Rapid detection tool special for crankshaft

Abstract

The utility model provides a special rapid detection tool for a crankshaft, and belongs to the technical field of crankshaft detection. Comprising a box body, and two placing parts and a pressing part which are arranged at the top of the box body, each placing part comprises a bottom plate and a V-shaped block arranged at the top of the bottom plate; the pressing part comprises a locking screw rod arranged at the top of the box body, a pressing plate movably arranged on the locking screw rod in a sleeving manner, and a limiting device for limiting the pressing plate; the locking screw rod is arranged between the two V-shaped blocks; the two V-shaped blocks are arranged at the top of the box body, so that the crankshaft can be placed on the two V-shaped blocks; by arranging the pressing part comprising the locking screw rod, the pressing plate and the limiting device, the pressing plate can be pressed on the top of the crankshaft, and then the purpose of fixing the crankshaft on the box body is achieved; by arranging the box body, the crankshaft fixed on the placing part can rotate along with the box body by rotating the box body, so that the dimensions of the crankshaft in all directions can be measured conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft detection, in particular to a special quick detection tool for crankshafts. Background Art

[0002] The crankshaft is the main rotating part of the engine. After the connecting rod is installed, it can transform the up and down (reciprocating) motion of the connecting rod into a circular (rotating) motion. The crankshaft is an important part of the engine. It is made of carbon structural steel or ductile iron. It has two important parts, the main journal and the connecting rod journal. The main journal is installed on the cylinder block, the connecting rod journal is connected to the big end hole of the connecting rod, and the small end hole of the connecting rod is connected to the cylinder piston. It is a typical crank slider mechanism. The rotation of the crankshaft is the power source of the engine. It is also the source of power for the entire mechanical system.

[0003] After the crankshaft is produced, the dimensions in each direction need to be inspected to determine whether the crankshaft dimensions meet the requirements of the drawings. In the prior art, the crankshaft inspection tooling is mainly composed of a V-block and a dividing head. When using this type of tooling, it is necessary to clamp the crankshaft twice to obtain the inspection result: first, clamp the crankshaft on the V-block, adjust it, draw the center line, and detect the corresponding dimensions. Then take out the crankshaft, clamp it on the dividing head again, adjust and press it, use the dividing head to rotate, and detect the corresponding dimensions. Due to the use of two clamping and adjustment, the inspection speed is slow and the efficiency is low, making it difficult to obtain the inspection results in a short time. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a special quick detection tool for crankshafts, which adopts one-time clamping to meet the requirements of quick detection on the production site.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A crankshaft-specific rapid inspection tool comprises a box body, and two placement parts and a clamping part arranged on the top of the box body; each of the placement parts comprises a bottom plate and a V-shaped block arranged on the top of the bottom plate; the clamping part comprises a locking screw arranged on the top of the box body, a pressure plate movably sleeved on the locking screw, and a limiting device for limiting the pressure plate; the locking screw is arranged between the two V-shaped blocks.

[0007] In the above scheme, by arranging two placement parts including a bottom plate and a V-shaped block on the top surface of the box body, the crankshaft can be placed on the two V-shaped blocks to preliminarily limit the crankshaft; by arranging a clamping part including a locking screw, a pressure plate and a limiting device on the top surface of the box body, after the crankshaft is placed on the two V-shaped blocks, the pressure plate can be pressed on the top of the crankshaft, and the pressure plate can be pressed tightly onto the crankshaft through the limiting device, thereby achieving the purpose of fixing the crankshaft on the placement part; by setting up the box body, it is convenient to rotate the crankshaft fixed on the placement part by rotating the box body, thereby facilitating the measurement of the various dimensions of the crankshaft.

[0008] Through the coordinated action of the above-mentioned devices, the crankshaft can be quickly limited to the box body, and then the crankshaft can be quickly measured in all directions by rotating the box body.

[0009] Preferably, the limiting device comprises two first locking bolts arranged on the locking screw, and the pressure plate is arranged between the two first locking bolts.

[0010] In the above solution, the pressure plate can be fixed on the locking screw by providing two first locking bolts.

[0011] Preferably, the bottom end of the locking screw passes through the top wall of the box body and is fixed to the box body by two second locking bolts.

[0012] In the above solution, the locking screw can be fixed on the box body by providing the second locking bolt.

[0013] Preferably, a clamping screw is provided between the bottom plate and the box body.

[0014] In the above solution, the bottom plate can be fixed on the box body by arranging the clamping screws.

[0015] Preferably, a crowbar hole is provided on the side wall of the box body, and a crowbar can be used to flip the box body in the crowbar hole.

[0016] In the above scheme, by providing the crowbar hole and the crowbar, it is possible to facilitate the rotation of the box body, thereby facilitating the measurement of the crankshaft in all directions.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] By arranging two placement parts including a bottom plate and a V-shaped block on the top surface of the box body, the crankshaft can be placed on the two V-shaped blocks to preliminarily limit the crankshaft; by arranging a clamping part including a locking screw, a pressure plate and a limiting device on the top surface of the box body, after the crankshaft is placed on the two V-shaped blocks, the pressure plate can be pressed on the top of the crankshaft, and the pressure plate can be pressed tightly onto the crankshaft through the limiting device, thereby achieving the purpose of fixing the crankshaft on the placement part; by arranging the box body, it is convenient to rotate the crankshaft fixed on the placement part by rotating the box body, thereby facilitating the measurement of the various dimensions of the crankshaft.

