Automatic clamping and conveying device for pin mold

Abstract

An automatic clamping and conveying device for a pin mold comprises a frame and clamping mechanisms arranged on the two sides of the frame. The frame comprises a connecting plate and a mounting plate. A connecting piece is arranged on the portion, close to one end of the mounting plate, of the connecting plate, mounting grooves are formed in the four corners of the mounting plate correspondingly, and each clamping mechanism comprises two pairs of clamping air cylinders arranged in the mounting grooves and feeding clamping jaws arranged at the movable ends of the two clamping air cylinders correspondingly. The mounting plates are arranged at the two ends of the connecting plate respectively. And the connecting plate and the mounting plate are both provided with a plurality of lightening holes, and the hole positions are reasonably distributed, so that the loss of structural integrity caused by material removal is reduced while the weight is reduced, and the load of the mechanical arm is reduced. At least two pairs of clamping air cylinders are arranged on the mounting plate, so that the device can feed or discharge four dies at a time, the production efficiency is improved, and the time cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical automation, in particular to an automatic clamping and transmission device for a pin mold. Background Art

[0002] In the field of automation, traditional loading and unloading technologies often rely on manual operation, which presents several significant drawbacks. Manual operations are relatively slow and cannot meet the high efficiency demands of modern production lines. Furthermore, manual operations carry a certain risk of human error, which can lead to unstable product quality or safety accidents. Furthermore, long hours of repetitive work increase worker fatigue and the risk of injury, while increasing labor costs also drive up business operating costs.

[0003] Chinese patent CN201620908750.3 discloses a fully automated metal parts processing system. A conveyor unit with a circular transmission path is located on one side of the robot. Multiple carriers are evenly spaced and fixed to the conveyor unit. Driven by the conveyor unit, the carriers perform a step-by-step circular rotation, with pauses during stepping corresponding to the feeding or unloading stations. An automatic feeding assembly and a gripping mechanism are located at the corresponding feeding stations. An injection molding machine is located on the other side of the robot, with injection molds installed. The robot is equipped with a gripper. This system utilizes an automatic feeding assembly to automatically deliver metal terminals, a gripping mechanism to sequence the metal parts and insert them onto the carriers, and a transmission unit to drive the carriers in a reciprocating rotation.

[0004] The above solution improves the loading and unloading efficiency by combining a robotic arm with a mold tooling. However, the existing mold tooling can often only load and unload a single mold at a time. If multiple molds are installed on the existing mold tooling at one time, the mold tooling will be too heavy, causing excessive load on the robotic arm and reducing the service life of the robotic arm. Utility Model Content

[0005] In view of this, the present invention provides an automatic clamping and transmission device for a pin mold to solve the above technical problems.

[0006] An automatic clamping and transport device for pin molds comprises a frame and two sets of clamping mechanisms disposed on either side of the frame. The frame includes at least two connecting plates and two mounting plates disposed at either end of the connecting plates. A connecting member is disposed on the connecting plate near one end of the mounting plate. Each of the four corners of the mounting plate has a mounting slot. Each set of clamping mechanisms comprises two pairs of clamping cylinders disposed in the mounting slots and two loading jaws disposed on the movable ends of the two clamping cylinders.

[0007] Furthermore, every two connecting plates are arranged parallel to each other.

[0008] Furthermore, the length of the connecting plate is less than or equal to the width of the mounting plate.

[0009] Furthermore, a plurality of weight-reducing holes are arranged at intervals along the length of the connecting plate.

[0010] Furthermore, the center point of the weight-reducing hole is located on the central axis of the length direction of the connecting plate.

[0011] Furthermore, a plurality of weight-reducing holes are arranged at intervals on the mounting plate.

[0012] Furthermore, the mounting groove is communicated with the long side of the mounting plate.

[0013] Furthermore, the central axes of the two installation grooves that are close to each other are aligned with the long side of the connecting plate located at one installation end.

[0014] Furthermore, a feeding cylinder may be provided between the two clamping cylinders.

[0015] Furthermore, a stripping clamp is provided at one end of the blanking cylinder.

[0016] Compared with the prior art, the present invention provides a self-clamping and transmission device for pin molds by respectively setting a mounting plate at both ends of the connecting plate. A plurality of weight-reducing holes are set on both the connecting plate and the mounting plate. By rationally distributing the holes, the weight is reduced while reducing the loss of structural integrity caused by removing materials, and the load on the robot arm is reduced. At least two pairs of clamping cylinders are respectively set on the mounting plates, so that the device can load or unload four molds at a time. A unloading cylinder is set between the two pairs of clamping cylinders on one side, and the workpiece after injection molding can be clamped to the assembly line while the mold is replaced, eliminating the independent unloading step, improving production efficiency, and reducing time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an automatic clamping and transmission device for a pin mold provided by the utility model.

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the automatic clamping and transmission device for pin molds from another perspective.

