CN114346392A - Constant force pressurization resistance pressure welding mechanism - Google Patents
Constant force pressurization resistance pressure welding mechanism Download PDFInfo
- Publication number
- CN114346392A CN114346392A CN202210053899.8A CN202210053899A CN114346392A CN 114346392 A CN114346392 A CN 114346392A CN 202210053899 A CN202210053899 A CN 202210053899A CN 114346392 A CN114346392 A CN 114346392A
- Authority
- CN
- China
- Prior art keywords
- pressure
- constant force
- welding
- resistance
- plate spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 187
- 238000003466 welding Methods 0.000 title claims abstract description 119
- 230000003321 amplification Effects 0.000 claims description 19
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 19
- 239000000919 ceramic Substances 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 12
- 238000005299 abrasion Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000003754 machining Methods 0.000 description 7
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
Images
Landscapes
- Resistance Welding (AREA)
Abstract
The invention discloses a constant force pressurization resistance pressure welding mechanism, which comprises a base, a pressure driving piece, an adjusting mechanism, a constant force mechanism and a resistance welding component, wherein the pressure driving piece provides pressure driving, the driving pressure is input into the constant force mechanism through the adjusting mechanism and then is output as the pressure of resistance pressure welding through the constant force to ensure that a workpiece to be welded between welding points is fully contacted, the adjusting mechanism is connected with the constant force component to adjust the size of the constant force required by welding work, the constant force mechanism is used as the total output end of the pressure to ensure that the workpiece to be welded between the welding points is fully contacted and simultaneously maintain a section of constant force interval, finally, the current generated by the resistance welding component flows through the workpiece to melt the contact surface between the two workpieces by resistance heat to complete welding, the accurate control of the pressure in the welding process is realized, and the processing precision and the welding completion degree can be ensured, the technical effects of effectively avoiding the abrasion and damage of a welding head and a processing workpiece caused by overlarge pressure through constant force.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a constant-force pressurizing resistance pressure welding mechanism.
Background
Pressure welding is a welding method in which a certain pressure is applied to a combined weldment in a heated or unheated state to cause plastic deformation or melting, and atoms on two separated surfaces are connected by forming a metallic bond through recrystallization, diffusion and the like. The pressure welding is of various types, and commonly used are resistance welding, forge welding, contact welding, friction welding, gas pressure welding, cold pressure welding, explosion welding and the like. Resistance welding is one of the common methods of pressure welding, is widely applied to industries such as automobiles, airplanes, instruments, household appliances, reinforcing steel bars for buildings and the like, and has wide application materials. Resistance welding requires a large amount of pressure control, and both excessive and insufficient pressures can lead to inaccuracies in the welding process. The existing electric resistance welding pressurizing propulsion speed must be low to ensure the accuracy and reduce the working efficiency; moreover, because an accurate detection method is not available for monitoring the pressure and the welding completion degree, the welding quality cannot be guaranteed; finally, because of active flexible control, when the tail end is contacted with a workpiece, the contact force inevitably exceeds an expected value, and an expected effect cannot be achieved.
Disclosure of Invention
This application is through providing a constant force pressurization resistance pressure welding mechanism, and it is low and lead to work efficiency not high to have solved among the prior art precision that resistance welded, and the unable accurate control of pressure size, initiative flexible control cause the technical problem that work piece and mechanism damaged. The accurate control of pressure is realized in the welding process, the machining precision and the welding completion degree can be ensured, meanwhile, vibration reduction and collision impact buffering can be provided for the welding process through the constant force continuous area, the abrasion and damage of a welding head and a machined workpiece caused by overlarge pressure are effectively avoided, and the allowable pressurizing and propelling speed is increased, so that the technical effect of improving the working efficiency is achieved.
In view of the above problem, the present application provides a constant-force pressure resistance welding mechanism including: a base; the pressure driving part is arranged on the base and used for providing pressure driving; the input end of the adjusting mechanism is connected with the pressure driving piece and is used for adjusting the magnitude of the driving pressure; the input end of the constant force mechanism is connected with the output end of the adjusting mechanism, and pressure drives the constant force mechanism to enter the adjusting mechanism through the adjusting mechanism and output as pressure for resistance pressure welding to provide pressure; the resistance welding component is connected with the output end of the constant force mechanism, wherein the constant force mechanism outputs constant force interval pressure to apply pressure on a welding workpiece, and the resistance welding component melts a contact surface between the two welding workpieces to realize welding by generating resistance heat through current flowing through the welding workpieces.
