CN116393335B - Workpiece clamping jig and workpiece clamping method - Google Patents
Workpiece clamping jig and workpiece clamping method Download PDFInfo
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- CN116393335B CN116393335B CN202310619340.1A CN202310619340A CN116393335B CN 116393335 B CN116393335 B CN 116393335B CN 202310619340 A CN202310619340 A CN 202310619340A CN 116393335 B CN116393335 B CN 116393335B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims description 12
- 230000006698 induction Effects 0.000 claims description 7
- 230000033228 biological regulation Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
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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
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
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- Optics & Photonics (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to the technical field of tools, in particular to a workpiece clamping jig and a workpiece clamping method, wherein the workpiece clamping jig comprises a base, and the base is arranged on a conveying track; the bearing seat is arranged on the base and is used for placing a workpiece and an assembly part, and a workpiece clamping assembly used for clamping the workpiece and an assembly part clamping assembly used for clamping the assembly part are arranged on the bearing seat; the fixed end of the angle adjusting mechanism is connected with the base, and the movable end of the angle adjusting mechanism is connected with the bearing seat so as to adjust the angle of the bearing seat along the first rotating direction and the second rotating direction. According to the workpiece clamping jig, the angle of the workpiece is adjusted along the first rotating direction and the second rotating direction through the angle adjusting mechanism, so that the assembly requirements of different assembly parts are met, and the quality and the precision of dispensing are improved. In addition, the bearing seat can simultaneously convey the workpiece and the assembly part, and can coordinate the assembly angles of the workpiece and the assembly part through the angle adjusting mechanism, so that the assembly efficiency is improved.
Description
Technical Field
The invention relates to the technical field of tools, in particular to a workpiece clamping jig and a workpiece clamping method.
Background
Along with the popularization of intelligent driving of automobiles, the laser radar is applied more and more widely, an optical lens is required to be installed on a lens barrel of the laser radar, and during installation, glue is required to be dispensed between the lens and the lens barrel to realize fixation.
Referring to fig. 1, lenses of different angles such as a first lens 91, a second lens 92, a third lens 93, a fourth lens 94, and a fifth lens 95 are required to be mounted on the lens barrel, the second lens 92, the third lens 93, and the fourth lens 94 are respectively mounted on a second mounting surface 921, a third mounting surface 931, and a fourth mounting surface 941, and the first lens 91 and the fifth lens 95 are required to be placed in the lens barrel and dispensed through a first mounting groove 911 and a second mounting groove 951 on the lens barrel, respectively.
When the lens is attached, when the plane to be attached on the lens barrel is in a horizontal state, the attaching effect of the lens is good, so that the placing posture of the lens barrel needs to be changed to adapt to the attaching of different lenses.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to solve the technical problem that the angle of a workpiece needs to be adjusted in the prior art, the invention provides the workpiece clamping jig, the angle of the workpiece is adjusted along the first rotating direction and the second rotating direction through the angle adjusting mechanism, so that the assembly requirements of different assembly parts are met, and the quality and the precision of dispensing are improved.
The technical scheme adopted for solving the technical problems is as follows: the workpiece clamping jig comprises a base, wherein the base is arranged on a conveying rail; the bearing seat is arranged on the base and used for placing a workpiece and an assembly part, and a workpiece clamping assembly used for clamping the workpiece and an assembly part clamping assembly used for clamping the assembly part are arranged on the bearing seat; the angle adjusting mechanism is characterized in that a fixed end of the angle adjusting mechanism is connected with the base, a movable end of the angle adjusting mechanism is connected with the bearing seat to adjust the angle of the bearing seat along a first rotating direction and a second rotating direction, and the first rotating direction and the second rotating direction are mutually perpendicular.
According to the workpiece clamping jig, the angle of the workpiece is adjusted along the first rotating direction and the second rotating direction through the angle adjusting mechanism, so that the assembly requirements of different assembly parts are met, and the quality and the precision of dispensing are improved. In addition, the bearing seat can simultaneously convey the workpiece and the assembly part, and can coordinate the assembly angles of the workpiece and the assembly part through the angle adjusting mechanism, so that the assembly efficiency is improved.
