CN114682435A - Dispensing device for precision parts - Google Patents
Dispensing device for precision parts Download PDFInfo
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- CN114682435A CN114682435A CN202011583221.8A CN202011583221A CN114682435A CN 114682435 A CN114682435 A CN 114682435A CN 202011583221 A CN202011583221 A CN 202011583221A CN 114682435 A CN114682435 A CN 114682435A
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- Prior art keywords
- door
- strip
- door frame
- vacuum
- door body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a dispensing device for precision parts, which comprises a vacuum chamber body, a rack, a dispensing valve and a workbench, wherein the vacuum chamber body is arranged on the rack, an air exhaust opening is formed in the outer surface of one side of the vacuum chamber body, a flange part extending inwards in the radial direction is arranged on the inner wall of one end, close to the inner part of the vacuum chamber body, of the air exhaust opening, a first flange plate is embedded into the air exhaust opening, a door opening is formed in the vacuum chamber body, a sealing ring is arranged at the peripheral edge of the door opening, a movable door body is arranged on the front side of the door opening, door frames are respectively arranged on the left side and the right side of the door body, a linear guide rail is respectively arranged on the vacuum chamber body on the left side and the right side of the door opening, and two door frames are respectively connected with the corresponding linear guide rail through one of each door frame, so that the door bodies can move up and down along the vertical direction. The invention can avoid the position deviation between the door body and the sealing ring caused by the left-right shaking of the door body in the moving process, and ensure the stability of the sealing performance in the vacuum cabin body when the door body is in a closed state.
Description
Technical Field
The invention relates to the technical field of vacuum cavity sealing, in particular to a dispensing device for precision parts.
Background
The vacuum cavity is mainly applied to the product point and glues and the encapsulation field, utilizes the effort of negative pressure, takes away the air in the vacuum box earlier at the in-process that fills, carries out the product again and fills, can permeate glue inside the product fast, fills and assaults and glue and also can take away fast with the bubble that the product contact produced under the negative pressure to guarantee the high performance of product. In the prior art, when the cavity is vacuumized, the vacuum value in the cavity is unstable due to the fact that the pressure difference between the air pressure in the cavity and the external air pressure is large and the valve is delayed when being closed. And the adsorption force generated by the larger internal and external pressure difference has higher output power requirement on the closing mechanism of the valve, and the valve opening and closing mechanism with larger kinetic energy can impact the cavity, so that the service life of the valve is shortened.
Disclosure of Invention
The invention aims to provide a dispensing device for precision parts, which can prevent a door body from shaking left and right in the moving process to cause the position deviation between the door body and a sealing ring, and ensure the stability of the sealing performance in a vacuum chamber when the door body is in a closed state.
In order to achieve the purpose, the invention adopts the technical scheme that: a dispensing device for precision parts comprises a vacuum bin body, a rack, a dispensing valve and a workbench, wherein the vacuum bin body is arranged on the rack, the dispensing valve and the workbench are both positioned in the vacuum bin body, and the dispensing valve is positioned right above the workbench;
an air exhaust hole is formed in the outer surface of one side of the vacuum chamber body, a flange part which extends inwards in the radial direction is arranged on the inner wall of one end, close to the inside of the vacuum chamber body, of the air exhaust hole, a first flange plate is embedded into the air exhaust hole, the end face of one end of the first flange plate is in surface contact with the end face of the corresponding flange part, and the other end of the first flange plate is connected with a piston rod of a first air cylinder which is correspondingly arranged;
the vacuum pump is characterized in that a connecting seat is mounted on the air exhaust opening, one end face of the connecting seat is connected with the vacuum chamber body, a first air cylinder is mounted on the other end face of the connecting seat, a piston rod of the first air cylinder is connected with a first flange plate through a first spindle, a first through hole communicated with the air exhaust opening is formed in the connecting seat along the direction of the first spindle, the first spindle is telescopically arranged in the first through hole, an air exhaust hole communicated with the first through hole is further formed in the connecting seat, and the air exhaust hole is used for being connected with a vacuum pump;
the first mandrel is sleeved with an elastic piece, one end of the elastic piece, close to the first flange plate, is in contact with an outer flange part positioned at the tail end of the first mandrel, and the other end of the elastic piece is connected with a shell of the first cylinder in an extrusion manner;