Preferably, the constant-force pressure resistance pressure welding mechanism further includes: the shaft sleeve is arranged between the pressure driving piece and the adjusting mechanism, the adjusting mechanism is connected with the pressure driving piece through the shaft sleeve, wherein the inner ring of the shaft sleeve is provided with shaft deviation, and the shaft deviation is connected with the output shaft of the pressure driving piece.
Preferably, the adjusting mechanism includes: the bridge type amplifying mechanisms are in a group and are arranged in an up-down symmetrical mode, one end of each bridge type amplifying mechanism is fixedly arranged on a rigid body part between the bridge type amplifying mechanism and the pressure driving piece, and the other end of each bridge type amplifying mechanism is connected with the constant force mechanism; the piezoelectric ceramic driver is arranged in the middle of the bridge type amplification mechanism and is wrapped by a group of bridge type amplification mechanisms which are arranged in an up-and-down symmetrical mode.
Preferably, the bridge amplification mechanism comprises: the first mass blocks are in a group and are symmetrically arranged between the bridge type amplification mechanism and the piezoelectric ceramic driver; the flexible hinge is connected with the first mass block and receives the driving force transmitted by the input end; the two flexible hinges are respectively arranged at two opposite corners of the third mass block and pull the third mass block in different directions; the driving force transmitted from the input end is amplified under the action of pulling the third mass block by the two flexible hinges in different directions, and the amplified transmission driving force is output through the third mass block.
Preferably, the constant force mechanism includes: the positive stiffness mechanism is connected with the bridge type amplification mechanism; the negative stiffness mechanism is connected with the positive stiffness mechanism through a guide rigid body block, the negative stiffness mechanism is arranged outside the positive stiffness mechanism, the positive stiffness mechanism and the negative stiffness mechanism are combined to form a zero-stiffness constant force mechanism, and zero-stiffness beams are respectively arranged on two sides of the guide rigid body block by taking the guide rigid body block as a symmetric center.
Preferably, the positive stiffness mechanism includes: a first plate spring; a second plate spring disposed in parallel with the first plate spring, the second plate spring having a length greater than that of the first plate spring; and the fourth mass block is arranged between the first plate spring and the second plate spring and is respectively connected with the first plate spring and the second plate spring.
Preferably, the negative stiffness mechanism comprises: and the two groups of symmetrical inclined plate springs are arranged in an inclined and symmetrical manner towards the direction of the positive stiffness mechanism.
Preferably, the resistance welding member includes: a power source; the transformer is connected with the power supply and used for adjusting the current generated by the power supply; the transformer comprises two columnar electrodes, a welding workpiece is placed between the two columnar electrodes, and the current adjusted by the transformer acts on the columnar electrodes through a loop.
One or more technical solutions provided in the present application have at least the following technical effects or advantages:
this application is through providing a constant force pressurization resistance pressure welding mechanism, includes: the method comprises the following steps: the pressure driving part provides pressure drive, and driving pressure passes through the input constant force mechanism of adjustment mechanism, and the back is as the pressure of resistance pressure welding through the constant force output, ensures that the required welding work piece between the welding point fully contacts, and adjustment mechanism connects the required constant force size of constant force component regulation welding work. The constant force mechanism is used as a total output end of pressure, a section of constant force interval can be maintained while ensuring that required welding workpieces between welding points are in full contact at the same time of ensuring the pressure, the pressure generated by continuous pressurization in the period of time cannot be changed, the abrasion and the damage of the welding points and the machining workpieces caused by overlarge pressure can be avoided, finally, the current generated by the resistance welding component flows through the workpieces, the contact surfaces between the two workpieces are melted by resistance heat to complete welding, the accurate control of the pressure in the welding process is realized, the machining precision and the welding completion degree can be ensured, the abrasion and the damage of the welding points and the machining workpieces caused by overlarge pressure are effectively avoided through the constant force, and the allowable pressurization propelling speed is increased, so that the technical effect of improving the working efficiency is achieved. Therefore, the technical problems that in the prior art, the working efficiency is low due to low precision of resistance welding, the pressure can not be accurately controlled, and the workpiece and the mechanism are damaged due to active flexible control are solved.