Further, the angle adjusting mechanism comprises a first rotating direction adjusting component, the first rotating direction adjusting component is connected with the bearing seat, and the first rotating direction adjusting component can drive the bearing seat to rotate in a first rotating direction; the second rotation direction adjusting assembly is connected with the first rotation direction adjusting assembly and can drive the first rotation direction adjusting assembly to rotate in the second rotation direction.
Further, the bearing seat comprises a bottom plate, a first working plate and a second working plate which are arranged on the bottom plate, and the workpiece is placed on the bottom plate; the workpiece clamping assembly comprises a first clamping piece, the first clamping piece comprises a first workpiece telescopic piece and a first clamping plate, the first workpiece telescopic piece is arranged on the bearing seat, the first clamping plate is connected with the movable end of the first workpiece telescopic piece, the first clamping plate is arranged opposite to the first working plate, and the workpiece is positioned between the first clamping plate and the first working plate; the second clamping piece comprises a second workpiece telescopic piece and a second clamping plate, the second workpiece telescopic piece is arranged on the bearing seat, the second clamping plate is connected with the movable end of the second workpiece telescopic piece, the second clamping plate is arranged relative to the second working plate, and the workpiece is located between the second clamping plate and the second working plate.
Further, the bearing seat is provided with an assembly part placing groove for placing an assembly part, the assembly part clamping assembly comprises an assembly part telescopic part, and the assembly part telescopic part is arranged on the bearing seat; the assembly part clamping plate is connected with the output end of the assembly part telescopic piece; the assembly part placing groove is arranged in a penetrating mode towards one end of the assembly part clamping plate.
Further, the assembly part placing groove is provided with an induction groove, a first photoelectric sensor is arranged in the induction groove, and an induction area of the first photoelectric sensor is arranged towards the assembly part placing groove.
Further, the base is provided with a curing assembly, and the curing assembly is provided with two groups of workpieces which are respectively positioned on two sides of the bearing seat.
Further, the curing assembly comprises a curing telescopic driving piece, and the curing telescopic driving piece is arranged on the base; the solidifying piece is connected with the output end of the solidifying telescopic driving piece.
Further, a negative pressure port is arranged on the upper side wall of the bearing seat, and the negative pressure port is communicated with an airtight detection assembly.
The workpiece clamping method is applied to the workpiece clamping jig, the workpiece clamping assembly comprises a first clamping piece and a second clamping piece, and the workpiece clamping method comprises the following steps:
s1, placing a workpiece on a bearing seat, and lightly clamping the workpiece through a first clamping piece;
s2, re-clamping the workpiece through a second clamping piece, wherein the clamping directions of the first clamping piece and the second clamping piece are different;
s3, clamping the workpiece again through the first clamping piece, and clamping the workpiece.
Further, the bearing seat comprises a bottom plate, a first working plate and a second working plate, wherein the first working plate and the second working plate are arranged on the bottom plate;
the first clamping piece comprises a first clamping plate and a first workpiece telescopic piece, the first clamping plate is arranged opposite to the first working plate, and the first workpiece telescopic piece drives the first clamping plate to move;
the second clamping piece comprises a second clamping plate and a second workpiece telescopic piece, the second clamping plate is arranged opposite to the second working plate, and the second workpiece telescopic piece drives the second clamping plate to move;
the workpiece is positioned between the first working plate and the first clamping plate and is positioned between the second working plate and the second clamping plate.
In the step S1, the first workpiece telescopic piece drives the first clamping plate to move towards the first working plate, and is matched with the first working plate to lightly clamp the workpiece, so that the workpiece is abutted against the first working plate;
and S3, applying larger thrust to the first clamping plate by the first workpiece telescopic piece, matching with the first working plate, and clamping the workpiece again to clamp the workpiece.
Further, an air inlet end of the first workpiece telescopic piece when clamping a workpiece is communicated with a first air pipe, one end of the first air pipe, which is far away from the first workpiece telescopic piece, is communicated with a three-way pipe, the other two interfaces of the three-way pipe are respectively communicated with a first electromagnetic valve and a second electromagnetic valve, the first electromagnetic valve is communicated with a first pressure reducing valve, and the second electromagnetic valve is communicated with a second pressure reducing valve;
in the S1 step, the first pressure reducing valve is connected to a gas circuit;
and S3, in the step, the first pressure reducing valve and the second pressure reducing valve are both connected to the gas circuit.