a cushion block is arranged between the first air cylinder and the connecting seat, the other end of the elastic piece is connected with the cushion block in an extrusion manner, a second through hole through which a piston rod and a first mandrel of the first air cylinder can penetrate is formed in the center of the cushion block, and an air outlet hole communicated with the second through hole is formed in the outer end face of the cushion block;
the vacuum bin body is provided with a door opening, the edges around the door opening are provided with a sealing ring, the front side of the door opening is provided with a movable door body, the left side and the right side of the door body are respectively provided with a door frame, the vacuum bin bodies positioned on the left side and the right side of the door opening are respectively provided with a linear guide rail, and the two door frames are respectively connected with the corresponding linear guide rails through a sliding block, so that the door body can move up and down along the vertical direction;
a guide strip is arranged between the linear guide rail and the door frame, at least one rotatable guide bearing is arranged on the side end face of the door frame, and when the door body moves up and down along the vertical direction, the guide bearing moving up and down along with the door frame rolls on the front surface of the guide strip;
at least two rotatable rollers are arranged between the side end face of the guide strip close to the door frame and the corresponding door frame, the rollers are arranged at intervals along the motion direction of the door body, and when the door frame moves up and down along with the door body, the side end face of the guide strip is in rolling connection with the corresponding door frame through the rollers;
the front surface of the guide strip is provided with a groove corresponding to the guide bearing, the sliding block is connected with the door frame through a connecting block and a pin shaft, one end of the connecting block is connected with the sliding block, the side end face of the other end of the connecting block is provided with an obliquely arranged strip-shaped groove, one end of the pin shaft is fixedly connected with the door frame, and the other end of the pin shaft is movably embedded into the strip-shaped groove;
when the door body is in a closed state, the guide bearing is embedded into the corresponding groove and forms a gap with the bottom surface of the groove, a gap is formed between the pin shaft positioned in the strip-shaped groove and one end, close to the sealing ring, of the strip-shaped groove, and the door body is in extrusion contact with the sealing ring;
when the door body is in an open state, the guide bearing rolls out of the corresponding groove, the pin shaft in the strip-shaped groove moves towards one end, away from the sealing ring, of the strip-shaped groove, and the door body and the sealing ring are arranged at intervals.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, the cushion block comprises a main body part close to the first cylinder and a protruding part embedded in the first through hole.
2. In the above scheme, the elastic member is a bellows-shaped elastic member.
3. In the scheme, a supporting gasket is arranged between the shell of the first cylinder and the elastic piece, and the supporting gasket is sleeved on the first mandrel and is in extrusion contact with the end face of the elastic piece.
4. In the scheme, one ends of the air pumping hole and the air inlet close to the interior of the vacuum cabin body are provided with arc-shaped chamfers.
5. In the scheme, the cylinder is arranged on the vacuum cabin body and below the sliding block.
6. In the above scheme, the recess includes plane depressed part and connects respectively in the arc connecting portion at plane depressed part both ends, the one end that plane depressed part was kept away from to the arc connecting portion is located the coplanar with the front surface of gib block.
7. In the scheme, an included angle formed between the inclination direction of the strip-shaped groove and the movement direction of the door body is 30-60 degrees.
8. In the above scheme, 2 rollers are installed in the installation groove on the door frame at intervals, and the circumferential surface of each roller extends out of the installation groove and is in contact connection with the side end surface of the guide strip.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the invention relates to a dispensing device for precision parts, wherein a piston rod of an air cylinder is connected with a first flange plate through a mandrel, a through hole communicated with an air exhaust port is formed in a connecting seat along the direction of the mandrel, the mandrel is telescopically arranged in the through hole, an elastic piece is sleeved on the mandrel, one end of the elastic piece close to the first flange plate is contacted with an outer flange part positioned on the tail end of the mandrel, the other end of the elastic piece is connected with a shell of the air cylinder in an extrusion manner, force can be superposed and applied to the first flange plate when the first flange plate is closed through the arrangement of the elastic piece, the sealing property of the first flange plate to the air exhaust port in the long-term use process is improved, the first flange plate can be prevented from impacting due to too fast contraction in the opening process, and the service life of a mechanism is prolonged.
