CN214161757U - Positioning and centering laser welding device for sintering alloy grinding head cutter bar - Google Patents
Positioning and centering laser welding device for sintering alloy grinding head cutter bar Download PDFInfo
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- CN214161757U CN214161757U CN202022925375.2U CN202022925375U CN214161757U CN 214161757 U CN214161757 U CN 214161757U CN 202022925375 U CN202022925375 U CN 202022925375U CN 214161757 U CN214161757 U CN 214161757U
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- grinding head
- collet chuck
- cutter handle
- clamping
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Abstract
A positioning and centering laser welding device for a sintered alloy grinding head cutter bar comprises a workbench, and a positioning and centering clamping mechanism and a laser welding mechanism which are arranged on the workbench, wherein the positioning and centering clamping mechanism is used for clamping the cutter bar and a grinding head respectively and enabling the cutter bar and the grinding head to be coaxially distributed; the utility model discloses can improve the welding efficiency and the precision of sintered alloy bistrique and cutter arbor.
Description
Technical Field
The utility model relates to a laser welding field, specific location centering laser welding set for sintered alloy bistrique cutter arbor that says so.
Background
In the process of combining the sintered alloy grinding head and the cutter bar, a base at one end of the sintered alloy grinding head is required to be in butt joint with the cutter bar, and a laser machine is used for annular welding. Due to the lack of a necessary auxiliary welding tool, the base of the grinding head and the cutter bar are often manually centered, spot-welded and then annularly welded in the prior art.
On one hand, the welding mode has high operation difficulty, long centering time and low efficiency; on the other hand, because of the bistrique sintering back, can not guarantee the straightness that hangs down of base and bistrique face of cylinder central line, even the manual work is aimed at the back, still can have bistrique face of cylinder and cutter arbor face of cylinder central line decentraction, influence product result of use, need further carry out cutting adjustment concentricity to the bistrique, cause the waste of cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a location centering laser welding set for sintered alloy bistrique cutter arbor improves the welding efficiency and the precision of sintered alloy bistrique and cutter arbor.
In order to solve the technical problem, the utility model discloses a concrete scheme does: a positioning and centering laser welding device for a sintered alloy grinding head cutter bar comprises a workbench, and a positioning and centering clamping mechanism and a laser welding mechanism which are arranged on the workbench, wherein the positioning and centering clamping mechanism is used for clamping the cutter bar and a grinding head respectively and enabling the cutter bar and the grinding head to be coaxially distributed;
the positioning, centering and clamping mechanism comprises a base, a cutter bar clamping unit and a grinding head clamping unit, wherein the base is arranged on the workbench at intervals; the cutter bar clamping unit comprises a first lengthened cutter handle penetrating through the cavity, the middle part of the first lengthened cutter handle is arranged in a first rolling bearing seat arranged on the base in a rotating fit mode, one end of the first lengthened cutter handle is in transmission connection with the motor through a coupler, the other end of the first lengthened cutter handle is provided with a first collet chuck and a first clamping nut, a first limiting ejector pin is further arranged in an inner cavity of the first lengthened cutter handle, and the first limiting ejector pin is inserted into the first collet chuck, so that a cutter bar clamping part is formed by the rest inside the first collet chuck; the grinding head clamping unit comprises a second lengthened cutter handle penetrating through the cavity, the second lengthened cutter handle and the first lengthened cutter handle are coaxially distributed, the middle of the second lengthened cutter handle is installed in a linear bearing seat arranged on the base in a rotating fit mode, a second rolling bearing seat is installed at one end of the second lengthened cutter handle in a rotating fit mode, a tool clamp used for pushing the second rolling bearing seat towards the direction of the cutter rod clamping unit is arranged on the base, a second collet chuck and a second clamping nut are arranged at the other end of the second lengthened cutter handle, a second limiting ejector pin is further arranged in an inner cavity of the second lengthened cutter handle, and the second limiting ejector pin is inserted into the second collet chuck, so that a grinding head clamping portion is formed by the remaining portion inside the second collet chuck.
Preferably, one end of the first lengthened cutter handle is provided with a first external thread matched with the first clamping nut, the other end of the first lengthened cutter handle is provided with a first internal thread matched with the first limiting ejector pin in a threaded connection mode, one end of the second lengthened cutter handle is provided with a second external thread matched with the second clamping nut, and the other end of the second lengthened cutter handle is provided with a second internal thread matched with the second limiting ejector pin in a threaded connection mode.
