A burr removal device and method for plate parts

Abstract

The present invention relates to a burr removal device and method for plate parts, which are used to remove burrs on the side surfaces of plate parts. The burr removal device includes a lower die, an upper punch located above the lower die, and a clamping drive mechanism that drives the upper punch to move up and down. A burr removal hole is provided in the middle of the lower die. The contour shape of the burr removal hole is the same as the contour shape of the side of the plate part, so that the plate part can be just located in the burr removal hole. The clamping drive mechanism can drive the upper punch to enter or leave the burr removal hole. The burr removal device and method of the present invention can efficiently and smoothly remove burrs on the side surfaces of plate parts. It is simple to operate, can greatly reduce labor costs, can improve production efficiency, reduce production costs, and has a good burr removal effect and high-quality parts.

Description

Technical Field

[0001] The invention relates to the field of stamping production, and in particular to a burr removal device and method for plate parts. Background Art

[0002] The clutch is a common component in mechanical transmission, which can separate or engage the transmission system at any time. The basic requirements are: smooth engagement, quick and thorough separation; easy adjustment and repair; small outer dimensions; small mass; good wear resistance and sufficient heat dissipation capacity; easy and labor-saving operation. The commonly used types are tooth-type and friction-type. The clutch steel plate is one of the important components of the clutch. The friction plate needs to be pasted on the surface of the clutch steel plate to meet the use requirements of the clutch. The most important requirement for the clutch steel plate is that there are no burrs on the surface and sides. The surface burrs affect the fit of the friction plate, which in turn affects the performance of the clutch. The side burrs affect the working process of the clutch and the cleanliness of the clutch (the burrs fall off and cause foreign matter in the clutch). In the past, manual deburring or machine deburring was used in the deburring process of the clutch steel plate. The manual deburring rhythm is slow and the deburring effect is unstable. The machine deburring rhythm is slightly faster than manual deburring, but it will leave chamfers in the deburring area, affecting the fit of the friction plate and the clutch steel plate. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a burr removal device and method for plate parts, which can quickly and efficiently remove burrs on the side surfaces of plate parts, with good burr removal quality, thereby improving product quality.

[0004] To achieve the above-mentioned purpose, the present invention provides a burr removal device for plate parts, which is used to remove burrs on the side surfaces of plate parts, including a lower die, an upper punch located above the lower die, and a clamping drive mechanism that drives the upper punch to move up and down. A burr removal hole is provided in the middle of the lower die, and the contour shape of the burr removal hole is the same as the contour shape of the side of the plate part, so that the plate part can be exactly located in the burr removal hole, and the clamping drive mechanism can drive the upper punch to enter or leave the burr removal hole.

[0005] Furthermore, the side contour shape of the upper punch is completely the same as the side contour shape of the plate part and is aligned with the burr removal through hole.

[0006] Furthermore, when the plate part is located in the puncture removal through hole, the gap between the two is 0.02-0.04 mm.

[0007] Furthermore, the outer edge of the plate part has a raised portion, and the burr removal device also includes a limiting guide block fixed to the upper end of the lower die and located around the burr removal hole, the burr removal hole includes a raised slot hole corresponding to the raised portion, and a vertically extending guide groove is provided on the surface of the limiting guide block facing the burr removal hole, and the cross-section of the guide groove gradually decreases from top to bottom, and the shape of the lower port of the guide groove is the same as the shape of the raised slot hole, and they are relatively aligned.

[0008] Furthermore, it comprises a sliding guide mechanism, which comprises a vertically arranged sliding guide rod and a sliding sleeve sleeved on the sliding guide rod, wherein the sliding guide rod is fixed to the lower concave die, and the sliding sleeve is fixed to the upper convex die.

[0009] Furthermore, it comprises a lower die fixing plate and an upper die fixing plate, the lower concave die is fixedly mounted on the upper end of the lower die fixing plate, the upper convex die is fixedly mounted on the lower end of the upper die fixing plate, and the mold closing drive mechanism is connected to the upper die fixing plate.

[0010] Furthermore, the mold closing drive mechanism comprises a telescopic power cylinder, which is arranged vertically and has a piston rod facing in the direction of the upper punch, and the upper punch is fixedly connected to the piston rod.

