CN211248712U

CN211248712U - Precision bearing connecting rod welding tool

Info

Publication number: CN211248712U
Application number: CN201922471632.7U
Authority: CN
Inventors: 张伟; 王晓莲; 安永义; 王迪; 袁庆安; 尹跃
Original assignee: Zhengzhou Weichuang Machinery Manufacturing Co ltd
Current assignee: Zhengzhou Weichuang Machinery Manufacturing Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-14
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses an accurate bearing connecting rod welding frock relates to the accurate welding equipment field of bearing. The utility model discloses a base, be provided with bearing mount and connecting rod fixing device on the base, the stiff end of connecting rod fixing device passes through the bearing mount, install the universal frame on the base, the funnel anchor clamps are installed to the expansion end of universal frame, the centre gripping has into the welding fill on the funnel anchor clamps, the side intercommunication of advancing the welding fill has the entering welded tube of slope, advance the welding fill with advance the outside of welded tube all twine the parcel and install electric heating wire, electric heating wire connects power supply unit; when the inner ring of the bearing and the connecting rod are welded and fixed, the welding cannot enter the rotating position of the ball of the bearing.

Description

Precision bearing connecting rod welding tool

Technical Field

The utility model relates to an accurate welding equipment field of bearing, specific accurate bearing connecting rod welding frock that says so.

Background

The bearing is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision.

Most of the fixing modes of the bearing and the connecting rod adopt interference fit fixing, stepped sliding bearing fixing, set screw fixing or retaining ring fixing and the like. These fastening means, although convenient, are costly and not easy to maintain. The repair of the later stage of processing can be facilitated through the welded mode, however, the connecting rod and the inner ring of the bearing are welded, and the welding liquid is easily caused to enter the rotating part of the bearing, so that the condition of influence on the ball of the bearing is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a precision bearing connecting rod welding frock to the realization is when the inner ring with the bearing and connecting rod welded fastening, and the welding can not get into the ball turned position's of bearing purpose.

In order to achieve the above purpose, the utility model adopts the following technical means:

the utility model provides a precision bearing connecting rod welding frock, includes the base, be provided with bearing mount and connecting rod fixing device on the base, connecting rod fixing device's stiff end passes the bearing mount, install the universal frame on the base, funnel anchor clamps are installed to the expansion end of universal frame, the centre gripping has into to weld the fill on the funnel anchor clamps, the side intercommunication of advancing to weld the fill has the advancing welded tube of slope, advance to weld the fill with the outside of advancing the welded tube all twines the parcel and installs electric heating wire, electric heating wire connects power supply unit.

Preferably, the discharge end of the feeding welded pipe is of a trapezoid structure, a first horizontal chamfer is arranged on the bottom surface of the discharge end of the feeding welded pipe and is used for contacting with the side wall of the connecting rod, an arc-shaped surface structure is arranged on the contact surface of the first horizontal chamfer and the connecting rod, the discharge end of the feeding welded pipe faces towards one side of the bearing fixing frame, a second vertical chamfer is arranged on the plane, and the second vertical chamfer is used for contacting with the bearing inner ring fixed on the bearing fixing frame.

Further, the gimbal includes that vertical the installation is in telescopic link on the base, the top of telescopic link articulates through first articulated portion has the horizon bar, the vertical setting of the rotation axis of first articulated portion, the horizon bar with the one end that the telescopic link is relative articulates through second articulated portion has first montant, the axis level of second articulated portion and with the axis of first articulated portion sets up perpendicularly, the bottom of first montant articulates through third articulated portion has the second montant, the axis level of third articulated portion and with the axis of second articulated portion sets up perpendicularly, funnel anchor clamps horizontal installation be in the bottom of second montant.

Furthermore, the connecting rod fixing device comprises a vertical supporting rod installed on the base, a bearing sleeve is installed at the top end of the vertical supporting rod, the bearing sleeve faces the bearing fixing frame, a connecting rod frame is installed on an inner ring of the bearing sleeve, the connecting rod frame horizontally penetrates through the bearing fixing frame, and a connecting rod fastening device is installed on the connecting rod frame.

Still further, connecting rod fastener includes that a pair of symmetry is installed the strutting arrangement of connecting rod rest both sides, strutting arrangement is including installing fixing base on the connecting rod rest, the tip cover of fixing base is established and is installed and is propped tight piece, it is provided with the groove of inlaying that is used for the cover to establish to prop tight piece, the cover is equipped with compression spring on the fixing base, compression spring's both ends respectively in the connecting rod rest and prop the bottom surface of tight piece and connect, it has the connecting rod, two to prop the side of tight piece articulated there is the connecting rod, two strutting arrangement is last the connecting rod cross articulation is in on the connecting rod rest.