Further, a one-way valve is arranged between the three-way pipe and the second electromagnetic valve, and the one-way valve is used for preventing compressed air from flowing from the first workpiece telescopic piece to the second electromagnetic valve.
The invention has the advantages that,
1. when the workpiece clamping device works, the first workpiece telescopic part drives the first clamping plate to lightly clamp the workpiece, so that the workpiece is abutted against the first working plate, the workpiece is positioned in the clamping direction of the first clamping part, the workpiece is not clamped, the second clamping plate is convenient to continuously push the workpiece to move, the workpiece is abutted against the second working plate, the workpiece is positioned and clamped in the clamping direction of the second clamping part, finally the first clamping plate is heavily clamped, the workpiece is clamped in the clamping direction of the first clamping part, and finally the workpiece is reliably fixed;
2. when the light clamp is carried out, only the first pressure reducing valve is connected to the air circuit, and the output pressure is smaller at the moment, so that the light clamp can be realized, and when the heavy clamp is carried out, the first pressure reducing valve and the second pressure reducing valve are simultaneously connected to the air circuit, and the first pressure reducing valve and the second pressure reducing valve are overlapped to obtain larger output pressure, so that the heavy clamp is realized;
3. through the arrangement of the one-way valve, the compressed air is prevented from flowing from the first workpiece telescopic piece to the second electromagnetic valve conveniently.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic diagram showing the positional relationship between a lens barrel and a lens.
Fig. 2 is a schematic structural diagram of the whole workpiece clamping fixture according to the invention. In fig. 2, the direction a is the first direction, and the direction b is the second direction.
Fig. 3 is a schematic view of a first clamp, a second clamp and a fitting clamp assembly embodying the present invention.
Fig. 4 is a schematic view of a structure embodying an angle adjusting mechanism in the present invention. In fig. 4, the Y direction is a first rotation direction, and the X direction is a second rotation direction.
Fig. 5 is a schematic view of a structure embodying the base plate, the first work plate, and the second work plate in the present invention.
Fig. 6 is a schematic view of a structure of a negative pressure port embodied in the present invention.
Fig. 7 is a schematic air circuit diagram of a first workpiece telescopic light clamp according to the invention.
Fig. 8 is a schematic air path diagram of a first workpiece retractor of the invention.
Fig. 9 is a schematic view of the air path for resetting the first workpiece telescopic member in the present invention.
1, a base; 2. an angle adjusting mechanism; 21. a first rotational direction adjustment assembly; 22. a second rotational direction adjustment assembly; 23. a differential ruler; 24. an arc surface; 31. a workpiece placement groove; 32. fitting placement slots; 33. a bottom plate; 331. a support base; 332. a fitting base; 333. an induction tank; 334. a first photosensor; 34. a second work plate; 35. a first work plate; 351. a negative pressure port; 352. a second photosensor; 41. a first clamping member; 411. a first workpiece telescoping member; 412. a first clamping plate; 42. a second clamping member; 421. a second workpiece telescoping member; 422. a second clamping plate; 43. fitting clamping assemblies; 431. fitting telescoping pieces; 432. fitting clamp plates; 5. curing the assembly; 51. solidifying the telescopic driving piece; 52. a cured member; 61. a three-way pipe; 62. a first speed regulating valve; 63. a second speed regulating valve; 64. a first electromagnetic valve; 65. a second electromagnetic valve; 66. a first pressure reducing valve; 67. a second pressure reducing valve; 68. a third speed regulating valve; 69. a one-way valve; 71. a first air tube; 72. a second air pipe; 73. a third air pipe; 74. a fourth air pipe; 75. a fifth air pipe; 76. a sixth air pipe; 77. a seventh air pipe; 78. an eighth air pipe; 79. a ninth air pipe; 91. a first lens; 911. a first mounting groove; 92. a second lens; 921. a second mounting surface; 93. a third lens; 931. a third mounting surface; 94. a fourth lens; 941. a fourth mounting surface; 95. a fifth lens; 951. and a second mounting groove.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
The invention discloses a workpiece clamping jig.
