CN218341386U

CN218341386U - Automobile parts welding position frock

Info

Publication number: CN218341386U
Application number: CN202222595376.4U
Authority: CN
Inventors: 康正涛; 滕飞; 官升龙; 左锋
Original assignee: Shiyan Dakang Machinery Technology Co ltd
Current assignee: Shiyan Dakang Machinery Technology Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-01-20
Anticipated expiration: 2032-09-29

Abstract

The utility model provides an automobile part welding positioning tool, which comprises an installation platform, a first supporting piece, a first pressing component, a second supporting piece and a second pressing component; the first supporting piece is fixedly arranged on the mounting platform and used for supporting the lower sheet body; the first pressing assembly is fixedly arranged on the mounting platform and used for pressing the first end of the part in the length direction to the lower sheet body; the second supporting piece is fixedly arranged on the mounting platform and used for supporting the upper sheet body at the first end of the part in the length direction; the second pressing component is fixedly arranged on the mounting platform and used for pressing the upper sheet body; still including supporting and compressing tightly the subassembly for carry out the support to the last lamellar body on spare part length direction second end and carry out to compress tightly lower lamellar body simultaneously. The utility model discloses a welding position frock can realize that the lamellar body carries out accurate location with lower lamellar body post-assembly relative position, makes and goes up lamellar body and lower lamellar body welding position and accord with the designing requirement.

Description

Automobile parts welding position frock

Technical Field

The utility model relates to the field of welding technique, especially, relate to an automobile parts welding position frock.

Background

The welding of the automobile in the production and manufacturing process is a very critical process, many parts on the automobile are mostly formed by welding at least two stamping parts, and the stamping parts need to be assembled and positioned by a welding positioning tool and then are welded. For example, parts on an automobile subframe are mostly cavity bodies formed by welding an upper sheet body and a lower sheet body which are formed by stamping into a whole.

When carrying out sub vehicle frame spare part positioning, need compress tightly about going on respectively to last lamellar body and lower lamellar body, guarantee to go up the lamellar body and possess accurate relative position down after the lamellar body assembles to lamellar body and lower lamellar body welding position accord with the designing requirement on the assurance. The existing welding positioning tool generally adopts the mode that supporting mechanisms are respectively arranged on the outer bottom surface of a lower sheet body and the inner top surface of an upper sheet body to respectively support the upper sheet body and the lower sheet body, and then pressing mechanisms are respectively arranged on the outer top surface of the upper sheet body and the inner bottom surface of the lower sheet body to realize the relative position fixation of the upper sheet body and the lower sheet body.

However, the automobile parts are limited by the structural requirements, and are not usually a middle gauge, such as a cavity body composed of some upper sheet bodies and some lower sheet bodies, and the space position of the opening of the cavity body is insufficient, so that the supporting mechanism and the pressing mechanism cannot enter between the upper sheet body and the lower sheet body in the vertical direction.

In order to realize that the welding position accords with the design requirement after the upper sheet body and the lower sheet body are assembled, the distance between the upper sheet body and the lower sheet body is required to be a fixed value, in the prior art, a translation mechanism is generally adopted to drive a positioning block to be horizontally inserted between the upper sheet body and the lower sheet body, and the thickness of the positioning block is matched with the distance between the upper sheet body and the lower sheet body, therefore, when a pressing mechanism presses the top surface of the upper sheet body, the positioning block supports the upper sheet body, the position of the upper sheet body is ensured, meanwhile, the positioning block presses the lower sheet body downwards, and the bottom surface of the lower sheet body is supported by a supporting mechanism, thereby realizing that the upper sheet body and the lower sheet body keep accurate relative positions.

However, the above embodiment has a certain technical drawback, because the lower sheet body is first installed on the supporting mechanism, and then the positioning block is driven by the translation mechanism to be horizontally inserted into the lower sheet body, because the lower sheet body belongs to a stamping part, the surface shape of the lower sheet body is irregular, when the positioning block is horizontally moved along the inner top surface of the lower sheet body, the positioning block is obstructed by the lower sheet body, and cannot be smoothly inserted into the lower sheet body, if the positioning block is smoothly inserted, a gap needs to be left between the positioning block and the inner top surface of the lower sheet body, thus, although the positioning block can be inserted into the lower sheet body, after the subsequent upper sheet body is installed on the lower sheet body, the inner bottom surface of the upper sheet body can be contacted with the top surface of the positioning block, and the upper and lower sheet bodies can be vertically pressed by the pressing mechanism, but because a gap exists between the positioning block and the lower sheet body, and the positioning block can only horizontally move, and cannot move up and down, therefore, the positioning block cannot press the upper sheet body and the lower sheet body after being assembled, cannot guarantee that the upper sheet body and the lower sheet body have an accurate relative position, and further make the welded parts not meet the design requirements, and the welded parts do not reach the standard.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an automobile parts welding position frock solves current welding position frock and when carrying out the tight location of assembly clamp to parts, can't guarantee that the lamellar body possesses accurate relative position with lower lamellar body, leads to the problem that the lamellar body is not conform to the designing requirement with lower lamellar body welding position.