The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a constant force pressure resistance welding mechanism according to the present application;
FIG. 2 is a front view of a constant force pressure resistance bonding mechanism of the present application;
FIG. 3 is a schematic structural diagram of an adjusting mechanism in a constant-force pressure resistance welding mechanism according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a constant force mechanism in a constant force pressure resistance welding mechanism according to an embodiment of the present disclosure;
description of reference numerals: the piezoelectric ceramic vibration damper comprises a base 1, a pressure driving part 2, an adjusting mechanism 3, a constant force mechanism 4, a resistance welding component 5, a shaft sleeve 6, a bridge type amplifying mechanism 31, a piezoelectric ceramic driver 32, a positive stiffness mechanism 41, a negative stiffness mechanism 42, a power supply 51, a transformer 52, a columnar electrode 53, a first mass block 311, a flexible hinge 312, a second mass block 313, a third mass block 314, a second plate spring 411, a first plate spring 412, a fourth mass block 413 and an inclined plate spring 421.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous details are set forth to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular aspects only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Technical idea
This application is through providing a constant force pressurization resistance pressure welding mechanism, and it is low and lead to work efficiency not high to have solved among the prior art precision that resistance welded, and the unable accurate control of pressure size, initiative flexible control cause the technical problem that work piece and mechanism damaged.
In view of the above technical problems, the technical solution provided by the present application has the following general idea:
a base; the pressure driving part is arranged on the base and used for providing pressure driving; the input end of the adjusting mechanism is connected with the pressure driving piece and is used for adjusting the magnitude of the driving pressure; the input end of the constant force mechanism is connected with the output end of the adjusting mechanism, and pressure drive enters the constant force mechanism after being adjusted by the adjusting mechanism and is output as pressure for resistance pressure welding; the resistance welding component is connected with the output end of the constant force mechanism, wherein the constant force mechanism outputs constant force interval pressure to apply pressure on a welding workpiece, and the resistance welding component melts a contact surface between the two welding workpieces to realize welding by generating resistance heat through current flowing through the welding workpieces. The accurate control of pressure is realized in the welding process, the machining precision and the welding completion degree can be ensured, meanwhile, vibration reduction and collision impact buffering can be provided for the welding process through the constant force continuous area, the abrasion and damage of a welding head and a machined workpiece caused by overlarge pressure are effectively avoided, and the allowable pressurizing and propelling speed is increased, so that the technical effect of improving the working efficiency is achieved.
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1, the present application provides a constant force pressurization resistance pressure welding mechanism, which comprises a base 1, a pressure driving member 2, an adjusting mechanism 3, a constant force mechanism 4, a resistance welding component 5 and a shaft sleeve 6.
A base 1;
specifically, the base 1 is a device for mounting the pressure driving member 2, and ensures that no other offset error is generated in the pressure driving member 2.
The pressure driving piece 2 is arranged on the base 1 and used for providing pressure driving;
specifically, the pressure driving member 2, which may be a voice coil motor or other elements capable of continuously providing pressure for the whole welding process, is mounted on the base 1, and is connected through the adjusting mechanism 3 to input the provided pressure into the constant force mechanism 4.
The input end of the adjusting mechanism 3 is connected with the pressure driving piece 2 and is used for adjusting the driving pressure;
further, the adjusting mechanism 3 includes: the bridge type amplifying mechanisms 31 are arranged in a group and are vertically and symmetrically arranged, wherein one end of each bridge type amplifying mechanism 31 is fixedly arranged on a rigid body part between each bridge type amplifying mechanism 31 and the corresponding pressure driving part 2, and the other end of each bridge type amplifying mechanism 31 is connected with the constant force mechanism 4; and the piezoelectric ceramic driver 32 is arranged in the middle of the bridge type amplification mechanism 31, and is wrapped by a group of bridge type amplification mechanisms 31 which are symmetrically arranged up and down.
