CN117399982A - Assembling and screwing tool and assembling and screwing method for automobile steering gear assembly - Google Patents
Assembling and screwing tool and assembling and screwing method for automobile steering gear assembly Download PDFInfo
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- CN117399982A CN117399982A CN202311606369.2A CN202311606369A CN117399982A CN 117399982 A CN117399982 A CN 117399982A CN 202311606369 A CN202311606369 A CN 202311606369A CN 117399982 A CN117399982 A CN 117399982A
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- positioning mechanism
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 117
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000006978 adaptation Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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Abstract
The invention discloses an assembly tightening tool and an assembly tightening method of an automobile steering gear assembly, which relate to the field of tightening devices for automobile part assembly, and are characterized in that: including the frame, set gradually the left pull rod positioning mechanism that is used for the location to left pull rod, be used for the lead screw nut positioning mechanism to lead screw nut part location and be used for the right pull rod positioning mechanism to right pull rod location in the frame, screw up frock still include torque gun, fixed connection socket wrench on the output of torque gun and be used for driving socket wrench towards or keep away from the drive assembly of right pull rod positioning mechanism motion, be provided with the locking slot with the lock nut adaptation on the socket wrench respectively and with the interior hexagonal groove adaptation's of right pull rod locking head. The invention has the advantages of simple and convenient working procedure, reduced investment of manual labor, effective improvement of working efficiency, simple and compact structure and easy workpiece taking and placing.
Description
Technical Field
The invention relates to the field of tightening devices for automobile part assembly, in particular to an assembly tightening tool and an assembly tightening method for an automobile steering gear assembly.
Background
The tightening is the most common assembly process in the automobile parts assembly, different automobile parts can design different tightening demands, as shown in fig. 6, an automobile steering gear assembly 13 mainly comprises a screw-nut component 132, a left pull rod 131, a right pull rod 133 and a lock nut 134, wherein the screw-nut component 132 comprises a screw-nut component 1321 and a nut component 1322 rotationally connected to the screw-nut component 1321, one end of the nut component 1322 is rotationally connected with a bearing 1323, the other end of the nut component 1322 is provided with a limiting clamping groove 1324, in the assembly process, the lock nut 134 which is manually pre-screwed on the nut component 1322 is required to be finally locked on the nut component 1322, one end of the left pull rod 131 and one end of the right pull rod 133 are respectively in threaded connection with the left end and the right end of the screw-nut component 1321, wherein the other end of the left pull rod 131 is provided with a pin groove, the other end of the right pull rod 133 is provided with an inner hexagonal groove, the existing tightening tool for the automobile steering gear assembly 13 needs to be replaced by a plurality of stations, the assembly is more complicated, the tightening is required, and labor is required to be invested, and work is not high.
There is therefore a need to propose a new solution to this problem.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide the assembly tightening tool and the assembly tightening method for the automobile steering gear assembly, which have the advantages of simple and quick working procedures, reduced investment of manual labor, effective improvement of working efficiency, simple and compact structure and easiness in taking and placing workpieces.
The technical aim of the invention is realized by the following technical scheme: the assembly tightening tool comprises a frame, a left pull rod positioning mechanism for positioning a left pull rod, a screw rod nut positioning mechanism for positioning a screw rod nut part and a right pull rod positioning mechanism for positioning a right pull rod are sequentially arranged on the frame, the tightening tool further comprises a torque gun, a socket wrench fixedly connected to the output end of the torque gun and a driving assembly for driving the socket wrench to move towards or away from the right pull rod positioning mechanism, locking grooves matched with locking nuts and locking heads matched with inner hexagonal grooves of the right pull rod are respectively arranged on the socket wrench, the right pull rod positioning mechanism can longitudinally ascend and descend, and after the right pull rod positioning mechanism ascends in place, the positioning axis of the left pull rod positioning mechanism, the positioning axis of the screw rod nut positioning mechanism, the positioning axis of the right pull rod positioning mechanism and the axis of the socket wrench are on the same long axis.
In one embodiment, the left pull rod positioning mechanism comprises a first sliding rail fixed on the frame, a first sliding plate slidingly connected on the first sliding rail, and a first installation seat fixedly connected on the first sliding plate, wherein a first slot for the left pull rod to be inserted is arranged on the first installation seat, a bolt capable of being inserted into a pin slot of the left pull rod is further arranged on the first installation seat, and a first locking knob for locking the first sliding plate on the first sliding rail is arranged on the first sliding plate.
