High-strength plastic mold punching equipment and production process thereof

Abstract

The invention relates to the field of punching machine tools, in particular to high-strength plastic mold punching equipment and a production process thereof. The invention provides high-strength plastic mold punching equipment which comprises a dust removal clamp, a proximity switch is installed on the dust removal clamp, and the detection face of the proximity switch faces the clamping end of the proximity switch. A floating seat is arranged on the dust removal clamp, the floating seat is elastically connected with the dust removal clamp, and the floating seat is attached to the detection surface of the proximity switch. And when the floating seat passes through the detection surface of the proximity switch, the side wall of the floating seat scrapes scraps on the detection surface of the proximity switch. The floating seat is arranged at the position attached to the detection surface close to the quick switch, so that the detection surface close to the quick switch can be cleaned when the floating seat slides up and down. And by arranging a guide insertion block and matching with a guide groove, it is ensured that the dust removal clamp and the positioning clamp are aligned and folded, so that the limiting groove and the clamping groove accurately position the workpiece.

Description

Technical Field

[0001] The invention relates to the field of punching machine tools, and in particular to a high-strength plastic mold punching device and a production process thereof. Background Art

[0002] When processing holes in high-strength plastic molds, a punching machine is used. A boring tool is used on the punching machine to cold-process holes on the surface of the high-strength plastic mold. Among them, in the automatic feeding mechanism of the punching machine, a proximity switch is used to detect and judge whether the material is correctly loaded. However, since a large amount of debris is generated when boring holes in high-strength plastic molds, and the proximity switch is usually installed on a fixture to facilitate tracking and detecting the material, the debris can easily stick to the detection head of the proximity switch and interfere with the detection of the proximity switch. Therefore, it is necessary to design a high-strength plastic mold punching equipment and its production process. Summary of the invention

[0003] The purpose of the present invention is to provide a high-strength plastic mold punching device and a production process thereof to solve the above problems.

[0004] In order to achieve the above object, the present invention provides a high-strength plastic mold punching device, comprising: a dust removal fixture, on which a proximity switch is installed, and a detection surface of the proximity switch faces a clamping end of the proximity switch; and The dust removal fixture is provided with a floating seat, the floating seat is elastically connected to the dust removal fixture, and the floating seat is arranged in contact with the detection surface of the proximity switch; wherein When the floating seat passes the detection surface of the proximity switch, the side wall of the floating seat scrapes off the debris on the detection surface of the proximity switch.

[0005] Furthermore, the bottom of the dust removal fixture has a matching plate, and a telescopic spring is arranged on the matching plate. One end of the telescopic spring is connected to the bottom of the floating seat, and the other end is connected to the matching plate.

[0006] Furthermore, a fixed seat is installed on one side of the floating seat, the fixed seat has a curved surface, and the floating seat also has a curved surface; The floating seat is provided with a limiting groove, and the limiting groove is located between the arc surface of the fixed seat and the arc surface of the floating seat.

[0007] Furthermore, the punching machine tool further comprises a processing seat and a positioning fixture, and the positioning fixture and the dust removal fixture are respectively arranged on both sides of the processing seat; The positioning fixture corresponds to the dust removal fixture; The positioning fixture has a clamping seat on one side facing the dust removal fixture, and the clamping seat is provided with a clamping groove, which corresponds to the limiting groove.

[0008] Furthermore, a guide plug is provided on one side of the floating seat, a guide groove is provided on the clamping seat, and a sinking inclined surface is provided inside the guide groove; The guide plug block is provided with alignment inclined surfaces on both sides along the width direction.

[0009] Furthermore, the drilling machine tool also includes a support frame, on which two driving cylinders are relatively installed, and the positioning fixture and the dust removal fixture are respectively installed on the movable ends of the two driving cylinders.

[0010] Furthermore, an adjustment plate is provided on the support frame, and an end of the adjustment plate extends to below the floating seat; and A lifting inclined surface is formed on one side of the extension plate facing the floating seat.

[0011] Furthermore, a material box is also provided on the support frame, and the material box is located directly above the processing seat; The material box has a storage space inside, and a plurality of workpieces are stacked in sequence in the storage space along the vertical direction; A U-shaped frame is provided at the bottom of the material box, and a first insertion rod and a second insertion rod are provided on the U-shaped frame; The first insertion rod and the second insertion rod are spaced apart in the vertical direction, and the spacing distance is slightly greater than the width of a workpiece; and The first insertion rod and the second insertion rod are inserted into the storage space in turn.

[0012] Furthermore, a circulating cylinder is installed on the support frame, and the movable end of the circulating cylinder is connected to the U-shaped frame; The movable end of the circulating cylinder is arranged parallel to the first insertion rod and the second insertion rod.

