CN111545957A

CN111545957A - Automatic accurate welding workstation of clamp plate for vehicle-mounted operating table

Info

Publication number: CN111545957A
Application number: CN202010429107.3A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-08-18

Abstract

The invention belongs to the technical field of medical instrument manufacturing equipment, and relates to an automatic and accurate welding workstation of a pressing plate for a vehicle-mounted operating table. The front cylinder drives the Z-shaped push plate to push a Z-shaped piece vertical shaft hole in the Z-shaped piece storehouse to be positioned right above the vertical shaft avoiding groove, the cylindrical cylinder drives the positioning rod to be inserted into the upper end of the vertical shaft hole, the vertical shaft feeding cylinder drives the vertical shaft push plate to push the left end to the right end of a vertical shaft self-supporting shaft supporting surface, the vertical shaft parallel air claw drives the two clamping jaws to clamp the vertical shaft, the vertical shaft conveying cylinder drives the combination of the clamping jaws and the vertical shaft to translate to the position right below the vertical shaft hole, the vertical shaft lifting cylinder drives the combination of the clamping jaws and the vertical shaft to be inserted into the lower end of the vertical shaft hole, the annular cylinder drives the semi-ring pressing sleeve to tightly press the. The invention can improve the form and position tolerance precision of products, avoid welding deformation, improve the yield, reduce the amount of manual labor and the labor intensity and improve the working efficiency.

Description

Automatic accurate welding workstation of clamp plate for vehicle-mounted operating table

Technical Field

The invention belongs to the technical field of medical equipment manufacturing equipment, relates to manufacturing equipment of a vehicle-mounted operating table, and particularly relates to an automatic accurate welding workstation of a pressing plate for the vehicle-mounted operating table.

Background

The vehicle-mounted operating bed is fixedly installed in a van vehicle or a square cabin, the pressure plate assembly 1, bolts and the like are connected with the components, the installation mode is simple in structure, convenient to take and use and reliable in fixation, and the pressure plate assembly 1 is an important component required by fixed installation.

The pressing plate assembly 1 comprises a second-shaped part 11 and a vertical shaft 12, wherein the second-shaped part 11 is formed by bending a rectangular steel plate with the thickness of 8 mm twice at 90 degrees in two opposite directions, the second-shaped part 11 comprises an upper horizontal part 111, an upright part 112 and a lower horizontal part 113, the upper horizontal part 111 is higher in height, the lower horizontal part 113 is lower in height on the left side, and the upright part 112 is connected between the upper horizontal part 111 and the lower horizontal part 113 on the right side. The upper horizontal part 111 is provided with an up-down through vertical shaft hole 114, the upper end of the vertical shaft 12 is matched with the vertical shaft hole 114, the upper end of the vertical shaft 12 is lower than the upper plane of the upper horizontal part 111 by 3 mm, and four points are uniformly welded along the circumference at the position where the upper end of the vertical shaft 12 is adjacent to the vertical shaft hole 114, so that the second-shaped part 11 and the vertical shaft 12 are fixedly connected together. And the axis line of the vertical shaft 12 is required to be perpendicular to the upper horizontal portion 111.

At present, the pressing plate assembly 1 is manually assembled and spot-welded, a matched combined body of the second-shaped part 11 and the vertical shaft 12 is installed on a vice, the vertical shaft 12 is clamped in the jaw of the vice, and the lower surface of the upper horizontal part 111 is attached to the upper surface of the jaw of the vice and then manually spot-welded. The manual welding has the advantages that the working efficiency is low, the labor intensity is high, the upper horizontal part 111 is not compacted, welding deformation is easy to generate, and the rejection rate is high.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the automatic accurate welding workstation of the pressing plate for the vehicle-mounted operating table, which can improve the form and position tolerance precision of products, avoid welding deformation, improve the yield, reduce the amount of manual labor and labor intensity and improve the working efficiency.

The invention is realized by the following technical scheme:

an automatic accurate welding workstation of a pressing plate for a vehicle-mounted operating table comprises a channel block, an B-shaped member library assembly, an B-shaped member pusher, a positioning welding assembly, a vertical shaft feeder, a vertical shaft conveyor, a vertical shaft conveying linear guide rail and a rack; the vertical shaft transmission linear guide rail is fixedly connected with the rack and arranged along the left and right horizontal directions;

the second-piece library component comprises a second-piece library, a second-piece cylinder and a second-piece push block; the second-type component library is fixedly connected with the rack; the left side horizontal plane is higher than the right side horizontal plane, the right end of the left side horizontal plane is connected with the upper end of the vertical plane, and the left end of the right side horizontal plane is connected with the lower end of the vertical plane; the lower surface of the upper horizontal part of the first B-shaped part at the lower left in the cavity of the B-shaped part warehouse is attached to the horizontal plane at the left, the left side surface of the vertical part is attached to the vertical surface, and the lower surface of the lower horizontal part is attached to the horizontal plane at the right; the second B-shaped piece is stacked at the upper right part of the first B-shaped piece, the lower surface of the upper horizontal part of the second B-shaped piece is attached to the upper surface of the upper horizontal part of the first B-shaped piece, the left side surface of the vertical part of the second B-shaped piece is attached to the right side surface of the vertical part of the first B-shaped piece, and the lower surface of the lower horizontal part of the second B-shaped piece is attached to the upper surface of the lower horizontal part of the first B-shaped piece; the third B-shaped piece is stacked on the upper right side of the second B-shaped piece in the same way, and the rest is done in sequence, and a plurality of B-shaped pieces are stacked in the cavity of the B-shaped piece warehouse; a Z-shaped push plate through hole is formed in the rear side of the left lower part of the cavity of the Z-shaped member warehouse, and a Z-shaped member outlet is formed in the front side of the left lower part of the cavity of the Z-shaped member warehouse; the second-shaped-piece cylinder is a cylinder with a guide rod and comprises a second-shaped-piece cylinder body and a second-shaped-piece cylinder piston rod; the second-shaped piece push block is fixedly connected with a second-shaped piece cylinder piston rod; the cylinder body of the second piece is fixedly connected with the upper right end of the second piece library; the second-shaped part push block is provided with a second-shaped part push surface, the second-shaped part push surface comprises two downward horizontal surfaces and a left vertical surface, the horizontal surface on the left side of the second-shaped part push surface is higher, the horizontal surface on the right side is lower, the right end of the horizontal surface on the left side is connected with the upper end of the vertical surface, and the left end of the horizontal surface on the right side is connected with the lower end of the vertical surface; the B-shaped piece cylinder drives the B-shaped piece push block to translate towards the lower left side, the B-shaped piece push block pushes one of the plurality of B-shaped pieces stacked on the upper right side towards the lower left side, the horizontal plane on the left side of the B-shaped piece push surface is tightly attached to the upper surface of the upper horizontal part of the B-shaped piece on the upper right side, the vertical plane of the B-shaped piece push surface is tightly attached to the right side surface of the vertical part of the B-shaped piece on the upper right side, the horizontal plane on the right side of the B-shaped piece push surface is tightly attached to the upper surface of the lower horizontal part of;

the channel block is fixedly connected with the frame; the channel block is internally provided with a front-back through B-shaped piece channel, the cross section of the B-shaped piece channel is L-shaped, the cross section of the B-shaped piece channel comprises two parts, the first part is narrow in size in the vertical direction and wide in the left-right direction, the second part is narrow in size in the left-right direction and wide in the vertical direction and is upwardly open, the left end of the first part is communicated with the lower end of the second part, the left side of the upper end of the second part is provided with an upper positioning plate, an upward horizontal plane is arranged on the upper positioning plate, and the front end of the upper positioning plate is provided with a vertical shaft avoiding groove with a forward opening; the front end of the B-shaped piece channel is provided with an outlet of the B-shaped piece channel, and the rear end of the B-shaped piece channel is provided with an inlet of the B-shaped piece channel; the inlet of the second-shaped piece channel is opposite to the outlet of the second-shaped piece in front and back;

the second-shaped piece pusher comprises a rear cylinder, a front cylinder and a second-shaped push plate; the rear cylinder and the front cylinder are both cylinders with guide rods; the rear cylinder comprises a rear cylinder body and a rear cylinder piston rod; the front cylinder comprises a front cylinder body and a front cylinder piston rod; the B-shaped push plate is fixedly connected with a front cylinder piston rod; the front cylinder body is fixedly connected with a piston rod of the rear cylinder; the rear cylinder body is fixedly connected with the frame;

