CN110450105B - General bolt tightening counter-force arm device - Google Patents
General bolt tightening counter-force arm device Download PDFInfo
- Publication number
- CN110450105B CN110450105B CN201910811437.6A CN201910811437A CN110450105B CN 110450105 B CN110450105 B CN 110450105B CN 201910811437 A CN201910811437 A CN 201910811437A CN 110450105 B CN110450105 B CN 110450105B
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- connecting plate
- sleeve
- lower connecting
- tightening
- head
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- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 241001023788 Cyttus traversi Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a general bolt tightening counter-force arm device, which comprises an upper connecting plate and side plates extending downwards along two sides of the upper connecting plate, wherein a lifting lug assembly extends upwards in the middle of the upper connecting plate, a lower connecting plate is fixed at the lower part between the two side plates, a tightening gun mounting hole is formed in one side of the lower connecting plate, the front end of a tightening gun is fixed in the tightening gun mounting hole, the front end of the tightening gun is connected with a sleeve fixing head, and a sleeve I is connected to the sleeve fixing head; the lower connecting plate is provided with a waist-shaped hole in an extending mode at the other side of the surface of the lower connecting plate at a position close to the mounting hole of the tightening head, a sleeve-type counter-force head or a fixed-type counter-force rod is mounted in the waist-shaped hole, and the sleeve-type counter-force head or the fixed-type counter-force rod and the sleeve on the tightening gun extend along the same side of the vertical direction of the lower connecting plate. The invention overcomes the reaction force in the bolt tightening process and improves the production efficiency on the premise of ensuring the product precision and quality.
Description
Technical Field
The invention relates to the technical field of commercial vehicle part assembly equipment, in particular to a general bolt tightening counterforce arm device.
Background
The chassis assembly of the commercial vehicle has more parts, complex assembly process and particularly more screwing operation of various bolts; there are many very important connection parts, and most of the production at the present stage adopts pneumatic spanner to tighten, then uses torque spanner to tighten again in order to guarantee the tightening torque, controls the quality. Such as: the connection parts of the lower tension rods of the middle and rear axles and the axle, the connection of the V-shaped thrust rods and the axle and the like are very important bearing parts, and the control of the connection tightening moment is very critical. The traditional screwing mode has low efficiency, low precision and low informatization degree, and can not meet the requirements of modern production.
With the development of equipment level, a mature high-torque electric tightening gun (such as Atlas, bosh, horse head and the like) is developed, a tightening controller is configured, tightening torque can be accurately controlled, torque information is automatically stored, a manufacturing management system is uploaded, the system can automatically adjust parameters of equipment according to the type of vehicle products, and the system also has various functions of protection, error prevention and the like. However, the high torque electric tightening gun has a relatively large reaction force in the tightening process, and can not bear the tightening reaction force by being held by an operator like a pneumatic tightening gun. A reliable device is required to withstand the reaction force, ensuring that the tightening process is reliable and the accuracy is precisely controlled.
Disclosure of Invention
In order to overcome the reaction force in the bolt tightening process, the invention provides a universal bolt tightening reaction arm device, and the device is adopted to improve the production efficiency on the premise of ensuring the product accuracy and quality as criteria by using a bolt group or a ready-made process hole which is installed around the bolt.
Therefore, the technical scheme of the invention is that the universal bolt tightening counterforce arm device comprises an upper connecting plate and side plates which are arranged along two sides of the upper connecting plate in a downward extending way, wherein a lifting lug assembly is arranged in the middle of the upper connecting plate in an upward extending way, and the universal bolt tightening counterforce arm device is characterized in that:
a lower connecting plate is fixed at the lower part between the two side plates, a tightening gun mounting hole is formed in one side of the lower connecting plate, the front end of the tightening gun is fixed in the tightening gun mounting hole, the front end of the tightening gun is connected with a sleeve fixing head, and a sleeve I is connected to the sleeve fixing head;
a waist-shaped hole is formed in the lower connecting plate at a position close to the mounting hole of the tightening head in an extending mode, a sleeve-type counter-force head is mounted in the waist-shaped hole, and the sleeve-type counter-force head and a sleeve on the tightening gun are arranged in an extending mode on the same side in the perpendicular direction of the lower connecting plate;
the sleeve-type counterforce head comprises a sleeve II and a connector, one end of the connector is connected with the sleeve II, and the other end of the connector is a waist-shaped hole fixed end on the lower connecting plate; the second sleeve is internally provided with a spring, the outer side of the spring is provided with a T-shaped sliding block, two through limiting sliding grooves are axially symmetrically arranged on the circumferential surface of the second sleeve, the sliding block is provided with a through pin shaft hole, and a spring pin penetrates through the two limiting sliding grooves and the sliding block.
