Automatic assembly equipment for compression valves

Abstract

The present invention discloses an automatic assembly device for compression valves. It relates to the technical field of automatic assembly and riveting of valve bodies, and solves the problem of low production capacity and excessive equipment footprint caused by the multi-step back-and-forth clamping of valve discs in similar equipment on the market. The automatic assembly device for compression valves includes: line assembly, tool cleaning mechanism, lower thick valve disc feeding mechanism, lower valve disc magnetic spreading and threading mechanism, bottom valve feeding mechanism, upper valve disc magnetic spreading and threading mechanism, upper thick valve disc feeding mechanism, compensation separation and feeding mechanism, height detection mechanism, transfer and line changing mechanism, turntable mechanism, rivet feeding mechanism, rotary riveting and finished product unloading mechanism, and base. This machine is used for counting and assembling valve discs and riveting the entire valve disc structure of the automatic recovery valve assembly, reducing the entire equipment footprint and improving equipment productivity.

Description

Technical Field

[0001] The invention belongs to the field of compression valve assembly, and in particular relates to automatic assembly equipment for compression valves. Background Art

[0002] With the rapid rise and continuous development of valve body assembly, the technology level of various companies has also been continuously improved. Most of the equipment currently available on the market generally uses a clamp rotation cycle to gradually assemble the foot valve. This increases the number of steps during operation, affects the equipment's production capacity, increases the equipment's floor space, and increases the equipment cost.

[0003] The existing equipment sucks a single valve piece in a cycle and moves the valve piece by sucking it back and forth multiple times, which wastes assembly time and requires more space. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automatic assembly device for compression valves in response to the shortcomings of the background technology. The present invention can make the valve body assembly more efficient and standardized while reducing production costs.

[0005] The present invention adopts the following technical solutions to solve the above technical problems:

[0006] A compression valve automatic assembly device includes a line assembly, the line assembly is a ring-shaped production line, including a line, a propulsion mechanism for driving the line to move in a circular manner is provided at the bottom of the line; a tooling plate is provided on the line, a guide pin is provided in the middle of the tooling plate; the line assembly is provided with, in working order,

[0007] The tool cleaning mechanism includes a lifting cylinder, the lifting cylinder is connected to a tool cleaning suction head, and the tool cleaning suction head is connected to a vacuum cleaner for cleaning each tool plate;

[0008] The lower thick gasket pushing mechanism is used to move the lower thick gasket onto the guide needle;

[0009] Lower valve disc counting machine, used to transfer several lower valve discs onto the guide needle;

[0010] Valve seat loading mechanism, used to transfer the valve seat to the guide pin;

[0011] The upper valve disc counting machine has the same structure as the lower valve disc counting machine and is used to transfer several upper valve discs onto the guide needle;

[0012] The upper thick valve plate pushing mechanism has the same structure as the lower thick gasket pushing mechanism and is used to move the upper thick gasket onto the guide pin;

[0013] Compensator loading assembly, used to transfer the compensator to the guide pin;

[0014] The transfer and line changing mechanism is used to transfer the workpiece with the compensator installed to the rivet on the six-station turntable;

[0015] The turntable mechanism includes a six-station turntable, and each station is equipped with a turntable tooling;

[0016] The riveting machine is located on one side of the six-station turntable and fixes the workpiece with rivets;

[0017] Rivet loading mechanism, used to transfer rivets to the turntable tooling;

[0018] Finished product off-line mechanism, used to detect the quality of finished workpieces and separate qualified and unqualified workpieces off the line;

[0019] The height detection mechanism includes a pre-riveting height detection mechanism, a short-range height detection mechanism, a long-range height detection mechanism, and a final height detection mechanism; the height detection mechanism is used to detect whether the heights of the lower thick gasket, lower valve plate, valve seat, upper valve plate, upper thick valve plate, and compensator after installation meet the standards. If the height meets the standards, the installation is correct; if the height does not meet the standards, the installation is incorrect.

[0020] Furthermore, the lower thick gasket pushing mechanism includes a pushing cylinder, a pushing plate is horizontally connected to the pushing cylinder, a gasket hole is provided at the front end of the pushing plate and the hole diameter is not less than the outer diameter of the lower thick gasket, and when the pushing plate is pushed to the limit position, the gasket hole is located directly above the guide pin; an interlayer is provided in the middle of the pushing plate, a supporting plate is provided in the interlayer, a U-shaped portion is provided at the front end of the supporting plate at the gasket hole, the inner diameter of the U-shaped portion is smaller than the outer diameter of the lower thick gasket, and the end of the supporting plate is connected to the supporting cylinder; a discharging assembly is mounted on the pushing plate, the discharging assembly includes a material rod, a limiting block is provided at the bottom of the material rod, a circular hole for the lower thick gasket to fall is provided in the middle of the limiting block, the spacing between the bottom of the limiting block and the pushing plate is greater than the thickness of one lower thick gasket and less than the thickness of two lower thick gaskets, and both sides of the limiting block are fixed on the pushing plate;

[0021] A pressing assembly is arranged above the push plate, and the pressing assembly includes a pressing cylinder. The double shafts of the pressing cylinder are respectively connected to a pressing rod and a sleeve sleeved outside the pressing rod. The outer diameter of the pressing rod is smaller than the inner diameter of the lower thick gasket, and the outer diameter of the sleeve is larger than the inner diameter of the U-shaped part and smaller than the inner diameter of the gasket hole; the pressing rod is coaxially arranged with the guide needle.