The technical scheme of the utility model is realized like this: the utility model provides an automobile part welding positioning tool, which comprises an installation platform, a first supporting piece, a first pressing component, a second supporting piece and a second pressing component;

the first supporting piece is fixedly arranged on the mounting platform and used for supporting the lower sheet body;

the first pressing assembly is fixedly arranged on the mounting platform and used for pressing the first end of the part in the length direction to the lower sheet body;

the second supporting piece is fixedly arranged on the mounting platform and used for supporting the upper sheet body at the first end of the part in the length direction;

the second pressing assembly is fixedly arranged on the mounting platform and used for pressing the upper sheet body;

the supporting and pressing assembly is used for supporting the upper sheet body at the second end of the length direction of the part and pressing the lower sheet body.

On the basis of the technical scheme, preferably, the supporting and compressing assembly comprises a first fixed seat, a translation cylinder, an installation frame, a moving part and a positioning device;

the first fixing seat is vertically fixed at one end, far away from the first pressing component, of the mounting platform in the length direction;

the fixed end of the translation cylinder is fixedly arranged on the first fixed seat, and the telescopic end of the translation cylinder horizontally extends towards the first pressing assembly;

the mounting frame is fixedly connected with the telescopic end of the translation cylinder, and a mounting opening is horizontally formed in one side, away from the translation cylinder, of the mounting frame;

the movable piece is arranged in the mounting opening and can move up and down along the mounting opening relative to the mounting frame;

the positioning device is fixedly connected with one side, far away from the mounting frame, of the moving part, and the thickness of the positioning device is matched with the assembly distance between the upper sheet body and the lower sheet body.

Further, preferably, the vertical slide rail that is provided with in the installing port, the one side that positioner was kept away from to the moving part passes through slider and slide rail sliding connection, is provided with the elastic component between moving part and the installing port bottom.

Further, preferably, the bottom surface of the movable member and the bottom surface of the mounting opening are respectively provided with a mounting hole for mounting the elastic member.

On the basis of the technical scheme, preferably, positioner includes fixed block, first locating piece and second locating piece, fixed block fixed mounting is in one side that the installing frame was kept away from to the moving part, and first locating piece level demountable installation is at the fixed block top surface for top surface contacts in the last lamellar body, and second locating piece level demountable installation is in the fixed block bottom surface, is used for contacting the bottom surface in the lamellar body down.

On the basis of the technical scheme, it is preferred, first compress tightly the subassembly and include the second fixing base, compress tightly the cylinder, first compress tightly arm and articulated elements, second fixing base fixed mounting is on the mounting platform that the first end of spare part length direction corresponds, and the one end and the first arm hinge that compresses tightly of articulated elements are connected, and the other end and the second fixing base hinge of articulated elements are connected, and the fixed end fixed mounting who compresses tightly the cylinder is in second fixing base bottom surface, and the flexible end that compresses tightly the cylinder is vertical upwards to be connected with the first one end hinge that compresses tightly the arm, and the one end that compresses tightly the cylinder was kept away from to first arm that compresses tightly is used for compressing tightly the bottom surface in the first end of lower lamellar body.

On the basis of the technical scheme, preferably, the second compresses tightly the one end that the subassembly is located mounting platform and is close to the support and compress tightly the subassembly, the second compresses tightly the subassembly and compresses tightly the arm including upset cylinder and second, the vertical fixed setting of upset cylinder is on mounting platform, and the one end that the second compressed tightly the arm is rotated with the upset cylinder and is connected, and the other end that the second compressed tightly the arm is provided with and is used for compressing tightly the piece respectively to last piece length direction both ends.

