CN211192811U - Positioning and assembling device for rear longitudinal arm of automobile - Google Patents

Abstract

The utility model relates to an automobile manufacturing process equips the field, more specifically relates to a location assembly quality who is used for trailing arm behind car. The device includes the workstation and sets up location frock, electronic equipment of screwing up on the workstation, still includes mutual sliding fit's slide rail and slide in addition, and the slide rail level is fixed in the workstation, electronic equipment of screwing up is fixed in the slide to along the slide rail along the back and forth slip, be used for assembling the work piece on the location frock. The number of the positioning tools is two or more, the positioning tools are sequentially arranged in a straight line, and the adjacent positioning tools are uniformly spaced; the straight line of the slide rail is parallel to the straight lines of all the working positions. The utility model discloses fix a position back trailing arm, integration operations such as fixed, assembly, moreover, a plurality of back trailing arm location or assembly can go on simultaneously, effectively reduce downtime latency, improve production efficiency.

Description

Positioning and assembling device for rear longitudinal arm of automobile

Technical Field

The utility model relates to an automobile manufacturing process equips the field, more specifically relates to a location assembly quality who is used for trailing arm behind car.

Background

In the automobile chassis structure, a rear longitudinal arm assembly is an important component of the current automobile chassis, and the structural form, rigidity and strength of the rear longitudinal arm assembly have great influence on the durability, comfort and controllability of the whole automobile. The back trailing arm mainly comprises arm end and face end, as shown in fig. 4, arm end, face end all are equipped with a plurality of locating holes, in order to be convenient for assemble back trailing arm whole, generally need earlier to fix a position and fix arm end, the face end of back trailing arm, use again to tighten up equipment to assemble its spare part. At present, a common production mode is that one tool corresponds to one screwing mechanism, and the screwing mechanism is fixed in position and is not easy to move, so that flexible operation is not convenient. And in production, the rear longitudinal arm is positioned firstly, then the tightening mechanism is used for assembling, finally the assembled rear longitudinal arm is disassembled, and the operation is circulated one by one. In addition, the existing positioning tool is simple, the positioning precision is low, the dislocation is easy to generate during operation, the pressing mechanism needs to be manually operated to compress, and the working efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned prior art the defect, provide a positioning assembly device for trailing arm behind car, fix a position, integration operations such as fixed, assembly back trailing arm, moreover, a plurality of back trailing arm location or assembly can go on simultaneously, effectively reduce downtime latency, improve production efficiency.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model provides a location assembly quality for trailing arm behind car, includes the workstation and sets up location frock, the electronic equipment of screwing up on the workstation. The device still includes sliding rail and slide of sliding fit each other, and the slide level is fixed in the workstation, electronic tightening equipment is fixed in the slide to along the slide back and forth slip along the slide, be used for assembling the work piece on the location frock. Wherein, the workstation mainly plays the fixed action, and each part all sets up on the workstation, makes things convenient for whole transport and shifts. The sliding rail and the sliding seat are mainly used for realizing flexible movement of the electric tightening equipment so as to be convenient for assembly. The electric tightening device in the technical scheme is the existing common tightening device, and can be any device capable of realizing the tightening and assembling functions, such as a tightening machine, a tightening shaft and the like, and the details are not described here.

Preferably, the number of the positioning tools is two or more, the positioning tools are sequentially arranged in a straight line, and the adjacent positioning tools are uniformly spaced; the straight line of the slide rail is parallel to the straight lines of the tools. A plurality of positioning tools are arranged on the workbench, when one tool is used for assembling the rear longitudinal arm, the rear longitudinal arm can be positioned on another tool at the same time, the electric tightening equipment completes the assembly of the first rear longitudinal arm and can move to another rear longitudinal arm to assemble immediately, and therefore the shutdown time of the electric tightening equipment is effectively shortened and the production efficiency is improved.

Preferably, the length of the slide rail is larger than or equal to the distance between the head positioning tool and the tail positioning tool. In order to meet the moving range of the electric tightening equipment, the workpieces of the positioning tools are operated, and the moving distance of the electric tightening equipment is not less than the distance between the head positioning tool and the tail positioning tool.

Preferably, the slide rail is located directly over the positioning tool. Slide rail, slide. The electric tightening equipment is located right above the positioning tool.

