Workpiece jig mechanism and polishing machine

Abstract

The workpiece jig mechanism comprises a machine frame, a first frame, a second frame, a first driving piece, a second driving piece and a fixing assembly, the first driving piece is arranged on the machine frame, the first frame is rotationally arranged on the machine frame and connected with the first driving piece, and the second frame is rotationally arranged on the machine frame and connected with the second driving piece. The first driving part can drive the first frame ring to rotate along the first axis, the second driving part is arranged on the first frame, the second frame is rotationally arranged on the first frame and connected with the second driving part, the second driving part can drive the second frame ring to rotate along the second axis, and the fixing assembly is arranged on the second frame, located between the second frame and the first axis and used for fixing a workpiece. By means of the structure, composite rotating motion of the workpiece around the two non-collinear axes can be achieved, so that limitation of traditional X-axis linear movement, Y-axis linear movement and Z-axis linear movement can be broken through, the workpiece can rotate or the inclination angle of the workpiece can be adjusted, and the requirement for all-circumferential polishing of the curved surface workpiece (such as a bent pipe faucet) can be met.

Description

Technical Field

[0001] This utility model relates to the field of polishing technology, and in particular to a workpiece fixture mechanism and a polishing machine. Background Technology

[0002] A polishing machine is a precision device used for surface treatment. It uses high-speed rotating polishing wheels, abrasive belts, etc., to grind and polish workpieces, thereby improving the surface smoothness and texture. In existing technologies, the moving mechanism of a polishing machine is equipped with a fixture mechanism for fixing the workpiece. This moving mechanism can drive the workpiece on the fixture mechanism to move (linear movement along the XYZ axes) to cooperate with the polishing mechanism of the polishing machine (such as abrasive belt polishing mechanism, polishing wheel polishing mechanism, etc.) to complete the grinding and polishing operation of the workpiece. However, after in-depth research on existing polishing machines, the inventors found that adjusting the workpiece position only through linear movement lacks the ability to adjust rotation or tilt angle, making it difficult to meet the full circumferential polishing requirements of curved workpieces (such as curved faucets). Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a workpiece fixture mechanism.

[0004] This utility model also proposes a polishing machine having the workpiece fixture mechanism.

[0005] A workpiece fixture mechanism according to a first aspect of the present invention includes a frame, a first frame, a second frame, a first driving member, a second driving member, and a fixing component. The first driving member is disposed on the frame, the first frame is rotatably disposed on the frame and connected to the first driving member, and the first driving member is capable of driving the first frame to rotate around a first axis. The second driving member is disposed on the first frame, the second frame is rotatably disposed on the first frame and connected to the second driving member, and the second driving member is capable of driving the second frame to rotate around a second axis. The fixing component is disposed on the second frame and located between the second frame and the first axis, and the fixing component is used to fix the workpiece.

[0006] A workpiece fixture mechanism according to an embodiment of the present utility model has at least the following beneficial effects:

[0007] With the above structure, the first driving component drives the first frame to rotate around the first axis, and the second driving component drives the second frame to rotate around the second axis. This dual-axis structure enables the workpiece to achieve compound rotational motion around two non-collinear axes. Therefore, it can break through the limitation of linear movement of the traditional XYZ axis, allowing the workpiece to rotate or adjust its tilt angle to meet the full circumferential polishing requirements of curved workpieces (such as curved faucets).

[0008] According to some embodiments of the present invention, the first axis and the second axis are arranged perpendicularly.

[0009] According to some embodiments of the present invention, the first frame includes a first arm and a second arm. One end of the first arm is rotatably disposed on the frame and connected to the first drive member, and the other end is fixedly connected to one end of the second arm. The second drive member is disposed on the first arm or the second arm, and the second frame is rotatably disposed on the other end of the second arm.

[0010] According to some embodiments of the present invention, the first frame has an L-shaped structure.

