Spherical workpiece fixing structure

Abstract

The utility model relates to the technical field of spherical workpieces, and discloses a spherical workpiece fixing structure which comprises a base, a machining base is fixedly installed in the center of the top of the base, a vertical plate is rotationally connected to one side of the base, a top plate is fixedly connected to one side of the top of the vertical plate, and the top of the top plate is in threaded connection with a threaded top plate. According to the spherical workpiece fixing structure, through the design of clamping a workpiece, firstly, the bottom pressing plate is located above the bottom of the workpiece, the inserting rod always pushes the bottom pressing plate to move downwards along with the elastic potential energy of the inserting rod, namely, the bottom pressing plate tightly abuts against the bottom of the workpiece, and fixing of the bottom of the workpiece is achieved; the position of the fixing column is adjusted by rotating the threaded rod, the clamp is fixed to the side face of a workpiece, then the clamp is further adjusted carefully by rotating the threaded rod, pressure can be better provided for the side face of the workpiece conveniently, and clamping of the workpiece is more stably achieved under the condition that the surface of the workpiece is not damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of spherical workpieces, in particular to a fixing structure for spherical workpieces. Background Technique

[0002] A lathe is a machine tool mainly used for turning a rotating workpiece with a turning tool. Drills, reamers, broaches, taps, dies, knurling tools, etc. can also be used for corresponding processing on the lathe. Lathes are mainly used for processing shafts, discs, sleeves and other workpieces with rotating surfaces, and are the most widely used type of machine tool in machinery manufacturing and repair factories.

[0003] During industrial processing, when processing hemispherical or spherical workpieces, such workpieces often have a large eccentric mass, are difficult to clamp during processing, have poor clamping stability, and are prone to chatter during processing, making it difficult for the processed valve body workpieces to meet a series of quality requirements such as roughness and geometric tolerances, bringing difficulties to processing. Therefore, clamping is required through a fixture. However, general fixtures have poor stability during clamping, easily causing the workpiece to slide, resulting in processing deviations. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a fixing structure for spherical workpieces, which has the advantages of stable clamping, etc., and solves the above problems.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: A fixing structure for spherical workpieces, including a base, a processing seat is fixedly installed at the center of the top of the base, a vertical plate is rotatably connected to one side of the base, a top plate is fixedly connected to one side of the top of the vertical plate, a threaded top plate is threadedly connected to the top of the top plate, and a number of clamping workpieces are arranged on the top of the base.

[0008] Preferably, the clamping workpiece includes a guide rail, a threaded rod is rotatably connected inside the guide rail, two moving seats are threadedly connected to the outer wall of the threaded rod, a bottom pressing plate is arranged on the top of one of the moving seats, a column is arranged on the top of the other moving seat, a connecting seat is fixedly connected to the top of the column, a sliding rod is slidably connected inside the connecting seat, a threaded column is threadedly connected through the top of the column, and a fixture is arranged on the other side of the threaded column.

[0009] Through the above solution: With the design of clamping the workpiece, first place the bottom pressing plate above the bottom of the workpiece. As the elastic potential energy of the insertion rod causes the insertion rod to always push the bottom pressing plate downward, the bottom pressing plate is tightly abutted against the bottom of the workpiece, realizing the fixation of the bottom of the workpiece. By rotating the threaded rod, the position of the fixed column is adjusted, realizing the fixation of the side of the fixture and the workpiece. Then, by rotating the threaded column, the fixture is further finely adjusted to facilitate providing pressure to the side of the workpiece better, and clamping the workpiece more stably without damaging the surface of the workpiece.

[0010] Preferably, a fixed rod is fixedly connected to the top of one of the moving seats. The outer wall of the fixed rod is slidably connected with a bottom pressing plate. The top of the bottom pressing plate is fixedly connected with an insertion rod, and the top of the insertion rod is fixedly connected with a top cover.

[0011] Through the above solution: Due to the elastic potential energy of the insertion rod, the insertion rod can always push the bottom pressing plate downward, thereby ensuring that the bottom pressing plate stably clamps the bottom of the workpiece.

[0012] Preferably, rotating grooves are formed on both sides of the fixture. A fixed column is fixedly installed inside the rotating groove. One end of a coil spring is fixedly connected to the outer wall of the fixed column, and the other end of the coil spring is fixedly connected to a rotating sleeve. The outer wall of the rotating sleeve is fixedly connected with a side plate.

