CN215726490U

CN215726490U - Elasticity value detection equipment for movable contact of pressure switch

Info

Publication number: CN215726490U
Application number: CN202122109850.3U
Authority: CN
Inventors: 申俊杰; 杜娟娟; 苗宏伟
Original assignee: Hebi Jinke Electric Appliance Co ltd
Current assignee: Hebi Jinke Electric Appliance Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-02-01
Anticipated expiration: 2031-09-02

Abstract

The utility model provides a detection device for the elastic value of a movable contact of a pressure switch, which comprises a bottom plate, wherein a longitudinal movement mechanism is arranged on the front side of the bottom plate, a switch fixing seat is arranged on the longitudinal movement mechanism through a supporting plate, a first air cylinder is arranged on the rear side of the bottom plate, and a conductive column is arranged at the telescopic shaft end of the first air cylinder; the left side and the right side of the bottom plate are provided with detection components, the detection components comprise transverse movement mechanisms and weighing sensors, the transverse movement mechanisms and the weighing sensors are arranged on the left side and the right side of the bottom plate, the weighing sensors are fixed above the transverse movement mechanisms through L-shaped supports, ejector rods are arranged on the front side faces of the weighing sensors, and the ejector rods can be just inserted into contact positions of moving and static contacts of a switch; the rear side of the first cylinder on the bottom plate is provided with a control box, the control box is provided with a touch display screen and a power knob switch, and one side of the bottom plate is provided with a control switch. This pressure switch movable contact elasticity value check out test set is according to the arrangement mode of pressure switch structure and inside sound contact, and a section of special design detects the frock, can carry out automated inspection to movable contact elasticity value, greatly improves work efficiency.

Description

Elasticity value detection equipment for movable contact of pressure switch

Technical Field

The utility model belongs to the technical field of pressure switch detection, and particularly relates to a device for detecting the elastic force value of a movable contact of a pressure switch.

Background

A pressure switch is a simple pressure control device that can give an alarm or control signal when the measured pressure reaches a rated value. Pressure switches can be classified into electronic pressure switches and mechanical pressure switches according to their operating principles, in which a movable contact and a stationary contact inside most of the mechanical pressure switches are normally closed, and when a pressure value acting on the switch reaches a predetermined value, the movable contact and the stationary contact are disconnected, and therefore, it is very important to measure the pressure value at the time of disconnection of such a pressure switch.

Disclosure of Invention

The utility model provides a device for detecting the elasticity value of a movable contact of a pressure switch, which is used for measuring the elasticity value of the movable contact of the pressure switch.

The technical scheme adopted by the utility model is as follows: a pressure switch movable contact elastic value detection device comprises a bottom plate, wherein a longitudinal movement mechanism is arranged on the front side of the bottom plate, a supporting plate is arranged above the longitudinal movement mechanism, a switch fixing seat is arranged on the front side of the supporting plate, a first air cylinder is arranged on the rear side of the bottom plate through a support, and a conductive column which can be communicated with a switch binding post is arranged at the telescopic shaft end of the first air cylinder; the left side and the right side of the bottom plate are provided with detection components, the detection components comprise transverse movement mechanisms and weighing sensors, the transverse movement mechanisms and the weighing sensors are arranged on the left side and the right side of the bottom plate, the weighing sensors are fixed above the transverse movement mechanisms through L-shaped supports, ejector rods are arranged on the front side faces of the weighing sensors, and the ejector rods can be just inserted into contact positions of moving and static contacts of a switch; the rear side of the first cylinder on the bottom plate is provided with a control box, the control box is provided with a touch display screen and a power knob switch, and one side of the bottom plate is provided with a control switch.

Preferably, the longitudinal movement mechanism comprises a first guide rail, a screw rod and a motor for driving the screw rod to rotate, the first guide rail is longitudinally arranged on the front side of the bottom plate in parallel, a sliding block is arranged on the first guide rail, the supporting plate is fixed to the tops of the two sliding blocks, the screw rod is positioned between the two first guide rails and is longitudinally arranged on the bottom plate through a front bearing seat and a rear bearing seat, a moving seat is arranged on the screw rod in a penetrating mode, and the moving seat is fixed to the bottom of the supporting plate.

Preferably, the longitudinal movement mechanism is provided with a limit bolt on both the front side and the rear side.

Preferably, the transverse movement mechanism comprises a second guide rail and a second cylinder arranged on one side of the second guide rail in parallel, a sliding block is arranged on the second guide rail, a top plate is arranged at the top of the sliding block, the telescopic shaft end of the second cylinder is fixedly connected with the front side face of the top plate through a connecting plate, the sliding block is driven to move back and forth through the telescopic movement of the second cylinder, and an L-shaped support used for fixing the weighing sensor is arranged on the rear side of the top plate.

