and a lock cylinder hole small cover plate alignment and moving mechanism (4) located at one end of the handle limiting seat (3). The pressing mechanism (2) includes a guide rail mounting bracket assembly (20) and a lock cylinder hole small cover plate pressing assembly (21) and a handle locking ring pressing assembly (22) respectively disposed on the guide rail mounting bracket assembly (20). The handle locking ring pressing assembly (22) includes a second drive cylinder (220) and a sleeve sleeved on the output end of the second drive cylinder (220). The sleeve (221), the positioning guide block (222) disposed inside the sleeve (221) and slidingly engaged therewith, and the vacuum suction head (223) disposed on one side of the sleeve (221) and connected to the negative pressure source through a pipe, when the negative pressure is released, the positioning guide block (222) falls into the preset position, the second driving cylinder (220) drives the sleeve (221) to press down along the guide direction to realize the riveting of the handle locking ring, at the same time, the vacuum suction head (223) returns to the negative pressure state, and the positioning guide block (222) returns to the initial suction position inside the sleeve (221).

2. The automatic riveting assembly device for plastic handles according to claim 1, characterized in that: The lock cylinder hole cover plate clamping assembly (21) includes a first drive cylinder (210) and a lock cylinder hole cover plate clamping head (211) disposed at the output end of the first drive cylinder (210).

3. The automatic riveting assembly device for plastic handles according to claim 1, characterized in that: The lock cylinder hole cover plate alignment and moving mechanism (4) includes a transverse drive cylinder (40) and a slide (41) provided at the output end of the transverse drive cylinder (40). The slide (41) is provided with a limiting groove (42) for placing the lock cylinder hole cover plate.

4. The automatic riveting assembly device for plastic handles according to claim 3, characterized in that: The handle limiting seat (3) is provided with a sliding engagement part (30), and the slide (41) is slidably engaged in the sliding engagement part (30).

5. The automatic riveting assembly device for plastic handles according to claim 1, characterized in that: The positioning guide block (222) includes a first cylindrical section, a tapered transition section and a pointed cone section arranged sequentially along the axial direction. The outer diameter of the first cylindrical section slides in fit with the inner wall of the sleeve (221). The tapered transition section abuts against the inner wall of the sleeve (221) to limit the movement stroke of the positioning guide block (222). The pointed cone section is used to insert into the center positioning hole of the workpiece to be pressed to achieve self-centering guidance.

6. The automatic riveting assembly device for plastic handles according to claim 1, characterized in that: The base (1) is also provided with a small cover plate pressing control button (5) and a handle locking ring pressing control button (6). The small cover plate pressing control button (5) is electrically connected to the small cover plate pressing assembly (21) of the lock cylinder hole, and the handle locking ring pressing control button (6) is electrically connected to the handle locking ring pressing assembly (22).

7. The automatic riveting assembly device for plastic handles according to claim 1, characterized in that: The guide rail mounting bracket assembly (20) includes a frame (200), a vertical linear guide rail (201) disposed on the frame (200), and a slider (202) slidably engaged with the vertical linear guide rail (201). The lock cylinder hole small cover plate pressing assembly (21) and the handle locking ring pressing assembly (22) are respectively disposed on the slider (202).

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