Plastic product special-shaped buckle assembly module

Abstract

The utility model relates to advanced manufacturing and automation equipment technical field, and disclose a kind of plastic product special-shaped buckle assembly module, including product loading pedestal, pressing mechanism, upper cover guide block, side guide block, special-shaped buckle inner strutting block, push buckle plate mechanism, limit seat, thrust dynamometer, first pneumatic actuator, second pneumatic actuator and material blocking follow-up block, and pressing mechanism includes pressing mechanism base and pressing mechanism head, and product loading pedestal assembly station both sides are detachably installed with upper cover guide block and side guide block, and they are enclosed to form guide channel, and guide channel export end is matched with product assembly site;The utility model is through flared inlet design and low friction coating working surface, realize special-shaped buckle and product surface no contact assembly, avoid scratch defect;While integrated thrust real-time monitoring and data transmission function, can accurately control assembly quality.

Description

Technical Field

[0001] This utility model relates to the field of advanced manufacturing and automation equipment technology, specifically to a plastic product irregular buckle assembly module. Background Technology

[0002] In the plastic product manufacturing industry, shaped fasteners are key connecting components, and their assembly quality directly affects the overall performance and appearance of the product. Early assembly of shaped fasteners relied entirely on manual labor. Operators used hand tools to press the fasteners into the product assembly position, which was not only labor-intensive but also prone to deformation and scratches on the product surface due to uneven force. The pass rate was only about 85%, which could not meet the needs of large-scale production. With the development of automation technology, semi-automatic assembly equipment emerged, using cylinders to push the pressure head to press the fasteners in place. However, this equipment lacked a dedicated guiding structure, making the fasteners prone to misalignment. The positioning error often exceeded 0.1mm, and the direct friction between the fastener and the product surface during assembly still posed a risk of scratches.

[0003] Existing technology suffers from three major flaws: First, the guide structure is either missing or simplistic, leading to easy jamming and misalignment during the assembly of irregularly shaped buckles, with a single-station assembly cycle of up to 30 seconds, resulting in low efficiency. Second, the lack of protective design means the buckle body is in direct contact with the product surface, resulting in a high rate of appearance defects and failing to meet the demands of high-end products. Third, the low degree of modularity requires a complete adjustment of the mechanical structure when changing to adapt to different product specifications, with changeover time exceeding 60 minutes, indicating poor versatility. These problems make it difficult for existing equipment to balance efficiency, quality, and versatility, hindering industry development. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a plastic product irregular buckle assembly module, which has the advantages of realizing non-contact, high-precision, and quick-change automated assembly of irregular buckles, and solves the problems of product scratching, low positioning accuracy, and difficulty in changing shapes in existing equipment.

[0005] To achieve the aforementioned goal of automated assembly of non-contact, high-precision, and quick-change irregular-shaped buckles, this utility model provides the following technical solution: a plastic product irregular-shaped buckle assembly module, including a product placement base, a pressing mechanism, an upper cover guide block, a side guide block, an irregular-shaped buckle inner support block, a push-button mechanism, a limit seat, a thrust gauge, a first pneumatic actuator, a second pneumatic actuator, and a material-stopping follower block. The pressing mechanism includes a pressing mechanism base and a pressing mechanism head. The pressing mechanism base is fixed on a bracket above the product placement base. The front end of the pressing mechanism base is movable. The device is dynamically connected to a pressure mechanism head; a top cover guide block and a side guide block are detachably installed on both sides of the product placement base assembly station, forming a guide channel, with the outlet end of the guide channel aligned with the product assembly station; one end of the irregular buckle inner support block is connected to the output end of the second pneumatic actuator, and the other end extends to the inner side of the guide channel inlet end; the limiting seat is fixed to the surface of the base plate, and a limiting block is embedded in the limiting seat; the material blocking follower block is assembled on the side of the irregular buckle inner support block via a guide rail, and an elastic reset component is provided between the material blocking follower block and the irregular buckle inner support block.