Preferably, an inductive proximity switch is provided on the front side of the lateral movement mechanism, and a rubber plate is provided on the lateral movement mechanism at a position facing the inductive proximity switch.

Preferably, the conductive columns are provided with 2 groups, the upper conductive column and the lower conductive column form a group of loops, and the conducting wire of the upper conductive column is connected in series with an on-off switch.

Preferably, a protective cover is disposed over the detection assembly.

Compared with the prior art, the utility model has the beneficial effects that: this pressure switch movable contact elasticity value check out test set is according to the arrangement mode of pressure switch structure and inside sound contact, and a section of special design detects the frock, can carry out automated inspection to movable contact elasticity value, greatly improves work efficiency.

Drawings

Fig. 1 is a schematic structural view of the movable and stationary contact assembly.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural diagram of components on the base plate.

In the figure: 1. a movable contact; 2. a stationary contact; 3. a base plate; 4. a longitudinal movement mechanism; 5. a support plate; 6. a switch fixing seat; 7. a first cylinder; 8. a conductive post; 9. an on-off switch; 10. a lateral movement mechanism; 11. a weighing sensor; 12. an L-shaped bracket; 13. a fork-shaped member; 14. a top rod; 15. a control box; 16. a touch display screen; 17. a power supply knob switch; 18. a control switch; 19. a limit bolt; 20. an inductive proximity switch; 21. a rubber plate; 22. a protective cover; 1-1, moving contact silver point; 1-2, static contact silver points; 4-1, a first guide rail; 4-2, a screw rod; 4-3, a motor; 10-1, a second guide rail; 10-2, a second cylinder; 10-3 and a connecting plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described below with reference to specific embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The utility model relates to a pressure switch movable contact elastic value detection device, which is used for realizing the elastic value detection of a movable contact of a pressure switch, the pressure switch utilizes a shell body to fix the movable contact and a fixed contact, therefore, after the movable contact and the fixed contact are assembled, the assembled pressure switch assembly is put into a switch fixing seat of the device to complete the detection, after the pressure switch is placed on the switch fixing seat, the movable contact and the fixed contact are structurally arranged as shown in figure 1, the movable contact 1 is positioned above the fixed contact 2, the lower part of the movable contact 1 is arranged close to the left side of the fixed contact 2, the contact positions of the movable contact and the fixed contact are respectively provided with a movable contact silver point 1-1 and a fixed contact silver point 1-2, the upper part of the movable contact is provided with a through hole connected with a line terminal, the right side of the fixed contact is provided with a through hole connected with a load terminal, and a conductive column is respectively inserted into and connected with the terminal column during the detection, and the circuit conduction in the switch is realized. One or two groups of moving contacts and fixed contacts can be selectively arranged in the pressure switch, and one moving contact corresponds to one fixed contact.

Specifically, this check out test set includes bottom plate 3, is provided with longitudinal movement mechanism 4 in the front side of bottom plate, is provided with layer board 5 above longitudinal movement mechanism 4, is provided with switch fixing base 6 in layer board 5 front side, drives switch fixing base vertical reciprocating motion through longitudinal movement mechanism. The switch fixing seat mainly adapts to the appearance structure of the pressure switch, realizes the function of fixing the pressure switch, comprises a positioning plate and limiting plates arranged on the left side and the right side of the front of the positioning plate, and is provided with a yielding through groove between the positioning plate and the limiting plates.

Be provided with first cylinder 7 through the support in 3 rear sides of bottom plate, it can lead electrical pillar 8 with the switch terminal to be linked together to set up at the flexible axle head of first cylinder, should lead and be connected with the wire on the electrical pillar, two wire columns are a set of, link to each other with the switch terminal and constitute closed circuit, consider that the interior sound contact structure of pressure switch arranges, it is a set of return circuit to go up and down the terminal, consequently will lead electrical pillar design into a set of return circuit from top to bottom, it leads electrical pillar to have 2 groups to arrange about in this embodiment, it is linked together with the switch terminal to lead electrical pillar forward motion, realize that the circuit switches on. In addition, the on-off switch 9 is connected in series on the conducting wire of the upper conducting column and is arranged above the first cylinder through the support plate, and the on-off switch on one side without the movable and static contacts can be closed mainly when only one group of movable and static contacts are arranged in the pressure switch, so that the whole detection result is not influenced.

Be provided with the determine module in the left and right sides of bottom plate 3, this determine module is including setting up the transverse movement mechanism 10 in the bottom plate left and right sides, weighing sensor 11, weighing sensor is balanced beam type weighing sensor, adopt the parallel optimal design of diplopore, can one end be fixed, one end is measured, weighing sensor 10 fixes in transverse movement mechanism top through L type support 12, can be close to or keep away from along with the transverse movement mechanism motion, the vertical setting of its stress surface, front surface at weighing sensor is provided with fork type spare 13, the stress surface at load-bearing sensor is fixed to this fork type spare, its front end is provided with ejector pin 14, this ejector pin can insert switch sound contact position just forward.