[0022] Furthermore, the lower valve sheet counting machine includes a valve sheet magnetic separating mechanism and a valve sheet loading and transferring mechanism;

[0023] The magnetic spreading mechanism includes a magnetic spreading lifting cylinder, which is provided with a crossbeam on which a plurality of C-shaped magnetic rings are evenly distributed. The magnetic spreading mechanism also includes a horizontally arranged position switching cylinder, which is connected to a mounting seat, and on which a plurality of valve needles are evenly distributed. The valve needles correspond one to one with the magnetic rings, and each valve needle is used to place a lower valve. The position switching cylinder can drive the mounting seat to drive the valve needle to enter the magnetic ring laterally.

[0024] The valve sheet loading and transferring mechanism includes a truss, on which several vacuum pumps are evenly distributed. The bottom of the vacuum pump is connected to a suction head for adsorbing the lower valve sheet; the truss is provided with a servo motor for horizontal transfer and a lifting cylinder for vertical lifting.

[0025] Furthermore, a demagnetizing machine is provided on one side of the lower valve disc counting machine to eliminate the magnetism remaining on the workpiece due to the separation of the magnetic ring.

[0026] Furthermore, the valve seat feeding mechanism and the compensator feeding assembly have the same structure, and the compensator feeding assembly includes a string feeding mechanism and a transfer line mechanism;

[0027] The string feeding mechanism includes several material needles and a servo ejector assembly. The several material needles are connected together on a mounting plate, and the mounting plate is connected to a horizontal servo motor. The servo ejector assembly includes a C-shaped ejector plate arranged directly below the material needles, and a lifting cylinder is connected under the ejector plate. The horizontal servo motor can drive the several material needles to move horizontally above the ejector plate to switch positions, and the lifting cylinder can drive the ejector plate to lift the compensator on the material needle upward.

[0028] The transfer and loading line mechanism includes a material picking clamp connected to a clamp cylinder arranged just above the top plate, and the clamp cylinder is connected to a horizontal servo motor. A telescopic guide rod is arranged above the material picking clamp, which connects with the material needle and retracts when picking up materials.

[0029] Furthermore, the structure of the transfer and line-changing mechanism is consistent with that of the transfer and line-up mechanism, including a horizontal servo transfer assembly, a vertical servo lifting assembly and a clamping jaw assembly; the clamping jaw assembly is equipped with a centering rod that can be inserted into the center hole of the valve plate.

[0030] Furthermore, the riveting machine includes a pressing mechanism and a rotary riveting machine. During riveting, the pressing mechanism first presses the workpiece and then performs rotary riveting.

[0031] Furthermore, the rivet feeding mechanism includes a vibrating material tray, a rivet cutting mechanism and a rivet feeding transfer mechanism; the rivets are fed by the vibrating material tray, the rivet cutting mechanism is set to be compatible with the requirements of different types of rivets, and switches to the rivet feeding transfer mechanism to take the material position, and finally the rivet feeding transfer mechanism places the rivet on the turntable tooling, and the rivet height and the presence of rivets are detected at the next workstation.

[0032] Furthermore, the finished product off-line mechanism includes a first clamp, a qualified and unqualified material channel, a post-riveting height detection, a finished product duplex displacement carrier mechanism and a slide switching cylinder; the first clamp of the finished product duplex displacement carrier mechanism transfers the workpiece to the slide switching cylinder, and after switching the position, the post-riveting height detection is used to detect whether the post-riveting height is qualified and memorize it; then the second clamp of the finished product duplex displacement carrier mechanism transfers the workpiece to the qualified and unqualified material channel, and the material channel is equipped with a material dividing cylinder to judge and classify qualified and unqualified products.

[0033] Furthermore, the short-range height detection mechanism includes a support, a measuring probe and a measuring head. The measuring probe is a short-range model. The cylinder drives the measuring head to measure the height of the valve plate on the tooling plate. The short-range height detection mechanism is used before the valve seat is loaded. The positions are respectively located between the lower thick gasket pushing mechanism and the upper valve plate counting machine, and the upper valve plate counting machine and the valve seat loading mechanism. The short-range measuring mechanism adopts a relative height measurement method to determine whether the number and thickness of the valve plates have been loaded are correct.

