Door frame water cutting LIP cutting and punching die structure and punching equipment

By designing a spring-loaded punch and an independently configured cutter for the door frame waterjet LIP cutting die structure, the problem of easy damage to the waterjet LIP cutter is solved, achieving high-quality punching and low maintenance costs.

CN224144838UActive Publication Date: 2026-04-21QINGYUAN DONGHAI MINSHI AUTOMOTIVE PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGYUAN DONGHAI MINSHI AUTOMOTIVE PARTS CO LTD
Filing Date
2025-05-16
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing waterjet LIP cutters are prone to damage, resulting in high mold maintenance costs and inconsistent punching quality.

Method used

Design a door frame water-cutting LIP punching die structure, which adopts a spring-loaded punch and an independently set cutter. There is a gap between the cutter and the punch. The cutter first divides the LIP, and then the punch performs punching. The cutter can be detached and tilted to improve its service life.

Benefits of technology

It improves the punching quality, reduces mold maintenance costs, and makes repairs easier when the cutter is damaged.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a door frame water cutting LIP cutting and punching die structure and punching equipment, and relates to the technical field of automobile part punching equipment. The stamping knife is arranged on the first jig and can rebound; a positioning piece is arranged on the second jig and is used for positioning the door frame water cutting product; the cutting assembly comprises a cutting knife, the cutting knife is detachably arranged on the second jig, and a gap exists between the cutting knife and the stamping knife. During machining, the door frame water cutting product is positioned on the positioning piece, in the process that the door frame water cutting product is positioned on the positioning piece, after the end LIP of the door frame water cutting product and the water cutting body are separated and positioned under the action of the cutting knife, the punching knife acts to punch the door frame water cutting product, and after punching is completed, the door frame water cutting product is pushed, so that the door frame water cutting product is cut. And the cutting mark of the LIP at the end part of the door frame water cutting product extends to the punching position, so that the cut LIP is separated from the door frame water cutting product. The cutting knife is independently arranged, so that even if the cutting knife is damaged, the cutting knife is more convenient to maintain.
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Description

Technical Field

[0001] This application relates to the field of automotive parts punching equipment technology, and in particular to a door frame water jet cutting LIP die structure and punching equipment. Background Technology

[0002] Water cutting is a process of obtaining a semi-finished product with a fixed cross-section through repeated pressing, then bending the semi-finished product to obtain the corresponding arc, then sawing to obtain the required length and end angle, and finally punching out the notch at the end of the water cutter. The end cap is then assembled onto the end of the water cutter to obtain the finished product.

[0003] The water cutter body consists of four parts: a metal frame; a hard material body covering the metal frame; soft material LIPs (laminated panels) on both the inner and outer sides of the metal frame; and a flocked layer attached to the surface of the outer LIP. Both the hard and soft materials are PVC or rubber-based. To install the water cutter body onto the door frame reinforcement plate, the installation and clearance positions need to be cut out. Generally, a section of the flocked double-layer LIP at both ends is cut off to create clearance, and then the two ends of the water cutter body's frame are cut to form the installation position.

[0004] There are two existing methods for notching the end of waterjet cutters: the first method uses a cutting blade to punch away the LIP in one go (similar to the traditional punching process for metal parts); the second method uses a cutting tool, where the cutting tool begins to separate the lip from the body as the product is inserted into the mold, and finally, the cutting tool punches away the root of the LIP. The first method produces products with less consistent quality; the cutting tool in the second method has a sharpened edge with a thickness of only 2-3mm, resulting in poor strength and easy damage to the cutting tool. Although it protects the punching quality, it also increases the maintenance cost of the mold. Utility Model Content

[0005] This application aims to solve one of the aforementioned technical problems in the prior art. To this end, embodiments of this application provide a door frame waterjet cutting LIP punching die structure.

[0006] This application also provides a punching device.

[0007] According to an embodiment of the first aspect of this application, a door frame waterjet cutting LIP punching die structure is provided, including a first fixture;

[0008] A punch is disposed on the first fixture, and the punch is capable of springing back.

[0009] The second fixture is provided with a positioning element, which is used for positioning the door frame water-cutting product.

[0010] A cutting assembly includes a cutter detachably mounted on a second fixture. The cutter is used for LIP (Liquid Inlet / Outlet) splitting of a door frame water-cut product, wherein a gap exists between the cutter and the punch.

