CN117921334A - Device and method for centralizing, pre-pressing and nut screwing of shock absorber - Google Patents
Device and method for centralizing, pre-pressing and nut screwing of shock absorber Download PDFInfo
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- CN117921334A CN117921334A CN202410328272.8A CN202410328272A CN117921334A CN 117921334 A CN117921334 A CN 117921334A CN 202410328272 A CN202410328272 A CN 202410328272A CN 117921334 A CN117921334 A CN 117921334A
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 103
- 230000035939 shock Effects 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000009191 jumping Effects 0.000 claims abstract description 8
- 238000005056 compaction Methods 0.000 claims abstract description 5
- 230000036316 preload Effects 0.000 claims description 9
- 230000002265 prevention Effects 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 238000012937 correction Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012546 transfer Methods 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
- 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
- B23P19/001—Article feeders for assembling machines
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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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- 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
- B23P19/10—Aligning parts to be fitted together
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- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention relates to a device for centralizing, pre-pressing and screwing nuts of a shock absorber, which belongs to the technical field of shock absorber assembly and comprises the following components: the base is provided with a machine body assembly and a conveying mechanism; the tray assembly is used for positioning and clamping the shock absorber body to be assembled; the jacking force-bearing mechanism is arranged on the base; the nut tightening mechanism is arranged on the machine body assembly; the workpiece guide component is arranged at the lower side of the nut tightening mechanism; the spring righting tool is arranged on the machine body assembly and positioned at the lower side of the workpiece righting assembly and is used for righting a spring at the outer side of the shock absorber body; the workpiece clamping and righting mechanism is used for carrying out secondary righting and positioning on the shock absorber body. According to the invention, the automatic guiding pre-pressing of the spring of the shock absorber and the guiding of the connecting plate assembly can be realized, the working efficiency is improved, the processing beat is improved, and the labor is saved; in the process of spring pre-compaction, the spring can be prevented from jumping out by the spring anti-jumping mechanism, and corresponding protection is carried out on staff.
Description
Technical Field
The invention relates to the technical field of shock absorber module assembly, in particular to shock absorber centralizing pre-pressing and nut tightening equipment and method.
Background
In the running process of an automobile, particularly in the suspension system, vibration is generated by the impact of a road surface and the like, in order to overcome the vibration in the running process and improve the comfort performance, a shock absorber is widely used in the suspension system in the automobile. The shock absorber in the existing automobile field comprises a shock absorber body, a shock absorber connecting rod, springs, a connecting plate assembly, nuts and buffer blocks, wherein the buffer blocks are arranged in cavities of the shock absorber body during specific installation, springs are arranged on the outer sides of the shock absorber body, an upper spring pad and a lower spring pad are arranged on the outer sides of the shock absorber body, which are located on the upper side and the lower side of the springs, then the connecting plate assembly is buckled above the upper spring pad, finally the springs are pressed down for a certain distance in a stress application mode, and then a tightening gun is used for tightening the nuts, so that the time and the labor are consumed, and the working efficiency is low; because the nut is screwed down, need to pre-compaction to the spring, and the required dynamics of pre-compaction spring is great, and pre-compaction spring force is around 2T, and the transfer chain can 'T bear this kind of big power, still can take place the spring and jump out the condition, threatens staff's personal safety, and the nut can also appear the spring after assembling moreover and take place the skew condition, influences the installation of whole bumper shock absorber in whole car.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the deflection of the shock absorber spring and the connecting plate assembly in the prior art, and provide the shock absorber centralizing pre-pressing and nut tightening equipment, when the nut is tightened, the spring is automatically centralizing pre-pressing and the connecting plate assembly is automatically centralizing, the working efficiency is improved, the processing beat is improved, and the labor is saved.
In order to solve the above technical problems, the present invention provides a device for centering and pre-pressing a shock absorber and tightening a nut, comprising:
The base is provided with a machine body assembly and a conveying mechanism;
the tray assembly is used for positioning and clamping the shock absorber body to be assembled, and the shock absorber is conveyed by the conveying mechanism after being fixed on the tray assembly and preassembled;
The jacking force-bearing mechanism is arranged on the base and penetrates out of the conveying mechanism to jack the pallet assembly conveyed in place;
The nut tightening mechanism is arranged on the machine body assembly and is used for tightening nuts on the shock absorber body; the nut tightening mechanism comprises a tightening assembly, a lifting driving mechanism II and a spring jumping-out prevention mechanism, wherein the tightening assembly is controlled by the lifting driving mechanism II to perform lifting action, and the spring jumping-out prevention mechanism is arranged on the tightening assembly and used for preventing a spring from jumping out in the nut tightening process; the workpiece guide assembly is arranged at the lower side of the nut tightening mechanism and used for pre-guiding and positioning the connecting plate assembly on the shock absorber body;
The spring righting tool is arranged on the machine body assembly and positioned at the lower side of the workpiece righting assembly and is used for righting a spring at the outer side of the shock absorber body; the spring centralizing tool comprises a horizontal pushing cylinder and a centralizing clamping block, and the telescopic end of the horizontal pushing cylinder is connected with the centralizing clamping block;
The workpiece clamping and righting mechanism is used for carrying out secondary righting and positioning on the shock absorber body; the workpiece clamping and resetting mechanism comprises a lifting plate, a lifting driving mechanism I, a front-back moving mechanism and a first clamping jaw assembly; the lifting plate is arranged on the machine body assembly; the lifting plate is connected with a lifting driving mechanism I arranged on the base and driven by the lifting driving mechanism I to move up and down; the first clamping jaw assembly is arranged on the lifting plate through a sliding connection plate, and the sliding connection plate is controlled by a front-back moving mechanism arranged on the lower side of the lifting plate to move horizontally to control the first clamping jaw assembly to be close to the shock absorber body.