[0013] Furthermore, a rotating shaft is installed on the processing seat, and a boring tool is installed on the end of the rotating shaft.

[0014] In addition, the present invention also provides a high-strength plastic mold production process, using the high-strength plastic mold punching device as described above, characterized in that: When the floating seat passes the detection surface of the proximity switch, the side wall of the floating seat scrapes off the debris on the detection surface of the proximity switch.

[0015] Compared with the prior art, the present invention has the following beneficial effects: by arranging a floating seat at a position close to the detection surface of the quick-closed closure, the floating seat can clean the detection surface close to the quick-closed closure when sliding up and down. By arranging a guide plug and cooperating with the guide groove, it is ensured that the dust removal fixture and the positioning fixture are aligned and closed, so that the limit groove and the clamping groove can accurately position the workpiece. By arranging the guide plug, when the dust removal fixture and the positioning fixture are separated, the workpiece is retained in the limit groove to avoid the disorderly falling of the workpiece. When the driving cylinder drives the floating seat to move to abut against the lifting inclined surface, the lifting inclined surface pushes the floating seat up, so that the floating seat lifts the workpiece and disengages it from the guide groove to achieve vertex unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 A partial stereoscopic view of the punching machine tool of the present invention is shown; Figure 2 Shows Figure 1 A partial enlarged view of part A; Figure 3 A schematic structural diagram of the processing seat of the present invention is shown; Figure 4 A schematic structural diagram of the support frame of the present invention is shown; Figure 5 Shows Figure 4 A partial enlarged view of part B; Figure 6 A cross-sectional view of a positioning fixture of the present invention is shown; Figure 7 The schematic diagram of the structure of the floating seat of the present invention is shown.

[0018] In the figure: 1. Dust removal fixture; 11. Proximity switch; 12. Matching plate; 13. Telescopic spring; 14. Fixed seat; 2. floating seat; 22. limiting groove; 23. guide plug; 231. alignment slope; 3. Processing seat; 31. Rotating shaft; 4. Positioning fixture; 41. Clamping seat; 42. Clamping groove; 43. Guide groove; 431. Sinking slope; 5. Support frame; 51. Driving cylinder; 52. Adjusting plate; 521. Lifting slope; 53. Material box; 54. U-shaped frame; 541. First insertion rod; 542. Second insertion rod; 55. Circulating cylinder. DETAILED DESCRIPTION

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0020] like Figures 1 to 7 As shown, the embodiment of the present disclosure provides a punching machine tool, including: a workbench, a rectangular frame-shaped support frame 5 is arranged on the workbench, a material box 53 is fixedly installed on the top of the support frame 5, the material box 53 is a long box-shaped structure as a whole, the material box 53 is arranged in the vertical direction, and there is a storage space inside the material box 53, and a number of workpieces in the initial state are stacked in sequence in the vertical direction. In this embodiment, the workpiece refers to a high-strength plastic mold, which is cylindrical, and it is necessary to perform a punching operation on the surface by the punching machine tool shown in this embodiment, and then perform material unloading. There is a processing station directly below the material box 53. After the bottom of the material box 53 is opened, the workpiece located at the bottom can fall to the processing station in sequence under the action of gravity and be positioned for subsequent punching processing.

[0021] like Figure 2 As shown, in order to achieve the above-mentioned effect of closing the bottom of the material box 53 and driving the workpieces to fall in sequence in a timely manner, in at least one embodiment, a U-shaped frame 54 is slidably installed at the bottom of the material box 53, and the U-shaped frame 54 is arranged around the material box 53. The U-shaped frame 54 is provided with a first plug rod 541 and a second plug rod 542, and the first plug rod 541 and the second plug rod 542 are respectively installed on the opposite sides of the U-shaped frame 54, and the side wall of the bottom of the material box 53 is also correspondingly provided with two through holes, and the first plug rod 541 and the second plug rod 542 are respectively inserted into the two through holes. Further, the first plug rod 541 and the second plug rod 542 are arranged at intervals in the vertical direction, and the interval distance is slightly greater than the width of a workpiece. In this embodiment, taking the example that the height of the first plug rod 541 is higher than the second plug rod 542, in the initial state, that is, the state of the material box 53 being closed, the second plug rod 542 completely penetrates the storage space, and at this time, the second plug rod 542 blocks the opening at the bottom of the material box 53, thereby playing the role of closing the material box 53, and at this time, the first plug rod 541 is in a state of being completely out of the storage space; when the material box 53 is open, the first plug rod 541 is inserted into the storage space, and the second plug rod 542 is out of the storage space. At this time, the first plug rod 541 blocks the workpiece of the lowest layer and the workpiece of the upper layer, thereby blocking the workpiece above the lowest layer from falling, and the workpiece of the lowest layer can fall after the second plug rod 542 is out of the storage space. The first plug rod 541 and the second plug rod 542 are inserted into the storage space in turn. This can achieve the effect of closing the material box 53 in the initial state and driving the workpieces to fall in sequence in a timely manner.

