Multi-product floating pick-up mechanism

Abstract

The utility model discloses a kind of multi-product floating piece taking mechanism, including substrate, floating mechanism and several groups of piece taking clamp.Piece taking clamp includes first floating plate, horizontal cylinder, support and jaw assembly, first floating plate is equipped with the positioning pin that can move up and down, horizontal cylinder is used to drive support horizontal movement, at least two jaw assembly of relatively slidable are equipped on each support.First floating plate and second floating plate slide along mutually perpendicular direction, locking cylinder drives locking pin shaft to insert corresponding shaft hole to realize locking.By the floating cooperation of first floating plate, second floating plate and jaw assembly, positioning deviation in the process of piece taking can be compensated, and the adaptability, success rate and reliability of multi-product automatic piece taking are improved.

Description

Technical Field

[0001] This utility model relates to the field of casting and molding technology, specifically to a multi-product floating pick-up mechanism. Background Technology

[0002] In automated production processes involving vertical parting, after multiple products such as castings and sand cores are formed in the mold, they need to be ejected from the fixed mold by an ejector mechanism to achieve demolding. However, in actual production, especially when multiple molds and multiple products are being removed simultaneously, the relative positions of the products are easily affected by factors such as thermal expansion caused by the mold being at high temperatures for extended periods and the rotation of the workstation. This positional deviation makes it difficult for traditional rigid-connected robotic arms to simultaneously and accurately remove all products. If forced to operate, it can easily lead to collisions and interference between the removal fixture and the product, causing ejector pin bending, scratches on the product surface, or even mold damage, severely restricting production safety and efficiency.

[0003] Currently, solving this problem typically requires frequent manual intervention for point-to-point teaching and fine-tuning, which not only results in low automation and long cycle times but also makes it difficult to guarantee the long-term stability of the part-picking process. Therefore, existing technologies lack an automated solution that can automatically adapt to product position deviations and achieve efficient synchronous part-picking of multiple products, which has become a key bottleneck in improving the automation level and production efficiency of vertical parting production lines. Utility Model Content

[0004] (I) Technical Solution

[0005] To solve the above-mentioned technical problems, this utility model provides a multi-product floating pick-up mechanism.

[0006] The specific technical solution is as follows: a multi-product floating pick-up mechanism, including a base plate, a floating mechanism, and several sets of pick-up clamps. The pick-up clamps include a first floating plate, a horizontal cylinder, a bracket, and a gripper assembly. The first floating plate is provided with a positioning pin that can move up and down for insertion into the corresponding mold for positioning. The horizontal cylinder is installed on the first floating plate and is used to push the bracket to move horizontally. The gripper assembly is installed on the bracket and can clamp the formed product in the closed state. Each bracket is provided with at least two gripper assemblies, and the two gripper assemblies can slide relative to each other.

[0007] The floating mechanism includes a locking pin, a locking cylinder, a mounting plate, and a second floating plate. The mounting plate is fixed to the lower surface of the base plate, the second floating plate is slidably disposed below the mounting plate, and the first floating plate is slidably disposed below the second floating plate. The sliding directions of the first floating plate and the second floating plate are perpendicular. The locking cylinder is disposed on the base plate to drive the locking pin to move up and down. The first floating plate and the second floating plate are provided with shaft holes for the locking pin to be inserted.

[0008] Furthermore, it also includes a purging mechanism, which includes several purging pipes connected to an air source. Each purging pipe has two air nozzles, corresponding to the cavities of the fixed mold and the moving mold, respectively.

[0009] Furthermore, the floating mechanism also includes a first slide rail, a second slide rail, a first slide groove, and a second slide groove. The first slide rail is located on the upper surface of the first floating plate, and the first slide groove is located on the lower surface of the second floating plate, with the first slide groove cooperating with the first slide rail. The second slide groove is located on the lower surface of the mounting plate, and the second slide rail is located on the upper surface of the second floating plate, with the second slide groove cooperating with the second slide rail.

[0010] Furthermore, the gripper assembly includes a base and a pneumatic gripper, the bracket includes a horizontal base plate, a third slide rail is provided on the horizontal base plate, the base cooperates with the third slide rail and can slide along it, the pneumatic gripper is mounted on the base, and the pneumatic gripper is used to clamp the formed product.

[0011] Furthermore, both the first floating plate and the second floating plate are provided with a first limiting mechanism and a second limiting mechanism, which are respectively used to limit the sliding distance of the first floating plate and the second floating plate.

[0012] Furthermore, the first limiting mechanism includes a first adjustable bolt, which is fixed by a first floating plate and distributed at both ends of a second floating plate to abut against the second floating plate. The axis of the first adjustable bolt is parallel to the first slide rail. The second limiting mechanism includes a second adjustable bolt, which is fixed by a second floating plate and distributed at both ends of a mounting plate to abut against the mounting plate. The axis of the second adjustable bolt is parallel to the second slide rail.

[0013] Furthermore, it also includes two stops, which are located at both ends of the third slide rail to abut against the base.