the front cylinder drives the Z-shaped push plate to translate from back to front, the Z-shaped push plate passes through a through hole of the Z-shaped push plate to push a first Z-shaped piece at the lower left in the cavity of the Z-shaped piece warehouse to enter a channel of the Z-shaped piece through an outlet of the Z-shaped piece, an upper horizontal part of the Z-shaped piece passes through the upper part of the upper positioning plate, an upright part of the Z-shaped piece passes through a second part of the channel of the Z-shaped piece, and a lower horizontal part of the Z-shaped piece passes through a first part of the channel of the Z-shaped piece;

the vertical shaft feeder comprises a vertical shaft feeding cylinder, a vertical shaft material supporting bracket, a vertical shaft warehouse and a vertical shaft push plate; the vertical shaft feeding cylinder comprises a vertical shaft feeding cylinder body and a vertical shaft feeding cylinder piston rod, and the vertical shaft feeding cylinder body is fixedly connected with the rack; the vertical shaft feeding cylinder piston rod is fixedly connected with the vertical shaft push plate; a vertical shaft support surface which faces upwards horizontally is arranged on the vertical shaft material support bracket; the vertical shaft material supporting bracket is fixedly connected with the frame; a cylindrical through inner hole is arranged on the vertical shaft storehouse; the lower opening of the inner hole of the vertical shaft warehouse faces to the left end of the vertical shaft support surface, and the vertical distance between the lower opening of the inner hole of the vertical shaft warehouse and the vertical shaft support surface is 1.05 to 1.2 times of the height of the vertical shaft; the vertical shaft warehouse is fixedly connected with the frame; a plurality of vertical shafts are stacked in the vertical shaft warehouse inner hole, the lowest vertical shaft falls on the lower vertical shaft support surface, and the vertical shaft feeding air cylinder drives the vertical shaft push plate to push the left end to the right end of the vertical shaft self-standing shaft support surface on the vertical shaft support surface from left to right;

the vertical shaft conveyor comprises a vertical shaft conveying slide block, a vertical shaft conveying bracket, a vertical shaft lifting cylinder, a vertical shaft parallel air claw, a clamping jaw and a vertical shaft conveying cylinder; the vertical shaft lifting cylinder is a cylinder with a guide rod; the vertical shaft lifting cylinder comprises a vertical shaft lifting cylinder body and a vertical shaft lifting cylinder piston rod; the vertical shaft lifting cylinder body and the vertical shaft transmission slide block are respectively fixedly connected with the vertical shaft transmission bracket; the vertical shaft conveying sliding block and the vertical shaft conveying linear guide rail form a linear guide rail pair; the vertical shaft parallel gas claw comprises a vertical shaft parallel gas claw cylinder body and two vertical shaft parallel gas claw bodies; the vertical shaft parallel gas claw cylinder body is fixedly connected with a vertical shaft lifting cylinder piston rod; the clamping jaw is L-shaped, the clamping jaw comprises an upright section and a horizontal section, and the upper end of the upright section of the clamping jaw is fixedly connected with the first end of the horizontal section of the clamping jaw; the two lower ends of the two clamping jaw vertical sections are respectively and fixedly connected with two vertical shaft parallel gas claw bodies; the second end of the clamping jaw horizontal section is provided with a V-shaped groove, and the openings of the two V-shaped grooves of the two clamping jaw horizontal sections are opposite; the vertical shaft parallel gas claw drives the two clamping jaws to relatively translate, and the two V-shaped grooves clamp the vertical shaft in the middle; the vertical shaft lifting cylinder drives the vertical shaft parallel gas claw, the combination body of the two clamping jaws and the vertical shaft to move upwards; the vertical shaft conveying cylinder comprises a vertical shaft conveying cylinder body and a vertical shaft conveying cylinder piston rod; the vertical shaft conveying cylinder body is fixedly connected with the frame; the piston rod of the vertical shaft transmission cylinder is fixedly connected with the vertical shaft transmission bracket; the vertical shaft conveying cylinder drives the vertical shaft conveying sliding block, the vertical shaft conveying bracket, the vertical shaft lifting cylinder, the vertical shaft parallel air claw, the clamping jaw and the vertical shaft to move horizontally along the vertical shaft conveying linear guide rail from left to right;

the positioning welding assembly comprises a positioning welding support plate, a rotary driving electric cylinder, a rotating assembly and a rack; the positioning welding support plate is fixedly connected with the frame; the rotary driving electric cylinder comprises a rotary driving electric cylinder body and a rotary driving electric cylinder push rod; the rotary driving electric cylinder body is fixedly connected with the positioning welding support plate; the rack is fixedly connected with the rotary driving electric cylinder push rod;

the rotating assembly comprises a rotating bracket, a rotating shaft, a rotating gear, a double-compound cylinder, a semi-ring pressing sleeve, a positioning rod, a welding gun cylinder and a welding gun; the lower end of the rotating shaft is fixedly connected to the first end of the rotating bracket, the upper end of the rotating shaft is fixedly connected with the rotating gear, and the rotating shaft is connected with the rack through a revolute pair;

the double-composite cylinder comprises a double-composite cylinder body, a circular tube-shaped piston rod, a circular ring-shaped piston, a cylindrical piston rod and a cylindrical piston; two cavities are arranged in the double-composite cylinder body, the two cavities are respectively a circular cylinder cavity and a cylindrical cylinder cavity, and the circular cylinder cavity is arranged at the periphery of the cylindrical cylinder cavity; the lower end of the circular cylinder cavity is provided with a circular hole communicated with the outside, and the lower end of the cylindrical cylinder cavity is provided with a cylindrical hole communicated with the outside; the upper end of the circular tube-shaped piston rod is fixedly connected with the lower end of the circular piston; the circular piston is matched with the circular cylinder cavity, and the circular tube-shaped piston rod is matched with a hole at the lower end of the circular cylinder cavity to form a circular cylinder; the upper end of the cylindrical piston rod is fixedly connected with the lower end of the cylindrical piston; the cylindrical piston is matched with the cylindrical cylinder cavity, and the cylindrical piston rod is matched with a hole at the lower end of the cylindrical cylinder cavity to form a cylindrical cylinder; the annular cylinder and the cylindrical cylinder are single-acting cylinders which are reset by springs, and upper cavities, namely rodless cavities, of the annular cylinder and the cylindrical cylinder are respectively communicated with a high-pressure air source through pipelines; the lower end of the cylindrical piston rod is fixedly connected with the upper end of the positioning rod;

the semi-ring pressing sleeve is internally provided with a through hole from top to bottom; the upper opening of the inner hole of the semi-ring pressing sleeve is a semi-ring upper annular surface which is fixedly connected with an annular surface at the lower end of the circular tube-shaped piston rod; the lower opening of the inner hole of the semi-ring pressing sleeve is a circular ring hole, then a lower side surface gap of the semi-ring pressing sleeve is arranged on the lower opening and the side wall, the lower side surface gap of the semi-ring pressing sleeve is cut off half of the lower opening of the inner hole of the semi-ring pressing sleeve, and the rest half is a semi-circular ring plane; the axis of the semicircular plane, the axis of the positioning rod and the axis of the rotating shaft are on the same straight line; compared with the parallel use of two cylindrical cylinders, the double-composite cylinder has compact structure and small occupied volume, and the thrust direction of the cylinder just points to the force application point of the second-shaped part;

the welding gun cylinder comprises a welding gun cylinder body and a welding gun cylinder piston rod, the welding gun cylinder body is fixedly connected to the second end of the rotating support, and the welding gun cylinder piston rod is fixedly connected with a welding gun; the welding gun and the lower side gap of the semi-ring sleeve are positioned on the same side of the semi-ring pressing sleeve;

the rotary driving electric cylinder comprises a rotary driving electric cylinder body and a rotary driving electric cylinder push rod; the rotary driving electric cylinder body is fixedly connected with the positioning welding support plate; the rack is fixedly connected with the rotary driving electric cylinder push rod; the rack is meshed with the rotating gear;