A control box 15 is arranged on the rear side of a first cylinder on a bottom plate, a touch display screen 16, a power knob switch 17, an indicator light and an emergency stop button are arranged on the surface of the control box 15, a control panel is arranged in the control box 15, the power knob switch is used for starting detection equipment, and the touch display screen can be used for directly setting the interval value of the elastic force of the movable contact. A control switch 18 is arranged on one side of the bottom plate and is used for controlling the actions of the longitudinal movement mechanism, the transverse movement mechanism and the first air cylinder to realize the measurement of the weighing sensor, the pressure switch is placed in the switch fixing seat, the control switch is started, the first air cylinder and the transverse movement mechanism act, the first air cylinder drives the conductive columns to be inserted into a switch binding post to realize the circuit communication, the transverse movement mechanism drives the ejector rods to be inserted into the contact positions of the moving and static contacts of the switch, then the longitudinal movement mechanism acts to drive the pressure switch to move forwards, at the moment, the static contacts do not move, the movable contacts move forwards, the ejector rods can be subjected to the pressure exerted by the movable contacts, the pressure can be measured by the weighing sensor, when the moving and static contacts are separated (namely, the silver points are separated), the circuit is disconnected, and the pressure value measured by the weighing sensor at the moment is the elastic value of the movable contacts; the elastic force values of the movable contact are displayed through the touch display screen, if the two elastic force values are in corresponding intervals, the indicating lamp is displayed in green, and if a certain elastic force value is not in the corresponding interval, the indicating lamp is displayed in red; then the conductive column and the ejector rod exit, the longitudinal movement mechanism drives the pressure switch to return until the movable contact and the static contact, and the circuit stops when being switched on to wait for the next group of commands.

In this embodiment, the longitudinal movement mechanism 4 includes first guide rails 4-1, a lead screw 4-2, and a motor 4-3 for driving the lead screw to rotate, the first guide rails are longitudinally arranged in parallel on the front side of the bottom plate, a slider is arranged on the first guide rails, the support plate 5 is fixed on the top of the two sliders, the lead screw 4-2 is located between the two first guide rails 4-1 and is longitudinally arranged on the bottom plate through a front bearing seat and a rear bearing seat, a moving seat is arranged on the lead screw in a penetrating manner, the moving seat is a lead screw nut and a nut seat and is fixed on the bottom of the support plate, and the motor drives the lead screw to rotate, so that the moving seat drives the support plate to move forward or backward along the first guide rails. Consider the design that integrates as far as possible, place driving motor and rear bearing frame in the support below of first cylinder, the front bearing frame is placed between first guide rail, raises first guide rail simultaneously.

Meanwhile, the front side and the rear side of the longitudinal movement mechanism are provided with limiting bolts 19 through support arms, so that the sliding block is prevented from being separated from the first guide rail when out of control.

In this embodiment, the transverse movement mechanism 10 includes a second guide rail 10-1, a second cylinder 10-2 disposed side by side on one side of the second guide rail, a slider is disposed on the second guide rail, a top plate is disposed on the top of the slider, a telescopic shaft end of the second cylinder is fixedly connected to a front side surface of the top plate through a connecting plate 10-3, the slider is driven to move back and forth by the telescopic movement of the second cylinder, an L-shaped bracket 12 for fixing a weighing sensor is disposed on a rear side of the top plate, the weighing sensor is fixed on a vertical surface of the L-shaped bracket, a stress surface of the weighing sensor is vertically disposed, and a top rod on the front side surface of the weighing sensor is inserted into or withdrawn from a contact position of a moving contact and a stationary contact of a switch through the telescopic movement of the second cylinder.

In addition, the detection device can also count the number of the detected pressure switches, specifically, an inductive proximity switch 20 is arranged at the front side of the transverse movement mechanism, and a rubber plate 21 is arranged at the opposite position of the transverse movement mechanism and the inductive proximity switch and is arranged at one side of the sliding block. The inductive proximity switch belongs to a non-contact switch, a detection area is positioned in front of the inductive proximity switch, a detected object must be a metal object, no action is performed on a non-metal object, when a supporting plate does not act, an induction head of the inductive proximity switch is over against a rubber plate, the inductive proximity switch cannot detect the object, when the rubber plate moves forwards for a certain distance along with a longitudinal running mechanism, the induction head of the inductive proximity switch is over against a guide rail, the guide rail is a metal part, when the inductive proximity switch senses and detects metal, a signal is output to a control panel, counting is achieved, the counting is displayed through a display screen, or a counter is connected and displayed through the counter.