[0034] Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects:

[0035] 1. Each special machine has a reasonable structural design, high reliability and easy maintenance;

[0036] 2. Reasonable process planning and reasonable setting of the beat of each process step can greatly improve production efficiency;

[0037] 3. The high degree of automation reduces the labor intensity of the operator, reduces labor costs and further improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0039] Figure 2 This is a schematic structural diagram of the line assembly in this embodiment;

[0040] Figure 3 Schematic diagram of the structure of the tool cleaning mechanism in this embodiment;

[0041] Figure 4 Schematic diagram of the structure of the lower thick gasket pushing mechanism in this embodiment;

[0042] Figure 5 Schematic diagram of the structure of the push plate in this embodiment;

[0043] Figure 6 Schematic diagram of the structure of the support plate in this embodiment;

[0044] Figure 7 This is a structural diagram of the lower valve piece counting machine in this embodiment;

[0045] Figure 8 Schematic diagram of the structure of the valve disc magnetic separation mechanism in this embodiment;

[0046] Figure 9 Schematic diagram of the structure of the valve seat feeding mechanism in this embodiment;

[0047] Figure 10 This is a structural diagram of the upper valve piece counting machine in this embodiment;

[0048] Figure 11 Schematic diagram of the structure of the degaussing machine in this embodiment;

[0049] Figure 12 Schematic diagram of the structure of the compensator feeding assembly in this embodiment;

[0050] Figure 13 Schematic diagram of the structure of the transfer and line changing mechanism in this embodiment;

[0051] Figure 14 Schematic diagram of the structure of the turntable mechanism in this embodiment;

[0052] Figure 15 Schematic diagram of the structure of the riveting machine in this embodiment;

[0053] Figure 16 Schematic diagram of the structure of the rivet threading mechanism in this embodiment;

[0054] Figure 17 Schematic diagram of the structure of the rivet cutting mechanism in this embodiment;

[0055] Figure 18 This is a structural diagram of the finished product off-line mechanism in this embodiment;

[0056] Figure 19 This is a schematic structural diagram of the finished product duplex displacement carrying mechanism in this embodiment;

[0057] Figure 20 Schematic diagram of the structure of the short-range height detection mechanism in this embodiment;

[0058] Figure 21 Schematic diagram of the structure of the pre-riveting height detection mechanism in this embodiment.

[0059] In the figure, 18 line body assembly; 1801 line body; 1803 propulsion mechanism; 1802 tooling plate; 1804 guide needle; 1 tooling cleaning mechanism; 101 support; 102 lifting cylinder; 103 tooling cleaning nozzle;

[0060] 2 Lower thick gasket pushing mechanism; 201 pushing cylinder; 203 pressing cylinder; 205 pushing plate; 206 gasket hole; 207 supporting plate; 2071 supporting plate cylinder; 208 material rod; 2081 limit block; 2031 pressing rod; 202 sleeve;

[0061] 4. Lower valve disc counter; 401. Valve disc magnetic separation mechanism; 402. Valve disc loading and transfer mechanism; 406. Magnetic separation lifting cylinder; 4061. Crossbeam; 4062. Magnetic ring; 403. Position switching cylinder; 4031. Mounting base; 4032. Valve disc needle; 402. Valve disc loading and transfer mechanism; 4021. Truss; 4022. Vacuum pump;

[0062] 5. Valve seat loading mechanism; 501 material string; 502 servo lifting assembly; 501 material string; 5011 mounting plate; 5012 horizontal servo motor; 502 servo lifting assembly; 501 material string; 5021 lifting plate; 5022 lifting cylinder; 501 material string; 503 transfer and loading mechanism; 5031 clamping cylinder; 5032 material retrieving clamp; 5033 horizontal servo motor; 504 vision system;

[0063] 7 upper valve slice counting machine; 701 valve slice magnetic separating mechanism; 702 valve slice loading and transferring mechanism; 8 upper thick valve slice pushing mechanism; 9 degaussing machine;

[0064] 10. Compensator loading assembly; 1001. String feeding mechanism; 1002. Transfer and loading mechanism; 1001. String feeding mechanism; 1011. Feeding needle; 1012. Mounting plate; 1013. Horizontal servo motor; 1011. Feeding needle; 1015. Top plate; 1014. Lifting cylinder; 1002. Transfer and loading mechanism; 1021. Gripping cylinder; 1022. Retrieving gripper; 1023. Horizontal servo motor; 1024. Telescopic guide rod;

[0065] 12 transfer and line changing mechanism; 1201 horizontal servo transfer assembly; 1202 vertical servo lifting assembly; 1203 clamping claw assembly;

[0066] 13 Height detection mechanism before riveting; 14 Turntable mechanism; 1401 Six-station turntable; 1402 Turntable tooling; 15 Riveting machine; 1501 Pressing mechanism; 1502 Rotary riveting machine; 1602 Height detection mechanism after riveting;

[0067] 17 rivet feeding mechanism; 1701 vibrating tray; 1711 straight vibrator; 1702 rivet cutting mechanism; 1703 rivet feeding mechanism;

[0068] 1721 slide cylinder; 1722 round cylinder; 1723 slide; 1724 rivet carrier; 16 finished product off-line mechanism; 1601 qualified and unqualified material channel; 1602 riveted height detection mechanism; 1603 finished product duplex displacement mechanism; 1606 slide switching cylinder; 1604 first clamping jaw; 1605 second clamping jaw; 1608 horizontal cylinder; 1607 thickness detection table; 1604 slide switching cylinder;