Furthermore, the side wall of the embedding groove is symmetrically provided with a pair of sliding grooves, and the end part of the fixing seat extends into the embedding groove and is provided with a limiting block embedded into the sliding grooves.

The utility model discloses at the in-process that uses, following beneficial effect has:

firstly, a bearing is clamped and fixed on a bearing fixing frame, the bearing fixing frame adopts a vertically clamped bearing fixing frame, the rotation axis of the bearing is horizontal and is coincided with the axis of the fixed end of a connecting rod fixing device, a hollow connecting rod penetrates into the fixed end of the connecting rod fixing device, the connecting rod is inserted into an inner ring of the bearing, a universal frame is adjusted, the discharge end of a welding inlet pipe communicated with a welding inlet hopper faces to the connecting position of the connecting rod and the inner ring of the bearing, the discharge port of the welding inlet pipe is inclined, one end of the welding inlet pipe is contacted with the inner ring of the bearing, the other end of the welding inlet pipe is contacted with the outer wall of the connecting rod, a triangular cavity is formed among the discharge end of the welding inlet pipe, the outer wall of the connecting rod and the inner ring of the bearing, power supply equipment of an electric heating wire is opened, the welding inlet hopper and the welding inlet pipe are heated by the electric heating wire, and the connecting rod is continuously rotated, part of the welding liquid can move out of the triangular cavity and is shaped after being cooled, the connecting rod and the bearing inner ring are fixed, and the connecting rod is continuously rotated, so that the welding liquid completely covers the contact part of the connecting rod and the bearing inner tube, and the welding is completed. Like this, through the process of accurate welding of executing, let the welding liquid can only remain between connecting rod and bearing inner ring, the in-process of welding at the feeding is avoided in blockking of rethread inlet pipe, flows in the ball rotation portion of bearing, the effectual influence of avoiding the welding liquid to bearing ball rotation portion.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a partially enlarged structural diagram of a portion B in fig. 1.

Fig. 4 is a schematic view of the mounting structure of the connecting rod and the connecting rod frame of the present invention.

Fig. 5 is a partially enlarged schematic view of a portion C in fig. 1.

The device comprises a base 1, a bearing fixing frame 2, a connecting rod 3, a vertical supporting rod 31, a bearing sleeve 32, a connecting rod 33, a universal frame 4, a telescopic rod 41, a first hinge part 42, a horizontal rod 43, a second hinge part 44, a first vertical rod 45, a third hinge part 46, a second vertical rod 47, a funnel clamp 5, a welding hopper 6, a welding pipe 7, a first horizontal chamfer 8, a supporting device 10, a fixing seat 101, a limiting block 1011, a tensioning block 102, an embedding groove 103, a compression spring 104, a connecting rod 105, a sliding groove 106 and a vertical chamfer 11.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

Please refer to fig. 1, fig. 2 and fig. 3, which show that a precision bearing connecting rod welding tool includes a base 1, a bearing fixing frame 2 and a connecting rod fixing device 3 are arranged on the base 1, a fixed end of the connecting rod fixing device 3 penetrates through the bearing fixing frame 2, a gimbal 4 is mounted on the base 1, a funnel clamp 5 is mounted at a movable end of the gimbal 4, a welding hopper 6 is clamped on the funnel clamp 5, the welding hopper 6 is used for containing welding liquid, a side surface of the welding hopper 6 is communicated with an inclined welding pipe 7, the welding pipe 7 is used for guiding the welding liquid in the welding hopper 6, the welding hopper 6 and the welding pipe 7 are wound and wrapped with electric heating wires, and the electric heating wires are connected with a power supply device.