[0019] Figure 3 for Figure 1 A schematic structural diagram of a connecting plate of an automatic clamping and transmission device for a pin mold.

[0020] Figure 4 for Figure 1A schematic structural diagram of a mounting plate of an automatic clamping and transmission device for a pin mold. DETAILED DESCRIPTION

[0021] The following is a further detailed description of specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the scope of protection of the present invention.

[0022] like Figures 1 to 4 , which is a schematic structural diagram of an automatic clamping and transporting device for a pin mold provided by the present invention. The automatic clamping and transporting device for a pin mold comprises a frame 10 and two sets of clamping mechanisms 20 disposed on either side of the frame 10. It is conceivable that the automatic clamping and transporting device for a pin mold may also include other functional structures, such as fasteners, gaskets, etc., which are well known to those skilled in the art and will not be described in detail here.

[0023] The frame 10 includes at least two connecting plates 11 and two mounting plates 12 disposed at either end of the connecting plates 11. The connecting plates 11 and mounting plates 12 are disposed perpendicular to each other and, when combined, form the frame 10. When there are two or more connecting plates 11, one connecting plate 11 is connected to each end of the mounting plate 12.

[0024] Each pair of connecting plates 11 is arranged parallel to each other, ensuring balanced force on each connecting plate 11. The connecting plates 11 are screwed to the mounting plate 12 to ensure the overall structural strength of the frame 10. The length of each connecting plate 11 is less than or equal to the width of the mounting plate 12. The thickness of each connecting plate 11 is at least 10 mm, ensuring sufficient strength.

[0025] A connecting member 13 is provided on the connecting plate 11 near one end of the mounting plate 12. The connecting member 13 is screwed to the connecting plate 11. The other end of the connecting member 13 is connected to a robotic arm (not shown), so that the robotic arm directly drives the frame 10 to move through the connecting member 13.

[0026] The connecting plate 11 is provided with multiple weight-reducing holes 14 spaced apart along its length to reduce its weight, thereby reducing the load on the robotic arm and enabling it to grasp the frame 10 and rotate flexibly. The center of each weight-reducing hole 14 lies along the longitudinal axis of the connecting plate 11, ensuring that the overall weight distribution of the connecting plate 11 is uniform while reducing its weight. A notch 15 can also be provided in the middle of each side of the connecting plate 11 to further reduce its weight.

[0027] The outer contour of the mounting plate 12 is rectangular and the thickness of the mounting plate 12 is at least 12 mm, thereby improving its own strength and rigidity, as well as its load-bearing capacity.

[0028] The mounting plate 12 is also provided with a plurality of weight-reducing holes 14 at intervals, and the weight-reducing holes 14 on the mounting plate 12 are provided in the middle area of ​​the mounting plate 12 to avoid conflicts with the installation position of the clamping mechanism 20, thereby reducing the deformation of the frame 10 due to its own weight when installing the clamping mechanism 20 and clamping the tooling mold, so that the robot arm can maintain high agility and accuracy after grabbing the frame 10. The shape of the weight-reducing holes 14 can be designed according to actual needs. In this embodiment, the weight-reducing holes 14 provided on the connecting plate 11 are waist-shaped holes and round holes; the weight-reducing holes 14 provided on the mounting plate 12 are waist-shaped holes. It is conceivable that when the connecting plate 11 is connected to the connecting member 13, the weight-reducing holes 14 located in the middle area of ​​the connecting plate 11 can be eliminated, so that the middle area of ​​the connecting plate 11 is a whole solid plate, which can be better screwed and fixed to the connecting member 13.

[0029] Each of the four corners of the mounting plate 12 is provided with a mounting slot 16, which facilitates the quick positioning of the clamping mechanism 20. The mounting slots 16 communicate with the long sides of the mounting plate 12, increasing its compatibility and accommodating clamping mechanisms 20 of varying specifications while also reducing the weight of the mounting plate 12. The central axes of two closely spaced mounting slots 16 align with the long sides of the connecting plate 11 at one end of the mounting plate 12, providing support for the clamping mechanism 20.

[0030] Each of the clamping mechanisms 20 includes two pairs of clamping cylinders 21 disposed in the mounting slots 16 , and two feeding clamping jaws 22 respectively disposed on the movable ends of the two clamping cylinders 21 .

[0031] The clamping cylinder 21 is screwed to the mounting slot 16. A rubber strip 23 is provided on the clamping surface of the loading jaw 22. This rubber strip 23 increases friction when the loading jaw 22 clamps the tooling mold and prevents scratches on the tooling mold. The clamping cylinder 21 is connected to an external air pump via a pipe. The air pump drives the clamping cylinder 21, which in turn drives the loading jaw 22 to open and close to clamp the mold. The working principle of the clamping cylinder 21 is conventional and will not be described here.

