Novel lining vacuum liquid filling and pressing equipment

Abstract

The invention discloses novel lining vacuum liquid filling and hydraulic loading equipment, and relates to the technical field of hydraulic lining production, the novel lining vacuum liquid filling and hydraulic loading equipment comprises a machine body, a liquid filling device, an upper fixing plate and a lower fixing plate are arranged in the machine body, an upper tool capable of sliding up and down is arranged on the upper fixing plate, and the upper tool is connected with the output end of an oil cylinder; the oil cylinder is arranged at the top end of the machine body; a lower tool is arranged on the lower fixing plate, the lower tool comprises a lower tool sealing barrel and a lining fixing clamp, the upper tool comprises an upper tool sealing barrel and a hemming pressing head, the lower tool sealing barrel is in clamping and sealing fit with the upper tool sealing barrel, and the liquid filling device comprises a liquid filling nozzle, a dripping liquid collecting box and a check valve. A vacuum sealing environment can be created for the press fitting and liquid filling work of the bushing, the stability and the yield of a finished hydraulic bushing product are guaranteed, and the production efficiency is improved. In addition, the liquid filling nozzle has the advantage of preventing the liquid filling nozzle from leaking and damping liquid from falling onto working equipment after liquid filling is completed.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic bushing production, and in particular to a novel bushing vacuum filling and hydraulic assembly equipment. Background Art

[0002] Hydraulic bushings are widely used in vehicles (such as automobiles and rail vehicles). They are mainly installed on the suspension or bogie of the vehicle to buffer vibration and impact to improve the stability and safety of the vehicle. The internal structure of the hydraulic bushing is mainly composed of a rubber part, a liquid storage cavity and a flow channel, in which the internal liquid storage cavity and the flow channel are filled with damping fluid; when the bushing is impacted by a vibration source, the damping fluid will flow in the flow channel, and the impact energy will be quickly absorbed, thereby eliminating the vibration, thereby achieving the purpose of improving the stability of the vehicle.

[0003] like Figure 1 The hydraulic bushing shown in the figure is usually assembled using dry filling technology, which requires designing a filling hole on the product. The hydraulic bushing is first assembled in batches into semi-finished products without filling, and then centrally filled with liquid and sealed, wherein the sealing method is to use rivets to plug the filling hole. However, this filling and sealing method has the following problems: poor stability, low yield rate, high risk of leakage when the product is put into use, and low production efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a new type of bushing vacuum filling and assembly equipment to solve the problems of poor stability, low yield, high risk of leakage when the product is put into use and low production efficiency in the liquid filling and sealing method of the hydraulic bushing in the prior art mentioned in the background technology.

[0005] The present invention adopts the following technical solution:

[0006] The present invention discloses a novel bushing vacuum filling hydraulic assembly equipment, comprising a fuselage, wherein an upper fixing plate and a lower fixing plate opposite to each other are fixedly arranged in the fuselage, an upper tooling which can slide up and down is arranged on the upper fixing plate, the upper tooling is connected to the output end of the oil cylinder, and the oil cylinder is arranged at the top of the fuselage;

[0007] The lower fixing plate is provided with a lower tooling, the lower tooling is located directly below the upper tooling, the lower tooling includes a lower tooling sealing barrel and a bushing fixing fixture, a vacuum channel is provided on the lower tooling sealing barrel, the bushing fixing fixture is dynamically connected to the bushing fixing cylinder, the bushing fixing fixture is clamped and matched with the outer wall of the bushing shell, a bushing tensioning fixture is provided below the bushing fixing fixture, the bushing tensioning fixture is sealingly slidably provided in the lower fixing plate, the bushing tensioning fixture is clamped and matched with the lower sealing end, the bushing tensioning fixture is provided on a pushing device, and the pushing device is provided on the lower end surface of the lower fixing plate;

[0008] The upper tooling includes an upper tooling sealing barrel and a crimping head, the lower tooling sealing barrel is clamped and sealed with the upper tooling sealing barrel, and the crimping head is tightly matched with the bushing upper cover;

[0009] A liquid filling device is arranged in the fuselage, and the liquid filling device comprises a liquid filling nozzle which can be extended to the top of the bushing fixing fixture.

[0010] Furthermore, the liquid filling nozzle is connected to the liquid pipeline, a check valve is provided between the liquid filling nozzle and the liquid pipeline, a dripping liquid collection box is provided below the liquid filling nozzle, and the dripping liquid collection box is fixedly connected to the collection box fixing rod;

[0011] The liquid pipeline and the collecting box fixing rod are slidably arranged in the pipeline frame;

[0012] The pipe rack is fixedly connected with a liquid filling nozzle moving cylinder, the telescopic end of the liquid filling nozzle moving cylinder is fixedly connected to a connecting block, the connecting block is fixedly connected to the liquid pipe, and the connecting block is located between the liquid filling nozzle and the pipe rack;

[0013] The end of the collecting box fixing rod is fixedly connected to a connecting frame, the connecting frame is slidably connected to the liquid pipeline, a first spring is sleeved on the side of the liquid pipeline away from the connecting frame, one end of the first spring abuts against the connecting frame, a limiting ring is fixedly connected to the liquid pipeline, and the other end of the first spring abuts against the limiting ring;

[0014] A spring limiting frame is arranged on one side of the connecting frame facing the first spring, and the spring limiting frame is in limiting cooperation with the limiting ring.

[0015] Furthermore, the pipe rack is slidably arranged on a base, a column is arranged on the base, a height adjustment seat is slidably connected to the column, and the pipe rack is fixedly connected to the height adjustment seat.

[0016] Furthermore, the upper tooling includes an upper tooling fixing plate, the upper end surface of which is fixedly connected with a guide slide column, and the guide slide column is slidably connected to the upper fixing plate;

[0017] A force sensor is fixedly connected to the upper end surface of the upper tooling fixing plate, a circular hole is provided in the upper fixing plate, and the output end of the oil cylinder passes through the circular hole and is fixedly connected to the force sensor;

[0018] A magnetic linear guide is fixedly connected to the upper end surface of the upper tooling fixing plate, and a reserved hole for the magnetic linear guide to pass through and a displacement detection magnetic switch are provided on the upper fixing plate. The magnetic linear guide cooperates with the displacement detection magnetic switch after passing through the upper fixing plate.

[0019] Furthermore, the lower end surface of the upper tooling fixing plate is fixedly connected with a tooling piston rod, the lower end surface of the tooling piston rod is fixedly connected with the crimping pressure head, the outer wall of the tooling piston rod is sealingly and slidably connected with an upper tooling sealing end cover, and the lower end surface of the upper tooling sealing end cover is sealingly and fixedly connected with the upper tooling sealing barrel;

[0020] A plurality of guide sliding spring rods are fixedly connected to the lower end surface of the upper tooling fixing plate, and the guide sliding spring rods are slidably connected and limitedly matched with the upper tooling sealing end cover. A second spring is sleeved on the outer side of the guide sliding spring rod, and one end of the second spring is in contact with the upper tooling fixing plate, and the other end of the second spring is in contact with the upper tooling sealing end cover.

