A discharge gripper robot for an injection molding machine

Abstract

The utility model belongs to tooling clamping technical field especially a kind of discharge clamping manipulator for injection molding machine, including injection molding machine machine tool, the outside fixed mounting of injection molding machine machine tool has three-axis mobile mechanical arm, the lower surface of the Z-axis arm of three-axis mobile mechanical arm is provided with multi-station clamping mechanism, the multi-station clamping mechanism includes the jaw of side by side arrangement, multiple the jaw synchronous action, and multiple workpieces are synchronously clamped. The discharge clamping manipulator for injection molding machine is parallelly connected by multiple jaws, cooperates with driving cylinder and linkage mechanism, realizes the synchronous clamping of multiple workpieces in one action, solves the efficiency bottleneck that traditional single-station manipulator needs multiple back-and-forth fetching, simultaneously with single driving cylinder driving the driving plate covering all jaws, directly transmits power by linkage elbow, connecting rod, avoids multiple-stage redundant transmission, reduces action delay, improves response speed.

Description

Technical Field

[0001] This utility model relates to the field of tooling clamping technology, and in particular to a material discharge clamping robot for injection molding machines. Background Technology

[0002] Tooling, or process equipment, refers to the general term for all kinds of tools used in the manufacturing process. In the current production technology, when using injection molding to process new parts, the gripping and transfer of injection molded parts are often done manually. Manual methods are not only slow, but also prone to picking up too many or picking up the wrong parts. This undoubtedly results in a huge waste of manpower and material resources, and is prone to rework, which greatly reduces production efficiency.

[0003] Chinese patent CN217704550U discloses a gripping fixture for a material handling robot in an injection molding machine. The fixture is driven by two cylinders, which in turn drive a second connecting rod. The second connecting rod then drives a moving rod, which in turn drives the gripper to perform the action.

[0004] Although the above technical solutions have achieved basic automation, they still have the following significant shortcomings: the gripper needs to be driven by multiple transmission components such as a moving plate, a second connecting rod, and a moving rod, resulting in a redundant structure. It is also prone to asynchronous movements due to component wear. It can only achieve planar movement and lacks precise Z-axis positioning and rotation adjustment capabilities. It cannot adapt to deep cavity molds or workpieces that require posture adjustment. The gripper uses a rigid metal clamping surface, which is prone to damaging the surface of precision workpieces and lacks anti-slip buffer design. Therefore, the present application solves the shortcomings of the above technical problems. Utility Model Content

[0005] Based on the aforementioned technical problems, this utility model proposes a material ejection clamping robot for injection molding machines.

[0006] This utility model proposes a material handling robot for injection molding machines, including an injection molding machine tool. A three-axis moving robot arm is fixedly installed on the outside of the injection molding machine tool. A multi-station clamping mechanism is provided on the lower surface of the Z-axis arm of the three-axis moving robot arm. The multi-station clamping mechanism includes grippers arranged side by side. The multiple grippers move synchronously and clamp multiple workpieces synchronously.

[0007] Preferably, the multi-station clamping mechanism further includes a rotary motor fixedly connected to the lower surface of the Z-axis arm of the three-axis moving robotic arm, and a drive cylinder is fixedly connected to the lower surface of the rotating shaft of the rotary motor through a connecting block.

[0008] In order to achieve precise clamping of multiple workpieces and to enable them to move on the injection molding machine tool, the above technical solution uses a three-axis moving robotic arm to move the rotating motor on the X, Y, and Z axes. The three-axis moving robotic arm uses motors, gears, and racks set on the X, Y, and Z axes to drive the horizontal displacement of the corresponding parts. After the rotating motor moves to the target position, the drive cylinder can drive multiple grippers to perform the clamping action, and can control the clamped workpiece to rotate 360° until the material is unloaded.

[0009] Preferably, the multi-station clamping mechanism further includes a support beam fixedly connected to the lower surface of the drive cylinder body, a drive plate being provided on the lower surface of the support beam, and the lower surface of the piston rod of the drive cylinder being fixedly connected to the upper surface of the drive plate.

