CN220028982U - Electric cylinder servo nut welder - Google Patents
Electric cylinder servo nut welder Download PDFInfo
- Publication number
- CN220028982U CN220028982U CN202321487108.9U CN202321487108U CN220028982U CN 220028982 U CN220028982 U CN 220028982U CN 202321487108 U CN202321487108 U CN 202321487108U CN 220028982 U CN220028982 U CN 220028982U
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- electric cylinder
- ball screw
- main shaft
- nut
- electrode device
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- 238000003466 welding Methods 0.000 claims abstract description 24
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000036632 reaction speed Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001050 lubricating effect Effects 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
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Resistance Welding (AREA)
Abstract
The utility model relates to an electric cylinder servo nut welding machine, which comprises a servo motor, a ball screw nut, a main shaft, an electric cylinder seat, an electric cylinder shell and an electrode mounting plate, wherein the electric cylinder seat is arranged on the main shaft; an output shaft of the servo motor is connected with a ball screw, and a main shaft is coaxially connected with the ball screw through a ball screw nut; the main shaft is connected with the electric cylinder seat through an oilless shaft sleeve. The utility model has the advantages that: the traditional cylinder or oil cylinder transmission mode is changed into electric cylinder transmission mode, the torque of the servo motor is converted into pressure through the ball screw, compared with the cylinder or oil cylinder, the electric cylinder has higher reaction speed, the ball screw can be rapidly switched to forward and reverse directions, the pressure provided by the electric cylinder for the upper electrode device is stable, the accuracy of the pressing distance is high, the pressure is high-speed adjustable, and the welding accuracy and the quality stability of the nuts are improved; the lower limiting plate limits the falling limit positions of the main shaft and the upper electrode device, so that the abrasion of parts is reduced; the main shaft is connected through the oil-free shaft sleeve, friction and vibration are reduced, and the pressing precision of the upper electrode device is further improved.
Description
Technical Field
The utility model relates to the technical field of nut welding equipment, in particular to an electric cylinder servo nut welding machine.
Background
The nut is a connecting part which is conventional in the mechanical field, and the welding nut is a nut which is suitable for welding work and can integrate two separated elements through a welding mode. And because the nut volume on the nut welding production line is less and the quantity is more, how to carry out nut welding with high efficiency, accurately is the core problem of nut welding machine development.
As disclosed in chinese patent (publication No. CN 213560512U) nut welder, a multi-stage cylinder is disposed in the upper electrode device to realize multi-stage pressurization of nuts to be welded, and the upper electrode holding rod and the lower electrode holding rod are disposed at corresponding positions on the output end of the multi-stage cylinder and the lower electrode device, respectively, so that the combined nut welder can save power consumption and improve volume utilization rate of the cylinder when welding nuts, thereby making mechanical efficiency of the nut welder higher.
Because the volume of conventional nut is less, the precision that the welding needs is higher, and the pressure that the cylinder provided is unstable, and to the cylinder body gassing needs certain latency, can't accurate stable adjustment pressure fast, influences nut welded precision.
Disclosure of Invention
The utility model aims to provide an electric cylinder servo nut welding machine, which can improve the stability of pressing down an upper electrode device and improve the accuracy of nut welding.
In order to achieve the aim of the utility model, an electric cylinder servo nut welder is provided, which comprises an electrode device, wherein the electrode device comprises an upper electrode device and a lower electrode device, and the lower electrode device is positioned right below the upper electrode device; the device also comprises a servo motor, a ball screw nut, a main shaft, an electric cylinder seat, an electric cylinder shell and an electrode mounting plate;
the servo motor is fixed at the top of the electric cylinder shell, and the electric cylinder shell is fixed at the top of the electric cylinder seat; an output shaft of the servo motor is connected with the ball screw; a connecting frame is vertically arranged in the electric cylinder shell, a screw bearing seat is arranged at the top of the connecting frame, and the ball screw is connected with the connecting frame through the screw bearing seat; the main shaft is coaxially connected with the ball screw through the ball screw nut;
the top and the bottom of the electric cylinder seat are respectively provided with an oilless shaft sleeve, and the main shaft is connected with the electric cylinder seat through the oilless shaft sleeves; the bottom of the main shaft is connected with the electrode mounting plate;
the ball screw nut is provided with a lower limiting plate.
As a further improvement of the utility model, the motor drive device further comprises a coupler, wherein the output shaft of the servo motor is connected with the ball screw through the coupler.
Preferably, a buffer cushion is arranged at the top of the electric cylinder seat.