[0021] Furthermore, a concave cavity is provided in the tooling piston rod, and a third spring, a pre-compression head fixing block and a pre-compression head are provided in the concave cavity, one end of the third spring is in abutment with the inner wall of the tooling piston rod, and the other end of the third spring is in abutment with the upper end surface of the pre-compression head fixing block, and the lower end surface of the pre-compression head fixing block is fixedly connected with the pre-compression head, a pre-compression cavity is provided in the crimping head, and the outer wall of the pre-compression head is slidably connected with the inner wall of the pre-compression cavity;

[0022] The shape of the pre-compression cavity matches the shape of the bushing upper cover, and a cavity matching the shape of the bushing upper cover is provided in the pre-compression head;

[0023] The lower port of the cavity is fixedly connected with a limiting block, and the limiting block is limitedly matched with the pre-pressing head fixing block.

[0024] Further, the lower tooling sealing barrel is sealingly fixedly connected to the lower fixed plate, a sealing guide sleeve is sealingly connected to the side wall of the lower tooling sealing barrel, the sealing guide sleeve is sealingly slidably connected to a sealing rod, one end of the sealing rod is fixedly connected to the bushing fixing fixture, the other end of the sealing rod is connected to the output end of the bushing fixing cylinder through a first cylinder floating joint, and the bushing fixing cylinder is fixedly connected to the lower fixed plate;

[0025] A clamp slide block is provided at the bottom of the bushing fixing clamp, the clamp slide block is slidably connected to the guide plate, and the guide plate is fixedly connected to the lower fixing plate.

[0026] Furthermore, a sliding cavity is provided in the lower fixed plate, and the bushing tensioning fixture is sealingly and slidingly connected to the sliding cavity;

[0027] The lower outer wall of the bushing tensioning fixture is sealingly and slidably connected with a lower tooling sealing end cover, and the lower tooling sealing end cover is sealingly and fixedly connected to the lower end surface of the lower fixing plate.

[0028] Further, the bushing tensioning clamp comprises a sealing piston cylinder, the upper part of which is fixedly connected with a clamping sleeve cover, the clamping sleeve cover is slidably arranged in the sliding cavity, a plurality of sliding pressure heads arranged in an annular manner are radially slidably connected in the clamping sleeve cover, a lower pull rod is fixedly arranged on the lower sealing end, and the sliding pressure head is clamped and matched with the lower pull rod;

[0029] The outer wall of the sealing piston cylinder is sealingly and slidingly connected with the sealing end cover of the lower tooling, a clamping concave cylinder is slidably connected inside the sealing piston cylinder, an extrusion slope is provided on the inner wall of the upper port of the clamping concave cylinder, and a docking slope is provided at the lower end of the sliding pressure head, and the docking slope is slidably matched with the extrusion slope;

[0030] A lifting piston rod is fixedly connected to the bottom of the clamping concave cylinder, and the lifting piston rod is sealingly and slidingly connected in the sealing piston cylinder, and the lower end of the lifting piston rod is fixedly connected to the output end of the clamping cylinder through the second cylinder floating joint;

[0031] The ejection device comprises an ejection plate, the upper end surface of the ejection plate is fixedly connected to the output end of the ejection cylinder, the ejection cylinder is fixedly connected to the lower end surface of the lower fixed plate, and the upper end surface of the ejection plate is fixedly connected to the sealing piston cylinder through a vertical rod;

[0032] The lower end surface of the ejector plate is fixedly connected with the clamping cylinder, and a reserved hole for the output end of the clamping cylinder to pass through is arranged in the ejector plate, and the ejector plate is movably arranged in the limit frame, and the limit frame is fixedly connected to the lower end surface of the lower tooling sealing end cover.

[0033] Furthermore, a clamping cavity is provided at the center of the clamping cover, the clamping end of the sliding pressure head is movably provided in the clamping cavity, a clamping spring is provided on the side arm of the sliding pressure head, one end of the clamping spring abuts against the side arm of the sliding pressure head, and the other end of the clamping spring abuts against the clamping cover;

[0034] The clamping sleeve cover is provided with a slide groove matched with the side arm of the sliding pressure head;

[0035] Anti-slip grooves are arranged inside the clamping end of the sliding pressure head.

[0036] Compared with the prior art, the beneficial technical effects of the present invention are:

[0037] The new bushing vacuum filling and hydraulic assembly equipment provided by the present invention can form a vacuum sealing environment after the upper and lower toolings are molded together, and the bushing cover is pressed and crimped in the vacuum environment so that the bushing cover is tightly pressed into the bushing shell, thereby ensuring the stability and yield rate of the finished hydraulic bushing. There is no need to design a filling hole on the product and then use rivets to plug the filling hole, thereby reducing the risk of product leakage and improving production efficiency. In addition, the present invention also designs a dripping liquid collection box to prevent the damping liquid from dripping from the filling nozzle after the filling is completed and falling on the working equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention will be further described below in conjunction with the accompanying drawings.

[0039] Figure 1 It is a schematic diagram of the hydraulic bushing structure mentioned in the background technology;

[0040] Figure 2 A cross-sectional view of the hydraulic bushing mentioned in the background technology;

[0041] Figure 3 This is a front view of the new bushing vacuum filling hydraulic assembly equipment of the present invention;

[0042] Figure 4 This is a schematic diagram of the structure of the new bushing vacuum filling hydraulic assembly equipment of the present invention;

[0043] Figure 5 It is a structural schematic diagram of a liquid filling device in a new type of bushing vacuum filling hydraulic assembly equipment of the present invention;

[0044] Figure 6 It is a front view of the filling device in the new bushing vacuum filling hydraulic assembly equipment of the present invention;

[0045] Figure 7 The upper tooling structure of the new bushing vacuum filling hydraulic assembly equipment of the present invention is schematically shown. Figure 1 ;

[0046] Figure 8 The upper tooling structure of the new bushing vacuum filling hydraulic assembly equipment of the present invention is schematically shown. Figure 2 ;

[0047] Fig. 9 It is a cross-sectional view of the upper tooling in the new bushing vacuum filling hydraulic assembly equipment of the present invention;

[0048] Fig.10 The schematic diagram of the lower tooling structure after removing the lower fixing plate in the new bushing vacuum filling hydraulic assembly equipment of the present invention is shown in FIG. Figure 1 ;

[0049] Fig.11 The schematic diagram of the lower tooling structure after removing the lower fixing plate in the new bushing vacuum filling hydraulic assembly equipment of the present invention is shown in FIG. Figure 2 ;

