Door closer testing machine
By introducing technical means such as servo cylinders, transmission racks and transmission shafts into the door closer test equipment, the functional and durability test at the same station is realized, and the problems of low efficiency and insufficient accuracy of traditional equipment are solved. Improves test efficiency and accuracy of results.
Patent Information
- Application Number
- CN202420964206.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-07
AI Technical Summary
Traditional door closer testing equipment cannot complete functional and durability tests at the same station, resulting in low testing efficiency and inaccurate results, affecting the stability of production quality.
A test machine including a frame, control box, servo cylinder, transmission rack, transmission shaft, torque sensor and angle sensor was designed. The automatic door opening and closing of the door closer is realized by driving the transmission rack and transmission shaft by servo cylinder. and monitor and control the door opening and closing time, angle and torque through torque sensors and angle sensors to achieve functional and durability testing of a single station.
The efficiency and accuracy of the test are improved, the secondary clamping process is omitted, and the production quality stability of the door closer is ensured.
Smart Images
Figure CN222232033U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of testing equipment, in particular to a door closer testing machine. Background Art
[0002] The door closer is a spring-like hydraulic device on the door head. It is a damper used to control the opening and closing speed of the door body, so that the door body is automatically closed to the door frame smoothly, which protects the door body and the door frame. It is an important executive part of the intelligent management of modern buildings. In the manufacturing process of the door closer, it is necessary to test its functionality and durability to ensure the production quality of the door closer. Both test processes require frequent switching of the opening and closing state of the door closer, and the door closer often needs to be opened and closed hundreds of thousands of times during the entire durability test process, which is obviously impossible to achieve manually. In traditional door closer test equipment, functional testing and durability testing are carried out separately. The staff needs to transfer the door closer between two stations for secondary clamping. The process is not only time-consuming and labor-intensive, affecting the test efficiency, but repeated clamping will also lead to inaccurate test results, which ultimately leads to unstable production quality of the door closer. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a door closer testing machine which can complete functional testing and durability testing at the same workstation, thereby improving testing efficiency and accuracy.
[0004] The technical solution adopted by the utility model is as follows: the utility model comprises a frame, a control box arranged on the frame and a controller electrically connected to the control box, at least two sets of test fixtures are arranged on the frame, the test fixtures comprise a mounting fixture and a transmission device, the transmission device comprises a servo electric cylinder, a transmission rack and a transmission shaft, the servo electric cylinder drives the transmission rack to slide on its own extension line, the transmission rack drives the transmission shaft to rotate, a quick-change joint is replaceably arranged on the top of the transmission shaft, the quick-change joint is connected to the transmission shaft of the door closer when the door closer is placed in the mounting fixture, a torque sensor and an angle sensor are also arranged on the transmission shaft, and the servo electric cylinder, the torque sensor and the angle sensor are all electrically connected to the control box.
[0005] Furthermore, a push-pull flipping mechanism is also provided in the transmission device, including a push-pull cylinder, a swing hook and a connecting column. The push-pull cylinder is fixedly arranged on the servo electric cylinder, and the upper and lower ends of the swing hook are rotatably connected to the output end of the push-pull cylinder and the output end of the servo electric cylinder respectively through pins. The connecting column is penetrated on one end of the transmission rack close to the servo electric cylinder, and the swing hook is provided with a connecting port adapted to the connecting column.
[0006] Furthermore, the transmission device also includes a first connecting frame and a second connecting frame fixedly arranged on the lower surface of the frame, and a horizontal slide rail compatible with the transmission rack is arranged on the first connecting frame, and the servo electric cylinder is arranged on the second connecting frame, and the output end of the servo electric cylinder is against the transmission rack and pushes the transmission rack to slide on the horizontal slide rail.
[0007] Furthermore, a third connecting frame and a fourth connecting frame are arranged on the first connecting frame, and the third connecting frame and the fourth connecting frame are respectively arranged on the upper and lower sides of the horizontal slide rail. The transmission shaft is vertically penetrated through the third connecting frame and the fourth connecting frame, and a transmission gear meshing with the transmission rack is also arranged on the transmission shaft.
[0008] Furthermore, the torque sensor is arranged on the third connecting frame, and the angle sensor is arranged at the bottom of the fourth connecting frame.
