Door closer assembling machine

Abstract

The utility model relates to the technical field of door closer production equipment, in particular to a door closer assembling machine. The device comprises a rack, a first locking mechanism used for fixing the lower end of a door closer shell is arranged on the rack, and a first pneumatic wrench and a second pneumatic wrench which are in sliding connection with the rack are arranged on the two sides of the first locking mechanism respectively. A second locking mechanism used for fixing the upper end of the door closer shell and the door closer piston body is further arranged on the portion, located above the door closer shell, of the machine frame. Gluing mechanisms used for spraying thread glue to the corresponding sealing covers are further arranged on the portions, located above the first pneumatic wrench and the second pneumatic wrench, of the machine frame. According to the door closer, after the prior art is improved, the thread glue is sprayed before the sealing cover is installed, a layer of tough plastic glue film can be formed in a thread gap, the stability after the screw is locked is effectively ensured, the loosening phenomenon is avoided, the leakage prevention effect is improved, the overall service life of the door closer is remarkably prolonged, and the reliability of the door closer is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to door closer production equipment technical field especially relates to a door closer assembling machine. BACKGROUND

[0002] The basic function of the door closer is to automatically close the door, and it can also be closed smoothly to protect the door frame and the door body. In the prior art, the assembly of the door closer usually depends entirely on manual assembly. Since the hydraulic oil is filled in the inner cavity of the door closer, the sealing performance of the end cover and the cover is required to be higher. Assembling the end cover and the cover to the shell of the door closer is an important process of the door closer assembly, and since the sealing performance is required to be higher, the assembly requirement is higher and the difficulty is greater; and multiple stations need to be set in the assembly process, which is high in labor cost and low in assembly efficiency.

[0003] Therefore, the Chinese patent document with the authorization number CN203726124U discloses a door closer assembling machine, which comprises a rack, a locking mechanism, a first pneumatic wrench, a second pneumatic wrench and a third pneumatic wrench. The locking mechanism is arranged on the rack for fixing the shell. The first pneumatic wrench is arranged on the rack for locking the end cover to the shell. The second pneumatic wrench is arranged on the rack for locking the cover to the shell. The third pneumatic wrench is arranged on the rack for locking the cover to the shell. The locking mechanism is locked by pneumatic control. The end cover and the cover of the door closer are tightened by the pneumatic wrench instead of manual work, which effectively reduces the assembly time, improves the assembly efficiency and saves labor. However, the second pneumatic wrench and the third pneumatic wrench directly tighten the cover to the shell by thread connection. However, after a long time of use, the thread connection between the cover and the shell will gradually loosen, which will significantly reduce the sealing performance between them. This poor sealing performance will directly lead to the leakage of hydraulic oil in the door closer. The leakage of hydraulic oil will not only damage the normal working environment of the door closer, but also adversely affect the overall performance of the door closer, which will eventually seriously shorten the service life of the door closer.

[0004] Therefore, it is necessary to improve the deficiencies of the prior art. SUMMARY

[0005] The utility model wants to solve the technical problem in prior art, provides a door closer assembly machine, solves the prior art in the second pneumatic wrench and third pneumatic wrench directly with the way of thread connection is screwed on the door closer casing, however after long time use, the thread connection between the cover and the door closer casing will gradually loosen, make the sealing between the both significantly decline, this sealing condition of deterioration, will directly lead to the hydraulic oil in the door closer to leak, the leakage of hydraulic oil will not only destroy the normal working environment of the door closer, also can have the unfavorable influence to the overall performance of the door closer, finally seriously shorten the service life of the door closer.

[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a door closer assembly machine, including the frame, be equipped with first locking mechanism for the fixed lower end of door closer casing on the frame, the both sides of first locking mechanism are equipped with the first pneumatic wrench and second pneumatic wrench of sliding connection with the frame, the frame is located above door closer casing still be equipped with second locking mechanism for the fixed upper end of door closer casing and door closer piston body, the frame is located above first pneumatic wrench and second pneumatic wrench still be equipped with the upper glue mechanism for the corresponding cover spray thread glue.

