CN113492258A - Spline shaft fork friction welding universal fixture - Google Patents
Spline shaft fork friction welding universal fixture Download PDFInfo
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- CN113492258A CN113492258A CN202110742741.7A CN202110742741A CN113492258A CN 113492258 A CN113492258 A CN 113492258A CN 202110742741 A CN202110742741 A CN 202110742741A CN 113492258 A CN113492258 A CN 113492258A
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- spline shaft
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- 238000003466 welding Methods 0.000 title claims abstract description 39
- 102000004315 Forkhead Transcription Factors Human genes 0.000 claims abstract description 59
- 108090000852 Forkhead Transcription Factors Proteins 0.000 claims abstract description 59
- 230000007246 mechanism Effects 0.000 claims description 17
- 210000000078 claw Anatomy 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
- B23K20/126—Workpiece support, i.e. backing or clamping
Abstract
The invention relates to a friction welding universal fixture for a spline shaft fork, which comprises a shaft fork head end fixture and a shaft fork pipe end fixture, wherein the shaft fork head end fixture and the shaft fork pipe end fixture are arranged along the axial direction of the spline shaft fork; the shaft yoke head end anchor clamps include that double jaw, second jack catch, a pair of ear hole dabber and ejector pin, second jack catch fixed mounting is inboard at double jaw, be equipped with the extension along the axial of spline shaft yoke on double jaw, it is a pair of the axial symmetry of the perpendicular spline shaft yoke of ear hole dabber sets up on the extension, the tip of ejector pin and the tip looks butt of shaft yoke head. The device has the advantages of accurate positioning, high processing efficiency, wide applicability and equipment cost saving, and improves the quality of friction welding processing.
Description
Technical Field
The invention relates to the technical field of mechanical manufacturing, in particular to the technical field of automobile part manufacturing, and specifically relates to a universal clamp for friction welding of a spline shaft fork.
Background
And (3) processing the spline shaft fork with the hollow structure by friction welding, namely welding the shaft fork head and the shaft fork pipe together by friction welding to form the integral spline shaft fork. Before welding, the shaft fork head and the shaft fork pipe are coaxially arranged and are effectively fixed respectively. Currently, a shaft fork head is fixed by penetrating a long mandrel through a prefabricated lug hole of the shaft fork head and then driving a group of clamping jaws to clamp and align the shaft fork head through a left oil cylinder and a right oil cylinder; the shaft fork tube is positioned by the positioning block and is tensioned by the elastic chuck and the clamping jaws at the end of the shaft fork tube. In the processing process, each shaft fork head needs to be threaded through a long mandrel and then put into a clamp for processing, and the processing efficiency is low; and this processing mode requires highlyer to dabber length, and the length setting of dabber needs to cooperate the jack catch to press from both sides tight axle jaw simultaneously, need to change different dabbers to different axle jaws, leads to that equipment suitability is low, with high costs.
Disclosure of Invention
The invention provides a universal clamp for friction welding of a spline shaft fork, aiming at the technical problems in the prior art, and at least solving the problem of low processing efficiency when the spline shaft fork is subjected to friction welding in the prior art.
The technical scheme for solving the technical problems is as follows:
a friction welding universal fixture for a spline shaft fork comprises a shaft fork head end fixture and a shaft fork pipe end fixture which are arranged along the axial direction of the spline shaft fork, wherein the shaft fork pipe end fixture comprises a conical sleeve, an elastic chuck, a positioning block and a first clamping jaw;
the shaft yoke head end anchor clamps include that double jaw, second jack catch, a pair of ear hole dabber and ejector pin, second jack catch fixed mounting is inboard at double jaw, be equipped with the extension along the axial of spline shaft yoke on double jaw, it is a pair of the axial symmetry of the perpendicular spline shaft yoke of ear hole dabber sets up on the extension, the tip of ejector pin and the tip looks butt of shaft yoke head.
