A rotary self-resetting spring gripper

Abstract

This invention provides a rotary self-resetting spring gripper. The outer edge of the rotary table has several clamping slots, and fan-shaped cam blocks are spaced apart on the outer diameter of the rotary table portion. Several spring grippers corresponding to the clamping slots are installed near the outer edge of the rotary table. Each spring gripper includes a Y-shaped claw body and a spring. A roller is located at the front end of the Y-shaped claw body, and the rear end of the Y-shaped claw body is connected to the spring. The other end of the spring is mounted on the rotary table near the axis of the Y-shaped claw body. When the roller contacts the fan-shaped cam block, the gripper is in an open state. When the roller leaves the fan-shaped cam block, the spring pulls the Y-shaped claw body to rotate towards the slot, clamping the material in the slot. This invention uses fan-shaped cam blocks to open and close the spring gripper at a designated position. Compared to the traditional method of using electrical signals to control the opening and closing of the gripper, this invention uses pure mechanical drive, resulting in a low failure rate, reduced procurement costs, and easier installation, maintenance, and debugging.

Description

Technical Field

[0001] This invention relates to a rotary feeding mechanism, specifically to a rotary self-resetting spring gripper. Background Technology

[0002] A feeding mechanism is a material handling machine that continuously transports materials along a certain route. Conveying machines include various types such as belt conveyors, screw conveyors, and bucket elevators. Conveying mechanisms that use turntables to drive product transmission are also a commonly used type.

[0003] In the assembly of certain products, a turntable is needed to clamp and fix the material in a holding position, and then release the material after leaving the holding position for easy picking or feeding. The usual method is to control the opening and closing of electronic grippers at specific positions via electrical signals. However, due to the high cost and susceptibility of electronic components, as well as the high debugging costs, their use and promotion are somewhat limited. Summary of the Invention

[0004] The present invention provides a rotary self-resetting spring gripper, including a rotary disk, the outer edge of which is provided with a plurality of clamping opening slots, and fan-shaped cam blocks are provided at intervals on the outer diameter of the rotary disk portion;

[0005] Several spring grippers corresponding to the clamping opening slots are installed near the outer edge of the turntable. The spring grippers include a Y-shaped claw body and a spring. A roller is provided at the front end of the Y-shaped claw body, and the rear end of the Y-shaped claw body is connected to the spring. The other end of the spring is installed on the turntable near the axis of the Y-shaped claw body.

[0006] When the roller contacts the sector-shaped cam block, the gripper is in the open state. When the roller leaves the sector-shaped cam block, the spring pulls the Y-shaped claw body to rotate in the direction of the opening slot to clamp the material in the opening slot.

[0007] Furthermore, the Y-shaped claw body has a long and a short fork at its front end. The end of the long fork is provided with a roller, and the short fork is provided with a first clamping notch on the other side of the long fork. The first clamping notch is used to press the outer surface of the material in the clamping opening groove.

[0008] Furthermore, an auxiliary clamping arm higher than the short fork is fixedly installed on the upper surface of the long fork. The end of the auxiliary clamping arm extends toward the end of the short fork, and the end of the auxiliary clamping arm is provided with a second clamping notch on the same side as the first clamping notch.

[0009] Furthermore, spring grippers are mounted on the lower surface of the turntable, which is provided with several guide grooves, and each auxiliary gripping arm is slidably disposed within the guide grooves.

[0010] Furthermore, a sector-shaped limiting plate is provided on the outer periphery of the turntable, which does not overlap with the sector-shaped cam block. A gap is left between the sector-shaped limiting plate and the outer edge of the turntable. Openings are left at both ends of the sector-shaped limiting plate and the sector-shaped cam block as the turntable discharge port and the turntable discharge outlet.

[0011] The advantages of this invention are:

[0012] (1) A fan-shaped cam block is used to open and close the spring gripper at a specified position. Compared with the traditional method of using electrical signals to control the opening and closing of the gripper, this invention uses pure mechanical drive, which has a low failure rate, reduces procurement costs, and is also more convenient for installation, maintenance and debugging.

[0013] (2) The front end of the Y-shaped claw body is equipped with a roller that cooperates with the fan-shaped cam block. The rolling friction of the roller drives the spring claw to open and close, making the opening and closing of the spring claw smoother.

[0014] (3) An auxiliary clamping arm higher than the short fork is fixedly installed on the upper surface of the long fork. The short fork and the auxiliary clamping arm simultaneously press the material at different heights, making the clamping effect more stable.

[0015] (4) A fan-shaped limiting plate is provided around the turntable to prevent the material from falling off due to insufficient clamping force during the rotation of the turntable. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A top view of a rotary self-resetting spring gripper provided by the present invention;

[0018] Figure 2 A top view of a single spring gripper;

[0019] Figure 3 A 3D view of a single spring gripper;

[0020] Figure 4 This is a schematic diagram of a turntable with two spring grippers. Detailed Implementation

[0021] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0022] To fully understand this invention, detailed steps and structures will be presented in the following description to illustrate the technical solution of this invention. Preferred embodiments of the invention are described in detail below; however, in addition to these detailed descriptions, the invention may have other embodiments.

[0023] Reference Figure 1-4 As shown, the present invention provides a rotary self-resetting spring gripper. The outer edge of the rotary disk 3001 is provided with a plurality of clamping opening slots 3001-1, and a fan-shaped cam block 3002 is provided on a portion of the outer diameter of the rotary disk 3001. A gap is left between the fan-shaped cam block 3002 and the outer edge of the rotary disk 3001.