[0050] Fig.12 It is a cross-sectional view of the lower tooling in the new bushing vacuum filling hydraulic assembly equipment of the present invention;

[0051] Fig.13 It is a schematic diagram of the structure of the bushing fixing fixture in the novel bushing vacuum filling hydraulic assembly equipment of the present invention;

[0052] Fig.14 It is a schematic diagram of the structure of the bushing tensioning fixture in the novel bushing vacuum filling hydraulic assembly equipment of the present invention;

[0053] Fig.15 It is a cross-sectional view of a bushing tensioning fixture in the novel bushing vacuum filling hydraulic assembly equipment of the present invention;

[0054] Fig.16 It is a schematic diagram of the structure of the clamping sleeve cover in the new bushing vacuum filling hydraulic assembly equipment of the present invention;

[0055] Fig.17 The schematic diagram of the sliding pressure head structure in the new bushing vacuum filling and hydraulic assembly equipment of the present invention is shown in FIG. Figure 1 ;

[0056] Fig.18 The schematic diagram of the sliding pressure head structure in the new bushing vacuum filling and hydraulic assembly equipment of the present invention is shown in FIG. Figure 2 ;

[0057] Fig.19 The schematic diagram of the sliding pressure head structure in the new bushing vacuum filling and hydraulic assembly equipment of the present invention is shown in FIG. Figure 3 ;

[0058] Fig. 20 It is a schematic diagram of the structure of the clamping concave cylinder in the new bushing vacuum filling hydraulic assembly equipment of the present invention.

[0059] Explanation of reference numerals: 1. upper tooling; 1-1. upper tooling fixing plate; 1-2. tooling piston rod; 1-3. guide sliding piston rod; 1-4. upper tooling sealing end cover; 1-5. upper tooling sealing barrel; 1-6. vacuum pressure gauge; 1-7. third spring; 1-8. pre-compression head fixing block; 1-9. pre-compression head; 1-10. limit block; 1-11. crimping head; 1-12. pre-compression cavity; 1-13. second spring; 1-14. concave cavity; 2. filling device; 2-1. dripping liquid collection box; 2-2. filling nozzle; 2-3. check valve; 2-4. liquid pipe 2-4-1, limit ring; 2-5, connection block; 2-6, height adjustment seat; 2-7, column; 2-8, filling nozzle moving cylinder; 2-9, base; 2-10, first spring; 2-11, adapter; 2-12, spring limit frame; 2-13, liquid pipeline hole; 2-14, pipeline frame; 3, lower tooling; 3-1, lower tooling sealing barrel; 3-2, first cylinder floating joint; 3-3, bushing fixing cylinder; 3-3-1, U-shaped frame; 3-4, bushing fixing fixture; 3-5, vacuum channel; 3-6, bushing tensioning fixture; 3-6-1, Sealing piston cylinder; 3-6-2, clamping sleeve cover; 3-6-3, sliding pressure head; 3-6-4, clamping concave cylinder; 3-6-5, extrusion slope; 3-6-6, docking slope; 3-6-7, lifting piston rod; 3-6-8, second cylinder floating joint; 3-6-9, clamping cylinder; 3-6-10, clamping cavity; 3-6-11, clamping spring; 3-6-12, slide groove; 3-6-13, anti-slip pattern; 3-7, ejection device; 3-7-1, ejection plate; 3-7-2, vertical rod; 3-7-3, ejection cylinder; 3-8, lower tooling sealing end cover; 3-9, limit frame; 3-10, guide plate; 3-11, clamp slider; 3-12, sealing guide sleeve; 3-13, sealing rod; 4, magnetic linear guide; 4-1, displacement detection magnetic switch; 5, hydraulic bushing; 5-1, bushing housing; 5-2, lower sealing end; 5-2-1, vulcanized rubber; 5-2-2, lower pull rod; 5-3, bushing upper cover; 6, force sensor; 7, guide column; 8, upper fixing plate; 8-1, round hole; 9, lower fixing plate; 9-1, fixed connecting rod; 9-2, sliding cavity; 10, cylinder; 11, control panel; 12, fuselage. DETAILED DESCRIPTION

[0060] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0061] like Figure 1 to Figure 2As shown, the hydraulic bushing 5 in this embodiment is a prior art means. Specifically, the hydraulic bushing 5 includes a bushing shell 5-1, a lower sealing end 5-2 and a bushing upper cover 5-3. The upper part of the lower sealing end 5-2 is provided with elastic vulcanized rubber 5-2-1, and the bottom center of the lower sealing end 5-2 is fixedly connected with a lower pull rod 5-2-2. When filling with liquid, the bushing shell 5-1 is clamped, and the lower pull rod 5-2-2 is pulled downward to increase the internal volume of the bushing, and then the liquid is poured into the bushing shell 5-1, and the bushing upper cover 5-3 is covered for press-fitting and curling, and finally the lower pull rod 5-2-2 is released to reset it.

[0062] like Figure 3 and Figure 4 As shown, this embodiment discloses a novel bushing vacuum filling hydraulic assembly equipment, including a body 12, a control panel 11 is arranged on the body 12, an upper fixing plate 8 and a lower fixing plate 9 are fixedly arranged in the body 12, and the lower fixing plate 9 is fixedly connected to the upper fixing plate 8 by a fixed connecting rod 9-1, and an upper tooling 1 that can slide up and down is arranged on the upper fixing plate 8, and the upper tooling 1 is connected to the output end of the oil cylinder 10, and is pushed downward by the oil cylinder 10, and the oil cylinder 10 is arranged at the top of the body 12. The lower fixing plate 9 is provided with a lower tooling 3, and the lower tooling 3 is located directly below the upper tooling 1. When working, the upper tooling 1 is pressed down and sealed with the lower tooling 3.

[0063] In this embodiment, the upper tooling 1 includes an upper tooling fixing plate 1-1, and the upper end surface of the upper tooling fixing plate 1-1 is fixedly connected with a guide slide column 7, and the guide slide column 7 is slidably connected to the upper fixing plate 8. The upper end surface of the upper tooling fixing plate 1-1 is fixedly connected with a force sensor 6, and a circular hole 8-1 is provided in the upper fixing plate 8. The output end of the oil cylinder 10 passes through the circular hole 8-1 and is fixedly connected to the force sensor 6. The force sensor 6 is used to detect the downward thrust data generated by the oil cylinder 10. When the oil cylinder 10 is working, it pushes the force sensor 6 downward, so that the upper tooling 1 moves downward under the guiding action of the guide slide column 7, so that the upper tooling 1 and the lower tooling 3 are molded.

