Hydraulic sealing machine for gas spring production

Abstract

The application discloses a hydraulic sealing machine for gas spring production and relates to the technical field of hydraulic sealing.The clamping mechanism is arranged in a vertically formed through hole, and the stamping mechanism is arranged above the through hole, so that the device can vertically fix the gas spring pre-assembly in the through hole, the distance between the cylinder port and the pressure head of different specifications and lengths is kept constant, the accurate and stable stamping and sealing operation of the gas spring is performed from top to bottom, the position and height of the pressure head do not need to be frequently adjusted, the stability of the hydraulic sealing is guaranteed, the production efficiency is improved, meanwhile, the swingable swing arm is rotatably arranged below the first roller, the first gear and the second gear are meshed and reversed, so that the cylinder can be secondarily clamped from the side surface after being subjected to the stamping force from the top, and the stability of the device in the process of the hydraulic sealing of the gas spring is guaranteed to a certain extent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic sealing, in particular to a hydraulic sealing machine for gas spring production. BACKGROUND

[0002] The gas spring is an industrial accessory that can realize functions such as support, buffering, braking, height adjustment and angle adjustment, and is widely used in many industries such as automobiles, aviation, medical devices and machinery manufacturing. In the production process of the gas spring, the bushing needs to be pressed into the port of the cylinder by stamping to realize the tight sealing operation of the gas spring. In the prior art, this operation is usually realized by a hydraulic sealing machine.

[0003] The hydraulic sealing device in the prior art needs to frequently adjust the moving height of the pressure head during the stamping sealing process of the gas spring with different specifications and lengths, so as to ensure that the bushing is pressed into the cylinder port. This frequent adjustment of the moving height of the pressure head makes it difficult to realize accurate and stable pressing control of the bushing in the gas spring. Due to the influence of the error of manual adjustment and the limitation of the structure and control mode of the equipment itself, it is difficult to ensure that the pressing force and position are just right every time, thereby affecting the quality stability of the gas spring sealing. In addition, the frequent adjustment of the moving range of the pressure head also makes the operation process complicated, which easily affects the overall production efficiency.

[0004] Therefore, a hydraulic sealing machine for gas spring production is proposed to solve some problems in the prior art. SUMMARY

[0005] The purpose of the present application is to solve the problem in the prior art that the gas spring is difficult to be stamped and sealed at the same position in the hydraulic sealing process due to the influence of the cylinder fixing mode, which leads to the frequent adjustment of the pressure head height and affects the accuracy of the hydraulic sealing and the production efficiency. A hydraulic sealing machine for gas spring production is proposed.

[0006] In order to solve the problems in the prior art, the present application adopts the following technical scheme:

[0007] The utility model provides a hydraulic sealing machine for gas spring production, including the base, the top of base is opened with through -hole, and is fixed with the electric heating unit of surrounding arrangement at through -hole, is fixed with the bearing plate in the base, and is fixed with the clamping mechanism in bearing plate top below through -hole, clamping mechanism includes a plurality of slide rods of sliding installation on bearing plate, a plurality of slide rods surround and distribute around through -hole, the one end of slide rod is fixed with the vertical setting of clamping frame close to through -hole, first gyro wheel is rotated in clamping frame, and swing arm is located below first gyro wheel, one end of first gyro wheel is fixed with first gear, the rotatory joint of swing arm is fixed with second gear meshed with first gear, first hydraulic push rod for pushing slide rod moves is fixed on bearing plate, the stamping mechanism is installed on the top of base, and the stamping mechanism includes the column of vertical setting in the right side of through -hole, the sliding block is slid in the column, and the crossbeam of horizontal setting is fixed on sliding block, and the end head bottom of crossbeam is fixed with the pressure head in the top of through -hole, the support of setting in the outside of column is fixed on the top of base, and the second hydraulic push rod of vertical setting is fixed on the top of support, and the telescopic end of second hydraulic push rod is connected with sliding block.

[0008] Preferably, a second gyro wheel is rotated in the clamping frame below the first gyro wheel, and the rotation axis of the second gyro wheel is coaxially arranged with the rotation joint of the swing arm, and the first gyro wheel and the second gyro wheel are commonly sleeved with a belt.

[0009] Preferably, the outer surface of the belt is provided as a concave circular arc structure, and a tension spring is fixed in the clamping frame for elastically pulling the swing arm.

[0010] Preferably, the column is rotatably installed between the base and the support, a first servo motor is fixed in the base for driving the column to rotate, and the telescopic end of the second hydraulic push rod is rotatably connected with the sliding block.

[0011] Preferably, the bottom of the bearing plate is rotatably provided with an internal gear ring coaxially arranged with the through hole, the bottom of the bearing plate is rotatably provided with a third gear meshed with the internal gear ring, the top of the bearing plate is rotatably provided with a fourth gear coaxially connected with the third gear, and the slide rod is provided with a rack meshed with the fourth gear.