[0014] (ii) Beneficial effects

[0015] Compared with existing technologies, the design of rodless cylinders that stop air flow and float after clamping the product, combined with a floating plate mechanism that can adaptively move micro-motion in a two-dimensional plane and the lateral sliding adjustment of the gripper assembly itself, constitutes a multi-floating buffer system. This system can absorb and compensate for positioning errors in each stage, improve the success rate and reliability of automated part removal under harsh working conditions such as vertical parting, and integrate multi-station part removal and in-mold purging functions, significantly improving production efficiency and automation level. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0019] Figure 3 This is a schematic diagram of the component retrieval status of this utility model;

[0020] Figure 4 This is a schematic diagram of the gripper assembly in this utility model. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0022] To address the problems existing in the relevant prior art, this utility model proposes a demolding and part removal mechanism. The principle and structure of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-4 The present application provides a multi-product floating pick-up mechanism, which includes a base plate 60, a floating mechanism 70, and several sets of pick-up clamps 100.

[0024] The picking mechanism positions the formed product to prevent it from falling directly during the ejection process. The picking mechanism can be mounted on a multi-axis robotic arm or on a drive mechanism formed by multiple linear modules, thereby achieving multi-directional displacement of the picking mechanism. The picking fixture 100 includes a first floating plate 2, a rodless cylinder, a bracket 4, and a gripper assembly 5. The rodless cylinder is driven to move linearly by applying air pressure to the piston inside the cylinder tube. The guide rod 3 of the rodless cylinder is fixed at both ends to the two vertical side plates of the bracket 4, and its cylinder body 1 is mounted on the first floating plate 2. Because the cylinder body 1 is fixed, the guide rod is relatively free. When the rodless cylinder is ventilated, the cylinder body can drive the guide rod to slide relative to the cylinder body. After the air supply is cut off, the guide rod is in a free state because it can move freely. Similarly, in this application, the guide rod can also be set to a fixed state, and the cylinder body 1 can be set to a free state.

[0025] The gripper assembly 5 is mounted on the bracket. When closed, the gripper assembly 5 can clamp the molded product. The guide rod of the rodless cylinder is parallel to the direction of the ejector pin. When the rodless cylinder is ventilated, it pushes the guide rod to move the bracket, causing the gripper assembly 5 to reach the designated position. The gripper assembly 5 is then closed to clamp the product. At this time, the rodless cylinder stops ventilating, the ejection mechanism moves, and the ejector pin can smoothly push the product out of the mold cavity.

[0026] The floating mechanism includes a locking pin, a locking cylinder 77, a mounting plate 72, and a second floating plate 75. The mounting plate 72 is fixed to the lower surface of the base plate 60. The second floating plate 75 is slidably disposed below the mounting plate 72. The first floating plate 1 is slidably disposed below the second floating plate 75. The sliding directions of the first floating plate 1 and the second floating plate 75 are perpendicular. The locking cylinder 77 is disposed on the base plate for driving the locking pin to move up and down. Shaft holes are provided on the first floating plate and the second floating plate for the locking pin to be inserted.

[0027] The sliding of the first floating plate and the second floating plate is achieved in the following manner: it also includes a first slide rail 76, a second slide rail 73, a first slide groove and a second slide groove. The first slide rail 76 is located on the upper surface of the first floating plate, the first slide groove is located on the lower surface of the second floating plate, and the first slide groove cooperates with the first slide rail; the second slide groove is located on the lower surface of the mounting plate, the second slide rail 73 is located on the upper surface of the second floating plate, and the second slide groove cooperates with the second slide rail.

[0028] Furthermore, in this embodiment, a first limiting mechanism and a second limiting mechanism are provided to limit the sliding distance of the first floating plate and the second floating plate, respectively. The first limiting mechanism includes a first adjustable bolt 74, which is fixed by the first floating plate 1 and is distributed at both ends of the second floating plate to abut against the second floating plate. The axis of the first adjustable bolt is parallel to the first slide rail. The second limiting mechanism includes a second adjustable bolt 71, which is fixed by the second floating plate and is distributed at both ends of the mounting plate to abut against the mounting plate. The axis of the second adjustable bolt is parallel to the second slide rail.

[0029] In this embodiment, a purging mechanism is also provided, which includes a plurality of purging pipes 6. The purging pipes 6 are connected to an air source. The purging pipes include air nozzles in two directions, which correspond to the mold cavities of the fixed mold 10 and the moving mold 20, respectively.

[0030] For the dual-cavity mold, this embodiment of the application provides a dual-gripper configuration. That is, each support has at least two gripper assemblies, and the two gripper assemblies can slide relative to each other. When there is a slight deviation in the mold position or support position, the gripper assemblies can be fine-tuned. Specifically, the gripper assembly includes a base 54 and a pneumatic gripper 51. The support includes a horizontal base plate 41, on which a slide rail 52 is provided. The base 54 cooperates with the slide rail 54 and can slide along it. The pneumatic gripper 51 is mounted on the base and is used to clamp the molded product. Two stops 53 can be used for limiting movement; the two stops 53 are located at both ends of the slide rail to abut against the base. This structure allows the gripper assembly to move slightly freely, thereby automatically correcting displacement deviations.

