Part positioning mechanism

Abstract

The utility model provides a part positioning mechanism, and belongs to the technical field of part positioning. Comprising a positioning base used for containing a plurality of sets of parts, the positioning base is provided with an alignment assembly used for enabling the sets of parts to be mutually aligned and clamped, the alignment assembly comprises a driving part and a clamping part, the driving part drives the clamping part to reciprocate towards the side where the parts are located, and the multiple sets of parts are aligned and clamped at the same time. According to the part positioning mechanism, quick alignment and clamping operation of multiple sets of parts can be achieved on automatic part feeding equipment, the positioning efficiency is greatly improved, and the overall production efficiency can be improved. The mechanism is high in positioning precision, easy and convenient to operate, high in universality and capable of effectively preventing parts from being damaged, improving the running reliability of equipment and guaranteeing the production efficiency and the product quality.

Description

Technical Field

[0001] This utility model belongs to the technical field of parts positioning, and specifically relates to a parts positioning mechanism. Background Technology

[0002] Currently, the automatic part feeding equipment in the injection molding industry suffers from insufficient precision in part positioning technology, which often leads to unstable production during automated production. As technology advances, injection molds are increasingly multi-cavity, which places higher demands on the positioning mechanism and production efficiency of automatic part feeding equipment.

[0003] Multi-cavity means that the parts need to be in multiple sets, which can lead to insufficient positioning accuracy due to cumulative errors in arrangement, uneven material thickness, and dimensional tolerance issues. This results in unstable material feeding, which poses certain adverse risks to production, such as excessive gaps and positional deviations, which can easily affect the overall performance of the product.

[0004] However, existing traditional positioning mechanisms on the market are complex to operate, consume a lot of time, reduce production efficiency, and have high labor costs; moreover, some positioning mechanisms have poor adaptability and cannot accurately position multiple sets of parts at the same time, or effectively and accurately position the same type of parts of different specifications and sizes.

[0005] Therefore, it is particularly important to design and manufacture a part positioning mechanism that can overcome the above problems. Utility Model Content

[0006] In view of the technical problem that the multi-cavity layout of injection molds in the prior art is easily affected by uneven material thickness and dimensional tolerance, resulting in insufficient positioning accuracy of parts, easy scratching of parts, and further affecting the feeding stability of automatic part feeding equipment, this utility model proposes a part positioning mechanism.

[0007] This utility model proposes a part positioning mechanism, including a positioning base for placing several groups of parts. The positioning base is provided with an alignment component for aligning and clamping the various groups of parts together. The alignment component includes a driving part and a clamping part. The driving part drives the clamping part to reciprocate toward the side where the parts are located, thereby realizing the simultaneous alignment and clamping of several groups of parts.

[0008] This part positioning mechanism enables rapid alignment and clamping of multiple sets of parts on automated part feeding equipment, significantly improving positioning efficiency and contributing to overall production efficiency. The mechanism can process several sets of parts at once, saving considerable time compared to positioning parts one by one. Simultaneously, the design of the drive unit driving the clamping unit ensures more precise positioning, reducing errors that may arise from manual operation and effectively guaranteeing the accuracy of part positioning. This, in turn, ensures the stability of subsequent production processes and reduces product quality issues caused by inaccurate part positioning, such as excessive product gaps or positional misalignment, providing strong support for automated production.

[0009] Preferably, the clamping part includes a gripper, and the gripper and the driving part are configured to be detachably connected.

[0010] By adopting the above technical solutions, it is convenient to replace the grippers according to the parts, improve the versatility of the positioning mechanism, reduce maintenance costs, and improve equipment utilization efficiency.

[0011] More preferably, the clamping part further includes a spring-loaded plunger disposed on the jaws, the position of which corresponds to the position of the part.

[0012] By adopting the above technical solution, the spring-loaded plunger can adapt to the tolerance of the parts by using elastic force when the jaws are clamped, thereby achieving over-positioning, improving positioning accuracy, and avoiding damage to the parts.

[0013] More preferably, the spring-loaded plunger includes a plunger head and a compression spring, with one end of the compression spring connected to the plunger head and the other end fixed to the housing inside the spring-loaded plunger.

