An SMT placement machine with a flip clamping mechanism

Abstract

The present invention discloses an SMT placement machine with a flipping and clamping mechanism, including a carrying frame, a flipping and rotating mechanism and a quick-change suction nozzle assembly. The flipping and rotating mechanism is arranged on the central axis column frame of the carrying frame, and cooperates with electronic components of different structural forms. It can automatically flip and rotate suction nozzles of various specifications, and realize automatic clamping and positioning after the flipping and rotating operation. The quick-change suction nozzle assembly is arranged in a circular array with the center of the flipping and rotating mechanism as the center of the circle. It is used for the rapid assembly and locking of the suction nozzle head, and it is used for the automatic unlocking and disassembly of the suction nozzle head, which assists in realizing the convenient replacement of the suction nozzle head. The SMT placement machine with a flipping and clamping mechanism realizes the automatic flipping and rotating operation of suction nozzles of various specifications, and the setting of suction nozzles of various specifications can cope with electronic components of different structural forms, thereby improving the scope of application, and also achieving the purpose of rapid assembly and locking and automatic unlocking and disassembly of the suction nozzle head.

Description

Technical Field

[0001] The present invention relates to the technical field related to SMT placement machines, and in particular to an SMT placement machine with a flip clamping mechanism. Background Art

[0002] SMT is the most popular surface mounting technology and process in the current electronic assembly industry. It is characterized by the use of electronic component surface mounting technology and reflow soldering technology. The main equipment used includes solder paste printers, chip mounters and reflow soldering machines.

[0003] As for the placement machine, it is usually configured after the dispensing machine or screen printing machine in the SMT production line. It places the surface-mounted electronic components accurately at high speed and high precision on the designed position of the printed circuit board by moving the placement head. The picking technology of the placement head usually relies on a vacuum suction nozzle, which uses a vacuum negative pressure nozzle to absorb the electronic components to be mounted.

[0004] After searching the invention patent with patent number CN108925128B, a connection device for a nozzle of a placement machine is disclosed, including a tube body, a connection rod and a nozzle body, an inner pad is fixed on the inner wall of the tube body, the connection rod passes through the movable groove, a slot is provided on the outer side of the vertical plate, and an inner magnet is installed on the inner side of the bottom of the vertical plate, a top ring is fixed on the top of the nozzle body, and the outer wall of the nozzle body and the inner wall of the tube body are interconnected, a side magnet is installed on the outer wall of the nozzle body, and a bump is provided on the top of the side magnet, and a base plate is fixed on the nozzle body, and both ends of the base plate are installed with mounting shafts, and the mounting shaft and the flap are interconnected. The connection device for the nozzle of the placement machine adopts a new structural design, so that the nozzle body can be disassembled and installed more conveniently, and at the same time ensures the stability of the installation of the nozzle body, avoiding air leakage due to loose installation of the nozzle body, and the inability to effectively absorb electronic components.

[0005] The SMT placement machines used in the above patents and prior art backgrounds still have certain shortcomings, such as:

[0006] 1. Electronic components have different specifications, sizes and structural forms according to their different uses and functions. When mounting electronic components on printed circuit boards, it is necessary to use mounting head nozzles with different structural forms according to different electronic components. Existing mounting head nozzles are usually set separately, without a variety of mounting head nozzle combination configurations, and cannot realize the automatic rotation operation of multiple mounting head nozzles, which reduces the application scope of mounting head nozzles;

[0007] 2. In the above patent, when replacing the nozzle of the placement head, the nozzle body is inserted into the tube body, and the operating ring needs to be rotated and pressed down, and the nozzle body is initially fixed by the side magnets by the cooperation between the inner magnet and the side magnets. It is also necessary to use the engagement connection between the convex structure in the flap and the card slot to complete the fixation of the nozzle body on the tube body. The operation method requires multiple steps to be performed in sequence, which cannot achieve the purpose of rapid assembly and replacement, affecting the convenience of operation;

[0008] Therefore, we propose an SMT placement machine with a flip clamping mechanism to solve the above problems. Summary of the invention

[0009] The purpose of the present invention is to provide an SMT placement machine with a flip clamping mechanism to solve the problem that the above-mentioned background technology cannot realize the automatic rotation operation of multiple placement head nozzles, which reduces the scope of application. In addition, it cannot achieve the purpose of quick assembly and replacement of the placement head nozzles, affecting the convenience of operation.

[0010] To achieve the above object, the present invention provides the following technical solution: an SMT placement machine with a flip clamping mechanism, comprising:

[0011] A carrying frame, the upper frame of which is fixedly mounted on the execution end of the conveying mechanism in the placement machine;

[0012] Also includes:

[0013] The flipping and rotating mechanism is arranged on the central axis column frame of the bearing frame, and cooperates with electronic components of different structural forms. It can automatically flip and rotate the suction nozzle heads of various specifications, and realize automatic clamping and positioning after the suction nozzle heads are flipped and rotated;

[0014] A quick-change nozzle assembly is arranged in a circular array with the center of the flip rotation mechanism as the center of the circle. It directly adopts a plug-in method for quick assembly and locking of the nozzle head, and adopts a simple rotation method for automatic unlocking and disassembly of the nozzle head, thereby assisting in realizing convenient replacement of the nozzle head.

[0015] Preferably, the flip rotation mechanism comprises a rotation seat, a limit tongue and a positioning block, the rotation seat is assisted by a bearing to form a rotating structure on the central axis column frame of the load-bearing frame, a rotation straight groove is provided on the outer wall of the left section of the rotation seat, and the rotation straight groove is arranged in a ring array with the center of the rotation seat as the center, the left section of the rotation seat is also provided with a rotation spiral groove, and the rotation spiral groove is also arranged in a ring array with the center of the rotation seat as the center, and the right port of the rotation spiral groove is connected to the right section groove path of the rotation straight groove, and the left port of the rotation spiral groove is connected to the left section groove path of the rotation straight groove;

[0016] Wherein, the connection between the left end of the rotating spiral groove and the left section of the rotating straight groove is telescopically and slidably connected with a limit tongue, and the sliding connection between the limit tongue and the rotating seat is provided with a first spring;

[0017] Among them, a positioning block for clamping and locking is provided at the rotation connection between the rotating seat and the supporting frame, and the positioning blocks are arranged in a circular array with the center of the rotating seat as the center, and a second spring is installed at the connection between the positioning block and the rotating seat.