Referring to fig. 2 to 5, the workpiece clamping jig comprises a base 1 arranged on a conveying track, an angle adjusting mechanism 2 is fixedly connected to the base 1, a bearing seat is connected to the movable end of the angle adjusting mechanism 2, and a workpiece placing groove 31 and a fitting placing groove 32 are formed in the bearing seat and are respectively used for placing a workpiece and a fitting. The bearing seat is also provided with a clamping mechanism for clamping the workpiece and the assembly part.
Referring to fig. 3, the bearing seat includes a bottom plate 33, a second working plate 34 and a first working plate 35, the bottom plate 33 is fixedly connected with the movable end of the angle adjusting mechanism 2, the second working plate 34 and the first working plate 35 are fixedly connected to the bottom plate 33, and a workpiece placing groove 31 is formed between the first working plate 35 and the second working plate 34.
Referring to fig. 2, the angle adjusting mechanism 2 is an angular manual displacement table, and can manually adjust the angle of the bottom plate 33 in the first rotation direction and the second rotation direction, and the manually adjusted angle can be maintained at all times. The first rotation direction and the second rotation direction are mutually perpendicular.
Referring to fig. 4, the angle adjusting mechanism 2 includes a first rotation direction adjusting assembly 21 and a second rotation direction adjusting assembly 22, one end of the second rotation direction adjusting assembly 22 is fixedly connected with the base 1, and the other end is fixedly connected with the first rotation direction adjusting assembly 21, so that the first rotation direction adjusting assembly 21 can be driven to rotate in the second rotation direction. The first rotation direction adjusting component 21 is fixedly connected with the bottom plate 33, and can drive the bottom plate 33 to rotate in the first rotation direction. The first rotation direction adjusting assembly 21 adjusts the angle of the bottom plate 33 in the first rotation direction by the engagement of the differential rule 23 with one circular arc surface 24, and the second rotation direction adjusting assembly 22 adjusts the angle of the bottom plate 33 in the second rotation direction by the engagement of the other differential rule 23 with the other circular arc surface 24.
Referring to fig. 3 and 5, the clamping mechanism includes a workpiece clamping assembly and a fitting clamping assembly 43, each of which workpiece clamping assembly and fitting clamping assembly 43 is disposed on the base plate 33 and is adapted to clamp a workpiece and fitting, respectively. The workpiece clamping assembly comprises a first clamping piece 41 and a second clamping piece 42, the first clamping piece 41 comprises a first workpiece telescopic piece 411 and a first clamping plate 412, the first workpiece telescopic piece 411 is fixedly connected to the first working plate 35 along a first direction, the first clamping plate 412 is fixedly connected with the movable end of the first workpiece telescopic piece 411, and the first clamping plate 412 and the first working plate 35 are oppositely arranged along the first direction so as to be convenient for being matched with each other to clamp a workpiece.
The bottom plate 33 is fixedly connected with a supporting seat 331, the second clamping piece 42 comprises a second workpiece telescopic piece 421 and a second clamping plate 422, the second workpiece telescopic piece 421 is fixedly connected to the supporting seat 331 along a second direction, the second clamping plate 422 is fixedly connected with the output end of the second workpiece telescopic piece 421, and the second clamping plate 422 and the second working plate 34 are oppositely arranged along the second direction so as to be convenient for being matched with each other to clamp a workpiece. After the workpiece is placed in the workpiece placing groove 31, the first workpiece telescopic piece 411 and the second workpiece telescopic piece 421 are sequentially started to drive the first clamping plate 412 and the second clamping plate 422 to move so as to clamp the workpiece in cooperation with the second working plate 34 and the first working plate 35. The first work telescoping member 411 and the second work telescoping member 421 may each employ a telescoping cylinder.
Referring to fig. 6, a second photoelectric sensor 352 is mounted on the first work plate 35, and a sensing area of the second photoelectric sensor 352 is disposed toward the workpiece placement groove 31, and when a workpiece is placed in the workpiece placement groove 31, the second photoelectric sensor 352 is triggered.
