Tool for adsorbing workpiece in vacuumizing mode

Abstract

The utility model relates to a tool for adsorbing workpieces in a vacuumizing mode, which comprises a material supporting plate, a plurality of supporting plate fixing holes, first fixing holes and first adsorption holes are formed in the surface of the material supporting plate, and the first adsorption holes are connected to an external vacuum pump; for a blank piece which is not fixed through a through hole, an external vacuum pump can extract gas in the first adsorption hole, so that the bottom of a workpiece to be machined can be firmly attached to the surface of the material supporting plate, and for the workpiece to be machined with a threaded hole, the air in the first adsorption hole can be sucked out. When the workpiece is fixed, the threaded hole of the workpiece is aligned to the interior of the first fixing hole, and then the workpiece is fixed in a threaded mode.

Description

Technical Field

[0001] This utility model relates to the field of tooling equipment technology, specifically to a tooling that uses a vacuum method to adsorb workpieces. Background Technology

[0002] Machining requires machining equipment, but equipment and raw materials alone cannot produce mechanical parts. Necessary equipment is also needed, which is called tooling. Tooling encompasses a wide range, including cutting tools, fixtures, measuring tools, molds, and so on. There are general-purpose tooling and special-purpose tooling. Some specialized equipment requires less tooling, while general-purpose equipment requires more. Special-purpose tooling requires specialized design and manufacturing, playing a crucial role in product quality and production efficiency.

[0003] Application announcement number CN115811839A discloses a vacuum adsorption workbench for processing lost foam casting materials. According to its specification and drawings, the solution includes: a box body, a sealing groove, a sealing plug, a threaded hole, a cover plate, through holes, vent holes, and an air extraction device. The cover plate has at least four through holes at different positions corresponding to the inner cavity of the box body, and the sealing plugs are used to seal the through holes. However, there are too many through holes on the entire surface of the cover plate. In the production process, this tooling lacks versatility and adaptability, which brings inconvenience to production and use. Summary of the Invention

[0004] This invention addresses the problems existing in the use of tooling by proposing a tooling that uses vacuum to adsorb workpieces. For blanks without through holes for fixation, an external vacuum pump extracts gas from the first adsorption hole, allowing the bottom of the workpiece to be processed to firmly adhere to the surface of the material support plate. For workpieces with threaded holes, the threaded holes can be aligned with the inside of the first fixing hole, and then the workpiece can be fixed by threads. The numerous suction grooves enhance the adsorption effect of the entire material support plate. For thin-walled workpieces that are easily deformed during machining, the vacuum pump extracts gas from the first adsorption hole at the bottom, ensuring the bottom of the workpiece firmly adheres to the surface of the material support plate, preventing the bottom from arching and affecting machining accuracy. If the workpiece also has threaded holes, these can be aligned with the inside of the first fixing hole for enhanced fixation. The numerous suction grooves further enhance the adsorption effect of the entire material support plate.

[0005] The purpose of this invention is achieved through the following technical solution: a tooling for adsorbing workpieces by vacuuming, comprising a material support plate, wherein the surface of the material support plate is provided with a plurality of support plate fixing holes, a first fixing hole and a first adsorption hole, a plug is provided on the support plate fixing hole, the first adsorption hole is connected to an external vacuum pump, and the plug blocks the support plate fixing hole to prevent gas from entering from the support plate fixing hole during vacuuming.

[0006] Preferably, the cross-section of the material support plate is polygonal or circular, and the corners and edges of the material support plate are chamfered to avoid scratching the user's hands. Of course, the cross-section of the material support plate can also be any suitable shape, such as rectangular, circular or regular polygonal, to meet the adsorption and fixation of workpieces of various shapes.

[0007] Preferably, the side of the material support plate is provided with a suction hole, and the bottom of the first adsorption hole is connected to the end of the suction hole. The suction hole is connected to an external vacuum pump. This arrangement is to enable both the first adsorption hole and the suction groove to remove the gas inside.

[0008] Preferably, each of the support plate fixing holes is provided with an annular boss inside. External screws pass through the support plate fixing holes and the annular boss to connect to the worktable on the machine tool. After the screws are tightened, the support plate fixing holes are sealed with plugs to prevent gas from flowing from the back through the support plate fixing holes into the bottom of the workpiece and between the material support plate during vacuuming, thus preventing the vacuuming process from being completed.