[0012] Preferably, the top of the base is fixed with a support column vertically arranged on the left side of the through hole, and the first conveying mechanism is fixed on the support column, the first conveying mechanism comprises a first fixed disc fixedly connected with the support column, a first rotary disc coaxially arranged with the first fixed disc is rotatably arranged on the top of the first fixed disc, a plurality of first circular holes are arranged around the first fixed disc, a second servo motor for driving the first rotary disc to rotate is fixed on the support column, a first feeding groove matched with the first circular hole is arranged at the rear edge position of the first fixed disc, a first discharging groove matched with the first circular hole is arranged at the edge position of the first fixed disc, and the second conveying mechanism is arranged above the first conveying mechanism.

[0013] Preferably, the second conveying mechanism comprises a second fixed disc fixedly connected with the supporting column, and a second rotating disc coaxially arranged on the top of the second fixed disc, a plurality of second circular holes are arranged in the second rotating disc, the plurality of second circular holes are arranged above the plurality of first circular holes one by one, a third servo motor for driving the second rotating disc to rotate is fixed on the supporting column, and a second feeding groove matched with the second circular hole is arranged at the rear edge position of the second fixed disc.

[0014] Preferably, the first rotating disc and the second rotating disc rotate counterclockwise, and the second feeding groove, the first feeding groove, the second discharging groove and the first discharging groove are sequentially arranged in the counterclockwise rotation direction.

[0015] Preferably, a first rubber strip is arranged around the edge position of the first fixed disc, and a second rubber strip is arranged around the edge position of the second fixed disc.

[0016] Preferably, a first conveying belt is arranged longitudinally below the first feeding groove at the rear of the machine base, and a first electric ejector rod is arranged directly below the first feeding groove at the bottom of the front end of the first conveying belt, a second conveying belt is arranged longitudinally below the second feeding groove at the rear of the machine base, and a second electric ejector rod is arranged directly below the second feeding groove at the bottom of the front end of the second conveying belt, and a third conveying belt is arranged below the clamping mechanism in the machine base and extends to the outside of the machine base.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] 1、In the present application, the clamping mechanism is arranged in the vertically arranged through hole, and the stamping mechanism is arranged above the through hole, so that the device can vertically fix the pre-assembled component of the gas spring in the through hole, and ensure that the distance between the cylinder port and the pressure head of different specifications remains constant, and then the gas spring is precisely and stably stamped and sealed from top to bottom, without frequent adjustment of the position and height of the pressure head, which is beneficial to ensure the stability of the hydraulic sealing and improve the production efficiency, and at the same time, the swingable swing arm is rotatably installed below the first roller, and the first gear and the second gear are engaged and reversed, so that the cylinder can be adaptively clamped from the side after being subjected to the stamping force from above, which to a certain extent ensures the stability of the device during the hydraulic sealing process of the gas spring.

[0019] 2. In the present invention, by arranging the second roller at the bottom of the first roller, with the support of the first roller and the second roller, the contact area between the outer surface of the belt and the outer surface of the cylinder is greatly increased in the axial direction. At the same time, by arranging the outer surface of the belt to have an inwardly concave arc structure, the structural features of the outer surface of the belt are adapted to the arc-shaped structural features of the outer surface of the cylinder, which can effectively increase the radial contact area between the cylinder body and the outer surface of the belt during the clamping process. Under the mutual cooperation, the friction force on the cylinder body when being pre-clamped by the clamping mechanism is increased to a certain extent, which is conducive to ensuring the stability of the pre-clamping.

[0020] 3. In the present invention, through the meshing of the inner gear ring and the third gear, the coaxial connection of the third gear and the fourth gear, and the meshing of the fourth gear and the rack, the clamping mechanism in the device only needs to be driven by a single first hydraulic push rod to control the synchronous movement of the slide bars in multiple directions, thereby achieving the clamping operation of the pre-assembly in the through hole. This can effectively reduce the use of the first hydraulic push rod, which is conducive to reducing the manufacturing and use costs of the device, and further helps to reduce the production cost of the gas spring hydraulic sealing process;

[0021] 4. In the present invention, a first conveying mechanism is provided to carry out circumferential conveying of the cylinder, and a second conveying mechanism is provided to carry out circumferential conveying of the bushing. Under the cooperation of these two mechanisms, the bushing can be efficiently and stably pre-installed on the port of the cylinder with the piston rod inserted therein during the rotational conveying process, forming a pre-assembly that is convenient for hydraulic sealing. This replaces the operation of manually pre-assembling the bushing on the cylinder port in the prior art, which not only improves production efficiency but also avoids direct contact between workers and the cylinder, thereby improving the production safety of the device to a certain extent.

