CN219649088U - Supporting and positioning frame, positioning device and welding system - Google Patents

Abstract

The embodiment of the utility model provides a supporting and positioning frame, a positioning device and a welding system. The positioning device comprises a positioning frame and a positioning trolley, wherein the positioning trolley comprises a positioning support plate and wheels, the wheels are rotatably arranged on the positioning support plate, and the positioning trolley is in a moving state and a carrying state. The locating frame comprises a locating frame body, a guide part and a supporting rolling piece. The positioning frame body extends along a first direction; the guide part is arranged on one end of the positioning frame body along the first direction; the supporting rolling piece is arranged on the upper end face of the positioning frame body, the supporting rolling piece is provided with a carrying part for carrying the positioning support plate, and the carrying part forms a flat carrying surface so as to enable the wheels to be arranged in a suspending mode. Therefore, the supporting and positioning frame provided by the embodiment of the utility model has the advantages of eliminating the influence of wheel abrasion on the positioning and supporting plate and providing necessary conditions for improving the welding quality.

Description

Supporting and positioning frame, positioning device and welding system

Technical Field

The utility model relates to the technical field of processing of vehicle parts, in particular to a supporting and positioning frame, a positioning device with the supporting and positioning frame and a welding system.

Background

The floor assembly welding operation adopts the robot that welding quality and efficiency are higher to operate more, but the robot welding is high to floor assembly location requirement, because the robot can walk the position automatically through the procedure that sets up and strike the point, if floor assembly's location slightly deviates will lead to striking the rifle or strike the inaccurate problem in position.

In the related art, the positioning trolley is used for carrying the floor assembly, the positioning trolley is generally constructed by a simple steel beam, and when the positioning trolley is used, the actions such as drawing and transporting are required to be repeated, wheels are inevitably worn, the positioning of the positioning trolley to the Z-direction (height direction) reference of the floor assembly can be affected when the riveting island performs welding operation on the floor assembly, and then the operation quality of the floor assembly is affected. There is thus a need for a Z-reference retention device for a positioning cart.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. To this end, an embodiment of the present utility model proposes a supporting and positioning frame. The locating rack has the advantages of eliminating the influence of wheel abrasion on the locating support plate and providing necessary conditions for improving welding quality.

The embodiment of the utility model also provides a positioning device of the vehicle floor assembly.

Embodiments of the present utility model also provide a welding system for a vehicle floor assembly.

The positioning frame comprises a positioning support plate and wheels, and the positioning frame comprises a positioning frame body, a guide part and a supporting rolling piece. The positioning frame body extends along a first direction; the guide part is arranged on one end of the positioning frame body along the first direction; the supporting rolling piece is arranged on the upper end face of the positioning frame body, the supporting rolling piece is provided with the carrying part for carrying the positioning support plate, and the carrying part forms a flat carrying surface.

According to the supporting and positioning frame, the positioning trolley is mounted on the positioning frame, so that a mounting part in the first direction is provided for the positioning trolley. When the positioning trolley is carried on the supporting rolling piece, the wheels are suspended in the air relative to the positioning frame and are arranged on the positioning supporting plate, and the carrying part provides support for the positioning supporting plate, so that the influence of abrasion of part of wheels on the positioning supporting plate in the height direction caused by repeated drawing and conveying of the positioning trolley is eliminated, and the problem that the positioning supporting plate is inclined is avoided. Thereby being beneficial to improving the welding quality of the robot to the floor assembly. Therefore, the supporting and positioning frame provided by the embodiment of the utility model has the advantages of eliminating the problem of failure of the height direction reference caused by wheel abrasion, providing positioning in the height direction for welding of the floor assembly, and being beneficial to improving the welding quality of the robot. In addition, through the cooperation of locating rack 1 and positioning dolly 2 to the roughness requirement to positioning dolly 2 has been reduced. Thereby, the service life of the positioning cart 2 can be prolonged.