[0011] Furthermore, it also includes an anti-drop mechanism, which includes a blocking block and a blocking driving structure that drives the blocking block to move, the blocking block includes a blocking portion extending into the lower port of the puncture removal hole, and when the upper punch pushes the plate part downward to the lower port of the puncture removal hole, the blocking driving structure drives the blocking block to move until the blocking portion leaves the lower port of the puncture removal hole.

[0012] Furthermore, the blocking block is provided with an upward thrust slope, and the blocking drive structure includes a pushing block arranged above the thrust slope, the pushing block moves up and down synchronously with the upper punch, and the blocking block can push the blocking block to move laterally when pressed against the thrust slope.

[0013] The present invention also provides a method for removing burrs from a plate part, which is performed using the above-mentioned burr removal device and comprises the following steps:

[0014] S1. In the initial stage, the upper punch and the lower die are in a separated state, the plate part to be deburred is placed on the lower die, and the plate part is kept completely aligned with the deburring through hole;

[0015] S2, in the preparation stage, the mold clamping drive mechanism is controlled to move, the upper punch is driven to move downward to abut against the upper end of the plate part, and the plate part is pushed downward to the upper end of the puncture removal through hole;

[0016] S3, deburring stage, the upper punch continues to move downward, pushing the plate part into the deburring through hole of the lower die. During the deburring through hole, the thick burrs on the side surface of the plate part are removed as a whole by the extrusion and cutting action between the plate part and the lower die.

[0017] As described above, the burr removal device and method according to the present invention have the following beneficial effects:

[0018] By setting a lower die, an upper punch, and a clamping drive mechanism, and designing the burr removal hole in the lower die to be the same shape as the side contour of the plate part, when in use, the plate part to be deburred is placed above the lower die, and the plate part is kept completely aligned with the burr removal hole, and the clamping drive mechanism is used to drive the upper punch to move downward until it abuts against the upper end of the plate part, and the plate part is pressed down and moved until the plate part enters the burr removal hole of the lower die and continues to move. Since the gap between the side surface of the plate part and the wall of the burr removal hole is very small, the thick burrs on the side surface of the plate part are removed as a whole by the extrusion and cutting action between the lower die and the plate part during the process of the plate part passing through the burr removal hole, and finally separated from the burr removal hole, thereby achieving the burr removal work on the peripheral surface of the plate part. The burr removal device of the present invention can replace the existing manual deburring or machine deburring, improve the efficiency and quality of the burr removal work on the side surface of the plate part, improve the quality of the parts, and have high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the deburring device of the present invention.

[0020] Figure 2 for Figure 1 Front view of .

[0021] Figure 3 It is a schematic diagram of the assembly of some parts of the deburring device of the present invention.

[0022] Figure 4 for Figure 3 Top view of the .

[0023] Figure 5 for Figure 3 Front view of .

[0024] Figure 6 for Figure 3 Bottom view of .

[0025] Figure 7 It is a schematic structural diagram of the lower concave die in the present invention.

[0026] Figure 8 It is a structural diagram of the plate parts.

[0027] Fig. 9It is a schematic structural diagram of the upper punch in the present invention.

[0028] Fig.10 It is a schematic diagram of the cooperation between the lower concave die and the clutch steel plate in the present invention.

[0029] Component number description

[0030] 1 Plate Parts

[0031] 11 Raised part

[0032] 2. Lower die

[0033] 21. Puncture removal through hole

[0034] 211 Raised slot

[0035] 3 Upper punch

[0036] 4 Lower die fixing plate

[0037] 5 Upper die fixing plate

[0038] 6 Limit guide block

[0039] 61 Guide slot

[0040] 71 Push Block

[0041] 72 Block

[0042] 721 Thrust ramp

[0043] 722 Blocking

[0044] 73 Stopper mounting seat

[0045] 74 Block Slide Bar

[0046] 81 Sliding guide rod

[0047] 82 Sliding sleeve

[0048] 9 Telescopic cylinder

[0049] 10 Mounting base DETAILED DESCRIPTION

[0050] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0051] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0052] See also Figures 1 to 10 The present invention provides a burr removal device for plate parts, which is used to remove burrs on the side surface of the plate part 1. The burr removal device includes a lower die 2, an upper punch 3 located above the lower die 2, and a clamping drive mechanism for driving the upper punch 3 to move up and down. A burr removal hole 21 is provided in the middle of the lower die 2. The contour shape of the burr removal hole 21 is the same as the contour shape of the side of the plate part 1, so that the plate part 1 can be exactly located in the burr removal hole 21. The clamping drive mechanism can drive the upper punch 3 to enter or leave the burr removal hole 21.

