Injection molding five-axis gripper guide mechanism

Abstract

The utility model relates to mechanical clamping technical field, concretely to a kind of injection moulding five-axis clamping jaw guiding mechanism, including side bracket, the bottom of one side of side bracket is provided with support plate, the bottom of support plate is fixedly installed with fixed block, and the bottom of fixed block is provided with adjusting mechanism, adjusting mechanism is provided with clamping jaw cylinder, floating mechanism that self-adapting fine adjustment clamping jaw cylinder position is provided between clamping jaw cylinder and adjusting mechanism, this injection moulding five-axis clamping jaw guiding mechanism, floating mechanism supports clamping jaw cylinder and constitutes floating type elastic support structure, each group clamping jaw cylinder can automatically adapt bushing position fine adjustment own position in the clamping process of multiple groups of bushing by clamping jaw, avoid the accumulation error to cause the bushing to be stuck in the process of placement or grabbing, adjusting mechanism can adjust the grabbing position of each group clamping jaw cylinder simultaneously, when multiple groups of clamping jaw work cooperatively, bushing position changes do not need manual participation adjustment, guarantee the grabbing efficiency under the continuous production state.

Description

Technical Field

[0001] This utility model relates to the field of mechanical clamping technology, specifically a five-axis gripper guide mechanism for injection molding. Background Technology

[0002] Injection molding is a highly efficient manufacturing process that involves injecting molten plastic into a mold cavity under high pressure, followed by cooling and solidification to form the finished product. During the process, plastic granules melt under the shearing action of a screw, and after high-pressure injection and cooling solidification, a finished injection molded product can be obtained. Five-axis grippers can replace manual labor to precisely grasp injection molded parts with undercuts and irregular shapes, greatly improving injection molding efficiency. However, existing five-axis grippers suffer from misalignment, and after mold repair, multiple bushings may not fit properly. The cumulative error between the repeatability of the five-axis grippers and the mold cavity tolerance can lead to bushing placement deviations, resulting in bushing jamming during placement or grasping. Furthermore, when multiple grippers work together, adjusting the bushing position requires manual adjustment of the gripper position, affecting grasping efficiency in continuous production. Therefore, we propose a five-axis gripper guiding mechanism for injection molding. Utility Model Content

[0003] To address the aforementioned technical problems, this application provides a five-axis injection molding gripper guide mechanism, including a side bracket. A support plate is provided at the bottom of one side of the side bracket. A triangular support to improve overall rigidity is symmetrically arranged between the support plate and the side bracket. Positioning pins are symmetrically arranged on both sides of the bottom of the support plate. A fixing block is fixedly installed at the bottom of the support plate, and an adjustment mechanism is provided at the bottom of the fixing block. A gripper cylinder is provided in the adjustment mechanism. A floating mechanism for adaptive fine-tuning the position of the gripper cylinder is provided between the gripper cylinder and the adjustment mechanism.

[0004] In some embodiments, the adjustment mechanism includes an adjustment motor fixed to the bottom of a fixed block, the output end of the adjustment motor being fixedly connected to a rotating bracket, and an adjustment cylinder being slidably connected in the rotating bracket.

[0005] In some embodiments, the adjusting cylinder is fixedly sleeved in a groove symmetrically opened on the top of the adjusting seat, and the adjusting seat is slidably connected in the rotating bracket.

[0006] In some embodiments, the floating mechanism includes a floating support fixed to the bottom of the adjusting seat, and a mounting seat is fitted inside the cavity of the floating support, the mounting seat being fixed to the top of the gripper cylinder.

[0007] In some embodiments, an elastic bracket is provided on the top of the mounting base, and a support rod is fixedly connected to the center of the top of the mounting base. The top of the support rod passes through the elastic bracket and a circular hole on the adjusting base and is fixedly connected to a limiting piece. The limiting piece is circular and its diameter is larger than the diameter of the circular hole on the adjusting base. The support rod is cylindrical and its diameter is smaller than the diameter of the circular hole on the adjusting base.

[0008] In some embodiments, a support cylinder is embedded in a groove on the side wall of the floating support, a floating spring is provided in the support cylinder, one end of the floating spring is fixed to a pressing steel ball, the pressing steel ball is slidably connected in the support cylinder, and the pressing steel ball presses against the mounting base.

