Travel switch detection tool

Abstract

A travel switch detection tool comprises a positioning base, a detection table is fixedly installed on the positioning base, a transverse sliding groove is formed in the detection table, a testing assembly is arranged on one side of the detection table and can slide in the transverse sliding groove, a clamping mechanism is arranged on the other side of the detection table, and a travel switch can be fixed to the detection table through the clamping mechanism. After the travel switch is fixed on the detection table, the service life of the travel switch can be detected by using the test assembly; the testing assembly is also connected with a driving force mechanism, and provides power for the sliding of the testing assembly in the transverse chute. Compared with the prior art, the detection device has the technical effects that the detection plate continuously presses the lever on the travel switch, so that an external mechanical part is simulated to drive the travel switch to continuously work, the service life of the travel switch is detected, and efficient detection is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to switch detection technical field, concretely is a kind of travel switch detection tool. BACKGROUND

[0002] Travel switch, also known as limit switch or position switch, is a commonly used small current master electric appliance. It makes its contact act by the collision of mechanical movement component, to connect or break control circuit, to realize certain control purpose. This switch is widely used in various machine tools and hoisting machinery, to control its travel and carry out terminal limit protection. Travel switch is composed of operating head, lever, contact system and shell, and the contact act of travel switch is caused by the collision of external mechanical component, not manual operation. According to different structures, travel switch can be divided into direct-acting type, roller type, micro-motion type and other types, to meet the needs of different application occasions.

[0003] Travel switch makes its contact act by the collision of mechanical component, to realize the connection or break of control circuit, and long-time collision can easily cause travel switch damage, so its service life is an important performance index, thus it needs to be detected, such as patent literature with application publication number CN104991187A, which reads the force data of travel switch in travel state by electronic scale.

[0004] However, it uses manpower to drive force nut 10, which is laborious and cannot meet modern requirements. CONTENT OF UTILITY MODEL

[0005] The technical problem to be solved by the utility model is how to design a travel switch detection tool to realize mechanical simulation.

[0006] The technical scheme of the utility model is specifically as follows:

[0007] A travel switch detection tool, comprising a positioning base, a detection table is fixedly installed on the positioning base, a horizontal sliding slot is formed in the detection table, a test assembly is arranged on one side of the detection table, the test assembly can slide in the horizontal sliding slot, a clamping mechanism is arranged on the other side of the detection table, the travel switch can be fixed on the detection table by the clamping mechanism, and the service life of the travel switch can be detected by the test assembly after the travel switch is fixed on the detection table; the test assembly is also connected with a driving force mechanism, to provide power for the sliding of the test assembly in the horizontal sliding slot.

[0008] The test assembly comprises a detection plate block, a reciprocating sliding block fixed by a connecting column, the connecting column is located in a transverse sliding groove and can slide along the transverse sliding groove, the reciprocating sliding block is threadedly connected with a reciprocating screw rod, the reciprocating screw rod is movably installed in a detection table, the reciprocating screw rod is rotationally connected to the detection table, the reciprocating screw rod coaxially fixes a first transmission shaft, the first transmission shaft is provided with a first clutch, the shell of the first clutch is fixed in the detection table, a first driven bevel gear is fixed on the first transmission shaft, the first driven bevel gear meshes with a driving bevel gear, the driving bevel gear is fixed on a driving shaft, the driving shaft is connected to an output shaft of a driving motor, and the driving motor is fixed on the detection table.

[0009] Four longitudinal sliding grooves are formed in the detection table, the clamping mechanism comprises four clamping blocks, the four clamping blocks are respectively located in the four longitudinal sliding grooves and can slide in the four longitudinal sliding grooves, the driving bevel gear meshes with a second driven bevel gear, the second driven bevel gear is fixed on a second transmission shaft, the second transmission shaft is provided with a second clutch, the shell of the second clutch is fixed in the detection table, the end of the second transmission shaft is fixed with a bevel gear, the bevel gear meshes with two oppositely arranged third driven bevel gears, each third driven bevel gear is fixed on a threaded screw rod half shaft, the threads on the threaded screw rod half shafts are in the same rotation direction, the threaded screw rod half shafts are threadedly matched with a screw rod nut, the screw rod nut is fixedly installed with a U-shaped clamping frame, and the two upper ends of the clamping frame are fixedly installed with the clamping blocks.

[0010] The lower surface of the clamping block is in contact with the upper surface of the detection table.

[0011] Compared with the prior art, the utility model discloses a detection plate block continuous pressing lever on the travel switch, thereby simulating the continuous work of the travel switch driven by the external mechanical parts, detecting the service life of the travel switch, and realizing efficient detection. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the schematic diagram of the utility model in use state.

