Stainless steel part polishing tool

By designing a combination of a fixed frame and a hinged arm, and using a hydraulic rod to drive the hinged arm and guide structure, the problem of not being able to clamp and polish stainless steel parts at the same time was solved, achieving a highly efficient and stable polishing effect.

CN121608046APending Publication Date: 2026-03-06SHENYANG FORTUNE PRECISION EQUIP CO LTD
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Patent Information

Application Number
CN202511884170.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-15
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In existing technologies, stainless steel parts cannot be polished while being clamped, which affects polishing efficiency.

Method used

A polishing fixture for stainless steel parts, comprising a fixed frame, a hinged arm, a drive frame, and a guide structure, was designed. The hinged arm and the drive groove are driven by a hydraulic rod to achieve dynamic clamping and self-rotation polishing of stainless steel tubes.

Benefits of technology

This technology enables stainless steel pipes to rotate and be polished while being clamped, improving polishing efficiency and stability and preventing deformation during clamping.

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Abstract

The invention relates to the technical field of stainless steel machining auxiliary equipment, in particular to a stainless steel part polishing tool which comprises a fixing frame, a first hinge arm and a second hinge arm are hinged to the middle of the fixing frame, and hinge heads are hinged to the ends, away from the fixing frame, of the first hinge arm and the second hinge arm; a first driving frame is movably arranged in the middle of the first hinge arm and the middle of the second hinge arm. A third driving frame drives a second driving frame to move, so that the second driving frame is matched with a second driving column through a second driving groove to drive a first hinge arm and a second hinge arm to be synchronously and oppositely hinged to a fixing frame; the first hinge arm and the second hinge arm are matched with the first driving groove, the first driving column and the first driving frame to drive the fixing ball to move towards the position of the stainless steel pipe for clamping, and due to the fact that the fixing ball can move relative to the stainless steel pipe, the purpose that the stainless steel pipe can rotate while being clamped for polishing is achieved.
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Description

Technical Field

[0001] This invention relates to the field of stainless steel processing auxiliary equipment technology, specifically to polishing fixtures for stainless steel parts. Background Technology

[0002] Stainless steel parts are widely used in machinery manufacturing, automotive, aerospace and other fields due to their excellent corrosion resistance and wear resistance. Polishing is a crucial process in the production and processing of stainless steel parts, aiming to improve surface smoothness, remove impurities and burrs, and enhance the product's appearance and performance.

[0003] For example, CN222755155U discloses a stainless steel processing and polishing machine. It includes a base, with two cylinders symmetrically fixedly connected to both ends of the base. A grinding assembly is fixedly connected between the piston rod ends of the two symmetrical cylinders. A clamping assembly is movably connected inside a groove at the top of the base. A bracket is fixedly connected to the top of the clamping assembly, and an adjusting assembly is movably connected inside the bracket. The adjusting assembly extends through the bracket and is fixedly connected to a rotating assembly. This invention uses the rotating assembly to drive the adjusting assembly to rotate, thereby rotating the adjusting assembly into semi-circular arcs of different sizes. By pulling the clamping assembly, a stainless steel pipe is placed between the two adjusting assemblies. The clamping assembly retracts, causing the two adjusting assemblies to clamp and fix the stainless steel pipe. The cylinders drive the grinding assembly to move up and down on the surface of the stainless steel pipe, and the grinding assembly polishes the surface of the stainless steel pipe.

[0004] However, in actual use, the above technology cannot allow for radial and axial movement between the clamp and the stainless steel tube during clamping, making it impossible to perform polishing operations while clamping the stainless steel tube, thus affecting the polishing efficiency of the stainless steel tube. Summary of the Invention

