CN211347331U

CN211347331U - Automatic parameter measuring device for electromagnetic relay

Info

Publication number: CN211347331U
Application number: CN201921747004.0U
Authority: CN
Inventors: 林罗豪; 方旭; 彭碧辉; 陈海多; 朱军; 黄晓湖; 虞彭鑫; 刘小龙
Original assignee: Zhejiang Meishuo Electric Technology Co ltd
Current assignee: Zhejiang Meishuo Electric Technology Co ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-08-25
Anticipated expiration: 2029-10-17

Abstract

The utility model discloses an automatic measuring device for electromagnetic relay parameters, which consists of a bottom plate, a measuring component, a clamping component, a servo motor and a control box, wherein the measuring component and the clamping component are sequentially arranged on the bottom plate from left to right; the measuring component is a mechanical and distance measuring component which is arranged in parallel, when an ejector pin of the mechanical measuring instrument is just connected with a touch reed and the end face of a measuring head of the distance measuring instrument just contacts with a baffle, the control box sends an instruction that the measuring instrument is completely reset to zero, then a servo motor is started to drive the measuring rod to move, and further the ejector pin is driven to eject the movable reed, when the movable contact and the fixed contact just contact, the servo motor stops working, and the numerical value corresponding to the distance and the mechanical measuring instrument at the moment is the ejecting distance and the counter force of the movable reed. The utility model provides a measuring device, overall structure is succinct, measures accurate, convenient, easy operation, and is efficient, can realize automated inspection.

Description

Automatic parameter measuring device for electromagnetic relay

Technical Field

The utility model relates to a detection device, concretely relates to electromagnetic relay parameter automatic measuring device belongs to electrical equipment technical field.

Background

In the design and development process of the relay, reasonable setting of various technical parameters is very important and critical, wherein the counter force parameters of the movable spring piece, namely the rebound distance and the rebound force, directly determine the setting, material selection, shell size and the like of the movable spring piece and the fixed spring piece of the relay according to the counter force parameters.

The traditional counter force parameter testing method is to utilize a mechanical measuring instrument to test the amount of the counter force of a movable spring when a movable contact and a fixed contact are opened and closed, one person is responsible for opening and closing control of the movable contact and the fixed contact when a relay is powered on and powered off, one person holds the mechanical measuring instrument to test the separation of the movable contact and the fixed contact, the counter force of the movable spring is large, the human factor of the operation is very large, the controllability is not high, the counter force distance is estimated through visual measurement, accurate numerical values cannot be obtained, and therefore the traditional measuring method is low in measuring accuracy, large in difficulty, long in consumed time and inconvenient to operate.

Disclosure of Invention

The utility model provides an electromagnetic relay parameter automatic measuring device, by bottom plate, measuring component and clamping component, the device overall structure is succinct, measures accurate, convenient, easy operation, efficient, can fine satisfy actual detection's needs.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an electromagnetic relay parameter automatic measuring device which characterized in that: the device comprises a bottom plate, a measuring assembly, a clamping assembly, a servo motor and a control box, wherein the measuring assembly and the clamping assembly are sequentially and transversely arranged on the bottom plate at intervals from left to right; an upper clamping block and a lower clamping block are arranged on the clamp, and a relay to be measured is clamped between the two clamping blocks; the mechanical and distance measuring assembly is arranged in parallel, wherein the mechanical measuring assembly is fastened on the bottom plate through an installation block, a sliding rail is fixed on the installation block, a mechanical measuring assembly box is installed on the sliding rail and moves left and right along the transverse direction of the sliding rail, a mechanical measuring instrument is placed in the mechanical measuring assembly box and slides left, when a measuring thimble abuts against a movable contact spring of the tested relay, the counter force of the tested movable contact spring is automatically displayed on a panel of the mechanical measuring instrument; the distance measuring device is fastened on the bottom plate through a fixing seat of the distance measuring component, a servo motor is arranged near the distance measuring device, and the servo motor achieves fine adjustment of the distance measuring device through a rotating mechanism; the upper and lower, left and right positions of the clamping block are adjusted to enable the top point of the mechanical measuring instrument to be just contacted with the movable reed, the end face of the measuring head of the distance measuring instrument is just contacted with the baffle, at the moment, the control box sends an instruction for enabling the distance measuring instrument and the mechanical measuring instrument to return to zero, then, the control box sends an instruction for enabling the servo motor to act, the servo motor drives the rotating mechanism to rotate, the measuring rod of the distance measuring instrument moves, the dynamic measuring instrument is further driven to move, the movable reed is jacked, when the movable contact and the fixed contact are just contacted, the servo motor stops working, the control box stores the measuring data of the corresponding distance measuring instrument and the corresponding mechanical measuring instrument at the moment, and the numerical values.

