阅读说明：本技术 一种商用车悬浮座椅u形总装装配线的线上夹具机构 (Online fixture mechanism of commercial vehicle suspension seat U-shaped assembly line ) 是由 郭天芪 尚尔原 杨锐 于 2019-07-16 设计创作，主要内容包括：本发明提供一种商用车悬浮座椅U形总装装配线的线上夹具机构,包括：线上夹具架体、两组装配线轨道上的两组滑动支撑机构、与驱动链条机构活动连接用于防止线上夹具机构碰撞操作人员的安全防撞机构,所述安全防撞机构用于带动所述线上夹具机构在所述驱动链条机构上运动；本发明的优点是：线上夹具机构的整体设计为L形,在装配线轨道上顶面上安装的水平方向滑动机构,装配线轨道的两个侧面上安装的两组竖直方向滑动机构,用于使线上夹具机构能在主装配线轨道上移动,满足了挂壁式行走机构在移动过程中的受力平衡、稳定性且不发生掉落,而沿Z轴方向未完全限制其空间自由度,实现了行走机构在转弯及直线轨道上有一定的活动空间,防止快速磨损。(The invention provides an on-line clamp mechanism of a commercial vehicle suspension seat U-shaped assembly line, which comprises: the online clamp device comprises an online clamp device frame body, two groups of sliding support mechanisms on two groups of assembly line rails, and a safety anti-collision mechanism which is movably connected with a driving chain mechanism and used for preventing the online clamp device mechanism from colliding operators, wherein the safety anti-collision mechanism is used for driving the online clamp device mechanism to move on the driving chain mechanism; the invention has the advantages that: the whole design of the on-line clamp mechanism is L-shaped, the horizontal sliding mechanism is arranged on the top surface of the assembly line track, two groups of vertical sliding mechanisms are arranged on two side surfaces of the assembly line track, the on-line clamp mechanism can move on the main assembly line track, the stress balance of the wall-mounted walking mechanism in the moving process is met, the stability is stable, the falling is avoided, the space freedom degree of the wall-mounted walking mechanism is not completely limited along the Z-axis direction, a certain moving space of the walking mechanism on a turning and linear track is realized, and the rapid wear is prevented.)

1. The utility model provides a commercial car suspension seat U-shaped assembly line's anchor clamps mechanism on line which characterized in that, anchor clamps mechanism includes on the line: the device comprises an online clamp frame body, two groups of sliding support mechanisms and a safety anti-collision mechanism, wherein the two groups of sliding support mechanisms are connected to two groups of assembly line rails of a U-shaped assembly line of the suspension seat in a sliding mode, the safety anti-collision mechanism is movably connected with a driving chain mechanism and used for preventing the online clamp mechanism from colliding operators, and the safety anti-collision mechanism is used for driving the online clamp mechanism to move on the driving chain mechanism;

the two sliding support mechanisms are arranged on the on-line clamp frame body corresponding to the positions of the assembly line tracks, and the safety anti-collision mechanism is arranged on the on-line clamp frame body between the two groups of sliding support mechanisms and corresponds to the position of the driving chain mechanism;

wherein, the sliding support mechanism includes: the horizontal direction sliding mechanism drives the on-line clamp mechanism to slide on the top surface of the assembly line track, and the two vertical direction sliding mechanisms drive the on-line clamp mechanism to slide on the two side surfaces of the assembly line track.

2. The on-line clamp mechanism of the commercial vehicle suspension seat U-assembly line as claimed in claim 1, wherein the horizontal direction sliding mechanism comprises: the device comprises a first sliding frame, at least one group of first rollers which are arranged on the first sliding frame and roll along the horizontal direction, and two first spring reset mechanisms which are propped against two sides of the first sliding frame;

first carriage with be connected through the connecting pin of a vertical setting between the anchor clamps support body on the line, be provided with nut or separation blade at the both ends of connecting pin, connecting pin on the first carriage pass the hole with connecting pin interference fit, first carriage can rotate a little on the connecting pin, first spring return mechanism is used for driving first carriage and resets after first carriage rotates a little.

