CN209887082U - Machine tool with friction welding function - Google Patents
Machine tool with friction welding function Download PDFInfo
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- CN209887082U CN209887082U CN201920265675.7U CN201920265675U CN209887082U CN 209887082 U CN209887082 U CN 209887082U CN 201920265675 U CN201920265675 U CN 201920265675U CN 209887082 U CN209887082 U CN 209887082U
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- main shaft
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Abstract
The utility model discloses a lathe with friction welding function relates to the lathe field, and it is too much to aim at solving traditional machine tool machining clamping number of times, leads to the problem that the precision reduces, and its technical scheme main points are: the auxiliary device comprises an auxiliary table, a cutting assembly and a pressure compensation assembly, wherein the auxiliary table is arranged on the machine tool body in a sliding mode, the cutting assembly is arranged on the auxiliary table, and the pressure compensation assembly is arranged on the auxiliary table. The utility model discloses a lathe with friction welding function has the advantage that reduces work piece clamping number of times, improves the machining precision.
Description
Technical Field
The utility model belongs to the technical field of the technique of lathe and specifically relates to a lathe with friction welding function is related to.
Background
The friction welding is a solid welding method, the friction welding machine uses friction heat as a heat source, and the friction surfaces of two weldments generate heat through mechanical friction motion and axial pressure, so that the friction surfaces of the two weldments are heated to plastic deformation, and then the two weldments made of the same material or different materials are firmly connected by utilizing the plastic deformation.
At present, friction welding usually adopts a special friction welding machine, the occupied area is large, the cost is high, and for the field needing machine tool machining, a special friction welding machine is required to be arranged when the friction welding is related, so that the cost is overhigh, workpieces need to be transferred to a machine tool after the welding of the welding machine is finished, the clamping times of the workpieces are increased, and the precision of the workpiece machining is easily reduced.
Therefore, a new technical solution is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a lathe with friction welding function has the advantage that reduces the work piece and install the number of times additional.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a lathe with friction welding function, includes the lathe body, still including setting up in the first clamping device of lathe body, setting up in the second clamping device of lathe body and setting up in the auxiliary device of lathe body, auxiliary device is including sliding the setting in the auxiliary table of lathe body, setting up in the cutting assembly of auxiliary table, setting up in the pressure compensation subassembly of auxiliary table.
By adopting the technical scheme, when two weldments are welded, one of the weldments is clamped on the first clamping device, the other weldment is clamped on the second clamping device, the second clamping device drives the weldments to move towards the first clamping device, the first clamping device drives the first weldment to rotate at a high speed, when the second clamping device drives the second weldment to move towards the first clamping device and contact with the first weldment, high-speed friction heat is generated between the end parts of the two weldments, mechanical energy is converted into heat energy, when the temperature reaches the melting point of the two weldments, oxides on the contact surface are removed by utilizing the friction heat, the end parts of the two weldments are mutually bonded under the action of upsetting force, after bonding, the first clamping device releases the weldments, the second clamping device drives the weldments to rotate, and meanwhile, the auxiliary table drives the cutting assembly to move towards the workpiece and turn the welding part of the two weldments, turning redundant welding fluxes formed at the welding seams to ensure that the circumferential surfaces of the welding seams are smooth and flat, and driving the pressure compensation assembly to apply thrust to the second clamping device through the auxiliary table when the second clamping device moves towards and extrudes the first clamping device, so that the pressure between two welding parts is enough, and the welding effect is ensured.
The utility model discloses further set up to: the pressure compensation assembly comprises a compensation table which is rotatably connected to the auxiliary table, the compensation table is connected with a push block, and a push plate which acts on the push block is fixedly arranged on the second clamping device.
Through adopting above-mentioned technical scheme, when second clamping device drove a weldment and moves towards another weldment, drive the compensation platform through the auxiliary station and remove to drive ejector pad butt in the push pedal, promote the push pedal through the ejector pad and move towards first clamping device, thereby exert thrust to second clamping device, compensate the upset power between two weldments, improve welding efficiency, thereby the welding is more firm.