[0007] Adopt the above technical scheme, in the assembly flow, first, the cover is accurately assembled to the first pneumatic wrench and the second pneumatic wrench respectively;Then place the door closer casing and be locked and fixed through the control first locking mechanism to the lower end of door closer and the second locking mechanism is fixed to the lower end and piston body of door closer casing from the upper door closer casing synchronously;Then control the upper glue mechanism, respectively to the cover on the first pneumatic wrench and the second pneumatic wrench periphery thread glue smearing operation;Then, the first pneumatic wrench is driven to drive its cover to approach the door closer casing and is screwed to the casing after retracting.The gear shaft is then engaged with the piston body through the cavity of the door closer casing and abuts against the cover that has been firmly installed;Then, control the second pneumatic wrench to drive the cover on it to approach the other side of the casing and is screwed after retracting, finally control the first locking mechanism and the second locking mechanism to loosen the fixation of the door closer casing, finally realize the assembly of the door closer casing, piston body, gear shaft and cover.Through the uniform thread glue smearing of the upper glue mechanism to the cover, a layer of tough plastic film is formed in the thread gap, effectively ensuring the stability of the screw locking, avoiding the occurrence of loosening phenomenon, at the same time, the thread glue can replace the traditional rubber, asbestos, metal and other gasket sealing materials, realize more closely contact surface, further enhance the sealing, improve the anti-leakage effect, thereby significantly improve the overall service life and reliability of the door closer.

[0008] The further setting of the technical scheme is that the gluing mechanism comprises a sliding table cylinder mounted on the rack and a glue spraying head mounted on a sliding table of the sliding table cylinder, and the sliding table cylinder can drive the glue spraying head to approach the cover on the first pneumatic wrench or the second pneumatic wrench and make the nozzle of the glue spraying head above the cover.

[0009] With the above technical scheme, after the first pneumatic wrench and the second pneumatic wrench complete the cover installation, the gluing process is entered; at this time, the sliding table cylinder is first started to drive the glue spraying head to approach the cover on the first pneumatic wrench or the second pneumatic wrench and make the nozzle of the glue spraying head just above the cover; then, the glue spraying head is started to begin to spray the thread glue outward; at the same time, the first pneumatic wrench and the second pneumatic wrench act synchronously to drive the covers installed respectively to rotate one circle; in the process of the cover rotating, the thread glue is evenly sprayed on the outer peripheral surface of the cover, so as to ensure that each part of the outer periphery of the cover is fully covered with the thread glue; after the cover rotates one circle and the thread glue is evenly sprayed, the sliding table cylinder is actuated again to drive the glue spraying head to gradually move away from the cover; thus, a complete gluing operation is successfully completed.

[0010] The further setting of the technical scheme is that the first locking mechanism comprises a limiting seat mounted on the rack and a limiting cylinder mounted on one side of the limiting seat, the limiting seat is provided with a limiting groove at the upper end, the limiting seat is provided with an avoiding groove communicated with the limiting groove on the side facing the limiting cylinder, and the movable end of the limiting cylinder can pass through the avoiding groove and abut against the side surface of the door closer shell.

[0011] With the above technical scheme, after the door closer shell is placed into the limiting groove of the limiting seat, the limiting cylinder is started, the movable end of the limiting cylinder is extended and passes through the avoiding groove to abut against the side surface of the door closer shell, so as to realize the stable fixation of the lower end of the door closer shell.

[0012] The further setting of the technical scheme is that the second locking mechanism comprises a first lifting cylinder vertically mounted on the rack, a movable plate horizontally and slidingly connected with the rack, a push-pull cylinder capable of driving the movable plate to reciprocate, and a fixing rod mounted on the movable plate, the fixing rod vertically passes through the movable plate and is slidingly connected with the movable plate, the movable end of the first lifting cylinder is connected with an abutting plate, the upper end of the fixing rod is just below the abutting plate and the lower end is just above the door closer shell when the movable end of the push-pull cylinder is extended, the fixing rod is provided with a reset spring, one end of the reset spring abuts against the upper end of the fixing rod and the other end abuts against the movable plate.

[0013] According to the technical scheme, after the door closer shell is placed into the limiting groove of the limiting seat, the movable end of the push-pull cylinder is first extended to push the movable plate, so that the fixed rod is moved to be vertically aligned between the abutting plate on the movable end of the first lifting cylinder and the door closer shell. Then, the first lifting cylinder is started to drive the movable end to press the fixed rod at the upper end, so that the lower end of the fixed rod presses the reset spring and moves downward until the lower end approaches and abuts against the piston body installed in the door closer shell. After the piston body is pressed, the spring in the inner cavity of the door closer shell is further compressed until a predetermined position is reached, and the upper end of the fixed rod can be fixed and limited at the upper end of the door closer shell to ensure the stability during the installation of the cover. After the installation of the cover is completed, the movable end of the first lifting cylinder is driven to retract the abutting plate, and the fixed rod moves upward away from the door closer shell under the elastic action of the reset spring. Then, the movable end of the push-pull cylinder is retracted, and the fixed rod is horizontally moved through the movable plate to release the space above the door closer shell, which facilitates the taking out of the assembled door closer shell and the placing of a new un-assembled door closer shell.

