Burr pressing and waste cutting device

Abstract

The utility model relates to a machining jig, in particular to a burr pressing and waste cutting device which comprises an upper clamping plate, a stopping plate, an upper stripping plate and a lower die plate which are stacked from top to bottom, and a cavity is formed between the lower die plate and the upper stripping plate. One end of the punch is arranged towards the direction of the cavity; a tool edge is arranged on the edge of the top face of the lower die insert, a workpiece is clamped between the upper stripping plate and the lower die plate, at least part of the workpiece is arranged on the top face of the lower die insert, and the joint of the workpiece and the tying belt is arranged at the position of the tool edge. The height of the first cutter wall is gradually increased in the direction from the position where the workpiece is placed to the position where the lace is placed, and the second cutter wall is connected with the highest point of the first cutter wall and is horizontally arranged. By means of the structure, the first cutter wall which is lifted and the second cutter wall which is connected with the first cutter wall are arranged at the cutter edge of the lower die insert core, burrs are pressed while a tying belt is cut, and machining efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to a processing jig, in particular to a device for pressing burrs and cutting waste. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] It is now necessary to process a workpiece connected by a lacing. The specific steps include punching, embossing, bending and other processes. Among them, the product requirement is that there is no burr around the entire circumference, but the burr cannot be pressed at the position where the workpiece is connected to the lacing.

[0004] The existing solution is to add a final step to perform additional burring treatment at the connection between the workpiece and the lacing to meet product requirements. However, this additional step obviously reduces output efficiency and indirectly increases mold costs.

[0005] There is currently no burr pressing and waste cutting device that can solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a device for pressing burrs and cutting waste. By arranging a raised first knife wall and a second knife wall connected thereto at the knife edge of the lower die insert, burrs can be pressed while cutting the lacing, thereby significantly improving processing efficiency.

[0007] In order to achieve the above-mentioned object, the present invention discloses the following burr pressing and waste cutting device for processing a workpiece, wherein the edge of the workpiece is connected to a lacing; the burr pressing and waste cutting device comprises:

[0008] An upper clamping plate, a stop plate, an upper stripping plate, and a lower template are stacked from top to bottom, and a cavity is provided between the lower template and the upper stripping plate;

[0009] a punch, one end of which is clamped by the upper clamping plate, and the other end of which is arranged toward the cavity;

[0010] A lower die insert, the lower die insert being arranged in the cavity, the edge of the top surface of the lower die insert comprising a cutting edge, the cutting edge being arranged adjacent to a side edge of the punch;

[0011] The workpiece is clamped between the upper stripping plate and the lower template, at least part of the workpiece is placed on the top surface of the lower mold insert, and the connection between the workpiece and the lacing is set at the position of the knife edge, and the knife edge is provided with a first knife wall that gradually rises in height from the position where the workpiece is placed toward the position where the lacing is placed, and a second knife wall that is connected to the highest point of the first knife wall and is horizontally arranged;

[0012] When the upper clamping plate drives the punch to cut downward, the edge of the workpiece is squeezed by the upper stripping plate and the first knife wall to form a chamfer, and at the same time, the connection between the workpiece and the lacing is cut by the second knife wall.

[0013] Furthermore, the lifting angle of the first blade wall is 30 degrees.

[0014] Furthermore, the horizontal length of the second blade wall is 0.2 mm.

[0015] Furthermore, the second knife wall is raised by 0.16 mm compared to the top surface of the lower mold insert.

[0016] Furthermore, a side wall connected to the top surface of the lower die insert and facing the punch is inclined outward from the position of the cutting edge to a position away from the cutting edge.

[0017] Furthermore, the height of the lower mold plate matches the height of the lower mold insert.

[0018] Furthermore, when the workpiece is clamped between the upper stripping plate and the lower template, the lower template and the upper stripping plate have sufficient length so that the side of the workpiece away from the cutting edge is flush with the outer walls of the lower template and the upper stripping plate.

[0019] By means of the above technical solution, the beneficial effects of the present invention are as follows:

[0020] The burr pressing and waste cutting device of the present invention can provide a raised first blade wall and a second blade wall connected to the first blade wall at the blade edge of the lower die insert. When the punch presses down to process the workpiece and the lacing, the edge of the workpiece is squeezed by the first blade wall to form a chamfer, and at the same time, the connection between the workpiece and the lacing is cut by the second blade wall. The two steps are completed in one stroke, the separation of the workpiece and the lacing is achieved, and the burr of the workpiece facing the lacing side is removed by chamfering, which significantly improves the processing efficiency.