[0010] With the above technical solution, in order to control the synchronous movement of multiple grippers, the length of the drive plate covers the length of the multiple grippers in a line. The drive plate is adjusted in height by pushing or pulling the piston rod of the drive cylinder, thereby indirectly driving the multiple grippers to complete the clamping action, thus saving resources, time and effort.

[0011] Preferably, the outer surface of the support beam is linearly distributed and fixedly connected with portal-shaped rods, and the two ends of the multiple portal-shaped rods are symmetrically distributed and fixedly connected with support slide rods. The outer surface of the support slide rods is rotatably connected with linkage bend arms at intervals, and one side surface of the linkage bend arm is fixedly connected to one side surface of the gripper.

[0012] With the above technical solution, in order to drive the bending and clamping action of the gripper, the contact end of the linkage arm and the support slide rod is rotated to realize the opening and closing action of the linkage arm, thereby driving the connecting gripper to open and close to complete clamping or loosening.

[0013] Preferably, the multi-station clamping mechanism further includes H-shaped linkage plates that are fixedly connected to the surface of the drive plate at intervals, and connecting rods are respectively hinged to the inner surfaces of both ends of the linkage plate.

[0014] With the above technical solution, in order to drive the rotation and opening of the linkage arm, when the drive cylinder controls the height adjustment of the drive plate, it drives the height adjustment of multiple linkage plates, thereby realizing the synchronous movement of the connecting rod, which indirectly pulls the linkage arm to move.

[0015] Preferably, the inner surface of the connecting rod is hinged to the middle end surface near the linkage arm.

[0016] Through the above technical solution, in order to realize the linkage between the connecting rod and the linkage arm, the free end of the connecting rod is restricted to the outer surface of the linkage arm. Thus, when the height of the other end of the connecting rod is adjusted, the free end of the connecting rod can be driven to pull or push the linkage arm to open and close, thereby enabling the linkage arm to open and close the gripper.

[0017] Preferably, the gripper is composed of a rectangular aluminum alloy plate and a polyurethane groove clamping surface that fits against one side of it.

[0018] Through the above technical solution, in order to avoid damaging the workpiece surface, the aluminum alloy plates are easy to connect to achieve the clamping action, while the polyurethane groove clamping surface has high elasticity, buffering, wear resistance and anti-slip properties, thus enabling the workpiece to be clamped without damage.

[0019] The beneficial effects of this utility model are as follows: 1. By setting up a multi-station gripping mechanism, the efficiency bottleneck of traditional single-station robotic arms that require multiple round trips to pick up parts is solved. During the adjustment process, through the parallel design of multiple grippers, in conjunction with the drive cylinder and linkage mechanism, multiple workpieces can be gripped simultaneously in one action, solving the efficiency bottleneck of traditional single-station robotic arms that require multiple round trips to pick up parts. At the same time, a single drive cylinder drives the drive plate covering all grippers, and the power is directly transmitted through the linkage arm and connecting rod, avoiding multi-stage redundant transmission, reducing action delay, and improving response speed.

[0020] 2. By setting up a three-axis mobile robotic arm, it supports precise movement along the X / Y / Z axes, allowing it to penetrate deep cavity molds or complex layout areas. At the same time, by driving the clamping mechanism to rotate as a whole through a rotating motor, the workpiece posture can be flexibly adjusted to adapt to different mold discharge angle requirements, thus enhancing versatility. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a material ejection clamping robot for an injection molding machine according to the present invention; Figure 2 This utility model presents a three-axis moving robotic arm structure for a material ejection clamping robot for an injection molding machine. Figure 3 A perspective view of a portal-shaped rod structure for a material ejection clamping robot for an injection molding machine, as proposed in this utility model; Figure 4 This is a perspective view of a linkage curved arm structure for a material ejection clamping robot for an injection molding machine, as proposed in this utility model.

