阅读说明：本技术 汽车后保险杠料架 (Automobile rear bumper material rack ) 是由 张晓春 张伟松 于 2019-12-09 设计创作，主要内容包括：本发明公开了一种汽车后保险杠料架,包括料架本体、设置于所述料架本体上且用于对后保险杠进行定位的第一定位装置和第二定位装置、用于在竖直方向上对放置在第一定位装置上的所有后保险杠同时进行限位的第一限位装置以及用于在竖直方向上对放置在第二定位装置上的后保险杠进行限位的第二限位装置,第二定位装置位于第一定位装置的上方,第一限位装置设置成可在第一限位位置与第一避让位置之间进行切换,第二限位装置设置成可在第二限位位置与第二避让位置之间进行切换。本发明的汽车后保险杠料架,通过设置定位装置与限位装置相配合,实现对后保险杠的定位与固定,使得取放料操作简单,避免多次、重复操作定位,提高生产效率,符合人性化。(The invention discloses an automobile rear bumper material rack which comprises a material rack body, a first positioning device and a second positioning device, wherein the first positioning device and the second positioning device are arranged on the material rack body and are used for positioning rear bumpers, a first limiting device used for limiting all the rear bumpers arranged on the first positioning device in the vertical direction at the same time, and a second limiting device used for limiting the rear bumpers arranged on the second positioning device in the vertical direction, the second positioning device is positioned above the first positioning device, the first limiting device is arranged to be capable of being switched between a first limiting position and a first avoiding position, and the second limiting device is arranged to be capable of being switched between a second limiting position and a second avoiding position. According to the automobile rear bumper material rack, the positioning device is matched with the limiting device, so that the rear bumper is positioned and fixed, the material taking and placing operation is simple, repeated operation and positioning are avoided, the production efficiency is improved, and the automobile rear bumper material rack is humanized.)

1. Automobile rear bumper work or material rest, including the work or material rest body, its characterized in that: still including set up in just be used for carrying out the first positioner and the second positioner who fixes a position rear bumper on the work or material rest body, be used for carrying out spacing first stop device simultaneously and be used for carrying out spacing second stop device to the rear bumper of placing on the second positioner in vertical direction to placing all rear bumpers on first positioner on the vertical direction, second stop device is located first stop device's top, first stop device sets to can dodge between the position at first stop position and the first, second stop device sets to can dodge between the position at second stop position and second and switches.

2. The automobile rear bumper stack according to claim 1, wherein: the first positioning device comprises a lower positioning block and a lower supporting block, the lower positioning block is provided with a first lower positioning groove, a second lower positioning groove and a third lower positioning groove, the first lower positioning groove, the second lower positioning groove and the third lower positioning groove are used for enabling a rear bumper to be embedded, and the first lower positioning groove, the second lower positioning groove and the third lower positioning groove are sequentially arranged along the length direction of the lower positioning block.

3. The automobile rear bumper stack according to claim 2, wherein: the lower positioning blocks and the lower supporting blocks are all provided with a plurality of rows, the lower positioning blocks and the lower supporting blocks are arranged in two rows, the lower positioning blocks and the lower supporting blocks in the same row are arranged along the length direction of the material rack body in sequence, the lower supporting blocks are located below the lower positioning blocks, and the length direction of the lower supporting blocks is parallel to the width direction of the material rack body.

4. The automobile rear bumper stack according to claim 3, wherein: the two rows of lower positioning blocks are symmetrically arranged, the two rows of lower supporting blocks are symmetrically arranged, and the two rows of lower positioning blocks are positioned between the two rows of lower supporting blocks.

5. The automobile rear bumper stack according to any one of claims 1 to 4, characterized in that: the first limiting device comprises a first guide plate arranged on the material rack body, a first turnover rod rotatably arranged on the material rack body, a first linkage rod connected with the first turnover rod, a first sliding rod connected with the first linkage rod, a first stop rod connected with the first sliding rod in a rotating mode, and a first lower limiting part connected with the first turnover rod and used for placing a rear bumper on the first positioning device in the vertical direction, wherein the first lower limiting part is provided with a plurality of first lower limiting parts and all the first lower limiting parts are sequentially arranged along the length direction of the first turnover rod, the first guide plate is provided with a first guide groove for embedding the first sliding rod, and the axis of the first guide groove is an arc-shaped groove and is parallel to the length direction of the material rack body and the first turnover rod.

6. The automobile rear bumper stack according to claim 5, wherein: the first lower limiting part comprises a first lower limiting rod connected with the first turnover rod and a second lower limiting rod connected with the first lower limiting rod, the second lower limiting rod is provided with a plurality of and all second lower limiting rods which are sequentially arranged along the length direction of the first lower limiting rod, and the length direction of the first lower limiting rod is perpendicular to the length direction of the first turnover rod.