[0018] Preferably, the side of the narrow portion of the limiting tongue facing rightward is provided with an inclined side wall, and the side of the narrow portion of the limiting tongue facing leftward is matched and flush with the groove wall of the rotating spiral groove;

[0019] Among them, the limit tongue and the positioning block are located on the same horizontal central axis, and the narrow part of the positioning block is arranged in a hemispherical structure at one end of the central axis column frame of the supporting frame, and the hemispherical end of the positioning block is connected to the hemispherical groove of the central axis column frame of the supporting frame by a snap-fitting manner.

[0020] Preferably, the lower frame body of the load-bearing frame is slidably connected with a linkage frame, and the lower end of the longitudinal frame body in the linkage frame is fixedly connected with the output end of the pneumatic telescopic rod by bolts, and the pneumatic telescopic rod is fixedly installed on the connecting plate frame in the load-bearing frame by bolts;

[0021] Wherein, a vacuum head is fixedly installed on the right end of the transverse frame body in the linkage frame by bolts.

[0022] Preferably, a driving rod is slidably connected to the upper end of the longitudinal frame body in the linkage frame, and a third spring is installed at the connection between the driving rod and the linkage frame, and the left and right sections of the driving rod respectively form a sliding structure on the left and right side frames of the bearing frame;

[0023] Wherein, the right end of the square rod body in the driving rod is fixedly connected with a pin rod member by means of bolts, and the pin rod member forms a sliding structure in the rotating straight groove.

[0024] Preferably, the quick-change nozzle assembly comprises a main pipe shell, a sub-pipe shell and an assembly pipe rack, the main pipe shell is fixedly connected to the pipe rack portion in the rotation seat by bolts, the left shell wall of the main pipe shell is provided with an air port portion connected to its air passage, and the air port portion is connected to the air extraction head by a sealed plug-in manner, the main pipe shell is slidably connected to the sub-pipe shell, and a fourth spring is installed at the connection between the main pipe shell and the sub-pipe shell, and the air passage in the main pipe shell is connected to the air passage in the sub-pipe shell through a corrugated air guide pipe;

[0025] Wherein, a locking groove is provided at the lower end of the tube cavity wall of the auxiliary tube shell, and the locking groove is arranged in a mirror image with respect to the vertical center axis of the auxiliary tube shell;

[0026] The tube cavity of the auxiliary tube shell is sealed and plugged with the circular tube part in the assembly tube rack, and a rotating tube is connected to the circular disc part of the assembly tube rack through a bearing-assisted rotation, and the suction nozzle body is threadedly and sealedly fixedly connected to the center position of the circular disc part of the assembly tube rack.

[0027] Preferably, the locking groove includes a first straight groove path, a spiral groove path, a second straight groove path and an arc-shaped groove path, the tail end of the first straight groove path is connected to the head end of the spiral groove path, and the tail end of the spiral groove path is connected to the head end of the second straight groove path, and the tail end of the second straight groove path is connected to the head end of the arc-shaped groove path.

[0028] Preferably, both sides of the tube wall of the circular tube in the assembly tube rack are provided with an integrated pin column part, and the pin column part forms a sliding structure in the locking groove, and the pin column part is connected to the arc groove by a pressing and locking manner;

[0029] Wherein, the side wall of the disc portion of the assembly tube rack facing the auxiliary tube shell is provided with an integrated plug column portion, and the groove wall of the disc portion of the assembly tube rack is provided with an integrated ratchet ring portion.

[0030] Preferably, a spring assembly is installed at the connection between the assembly tube frame and the auxiliary tube shell, and the first ring frame in the spring assembly is fixedly connected to the spring bin wall in the auxiliary tube shell by bolts, and the tail ring frame in the spring assembly is connected to the plug-in column part by plug-in engagement.

[0031] Preferably, the upper section of the rotating tube member is movably sleeved on the outside of the auxiliary tube shell, a pawl is flipped and connected to the limiting ring portion in the rotating tube member, and a torsion spring is installed at the connection between the pawl and the rotating tube member, and the pawl is connected to the ratchet ring portion in a snap-fit ​​manner.

[0032] Compared with the prior art, the invention has the following beneficial effects: the SMT placement machine with a flip clamping mechanism realizes automatic flipping and rotation operation of suction nozzles of various specifications, and can cope with electronic components of different structural forms by setting suction nozzles of various specifications, thereby improving the scope of application, and also achieving the purpose of quick assembly and locking of the suction nozzle and automatic unlocking and disassembly, thereby ensuring convenient operation;

[0033] 1. A rotating seat and a linkage frame are provided. Four quick-change nozzle assemblies are arranged in a circular array on the rotating seat. The four quick-change nozzle assemblies are arranged in a "cross" structure. The rotating spiral groove is placed between two adjacent rotating straight grooves. The four rotating straight grooves and the four rotating spiral grooves are combined to form a circular closed groove around the rotating seat. After the linkage frame drives the driving rod to slide out, the sliding cooperation between the pin rod and the rotating spiral groove is used to drive the rotating seat to rotate ninety degrees. After the linkage frame drives the driving rod to slide and retract, the sliding cooperation between the pin rod and the rotating straight groove is used to drive the pin rod to reset. The reciprocating cycle is carried out in sequence. In conjunction with electronic components of different structural forms, the four quick-change nozzle assemblies are automatically flipped and rotated. The setting of nozzle heads of various specifications can cope with electronic components of different structural forms, thereby improving the application range of the placement head in the placement machine.

[0034] Furthermore, a positioning block is provided at the rotation connection between the rotation seat and the central axis column frame of the carrying frame, and four positioning blocks are provided in a circular array with the center of the rotation seat as the center of the circle, and each positioning block is respectively provided in a one-to-one correspondence with each quick-change suction nozzle assembly. After the rotation seat is driven to rotate and rotate, the hemispherical end of the positioning block is engaged with the hemispherical groove of the central axis column frame of the carrying frame to clamp and position the rotation seat, that is, the quick-change suction nozzle assembly is automatically clamped and positioned after the flip rotation operation is realized, and the locking after the auxiliary clamping and positioning is performed in conjunction with the pressing engagement between the pin rod member and the positioning groove in the rotation straight groove, so as to ensure the stability and accuracy after the rotation, and avoid the subsequent displacement phenomenon of the quick-change suction nozzle assembly and the electronic components.

