Fixing mechanical clamp for machining

Abstract

The utility model discloses a fixed mechanical clamp for machining, belongs to the technical field of machining, and aims to solve the problems that a mechanical clamp is single in clamping direction and scraps generated by grinding and cutting pollute the environment, the fixed mechanical clamp comprises a working table, a plurality of supporting columns are fixedly connected to the bottom of the working table, and two clamping mechanisms are arranged at the top of the working table. By arranging the clamping mechanism, the air cylinder drives the trapezoidal push block to move upwards, so that the first clamping plate moves upwards, the trapezoidal push block moves upwards under the action of the guide wheel, and the clamping plate moves upwards, so that the trapezoidal push block moves upwards, and the clamping plate moves upwards. And two second supporting rods move towards the outer side to drive two first supporting rods to contract towards the inner side, so that two second clamping plates move towards the inner side, the two second clamping plates are matched with the first clamping plates, a workpiece is clamped and fixed in three directions, the clamping device can be suitable for workpieces of different sizes and shapes, and the clamping effect is more stable.

Description

Technical Field

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

[0002] Machining refers to the process of using machine tools and cutting tools to perform cutting, grinding, drilling, milling and other operations on workpieces to give the workpieces the desired shape, size and surface quality. Machining is widely used in the manufacturing industry, including the automotive, aerospace, electronics, mechanical equipment and other industries. It can achieve high-precision and high-efficiency processing and provide important support for the manufacture of various products. In the machining process, it is usually necessary to grind, cut or chamfer the materials to make them more in line with the quality requirements of the products. However, the realization of these processes is inseparable from the positioning of the materials. Fixed mechanical fixtures are usually used to clamp them to prevent them from shifting during processing.

[0003] The prior art discloses a mechanical fixture for machining with a patent announcement number of CN218313150U. The patent includes a device body. The motor drives the reducer to rotate, thereby driving the bidirectional threaded rod to rotate, which can drive the two sets of sliders to approach each other. Under the action of the connecting rod, the elliptical wheel rotates around the rotating shaft. Under the pulling action of the spring, the roller is always in contact with the elliptical wheel. When the elliptical wheel rotates, it squeezes the sliding rod and makes it slide outward, thereby pushing the connecting rod to rotate around the supporting rod... The device automatically clamps and fixes the metal plate. , no manual clamping is required, so the fixing effect is good and it is easy to use; but in actual use, there are still the following shortcomings: from a practical point of view, when the device fixes the workpiece, it can only generate extrusion force on the workpiece from two directions, so as to clamp and fix the workpiece, but the two clamps in the same direction cannot effectively clamp when facing tubular workpieces or special-shaped workpieces. When the clamping force is increased, the special-shaped workpiece is prone to fall off; at the same time, a large amount of waste chips will be generated during grinding or cutting, and these waste chips will pollute the working environment. If inhaled by the staff, it will affect their health.

[0004] Therefore, there is a need for a fixed mechanical fixture for machining to solve the problems in the prior art of single clamping direction of the mechanical fixture and waste chips generated during grinding and cutting that pollute the environment. Utility Model Content

[0005] The purpose of the utility model is to provide a fixed mechanical fixture for mechanical processing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixed mechanical fixture for mechanical processing, comprising a workbench, a plurality of support columns are fixedly connected to the bottom of the workbench, two clamping mechanisms are arranged on the top of the workbench, an adsorption hood is installed at the center position of the top of the workbench, a first air duct is fixedly connected to the bottom of the adsorption hood, a suction fan is fixedly connected to the end of the first air duct, a second air duct is fixedly connected to the rear end of the suction fan, and a dust box is fixedly connected to the end of the second air duct.

[0007] It should be noted in the solution that the bottoms of the plurality of support columns are fixedly connected with shock-absorbing pads.

[0008] It is further worth mentioning that the adsorption hood passes through the workbench, and the bottom of the adsorption hood is fixedly connected to the first air duct.

[0009] It should be further explained that a vent with a filter is provided at the rear end of the dust collecting box.

[0010] As a preferred embodiment, the clamping mechanism includes a cylinder installed at the bottom of the workbench, the cylinder output end is fixedly connected to a trapezoidal push block, the top of the trapezoidal push block is installed with a first clamping plate, the bottom of the trapezoidal push block is fixedly connected to two guide rods, the top of the workbench is fixedly connected to two support plates, the inner sides of the two support plates are fixedly connected to two connecting plates, a rotating shaft is rotatably connected between every two corresponding connecting plates, the outer walls of the two rotating shafts are fixedly connected to mounting sleeves, the bottoms of the two mounting sleeves are fixedly connected to a first support rod, the bottoms of the two first support rods are installed with guide wheels corresponding to the trapezoidal push block, the tops of the two mounting sleeves are fixedly connected to a second support rod, and the inner sides of the tops of the two second support rods are installed with second clamping plates corresponding to the first clamping plates.