Further, the bridge amplification mechanism 31 includes: the first masses 311 are a group, and are symmetrically arranged between the bridge amplification mechanism 31 and the piezoceramic driver 32; a flexible hinge 312, wherein the flexible hinge 312 is connected to the first mass 311 and receives a driving force transmitted from an input end; the two flexible hinges 312 are respectively arranged at two opposite corners of the second mass 313, and pull the second mass 313 in different directions; the driving force transmitted from the input end is amplified by the action of the two flexible hinges 312 pulling the second mass 313 in different directions, and the amplified driving force is output through the third mass 314.
Specifically, the adjusting member 3 includes a set of bridge amplification mechanisms 31 and a piezoceramic driver 32 wrapped at the center thereof, which are completely symmetrical, and one end of the bridge amplification mechanisms 31 is fixed on the rigid body part between the bridge amplification mechanisms 31 and the pressure driving member 2, and the other end is connected with the positive stiffness mechanism 41. The first mass 311 of the symmetrical "T" shape is used as the driving input end between the piezoceramic driver 32 and the bridge amplification mechanism 31, as shown in fig. 3, and the output end passes through the second mass 313 and loads the two flexible hinges 312 which are arranged in a non-linear manner at the opposite angles, so that the driving force transmitted by the input end is amplified under the action of the two flexible hinges 312 pulling the second mass 313 in opposite directions, and the amplified driving force is output by the third mass 314. By starting the adjusting mechanism and outputting the adjusting driving force, the positive stiffness mechanism 41 connected with the adjusting mechanism is adjusted, the magnitude of the input adjusting force is controlled, and the preloading of the positive stiffness mechanism 41 and the negative stiffness mechanism to a constant force interval can be completed, or the magnitude of the constant force and the duration time and range of the constant force interval can be adjusted. It will be appreciated that fig. 3 is shown with the outlet above and the outlet below when fig. 2 is installed, in connection with the constant force mechanism 4.
The input end of the constant force mechanism 4 is connected with the output end of the adjusting mechanism 3, and pressure drives the constant force mechanism 4 to enter the adjusting mechanism 3 through the adjusting mechanism 3 and output as pressure for resistance pressure welding;
further, the constant force mechanism 4 includes: a positive stiffness mechanism 41, wherein the positive stiffness mechanism 41 is connected with the bridge amplification mechanism 31; and the negative stiffness mechanism 42 is connected with the positive stiffness mechanism 41 through a guide rigid body block, the negative stiffness mechanism is arranged outside the positive stiffness mechanism 41, the positive stiffness mechanism 41 and the negative stiffness mechanism 42 are combined to form a zero-stiffness constant force mechanism, and zero-stiffness beams are respectively arranged on two sides of the guide rigid body block by taking the guide rigid body block as a symmetric center.
Further, the positive stiffness mechanism 41 includes: a first plate spring 412; a second plate spring 411, the second plate spring 411 being disposed in parallel with the first plate spring 412, the second plate spring 411 having a length greater than that of the first plate spring 412; and a fourth mass 413, wherein the fourth mass 413 is disposed between the first plate spring and the second plate spring, and is connected to the first plate spring 412 and the second plate spring 411, respectively.
Further, the negative stiffness mechanism comprises: and the two groups of symmetrical inclined plate springs are arranged in an inclined and symmetrical manner towards the direction of the positive stiffness mechanism.
Specifically, the constant force mechanism 4 is formed by connecting the positive stiffness mechanism 41 and the negative stiffness mechanism 42 through the guiding rigid body block, because the positive stiffness mechanism 41 and the negative stiffness mechanism 42 are combined to form the zero-stiffness constant force mechanism, and the zero-stiffness beams are respectively arranged on two opposite sides of the guiding rigid body block by taking the guiding rigid body block as a symmetry center. The positive stiffness mechanism 41 is trapezoidal, symmetrical about the middle, and includes two parallel first leaf springs 412 and second leaf springs 411 with different lengths, and a fourth mass block 413 connected between the leaf springs, as shown in fig. 4, both ends are connected to the negative stiffness mechanism 42 on the input and output rigid blocks, and the force displacement curve of the positive stiffness mechanism 41 is linear.
