Automatic material grabbing manipulator of injection molding machine

Abstract

The utility model discloses an automatic material grabbing manipulator of injection molding machine relates to injection molding production auxiliary equipment technical field, the utility model discloses a mounting seat and device base, the bottom fixed connection in the top of mounting seat of device base, the top of device base is provided with mechanical grab hand, the utility model discloses a mechanical grab hand structure that two -end motor, thread rod, connecting plate, moving link and symmetrical jaw are formed, cooperate the accurate orientation of moving link to light pole, realize the synchronous opening and closing of jaw along the symmetrical direction, ensure that the even clamping force is added to injection molding part, and rubber pad and antiskid line of jaw working surface can buffer the clamping impact force to avoid the scratch or deformation of injection molding part, can also increase friction and prevent slipping when grabbing, solve the problem that traditional manipulator is easy to damage injection molding part and is not stable to grab, adapt to the grabbing demand of thin -walled and various specifications injection molding part, improve the reliability of grabbing and production safety.

Description

Technical Field

[0001] This utility model belongs to the technical field of injection molding production auxiliary equipment, and in particular relates to an automatic material gripping robot for injection molding machines. Background Technology

[0002] In the injection molding process, after the injection molding machine completes mold closing, injection, pressure holding, and cooling, the molded injection part needs to be removed from the mold and transferred to a conveyor belt or collection device. This step is called material handling. The traditional manual material handling method is inefficient and labor-intensive. Moreover, the temperature of the injection molded part is high when it is just demolded, which can easily cause burns to the operator. With the increasing demand for automated production, various material handling equipment has been gradually applied to the production line.

[0003] In existing equipment, most common injection molding machine gripping devices use a single motor to drive a single set of grippers, and control the opening and closing of the grippers through a cylinder or hydraulic cylinder to grip the injection molded parts. However, these devices have simple gripper guiding structures, which are prone to movement and deviation, resulting in inaccurate gripper alignment. This can easily scratch the surface of the injection molded parts or cause them to fall off during gripping. Therefore, we propose an automatic gripping robot for injection molding machines. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic material gripper for injection molding machines. The mechanical gripper, composed of a double-ended motor, threaded rod, threaded sleeve, connecting plate, moving rod, and symmetrical grippers, solves the problems of traditional robotic arms that easily damage injection molded parts and have unstable gripping.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is an automatic material gripping robot for injection molding machines, comprising: a mounting base and a device base, wherein the bottom of the device base is fixedly connected to the top of the mounting base, and a mechanical gripper is provided on the top of the device base;

[0007] The mechanical gripper includes a double-ended motor. The bottom of the double-ended motor is fixedly connected to the top of the device base. One end of the double-ended motor is fixedly connected to a threaded rod. A threaded sleeve is threadedly connected to the circumferential surface of the threaded rod. A moving block is fixedly connected to the circumferential surface of the threaded sleeve. A connecting plate is rotatably connected to the circumferential surface of the moving block. A transmission block is rotatably connected to the inner circumferential surface of the connecting plate. A moving rod is fixedly connected to the inner circumferential surface of the transmission block. A gripper is fixedly connected to the top of the moving rod. A support base is slidably connected to the bottom of the moving rod. The bottom of the support base is fixedly connected to the top of the device base.

[0008] Furthermore, a mounting plate is fixedly connected to the top of the support base, and a light rod is fixedly connected to the side of the mounting plate. The mounting plate provides stable support for the light rod, ensuring that the position of the light rod is fixed, and the light rod can accurately guide the sliding direction of the moving rod.

[0009] Furthermore, the circumferential surface of the optical rod passes through and is slidably connected to the circumferential surface of the movable rod. Two mounting plates are provided and are respectively fixedly connected to both ends of the optical rod. The optical rod passes through the movable rod to achieve a sliding fit, which further enhances the guiding effect on the movable rod and prevents the movable rod from tilting due to uneven force.

[0010] Furthermore, the number of grippers is set to two, and they are symmetrical to each other along the vertical central axis of the threaded rod. The working surface of the grippers is engaged with a rubber pad, and the surface of the rubber pad is provided with anti-slip texture. The two symmetrical grippers can apply clamping force evenly from both sides of the injection molded part, avoiding deformation or detachment of the injection molded part due to force on one side. The rubber pad can buffer the clamping impact force of the grippers on the injection molded part and prevent scratches on the surface of the injection molded part.

