Special clamp device for automatically embedding mold insert

Abstract

The utility model discloses a special fixture device for automatically embedding a mold insert, which belongs to the technical field of fixtures and comprises an upper layer plate and a lower layer plate which is arranged on one side below the upper layer plate in parallel and oppositely, an insert clamping mechanism is arranged on the bottom surface of the upper-layer plate; a pull-out air cylinder used for driving the lower layer plate to move relative to the upper layer plate in the vertical direction is connected between the upper layer plate and the lower layer. A plurality of vacuum chucks are fixed on the bottom surface of the lower-layer plate; a product clamping mechanism is arranged on one side of the bottom face of the lower layer plate. Compared with the prior art, manual feeding and discharging operation is not needed, the risk that a machine hurts people is avoided, and production efficiency and product consistency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a special clamp device for automatically embedding mold inserts. Background Art

[0002] At present, the production process of OPP seat rings mainly relies on manual loading and unloading operations. The raw materials used include seat rings and 4 inserts, and the equipment used includes injection molding machines and punching machines.

[0003] The OPP seat ring consists of two parts: one is the plate structure, and the other is four inserts, which are combined by mold injection. The plate structure is produced by an injection molding machine, and then a person manually enters the injection molding machine to take the plate structure blank out of the mold, and then puts it into the punching machine for punching. After the punching is completed, it is manually scraped / deburred with diagonal pliers. Then the trimmed plate structure and the four inserts are put into the mold of the injection molding machine for combination.

[0004] In this process, the injection molding machine has the risk of pinching the human body, and manual deburring has the problems of poor precision, low efficiency and poor product consistency. In addition, although there is also a production method that uses a scraper to replace manual deburring, manual loading and unloading operations are still required. Summary of the invention

[0005] In view of the problem of low loading and unloading efficiency in the production process of OPP seat rings in the prior art, the purpose of the utility model is to provide a special clamp device for automatically embedding mold inserts, so as to at least partially solve the above problem.

[0006] To achieve the above purpose, the technical solution of the utility model is:

[0007] A special clamp device for automatically embedding mold inserts, comprising an upper plate and a lower plate arranged parallel to and relatively to one side below the upper plate; an insert clamping mechanism is provided on the bottom surface of the upper plate; a pulling cylinder is connected between the upper plate and the lower plate for driving the lower plate to move in a vertical direction relative to the upper plate; a plurality of vacuum suction cups are fixed to the bottom surface of the lower plate; a product clamping mechanism is provided on one side of the bottom surface of the lower plate.

[0008] In some preferred embodiments, the insert clamping mechanism includes a slide cylinder fixed on the upper plate and a parallel finger cylinder fixed on the output end of the slide cylinder, and both fingers of the parallel finger cylinder are provided with a sleeve for clamping the insert.

[0009] In some preferred embodiments, the product clamping mechanism includes a telescopic cylinder, a clamping arm, a support and a clamping claw; the telescopic cylinder and the support are fixedly connected relative to the lower plate, and there are two supports and they are symmetrically arranged about the telescopic cylinder; there are two clamping arms and they are pivotally connected to the two supports in a lever-like manner, one end of the two clamping arms is hinged to the output end of the telescopic cylinder, and the other end is fixed with the clamping claw.

[0010] In some preferred embodiments, a vacuum generator is fixed to the top surface of the lower plate, and each of the vacuum suction cups is connected to the vacuum generator through a pipeline.

[0011] In some preferred embodiments, the upper plate is fixedly connected with a three-way joint and a negative pressure feedback valve, and the vacuum generator, the three-way joint and the negative pressure feedback valve are connected in sequence through pipelines.

[0012] In some preferred embodiments, an induction switch is fixedly mounted on the bottom surface of the upper plate.

[0013] In some preferred embodiments, a flange is fixed to one side of the top surface of the upper plate, and the flange is used to be connected to the output end of the robot.

[0014] In some preferred embodiments, a guide column is fixedly mounted on the bottom surface of the upper plate; one of the upper plate and the lower plate is fixedly mounted with a plurality of linear bearings, and the other is fixedly mounted with a matching guide shaft.

