Fixing mechanical clamp for machining

Abstract

The utility model relates to the technical field of clamps, in particular to a fixed mechanical clamp for machining, which comprises a positioning table, and a first positioning component for positioning a cuboid workpiece is arranged on the upper surface of the positioning table; the first positioning assembly comprises a rectangular groove formed in the upper surface of the positioning table and a bidirectional lead screw rotationally arranged on the inner wall of the rectangular groove, and further comprises two symmetrical moving blocks arranged on the inner wall of the rectangular groove in a sliding mode and first positioning plates fixedly arranged on the upper surfaces of the two moving blocks correspondingly. And threads which are in threaded connection with the outer surface of the two-way lead screw are formed in the surfaces of the two moving blocks. According to the fixture, the first positioning assembly and the second positioning assembly are arranged, so that when the fixture is used for positioning a cuboid-shaped workpiece, the center position of the workpiece can be just positioned in the center of the positioning table; the defect that in the prior art, an irregular cuboid workpiece cannot be positioned in the center position of a positioning table is effectively overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a fixed mechanical clamp for mechanical processing. Background Art

[0002] During the machining process, mechanical fixtures are needed to effectively position the workpiece.

[0003] In the prior art, a fixed mechanical fixture for mechanical processing with publication number CN219189337U adopts a scheme of "including a bottom mounting box, a positioning table is fixedly mounted on the upper surface of the bottom mounting box, and the upper surface of the positioning table is provided with four strip grooves in a circular array, the inner walls of the two longitudinal strip grooves are rotatably connected with a bidirectional lead screw, the inner walls of the two transverse strip grooves are rotatably connected with a threaded column, a cylindrical cavity is provided inside the positioning table, and the ends of the two threaded columns extend to the inside of the cylindrical cavity". In actual use, this scheme can drive the bidirectional lead screw to rotate by the rotation of the driving motor, and the rotation of the bidirectional lead screw drives the threaded column to rotate through the first bevel gear and the second bevel gear, so that the two first sliding blocks on the bidirectional lead screw and the second sliding blocks on the two threaded columns move toward the middle at the same time, so that the four positioning plates can effectively and automatically fix the workpiece at the center position of the positioning table, which brings great convenience to the processing work.

[0004] However, the above scheme still has some shortcomings. For example, in the actual process of positioning the workpiece, it can only position regular workpieces such as spherical workpieces or cubic workpieces at the center position. When the workpiece is an irregular rectangular block, the two first sliders and the two second sliders move simultaneously, resulting in the position of the rectangular workpiece cannot be changed when the two long ends of the rectangular workpiece are clamped, resulting in the center position of the rectangular workpiece being difficult to coincide with the center of the positioning table. That is, the technical solution proposed by the above patent technology cannot position the irregular rectangular workpiece at the center position of the positioning table.

[0005] In view of this, the utility model proposes a fixed mechanical fixture for mechanical processing. Utility Model Content

[0006] The purpose of the utility model is to provide a fixed mechanical fixture for mechanical processing, which has the advantage of being able to effectively position workpieces of different shapes, so as to solve the defect proposed in the above background technology that an irregular rectangular workpiece cannot be positioned at the center of a positioning table.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A fixed mechanical fixture for machining includes a positioning table, the upper surface of which is provided with a first positioning component for positioning a rectangular parallelepiped workpiece;

[0009] The first positioning assembly includes a rectangular groove opened on the upper surface of the positioning platform, and a bidirectional lead screw rotatably arranged on the inner wall of the rectangular groove, one end of the bidirectional lead screw extends to the outer surface of the positioning platform and is fixedly provided with a rotating disk for rotating the bidirectional lead screw, the first positioning assembly also includes two symmetrical moving blocks slidably arranged on the inner wall of the rectangular groove, and first positioning plates respectively fixed on the upper surfaces of the two moving blocks, and the surfaces of the two moving blocks are provided with threaded holes threadedly connected to the outer surface of the bidirectional lead screw, the surface of the first positioning plate is provided with a concave groove, and the inner wall of the concave groove is rotatably provided with two rotating rollers for facilitating the movement of the workpiece position after the workpiece is clamped;

[0010] A second positioning assembly is also provided on the upper surface of the positioning platform, and the second positioning assembly includes two symmetrical second positioning plates slidably arranged on the upper surface of the positioning platform, and a rectangular cavity opened inside and passing through the positioning platform, and the inner wall of the rectangular cavity is provided with a dual-axis motor for driving the two second positioning plates to move toward each other simultaneously.