[0022] 5. In the present invention, a first conveyor belt and a second conveyor belt are provided to continuously convey the cylinder and the bushing respectively, and a first electric push rod and a second electric push rod adapted thereto are provided to push back and forth, so that the cylinder and the bushing are efficiently and stably delivered into the first conveying mechanism and the second conveying mechanism, which can effectively improve the loading efficiency during the operation of the device. At the same time, a third conveyor belt is provided to continuously guide the gas spring after sealing is completed, which can effectively improve the unloading efficiency of the device after production is completed. By cooperating with each other, the production efficiency of hydraulic sealing during the production of gas springs is improved to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 A perspective view of the present invention;

[0025] Figure 2 is a top view of the present application;

[0026] Figure 3 is a sectional view at A-A in the present application Figure 2

[0027] Figure 4 is an enlarged view at D in the present application Figure 3

[0028] Figure 5 is a sectional view at B-B in the present application Figure 2

[0029] Figure 6 is a sectional view at C-C in the present application Figure 2

[0030] Figure 7 is an isometric view of the clamping mechanism of the present application

[0031] Figure 8 is an isometric view of the punching mechanism of the present application

[0032] Figure 9 is an exploded view of the internal structure of the clamping frame of the present application

[0033] Figure 10 is an isometric view of the first and second conveying mechanisms of the present application

[0034] Figure 11 is an exploded view of the first conveying mechanism of the present application

[0035] Figure 12 is an exploded view of the second conveying mechanism of the present application

[0036] Reference numerals in the drawings:

[0037] 1. base; 101. through hole; 102. bearing plate; 103. support column;

[0038] 2. slide rod; 201. clamping frame; 202. first roller; 203. second roller; 204. belt; 205. swing arm; 206. first gear; 207. second gear; 208. tension spring; 209. first hydraulic push rod;

[0039] 3. column rod; 301. slide block; 302. cross beam; 303. pressure head; 304. support; 305. second hydraulic push rod; 306. first servo motor;

[0040] 4. inner tooth ring; 401. third gear; 402. fourth gear; 403. rack;

[0041] ​​​​5、first fixed disc; 501, first rotating disc; 502, first circular hole; 503, second servo motor; 504, first feeding groove; 505, first discharging groove; 506, first rubber strip;

[0042] 6、second fixed disc; 601, second rotating disc; 602, second circular hole; 603, third servo motor; 604, second feeding groove; 605, second discharging groove; 606, second rubber strip;

[0043] 7、first conveying belt; 701, first electric ejector rod; 702, second conveying belt; 703, second electric ejector rod; 704, third conveying belt. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments.

[0045] Embodiment: The embodiment provides a hydraulic sealing machine for gas spring production, referring to Figures 1-12 , specifically, including a base 1, a through hole 101 is formed in the top of the base 1, and an electric heating unit is fixed around the through hole 101, a bearing plate 102 is fixed in the base 1, and a clamping mechanism is fixed below the through hole 101 on the bearing plate 102, the clamping mechanism includes a plurality of slide rods 2 slidingly installed on the bearing plate 102, the plurality of slide rods 2 are distributed around the through hole 101, one end of the slide rod 2 close to the through hole 101 is fixed with a vertical clamping frame 201, a first roller 202 is rotatably arranged in the clamping frame 201, and a swing arm 205 is arranged below the first roller 202, one end of the first roller 202 is fixed with a first gear 206, the swing arm 205 is rotatably connected with a second gear 207 engaged with the first gear 206, a first hydraulic push rod 209 is fixed on the bearing plate 102 for pushing the slide rod 2 to move, a stamping mechanism is installed on the top of the base 1, and the stamping mechanism includes a column 3 vertically arranged on the right side of the through hole 101, a sliding block 301 is slidingly arranged in the column 3, a cross beam 302 is transversely arranged on the sliding block 301, and a pressure head 303 is fixed on the end of the cross beam 302 and located above the through hole 101, a bracket 304 is fixed on the outside of the column 3 on the top of the base 1, a second hydraulic push rod 305 is vertically arranged on the top of the bracket 304, and the telescopic end of the second hydraulic push rod 305 is connected with the sliding block 301.