[0006] Preferably, the entrance end of the guide channel is provided with a flared structure with a cone angle of 15°-25°, and a special-shaped buckle is sleeved inside the guide channel. The upper cover guide block and the side guide block are assembled to the product placement base by precision positioning pins and locking bolts.

[0007] Preferably, the end of the irregular buckle inner support block is provided with an arc transition structure of R2-R5mm, and the second pneumatic actuator is fixed on the bracket on one side of the product placement base.

[0008] Preferably, the push-button mechanism, the thrust gauge, and the first pneumatic actuator are sequentially connected to form a push-button execution module, which is slidably mounted on the base plate.

[0009] Preferably, the limiting seat is provided with a U-shaped limiting groove, the limiting block slides along the U-shaped limiting groove, and the length of the U-shaped limiting groove is adapted to the assembly stroke of the irregular buckle.

[0010] Preferably, the top of the material-stopping follower block is provided with a wedge-shaped guide surface of 30°-45°, and the elastic reset component is a compression spring, with both ends of the compression spring connected to the bottom of the material-stopping follower block and the side of the irregular buckle inner support block, respectively.

[0011] Preferably, a shaped buckle sensor is embedded in the side wall of the inlet end of the upper cover guide block, and the sensing surface of the shaped buckle sensor is flush with the inner wall of the guide channel.

[0012] Preferably, the base of the pressing mechanism is provided with a pressure regulating component, which includes a pressure reducing valve and a pressure sensor, and the pressure sensor is connected to the pressing mechanism head.

[0013] Preferably, the push-button mechanism has an arc-shaped groove at the push-button end that adapts to the outer wall of the irregular buckle; the front end of the thrust gauge is fixedly connected to the push-button mechanism, and the rear end is connected to the output shaft of the first pneumatic actuator; the base plate is provided with a guide rail, and the push-button actuator module is slidably connected to the base plate through the guide rail.

[0014] Preferably, the base plate is provided with leveling feet, which are distributed along the four corners of the base plate and are threadedly connected to the base plate.

[0015] Compared with the prior art, this utility model provides a plastic product irregular buckle assembly module, which has the following beneficial effects: 1. This plastic product irregular-shaped buckle assembly module uses a dedicated guide channel formed by the upper cover guide block and side guide blocks. Combined with the pre-opening design of the irregular-shaped buckle's inner support block, it achieves contactless assembly between the irregular-shaped buckle and the product surface, completely avoiding scratches and significantly improving the product's appearance qualification rate, thus solving the problem of high appearance defect rates in existing equipment. Simultaneously, the flared structure at the guide channel entrance and the arc-shaped transition of the inner support block ensure the rapid and smooth introduction of the irregular-shaped buckle, controlling the positioning error within 0.02mm, increasing assembly efficiency by 100%, and shortening the single-station cycle time to less than 2 seconds.

[0016] 2. The plastic product's irregular buckle assembly module adopts a modular and detachable design. The top cover guide block, side guide block, and irregular buckle inner support block can be quickly replaced through positioning pins and bolts, reducing the changeover time to less than 15 minutes. It is compatible with irregular buckles of different specifications from 5-20mm. The push-button execution module, together with the quantitative limit block, precisely controls the assembly stroke with an error of ±0.03mm. Combined with the real-time monitoring of the thrust force gauge, abnormal force values ​​can be detected in time, preventing unqualified products from flowing out and solving the defects of existing equipment in terms of difficult changeover and weak quality control. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of part of the structure of this utility model; Figure 3 This is a front view of the product carrier base structure of this utility model; Figure 4 This is a top view of the product carrier base structure of this utility model; Figure 5 This is a schematic diagram of the pressure regulating component of this utility model.