[0013] Figure 2 It is the sectional view schematic diagram of the utility model part.

[0014] Figure 3 It is the schematic diagram of test assembly.

[0015] Figure 4 It is the schematic diagram of clamping mechanism. DETAILED DESCRIPTION

[0016] The utility model will be introduced in detail below in combination with the drawings and specific embodiment.

[0017] As Figure 1The utility model provides a travel switch detection frock, including positioning base 1, fixedly installed with detection table 2 on positioning base 1, be equipped with transverse sliding slot 3 on detection table 2, one side of detection table 2 is equipped with test assembly 6, test assembly 6 can slide in transverse sliding slot 3, the other side of detection table 2 is equipped with clamping mechanism 7, travel switch 5 can be fixed on detection table 2 by clamping mechanism 7, after travel switch 5 is fixed on detection table 2, the service life of travel switch 5 can be detected using test assembly 6.

[0018] Test assembly 6 is also connected to a driving force mechanism to provide power for its sliding in the transverse sliding slot 3.

[0019] As shown in Figure 2 and Figure 3 , test assembly 6 includes a detection plate 601, which is fixed to a reciprocating sliding block 602 through a connecting column 600. The connecting column 600 is located in the transverse sliding slot 3 and can slide along it. The reciprocating sliding block 602 is threadedly connected to a reciprocating lead screw 603. The reciprocating lead screw 603 is movably installed in the detection table 2 and is rotatably connected to the detection table 2. The reciprocating lead screw 603 is coaxially fixed to a first transmission shaft 604. The first transmission shaft 604 is provided with a first clutch 607, and the housing of the first clutch 607 is fixed in the detection table 2. The first transmission shaft 604 is fixed with a first driven bevel gear 608, which engages with a driving bevel gear fixed on a driving shaft 605. The driving shaft 605 is connected to the output shaft of a driving motor 606, and the driving motor 606 is fixed on the detection table 2.

[0020] In order to enable the clamping mechanism 7 to fix travel switches 5 of different sizes on the detection table 2, the following improvements are made:

[0021] As shown in Figure 2 and Figure 4 , four longitudinal sliding slots 4 are formed on the detection table 2. The clamping mechanism 7 includes four clamping blocks 704, which are respectively located in the four longitudinal sliding slots 4 and can slide therein. The driving bevel gear engages with a second driven bevel gear 609, which is fixed on a second transmission shaft 701. The second transmission shaft 701 is provided with a second clutch 702, and the housing of the second clutch 702 is fixed in the detection table 2. The end of the second transmission shaft 701 is fixed with a bevel gear 708, which engages with two oppositely arranged third driven bevel gears 703. Each third driven bevel gear 703 is fixed on a threaded lead screw half shaft 707. The threads on the threaded lead screw half shafts 707 have the same rotation direction. The threaded lead screw half shafts 707 are threadedly connected to a lead screw nut 706, which is fixedly installed with a U-shaped clamping frame 705. The two upper ends of the clamping frame 705 are fixedly installed with clamping blocks 704. When the bevel gear 708 rotates, the clamping frames 705 on both sides move away from each other or move closer to each other simultaneously.

[0022] In order to run stably, the lower surface of the clamping block 704 is in contact with the upper surface of the detection table 2.

[0023] The working principle is as follows:

[0024] S1, fix the workpiece: when in use, the travel switch 5 can be placed between the four clamping blocks 704 on the detection table 2. After the travel switch 5 is placed on the detection table 2, the second clutch 702 can be controlled to be combined. After the second clutch 702 is combined, the driving motor 606 can be started. After the driving motor 606 is started, it will drive the driving shaft 605 to rotate. After the driving shaft 605 rotates, it will drive the second transmission shaft 701 to rotate. After the second transmission shaft 701 rotates, it will drive the threaded lead screw 707 to rotate. After the threaded lead screw 707 rotates, it will drive the nut 706 to move forward and backward. After the nut 706 moves forward and backward, it will drive the clamping blocks 704 on the clamping frame 705 to move forward and backward, so that the clamping blocks 704 on both sides of the detection table 2 approach each other, and different sizes of travel switches 5 are clamped and fixed on the detection table 2. After the different sizes of travel switches 5 are fixed, the second clutch 702 can be controlled to be separated.

[0025] S2, detect the workpiece: control the first clutch 607 to be combined. After the first clutch 607 is combined, the first transmission shaft 604 can be driven to rotate through the driving shaft 605. After the first transmission shaft 604 rotates, it will drive the reciprocating lead screw 603 to rotate. After the reciprocating lead screw 603 rotates, it will drive the reciprocating slide block 602 to move forward and backward. After the reciprocating slide block 602 moves forward and backward, it will drive the detection plate block 601 to move forward and backward. After the detection plate block 601 moves forward and backward, it will continuously press the lever on the travel switch 5, so as to simulate the continuous work of the travel switch 5 driven by the external mechanical part, and the service life of the travel switch 5 can be detected.

