Punching structure and punching equipment for outer water cutting and inner LIP

Abstract

The utility model discloses a punching structure and punching equipment for an outer water cut and an inner LIP, and relates to the technical field of automobile part machining equipment.The punching structure for the outer water cut and the inner LIP comprises a slitting device, the slitting device comprises a first positioning assembly and a slitting knife capable of rebounding, and the first positioning assembly is used for positioning the end of the outer water cut; the to-be-cut position of the outer water cutting is located on the motion path of the cutting knife; the cutting device is arranged close to the slitting device, the cutting device comprises a second positioning assembly and a cutting knife, the second positioning assembly comprises a first positioning piece and a second positioning piece, the first positioning piece is used for positioning and guiding the outer water cutting part, the second positioning piece is used for positioning the end face of the outer water cutting part, and the cutting knife is located between the first positioning piece and the second positioning piece; and in the process that the end part of the slit outer water cutting part moves from the first positioning part to the second positioning part, the inner Lip from the end part of the outer water cutting part to the slitting position is segmented through the segmentation knife. According to the punching structure for the outer water cutting and the inner LIP, the reject ratio can be effectively reduced.

Description

Technical Field

[0001] This application relates to the field of automotive parts processing equipment technology, and in particular to a punching structure and punching equipment for external water-cutting and internal LIP. Background Technology

[0002] In the assembly process, many external water cutters need to assemble end caps. However, the inner lip interferes with the end cap, so the inner lip needs to be removed at the corresponding position at the end before assembly. After removing the inner lip, the end cap can be assembled. The general process is to remove the inner lip at the corresponding position by performing a variable cross-section removal during the re-extrusion process. In the re-extrusion process, there is a forming die, which is designed according to the cross-section. Normal re-extrusion is a constant cross-section extrusion. To achieve variable cross-section removal of the inner lip, a program is set in the equipment during the production process. The equipment program controls a cutting mechanism to cut off the inner lip position of the forming die. When the length reaches the required length, the equipment program controls the cutting mechanism to return to its original position, and the inner lip of the product is extruded normally. However, the existing variable cross-section process will cause changes in the pressure of the extrusion molding machine, which can easily lead to defects such as vibration marks and dents on the product appearance. The scrap rate for products with poor appearance can reach 10-15%. Utility Model Content

[0003] This application aims to solve one of the aforementioned technical problems in the prior art. To this end, embodiments of this application provide a punching structure for an external water-cutting inner LIP.

[0004] This application also provides a punching device.

[0005] According to an embodiment of the first aspect of this application, a punching structure with an external water-cutting inner LIP is provided, including...

[0006] The slitting device includes a first positioning component and a spring-back slitting blade. The first positioning component is used to position the end of the outer water cutter so that the slitting position of the outer water cutter is on the movement path of the slitting blade.

[0007] A dividing device is disposed near the slitting device. The dividing device includes a second positioning component and a dividing blade. The second positioning component includes a first positioning member and a second positioning member. The first positioning member is used for positioning and guiding the outer water cutter, and the second positioning member is used for positioning the end face of the outer water cutter. The dividing blade is located between the first positioning member and the second positioning member. During the process of the slitting end of the outer water cutter moving from the first positioning member to the second positioning member, the inner lip of the outer water cutter from the end of the outer water cutter to the slitting position is divided by the dividing blade.

[0008] The aforementioned punching structure for the inner LIP of the outer water cutter has at least the following beneficial effects: To achieve the removal of the inner LIP at the end of the outer water cutter, the process is carried out in two steps. First, the inner LIP is cut using a slitting device, and then the inner LIP separated at the end is removed using a dividing device. Specifically, the end of the outer water cutter is positioned by a first positioning component so that the position to be cut is on the movement path of the slitting blade. The slitting blade punches a slit in the inner LIP of the outer water cutter to facilitate subsequent dividing. The cut outer water cutter is removed from the slitting device and then placed into the dividing device. The outer water cutter is positioned and guided by a first positioning member. During the movement of the end of the outer water cutter from the first positioning member to the second positioning member, the inner LIP at the end of the outer water cutter is divided by the dividing blade. Compared to the previous method of removing part of the inner Lip by using an external water-cutting and re-pressing process with a variable cross-section, this application adopts a constant cross-section re-pressing process followed by a punching process. Combined with the punching structure of the inner Lip from the external water-cutting process, the removal of part of the inner Lip is completed in two steps: slitting and splitting. This can significantly improve the removal efficiency and accuracy of the inner Lip and effectively reduce the probability of defective products.