the cylindrical cylinder drives the positioning rod to move downwards in a horizontal moving mode, and the lower end of the positioning rod is inserted into the upper end of the vertical shaft hole of the lower second-shaped part, so that the purpose of accurately positioning the vertical shaft hole is achieved; the ring-shaped air cylinder drives the semi-ring pressing sleeve to move downwards, the upper surface of the upper horizontal part of the second-shaped part is pressed tightly by the plane of the semi-ring, and the lower surface of the upper horizontal part is attached to the upward horizontal surface of the upper positioning plate, so that the lower surface of the upper horizontal part is accurately positioned;

the vertical shaft conveying cylinder drives a vertical shaft conveying sliding block, a vertical shaft conveying support, a vertical shaft lifting cylinder, a vertical shaft parallel air claw, a clamping jaw and a vertical shaft to translate from left to right to a vertical shaft positioned right below a vertical shaft hole of the second-shaped part, the vertical shaft lifting cylinder drives a vertical shaft parallel air claw, a combination of the two clamping jaws and the vertical shaft to translate upwards, and the vertical shaft is inserted into the lower end of the vertical shaft hole of the second-shaped part from the lower part; the position of the vertical shaft hole is accurately positioned at the moment, so that the vertical shaft hole can be smoothly inserted;

the rotary driving electric cylinder drives the rack to translate, the rack drives the rotary component to rotate through the rotary gear, the plane of the semicircular ring and the upper surface of the upper horizontal part of the B-shaped part keep compact and slide friction, the welding gun cylinder drives the welding gun to penetrate through a notch on the lower side surface of the semicircular ring and extend into an inner hole of the semicircular pressing sleeve, the welding gun spot-welds a vertical shaft hole of the B-shaped part and an adjacent edge of a vertical shaft, and the B-shaped part and the vertical shaft are combined into a pressing plate component;

the rear cylinder drives the combination of the front cylinder and the Z-shaped push plate to translate from back to front, and the Z-shaped push plate pushes the pressure plate assembly to be separated from the channel block and fall into a finished product box at the lower front part.

The vertical shaft feeder also comprises two vertical shaft damping strips, the left end of the vertical shaft material supporting bracket is also provided with two vertical damping strip mounting plates, the vertical damping strip mounting plates are provided with upright surfaces facing to the right, and the left ends of the two vertical shaft damping strips are respectively fixedly connected with the two upright surfaces on the vertical damping strip mounting plates; a push plate channel is arranged between the two damping strip mounting vertical plates; a narrow space in the left-right direction is formed between the two vertical shaft damping strips, wherein the front vertical shaft damping strip and the rear vertical shaft damping strip are respectively provided with an inner circular arc-shaped curved surface at the left end, the two inner circular arc-shaped curved surfaces are on the same vertical cylindrical surface with the same axial lead, and a space surrounded by the two inner circular arc-shaped curved surfaces is a vertical shaft supporting space; the right side of the inner circular arc-shaped curved surface is provided with a vertical shaft damping inclined plane respectively, the left ends of the two vertical shaft damping inclined planes are smaller in distance size, and the right sides of the two vertical shaft damping inclined planes are larger in distance size; the vertical shaft falling from the vertical shaft warehouse quickly touches the vertical shaft support surface, and can be statically stopped on the vertical shaft support surface after rebounding, and can also be cracked, fallen and uncertain in state;

the vertical shaft feeding cylinder drives a vertical shaft push plate to push the left end of a vertical shaft self-supporting shaft supporting surface on the vertical shaft supporting surface to the right end, the vertical shaft respectively extrudes a front inner arc-shaped curved surface and a rear inner arc-shaped curved surface in the front direction and the rear direction, two vertical shaft damping strips are extruded to generate elastic deformation and are separated in the front direction and the rear direction to avoid a passage for the vertical shaft, the vertical shaft enters a clamping space of a vertical shaft damping inclined surface, the clamping force applied when the vertical shaft is positioned at the left end of the vertical shaft damping inclined surface is larger, the clamping force continuously translated rightwards is gradually reduced until the clamping force is zero, and then the vertical shaft is separated from the space between the vertical shaft; therefore, the vertical shaft push plate and the vertical shaft can be ensured to be attached together, and unexpected states such as collapse, flying, toppling and the like are avoided.

The direction control valve of the B-shaped piece cylinder is a middle pressure relief type five-port three-position electromagnetic valve, the B-shaped piece cylinder is in a middle position when the B-shaped push plate translates, and thrust is not generated on the B-shaped piece so as to reduce friction force applied to the B-shaped push plate.

The vertical shaft damping strip is made of elastic materials, and the materials can be copper, industrial rubber or nylon.

The working process of the present invention is as follows.

0) A plurality of second-shaped pieces are placed in the cavity of the second-shaped piece warehouse, the middle pressure-relief type five-port three-position electromagnetic valve is reversed, the second-shaped piece air cylinder is started, the middle pressure-relief type five-port three-position electromagnetic valve is reversed to the middle position after the plurality of second-shaped pieces are compacted, and the second-shaped piece push block only has small pressure generated by gravity on the plurality of second-shaped pieces and does not have pressure generated by high-pressure air. A plurality of vertical shafts are put into the vertical shaft storeroom, and the lowest vertical shaft falls into a vertical shaft supporting space on the vertical shaft bearing surface and under the vertical shaft storeroom.

1) The front cylinder drives the Z-shaped push plate to move forwards from back to front, the Z-shaped push plate passes through a through hole of the Z-shaped push plate to push a first Z-shaped piece at the lower left side in the cavity of the Z-shaped piece warehouse to enter a channel of the Z-shaped piece through an outlet of the Z-shaped piece, an upper horizontal part of the Z-shaped piece passes through the upper part of the upper positioning plate, an upright part of the Z-shaped piece passes through a second part of the channel of the Z-shaped piece, and a lower horizontal part of the Z-shaped piece passes through a first part of the channel of the Z-.

2) The cylindrical cylinder drives the positioning rod to move downwards in a horizontal moving mode, and the lower end of the positioning rod is inserted into the upper end of the vertical shaft hole of the second-shaped part above the vertical shaft avoiding groove, so that the purpose of accurately positioning the vertical shaft hole is achieved.

3) The vertical shaft feeding cylinder drives the vertical shaft push plate to push the left end of the vertical shaft self-supporting shaft support surface to the right end under the vertical shaft warehouse, on the vertical shaft support surface and in the vertical shaft supporting space, the vertical shaft firstly extrudes two inner circular arc-shaped curved surfaces to the front side and the rear side, two vertical shaft damping strips are extruded to generate elastic deformation and are separated to the front side and the rear side so as to avoid a passage for the vertical shaft, the vertical shaft enters the clamping space of the vertical shaft damping inclined surface, the clamping force applied when the vertical shaft is positioned at the left end of the vertical shaft damping inclined surface is larger, the clamping force applied when the vertical shaft continues to translate rightwards is gradually reduced until the clamping force becomes zero, and then the vertical shaft damping strip is separated from the space between.

4) The parallel gas claw of vertical scroll drives two clamping jaws and relatively translates, and two V type grooves clamp the lower extreme that is located the vertical scroll at vertical scroll holding surface right-hand member.

5) The vertical shaft conveying cylinder drives the vertical shaft conveying sliding block, the vertical shaft conveying support, the vertical shaft lifting cylinder, the vertical shaft parallel air claw, the clamping jaw and the vertical shaft to translate from left to right to the vertical shaft which is located right below the vertical shaft hole.

Meanwhile, the vertical shaft feeding cylinder drives the vertical shaft push plate to move back to the initial position from the right phase to the left side in a horizontal translation mode, and the vertical shaft which is close to the upper portion of the vertical shaft warehouse falls onto a vertical shaft support surface and in a vertical shaft supporting space.

6) The vertical shaft lifting cylinder drives the vertical shaft parallel gas claw, the combination body of the two clamping jaws and the vertical shaft to move upwards, and the vertical shaft is inserted into the lower end of the vertical shaft hole of the second-shaped part from the lower part.

7) The semi-ring pressing sleeve is driven by the circular cylinder to move downwards, the upper surface of the upper horizontal part of the second-shaped part is pressed tightly by the plane of the semi-ring, the lower surface of the upper horizontal part is attached to the upward horizontal surface of the upper positioning plate, and therefore the lower surface of the upper horizontal part is accurately positioned.