[0015] In some preferred embodiments, the vacuum suction cup includes a strong vacuum suction cup and a multi-layer vacuum suction cup; the strong vacuum suction cup includes a fixed seat, a movable sleeve and a suction cup body, the fixed seat is detachably fixed to the lower plate, the lower end of the fixed seat is provided with a sleeve hole adapted to the movable sleeve, the upper end of the movable sleeve is axially movably installed in the sleeve hole, the fixed seat is provided with a flow channel hole connected to the sleeve hole, the fixed seat is provided with a locking screw for locking the position of the movable sleeve in the sleeve hole, and the suction cup body is fixed to the lower end of the movable sleeve.

[0016] In some preferred embodiments, a valve island is fixedly mounted on the upper plate, and each pneumatic component is connected to the valve island.

[0017] By adopting the above technical scheme, the beneficial effect of the utility model is that the special clamp device provided by the utility model, through the arrangement of the vacuum suction cup, the product clamping mechanism and the pull-out cylinder, can grab the injection-molded product in the injection molding machine under the drive of the robot, and easily transfer it to the punching station for punching processing, and transfer it to the scraping station for deburring processing. Of course, after the scraping is completed, the product can be placed in the shaping frame for shaping, and then the shaped product can be placed in the lifting belt conveyor and transported to the inspection and packaging station. Due to the arrangement of the insert clamping mechanism, the insert pre-arranged at the vibration plate can be grabbed under the drive of the robot, and then the insert can be placed in the injection molding machine for injection molding. Compared with traditional technology, this utility model does not require manual loading and unloading operations, which not only avoids the risk of mechanical injuries, but also helps to improve production efficiency and product consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the front view of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the utility model.

[0020] Figure 3 It is a schematic diagram of the structure of the utility model in another direction.

[0021] Figure 4 It is a structural schematic diagram of the insert clamping mechanism in the utility model.

[0022] Figure 5 It is a structural schematic diagram of the product clamping mechanism in the utility model.

[0023] Figure 6 It is a structural schematic diagram of the product clamping mechanism in the utility model in another direction.

[0024] Figure 7 This is a schematic diagram of the utility model in use when grabbing products.

[0025] In the figure: 1-upper plate, 2-lower plate, 3-pull-out cylinder, 4-guide shaft, 5-linear bearing, 6-connecting seat, 7-insert clamping mechanism, 71-slide cylinder, 72-parallel finger cylinder, 73-jacket, 8-guide rod, 9-vacuum suction cup, 91-strong vacuum suction cup, 92-multi-layer vacuum suction cup, 10-vacuum generator, 11-product clamping mechanism, 111-telescopic cylinder, 112-clamping arm, 113-support, 114-clamping claw, 115-connecting rod, 12-negative pressure feedback valve, 13-three-way connector, 14-induction switch, 15-flange, 16-frame plate, 17-valve island. DETAILED DESCRIPTION

[0026] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] It should be noted that, in the description of the present invention, the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", etc. are based on the description of the structure of the present invention as shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0028] The "first" and "second" in this technical solution are only used to distinguish the names of the same or similar structures, or corresponding structures with similar functions, and are not an arrangement of the importance of these structures, nor do they have a ranking, comparison of size, or other meanings.

[0029] In addition, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the two structures. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood based on the overall idea of ​​the utility model and the specific context of the scheme.

[0030] Example

[0031] A special fixture device for automatically embedding mold inserts, such as Figure 1-3 As shown, it includes an upper plate 1 and a lower plate 2.

[0032] The lower plate 2 is arranged on the lower side of the upper plate 1. The upper plate 1 is parallel to and opposite to the lower plate 2. The area of ​​the lower plate 2 is smaller than that of the upper plate 1, so that part of the upper plate 1 is not blocked by the lower plate 2. For example, the left and right sides of the upper plate 1 are not blocked by the lower plate 2.