Preferably, the conical sleeve, the elastic chuck and the positioning block are arranged along the axial direction of the spline shaft yoke, the conical sleeve is fixedly installed on the base, a conical through hole is formed in the conical sleeve, the shape of the elastic chuck is matched with that of the conical through hole, and the elastic end of the elastic chuck is gradually expanded towards one end of the conical through hole; the radial direction of the elastic chuck is provided with an elastic groove which extends to the elastic end of the elastic chuck; the first clamping jaw is arranged on the inner wall of the elastic end, and the positioning block is detachably arranged at one end, deviating from the elastic end, of the elastic chuck.
Preferably, a cylindrical through hole coaxial with the conical through hole is further formed in the conical sleeve, the cylindrical through hole is communicated with the tapered end of the conical through hole, and the elastic chuck is in sliding fit with the cylindrical through hole and the conical through hole.
Preferably, a plurality of elastic grooves arranged in parallel are arranged in the radial direction of the elastic chuck, and each elastic groove faces to an opening of the elastic end of the elastic chuck; and when the elastic end contracts along the radial direction, all the first clamping claws are matched and furled mutually.
Preferably, the end part, close to the positioning block, of the elastic chuck is provided with a telescopic mechanism, and the movable end of the telescopic mechanism is coaxially arranged with the elastic chuck and fixedly connected with the elastic chuck.
Preferably, two jaws of the double jaws are arranged oppositely, arc-shaped mounting grooves are respectively formed in the inner sides of the two jaws, and one second jaw is fixedly mounted in each arc-shaped mounting groove; the inner sides of the two second clamping jaws are matched with each other to form an arc shape and are used for clamping the shaft jaw.
Preferably, the one end of earhole dabber towards the center pin of spline shaft yoke is established to the toper, and its other end passes through the installation piece fixed mounting on the extension of two jaws, earhole dabber and the linkage of two jaws, earhole dabber penetrate in the earhole of shaft yoke head, and with earhole clearance fit.
Preferably, the one end fixed mounting of ejector pin is on the base, the coaxial ejector pin head that is equipped with of the other end of ejector pin, the ejector pin head cover is established the tip of ejector pin, the shape and the shaft yoke head end looks adaptation of ejector pin head for shaft yoke head transmission upset power when friction welding.
Preferably, the driving mechanism is arranged on the outer side of the double jaws and is in transmission connection with the double jaws and used for driving the double jaws to move oppositely or back to back.
The invention has the beneficial effects that: the clamp device can realize the radial positioning of the first clamping jaw on the fork tube by driving the elastic clamping head to slide in the conical sleeve, and the positioning block axially positions the fork tube; the shaft fork head is circumferentially positioned through the ear hole mandrel, axially positioned through the ejector rod and radially positioned through the double-jaw driving second clamping jaw. The device reduces the intensity of labour in the operation process, and machining efficiency is high, has shortened the time that whole production manufacturing spent, and the location is accurate, improve the quality of friction welding processing, applicable in the welding of the spline shaft yoke of multiple different specification and dimension, extensive applicability, saved equipment cost.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention in cooperation with a yoke to be welded;
FIG. 2 is a schematic structural view of a spline shaft yoke after welding is completed;
FIG. 3 is a schematic view of the structure of the end clamp of the shaft yoke tube of the present invention matching with the shaft yoke tube;
FIG. 4 is a cross-sectional view of a tapered sleeve according to the present invention;
FIG. 5 is a cross-sectional view of the collet of the present invention;
FIG. 6 is a side view of the collet of the present invention;
FIG. 7 is a cross-sectional view of a first jaw of the present invention;
