Longitudinal beam assembly testing fixture

Abstract

The utility model relates to the technical field of automobile part detection tools, in particular to a longitudinal beam assembly detection tool, which comprises a detection table and an end limiting assembly fixed on the detection table. The end part limiting assembly comprises a base fixed on the detection table, a sliding rail fixed on the base, a sliding block connected to the sliding rail in a sliding manner, a sliding plate fixed on the sliding block, a middle arm fixed on the sliding plate and a positioning block fixed at the end part of the middle arm; a limiting block is further fixed to the base, upward bosses are arranged at the two ends of the limiting block, limiting holes are formed in the bosses, a transverse protrusion is arranged on the edge of the sliding plate, a limiting rod is arranged on the transverse protrusion, and the limiting rod can be inserted into the limiting holes in the bosses to lock the position of the sliding plate. According to the detection tool, the end limiting structure is arranged, so that the longitudinal beam is accurately and stably positioned during detection, the position of the longitudinal beam on the detection table is prevented from deviating, accurate detection of the hole site is realized, and the consistency and the accuracy of the detection result are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile part testing fixture, concretely is longitudinal beam assembly testing fixture. BACKGROUND

[0002] The automobile rear longitudinal beam is an important supporting part of the vehicle body bottom structure, is located at the two sides of the vehicle rear chassis, extends along the vehicle body longitudinal direction, and extends from the vicinity of the rear bumper of the vehicle to the rear axle or rear suspension connecting part. When the vehicle is subjected to rear-end collision, the rear longitudinal beam will undergo controllable deformation according to the designed mode, and a large amount of collision energy is absorbed through its plastic deformation, so as to effectively slow down the collision impact, thereby reducing the risk of serious injury to the passengers in the vehicle.

[0003] There are various types of holes on the rear longitudinal beam, such as mounting positioning holes, weight reduction holes, process holes, etc. These holes play a key role in the assembly, performance and safety of the vehicle. In order to ensure the assembly quality, safety performance and other requirements, it is necessary to use detection tools to detect the position accuracy of various holes. For example, the prior art "Automobile left rear longitudinal beam assembly testing fixture" (publication number: CN210293027U) can support the automobile left rear longitudinal beam assembly at the bottom through the first end support assembly, the middle support assembly, the arm support assembly and the second end support assembly, support the automobile left rear longitudinal beam assembly at the side through the side limiting assembly, and press and fix the automobile left rear longitudinal beam assembly through the top pressing assembly, so as to detect the holes on the automobile left rear longitudinal beam assembly with detection pins. However, the prior art still has the following technical problems:

[0004] The prior art realizes the position positioning of the longitudinal beam on the testing fixture through the bottom support assembly and the side support assembly respectively. However, due to the length of the longitudinal beam, as well as the gap between the positioning pins on the bottom support assembly and the side support assembly and the positioning holes on the longitudinal beam, and the self-error of the positioning pins and the positioning holes during processing and manufacturing, the bottom support assembly and the side support assembly cannot effectively limit the length direction of the longitudinal beam after the longitudinal beam is placed on the testing fixture. The longitudinal beam may be shifted in the length direction, and during detection, some detection pins may not be accurately inserted into the corresponding hole positions on the longitudinal beam, affecting the detection result. UTILITY MODEL CONTENTS

[0005] The utility model provides longitudinal beam assembly testing fixture, can solve the problem that the testing fixture in the prior art cannot effectively limit the length direction of the longitudinal beam, so that the detection pin may not be inserted into the corresponding hole position on the longitudinal beam due to the shift of the longitudinal beam on the detection table during detection, thereby affecting the accuracy of the detection result.

[0006] The application provides the following technical scheme: a longitudinal beam assembly testing fixture, comprising a testing table and an end limiting assembly fixed on the testing table, wherein the end limiting assembly comprises a base fixed on the testing table, a sliding rail fixed on the base, a sliding block slidingly connected to the sliding rail, a sliding plate fixed on the sliding block, a middle arm fixed on the sliding plate, and a positioning block fixed at the end of the middle arm.