8) The cylindrical cylinder drives the positioning rod to move upwards and horizontally away from the vertical shaft hole, so that a passage is avoided for the welding gun.

9) The welding gun cylinder drives the welding gun to pass through the notch on the lower side surface of the semi-ring sleeve and translate towards the adjacent edge of the vertical shaft hole and the vertical shaft, the welding gun spot-welds the adjacent edge of the vertical shaft hole and the vertical shaft, and then the welding gun cylinder drives the welding gun to translate reversely away from the adjacent edge of the vertical shaft hole and the vertical shaft.

10) The rotary driving electric cylinder drives the rotary component to rotate 90 degrees through the combination of the rack and the rotary gear and then stops, during the process, the semi-circular plane always presses the upper surface of the upper horizontal part of the second-shaped part under the driving action of the circular cylinder, and sliding friction is formed between the semi-circular plane and the upper surface of the upper horizontal part.

11) Repeat step 9).

12) Repeating the steps 10) to 11) three times, and performing spot welding on the vertical shaft hole and the annular adjacent edge of the vertical shaft four times in total, wherein the second-shaped part and the vertical shaft are combined together to form the pressure plate assembly 1.

13) Waiting for the weld spot to cool.

14) The parallel gas claw of vertical axis drives two clamping jaws to translate relatively, and the two V-shaped grooves are separated from the left and right sides and leave the vertical axis.

15) The vertical shaft lifting cylinder drives the combination of the parallel gas claw and the two clamping jaws of the vertical shaft to move downwards, and the two V-shaped grooves are separated from the front and rear side spaces of the vertical shaft.

16) The vertical shaft conveying cylinder drives the vertical shaft conveying sliding block, the vertical shaft conveying support, the vertical shaft lifting cylinder, the vertical shaft parallel air claw and the clamping jaw to translate from right to left to the front and back sides of the vertical shaft with the two V-shaped grooves at the right end of the vertical shaft supporting surface to wait for the next working cycle.

17) The ring-shaped cylinder drives the semi-ring pressing sleeve to move upwards and move away from the upper surface of the upper horizontal part of the second-shaped part.

18) The rear cylinder drives the combination of the front cylinder and the Z-shaped push plate to translate from back to front, and the Z-shaped push plate pushes the pressure plate assembly to translate away from the channel block and fall into a finished product box at the lower front part.

The invention has the beneficial effects that: the upper horizontal part is compacted by mechanical force, and the vertical shaft is clamped, so that the upper horizontal part and the vertical shaft are always kept in a vertical relation until welding and cooling are finished, the accuracy of form and position tolerance of a finished product pressing plate assembly can be ensured to the maximum extent, welding deformation is avoided, and the yield is improved; the automatic unloading of accomplishing, self-holding and welding reduce the amount of labour and intensity of labour, improve work efficiency.

Drawings

FIG. 1 is a schematic three-dimensional structure of an embodiment of the present invention;

FIG. 2 is a schematic three-dimensional structure of the platen assembly 1;

fig. 3 is a schematic three-dimensional structure of the channel block 2;

FIG. 4 is a schematic partially cut-away view of the three-dimensional structure of the second library assembly 3;

FIG. 5 is a schematic three-dimensional view of the second pusher 4;

FIG. 6 is a schematic three-dimensional structure of a tack-welded assembly 5;

fig. 7 is a schematic three-dimensional structure of the rotating member 53;

fig. 8 is a partial cross-sectional view of the three-dimensional structure of the double compound cylinder 534;

fig. 9 is a schematic three-dimensional structure of the half-ring pressing sleeve 535;

figure 10 is a schematic three-dimensional view of the vertical shaft feeder 6;

FIG. 11 is a top view of the combination of a vertical shaft stock support 62 and two vertical shaft damping strips 64;

figure 12 is a schematic three-dimensional structure of the vertical shaft conveyor 7;

FIG. 13 is a schematic three-dimensional view of the jaw 75;

shown in the figure: 1. a platen assembly; 11. a second piece; 111. an upper horizontal portion; 112. an upright portion; 113. a lower horizontal portion; 114. a vertical shaft hole; 12. a vertical shaft;

2. a channel block; 21. a second piece channel; 211. a second piece channel inlet; 212. a second-piece channel outlet; 22. an upper positioning plate; 23. a vertical shaft avoidance groove;

3. a second-library component; 31. b, a component library; 311. an inner cavity of the second-type component library; 312. the bottom surface of the B-shaped element library; 313. b-shaped push plate via holes; 314. an B-piece outlet; 315. an inlet of the second piece; 32. a B-shaped piece cylinder; 321. a B-shaped cylinder body; 322. a cylinder piston rod of the second-shaped piece; 33. a second-shaped piece push block; 331. b, pushing the surface of the workpiece;

4. a second-piece pusher; 41. a rear cylinder; 411. a rear cylinder block; 412. a rear cylinder piston rod; 42. a front cylinder; 421. a front cylinder block; 422. a front cylinder piston rod; 43. a B-shaped push plate;

5. positioning and welding the assembly; 51. positioning and welding the support plate; 52. a rotary driving electric cylinder; 521. a rotation driving cylinder block; 522. rotationally driving the electric cylinder push rod; 53. a rotating assembly; 531. rotating the bracket; 532. a rotating shaft; 533. a rotating gear; 534. a double compound cylinder; 5341. a double composite cylinder body; 53411. a circular cylinder cavity; 53412. a cylindrical cylinder chamber; 5342. a circular tube-shaped piston rod; 5343. a ring-shaped piston; 5344. a cylindrical piston rod; 5345. a cylindrical piston; 535. semi-ring pressing sleeve; 5351. the inner cavity of the half-ring sleeve; 5352. the semi-ring sleeve is sleeved with a torus; 5353. a notch on the lower side surface of the semi-ring sleeve; 5354. a semicircular plane; 536. positioning a rod; 537. a welding gun cylinder; 5371. a welding gun cylinder block; 5372. a welding gun cylinder piston rod; 538. a welding gun; 54. a rack; 55. a rack back pulley;

6. a vertical shaft feeder; 61. a vertical shaft feeding cylinder; 611. a vertical shaft feed cylinder block; 612. a vertical shaft feeding cylinder piston rod; 62. a vertical shaft material supporting bracket; 621. a vertical shaft bearing surface; 622. the damping strips are provided with vertical plates; 623. a push plate channel; 63. a vertical shaft library; 64. a vertical shaft damping strip; 641. a vertical shaft holding space; 642. a vertical shaft damping ramp; 65. a vertical shaft push plate;

7. a vertical shaft conveyor; 71. a vertical shaft transfer slide block; 72. a vertical shaft transfer bracket; 73. a vertical shaft lifting cylinder; 731. a vertical shaft lifting cylinder body; 732. a vertical shaft lifting cylinder piston rod; 74. a vertical shaft parallel gas claw; 741. a vertical shaft parallel air claw cylinder body; 742. a vertical shaft parallel gas claw body; 75. a clamping jaw; 751, a V-shaped groove; 76. a vertical shaft transfer cylinder; 761. a vertical shaft transfer cylinder block; 762. a vertical shaft transfer cylinder piston rod;

8. the vertical shaft transmits the linear guide rail; 9. a frame; 10. and (5) a finished product box.

Detailed Description

The invention is further illustrated with reference to the following figures and examples:

example (b): see fig. 1-13.