[0024] Several spring grippers 3004, corresponding to the clamping opening slots 3001-1, are installed near the outer edge of the turntable 3001. Each spring gripper 3004 includes a Y-shaped claw body 3004-1 and a spring 3004-6. The front end of the Y-shaped claw body 3004-1 has a long and a short fork. The end of the long fork 3004-2 is equipped with a roller 3004-4. The short fork 3004-3 has a first clamping notch 3004-31 on the other side relative to the long fork 3004-2. The first clamping notch 3004-31 is used to press against the outer surface of the material inside the clamping opening slots 3001-1. The rear end of the Y-shaped claw body 3004-1 is connected to the spring 3004-6. The other end of the spring 3004-6 is installed on the turntable 3001 near the axis of the Y-shaped claw body 3004-1.

[0025] When the roller 3004-4 contacts the sector cam block 3002, the gripper 3004 is in the open state. When the roller 3004-4 leaves the sector cam block 3002, the spring 3004-6 pulls the Y-shaped claw body 3004-1 to rotate in the direction of the opening slot to clamp the material in the opening slot 3001-1.

[0026] An auxiliary clamping arm 3004-5, higher than the short fork portion 3004-3, is fixedly mounted on the upper surface of the long fork portion 3004-2. The end of the auxiliary clamping arm 3004-5 extends towards the end of the short fork portion 3004-3, and the end of the auxiliary clamping arm 3004-5 is provided with a second clamping notch 3004-51 on the same side as the first clamping notch 3004-31. In the rotation direction, both the first clamping notch 3004-31 and the second clamping notch 3004-51 are located on the front side of the Y-shaped claw body 3004-1. By simultaneously pressing the material at different heights through the short fork portion 3004-3 and the auxiliary clamping arm 3004-5, the clamping effect becomes more stable.

[0027] As a preferred option, the spring gripper is mounted on the lower surface of the turntable 3001. The turntable 3001 is provided with several guide grooves 3005 for accommodating auxiliary gripping arms 3004-5 that are higher than the Y-shaped gripper body 3004-1. Each auxiliary gripping arm 3004-5 can slide within the guide groove 3005.

[0028] A sector-shaped limiting plate 3003, which does not overlap with the sector-shaped cam block 3002, is provided around the turntable 3001. A gap is left between the sector-shaped limiting plate 3003 and the outer edge of the turntable 3001. The function of the sector-shaped limiting plate 3003 is to prevent the material from falling off due to the failure of the spring gripper during the rotation of the turntable. Openings are provided at both ends of the sector-shaped limiting plate 3003 and the sector-shaped cam block 3002 as the turntable feed port 3006 and the turntable discharge port 3007, respectively used for feeding and discharging materials from the turntable.

[0029] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the present invention. This does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention's technical solutions still fall within the protection scope of the present invention.

Claims

1. A rotary self-resetting spring gripper, comprising a rotary disk (3001), characterized in that, The turntable (3001) has a plurality of clamping opening slots (3001-1) on its outer edge, and fan-shaped cam blocks (3002) are provided at intervals on the outer diameter of a portion of the turntable (3001). A fan-shaped limiting plate (3003) that does not overlap with the fan-shaped cam blocks (3002) is provided on the periphery of the turntable (3001). Several spring grippers (3004) corresponding to the clamping opening slots (3001-1) are installed near the outer edge of the turntable (3001). Each spring gripper (3004) includes a Y-shaped claw body (3004-1) and a spring (3004-6). The front end of the Y-shaped claw body (3004-1) is provided with a roller (3004-4), and the rear end of the Y-shaped claw body (3004-1) is connected to the spring (3004-6). The other end of the spring (3004-6) is installed on the turntable (3001) near the axis of the Y-shaped claw body (3004-1). When the roller (3004-4) contacts the fan-shaped cam block (3002), the gripper (3004) is in the open state. When the roller (3004-4) leaves the fan-shaped cam block (3002), the spring (3004-6) pulls the Y-shaped claw body (3004-1) to rotate in the direction of the opening slot to clamp the material (1) in the opening slot (3001-1); The Y-shaped claw body (3004-1) has a long and a short fork at its front end. The long fork (3004-2) has a roller (3004-4) at its end. The short fork (3004-3) has a first clamping notch (3004-31) on the other side relative to the long fork (3004-2). The first clamping notch (3004-31) is used to press the outer surface of the material in the clamping opening groove (3001-1). An auxiliary clamping arm (3004-5) higher than the short fork (3004-3) is fixedly installed on the upper surface of the long fork (3004-2). The end of the auxiliary clamping arm (3004-5) extends toward the end of the short fork (3004-3), and the end of the auxiliary clamping arm (3004-5) is provided with a second clamping notch (3004-51) on the same side as the first clamping notch (3004-31). Spring grippers are installed on the lower surface of the turntable (3001). The turntable (3001) is provided with several guide grooves (3005), and each auxiliary gripping arm (3004-5) is slidably disposed in the guide groove (3005).

2. The rotary self-resetting spring gripper as described in claim 1, characterized in that, A gap is left between the sector-shaped limiting plate (3003) and the outer edge of the turntable (3001). Openings are left between the two ends of the sector-shaped limiting plate (3003) and the sector-shaped cam block (3002) as the turntable feed port (3006) and the turntable discharge port (3007).

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