[0069] 3 short-range height detection mechanism; 301 support; 302 measuring probe; 303 measuring head; 6 long-range height detection mechanism; 11 final height detection mechanism;

[0070] 13 Pre-riveting height detection mechanism; 1301 Support; 1302 Measuring probe; 1303 Measuring head; 1304 Support mechanism. DETAILED DESCRIPTION

[0071] The technical solution of the present invention is described in further detail below:

[0072] An automatic assembly device for a compression valve, such as Figure 1 and 2 As shown, it includes a line assembly 18, which is a ring-shaped production line, including a line 1801. A propulsion mechanism 1803 for driving the line 1801 to move in a circular manner is provided at the bottom of the line 1801; a tooling plate 1802 is provided on the line 1801, and a guide pin 1804 is provided in the middle of the tooling plate 1802; the line assembly 18 is provided with the following in order of working:

[0073] like Figure 3 As shown, the tool cleaning mechanism 1 includes a support 101, a lifting cylinder 102 is installed on the support 101, and a tool cleaning suction head 103 is connected to the lifting cylinder 102. The upper end of the tool cleaning suction head 103 can be connected to a vacuum cleaner for cleaning each tool plate.

[0074] Specifically, the lifting cylinder 102 drives the tool cleaning suction head 103 to move up and down, and after approaching the tooling plate, it is cleaned with a vacuum cleaner and reset after the cleaning is completed.

[0075] like Figure 4 、 5As shown in Figures 6 and 7, the lower thick gasket pushing mechanism 2 is used to transfer the lower thick gasket to the guide needle. The lower thick gasket pushing mechanism 2 includes a pushing cylinder 201, a pushing plate 205 is horizontally connected to the pushing cylinder 201, a gasket hole 206 is provided at the front end of the pushing plate 205, and the hole diameter is not less than the outer diameter of the lower thick gasket, and when the pushing plate 205 is pushed to the limit position, the gasket hole 206 is located directly above the guide needle; an interlayer is provided in the middle of the pushing plate 205, a supporting plate 207 is provided in the interlayer, a U-shaped portion is provided at the front end of the supporting plate 207 at the gasket hole, the inner diameter of the U-shaped portion is smaller than the outer diameter of the lower thick gasket, and the end of the supporting plate 207 is connected to a supporting plate air cylinder 201. Cylinder 2071; a discharge assembly is mounted on the push plate 205, and the discharge assembly includes a material rod 208, and the material rod is facing the center of the gasket hole when the push plate is in the initial position, and a limit block 2081 is provided at the bottom of the material rod 208 (the two are separated, the bottom of the material rod is located at the center of the circular hole of the limit block and is suspended in the air), and a circular hole is provided in the middle of the limit block 2081 for the lower thick gasket to fall, and the distance between the bottom of the limit block and the push plate is greater than the thickness of one lower thick gasket and less than the thickness of two lower thick gaskets, and both sides of the limit block are fixed on the push plate 205.

[0076] A pressing assembly is provided above the push plate 205, and the pressing assembly includes a pressing cylinder 203, which connects the pressing rod and the sleeve 202 sleeved outside the pressing rod 2031. The upper end of the sleeve 202 and the pressing cylinder are connected by a spring, so that the pressing cylinder 203 can drive the pressing rod 2031 and the sleeve 202 to move downward together, and when the sleeve 202 is blocked, the spring will be compressed, the outer diameter of the pressing rod 2031 is smaller than the inner diameter of the lower thick gasket, the outer diameter of the sleeve is larger than the inner diameter of the U-shaped part, and smaller than the inner diameter of the gasket hole; the pressing rod 2031 is coaxially arranged with the guide needle.

[0077] Specifically, the material rod is a quickly disassembled part. After disassembly, it is convenient to insert the lower thick gasket. After reinstallation, the lower thick gasket slides into the round hole of the limit block along the material rod, and then falls into the gasket hole; then, the pushing cylinder pushes the pushing plate forward, and then the pressing cylinder drives the pressing rod to connect with the material needle. At the same time, the sleeve contacts the U-shaped part of the support plate and the spring is compressed. Then the support plate cylinder is pulled out of the gasket hole, and then the spring drives the sleeve to press down the lower thick gasket, so that the lower thick gasket is placed on the material needle, and then the push plate is reset to transport the next lower thick gasket.

[0078] like Figure 7 and 8 As shown, the lower valve sheet counting machine 4 is used to transfer a number of lower valve sheets onto the guide needle; the lower valve sheet counting machine 4 includes a valve sheet magnetic separating mechanism 401 and a valve sheet loading and transferring mechanism 402.

