CN220637610U - Adsorption jig - Google Patents

Abstract

An adsorption jig comprises a jig body and a plurality of airtight pieces; the surface of the jig body is provided with a plurality of air holes, the inside of the jig body is provided with an air cavity, and the air cavity is communicated with the outside through the plurality of air holes; the airtight pieces are in one-to-one correspondence with the air holes, each airtight piece comprises an airtight main body and an airtight part, the airtight main body is arranged in the corresponding air hole, one end of the airtight main body, which is far away from the air cavity, is provided with a containing groove, the airtight part is contained in the containing groove, the airtight main body is provided with a through hole and an air groove, the through hole penetrates through the bottom of the containing groove to enable the air cavity to be communicated with the containing groove, and the air groove is arranged on the wall of the containing groove and is ventilated with the through hole and the air hole; when the air cavity is vacuumized, the airtight part in the air hole which is not covered by the workpiece is deformed to block the through hole, and the air in the air hole covered by the workpiece is pumped out through the air groove, the through hole and the air cavity to adsorb the workpiece. The adsorption jig can be suitable for workpieces with different sizes, so that the development time of the jig can be shortened, and the development period is shortened.

Description

Adsorption jig

Technical Field

The application relates to the technical field of workpiece adsorption devices, in particular to an adsorption jig.

Background

Before the product is produced, sample development is usually performed, and at this time, a fixing jig matched with the sample needs to be developed. When multiple products are produced, each sample needs to be developed into a matched jig, so that the earlier development period is longer, and the production progress of the products is influenced.

Disclosure of Invention

In view of the above, it is necessary to provide an adsorption fixture, which is applicable to workpieces of different sizes, shortens the development and proofing period of the product, and accelerates the production progress.

The embodiment of the application provides an adsorption jig, which comprises a jig body and a plurality of airtight pieces; the surface of the jig body is provided with a plurality of air holes which are arranged at intervals, the inside of the jig body is provided with an air cavity, and the air cavity is communicated with the outside through a plurality of the air holes; the airtight pieces are in one-to-one correspondence with the air holes, each airtight piece comprises an airtight main body and an airtight part, each airtight main body is arranged in the corresponding air hole, one end of each airtight main body, which is far away from the corresponding air cavity, is provided with a containing groove, each airtight part is contained in each containing groove, each airtight main body is provided with a through hole and an air groove, each through hole penetrates through the bottom of each containing groove so as to enable the corresponding air cavity to be communicated with each containing groove, and each air groove is arranged on the groove wall of each containing groove and is communicated with each through hole and each air hole; when the air cavity is vacuumized, the airtight part in the air hole which is not covered by the workpiece is deformed to seal the through hole so that the air hole is isolated from the air cavity, and air in the air hole covered by the workpiece is pumped out through the air groove, the through hole and the air cavity to adsorb the workpiece.

When the workpiece is placed on the adsorption jig, the workpiece can block a part of air holes, and when the vacuum air source starts sucking air, the air in the air cavity, the through holes and the air holes are simultaneously sucked out of the jig body, and as the air at the two sides of the airtight part is sucked out at the moment, the pressure at the two sides of the airtight part is the same, the airtight part is not deformed, and the airtight part is in an opened state, so that the workpiece is adsorbed; when the air hole on the adsorption jig is not blocked by the workpiece, the air hole is communicated with the external atmosphere, when the vacuum air source starts sucking air, the air in the air cavity and the through hole is sucked away to the outside of the jig body, and the pressure at one end of the air hole, which is far away from the air cavity, is larger than the pressure at the through hole because of the communication between the air hole and the external atmosphere, at the moment, the airtight part deforms and blocks the through hole, and the airtight part is in a closed state. Through adopting above-mentioned absorption tool, no matter what size's work piece is placed on the tool body, the airtight spare automatic closure when the evacuation in the gas pocket that is not blocked on the tool body to avoid taking place the gas leakage, and the airtight spare can keep open state in order to form the absorption to the work piece when the evacuation by the gas pocket that is blocked, therefore absorption tool can be suitable for absorbing multiple not unidimensional work piece, has stronger commonality, thereby has shortened the tool development cycle, and then has shortened the product design development cycle.