[0026] S3, loosen the workpiece: refer to step S1, control the second clutch 702 to be combined, reverse the driving motor 606, and the clamping blocks 704 on the clamping frame 705 move forward and backward, so that the clamping blocks 704 on both sides of the detection table 2 move away from each other, and the travel switch 5 is loosened. The travel switch 5 can be taken away, and the detection is completed.

[0027] The characteristics of the present application are as follows:

[0028] S1, the driving motor can drive the first transmission shaft to rotate, and after the first transmission shaft rotates, it will drive the reciprocating lead screw to rotate, so as to drive the reciprocating slide block to move forward and backward, and after the reciprocating slide block moves forward and backward, it will drive the detection plate block to move forward and backward, so that the detection plate block continuously presses the lever on the travel switch, so as to simulate the continuous work of the travel switch driven by the external mechanical part, and the service life of the travel switch is detected.

[0029] S2, the second transmission shaft can be driven to rotate by the driving motor, the second transmission shaft rotates and drives the threaded screw rod to rotate, the screw nut moves forward and backward, thereby driving the clamping blocks on the clamping frame to move forward and backward, the clamping blocks on both sides of the detection table are close to each other, and the different size travel switches are fixed on the detection table, so that different size travel switches can be detected.

[0030] Other content can be found in the prior art.

[0031] The above only is the preferred, implementation manner of the utility model, it should be pointed out, for the person skilled in the art, without departing from the overall concept of the utility model, still can make a number of changes and improvements, these also should be regarded as the protection range of the utility model.

Claims

1. A travel switch detection tool, comprising a positioning base (1), a detection table (2) is fixedly installed on the positioning base (1), a transverse sliding groove (3) is formed in the detection table (2), a test assembly (6) is arranged on one side of the detection table (2), and the test assembly (6) can slide in the transverse sliding groove (3), characterized in that: The other side of the detection table (2) is provided with a clamping mechanism (7), through which the travel switch (5) can be fixed on the detection table (2), and after the travel switch (5) is fixed on the detection table (2), the service life of the travel switch (5) can be detected by using the test assembly (6); the test assembly (6) is also connected to a driving force mechanism, which provides power for its sliding in the transverse sliding groove (3). ​ 2. The travel switch detection tool of claim 1, wherein: The test assembly (6) comprises a detection plate block (601), the detection plate block (601) is fixed on the reciprocating sliding block (602) through the connecting column (600), the connecting column (600) is located in the transverse sliding groove (3) and can slide along the transverse sliding groove (3), the reciprocating sliding block (602) is threadedly connected with the reciprocating screw rod (603), the reciprocating screw rod (603) is movably installed in the detection table (2), the reciprocating screw rod (603) is rotatably connected to the detection table (2), the reciprocating screw rod (603) is coaxially fixed with the first transmission shaft (604), the first transmission shaft (604) is provided with the first clutch (607), the shell of the first clutch (607) is fixed in the detection table (2), the first transmission shaft (604) is fixed with the first driven bevel gear (608), the first driven bevel gear (608) is engaged with the driving bevel gear, the driving bevel gear is fixed on the driving shaft (605), the driving shaft (605) is connected to the output shaft of the driving motor (606), and the driving motor (606) is fixed on the detection table (2).

3. The travel switch detection tool of claim 2, wherein: Four longitudinal sliding grooves (4) are formed in the detection table (2), the clamping mechanism (7) comprises four clamping blocks (704), the four clamping blocks (704) are respectively located in the four longitudinal sliding grooves (4) and can slide in the four longitudinal sliding grooves (4), the driving bevel gear is engaged with the second driven bevel gear (609), the second driven bevel gear (609) is fixed on the second transmission shaft (701), the second transmission shaft (701) is provided with the second clutch (702), the shell of the second clutch (702) is fixed in the detection table (2), the end of the second transmission shaft (701) is fixed with the bevel gear (708), the bevel gear (708) is engaged with two oppositely arranged third driven bevel gears (703), each third driven bevel gear (703) is fixed on the threaded screw rod half shaft (707), the threads on the threaded screw rod half shafts (707) have the same rotation direction, the threaded screw rod half shafts (707) are threadedly matched with the screw nut (706), and the U-shaped clamping frame (705) is fixedly installed on the screw nut (706).

4. The travel switch detection tool of claim 3, wherein: The lower surface of the clamping block (704) is in contact with the upper surface of the detection table (2).

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