CN209954600U - Auxiliary connecting mechanism for auxiliary frame assembly and control arm assembly tool and bolt and nut - Google Patents

Auxiliary connecting mechanism for auxiliary frame assembly and control arm assembly tool and bolt and nut Download PDF

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Publication number
CN209954600U
CN209954600U CN201920386309.7U CN201920386309U CN209954600U CN 209954600 U CN209954600 U CN 209954600U CN 201920386309 U CN201920386309 U CN 201920386309U CN 209954600 U CN209954600 U CN 209954600U
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China
Prior art keywords
positioning
hole
bolt
nut
block
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Active
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CN201920386309.7U
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Chinese (zh)
Inventor
丁刚强
邓小琳
黄伟
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Liuzhou Wuling Automobile Industry Co Ltd
Liuzhou Wuling Motors Co Ltd
Guangxi Automobile Group Co Ltd
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Liuzhou Wuling Automobile Industry Co Ltd
Guangxi Automobile Group Co Ltd
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Priority to CN201920386309.7U priority Critical patent/CN209954600U/en
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Publication of CN209954600U publication Critical patent/CN209954600U/en
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Abstract

The utility model discloses an auxiliary connection mechanism for assembling tool and bolt nut of auxiliary frame assembly and control arm, this mechanism includes: the first guide rail extends along the left-right direction, the first sliding part matched with the first guide rail and the first positioning assembly for positioning the first sliding part; the second guide rail extends along the front-back direction and is fixedly connected with the first sliding part, the second sliding part matched with the second guide rail and a second positioning component for positioning the second sliding part; a support arm extending along the up-down direction and having a lower end connected to the second sliding part; and the inner hole of the sleeve is used for bearing the nut and can limit the rotation of the nut, and the axis of the inner hole is parallel to the axis of the through hole for penetrating the bolt. By adopting the mechanism, the nut can be aligned with the through hole by sliding the first sliding part, the nut can be sent into a narrow cavity of the auxiliary frame assembly by sliding the second sliding part, and reverse torque is not required to be manually applied to the nut in the process of screwing the bolt, so that the pre-connection of the bolt and the nut can be easily and simply realized.

Description

Auxiliary connecting mechanism for auxiliary frame assembly and control arm assembly tool and bolt and nut
Technical Field
The utility model relates to an automobile assembling technical field especially relates to an assembly fixture and bolt nut auxiliary connection mechanism that sub vehicle frame assembly and control arm are connected.
Background
In a typical rear independent suspension product, the end of the control arm adjacent the wheel hub is attached to the subframe assembly at a corresponding location by a bolt and nut, the corresponding location being generally in the form of a narrow cavity opening to the rear lower side, the nut being located in the cavity in the attached condition, and the bolt extending through the control arm into the cavity and threading the nut together.
When connecting this bolt and nut, need the manual work earlier with both pre-connected together, just later can screw up both through electric torque rifle. However, since the opening of the cavity faces the rear lower side, the operator cannot visually recognize the inside of the cavity, and therefore, it is difficult to align the nut with the bolt when manually putting the nut into the cavity. Moreover, because the space of the cavity is narrow, when the nut is manually placed, the operation is inconvenient, the nut can easily slide off the hand, and once the nut slides off the track of the conveying line body, the production line is likely to be blocked.
In view of this, how to make the pre-connection of the nut and the bolt simpler and easier to operate is a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a bolt and nut auxiliary connection mechanism, include:
the first guide rail extends along the left-right direction, the first sliding part matched with the first guide rail and the first positioning assembly used for positioning the first sliding part;
the second guide rail extends along the front-back direction, the second sliding part is matched with the second guide rail, and the second positioning assembly is used for positioning the second sliding part;
a support arm extending in the up-down direction, the lower end of the support arm being connected to the second sliding portion;
and the inner hole of the sleeve is used for bearing a nut to be connected, and the inner hole is matched with the periphery of the nut to limit the rotation of the nut, and the axis of the inner hole is parallel to the axis of the through hole penetrating through the bolt to be connected.
