Guide pipe seat ring press-fitting machine

Abstract

The invention relates to the technical field of engine cylinder cover machining, and provides a guide pipe seat ring pressing machine which comprises a base and a supporting table suspended above the base, a first pressing cylinder capable of driving the supporting table to do lifting motion is fixed to the base, and a fixing device used for fixing an engine cylinder cover is arranged below the supporting table. A seat plate and a moving trolley for driving the seat plate to horizontally move in the length direction of the supporting table are arranged at the bottom of the supporting table; the inner pad is in clearance fit with the guide pipe or the seat ring, the guide pipe or the seat ring can be sleeved outside the inner pad, the outer diameter of the bottom lining is between the outer diameter and the inner diameter of the guide pipe or between the outer diameter and the inner diameter of the seat ring, and the seat sleeve can drive the guide pipe or the seat ring to extend into the mounting hole under the driving of the second pressure cylinder. The assembling mode is combined with a sealant smearing mode, and the problems that in the prior art, the requirement for the quality of materials is high in an interference fit press-fitting mode, and mechanical locking needs to remachine the cylinder cover are solved.

Description

Technical Field

[0001] The invention relates to the technical field of engine cylinder head processing, and in particular to a guide tube seat ring press-fitting machine. Background Art

[0002] During the processing of engine cylinder heads, the press-fitting of duct seats is a key auxiliary process in the production line. The quality of press-fitting has a direct impact on the subsequent finishing of ducts and seat rings. According to the press-fitting process, there are high requirements for the press-fitting depth of ducts and the press-fitting consistency of intake and exhaust ducts and seat rings. Due to the high press-fitting accuracy of ducts and seat rings, if the locating pin is subjected to force, the cover pin hole will be damaged, affecting subsequent use.

[0003] After searching, the patent technology with announcement number CN107457560B discloses a catheter seat ring press machine, including a base, a supporting foot, a first hydraulic mechanism, a supporting platform, a mobile trolley, a first fixed block, a second hydraulic mechanism, a catheter limit box, a first electromagnet, a first slide, a connecting plate, a second fixed block, a third hydraulic mechanism, a seat ring limit box, a second electromagnet, a second slide, a pillar, a rotating motor, a chuck, a cylinder head, a control host, a first spring, a catheter limit ring, a second spring, a pressure plate and a seat ring limit ring. The beneficial effects of the present invention are: the press machine only needs to put the catheter and the seat ring into the corresponding limit rings respectively, and the electromagnet can adsorb the catheter and the seat ring, which is easy to operate and effectively improves the feeding speed and accuracy; the position of the catheter and the seat ring installation mechanism can be synchronously adjusted according to the hole position of the cylinder head, so that the press machine meets the installation requirements of cylinder heads with different hole positions, and can also realize multi-faceted press installation by rotating the cylinder head by a motor.

[0004] However, the above-mentioned catheter seat ring press-fitting machine still has the following problems: the above-mentioned catheter seat ring and the cylinder head mounting hole adopt an interference fit, and the catheter seat ring is tightly fixed on the cylinder head by utilizing the elastic deformation of the catheter seat ring material during the press-fitting process. During the press-fitting process, this press-fitting method presses the seat ring into the cylinder head hole by applying a certain pressure, but the size of the interference will affect the firmness of the fixation, and the quality requirements of the material are relatively high;

[0005] Some engine cylinder heads are designed with specific mechanical locking structures, such as bosses and slots around the cylinder head holes. After the seat ring is pressed into place, these structures can prevent the seat ring from shifting during use. However, these structures require the cylinder head to be reprocessed, which increases the time consumption of the process and also has a certain impact on the quality of the cylinder head.

[0006] In some cases, special glue or sealant is applied to the joint between the seat ring and the cylinder head. This can not only help fix the seat ring to a certain extent, but also play a sealing role to prevent gas or liquid leakage. However, in the existing technology, this needs to be done after press-fitting, which has low work efficiency and it is difficult to ensure uniformity of application.