In one embodiment of the invention, a reset clamping spring is arranged on the outer side of the push rod, and a spring limiting piece is arranged on the fixed seat.
In one embodiment of the invention, the jacking force bearing mechanism comprises a bottom plate, a top plate, a moving plate, a bearing support plate, a guide pillar and a jacking cylinder; the bottom plate is connected with the top plate through a guide post, the moving plate is arranged on the bottom plate in a sliding manner, and the moving plate is connected with the telescopic end of a jacking cylinder arranged on the bottom plate; the bearing support plate is arranged on the moving plate, the guide plate is arranged at the bottom of the top plate, rollers are arranged on the bearing support plate, guide grooves are formed in the guide plate, the rollers are embedded into the guide grooves to realize connection of the bearing support plate and the guide plate, an upper bearing block is arranged at the bottom of the top plate, a lower bearing block is arranged on the moving plate, when the rollers move in the guide grooves, the distance between the top plate and the bottom plate changes, and after the distance between the bottom plate and the top plate is adjusted in place, the upper bearing block and the lower bearing block play roles in bearing up and down.
In one embodiment of the invention, tray positioning pins are arranged at four corners of the top plate.
In one embodiment of the invention, the tray assembly comprises a tray and a positioning tool and a clamping device which are arranged on the tray, wherein the positioning tool is provided with a limiting clamping groove matched with the bottom end of the shock absorber body, and the clamping device is arranged on one side of the positioning tool; wherein the clamping device comprises a second clamping jaw assembly and a height adjustment mechanism; the height adjusting mechanism is arranged on the tray, and the second clamping jaw assembly is arranged on the height adjusting mechanism.
In one embodiment of the invention, the tightening assembly comprises a supporting frame, a lifting cylinder and a tightening gun, wherein the supporting frame is arranged on the machine body assembly in a sliding mode, the lifting cylinder is arranged on the supporting frame, and the telescopic end of the lifting cylinder is connected with the tightening gun.
In one embodiment of the invention, the workpiece straightening assembly comprises a straightening plate, a straightening tool and a pneumatic balance piece, wherein the straightening plate is arranged at the bottom of the supporting frame and is connected with the pneumatic balance piece arranged in the supporting frame, a guide through hole is formed in the straightening plate, the straightening tool is arranged at the periphery of the guide through hole, straightening round pins are arranged at the periphery of the straightening tool, and a handle is further arranged at one side of the straightening plate.
In one embodiment of the invention, the second clamping jaw assembly comprises a fixed seat, a push rod, a first push block, a sliding block and a first clamping jaw, wherein the sliding block comprises a first sliding block and a second sliding block, the first sliding block and the second sliding block are oppositely arranged in the fixed seat, and the first sliding block and the second sliding block are both connected with the first clamping jaw; the first push block is arranged in the fixed seat and located between the first slide block and the second slide block, the push rod penetrates through the fixed seat and then is connected with the first push block, a limit stop is further arranged on the first push block, a limit groove for enabling the limit stop to move is formed in the fixed seat, a sliding cover plate is arranged above the limit groove on the fixed seat, and the sliding cover plate is connected with the limit stop.
In one embodiment of the invention, the spring anti-bouncing mechanism comprises a lifting driving mechanism III, a mounting plate and a protection rod, wherein the mounting plate is connected with the driving end of the lifting driving mechanism III, the protection rod is vertically arranged on the mounting plate, and a groove for guiding the protection rod in a vertical sliding manner is formed in the supporting frame.
In one embodiment of the invention, the first clamping jaw assembly comprises a clamping cylinder, a second pushing block, a clamping jaw mounting seat, a clamping jaw II and a reset spring, wherein the clamping jaw II comprises two clamping jaws which are rotatably arranged in the clamping jaw mounting seat through a rotary connecting part; the clamping cylinder is arranged on the sliding connection plate, the second pushing block is connected with the telescopic end of the clamping cylinder, the second pushing block is in contact with the second clamping jaw, when the second pushing block horizontally moves, the second clamping jaw can open and close, the second clamping jaw is further connected with a reset spring, and two ends of the reset spring are connected with the second clamping jaw through connecting columns respectively.