The utility model discloses further set up to: the first clamping device comprises a mounting plate fixedly arranged on the machine tool body, a main shaft connected to the mounting plate, a first three-jaw chuck connected to the main shaft, and a heat-variable displacement detection assembly arranged on the mounting plate and located on one side of the main shaft.
By adopting the technical scheme, the first three-jaw chuck is used for clamping the weldment and driving the first weldment to rotate, and friction between two weldments generates heat during welding, the heat needs to be extremely large, at the moment, the heat can be transferred to the main shaft through the workpiece, so that the main shaft and the three-jaw chuck are heated greatly, and as the temperature changes by 1 ℃ every time at normal temperature, even high-quality materials have a displacement of 5 to 25 mm, and this problem also exists in machine tools, moreover, because the parts in the machine tool are made of different materials and have different heat-changing quantities, a plurality of uncertainty factors cause the complex change of the heat-changing of the machine tool, thereby influencing the precision of the machine tool, a heat displacement detection assembly is arranged on one side of the main shaft, and displacement amount detection can be performed on the main shaft, so that heat displacement compensation is performed on the auxiliary shaft through a control program, and machining accuracy is improved.
The utility model discloses further set up to: the heat variable displacement detection assembly comprises a support fixedly connected to the mounting plate and a contact heat variable displacement sensor connected to the support.
By adopting the technical scheme, the support is fixed on the mounting plate, the contact type heat displacement sensor is fixed on the support and is in contact with the side wall of the main shaft to realize displacement detection of the main shaft, the contact type heat displacement sensor is connected to a control system of a machine tool and feeds back a detection signal to the control system, and the control system responds according to the received detection signal and controls the displacement of the second clamping assembly to realize displacement compensation. Thereby improving the machining accuracy.
The utility model discloses further set up to: the second clamping device comprises a screw rod sliding table arranged on the surface of the machine tool body, an auxiliary shaft connected to the screw rod sliding table, and a second three-jaw chuck connected to the auxiliary shaft.
Through adopting above-mentioned technical scheme, the lead screw slip table comprises lead screw and slip table, and through the removal of motor lead screw drive slip table to drive the countershaft and remove for the main shaft, the second three-jaw chuck is used for the centre gripping weldment, thereby drives the weldment and removes and rotate.
The utility model discloses further set up to: the cutting assembly comprises a cutter tower which is rotatably arranged on the auxiliary table and a plurality of cutters which are connected to the circumference of the cutter tower.
By adopting the technical scheme, when welding is completed, welding surplus materials exist at the welding seam, the cutter is driven by the cutter tower to move towards the workpiece, and therefore the auxiliary shaft drives the workpiece to rotate and cut the side wall of the workpiece.
The utility model discloses further set up to: the support is provided with an emergency stop assembly, and the emergency stop assembly comprises a guide sleeve fixed on the support, an air cylinder connected in the guide sleeve and a brake block connected to a piston rod of the air cylinder.
By adopting the technical scheme, the axis of the guide sleeve is arranged along a certain diameter of the main shaft, when welding is completed, a welded workpiece needs to be transferred from the main shaft to the auxiliary shaft, so that the main shaft is required to stop rotating to complete connection of the main shaft and the auxiliary shaft, when the rotating speed of the main shaft is gradually reduced, the air cylinder pushes the brake block to move towards the main shaft, and a certain resistance is applied to the main shaft through the frictional contact between the brake block and the side wall of the main shaft, so that the stop of the main shaft is accelerated.
The utility model discloses further set up to: and a friction layer in contact with the brake block is arranged on the side wall of the main shaft.
By adopting the technical scheme, the friction layer can be made of materials such as gray iron alloy, ceramic, high-carbon double-aluminum alloy and the like, so that when the brake block and the side wall of the main shaft act, the damage to the side wall of the main shaft can be reduced.
The utility model discloses further set up to: the end surface of the brake block close to the main shaft is an arc surface attached to the side wall of the three-jaw chuck.