The utility model relates to an automatic parameter measuring device of an electromagnetic relay, wherein a mechanical measuring component box is a rectangular box, wherein a side plate on the left side extends forwards to form a baffle which is matched with the end face of a measuring head of a distance measuring instrument; the mechanical measuring assembly box is characterized in that a sliding groove is formed in the bottom of the mechanical measuring assembly box, the sliding groove is matched with the sliding rail fixed on the bottom plate, two positioning holes are formed in the other side plate opposite to the baffle plate, the mechanical measuring instrument is fixed in the mechanical measuring assembly box through two positioning bolts, and the mechanical measuring instrument is kept not to move back and forth or left and right in the mechanical measuring assembly box; the mechanical measuring instrument is provided with an automatic digital display device for measured data, and is convenient to use.

The utility model relates to an electromagnetic relay parameter automatic measuring device, wherein the fixing base of distance measuring subassembly is an "L" type right angle fixing base, the horizontal segment is a rectangular plate, through the bolt with the bottom plate fastening together, the top of vertical segment is a semicircular structure, the centre is equipped with a circular mounting hole, through the fastening device fixed mounting the distance measuring apparatus, adopt this kind of right angle fixing base, can ensure levelness and straightness that hangs down, measure accurately, the error is little; the distance measuring instrument is provided with a linear measuring rod and an automatic digital display device for measured data, and is convenient to use.

The utility model relates to an automatic parameter measuring device of an electromagnetic relay, wherein a clamping component consists of a slide rail, a slide block, a mounting seat and a clamp, wherein the slide block is a rectangular strip with a chute in the middle and is matched with the slide rail; two strip-shaped adjusting holes are formed in the positioning plate, the positioning plate and the sliding block can be fastened in the strip-shaped adjusting holes through bolts, the mounting seat and the sliding block can be fixed, and meanwhile displacement adjustment of the mounting seat on the sliding block in the front-back direction can be achieved; two positioning holes are formed in the mounting wall of the mounting seat, the upper position and the lower position of the clamp on the fixing plate are positioned through bolts of the positioning holes, a sliding groove is formed in one surface, matched with the fixing plate, of the mounting wall, and the clamp can slide up and down on the mounting wall

The utility model relates to an electromagnetic relay parameter automatic measuring device, wherein anchor clamps include fixed plate, guide pillar installation piece, guide pillar, clamping block, adjusting bolt, reset spring, fitting pin and briquetting, wherein the fixed plate is the rectangular plate of a H type structure, wherein with the installation wall the spout corresponding one side front and back have two draw runner to block in the spout, realize the reciprocating of anchor clamps, the fixed plate upper and lower both ends symmetry is equipped with a pair of rectangle constant head tank, is used as location installation guide pillar installation piece, guide pillar installation piece passes through the bolt fastening at the fixed plate upper and lower both ends, is equipped with a rectangle rectangular shape locking band between two constant head tanks, is equipped with the sawtooth on the locking band; a left circular guide pillar and a right circular guide pillar are fixed between an upper guide pillar mounting block and a lower guide pillar mounting block, a clamping block is inserted on the two guide pillars and can slide up and down, a pressing block is fixed on a mounting surface of the clamping block through a bolt, the pressing block is a rectangular block, a screw hole is formed in the center of the pressing block and matched with the adjusting bolt, a secondary step hole is formed in the clamping block, the hole diameter is gradually reduced from top to bottom, the first step hole is a counter bore with a large diameter and used for mounting a locking pin with a reset spring, the second step hole is a through hole with a small diameter, a pin can penetrate through the through hole and is matched and locked with sawteeth of a locking belt of the fixing plate to achieve positioning, and a groove is formed.