In some embodiments, the airtight member further includes a slope portion provided at a bottom of the accommodation groove, the slope portion for supporting the airtight portion to lift the airtight portion away from the through hole; the air groove comprises a straight groove and a transverse groove; the straight groove is arranged on the groove wall of the accommodating groove, and one end of the straight groove is ventilated with the air hole; the transverse groove is arranged on the inclined surface part, one end of the transverse groove is connected with the straight groove, and the other end of the transverse groove is ventilated with the through hole.

In some embodiments, the outer side of the airtight body is provided with a ring groove; the adsorption jig further comprises a sealing element, wherein the sealing element is arranged in the annular groove and is used for sealing a gap between the airtight main body and the pore wall of the air hole.

In some embodiments, the adsorption fixture further comprises a filter element, the filter element is disposed at one end of the airtight main body, which is away from the air cavity, two sides of the filter element are respectively abutted to the fixture body and the airtight main body, and the filter element is used for blocking impurities from entering the accommodating groove.

In some embodiments, the jig body includes a first plate, a second plate, and a mounting plate; the air holes are formed in the first plate; the second plate is arranged on one side of the first plate, a groove is formed in one side, facing the first plate, of the second plate, and the groove and the first plate enclose the air cavity; the mounting plate is connected between the first plate and the second plate, the mounting plate is used for supporting the airtight piece so as to fix the airtight piece in the air hole, a plurality of communication holes arranged at intervals are formed in the mounting plate, and the communication holes are used for communicating the grooves and the through holes.

In some embodiments, the groove bottom thickness of the groove decreases gradually from the edge of the groove to the center of the groove.

In some embodiments, a collecting tank is formed on the bottom wall of the groove, and the collecting tank is used for collecting the processing liquid.

In some embodiments, a plurality of positioning holes are formed in one side, facing away from the second plate, of the first plate, wherein the positioning holes are arranged at intervals with the air holes; the jig body further comprises a plurality of positioning pins, the positioning pins are used for positioning the workpiece, the number of the positioning pins is smaller than that of the positioning holes, and the positioning pins are inserted into different positioning holes to adjust the positions of two adjacent positioning pins.

In some embodiments, the jig body further includes a sealing pad, the sealing pad is disposed on a side of the first plate facing away from the second plate, the sealing pad is used for supporting the workpiece and sealing a gap between the workpiece and the first plate, and a plurality of through holes arranged at intervals are formed in the sealing pad, and the through holes correspond to the air holes one by one.

In some embodiments, the adsorption fixture further comprises a detection member connected to the fixture body, the detection member being configured to detect a pressure within the air cavity.

Drawings

Fig. 1 is a schematic perspective view of an adsorption fixture according to an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view of the adsorption jig shown in fig. 1 along II-II.

Fig. 3 is an exploded view of the jig body of the adsorption jig shown in fig. 1.

Fig. 4 is a schematic perspective view of an airtight member in the adsorption fixture shown in fig. 1.

Fig. 5 is a schematic cross-sectional view of the airtight body in the adsorption jig shown in fig. 4.

Description of the main reference signs

Adsorption jig 100

Jig body 10

First plate 11

Air holes 111

Positioning hole 112

Second plate 12

Groove 121

Collecting tank 122

Mounting plate 13

Communication hole 131

Gasket 14

Through hole 141

Locating pin 15

Air tight piece 20

Air-tight body 21

Accommodating groove 211

Through hole 212

Air groove 213

Straight groove 2131

Transverse groove 2132

Ring groove 214

Air-tight portion 22

Bevel portion 23

Air cavity 30

Vacuum hole 31

Seal member 40

Filter element 50

Detecting piece 60

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the present application. Furthermore, in the description of the present application, it is to be noted that the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two components can be connected in a mechanical mode, can be electrically connected or can be communicated with each other, can be directly connected, can be indirectly connected through an intermediate medium, and can be communicated with each other inside the two components or can be in interaction relation with each other. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, an adsorption fixture 100 is provided in an embodiment of the present application. The adsorption jig 100 is used for adsorbing a plurality of workpieces with different sizes.

