An automobile rear subframe straightening detection tool

Abstract

A kind of automobile rear subframe shape correction detection tool, including shaping table, a pair of end positioning seat, bushing positioning seat are respectively provided on shaping table, a pair of end portion pressurizing cylinder, bushing pressurizing cylinder, a pair of X-axis shaping oil cylinder, a pair of Y-axis shaping oil cylinder, a pair of bushing hole shaping oil cylinder and Z-axis shaping oil cylinder, a group of pass-stop gauge is respectively provided on shaping table at workpiece bushing and lug;The utility model has the advantages that: positioning and fast clamping are realized by product bushing hole, deformed position is corrected by hydraulic oil cylinder, operation is simple, and it can ensure that blank piece after shaping is qualified, meets the machining need's margin, greatly improves product qualification rate and machining efficiency, reduces product production cost.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing equipment technology, specifically to a tooling for calibrating and inspecting the rear subframe of an automobile. Background Technology

[0002] Currently, Al-Si alloy subframes are mainly available in two types: split and integral. Both split and integral castings are highly susceptible to deformation during casting, placement, and subsequent heat treatment. This leads to issues such as thin walls, misaligned holes, and lack of surface finish during machining, impacting processing efficiency and wasting costs. Existing technologies can only reduce deformation during heat treatment; they cannot effectively correct deformation that has already occurred before heat treatment. Utility Model Content

[0003] The purpose of this utility model is to address the above-mentioned shortcomings by providing a tooling for the calibration and testing of a car rear subframe.

[0004] This utility model includes a straightening table, on which are respectively provided a pair of end positioning seats, a bushing positioning seat, a pair of end clamping cylinders, a bushing clamping cylinder, a pair of X-axis straightening cylinders, a pair of Y-axis straightening cylinders, a pair of bushing hole straightening cylinders and a Z-axis straightening cylinder. A set of go and no-go gauges are respectively provided on the straightening table located at the workpiece bushing and lug.

[0005] A pair of end clamping cylinders are located on one side of the corresponding end positioning seat, and a bushing clamping cylinder is located on one side of the bushing positioning seat. Both end positioning seats are equipped with X-axis positioning screws, and one of the end positioning seats is equipped with a Y-axis positioning screw.

[0006] A pair of end positioning seats are symmetrically mounted on the calibration table. The end positioning seats are provided with positioning grooves. A pair of X-axis positioning screws are respectively mounted on one side of the corresponding end positioning seats through connecting seats.

[0007] A pair of X-axis alignment cylinders, a pair of Y-axis alignment cylinders, and a pair of bushing hole alignment cylinders are symmetrically mounted on the alignment table. The piston rods of the X-axis alignment cylinders and the bushing hole alignment cylinders are provided with vertical sliding grooves, and U-shaped correction plates with downward openings are slidably connected in the vertical sliding grooves.

[0008] The Z-axis alignment cylinder is installed at the bottom of the alignment table opposite to the bushing positioning seat. A alignment seat extending into the top of the alignment table is detachably connected to the piston rod of the Z-axis alignment cylinder, and an alignment rod is movably connected to the alignment seat.

[0009] The piston rod of the Z-axis straightening cylinder is equipped with a slide block, the bottom of the straightening seat is equipped with a slider that cooperates with the slide block, and the top of the straightening seat is equipped with a straightening rod mounting hole, on which the straightening rod is movably inserted.

[0010] The go / no-go gauge located at the workpiece lug is movably mounted on the calibration table via a hinge support.

[0011] The advantages of this utility model are: positioning and quick clamping are achieved through the product bushing hole, and the deformed parts are corrected through the hydraulic cylinder. The operation is simple, and it can ensure that the blank after correction is qualified, meet the processing requirements, greatly improve the product qualification rate and machining efficiency, and reduce the product manufacturing cost. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the end positioning seat structure.

[0014] Figure 3 This is a schematic diagram of the Z-axis alignment cylinder in its extended state.

[0015] Figure 4 This is a schematic diagram of the structure of this utility model in use. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0018] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model. Furthermore, if terms such as "first" or "second" appear in the description of this utility model, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0019] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] As shown in the attached figure, this utility model includes a straightening table 1, on which a pair of end positioning seats 2, a bushing positioning seat 3, a pair of end clamping cylinders 4, a bushing clamping cylinder 5, a pair of X-axis straightening cylinders 6, a pair of Y-axis straightening cylinders 7, a pair of bushing hole straightening cylinders 8 and a Z-axis straightening cylinder 9 are respectively provided. A set of go and no-go gauges 10 are respectively provided on the straightening table 1 located at the workpiece bushing and lug.

