Quickly changeable automatic feeding tooling

Abstract

This utility model discloses a quick-change automatic feeding fixture, including a frame, a lower base plate, a frame body, an upper cover plate, and a feeding mechanism. The lower base plate is located on top of the frame, and the frame body is detachably mounted on the top surface of the lower base plate. A feeding cavity is formed in the middle of the frame body. The upper cover plate is detachably mounted on the top surface of the frame body. The upper cover plate has a first plate hole and a clearance hole. Several positioning rods are arranged around the edge of the first plate hole on the top surface of the upper cover plate. The feeding mechanism is located inside the feeding cavity. This utility model uses the feeding mechanism to continuously and accurately push the workpieces entering the feeding cavity through the first plate hole to directly below the clearance hole. Finally, a robotic arm removes the workpieces from the feeding cavity, replacing manual workpiece handling, reducing production intensity, and increasing production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, specifically to an automatic feeding fixture that allows for rapid shape change. Background Technology

[0002] Of the world's steel, 60-70% is sheet metal, most of which is produced through stamping. Automobile bodies, chassis, fuel tanks, radiator fins, boiler drums, container shells, and the silicon steel cores of motors and electrical appliances are all produced by stamping. Instruments, household appliances, bicycles, office machinery, and tableware also contain a large number of stamped parts. However, forming these products from sheet metal stamping requires further processes such as shaping, bending, drilling, and tapping.

[0003] The aforementioned products typically require high processing precision. To improve this precision, the current practice is to first fix the sheet metal stamping parts onto a corresponding loading fixture, and then use a robotic arm to pick up the stamping parts from the loading fixture and transfer them to the appropriate processing equipment for processing. However, during the process of the robotic arm picking up the sheet metal stamping parts, manual labor is required to continuously place the processed parts onto the loading fixture. This is not only inefficient and labor-intensive, but also prone to randomness, easily leading to inaccurate positioning of the sheet metal parts, thus affecting the processing precision of the product. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic feeding fixture that can be quickly changed, which not only has accurate positioning but also improves production efficiency, thereby solving the problems of low feeding efficiency and inaccurate workpiece positioning of existing fixtures mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A quick-change automatic feeding fixture includes a frame, a lower base plate, a frame body, an upper cover plate, and a feeding mechanism. The lower base plate is located on the top of the frame. The frame body is detachably mounted on the top surface of the lower base plate and has a feeding cavity formed in the middle of the frame body. The upper cover plate is detachably mounted on the top surface of the frame body and has a first plate hole and a clearance hole. The top surface of the upper cover plate is provided with a plurality of positioning rods surrounding the edge of the first plate hole. The feeding mechanism is located inside the feeding cavity.

[0007] Preferably, a second plate hole is provided on one side of the top surface of the push plate, and the shape and size of the second plate hole are the same as those of the first plate hole.

[0008] Preferably, the shape of the relief hole is the same as the shape of the hole in the second plate, and the diameter of the relief hole is larger than the diameter of the hole in the second plate.

[0009] Preferably, the feeding mechanism includes a slider movably disposed on the lower base plate, a pusher plate fixed on the slider and located in the feeding chamber, and a cylinder fixed on the lower base plate, wherein the piston rod of the cylinder is connected to the slider.

[0010] Preferably, the bottom plate has two symmetrically distributed guide grooves on its top surface, and each guide groove has an elongated hole along its length on its bottom wall.

[0011] Preferably, the slider includes a base portion disposed at the bottom of the lower base plate and guide portions symmetrically disposed on the base portion. The base portion is connected to the piston rod of the cylinder. The guide portions are T-shaped. The top end of the guide portions is movably disposed in the guide groove. The lower end of the guide portions passes through an elongated hole and is connected to the base portion.

[0012] Preferably, mounting holes are provided on both sides of the push plate, and a locking protrusion adapted to the mounting hole is formed on the top surface of the guide slide, and the locking protrusion is embedded in the mounting hole.

[0013] Preferably, the top height of the guide slide protrusion is higher than the top surface of the lower base plate, and a gap is preset between the bottom surface of the push plate and the top surface of the lower base plate.

