CN216227514U - Constant-pressure constant-displacement high-precision friction stir welding electric spindle - Google Patents
Constant-pressure constant-displacement high-precision friction stir welding electric spindle Download PDFInfo
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- CN216227514U CN216227514U CN202122918381.XU CN202122918381U CN216227514U CN 216227514 U CN216227514 U CN 216227514U CN 202122918381 U CN202122918381 U CN 202122918381U CN 216227514 U CN216227514 U CN 216227514U
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Abstract
The utility model discloses a constant-pressure constant-displacement high-precision friction stir welding electric spindle which comprises an electric spindle main body and a stirring shoulder, wherein the stirring shoulder is fixedly arranged at the output end of the electric spindle main body, the bottom surface of the stirring shoulder is fixedly provided with a stirring head, and the outer wall of the electric spindle main body is fixedly sleeved with a fixing ring. Has the advantages that: when the stirring shoulder moves upwards or downwards to cause pressure change, the pressure sensor synchronously moves upwards or downwards, so that the contact force between the top surface of the bottom plate and the pressure sensor is changed, the pressure value is changed, the pressure sensor generates a signal to the PLC of the electric spindle main body, the PLC of the electric spindle main body controls the height of the electric spindle main body to be adjusted until the pressure value is within the range of the set value of the pressure sensor, the pressure is kept constant, and the electric spindle main body is convenient to drive the stirring shoulder and the stirring head to weld workpieces at constant pressure, so that the welding stability and the welding efficiency are improved.
Description
Technical Field
The utility model relates to the technical field of machine tool spindles, in particular to a constant-pressure constant-displacement high-precision friction stir welding electric spindle.
Background
The main shaft is a set of components, including main shaft itself and its accessories, i.e. main shaft, high-frequency converter, oil mist lubricator, cooler, built-in coder and tool changer.
The stirring shoulder and the stirring head are installed to the electric main shaft that friction stir welding used, at friction stir welding's in-process, the stirring head stretches into in the welding gap, stirring shoulder and welding work piece top surface butt, and apply for welding work piece certain pressure, thereby at the pivoted in-process floating work piece, get rid of the work piece oxide layer, however, the electric main shaft drives the welding of stirring shoulder and stirring head in-process, vertical applied pressure can produce the change sometimes, it is more obvious especially when welding the work piece that has the slope, lead to the uneven condition of pressure application, lead to welding unstable and even condition to take place inadequately, in addition, at the in-process that the electric main shaft removed, speed is also unstable inadequately, lack the speed governing mechanism that corresponds, lead to the displacement inhomogeneous, influence welding stability, also can further make the improvement.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides the constant-pressure constant-displacement high-precision friction stir welding electric spindle, which has the advantages of improving the welding stability and uniformity and improving the welding efficiency, and further solves the problems in the background art.
(II) technical scheme
In order to realize the advantages of improving the welding stability and uniformity and improving the welding efficiency, the utility model adopts the following specific technical scheme:
the utility model provides a constant pressure and constant displacement's high accuracy friction stir welding electricity main shaft, includes electricity main shaft main part and stirring shoulder, electricity main shaft main part output fixed mounting has the stirring shoulder, and stirring shoulder bottom surface fixed mounting has the stirring head, electricity main shaft main part outer wall is fixed to have cup jointed solid fixed ring, and solid fixed ring side surface has the mounting panel through first hoist and mount frame fixed hoist and mount to mounting panel bottom surface fixed mounting has pressure sensor, the mounting panel below is provided with the bottom plate, and the bottom plate top surface is located the vertical fixed mounting in pressure sensor outside and has the guide bar to the guide bar runs through the mounting panel and with mounting panel sliding connection, the ball groove has been seted up to the bottom plate bottom surface, and ball inslot portion roll connection has the ball.
Furthermore, the other side surface of the fixing ring is fixedly hoisted with a cantilever plate through a second hoisting frame, the top surface of the cantilever plate is fixedly provided with a laser velocimeter, and the detection end of the laser velocimeter penetrates through the cantilever plate and extends to the lower part of the cantilever plate.
Furthermore, a spring is sleeved between the mounting plate and the bottom plate on the outer side of the guide rod, and two ends of the spring are fixedly connected with the mounting plate and the bottom plate respectively.
Furthermore, the guide rods are arranged at equal angles and adopt smooth round rods.