On the basis of the technical scheme, preferably, a third fixing seat is further fixedly arranged on the mounting platform between the first pressing component and the second pressing component, and a plurality of first supporting pieces are horizontally arranged along the top surface of the third fixing seat at intervals.

Further, it is preferred, first support piece bottom still is provided with the locating pin subassembly, the locating pin subassembly includes jacking cylinder, connecting plate and locating lever, the fixed end of jacking cylinder is fixed to be set up in third fixing base bottom, the flexible end of jacking cylinder is vertical upwards with connecting plate fixed connection, the locating lever is provided with one at least, its vertical fixed setting is on the connecting plate top, the locating lever passes the locating hole on the lower lamellar body to support with the internal top surface counterbalance of last lamellar body, the locating lever top is provided with the reference column for with the locating hole cooperation on the last lamellar body, the diameter of reference column is less than the diameter of locating lever.

The utility model discloses following beneficial effect has for prior art:

(1) The utility model discloses an automobile parts welding position frock supports lower lamellar body through setting up first support piece, through set up first compress tightly subassembly and second support piece at spare part length direction one end, can realize compressing tightly lower lamellar body one end respectively, and support upper lamellar body one end, through set up the support compressing assembly at the spare part length direction other end, can carry out the application to lower lamellar body when carrying out the support to the upper lamellar body on the spare part length direction second end, and then cooperate the second compressing assembly to compress tightly the upper lamellar body, can realize that the relative position carries out accurate location after upper lamellar body and lower lamellar body assembly, make upper lamellar body and lower lamellar body welding position accord with the design requirement;

(2) The elastic element is arranged between the moving element and the mounting opening, and under the action of the elastic element in an initial state, the positioning device can move upwards relative to the mounting frame, after the lower sheet body is positioned and clamped on the first supporting element, a certain gap exists between the bottom surface of the positioning device and the inner bottom surface of the lower sheet body, so that the translation cylinder can conveniently push the positioning device to enter the lower sheet body, after the upper sheet body is assembled on the lower sheet body, under the action of the second pressing component, the positioning device compresses the elastic element and moves downwards to enable the positioning device to be in contact with the inner top surface of the lower sheet body, meanwhile, the thickness of the positioning device is matched with the assembly interval between the upper sheet body and the lower sheet body, the upper sheet body can be supported when the positioning device synchronously presses the lower sheet body, and the upper sheet body and the lower sheet body are guaranteed to have accurate relative positions;

(3) Through the setting of locating pin subassembly, can realize the lamellar body and lower lamellar body horizontal direction location, guarantee that the lamellar body does not take place relative displacement with lower lamellar body in the horizontal direction, can support last lamellar body middle part simultaneously, avoid two to compress tightly the subassembly and transship the last lamellar body deformation that leads to last lamellar body compression force.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a first view assembly diagram of the upper and lower sheets of the present invention;

fig. 2 is a second view assembly of the upper and lower sheets of the present disclosure;

FIG. 3 is a schematic view of the three-dimensional structure of the welding positioning tool and the assembly of the components disclosed in the present invention;

fig. 4 is a schematic perspective view of the welding positioning tool disclosed by the utility model;

FIG. 5 is a schematic view of the welding positioning tool and the assembly plane structure of the components of the present invention;

fig. 6 is a schematic perspective view of the supporting and compressing assembly disclosed by the present invention;

fig. 7 is a schematic view of an assembly structure of the positioning pin assembly and the components of the present invention;

reference numerals are as follows:

100. an upper sheet body; 200 lower sheet body; 1. mounting a platform; 2. a first support member; 3. a first hold-down assembly; 4. a second support member; 6. a second hold-down assembly; 5. supporting the compression assembly; 51. a first fixed seat; 52. a translation cylinder; 53. installing a frame; 54. a movable member; 55. a positioning device; 531. an installation port; 532. a slide rail; 533. a slider; 56. an elastic member; 551. a fixed block; 552. a first positioning block; 553. a second positioning block; 31. a second fixed seat; 32. a pressing cylinder; 33. a first pressing arm; 34. an articulation member; 61. turning over the air cylinder; 62. a second pressing arm; 63. a pressing member; 7. a third fixed seat; 8. a dowel assembly; 81. a jacking cylinder; 82. a connecting plate; 83. positioning a rod; 831. and a positioning column.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

As shown in fig. 1, combine fig. 2 and 3, the utility model provides an automobile parts welding position frock, it is to being tight to form last lamellar body 100 and lower lamellar body 200 by the punching press and carry out the positioning and press from both sides, realizes the automobile parts that welds for cavity body structure between last lamellar body 100 and the lower lamellar body 200.