Referring to fig. 6, a negative pressure port 351 is formed in a side wall of the first working plate 35, the negative pressure port 351 is communicated with an airtight detection component, when a workpiece is placed, the side wall of the workpiece is attached to the first working plate 35, the position of the workpiece corresponding to the negative pressure port 351 is a processed surface, and accuracy of airtight detection is guaranteed. The airtight detection component comprises a negative pressure suction pipe and a pressure gauge, wherein the negative pressure suction pipe is communicated with the negative pressure port 351, and the pressure gauge is arranged on the negative pressure suction pipe so as to detect the pressure at the negative pressure port 351. When in airtight detection, the negative pressure suction pipe is connected with a negative pressure source to generate negative pressure, the pressure gauge detects the pressure at the negative pressure port 351, if the detection result is negative pressure, the workpiece clamping is reliable, and if the detection result is positive pressure, the workpiece clamping is unreliable or the precision of the machined surface is insufficient.
Referring to fig. 5 and 6, a fitting base 332 is fixedly connected to the support base 331, and a fitting placement groove 32 is formed in the fitting base 332. The fitting clamping assembly 43 includes a fitting expansion member 431 and a fitting clamping plate 432, the fitting expansion member 431 is fixedly connected to the fitting base 332 along the second direction, the fitting clamping plate 432 is fixedly connected to the output end of the fitting expansion member 431, the top of the fitting placement groove 32 is higher than the bottom surface of the fitting clamping plate 432, and one end of the fitting placement groove 32 facing the fitting clamping plate 432 is penetrated, so that the fitting clamping plate 432 can be abutted with the fitting, and then is matched with the groove wall of the fitting placement groove 32 to clamp the fitting.
Referring to fig. 5 and 6, a sensing groove 333 is formed at the bottom of the assembly placement groove 32, a first photoelectric sensor 334 is installed in the sensing groove 333, and a sensing area of the first photoelectric sensor 334 is arranged towards the assembly placement groove 32 so as to sense whether the assembly is in place.
Referring to fig. 2, the base 1 is further provided with a curing assembly 5, and the curing assembly 5 is provided with two groups and is respectively located at two sides of the workpiece placement groove 31 along the first direction, so as to ensure the curing effect. The curing assembly 5 comprises a curing telescopic driving member 51 and a curing member 52 fixedly connected with the extending end of the curing telescopic driving member 51, and the curing telescopic driving member 51 is fixedly connected to the base 1 along the vertical direction. When the device works, the extending end of the curing telescopic driving piece 51 extends out to drive the curing piece 52 to move upwards until the curing area of the curing piece 52 covers the dispensing position, so that the rapid curing of the dispensing position is facilitated. When auxiliary curing is not needed, the extending end of the curing telescopic driving piece 51 is in a retracted state so as to reduce the possibility of interference to the manipulator, and the extending end of the curing telescopic driving piece 51 is in an extending state, namely a curing state in the drawing. The curing member 52 may be a curing light of the type R10S6XF30X10 manufactured by Xiamen solid technologies Co., ltd.
In this embodiment, the first direction and the first rotation direction are the same direction, and the second direction and the second rotation direction are the same direction.
Working principle: in operation, a workpiece is placed in the workpiece placement groove 31, and then the first workpiece telescopic piece 411 is started first to drive the first clamping plate 412 to move towards the first working plate 35, push the workpiece to move towards the first working plate 35 and clamp the workpiece in cooperation with the first working plate 35. Then, the second workpiece telescopic piece 421 is started to drive the second clamping plate 422 to move towards the second working plate 34, so as to push the workpiece to move towards the second working plate 34 and clamp the workpiece by being matched with the second working plate 34.
Then, airtight detection is carried out, the negative pressure suction pipe is connected with a negative pressure source to generate negative pressure, the pressure gauge detects the pressure at the negative pressure port 351, if the detection result is negative pressure, the workpiece clamping is reliable, and if the detection result is positive pressure, the workpiece clamping is unreliable or the machining surface precision is insufficient.
After the airtight detection, the assembly is placed in the assembly placement groove 32, and then the output end of the assembly telescopic piece 431 extends out to drive the assembly clamping plate 432 to move, and the assembly clamping plate is matched with the assembly placement groove 32 to clamp the assembly.