[0046] When the device is in operation, the staff uses the device to punch the bushing to the cylinder port to achieve the sealing operation of the gas spring. During the implementation process, the piston rod is first inserted into the cylinder, and the bushing is pre-assembled above the cylinder port. Then the staff places the cylinder in the through hole 101 and clamps the cylinder through the clamping mechanism. During the clamping operation, the first hydraulic push rod 209 is powered on and started, and its telescopic end pushes the slide rod 2 toward the center of the through hole 101. After the slide rods 2 in multiple directions move synchronously toward the center of the through hole 101, they drive the first roller 202 installed in the clamping frame 201 to press the cylinder A stable pre-clamping operation is performed, and the port of the clamped cylinder body is at the corresponding position of the electric heating unit at the through hole 101. The electric heating unit is then powered on to heat the cylinder body port. With the help of thermal expansion and contraction effects, the cylinder body port is slightly expanded. Then the second hydraulic push rod 305 is powered on and its telescopic end pushes the slider 301 to move downward in the column rod 3, driving the crossbeam 302 to drive the pressure head 303 to move downward, so that the pressure head 303 presses the bushing above the cylinder body port from top to bottom, and the bushing is pressed tightly into the cylinder body port by stamping, completing the sealing operation of the gas spring port.

[0047] During the process of hydraulically pushing the stamping to seal, the cylinder in the clamping mechanism will be exerted with a vertical downward force to Figure 4 The direction in is for reference. When the cylinder body tends to move downward, it will drive the first roller 202 that is in contact with the outer surface of the cylinder body to maintain a clockwise rotation trend. Since the first roller 202 and the first gear 206 are coaxially fixedly connected, affected by the meshing reversal of the first gear 206 and the second gear 207, this will cause the swing arm 205 located below the clamping frame 201 to have a counterclockwise swing trend. During the stamping and sealing process, the clamping force is continuously applied to the outer end wall of the cylinder body from the side. With the cooperation of each other, the stability of the cylinder body clamped in the clamping mechanism and the stamped seal can be effectively improved. The clamping force applied to the cylinder body is adaptively adjusted during the stamping process, which can avoid excessive initial clamping force of the cylinder body causing scratches or dents on the cylinder body surface, and can also prevent the cylinder body from loosening during the stamping and sealing process.

[0048] During the operation of the device, by setting the clamping mechanism in the vertically opened through hole 101 and setting the stamping mechanism above the through hole 101, the device can vertically fix the pre-assembled assembly of the cylinder body, the piston column and the bushing in the through hole 101, and then be subjected to the stamping sealing operation from top to bottom. The bottom of the through hole 101 is provided with a large space height, which enables the device to adapt to the sealing operation of gas springs with different length sizes. Meanwhile, by rotatingly installing the swingable swing arm 205 below the first roller 202 and enabling the first gear 206 and the second gear 207 to reverse, the cylinder body can be adaptively clamped from the side after being subjected to the stamping force from above. This not only avoids damage to the cylinder body due to excessive clamping force, but also avoids loosening of the cylinder body due to insufficient clamping force, thereby ensuring the stability of the device during the hydraulic sealing process of the gas spring.

[0049] In the specific implementation process, as shown in Figure 4 and Figure 9 , the second roller 203 is rotatably arranged below the first roller 202 in the clamping frame 201, and the rotation axis of the second roller 203 is coaxially arranged with the rotation connection of the swing arm 205. The first roller 202 and the second roller 203 are jointly sleeved with the belt 204, the outer surface of the belt 204 is provided with a concave circular arc structure, and the clamping frame 201 is fixed with the tension spring 208 for elastically pulling the swing arm 205. During the operation of the device, when the clamping mechanism is used to clamp the cylinder body, the outer surface of the belt 204 sleeved with the first roller 202 and the second roller 203 arranged correspondingly above and below is tightly attached to the cylinder body, and the contact area between the outer surface of the belt 204 and the outer surface of the cylinder body is greatly increased in the axial direction by the support of the first roller 202 and the second roller 203.

[0050] Meanwhile, by setting the outer surface of the belt 204 as a concave circular arc structure, the structural features of the outer surface of the belt 204 are adapted to the arc structural features of the outer surface of the cylinder body, which can effectively increase the contact area between the cylinder body and the outer surface of the belt 204 in the radial direction during clamping, and cooperatively increase the friction force received by the cylinder body when clamped by the clamping mechanism to a certain extent, which is beneficial to ensuring the stability of pre-clamping. Moreover, by increasing the contact area in the axial and radial directions, the movement trend of the cylinder body is more closely related to the rotation trend of the first roller 202, which is beneficial to improving the pre-clamping and secondary clamping of the device by the clamping mechanism and maintaining the stability of the cylinder body of different specifications during the stamping sealing process.

[0051] The pull spring 208 installed between the swing arm 205 and the clamping frame 201 can provide elastic pulling force for the reset of the swing arm 205. When the clamping mechanism is reversed to loosen the clamping of the cylinder, the belt 204 is no longer in contact with the cylinder and is no longer affected by the downward tendency of the cylinder. Under the elastic pulling of the pull spring 208, the swing arm 205 is reset to the initial state, which can ensure the stability of the device when multiple air springs are hydraulically sealed in sequence.