The utility model relates to an electromagnetic relay parameter automatic measuring device, wherein the screw diameter on the briquetting is less than the diameter of the first step hole of the clamping block, when the adjusting bolt is screwed down, the bolt passes through the screw and enters the first step hole top pressure locking pin; the diameter of the pin cap of the locking pin is smaller than that of the first stepped hole but larger than that of the screw hole and the inner diameter of the reset spring, the reset spring is sleeved on the pin, and when the adjusting bolt is unscrewed, the locking pin is reset by the elasticity of the reset spring and cannot eject out of the first stepped hole; the diameter of the second stepped hole is smaller than that of the first stepped hole and smaller than that of the return spring, so that the return spring is prevented from entering the second stepped hole; the diameter of the second stepped hole is slightly larger than that of the locking pin, so that the locking pin can freely move up and down in the second-stage stepped hole.

An electromagnetic relay parameter automatic measuring device, wherein the pin terminal surface of fitting pin is a slope type structure, this slope type structure with the sawtooth structure in locking area is unanimous, adjusting bolt screws, and adjusting bolt roof pressure fitting pin, the fitting pin removes, and when the fitting pin bottom and the sawtooth contact cooperation in locking area, press from both sides tight piece with the dead location of fixed plate lock, when unscrewing adjusting bolt, reset spring resilience that resets drives the fitting pin removes, with the fixed plate separately, press from both sides tight piece and can do on the guide pillar and reciprocate, realize the fine setting of direction from top to bottom.

An electromagnetic relay parameter automatic measuring device, wherein be equipped with arch or sawtooth on the fastening face of pressing from both sides tight piece and relay contact, the convenient tight product of clamp firmly avoids the smooth surface scheduling problem of skidding that probably causes.

The utility model discloses an electromagnetic relay parameter automatic measuring device, by bottom plate, measuring assembly, clamping assembly, servo motor and control box composition, wherein clamping assembly realizes the firm centre gripping to the measured relay, parallel arrangement's mechanical measuring apparatu and distancer, utilize the measuring stick of distancer to move the synchronous operation of taking the dynamics measuring apparatu, two instruments set up to the zero state at the natural state that the sound contact breaks off, when the thimble roof pressure movable contact spring of mechanical measuring apparatu until the sound contact combines, the data of distancer is exactly the rebound distance of animation piece, and the data of mechanical measuring apparatu is exactly the size of bounce this moment, it is accurate to test, swift, easy operation; because the automatic control of the servo motor and the control box degree distance measuring instrument is adopted, the device is more convenient to operate.

The utility model provides an electromagnetic relay parameter automatic measuring device, wherein the motor adopts servo motor, can realize right as required the accurate rotation regulation of measuring stick, control is more accurate.

The utility model discloses a relay parameter measuring device, wherein the clamping component is provided with a slide rail, the mounting base is fixed on the slide block, and the requirements of measuring sizes of products with different models are met through the back-and-forth movement of the slide block on the slide rail; the positioning plate is provided with an adjusting hole, so that the distance of the mounting seat on the sliding block in the front-back direction can be adjusted, and the size adjustment of the mounting seat in the front-back direction is further improved, namely secondary fine adjustment; in the up-down direction, the sliding groove of the mounting seat is matched with the sliding strip on the fixed plate, so that the large displacement adjustment in the up-down direction is realized; through the clamping block moves up and down on the guide rail, the clamping block is further finely adjusted up and down in the position range of the fixed seat, and the adjustment requirement of product measurement can be better met.

The present invention will be further described with reference to the accompanying drawings.

Drawings

Figure 1 the working principle of the measuring device according to the embodiment of figure 1 is shown in figure 1 (return to zero state).

Fig. 2 shows the working principle of the measuring device in the embodiment of fig. 2 (the dynamic and static contact points are combined).

Fig. 3 is an exploded view of the embodiment of the clamp.

Fig. 4 is a schematic view of the locking and positioning structure of the clamping block and the fixing plate in the embodiment.

In the figure: 1, 2 mechanical measuring components, 21 mounting blocks, 22 sliding rails, 23 mechanical measuring component boxes, 24 baffles, 25 positioning holes, 26 mechanical measuring instruments, 261 thimbles, 262 automatic digital display devices, 3 distance measuring components, 31 distance measuring instruments, 311 measuring rods, 312 automatic digital display devices, 32 fixed seats, 321 mounting holes, 4 sliding rails, 5 sliding blocks, 6 mounting seats, 61 positioning plates, 611 adjusting holes, 62 mounting walls, 621 sliding chutes, 7 clamps, 71 fixed plates, 711 sliding strips, 712 locking belts, 7121 sawteeth, 72 guide pillar mounting blocks, 73 guide pillars, 74 clamping blocks, 741 grooves, 742 secondary stepped holes, 743 fastening surfaces, 75 adjusting bolts, 76 reset springs, 77 locking pins, 78 pressing blocks, 8 relays, 81 movable springs, 82 movable contacts, 83 stationary contacts, 9 control boxes and 10 servo motors.