[0022] In the diagram: 1. Plastic injection molding machine tool; 2. Three-axis moving robotic arm; 3. Gripper; 4. Rotary motor; 5. Drive cylinder; 6. Support beam; 7. Drive plate; 8. Portal rod; 9. Support slide bar; 10. Linkage arm; 11. Linkage plate; 12. Connecting rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-4 A material handling manipulator for an injection molding machine includes an injection molding machine tool 1. A three-axis mobile manipulator 2 is fixedly mounted on the outside of the injection molding machine tool 1. A multi-station clamping mechanism is provided on the lower surface of the Z-axis arm of the three-axis mobile manipulator 2. The multi-station clamping mechanism includes grippers 3 arranged side by side. The multiple grippers 3 move synchronously and clamp multiple workpieces synchronously.

[0025] To achieve precise clamping of multiple workpieces and to enable them to move on the injection molding machine tool 1, the multi-station clamping mechanism also includes a rotary motor 4 fixedly connected to the lower surface of the Z-axis arm of the three-axis moving robotic arm 2. The lower surface of the rotating shaft of the rotary motor 4 is fixedly connected to a drive cylinder 5 via a connecting block. The three-axis moving robotic arm 2 enables the rotary motor 4 to move on the X, Y, and Z axes. The three-axis moving robotic arm 2 achieves horizontal displacement of the corresponding parts by cooperating with motors, gears, and racks set on the X, Y, and Z axes. After the rotary motor 4 moves to the target position, the drive cylinder 5 can drive multiple grippers 3 to perform clamping actions and can control the clamped workpiece to rotate 360° until the material is unloaded.

[0026] By setting up a three-axis mobile robotic arm 2, it supports precise movement along the X / Y / Z axes, allowing it to penetrate deep cavity molds or complex layout areas. At the same time, by driving the overall rotation of the clamping mechanism through the rotating motor 4, the workpiece posture can be flexibly adjusted to adapt to different mold discharge angle requirements, thus enhancing versatility.

[0027] In order to control the synchronous movement of multiple grippers 3, the multi-station clamping mechanism also includes a support beam 6 fixedly connected to the lower surface of the cylinder body of the drive cylinder 5. The lower surface of the support beam 6 is provided with a drive plate 7. The lower surface of the piston rod of the drive cylinder 5 is fixedly connected to the upper surface of the drive plate 7. The length of the drive plate 7 covers the length of the multiple grippers 3 in a line. The height of the drive plate 7 can be adjusted by pushing or pulling the piston rod of the drive cylinder 5, thereby indirectly driving the multiple grippers 3 to complete the clamping action, thus saving resources, time and effort.

[0028] To drive the bending clamping action of the gripper 3, the outer surface of the support beam 6 is linearly distributed and fixedly connected with portal rods 8. The two ends of the multiple portal rods 8 are symmetrically distributed and fixedly connected with support slide rods 9. The outer surface of the support slide rods 9 is rotatably connected with linkage arms 10 at intervals. One side surface of the linkage arm 10 is fixedly connected to one side surface of the gripper 3. By rotating the contact end of the linkage arm 10 with the support slide rod 9, the opening and closing action of the linkage arm 10 is realized, thereby driving the connecting gripper 3 to open and close to complete clamping or loosening.

[0029] In order to drive the rotation and opening of the linkage arm 10, the multi-station clamping mechanism also includes H-shaped linkage plates 11 that are fixedly connected to the surface of the drive plate 7 at intervals. Connecting rods 12 are respectively hinged to the inner surfaces of the two ends of the linkage plates 11. When the drive cylinder 5 controls the height adjustment of the drive plate 7, it drives the height adjustment of multiple linkage plates 11, thereby realizing the synchronous movement of the connecting rods 12, which indirectly pulls the linkage arm 10 to move.

[0030] In order to achieve linkage between the connecting rod 12 and the linkage arm 10, the inner surface of the connecting rod 12 is hinged to the middle surface near the linkage arm 10, and the free end of the connecting rod 12 is restricted to the outer surface of the linkage arm 10. Thus, when the height of the other end of the connecting rod 12 is adjusted, the free end of the connecting rod 12 can be driven to pull or push the linkage arm 10 to open and close, thereby enabling the linkage arm 10 to achieve the opening and closing of the gripper 3.