[0007] A limiting block is further fixed on the base, the two ends of the limiting block are provided with upward protrusions, limiting holes are arranged on the protrusions, the edge of the sliding plate is provided with a transverse protrusion, a limiting rod is arranged on the transverse protrusion, and the limiting rod can be inserted into the limiting hole on the protrusion to lock the position of the sliding plate.

[0008] Beneficial effects:

[0009] 1. Precise limiting of the longitudinal beam and improvement of detection accuracy The positioning block is fixed at the end of the connecting arm and can extend into the recess hole at the end of the longitudinal beam and contact the end in the recess hole, thereby precisely limiting the position of the longitudinal beam in the length direction, preventing the position of the longitudinal beam on the testing table from deviating during detection, enabling the detection pin to be smoothly inserted into the corresponding hole position on the longitudinal beam, achieving accurate detection of the hole position, avoiding detection errors caused by inaccurate positioning, and improving the consistency and accuracy of the detection results.

[0010] 2. Improvement of the positioning stability of the longitudinal beam and guarantee of the accuracy of the detection results When the sliding plate is moved to the appropriate position, the limiting rod is inserted into the limiting hole, the position of the sliding plate is effectively locked, the end surface of the positioning block can abut against the end of the longitudinal beam, displacement of the longitudinal beam during detection due to external force is prevented, the positioning stability of the longitudinal beam is improved, the longitudinal beam does not deviate during detection, and the accuracy of the detection results is ensured.

[0011] Further, the base is further provided with a constraint assembly located away from the positioning block, the constraint assembly comprises a T-shaped block fixed on the base and a blocking block fixed on the T-shaped block, and when the blocking block abuts against the transverse protrusion, the limiting hole on the protrusion is aligned with the limiting rod on the transverse protrusion.

[0012] Beneficial effects: In actual operation, simply relying on manual movement of the sliding plate and alignment of the limiting hole and the limiting rod may have certain errors. The constraint assembly can automatically guide the sliding plate to the accurate position by tightly abutting the blocking block against the transverse protrusion, ensure that the limiting rod can be accurately inserted into the limiting hole, thereby reliably locking the position of the sliding plate, reducing the operation difficulty, and improving the work efficiency.

[0013] Further, a limiting block is further fixed on the base, and the limiting block is fixed at the two ends of the sliding rail.

[0014] Beneficial effect: limit block is used to prevent the slider from moving excessively on the slide rail, avoid the slider from leaving the slide rail, and buffer the impact force when the slider approaches the two ends of the slide rail, reduce the vibration and shaking caused by the impact of the slider on the end of the slide rail.

[0015] Further, the detection platform is further provided with a detection assembly, which comprises a positioning seat fixed on the detection platform, a turnover block pivotally connected to the positioning seat, a detection block fixed at the end of the turnover block, and a turnover handle fixed above the turnover block, the top end of the positioning seat is provided with a groove, the turnover block is located in the groove, and the two sides of the turnover block are pivotally connected to the two side walls in the groove at the top end of the positioning seat; a guide hole is formed in the end of the detection block.

[0016] Beneficial effect: the rotation of the turnover block can be controlled by the turnover handle, so as to adjust the detection block to the corresponding detection position on the longitudinal beam or exit the detection position, the guide hole provides a guide path for the detection tool, which can accurately align the detection tool with the detected hole, and the detection tool can detect the position accuracy of the hole on the torsion box along the guide hole, avoiding the detection deviation caused by improper tool operation.

[0017] Further, the side surface of the top end of the positioning seat is further provided with a locking pin, one end of the locking pin vertically extends into the groove from the outside of the top end of the positioning seat, and the other end of the locking pin is fixed with a locking handle.

[0018] Beneficial effect: the locking pin is controlled by rotating the locking handle, so that the end surface of the locking pin extending into the groove at the top of the positioning seat can contact the side surface of the turnover block, so as to abut against the turnover block and lock the turnover block, ensuring that the turnover block is stably fixed at the required position during detection and will not rotate accidentally, thereby ensuring the accuracy and stability of detection.

[0019] Further, the detection platform is further provided with a pressing assembly, the pressing assembly comprises a supporting seat fixed on the detection platform, a fixing piece fixed on the supporting seat, a connecting arm pivotally connected to one end of the fixing piece, a swing handle pivotally connected to the end of the connecting arm, and a connecting link pivotally connected between the swing handle and the other end of the fixing piece.