[0064] In this embodiment, a magnetic linear guide 4 is fixedly connected to the upper end surface of the upper tooling fixing plate 1-1, and a reserved hole for the magnetic linear guide 4 to pass through and a displacement detection magnetic switch 4-1 are provided on the upper fixing plate 8. The magnetic linear guide 4 cooperates with the displacement detection magnetic switch 4-1 after passing through the upper fixing plate 8. The oil cylinder 10 pushes the upper tooling fixing plate 1-1 to move, which will drive the magnetic linear guide 4 to move downward, and at this time, the displacement detection magnetic switch 4-1 can sense the displacement data.

[0065] like Figures 5 and 6As shown, a liquid filling device 2 is provided in the body 12, and the liquid filling device 2 includes a liquid filling nozzle 2-2 that can extend above the bushing fixing fixture 3-4, and the liquid filling nozzle 2-2 is connected to the liquid pipeline 2-4, and the end of the liquid pipeline 2-4 is connected to an external liquid filling device through an adapter 2-11. A check valve 2-3 is provided between the liquid filling nozzle 2-2 and the liquid pipeline 2-4 to prevent liquid backflow, and a dripping liquid collection box 2-1 is provided below the liquid filling nozzle 2-2, and the dripping liquid collection box 2-1 is fixedly connected to the collection box fixing rod 2-15.

[0066] In this embodiment, the liquid pipeline 2-4 and the collection box fixing rod 2-15 are slidably arranged in the pipeline frame 2-14, and the pipeline frame 2-14 is slidably arranged on the base 2-9. The pipeline frame 2-14 is fixedly connected with the liquid filling nozzle moving cylinder 2-8, and the telescopic end of the liquid filling nozzle moving cylinder 2-8 is fixedly connected to the connecting block 2-5, and the connecting block 2-5 is fixedly connected to the liquid pipeline 2-4, and the connecting block 2-5 is located between the liquid filling nozzle 2-2 and the pipeline frame 2-14.

[0067] The end of the collecting box fixing rod 2-15 is fixedly connected with a connecting frame 2-13, and the connecting frame 2-13 is slidably connected with the liquid pipeline 2-4. The side of the liquid pipeline 2-4 away from the connecting frame 2-13 is sleeved with a first spring 2-10, and one end of the first spring 2-10 abuts against the connecting frame 2-13. The liquid pipeline 2-4 is fixedly connected with a limiting ring 2-4-1, and the other end of the first spring 2-10 abuts against the limiting ring 2-4-1. The connecting frame 2-13 is fixedly connected with a spring limiting frame 2-12 on the side facing the first spring 2-10, and the spring limiting frame 2-12 cooperates with the limiting ring 2-4-1. During the filling operation, the filling nozzle moving cylinder 2-8 is started to push the connecting block 2-5 and the filling nozzle 2-2 forward. Since the first spring 2-10 itself is in a compressed state in the initial state, the connecting frame 2-13 and the collecting box fixing rod 2-15 are pushed forward together with the limit ring 2-4-1 and the first spring 2-10 while the liquid pipeline 2-4 moves forward, so that the dripping liquid collecting box 2-1 moves forward with the filling nozzle 2-2. When it reaches the vicinity of the upper part of the bushing shell 5-1, the connecting frame 2-13 abuts against the pipe frame 2-14. At this time, the dripping liquid collecting box 2-1 stops moving, and the filling nozzle moving cylinder 2-8 continues to work. At this time, the first spring 2-10 continues to be compressed, the limit ring 2-4-1 moves toward the connecting frame 2-13, and the filling nozzle 2-2 continues to move forward to reach the upper part of the bushing shell 5-1 for filling. After the filling is finished, the filling nozzle moving cylinder 2-8 retracts, the first spring 2-10 is reset, the limit ring 2-4-1 is pressed against the spring limit frame 2-12 again, and the filling nozzle 2-2 returns to the top of the dripping liquid collection box 2-1 to prevent the dripping liquid from falling on the equipment, and then the filling nozzle moving cylinder 2-8 continues to reset, and the filling nozzle 2-2 and the dripping liquid collection box 2-1 are reset to the initial state together. The liquid in the dripping liquid collection box 2-1 can be processed uniformly.

[0068] In this embodiment, a column 2-7 is provided on the base 2-9, a height adjustment seat 2-6 is slidably connected to the column 2-7, the height adjustment seat 2-6 is fastened to the column 2-7 by bolts, and the pipe rack 2-14 is fixedly connected to the height adjustment seat 2-6. When the height of the filling nozzle 2-2 needs to be adjusted, the bolts can be loosened to slide the pipe rack 2-14 and the height adjustment seat 2-6 on the column 2-7 to a suitable height.

[0069] like Figures 7 to 9 As shown, the upper tooling 1 includes an upper tooling sealing barrel 1-5 and a crimping head 1-11. When the upper tooling 1 is molded with the lower tooling 3, the lower tooling sealing barrel 3-1 is clamped and sealed with the upper tooling sealing barrel 1-5, and the crimping head 1-11 is tightly fitted with the bushing upper cover 5-3. In this embodiment, the upper tooling sealing barrel 1-5 is also provided with a vacuum pressure gauge 1-6 for displaying the vacuum state inside the upper tooling sealing barrel 1-5.

[0070] The lower end surface of the upper tooling fixing plate 1-1 is provided with a tooling piston rod 1-2 fixedly connected by a bolt assembly, the lower end surface of the tooling piston rod 1-2 is fixedly connected to the crimping pressure head 1-11, the outer wall of the tooling piston rod 1-2 is sealingly and slidingly connected with an upper tooling sealing end cover 1-4, and the lower end surface of the upper tooling sealing end cover 1-4 is sealingly and fixedly connected to the upper tooling sealing barrel 1-5 by a bolt assembly.

[0071] A plurality of guide sliding spring rods 1-3 are fixedly connected to the lower end surface of the upper tooling fixed plate 1-1, and the guide sliding spring rods 1-3 are slidably connected to the upper tooling sealing end cover 1-4, and the ends of the guide sliding spring rods 1-3 are provided with limiting protrusions to prevent the upper tooling sealing end cover 1-4 from falling out. A second spring 1-13 is sleeved on the outer side of the guide sliding spring rods 1-3, one end of the second spring 1-13 is in contact with the upper tooling fixed plate 1-1, and the other end of the second spring 1-13 is in contact with the upper tooling sealing end cover 1-4. During the downward pressing process of the upper tooling 1, after the upper tooling sealing barrel 1-5 contacts the lower tooling sealing barrel 3-1, the upper tooling fixed plate 1-1 continues to press down, so that the tooling piston rod 1-2 continues to press down, while ensuring that the upper tooling sealing barrel 1-5 is in a closed state. At this time, the upper tooling sealing end cover 1-4 slides on the guide sliding spring rod 1-3, and the second spring 1-13 is compressed until the curling pressure head 1-11 presses the bushing upper cover 5-3. After the work is completed, the oil cylinder 10 is reset, the tooling piston rod 1-2 is reset, the second spring 1-13 is reset, and the end limit protrusion of the guide sliding spring rod 1-3 pulls the upper tooling sealing end cover 1-4 to reset, and finally drives the upper tooling sealing barrel 1-5 to reset.