[0032] A feeding cylinder 24 is also provided between the two clamping cylinders 21 on one end face. A stripping clamp 25 is provided at one end of the feeding cylinder 24. The area where the feeding cylinder 24 is installed is also provided with the installation groove 16, so that the operator can directly identify it visually during installation. The feeding cylinder 24 is also driven by a pipeline and an air pump to assist in subsequent processing. The installation groove 16 for installing the two feeding cylinders 24 is connected to the short side of the mounting plate 12 to increase compatibility and reduce weight. The feeding cylinder 24 is connected to an external air pump through a pipeline, and the feeding cylinder 24 is driven by the air pump to operate, thereby driving the stripping clamp 25 to open and close to clamp the workpiece. The working principle of the feeding cylinder 24 is the existing technology, so it will not be described here.

[0033] The stripping jaws 25 consist of two staggered jaw plates 251 and two pairs of jaws 252 arranged at the ends of the jaw plates 251. The two jaw plates 251 are respectively arranged at the two movable ends of the unloading cylinder 24. The two ends of the jaw plates 251 are bent 90 degrees, and a baffle 253 is provided in the middle of the jaw plates 251, biased towards one end. The jaws 252 are used to be inserted into the workpiece after injection molding. When the unloading cylinder 24 is ventilated and opened outward, it drives the two jaw plates 251 to open outward, causing the baffle 253 to contact one end of the jaw plates 251. At this time, a gap is generated between the two jaws 252 as the jaw plates 251 move, so that the end faces of the two sides of the jaws 252 contact the inner end face of the workpiece. Finally, the workpiece is lifted up by a robotic arm (not shown) and removed from the mold.

[0034] During use, the automatic gripping and transporting device is connected to a six-axis robotic arm. First, the six-axis robotic arm uses the loading jaws 22 on the side without the stripping jaws 25 to grip the mold to be injected, and then places the mold into the injection molding machine. Next, the automatic gripping and transporting device is flipped over, and the stripping jaws 25 are used to grip the molded workpiece from the mold. Simultaneously, the loading jaws 22 grip the mold after injection molding. Finally, the molded workpiece is gripped and transported to the assembly line, and the gripped mold after injection molding is placed on a mold processing table (not shown).

[0035] Compared with the prior art, the present invention provides a self-clamping and transmission device for pin molds by respectively setting a mounting plate 12 at both ends of the connecting plate 11. A plurality of weight-reducing holes are set on both the connecting plate 11 and the mounting plate 12. By rationally distributing the holes, the weight is reduced while reducing the loss of structural integrity caused by removing materials, and the load on the robotic arm is reduced. At least two pairs of the clamping cylinders 21 are respectively set on the mounting plate 12, so that the device can load or unload four molds at a time. A unloading cylinder 24 is set between the two pairs of the clamping cylinders 21 on one side, and the workpiece after injection molding can be clamped to the assembly line while the mold is replaced, eliminating the independent unloading step, improving production efficiency, and reducing time costs.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. An automatic clamping and transporting device for a pin mold, characterized in that: The automatic clamping and transmission device for the pin mold includes a frame and two groups of clamping mechanisms arranged on both sides of the frame. The frame includes at least two connecting plates and two mounting plates respectively arranged at both ends of the connecting plates. A connecting piece is provided on the connecting plate near one end of the mounting plate. A mounting groove is respectively provided at the four corners of the mounting plate. Each group of the clamping mechanisms includes two pairs of clamping cylinders arranged in the mounting grooves and two loading claws respectively provided on the movable ends of the two clamping cylinders.

2. The automatic clamping and transporting device for a pin mold according to claim 1, characterized in that: Every two connecting plates are arranged parallel to each other.

3. The automatic clamping and transporting device for a pin mold according to claim 1, characterized in that: The length of the connecting plate is less than or equal to the width of the mounting plate.

4. The automatic clamping and transporting device for a pin mold according to claim 1, characterized in that: A plurality of weight-reducing holes are arranged at intervals on the connecting plate.

5. The automatic clamping and transporting device for a pin mold according to claim 4, characterized in that: The center point of the weight-reducing hole is located on the central axis of the connecting plate in the length direction.

6. The automatic clamping and transporting device for a pin mold according to claim 1, characterized in that: A plurality of weight-reducing holes are arranged at intervals on the mounting plate.

7. The automatic clamping and transporting device for a pin mold according to claim 1, characterized in that: The mounting groove is communicated with the long side of the mounting plate.

8. The automatic clamping and transporting device for a pin mold according to claim 1, wherein: The central axes of the two installation grooves that are close to each other are aligned with the long side of the connecting plate located at one installation end.

9. The automatic clamping and transporting device for a pin mold according to claim 1, characterized in that: A feeding cylinder can also be arranged between the two clamping cylinders.

10. The automatic clamping and transporting device for a pin mold according to claim 9, characterized in that: One end of the blanking cylinder is provided with a stripping clamp.

Images