A forming and trimming die for automobile luggage compartments

Abstract

This utility model provides a trimming mold for forming automotive trunks, relating to the field of automotive parts processing technology. It includes a lower mold base, with sliding guide pillars fixedly connected to the four corners of the upper surface of the lower mold base. An upper mold base is fixedly connected to the top of the four sliding guide pillars. A lower template is fixedly connected to the middle of the upper surface of the lower mold base, and a lower trimming blade is fixedly connected to the outer side of the lower template. An upper trimming blade is fixedly connected to the bottom of the upper mold base. This utility model utilizes the interaction between the cutting cross-blade of the upper trimming blade and the T-shaped groove of the cutting table. During the trimming process, the cutting cross-blade descends with the upper mold base, precisely engaging with the T-shaped groove on the support plate to cut the closed waste material generated during trimming from both sides, separating the originally closed waste material into two parts. Based on this, the difficulty of removing waste material is significantly reduced, waste cleaning time is greatly shortened, and overall processing efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to a molding die for forming and cutting edges of an automotive trunk. Background Technology

[0002] The car trunk is an enclosed space structure at the rear of a car used for storing items. It is usually made of metal sheets or composite materials through stamping, forming and other processes. Its shape and size must be compatible with the overall structure of the car to ensure sufficient storage space while meeting the requirements of the car body's sealing, safety and aesthetics.

[0003] In the processing of car trunks, the edges of the workpiece after initial forming often have excess material or irregular burrs. These excess parts will affect the assembly accuracy, performance and appearance quality of the trunk. Edge cutting mold is a special tool used to cut the edges of the formed workpiece. Through the precise cooperation between the cutting edge of the mold and the workpiece, excess material can be removed quickly and efficiently, so that the edge of the workpiece meets the design requirements for size and accuracy.

[0004] The existing automotive trunk forming and trimming mold has the following shortcomings:

[0005] Because of the closed cutting structure, the waste generated after cutting is closed and difficult to remove quickly, which seriously affects the cleaning efficiency of subsequent processing. At the same time, the workpiece is prone to displacement due to lack of effective clamping during cutting, which affects the cutting accuracy. In addition, the sliding guide structure has poor lubrication, and after long-term use, excessive friction can lead to a decrease in guiding accuracy, which further affects the processing quality. Utility Model Content

[0006] This utility model proposes a molding die for forming and cutting edges of an automobile trunk. It mainly cuts closed waste material to facilitate removal, while also setting up a clamping structure to prevent workpiece displacement and optimizing the lubrication effect of the sliding guide structure, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a car trunk forming and trimming mold, comprising a lower mold base, wherein sliding guide pillars are fixedly connected to the four corners of the upper surface of the lower mold base, an upper mold base is fixedly connected to the top of the four sliding guide pillars, a lower template is fixedly connected to the middle of the upper surface of the lower mold base, a lower trimming blade is fixedly connected to the outer side of the lower template, an upper trimming blade is fixedly connected to the bottom of the upper mold base, and cutting tables are fixedly connected to the left and right sides of the upper surface of the lower mold base.

[0008] Both sides of the outer surface of the upper cutting edge are fixedly connected to cutting cross blades, and both sides of the inner surface of the upper cutting edge are fixedly connected to clamping components.

[0009] The cutting table includes a connecting sleeve, and two connecting sleeves are respectively fixedly connected to the left and right sides of the upper surface of the lower mold base. A lifting slide column is slidably inserted into the top of the inner surface of the connecting sleeve. A fastening bolt that passes through the left and right sides is threaded to the side of the lifting slide column. The fastening bolt passes through to the outside of the connecting sleeve. A bearing plate is fixedly connected to the top of the lifting slide column. A T-shaped groove is opened at the top of the bearing plate.

[0010] Preferably, the clamping assembly includes connecting plates, two of which are fixedly connected to the left and right sides of the inner surface of the upper cutting edge, and sliding guide rods that pass through vertically are slidably connected to the front and rear sides of the connecting plates, and a limiting baffle is fixedly connected to the top of the two sliding guide rods.

[0011] Preferably, a lower pressure plate is fixedly connected to the bottom of the two sliding guide rods, and a rubber pad is fixedly connected to the bottom of the lower pressure plate.

[0012] Preferably, the outer surface of the sliding guide rod is provided with a clamping spring, the top end of the clamping spring is fixedly connected to the lower surface of the connecting plate, and the bottom end of the clamping spring is fixedly connected to the upper surface of the lower pressure plate.