7. The rack of any one of claims 2 to 6, wherein: the second positioning device comprises an upper positioning block and an upper supporting block, the upper positioning block is provided with a first upper positioning groove, a second upper positioning groove and a third upper positioning groove, the first upper positioning groove, the second upper positioning groove and the third upper positioning groove are used for enabling the rear bumper to be embedded into, the first upper positioning groove, the second upper positioning groove and the third upper positioning groove are sequentially arranged along the length direction of the upper positioning block, and the height of the upper positioning block and the height of the upper supporting block are larger than that of the lower positioning block.

8. The stack of claim 7, wherein: the material rack comprises a rack body, wherein two upper positioning blocks and two upper supporting blocks are arranged on the rack body, the two upper positioning blocks and the two upper supporting blocks are positioned on the same straight line parallel to the width direction of the rack body, the upper supporting blocks are positioned below the upper positioning blocks, and the length direction of the upper supporting blocks is parallel to the width direction of the rack body.

9. The rack of any one of claims 1 to 8, wherein: the second limiting device comprises a second guide plate arranged on the material rack body, a second turnover rod rotatably arranged on the material rack body, a second linkage rod connected with the second turnover rod, a second sliding rod connected with the second linkage rod, a second stop rod connected with the second sliding rod in a rotating mode, and a first upper limiting piece connected with the second turnover rod and used for limiting the vertical direction of a rear bumper placed on the second positioning device, the second guide plate is provided with a second guide groove for embedding the second sliding rod, and the axis of the second guide groove is arc-shaped and parallel to the length direction of the material rack body and the second turnover rod.

10. The stack of claim 9, wherein: the first upper limiting piece comprises a first upper limiting rod connected with the second turnover rod and a second upper limiting rod connected with the first upper limiting rod, the second upper limiting rod is provided with a plurality of upper limiting rods, all the upper limiting rods are sequentially arranged along the length direction of the first upper limiting rod, and the length direction of the first upper limiting rod is perpendicular to the length direction of the second turnover rod.

Technical Field

The invention belongs to the technical field of transportation auxiliary devices, and particularly relates to an automobile rear bumper material rack.

Background

When the present work or material rest that adopts transports automobile rear bumper, the location form of rear bumper on the work or material rest all is independent individual, and every rear bumper all needs the independent location, and this kind of work or material rest mainly has following several defects:

1. the positioning structure is independent, a material rack needs to be operated in the material taking and placing process, and the operation needs to be repeated for multiple times, so that the production efficiency is reduced;

2. the material cost and the manufacturing cost of the independent positioning structure are high, the requirement on the manufacturing precision is also high, and the overall cost of the material rack is increased.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an automobile rear bumper material rack, and aims to improve the material taking and placing work efficiency.

In order to achieve the purpose, the invention adopts the technical scheme that: automobile rear bumper work or material rest, including the work or material rest body, set up in on the work or material rest body and be used for carrying out the first positioner and the second positioner of location to rear bumper, be used for carrying out spacing first stop device simultaneously and be used for carrying out spacing second stop device to the rear bumper of placing on the second positioner in vertical direction to placing on the first stop device of placing on the vertical direction, second stop device is located first stop device's top, first stop device sets up to switch between first stop position and the first position of dodging, second stop device sets up to switch between the second stop position and the second position of dodging.

The first positioning device comprises a lower positioning block and a lower supporting block, the lower positioning block is provided with a first lower positioning groove, a second lower positioning groove and a third lower positioning groove, the first lower positioning groove, the second lower positioning groove and the third lower positioning groove are used for enabling a rear bumper to be embedded, and the first lower positioning groove, the second lower positioning groove and the third lower positioning groove are sequentially arranged along the length direction of the lower positioning block.

The lower positioning blocks and the lower supporting blocks are all provided with a plurality of rows, the lower positioning blocks and the lower supporting blocks are arranged in two rows, the lower positioning blocks and the lower supporting blocks in the same row are arranged along the length direction of the material rack body in sequence, the lower supporting blocks are located below the lower positioning blocks, and the length direction of the lower supporting blocks is parallel to the width direction of the material rack body.

The two rows of lower positioning blocks are symmetrically arranged, the two rows of lower supporting blocks are symmetrically arranged, and the two rows of lower positioning blocks are positioned between the two rows of lower supporting blocks.