[0009] Preferably, the first fixing hole is provided with a circular boss inside, and a wire threaded sleeve for auxiliary fastening of the workpiece is also detachably provided inside the first fixing hole. This setting is to enable the first fixing hole to fix the workpiece to be processed. The wire threaded sleeve is interference-fitted with the inner wall of the first fixing hole. After the internal thread of the wire threaded sleeve is worn, a new wire threaded sleeve can be replaced to ensure the firmness of the fixation and extend the service life of the entire support plate.

[0010] Preferably, the surface of the material support plate is provided with a plurality of square or rectangular bosses, and the support plate fixing hole or the first fixing hole is provided on each square or rectangular boss.

[0011] Preferably, an air extraction groove is provided between adjacent square or rectangular bosses. This is to allow the workpiece to be processed to fit against the surface of the air extraction groove, and then fill the air extraction groove around the bottom outer periphery of the workpiece in contact with the support plate with a soft sealing strip to form a sealed area at the bottom of the workpiece. The negative pressure generated after the gas in the air extraction groove is extracted can hold the workpiece in place.

[0012] Preferably, the number of the first fixing holes is greater than the number of fixing holes in the support plate, and the diameter of the first fixing holes is smaller than the diameter of the fixing holes in the support plate. This arrangement is to ensure that the entire fixture has a larger area for fixing the workpiece to be processed.

[0013] Compared with the prior art, this utility model has the following advantages: 1. If it is necessary to fix the workpiece to be processed, for blanks without through holes for fixing, the external vacuum pump will extract the gas inside the first adsorption hole, so that the bottom of the workpiece to be processed can be firmly attached to the surface of the material support plate. For workpieces with threaded holes, the threaded holes of the workpiece can be aligned with the inside of the first fixing hole, and then the workpiece can be fixed by threading. In this way, the entire fixture has better adaptability and versatility, and can realize different fixing methods; 2. For the processing and shaping of thin-walled parts (such as aerospace aluminum parts) For easily deformable workpieces, the bottom of the workpiece is filled with a soft sealing strip to form a sealed area. The vacuum pump will extract the gas inside the first adsorption hole and the air extraction groove, so that the bottom of the workpiece to be processed can be firmly attached to the surface of the material support plate, avoiding the bottom arching and causing poor processing accuracy. If the workpiece also has threaded holes, the threaded holes can be aligned with the inside of the first fixing hole to strengthen the fixation. 3. The setting of a large number of air extraction grooves can enhance the adsorption effect of the entire material support plate, and the design of the side air extraction through holes further enhances the tooling's adaptability and versatility, enabling different fixing methods. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a partially enlarged view of the present invention;

[0016] Figure 3 This is a perspective view of the present utility model;

[0017] Figure 4 This is a cross-sectional view of the present invention.

[0018] The markings in the diagram are: 1. Material support plate; 10. First adsorption hole; 11. Support plate fixing hole; 12. First fixing hole; 111. Annular boss; 121. Circular boss; 13. Square boss; 14. Rectangular boss; 15. Air extraction groove; 16. Air extraction through hole. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0020] like Figures 1 to 4As shown, a tooling for adsorbing workpieces using a vacuum method includes a material support plate 1. The surface of the material support plate 1 is provided with a plurality of support plate fixing holes 11 and first fixing holes 12. The cross-section of the material support plate 1 is rectangular, and the corners of the material support plate 1 are chamfered to prevent workers from cutting themselves when installing or fixing / removing the workpiece tooling. The number of first fixing holes 12 is greater than the number of support plate fixing holes 11, and the diameter of the first fixing holes 12 is smaller than the diameter of the support plate fixing holes 11. Each support plate fixing hole 11 has an annular boss 111 inside, and each first fixing hole 12 has a circular boss 121 inside. The first fixing hole 12 also has a detachable... The wire threaded sleeve used for auxiliary workpiece fastening has an interference fit between the inner wall of the first fixing hole 12 and the wire threaded sleeve. With this configuration, the external bolts pass through the support plate fixing hole 11 and the annular boss 111 and are connected to the worktable of the machine tool. The support plate fixing hole is then sealed with a plug. The annular boss 111 serves to limit and fasten the external bolts. For workpieces with threaded holes, the threaded holes of the workpieces can be aligned with the wire threaded sleeve inside the first fixing hole 12, and then the workpieces can be fixed by threading. It should be noted that the wire threaded sleeve is detachable and is installed inside the first fixing hole 12 by interference fit. If the wire threaded sleeve is damaged, it can be removed and replaced with a new one. The entire tooling has better adaptability and versatility.