Therefore, the supporting and positioning frame has the advantage of eliminating the influence of wheel abrasion on the positioning and supporting plate.

In some embodiments, the supporting rolling member includes a positioning cylinder and a rolling ball, the positioning cylinder is disposed on the positioning frame, the rolling ball is rotatably disposed in the positioning cylinder, and a portion of the rolling ball is exposed outside the positioning cylinder so as to form the carrying portion and the positioning supporting plate in a rotating fit.

In some embodiments, the supporting rollers have at least two groups, at least two groups of the supporting rollers are arranged on the positioning frame body at intervals along a second direction, and each group of the supporting rollers has a plurality of supporting rollers arranged at intervals along the first direction, wherein the first direction is perpendicular to the second direction.

In some embodiments, the positioning frame further comprises a guide roller, the positioning frame body has a loading end, the loading end is arranged at one end of the positioning frame in the first direction, the guide roller is arranged at the loading end, and the height of the guide roller is lower than that of the support roller.

In some embodiments, the positioning frame further comprises a locking mechanism provided on the positioning frame body, the locking mechanism having a clamping portion capable of clamping the positioning support plate.

In some embodiments, the positioning frame further comprises a limiting block, the limiting block is arranged at one end of the length direction of the positioning frame, the limiting block is provided with a limiting convex part, and the limiting convex part can be spliced with a limiting groove of the positioning support plate.

In some embodiments, the locking mechanism includes a first locking member and a second locking member, the first locking member and the second locking member being disposed on the positioning frame body at intervals along a second direction, and the first locking member being movable toward and away from the second locking member so as to form the clamping portion, the second direction being disposed perpendicular to the first direction.

In some embodiments, the first locking member and the second locking member each include a clamping plate and a roller disposed on the clamping plate, the roller and the clamping plate are disposed at intervals in the first direction so as to form a limiting groove capable of limiting the positioning support plate, the roller is rotatably disposed on the positioning frame, and a rotation center of the roller is parallel to the second direction, and an upper end face of the roller is higher than an upper end face of the supporting roller.

In some embodiments, the positioning frame body includes a positioning base plate disposed at intervals along the first direction, and a guide support rail that is erected on a plurality of the positioning base plates, on which the support rolling member is disposed.

In some embodiments, the supporting and positioning frame further comprises at least two limiting rails, the wheel and the positioning frame are both located between the two limiting rails along the second direction, and the first direction is perpendicular to the second direction.

In some embodiments, the guide portion includes a first flap and a second flap, the first flap being disposed on one of the one ends of the guide support rails, the second flap being disposed on the other one of the one ends of the guide support rails, the first flap and the second flap being spaced apart in the second direction from a free end in a direction approaching the one end of the guide support rail (114), the height of each of the first flap and the second flap being increased from a free end in a direction approaching the one end of the guide support rail.

The positioning device of the vehicle floor assembly comprises a positioning trolley and a supporting positioning frame according to any one of the above, wherein the positioning trolley is provided with a moving state and a carrying state, the positioning trolley comprises a positioning support plate and wheels, the positioning support plate is used for carrying the vehicle floor assembly, the wheels are rotatably arranged on the positioning support plate, the positioning support plate is detachably carried on the carrying part of the positioning frame so as to be changed between the moving state and the carrying state, and the wheels are suspended relative to the positioning frame in the carrying state.

A welding system for a vehicle floor assembly according to an embodiment of the present utility model may include a welding robot and a positioning device for a vehicle floor assembly according to any of the above embodiments.

Drawings

Fig. 1 is a perspective view of a supporting and positioning frame according to an embodiment of the present utility model.

Fig. 2 is a front view of a support spacer according to an embodiment of the present utility model.

Fig. 3 is a perspective view of a spacer according to an embodiment of the present utility model.

Fig. 4 is an enlarged view of fig. 3 at a.

Fig. 5 is a top view of a spacer according to an embodiment of the present utility model.

Fig. 6 is a top view of a locking mechanism according to an embodiment of the present utility model.