FIG. 8 is a side view of the first jaw of the present invention;
FIG. 9 is a schematic view of the structure of the shaft yoke head end clamp of the present invention cooperating with a shaft yoke head;
FIG. 10 is a schematic view of the clamp structure for the head end of the shaft yoke according to the present invention;
FIG. 11 is a side view of a dual jaw of the present invention;
fig. 12 is a side view of a second jaw of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. shaft fork pipe end anchor clamps, 101, taper sleeve, 1011, toper through-hole, 1012, cylindricality through-hole, 102, collet, 1021, elasticity groove, 103, locating piece, 104, first jack catch, 2, shaft fork head end anchor clamps, 201, two jaws, 2011, arc mounting groove, 202, second jack catch, 203, ear hole dabber, 204, ejector pin, 205, ejector pin head, 3, shaft fork pipe, 4, shaft fork head, 401, ear hole.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
The universal clamp for friction welding of the spline shaft fork shown in fig. 1 comprises a shaft fork head end clamp 2 and a shaft fork pipe end clamp 1 which are arranged along the axial direction of the spline shaft fork and are used for coaxially fixing and aligning a shaft fork pipe 3 and a shaft fork head 4 so as to realize the friction welding of the next process. The spline shaft yoke structure after friction welding is completed is shown in fig. 2. The structure of the shaft fork pipe end clamp 1 is shown in fig. 3, the shaft fork pipe end clamp 1 includes a tapered sleeve 101, an elastic chuck 102, a positioning block 103 and a first claw 104, the elastic chuck 102 is slidably fitted in the tapered sleeve 101, the elastic chuck 102 is hollow, the first claw 104 is fixedly arranged at the elastic end of the elastic chuck 102, and the positioning block 103 is arranged at the other end of the elastic chuck 102. The first jaw 104 is used for preventing the shaft fork 3 from radially shifting and circumferentially rotating, and the positioning block 103 is used for preventing the shaft fork 3 from axially displacing.
The structure of the shaft fork head-end clamp 2 is shown in fig. 9 and 10, the shaft fork head-end clamp 2 comprises a double-jaw 201, a second jaw 202, a pair of ear hole mandrels 203 and a push rod 204, and the second jaw 202 is fixedly installed inside the double-jaw 201 and used for clamping the periphery of a shaft fork head 4 under the driving of the double-jaw 201. An extension part is arranged on the double jaw 201 along the axial direction of the spline shaft fork, and a pair of lug hole mandrels 203 is arranged on the extension part in a manner of being perpendicular to the axial direction of the spline shaft fork and used for preventing the shaft fork head 4 from rotating. The end part of the top rod 204 is abutted against the end part of the shaft fork head 4 and is used for tightly jacking the end part of the shaft fork head 4.
When the clamping device provided by the embodiment is used, the shaft fork tube 3 is placed in the middle cavity of the elastic chuck 102 of the shaft fork tube end clamping device 1, the end to be processed of the shaft fork tube 3 is exposed out of the elastic chuck 102, and the positioning block 103 and the inner wall of the elastic chuck 102 are used for positioning the shaft fork tube 3. When collet 102 slides within tapered sleeve 101, tapered sleeve 101 causes collet 102 to expand and contract. When the elastic chuck 102 contracts, the first claw 104 clamps the shaft fork tube 3 to fix the shaft fork tube 3; when the collet 102 is released, the first pawl 104 releases the shaft yoke 3. With placing of shaft fork head 4 between the two jaws 201 of shaft fork head end anchor clamps 2, the end of treating of shaft fork head 4 exposes outside the anchor clamps, makes the periphery of shaft fork head 4 cooperate with second jaw 202, two prefabricated earholes 401 of shaft fork head 4 aim at with earhole dabber 203, makes ejector pin 204 and the tip of shaft fork head 4 support tightly simultaneously, drives two jaw 201 opposite direction movements, presss from both sides tightly shaft fork head 4 until second jaw 202, has realized the fixed of shaft fork head 4 promptly. When friction welding is carried out, the relative distance between the shaft fork pipe end clamp 1 and the shaft fork head end clamp 2 is adjusted, and then the positions of the shaft fork pipe 3 and the shaft fork head 4 can be adjusted.