[0035] 2. A sub-tube shell and an assembly tube rack are provided. The rotating tube is held to carry out docking and insertion between the assembly tube rack and the sub-tube shell. After the round tube portion of the assembly tube rack is sealed and inserted into the tube cavity of the sub-tube shell, the pin column portion slides into the spiral groove through the first straight groove, and the sliding cooperation between the pin column portion and the spiral groove drives the assembly tube rack to rotate, so that the spring assembly is elastically deformed by force. After the rotating tube is released, the elastic deformation of the spring assembly is used to reset, so that the pin column portion slides into the arc groove along the second straight groove, and the assembly tube rack is locked through the clamping action between the arc groove and the pin column portion. Different from the complex assembly method, the direct plug-in method is adopted to achieve the purpose of rapid assembly and locking, optimize the assembly operation steps, and ensure the convenience of operation;

[0036] Furthermore, through the engagement between the pawl and the ratchet ring, the rotating pipe fitting is rotated and pushed, driving the assembled pipe rack to rotate and slide synchronously, so that the pin portion and the arc groove are disengaged from the engagement, and the pin portion slides into the spiral groove through the second straight groove, and the rotating pipe fitting is released. The elastic deformation of the spring assembly is used to reset, so that the pin portion slides out through the spiral groove and the first straight groove in turn, and a simple rotation method is adopted to achieve the purpose of automatic unlocking and disassembly, thereby assisting in the quick replacement of the nozzle head. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the front view of the three-dimensional structure of the present invention;

[0038] Figure 2 It is a schematic diagram of the front view cross-section of the three-dimensional structure of the flipping and rotating mechanism of the present invention;

[0039] Figure 3 It is a top view of the three-dimensional structure of the connection between the rotating seat and the limiting tongue of the present invention;

[0040] Figure 4 It is a schematic diagram of a front cross-sectional three-dimensional structure of the connection between the linkage frame and the load-bearing frame of the present invention;

[0041] Figure 5 It is a schematic diagram of a side cross-sectional three-dimensional structure of the connection between the linkage frame and the driving rod of the present invention;

[0042] Figure 6 It is a schematic diagram of the three-dimensional structure of the quick-change nozzle assembly of the present invention from a side view;

[0043] Figure 7 It is a schematic diagram of a front view cross-sectional three-dimensional structure of the connection between the main tube shell and the auxiliary tube shell of the present invention;

[0044] Figure 8 It is a schematic diagram of a front view cross-section of a three-dimensional structure of the connection between the auxiliary tube shell and the assembly tube rack of the present invention;

[0045] Fig. 9 It is a schematic diagram of the side cross-sectional three-dimensional structure of the connection between the auxiliary tube shell and the locking groove of the present invention;

[0046] Fig.10 It is a schematic diagram of a front view cross-section stereoscopic structure of the connection between the pipe rack and the rotating pipe fitting of the present invention;

[0047] Fig.11 This is a schematic diagram of the assembled pipe rack and spring assembly of the present invention, which is a front view stereoscopic structure;

[0048] Fig.12 It is a schematic diagram of a top-view cross-sectional three-dimensional structure of the connection between the rotating tube member and the ratchet of the present invention.

[0049] In the figure: 1, bearing frame; 2, flip rotation mechanism; 3, quick-change nozzle assembly; 4, rotation seat; 401, rotation straight groove; 402, rotation spiral groove; 5, limit tongue; 6, first spring; 7, positioning block; 8, second spring; 9, linkage frame; 10, pneumatic telescopic rod; 11, suction head; 12, driving rod; 1201, pin rod; 13, third spring; 14, main pipe shell; 1401, air port; 15 , auxiliary tube shell; 16, fourth spring; 17, corrugated air guide tube; 18, locking groove; 1801, first straight groove; 1802, spiral groove; 1803, second straight groove; 1804, arc groove; 19, assembly tube rack; 1901, pin column part; 1902, plug column part; 1903, ratchet ring part; 20, rotating tube; 21, nozzle body; 22, spring assembly; 23, pawl; 24, torsion spring. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] See also Figure 1-12 The present invention provides a technical solution: an SMT placement machine with a flip clamping mechanism, including a carrying frame 1, a flip rotation mechanism 2 and a quick-change nozzle assembly 3.

[0052] The SMT placement machine with a flip clamping mechanism specifically relates to a placement head in the placement machine, which is applied to the conveying mechanism in the existing placement machine (the above-mentioned placement machine and the conveying mechanism therein are both prior art, and are not described in detail in the drawings of the specification), the upper side frame of the supporting frame 1 is arranged in a strip-shaped structure, and the upper side frame is fixedly installed on the execution end of the conveying mechanism in the placement machine, the quick-change suction nozzle assembly 3 is arranged in a circular array with the center of the flip rotation mechanism 2 as the center of the circle, and the flip rotation mechanism 2 is arranged in a horizontal state on the central axis of the supporting frame 1 On the rack, the quick-change nozzle assembly 3 can be flipped and rotated ninety degrees at a time. In conjunction with electronic components of different structural forms, it can perform automatic flipping and rotation operations on nozzle heads of various specifications, and realize automatic clamping and positioning after the nozzle heads are flipped and rotated. After being placed, the quick-change nozzle assembly 3 is arranged in a vertical state on the flipping and rotation mechanism 2. It directly adopts a plug-in method for quick assembly and locking of the nozzle heads, and a simple rotation method for automatic unlocking and disassembly of the nozzle heads, thereby assisting in realizing convenient replacement of the nozzle heads.

[0053] When the quick-change nozzle assembly 3 is automatically flipped and rotated by the flipping and rotating mechanism 2, specifically, according to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the lower frame of the load-bearing frame 1 is arranged in a tubular structure, and the front and rear side walls of the lower frame are provided with through-going slide grooves. Since the linkage frame 9 is arranged in an "L"-shaped structure, it is divided into a transverse frame and a longitudinal frame. After installation, the lower end of the longitudinal frame is movably sleeved on the lower frame of the load-bearing frame 1. Since the front and rear bolts between the output end of the pneumatic telescopic rod 10 and the linkage frame 9 are movably inserted through the front and rear slide grooves of the lower frame of the load-bearing frame 1, the linkage frame 9 is positioned on the load-bearing frame 1 in an active state.