[0011] As a preferred technical solution, two symmetrical rectangular rods are slidably provided on the inner wall of the rectangular cavity, and an L-shaped connecting rod is fixedly provided on the top surface of the rectangular rod, and the second positioning plate is fixedly provided on the end of the L-shaped connecting rod.

[0012] As a preferred technical solution, the dual-axis motor is fixed at the center of the rectangular cavity, and both output ends of the dual-axis motor are fixed with threaded columns, and the thread directions of the two threaded columns are opposite.

[0013] As a preferred technical solution, the ends of the two rectangular rods are provided with cylindrical thread grooves which are respectively threadedly connected to the outer surfaces of the two threaded columns.

[0014] As a preferred technical solution, two symmetrical limit blocks are fixedly provided on the outer surface of the end of the rectangular rod, and the inner top wall and the inner bottom wall of the rectangular cavity are both provided with limit sliding grooves for the limit blocks to slide.

[0015] As a preferred technical solution, a collecting assembly for collecting debris generated when processing the workpiece is provided inside the positioning table.

[0016] As a preferred technical solution, the collection component includes a fan-shaped collection chamber symmetrically opened inside the positioning platform and corresponding to the rectangular groove, and the inner top wall of the fan-shaped collection chamber is provided with an air suction hole extending to the bottom of the rectangular groove, and the outer surface of the positioning platform is hinged with an arc door panel corresponding to the fan-shaped collection chamber for facilitating the cleaning of debris collected inside the fan-shaped collection chamber.

[0017] As a preferred technical solution, the collection assembly also includes a dust suction fan fixed on the lower surface of the positioning platform, and the suction end of the dust suction fan is provided with a suction pipe extending to the inside of the two fan-shaped collection chambers, and the end of the suction pipe is provided with a filter cover.

[0018] Beneficial Effects

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] 1. The utility model sets a first positioning component and a second positioning component so that when the fixture positions a rectangular workpiece, the center of the workpiece can be positioned exactly at the center of the positioning platform, thereby effectively solving the defect in the prior art that an irregular rectangular workpiece cannot be positioned at the center of the positioning platform.

[0021] 2. The utility model sets a collection component so that when the clamp is clamping the workpiece, it can start the dust suction fan to generate negative pressure inside the fan-shaped collection chamber, so that the debris and dust generated by the processing can enter the fan-shaped collection chamber through the suction hole for collection. When cleaning is needed, the arc door panel can be opened to clean the debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the side section structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the front section structure of the utility model;

[0026] Figure 4 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0027] In the figure: 1. positioning table; 2. first positioning component; 201. rectangular groove; 202. bidirectional lead screw; 203. rotating disk; 204. moving block; 205. first positioning plate; 206. rotating roller; 3. second positioning component; 301. second positioning plate; 302. rectangular cavity; 303. dual-axis motor; 304. rectangular rod; 305. L-shaped connecting rod; 306. threaded column; 307. cylindrical threaded groove; 308. limiting block; 4. collecting component; 401. fan-shaped collecting cavity; 402. suction hole; 403. arc-shaped door panel; 404. dust suction fan; 405. suction pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Embodiment 1

[0032] According to the attached Figure 1-4 As shown, the embodiment of the utility model provides a fixed mechanical fixture for machining, comprising a positioning table 1, the upper surface of which is provided with a first positioning component 2 for positioning a rectangular workpiece;

[0033] The first positioning assembly 2 includes a rectangular groove 201 provided on the upper surface of the positioning platform 1, and a bidirectional lead screw 202 rotatably provided on the inner wall of the rectangular groove 201, one end of the bidirectional lead screw 202 extends to the outer surface of the positioning platform 1 and is fixedly provided with a rotating disk 203 for rotating the bidirectional lead screw 202, the first positioning assembly 2 also includes two symmetrical moving blocks 204 slidably provided on the inner wall of the rectangular groove 201, and first positioning plates 205 respectively fixedly provided on the upper surfaces of the two moving blocks 204, and the surfaces of the two moving blocks 204 are provided with threaded holes threadedly connected to the outer surface of the bidirectional lead screw 202, the surface of the first positioning plate 205 is provided with a concave groove, and the inner wall of the concave groove is rotatably provided with two rotating rollers 206 for facilitating the movement of the workpiece position after the workpiece is clamped;