[0031] In order not to damage the workpiece surface, the gripper 3 is composed of a rectangular aluminum alloy plate and a polyurethane groove clamping surface that fits against one side. The aluminum alloy plate is easy to connect to achieve the clamping action, while the polyurethane groove clamping surface has high elasticity, cushioning, wear resistance and anti-slip properties, thus enabling the workpiece to be clamped without damage.

[0032] By setting up a multi-station clamping mechanism, the efficiency bottleneck of traditional single-station robotic arms requiring multiple round trips to pick up parts is solved. During the adjustment process, through the parallel design of multiple grippers 3, in conjunction with the drive cylinder 5 and the linkage mechanism, multiple workpieces can be clamped simultaneously in one action, solving the efficiency bottleneck of traditional single-station robotic arms requiring multiple round trips to pick up parts. At the same time, a single drive cylinder 5 drives the drive plate 7 covering all grippers 3, and the power is directly transmitted through the linkage arm 10 and the connecting rod 12, avoiding multi-stage redundant transmission, reducing action delay, and improving response speed.

[0033] Working principle: In a specific embodiment of this utility model, the three-axis mobile robotic arm 2 realizes the movement of the rotary motor 4 on the X, Y, and Z axes. After the rotary motor 4 moves to the target position, the drive cylinder 5 can drive multiple grippers 3 to perform clamping actions, and can control the clamped workpiece to rotate 360° until the material is unloaded. When gripping a workpiece, the gripper 3 pushes or pulls the drive plate 7 to adjust its height by driving the piston rod of the drive cylinder 5, thereby driving the height adjustment of multiple linkage plates 11 and realizing the synchronous action of the connecting rod 12. This indirectly pulls the linkage arm 10 to move, thereby driving the connecting gripper 3 to open and close to complete the gripping or releasing, so that the gripper 3 completes the gripping or releasing of the workpiece.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A material ejection clamping robot for an injection molding machine, comprising an injection molding machine tool (1), characterized in that: The injection molding machine tool (1) is externally fixedly equipped with a three-axis moving robotic arm (2). The lower surface of the Z-axis arm of the three-axis moving robotic arm (2) is provided with a multi-station clamping mechanism. The multi-station clamping mechanism includes clamps (3) arranged side by side. Multiple clamps (3) move synchronously and clamp multiple workpieces synchronously.

2. The material ejection clamping robot for an injection molding machine according to claim 1, characterized in that: The multi-station clamping mechanism also includes a rotary motor (4) fixedly connected to the lower surface of the Z-axis arm of the three-axis mobile robotic arm (2), and a drive cylinder (5) is fixedly connected to the lower surface of the rotating shaft of the rotary motor (4) through a connecting block.

3. The material ejection gripper for an injection molding machine according to claim 2, characterized in that: The multi-station clamping mechanism also includes a support beam (6) fixedly connected to the lower surface of the cylinder body of the drive cylinder (5). A drive plate (7) is provided on the lower surface of the support beam (6), and the lower surface of the piston rod of the drive cylinder (5) is fixedly connected to the upper surface of the drive plate (7).

4. The material ejection gripper for an injection molding machine according to claim 3, characterized in that: The outer surface of the support beam (6) is linearly distributed and fixedly connected with portal rods (8). The two ends of the multiple portal rods (8) are symmetrically distributed and fixedly connected with support slide rods (9). The outer surface of the support slide rods (9) is rotatably connected with linkage arms (10) at intervals. One side surface of the linkage arm (10) is fixedly connected to one side surface of the gripper (3).

5. The material ejection gripper for an injection molding machine according to claim 4, characterized in that: The multi-station clamping mechanism also includes H-shaped linkage plates (11) that are fixedly connected to the surface of the drive plate (7) at intervals, and connecting rods (12) are respectively hinged to the inner surfaces of both ends of the linkage plate (11).

6. The material ejection gripper for an injection molding machine according to claim 5, characterized in that: The inner surface of the connecting rod (12) is hinged to the middle end surface near the linkage arm (10).

7. The material ejection gripper for an injection molding machine according to claim 1, characterized in that: The gripper (3) is composed of a rectangular aluminum alloy plate and a polyurethane groove clamping surface that fits against one side of it.

Images