[0054] Since the left side frame of the load-bearing frame 1 is horizontally provided with a connecting plate frame of an integrated structure to the left, the pneumatic telescopic rod 10 is fixedly installed on the connecting plate frame in the load-bearing frame 1 by bolts after being placed, and is arranged horizontally to the right. Moreover, since the output end of the pneumatic telescopic rod 10 is movably inserted into the tube cavity of the lower frame of the load-bearing frame 1 after being placed, and the output end is fixedly connected with the lower end of the longitudinal frame in the linkage frame 9 by bolts, the pneumatic telescopic rod 10 is started to stretch and operate, so that the linkage frame 9 slides to the right on the lower frame of the load-bearing frame 1;

[0055] Since the left section of the driving rod 12 is in a round rod structure, and the right section of the driving rod 12 is in a square rod structure, after being placed, the round rod movably penetrates through the left frame of the carrying frame 1 and extends outward, and the square rod movably penetrates through the right frame of the carrying frame 1 and extends outward, so that the driving rod 12 is positioned on the carrying frame 1 in a movable state;

[0056] After the linkage frame 9 is installed, the upper end of the longitudinal frame body thereof is movably sleeved on the circular rod body of the driving rod 12, and since a third spring 13 is installed at the connection between the driving rod 12 and the linkage frame 9, the third spring 13 is movably sleeved on the circular rod body in the driving rod 12 after installation, and one end of the third spring 13 is pressed against the upper end of the longitudinal frame body in the linkage frame 9, and the other end of the third spring 13 is pressed against the right limit plate in the driving rod 12. Through the elastic support of the third spring 13, when the linkage frame 9 is driven to slide, the driving rod 12 is driven to move to the right synchronously, so that the left and right sections of the driving rod 12 slide on the left and right side frames of the supporting frame 1 respectively;

[0057] Since the left section outer wall of the rotation seat 4 is provided with a rotation straight groove 401, the left section outer wall thereof is also provided with a rotation spiral groove 402, the left port of the rotation spiral groove 402 is connected to the left section groove of the rotation straight groove 401, and the left port of the rotation spiral groove 402 is staggered with the left port of the rotation straight groove 401, so that a positioning groove is reserved at the left end of the rotation straight groove 401. In addition, since the pin rod member 1201 is inserted into the right end of the square rod body in the driving rod 12 in a vertical state after being placed, the two are fixed together by bolts, and they are movably inserted in the rotation straight groove 401, and the rotation straight groove 401 is arranged in a parallel state with the driving rod 12. After the driving rod 12 is driven to slide, the pin rod member 1201 slides to the right in the current rotation straight groove 401, even if the pin rod member 1201 is separated from the left end positioning groove of the current rotation straight groove 401, it slides to the left port of the rotation spiral groove 402;

[0058] Since a limiting tongue 5 is provided at the connection point between the left end of the rotating spiral groove 402 and the left section of the rotating straight groove 401, the limiting tongue 5 is provided in a "convex"-shaped structure, and its wide portion is movably clamped in the groove cavity of the rotating seat 4 after being installed, and its narrow portion is movably inserted into the rotating straight groove 401, and since the narrow portion of the limiting tongue 5 facing the left side is matched and flush with the groove wall of the rotating spiral groove 402, after the pin rod 1201 is driven to slide, it is limited by the limiting tongue 5 and slides along the left side wall of the limiting tongue 5 into the rotating spiral groove 402, and the pin rod 1201 slides along the rotating spiral groove 402;

[0059] Since the length of the rotating straight groove 401 is equal to the maximum sliding distance of the driving rod 12, and since the spiral angle of the rotating spiral groove 402 is 90 degrees, when the pin rod 1201 slides along the rotating spiral groove 402, the rotating seat 4 is driven to move;

[0060] Since the right side frame of the supporting frame 1 is horizontally provided with an integrated shaft column frame to the right, wherein the shaft column frame and its lower side frame are on the same horizontal central axis, and since the left port, the middle part and the right port of the seat cavity in the rotation seat 4 are fixedly connected with bearings, the bearings are movably sleeved on the shaft column frame in the supporting frame 1 after being installed, and the rotation seat 4 is driven to rotate ninety degrees on the shaft column frame in the supporting frame 1 with the assistance of the bearings, and four quick-change nozzle assemblies 3 are arranged in a circular array around the flip rotation mechanism 2, that is, four quick-change nozzle assemblies 3 are combined to form a "cross" structure, and a single rotation operation of the quick-change nozzle assembly 3 is performed;

[0061] Since the right end of the rotating spiral groove 402 is connected to the right section of the rotating straight groove 401, the right end of the rotating spiral groove 402 and the right end of the rotating straight groove 401 are staggered, so that a positioning groove is reserved at the right end of the rotating straight groove 401. When the pin rod 1201 completes sliding, the pin rod 1201 enters the positioning groove at the right end of the next rotating straight groove 401 to position the rotating seat 4;

[0062] Since the right end of the circular rod body in the driving rod 12 is sleeved and fixedly connected with the right limit plate by bolts, a third spring 13 is provided at the connection between the driving rod 12 and the linkage frame 9. After the rotation seat 4 is driven to rotate, the driving rod 12 completely slides out, wherein the right limit plate is pressed against the right side frame of the carrying frame 1 to limit the position, and the driving rod 12 stops sliding when limited, and the pneumatic telescopic rod 10 continues to stretch and operate, so that the lower end of the longitudinal frame body in the linkage frame 9 continues to slide on the lower side frame of the carrying frame 1, and the upper end of the longitudinal frame body in the linkage frame 9 slides on the circular rod body of the driving rod 12, and the third spring 13 is squeezed and elastically deformed;

[0063] Since the linkage frame 9 is arranged in parallel with the rotation seat 4, and since the vacuum head 11 is fixedly sleeved with a sealing ring, it is inserted and fixedly installed at the right end of the horizontal frame of the linkage frame 9 by bolts after being arranged, and is arranged in a horizontal state, after the rotation seat 4 completes the flipping rotation of the quick-change nozzle assembly 3, the linkage frame 9 drives the vacuum head 11 to continue to slide to the right;