As a further improvement of the utility model, the bottom of the electric cylinder seat is provided with an oilless shaft sleeve pressing plate, the oilless shaft sleeve pressing plate is connected with the oilless shaft sleeve positioned at the bottom of the electric cylinder seat, a guide shaft and a linear bearing are vertically arranged in the electric cylinder seat, the guide shaft is connected with the oilless shaft sleeve pressing plate through the linear bearing, and the tail end of the guide shaft is fixed with the electrode mounting plate.
According to the electric cylinder servo nut welding machine, the ball screw nut and the main shaft are used as main components of an electric cylinder, the ball screw is driven to rotate forward or backward through the servo motor, the main shaft is lifted along with the ball screw nut, an upper electrode device connected with the main shaft is pressed down along with the main shaft, and the upper electrode device is matched with a lower electrode device below to realize welding of the nuts.
Compared with the prior art, the electric cylinder servo nut welding machine has the advantages that:
(1) The traditional cylinder or oil cylinder transmission mode is changed into electric cylinder transmission mode, the torque of the servo motor is converted into pressure through the ball screw, compared with the cylinder or oil cylinder, the reaction speed of the electric cylinder is faster, the forward and reverse rotation of the ball screw can be rapidly switched, the pressure provided by the electric cylinder for the upper electrode device is stable, the accuracy of the pressing distance is high, the pressure is high-speed and adjustable, and the accuracy and the quality stability of nut welding are improved;
(2) The lower limiting plate can limit the falling limit positions of the main shaft and the upper electrode device, so that the abrasion of parts is reduced;
(3) The main shaft is connected through the oil-free shaft sleeve, friction and vibration are reduced, and the pressing precision of the upper electrode device is further improved.
Drawings
FIG. 1 is a schematic diagram of an electric cylinder servo nut welder;
FIG. 2 is a schematic view of the structure of the electric cylinder;
FIG. 3 is a cross-sectional view of an electric cylinder servo nut welder;
FIG. 4 is a cross-sectional view of an electric cylinder;
fig. 5 is a schematic diagram of a guide shaft connection.
Detailed Description
The utility model is further described below with reference to the drawings and specific examples.
As shown in fig. 1 to 4, the electric cylinder servo nut welder of the present utility model comprises a servo motor 1, a ball screw 2, a ball screw nut 21, a main shaft 3, an electric cylinder seat 4, an electric cylinder housing 5, and an electrode mounting plate 6;
the servo motor 1 is fixed at the top of the electric cylinder shell 5, and the electric cylinder shell 5 is fixed at the top of the electric cylinder seat 4; an output shaft of the servo motor 1 is connected with a ball screw 2; a connecting frame 52 is vertically arranged in the electric cylinder shell 5, a screw bearing seat 51 is arranged at the top of the connecting frame 52, and the ball screw 2 is connected with the connecting frame 52 through the screw bearing seat 51; the main shaft 3 is coaxially connected with the ball screw 2 through a ball screw nut 21;
the top and the bottom of the electric cylinder seat 4 are respectively provided with an oilless shaft sleeve 31, and the main shaft 3 is connected with the electric cylinder seat 4 through the oilless shaft sleeves 31; the bottom of the main shaft 3 is connected with an electrode mounting plate 6; the oilless shaft sleeve 31 plays a guiding role in lifting of the main shaft 3 and also plays a lubricating role, so that friction at the joint of the main shaft 3 and the electric cylinder seat 4 is reduced. The electrode mounting plate 6 is used for connecting an upper electrode device 81.
The ball screw nut 21 is provided with a lower limit plate 211; when the lower limiting plate 211 descends to the bottom of the electric cylinder seat 4, namely the top of the electric cylinder seat 4, the ball screw nut 21 is blocked to move downwards continuously, so that the effect of limiting the descending position of the main shaft 3 is achieved, the phenomenon that the descending distance of the main shaft 3 is overlarge to influence the pressing precision of the upper electrode device 81 connected with the main shaft 3 and further influence the welding of the nut is avoided.
Preferably, the top of the electric cylinder seat 4 is provided with a buffer cushion 32, so that the collision degree between the lower limit plate 211 and the top of the electric cylinder seat 4 is reduced, the shock resistance and the buffer function are realized, and the integral shake of the electric cylinder is reduced.
The utility model discloses an electric cylinder servo nut welding machine, which further comprises a coupler 7, wherein an output shaft of a servo motor 1 is connected with a ball screw 2 through the coupler 7. The coupler 7 can reduce vibration when the ball screw 2 rotates when the output shaft of the servo motor 1 drives, improve the displacement precision of the main shaft 3, improve the lifting stability of the upper electrode device 81, ensure that the upper electrode device 81 and the lower electrode device 82 are always kept on the same axis, and realize accurate welding of nuts.