An automatic accurate welding workstation of a pressing plate for a vehicle-mounted operating table comprises a channel block 2, an B-shaped member library component 3, an B-shaped member pusher 4, a positioning welding component 5, a vertical shaft feeder 6, a vertical shaft conveyor 7, a vertical shaft conveying linear guide rail 8 and a rack 9; the vertical shaft transmission linear guide rail 8 is fixedly connected with the rack 9, and the vertical shaft transmission linear guide rail 8 is arranged along the left-right horizontal direction;

the B-shaped piece library component 3 comprises a B-shaped piece library 31, a B-shaped piece cylinder 32 and a B-shaped piece push block 33; the B-shaped piece storeroom 31 is fixedly connected with the frame 9; a cavity extending in the upper right-lower left direction is arranged in the B-shaped member library 31, a B-shaped member library bottom surface 312 is arranged at the lower left of the cavity of the B-shaped member library 31, the B-shaped member library bottom surface 312 comprises two upward horizontal surfaces and a right vertical surface, the horizontal surface at the left side is higher than the horizontal surface at the right side, the right end of the horizontal surface at the left side is connected with the upper end of the vertical surface, and the left end of the horizontal surface at the right side is connected with the lower end of the vertical surface; the lower surface of the upper horizontal part 111 of the first B-shaped part 11 at the lower left in the cavity of the B-shaped part storage 31 is attached to the horizontal surface at the left side, the left side surface of the upright part 112 is attached to the upright surface, and the lower surface of the lower horizontal part 113 is attached to the horizontal surface at the right side; the second member 11 is stacked on the upper right of the first second member 11, the lower surface of the upper horizontal portion 111 of the second member 11 is attached to the upper surface of the upper horizontal portion 111 of the first second member 11, the left side surface of the upright portion 112 of the second member 11 is attached to the right side surface of the upright portion 112 of the first second member 11, and the lower surface of the lower horizontal portion 113 of the second member 11 is attached to the upper surface of the lower horizontal portion 113 of the first second member 11; a third second-shaped part 11 is stacked on the upper right of the second-shaped part 11 in the same manner, and so on, and a plurality of second-shaped parts 11 are stacked in the cavity of the second-shaped part warehouse 31; a Z-shaped push plate through hole 313 is formed in the rear side of the left lower part of the cavity of the Z-shaped member warehouse 31, and a Z-shaped member outlet 314 is formed in the front side of the left lower part of the cavity of the Z-shaped member warehouse 31; the second-piece cylinder 32 is a cylinder with a guide rod, and the second-piece cylinder 32 comprises a second-piece cylinder body 321 and a second-piece cylinder piston rod 322; the second-shaped piece push block 33 is fixedly connected with a second-shaped piece cylinder piston rod 322; the second-piece cylinder body 321 is fixedly connected with the right upper end of the second-piece warehouse 31; the second-shaped piece pushing block 33 is provided with a second-shaped piece pushing surface 331, the second-shaped piece pushing surface 331 comprises two downward horizontal surfaces and a left vertical surface, the horizontal surface on the left side of the second-shaped piece pushing surface 331 is higher, the horizontal surface on the right side is lower, the right end of the horizontal surface on the left side is connected with the upper end of the vertical surface, and the left end of the horizontal surface on the right side is connected with the lower end of the vertical surface; the B-shaped piece air cylinder 32 drives the B-shaped piece pushing block 33 to move horizontally towards the lower left side, the B-shaped piece pushing surface 331 pushes one of the plurality of B-shaped pieces 11 stacked on the upper right side towards the lower left side, the horizontal plane on the left side of the B-shaped piece pushing surface 331 is tightly attached to the upper surface of the upper horizontal part 111 of the upper right side B-shaped piece 11, the vertical plane of the B-shaped piece pushing surface 331 is tightly attached to the right side surface of the vertical part 112 of the upper right side B-shaped piece 11, the horizontal plane on the right side of the B-shaped piece pushing surface 331 is tightly attached to the upper surface of the lower horizontal part 113 of the upper right side B-;

the channel block 2 is fixedly connected with the frame 9; a front-back through B-shaped piece channel 21 is arranged in the channel block 2, the cross section of the B-shaped piece channel 21 is L-shaped, the cross section of the B-shaped piece channel 21 comprises two parts, the first part is narrow in size in the vertical direction and wide in the left-right direction, the second part is narrow in size in the left-right direction and wide in size in the vertical direction and is upward opened, the left end of the first part is communicated with the lower end of the second part, an upper positioning plate 22 is arranged on the left side of the upper end of the second part, an upward horizontal plane is arranged on the upper positioning plate 22, and a vertical shaft avoiding groove 23 with a forward opening is arranged at the front end of the upper positioning plate 22; the front end of the B-shaped piece channel 21 is provided with a B-shaped piece channel outlet 212, and the rear end of the B-shaped piece channel 21 is provided with a B-shaped piece channel inlet 211; the second-piece channel inlet 211 and the second-piece outlet 314 are opposite one another in the front-to-back direction;

the second-piece pusher 4 comprises a rear cylinder 41, a front cylinder 42 and a second-shaped push plate 43; the rear cylinder 41 and the front cylinder 42 are both of the cylinder type with a guide rod; the rear cylinder 41 includes a rear cylinder block 411 and a rear cylinder piston rod 412; the front cylinder 42 includes a front cylinder block 421 and a front cylinder piston rod 422; the B-shaped push plate 43 is fixedly connected with the front cylinder piston rod 422; the front cylinder block 421 and the rear cylinder piston rod 412 are fixedly connected; the rear cylinder block 411 is fixedly connected with the frame 9;

the front cylinder 42 drives the Z-shaped push plate 43 to translate from back to front, the Z-shaped push plate 43 passes through a Z-shaped push plate through hole 313, a first Z-shaped piece 11 at the lower left in the cavity of the Z-shaped piece warehouse 31 is pushed to enter the Z-shaped piece channel 21 through a Z-shaped piece outlet 314, the upper horizontal part 111 of the Z-shaped piece 11 passes through the upper part of the upper positioning plate 22, the vertical part 112 of the Z-shaped piece 11 passes through the second part of the Z-shaped piece channel 21, the lower horizontal part 113 of the Z-shaped piece 11 passes through the first part of the Z-shaped piece channel 21 until the vertical shaft hole 114 of the Z-shaped piece 11 is;

the vertical shaft feeder 6 comprises a vertical shaft feeding cylinder 61, a vertical shaft material supporting bracket 62, a vertical shaft library 63 and a vertical shaft push plate 65; the vertical shaft feeding cylinder 61 comprises a vertical shaft feeding cylinder body 611 and a vertical shaft feeding cylinder piston rod 612, and the vertical shaft feeding cylinder body 611 is fixedly connected with the frame 9; the vertical shaft feeding cylinder piston rod 612 is fixedly connected with the vertical shaft push plate 65; a vertical shaft holding surface 621 which is upward horizontally is arranged on the vertical shaft holding material bracket 62; the vertical shaft material supporting bracket 62 is fixedly connected with the frame 9; a cylindrical through inner hole is formed in the vertical shaft storage 63; the lower opening of the inner hole of the vertical shaft storehouse 63 faces the left end of the vertical shaft support surface 621, and the vertical distance between the lower opening of the inner hole of the vertical shaft storehouse 63 and the vertical shaft support surface 621 is 1.2 times of the height of the vertical shaft 12; the vertical shaft storehouse 63 is fixedly connected with the frame 9; a plurality of vertical shafts 12 are piled in the inner holes of the vertical shaft storehouses 63, the lowest vertical shaft 12 falls on a lower vertical shaft support surface 621, the vertical shaft feeding air cylinder 61 drives a vertical shaft push plate 65 to push the left end of the vertical shaft 12 on the vertical shaft support surface 621 to the right end from the left side to the right side;

the vertical shaft conveyor 7 comprises a vertical shaft conveying slide block 71, a vertical shaft conveying bracket 72, a vertical shaft lifting air cylinder 73, a vertical shaft parallel air claw 74, a clamping jaw 75 and a vertical shaft conveying air cylinder 76; the vertical shaft lifting cylinder 73 is a cylinder with a guide rod; the vertical shaft lifting cylinder 73 comprises a vertical shaft lifting cylinder body 731 and a vertical shaft lifting cylinder piston rod 732; the vertical shaft lifting cylinder 731 and the vertical shaft transmission slide block 71 are respectively and fixedly connected with a vertical shaft transmission bracket 72; the vertical shaft transmission slide block 71 and the vertical shaft transmission linear guide rail 8 form a linear guide rail pair; the vertical shaft parallel air gripper 74 comprises a vertical shaft parallel air gripper cylinder 741 and two vertical shaft parallel air gripper bodies 742; the vertical shaft parallel air claw cylinder body 741 is fixedly connected with a vertical shaft lifting cylinder piston rod 732; the clamping jaw 75 is L-shaped, the clamping jaw 75 comprises an upright section and a horizontal section, and the upper end of the upright section of the clamping jaw 75 is fixedly connected with the first end of the horizontal section of the clamping jaw 75; the two lower ends of the upright sections of the two clamping jaws 75 are fixedly connected with two vertical shaft parallel gas claw bodies 742 respectively; a V-shaped groove 751 is arranged at the second end of the horizontal section of the clamping jaw 75, and the two V-shaped grooves 751 of the horizontal sections of the two clamping jaws 75 are opposite in opening; the vertical shaft parallel air claw 74 drives the two clamping jaws 75 to relatively translate, and the two V-shaped grooves 751 clamp the vertical shaft 12 in the middle; the vertical shaft lifting cylinder 73 drives the combination of the vertical shaft parallel air claw 74, the two clamping claws 75 and the vertical shaft 12 to move upwards in a translation way; the vertical shaft transfer cylinder 76 includes a vertical shaft transfer cylinder block 761 and a vertical shaft transfer cylinder piston rod 762; the vertical shaft transmission cylinder block 761 is fixedly connected with the frame 9; the vertical shaft transfer cylinder piston rod 762 is fixedly connected with the vertical shaft transfer bracket 72; the vertical shaft transfer cylinder 76 drives the combination of the vertical shaft transfer slide block 71, the vertical shaft transfer bracket 72, the vertical shaft lifting cylinder 73, the vertical shaft parallel gas claw 74, the clamping jaw 75 and the vertical shaft 12 to translate from left to right along the vertical shaft transfer linear guide rail 8;