By adopting the bolt and nut auxiliary connecting mechanism, the nut can be aligned with the through hole penetrating through the to-be-connected bolt by sliding the first sliding part, the nut can be sent into the narrow cavity of the auxiliary frame assembly by sliding the second sliding part, and the reverse torque is not required to be manually applied to the nut in the process of screwing the bolt, so that the pre-connection of the bolt and the nut can be easily, simply and conveniently realized.
According to the bolt and nut auxiliary connecting mechanism, the first positioning component specifically comprises a first positioning pin and a first positioning block positioned below the first positioning pin, the first positioning block is provided with a plurality of first positioning holes matched with the first positioning pin, and the first positioning holes are sequentially arranged along the left-right direction;
the second positioning assembly specifically comprises a second positioning pin and a second positioning block located below the second positioning pin, the second positioning block is provided with a plurality of second positioning holes matched with the second positioning pin, and the second positioning holes are sequentially arranged along the front-back direction.
The bolt and nut auxiliary connecting mechanism further comprises an unlocking assembly, wherein the unlocking assembly is used for enabling the second positioning pin to be separated from the second positioning hole; the unlocking assembly specifically comprises: the first connecting block is fixedly connected with the second sliding part, the connecting frame is hinged with the first connecting block, the operating handle is connected with the connecting frame and extends forwards, and the second connecting block is connected with the connecting frame; the second positioning pin is fixedly embedded in the second connecting block; the first connecting block and the hinge shaft of the connecting frame extend in the left-right direction.
As above bolt and nut auxiliary connection mechanism, the link is equipped with first connecting hole, first connecting hole is the slotted hole that extends along the front and back direction, the lower extreme of support arm is equipped with the second connecting hole, bolt and nut auxiliary connection mechanism still includes coupling assembling, coupling assembling specifically includes:
the third connecting block is fixedly connected to the second sliding part and provided with a third connecting hole and an inserting groove, the third connecting hole is a long round hole extending in the vertical direction, and the lower end of the support arm is inserted into the inserting groove;
the fourth connecting block is provided with a guide hole matched with the third connecting block, and the guide hole extends vertically to guide the fourth connecting block to move vertically;
the front end of the first connecting shaft is fixedly connected to the fourth connecting block and penetrates through the second connecting hole and the third connecting hole, and the rear end of the first connecting shaft is fixedly connected to the second connecting block;
and one end of the second connecting shaft is fixedly connected with the fourth connecting block, and the other end of the second connecting shaft penetrates through the first connecting hole.
According to the bolt and nut auxiliary connecting mechanism, the second connecting hole is an oblong hole extending along the vertical direction, and the width of the second connecting hole is gradually increased from bottom to top.
The bolt and nut auxiliary connecting mechanism further comprises a locking assembly, wherein the locking assembly is used for enabling the second positioning pin to be automatically inserted into the second positioning hole; the locking assembly specifically comprises: a spring and a spring seat plate; the spring seat plate is positioned above the fourth connecting block and fixedly connected with the second sliding part, and the spring is positioned between the spring seat plate and the fourth connecting block and is in a compressed state so as to downwards abut against the fourth connecting block.
The bolt and nut auxiliary connecting mechanism further comprises a wedge block which is supported below the second guide rail, so that the rear end of the second guide rail is inclined upwards relative to the front end.
Furthermore, the utility model provides an assembly fixture of sub vehicle frame assembly and control arm, assembly fixture includes the frock platform, the collection is equipped with two above-mentioned arbitrary items on the frock platform bolt and nut assist coupling mechanism, both follow left and right direction interval arrangement.
According to the assembly tool, the tool platform is further provided with two first supports, two first support columns and two second support columns; the two first supports are arranged at intervals along the left-right direction and are used for supporting the wheel hubs of the auxiliary frame assembly; the two first supporting columns are arranged at intervals along the left-right direction, and the upper ends of the two first supporting columns are provided with fixing pins which are used for being matched with pin holes in a cross beam of the auxiliary frame assembly; and the two second supporting columns are arranged at intervals along the left-right direction and are used for supporting the longitudinal beam of the auxiliary frame assembly.