Fig. 7 is a front view of a spacer according to an embodiment of the present utility model.

Fig. 8 is an enlarged view of fig. 7 at B.

Fig. 9 is a partial top view of a spacer proximate a stop end of an embodiment of the present utility model.

Reference numerals:

a positioning device 100;

a supporting and positioning frame 1;

a positioning frame 11; a loading end 111; a limit end 112; positioning the substrate 113; a guide support rail 114;

supporting the rolling member 12; a positioning cylinder 121; rolling ball 122; a locking mechanism 13; a first locking member 131; a second locking member 132; clamping plate 1321; a roller 1322; a distance sensor 133;

a stopper 14; a limit protrusion 141;

a guide roller 15;

a guide portion 16; a first folder 161; a second folding plate 162;

a positioning trolley 2; a positioning support plate 21; a limit groove 211; a wheel 22;

and a limit rail 3.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

The supporting and positioning frame 1 according to the embodiment of the present utility model is described below with reference to fig. 1 to 9.

The support positioning frame 1 of the embodiment of the utility model, the positioning trolley 2 comprises a positioning support plate 21 and wheels 22, and the positioning frame 1 comprises a positioning frame body 11, a guide part 16 and a support rolling piece 12.

The positioning frame 11 extends in a first direction (for example, the front-rear direction shown in fig. 1), the guide portion 16 is provided on one end of the positioning frame in the first direction, the supporting roller 12 is provided on an upper end surface of the positioning frame 11, the supporting roller 12 has a mounting portion for mounting the positioning support plate 21 so that the wheels 22 are suspended, and the mounting portion forms a flat mounting surface. It will be appreciated that the supporting rollers 12 hold the positioning trolley 2 up.

In the supporting and positioning frame 1 according to the embodiment of the present utility model, the positioning carriage 2 is mounted on the positioning frame 1, so that the positioning carriage 2 is supported in a first direction (for example, a mounting surface of the mounting portion may extend in a horizontal direction). When the positioning trolley 2 is mounted on the supporting rolling member of the positioning frame 1, the wheels 22 are suspended on the positioning support plate 21 relative to the positioning frame 1, and therefore, the mounting surface of the mounting part provides support for the positioning support plate 21, and the influence of abrasion of part of the wheels 22 on the positioning support plate 21 in the height direction caused by repeated drawing and transporting of the positioning trolley 2 is eliminated, so that the problem of deflection of the positioning support plate 21 is avoided. Thereby being beneficial to improving the welding quality of the robot to the floor assembly. Therefore, the supporting and positioning frame 1 provided by the embodiment of the utility model has the advantages of eliminating the problem of failure of the height direction reference caused by abrasion of the wheels 22, providing positioning in the height direction for welding the floor assembly of the vehicle, and being beneficial to improving the welding quality of the robot. Meanwhile, the requirements on the flatness requirements of the positioning trolley 2 are reduced through the matching of the positioning frame 1 and the positioning trolley 2. Thereby, the service life of the positioning cart 2 can be prolonged.

Therefore, the supporting and positioning frame 1 of the embodiment of the utility model has the advantages of eliminating the influence of the abrasion of the wheels 22 on the positioning and supporting plate 21, providing necessary conditions for improving the welding quality and prolonging the service life of the positioning trolley 2.

In addition, according to the supporting and positioning frame 1 provided by the embodiment of the utility model, the positioning frame 1 is divided into the positioning frame body 11 and the supporting rolling elements 12, and the supporting rolling elements 12 are in rolling fit with the positioning support plate 21 of the positioning trolley 2, so that the contact area between the positioning support plate 21 and the positioning frame 1 and the corresponding friction resistance are reduced. Thus, the difficulty of the positioning carriage 2 transitioning between the mobile and loaded states is reduced. Therefore, the supporting and positioning frame 1 is beneficial to improving the convenience of operation.