[0009] According to the punching structure of the external water-cutting inner LIP according to the first aspect embodiment of this application, the first positioning component includes a third positioning member and a fourth positioning member. The third positioning member is used for positioning and guiding the external water-cutting, and the fourth positioning member is used for positioning the end face of the external water-cutting. The slitting blade is close to the end of the first positioning member and is located between the first positioning member and the second positioning member. The movement direction of the slitting blade is perpendicular to the feeding direction of the external water-cutting.

[0010] According to the punching structure of the outer water-cutting inner LIP described in the first aspect embodiment of this application, the first positioning component further includes a first guiding member, the first guiding member being close to the slitting blade, the first guiding member being used to make the inner LIP of the outer water-cutting conform to the slitting blade, so that the slitting position of the outer water-cutting is on the movement path of the cutting edge of the slitting blade.

[0011] According to the punching structure of the external water-cutting inner LIP described in the first aspect embodiment of this application, the first guiding member includes a first guide wheel that can rotate.

[0012] According to the punching structure of the external water-cutting internal LIP described in the first aspect embodiment of this application, the end of the first positioning member is connected to the blade of the dividing knife, the shape of the blade is similar to the shape of the first positioning member, and the cutting edge of the blade is close to the end of the first positioning member.

[0013] According to the punching structure of the external water-cutting internal LIP described in the first aspect embodiment of this application, a docking structure is provided between the end of the first positioning member and the blade portion.

[0014] According to the punching structure of the external water-cutting internal LIP according to the first aspect embodiment of this application, the docking structure includes a docking groove and a docking protrusion, wherein the docking groove is disposed at the end of the blade and the docking protrusion is disposed at the end of the first positioning member; or, the docking groove is disposed at the end of the first positioning member and the docking protrusion is disposed at the end of the blade.

[0015] According to the punching structure of the outer water-cutting inner LIP described in the first aspect embodiment of this application, the second positioning component further includes a second guiding member, the second guiding member being close to the end of the blade, the second guiding member being used to make the outer water-cutting inner LIP conform to the surface of the blade so that the cutting surface can be collinear with the dividing position of the inner LIP.

[0016] According to the punching structure of the external water-cutting inner LIP described in the first aspect of this application, the second guide member includes a rotatable second guide wheel.

[0017] According to an embodiment of the second aspect of this application, a punching device is provided, including the punching structure of the external water-cutting inner LIP described above.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The present application will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a schematic cross-sectional view of the external water shear according to an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the punching structure of the external water-cutting inner LIP in the embodiments of this application;

[0022] Figure 3 This is a schematic diagram of the slitting device in an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the operation of the slitting device in the embodiments of this application. Figure 1 ;

[0024] Figure 5 This is a schematic diagram of the operation of the slitting device in the embodiments of this application. Figure 2 ;

[0025] Figure 6 This is a schematic diagram of the operation of the slitting device in the embodiments of this application. Figure 3 ;

[0026] Figure 7This is a schematic diagram of the connection between the slitting blade and the slider in an embodiment of this application. Figure 1 ;

[0027] Figure 8 This is a schematic diagram of the connection between the slitting blade and the slider in an embodiment of this application. Figure 2 ;

[0028] Figure 9 This is a schematic diagram of the slitting blade in an embodiment of this application;

[0029] Figure 10 This is a schematic diagram of the structure of the cut outer water cutter in an embodiment of this application;

[0030] Figure 11 This is a schematic diagram of the segmentation device in an embodiment of this application;

[0031] Figure 12 yes Figure 11 Enlarged view of point A in the middle;

[0032] Figure 13 This is a schematic diagram of the segmented structure in an embodiment of this application.

[0033] Reference numerals: outer water cutter 100, inner Lip 110, slit 111, inner groove of opening 120, slitting device 200, first fixed seat 210, slider 220, pin 221, limiting block 230, fourth positioning member 240, fifth positioning member 250, fixing block 260, bolt 261, first guide wheel 262, slitting blade 270, cutting edge 271, groove 272, third positioning member 280, return spring 290, dividing device 300, second fixed seat 310, mounting groove 311, first positioning member 320, mating protrusion 321, second guide member 330, dividing blade 340, blade part 341, mating groove 3411, fixing part 342, second positioning member 350, cutting block 400. Detailed Implementation

[0034] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0035] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0036] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0037] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0038] in, Figure 1 A cross-sectional schematic diagram of the outer water cutter 100 is provided. The width of the inner groove 120 of the cross-section opening of the outer water cutter 100 product is only about 4mm. It adopts a conventional mold structure, and the mold parts have poor strength, which cannot guarantee mass production. Therefore, the variable cross-section of the inner Lip 110 of the outer water cutter 100 is produced by the double extrusion variable cross-section process. However, the variable cross-section process will cause changes in the pressure of the extrusion molding machine, which can easily lead to defects such as shock marks and dents in the appearance of the product.

