Wedge guide plate lubricating oil way of stamping die

Abstract

The utility model relates to the technical field of die accessories, and particularly discloses a stamping die wedge guide plate lubricating oil way which comprises a plurality of spring plungers arranged on a guide face of a guide plate base body and oil way channels arranged in the guide plate base body and communicated with the interiors of the spring plungers. The oil cup is arranged on the side wall of the guide plate base body and communicated with the oil way channel, the valve rod is in threaded sealing connection with the oil cup, a connecting hole communicated with the oil way channel is formed in the bottom of the oil cup, and one end of the valve rod is located in the oil cup and provided with a piston adjusted with the connecting hole. The inclined wedge guide plate solves the problem that a traditional inclined wedge guide plate cannot control the discharge amount of lubricating oil, so that the lubricating oil cannot completely cover the working face of the guide plate or the lubricating oil is wasted.

Description

Technical Field

[0001] The present application relates to the technical field of mold accessories, and specifically discloses a lubricating oil circuit for a wedge guide plate of 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] However, the discharge of the existing inclined wedge guide plate lubricating oil is mainly affected by the contraction of the ball head steel ball, and there is a lack of an adjustment mechanism to control the amount of lubricating oil, resulting in the inability to effectively control the discharge amount of the lubricating oil. There is a problem that the lubricating oil cannot completely cover the working surface of the guide plate or the lubricating oil is wasted. Therefore, in view of this, the inventor provides a stamping die inclined wedge guide plate lubricating oil circuit to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the problem that the traditional wedge guide plate cannot control the discharge amount of lubricating oil, resulting in the lubricating oil being unable to completely cover the guide plate working surface or the lubricating oil being wasted.

[0007] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides a lubricating oil circuit for the wedge guide plate of a stamping die, including a plurality of spring plungers arranged on the guide surface of the guide plate base and an oil circuit channel arranged in the guide plate base and connected to the interior of the spring plungers, and also including an oil cup arranged on the side wall of the guide plate base and connected to the oil circuit channel and a valve stem threadedly sealed with the oil cup, a connecting hole connected to the oil circuit channel is provided at the bottom of the oil cup, one end of the valve stem is located in the oil cup and is provided with a piston adjusted with the connecting hole, and the other end of the valve stem extends out of the oil cup and is provided with a handle.

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

[0009] Compared with the prior art, the utility model temporarily stores lubricating oil by setting an oil cup, and rotates the valve stem through a handle, and utilizes the threaded fit between the valve stem and the oil cup to adjust the position of the valve stem, and then adjusts the fit relationship and relative distance between the connecting hole and the piston, thereby adjusting the amount of lubricating oil entering the connecting hole, solving the problem that the traditional inclined wedge guide plate cannot control the discharge amount of lubricating oil, resulting in the lubricating oil unable to completely cover the working surface of the guide plate or waste of lubricating oil.

[0010] Furthermore, an adjustment pipe is provided within the oil cup. The end of the adjustment pipe extends beyond the top of the oil cup and is provided with external threads. The valve stem is provided with an adjustment nut located outside the oil cup and mating with the external threads. The provision of the adjustment pipe facilitates sealing between the valve stem and the oil cup by utilizing the external threads at the end of the adjustment pipe to mate with the valve stem.

[0011] Furthermore, a retaining ring is provided on the inner wall of the regulating pipe, and a compressed spring is provided between the retaining ring and the regulating nut. The retaining ring improves the sealing between the regulating pipe and the valve stem, that is, between the regulating pipe and the oil cup, while the spring presses the valve stem and the oil cup against each other.

[0012] Furthermore, the bottom of the regulating pipe is connected to the bottom of the oil cup and is provided with a plurality of oil seepage holes for allowing lubricating oil to pass through. This improves the structural strength of the regulating pipe and ensures that the lubricating oil can be properly introduced into the oil channel.

[0013] Furthermore, mutually adapted inclined surfaces are provided between the piston and the connecting hole, forming an oil seepage gap between the inclined surfaces for receiving the lubricating oil through the hole. By rotating the valve stem, the size of the oil seepage gap, i.e., the amount of lubricating oil discharged, can be adjusted.

[0014] Furthermore, the guide plate base sidewall is provided with a mounting bracket for fixing the oil cup, which facilitates the installation and fixing of the oil cup.

[0015] Furthermore, an oil pipe communicating with the oil passage is provided at the bottom of the oil cup, and the oil pipe facilitates the introduction of lubricating oil in the oil cup into the oil passage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 A schematic diagram of a lubricating oil circuit for a wedge guide plate of a stamping die proposed in an embodiment of the present application is shown;

[0018] Figure 2 A schematic diagram of the lubricating oil circuit structure of a wedge guide plate of a stamping die proposed in an embodiment of the present application is shown;

[0019] Figure 3 A schematic diagram of the internal structure of an oil cup in a lubricating oil circuit of a wedge guide plate of a stamping die proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0020] 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.

[0021] The reference numerals in the drawings of the specification include: guide plate base 1, spring plunger 2, oil pipe 3, oil cup 4, mounting bracket 5, adjusting nut 6, handle 7, oil channel 8, valve stem 9, spring 10, piston 11, adjusting pipe 12, and retaining ring 13.