[0014] By adopting the above technical solution, the compression spring can provide elastic cushioning, ensuring accurate positioning while adapting to the dimensional tolerances of the parts.

[0015] More preferably, the end of the plunger head closest to the part is configured as a smooth spherical shape.

[0016] By adopting the above technical solution, the smooth spherical plunger head can reduce the contact stress with the parts and avoid scratching the parts.

[0017] Preferably, the positioning base is provided with a tapered positioning pin for longitudinally limiting the part, and the tapered positioning pin is detachably connected to the positioning base.

[0018] By adopting the above technical solution, the tapered locating pin can longitudinally limit the position of the part, ensuring the precise position of the part in this direction and improving the positioning accuracy; the detachable connection makes it convenient to replace the locating pin according to different part specifications, enhancing the versatility of the mechanism.

[0019] More preferably, the end of the tapered positioning pin furthest from the positioning base is tapered.

[0020] By adopting the above technical solution, the tapered locating pin can guide the rapid positioning of parts, adapt to the tolerance of parts, reduce damage to parts, and improve positioning accuracy and efficiency.

[0021] Preferably, the drive unit is configured as a cylinder, a hydraulic cylinder, or a linear motor.

[0022] By adopting the above technical solutions, the power source can be flexibly selected according to different working scenarios and needs. Pneumatic cylinders are low in cost and have a fast response; hydraulic cylinders have a large output force; and linear motors have high precision, thereby meeting diverse positioning requirements.

[0023] A further preferred embodiment includes a limiting portion, which is used to limit the travel distance of the drive portion.

[0024] By adopting the above technical solution, it can be ensured that the drive unit accurately reaches the designated position when it drives the clamping unit. This avoids damage to parts due to excessive stroke or inaccurate positioning due to insufficient stroke, thus improving the reliability and stability of positioning and ensuring production consistency and product quality.

[0025] More preferably, the limiting part is further provided with a limiting member, the end of the limiting member facing the driving part.

[0026] By adopting the above technical solution, the limiting component can directly contact the drive unit, more accurately limiting its range of motion, preventing the drive unit from exceeding its stroke, further improving the accuracy and stability of positioning, and reducing the risk of equipment failure.

[0027] Compared with the prior art, the beneficial results of this utility model are as follows:

[0028] This part positioning mechanism enables rapid alignment and clamping of multiple sets of parts on automated part feeding equipment, significantly improving positioning efficiency and contributing to overall production efficiency. The mechanism can process several sets of parts at once, saving considerable time compared to positioning parts one by one. Simultaneously, the design of the drive unit driving the clamping unit ensures more precise positioning, reducing errors that may arise from manual operation and effectively guaranteeing the accuracy of part positioning. This, in turn, ensures the stability of subsequent production processes and reduces product quality issues caused by inaccurate part positioning, such as excessive product gaps or positional misalignment, providing strong support for automated production. Attached Figure Description

[0029] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of the present invention. Other embodiments and many anticipated advantages of the embodiments will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar parts.

[0030] Figure 1 A schematic diagram of the overall structure of the part positioning mechanism according to an embodiment of the present utility model is shown;

[0031] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle;

[0032] Figure 3 A top view of a part positioning mechanism according to an embodiment of the present utility model is shown;

[0033] Figure 4 for Figure 3 A schematic cross-sectional view along line AA;

[0034] Figure 5 for Figure 4 A magnified structural diagram of part B.

[0035] The meaning of each number in the diagram:

[0036] 1. Positioning base; 2. Alignment assembly; 21. Drive unit; 22. Clamping unit; 3. Grippers; 4. Spring-loaded plunger; 5. Conical positioning pin; 6. Limiting unit. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0038] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] In existing automated injection molding processes, uneven material thickness and dimensional errors often result in parts not being placed in the mold properly, leading to defects in injection molding and mold compression issues. Furthermore, the parts are prone to scratches during positioning, making stable automated production impossible.