[0014] Preferably, the four corners of the bottom plate, frame and top cover are provided with coaxial screw holes, and bolts are threaded into the screw holes.

[0015] Preferably, the top of the positioning rod is tapered.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: When the workpiece is fed into the feeding cavity of the frame through the first plate hole, the positioning rod surrounding the first plate hole accurately positions the workpiece stacked above the first plate hole directly above the first plate hole, so that the stacked workpiece accurately enters the feeding cavity through the first plate hole, improving the positioning accuracy; then, the feeding mechanism continuously pushes the workpiece entering the feeding cavity precisely to the area directly below the clearance hole, and finally, the robotic arm passes through the clearance hole to remove the workpiece from the guide groove, replacing manual workpiece handling, reducing production intensity and increasing production efficiency. Attached Figure Description

[0017] Figure 1 This is a perspective view of the automatic feeding fixture for quick model change according to this utility model;

[0018] Figure 2 This is an enlarged view of a partial structure of the automatic feeding fixture for quick model change of this utility model;

[0019] Figure 3 This is a top view of the automatic feeding fixture with quick-change capability of this utility model;

[0020] Figure 4This utility model Figure 3 Sectional view of mid-section AA;

[0021] Figure 5 This is an exploded view of the automatic feeding fixture for quick model change according to this utility model;

[0022] Figure 6 This is a perspective view of the feeding mechanism of this utility model;

[0023] Figure 7 This is an exploded view of the feeding mechanism of this utility model;

[0024] Figure 8 This is a perspective view of the slider of this utility model.

[0025] The following are the annotations in the attached diagram: 1. Frame; 2. Lower base plate; 21. Guide groove; 22. Long slot; 3. Frame body; 31. Feeding chamber; 4. Upper cover plate; 41. First plate hole; 42. Clearance hole; 5. Feeding mechanism; 51. Slider; 511. Base part; 512. Guide slide part; 513. Locking protrusion; 52. Push plate; 521. Second plate hole; 522. Mounting hole; 53. Cylinder; 6. Positioning rod; 7. Workpiece; 8. Bolt. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-4 An automatic feeding fixture with quick-change capability includes a frame 1, a lower base plate 2, a frame 3, an upper cover plate 4, and a feeding mechanism 5; the lower base plate 2 is located on top of the frame 1, and the frame 3 is detachably mounted on the top surface of the lower base plate 2. (See also...) Figure 6 The frame 3 has a feeding cavity 31 in the middle. The upper cover plate 4 is detachably installed on the top surface of the frame 3. The upper cover plate 4 has a first plate hole 41 and a clearance hole 42. The first plate hole 41 and the clearance hole 42 are arranged in a straight line. The top surface of the upper cover plate 4 is provided with a plurality of positioning rods 6 surrounding the edge of the first plate hole 41. A plurality of workpieces 7 are stacked between the plurality of positioning rods 6 and descend layer by layer into the first plate hole 41 and the feeding cavity 31. The feeding mechanism 5 is provided in the feeding cavity 31 and is used to push the workpieces 7 that descend layer by layer through the first plate hole 41 into the feeding cavity 31 to the clearance hole 42 directly below.

[0028] When the workpiece 7 is fed into the feeding chamber 31 of the frame 3 through the first plate hole 41, the positioning rod 6 surrounding the first plate hole 41 accurately positions the workpiece 7 stacked above the first plate hole 41 directly above the first plate hole 41, so that the stacked workpiece 7 accurately enters the feeding chamber 31 through the first plate hole 41, improving the positioning accuracy of the workpiece 7; then the feeding mechanism 5 continuously pushes the workpiece 7 that has entered the feeding chamber 31 precisely to the area directly below the clearance hole 42; finally, the robotic arm set on one side of the frame 1 removes the workpiece 7 from the feeding chamber 31, replacing manual handling of the workpiece 7, reducing production intensity and increasing production efficiency.

[0029] Please see Figure 4-6 The feeding mechanism 5 includes a slider 51 movably mounted on the lower base plate 2, a pusher plate 52 fixed on the slider 51 and located within the feeding chamber 31, and a cylinder 53 fixed on the lower base plate 2. The piston rod of the cylinder 53 is connected to the slider 51. In this embodiment, a second plate hole 521 is provided on one side of the top surface of the pusher plate 52. The shape and size of the second plate hole 521 are the same as those of the first plate hole 41.