In one embodiment of the present invention, the first lifting driving mechanism comprises a first servo motor, a first lifting screw and a first screw nut; the first servo motor is arranged on the base through a fixing frame, the output end of the first servo motor is connected with the first lifting screw rod, the first screw rod nut is in threaded connection with the first lifting screw rod, and the first screw rod nut is connected with the lifting plate; the second lifting driving mechanism comprises a second servo motor, a second lifting screw rod, a second screw nut and a synchronous pulley assembly, the second servo motor is arranged on the machine body assembly, the output end of the second servo motor is connected with the second lifting screw rod through the synchronous pulley assembly, the second screw nut is arranged on the outer side of the second lifting screw rod, and the second screw nut is connected with the machine body assembly; the top of the lifting screw rod II is in sliding connection with a linear sliding rail arranged on the machine body assembly, and the bottom of the lifting screw rod II is connected with the tightening assembly.
In one embodiment of the invention, the machine body assembly comprises a first support plate and a second support plate, a first support guide rod and a second support guide rod are arranged between the first support plate and the second support plate, and a fall-preventing cylinder is arranged on the second support guide rod.
In a second aspect, in order to solve the above technical problems, the present invention provides a method for centering and pre-pressing a shock absorber and tightening a nut, which specifically includes the following steps:
(1) The damper body is positioned to realize one-time clamping;
(2) Preassembling the shock absorber, and manually preassembling a buffer block, a lower spring pad, a spring, an upper spring pad and a connecting plate assembly on the shock absorber body;
(3) The pilot guide positive connecting plate assembly is manually sleeved on the shock absorber connecting rod, and pilot guide positive is carried out on the connecting plate assembly to prevent the connecting plate assembly from being skewed;
(4) Jacking the shock absorber body from the bottom to bear force, and separating the shock absorber body from the conveying line;
(5) The damper body is clamped secondarily, so that secondary correction of the damper body is realized;
(6) The springs on the outer side of the shock absorber body are straightened;
(7) The spring is protected against jumping out;
(8) Pre-pressing a spring on the outer side of the shock absorber body until the connecting rod threads of the shock absorber are exposed out of the connecting plate assembly;
(9) After the pre-pressing spring is in place, the guide pen cap is manually taken out, and the nut is pre-screwed;
(10) Continuously pressing down the spring and tightening the nut;
(11) And after the nut is screwed, the assembled shock absorber is returned to the conveying line to be conveyed and discharged.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
According to the centering pre-pressing and nut screwing equipment for the shock absorber, parts of the shock absorber can be pre-assembled on the tray assembly in advance, the parts are clamped and positioned, then the tray assembly is conveyed through the conveying mechanism, after the tray assembly is conveyed in place, the jacking bearing mechanism jacks the tray assembly for a certain distance, the nut screwing assembly and the workpiece centering assembly move downwards to lower the pre-pressing spring, the workpiece centering assembly pre-guides the connecting plate assembly on the shock absorber body, the spring centering mechanism centers the spring, the workpiece clamping centering mechanism performs secondary centering clamping on the shock absorber body, then the nut screwing assembly screws the nut again, automatic centering pre-pressing of the spring is realized in the whole process, the working efficiency is improved, the beat is improved, and labor is saved; in addition, in the process of spring pre-pressing, the spring jumping-out prevention mechanism can prevent the spring from jumping out, and accordingly protection is carried out on workers.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.
FIG. 1 is a schematic view of a shock absorber righting preload and nut runner apparatus in accordance with a preferred embodiment of the present invention;
FIG. 2 is a schematic view of a nut tightening mechanism according to the present invention;
fig. 3 is a schematic structural view of a second lifting driving mechanism of the nut tightening mechanism shown in fig. 2;
FIG. 4 is a schematic view of the structure of the tray assembly, the jacking mechanism and the conveying mechanism according to the present invention;
FIG. 5 is a schematic view of a tray assembly according to the present invention;
FIG. 6 is a schematic view of a first jaw assembly of the tray assembly of FIG. 5;
FIG. 7 is a schematic view of a portion of the first jaw assembly of FIG. 6;
FIG. 8 is a schematic diagram of a jack-up mechanism according to the present invention;
FIG. 9 is a schematic view of the jack-up mechanism shown in FIG. 8 at another angle;
FIG. 10 is a schematic view of a workpiece alignment assembly according to the present invention;
FIG. 11 is a schematic view of a workpiece clamping and centering mechanism in accordance with the present invention;
FIG. 12 is a schematic view of the first jaw assembly of the work piece clamping and centering mechanism of FIG. 11;
FIG. 13 is a schematic view of the structure of the engine block assembly according to the present invention;
FIG. 14 is a schematic view of the assembly of the spring centering tool and the machine body of the present invention;