3. The on-line clamp mechanism of a commercial vehicle suspension seat U-assembly line as claimed in claim 2, wherein said first spring return mechanism comprises: first compression spring and first spacing post, first spacing post with the one end of first carriage contact is provided with the hood, the other end of first spacing post passes on-line anchor clamps support body fixes through the nut, first spacing post is in the mounted position on the on-line anchor clamps support body with the position of first carriage is corresponding, first compression spring's one end top is held on the hood, first compression spring's the other end top is held on the on-line anchor clamps support body.

4. The on-line clamp mechanism of the commercial vehicle suspension seat U-assembly line as claimed in claim 1, wherein the vertical direction sliding mechanism comprises: the second carriage, install at least a set of rolling second roller along vertical direction on the second carriage, connect the second spring return of second carriage and online anchor clamps support body, second spring return includes: two spacing posts of second pressure spring and two second, two the spacing post of second links firmly respectively the second carriage both ends, the spacing post of second is kept away from the one end of second carriage is passed on-line anchor clamps support body links firmly through the nut, the spacing post of second is in the last mounted position on the anchor clamps support body of line with the position of second carriage is corresponding, the one end top of second pressure spring is held on the second carriage, the other end top of second pressure spring is held on the anchor clamps support body of line, the second roller is in slide on the orbital side of assembly line.

5. The on-line clamp mechanism of the commercial vehicle suspension seat U-shaped assembly line as claimed in claim 1, wherein the safety collision avoidance mechanism comprises: at least one group of depositing gears, a depositing gear rack, a third spring return mechanism and a cylinder ejection mechanism;

the wire-fixing device is characterized in that the depositing gear is rotationally connected to the depositing gear rack in the horizontal direction, the depositing gear is meshed with the driving chain of the on-line clamp mechanism, the depositing gear drives the on-line clamp mechanism to move on the driving chain of the on-line clamp mechanism through the depositing gear rack, the depositing gear rack is fixedly connected to the on-line clamp mechanism through the third spring resetting mechanism, a plurality of hemispherical grooves are uniformly distributed on two end faces of the depositing gear, two elastic pins are vertically arranged on the depositing gear rack, the free ends of the elastic pins are hemispherical, the free ends of the two elastic pins are respectively arranged in the hemispherical grooves corresponding to the positions of the elastic pins in the two end faces of the depositing gear, and when the on-line clamp mechanism is not blocked by external force, the depositing gear drives the on-line clamp mechanism to move on the driving chain of the on-line clamp mechanism through the two elastic pins, when external force stops the on-line clamp mechanism, the free ends of the two elastic pins are separated from the hemispherical groove, the on-line clamp mechanism does not move along with the rotation of the depositing gear, and the depositing gear drives the chain to idle along with the on-line clamp mechanism;

a supporting mechanism is arranged below the depositing gear rack and comprises a supporting bracket and a follow-up wheel arranged on the supporting bracket, the upper end of the supporting bracket is fixedly connected to the bottom of the depositing gear rack, the lower end of the supporting bracket is provided with the follow-up wheel, and the follow-up wheel slides on a supporting plate which extends out of the line upper clamp frame body and is parallel to the ground;

the third spring return mechanism includes: one end of the third limiting column is fixedly connected to the on-line clamp mechanism, the other end of the third limiting column penetrates through the depositing gear rack and is fixedly connected through a bolt, or one end of the third limiting column is fixedly connected to the depositing gear rack, the other end of the third limiting column penetrates through the on-line clamp mechanism and is fixedly connected through a bolt, the third resetting spring is sleeved on the third limiting column between the on-line clamp mechanism and the depositing gear rack, one end of the third resetting spring is supported on the on-line clamp mechanism, and the other end of the third resetting spring is supported on the depositing gear rack;

the cylinder ejection mechanism is arranged on the assembly line frame body at a position corresponding to the depositing gear rack, a piston rod of the cylinder ejection mechanism is supported on the depositing gear rack, the piston rod drives the depositing gear rack to move and extrudes a third return spring of the third spring return mechanism to contract with force, and the depositing gear rack drives the depositing gear to separate from the driving chain of the on-line clamp mechanism.