[0011] According to some embodiments of the present invention, the first axis is arranged in a vertical direction, and the second axis is arranged in a horizontal direction.

[0012] According to some embodiments of the present invention, the fixing assembly includes a third driving member, a mounting cylinder, an expansion tube, and a push rod. The third driving member is disposed on the second frame. One end of the mounting cylinder is disposed on the third driving member. The expansion tube passes through the other end of the mounting cylinder. The push rod passes through the mounting cylinder and the expansion tube. The end of the expansion tube located outside the mounting cylinder is provided with at least two expansion portions for workpiece fitting. The push rod is connected to the third driving member. The third driving member can drive the push rod to move and push the expansion portions so that at least two expansion portions can expand and abut against the workpiece fixed thereon.

[0013] According to some embodiments of the present invention, two fixing components are provided, one of which is fixed to the second frame, and the other is rotatably and adjustablely disposed on the second frame.

[0014] The polishing machine according to a second aspect of the present invention includes a workpiece fixture mechanism as described above.

[0015] The polishing machine according to the present invention has at least the following beneficial effects: Through the above structure, the linear displacement of the dual-axis rotation combined with the moving mechanism can be adjusted in various ways to adjust the contact posture between the workpiece and the polishing components (such as sanding belts, polishing wheels, etc.), so as to ensure uniform polishing pressure distribution and significantly improve the surface finish consistency of the workpiece.

[0016] According to some embodiments of the present invention, the polishing machine includes a polishing mechanism, which is provided with at least two polishing wheels of different sizes.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a structural diagram of an embodiment of the workpiece fixture mechanism of this utility model;

[0020] Figure 2 for Figure 1 The diagram shows the structure of the workpiece fixture mechanism after some components have been removed and a tubular workpiece has been installed.

[0021] Figure 3 for Figure 1 The diagram shows the structure of the workpiece fixture mechanism after some components have been removed.

[0022] Figure label:

[0023] 100 racks;

[0024] First frame 210, first boom 211, second boom 212, second frame 220, rotating block 221;

[0025] First drive component 310, second drive component 320;

[0026] Fixed component 400, third drive component 410, mounting cylinder 420, expansion tube component 430, expansion plate part 431, push rod 440;

[0027] First axis L1, second axis L2, third axis L3. Detailed Implementation

[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0029] In the description of this utility model, the use of terms such as first, second, third, fourth, and fifth is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] Reference Figures 1 to 3 This utility model discloses a workpiece fixture mechanism, which includes a frame 100, a first frame 210, a second frame 220, a first drive member 310, a second drive member 320, and a fixing component 400. The first drive member 310 is disposed on the frame 100, and the first frame 210 is rotatably disposed on the frame 100 and connected to the first drive member 310. The first drive member 310 can drive the first frame 210 to rotate around a first axis L1. The second drive member 320 is disposed on the first frame 210, and the second frame 220 is rotatably disposed on the first frame 210 and connected to the second drive member 320. The second drive member 320 can drive the second frame 220 to rotate around a second axis L2. The first axis L1 is arranged vertically, and the second axis L2 is arranged horizontally. The first axis L1 and the second axis L2 are arranged perpendicularly. The fixing component 400 is disposed on the second frame 220 and located between the second frame 220 and the first axis L1. The fixing component 400 is used to fix the workpiece.

[0033] It is understandable that the first axis L1 is the axis on which the first frame 210 rotates relative to the frame 100; the second axis L2 is the axis on which the second frame 220 rotates relative to the first frame 210.

[0034] With the above structure, the first driving member 310 drives the first frame 210 to rotate around the first axis L1, and the second driving member 320 drives the second frame 220 to rotate around the second axis L2. This dual-axis structure can realize the composite rotational motion of the workpiece around two non-collinear axes. Therefore, it can break through the limitation of the traditional linear movement of the XYZ axis, and enable the workpiece to rotate or adjust its tilt angle to meet the full circumferential polishing requirements of curved workpieces (such as curved faucets).