[0007] In addition, when the catheter seat ring is placed into the corresponding limit ring, the catheter seat ring needs to be supported by hand and then clamped and fixed by mechanical drive. This process has high requirements on operation and there is a safety risk of pinching. Summary of the invention

[0008] The present invention proposes a catheter seat ring press, which solves the problems in the prior art that the interference fit press method has high requirements on material quality, mechanical locking requires reprocessing of the cylinder head, and the sealant application efficiency is low and uneven, and there is a safety risk of pinching.

[0009] The technical solution of the present invention is as follows: a catheter seat ring press machine, comprising a base and a support platform suspended above the base, a first press cylinder capable of driving the support platform to do lifting movement is fixed on the base, a fixing device for fixing an engine cylinder head is arranged below the support platform, a seat plate and a moving trolley for driving the seat plate to move horizontally along the length direction of the support platform are arranged at the bottom of the support platform, a second press cylinder located above and below the engine cylinder head is fixed on the seat plate, and a press mechanism for assembling a catheter or a seat ring on the engine cylinder head is arranged on the two second press cylinders, and the press mechanism includes a driving rod that moves vertically under the drive of the second press cylinder;

[0010] A seat sleeve supporting the guide tube or the seat ring is fixed to the end of the driving rod away from the second pressure cylinder;

[0011] The outer side of the driving rod is provided with a clamping assembly for clamping the conduit or the seat ring to the seat sleeve;

[0012] The clamping assembly is elastically connected to the driving rod via a first spring;

[0013] The seat cover is provided with a support pad assembly for supporting the conduit or the seat ring and capable of expansion and contraction;

[0014] The seat cover is provided with a glue coating component outside for coating glue on the pores of the conduit or the seat ring after installation;

[0015] The glue coating assembly is elastically connected to the driving rod through a torsion spring.

[0016] Preferably, the driving rod includes a flower rod segment, one end of the flower rod segment is fixed to the output end of the second pressure cylinder, the other end of the flower rod segment is fixed with a round rod segment, a first stop ring is fixed to the outer side of the bottom of the flower rod segment, a second stop ring is fixed to the outer side of the top of the flower rod segment, and a lower pressure ring is fixed to the outer side of the round rod segment.

[0017] Preferably, the clamping assembly includes an outer sleeve and an inner sleeve, the outer sleeve is slidably mounted outside the inner sleeve, and the inner sleeve is slidably mounted outside the flower stem segment, first electromagnets are fixed to opposite sides of the outer sleeve and the inner sleeve, and the two first electromagnets are elastically connected via a second spring, a plurality of annularly distributed ear plates are fixed to the outside of the outer sleeve, a hinge seat corresponding to the ear plate is fixed to the top of the inner sleeve, a clamping claw is hinged on the ear plate via two first connecting rods, the hinge seat is hinged to an inner first connecting rod via a second connecting rod, and a clamping portion is provided at the end of the clamping claw.

[0018] Preferably, one end of the first spring abuts against the outer sliding sleeve, and the other end of the first spring abuts against the first stop ring.

[0019] Preferably, the seat cover comprises an inner pad, the inner pad is fixed to the top of the round rod segment, a base lining is fixed to the bottom of the inner pad, and a spring groove is provided inside the inner pad.

[0020] Preferably, the support pad assembly includes two symmetrically distributed pads, and a second electromagnet with a sliding limit located in a spring groove is fixed to the adjacent end of the two pads. The two second electromagnets are elastically connected by a third spring. The two pads extend outward from the spring groove to the outside of the inner pad, and a clamping block is fixed on the top of the two pads.

[0021] Preferably, the glue coating assembly includes a pressure plate, which is in the shape of a cover, and a sleeve sleeved outside the round rod segment is fixed to the bottom of the pressure plate, an upper pressure ring is fixed to the bottom of the sleeve, both ends of the torsion spring are respectively clamped on the upper pressure ring and the lower pressure ring, and two rotating shafts are symmetrically fixed to the inner side of the bottom of the sleeve, and guide wheels are rotatably connected to the two rotating shafts, and a spiral ear piece that contacts the two guide wheels is fixed to the outer side of the round rod segment, and a pressure plug that fits in the clamping cavity of the sleeve is fixed to the outer side of the round rod segment, a plurality of guide holes are opened on the pressure plug, and a first one-way valve is arranged in the guide hole, and a cavity communicating with the clamping cavity above the pressure plug is opened in the pressure plate, and a second one-way valve is arranged in the cavity.

