CN212399363U - Positioning fixture for body-in-white - Google Patents

Abstract

The application discloses positioning fixture that white automobile body was used relates to white automobile body and measures technical field, and positioning fixture includes: the positioning component comprises a guide sleeve and a positioning pin, the guide sleeve is of a hollow columnar structure, the positioning pin is fixedly arranged at the top of the guide sleeve, and a notch communicated with the interior of the guide sleeve is formed in the side wall of the positioning pin; a clamping member including a hook pin and a drive assembly; the hook pin comprises a clamping part and a pin body, the clamping part is positioned in the notch, and the pin body is positioned in the guide sleeve; the driving component group is arranged on the side wall of the guide sleeve, is movably connected with the hook pin and is used for driving the hook pin to swing in the guide sleeve to the clamping part to extend out of the notch so as to clamp the body-in-white to be tested. The white automobile body positioning device is compact in structure, does not occupy space, and can realize reliable positioning of a white automobile body to be measured in a narrow space so as to guarantee the measurement precision of the white automobile body.

Description

Positioning fixture for body-in-white

Technical Field

The application relates to the technical field of body-in-white measurement, in particular to a positioning fixture for a body-in-white.

Background

In an automobile welding assembly production line, the assembly space on the production line is limited, so in the prior art, when people need to clamp a plate on the production line, the plate is clamped by additionally adding a large clamping device on the production line, and the commonly used clamping device is complex and high in cost.

Among the correlation technique, there is a location locking device for white automobile body is measured, which comprises a frame, the locating pin that sets up the white automobile body of being used for fixing a position in the frame with be long banding locking and collude the round pin, locking colludes the round pin and connects in the frame, the one end and the link mechanism swing joint of locking colluding the round pin, the locking colludes the round pin and can swing around colluding the round pin axle through link mechanism's effect locking, the other end of locking colluding the round pin has the locking piece of bending form, there is the base that leans on with white automobile body counterbalance bottom the locating pin, set up the groove that colludes that runs through on the lateral wall of locating pin, the locking piece can compress tightly the white automobile body that leans on with the base through the swing, still be equipped with in. The positioning and locking device has the advantages of good positioning effect, more stable white automobile body locking during working, accurate positioning, simple structure and convenient operation.

However, the part of the positioning and locking device for locking the locking hook pin is complex in structure and occupies a long space, and if the device has a small pressing space when a sheet metal part or other mechanisms exist, the scheme cannot be applied.

Therefore, it is our main purpose to develop a fixture suitable for vehicle body positioning measurement, which can be applied to the measurement after positioning and clamping the vehicle body in the environment with narrow space.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a positioning fixture for a body-in-white, which is compact in structure and does not occupy space, and can realize reliable positioning of the body-in-white to be measured in a narrow space so as to ensure the measurement precision of the body-in-white.

The embodiment of the application provides a positioning fixture that white automobile body was used, positioning fixture includes:

the positioning component comprises a guide sleeve and a positioning pin, the guide sleeve is of a hollow columnar structure, the positioning pin is fixedly arranged at the top of the guide sleeve, and a notch communicated with the interior of the guide sleeve is formed in the side wall of the positioning pin;

a clamping member including a hook pin and a drive assembly; the hook pin comprises a clamping part and a pin body, the clamping part is positioned in the notch, and the pin body is positioned in the guide sleeve; the driving component is assembled on the side wall of the guide sleeve, is movably connected with the hook pin and is used for driving the hook pin to swing in the guide sleeve until the clamping part extends out of the notch so as to clamp the body-in-white to be tested.

In this embodiment, preferably, a through guide groove is formed in a side wall of the guide sleeve, and a bent steering groove is formed on the hook pin; the drive assembly specifically includes:

the fixing pin transversely penetrates through the side wall of the guide sleeve and is fixedly connected with the guide sleeve, and the fixing pin can move in a reciprocating mode in the steering groove relative to the hook pin;

the movable pin is positioned below the fixed pin, transversely inserted on the hook pin and fixedly connected with the hook pin, and two ends of the movable pin are respectively arranged in the guide grooves and can move in the guide grooves;

the cam is positioned outside the guide sleeve and sleeved at the end part of the fixed pin, and the outer contour of the cam is contacted with the end part of the movable pin;

meanwhile, the cam rotates around the fixed pin and pushes the movable pin to move downwards in the guide groove, so that the hook pin swings in the guide sleeve until the clamping part extends out of the notch.