In this embodiment, as shown in fig. 3, the tapered sleeve 101, the collet 102, and the positioning block 103 are disposed along the axial direction of the spline shaft yoke, and the tapered sleeve 101 is fixedly mounted on the base, and the base is driven by the apparatus to move, so as to realize the overall displacement of the shaft yoke pipe end clamp 1. As shown in fig. 4, a tapered through hole 1011 is formed in the tapered sleeve 101, and as shown in the structural diagram of the collet 102 in fig. 5, the outer shape of the collet 102 is adapted to the tapered through hole 1011, and is configured as a tapered body adapted to the tapered through hole 1011, the elastic end of the collet 102 is directed to the end of the tapered through hole 1011, and when the collet 102 is moved in the axial direction of the tapered through hole 1011, the collet 102 slides in the tapered through hole 1011. As shown in fig. 5 and 6, the collet 102 is provided with an elastic groove 1021 in a radial direction, the elastic groove 1021 extends to an elastic end of the collet 102, the elastic groove 1021 is expanded when the collet 102 moves towards the outside of the tapered through hole 1011 of the tapered sleeve 101, and the elastic groove 1021 is contracted when the collet 102 moves towards the inside of the tapered through hole 1011 of the tapered sleeve 101. The first claw 104 is arranged on the inner wall of the elastic end, and when the elastic groove 1021 is expanded or contracted, the first claw 104 is linked with the elastic end to release or clamp the shaft fork tube 3. The positioning block 103 is detachably disposed at an end of the collet 102 away from the elastic end, and abuts against the end of the shaft fork 3 to axially position the shaft fork. According to the shaft fork tube 3 with different shaft lengths, the positioning blocks 103 with different dimensions can be replaced, so that the device is suitable for spline shaft forks with various specifications.
In this embodiment, as shown in fig. 4 and 5, a cylindrical through hole 1012 is further disposed in the conical sleeve 101 and is coaxial with the conical through hole 1011, and the cylindrical through hole 1012 is communicated with a tapered end of the conical through hole 1011; the periphery of the elastic chuck 102 is provided with a cylindrical body with a conical step, the conical surface of the conical step is matched with the conical through hole 1011 in the conical sleeve 101, the cylindrical body is matched with the cylindrical through hole 1012 in the conical sleeve 101, and the elastic chuck 102 is in sliding fit with the conical sleeve 101 in the cylindrical through hole 1012 and the conical through hole 1011.
The cylindrical through hole 1012 radially limits the collet 102, so that the collet can only move along the axial direction of the conical through hole 1011, and the radial deviation of the shaft fork tube 3 is prevented in the process of clamping the shaft fork tube 3, thereby being beneficial to improving the alignment accuracy of the shaft fork tube 3 and the shaft fork head 4 and improving the quality of friction welding processing.
As shown in fig. 5 and 6, the structure of the collet 102 is that four elastic grooves 1021 are radially arranged in parallel on the collet 102, the four elastic grooves 1021 are uniformly distributed in the circumferential direction of the collet 102, each elastic groove 1021 faces an elastic end opening of the collet 102, and an end of the collet 102 is cut into four symmetrical parts. Since the elastic grooves 1021 provide room for the four components of the end of the collet 102 to deform, the end of the collet 102 can deform radially or circumferentially, thereby providing elasticity to the elastic end of the collet 102. As shown in fig. 6, on the inner wall of the elastic end, there is a first claw 104 between adjacent elastic grooves 1021, and in this embodiment, there are four first claws 104 in cooperation with the number of the elastic grooves 1021. As shown in the cross-sectional view of the first jaw 104 in fig. 7 and the side view of the first jaw 104 in fig. 8, the four first jaws 104 are mutually matched to form a four-piece jaw, and the clamping surface formed by the four-piece jaw is matched with the shape of the shaft fork tube 3 and is circular. When the elastic end is contracted in the radial direction, all the first claws 104 are engaged with each other to be drawn in to clamp the shaft yoke 3, and when the elastic end is released in the radial direction, all the first claws 104 are engaged with each other to release the shaft yoke 3.
In this embodiment, a telescopic mechanism (not shown in the figure) is disposed at an end of the elastic chuck 102 close to the positioning block 103, and a movable end of the telescopic mechanism is coaxially disposed with the elastic chuck 102 and fixedly connected thereto through a pull rod. The telescopic mechanism can be an oil cylinder, an air cylinder, an electric cylinder or other controllable telescopic mechanisms, and the telescopic mechanism controls the elastic chuck 102 to perform axial displacement so that the elastic chuck can slide in cooperation with the conical through hole 1011 in the conical sleeve 101, thereby clamping or loosening the fork tube 3.
