A finishing apparatus for a die steel surface

Abstract

The utility model discloses a kind of finish machining equipment of die steel surface, including support ring cover, four horizontal telescopic rods are installed on support ring cover, four horizontal telescopic rods are distributed in the form of circular array, four horizontal telescopic rod output end is all installed with receiving plate, four receiving plates are all rotatably connected with rotary chuck to one side, wherein, two receiving plates of adjacent other side are all installed with driving motor, two driving motor output end is installed in corresponding rotary chuck one end, electromagnetic chuck is provided at the inside center of support ring cover;Through the magnetic force adsorption of electromagnetic chuck and the clamping of four rotary chuck combination, the stable fixation from preliminary to further to die steel is realized, different size specifications of die steel can be adapted, especially key is, driving motor drives rotary chuck so that die steel can be multi-angle rotated, let polishing tool can conveniently process the multi-region surface of die steel.

Description

Technical Field

[0001] This utility model relates to the field of grinding machine technology, specifically a precision machining equipment for the surface of mold steel. Background Technology

[0002] In the mold manufacturing industry, the surface finishing of mold steel is a crucial step that determines the precision, service life, and quality of molded products. Its core objectives are to achieve high-precision dimensional control, low surface roughness, and uniform surface quality, while ensuring the mold steel surface meets performance requirements such as wear resistance and corrosion resistance under various working conditions. Grinding and polishing, a common process in mold steel surface finishing, is widely used to eliminate tool marks and grinding scratches left from previous cutting or grinding processes, further reducing surface roughness and laying the foundation for subsequent performance-enhancing processes such as coating and nitriding. It is indispensable, especially in injection molds and optical molds where stringent surface finish requirements exist. However, current mainstream mold steel grinding and polishing equipment generally suffers from structural design limitations, only able to operate on a single surface of the mold steel in a single process, resulting in significantly insufficient equipment flexibility. When multiple areas of mold steel need to be ground and polished, operators need to frequently disassemble, reposition, and reassemble the mold steel workpiece. This not only increases the complexity of the operation and extends the working time, but also easily causes positioning errors due to multiple clamping, affecting the consistency of the surface processing accuracy of the mold steel. This restricts the overall processing efficiency and mold manufacturing quality, making it difficult to meet the demand for efficient and high-precision processing in modern mold production.

[0003] Therefore, this utility model provides a finishing equipment for the surface of mold steel. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a finishing equipment for the surface of mold steel, thereby solving the problem that operators need to frequently disassemble, reposition, and reinstall mold steel workpieces.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precision machining device for mold steel surfaces, comprising a support ring cover, on which four transverse telescopic rods are mounted, arranged in a circular array, and each of the four transverse telescopic rods has a receiving plate mounted at its output end. Each of the four receiving plates is rotatably connected to a rotating clamp on one side of its opposite side. A drive motor is mounted on the other side of each of two adjacent receiving plates, and the output ends of the two drive motors are mounted on one end of the corresponding rotating clamp. An electromagnetic chuck is located at the center of the support ring cover, positioned below and between the four rotating clamps.

[0006] Preferably, a hemispherical base is installed at the bottom of the support ring cover, and four support legs are installed on the outside of the hemispherical base cover, with the four support legs arranged in a circumferential array.

[0007] Preferably, the bottom of the hemispherical cover has a discharge hole, and a waste discharge pipe is installed at the bottom of the hemispherical cover, with the waste discharge pipe corresponding to the position of the discharge hole.

[0008] Preferably, all four rotary clamping surfaces are provided with anti-slip pads to increase the contact friction with the sides of the mold steel.

[0009] Preferably, the electromagnetic chuck is provided with a lifting telescopic rod at the bottom, and support rods are installed on both sides of the lifting telescopic rod, with both support rods installed inside the support ring cover.