[0040] The part positioning mechanism disclosed in this embodiment uses an over-positioning method to solve the problems of uneven material thickness and dimensional error; it uses a tapered positioning pin and a spherical plunger to solve the problem of scratches caused by parts contact; and it has an automatic positioning calibration function to solve the problem of automated production.

[0041] This utility model proposes a part positioning mechanism. Figure 1 A schematic diagram of the overall structure of the part positioning mechanism according to an embodiment of the present utility model is shown, as follows: Figure 1 As shown, the part positioning mechanism includes a positioning base 1 for placing several groups of parts. The positioning base 1 is provided with an alignment component 2 for aligning and clamping the various groups of parts together. The alignment component 2 includes a driving part 21 and a clamping part 22. The driving part 21 drives the clamping part 22 to reciprocate toward the side where the parts are located, so as to realize the simultaneous alignment and clamping of several groups of parts.

[0042] The part positioning mechanism disclosed in this embodiment enables rapid alignment and clamping of multiple sets of parts on an automated part feeding device, significantly improving positioning efficiency and contributing to overall production efficiency. This mechanism can process several sets of parts at once, saving considerable time compared to positioning parts one by one. Simultaneously, the design of the drive unit 21 driving the clamping unit 22 makes the positioning operation more precise, reducing errors that may arise from manual operation and effectively ensuring the accuracy of part positioning. This, in turn, guarantees the stability of subsequent production processes and reduces product quality problems caused by inaccurate part positioning, such as excessive product gaps or positional offsets, providing strong support for automated production.

[0043] In a preferred embodiment, the clamping part 22 includes a gripper 3, which is detachably connected to the drive part 21. The gripper 3 and the drive part 21 are typically connected flexibly and detachably using bolts. This design facilitates the replacement of the gripper 3 according to the parts, improves the versatility of the positioning mechanism, reduces maintenance costs, and increases equipment efficiency.

[0044] Furthermore, refer to Figure 1 and Figure 2 The clamping part 22 also includes a spring-loaded plunger 4 disposed on the jaws 3, the position of which corresponds to the position of the part. When the jaws 3 clamp, the spring-loaded plunger 4 can adapt to the tolerance of the part by using elastic force to achieve over-positioning, improve positioning accuracy, and avoid damage to the part.

[0045] The spring-loaded plunger 4, also known as a spring plunger, mainly consists of a housing as the main structure, a plunger head 41 as the actuating component, an elastic assembly composed of a spring and a rubber block, and a seal. Optionally, fluid control structures can also be designed.

[0046] In this embodiment, the spring-loaded plunger 4 includes a plunger head and a compression spring. The end of the plunger head closest to the part is designed as a smooth spherical surface. The smooth spherical plunger head reduces contact stress with the part, preventing scratches; the compression spring provides elastic cushioning, ensuring accurate positioning while adapting to part dimensional tolerances.

[0047] Specifically, the plunger head and compression spring are tightly fitted together. One end of the compression spring is connected to the rear of the plunger head, and the other end is fixed to the housing inside the spring-loaded plunger. During operation, the compression spring is fitted onto the shaft portion behind the plunger head, providing elastic support for the plunger head. When the plunger head is subjected to external force, the compression spring is compressed, storing elastic potential energy; after the external force disappears, the compression spring returns to its original deformation, pushing the plunger head back to its original position, thereby achieving adaptive adjustment and precise positioning during part positioning.

[0048] In other embodiments, the clamping part 22 can also be configured as a rubber buffer block, spring pin, gas spring assembly, etc. on the gripper 3, which can also achieve the same adaptive adjustment and precise positioning effect as the spring-loaded plunger 4.

[0049] Further preferred options are those that refer to... Figure 2 and Figure 3 The positioning base 1 is provided with a tapered positioning pin 5 for longitudinally limiting the parts, and the tapered positioning pin 5 is detachably connected to the positioning base 1. Specifically, the end of the tapered positioning pin 5 away from the positioning base 1 is tapered.

[0050] Combination Figure 4 and Figure 5 The tapered locating pin 5 can longitudinally limit the position of the part, ensuring its precise positioning in that direction and improving positioning accuracy. Its detachable connection allows for easy replacement of the locating pin according to different part specifications, enhancing the mechanism's versatility. The tapered locating pin 5 can guide the part to position quickly, adapt to part tolerances, reduce damage to the part, and improve positioning accuracy and efficiency.