[0021] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are for reference and illustration only and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 It is a side view schematic diagram of a burr pressing and waste cutting device provided in an embodiment of this specification;

[0024] Figure 2 This is a schematic diagram of a lower die insert of a burr pressing and waste cutting device provided in an embodiment of this specification;

[0025] In the figure: 100, workpiece; 1, upper clamping plate; 2, stop plate; 3, upper stripper plate; 4, lower template; 5, punch; 6, lower die insert; 61, cutting edge; 611, first cutting wall; 612, second cutting wall. DETAILED DESCRIPTION

[0026] To help those skilled in the art better understand the technical solutions in this specification, the following will provide a clear and complete description of the technical solutions in the embodiments of this specification, in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this specification, not all of them. All other embodiments derived by those skilled in the art based on the embodiments in this specification without creative effort shall fall within the scope of protection of this specification.

[0027] The following is an explanation of the implementation of the present invention through specific specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual dimensions. It is stated in advance. The following implementation methods will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention.

[0028] It should be understood that although terms such as "first," "second," and "third" may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. In addition, the term "or" as used herein may include any one or more combinations of the associated listed items, as appropriate.

[0029] See Figure 1-2 , is a burr pressing and waste cutting device of this embodiment, used for processing a workpiece 100, wherein the edge of the workpiece 100 is connected to the lacing; wherein the burr pressing and waste cutting device comprises:

[0030] An upper clamping plate 1, a stop plate 2, an upper stripping plate 3, and a lower template 4 are stacked from top to bottom, and a cavity is provided between the lower template 4 and the upper stripping plate 3;

[0031] A punch 5, one end of which is clamped by the upper clamping plate 1, and the other end of which is arranged toward the cavity;

[0032] The lower die insert 6 is arranged in the cavity, and the edge of the top surface of the lower die insert 6 includes a cutting edge 61, and the cutting edge 61 is arranged adjacent to the edge of one side of the punch 5;

[0033] The workpiece 100 is clamped between the upper stripper plate 3 and the lower mold plate 4. At least part of the workpiece 100 is placed on the top surface of the lower mold insert 6. The connection between the workpiece 100 and the lacing is located at the position of the blade 61. The blade 61 is provided with a first blade wall 611 that gradually rises in height from the position where the workpiece 100 is placed toward the position where the lacing is placed, and a second blade wall 612 that is connected to the highest point of the first blade wall 611 and is horizontally arranged.

[0034] When the upper clamping plate 1 drives the punch 5 to cut downward, the edge of the workpiece 100 is squeezed by the upper stripping plate 3 and the first knife wall 611 to form a chamfer, and at the same time, the connection between the workpiece 100 and the lacing is cut by the second knife wall 612.

[0035] For the above structure, during installation, the upper clamping plate 1, the stop plate 2, the upper stripping plate 3, and the lower template 4 are stacked in sequence from top to bottom, and the punch 5 is clamped and arranged in between by the upper clamping plate 1, and is arranged toward the lower die insert 6 installed in the cavity of the lower template 4. Specifically, the side of the lower die insert 6 facing the punch 5 and the side of the punch 5 facing the lower die insert 6 are adjacent to each other, and are arranged to avoid each other, so that in the process of the upper clamping plate 1 driving the punch 5 to move downward, the punch 5 and the lower die insert 6 can have unimpeded tangential movement.

[0036] With the above structure, when in use, the operator only needs to place the workpiece 100 and the tie connected to the workpiece 100 between the upper stripper plate 3 and the lower die plate 4, and make at least part of the workpiece 100 be pressed against the lower die insert 6, and the connection between the workpiece 100 and the tie is placed on the cutting edge 61 of the lower die insert 6, and the tie is placed on the side of the cutting edge away from the body of the lower die insert 6. Then, the operator activates the upper clamping plate 1 to drive the punch 5 to impact downward, and at the same time, the upper stripper plate 3 presses toward the workpiece, so that the first blade wall 611 of the upper stripper plate 3 and the lower die insert 6 squeezes the edge of the workpiece 100 into a shape close to the first blade wall 611, and the connection between the workpiece 100 and the tie is squeezed and cut by the punch 5 and the second blade wall 612, finally forming a chamfered structure without burrs at the edge of the workpiece 100, and the workpiece 100 is separated from the tie.

[0037] During the above-described use process, both the cutting and burring steps are completed with a single downward pressure operation, significantly improving efficiency compared to the prior art process that requires additional burring of the tie. It is worth noting that the tie can be any other waste structure connected to the workpiece 100, and any separation from the workpiece 100 can be achieved using the burr pressing and waste cutting device of this embodiment.

[0038] Furthermore, the first blade 611 has a raised angle of 30 degrees, indicated by angle a in the figure. The horizontal length of the second blade 612 is 0.2 mm, and the second blade 612 is raised 0.16 mm above the top surface of the lower mold insert 6. In this embodiment, the workpiece 100 to be used is at least 0.5 mm thick. The above dimensions and angles of the first and second blades 611 and 612 are optimally chosen to balance production difficulty and cost.