[0013] Preferably, the sliding guide post includes a support sleeve post, which is fixedly connected to the upper surface of the lower mold base, and a guide post is slidably inserted into the top of the inner surface of the support sleeve post, which is fixedly connected to the lower surface of the upper mold base.

[0014] Preferably, the inner top of the support sleeve column is provided with an annular connecting groove, the outer top of the support sleeve column is provided with an oil injection hole, the oil injection hole penetrates to the inner wall of the annular connecting groove, an annular oil storage cotton is fixedly connected to the inner surface of the annular connecting groove, and a plurality of oil filter cottons are fixedly connected in an annular array on the inner surface of the annular oil storage cotton, with the end of the oil filter cotton away from the annular oil storage cotton penetrating to the inner surface of the support sleeve column.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] 1. In this utility model, the cutting cross-blade of the upper edge cutting edge and the T-shaped cutting groove of the cutting table cooperate with each other. The principle is that during the cutting process, the cutting cross-blade descends with the upper mold base and precisely cooperates with the T-shaped cutting groove on the support plate to cut the closed waste generated by the cutting edge from both sides, so that the originally closed waste is separated into two parts. Based on this, the difficulty of removing the waste is significantly reduced, the waste cleaning time is greatly shortened, and the overall processing efficiency is effectively improved.

[0017] 2. In this utility model, through the mutual cooperation between the sliding guide rod, the top spring, the lower pressure plate, and the upper cutting edge of the clamping assembly, the principle is that when the mold is closed, the lower pressure plate, under the elastic force of the top spring, contacts the workpiece before the upper cutting edge and clamps it. This avoids displacement of the workpiece due to force during cutting, ensuring cutting accuracy and providing auxiliary guarantee for the effective implementation of the main innovation. At the same time, the cooperation of the support sleeve, guide column, annular oil storage cotton, and oil filter cotton in the sliding guide post can continuously provide lubrication for the sliding guide part, reduce friction and wear, and ensure long-term stable guiding accuracy. As a secondary innovation, it further assists in improving the overall working performance of the mold. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the automobile luggage box forming and trimming mold of this utility model;

[0019] Figure 2 This is a schematic diagram of the upper cutting edge of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the clamping assembly of this utility model;

[0021] Figure 4 This is a schematic diagram of the cutting table of this utility model;

[0022] Figure 5 This is a cross-sectional structural diagram of the sliding guide post of this utility model.

[0023] Legend: 1. Lower mold base; 2. Sliding guide post; 21. Support sleeve post; 22. Guide post; 23. Annular connecting groove; 24. Oil injection hole; 25. Annular oil storage cotton; 26. Oil filter cotton; 3. Upper mold base; 4. Lower template; 5. Lower cutting edge; 6. Upper cutting edge; 61. Cutting cross blade; 62. Clamping assembly; 621. Connecting plate; 622. Sliding guide rod; 623. Limiting baffle; 624. Lower pressure plate; 625. Rubber pad; 626. Top clamping spring; 7. Cutting table; 71. Connecting sleeve; 72. Lifting slide column; 73. Fastening bolt; 74. Bearing plate; 75. T-shaped cut groove. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1: As Figure 1 , Figure 2 and Figure 4 As shown, this utility model provides a technical solution: it includes a lower mold base 1, with sliding guide pillars 2 fixedly connected to the four corners of the upper surface of the lower mold base 1, an upper mold base 3 fixedly connected to the top of the four sliding guide pillars 2, a lower template 4 fixedly connected to the middle of the upper surface of the lower mold base 1, a lower cutting edge 5 fixedly connected to the outer side of the lower template 4, an upper cutting edge 6 fixedly connected to the bottom of the upper mold base 3, and cutting tables 7 fixedly connected to the left and right sides of the upper surface of the lower mold base 1. Cutting cross blades 61 are fixedly connected to the left and right sides of the outer surface of the upper cutting edge 6. The inner surface of the upper cutting edge 6 is fixedly connected to the left and right sides of the pressing assembly 62. The cutting table 7 includes a connecting sleeve 71. The two connecting sleeves 71 are fixedly connected to the left and right sides of the upper surface of the lower mold base 1 respectively. The top of the inner surface of the connecting sleeve 71 is slidably inserted with a lifting slide column 72. The side of the lifting slide column 72 is threaded with a fastening bolt 73 that passes through from left to right. The fastening bolt 73 passes through to the outside of the connecting sleeve 71. The top of the lifting slide column 72 is fixedly connected to a bearing plate 74. The top of the bearing plate 74 is provided with a T-shaped groove 75.