[0009] Furthermore, the mounting fixture is arranged on the upper surface of the frame, including a placement frame and a clamping cylinder. The clamping cylinder is fixedly arranged on the upper surface of the frame through a fifth connecting frame, and its position corresponds to that of the placement frame. A silicone anti-pressure sleeve is also arranged on the output end of the clamping cylinder.
[0010] Furthermore, an infrared sensing switch which is linked to the pressing cylinder is also provided in the placement rack, and both the pressing cylinder and the infrared sensing switch are electrically connected to the control box.
[0011] Furthermore, a protection box is provided on the frame, the control box is fixedly provided on the protection box, the controller is connected to the top of the protection box through a rocker arm, and an alarm electrically connected to the control box is provided on the top of the protection box.
[0012] Finally, an operation window is provided on any side surface of the protection box body, and gratings electrically connected to the control box are provided on both sides of the operation window.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model controls the door opening and closing action of the door closer through the linkage of the servo electric cylinder, the transmission rack and the transmission shaft, that is, the servo electric cylinder pushes the transmission rack and drives the transmission shaft to rotate, controls the door closer connected to the quick-change joint to achieve 180° rotation, and the door closer drives the door closing action by its own power; the door opening and closing time, door opening angle and door opening torque of the door closer are monitored and controlled through the torque sensor and the angle sensor, and the door closer functionality and durability test function are realized at the same time with a single function, and the secondary clamping process is omitted, which effectively improves the efficiency and accuracy of the test. Therefore, the utility model can complete the functional test and durability test at the same station, thereby improving the test efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 is a schematic diagram of the axial structure of the test fixture;
[0016] Figure 3 is a schematic structural diagram of the transmission device;
[0017] Figure 4 It is a structural schematic diagram of the push-pull flipping mechanism. DETAILED DESCRIPTION
[0018] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the utility model includes a frame 1, a control box 2 arranged on the frame 1 and a controller 3 electrically connected to the control box 2, at least two groups of test fixtures 4 are arranged on the frame 1, the test fixture 4 includes a mounting fixture and a transmission device, the transmission device includes a servo electric cylinder 5, a transmission rack 6 and a transmission shaft 7, the servo electric cylinder 5 drives the transmission rack 6 to slide on its own extension line, the transmission rack 6 drives the transmission shaft 7 to rotate, a quick-change joint 8 is replaceably arranged on the top of the transmission shaft 7, when the door closer is placed in the mounting fixture, the quick-change joint 8 is connected to the transmission shaft of the door closer, a torque sensor 9 and an angle sensor 10 are also arranged on the transmission shaft 7, the servo electric cylinder 5, the torque sensor 9 and the angle sensor 10 are all electrically connected to the control box 2. The utility model controls the door opening and closing action of the door closer through the linkage of the servo electric cylinder 5, the transmission rack 6 and the transmission shaft 7, that is, the servo electric cylinder 5 pushes the transmission rack 6 and drives the transmission shaft 7 to rotate, controls the door closer connected to the quick-change joint 8 to achieve 180° rotation, and the door closer drives the door closing action by its own power; the door opening and closing time, door opening angle and door opening torque of the door closer are monitored and controlled through the torque sensor 9 and the angle sensor 10, and the single function is realized while realizing the function of testing the functionality and durability of the door closer, omitting the secondary clamping process, and effectively improving the efficiency and accuracy of the test. A protection box 25 is also arranged on the frame 1, and the control box 2 is fixedly arranged on the protection box 25. The controller 3 is connected to the top of the protection box 25 through the rocker arm 26, and an alarm 27 electrically connected to the control box 2 is also arranged on the top of the protection box 25. An operation window is provided on any side of the protection box 25, and gratings electrically connected to the control box 2 are provided on both sides of the operation window. The controller 3 has a built-in touch screen for displaying and inputting parameters, and the rocker 26 controls the controller 3 to move to a position convenient for the operator to operate; the grating is used to detect whether the operator's hands leave the operation window to ensure the safety of the operator.