[0064] Since the right section of the rotating seat 4 is vertically provided with a pipe rack portion of an integrated structure, wherein four pipe rack portions are arranged in a circular array with the center of the pipe rack portion as the center of the circle, and each pipe rack portion is respectively arranged in a one-to-one correspondence with each quick-change suction nozzle assembly 3, the main pipe shell 14 is inserted and fixedly connected to the pipe rack portion in the rotating seat 4 by bolts after being placed, and since an air passage is provided in the middle of the main pipe shell 14, and an air port portion 1401 connected to the air passage is provided on the left shell wall thereof, the air port portion 1401 is correspondingly located on the same horizontal central axis as the exhaust head 11, and after the linkage frame 9 continues to slide, the exhaust head 11 is docked with the corresponding quick-change suction nozzle assembly 3, even if the exhaust head 11 is connected to the air port portion 1401 by a sealed plug-in manner;

[0065] Since an inclined side wall is arranged on the side of the narrow portion of the limiting tongue 5 facing the right, wherein the inclined side wall is arranged facing the right section of the rotating straight groove 401, and since a first spring 6 is installed at the sliding connection between the limiting tongue 5 and the rotating seat 4, the first spring 6 is movably inserted into the groove cavity of the rotating seat 4 after being installed, and one end of the first spring 6 is clamped on the wide portion of the limiting tongue 5, and the other end is clamped on the groove cavity wall of the rotating seat 4. According to the above, after the rotating seat 4 completes the rotation, the pneumatic telescopic rod 10 is started to retract and operate, so that the linkage frame 9 slides to the left on the lower side frame of the supporting frame 1, and a left limiting disk of an integrated structure is arranged on the left end of the circular rod body in the driving rod 12. The contact and limit between the linkage frame 9 causes the linkage frame 9 to drive the driving rod 12 to move synchronously to the left, and causes the pin rod member 1201 to reset and slide along the next rotation straight groove 401. When the pin rod member 1201 contacts the limiting tongue 5, the limiting tongue 5 is pushed by the inclined side wall of the limiting tongue 5, so that it shrinks and slides on the rotation seat 4, and the first spring 6 is squeezed and elastically deformed. When the pin rod member 1201 loses contact with the limiting tongue 5, the elastic deformation of the first spring 6 is used to reset, so that the limiting tongue 5 resets and slides out on the rotation seat 4, and the pin rod member 1201 resets and slides to the left end positioning groove of the next rotation straight groove 401, completing the reset and positioning the rotation seat 4.

[0066] Since the rotating seat 4 is arranged in a cylindrical structure, four rotating straight grooves 401 are arranged in a circular array with the center of the rotating seat 4 as the center, and four rotating spiral grooves 402 are also arranged in a circular array with the center of the rotating seat 4 as the center. The rotating spiral groove 402 is staggered with the rotating straight groove 401, and is placed between two adjacent rotating straight grooves 401, that is, it is used for the connection between two adjacent rotating straight grooves 401. The four rotating straight grooves 401 and the four rotating spiral grooves 402 are combined to form an annular closed groove path around the rotating seat 4. Since there are four limiting tongues 5 arranged in a circular array around the rotating seat 4, each limiting tongue 5 is respectively arranged in a one-to-one correspondence with each rotating straight groove 401. According to the above, the driving rod 12 is driven to slide back and forth by the linkage frame 9 to perform automatic flipping and rotation operations of the four quick-change suction nozzle assemblies 3.

[0067] according to Figure 2 and Figure 3As shown, since four hemispherical grooves are arranged in a circular array with the center of the central axis column frame of the supporting frame 1 as the center of the circle, each hemispherical groove is arranged in a one-to-one correspondence with each positioning block 7, and since a positioning block 7 for clamping and locking is arranged at the rotation connection between the rotation seat 4 and the supporting frame 1, which is corresponding to the limiting tongue 5 and is on the same horizontal central axis, four positioning blocks 7 are also arranged in a circular array with the center of the rotation seat 4 as the center of the circle, and the longitudinal section of the positioning block 7 is a "convex"-shaped structure. After being installed, the width of the positioning block 7 is movably clamped in the groove cavity of the rotation seat 4, and the narrow part thereof is movably inserted into the seat cavity of the rotation seat 4, and the narrow part of the positioning block 7 is arranged in a hemispherical structure at one end of the central axis column frame of the supporting frame 1, and since a second spring 8 is installed at the connection between the positioning block 7 and the rotation seat 4, the second spring After being installed, the spring 8 is movably inserted in the groove cavity of the rotation seat 4, one end of which is clamped on the wide part of the positioning block 7, and the other end is clamped on the groove cavity wall of the rotation seat 4. When the rotation seat 4 is driven to rotate, the positioning block 7 is assisted by the hemispherical end of the positioning block 7 to shrink and slide on the rotation seat 4, and the second spring 8 is squeezed and elastically deformed, and the hemispherical end of the positioning block 7 loses the clamping connection with the current hemispherical groove of the axis column frame in the supporting frame 1. When the rotation seat 4 is driven to rotate, the elastic deformation of the second spring 8 is used to reset, so that the positioning block 7 extends and slides on the rotation seat 4, and the hemispherical end of the positioning block 7 is clamped with the next hemispherical groove of the axis column frame in the supporting frame 1. The axis column frame in the supporting frame 1 is clamped by four positioning blocks 7, which is used to lock the rotation seat 4 after it is rotated ninety degrees.