2. According to the dispensing device for the precision parts, disclosed by the invention, the cushion block is arranged between the first air cylinder and the connecting seat, the other end of the elastic piece is connected with the cushion block in an extrusion manner, the center of the cushion block is provided with the second through hole for the piston rod of the first air cylinder and the first mandrel to penetrate through, and the outer end surface of the cushion block is provided with the air outlet hole communicated with the second through hole, so that the piston rod of the air cylinder can be ensured to always keep constant driving force in the long-term reciprocating motion process, and the condition that the flange plate cannot be driven to tightly seal the air suction opening due to air blocking can be avoided.
3. According to the dispensing device for the precision parts, the guide bearing and the groove are arranged in a matched manner, and the pin shaft and the strip-shaped groove are arranged in a matched manner, so that a tangential force is provided by the pin shaft in the closing process of the door body, the guide bearing is embedded into the groove, and meanwhile, the door body extrudes the sealing ring, so that on the basis of space saving and convenience in opening and closing, the sealing property in the vacuum bin body when the door body is in a closed state is ensured, the abrasion of the sealing ring in the opening and closing process of the door body can be avoided, and the damage of instant pressure relief to the sealing ring can be avoided when the door body is opened, so that the stability of the sealing property of the vacuum bin body in the long-term use process is ensured; furthermore, the gaps between the guide bearing and the groove and between the pin shaft and the strip-shaped groove are arranged, so that a telescopic space is provided, when the vacuum bin body is vacuumized, negative pressure can be prevented from being transferred to the pin shaft to damage the pin shaft, the door body can be enabled to compress the sealing ring under the action of the negative pressure, and the sealing performance is improved; in addition, its gyro wheel and the cooperation of direction bearing through the side direction setting provide three-dimensional direction for reciprocating of the door body, avoid the door body to take place to rock about at the removal in-process and lead to the skew of position between the door body and the sealing washer, further guarantee the stability of the internal sealing performance of vacuum chamber when the door body is in the closed condition.
Drawings
FIG. 1 is a schematic structural view of a dispensing device for precision parts according to the present invention;
FIG. 2 is a schematic view of the internal structure of a vacuum chamber of the dispensing device for precision parts according to the present invention;
FIG. 3 is a schematic view of a partial cross-sectional structure of a dispensing device for precision parts according to the present invention;
FIG. 4 is a first schematic structural diagram of a cushion block in the dispensing device for precision parts according to the present invention;
FIG. 5 is a second schematic view of a pad of the dispensing device for precision parts according to the present invention;
FIG. 6 is a schematic view of the structure of a door opening and a sealing ring of the dispensing device for precision parts according to the present invention;
FIG. 7 is a schematic view of the structure of a guide strip and a roller of the dispensing device for precision parts according to the present invention;
FIG. 8 is a schematic structural view of a door module of the dispensing device for precision parts according to the present invention;
fig. 9 is a schematic view of a local structure of a door body module of the dispensing device for precision parts according to the present invention.
In the above drawings: 1. a vacuum bin body; 2. an air extraction opening; 4. a flange portion; 5. a first flange plate; 7. a first cylinder; 9. a connecting seat; 10. a first mandrel; 101. an outer flange portion; 11. a first through hole; 12. an air exhaust hole; 14. an elastic member; 15. a support washer; 16. a frame; 17. dispensing a glue valve; 18. a work table; 31. cushion blocks; 311. a main body portion; 312. a boss portion; 32. a second through hole; 33. an air outlet; 35. a door opening; 36. a seal ring; 37. a door body; 38. a door frame; 39. a linear guide rail; 40. a slider; 41. a cylinder; 42. a guide bar; 43. a guide bearing; 44. a groove; 441. a planar depression; 442. an arc-shaped connecting part; 45. connecting blocks; 46. a pin shaft; 47. a strip-shaped groove; 48. and a roller.