In one embodiment, the screw nut positioning mechanism comprises a second sliding rail fixed on the frame, a second sliding plate slidingly connected on the second sliding rail and a clamping jaw cylinder fixed on the second sliding plate, wherein the clamping jaw cylinder comprises two clamping blocks capable of clamping bearings on the nut component, a second mounting seat is fixed between the clamping jaw cylinder and the left pull rod positioning mechanism on the frame, a second slot for inserting the nut component is arranged on the second mounting seat, a limit buckle for clamping in the limit clamping slot is arranged on the inner side wall of the second slot, and a second locking knob for locking the second sliding plate on the second sliding rail is arranged on the second sliding plate.
In one embodiment, the right pull rod positioning mechanism comprises a jacking cylinder fixed on the frame and a profiling carrier fixed on the output end of the jacking cylinder, and the profiling carrier is provided with a profiling groove matched with the right pull rod.
In one embodiment, the driving assembly is a linear motion module, the linear motion module comprises a base fixed on the frame, a third sliding rail fixed on the base, a driving plate slidingly connected on the third sliding rail and a servo driving structure for driving the driving plate to slide, the third sliding rail is slidingly connected with a connecting plate, the connecting plate is connected with the driving plate through a flexible connecting piece, a first connecting sleeve and a second connecting sleeve are respectively arranged on the connecting plate, the torque gun is fixedly connected on the first connecting sleeve, and the socket wrench is rotationally connected on the second connecting sleeve.
In one embodiment, the flexible connecting piece comprises a guide sleeve fixed on the driving plate, a guide shaft fixed on the connecting plate and a tension spring fixedly connected between the driving plate and the connecting plate, and one end of the guide shaft away from the connecting plate is in sliding connection with the guide sleeve.
In one embodiment, a first position sensor is arranged on one side of the screw nut positioning mechanism on the base, a second position sensor is arranged on one side of the right pull rod positioning mechanism on the base, an initial position sensor is further arranged on the base, and a shifting sheet capable of triggering the initial position sensor, the second position sensor and the first position sensor respectively is arranged on the driving plate so as to cut off power of the servo driving structure.
In one embodiment, the tightening tool further comprises a traceability system, and the torque gun is electrically connected with the traceability system.
The assembly screwing method of the automobile steering gear assembly comprises any one of the assembly screwing tools of the automobile steering gear assembly, and further comprises the following steps:
s1, firstly, mounting a left pull rod on a left pull rod positioning mechanism, then mounting a screw-nut component on the screw-nut positioning mechanism, and finally mounting a right pull rod on a right pull rod positioning mechanism;
s2, when the device works, the right pull rod positioning mechanism descends below the extension axis, the driving assembly drives the socket wrench to move towards the screw rod nut positioning mechanism, the locking groove of the socket wrench is sleeved on the locking nut, and the torque gun drives the socket wrench to rotate so as to lock the locking nut on the nut component;
s3, after the step S2 is completed, the driving assembly drives the socket wrench to retract to one side of the right pull rod positioning mechanism;
s4, the right pull rod positioning mechanism is lifted to the extension axis, and the left pull rod positioning mechanism moves rightwards, so that the screw nut component is partially separated from the screw nut positioning mechanism, the circumferential limit of the screw nut positioning mechanism on the screw nut component is relieved, and the screw nut component is propped between Zuo Lagan and the right pull rod;
s5, a locking head of the socket wrench stretches into an inner hexagonal groove of the right pull rod to drive the right pull rod to rotate, and after the right pull rod is screwed with the screw rod component, the screw rod component is driven to be screwed with the left pull rod.