[0018] In the diagram: 1. First pneumatic actuator; 2. Base plate; 3. Limit seat; 4. Limit block; 5. Thrust gauge; 6. Push-button mechanism; 7. Irregular buckle inner support block; 8. Second pneumatic actuator; 9. Product placement base; 10. Pressing mechanism head; 11. Pressing mechanism base; 12. Side guide block; 13. Irregular buckle; 14. Top cover guide block; 15. Irregular buckle sensor; 16. Material blocking follower block; 17. Leveling support; 18. Pressure sensor; 19. Pressure regulating assembly; 20. Pressure reducing valve; 21. Guide channel; 22. Wedge-shaped guide surface; 23. Compression spring; 24. Guide rail; 25. U-shaped limit groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1 and Figure 2As shown, a plastic product shaped buckle 13 assembly module includes a product placement base 9, a pressing mechanism, an upper cover guide block 14, a side guide block 12, a shaped buckle inner support block 7, a push-button mechanism 6, a limiting seat 3, a thrust gauge 5, a first pneumatic actuator 1, a second pneumatic actuator 8, and a material-stopping follower block 16. The pressing mechanism includes a pressing mechanism base 11 and a pressing mechanism head 10. The pressing mechanism base 11 is fixed on a bracket above the product placement base 9, and the pressing mechanism head 10 is movably connected to the front end of the pressing mechanism base 11. The upper cover guide block 14 and the side guide block 12 are detachably installed on both sides of the product placement base 9 assembly station, forming a guide channel 21. The outlet end of the guide channel 21 is aligned with the product assembly station. One end of the shaped buckle inner support block 7 is connected to the output end of the second pneumatic actuator 8, and the other end extends to the inner side of the inlet end of the guide channel 21. The limiting seat 3 is fixed to the base plate. 2. On the surface, a limiting block 4 is embedded in the limiting seat 3; the material blocking follower block 16 is assembled on the side of the irregular buckle inner support block 7 via the guide rail 24, and an elastic reset component is provided between the material blocking follower block 16 and the irregular buckle inner support block 7; the product placement base 9 is made of aluminum alloy, and the surface is anodized, with a flatness error ≤0.01mm / m to ensure stable product positioning; a gate-shaped bracket is provided above the product placement base 9, and the top of the bracket is bolted to fix the pressure mechanism base 11. The front end of the pressure mechanism base 11 is movably assembled with the pressure mechanism head 10 via the linear guide rail 24. The pressure mechanism head 10 can move up and down in the vertical direction, and its pressing surface is covered with a silicone rubber buffer layer to avoid damage to the product during pressing; on the left and right sides of the assembly station of the product placement base 9, the top cover guide block 14 and the side guide block 12 are detachably installed via precision positioning pins and locking bolts, and the two enclose to form a guide channel 21 that adapts to the contour of the irregular buckle 13.

[0021] like Figure 3 and Figure 4 As shown, the entrance end of the guide channel 21 is provided with a flared structure with a 20° cone angle. The guide channel 21 is fitted with a special-shaped buckle 13. The upper cover guide block 14 and the side guide block 12 are assembled to the product placement base 9 by precision positioning pins and locking bolts. The entrance end of the channel is processed into a flared structure with a 20° cone angle to facilitate the introduction of the special-shaped buckle 13. The exit end is precisely aligned with the product assembly position with a positioning error ≤0.02mm.

[0022] like Figure 1 and Figure 2As shown, in one embodiment of this utility model, the end of the irregular buckle inner support block 7 is provided with an arc transition structure of R2-R5mm, and the second pneumatic actuator 8 is fixed on the bracket on one side of the product placement base 9; the irregular buckle inner support block 7 is located inside the inlet end of the guide channel 21, and its end is processed into an arc transition structure of R3mm to avoid scratching the inner wall of the irregular buckle 13; one end of the inner support block is connected to the output end of the second pneumatic actuator 88 through a quick-change connector, and the second pneumatic actuator 8 is bolted to the bracket on one side of the product placement base 9, which can drive the inner support block to move in the horizontal direction. The stroke is controlled within the range of 0-60mm by a solenoid valve to adapt to the opening requirements of different specifications of irregular buckles 13.