[0053] The burr removal device of the present invention can be used to remove burrs on the side surfaces of various plate parts 1, and can be used to remove burrs on the side surfaces of clutch steel plates. The working principle is: by designing the burr removal through hole 21 in the lower die 2 to be the same shape as the side contour of the plate part 1, see Figure 7 , Figure 8 and Fig.10 When in use, place the plate part 1 to be deburred above the lower die 2, and keep the plate part 1 completely aligned with the burr removal through hole 21, control the action of the mold clamping drive mechanism, drive the upper punch 3 to move downward until it abuts against the upper end of the plate part 1, press the plate part 1 downward until the plate part 1 enters the burr removal through hole 21 of the lower die 2 and continues to move. Since the gap between the side surface of the plate part 1 and the hole wall of the burr removal through hole 21 is very small, when the plate part 1 passes through the burr removal through hole 21, the thick burrs on the side surface of the plate part 1 are removed as a whole by the extrusion and cutting action between the lower die 2 and the plate part 1, and finally separated from the burr removal through hole 21, thereby achieving the burr removal work on the peripheral surface of the plate part 1. Among them, the spacing between the side surface of the plate part 1 and the hole wall of the burr removal through hole 21 can be determined according to the actual process requirements. Preferably, when the plate part 1 is located in the burr removal hole 21, the gap between the two is 0.02-0.04mm, which has a good burr removal effect, especially when the side surface burrs of the clutch steel plate are removed, the gap of 0.02-0.04mm can effectively remove the burrs and ensure the quality of the clutch steel plate.

[0054] The burr removal device of the present invention can replace the existing manual deburring or machining deburring, improve the efficiency and quality of the burr removal work on the side surface of the plate part 1, improve the quality of the part, and have high production efficiency.

[0055] As a preferred design, in this embodiment, see Figures 7 to 10 The side contour of the upper punch 3 is exactly the same as the side contour of the plate part 1 and is aligned with the burr removal through hole 21. In this way, when the upper punch 3 pushes the plate part 1 through the burr removal through hole 21, the gap between the side surface of the upper punch 3 and the hole wall of the burr removal through hole 21 is also very small, further strengthening the squeezing and cutting effect on the burrs on the side surface of the plate part 1 and improving the deburring effect. In addition, the upper punch 3 has a uniform pushing force on the plate part 1, ensuring that the plate part 1 moves downward stably.

[0056] For a plate part 1 having a protrusion 11 on a part of its outer edge, such as a clutch plate, see Figure 8 , Figure 8 The plate part shown is a clutch steel plate, and the outer edge of the clutch steel plate is splined to form a raised portion 11. As a preferred design, see Figure 3 and Figure 4 In this embodiment, the burr removal device further comprises a limiting guide block 6 fixedly mounted on the upper end of the lower die 2 and located around the burr removal hole 21. The burr removal hole 21 comprises a raised slot 211 corresponding to the raised portion 11. A vertically extending guide slot 61 is provided on the surface of the limiting guide block 6 facing the burr removal hole 21, and the cross section of the guide slot 61 gradually decreases from top to bottom. The shape of the lower end of the guide slot 61 is the same as that of the raised slot 211 and is relatively aligned. It is preferred that a plurality of limiting guide blocks 6 are provided, distributed at different positions around the burr removal hole 21. In this embodiment, there are four limiting guide blocks 6, and they are arranged in pairs on both sides of the burr removal hole 21 in a relative manner. When in use, first place the plate part 1 on the limiting guide block 6, and align the raised part 11 in the guiding groove 61. When the upper punch 3 pushes the plate part 1 downward, the plate part 1 moves vertically downward along the guiding groove 61. Since the guiding groove 61 is larger at the top and smaller at the bottom, and the shape of its lower port is the same as and aligned with the raised slot hole 211, the plate part 1 can be pressed down smoothly through the limiting guiding effect of the guiding groove 61, and smoothly enters the thorn removal hole 21, thereby ensuring accurate positioning.