[0014] Further, the first pneumatic wrench and the second pneumatic wrench are respectively slidably connected with first and second sliding rails installed on the rack, and the first pneumatic wrench and the second pneumatic wrench are respectively connected with first and second drive cylinders on one side.

[0015] According to the above technical scheme, the first drive cylinder can drive the first pneumatic wrench to slide along the first sliding rail relative to the rack and realize approaching or moving away from one side of the door closer shell. Similarly, the second drive cylinder can drive the second pneumatic wrench to slide along the second sliding rail relative to the rack and realize approaching or moving away from the other side of the door closer shell.

[0016] Further, the second pneumatic wrench is provided with a third locking mechanism which has the same structure as the first locking mechanism, the third pneumatic wrench is slidably connected with the rack above the third locking mechanism, the third sliding rail is installed on the rack and slidably connected with the third pneumatic wrench, and the third drive cylinder is connected with the third pneumatic wrench on one side.

[0017] According to the above technical scheme, the door closer shell with the installed cover is placed into the limiting seat of the third locking mechanism and fixed by the limiting cylinder at the lower end, and then the end cover is installed on the third pneumatic wrench. Then, the third drive cylinder drives the third pneumatic wrench to slide along the third sliding rail to abut against the upper end of the door closer shell, and the cover is tightened on the shell, so that the sealing assembly of the door closer body is completed.

[0018] Further setting of the above technical scheme is that the fourth pneumatic wrench is further connected with a fourth driving cylinder, the fourth pneumatic wrench can abut against the gear shaft on the side surface of the door closer shell and drive the gear shaft to rotate.

[0019] With the above technical scheme, the fourth driving cylinder can drive the fourth pneumatic wrench to approach the door closer shell along the fourth slide rail and finally butt joint with the gear shaft, then the fourth pneumatic wrench rotates and drives the gear shaft to drive the piston body to move downward, thereby avoiding the abrasion and increasing the torque to be provided caused by the rotation of the end cover and the contact with the piston body during the installation of the end cover; after the end cover is installed, the fourth driving cylinder is driven to drive the fourth pneumatic wrench to be separated from the gear shaft.

[0020] Further setting of the above technical scheme is that the edge of the rack facing the artificial operation side is provided with a plurality of control buttons.

[0021] With the above technical scheme, the control buttons are arranged at the edge of the rack, which facilitates the workers of the corresponding workstations to manually and independently control the rhythm according to the assembly progress.

[0022] The beneficial effects achieved by the utility model are as follows: spraying the thread glue before the installation of the cover can form a layer of tough plastic glue film in the thread gap, effectively ensures the stability after the screw locking, avoids the occurrence of the loosening phenomenon, improves the anti-leakage effect, and significantly improves the overall service life and reliability of the door closer. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structure schematic view of a perspective one of an embodiment of the utility model;

[0024] Figure 2 is a partial view of A in Figure 1

[0025] Figure 3 is a structure schematic view of a perspective two of an embodiment of the utility model;

[0026] Figure 4 is a partial view of B in Figure 3

[0027] Figure 5 is a structure schematic view of a perspective three of an embodiment of the utility model.

[0028] ​​Marked in the figure: 1-frame, 10-operating button, 2-first locking mechanism, 21-limiting seat, 22-limiting cylinder, 23-limiting groove, 24-avoidance groove, 3-first pneumatic wrench, 31-first sliding rail, 32-first driving cylinder, 4-second pneumatic wrench, 41-second sliding rail, 42-second driving cylinder, 5-second locking mechanism, 51-first lifting cylinder, 52-moving plate, 53-pushing and pulling cylinder, 54-fixed rod, 55-pressing plate, 56-reset spring, 6-gluing mechanism, 61-sliding table cylinder, 62-gluing head, 7-third locking mechanism, 8-third pneumatic wrench, 81-third sliding rail, 82-third driving cylinder, 9-fourth pneumatic wrench, 91-fourth sliding rail, 92-fourth driving cylinder, A1-door closer housing, A2-gear shaft. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] As shown in Figure 1 , 2 , 5, a door closer assembling machine comprises a frame 1, the frame 1 is provided with a first locking mechanism 2 for fixing the lower end of a door closer housing A1, the two sides of the first locking mechanism 2 are respectively provided with a first pneumatic wrench 3 and a second pneumatic wrench 4 in sliding connection with the frame 1, the frame 1 located above the door closer housing A1 is further provided with a second locking mechanism 5 for fixing the upper end of the door closer housing A1 and a door closer piston body, and the frame 1 located above the first pneumatic wrench 3 and the second pneumatic wrench 4 is further respectively provided with a gluing mechanism 6 for spraying thread glue on the corresponding cover; the gluing mechanism 6 comprises a sliding table cylinder 61 mounted on the frame 1 and a gluing head 62 mounted on the sliding table of the sliding table cylinder 61, and the sliding table cylinder 61 can drive the gluing head 62 to approach the cover on the first pneumatic wrench 3 or the second pneumatic wrench 4 and make the nozzle of the gluing head 62 located above the cover.