[0011] As a preferred embodiment, a through hole corresponding to the guide rod is opened at the bottom of the workbench, and the guide wheel rolls and fits against the outer wall of the trapezoidal push block.

[0012] As a preferred embodiment, the first clamping plate and the second clamping plate are respectively mounted on the top of the trapezoidal push block and the inner side of the second support rod through universal joints.

[0013] Compared with the prior art, the utility model provides a fixed mechanical fixture for mechanical processing, which has at least the following beneficial effects:

[0014] (1) By setting up a clamping mechanism, the cylinder drives the trapezoidal push block to move upward, thereby causing the first clamping plate to move upward. While the trapezoidal push block moves upward, under the action of the guide wheel, the two second support rods move outward to drive the two first support rods to contract inward, thereby causing the two second clamping plates to move inward. The two second clamping plates cooperate with the first clamping plates to clamp and fix the workpiece from three directions. This can be applicable to workpieces of different sizes and shapes, making the clamping effect more stable.

[0015] (2) By setting up an adsorption hood and turning on the suction fan during the cutting and grinding process, the suction fan drives the adsorption hood to adsorb the waste chips generated by cutting and grinding and collect them in a dust collection box, thereby preventing the waste chips from being inhaled in large quantities by the workers and affecting their health, thereby protecting the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model from a third viewing angle;

[0019] Figure 4 It is a structural schematic diagram of the clamping mechanism of the utility model.

[0020] In the figure: 1. workbench; 2. support column; 3. clamping mechanism; 301. cylinder; 302. trapezoidal push block; 303. first clamping plate; 304. guide rod; 305. support plate; 306. connecting plate; 307. rotating shaft; 308. mounting sleeve; 309. first support rod; 310. guide wheel; 311. second support rod; 312. second clamping plate; 4. adsorption hood; 5. first air duct; 6. suction fan; 7. second air duct; 8. dust collection box. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the embodiments.

[0022] See also Figure 1-4 The utility model provides a fixed mechanical fixture for mechanical processing, including a workbench 1, a plurality of support columns 2 are fixedly connected to the bottom of the workbench 1, two clamping mechanisms 3 are arranged on the top of the workbench 1, an adsorption hood 4 is installed at the center position of the top of the workbench 1, a first air duct 5 is fixedly connected to the bottom of the adsorption hood 4, a suction fan 6 is fixedly connected to the end of the first air duct 5, a second air duct 7 is fixedly connected to the rear end of the suction fan 6, and a dust collection box 8 is fixedly connected to the end of the second air duct 7.

[0023] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that the bottoms of the multiple support columns 2 are fixedly connected with shock-absorbing pads, which play a role in buffering and shock absorption, ensuring that the workbench 1 always remains stable during the cutting and grinding process, and further ensuring the stability of the clamping.

[0024] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that the adsorption hood 4 passes through the workbench 1, and the bottom of the adsorption hood 4 is fixedly connected to the first air duct 5, so that the metal scraps generated during cutting and grinding can be adsorbed by the adsorption hood 4 in time and collected in the next step.

[0025] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that a vent with a filter is provided at the rear end of the dust box 8 to ensure that the air between the suction fan 6 and the dust box 8 can flow smoothly, and the filter prevents smoke and dust from escaping from the vent.

[0026] According to the above working process, it can be known that: by setting the adsorption hood 4, turning on the suction fan 6 during the cutting and grinding process, the suction fan 6 drives the adsorption hood 4 to adsorb the waste chips generated by cutting and grinding and collect them in the dust box 8, thereby preventing the waste chips from being inhaled in large quantities by the staff and affecting their health, thereby protecting the working environment.

[0027] Further as Figure 4 As shown, it is worth specifically explaining that the clamping mechanism 3 includes a cylinder 301 installed at the bottom of the workbench 1, a trapezoidal push block 302 is fixedly connected to the output end of the cylinder 301, a first clamping plate 303 is installed on the top of the trapezoidal push block 302, two guide rods 304 are fixedly connected to the bottom of the trapezoidal push block 302, two support plates 305 are fixedly connected to the top of the workbench 1, two connecting plates 306 are fixedly connected to the inner sides of the two support plates 305, a rotating shaft 307 is rotatably connected between each two corresponding connecting plates 306, and the outer walls of the two rotating shafts 307 are fixedly connected There are mounting sleeves 308, the bottoms of the two mounting sleeves 308 are fixedly connected with first support rods 309, the bottoms of the two first support rods 309 are installed with guide wheels 310 corresponding to the trapezoidal push blocks 302, the tops of the two mounting sleeves 308 are fixedly connected with second support rods 311, the top inner sides of the two second support rods 311 are installed with second clamping plates 312 corresponding to the first clamping plates 303, and by setting the clamping mechanism 3, the workpiece can be clamped and fixed from three directions, which can be suitable for workpieces of different sizes and shapes, making the clamping effect more stable.