The first limiting device comprises a first guide plate arranged on the material rack body, a first turnover rod rotatably arranged on the material rack body, a first linkage rod connected with the first turnover rod, a first sliding rod connected with the first linkage rod, a first stop rod connected with the first sliding rod in a rotating mode, and a first lower limiting part connected with the first turnover rod and used for placing a rear bumper on the first positioning device in the vertical direction, wherein the first lower limiting part is provided with a plurality of first lower limiting parts and all the first lower limiting parts are sequentially arranged along the length direction of the first turnover rod, the first guide plate is provided with a first guide groove for embedding the first sliding rod, and the axis of the first guide groove is an arc-shaped groove and is parallel to the length direction of the material rack body and the first turnover rod.

The first lower limiting part comprises a first lower limiting rod connected with the first turnover rod and a second lower limiting rod connected with the first lower limiting rod, the second lower limiting rod is provided with a plurality of and all second lower limiting rods which are sequentially arranged along the length direction of the first lower limiting rod, and the length direction of the first lower limiting rod is perpendicular to the length direction of the first turnover rod.

The second positioning device comprises an upper positioning block and an upper supporting block, the upper positioning block is provided with a first upper positioning groove, a second upper positioning groove and a third upper positioning groove, the first upper positioning groove, the second upper positioning groove and the third upper positioning groove are used for enabling the rear bumper to be embedded into, the first upper positioning groove, the second upper positioning groove and the third upper positioning groove are sequentially arranged along the length direction of the upper positioning block, and the height of the upper positioning block and the height of the upper supporting block are larger than that of the lower positioning block.

The material rack comprises a rack body, wherein two upper positioning blocks and two upper supporting blocks are arranged on the rack body, the two upper positioning blocks and the two upper supporting blocks are positioned on the same straight line parallel to the width direction of the rack body, the upper supporting blocks are positioned below the upper positioning blocks, and the length direction of the upper supporting blocks is parallel to the width direction of the rack body.

The second limiting device comprises a second guide plate arranged on the material rack body, a second turnover rod rotatably arranged on the material rack body, a second linkage rod connected with the second turnover rod, a second sliding rod connected with the second linkage rod, a second stop rod connected with the second sliding rod in a rotating mode, and a first upper limiting piece connected with the second turnover rod and used for limiting the vertical direction of a rear bumper placed on the second positioning device, the second guide plate is provided with a second guide groove for embedding the second sliding rod, and the axis of the second guide groove is arc-shaped and parallel to the length direction of the material rack body and the second turnover rod.

The first upper limiting piece comprises a first upper limiting rod connected with the second turnover rod and a second upper limiting rod connected with the first upper limiting rod, the second upper limiting rod is provided with a plurality of upper limiting rods, all the upper limiting rods are sequentially arranged along the length direction of the first upper limiting rod, and the length direction of the first upper limiting rod is perpendicular to the length direction of the second turnover rod.

According to the automobile rear bumper material rack, the positioning device is matched with the limiting device, so that the rear bumper is positioned and fixed, the material taking and placing operation is simple, repeated operation and positioning are avoided, the production efficiency is improved, and the automobile rear bumper material rack is humanized.

Drawings

The description includes the following figures, the contents shown are respectively:

FIG. 1 is a schematic structural view of an automotive rear bumper stack according to the present invention;

FIG. 2 is a schematic view of another angle of the rear bumper stack of the present invention;

FIG. 3 is a schematic structural view of a lower positioning block;

FIG. 4 is a schematic structural view of a first stop device;

FIG. 5 is a schematic structural view of an upper positioning block;

FIG. 6 is a schematic structural view of a second stop device;

labeled as: 1. a rear baffle frame; 2. a side baffle frame; 3. a bottom bracket; 4. a middle baffle frame; 5. a lower positioning block; 501. a first lower positioning groove; 502. a second lower positioning groove; 503. a third lower positioning groove; 6. a lower supporting block; 7. an upper positioning block; 701. a first upper positioning slot; 702. a second upper positioning groove; 703. a third upper positioning groove; 8. an upper supporting block; 9. a first turning bar; 10. a first linkage rod; 11. a first slide bar; 12. a first bar; 13. a first lower limit rod; 14. a second lower limit lever; 15. a first guide plate; 16. a first guide groove; 17. a second turning bar; 18. a second linkage rod; 19. a second slide bar; 20. a second bar; 21. a first upper limit lever; 22. a second upper limit lever; 23. a second guide plate; 24. a second guide groove; 25. an outer baffle; 26. an upper support frame; 27. a lower support frame; 28. a lower limiting plate; 29. and an upper limiting plate.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.