Detailed Description

The embodiment provides an automatic measuring device for parameters of an electromagnetic relay, which comprises a base plate 1, a measuring assembly and a clamping assembly, and is simple in overall structure, accurate and convenient in measurement, simple in operation, high in efficiency and capable of well meeting the requirement of actual detection.

As shown in fig. 1 and 2, the automatic measuring device for parameters of an electromagnetic relay in the present embodiment is composed of a base plate 1, a measuring assembly, a clamping assembly, a servo motor 10 and a control box 9, wherein the measuring assembly and the clamping assembly are sequentially and transversely arranged on the base plate 1 at intervals from left to right, a sliding rail 4 of the clamping assembly is fastened at the left end of the base plate 1, a sliding groove 5 is arranged on the sliding rail 4, a mounting seat 6 is fixed on the sliding groove 5, a clamp 7 is inserted on the mounting seat 6, and the clamp 7 can move up and down on the mounting seat 6; 7, an upper 74 clamping block and a lower 74 clamping block are arranged on the clamp, and the relay to be measured 8 is clamped between the two 74 clamping blocks; the measuring assembly comprises a 2 mechanical measuring assembly and a 3 distance measuring assembly, wherein the 2 mechanical measuring assembly is fastened on a base plate 1 through a 21 mounting block, a 22 slide rail is fixed on the 21 mounting block, a 23 mechanical measuring assembly box is mounted on the 22 slide rail and moves left and right along the 22 slide rail in the transverse direction, a 26 mechanical measuring instrument is placed in the 23 mechanical measuring assembly box, the 26 mechanical measuring instrument slides leftwards, when a measuring thimble 261 props against an 81 movable contact spring of a tested 8 relay, the counter force of the tested 81 movable contact spring is automatically displayed on a panel of the 26 mechanical measuring instrument; the 3 distance measuring assemblies are transversely arranged in parallel with the 2 mechanical measuring assemblies, wherein the 31 distance measuring instrument is fastened on the 1 bottom plate through 32 fixing seats of the 3 distance measuring assemblies; a 10 servo motor is arranged near the 31 distance measuring instrument, and the 10 servo motor realizes the fine adjustment of the 31 distance measuring instrument through a rotating mechanism; adjusting 74 the vertical and horizontal positions of the clamping block to enable the needle top point of the 26 mechanical measuring instrument 261 to be just contacted with the 81 movable spring, enabling the end face of the measuring head of the 31 distance measuring instrument to be just contacted with the 24 baffle, enabling the 9 control box to send an instruction for enabling the 31 distance measuring instrument and the 26 mechanical measuring instrument to be reset to zero, enabling the 9 control box to send an instruction for enabling the 10 servo motor to act, enabling the 10 servo motor to drive the rotating mechanism to rotate the 311 measuring rod of the 31 distance measuring instrument to move, further driving the 26 mechanical measuring instrument to move, and enabling the 81 movable spring to be pushed, enabling the 10 servo motor to stop working when the 82 movable contact is just contacted with the 83 static contact, enabling the 9 control box to store the corresponding measured data of the 31 distance measuring instrument and the 26 mechanical measuring instrument at the moment, wherein the numerical values are.

In the automatic measuring device for parameters of an electromagnetic relay according to this embodiment, the 23 mechanical measuring component box is a rectangular box, wherein the left side plate is extended forward to form a 24-way plate, which is matched with the end face of the measuring head of the 31 distance measuring instrument; a sliding groove is arranged at the bottom of the 23 mechanical measurement component box and is matched with the 22 sliding rails fixed on the bottom plate 1, two 25 positioning holes are arranged on the other side plate opposite to the 24 baffle, the 26 mechanical measurement instrument is fixed in the 23 mechanical measurement component box through two positioning bolts, and the 26 mechanical measurement instrument is kept not to move back and forth or left and right in the 23 mechanical measurement component box; the 26 mechanical measuring instrument is provided with an automatic digital display device for measuring data 262, and is convenient to use.