[0027] The overall effect of Embodiment 1 is as follows: the cutting edge operation of the car trunk workpiece can be completed by the cooperation of the upper cutting edge 6 and the lower cutting edge 5, while the cutting cross blade 61 and the T-shaped cutting groove 75 can cut off the closed waste generated by the cutting edge, making it convenient to remove the waste. At the same time, the lifting slide column 72 can slide in the connecting sleeve 71. By adjusting the height of the lifting slide column 72 and fixing it with the fastening bolt 73, it can adapt to the cutting edge and waste cutting requirements of workpieces of different thicknesses, thus improving the versatility of the mold.

[0028] Example 2: Figure 3 As shown, this utility model provides a technical solution: the pressing assembly 62 includes a connecting plate 621, two connecting plates 621 are respectively fixedly connected to the left and right sides of the inner surface of the upper cutting edge 6, and sliding guide rods 622 that pass through vertically are slidably connected to the front and rear sides of the connecting plate 621. A limiting baffle 623 is fixedly connected to the top of the two sliding guide rods 622, and a lower pressure plate 624 is fixedly connected to the bottom of the two sliding guide rods 622. A rubber pad 625 is fixedly connected to the bottom of the lower pressure plate 624. A pressing spring 626 is provided on the outer surface of the sliding guide rods 622. The top end of the pressing spring 626 is fixedly connected to the lower surface of the connecting plate 621, and the bottom end of the pressing spring 626 is fixedly connected to the upper surface of the lower pressure plate 624.

[0029] The overall effect of embodiment 2 is as follows: during the mold closing process, the lower pressure plate 624 can contact the workpiece before the upper cutting edge 6. The elastic force of the top spring 626 makes the lower pressure plate 624 press the workpiece tightly, avoiding the workpiece displacement during cutting and affecting the accuracy. The rubber pad 625 can prevent the lower pressure plate 624 from damaging the workpiece surface. The sliding cooperation between the sliding guide rod 622 and the connecting plate 621 ensures the smooth movement of the lower pressure plate 624. The limiting baffle 623 can prevent the sliding guide rod 622 from falling off the connecting plate 621.

[0030] Example 3: As Figure 5 As shown, this utility model provides a technical solution: the sliding guide post 2 includes a support sleeve post 21, the support sleeve post 21 is fixedly connected to the upper surface of the lower mold base 1, a guide post 22 is slidably inserted into the top of the inner surface of the support sleeve post 21, the guide post 22 is fixedly connected to the lower surface of the upper mold base 3, an annular connecting groove 23 is opened at the top of the inner surface of the support sleeve post 21, an oil injection hole 24 is opened at the top of the outer surface of the support sleeve post 21, the oil injection hole 24 penetrates to the inner wall of the annular connecting groove 23, an annular oil storage cotton 25 is fixedly connected to the inner surface of the annular connecting groove 23, and a plurality of oil filter cotton 26 are fixedly connected in an annular array on the inner surface of the annular oil storage cotton 25, and the end of the oil filter cotton 26 away from the annular oil storage cotton 25 penetrates to the inner surface of the support sleeve post 21;

[0031] The overall effect achieved by embodiment 3 is as follows: the sliding of the guide post 22 within the support sleeve post 21 ensures the accuracy of the mold closing between the upper mold base 3 and the lower mold base 1; lubricating oil can be added to the annular connecting groove 23 through the oil injection hole 24; the annular oil storage cotton 25 can store lubricating oil; and the oil filter cotton 26 can evenly guide the lubricating oil to the contact surface between the guide post 22 and the support sleeve post 21, continuously providing lubrication, reducing friction and wear between the two, ensuring long-term stability of guiding accuracy, and extending the service life of the mold.

