Angle grinder protection cover forming device

Abstract

The utility model discloses an angle grinder protective cover forming device. The angle grinder protective cover forming device comprises a feeding mechanism used for conveying a material belt, an upper die base provided with a forming punch assembly and a lower die base provided with a forming workbench. And the upper die holder is connected with an external power mechanism. The forming punch assembly comprises a punching assembly, a hole flanging punch, a first shaping punch, a flanging punch and a second shaping punch which are sequentially arranged. A shearing head used for shearing a protective cover prototype is arranged on one side of the first shaping punch. A hole forming female die, a hole flanging female die, a first shaping female die, a shearing platform, a flanging female die and a second shaping female die which are sequentially matched with the punching assembly, the hole flanging punch, the first shaping punch, the shearing head, the flanging punch and the second shaping punch are arranged on the forming workbench. According to the device, a multi-step production process in the prior art is integrated into one procedure, so that the production efficiency can be greatly improved, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous molding equipment, in particular to a molding device for a protective cover of an angle grinder. Background Art

[0002] The main function of the protective cover on the angle grinder is to protect the user's safety, prevent the blade from flying out during work, and avoid injuries to the staff. At the same time, it prevents debris and dust from entering the eyes or splashing into the surrounding air. The protective cover is a special-shaped part with an irregular shape. The existing processing method generally requires multiple processes and steps, such as cutting, rough processing, and fine processing. After processing one process, the workpiece needs to be transferred to the workstation of another process for processing, resulting in low production efficiency. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a device for forming a protective cover for an angle grinder, which solves the problem of low production efficiency of the protective cover in the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] Provided is an angle grinder protective cover forming device, which comprises a feeding mechanism for conveying a material belt, an upper die seat provided with a forming punch assembly, and a lower die seat provided with a forming workbench; the upper die seat is connected to an external power mechanism;

[0006] The forming punch assembly includes a punch assembly for punching holes, a hole punch for turning the hole edge into a vertical edge, a first shaping punch for shaping the hole, a flanging punch for turning the protective cover edge into a vertical edge, and a second shaping punch for shaping the flanging; a shearing head for shearing out the protective cover prototype is arranged on one side of the first shaping punch;

[0007] The forming workbench is provided with a hole forming die, a hole flanging die, a first shaping die, a shearing platform, a flanging die and a second shaping die which cooperate with the punching assembly, a hole flanging punch, a first shaping punch, a shearing head, a flanging punch and a second shaping punch in sequence.

[0008] The beneficial effects of the utility model are as follows: the device is a continuous forming device designed for the protective cover of the angle grinder, the upper die seat cooperates with the feeding rhythm of the feeding mechanism, and is driven indirectly downward by an external power mechanism, so that the protective cover is continuously formed under the cooperation of each forming punch and the forming die, which can greatly improve production efficiency and save costs.

[0009] Furthermore, the lower die base is evenly provided with a plurality of floating pins along the length direction, and the floating pins are symmetrically arranged at both ends of the lower die base along the center line of the length direction of the lower die base; an annular groove is provided on the outer surface of the floating pin, and both ends of the width direction of the material strip extend into the annular groove. The annular groove of the floating pin is used to limit the material strip, so that the material strip can move forward in a straight line, avoiding the material strip from deviating relative to the lower die base, resulting in stamping failure, and thus causing material waste.

[0010] Furthermore, a spring assembly is fixedly connected to the bottom of the floating pin, and the spring assembly is installed in the installation groove of the lower die seat. The floating pin is movably connected to the lower die seat through the spring assembly. When the lower die seat is pressed down, it can simultaneously drive the floating pin to move downward, thereby driving the material strip to move downward.

[0011] Furthermore, the lower surface of the upper die seat is connected with a pad and a stripping plate in sequence, the pad is fixedly connected to the forming punch assembly, and the stripping plate is movably connected to the pad through a spring; when working, the stripping plate is in indirect contact with the surface of the forming workbench.

[0012] The beneficial effects of the above technical solution are: the stripping plate can provide additional support area, close to the surface of the forming workbench during stamping, so as to press the strip tightly, ensure the flatness of the strip and the product, and prevent warping. The pad helps to buffer the pressure.

[0013] Furthermore, an upper die unloading assembly movably connected to the upper die base through a spring is provided on the upper die base, which can prevent the material plate from sticking to the stripping plate, reduce the occurrence of material jamming, and improve production efficiency.

[0014] Furthermore, the bottoms of the punching die, the flanging die and the second shaping die are all provided with stripping components. After stamping, the stripping components can immediately push the waste left over from the punching or the formed workpiece out of the die to ensure the movement of the sheet.

[0015] Furthermore, a marking punch is provided at the rear end of the punching assembly for marking the non-forming area of ​​the material strip; a detection pin is provided at the rear end of the first shaping punch; the marking punch and the detection pin are located on the same straight line along the running direction of the material strip. The marking punch can make special marks such as grooves, holes, and protrusions on the material strip, and the detection pin is used to detect whether the material strip has reached the specified position to prevent misfeeding.