According to the assembly tool, the tool platform is further provided with a sliding rail and a sliding block matched with the sliding rail, the sliding rail extends along the left-right direction, and the bottom of the first support is fixedly connected with the sliding block.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the assembly fixture provided by the present invention;
FIG. 2 is a schematic view of the auxiliary subframe assembly and the control arm using the assembly tool shown in FIG. 1;
FIG. 3 is a schematic structural view of the bolt-nut auxiliary connecting mechanism in FIG. 1;
FIGS. 4-8 are schematic views of portions of the structure of FIG. 3;
the reference numerals in fig. 1 to 8 are explained as follows:
01 control arm, 02 bolt, 03 hub, 04 crossbeam, 05 longeron.
10, a bolt and nut auxiliary connecting mechanism;
101 a first guide rail, 102 a first sliding part, 1021 a first sliding seat, 1022 a first sliding plate, 103 a first positioning pin, 104 a first positioning block, 105 a second guide rail, 106 a second sliding part, 1061 a second sliding seat, 1062 a second sliding plate, 107 a second positioning pin, 108 a second positioning block, 109 an arm, 109a second connecting hole, 110 a sleeve, 111 a first connecting block, 112 a second connecting block, 113a connecting frame, 113a first connecting hole, 114 an operating handle, 115a third connecting block, 115a third connecting hole, 116a fourth connecting block, 116a guiding hole, 117 a first connecting shaft, 118 a second connecting block, 119 spring seat plate, 120 spring, 121 wedge block, 122 stop block, 123 cover plate;
20, assembling a tool;
21 tooling platform, 22 first support, 23 first support, 231 fixed pin, 24 second support, 25 slide rail and 26 slide block.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following provides a detailed description of the technical solution of the present invention with reference to the accompanying drawings.
It should be noted that when a component is referred to as extending in a direction, the length of the component is generally along the direction, but is not limited to being parallel to the direction.
Referring to fig. 1 to 2, fig. 1 is a schematic structural diagram of an embodiment of an assembly fixture provided by the present invention; fig. 2 is a schematic diagram illustrating the auxiliary subframe assembly and the control arm connected by using the assembly tool in fig. 1.
As shown in fig. 1, the assembly tool includes a tool platform 21. Two bolt and nut auxiliary connecting mechanisms 10, two first supports 22, two first support columns 23 and two second support columns 24 are assembled on the tooling platform 21.
Wherein, two bolt and nut auxiliary connecting mechanisms 10 are arranged at intervals along the left-right direction. As shown in fig. 2, a narrow cavity is formed at each of the left lower side and the right lower side of the subframe assembly, a through hole is formed in each of the walls of the two narrow cavities, a bolt 02 penetrates through the left end and the left through hole of the left control arm 01, and is screwed with a nut located in the narrow cavity at the left side. And the other bolt 02 penetrates through the right end of the right control arm 01 and the through hole on the right side and is screwed with the nut in the narrow cavity on the right side, and when the bolt-nut auxiliary connecting mechanism on the right side is used for assisting the connection of the bolt and the nut.
Two first brackets 22 are arranged at intervals in the left-right direction, as shown in fig. 2, when in use, the left first bracket 22 supports the left hub 03 of the subframe assembly, and the right first bracket 22 supports the right hub 03 of the subframe assembly.
The two first pillars 23 are arranged at intervals in the left-right direction, and the upper ends of the two first pillars are provided with fixing pins 231, as shown in fig. 2, when the fixing device is applied, the two fixing pins 231 are respectively matched with two pin holes on the cross beam 04 of the subframe assembly.
Two of the second pillars 24 are spaced apart in the left-right direction, and as shown in fig. 2, the left second pillar 24 supports the left side rail 05 of the subframe assembly, and the right second pillar 24 supports the right side rail 05 of the subframe assembly.
