Double-station nitrogen spring clamp spring mounting equipment

Abstract

The utility model discloses double-station nitrogen spring clamp spring installation equipment which comprises a rack. A portal frame is arranged on the upper surface of the machine frame, symmetrically-distributed air cylinders are arranged at the upper end in the portal frame, two electromagnetic valves are arranged on the upper side wall of the portal frame, air holes of the electromagnetic valves are connected with the transversely-adjacent air cylinders through air pipes, connecting sleeves are arranged at the telescopic ends of the air cylinders, and upper dies are movably inserted into the lower ends of the connecting sleeves. Snap spring grooves are formed in the lower ends of the outer arc surfaces of the upper dies; two lower dies are placed on the upper surface of the rack; the double-station nitrogen spring clamp spring installation equipment further comprises control switches, the number of the control switches is two, the control switches are both arranged on the upper surface of the rack, the input end of the electromagnetic valve is electrically connected with the output ends of the control switches, and the input ends of the control switches are electrically connected with an external power source. Double-station alternate installation is achieved, the installation efficiency is high, and use convenience is good.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen spring processing, in particular to a double-station nitrogen spring retaining ring installation device. Background Art

[0002] A nitrogen spring is a new type of elastic component that uses high-pressure nitrogen as the working medium. It has the characteristics of small size, large elastic force, long stroke, stable operation, precise manufacturing, long service life, flat elastic curve, and no need for pretightening. A nitrogen spring generally consists of a cylinder body, a piston rod, a middle sleeve assembly, and a retaining spring. In the process of assembling a nitrogen spring, the middle sleeve assembly and the piston rod are assembled separately and placed in the cylinder body. The middle sleeve assembly is supported by a sleeve and the sleeve is knocked to allow the middle sleeve assembly to enter the cylinder body and leave a retaining spring installation position. The retaining spring is manually pried into the retaining spring position with a screwdriver. One side of the retaining spring enters the cylinder body first and then the other side is pried into the cylinder body. The surface of the cylinder body will be scratched in the process. Therefore, the installation process is likely to cause damage to the nitrogen spring parts, and the installation efficiency is low. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a double-station nitrogen spring retaining ring installation device, in which the retaining ring is installed by applying force through cylinder extrusion, and the double stations are installed in turn, with high installation efficiency and good convenience of use, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-station nitrogen spring circlip installation device, comprising a frame;

[0005] Frame: A gantry is provided on its upper surface, and symmetrically distributed cylinders are provided at the upper end of the gantry. Two solenoid valves are provided on the upper side wall of the gantry. The air holes of the solenoid valves are connected to the laterally adjacent cylinders through air pipes. The telescopic ends of the cylinders are provided with connecting sleeves, and the lower ends of the connecting sleeves are movably connected with upper molds. The lower ends of the outer arc surfaces of the upper molds are provided with retaining ring grooves. Two lower molds are placed on the upper surface of the frame;

[0006] Wherein: it also includes a control switch, there are two control switches, both of which are arranged on the upper surface of the frame, the input end of the solenoid valve is electrically connected to the output end of the control switch, and the input end of the control switch is electrically connected to an external power supply. The retaining ring is installed by applying force through cylinder extrusion, which can avoid damage to the nitrogen spring parts due to uneven force due to knocking, and improve the production quality of the nitrogen spring. The retaining ring and the middle sleeve can be pressed synchronously, and the double stations are processed in turn, which improves the production efficiency of the nitrogen spring. At the same time, the upper and lower molds are simple to replace, the positioning assembly is convenient to adjust, which facilitates the assembly of nitrogen springs of different models and is convenient to use.

[0007] Furthermore, pins are movably inserted into the jacks on the upper end of the outer arc surface of the connecting sleeve, and the pins pass through the through holes on the upper end of the upper mold, so as to facilitate the positioning of the upper mold.

[0008] Furthermore, a positioning ring is provided on the upper surface of the frame, and the lower molds are respectively located inside the positioning rings, which can prevent the lower molds from rolling down when not in use.

[0009] Furthermore, two support seats are provided on the rear side of the upper surface of the frame, and circular nuts are installed in the middle of the support seats. Screws are threadedly connected to the middle of the circular nuts, and both ends of the screws pass through the outer surface of the support seats. V-shaped seats are provided at the front ends of the screws, and the V-shaped seats are slidably connected to the upper surface of the frame to facilitate the positioning of the nitrogen spring cylinder.