In the automatic measuring device for the parameters of the electromagnetic relay, 32 fixed seats of the 3 distance measuring assemblies are L-shaped right-angle fixed seats, the horizontal section is a rectangular plate and is fastened with the base plate 1 through bolts, the top of the vertical section is of a semicircular structure, a circular 321 mounting hole is formed in the middle of the vertical section, and the 31 distance measuring instrument is fixedly mounted through a fastening device; the 31-distance measuring instrument is provided with a linear 311 measuring rod and an automatic digital display device for measuring data 312, and is convenient to use.

In the automatic measuring device for the parameters of the electromagnetic relay, the clamping assembly is composed of 4 sliding rails, 5 sliding blocks, 6 mounting seats and 7 clamps, wherein the 5 sliding blocks are rectangular long strips with sliding grooves in the middle and are matched with the 4 sliding rails; the 6-installation seat consists of a 61-positioning plate and a 62-installation wall, wherein two strip-shaped 611 adjusting holes are formed in the 61-positioning plate, a bolt can fasten the 61-positioning plate and the 5-sliding block in the strip-shaped 611 adjusting holes, so that the 6-installation seat and the 5-sliding block can be fixed, and meanwhile, the 6-installation seat can be displaced and adjusted on the 5-sliding block in the front-back direction; two positioning holes are formed in the 62 mounting wall of the 6 mounting seat, the upper position and the lower position of the 7 clamp on the 71 fixing plate are positioned through bolts of the positioning holes, 621 sliding grooves are formed in the surfaces, matched with the 71 fixing plate, of the 62 mounting wall, and the 7 clamp can slide up and down on the 62 mounting wall.

As shown in fig. 3 and 4, the automatic parameter measuring device for an electromagnetic relay according to this embodiment includes a fixing plate 71, a guide pillar 72 mounting block 72, a guide pillar 73, a clamping block 74, an adjusting bolt 75, a return spring 76, a locking pin 77, and a pressing block 78, wherein the fixing plate 71 is a rectangular plate with an H-shaped structure, two 711 sliding bars are clamped in the 621 sliding groove of the mounting wall 62 at the front and back of one surface corresponding to the 621 sliding groove to achieve up-and-down movement of the fixing plate 7, a pair of rectangular positioning grooves are symmetrically formed at the upper and lower ends of the fixing plate 71 for positioning and mounting the guide pillar 72 mounting block, the guide pillar 72 mounting block is fixed at the upper and lower ends of the fixing plate 71 by bolts, a rectangular long strip 712 locking strip is formed between the two positioning grooves, and 7121 serrations; a round 73 guide post is fixed between an upper 72 guide post mounting block and a lower 72 guide post mounting block respectively on the left and right, a 74 clamping block is inserted on two 73 guide posts and can slide up and down, a 78 pressing block is fixed on a mounting surface of the 74 clamping block through a bolt, the 78 pressing block is a rectangular block, the center of the 78 pressing block is provided with a screw hole and is matched with the 75 adjusting bolt, a 742 secondary stepped hole is arranged in the 74 clamping block, the hole diameter is gradually reduced from top to bottom, the first stepped hole is a counter bore with a larger diameter and is used for mounting a 77 locking pin with a 76 return spring, the second stepped hole is a through hole with a smaller diameter, and a pin can penetrate through the through hole and is matched and locked with a sawtooth of; the bottom of the 74 clamping block is provided with a groove 741 which is matched with the 712 locking belt of the 71 fixing plate.

In the automatic parameter measuring device for the electromagnetic relay, in this embodiment, the diameter of the screw hole on the 78 pressing block is smaller than the diameter of the first stepped hole of the 74 clamping block, and when the adjusting bolt is tightened 75, the bolt passes through the screw hole and enters the first stepped hole to press 77 the locking pin; the diameter of the pin cap of the 77 locking pin is smaller than that of the first stepped hole but larger than the diameter of the screw hole and the inner diameter of the 76 return spring, the 76 return spring is sleeved on the pin, and when the 75 adjusting bolt is unscrewed, the 77 locking pin is reset by the elasticity of the 76 return spring and cannot be ejected out of the first stepped hole; the diameter of the second stepped hole is smaller than that of the first stepped hole and smaller than that of the 76 return spring, so that the 76 return spring cannot enter the second stepped hole; the diameter of the second stepped hole is slightly larger than the diameter of the pin of the 77 locking pin, so that the 77 locking pin can freely move up and down in the secondary stepped hole.

