Workpiece locking clamp based on polishing machine

Abstract

The utility model discloses a workpiece locking fixture based on a polishing machine, which relates to the technical field of workpiece locking fixtures and comprises a flange plate, a plurality of fixing holes are annularly formed in the flange plate at equal intervals, a connecting cylinder is fixedly connected to one side of the flange plate, the other side of the connecting cylinder is fixedly connected to one side of a fixing cylinder, and protective cylinders are fixedly connected to two ends of the fixing cylinder. Clamping mechanisms are mounted on the inner sides of the protective cylinders, a positioning cylinder is fixedly connected to the inner side of the fixed cylinder, positioning openings are formed in the two sides and the middle of the positioning cylinder, and a cavity structure is formed between the positioning cylinder and the fixed cylinder; the bidirectional lead screw and the L-shaped positioning rod are matched with each other, so that a workpiece is conveniently clamped and polished, the workpiece clamping stability is improved, the workpiece clamping anti-falling function is further achieved, the worm and the micro motor are matched with each other, the workpiece is conveniently clamped and locked, the locking and fixing efficiency of the clamp is improved, and the working efficiency of the clamp is improved. And therefore, the function of clamping and locking the workpiece is achieved, and the problems that the workpiece is difficult to clamp and cannot be automatically locked are finally solved.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece locking fixtures, in particular to a workpiece locking fixture for a polishing machine. Background Art

[0002] The earliest locking fixtures mainly relied on manual adjustment and locking by the operator, using simple mechanical structures such as bolts and snaps. This method was inefficient, and the positioning accuracy depended on the operator's experience and skills. With the advancement of industrialization, mechanical locking structures began to be widely used. For example, clamping devices using the principle of leverage can provide a more stable locking force, but still require a lot of manual operation. The workpiece locking fixture for polishing machines consists of a fixture body, a locking device, a positioning device and a clamping mechanism. However, during use, an existing workpiece locking fixture based on a polishing machine is difficult to clamp the workpiece and cannot be automatically locked. Therefore, the above technical problems need to be solved. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a workpiece locking fixture for a polishing machine.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a workpiece locking fixture for a polishing machine, comprising a flange, a plurality of fixing holes are equidistantly provided in a ring shape on the flange, and a connecting tube is fixedly connected to one side of the flange, and the other side of the connecting tube is fixedly connected to one side of the fixed tube, protective tubes are fixedly connected to both ends of the fixed tube, a clamping mechanism is installed on the inner side of the protective tube, a positioning tube is fixedly connected to the inner side of the fixed tube, positioning openings are provided on both sides and the middle of the positioning tube, and a cavity structure is provided between the positioning tube and the fixed tube.

[0005] Preferably, an internal and external gear ring is installed inside the protective cylinder, and the internal and external gear ring is movably engaged with the fixed cylinder, and first gears are equidistantly provided in an annular manner inside the internal and external gear ring.

[0006] Preferably, the clamping mechanism includes a first gear, a connecting plate, a limiting rod and an arc-shaped positioning block. The lower end of the first gear is movably connected to the connecting plate. The middle part of the connecting plate is hinged to the hinged rod, and one end of the connecting plate is hinged to the arc-shaped positioning block. The limiting rods are equidistantly fixed on both sides of the hinged rod.

[0007] Preferably, a workpiece positioning mechanism is installed in the middle of the fixed cylinder, and a connection box is fixedly connected to one side of the fixed cylinder, and a locking structure is installed on the inner side of the connection box.

[0008] Preferably, the workpiece positioning mechanism includes an L-shaped positioning rod, a bidirectional screw and a fixed rod, the L-shaped positioning rod is vertically penetrated by a bidirectional screw, one end of the bidirectional screw is fixed with a knob, and the other end of the L-shaped positioning rod is fixed with an arc-shaped fixed plate.

[0009] Preferably, the locking structure includes a worm, a second gear, a connecting rod and a micro motor. The second gears are installed on the inner side of the connecting box outside the internal and external tooth gear rings on both sides, and the second gears are connected and fixed by a connecting rod. A worm is fixed to the middle of one side of the second gear, and a worm wheel is installed on one side of the worm.

[0010] Preferably, a micro motor is connected to the lower end of one side of the connection box via bolts, and a drive shaft of the micro motor is clamped in the middle of one side of the worm gear.