In summary, the invention has the following beneficial effects: according to the invention, through the arrangement of the left pull rod positioning mechanism, the screw rod nut positioning mechanism, the right pull rod positioning mechanism, the torque gun, the socket spanner and the driving assembly, before use, the left pull rod is firstly arranged on the left pull rod positioning mechanism, then the screw rod nut component is arranged on the screw rod nut positioning mechanism, and finally the right pull rod is arranged on the right pull rod positioning mechanism; when the device works, the right pull rod positioning mechanism descends below the extension axis, the driving assembly drives the socket wrench to move towards the screw-nut positioning mechanism, the locking groove of the socket wrench is sleeved on the locking nut, and the torque gun drives the socket wrench to rotate so as to lock the locking nut on the nut component; the driving assembly drives the socket wrench to retract to one side of the right pull rod positioning mechanism; the right pull rod positioning mechanism is lifted to the extension axis, and the left pull rod positioning mechanism moves rightwards, so that the screw nut component is partially separated from the screw nut positioning mechanism, the circumferential limit of the screw nut positioning mechanism on the screw nut component is relieved, and the screw nut component is propped between Zuo Lagan and the right pull rod; the locking head of the socket wrench stretches into the inner hexagonal groove of the right pull rod to drive the right pull rod to rotate, and after the right pull rod is screwed with the screw rod part, the screw rod part is driven to be screwed with the left pull rod. Compared with the traditional mode, the clamping device has the advantages that the clamping device can be used for clamping the left pull rod, the right pull rod and the screw nut part for once to complete the screwing of the lock nut and the screw nut part, and the screwing of the left pull rod, the right pull rod and the screw nut part is completed, so that the working procedure is simple, convenient and quick, the investment of manual labor is reduced, the working efficiency is effectively improved, and the clamping device has the advantages of being simple and compact in structure and easy to take and place workpieces.
Drawings
Fig. 1 is a schematic structural view of an assembly tightening tool of an automotive steering gear assembly according to an embodiment of the present application;
fig. 2 is a schematic structural view of a left tie rod positioning mechanism and a lead screw nut positioning mechanism in an assembly tightening tool of an automotive steering gear assembly according to an embodiment of the present application;
fig. 3 is a schematic structural view of a limit buckle in an assembly tightening tool of an automotive steering gear assembly according to an embodiment of the present application;
FIG. 4 is an enlarged view of portion A of FIG. 1;
FIG. 5 is a schematic structural view of a first position sensor, a second position sensor, and an initial position sensor in an assembly tightening tool of an automotive steering gear assembly according to an embodiment of the present application;
fig. 6 is a schematic structural view of an automotive steering assembly.
In the figure: 1. a frame; 2. a left pull rod positioning mechanism; 21. a first slide rail; 22. a first slide plate; 23. a first mount; 24. a plug pin; 25. a first locking knob; 3. a screw nut positioning mechanism; 31. a second slide rail; 32. a second slide plate; 33. a clamping jaw cylinder; 34. clamping blocks; 35. a second mounting base; 351. limiting buckle; 4. a right pull rod positioning mechanism; 41. jacking the air cylinder; 42. profiling carrier; 5. a drive assembly; 51. a base; 52. a third slide rail; 53. a driving plate; 54. a connecting plate; 6. a torque gun; 7. a socket wrench; 8. a first position sensor; 9. a second position sensor; 10. an initial position sensor; 11. a pulling piece; 12. a flexible connection member; 121. guide sleeve; 122. a guide shaft; 123. a tension spring; 13. an automotive diverter assembly; 131. a left pull rod; 132. a feed screw nut member; 1321. a screw rod component; 1322. a nut member; 1323. a bearing; 1324. a limit clamping groove; 133. a right pull rod; 134. and (5) locking the nut.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, an embodiment of the present application provides an assembly tightening tool and an assembly tightening method for an automobile steering gear assembly, which includes a frame 1, wherein a left pull rod positioning mechanism 2 for positioning a left pull rod, a screw nut positioning mechanism 3 for positioning a screw nut component, and a right pull rod positioning mechanism 4 for positioning a right pull rod are sequentially arranged on the frame 1. The tightening tool further comprises a torque gun 6, a socket wrench 7 fixedly connected to the output end of the torque gun 6, and a driving assembly 5 for driving the socket wrench 7 to move towards or away from the right pull rod positioning mechanism 4. The socket wrench 7 is respectively provided with a locking groove matched with the locking nut and a locking head matched with the inner hexagonal groove of the right pull rod. The right pull rod positioning mechanism 4 can longitudinally lift, and after the right pull rod positioning mechanism 4 is lifted in place, the positioning axial lead of the left pull rod positioning mechanism 2, the positioning axial lead of the screw nut positioning mechanism 3, the positioning axial lead of the right pull rod positioning mechanism 4 and the axial lead of the socket wrench 7 are on the same extension axial lead.
It should be noted that, during the assembly process, the screw rod component and the nut component can be kept in a locked state by their own structures, and there is no relative rotation between the two components.