[0035] In this embodiment, refer to Figure 1 and Figure 2 The first frame 210 has an L-shaped structure and includes a first arm 211 and a second arm 212. One end of the first arm 211 is rotatably mounted on the frame 100 and connected to the first drive member 310, and the other end is fixedly connected to one end of the second arm 212. The second drive member 320 is mounted on the first arm 211, and the second frame 220 is rotatably mounted on the other end of the second arm 212.

[0036] One end of the first arm 211 is connected to the first drive member 310, specifically, see [reference]. Figure 2 The first drive unit 310 includes a motor and a reducer both mounted on the frame 100. The input end of the reducer is connected to the motor, and the output end of the reducer is connected to one end of the first arm 211.

[0037] The second aircraft 220 is connected to the second drive unit 320. For details, please refer to... Figure 1 The second frame 220 is connected to the first rotating wheel, and the second drive component 320 is connected to the second rotating wheel. The first and second rotating wheels are fitted with a transmission belt. The second drive component 320 is a motor.

[0038] In some embodiments, the first frame 210 is an irregularly shaped frame having the first arm 211 and the second arm 212 described above.

[0039] In some embodiments, the second drive member 320 is disposed on the second arm member 212, the second drive member 320 is configured as a motor, and the output shaft of the second drive member 320 is directly connected to the second frame 220.

[0040] In this embodiment, refer to Figure 3 The fixing assembly 400 includes a third driving member 410, a mounting cylinder 420, an expansion tube 430, and a push rod 440. The third driving member 410 is located on the second frame 220. One end of the mounting cylinder 420 is located on the third driving member 410. The expansion tube 430 passes through the other end of the mounting cylinder 420. The push rod 440 passes through the mounting cylinder 420 and the expansion tube 430. The end of the expansion tube 430 located outside the mounting cylinder 420 is provided with four expansion portions 431 for workpiece fitting. The push rod 440 is connected to the third driving member 410. The third driving member 410 can drive the push rod 440 to move and push the expansion portions 431 so that the four expansion portions 431 can expand and press against the workpiece fixed thereon. The push rod 440 is threadedly connected to the mounting cylinder 420, and the third drive member 410 is a motor. The third drive member 410 can drive the push rod 440 to rotate so that the push rod 440 can move within the mounting cylinder 420 and the expansion tube 430.

[0041] Understandably, the third drive member 410 can drive the push rod 440 to move and release the push expansion portion 431, so that the four expansion portions 431 can retract and release the workpiece fixed thereon.

[0042] In some embodiments, the third drive member 410 is configured as a cylinder member, and the output shaft of the third drive member 410 extends and retracts to drive the push rod 440 to move within the mounting cylinder 420 and the expansion tube 430.

[0043] In this embodiment, refer to Figure 2 and Figure 3 There are two fixing components 400, one of which is fixed to the second frame 220, and the other is rotatably and adjustablely mounted on the second frame 220.

[0044] Understandably, the arrangement of the two fixing components 400 is suitable for fixing bent pipe-like workpieces with both ends.

[0045] With the above structure, the fixing component 400 fixed to the second frame 220 can serve as a reference point to ensure the fixing accuracy of the main body of the bent tube workpiece; the fixing component 400, which is rotatably adjustable on the second frame 220, can compensate for the dimensional error or installation deviation of the bent tube workpiece by adjusting the angle.

[0046] Another fixed component 400 is rotatably and adjustablely mounted on the second frame 220. For details, please refer to... Figure 3 The second frame 220 is equipped with a rotatable rotating block 221. The second frame 220 is threadedly connected with bolts, and the mounting sleeve 420 of the fixing component 400 passes through the rotating block 221. The rotating block 221 can rotate relative to the second frame 220, causing the fixing component 400 on it to rotate by a preset angle. The bolts can rotate to press against the rotating block 221, fixing the fixing component 400 on it at the preset angle. The axis of rotation of the rotating block 221 relative to the second frame 220 is a third axis L3, which is parallel to the first axis L1.