[0022] A stamping die wedge guide plate lubricating oil circuit, for example Figure 1 As shown, it includes a plurality of spring plungers 2 provided on the guide surface of the guide plate base 1, an oil passage 8 provided in the guide plate base 1 and connected to the interior of the spring plungers 2, an oil cup 4 provided on the side wall of the guide plate base 1 and connected to the oil passage 8, a mounting bracket 5 for mounting the oil cup 4, and a valve stem 9 threadedly sealed with the oil cup 4.

[0023] like Figure 2 and Figure 3As shown, the bottom of the oil cup 4 and the oil passage 8 are connected to each other through the oil pipe 3. A connecting hole connected to the oil passage 8 is provided at the bottom of the oil cup 4. The bottom end of the valve stem 9 is located in the oil cup 4 and is provided with a piston 11 adjusted to the connecting hole. Mutually adapted inclined surfaces are provided between the piston 11 and the connecting hole. An oil seepage gap is formed between the two inclined surfaces to accommodate the lubricating oil through the hole. The top end of the valve stem 9 extends out of the oil cup 4 and is provided with a handle 7.

[0024] An adjusting pipe 12 is provided in the oil cup 4. The top end of the adjusting pipe 12 extends out of the top of the oil cup 4 and is provided with an external thread. The valve stem 9 is provided with an adjusting nut 6 located outside the oil cup 4 and cooperating with the external thread; the bottom of the adjusting pipe 12 is interconnected with the bottom of the oil cup 4 and the adjusting pipe 12 is provided with a plurality of oil seepage holes for allowing lubricating oil to pass through. The inner wall of the adjusting pipe 12 is provided with a retaining ring 13 located above all the oil seepage holes, and a spring 10 in a compressed state is provided between the retaining ring 13 and the adjusting nut 6.

[0025] The side wall of the oil cup 4 is also provided with an oil inlet pipe 3 to facilitate immediate supply of lubricating oil into the oil cup 4, and a breather is provided on the top of the oil cup 4 to maintain constant air pressure.

[0026] In this embodiment, the lubricating oil enters the oil cup 4 for temporary storage, and the valve stem 9 is rotated by the handle 7. The threaded fit between the adjusting nut 6 on the valve stem 9 and the external thread on the adjusting pipe 12 is utilized to adjust the rise or fall of the valve stem 9, thereby adjusting the fitting relationship and relative distance between the connecting hole and the piston 11, that is, adjusting the size of the oil seepage gap, thereby adjusting the amount of lubricating oil entering the connecting hole, that is, adjusting the amount of lubricating oil entering the oil passage 8 and the spring plunger 2, that is, adjusting the amount of lubricating oil discharged when the ball head steel ball in the spring plunger 2 is compressed, thereby solving the problem that the traditional inclined wedge guide plate cannot control the discharge amount of lubricating oil, resulting in the lubricating oil being unable to completely cover the working surface of the guide plate or the lubricating oil being wasted.

[0027] 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 lubricating oil circuit for a wedge guide plate of a stamping die, comprising a plurality of spring plungers provided on a guide surface of a guide plate base and an oil passage provided within the guide plate base and communicating with the interior of the spring plungers, characterized in that: It also includes an oil cup arranged on the side wall of the guide plate base and connected to the oil passage, and a valve stem threadedly sealed with the oil cup. The bottom of the oil cup is provided with a connecting hole connected to the oil passage. One end of the valve stem is located in the oil cup and is provided with a piston adjusted with the connecting hole. The other end of the valve stem extends out of the oil cup and is provided with a handle.

2. A stamping die wedge guide plate lubricating oil circuit according to claim 1, characterized in that: An adjusting pipe is provided in the oil cup, an end of the adjusting pipe extends out of the top of the oil cup and is provided with an external thread, and an adjusting nut is provided on the valve stem and is located outside the oil cup and cooperates with the external thread.

3. A stamping die wedge guide plate lubricating oil circuit according to claim 2, characterized in that: A retaining ring is provided on the inner wall of the adjusting pipe, and a spring in a compressed state is provided between the retaining ring and the adjusting nut.

4. A stamping die wedge guide plate lubricating oil circuit according to claim 2 or 3, characterized in that: The bottom of the regulating pipe is connected to the bottom of the oil cup, and the regulating pipe is provided with a plurality of oil seepage holes for allowing lubricating oil to pass through.

5. The lubricating oil circuit of the cam guide plate of a stamping die according to claim 1, characterized in that: Mutually adapted inclined surfaces are provided between the piston and the connecting hole, and an oil seepage gap for accommodating the lubricating oil through hole is formed between the inclined surfaces.

6. A stamping die wedge guide plate lubricating oil circuit according to claim 1, characterized in that: The side wall of the guide plate base is provided with a mounting bracket for fixing the oil cup.

7. A stamping die wedge guide plate lubricating oil circuit according to claim 1, characterized in that: An oil pipe communicating with the oil passage is provided at the bottom of the oil cup.

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