[0010] Furthermore, the rear ends of the V-shaped seats are provided with symmetrically distributed sliding columns, and the sliding columns are slidably connected to the longitudinally corresponding support seats to provide guidance for the V-shaped seats.

[0011] Furthermore, the outer arc surface of the circular nut is provided with evenly distributed grooves to increase the roughness of the surface of the circular nut and facilitate the movement of the circular nut.

[0012] Furthermore, a spring sheet is provided at the upper end of the support seat, and a positioning column is provided at one end of the spring sheet close to the circular nut. The positioning columns are movably engaged with the laterally adjacent grooves to facilitate the locking of the circular nut.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the double-station nitrogen spring retaining ring installation device has the following advantages:

[0014] 1. Adjust the control switch. The control switch controls the solenoid valve to work. The solenoid valve controls the external compressed air to enter the interior of the cylinder. The telescopic end of the cylinder extends out to drive the upper die to move downward by driving the connecting sleeve. The lower end of the upper die gradually contacts the middle sleeve below, and the upper side wall of the retaining ring groove contacts the retaining ring. The upper die squeezes the middle sleeve and the retaining ring into the interior of the cylinder body. After the upper die and the lower die are fitted, the retaining ring and the middle sleeve are installed. At the same time, during the work, the operator can place the cylinder body on both sides for processing in turn, and install the retaining ring by applying force through cylinder extrusion, which can avoid damage to the nitrogen spring parts due to uneven force due to knocking, and improve the production quality of the nitrogen spring. The retaining ring and the middle sleeve can be pressed synchronously, and the double-station processing is carried out in turn, which improves the production efficiency of the nitrogen spring.

[0015] 2. When assembling nitrogen springs of different types, different upper and lower dies can be replaced for assembly. When replacing the upper die, the pin can be pulled out, the upper die can be removed from the lower end of the connecting sleeve, and then the new upper die can be inserted into the inside of the connecting sleeve, and then the pin can be reinserted to position the upper die, and then the circular nut can be rotated. The circular nut drives the screw to move longitudinally, and the screw drives the V-shaped seat to move longitudinally. The position of the V-shaped seat can be adjusted to facilitate the positioning of cylinders of different diameters. The upper and lower dies are easy to replace, and the positioning assembly is easy to adjust, which facilitates the assembly of nitrogen springs of different types and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is an enlarged structural diagram of the utility model at A;

[0018] Figure 3 This is an enlarged structural diagram of the utility model at B;

[0019] Figure 4 It is a schematic cross-sectional structure diagram of the upper die and the lower die of the utility model.

[0020] In the figure: 1 frame, 2 gantry, 3 cylinder, 4 solenoid valve, 5 upper die, 6 retaining ring groove, 7 lower die, 8 positioning ring, 9 control switch, 10 support seat, 11 round nut, 12 screw, 13 V-shaped seat, 14 sliding column, 15 groove, 16 spring sheet, 17 positioning column, 18 connecting sleeve, 19 pin shaft. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 , This embodiment provides a technical solution: a double-station nitrogen spring retainer installation device, including a frame 1;

[0023] Frame 1: A gantry 2 is provided on its upper surface, and frame 1 provides an installation position for the upper parts. A symmetrically distributed cylinder 3 is provided at the upper end of the gantry 2, and gantry 2 provides an installation position for the cylinder 3. Two solenoid valves 4 are provided on the upper side wall of the gantry 2. The air holes of the solenoid valves 4 are connected to the laterally adjacent cylinders 3 through air pipes, and the solenoid valves 4 are connected to an external compressed air source. The telescopic ends of the cylinders 3 are provided with connecting sleeves 18, and the lower ends of the connecting sleeves 18 are movably plugged with upper molds 5. The lower ends of the outer arc surfaces of the upper molds 5 are provided with retaining ring grooves 6. Two lower molds 7 are placed on the upper surface of the frame 1, and a piston rod is placed inside the cylinder body of the nitrogen spring, and then the lower mold 7 is put on the upper end of the cylinder body, and a middle sleeve is placed inside the lower mold 7, and the retaining ring is placed on the middle sleeve. After placement, the cylinder body of the nitrogen spring is placed on the upper surface of the frame 1, and the solenoid valve 4 works, and the solenoid valve 4 controls the external compressed air to enter the interior of the cylinder 3. The telescopic end of the cylinder 3 extends out to drive the connecting sleeve 18 to drive the upper mold 5 to move downward, and the lower end of the upper mold 5 gradually contacts with the middle sleeve below, and the upper side wall of the retaining ring groove 6 contacts with the retaining ring, and the upper mold 5 squeezes the middle sleeve and the retaining ring into the interior of the cylinder body. After the upper mold 5 and the lower mold 7 are fitted together, the installation of the retaining ring and the middle sleeve is completed. The jacks on the upper end of the outer arc surface of the connecting sleeve 18 are movably plugged with pins 19, and the pins 19 all penetrate the through holes at the upper end of the upper mold 5. When the model of the nitrogen spring changes, different upper molds 5 and lower molds 7 can be replaced for assembly. After replacing the upper mold 5, the pins 19 can be pulled out, the upper mold 5 can be removed from the lower end of the connecting sleeve 18, and then the new upper mold 5 can be inserted into the interior of the connecting sleeve 18, and then the pins 19 are re-inserted to position the upper mold 5. A positioning ring 8 is provided on the upper surface of the frame 1, and the lower mold 7 is respectively located inside the positioning ring 8. The positioning ring 8 facilitates the positioning of the lower mold 7 when it is not in use to prevent the lower mold 7 from rolling down.