Meanwhile, a protective cover 22 is arranged above the detection assembly and is mainly used for protecting the weighing sensor and preventing the weighing sensor from being damaged by falling objects.

The working principle of the elastic force value detection equipment for the movable contact of the pressure switch is as follows: turning on a power supply knob switch, setting an interval value of the elasticity of a movable contact through a touch display screen, putting the pressure switch into the pressure switch, starting a control switch, enabling a first air cylinder and a transverse movement mechanism to act, enabling the first air cylinder to drive a conductive column to be inserted into a switch binding post to realize circuit communication, enabling an ejector rod to be inserted into a contact position of a movable contact and a fixed contact of the switch, enabling a longitudinal movement mechanism to act to drive the pressure switch to move forwards, enabling a fixed contact to be fixed, enabling the movable contact to move forwards, enabling the ejector rod to be subjected to pressure applied by the movable contact, enabling the pressure to be measured by a weighing sensor, disconnecting the circuit when the movable contact and the fixed contact are separated, and enabling a pressure value measured by the weighing sensor at the moment to be an elasticity value of the movable contact; the elastic force values of the movable contact are displayed through the touch display screen, if the two elastic force values are in corresponding intervals, the indicating lamp is displayed in green, and if a certain elastic force value is not in the corresponding interval, the indicating lamp is displayed in red; then the conductive column and the ejector rod exit, the longitudinal movement mechanism drives the pressure switch to return until the movable contact and the static contact, the circuit is connected, the circuit is stopped, and the next group of commands are waited.

Claims

1. The utility model provides a pressure switch movable contact elasticity value check out test set which characterized in that: the switch comprises a bottom plate, wherein a longitudinal movement mechanism is arranged on the front side of the bottom plate, a supporting plate is arranged above the longitudinal movement mechanism, a switch fixing seat is arranged on the front side of the supporting plate, a first air cylinder is arranged on the rear side of the bottom plate through a support, and a conductive post which can be communicated with a switch binding post is arranged at the telescopic shaft end of the first air cylinder; the left side and the right side of the bottom plate are provided with detection components, the detection components comprise transverse movement mechanisms and weighing sensors, the transverse movement mechanisms and the weighing sensors are arranged on the left side and the right side of the bottom plate, the weighing sensors are fixed above the transverse movement mechanisms through L-shaped supports, ejector rods are arranged on the front side faces of the weighing sensors, and the ejector rods can be just inserted into contact positions of moving and static contacts of a switch; a control box is arranged on the rear side of the first cylinder on the bottom plate, a touch display screen is arranged on the control box, and a control switch is arranged on one side of the bottom plate.

2. The pressure switch moving contact elasticity value detecting device as claimed in claim 1, wherein: the longitudinal movement mechanism comprises first guide rails, a screw rod and a motor used for driving the screw rod to rotate, the first guide rails are longitudinally arranged on the front side of the bottom plate in parallel, sliding blocks are arranged on the first guide rails, the supporting plate is fixed to the tops of the two sliding blocks, the screw rod is located between the two first guide rails and is longitudinally arranged on the bottom plate through front and rear bearing seats, a moving seat is arranged on the screw rod in a penetrating mode, and the moving seat is fixed to the bottom of the supporting plate.

3. The pressure switch movable contact elasticity value detecting apparatus as claimed in claim 1 or 2, wherein: and the front side and the rear side of the longitudinal movement mechanism are both provided with limiting bolts.

4. The pressure switch moving contact elasticity value detecting device as claimed in claim 1, wherein: the transverse movement mechanism comprises a second guide rail and second cylinders arranged on one side of the second guide rail in parallel, a sliding block is arranged on the second guide rail, a top plate is arranged at the top of the sliding block, the telescopic shaft end of the second cylinder is fixedly connected with the front side face of the top plate through a connecting plate, the sliding block is driven to move back and forth through the telescopic movement of the second cylinder, and an L-shaped support used for fixing the weighing sensor is arranged on the rear side of the top plate.

5. The pressure switch movable contact elasticity value detecting apparatus as claimed in claim 1 or 4, wherein: an inductance type proximity switch is arranged on the front side of the transverse movement mechanism, and a rubber plate is arranged on the transverse movement mechanism opposite to the inductance type proximity switch.

6. The pressure switch moving contact elasticity value detecting device as claimed in claim 1, wherein: the conducting posts are provided with 2 groups, the upper conducting post and the lower conducting post form a group of loops, and the conducting wires of the upper conducting posts are connected with an on-off switch in series.

7. The pressure switch moving contact elasticity value detecting device as claimed in claim 1, wherein: a protective cover is arranged above the detection assembly.