Through adopting above-mentioned technical scheme, when brake block and main shaft lateral wall contact, arcwall face and main shaft lateral wall butt through the brake block for both contact is softer, and the impact when reducing the contact makes the brake more stable.
To sum up, the utility model discloses a beneficial technological effect does:
1. when two weldments are welded, one of the weldments is clamped on a first clamping device, the other is clamped on a second clamping device, the second clamping device drives the weldments to move towards the first clamping device, the first clamping device drives the first weldment to rotate at a high speed, when the second clamping device drives the second weldment to move towards the first clamping device and contact with the first weldment, heat is generated by high-speed friction between the end parts of the two weldments, mechanical energy is converted into heat energy, when the temperature reaches the melting point of the two weldments, oxide on the contact surface is removed by utilizing the friction heat, the end parts of the two weldments are mutually bonded under the action of upsetting force, after bonding, the first clamping device releases the weldments, the second clamping device drives the weldments to rotate, meanwhile, an auxiliary table drives a cutting assembly to move towards a workpiece and turns the welding part of the two weldments, and redundant welding flux formed at the welding part is turned, the smooth and flat circumferential surface of the welding position is ensured, and when the second clamping device moves towards the first clamping device and extrudes, the auxiliary table drives the pressure compensation assembly to apply thrust to the second clamping device, so that the pressure between two welding pieces is enough, and the welding effect is ensured;
2. when second clamping device drives a weldment and moves towards another weldment, drive the compensation platform through the auxiliary station and remove to drive ejector pad butt on the push pedal, promote the push pedal through the ejector pad and remove towards first clamping device, thereby exert thrust to second clamping device, compensate the upset power between two weldments, improve welding efficiency, thereby the welding is more firm.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of the auxiliary device of the present invention.
In the figure, 1, a machine tool body; 2. a first holding device; 3. a second holding device; 4. an auxiliary device; 5. an auxiliary table; 6. a cutting assembly; 7. a pressure compensation assembly; 8. a compensation stage; 9. a push block; 10. pushing the plate; 11. mounting a plate; 12. a main shaft; 13. a first three-jaw chuck; 14. a hot variable displacement detection assembly; 15. a support; 16. a contact type thermal displacement sensor; 18. a counter shaft; 19. a second three-jaw chuck; 20. a turret; 21. a cutter; 22. and an emergency stop component.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, in order to disclose a machine tool with friction welding function of the present invention, the machine tool comprises a machine tool body 1, a first clamping device 2, a second clamping device 3 and an auxiliary device 4 are arranged on the machine tool body 1, the auxiliary device 4 comprises an auxiliary table 5 slidably arranged on the surface of the machine tool body 1, a cutting assembly 6 arranged on the auxiliary table 5 and a pressure compensation assembly 7 arranged on the auxiliary table 5; when two weldments are welded, one of the weldments is clamped on a first clamping device 2, the other is clamped on a second clamping device 3, the second clamping device 3 drives the weldments to move towards the first clamping device 2, the first clamping device 2 drives the first weldment to rotate at a high speed, when the second clamping device 3 drives the second weldment to move towards the first clamping device 2 and contact with the first weldment, high-speed friction heat is generated between the end parts of the two weldments, mechanical energy is converted into heat energy, when the temperature reaches the melting point of the two weldments, oxides on the contact surface are removed by utilizing the friction heat, the end parts of the two weldments are mutually bonded under the action of upsetting force, after bonding, the first clamping device 2 releases the weldments, the second clamping device 3 drives the weldments to rotate, meanwhile, an auxiliary table 5 drives a cutting assembly 6 to move towards the workpieces and turns the welding position of the two weldments, turning redundant welding fluxes formed at the welding seams to ensure that the circumferential surfaces of the welding seams are smooth and flat, and driving the pressure compensation assembly 7 to apply thrust to the second clamping device 3 through the auxiliary table 5 when the second clamping device 3 moves towards and extrudes the first clamping device 2, so that the pressure between two welding parts is large enough to ensure the welding effect.