Furthermore, the ball grooves are provided with a plurality of ball grooves, the inner diameter of each ball groove is equal to the outer diameter of each ball, and the depth of each ball groove is larger than the radius of each ball.
Further, the installation height of the bottom surface of the ball is equal to that of the bottom surface of the stirring shoulder.
Furthermore, the first hoisting frame and the second hoisting frame are both of non-deformable metal structures.
Furthermore, the output end of the pressure sensor is electrically connected with the output end of the laser velocimeter and the input end of the PLC of the electric spindle main body.
(III) advantageous effects
Compared with the prior art, the utility model provides a constant-pressure constant-displacement high-precision friction stir welding electric spindle, which has the following beneficial effects:
(1) the utility model adopts the bottom plate, the mounting plate and the pressure sensor, when friction stir welding is carried out, the stirring head extends into a gap, the stirring shoulder is abutted against the top surface of a workpiece, at the moment, the ball on the bottom surface of the bottom plate is abutted against the surface of the workpiece, the bottom plate extrudes the pressure sensor to generate pressure to the pressure sensor, so that the pressure sensor generates an electric signal to be sent to the PLC of the electric spindle main body, and further displays a pressure value, when the stirring shoulder moves upwards or downwards to cause pressure change, the pressure sensor synchronously moves upwards or downwards to cause the change of the contact force between the top surface of the bottom plate and the pressure sensor, so that the pressure is changed, the pressure value is changed, the pressure sensor generates a signal to be sent to the PLC of the electric spindle main body, the PLC of the electric spindle main body controls the electric spindle main body to adjust the height until the pressure value is within the set value range of the pressure sensor, therefore, the pressure is kept constant, the electric spindle main body can conveniently drive the stirring shoulder and the stirring head to weld a workpiece at constant pressure, and the welding stability and the welding efficiency are improved.
(2) The laser speed meter is adopted, when the electric spindle main body is welded, the laser speed meter is driven to move synchronously, the laser speed meter measures the moving speed of the electric spindle main body, when the speed is too high or too low, an electric signal is sent to the PLC of the electric spindle main body, the PLC of the electric spindle main body adjusts the moving speed of the electric spindle main body, and therefore the electric spindle main body moves at a constant displacement speed, and the welding stability and uniformity are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a constant-pressure constant-displacement high-precision friction stir welding electric spindle according to the present invention;
FIG. 2 is a bottom view of the bottom plate proposed by the present invention;
fig. 3 is a schematic view of the connection of the mounting plate and the base plate according to the present invention.
In the figure:
1. an electric spindle body; 2. a fixing ring; 3. a first hoisting frame; 4. mounting a plate; 5. a base plate; 6. a guide bar; 7. a spring; 8. a ball bearing; 9. a pressure sensor; 10. a second hoisting frame; 11. carrying out plate picking; 12. a laser velocimeter; 13. a ball groove; 14. a stirring shoulder; 15. and (4) a stirring head.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the utility model, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to the embodiment of the utility model, the constant-pressure constant-displacement high-precision friction stir welding electric spindle is provided.