Technical Field

The invention relates to the technical field of automobile part assembly, in particular to an on-line clamp mechanism of a commercial vehicle suspension seat U-shaped assembly line.

Background

In passenger car seat assembly manufacturing process, traditional linear type speed chain assembly line is the most common, and main assembly line adopts motor cooperation chain drive, and line head and line tail equip the lift, and the main function is to transport the return wire head with online tray from the line tail through assembly line lower part. Commercial car suspension seat assembly technology is different from passenger car seat, and its main distinction is present:

1. commercial car seat assembly is wider, and the seat height is higher.

2. The number of parts of the commercial vehicle seat assembly is more than that of the passenger vehicle seat assembly, the average number of parts of the commercial vehicle seat assembly is more than 3 times that of the passenger vehicle seat assembly, and a larger operation space is needed when the final assembly process is executed.

For the first point, in order to meet the requirements of the human engineering to the maximum extent, if a speed chain assembly line is used for assembling a commercial vehicle suspension seat assembly, the height of a line body of the speed chain assembly line is necessarily designed to be low (usually, the design height of the speed chain assembly line is about 850 mm), when a workpiece loading operation is carried out by a first station operator, the operator has to squat to complete the operation, which is a serious human engineering problem.

Secondly, if satisfy the ergonomic reduction equipment line height by force, can face the not enough problem of equipment line downside space in mechanical design, equipment line upside loads the anchor clamps tray, after the operation is accomplished to the final station operator, the tray can be fallen and is sent back the line head by the chain from the line body downside by the lift, if equipment line height is low excessively, passback structure and lift will not have enough activity space, even the space is reluctant enough, also have to compress original structure in mechanical design, do so will reduce the reliability and the security of main equipment line.

Thirdly, from the viewpoint of project cost and project time, one assembly line often not only provides final assembly service for one type of seats, but also solves the problem along with the conventional assembly line from other aspects, namely, the assembly line installation reference is designed at a position lower than the ground height (trench), so that the maintenance, upgrading and reconstruction of the assembly line are not facilitated, and safety risks are also caused.

In order to solve the technical problems, the applicant designs a commercial vehicle suspension seat U-shaped assembly line, but because the traditional seat tray mechanism cannot be used on the assembly line, redesigning a special on-line clamp mechanism for a commercial vehicle seat assembly is an urgent need.

Disclosure of Invention

In view of the above problems, the present invention provides an in-line clamp mechanism for a U-shaped assembly line of a suspension seat of a commercial vehicle, which is used for driving a seat tray mechanism to move on the assembly line, so as to overcome the above disadvantages of the prior art.

The invention provides an on-line clamp mechanism of a commercial vehicle suspension seat U-shaped assembly line, which comprises: the on-line clamp mechanism includes: the device comprises an online clamp frame body, two groups of sliding support mechanisms and a safety anti-collision mechanism, wherein the two groups of sliding support mechanisms are connected to two groups of assembly line rails of a U-shaped assembly line of the suspension seat in a sliding mode, the safety anti-collision mechanism is movably connected with a driving chain mechanism and used for preventing the online clamp mechanism from colliding operators, and the safety anti-collision mechanism is used for driving the online clamp mechanism to move on the driving chain mechanism;

the two sliding support mechanisms are arranged on the on-line clamp frame body corresponding to the positions of the assembly line tracks, and the safety anti-collision mechanism is arranged on the on-line clamp frame body between the two groups of sliding support mechanisms and corresponds to the position of the driving chain mechanism;

wherein, the sliding support mechanism includes: the horizontal direction sliding mechanism drives the on-line clamp mechanism to slide on the top surface of the assembly line track, and the two vertical direction sliding mechanisms drive the on-line clamp mechanism to slide on the two side surfaces of the assembly line track.