The pressure compensation assembly 7 comprises a compensation table 8 which is rotatably connected to the auxiliary table 5, a push block 9 is connected to the compensation table 8 through a bolt, and a push plate 10 which acts with the push block 9 is fixedly arranged on the second clamping device 3; when second clamping device 3 drives a weldment and moves towards another weldment, drive compensation platform 8 through auxiliary station 5 and remove to drive ejector pad 9 butt on push pedal 10, promote push pedal 10 through ejector pad 9 and move towards first clamping device 2, thereby exert thrust to second clamping device 3, compensate the upset power between two weldments, improve welding efficiency, thereby the welding is more firm.
The first clamping device 2 comprises an installation plate 11 fixedly arranged on the machine tool body 1, the installation plate 11 is vertically arranged, a main shaft 12 is further arranged on the machine tool body 1, the end part of the main shaft 12 penetrates through the installation plate 11, a first three-jaw chuck 13 is connected to the end part of the main shaft 12, and the first clamping device further comprises a thermal change position detection assembly 14 which is fixed on the installation plate 11 through bolts and is positioned on one side of the main shaft 12; the first three-jaw chuck 13 is used for clamping weldments and driving the first weldments to rotate, friction between the two weldments generates heat during welding, the heat needs to be greatly increased, at the moment, the heat can be transferred to the main shaft 12 through a workpiece, so that the main shaft 12 and the three-jaw chuck are heated greatly, as the temperature changes by 1 ℃ at normal temperature, even if the temperature is a high-quality material, the displacement amount of 5-25 mm can exist, and the problem also exists on a machine tool, as the materials and the materials adopted by each part in the machine tool are different, the heat displacement amount is different, and various uncertain factors cause complex changes of the heat displacement of the machine tool, so that the precision of the machine tool is influenced, the heat displacement detection component 14 is arranged on one side of the main shaft 12, the main shaft 12 can be detected, so that the auxiliary shaft 18 can be subjected to heat displacement compensation through a process control sequence, and the machining precision is further improved.
The heat change position detection assembly 14 comprises a bracket 15 fixedly connected to the mounting plate 11 and a contact heat change position sensor 16 connected to the bracket 15; the support 15 is fixed on the mounting plate 11, the contact type heat displacement sensor 16 is fixed on the support 15 and is in contact with the side wall of the main shaft 12 to detect the displacement of the main shaft 12, the contact type heat displacement sensor 16 is connected to a control system of a machine tool and feeds back a detection signal to the control system, and the control system responds according to the received detection signal and controls the displacement of the second clamping assembly to realize displacement compensation. Thereby improving the machining accuracy.
The second clamping device 3 comprises a screw rod sliding table arranged on the surface of the machine tool body 1, an auxiliary shaft 18 connected with the screw rod sliding table and a second three-jaw chuck 19 connected with the auxiliary shaft 18; the lead screw sliding table is composed of a lead screw and a sliding table, the sliding table is driven to move through a motor lead screw, so that the auxiliary shaft 18 is driven to move relative to the main shaft 12, and the second three-jaw chuck 19 is used for clamping a weldment, so that the weldment is driven to move and rotate.
The cutting assembly 6 comprises a cutter tower 20 rotatably arranged on the auxiliary table 5 and a plurality of cutters 21 connected to the circumference of the cutter tower 20; when welding is completed, welding surplus materials exist at the welding seam, and the cutter 21 is driven by the tool turret 20 to move towards the workpiece, so that the auxiliary shaft 18 drives the workpiece to rotate and simultaneously cuts the side wall of the workpiece.
The emergency stop component 22 is further arranged on the support 15, the emergency stop component 22 comprises a guide sleeve fixed on the support 15, the guide sleeve is arranged in a hollow sleeve shape, and the emergency stop component further comprises an air cylinder connected in the guide sleeve and a brake block connected to a piston rod of the air cylinder; the axis of the guide sleeve is arranged along a certain diameter of the main shaft 12, when welding is completed, a welded workpiece needs to be transferred from the main shaft 12 to the auxiliary shaft 18, so that the main shaft 12 needs to stop rotating to complete connection of the main shaft 12 and the auxiliary shaft 18, when the rotating speed of the main shaft 12 is gradually reduced, the air cylinder pushes the brake block to move towards the main shaft 12, and a certain resistance is applied to the main shaft 12 through frictional contact between the brake block and the side wall of the main shaft 12, so that stopping of the main shaft 12 is accelerated.