[0019] The transmission device is also provided with a push-pull flipping mechanism, including a push-pull cylinder 11, a swing hook 12 and a connecting column 13. The push-pull cylinder 11 is fixedly arranged on the servo electric cylinder 5. The upper and lower ends of the swing hook 12 are rotatably connected to the output ends of the push-pull cylinder 11 and the output ends of the servo electric cylinder 5 respectively through pins. The connecting column 13 is penetrated on the end of the transmission rack 6 close to the servo electric cylinder 5, and the swing hook 12 is provided with a connecting port adapted to the connecting column 13. Due to the characteristics of the door closer test, that is, the door closing action is completed by the force of the door closer itself, in the present invention, the transmission rack 6 and the output end of the servo electric cylinder 5 are not structurally connected, but are in contact with each other; in order to meet the function of being able to test the door closer in both positive and negative door opening directions, the present invention sets the push-pull flip mechanism between the transmission rack 6 and the servo electric cylinder 5. Assuming that the output end of the servo electric cylinder 5 extends outward to work in the positive door opening direction of the door closer, the test process does not need to use the push-pull flip mechanism; but if a reverse door opening test is required, first select the reverse mode in the controller 3, at this time the servo electric cylinder 5 is driven, and the output end extends to find the transmission The position of the rack 6 is until it is against the latter, the push-pull cylinder 11 is started and the output end is extended outward, the swing hook 12 swings downward, the connecting port clamps the connecting column 13, and the output end of the servo electric cylinder 5 is connected to the transmission rack 6 at this time. The output end of the servo electric cylinder 5 retracts and pulls the transmission rack 6 to realize the reverse opening action of the door closer. After completing the test angle requirement, the output end of the push-pull cylinder 11 retracts, the swing hook 12 swings upward, the connecting port disengages from the connecting column 13, and the transmission rack 6 is reset under the action of the door closer itself. During the process, the servo electric cylinder 5 controls the output end to follow the transmission rack 6 to realize the switching of the forward and reverse door opening and closing actions.
[0020] The transmission device also includes a first connecting frame 14 and a second connecting frame 15 fixedly arranged on the lower surface of the frame 1. A horizontal slide rail 16 adapted to the transmission rack 6 is arranged on the first connecting frame 14. The servo electric cylinder 5 is arranged on the second connecting frame 15. The output end of the servo electric cylinder 5 abuts against the transmission rack 6 and pushes the transmission rack 6 to slide on the horizontal slide rail 16. A third connecting frame 17 and a fourth connecting frame 18 are arranged on the first connecting frame 14. The third connecting frame 17 and the fourth connecting frame 18 are arranged on the upper and lower sides of the horizontal slide rail 16. The transmission shaft 7 is vertically penetrated on the third connecting frame 17 and the fourth connecting frame 18. A transmission gear 19 meshing with the transmission rack 6 is also arranged on the transmission shaft 7. The torque sensor 9 is arranged on the third connecting frame 17, and the angle sensor 10 is arranged at the bottom of the fourth connecting frame 18.
[0021] The mounting fixture is arranged on the upper surface of the frame 1, and includes a placement frame 20 and a pressing cylinder 21. The pressing cylinder 21 is fixedly arranged on the upper surface of the frame 1 through a fifth connecting frame 22, and its position corresponds to the placement frame 20. A silicone anti-pressure sleeve 23 is also arranged on the output end of the pressing cylinder 21. An infrared sensor switch 24 that is interconnected with the pressing cylinder 21 is also arranged in the placement frame 20, and the pressing cylinder 21 and the infrared sensor switch 24 are both electrically connected to the control box 2.
[0022] The utility model is designed for fatigue and functional testing of door closers. The equipment is used as a single machine with two workstations, and the two workstations can be controlled independently. When working, the door closer to be tested is manually installed on the placement rack 20 (the transmission shaft of the door closer is aligned with the quick-change joint 8 for installation). At this time, the infrared sensor switch 24 is triggered. After the grating detects that the operator's hands have left the operating window, the clamping cylinder 21 starts to clamp the door closer; the number of fatigue tests and the number of functional test settings are set on the controller 3 (where the number of functional tests can be set to 5 times at most), and the door opening direction is selected; the equipment is started, a pre-test is performed first, and it stops automatically after the test. The pre-test result is manually compared with the set parameters, and the set parameters are modified, and the automatic operation is started again; the door closer is fatigue tested. When the number of functional settings is reached, it is automatically converted to the functional test mode to perform a functional test on the door closer, and the results are saved in the system table; after the functional test is completed, it is automatically converted to the fatigue test mode to continue to perform fatigue test on the door closer, and it is repeated until the entire test process is completed. The results of the functional test can be viewed at any time during the process. The functional test is to open and close the door from 0° to 135°, and the angle is accurately controlled by the angle sensor 10 and the torque is measured by the torque sensor 9; during the fatigue test, the door closer is repeatedly opened and closed, and the torque of opening and closing the door is monitored in real time by the torque sensor 9 during the process, and the time required for closing the door is monitored in real time. Standard values and upper and lower floating values can be set in the control box for the door opening and closing angles, torques and closing time. When an abnormality occurs, the alarm 27 flashes and sounds an alarm, and the equipment stops.