[0009] This utility model has at least the following beneficial effects:

[0010] 1. This utility model suspends the mounting base equipped with gripper cylinders in the cavity of a floating support by using a support rod and a limiting plate. The diameter of the circular limiting plate is larger than the diameter of the circular hole on the adjusting seat, while the diameter of the cylindrical support rod is smaller than the diameter of the circular hole on the adjusting seat. This allows the entire mounting base to move under the limitation of the circular hole on the adjusting seat. The floating spring in the support cylinder provides supporting elastic force for the top pressing steel ball, so that the top pressing steel ball provides elastic support from four directions on the side wall of the mounting base, forming a floating elastic support structure. During the gripping of multiple sets of bushings, each set of gripper cylinders can automatically adapt to the bushing position and finely adjust its own position to avoid cumulative errors that cause the bushings to jam during placement or gripping.

[0011] 2. This utility model uses a fixed block to support and adjust the motor. As the motor drives the rotating bracket to rotate, the adjusting cylinder drives the adjusting seat to slide between the rotating brackets, which can adjust the clamping position of the bottom gripper cylinder. When multiple grippers work together, the bushing position can be changed without manual intervention, ensuring gripping efficiency in continuous production. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram showing the assembly position of the gripper cylinder in this utility model;

[0014] Figure 3 This is a three-dimensional view of part of the structure of this utility model;

[0015] Figure 4 This is an exploded view of part of the structure of this utility model;

[0016] Figure 5 This is a schematic diagram showing the location of the side slide in Embodiment 4 of this utility model.

[0017] In the diagram: 1. Side bracket; 2. Support plate; 3. Triangular support; 4. Positioning pin; 5. Fixing block; 6. Adjustment mechanism; 7. Gripper cylinder; 8. Floating mechanism; 51. Adjustment motor; 52. Rotating bracket; 53. Adjustment cylinder; 54. Adjustment seat; 81. Floating support; 82. Mounting seat; 83. Elastic bracket; 84. Support rod; 85. Limiting plate; 86. Support cylinder; 87. Floating spring; 88. Top pressure steel ball; 101. Side slide. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1:

[0020] Please see Figure 1-4 This utility model provides a technical solution: a five-axis gripper guide mechanism for injection molding, including a side bracket 1, a support plate 2 provided on the bottom of one side of the side bracket 1, triangular supports 3 symmetrically arranged between the support plate 2 and the side bracket 1 to improve overall rigidity, positioning pins 4 symmetrically arranged on both sides of the bottom of the support plate 2, a fixing block 5 fixedly installed on the bottom of the support plate 2, and an adjustment mechanism 6 provided at the bottom of the fixing block 5, a gripper cylinder 7 provided in the adjustment mechanism 6, and a floating mechanism 8 for adaptive fine-tuning the position of the gripper cylinder 7 provided between the gripper cylinder 7 and the adjustment mechanism 6. The side bracket 1 serves as the main support frame of the entire mechanism, providing a stable installation reference. Its structure is stable, ensuring overall rigidity and reducing the impact of vibration on gripping accuracy. The support plate 2 connects the side bracket 1 and the lower adjustment mechanism 6, providing... The mounting surface enhances the overall structural strength and ensures the stable operation of the gripper cylinder 7. The triangular supports 3 are symmetrically arranged between the support plate 2 and the side bracket 1 to improve bending and torsional resistance, prevent deformation under stress, and ensure structural stability during long-term use. The positioning pins 4 are symmetrically arranged on both sides of the bottom of the support plate 2 for initial positioning of the entire structure during use. The adjustment mechanism 6 is used to adjust the position of the gripper cylinder 7 to adapt to different workpieces or working conditions. The gripper cylinder 7 directly performs the gripping and releasing actions of the workpiece, with fast response and stable clamping force, suitable for high-speed automated production. The floating mechanism 8 is installed between the gripper cylinder 7 and the adjustment mechanism 6, allowing the gripper to adaptively fine-tune its position during gripping, compensate for workpiece or installation errors, improve the gripping success rate, and reduce damage to the gripper or workpiece caused by positioning deviation.