[0039] Further, if Figure 2 As shown, a side wall connected to the top surface of the lower die insert 6 and facing the punch 5 is inclined outward from the position of the blade 61 to a position away from the blade 61. With the above structure, a certain amount of redundant space can be provided on the bottom side of the lower die insert 6 after the punch 5 is lowered, thereby avoiding possible friction between the lower die insert 6 and the punch 5, or waste chips falling into the position between the punch 5 and the lower die insert 6, which may cause equipment wear and other problems, thereby improving the service life of the product.

[0040] Further, if Figure 1As shown, the height of the lower template 4 matches the height of the lower mold insert 6. Specifically, in this embodiment, the side of the lower mold insert 6 away from the lace placement position is tightly leaned against and fixed on the lower template 4, and the size of the side wall of the lower mold insert 6 matches the lower template 4, so that the lower mold insert 6 is fixed more firmly, and the vibration force is transmitted to the stable lower template 4 and eliminated, avoiding the occurrence of product processing errors due to unstable fixation and shaking of the lower mold insert 6 when the upper stripper 3 and the punch 5 impact the lower mold insert 6.

[0041] Furthermore, when the workpiece 100 is clamped between the upper stripping plate 3 and the lower template 4, the lower template 4 and the upper stripping plate 3 have sufficient lengths so that the side of the workpiece 100 away from the cutting edge 61 is flush with the outer walls of the lower template 4 and the upper stripping plate 3. Specifically, Figure 1 As shown, through the above structure, the main part of the workpiece 100 is tightly clamped in the middle by the lower template 4 and the upper stripper plate 3, and the workpiece 100 does not protrude too much from the burr pressing and waste cutting device, which can effectively avoid the occurrence of deviation caused by accidental contact of external force during the stamping process of the workpiece 100.

[0042] In addition to the above embodiments, in the specific process of stamping the workpiece 100, the first knife wall 611 can be set to a curved surface, a special-shaped surface, a multi-segment surface or other structures according to actual needs, which also does not deviate from the concept of the present invention, so that the edge shape of the stamped workpiece 100 meets the final product requirements.

[0043] The contents disclosed above are only preferred feasible embodiments of the present invention and do not limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made using the contents of the description and drawings of the present invention are included in the scope of the patent application of the present invention.

[0044] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0045] Although the present application has been described through embodiments, those skilled in the art will appreciate that there are many modifications and variations to the present application without departing from the spirit of the present application. It is intended that the appended embodiments include these modifications and variations without departing from the present application.

Claims

1. A burr pressing and waste cutting device for processing a workpiece, wherein: The edge of the workpiece is connected to the lacing; it is characterized in that the burr pressing and waste cutting device includes: An upper clamping plate, a stop plate, an upper stripping plate, and a lower template are stacked from top to bottom, and a cavity is provided between the lower template and the upper stripping plate; a punch, one end of which is clamped by the upper clamping plate, and the other end of which is arranged toward the cavity; A lower die insert, the lower die insert being disposed in the cavity, the edge of the top surface of the lower die insert comprising a cutting edge, the cutting edge being disposed adjacent to a side edge of the punch; The workpiece is clamped between the upper stripping plate and the lower template, at least part of the workpiece is placed on the top surface of the lower mold insert, and the connection between the workpiece and the lacing is set at the position of the knife edge, and the knife edge is provided with a first knife wall that gradually rises in height from the position where the workpiece is placed toward the position where the lacing is placed, and a second knife wall that is connected to the highest point of the first knife wall and is horizontally arranged; When the upper clamping plate drives the punch to cut downward, the edge of the workpiece is squeezed by the upper stripping plate and the first knife wall to form a chamfer, and at the same time, the connection between the workpiece and the lacing is cut by the second knife wall.

2. The burr pressing and waste cutting device according to claim 1, characterized in that: The lifting angle of the first blade wall is 30 degrees.

3. The burr pressing and waste cutting device according to claim 1, characterized in that: The horizontal length of the second blade wall is 0.2 mm.

4. The burr pressing and waste cutting device according to claim 1, characterized in that: The second knife wall is raised by 0.16 mm compared to the top surface of the lower mold insert.

5. The burr pressing and waste cutting device according to claim 1, characterized in that: A side wall connected to the top surface of the lower die insert and facing the punch is inclined outward from the position of the cutting edge to a position away from the cutting edge.

6. The burr pressing and waste cutting device according to claim 1, characterized in that: The height of the lower mold plate matches the height of the lower mold insert.

7. The burr pressing and waste cutting device according to claim 1, characterized in that: When the workpiece is clamped between the upper stripping plate and the lower template, the lower template and the upper stripping plate have sufficient lengths so that the side of the workpiece away from the knife edge is flush with the outer walls of the lower template and the upper stripping plate.

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