Specifically, in order to realize the positioning and clamping of the upper sheet body 100 and the lower sheet body 200, the welding positioning tool of the embodiment includes a mounting platform 1, a first supporting member 2, a first pressing component 3, a second supporting member 4, and a second pressing component 6.

Wherein, the horizontal fixed mounting of mounting platform 1 is on welding equipment, conveniently welds welding robot on the equipment and carries out welding operation.

First support piece 2, fixed the setting on mounting platform 1, be used for supporting down lamellar body 200, it is concrete, lamellar body 100 and lower lamellar body 200 are all placed horizontally on mounting platform 1 in this embodiment, make things convenient for the clamping location, also conveniently carry out follow-up welding, it is concrete, the opening of lower lamellar body 200 is up, the opening of going up lamellar body 100 is down, the open end of going up lamellar body 100 is inserted in the open end of lower lamellar body 200, in this embodiment, first support piece 2 is along 1 length direction of mounting platform, the setting is at 1 middle part of mounting platform, come to support lower lamellar body 200 length direction outer bottom surface.

In order to realize that lower lamellar body 200 presss from both sides tightly after the location, realize the rigidity, this embodiment sets up first pressure components 3 on mounting platform 1, compresses tightly lower lamellar body 200 to the first end of spare part length direction.

Because the upper sheet body 100 is inserted into the lower sheet body 200, in order to ensure the position of the upper sheet body 100 and the lower sheet body 200 after assembly, the final welding position is accurate, after the upper sheet body 100 is assembled on the lower sheet body 200, the upper sheet body 100 needs to be supported, in the embodiment, the second supporting piece 4 is fixedly arranged on the mounting platform 1 beside the first pressing assembly 3 and is used for supporting the upper sheet body 100 by the first end of the length direction of the part

The positioning and clamping structure only completes the supporting and clamping of one end of the upper sheet body 100 and one end of the lower sheet body 200, but the other end of the upper sheet body 100 and the other end of the lower sheet body 200 are not supported and clamped, so that the effective clamping and positioning of the upper sheet body 100 and the lower sheet body 200 cannot be ensured.

Although the second end of the component can be supported and clamped by the structure of the second supporting member 4 and the first pressing member 3 in the prior art, the second supporting member 4 and the first pressing member 3 cannot enter between the upper sheet 100 and the lower sheet 200 in the vertical direction due to the structure of the component.

For this reason, this embodiment is through setting up the support compressing assembly 5 on the mounting platform 1 at spare part second end place for compress tightly lower lamellar body 200 when carrying out the support to last lamellar body 100 on the spare part length direction second end, cooperate the second to compress tightly subassembly 6 and to last lamellar body 100's compressing tightly again, can realize going up lamellar body 100 and lower lamellar body 200 and assemble back relative position and carry out accurate location, make and go up lamellar body 100 and lower lamellar body 200 welding position and accord with the designing requirement.

In the prior art, some embodiments drive the positioning block to be horizontally inserted between the upper sheet 100 and the lower sheet 200 by using the translation mechanism, and match the thickness of the positioning block with the distance between the upper sheet 100 and the lower sheet 200, so that when the pressing mechanism presses the top surface of the upper sheet 100, the positioning block supports the upper sheet 100, thereby ensuring the position of the upper sheet 100 to be positioned, and meanwhile, the positioning block presses the lower sheet 200 downwards, and then the supporting mechanism supports the bottom surface of the lower sheet 200, thereby realizing that the upper sheet 100 and the lower sheet 200 maintain precise relative positions.

In the above manner, since the lower sheet 200 is a stamping part, the surface shape is irregular, when the positioning block horizontally moves along the inner top surface of the lower sheet 200, the positioning block is obstructed by the lower sheet 200, and cannot be smoothly inserted into the lower sheet 200, if the positioning block is required to be smoothly inserted, a gap is required to be left between the positioning block and the inner top surface of the lower sheet 200, so that although the positioning block can be inserted into the lower sheet 200, after the subsequent upper sheet 100 is mounted on the lower sheet 200, the inner bottom surface of the upper sheet 100 can be contacted with the top surface of the positioning block, and the upper and lower pressing of the upper sheet 100 can be realized through the pressing mechanism, since a gap is left between the positioning block and the lower sheet 200, and the positioning block can only horizontally move and cannot move up and down, therefore, the positioning block cannot tightly press the lower sheet 200, and therefore, after the upper sheet 100 and the lower sheet 200 are assembled, the accurate relative position of the upper sheet 100 and the lower sheet 200 cannot be ensured, and further, the welding position of the upper sheet 100 and the lower sheet 200 cannot meet the design requirements, and the welded parts cannot reach the standard.

