CN212470152U - Mistake proofing device in nut welding process - Google Patents
Mistake proofing device in nut welding process Download PDFInfo
- Publication number
- CN212470152U CN212470152U CN202020824687.1U CN202020824687U CN212470152U CN 212470152 U CN212470152 U CN 212470152U CN 202020824687 U CN202020824687 U CN 202020824687U CN 212470152 U CN212470152 U CN 212470152U
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- welding
- lower electrode
- displacement sensor
- linear displacement
- controller
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- 238000003466 welding Methods 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000006073 displacement reaction Methods 0.000 claims abstract description 29
- 239000000919 ceramic Substances 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Abstract
The utility model discloses an error proofing device in the nut welding process, which comprises a touch screen, a controller, a linear displacement sensor and a projection welding lower electrode, wherein the touch screen and the linear displacement sensor are respectively connected with the controller; the projection welding lower electrode is connected with the linear displacement sensor; the welding machine is characterized in that the controller is connected with a welding machine controller, the welding machine controller is connected with an alarm, and the projection welding lower electrode comprises a lower electrode body, an electrode rod, a ceramic positioning pin, a lower electrode cooling block, a first fixing support and a second fixing support. The utility model discloses a mistake proofing device in nut welding process, through measuring the comparison, the suggestion of reporting an emergency and asking for when the welding that appears the situation is time, indirect welding's quality has also had comparatively meticulous inspection, can reflect the size around the welding comparatively directly perceivedly to judge the degree of melting of welding point, reach the effect of preliminary judgement welding quality.
Description
Technical Field
The utility model relates to an error proofing device in nut welding process.
Background
The floor type projection welding machine can cause hole leakage punching or hole deformation on a product in the process of welding a nut, and the situation can cause the ceramic positioning pin of the nut to be pressed down too early in the welding process, so that the nut is deviated due to no reliable positioning after being welded, and the product quality defect is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's defect, the utility model provides an error proofing device in nut welding process, through the stroke of measuring ceramic locating pin when welding, accomplish to welding piece hole little, the measuring function of welding back nut height etc. through measuring the comparison, can reach the warning suggestion in time when the welding of situation appears, indirect welding's quality has also had comparatively meticulous inspection, can reflect the size around the welding comparatively directly perceivedly, thereby judge the degree of melting of welding point, reach the effect of preliminary judgement welding quality.
The technical scheme for realizing the purpose is as follows: the utility model provides a mistake proofing device in nut welding process, external welding machine controller, mistake proofing device includes touch-sensitive screen, controller, linear displacement sensor and projection welding bottom electrode, wherein:
the touch screen and the linear displacement sensor are respectively connected with the controller;
the projection welding lower electrode is connected with the linear displacement sensor;
the controller is connected with the welding machine controller, and the welding machine controller is connected with an alarm.
The mistake proofing device in nut welding process, wherein, projection welding bottom electrode includes electrode body, electrode pole, ceramic locating pin, bottom electrode cooling block, first fixed bolster and second fixed bolster down, wherein:
the lower electrode body is arranged at the top end of the electrode rod;
a return spring, a first connecting rod, an adjusting nut and a second connecting rod are sequentially arranged in the electrode rod from top to bottom;
a positioning pin mounting hole is formed in the middle of the lower electrode body, and the ceramic positioning pin is inserted into the positioning pin mounting hole;
the bottom end of the ceramic positioning pin is connected with the top end of the reset spring;
the linear displacement sensor is arranged at the bottom end of the electrode rod, and a detection head of the linear displacement sensor is connected with the bottom end of the second connecting rod;
the lower electrode cooling block and the first fixed bracket are arranged outside the electrode rod up and down;
the linear displacement sensor is fixed on the second fixing support.
In the error-proofing device for the nut welding process, a first fixing support mounting step is arranged on one side of the second fixing support, and the first fixing support is arranged on the first fixing support mounting step.