Preferably, the both ends of fixed pin are connected with one respectively the cam, two the cam links firmly through the connecting plate, drive assembly specifically still includes:

and one end of the cam handle is fixedly connected to the connecting plate.

Preferably, the body portion of the cam handle is bent.

Preferably, the cam has an elongated hole in which an end of the fixing pin is disposed.

Preferably, the positioning member further comprises:

the adjusting seat is arranged at the bottom of the guide sleeve; and one side of the adjusting seat close to the guide sleeve is provided with a track for the guide sleeve to rotate.

Preferably, the rail is a plurality of arc-shaped waist-shaped grooves distributed in an annular array.

Preferably, an elastic part is arranged on the adjusting seat in a penetrating mode, and when the hook pin abuts against the outside of the positioning component, the bottom of the hook pin is in contact with the elastic part and compresses the elastic part.

Preferably, a plurality of first fastening holes are formed in the adjusting seat, and the positioning member further specifically includes:

the support is provided with a plurality of second fastening holes and is fixed at the bottom of the adjusting seat through the second fastening holes and the first fastening holes, and the aperture of the first fastening holes is larger than that of the second fastening holes.

Preferably, the bottom of the positioning pin has an outward flange, and the positioning member further includes:

the positioning sleeve is sleeved on the periphery of the positioning pin and is fixedly connected with the guide sleeve through the flange; when the hook pin swings downwards, the clamping part extends out of the notch.

The beneficial effect that technical scheme that this application provided brought includes:

(1) the embodiment of the application provides a positioning fixture for a body-in-white, which is used for positioning the body-in-white to be detected through a positioning pin in a positioning component, and meanwhile, the clamping component with a compact structure is used for pushing a hook pin to swing in a guide sleeve to be in a locking state through the hook pin, so that the body-in-white to be detected is clamped to realize surface positioning of the body-in-white to be detected. This application embodiment compact structure can keep the locating component motionless when narrow and small space measures the body in white, and when the round pin location was in reliable and stable state promptly, further colludes the swing of round pin in the uide bushing and reach the purpose of the body in white that the centre gripping awaits measuring through using the drive assembly drive, improves the reliability of the face location of the body in white that awaits measuring, and its convenient operation.

(2) In this application embodiment, collude the round pin and form link structure with fixed pin, loose pin, form fixed movement track, when the loose pin removed extreme position along the guide way among the guide sleeve downwards, collude the round pin and also outwards swing the limit, and collude the round pin and mechanical dead point appears, at this moment, collude the clamping part of round pin and be used for locking to the restriction white automobile body that awaits measuring realizes the reliable stability of face location in planar motion.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a perspective view of a positioning jig for a body-in-white according to an embodiment of the present application;

FIG. 2 is a top view of an adjustment block in an embodiment of the present application;

FIG. 3 is a left side elevational view, in full section, of an adjustment block in an embodiment of the subject application;

FIG. 4 is a top view of a pedestal in an embodiment of the present application;

FIG. 5 is a left side elevational view, in full section, of a pedestal in an embodiment of the present application;

FIG. 6 is a perspective view of a locating pin in an embodiment of the present application;

FIG. 7 is a front view of a positioning fixture for body in white according to an embodiment of the present application in a clamped state;

FIG. 8 is a full sectional view taken along line A-A of FIG. 7;

FIG. 9 is a front view of a positioning clamp for a body-in-white according to an embodiment of the present application in an unclamped state;

FIG. 10 is a full sectional view taken along line B-B of FIG. 9;

in the figure: 1. a positioning member; 11. a guide sleeve; 111. a guide groove; 12. positioning pins; 120. a notch; 121. a flange; 13. an adjusting seat; 131. a track; 1310. an arc waist-shaped groove; 132. an elastic member; 133. a recessed groove; 134. a first fastening hole; 14. a support; 141. a second fastening hole; 142. a convex portion; 143. a kidney-shaped hole; 15. a positioning sleeve; 2. a clamping member; 21. hooking and pinning; 211. a clamping portion; 212. a steering groove; 22. a drive assembly; 221. a fixing pin; 222. a movable pin; 223. a cam; 224. a connecting plate; 225. a cam handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 and 6-10, an embodiment of the present application provides a positioning jig for a body-in-white, including:

the positioning component 1 comprises a guide sleeve 11 and a positioning pin 12, wherein the guide sleeve 11 is of a hollow columnar structure, the positioning pin 12 is fixedly arranged at the top of the guide sleeve 11, and a notch 120 communicated with the interior of the guide sleeve 11 is formed in the side wall of the positioning pin 12;

a clamping member 2 comprising a hooking pin 21 and a driving assembly 22; the hook pin 21 comprises a clamping part 211 and a pin body, the clamping part 211 is positioned in the notch 120, and the pin body is positioned in the guide sleeve 11; the driving assembly 22 is disposed on the side wall of the guide sleeve 11, movably connected to the hook pin 21, and configured to drive the hook pin 21 to swing in the guide sleeve 11 until the clamping portion 211 extends out of the notch 120, so as to clamp the body-in-white to be tested.