[0052] In the specific implementation process, as shown in Figures 3-4 and Figure 7 , the bottom of the bearing plate 102 is provided with an inner tooth ring 4 coaxially arranged with the through hole 101, the bottom of the bearing plate 102 is provided with a third gear 401 engaged with the inner tooth ring 4, the top of the bearing plate 102 is provided with a fourth gear 402 coaxially connected with the third gear 401, and the slide rod 2 is provided with a rack 403 engaged with the fourth gear 402. During operation of the device, only one first hydraulic push rod 209 is provided, and the single first hydraulic push rod 209 is connected with any one slide rod 2. When the clamping mechanism is used to clamp the cylinder, the first hydraulic push rod 209 is powered on to start, control the slide rod 2 connected with the extension end to slide, and the slide rod 2 slides to drive the clamping frame 201 to move synchronously. During the sliding process of the slide rod 2, the third gear 401 is driven to rotate synchronously with the fourth gear 402 through the engagement of the rack 403 and the fourth gear 402, and then the inner tooth ring 4 is driven to rotate through the engagement of the third gear 401 and the inner tooth ring 4, driving the third gears 401 to rotate synchronously. Through the connection of the third gears 401 and the fourth gears 402 corresponding to the slide rods 2 at other positions, and the engagement of the fourth gears 402 and the racks 403, the slide rods 2 in different directions are controlled to move synchronously, realizing the consistency of the control of the slide rods 2 in different directions driving the corresponding clamping frames 201 to move and clamp, which is beneficial to ensure that the cylinder is stably and accurately clamped at the center position of the inner circle of the through hole 101 by the clamping mechanism. Through the engagement of the inner tooth ring 4 and the third gear 401, the coaxial connection of the third gear 401 and the fourth gear 402, and the engagement of the fourth gear 402 and the rack 403, the clamping mechanism in the device only needs to use a single first hydraulic push rod 209 for driving, which can effectively reduce the use amount of the first hydraulic push rod 209, and is beneficial to reduce the manufacturing and use cost of the device, and further reduce the production cost of the air spring hydraulic sealing process.

[0053] In the specific implementation process, as shown in Figure 3 and Figure 8As shown, the column rod 3 is rotatably installed between the base 1 and the support 304, the first servo motor 306 for driving the column rod 3 to rotate is fixed in the base 1, and the telescopic end of the second hydraulic push rod 305 is rotatably connected with the sliding block 301. During the operation of the device, before the cylinder body is lowered into the through hole 101, the first servo motor 306 is powered and started, which drives the column rod 3 to rotate by a certain angle. Through the rotation of the column rod 3, the position of the fixed end of the cross beam 302 is not directly above the through hole 101. In this state, the device can conveniently lower the longer size cylinder into the through hole 101. When the cylinder is lowered, it is firmly clamped by the clamping mechanism, and then the first servo motor 306 is powered and started in the reverse direction, which drives the column rod 3 to rotate in the reverse direction and drives the pressure head 303 to return to the position directly above the through hole 101. Through the rotation of the column rod 3, the position of the pressure head 303 can be flexibly adjusted according to the running state of the device, so as to avoid the blockage of the pressure head 303 when it is lowered into the through hole 101. The convenience and smoothness of the longer size cylinder lowered into the through hole 101 from top to bottom can be effectively improved.

[0054] In the specific implementation process, like Figure 1 、 Figure 3 and Figures 10-12As shown, the top of the base 1 is fixed with a support column 103 vertically arranged at the left side of the through hole 101, and the support column 103 is fixed with a first conveying mechanism, which comprises a first fixed disc 5 fixedly connected with the support column 103, and the top of the first fixed disc 5 is rotatably provided with a first rotating disc 501 coaxially arranged therewith, a plurality of first circular holes 502 are arranged in the first rotating disc 501, a second servo motor 503 is fixed on the support column 103 for driving the first rotating disc 501 to rotate, a first feeding groove 504 adapted to the first circular hole 502 is arranged at the rear edge of the first fixed disc 5, a first discharging groove 505 adapted to the first circular hole 502 is arranged at the edge of the first fixed disc 5 and located directly above the through hole 101, a second conveying mechanism is installed on the support column 103 and located directly above the first conveying mechanism, the second conveying mechanism comprises a second fixed disc 6 fixedly connected with the support column 103, and the top of the second fixed disc 6 is rotatably provided with a second rotating disc 601 coaxially arranged therewith, a plurality of second circular holes 602 are arranged in the second rotating disc 601, and the plurality of second circular holes 602 are arranged one by one above the plurality of first circular holes 502, a third servo motor 603 is fixed on the support column 103 for driving the second rotating disc 601 to rotate, a second feeding groove 604 adapted to the second circular hole 602 is arranged at the rear edge of the second fixed disc 6, and a second discharging groove 605 adapted to the second circular hole 602 is arranged at the front edge of the second fixed disc 6, the first rotating disc 501 and the second rotating disc 601 rotate counterclockwise, and the second feeding groove 604, the first feeding groove 504, the second discharging groove 605 and the first discharging groove 505 are arranged in sequence in the counterclockwise rotation direction.