[0022] Preferably, a first sealing ring and a second sealing ring are fixedly embedded on the surface of the pressure plate, the first sealing ring is located outside the cavity port, and the second sealing ring is located inside the cavity port.

[0023] Preferably, a plurality of scrapers distributed in an annular manner are fixed to the surface of the pressure plate, and the scrapers are located between the first sealing ring and the second sealing ring, and the scrapers are arranged alternately with the outer port of the cavity.

[0024] Preferably, a wedge-shaped pressure head is provided on the top of the clamping block, and a clamping socket matched with the wedge-shaped pressure head is provided on the inner side of the bottom opening of the conduit or the seat ring.

[0025] The beneficial effects of the present invention are:

[0026] 1. The inner gasket and the conduit or the seat ring in the present invention are clearance-matched. The conduit or the seat ring can be sleeved outside the inner gasket. The outer diameter of the bottom liner is between the outer diameter and the inner diameter of the conduit or between the outer diameter and the inner diameter of the seat ring. The second pressure cylinder drives the lower seat sleeve to drive the conduit or the seat ring to extend into the mounting hole. This assembly form combined with the method of applying sealant solves the problem that the interference fit press-fit method in the prior art has high requirements on material quality and mechanical locking requires reprocessing of the cylinder head;

[0027] 2. When the pressure plug compresses the sealant in the cavity between the sleeve and the round rod segment in the present invention, the sealant can pass through the cavity and be extruded from the outer port of the cavity. Since the guide wheel on the rotating shaft rolls on the spiral ear piece on the outer side of the round rod segment, the glue coating assembly can rotate slowly relative to the driving rod, and then the sealant extruded from the outer port of each cavity can be evenly spread in the pores between the seat ring and the mounting hole at the bottom of the engine cylinder head through the scraper between the first sealing ring and the second sealing ring, so as to fix the seat ring and seal the pores, thereby solving the problem of low efficiency and unevenness of sealant coating in the prior art;

[0028] 3. During the process of installing the seat ring, the present invention can compress the third spring and shrink it into the spring groove by squeezing the wedge-shaped pressure head of the clamping block until the seat ring is sleeved outside the inner pad. The clamping block is automatically clamped in the bayonet of the seat ring by the elastic force of the third spring and supported by the two pads at the bottom. The seat ring can be initially fixed by the automatic engagement of the wedge-shaped pressure head of the clamping block and the bayonet, so as to facilitate subsequent clamping and pressing, thereby solving the problem of safety risk of pinching when installing the catheter seat ring in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Figure 1 This is a schematic structural diagram of a catheter seat ring press-fitting machine proposed by the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of the press-fitting mechanism proposed by the present invention;

[0032] Figure 3 A schematic diagram of the partial structure of the clamping assembly proposed by the present invention;

[0033] Figure 4 This is a schematic diagram of the drive rod, the glue coating assembly and the seat cover structure proposed by the present invention;

[0034] Figure 5 This is a schematic diagram of the cross-sectional structure of the driving rod, the glue coating assembly and the seat cover proposed in the present invention;

[0035] Figure 6 A schematic diagram of a partial structure of a driving rod and a seat cover proposed by the present invention;

[0036] Figure 7 It is a schematic diagram of a partial cross-section of the driving rod and the seat cover proposed by the present invention;

[0037] Figure 8 This is a schematic diagram of the structure of the support pad assembly proposed by the present invention;

[0038] Fig. 9 This is a schematic diagram of a half-section structure of the glue coating component proposed by the present invention;

[0039] Fig.10 for Fig. 9 The enlarged structural diagram at A in the middle;

[0040] Fig.11 for Figure 5 The enlarged structural diagram at B in the middle;