[0011] The aforementioned door frame waterjet cutting LIP punching die structure has at least the following beneficial effects: During the waterjet cutting of the door frame, the robot pushes the waterjet-cut product along the setting direction of the positioning component and from one end of the positioning component to the other, positioning the waterjet-cut product on the positioning component. During the positioning process, the LIP at the end of the waterjet-cut product separates from the waterjet body under the action of the cutting blade. The punching position of the positioned waterjet-cut product is on the movement path of the punch. Then, the punch performs the punching operation on the waterjet-cut product. After the punching is completed, the robot pushes the waterjet-cut product to continue pushing along the setting direction of the positioning component, so that the dividing line of the LIP at the end of the waterjet-cut product extends to the punching position, separating the divided LIP from the waterjet-cut product, thus completing the waterjet cutting operation of the door frame. This application, by independently setting the cutting blade, makes maintenance more convenient even if the cutting blade is damaged.

[0012] According to the door frame water-cutting LIP punching die structure described in the first aspect embodiment of this application, the cutting edge of the cutter faces the punch, and the cutting edge of the cutter is inclined relative to the feeding method of the door frame water-cutting product.

[0013] According to the door frame waterjet cutting LIP punching die structure described in the first aspect of this application, the cutting assembly further includes a fixing seat and a fastener. The fixing seat is fixed to the second fixture, the cutter is inserted into the fixing seat, and the fastener is used to restrict the movement of the cutter.

[0014] According to the door frame waterjet cutting LIP punching die structure described in the first aspect of this application, the fixed base is provided with a mounting groove for sliding adjustment of the cutter, and the fastener can enter the mounting groove to abut against the cutter.

[0015] According to the door frame water-cutting LIP punching die structure of the first aspect embodiment of this application, the door frame water-cutting LIP punching die structure further includes a first guide member. During the process of positioning the door frame water-cutting product on the positioning member, the first guide member is used to make the inner groove of the door frame water-cutting product fit into the positioning member.

[0016] According to the door frame waterjet cutting LIP punching die structure described in the first aspect embodiment of this application, the first guide member is provided with a rotatable guide wheel on the side facing the positioning member.

[0017] According to the door frame waterjet cutting LIP punching die structure of the first aspect embodiment of this application, the door frame waterjet cutting LIP punching die structure further includes a second guide member, and the second guide member is provided with a contoured guide hole for guiding the door frame waterjet cutting to the positioning member, wherein the punch is located between the second guide member and the cutting blade.

[0018] According to the door frame waterjet cutting LIP punching die structure described in the first aspect embodiment of this application, the first fixture is provided with a sliding groove for the punch to slide, the groove opening is provided with a limiting member for restricting the punch from disengaging, and the sliding groove is provided with a spring member for providing a spring force to the punch.

[0019] According to the door frame waterjet cutting LIP punching die structure described in the first aspect embodiment of this application, a waste guide groove is provided between the first fixture and the second fixture, and the waste guide groove is used for waste discharge.

[0020] According to an embodiment of the second aspect of this application, a punching device is provided, including the door frame waterjet cutting LIP punching die structure described above.

[0021] 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

[0022] The present application will be further described below with reference to the accompanying drawings and embodiments;

[0023] Figure 1 This is a structural schematic diagram of the door frame water-cutting product according to an embodiment of this application;

[0024] Figure 2 This is a cross-sectional schematic diagram of the water-cut door frame product according to an embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the structure of the door frame waterjet cutting LIP punching die in this embodiment of the application. Figure 1 ;

[0026] Figure 4 This is a schematic diagram of the structure of the door frame waterjet cutting LIP punching die in this embodiment of the application. Figure 2 ;

[0027] Figure 5 This is a schematic diagram of the structure of the door frame waterjet cutting LIP punching die in this embodiment of the application. Figure 3 ;

[0028] Figure 6 This is a schematic diagram of the structure of the door frame waterjet cutting LIP punching die in this embodiment of the application. Figure 4 ;

[0029] Figure 7 This is a schematic diagram of the structure of the door frame waterjet cutting LIP punching die in this embodiment of the application. Figure 5 ;

[0030] Figure 8 This is a schematic diagram of the connection between the cutter and the fixed base in an embodiment of this application. Figure 1 ;

[0031] Figure 9 This is a schematic diagram of the connection between the cutter and the fixed base in an embodiment of this application. Figure 2 ;

[0032] Figure 10 This is a schematic diagram of the structure of the door frame waterjet cutting LIP punching die in this embodiment of the application. Figure 6 ;

[0033] Figure 11 This is a schematic diagram of the structure of the door frame waterjet cutting LIP punching die in this embodiment of the application. Figure 7 ;

[0034] Figure 12 This is a schematic diagram of the structure of the door frame waterjet cutting LIP punching die in this embodiment of the application. Figure 8 .

[0035] Reference numerals: Door frame waterjet cutting product 100, metal frame 101, LIP 102, notch groove 110, first fixture 210, limiting member 211, blade step 212, springback member 213, baffle 214, punch 220, cutting assembly 230, fixing seat 231, cutting blade 232, positioning member 240, first guide member 251, guide wheel 252, second guide member 260, second fixture 270, block 300. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] Reference Figure 1 and Figure 2 The door frame water-cutting product 100 of this application embodiment is composed of four parts: a metal frame 101; a hard material body covering the outer layer of the metal frame 101; soft material LIP102 on the inner and outer sides of the metal frame 101; and a fleece layer attached to the surface of the outer LIP102; wherein the hard material and the soft material are both PVC or rubber materials.