[0047] This utility model also proposes a polishing machine, which includes the above-mentioned workpiece fixture mechanism.

[0048] With the above structure, the linear displacement of the dual-axis rotation combined with the moving mechanism can be adjusted in various ways to change the contact posture between the workpiece and the polishing components (such as sanding belts, polishing wheels, etc.), so as to ensure uniform polishing pressure distribution and significantly improve the consistency of workpiece surface finish.

[0049] In this embodiment, the polishing machine includes a polishing mechanism, which has three polishing wheels of different sizes. The workpiece is described as a bent pipe, and references are made to... Figure 2Large polishing wheels can polish and grind the surface of workpieces, small polishing wheels can move to the inside of workpieces to polish their inner surfaces, and medium polishing wheels can perform waxing on workpieces.

[0050] In some embodiments, the polishing mechanism is provided with four polishing wheels of different sizes.

[0051] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A workpiece fixture mechanism, characterized in that: The assembly includes a frame (100), a first frame (210), a second frame (220), a first drive member (310), a second drive member (320), and a fixing component (400). The first drive member (310) is disposed on the frame (100), the first frame (210) is rotatably disposed on the frame (100) and connected to the first drive member (310), and the first drive member (310) can drive the first frame (210) to rotate around a first axis (L1). The second drive member (320) is disposed on the first frame (210), the second frame (220) is rotatably disposed on the first frame (210) and connected to the second drive member (320), and the second drive member (320) can drive the second frame (220) to rotate around a second axis (L2). The fixing component (400) is disposed on the second frame (220) and located between the second frame (220) and the first axis (L1), and the fixing component (400) is used to fix the workpiece.

2. The workpiece fixture mechanism according to claim 1, characterized in that: The first axis (L1) and the second axis (L2) are set perpendicularly.

3. The workpiece fixture mechanism according to claim 2, characterized in that: The first frame (210) includes a first arm (211) and a second arm (212). One end of the first arm (211) is rotatably disposed on the frame (100) and connected to the first drive member (310), and the other end is fixedly connected to one end of the second arm (212). The second drive member (320) is disposed on the first arm (211) or the second arm (212), and the second frame (220) is rotatably disposed on the other end of the second arm (212).

4. The workpiece fixture mechanism according to claim 3, characterized in that: The first frame (210) has an L-shaped structure.

5. A workpiece fixture mechanism according to claim 2, characterized in that: The first axis (L1) is set in the vertical direction, and the second axis (L2) is set in the horizontal direction.

6. The workpiece fixture mechanism according to claim 1, characterized in that: The fixing assembly (400) includes a third driving member (410), a mounting cylinder (420), an expansion tube (430), and a push rod (440). The third driving member (410) is disposed on the second frame (220). One end of the mounting cylinder (420) is disposed on the third driving member (410). The expansion tube (430) passes through the other end of the mounting cylinder (420). The push rod (440) passes through the mounting cylinder (420). The expansion tube (430) is provided at the end of the mounting tube (420) located outside the mounting tube (420) for at least two expansion portions (431) for fitting the workpiece. The push rod (440) is connected to the third drive member (410). The third drive member (410) can drive the push rod (440) to move and push the expansion portions (431) so that at least two expansion portions (431) can expand and press against the workpiece fixed thereon.

7. A workpiece fixture mechanism according to claim 1 or 6, characterized in that: Two fixing components (400) are provided, one of which is fixed to the second frame (220), and the other is rotatably and adjustablely disposed on the second frame (220).

8. A polishing machine, characterized in that: Includes a workpiece fixture mechanism as described in any one of claims 1-7.

9. The polishing machine according to claim 8, characterized in that: It includes a polishing mechanism, which has at least two polishing wheels of different sizes.

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