Detailed Description
In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.
Example 1: a dispensing device for precision parts comprises a vacuum bin body 1, a rack 16, a dispensing valve 17 and a workbench 18, wherein the vacuum bin body 1 is installed on the rack 16, the dispensing valve 17 and the workbench 18 are both positioned in the vacuum bin body 1, and the dispensing valve 17 is positioned right above the workbench 18;
an air exhaust port 2 is formed in the outer surface of one side of the vacuum cabin body 1, a flange part 4 extending inwards in the radial direction is arranged on the inner wall of one end, close to the inside of the vacuum cabin body 1, of the air exhaust port 2, a first flange plate 5 is embedded into the air exhaust port 2, the end face of one end of the first flange plate 5 is in surface contact with the end face of the corresponding flange part 4, and the other end of the first flange plate 5 is connected with a piston rod of a first air cylinder 7 correspondingly arranged;
a connecting seat 9 is installed on the air suction port 2, one end face of the connecting seat 9 is connected with the vacuum chamber body 1, the first air cylinder 7 is installed on the other end face of the connecting seat 9, a piston rod of the first air cylinder 7 is connected with the first flange 5 through a first mandrel 10, a first through hole 11 communicated with the air suction port 2 is formed in the connecting seat 9 along the direction of the first mandrel 10, the first mandrel 10 is telescopically arranged in the first through hole 11, an air suction hole 12 communicated with the first through hole 11 is further formed in the connecting seat 9, and the air suction hole 12 is used for being connected with a vacuum pump;
an elastic part 14 is sleeved on the first mandrel 10, one end of the elastic part 14 close to the first flange plate 5 is in contact with an outer flange part 101 positioned on the tail end of the first mandrel 10, and the other end of the elastic part 14 is connected with the shell of the first cylinder 7 in a squeezing mode;
a cushion block 31 is arranged between the first cylinder 7 and the connecting seat 9, the other end of the elastic element 14 is connected with the cushion block 31 in an extruding manner, a second through hole 32 through which a piston rod of the first cylinder 7 and the first mandrel 10 can penetrate is formed in the center of the cushion block 31, and an air outlet 33 communicated with the second through hole 32 is formed in the outer end face of the cushion block 31;
the vacuum bin body 1 is provided with a door opening 35, the peripheral edges of the door opening 35 are provided with a sealing ring 36, the front side of the door opening 35 is provided with a movable door body 37, the left side and the right side of the door body 37 are respectively provided with a door frame 38, the vacuum bin bodies 1 positioned on the left side and the right side of the door opening 35 are respectively provided with a linear guide rail 39, and the two door frames 38 are respectively connected with the corresponding linear guide rails 39 through a sliding block 40, so that the door body 37 can vertically move up and down;
a guide bar 42 is installed between the linear guide rail 39 and the door frame 38, at least one rotatable guide bearing 43 is installed on the side end surface of the door frame 38, and when the door body 37 moves up and down along the vertical direction, the guide bearing 43 moving up and down along with the door frame 38 rolls on the front surface of the guide bar 42;
two rotatable rollers 48 are arranged between the side end face of the guide strip 42 close to the door frame 38 and the corresponding door frame 38, the rollers 48 are arranged at intervals along the movement direction of the door body 37, and when the door frame 38 moves up and down along with the door body 37, the side end face of the guide strip 42 is in rolling connection with the corresponding door frame 38 through the rollers 48;
a groove 44 corresponding to the guide bearing 43 is formed in the front surface of the guide strip 42, the sliding block 40 is connected with the door frame 38 through a connecting block 45 and a pin shaft 46, one end of the connecting block 45 is connected with the sliding block 40, a side end face of the other end of the connecting block 45 is provided with an obliquely arranged strip-shaped groove 47, one end of the pin shaft 46 is fixedly connected with the door frame 38, and the other end of the pin shaft 46 is movably embedded into the strip-shaped groove 47;
when the door body 37 is in a closed state, the guide bearing 43 is embedded into the corresponding groove 44 and forms a gap with the bottom surface of the groove 44, a gap is formed between the pin shaft 46 positioned in the strip-shaped groove 47 and one end of the strip-shaped groove 47, which is close to the sealing ring 36, and the door body 37 is in extrusion contact with the sealing ring 36;
when the door body 37 is in an open state, the guide bearings 43 roll out from the corresponding grooves 44, the pin shaft 46 located in the strip-shaped groove 47 moves towards one end, far away from the sealing ring 36, of the strip-shaped groove 47, and the door body 37 and the sealing ring 36 are arranged at intervals.