Preferably, the lower connecting plate is rotationally connected with the two side plates, and locking mechanisms are respectively arranged in the horizontal direction and the 90-degree turnover vertical direction, and the concrete structure is as follows: two ends of the lower connecting plate extend towards the same side in the vertical direction and are provided with fixed seats, symmetrical rotating shaft holes are formed in the fixed seats, and positioning pin holes extend upwards along the radial direction of the rotating shaft holes; the lower inner sides of the two side plates are provided with extended rotating shafts, the lower connecting plate is fixed between the two side plates through the rotating shafts, and a first positioning pin mounting hole and a second positioning pin mounting hole are respectively arranged above the vertical direction and a horizontal direction on the rotating circumference corresponding to the positioning pin holes on the side plates and are respectively provided with a telescopic first elastic positioning pin and a telescopic second elastic positioning pin;
when the lower connecting plate is turned to a horizontal use state, the second elastic locating pin stretches into a locating pin hole on the lower connecting plate fixing seat to locate the lower connecting plate; when the lower connecting plate is turned to a vertical use state, the first elastic locating pin stretches into the locating pin hole on the lower connecting plate fixing seat to locate the lower connecting plate.
Aiming at the working condition that a process hole or a mounting hole is formed in the periphery of a bolt group to be screwed up, the sleeve type counterforce head is replaced by a fixed counterforce rod, the fixed counterforce rod comprises a counterforce rod with a movable nut at one end, the movable nut is a waist-shaped hole fixed end on a lower connecting plate, a limiting protrusion is radially arranged on the outer peripheral surface close to one end of the movable nut, a through pin hole is radially arranged between the nut and the limiting protrusion, a plurality of pin holes matched with positioning pin holes on the counterforce rod are formed in the waist-shaped hole penetrating through the upper edge and the lower edge of the lower connecting plate, and a bolt penetrates through the pin hole of the counterforce rod and the pin hole of the lower connecting plate and is used for limiting the circumferential movement of the counterforce rod.
Preferably, the reaction rod is further sleeved with a polyurethane sleeve, and the polyurethane sleeve is fixed through a baffle plate arranged on the other end face of the reaction rod.
The beneficial effects are that: according to the invention, one of the sleeve type counterforce head or the fixed counterforce rod is selected according to the field condition, when a screwed bolt group is arranged beside a target screwed bolt, the sleeve type counterforce head is selected, one end of the sleeve type counterforce head is connected with a middle waist-shaped hole so as to be convenient for adjusting according to the intervals among different bolts, when in screwing operation, a sleeve of the sleeve type counterforce head is sleeved on the bolt head beside the target screwed bolt, after the sleeve on the screwing gun is matched with the target screwed bolt, the screwing gun is opened to perform screwing operation, the screwing gun outputs screwing force to drive the target screwed bolt to rotate, and at the moment, the sleeve type counterforce head bears screwing reaction force and transmits the reaction force to the gun body through a lower connecting plate so as to realize balance with the screwing force. The spring in the sleeve-type counterforce head is compressed along with the tightening of the bolt, and the operation can be completed after the tightening is completed and the spring is withdrawn under the action of the elasticity of the compressed spring; when no bolt is arranged beside the target tightening point, a process hole or a mounting hole is arranged beside the target tightening point, a fixed counter-force rod is adopted, and the counter-force support can be realized by inserting the fixed counter-force rod into the process hole or the mounting hole, so that the target tightening bolt is tightened. The invention reduces labor intensity, improves efficiency and ensures quality.
The device can be turned over by 90 degrees, so that the device can be used in a horizontal posture or a vertical posture and can adapt to different working environments;
the polyurethane sleeve is sleeved on the counter-force rod, so that the process hole is protected, and meanwhile, the counter-force rod has strong wear resistance and prolonged service life.
Drawings
Fig. 1 is a perspective view of a horizontal use posture of the present invention.
Fig. 2 is a perspective view of a vertical use posture of the present invention.