[0019] Through the coordinated action of the above-mentioned devices, the crankshaft can be quickly limited to the box body, and then the crankshaft can be quickly measured in all directions by rotating the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model in the front view direction;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model viewed from the left;

[0022] Figure 3 This is a schematic diagram of the working structure of the utility model in a top view;

[0023] In the figure: 100-box, 110-bottom plate, 120-V-shaped block, 130-locking screw, 140-pressing plate, 150-first locking bolt, 160-second locking bolt, 170-pressing screw, 180-crowbar hole, 200-workpiece. DETAILED DESCRIPTION

[0024] Below in conjunction with the attached Figures 1 to 3 , the technical solutions in the embodiments of the utility model are clearly and completely described, but the protection scope of the utility model is not limited to the following.

[0025] Example 1

[0026] A special rapid inspection tool for crankshafts, such as Figure 1-3 As shown, it includes a box body 100, and two placement parts and a pressing part arranged on the top of the box body 100; Figure 1-3 As shown, each of the placement parts includes a bottom plate 110 and a V-shaped block 120 disposed on the top of the bottom plate 110; Figure 1-2 As shown, the pressing part includes a locking screw 130 disposed on the top of the box body 100, a pressing plate 140 movably sleeved on the locking screw 130, and a limiting device for limiting the pressing plate 140; the locking screw 130 is disposed between the two V-shaped blocks 120, but not on the center line of the two V-shaped plates. Figure 1-3As shown, the limiting device includes two first locking bolts 150 arranged on the locking screw 130 , and the pressing plate 140 is arranged between the two first locking bolts 150 .

[0027] Working principle: First, place the box 100 on the workbench for use. After the workpiece 200 (i.e., the crankshaft) is produced and cooled, use a tool to place it horizontally on two V-shaped blocks 120 (such as Figure 1-3 As shown in the figure, after adjusting the verticality with a height gauge using a crankshaft balance block, the workpiece 200 is firmly pressed on the box body 100 with a pressing plate 140, a locking nut and a locking screw 130, and then a quick test can be performed. Specifically, the spindle centerline and the connecting rod neck centerline of the workpiece 200 can be drawn first. Afterwards, by turning the box body 100 back and forth and left and right, the dimensions in each direction can be quickly drawn, and then it can be determined whether the dimensions of the workpiece 200 meet the requirements of the drawing.

[0028] Further, on the basis of Example 1, Figure 1-2 As shown, the bottom end of the locking screw 130 passes through the top wall of the box 100 and is fixed to the box 100 by two second locking bolts 160, and the two second locking screws are respectively arranged outside and inside the box 100. In this solution, by providing two second locking bolts 160, it is convenient to fix the locking screw 130 on the top of the box 100.

[0029] Further, on the basis of Example 1, Figure 1-3 As shown, a clamping screw 170 is provided between the bottom plate 110 and the box body 100 to fix the bottom plate 110 on the box body 100 .

[0030] Further, on the basis of Example 1, a crowbar hole 180 is provided on the side wall of the box body 100, and a crowbar (not shown) is detachably provided in the crowbar hole 180. Figure 1-2 As shown, the crowbar holes 180 include two groups, including crowbar holes 180 arranged on the front and rear sides of the box body 100 and crowbar holes arranged on the left and right sides of the box body 100, and a crowbar is detachably arranged in each group of crowbar holes 180. In specific implementation, the box body 100 can be quickly turned over by rotating the crowbar.

[0031] In the description of this patent, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the position or location relationship based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing this patent and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of this patent.

[0032] The above are only preferred embodiments of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the present invention through the above teachings or the technology or knowledge in the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A crankshaft-specific rapid detection tool, characterized in that: It comprises a box body (100), and two placement parts and a pressing part arranged on the top of the box body (100); Each of the placement parts comprises a bottom plate (110) and a V-shaped block (120) arranged on the top of the bottom plate (110); The clamping portion comprises a locking screw (130) arranged at the top of the box body (100), a pressure plate (140) movably sleeved on the locking screw (130), and a limiting device for limiting the position of the pressure plate (140); the locking screw (130) is arranged between the two V-shaped blocks (120).

2. A crankshaft-specific rapid detection tool according to claim 1, characterized in that: The limiting device comprises two first locking bolts (150) arranged on the locking screw (130), and the pressing plate (140) is arranged between the two first locking bolts (150).

3. A crankshaft-specific rapid detection tool according to claim 1, characterized in that: The bottom end of the locking screw (130) passes through the top wall of the box body (100) and is fixed to the box body (100) via two second locking bolts (160).

4. A crankshaft-specific rapid detection tool according to claim 1, characterized in that: A clamping screw (170) is provided between the bottom plate (110) and the box body (100).

5. A crankshaft-specific rapid inspection tool according to claim 1, characterized in that: A crowbar hole (180) is provided on the side wall of the box body (100).

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