In the embodiment of the application, the working principle of the positioning clamp for the body-in-white is as follows:

firstly, in a positioning component 1, a positioning pin 12 is butted with a positioning hole of a body-in-white to be detected on a guide sleeve 11, so that the pin positioning of the positioning pin 12 on the body-in-white to be detected is realized; secondly, a force is applied to the driving component 22 outside the guide sleeve 11, the driving component 22 pushes the hook pin 21 to move downwards in the guide sleeve 11, the hook pin 21 is limited by the driving component 22, when the hook pin 21 moves outwards to the maximum position in the notch 120 of the positioning pin 12, at this time, the clamping part 211 of the hook pin 21 extends out of the notch 120, at this time, the part of the body-in-white to be measured, which needs to be subjected to surface positioning, is tightly clamped on the positioning clamp below the clamping part 211, and therefore the surface positioning of the body-in-white to-be-measured is achieved.

When it is necessary to release the body-in-white to be measured by the positioning jig, a force for releasing is applied to the driving unit 22 while the clamping member 2 is in the clamped state.

In the embodiment of the application, this positioning fixture can carry out round pin location and face location to the white automobile body that awaits measuring reliably and steadily, directly carry out the round pin location earlier, later exert a power to drive assembly 22 outside guide sleeve 11, collude round pin 21 and swing promptly in guide sleeve 11 to the white automobile body that the centre gripping awaits measuring and realize the face location, and then the six degrees of freedom of the white automobile body that the restriction awaits measuring, avoid the welding or the measuring error that the unstable results in of location, guarantee the welding or the measuring repeatability of white automobile body. The positioning device is compact in structure and simple and convenient to operate, and provides a stable and reliable positioning new scheme for a narrow positioning space of a body-in-white.

Furthermore, a through guide groove 111 is formed in the side wall of the guide sleeve 11, and a bent steering groove 212 is formed in the hook pin 21; the driving assembly 22 specifically includes:

a fixing pin 221 transversely penetrating through a side wall of the guide bush 11 and fixedly connected to the guide bush 11, the fixing pin 221 being reciprocally movable in the steering groove 212 with respect to the hook pin 21;

a movable pin 222 located below the fixed pin 221, transversely inserted on the hook pin 21, and fixedly connected with the hook pin 21, wherein two ends of the movable pin 222 are respectively disposed in the guide groove 111 and can move in the guide groove 111;

a cam 223 located outside the guide sleeve 11 and sleeved on the end of the fixed pin 221, wherein the outer contour of the cam 223 contacts with the end of the movable pin 222;

at the same time, the cam 223 rotates around the fixed pin 221 and pushes the movable pin 222 to move downward in the guide groove 111, so that the hook pin 21 swings in the guide sleeve 11 until the clamping portion 211 protrudes out of the notch 120.

In this embodiment, the size of the outer contour of the cam 223 contacting the movable pin 222 is designed according to the motion track of the hook pin 21, the hook pin 21 forms a link structure with the fixed pin 221 and the movable pin 222 to form a fixed motion track, therefore, when the movable pin 222 moves downwards along the guide groove 111 in the guide sleeve 11 to a limit position, the hook pin 21 also swings outwards to a limit, the hook pin 21 has a mechanical dead point, the clamping part 211 of the hook pin 21 extends out of the notch 120, and the space where the clamping part 211 is opposite to the positioning member 1 can clamp the white body to be measured.

Furthermore, two ends of the fixing pin 221 are respectively connected with one of the cams 223, the two cams 223 are fixedly connected through a connecting plate 224, the driving assembly 22 further includes a cam handle 225, and one end of the cam handle 225 is fixedly connected to the connecting plate 224.

In this embodiment, two ends of the fixing pin 221 are movably sleeved with one cam 223, and the two cams 223 rotate synchronously by using one cam handle 225, so that the locking and the releasing of the hook pin 21 can be controlled in a labor-saving manner by using the lever principle.