[0030] Please see Figure 2 and Figure 6 During feeding, the workpiece 7 moves down layer by layer from the first plate hole 41 to the second plate hole 521. Then, the cylinder 53 drives the push plate 52 on the slider 51 to move along the length of the feeding cavity 31 until the second plate hole 521 of the push plate 52 moves directly below the clearance hole 42, so that the robot can accurately grasp it.

[0031] Please see Figure 2-3 The shape of the relief hole 42 is the same as that of the second plate hole 521, and the diameter of the relief hole 42 is larger than that of the second plate hole 521, so that the robot arm can reach into the relief hole 42 to remove the workpiece 7 from the second plate hole 521.

[0032] Please see Figure 7 The bottom plate 2 has two symmetrically distributed guide grooves 21 on its top surface. Each guide groove 21 has an elongated hole 22 along its length on its bottom wall. The slider 51 includes a base part 511 at the bottom of the bottom plate 2 and guide parts 512 symmetrically arranged on the base part 511. The base part 511 is connected to the piston rod of the cylinder 53. There are two guide parts 512, which are located at the two edges of the top surface of the base part 511 respectively.

[0033] Please refer to Figure 8. In this embodiment, the guide slide 512 is T-shaped. The top end of the guide slide 512 is movably disposed within the guide groove 21 and fixedly connected to the push plate 52. The lower end of the guide slide 512 passes through the elongated hole 22 and connects to the base part 511. During feeding, the guide slide 512 of the slider 51 is guided and limited by the guide groove 21 and the elongated hole 22, making the movement of the slider 51 more stable and accurate.

[0034] Please see 7 and Figure 8 The push plate 52 has mounting holes 522 on both sides. The top surface of the guide slide 512 protrudes upward to form a locking protrusion 513 that matches the mounting hole 522. The locking protrusion 513 is embedded in the mounting hole 522. In this embodiment, each guide slide 512 has two locking protrusions 513, for a total of four locking protrusions 513. The push plate 52 has four mounting holes 522 that match the locking protrusions 513, so that the push plate 52 is stably mounted on the guide slide 512 of the slider 51.

[0035] Please refer to 6. The top height of the protrusion 513 of the guide slide 512 is higher than the top surface of the lower base plate 2. There is a pre-set gap between the bottom surface of the push plate 52 and the top surface of the lower base plate 2 to avoid friction between the push plate 52 and the top surface of the lower base plate 2 when the push plate 52 moves in the feeding cavity 31 of the frame 3, thereby reducing the wear of the push plate 52 and the lower base plate 2 and reducing noise.

[0036] Please see Figure 2 In this embodiment, there are six positioning rods 6. The top of the positioning rod 6 is conical, and the conical shape has a certain guiding and positioning function, which makes it easier for the workpiece 7 to be placed from the top of the six positioning rods 6 into the space between the six positioning rods 6, thereby improving the loading efficiency.

[0037] Please see Figure 1 and Figure 4 The bottom plate 2, the frame 3, and the top cover plate 4 are all provided with coaxial screw holes at their four corners. Bolts 8 are threaded into the screw holes to fix the bottom plate 2, the frame 3, and the top cover plate 4 together.

[0038] When it is necessary to replace the push plate 52 and the top cover plate 4, simply unscrew the bolts 8 at the four corners of the bottom plate 2, the frame 3, and the top cover plate 4, remove the old push plate 52 and the top cover plate 4 from the frame 3, and then reinstall the new push plate 52 and the top cover plate 4. The installation is simple and convenient, and the interchangeability is strong. The top cover plate 4 and the push plate 52 are made according to the shape of different products so as to transport products of different shapes. During production, it is only necessary to install the changed top cover plate 4 and the push plate 52, thereby realizing quick changeover and meeting different production needs.