[0033] A pull-out cylinder 3 is fixedly installed at the center of the top surface of the upper plate 1. The pull-out cylinder 3 has a rod-shaped output end (i.e., an output rod). The upper plate 1 is correspondingly provided with a through hole for the rod-shaped output end of the pull-out cylinder 3 to pass through, so that the output rod of the pull-out cylinder 3 can extend to the lower side of the upper plate 1, so as to drive the lower plate 2 to move relative to the upper plate 1, and the lower plate 2 moves in a direction perpendicular to the upper plate 1, i.e., moves in the up and down direction. In this embodiment, guide shafts 4 are fixedly installed at the four corners of the lower plate 2, and four matching linear bearings 5 ​​are correspondingly fixedly installed on the upper plate 1.

[0034] A connecting seat 6 is fixed to the top surface of the lower plate 2, and a connecting block is fixed to the output rod of the pulling cylinder 3. The size of the connecting block is larger than the size of the output rod of the pulling cylinder 3. A concave cavity matching the connecting block is provided on one side of the bottom surface of the connecting seat, and a through hole matching the output rod of the pulling cylinder 3 is provided on the top surface of the connecting seat. In addition, a notch is provided on the side of the connecting seat so that the output rod of the pulling cylinder 3 and the connecting block can be loaded through the notch.

[0035] The left side of the bottom surface of the upper plate 1 is provided with an insert clamping mechanism 7. Figure 4 As shown, the insert clamping mechanism 7 includes a slide cylinder 71, a parallel finger cylinder 72 and a jacket 73. The slide cylinder 71 is fixed to the left side of the bottom surface of the upper plate 1 through a connecting plate. The slide cylinder 71 is arranged vertically, and its output end moves in the up and down direction. The parallel finger cylinder 72 is fixed to the output end of the slide cylinder 71 through a connecting plate. The two fingers of the parallel finger cylinder 72 are provided with a jacket 73 for clamping the insert. Grooves are provided at the relative positions of the two jackets 73. When the two jackets 73 move to relative positions, the two grooves arranged in relative positions enclose a shape that can clamp the insert, for example, the groove is in the shape of a semicircular hole, so that the cylindrical insert can be clamped.

[0036] In this embodiment, two insert clamping mechanisms 7 are provided and are respectively installed at the front and rear of the left side of the bottom surface of the upper plate 1. A guide rod 8 is fixedly installed on the right side of the bottom surface of the upper plate 1. The guide rod 8 is used to match the guide hole opened on the mold. There are also two guide rods 8 and they are respectively installed at the front and rear of the right side of the bottom surface of the upper plate 1.

[0037] A plurality of vacuum suction cups 9 are fixed to the bottom surface of the lower plate 2, and the vacuum suction cups 9 include a strong vacuum suction cup 91 and a multi-layer vacuum suction cup 92. Four strong vacuum suction cups 91 are configured and are respectively arranged at the front and rear positions on the left side and the front and rear positions in the middle of the bottom surface of the lower plate 2. Two multi-layer vacuum suction cups 92 are configured and are respectively arranged at the front and rear positions on the right side of the bottom surface of the lower plate 2.

[0038] In this embodiment, the strong vacuum suction cup 91 includes a fixed seat, a movable sleeve and a suction cup body. The fixed seat is detachably fixed to the bottom surface of the lower plate 2, for example, by screws. A sleeve hole is provided at the lower end of the fixed seat, and the inner diameter of the sleeve hole is slightly larger than the diameter of the movable sleeve, so that the upper end of the movable sleeve can be axially movably installed in the sleeve hole, and a sealing ring is installed on the inner wall of the sleeve hole. In addition, a flow channel hole connected to the sleeve hole is provided on the side of the fixed seat. A threaded hole connected to the sleeve hole is also provided on the side of the fixed seat, and a locking screw for locking the position of the movable sleeve in the sleeve hole is screwed into the threaded hole. The suction cup body is fixed to the lower end of the movable sleeve, and is specifically configured as a Schmalz suction cup.

[0039] Since the multi-layer suction cup 92 has a multi-layer stacked structure, its length can be changed more flexibly, so there is no need to set a structure for adjusting the position of the suction cup.

