Endurance test device for rotary switch

Abstract

The utility model relates to the technical field of rotary switch endurance tests, in particular to a rotary switch endurance test device, which can conveniently control the forward and reverse rotation switching rotation of a rotary switch, eliminate the pause of the rotary switch during the forward and reverse rotation switching, effectively improve the efficiency of endurance test detection and improve the practicability. Comprising a bottom plate, four sets of supporting legs are fixedly arranged at the bottom end of the bottom plate, a fixing frame is fixedly installed at the top end of the bottom plate, a support is fixedly installed on the left side of the top end of the fixing frame, a motor is fixedly installed on the support, a crankshaft is rotatably installed on the support, the right end of a transmission batten is hinged to a hinge seat, and a clamping tool is fixedly connected to the bottom end of a rotating shaft; the lifting air cylinder is fixedly installed at the bottom of the bottom plate, the output end of the lifting air cylinder is fixedly connected with a lifting frame, two sets of clamping air cylinders are fixedly installed on the lifting frame in a bilateral symmetry mode, and the output ends of the two sets of clamping air cylinders are fixedly connected with clamping tools.

Description

Technical Field

[0001] The utility model relates to the technical field of durability test of rotary switches, in particular to a durability test device for rotary switches. Background Art

[0002] Rotary switches are rotary pulse generators used to replace the analog functions of traditional resistive potentiometers. These rotary switches are usually used in the human-machine interface of instrument front panels and audio-visual control panels. Rotary switches use orthogonal optical encoders as pure digital devices to replace analog potentiometers. Rotary switches are similar to traditional or resistive potentiometers in appearance, but the internal structure of these rotary switches is completely digital and uses optical technology. Similar to traditional incremental encoder products, they have two orthogonal output signals (channel A and channel B) that can be directly connected to the encoder processing chip.

[0003] During the production and processing of rotary switches, it is necessary to perform durability tests on the rotary switches to ensure that the produced rotary switches meet the service life requirements. When performing the durability test of the rotary switches, it is necessary to continuously switch the rotary switches between forward and reverse rotations. However, the existing durability test devices are not convenient for controlling the forward and reverse switching rotation of the rotary switches when in use. The rotary switches pause when switching between forward and reverse rotations, thereby affecting the efficiency of the durability test and lacking practicality. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a rotary switch durability test device which can conveniently control the forward and reverse switching rotation of a rotary switch, eliminate the pause of the rotary switch during forward and reverse switching, effectively improve the efficiency of durability test detection, and improve the practicality.

[0005] Technical Solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary switch durability test device, comprising a base plate, a rotating mechanism and a clamping mechanism, wherein four groups of legs are fixedly provided at the bottom end of the base plate, the rotating mechanism comprises a fixed frame and a movable sleeve plate, the fixed frame is fixedly installed at the top end of the base plate, a bracket is fixedly installed at the left side of the top end of the fixed frame, a motor is fixedly installed on the bracket, a crankshaft is rotatably installed on the bracket, and the front end of the crankshaft is fixedly connected to the output end of the motor, a transmission strip plate is rotatably provided on the crankshaft, a fixed plate is fixedly connected to the top right of the fixed frame, two groups of guide rods are symmetrically fixedly connected between the fixed plate and the crankshaft, and two groups of guide rods are provided on the movable sleeve plate Hole, the movable sleeve plate is slidably sleeved on the two groups of guide rods through the matching guide holes, the left end of the movable sleeve plate is fixedly provided with a hinge seat, the right end of the transmission strip plate is hinged with the hinge seat, a rotating shaft is rotatably installed at the center of the top of the fixed frame, a gear is fixedly sleeved on the top of the rotating shaft, the bottom end of the movable sleeve plate is fixedly connected with a rack, the gear is meshed with the rack, the bottom end of the rotating shaft is fixedly connected with a clamping tool, and a slot is provided at the bottom of the clamping tool, the clamping mechanism includes a lifting cylinder, the lifting cylinder is fixedly installed at the bottom of the base plate, the output end of the lifting cylinder is fixedly connected with the lifting frame, two groups of clamping cylinders are fixedly installed symmetrically on the lifting frame, and the output ends of the two groups of clamping cylinders are fixedly connected with clamping tooling.

[0007] Preferably, anti-slip pads are fixedly connected to the inner walls of the two groups of clamping tools.

[0008] Preferably, a U-shaped fastening pad is fixedly connected in the card slot at the bottom of the clamping tool.

[0009] Preferably, two groups of ribs are fixedly connected between the right end of the fixing plate and the top end of the fixing frame.