[0011] Furthermore, a lubrication device is provided inside the base of the device. The lubrication device includes a partition, the circumferential surface of which is fixedly connected to the inner circumferential surface of the base. An oil tank is fixedly connected to the bottom of the partition, and a transmission hose is fixedly connected to the circumferential surface of the oil tank. A pressing rod is slidably connected to the bottom of the oil tank, and a transmission rod is fixedly connected to the circumferential surface of the pressing rod. A sliding block is slidably connected to the side of the transmission rod, and the bottom of the sliding block is fixedly connected to the top of the partition. A second moving block is fixedly connected to one end of the transmission rod, and a crank is slidably connected inside the second moving block. A first bevel gear shaft is fixedly connected to one end of the crank, and a second bevel gear shaft is fixedly connected to the other end of the double-ended motor. The first bevel gear shaft and the second bevel gear shaft mesh with each other.

[0012] Furthermore, a support plate is rotatably connected to the circumferential surface of the first bevel gear shaft, and the bottom of the support plate is fixedly connected to the top of the partition. The support plate provides stable support for the first bevel gear shaft, preventing radial displacement of the first bevel gear shaft when meshing with the second bevel gear shaft, ensuring precise meshing of the two bevel gears, reducing gear wear, and distributing the force on the first bevel gear shaft.

[0013] Furthermore, the bottom of the support plate is fixedly connected to the top of the partition, and one end of the transmission hose is fixedly connected to the meshing point of the threaded sleeve and the threaded rod. The transmission hose accurately delivers the lubricating oil in the oil tank to the meshing point of the threaded sleeve and the threaded rod, ensuring sufficient lubrication at the meshing point, reducing thread wear, and avoiding thread jamming due to insufficient lubrication.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model utilizes a mechanical gripper structure composed of a double-ended motor, a threaded rod, a connecting plate, a moving rod, and symmetrical grippers. Combined with the precise guidance of the moving rod by the guide rod, the grippers open and close synchronously along a symmetrical direction, ensuring uniform clamping force on the injection molded parts. The rubber pads and anti-slip textures on the gripper working surfaces not only buffer the impact force to prevent scratches or deformation of the injection molded parts but also increase friction to prevent slippage during gripping. This solves the problems of traditional robotic arms easily damaging injection molded parts and unstable gripping, adapting to the gripping needs of thin-walled and various specifications of injection molded parts, and improving gripping reliability and production safety.

[0016] 2. This utility model uses a double-end motor to drive the lubrication device. The bevel gear shaft meshing drives the crank and transmission rod to automatically squeeze the oil tank to deliver lubricating oil to the meshing point between the threaded rod and the threaded sleeve. Automatic lubrication can be achieved without additional drive components. The support plate ensures the stability of the bevel gear transmission, and the transmission hose delivers oil accurately, effectively reducing thread wear, avoiding jamming, extending the service life of components, and reducing the maintenance cost and operational complexity of manual lubrication.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a partial cross-sectional structural diagram of the three-dimensional appearance of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the three-dimensional mechanical gripper of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the three-dimensional lubrication device of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Mounting base; 2. Device base; 3. Mechanical gripper; 31. Double-ended motor; 32. Threaded rod; 33. Threaded sleeve; 34. Moving block one; 35. Connecting plate; 36. Transmission block; 37. Gripper; 38. Support base; 39. Mounting plate; 310. Moving rod; 311. Smooth rod; 312. Rubber pad; 4. Lubrication device; 41. Partition plate; 42. Oil tank; 43. Transmission hose; 44. Extrusion rod; 45. Transmission rod; 46. Sliding block; 47. Moving block two; 48. Crank; 49. Bevel gear shaft one; 410. Bevel gear shaft two; 411. Support plate. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-4 This utility model is an automatic material gripping robot for injection molding machines, including: a mounting base 1 and a device base 2. The bottom of the device base 2 is fixedly connected to the top of the mounting base 1, and a mechanical gripper 3 is provided on the top of the device base 2.

[0027] The mechanical gripper 3 includes a double-ended motor 31. The bottom of the double-ended motor 31 is fixedly connected to the top of the device base 2. One end of the double-ended motor 31 is fixedly connected to a threaded rod 32. The circumferential surface of the threaded rod 32 is threadedly connected to a threaded sleeve 33. The circumferential surface of the threaded sleeve 33 is fixedly connected to a moving block 34. The circumferential surface of the moving block 34 is rotatably connected to a connecting plate 35. The inner circumferential surface of the connecting plate 35 is rotatably connected to a transmission block 36. The inner circumferential surface of the transmission block 36 is fixedly connected to a moving rod 310. The top end of the moving rod 310 is fixedly connected to a gripper 37. The bottom end of the moving rod 310 is slidably connected to a support base 38. The bottom of the support base 38 is fixedly connected to the top of the device base 2.