[0079] The magnetic spreading mechanism 401 includes a magnetic spreading lifting cylinder 406, which is provided with a crossbeam 4061, and a number of C-shaped magnetic rings 4062 are evenly distributed on the crossbeam 4061; the magnetic spreading mechanism 401 also includes a horizontally arranged position switching cylinder 403, the position switching cylinder 403 is connected to a mounting seat 4031, and a number of valve needles 4032 are evenly distributed on the mounting seat 4031. The valve needles 4032 correspond to the magnetic rings 4062 one by one. Each valve needle 4032 is used to place a lower valve plate, and several valve needles 4032 are used to place different lower valve plates (the same workpiece needs to be installed with multiple lower valve plates). The position switching cylinder can drive the mounting seat 4032 to drive the valve needle 4032 to enter the magnetic ring 4062 horizontally.

[0080] The valve sheet loading and transfer mechanism 402 comprises a truss 4021, with several vacuum pumps 4022 evenly distributed across it. Vacuum heads for holding the lower valve sheet are attached to the bottom of the vacuum pumps 4022. Truss 4021 is equipped with a servo motor for lateral transfer and a pneumatic cylinder for vertical lift. The number of workstations in our wafer counting machine can be increased or decreased based on actual needs to meet the demands of different workpieces.

[0081] like Figure 9 As shown, the valve seat feeding mechanism 5 includes a plurality of material strings 501 and a servo lifting assembly 502. The plurality of material strings 501 are connected to a mounting plate 5011, to which a horizontal servo motor 5012 is connected. The servo lifting assembly 502 includes a C-shaped top plate 5021 disposed directly below the material strings 501, and a lifting cylinder 5022 is connected below the top plate 5021. The horizontal servo motor 5012 can drive the plurality of material strings 501 to move horizontally above the top plate 5021 to switch positions. The lifting cylinder 5022 can drive the top plate 5021 to lift the valve seat on the material string 501 upward.

[0082] The loading and unloading mechanism 503 includes a material-removing gripper 5032, located directly above the top plate 5021, connected to a gripper cylinder 5031. The gripper cylinder is connected to a horizontal servo motor 5033. A telescopic guide rod is located above the material-removing gripper 5032, which engages the material needle and retracts during material removal. A vision system 504 detects the front and back of the valve seat to prevent misplacement.

[0083] like Figure 10 As shown, the upper valve disc counter 7 has the same structure as the lower valve disc counter and is used to transfer a plurality of upper valve discs onto the guide pins. The lower valve disc counter 7 includes a valve disc magnetic separation mechanism 701 and a valve disc loading and transfer mechanism 702. The structural principle is the same as that of the upper valve disc counter 4, and the number of stations can also be determined according to actual conditions.

[0084] The upper thick valve plate pushing mechanism 8 has the same structure as the lower thick gasket pushing mechanism and is used to move the upper thick gasket to the guide needle (the upper thick valve plate pushing mechanism 8 can be selected according to whether the workpiece needs to be installed with the upper thick valve plate pushing mechanism 8).

[0085] like Figure 11 As shown, a demagnetizer 9 is provided on one side of the lower valve disc counting machine for eliminating the magnetism remaining on the workpiece due to the separation of the magnetic ring.

[0086] like Figure 12 As shown, the compensator loading assembly 10 has the same structure as the valve seat loading mechanism 5 and is used to transfer the compensator to the guide pin; the compensator loading assembly 10 includes a string feeding mechanism 1001 and a transfer line mechanism 1002.

[0087] The string material feeding mechanism 1001 includes a plurality of material needles 1011 and a servo ejection assembly. The plurality of material needles 1011 are connected together on a mounting plate 1012. The mounting plate 1012 is connected to a horizontal servo motor 1013. The servo ejection assembly includes a C-shaped top plate 1015 arranged directly below the material needle 1011. A lifting cylinder 1014 is connected under the top plate 1015. The horizontal servo motor 1013 can drive the plurality of material needles 1011 to move horizontally above the top plate 1015 to switch positions. The lifting cylinder 1014 can drive the top plate 1015 to lift the compensator on the material needle 1011 upward.

[0088] The transfer and loading online mechanism 1002 includes a material picking clamp 1022 connected to a clamp cylinder 1021, which is arranged just above the top plate 1015. The clamp cylinder 1021 is connected to a horizontal servo motor 1023. A telescopic guide rod 1024 is provided above the material picking clamp 1022, which connects with the material needle and retracts when picking up materials.

[0089] like Figure 13 As shown, the transfer and line changing mechanism 12 is used to transfer the workpiece installed with the compensator to the rivet on the six-station turntable 1401.

[0090] The structure of the transfer and line-changing mechanism 12 is consistent with that of the transfer and line-up mechanism 1002, including a horizontal servo transfer component 1201, a vertical servo lifting component 1202 and a clamping claw component 1203; the clamping claw component 1203 is equipped with a centering rod that can be inserted into the center hole of the valve plate.

[0091] like Figure 14 As shown, the turntable mechanism 14 includes a six-station turntable 1401, and each station is provided with a turntable tool 1402;

[0092] like Figure 15As shown, the riveting machine 15 is set on one side of the six-station turntable 1401 to rivet the workpiece with rivets; the riveting machine 15 includes a clamping mechanism 1501 and a rotary riveter 1502. During riveting, the clamping mechanism 1501 first clamps the workpiece and then performs rotary riveting.