[0034] A second positioning assembly 3 is also provided on the upper surface of the positioning platform 1, and the second positioning assembly 3 includes two symmetrical second positioning plates 301 slidably provided on the upper surface of the positioning platform 1, and a rectangular cavity 302 opened inside the positioning platform 1 and passing through the positioning platform 1, and the inner wall of the rectangular cavity 302 is provided with a dual-axis motor 303 for driving the two second positioning plates 301 to move toward each other simultaneously.

[0035] Two symmetrical rectangular rods 304 are slidably disposed on the inner wall of the rectangular cavity 302 , and an L-shaped connecting rod 305 is fixedly disposed on the top surface of the rectangular rod 304 . The second positioning plate 301 is fixedly disposed on the end of the L-shaped connecting rod 305 .

[0036] The dual-axis motor 303 is fixedly disposed at the center of the rectangular cavity 302 , and threaded posts 306 are fixedly disposed at two output ends of the dual-axis motor 303 , and the thread directions of the two threaded posts 306 are opposite.

[0037] The ends of the two rectangular rods 304 are respectively provided with cylindrical thread grooves 307 which are threadedly connected to the outer surfaces of the two threaded columns 306 .

[0038] Two symmetrical limit blocks 308 are fixedly provided on the outer surface of the end of the rectangular rod 304 , and the inner top wall and the inner bottom wall of the rectangular cavity 302 are both provided with limit sliding grooves for the limit blocks 308 to slide.

[0039] In this embodiment, by setting the first positioning component 2 and the second positioning component 3, the clamp can position the rectangular workpiece by placing the workpiece on the positioning platform 1, rotating the rotating disk 203, and the rotation of the rotating disk 203 drives the bidirectional lead screw 202 to rotate, and the rotation of the bidirectional lead screw 202 drives the two moving blocks 204 to move toward the middle at the same time, thereby driving the two first positioning plates 205 to move toward the middle at the same time to clamp the two sides of the workpiece, and then starting the dual-axis motor 303, and the rotation of the dual-axis motor 303 drives the two threaded columns 306 to rotate, and the rotation of the two threaded columns 306 The two cylindrical thread grooves 307 drive the two rectangular rods 304 to move toward the middle at the same time, thereby driving the two second positioning plates 301 to move toward the middle at the same time. When a second positioning plate 301 contacts the surface of the workpiece, it can squeeze the workpiece under the action of the rotating roller 206 to move the position of the workpiece until the two second positioning plates 301 are tightly against the surface of the workpiece, and the dual-axis motor 303 is turned off. At this time, the center position of the workpiece is exactly located at the center of the positioning platform 1, thereby effectively solving the defect of the prior art that an irregular rectangular workpiece cannot be positioned at the center position of the positioning platform 1.

[0040] Embodiment 2

[0041] Based on Example 1, refer to Figure 1-4 , and different from the first embodiment,

[0042] A collecting assembly 4 for collecting debris generated when machining a workpiece is disposed inside the positioning table 1 .

[0043] The collecting component 4 includes a fan-shaped collecting chamber 401 symmetrically opened inside the positioning platform 1 and corresponding to the rectangular groove 201, and the inner top wall of the fan-shaped collecting chamber 401 is provided with an air suction hole 402 extending to the inner bottom of the rectangular groove 201, and the outer surface of the positioning platform 1 is hinged with an arc-shaped door panel 403 corresponding to the fan-shaped collecting chamber 401 for facilitating the cleaning of debris collected inside the fan-shaped collecting chamber 401.

[0044] The collecting assembly 4 also includes a dust suction fan 404 fixed on the lower surface of the positioning platform 1, and the suction end of the dust suction fan 404 is provided with a suction pipe 405 extending to the inside of the two fan-shaped collecting chambers 401, and the end of the suction pipe 405 is provided with a filter cover.