[0010] Preferably, sliding sleeves are fixedly provided in the two groups of guide holes on the movable sleeve plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects: when in use, the rotary switch to be tested is placed on the lifting frame, and the clamping cylinder is started to push the clamping tooling to clamp the rotary switch, and the lifting cylinder is started to push the lifting frame upward, so that the gear shift lever on the rotary switch is inserted into the card slot of the clamping tooling, and then the motor is started. The speed of the motor is appropriate, and the motor drives the crankshaft to rotate. During the rotation of the crankshaft, the movable sleeve plate is driven to slide back and forth on the guide rod through the transmission strip plate, so that the movable sleeve plate drives the rack to move back and forth left and right, and the rack drives the reciprocating rotation of the rotating shaft through the engagement with the gear, so that the rotating shaft drives the gear shift lever of the rotary switch to rotate back and forth in a forward and reverse direction through the clamping tooling, so as to realize the forward and reverse switching rotation of the rotary switch, and easily complete the durability test detection of the rotary switch, so that the forward and reverse switching rotation of the rotary switch can be conveniently controlled, and the pause of the rotary switch during the forward and reverse switching is eliminated, so as to effectively improve the efficiency of the durability test detection and improve the practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0013] Figure 2 It is a front structural schematic diagram of the utility model;

[0014] Figure 3 It is a schematic diagram of a partial axonometric cross-sectional structure of the utility model;

[0015] Figure 4 It is a partial axonometric structural diagram of the clamping mechanism in the utility model;

[0016] Figure 5 It is a schematic diagram of the axonometric structure of the gear and rack in the utility model;

[0017] Markings in the attached drawings: 1. base plate; 2. support leg; 3. fixed frame; 4. motor; 5. bracket; 6. crankshaft; 7. transmission strip plate; 8. fixed plate; 9. guide rod; 10. movable sleeve plate; 11. hinge seat; 12. rotating shaft; 13. gear; 14. clamping tool; 15. lifting cylinder; 16. lifting frame; 17. clamping cylinder; 18. clamping tool; 19. anti-slip pad; 20. U-shaped fastening pad; 21. rib plate; 22. sliding sleeve; 23. rack. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] Example

[0020] See also Figure 1-Figure 5The utility model is a rotary switch durability test device, comprising a bottom plate 1, four groups of legs 2 are fixedly arranged at the bottom end of the bottom plate 1, a fixing frame 3 is fixedly installed at the top of the bottom plate 1, a bracket 5 is fixedly installed on the left side of the top of the fixing frame 3, a motor 4 is fixedly installed on the bracket 5, a crankshaft 6 is rotatably installed on the bracket 5, and the front end of the crankshaft 6 is fixedly connected to the output end of the motor 4, a transmission strip plate 7 is rotatably sleeved on the crankshaft 6, a fixing plate 8 is fixedly connected to the top right of the fixing frame 3, two groups of guide rods 9 are symmetrically fixedly connected between the fixing plate 8 and the crankshaft 6, two groups of guide holes are arranged on the movable sleeve plate 10, and the movable sleeve The plate 10 is slidably mounted on the two sets of guide rods 9 through the guide holes. The left end of the movable sleeve plate 10 is fixedly provided with an articulated seat 11. The right end of the transmission strip plate 7 is hinged to the articulated seat 11. A rotating shaft 12 is rotatably mounted on the top center of the fixed frame 3. A gear 13 is fixedly mounted on the top of the rotating shaft 12. A rack 23 is fixedly connected to the bottom end of the movable sleeve plate 10. The gear 13 meshes with the rack 23. A fixture 14 is fixedly connected to the bottom end of the rotating shaft 12. A slot is provided at the bottom of the fixture 14. A lifting cylinder 15 is fixedly mounted at the bottom of the base plate 1. A lifting frame 16 is fixedly connected to the output end of the lifting cylinder 15. The left end of the lifting frame 16 is fixedly connected to the output end of the lifting cylinder 15. Two groups of clamping cylinders 17 are fixedly installed symmetrically on the right, and the output ends of the two groups of clamping cylinders 17 are fixedly connected with clamping fixtures 18; when in use, the rotary switch to be detected is placed on the lifting frame 16, and the clamping cylinder 17 is started to push the clamping fixture 18 to clamp the rotary switch, and the lifting cylinder 15 is started to push the lifting frame 16 upward, so that the gear lever on the rotary switch is inserted into the card slot of the clamping fixture 14, and then the motor 4 is started. The speed of the motor 4 is appropriate, and the motor 4 drives the crankshaft 6 to rotate. During the rotation of the crankshaft 6, the transmission strip plate 7 drives the movable sleeve 10 to slide back and forth on the guide rod 9, so that the movable sleeve 10 drives the rack 23 to move back and forth, and the rack 23 drives the rotating shaft 12 to rotate back and forth through the meshing with the gear 13, so that the rotating shaft 12 drives the gear lever of the rotary switch to rotate back and forth continuously through the clamping fixture 14, so as to realize the forward and reverse switching rotation of the rotary switch, and easily complete the durability test of the rotary switch, so as to facilitate the control of the forward and reverse switching rotation of the rotary switch, eliminate the pause of the rotary switch when switching forward and reverse, effectively improve the efficiency of the durability test, and improve the practicability.

[0021] The inner walls of the two groups of the clamping tools 18 are both fixedly connected with anti-skid pads 19; by providing the anti-skid pads 19, the clamping tools 18 can be made to clamp the rotary switch more tightly and firmly to avoid slipping.