Preferably, the horizontal sliding mechanism includes: the device comprises a first sliding frame, at least one group of first rollers which are arranged on the first sliding frame and roll along the horizontal direction, and two first spring reset mechanisms which are propped against two sides of the first sliding frame;

first carriage with be connected through the connecting pin of a vertical setting between the anchor clamps support body on the line, be provided with nut or separation blade at the both ends of connecting pin, connecting pin on the first carriage pass the hole with connecting pin interference fit, first carriage can rotate a little on the connecting pin, first spring return mechanism is used for driving first carriage and resets after first carriage rotates a little.

Preferably, the first spring return mechanism includes: first compression spring and first spacing post, first spacing post with the one end of first carriage contact is provided with the hood, the other end of first spacing post passes on-line anchor clamps support body fixes through the nut, first spacing post is in the mounted position on the on-line anchor clamps support body with the position of first carriage is corresponding, first compression spring's one end top is held on the hood, first compression spring's the other end top is held on the on-line anchor clamps support body.

Preferably, the vertical direction sliding mechanism includes: the second carriage, install at least a set of rolling second roller along vertical direction on the second carriage, connect the second spring return of second carriage and online anchor clamps support body, second spring return includes: two spacing posts of second pressure spring and two second, two the spacing post of second links firmly respectively the second carriage both ends, the spacing post of second is kept away from the one end of second carriage is passed on-line anchor clamps support body links firmly through the nut, the spacing post of second is in the last mounted position on the anchor clamps support body of line with the position of second carriage is corresponding, the one end top of second pressure spring is held on the second carriage, the other end top of second pressure spring is held on the anchor clamps support body of line, the second roller is in slide on the orbital side of assembly line.

Preferably, the safety collision avoidance mechanism includes: at least one group of depositing gears, a depositing gear rack, a third spring return mechanism and a cylinder ejection mechanism;

the wire-fixing device is characterized in that the depositing gear is rotationally connected to the depositing gear rack in the horizontal direction, the depositing gear is meshed with the driving chain of the on-line clamp mechanism, the depositing gear drives the on-line clamp mechanism to move on the driving chain of the on-line clamp mechanism through the depositing gear rack, the depositing gear rack is fixedly connected to the on-line clamp mechanism through the third spring resetting mechanism, a plurality of hemispherical grooves are uniformly distributed on two end faces of the depositing gear, two elastic pins are vertically arranged on the depositing gear rack, the free ends of the elastic pins are hemispherical, the free ends of the two elastic pins are respectively arranged in the hemispherical grooves corresponding to the positions of the elastic pins in the two end faces of the depositing gear, and when the on-line clamp mechanism is not blocked by external force, the depositing gear drives the on-line clamp mechanism to move on the driving chain of the on-line clamp mechanism through the two elastic pins, when external force stops the on-line clamp mechanism, the free ends of the two elastic pins are separated from the hemispherical groove, the on-line clamp mechanism does not move along with the rotation of the depositing gear, and the depositing gear drives the chain to idle along with the on-line clamp mechanism;

a supporting mechanism is arranged below the depositing gear rack and comprises a supporting bracket and a follow-up wheel arranged on the supporting bracket, the upper end of the supporting bracket is fixedly connected to the bottom of the depositing gear rack, the lower end of the supporting bracket is provided with the follow-up wheel, and the follow-up wheel slides on a supporting plate which extends out of the line upper clamp frame body and is parallel to the ground;