The spacer 31 includes a main body 311 adjacent to the first cylinder 7 and a boss 312 fitted into the first through hole 11.
The elastic member 14 is a bellows-shaped elastic member.
A support gasket 15 is arranged between the shell of the first cylinder 7 and the elastic element 14, and the support gasket 15 is sleeved on the first mandrel 10 and is in pressing contact with the end face of the elastic element 14.
The inclined direction of the strip-shaped groove 47 forms an angle of 30 ° with the moving direction of the door body 37.
2 rollers 48 are installed in the installation groove of the door frame 38 at intervals, and the circumferential surface of each roller 48 extends out of the installation groove and is in contact connection with the side end surface of the guide strip 42
Example 2: a dispensing device for precision parts comprises a vacuum bin body 1, a rack 16, a dispensing valve 17 and a workbench 18, wherein the vacuum bin body 1 is installed on the rack 16, the dispensing valve 17 and the workbench 18 are both positioned in the vacuum bin body 1, and the dispensing valve 17 is positioned right above the workbench 18;
an air exhaust port 2 is formed in the outer surface of one side of the vacuum cabin body 1, a flange part 4 extending inwards in the radial direction is arranged on the inner wall of one end, close to the inside of the vacuum cabin body 1, of the air exhaust port 2, a first flange plate 5 is embedded into the air exhaust port 2, the end face of one end of the first flange plate 5 is in surface contact with the end face of the corresponding flange part 4, and the other end of the first flange plate 5 is connected with a piston rod of a first air cylinder 7 correspondingly arranged;
a connecting seat 9 is installed on the air suction port 2, one end face of the connecting seat 9 is connected with the vacuum chamber body 1, the first air cylinder 7 is installed on the other end face of the connecting seat 9, a piston rod of the first air cylinder 7 is connected with the first flange 5 through a first mandrel 10, a first through hole 11 communicated with the air suction port 2 is formed in the connecting seat 9 along the direction of the first mandrel 10, the first mandrel 10 is telescopically arranged in the first through hole 11, an air suction hole 12 communicated with the first through hole 11 is further formed in the connecting seat 9, and the air suction hole 12 is used for being connected with a vacuum pump;
the first mandrel 10 is sleeved with an elastic part 14, one end of the elastic part 14 close to the first flange plate 5 is in contact with an outer flange part 101 at the tail end of the first mandrel 10, and the other end of the elastic part 14 is connected with the shell of the first cylinder 7 in a pressing mode;
a cushion block 31 is arranged between the first cylinder 7 and the connecting seat 9, the other end of the elastic element 14 is connected with the cushion block 31 in an extruding manner, a second through hole 32 through which a piston rod of the first cylinder 7 and the first mandrel 10 can penetrate is formed in the center of the cushion block 31, and an air outlet 33 communicated with the second through hole 32 is formed in the outer end face of the cushion block 31;
the vacuum cabin body 1 is provided with a door opening 35, the edges around the door opening 35 are provided with a sealing ring 36, the front side of the door opening 35 is provided with a movable door body 37, the left side and the right side of the door body 37 are respectively provided with a door frame 38, the vacuum cabin body 1 positioned on the left side and the right side of the door opening 35 are respectively provided with a linear guide rail 39, and the two door frames 38 are respectively connected with the corresponding linear guide rails 39 through a sliding block 40, so that the door body 37 can vertically move up and down;