The jig is then moved entirely to the dispensing station, the fitting clamp 432 is released, the dispensing apparatus places the fitting on the mounting face of the workpiece, then dispensing is performed, and after dispensing is completed, the output end of the curing telescoping drive member 51 extends out, driving the curing member 52 to move up until flush with the dispensing location, so as to assist in rapid curing of the dispensing location.
A workpiece clamping method comprises the following steps:
s1, placing the workpiece on the bearing seat, and lightly clamping the workpiece through the first clamping piece 41. The carrier comprises a base plate 33, a first working plate 35 and a second working plate 34 arranged on the base plate 33, and the base plate 33 is used for placing workpieces. The first clamping member 41 includes a first clamping plate 412 disposed opposite to the first working plate 35 and a first workpiece telescopic member 411 for driving the first clamping plate 412 to move, and the workpiece is located between the first working plate 35 and the first clamping plate 412. When the workpiece is lightly clamped, the first workpiece telescopic piece 411 drives the first clamping plate 412 to move towards the first working plate 35, and is matched with the first working plate 35 to lightly clamp the workpiece, so that the workpiece is abutted against the first working plate 35.
S2, the workpiece is clamped again through the second clamping piece 42, the second clamping piece 42 comprises a second clamping plate 422 which is arranged opposite to the second working plate 34 and a second workpiece telescopic piece 421 which drives the second clamping plate 422 to move, the workpiece is located between the second working plate 34 and the second clamping plate 422 at the same time, and the clamping directions of the first clamping piece 41 and the second clamping piece 42 are different, preferably mutually perpendicular. When the workpiece is clamped again, the second workpiece telescopic piece 421 drives the second clamping plate 422 to move towards the second working plate 34, and is matched with the second working plate 34 to clamp the workpiece again, so that the workpiece is clamped along the movement direction of the second workpiece telescopic piece 421, and the workpiece is abutted against the second working plate 34.
And S3, applying larger pushing force to the first clamping plate 412 through the first workpiece telescopic piece 411, matching with the first working plate 35, clamping the workpiece again, and clamping the workpiece along the movement direction of the first workpiece telescopic piece 411.
Referring to fig. 7, an air inlet end of the first workpiece telescopic member 411 when clamping a workpiece is communicated with a first air pipe 71, one end of the first air pipe 71 far away from the first workpiece telescopic member 411 is communicated with a three-way pipe 61, two other interfaces of the three-way pipe 61 are respectively communicated with a second air pipe 72 and a third air pipe 73, one end of the second air pipe 72 far away from the three-way pipe 61 is communicated with a first electromagnetic valve 64, one end of the third air pipe 73 far away from the three-way pipe 61 is communicated with a second electromagnetic valve 65, a first speed regulating valve 62 is arranged on the second air pipe 72, a one-way valve 69 and a second speed regulating valve 63 are arranged on the third air pipe 73, and the one-way valve 69 is used for preventing compressed air from flowing towards the second electromagnetic valve 65. The first electromagnetic valve 64 is further communicated with a fourth air pipe 74, a fifth air pipe 75 and an eighth air pipe 78, the fourth air pipe 74 is provided with a first pressure reducing valve 66, the second electromagnetic valve 65 is further provided with a sixth air pipe 76 and a ninth air pipe 79, and the sixth air pipe 76 is provided with a second pressure reducing valve 67.
The fourth air tube 74 and the sixth air tube 76 are in communication with an air source for facilitating the supply of compressed air from the air source. The fifth air pipe 75, the eighth air pipe 78 and the ninth air pipe 79 are all communicated with the atmosphere, so that pressure relief is facilitated. The air outlet end of the first workpiece telescopic piece 411 when clamping the workpiece is communicated with a seventh air pipe 77, one end of the seventh air pipe 77 far away from the first workpiece telescopic piece 411 is communicated with the first electromagnetic valve 64, and the seventh air pipe 77 is provided with a third speed regulating valve 68. The set pressure of the first pressure reducing valve 66 is smaller than the set pressure of the second pressure reducing valve 67, in this embodiment, the set pressure of the first pressure reducing valve 66 is 0.1-0.3MP, and the set pressure of the second pressure reducing valve 67 is 0.4-0.6MP. The first solenoid valve 64 and the second solenoid valve 65 may each be a pilot-operated two-position five-way solenoid valve.