Description of the specification reference numerals: 1. a base; 2. a body assembly; 20. a linear slide rail; 21. a first supporting plate; 22. a second supporting plate; 23. supporting a first guide rod; 24. a second supporting guide rod; 3. a conveying mechanism; 4. a tray assembly; 41. a tray; 42. positioning a tool; 43. a clamping device; 431. A fixing seat; 4312. sliding the cover plate; 432. a push rod; 433. a pushing block I; 434. a slide block; 4341. a first sliding block; 4342. a second slide block; 435. a clamping jaw I; 436. an oil filling block; 437. Resetting the clamping spring; 5. a jacking force-bearing mechanism; 51. a bottom plate; 52. a top plate; 53. a bearing support plate; 531. a roller; 54. a guide plate; 541. a guide groove; 55. a guide post; 56. jacking the air cylinder; 57. a moving plate; 58. an upper bearing block; 59. a lower bearing block; 6. a nut tightening mechanism; 60. a lifting driving mechanism II; 601. a servo motor II; 602. lifting a screw rod II; 603. a screw nut II; 604. a synchronous pulley assembly; 64. a spring anti-bouncing mechanism; 641. a lifting driving mechanism III; 642. a mounting plate; 643. a protection rod; 61. a support frame; 62. a lifting cylinder; 63. tightening the gun; 7. a workpiece alignment assembly; 71. a guide plate; 72. guiding tool; 73. a pneumatic balance member; 74. guiding the round pin; 8. spring righting tool; 81. a horizontal pushing cylinder; 82. centralizing the clamping blocks; 9. workpiece clamping and correcting mechanism; 91. a lifting plate; 92. a lifting driving mechanism I; 93. a forward and backward movement mechanism; 94. a first jaw assembly; 921. a servo motor I; 922. lifting a first lead screw; 923. a screw nut I; 941. a clamping cylinder; 942. a pushing block II; 943. a clamping jaw mounting seat; 944. a clamping jaw II; 945. and a return spring.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Example 1
Referring to fig. 1, a shock absorber centralizing pre-pressing and nut tightening device according to the present invention includes: the device comprises a base 1, wherein a machine body assembly 2 and a conveying mechanism 3 are arranged on the base 1;
The tray assembly 4 is used for positioning and clamping the shock absorber body to be assembled, and the shock absorber is conveyed by the conveying mechanism 3 after being fixed on the tray assembly 4 and preassembled;
the jacking force-bearing mechanism 5 is arranged on the base 1 and penetrates out of the conveying mechanism 3 to jack the pallet assembly 4 conveyed in place; the conveying mechanism 3 is provided with a lifting limiting baffle for limiting the movable range of the tray assembly 4;
The nut tightening mechanism 6 is arranged on the machine body assembly 2 and is used for tightening nuts on the shock absorber body; the nut tightening mechanism 6 comprises a tightening assembly, a second lifting driving mechanism 60 and a spring jumping-out prevention mechanism 64, wherein the tightening assembly is controlled by the second lifting driving mechanism 60 to perform lifting action; the spring anti-bouncing out mechanism 64 is arranged on the tightening assembly and used for preventing the spring from bouncing out in the process of tightening the nut; as shown in fig. 2, the tightening assembly comprises a supporting frame 61, a lifting cylinder 62 and a tightening gun 63, wherein the supporting frame 61 is slidably arranged on the machine body assembly 2, the lifting cylinder 62 is arranged on the supporting frame 61, and the telescopic end of the lifting cylinder 62 is connected with the tightening gun 63; as shown in fig. 3, the second lifting driving mechanism 60 includes a second servo motor 601, a second lifting screw 602, a second screw nut 603, and a synchronous pulley assembly 604, wherein the second servo motor 601 is disposed on the first support plate 21, an output end of the second servo motor is connected with the second lifting screw 602 through the synchronous pulley assembly 604, the second screw nut 603 is disposed on an outer side of the second lifting screw 602, and the second screw nut 603 is connected with the machine body assembly 2; the top end of the lifting screw rod II 602 is in sliding connection with the linear slide rail 20 arranged on the machine body assembly 2, and the bottom end of the lifting screw rod II 602 is connected with the tightening assembly;
The workpiece guide assembly 7 is arranged at the lower side of the nut tightening mechanism 6 and is used for pre-guiding and positioning the connecting plate assembly on the shock absorber body;
the spring righting tool 8 is arranged on the machine body assembly 2 and positioned at the lower side of the workpiece righting assembly 7 and is used for righting a spring at the outer side of the shock absorber body; the spring centralizing tool 8 comprises a horizontal pushing cylinder 81 and a centralizing clamping block 82, wherein the telescopic end of the horizontal pushing cylinder 81 is connected with the centralizing clamping block 82, as shown in fig. 14, when the shock absorber body is preassembled, the telescopic rod of the horizontal pushing cylinder 81 extends out, the centralizing clamping block 82 centralizes the shock absorber from three directions, and the vertical state of the shock absorber is ensured;