[0028] As shown in the figure, a mounting plate 39 is fixedly connected to the top of the support base 38, and a light rod 311 is fixedly connected to the side of the mounting plate 39. The mounting plate 39 provides stable support for the light rod 311, ensuring that the position of the light rod 311 is fixed. The light rod 311 can accurately guide the sliding direction of the moving rod 310.

[0029] As shown in the figure, the circumferential surface of the smooth rod 311 passes through and is slidably connected to the circumferential surface of the movable rod 310. There are two mounting plates 39, which are fixedly connected to both ends of the smooth rod 311. The smooth rod 311 passes through the movable rod 310 to achieve sliding engagement, which further strengthens the guiding effect on the movable rod 310 and prevents the movable rod 310 from tilting due to uneven force.

[0030] As shown in the figure, there are two grippers 37, which are symmetrical to each other along the vertical central axis of the threaded rod 32. The working surface of the grippers 37 is engaged with a rubber pad 312, and the surface of the rubber pad 312 is provided with anti-slip texture. The two symmetrical grippers 37 can apply clamping force evenly from both sides of the injection molded part, so as to avoid deformation or detachment of the injection molded part due to force on one side. The rubber pad 312 can buffer the clamping impact force of the grippers 37 on the injection molded part and prevent scratches on the surface of the injection molded part.

[0031] As shown in the figure, a lubrication device 4 is installed inside the base 2 of the device. The lubrication device 4 includes a partition 41. The circumferential surface of the partition 41 is fixedly connected to the inner circumferential surface of the base 2 of the device. An oil tank 42 is fixedly connected to the bottom of the partition 41. A transmission hose 43 is fixedly connected to the circumferential surface of the oil tank 42. A pressing rod 44 is slidably connected to the bottom of the oil tank 42. A transmission rod 45 is fixedly connected to the circumferential surface of the pressing rod 44. A sliding block 46 is slidably connected to the side of the transmission rod 45. The bottom of the sliding block 46 is fixedly connected to the top of the partition 41. A second moving block 47 is fixedly connected to one end of the transmission rod 45. A crank 48 is slidably connected inside the second moving block 47. A first bevel gear shaft 49 is fixedly connected to one end of the crank 48. A second bevel gear shaft 410 is fixedly connected to the other end of the double-ended motor 31. The first bevel gear shaft 49 and the second bevel gear shaft 410 mesh with each other.

[0032] As shown in the figure, a support plate 411 is rotatably connected to the circumferential surface of the bevel gear shaft 49, and the bottom of the support plate 411 is fixedly connected to the top of the partition plate 41. The support plate 411 provides stable support for the bevel gear shaft 49, preventing radial displacement of the bevel gear shaft 49 when it meshes with the bevel gear shaft 410, ensuring precise meshing of the two bevel gears, reducing gear wear, and at the same time, the support plate 411 can distribute the force on the bevel gear shaft 49.

[0033] As shown in the figure, the bottom of the support plate 411 is fixedly connected to the top of the partition plate 41, and one end of the transmission hose 43 is fixedly connected to the meshing point of the threaded sleeve 33 and the threaded rod 32. The transmission hose 43 accurately delivers the lubricating oil in the oil tank 42 to the meshing point of the threaded sleeve 33 and the threaded rod 32, ensuring sufficient lubrication at the meshing point, reducing thread wear, and avoiding thread jamming due to insufficient lubrication.

[0034] A specific application of this embodiment is as follows: When the injection molding machine completes the molding of the injection part and pushes it to the feeding position, the double-ended motor 31 starts, and its end near the threaded rod 32 drives the threaded rod 32 to rotate clockwise. The threaded rod 32 and the threaded sleeve 33 are driven by threaded engagement, which drives the threaded sleeve 33 to move along the axis of the threaded rod 32 towards the double-ended motor 31. The moving block 34 on the circumferential surface of the threaded sleeve 33 moves synchronously. The moving block 34 pulls the connecting plate 35 to rotate around the connection point between itself and the moving block 34. The other end of the connecting plate 35 pushes the moving rod 310 to slide along the support base 38 through the transmission block 36. At the same time, the moving rod 310 slides along the smooth rod 311. Two moving rods 310 drive the corresponding grippers 37 to move synchronously towards the injection part until the rubber pads 312 on the working surface of the grippers 37 are in contact with the surface of the injection part. The injection part is stably clamped by symmetrical clamping force. Then the robot arm drives the injection part to the conveyor belt or the designated storage position. The double-end motor 31 rotates in the opposite direction, and the threaded rod 32 drives the threaded sleeve 33 to move away from the double-end motor 31. The connecting plate 35 pulls the moving rods 310 and grippers 37 to reset, release the injection part, and complete one gripping cycle. Throughout the process, the anti-slip texture of the rubber pad 312 prevents the injection part from slipping, and the smooth rod 311 and the support seat 38 ensure the stability of the gripper 37.