[0041] During punching, such as Figure 1 As shown, the end of the water-cut door frame product 100 needs to be punched with a corresponding notch 110 shape and the LIP 102 at the end needs to be removed. One existing removal method is to directly use a cutter to punch off the LIP 102 in one go (similar to the traditional process for metal parts), but the quality of the product punched out in this way is not very stable. Another removal method is to use a cutter 232 to punch. When the product is inserted into the mold, the cutter 232 begins to separate the LIP 102 from the body. Finally, the cutter 232 punches off the root of the separated LIP 102. Because the cutter 232 has a sharpened tip and a thickness of only 2-3mm, its strength is poor and the cutter 232 is easily damaged. Although the punching quality is protected, the maintenance cost of the mold is high.

[0042] Therefore, such as Figures 3 to 5 As shown, this application provides a door frame waterjet cutting LIP102 die structure, which can improve the cutting quality while reducing maintenance costs.

[0043] The door frame waterjet cutting LIP102 cutting and punching die structure includes a first fixture 210, a punch 220, a second fixture 270, and a cutting assembly 230.

[0044] The first fixture 210 serves as the installation reference, and the punch 220 is slidably mounted on the first fixture 210. The first fixture 210 is provided with a blade step 212 that cooperates with the punch 220. The punch 220 can rebound within a certain range, and the punch 220 and the blade step 212 cooperate to complete the punching operation.

[0045] The second fixture 270 is adjacent to the first fixture 210. The second fixture 270 is provided with the aforementioned positioning member 240. The positioning member 240 is used for positioning the door frame water-cut product 100. The shape of the positioning part of the positioning member 240 is adapted to the inner groove of the door frame water-cut product 100. The cutting blade 232 of the cutting assembly 230 is detachably provided on the second fixture 270. The cutting blade 232 is used for LIP102 division of the door frame water-cut product 100. There is a gap between the cutting blade 232 and the punch 220 to avoid interference between the punching of the punch 220 and the cutting blade 232.

[0046] When performing water-cutting of door frames, the robot pushes the water-cut door frame product 100 along the setting direction of the positioning member 240 and from one end of the positioning member 240 to the other end, so that the water-cut door frame product 100 is positioned on the positioning member 240.

[0047] During the process of positioning the door frame water-cutting product 100 in the positioning member 240, the LIP102 at the end of the door frame water-cutting product 100 is separated from the water-cutting body under the action of the cutter 232. The punching position of the positioned door frame water-cutting product 100 is on the movement path of the punch 220. Then, the punch 220 moves under the action of the block 300 and performs punching operation on the door frame water-cutting product 100.

[0048] After punching, the robot pushes the door frame water-cut product 100 along the setting direction of the positioning member 240, so that the dividing line of the LIP102 at the end of the door frame water-cut product 100 extends to the punching position of the LIP102, so that the divided LIP102 separates from the door frame water-cut product 100, completing the cutting and punching operation of the door frame water-cut product 100. By setting the cutter 232 independently, even if the cutter 232 is damaged, maintenance is more convenient.

[0049] Furthermore, such as Figures 6 to 12 As shown, the cutting edge of the cutter 232 faces the punch 220. The cutting edge of the cutter 232 is inclined relative to the feeding method of the door frame water-cutting product 100. That is, the cutting edge of the cutter 232 intersects with the feeding direction of the door frame water-cutting product 100 when projected onto the same plane. This setting makes the cutting process smoother and can also improve the service life of the cutter 232.

[0050] It should be noted that the cutting edge of the cutter 232 faces the feed side of the door frame water cutter. The cutter 232 first divides a portion of the LIP102, punches out the end shape of the door frame water cutter product 100, and then continues to accurately cut off the LIP102 that needs to be removed.

[0051] In some embodiments, such as Figures 6 to 11As shown, the cutting assembly 230 also includes a fixing base 231 and fasteners. The fixing base 231 is fixed to the second fixture 270, and the cutter 232 is inserted into the fixing base 231. The fasteners are used to restrict the movement of the cutter 232. The cutter 232 is inserted into the fixing base 231 and restricted by the fasteners, making it convenient to install, remove, and adjust the cutter 232.

[0052] In some specific embodiments, the mounting base 231 is provided with a mounting groove for the cutting blade 232 to slide and adjust, and the fastener can enter the mounting groove to abut against the cutting blade 232.