[0016] Furthermore, a shearing punch for shearing off excess material is provided at the end of the upper die seat, and a material receiving platform cooperating with the shearing punch is provided at the end of the lower die seat, and a through hole for storing the protective cover is provided at the center of the material receiving platform. The shearing punch cooperates with the material receiving platform to shear off excess material other than the protective cover, so that the protective cover is separated from the material strip to form a single finished product, and falls into the through hole at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the angle grinder protective cover forming device;

[0018] Figure 2 for Figure 1 Top view of the middle and lower die base.

[0019] Among them, 1. upper die base; 2. lower die base; 3. upper die unloading assembly; 4. punching assembly; 5. hole-turning punch; 6. first shaping punch; 7. detection pin; 8. flanging punch; 9. second shaping punch; 10. pad; 11. stripping plate; 12. stripping assembly; 13. floating pin; 14. material belt; 15. hole-turning die; 16. first shaping die; 17. material collecting platform; 18. flanging die; 19. second shaping die; 20. spring assembly; 21. marking punch; 22. shearing head; 23. shearing platform; 24. shearing punch; 25. hole-forming die. DETAILED DESCRIPTION

[0020] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0021] like Figure 1-2 As shown, the angle grinder protective cover forming device of this scheme includes a feeding mechanism for conveying a material belt 14, an upper die base 1 provided with a forming punch assembly, and a lower die base 2 provided with a forming workbench; the upper die base 1 is connected to an external power mechanism;

[0022] The forming punch assembly includes a punch assembly 4 for punching holes, a hole punch 5 for turning the hole edge into a vertical edge, a first shaping punch 6 for shaping the hole, a flanging punch 8 for turning the edge of the protective cover into a vertical edge, and a second shaping punch 9 for shaping the flanging. A shearing head 22 for shearing out the prototype of the protective cover is arranged on one side of the first shaping punch 6.

[0023] The forming workbench is provided with a hole forming die 25, a hole flanging die 15, a first shaping die 16, a shearing platform 23, a flanging die 18 and a second shaping die 19 which cooperate with the punching assembly 4, the hole flanging punch 5, the first shaping punch 6, the shearing head 22, the flanging punch 8 and the second shaping punch 9 in sequence.

[0024] The end of the upper die base 1 is provided with a shearing punch 24 for shearing excess material, and the end of the lower die base 2 is provided with a material receiving platform 17 cooperating with the shearing punch 24, and a through hole for storing the protective cover is opened in the center of the material receiving platform 17.

[0025] This device is a continuous forming device designed for angle grinder protective covers. The upper die seat 1 cooperates with the feeding rhythm of the feeding mechanism and is driven by an external power mechanism to indirectly press down. All forming punch components are executed simultaneously, so that the protective cover is continuously formed under the cooperation of each forming punch and forming die. The multi-step production process in the prior art is integrated into one process, which greatly shortens the transportation distance and time required for transportation, greatly improves production efficiency and saves costs.

[0026] Preferably, the lower die base 2 is evenly provided with a plurality of floating pins 13 along the length direction, and the floating pins 13 are symmetrically arranged at both ends of the lower die base 2 along the center line of the length direction of the lower die base 2; an annular groove is provided on the outer surface of the floating pin 13, and both ends of the width direction of the material strip 14 extend into the annular groove. The annular groove of the floating pin 13 is used to limit the material strip 14, so that the material strip 14 can move forward in a straight line, and avoid the material strip 14 from deviating relative to the lower die base 2, resulting in stamping failure, thereby causing material waste.

[0027] The bottom of the floating pin 13 is fixedly connected with a spring assembly 20, which is installed in the installation groove of the lower die base 2. The floating pin 13 is movably connected with the lower die base 2 through the spring assembly 20. When the lower die base 1 is pressed down, the floating pin 13 can be driven to move downward at the same time, thereby driving the material belt 14 to move downward.

[0028] Preferably, the lower surface of the upper die base 1 is connected with a backing plate 10 and a stripping plate 11 in sequence, and the backing plate 10 is fixedly connected to the forming punch assembly to help buffer the pressure. The stripping plate 11 is movably connected to the backing plate 10 through a spring; in the working state, the stripping plate 11 is in indirect contact with the surface of the forming workbench. The stripping plate 11 can provide additional support area and is close to the surface of the forming workbench during stamping, so as to press the material strip 14, ensure that the material strip 14 and the product have good flatness, and do not warp.

[0029] The upper die base 1 is provided with an upper die unloading assembly 3 movably connected to the upper die base 1 through a spring. Since the contact area between the stripping plate 11 and the material belt 14 is large, it is easy to stick to the stripping plate 11 during the pressing process. The upper die unloading assembly 3 can prevent the material plate 14 from sticking to the stripping plate 11, reduce the occurrence of material jamming, and improve production efficiency.

[0030] The bottoms of the punching die 15, the flanging die 18 and the second shaping die 19 are all provided with a stripping assembly 12. After stamping, the stripping assembly 12 can immediately push the waste material remaining from the punching or the formed workpiece out of the die to ensure the operation of the material plate 14.