[0020] Beneficial effect: the swing handle and the connecting arm form a labor-saving lever structure, the swing force of the swing handle is transmitted to the connecting arm to control the flexible swing of the connecting arm, so that the connecting arm can be controlled to realize the pressing operation by swinging the handle and applying a small force, thereby reducing the operation difficulty.

[0021] Further, a pressing arm is arranged below the connecting arm, one end of the pressing arm is connected with a screw rod, a strip-shaped hole is formed in the middle of the connecting arm, the upper end of the screw rod penetrates into the strip-shaped hole, and the screw rod is locked on the connecting arm through a nut and a gasket.

[0022] Beneficial effects: By loosening the nut and moving the screw within the slotted hole, and then tightening the nut, the position of the clamping arm can be precisely adjusted. This allows the clamping arm to better adapt to workpieces of different shapes and sizes, ensuring effective clamping of the workpiece. For workpieces with irregular shapes, by adjusting the position of the clamping arm, the protrusion can better fit different parts of the workpiece surface, achieving uniform clamping. Attached Figure Description

[0023] Figure 1 This is an isometric view of the present invention.

[0024] Figure 2 for Figure 1 Axonometric view of the central longitudinal beam.

[0025] Figure 3 for Figure 1 Enlarged view of the mid-end limiting component.

[0026] Figure 4 for Figure 1 A magnified view of the detection component.

[0027] Figure 5 for Figure 1 A magnified view of the central clamping component. Detailed Implementation

[0028] The following detailed description illustrates the specific implementation method:

[0029] The markings in the accompanying drawings include: detection table 1, detection component 2, positioning seat 201, flip block 202, flip handle 203, detection block 204, locking handle 205, locking pin 206, longitudinal beam 3, recessed hole 301, end limiting component 4, positioning block 401, intermediate arm 402, sliding handle 403, slide plate 404, slider 405, slide rail 406, limiting block 407, base 408, T-block 409, blocking block 410, boss 411, limiting block 412, transverse protrusion 413, limiting rod 414, pressing component 5, support seat 501, swing handle 502, connecting arm 503, connecting arm 504, screw 505, nut 506, washer 507, pressing arm 508, and fixing component 509.

[0030] Example 1

[0031] like Figures 1 to 5 As shown, the longitudinal beam assembly inspection fixture includes an inspection table 1 and inspection components 2, clamping components 5, and end limiting components 4, all of which are fixed on the inspection table 1.

[0032] like Figure 3As shown, the end limiting assembly 4 comprises a base 408 fixed on the detection table 1, a sliding rail 406 fixed on the base 408, a sliding block 405 slidingly connected on the sliding rail 406, a sliding plate 404 fixed on the sliding block 405, an intermediate arm 402 fixed on the sliding plate 404, and a positioning block 401 fixed on the end of the intermediate arm 402; the positioning block 401 can be deeply inserted into Figure 2 The sliding plate 404 is provided with a sliding handle 403, and holding the sliding handle 403 can drive the entire sliding plate 404 to move on the sliding rail 406

[0033] The base 408 is further provided with a limiting block 412, the two ends of the limiting block 412 are provided with upward protrusions 411, the protrusions 411 are provided with limiting holes, the edge of the sliding plate 404 is provided with a transverse protrusion 413, the transverse protrusion 413 is integrally formed with the sliding plate 404, the transverse protrusion 413 is provided with a limiting rod 414, the limiting rod 414 is shaped as a circular plate and a circular rod fixed at the center of the circular plate, the circular plate is convenient for the operator to hold, and the circular rod can be inserted into the limiting hole on the protrusion 411 to lock the position of the sliding plate 404. Figure 3 The positioning block 401 is in the state of being inserted into the recessed hole 301 of the longitudinal beam 3, and the limiting rod 414 is inserted into the limiting hole to lock the sliding plate 404.