[0068] When the quick-change nozzle assembly 3 is conveniently replaced, specifically, according to Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, the nozzle body 21 is threadedly sealed and fixedly connected to the center position of the disc part in the assembly pipe rack 19. The structure of the nozzle body 21 on each quick-change nozzle assembly 3 is set differently. Since the assembly pipe rack 19 is composed of a combination of a circular tube part and a circular disc part, wherein the circular tube part is arranged vertically on the circular disc part, and the centers of the two are on the same vertical central axis, and since the ends of the circular tube part in the assembly pipe rack 19 are fixedly sleeved with sealing rings at equal intervals, the rotating pipe member 20 is held, and the assembly pipe rack 19 is docked with the auxiliary pipe shell 15, so that the circular tube part in the assembly pipe rack 19 together with the sealing ring is inserted into the tube cavity of the auxiliary pipe shell 15, and the upper section of the rotating pipe member 20 is movably sleeved on the outside of the auxiliary pipe shell 15, and the rotating pipe member 20 is held to push the assembly pipe rack 19 upward, so that the assembly pipe rack 19 slides in the tube cavity of the auxiliary pipe shell 15, and the rotating pipe member 20 slides synchronously on the auxiliary pipe shell 15;

[0069] Since the disc portion of the assembly tube frame 19 is provided with an integrated plug-in column portion 1902 toward the side wall of the auxiliary tube shell 15, the plug-in column portion 1902 is arranged at an equal angle vertically with respect to the center of the assembly tube frame 19, and since the tube cavity wall of the auxiliary tube shell 15 is provided with a spring compartment, a spring assembly 22 is installed at the connection between the assembly tube frame 19 and the auxiliary tube shell 15, and the spring assembly 22 is sequentially divided into three parts: a first ring frame, a reset spring and a tail ring frame, wherein the first ring frame and the tail ring frame are respectively fixedly connected to the two ends of the reset spring, and the spring assembly 22 is arranged to be movable after being installed. It is movably inserted in the spring bin in the auxiliary tube housing 15, and the first ring frame is clamped and fixedly connected to the spring bin wall by bolts, and the tail ring frame is movably inserted through the spring bin and extends outward. When the assembly tube rack 19 is docked with the auxiliary tube housing 15, the plug column part 1902 is connected with the tail ring frame in the spring assembly 22 by plug-in engagement. Even if the assembly tube rack 19 and the spring assembly 22 form a synchronous motion structure, after the assembly tube rack 19 is pushed to move upward, the return spring in the spring assembly 22 is squeezed and elastically deformed;

[0070] Since the locking groove 18 includes a first straight groove 1801, a spiral groove 1802, a second straight groove 1803 and an arc groove 1804, which is opened at the lower end of the tube cavity wall of the auxiliary tube shell 15, and is mirrored with respect to the vertical center axis of the auxiliary tube shell 15, both sides of the tube wall of the circular tube portion of the assembly tube rack 19 are provided with a pin column portion 1901 of an integrated structure, and the pin column portion 1901 is arranged in a vertical state after being arranged, and is connected to the locking groove 18 in a movable insertion manner, and the two pin column portions 1901 are respectively arranged corresponding to the two locking grooves 18, and the two are connected in a sliding manner, and since the head end of the first straight groove 1801 is arranged in an open state, when the assembly tube rack 19 is docked with the auxiliary tube shell 15, the pin column portion 1901 is slidably inserted into it through the opening of the first straight groove 1801;

[0071] Since the tail end of the first straight groove 1801 is connected to the head end of the spiral groove 1802, and the spiral direction of the spiral groove 1802 is set away from the first straight groove 1801, when the assembly pipe rack 19 is pushed to move upward, the pin column part 1901 slides along the first straight groove 1801 into the spiral groove 1802, and slides along the spiral groove 1802, and the sliding cooperation between the pin column part 1901 and the spiral groove 1802 drives the assembly pipe rack 19 to move;

[0072] Since the longitudinal section of the disc portion in the assembly pipe rack 19 is arranged in an "I"-shaped structure, a stop ring portion of an integrated structure is protruded from the lower end of the tube cavity wall of the rotating pipe member 20, wherein bearings are fixedly clamped on both sides of the stop ring portion. After the rotating pipe member 20 is placed, its lower end is movably sleeved on the outer side of the disc portion in the assembly pipe rack 19, and the stop ring portion is movably clamped on the disc portion in the assembly pipe rack 19 with the bearing, so that the rotating pipe member 20 is positioned on the assembly pipe rack 19 in an active state. After the assembly pipe rack 19 is driven, the disc portion rotates on the rotating pipe member 20 with the assistance of the bearing, and the reset spring in the spring assembly 22 is further stressed to undergo twisting elastic deformation through the clamping action between the plug column portion 1902 and the tail ring frame in the spring assembly 22;

[0073] Since the groove wall of the disc portion of the assembly pipe rack 19 is provided with an integrated ratchet ring portion 1903, the ring center of the ratchet ring portion 1903 coincides with the circle center of the disc portion of the assembly pipe rack 19, wherein the inclined side wall of the ratchet is oriented in the same direction as the spiral direction of the spiral groove 1802, that is, the same as the rotation direction of the assembly pipe rack 19, and since a pawl 23 is provided at the rotation connection between the assembly pipe rack 19 and the rotating pipe member 20, the pawl 23 is mirror-imaged with respect to the central axis of the rotating pipe member 20, and the end of the pawl 23 is rotatably connected with a shaft column, which is movably clamped in the groove cavity of the limiting ring portion of the rotating pipe member 20 after being installed, and wherein the two ends of the shaft column are respectively fixedly inserted into the groove cavity walls on both sides, when the assembly pipe rack 19 is driven to rotate, the pawl 23 slides along the inclined side wall of the ratchet in the ratchet ring portion 1903, so that the pawl 23 is turned over on the limiting ring portion of the rotating pipe member 20;

[0074] Since a torsion spring 24 is installed at the connection between the pawl 23 and the rotating tube 20, the torsion spring 24 is movably sleeved on the central axis of the pawl 23 after being installed, one end of which is clamped on the wall of the groove cavity in the rotating tube 20, and the other end of which is clamped on the claw body of the pawl 23. After the assembly pipe rack 19 is driven to rotate, the elastic deformation of the torsion spring 24 is used to reset the pawl 23 to reset and flip on the limiting ring part in the rotating tube 20, and the pawl 23 is connected to the ratchet ring part 1903 in a clamping manner to position the assembly pipe rack 19 after rotation;

[0075] Since the tail end of the spiral groove 1802 is connected to the head end of the second straight groove 1803, the second straight groove 1803 is arranged in parallel with the first straight groove 1801, and its length dimension is smaller than the length dimension of the spiral groove 1802. Since the tail end of the second straight groove 1803 is connected to the head end of the arc groove 1804, the arc groove 1804 is arranged vertically with the second straight groove 1803, and its arc center coincides with the center of the tube cavity of the auxiliary tube shell 15, and its angle dimension is smaller than the spiral angle dimension of the spiral groove 1802. Then, the rotating tube 20 is loosened, and the elastic deformation of the reset spring in the rotating tube 20 is used to reset, so that the pin column part 1901 slides along the second straight groove 1803 and slides into the arc groove 1804. Through the pressing and engaging connection between the pin column part 1901 and the arc groove 1804, the assembly pipe rack 19 is quickly assembled and locked.