To this end, the supporting and pressing assembly 5 of the present embodiment is configured with some structures to solve the above technical problem, and specifically, as shown in fig. 3 to 6, the supporting and pressing assembly 5 of the present embodiment includes a first fixed seat 51, a translational cylinder 52, a mounting frame 53, a movable member 54, and a positioning device 55.

Wherein, the first fixing seat 51 is vertically fixed at one end of the mounting platform 1 away from the first pressing component 3 in the length direction.

The fixed end of the translation cylinder 52 is fixedly arranged on the first fixed seat 51, and the telescopic end of the translation cylinder 52 horizontally extends towards the first pressing component 3.

The mounting frame 53 is fixedly connected with the telescopic end of the translation cylinder 52, and a mounting opening 531 is horizontally formed in one side, far away from the translation cylinder 52, of the mounting frame 53. The movable member 54 is disposed in the mounting opening 531, and can move up and down along the mounting opening 531 relative to the mounting frame 53, specifically, a sliding rail 532 is vertically disposed in the mounting opening 531, one surface of the movable member 54 away from the positioning device 55 is slidably connected to the sliding rail 532 through a sliding block 533, and an elastic member 56 is disposed between the movable member 54 and the bottom of the mounting opening 531. The positioning device 55 is fixedly connected with one side of the movable piece 54 far away from the mounting frame 53, and the thickness of the positioning device 55 is matched with the assembly distance between the upper sheet body 100 and the lower sheet body 200.

Therefore, in the initial state, under the action of the elastic element 56, the movable element 54 moves upwards in the mounting opening 531, the movable element 54 drives the positioning device 55 to move upwards relative to the mounting frame 53, after the lower sheet body 200 is positioned and clamped on the first support member 2, a certain gap exists between the bottom surface of the positioning device 55 and the inner bottom surface of the lower sheet body 200, the positioning device 55 is conveniently pushed by the translation cylinder 52 to enter the lower sheet body 200, after the upper sheet body 100 is assembled on the lower sheet body 200, the second pressing component 6 presses the upper sheet body 100 downwards, the upper sheet body 100 presses the positioning device 55 downwards, the positioning device 55 compresses the elastic element 56 through the movable element 54, the movable element 54 moves downwards to drive the positioning device 55 to move downwards in the vertical direction, so that the positioning device 55 is in contact with the inner top surface of the lower sheet body 200, meanwhile, due to the fact that the thickness of the positioning device 55 is matched with the assembling distance between the upper sheet body 100 and the lower sheet body 200, when the positioning device 55 synchronously compresses the lower sheet body 200, the upper sheet body 100 can be supported, and the accurate relative position of the lower sheet body 200 can be guaranteed.

The supporting and pressing assembly 5 disclosed in this embodiment is convenient to insert the positioning device 55 into the lower sheet body 200 without being obstructed by the shape of the lower sheet body 200 on the one hand, and on the other hand, the thickness of the positioning device 55 is matched with the distance between the upper sheet body 100 and the lower sheet body 200, so that the inner bottom surface of the end part of the lower sheet body 200 can be pressed while the positioning device 55 supports the inner top surface of the end part of the upper sheet body 100, and meanwhile, after the upper sheet body 100 and the lower sheet body 200 are positioned and clamped, the assembly position of the upper sheet body 100 and the lower sheet body 200 conforms to the welding requirement.

In some preferred embodiments, the bottom surface of the movable member 54 and the bottom surface of the mounting opening 531 are respectively provided with mounting holes for mounting the elastic member 56. With this arrangement, the elastic member 56 can be stably confined between the movable member 54 and the mounting opening 531 through the mounting hole, and the elastic member 56 is prevented from coming off.