[0031] The feeding mechanism is driven by a stepper motor. After a period of use, the feeding distance may have a certain error, which will lead to feeding errors and unqualified quality of stamped products. As an embodiment of the utility model, the rear end of the punching assembly 4 is provided with a marking punch 21 for marking the non-molding area of ​​the material strip 14; the rear end of the first shaping punch 6 is provided with a detection pin 7; the marking punch 21 and the detection pin 7 are located on the same straight line along the running direction of the material strip 14. The marking punch 21 can make special marks such as grooves, holes, and protrusions on the material strip 14, and detect whether the material strip 14 has reached the specified position through the detection pin 7 to prevent misfeeding. The general detection principle is: a detection probe is provided at the end of the detection pin 7. After feeding a certain distance, the marking point punched out by the marking punch 21 reaches directly below the detection pin 7. If the detection pin 7 detects the marking point when it is pressed down, the feeding is correct, otherwise the feeding is incorrect.

[0032] The forming process of the utility model is as follows: 1. The punching assembly 4 and the hole forming die 25 cooperate to punch a round hole out of the material strip 14; 2. The hole punch 5 cooperates with the hole forming die 15 to turn the edge of the round hole downward into a vertical edge; 3. The first shaping punch 6 cooperates with the first shaping die 16 to further improve the forming quality of the hole, make the edge of the hole more flat and smooth, and further optimize the shape of the hole to be more in line with the design shape, so as to better connect with the angle grinder; at the same time, the shear head 22 The prototype shape of the protective cover is cut out, which is roughly fan-shaped; 4. The flanging punch 8 and the flanging die 18 cooperate to turn the edge of the fan upward; 5. The second shaping punch 9 and the second shaping die 19 cooperate to further improve the forming quality of the flanging, and further optimize the shape of the flanging to be more in line with the designed shape; 6. The shearing punch 24 cooperates with the material receiving platform 17 to cut off the excess material outside the protective cover, so that the protective cover is separated from the material strip 14 to become a single finished product, and at the same time falls into the through hole for storage.

[0033] In summary, the present device integrates the multi-step production process in the prior art into one process, which can greatly improve production efficiency and save costs.

Claims

1. A device for forming a protective cover for an angle grinder, characterized in that: It comprises a feeding mechanism for conveying a material belt (14), an upper die base (1) provided with a forming punch assembly, and a lower die base (2) provided with a forming workbench; the upper die base (1) is connected to an external power mechanism; The forming punch assembly comprises a punch assembly (4) for punching holes, a hole punch (5) for turning the hole edge into a vertical edge, a first shaping punch (6) for shaping the hole, a flanging punch (8) for turning the protective cover edge into a vertical edge, and a second shaping punch (9) for shaping the flanging. A shearing head (22) for shearing out a rough shape of the protective cover is arranged on one side of the first shaping punch (6); The forming workbench is provided with a hole forming die (25), a hole flanging die (15), a first shaping die (16), a shearing platform (23), a flanging die (18) and a second shaping die (19) which cooperate with the punching assembly (4), the hole flanging punch (5), the first shaping punch (6), the shearing head (22), the flanging punch (8) and the second shaping punch (9) in sequence.

2. The angle grinder protective cover forming device according to claim 1, characterized in that: The lower die base (2) is evenly provided with a plurality of floating pins (13) along the length direction, and the floating pins (13) are symmetrically arranged at the two ends of the lower die base (2) along the center line of the length direction of the lower die base (2); an annular groove is formed on the outer surface of the floating pins (13), and both ends of the material strip (14) in the width direction extend into the annular groove.

3. The angle grinder protective cover forming device according to claim 2, characterized in that: The bottom of the floating pin (13) is fixedly connected with a spring assembly (20), and the spring assembly (20) is installed in the installation groove of the lower die base (2).

4. The angle grinder protective cover forming device according to claim 1, characterized in that: The lower surface of the upper die seat (1) is connected in sequence with a backing plate (10) and a stripping plate (11); the backing plate (10) is fixedly connected to the forming punch assembly, and the stripping plate (11) is movably connected to the backing plate (10) via a spring; when working, the stripping plate (11) is in indirect contact with the surface of the forming workbench.

5. The angle grinder protective cover forming device according to claim 4, characterized in that: The upper die base (1) is provided with an upper die unloading assembly (3) movably connected to the upper die base (1) via a spring.

6. The angle grinder protective cover forming device according to claim 1, characterized in that: The bottoms of the hole-burring die (15), the edge-flanging die (18) and the second shaping die (19) are all provided with a stripping assembly (12).

7. The angle grinder protective cover forming device according to claim 1, characterized in that: The rear end of the punching assembly (4) is provided with a marking punch (21) for marking the non-molding area of ​​the material strip (14); the rear end of the first shaping punch (6) is provided with a detection pin (7); the marking punch (21) and the detection pin (7) are located on the same straight line in the running direction of the material strip (14).

8. The angle grinder protective cover forming device according to claim 1, characterized in that: The end of the upper die base (1) is provided with a shearing punch (24) for shearing excess material, and the end of the lower die base (2) is provided with a material receiving platform (17) cooperating with the shearing punch (24), and a through hole for storing a protective cover is opened at the center of the material receiving platform (17).

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