[0041] In the figure: 1, base; 2, first pressure cylinder; 3, support platform; 4, seat plate; 5, mobile trolley; 6, fixing device; 7, second pressure cylinder; 8, pressing mechanism; 81, driving rod; 811, flower rod section; 812, round rod section; 813, first stop ring; 814, lower pressure ring; 815, second stop ring; 816, press plug; 817, spiral ear piece; 818, guide hole; 819, first one-way valve; 82, clamping assembly; 821, outer sliding sleeve; 822, inner sliding sleeve; 823, ear plate; 824, hinge seat; 825, first connecting rod; 826, clamping claw; 827, second connecting rod; 828, clamping part; 829, first electromagnet; 8210, second spring; 83, first spring; 84, glue coating assembly; 841, pressure plate; 842, sleeve; 843, upper pressure ring; 844, rotating shaft; 845, guide wheel; 846, cavity; 847, second one-way valve; 848, first sealing ring; 849, second sealing ring; 8410, scraper; 85, torsion spring; 86, seat cover; 861, inner pad; 862, bottom lining; 863, spring groove; 87, support pad assembly; 871, pad; 872, second electromagnet; 873, third spring; 874, clamping block. DETAILED DESCRIPTION

[0042] The following will be combined with 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.

[0043] See also Figure 1 and Figure 2 The present invention provides a technical solution: a catheter seat ring press machine, comprising a base 1 and a support platform 3 suspended above the base 1, a first press cylinder 2 that can drive the support platform 3 to do lifting movement is fixed on the base 1, a fixing device 6 for fixing the engine cylinder head is arranged below the support platform 3, a seat plate 4 and a moving trolley 5 that drives the seat plate 4 to move horizontally along the length direction of the support platform 3 are arranged at the bottom of the support platform 3, a second press cylinder 7 located above and below the engine cylinder head is fixed on the seat plate 4, and two second press cylinders 7 are provided with a fixing device 6 for fixing the engine cylinder head. The seat ring is assembled on the press-fitting mechanism 8 of the engine cylinder head. The present invention adopts the technical means of the existing patent. After the engine cylinder head is fixed by the fixing device 6, the support platform 3 can be driven down by the first press cylinder 2, and the press-fitting mechanism 8 with the catheter clamped can be driven downward by the second press cylinder 7 above, and the catheter is loaded into the mounting hole at the top of the engine cylinder head. Then, the support platform 3 is driven up by the first press cylinder 2, and the press-fitting mechanism 8 with the seat ring clamped can be driven upward by the second press cylinder 7 below, and the seat ring is loaded into the mounting hole at the bottom of the engine cylinder head.

[0044] See also Figure 2 , Figure 3 and Figure 4 The difference between the present invention and the existing patent technology lies in the pressing mechanism 8, and the pressing mechanism 8 in the present invention includes a driving rod 81 driven by the second pressing cylinder 7 to move vertically, and the driving rod 81 includes a flower rod segment 811, one end of the flower rod segment 811 is fixed to the output end of the second pressing cylinder 7, and the other end of the flower rod segment 811 is fixed with a round rod segment 812, a first stop ring 813 is fixed to the outer side of the bottom of the flower rod segment 811, a second stop ring 815 is fixed to the outer side of the top of the flower rod segment 811, and a lower pressing ring 814 is fixed to the outer side of the round rod segment 812.

[0045] See also Figure 2 , Figure 6 and Figure 7A seat sleeve 86 supporting the catheter or the seat ring is fixed at one end of the driving rod 81 away from the second pressure cylinder 7. The seat sleeve 86 includes an inner pad 861. The inner pad 861 is fixed to the top of the round rod segment 812. A bottom liner 862 is fixed to the bottom of the inner pad 861. A spring groove 863 is provided inside the inner pad 861. It should be noted that the inner pad 861 is clearance-matched with the catheter or the seat ring. The catheter or the seat ring can be sleeved on the outside of the inner pad 861. The outer diameter of the bottom liner 862 is between the outer diameter and the inner diameter of the catheter or between the outer diameter and the inner diameter of the seat ring. When the second pressure cylinder 7 drives the lower seat sleeve 86, it can drive the catheter or the seat ring to extend into the mounting hole.

