CN213530372U

CN213530372U - Vacuum chuck positioning fixture

Info

Publication number: CN213530372U
Application number: CN202022219786.XU
Authority: CN
Inventors: 常利芳; 张洁
Original assignee: Shenzhen Changfeng Laser Knife Mould Co ltd
Current assignee: Shenzhen Changfeng Laser Knife Mould Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-25
Anticipated expiration: 2030-09-30

Abstract

The utility model belongs to the technical field of clamping device and specifically relates to a vacuum chuck positioning fixture is related to, it includes the bottom plate, the suction hole has been seted up on the bottom plate, the bottom plate one side is connected with the getter device with the suction hole intercommunication, and the another side is connected with the sealing layer, the sealing layer covers the suction hole, the sealing layer is kept away from bottom plate one side and is connected with the product. This application has the effect that reduces the sweeps and cause the influence to the product quality to can also process by the similar product of many money of clamping, improve the practicality of anchor clamps greatly.

Description

Vacuum chuck positioning fixture

Technical Field

The application relates to the field of clamping devices, in particular to a vacuum chuck positioning clamp.

Background

Most of electronic products use the die in the production process, and the die is used for processing the accessories of the electronic products in large batch so as to improve the production efficiency.

Taking a mold for producing a keyboard as an example, the mold comprises a plate, and a plurality of holes matched with the keys are formed in the plate. The holes in the die are machined by using a punch press or CNC: the die is clamped on the clamp of the punch, and the cutter head of the punch presses downwards on the die, so that a hole is punched.

One side of the existing clamp of the punch press is arranged on a machine tool, and the other side of the existing clamp is spliced with a group of mounting columns. Correspondingly, the die is provided with a mounting hole matched with the jack. After the mounting holes in the die are aligned with the mounting posts in the clamp, the mounting posts penetrate through the mounting holes, and the die can be clamped on the clamp.

The in-process of processing the hole on the mould can a lot of tiny sweeps certainly, because the mould only realizes fixing a position through erection column and mounting hole, when having the sweeps between mould and the anchor clamps, the sweeps is with mould jack-up, makes and can not have good, stable contact between mould and the anchor clamps for the easy slight downstream in place that the mould exists the sweeps when the tool bit punching press of punch press is on the mould, leads to the mould to dash out unqualified hole, thereby reduces the quality of mould.

In order to reduce the influence of the scraps on the quality of the mold, generally, an operator can clean the surface of the clamp before clamping the mold, but the scraps are more and thinner and are difficult to clean completely, so that certain inconvenience is brought to the operator.

In view of the above-mentioned related art, the inventor believes that there is a defect that the scraps are difficult to clean, thereby reducing the quality of the mold.

SUMMERY OF THE UTILITY MODEL

In order to reduce the influence that the sweeps caused to the mould quality, this application provides a vacuum chuck positioning fixture.

The application provides a vacuum chuck positioning fixture adopts following technical scheme:

the utility model provides a vacuum chuck positioning fixture, includes the bottom plate, the suction hole has been seted up on the bottom plate, the bottom plate one side is connected with the getter device with the suction hole intercommunication, and the another side is connected with the sealing layer, the sealing layer covers the suction hole, the sealing layer is kept away from the bottom plate one side and is connected with the product.

Through adopting above-mentioned technical scheme, through setting up the getter device in bottom plate one side, the another side sets up the sealing layer, when the getter device breathes in on the bottom plate, can hold the sealing layer through the suction hole to make the firm absorption of sealing layer on the bottom plate. The product is connected to the side, far away from the bottom plate, of the sealing layer, so that the product is indirectly fixed on the bottom plate through the sealing layer, and the product is clamped by the clamp. After a hole is punched in a product by a cutter head of the punch press, the sealing layer can be taken down from the bottom plate only by stopping the air suction of the air suction device on the bottom plate and losing the adsorption effect of the sealing layer on the bottom plate. Because the sweeps can drop on the sealing layer during the processing product, through changing another sealing layer and continuing the processing product after taking off the sealing layer, can take away the sweeps after the leakproofness is taken off to need not operating personnel and clear up the sweeps, have the effect that reduces the sweeps and cause the influence to the product quality.