[0093] like Figure 16 and 17 As shown, the rivet feeding mechanism 17 is used to transfer rivets onto the turntable fixture 1402. The rivet feeding mechanism 17 includes a vibrating feed tray 1701, a straight vibrator 1711, a rivet cutting mechanism 1702 (for switching between different rivets), and a rivet feeding mechanism 1703. The rivets are vibrated and fed by the vibrating feed tray 1701, and are fed forward by the straight vibrator 1711. Both are mature and readily available equipment. Rivets exiting the vibrating feed tray 1701 are automatically adjusted to a vertical position and then automatically enter the rivet carrier of the rivet cutting mechanism 1702 along the feed channel.

[0094] The rivet cutting mechanism 1702 includes a slide cylinder 1721 and a circular cylinder 1722. The slide cylinder 1721 is used to move the slide 1723 (with a rivet carrier 1724) to the work station (the slide can be replaced with rivet carriers of different specifications). The circular cylinder 1722 can switch back and forth between two types of rivets (the figure shows a double-station rivet carrier). It is set to be compatible with the needs of different types of rivets and switch to the rivet online transfer mechanism 1703 to take the material position. Finally, the rivet online transfer mechanism 1703 places the rivet on the turntable tooling 1402, and then detects the rivet height and the presence of rivets at the next work station and loads the material. The rivet online transfer mechanism 1703 has horizontal and vertical cylinders, with a clamping claw at the bottom to clamp the rivet. Its structure is similar to the above structure.

[0095] like Figure 18 and 19 As shown, the finished product offline mechanism 16 is used to detect the quality of the finished workpieces and separate qualified and unqualified workpieces from the offline; the finished product offline mechanism 16 includes a qualified and unqualified material channel 1601, a post-riveting height detection mechanism 1602, a finished product duplex displacement load mechanism 1603 and a slide switching cylinder 1604.

[0096] The finished product duplex displacement loading mechanism 1603 includes a duplex displacement loading clamp, which is divided into a first clamp 1604 and a second clamp 1605. The two clamps are driven by a horizontal cylinder 1608 to move left and right, and each clamp has an independent vertical cylinder to drive up and down. The clamp is driven by the clamp cylinder to clamp and release the workpiece (the structure and principle are similar to the clamp in the aforementioned part). When in use, the first clamp 1604 in the figure transfers the workpiece on the six-station turntable 1401 to the thickness detection table 1607 on the slide switching cylinder 1606 (the left side of the first clamp in the figure is the six-station turntable 1401, and the right side of the second clamp is the qualified and unqualified material channel 1601), and then the slide switching cylinder 1606 drives the thickness detection table 1607 to switch to the bottom of the post-riveting height detection mechanism 1602 to perform a post-riveting height detection to check whether it is qualified, and memorize it. Regardless of whether it is qualified or not, it returns to the original state. position; the horizontal driving cylinder of the finished product duplex displacement carrier mechanism 1603 then drives the second clamping jaw 1605 to move left, and then clamps the workpiece and transfers the workpiece to the qualified and unqualified material channel 1601. The qualified and unqualified material channel 1601 is a double-channel structure, including a qualified material channel and an unqualified material channel, with a dividing cylinder and a dividing baffle installed in the middle. The switching between the qualified and unqualified material channels is realized by the cylinder, and the dividing cylinder is controlled according to the system memory just now to determine whether the workpiece flows into the qualified material channel or the unqualified material channel.

[0097] like Figure 20 As shown, the height detection mechanism includes a pre-riveting height detection mechanism 13 and a post-riveting height detection mechanism 1602. It also includes a short-range height detection mechanism 3, a long-range height detection mechanism 6, and a final height detection mechanism 11. Their structures are identical, differing only in their ranges. The height detection mechanism is used to detect whether the heights of the lower thick gasket, lower valve disc, valve seat, upper valve disc, upper thick valve disc, and compensator after installation meet the standards. If the heights meet the standards, the installation is correct; if the heights do not meet the standards, the installation is incorrect. The height detection mechanisms in the present invention are all purchased finished products and will not be described in detail.

[0098] Among them, the short-range height detection mechanism 3 includes a support 301, a measuring probe 302 and a measuring head 303. The measuring probe 302 uses a short-range model. The cylinder drives the measuring head 303 to measure the height of the valve plate on the tooling plate. The short-range height detection mechanism 3 is used before the valve seat is loaded. The position is located between the lower thick gasket pushing mechanism 2 and the upper valve plate counting machine 4, and the upper valve plate counting machine 4 and the valve seat loading mechanism 5. The short-range measuring mechanism 3 adopts a relative height measurement method to determine whether the number and thickness of the valve plates have been loaded are correct.