[0021] In this embodiment, the surface of the material support plate 1 is further provided with a first adsorption hole 10, which can be connected to an external vacuum pump. The side of the material support plate 1 is provided with a suction hole 16, and the bottom of the first adsorption hole 10 communicates with the end of the suction hole 16. The suction hole 16 is connected to an external vacuum pump via a connector and a vacuum suction tube. The surface of the material support plate 1 is provided with several square bosses 13 and rectangular bosses 14. The support plate fixing hole 11 or the first fixing hole 12 is provided on each square boss 13 or rectangular boss 14. Suction grooves 15 are provided between adjacent square bosses 13 or rectangular bosses 14. With this arrangement, whenever a workpiece to be processed is placed on the surface of the material support plate 1, the suction grooves 15 firstly increase the friction for marking and positioning, thus facilitating installation and fixation by the user. When adsorption is required on the workpiece to be processed, firstly, a soft object, such as a rubber sealing strip, is placed around the air extraction groove 15 at the edge of the workpiece to form a closed area between the bottom of the product and the material support plate. Then, the air inside the first adsorption hole 10 is extracted by an external vacuum pump through a connector and a vacuum suction tube. During this process, the air inside the air extraction groove 15 on the surface of the material support plate 1 is extracted using the air extraction through hole 16. The surface of the bottom of the workpiece to be processed, which is enclosed by the rubber sealing strip, can be firmly attached to the surface of the material support plate 1. The setting of a large number of air extraction grooves 15 can enhance the adsorption effect of the entire material support plate 1. Moreover, the side air extraction through hole 16 can be used to install connectors and vacuum suction tubes. This design further enhances the tooling's adaptability and versatility, enabling different fixing methods.

[0022] Working principle and usage of this utility model:

[0023] First, the external bolts are passed through the support plate fixing holes 11 and the annular boss 111 and connected to the worktable of the machine tool. The annular boss 111 serves to limit and tighten the external bolts. The upper support plate fixing holes 11 are then plugged with plugs to prevent gas from entering the worktable through the support plate fixing holes during vacuuming. For workpieces with threaded holes, the threaded holes of the workpieces can be aligned with the wire thread sleeve inside the first fixing hole 12, and then the workpieces can be fixed by threads. For blank workpieces without threaded holes, the air inside the air extraction through holes 16 and the air extraction grooves 15 on the surface of the material support plate 1 are used to remove the air, so that the bottom of the workpiece on the surface of the first adsorption hole 10 can be firmly attached to the surface of the material support plate 1. The numerous air extraction grooves 15 can enhance the adsorption effect of the entire material support plate 1, and the design of the side air extraction through holes 16 further enhances the tooling's adaptability and versatility. Of course, threaded hole fixing and bottom adsorption fixing can also be used simultaneously to achieve different fixing methods.

[0024] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A tool for adsorbing a workpiece by vacuum suction, comprising a material support plate (1), characterized in that, The surface of the material support plate (1) is provided with a plurality of support plate fixing holes (11), first fixing holes (12) and first adsorption holes (10), the support plate fixing hole (11) is provided with a plug, the first adsorption hole (10) is connected to an external vacuum pump, the side of the material support plate (1) is provided with an air exhaust through hole (16), the bottom of the first adsorption hole (10) is communicated with the end of the air exhaust through hole (16), the air exhaust through hole (16) is connected to an external vacuum pump through a joint and a vacuum suction tube, the inside of each support plate fixing hole (11) is provided with an annular boss (111), an external bolt is connected to a worktable on a machine tool through the support plate fixing hole (11) and the annular boss (111); The surface of the material support plate (1) is provided with a plurality of square bosses (13) or rectangular bosses (14), the support plate fixing hole (11) or the first fixing hole (12) is arranged on each square boss (13) or rectangular boss (14); The adjacent square bosses (13) or rectangular bosses (14) are provided with an air exhaust groove (15), and the surface around the first adsorption hole (10) is provided with a plurality of grooves connected with the air exhaust groove (15) and the air exhaust through hole (16).

2. The apparatus according to claim 1, wherein The cross section of the material support plate (1) is polygonal or circular, and the corners of the material support plate (1) are chamfered.

3. The apparatus according to claim 2, wherein The inside of the first fixing hole (12) is provided with a circular boss (121), and the inside of the first fixing hole (12) is also detachably provided with a steel wire sleeve for auxiliary fastening of a workpiece.

4. The apparatus according to claim 3, wherein The number of the first fixing holes (12) is greater than that of the support plate fixing holes (11), and the diameter of the first fixing holes (12) is smaller than that of the support plate fixing holes (11).

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