[0013] Through the above solution: With the design of the side plate, the side of the workpiece can be clamped in an encircling manner, increasing the contact area with the workpiece. This can not only further improve the clamping stability of the workpiece but also reduce damage to the surface of the workpiece. At the same time, due to the rotatability of the side plate, when the side plate contacts the workpiece, the contact is more stable, the contact surface is more sufficient, and it has good adjustability to facilitate adapting to different spherical workpiece types.

[0014] Preferably, a rotating seat is fixedly connected to one side of the fixture. The inner wall of the rotating seat is rotatably connected to one end of a threaded column. The other end of the threaded column is fixedly installed with a turntable. The threaded column and the sliding rod are on the same vertical horizontal line.

[0015] Through the above solution: By rotating the turntable, the position of the threaded column inside the fixed column can be understood, thereby adjusting the position of the fixture, and further finely adjusting the fixture to ensure the clamping stability of the workpiece.

[0016] Preferably, the side plate is rotatably connected to the fixed column through a rotating sleeve. The cross-sectional shape of the side plate is arc-shaped, and the material of the side plate is soft rubber.

[0017] Through the above solution, when the side plate contacts the workpiece, the contact is more stable, the contact surface is more sufficient, and it has good adjustability to adapt to different types of spherical workpieces.

[0018] Preferably, the number of the clamping workpieces is four. The four clamping workpieces are evenly arranged in an array on the outer side of the processing seat to form a ring and are located directly below the threaded top plate.

[0019] Through the above solution, an encircling clamping method is adopted to achieve all-round clamping of the workpiece and ensure the stability of the workpiece.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the present utility model provides a fixing structure for spherical workpieces, which has the following

[0022] beneficial effects:

[0023] 1. For the fixing structure of spherical workpieces, through the design of the clamping workpiece, first place the bottom pressing plate above the bottom of the workpiece. As the elastic potential energy of the insertion rod makes the insertion rod always push the bottom pressing plate downward, the bottom pressing plate tightly abuts against the bottom of the workpiece, realizing the fixation of the bottom of the workpiece. By rotating the threaded rod, the position of the fixing column is adjusted to realize the fixation of the side of the fixture and the workpiece. Then, by rotating the threaded column, the fixture is further finely adjusted to more conveniently provide pressure on the side of the workpiece, and the workpiece is clamped more stably without damaging the surface of the workpiece.

[0024] 2. For the fixing structure of spherical workpieces, through the design of the side plate, an encircling clamping of the side of the workpiece can be realized, increasing the contact area with the workpiece. It can not only further improve the clamping stability of the workpiece, but also reduce the damage to the surface of the workpiece. At the same time, due to the rotatability of the side plate, when the side plate contacts the workpiece, the contact is more stable, the contact surface is more sufficient, and it has good adjustability to adapt to different types of spherical workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the present utility model;

[0026] Figure 2 is a front view of the structure of the present utility model;

[0027] Figure 3 is a schematic diagram of the column of the present utility model;

[0028] Figure 4 is a schematic diagram of the fixture of the present utility model.

[0029] In the figure: 1, base; 2, machining seat; 3, vertical plate; 4, top plate; 5, threaded top plate; 6, clamping workpiece; 61, guide rail; 62, threaded rod; 63, moving seat; 64, bottom pressing plate; 65, inserting rod; 66, top cover; 67, column; 68, connecting seat; 69, sliding rod; 610, threaded column; 611, fixture; 612, rotating groove; 613, fixed column; 614, coil spring; 615, rotating sleeve; 616, side plate. Specific embodiments

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the protection scope of the present invention.

[0031] Please refer to Figure 1-2 , a spherical workpiece fixing structure, including a base 1, a machining seat 2 is fixedly installed at the center of the top of the base 1, a vertical plate 3 is rotatably connected to one side of the base 1, a top plate 4 is fixedly connected to one side of the top of the vertical plate 3, a threaded top plate 5 is threadedly connected to the top of the top plate 4, and a plurality of clamping workpieces 6 are arranged on the top of the base 1.

[0032] Among them:

[0033] The number of the clamping workpieces 6 is four, and the four clamping workpieces 6 are evenly arranged in an array outside the machining seat 2 to form a ring and are located directly below the threaded top plate 5.

[0034] Specifically, an encircling clamping method is adopted to realize the all-round clamping of the workpiece and ensure the stability of the workpiece.