Preferably, the first rolling bearing seat is in a concave shape, and two first rolling bearings for matching and installing the first lengthened cutter handle are arranged on the first rolling bearing seat.
Preferably, the first collet chuck and the second collet chuck are in a shuttle shape, a plurality of strip-shaped grooves are formed in the cylinder walls of the first collet chuck and the second collet chuck along the axial direction of the first collet chuck and the second collet chuck, one ends of the first collet chuck and the second collet chuck are respectively inserted into the corresponding first lengthened cutter handle or the corresponding second lengthened cutter handle, and the other ends of the first collet chuck and the second collet chuck are respectively located outside the corresponding first lengthened cutter handle or the corresponding second lengthened cutter handle and are matched with the conical surfaces in the corresponding first clamping nut or the corresponding second clamping nut.
Preferably, the laser welding mechanism includes laser welding head and the line rail system that is used for adjusting the laser welding head, the line rail system has the first horizontal line rail of setting on the workstation, slide and set up the first slider on first horizontal line rail, set up on first slider and the second horizontal line rail that the first horizontal line rail of perpendicular to distributes, slide and set up the second slider on second horizontal line rail, set up the vertical line rail on the second slider and slide and set up the third slider on vertical line rail, third slider and laser welding head fixed connection.
The cutter bar clamping unit and the grinding head clamping unit in the positioning centering clamping mechanism have high coaxiality, can ensure the coaxiality requirement of a product, and can replace different collets for assembly according to the size of the product; limiting thimbles are arranged in the cutter bar clamping unit and the grinding head clamping unit, so that the accuracy of the welding position is ensured after each installation; the cutter bar and the grinding head are arranged by taking the outer contour as positioning, the coaxiality cannot be influenced even if the outer contour of the grinding head is not perpendicular to the base, further cutting machining of the grinding head is not needed subsequently, the yield is improved, and the economic benefit is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a positioning, centering and clamping mechanism of the present invention;
fig. 3 is a schematic cross-sectional structural view of a positioning, centering and clamping mechanism part in the present invention;
FIG. 4 is an enlarged partial view of portion X of FIG. 3;
the labels in the figure are: A. the laser welding device comprises a laser welding mechanism, 1, a first horizontal linear rail, 2, a laser welding head, 3, a second horizontal linear rail, 4, a third sliding block, 5, a vertical linear rail, 6, a second sliding block, 7, a first sliding block, B, a positioning and centering clamping mechanism, 8, a grinding head clamping unit, 801, a tool clamp, 802, a second rolling bearing seat, 803, a second rolling bearing, 804, a linear bearing seat, 805, a linear bearing, 806, a second lengthened cutter handle, 807, a second limiting ejector pin, 808, a second clamping nut, 809, a second collet chuck, 9, a cutter rod clamping unit, 901, a first collet chuck, 902, a first clamping nut, 903, a first limiting ejector pin, a first lengthened cutter handle, 904, a first rolling bearing, 906, a first rolling bearing seat, 907, a coupler, 908, a motor, 10, a grinding head, 11, a cutter rod, 12, a base, C and a workbench.
Detailed Description
As shown in FIG. 1, the utility model discloses a location centering laser welding device for sintered alloy bistrique cutter arbor, including workstation C and location centering fixture B and the laser welding mechanism A of setting on workstation C. The positioning and centering clamping mechanism B is used for clamping the cutter bar 11 and the grinding head 10 respectively and enabling the cutter bar 11 and the grinding head 10 to be distributed coaxially, and the laser welding mechanism A is used for carrying out laser welding on the cutter bar 11 and the grinding head 10 clamped by the positioning and centering mechanism.