[0023] like Figure 1 and Figure 2 As shown, the push-button mechanism 6, the thrust gauge 5, and the first pneumatic actuator 1 are sequentially connected to form a push-button execution module, which is slidably mounted on the base plate 2. The push-button end of the push-button mechanism 6 is provided with an arc-shaped groove that fits the outer wall of the irregular buckle 13. The front end of the thrust gauge 5 is fixedly connected to the push-button mechanism 6, and the rear end is connected to the output shaft of the first pneumatic actuator 1. The base plate 2 is provided with a guide rail 24, and the push-button execution module is slidably connected to the base plate 2 through the guide rail 24. The push-button execution module consists of the push-button mechanism 6, the thrust gauge 5, and the first pneumatic actuator 1. The push-button end of the push-button mechanism 6 is machined into an arc shape that fits the outer wall of the irregular buckle 13. The groove increases the contact area and prevents deformation of the irregular buckle 13; the thrust gauge 5 is an S-type tension sensor, with its front end connected to the push-button mechanism 6 by bolts through a flange, and its rear end fixedly connected to the output shaft of the first pneumatic actuator 1 by a coupling, which can collect the assembly force value in real time; the first pneumatic actuator 1 is bolted to a high-flat base plate, on which a high-rigidity linear guide rail 24 is installed. The flatness error of the base plate is ≤0.01mm / m, and the guide rail 24 is a linear guide rail 24 with a repeatability accuracy of ≤0.005mm. The push-button execution module is slidably connected to the guide rail 24 through a slider to ensure smooth and accurate push-button action.

[0024] like Figure 2 As shown, the limiting seat 3 is provided with a U-shaped limiting groove 25, and the limiting block 4 slides along the U-shaped limiting groove 25. The length of the U-shaped limiting groove 25 is adapted to the assembly stroke of the irregular buckle 13. The limiting seat 3 is bolted to the surface of the substrate. Its structure is a U-shaped limiting groove 25. The inner wall of the groove is hardened and the hardness is HRC55-60. The limiting block 4 is bolted on the push-button execution module. The limiting block 4 is embedded in the U-shaped groove and slides along the groove. The length of the U-shaped groove is adapted to the assembly stroke of the irregular buckle 13, which can realize the bidirectional stroke limitation of the push-button module with a stroke error of ±0.03mm.

[0025] like Figure 2As shown, the top of the retaining follower block 16 is provided with a wedge-shaped guide surface 22 of 30°-45°, and the elastic reset component is a compression spring 23. The two ends of the compression spring 23 are respectively connected to the bottom of the retaining follower block 16 and the side of the inner support block 7 of the irregular buckle. The retaining follower block 16 is assembled on the side of the inner support block 7 of the irregular buckle through the sliding guide rail 24. The top of the follower block is machined into a wedge-shaped guide surface 22 of 35°, and the bottom is connected to the inner support block with a stainless steel compression spring 23. The elastic coefficient of the compression spring 23 is 6N / mm. The spring can drive the follower block to automatically reset. When the push buckle plate mechanism 6 moves forward, it can push the follower block to rise through the wedge surface, releasing the movement channel of the irregular buckle 13.

[0026] like Figure 1 and Figure 2 As shown, a non-standard buckle sensor 15 is embedded in the side wall of the inlet end of the upper cover guide block 14, and the sensing surface of the non-standard buckle sensor 15 is flush with the inner wall of the guide channel 21; a diffuse reflection non-standard buckle sensor is embedded in the side wall of the inlet end of the upper cover guide block 14, and the sensing surface is flush with the inner wall of the channel to avoid interfering with the movement of the non-standard buckle 13, and to detect whether the non-standard buckle 13 is in place.