With this arrangement, the subframe assembly is stably supported above the tooling platform 21 by the first bracket 22, the first pillar 23 and the second pillar 24 for controlling the arm connection.
Further, the tooling platform 21 is further provided with a slide rail 25 and a slide block 26 matched with the slide rail 25 in an integrated manner, the slide rail 25 extends in the left-right direction, and the bottom of the first support 22 is fixedly connected to the slide block 26. In use, the left-right spacing distance of the two first brackets 22 can be adjusted by sliding the slider 26 to accommodate different hub spacings.
The structure of the bolt-nut auxiliary connecting mechanism 10 will be described in detail below, please refer to fig. 3-8 together, fig. 3 is a schematic structural diagram of the bolt-nut auxiliary connecting mechanism in fig. 1, and fig. 4-8 are schematic partial structural diagrams in fig. 3.
As shown in fig. 3, the bolt-nut auxiliary connecting mechanism 10 includes:
a first guide rail 101 extending in the left-right direction, a first sliding portion 102 engaged with the first guide rail 101, and a first positioning member for positioning the first sliding portion 102;
a second guide rail 105 extending in the front-rear direction, a second sliding portion 106 engaged with the second guide rail 105, and a second positioning assembly for positioning the second sliding portion 106, wherein the second guide rail 105 is fixedly connected to the first sliding portion 102, so that both the second guide rail 105 and the second sliding portion 106 can slide along with the sliding of the first sliding portion 102;
an arm 109 extending in the up-down direction, a lower end of the arm 109 being connected to the second sliding portion 106 so that the arm 109 can slide with the sliding of the second sliding portion 106;
and is connected to a sleeve 110 at the upper end of the arm 109, and the inner hole of the sleeve 110 is used for accommodating a nut to be connected. And the inner hole is matched with the periphery of the nut to be connected, namely the cross section shape and the size of the inner hole are basically consistent with the cross section shape and the size of the nut to be connected, so that the rotation of the nut is limited by the hole wall of the inner hole, and the axis of the inner hole is parallel to the axis of a through hole (hereinafter referred to as a bolt through hole) for penetrating the bolt to be connected.
When the bolt is used, the first sliding part 102 can be slid as required to drive the sleeve 110 to slide along the left-right direction, so that the inner hole of the sleeve 110 is aligned with the bolt through hole. After sliding to the proper position, the first positioning assembly is locked, so that the first sliding portion 102 is fixed at the proper position.
The nut is then installed into the internal bore of the sleeve 110 and the second sliding portion 106 may be slid rearwardly as necessary before the nut is installed so that the sleeve 110 is located outside the narrow cavity of the subframe assembly so that the nut is not disturbed by the narrow cavity when installed.
After the nut is fitted into the sleeve 110, the second sliding portion 106 is slid forward, the nut is fed into the narrow cavity, and after the nut is slid in place, the second sliding portion 106 is fixed in place.
Then, the bolt 02 is inserted through the end of the control arm 02 and the bolt through hole to be in contact with the nut in the narrow cavity, and then the bolt is screwed to connect the bolt and the nut in advance, and in the process of screwing the bolt 02, because the nut cannot rotate under the limiting action of the inner hole wall of the sleeve 110, reverse torque does not need to be applied to the nut manually.
Therefore, by adopting the bolt and nut auxiliary connecting mechanism, the nuts can be aligned with the bolt through holes by sliding the first sliding part 102, the nuts can be sent into the narrow cavity of the auxiliary frame assembly by sliding the second sliding part 106, and in the process of screwing the bolt, reverse torque does not need to be manually applied to the nuts, so that the pre-connection of the bolts and the nuts can be easily and conveniently realized.
Specifically, as shown in fig. 4, the first sliding portion 102 includes a plurality of first sliding seats 1021 (two in the figure) and a first sliding plate 1022, each of the first sliding seats 1021 is engaged with one of the first guide rails 101, and the first sliding plate 1022 is connected above each of the first sliding seats 1021. The second sliding part 106 also includes a plurality of second slides 1061 (two in the figure) and a second sliding plate 1062, each second slide 1061 is engaged with a second guide rail 105, the second sliding plate 1062 is connected above each second slide 1061, and the second guide rail is connected above the first sliding plate 1022.