[0046] See also Figure 2 , Figure 3 A clamping assembly 82 for clamping the catheter or the seat ring on the seat sleeve 86 is arranged on the outer side of the driving rod 81, and the clamping assembly 82 includes an outer sleeve 821 and an inner sleeve 822. The outer sleeve 821 is slidably sleeved outside the inner sleeve 822, and the inner sleeve 822 is slidably sleeved outside the flower rod section 811. The first electromagnet 829 is fixed on the opposite side of the outer sleeve 821 and the inner sleeve 822. The two first electromagnets 829 are elastically connected by a second spring 8210. A plurality of annularly distributed ear plates 823 are fixed on the outer side of the outer sleeve 821, and a corresponding arrangement of the ear plates 823 is fixed on the top of the inner sleeve 822. The hinge seat 824 has a clamping claw 826 hinged on the ear plate 823 through two first connecting rods 825. The hinge seat 824 is hinged to the inner first connecting rod 825 through the second connecting rod 827. The end of the clamping claw 826 is provided with a clamping portion 828. The two first electromagnets 829 on the inner sleeve 822 and the outer sleeve 821 are energized to compress the second spring 8210, and the first connecting rod 825 is pulled through the second connecting rod 827 on the hinge seat 824. Each clamping claw 826 rotates inward on the ear plate 823, and then the clamping portion 828 of the clamping claw 826 clamps the conduit or the seat ring on the seat sleeve 86.

[0047] Furthermore, the clamping assembly 82 is elastically connected to the driving rod 81 through the first spring 83, one end of the first spring 83 abuts against the outer sleeve 821, and the other end of the first spring 83 abuts against the first stop ring 813. In the process of the second pressure cylinder 7 driving the guide tube or the seat ring to move toward the mounting hole of the engine cylinder head so that the seat ring gradually extends into the mounting hole, the clamping jaw 826 begins to push the outer sleeve 821 to compress the first spring 83 under the resistance of the outer wall of the engine cylinder head, and the seat ring can gradually slide away from the clamping jaw 826 and be inserted into the mounting hole.

[0048] See also Figure 7 and Figure 8The seat sleeve 86 is provided with a support pad assembly 87 for resisting the catheter or the seat ring and being able to extend and retract. The support pad assembly 87 includes two symmetrically distributed pads 871. The adjacent ends of the two pads 871 are fixed with second electromagnets 872 that are limited in sliding in the spring groove 863. The two second electromagnets 872 are elastically connected by a third spring 873. The two pads 871 extend outward from the spring groove 863 to the outside of the inner pad 861. The tops of the two pads 871 are fixed with a clamping block 874. The top of the clamping block 874 is provided with a wedge-shaped pressure head, and the inner side of the bottom opening of the catheter or the seat ring is provided with a wedge-shaped pressure head. The matching bayonet, in the initial state, the two second electromagnets 872 in the spring groove 863 are in the power-off state, and the two pads 871 are extended by the elastic force of the third spring 873 to support the conduit or the seat ring. When the conduit or the seat ring is about to be inserted into the mounting hole and the pressure plate 841 is about to contact the bottom wall around the engine cylinder head hole, the two second electromagnets 872 are energized to make the two pads 871 compress the third spring 873 and shrink into the spring groove 863. The pressure plate 841 is bounced up by the elastic force of the torsion spring 85 until it conflicts with the bottom wall around the engine cylinder head hole.