Preferably, a ventilation groove is formed in one surface, connected with the sealing layer, of the bottom plate, and the ventilation groove is communicated with the air suction hole.

Through adopting above-mentioned technical scheme, the air channel has the effect of ventilating, and the air channel has increased the area that the air flows between bottom plate and sealing layer with the suction hole intercommunication back, has increased the area that the sealing layer received the adsorption affinity promptly for absorption that the sealing layer can be more firm on the bottom plate reduces the not hard up risk that leads to the product to remove of sealing layer.

Preferably, a fastening piece is arranged on the bottom plate, and the fastening piece is connected to the bottom plate and the sealing layer.

Through adopting above-mentioned technical scheme, the fastener is connected in bottom plate and sealing layer, further is connected bottom plate and sealing layer to the stability of sealing layer and product has further been improved.

Preferably, a fixing part is arranged at the joint of the bottom plate and the air suction device.

Through adopting above-mentioned technical scheme, the mounting can strengthen being connected between bottom plate and the getter device, makes the connection that the bottom plate can be inseparabler on the getter device, reduces the emergence of the gas leakage condition to indirect improvement the stability of product.

Preferably, one side of the bottom plate, which is connected with the sealing layer, is provided with a positioning pin which can penetrate through a mounting hole in a product.

Through adopting above-mentioned technical scheme, the locating pin has the effect of location, and behind the mounting hole alignment locating pin on with the product, make the locating pin pass the mounting hole, can fix the product on the specific position of bottom plate according to the demand promptly.

Preferably, one side of the bottom plate, which is connected with the sealing layer, is provided with a positioning hole, and the positioning pin is inserted into the positioning hole.

Through adopting above-mentioned technical scheme, the locating pin passes through the locating hole and can dismantle to be connected in the locating hole. The locating pin passes the mounting hole on the product and is fixed a position and process on the bottom plate, dismantles the locating pin from the bottom plate this moment, helps reducing the interference of locating pin to the activity of tool bit on the punching machine to be favorable to more accurate punching a hole of tool bit.

Preferably, the positioning holes are provided with a plurality of groups.

By adopting the technical scheme, the bottom plate can clamp multiple similar products for processing by arranging the multiple groups of positioning pins, and the practicability of the clamp is greatly improved.

Preferably, the edge of the opening of the positioning hole is chamfered.

By adopting the technical scheme, the edge of the opening of the positioning hole is chamfered, so that the occupied space of the edge of the opening of the positioning hole is reduced, namely, the movable space of the positioning pin inserted into one end of the positioning hole is enlarged, and the positioning pin can be conveniently and quickly inserted into the positioning hole.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through set up the getter device in bottom plate one side, the another side sets up the sealing layer, when the getter device breathes in on the bottom plate, can hold the sealing layer through the suction hole to make the firm absorption of sealing layer on the bottom plate. The product is connected to the side, far away from the bottom plate, of the sealing layer, so that the product is indirectly fixed on the bottom plate through the sealing layer, and the product is clamped by the clamp. After a hole is punched in a product by a cutter head of the punch press, the sealing layer can be taken down from the bottom plate only by stopping the air suction of the air suction device on the bottom plate and losing the adsorption effect of the sealing layer on the bottom plate. Because the sweeps can drop on the sealing layer during the processing product, through changing another sealing layer and continuing the processing product after taking off the sealing layer, can take away the sweeps after the leakproofness is taken off to need not operating personnel and clear up the sweeps, have the effect that reduces the sweeps and cause the influence to the product quality.

2. Through setting up air channel, fastener and mounting, make between getter device and the bottom plate, can inseparabler be connected between bottom plate and the sealing layer, reach the purpose that improves product stability.

3. Through setting up the multiunit locating pin, the locating pin has the effect of location, not only can install the product on the specific position of bottom plate according to the demand, can also make the bottom plate can process by the similar product of clamping many types, has improved anchor clamps's practicality greatly.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a vacuum chuck positioning fixture according to an embodiment of the present application;

FIG. 2 is a schematic view of the structure of the side of the base plate connected to the suction unit;

FIG. 3 is a schematic structural view for embodying the sealing layer and the fastener;

fig. 4 is a schematic view of a structure of one side of the backplane connecting the sealing layer.