[0040] A vacuum generator 10 is fixed on the top surface of the lower plate 2, and each vacuum suction cup is connected to the vacuum generator 10 through a pipeline. The vacuum generator 10 forms negative pressure through the flow of compressed air, and its negative pressure port is used to connect each vacuum suction cup.

[0041] A product clamping mechanism 11 is provided on one side of the bottom surface of the lower plate 2. Figure 5-6 As shown, the product clamping mechanism 11 specifically includes a telescopic cylinder 111 , a clamping arm 112 , a support 113 and a clamping claw 114 .

[0042] The telescopic cylinder 111 is a cylinder with a rod-shaped output end. The telescopic cylinder 111 is fixedly mounted on one side of the top surface of the lower plate 2. The lower plate 2 is provided with a through slot so that the output rod of the telescopic cylinder 111 can extend into the lower side of the lower plate 2. There are two supports 113, both fixed on the bottom surface of the lower plate 2. The two supports 113 are symmetrically arranged on the front and rear sides of the telescopic cylinder 111. There are also two clamping arms 112, which are respectively pivotally connected to the two supports 113 in a lever shape. The ends of the two clamping arms 112 that are close to each other are hinged to the output end of the telescopic cylinder 111 (through a connecting rod 115), and the ends of the two clamping arms 112 that are away from each other are fixed with clamping claws 114. The clamping claws 114 are generally plate-shaped or sheet-shaped, and rubber pads are fixed on the opposite sides of the two. With such arrangement, when the output rod of the telescopic cylinder 111 performs a telescopic action, the two clamping arms 112 respectively rotate around the support 113, so that the distance between the two clamping claws 114 changes, thereby clamping or releasing the product.

[0043] A negative pressure feedback valve 12 and a three-way joint 13 are fixedly connected to the right side of the top surface of the upper plate 1. One of the ports of the three-way joint 13 is connected to the negative pressure port of the vacuum generator 10, and one of the other two ports of the three-way joint 13 is connected to the negative pressure feedback valve 12 through a pipeline, and the other is connected to a multi-way joint through a pipeline, and each vacuum suction cup is connected to the multi-way joint through a pipeline. In this way, the vacuum generator 10 can detect the vacuum degree of the vacuum generator 10 through the negative pressure feedback valve 12 while providing vacuum negative pressure to each vacuum suction cup.

[0044] An induction switch 14 is also fixedly installed on the right side of the bottom surface of the upper plate 1. The induction switch 14 is used to sense whether the clamp device is close to the product. A flange 15 is provided on one side of the top surface of the upper plate 1. The flange 15 is fixedly connected to the top surface of the upper plate 1 through a frame plate 16, and the flange 15 is used to connect to the end of the robot.

[0045] A valve island 17 is also fixedly installed on the left side of the top surface of the upper plate 1, and all pneumatic components are connected to the valve island 17, for example, the pull-out cylinder 3, the slide cylinder 71, the parallel finger cylinder 72, the telescopic cylinder 114, the three-way joint 13, etc. are all connected to the valve island 17.

[0046] The use process of the special fixture device for automatically embedding mold inserts provided by the utility model is as follows:

[0047] When in use, the flange 15 is fixedly connected to the end of the robot, and the robot drives the special clamp device provided in this embodiment to grab the plate-like structure at the fixed point 1 in the injection molding machine. When grabbing, first, 6 vacuum suction cups 9 vacuum absorb the plate-like structure, and after the vacuum suction cups 9 are sucked tightly, Figure 7 As shown, the robot drives the special clamp device to continue to approach until the induction switch 14 senses the plate-like structure, then the product clamping mechanism 11 is activated and clamps the product, and then the pulling cylinder 3 is activated to pull the plate-like structure out of the mold of the injection molding machine.