[0049] See also Fig. 9 , Fig.10 and Fig.11 , a glue coating component 84 for coating glue on the pores after the catheter or the seat ring is installed is arranged outside the seat sleeve 86, and the glue coating component 84 includes a pressure plate 841, and the pressure plate 841 is in the shape of a cover, and a sleeve 842 sleeved outside the round rod segment 812 is fixed at the bottom of the pressure plate 841, and an upper pressure ring 843 is fixed at the bottom of the sleeve 842. The glue coating component 84 is elastically connected to the driving rod 81 through a torsion spring 85, and specifically, the two ends of the torsion spring 85 are respectively clamped on the upper pressure ring 843 and the lower pressure ring 814, and two rotating shafts 844 are symmetrically fixed on the inner side of the bottom of the sleeve 842, and the two rotating shafts 844 are rotatably connected with guide wheels 845, and the round rod A spiral ear piece 817 that contacts the two guide wheels 845 is fixed to the outside of the segment 812, and a pressure plug 816 that fits in the clamping cavity of the sleeve 842 is fixed to the outside of the round rod segment 812. A plurality of guide holes 818 are provided on the pressure plug 816, and a first one-way valve 819 is provided in the guide hole 818. A cavity 846 that communicates with the clamping cavity above the pressure plug 816 is provided in the pressure plate 841, and a second one-way valve 847 is provided in the cavity 846. It should be noted that the first one-way valve 819 can only allow external air to enter the clamping cavity storing sealant, and the second one-way valve 847 can only extrude the sealant in the cavity 846 to the external port.

[0050] Furthermore, a first sealing ring 848 and a second sealing ring 849 are fixedly embedded on the surface of the pressure plate 841. The first sealing ring 848 is located outside the outer port of the cavity 846, and the second sealing ring 849 is located inside the outer port of the cavity 846. The outer diameter of the pressure plate 841 is larger than the diameter of the mounting hole, and the opening of the cavity 846 between the first sealing ring 848 and the second sealing ring 849 is just at the gap of the mounting hole.

[0051] Furthermore, a plurality of scrapers 8410 distributed in an annular manner are fixed to the surface of the pressure plate 841, and the scrapers 8410 are located between the first sealing ring 848 and the second sealing ring 849, and the scrapers 8410 and the outer ports of the cavity 846 are alternately arranged. When the pressure plug 816 compresses the sealant in the cavity between the sleeve 842 and the round rod segment 812, the sealant can pass through the cavity 846 and be squeezed out from the outer port of the cavity 846. Since the guide wheel 845 on the rotating shaft 844 rolls on the spiral ear 817 on the outer side of the round rod segment 812, the glue coating assembly 84 can rotate slowly relative to the driving rod 81, and then the sealant squeezed out from the outer ports of each cavity 846 can be evenly spread in the gap between the seat ring and the mounting hole at the bottom of the engine cylinder head through the scraper 8410 between the first sealing ring 848 and the second sealing ring 849, so as to fix the seat ring and seal the gap.

[0052] After the engine cylinder head is fixed by the fixing device 6, the first pressing cylinder 2 drives the support platform 3 to descend, and the second pressing cylinder 7 above drives the press-fitting mechanism 8 clamped with the conduit to move downward, and the conduit is loaded into the mounting hole at the top of the engine cylinder head. Then, the first pressing cylinder 2 drives the support platform 3 to rise, and the second pressing cylinder 7 below drives the press-fitting mechanism 8 clamped with the seat ring to move upward, and the seat ring is loaded into the mounting hole at the bottom of the engine cylinder head. The two press-fitting mechanisms 8 in the present invention have the same principle, and the process of installing the seat ring is described below as an example:

[0053] First, place the seat ring on the seat sleeve 86, and the seat ring is sleeved outside the inner pad 861. During the process of installing the seat ring, the two pads 871 can compress the third spring 873 and shrink into the spring groove 863 by squeezing the wedge-shaped pressure head of the clamping block 874 until the seat ring is sleeved outside the inner pad 861. The clamping block 874 is automatically clamped in the bayonet of the seat ring by the elastic force of the third spring 873, and supported by the two pads 871 at the bottom. The seat ring can be initially fixed by the automatic clamping of the wedge-shaped pressure head of the clamping block 874 and the bayonet, so as to facilitate the subsequent clamping and pressing.