[0027] like Figure 5 As shown, a pressure regulating component 19 is provided on the base 11 of the pressing mechanism. The pressure regulating component 19 includes a pressure reducing valve 20 and a pressure sensor 18. The pressure sensor 18 is connected to the pressing mechanism head 10. The pressure reducing valve 20 and the pressure sensor 18 are also installed on the base 11 of the pressing mechanism. The pressure sensor 18 is connected to the pressing mechanism head 10 and can monitor the pressing pressure in real time. The pressure can be regulated within the range of 0.1-0.5MPa by the pressure reducing valve 20 to adapt to plastic products with different hardness.

[0028] like Figure 1 As shown, the base plate 2 is equipped with leveling feet 17, which are distributed along the four corners of the base plate 2 and are threadedly connected to the base plate 2. The leveling feet 17 are threadedly connected to the base plate 2, so that the height of each foot can be adjusted independently. The operator can adjust the level of the base plate 2 according to actual needs to ensure that the equipment can remain stable and level even on uneven ground.

[0029] Working principle: Replace the appropriate top cover guide block 14, side guide block 12, and inner support block 7 according to the specifications of the irregular buckle 13, and set the pressing pressure, push stroke, and force warning threshold; the irregular buckle 13 is conveyed to the entrance of the guide channel 21 by the feeding mechanism. After the irregular buckle sensor 15 detects the irregular buckle 13, the second pneumatic actuator 8 drives the inner support block to move, opening the opening of the irregular buckle 13; the external robotic arm places the plastic product on the product placement base 9, and the pressing mechanism head 10 moves downward to apply the preset pressure to fix the product; the first pneumatic actuator... 1. The push-button actuator module moves forward, and the push-button plate mechanism 6 pushes the irregular buckle 13 along the guide channel 21. The material stop follower block 16 is squeezed and lifted, and the irregular buckle 13 enters the product assembly position without contact. The thrust force gauge 5 collects force data in real time and transmits it to the terminal control system. If the force value is abnormal, the machine will stop and alarm. After the assembly is completed, the first pneumatic actuator 1 drives the push-button module to reset, the material stop follower block 16 is spring-reset, the second pneumatic actuator 8 drives the inner support block to reset, the pressing mechanism head 10 is lifted, the robotic arm takes away the product, and enters the next cycle.

[0030] In summary, the plastic product irregular buckle 13 assembly module, through the upper cover guide block 14 and the side guide block 12 forming a dedicated guide channel 21, combined with the pre-opening design of the irregular buckle inner support block 7, achieves non-contact assembly between the irregular buckle 13 and the product surface, completely avoiding scratch defects, greatly improving the product appearance qualification rate, and solving the problem of high appearance defect rate of existing equipment. Meanwhile, the flared structure at the entrance of the guide channel 21 and the arc-shaped transition of the inner support block ensure the rapid and smooth introduction of the irregular buckle 13, with the positioning error controlled within 0.02mm, improving assembly efficiency by 100% and shortening the single-station cycle to within 2 seconds; adopting a modular and detachable design, the upper cover guide block 14, side guide block 12 and irregular buckle inner support block 7 can be quickly replaced by positioning pins and bolts, shortening the changeover time to within 15 minutes, and adapting to irregular buckles 13 of different specifications from 5-20mm; the push buckle execution module, together with the quantitative limit block 4, precisely controls the assembly stroke with an error of ±0.03mm. Combined with the real-time monitoring of the thrust force gauge 5, abnormal force values ​​can be detected in time, preventing unqualified products from flowing out, and solving the defects of existing equipment in terms of difficult changeover and weak quality control.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic product irregular buckle assembly module, comprising a product placement base (9), a pressing mechanism, an upper cover guide block (14), a side guide block (12), an irregular buckle inner support block (7), a push-button plate mechanism (6), a limiting seat (3), a thrust gauge (5), a first pneumatic actuator (1), a second pneumatic actuator (8), and a stop follower block (16), characterized in that: The pressing mechanism includes a pressing mechanism base (11) and a pressing mechanism head (10). The pressing mechanism base (11) is fixed on a bracket above the product placement base (9). The pressing mechanism head (10) is movably connected to the front end of the pressing mechanism base (11). The product placement base (9) has a top cover guide block (14) and a side guide block (12) detachably installed on both sides of the assembly station. The two blocks enclose a guide channel (21). The guide channel (21) has an outlet end. Align with the product assembly position; one end of the irregular buckle inner support block (7) is connected to the output end of the second pneumatic actuator (8), and the other end extends to the inner side of the inlet end of the guide channel (21); the limiting seat (3) is fixed to the surface of the base plate (2), and the limiting seat (3) is embedded with a limiting block (4); the material blocking follower block (16) is assembled on the side of the irregular buckle inner support block (7) through the guide rail, and an elastic reset component is provided between the material blocking follower block (16) and the irregular buckle inner support block (7).