[0057] In this embodiment, see Figure 1 and Figure 2Preferably, the burr removal device includes a lower die fixing plate 4 and an upper die fixing plate 5, the lower die 2 is fixedly mounted on the upper end of the lower die fixing plate 4, the upper punch 3 is fixedly mounted on the lower end of the upper die fixing plate 5, and the mold clamping drive mechanism is connected to the upper die fixing plate 5, so as to drive the upper punch 3 to move by driving the upper die fixing plate 5. Preferably, the lower die 2 and the lower die fixing plate 4, as well as the upper punch 3 and the upper die fixing plate 5, are all designed to be separated. For different parts, only the upper punch 3 and the lower die 2 need to be replaced, which further saves the cost of device manufacturing and the convenience of changing molds, and improves production efficiency.

[0058] As a preferred design, see Figure 3 and Figure 4 In this embodiment, the burr removal device also includes a sliding guide mechanism, which includes a vertically arranged sliding guide rod 81 and a sliding sleeve 82 mounted on the sliding guide rod 81. The sliding guide rod 81 is fixed to the lower concave die 2, and the sliding sleeve 82 is fixed to the upper punch 3. Through the sliding guide mechanism, the upper punch 3 is stable and reliable during the up and down movement, and no large deviation occurs, ensuring that the part product is not easily deviated when moving down in the burr removal through hole 21, thereby ensuring the burr removal quality. In this embodiment, the lower die fixing plate 4 and the upper die fixing plate 5 are both fixed on a mounting base 10, and there are three sliding guide rods 81. The sliding guide rods 81 are fixed to the lower die fixing plate 4 and are respectively located at different positions around the burr removal through hole 21. The sliding sleeve 82 is fixed to the upper die fixing plate 5, thereby further ensuring the stability of the up and down movement of the upper punch 3. Compared with the previous design, one sliding guide rod 81 is reduced, saving the production cost of the mold while achieving the same effect.

[0059] As a preferred design, in this embodiment, see Figure 1 and Figure 2 The mold closing drive mechanism includes a telescopic power cylinder 9, which is arranged vertically and has a piston rod facing the upper punch 3, and is fixedly connected to the piston rod. The telescopic power cylinder 9 can be a cylinder, a hydraulic cylinder, or an electric cylinder. Specifically in this embodiment, the telescopic power cylinder 9 is a cylinder, which is fixed on the mounting base 10. The cylinder is connected to the pneumatic press for driving. The end of the piston rod is fixedly connected to the upper mold fixing plate 5, and the upper mold fixing plate 5 and the upper punch 3 are driven to move up and down by the telescopic movement of the piston rod.

[0060] As a preferred design, in this embodiment, see Figure 1 and Figure 2The burr removal device also includes an anti-drop mechanism, which includes a blocking block 72 and a blocking driving structure for driving the blocking block 72 to move. The blocking block 72 includes a blocking portion 722 extending into the lower end of the puncture removal through hole 21. When the upper punch 3 moves downward to push the plate part 1 to the lower end of the puncture removal through hole 21, the blocking driving structure drives the blocking block 72 to move to the blocking portion 722 to leave the lower end of the puncture removal through hole 21. In this way, in the deburring process, the blocking portion 722 of the blocking block 72 can prevent the plate part 1 from falling directly from the puncture removal through hole 21 when the burrs on the part are small or there are no burrs, causing bumps and scratches on the surface of the part, thereby improving the quality of the surface of the part. When the upper punch 3 moves to push the plate part 1 to the lower end of the puncture removal through hole 21, the blocking portion 722 of the blocking block 72 leaves the lower end of the puncture removal through hole 21, so that the plate part 1 can smoothly fall off.