Description of reference numerals: 1. a base plate; 11. a gas transmission groove; 111. a long-direction gas transmission groove; 112. a wide-direction gas transmission groove; 12. a suction hole; 13. a vent channel; 131. a longitudinal vent groove; 132. a widthwise vent groove; 14. positioning holes; 2. a suction device; 21. a suction cup; 22. a controller; 3. a sealing layer; 4. a fastener; 5. a fixing member; 6. and a positioning pin.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses vacuum chuck positioning fixture. Referring to fig. 1, the vacuum chuck positioning fixture comprises a base plate 1, wherein a suction device 2 and a sealing layer 3 are connected to the base plate 1, and a product is fixed on the base plate 1 through the suction device 2 and the sealing layer 3.

Referring to fig. 1, a bottom plate 1 is an aluminum plate, the whole bottom plate 1 is a rectangular parallelepiped, one of the largest side surfaces of the bottom plate 1 is connected to an air suction device 2, and the other largest side surface of the bottom plate 1 is connected to a sealing layer 3.

Referring to fig. 2, an air conveying groove 11 is formed in one surface of the bottom plate 1, which is connected to the air suction device 2 (see fig. 1), and the air conveying groove 11 includes three longitudinal air conveying grooves 111 and nine width air conveying grooves 112. The longitudinal direction of the longitudinal air transfer groove 111 is the same as the longitudinal direction of the base plate 1, and both ends of the longitudinal air transfer groove 111 extend to both ends of the base plate 1 in the longitudinal direction, respectively. The three longitudinal gas transmission grooves 111 are distributed at equal intervals along the width direction of the base plate 1.

The length direction of the wide air duct 112 is the same as the width direction of the base plate 1, and both ends of the wide air duct 112 extend to both ends of the base plate 1 in the width direction. Every three wide air transmission slots 112 form a group, and the three groups of wide air transmission slots 112 are distributed at equal intervals along the length direction of the bottom plate 1. Three wide air transmission grooves 112 of each group of wide air transmission grooves 112 are also distributed at equal intervals along the width direction of the bottom plate 1. Wherein, the distance between two adjacent groups of wide air transmission slots 112 is greater than the distance between two adjacent wide air transmission slots 112 of the same group. Each wide-direction gas transmission groove 112 is communicated with the three long-direction gas transmission grooves 111, and an uneven grid-shaped structure is formed between the wide-direction gas transmission grooves 112 and the long-direction gas transmission grooves 111.

A plurality of air suction holes 12 are formed in the bottom plate 1, the air suction holes 12 are through holes, and the air suction holes 12 penetrate through the two side faces of the bottom plate 1 with the largest area. The plurality of air suction holes 12 are divided into nine groups, the nine groups of air suction holes 12 correspond to the nine width-direction air transmission grooves 112 one by one, and the air suction holes 12 are communicated with the corresponding width-direction air transmission grooves 112 and distributed along the length direction of the width-direction air transmission grooves 112.

Referring to fig. 1, the sealing layer 3 is a paper having only one side with adhesive and the non-adhesive side of the sealing layer 3 is attached to the side of the chassis 1. As shown in fig. 3, the side surface of the sealing layer 3 is rectangular, the longitudinal direction of the sealing layer 3 is the same as the longitudinal direction of the base plate 1, and the four edges of the sealing layer 3 extend to the four edges of the base plate 1, respectively, so that the sealing layer 3 covers all the suction holes 12 (see fig. 2). The product can be placed on the sticky side of the sealing layer 3, so that the product is stuck on the sealing layer 3 through the sticky property, and the product is connected with the sealing layer 3.

Referring to fig. 1, the suction device 2 is a commercially available CNC vacuum chuck, the suction device 2 includes a suction cup 21 and a controller 22 connected to the suction cup 21, the suction cup 21 is mounted on the machine tool, and a side of the suction cup 21 away from the machine tool is connected to a side surface of the base plate 1, communicates with the suction hole 12 (see fig. 2), and covers the suction hole 12. The suction cup 21 is used in cooperation with the base plate 1, and when the controller 22 is connected with an air compressor, the controller 22 controls the suction cup 21 to suck air on the base plate 1.