[0072] A concave cavity 1-14 is provided in the tooling piston rod 1-2, and a third spring 1-7, a pre-stressing head fixing block 1-8 and a pre-stressing head 1-9 are provided in the concave cavity 1-14. One end of the third spring 1-7 is in abutment with the inner wall of the tooling piston rod 1-2, and the other end of the third spring 1-7 is in abutment with the upper end face of the pre-stressing head fixing block 1-8, and the lower end face of the pre-stressing head fixing block 1-8 is fixedly connected with the pre-stressing head 1-9. A pre-stressing cavity 1-12 is provided in the curling head 1-11, and the outer wall of the pre-stressing head 1-9 is slidably connected with the inner wall of the pre-stressing cavity 1-12. Among them, the shape of the pre-stressing cavity 1-12 matches the shape of the bushing upper cover 5-3, and a cavity matching the shape of the bushing upper cover 5-3 is provided in the pre-stressing head 1-9.

[0073] During operation, first, the lower tooling sealing barrel 3-1 contacts with the upper tooling sealing barrel 1-5 to form a sealed environment; then, the piston end of the oil cylinder 10 continues to work and extends downward, driving the tooling piston rod 1-2, the pre-stressing head fixing block 1-8, and the pre-stressing head 1-9 to continue to move downward, and the pre-stressing head 1-9 contacts with the bushing upper cover 5-3 and compresses the third spring 1-7 for pre-stressing (the second spring 1-13 is continuously compressed during this process); the oil cylinder 10 continues to work, and the curling head 1-11 presses the bushing upper cover 5-3 until the curling head 1-11 contacts with the bushing fixing fixture 3-4 to complete the curling sealing work.

[0074] In this embodiment, a lower port of the concave cavity 1-14 is fixedly connected with a limit block 1-10 for preventing the pressure head fixing block 1-8 from falling out, and the limit block 1-10 cooperates with the pre-pressure pressure head fixing block 1-8 in a limiting manner.

[0075] like Fig.10 and Fig.11 As shown, the lower tooling 3 includes a lower tooling sealing barrel 3-1 and a bushing fixing fixture 3-4. A vacuum channel 3-5 is provided on the lower tooling sealing barrel 3-1. When working, the vacuum channel 3-5 is sealed and connected to the air pipe and is connected to an external vacuum device. Therefore, the lower tooling sealing barrel 3-1 and the upper tooling sealing barrel 1-5 can be evacuated into a vacuum state with the help of the vacuum channel 3-5. After being filled with liquid, the hydraulic bushing 5 can be crimped and sealed in a vacuum environment so that the liquid can fill the entire inner cavity of the hydraulic bushing 5 and remove bubbles. In this embodiment, a sealing rubber pad is provided on the contact surface between the lower tooling sealing barrel 3-1 and the upper tooling sealing barrel 1-5, which is used for sealing when the upper tooling sealing barrel 1-5 is molded.

[0076] The bushing fixing fixture 3-4 is connected to the bushing fixing cylinder 3-3 through the sealing rod 3-13. In this embodiment, two bushing fixing fixtures 3-4 are provided. When the bushing fixing cylinder 3-3 works, it can push the two bushing fixing fixtures 3-4 to embrace each other, so that the bushing fixing fixture 3-4 is clamped and matched with the outer wall of the bushing shell 5-1. A bushing tensioning fixture 3-6 is provided below the bushing fixing fixture 3-4. The bushing tensioning fixture 3-6 is sealed and slidably provided in the lower fixing plate 9. The bushing tensioning fixture 3-6 is clamped and matched with the lower pull rod 5-2-2. The bushing tensioning fixture 3-6 is provided on the ejection device 3-7, and the ejection device 3-7 is provided on the lower end surface of the lower fixing plate 9.

[0077] like Fig.12 and Fig.13As shown, the lower tooling sealing barrel 3-1 is sealed and fixedly connected to the lower fixed plate 9, and a sealing guide sleeve 3-12 is sealed and connected to the side wall of the lower tooling sealing barrel 3-1. The sealing guide sleeve 3-12 is sealed and slidably connected to the sealing rod 3-13. One end of the sealing rod 3-13 is fixedly connected to the bushing fixing fixture 3-4, and the other end of the sealing rod 3-13 is connected to the output end of the bushing fixing cylinder 3-3 through the first cylinder floating joint 3-2. The bushing fixing cylinder 3-3 is fixedly connected to the lower fixed plate 9 through the U-shaped frame 3-3-1. When the bushing fixing cylinder 3-3 is working, the sealing rod 3-13 slides in a sealed manner in the sealing guide sleeve 3-12, and then the bushing fixing fixture 3-4 can be pushed to clamp the outer wall of the bushing shell 5-1 while ensuring that the lower tooling sealing barrel 3-1 is internally closed.

[0078] A fixedly connected clamp slider 3-11 is provided at the bottom of the bushing fixing clamp 3-4, and the clamp slider 3-11 is slidably connected to the guide plate 3-10, and the guide plate 3-10 is fixedly connected to the lower fixing plate 9. When the bushing fixing cylinder 3-3 works, the bushing fixing clamp 3-4 slides on the guide plate 3-10, so that the two bushing fixing clamps 3-4 can complete the embracing clamping action.

[0079] The lower fixed plate 9 is provided with a sliding cavity 9-2, and the bushing tensioning fixture 3-6 is sealingly and slidingly connected to the inner wall of the sliding cavity 9-2. The lower outer wall of the bushing tensioning fixture 3-6 is sealingly and slidingly connected to the lower tool sealing end cover 3-8, and the lower tool sealing end cover 3-8 is sealingly and fixedly connected to the lower end surface of the lower fixed plate 9.

[0080] like Figure 14 to Figure 15 As shown, in this embodiment, the bushing tensioning fixture 3-6 includes a sealing piston cylinder 3-6-1, and the outer wall of the sealing piston cylinder 3-6-1 is sealingly slidably connected in the lower tooling sealing end cover 3-8. The upper part of the sealing piston cylinder 3-6-1 is fixedly connected with a clamping sleeve 3-6-2 by bolts, and the outer wall of the clamping sleeve 3-6-2 is slidably connected to the inner wall of the sliding cavity 9-2. A plurality of sliding pressure heads 3-6-3 arranged in an annular shape are radially slidably connected in the clamping sleeve 3-6-2, and the sliding pressure heads 3-6-3 are clamped and matched with the lower pull rod 5-2-2.