The utility model discloses a mistake proofing device in nut welding process, through the stroke of measuring ceramic locating pin when welding, accomplish the measuring function to welding piece hole little, welding back nut height etc. through measuring the comparison, can reach the warning prompt when the welding piece of situation appears, indirect welding's quality has also had comparatively meticulous inspection, can reflect the size around the welding comparatively directly perceivedly to judge the degree of melting of welding point, reach the effect of preliminary judgement welding quality.
Drawings
Fig. 1 is a schematic structural view of the error proofing device in the nut welding process of the present invention;
FIG. 2 is the electrical schematic diagram of the error proofing device in the nut welding process of the present invention
FIG. 3 is a perspective view of a projection welded lower electrode;
FIG. 4 is an exploded view of a projection welded lower electrode;
FIG. 5 is a schematic view of the position of the nut and web press with the holes normal;
FIG. 6 is a schematic view of the position of the weld plate when the hole is abnormal.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following detailed description is provided with reference to the accompanying drawings:
referring to fig. 1 and 2, a preferred embodiment of the present invention is an error-proofing device for nut welding process, which includes a touch screen 1, a controller 2, a linear displacement sensor 3 and a projection welding bottom electrode 4.
The touch screen 1 and the linear displacement sensor 3 are respectively connected with the controller 2; the projection welding lower electrode 4 is connected with the linear displacement sensor 3; the controller 2 is connected with a welding machine controller 5, and the welding machine controller 5 is connected with an alarm 6.
Referring to fig. 3 and 4, the projection welding lower electrode 4 includes a lower electrode body 41, an electrode rod 42, a ceramic positioning pin 43, a lower electrode cooling block 44, a first fixing bracket 45 and a second fixing bracket 46, wherein the lower electrode body 41 is disposed at the top end of the electrode rod 42; a return spring 47, a first connecting rod 48, an adjusting nut 49 and a second connecting rod 410 are sequentially arranged in the electrode rod 42 from top to bottom; a positioning pin mounting hole is formed in the middle of the lower electrode body 41, and the ceramic positioning pin 43 is inserted in the positioning pin mounting hole; the bottom end of the ceramic positioning pin 43 is connected with the top end of a return spring 47; the linear displacement sensor 3 is arranged at the bottom end of the electrode rod 42, and a detection head of the linear displacement sensor 3 is connected with the bottom end of the second connecting rod 410; the lower electrode cooling block 44 and the first fixing bracket 45 are disposed one above the other outside the electrode rod 42; the linear displacement sensor 3 is fixed to the second fixing bracket 46. A first fixing bracket mounting step is provided at one side of the second fixing bracket 46, and the first fixing bracket 45 is provided on the first fixing bracket mounting step. The ceramic positioning pin 43 is connected with the linear displacement sensor 3 through the reset spring 47, the first connecting rod 48, the adjusting nut 49 and the second connecting rod 410 which are connected in sequence, so that the welding stroke of welding can be directly reflected to the linear displacement sensor 3, and thus, the electrical measurement and control can be realized.
Referring to fig. 5 and 6, a welding plate is placed on the lower electrode, a hole in the welding plate corresponds to the ceramic positioning pin 43, the nut is pressed at the position a of the ceramic positioning pin 43 when the hole is normal, and the tablet is pressed at the position b of the ceramic positioning pin 43; when the hole is abnormal, the welding plate is pressed against the position c of the ceramic positioning pin 43.
The utility model discloses an error proofing device in nut welding process, when using, set up the welding height behind normal use welding plate and the nut on touch-sensitive screen 1, place the welding plate under the normal condition, put the parameter that welding was accomplished after the nut and input controller 2 through touch-sensitive screen 1, need set for the original point (do not weld) and the parameter after the welding, examine the tolerance range of time measuring in addition. After actual measurement, the actual value is compared with the set value, and an alarm is given when the tolerance value is exceeded.
When the hole is abnormal, the welding plate 100 is pressed at the position c of the ceramic positioning pin 43, the ceramic positioning pin 43 is driven to move downwards when the upper electrode is pressed downwards, the electrode pushes the linear sensor 3 to measure, a current conversion signal output by the linear sensor 3 is input to the controller 5 to be calculated, after the calculation is compared with the parameters arranged on the touch screen 1, an alarm signal is sent to the welding machine controller 5 under the condition of out-of-tolerance, the welding machine controller 5 controls the alarm 6 to send out a welding alarm, and production personnel are prompted to check a welding part.