Specifically, the positioning frame 11 is fixed to the floor. The mounting portion cooperates with the positioning support plate 21 to ensure a flat support surface for it.

Specifically, as shown in fig. 1 and 2, for example, in the mounted state, the supporting roller 12 is provided at the upper end of the positioning frame 11. The positioning carriage 2 is provided at the upper end of the supporting roller 12.

As shown in fig. 8 and 9, the supporting roller 12 includes a positioning cylinder 121 and a rolling ball 122, the positioning cylinder 121 is fitted on the positioning frame 11, the rolling ball 122 is rotatably provided in the positioning cylinder 121, and a part of the rolling ball 122 is exposed to the outside of the positioning cylinder 121 so as to form a mounting portion in a rotary fit with the positioning support plate 21. It will be appreciated that positioning support plate 21 is releasably engaged over rolling ball 122.

The supporting and positioning frame 1 of the embodiment of the present utility model is formed by dividing the supporting rolling member 12 into a positioning cylinder 121 and a rolling ball 122. Therefore, the supporting and positioning frame 1 provided by the embodiment of the utility model has the advantages of simple structure and low production cost.

Alternatively, the upper end surface of the positioning frame 11 has a mounting groove, and the positioning cylinder 121 is detachably mounted on the upper end surface of the positioning frame 11. For example, the positioning cylinder 121 may be fixed to the positioning frame 11 by screws, and the supporting roller 12 may be periodically subjected to lubrication maintenance during long-term use.

Alternatively, the rolling ball 122 is detachably provided to the positioning cylinder 121. Thus, the supporting and positioning frame 1 of the embodiment of the utility model has the advantage of being convenient for replacing the rolling balls 122.

Further, the rolling ball 122 is a steel ball which is fitted in the positioning cylinder 121 in a universal rotation manner. Therefore, the supporting and positioning frame 1 provided by the embodiment of the utility model has the advantages of high structural strength and long service life.

As shown in fig. 3 and 6, the supporting rollers 12 have at least two sets of the supporting rollers 12 disposed on the positioning frame 11 at intervals in the second direction (e.g., the left-right direction shown in fig. 1), each set of the supporting rollers 12 having a plurality of the supporting rollers 12, the plurality of the supporting rollers 12 disposed at intervals in the first direction (e.g., the front-rear direction shown in fig. 1), the first direction being disposed perpendicular to the second direction.

The supporting and positioning frame 1 of the embodiment of the utility model is provided with a plurality of groups of supporting rolling elements 12, and each group of supporting rolling elements 12 is provided with a plurality of supporting rolling elements 12, so that multi-point support can be formed for the positioning support plate 21. Therefore, the supporting and positioning frame 1 has the advantage of improving the stability of the matching. Furthermore, the provision of a plurality of support rollers 12 facilitates a reduction in the size of the support rollers 12. For example, as shown in fig. 3, the supporting rollers 12 are provided in two groups of 6 supporting rollers 12 each.

The plurality of rolling balls 122 supporting the rolling elements 12 form a bearing surface of the mounting portion.

As shown in fig. 6 to 9, the positioning frame 1 further includes a guide roller 15, the positioning frame body 11 has a loading end 111 (e.g., a rear end shown in fig. 3), the loading end 111 is provided at one end of the positioning frame 1 in the first direction, the guide roller 15 is provided at the loading end 111, and the height of the guide roller 15 is lower than that of the support roller 12.

In the supporting and positioning frame 1 of the embodiment of the utility model, in each group of supporting rolling elements 12, the guiding rolling elements 15 have certain guiding and transitional functions by making the height of the guiding rolling elements 15 lower than the height of the supporting rolling elements 12. This reduces the difficulty of transition of the positioning carriage 2 between the mobile state and the loaded state.

Alternatively, the loading end 111 may be provided with two guide plates which are oppositely disposed on the positioning frame 11 in the second direction to prevent the convenience of docking the positioning carriage 2 with the positioning frame 1.