The workpiece clamping and righting mechanism 9 is used for carrying out secondary righting and positioning on the shock absorber body; as shown in fig. 11, the workpiece clamping and righting mechanism 9 includes a lifter plate 91, a lifter driving mechanism one 92, a forward-backward moving mechanism 93, and a first clamping jaw assembly 94; the lifting plate 91 is arranged on the machine body assembly 2; the lifting plate 91 is connected with a first lifting driving mechanism 92 arranged on the base 1 and is driven by the first lifting driving mechanism 92 to move up and down; the first clamping jaw assembly 94 is arranged on the lifting plate 91 through a sliding connection plate 95, and the sliding connection plate 95 is controlled by a front-back moving mechanism 93 arranged on the lower side of the lifting plate 91 to move horizontally to control the first clamping jaw assembly 94 to be close to the damper body; the lifting driving mechanism I92 comprises a servo motor I921, a lifting lead screw I922 and a lead screw nut I923; the first servo motor 921 is mounted on the base 1 through a fixing frame, the output end of the first servo motor 921 is connected with the first lifting screw 922, the first screw nut 923 is in threaded connection with the first lifting screw 922, and the first screw nut 923 is connected with the lifting plate 91; the first clamping jaw assembly 94 comprises a clamping cylinder 941, a second pushing block 942, a clamping jaw mounting seat 943, a second clamping jaw 944 and a return spring 945, wherein the second clamping jaw 944 comprises two clamping jaws which are rotatably arranged in the clamping jaw mounting seat 943 through a rotary connecting part; the clamping cylinder 941 is disposed on the sliding connection plate 95, the second pushing block 942 is connected with the telescopic end of the clamping cylinder 941, the second pushing block 942 contacts with the second clamping jaw 944, when the second pushing block 942 moves horizontally, the second clamping jaw 944 can open and close, the two second clamping jaws 944 are further connected with a return spring 945, two ends of the return spring 945 are respectively connected with the second clamping jaw 944 through connecting posts, as shown in fig. 12, after the shock absorber is preassembled, the first clamping jaw assembly 94 is controlled to be close to the shock absorber by utilizing the front-back moving mechanism 93, after the shock absorber is placed in the second clamping jaw 944, the telescopic rod of the clamping cylinder 941 extends, the second pushing block 942 is controlled to extend, the second pushing block 942 closes the second clamping jaw 944, so that the clamping of the shock absorber is righted, the shock absorber is connected with the machine body assembly 2, and when the telescopic rod of the clamping cylinder 941 retracts, the second clamping jaw 941 opens.
As shown in fig. 4 and 5, the tray assembly 4 includes a tray 41, and a positioning tool 42 and a clamping device 43 disposed on the tray 41, wherein a limiting slot adapted to the bottom end of the shock absorber body is disposed on the positioning tool 42, and the clamping device 43 is disposed on one side of the positioning tool 42; wherein the clamping device 43 comprises a second jaw assembly and a height adjustment mechanism; the height adjustment mechanism is provided on the tray 41, and the second jaw assembly is mounted on the height adjustment mechanism. In this embodiment, the height adjusting mechanism adjusts the up-down position of the second clamping jaw assembly in a manual mode, when the damper body is positioned and clamped, the bottom of the damper body is positioned through the limiting clamping groove on the positioning tool 42, and the second clamping jaw assembly is closed to clamp the damper body.
As shown in fig. 6 and 7, the second jaw assembly includes a fixed seat 431, a push rod 432, a first push block 433, a sliding block 434 and a first jaw 435, the sliding block 434 includes a first sliding block 4341 and a second sliding block 4342, the first sliding block 4341 and the second sliding block 4342 are oppositely disposed in the fixed seat 431, and the first sliding block 4341 and the second sliding block 4342 are both connected with the first jaw 435; the first pushing block 433 is disposed in the fixed seat 431 and located between the first sliding block 4341 and the second sliding block 4342, the pushing rod 432 passes through the fixed seat 431 and then is connected with the first pushing block 433, the first pushing block 433 is further provided with an oil injection block 436, the fixed seat 431 is provided with a groove for the oil injection block 436 to move, a sliding cover plate 4312 is disposed above the groove on the fixed seat 431, and the sliding cover plate 4312 is connected with the oil injection block 436 to play a dustproof and protective role. The outside of the push rod 432 is provided with a reset clamping spring 437, when the push rod 432 is pushed by an external pneumatic component, the first pushing block 433 pushes, and the two first clamping jaws 435 are further closed.
As shown in fig. 8 and 9, the jacking mechanism 5 includes a bottom plate 51, a top plate 52, and a moving plate 57; a bearing support plate 53, a guide plate 54, a guide post 55 and a jacking cylinder 56; the bottom plate 51 and the top plate 52 are connected through a guide post 55, the moving plate 57 is slidably arranged on the bottom plate 51, and the moving plate 57 is connected with a telescopic end of a jacking cylinder 56 arranged on the bottom plate 51; the moving plate 57 is slidably arranged on the bottom plate 51, the guide plate 54 is arranged at the bottom of the top plate 52, the bearing support plate 53 is provided with rollers 531, the guide plate 54 is provided with guide grooves 541, and the rollers 531 are embedded into the guide grooves 541 to realize connection between the bearing support plate 53 and the guide plate 54; the bottom of the top plate 52 is provided with an upper bearing block 58, the moving plate 57 is provided with a lower bearing block 59, when the roller 531 moves in the guide groove 541, the distance between the top plate 52 and the bottom plate 51 changes, and after the distance between the bottom plate 51 and the top plate 52 is adjusted in place, the upper bearing block 58 and the lower bearing block 59 play a role in bearing up and down, so that the supporting strength of the whole jacking bearing mechanism 5 is enhanced.