[0081] A clamping concave cylinder 3-6-4 that can slide up and down is slidably connected in the sealing piston cylinder 3-6-1, and an extrusion slope 3-6-5 is provided on the inner wall of the upper port of the clamping concave cylinder 3-6-4. A docking slope 3-6-6 is provided at the lower end of the sliding pressure head 3-6-3, and the docking slope 3-6-6 and the extrusion slope 3-6-5 are slidably matched. When the clamping concave cylinder 3-6-4 moves upward, the extrusion slope 3-6-5 pushes the docking slope 3-6-6 to make the sliding pressure head 3-6-3 gather radially toward the center for clamping. The bottom of the clamping concave cylinder 3-6-4 is fixedly connected with a lifting piston rod 3-6-7 by bolts. The lifting piston rod 3-6-7 is sealingly slidably connected in the sealing piston cylinder 3-6-1, and the lower end of the lifting piston rod 3-6-7 is fixedly connected to the output end of the clamping cylinder 3-6-9 through the second cylinder floating joint 3-6-8.

[0082] In this embodiment, the ejection device 3-7 includes an ejection plate 3-7-1, the upper end surface of the ejection plate 3-7-1 is fixedly connected to the output end of the ejection cylinder 3-7-3, the ejection cylinder 3-7-3 is fixedly connected to the lower end surface of the lower fixed plate 9, and the upper end surface of the ejection plate 3-7-1 is fixedly connected to the sealing piston cylinder 3-6-1 through the vertical rod 3-7-2. The lower end surface of the ejection plate 3-7-1 is fixedly connected to the clamping cylinder 3-6-9, and the ejection plate 3-7-1 is provided with a reserved hole for the output end of the clamping cylinder 3-6-9 to pass through. The lower end surface of the lower tooling sealing end cover 3-8 is fixedly connected to the limiting frame 3-9, and the ejection plate 3-7-1 can be moved up and down in the limiting frame 3-9, and the limiting frame 3-9 plays a limiting role in the movement of the ejection plate 3-7-1.

[0083] During operation, the output end of the clamping cylinder 3-6-9 extends upward, pushing the lifting piston rod 3-6-7 and the clamping concave cylinder 3-6-4 upward, and the extrusion slope 3-6-5 of the clamping concave cylinder 3-6-4 pushes the docking slope 3-6-6, so that the sliding pressure head 3-6-3 moves toward the center and then clamps the lower pull rod 5-2-2. In the state of clamping the lower pull rod 5-2-2, the push cylinder 3-7-3 works, and the output end of the push cylinder 3-7-3 extends downward to push the push plate 3-7-1 downward, driving the clamping cylinder 3-6-9, the sealing piston cylinder 3-6-1, the clamping sleeve 3-6-2, and the sliding pressure head 3-6-3 to move downward, and then the lower pull rod 5-2-2 and the vulcanized rubber 5-2-1 can be pulled downward to stretch, so that the inner cavity volume of the bushing shell 5-1 increases, and then the filling process can be carried out.

[0084] like Figures 16 to 20As shown, as an implementation method for realizing the sliding connection of the sliding pressure head 3-6-3 in the clamping cover 3-6-2, in this embodiment, three sliding pressure heads 3-6-3 are provided, and a clamping cavity 3-6-10 is provided at the center of the clamping cover 3-6-2, and the clamping end of the sliding pressure head 3-6-3 is movably arranged in the clamping cavity 3-6-10. The sliding pressure head 3-6-3 is provided with a side arm, and a clamping spring 3-6-11 is provided on the side arm of the sliding pressure head 3-6-3. One end of the clamping spring 3-6-11 abuts against the end of the side arm of the sliding pressure head 3-6-3, and the other end of the clamping spring 3-6-11 abuts against the inside of the clamping cover 3-6-2. A sliding groove 3-6-12 that cooperates with the side arm of the sliding pressure head 3-6-3 is also provided in the clamping cover 3-6-2. An anti-slip pattern 3-6-13 is provided in the clamping end of the sliding pressure head 3-6-3.

[0085] When the extrusion bevel 3-6-5 pushes the docking bevel 3-6-6, the side arm of the sliding head 3-6-3 slides in the slide groove 3-6-12, the sliding head 3-6-3 gathers inward, the clamping spring 3-6-11 is compressed, and the anti-slip pattern 3-6-13 presses against the lower pull rod 5-2-2. When the output end of the clamping cylinder 3-6-9 is reset, the clamping concave cylinder 3-6-4 moves downward, and the elastic force of the clamping spring 3-6-11 pushes the sliding head 3-6-3 away from the center of the clamping cavity 3-6-10 to reset, thereby releasing the lower pull rod 5-2-2.

[0086] like Figures 1 to 20 As shown, the action process of the present invention is as follows:

[0087] First, clamp the bushing shell 5-1, place the bushing shell 5-1 in the bushing fixing fixture 3-4, start the bushing fixing cylinder 3-3 to push the two bushing fixing fixtures 3-4 to embrace each other, so that the bushing fixing fixtures 3-4 clamp the outer wall of the bushing shell 5-1. The clamping cylinder 3-6-9 is started, pushing the lifting piston rod 3-6-7 and the clamping concave cylinder 3-6-4 upward, and the extrusion slope 3-6-5 pushes the docking slope 3-6-6, so that the sliding pressure head 3-6-3 moves toward the center and clamps the lower pull rod 5-2-2; keeping the lower pull rod 5-2-2 clamped, the pushing cylinder 3-7-3 is started, pushing the pushing plate 3-7-1 downward, driving the sealing piston cylinder 3-6-1, the clamping sleeve cover 3-6-2, and the sliding pressure head 3-6-3 to move downward, and then the lower pull rod 5-2-2 can be pulled downward, and the vulcanized rubber 5-2-1 stretches, so that the inner cavity volume of the bushing shell 5-1 increases, and then the filling process can be carried out.

[0088] After that, the filling process is carried out, the lower pull rod 5-2-2 remains in the pulled-down state, the filling nozzle moving cylinder 2-8 is started, and the filling nozzle 2-2 and the dripping liquid collection box 2-1 are pushed forward to the vicinity of the upper part of the bushing shell 5-1, and the connecting frame 2-13 is against the pipe frame 2-14. At this time, the dripping liquid collection box 2-1 stops moving, and the filling nozzle moving cylinder 2-8 continues to work. At this time, the first spring 2-10 is continuously compressed, and the limit ring 2-4-1 moves toward the connecting frame 2-13. The filling nozzle 2-2 continues to move forward to reach the upper part of the bushing shell 5-1, and is connected to the external filling equipment with the help of the liquid pipeline 2-4 for filling. After the filling is completed, the filling nozzle moving cylinder 2-8 is reset, the first spring 2-10 is reset, and the filling nozzle 2-2 is retracted to the upper part of the dripping liquid collection box 2-1 and finally reset. During this filling process, the dripping liquid of the filling nozzle 2-2 falls into the dripping liquid collection box 2-1 to avoid falling on the equipment and causing pollution.