Referring to fig. 1 and 2, when punching a hole on a product, the product is bonded on the sealing layer 3, so that the air suction device 2 sucks air on the bottom plate 1, and the suction disc 21 can suck the sealing layer 3 through the air suction hole 12, so that the sealing layer 3 is stably adsorbed on the bottom plate 1, the product is indirectly fixed on the bottom plate 1 through the sealing layer 3, and a tool bit of the punch press can process the product. After a hole is punched in a product by a cutter head of the punch press, the sealing layer 3 can be taken down from the bottom plate 1 only by stopping the air suction of the air suction device 2 on the bottom plate 1 and losing the adsorption effect of the sealing layer 3 on the bottom plate 1. Because the sweeps can drop on sealing layer 3 during the processing product, through changing another sealing layer 3 and continuing the processing product after taking off sealing layer 3, can take away the sweeps after sealing layer 3 takes off to need not operating personnel and clear up the sweeps, have the effect that reduces the sweeps and cause the influence to the product quality.

Referring to fig. 4, a vent groove 13 is further formed on one surface of the bottom plate 1 connected to the sealing layer 3 (see fig. 3), and the vent groove 13 includes a plurality of longitudinal vent grooves 131 and a plurality of width vent grooves 132 that are connected to each other. The longitudinal direction of the longitudinal ventilation grooves 131 is the same as the longitudinal direction of the bottom plate 1, the longitudinal direction of the lateral ventilation grooves 132 is the same as the width direction of the bottom plate 1, and a substantially grid-like structure is formed between the longitudinal ventilation grooves 131 and the lateral ventilation grooves 132.

Referring to fig. 2 and 4, the suction hole 12 communicates with the vent groove 13, the suction hole 12 communicates with the longitudinal vent groove 131 and the lateral vent groove 132, and the suction hole 12 communicates with the vent groove 13, that is, the air transfer groove 11, the suction hole 12, and the vent groove 13 communicate with each other.

Referring to fig. 2 and 4, the air delivery groove 11, the air suction hole 12 and the air channel 13 are communicated with each other, so that when the air suction device 2 (see fig. 1) sucks air, air flow can be drawn out after flowing through the air suction hole 12 and the air delivery groove 11 from the air channel 13. Because gas transmission groove 11 has the effect of defeated gas, has increased the area that the air flows between bottom plate 1 and sealing layer 3, has increased the area that sealing layer 3 received the adsorption affinity promptly for sealing layer 3 can be more firm adsorbs on bottom plate 1, reduces the not hard up risk that leads to the product to remove of sealing layer 3.

Referring to fig. 3, in order to enable the sealing layer 3 to be more stably attached and adsorbed on the bottom plate 1, four fastening members 4 are arranged on the bottom plate 1, the fastening members 4 are adhesive tapes, and the fastening members 4 have adhesiveness. Four fasteners 4 set up respectively at the four sides edge of bottom plate 1, and fastener 4 one side bonds in bottom plate 1, and the other side bonds in sealing layer 3, further is connected bottom plate 1 with sealing layer 3 to make the stability of sealing layer 3 and product higher.

Referring to fig. 1, furtherly, sucking disc 21 and bottom plate 1 junction, the bottom plate 1 is connected sucking disc 21 one side four sides edge and all is provided with mounting 5 promptly, and mounting 5 is glue, and mounting 5 seals sucking disc 21 and bottom plate 1 junction, has strengthened being connected between bottom plate 1 and the sucking disc 21, makes the connection that bottom plate 1 can be inseparabler on getter device 2, reduces the emergence of the gas leakage condition to indirect further improved the stability of product.

In this embodiment, the fastening member 4 is a textured paper, the fixing member 5 is glue, in other embodiments, the fastening member 4 may also be a gummed paper or a paper coated with glue, and the fixing member 5 may also be a gummed paper or a textured paper, as long as the bottom plate 1 can be connected with the sealing layer 3 and the bottom plate 1 can be connected with the suction cup 21 in principle.

Usually, the suction cup 21 is fixed on the machine tool, and when the position of the suction cup 21 is not changed, that is, the positions of the bottom plate 1 and the sealing layer 3 are not changed, in order to enable the cutter head to accurately punch holes on the product, the position of the product adhered on the sealing layer 3 should be kept unchanged, and for this, the positioning pin 6 is detachably connected on the bottom plate 1.

