Plate spring eye vertical parallelism detection device

Abstract

The utility model relates to the technical field of leaf spring eye detection, in particular to a leaf spring eye vertical parallelism detection device. Comprising a laser pen, two detection devices and two release limiting mechanisms, each of the two detection devices comprises an upper mounting plate, a cylinder body, an annular transparent shell, a centering mechanism and a limiting releasing mechanism; the limiting releasing mechanisms are used for driving the multiple inner movable plates on the centering mechanisms on the corresponding sides to synchronously approach inwards; the laser pen is mounted on the upper mounting plate on one side; and a round point is arranged on the upper mounting plate on the other side. According to the technical scheme, the vertical parallelism of the spring eye of the plate spring can be conveniently measured, and the two supporting devices and the two detection devices for measurement are of split structures, so that the occupied space of the equipment is reduced, and the transportation and the carrying are more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of steel plate spring eye detection, in particular to a plate spring eye vertical parallelism detection device. BACKGROUND

[0002] The steel plate spring is the most widely used elastic element in the automobile suspension, which is an approximately equal-strength elastic beam composed of a plurality of alloy spring sheets of equal width but different lengths (the thickness can be equal or not equal). After installation, the two ends are naturally curved upward. When the impact force of the road is transmitted to the wheel, the steel plate deforms, plays a buffering and damping role, and the eye of the steel plate spring is seriously stressed, which is a weak point. In the automobile spring production process, the eye ear is a key process. The vertical parallelism of the steel plate spring eye determines whether the subsequent assembly can proceed normally, and more likely affects the quality of the whole vehicle.

[0003] The patent with the authorized announcement number CN114111532B discloses a steel plate spring eye vertical parallelism detection device, which comprises two measurement single-body mechanisms, each of which comprises an eye axis positioning module and a measurement module. The upper side of the eye axis positioning module is fixed with a vertical rod, the top of the vertical rod is vertically fixed with a horizontal rod, and the measurement module is installed at the ends of the two horizontal rods.

[0004] The above-mentioned measurement device has the following technical defects: the length of the above-mentioned measurement device is equivalent to that of the plate spring eye, which occupies a large space and is not convenient to carry. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art and provides a plate spring eye vertical parallelism detection device.

[0006] The technical scheme of the utility model provides a plate spring eye vertical parallelism detection device, which comprises a laser pen, two supporting devices, two detection devices and two release limiting mechanisms.

[0007] Each of the two detection devices comprises an upper mounting plate, a cylinder, an annular transparent shell, a centering mechanism and a release limiting mechanism. The upper mounting plate is connected to the upper end of the cylinder, and a limiting frame is connected to the upper mounting plate. The annular transparent shell is arranged on the outer periphery of the upper mounting plate, the annular transparent shell is filled with colored liquid, and a horizontal scale line is arranged on the surface of the annular transparent shell. The centering mechanism comprises a plurality of elastic clamping assemblies, each of which comprises a clamping plate, an inner movable plate, a guide rod and a spring. The guide rod is movably penetrated through the inner and outer sides of the cylinder, and the inner and outer ends of the guide rod are connected with the inner movable plate and the clamping plate respectively. The spring is sleeved and installed on the outer periphery of the guide rod. The two release limiting mechanisms are used to drive the plurality of inner movable plates of the corresponding centering mechanism on one side to move inward synchronously. The laser pen is installed on one side of the upper mounting plate. A dot is arranged on the other side of the upper mounting plate.

[0008] Preferably, the supporting device comprises a base, a horizontal support arranged above the base, a first level gauge and a second level gauge respectively arranged on two adjacent sides of the horizontal support, and four adjusting devices respectively arranged at four corners of the horizontal support, wherein each of the adjusting devices comprises a screw rod and a knob, the screw rod is threadedly connected with the horizontal support, and the knob is arranged on an upper end of the screw rod.

[0009] Preferably, the elastic clamping assembly is provided with at least three groups.

[0010] Preferably, two releasing limiting mechanisms are respectively arranged on the two side detection devices, and each of the releasing limiting mechanisms comprises a movable rod, a push plate and a plurality of wedge-shaped blocks, the movable rod is movably arranged through the upper mounting plate and is vertically slidably connected with the upper mounting plate, the push plate is connected with an outer end of the movable rod, the plurality of wedge-shaped blocks are connected with an inner end of the movable rod, and the plurality of wedge-shaped blocks are arranged in one-to-one correspondence with the plurality of inner movable plates.

[0011] Preferably, a limiting ring is arranged on the guide rod adjacent to an inner side of one end of the cylinder, and a gap is formed between the limiting ring and the inner movable plate.

[0012] Preferably, a notch is formed in one side of a lower end of the limiting frame.