Referring to fig. 1, 2 and 3, the adsorption jig 100 includes a jig body 10 and a plurality of airtight members 20. The surface of the jig body 10 is provided with a plurality of air holes 111 arranged at intervals, and in this embodiment, the plurality of air holes 111 are arranged in a rectangular array. The jig body 10 is internally provided with an air cavity 30, a plurality of air holes 111 are communicated with the air cavity 30, the air cavity 30 is communicated with the outside, in the embodiment, the jig body 10 is provided with a vacuumizing hole 31, the vacuumizing hole 31 is communicated with the air cavity 30, and a ball valve switch is arranged on the vacuumizing hole 31, so that the on-off of a vacuumizing air source can be controlled by controlling the opening and closing of the ball valve switch.

The air-tight pieces 20 are arranged in the corresponding air holes 111 in a one-to-one correspondence manner with the air holes 111, and the air-tight pieces 20 are used for controlling the on-off of the air holes 111. When the workpiece is placed on the jig body 10, the workpiece cover is arranged above a part of the air holes 111, and at this time, when an external vacuum air source (not shown) sucks air in the air cavity 30, the airtight piece 20 in the air hole 111 covered by the workpiece keeps an open state, so that the air hole 111 is communicated with the air cavity 30, and the air in the air hole 111 can be sucked away, thereby forming an adsorption force on the workpiece; and the airtight member 20 in the air hole 111 not covered by the workpiece is in a closed state, thereby avoiding failure of the workpiece suction due to air leakage of the air chamber 30.

Referring to fig. 2 and 3, in the present embodiment, the jig body 10 includes a first plate 11, a second plate 12, a mounting plate 13, a gasket 14, and a plurality of positioning pins 15. The gasket 14 is provided on one side of the first plate 11, the mounting plate 13 is provided on one side of the first plate 11 facing away from the gasket 14, and the second plate 12 is connected to one side of the mounting plate 13 facing away from the first plate 11.

The plurality of air holes 111 are rectangular in array on the first plate 11, the air holes 111 are stepped holes, one end of the air holes 111 with larger aperture is arranged towards the second plate 12, and one end of the air holes 111 with smaller aperture penetrates through the first plate 11. The airtight piece 20 is arranged at one end of the air hole 111 with a larger aperture, after the airtight piece 20 is arranged in the air hole 111, the mounting plate 13 is connected to the first plate 11, and the mounting plate 13 plays a role of supporting the airtight piece 20 so as to fix the airtight piece 20 in the air hole 111; the mounting plate 13 is provided with a plurality of communication holes 131 arranged at intervals, in this embodiment, the plurality of communication holes 131 are in one-to-one correspondence with the plurality of air holes 111, and the aperture of the communication hole 131 is smaller than the maximum aperture of the corresponding air hole 111.

The second plate 12 is provided with a groove 121 on one side facing the first plate 11, the thickness of the bottom of the groove 121 gradually decreases from the edge of the groove 121 to the center of the groove 121, and the mounting plate 13 is provided with a communication hole 131, so that the groove 121 is communicated with the air hole 111 on the first plate 11, and the groove 121 and the first plate 11 are surrounded to form an air cavity 30. One end of the vacuum hole 31 is provided on the bottom wall of the groove 121, and the other end of the vacuum hole 31 is provided on the outer side wall of the second plate 12.

The groove bottom of the groove 121 is provided with a collecting groove 122, and when the workpiece is adsorbed and fixed on the jig body 10 and is processed, the processing liquid generated in the processing process can flow into the collecting groove 122, so that the processing liquid is prevented from overflowing everywhere. Since the bottom of the groove 121 is inclined, the purpose of collecting the processing liquid can be achieved so that the processing liquid flows into the collecting groove 122. In this embodiment, a ball valve switch is provided on the second plate 12, and the collection tank 122 is communicated with the outside through the ball valve switch, and an operator can discharge the processing liquid out of the collection tank 122 by opening the ball valve.