As shown in fig. 3 to 9, the positioning frame 1 further includes a locking mechanism 13, the locking mechanism 13 being provided on the positioning frame body 11, the locking mechanism 13 having a clamping portion capable of clamping the positioning support plate 21.

According to the supporting and positioning frame 1 provided by the embodiment of the utility model, the positioning trolley 2 can be positioned through the locking mechanism 13 of the positioning frame 1, and the positioning trolley 2 is prevented from shaking. Therefore, the stability of the robot to the floor assembly in welding operation is improved.

As shown in fig. 7, the locking mechanism 13 includes a first locking member 131 and a second locking member 132, the first locking member 131 and the second locking member 132 are disposed on the positioning frame 11 at intervals along a second direction, a portion of the positioning cart 2 is clamped between the first locking member 131 and the second locking member 132, the first locking member 131 can be moved closer to or away from the second locking member 132 so as to form a clamping portion, and the second direction is disposed perpendicular to the first direction.

In the supporting and positioning frame 1 of the embodiment of the utility model, by dividing the locking mechanism 13 into the first locking member 131 and the second locking member 132, a part of the positioning trolley 2 is not clamped between the first locking member 131 and the second locking member 132, and the first locking member 131 can be close to or far from the second locking member 132. Thus, the first locking member 131 and the second locking member 132 play a role in clamping and correcting the positioning trolley 2, and can correct and position the trolley with deflection to a certain degree. Therefore, the stability of the robot to the floor assembly in welding operation is further improved.

As shown in fig. 1 and 6, the locking mechanism 13 further includes a distance sensor 133 to accurately position the positioning carriage 2 with respect to the positioning frame 1. Therefore, the stability of the robot to the floor assembly in welding operation is further improved.

As shown in fig. 5 and 6, each of the first locking member 131 and the second locking member 132 includes a clamping plate 1321 and a roller 1322 provided on the clamping plate 1321, the roller 1322 being provided spaced apart from the clamping plate 1321 in a first direction so as to form a spacing groove capable of spacing the positioning support plate 21, the roller 1322 being rotatably provided on the positioning frame 11 with a rotation center of the roller 1322 being parallel to a second direction, an upper end surface of the roller 1322 being higher than an upper end surface of the supporting roller 12.

According to the supporting and positioning frame 1 provided by the embodiment of the utility model, the convenience of transition between the moving state and the carrying state can be further improved through the rollers 1322 of the first locking member 131 and the second locking member 132.

Alternatively, the clamping plate 132 may lock the ratchet, and the positioning carriage 2 may be positioned by locking the ratchet to lock the roller 1322 when the positioning carriage 2 moves to the corresponding position.

Specifically, the roller 1322 is disposed opposite to the distance sensor 133 in the first direction.

As shown in fig. 3, 4 and 9, the positioning frame 1 further includes a limiting block 14, where the limiting block 14 is disposed at one end of the positioning frame 1 in the length direction, and the limiting block 14 abuts against the positioning support plate 21.

According to the supporting and positioning frame 1 provided by the embodiment of the utility model, the limiting block 14 of the positioning frame 1 is abutted against the positioning support plate 21, so that the positioning trolley 2 can be further positioned. Therefore, the stability of the robot to the floor assembly in welding operation is improved.

Optionally, the positioning frame 11 has a limiting end 112, the limiting end 112 is opposite to the loading end 111 in the first direction, and the limiting block 14 is disposed at the limiting end 112.

As shown in fig. 3, 4 and 9, the stopper 14 has a stopper protrusion 141, the positioning carriage 2 has a stopper groove 211, the stopper 14 has a stopper protrusion 141, and the stopper protrusion 141 can be inserted into the stopper groove of the positioning support plate 21.

According to the supporting and positioning frame 1 provided by the embodiment of the utility model, the positioning trolley 2 can be further limited by matching the limiting convex part 141 of the positioning frame 1 with the limiting groove 211 of the positioning trolley 2. Therefore, the device has the advantage of simple structure.