Preferably, the positioning tool comprises a positioning mechanism and a clamping mechanism, and the positioning mechanism comprises a positioning support and a supporting support which are adjacently arranged;

the middle part of the positioning support is left empty, one side of the positioning support is provided with a positioning cylinder, the positioning cylinder is connected with a positioning pin for positioning the arm end of the rear longitudinal arm, and the positioning cylinder drives the positioning pin to movably penetrate through the arm end of the rear longitudinal arm and to be fixed to the other side of the positioning support, so that the arm end of the rear longitudinal arm is fixed;

a space is reserved in the middle of the supporting support, the top surface of the supporting support is an inclined surface, through holes are reserved in the diagonal positions of the top surface, positioning columns are arranged in the through holes in at least one group of diagonal positions, and the positioning columns are used for positioning the end faces of the rear longitudinal arms;

clamping mechanism includes mount, die clamping cylinder, drive assembly and briquetting, and the mount sets up around the support outside, and the mount top surface is located to die clamping cylinder, die clamping cylinder's expansion end linkage drive assembly drives the briquetting motion, and the activity compresses tightly back trailing arm face end, realizes that back trailing arm face end is fixed.

Generally, the arm end and the face end of the rear trailing arm are both provided with a plurality of positioning holes, the face end is an inclined plane matched with the assembly of an automobile body, the rear trailing arm is designed to have a fixed size for a product, and the inclination of the face end of the rear trailing arm is different for rear trailing arms of different specifications. The positioning tool is used for positioning and fixing the rear longitudinal arm and then carrying out the next step of assembly. The positioning support pushes the positioning pin through the positioning cylinder, so that the positioning pin penetrates through the positioning hole at the arm end of the rear trailing arm, and fixation is achieved. In addition, the supporting support is correspondingly matched with the positioning holes at the opposite angles of the surface end of the rear longitudinal arm by utilizing the positioning columns at the opposite angles of the top surface for positioning. After the location, control clamping mechanism again and compress tightly back trailing arm face end, compress tightly fixedly the face end of back trailing arm promptly, avoid taking place the shake when the assembly, accomplish the location of back trailing arm fixed.

Preferably, the inclination of the top surface of the support bracket matches the inclination of the trailing arm face end. Because the rear trailing arm specification that different automobile model required is different, consequently the face end inclination of rear trailing arm also has the difference, in order to fix a position accurately, needs to ensure that the inclination of support top surface and the inclination of rear trailing arm face end match.

Preferably, the top surface of the fixing frame is parallel to the top surface of the supporting seat. In order to facilitate the clamping mechanism to compress from top to bottom, the top surface of the fixing frame is parallel to the top surface of the supporting support.

Preferably, the number of the clamping mechanisms is two or more, and the clamping mechanisms are arranged corresponding to the positioning columns of the supporting support. Generally, it is necessary to position and compress at least a set of angular positions of the face ends to avoid vibrational displacement during assembly.

In addition, the number of the clamping mechanisms can be four, and each clamping mechanism is correspondingly arranged at the diagonal position of the support. The positioning device can be used for positioning and pressing rear longitudinal arms of different vehicle types, diagonal position points needing to be positioned can be switched, positioning points are switched by moving the positioning columns to different through holes, the four set clamping mechanisms can be started, and the clamping mechanisms corresponding to the points are utilized for pressing. A single operation enables at least a minimum of two clamping mechanisms 2, i.e. a minimum of one on each side.

Preferably, the positioning mechanism further comprises an auxiliary support, wherein the auxiliary support is U-shaped, is arranged between the supporting support and the positioning support and is used for guiding and cushioning the rear trailing arm. Because the arm end of the rear longitudinal arm has a certain length, when the positioning and fixing are carried out, the auxiliary support is used for placing the pad, the arm end guide of the rear longitudinal arm is limited, and the left-right swinging is avoided.