[0021] A pair of end clamping cylinders 4 are located on one side of the corresponding end positioning seat 2, and a bushing clamping cylinder 5 is located on one side of the bushing positioning seat 3. Each pair of end positioning seats 2 is provided with an X-axis positioning screw 11, and one of the end positioning seats 2 is provided with a Y-axis positioning screw 12.

[0022] The rear subframe of the automobile mentioned below is referred to as the workpiece. The workpiece in this case has a left-right symmetrical structure. In this case, the bushing positioning seat 3 is located on the lower left of the calibration table 1, the Z-axis calibration cylinder 9 is located on the lower right of the calibration table 1, a pair of end positioning seats 2 are located on the upper left and upper right of the calibration table 1 respectively, and the Y-axis positioning screw 12 is installed on the end positioning seat 2 located on the upper right.

[0023] The workpiece is positioned and supported by three points: a pair of end positioning seats 2 and a bushing positioning seat 3. A pair of X-axis positioning screws 11 lock the workpiece from the X-axis direction, and a pair of Y-axis positioning screws 12 lock the workpiece from the Y-axis direction. Then, a pair of end clamping cylinders 4 and bushing clamping cylinders 5 clamp and fix the workpiece downward from the Z-axis direction.

[0024] In this case, both the end clamping cylinder 4 and the bushing clamping cylinder 5 are lever cylinders. The figure shown is a schematic diagram and does not represent the final form of the cylinder.

[0025] A pair of X-axis straightening cylinders 6 and a pair of Y-axis straightening cylinders 7 are activated to straighten the overall frame of the workpiece from the X-axis and Y-axis directions respectively. The go / no-go gauge 10 located at the lower left detects the deformation of the corresponding bushing. Then, the bushing hole straightening cylinder 8 at the lower left is activated to straighten the bushing at the lower left.

[0026] Similarly, the deformation of the corresponding bushing is detected by the go / no-go gauge 10 at the lower right, and then the bushing hole straightening cylinder 8 at the lower right is activated to straighten the bushing at the lower right.

[0027] The Z-axis straightening cylinder 9 is activated to straighten the bushing in the lower right direction along the Z-axis. The go / no-go gauge 10, located at the lug, inspects the two lugs of the workpiece. After the entire straightening process is completed, any parts that are still deformed are straightened a second time using a pair of X-axis straightening cylinders 6 and a pair of Y-axis straightening cylinders 7 until the workpiece meets the standard.

[0028] Preferably, a pair of end positioning seats 2 are symmetrically mounted on the calibration table 1. The end positioning seats 2 are provided with positioning grooves, and a pair of X-axis positioning screws 11 are respectively mounted on one side of the corresponding end positioning seats 2 through connecting seats 13.

[0029] The top cross-section of the positioning groove is L-shaped, meaning that the two adjacent inner sides are open. After the end of the workpiece is placed in the positioning groove, it is positioned by the L-shaped side wall. The X-axis positioning screw 11 and the Y-axis positioning screw 12 clamp the end of the workpiece horizontally from the inside. Then, a pair of end clamping cylinders 4 clamp the end of the workpiece from the top.

[0030] Preferably, a pair of X-axis alignment cylinders 6, a pair of Y-axis alignment cylinders 7, and a pair of bushing hole alignment cylinders 8 are symmetrically mounted on the alignment table 1. The piston rods of the X-axis alignment cylinders 6 and the bushing hole alignment cylinders 8 are provided with vertical sliding grooves, and a U-shaped correction plate 15 with an opening facing downwards is slidably connected in the vertical sliding grooves.

[0031] The U-shaped correction plate 15 is a movable part. When the workpiece is positioned and installed, the U-shaped correction plate 15 is removed from the vertical slide. After the workpiece is positioned, the U-shaped correction plate 15 is inserted into the vertical slide, with the bottom opening inserted into the workpiece. The workpiece is then shaped horizontally by driving the corresponding hydraulic cylinder.

[0032] Furthermore, the Z-axis alignment cylinder 9 is installed at the bottom of the alignment table 1 opposite to the bushing positioning seat 3. The piston rod of the Z-axis alignment cylinder 9 is detachably connected to an alignment seat 16 extending into the top of the alignment table 1, and an alignment rod 17 is movably connected to the alignment seat 16.