[0005] The purpose of this invention is to provide a polishing fixture for stainless steel parts, so as to solve the problem that it is impossible to perform polishing operation while clamping, which affects the polishing efficiency of stainless steel pipes.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a polishing fixture for stainless steel parts, comprising: A fixed frame, wherein a first hinge arm and a second hinge arm are hinged to the middle of the fixed frame, and a hinge joint is hinged to the end of the first hinge arm and the second hinge arm away from the fixed frame. A first drive frame is movably provided in the middle of the first hinge arm and the second hinge arm. The first drive frame is a hollow structure, and a first drive column is fixedly connected to the inner wall of the first drive frame. A first drive groove is opened in the middle of the first hinge arm and the second hinge arm corresponding to the position of the first drive frame. The first drive column is movably connected to the inner wall of the first drive groove. A receiving groove is opened at one end of the first drive frame corresponding to the center position of the fixed frame. A fixed cover is threadedly connected to one end of the first drive frame corresponding to the receiving groove. A return spring is fixedly connected to the inner wall of the receiving groove. A fixed ball is rotatably connected to the end of the return spring away from the receiving groove. The fixed ball is rotatably connected to the inner wall of the fixed cover and does not detach from its inner wall. The second hinge arm is fixedly connected to a second drive column at one end away from the hinge joint. A second drive frame is movably connected to the surface of the second drive column. A second drive groove is provided in the middle of the second drive frame. The second drive column is movably connected to the inner wall of the second drive groove. A third drive frame is fixedly connected to one end of the second drive frame.

[0007] Preferably, the fixing frame is a hollow structure with a hollow center, and both the fixing frame and the third drive frame have notches at the top for accommodating stainless steel tubes, with the notches located between two adjacent first hinge arms.

[0008] Preferably, the number of the first hinge arm and the second hinge arm on the fixed frame are both three, and the three first hinge arms and the second hinge arms are arranged in a ring in the middle of the fixed frame.

[0009] Preferably, the end of the second hinge arm away from the hinge joint is a hollow structure, and the second drive frame is movably connected to the inner wall of the middle structure of the second hinge arm, and the second drive frame is an arc-shaped structure.

[0010] Preferably, guide plates are fixedly connected to both ends of the fixed frame corresponding to the positions of the two ends of the first drive frame, and guide posts are fixedly connected to one end of the opposite face of the two guide plates. A guide groove is opened at one end of the first drive frame corresponding to the position of the guide post. The guide post is movably connected to the inner wall of the guide groove so that the guide post cooperates with the guide groove to guide the movement of the first drive frame.

[0011] Preferably, there are two fixing frames, and each of the two fixing frames has a connecting rod fixedly connected to one end of its opposite side. A support frame is fixedly connected to the surface of the connecting rod, and a polishing base is fixedly connected to the bottom of the support frame.

[0012] Preferably, a hydraulic rod is fixedly connected to the surface of the third drive frame via mounting ears, and the hydraulic rod is located between the two third drive frames.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention uses a third drive frame to drive a second drive frame to move, so that the second drive frame, through a second drive groove and a second drive column, drives the first hinge arm and the second hinge arm to simultaneously hinge relative to the fixed frame. The first hinge arm and the second hinge arm, together with the first drive groove, the first drive column and the first drive frame, drive the fixed ball to move towards the position of the stainless steel tube for clamping. Since the fixed ball can move relative to the stainless steel tube, the purpose of polishing the stainless steel tube by clamping it while it rotates is achieved. The present invention also includes a guide plate, a guide post, and a guide groove. The first drive groove is an elongated groove that allows the first drive post to move along the inner wall of the first drive groove. When the first hinge arm and the second hinge arm work together with the first drive groove to move the first drive post, the first drive post will drive the first drive frame to move. At this time, the guide plate, the guide post, and the guide groove work together to guide the movement of the first drive frame, so that the first drive frame can only move linearly and drive the fixed ball to complete the stable clamping of the stainless steel tube, thereby achieving the purpose of stable clamping of the stainless steel tube. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the stainless steel parts polishing fixture of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the stainless steel parts polishing fixture of the present invention; Figure 3 This is a schematic diagram of the stainless steel parts polishing fixture fixing frame structure of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the stainless steel parts polishing fixture fixing frame structure of the present invention. Figure 2 ; Figure 5 This is an exploded view of the stainless steel parts polishing fixture fixing frame structure of the present invention.