The present invention will be further described with reference to the accompanying drawings and specific embodiments, as shown in fig. 1 to 3, a constant-pressure constant-displacement high-precision friction stir welding electric spindle according to an embodiment of the present invention includes an electric spindle body 1 and a stirring shoulder 14, the stirring shoulder 14 is fixedly mounted at an output end of the electric spindle body 1, and a stirring head 15 is fixedly mounted at a bottom surface of the stirring shoulder 14, which are common structures in the art and not described herein, a fixing ring 2 is fixedly sleeved on an outer wall of the electric spindle body 1, a mounting plate 4 is fixedly hung on a side surface of the fixing ring 2 through a first hanging frame 3, a pressure sensor 9 is fixedly mounted at a bottom surface of the mounting plate 4, a bottom plate 5 is disposed below the mounting plate 4, a guide rod 6 is vertically and fixedly mounted at a top surface of the bottom plate 5 outside the pressure sensor 9, and the guide rod 6 penetrates through the mounting plate 4 and is connected with the mounting plate 4 in a sliding manner, the bottom surface of the bottom plate 5 is provided with a ball groove 13, the ball 8 is connected in the ball groove 13 in a rolling manner, the ball 8 is in contact with a workpiece, when the workpiece moves, the ball 8 rolls to reduce friction, when friction stir welding is carried out, the stirring head 15 extends into a gap, the stirring shoulder 14 is abutted against the top surface of the workpiece, at the moment, the ball 8 at the bottom surface of the bottom plate 5 is abutted against the surface of the workpiece, the bottom plate 5 extrudes the pressure sensor 9 to generate pressure to the pressure sensor 9, so that the pressure sensor 9 generates an electric signal to the PLC of the electric spindle main body 1, and further the pressure value is displayed, when the stirring shoulder 14 moves upwards or downwards to cause pressure change, the pressure sensor 9 synchronously moves upwards or downwards, so that the contact force between the top surface of the bottom plate 5 and the pressure sensor 9 is changed, further the pressure is changed, the pressure value is changed, and the pressure sensor 9 generates a signal to the PLC of the electric spindle main body 1, the PLC of the electric spindle main body 1 controls the electric spindle main body 1 to adjust the height until the pressure value is within the set value range of the pressure sensor 9, so that the pressure is kept constant, the electric spindle main body 1 can drive the stirring shoulder 14 and the stirring head 15 to weld workpieces at constant pressure, and the welding stability and the welding efficiency are improved.
In one embodiment, the other side surface of the fixing ring 2 is fixedly hung with a pick-up plate 11 through a second hanging frame 10, a laser velocimeter 12 is fixedly installed on the top surface of the pick-up plate 11, a detection end of the laser velocimeter 12 penetrates through the pick-up plate 11 and extends to the lower side of the pick-up plate 11, when the electric spindle body 1 is welded, the laser velocimeter 12 is synchronously driven to move, the laser velocimeter 12 measures the moving speed of the electric spindle body 1, when the speed is too fast or too slow, an electric signal is sent to a PLC of the electric spindle body 1, the PLC of the electric spindle body 1 adjusts the moving speed of the electric spindle body 1, and then the electric spindle body 1 moves at a constant moving speed, so that the stability and uniformity of welding are improved.
In one embodiment, a spring 7 is sleeved between the mounting plate 4 and the bottom plate 5 on the outer side of the guide rod 6, two ends of the spring 7 are fixedly connected with the mounting plate 4 and the bottom plate 5 respectively, and the spring 7 pulls the bottom plate 5 to prevent the bottom plate 5 from being separated from the pressure sensor 9 to generate a vertical gap.
In one embodiment, the guide rods 6 are arranged at equal angles, and the guide rods 6 are smooth round rods for guiding the bottom plate 5.
In one embodiment, the ball grooves 13 are provided in plurality, and the inner diameter of the ball grooves 13 is equal to the outer diameter of the balls 8, so that the balls 8 are prevented from shaking, and the depth of the ball grooves 13 is greater than the radius of the balls 8, so that the balls 8 are prevented from falling.
In one embodiment, the bottom surface of the ball 8 is installed at a height equal to the bottom surface of the stirring shoulder 14, and when the stirring shoulder 14 abuts and is pressed into the workpiece to a certain height, the ball 8 pushes the bottom plate 5 to press the pressure sensor 9, so that the bottom plate 5 is stressed.
In one embodiment, the first sling 3 and the second sling 10 are both of non-deformable metal construction, the surface deformations causing inaccuracies in the measurements.
In an embodiment, the output end of the pressure sensor 9 is electrically connected to the output end of the laser velocimeter 12 uniformly and electrically connected to the PLC input end of the electric spindle main body 1, which is a common control connection form and will not be described herein.