Fig. 3 is a schematic view of the present invention in an operating state.
Fig. 4 is a structural view of the sleeve-type reaction force head of the present invention.
Fig. 5 is a structural view of the fixed reaction force lever of the present invention.
The figure shows: 1. an upper connecting plate; 2. a side plate; 3. a shackle assembly; 4. a lower connecting plate; 5. tightening the gun; 6. a sleeve I; 7. waist-shaped holes; 8. a second sleeve; 9. a connector; 10. a spring; 11. a slide block; 12. limiting sliding grooves; 13. a spring pin; 14. a fixing seat; 15. positioning pin holes; 16. a rotating shaft; 17. a first elastic positioning pin; 18. a second elastic positioning pin; 19. a reaction force lever; 20. a pin hole; 21. a plug pin; 22. a polyurethane sleeve; 23. a baffle; 24. a screw; A. a sleeve-type counterforce head; B. a fixed counterforce rod; C. the target is screwed up with the bolt; D. and (5) screwing the well-screwed bolt group.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, but the embodiment should not be construed as limiting the present invention.
The invention is as shown in fig. 1 to 5:
example 1
A general bolt tightening counterforce arm device, which comprises an upper connecting plate 1 and side plates 2 which are arranged along the two sides of the upper connecting plate in a downward extending way, wherein a reinforcing rib plate is arranged between the upper connecting plate 1 and the side plates 2, a lifting lug assembly 3 is arranged in the middle of the upper connecting plate in an upward extending way,
a lower connecting plate 4 is fixed at the lower part between the two side plates 2, a tightening gun mounting hole is formed in one side of the lower connecting plate, the front end of a tightening gun 5 is fixed in the tightening gun mounting hole and is tightened from the rear by a tightening nut, the front end of the tightening gun is connected with a sleeve fixing head, and a sleeve I6 is connected to the sleeve fixing head;
a waist-shaped hole 7 is formed in the lower connecting plate 4 at a position close to the mounting hole of the tightening head in an extending mode, a sleeve-type counter-force head A is mounted in the waist-shaped hole, and the sleeve-type counter-force head A and a sleeve I6 on the tightening gun are arranged in an extending mode on the same side in the vertical direction of the lower connecting plate 4;
the sleeve-type counter-force head A comprises a sleeve II 8 and a connector 9, one end of the connector 9 is a connecting end with the sleeve II 8, the other end is a waist-shaped hole fixed end on the lower connecting plate 4, and the waist-shaped hole fixed end is provided with a fixed nut 9-1 and a limiting protrusion 9-2; the second sleeve 8 is internally provided with a spring 10, the outer side of the spring is provided with a T-shaped sliding block 11, the circumferential surface of the second sleeve 8 is axially symmetrically provided with two through limiting sliding grooves 12, the sliding block 11 is provided with a through pin shaft hole, and a spring pin 13 passes through the space between the two limiting sliding grooves 12 and the sliding block 11.
The lower connecting plate 4 is rotationally connected with the two side plates 2, and locking mechanisms are respectively arranged in the horizontal direction and the 90-degree turning vertical direction, and the concrete structure is as follows: two ends of the lower connecting plate 4 extend towards the same side in the vertical direction, reinforcing rib plates are arranged on two sides between the connecting plate and the fixing base, symmetrical rotating shaft holes are formed in the fixing base, and a positioning pin hole 15 extends upwards along the radial direction of the rotating shaft holes; the lower inner sides of the two side plates are provided with a rotating shaft 16 which extends out, a lower connecting plate 4 is fixed between the two side plates 2 through the rotating shaft 16, a first positioning pin mounting hole and a second positioning pin mounting hole are respectively arranged above the rotating circumference corresponding to the positioning pin hole 15 on the side plates 2 in the vertical direction and in the horizontal direction, and a telescopic first elastic positioning pin 17 and a telescopic second elastic positioning pin 18 are respectively arranged;
when the lower connecting plate 4 is turned to the vertical direction and is in the horizontal use state, the second elastic positioning pin 18 stretches into the positioning pin hole 15 on the lower connecting plate fixing seat to position the lower connecting plate; when the lower connecting plate 4 is turned to the horizontal direction and is in the vertical use state, the first elastic locating pin 17 stretches into the locating pin hole 15 on the lower connecting plate fixing seat to locate the lower connecting plate.