[0015] In the diagram: 1. Fixed frame; 2. First hinge arm; 3. Second hinge arm; 4. Hinge joint; 5. First drive frame; 6. First drive column; 7. First drive groove; 8. Second drive column; 9. Second drive frame; 10. Second drive groove; 11. Third drive frame; 12. Receiving groove; 13. Return spring; 14. Fixed cover; 15. Fixed ball; 16. Guide plate; 17. Guide column; 18. Guide groove; 19. Connecting rod; 20. Support frame; 21. Polishing base; 22. Hydraulic rod. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figure 1-5 This invention provides a technical solution: a polishing fixture for stainless steel parts, comprising: The fixed frame 1 has a first hinge arm 2 and a second hinge arm 3 hinged in the middle. The first hinge arm 2 and the second hinge arm 3 are hinged to a hinge joint 4 at the end away from the fixed frame 1. The fixed frame 1 has three first hinge arms 2 and three second hinge arms 3, and the three first hinge arms 2 and two hinge arms 3 are arranged in a ring in the middle of the fixed frame 1. A first drive frame 5 is movably provided in the middle of the first hinge arm 2 and the second hinge arm 3. The first drive frame 5 is a hollow structure, and a first drive column 6 is fixedly installed on the inner wall of the first drive frame 5. A first drive groove 7 is opened in the middle of the first hinge arm 2 and the second hinge arm 3 corresponding to the position of the first drive frame 5. The first drive column 6 is movably connected to the inner wall of the first drive groove 7. A receiving groove 12 is opened at one end of the first drive frame 5 corresponding to the center position of the fixed frame 1. A fixed cover 14 is threadedly connected to one end of the first drive frame 5 corresponding to the position of the receiving groove 12. A return spring 13 is fixedly installed on the inner wall of the receiving groove 12. A fixed ball 15 is rotatably connected to the end of the return spring 13 away from the position of the receiving groove 12. The fixed ball 15 is rotatably connected to the inner wall of the fixed cover 14 and does not detach from its inner wall. A second drive column 8 is fixedly installed at one end of the second hinge arm 3 away from the hinge joint 4. A second drive frame 9 is movably connected to the surface of the second drive column 8. A second drive groove 10 is formed in the middle of the second drive frame 9, and the second drive column 8 is movably connected to the inner wall of the second drive groove 10. A third drive frame 11 is fixedly installed at one end of the second drive frame 9. The end of the second hinge arm 3 away from the hinge joint 4 is a hollow structure, and the second drive frame 9 is movably connected to the inner wall of the middle structure of the second hinge arm 3. The second drive frame 9 is an arc-shaped structure. The fixing frame 1 is a hollow structure in the middle. The fixing frame 1 and the third drive frame 11... The top of each frame has a notch for accommodating stainless steel tubes, and the notch is located between two adjacent first hinge arms 2. The notch on the top of the frame 1 and the first hinge arm 2 facilitates the insertion and removal of stainless steel tubes for clamping operations. There are two frames 1, and a connecting rod 19 is fixedly installed on one end of the opposite side of each of the two frames 1. A support frame 20 is fixedly installed on the surface of the connecting rod 19, and a polishing base 21 is fixedly installed on the bottom of the support frame 20. A hydraulic rod 22 is fixedly installed on the surface of the third drive frame 11 through a mounting ear, and the hydraulic rod 22 is located between the two third drive frames 11. In use, the above structure retracts the hydraulic rod 22, causing the two third drive frames 11 to move away from the fixed frame 1. This causes the third drive frames 11 to move the second drive frame 9, and the second drive frame 9, through the second drive groove 10 and the second drive column 8, drives the second hinge arm 3 to hinge. This causes the first hinge arm 2 and the second hinge arm 3 to rotate synchronously. The first hinge arm 2 and the second hinge arm 3, through the first drive groove 7 and the first drive column 6, drive the first drive frame 5 to move towards the stainless steel tube. This causes the first drive frame 5, through the fixed cover 14, to drive the fixed ball 15 to contact the stainless steel tube. A return spring 13 is provided to ensure that... The contact and flexible connection between the fixed ball 15 and the stainless steel tube prevent the stainless steel tube from being deformed due to the hard compression of the fixed ball 15. When the three fixed balls 15 are in a ring shape and press against the surface of the stainless steel tube, the clamping of the stainless steel tube is completed. Since the fixed ball 15 is rotatably connected to the inner wall of the fixed cover 14 and does not detach from the inner wall of the fixed cover 14, the clamping of the fixed ball 15 and the stainless steel tube can be dynamic. That is, under the premise that the stainless steel tube is clamped by the three fixed balls 15, a single fixed ball 15 can move relative to the stainless steel tube, thereby realizing the purpose of polishing the stainless steel tube while it is being clamped and rotating.

