Thin-walled special-shaped part adsorption tooling

Abstract

This utility model discloses a tooling for adsorbing thin-walled irregularly shaped parts, including a machine base and a support plate fixed thereon. A set of crisscrossing support blocks are fixed on the support plate. Each support block has a receiving groove, and the bottom of the receiving groove has an exhaust hole on the support block. Each exhaust hole is fitted with a branch pipe, the other end of which is connected in parallel to the same main pipe. An adsorption pump is installed on the main pipe. A floating block that can move up and down is built into the receiving groove. An air extraction groove is opened within the floating block. The air extraction groove and the receiving groove are configured to define a relatively sealed receiving space. An adsorption hole connected to the air extraction groove is opened on the top of the floating block to adsorb the part. The advantages of this utility model are mainly reflected in: its ingenious design; the part can be supported by a set of crisscrossing floating blocks, which can prevent the part from bending under gravity, ensure the flatness of the part, and improve the yield rate of subsequent processing.

Description

Technical Field

[0001] This utility model relates to the field of parts adsorption fixture technology, and more specifically, to a thin-walled irregular parts adsorption fixture. Background Technology

[0002] Tooling, also known as process equipment, refers to the general term for all tools used in the manufacturing process. This includes cutting tools, fixtures, molds, measuring tools, inspection tools, auxiliary tools, fitter's tools, and workstation equipment. A part is a single component used to assemble a machine; it is a basic component that can be assembled into machines, instruments, and various equipment. Thin-walled, irregularly shaped parts often require specific tooling for machining.

[0003] As disclosed in patent announcement CN218051479U, a clamping fixture for adsorbing and clamping thin sheet non-ferrous metals includes a detachable clamping positioning plate fixed to a machine tool worktable. The top surface of the clamping positioning plate has an annular groove for adsorbing and clamping the thin sheet workpiece. An air intake port communicating with the annular groove is provided on one side of the clamping positioning plate at intervals. An annular groove is formed within the annular groove and is sealed with elastic sealant. An anti-translation structure is provided on the elastic sealant to prevent the thin sheet workpiece from shifting. In this fixture, the thin sheet workpiece and the elastic sealant first form a sealed space. Then, a vacuum pump connected to the air intake port extracts air from this sealed space, achieving a negative pressure state, thereby achieving adsorption. However, because the top of the elastic sealant is higher than the worktable, the middle of the thin sheet workpiece is prone to bending when it falls onto it, affecting the yield rate during subsequent processing. In addition, since the thin plates to be processed vary in shape, this tooling cannot be used for processing irregularly shaped thin plates, which has significant limitations. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an adsorption fixture for thin-walled irregular parts.

[0005] The objective of this utility model is achieved through the following technical solution: A thin-walled irregular-shaped part adsorption fixture includes a machine base and a support plate fixed thereon. A set of crisscrossing support blocks are fixed on the support plate. Each support block has a receiving groove. The bottom of the receiving groove has an exhaust hole opened on the support block. Each exhaust hole is equipped with a branch pipe. The other end of the branch pipe is connected in parallel to the same main pipe. An adsorption pump is installed on the main pipe. The receiving groove contains a floating block that can float up and down. The floating block has an air extraction groove. The air extraction groove and the receiving groove are configured to define a relatively sealed receiving space. The top of the floating block has an adsorption hole that connects to the air extraction groove to adsorb the part.

[0006] Preferably, the receiving groove has a built-in return spring, and the other end of the return spring abuts against the bottom surface of the floating block.

[0007] Preferably, the floating block includes an integrally formed large-diameter end and a small-diameter end. The large-diameter end is provided with the air extraction groove, and the adsorption hole is provided on the small-diameter end. The small-diameter end extends at least partially to the outside of the support plate. The support plate is fixed on the machine base and located directly above the support plate.

[0008] Preferably, a pressure sensor is provided on the outer side of the small diameter end, and the pressure sensor is fixed on the large diameter end and can abut against the support plate.

[0009] Preferably, a control valve is fixedly installed on the branch pipe, and the control valve is electrically connected to the pressure sensor.

[0010] Preferably, an urethane ring is fixed on the upper surface of the support block, and a sealing groove is formed on the outer circumferential surface of the large-diameter end. A sealing ring adapted to the sealing groove is placed inside the sealing groove. When the top of the small-diameter end is on the same plane as the upper surface of the support plate, the sealing ring abuts against the urethane ring.

[0011] Preferably, the urethane ring is locked to the support block by a locking bolt.

[0012] Preferably, the main pipeline is equipped with a regulating valve.