[0076] according to Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, since an airway is provided on the upper wall of the lumen of the secondary tube shell 15, an integrated catheter portion is provided on the upper wall of the lumen of the secondary tube shell 15 toward the lumen, wherein the catheter portion is connected with its airway, and a sealing ring is fixedly sleeved at the end of the catheter portion at equal intervals. After the assembly tube rack 19 and the secondary tube shell 15 are docked and locked, the catheter portion in the secondary tube shell 15 together with the sealing ring is inserted into the lumen of the circular tube portion in the assembly tube rack 19, and the sealing insertion between the circular tube portion in the assembly tube rack 19 and the lumen in the secondary tube shell 15 is coordinated, so that the connection between the secondary tube shell 15 and the assembly tube rack 19 is double-sealed, so that the airway in the secondary tube shell 15 is connected with the lumen of the circular tube portion in the assembly tube rack 19;

[0077] After the corrugated air guide tube 17 is placed, one end of the corrugated air guide tube 17 is sealed and plugged into the airway opening of the main pipe shell 14, and they are fixed together by bolts, and the other end of the corrugated air guide tube 17 is sealed and plugged into the airway opening of the auxiliary pipe shell 15, and they are fixed together by bolts, so that the airway in the main pipe shell 14 and the airway in the auxiliary pipe shell 15 are connected through the corrugated air guide tube 17;

[0078] Since the cavity of the suction nozzle body 21 is connected with the tube cavity of the circular tube part of the assembly tube rack 19 after being placed, when the quick-change suction nozzle assembly 3 is in use, the suction head 11 is sealed and plugged together with the air port part 1401, and the suction head 11 is externally connected to the air supply device through a spring hose (the above-mentioned air supply device is a prior art and is not described in the drawings of the specification), and the suction head 11 is used to perform air extraction, so that the airway in the main shell 14, the tube cavity of the corrugated air guide tube 17, the airway in the auxiliary shell 15, the tube cavity of the circular tube part of the assembly tube rack 19 and the cavity of the suction nozzle body 21 form a negative pressure vacuum condition in turn, and the electronic components are sucked by the suction nozzle body 21 under negative pressure;

[0079] Since the main tube shell 14 is provided with positioning guide grooves on both the front and rear sides, the auxiliary tube shell 15 is vertically provided with arc guide plates of an integrated structure, wherein a through slide groove is provided in the middle of the arc guide plate, and the auxiliary tube shell 15 is located on the same vertical central axis as the main tube shell 14 after being placed, wherein the front and rear arc guide plates are respectively movably clamped in the front and rear positioning guide grooves of the main tube shell 14, and since a limited position bolt is provided at the sliding connection between the auxiliary tube shell 15 and the main tube shell 14, after the auxiliary tube shell 15 is placed, the limited position bolt movably penetrates the slide groove in the arc guide plate, and is threadedly fixed on the groove wall of the positioning guide groove, so that the auxiliary tube shell 15 is positioned on the main tube shell 14 in an active state;

[0080] Since the fourth spring 16 is installed at the connection between the main tube shell 14 and the auxiliary tube shell 15, the fourth spring 16 is movably sleeved on the outer side of the corrugated air guide tube 17 after being installed, one end of which is pressed against the shell wall of the main tube shell 14, and the other end of which is pressed against the shell wall of the auxiliary tube shell 15. When the nozzle body 21 sucks electronic components, the nozzle body 21 is docked with the electronic components, and the nozzle body 21 is driven by the docking, and the auxiliary tube shell 15 slides on the main tube shell 14. When the auxiliary tube shell 15 slides, the fourth spring 16 is squeezed and elastically deformed, providing space for the nozzle body 21 to avoid squeezing the electronic components by the nozzle body 21. The corrugated air guide tube 17 can cooperate with the sliding of the auxiliary tube shell 15 to perform telescopic movement to ensure the connection between the airway in the main tube shell 14 and the airway in the auxiliary tube shell 15.

[0081] according to Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, according to the above, through the engagement between the pawl 23 and the ratchet ring 1903, the rotating tube 20 is held and screwed, so that the rotating tube 20 rotates on the auxiliary tube shell 15, and drives the assembly tube frame 19 to rotate synchronously, so that the pin column part 1901 slides along the arc groove 1804 into the second straight groove 1803, and then the rotating tube 20 is held and pushed upward, so that the pin column part 1901 slides along the second straight groove 1803 into the spiral groove 1802, and the rotating tube 20 is released. The elastic deformation of the return spring in the spring assembly 22 is used to make the pin column part 1901 slide out along the spiral groove 1802 and the first straight groove 1801, and the assembly tube frame 19 is separated from the auxiliary tube shell 15 to form a disassembly structure;