2. The plastic product irregular buckle assembly module according to claim 1, characterized in that: The guide channel (21) has a flared structure with a cone angle of 15°-25° at the entrance end. The guide channel (21) is fitted with a special buckle (13). The upper cover guide block (14) and the side guide block (12) are assembled on the product placement base (9) by precision positioning pins and locking bolts.

3. The plastic product irregular buckle assembly module according to claim 1, characterized in that: The end of the irregular buckle inner support block (7) is provided with an arc transition structure of R2-R5mm, and the second pneumatic actuator (8) is fixed on the bracket on one side of the product placement base (9).

4. The plastic product irregular buckle assembly module according to claim 1, characterized in that: The push-button mechanism (6), the thrust gauge (5), and the first pneumatic actuator (1) are connected in sequence to form a push-button execution module, which is slidably mounted on the base plate (2).

5. A plastic product irregular-shaped buckle assembly module according to claim 1, characterized in that: The limiting seat (3) is provided with a U-shaped limiting groove (25), and the limiting block (4) slides along the U-shaped limiting groove (25). The length of the U-shaped limiting groove (25) is adapted to the assembly stroke of the irregular buckle (13).

6. The plastic product irregular buckle assembly module according to claim 1, characterized in that: The top of the material stop follower block (16) is provided with a wedge-shaped guide surface (22) of 30°-45°. The elastic reset component is a compression spring (23). The two ends of the compression spring (23) are respectively connected to the bottom of the material stop follower block (16) and the side of the irregular buckle inner support block (7).

7. A plastic product irregular-shaped buckle assembly module according to claim 1, characterized in that: The upper cover guide block (14) has an embedded irregular buckle sensor (15) installed on the side wall of the entrance end, and the sensing surface of the irregular buckle sensor (15) is flush with the inner wall of the guide channel (21).

8. A plastic product irregular-shaped buckle assembly module according to claim 1, characterized in that: The pressure regulating component (19) is provided on the base (11) of the pressing mechanism. The pressure regulating component (19) includes a pressure reducing valve (20) and a pressure sensor (18). The pressure sensor (18) is connected to the head (10) of the pressing mechanism.

9. A plastic product irregular-shaped buckle assembly module according to claim 4, characterized in that: The push-button mechanism (6) has an arc-shaped groove at the push-button end that is adapted to the outer wall of the irregular buckle (13). The front end of the push-button force gauge (5) is fixedly connected to the push-button mechanism (6), and the rear end is connected to the output shaft of the first pneumatic actuator (1). The base plate (2) is provided with a guide rail, and the push-button execution module is slidably connected to the base plate (2) through the guide rail (24).

10. A plastic product irregular-shaped buckle assembly module according to claim 1, characterized in that: The base plate (2) is provided with leveling feet (17), which are distributed along the four corners of the base plate (2) and are threadedly connected to the base plate (2).

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