[0024] Among them: two support seats 10 are provided on the rear side of the upper surface of the frame 1, and circular nuts 11 are installed in the middle of the support seats 10. The middle of the circular nuts 11 are threadedly connected with screws 12. Both ends of the screws 12 penetrate the outer surface of the support seats 10. The front ends of the screws 12 are provided with V-shaped seats 13. The V-shaped seats 13 are slidably connected with the upper surface of the frame 1, so that the outer surface of the cylinder body is aligned with the inner side of the V-shaped seat 13 to ensure that the central axis of the cylinder body coincides with the central axis of the upper mold 5. The rear end of the V-shaped seat 13 is provided with symmetrically distributed sliding columns 14, and the sliding columns 14 are slidably connected with the longitudinally corresponding support seats 10. The sliding connection between the sliding columns 14 and the support seats 10 provides a moving guide for the V-shaped seat 13. The outer arc surface of the circular nut 11 is provided with evenly distributed grooves 15. A spring sheet 16 is provided at the upper end of the support seat 10, and a positioning column 17 is provided at one end of the spring sheet 16 close to the circular nut 11. The positioning column 17 is movably engaged with the laterally adjacent grooves 15, and the circular nut 11 is rotated, and the circular nut 11 drives the screw 12 to move longitudinally, and the screw 12 drives the V-shaped seat 13 to move longitudinally, so that the position of the V-shaped seat 13 can be adjusted to facilitate the positioning of cylinders with different diameters. In the process of rotating the circular nut 11, the wall of the groove 15 moves the positioning column 17, and the positioning column 17 moves out of the groove 15 and drives the spring sheet 16 to undergo elastic deformation. After the circular nut 11 stops rotating, the positioning column 17 is movably engaged with the groove 15 to increase the resistance when the circular nut 11 is rotated, so as to facilitate the locking of the position of the V-shaped seat 13.

[0025] Among them: it also includes a control switch 9, there are two control switches 9, both of which are arranged on the upper surface of the frame 1, the input end of the solenoid valve 4 is electrically connected to the output end of the control switch 9, and the input end of the control switch 9 is electrically connected to an external power supply, and the control switch 9 facilitates the control of the solenoid valve 4.