As shown in fig. 10, the workpiece guiding assembly 7 includes a guiding plate 71, a guiding tool 72 and a pneumatic balancing piece 73, the guiding plate 71 is disposed at the bottom of the supporting frame 61 and is connected with the pneumatic balancing piece 73 disposed in the supporting frame 61, the pneumatic balancing piece 73 balances the weight, a guiding through hole is formed in the guiding plate 71, the guiding tool 72 is disposed around the guiding through hole, guiding round pins 74 are disposed around the guiding tool 72, and a handle is further disposed on one side of the guiding plate 71. If the workpiece guiding assembly 7 is lowered along with the nut tightening mechanism 6, the guiding tool 72 cannot smoothly guide the connecting plate assembly of the shock absorber, and the workpiece guiding assembly can also be manually guided by manually pulling down the guiding plate 71, and the guiding round pin 74 wraps the connecting plate assembly in the process of lowering along with the guiding plate 71, so that the guiding of the connecting plate assembly is realized. In this embodiment, the pneumatic balancing member 73 is a balancing cylinder, and a piston rod of the balancing cylinder is connected to the guide plate 71, so that when the guide plate 71 is manually pulled down, the piston rod of the balancing cylinder can still be pulled for a certain distance, and thus labor can be saved when the guide plate 71 is manually pulled down.
As shown in fig. 2, the spring anti-bouncing mechanism 64 includes a third lifting driving mechanism 641, a mounting plate 642 and a protection rod 643, the mounting plate 642 is connected with the driving end of the third lifting driving mechanism 641, the protection rod 643 is vertically disposed on the mounting plate 642, and a groove for guiding the protection rod 643 to slide up and down is disposed on the support 61. In this embodiment, the lifting driving mechanism three 641 is a sliding table cylinder.
As shown in fig. 13, the machine body assembly 2 includes a first support plate 21 and a second support plate 22, a first support guide rod 23 and a second support guide rod 24 are disposed between the first support plate 21 and the second support plate 22, and a fall preventing cylinder is disposed on the second support guide rod 24. The first supporting plate 21 is fixedly connected with the first supporting guide rod 23, the nut tightening mechanism 6 can slide up and down along the first supporting guide rod 23, the workpiece guide assembly 7 slides up and down along the second supporting guide rod 24, and when the equipment stops working, the anti-falling air cylinder can automatically break air to tightly hold the second supporting guide rod 24, so that the equipment and personnel are protected.
Example two
The invention also provides a method for tightening the centralizing pre-pressing nut of the shock absorber, which comprises the following specific steps:
(1) The damper body is positioned to realize one-time clamping;
(2) Preassembling the shock absorber, and manually preassembling a buffer block, a lower spring pad, a spring, an upper spring pad and a connecting plate assembly on the shock absorber body;
(3) The pilot guide positive connecting plate assembly is manually sleeved on the shock absorber connecting rod, and pilot guide positive is carried out on the connecting plate assembly to prevent the connecting plate assembly from being skewed;
(4) Jacking the shock absorber body from the bottom to bear force, and separating the shock absorber body from the conveying line;
(5) The damper body is clamped secondarily, so that secondary correction of the damper body is realized;
(6) The springs on the outer side of the shock absorber body are straightened;
(7) The spring is protected against jumping out;
(8) Pre-pressing a spring on the outer side of the shock absorber body until the connecting rod threads of the shock absorber are exposed out of the connecting plate assembly;
(9) After the pre-pressing spring is in place, the guide pen cap is manually taken out, and the nut is pre-screwed;
(10) Continuously pressing down the spring and tightening the nut;
(11) And after the nut is screwed, the assembled shock absorber is returned to the conveying line to be conveyed and discharged.
Based on the structure in the first embodiment, the working procedure of the shock absorber centralizing pre-pressing and nut tightening device is specifically as follows:
S1, manually placing the damper body on a tray 41, and clamping the damper body by using a clamping device 43 on the tray 41 to realize the preliminary positioning of the damper body;
s2, manually preassembling a buffer block, a lower spring pad, a spring and an upper spring pad connecting plate assembly on the damper body;
s3, manually sleeving the guide pen on the connecting rod of the shock absorber, and guiding the positive connecting plate assembly in advance to prevent the guide pen from being skewed;
S4, after the tray 41 is conveyed in place, the jacking force-bearing mechanism 5 jacks the tray 41, when the telescopic rod of the jacking cylinder 56 stretches out, the supporting plate 53 is pushed to move in the horizontal direction, when the roller 531 of the supporting plate 53 moves in the guide groove 541, the distance between the top plate 52 and the bottom plate 51 changes, the top plate 52 is lifted, and the tray 41 is jacked up from the conveying mechanism 3;
S5, the workpiece clamping and righting mechanism 9 is controlled by the front-back moving mechanism 93 to enable the first clamping jaw assembly 94 to be close to the damper body, the damper body is clamped by the first clamping jaw assembly 94, connection of the machine body assembly 2 and the damper body is achieved, and secondary righting and positioning are conducted on the damper body;
S6, a horizontal pushing cylinder 81 of the spring centralizing tool 8 pushes a centralizing clamping block 82, and the centralizing clamping block 82 centralizes springs on the shock absorber body from three directions;
S7, a protection rod 643 of the spring jumping-out prevention mechanism 64 stretches out under the control of a lifting driving mechanism III 641 to correspondingly protect staff;