[0022] In order to further achieve the effect of automatically controlling the reciprocating sliding of the U-shaped frame 54, in at least one embodiment, as a preferred embodiment, Figure 3 As shown, a circulating cylinder 55 is also installed on the support frame 5, and the movable end of the circulating cylinder 55 is connected to the U-shaped frame 54. The movable end of the circulating cylinder 55 is arranged in parallel with the first insertion rod 541 and the second insertion rod 542. Through the above arrangement, when the circulating cylinder 55 is started, the U-shaped frame 54 can be driven to slide horizontally through the movable end, thereby driving the first insertion rod 541 and the second insertion rod 542 to be inserted into the storage space in a circular manner.

[0023] In order to realize the function of drilling a workpiece, in this embodiment, a processing seat 3 is installed on the workbench, and the processing station is located on the processing seat 3. Specifically, a rotating shaft 31 is installed on the processing seat 3, and a boring tool is installed at the end of the rotating shaft 31 to form the processing station. Optionally, a cylinder is installed on the workbench, and the movable end of the cylinder is connected to the processing seat 3 to drive the processing seat 3 to slide horizontally, and drive the rotating shaft 31 and the boring tool to drill the workpiece in the horizontal direction.

[0024] It should be noted that in the prior art, when drilling a workpiece, a fixture is used to clamp the workpiece unloaded from the material box 53, so that the workpiece is kept in a state of being limited on the rotating shaft 31 during drilling, and the proximity switch 11 is used to detect and judge whether the workpiece is correctly loaded. However, since a high-strength plastic mold will generate a large amount of debris when boring, and the proximity switch 11 is usually installed on a fixture to facilitate tracking and detecting the material, the debris can easily stick to the detection head of the proximity switch 11 and interfere with the detection of the proximity switch 11.

[0025] In at least one embodiment, Figure 4As shown, two driving cylinders 51 are relatively installed on the support frame 5, and the two driving cylinders 51 are respectively located on the left and right sides of the material box 53, and the movable ends of the two driving cylinders 51 are respectively installed with a dust removal fixture 1 and a positioning fixture 4. The two driving cylinders 51 are both arranged horizontally, and the height of the two driving cylinders 51 is flush with the height of the rotating shaft 31. When the two driving cylinders 51 are started, the dust removal fixture 1 and the positioning fixture 4 can be driven to approach or move away from each other. Among them, when the workpiece is ready to be loaded, the two driving cylinders 51 drive the dust removal fixture 1 and the positioning fixture 4 to approach until they reach a position that can receive the workpiece, and then the workpiece falls between the dust removal fixture 1 and the positioning fixture 4, and the two driving cylinders 51 continue to drive the dust removal fixture 1 and the positioning fixture 4 to approach to clamp and position the workpiece. A proximity switch 11 is installed on the dust removal fixture 1, and the detection surface of the proximity switch 11 faces the clamping end of the proximity switch 11. When the dust removal fixture 1 and the positioning fixture 4 are close to each other, it can be determined whether there is a workpiece between the dust removal fixture 1 and the positioning fixture 4 through the proximity switch 11. Further, the dust removal fixture 1 is provided with a floating seat 2, the floating seat 2 is elastically connected to the dust removal fixture 1, and the floating seat 2 is arranged to fit the detection surface of the proximity switch 11. Through the above arrangement, when the floating seat 2 passes the detection surface of the proximity switch 11, the side wall of the floating seat 2 scrapes off the debris on the detection surface of the proximity switch 11.

[0026] In order to achieve the effect of elastic connection between the floating seat 2 and the dust removal fixture 1, in at least one embodiment, as an option, Figure 5 As shown, the bottom of the dust removal fixture 1 has a matching plate 12, which extends to the bottom of the floating seat 2. A telescopic spring 13 is provided on the matching plate 12, one end of the telescopic spring 13 is connected to the bottom of the floating seat 2, and the other end is connected to the matching plate 12. The floating seat 2 can slide up and down under the action of the telescopic spring 13, that is, it slides down to clamp the workpiece, and slides up to scrape the debris on the detection surface of the proximity switch 11 and then resets.