This embodiment an electromagnetic relay parameter automatic measuring device, wherein the pin terminal surface of 77 fitting pin is a slope type structure, this slope type structure with the 7121 sawtooth structure in 712 locking area is unanimous, screws 75 adjusting bolt, and 77 fitting pin of adjusting bolt roof pressure 77 fitting pin, 77 fitting pin remove, and 7121 sawtooth contact cooperation in 77 fitting pin bottom and 712 locking area, 74 press from both sides tight piece with 71 fixed plate lock die location, when unscrewing 75 adjusting bolt, 76 reset spring resilience that resets drives 77 fitting pin removes, with 71 fixed plate parts, 74 press from both sides tight piece and can do on 73 guide pillars and reciprocate, realize the fine setting of direction from top to bottom.

This embodiment an electromagnetic relay parameter automatic measuring device, wherein be equipped with arch or sawtooth on the 743 fastening face of 74 clamp tight piece and 8 relay contacts, the convenient tight product of clamp firmly avoids the smooth surface scheduling problem that skids that probably causes.

This embodiment is used for the purpose of illustration only, and is not intended to limit the present invention, and those skilled in the art can also make corresponding deformation and modification within the scope of the present invention, so that any equivalent embodiments all belong to the scope of the present invention.

Claims

1. The utility model provides an electromagnetic relay parameter automatic measuring device which characterized in that: the device comprises a bottom plate, a measuring assembly, a clamping assembly, a servo motor and a control box, wherein the measuring assembly and the clamping assembly are sequentially and transversely arranged on the bottom plate at intervals from left to right; an upper clamping block and a lower clamping block are arranged on the clamp, and a relay to be measured is clamped between the two clamping blocks; the mechanical and distance measuring assembly is arranged in parallel, wherein the mechanical measuring assembly is fastened on the bottom plate through an installation block, a sliding rail is fixed on the installation block, a mechanical measuring assembly box is installed on the sliding rail and moves left and right along the transverse direction of the sliding rail, a mechanical measuring instrument is placed in the mechanical measuring assembly box and slides left, when a measuring thimble abuts against a movable contact spring of the tested relay, the counter force of the tested movable contact spring is automatically displayed on a panel of the mechanical measuring instrument; the distance measuring device is fastened on the bottom plate through a fixing seat of the distance measuring component, a servo motor is arranged near the distance measuring device, and the servo motor achieves fine adjustment of the distance measuring device through a rotating mechanism; the upper and lower, left and right positions of the clamping block are adjusted to enable the top point of the mechanical measuring instrument to be just contacted with the movable reed, the end face of the measuring head of the distance measuring instrument is just contacted with the baffle, at the moment, the control box sends an instruction for enabling the distance measuring instrument and the mechanical measuring instrument to return to zero, then, the control box sends an instruction for enabling the servo motor to act, the servo motor drives the rotating mechanism to rotate, the measuring rod of the distance measuring instrument moves, the dynamic measuring instrument is further driven to move, the movable reed is jacked, when the movable contact and the fixed contact are just contacted, the servo motor stops working, the control box stores the measuring data of the corresponding distance measuring instrument and the corresponding mechanical measuring instrument at the moment, and the numerical values.

2. The automatic parameter measuring device for the electromagnetic relay according to claim 1, characterized in that: the mechanical measurement component box is a rectangular box, wherein the left side plate is extended forwards to form a baffle plate which is matched with the end face of the measuring head of the distance measuring instrument; the mechanical measuring assembly box is characterized in that a sliding groove is formed in the bottom of the mechanical measuring assembly box, the sliding groove is matched with the sliding rail fixed on the bottom plate, two positioning holes are formed in the other side plate opposite to the baffle plate, the mechanical measuring instrument is fixed in the mechanical measuring assembly box through two positioning bolts, and the mechanical measuring instrument is kept not to move back and forth or left and right in the mechanical measuring assembly box; the mechanical measuring instrument is provided with an automatic digital display device for measured data, and is convenient to use.

3. The automatic parameter measuring device for the electromagnetic relay according to claim 1, characterized in that: the fixing seat of the distance measuring assembly is an L-shaped right-angle fixing seat, the horizontal section is a rectangular plate and is fastened with the bottom plate through bolts, the top of the vertical section is of a semicircular structure, a circular mounting hole is formed in the middle of the vertical section, the distance measuring instrument is fixedly mounted through a fastening device, and by adopting the right-angle fixing seat, the levelness and the verticality can be guaranteed, the measurement is accurate, and the error is small; the distance measuring instrument is provided with a linear measuring rod and an automatic digital display device for measured data, and is convenient to use.