S8, the nut tightening mechanism 6 is driven to descend by the second lifting driving mechanism 60, and simultaneously drives the workpiece guide assembly 7 to descend the pre-pressing spring together until the connecting rod threads of the shock absorber are exposed out of the connecting plate assembly, and a nut can be manually installed;
S9, if the workpiece guide assembly 7 is lowered and then cannot be smoothly guided into the connecting plate assembly of the shock absorber, the workpiece guide assembly 7 can be manually pulled down to guide the connecting plate assembly;
s10, after the nut screwing mechanism 6 descends to the proper position, the guide pen cap is taken out manually, and a nut is pre-screwed;
s11, extending a lifting cylinder 62 connected with the tightening gun 63 to a proper position, and controlling the tightening gun 63 to descend to start tightening the nut;
And S12, after the nut is screwed, the nut screwing mechanism 6, the workpiece clamping and righting mechanism 9, the spring righting tool 8, the spring clamping jaw 431 on the tray 41, the workpiece righting assembly 7 and the jacking force bearing mechanism 5 are all returned to the original positions, and the tray 41 flows out of the conveying mechanism 3.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (10)
1. The utility model provides a pre-compaction is right to bumper shock absorber and nut tightening equipment which characterized in that: comprising the following steps:
The base is provided with a machine body assembly and a conveying mechanism;
the tray assembly is used for positioning and clamping the shock absorber body to be assembled, and the shock absorber is conveyed by the conveying mechanism after being fixed on the tray assembly and preassembled;
The jacking force-bearing mechanism is arranged on the base and penetrates out of the conveying mechanism to jack the pallet assembly conveyed in place;
the nut tightening mechanism is arranged on the machine body assembly and is used for tightening nuts on the shock absorber body; the nut tightening mechanism comprises a tightening assembly, a lifting driving mechanism II and a spring jumping-out prevention mechanism, wherein the tightening assembly is controlled by the lifting driving mechanism II to perform lifting action, and the spring jumping-out prevention mechanism is arranged on the tightening assembly and used for preventing a spring from jumping out in the nut tightening process;
The workpiece guide assembly is arranged at the lower side of the nut tightening mechanism and used for pre-guiding and positioning the connecting plate assembly on the shock absorber body;
The spring righting tool is arranged on the machine body assembly and positioned at the lower side of the workpiece righting assembly and is used for righting a spring at the outer side of the shock absorber body; the spring centralizing tool comprises a horizontal pushing cylinder and a centralizing clamping block, and the telescopic end of the horizontal pushing cylinder is connected with the centralizing clamping block;
The workpiece clamping and righting mechanism is used for carrying out secondary righting and positioning on the shock absorber body; the workpiece clamping and resetting mechanism comprises a lifting plate, a lifting driving mechanism I, a front-back moving mechanism and a first clamping jaw assembly; the lifting plate is arranged on the machine body assembly; the lifting plate is connected with a lifting driving mechanism I arranged on the base and driven by the lifting driving mechanism I to move up and down; the first clamping jaw assembly is arranged on the lifting plate through a sliding connection plate, and the sliding connection plate is controlled by a front-back moving mechanism arranged on the lower side of the lifting plate to move horizontally to control the first clamping jaw assembly to be close to the shock absorber body.
2. The shock absorber centralizing preload and nut tightening apparatus as defined in claim 1, wherein: the tray assembly comprises a tray and a positioning tool and a clamping device which are arranged on the tray, wherein a limiting clamping groove matched with the bottom end of the shock absorber body is formed in the positioning tool, and the clamping device is arranged on one side of the positioning tool; wherein the clamping device comprises a second clamping jaw assembly and a height adjustment mechanism; the height adjusting mechanism is arranged on the tray, and the second clamping jaw assembly is arranged on the height adjusting mechanism.
3. The shock absorber centralizing preload and nut tightening apparatus as defined in claim 2, wherein: the second clamping jaw assembly comprises a fixed seat, a push rod, a first push block, a sliding block and a first clamping jaw, wherein the sliding block comprises a first sliding block and a second sliding block, the first sliding block and the second sliding block are oppositely arranged in the fixed seat, and the first sliding block and the second sliding block are both connected with the first clamping jaw; the first pushing block is arranged in the fixed seat and is positioned between the first sliding block and the second sliding block, the push rod penetrates through the fixed seat and then is connected with the first pushing block, the first pushing block is also provided with a limit stop, the fixed seat is provided with a limit groove for the limit stop to move, a sliding cover plate is arranged above the limit groove on the fixed seat, and the sliding cover plate is connected with the limit stop; the outside of push rod is equipped with reset clamp spring, be equipped with the spring limiter on the fixing base.
4. The shock absorber centralizing preload and nut tightening apparatus as defined in claim 1, wherein: the jacking force-bearing mechanism comprises a bottom plate, a top plate, a moving plate, a bearing support plate, a guide post and a jacking cylinder; the bottom plate is connected with the top plate through a guide post, the moving plate is arranged on the bottom plate in a sliding manner, and the moving plate is connected with the telescopic end of a jacking cylinder arranged on the bottom plate; the bearing support plate is arranged on the moving plate, the guide plate is arranged at the bottom of the top plate, rollers are arranged on the bearing support plate, guide grooves are formed in the guide plate, and the rollers are embedded into the guide grooves to realize connection of the bearing support plate and the guide plate.