a guide strip 42 is installed between the linear guide rail 39 and the door frame 38, at least one rotatable guide bearing 43 is installed on the side end face of the door frame 38, and when the door body 37 moves up and down along the vertical direction, the guide bearing 43 moving up and down along with the door frame 38 rolls on the front surface of the guide strip 42;
at least two rotatable rollers 48 are arranged between the side end face of the guide strip 42 close to the door frame 38 and the corresponding door frame 38, the rollers 48 are arranged at intervals along the movement direction of the door body 37, and when the door frame 38 moves up and down along with the door body 37, the side end face of the guide strip 42 is in rolling connection with the corresponding door frame 38 through the rollers 48;
a groove 44 corresponding to the guide bearing 43 is formed in the front surface of the guide strip 42, the sliding block 40 is connected with the door frame 38 through a connecting block 45 and a pin shaft 46, one end of the connecting block 45 is connected with the sliding block 40, a side end face of the other end of the connecting block 45 is provided with an obliquely arranged strip-shaped groove 47, one end of the pin shaft 46 is fixedly connected with the door frame 38, and the other end of the pin shaft 46 is movably embedded into the strip-shaped groove 47;
when the door body 37 is in a closed state, the guide bearing 43 is embedded into the corresponding groove 44 and forms a gap with the bottom surface of the groove 44, a gap is formed between the pin shaft 46 positioned in the strip-shaped groove 47 and one end of the strip-shaped groove 47, which is close to the sealing ring 36, and the door body 37 is in extrusion contact with the sealing ring 36;
when the door body 37 is in an open state, the guide bearings 43 roll out from the corresponding grooves 44, the pin shaft 46 located in the strip-shaped groove 47 moves towards one end, far away from the sealing ring 36, of the strip-shaped groove 47, and the door body 37 and the sealing ring 36 are arranged at intervals.
The end of the air pumping port 2 and the end of the air inlet 3 close to the interior of the vacuum chamber body 1 are provided with arc chamfers.
An air cylinder 41 is installed on the vacuum chamber 1 and below the slide block 40.
The groove 44 includes a planar recess 441 and arc connecting portions 442 connected to two ends of the planar recess 441, and an end of the arc connecting portion 442 away from the planar recess 441 and a front surface of the guide strip 42 are located on the same plane.
The inclined direction of the strip-shaped groove 47 forms an angle of 60 ° with the moving direction of the door body 37.
The working principle is as follows:
the first cylinder drives the first flange plate to stretch so as to control the opening and closing of the air exhaust flow channel, thereby controlling the on-off of the vacuumizing operation in the vacuum chamber body;
the second cylinder drives the second flange plate to stretch and retract so as to control the opening and closing of the air inlet channel and control the air pressure change in the vacuum bin;
when the first flange plate is pulled away from the air pumping hole by the first air cylinder, the external part is connected with an air pump to start working, and air is pumped from the vacuum chamber body;
when the air pressure in the vacuum bin is larger than a preset value of an air pressure sensor arranged on the vacuum bin, the first air cylinder pushes the first flange plate into the air exhaust port;
pulling the second flange plate away from the air inlet to adjust the air pressure in the vacuum cabin body until the air pressure reaches a preset value;
and after the operation in the vacuum cabin is finished, pulling the second flange plate away from the air inlet to release the pressure.