As shown in fig. 1 to 6, the invention provides an automobile rear bumper rack, which comprises a rack body, a first positioning device and a second positioning device which are arranged on the rack body and used for positioning rear bumpers, a first limiting device used for limiting all the rear bumpers placed on the first positioning device in the vertical direction at the same time, and a second limiting device used for limiting the rear bumpers placed on the second positioning device in the vertical direction, wherein the second positioning device is positioned above the first positioning device, the first limiting device is arranged to be capable of being switched between a first limiting position and a first avoiding position, and the second limiting device is arranged to be capable of being switched between a second limiting position and a second avoiding position.

Specifically, as shown in fig. 1 and 2, the rack body is an open structure, the rack body mainly includes a bottom bracket 3, two side baffle frames 2 and two middle baffle frames 4 vertically arranged on the bottom bracket 3, and a rear baffle frame 1 located between the two side baffle frames 2 and fixedly connected with the two side baffle frames 2, the rear baffle frame 1, the side baffle frames 2 and the middle baffle frames 4 are located above the bottom bracket 3, the rear baffle frame 1 is parallel to the bottom bracket 3, the bottom bracket 3 is a rectangular structure, the bottom bracket 3 is horizontally arranged, the length direction of the bottom bracket 3 is parallel to a first direction, the width direction of the bottom bracket 3 is parallel to a second direction, the first direction and the second direction are both horizontal directions, the first direction and the second direction are perpendicular, the length direction of the rear baffle frame 1 is parallel to the second direction, the length directions of the side baffle frames 2 and the middle baffle frames 4 are parallel to the first direction, the two middle baffle frames 4 are located at the middle position of the two side baffle frames 2, well keep off frame 4 and side and keep off frame 2 and be in the collinear with the second direction looks parallel, keep off frame 4 and two side in two and keep off frame 2 and be symmetrical arrangement, each side keeps off the frame 2 respectively with keep off between the frame 4 with nearest well forming the holding chamber that holds the tip of rear bumper, the holding chamber sets up two, each one person about this kind of region during the operation. Two side fender frames 2 set up in the ascending both ends of width direction of end bracket 3, side fender frame 2 has certain length and height, the length direction and the first direction of side fender frame 2 parallel, keep off the one end fixed connection on the length direction of frame 1 and two side fender frames 2 after and keep off the one end fixed connection on the length direction of frame 1 and two in the frame 4, keep off the same one side that frame 1 is located after to two side fender frames 2 and two, form the opening between the other end on the length direction of two side fender frames 2, also form the opening that is used for getting the blowing between the top of two side fender frames 2.

As shown in fig. 1 to 3, the first positioning device includes a lower positioning block 5 and a lower supporting block 6, which are disposed on the rack body, the lower positioning block 5 has a first lower positioning groove 501, a second lower positioning groove 502 and a third lower positioning groove 503, which are used for embedding the rear bumper, and the first lower positioning groove 501, the second lower positioning groove 502 and the third lower positioning groove 503 are sequentially arranged along the length direction of the lower positioning block 5. Rear bumper is U type structure, when putting rear bumper, is the downward state of opening with rear bumper and places on first positioner, provides support and positioning action to rear bumper by lower locating piece 5 and lower tray 6, makes rear bumper keep the horizontality, and the length direction of rear bumper parallels with the second direction this moment, then operates first stop device, is fixed all rear bumper simultaneously on first positioner by first stop device. A plurality of rear bumpers can be placed on the first positioning device at the same time, and all the rear bumpers placed on the first positioning device are sequentially arranged along the first direction. The fixed setting of lower locating piece 5 is on the top surface of well fender frame 4, the length direction that lower locating piece 5 has certain length and lower locating piece 5 parallels with the first direction, set up a first constant head tank 501 down on the lower locating piece 5 respectively, constant head tank 502 and a constant head tank 503 under second under a second, shape phase-match with the rear bumper, the first constant head tank 501 of locating piece 5 under the rear bumper imbeds simultaneously, constant head tank 502 and constant head tank 503 under second under constant head tank 502 and the third, can make the rear bumper keep fixed on the first direction, the backing block 6 under the cooperation simultaneously, realize the accurate location of rear bumper. Lower tray 6 provides the supporting role to rear bumper, and lower tray 6 is used for playing limiting displacement to rear bumper on the second direction, and the length direction of lower tray 6 parallels with the width direction of work or material rest body, also the length direction of tray 6 parallels with the second direction down, and the one end and the well fender frame 4 fixed connection of lower tray 6, the other end of lower tray 6 are arranged in the holding chamber, and lower tray 6 stretches out along the outside that keeps off frame 4 in the horizontal direction orientation.