the third spring return mechanism includes: one end of the third limiting column is fixedly connected to the on-line clamp mechanism, the other end of the third limiting column penetrates through the depositing gear rack and is fixedly connected through a bolt, or one end of the third limiting column is fixedly connected to the depositing gear rack, the other end of the third limiting column penetrates through the on-line clamp mechanism and is fixedly connected through a bolt, the third resetting spring is sleeved on the third limiting column between the on-line clamp mechanism and the depositing gear rack, one end of the third resetting spring is supported on the on-line clamp mechanism, and the other end of the third resetting spring is supported on the depositing gear rack;

the cylinder ejection mechanism is arranged on the assembly line frame body at a position corresponding to the depositing gear rack, a piston rod of the cylinder ejection mechanism is supported on the depositing gear rack, the piston rod drives the depositing gear rack to move and extrudes a third return spring of the third spring return mechanism to contract with force, and the depositing gear rack drives the depositing gear to separate from the driving chain of the on-line clamp mechanism.

The invention has the advantages and positive effects that:

1. the on-line clamp mechanism is integrally designed to be L-shaped, a horizontal direction sliding mechanism is installed on the top surface of the assembly line rail, and two groups of vertical direction sliding mechanisms are installed on two side surfaces of the assembly line rail, so that the on-line clamp mechanism can move on the main assembly line rail, the stress balance and stability of the wall-mounted travelling mechanism in the moving process are met, the falling is avoided, the spatial freedom degree of the wall-mounted travelling mechanism is not completely limited along the Z-axis direction (vertical direction), a certain moving space of the travelling mechanism on a turning and linear rail is realized, and the rapid abrasion is prevented.

2. In order to prevent the on-line clamp mechanism from shaking and inclining possibly in the moving process, spring structures are designed on the horizontal direction sliding mechanism and the vertical direction sliding mechanism, the spring mounting positions are arranged on the side surfaces of the rollers of the horizontal direction sliding mechanism and the vertical direction sliding mechanism, a certain offset is allowed in the moving process of the walking mechanism in the main line body, once the walking mechanism deviates from a preset track due to some unpredictable reason in the moving process, the walking mechanism can return under the action of the spring elasticity because the springs are mounted on the moving mechanism (namely the rollers and the rollers), namely, the spring elasticity can always act on the track vertical to the moving direction of the walking mechanism, and the moving track of the walking mechanism is corrected immediately, so that the design cost is low, and the reliability is high.

3. The on-line clamp mechanism is designed by adopting the adjustable clamp height, and the height adjusting structure can show that the on-line clamp mechanism and the seat tray mechanism are not designed integrally but are split into two parts, the middle adjusting seat is used as a connecting structure, and the adjusting seat is adjusted by 4 oblong holes to be adjustable and limited.

4. The safety anti-collision mechanism is added, and in consideration of functional failure caused by various uncertain reasons possibly occurring in the electronic equipment under a complex environment, the commercial vehicle suspension seat U-shaped assembly line adopts a pressure carpet and also fundamentally avoids the risk that an operator is possibly knocked down when the on-line clamp mechanism moves on the basis of the design of a mechanical structure; wherein the depositing gear realizes the movement of the on-line clamp mechanism through a group of two gears which can roll on the driving chain. Taking the first station (seat leaning on the connecting station) and the 2 nd station (inner guard plate and safety lock assembling station) as an example, after the first station operator finishes the operation, the traveling mechanism (clamp) of the station is released, the PLC of the main line body receives the releasing instruction at the moment, and the clamp can be released at a proper moment. However, if the release condition is met and the clamp is released, the operator at the 2 nd station enters between the two stations again for some reason, the pressure carpet is also pressed down, but the on-line clamp mechanism at the previous station is released and moving, the main line body cannot automatically handle the situation that the operator enters between the two operation stations, the on-line clamp mechanism still moves forward at the default speed, and the situation that the travelling mechanism (clamp) is in contact with the operator is likely to occur. When the on-line clamp mechanism is contacted with an operator, the on-line clamp mechanism continues to move forwards, when the body of the operator props against the on-line clamp mechanism, the depositing gear on the on-line clamp mechanism plays a role, the on-line clamp mechanism can be kept at a different relative position with the ground under the action of manpower, and the depositing gear starts to be driven by the chain and rolls along the axis of the depositing gear.