In order to realize the supporting and compressing functions of the positioning device 55, the positioning device 55 in this embodiment shows a preferred embodiment, and specifically, the positioning device 55 includes a fixing block 551, a first positioning block 552 and a second positioning block 553. Fixed block 551 fixed mounting is kept away from one side of installing frame 53 at moving part 54, and first locating piece 552 horizontal demountable installation is at fixed block 551 top surface for top surface contacts in last lamellar body 100, and second locating piece 553 horizontal demountable installation is at fixed block 551 bottom surface for bottom surface contacts in lower lamellar body 200. In this way, the thickness of the entire positioning device 55 is adapted to the distance between the upper blade 100 and the lower blade 200 by adjusting the thickness of the first positioning block 552 and the second positioning block 553. In this embodiment, the first positioning block 552 and the second positioning block 553 have guiding edges inclined towards one end of the component, so as to prevent the lower blade 200 from touching the positioning device 55 when the positioning device 55 is inserted into the lower blade 200.

In order to realize compressing tightly the bottom surface in the first end of lower lamellar body 200, the first subassembly 3 that compresses tightly of this embodiment shows some embodiments, and is specific, and first subassembly 3 that compresses tightly includes second fixing base 31, compresses tightly cylinder 32, first compressing arm 33 and articulated elements 34, second fixing base 31 fixed mounting is on the mounting platform 1 that the first end of spare part length direction corresponds, and the one end and the first arm 33 that compresses tightly of articulated elements 34 are articulated, and the other end and the second fixing base 31 hinge of articulated elements 34 are connected, and the fixed end fixed mounting who compresses tightly cylinder 32 is in the bottom surface of second fixing base 31, and the flexible end of compressing tightly cylinder 32 is vertical upwards to be articulated with the one end of first compressing arm 33, and the one end that compresses tightly cylinder 32 was kept away from to first compressing arm 33 is used for compressing tightly the bottom surface in the first end of lower lamellar body 200.

From this setting, in the initial state, the flexible end that compresses tightly cylinder 32 shortens, drive first compress tightly arm 33 and overturn for articulated elements 34, make first compress tightly arm 33 keep away from down lamellar body 200, after first support piece 2 was placed to lower lamellar body 200 level, compress tightly the flexible end extension of cylinder 32, drive first compress tightly arm 33 and overturn for articulated elements 34, make first compress tightly arm 33 towards lower lamellar body 200 direction upset, make first compress tightly arm 33 keep away from the one end that compresses tightly cylinder 32 and compress tightly the bottom in the lower lamellar body 200, under the cooperation of first support piece 2, realize that the first end of lower lamellar body 200 compresses tightly the location.

As some preferred embodiments, the second pressing assembly 6 is located at one end of the mounting platform 1 close to the supporting pressing assembly 5, the second pressing assembly 6 includes a turning cylinder 61 and a second pressing arm 62, the turning cylinder 61 is vertically and fixedly disposed on the mounting platform 1, one end of the second pressing arm 62 is rotatably connected to the turning cylinder 61, and the other end of the second pressing arm 62 is provided with a pressing piece 63 for respectively pressing two ends of the upper sheet 100 in the length direction. The second pressing arm 62 can be driven by the turning cylinder 61 to turn over the surface of the upper sheet 100, so that the two pressing pieces 63 on the second pressing arm 62 respectively press the two ends of the upper sheet 100 in the length direction.

In order to facilitate the installation of the first supporting member 2, in this embodiment, a third fixing seat 7 is further fixedly disposed on the installation platform 1 between the first pressing component 3 and the second pressing component 6, and the first supporting member 2 is horizontally disposed along the top surface of the third fixing seat 7 at intervals. With this arrangement, the bottom surface of the lower sheet 200 can be stably supported by the plurality of first support members 2 horizontally arranged.

In this embodiment, the upper sheet body 100 and the lower sheet body 200 are only positioned and clamped in the vertical direction, but the positioning is not performed in the horizontal direction, so that after the upper sheet body 100 and the lower sheet body 200 are assembled, a risk of horizontal misalignment exists, subsequent welding misalignment is caused, and parts do not meet welding requirements.

Therefore, as shown in fig. 7, in this embodiment, a positioning pin assembly 8 is further disposed at the bottom of the first support member 2, the positioning pin assembly 8 includes a jacking cylinder 81, a connecting plate 82 and a positioning rod 83, a fixing end of the jacking cylinder 81 is fixedly disposed at the bottom end of the third fixing seat 7, a telescopic end of the jacking cylinder 81 is vertically and upwardly fixedly connected with the connecting plate 82, the positioning rod 83 is at least provided with one positioning pin, the vertical fixing end of the positioning pin is disposed at the top end of the connecting plate 82, the positioning rod 83 penetrates through a positioning hole in the lower sheet body 200 and is abutted against the top surface in the upper sheet body 100, a positioning post 831 is disposed at the top end of the positioning rod 83 and is used for matching with the positioning hole in the upper sheet body 100, and the diameter of the positioning post 831 is smaller than that of the positioning rod 83.