The sealing pad 14 may be a rubber pad, and the sealing pad 14 is provided with a plurality of through holes 141 arranged at intervals, the through holes 141 are in one-to-one correspondence with the air holes 111, and the through holes 141 are used for ventilation with the air holes 111 so as to adsorb a workpiece. When the work is placed on the gasket 14, the gasket 14 can seal the gap between the work and the first plate 11, thereby avoiding failure in sucking the work due to air leakage.

The first plate 11 is away from the locating hole 112 that a plurality of intervals set up has been seted up to one side of second plate 12, and the quantity of locating pin 15 is less than the quantity of locating hole 112, and locating pin 15's one end is inserted and is established in locating hole 112, and locating pin 15's the other end protrusion is in first plate 11 and runs through sealed pad 14 in order to butt work piece to the work piece is fixed a position. When the workpieces with different sizes are placed on the sealing gasket 14, operators can insert the positioning pins 15 into the different positioning holes 112, so that the positions of the positioning pins 15 are adjusted according to the sizes of the workpieces, and the universality of the jig body 10 is improved.

Referring to fig. 2, 4 and 5, the airtight member 20 includes an airtight body 21, an airtight portion 22 and a slope portion 23, the airtight body 21 is in a columnar structure, the airtight body 21 is mounted at one end of the air hole 111 with a larger aperture, a receiving groove 211 is formed at one end of the airtight body 21 facing away from the air cavity 30, the airtight portion 22 is a rubber sheet, the airtight portion 22 is received in the receiving groove 211, the slope portion 23 is disposed at a bottom of the receiving groove 211, the slope portion 23 is used for supporting the airtight portion 22, and a thickness h of the slope portion 23 gradually decreases from an edge of the slope portion 23 to a center of the slope portion 23. The airtight body 21 is provided with a plurality of through holes 212 and air grooves 213, the through holes 212 are provided at the bottom of the accommodation groove 211, and both ends of the through holes 212 communicate with the air chamber 30 and the accommodation groove 211, respectively. The number of the air grooves 213 is plural, the air grooves 213 are uniformly arranged on the groove wall of the accommodating groove 211, each air groove 213 comprises a straight groove 2131 and a transverse groove 2132, the straight groove 2131 is arranged on the side wall of the accommodating groove 211, and one end of the straight groove 2131 is ventilated with the air hole 111. The lateral groove 2132 is opened on the inclined surface portion 23, and one end of the lateral groove 2132 is connected to the straight groove 2131, and the other end of the lateral groove 2132 is used for ventilation with the through hole 212. When the airtight portion 22 is mounted in the accommodating groove 211, the inclined surface portion 23 supports the airtight portion 22 to lift the airtight portion 22 away from the through hole 212, and at this time, both sides of the airtight portion 22 are ventilated through the air groove 213.

When a workpiece is placed on the jig body 10, part of the air holes 111 on the jig body 10 are blocked by the workpiece, and the rest of the air holes 111 are not blocked by the workpiece. For the air hole 111 blocked by the workpiece, the smaller end of the aperture of the air hole 111 is a closed space, when the vacuum air source starts sucking air, the air in the air cavity 30 and the through hole 212 is sucked out of the jig body 10, because the through hole 212 is ventilated through the air groove 213 and the smaller end of the aperture of the air hole 111, the air at the smaller end of the aperture of the air hole 111 is also sucked out of the jig body 10 at the same time, because the air at both sides of the airtight part 22 is sucked out at this time, no pressure difference exists at both sides of the airtight part 22, the airtight part 22 keeps the initial state and is not deformed, and the airtight part 20 is in the opened state, at this time, the workpiece is subjected to the adsorption force.