[0039] The working principle of this utility model's quick-change automatic feeding fixture is as follows: Please refer to... Figure 2 and Figure 6 The workpiece 7 is positioned between six positioning rods 6, forming several layers of stacked workpieces 7. During feeding, the cylinder 53 drives the slider 51, the push plate 52, and the workpiece 7 in the second plate hole 521 to move along the length of the feeding chamber 31 until the workpiece 7 moves directly below the clearance hole 42. Then, the robot arm removes the workpiece 7 from the second plate hole 521. Finally, the cylinder 53 drives the slider 51 and the push plate 52 to reset until the second plate hole 521 of the push plate 52 is aligned with the first plate hole 41 of the upper cover plate 4. At this time, the workpiece 7 in the first plate hole 41 moves down into the second plate hole 521. Then, the cylinder 53 drives the slider 51 and the push plate 52 to feed in the feeding chamber 31 again. This cycle is repeated so that the stacked workpieces 7 between the positioning rods 6 can move down layer by layer to the push plate 52 in the feeding chamber 31. Then, the push plate 52 transports the workpiece 7 to the clearance hole 42, thus completing the loading and feeding action.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-change automatic feeding fixture, comprising a frame (1), a lower base plate (2), a frame body (3), an upper cover plate (4), and a feeding mechanism (5), wherein the lower base plate (2) is disposed on the top of the frame (1), characterized in that: The frame (3) is detachably installed on the top surface of the bottom plate (2). A feeding cavity (31) is formed in the middle of the frame (3). The upper cover plate (4) is detachably installed on the top surface of the frame (3). The upper cover plate (4) has a first plate hole (41) and a clearance hole (42). The top surface of the upper cover plate (4) is provided with a plurality of positioning rods (6) surrounding the edge of the first plate hole (41). The feeding mechanism (5) is located in the feeding cavity (31).

2. The quick-change automatic feeding fixture according to claim 1, characterized in that: The push plate (52) has a second plate hole (521) on one side of its top surface. The shape and size of the second plate hole (521) are the same as those of the first plate hole (41).

3. The quick-change automatic feeding fixture according to claim 2, characterized in that: The shape of the relief hole (42) is the same as that of the second plate hole (521), and the diameter of the relief hole (42) is larger than that of the second plate hole (521).

4. The quick-change automatic feeding fixture according to claim 1, characterized in that: The feeding mechanism (5) includes a slider (51) movably disposed on the lower base plate (2), a pusher plate (52) fixed on the slider (51) and located in the feeding chamber (31), and a cylinder (53) fixed on the lower base plate (2), wherein the piston rod of the cylinder (53) is connected to the slider (51).

5. The quick-change automatic feeding fixture according to claim 4, characterized in that: The bottom plate (2) has symmetrically distributed guide grooves (21) on its top surface. There are two guide grooves (21), and each guide groove (21) has an elongated hole (22) on its bottom wall along its groove length direction.

6. The quick-change automatic feeding fixture according to claim 5, characterized in that: The slider (51) includes a base part (511) disposed at the bottom of the lower base plate (2) and guide parts (512) symmetrically disposed on the base part (511). The base part (511) is connected to the piston rod of the cylinder (53). The guide part (512) is T-shaped. The top end of the guide part (512) is movably disposed in the guide groove (21). The lower end of the guide part (512) passes through the elongated hole (22) and is connected to the base part (511).

7. The quick-change automatic feeding fixture according to claim 6, characterized in that: The push plate (52) has mounting holes (522) on both sides respectively. The top surface of the guide slide (512) protrudes upward to form a locking protrusion (513) that matches the mounting hole (522). The locking protrusion (513) is embedded in the mounting hole (522).

8. The quick-change automatic feeding fixture according to claim 7, characterized in that: The top height of the cam (513) of the guide slide (512) is higher than the top surface of the bottom plate (2), and there is a pre-set gap between the bottom surface of the push plate (52) and the top surface of the bottom plate (2).

9. The quick-change automatic feeding fixture according to any one of claims 1-8, characterized in that: The bottom plate (2), frame (3) and top cover plate (4) are all provided with coaxial screw holes at their four corners, and bolts (8) are threaded into the screw holes.

10. The quick-change automatic feeding fixture according to any one of claims 1-8, characterized in that: The top of the positioning rod (6) is tapered.

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