Drawings

Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description taken in conjunction with the accompanying drawings. In the drawings:

fig. 1 is a perspective view of an in-line clamp mechanism according to an embodiment of the present invention.

Fig. 2 is a perspective view of a sliding support mechanism of the in-line clamp mechanism according to an embodiment of the present invention.

Fig. 3 is a perspective view of a safety collision avoidance mechanism according to an embodiment of the present invention.

FIG. 4 is a side view of an in-line clamp mechanism configuration according to an embodiment of the present invention.

Fig. 5 is a perspective view of a cylinder ejection mechanism according to an embodiment of the invention.

Fig. 6 is a partial schematic structural view of a front view of a horizontal direction sliding mechanism according to an embodiment of the present invention.

Fig. 7 is a partial schematic structural diagram of a top view of a horizontal sliding mechanism according to an embodiment of the invention.

FIG. 8 is an assembly view of an in-line clamp mechanism and suspended seat U-assembly line according to an embodiment of the present invention.

Wherein the reference numerals include: the online clamp comprises an online clamp frame body 1, a sliding support mechanism 2, a safety collision avoidance mechanism 3, a horizontal sliding mechanism 4, a vertical sliding mechanism 5, a first sliding frame 6, a first roller 7, a first spring reset mechanism 8, a connecting pin 9, a first limit column 10, a first compression spring 11, a second sliding frame 12, a second roller 13, a second spring reset mechanism 14, a second compression spring 15, a second limit column 16, a depositing gear 3-1, a depositing gear frame 3-2, a third spring reset mechanism 3-3, a cylinder ejection mechanism 3-4, a hemispherical groove 3-5, an elastic pin 3-6, a third reset spring 3-7, a third limit column 3-8, a bearing bracket 3-9, a follow-up wheel 3-10, a wiring track A and a driving chain mechanism B.

Detailed Description

In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

Fig. 1-8 show an overall structural schematic according to an embodiment of the present invention.

The invention comprises the following steps: the on-line clamp mechanism of the invention is connected on two groups of assembly line tracks A of the suspension seat U-shaped general assembly line in a sliding way, the on-line clamp mechanism slides on the two groups of assembly line tracks A through a driving chain mechanism B, and the on-line clamp mechanism comprises: the online clamp comprises an online clamp frame body 1, two groups of sliding support mechanisms 2 connected to two groups of assembly line tracks A in a sliding mode, and a safety anti-collision mechanism 3 movably connected with a driving chain mechanism B and used for preventing the online clamp mechanism from colliding operators; the two sliding support mechanisms 2 are arranged on the on-line clamp frame body 1 at positions corresponding to the assembly line track A, and the safety anti-collision mechanism 3 is arranged on the on-line clamp frame body 1 between the two groups of sliding support mechanisms 2 and corresponds to the driving chain mechanism B;

the slide support mechanism 2 includes: horizontal direction slide mechanism 4 and two vertical direction slide mechanism 5, horizontal direction slide mechanism 4 drive anchor clamps mechanism on the line and slide on assembly line track A's top surface, and two vertical direction slide mechanism 5 drive anchor clamps mechanism on the line and slide on assembly line track A's two sides.