[0035] During the use process, by placing the workpiece above the machining seat 2, the bottom and side encircling clamping of the workpiece is realized through the four clamping workpieces 6, and the clamping of the workpiece above is realized through the threaded top plate 5.

[0036] According to Figure 3 As shown, the clamping workpiece 6 includes a guide rail 61, a threaded rod 62 is rotatably connected inside the guide rail 61, two moving seats 63 are threadedly connected to the outer wall of the threaded rod 62, a bottom pressing plate 64 is arranged on the top of one of the moving seats 63, a column 67 is arranged on the top of the other moving seat 63, a connecting seat 68 is fixedly connected to the top of the column 67, a sliding rod 69 is slidably connected inside the connecting seat 68, a threaded column 610 is threadedly connected through the top of the column 67, and a fixture 611 is arranged on the other side of the threaded column 610.

[0037] Among them:

[0038] A fixing rod is fixedly connected to the top of one of the moving seats 63. The outer wall of the fixing rod is slidably connected with a bottom pressing plate 64. A plug rod 65 is fixedly connected to the top of the bottom pressing plate 64. A top cover 66 is fixedly connected to the top of the plug rod 65. A rotating seat is fixedly connected to one side of the fixture 611. The inner wall of the rotating seat is rotatably connected to one end of a threaded column 610. The other end of the threaded column 610 is fixedly installed with a turntable. The threaded column 610 and the sliding rod 69 are on the same vertical horizontal line.

[0039] Specifically, through the elastic potential energy of the plug rod 65, the plug rod 65 can always push the bottom pressing plate 64 downward, so as to ensure that the bottom pressing plate 64 stably clamps the bottom of the workpiece. By rotating the turntable, the position of the threaded column 610 inside the column 67 can be understood, so that the position of the fixture 611 can be adjusted, and further fine-tuning of the fixture 611 can be realized to ensure the clamping stability of the workpiece.

[0040] During the use process, the position of the moving seat 63 is adjusted by rotating the threaded rod 62, that is, the position of the bottom pressing plate 64 can be adjusted. When the bottom pressing plate 64 is above the bottom of the workpiece, stop rotating the threaded rod 62. At this time, because the bottom pressing plate 64 is always subjected to the thrust of the plug rod 65, when the bottom pressing plate 64 is above the bottom of the workpiece, it can always provide pressure on the top of the bottom of the workpiece to ensure the clamping of the workpiece.

[0041] According to Figure 4 As shown, rotating grooves 612 are formed on both sides of the fixture 611. A fixing column 613 is fixedly installed inside the rotating grooves 612. One end of a coil spring 614 is fixedly connected to the outer wall of the fixing column 613. The other end of the coil spring 614 is fixedly connected to a rotating sleeve 615. A side plate 616 is fixedly connected to the outer wall of the rotating sleeve 615.

[0042] Wherein:

[0043] The side plate 616 is rotatably connected to the fixing column 613 through the rotating sleeve 615. The cross-sectional shape of the side plate 616 is arc-shaped, and the material of the side plate 616 is soft rubber.

[0044] Specifically, when the side plate 616 contacts the workpiece, the contact is more stable, the contact surface is more sufficient, and it has good adjustability to facilitate adapting to different types of spherical workpieces.

[0045] During use, the side plate 616 rotates on the outer wall of the fixed column 613 through the rotating sleeve 615. And because the rotating sleeve 615 is rotationally connected to the fixed column 613 through the torsion spring 614, due to the elastic potential energy of the torsion spring 614, the side plate 616 always rotates towards the inside, that is, it can always rotate towards the workpiece, so it can further apply pressure to the side of the workpiece, thus better ensuring the clamping of the workpiece.

[0046] During use, by placing the workpiece above the processing seat 2, the bottom and side of the workpiece are clamped in a surrounding manner by the four clamping workpieces 6, the top of the workpiece is clamped by the threaded top plate 5, and the position of the moving seat 63 is adjusted by rotating the threaded rod 62, that is, the position of the bottom pressing plate 64 can be adjusted. When the bottom pressing plate 64 is located above the bottom of the workpiece, stop rotating the threaded rod 62. At this time, because the bottom pressing plate 64 is always pushed by the plug rod 65, when the bottom pressing plate 64 is located above the bottom of the workpiece, it can always provide pressure above the bottom of the workpiece to ensure the clamping of the workpiece. The side plate 616 rotates on the outer wall of the fixed column 613 through the rotating sleeve 615. And because the rotating sleeve 615 is rotationally connected to the fixed column 613 through the torsion spring 614, due to the elastic potential energy of the torsion spring 614, the side plate 616 always rotates towards the inside, that is, it can always rotate towards the workpiece, so it can further apply pressure to the side of the workpiece, thus better ensuring the clamping of the workpiece.