[0013] The beneficial effects of this utility model are mainly reflected in: 1. The fixture features an ingenious design and a rational layout. Parts are supported by a set of crisscrossing floating blocks, preventing bending under gravity, ensuring flatness, and improving the yield rate of subsequent processing. Furthermore, this fixture is suitable for positioning various irregularly shaped parts, demonstrating wide applicability.

[0014] 2. The reset spring can reset the floating block when the part is removed, so as to facilitate the next operation and greatly improve work efficiency. Moreover, this layout is easy to replace, inspect and maintain, and has high stability.

[0015] 3. In this application, all branch pipes are connected to the same adsorption pump through the main pipe. This design achieves high integration, reduces space occupation, facilitates reasonable layout, and also significantly reduces costs, which is beneficial to enterprise development.

[0016] 4. When the floating block moves downward until the sealing ring comes into contact with the urethane ring, the floating block and the support block cooperate to form a receiving space. This design can prevent gas from leaking out of the receiving space, thereby ensuring the accuracy of adsorption and improving the quality of subsequent processing. Attached Figure Description

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings: Figure 1 Top view of a preferred embodiment of this utility model; Figure 2 : Figure 1 Sectional view of AA; Figure 3 : Figure 2 Enlarged view of part A in the middle. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] like Figures 1 to 3 As shown, this utility model discloses an adsorption fixture for thin-walled irregular parts, including a machine base 1 and a support plate 2 fixed thereon. A set of support blocks 3 arranged in a crisscross pattern are fixed on the support plate 2. In this preferred embodiment, the support blocks are equidistantly arranged along the transverse direction of the support plate 2, and the support blocks 3 are also equidistantly arranged along the longitudinal direction of the support plate 2. Of course, the support blocks can also adopt other layout methods, all of which fall within the protection scope of this utility model.

[0022] In this invention, each support block 3 is provided with a receiving groove 31. The bottom of the receiving groove 31 has an exhaust hole 32 formed on the support block 3. Each exhaust hole 32 is fitted with a branch pipe 33, the other end of which is connected in parallel to the same main pipe 34. The main pipe 34 is equipped with a regulating valve 30, and on the other side of the regulating valve 30 is an adsorption pump 35 mounted on the main pipe 34. This ingenious layout, where all branch pipes 33 are connected to the same adsorption pump 35 via the main pipe 34, achieves high integration, reduces space occupation, facilitates rational layout, and significantly reduces costs, thus benefiting enterprise development.

[0023] Furthermore, the receiving groove 31 contains a floating block 4 that can float up and down, and a return spring 36 is also built into the receiving groove 31. The other end of the return spring 36 abuts against the bottom surface of the floating block 4. The top of the floating block 4 has an adsorption hole 42 that connects to the suction groove 41 to adsorb the part 100. The return spring 36 can reset the floating block 4 when the part 100 is removed, so as to facilitate the next operation, greatly improving work efficiency. Moreover, this layout is easy to replace, inspect and maintain, and has high stability and wide applicability.

[0024] In the above description, a control valve 37 is fixedly installed on the branch pipe 33, and the control valve 37 is electrically connected to the pressure sensor 45. The pressure sensor 45 is located on the outside of the small diameter end 44 and fixed on the large diameter end 43, and can abut against the support plate 11. Specifically, when the part 100 is placed on the floating block 4, the floating block 4 moves downward under the action of gravity, that is, the pressure sensor separates from the support plate 11, and the reading on the pressure sensor is 0. At this time, the control valve opens. When the part 100 is removed from the floating block 4, the floating block moves upward under the action of the return spring 36, the pressure sensor abuts against the support plate, and the reading on the pressure sensor is not 0. At this time, the control valve closes.

[0025] In this embodiment, the floating block 4 includes an integrally formed large-diameter end 43 and a small-diameter end 44. The large-diameter end 43 has an air extraction groove 41, and the air extraction groove 41 and the receiving groove 31 are configured to define a relatively sealed receiving space. The adsorption hole 42 is formed on the small-diameter end 44, and the small-diameter end 44 extends at least partially to the outside of the support plate 11. The support plate 11 is fixed on the machine base 1 and is located directly above the support plate 2.

[0026] An urethane ring 38 is fixed to the upper surface of the support block 3, and the urethane ring 38 is locked to the support block 3 by a locking bolt 39. A sealing groove 46 is formed on the outer circumferential surface of the large-diameter end 43, and a matching sealing ring 47 is placed inside the sealing groove 46. When the top of the small-diameter end 44 is on the same plane as the upper surface of the support plate 11, the sealing ring 47 abuts against the urethane ring 38. When the floating block 4 moves downward until the sealing ring 47 abuts against the urethane ring 38, the floating block 4 and the support block 3 cooperate to form the receiving space. This design can prevent gas leakage from the receiving space, thereby ensuring the accuracy of adsorption and improving the yield of subsequent processing.