For the air hole 111 which is not blocked by the workpiece, the smaller end of the aperture of the air hole 111 is communicated with the external atmosphere, when the vacuum air source starts sucking air, the air in the air cavity 30 and the through hole 212 is sucked out of the jig body 10, because the smaller end of the aperture of the air hole 111 is communicated with the external atmosphere, the pressure at the smaller end of the aperture of the air hole 111 is higher than the pressure at the through hole 212, and because the pressure difference exists at two sides of the airtight part 22, the airtight part 22 deforms and blocks the through hole 212, and the airtight piece 20 is in a closed state. Since the airtight member 20 becomes a closed state, the air hole 111 and the air cavity 30 are isolated, so that the air hole 111 which is not blocked by the workpiece is not leaked, and the workpiece can be adsorbed and fixed on the jig body 10.

When the airtight body 21 is installed in the air hole 111, in order to avoid air leakage in the gap between the airtight body 21 and the wall of the air hole 111, the outer side of the airtight body 21 is provided with a ring groove 214, the adsorption jig 100 further includes a sealing element 40, the sealing element 40 is sleeved in the ring groove 214, and the sealing element 40 may be a rubber ring.

When the workpiece is adsorbed and fixed on the jig body 10, the workpiece can be machined, in order to avoid the fragments generated by machining from blocking the through hole 212, the adsorption jig 100 further comprises a filter member 50, the filter member 50 is arranged in the air hole 111 and is positioned at one end of the airtight main body 21, which is away from the air cavity 30, and two sides of the filter member 50 are respectively abutted with the airtight main body 21 and the first plate 11 in the jig body 10. The filter element 50 is sintered from copper, and the filter element 50 has a plurality of holes for ventilation, and the filter element 50 can block the chips to prevent the chips from entering the accommodating groove 211.

Referring to fig. 1, the adsorption fixture 100 further includes a detecting member 60, the detecting member 60 may be a pressure switch, the detecting member 60 is connected to the second plate 12 of the fixture body 10 and is communicated with the air cavity 30, and the detecting member 60 is used for detecting the pressure in the air cavity 30, so as to identify whether the air leakage and other phenomena occur in the fixture body 10.

The working process of the adsorption jig 100 provided in the embodiment of the application is approximately as follows:

when the workpiece is placed on the jig body 10, for the air hole 111 blocked by the workpiece, the smaller end of the aperture of the air hole 111 is a closed space, when the vacuum air source starts sucking air, the air at the air cavity 30, the through hole 212 and the smaller end of the aperture of the air hole 111 are simultaneously sucked out of the jig body 10, and because the air at both sides of the airtight part 22 is sucked out at this time, the pressure difference at both sides of the airtight part 22 is zero, the airtight part 22 is not deformed, and the airtight piece 20 is in an opened state; for the air hole 111 which is not blocked by the workpiece, the smaller end of the aperture of the air hole 111 is communicated with the external atmosphere, when the vacuum air source starts sucking air, the air in the air cavity 30 and the through hole 212 is sucked out of the jig body 10, because the smaller end of the aperture of the air hole 111 is communicated with the external atmosphere, the pressure at the smaller end of the aperture of the air hole 111 is higher than the pressure at the through hole 212, at this time, the pressure difference exists at two sides of the airtight part 22, the airtight part 22 deforms and blocks the through hole 212, and the airtight piece 20 is in a closed state. Since the airtight member 20 becomes the closed state, the air hole 111 not blocked by the workpiece is not leaked, so that the workpiece can be adsorbed and fixed on the jig body 10.

When the workpiece is machined, machining fluid and scraps are generated in the machining process, the machining fluid flows into the collecting groove 122 through the air holes 111 and the air cavities 30, the scraps are blocked outside the accommodating groove 211 by the filter 50, the scraps are positioned at the smaller end of the air holes 111, and when the scraps need to be cleaned, the scraps can be reversely ventilated to the air cavities 30, so that the scraps are blown out of the air holes 111.