When the assembly and tightening tool works, the left pull rod is firstly installed on the left pull rod positioning mechanism 2, then the lead screw nut component is installed on the lead screw nut positioning mechanism 3, and finally the right pull rod is installed on the right pull rod positioning mechanism 4; the right pull rod positioning mechanism 4 descends below the extension axis, the driving assembly 5 drives the socket wrench 7 to move towards the screw-nut positioning mechanism 3, a locking groove of the socket wrench is sleeved on the locking nut, and the torque gun 6 drives the socket wrench 7 to rotate so as to lock the locking nut on the nut component; the driving component 5 drives the socket wrench 7 to retract to one side of the right pull rod positioning mechanism 4; the right pull rod positioning mechanism 4 is lifted to the extension axis, and the left pull rod positioning mechanism 2 moves rightwards, so that the screw nut component is partially separated from the screw nut positioning mechanism 3, the circumferential limit of the screw nut positioning mechanism 3 on the screw nut component is relieved, and the screw nut component is propped between Zuo Lagan and the right pull rod; the locking head of the socket wrench 7 stretches into the inner hexagonal groove of the right pull rod to drive the right pull rod to rotate, and after the right pull rod is screwed with the screw rod part, the screw rod part is driven to be screwed with the left pull rod.
Through above-mentioned setting, compare with traditional mode, can accomplish the screw up of lock nut and nut part through carrying out clamping respectively left pull rod, right pull rod and screw-nut part to accomplish the screw up of left pull rod, right pull rod and screw-nut part, the process is simple and convenient swift, has reduced the input of artifical labour, has effectively improved work efficiency, and has simple structure compactness, easily the work piece gets the advantage of putting.
In this embodiment, as shown in fig. 2, the left pull rod positioning mechanism 2 includes a first slide rail 21 fixed on the frame 1, a first slide plate 22 slidably connected to the first slide rail 21, and a first mounting seat 23 fixedly connected to the first slide plate 22, a first slot for inserting the left pull rod is provided on the first mounting seat 23, a latch 24 capable of being inserted into a latch slot of the left pull rod is further provided on the first mounting seat 23, a slot for inserting the latch 24 is provided on the first mounting seat 23, and a first locking knob 25 for locking the first slide plate 22 on the first slide rail 21 is provided on the first slide plate 22.
When the left pull rod positioning mechanism 2 works, the left pull rod is inserted into the first slot, the bolt 24 is inserted into the slot along the slot to realize the fixed connection of the left pull rod and the left pull rod positioning mechanism 2, after the locking operation of the locking nut is completed on the screw rod nut positioning mechanism 3, the first slide plate 22 is pushed to move towards the screw rod nut positioning mechanism 3, so that the screw rod nut component is pushed out of the screw rod nut positioning mechanism 3, the screw rod nut component is abutted between the left pull rod and the right pull rod, and then the first knob is screwed, so that the first slide plate 22 is locked on the first slide rail 21.
In this embodiment, as shown in fig. 2 and fig. 3, the screw nut positioning mechanism 3 includes a second slide rail 31 fixed on the frame 1, a second slide plate 32 slidably connected to the second slide rail 31, and a clamping jaw cylinder 33 fixed on the second slide plate 32, where the clamping jaw cylinder 33 includes two clamping blocks 34 capable of clamping bearings on the nut member, a second mounting seat 35 is fixed between the clamping jaw cylinder 33 and the left pull rod positioning mechanism 2 on the frame 1, a second slot into which the nut member is inserted is provided on the second mounting seat 35, a limit buckle 351 capable of being clamped by the limit clamping slot is provided on an inner side wall of the second slot, and a second locking knob for locking the second slide plate 32 on the second slide rail 31 is provided on the second slide plate 32.
When the screw-nut positioning mechanism 3 works, the nut component provided with the screw-nut component is inserted into the second slot, the limiting clamping groove of the nut component is clamped with the limiting clamping buckle 351 of the second slot, so that circumferential limiting of the nut component is achieved, the second sliding plate 32 is then locked on the second sliding rail 31 through the second locking knob after being moved to a target position, and the two clamping blocks 34 of the clamping jaw cylinder 33 are clamped on the peripheral wall of the bearing on the nut component to achieve axial limiting of the nut component, so that the socket wrench 7 can conveniently lock the locking nut.
