Wedge guide plate of stamping die

Abstract

The utility model relates to the technical field of die accessories, and particularly discloses a tapered wedge guide plate of a stamping die, which comprises a guide plate base body, a plurality of spring plungers arranged on a guide surface of the guide plate base body, and an oil passage arranged in the guide plate base body and communicated with the interiors of the spring plungers, the oil supply pipeline is arranged in the oil way channel; the oil guide hole is formed in one side, facing the spring plunger, of the oil supply pipeline and is used for communicating the oil supply pipeline with the spring plunger; the sealing ring is arranged between the spring plunger and the outer wall of the oil supply pipeline and is extruded by a spring in the spring plunger; the problems that the sealing performance between a traditional wedge guide plate and a spring plunger is poor, and lubricating oil is prone to leakage are solved.

Description

Technical Field

[0001] The present application relates to the technical field of mold accessories, and specifically discloses a wedge guide plate for a stamping mold. Background Art

[0002] In the stamping production of automotive panels, paired wedge guides are often used to drive the die flanging and shaping mechanism. The principle is as follows: the wedge guides are installed in pairs within the upper and lower die shaping mechanisms. Typically, the upper die guide is steel-based, while the lower die guide is copper-based. As the upper die descends, the upper die guide gradually drives the lower die guide, converting the vertical motion of the press into horizontal motion of the trolley. When the working surfaces of the upper and lower die guides come into contact, the lower die trolley extends into position, completing the flanging or shaping of the part. Because the lower die wedge guide is made of copper, its wear resistance and heat dissipation properties are insufficient. Depletion of the solid lubricant on the guide surface causes a sharp increase in frictional temperature, exacerbating wear on the working surface. Furthermore, when the die guides experience uneven contact or deviation from the wedge motion, the guides are subjected to significant lateral forces. Repeated impact and alternating loads can cause roughening or abnormal wear on the guide working surfaces.

[0003] According to the friction behavior of continuously running materials and the friction test process, it can be seen that due to the relative motion of the iron molecules with the dual material, the motion friction process is prone to galling or even biting. Adding oil lubrication function to the working surface can reduce the friction between the guide surfaces and effectively reduce the wear of the guide surface of the guide plate.

[0004] The current inclined wedge guide plate is usually achieved by installing a spring plunger on the guide surface of the guide plate base and opening an oil channel in the guide plate base that is connected to the inside of the spring plunger. When the inclined wedge guide plate is working, the ball and spring in the spring plunger are squeezed, and the ball shrinks along the center of the plunger, forming an oil seepage gap between the plunger and the ball, completing the discharge of lubricating oil and achieving real-time lubrication of the working surface of the lower die inclined wedge copper-based guide plate, thereby reducing the impact of impact loads on guide plate wear.

[0005] The existing inclined wedge guide plate and the spring plunger are usually directly matched through threads, and the threaded mating surface is sealed by injecting sealant. During long-term use, the sealant is prone to aging and affects the sealing performance, causing the lubricating oil in the oil channel inside the guide plate to leak, resulting in waste of lubricating oil and increasing the maintenance cost of the inclined wedge guide plate. Therefore, in view of this, the inventor provides a stamping die inclined wedge guide plate to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the problem that the sealing performance between the traditional inclined wedge guide plate and the spring plunger is poor, resulting in easy leakage of lubricating oil.

[0007] In order to achieve the above-mentioned purpose, the basic scheme of the present invention provides a stamping die wedge guide plate, including a guide plate base, a plurality of spring plungers arranged on the guide surface of the guide plate base, and an oil passage provided in the guide plate base and connected to the interior of the spring plunger, and also includes an oil supply pipe provided in the oil passage, an oil guide hole provided on the side of the oil supply pipe facing the spring plunger and connecting the oil supply pipe and the spring plunger, and a sealing ring provided between the spring plunger and the outer wall of the oil supply pipe and squeezed by the spring in the spring plunger.