From this setting, lower sheet 200 is when placing first support piece 2, pass locating lever 83 through the locating hole on the lower sheet 200, after lower sheet 200 horizontal installation is first support piece 2, compress tightly the bottom surface in the first end of lower sheet 200 through first pressure subassembly 3, positioner 55 enters into in lower sheet 200 this moment, install upper sheet 100 in upper sheet 100 top, and carry out the top surface support in the first end through second support piece 4, at this moment, drive locating lever 83 rebound through jacking cylinder 81, make locating column 831 at locating lever 83 top pass the locating hole on upper sheet 100, after realizing upper sheet 100 horizontal positioning, compress tightly upper sheet 100 through second pressure subassembly 6, positioner 55 moves down, when compressing tightly lower sheet 200, to the top surface support in the second end of upper sheet 100, at this moment, jacking cylinder 81 drives locating lever 83 upward movement, make the top of locating lever 83 support with the top surface in upper sheet 100, thereby avoid two pressure subassemblies to lead to the packing force on the upper sheet 100 to transship and lead to the packing force and warp upper sheet 100.

Above-mentioned locating pin subassembly 8's setting can realize going up lamellar body 100 and lower lamellar body 200 horizontal direction location, guarantees that lamellar body 100 and lower lamellar body 200 do not take place relative displacement at the horizontal direction, can support last lamellar body 100 middle part simultaneously, avoids two to compress tightly the subassembly and transships the pressing force of going up lamellar body 100 and lead to going up lamellar body 100 to warp

The utility model discloses a theory of operation is:

when placing first support piece 2, lower sheet 200 passes locating lever 83 through the locating hole on lower sheet 200, after lower sheet 200 is horizontally installed on first support piece 2, lower sheet 200 is located in the horizontal direction, compress tightly the bottom surface in the first end of lower sheet 200 through first compressing assembly 3, positioner 55 enters into lower sheet 200 under the drive of translation cylinder 52 this moment, install upper sheet 100 above upper sheet 100, and carry out the top surface support in the first end through second support piece 4, at this moment, drive locating lever 83 rebound through jacking cylinder 81, make locating column 831 on locating lever 83 top pass the locating hole on upper sheet 100, realize upper sheet 100 horizontal positioning, rethread second compressing assembly 6 compresses tightly upper sheet 100, positioner 55 moves down, when compressing down sheet 200, top surface support in the second end of upper sheet 100, realize upper sheet 100 and lower sheet 200 fine positioning in the vertical direction, at this moment, locating lever 81 drives locating lever 83 to rebound, make the top of locating lever 83 and upper sheet 100 and lower sheet 100 carry out accurate positioning, thereby the assembly of jacking cylinder 200 and lower sheet 100 and accurate locating of the top surface support in the vertical direction.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding and positioning tool for automobile parts comprises an installation platform (1), a first supporting piece (2), a first pressing component (3), a second supporting piece (4) and a second pressing component (6);

the first supporting piece (2) is fixedly arranged on the mounting platform (1) and is used for supporting the lower sheet body (200);

the first pressing component (3) is fixedly arranged on the mounting platform (1) and is used for pressing the first end of the part in the length direction to the lower sheet body (200);

the second supporting piece (4) is fixedly arranged on the mounting platform (1) and is used for supporting the upper sheet body (100) at the first end of the part in the length direction;

the second pressing component (6) is fixedly arranged on the mounting platform (1) and is used for pressing the upper sheet body (100);

the method is characterized in that: the pressing device further comprises a supporting and pressing assembly (5) which is used for supporting the upper sheet body (100) on the second end of the length direction of the part and pressing the lower sheet body (200) at the same time.