[0011] Compared with the prior art, the beneficial effects of the present invention are: in the present invention, the bidirectional lead screw and the L-shaped positioning rod cooperate with each other, which facilitates clamping and grinding the workpiece, improves the stability of the workpiece clamping, and thus realizes the function of clamping and preventing the workpiece from falling off, and then the worm and the micro motor cooperate with each other, which facilitates the clamping and locking of the workpiece, improves the efficiency of the fixture locking and fixing, and thus realizes the function of clamping and locking the workpiece, and finally solves the problem that the workpiece is difficult to clamp and cannot be automatically locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed by the utility model;

[0014] Figure 2 This is a schematic diagram of the overall three-dimensional structure proposed by the utility model when viewed from above;

[0015] Figure 3 This is a schematic diagram of the side cross-sectional structure proposed by the utility model;

[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of the other end as viewed from the side of the present invention;

[0017] Figure 5 This is a schematic diagram of the partial and overall three-dimensional structure proposed by the utility model.

[0018] Serial numbers in the figure: 1. Flange; 2. Fixing hole; 3. Connecting tube; 4. Protective tube; 5. Fixing tube; 6. Connecting box; 7. L-shaped positioning rod; 8. Bidirectional screw; 10. Arc-shaped positioning block; 11. First gear; 12. Connecting plate; 13. Limiting rod; 14. Worm; 15. Fixing rod; 16. Second gear; 17. Micro motor; 18. Internal and external gear ring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Example: See Figure 1-5 The utility model is a workpiece locking fixture for a polishing machine, comprising a flange 1, a plurality of fixing holes 2 are equidistantly provided in a ring on the flange 1, and a connecting tube 3 is fixedly connected to one side of the flange 1, and the other side of the connecting tube 3 is fixedly connected to one side of the fixing tube 5, both ends of the fixing tube 5 are fixedly connected to a protective tube 4, a clamping mechanism is installed on the inner side of the protective tube 4, a positioning tube is fixedly connected to the inner side of the fixing tube 5, positioning ports are provided on both sides and the middle of the positioning tube, and a cavity structure is provided between the positioning tube and the fixing tube 5, which facilitates the fixture to be fixed on the machine tool through the flange 1 and the fixing holes 2; an internal and external gear ring 18 is installed on the inner side of the protective tube 4, and an internal and external gear ring 18 are movably connected to the fixed cylinder 5, and the first gear 11 is equidistantly provided in an annular shape on the inner side of the internal and external gear ring 18. The internal and external gear ring 18 are connected to the fixed cylinder 5 to facilitate clamping the workpiece; the clamping mechanism includes a first gear 11, a connecting plate 12, a limiting rod 13 and an arc-shaped positioning block 10. The lower end of the first gear 11 is movably connected to the connecting plate 12, the middle part of the connecting plate 12 is hinged to the hinge rod, and one end of the connecting plate 12 is hinged to the arc-shaped positioning block 10. The limiting rods 13 are equidistantly fixed on both sides of the hinge rod. The connecting plate 12 between the first gear 11 and the arc-shaped positioning block 10 facilitates clamping the outer wall of the workpiece.

[0021] In the present invention, a workpiece positioning mechanism is installed in the middle of the fixed cylinder 5, and a connecting box 6 is fixedly connected to one side of the fixed cylinder 5, and a locking structure is installed on the inner side of the connecting box 6, which facilitates the workpiece locking function through the fixed cylinder 5 and the connecting box 6; the workpiece positioning mechanism includes an L-shaped positioning rod 7, a two-way screw 8 and a fixed rod 15, the L-shaped positioning rod 7 vertically penetrates and is clamped with a two-way screw 8, one end of the two-way screw 8 is fixedly connected to a knob, and the other end of the L-shaped positioning rod 7 is fixedly connected to an arc fixing plate, through the two-way screw 8 and the L-shaped positioning rod 7, it is convenient to further improve the firmness of the workpiece clamping; the locking structure includes There are a worm 14, a second gear 16, a connecting rod and a micro motor 17. The second gear 16 is installed on the inner side of the connecting box 6 outside the internal and external tooth gear rings 18 on both sides, and the second gears 16 are connected and fixed by connecting rods. The worm 14 is fixed to the middle part of one side of the second gear 16, and a worm wheel is installed on one side of the worm 14. The second gear 16 and the connecting rod are used to facilitate the automatic clamping of the workpiece by the fixture; the lower end of one side of the connecting box 6 is connected to the micro motor 17 by bolts, and the drive shaft of the micro motor 17 is clamped in the middle part of one side of the worm wheel. Through the micro motor 17 and the worm wheel, the function of clamping and locking the workpiece is realized.