[0099] like Figure 21As shown, the structure of the height detection mechanism 13 before riveting and the height detection mechanism 1602 after riveting are consistent. The height detection mechanism 13 before riveting includes a support 1301, a measuring probe 1302, a measuring head 1303 and a support mechanism 1304; the measuring head 1303 is driven by the measuring cylinder to measure the absolute height of the workpiece. During measurement, the support mechanism 1304 is extended to ensure that the turntable tooling is located in the same plane to avoid affecting the measurement results. If the measurement is qualified, riveting will continue at the next station, otherwise, no riveting action will be performed.

[0100] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and, unless defined as such, will not be interpreted in an idealized or overly formal sense.

[0101] The above embodiments are only for illustrating the technical concept of the present invention and are not intended to limit the scope of protection of the present invention. Any changes made on the basis of the technical solution in accordance with the technical concept proposed by the present invention shall fall within the scope of protection of the present invention. The above embodiments of the present invention are described in detail, but the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. An automatic assembly device for a compression valve, characterized by: The invention comprises a line assembly (18), wherein the line assembly is a ring-shaped production line, comprising a line (1801), wherein a propulsion mechanism (1803) for driving the line (1801) to move circularly is provided at the bottom of the line (1801); a tooling plate (1802) is provided on the line (1801), wherein a guide needle is provided in the middle of the tooling plate (1802); and the line assembly (18) is provided with, in working order, A tool cleaning mechanism (1) comprises a lifting cylinder (102), the lifting cylinder (102) is connected to a tool cleaning suction head (103), and the tool cleaning suction head (103) is connected to a vacuum cleaner for cleaning each tool plate; A lower thick gasket pushing mechanism (2) is used to move the lower thick gasket onto the guide needle; The lower thick gasket pushing mechanism (2) comprises a pushing cylinder (201), a pushing plate is horizontally connected to the pushing cylinder, a gasket hole is provided at the front end of the pushing plate, and the hole diameter is not less than the outer diameter of the lower thick gasket, and when the pushing plate is pushed to the limit position, the gasket hole is located directly above the guide pin; an interlayer is provided in the middle of the pushing plate, a supporting plate is provided in the interlayer, a U-shaped portion is provided at the front end of the supporting plate at the gasket hole, the inner diameter of the U-shaped portion is smaller than the outer diameter of the lower thick gasket, and the end of the supporting plate is connected to the supporting cylinder; a discharging assembly is mounted on the pushing plate, the discharging assembly comprises a material rod, a limit block is provided at the bottom of the material rod, a circular hole for the lower thick gasket to fall is provided in the middle of the limit block, the spacing between the bottom of the limit block and the pushing plate is greater than the thickness of one lower thick gasket and less than the thickness of two lower thick gaskets, and both sides of the limit block are fixed to the pushing plate; A lower valve sheet counting machine (4) is used to transfer a plurality of lower valve sheets onto the guide needle; A valve seat loading mechanism (5) is used to transfer the valve seat onto the guide pin; An upper valve disc counting machine (7), which has the same structure as the lower valve disc counting machine, is used to transfer a plurality of upper valve discs onto the guide needle; An upper thick valve plate pushing mechanism (8), which has the same structure as the lower thick gasket pushing mechanism, is used to move the upper thick gasket onto the guide needle; A compensator loading assembly (10) is used to transfer the compensator onto the guide pin; A transfer and line-changing mechanism (12) is used to transfer a workpiece equipped with a compensator to a rivet on a six-station turntable (1401); A turntable mechanism (14) includes a six-station turntable (1401), each station being provided with a turntable tooling (1402); A riveting machine (15) is provided on one side of the six-station turntable (1401) and fixes the workpieces with rivets; A rivet threading mechanism (17) for transferring rivets onto a turntable fixture (1402); Finished product off-line mechanism (16), used to detect the quality of finished workpieces and separate qualified and unqualified workpieces off the line; The height detection mechanism comprises a pre-riveting height detection mechanism (13), a short-range height detection mechanism (3), a long-range height detection mechanism (6), and a final height detection mechanism (11); the height detection mechanism is used to detect whether the heights of the lower thick gasket, the lower valve plate, the valve seat, the upper valve plate, the upper thick valve plate, and the compensator after installation meet the standards. If the heights meet the standards, the installation is correct; if the heights do not meet the standards, the installation is incorrect.

2. The automatic assembly equipment for compression valves according to claim 1, characterized in that: A material pressing assembly is provided above the push plate, the material pressing assembly comprising a material pressing cylinder (203), the double shafts of the material pressing cylinder being respectively connected to a pressing rod and a sleeve (202) sleeved outside the pressing rod, the outer diameter of the pressing rod being smaller than the inner diameter of the lower thick gasket, the outer diameter of the sleeve being larger than the inner diameter of the U-shaped portion and smaller than the inner diameter of the gasket hole; the pressing rod and the guide needle being coaxially provided.