In this embodiment, as shown in fig. 1, the right pull rod positioning mechanism 4 includes a jacking cylinder 41 fixed on the frame 1 and a profiling carrier 42 fixed on an output end of the jacking cylinder 41, and a profiling groove adapted to the right pull rod is provided on the profiling carrier 42.
When the right pull rod positioning mechanism 4 works, the right pull rod is placed in the profiling groove, the left pull rod, the screw rod nut component and the right pull rod are arranged on the same axis, the clamping block 34 is used for loosening the bearing, the left pull rod positioning mechanism 2 drives the left pull rod to push out the screw rod nut component, the limiting clamping groove is separated from the limiting buckle 351, the circumferential limiting of the nut component is relieved, the screw rod nut component is abutted against between the left pull rod and the right pull rod, the socket wrench 7 drives the right pull rod to rotate and drives the right pull rod to move towards the direction of the left pull rod, and after the screw rod of the right pull rod and the screw rod component are screwed tightly, the screw rod component is driven to be screwed tightly with the screw rod of the left pull rod.
The left pull rod, the right pull rod and the screw rod part can be screwed up by simultaneously working at the same station in the mode, and the screw rod device has the advantages of high working efficiency and good working consistency.
In another embodiment, the screw-nut positioning mechanism 3 does not loosen the screw-nut component first, so that the screw-nut component does not rotate along the circumferential direction, after the right pull rod is screwed on the screw-nut component, the left pull rod positioning mechanism 2 drives the left pull rod to push out the screw-nut component, so that the limiting clamping groove is separated from the limiting buckle 351, the circumferential limiting of the nut component is relieved, the screw-nut component is abutted between the left pull rod and the right pull rod, the socket wrench 7 drives the right pull rod to rotate and drives the right pull rod to move towards the left pull rod, and the screwing of the left pull rod is realized.
In this embodiment, as shown in fig. 1 and fig. 4, the driving assembly 5 is a linear motion module, and the linear motion module includes a base 51 fixed on the frame 1, a third slide rail 52 fixed on the base 51, a driving plate 53 slidably connected to the third slide rail 52, and a servo driving structure for driving the driving plate 53 to slide, where the servo driving structure adopts the prior art and may specifically include a screw-nut pair structure and a servo motor. The third sliding rail 52 is slidably connected with a connecting plate 54, the connecting plate 54 and the driving plate 53 are connected through a flexible connecting piece 12, a first connecting sleeve and a second connecting sleeve are respectively arranged on the connecting plate 54, the torque gun 6 is fixedly connected to the first connecting sleeve, and the socket wrench 7 is rotatably connected to the second connecting sleeve.
Specifically, the flexible connection unit 12 includes a guide sleeve 121 fixed on the driving plate 53, a guide shaft 122 fixed on the connection plate 54, and a tension spring 123 fixedly connected between the driving plate 53 and the connection plate 54, where one end of the guide shaft 122 away from the connection plate 54 is slidably connected with the guide sleeve 121.
Through the arrangement of the flexible connecting piece 12, the socket wrench 7 can elastically buffer the lock nut or the right pull rod along the axial direction, so that the problem of serious workpiece abrasion caused by hard contact is avoided.
In this embodiment, as shown in fig. 5, a first position sensor 8 is disposed on a side of the base 51 located on the screw nut positioning mechanism 3, a second position sensor 9 is disposed on a side of the right pull rod positioning mechanism 4, an initial position sensor 10 is further disposed on the base 51, and a driving plate 53 is provided with a paddle 11 capable of triggering the initial position sensor 10, the second position sensor 9 and the first position sensor 8, respectively, so as to cut off the power of the servo driving structure. The specific operation modes of the first position sensor 8, the second position sensor and the initial position sensor 10 adopt the prior art, and the operation modes and the connection modes of other devices are not described in detail in this embodiment.
Through the above arrangement, the driving plate 53 can be accurately stopped at the initial position, the first position and the second position, so that the automobile steering gear assembly tightening device has the capability of effectively preventing errors, and the accuracy of the automobile steering gear assembly tightening operation is improved.
In this embodiment, the tightening tool further includes a traceability system, and the torque gun 6 is electrically connected with the traceability system. The traceability system specifically comprises a collection unit for collecting torque data of the torque gun 6 in the screwing process, a control module for providing control signals and a storage management unit for storing the torque data and building a database according to the torque data, wherein the control module is used for controlling the traceability system to be started or closed, and the collection unit and the storage management unit are respectively and electrically connected with the control module. It will be appreciated that other prior art traceback systems may be employed.