[0031] As shown in Figure 1 , 2 , the first locking mechanism 2 comprises a limiting seat 21 mounted on the frame 1 and a limiting cylinder 22 mounted on one side of the limiting seat 21, the upper end of the limiting seat 21 is provided with a limiting groove 23, the side of the limiting seat 21 facing the limiting cylinder 22 is provided with an avoidance groove 24 in communication with the limiting groove 23, and the movable end of the limiting cylinder 22 can pass through the avoidance groove 24 and abut against the side surface of the door closer housing A1.

[0032] AsFigure 1 , 3 As shown in Figures 4 and 5, the second locking mechanism 5 includes a first lifting cylinder 51 vertically mounted on the frame 1, a movable plate 52 horizontally slidably connected to the frame 1, a push-pull cylinder 53 capable of driving the movable plate 52 to reciprocate, and a fixed rod 54 mounted on the movable plate 52. The fixed rod 54 vertically passes through the movable plate 52 and is slidably connected to the movable plate 52. The movable end of the first lifting cylinder 51 is connected to a pressure plate 55. When the movable end of the push-pull cylinder 53 extends, the upper end of the fixed rod 54 is exactly below the pressure plate 55, and the lower end is exactly above the door closer housing A1. A return spring 56 is sleeved on the fixed rod 54. One end of the return spring 56 abuts against the upper end of the fixed rod 54, and the other end abuts against the movable plate 52.

[0033] like Figure 1 , 3 As shown, the first pneumatic wrench 3 and the second pneumatic wrench 4 are respectively slidably connected to the bottom of the first pneumatic wrench 3 and the second pneumatic wrench 4, which are mounted on the frame 1. The first pneumatic wrench 3 and the second pneumatic wrench 4 are also respectively connected to the first driving cylinder 32 and the second driving cylinder 42 on one side.

[0034] like Figure 1 , 3 As shown in Figures 5 and 6, a third locking mechanism 7 with the same structure as the first locking mechanism 2 is provided on one side of the second pneumatic wrench 4. A third pneumatic wrench 8 that is vertically slidably connected to the frame 1 is provided above the third locking mechanism 7. A third slide rail 81 that is slidably connected to the third pneumatic wrench 8 is installed on the frame 1. A third drive cylinder 82 is connected to one side of the third pneumatic wrench 8. A fourth pneumatic wrench 9 is also provided on the frame 1. The fourth pneumatic wrench 9 is slidably connected to the fourth slide rail 91. The fourth slide rail 91 is installed on the frame 1. The fourth pneumatic wrench 9 is also connected to the fourth drive cylinder 92. The fourth pneumatic wrench 9 can abut against the gear shaft A2 on the side of the door closer housing A1 and drive the gear shaft A2 to rotate.

[0035] like Figure 5 As shown, the edge of the frame 1 facing the manual operation side is provided with several control buttons 10.