[0008] The principles and effects of this basic solution are:

[0009] Compared with the prior art, the present invention arranges an oil supply pipe in the oil passage and supplies oil through the oil guide hole on the oil supply pipe, so that an environment that allows the installation of a sealing ring can be formed between the spring plunger and the oil supply pipe, thereby utilizing the sealing ring to seal between the spring plunger and the oil supply pipe, thereby improving the sealing between the spring plunger and the oil supply pipe. At the same time, the spring in the spring plunger is used to squeeze the sealing ring, so that the sealing ring is tightly attached to the outer wall of the oil supply pipe, further improving the sealing performance between the spring plunger and the oil supply pipe, and solving the problem that the sealing performance between the traditional inclined wedge guide plate and the spring plunger is poor, which leads to easy leakage of lubricating oil.

[0010] Furthermore, the spring plunger comprises:

[0011] A plunger is detachably connected to the guide plate base, and a cavity is provided inside the plunger for the flow of lubricating oil;

[0012] The ball head steel ball is arranged at the end of the plunger away from the oil supply pipe, and the end surface of the cavity is provided with an arc surface adapted to the ball head steel ball;

[0013] a spring disposed in the cavity;

[0014] The sealing ring is arranged at one end of the plunger close to the oil supply pipeline.

[0015] The resulting spring plunger can cause the elastic force of the spring to act on the sealing ring, thereby pressing the sealing ring against the outer wall of the oil supply pipe to ensure the sealing performance of the sealing ring between the spring plunger and the oil supply pipe.

[0016] Furthermore, the spring plunger also includes a sliding ring disposed within the cavity and in sliding, sealing connection with the inner wall of the cavity, with the spring disposed between the ball and the sliding ring. The provision of the sliding ring not only further improves the seal between the spring plunger and the oil supply pipe, but also facilitates tightening the sealing ring using the elastic force of the spring.

[0017] Furthermore, the sealing ring is arranged between the sliding ring and the outer wall of the oil supply pipeline. In this arrangement, the sealing ring can also be used to ensure the sealing performance between the sliding ring and the outer wall of the oil supply pipeline.

[0018] Furthermore, the inner wall of the sealing ring is provided with a guide cylinder adapted to the spring, which can prevent the sealing ring and the spring from being misaligned or separated.

[0019] Furthermore, the guide surface of the guide plate base is provided with a plurality of internal threaded holes, and the outer wall of the plunger is provided with external threads adapted to the internal threaded holes. The internal threaded holes and the external threads of the plunger cooperate with each other to facilitate the installation and removal of the spring plunger as a whole.

[0020] Furthermore, the internal threaded hole is perpendicular to the guide surface of the guide plate base, so that during the operation of the wedge guide plate, the ball and spring are compressed in a direction perpendicular to the guide surface of the guide plate base, thereby preventing the ball and spring from getting stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of a wedge guide plate for a stamping die proposed in an embodiment of the present application is shown;

[0023] Figure 2 A partial structural cross-sectional view of a wedge guide plate of a stamping die proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0024] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0025] The reference numerals in the drawings of the specification include: guide plate base 1, guide surface 2, ball head steel ball 3, oil supply pipe 4, plunger 5, internal threaded hole 6, spring 7, sliding ring 8, sealing ring 9, oil guide hole 10.

[0026] A stamping die wedge guide plate, for example Figure 1 As shown: it includes a guide plate base 1, a plurality of spring plungers arranged on the guide surface 2 of the guide plate base 1, and an oil channel arranged in the guide plate base 1 and connected to the interior of the spring plungers.

[0027] like Figure 2 As shown, the spring plunger includes a plunger 5 , a spherical steel ball 3 provided at the outer end of the plunger 5 , a spring 7 provided inside the plunger 5 , and a sliding ring 8 provided at the inner end of the plunger 5 .

[0028] The plunger 5 is detachably connected to the guide plate base 1. The guide surface 2 of the guide plate base 1 is provided with a number of internal threaded holes 6 perpendicular to the guide surface 2 of the guide plate base 1. The outer wall of the plunger 5 is provided with an external thread adapted to the internal threaded hole 6, that is, the plunger 5 and the guide plate base 1 are connected to each other through threaded cooperation. A cavity is provided inside the plunger 5 for the flow of lubricating oil, and an arc-shaped surface adapted to the ball steel ball 3 is provided on the end face of the cavity, so that one end of the ball steel ball 3 extends out of the cavity and the other end is located in the cavity; the spring 7 is located between the ball steel ball 3 and the sliding ring 8 and is in a compressed state; an installation groove is provided at the inner end of the plunger 5, and the sliding ring 8 is slidingly and sealingly connected in the installation groove, and a guide cylinder adapted to the spring 7 is provided on the inner wall of the sealing ring 9.