Compared with the prior art, the beneficial effects of the utility model are that: 1) meanwhile, a plurality of positioning tools are arranged, the electric tightening equipment can slide and move, and components on the tools are assembled in sequence, so that the downtime of the electric tightening equipment is effectively shortened, and the production efficiency is improved; 2) the positioning tool is reliable in positioning, the rear longitudinal arm is positioned in a positioning mode through the positioning pin and the positioning column and matched with the clamping mechanism, the workpiece is prevented from moving in a staggered mode during assembly, the consistency and the stability of the assembly quality are guaranteed, and favorable conditions are created for the combination of the chassis and the vehicle body; 3) the clamping mechanism with the air cylinder as power is used for clamping, so that the clamping time of manual operation is greatly saved, the assembly efficiency is improved, the automation degree is improved, and the labor intensity of personnel is reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a front view of the overall structure of the present invention.

Fig. 3 is a side view of the overall structure of the present invention.

Fig. 4 is a schematic view of a conventional rear trailing arm structure.

Fig. 5 is a first schematic view of the positioning tool.

Fig. 6 is a schematic view of a positioning tool.

Fig. 7 is a top view of the positioning tool.

Fig. 8 is a schematic view of the positioning support structure.

Fig. 9 is a first structural diagram of the support pedestal.

Fig. 10 is a schematic view of a support pedestal structure II.

Fig. 11 is a schematic view of the clamping mechanism.

Fig. 12 is an exploded view of the clamping mechanism assembly.

The device comprises a workbench 1, a positioning tool 2, an electric tightening device 3, a sliding rail 4, a sliding seat 5, a clamping mechanism 21, a positioning support 22, a supporting support 23, an auxiliary support 24, a fixing frame 211, a clamping cylinder 212, a transmission assembly 213, a pressing block 214, a positioning cylinder 221, a positioning pin 222, a through hole 231, a positioning column 232, a support 2131, a first connecting rod 2132, a second connecting rod 2133, a strut 2134, a bump 2135, a rear longitudinal arm end 61, a rear longitudinal arm end 62 and a positioning hole 63.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example 1

As shown in fig. 1 to 3, the embodiment provides a positioning and assembling device for a rear trailing arm of an automobile, which includes a workbench 1, a positioning tool 2 arranged on the workbench 1, and an electric tightening device 3. The 2 quantity of location frock of this embodiment are two, and each location frock 2 is the straight line and arranges in proper order, and adjacent interval is even. The electric tightening device 3 in this embodiment is a tightening spindle of the existing brand name, ESTIC, EH 2-R2180-A.

The device also comprises a sliding rail 4 and a sliding seat 5 which are in sliding fit with each other, wherein the sliding rail 4 is horizontally fixed on the workbench 1, the sliding rail 4 is positioned right above the positioning tool 2, and the straight line of the sliding rail is parallel to the straight lines of the positioning tools. Meanwhile, the electric tightening equipment 3 is fixed on the sliding seat 5 and slides back and forth along the sliding rail 4 along with the sliding seat 5, so that the workpiece on the positioning tool 2 can be assembled. Specifically, in order to ensure that the electric tightening device 3 has sufficient movement space, the length of the slide rail 4 is set to be larger than or equal to the distance between the head and the tail of the two positioning tools 2.

When the electric tightening equipment 3 assembles the rear longitudinal arm on one of the positioning tools 2, the other rear longitudinal arm can be positioned on the other positioning tool 2 at the same time, and after the electric tightening equipment 3 completes the assembly of the first rear longitudinal arm, the electric tightening equipment can slide to the position right above the other rear longitudinal arm along the slide rail 4 through the slide seat 5 to be assembled, so that the cycle operation is realized, the downtime of the electric tightening equipment 3 is effectively shortened, and the production efficiency is improved.

Further, as shown in fig. 5 to 7, the positioning tool 2 includes a positioning mechanism and a clamping mechanism 21. Specifically, the positioning mechanism includes a positioning support 22 and a supporting support 23 that are adjacently disposed, in this embodiment, the positioning support 22 and the supporting support 23 are both symmetrical structures, and the symmetry axes thereof are located on the same straight line.

The middle of the positioning support 22 is left empty, one side of the positioning support 22 is provided with a positioning cylinder 221, the positioning cylinder 221 is connected with a positioning pin 222 for positioning the rear trailing arm end 61, when positioning is performed, the positioning cylinder 221 drives the positioning pin 222 to penetrate through the positioning hole 63 of the rear trailing arm end 61 and fix the positioning pin to the other side of the positioning support 22, and the rear trailing arm end 61 is fixed, as shown in fig. 4 and 8.