The working principle is as follows:
when friction stir welding is carried out, the stirring head 15 extends into the gap, the stirring shoulder 14 abuts against the top surface of the workpiece, at this time, the ball 8 on the bottom surface of the bottom plate 5 abuts against the surface of the workpiece, the bottom plate 5 extrudes the pressure sensor 9 to generate pressure to the pressure sensor 9, so that the pressure sensor 9 generates an electric signal to the PLC of the electric spindle main body 1, and further displays a pressure value, when the stirring shoulder 14 moves upwards or downwards to cause pressure change, the pressure sensor 9 synchronously moves upwards or downwards to cause the change of the contact force between the top surface of the bottom plate 5 and the pressure sensor 9, and further changes the pressure, the pressure value is changed, the pressure sensor 9 generates a signal to the PLC of the electric spindle main body 1, the PLC of the electric spindle main body 1 controls the electric spindle main body 1 to adjust the height until the pressure value is within the set value range of the pressure sensor 9, so as to maintain the pressure to be constant, and the electric spindle main body 1 drives the stirring shoulder 14 and the stirring head 15 to weld workpieces at constant pressure, so that the welding stability and the welding efficiency are improved, meanwhile, when the electric spindle main body 1 is welded, the laser velocimeter 12 is synchronously driven to move, the laser velocimeter 12 measures the moving speed of the electric spindle main body 1, when the speed is too fast or too slow, an electric signal is sent to the PLC of the electric spindle main body 1, the PLC of the electric spindle main body 1 adjusts the moving speed of the electric spindle main body 1, and then the electric spindle main body 1 moves at a constant displacement speed, so that the welding stability and uniformity are improved.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides a high accuracy friction stir welding electricity main shaft of constant pressure constant displacement, a serial communication port, including electricity main shaft main part (1) and shoulder (14), electricity main shaft main part (1) output end fixed mounting has shoulder (14), and shoulder (14) bottom surface fixed mounting has stirring head (15), electricity main shaft main part (1) outer wall fixed cover has connect solid fixed ring (2), and solid fixed ring (2) a side surface has mounting panel (4) through first hoist and mount frame (3) fixed hoist and mount to mounting panel (4) bottom surface fixed mounting has pressure sensor (9), mounting panel (4) below is provided with bottom plate (5), and bottom plate (5) top surface is located the vertical fixed mounting in pressure sensor (9) outside and has guide bar (6) to guide bar (6) run through mounting panel (4) and with mounting panel (4) sliding connection, ball groove (13) have been seted up to bottom plate (5) bottom surface, and the inside of the ball groove (13) is connected with a ball (8) in a rolling way.
2. The constant-pressure constant-displacement high-precision friction stir welding electric spindle according to claim 1, wherein the other side surface of the fixed ring (2) is fixedly hung with a pick plate (11) through a second hanging frame (10), the top surface of the pick plate (11) is fixedly installed with a laser velocimeter (12), and the detection end of the laser velocimeter (12) penetrates through the pick plate (11) and extends to the position below the pick plate (11).
3. The constant-pressure constant-displacement high-precision friction stir welding electric spindle according to claim 1, wherein a spring (7) is sleeved between the mounting plate (4) and the bottom plate (5) on the outer side of the guide rod (6), and two ends of the spring (7) are respectively fixedly connected with the mounting plate (4) and the bottom plate (5).
4. The constant-pressure constant-displacement high-precision friction stir welding electric spindle according to claim 1, wherein the guide rods (6) are arranged at equal angles, and the guide rods (6) are smooth round rods.
5. A constant pressure and constant displacement high precision friction stir welding electric spindle according to claim 1, wherein the ball groove (13) is provided in plurality, and the inner diameter of the ball groove (13) is equal to the outer diameter of the ball (8), and the depth of the ball groove (13) is larger than the radius of the ball (8).
6. A constant pressure and constant displacement high precision friction stir welding electric spindle according to claim 1, wherein the installation height of the bottom surface of the ball (8) is equal to the installation height of the bottom surface of the stirring shoulder (14).
7. The constant-pressure constant-displacement high-precision friction stir welding electric spindle according to claim 2, wherein the first hoisting frame (3) and the second hoisting frame (10) are of non-deformable metal structures.
8. The constant-pressure constant-displacement high-precision friction stir welding electric spindle according to claim 2, wherein the output end of the pressure sensor (9) is electrically connected with the PLC input end of the laser velocimeter (12) uniform electric spindle main body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122918381.XU CN216227514U (en) | 2021-11-25 | 2021-11-25 | Constant-pressure constant-displacement high-precision friction stir welding electric spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122918381.XU CN216227514U (en) | 2021-11-25 | 2021-11-25 | Constant-pressure constant-displacement high-precision friction stir welding electric spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216227514U true CN216227514U (en) | 2022-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122918381.XU Active CN216227514U (en) | 2021-11-25 | 2021-11-25 | Constant-pressure constant-displacement high-precision friction stir welding electric spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216227514U (en) |
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2021
- 2021-11-25 CN CN202122918381.XU patent/CN216227514U/en active Active
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