A friction layer in contact with a brake block is arranged on the side wall of the main shaft 12; the friction layer can be made of materials such as gray iron alloy, ceramic, high-carbon double-aluminum alloy and the like, so that when the brake block and the side wall of the main shaft act, damage to the side wall of the main shaft 12 can be reduced. The end surface of the brake block close to the main shaft 12 is an arc surface attached to the side wall of the three-jaw chuck; when the brake block contacts with the side wall of the main shaft 12, the arc-shaped surface of the brake block is abutted against the side wall of the main shaft 12, so that the brake block and the main shaft are contacted more softly, the impact during contact is reduced, and the brake is more stable.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. A lathe with friction welding function, includes lathe body (1), its characterized in that: the automatic clamping device is characterized by further comprising a first clamping device (2) arranged on the machine tool body (1), a second clamping device (3) arranged on the machine tool body (1) and an auxiliary device (4) arranged on the machine tool body (1), wherein the auxiliary device (4) comprises an auxiliary table (5) arranged on the machine tool body (1) in a sliding mode, a cutting assembly (6) arranged on the auxiliary table (5) and a pressure compensation assembly (7) arranged on the auxiliary table (5).
2. A machine tool having a friction welding function according to claim 1, characterized in that: pressure compensation subassembly (7) are including rotating compensation platform (8) of connecting in auxiliary station (5), compensation platform (8) are connected with ejector pad (9), second clamping device (3) are fixed to be provided with push pedal (10) with ejector pad (9) effect.
3. A machine tool having a friction welding function according to claim 1, characterized in that: the first clamping device (2) comprises a mounting plate (11) fixedly arranged on the machine tool body (1), a main shaft (12) connected to the mounting plate (11), a first three-jaw chuck (13) connected to the main shaft (12), and a thermal displacement detection assembly (14) arranged on the mounting plate (11) and located on one side of the main shaft (12).
4. A machine tool having a friction welding function according to claim 3, characterized in that: the heat-variable displacement detection assembly (14) comprises a support (15) fixedly connected to the mounting plate (11) and a contact-type heat-variable displacement sensor (16) connected to the support (15).
5. A machine tool having a friction welding function according to claim 1, characterized in that: the second clamping device (3) comprises a screw rod sliding table arranged on the surface of the machine tool body (1), an auxiliary shaft (18) connected to the screw rod sliding table, and a second three-jaw chuck (19) connected to the auxiliary shaft (18).
6. A machine tool having a friction welding function according to claim 1, characterized in that: the cutting assembly (6) comprises a cutter tower (20) rotatably arranged on the auxiliary table (5) and a plurality of cutters (21) connected to the circumference of the cutter tower (20).
7. A machine tool with friction welding function according to claim 4, characterized in that: the bracket (15) is provided with an emergency stop component (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920265675.7U CN209887082U (en) | 2019-03-01 | 2019-03-01 | Machine tool with friction welding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920265675.7U CN209887082U (en) | 2019-03-01 | 2019-03-01 | Machine tool with friction welding function |
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| Publication Number | Publication Date |
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| CN209887082U true CN209887082U (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920265675.7U Active CN209887082U (en) | 2019-03-01 | 2019-03-01 | Machine tool with friction welding function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794770A (en) * | 2019-03-01 | 2019-05-24 | 津上精密机床（浙江）有限公司 | A kind of lathe with friction welding (FW) function |
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2019
- 2019-03-01 CN CN201920265675.7U patent/CN209887082U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794770A (en) * | 2019-03-01 | 2019-05-24 | 津上精密机床（浙江）有限公司 | A kind of lathe with friction welding (FW) function |
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