Laser welding mechanism A includes laser welding head 2 and is used for adjusting the line rail system of laser welding head 2, the line rail system has the first horizontal line rail 1 of setting on workstation C, slide and set up first slider 7 on first horizontal line rail 1, set up on first slider 7 and the first horizontal line rail 3 of the first horizontal line rail 1 distribution of perpendicular to, slide and set up second slider 6 on second horizontal line rail 3, set up vertical line rail 5 on second slider 6 and slide and set up third slider 4 on vertical line rail 5, third slider 4 and laser welding head 2 fixed connection. Lead screw nut structures are arranged between the linear rails and the corresponding sliders, and lead screw motors for driving the lead screws to rotate are arranged at the end portions of the linear rails, so that the sliders are driven to reciprocate along the length directions of the corresponding linear rails through forward and reverse rotation of the lead screw motors, and the laser welding head 2 can move in a three-dimensional space to adapt to the positions of a cutter bar 11 and a grinding head 10 to be welded.
Referring to fig. 2 and 3, the positioning, centering and clamping mechanism B of the present invention includes a base 12 disposed on the worktable C at an interval, and a cutter bar clamping unit 9 and a grinding head clamping unit 8 disposed on the base 12. The cutter bar clamping unit 9 and the grinding head clamping unit 8 are coaxially arranged oppositely and are used for clamping and fixing the cutter bar 11 and the grinding head 10 respectively so as to keep the coaxiality of the product.
The cutter bar clamping unit 9 comprises a first lengthened cutter handle 904 penetrating through a cavity, the middle part of the first lengthened cutter handle 904 is installed in a concave first rolling bearing seat 906 in a rotating fit mode, and two first rolling bearings 905 for the first lengthened cutter handle 904 to rotate and fit are arranged at the top of the first rolling bearing seat 906 at intervals. The left end of the first elongated tool shank 904 is in transmission connection with a motor 908 fixed on the base 12 through a coupling 907, so that the motor 908 drives the first elongated tool shank 904 to rotate. As shown in FIG. 4, the interior cavity at the right end of the first elongated shank 904 is tapered and a first collet 901 is provided in the tapered section. The first collet 901 is in a shuttle shape with two thin ends and a thick middle, and a plurality of strip-shaped grooves are formed in the first collet 901 along the axial direction thereof. The left side of the first collet 901 is fitted with a divergent section inner cavity at the right end of the first lengthened shank 904, and the right side of the first collet 901 is distributed outside the first lengthened shank 904. The periphery of the right end of the first lengthened cutter handle 904 is provided with external threads and is in threaded connection with a first clamping nut 902. The first clamping nut 902 has a conical hole matching with the right side of the first collet 901, and after the first clamping nut 902 is screwed and matched with the first lengthened cutter handle 904, the strip-shaped hole on the first collet 901 is compressed, and then the cutter bar 11 inserted in the first collet 901 is clamped and fixed.
A first limiting thimble 903 is further arranged in the first lengthened cutter handle 904, and the right end of the first limiting thimble 903 extends into the first barrel clamp 901, so that a right-side vacant part in the first barrel clamp 901 forms a cutter bar clamping part for clamping the cutter bar 11. The right end of the first limiting thimble 903 is in threaded connection with an internal thread in an inner cavity of the right end of the first lengthened cutter handle 904, so that the left end of the first limiting thimble 903 can be adjusted to extend into the first collet 901 by rotating the first limiting thimble 903, and positioning and clamping of cutter bars 11 of different specifications are further met.
The grater holding unit 8 includes a second elongated shank 806 having a through cavity, the second elongated shank 806 being coaxially disposed with the first elongated shank 904. The middle part of the second lengthened cutter handle 806 is installed in the linear bearing seat 804 arranged on the base 12 in a rotating fit manner, and a linear bearing 805 which is used for the second lengthened cutter handle 806 to rotate and slide along the axial direction of the linear bearing seat 804 is arranged in the linear bearing seat 804. A second rolling bearing seat 802 is rotatably fitted at the right end of the second lengthened cutter handle 806, and a second rolling bearing 803 for rotatably fitting the second lengthened cutter handle 806 is arranged in the second rolling bearing seat 802. A tool holder 801 for pushing the second rolling bearing holder 802 toward the holder holding unit 9 is provided on the base 12. As shown in fig. 3, when the handle of the tooling clamp 801 is pressed down, the ram of the tooling clamp 801 disengages from the second rolling bearing housing 802. At this time, the second lengthened tool shank 806 can be pushed to move right, so that the clamping space of the grinding head 10 and the tool shank 11 is opened. As shown in fig. 2, after the grinding head 10 and the tool bar 11 are clamped, the handle of the clamp 801 is lifted, the pressure head of the clamp 801 rotates and pushes the second lengthened tool shank 806 towards the first lengthened tool shank 904 through the second rolling bearing seat 802, so that the respectively clamped tool bar 11 and grinding head 10 are pressed and ready for welding. The common fixture in the art for the above-mentioned tooling clamp 801 will not be described in detail herein.