Further, the main body portion of the cam handle 225 is bent. The cam handle 225 of bending sets up suitable direction of bending and the angle of bending according to the narrow and small space of the white automobile body that awaits measuring according to local conditions, can be convenient for workman's handheld operation, improves workman's work efficiency.

Specifically, the cam 223 has an elongated hole in which an end of the fixing pin 221 is disposed. The cam 223 eccentrically rotates around the fixed pin 221, and can push the movable pin 222 to move.

As shown in fig. 2 to 3, as a preferred embodiment of the present application, the positioning member 1 further includes:

an adjusting seat 13 provided at the bottom of the guide sleeve 11; a track 131 for rotating the guide sleeve 11 is disposed on one side of the adjusting seat 13 close to the guide sleeve 11.

Further, the track 131 is a plurality of arc-shaped waist-shaped slots 1310 distributed in an annular array.

In the embodiment of the present application, the bottom of the guide sleeve 11 is provided with a first bolt hole adapted to the arc-shaped kidney-shaped groove 1310, and the arc-shaped kidney-shaped groove 1310 is further provided with a counter bore; the specific steps of mounting the guide sleeve 11 on the adjusting seat 13 are as follows: placing the guide sleeve 11 on the upper surface of the adjusting seat 13, and using a first bolt to penetrate through the rear part of the arc-shaped waist-shaped groove 1310 from the lower part of the adjusting seat 13 and be inserted into the first bolt hole, wherein at the moment, the guide sleeve 11 is not fixed on the adjusting seat 13; the guide sleeve 11 is rotated along the arc-shaped kidney-shaped groove 1310 in the rail 131 to a target direction according to the locking direction of the hook pin 21, and a first bolt is tightened so that the guide sleeve 11 is fixed on the adjustment seat 13, and the nut of the first bolt is located in the corresponding counter bore.

Furthermore, an elastic member 132 is inserted through the adjustment seat 13, and when the hook pin 21 abuts against the outside of the positioning member 1, the bottom of the hook pin 21 contacts with the elastic member 132, and compresses the elastic member 132. In this embodiment, the elastic member 132 is a spring, and the lower portion of the spring is fixedly received in the recess groove 133; when the hook pin 21 is in a release state, the top of the spring is separated from the bottom of the hook pin 21; when the hook pin 21 is in the clamping state, the top of the spring is in contact with the bottom of the hook pin 21 and is in a compressed state, and the compressed spring provides an accumulated force to keep the hook pin 21 in the clamping state.

As shown in fig. 4 to 5, further, the adjusting base 13 is provided with a plurality of first fastening holes 134, and the positioning member further includes:

and a support 14 having a plurality of second fastening holes 141, wherein the support 14 is fixed to the bottom of the adjustment seat 13 through the second fastening holes 141 and the first fastening holes 134, and the diameter of the first fastening holes 134 is larger than that of the second fastening holes 141.

Furthermore, two protrusions 142 are disposed on the edge of the support 14, and a waist-shaped hole 143 is further disposed on the protrusions 142. The two protrusions 142 are vertically disposed, the protrusions 142 are opposite to the side surface of the adjusting seat 13, and a third bolt hole is formed in the side surface of the adjusting seat 13, and the third bolt hole is matched with the kidney-shaped hole 143.

In the embodiment of the present application, the first fastening hole 134 has a larger diameter than the second fastening hole 141, and when the second bolt passes through the first fastening hole 134 and the second fastening hole 141 is not yet fastened, the adjustment seat 13 can move on the support 14 in a small range, and the third bolt passes through the kidney-shaped hole 143 and is connected to the corresponding third bolt hole, so that the movement direction of the adjustment seat 13 on the support 14 can be controlled according to the movement of the third bolt along the kidney-shaped hole 143.

Further, as shown in fig. 6, the bottom of the positioning pin 12 has an outward flange 121, and the positioning member further includes:

the positioning sleeve 15 is sleeved on the periphery of the positioning pin 12 and fixedly connected with the guide sleeve 11 through the flange 121; when the hook pin 21 swings downward, the clamping portion 211 protrudes out of the notch 120.

In the embodiment of the present application, the positioning sleeve 15 can be connected to the positioning pin 12 more stably and reliably, and at the same time, when the hook pin 21 is in the clamping state, the size of the clamping space of the clamping portion 211 can be adjusted according to the use of the positioning sleeve 15 with different thicknesses.