Referring to fig. 7, in operation, the fourth air line 74 is first vented to the atmosphere and the fifth air line 75 is vented to the atmosphere. The compressed air is output from the air source, passes through the first electromagnetic valve 64 after being output from the first pressure reducing valve 66, then passes through the first speed regulating valve 62 and enters the right cavity of the first workpiece telescopic piece 411, pushes the piston to move, and further drives the first clamping plate 412 to move towards the first working plate of the first fixed plate. Meanwhile, the compressed air in the left cavity of the first workpiece telescopic part 411 passes through the third speed regulating valve 68 and the first electromagnetic valve 64 after being pressed, and is discharged into the atmosphere from the fifth air pipe 75, and because the set pressure of the first pressure reducing valve 66 is 0.1-0.3MP, the pressure of the compressed air output by the first pressure reducing valve 66 is smaller, the clamping force of the first clamping plate 412 on the workpiece is smaller, the workpiece cannot be clamped, and the second clamping plate 422 can push the workpiece to be attached to the second working plate of the second fixing plate during clamping.
Referring to fig. 8, after the second clamping plate 422 completes clamping, the sixth air pipe 76 is connected to the air source, the second pressure reducing valve 67 also outputs compressed air, the compressed air passes through the second electromagnetic valve 65, then passes through the second speed regulating valve 63 and the one-way valve 69, finally enters the right cavity of the first workpiece telescopic member 411, acts on the piston together with the compressed air output by the first pressure reducing valve 66, and meanwhile, the pressure applied to the piston is larger due to the set pressure of the second pressure reducing valve 67 being 0.4-0.6MP, so that the clamping force of the first clamping plate 412 on the workpiece is larger, and the workpiece is clamped.
Referring to fig. 9, when it is desired to loosen the work, compressed air passes through the fourth air pipe 74, the first solenoid valve 64 and the third speed valve 68 in order, and enters the left chamber of the first work piece expansion member 411, pushing the piston to move, so that the first clamping plate 412 moves in a direction away from the first work plate first fixing plate to loosen the work. At this time, the compressed air in the right chamber of the first work expansion member 411 passes through the first speed control valve 62 and the first solenoid valve 64, and is then discharged to the atmosphere through the eighth air pipe 78.
The first pressure reducing valve 66 is provided in the fourth air pipe 74, and thus, the occurrence of unstable operation of the air passage due to leakage of the first pressure reducing valve 66 can be reduced as compared with the case of providing the second air pipe 72. The provision of the check valve 69 reduces the likelihood of the compressed air flowing back into the second solenoid valve 65.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (9)
1. The workpiece clamping method is suitable for a workpiece clamping jig and is characterized in that: the workpiece clamping jig comprises a workpiece clamping assembly and a bearing seat, wherein the workpiece clamping assembly is arranged on the bearing seat, the workpiece clamping assembly comprises a first clamping piece (41) and a second clamping piece (42), the bearing seat comprises a bottom plate (33), a first working plate (35) and a second working plate (34) which are arranged on the bottom plate (33), and the workpiece is placed on the bottom plate (33);
the first clamping piece (41) comprises a first clamping plate (412) which is arranged opposite to the first working plate (35) and a first workpiece telescopic piece (411) which drives the first clamping plate (412) to move;
the air inlet end of the first workpiece telescopic piece (411) is communicated with a first air pipe (71), one end, far away from the first workpiece telescopic piece (411), of the first air pipe (71) is communicated with a three-way pipe (61), the other two interfaces of the three-way pipe (61) are respectively communicated with a first electromagnetic valve (64) and a second electromagnetic valve (65), the first electromagnetic valve (64) is communicated with a first pressure reducing valve (66), and the second electromagnetic valve (65) is communicated with a second pressure reducing valve (67);
the second clamping piece (42) comprises a second clamping plate (422) which is arranged opposite to the second working plate (34) and a second workpiece telescopic piece (421) which drives the second clamping plate (422) to move;
the workpiece is positioned between the first working plate (35) and the first clamping plate (412) and is positioned between the second working plate (34) and the second clamping plate (422);
the workpiece clamping method comprises the following steps:
s1, placing a workpiece on a bearing seat, wherein the first pressure reducing valve (66) is connected to an air channel, and the first workpiece telescopic piece (411) drives the first clamping plate (412) to move towards the first working plate (35) and cooperate with the first working plate (35) to lightly clamp the workpiece so that the workpiece is abutted against the first working plate (35);
s2, re-clamping the workpiece through a second clamping piece (42), wherein the clamping directions of the first clamping piece (41) and the second clamping piece (42) are different;
s3, the first pressure reducing valve (66) and the second pressure reducing valve (67) are both connected into the air passage, the first workpiece telescopic piece (411) applies larger thrust to the first clamping plate (412) and is matched with the first working plate (35), so that the workpiece is clamped again and clamped.