A second collet 809 and a second clamping nut 808 are arranged at the left end of the second lengthened cutter handle 806, a second limiting thimble 807 is further arranged in the inner cavity of the second lengthened cutter handle 806, and the second limiting thimble 807 is inserted in the second collet 809, so that the rest inside the second collet 809 forms a clamping part of the grinding head 10. The left end of the second elongated tool holder 806 is substantially symmetrical to the right end of the first elongated tool holder 904, and will not be described again. The difference is that the left space in the second collet 809 not occupied by the second limiting ejector pin 807 forms a grinding head clamping portion for clamping engagement of the grinding head 10.
The utility model discloses an implementation as follows:
firstly, a handle of a pressing tool clamp 801 is pressed down, the second lengthened tool shank 806 is pulled to move right, the first collet chuck 901 and the second collet chuck 809 are pulled apart by a sufficient distance, the tool bar 11 is inserted into the first collet chuck 901 to be in contact positioning with the first limiting thimble 903, and the first clamping nut 902 is screwed tightly to complete clamping of the tool bar 11. The base end of the grinding head 10 is arranged in a second collet 809 with an outward direction to be in contact positioning with a second limiting thimble 807, and a second clamping nut 808 is screwed tightly to finish clamping the grinding head 10. And pushing the second lengthened cutter handle 806 to move left to enable the cutter rod 11 and the grinding head 10 to contact, lifting a clamping 801 handle upwards to enable a pressure head of the clamping to press the second rolling bearing seat 802, and positioning, centering and clamping the cutter rod 11 and the grinding head 10.
The welding position is adjusted through the first horizontal linear rail 1 and the second horizontal linear rail 3, and the focal length of the laser welding head 2 is adjusted through the vertical linear rail 5. After the adjustment is finished, the laser welding head 2 is firstly spot-welded to a point, so that the cutter bar 11 is connected with the grinding head 10. After the motor 908 drives the first lengthened cutter handle 904 to rotate through the coupler 907, the cutter bar 11, the grinding head 10 and the second lengthened cutter handle 806 all rotate along with the first lengthened cutter handle, and the rotation is stopped after 180 degrees. And the laser welding head 2 performs secondary dotting welding to finish dotting. Subsequently, the motor 908 rotates 360 °, and the laser welding head 2 performs synchronous welding to complete full outer circle welding.
After the welding is finished, the handle 801 is pressed down, the first clamping nut 902 and the second clamping nut 808 are unscrewed, the second lengthened cutter handle 806 is pulled away towards the right side, and then the welded cutter bar 11 and the grinding head 10 are taken down. The position of the laser welding head 2 does not need to be adjusted after the subsequent products are clamped.