[0039] To solve the above problems, such as Figure 2 As shown, this application provides a punching structure for an inner Lip of an outer water cutter, including a slitting device 200 and a dividing device 300. Compared with the original process of removing part of the inner Lip 110 by repeating the variable cross-section process of the outer water cutter 100, this application adopts a constant cross-section repeating process followed by a punching process. Combined with the punching structure for the inner Lip 110 of the outer water cutter 100, the removal of part of the inner Lip 110 is completed in two steps: slitting and dividing. This can significantly improve the removal efficiency and accuracy of the inner Lip 110 and effectively reduce the probability of defective products.

[0040] The slitting device 200 includes a first positioning component and a spring-loaded slitting blade 270. The first positioning component is used to position the end of the outer water cutter 100 so that the position to be slitted on the outer water cutter 100 is on the movement path of the slitting blade 270. When performing the slitting operation, the outer water cutter 100 is first placed into the slitting device 200, and the end of the outer water cutter 100 is positioned by the first positioning component so that the position to be slitted on the outer water cutter 100 is on the movement path of the slitting blade 270. The slitting blade 270 completes the punching action under the action of external drive, and punches the slitting opening 111 on the inner Lip 110 of the outer water cutter 100 by the slitting blade 270 to facilitate subsequent division.

[0041] The dividing device 300 is positioned close to the slitting device 200. The dividing device 300 includes a second positioning component and a dividing blade 340. The second positioning component includes a first positioning member 320 and a second positioning member 350. The first positioning member 320 is used for positioning and guiding the outer water cutter 100, and the second positioning member 350 is used for positioning the end face of the outer water cutter 100. The dividing blade 340 is located between the first positioning member 320 and the second positioning member 350. During the process of the cut outer water cutter 100 moving from the first positioning member 320 to the second positioning member 350, the inner Lip 110 of the end of the outer water cutter 100 is divided by the dividing blade 340.

[0042] It should be noted that the dividing blade 340 is fixedly set. After the end of the cut outer water cutter 100 moves from the first positioning member 320 to the second positioning member 350 and is positioned in place, the dividing blade 340 completely removes the inner Lip 110. Then, the outer water cutter 100 is removed from the dividing device 300, thus completing the removal of the inner Lip 110 from the end portion of the outer water cutter 100. The entire cutting and dividing process is convenient to position and simple to operate, improving production efficiency while ensuring product yield.

[0043] In some embodiments, such as Figures 3 to 9 As shown, the first positioning component includes a third positioning member 280 and a fourth positioning member 240. The third positioning member 280 is used for positioning and guiding the outer water cutter 100, and the fourth positioning member 240 is used for positioning the end face of the outer water cutter 100. The slitting blade 270 is close to the end of the first positioning member 320 and is located between the first positioning member 320 and the second positioning member 350. The movement direction of the slitting blade 270 is perpendicular to the feeding direction of the outer water cutter 100.

[0044] The third positioning element 280 is used to position and guide the outer water cutter 100, guiding it past the slitting blade 270 and ensuring its accurate arrival at the fourth positioning element 240. With the fourth positioning element 240 cooperating with the third positioning element 280, the slitting position of the inner Lip 110 of the outer water cutter 100 can be accurately positioned below the slitting blade 270.

[0045] The shape of the third positioning member 280 is similar to that of the inner groove 120 of the opening of the outer water cutter 100, and the shape of the slitting blade 270 is also similar to that of the third positioning member 280.

[0046] The movement direction of the slitting blade 270 is perpendicular to the feeding direction of the outer water cutter 100. When not punching, the slitting blade 270 also serves as a guide. After being positioned, it does not affect the punching operation of the slitting blade 270. Furthermore, because the slitting blade 270 can automatically reset, after punching is completed, the slitting blade 270 automatically returns to a state that does not affect the entry and exit of the outer water cutter 100 into the slitting device 200.

[0047] In this embodiment, the end of the third fixing member extends close to the slitting blade 270, ensuring that there is support and positioning near the slitting position of the outer water cutter 100 during the slitting process, making the punching more accurate and stable, and also making the position of the punched slit 111 more precise.