Through the arrangement, the process parameters of the whole process during the tightening operation can be traced.
The invention also discloses an assembly tightening method of the automobile steering gear assembly, which comprises any assembly tightening tool of the automobile steering gear assembly, and further comprises the following steps:
s1, firstly, installing a left pull rod on a left pull rod positioning mechanism 2, then installing a screw-nut component on a screw-nut positioning mechanism 3, and finally installing a right pull rod on a right pull rod positioning mechanism 4;
s2, when the device works, the right pull rod positioning mechanism 4 descends below the extension axis, the driving assembly 5 drives the socket wrench 7 to move towards the screw nut positioning mechanism 3, the locking groove of the socket wrench is sleeved on the locking nut, and the torque gun 6 drives the socket wrench 7 to rotate so as to lock the locking nut on the nut component;
s3, after the step S2 is completed, the driving assembly 5 drives the socket wrench 7 to retract to one side of the right pull rod positioning mechanism 4;
s4, the right pull rod positioning mechanism 4 ascends to the extension axis, the left pull rod positioning mechanism 2 moves rightwards, so that the screw nut component is partially separated from the screw nut positioning mechanism 3, the circumferential limit of the screw nut component by the screw nut positioning mechanism 3 is relieved, and the screw nut component is propped between Zuo Lagan and the right pull rod;
s5, a locking head of the socket wrench 7 stretches into an inner hexagonal groove of the right pull rod to drive the right pull rod to rotate, and after the right pull rod is screwed with the screw rod part, the screw rod part is driven to be screwed with the left pull rod
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (9)
1. The utility model provides an assembly tightening frock of car steering gear subassembly, includes frame (1), its characterized in that: the left pull rod positioning mechanism (2) for positioning the left pull rod, the lead screw nut positioning mechanism (3) for positioning the lead screw nut component and the right pull rod positioning mechanism (4) for positioning the right pull rod are sequentially arranged on the frame (1), the tightening tool further comprises a torque gun (6), a socket wrench (7) fixedly connected to the output end of the torque gun (6) and a driving assembly (5) for driving the socket wrench (7) to move towards or away from the right pull rod positioning mechanism (4), a locking groove matched with the locking nut and a locking head matched with an inner hexagonal groove of the right pull rod are respectively arranged on the socket wrench (7), the right pull rod positioning mechanism (4) can longitudinally ascend and descend, and after the right pull rod positioning mechanism (4) ascends in place, the positioning axis of the left pull rod positioning mechanism (2), the positioning axis of the lead screw nut positioning mechanism (3), the positioning axis of the right pull rod positioning mechanism (4) and the axis of the socket wrench (7) are on the same long axis.
2. The assembly tightening tool of an automotive steering gear assembly of claim 1, wherein: the left pull rod positioning mechanism (2) comprises a first sliding rail (21) fixed on the frame (1), a first sliding plate (22) connected to the first sliding rail (21) in a sliding mode, and a first mounting seat (23) fixedly connected to the first sliding plate (22), a first slot for the left pull rod to be inserted is formed in the first mounting seat (23), a plug pin (24) capable of being inserted into a pin slot of the left pull rod is further formed in the first mounting seat (23), and a first locking knob (25) for locking the first sliding plate (22) on the first sliding rail (21) is arranged on the first sliding plate (22).
3. The assembly tightening tool of an automotive steering gear assembly of claim 2, wherein: the screw-nut positioning mechanism (3) comprises a second sliding rail (31) fixed on the frame (1), a second sliding plate (32) connected to the second sliding rail (31) in a sliding manner, and a clamping jaw air cylinder (33) fixed on the second sliding plate (32), wherein the clamping jaw air cylinder (33) comprises two clamping blocks (34) capable of clamping bearings on nut components, a second mounting seat (35) is fixed between the clamping jaw air cylinder (33) and the left pull rod positioning mechanism (2) on the frame (1), a second slot for inserting a nut component is formed in the second mounting seat (35), a limiting buckle (351) capable of being clamped in the limiting clamping slot is arranged on the inner side wall of the second slot, and a second locking knob for locking the second sliding plate (32) on the second sliding rail (31) is arranged on the second sliding plate (32).