As shown in fig. 1 to 3, in this embodiment, the lower positioning blocks 5 and the lower supporting blocks 6 are all provided in plurality, the lower positioning blocks 5 and the lower supporting blocks 6 are the same in number, because the rear bumper has a certain length, all the lower positioning blocks 5 and all the lower supporting blocks 6 are arranged in two rows, and the lower positioning blocks 5 and the lower supporting blocks 6 in the same row are all sequentially arranged along the length direction of the rack body, the lower supporting blocks 6 are located below the lower positioning blocks 5, the lower positioning blocks 5 extend out towards the upper side of the middle blocking frame 4, the two rows of lower positioning blocks 5 and the lower supporting blocks 6 jointly provide supporting and positioning effects for the rear bumper, the stability of the rear bumper is improved, and two ends of the rear bumper in the length direction are respectively embedded into two accommodating cavities. Each middle blocking frame 4 is provided with a row of lower positioning blocks 5 and a row of lower supporting blocks 6, two middle blocking frames 4 are positioned between the two rows of lower supporting blocks 6, all the lower positioning blocks 5 arranged on the middle blocking frames 4 are sequentially arranged along the length direction of the middle blocking frames 4 and are distributed at equal intervals, all the lower supporting blocks 6 arranged on the middle blocking frames 4 are sequentially arranged along the length direction of the middle blocking frames 4 and are distributed at equal intervals, the two rows of lower positioning blocks 5 are symmetrically arranged, the two rows of lower supporting blocks 6 are also symmetrically arranged, the two rows of lower positioning blocks 5 are positioned between the two rows of lower supporting blocks 6, the lower supporting blocks 6 are aligned with the positions of the third lower positioning grooves 503, and each lower supporting block 6 is respectively positioned on the same straight line parallel to the second direction with one third lower positioning groove 503. The first lower positioning groove 501, the second lower positioning groove 502 and the third lower positioning groove 503 are grooves formed by being recessed from the top surface of the lower positioning block 5 toward the inside of the lower positioning block 5 along the vertical direction, the distance between the first lower positioning groove 501 and the second lower positioning groove 502 is smaller than the distance between the third lower positioning groove 503 and the second lower positioning groove 502, and the height of the third lower positioning groove 503 is smaller than the heights of the first lower positioning groove 501 and the second lower positioning groove 502.

In the present embodiment, as shown in fig. 1 to 3, five lower positioning blocks 5 and five lower supporting blocks 6 are disposed on each middle stop frame 4.

As shown in fig. 1, fig. 2 and fig. 4, the first limiting device comprises a first guide plate 15 arranged on the rack body, a first turning rod 9 rotatably arranged on the rack body, the first linkage rod 10 is connected with the first turnover rod 9, the first sliding rod 11 is connected with the first linkage rod 10, the first stop lever 12 is rotatably connected with the first sliding rod 11, the first stop lever is connected with the first turnover rod 9, and the first stop lever is used for limiting a rear bumper placed on the first positioning device in the vertical direction, the first stop lever is provided with a plurality of first stop parts, all the first stop parts are sequentially arranged along the length direction of the first turnover rod 9, the first guide plate 15 is provided with a first guide groove 16 in which the first sliding rod 11 is embedded, and the first guide groove 16 is an arc-shaped groove, and the axis of the first guide groove 16 is parallel to the length directions of the material rack body and the first turnover rod 9. The first guide plate 15 is fixedly arranged on the rear baffle frame 1, and the first guide plate 15 is vertically arranged. The first turnover rod 9 is rotatably arranged on the bottom bracket 3, the first turnover rod 9 is a cylinder, the rotation center line of the first turnover rod 9 is also the axis of the first turnover rod, the axis of the first turnover rod 9 is parallel to the first direction, and the first turnover rod 9 is positioned between the middle blocking frame 4 and the side blocking frame 2. The first linkage rod 10 has a certain length, the length direction of the first linkage rod 10 is perpendicular to the first direction, one end of the first linkage rod 10 in the length direction is fixedly connected with one end of the first turnover rod 9 in the length direction, the first sliding rod 11 is fixedly connected with the other end of the first linkage rod 10 in the length direction, the first sliding rod 11 is a cylinder, and the axis of the first sliding rod 11 is parallel to the first direction. The first guide groove 16 is a groove formed in the first guide plate 15 in a penetrating mode in the plate thickness direction, the axis of the first guide groove 16 and the axis of the first turnover rod 9 are the same straight line, the first guide groove 16 has a certain radian, the radian of the first guide groove 16 is smaller than 180 degrees, and the middle point of the first guide groove 16 in the arc length direction and the axis of the first turnover rod 9 are located in the same vertical plane parallel to the first direction. The height of the first sliding rod 11 is greater than that of the first turning rod 9, the first stop rod 12 and the first linkage rod 10 are respectively located on two opposite sides of the first guide plate 15, the first stop rod 12 is rotatably connected with the first sliding rod 11, a rotation center line of the first stop rod 12 is parallel to the second direction, the first stop rod 12 can rotate up and down, the first stop rod 12 is used for being held by an operator, the first stop rod 12 is used for receiving a rotation force applied by the operator, the operator drives the first stop rod 12 to drive the first sliding rod 11 to slide in the first guide groove 16 by pulling the first stop rod 12, the first sliding rod 11 drives the first turning rod 9 to rotate through the first linkage rod 10, the first turning rod 9 drives the first lower limiting part to synchronously rotate, the first lower limiting part is switched between the first limiting position and the first avoiding position, and contact and separation with the rear bumper are achieved.