In this embodiment, the bearing is clamped and fixed on the bearing fixing frame 2, the bearing fixing frame 2 adopts the bearing fixing frame 2 which is vertically clamped, the rotation axis of the bearing is horizontal and is coincided with the axis of the fixed end of the connecting rod fixing device 3, the hollow connecting rod penetrates into the fixed end of the connecting rod fixing device 3, the connecting rod is inserted into the inner ring of the bearing, the universal frame 4 is adjusted, the discharge end of the welding inlet pipe 7 which is communicated with the welding inlet hopper 6 faces to the connecting position of the connecting rod and the inner ring of the bearing, the discharge port of the welding inlet pipe 7 is inclined, one end of the welding inlet pipe 7 is contacted with the inner ring of the bearing, the other end is contacted with the outer wall of the connecting rod, a triangular cavity is formed among the discharge end of the welding inlet pipe 7, the outer wall of the connecting rod and the inner ring of the bearing, the power supply equipment of the electric heating wire is opened, the welding inlet hopper 6, the welding liquid flows between the connecting rod and the bearing inner ring through the welding inlet pipe 7, the connecting rod is continuously rotated, part of the welding liquid can move out of the triangular cavity to be cooled and then is shaped to fix the connecting rod and the bearing inner ring, and the connecting rod is continuously rotated to completely cover the contact part of the connecting rod and the bearing inner pipe with the welding liquid, so that welding is completed. Like this, through the process of accurate welding of executing, let the welding liquid can only remain between connecting rod and bearing inner ring, the in-process of welding at the feeding is avoided in blockking of rethread inlet pipe, flows in the ball rotation portion of bearing, the effectual influence of avoiding the welding liquid to bearing ball rotation portion.

Example 2

On the basis of embodiment 1, the discharge end that advances welded pipe 7 sets up to trapezium structure, the discharge end bottom surface that advances welded pipe 7 is provided with first horizontal chamfer 8 and is used for contacting with the connecting rod lateral wall, first horizontal chamfer 8 with the contact surface of connecting rod is provided with ARC structure, advance welded pipe 7 discharge end orientation one side of bearing mount 2 is provided with the vertical chamfer 11 of planar second, the vertical chamfer 11 of second be used for with the bearing inner ring contact of fixing on the bearing mount 2.

In this embodiment, utilize first horizontal chamfer 8 to let into the contact of welded tube 7 and connecting rod more match, utilize the vertical chamfer 11 of second, let into the contact of welded tube 7 and bearing inner ring and more laminate, further avoid the welding liquid to flow to the in-process of connecting rod and bearing inner ring from advancing welded tube 7, the condition that the welding liquid got into bearing ball rotation portion appears.

Example 3

On the basis of embodiment 2, the universal frame 4 includes the telescopic link 41 vertically installed on the base 1, the top end of the telescopic link 41 is articulated with the horizontal rod 43 through the first articulated portion 42, the rotation axis of the first articulated portion 42 is vertically arranged, the horizontal rod 43 and the opposite end of the telescopic link 41 are articulated with the first vertical rod 45 through the second articulated portion 44, the axis level of the second articulated portion 44 is arranged perpendicular to the axis of the first articulated portion 42, the bottom end of the first vertical rod 45 is articulated with the second vertical rod 47 through the third articulated portion 46, the axis level of the third articulated portion 46 is arranged perpendicular to the axis of the second articulated portion 44, and the funnel clamp 5 is horizontally installed at the bottom end of the second vertical rod 47.

In the present embodiment, the position of the welding hopper 6 can be adjusted by the gimbal 4, the height of the welding hopper 6 can be adjusted by the telescopic rod 41, the welding hopper 6 can be moved in parallel in the horizontal direction by the first hinge portion 42, the welding hopper 6 can be rotated around the horizontal rod 43 by the second hinge portion 44, and the welding hopper 6 can be moved in the direction away from or close to the bearing holder 2 by the third hinge portion 46.

Example 4

On the basis of embodiment 3, please refer to fig. 4 and 5, in which the connecting rod fixing device 3 includes a vertical supporting rod 31 installed on the base 1, a bearing sleeve 32 is installed at the top end of the vertical supporting rod 31, the bearing sleeve 32 is disposed toward the bearing fixing frame 2, a connecting rod rack 33 is installed on an inner ring of the bearing sleeve 32, the connecting rod rack 33 horizontally penetrates through the bearing fixing frame 2, and a connecting rod fastening device is installed on the connecting rod rack 33; the connecting rod fastening device comprises a pair of supporting devices 10 symmetrically arranged on two sides of the connecting rod frame 33, each supporting device 10 comprises a fixed seat 101 arranged on the connecting rod frame 33, a tensioning block 102 is sleeved on the end portion of each fixed seat 101, each tensioning block 102 is provided with an embedding groove 103 used for sleeving, a compression spring 104 is sleeved on each fixed seat 101, two ends of each compression spring 104 are respectively connected with the bottom surfaces of the connecting rod frame 33 and the corresponding tensioning block 102, the side surfaces of the tensioning blocks 102 are hinged with connecting rods 105, and the connecting rods 105 on the two supporting devices 10 are hinged on the connecting rod frame 33 in a crossed mode; the side wall of the embedding groove 103 is symmetrically provided with a pair of sliding grooves 106, and the end of the fixing seat 101 extends into the embedding groove 103 and is provided with a limiting block 1011 embedded into the sliding grooves 106.