4. The assembly tightening tool of an automotive steering gear assembly of claim 1, wherein: the right pull rod positioning mechanism (4) comprises a jacking cylinder (41) fixed on the frame (1) and a profiling carrier (42) fixed on the output end of the jacking cylinder (41), and a profiling groove matched with the right pull rod is formed in the profiling carrier (42).
5. The assembly tightening tool of an automotive steering gear assembly of claim 1, wherein: the driving assembly (5) is a linear motion module, the linear motion module comprises a base (51) fixed on the frame (1), a third sliding rail (52) fixed on the base (51), a driving plate (53) slidingly connected on the third sliding rail (52) and a servo driving structure for driving the driving plate (53), a connecting plate (54) is slidingly connected on the third sliding rail (52), the connecting plate (54) is connected with the driving plate (53) through a flexible connecting piece (12), a first connecting sleeve and a second connecting sleeve are respectively arranged on the connecting plate (54), the torque gun (6) is fixedly connected on the first connecting sleeve, and the socket wrench (7) is rotationally connected on the second connecting sleeve.
6. The assembly tightening tool of an automotive steering gear assembly of claim 5, wherein: the flexible connecting piece (12) comprises a guide sleeve (121) fixed on the driving plate (53), a guide shaft (122) fixed on the connecting plate (54) and a tension spring (123) fixedly connected between the driving plate (53) and the connecting plate (54), and one end, far away from the connecting plate (54), of the guide shaft (122) is in sliding connection with the guide sleeve (121).
7. The assembly tightening tool of an automotive steering gear assembly of claim 5, wherein: the automatic control device is characterized in that a first position sensor (8) is arranged on one side of the base (51) located on the screw nut positioning mechanism (3), a second position sensor (9) is arranged on one side of the right pull rod positioning mechanism (4), an initial position sensor (10) is further arranged on the base (51), and a driving plate (53) is provided with a poking piece (11) which can trigger the initial position sensor (10), the second position sensor (9) and the first position sensor (8) respectively so as to cut off power of a servo driving structure.
8. The assembly tightening tool of an automotive steering gear assembly of claim 1, wherein: the tightening tool further comprises a tracing system, and the torque gun (6) is electrically connected with the tracing system.
9. An assembly tightening method of an automobile steering gear assembly, comprising the assembly tightening tool of any one of claims 1-8, characterized in that: the method also comprises the following steps:
s1, firstly, mounting a left pull rod on a left pull rod positioning mechanism (2), then mounting a screw-nut component on a screw-nut positioning mechanism (3), and finally mounting a right pull rod on a right pull rod positioning mechanism (4);
s2, when the device works, the right pull rod positioning mechanism (4) descends below the extension axis, the driving assembly (5) drives the socket wrench (7) to move towards the screw nut positioning mechanism (3), the locking groove of the socket wrench is sleeved on the locking nut, and the torque gun (6) drives the socket wrench (7) to rotate so as to lock the locking nut on the nut component;
s3, after the step S2 is completed, the driving assembly (5) drives the socket wrench (7) to retract to one side of the right pull rod positioning mechanism (4);
s4, the right pull rod positioning mechanism (4) ascends to the extension axis, the left pull rod positioning mechanism (2) moves rightwards, so that the screw nut component is partially separated from the screw nut positioning mechanism (3), the circumferential limit of the screw nut positioning mechanism (3) on the screw nut component is relieved, and the screw nut component is propped between Zuo Lagan and the right pull rod;
s5, a locking head of the socket wrench (7) stretches into an inner hexagonal groove of the right pull rod to drive the right pull rod to rotate, and after the right pull rod is screwed with the screw rod component, the screw rod component is driven to be screwed with the left pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311606369.2A CN117399982A (en) | 2023-11-29 | 2023-11-29 | Assembling and screwing tool and assembling and screwing method for automobile steering gear assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311606369.2A CN117399982A (en) | 2023-11-29 | 2023-11-29 | Assembling and screwing tool and assembling and screwing method for automobile steering gear assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117399982A true CN117399982A (en) | 2024-01-16 |
Family
ID=89494597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311606369.2A Pending CN117399982A (en) | 2023-11-29 | 2023-11-29 | Assembling and screwing tool and assembling and screwing method for automobile steering gear assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117399982A (en) |
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2023
- 2023-11-29 CN CN202311606369.2A patent/CN117399982A/en active Pending
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