3. The automatic assembly equipment for compression valves according to claim 2, characterized in that: The lower valve sheet counting machine (4) comprises a valve sheet magnetic separating mechanism (401) and a valve sheet loading and transferring mechanism (402); The magnetic spreading mechanism (401) comprises a magnetic spreading lifting cylinder (406), wherein a crossbeam is provided on the magnetic spreading lifting cylinder (406), and a plurality of C-shaped magnetic rings are evenly distributed on the crossbeam; the magnetic spreading mechanism (401) further comprises a horizontally arranged position switching cylinder (403), wherein a mounting seat is connected to the position switching cylinder (403), and a plurality of valve needles are evenly distributed on the mounting seat, wherein the valve needles correspond to the magnetic rings one by one, and each valve needle is used to place a lower valve leaf, and the position switching cylinder can drive the mounting seat to drive the valve needle to enter the magnetic ring laterally; The valve sheet loading and transferring mechanism (402) comprises a truss, on which a plurality of vacuum pumps are evenly distributed, and the bottom of the vacuum pump is connected to a suction head for adsorbing the lower valve sheet; a servo motor for horizontal transfer and a lifting cylinder for vertical lifting are arranged on the truss.

4. The automatic assembly equipment for compression valves according to claim 3, characterized in that: A demagnetizing machine (9) is provided on one side of the lower valve disc counting machine for eliminating the magnetism remaining on the workpiece due to the separation of the magnetic ring.

5. The automatic assembly equipment for compression valves according to claim 1, characterized in that: The valve seat feeding mechanism (5) and the compensator feeding assembly (10) are of the same structure. The compensator feeding assembly (10) includes a string feeding mechanism (1001) and a transfer and loading mechanism (1002). The string feeding mechanism (1001) comprises a plurality of material needles and a servo ejector assembly, wherein the plurality of material needles are connected together on a mounting plate, the mounting plate is connected to a horizontal servo motor, the servo ejector assembly comprises a C-shaped ejector plate arranged directly below the material needles, and a lifting cylinder is connected below the ejector plate; the horizontal servo motor can drive the plurality of material needles to move horizontally above the ejector plate to switch positions, and the lifting cylinder can drive the ejector plate to lift the compensator on the material needle upwards; The transfer and loading line mechanism (1002) includes a material picking clamp connected to a clamp cylinder arranged just above the top plate, and the clamp cylinder is connected to a horizontal servo motor. A telescopic guide rod is arranged above the material picking clamp, which connects with the material needle and retracts when picking up materials.

6. The automatic assembly equipment for compression valves according to claim 1, characterized in that: The transfer and line-changing mechanism (12) has the same structure as the transfer and line-up mechanism (1002), and comprises a horizontal servo transfer assembly (1201), a vertical servo lifting assembly (1202), and a clamping jaw assembly (1203); the clamping jaw assembly (1203) is equipped with a centering rod capable of being inserted into the center hole of the valve plate.

7. The automatic assembly equipment for compression valves according to claim 1, characterized in that: The riveting machine (15) comprises a pressing mechanism (1501) and a rotary riveting machine (1502). During riveting, the pressing mechanism (1501) first presses the workpiece and then performs rotary riveting.

8. The automatic assembly equipment for compression valves according to claim 1, characterized in that: The rivet feeding mechanism (17) comprises a vibrating feeding tray (1701), a rivet cutting mechanism (1702) and a rivet feeding transfer mechanism (1703); the rivets are fed by the vibrating feeding tray (1701), the rivet cutting mechanism (1702) is configured to accommodate the requirements of different types of rivets, and the rivet feeding transfer mechanism (1703) is switched to take the material position, and finally the rivet feeding transfer mechanism (1703) places the rivets on the turntable tooling, and the rivet height and the presence of the rivets are detected at the next station.

9. The automatic assembly equipment for compression valves according to claim 1, characterized in that: The finished product off-line mechanism (16) comprises a first clamping jaw, a qualified and unqualified material channel (1601), a post-riveting height detection device (1602), a finished product duplex displacement loading mechanism (1603) and a slide switching cylinder (1604); the first clamping jaw of the finished product duplex displacement loading mechanism (1603) transfers the workpiece to the slide switching cylinder (1604), and after the position is switched, the post-riveting height detection device (1602) detects whether the post-riveting height is qualified and memorizes the result; the second clamping jaw of the finished product duplex displacement loading mechanism (1603) transfers the workpiece to the qualified and unqualified material channel (1601), and the material channel is equipped with a material separation cylinder to judge and classify qualified and unqualified products.

10. The automatic assembly equipment for compression valves according to claim 1, characterized in that: The short-range height detection mechanism (3) includes a support (301), a measuring probe (302) and a measuring head (303). The measuring probe (302) is a short-range model. The measuring head (303) is driven by a cylinder to measure the height of the valve plate on the tooling plate. The short-range height detection mechanism (3) is used before the valve seat is loaded. The positions are respectively located between the lower thick gasket pushing mechanism (2) and the upper valve plate counting machine (7), and the upper valve plate counting machine (7) and the valve seat loading mechanism (5). The short-range height detection mechanism (3) adopts a relative height measurement method to judge whether the number and thickness of the loaded valve plates are correct.

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