[0034] The base 408 is further provided with a limiting block 412, the two ends of the limiting block 412 are provided with upward protrusions 411, the protrusions 411 are provided with limiting holes, the edge of the sliding plate 404 is provided with a transverse protrusion 413, the transverse protrusion 413 is integrally formed with the sliding plate 404, the transverse protrusion 413 is provided with a limiting rod 414, the limiting rod 414 is shaped as a circular plate and a circular rod fixed at the center of the circular plate, the circular plate is convenient for the operator to hold, and the circular rod can be inserted into the limiting hole on the protrusion 411 to lock the position of the sliding plate 404.

[0035] The base 408 is further provided with a limiting block 412, the two ends of the limiting block 412 are provided with upward protrusions 411, the protrusions 411 are provided with limiting holes, the edge of the sliding plate 404 is provided with a transverse protrusion 413, the transverse protrusion 413 is integrally formed with the sliding plate 404, the transverse protrusion 413 is provided with a limiting rod 414, the limiting rod 414 is shaped as a circular plate and a circular rod fixed at the center of the circular plate, the circular plate is convenient for the operator to hold, and the circular rod can be inserted into the limiting hole on the protrusion 411 to lock the position of the sliding plate 404. Figure 3 The limiting rod 414 is removed, the sliding handle is held to slide the entire sliding plate 404 backward, the transverse protrusion 413 is close to the end of the blocking block 410, the transverse protrusion 413 is aligned with the protrusion 411, and the limiting rod 414 is inserted into the limiting hole on the protrusion 411 to lock the position of the sliding plate 404.

[0036] As Figure 4As shown, the detection assembly 2 is provided with multiple, one of which is taken as structural illustration in the embodiment. The detection assembly 2 comprises a positioning seat 201 fixed on the detection table 1, a turnover block 202 pivotally connected to the positioning seat 201, a detection block 204 fixed at the end of the turnover block 202, and a turnover handle 203 fixed above the turnover block 202. The top end of the positioning seat 201 is provided with a recess, and the turnover block 202 is located in the recess, and the two sides of the turnover block 202 are pivotally connected to the two side walls in the recess at the top end of the positioning seat 201. A guide hole is formed in the end of the detection block 204. The side surface of the top end of the positioning seat 201 is also threadedly connected with a locking pin 206, one end of the locking pin 206 vertically extends into the recess from the outside of the top end of the positioning seat 201, and the other end of the locking pin 206 is fixed with a locking handle 205. The rotation of the turnover block 202 can be controlled through the turnover handle 203, so as to realize the adjustment of the detection block 204 to the corresponding detection position on the longitudinal beam 3 or the exit of the detection position. The guide hole provides a guide path for the detection tool, so that the detection tool can be accurately aligned with the detected hole. The locking pin 206 is controlled by rotating the locking handle 205, so that the end surface of the locking pin 206 extending into the recess at the top of the positioning seat 201 can contact the side surface of the turnover block 202, so as to realize the abutting of the turnover block 202 and lock the turnover block 202.

[0037] As shown in Figure 5 The pressing assembly 5 is provided with multiple, one of which is taken as structural illustration in the embodiment. The pressing assembly 5 comprises a support seat 501 fixed on the detection table 1, a fixing piece 509 fixed on the support seat 501, a connecting arm 504 pivotally connected to one end of the fixing piece 509, a swing handle 502 pivotally connected to the end of the connecting arm 504, and a connecting link arm 503 pivotally connected between the swing handle 502 and the other end of the fixing piece 509. The lower side of the connecting arm 504 is provided with a pressing arm 508, one end of the pressing arm 508 is connected with a screw rod 505, a strip-shaped hole is formed in the middle of the connecting arm 504, the upper end of the screw rod 505 is arranged in the strip-shaped hole, and the screw rod 505 is locked on the connecting arm 504 through a nut 506 and a gasket 507. Figure 5 The swing handle 502 in the connecting arm 504 is swung upward, so that the pressing arm 508 is lifted upward, and vice versa, the swing handle 502 is swung downward, and the pressing arm 508 is pressed downward. Figure 5 The pressing arm 508 is in a pressed state.