[0028] Further as Figure 4As shown, it is worth explaining in detail that a through hole corresponding to the guide rod 304 is opened at the bottom of the workbench 1, and the guide wheel 310 rolls and fits against the outer wall of the trapezoidal push block 302. The guide rod 304 guides and limits the movement of the trapezoidal push block 302, ensuring that the trapezoidal push block 302 can only move in the vertical direction, making the movement of the trapezoidal push block 302 more stable. The rolling fit ensures that the movement of the trapezoidal push block 302 can drive the two guide wheels 310 to move outward at the same time, thereby providing power for the movement of the second clamping plate 312.

[0029] Further as Figure 4 As shown, it is worth explaining in detail that the first clamping plate 303 and the second clamping plate 312 are respectively installed on the top of the trapezoidal push block 302 and the inner side of the second support rod 311 through universal joints. Under the action of the universal joint, the first clamping plate 303 and the second clamping plate 312 can flexibly change their angles and fit more fully with the surface of the workpiece, thereby clamping more stably and firmly.

[0030] This solution has the following working process: in actual use, the workpiece to be processed is placed on the top of the first clamping plate 303, and then the cylinder 301 is turned on to drive the trapezoidal push block 302 to move upward, thereby causing the first clamping plate 303 to move upward. While the trapezoidal push block 302 moves upward, under the action of the guide wheel 310, the two second support rods 311 move outward to drive the two first support rods 309 to shrink inward, thereby causing the two second clamping plates 312 to move inward. The two second clamping plates 312 cooperate with the first clamping plate 303 to clamp and fix the workpiece from three directions. At the same time, the suction fan 6 is turned on, and the suction fan 6 drives the adsorption hood 4 to adsorb the waste chips generated by cutting and grinding and collect them in the dust box 8.

[0031] In summary: by setting up the adsorption hood 4, turning on the suction fan 6 during the cutting and grinding process, the suction fan 6 drives the adsorption hood 4 to adsorb the waste chips generated by the cutting and grinding and collect them in the dust box 8, thereby preventing the waste chips from being inhaled in large quantities by the staff and affecting their health, thereby protecting the working environment; by setting up the clamping mechanism 3, the workpiece can be clamped and fixed from three directions, which can be suitable for workpieces of different sizes and shapes, making the clamping effect more stable.

Claims

1. A fixed mechanical fixture for machining, comprising a workbench (1), characterized in that: The bottom of the workbench (1) is fixedly connected to a plurality of support columns (2), and the top of the workbench (1) is provided with two clamping mechanisms (3), the clamping mechanism (3) comprising a cylinder (301) installed at the bottom of the workbench (1), the output end of the cylinder (301) is fixedly connected to a trapezoidal push block (302), the top of the trapezoidal push block (302) is installed with a first clamping plate (303), the bottom of the trapezoidal push block (302) is fixedly connected to two guide rods (304), the top of the workbench (1) is fixedly connected to two support plates (305), the inner sides of the two support plates (305) are fixedly connected to two connecting plates (306), each two corresponding connecting plates (306) are rotatably connected to a rotating shaft (307), and the outer walls of the two rotating shafts (307) are fixedly connected to a mounting sleeve (3 08), the bottoms of the two installation sleeves (308) are fixedly connected to the first support rod (309), the bottoms of the two first support rods (309) are installed with guide wheels (310) corresponding to the trapezoidal push blocks (302), the tops of the two installation sleeves (308) are fixedly connected to the second support rod (311), the inner positions of the tops of the two second support rods (311) are installed with second clamping plates (312) corresponding to the first clamping plate (303), an adsorption cover (4) is installed at the center of the top of the workbench (1), the bottom of the adsorption cover (4) is fixedly connected to the first air duct (5), the end of the first air duct (5) is fixedly connected to the suction fan (6), the rear end of the suction fan (6) is fixedly connected to the second air duct (7), and the end of the second air duct (7) is fixedly connected to the dust collecting box (8).

2. A mechanical fixture for machining according to claim 1, characterized in that: The bottoms of the plurality of support columns (2) are all fixedly connected with shock-absorbing pads.

3. A mechanical fixture for machining according to claim 1, characterized in that: The adsorption cover (4) passes through the workbench (1), and the bottom of the adsorption cover (4) is fixedly connected to the first air duct (5).

4. A fixed mechanical fixture for machining according to claim 1, characterized in that: The rear end of the dust collecting box (8) is provided with a ventilating opening with a filter screen.

5. A mechanical fixture for machining according to claim 1, characterized in that: A through hole corresponding to the guide rod (304) is provided at the bottom of the workbench (1), and the guide wheel (310) rolls against the outer wall of the trapezoidal push block (302).

6. A mechanical fixture for machining according to claim 1, characterized in that: The first clamping plate (303) and the second clamping plate (312) are respectively mounted on the top of the trapezoidal push block (302) and the inner side of the second support rod (311) through universal joints.

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