Hydraulic sealing machine for gas spring production

Abstract

The invention discloses a hydraulic sealing machine for gas spring production, and relates to the technical field of hydraulic sealing. A clamping mechanism is arranged in a vertically formed through hole, and a stamping mechanism is arranged above the through hole, so that a gas spring pre-assembly can be vertically fixed in the through hole by the device; the distance between air cylinder ports of different specifications and lengths and the pressing head is kept constant, precise and stable stamping and sealing operation is conducted on the air spring from top to bottom, the position height of the pressing head does not need to be adjusted frequently, the stability of hydraulic sealing is guaranteed, the production efficiency is improved, and meanwhile the production efficiency is improved. The swing arm capable of swinging is rotationally mounted below the first roller, and by means of meshing reversing of the first gear and the second gear, after the cylinder body is subjected to stamping force from the upper portion, secondary clamping can be conducted on the cylinder body from the side face in a self-adaptive mode, and the stability of the device in the gas spring hydraulic sealing process is guaranteed to a certain degree.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic sealing, in particular to a hydraulic sealing machine for producing gas springs. Background Art

[0002] Gas springs are industrial accessories that can achieve functions such as support, cushioning, braking, height adjustment and angle adjustment. They are widely used in many industries such as automobiles, aviation, medical equipment, and machinery manufacturing. During the production process of gas springs, it is necessary to press the bushing into the port of the cylinder by stamping to achieve a tight sealing operation of the gas spring. In the existing technology, this operation is usually achieved by a hydraulic sealing machine.

[0003] When the hydraulic sealing device in the prior art is in operation, since the bottom of the gas spring is usually supported by a lifting device, it is necessary to frequently adjust the moving height of the pressure head during the stamping and sealing process of gas springs of different specifications and lengths to ensure that the sleeve is pressed into the cylinder port. This frequent adjustment of the moving height of the pressure head makes it difficult to achieve accurate and stable pressing control of the sleeves in different gas springs. Affected by the errors of manual adjustment and the limitations of the structure and control method of the equipment itself, it is difficult to ensure that the force and position of each press are just right, which will affect the quality stability of the gas spring sealing. In addition, frequent adjustment of the moving amplitude of the pressure head will also make the operation process cumbersome and complicated, which will easily affect the overall production efficiency.

[0004] Therefore, a hydraulic sealing machine for gas spring production is proposed to solve some problems existing in the above-mentioned prior art. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art in that during the hydraulic sealing process of gas springs, due to the influence of the cylinder fixing method, it is difficult to perform stamping and sealing operations on gas springs of different specifications and lengths at the same position, resulting in the need for frequent adjustment of the pressure head height, which affects the accuracy and production efficiency of the hydraulic sealing. A hydraulic sealing machine for gas spring production is proposed.

[0006] In order to solve the problems existing in the prior art, the present invention adopts the following technical solutions: A hydraulic sealing machine for gas spring production includes a machine base, a through hole is opened on the top of the machine base, and an electric heating unit arranged around the through hole is fixed, a bearing plate is fixed in the machine base, and a clamping mechanism located just below the through hole is fixed on the bearing plate, the clamping mechanism includes a plurality of slide bars slidably mounted on the bearing plate, the plurality of slide bars are distributed around the through hole, a vertically arranged clamping frame is fixed to one end of the slide bar close to the through hole, a first roller is rotated in the clamping frame, and a swing arm is located below the first roller, a first gear is fixed to one end of the first roller, and the swing arm is rotated in the clamping frame. A second gear meshing with the first gear is fixed at the rotating connection, a first hydraulic push rod for pushing the slide rod to move is fixed on the bearing plate, a stamping mechanism is installed on the top of the machine base, and the stamping mechanism includes a column rod vertically arranged on the right side of the through hole, a slider slides in the column rod, and a transverse beam is fixed on the slider, a pressure head located directly above the through hole is fixed at the bottom of the end of the beam, a bracket arranged on the outside of the column rod is fixed on the top of the machine base, and a second vertical hydraulic push rod is fixed on the top of the bracket, and the telescopic end of the second hydraulic push rod is connected to the slider.