[0061] In this embodiment, further, see Figure 3 and Figure 4 The blocking block 72 is provided with an upward thrust inclined surface 721, and the blocking driving structure includes a push block 71 arranged above the thrust inclined surface 721. The push block 71 moves up and down synchronously with the upper punch 3. When the blocking block 72 is pressed against the thrust inclined surface 721, the blocking block 72 can be pushed to move laterally. Specifically in this embodiment, the push block 71 can be fixedly mounted on the lower end of the upper die fixing plate 5, so as to be fixed with the upper punch 3 and move up and down synchronously. The blocking block 72 is mounted on the lower die fixing plate 4, and its blocking portion 722 is abutted against the lower end surface of the lower punch. The thrust inclined surface 721 of the blocking block 72 is preferably facing the center of the puncture removal through hole 21. In addition, preferably, a blocking block mounting seat 73 and a blocking block slide bar 74 mounted in the blocking block mounting seat 73 are also provided. The blocking block 72 is mounted on the blocking block slide bar 74 and moves along the blocking block slide bar 74. In this way, when the push block 71 moves downward, the blocking block 72 can move smoothly horizontally under the action of the thrust inclined surface 721, and the blocking portion 722 leaves the lower end of the puncture removal through hole 21. Further preferably, a reset spring can be arranged between the blocking block 72 and the blocking block mounting seat 73, so that after the push block 71 moves upward with the upper punch 3, the blocking block 72 can be automatically reset in time. Of course, in other embodiments, the blocking drive structure can also adopt other existing designs as long as it can achieve the above functions.

[0062] The present invention also provides a method for removing burrs from a plate part 1, which is performed using the above-mentioned burr removal device and comprises the following steps:

[0063] S1, in the initial stage, the upper punch 3 and the lower die 2 are in a separated state, the plate part 1 to be deburred is placed on the lower die 2, and the plate part 1 is kept completely aligned with the burr removal through hole 21. Specifically, when the burr removal device in this embodiment is used, the plate part 1 is placed on the limiting guide block 6, and the protrusion 11 is kept in the corresponding protrusion slot 211.

[0064] S2, preparation stage, control the action of the mold clamping drive mechanism, drive the upper punch 3 to move downward against the upper end of the plate part 1, and push the plate part 1 downward to the upper end of the burr removal hole 21. Specifically, when the burr removal device in this embodiment is used, the start button of the pneumatic press is pressed, and the piston rod of the cylinder extends downward, driving the upper mold fixing plate 5 to move downward, and the upper mold fixing plate 5 drives the upper punch 3 and the push block 71 to move downward. After the upper punch 3 presses against the plate part 1, the plate part 1 is pressed downward, and the plate part 1 enters the limiting guide block 6 and presses the guide groove 61 to move downward to the upper end of the burr removal hole 21.

[0065] S3, deburring stage, the upper punch 3 continues to move downward, pushing the plate part 1 into the burr removal through hole 21 of the lower die 2. In the process of passing through the burr removal through hole 21, the thick burrs on the side surface of the plate part 1 are removed as a whole due to the extrusion and cutting action between the plate part 1 and the lower die 2. Specifically, when the burr removal device in this embodiment is used, the thick burrs on the side surface of the plate part 1 are further removed due to the extrusion and cutting action between the upper punch 3 and the lower die 2.

[0066] S4, parts separation stage, when the burr removal device in this embodiment is used, when the upper punch 3 moves to push the plate part 1 to reach the lower end of the burr removal hole 21, the blocking driving structure drives the blocking block 72 to move to the blocking portion 722 to leave the lower end of the burr removal hole 21, and the plate part 1 comes out of the burr removal hole 21 and is separated from the lower die 2. Specifically, when the plate part 1 contacts the blocking portion 722 of the blocking block 72 through the burr removal hole 21, the pushing block 71 presses against the thrust slope 721 of the blocking block 72, and the blocking block 72 is pushed by the pushing block 71 and starts to move outward until its blocking portion 722 leaves the lower end of the burr removal hole 21, so that the deburred plate part 1 can pass through the burr removal hole 21 and the blocking block 72 at a downward speed, and then separate from the burr removal device and fall off, and the burr removal work of a plate part 1 is completed.

[0067] From the above, it can be seen that the deburring device and method of the present application can automatically and smoothly complete the removal of burrs on the side surface of the plate part 1. The operation is simple, which can greatly reduce labor costs, improve production efficiency, reduce production costs, and has good deburring effect and high-quality parts.