As shown in fig. 3 and 7, the positioning frame 11 includes a positioning base plate 113 and guide support rails 114, the positioning base plate 113 being disposed at intervals along the first direction, the guide support rails 114 being provided on the plurality of positioning base plates 113, the support rollers 12 being disposed on the guide support rails 114. Therefore, the device has the advantages of simple structure and low processing cost. It will be appreciated that the spacing of the bottom end of the wheel 22 from the alignment support plate 21 is less than the sum of the heights of the alignment base plate 113 and the guide support rail 114 to ensure that the wheel 22 is in a suspended condition.

Specifically, the guide support rails 114 have at least two, and at least two sets of the support rollers 12 are provided in one-to-one correspondence with at least two guide support rails 114. And at least a portion of the supporting roller 12 is raised above the upper end face of the guide supporting rail 114.

The floor assembly for a vehicle according to the embodiment of the utility model further comprises at least two limit rails 3, and in the second direction, the wheel 22 and the spacer 1 are located along each between the two limit rails 3.

The guide portion 16 includes a first flap 161 and a second flap 162, the first flap 161 being disposed on one end of one of the positioning substrates 113, the second flap 162 being disposed on one end of the other guide support rail 114, a distance between the first flap 161 and the second flap 162 in the first direction increasing from a free end (e.g., a rear end as shown in fig. 1) to a direction near the one end of the guide support rail 114, and a height of each of the first flap 161 and the second flap 162 increasing from the free end to a direction near the one end of the guide support rail 114. In the process of transferring the positioning trolley 2 to support the positioning frame 1, the positioning trolley 2 can be positioned by the first folded plate 161 and the second folded plate 162 of the guide part 16, so that the problem of deviation of the positioning trolley 2 is prevented. Thus, the positioning cart can be smoothly transferred to the guide support rail 114. Therefore, the device has the advantages of simple structure and convenience in use.

Specifically, for example, as shown in fig. 1, the pitch of the first flap 161 and the second flap 162 in the first direction increases from the front to the rear.

Alternatively, the first flap 161 is smoothly joined to one of the guide support rails 114 and the second flap 162 is smoothly joined to the other guide support rail 114. Thereby, the positioning carriage 2 can be transferred to the guide support rail 114 more smoothly.

According to the vehicle floor assembly provided by the embodiment of the utility model, the moving track of the positioning trolley 2 in a moving state can be positioned through the arranged limiting rail 3, so that the problem of out-of-control in the moving process of the positioning trolley 2 is prevented, and when the positioning trolley 2 is changed from the moving state to a carrying state, the positioning trolley 2 and the positioning frame 1 can be smoothly butted, and the convenience of state transition of the positioning trolley 2 is improved. While the positioning carriage 2 is in the moving state, the positioning carriage 2 is moved by the wheels 22.

The positioning device 100 of the vehicle floor assembly according to the embodiment of the utility model comprises a positioning trolley 2 and a supporting positioning frame 1 according to any one of the above, the positioning trolley 2 has a moving state and a carrying state, the positioning trolley 2 comprises a positioning support plate 21 and wheels 22, the positioning support plate 21 is used for carrying the vehicle floor assembly, the wheels 22 are rotatably arranged on the positioning support plate 21, the positioning support plate 21 is detachably carried on the carrying part of the positioning frame 1 so as to be changed between the moving state and the carrying state, and the wheels 22 are suspended relative to the positioning frame 1 (ground) in the carrying state.

The positioning device 100 of the vehicle floor assembly of the embodiment of the utility model has the advantages of eliminating the influence of the abrasion of the wheels 22 on the positioning support plate 21, providing necessary conditions for improving the welding quality and prolonging the service life of the positioning trolley 2.