As shown in fig. 1, 2 and 4, the first avoidance position is located below the first limit position, the first lower limit member includes a first lower limit rod 13 connected to the first turning rod 9 and a second lower limit rod 14 connected to the first lower limit rod 13, the second lower limit rods 14 are provided in plurality, all the second lower limit rods 14 are arranged in sequence along the length direction of the first lower limit rod 13 and are distributed at equal intervals, the length direction of the first lower limit rod 13 is perpendicular to the length direction of the first turning rod 9, an included angle is formed between the length direction of the first lower limit rod 13 and the length direction of the first linkage rod 10, and the included angle is an acute angle. The first lower limiting part at the first limiting position is used for applying downward pressing force to the rear bumper at the end position of the rear bumper to fix the rear bumper, the end of the rear bumper is inserted into the accommodating cavity, the second lower limiting rod 14 is transversely arranged above the first turnover rod 9 at the moment, the second lower limiting rod 14 is in contact with the rear bumper, the first lower limiting rod 13 extends out towards the upper part of the first turnover rod 9, the first stop lever 12 is at the locking position, the first sliding rod 11 cannot slide in the first guide groove 16, and the first lower limiting part can be kept at the first limiting position. The lower limiting plate 28 used for keeping the first stop lever 12 at the locking position is arranged on the first guide plate 15, when the first stop lever 12 is at the locking position, the first stop lever 12 is in a vertical state, the first stop lever 12 extends out towards the lower part of the first sliding rod 11, the first sliding rod 11 is located at one end of the first guide groove 16, at the moment, the first sliding rod 11 is located at the position with the lowest height, and the lower limiting plate 28 is in contact with the first stop lever 12 to prevent the first stop lever 12 from moving upwards, so that the fixing reliability of the rear bumper is improved. When the rear bumper needs to be taken out, the first lower limiting part needs to be switched to a first avoidance position from the first limiting position, so that the first stop lever 12 is firstly rotated upwards to separate the first stop lever 12 from the lower limiting plate 28, then the first sliding lever 11 is pushed upwards to slide the first sliding lever 11 along the first guide groove 16, the first sliding lever 11 drives the first turnover rod 9 to rotate through the first linkage rod 10, the first turnover rod 9 drives the first lower limiting part to synchronously rotate, the first lower limiting part is switched to the first avoidance position from the first limiting position, the first lower limiting part is separated from the rear bumper, the unlocking of all the rear bumpers is realized, and finally the material can be taken.

As shown in fig. 1, 2 and 4, in the present embodiment, a total of five first lower limiting members are provided, and two second lower limiting rods 14 are provided on the first lower limiting rod 13. The first limiting devices are arranged in two and the two first limiting devices are symmetrically arranged, the two middle blocking frames 4 are located between the two first limiting devices, and the two first limiting devices are respectively used for applying pressing force to the rear bumper at two ends of the rear bumper to enable the rear bumper to keep fixed in the vertical direction.

The first limiting device with the structure is simple and compact in structure, convenient to operate and capable of achieving reliable clamping and fixing of the rear bumper, and the arrangement on the material rack body is convenient under the occupied space, so that the production efficiency is improved, and the production cost can be reduced.