The negative stiffness mechanism 42 is two sets of two symmetrical inclined plate springs 421, has a certain inclination angle at the beginning, inclines towards the positive stiffness mechanism 41, is a bistable beam, and has two stable points. The change in force displacement curve is: as the displacement increases, the force increases to a first steady-state point, then the force decreases as the displacement increases, decreasing to a second steady-state point, since the inclined leaf spring reaches a critical point, a buckling effect occurs and releases its own potential energy, thus exhibiting a negative stiffness characteristic, which then increases as the displacement increases. The negative stiffness mechanism 42 is connected in parallel with the positive stiffness mechanism 41 to generate the same displacement, and when the positive stiffness and the negative stiffness are equal in magnitude and opposite in direction along with the increase of the displacement, zero stiffness is formed to generate a corresponding constant force interval. The constant force mechanism 4 is used as a total output end of pressure, can maintain a section of constant force interval while ensuring that the required welding workpieces between welding points are fully contacted in the pressure, and meanwhile, the pressure generated by continuous pressurization in the section of time due to the constant force characteristic cannot be changed, so that the abrasion and the damage of a welding head and a processing workpiece caused by overlarge pressure can be avoided. Therefore, the constant force mechanism 4 can simultaneously solve the shortage of the excessive or insufficient pressure.
The resistance welding component 5 is connected with the output end of the constant force mechanism 4, wherein the constant force mechanism 4 outputs constant force interval pressure to apply pressure on a welding workpiece, and the resistance welding component 5 generates resistance heat to melt the contact surface between the two welding workpieces to realize welding by enabling current to flow through the welding workpiece.
Further, the resistance welding member includes: a power supply 51; a transformer 52, wherein the transformer 52 is connected with the power supply 51 and adjusts the current generated by the power supply 51;
the number of the columnar electrodes 53 is two, and a welding workpiece is placed between the two columnar electrodes 53, wherein the current adjusted by the transformer 52 acts on the columnar electrodes 53 through a loop.
Specifically, the resistance welding member 5 is a main member in a welding process, and melts a contact surface between two workpieces by resistance heat generated by flowing a current through the workpieces to achieve a welding effect, and is composed of a power source 8, a transformer 9, and a columnar electrode 10. The power supply 51 generates current, the magnitude of the current is adjusted by the transformer 52, then the current acts on the two columnar electrodes 53 through a loop, two workpieces to be welded are clamped between the two columnar electrodes 53, the workpieces are under the action of certain electrode pressure, the contact surface between the two workpieces is melted by resistance heat generated when the current passes through the workpieces, and pressure is always applied in the welding process in order to prevent electric arcs from occurring on the contact surface and forge weld metal.
Further, the constant force pressure resistance pressure welding mechanism further comprises: the shaft sleeve 6, the shaft sleeve 6 sets up pressure driving piece 2 with between the adjustment mechanism 3, adjustment mechanism 3 passes through the shaft sleeve 6 with pressure driving piece 2 is connected, wherein, the inner circle of shaft sleeve 6 is provided with the off-axis position, through the off-axis position with the output shaft of pressure driving piece 2.
Has the following advantages: the shaft sleeve 3 is a fixing part for connecting the pressure driving part 2 and the adjusting mechanism 4, and the output shaft of the pressure driving part 2 and the inner ring of the shaft sleeve are correspondingly provided with shaft flat positions matched with each other, so that the output shaft of the pressure driving part 2 and the shaft sleeve are stably connected, and the relative rotation is avoided.
To sum up, the application provides a constant force pressurization resistance pressure welding mechanism has reached following beneficial effect:
1. the invention can realize pressure control in the welding process, can ensure the processing precision and solves the problems that the pressure and the welding completion degree cannot be accurately monitored and controlled as far as possible.
2. The constant force continuous area of the constant force mechanism can provide vibration reduction and collision impact buffering for the welding process, effectively avoids abrasion and damage of a welding head and a machining workpiece caused by overlarge pressure, can further improve the allowable pressurizing and propelling speed, and improves the working efficiency.
3. The invention introduces a positive and negative rigidity combination mechanism as a constant force output mechanism, thereby replacing some complex and high-cost control systems.
4. The constant force control device can pre-load or adjust the magnitude and duration of the constant force through the adjusting mechanism.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations.