[0051] In a specific embodiment, the drive unit 21 is configured as a pneumatic cylinder, a hydraulic cylinder, or a linear motor. This allows for flexible selection of the power source based on different working scenarios and requirements. Pneumatic cylinders are low-cost and have a fast response; hydraulic cylinders have high output force; and linear motors offer high precision, thus meeting diverse positioning needs. In this embodiment, the drive unit 21 is configured as a pneumatic cylinder. In this embodiment, the pneumatic cylinder and the gripper 3 are connected as a single unit via a mounting block.

[0052] Furthermore, refer to Figure 1The part positioning mechanism also includes a limiting part 6, which limits the travel of the drive part 21. The limiting part 6 is further equipped with a limiting element, the end of which faces the drive part 21. The design of the limiting part 6 ensures that when the drive part 21 moves the clamping part 22, it accurately reaches the designated position. This avoids damage to the part due to excessive travel or inaccurate part positioning due to insufficient travel, improving the reliability and stability of positioning, and ensuring production consistency and product quality. The limiting element can directly contact the drive part 21, more precisely limiting its range of motion, preventing the drive part 21 from exceeding its travel, further improving the accuracy and stability of positioning, and reducing the risk of equipment failure.

[0053] In a specific embodiment, the implementation principle of this part positioning mechanism generally includes: when the part automated feeding injection molding equipment is running, the conveying mechanism transports the part to the preset position area on the positioning base 1. The control system PLC of the part automated feeding equipment sends a signal to start the clamping assembly. The cylinder on the clamping assembly drives the gripper 3 to move closer to the part and clamp it, so that the part is initially fixed on the base. With the help of the conical positioning pin 5, the width of the part can be limited. The spring-loaded plunger 4 installed on the gripper 3 drives it to push to one side. After the spring-loaded plunger 4 touches the part, it begins to retract. At this time, it achieves the effect of multiple sets of simultaneous over-positioning until it hits the limit block and the positioning is completed.

[0054] The specific embodiments of this utility model have been described above, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

[0055] In the description of this utility model, it should be understood that the terms "upper," "lower," "inner," "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The simple fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used for improvement. Any reference signs in the claims should not be construed as limiting the scope.

Claims

1. A part positioning mechanism, characterized in that, The device includes a positioning base for placing several groups of parts. The positioning base is provided with an alignment component for aligning and clamping the various groups of parts together. The alignment component includes a driving part and a clamping part. The driving part drives the clamping part to reciprocate toward the side where the parts are located, thereby achieving simultaneous alignment and clamping of several groups of parts.

2. The part positioning mechanism according to claim 1, characterized in that, The clamping part includes a gripper, and the gripper and the driving part are configured to be detachably connected.

3. The part positioning mechanism according to claim 2, characterized in that, The clamping part also includes a spring-loaded plunger disposed on the jaws, the position of which corresponds to the position of the part.

4. The part positioning mechanism according to claim 3, characterized in that, The spring-loaded plunger includes a plunger head and a compression spring. One end of the compression spring is connected to the plunger head, and the other end is fixed to the housing inside the spring-loaded plunger.

5. The part positioning mechanism according to claim 4, characterized in that, The end of the plunger head closest to the part is designed to be a smooth spherical shape.

6. The part positioning mechanism according to claim 1, characterized in that, The positioning base is provided with a tapered positioning pin for longitudinally limiting the parts, and the tapered positioning pin is detachably connected to the positioning base.

7. The part positioning mechanism according to claim 6, characterized in that, The tapered locating pin is tapered at the end furthest from the locating base.

8. The part positioning mechanism according to claim 1, characterized in that, The drive unit is configured as a cylinder, a hydraulic cylinder, or a linear motor.

9. The part positioning mechanism according to claim 8, characterized in that, It also includes a limiting part, which is used to limit the movement stroke of the drive part.

10. The part positioning mechanism according to claim 9, characterized in that, The limiting part is further provided with a limiting member, the end of which faces the driving part.

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