[0007] Preferably, a second roller located below the first roller rotates in the clamping frame, and the rotation axis of the second roller is coaxially arranged with the rotation connection of the swing arm, and a belt is commonly provided on the first roller and the second roller.

[0008] Preferably, the outer surface of the belt is configured as an inwardly concave arc-shaped structure, and a tension spring for elastically pulling the swing arm is fixed in the clamping frame.

[0009] Preferably, the column is rotatably installed between the machine base and the bracket, a first servo motor for driving the column to rotate is fixed in the machine base, and the telescopic end of the second hydraulic push rod is rotatably connected to the slider.

[0010] Preferably, the bottom of the supporting plate rotates with an inner gear ring coaxially arranged with the through hole, the bottom of the supporting plate rotates with a third gear meshing with the inner gear ring, the top of the supporting plate rotates with a fourth gear coaxially connected with the third gear, and the sliding rod is equipped with a rack meshing with the fourth gear.

[0011] Preferably, a support column vertically arranged on the left side of the through hole is fixed on the top of the machine base, and a first conveying mechanism is fixed on the support column, the first conveying mechanism includes a first fixed disk fixedly connected to the support column, and a first turntable coaxially arranged therewith is rotated on the top of the first fixed disk, a plurality of first circular holes distributed around the first turntable are provided, a second servo motor for driving the first turntable to rotate is fixed on the support column, a first loading trough adapted to the first circular hole is provided at the rear edge position of the first fixed disk, a first unloading trough located directly above the through hole is provided at the edge position of the first fixed disk, and the first unloading trough is adapted to the first circular hole, and a second conveying mechanism located directly above the first conveying mechanism is installed on the support column.

[0012] Preferably, the second conveying mechanism includes a second fixed plate fixedly connected to the support column, and a second turntable coaxially arranged with the second fixed plate is rotated on the top of the second fixed plate, and a plurality of second circular holes distributed around the second turntable are provided in the second turntable, and the plurality of second circular holes are arranged one-to-one above the plurality of first circular holes, and a third servo motor for driving the second turntable to rotate is fixed on the support column, a second loading trough adapted to the second circular hole is provided at the rear edge position of the second fixed plate, and a second unloading trough adapted to the second circular hole is provided at the front edge position of the second fixed plate.

[0013] Preferably, the first turntable and the second turntable rotate counterclockwise, and the second loading trough, the first loading trough, the second unloading trough and the first unloading trough are arranged in sequence in the counterclockwise direction.

[0014] Preferably, a first rubber strip arranged in a surrounding manner is fixed to an edge position of the first fixed plate, and a second rubber strip arranged in a surrounding manner is fixed to an edge position of the second fixed plate.

[0015] Preferably, a first conveyor belt located below the first feeding chute is longitudinally arranged at the rear of the machine base, and a first electric push rod located directly below the first feeding chute is installed at the bottom front end of the first conveyor belt. A second conveyor belt located below the second feeding chute is longitudinally arranged at the rear of the machine base, and a second electric push rod located directly below the second feeding chute is installed at the bottom front end of the second conveyor belt. A third conveyor belt located below the clamping mechanism is installed in the machine base, and the third conveyor belt extends to the outside of the machine base.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by arranging the clamping mechanism in the vertically opened through-hole and arranging the stamping mechanism above the through-hole, the device can vertically fix the pre-assembly of the gas spring in the through-hole and ensure that the distance between the cylinder port of different specifications and lengths and the pressure head remains constant, and then the gas spring is accurately and stably stamped and sealed from top to bottom, without the need to frequently adjust the position height of the pressure head, which is beneficial to ensuring the stability of the hydraulic seal and improving production efficiency. At the same time, by rotatably installing the swingable swing arm below the first roller, with the help of the meshing reversing of the first gear and the second gear, the cylinder body can adaptively perform a secondary clamping on the cylinder body from the side after being subjected to the stamping force from above, which to a certain extent ensures the stability of the device in the process of hydraulic sealing of the gas spring; 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. 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; 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. 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

[0017] 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: Figure 1 A perspective view of the present invention; Figure 2 A top view of the present invention; Figure 3 For the present invention Figure 2 Cross-sectional view at AA in the middle; Figure 4 For the present invention Figure 3 Enlarged view of point D in the middle; Figure 5 For the present invention Figure 2 Cross-sectional view at the middle BB; Figure 6 For the present invention Figure 2 Cross-sectional view at CC; Figure 7 is a three-dimensional diagram of the clamping mechanism of the present invention; Figure 8 A three-dimensional diagram of the punching mechanism of the present invention; Figure 9 This is an exploded view of the internal structure of the clamping frame of the present invention; Figure 10 A perspective view of the first conveying mechanism and the second conveying mechanism of the present invention; Figure 11 This is an exploded view of the first conveying mechanism of the present invention; Figure 12 This is a disassembled view of the second conveying mechanism of the present invention.