Fig. 9 is a schematic view of the shaft yoke head end clamp 2 and the shaft yoke head 4 being fitted together, and fig. 10 is a partial sectional view of the shaft yoke head end clamp 2. In this embodiment, the two jaws 201 are disposed opposite to each other, and when the two jaws are closed, the shaft head 4 can be clamped. As shown in fig. 10 and 11, the inner sides of the two jaws are respectively provided with an arc-shaped mounting groove 2011, and one second jaw 202 is fixedly mounted in each arc-shaped mounting groove 2011; as shown in the side view of the second jaws 202 in fig. 12, the inner sides of the two second jaws 202 are matched with each other to form a circular arc shape, which is matched with the outer shape of the shaft fork head 4, so as to achieve better clamping effect.
In this embodiment, as shown in fig. 9 to 11, one end of the ear hole core shaft 203 facing the central axis of the spline shaft yoke is tapered, the other end thereof is fixedly mounted on the extension portion of the double jaw 201 by the fitting of the mounting piece and the bolt, and the ear hole core shaft 203 is linked with the double jaw 201. The ear hole mandrel 203 penetrates into the ear hole 401 of the shaft fork head 4 and is in clearance fit with the ear hole 401, and is used for assisting in positioning the shaft fork head 4 and facilitating the clamping of the second clamping jaw 202 on the shaft fork head 4. When the double jaws 201 move towards or away from the shaft fork head 4, the two lug hole mandrels 203 are inserted into or pushed out of the prefabricated lug holes 401 on the shaft fork head 4, so that the shaft fork head 4 is limited in radial direction and circumferential direction, and the phenomenon that the radial displacement or circumferential rotation of the shaft fork head 4 affects the precision of the next welding process is prevented. Because the earhole mandrel 203 automatically centers the fork head 4, the step of putting a long mandrel into the earhole 401 in advance before the clamp is clamped in the prior art is avoided, the step of aligning the fork head 4 after the clamp is clamped is also avoided, the labor intensity in the operation process is reduced, the time spent in the whole production and manufacturing process is shortened, and the efficiency is improved.
In this embodiment, one end of the top rod 204 is fixedly mounted on a base (the base is not shown in the figure), the base is pushed by the oil cylinder to move, and the base pushes the top rod 204 to move, so as to provide an upsetting force for the shaft fork head in the friction welding process; the other end of the ejector rod 204 is coaxially provided with an ejector rod head 205, the ejector rod head 205 is sleeved at the end part of the ejector rod 204 and can be detached, and the shape of the ejector rod head 205 is matched with that of the end 4 of the shaft fork head and is used for transmitting upsetting force to the shaft fork head 4 during friction welding (particularly during machine upsetting). The head 205 is pushed by the ram 204 to abut against the end of the shaft yoke 4, so that the upsetting force of the oil cylinder is transmitted to the welding surface of the shaft yoke 4 and the shaft yoke tube 3 during friction welding (especially during machine upsetting), and the axial displacement of the shaft yoke 4 is prevented, thereby increasing the firmness and reliability of clamping. The corresponding ejector rod head 205 can be flexibly replaced according to the shaft fork heads 4 with different sizes, the applicability of the clamp device of the embodiment is improved, and the equipment cost is saved.
Preferably, a driving mechanism (not shown in the figures) is arranged on the outer side of the double jaws 201, and the driving mechanism is in transmission connection with the double jaws 201 and is used for driving the double jaws 201 to move relatively or oppositely. The driving mechanism drives the double jaws 201 to synchronously perform centering motion so as to drive the second jaws 202 to clamp the fork head 4, and an oil cylinder, an air cylinder or an electric servo driving mechanism can be used for automatically controlling the motion of the double jaws 201.