[0055] During operation of the device, the first conveying mechanism is used to convey the cylinder with the piston column inserted therein around, and the second conveying mechanism is used to convey the bushing around. Through cooperation of the first conveying mechanism and the second conveying mechanism, the bushing can be pre-assembled at the port of the cylinder with the piston column inserted therein. During starting of the first conveying mechanism, the second servo motor 503 is powered to start, which can drive the first turntable 501 to rotate counterclockwise. The cylinder is vertically inserted into the first circular hole 502 from the first feeding groove 504, and can be driven to move counterclockwise around the support column 103 along with rotation of the first turntable 501. When the cylinder moves away from the position of the first feeding groove 504, the cylinder is stably clamped in the first circular hole 502 under extrusion of the edge position of the first fixed disc 5, and is then stably conveyed to rotate counterclockwise by the first turntable 501. Similarly, during starting of the second conveying mechanism, the third servo motor 603 is powered to start, which can drive the second turntable 601 to rotate counterclockwise. The bushing is vertically inserted into the second circular hole 602 from the second feeding groove 604, and can be driven to move counterclockwise around the support column 103 along with rotation of the second turntable 601. When the bushing moves away from the position of the second feeding groove 604, the bushing is stably clamped in the second circular hole 602 under extrusion of the edge position of the second fixed disc 6, and is then stably conveyed to rotate counterclockwise by the second turntable 601. The second servo motor 503 and the third servo motor 603 are started synchronously, which makes the first circular hole 502 and the second circular hole 602 corresponding above and below always keep a state of synchronous movement.

[0056] When the bushing is moved to the second feeding groove 605, the edge position of the second fixed disc 6 loses extrusion on the bushing due to the recess at the second feeding groove 605, which makes the bushing entering the second feeding groove 605 fall onto the cylinder below and be sleeved outside the piston column in the cylinder, so as to realize pre-assembly of the bushing to the port of the cylinder. In subsequent counterclockwise rotation of the first turntable 501, the pre-assembly of the cylinder, the piston column and the bushing is continuously conveyed around by the first turntable 501. When the pre-assembly moves to the first feeding groove 505, the edge position of the first fixed disc 5 loses extrusion on the cylinder due to the recess at the first feeding groove 505. Since the first feeding groove 505 is directly above the through hole 101, the pre-assembly entering the first feeding groove 505 falls into the through hole 101 below. After the pre-assembly falls into the through hole 101, the clamping mechanism is started to stably clamp the cylinder, in preparation for subsequent stamping and sealing operations.

[0057] The device can efficiently and stably pre-assemble the bushing at the port of the cylinder with the piston column inserted inside in the rotating conveying process through the cooperation of the first conveying mechanism and the second conveying mechanism, form a pre-assembly convenient for hydraulic sealing, replace the operation of pre-assembling the bushing at the port of the cylinder by manual operation in the prior art, can not only improve the production efficiency, but also avoid direct contact of the staff with the cylinder, and improve the production safety of the device to a certain extent.

[0058] In the specific implementation process, as shown in Figures 10-12 The edge position of the first fixed disc 5 is fixed with the first rubber strip 506 arranged around, and the edge position of the second fixed disc 6 is fixed with the second rubber strip 606 arranged around. During the operation of the device, by fixing the first rubber strip 506 around the edge position of the first fixed disc 5, when the first fixed disc 5 cooperates with the first circular hole 502 to extrude and clamp the cylinder, the first rubber strip 506 with elastic deformation ability can perform elastic buffering and improve the friction resistance of the contact position, which is beneficial to guarantee the stability of the cylinder when being clamped and conveyed around in the first circular hole 502. Similarly, by fixing the second rubber strip 606 around the edge position of the second fixed disc 6, when the second fixed disc 6 cooperates with the second circular hole 602 to extrude and clamp the cylinder, the second rubber strip 606 with elastic deformation ability can perform elastic buffering and improve the friction resistance of the contact position, which is beneficial to guarantee the stability of the bushing when being clamped and conveyed around in the second circular hole 602.