Preferably, the two end portions of the first guide rail 101 and the two end portions of the second guide rail 105 are provided with the stop blocks 122 to prevent the first sliding portion 102 from slipping out of the first guide rail 101 and the second sliding portion 106 from slipping out of the second guide rail 105.
Specifically, as shown in fig. 5, the first positioning assembly includes a first positioning pin 103 and a first positioning block 104 located below the first positioning pin 103, the first positioning block 104 is provided with a plurality of first positioning holes matched with the first positioning pin 103, and the first positioning holes are sequentially arranged along the left-right direction. The second positioning assembly includes a second positioning pin 107 and a second positioning block 108 located below the second positioning pin 107, the second positioning block 108 is provided with a plurality of second positioning holes matched with the second positioning pin 107, and the second positioning holes are sequentially arranged along the front-back direction.
In the specific embodiment, the first positioning pin 103 is located above the first sliding plate 1022, the first positioning block 104 is located below the first sliding plate 1022 and between the two first sliding seats 1021, and the first positioning pin 103 is inserted into the first positioning hole after passing through the first sliding plate 1022. The second positioning pin 107 is located above the second sliding plate 1062, the second positioning block 108 is located below the second sliding plate 1062 and between the two second sliding seats 1061, and the second positioning pin 107 passes through the second sliding plate 1062 and then is inserted into the second positioning hole.
When the first sliding part 102 needs to slide, the first positioning pin 103 is pulled out of the first positioning hole to realize unlocking, and after the first positioning pin 103 slides in place, the first positioning pin is inserted into the first positioning hole to realize locking. When the second sliding portion 106 needs to slide, the second positioning pin 107 is pulled out of the second positioning hole to realize unlocking, and after the second positioning pin 107 slides in place, the second positioning pin 107 is inserted into the second positioning hole to realize locking.
It should be noted that the structures of the first positioning assembly and the second positioning assembly are not limited to the examples in the drawings, for example, a rotatable lock hook may be disposed on the guide rail, a lock hole may be disposed on the sliding portion, locking may be achieved by screwing the lock hook into the lock hole, and unlocking may be achieved by screwing the lock hook out of the lock hole.
Specifically, a wedge block 121 may be further disposed below the second rail 105, so that a rear end of the second rail 105 is inclined upward relative to a front end. In some types of subframe assemblies, the axis of the bolt through hole does not extend along the horizontal direction, but the front end of the bolt through hole is slightly inclined downwards, and the axis of the inner hole of the sleeve 110 can be parallel to the axis of the bolt through hole by arranging the wedge block 121, and it should be noted that, in practical application, the wedge block 121 with different inclination can be replaced according to needs.
Specifically, a component for preventing the nut from falling off may be further disposed in the inner hole of the sleeve 110, for example, the component may be a magnetic component, and the component may prevent the nut from falling off by means of magnetic force, or the component may be an elastic component, and specifically, the component may prevent the nut from falling off by means of elastic force for the spring steel ball disposed on the circumferential wall of the inner hole.
Further, the bolt-nut auxiliary connecting mechanism may further include an unlocking assembly for disengaging the second positioning pin 107 from the second positioning hole.
Specifically, as shown in fig. 6, the unlocking assembly includes: a first link block 111 attached to the second sliding portion 106, a link frame 113 hinged to the first link block 111, a second link block 112 connected to the link frame 113, and an operating handle 114 connected to the link frame 113 and extending forward. The second positioning pin 107 is fixedly fitted to the second connecting block 112, and the hinge axis of the first connecting block 111 and the connecting frame 113 extends in the left-right direction.