The working principle is as follows:
according to the clamp device provided by the invention, the shaft fork tube 3 is placed in the middle cavity of the elastic chuck 102 of the shaft fork tube end clamp 1, the end to be processed of the shaft fork tube 3 is exposed out of the elastic chuck 102, and the shaft fork tube 3 is positioned by using the positioning block 103 and the inner wall of the elastic chuck 102. The tapered sleeve 101 is fixed on the machine tool, and when the telescopic mechanism pushes and pulls the elastic chuck 102 to slide in the tapered sleeve 101 through the pull rod, the radial size of the elastic chuck 102 is changed due to the effect of the tapered through hole 1011, and the elastic chuck 102 is contracted and expanded. When the elastic chuck 102 contracts, the four first claws 104 are linked to form four-petal claws to clamp the shaft fork tube 3, so that the shaft fork tube 3 is fixed; when the collet 102 is released, the first pawl 104 releases the shaft yoke 3. The shaft fork head 4 is placed between the double jaws 201 of the shaft fork head end clamp 2, the end to be processed of the shaft fork head 4 is exposed out of the clamp, the periphery of the shaft fork head 4 is matched with the second jaws 202, two prefabricated ear holes 401 of the shaft fork head 4 are aligned with the ear hole mandrel 203, the double jaws 201 are driven to move oppositely until the second jaws 202 clamp the shaft fork head 4 tightly, then the ejector rod 204 is abutted against the end part of the shaft fork head 4, and the shaft fork head 4 is fixed. When friction welding is carried out, the relative distance between the shaft fork pipe end clamp 1 and the shaft fork head end clamp 2 is adjusted, and then the positions of the shaft fork pipe 3 and the shaft fork head 4 can be adjusted. According to the invention, the elastic chuck 102 is driven to slide in the conical sleeve 101, so that the first claw 104 can radially position the fork tube 3, and the positioning block 103 can axially position the fork tube 3; the shaft yoke head 4 is circumferentially positioned through the ear hole mandrel 203, the shaft yoke head 4 is axially positioned through the mandril 204, and the shaft yoke head 4 is radially positioned through the double jaws 201 to drive the second clamping jaws 202. The device reduces the intensity of labour in the operation process, and machining efficiency is high, has shortened the time that whole production manufacturing spent, and the location is accurate, improve the quality of friction welding processing, applicable in the welding of the spline shaft yoke of multiple different specification and dimension, extensive applicability, saved equipment cost.
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 invention, 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 (9)
1. The friction welding universal fixture for the spline shaft fork comprises a shaft fork head end fixture (2) and a shaft fork pipe end fixture (1) which are coaxially arranged, and is characterized in that the shaft fork pipe end fixture (1) comprises a conical sleeve (101), an elastic chuck (102), a positioning block (103) and a first clamping jaw (104), wherein the elastic chuck (102) is in sliding fit in the conical sleeve (101), the elastic chuck (102) is arranged in a hollow mode, the first clamping jaw (104) is fixedly arranged at the elastic end of the elastic chuck (102), and the positioning block (103) is arranged at the other end of the elastic chuck (102);
the shaft fork head end clamp (2) comprises a double-jaw (201), a second jaw (202), a pair of ear hole mandrels (203) and a push rod (204), wherein the second jaw (202) is fixedly arranged on the inner side of the double-jaw (201), the ear hole mandrels (203) are symmetrically arranged on an extending part of the double-jaw (201) in an axial direction and perpendicular to a spline shaft fork, and the end part of the push rod (204) is abutted to the end part of a shaft fork head (4).
2. The friction welding universal fixture for the spline shaft yoke is characterized in that the conical sleeve (101), the elastic chuck (102) and the positioning block (103) are arranged along the axial direction of the spline shaft yoke, the conical sleeve (101) is fixedly installed on a base, a conical through hole (1011) is formed in the conical sleeve (101), the shape of the elastic chuck (102) is matched with the conical through hole (1011), and the elastic end of the elastic chuck (102) is gradually expanded towards one end of the conical through hole (1011); an elastic groove (1021) is formed in the radial direction of the elastic chuck (102), and the elastic groove (1021) extends to the elastic end of the elastic chuck (102); the first clamping jaw (104) is arranged on the inner wall of the elastic end, and the positioning block (103) is detachably arranged at one end, deviating from the elastic end, of the elastic chuck (102).