[0027] In order to achieve the effect of the dust removal fixture 1 reliably clamping the workpiece through the floating seat 2, in at least one embodiment, as a preferred embodiment, Figure 4 As shown, a fixed seat 14 is installed on one side of the floating seat 2, and the fixed seat 14 has a curved surface, and the floating seat 2 also has a curved surface. Figure 5As shown, the floating seat 2 is provided with a limiting groove 22, and the limiting groove 22 is located between the arc surface of the fixed seat 14 and the arc surface of the floating seat 2. The width of the limiting groove 22 corresponds to the thickness of the base of the workpiece, so that after the workpiece falls, the base of the workpiece falls into the limiting groove 22 between the floating seat 2 and the fixed seat 14 to limit the workpiece. On the other hand, the positioning fixture 4 has a clamping seat 41 on the side facing the dust removal fixture 1, and the clamping seat 41 also has an arc surface. The clamping seat 41 is provided with a clamping groove 42, and the clamping groove 42 corresponds to the limiting groove 22. The dust removal fixture 1 fits the circular outer wall of the workpiece through the arc surfaces of the floating seat 2 and the fixed seat 14, and the positioning fixture 4 fits the circular outer wall of the workpiece through the arc surface of the clamping seat 41. The dust removal fixture 1 limits the base of the workpiece from both sides through the limiting groove 22 of the floating seat 2 and the clamping groove 42 of the positioning fixture 4 to reliably position the workpiece.

[0028] In order to guide the dust removal fixture 1 and the positioning fixture 4 to approach each other, the limit groove 22 and the clamping groove 42 are correctly aligned, in at least one embodiment, as a preferred embodiment, Figure 5 As shown, a guide block 23 is provided on one side of the floating seat 2, a guide groove 43 is provided on the clamping seat 41, and alignment slopes 231 are provided on both sides of the guide block 23 along the width direction. Figure 6 As shown, the guide groove 43 has a downward inclined surface 431 inside. With the above arrangement, when the floating seat 2 is close to the clamping seat 41, the guide plug 23 is inserted into the guide groove 43 through the alignment inclined surface 231 and slides downward along the downward inclined surface 431 to ensure that the floating seat 2 is aligned with the clamping seat 41, thereby ensuring that the limit groove 22 is aligned with the clamping groove 42.

[0029] On the other hand, when the dust removal fixture 1 and the positioning fixture 4 receive the workpiece, the floating seat 2 and the clamping seat 41 are not closed, and the guide block 23 has been inserted into the guide groove 43. At this time, the guide block 23 can stop the workpiece from continuing to descend, and prevent the workpiece from detaching from between the floating seat 2 and the clamping seat 41. Further, the guide block 23 can guide the workpiece to roll into the clamping groove 42 first. At this time, the floating seat 2 is still in a sliding state and is unstable. After the workpiece rolls into the clamping groove 42, the clamping seat 41 is a fixed part, and its positioning of the workpiece is more stable.

[0030] In order to achieve the effect of driving the floating seat 2 to rise and scraping off the debris on the detection surface of the proximity switch 11, in at least one embodiment, as a preferred embodiment, Figure 7As shown, an adjustment plate 52 is also provided on the support frame 5, and the end of the adjustment plate 52 extends to the bottom of the floating seat 2. A lifting slope 521 is provided on the side of the extension plate facing the floating seat 2. When the driving cylinder 51 drives the dust removal fixture 1 to retreat, when the floating seat 2 is in contact with the lifting slope 521, the lifting slope 521 pushes the floating seat 2 to rise, so that the floating seat 2 can remove the debris near the detection surface of the switch 11. On the other hand, during the retreat of the dust removal fixture 1, the floating seat 2 limits the workpiece in the limiting groove 22 through the guide block 23 and the fixed block, so that the workpiece moves with the floating seat 2. When the lifting slope 521 pushes the floating seat 2 to rise, the floating seat 2 lifts the workpiece through the limiting groove 22, so that the workpiece can be flipped out of the limiting groove 22, thereby realizing stable fixed-point unloading of the workpiece.

[0031] The disclosed embodiment also provides a high-strength plastic mold production process, using the high-strength plastic mold punching equipment as shown in Example 1, and the specific high-strength plastic mold production process is as follows: when the workpiece falls from the material box 53, the dust removal fixture 1 and the positioning fixture 4 clamp the workpiece from both sides respectively; during the retraction process of the dust removal fixture 1, the floating seat 2 limits the workpiece in the limiting groove 22 through the guide block 23 and the fixed block, so that the workpiece moves with the floating seat 2, and when the lifting ramp 521 pushes the floating seat 2 to rise, the floating seat 2 lifts the workpiece through the limiting groove 22, so that the workpiece is flipped out of the limiting groove 22; when the floating seat 2 passes the detection surface of the proximity switch 11, the side wall of the floating seat 2 scrapes off the debris on the detection surface of the proximity switch 11.