[0010] Preferably, a baffle is installed at the bottom of the electromagnetic chuck, and the baffle is fitted over the outside of the lifting telescopic rod. Beneficial effects

[0011] Compared with the prior art, the present invention has the following advantages: This invention combines the magnetic attraction of an electromagnetic chuck with the clamping of four rotating chucks to achieve stable fixation of mold steel from initial to final stages. Simultaneously, the lateral telescopic rod allows for flexible adjustment of the position of the receiving plate and rotating chucks, accommodating mold steel of different sizes and specifications. Crucially, the drive motor rotates the chucks at multiple angles, enabling polishing tools to easily process multiple areas of the mold steel without the frequent disassembly, repositioning, and reassembly required by traditional equipment. This not only avoids positioning errors caused by multiple clamping operations and ensures consistent surface processing accuracy, but also significantly reduces operational complexity, shortens working hours, and substantially improves overall processing efficiency and mold manufacturing quality. It effectively meets the demands of modern mold production for high-efficiency, high-precision processing, successfully solving the problems of traditional mold steel polishing equipment that can only operate on a single surface at a time, lacks flexibility, is cumbersome to operate, and severely impacts work efficiency. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention; Figure 3 This is the utility model Figure 2 A magnified view of the structure at point A in the middle; Figure 4 This is an enlarged cross-sectional structural diagram of components such as the lifting telescopic rod in this utility model.

[0013] In the diagram: 1. Support ring cover; 11. Hemispherical bottom cover; 111. Waste discharge pipe; 12. Support leg; 2. Lateral telescopic rod; 21. Support plate; 22. Rotary clamp; 221. Anti-slip pad; 23. Drive motor; 3. Electromagnetic chuck; 31. Lifting telescopic rod; 32. Support rod; 33. Barrier cover. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 A finishing device for the surface of mold steel includes a support ring cover 1, on which four transverse telescopic rods 2 are installed. The four transverse telescopic rods 2 are arranged in a circumferential array. Each of the four transverse telescopic rods 2 has a receiving plate 21 installed at its output end. Each of the four receiving plates 21 is rotatably connected to a rotary chuck 22 on one side opposite to the other. Each of the two adjacent receiving plates 21 has a drive motor 23 installed on its other side. The output ends of the two drive motors 23 are installed at one end of the corresponding rotary chuck 22. An electromagnetic chuck 3 is provided at the center inside the support ring cover 1, and the electromagnetic chuck 3 is located below the four rotary chucks 22.

[0016] It should be noted that the four rotary clamps 22 described in this embodiment are arranged in a cross shape. Each pair of rotary clamps 22 are used in combination, and the two drive motors 23 drive the mold steel to rotate at two different angles through the corresponding rotary clamps 22.

[0017] Specifically, during operation, the mold steel to be processed is first placed on the electromagnetic chuck 3 at the center of the support ring cover 1. The electromagnetic chuck 3 is energized to generate magnetic force, which initially attracts and fixes the mold steel to prevent displacement during the initial stage of subsequent processing. Subsequently, four horizontal telescopic rods 2 arranged in a circumferential array begin to extend, driving the receiving plates 21 at their respective output ends to move towards the mold steel. This causes the four rotating clamps 22 to gradually approach and contact the surface of the mold steel, thereby further clamping and fixing the mold steel to ensure its stability during processing. Since the four rotating clamps 22 are arranged in a cross shape... The plates are distributed in pairs for coordinated use. When the drive motor 23 on the other side of the two adjacent receiving plates 21 starts working, the output end of the drive motor 23 will drive the corresponding rotary chuck 22 to rotate. The rotary chuck 22 will then drive the mold steel to rotate at two different angles. When grinding and polishing the mold steel, the mold steel can achieve multi-directional and multi-angle rotation with the help of the rotation of the rotary chuck 22. In this way, the grinding and polishing tool can process different areas of the mold steel, including the side and different inclined surfaces, without interrupting the processing to disassemble the mold steel to adjust the processing surface.

[0018] In one embodiment of this utility model, such as Figures 1-4 As shown, a hemispherical base cover 11 is installed at the bottom of the support ring cover 1, and four support legs 12 are installed on the outside of the hemispherical base cover 11. The four support legs 12 are arranged in a circular array.