[0048] To make the positioning of the outer water cutter 100 in the slitting device 200 more accurate, the first positioning component also includes a fifth positioning member 250. The setting of the fifth positioning member 250 makes the end positioning of the outer water cutter 100 more accurate and can avoid the deformation of the end of the outer water cutter 100 after it is positioned in the fourth positioning member 240.

[0049] In some embodiments, the first positioning component further includes a first guiding member, which is close to the slitting blade 270. The first guiding member is used to make the inner Lip 110 of the outer water cutter 100 fit against the slitting blade 270 so that the slitting position of the outer water cutter 100 is on the movement path of the cutting edge 271 of the slitting blade 270.

[0050] The first guiding component enables the inner Lip 110 of the positioned outer water cutter 100 to fit into the slitting blade 270, ensuring that the position to be slitted of the positioned outer water cutter 100 is on the movement path of the cutting edge 271 of the slitting blade 270, greatly improving the accuracy of the punching and slitting cut 111, and also preventing the inner Lip 110 from being unable to detach from the outer water cutter 100 after subsequent slitting due to insufficient punching.

[0051] In some specific embodiments, the first guiding member includes a rotatable first guiding wheel 262. By guiding the inner Lip 110 of the outer water cutter 100 to the fitting slitting blade 270 through the first guiding wheel 262, the friction of loading and unloading the outer water cutter 100 can be reduced, making loading and unloading smoother.

[0052] like Figures 4 to 6 As shown, the first guide component also includes a fixing block 260, and the first guide wheel 262 is mounted on the fixing block 260 by bolts 261. In this embodiment, the first guide wheel 262 can be a bearing.

[0053] In some specific embodiments, such as Figure 3As shown, the slitting device 200 also includes a first fixed base 210, a slider 220, and a punching block 400. The slider 220 is slidably disposed in the groove of the first fixed base 210. A limiting block 230 is provided at the groove opening 272 to prevent the slider 220 from disengaging from the groove. A return spring 290 is provided at the bottom of the groove. The slitting blade 270 is disposed on the slider 220. The punching block 400 drives the slider to slide and perform a punching action. The slider 220 then drives the slitting blade 270 to punch and cut the slit 111. Under the action of the return spring 290, the slider 220 can drive the slitting blade 270 to automatically return to its original position, without affecting the loading and unloading operation of the outer water cutter 100.

[0054] like Figures 7 to 9 As shown, the slitting blade 270 is L-shaped, with one end having a cutting edge 271 and the other end inserted into the limiting groove of the slider 220. To limit the slitting blade 270 and prevent it from dislodging from the limiting groove, the side of the slider 220 has a slot for the pin 221 to pass through, with the slot portion adjoining the limiting groove. The slitting blade 270 has a slot 272 to avoid the pin 221. When the slitting blade 270 is positioned in the limiting groove, the pin 221 inserted into the slot is engaged in the slot 272, thereby preventing the slitting blade 270 from dislodging from the limiting groove.

[0055] in, Figure 10 This is a schematic diagram of the structure of the external water cutter 100 with a slit 111.

[0056] In some embodiments, such as Figures 11 to 13 As shown, the end of the first positioning member 320 is connected to the blade portion 341 of the dividing blade 340. The shape of the blade portion 341 is similar to that of the first positioning member 320, and the cutting edge of the blade portion 341 is close to the end of the first positioning member 320. It should be noted that the shape of the first positioning member 320 is similar to the inner groove 120 of the opening of the outer water cutter 100.

[0057] The blade 341 of the dividing blade 340 also serves as a guide to ensure the accurate positioning of the outer water cutter 100. By bringing the cutting edge of the blade 341 close to the end of the first positioning member 320, the outer water cutter 100 and the blade 341 are in a state of positioning and support during the cutting process, resulting in a more precise cut surface.

[0058] In some embodiments, such as Figure 11 and Figure 12 As shown, a docking structure is provided between the end of the first positioning member 320 and the blade part 341. The docking structure facilitates the positioning and limitation of the blade part 341, and also ensures that the blade part 341 will not wobble or shift during the cutting process, thus improving the accuracy of the cutting.

[0059] In some specific embodiments, the docking structure includes a docking groove 3411 and a docking protrusion 321. The docking groove 3411 is disposed at the end of the blade part 341, and the docking protrusion 321 is disposed at the end of the first positioning member 320. The docking groove 3411 and the docking protrusion 321 enable the end of the first positioning member 320 to be quickly positioned and docked with the blade part 341.

[0060] In other embodiments, the docking groove 3411 may also be provided at the end of the first positioning member 320, and the docking protrusion 321 may also be provided at the end of the blade part 341, which also enables the end of the first positioning member 320 to be quickly positioned and docked with the blade part 341.