As shown in fig. 5, the bottom of the electric cylinder seat 4 is provided with an oilless shaft sleeve pressing plate 43, the oilless shaft sleeve pressing plate 43 is connected with an oilless shaft sleeve 31 positioned at the bottom of the electric cylinder seat 4, a guide shaft 41 and a linear bearing 42 are vertically arranged in the electric cylinder seat 4, the guide shaft 41 is connected with the oilless shaft sleeve pressing plate 43 through the linear bearing 42, and the tail end of the guide shaft 41 is fixed with the electrode mounting plate 6.
When the spindle 3 moves along the ball screw 2 along with the ball screw nut 21 in the coaxial direction, the ball screw nut 21 rotates slightly around the ball screw 2, so that the spindle 3 is continuously deflected at a slight angle along with the electric cylinder seat 4, after the electric cylinder works for a long time, the spindle 3 and the electric cylinder seat 4 are dislocated, so that the upper electrode device 81 connected with the spindle is deflected at an angle, the upper electrode device 81 and the lower electrode device 82 cannot be aligned, and the nut welding is affected.
The guiding shaft 41 has the effect that the angular displacement of the main shaft 3 can be avoided to a great extent, and meanwhile, the linear bearing 42 can reduce the friction between the guiding shaft 41 and the electric cylinder seat 4 and reduce the abrasion.
According to the electric cylinder servo nut welding machine, the ball screw 2, the ball screw nut 21 and the main shaft 3 are used as main components of an electric cylinder, the ball screw 2 is driven to rotate forwards or reversely through the servo motor 1, the main shaft 3 is lifted along with the ball screw nut 21, the upper electrode device 81 connected with the main shaft 3 is pressed down along with the lifting of the main shaft, and the upper electrode device 81 is matched with the lower electrode device 82 below to weld nuts.
While the preferred embodiments of the present utility model have been described in detail, the present utility model is not limited to the embodiments described above, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present utility model, and these are intended to be included in the scope of the present utility model as defined in the appended claims.
Claims (4)
1. The electric cylinder servo nut welding machine comprises an electrode device, wherein the electrode device comprises an upper electrode device and a lower electrode device, and the lower electrode device is positioned right below the upper electrode device; the electric cylinder is characterized by further comprising a servo motor, a ball screw nut, a main shaft, an electric cylinder seat, an electric cylinder shell and an electrode mounting plate;
the servo motor is fixed at the top of the electric cylinder shell, and the electric cylinder shell is fixed at the top of the electric cylinder seat; an output shaft of the servo motor is connected with the ball screw; a connecting frame is vertically arranged in the electric cylinder shell, a screw bearing seat is arranged at the top of the connecting frame, and the ball screw is connected with the connecting frame through the screw bearing seat; the main shaft is coaxially connected with the ball screw through the ball screw nut;
the top and the bottom of the electric cylinder seat are respectively provided with an oilless shaft sleeve, and the main shaft is connected with the electric cylinder seat through the oilless shaft sleeves; the bottom of the main shaft is connected with the electrode mounting plate;
the ball screw nut is provided with a lower limiting plate.
2. The electric cylinder servo nut welder as defined in claim 1 further comprising a coupling, said coupling being coupled between an output shaft of said servo motor and said ball screw.
3. The electric cylinder servo nut welder as defined in claim 1, wherein a cushion pad is provided on top of said electric cylinder block.
4. The electric cylinder servo nut welder as claimed in claim 1, wherein an oilless shaft sleeve pressing plate is arranged at the bottom of the electric cylinder seat, the oilless shaft sleeve pressing plate is connected with the oilless shaft sleeve positioned at the bottom of the electric cylinder seat, a guide shaft and a linear bearing are vertically arranged in the electric cylinder seat, the guide shaft is connected with the oilless shaft sleeve pressing plate through the linear bearing, and the tail end of the guide shaft is fixed with the electrode mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321487108.9U CN220028982U (en) | 2023-06-12 | 2023-06-12 | Electric cylinder servo nut welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321487108.9U CN220028982U (en) | 2023-06-12 | 2023-06-12 | Electric cylinder servo nut welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220028982U true CN220028982U (en) | 2023-11-17 |
Family
ID=88738863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321487108.9U Active CN220028982U (en) | 2023-06-12 | 2023-06-12 | Electric cylinder servo nut welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220028982U (en) |
-
2023
- 2023-06-12 CN CN202321487108.9U patent/CN220028982U/en active Active
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