[0048] Then the robot drives the special clamp device from the injection molding machine to the cutting machine, and transfers the plate-like structure to the punching station. During the transfer, the two guide rods 8 are aligned with the guide sleeve at the punching station, and then the plate-like structure is placed in the punching station. Then the robot exits, adjusts the position, and grabs the four inserts pre-arranged at the vibration plate through the insert clamping mechanism 7, and then puts the four inserts and the trimmed plate-like structure into the mold in the fixed point 2 of the injection molding machine. Then the robot exits, and the injection molding machine starts the injection molding work. After the injection molding is completed, the plate-like structure with the insert installed is grabbed again by the product clamping mechanism 11 and brought to the floating spindle for scraping / deburring. After that, the plate-like structure is placed in the shaping frame for shaping, and then the shaped product is placed in the lifting belt conveyor. The robot returns to the origin and waits for the injection molding machine to be completed. A cycle is completed, and the lifting belt conveyor brings the product to the inspection station, and after inspection, it is sealed and put into storage. Repeat the cycle in sequence.

[0049] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A special fixture device for automatically embedding mold inserts, characterized in that: It includes an upper plate and a lower plate arranged parallel to and opposite to one side below the upper plate; an insert clamping mechanism is arranged on the bottom surface of the upper plate; a pulling cylinder is connected between the upper plate and the lower plate for driving the lower plate to move in a vertical direction relative to the upper plate; a plurality of vacuum suction cups are fixed to the bottom surface of the lower plate; a product clamping mechanism is arranged on one side of the bottom surface of the lower plate.

2. The special fixture device for automatically embedding mold inserts according to claim 1 is characterized in that: The insert clamping mechanism comprises a slide cylinder fixed on the upper plate and a parallel finger cylinder fixed on the output end of the slide cylinder, and two fingers of the parallel finger cylinder are provided with a clamping sleeve for clamping the insert.

3. The special fixture device for automatically embedding mold inserts according to claim 1 is characterized in that: The product clamping mechanism includes a telescopic cylinder, a clamping arm, a support and a clamping claw; the telescopic cylinder and the support are fixedly connected relative to the lower plate, and there are two supports and they are symmetrically arranged about the telescopic cylinder; there are two clamping arms and they are pivotally connected to the two supports in a lever-like manner, one end of the two clamping arms is hinged to the output end of the telescopic cylinder, and the other end is fixed with the clamping claw.

4. The special fixture device for automatically embedding mold inserts according to claim 1 is characterized in that: A vacuum generator is fixed on the top surface of the lower plate, and each of the vacuum suction cups is connected to the vacuum generator through a pipeline.

5. The special fixture device for automatically embedding mold inserts according to claim 4 is characterized in that: The upper plate is fixedly connected with a three-way joint and a negative pressure feedback valve, and the vacuum generator, the three-way joint and the negative pressure feedback valve are connected in sequence through pipelines.

6. The special fixture device for automatically embedding mold inserts according to claim 1 is characterized in that: An induction switch is fixedly installed on the bottom surface of the upper plate.

7. The special fixture device for automatically embedding mold inserts according to claim 1 is characterized in that: A flange is fixed to one side of the top surface of the upper plate, and the flange is used to be connected to the output end of the robot.

8. The special fixture device for automatically embedding mold inserts according to claim 1 is characterized in that: A guide column is fixedly installed on the bottom surface of the upper plate; a plurality of linear bearings are fixedly installed on one of the upper plate and the lower plate, and a matching guide shaft is fixedly installed on the other.

9. The special fixture device for automatically embedding mold inserts according to claim 1, characterized in that: The vacuum suction cup includes a strong vacuum suction cup and a multi-layer vacuum suction cup; the strong vacuum suction cup includes a fixed seat, a movable sleeve and a suction cup body, the fixed seat is detachably fixed to the lower plate, the lower end of the fixed seat is provided with a sleeve hole adapted to the movable sleeve, the upper end of the movable sleeve is axially movably installed in the sleeve hole, the fixed seat is provided with a flow channel hole connected to the sleeve hole, the fixed seat is provided with a locking screw for locking the position of the movable sleeve in the sleeve hole, and the suction cup body is fixed to the lower end of the movable sleeve.

10. The special fixture device for automatically embedding mold inserts according to claim 1, characterized in that: The upper plate is also fixedly mounted with a valve island, and each pneumatic component is connected to the valve island.

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