[0061] In some embodiments, the second positioning component further includes a second guide member 330, which is located near the end of the blade portion 341. The second guide member 330 is used to make the inner Lip 110 of the outer water cutter 100 fit against the surface of the blade portion 341 so that the cutting surface can be collinear with the dividing position of the inner Lip 110, thereby making the dividing accuracy more accurate and reducing the probability of defective products.

[0062] Specifically, the second guide member 330 includes a rotatable second guide wheel. The second guide wheel guides the inner Lip 110 of the outer water cutter 100 to the abutment dividing blade 340, and reduces the friction of loading and unloading the outer water cutter 100, making loading and unloading smoother and dividing more accurate.

[0063] In some specific embodiments, the second guide member 330 also includes a fixing block 260, and the second guide wheel is rotatably mounted on the fixing block 260 by bolts 261, wherein the second guide wheel is a bearing.

[0064] In some specific embodiments, the dividing device 300 further includes a second fixed base 310, and the second guide member 330 and the second positioning component are both disposed on the second fixed base 310.

[0065] In some embodiments, such as Figure 11 and Figure 13 As shown, the dividing blade 340 also includes a fixing part 342. In order to accurately position and limit the fixing part 342, a mounting groove 311 is provided on the second fixing seat 310. After the fixing part 342 is placed in the mounting groove 311, it is connected to the second fixing seat 310 by screws.

[0066] In some embodiments, this application also provides a punching device, which includes the punching structure of the above-described external water-cutting inner LIP.

[0067] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A punch structure of an outer water cut inner LIP, characterized in that: include The slitting device includes a first positioning component and a spring-back slitting blade. The first positioning component is used to position the end of the outer water cutter so that the slitting position of the outer water cutter is on the movement path of the slitting blade. A dividing device is disposed near the slitting device. The dividing device includes a second positioning component and a dividing blade. The second positioning component includes a first positioning member and a second positioning member. The first positioning member is used for positioning and guiding the outer water cutter, and the second positioning member is used for positioning the end face of the outer water cutter. The dividing blade is located between the first positioning member and the second positioning member. During the process of the slitting end of the outer water cutter moving from the first positioning member to the second positioning member, the inner lip of the outer water cutter from the end of the outer water cutter to the slitting position is divided by the dividing blade.

2. The punch structure of an outside-water-cut inside LIP according to claim 1, characterized in that: The first positioning component includes a third positioning member and a fourth positioning member. The third positioning member is used for positioning and guiding the outer water cutter, and the fourth positioning member is used for positioning the end face of the outer water cutter. The slitting blade is located near the end of the first positioning member and between the first positioning member and the second positioning member. The movement direction of the slitting blade is perpendicular to the feeding direction of the outer water cutter.

3. The punch structure of an outside-water-cut inside LIP according to claim 2, characterized in that: The first positioning component further includes a first guide member, which is located near the slitting blade. The first guide member is used to make the inner LIP of the outer water cutter fit against the slitting blade so that the slitting position of the outer water cutter is on the movement path of the cutting edge of the slitting blade.

4. The punch structure of the outside water-cutting inside LIP according to claim 3, characterized in that: The first guide member includes a first guide wheel that is rotatable.

5. The punch structure of an outside-water-cut inside LIP according to claim 1, characterized in that: The end of the first positioning member is connected to the blade of the dividing knife. The shape of the blade is similar to that of the first positioning member, and the cutting edge of the blade is close to the end of the first positioning member.

6. The punch structure of an outside-water-cut inside LIP according to claim 5, characterized in that: A docking structure is provided between the end of the first positioning member and the blade.

7. The punch structure of an outside-water-cut inside LIP according to claim 6, characterized in that: The docking structure includes a docking groove and a docking protrusion, wherein the docking groove is disposed at the end of the blade and the docking protrusion is disposed at the end of the first positioning member; or, the docking groove is disposed at the end of the first positioning member and the docking protrusion is disposed at the end of the blade.

8. The punch structure of the outside water-cutting inside LIP according to claim 5, characterized in that: The second positioning component further includes a second guide member located near the end of the blade. The second guide member is used to make the inner LIP of the external water-cutting blade conform to the surface of the blade so that the cutting surface can be collinear with the dividing position of the inner LIP.

9. The punch structure of an outside-water-cut inside LIP according to claim 8, characterized in that: The second guide member includes a rotatable second guide wheel.

10. A die cutting apparatus characterized by: The punching structure includes the external water-cutting internal LIP as described in any one of claims 1 to 9.

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