[0029] It also includes an oil supply pipe 4 arranged in the oil passage, an oil guide hole 10 arranged on the side of the oil supply pipe 4 facing the spring plunger and connecting the oil supply pipe 4 with the spring plunger, and a sealing ring 9 arranged between the spring plunger and the outer wall of the oil supply pipe 4 and squeezed by the spring 7 in the spring plunger. The sealing ring 9 is arranged between the sliding ring 8 and the outer wall of the oil supply pipe 4, and the sum of the thickness of the sealing ring 9 and the sliding ring 8 is greater than the depth of the mounting groove, so that when the plunger 5 spring 7 is completely fixed to the guide plate base 1, the sealing ring 9 is in a compressed state.

[0030] In this embodiment, the lubricating oil enters the cavity of the plunger 5 through the oil supply pipe 4 and the oil guide hole 10 on the oil supply pipe 4. When the inclined wedge guide plate is working, the ball head steel ball 3 and the spring 7 in the spring plunger are squeezed, and the ball head steel ball 3 shrinks along the center of the plunger 5, forming an oil seepage gap between the plunger 5 and the ball head steel ball 3. The lubricating oil is discharged through the oil seepage gap to achieve real-time lubrication of the working surface of the lower die inclined wedge copper-based guide plate, thereby reducing the impact of the impact load on the guide plate wear; during this working process and when the inclined wedge guide plate of the stamping die is idle, the sealing ring 9 seals the spring plunger and the oil supply pipe 4, thereby improving the sealing between the spring plunger and the oil supply pipe 4. At the same time, the spring 7 in the spring plunger is used to squeeze the sealing ring 9, so that the sealing ring 9 is close to the outer wall of the oil supply pipe 4, further improving the sealing performance between the spring plunger and the oil supply pipe 4, and solving the problem that the sealing performance between the traditional inclined wedge guide plate and the spring plunger is poor, which makes the lubricating oil easy to leak.

[0031] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A stamping die wedge guide plate, comprising a guide plate base, a plurality of spring plungers provided on a guide surface of the guide plate base, and an oil passage provided in the guide plate base and communicating with the interior of the spring plungers, characterized in that: It also includes an oil supply pipeline arranged in the oil channel, an oil guide hole arranged on the side of the oil supply pipeline facing the spring plunger and connecting the oil supply pipeline and the spring plunger, and a sealing ring arranged between the spring plunger and the outer wall of the oil supply pipeline and squeezed by the spring in the spring plunger.

2. A stamping die wedge guide plate according to claim 1, characterized in that: The spring plunger comprises: A plunger is detachably connected to the guide plate base, and a cavity is provided inside the plunger for the flow of lubricating oil; The ball head steel ball is arranged at the end of the plunger away from the oil supply pipe, and the end surface of the cavity is provided with an arc surface adapted to the ball head steel ball; a spring disposed in the cavity; The sealing ring is arranged at one end of the plunger close to the oil supply pipeline.

3. The stamping die wedge guide plate according to claim 2, characterized in that: The spring plunger further includes a sliding ring disposed in the cavity and slidably and sealingly connected to the inner wall of the cavity, and the spring is disposed between the ball and the sliding ring.

4. The stamping die wedge guide plate according to claim 3, characterized in that: The sealing ring is arranged between the sliding ring and the outer wall of the oil supply pipeline.

5. The stamping die wedge guide plate according to claim 3, characterized in that: The inner wall of the sealing ring is provided with a guide cylinder adapted to the spring.

6. A stamping die wedge guide plate according to any one of claims 2 to 5, characterized in that: A plurality of internal threaded holes are provided on the guide surface of the guide plate base, and an outer wall of the plunger is provided with external threads that match the internal threaded holes.

7. The stamping die wedge guide plate according to claim 6, characterized in that: The internal threaded hole is perpendicular to the guide surface of the guide plate base.

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