[0053] In this embodiment, the cutter 232 can be a standard part available on the market, and a commercially available thin blade can be used as the cutter 232. The mounting slot and the cutter 232 are clearance-fitted, and the fastener is a screw, which makes it convenient to fix and disassemble the cutter 232.

[0054] In some embodiments, the door frame water-cutting LIP102 punching die structure also includes a first guide member 251. During the process of positioning the door frame water-cutting product 100 in the positioning member 240, the first guide member 251 is used to make the inner groove of the door frame water-cutting product 100 fit into the positioning member 240, so as to avoid the door frame water-cutting product 100 from having a large positional offset or deformation during the punching process, making the punching more accurate, and also making the positioning of the door frame water-cutting product 100 faster and more accurate without manual intervention.

[0055] In some embodiments, the first guide member 251 is provided with a rotatable guide wheel 252 on the side facing the positioning member 240. The guide wheel 252 contacts the door frame water-cutting product 100, reducing the friction caused by the first guide member 251 during the positioning process of the door frame water-cutting product 100, so that the positioning of the door frame water-cutting product 100 is faster.

[0056] In some embodiments, the door frame waterjet cutting LIP102 die structure further includes a second guide member 260. A contoured guide hole on the second guide member 260 guides and positions the door frame waterjet cutting guide member 240. The punch 220 is positioned between the second guide member 260 and the cutter 232. The second guide member 260 improves the positioning speed and accuracy of the door frame waterjet product 100.

[0057] In some embodiments, the first fixture 210 is provided with a groove for the punch 220 to slide in. The groove opening is provided with a limiting member 211 to restrict the punch 220 from disengaging, and the groove is provided with a spring-loaded member 213 to provide a spring-loaded force to the punch 220. The range of motion of the punch 220 is limited by the groove and the limiting member 211, and the spring-loaded member 213 provides a spring-loaded force so that the punch 220 can automatically reset after one punching operation.

[0058] In this embodiment, the springback element 213 can be a spring or a spring sheet.

[0059] In some embodiments, a waste guide channel is provided between the first fixture 210 and the second fixture 270 for discharging waste. To prevent waste from being scattered, a baffle 214 is provided between the first fixture 210 and the second fixture 270.

[0060] This application also provides a punching device having the above-described door frame waterjet cutting LIP102 punching die structure.

[0061] 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 door frame waterjet cutting LIP punching die structure, characterized in that: include The first fixture; A punch is disposed on the first fixture, and the punch is capable of springing back. The second fixture is provided with a positioning element, which is used for positioning the door frame water-cutting product. A cutting assembly includes a cutter detachably mounted on a second fixture. The cutter is used for LIP (Liquid Inlet / Outlet) splitting of a door frame water-cut product, wherein a gap exists between the cutter and the punch.

2. The hydrocut LIP punch die structure for a door frame according to claim 1, characterized in that: The cutting edge of the cutter faces the punch, and the cutting edge of the cutter is inclined relative to the feeding method of the water-cut door frame product.

3. The hydrocut LIP punch die structure for a door frame according to claim 1, characterized in that: The cutting assembly further includes a fixing seat and a fastener. The fixing seat is fixed to the second fixture, the cutter is inserted into the fixing seat, and the fastener is used to restrict the movement of the cutter.

4. The hydrocut LIP punch die structure for a door frame according to claim 3, characterized in that: The mounting base is provided with a mounting groove for the cutting blade to slide and adjust, and the fastener can enter the mounting groove to abut against the cutting blade.

5. The hydrocut LIP punch die structure for a door frame according to claim 1, characterized in that: The door frame water-cutting LIP punching die structure also includes a first guide member. During the process of positioning the door frame water-cutting product in the positioning member, the first guide member is used to make the inner groove of the door frame water-cutting product fit into the positioning member.

6. The hydrocut LIP punch die structure for a door frame according to claim 5, characterized in that: The first guide member has a rotatable guide wheel on the side facing the positioning member.

7. The hydrocut LIP punch die structure for a door frame according to claim 1, characterized in that: The door frame water jet cutting LIP punching die structure also includes a second guide member. The second guide member has a contoured guide hole for guiding the door frame water jet cutting to the positioning member. The punch is located between the second guide member and the cutting blade.

8. The hydrocut LIP punch die structure for a door frame according to claim 1, characterized in that: The first fixture is provided with a sliding groove for the punch to slide, the groove opening is provided with a limiting member for restricting the punch from disengaging, and the sliding groove is provided with a spring-loaded member for providing a spring-loaded force to the punch.

9. The hydrocut LIP punch die structure for a door frame according to claim 1, characterized in that: A waste guide channel is provided between the first fixture and the second fixture, and the waste guide channel is used for waste discharge.

10. A die cutting apparatus characterized by: Includes the door frame waterjet cutting LIP punching die structure as described in any one of claims 1 to 9.