[0018] Serial number in the picture: 1. Machine base; 101. Through hole; 102. Loading plate; 103. Support column; 2. Sliding 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; 3. Column; 301. Slider; 302. Crossbeam; 303. Press head; 304. Bracket; 305. Second hydraulic push rod; 306. First servo motor; 4. Internal gear ring; 401. Third gear; 402. Fourth gear; 403. Rack; 5. First fixed plate; 501. First rotating plate; 502. First circular hole; 503. Second servo motor; 504. First loading chute; 505. First unloading chute; 506. First rubber strip; 6. Second fixed plate; 601. Second rotating plate; 602. Second circular hole; 603. Third servo motor; 604. Second loading chute; 605. Second unloading chute; 606. Second rubber strip; 7. First conveyor belt; 701. First electric push rod; 702. Second conveyor belt; 703. Second electric push rod; 704. Third conveyor belt. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Example: This example provides a hydraulic sealing machine for gas spring production, see Figures 1-12 Specifically, it includes a machine base 1, a through hole 101 is opened on the top of the machine base 1, and an electric heating unit arranged around the through hole 101 is fixed, a carrying plate 102 is fixed in the machine base 1, and a clamping mechanism located directly below the through hole 101 is fixed on the carrying plate 102, and the clamping mechanism includes a plurality of slide bars 2 slidably mounted on the carrying plate 102, and the plurality of slide bars 2 are distributed around the through hole 101, and a vertically arranged clamping frame 201 is fixed at one end of the slide bar 2 close to the through hole 101, 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 to one end of the first roller 202, and a rotation connection of the swing arm 205 is provided. A second gear 207 meshing with the first gear 206 is fixed thereto, a first hydraulic push rod 209 for pushing the slide rod 2 to move 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 transversely arranged crossbeam 302 is fixed on the slider 301, and a pressure head 303 located directly above the through hole 101 is fixed to the bottom of the end of the crossbeam 302, a bracket 304 arranged on the outside of the column 3 is fixed to the top of the machine base 1, and a vertically arranged second hydraulic push rod 305 is fixed to the top of the bracket 304, and the telescopic end of the second hydraulic push rod 305 is connected to the slider 301.

[0021] 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.

[0022] 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.

[0023] During the operation of the device, by arranging the clamping mechanism in the vertically opened through hole 101 and arranging the stamping mechanism above the through hole 101, the device can vertically fix the pre-assembly of the cylinder body, piston rod and bushing in the through hole 101, and then perform a stamping and sealing operation from top to bottom. The bottom of the through hole 101 is provided with a large spatial height, which enables the device to adapt to the sealing operation of gas springs of different lengths. At the same time, by rotatably installing the swingable swing arm 205 below the first roller 202, with the help of the meshing reversing of the first gear 206 and the second gear 207, the cylinder body can be adaptively clamped from the side for a second time after being subjected to the stamping force from above, which can not only prevent the cylinder body from being damaged by excessive clamping force, but also prevent the cylinder body from being loosened due to insufficient clamping force, thereby ensuring the stability of the device in the process of hydraulic sealing of gas springs to a certain extent.

[0024] In the specific implementation process, Figure 4 and Figure 9 As shown, a second roller 203 located below the first roller 202 rotates in the clamping frame 201, and the rotating axis of the second roller 203 is coaxially arranged with the rotating connection of the swing arm 205. A belt 204 is commonly sleeved on the first roller 202 and the second roller 203. The outer surface of the belt 204 is arranged to be an inwardly concave arc structure. A tension spring 208 for elastically pulling the swing arm 205 is fixed in the clamping frame 201. 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 on the outside of the first roller 202 and the second roller 203 correspondingly arranged above and below is tightly fitted with the cylinder body. With the support of the first roller 202 and the second roller 203, 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.