[0018] Guide plates 16 are fixedly installed at both ends of the fixed frame 1 corresponding to the positions of the two ends of the first drive frame 5, and guide posts 17 are fixedly installed at one end of the opposite face of the two guide plates 16. A guide groove 18 is opened at one end of the first drive frame 5 corresponding to the position of the guide post 17. The guide post 17 is movably connected to the inner wall of the guide groove 18 so that the guide post 17 cooperates with the guide groove 18 to guide the movement of the first drive frame 5. In use, the above structure is equipped with a guide plate 16, a guide post 17, and a guide groove 18. The first drive groove 7 is an elongated groove that allows the first drive post 6 to move along the inner wall of the first drive groove 7. When the first hinge arm 2 and the second hinge arm 3 work together with the first drive groove 7 to move the first drive post 6, the first drive post 6 will drive the first drive frame 5 to move. At this time, the guide plate 16, the guide post 17, and the guide groove 18 work together to guide the movement of the first drive frame 5, so that the first drive frame 5 can only move linearly and drive the fixed ball 15 to complete the stable clamping of the stainless steel tube, thereby achieving the purpose of stable clamping of the stainless steel tube.

[0019] Working principle: In use, the invention places the stainless steel tube between the fixed frame 1 and the third drive frame 11 through the notch at the top of the fixed frame 1 and the third drive frame 11. When it is necessary to clamp the stainless steel tube, the hydraulic rod 22 retracts to drive the two third drive frames 11 to move closer to each other, that is, the third drive frame 11 moves away from the fixed frame 1. When the third drive frame 11 moves away from the fixed frame 1, it causes the second drive frame 9 to move. Since the second drive frame 9 has an arc-shaped structure, it drives the second hinge arm 3 to hinge through the second drive groove 10 and the second drive column 8. When the second hinge arm 3 hinges, it simultaneously drives the first hinge arm 2 to hinge with the hinge joint 4. That is, the first hinge arm 2 and the second hinge arm 3 are simultaneously hinged relative to the fixed frame 1. When the first hinge arm 2 and the second hinge arm 3 rotate synchronously, they engage with the first drive groove 7. The first drive column 6 drives the first drive frame 5 to move towards the position of the stainless steel tube, and the first drive frame 5 drives the fixed ball 15 to contact the stainless steel tube through the fixed cover 14. The fixed ball 15 is provided with a return spring 13 to make the contact between the fixed ball 15 and the stainless steel tube soft connection, so as to avoid the fixed ball 15 hard squeezing the stainless steel tube and causing deformation of the stainless steel tube. When the three fixed balls 15 are in ring shape and squeeze the surface of the stainless steel tube, the clamping of the stainless steel tube is completed. According to different processing needs, the force of the fixed ball 15 and the return spring 13 squeezing the stainless steel tube can be adjusted to meet the different processing needs of the stainless steel tube. Since the fixed ball 15 is rotatably connected to the inner wall of the fixed cover 14 and does not detach from the inner wall of the fixed cover 14, the clamping of the fixed ball 15 and the stainless steel tube can be dynamic. That is, under the premise that the stainless steel tube is clamped by the three fixed balls 15, a single fixed ball 15 can move relative to the stainless steel tube, thereby realizing the purpose of polishing the stainless steel tube while it is being clamped and rotating. By setting a guide plate 16, a guide post 17, and a guide groove 18, wherein the first drive groove 7 is an elongated groove, the first drive post 6 is allowed to move on the inner wall of the first drive groove 7, and when the first hinge arm 2 and the second hinge arm 3 cooperate with the first drive groove 7 to drive the first drive post 6 to move, the first drive post 6 will drive the first drive frame 5 to move. At this time, the guide plate 16, the guide post 17, and the guide groove 18 cooperate to guide the movement of the first drive frame 5, so that the first drive frame 5 can only move linearly and drive the fixed ball 15 to complete the stable clamping of the stainless steel tube, thereby achieving the purpose of stable clamping of the stainless steel tube; The notches at the top of the fixing frame 1 and the first hinge arm 2 facilitate the insertion and removal of the stainless steel tube, thereby enabling clamping operations.