[0054] After the seat ring is installed on the seat sleeve 86, the two first electromagnets 829 on the inner sleeve 822 and the outer sleeve 821 are energized to compress the second spring 8210, and the first connecting rod 825 is pulled by the second connecting rod 827 on the hinge seat 824, so that each clamping claw 826 rotates inward on the ear plate 823, and then the clamping portion 828 of the clamping claw 826 clamps the seat ring on the seat sleeve 86;

[0055] Then, the second pressure cylinder 7 below drives the seat ring to move toward the mounting hole at the bottom of the engine cylinder head, so that the seat ring gradually extends into the mounting hole. During this process, the clamping jaw 826, under the resistance of the bottom wall of the engine cylinder head, starts to push the outer sliding sleeve 821 to compress the first spring 83, so that the seat ring can gradually slide away from the clamping jaw 826 and be inserted into the mounting hole.

[0056] When the bottom of the seat ring is about to be inserted into the installation hole and the top of the pressure plate 841 is about to contact the bottom wall around the engine cylinder head hole, the two second electromagnets 872 are energized, so that the two cushion blocks 871 compress the third spring 873 and shrink into the spring groove 863, and at the same time, the wedge-shaped pressure head of the clamping block 874 is synchronously separated from the clamping mouth, and then the pressure plate 841 is bounced upward by the elastic force of the torsion spring 85 until it conflicts with the bottom wall around the engine cylinder head hole;

[0057] The second pressure cylinder 7 below continues to drive the seat ring to move toward the mounting hole at the bottom of the engine cylinder head. Since the pressure plate 841 is resisted by the bottom wall around the engine cylinder head hole, the drive rod 81 begins to move upward relative to the glue coating assembly 84, and then the pressure plug 816 begins to compress the sealant in the cavity between the upper sleeve 842 and the round rod segment 812, so that the sealant can pass through the cavity 846 and be squeezed out from the outer port of the cavity 846. Since the guide wheel 845 on the rotating shaft 844 rolls on the spiral ear 817 on the outer side of the round rod segment 812, the glue coating assembly 84 can slowly rotate relative to the drive rod 81, and then the sealant squeezed out of the outer port of each cavity 846 can be evenly spread in the gap between the seat ring and the mounting hole at the bottom of the engine cylinder head through the scraper 8410 between the first sealing ring 848 and the second sealing ring 849, so as to fix the seat ring and seal the gap.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. 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. A catheter seat ring press machine, comprising a base (1) and a support platform (3) suspended above the base (1), a first pressure cylinder (2) capable of driving the support platform (3) to perform lifting movement is fixed on the base (1), a fixing device (6) for fixing an engine cylinder head is arranged below the support platform (3), a seat plate (4) and a movable trolley (5) for driving the seat plate (4) to move horizontally along the length direction of the support platform (3) are arranged at the bottom of the support platform (3), second pressure cylinders (7) located above and below the engine cylinder head are fixed on the seat plate (4), and two second pressure cylinders (7) are provided with a press mechanism (8) for assembling a catheter or a seat ring on the engine cylinder head, characterized in that: The press-fitting mechanism (8) comprises a driving rod (81) that moves vertically under the drive of the second pressing cylinder (7); A seat sleeve (86) for supporting a guide tube or a seat ring is fixed to one end of the driving rod (81) away from the second pressure cylinder (7); The outer side of the driving rod (81) is provided with a clamping assembly (82) for clamping the conduit or the seat ring onto the seat sleeve (86); The clamping assembly (82) is elastically connected to the driving rod (81) via a first spring (83); The seat cover (86) is provided with a support cushion assembly (87) for supporting the conduit or the seat ring and capable of expansion and contraction; The seat sleeve (86) is provided with a glue coating component (84) for coating glue on the pores of the conduit or the seat ring after installation; The glue coating assembly (84) is elastically connected to the driving rod (81) via a torsion spring (85).

2. A catheter seat ring press-fitting machine according to claim 1, characterized in that: The driving rod (81) comprises a flower rod segment (811), one end of the flower rod segment (811) is fixed to the output end of the second pressure cylinder (7), the other end of the flower rod segment (811) is fixed with a round rod segment (812), a first stop ring (813) is fixed to the outer side of the bottom of the flower rod segment (811), a second stop ring (815) is fixed to the outer side of the top of the flower rod segment (811), and a lower pressure ring (814) is fixed to the outer side of the round rod segment (812).