[0025] At the same time, by setting the outer surface of the belt 204 to an inwardly concave arc structure, the structural features of the outer surface of the belt 204 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 204 during the clamping process. Under 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 beneficial to ensuring the stability of the pre-clamping. Moreover, by increasing the axial and radial contact areas, 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 through the clamping mechanism, and achieving stability in keeping the position of cylinder bodies of different specifications stable during the stamping and sealing process.

[0026] The tension spring 208 installed between the swing arm 205 and the clamping frame 201 can provide elastic tension for the reset of the swing arm 205. When the clamping mechanism moves in the reverse direction to release the clamping of the cylinder body after the sealing is completed, the belt 204 is no longer in contact with the cylinder body and is no longer affected by the downward trend of the cylinder body. Under the elastic pull of the tension spring 208, the swing arm 205 is reset to its initial state, which can ensure the stability of the device when performing multiple gas spring hydraulic seals in sequence.

[0027] In the specific implementation process, Figure 3-Figure 4 and Figure 7 1 and 2. As shown in FIG, the bottom of the supporting plate 102 rotates with an inner gear ring 4 coaxially arranged with the through hole 101, the bottom of the supporting plate 102 rotates with a third gear 401 meshing with the inner gear ring 4, and the top of the supporting plate 102 rotates with a fourth gear 402 coaxially connected to the third gear 401, and the slide bar 2 is equipped with a rack 403 meshing with the fourth gear 402. During the operation of the device, only one first hydraulic push rod 209 is provided, and a single first hydraulic push rod 209 is connected to any slide bar 2. When the clamping mechanism is used to clamp the cylinder body, the first hydraulic push rod 209 is powered on and started to control the slide bar 2 connected to its telescopic end to slide. During the sliding process of the slide bar 2, it will drive the clamping frame 201 to move synchronously, and during the sliding process of the slide bar 2, the meshing of the rack 403 and the fourth gear 402 drives the third gear 401 to rotate synchronously with the fourth gear 402, and then the meshing of the third gear 401 with the inner gear ring 4 makes The inner gear ring 4 is driven to rotate, driving many third gears 401 to rotate synchronously. Through the connection between the third gear 401 and the fourth gear 402 corresponding to the slide rod 2 at other positions, and the meshing of the fourth gear 402 and the rack 403, the slide rods 2 in different directions are controlled to move synchronously, so as to achieve the control consistency when the slide rods 2 in different directions drive the corresponding clamping frame 201 to move and clamp, which is beneficial to ensure that the cylinder body is stably and accurately clamped at the inner center position of the through hole 101 by the clamping mechanism. In addition, through the meshing of the inner gear ring 4 and the third gear 401, the coaxial connection of the third gear 401 and the fourth gear 402, and the meshing of the fourth gear 402 and the rack 403, the clamping mechanism in the device only needs to be driven by a single first hydraulic push rod 209, which can effectively reduce the use of the first hydraulic push rod 209, which is beneficial to reducing the manufacturing and use costs of the device, and further beneficial to reducing the production cost of the gas spring hydraulic sealing processing.

[0028] In the specific implementation process, Figure 3 and Figure 8As shown, the column 3 is rotatably installed 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. The telescopic end of the second hydraulic push rod 305 is rotatably connected to the slider 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 on and started, which will drive the column 3 to rotate a certain angle. Through the rotation of the column 3, the pressure head 303 at the end of the beam 302 is not directly above the through hole 101. In this state, it is convenient for the device to move longer sizes The cylinder is lowered into the through hole 101. When the lowering operation of the cylinder is completed, it will be firmly clamped by the clamping mechanism, and then the first servo motor 306 is powered on and started in reverse, driving the column rod 3 to rotate in the opposite direction, driving 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 operating status of the device, avoiding obstruction when lowering the pressure head 303 into the through hole 101, which can effectively improve the convenience and smoothness of lowering the longer-sized cylinder from top to bottom into the through hole 101.