[0019] Specifically, during the grinding and polishing of mold steel, a large amount of metal debris is generated. The hemispherical bottom cover 11 at the bottom of the support ring cover 1 has an arc-shaped inner wall structure that allows the generated debris to slide naturally down and gather along the hemispherical slope under its own gravity. Compared with flat or other shaped bottom structures, this arc-shaped slope design can guide the debris more smoothly, allowing the debris to concentrate in the bottom area of ​​the hemispherical bottom cover 11. This facilitates the subsequent unified collection and processing of these debris, preventing the debris from scattering around inside the equipment and affecting equipment cleaning and subsequent processing operations.

[0020] In one embodiment of this utility model, such as Figures 1-4 As shown, a discharge hole is provided at the bottom of the hemispherical bottom cover 11, and a waste discharge pipe 111 is installed at the bottom of the hemispherical bottom cover 11, with the waste discharge pipe 111 corresponding to the position of the discharge hole.

[0021] Specifically, during the grinding and polishing of mold steel, the metal debris generated slides down the arc-shaped inner wall of the hemispherical base 11 to the bottom and accumulates at the discharge hole. At this time, the accumulated debris can be quickly and centrally discharged from the hemispherical base 11 by means of the discharge pipe 111 corresponding to the discharge hole, either with the help of an external suction device or by the weight of the debris itself. This achieves efficient cleaning of the debris, prevents the debris from accumulating inside the base, ensures the cleanliness of the equipment interior, and creates favorable conditions for subsequent continuous processing.

[0022] In one embodiment of this utility model, such as Figures 1-4 As shown, the extrusion surfaces of the four rotating clamping plates 22 are all equipped with anti-slip pads 221 to increase the contact friction with the sides of the mold steel.

[0023] Specifically, when the mold steel is clamped and fixed using four rotating chucks 22, the anti-slip pads 221 on the pressing surface of the rotating chucks 22 directly contact the side of the mold steel. Because the anti-slip pads 221 have a high coefficient of friction, their contact with the side of the mold steel significantly increases the contact friction between them. This friction effectively prevents the mold steel from sliding or shifting relative to the outside during processing, ensuring that the mold steel maintains a stable clamping state and precise processing position. This guarantees the accuracy of grinding and polishing while avoiding processing defects or equipment wear caused by mold steel slippage.

[0024] In one embodiment of this utility model, such as Figures 1-4 As shown, the electromagnetic chuck 3 has a lifting telescopic rod 31 at its bottom, and support rods 32 are installed on both sides of the lifting telescopic rod 31. Both support rods 32 are installed inside the support ring cover 1.

[0025] Specifically, before processing the mold steel, the height of the electromagnetic chuck 3 inside the support ring cover 1 can be changed by adjusting the extension length of the lifting telescopic rod 31 at the bottom of the electromagnetic chuck 3 to accommodate mold steels of different thicknesses. When the mold steel is thick, the lifting telescopic rod 31 is shortened to lower the height of the electromagnetic chuck 3, preventing the top of the mold steel from exceeding the clamping range of the rotary chuck 22. When the mold steel is thin, the lifting telescopic rod 31 is extended to raise the height of the electromagnetic chuck 3, ensuring that the side of the mold steel can make precise contact with the rotary chuck 22 and ensuring clamping stability. At the same time, the support rods 32 installed on both sides of the lifting telescopic rod 31 are fixed at one end to the inside of the support ring cover 1, and the other end provides lateral support to the lifting telescopic rod 31, preventing the lifting telescopic rod 31 from tilting or shaking laterally when bearing the weight of the mold steel or during equipment operation. This ensures the accuracy of the height adjustment of the electromagnetic chuck 3 and the structural stability during use, thereby providing a reliable guarantee for the stable clamping of the mold steel and subsequent processing.

[0026] In one embodiment of this utility model, such as Figures 1-4As shown, a baffle cover 33 is installed at the bottom of the electromagnetic chuck 3, and the baffle cover 33 is sleeved on the outside of the lifting telescopic rod 31.

[0027] Specifically, during the grinding and polishing process of the mold steel, metal shavings are generated, some of which may fall towards the lifting telescopic rod 31 at the bottom of the electromagnetic chuck 3. The baffle 33, installed at the bottom of the electromagnetic chuck 3 and fitted over the outside of the lifting telescopic rod 31, forms a ring-shaped shielding structure, directly preventing these scattered metal shavings from contacting the gaps in the telescopic components of the lifting telescopic rod 31. This prevents shavings from entering the interior of the lifting telescopic rod 31, thus preventing jamming and reduced accuracy, or wear and tear on the components that could affect its service life. Simultaneously, it ensures that the lifting telescopic rod 31 can always smoothly and accurately adjust the height of the electromagnetic chuck 3, ensuring the overall processing stability of the equipment.