[0031] The ejection mechanism 30 includes several ejector pins 31, which can extend into the mold to eject the formed product. The number and arrangement of the ejector pins are set according to the shape of the mold. After the product is shaped in the mold, the ejection mechanism is used to eject it from the mold to complete the demolding.

[0032] In this embodiment, a purging mechanism is also provided, which includes a plurality of purging pipes 6. The purging pipes 6 are connected to an air source. The purging pipes include air nozzles in two directions, which correspond to the mold cavities of the fixed mold 10 and the moving mold 20, respectively.

[0033] The working process of the demolding and part-removing mechanism is as follows: First, the multi-axis robot drives the entire part-removing mechanism to be positioned above the mold. The locking cylinder retracts the locking pin, releasing the floating degrees of freedom of the first and second floating plates. Then, the rodless cylinder is vented, driving the guide rod and bracket to move the gripper assembly. After the gripper closes and clamps the product, the rodless cylinder is de-vented, allowing the guide rod to be in a floating state. At this time, the ejection mechanism is activated, and the ejector pin ejects the product. The slight positional deviation generated during the product ejection process will push the gripper assembly, which in turn drives the first floating plate to move slightly in one direction on the second floating plate through the bracket and guide rod. At the same time, the second floating plate can also move slightly on the mounting plate, realizing bidirectional adaptive floating and ensuring smooth ejection without interference. After part removal, the locking cylinder drives the locking pin to insert into the floating plate shaft hole to lock it. The robot transfers the product to the designated position, and the blowing mechanism cleans the mold cavity at the same time.

[0034] The beneficial effects of this technical solution are mainly reflected in the following aspects: by using a rodless cylinder to de-air float after clamping the product, combined with a floating plate mechanism that can adaptively micro-move in a two-dimensional plane and the lateral sliding adjustment of the gripper assembly itself, a multi-floating buffer system is formed, which can absorb and compensate for positioning errors in each link, improve the success rate and reliability of automated part removal under harsh working conditions such as vertical parting, and integrate multi-station part removal and in-mold purging functions, significantly improving production efficiency and automation level.

[0035] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-product floating pick-up mechanism, characterized in that: The device includes a base plate, a floating mechanism, and several sets of part-retrieving fixtures. Each part-retrieving fixture includes a first floating plate, a horizontal cylinder, a bracket, and a gripper assembly. The first floating plate is provided with a vertically movable positioning pin for insertion into a corresponding mold for positioning. The horizontal cylinder is mounted on the first floating plate and is used to push the bracket to move horizontally. The gripper assembly is mounted on the bracket and can clamp the formed product in a closed state. Each bracket is provided with at least two gripper assemblies, and the two gripper assemblies can slide relative to each other. The floating mechanism includes a locking pin, a locking cylinder, a mounting plate, and a second floating plate. The mounting plate is fixed to the lower surface of the base plate, the second floating plate is slidably disposed below the mounting plate, and the first floating plate is slidably disposed below the second floating plate. The sliding directions of the first floating plate and the second floating plate are perpendicular. The locking cylinder is disposed on the base plate to drive the locking pin to move up and down. The first floating plate and the second floating plate are provided with shaft holes for the locking pin to be inserted.

2. The multi-product floating pick-up mechanism according to claim 1, characterized in that: It also includes a purging mechanism, which includes several purging pipes connected to an air source. Each purging pipe has two air nozzles, corresponding to the cavities of the fixed mold and the moving mold, respectively.

3. The multi-product floating pick-up mechanism according to claim 2, characterized in that: The floating mechanism further includes a first slide rail, a second slide rail, a first slide groove, and a second slide groove. The first slide rail is located on the upper surface of the first floating plate, and the first slide groove is located on the lower surface of the second floating plate, with the first slide groove cooperating with the first slide rail. The second slide groove is located on the lower surface of the mounting plate, and the second slide rail is located on the upper surface of the second floating plate, with the second slide groove cooperating with the second slide rail.

4. The multi-product floating pick-up mechanism according to claim 2, characterized in that: The gripper assembly includes a base and a pneumatic gripper. The bracket includes a horizontal base plate with a third slide rail on it. The base and the third slide rail cooperate to slide along the slide rail. The pneumatic gripper is mounted on the base and is used to clamp the formed product.

5. The multi-product floating pick-up mechanism according to claim 3, characterized in that: The first floating plate and the second floating plate are each provided with a first limiting mechanism and a second limiting mechanism, which are used to limit the sliding distance of the first floating plate and the second floating plate, respectively.

6. The multi-product floating pick-up mechanism according to claim 5, characterized in that: The first limiting mechanism includes a first adjustable bolt, which is fixed by a first floating plate and distributed at both ends of a second floating plate to abut against the second floating plate. The axis of the first adjustable bolt is parallel to the first slide rail. The second limiting mechanism includes a second adjustable bolt, which is fixed by a second floating plate and distributed at both ends of a mounting plate to abut against the mounting plate. The axis of the second adjustable bolt is parallel to the second slide rail.

7. The multi-product floating pick-up mechanism according to claim 6, characterized in that: It also includes two stops, which are located at both ends of the third slide rail to abut against the base.

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