[0089] Finally, in the pressing process, the bushing upper cover 5-3 is placed on the bushing shell 5-1 after filling with liquid, and the lower pull rod 5-2-2 is kept in the pulled-down state. The oil cylinder 10 is started to push the upper tooling 1 downward, so that the upper tooling sealing barrel 1-5 and the lower tooling sealing barrel 3-1 are molded and sealed. At this time, the lower tooling sealing barrel 3-1 and the upper tooling sealing barrel 1-5 are evacuated with the help of the vacuum channel 3-5, and the vacuum pressure gauge 1-6 is observed until the desired vacuum state is reached and stopped. At this time, the upper tooling fixing plate 1-1 continues to press down, so that the tooling piston rod 1-2 continues to press down, the upper tooling sealing end cover 1-4 slides on the guide spring rod 1-3, the second spring 1-13 is compressed, the pre-pressing head 1-9 contacts the bushing upper cover 5-3, the third spring 1-7 is compressed, the bushing upper cover 5-3 is pre-pressed, and the tooling piston rod 1-2 continues to press down until the curling head 1-11 contacts the bushing fixing fixture 3-4, and the bushing upper cover 5-3 completes the press-fit curling sealing work. After the work is completed, the oil cylinder 10 is reset, the upper tooling 1 is reset, the clamping cylinder 3-6-9 is reset to release the lower pull rod 5-2-2, and the bushing fixing cylinder 3-3 is reset to remove the hydraulic bushing 5.

[0090] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A new type of bushing vacuum filling and hydraulic assembly equipment, characterized by: The machine comprises a body (12), wherein an upper fixing plate (8) and a lower fixing plate (9) are fixedly arranged in the body (12) and are opposed to each other in upper and lower directions; an upper tooling (1) which can slide up and down is arranged on the upper fixing plate (8); the upper tooling (1) is connected to the output end of an oil cylinder (10); and the oil cylinder (10) is arranged at the top of the body (12); The lower fixing plate (9) is provided with a lower tooling (3), the lower tooling (3) is located directly below the upper tooling (1), the lower tooling (3) comprises a lower tooling sealing barrel (3-1) and a bushing fixing fixture (3-4), the lower tooling sealing barrel (3-1) is provided with a vacuum channel (3-5), the bushing fixing fixture (3-4) is dynamically connected to the bushing fixing cylinder (3-3), and the bushing fixing fixture (3-4) is connected to the bushing housing (5 -1) The outer wall is clamped and matched, a bushing tensioning clamp (3-6) is arranged below the bushing fixing clamp (3-4), the bushing tensioning clamp (3-6) is sealingly slidably arranged in the lower fixing plate (9), the bushing tensioning clamp (3-6) is clamped and matched with the lower sealing end (5-2), the bushing tensioning clamp (3-6) is arranged on the ejection device (3-7), and the ejection device (3-7) is arranged on the lower end surface of the lower fixing plate (9); The upper tooling (1) comprises an upper tooling sealing barrel (1-5) and a crimping head (1-11); the lower tooling sealing barrel (3-1) is clamped and sealed with the upper tooling sealing barrel (1-5); and the crimping head (1-11) is tightly fitted with the bushing upper cover (5-3); A liquid filling device (2) is arranged in the body (12), and the liquid filling device (2) comprises a liquid filling nozzle (2-2) which can extend above the bushing fixing fixture (3-4).

2. The new bushing vacuum filling and assembly equipment according to claim 1 is characterized by: The liquid filling nozzle (2-2) is connected to the liquid pipeline (2-4), a check valve (2-3) is provided between the liquid filling nozzle (2-2) and the liquid pipeline (2-4), a dripping liquid collection box (2-1) is provided below the liquid filling nozzle (2-2), and the dripping liquid collection box (2-1) is fixedly connected to the collection box fixing rod (2-15); The liquid pipeline (2-4) and the collection box fixing rod (2-15) are slidably arranged in the pipeline frame (2-14); The pipe rack (2-14) is fixedly connected with a liquid filling nozzle moving cylinder (2-8), the telescopic end of the liquid filling nozzle moving cylinder (2-8) is fixedly connected to a connecting block (2-5), the connecting block (2-5) is fixedly connected to the liquid pipe (2-4), and the connecting block (2-5) is located between the liquid filling nozzle (2-2) and the pipe rack (2-14); The end of the collection box fixing rod (2-15) is fixedly connected to a connecting frame (2-13), the connecting frame (2-13) is slidably connected to the liquid pipeline (2-4), a first spring (2-10) is sleeved on the side of the liquid pipeline (2-4) away from the connecting frame (2-13), one end of the first spring (2-10) abuts against the connecting frame (2-13), a limiting ring (2-4-1) is fixedly connected to the liquid pipeline (2-4), and the other end of the first spring (2-10) abuts against the limiting ring (2-4-1); A spring limiting frame (2-12) is provided on one side of the connecting frame (2-13) facing the first spring (2-10), and the spring limiting frame (2-12) is in limiting cooperation with the limiting ring (2-4-1).

3. The new bushing vacuum filling and assembly equipment according to claim 2 is characterized by: The pipe rack (2-14) is slidably arranged on a base (2-9) up and down, a column (2-7) is arranged on the base (2-9), a height adjustment seat (2-6) is slidably connected to the column (2-7), and the pipe rack (2-14) is fixedly connected to the height adjustment seat (2-6).

4. The new bushing vacuum filling and assembly equipment according to claim 1 is characterized in that: The upper tooling (1) comprises an upper tooling fixing plate (1-1), the upper end surface of the upper tooling fixing plate (1-1) is fixedly connected with a guide slide column (7), and the guide slide column (7) is slidably connected to the upper fixing plate (8); A force sensor (6) is fixedly connected to the upper end surface of the upper tooling fixing plate (1-1), a circular hole (8-1) is provided in the upper fixing plate (8), and the output end of the oil cylinder (10) passes through the circular hole (8-1) and is fixedly connected to the force sensor (6); A magnetic linear guide rail (4) is fixedly connected to the upper end surface of the upper tooling fixing plate (1-1); a reserved hole for the magnetic linear guide rail (4) to pass through and a displacement detection magnetic switch (4-1) are provided on the upper fixing plate (8); and the magnetic linear guide rail (4) cooperates with the displacement detection magnetic switch (4-1) after passing through the upper fixing plate (8).