[0045] In this embodiment, by setting up the collection component 4, the dust suction fan 404 can be started during the clamping process of the workpiece to generate negative pressure inside the fan-shaped collection chamber 401, so that the debris and dust generated by the processing can enter the fan-shaped collection chamber 401 through the suction hole 402 for collection. Finally, when cleaning is needed, the arc door panel 403 can be opened to clean the debris.

[0046] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A fixed mechanical fixture for machining, comprising a positioning table (1), characterized in that: The upper surface of the positioning platform (1) is provided with a first positioning component (2) for positioning a rectangular parallelepiped workpiece; The first positioning assembly (2) comprises a rectangular groove (201) formed on the upper surface of the positioning platform (1), and a bidirectional lead screw (202) rotatably arranged on the inner wall of the rectangular groove (201), one end of the bidirectional lead screw (202) extending to the outer surface of the positioning platform (1) and fixedly provided with a rotating disk (203) for rotating the bidirectional lead screw (202), the first positioning assembly (2) further comprises two symmetrical moving blocks (204) slidably arranged on the inner wall of the rectangular groove (201), and a first positioning plate (205) respectively fixedly provided on the upper surfaces of the two moving blocks (204), and the surfaces of the two moving blocks (204) are both provided with threaded holes threadedly connected to the outer surface of the bidirectional lead screw (202), the surface of the first positioning plate (205) is provided with a concave groove, and the inner wall of the concave groove is rotatably provided with two rotating rollers (206) for facilitating the movement of the workpiece position after the workpiece is clamped; The upper surface of the positioning platform (1) is also provided with a second positioning assembly (3), and the second positioning assembly (3) comprises two symmetrical second positioning plates (301) slidably arranged on the upper surface of the positioning platform (1), and a rectangular cavity (302) opened inside the positioning platform (1) and penetrating the positioning platform (1), and the inner wall of the rectangular cavity (302) is provided with a dual-axis motor (303) for driving the two second positioning plates (301) to move toward each other simultaneously.

2. A mechanical fixture for machining according to claim 1, characterized in that: Two symmetrical rectangular rods (304) are slidably arranged on the inner wall of the rectangular cavity (302), and an L-shaped connecting rod (305) is fixedly arranged on the top surface of the rectangular rod (304), and the second positioning plate (301) is fixedly arranged on the end of the L-shaped connecting rod (305).

3. A mechanical fixture for machining according to claim 2, characterized in that: The dual-axis motor (303) is fixedly arranged at the center of the rectangular cavity (302), and threaded columns (306) are fixedly arranged at two output ends of the dual-axis motor (303), and the threaded directions of the two threaded columns (306) are opposite.

4. A mechanical fixture for machining according to claim 3, characterized in that: The ends of the two rectangular rods (304) are each provided with a columnar thread groove (307) which is threadably connected to the outer surfaces of the two threaded columns (306) respectively.

5. A mechanical fixture for machining according to claim 2, characterized in that: Two symmetrical limit blocks (308) are fixedly provided on the outer surface of the end of the rectangular rod (304), and the inner top wall and the inner bottom wall of the rectangular cavity (302) are both provided with limit sliding grooves for the limit blocks (308) to slide.

6. A mechanical fixture for machining according to claim 1, characterized in that: A collecting component (4) for collecting debris generated when machining a workpiece is arranged inside the positioning table (1).

7. A mechanical fixture for machining according to claim 6, characterized in that: The collecting assembly (4) comprises a fan-shaped collecting chamber (401) symmetrically arranged inside the positioning platform (1) and corresponding to the rectangular groove (201), and an air suction hole (402) extending to the bottom of the rectangular groove (201) is arranged on the inner top wall of the fan-shaped collecting chamber (401), and an arc-shaped door panel (403) corresponding to the fan-shaped collecting chamber (401) is hingedly connected to the outer surface of the positioning platform (1) for facilitating cleaning of debris collected inside the fan-shaped collecting chamber (401).

8. A mechanical fixture for machining according to claim 7, characterized in that: The collecting assembly (4) further comprises a dust suction fan (404) fixedly mounted on the lower surface of the positioning platform (1), and a suction pipe (405) extending into the two fan-shaped collecting chambers (401) is arranged at the suction end of the dust suction fan (404), and a filter cover is arranged at the end of the suction pipe (405).

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