Further, the bottom of the support 14 can be provided with backing plates with different thicknesses according to actual requirements, so as to ensure the positioning reliability of the positioning pin 12. The backing plate can be arranged according to the related art, and the detailed description is not repeated.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A positioning jig for a body-in-white, characterized in that the positioning jig comprises:

the positioning component (1) comprises a guide sleeve (11) and a positioning pin (12), the guide sleeve (11) is of a hollow columnar structure, the positioning pin (12) is fixedly arranged at the top of the guide sleeve (11), and a notch (120) communicated with the interior of the guide sleeve (11) is formed in the side wall of the positioning pin (12);

a clamping member (2) comprising a hooking pin (21) and a driving assembly (22); the hook pin (21) comprises a clamping part (211) and a pin body, the clamping part (211) is positioned in the notch (120), and the pin body is positioned in the guide sleeve (11); the driving assembly (22) is arranged on the side wall of the guide sleeve (11) in a group, is movably connected with the hook pin (21) and is used for driving the hook pin (21) to swing in the guide sleeve (11) until the clamping part (211) extends out of the notch (120) so as to clamp a body-in-white to be tested.

2. The positioning jig for the vehicle body in white according to claim 1, wherein a through guide groove (111) is formed in a side wall of the guide sleeve (11), and a bent turning groove (212) is formed in the hook pin (21); the drive assembly (22) comprises in particular:

a fixing pin (221) which transversely penetrates through the side wall of the guide sleeve (11) and is fixedly connected with the guide sleeve (11), wherein the fixing pin (221) can move in a reciprocating manner in the steering groove (212) relative to the hook pin (21);

the movable pin (222) is positioned below the fixed pin (221), transversely inserted on the hook pin (21) and fixedly connected with the hook pin (21), and two ends of the movable pin (222) are respectively arranged in the guide groove (111) and can move in the guide groove (111);

a cam (223) which is positioned outside the guide sleeve (11) and is sleeved on the end part of the fixed pin (221), wherein the outer contour of the cam (223) is contacted with the end part of the movable pin (222);

meanwhile, the cam (223) rotates around the fixed pin (221) and pushes the movable pin (222) to move downwards in the guide groove (111), so that the hook pin (21) swings in the guide sleeve (11) until the clamping part extends out of the notch (120).

3. The positioning jig for vehicle bodies in white according to claim 2, wherein the fixing pin (221) has one of the cams (223) connected to each of both ends thereof, and the two cams (223) are fixedly connected by a connecting plate (224), and the driving unit (22) further comprises:

and a cam handle (225) having one end fixedly connected to the connecting plate (224).

4. The positioning jig for vehicle bodies in white according to claim 3, wherein the main body portion of the cam handle (225) is formed in a folded shape.

5. The jig for locating vehicle bodies in white according to claim 2, wherein the cam (223) has an elongated hole in which an end of the fixing pin (221) is disposed.

6. The positioning jig for a vehicle body in white according to claim 1, characterized in that the positioning member (1) further comprises:

an adjusting seat (13) arranged at the bottom of the guide sleeve (11); one side of the adjusting seat (13) close to the guide sleeve (11) is provided with a track (131) for the guide sleeve (11) to rotate.

7. The jig for locating vehicle bodies in white according to claim 6, wherein the rail (131) is a plurality of arcuate kidney grooves (1310) distributed in an annular array.

8. The positioning jig for a vehicle body in white according to claim 6, wherein an elastic member (132) is inserted into the adjustment seat (13), and when the hook pin abuts against the outside of the positioning member (1), the bottom of the hook pin (21) comes into contact with the elastic member (132) and compresses the elastic member (132).

9. The positioning jig for the body in white according to claim 6, wherein the adjusting seat (13) is provided with a plurality of first fastening holes (134), and the positioning member (1) further comprises:

the support (14) is provided with a plurality of second fastening holes (141), the support (14) is fixed at the bottom of the adjusting seat (13) through the second fastening holes (141) and the first fastening holes (134), and the aperture of the first fastening holes (134) is larger than that of the second fastening holes (141).

10. The positioning jig for body-in-white according to claim 1, characterized in that the bottom of the positioning pin (12) has an outward flange (121), the positioning member (1) further comprising:

the positioning sleeve (15) is sleeved on the periphery of the positioning pin (12) and is fixedly connected with the guide sleeve (11) through the flange (121); when the hook pin (21) swings downwards, the clamping part (211) extends out of the notch (120).

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