[0021] Example 2:

[0022] Please see Figure 1-4 The adjustment mechanism 6 includes an adjustment motor 51 fixed to the bottom of the fixed block 5. The output end of the adjustment motor 51 is fixedly connected to a rotating bracket 52. An adjustment cylinder 53 is slidably connected in the rotating bracket 52. The adjustment cylinder 53 is fixedly sleeved in the grooves symmetrically opened on the top of the adjustment seat 54. The adjustment seat 54 is slidably connected in the rotating bracket 52. The adjustment motor 51 is supported by the fixed block 5. During the process of the adjustment motor 51 driving the rotating bracket 52 to rotate, the adjustment cylinder 53 drives the adjustment seat 54 to slide between the rotating brackets 52, which can adjust the clamping position of the bottom gripper cylinder 7. When multiple sets of grippers work together, the bushing position can be changed without manual intervention, ensuring the gripping efficiency in continuous production.

[0023] Example 3:

[0024] Please see Figure 1-4 The floating mechanism 8 includes a floating support 81 fixed to the bottom of the adjusting seat 54. A mounting seat 82 is fitted inside the cavity of the floating support 81. The mounting seat 82 is fixed to the top of the gripper cylinder 7. An elastic bracket 83 is provided on the top of the mounting seat 82. A support rod 84 is fixedly connected to the center of the top of the mounting seat 82. The top of the support rod 84 passes through the elastic bracket 83 and a circular hole on the adjusting seat 54, and a limiting piece 85 is fixedly connected. The limiting piece 85 is circular, and its diameter is larger than the diameter of the circular hole on the adjusting seat 54. The support rod 84 has a cylindrical structure, and its diameter is smaller than the diameter of the circular hole on the adjusting seat 54. A support cylinder 86 is embedded in a groove on the side wall of the floating support 81. A floating spring 87 is provided in the support cylinder 86, and one end of the floating spring 87 is fixed to a pressing steel ball 88. The pressing steel ball 88 slides... The support cylinder 86 is dynamically connected to the support cylinder 86, and the pressing steel ball 88 presses against the mounting base 82. The mounting base 82, which is equipped with the gripper cylinder 7, is suspended in the cavity of the floating support 81 by the support rod 84 and the limiting plate 85. The diameter of the circular limiting plate 85 is larger than the diameter of the circular hole on the adjusting seat 54, while the diameter of the cylindrical support rod 84 is smaller than the diameter of the circular hole on the adjusting seat 54. This allows the entire mounting base 82 to move under the limitation of the circular hole on the adjusting seat 54. The floating spring 87 in the support cylinder 86 provides supporting elastic force for the pressing steel ball 88, so that the pressing steel ball 88 provides elastic support from four directions on the side wall of the mounting base 82, forming a floating elastic support structure. During the gripping of multiple sets of bushings, each set of gripper cylinder 7 can automatically adapt to the bushing position and finely adjust its own position to avoid cumulative errors that cause the bushing to jam during placement or gripping.

[0025] Example 4:

[0026] Please see Figure 1-5This utility model provides a technical solution: a five-axis gripper guide mechanism for injection molding, including a side support 1, a support plate 2 provided at the bottom of one side of the side support 1, triangular supports 3 symmetrically arranged between the support plate 2 and the side support 1 to improve overall rigidity, positioning pins 4 symmetrically arranged on both sides of the bottom of the support plate 2, a fixing block 5 fixedly installed at the bottom of the support plate 2, and an adjustment mechanism 6 provided at the bottom of the fixing block 5, a gripper cylinder 7 provided in the adjustment mechanism 6, and an adaptive fine-tuning float for adjusting the position of the gripper cylinder 7 provided between the gripper cylinder 7 and the adjustment mechanism 6. The moving mechanism 8 and the floating mechanism 8 include a floating support 81 fixed to the bottom of the adjusting seat 54. A mounting seat 82 is fitted inside the cavity of the floating support 81. The mounting seat 82 is fixed to the top of the gripper cylinder 7. An elastic bracket 83 is provided on the top of the mounting seat 82. A support rod 84 is fixedly connected to the center of the top of the mounting seat 82. The top of the support rod 84 passes through the elastic bracket 83 and a circular hole on the adjusting seat 54 and is fixedly connected to a limiting piece 85. A support cylinder 86 is embedded in a groove on the side wall of the floating support 81. A [missing information - likely a device or component] is provided in the support cylinder 86. A floating spring 87 is provided, with one end fixed to a pressing steel ball 88. The pressing steel ball 88 is slidably connected in a support cylinder 86 and presses against the mounting base 82. A side slide rail 101 is added to the above structure. The side slide rail 101 is formed on the side wall of the mounting base 82, and all the pressing steel balls 88 press against it. The side slide rail 101 provides a precise rolling and sliding pressing path for the pressing steel balls 88, ensuring that the pressing force of the steel balls on the mounting base 82 is evenly distributed on the contact surface of the side slide rail 101, avoiding localized pressure. The stress concentration in the part improves the durability of the floating mechanism 8. The geometric constraint of the side slide 101 restricts the longitudinal movement of the mounting base 82, ensuring that the gripper cylinder 7 floats and fine-tunes in the horizontal direction, preventing swaying or jamming. The top pressure steel ball 88 rolls in contact within the side slide 101, which reduces wear compared to direct sliding friction without a slide and maintains floating sensitivity. At the same time, the rebound force of the floating spring 87 is transmitted more smoothly through the steel ball, significantly improving the reliability, accuracy and life of the floating mechanism 8, making the gripper cylinder 7 more stable and smooth during adaptive fine-tuning.

Claims

1. An injection molding five-axis gripper guide mechanism comprising a side bracket (1), characterized in that: A support plate (2) is provided on the bottom of one side of the side bracket (1). A triangular support (3) to improve the overall rigidity is symmetrically provided between the support plate (2) and the side bracket (1). Positioning pins (4) are symmetrically provided on both sides of the bottom of the support plate (2). A fixing block (5) is fixedly installed on the bottom of the support plate (2). An adjustment mechanism (6) is provided on the bottom of the fixing block (5). A gripper cylinder (7) is provided in the adjustment mechanism (6). A floating mechanism (8) for adaptive fine adjustment of the position of the gripper cylinder (7) is provided between the gripper cylinder (7) and the adjustment mechanism (6).

2. The five-axis injection-molding jaw guide mechanism of claim 1, wherein: The adjustment mechanism (6) includes an adjustment motor (51) fixed to the bottom of the fixed block (5), and a rotating bracket (52) is fixedly connected to the output end of the adjustment motor (51). An adjustment cylinder (53) is slidably connected in the rotating bracket (52).

3. The five-axis injection-molding jaw guide mechanism of claim 2, wherein: The regulating cylinder (53) is fixedly sleeved in the grooves symmetrically opened on the top of the regulating seat (54), and the regulating seat (54) is slidably connected in the rotating bracket (52).

4. The five-axis injection-molding jaw guide mechanism of claim 1, wherein: The floating mechanism (8) includes a floating support (81) fixed to the bottom of the adjusting seat (54), and a mounting seat (82) is sleeved in the cavity inside the floating support (81). The mounting seat (82) is fixed to the top of the gripper cylinder (7).

5. The injection molding five-axis jaw guide mechanism of claim 4, wherein: The top of the mounting base (82) is provided with an elastic bracket (83), and a support rod (84) is fixedly connected to the center of the top of the mounting base (82). The top of the support rod (84) passes through the elastic bracket (83) and the round hole on the adjusting seat (54) and is fixedly connected to a limiting piece (85). The limiting piece (85) is circular, and the diameter of the limiting piece (85) is larger than the diameter of the round hole on the adjusting seat (54). The support rod (84) is cylindrical, and the diameter of the support rod (84) is smaller than the diameter of the round hole on the adjusting seat (54).

6. The injection molding five-axis gripper guide mechanism according to claim 4, characterized in that: A support cylinder (86) is embedded in a groove on the side wall of the floating support (81). A floating spring (87) is provided in the support cylinder (86), and one end of the floating spring (87) is fixed on a pressing steel ball (88). The pressing steel ball (88) is slidably connected in the support cylinder (86) and presses against the mounting base (82).

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