[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0029] Working Principle: When this die steel surface finishing equipment is working, the die steel to be processed is first placed on the electromagnetic chuck 3 at the center of the support ring cover 1. The electromagnetic chuck 3 is energized to generate magnetic force to initially attract and fix the die steel. At the same time, the extension length of the lifting telescopic rod 31 at the bottom of the electromagnetic chuck 3 can be adjusted to adapt to die steel of different thicknesses. For thick die steel, the telescopic rod is shortened to lower the height of the chuck, and for thin die steel, the telescopic rod is lengthened to raise the height of the chuck, ensuring that the side of the die steel can make precise contact with the rotating clamp 22. The support rods 32 on both sides of the lifting telescopic rod 31 provide lateral support to prevent it from tilting or swaying. Next, the four horizontal telescopic rods 2 arranged in a circular array extend, driving the receiving plate 21 and the rotating clamp 22 closer to the die steel. The anti-slip pad 221 on the clamping surface contacts the side of the die steel, further stabilizing the clamping by increasing friction. During processing, the drive motor 23 on the adjacent receiving plate 21 drives the corresponding rotary chuck 22 to rotate. Because the chucks are arranged in a cross shape and each pair is used in conjunction, the mold steel can be rotated at two different angles, allowing the grinding and polishing tools to process multiple areas of the mold steel without frequent disassembly and clamping. The metal chips generated during processing slide down the arc-shaped inner wall of the hemispherical bottom cover 11 at the bottom of the support ring cover 1 to the bottom discharge hole, and then are discharged through the corresponding waste discharge pipe 111. At the same time, the baffle cover 33, which is sleeved on the outside of the lifting telescopic rod 31 at the bottom of the electromagnetic chuck 3, can prevent chips from entering the telescopic rod and ensure stable operation of the equipment.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A finishing device for the surface of mold steel, comprising a support ring cover (1), characterized in that, Four horizontal telescopic rods (2) are installed on the support ring cover (1). The four horizontal telescopic rods (2) are arranged in a circular array. Each of the four horizontal telescopic rods (2) has a receiving plate (21) installed at its output end. Each of the four receiving plates (21) is rotatably connected to a rotating clamp (22) on one side of its opposite side. Each of the two adjacent receiving plates (21) has a drive motor (23) installed on its other side. The output ends of the two drive motors (23) are installed at one end of the corresponding rotating clamp (22). An electromagnetic chuck (3) is set at the center inside the support ring cover (1). The electromagnetic chuck (3) is located below the four rotating clamps (22).

2. The finishing equipment for the surface of mold steel according to claim 1, characterized in that, The bottom of the support ring cover (1) is equipped with a hemispherical bottom cover (11), and four support legs (12) are installed on the outside of the hemispherical bottom cover (11). The four support legs (12) are arranged in a circular array.

3. The finishing equipment for the surface of mold steel according to claim 2, characterized in that, The bottom of the hemispherical cover (11) is provided with a discharge hole, and a waste discharge pipe (111) is installed at the bottom of the hemispherical cover (11), with the waste discharge pipe (111) corresponding to the position of the discharge hole.

4. The finishing equipment for the surface of mold steel according to claim 1, characterized in that, The four rotary chucks (22) are provided with anti-slip pads (221) on their extrusion surfaces to increase the contact friction with the sides of the mold steel.

5. The finishing equipment for the surface of mold steel according to claim 1, characterized in that, The electromagnetic chuck (3) is provided with a lifting telescopic rod (31) at the bottom. Support rods (32) are installed on both sides of the lifting telescopic rod (31). Both support rods (32) are installed inside the support ring cover (1).

6. The finishing equipment for the surface of mold steel according to claim 5, characterized in that, The electromagnetic chuck (3) is equipped with a baffle (33) at the bottom, and the baffle (33) is fitted on the outside of the lifting telescopic rod (31).

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