As shown in fig. 1, 2 and 5, the second positioning device includes an upper positioning block 7 and an upper supporting block 8, which are disposed on the rack body, the upper positioning block 7 has a first upper positioning groove 701, a second upper positioning groove 702 and a third upper positioning groove 703 for embedding the rear bumper, the first upper positioning groove 701, the second upper positioning groove 702 and the third upper positioning groove 703 are sequentially arranged along the length direction of the upper positioning block 7, and the heights of the upper positioning block 7 and the upper supporting block 8 are greater than the height of the lower positioning block 5. Go up locating piece 7 and last tray 8 and all set up two, go up locating piece 7 and two and go up tray 8 and all be in the collinear with the width direction of work or material rest body parallels, go up tray 8 and be located the below of locating piece 7, the length direction of going up tray 8 parallels with the width direction of work or material rest body. The material rack body further comprises an upper support frame 26 arranged on the rear blocking frame 1, the upper positioning block 7 is fixedly arranged on the upper support frame 26, the upper support frame 26 is two, the two upper support frames 26 are located on the same direction parallel to the second direction, the length direction of the upper support frame 26 is parallel to the first direction, each upper support frame 26 is located above one middle blocking frame 4, the length of each upper support frame 26 is smaller than that of the middle blocking frame 4, and each upper support frame 26 is provided with one upper positioning block 7 and one upper supporting block 8. Only can place a rear bumper on the second positioner, when putting rear bumper, be the downward state of opening with rear bumper and place on second positioner, provide support and positioning action to rear bumper by two last locating piece 7 and two pop-up blocks 8, make rear bumper keep the horizontality, the length direction and the second direction of rear bumper parallel this moment, then operate second stop device, fix rear bumper on second positioner by second stop device. Go up fixed the setting of locating piece 7 on the top surface of last support frame 26, go up the length direction that locating piece 7 has certain length and goes up locating piece 7 and parallel with the first direction, go up and set up a first constant head tank 701 on locating piece 7 respectively, constant head tank 702 and a constant head tank 703 on the third on the second, shape phase-match with the rear bumper, the rear bumper imbeds the first constant head tank 701 of going up of locating piece 7 simultaneously, constant head tank 702 and the constant head tank 703 on the third on the second, can make the rear bumper keep fixed in the first direction, cooperate the saddle 8 simultaneously, realize the accurate location of rear bumper. The upper supporting block 8 provides the supporting role to the rear bumper, the upper supporting block 8 is used for playing a limiting role to the rear bumper in the second direction, the length direction of the upper supporting block 8 is parallel to the width direction of the rack body, the length direction of the upper supporting block 8 is also parallel to the second direction, one end of the upper supporting block 8 is fixedly connected with the upper supporting frame 26, the other end of the upper supporting block 8 is located on the outer side of the upper supporting frame 26, and the upper supporting block 8 stretches out towards the outer side of the upper supporting frame 26 along the horizontal direction.

As shown in fig. 1, 2 and 5, the height of the upper positioning block 7 is greater than that of the lower positioning block 5, the two upper positioning blocks 7 are symmetrically arranged, the two upper supporting blocks 8 are also symmetrically arranged, the two upper positioning blocks 7 are located between the two upper supporting blocks 8, the upper supporting blocks 8 are aligned with the third upper positioning grooves 703, and each upper supporting block 8 and one third upper positioning groove 703 are located on the same straight line parallel to the second direction. The first upper positioning groove 701, the second upper positioning groove 702 and the third upper positioning groove 703 are grooves formed by being recessed from the top surface of the upper positioning block 7 toward the inside of the upper positioning block 7 along the vertical direction, the distance between the first upper positioning groove 701 and the second upper positioning groove 702 is smaller than the distance between the third upper positioning groove 703 and the second upper positioning groove 702, and the height of the third upper positioning groove 703 is smaller than the heights of the first upper positioning groove 701 and the second upper positioning groove 702.

As shown in fig. 1, 2 and 6, the second limiting device includes a second guide plate 23 disposed on the rack body, a second turnover rod 17 rotatably disposed on the rack body, a second linkage rod 18 connected to the second turnover rod 17, a second sliding rod 19 connected to the second linkage rod 18, a second stop rod 20 rotatably connected to the second sliding rod 19, and a first upper limiting member connected to the second turnover rod 17 and used for limiting a rear bumper placed on the second positioning device in a vertical direction, the second guide plate 23 has a second guide groove 24 into which the second sliding rod 19 is inserted, the second guide groove 24 is an arc-shaped groove, and an axis of the second guide groove 24 is parallel to a length direction of the rack body and the second turnover rod 17. The second guide plate 23 is fixedly arranged on the rear baffle frame 1, the second guide plate 23 is vertically arranged, and the second guide plate 23 is arranged above the first guide plate 15. The second turnover rod 17 is rotatably arranged on the lower support frame 27, the lower support frame 27 is fixedly connected with the middle baffle frame 4, the lower support frame 27 is arranged between the middle baffle frame 4 and the side baffle frame 2, the second turnover rod 17 is a cylinder, the rotation center line of the second turnover rod 17 is also the axis of the second turnover rod 17, the axis of the second turnover rod 17 is parallel to the first direction, and the second turnover rod 17 is arranged between the middle baffle frame 4 and the side baffle frame 2. The second linkage rod 18 has a certain length, the length direction of the second linkage rod 18 is perpendicular to the first direction, one end of the second linkage rod 18 in the length direction is fixedly connected with one end of the second turnover rod 17 in the length direction, the second sliding rod 19 is fixedly connected with the other end of the second linkage rod 18 in the length direction, the second sliding rod 19 is a cylinder, and the axis of the second sliding rod 19 is parallel to the first direction. The second guide groove 24 is a groove formed in the second guide plate 23 in a penetrating mode in the plate thickness direction, the axis of the second guide groove 24 and the axis of the second turnover rod 17 are the same straight line, the second guide groove 24 has a certain radian, the radian of the second guide groove 24 is smaller than 180 degrees, and the middle point of the second guide groove 24 in the arc length direction and the axis of the second turnover rod 17 are located in the same vertical plane parallel to the first direction. The height of the second sliding rod 19 is greater than that of the second turning rod 17, the height of the second turning rod 17 is greater than that of the first sliding rod 11, the second stop rod 20 and the second linkage rod 18 are respectively positioned at two opposite sides of the second guide plate 23, the second stop rod 20 is rotatably connected with the second sliding rod 19, the rotation center line of the second stop rod 20 is parallel to the second direction, the second stop rod 20 can rotate up and down, the second stop rod 20 is used for being held by an operator, the second stop rod 20 is used for receiving the rotating force applied by the operator, the operator drives the second stop rod 20 by pulling the second stop rod 20, the second sliding rod 19 is driven by the second stop rod 20 to slide in the second guide groove 24, the second sliding rod 19 drives the second turning rod 17 to rotate by the second linkage rod 18, the second lower limiting piece is driven by the second turning rod 17 to synchronously rotate, so that the second lower limiting piece is switched between the second limiting position and the second avoiding position, contact and separation with the rear bumper are achieved.