the positioning welding assembly 5 comprises a positioning welding support plate 51, a rotary driving electric cylinder 52, a rotating assembly 53 and a rack 54; the positioning welding support plate 51 is fixedly connected with the frame 9; the rotation driving electric cylinder 52 includes a rotation driving electric cylinder block 521 and a rotation driving electric cylinder push rod 522; the rotary driving electric cylinder 521 is fixedly connected with the positioning welding support plate 51; the rack 54 is fixedly connected with a rotary driving electric cylinder push rod 522;

the rotating assembly 53 comprises a rotating bracket 531, a rotating shaft 532, a rotating gear 533, a double-compound cylinder 534, a semi-ring pressing sleeve 535, a positioning rod 536, a welding gun cylinder 537 and a welding gun 538; the lower end of the rotating shaft 532 is fixedly connected to the first end of the rotating bracket 531, the upper end of the rotating shaft 532 is fixedly connected to the rotating gear 533, and the rotating shaft 532 is connected to the frame 9 through a revolute pair;

the double-compound cylinder 534 comprises a double-compound cylinder body 5341, a circular tube-shaped piston rod 5342, a circular ring-shaped piston 5343, a cylindrical piston rod 5344 and a cylindrical piston 5345; two cavities are arranged in the double-composite cylinder body 5341, the two cavities are respectively a circular cylinder cavity 53411 and a cylindrical cylinder cavity 53412, and the circular cylinder cavity 53411 is arranged on the periphery of the cylindrical cylinder cavity 53412; the lower end of the circular cylinder cavity 53411 is provided with a circular hole communicated with the outside, and the lower end of the cylindrical cylinder cavity 53412 is provided with a cylindrical hole communicated with the outside; the upper end of the circular tube-shaped piston rod 5342 is fixedly connected with the lower end of the circular ring-shaped piston 5343; the circular piston 5343 is matched with the circular cylinder cavity 53411, and the circular tube-shaped piston rod 5342 is matched with a hole at the lower end of the circular cylinder cavity 53411 to form a circular cylinder; the upper end of the cylindrical piston rod 5344 is fixedly connected with the lower end of the cylindrical piston 5345; the cylindrical piston 5345 is matched with the cylindrical cylinder cavity 53412, and the cylindrical piston rod 5344 is matched with a hole at the lower end of the cylindrical cylinder cavity 53412 to form a cylindrical cylinder; the annular cylinder and the cylindrical cylinder are single-acting cylinders which are reset by springs, and upper cavities, namely rodless cavities, of the annular cylinder and the cylindrical cylinder are respectively communicated with a high-pressure air source through pipelines; the lower end of the cylindrical piston rod 5344 is fixedly connected with the upper end of the positioning rod 536;

a through hole is arranged in the semi-ring pressing sleeve 535; the upper opening of the inner hole of the semi-ring pressing sleeve 535 is a semi-ring upper annular surface 5352, and the semi-ring upper annular surface 5352 is fixedly connected with an annular surface at the lower end of a circular tube-shaped piston rod 5342; the lower opening of the inner hole of the semi-ring pressing sleeve 535 is a circular ring hole, then a semi-ring sleeve lower side surface gap 5353 is arranged on the lower opening and the side wall, the arranged semi-ring sleeve lower side surface gap 5353 cuts the lower opening of the inner hole of the semi-ring pressing sleeve 535 by half, and the remaining half is a semi-ring plane 5354; the axis of the semicircular plane 5354, the axis of the positioning rod 536 and the axis of the rotating shaft 532 are on the same straight line; compared with the two cylindrical cylinders which are used side by side, the double-composite cylinder 534 has a compact structure and small occupied volume, and the thrust direction of the cylinder just points to the force application point of the second-shaped part 11;

the welding gun cylinder 537 comprises a welding gun cylinder block 5371 and a welding gun cylinder piston rod 5372, the welding gun cylinder block 5371 is fixedly connected to the second end of the rotating bracket 531, and the welding gun cylinder piston rod 5372 is fixedly connected with the welding gun 538; the welding gun 538 and the notch 5353 on the lower side of the half collar are on the same side of the half collar 535;

the rotation driving electric cylinder 52 includes a rotation driving electric cylinder block 521 and a rotation driving electric cylinder push rod 522; the rotary driving electric cylinder 521 is fixedly connected with the positioning welding support plate 51; the rack 54 is fixedly connected with a rotary driving electric cylinder push rod 522; the rack 54 is engaged with the rotary gear 533;

the cylindrical cylinder drives the positioning rod 536 to move downwards in a translation mode, and the lower end of the positioning rod 536 is inserted into the upper end of the vertical shaft hole 114 of the lower second-hand member 11, so that the purpose of accurately positioning the vertical shaft hole 114 is achieved; the semi-ring pressing sleeve 535 driven by the circular cylinder moves downwards, the semi-ring plane 5354 presses the upper surface of the upper horizontal part 111 of the second part 11, so that the lower surface of the upper horizontal part 111 is attached to the upward horizontal surface of the upper positioning plate 22, and the lower surface of the upper horizontal part 111 is accurately positioned;

the vertical shaft transfer cylinder 76 drives the vertical shaft transfer slide block 71, the vertical shaft transfer bracket 72, the vertical shaft lifting cylinder 73, the vertical shaft parallel air claw 74, the clamping jaw 75 and the vertical shaft 12 to translate from left to right to the vertical shaft 12 which is positioned right below a vertical shaft hole 114 of the B-shaped part 11, the vertical shaft lifting cylinder 73 drives the vertical shaft parallel air claw 74, the two clamping jaws 75 and the vertical shaft 12 to translate upwards, and the vertical shaft 12 is inserted into the lower end of the vertical shaft hole 114 of the B-shaped part 11 from the lower part; the position of the vertical shaft hole 114 is accurately positioned at the moment, so that the vertical shaft hole can be smoothly inserted;

the rotary driving electric cylinder 52 drives the rack 54 to translate, the rack 54 drives the rotary assembly 53 to rotate through the rotary gear 533, the semicircular plane 5354 keeps pressing and sliding friction with the upper surface of the upper horizontal part 111 of the B-shaped part 11, the welding gun cylinder 537 drives the welding gun 538 to extend into the inner hole of the semicircular pressing sleeve 535 through the notch 5353 on the lower side surface of the semicircular pressing sleeve, the welding gun 538 spot-welds the vertical shaft hole 114 of the B-shaped part 11 and the adjacent edge of the vertical shaft 12, and the B-shaped part 11 and the vertical shaft 12 are combined into the pressing plate assembly 1;

the rear cylinder 41 drives the combination of the front cylinder 42 and the Z-shaped push plate 43 to translate from back to front, and the Z-shaped push plate 43 pushes the pressure plate assembly 1 to be separated from the channel block 2 and fall into the finished product box 10 at the front lower part.