[0036] In the above embodiment, in the assembly process, the caps are first accurately assembled on the first pneumatic wrench 3 and the second pneumatic wrench 4 respectively; then the door closer housing A1 is placed and the lower end of the door closer is locked and fixed by operating the limiting cylinder 22 of the first locking mechanism 2, and the second locking mechanism 5 is simultaneously actuated to fix the lower end of the door closer housing A1 and the piston body from above; then the glue spraying head 62 of the glue applying mechanism 6 is operated to approach the caps on the first pneumatic wrench 3 and the second pneumatic wrench 4 and apply thread glue to the outer periphery of the caps; then the first pneumatic wrench 3 is driven to approach the caps to the door closer housing A1 and tighten the caps on the housing, and then retract. Subsequently, the gear shaft A2 is engaged with the piston body through the cavity of the door closer housing A1 and abuts against the cap that has been firmly installed on one end; then the second pneumatic wrench 4 is operated to drive the cap thereon to approach the other side of the housing and tighten, and then retract, and finally the first locking mechanism 2 and the second locking mechanism 5 are operated to release the fixation of the door closer housing A1, thereby realizing the assembly of the door closer housing A1, the piston body, the gear shaft A2 and the cap. Then the above assembled door closer housing A1 is transferred to the third locking mechanism 7 for fixation, and then the end cover is installed, thereby completing the assembly of the door closer main body. The uniform thread glue is applied to the outer periphery of the cap by the glue applying mechanism 6, thereby forming a tough plastic glue film in the thread gap, effectively ensuring the stability after screw locking and avoiding the occurrence of loosening. Meanwhile, the thread glue can replace the traditional rubber, asbestos, metal and other gasket sealing materials, thereby realizing a more compact contact surface, further enhancing the sealing performance and improving the anti-leakage effect, thereby significantly improving the overall service life and reliability of the door closer.

Claims

1. A door closer assembly machine, comprising a rack, a first locking mechanism for fixing a lower end of a door closer housing is arranged on the rack, and a first pneumatic wrench and a second pneumatic wrench in sliding connection with the rack are arranged on both sides of the first locking mechanism, characterized in that: The machine frame above the door closer shell is also provided with a second locking mechanism for fixing the upper end of the door closer shell and the door closer piston body, and the machine frame above the first pneumatic wrench and the second pneumatic wrench is respectively provided with an upper glue applying mechanism for applying glue to the corresponding cover.

2. A door closer assembly machine according to claim 1, wherein: The upper glue applying mechanism comprises a sliding table cylinder mounted on the machine frame and a glue spraying head mounted on a sliding table of the sliding table cylinder, and the sliding table cylinder can drive the glue spraying head to approach the cover on the first pneumatic wrench or the second pneumatic wrench and make the nozzle of the glue spraying head above the cover.

3. A door closer assembly machine according to claim 2, wherein: The first locking mechanism comprises a limiting seat mounted on the machine frame and a limiting cylinder mounted on one side of the limiting seat, the upper end of the limiting seat is provided with a limiting groove, the side of the limiting seat facing the limiting cylinder is provided with an avoiding groove communicating with the limiting groove, and the movable end of the limiting cylinder can pass through the avoiding groove and abut against the side surface of the door closer shell.

4. A door closer assembly machine according to claim 3, wherein: The second locking mechanism comprises a first lifting cylinder vertically mounted on the machine frame, a movable plate horizontally and slidingly connected with the machine frame, a push-pull cylinder capable of driving the movable plate to move back and forth, and a fixing rod mounted on the movable plate, the fixing rod vertically passes through the movable plate and is slidingly connected with the movable plate, the movable end of the first lifting cylinder is connected with an abutting plate, the upper end of the fixing rod is just below the abutting plate and the lower end is just above the door closer shell when the movable end of the push-pull cylinder extends, the fixing rod is provided with a reset spring, one end of the reset spring abuts against the upper end of the fixing rod and the other end abuts against the movable plate.

5. A door closer assembly machine according to claim 4, wherein: The first pneumatic wrench and the second pneumatic wrench are respectively slidingly connected with a first sliding rail and a second sliding rail mounted on the machine frame, and the first pneumatic wrench and the second pneumatic wrench are respectively connected with a first driving cylinder and a second driving cylinder on one side.

6. A door closer assembly machine according to any one of claims 3 to 5 wherein: The second pneumatic wrench is provided with a third locking mechanism which has the same structure as the first locking mechanism on one side, the third pneumatic wrench vertically and slidingly connected with the machine frame is arranged above the third locking mechanism, the machine frame is provided with a third sliding rail slidingly connected with the third pneumatic wrench, and the third pneumatic wrench is connected with a third driving cylinder on one side.

7. A door closer assembly machine according to claim 6, wherein: The machine frame is also provided with a fourth pneumatic wrench, the fourth pneumatic wrench is slidingly connected with a fourth sliding rail, the fourth sliding rail is mounted on the machine frame, the fourth pneumatic wrench is also connected with a fourth driving cylinder, and the fourth pneumatic wrench can abut against and drive the gear shaft on the side surface of the door closer shell to rotate.

8. A door closer assembly machine according to claim 7, wherein: The edge of the machine frame facing the artificial operation side is provided with a plurality of control buttons.

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