[0032] It is worth mentioning that the technical features such as other components involved in the patent application of this invention should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field, and should not be regarded as the inventive point of this patent. This patent will not be further elaborated.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-strength plastic mold punching device, characterized in that: include: A dust removal clamp (1), wherein a proximity switch (11) is mounted on the dust removal clamp (1), and a detection surface of the proximity switch (11) faces a clamping end of the proximity switch (11); and The dust removal fixture (1) is provided with a floating seat (2), the floating seat (2) is elastically connected to the dust removal fixture (1), and the floating seat (2) is arranged to fit the detection surface of the proximity switch (11); wherein When the floating seat (2) passes the detection surface of the proximity switch (11), the side wall of the floating seat (2) scrapes away debris on the detection surface of the proximity switch (11).

2. The high-strength plastic mold punching device according to claim 1, characterized in that: The bottom of the dust removal fixture (1) has a matching plate (12), and a telescopic spring (13) is arranged on the matching plate (12); one end of the telescopic spring (13) is connected to the bottom of the floating seat (2), and the other end is connected to the matching plate (12).

3. The high-strength plastic mold punching device according to claim 1, characterized in that: A fixed seat (14) is installed on one side of the floating seat (2), the fixed seat (14) has a curved surface, and the floating seat (2) also has a curved surface; A limiting groove (22) is provided on the floating seat (2), and the limiting groove (22) is located between the arc surface of the fixed seat (14) and the arc surface of the floating seat (2).

4. The high-strength plastic mold punching device according to claim 3, characterized in that: The punching machine tool further comprises a processing seat (3) and a positioning fixture (4), wherein the positioning fixture (4) and the dust removal fixture (1) are respectively arranged on two sides of the processing seat (3); The positioning fixture (4) corresponds to the dust removal fixture (1); The positioning fixture (4) has a clamping seat (41) on one side facing the dust removal fixture (1), and a clamping groove (42) is provided on the clamping seat (41), and the clamping groove (42) corresponds to the limiting groove (22).

5. The high-strength plastic mold punching device according to claim 4, characterized in that: A guide plug block (23) is provided on one side of the floating seat (2), a guide groove (43) is provided on the clamping seat (41), and a sinking inclined surface (431) is provided inside the guide groove (43); The guide plug block (23) is provided with alignment inclined surfaces (231) on both sides along the width direction.

6. The high-strength plastic mold punching device according to claim 4, characterized in that: The drilling machine tool further comprises a support frame (5), on which two driving cylinders (51) are mounted relatively to each other, and the positioning fixture (4) and the dust removal fixture (1) are respectively mounted on the movable ends of the two driving cylinders (51).

7. The high-strength plastic mold punching device according to claim 6, characterized in that: The support frame (5) is further provided with an adjustment plate (52), and an end of the adjustment plate (52) extends to below the floating seat (2); and A lifting inclined surface (521) is provided on one side of the extension plate facing the floating seat (2).

8. The high-strength plastic mold punching device according to claim 6, characterized in that: A material box (53) is also provided on the support frame (5), and the material box (53) is located directly above the processing seat (3); The material box (53) has a storage space inside, and a plurality of workpieces are stacked in sequence in the storage space along the vertical direction; A U-shaped frame (54) is provided at the bottom of the material box (53), and a first insertion rod (541) and a second insertion rod (542) are provided on the U-shaped frame (54); The first insertion rod (541) and the second insertion rod (542) are spaced apart in the vertical direction, and the spacing distance is slightly greater than the width of a workpiece; and The first insertion rod (541) and the second insertion rod (542) are inserted into the storage space in turn.

9. The high-strength plastic mold punching device according to claim 8, characterized in that: A circulating cylinder (55) is also mounted on the support frame (5), and a movable end of the circulating cylinder (55) is connected to the U-shaped frame (54); The movable end of the circulating cylinder (55) is arranged parallel to the first insertion rod (541) and the second insertion rod (542).

10. The high-strength plastic mold punching device according to claim 1, characterized in that: A rotating shaft (31) is mounted on the processing seat (3), and a boring tool is mounted on the end of the rotating shaft (31).

11. A high-strength plastic mold production process, using the high-strength plastic mold punching device according to any one of claims 1 to 10, characterized in that: When the floating seat (2) passes the detection surface of the proximity switch (11), the side wall of the floating seat (2) scrapes away debris on the detection surface of the proximity switch (11).

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