[0020] 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.

[0021] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A polishing tool for stainless steel parts, characterized in that: The utility model relates to a kind of fixed frame (1), the middle part of the fixed frame (1) is hinged with first articulated arm (2) and second articulated arm (3), and the end of the first articulated arm (2) and second articulated arm (3) away from fixed frame (1) position is hinged with articulated head (4);The middle part of the first articulated arm (2) and second articulated arm (3) is movably provided with first drive frame (5), and the first drive frame (5) is hollow structure, and the inner wall of first drive frame (5) is fixedly connected with first drive column (6), and the middle part of the first articulated arm (2) and second articulated arm (3) corresponding first drive frame (5) position is respectively provided with first drive slot (7), and first drive column (6) is movably connected in the inner wall of first drive slot (7), and the end of first drive frame (5) corresponding the center position of fixed frame (1) is provided with accommodating groove (12), and the end of first drive frame (5) corresponding accommodating groove (12) position is threadedly connected with fixed cover (14), the inner wall of accommodating groove (12) is fixedly connected with return spring (13), and the end of return spring (13) away from accommodating groove (12) position is rotatably connected with fixed ball (15), and fixed ball (15) is rotatably connected in the inner wall of fixed cover (14) and does not depart from its inner wall; The end of the second articulated arm (3) away from articulated head (4) position is fixedly connected with second drive column (8), the surface of second drive column (8) is movably connected with second drive frame (9), the middle part of second drive frame (9) is provided with second drive slot (10), and second drive column (8) is movably connected in the inner wall of second drive slot (10), and one end of second drive frame (9) is fixedly connected with third drive frame (11). The fixed frame (1) is hollow in the middle and has a hollow structure, and the top of the fixed frame (1) and the third drive frame (11) is provided with a notch for accommodating a stainless steel pipe, and the notch is located between the two adjacent first articulated arms (2). The number of the first articulated arms (2) and the second articulated arms (3) on the fixed frame (1) is three respectively, and the three first articulated arms (2) and the second articulated arms (3) are arranged in the middle of the fixed frame (1) in a ring shape.

2. The polishing tool for stainless steel parts according to claim 1, wherein: The end of the second articulated arm (3) away from articulated head (4) position is hollow structure, and the inner wall of the second drive frame (9) is movably connected in the middle structure position of the second articulated arm (3), and the second drive frame (9) is arc-shaped structure.

3. The polishing tool for stainless steel parts according to claim 2, wherein: The end of the fixed frame (1) corresponding to the position of the two ends of the first drive frame (5) is fixedly connected with a guide plate (16) respectively, and the end of the opposite surface of the two guide plates (16) is fixedly connected with a guide column (17) respectively, the end of the first drive frame (5) corresponding to the position of the guide column (17) is provided with a guide slot (18), and the guide column (17) is movably connected in the inner wall of the guide slot (18), so that the guide column (17) cooperates with the guide slot (18) to guide the movement of the first drive frame (5).

4. The polishing tool for stainless steel parts according to claim 3, wherein: ​ 5. The stainless steel part polishing tooling of claim 4, wherein: ​ 6. The stainless steel part polishing tooling of claim 5, wherein: The quantity of the fixing frame (1) is two, and one end of opposite faces of the two fixing frames (1) is fixedly connected with a connecting rod (19) respectively, the surface of the connecting rod (19) is fixedly connected with a supporting frame (20), and the bottom of the supporting frame (20) is fixedly connected with a polishing base (21).

7. The stainless steel part polishing tooling of claim 6, wherein: The surface of the third driving frame (11) is fixedly connected with a hydraulic rod (22) through a mounting lug, and the hydraulic rod (22) is located between the positions of the two third driving frames (11).