Referring to fig. 4, a plurality of groups of positioning holes 14 are formed in one surface of the bottom plate 1, which is connected to the sealing layer 3 (see fig. 1), each group of positioning holes 14 includes three positioning holes 14, the three positioning holes 14 are respectively formed in the end portions of the two ends of the bottom plate 1 and the middle portion of one side of the bottom plate 1, and the plurality of positioning holes 14 of each group of positioning holes 14 in the same portion of the bottom plate 1 are arranged close to each. The number of the positioning pins 6 is three, and the three positioning pins 6 are respectively inserted into the end parts of the two ends of the bottom plate 1 and the middle part of one side of the bottom plate 1. Preferably, the opening edge of the positioning hole 14 is chamfered so that the positioning pin 6 can be inserted into the positioning hole 14 more conveniently and quickly.

Referring to fig. 3, after the mounting holes are formed in the corresponding positions of the product, when the product is adhered to the sealing layer 3, the mounting holes can be communicated with any one group of positioning holes 14, and at this time, the positioning pins 6 penetrate through the mounting holes, penetrate through the sealing layer 3 and are inserted into the positioning holes 14, so that the product can be positioned, and can be fixed on the specific positions of the bottom plate 1 as required, and the position accuracy is maintained. In addition, when the positions of the mounting holes are different on the product, the positioning pins 6 can be inserted into different positioning holes 14 at the same position of the bottom plate 1, namely, the bottom plate 1 can clamp a plurality of similar products for processing, and the practicability of the clamp is greatly improved. In addition, because the positioning hole 14 is detachably connected with the positioning pin 6, after the product is positioned on the bottom plate 1, the positioning pin 6 is used for playing a role, the product is stably adhered to the sealing layer 3, the positioning pin 6 can be detached from the bottom plate 1 at the moment, the interference of the positioning pin 6 on the movement of a tool bit on a punching machine is reduced, and the more accurate punching of the tool bit is facilitated.

The implementation principle of the positioning clamp of the vacuum chuck 21 in the embodiment of the application is as follows: when punching a hole on the product, bond the product on sealing layer 3 to fix a position on bottom plate 1 through locating pin 6, make getter device 2 inhale on bottom plate 1, hold sealing layer 3, then take off locating pin 6, can process the product. When the tool bit of the punching machine punches a hole in the product, the suction device 2 stops sucking the sealing layer 3 on the base plate 1, and the sealing layer 3 can be removed from the base plate 1. Can take away the sweeps after sealing layer 3 takes off to need not operating personnel and clear up the sweeps, have the effect that reduces the sweeps and cause the influence to the product quality.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a vacuum chuck positioning fixture which characterized in that: including bottom plate (1), suction hole (12) have been seted up on bottom plate (1), bottom plate (1) one side is connected with getter device (2) with suction hole (12) intercommunication, and the another side is connected with sealing layer (3), sealing layer (3) cover suction hole (12), bottom plate (1) one side is kept away from in sealing layer (3) is connected with the product.

2. A vacuum chuck positioning jig according to claim 1 wherein: and a ventilation groove (13) is formed in one surface, connected with the sealing layer (3), of the bottom plate (1), and the ventilation groove (13) is communicated with the air suction hole (12).

3. A vacuum chuck positioning jig according to claim 2 wherein: the sealing structure is characterized in that a fastening piece (4) is arranged on the bottom plate (1), and the fastening piece (4) is connected to the bottom plate (1) and connected to the sealing layer (3).

4. A vacuum chuck positioning jig according to claim 1 wherein: and a fixing piece (5) is arranged at the joint of the bottom plate (1) and the air suction device (2).

5. A vacuum chuck positioning jig according to claim 1 wherein: and one surface of the bottom plate (1) connected with the sealing layer (3) is provided with a positioning pin (6) capable of penetrating through a mounting hole in a product.

6. The vacuum chuck positioning jig of claim 5, wherein: one side of the bottom plate (1) connected with the sealing layer (3) is provided with a positioning hole (14), and the positioning pin (6) is inserted into the positioning hole (14).

7. The vacuum chuck positioning jig of claim 6, wherein: the positioning holes (14) are provided with a plurality of groups.

8. The vacuum chuck positioning jig of claim 6, wherein: and the opening edge of the positioning hole (14) is chamfered.