Example two
Aiming at the working condition with a process hole or a supporting surface, the sleeve-type counterforce head A in the first embodiment is replaced by a fixed counterforce rod B, the fixed counterforce rod B comprises a counterforce rod 19 with a movable nut at one end, one end with the movable nut is a waist-shaped hole fixed end on a lower connecting plate, a limiting bulge is radially arranged on the peripheral surface close to one end with the nut, a penetrating pin hole is radially arranged between the nut and the limiting bulge, a plurality of pin holes 20 matched with positioning pin holes on the counterforce rod are arranged between the upper edge and the lower edge of the lower connecting plate 4 through the waist-shaped hole, and after the position is determined in use, a bolt 21 penetrates through the pin hole of the counterforce rod 19 and the pin hole 20 of the lower connecting plate to limit the circumferential movement of the counterforce rod;
the reaction rod 19 is further sleeved with a polyurethane sleeve 22, the polyurethane sleeve is fixed through a baffle plate 23 arranged on the other end face of the reaction rod, and the baffle plate 23 is fixed through a screw 24.
The working principle of the invention is as follows:
when a screwed bolt group D is arranged beside a target screwing bolt C, a sleeve type counterforce head A device is selected, during screwing operation, a sleeve of the sleeve type counterforce head is sleeved on the bolt head beside the target screwing bolt, after the sleeve on the screwing gun is matched with the target screwing bolt, the screwing gun is opened to perform screwing operation, a spring in the sleeve type counterforce head is compressed along with the screwing of the target screwing bolt, and the operation can be completed after the screwing is completed under the action of elasticity;
when a process hole or a mounting hole is formed beside the target tightening bolt C, a device of a fixed counterforce rod B is adopted to insert the counterforce rod into the process hole or the mounting hole, and other operation methods of operating the same-sleeve counterforce head can realize counterforce support, so that the purpose of tightening the target tightening bolt is achieved.
Where not described in detail in this specification, techniques well known in the art.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (3)
1. The utility model provides a general bolt tightening counter-force arm device, includes the upper junction plate and follows the curb plate that upper junction plate both sides downwardly extending set up, and the centre of upper junction plate upwards extends and is equipped with lug subassembly, its characterized in that:
a lower connecting plate is connected to the lower part between the two side plates, a tightening gun mounting hole is formed in one side of the lower connecting plate, the front end of the tightening gun is fixed in the tightening gun mounting hole, the front end of the tightening gun is connected with a sleeve fixing head, and a sleeve I is connected to the sleeve fixing head;
a waist-shaped hole is formed in the lower connecting plate at a position close to the mounting hole of the tightening head in an extending mode, a sleeve-type counter-force head is mounted in the waist-shaped hole, and the sleeve-type counter-force head and a sleeve on the tightening gun are arranged in an extending mode on the same side in the perpendicular direction of the lower connecting plate;
the sleeve-type counterforce head comprises a sleeve II and a connector, one end of the connector is connected with the sleeve II, and the other end of the connector is a waist-shaped hole fixed end on the lower connecting plate; the second sleeve is internally provided with a spring, the outer side of the spring is provided with a T-shaped sliding block, the circumferential surface of the second sleeve is axially and symmetrically provided with two through limiting sliding grooves, the sliding block is provided with a through pin shaft hole, and a spring pin penetrates through the two limiting sliding grooves and the sliding block;
the lower connecting plate is rotationally connected with the two side plates, and locking mechanisms are respectively arranged in the horizontal direction and the 90-degree turning vertical direction, and the concrete structure is as follows: two ends of the lower connecting plate extend towards the same side in the vertical direction and are provided with fixed seats, symmetrical rotating shaft holes are formed in the fixed seats, and positioning pin holes extend upwards along the radial direction of the rotating shaft holes; the lower inner sides of the two side plates are provided with extended rotating shafts, the lower connecting plate is fixed between the two side plates through the rotating shafts, and a first positioning pin mounting hole and a second positioning pin mounting hole are respectively arranged above the vertical direction and a horizontal direction on the rotating circumference corresponding to the positioning pin holes on the side plates and are respectively provided with a telescopic first elastic positioning pin and a telescopic second elastic positioning pin;
when the lower connecting plate is turned to a horizontal use state, the second elastic locating pin stretches into a locating pin hole on the lower connecting plate fixing seat to locate the lower connecting plate; when the lower connecting plate is turned to a vertical use state, the first elastic locating pin stretches into the locating pin hole on the lower connecting plate fixing seat to locate the lower connecting plate.