The utility model discloses an error proofing device in the nut welding process:
(1) the touch screen 1 adopts a 7-inch touch screen TK6071IP made of Welun, the touch screen is stable in work and convenient to set, the screen is larger, pictures can be displayed visually, and the touch screen is low in price;
(2) because the output signals are few, the controller 2 adopts an FX3U-16M small-sized controller and is matched with an analog input block FX3U-4AD, the motion amount of the linear displacement sensor is converted into a digital signal in the controller through the analog input block, and the digital signal is calculated with the parameters set by the touch screen; the operation is carried out by comparing programs written in the controller;
(3) the linear displacement sensor 3 has a maximum motion amount of only about 10mm in actual operation, and therefore, a milang KPM16-25mm displacement sensor is selected. The actual displacement is 25mm at the maximum. Its accuracy can reach 0.6%, also be 0.15mm, satisfy the utility model discloses required precision. If higher precision is needed, other high-precision linear displacement sensors can be adopted, the linear displacement sensors are connected with the ceramic positioning pins of the electrodes, and stroke parameters are read by pressing the stroke of the positioning pins during welding.
To sum up, the utility model discloses an error proofing device in nut welding process measures the stroke of ceramic locating pin through the welding time, accomplishes the measurement function to welding piece hole little, welding back nut height etc. through measuring the comparison, can reach the warning prompt when the welding of situation appears, and indirect welding's quality has also had comparatively meticulous inspection, can reflect the size around the welding comparatively directly perceivedly to judge the degree of melting of welding point, reach the effect of preliminary judgement welding quality.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (3)
1. The utility model provides a mistake proofing device in nut welding process, external welding machine controller, its characterized in that, mistake proofing device includes touch-sensitive screen, controller, linear displacement sensor and projection welding bottom electrode, wherein:
the touch screen and the linear displacement sensor are respectively connected with the controller;
the projection welding lower electrode is connected with the linear displacement sensor;
the controller is connected with the welding machine controller, and the welding machine controller is connected with an alarm.
2. The error proofing device in nut welding process according to claim 1, wherein the projection welding lower electrode comprises a lower electrode body, an electrode rod, a ceramic positioning pin, a lower electrode cooling block, a first fixing bracket and a second fixing bracket, wherein:
the lower electrode body is arranged at the top end of the electrode rod;
a return spring, a first connecting rod, an adjusting nut and a second connecting rod are sequentially arranged in the electrode rod from top to bottom;
a positioning pin mounting hole is formed in the middle of the lower electrode body, and the ceramic positioning pin is inserted into the positioning pin mounting hole;
the bottom end of the ceramic positioning pin is connected with the top end of the reset spring;
the linear displacement sensor is arranged at the bottom end of the electrode rod, and a detection head of the linear displacement sensor is connected with the bottom end of the second connecting rod;
the lower electrode cooling block and the first fixed bracket are arranged outside the electrode rod up and down;
the linear displacement sensor is fixed on the second fixing support.
3. The error proofing device for nut welding process according to claim 2, wherein a first fixing bracket mounting step is provided at one side of the second fixing bracket, and the first fixing bracket is provided on the first fixing bracket mounting step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020824687.1U CN212470152U (en) | 2020-05-18 | 2020-05-18 | Mistake proofing device in nut welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020824687.1U CN212470152U (en) | 2020-05-18 | 2020-05-18 | Mistake proofing device in nut welding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212470152U true CN212470152U (en) | 2021-02-05 |
Family
ID=74461179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020824687.1U Expired - Fee Related CN212470152U (en) | 2020-05-18 | 2020-05-18 | Mistake proofing device in nut welding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212470152U (en) |
-
2020
- 2020-05-18 CN CN202020824687.1U patent/CN212470152U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210205 |