Claims (8)
1. The utility model provides a constant force pressurization resistance pressure welding mechanism which characterized in that, constant force pressurization resistance pressure welding mechanism includes:
a base;
the pressure driving part is arranged on the base and used for providing pressure driving;
the input end of the adjusting mechanism is connected with the pressure driving piece and is used for adjusting the magnitude of the driving pressure;
the input end of the constant force mechanism is connected with the output end of the adjusting mechanism, and pressure drives the constant force mechanism to enter the adjusting mechanism through the adjusting mechanism and output as pressure for resistance pressure welding to provide pressure;
the resistance welding component is connected with the output end of the constant force mechanism, wherein the constant force mechanism outputs constant force interval pressure to apply pressure on a welding workpiece, and the resistance welding component melts a contact surface between the two welding workpieces to realize welding by generating resistance heat through current flowing through the welding workpieces.
2. The constant force pressure resistance welding mechanism according to claim 1, further comprising:
the shaft sleeve is arranged between the pressure driving piece and the adjusting mechanism, the adjusting mechanism is connected with the pressure driving piece through the shaft sleeve, wherein the inner ring of the shaft sleeve is provided with shaft deviation, and the shaft deviation is connected with the output shaft of the pressure driving piece.
3. The constant force pressure resistance welding mechanism according to claim 1, wherein the adjustment mechanism comprises:
the bridge type amplifying mechanisms are in a group and are arranged in an up-down symmetrical mode, one end of each bridge type amplifying mechanism is fixedly arranged on a rigid body part between the bridge type amplifying mechanism and the pressure driving piece, and the other end of each bridge type amplifying mechanism is connected with the constant force mechanism;
the piezoelectric ceramic driver is arranged in the middle of the bridge type amplification mechanism and is wrapped by a group of bridge type amplification mechanisms which are arranged in an up-and-down symmetrical mode.
4. The constant force pressure resistance bonding mechanism according to claim 3, wherein the bridge amplification mechanism comprises:
the first mass blocks are in a group and are symmetrically arranged between the bridge type amplification mechanism and the piezoelectric ceramic driver;
the flexible hinge is connected with the first mass block and receives the driving force transmitted by the input end;
the two flexible hinges are respectively arranged at two opposite corners of the third mass block and pull the third mass block in different directions;
the driving force transmitted from the input end is amplified under the action of pulling the third mass block by the two flexible hinges in different directions, and the amplified transmission driving force is output through the third mass block.
5. The constant force pressure resistance welding mechanism according to claim 3, wherein the constant force mechanism comprises:
the positive stiffness mechanism is connected with the bridge type amplification mechanism;
the negative stiffness mechanism is connected with the positive stiffness mechanism through a guide rigid body block, the negative stiffness mechanism is arranged outside the positive stiffness mechanism, the positive stiffness mechanism and the negative stiffness mechanism are combined to form a zero-stiffness constant force mechanism, and zero-stiffness beams are respectively arranged on two sides of the guide rigid body block by taking the guide rigid body block as a symmetric center.
6. The constant force pressure resistance welding mechanism according to claim 5, wherein the positive stiffness mechanism comprises:
a first plate spring;
a second plate spring disposed in parallel with the first plate spring, the second plate spring having a length greater than that of the first plate spring;
and the fourth mass block is arranged between the first plate spring and the second plate spring and is respectively connected with the first plate spring and the second plate spring.
7. The constant force pressure resistance welding mechanism according to claim 5, wherein the negative stiffness mechanism comprises:
and the two groups of symmetrical inclined plate springs are arranged in an inclined and symmetrical manner towards the direction of the positive stiffness mechanism.