[0022] A U-shaped fastening pad 20 is fixedly connected in the slot at the bottom of the clamping tool 14; by providing the U-shaped fastening pad 20, the clamping tool 14 can be more secure when clamping the gear lever sleeve on the rotary switch.

[0023] Two groups of ribs 21 are fixedly connected between the right end of the fixing plate 8 and the top end of the fixing frame 3 ; by providing the ribs 21 , the connection between the fixing plate 8 and the fixing frame 3 can be made more firm and stable.

[0024] Sliding sleeves 22 are fixedly disposed in the two sets of guide holes on the movable sleeve plate 10 ; by providing the sliding sleeves 22 , the sliding of the movable sleeve plate 10 on the guide rod 9 can be made smoother.

[0025] The utility model discloses a rotary switch durability test device. Its working principle is that when in use, the rotary switch to be tested is placed on the lifting frame 16, and the clamping cylinder 17 is started to push the clamping tool 18 to clamp the rotary switch. The lifting cylinder 15 is started to push the lifting frame 16 to move upward, so that the gear shift lever on the rotary switch is inserted into the card slot of the clamping tool 14, and then the motor 4 is started. The speed of the motor 4 is appropriate, and the motor 4 drives the crankshaft 6 to rotate. During the rotation of the crankshaft 6, the transmission strip plate 7 drives the movable sleeve plate 10 to slide back and forth on the guide rod 9, so that the movable sleeve plate 10 drives the rack 23 to move back and forth, and the rack 23 drives the rotating shaft 12 to rotate back and forth through the meshing with the gear 13, so that the rotating shaft 12 drives the gear shift lever of the rotary switch to rotate back and forth in the forward and reverse directions through the clamping tool 14, so as to realize the forward and reverse switching rotation of the rotary switch, and easily complete the durability test of the rotary switch.

[0026] The utility model provides a rotary switch durability test device, and its installation method, connection method or setting method are all common mechanical methods, and can be implemented as long as they can achieve their beneficial effects; the motor, lifting cylinder and clamping cylinder of the rotary switch durability test device of the utility model are purchased on the market, and technicians in this industry only need to install and operate them according to the accompanying instruction manual.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A rotary switch durability test device, comprising a base plate (1), characterized in that: Also includes a rotating mechanism and a clamping mechanism; A bottom plate (1), wherein four groups of supporting legs (2) are fixedly provided at the bottom end of the bottom plate (1); The rotating mechanism comprises a fixed frame (3) and a movable sleeve plate (10), wherein the fixed frame (3) is fixedly mounted on the top of a bottom plate (1), a bracket (5) is fixedly mounted on the left side of the top of the fixed frame (3), a motor (4) is fixedly mounted on the bracket (5), a crankshaft (6) is rotatably mounted on the bracket (5), and the front end of the crankshaft (6) is fixedly connected to the output end of the motor (4), a transmission strip plate (7) is rotatably sleeved on the crankshaft (6), a fixed plate (8) is fixedly connected to the top right of the fixed frame (3), two sets of guide rods (9) are symmetrically fixedly connected between the fixed plate (8) and the crankshaft (6), and the movable sleeve plate (10) is provided with two groups of guide holes, the movable sleeve plate (10) is slidably sleeved on the two groups of guide rods (9) through the matching guide holes, the left end of the movable sleeve plate (10) is fixedly provided with a hinge seat (11), the right end of the transmission strip plate (7) is hinged to the hinge seat (11), a rotating shaft (12) is rotatably installed at the center of the top of the fixed frame (3), a gear (13) is fixedly sleeved on the top of the rotating shaft (12), the bottom end of the movable sleeve plate (10) is fixedly connected with a rack (23), the gear (13) is meshed with the rack (23), the bottom end of the rotating shaft (12) is fixedly connected with a clamping tool (14), and a clamping groove is provided at the bottom of the clamping tool (14); The clamping mechanism comprises a lifting cylinder (15), the lifting cylinder (15) is fixedly mounted on the bottom of the base plate (1), the output end of the lifting cylinder (15) is fixedly connected to a lifting frame (16), two groups of clamping cylinders (17) are fixedly mounted on the lifting frame (16) in a left-right symmetrical manner, and the output ends of the two groups of clamping cylinders (17) are both fixedly connected to a clamping tool (18).

2. A rotary switch durability test device as claimed in claim 1, characterized in that: Anti-slip pads (19) are fixedly connected to the inner walls of the two sets of clamping tools (18).

3. A rotary switch durability test device as claimed in claim 2, characterized in that: A U-shaped fastening pad (20) is fixedly connected in the clamping groove at the bottom of the clamping tool (14).

4. A rotary switch durability test device as claimed in claim 3, characterized in that: Two groups of ribs (21) are fixedly connected between the right end of the fixing plate (8) and the top end of the fixing frame (3).

5. A rotary switch durability test device as claimed in claim 4, characterized in that: Sliding sleeves (22) are fixedly arranged in the two groups of guide holes on the movable sleeve plate (10).

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