As shown in fig. 1, 2 and 5, the second avoidance position is located below the second limit position, the first upper limit member includes a first upper limit rod 21 connected to the second flipping rod 17 and a second upper limit rod 22 connected to the first upper limit rod 21, one second upper limit rod 22 is provided, the length direction of the first upper limit rod 21 is perpendicular to the length direction of the second flipping rod 17, and an included angle is formed between the length direction of the first upper limit rod 21 and the length direction of the second linkage rod 18 and is an acute angle. The first upper limiting piece at the second limiting position is used for applying downward pressing force to the rear bumper at the end position of the rear bumper to fix the rear bumper, the end of the rear bumper is inserted into the accommodating cavity, the second upper limiting rod 22 is transversely arranged above the second turnover rod 17 at the moment, the second upper limiting rod 22 is in contact with the rear bumper, the first upper limiting rod 21 extends towards the upper part of the second turnover rod 17, the second stop rod 20 is at the locking position, the second sliding rod 19 cannot slide in the second guide groove 24, and the first upper limiting piece can be kept at the second limiting position. The second guide plate 23 is provided with an upper limiting plate 29 used for keeping the second stop 20 at a locking position, when the second stop 20 is at the locking position, the second stop 20 is in a vertical state, the second stop 20 extends out towards the lower part of the second sliding rod 19, the second sliding rod 19 is arranged at one end of the second guide groove 24, the second sliding rod 19 is arranged at the position with the lowest height at the moment, and the upper limiting plate 29 is in contact with the second stop 20 to prevent the second stop 20 from moving upwards, so that the fixing reliability of the rear bumper is improved. When the rear bumper needs to be taken out, the second upper limiting piece needs to be switched to a second avoidance position from the second limiting position, so that the second blocking rod 20 rotates upwards to separate the second blocking rod 20 from the upper limiting plate 29, then the second sliding rod 19 is pushed upwards to slide the second sliding rod 19 along the second guide groove 24, the second sliding rod 19 drives the second turnover rod 17 to rotate through the second linkage rod 18, the second turnover rod 17 drives the second upper limiting piece to rotate synchronously, the second upper limiting piece is switched to the second avoidance position from the second limiting position, the second upper limiting piece is separated from the rear bumper, unlocking of all the rear bumpers is achieved, and finally material taking can be carried out.

As shown in fig. 1, 2 and 6, in the present embodiment, two second upper restricting levers 22 are provided on the first upper restricting lever 21. The second limiting devices are provided with two second limiting devices which are symmetrically arranged, the two middle blocking frames 4 are located between the two second limiting devices, each first limiting device and one second limiting device are located in the same accommodating cavity, and the two second limiting devices are used for applying pressing force which enables the rear bumper to keep fixed in the vertical direction to the rear bumper at two ends of the rear bumper respectively.

The second limiting device with the structure is simple and compact in structure, convenient to operate and capable of achieving reliable clamping and fixing of the rear bumper, and the arrangement on the material rack body is convenient under the occupied space, so that the production efficiency is improved, and the production cost can be reduced.

The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.