[0029] In the specific implementation process, Figure 1 、 Figure 3 and Figure 10-12As shown, 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, and the first conveying mechanism includes a first fixed plate 5 fixedly connected to the support column 103, and a first turntable 501 coaxially arranged therewith is rotatably provided on the top of the first fixed plate 5, and a plurality of first circular holes 502 distributed around the first turntable 501 are provided, and 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 plate 5, a first unloading trough 505 located directly above the through hole 101 is provided at the edge of the first fixed plate 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. The second conveying mechanism includes a second fixed plate 6 fixedly connected to the support column 103, and a second turntable 601 coaxially arranged therewith is rotated on the top of the second fixed plate 6, and a plurality of second circular holes 602 distributed around it are provided in the second turntable 601, and the plurality of second circular holes 602 are arranged one-to-one above the plurality of first circular holes 502, and 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 position of the second fixed plate 6, and a second unloading trough 605 adapted to the second circular hole 602 is provided at the front edge position of the second fixed plate 6, the first turntable 501 and the second turntable 601 rotate counterclockwise, and the second loading trough 604, the first loading trough 504, the second unloading trough 605 and the first unloading trough 505 are arranged in sequence in a counterclockwise rotation direction.

[0030] During the operation of the device, the first conveying mechanism is used to convey the cylinder with the piston column inserted inside in a circular manner, and the second conveying mechanism is used to convey the bushing in a circular manner. Through the 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 inside. During the startup of the first conveying mechanism, the second servo motor 503 is powered on and started, which can drive the first turntable 501 to rotate counterclockwise, and the cylinder is vertically inserted into the first circular hole 502 from the first loading trough 504. As the first turntable 501 rotates, the cylinder can be driven to move counterclockwise around the support column 103. When the cylinder leaves the position of the first loading trough 504 during the movement, it will be stably clamped in the first circular hole 502 under the squeezing of the edge position of the first fixed plate 5, and then be moved by the first turntable 501 drives the counterclockwise rotation and conveying stably. Similarly, during the startup of the second conveying mechanism, the third servo motor 603 is powered on and started, which can drive the second turntable 601 to rotate counterclockwise, and the bushing is vertically inserted into the second circular hole 602 from the second loading trough 604. As the second turntable 601 rotates, the bushing can be driven to move counterclockwise around the support column 103. When the bushing leaves the position of the second loading trough 604 during the movement, the bushing will be stably clamped in the second circular hole 602 under the squeezing of the edge position of the second fixed plate 6, and then driven by the second turntable 601 to stably rotate counterclockwise and convey. The second servo motor 503 and the third servo motor 603 are started synchronously, which makes the upper and lower corresponding first circular holes 502 and second circular holes 602 always maintain a state of synchronous movement.

[0031] When the bushing is moved to the second feeding trough 605, the edge of the second fixed plate 6 loses the squeeze on the bushing due to the depression of the second feeding trough 605, so that the bushing entering the second feeding trough 605 falls onto the cylinder below and is set on the outside of the piston rod in the cylinder, realizing the operation of pre-installing the bushing to the cylinder port. Subsequently, during the counterclockwise rotation of the first turntable 501, the pre-assembly composed of the cylinder, piston rod and bushing is continued to be installed by the first turntable 501. Circumferential conveying: when the pre-assembly moves to the first feeding chute 505, it is affected by the depression at the first feeding chute 505, causing the edge of the first fixed plate 5 to lose its squeeze on the cylinder. Since the first feeding chute 505 is directly above the through hole 101, the pre-assembly entering the first feeding chute 505 will fall into the through hole 101 below. After the pre-assembly falls into the through hole 101, the clamping mechanism is activated to stably clamp the cylinder, preparing for subsequent stamping and sealing operations.

[0032] Through the cooperation of the first conveying mechanism and the second conveying mechanism, the device can efficiently and stably pre-install the bushing at the port of the cylinder with the piston rod inserted inside during the rotational conveying process, forming a pre-assembly that is convenient for hydraulic sealing. It replaces the operation of manually pre-assembling the bushing at the cylinder port in the existing technology, 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.