3. A catheter seat ring press-fitting machine according to claim 2, characterized in that: The clamping assembly (82) comprises an outer sliding sleeve (821) and an inner sliding sleeve (822), wherein the outer sliding sleeve (821) is slidably mounted outside the inner sliding sleeve (822), and the inner sliding sleeve (822) is slidably mounted outside the flower rod section (811), and first electromagnets (829) are fixed on opposite sides of the outer sliding sleeve (821) and the inner sliding sleeve (822), and the two first electromagnets (829) are elastically connected via a second spring (8210), and the outer sliding sleeve A plurality of annularly distributed ear plates (823) are fixed outside (821), a hinge seat (824) corresponding to the ear plate (823) is fixed on the top of the inner sleeve (822), a clamping claw (826) is hinged on the ear plate (823) through two first connecting rods (825), the hinge seat (824) is hinged to an inner first connecting rod (825) through a second connecting rod (827), and a clamping portion (828) is provided at the end of the clamping claw (826).

4. A catheter seat ring press-fitting machine according to claim 3, characterized in that: One end of the first spring (83) abuts against the outer sliding sleeve (821), and the other end of the first spring (83) abuts against the first stop ring (813).

5. The catheter seat ring press-fitting machine according to claim 2, characterized in that: The seat cover (86) comprises an inner pad (861), wherein the inner pad (861) is fixed to the top of the round rod segment (812), a base lining (862) is fixed to the bottom of the inner pad (861), and a spring groove (863) is provided inside the inner pad (861).

6. A catheter seat ring press-fitting machine according to claim 5, characterized in that: The support pad assembly (87) includes two symmetrically distributed pads (871), and a second electromagnet (872) that is slidably limited in a spring groove (863) is fixed to the adjacent ends of the two pads (871). The two second electromagnets (872) are elastically connected via a third spring (873). The two pads (871) extend outward from the spring groove (863) to the outside of the inner pad (861), and a clamping block (874) is fixed to the top of the two pads (871).

7. The catheter seat ring press-fitting machine according to claim 2, characterized in that: The glue coating assembly (84) comprises a pressure plate (841), the pressure plate (841) is in the shape of a cover, a sleeve (842) sleeved outside the round rod segment (812) is fixed at the bottom of the pressure plate (841), an upper pressure ring (843) is fixed at the bottom of the sleeve (842), two ends of the torsion spring (85) are respectively clamped on the upper pressure ring (843) and the lower pressure ring (814), two rotating shafts (844) are symmetrically fixed on the inner side of the bottom of the sleeve (842), and the two rotating shafts (844) are rotatably connected to guide wheels (845) A spiral ear piece (817) that contacts the two guide wheels (845) is fixed on the outside of the round rod segment (812), a pressure plug (816) that fits in the clamping cavity of the sleeve (842) is fixed on the outside of the round rod segment (812), a plurality of guide holes (818) are opened on the pressure plug (816), and a first one-way valve (819) is arranged in the guide hole (818), a cavity (846) that communicates with the clamping cavity above the pressure plug (816) is opened in the pressure plate (841), and a second one-way valve (847) is arranged in the cavity (846).

8. The catheter seat ring press-fitting machine according to claim 7, characterized in that: A first sealing ring (848) and a second sealing ring (849) are fixedly embedded on the surface of the pressure plate (841); the first sealing ring (848) is located outside the outer port of the cavity (846), and the second sealing ring (849) is located inside the outer port of the cavity (846).

9. A catheter seat ring press-fitting machine according to claim 8, characterized in that: A plurality of scrapers (8410) distributed in an annular manner are fixed on the surface of the pressure plate (841), and the scrapers (8410) are located between the first sealing ring (848) and the second sealing ring (849), and the scrapers (8410) and the outer ports of the cavity (846) are arranged alternately.

10. The catheter seat ring press-fitting machine according to claim 6, characterized in that: A wedge-shaped pressure head is provided on the top of the clamping block (874), and a clamping socket matched with the wedge-shaped pressure head is provided on the inner side of the bottom opening of the conduit or the seat ring.

Images