5. The new bushing vacuum filling and assembly equipment according to claim 4 is characterized in that: The lower end surface of the upper tool fixing plate (1-1) is fixedly connected to a tool piston rod (1-2), the lower end surface of the tool piston rod (1-2) is fixedly connected to the crimping head (1-11), the outer wall of the tool piston rod (1-2) is sealingly slidably connected to an upper tool sealing end cover (1-4), and the lower end surface of the upper tool sealing end cover (1-4) is sealingly fixedly connected to the upper tool sealing barrel (1-5); A plurality of guide sliding spring rods (1-3) are fixedly connected to the lower end surface of the upper tooling fixing plate (1-1), and the guide sliding spring rods (1-3) are slidably connected and limitedly matched with the upper tooling sealing end cover (1-4). A second spring (1-13) is sleeved on the outer side of the guide sliding spring rod (1-3), and one end of the second spring (1-13) is in abutment with the upper tooling fixing plate (1-1), and the other end of the second spring (1-13) is in abutment with the upper tooling sealing end cover (1-4).

6. The new bushing vacuum filling and assembly equipment according to claim 5 is characterized by: A concave cavity (1-14) is arranged in the tooling piston rod (1-2), and a third spring (1-7), a pre-pressing head fixing block (1-8) and a pre-pressing head (1-9) are arranged in the concave cavity (1-14); one end of the third spring (1-7) is in abutment with the inner wall of the tooling piston rod (1-2), and the other end of the third spring (1-7) is in abutment with the upper end surface of the pre-pressing head fixing block (1-8); the lower end surface of the pre-pressing head fixing block (1-8) is fixedly connected with the pre-pressing head (1-9); a pre-pressing cavity (1-12) is arranged in the crimping head (1-11), and the outer wall of the pre-pressing head (1-9) is slidably connected with the inner wall of the pre-pressing cavity (1-12); The shape of the pre-pressing cavity (1-12) matches the shape of the bushing upper cover (5-3), and a cavity matching the shape of the bushing upper cover (5-3) is provided in the pre-pressing head (1-9); The lower port of the concave cavity (1-14) is fixedly connected to a limiting block (1-10), and the limiting block (1-10) is limitedly matched with the pre-pressing head fixing block (1-8).

7. The new bushing vacuum filling and assembly equipment according to claim 1 is characterized by: The lower tooling sealing barrel (3-1) is sealingly fixedly connected to the lower fixed plate (9); a sealing guide sleeve (3-12) is sealingly connected to the side wall of the lower tooling sealing barrel (3-1); the sealing guide sleeve (3-12) is sealingly slidably connected to a sealing rod (3-13); one end of the sealing rod (3-13) is fixedly connected to the bushing fixing fixture (3-4); the other end of the sealing rod (3-13) is connected to the output end of the bushing fixing cylinder (3-3) through a first cylinder floating joint (3-2); and the bushing fixing cylinder (3-3) is fixedly connected to the lower fixed plate (9); A clamp slider (3-11) is provided at the bottom of the bushing fixing clamp (3-4), and the clamp slider (3-11) is slidably connected to the guide plate (3-10), and the guide plate (3-10) is fixedly connected to the lower fixing plate (9).

8. The new bushing vacuum filling and assembly equipment according to claim 1 is characterized by: A sliding cavity (9-2) is provided in the lower fixed plate (9), and the bushing tensioning clamp (3-6) is sealed and slidably connected to the sliding cavity (9-2); The lower outer wall of the bushing tensioning clamp (3-6) is sealingly and slidably connected to a lower tooling sealing end cover (3-8), and the lower tooling sealing end cover (3-8) is sealingly and fixedly connected to the lower end surface of the lower fixing plate (9).

9. The new bushing vacuum filling and assembly equipment according to claim 8 is characterized by: The bushing tensioning clamp (3-6) comprises a sealing piston cylinder (3-6-1), the upper part of the sealing piston cylinder (3-6-1) is fixedly connected with a clamping sleeve (3-6-2), the clamping sleeve (3-6-2) is slidably arranged in the sliding cavity (9-2), a plurality of sliding pressure heads (3-6-3) arranged in an annular shape are radially slidably connected in the clamping sleeve (3-6-2), a lower pull rod (5-2-2) is fixedly arranged on the lower sealing end (5-2), and the sliding pressure head (3-6-3) is clamped and matched with the lower pull rod (5-2-2); The outer wall of the sealing piston cylinder (3-6-1) is sealingly and slidably connected to the lower tooling sealing end cover (3-8); a clamping concave cylinder (3-6-4) is slidably connected inside the sealing piston cylinder (3-6-1); an extrusion slope (3-6-5) is provided on the inner wall of the upper port of the clamping concave cylinder (3-6-4); a docking slope (3-6-6) is provided at the lower end of the sliding pressure head (3-6-3); and the docking slope (3-6-6) is slidably matched with the extrusion slope (3-6-5); The bottom of the clamping concave cylinder (3-6-4) is fixedly connected with a lifting piston rod (3-6-7), the lifting piston rod (3-6-7) is sealingly and slidably connected in the sealing piston cylinder (3-6-1), and the lower end of the lifting piston rod (3-6-7) is fixedly connected to the output end of the clamping cylinder (3-6-9) through a second cylinder floating joint (3-6-8); The ejection device (3-7) comprises an ejection plate (3-7-1), the upper end surface of the ejection plate (3-7-1) is fixedly connected to the output end of the ejection cylinder (3-7-3), the ejection cylinder (3-7-3) is fixedly connected to the lower end surface of the lower fixed plate (9), and the upper end surface of the ejection plate (3-7-1) is fixedly connected to the sealing piston cylinder (3-6-1) via a vertical rod (3-7-2); The lower end surface of the ejector plate (3-7-1) is fixedly connected to the clamping cylinder (3-6-9), and a reserved hole for the output end of the clamping cylinder (3-6-9) to pass through is provided in the ejector plate (3-7-1), and the ejector plate (3-7-1) is movably arranged in a limiting frame (3-9), and the limiting frame (3-9) is fixedly connected to the lower end surface of the lower tooling sealing end cover (3-8).

10. The new bushing vacuum filling and assembly equipment according to claim 9 is characterized in that: A clamping cavity (3-6-10) is arranged at the center of the clamping sleeve (3-6-2), the clamping end of the sliding pressure head (3-6-3) is movably arranged in the clamping cavity (3-6-10), a clamping spring (3-6-11) is arranged on the side arm of the sliding pressure head (3-6-3), one end of the clamping spring (3-6-11) abuts against the side arm of the sliding pressure head (3-6-3), and the other end of the clamping spring (3-6-11) abuts against the clamping sleeve (3-6-2); The clamping sleeve cover (3-6-2) is provided with a sliding groove (3-6-12) matched with the side arm of the sliding pressure head (3-6-3); Anti-slip grooves (3-6-13) are arranged inside the clamping end of the sliding pressure head (3-6-3).

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