[0026] The working principle of a double-station nitrogen spring retaining ring installation device provided by the utility model is as follows: before use, the solenoid valve 4 is connected to the external compressed air source, the piston rod is placed inside the cylinder of the nitrogen spring, and then the lower mold 7 is sleeved to the upper end of the cylinder, and the middle sleeve is placed inside the lower mold 7, and the retaining ring is placed on the middle sleeve. After the placement is completed, the cylinder of the nitrogen spring is placed on the upper surface of the frame 1, and the outer surface of the cylinder is aligned with the inner side of the V-shaped seat 13 to ensure that the central axis of the cylinder coincides with the central axis of the upper mold 5, and then the control switch 9 is adjusted. The control switch 9 controls the electromagnetic valve 4 to work, and the electromagnetic valve 4 controls the external compressed air to enter the interior of the cylinder 3. The telescopic end of the cylinder 3 extends out to drive the upper mold 5 to move downward by driving the connecting sleeve 18, and the lower end of the upper mold 5 gradually contacts the middle sleeve below, and the upper side wall of the retaining ring groove 6 contacts the retaining ring. The upper mold 5 squeezes the middle sleeve and the retaining ring into the interior of the cylinder body. After the upper mold 5 and the lower mold 7 are fitted, the installation of the retaining ring and the middle sleeve is completed, and then the control switch 9 is adjusted, and the electromagnetic valve 4 changes the flow of the internal compressed air to facilitate the control of the telescopic end of the cylinder 3 to retract and reset, and then The cylinder body can continue to be placed under the upper die 5 to install the retaining ring. During the working process, the operator can place the cylinder body on both sides for processing in turn to improve the installation efficiency of the nitrogen spring retaining ring. When assembling different types of nitrogen springs, different upper dies 5 and lower dies 7 can be replaced for assembly. When replacing the upper die 5, the pin 19 can be pulled out, the upper die 5 can be removed from the lower end of the connecting sleeve 18, and then the new upper die 5 can be inserted into the inside of the connecting sleeve 18, and then the pin 19 can be re-inserted to position the upper die 5, and then the round nut 1 can be rotated. 1. The circular nut 11 drives the screw rod 12 to move longitudinally, and the screw rod 12 drives the V-shaped seat 13 to move longitudinally. The position of the V-shaped seat 13 can be adjusted to facilitate the positioning of cylinders with different diameters. During the rotation of the circular nut 11, the wall of the groove 15 moves the positioning column 17, and the positioning column 17 moves out of the groove 15 and drives the spring sheet 16 to undergo elastic deformation. After the circular nut 11 stops rotating, the positioning column 17 and the groove 15 are movably engaged to increase the resistance when rotating the circular nut 11, which facilitates the locking of the position of the V-shaped seat 13.

[0027] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A double-station nitrogen spring circlip installation device, characterized in that: including a frame (1); A frame (1): a gantry (2) is provided on its upper surface, a symmetrically distributed cylinder (3) is provided at the upper end of the gantry (2), two solenoid valves (4) are provided on the upper side wall of the gantry (2), the air holes of the solenoid valves (4) are connected to the laterally adjacent cylinders (3) through air pipes, the telescopic ends of the cylinders (3) are provided with connecting sleeves (18), the lower ends of the connecting sleeves (18) are movably connected with upper molds (5), the lower ends of the outer arc surfaces of the upper molds (5) are provided with retaining ring grooves (6), and two lower molds (7) are placed on the upper surface of the frame (1); The invention also includes a control switch (9), wherein the number of the control switches (9) is two, and the control switches (9) are both arranged on the upper surface of the frame (1); the input end of the solenoid valve (4) is electrically connected to the output end of the control switch (9), and the input end of the control switch (9) is electrically connected to an external power supply.

2. A double-station nitrogen spring circlip installation device according to claim 1, characterized in that: A pin shaft (19) is movably inserted into the insertion hole at the upper end of the outer arc surface of the connecting sleeve (18), and the pin shaft (19) passes through the through hole at the upper end of the upper mold (5).

3. A double-station nitrogen spring circlip installation device according to claim 1, characterized in that: A positioning ring (8) is provided on the upper surface of the frame (1), and the lower molds (7) are respectively located inside the positioning ring (8).

4. A double-station nitrogen spring circlip installation device according to claim 1, characterized in that: Two support seats (10) are provided at the rear side of the upper surface of the frame (1), and a circular nut (11) is installed in the middle of each support seat (10). A screw rod (12) is threadedly connected in the middle of each circular nut (11). Both ends of the screw rod (12) pass through the outer surface of the support seat (10), and a V-shaped seat (13) is provided at the front end of each screw rod (12). The V-shaped seat (13) is slidably connected to the upper surface of the frame (1).

5. A double-station nitrogen spring circlip installation device according to claim 4, characterized in that: The rear ends of the V-shaped seats (13) are provided with symmetrically distributed sliding columns (14), and the sliding columns (14) are slidably connected to the corresponding supporting seats (10) in the longitudinal direction.

6. A double-station nitrogen spring circlip installation device according to claim 4, characterized in that: The outer arc surface of the circular nut (11) is provided with evenly distributed grooves (15).

7. A double-station nitrogen spring circlip installation device according to claim 6, characterized in that: The upper end of the support seat (10) is provided with a spring sheet (16), and one end of the spring sheet (16) close to the circular nut (11) is provided with a positioning column (17), and the positioning column (17) is movably engaged with the laterally adjacent grooves (15).

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