[0082] This is the entire working process of the SMT placement machine with a flip clamping mechanism. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0083] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0084] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An SMT placement machine with a flip clamping mechanism, comprising: A carrying frame (1), wherein an upper frame body of the carrying frame (1) is fixedly mounted on an execution end of a conveying mechanism in a placement machine; It is characterized by further comprising: A flipping and rotating mechanism (2), wherein the flipping and rotating mechanism (2) is arranged on the central axis column frame of the supporting frame (1), and cooperates with electronic components of different structural forms, so that it can automatically flip and rotate suction nozzles of various specifications, and realize automatic clamping and positioning after the suction nozzles are flipped and rotated; The flip rotation mechanism (2) comprises a rotation seat (4), a limiting tongue (5) and a positioning block (7); the rotation seat (4) is assisted by a bearing to form a rotating structure on the central axis column frame of the bearing frame (1); a rotation straight groove (401) is provided on the left section outer wall of the rotation seat (4); the rotation straight groove (401) is arranged in a circular array with the center of the rotation seat (4) as the center of the circle; a rotation spiral groove (402) is also provided on the left section outer wall of the rotation seat (4); the rotation spiral groove (402) is also arranged in a circular array with the center of the rotation seat (4) as the center of the circle; the right end of the rotation spiral groove (402) is connected to the right section groove path of the rotation straight groove (401); and the left end of the rotation spiral groove (402) is connected to the left section groove path of the rotation straight groove (401); The connection between the left end of the rotating spiral groove (402) and the left section of the rotating straight groove (401) is telescopically and slidably connected with a limit tongue (5), and the sliding connection between the limit tongue (5) and the rotating seat (4) is provided with a first spring (6); Wherein, a positioning block (7) for clamping and locking is arranged at the rotation connection between the rotating seat (4) and the supporting frame (1), and the positioning blocks (7) are arranged in a circular array with the center of the rotating seat (4) as the center of the circle, and a second spring (8) is installed at the connection between the positioning block (7) and the rotating seat (4); A quick-change suction nozzle assembly (3), wherein the quick-change suction nozzle assembly (3) is arranged in a circular array with the center of the flip rotation mechanism (2) as the center of the circle, and directly adopts a plug-in method for fast assembly and locking of the suction nozzle head, and adopts a simple rotation method for automatic unlocking and disassembly of the suction nozzle head, thereby assisting in realizing convenient replacement of the suction nozzle head; The quick-change nozzle assembly (3) comprises a main pipe shell (14), a sub-pipe shell (15) and an assembly pipe rack (19); the main pipe shell (14) is fixedly connected to the pipe rack portion in the rotation seat (4) by bolts; a gas port portion (1401) connected to its air passage is provided on the left shell wall of the main pipe shell (14); the gas port portion (1401) is connected to the air extraction head (11) by a sealed plug-in manner; the sub-pipe shell (15) is slidably connected to the main pipe shell (14); a fourth spring (16) is installed at the connection between the main pipe shell (14) and the sub-pipe shell (15); and the air passage in the main pipe shell (14) and the air passage in the sub-pipe shell (15) are connected by a corrugated air guide pipe (17); A locking groove (18) is provided at the lower end of the tube cavity wall of the auxiliary tube shell (15), and the locking groove (18) is arranged in a mirror image with respect to the vertical center axis of the auxiliary tube shell (15); The tube cavity of the auxiliary tube shell (15) is sealed and plugged with the circular tube portion of the assembly tube rack (19), and a rotating tube member (20) is connected to the circular disc portion of the assembly tube rack (19) through a bearing-assisted rotation, and a suction nozzle body (21) is threadedly and sealedly fixedly connected to the center position of the circular disc portion of the assembly tube rack (19); The locking groove (18) comprises a first straight groove path (1801), a spiral groove path (1802), a second straight groove path (1803) and an arcuate groove path (1804); the tail end of the first straight groove path (1801) is connected to the head end of the spiral groove path (1802); the tail end of the spiral groove path (1802) is connected to the head end of the second straight groove path (1803); and the tail end of the second straight groove path (1803) is connected to the head end of the arcuate groove path (1804).

2. The SMT placement machine with a flip clamping mechanism according to claim 1, characterized in that: The side of the narrow portion of the limiting tongue (5) facing rightward is provided with an inclined side wall, and the side of the narrow portion of the limiting tongue (5) facing leftward is matched and flush with the groove wall of the rotating spiral groove (402); The limiting tongue (5) and the positioning block (7) are located on the same horizontal central axis, and the narrow portion of the positioning block (7) is arranged in a hemispherical structure at one end facing the central axis column frame of the supporting frame (1), and the hemispherical end of the positioning block (7) is connected to the hemispherical groove of the central axis column frame of the supporting frame (1) by means of a snap fit.

3. The SMT placement machine with a flip clamping mechanism according to claim 1, characterized in that: The lower frame body of the load-bearing frame (1) is slidably connected to a linkage frame (9), and the lower end of the longitudinal frame body in the linkage frame (9) is fixedly connected to the output end of the pneumatic telescopic rod (10) by bolts, and the pneumatic telescopic rod (10) is fixedly mounted on the connecting plate frame in the load-bearing frame (1) by bolts; Wherein, a vacuum head (11) is fixedly mounted on the right end of the transverse frame body in the linkage frame (9) by means of bolts.

4. The SMT placement machine with a flip clamping mechanism according to claim 3, characterized in that: The upper end of the longitudinal frame body in the linkage frame (9) is slidably connected to a driving rod (12), and a third spring (13) is installed at the connection between the driving rod (12) and the linkage frame (9), and the left and right sections of the driving rod (12) respectively form a sliding structure on the left and right side frames of the supporting frame (1); The right end of the square rod body in the driving rod (12) is fixedly connected to a pin rod member (1201) via a bolt, and the pin rod member (1201) forms a sliding structure in the rotating straight groove (401).

5. The SMT placement machine with a flip clamping mechanism according to claim 1, characterized in that: The tube walls on both sides of the circular tube portion in the assembly tube rack (19) are both provided with pin columns (1901) of an integrated structure, and the pin columns (1901) form a sliding structure in the locking groove (18), and the pin columns (1901) are connected to the arc-shaped groove (1804) by a pressing and locking manner; The side wall of the disc portion of the assembly tube rack (19) facing the auxiliary tube shell (15) is provided with an integrated plug column portion (1902), and the groove wall of the disc portion of the assembly tube rack (19) is provided with an integrated ratchet ring portion (1903).

6. The SMT placement machine with a flip clamping mechanism according to claim 5, characterized in that: A spring assembly (22) is installed at the connection between the assembly tube frame (19) and the auxiliary tube shell (15), and the first ring frame in the spring assembly (22) is fixedly connected to the wall of the spring bin in the auxiliary tube shell (15) by bolts, and the tail ring frame in the spring assembly (22) is connected to the plug-in column part (1902) by plug-in engagement.

7. The SMT placement machine with a flip clamping mechanism according to claim 1, characterized in that: The upper section of the rotating tube member (20) is movably sleeved on the outer side of the auxiliary tube shell (15), a pawl (23) is flipped and connected to the limiting ring portion in the rotating tube member (20), a torsion spring (24) is installed at the connection between the pawl (23) and the rotating tube member (20), and the pawl (23) and the ratchet ring portion (1903) are connected in a snap-fit ​​manner.

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