[0032] The working principle of the entire equipment is as follows: During operation, the car trunk workpiece to be processed is first placed on the lower template 4. The equipment is started, and the upper mold base 3 moves downward under the guidance of the sliding guide column 2 under the action of the drive mechanism. At this time, the guide column 22 slides in the support sleeve column 21, and the lubricating oil in the annular oil storage cotton 25 continuously lubricates the contact surface of the two through the oil filter cotton 26, ensuring that the upper mold base 3 descends smoothly. As the upper mold base 3 descends, the clamping component 62 on the inner side of the cutting edge 6 first contacts the workpiece, and the lower pressure plate 624 is on top. The workpiece is firmly pressed down by the elastic force of the spring 626, and the rubber pad 625 protects the workpiece surface from being damaged and prevents workpiece displacement during the trimming process. The upper die base 3 continues to descend, and the upper trimming blade 6 and the lower trimming blade 5 cooperate to trim the workpiece, removing excess material from the edge. At the same time, the cutting cross blade 61 on the outer surface of the upper trimming blade 6 descends with the upper die base 3 and precisely cooperates with the T-shaped groove 75 on the support plate 74 on the cutting table 7 to cut the closed waste material generated by trimming from both sides, separating it into two parts. After trimming is completed, the upper die base 3 moves upward to reset, and the operator can easily remove the separated waste material and the processed workpiece. If processing workpieces of different thicknesses, the fastening bolt 73 can be loosened, and the height of the lifting slide 72 in the connecting sleeve 71 can be adjusted so that the cooperation position of the T-shaped groove 75 and the cutting cross blade 61 is adapted to the workpiece thickness. Then, the fastening bolt 73 can be tightened to fix the lifting slide 72.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A molding die for forming and trimming car trunks, characterized in that: Includes a lower mold base (1), with sliding guide pillars (2) fixedly connected to the four corners of the upper surface of the lower mold base (1), an upper mold base (3) fixedly connected to the top of the four sliding guide pillars (2), a lower template (4) fixedly connected to the middle of the upper surface of the lower mold base (1), a cutting edge lower blade (5) fixedly connected to the outer side of the lower template (4), a cutting edge upper blade (6) fixedly connected to the bottom of the upper mold base (3), and cutting tables (7) fixedly connected to the left and right sides of the upper surface of the lower mold base (1). The upper cutting edge (6) has a cutting cross blade (61) fixedly connected to both the left and right sides of its outer surface, and a pressing component (62) fixedly connected to both the left and right sides of its inner surface. The cutting table (7) includes a connecting sleeve (71). The two connecting sleeves (71) are fixedly connected to the left and right sides of the upper surface of the lower mold base (1). A lifting slide column (72) is slidably inserted into the top of the inner surface of the connecting sleeve (71). A fastening bolt (73) is threadedly connected to the side of the lifting slide column (72) and extends through to the outside of the connecting sleeve (71). A bearing plate (74) is fixedly connected to the top of the lifting slide column (72). A T-shaped groove (75) is opened at the top of the bearing plate (74).

2. The automobile trunk forming and trimming mold according to claim 1, characterized in that: The clamping assembly (62) includes a connecting plate (621). The two connecting plates (621) are fixedly connected to the left and right sides of the inner surface of the upper cutting edge (6). The front and rear sides of the connecting plate (621) are slidably connected with sliding guide rods (622) that pass through vertically. The top of the two sliding guide rods (622) is fixedly connected with a limiting baffle (623).

3. The automobile trunk forming and trimming mold according to claim 2, characterized in that: A lower pressure plate (624) is fixedly connected to the bottom of the two sliding guide rods (622), and a rubber pad (625) is fixedly connected to the bottom of the lower pressure plate (624).

4. The automobile trunk forming and trimming mold according to claim 3, characterized in that: The outer surface of the sliding guide rod (622) is provided with a clamping spring (626). The top end of the clamping spring (626) is fixedly connected to the lower surface of the connecting plate (621), and the bottom end of the clamping spring (626) is fixedly connected to the upper surface of the lower pressure plate (624).

5. The automobile trunk forming and trimming mold according to claim 1, characterized in that: The sliding guide post (2) includes a support sleeve post (21), which is fixedly connected to the upper surface of the lower mold base (1). A guide post (22) is slidably inserted into the top of the inner surface of the support sleeve post (21), and the guide post (22) is fixedly connected to the lower surface of the upper mold base (3).

6. The automobile trunk forming and trimming mold according to claim 5, characterized in that: The support sleeve (21) has an annular connecting groove (23) at its inner top and an oil injection hole (24) at its outer top. The oil injection hole (24) extends through the inner wall of the annular connecting groove (23). An annular oil storage cotton (25) is fixedly connected to the inner surface of the annular connecting groove (23). Several oil filter cottons (26) are fixedly connected in an annular array on the inner surface of the annular oil storage cotton (25). The end of the oil filter cotton (26) away from the annular oil storage cotton (25) extends through the inner surface of the support sleeve (21).

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