[0068] In summary, the invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0069] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A burr removal device for plate parts, used for removing burrs on the side surface of a plate part (1), characterized in that: The invention comprises a lower concave die (2), an upper convex die (3) located above the lower concave die (2), and a clamping drive mechanism for driving the upper convex die (3) to move up and down, wherein a puncture removal through hole (21) is provided in the middle of the lower concave die (2), the contour shape of the puncture removal through hole (21) is the same as the contour shape of the side edge of the plate part (1), so that the plate part (1) can be exactly located in the puncture removal through hole (21), and the clamping drive mechanism can drive the upper convex die (3) to enter or leave the puncture removal through hole (21); when the plate part (1) is located in the puncture removal through hole (21), the gap between the two is 0.02 to 0.04 mm; the contour shape of the side edge of the upper convex die (3) is the same as the contour shape of the side edge of the plate part (1); The shape of the burr is exactly the same and is aligned with the burr removal hole (21); the outer edge of the plate part (1) has a protrusion (11), and the burr removal device also includes a limiting guide block (6) fixedly arranged on the upper end of the lower die (2) and located around the burr removal hole (21); the burr removal hole (21) includes a protruding slot (211) corresponding to the protrusion (11); the limiting guide block (6) is provided with a vertically extending guide slot (61) on the surface facing the burr removal hole (21), and the cross-section of the guide slot (61) gradually decreases from top to bottom; the shape of the lower end of the guide slot (61) is the same as the shape of the protruding slot (211) and is relatively aligned.

2. The burr removal device according to claim 1, characterized in that: The invention comprises a sliding guide mechanism, wherein the sliding guide mechanism comprises a vertically arranged sliding guide rod (81) and a sliding sleeve (82) sleeved on the sliding guide rod (81); the sliding guide rod (81) is fixed to a lower concave die (2), and the sliding sleeve (82) is fixed to an upper convex die (3).

3. The burr removal device according to claim 1, characterized in that: It comprises a lower die fixing plate (4) and an upper die fixing plate (5), wherein the lower concave die (2) is fixedly mounted on the upper end of the lower die fixing plate (4), the upper convex die (3) is fixedly mounted on the lower end of the upper die fixing plate (5), and the die closing drive mechanism is connected to the upper die fixing plate (5).

4. The burr removal device according to claim 1, characterized in that: The mold closing drive mechanism comprises a telescopic power cylinder (9), the telescopic power cylinder (9) is arranged vertically, and the piston rod is facing, and the upper punch (3) is fixedly connected to the piston rod.

5. The burr removal device according to claim 1, characterized in that: The anti-drop mechanism also includes a blocking block (72) and a blocking driving structure for driving the blocking block (72) to move, wherein the blocking block (72) includes a blocking portion (722) extending into the lower end of the puncture removal hole (21), and when the upper punch (3) pushes the plate part (1) downward to the lower end of the puncture removal hole (21), the blocking driving structure drives the blocking block (72) to move to the blocking portion (722) to leave the lower end of the puncture removal hole (21).

6. The burr removal device according to claim 5, characterized in that: The blocking block (72) is provided with an upward thrust inclined surface (721), and the blocking driving structure comprises a pushing block (71) arranged above the thrust inclined surface (721). The pushing block (71) moves up and down synchronously with the upper punch (3), and when the blocking block (72) is pressed against the thrust inclined surface (721), the blocking block (72) can be pushed to move laterally.

7. A method for removing burrs from a plate part, characterized in that: The burr removal device according to claim 1 is used, comprising the following steps: S1, in the initial stage, the upper punch (3) and the lower die (2) are in a separated state, the plate part (1) to be deburred is placed on the lower die (2), and the plate part (1) is kept completely aligned with the deburring through hole (21); S2, preparation stage, controlling the action of the mold clamping drive mechanism, driving the upper punch (3) to move downward and abut against the upper end of the plate part (1), pushing the plate part (1) to move downward to the upper end of the puncture removal through hole (21); S3, deburring stage, the upper punch (3) continues to move downward, pushing the plate part (1) into the burr removal hole (21) of the lower die (2). In the process of passing through the burr removal hole (21), the thick burrs on the side surface of the plate part (1) are removed as a whole by the extrusion and cutting action between the plate part (1) and the lower die (2).

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