8. The constant force pressure resistance welding mechanism according to claim 1, wherein the resistance welding member comprises:
a power source;
the transformer is connected with the power supply and used for adjusting the current generated by the power supply;
the transformer comprises two columnar electrodes, a welding workpiece is placed between the two columnar electrodes, and the current adjusted by the transformer acts on the columnar electrodes through a loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210053899.8A CN114346392A (en) | 2022-01-18 | 2022-01-18 | Constant force pressurization resistance pressure welding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210053899.8A CN114346392A (en) | 2022-01-18 | 2022-01-18 | Constant force pressurization resistance pressure welding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114346392A true CN114346392A (en) | 2022-04-15 |
Family
ID=81091117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210053899.8A Pending CN114346392A (en) | 2022-01-18 | 2022-01-18 | Constant force pressurization resistance pressure welding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114346392A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116985629A (en) * | 2023-09-28 | 2023-11-03 | 华东交通大学 | Flexible constant force mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202388118U (en) * | 2011-12-30 | 2012-08-22 | 沈阳中科机械电子工程有限公司 | Intermediate frequency inverter resistance welding machine |
| CN108312086A (en) * | 2017-12-21 | 2018-07-24 | 宁波大学 | The adjustable multiple degrees of freedom flexible micro clamping device of constant force |
| CN108724147A (en) * | 2018-07-27 | 2018-11-02 | 山东大学 | A kind of output of chucking power is constant force and adjustable flexible micro-clamp |
| CN208083648U (en) * | 2018-04-03 | 2018-11-13 | 佛山市美利德电子有限公司 | A kind of intelligent electric formula resistance welder welding mechanism |
| CN112975086A (en) * | 2019-12-12 | 2021-06-18 | 沈阳新松机器人自动化股份有限公司 | End plug pressure resistance welding device |
| CN113172511A (en) * | 2020-10-22 | 2021-07-27 | 吉首大学 | Robot polishing actuator based on constant force mechanism |
-
2022
- 2022-01-18 CN CN202210053899.8A patent/CN114346392A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202388118U (en) * | 2011-12-30 | 2012-08-22 | 沈阳中科机械电子工程有限公司 | Intermediate frequency inverter resistance welding machine |
| CN108312086A (en) * | 2017-12-21 | 2018-07-24 | 宁波大学 | The adjustable multiple degrees of freedom flexible micro clamping device of constant force |
| CN208083648U (en) * | 2018-04-03 | 2018-11-13 | 佛山市美利德电子有限公司 | A kind of intelligent electric formula resistance welder welding mechanism |
| CN108724147A (en) * | 2018-07-27 | 2018-11-02 | 山东大学 | A kind of output of chucking power is constant force and adjustable flexible micro-clamp |
| CN112975086A (en) * | 2019-12-12 | 2021-06-18 | 沈阳新松机器人自动化股份有限公司 | End plug pressure resistance welding device |
| CN113172511A (en) * | 2020-10-22 | 2021-07-27 | 吉首大学 | Robot polishing actuator based on constant force mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116985629A (en) * | 2023-09-28 | 2023-11-03 | 华东交通大学 | Flexible constant force mechanism |
| CN116985629B (en) * | 2023-09-28 | 2024-04-26 | 华东交通大学 | Flexible constant force mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101323049B (en) | Linear friction welding apparatus and method | |
| CN114346392A (en) | Constant force pressurization resistance pressure welding mechanism | |
| JP3894545B2 (en) | Spot welding method | |
| CN101020275A (en) | Linear friction welding process between aluminium part and steel part | |
| EP3042730B1 (en) | Indirect spot welding method | |
| CN101298115B (en) | Method for welding micro-component based on laser dynamical stress and device | |
| US11897048B2 (en) | Friction stir welding apparatus and friction stir welding method | |
| JP5261984B2 (en) | Resistance spot welding method | |
| JP2021515706A (en) | Workpiece processing equipment with servo elastic actuator system with compliance elastic members and weight compensation elastic members | |
| JP3894544B2 (en) | Spot welding method | |
| CN113059464A (en) | Constant-force polishing mechanism and polishing equipment | |
| JP5609966B2 (en) | Resistance spot welding method | |
| CN109476024B (en) | Robot control method and welding method | |
| CN107097008B (en) | Welding clamping device | |
| CN116275449B (en) | Diffusion welding furnace based on displacement control and control method thereof | |
| CN217224185U (en) | Be used for welded predeformation device of battery tray | |
| JP2013132662A (en) | Spot welding apparatus | |
| CN109570720A (en) | Pressure monitoring system and monitoring method for aluminium alloy resistance spot welding welding gun | |
| JP4583616B2 (en) | Method and apparatus for controlling welding robot | |
| WO2021200504A1 (en) | Linear friction joining device | |
| JP3375307B2 (en) | Spot welding gun | |
| CN220407403U (en) | Eccentric electrode spot welding gun | |
| CN219053416U (en) | Wire harness terminal double-sided welding fixture driving mechanism | |
| JP2020049513A (en) | Indirect spot welding device and welding method | |
| CN220445338U (en) | Laser welding single-point hot riveting equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220415 |