[0013] Compared with the prior art, the utility model has the beneficial technical effects that:

[0014] 1、The centering mechanism can quickly realize the centering of the cylinder and the eye, and then whether the eye is perpendicular to the horizontal plane can be judged by observing whether the liquid level of the colored liquid is flush with the horizontal line; whether the two eyes are parallel can be judged by observing the falling point position of the red light beam emitted by the laser pen; and the detection process is simple and the measurement steps are simplified through the above structure.

[0015] 2、The two supporting devices and the two detection devices are of a split structure, so that the occupied space of the equipment is reduced, and transportation and carrying are more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model.

[0017] Figure 2 It is a structural schematic view of the detection device in the utility model.

[0018] Figure 3 It is a sectional view of the detection device in the utility model.

[0019] Reference numerals: 1. Base; 2. Horizontal support; 3. Upper mounting plate; 31. Limiting frame; 311. Notch; 4. Cylinder; 5. Clamping plate; 6. Annular transparent shell; 7. Horizontal mark; 8. Laser pointer; 9. Guide rod; 10. Spring; 11. Movable rod; 12. Push plate; 13. Screw; 14. Knob; 15. Wedge block; 16. Inner movable plate; 17. First level; 18. Second level; 19. Limiting ring. Detailed Implementation

[0020] Example 1, as Figures 1-3 As shown in the figure, the leaf spring coil eye vertical parallelism detection device proposed in this embodiment includes a laser pointer 8, two support devices, two detection devices, and two release limiting mechanisms.

[0021] Both detection devices include an upper mounting plate 3, a cylinder 4, an annular transparent shell 6, a centering mechanism, and a release mechanism. The upper mounting plate 3 is connected to the upper end of the cylinder 4, and a limit frame 31 is connected to the upper mounting plate 3. A notch 311 is opened on one side of the lower end of the limit frame 31. Rotating the notch 311 to the side of the leaf spring makes the inner side of the notch contact the side of the leaf spring, thereby achieving horizontal angle limit of the detection device. The upper end of the notch 311 contacts the upper end of the leaf spring, thereby achieving height limit of the detection device. The annular transparent shell 6 is set on the outer periphery of the upper mounting plate 3. The annular transparent shell 6 is filled with a colored liquid, and a horizontal mark 7 is set on the surface of the annular transparent shell 6. The centering mechanism... The structure includes multiple sets of elastic clamping components, with at least three sets. Each set of elastic clamping components includes a clamping plate 5, an inner movable plate 16, a guide rod 9, and a spring 10. The guide rod 9 moves through the inner and outer sides of the cylinder 4, and its inner and outer ends are connected to the inner movable plate 16 and the clamping plate 5, respectively. The spring 10 is sleeved and installed on the outer periphery of the guide rod 9. A limiting ring 19 is provided on one end of the guide rod 9 near the inner side of the cylinder 4. There is a gap between the limiting ring 19 and the inner movable plate 16. The setting of the limiting ring 19 makes a certain gap between the inner movable plate 16 and the inner wall of the cylinder 4, so that the pointed part of the wedge block 15 can be easily inserted between the inner movable plate 16 and the inner wall of the cylinder 4.

[0022] The limit release mechanism is used to drive multiple inner movable plates 16 on the corresponding side centering mechanism to move inward synchronously; the two limit release mechanisms are respectively installed on the detection devices on both sides. The limit release mechanism includes a movable rod 11, a push plate 12 and multiple wedge blocks 15. The movable rod 11 movably passes through the upper mounting plate 3 and is vertically slidably connected to the upper mounting plate 3. The push plate 12 is connected to the outer end of the movable rod 11. The multiple wedge blocks 15 are all connected to the inner end of the movable rod 11. The multiple wedge blocks 15 are arranged one-to-one with the multiple inner movable plates 16.

[0023] The laser pointer 8 is mounted on the mounting plate 3 on one side; a dot is set on the mounting plate 3 on the other side. The laser pointer 8 emits a red beam of light towards the detection device on the other side. When the light spot falls on the dot, it proves that the two rolled ears are parallel; otherwise, the two rolled ears are not parallel.

[0024] Specifically, when inspecting the workpiece (leaf spring lug), place both ends of the workpiece on two support devices respectively, and ensure that the upper surfaces of the two support devices are horizontal before placing them.

[0025] The two detection devices are then installed. The cylinder 4 is aligned with the inner hole of the ear and the push plate 12 is pressed down, which drives multiple wedge blocks 15 to move downwards simultaneously. The inclined surface of the wedge block 15 presses the inner movable plate 16 towards the inner center of the cylinder 4, causing multiple clamping plates 5 to move inwards simultaneously, inserting the cylinder 4 into the inner hole of the ear. Then the push plate 12 is released, and the clamping plates 5 are reset under the elastic force of the spring 10. At this time, multiple clamping plates 5 are pressed against the inner wall of the ear, thus achieving the centering and alignment of the cylinder 4, making the cylinder 4 coaxial with the ear. Then the upper mounting plate 3 is rotated so that the limiting frame 31 contacts the side wall of the steel leaf spring, thereby positioning the horizontal rotation angle of the cylinder 4.