When the air suction mechanism is adopted, due to the arrangement of the elastic piece, the first flange plate can be superposed and applied with force when the first flange plate is closed, the sealing performance of the first flange plate on the air suction opening in the long-term use process is improved, the impact caused by too fast contraction can be prevented in the opening process of the first flange plate, and the service life of the mechanism is prolonged;
in addition, the constant driving force of the piston rod of the air cylinder can be ensured to be always kept in the long-term reciprocating motion process, and the condition that the flange plate cannot be driven to tightly seal the air suction opening due to air holding is avoided;
in addition, the guide bearing is matched with the groove and the pin shaft is matched with the strip-shaped groove, and a tangential force is provided by the pin shaft in the closing process of the door body, so that the guide bearing is embedded into the groove, and meanwhile, the door body extrudes the sealing ring, so that on the basis of space saving and convenience in opening and closing, the sealing property in the vacuum cabin body when the door body is in a closing state is ensured, the abrasion of the sealing ring in the opening and closing process of the door body can be avoided, the damage of instant pressure relief to the sealing ring can be avoided when the door body is opened, and the stability of the sealing property of the vacuum cabin body in the long-term use process is ensured;
furthermore, the gaps between the guide bearing and the groove and between the pin shaft and the strip-shaped groove are arranged, so that a telescopic space is provided, when the vacuum bin body is vacuumized, negative pressure can be prevented from being transferred to the pin shaft to damage the pin shaft, the door body can be enabled to compress the sealing ring under the action of the negative pressure, and the sealing performance is improved;
in addition, its gyro wheel and the cooperation of direction bearing through the side direction setting provide three-dimensional direction for reciprocating of the door body, avoid the door body to take place to rock about at the removal in-process and lead to the skew of position between the door body and the sealing washer, further guarantee the stability of the internal sealing performance of vacuum chamber when the door body is in the closed condition.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (9)
1. The utility model provides a precision is adhesive deposite device for part which characterized in that: the vacuum glue dispensing device comprises a vacuum bin body (1), a rack (16), a glue dispensing valve (17) and a workbench (18), wherein the vacuum bin body (1) is installed on the rack (16), the glue dispensing valve (17) and the workbench (18) are both positioned in the vacuum bin body (1), and the glue dispensing valve (17) is positioned right above the workbench (18);
an air suction opening (2) is formed in the outer surface of one side of the vacuum cabin body (1), a flange portion (4) extending inwards in the radial direction is formed in the inner wall of one end, close to the inner portion of the vacuum cabin body (1), of the air suction opening (2), a first flange plate (5) is embedded into the air suction opening (2), the end face of one end of the first flange plate (5) is in surface contact with the end face of the corresponding flange portion (4), and the other end of the first flange plate (5) is connected with a piston rod of a first air cylinder (7) correspondingly arranged;
a connecting seat (9) is installed on the air suction opening (2), one end face of the connecting seat (9) is connected with the vacuum cabin body (1), the first air cylinder (7) is installed on the other end face of the connecting seat (9), a piston rod of the first air cylinder (7) is connected with the first flange plate (5) through a first mandrel (10), a first through hole (11) communicated with the air suction opening (2) is formed in the connecting seat (9) along the direction of the first mandrel (10), the first mandrel (10) is telescopically arranged in the first through hole (11), an air suction hole (12) communicated with the first through hole (11) is further formed in the connecting seat (9), and the air suction hole (12) is used for being connected with a vacuum pump;
an elastic piece (14) is sleeved on the first mandrel (10), one end, close to the first flange plate (5), of the elastic piece (14) is in contact with an outer flange portion (101) located at the tail end of the first mandrel (10), and the other end of the elastic piece (14) is connected with a shell of the first air cylinder (7) in an extrusion mode;
a cushion block (31) is arranged between the first air cylinder (7) and the connecting seat (9), the other end of the elastic piece (14) is connected with the cushion block (31) in an extrusion manner, a second through hole (32) through which a piston rod of the first air cylinder (7) and the first mandrel (10) can penetrate is formed in the center of the cushion block (31), and an air outlet hole (33) communicated with the second through hole (32) is formed in the outer end face of the cushion block (31);