[0059] In the specific implementation process, as shown in Figures 1-2 and Figures 5-6 The rear of the machine base 1 is longitudinally provided with a first conveying belt 7 located below the first feeding groove 504, and the front end bottom of the first conveying belt 7 is provided with a first electric ejector rod 701 located directly below the first feeding groove 504. The rear of the machine base 1 is longitudinally provided with a second conveying belt 702 located below the second feeding groove 604, and the front end bottom of the second conveying belt 702 is provided with a second electric ejector rod 703 located directly below the second feeding groove 604. The machine base 1 is provided with a third conveying belt 704 located below the clamping mechanism, and the third conveying belt 704 extends to the outside of the machine base 1.

[0060] During the operation of the device, the vertically arranged first conveying belt 7 can convey the vertical air cylinder to the bottom of the first feeding groove 504, at this time, the piston column has been inserted into the air cylinder, then the first electric ejector rod 701 at the bottom of the air cylinder is used to lift the air cylinder upward, drive the air cylinder to be vertically inserted into the corresponding first circular hole 502 at the first feeding groove 504 from bottom to top, then the first conveying mechanism is used to convey the air cylinder, at the same time, the vertically arranged second conveying belt 702 can convey the bushing to the bottom of the second feeding groove 604, then the second electric ejector rod 703 at the bottom of the bushing is used to lift the bushing upward, drive the bushing to enter the corresponding second circular hole 602 at the second feeding groove 604 from bottom to top, then the second conveying mechanism is used to convey the bushing, by the continuous conveying of the first conveying belt 7 and the second conveying belt 702 and the reciprocating lifting of the first electric ejector rod 701 and the second electric ejector rod 703, the air cylinder and the bushing can be efficiently and stably inserted into the first conveying mechanism and the second conveying mechanism, after the hydraulic sealing of the gas spring, the downward falling gas spring is vertically inserted into the third conveying belt 704, then is conveyed and discharged by the third conveying belt 704, by the continuous automatic conveying, the production efficiency of the hydraulic sealing in the gas spring production process can be further improved.

[0061] Specifically, the working principle and operation method of the present application are as follows:

[0062] The cylinder with the piston column inside is continuously conveyed to the bottom of the first feeding groove 504 by the first conveying belt 7, and then the first electric ejector rod 701 is powered on and starts to send the cylinder into the corresponding first circular hole 502 from bottom to top. With the counterclockwise rotation of the first rotating disc 501, the surrounding conveying of the cylinder is realized. At the same time, the bushing is continuously conveyed to the bottom of the second feeding groove 604 by the second conveying belt 702, and then the second electric ejector rod 703 is powered on and starts to send the bushing into the corresponding second circular hole 602 from bottom to top. With the counterclockwise rotation of the second rotating disc 601, the surrounding conveying of the bushing is realized. When the bushing enters the second feeding groove 605, it will fall to the port of the lower cylinder to form a pre-assembly, and then continue to convey. When the pre-assembly moves to the first feeding groove 505, it will fall into the through hole 101 and be clamped by the clamping mechanism. The electric heating unit installed at the through hole 101 heats the port position of the cylinder. Then the first servo motor 306 is powered on to control the rotation of the column rod 3, and the pressing head 303 fixed at the end of the cross beam 302 moves to the top of the through hole 101. Then the second hydraulic push rod 305 is powered on to drive the pressing head 303 to move downward and press the bushing into the port of the cylinder, completing the sealing operation of the gas spring. During the sealing process, the first roller 202 is driven to rotate when the cylinder is forced to move downward, and the first gear 206 and the second gear 207 are engaged to change direction, driving the swing arm 205 to clamp the outer surface of the cylinder. During the sealing process, the cylinder is reinforced twice to ensure the stability of the hydraulic sealing during the production of the gas spring.

[0063] The above is only a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacements or changes within the technical scope disclosed by the present application according to the technical solutions and inventive concepts of the present application, which should be covered within the protection scope of the present application.

Claims

1. A hydraulic sealing machine for gas spring production, comprising a machine base (1), characterized in that: A through hole (101) is provided on the top of the machine base (1), a supporting plate (102) is fixed in the machine base (1), and a clamping mechanism located directly below the through hole (101) is fixed on the supporting plate (102), the clamping mechanism includes a plurality of slide bars (2) slidably mounted on the supporting plate (102), the plurality of slide bars (2) are distributed around the through hole (101), a clamping frame (201) is fixed on the slide bars (2), a first roller (202) is rotated in the clamping frame (201), and a swing arm (205) is located below the first roller (202), a first gear (206) is fixed at one end of the first roller (202), and a rotating connection of the swing arm (205) with the first gear (206) is fixed. ) is meshed with a second gear (207), a first hydraulic push rod (209) is fixed on the bearing plate (102), a stamping mechanism is installed on the top of the machine base (1), and the stamping mechanism includes a column (3) vertically arranged on the right side of the through hole (101), a slider (301) slides in the column (3), and a crossbeam (302) is fixed on the slider (301), a pressure head (303) located directly above the through hole (101) is fixed at the bottom of the end of the crossbeam (302), a bracket (304) arranged on the outside of the column (3) is fixed on the top of the machine base (1), and a second hydraulic push rod (305) is fixed on the top of the bracket (304), and the telescopic end of the second hydraulic push rod (305) is connected to the slider (301).