During application, as shown in fig. 2, the operating handle 114 extends to the front side of the subframe assembly, and by lifting the operating handle 114 upward, the connecting frame 113 can be driven to swing upward around the hinge shaft, so as to drive the second positioning block 108 and the second positioning pin 107 embedded in the second positioning block 108 to move upward, so that the second positioning pin 107 can be disengaged from the second positioning hole below, and unlocking of the second positioning assembly is achieved.
Through setting up the unblock subassembly as above, need not stretch the below of sub vehicle frame assembly with the hand when unblock second locating component, make unblock operation simple and easy to do.
In the embodiment, the first connecting block 111 is a U-shaped block with an opening facing downward, the second connecting block 112 is located in a groove of the U-shaped block, the connecting frame 113 is a U-shaped frame with an opening facing rearward, and the U-shaped block is located between and hinged to the left and right arms of the U-shaped frame. So set up, make unblock subassembly compact structure, have higher integrated level.
Further, the bolt-nut auxiliary connection mechanism may further include a connection member, and, as shown in fig. 6, the connection frame 113 is provided with a first connection hole 113a, and the second connection block 112 is connected to the first connection hole 113a by the connection member. In the figure, the left and right arms of the connecting frame 113 are respectively provided with a first connecting hole 113 a.
Specifically, the first connection hole 113a is an oblong hole extending in the front-rear direction. Specifically, as shown in fig. 6 and 7, the connection assembly includes: a third connecting block 115, a fourth connecting block 116, a first connecting shaft 117, and a second connecting shaft 118.
Wherein the third connecting block 115 is fixedly connected to the first sliding portion 102, in the figure, the third connecting block 115 is fixedly connected to the second sliding plate 1062. And, the third connecting block 115 is provided with a slot, the lower end of the supporting arm 109 is inserted into the slot and the lower end of the supporting arm 109 is provided with a second connecting hole 109 a. As shown in fig. 8, the third connecting block 115 is further provided with a third connecting hole 115a, and the third connecting hole 115a is an oblong hole extending in the vertical direction.
As shown in fig. 7, the fourth connecting block 116 is provided with a guide hole 116a, and the fourth connecting block 116 is sleeved on the third connecting block 115 through the guide hole 116a, the guide hole 116a is matched with the outer periphery of the third connecting block, and the guide hole 116a extends vertically to guide the fourth connecting block 116 to move vertically, i.e. vertically to the horizontal plane.
The front end of the first connecting shaft 117 is fixedly connected to the fourth connecting block 116 and passes through the second connecting hole 109a and the third connecting hole 115a, and the rear end is fixedly connected to the second connecting block 112.
One end of the second connecting shaft 118 is fixedly connected to the fourth connecting block 116, and the other end thereof penetrates through the first connecting hole 113 a. In the drawing, two second connecting shafts 118 are provided, one of which has a left end extending into the first connecting hole 113a provided in the left arm of the connecting frame 113 and the other of which has a right end extending into the first connecting hole 113a provided in the right arm of the connecting frame 113. In the figure, the connecting frame 113 is further provided with a cover plate 123 on the left side surface of the left side arm and the right side surface of the right side arm.
When the lock is unlocked, the lifting force applied to the operating handle 114 is transmitted to the second positioning pin 107 sequentially through the connecting frame 113, the second connecting shaft 118, the fourth connecting block 116, the first connecting shaft 117 and the second connecting block 112, so that the second positioning pin 107 moves upwards, and the moving direction of the second positioning pin 107 is perpendicular to the horizontal plane under the matching guiding action of the guide hole 116a and the third connecting block 115, so that the second positioning pin 107 can be smoothly separated from the second positioning hole.
The connecting assembly has the following advantages: on one hand, the connection of the second connecting block 112 and the connecting frame 113 and the connection of the support arm 109 and the second sliding part 106 can be simultaneously realized; on the other hand, the second positioning pin 107 can move vertically, so that the second positioning pin 107 can be conveniently and smoothly separated from the second positioning hole; on the other hand, by providing the first connection hole 113a as an oblong hole, a relative displacement can be generated between the second connection shaft 118 and the first connection hole 113a during the upward lifting of the operation handle 114, so that the movement interference can be effectively prevented.