2. A universal bolt tightening reaction arm arrangement according to claim 1, characterized in that: the sleeve type counter force head is replaced with a fixed counter force rod, the fixed counter force rod comprises a counter force rod with a movable nut at one end, a limiting protrusion is radially arranged on the outer peripheral surface close to one end with the nut, a through pin hole is radially arranged between the nut and the limiting protrusion, a plurality of pin holes matched with the positioning pin holes on the counter force rod are formed between the upper edge and the lower edge of the lower connecting plate through kidney-shaped holes, and a bolt penetrates through the pin hole of the counter force rod and the pin holes of the lower connecting plate and is used for limiting circumferential movement of the counter force rod.
3. A universal bolt tightening counter-force arm device according to claim 2, wherein: the reaction rod is sleeved with a polyurethane sleeve, and the polyurethane sleeve is fixed through a baffle plate arranged on the other end face of the reaction rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910811437.6A CN110450105B (en) | 2019-08-30 | 2019-08-30 | General bolt tightening counter-force arm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910811437.6A CN110450105B (en) | 2019-08-30 | 2019-08-30 | General bolt tightening counter-force arm device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110450105A CN110450105A (en) | 2019-11-15 |
| CN110450105B true CN110450105B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910811437.6A Active CN110450105B (en) | 2019-08-30 | 2019-08-30 | General bolt tightening counter-force arm device |
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| Country | Link |
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| CN (1) | CN110450105B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114102500A (en) * | 2021-11-12 | 2022-03-01 | 东风柳州汽车有限公司 | Counter torque assembly and electric torque device |
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| CN202528114U (en) * | 2012-03-29 | 2012-11-14 | 中联重科股份有限公司 | Screwing wrench and screw mounting structure |
| CN106141978A (en) * | 2016-07-15 | 2016-11-23 | 安徽江淮汽车股份有限公司 | Tighten counter-force mechanism |
| CN107529470A (en) * | 2017-09-02 | 2018-01-02 | 上海魁殊自动化科技有限公司 | A kind of cluster bolt tightens harness |
| CN208681488U (en) * | 2018-08-14 | 2019-04-02 | 安徽吉斯通自动化装备有限公司 | Penetrate through axle lock nut tightening tool |
| CN209190211U (en) * | 2018-12-11 | 2019-08-02 | 山东中车同力达智能机械有限公司 | A kind of online brake disk mounted bolt automatic screwing-down of wheel |
| CN210704636U (en) * | 2019-08-30 | 2020-06-09 | 湖北汉唐智能科技股份有限公司 | Universal bolt tightening counter-force arm device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6857174B2 (en) * | 2002-01-15 | 2005-02-22 | Denso Corporation | Robot hand for high load work |
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2019
- 2019-08-30 CN CN201910811437.6A patent/CN110450105B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1110461A (en) * | 1997-06-17 | 1999-01-19 | Toshiba Corp | Screw fastening device |
| CN2573167Y (en) * | 2002-10-09 | 2003-09-17 | 上海电动工具研究所 | Counter force arm supporter of handheld double-thread assembling system |
| CN201848691U (en) * | 2010-10-23 | 2011-06-01 | 大连德新机电技术工程有限公司 | Electric tightening head with reacting force protective device |
| CN102451993A (en) * | 2010-10-25 | 2012-05-16 | 大连德新机电技术工程有限公司 | Single-axis yaw electric bolt tightening machine |
| CN202528114U (en) * | 2012-03-29 | 2012-11-14 | 中联重科股份有限公司 | Screwing wrench and screw mounting structure |
| CN106141978A (en) * | 2016-07-15 | 2016-11-23 | 安徽江淮汽车股份有限公司 | Tighten counter-force mechanism |
| CN107529470A (en) * | 2017-09-02 | 2018-01-02 | 上海魁殊自动化科技有限公司 | A kind of cluster bolt tightens harness |
| CN208681488U (en) * | 2018-08-14 | 2019-04-02 | 安徽吉斯通自动化装备有限公司 | Penetrate through axle lock nut tightening tool |
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| CN110450105A (en) | 2019-11-15 |
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