[0038] The use method of the present detection tool is as follows:

[0039] First, the pressing arm 508 of the pressing assembly 5 and the detection unit turnover block 202 are both in the state of being lifted upward, so as to facilitate the longitudinal beam 3 to be placed in the placement area in the middle of the detection table 1, the longitudinal beam 3 is positioned and fixed on the platform for positioning on the detection table 1, then the positioning block 401 of the end limiting assembly 4 is slid into the recessed hole 301 at the end of the longitudinal beam 3, the end face of the positioning block 401 abuts against the bottom surface in the recessed hole 301, and the limiting rod 414 is inserted into the limiting hole to lock the position of the positioning block 401; the pressing arm 508 of the pressing assembly 5 is controlled to press the longitudinal beam 3 downward, and the turnover block 202 of the detection assembly 2 is controlled to turn over downward, so that the guide hole on the detection block 204 is located at the corresponding detection position on the longitudinal beam 3, finally, the detection pin tool is used to pass through the guide holes on the detection block 204 in sequence to detect the position accuracy of each hole position on the longitudinal beam 3, after the detection is completed, the end limiting assembly 4, the pressing assembly 5 and the detection assembly 2 are reset, and then the longitudinal beam 3 can be taken off.

[0040] The above is only an embodiment of the utility model, the utility model is not limited to this embodiment case related field, the specific structure and characteristics and other common knowledge in the scheme are not described too much here. It should be pointed out that for those skilled in the art, without departing from the structure of the utility model, a number of deformations and improvements can be made, which should also be considered as the protection scope of the utility model, which will not affect the effect and practicality of the utility model. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A longitudinal beam assembly gauge, characterized by: The application relates to an end position limiting assembly fixed on a detection table, which comprises a base fixed on the detection table, a sliding rail fixed on the base, a sliding block slidingly connected to the sliding rail, a sliding plate fixed on the sliding block, a middle arm fixed on the sliding plate and a positioning block fixed on the end of the middle arm; a limiting block is further fixed on the base, the two ends of the limiting block are provided with upward protrusions, limiting holes are arranged on the protrusions, the edge of the sliding plate is provided with a transverse protrusion, limiting rods are arranged on the transverse protrusion, and the limiting rods can be inserted into the limiting holes on the protrusions to lock the position of the sliding plate.

2. The stringer assembly gauge of claim 1, wherein: A constraint assembly is further arranged on the base and located on the side far away from the positioning block, the constraint assembly comprises a T-shaped block fixed on the base and a blocking block fixed on the T-shaped block, and when the blocking block abuts against the transverse protrusion, the limiting holes on the protrusions are aligned with the limiting rods on the transverse protrusion.

3. The stringer assembly gauge of claim 2, wherein: A limiting block is further fixed on the base and located on the two ends of the sliding rail.

4. The stringer assembly gauge of claim 3, wherein: A detection assembly is further fixed on the detection table, the detection assembly comprises a positioning seat fixed on the detection table, a turnover block pivotally connected to the positioning seat, a detection block fixed on the end of the turnover block and a turnover handle fixed above the turnover block, the top end of the positioning seat is provided with a groove, the turnover block is located in the groove, and the two sides of the turnover block are pivotally connected to the two side walls in the groove at the top end of the positioning seat; a guide hole is arranged on the end of the detection block.

5. The stringer assembly gauge of claim 4, wherein: A locking pin is further threadedly connected to the side of the top end of the positioning seat, one end of the locking pin vertically extends into the groove from the outside of the top end of the positioning seat, and the other end of the locking pin is fixed with a locking handle.

6. The stringer assembly gauge of claim 5, wherein: A pressing assembly is further arranged on the detection table, the pressing assembly comprises a supporting seat fixed on the detection table, a fixing piece fixed on the supporting seat, a connecting arm pivotally connected to one end of the fixing piece, a swing handle pivotally connected to the end of the connecting arm, and a connecting rod arm pivotally connected between the swing handle and the other end of the fixing piece.

7. The stringer assembly gauge of claim 6, wherein: A pressing arm is arranged below the connecting arm, one end of the pressing arm is connected with a screw rod, a strip-shaped hole is arranged in the middle of the connecting arm, the upper end of the screw rod is arranged in the strip-shaped hole, and the screw rod is locked on the connecting arm through a nut and a gasket.

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