[0033] In the specific implementation process, Figure 10-12 As shown, a first rubber strip 506 is fixed to the edge of the first fixed plate 5, and a second rubber strip 606 is fixed to the edge of the second fixed plate 6. During the operation of the device, the first rubber strip 506 is fixed to the edge of the first fixed plate 5. When the first fixed plate 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 increase the friction resistance at the contact position, which is beneficial to ensuring the stability of the cylinder when it is clamped in the first circular hole 502 and transported in a circular manner. Similarly, the second rubber strip 606 is fixed to the edge of the second fixed plate 6. When the second fixed plate 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 increase the friction resistance at the contact position, which is beneficial to ensuring the stability of the bushing when it is clamped in the second circular hole 602 and transported in a circular manner.

[0034] In the specific implementation process, Figure 1-Figure 2 and Figure 5-Figure 6 As shown, a first conveyor belt 7 located below the first loading chute 504 is longitudinally arranged at the rear of the machine base 1, and a first electric push rod 701 located directly below the first loading chute 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 loading chute 604 is longitudinally arranged at the rear of the machine base 1, and a second electric push rod 703 located directly below the second loading chute 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.

[0035] During the operation of the device, the upright cylinder can be transported to the bottom of the first feeding trough 504 by the longitudinally arranged first conveyor belt 7. At this time, the piston rod has been inserted into the cylinder. Subsequently, the cylinder is pushed upward by the first electric push rod 701 at the bottom of the cylinder, and the cylinder is driven to be vertically inserted into the first circular hole 502 corresponding to the first feeding trough 504 from bottom to top. Then, the cylinder is transported in a circular manner by the first conveying mechanism. Synchronously, the bushing can be transported to the bottom of the second feeding trough 604 by the longitudinally arranged second conveyor belt 702. Subsequently, the bushing is pushed upward by the second electric push rod 703 at the bottom of the bushing, and the bushing is driven to The sleeve enters the second circular hole 602 corresponding to the second feeding trough 604 from bottom to top, and then the sleeve is transported in a circular manner through the second conveying mechanism. With the help of the continuous transportation of the first conveyor belt 7 and the second conveyor belt 702, and the reciprocating pushing of the first electric push rod 701 and the second electric push rod 703, the cylinder and the sleeve can be ensured to enter the first conveying mechanism and the second conveying mechanism efficiently and stably. After the hydraulic sealing of the gas spring, the gas spring that falls downward is vertically inserted into the third conveyor belt 704, and then transported out by the third conveyor belt 704. Through continuous and automated transportation, the production efficiency of hydraulic sealing in the gas spring production process can be further improved.

[0036] Specifically, the working principle and operation method of the present invention are as follows: The cylinder with the piston rod inside is continuously conveyed to the bottom of the first loading chute 504 through the first conveyor belt 7, and then the first electric push rod 701 is powered on and started, and the cylinder is sent from bottom to top into the corresponding first circular hole 502, accompanied by the counterclockwise rotation of the first turntable 501, to achieve circular conveying of the cylinder. Synchronously, the bushing is continuously conveyed to the bottom of the second loading chute 604 through the second conveyor belt 702, and then the second electric push rod 703 is powered on and started, and the bushing is sent from bottom to top into the corresponding second circular hole 602, accompanied by the counterclockwise rotation of the second turntable 601, to achieve circular conveying of the bushing. When the bushing enters the second discharge chute 605, it will fall to the port of the cylinder below to form a pre-assembly, and then continue to be conveyed. When the pre-assembly moves to the first discharge chute 505, it will fall into the through hole 101 and be clamped The holding mechanism holds the cylinder stably, and 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 and started, and the control column 3 is rotated to move the pressure head 303 fixed at the end position of the beam 302 to the top of the through hole 101. Then the second hydraulic push rod 305 is powered on and started, driving the pressure head 303 to move downward, pressing the bushing into the port of the cylinder, and completing the sealing operation of the gas spring. During the stamping and sealing process, since the belt 204 is in close contact with the cylinder, when the cylinder is forced to move downward, the first roller 202 is driven to rotate, and the meshing reversal of the first gear 206 and the second gear 207 drives the swing arm 205 to remain clamped to the outer surface of the cylinder. During the stamping and sealing process, the secondary reinforcement of the cylinder is achieved to ensure the stability of the hydraulic sealing during the production process of the gas spring.

[0037] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

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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