Preferably, the second connection hole 109a is an oblong hole extending in the vertical direction, and the width of the second connection hole 109a gradually increases from bottom to top. With such an arrangement, on one hand, the supporting arm 109 can have a certain horizontal swinging space and a certain vertical floating space to adapt to position change in the bolt screwing process, and on the other hand, the risk that the supporting arm 109 horizontally swings to cause the mutual interference between the hole wall of the second connecting hole 109a and the first connecting shaft 117 to cause the first connecting shaft 117 not to move upwards can be avoided.
Further, the bolt-nut auxiliary connection mechanism may further include a locking assembly for automatically inserting the second positioning pin 107 into the second positioning hole.
Specifically, the locking assembly includes: a spring 120 and a spring seat plate 119. A spring seat plate 119 is located above the fourth connecting block 116 and is attached to the second sliding portion 106, wherein the spring seat plate 119 is attached to the upper surface of the first connecting block 111, and the arm 109 passes through the spring seat plate 119. The spring 120 is located between the spring seat plate 119 and the fourth connecting block 116 and is in a compressed state to press the fourth connecting block 116 downward.
In application, after the second positioning pin 107 is disengaged from the second positioning hole by lifting the operating handle 114 upward, the second sliding portion 106 needs to be pulled forward or pushed backward. In the process of pushing and pulling the second sliding portion 106, the operating handle 114 is not lifted up any more, and the lower end of the second positioning pin 107 is attached to the upper surface of the second positioning block 108 to slide under the action of the elastic force of the spring 120, and when the operating handle slides to the position right above the second positioning hole, the operating handle is automatically inserted into the second positioning hole under the action of the elastic force of the spring 120 to realize locking.
It is right above the utility model provides an assembly fixture and bolt nut auxiliary connection mechanism of sub vehicle frame assembly and control arm have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. A bolt-nut auxiliary connection mechanism, characterized in that the bolt-nut auxiliary connection mechanism (10) comprises:
the device comprises a first guide rail (101) extending along the left-right direction, a first sliding part (102) matched with the first guide rail (101) and a first positioning component for positioning the first sliding part (102);
a second guide rail (105) extending in the front-back direction, a second sliding part (106) matched with the second guide rail (105), and a second positioning component for positioning the second sliding part (106), wherein the second guide rail (105) is fixedly connected with the first sliding part (102);
an arm (109) extending in the vertical direction, a lower end of the arm (109) being connected to the second sliding portion (106);
and the inner hole of the sleeve (110) is used for bearing a nut to be connected, the inner hole is matched with the periphery of the nut so as to limit the rotation of the nut, and the axis of the inner hole is parallel to the axis of a through hole for penetrating a bolt to be connected.
2. The bolt and nut auxiliary connecting mechanism is characterized in that the first positioning component specifically comprises a first positioning pin (103) and a first positioning block (104) positioned below the first positioning pin, the first positioning block (104) is provided with a plurality of first positioning holes matched with the first positioning pin (103), and the first positioning holes are sequentially arranged along the left-right direction;
the second positioning assembly specifically comprises a second positioning pin (107) and a second positioning block (108) located below the second positioning pin, the second positioning block (108) is provided with a plurality of second positioning holes matched with the second positioning pin (107), and the second positioning holes are sequentially arranged along the front-back direction.
3. The bolt-nut auxiliary connection mechanism according to claim 2, characterized in that the bolt-nut auxiliary connection mechanism (10) further comprises an unlocking component for disengaging the second positioning pin (107) from the second positioning hole; the unlocking assembly specifically comprises: a first connecting block (111) fixedly connected to the second sliding part (106), a connecting frame (113) hinged with the first connecting block (111), an operating handle (114) connected with the connecting frame (113) and extending forwards, and a second connecting block (112) connected with the connecting frame (113); the second positioning pin (107) is embedded in the second connecting block (112); the hinge axis of the first link block (111) and the link frame (113) extends in the left-right direction.