In this embodiment, after the hollow connecting rod is mounted on the connecting rod frame 33, the extending ends of the two connecting rods 105 are pressed, the supporting block 102 is moved towards the connecting rod frame 33, the hollow connecting rod is inserted into the connecting rod frame 33, the supporting block 102 is arranged in the hollow connecting rod, the connecting rod 105 is released, the supporting block 102 is abutted against the inner wall of the hollow connecting rod under the action of the compression spring 104, so that the connecting rod frame 33 and the hollow connecting rod are relatively fixed by using friction between the supporting block 102 and the inner wall of the hollow connecting rod, the hollow connecting rod can rotate along with the connecting rod frame 33, and thus, the hollow connecting rod can rotate only by rotating the connecting rod frame 33.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The utility model provides a precision bearing connecting rod welding frock which characterized in that: including base (1), be provided with bearing mount (2) and connecting rod fixing device (3) on base (1), the stiff end of connecting rod fixing device (3) passes bearing mount (2), install universal frame (4) on base (1), funnel anchor clamps (5) are installed to the expansion end of universal frame (4), funnel anchor clamps (5) are gone up the centre gripping and are had into to weld and fight (6), the side intercommunication that advances to weld and fight (6) has advancing welded tube (7) of slope, advance to weld fight (6) with the outside of advancing welded tube (7) all twines the parcel and installs electric heating wire, electric heating wire connects power supply unit.

2. The precision bearing connecting rod welding tool of claim 1, characterized in that: advance the discharge end of welded tube (7) and set up to trapezium structure, the discharge end bottom surface of advancing welded tube (7) is provided with first horizontal chamfer (8) and is used for contacting with the connecting rod lateral wall, first horizontal chamfer (8) with the contact surface of connecting rod is provided with ARC structure, advance welded tube (7) discharge end orientation one side of bearing mount (2) is provided with the vertical chamfer of planar second (11), the vertical chamfer of second (11) be used for with fixed bearing inner ring contact on bearing mount (2).

3. The precision bearing connecting rod welding tool of claim 1, characterized in that: the universal frame (4) comprises a telescopic rod (41) vertically installed on the base (1), the top end of the telescopic rod (41) is hinged to a horizontal rod (43) through a first hinged portion (42), the rotation axis of the first hinged portion (42) is vertically arranged, the horizontal rod (43) is hinged to a first vertical rod (45) through a second hinged portion (44) at one end, opposite to the telescopic rod (41), of the second hinged portion (44), the axis of the second hinged portion (44) is horizontal and perpendicular to the axis of the first hinged portion (42), the bottom end of the first vertical rod (45) is hinged to a second vertical rod (47) through a third hinged portion (46), the axis of the third hinged portion (46) is horizontal and perpendicular to the axis of the second hinged portion (44), and the funnel clamp (5) is horizontally installed at the bottom end of the second vertical rod (47).

4. The precision bearing connecting rod welding tool of claim 1, characterized in that: connecting rod fixing device (3) is including installing vertical branch (31) on base (1), bearing housing (32) are installed on the top of vertical branch (31), bearing housing (32) orientation bearing mount (2) set up, just connecting rod frame (33) are installed to the inner ring of bearing housing (32), connecting rod frame (33) level is passed bearing mount (2), install connecting rod fastener on connecting rod frame (33).

5. The precision bearing connecting rod welding tool of claim 4, wherein: connecting rod fastener includes that a pair of symmetry is installed strutting arrangement (10) of connecting rod frame (33) both sides, strutting arrangement (10) are including installing fixing base (101) on connecting rod frame (33), the tip cover of fixing base (101) is established and is installed and is propped tight piece (102), it is provided with the groove (103) of inlaying that is used for the cover to establish to prop tight piece (102), the cover is equipped with compression spring (104) on fixing base (101), the both ends of compression spring (104) respectively in connecting rod frame (33) and prop the bottom surface of tight piece (102) and connect, the side of propping tight piece (102) articulates there is connecting rod (105), two strutting arrangement (10) last connecting rod (105) cross articulation be in on connecting rod frame (33).

6. The precision bearing connecting rod welding tool of claim 5, wherein: the side wall of inlaying groove (103) is provided with a pair of sliding tray (106) symmetrically, the tip of fixing base (101) stretches into inlay groove (103) and be provided with the embedding stopper (1011) of sliding tray (106).