2. The workpiece clamping method of claim 1, wherein: a one-way valve (69) is arranged between the three-way pipe (61) and the second electromagnetic valve (65), and the one-way valve (69) is used for preventing compressed air from flowing from the first workpiece telescopic piece (411) to the second electromagnetic valve (65).
3. A workpiece clamping method as claimed in claim 1 or 2, wherein: the workpiece clamping jig further comprises
The base (1) is arranged on the conveying track, the bearing seat is arranged on the base (1) and used for placing a workpiece and an assembly part, and the bearing seat is provided with an assembly part clamping assembly (43) for clamping the assembly part;
the angle adjusting mechanism (2), the stiff end and the base (1) of angle adjusting mechanism (2) are connected, the expansion end and the bearing seat of angle adjusting mechanism (2) are connected to along the angle of first direction of rotation and second direction of rotation regulation bearing seat, first direction of rotation and second direction of rotation mutually perpendicular.
4. A method of clamping a workpiece as recited in claim 3, wherein: the angle adjusting mechanism (2) comprises
The first rotating direction adjusting assembly (21), the first rotating direction adjusting assembly (21) is connected with the bearing seat, and the first rotating direction adjusting assembly (21) can drive the bearing seat to rotate in the first rotating direction;
the second rotation direction adjusting assembly (22), second rotation direction adjusting assembly (22) are connected with first rotation direction adjusting assembly (21), second rotation direction adjusting assembly (22) can drive first rotation direction adjusting assembly (21) to rotate in the second rotation direction.
5. A method of clamping a workpiece as recited in claim 3, wherein: the carrier is provided with a fitting placement groove (32) for placing a fitting, and the fitting clamping assembly (43) comprises
The assembly part telescopic part (431), the assembly part telescopic part (431) is arranged on the bearing seat;
a fitting clamp (432), wherein the fitting clamp (432) is connected with the output end of the fitting expansion piece (431);
the fitting placement groove (32) is provided so as to penetrate toward one end of the fitting clamp plate (432).
6. The workpiece clamping method of claim 5, wherein: the assembly part placing groove (32) is provided with an induction groove (333), a first photoelectric sensor (334) is arranged in the induction groove (333), and an induction area of the first photoelectric sensor (334) is arranged towards the assembly part placing groove (32).
7. A method of clamping a workpiece as recited in claim 3, wherein: the base (1) is provided with a curing assembly (5), and the curing assembly (5) is provided with two groups and is respectively positioned at two sides of the bearing seat.
8. The workpiece clamping method of claim 7, wherein: the curing assembly (5) comprises
The curing telescopic driving piece (51), the curing telescopic driving piece (51) is arranged on the base (1);
and the curing part (52) is connected with the output end of the curing telescopic driving part (51).
9. A method of clamping a workpiece as recited in claim 3, wherein: the bearing seat is characterized in that a negative pressure port (351) is formed in the upper side wall of the bearing seat, and the negative pressure port (351) is communicated with an airtight detection assembly.
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| CN202310619340.1A CN116393335B (en) | 2023-05-30 | 2023-05-30 | Workpiece clamping jig and workpiece clamping method |
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| CN202310619340.1A CN116393335B (en) | 2023-05-30 | 2023-05-30 | Workpiece clamping jig and workpiece clamping method |
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| CN116393335B true CN116393335B (en) | 2023-09-15 |
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| CN117427855B (en) * | 2023-12-20 | 2024-03-08 | 常州铭赛机器人科技股份有限公司 | Workpiece clamping device and workpiece clamping method |
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|---|---|
| CN116393335A (en) | 2023-07-07 |
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