[0035] While the mechanical gripper 3 is operating, the end of the double-ended motor 31 away from the threaded rod 32 drives the second bevel gear shaft 410 to rotate. The second bevel gear shaft 410 meshes with the first bevel gear shaft 49, driving the first bevel gear shaft 49 to rotate synchronously. The first bevel gear shaft 49 drives the crank 48 to rotate around its own axis. The end of the crank 48 away from the first bevel gear shaft 49 slides inside the second moving block 47, pushing the second moving block 47 to move back and forth in the horizontal direction. The second moving block 47 drives the transmission rod 45 to slide along the sliding block 46. The transmission rod 45 pulls the extrusion rod 44 to move up and down along the bottom of the oil tank 42. When the extrusion rod 44 moves upward, it extrudes the internal space of the oil tank 42, causing the lubricating oil in the oil tank 42 to generate pressure. The lubricating oil is delivered to the meshing point of the threaded sleeve 33 and the threaded rod 32 through the transmission hose 43 to lubricate the threaded meshing part, ensuring smooth long-term transmission between the threaded sleeve 33 and the threaded rod 32 and reducing component wear.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic material handling robot for an injection molding machine, comprising a mounting base (1) and a device base (2), characterized in that: The bottom of the device base (2) is fixedly connected to the top of the mounting base (1), and a mechanical gripper (3) is provided on the top of the device base (2). The mechanical gripper (3) includes a double-ended motor (31), the bottom of which is fixedly connected to the top of the device base (2). One end of the double-ended motor (31) is fixedly connected to a threaded rod (32). The circumferential surface of the threaded rod (32) is threadedly connected to a threaded sleeve (33). The circumferential surface of the threaded sleeve (33) is fixedly connected to a moving block (34). The circumferential surface of the moving block (34) is rotatably connected to a connecting plate (35). The inner circumferential surface of the connecting plate (35) is rotatably connected to a transmission block (36). The inner circumferential surface of the transmission block (36) is fixedly connected to a moving rod (310). The top end of the moving rod (310) is fixedly connected to a gripper (37). The bottom end of the moving rod (310) is slidably connected to a support seat (38). The bottom of the support seat (38) is fixedly connected to the top of the device base (2).

2. The automatic material handling robot for an injection molding machine according to claim 1, characterized in that, The top of the support base (38) is fixedly connected to the mounting plate (39), and the side of the mounting plate (39) is fixedly connected to the light rod (311).

3. The automatic material handling robot for an injection molding machine according to claim 2, characterized in that, The circumferential surface of the light rod (311) is slidably connected to the circumferential surface of the moving rod (310), and there are two mounting plates (39), which are respectively fixedly connected to both ends of the light rod (311).

4. The automatic material handling robot for an injection molding machine according to claim 3, characterized in that, The number of the grippers (37) is two, and they are symmetrical to each other along the vertical central axis of the threaded rod (32). The working surface of the grippers (37) is engaged with a rubber pad (312), and the surface of the rubber pad (312) is provided with anti-slip texture.

5. The automatic material handling robot for an injection molding machine according to claim 4, characterized in that, The device base (2) is equipped with a lubrication device (4). The lubrication device (4) includes a partition (41). The circumferential surface of the partition (41) is fixedly connected to the inner circumferential surface of the device base (2). An oil tank (42) is fixedly connected to the bottom of the partition (41). A transmission hose (43) is fixedly connected to the circumferential surface of the oil tank (42). A pressing rod (44) is slidably connected to the bottom of the oil tank (42). A transmission rod (45) is fixedly connected to the circumferential surface of the pressing rod (44). The side of the transmission rod (45) is slidably connected to a sliding block (46), the bottom of which is fixedly connected to the top of the partition (41). One end of the transmission rod (45) is fixedly connected to a moving block (47), and the inside of the moving block (47) is slidably connected to a crank (48). One end of the crank (48) is fixedly connected to a bevel gear shaft (49), and the other end of the double-ended motor (31) is fixedly connected to a bevel gear shaft (410). The bevel gear shaft (49) and the bevel gear shaft (410) mesh with each other.

6. The automatic material handling robot for an injection molding machine according to claim 5, characterized in that, The circumferential surface of the bevel gear shaft (49) is rotatably connected to a support plate (411), and the bottom of the support plate (411) is fixedly connected to the top of the partition plate (41).

7. The automatic material handling robot for an injection molding machine according to claim 6, characterized in that, The bottom of the support plate (411) is fixedly connected to the top of the partition plate (41), and one end of the transmission hose (43) is fixedly connected to the meshing point of the threaded sleeve (33) and the threaded rod (32).

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