In addition, as shown in fig. 9-10, the supporting seat 23 has a hollow middle portion, a top surface thereof is an inclined surface, through holes 231 are provided at diagonal positions of the top surface, in this embodiment, a set of through holes 231 at diagonal positions are provided with positioning posts 232, and the positioning posts 232 correspond to the positioning holes 63 of the rear trailing arm face end 62 for positioning the face end of the rear trailing arm. It should be noted that, since the specifications of the rear trailing arm are different for different automobile models, the slope of the face end of the rear trailing arm is also different, and for accurate positioning, it is necessary to ensure that the slope of the top surface of the support bracket 23 matches the slope of the face end 62 of the rear trailing arm.

Meanwhile, as shown in fig. 11, the clamping mechanism 21 includes a fixed frame 211, a clamping cylinder 212, a transmission assembly 213 and a pressing block 214, the fixed frame 211 is disposed around the outer side of the supporting seat 23, the top surface of the fixed frame 211 is parallel to the top surface of the supporting seat 23, the clamping cylinder 212 is disposed on the top surface of the fixed frame 211, the movable end of the clamping cylinder 212 is linked with the transmission assembly 213 to drive the pressing block 214 to move, and the rear trailing arm face end 62 is movably pressed to fix the rear trailing arm face end 62.

Specifically, as shown in fig. 12, the transmission assembly 213 includes a support 2131, a first link 2132, a second link 2133 and a support 2134, the support 2131 is locked and fixed to the fixing frame 211, one end of the first link 2132 and one end of the second link 2133 are both hinged to the movable end of the clamping cylinder 212, the other end of the first link 2132 is hinged to the support 2131, the other end of the second link 2133 is hinged to the middle of the support 2134, the first link 2132 and the second link 2133 are parallel, and the hinge point of the first link 2132 and the support 2131 is lower than the hinge point of the second link 2133 and the support 2134.

Meanwhile, the supporting rod 2134 is perpendicular to the first connecting rod 2132, one end of the supporting rod 2134 is connected with the pressing block 214, the other end of the supporting rod 2134 is hinged and fixed to the support 2131, and a hinge point of the supporting rod 2134 and the support 2131 and a hinge point of the supporting rod 2134 and the second connecting rod 2133 are located on the same horizontal line. The support 2131, the first connecting rod 2132, the second connecting rod 2133 and the support 2134 are linked by a hinge-lever structure principle, the clamping cylinder 212 is started, the movable end pulls the first connecting rod 2132 and the second connecting rod 2133, the second connecting rod 2133 drives the support 2134, and the support 2134 rotates by taking a hinge point of the end part of the support 2131 as a fulcrum to drive the pressing block 214 to compress or loosen.

The second link 2133 is further provided with a projection 2135 for pressing the strut 2134, the projection 2135 faces the pressing block 214, and as shown in fig. 2, the projection 2135 presses the strut 2134 forward, and when the mechanism is pressed, the projection 2135 applies pressing force to the strut 2134, thereby realizing pressing.

After the positioning of the rear trailing arm is finished, the clamping mechanism 21 using the clamping cylinder 212 as power compresses the positioned rear trailing arm face end 82, and the positioning and fixing of the rear trailing arm are finished. In this embodiment, the number of the clamping mechanisms 21 is four, and each clamping mechanism 21 is correspondingly disposed at a diagonal position of the support base 23. The rear trailing arms of different vehicle types can be positioned and compressed, and at least two clamping mechanisms 2 are started in a single operation, namely, one clamping mechanism is used at least at one side.

Specifically, the positioning mechanism further comprises an auxiliary support 24, wherein the auxiliary support 24 is U-shaped and is arranged between the support 23 and the positioning support 22, and the center of the auxiliary support is positioned on the same straight line with the measure axes of the support 23 and the positioning support 22 and used for guiding and cushioning the trailing arm.