Referring to fig. 1, 2, 6, and 7, the horizontal sliding mechanism 4 of the present invention includes: the device comprises a first sliding frame 6, a group of five first rollers 7 which are arranged on the first sliding frame 6 and roll along the horizontal direction, and two first spring return mechanisms 8 which are supported on two sides of the first sliding frame 6; the first roller 7 moves on the top surface of the assembly line track A, the first sliding frame 6 is connected with the on-line fixture frame body 1 through a vertically arranged connecting pin 9, nuts are arranged at two ends of the connecting pin 9, the connecting pin on the first sliding frame 6 passes through a hole and is in interference fit with the connecting pin 9, one end of the connecting pin 9 passes through the connecting pin and passes through the hole to be connected through the nut, the other end of the connecting pin 9 passes through the top surface of the first sliding frame 6 to be connected through the nut, the first sliding frame 6 can rotate on the connecting pin 9 slightly, the first sliding frame 6 can rotate slightly relative to the assembly line frame body 1 indirectly, and the purpose is that the on-line fixture mechanism has a certain moving space on turning and linear tracks to prevent rapid abrasion; first spring return 8 is used for driving first carriage 6 and reseing after first carriage 6 micro-rotation, and first spring return 8 includes: the device comprises a first compression spring 11 and a first limiting column 10, wherein a top cap is arranged at one end of the first limiting column 10, which is in contact with a first sliding frame 6, the other end of the first limiting column 10 penetrates through an on-line clamp frame body 1 and is fixed through a nut, the installation position of the first limiting column 10 on the on-line clamp frame body 1 corresponds to the position of the first sliding frame 6, one end of the first compression spring 11 is supported on the top cap, and the other end of the first compression spring 11 is supported on the on-line clamp frame body 1;

referring to fig. 1, 2, 6, and 7, the vertical sliding mechanism 5 includes: second carriage 12, a set of second rollers 13 rolling along the vertical direction mounted on second carriage 12, second spring return 14 connecting second carriage 12 with on-line fixture frame 1, second spring return 14 including: two second compression springs 15 and two second spacing posts 16, two second spacing posts 16 link firmly respectively at the both ends of second carriage 12, the one end that second carriage 12 was kept away from to the spacing post 16 of second passes on-line anchor clamps support body 1 and links firmly through the nut, the mounted position of the spacing post 16 on-line anchor clamps support body 1 of second corresponds with the position of second carriage 12, the one end top of second compression spring 15 is held on second carriage 12, the other end top of second compression spring 15 is held on-line anchor clamps support body 1, second roller 13 slides on assembly line orbital side.

Referring to fig. 1, 2, 6 and 7, the second carriage 12 located outside the assembly line track a of the present invention is provided with two second rollers 13, the second carriage 12 located inside the assembly line track a is provided with one second roller 13, and since an outward centrifugal force is generated when the in-line jig mechanism moves on the assembly line track a, the two second rollers 13 are provided outside the assembly line track a, and the one second roller 13 is provided inside the assembly line track a in order to minimize a frictional force between the vertical direction sliding mechanism 5 and the assembly line track a and to reduce power consumption of a driving motor for driving the chain mechanism B.