the vacuum cabin body (1) is provided with a door opening (35), the edges of the periphery of the door opening (35) are provided with a sealing ring (36), the front side of the door opening (35) is provided with a movable door body (37), the left side and the right side of the door body (37) are respectively provided with a door frame (38), the vacuum cabin body (1) positioned on the left side and the right side of the door opening (35) is respectively provided with a linear guide rail (39), and the two door frames (38) are respectively connected with the corresponding linear guide rails (39) through a sliding block (40), so that the door body (37) can vertically move up and down;
a guide strip (42) is arranged between the linear guide rail (39) and the door frame (38), at least one rotatable guide bearing (43) is arranged on the side end surface of the door frame (38), and when the door body (37) moves up and down along the vertical direction, the guide bearing (43) moving up and down along with the door frame (38) rolls on the front surface of the guide strip (42);
at least two rotatable rollers (48) are arranged between the side end face of the guide strip (42) close to the door frame (38) and the corresponding door frame (38), the rollers (48) are arranged at intervals along the movement direction of the door body (37), and when the door frame (38) moves up and down along with the door body (37), the side end face of the guide strip (42) is in rolling connection with the corresponding door frame (38) through the rollers (48);
the front surface of the guide strip (42) is provided with a groove (44) corresponding to the guide bearing (43), the sliding block (40) is connected with the door frame (38) through a connecting block (45) and a pin shaft (46), one end of the connecting block (45) is connected with the sliding block (40), the side end face of the other end of the connecting block (45) is provided with a strip-shaped groove (47) which is obliquely arranged, one end of the pin shaft (46) is fixedly connected with the door frame (38), and the other end of the pin shaft (46) is movably embedded into the strip-shaped groove (47);
when the door body (37) is in a closed state, the guide bearing (43) is embedded into the corresponding groove (44) and forms a gap with the bottom surface of the groove (44), a gap is formed between the pin shaft (46) positioned in the strip-shaped groove (47) and one end, close to the sealing ring (36), of the strip-shaped groove (47), and the door body (37) is in extrusion contact with the sealing ring (36);
when the door body (37) is in an opening state, the guide bearings (43) roll out from the corresponding grooves (44), the pin shafts (46) located in the strip-shaped grooves (47) move towards one ends, far away from the sealing rings (36), of the strip-shaped grooves (47), and the door body (37) and the sealing rings (36) are arranged at intervals.
2. The apparatus according to claim 1, wherein: the cushion block (31) comprises a main body part (311) close to the first cylinder (7) and a convex part (312) embedded in the first through hole (11).
3. The apparatus according to claim 1, wherein: the elastic member (14) is a bellows-shaped elastic member.
4. The apparatus according to claim 1, wherein: a supporting gasket (15) is arranged between the shell of the first air cylinder (7) and the elastic part (14), and the supporting gasket (15) is sleeved on the first mandrel (10) and is in extrusion contact with the end face of the elastic part (14).
5. The apparatus according to claim 1, wherein: one end of the air suction opening (2) and the air inlet (3) close to the interior of the vacuum cabin body (1) is provided with a circular arc chamfer.
6. The apparatus according to claim 1, wherein: and an air cylinder (41) is arranged on the vacuum cabin body (1) and below the sliding block (40).
7. The apparatus according to claim 1, wherein: the groove (44) comprises a plane concave part (441) and arc-shaped connecting parts (442) which are respectively connected to two ends of the plane concave part (441), and one end, far away from the plane concave part (441), of each arc-shaped connecting part (442) is located on the same plane with the front surface of the guide strip (42).
8. The apparatus according to claim 1, wherein: an included angle formed between the inclined direction of the strip-shaped groove (47) and the moving direction of the door body (37) is 30-60 degrees.
9. The apparatus according to claim 1, wherein: 2 the rollers (48) are arranged in the mounting grooves on the door frame (38) at intervals, and the circumferential surfaces of the rollers (48) extend out of the mounting grooves and are in contact connection with the side end surfaces of the guide strips (42).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011583221.8A CN114682435B (en) | 2020-12-28 | 2020-12-28 | Adhesive dispensing device for precision parts |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011583221.8A CN114682435B (en) | 2020-12-28 | 2020-12-28 | Adhesive dispensing device for precision parts |
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| CN114682435A true CN114682435A (en) | 2022-07-01 |
| CN114682435B CN114682435B (en) | 2023-09-29 |
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|---|---|
| CN114682435B (en) | 2023-09-29 |
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Address after: No. 189, Wutaishan Road, High tech Zone, Suzhou City, Jiangsu Province, 215011 Applicant after: Suzhou Zhuozhao dispensing Co.,Ltd. Address before: 215011 No.3, phase I, standard plant, No.588 Wutaishan Road, high tech Zone, Suzhou City, Jiangsu Province Applicant before: Suzhou Zhuozhao dispensing Co.,Ltd. |
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