2. The automobile part welding positioning tool of claim 1, characterized in that: the supporting and pressing assembly (5) comprises a first fixed seat (51), a translation cylinder (52), a mounting frame (53), a movable piece (54) and a positioning device (55);

the first fixing seat (51) is vertically fixed at one end, far away from the first pressing component (3), of the mounting platform (1) in the length direction;

the fixed end of the translation cylinder (52) is fixedly arranged on the first fixed seat (51), and the telescopic end of the translation cylinder (52) horizontally extends towards the first pressing assembly (3);

the mounting frame (53) is fixedly connected with the telescopic end of the translation cylinder (52), and a mounting opening (531) is horizontally formed in one side, far away from the translation cylinder (52), of the mounting frame (53);

the moving piece (54) is arranged in the mounting opening (531) and can move up and down along the mounting opening (531) relative to the mounting frame (53);

the positioning device (55) is fixedly connected with one side, far away from the mounting frame (53), of the movable piece (54), and the thickness of the positioning device (55) is matched with the assembly distance between the upper sheet body (100) and the lower sheet body (200).

3. The automobile part welding positioning tool of claim 2, characterized in that: a sliding rail (532) is vertically arranged in the mounting opening (531), one surface, far away from the positioning device (55), of the movable piece (54) is connected with the sliding rail (532) in a sliding mode through a sliding block (533), and an elastic piece (56) is arranged between the movable piece (54) and the bottom of the mounting opening (531).

4. The automobile part welding positioning tool of claim 3, characterized in that: and the bottom surface of the movable piece (54) and the bottom surface of the mounting opening (531) are respectively provided with a mounting hole for mounting the elastic piece (56).

5. The automobile part welding positioning tool of claim 2, characterized in that: the positioning device (55) comprises a fixing block (551), a first positioning block (552) and a second positioning block (553), wherein the fixing block (551) is fixedly installed on one side, away from the installation frame (53), of the moving piece (54), the first positioning block (552) is horizontally detachably installed on the top surface of the fixing block (551) and used for contacting the inner top surface of the upper sheet body (100), and the second positioning block (553) is horizontally detachably installed on the bottom surface of the fixing block (551) and used for contacting the inner bottom surface of the lower sheet body (200).

6. The automobile part welding positioning tool of claim 1, characterized in that: first compress tightly subassembly (3) including second fixing base (31), compress tightly cylinder (32), first compress tightly arm (33) and articulated elements (34), second fixing base (31) fixed mounting is on mounting platform (1) that the first end of spare part length direction corresponds, the one end and the first arm (33) hinge that compresses tightly of articulated elements (34) are connected, the other end and the second fixing base (31) hinge of articulated elements (34), the stiff end fixed mounting who compresses tightly cylinder (32) is in second fixing base (31) bottom surface, the vertical one end hinge who upwards compresses tightly arm (33) of the flexible end that compresses tightly cylinder (32), the one end that compresses tightly cylinder (32) is kept away from in first arm (33) is used for compressing tightly the interior bottom surface of lower lamellar body (200).

7. The automobile part welding positioning tool of claim 1, characterized in that: the second compresses tightly subassembly (6) and is located mounting platform (1) and is close to the one end that supports and compress tightly subassembly (5), the second compresses tightly subassembly (6) and compresses tightly arm (62) including upset cylinder (61) and second, the vertical fixed setting of upset cylinder (61) is on mounting platform (1), and the one end that the second compressed tightly arm (62) rotates with upset cylinder (61) to be connected, and the other end that the second compressed tightly arm (62) is provided with and is used for compressing tightly piece (63) that compress tightly respectively last film thickness body (100) length direction both ends.

8. The automobile part welding positioning tool of claim 1, characterized in that: the mounting platform (1) between the first pressing component (3) and the second pressing component (6) is further fixedly provided with a third fixing seat (7), and the first supporting piece (2) is horizontally provided with a plurality of strips at intervals along the top surface of the third fixing seat (7).

9. The automobile part welding positioning tool of claim 8, characterized in that: first support piece (2) bottom still is provided with locating pin subassembly (8), locating pin subassembly (8) are including jacking cylinder (81), connecting plate (82) and locating lever (83), the fixed setting in third fixing base (7) bottom of stiff end of jacking cylinder (81), the vertical upwards and connecting plate (82) fixed connection of flexible end of jacking cylinder (81), locating lever (83) are provided with one at least, its vertical fixed setting is on connecting plate (82) top, locating lever (83) pass down the locating hole on lamellar body (200) to top surface counterbalance in with last lamellar body (100), locating lever (83) top is provided with reference column (831) for with the locating hole cooperation on last lamellar body (100), the diameter of reference column (831) is less than the diameter of locating lever (83).