[0023] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A door closer testing machine, comprising a frame (1), a control box (2) arranged on the frame (1), and a controller (3) electrically connected to the control box (2), characterized in that: At least two groups of test fixtures (4) are arranged on the frame (1). The test fixture (4) comprises a mounting fixture and a transmission device. The transmission device comprises a servo electric cylinder (5), a transmission rack (6) and a transmission shaft (7). The servo electric cylinder (5) drives the transmission rack (6) to slide on its own extension line. The transmission rack (6) drives the transmission shaft (7) to rotate. A quick-change joint (8) is replaceably arranged on the top of the transmission shaft (7). When the door closer is placed in the mounting fixture, the quick-change joint (8) is connected to the transmission shaft of the door closer. A torque sensor (9) and an angle sensor (10) are also arranged on the transmission shaft (7). The servo electric cylinder (5), the torque sensor (9) and the angle sensor (10) are all electrically connected to the control box (2).
2. A door closer testing machine according to claim 1, characterized in that: The transmission device is also provided with a push-pull flipping mechanism, comprising a push-pull cylinder (11), a swing hook (12) and a connecting column (13). The push-pull cylinder (11) is fixedly arranged on the servo electric cylinder (5). The upper and lower ends of the swing hook (12) are rotatably connected to the output end of the push-pull cylinder (11) and the output end of the servo electric cylinder (5) respectively through pins. The connecting column (13) is penetrated on one end of the transmission rack (6) close to the servo electric cylinder (5). The swing hook (12) is provided with a connecting port adapted to the connecting column (13).
3. A door closer testing machine according to claim 2, characterized in that: The transmission device also includes a first connecting frame (14) and a second connecting frame (15) fixedly arranged on the lower surface of the frame (1); a horizontal slide rail (16) adapted to the transmission rack (6) is arranged on the first connecting frame (14); the servo electric cylinder (5) is arranged on the second connecting frame (15); the output end of the servo electric cylinder (5) abuts against the transmission rack (6) and pushes the transmission rack (6) to slide on the horizontal slide rail (16).
4. A door closer testing machine according to claim 3, characterized in that: A third connecting frame (17) and a fourth connecting frame (18) are arranged on the first connecting frame (14), and the third connecting frame (17) and the fourth connecting frame (18) are arranged on the upper and lower sides of the horizontal slide rail (16), respectively. The transmission shaft (7) is vertically penetrated through the third connecting frame (17) and the fourth connecting frame (18), and a transmission gear (19) meshing with the transmission rack (6) is also arranged on the transmission shaft (7).
5. A door closer testing machine according to claim 4, characterized in that: The torque sensor (9) is arranged on the third connecting frame (17), and the angle sensor (10) is arranged at the bottom of the fourth connecting frame (18).
6. A door closer testing machine according to claim 1, characterized in that: The mounting fixture is arranged on the upper surface of the frame (1), and comprises a placement frame (20) and a pressing cylinder (21). The pressing cylinder (21) is fixedly arranged on the upper surface of the frame (1) via a fifth connecting frame (22), and its position corresponds to that of the placement frame (20). A silicone anti-pressure sleeve (23) is also arranged on the output end of the pressing cylinder (21).
7. A door closer testing machine according to claim 6, characterized in that: An infrared sensing switch (24) which is linked to the pressing cylinder (21) is also provided in the placement rack (20); the pressing cylinder (21) and the infrared sensing switch (24) are both electrically connected to the control box (2).
8. A door closer testing machine according to claim 1, characterized in that: A protection box (25) is also provided on the frame (1), the control box (2) is fixedly provided on the protection box (25), the controller (3) is connected to the top of the protection box (25) via a rocker arm (26), and an alarm (27) electrically connected to the control box (2) is also provided on the top of the protection box (25).
9. A door closer testing machine according to claim 8, characterized in that: An operation window is provided on any side surface of the protection box body (25), and gratings electrically connected to the control box (2) are provided on both sides of the operation window.