[0026] Finally, the operator observes whether the level of the colored liquid inside the annular transparent shell 6 is level with the horizontal mark 7. If it is level, it proves that the corresponding side of the rolled ear is perpendicular to the horizontal plane; otherwise, it proves that there is a processing error in the rolled ear. The laser pointer 8 is turned on, and the laser pointer 8 emits a red beam towards the detection device on the other side. When the light spot falls on the dot, it proves that the two rolled ears are parallel; otherwise, the two rolled ears are not parallel.

[0027] Example 2, as Figure 1 As shown, the leaf spring coil eye vertical parallelism detection device proposed in this embodiment, compared with the first embodiment, the support device in this embodiment includes a base 1, a horizontal support 2 and four adjustment devices. The horizontal support 2 is located above the base 1. A first level 17 and a second level 18 are respectively installed on the adjacent two sides of the horizontal support 2. The four adjustment devices are respectively distributed at the four corners of the horizontal support 2. Each of the four adjustment devices includes a screw 13 and a knob 14. The screw 13 is threadedly connected to the horizontal support 2, and the knob 14 is installed on the upper end of the screw 13.

[0028] In this embodiment, the operator can determine whether the upper surface of the horizontal support 2 is level by observing the second level 18 and the first level 17. If it is not level, the horizontal support 2 can be leveled by rotating the four screws 13 respectively.

[0029] The embodiment of the utility model is described in detail above in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A device for detecting the perpendicular parallelism of a plate spring eye, characterized in that The utility model relates to a kind of detection device for detecting the straightness of the laser pen, including: Two support devices; Two detection devices, two detection devices include upper mounting plate (3), cylinder (4), annular transparent shell (6), centering mechanism and release limiting mechanism;Upper mounting plate (3) is connected to the upper end of cylinder (4), and a limiting frame (31) is connected to the upper mounting plate (3);Annular transparent shell (6) is arranged on the outer periphery of the upper mounting plate (3), and annular transparent shell (6) is filled with colored liquid, and horizontal scale line (7) is arranged on the surface of annular transparent shell (6);The centering mechanism includes a plurality of elastic clamping assemblies, each elastic clamping assembly includes a clamping plate (5), an inner movable plate (16), a guide rod (9) and a spring (10), the guide rod (9) is movably penetrated through the inner and outer sides of the cylinder (4), the inner and outer ends of the guide rod (9) are connected with the inner movable plate (16) and the clamping plate (5) respectively, and the spring (10) is sleeved and installed on the outer periphery of the guide rod (9); Two release limiting mechanisms for driving a plurality of inner movable plates (16) on the corresponding side centering mechanism to move inward synchronously; A laser pen (8) is installed on one side of the upper mounting plate (3), and a dot is arranged on the other side of the upper mounting plate (3).

2. The device according to claim 1, wherein The support device includes a base (1), a horizontal support (2) and four adjusting devices, the horizontal support (2) is arranged above the base (1), first and second levels (17) and (18) are respectively installed on the adjacent two sides of the horizontal support (2), and the four adjusting devices are respectively distributed at the four corners of the horizontal support (2). Each of the four adjusting devices includes a screw rod (13) and a knob (14), the screw rod (13) is threadedly connected with the horizontal support (2), and the knob (14) is installed on the upper end of the screw rod (13).

3. The device according to claim 1, wherein The elastic clamping assembly is provided with at least three groups.

4. The device according to claim 3, wherein The two release limiting mechanisms are respectively installed on the two detection devices, and each release limiting mechanism includes a movable rod (11), a push plate (12) and a plurality of wedge blocks (15), the movable rod (11) is movably penetrated through the upper mounting plate (3) and is vertically and slidably connected with the upper mounting plate (3), the push plate (12) is connected with the outer end of the movable rod (11), the plurality of wedge blocks (15) are respectively connected with the inner end of the movable rod (11), and the plurality of wedge blocks (15) are respectively arranged corresponding to the plurality of inner movable plates (16).

5. The leaf spring coil eye perpendicularity parallelism detection device according to claim 1, characterized in that, A limiting ring (19) is arranged on the guide rod (9) adjacent to the inner side of the cylinder (4), and a gap exists between the limiting ring (19) and the inner movable plate (16).

6. The device of claim 1, wherein: A notch (311) is formed on one side of the lower end of the limiting frame (31).

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