3. The friction welding universal fixture for spline shaft forks according to claim 2, characterized in that a cylindrical through hole (1012) which is coaxially arranged with the conical through hole (1011) is further arranged in the conical sleeve (101), the cylindrical through hole (1012) is communicated with the tapered end of the conical through hole (1011), and the elastic chuck (102) is in sliding fit in the cylindrical through hole (1012) and the conical through hole (1011).
4. A universal friction welding fixture for spline shaft forks as claimed in claim 2, wherein a plurality of elastic grooves (1021) are arranged in parallel in the radial direction of the collet (102), and each elastic groove (1021) is opened towards the elastic end of the collet (102); and a first clamping claw (104) is arranged between every two adjacent elastic grooves (1021) on the inner wall of the elastic end, and when the elastic end contracts along the radial direction, all the first clamping claws (104) are matched and folded.
5. The friction welding universal fixture for spline shaft forks according to claim 2, characterized in that a telescopic mechanism is arranged at the end part of the elastic chuck (102) close to the positioning block (103), and the movable end of the telescopic mechanism is coaxially arranged and fixedly connected with the elastic chuck (102).
6. The friction welding universal clamp for the spline shaft yoke is characterized in that two jaws of the double jaws (201) are arranged oppositely, arc-shaped mounting grooves (2011) are respectively formed in the inner sides of the two jaws, and one second jaw (202) is fixedly mounted in each arc-shaped mounting groove (2011); the inner sides of the two second clamping jaws (202) are matched with each other to form an arc shape and are used for clamping the shaft fork head (4).
7. The friction welding universal fixture for spline shaft yokes according to claim 1 or 6, characterized in that one end of the ear hole mandrel (203) facing the central shaft of the spline shaft yoke is provided with a cone shape, the other end of the ear hole mandrel is fixedly installed on the extension part of the double jaws (201) through a mounting sheet, the ear hole mandrel (203) is linked with the double jaws (201), and the ear hole mandrel (203) penetrates into an ear hole (401) of a shaft yoke head (4) and is in clearance fit with the ear hole (401).
8. The friction welding universal fixture for the spline shaft fork as recited in claim 1, wherein one end of the ejector rod (204) is fixedly installed on a base, an ejector rod head (205) is coaxially arranged at the other end of the ejector rod (204), the ejector rod head (205) is sleeved at the end of the ejector rod (204), and the shape of the ejector rod head (205) is matched with that of the end of the shaft fork head (4) and is used for transferring upsetting force to the shaft fork head (4) during friction welding.
9. The friction welding universal clamp for the spline shaft forks is characterized in that a driving mechanism is arranged on the outer side of the double jaws (201), and the driving mechanism is in transmission connection with the double jaws (201) and is used for driving the double jaws (201) to move oppositely or oppositely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110742741.7A CN113492258A (en) | 2021-06-30 | 2021-06-30 | Spline shaft fork friction welding universal fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110742741.7A CN113492258A (en) | 2021-06-30 | 2021-06-30 | Spline shaft fork friction welding universal fixture |
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| CN113492258A true CN113492258A (en) | 2021-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110742741.7A Pending CN113492258A (en) | 2021-06-30 | 2021-06-30 | Spline shaft fork friction welding universal fixture |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114029606A (en) * | 2021-11-26 | 2022-02-11 | 国焊(上海)智能科技有限公司 | Upset forging type friction welding tool and welding method |
| CN114273772A (en) * | 2022-02-18 | 2022-04-05 | 黄山学院 | Large-thickness retractable friction stir spot welding spindle device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101108445A (en) * | 2007-08-28 | 2008-01-23 | 中国兵器工业第五九研究所 | Fixture device used for inertia radial direction friction welding |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114029606A (en) * | 2021-11-26 | 2022-02-11 | 国焊(上海)智能科技有限公司 | Upset forging type friction welding tool and welding method |
| CN114273772A (en) * | 2022-02-18 | 2022-04-05 | 黄山学院 | Large-thickness retractable friction stir spot welding spindle device |
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Application publication date: 20211012 |