5. The shock absorber centralizing preload and nut tightening apparatus as defined in claim 1, wherein: the tightening assembly comprises a supporting frame, a lifting cylinder and a tightening gun, wherein the supporting frame is arranged on the machine body assembly in a sliding mode, the lifting cylinder is arranged on the supporting frame, and the telescopic end of the lifting cylinder is connected with the tightening gun.
6. The shock absorber centralizing preload and nut tightening apparatus as defined in claim 5, wherein: the workpiece straightening assembly comprises a straightening plate, a straightening tool and a pneumatic balance piece, wherein the straightening plate is arranged at the bottom of the supporting frame and is connected with the pneumatic balance piece arranged in the supporting frame, a guide through hole is formed in the straightening plate, the straightening tool is arranged around the guide through hole, a straightening round pin is arranged around the straightening tool, and a handle is further arranged on one side of the straightening plate.
7. The shock absorber centralizing preload and nut tightening apparatus as defined in claim 5, wherein: the spring jumping prevention mechanism comprises a lifting driving mechanism III, a mounting plate and a protection rod, wherein the mounting plate is connected with the driving end of the lifting driving mechanism III, the protection rod is vertically arranged on the mounting plate, and a groove for guiding the protection rod in an up-and-down sliding manner is formed in the supporting frame.
8. The shock absorber centralizing preload and nut tightening apparatus as defined in claim 1, wherein: the first clamping jaw assembly comprises a clamping cylinder, a second pushing block, a clamping jaw mounting seat, a clamping jaw II and a reset spring, wherein the clamping jaw II comprises two clamping jaws which are arranged in the clamping jaw mounting seat in a rotating mode through a rotating connecting part; the clamping cylinder is arranged on the sliding connecting plate, the second pushing block is connected with the telescopic end of the clamping cylinder, the second pushing block is in contact with the second clamping jaw, when the second pushing block horizontally moves, the second clamping jaw performs closing action, a reset spring is further connected between the second clamping jaw, and two ends of the reset spring are connected with the second clamping jaw through connecting columns respectively.
9. The shock absorber centralizing preload and nut tightening apparatus as defined in claim 1, wherein: the lifting driving mechanism I comprises a servo motor I, a lifting screw rod I and a screw rod nut I; the first servo motor is arranged on the base through a fixing frame, the output end of the first servo motor is connected with the first lifting screw rod, the first screw rod nut is in threaded connection with the first lifting screw rod, and the first screw rod nut is connected with the lifting plate; the second lifting driving mechanism comprises a second servo motor, a second lifting screw rod, a second screw nut and a synchronous pulley assembly, the second servo motor is arranged on the machine body assembly, the output end of the second servo motor is connected with the second lifting screw rod through the synchronous pulley assembly, the second screw nut is arranged on the outer side of the second lifting screw rod, and the second screw nut is connected with the machine body assembly; the top of the lifting screw rod II is in sliding connection with a linear sliding rail arranged on the machine body assembly, and the bottom of the lifting screw rod II is connected with the tightening assembly.
10. A method for centralizing, pre-pressing and screwing nuts of a shock absorber is characterized by comprising the following steps of: the method comprises the following specific steps:
(1) The damper body is positioned to realize one-time clamping;
(2) Preassembling the shock absorber, and manually preassembling a buffer block, a lower spring pad, a spring, an upper spring pad and a connecting plate assembly on the shock absorber body;
(3) The pilot guide positive connecting plate assembly is manually sleeved on the shock absorber connecting rod, and pilot guide positive is carried out on the connecting plate assembly to prevent the connecting plate assembly from being skewed;
(4) Jacking the shock absorber body from the bottom to bear force, and separating the shock absorber body from the conveying line;
(5) The damper body is clamped secondarily, so that secondary correction of the damper body is realized;
(6) The springs on the outer side of the shock absorber body are straightened;
(7) The spring is protected against jumping out;
(8) Pre-pressing a spring on the outer side of the shock absorber body until the connecting rod threads of the shock absorber are exposed out of the connecting plate assembly;
(9) After the pre-pressing spring is in place, the guide pen cap is manually taken out, and the nut is pre-screwed;
(10) Continuously pressing down the spring and tightening the nut;
(11) And after the nut is screwed, the assembled shock absorber is returned to the conveying line to be conveyed and discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410328272.8A CN117921334B (en) | 2024-03-21 | 2024-03-21 | Device and method for centralizing, pre-pressing and nut screwing of shock absorber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410328272.8A CN117921334B (en) | 2024-03-21 | 2024-03-21 | Device and method for centralizing, pre-pressing and nut screwing of shock absorber |
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| KR20050106569A (en) * | 2004-05-04 | 2005-11-10 | 주식회사 만도 | Rod assembly auto insert system of a shock absorber |
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| CN117921334B (en) | 2024-06-07 |
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