The use process of the positioning tool 2 is as follows: in use, the support bracket 23 which is matched with the inclination of the rear trailing arm face end 62 to be assembled is firstly determined, and the support bracket 23 is fixedly installed on the workbench 1. Then, the rear trailing arm is placed on the auxiliary bracket 24, the rear trailing arm end 61 is clamped on the positioning support 22, the positioning cylinder 221 is started, and the positioning pin 222 is pushed to penetrate through the positioning hole 63 of the rear trailing arm end 61, thereby positioning and fixing the arm end. Finally, the positioning hole 63 of the rear trailing arm face end 62 is positioned corresponding to the positioning post 232 of the support 23. After positioning is finished, the clamping mechanism 21 at the diagonal position of the positioning column 232 is controlled, the clamping cylinder 212 is started, the movable end of the clamping cylinder is linked with the transmission assembly 213, the pressing block 214 is driven to move, the pressing block 214 presses the surface end at the diagonal position of the rear longitudinal arm, positioning and fixing of the rear longitudinal arm are finished, displacement of the rear longitudinal arm during subsequent assembly is avoided, and positioning accuracy is improved.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (9)

1. The utility model provides a location assembly quality for trailing arm behind car, includes workstation (1) and sets up location frock (2), electronic equipment (3) of screwing up on workstation (1), its characterized in that: still including sliding rail (4) and slide (5) of mutual sliding fit, slide (4) level is fixed in workstation (1), electronic equipment (3) of screwing up is fixed in slide (5) to slide along slide (4) is made a round trip along slide (5) for assemble the work piece on location frock (2).

2. The positioning and assembling device for the rear trailing arm of the automobile as claimed in claim 1, wherein: the number of the positioning tools (2) is two or more, the positioning tools (2) are sequentially arranged in a straight line, and the adjacent positioning tools are uniformly spaced; and the straight line where the sliding rail (4) is located is parallel to the straight line where each tool is located.

3. The positioning and assembling device for the rear trailing arm of the automobile as claimed in claim 2, wherein: the length of the slide rail (4) is larger than or equal to the distance between the head positioning tool and the tail positioning tool (2).

4. The positioning and assembling device for the rear trailing arm of the automobile as claimed in claim 3, wherein: the slide rail (4) is located right above the positioning tool (2).

5. The positioning and assembling device for the rear trailing arm of the automobile as claimed in claim 1, wherein: the positioning tool (2) comprises a positioning mechanism and a clamping mechanism (21), and the positioning mechanism comprises a positioning support (22) and a supporting support (23) which are adjacently arranged;

the middle of the positioning support (22) is left empty, one side of the positioning support (22) is provided with a positioning cylinder (221), the positioning cylinder (221) is connected with a positioning pin (222) used for positioning the rear trailing arm end (61), the positioning cylinder (221) drives the positioning pin (222) to movably penetrate through the rear trailing arm end (61) and is fixed to the other side of the positioning support (22), and the rear trailing arm end (61) is fixed;

the middle part of the support (23) is left empty, the top surface of the support is an inclined surface, through holes (231) are reserved at the diagonal positions of the top surface, positioning columns (232) are arranged in the through holes (231) at least one group of diagonal positions, and the positioning columns (232) are used for positioning the rear longitudinal arm surface end (62);

clamping mechanism (21) include mount (211), die clamping cylinder (212), drive assembly (213) and briquetting (214), mount (211) set up around supporting support (23) outside, and mount (211) top surface is located in die clamping cylinder (212), the expansion end linkage drive assembly (213) of die clamping cylinder (212) drives briquetting (214) motion, and the activity compresses tightly back trailing arm face end (62), realizes that back trailing arm face end (62) are fixed.

6. The positioning and assembling device for the rear trailing arm of the automobile as claimed in claim 5, wherein: the inclination of the top surface of the support (23) is matched with the inclination of the rear trailing arm surface end (62).

7. The positioning and assembling device for the rear trailing arm of the automobile as claimed in claim 6, wherein: the top surface of the fixed frame (211) is parallel to the top surface of the supporting support (23).

8. The positioning and assembling device for the rear trailing arm of the automobile as claimed in claim 7, wherein: the number of the clamping mechanisms (21) is two or more, and the clamping mechanisms are arranged corresponding to the diagonal positions of the supporting supports (23).

9. The positioning and assembling device for the rear trailing arm of the automobile as claimed in claim 8, wherein: the positioning mechanism further comprises an auxiliary support (24), wherein the auxiliary support (24) is U-shaped and is arranged between the supporting support (23) and the positioning support (22) and used for guiding and cushioning the rear longitudinal arm.

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