[0022] Working principle: When the present invention is used, the flange 1 and the fixing hole 2 are used to fix the fixture on the machine tool, and then the connecting tube 3 and the fixing tube 5 are used to place the workpiece in the tube, and then the protective tube 4 and the connecting box 6 are used to prevent the gear transmission mechanism from being damaged, and then the L-shaped positioning rod 7 and the bidirectional screw 8 on the fixing rod 15 are used to clamp the arc-shaped fixing plate on both sides of the workpiece, and then the second gear 16 on both sides of the connecting rod rotates to drive the internal and external gear rings 18 to rotate, so that the first gear 11 rotates accordingly, so that the arc-shaped positioning block 10 on the connecting plate 12 is further clamped on both sides of the workpiece, and then the clamping stroke is fixed by the limit rod 13, and then the worm gear and the micro motor 17 and the worm 14 are used to realize the function of clamping and locking the workpiece.

[0023] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A workpiece locking fixture for a polishing machine, comprising a flange (1), characterized in that: The flange (1) is provided with a plurality of fixing holes (2) at equal intervals in a ring shape, and a connecting tube (3) is fixedly connected to one side of the flange (1), and the other side of the connecting tube (3) is fixedly connected to one side of the fixing tube (5). Both ends of the fixing tube (5) are fixedly connected to protective tubes (4), and a clamping mechanism is installed on the inner side of the protective tube (4). A positioning tube is fixedly connected to the inner side of the fixing tube (5), and positioning openings are provided on both sides and the middle of the positioning tube, and a cavity structure is provided between the positioning tube and the fixing tube (5).

2. The workpiece locking fixture for a polishing machine according to claim 1, characterized in that: An internal and external gear ring (18) is installed inside the protective cylinder (4), and the internal and external gear ring (18) is movably engaged with the fixed cylinder (5), and a first gear (11) is equidistantly provided in an annular manner inside the internal and external gear ring (18).

3. The workpiece locking fixture for a polishing machine according to claim 1, characterized in that: The clamping mechanism comprises a first gear (11), a connecting plate (12), a limiting rod (13) and an arc-shaped positioning block (10); the lower end of the first gear (11) is movably connected to the connecting plate (12); the middle part of the connecting plate (12) is hinged to the hinge rod, and one end of the connecting plate (12) is hinged to the arc-shaped positioning block (10); and the limiting rods (13) are fixedly connected to both sides of the hinge rod at equal distances.

4. The workpiece locking fixture for a polishing machine according to claim 1, characterized in that: A workpiece positioning mechanism is installed in the middle of the fixed cylinder (5), and a connection box (6) is fixedly connected to one side of the fixed cylinder (5), and a locking structure is installed on the inner side of the connection box (6).

5. The workpiece locking fixture for a polishing machine according to claim 4, characterized in that: The workpiece positioning mechanism comprises an L-shaped positioning rod (7), a bidirectional lead screw (8) and a fixing rod (15); the L-shaped positioning rod (7) vertically penetrates and is clamped with the bidirectional lead screw (8); one end of the bidirectional lead screw (8) is fixedly connected to a knob; the other end of the L-shaped positioning rod (7) is fixedly connected to an arc-shaped fixing plate.

6. The workpiece locking fixture for a polishing machine according to claim 4, characterized in that: The locking structure includes a worm (14), a second gear (16), a connecting rod and a micro motor (17). The second gear (16) is installed on the inner side of the connecting box (6) outside the internal and external gear rings (18) on both sides, and the second gears (16) are connected and fixed by the connecting rod. A worm (14) is fixed to the middle part of one side of the second gear (16), and a worm wheel is installed on one side of the worm (14).

7. The workpiece locking fixture for a polishing machine according to claim 5, characterized in that: The lower end of one side of the connection box (6) is connected to a micro motor (17) via a bolt, and the drive shaft of the micro motor (17) is clamped in the middle of one side of the worm gear.

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