It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Finally, it should be noted that the above embodiments are merely for illustrating the technical solution of the present application and not for limiting, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application.

Claims (10)

1. An adsorption jig, which is characterized by comprising:

the jig comprises a jig body, wherein a plurality of air holes are formed in the surface of the jig body at intervals, an air cavity is formed in the jig body, and the air cavity is communicated with the outside through the plurality of air holes;

the airtight pieces are in one-to-one correspondence with the air holes, each airtight piece comprises an airtight main body and an airtight part, each airtight main body is arranged in the corresponding air hole, one end of each airtight main body, which is far away from the air cavity, is provided with a containing groove, each airtight part is contained in each containing groove, each airtight main body is provided with a through hole and an air groove, each through hole penetrates through the bottom of each containing groove so as to enable the corresponding air cavity to be communicated with each containing groove, and each air groove is arranged on the wall of each containing groove and is ventilated with each through hole and each air hole;

when the air cavity is vacuumized, the airtight part in the air hole which is not covered by the workpiece is deformed to seal the through hole so that the air hole is isolated from the air cavity, and air in the air hole covered by the workpiece is pumped out through the air groove, the through hole and the air cavity to adsorb the workpiece.

2. The adsorption jig according to claim 1, wherein,

the airtight member further includes:

a slope part provided at a bottom of the accommodating groove, the slope part supporting the airtight part to lift the airtight part away from the through hole;

the air tank comprises:

the straight groove is arranged on the groove wall of the accommodating groove, and one end of the straight groove is ventilated with the air hole;

and the transverse groove is arranged on the inclined surface part, one end of the transverse groove is connected with the straight groove, and the other end of the transverse groove is ventilated with the through hole.

3. The adsorption jig according to claim 1, wherein,

the outer side of the airtight main body is provided with a ring groove;

the adsorption jig further comprises:

and the sealing piece is arranged in the annular groove and is used for sealing a gap between the airtight main body and the pore wall of the air hole.

4. The adsorption jig according to claim 1, wherein,

the adsorption jig further comprises:

the filter piece is arranged at one end of the airtight main body, which is away from the air cavity, two sides of the filter piece are respectively abutted to the jig body and the airtight main body, and the filter piece is used for blocking impurities from entering the accommodating groove.

5. The adsorption jig according to claim 1, wherein,

the jig body includes:

the air holes are formed in the first plate;

the second plate is arranged on one side of the first plate, a groove is formed in one side, facing the first plate, of the second plate, and the groove and the first plate enclose the air cavity;

the mounting plate is connected between the first plate and the second plate, the mounting plate is used for supporting the airtight piece so as to fix the airtight piece in the air holes, a plurality of communication holes arranged at intervals are formed in the mounting plate, and the communication holes are used for communicating the grooves and the through holes.

6. The adsorption jig according to claim 5, wherein,

the thickness of the bottom of the groove gradually decreases from the edge of the groove to the center of the groove.

7. The adsorption jig according to claim 6, wherein,

and the bottom wall of the groove is provided with a collecting groove which is used for collecting the processing liquid.

8. The adsorption jig according to claim 5, wherein,

a plurality of positioning holes are formed in one side, away from the second plate, of the first plate at intervals, and the positioning holes are formed in the air holes at intervals;

the tool body still includes:

the positioning pins are used for positioning the workpiece, the number of the positioning pins is smaller than that of the positioning holes, and the positioning pins are inserted into different positioning holes to adjust the positions of two adjacent positioning pins.

9. The adsorption jig according to claim 5, wherein,

the tool body still includes:

the sealing gasket is arranged on one side, deviating from the second plate, of the first plate, is used for supporting the workpiece and sealing a gap between the workpiece and the first plate, and is provided with a plurality of through holes arranged at intervals, and the through holes are in one-to-one correspondence with the air holes.

10. The adsorption jig according to claim 1, wherein,

the adsorption jig further comprises:

the detecting piece is connected with the jig body and used for detecting the pressure intensity in the air cavity.