Claims (5)
1. The utility model provides a location centering laser welding set for sintered alloy bistrique cutter arbor which characterized in that: the laser welding device comprises a workbench (C), and a positioning and centering clamping mechanism (B) and a laser welding mechanism (A) which are arranged on the workbench (C), wherein the positioning and centering clamping mechanism (B) is used for respectively clamping a cutter bar (11) and a grinding head (10) and enabling the cutter bar (11) and the grinding head (10) to be coaxially distributed, and the laser welding mechanism (A) is used for carrying out laser welding on the cutter bar (11) and the grinding head (10) clamped by the positioning and centering mechanism;
the positioning, centering and clamping mechanism (B) comprises a base (12) arranged on the workbench (C) at intervals, and a cutter bar clamping unit (9) and a grinding head clamping unit (8) which are arranged on the base (12); the cutter bar clamping unit (9) comprises a first lengthened cutter handle (904) penetrating through a cavity, the middle part of the first lengthened cutter handle (904) is installed in a first rolling bearing seat (906) arranged on the base (12) in a rotating fit mode, one end of the first lengthened cutter handle (904) is in transmission connection with a motor (908) through a coupler (907), a first collet chuck (901) and a first clamping nut (902) are arranged at the other end of the first lengthened cutter handle (904), a first limiting ejector pin (903) is further arranged in an inner cavity of the first lengthened cutter handle (904), and the first limiting ejector pin (903) is inserted into the first collet chuck (901), so that a cutter bar clamping part is formed by the residual part inside the first collet chuck (901); the grinding head clamping unit (8) comprises a second lengthened cutter handle (806) with a through cavity, the second lengthened cutter handle (806) and the first lengthened cutter handle (904) are coaxially distributed, the middle part of the second lengthened cutter handle (806) is rotatably installed in a linear bearing seat (804) arranged on the base (12) in a matched mode, one end of the second lengthened cutter handle (806) is rotatably installed with a second rolling bearing seat (802) in a matched mode, the grinding head clamping device is characterized in that a tool clamp (801) used for pushing the second rolling bearing seat (802) towards the direction of the tool bar clamping unit (9) is arranged on the base (12), a second collet chuck (809) and a second clamping nut (808) are arranged at the other end of the second lengthened tool shank (806), a second limiting ejector pin (807) is further arranged in an inner cavity of the second lengthened tool shank (806), and the second limiting ejector pin (807) is inserted into the second collet chuck (809), so that a grinding head clamping part is formed by the remaining part inside the second collet chuck (809).
2. The positioning and centering laser welding device for the sintered alloy grinding head cutter bar according to claim 1, characterized in that: one end of the first lengthened cutter handle (904) is provided with a first external thread matched with the first clamping nut (902), the other end of the first lengthened cutter handle is provided with a first internal thread matched with the first limiting thimble (903) in a threaded connection mode, one end of the second lengthened cutter handle (806) is provided with a second external thread matched with the second clamping nut (808), and the other end of the second lengthened cutter handle is provided with a second internal thread matched with the second limiting thimble (807) in a threaded connection mode.
3. The positioning and centering laser welding device for the sintered alloy grinding head cutter bar according to claim 1, characterized in that: the first rolling bearing seat (906) is in a concave shape, and two first rolling bearings (905) for the first lengthened cutter handle (904) to be installed in a matched mode are arranged on the first rolling bearing seat (906).
4. The positioning and centering laser welding device for the sintered alloy grinding head cutter bar according to claim 1, characterized in that: the first collet chuck (901) and the second collet chuck (809) are in a shuttle shape, a plurality of strip-shaped grooves are formed in the cylinder walls of the first collet chuck (901) and the second collet chuck (809) along the axial direction of the first collet chuck and the second collet chuck, one end of the first collet chuck (901) and one end of the second collet chuck (809) are respectively inserted into the corresponding first lengthened cutter handle (904) or the corresponding second lengthened cutter handle (806), and the other end of the first collet chuck (901) and the other end of the second collet chuck (809) are respectively located outside the corresponding first lengthened cutter handle (904) or the corresponding second lengthened cutter handle (806) and are matched with conical surfaces in the corresponding first clamping nut (902) or the corresponding second clamping nut (808).
5. The positioning and centering laser welding device for the sintered alloy grinding head cutter bar according to claim 1, characterized in that: laser welding mechanism (A) is including laser welder head (2) and the line rail system that is used for adjusting laser welder head (2), the line rail system has first horizontal line rail (1) of setting on workstation (C), first slider (7) of slip setting on first horizontal line rail (1), set up on first slider (7) and second horizontal line rail (3) that first horizontal line rail (1) of perpendicular to distributes, second slider (6) of slip setting on second horizontal line rail (3), vertical line rail (5) and third slider (4) of slip setting on vertical line rail (5) on second slider (6), third slider (4) and laser welder head (2) fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022925375.2U CN214161757U (en) | 2020-12-07 | 2020-12-07 | Positioning and centering laser welding device for sintering alloy grinding head cutter bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022925375.2U CN214161757U (en) | 2020-12-07 | 2020-12-07 | Positioning and centering laser welding device for sintering alloy grinding head cutter bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214161757U true CN214161757U (en) | 2021-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022925375.2U Active CN214161757U (en) | 2020-12-07 | 2020-12-07 | Positioning and centering laser welding device for sintering alloy grinding head cutter bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214161757U (en) |
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2020
- 2020-12-07 CN CN202022925375.2U patent/CN214161757U/en active Active
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