The vertical shaft feeder 6 further comprises two vertical shaft damping strips 64, the left end of the vertical shaft material supporting bracket 62 is further provided with two damping strip mounting vertical plates 622, the damping strip mounting vertical plates 622 are provided with right vertical surfaces, and the left ends of the two vertical shaft damping strips 64 are respectively fixedly connected with the two vertical surfaces on the damping strip mounting vertical plates 622; a push plate channel 623 is arranged between the two damping strip mounting vertical plates 622; a narrow space in the left-right direction is formed between the two vertical shaft damping strips 64, wherein the front vertical shaft damping strip 64 and the rear vertical shaft damping strip 64 are respectively provided with an inner circular arc-shaped curved surface at the left end, the two inner circular arc-shaped curved surfaces are on the same vertical cylindrical surface with the same axial lead, and a space surrounded by the two inner circular arc-shaped curved surfaces is a vertical shaft supporting space 641; the right side of the inner circular arc-shaped curved surface is provided with vertical shaft damping inclined planes 642 respectively, the left ends of the two vertical shaft damping inclined planes 642 are smaller in distance size, and the right sides of the two vertical shaft damping inclined planes are larger in distance size; the vertical shaft 12 falling from the vertical shaft library 63 quickly touches the vertical shaft support surface 621, and can be statically stopped on the vertical shaft support surface 621 after rebounding, and can also be cracked, fallen and uncertain in state, if the vertical shaft support space 641 is arranged, the state of the falling vertical shaft can be determined, the movement freedom of the falling vertical shaft can be limited, and the falling vertical shaft can be statically stopped on the vertical shaft support surface 621, so that cracking and falling can be avoided;

the vertical shaft feeding cylinder 61 drives the vertical shaft push plate 65 to push the left end of the vertical shaft 12 on the vertical shaft support surface 621 to the right end, the vertical shaft 12 respectively extrudes a front inner arc-shaped curved surface and a rear inner arc-shaped curved surface in the front and rear directions, the two vertical shaft damping strips 64 are elastically deformed by extrusion and are separated in the front and rear directions to avoid a passage for the vertical shaft 12, the vertical shaft 12 enters a clamping space of the vertical shaft damping inclined surface 642, the clamping force applied when the vertical shaft 12 is positioned at the left end of the vertical shaft damping inclined surface 642 is larger, the clamping force applied by continuous rightward translation gradually becomes smaller until becoming zero, and then the vertical shaft 12 is separated from the space between the vertical shaft damping inclined surfaces 642 and is translated to the right end of the vertical; therefore, the vertical shaft push plate 65 and the vertical shaft 12 can be ensured to be attached together, and unexpected states such as collapse flying, toppling and the like are avoided.

The directional control valve of the b-shaped part cylinder 32 is a middle pressure relief type five-port three-position electromagnetic valve, and when the b-shaped push plate 43 translates, the b-shaped part cylinder 32 is in a middle position, so that no thrust is generated on the b-shaped part 11, and the friction force on the b-shaped push plate 43 is reduced.

The vertical shaft damping strip 64 is made of a resilient material such as copper, industrial rubber or nylon.

The working process of this embodiment is as follows.

0) A plurality of B-shaped pieces 11 are placed in a cavity of the B-shaped piece storage 31, the middle pressure-relief type five-port three-position electromagnetic valve is reversed, the B-shaped piece air cylinder 32 is started, the middle pressure-relief type five-port three-position electromagnetic valve is reversed to a middle position after the plurality of B-shaped pieces 11 are compacted by equal pressure, and the B-shaped piece push block 33 only has little pressure generated by gravity on the plurality of B-shaped pieces 11 and does not have pressure generated by high-pressure air. A plurality of vertical shafts 12 are placed in the vertical shaft base 63, and the lowest vertical shaft 12 falls to the position right below the vertical shaft base 63, on the vertical shaft support surface 621 and in the vertical shaft support space 641.

1) The front cylinder 42 drives the Z-shaped push plate 43 to translate from back to front, the Z-shaped push plate 43 passes through the through hole 313 of the Z-shaped push plate to push the first Z-shaped member 11 at the lower left in the cavity of the Z-shaped member storage 31 to enter the Z-shaped member channel 21 through the Z-shaped member outlet 314, the upper horizontal part 111 of the Z-shaped member 11 passes through the upper part of the upper positioning plate 22, the vertical part 112 of the Z-shaped member 11 passes through the second part of the Z-shaped member channel 21, and the lower horizontal part 113 of the Z-shaped member 11 passes through the first part of the Z-shaped member channel 21 until the vertical shaft hole 114 of the Z-shaped member.

2) The cylindrical cylinder drives the positioning rod 536 to move downwards in a translation mode, and the lower end of the positioning rod 536 is inserted into the upper end of the vertical shaft hole 114 of the second-shaped part 11 right above the vertical shaft avoiding groove 23, so that the purpose of accurately positioning the vertical shaft hole 114 is achieved.

3) The vertical shaft feeding cylinder 61 drives the vertical shaft push plate 65 to push the left end of the vertical shaft 12 in the vertical shaft supporting space 641 to the right end from the left end of the vertical shaft supporting surface 621 on the vertical shaft supporting surface 621 to the right end under the vertical shaft library 63, the vertical shaft 12 firstly extrudes two inner circular arc-shaped curved surfaces towards the front side and the rear side, the two vertical shaft damping strips 64 are extruded to generate elastic deformation and are separated towards the front direction and the rear direction to avoid a passage for the vertical shaft 12, the vertical shaft 12 enters the clamping space of the vertical shaft damping inclined surface 642, the clamping force applied when the vertical shaft 12 is positioned at the left end of the vertical shaft damping inclined surface 642 is larger, the clamping force applied when the vertical shaft continues to translate rightwards gradually becomes smaller until the clamping force becomes zero, and then the vertical shaft is separated from the space.

4) The vertical shaft parallel air claw 74 drives the two clamping jaws 75 to relatively translate, and the two V-shaped grooves 751 clamp the lower end of the vertical shaft 12 at the right end of the vertical shaft holding surface 621.

5) The vertical shaft transfer cylinder 76 drives the combination of the vertical shaft transfer slide 71, vertical shaft transfer bracket 72, vertical shaft lift cylinder 73, vertical shaft parallel gas claw 74, clamping jaw 75 and vertical shaft 12 to translate from left to right to the vertical shaft 12 directly below the vertical shaft hole 114.

Meanwhile, the vertical shaft feeding cylinder 61 drives the vertical shaft push plate 65 to translate from the right phase to the left to return to the initial position, and the vertical shaft 12 which is arranged in the vertical shaft library 63 and is next to the upper part falls onto the vertical shaft support surface 621 and the vertical shaft supporting space 641.

6) The vertical shaft lifting cylinder 73 drives the combination of the vertical shaft parallel air claw 74, the two clamping jaws 75 and the vertical shaft 12 to move horizontally upwards, and the vertical shaft 12 is inserted into the lower end of the vertical shaft hole 114 of the second-shaped part 11 from the lower part.

7) The ring cylinder drives the half-ring pressing sleeve 535 to move downwards, and the semi-ring plane 5354 presses the upper surface of the upper horizontal part 111 of the second part 11, so that the lower surface of the upper horizontal part 111 is attached to the upward horizontal surface of the upper positioning plate 22, and the lower surface of the upper horizontal part 111 is accurately positioned.

8) The cylindrical cylinder drives the positioning rod 536 to translate upward away from the riser aperture 114, thereby providing access for the welding gun 538.

9) The welding gun cylinder 537 drives the welding gun 538 to pass through the notch 5353 on the lower side surface of the half collar and translate towards the adjacent edge of the vertical shaft hole 114 and the vertical shaft 12, the welding gun 538 spot-welds the adjacent edge of the vertical shaft hole 114 and the vertical shaft 12, and then the welding gun cylinder 537 drives the welding gun 538 to translate reversely away from the adjacent edge of the vertical shaft hole 114 and the vertical shaft 12.

10) The rotary driving electric cylinder 52 is driven by the combination of the rack 54 and the rotary gear 533 to rotate the rotary assembly 53 by 90 degrees and then stops, during which the semicircular plane 5354 is pressed against the upper surface of the upper horizontal portion 111 of the second member 11 by the driving action of the circular cylinder, and the semicircular plane 5354 and the upper surface of the upper horizontal portion 111 are in sliding friction.

11) Repeat step 9).