[0047] In summary, for this spherical workpiece fixing structure, through the design of the clamping workpiece 6, first place the bottom pressing plate 64 above the bottom of the workpiece. As the elastic potential energy of the plug rod 65 makes the plug rod 65 always push the bottom pressing plate 64 downward, that is, the bottom pressing plate 64 closely abuts against the bottom of the workpiece to fix the bottom of the workpiece. The position of the upright column 67 is adjusted by rotating the threaded rod 62 to fix the fixture 611 to the side of the workpiece. Then, by rotating the threaded column 610, the fixture 611 is further finely adjusted to more conveniently provide pressure to the side of the workpiece, and the workpiece can be clamped more stably without damaging the surface of the workpiece. Through the design of the side plate 616, the surrounding clamping of the side of the workpiece can be realized, increasing the contact area with the workpiece. It can not only further improve the clamping stability of the workpiece, but also reduce the damage to the surface of the workpiece. At the same time, due to the rotatability of the side plate 616, when the side plate 616 contacts the workpiece, the contact is more stable and the contact surface is more sufficient, and it has good adjustability to facilitate adapting to different types of spherical workpieces.

[0048] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A spherical workpiece fixing structure, comprising a base (1), characterized in that: A processing seat (2) is fixedly mounted at the top center of the base (1); a vertical plate (3) is rotatably connected to one side of the base (1); a top plate (4) is fixedly connected to one side of the top of the vertical plate (3); a threaded top plate (5) is threadedly connected to the top of the top plate (4); and a plurality of clamping workpieces (6) are arranged on the top of the base (1).

2. A spherical workpiece fixing structure according to claim 1, characterized in that: The clamping workpiece (6) includes a guide rail (61), the interior of the guide rail (61) is rotatably connected to a threaded rod (62), the outer wall of the threaded rod (62) is threadedly connected to two movable seats (63), the top of one of the movable seats (63) is provided with a bottom pressure plate (64), the top of the other movable seat (63) is provided with a column (67), the top of the column (67) is fixedly connected to a connecting seat (68), the interior of the connecting seat (68) is slidably connected to a sliding rod (69), the top of the column (67) is threadedly connected to a threaded column (610), and the other side of the threaded column (610) is provided with a clamp (611).

3. A spherical workpiece fixing structure according to claim 2, characterized in that: The top of one of the movable seats (63) is fixedly connected to a fixing rod, the outer wall of the fixing rod is slidably connected to a bottom pressing plate (64), the top of the bottom pressing plate (64) is fixedly connected to an insertion rod (65), and the top of the insertion rod (65) is fixedly connected to a top cover (66).

4. A spherical workpiece fixing structure according to claim 2, characterized in that: The clamp (611) is provided with a rotation groove (612) on both sides, and a fixed column (613) is fixedly installed inside the rotation groove (612). The outer wall of the fixed column (613) is fixedly connected to one end of a coil spring (614), and the other end of the coil spring (614) is fixedly connected to a rotation sleeve (615), and the outer wall of the rotation sleeve (615) is fixedly connected to a side plate (616).

5. A spherical workpiece fixing structure according to claim 4, characterized in that: One side of the clamp (611) is fixedly connected to a rotating seat, the inner wall of the rotating seat is rotatably connected to one end of a threaded column (610), and a turntable is fixedly installed on the other end of the threaded column (610). The threaded column (610) and the sliding rod (69) are located on the same vertical horizontal line.

6. A spherical workpiece fixing structure according to claim 4, characterized in that: The side plate (616) is rotatably connected to the fixed column (613) via a rotating sleeve (615); the cross-sectional shape of the side plate (616) is arc-shaped, and the material of the side plate (616) is soft rubber.

7. The spherical workpiece fixing structure according to claim 1, characterized in that: The number of the clamping workpieces (6) is four, and the four clamping workpieces (6) are evenly arrayed on the outside of the processing seat (2) to form a ring and are located directly below the threaded top plate (5).

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