4. The bolt-nut auxiliary connecting mechanism according to claim 3, wherein the connecting frame (113) is provided with a first connecting hole (113a), the first connecting hole (113a) is an oblong hole extending in the front-rear direction, the lower end of the support arm (109) is provided with a second connecting hole (109a), the bolt-nut auxiliary connecting mechanism further comprises a connecting assembly, and the connecting assembly specifically comprises:
the third connecting block (115) is fixedly connected to the second sliding part (106) and provided with a third connecting hole (115a) and a slot, the third connecting hole (115a) is a long round hole extending in the vertical direction, and the lower end of the support arm (109) is inserted into the slot;
a fourth connecting block (116) provided with a guide hole (116a) fitted with the third connecting block (115), the guide hole (116a) vertically extending to guide the fourth connecting block (116) to vertically move;
a first connecting shaft (117) having a front end fixedly connected to the fourth connecting block (116) and penetrating the second connecting hole (109a) and the third connecting hole (115a), and a rear end fixedly connected to the second connecting block (112);
and one end of the second connecting shaft (118) is fixedly connected with the fourth connecting block (116), and the other end of the second connecting shaft penetrates through the first connecting hole (113 a).
5. The bolt-nut auxiliary connecting mechanism according to claim 4, wherein the second connecting hole (109a) is an oblong hole extending in the up-down direction, and the width of the second connecting hole (109a) gradually increases from bottom to top.
6. The bolt-nut auxiliary connection mechanism according to claim 4, characterized in that the bolt-nut auxiliary connection mechanism (10) further comprises a locking assembly for automatically inserting the second positioning pin (107) into the second positioning hole; the locking assembly specifically comprises: a spring (120) and a spring seat plate (119); the spring seat plate (119) is located above the fourth connecting block (116) and fixedly connected to the second sliding portion (106), and the spring (120) is located between the spring seat plate (119) and the fourth connecting block (116) and is in a compressed state so as to downwardly abut against the fourth connecting block (116).
7. The bolt-nut auxiliary connection mechanism according to any one of claims 1-6, characterized in that the bolt-nut auxiliary connection mechanism further comprises a wedge block (121) supported below the second rail (105) such that a rear end of the second rail (105) is inclined upward with respect to a front end.
8. An assembly fixture for an auxiliary frame assembly and a control arm, which is characterized in that the assembly fixture (20) comprises a fixture platform (21), wherein two bolt and nut auxiliary connecting mechanisms (10) according to any one of claims 1 to 7 are assembled on the fixture platform (21) and are arranged at intervals in the left-right direction.
9. The assembly tooling of claim 8, wherein the tooling platform (21) further comprises two first supports (22), two first pillars (23) and two second pillars (24); the two first brackets (22) are arranged at intervals along the left-right direction and are used for supporting the wheel hub of the auxiliary frame assembly; the two first supporting columns (23) are arranged at intervals along the left-right direction, and the upper ends of the two first supporting columns are provided with fixing pins (231) which are used for being matched with pin holes in a cross beam of the auxiliary frame assembly; the two second supporting columns (24) are arranged at intervals along the left-right direction and are used for supporting the longitudinal beams of the auxiliary frame assembly.
10. The assembly tooling of claim 9, wherein the tooling platform (21) further comprises a slide rail (25) and a slide block (26) adapted to the slide rail (25), the slide rail (25) extends in the left-right direction, and the bottom of the first support (22) is fixedly connected to the slide block (26).
CN201920386309.7U 2019-03-25 2019-03-25 Auxiliary connecting mechanism for auxiliary frame assembly and control arm assembly tool and bolt and nut Active CN209954600U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920386309.7U CN209954600U (en) 2019-03-25 2019-03-25 Auxiliary connecting mechanism for auxiliary frame assembly and control arm assembly tool and bolt and nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920386309.7U CN209954600U (en) 2019-03-25 2019-03-25 Auxiliary connecting mechanism for auxiliary frame assembly and control arm assembly tool and bolt and nut

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CN209954600U true CN209954600U (en) 2020-01-17

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