[0033] In this case, the Z-axis alignment cylinder 9 and the lower right bushing hole alignment cylinder 8 work together to align the bushing at the lower right of the workpiece. Therefore, during horizontal alignment, the alignment rod 17 is removed, and the Z-axis alignment cylinder 9 controls the alignment seat 16 to retract downwards, making room for the bushing hole. This allows the U-shaped correction plate 15 of the lower right bushing hole alignment cylinder 8 to extend into the bushing hole for alignment. After horizontal alignment is completed, the corresponding U-shaped correction plate 15 is removed, and then the Z-axis alignment cylinder 9 controls the alignment seat 16 to extend upwards into the bushing hole. The alignment rod 17 is then inserted into the alignment seat 16, positioned above the bushing. The Z-axis alignment cylinder 9 then moves up and down to align the bushing in the Z-axis direction.

[0034] Furthermore, the piston rod of the Z-axis alignment cylinder 9 is provided with a slide block 18, the bottom of the alignment seat 16 is provided with a slider that cooperates with the slide block 18, the top of the alignment seat 16 is provided with an alignment rod mounting hole, and the alignment rod 17 is movably inserted into the alignment rod mounting hole.

[0035] Both the alignment base 16 and the alignment rod 17 are movable parts, which facilitates position adjustment and installation / removal.

[0036] Preferably, the go / no-go gauge 10 located at the workpiece lug is movably mounted on the alignment table 1 via a hinge support 20. When the workpiece is installed, positioned, or removed, the go / no-go gauge 10 at the lug can be flipped outward to avoid the installation path of the workpiece, facilitating quick installation and removal.

Claims

1. A tooling for calibrating and inspecting the rear subframe of an automobile, characterized in that... The device includes a calibration table (1), on which are provided a pair of end positioning seats (2), a bushing positioning seat (3), a pair of end clamping cylinders (4), a bushing clamping cylinder (5), a pair of X-axis calibration cylinders (6), a pair of Y-axis calibration cylinders (7), a pair of bushing hole calibration cylinders (8) and a Z-axis calibration cylinder (9). A set of go and no-go gauges (10) are provided on the calibration table (1) located at the workpiece bushing and lug. A pair of end clamping cylinders (4) are located on one side of the corresponding end positioning seat (2), and a bushing clamping cylinder (5) is located on one side of the bushing positioning seat (3). Both of the pair of end positioning seats (2) are provided with X-axis positioning screws (11), and one of the pair of end positioning seats (2) is provided with a Y-axis positioning screw (12).

2. The automotive rear subframe calibration and inspection fixture according to claim 1, characterized in that... A pair of end positioning seats (2) are symmetrically installed on the alignment table (1). The end positioning seats (2) are provided with positioning grooves. A pair of X-axis positioning screws (11) are respectively installed on one side of the corresponding end positioning seats (2) through connecting seats (13).

3. The automotive rear subframe calibration and inspection fixture according to claim 1, characterized in that... A pair of X-axis alignment cylinders (6), a pair of Y-axis alignment cylinders (7) and a pair of bushing hole alignment cylinders (8) are symmetrically mounted on the alignment table (1). The piston rods of the X-axis alignment cylinders (6) and the bushing hole alignment cylinders (8) are provided with vertical sliding grooves, and U-shaped correction plates (15) with downward openings are slidably connected in the vertical sliding grooves.

4. The automotive rear subframe calibration and inspection fixture according to claim 1, characterized in that... The Z-axis alignment cylinder (9) is installed at the bottom of the alignment table (1) opposite to the bushing positioning seat (3). The piston rod of the Z-axis alignment cylinder (9) is detachably connected to an alignment seat (16) extending into the alignment table (1). An alignment rod (17) is movably connected to the alignment seat (16).

5. The automotive rear subframe calibration and inspection fixture according to claim 4, characterized in that... The piston rod of the Z-axis straightening cylinder (9) is provided with a slide (18), the bottom of the straightening seat (16) is provided with a slider that cooperates with the slide (18), the top of the straightening seat (16) is provided with a straightening rod mounting hole, and the straightening rod (17) is movably inserted into the straightening rod mounting hole.

6. The automotive rear subframe calibration and inspection fixture according to claim 1, characterized in that... The go / no-go gauge (10) located at the workpiece lug is movably mounted on the alignment table (1) via the hinge support (20).

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