12) Repeating the steps 10) to 11) three times, and performing spot welding on the annular adjacent edge of the vertical shaft 12 and the vertical shaft hole 114 four times in total, wherein the second-shaped part 11 and the vertical shaft 12 are combined together to form the pressure plate assembly 1.

13) Waiting for the weld spot to cool.

14) The vertical shaft parallel pneumatic claw 74 drives the two clamping jaws 75 to translate relatively, and the two V-shaped grooves 751 are separated from left to right and are separated from the vertical shaft 12.

15) The vertical shaft lifting cylinder 73 drives the combination of the vertical shaft parallel air claw 74 and the two clamping claws 75 to translate downwards, and the two V-shaped grooves 751 are separated from the front and rear side spaces of the vertical shaft 12.

16) The vertical shaft transfer cylinder 76 drives the combination of the vertical shaft transfer slide block 71, the vertical shaft transfer bracket 72, the vertical shaft lifting cylinder 73, the vertical shaft parallel air claw 74 and the clamping jaw 75 to translate from right to left to the front and back sides of the vertical shaft 12 with two V-shaped grooves 751 at the right end of the vertical shaft supporting surface 621 to wait for the next working cycle.

17) The toroidal cylinder drives the semi-annular gland 535 to translate upward away from the upper surface of the upper horizontal section 111 of the b-shaped member 11.

18) The rear cylinder 41 drives the combination of the front cylinder 42 and the Z-shaped push plate 43 to translate from back to front, and the Z-shaped push plate 43 pushes the pressure plate assembly 1 to translate away from the channel block 2 and fall into the finished product box 10 at the front lower part.

The beneficial effects of this embodiment: the upper horizontal part 111 is compacted by mechanical force, the vertical shaft 12 is clamped, the vertical relation between the upper horizontal part and the vertical shaft is always kept, the accuracy of form and position tolerance of the finished product pressing plate assembly 1 can be ensured to the maximum extent until welding and cooling are finished, welding deformation is avoided, and the yield is improved; the automatic unloading of accomplishing, self-holding and welding reduce the amount of labour and intensity of labour, improve work efficiency.

Claims

1. An automatic accurate welding workstation of a pressing plate for a vehicle-mounted operating table comprises a vertical shaft transmission linear guide rail and a rack; the vertical shaft transmission linear guide rail is fixedly connected with the rack and arranged along the left and right horizontal directions;

it is characterized by also comprising a channel block, a second-shaped piece library component, a second-shaped piece pusher, a positioning welding component, a vertical shaft feeder and a vertical shaft conveyor;

the second-piece library component comprises a second-piece library, a second-piece cylinder and a second-piece push block; the second-type component library is fixedly connected with the rack; the left side horizontal plane is higher than the right side horizontal plane, the right end of the left side horizontal plane is connected with the upper end of the vertical plane, and the left end of the right side horizontal plane is connected with the lower end of the vertical plane; a plurality of second-shaped pieces are stacked in the second-shaped piece warehouse cavity; a Z-shaped push plate through hole is formed in the rear side of the left lower part of the cavity of the Z-shaped member warehouse, and a Z-shaped member outlet is formed in the front side of the left lower part of the cavity of the Z-shaped member warehouse; the second-shaped-piece cylinder is a cylinder with a guide rod and comprises a second-shaped-piece cylinder body and a second-shaped-piece cylinder piston rod; the second-shaped piece push block is fixedly connected with a second-shaped piece cylinder piston rod; the cylinder body of the second piece is fixedly connected with the upper right end of the second piece library; the second-shaped part push block is provided with a second-shaped part push surface, the second-shaped part push surface comprises two downward horizontal surfaces and a left vertical surface, the horizontal surface on the left side of the second-shaped part push surface is higher, the horizontal surface on the right side is lower, the right end of the horizontal surface on the left side is connected with the upper end of the vertical surface, and the left end of the horizontal surface on the right side is connected with the lower end of the vertical surface; the B-shaped piece cylinder drives the B-shaped piece pushing block to translate towards the lower left side, the B-shaped piece pushing block pushes one of the plurality of B-shaped pieces stacked on the upper right side towards the lower left side, the horizontal plane on the left side of the B-shaped piece pushing surface is attached to the upper surface of the upper horizontal part of the B-shaped piece on the upper right side, the vertical plane of the B-shaped piece pushing surface is attached to the right side surface of the vertical part of the B-shaped piece on the upper right side, and the horizontal plane on the right side of the B-shaped piece pushing surface;

the semi-ring pressing sleeve is internally provided with a through hole from top to bottom; the upper opening of the inner hole of the semi-ring pressing sleeve is a semi-ring upper annular surface which is fixedly connected with an annular surface at the lower end of the circular tube-shaped piston rod; the lower opening of the inner hole of the semi-ring pressing sleeve is a circular ring hole, then a lower side surface gap of the semi-ring pressing sleeve is arranged on the lower opening and the side wall, the lower side surface gap of the semi-ring pressing sleeve is cut off half of the lower opening of the inner hole of the semi-ring pressing sleeve, and the rest half is a semi-circular ring plane; the axis of the semicircular plane, the axis of the positioning rod and the axis of the rotating shaft are on the same straight line;

the cylindrical cylinder drives the positioning rod to move downwards in a horizontal moving mode, and the lower end of the positioning rod is inserted into the upper end of the vertical shaft hole of the lower B-shaped piece; the annular cylinder drives the semi-ring pressing sleeve to move downwards, and the plane of the semi-ring presses the upper surface of the upper horizontal part of the second-shaped part;

the vertical shaft conveying cylinder drives a vertical shaft conveying sliding block, a vertical shaft conveying support, a vertical shaft lifting cylinder, a vertical shaft parallel air claw, a clamping jaw and a vertical shaft to translate from left to right to a vertical shaft positioned right below a vertical shaft hole of the second-shaped part, the vertical shaft lifting cylinder drives a vertical shaft parallel air claw, a combination of the two clamping jaws and the vertical shaft to translate upwards, and the vertical shaft is inserted into the lower end of the vertical shaft hole of the second-shaped part from the lower part;

the rotary driving electric cylinder drives the rack to translate, the rack drives the rotary component to rotate through the rotary gear, the welding gun cylinder drives the welding gun to penetrate through a notch on the lower side surface of the semi-ring sleeve and extend into an inner hole of the semi-ring pressing sleeve, the welding gun spot-welds an adjacent edge of a vertical shaft hole and a vertical shaft of the B-shaped part, and the B-shaped part and the vertical shaft are combined into a pressing plate component;

the rear cylinder drives the combination of the front cylinder and the second-shaped push plate to translate from back to front, and the second-shaped push plate pushes the pressure plate assembly to be separated from the channel block.

2. The automatic precise welding workstation of the pressing plate for the vehicle-mounted operating table according to claim 1, wherein the vertical shaft feeder further comprises two vertical shaft damping strips, the left end of the vertical shaft material supporting bracket is further provided with two vertical damping strip mounting vertical plates, the vertical damping strip mounting vertical plates are provided with upright surfaces facing to the right, and the left ends of the two vertical shaft damping strips are respectively and fixedly connected with the two upright surfaces on the vertical damping strip mounting vertical plates; a push plate channel is arranged between the two damping strip mounting vertical plates; a narrow space in the left-right direction is formed between the two vertical shaft damping strips, wherein the front vertical shaft damping strip and the rear vertical shaft damping strip are respectively provided with an inner circular arc-shaped curved surface at the left end, the two inner circular arc-shaped curved surfaces are on the same vertical cylindrical surface with the same axial lead, and a space surrounded by the two inner circular arc-shaped curved surfaces is a vertical shaft supporting space; the right of the inner circular arc-shaped curved surface is provided with a vertical shaft damping inclined plane respectively, the left ends of the two vertical shaft damping inclined planes are small in distance size, and the right sides of the two vertical shaft damping inclined planes are large in distance size.

3. The automatic precise welding workstation of clamp plate for vehicle-mounted operating tables according to claim 1, characterized in that the directional control valve of the B-shaped piece air cylinder is a middle pressure relief type five-port three-position electromagnetic valve.

4. The automatic precise welding workstation of clamp plate for vehicle-mounted operating tables according to claim 1, 2 or 3, characterized in that the material of the vertical shaft damping strip is copper, industrial rubber or nylon.