4. The automatic parameter measuring device for the electromagnetic relay according to claim 1, characterized in that: the clamping assembly consists of a sliding rail, a sliding block, a mounting seat and a clamp, wherein the sliding block is a rectangular strip with a sliding groove in the middle and is matched with the sliding rail; the mounting seat is composed of a positioning plate and a mounting wall, wherein the positioning plate is provided with two strip-shaped adjusting holes, and a bolt can fasten the positioning plate and the sliding block in the strip-shaped adjusting holes, so that the mounting seat and the sliding block can be fixed, and meanwhile, the displacement adjustment of the mounting seat on the sliding block in the front-back direction can be realized; the fixture is characterized in that two positioning holes are formed in the mounting wall of the mounting seat, the upper position and the lower position of the fixture on the fixing plate are positioned through bolts of the positioning holes, a sliding groove is formed in one surface, matched with the fixing plate, of the mounting wall, and the fixture can slide up and down on the mounting wall.

5. The automatic parameter measuring device for the electromagnetic relay according to claim 4, wherein: the fixture comprises a fixing plate, a guide pillar mounting block, a guide pillar, a clamping block, an adjusting bolt, a reset spring, a locking pin and a pressing block, wherein the fixing plate is a rectangular plate with an H-shaped structure, two sliding strips are clamped in the sliding grooves in front and at back of one surface corresponding to the sliding grooves of the mounting wall to realize the up-and-down movement of the fixture, a pair of rectangular positioning grooves are symmetrically formed in the upper end and the lower end of the fixing plate and used for positioning and mounting the guide pillar mounting block, the guide pillar mounting block is fixed to the upper end and the lower end of the fixing plate through the bolt, a rectangular strip-shaped locking belt is; a left circular guide pillar and a right circular guide pillar are fixed between an upper guide pillar mounting block and a lower guide pillar mounting block, a clamping block is inserted on the two guide pillars and can slide up and down, a pressing block is fixed on a mounting surface of the clamping block through a bolt, the pressing block is a rectangular block, a screw hole is formed in the center of the pressing block and matched with the adjusting bolt, a secondary step hole is formed in the clamping block, the hole diameter is gradually reduced from top to bottom, the first step hole is a counter bore with a large diameter and used for mounting a locking pin with a reset spring, the second step hole is a through hole with a small diameter, a pin can penetrate through the through hole and is matched and locked with sawteeth of a locking belt of the fixing plate to achieve positioning, and a groove is formed.

6. The apparatus for automatically measuring parameters of an electromagnetic relay according to claim 5, wherein: the diameter of the screw hole on the pressing block is smaller than that of the first stepped hole of the clamping block, and when the adjusting bolt is screwed down, the bolt penetrates through the screw hole and enters the first stepped hole to press the locking pin; the diameter of the pin cap of the locking pin is smaller than that of the first stepped hole but larger than that of the screw hole and the inner diameter of the reset spring, the reset spring is sleeved on the pin, and when the adjusting bolt is unscrewed, the locking pin is reset by the elasticity of the reset spring and cannot eject out of the first stepped hole; the diameter of the second stepped hole is smaller than that of the first stepped hole and smaller than that of the return spring, so that the return spring is prevented from entering the second stepped hole; the diameter of the second stepped hole is slightly larger than that of the locking pin, so that the locking pin can freely move up and down in the second-stage stepped hole.

7. The apparatus for automatically measuring parameters of an electromagnetic relay according to claim 5, wherein: the pin terminal surface of fitting pin is a slope type structure, this slope type structure with the sawtooth structure of locking band is unanimous, screws adjusting bolt, and adjusting bolt roof pressure fitting pin, fitting pin remove, and when fitting pin bottom and the sawtooth contact of locking band, press from both sides tight piece with the dead location of fixed plate lock, when unscrewing adjusting bolt, reset spring resets and kick-backs, drives the fitting pin removes, with the fixed plate separates, press from both sides tight piece and can do on the guide pillar and reciprocate, realize the fine setting of direction from top to bottom.

8. The apparatus for automatically measuring parameters of an electromagnetic relay according to claim 1, wherein: the fastening surface of the clamping block, which is contacted with the relay, is provided with bulges or sawteeth, so that the product can be conveniently and stably clamped, and the problems of slipping and the like possibly caused by the smooth surface are avoided.