2. The hydraulic sealing machine for gas spring production according to claim 1, characterized in that: A second roller (203) located below the first roller (202) rotates in the clamping frame (201), and the rotation axis of the second roller (203) is coaxially arranged with the rotation connection of the swing arm (205). A belt (204) is provided on both the first roller (202) and the second roller (203).

3. The hydraulic sealing machine for gas spring production according to claim 2, characterized in that: The outer surface of the belt (204) is configured as an inwardly concave arc-shaped structure, and a tension spring (208) for elastically pulling the swing arm (205) is fixed in the clamping frame (201).

4. The hydraulic sealing machine for gas spring production according to claim 1, characterized in that: The column (3) is rotatably mounted between the machine base (1) and the bracket (304); a first servo motor (306) for driving the column (3) to rotate is fixed in the machine base (1); and the telescopic end of the second hydraulic push rod (305) is rotatably connected to the slider (301).

5. The hydraulic sealing machine for gas spring production according to claim 1, characterized in that: The bottom of the carrier plate (102) is provided with an inner gear ring (4) coaxially arranged with the through hole (101), the bottom of the carrier plate (102) is provided with a third gear (401) meshed with the inner gear ring (4), the top of the carrier plate (102) is provided with a fourth gear (402) coaxially connected with the third gear (401), and the slide bar (2) is provided with a rack (403) meshed with the fourth gear (402).

6. The hydraulic sealing machine for gas spring production according to claim 1, characterized in that: A support column (103) vertically arranged on the left side of the through hole (101) is fixed on the top of the machine base (1), and a first conveying mechanism is fixed on the support column (103), the first conveying mechanism includes a first fixed disk (5) fixedly connected to the support column (103), and a first turntable (501) coaxially arranged therewith is rotatable on the top of the first fixed disk (5), a plurality of first circular holes (502) distributed around the first turntable (501) are provided, a second servo motor (503) for driving the first turntable (501) to rotate is fixed on the support column (103), a first loading trough (504) adapted to the first circular hole (502) is provided at the rear edge of the first fixed disk (5), a first unloading trough (505) located directly above the through hole (101) is provided at the edge of the first fixed disk (5), and the first unloading trough (505) is adapted to the first circular hole (502), and a second conveying mechanism located directly above the first conveying mechanism is installed on the support column (103).

7. The hydraulic sealing machine for gas spring production according to claim 6, characterized in that: The second conveying mechanism includes a second fixed disk (6) fixedly connected to the support column (103), and a second turntable (601) coaxially arranged with the second fixed disk (6) is rotatable on the top of the second fixed disk (6), and a plurality of second circular holes (602) distributed around the second turntable (601) are provided, and the plurality of second circular holes (602) are arranged one-to-one above the plurality of first circular holes (502). A third servo motor (603) for driving the second turntable (601) to rotate is fixed on the support column (103), a second loading trough (604) adapted to the second circular hole (602) is provided at the rear edge of the second fixed disk (6), and a second unloading trough (605) adapted to the second circular hole (602) is provided at the front edge of the second fixed disk (6).

8. The hydraulic sealing machine for gas spring production according to claim 7, characterized in that: The first turntable (501) and the second turntable (601) rotate counterclockwise, and the second loading chute (604), the first loading chute (504), the second unloading chute (605) and the first unloading chute (505) are arranged in sequence in the counterclockwise rotation direction.

9. The hydraulic sealing machine for gas spring production according to claim 7, characterized in that: A first rubber strip (506) arranged in a surrounding manner is fixed to the edge of the first fixed plate (5), and a second rubber strip (606) arranged in a surrounding manner is fixed to the edge of the second fixed plate (6).

10. The hydraulic sealing machine for gas spring production according to claim 7, characterized in that: A first conveyor belt (7) located below the first feeding trough (504) is longitudinally arranged at the rear of the machine base (1), and a first electric push rod (701) located directly below the first feeding trough (504) is installed at the bottom of the front end of the first conveyor belt (7). A second conveyor belt (702) located below the second feeding trough (604) is longitudinally arranged at the rear of the machine base (1), and a second electric push rod (703) located directly below the second feeding trough (604) is installed at the bottom of the front end of the second conveyor belt (702). A third conveyor belt (704) located below the clamping mechanism is installed in the machine base (1), and the third conveyor belt (704) extends to the outside of the machine base (1).

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