A welding system for a vehicle floor assembly according to an embodiment of the present utility model includes a welding robot and a positioning device 100 for a vehicle floor assembly according to any one of the above. Thus, the welding system for a vehicle floor assembly of the embodiment of the present utility model has the advantage of eliminating the influence of wear of the wheels 22 on the positioning support plate 21 and providing conditions for improving the welding quality.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (11)

1. A support spacer, comprising:

the positioning frame body extends along a first direction;

a guide portion provided on one end of the positioning frame body in the first direction;

the support rolling piece is arranged on the upper end face of the positioning frame body and is provided with a carrying part for carrying the positioning support plate, and the carrying part forms a flat carrying surface.

2. The supporting and positioning frame according to claim 1, wherein the supporting and rolling member includes a positioning cylinder and a rolling ball, the positioning cylinder is provided on the positioning frame body, the rolling ball is rotatably provided in the positioning cylinder, and a part of the rolling ball is exposed outside the positioning cylinder so as to form the mounting portion in rotational engagement with the positioning support plate.

3. The support positioning frame according to claim 2, wherein the support rolling elements have at least two groups, at least two groups of the support rolling elements are arranged on the positioning frame body at intervals along a second direction, and each group of the support rolling elements has a plurality of the support rolling elements arranged at intervals along the first direction, wherein the first direction is perpendicular to the second direction.

4. The support spacer of claim 2, further comprising a guide roller, wherein the spacer body has a loading end disposed at an end of the spacer in the first direction, wherein the guide roller is disposed at the loading end, and wherein the guide roller has a height that is lower than a height of the support roller.

5. The support jig according to claim 1, further comprising a locking mechanism provided on the jig body, the locking mechanism having a clamping portion capable of clamping the positioning support plate;

and/or, the locating rack still includes the stopper, the setting of stopper is in locating rack length direction's one end, the stopper has spacing convex part, spacing convex part can with the spacing groove grafting of location backup pad.

6. The support jig according to claim 5, wherein the locking mechanism includes a first locking member and a second locking member, the first locking member and the second locking member being disposed on the jig body at a distance in a second direction, and the first locking member being movable toward and away from the second locking member so as to form the holding portion, the second direction being disposed perpendicular to the first direction.

7. The supporting and positioning frame according to claim 6, wherein the first locking member and the second locking member each include a holding plate and a roller provided on the holding plate, the roller is provided spaced apart from the holding plate in the first direction so as to form a spacing groove capable of spacing the positioning and supporting plate, the roller is rotatably provided on the positioning frame body, and a rotation center of the roller is parallel to the second direction, and an upper end face of the roller is higher than an upper end face of the supporting and rolling member.

8. The support jig according to any one of claims 1 to 7, wherein the jig body includes a positioning base plate and a guide support rail, the positioning base plate being disposed at intervals in the first direction, the guide support rail being erected on a plurality of the positioning base plates, the support rolling member being disposed on the guide support rail, the guide portion being disposed on one end of the guide support rail;

and/or, still include two at least spacing rails, the locating rack is along the second direction all is located two between the spacing rail, first direction and second direction perpendicular setting.

9. The support spacer of claim 8, wherein the guide portion comprises a first flap and a second flap, the first flap being disposed on one end of one of the guide support rails and the second flap being disposed on one end of the other guide support rail, the distance of the first flap and the second flap in the second direction increasing from the free end to a direction closer to the one end of the guide support rail, the height of each of the first flap and the second flap increasing from the free end to a direction closer to the one end of the guide support rail.

10. A positioning device of a vehicle floor assembly, characterized by comprising a positioning trolley and a supporting positioning frame according to any one of claims 1-9, the positioning trolley having a mobile state and a loading state, the positioning trolley comprising a positioning support plate for loading the vehicle floor assembly and wheels rotatably arranged on the positioning support plate, the positioning support plate being detachably mounted on the loading part of the positioning frame for transition between the mobile state and the loading state, in which the wheels are suspended in relation to the positioning frame.

11. A welding system for a vehicle floor assembly, comprising a welding robot and a positioning device for a vehicle floor assembly according to claim 10.