Referring to fig. 3 and 4, the safety collision avoidance mechanism 3 of the present invention includes: two groups of the depositing gears 3-1, the depositing gear rack 3-2, the third spring return mechanism 3-3 and the cylinder ejection mechanism 3-4; the consignment gear 3-1 is rotatably connected to a consignment gear rack 3-2 along the horizontal direction, the consignment gear 3-1 is meshed with a driving chain mechanism B, the consignment gear 3-1 drives an on-line clamp mechanism to move on the driving chain mechanism B through the consignment gear rack 3-2, the consignment gear rack 3-2 is fixedly connected to the on-line clamp mechanism through a third spring resetting mechanism 3-3, twelve hemispherical grooves 3-5 are uniformly distributed on two end faces of the consignment gear 3-1, two elastic pins 3-6 are vertically arranged on the consignment gear rack 3-2, the free ends of the elastic pins 3-6 are hemispherical, the free ends of the two elastic pins 3-6 are respectively arranged in the hemispherical grooves 3-5 corresponding to the positions of the elastic pins 3-6 in the two end faces of the consignment gear 3-1, when no external force stops the on-line clamping mechanism, the consignment gear 3-1 drives the on-line clamping mechanism to move on the driving chain mechanism B through the two elastic pins 3-6, wherein when the external force stops the on-line clamping mechanism, the free ends of the two elastic pins 3-6 are separated from the hemispherical grooves 3-5, the on-line clamping mechanism does not move along with the rotation of the consignment gear 3-1, and the consignment gear 3-1 idles along with the driving chain mechanism B. The third spring return mechanism 3-3 includes: a third reset spring 3-7 and a third limit column 3-8, wherein one end of the third limit column 3-8 is fixedly connected to the upper line clamp mechanism, the other end of the third limit column 3-8 passes through the carrier 3-2 and is fixedly connected through a bolt, the third reset spring 3-7 is sleeved on the third limit column 3-8 between the upper line clamp mechanism and the carrier 3-2, one end of the third reset spring 3-7 is supported on the upper line clamp mechanism, and the other end is supported on the carrier 3-2; a bearing mechanism is arranged below the consignment gear rack 3-2, the bearing mechanism comprises a bearing bracket 3-9 and a follow-up wheel 3-10 arranged on the bearing bracket 3-9, the upper end of the bearing bracket 3-9 is fixedly connected with the bottom of the consignment gear rack 3-2, the lower end of the bearing bracket 3-9 is provided with the follow-up wheel 3-10, the follow-up wheel 3-10 slides on a supporting plate which extends out of the wire upper clamp frame body 1 and is parallel to the ground, and the bearing bracket 3-9 is L-shaped;

the depositing gear 3-1 of the invention has two motion states:

the first state: when the deposit gear 3-1 is mounted on the drive chain mechanism B along with the drive chain mechanism B, the deposit gear 3-1 is fixed relative to the deposit gear rack 3-2 and mounted on the drive chain mechanism B by the elastic pin 3-6 in the hemispherical groove 3-5 in the direction perpendicular to the deposit gear 3-1, so that the on-line clamp mechanism moves forward together with the drive chain mechanism B. When an obstacle blocks the on-line clamp mechanism to advance, the on-line clamp mechanism does not keep synchronous motion with the driving chain mechanism B due to the fact that the on-line clamp mechanism is pushed, the depositing gear 3-1 overcomes the locking force of the elastic pin 3-6, the elastic pin 3-6 is extruded out of the hemispherical groove 3-5, then the depositing gear 3-1 rolls, and the on-line clamp mechanism keeps motion at the position of the assembly line frame body 1 until the elastic pin 3-6 enters the next hemispherical groove 3-5.

And a second state: when the movement state of the depositing gear is changed, if the on-line clamp mechanism is not subjected to resistance in the advancing direction before the elastic pin 3-6 enters the next hemispherical groove 3-5, the elastic pin 3-6 is inserted into the next hemispherical groove 3-5 again, at the moment, the depositing gear 3-1 returns to the static state again from the rolling state, and the on-line clamp mechanism is driven by the driving chain mechanism B again and continues to move forwards; if the inline clamp mechanism continues to receive a forward resistance before the spring pins 3-6 enter the next hemispherical recesses 3-5 and the forward resistance can overcome the spring pin locking force, the deposit gear 3-1 continues to roll until the inline clamp mechanism remains relatively stationary with the drive chain mechanism B, i.e., moves forward along with the drive chain mechanism B, when the locking force is greater than the forward resistance.

An air cylinder ejection mechanism 3-4 is arranged on an assembly line frame body 1 at a position corresponding to a consignment gear frame 3-2, a piston rod of the air cylinder ejection mechanism 3-4 is supported on the consignment gear frame 3-2, the piston rod drives the consignment gear frame 3-2 to move and extrudes a third return spring 3-7 of the third spring return mechanism 3-3 to contract with force, and the consignment gear frame 3-2 drives the consignment gear 3-1 to be separated from a driving chain mechanism B.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.