[0027] The above design is ingenious and rationally laid out. Part 100 can be supported by a set of crisscrossing floating blocks 4, which can prevent the part from bending under the action of gravity, ensure the flatness of the part, and improve the yield of subsequent processing. At the same time, this fixture is suitable for positioning various irregularly shaped parts and has a wide range of applicability.

[0028] The working process of this utility model is briefly described below: When part 100 is placed on the floating block 4, the floating block 4 moves downward under the action of gravity, that is, the sealing ring 47 abuts against the urethane ring 38. The floating block 4 and the support block 3 cooperate to form the sealed receiving space. At the same time, the pressure sensor separates from the support plate 11, and the reading on the pressure sensor is 0. At this time, the control valve opens, the adsorption pump 35 starts, and the part is adsorbed through the main pipe 34, the corresponding branch pipe 33 and the adsorption hole 42.

[0029] When it is necessary to remove the part 100 from the floating block 4, the adsorption pump 35 stops working, the floating block moves upward under the force of the return spring 36, the pressure sensor abuts against the support plate, and the reading on the pressure sensor is not 0. At this time, the control valve closes.

[0030] If the weight of the part 100 is relatively light and the floating block 4 cannot be moved downward by gravity, the part surface can be gently and evenly tapped with a wooden mallet or rubber mallet to make the floating block move downward until the sealing ring 47 abuts against the urethane ring 38, the pressure sensor separates from the support plate 11, and the reading on the pressure sensor is 0. At this time, the control valve opens, the adsorption pump 35 starts, and the part is adsorbed through the main pipe 34, the corresponding branch pipe 33 and the adsorption hole 42.

[0031] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0032] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A thin-walled irregular-shaped parts adsorption fixture, comprising a machine base (1) and a support plate (2) fixed thereon, characterized in that: A set of cross-arranged support blocks (3) are fixed on the support plate (2). Each support block (3) has a receiving groove (31). The bottom of the receiving groove (31) is provided with an exhaust hole (32) on the support block (3). Each exhaust hole (32) is equipped with a branch pipe (33). The other end of the branch pipe (33) is connected in parallel to the same main pipe (34). The main pipe (34) is provided with an adsorption pump (35). The receiving groove (31) contains a floating block (4) that can float up and down. The floating block (4) has an air extraction groove (41). The air extraction groove (41) and the receiving groove (31) are configured to define a relatively sealed receiving space. The top of the floating block (4) has an adsorption hole (42) that is connected to the air extraction groove (41) to adsorb the part (100).

2. The thin-walled profiled part suction tooling according to claim 1, characterized in that: The receiving slot (31) has a built-in reset spring (36), and the other end of the reset spring (36) abuts against the bottom surface of the floating block (4).

3. The thin-walled profiled part suction tooling according to claim 2, characterized in that: The floating block (4) includes an integrally formed large-diameter end (43) and a small-diameter end (44). The large-diameter end (43) is provided with the air extraction groove (41), and the adsorption hole (42) is provided on the small-diameter end (44). The small-diameter end (44) extends at least partially to the outside of the support plate (11). The support plate (11) is fixed on the machine base (1) and located directly above the support plate (2).

4. The thin-walled profiled part suction tooling according to claim 3, characterized in that: A pressure sensor (45) is provided on the outside of the small diameter end (44). The pressure sensor (45) is fixed on the large diameter end (43) and can abut against the support plate (11).

5. The thin-walled irregular part adsorption fixture according to claim 4, characterized in that: A control valve (37) is fixedly installed on the branch pipe (33), and the control valve (37) is electrically connected to the pressure sensor (45).

6. The thin-walled profiled part suction tooling according to claim 5, characterized in that: An urethane ring (38) is fixed on the upper surface of the support block (3). A sealing groove (46) is opened on the outer circumference of the large diameter end (43). A sealing ring (47) that matches it is built into the sealing groove (46). When the top of the small diameter end (44) is on the same plane as the upper surface of the support plate (11), the sealing ring (47) abuts against the urethane ring (38).

7. The thin-walled profiled part suction tooling according to claim 6, characterized in that: The rubber ring (38) is locked onto the support block (3) by a locking bolt (39).

8. The thin-walled profiled part suction tooling according to claim 7, characterized in that: A regulating valve (30) is provided on the main pipeline (34).

Images