Crankshaft straightening tool

Abstract

A crankshaft straightening tool relates to the technical field of crankshaft detection equipment, and comprises a base, the upper part of which is oppositely and fixedly provided with two support members; the detection mechanism comprises a limiting piece fixedly installed on the upper portion of the base, two detection pieces and two display pieces, the two detection pieces and the two display pieces are oppositely arranged on the limiting piece, the limiting piece is located between the two supporting pieces, the limiting piece is provided with a detection position linearly arranged with the two supporting pieces, and the two detection pieces are elastically installed on the two sides of the detection position in a sliding mode respectively. The two display members abut against the detection ends of the two detection members in a one-to-one correspondence manner. Firstly, a standard crankshaft is placed between the two supporting pieces and clamped into the detection position, meanwhile, the detection ends of the two detection pieces abut against the side wall of the crankshaft, the diameter value of the standard crankshaft is read through the two display pieces, then the standard crankshaft is taken down, the machined crankshaft is detected in the mode, and the diameter value of the crankshaft is detected through the reading of the display pieces. And comparing the diameter value with the diameter value of the standard crankshaft so as to judge whether the machined crankshaft meets the standard or not.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft detection equipment, in particular to a crankshaft straightening tool. Background Art

[0002] After the crankshaft is processed, it is necessary to use special tools to measure the diameter of the crankshaft to determine whether the crankshaft meets the standards.

[0003] In the Chinese utility model patent with the authorization announcement number CN217058619U, a crankshaft diameter inspection tool is disclosed, which places the crankshaft to be measured into the measuring space, and a fixed probe is pressed against one side of the crankshaft. Then, the measuring rod is moved so that the movable probe at the end of the measuring rod approaches and presses against the crankshaft. As the measuring rod moves, the digital measuring rod on the digital display also moves, and the displayed value on the digital display changes. The displayed value is the diameter data of the crankshaft measured at this time. Although the above patent can detect the crankshaft diameter more conveniently, the specific structure of the inspection tool is relatively complex, the production cost is relatively high, and in the process of detection by the handheld inspection tool, it is easy to be affected by external factors and produce measurement errors, which affect the detection results. Utility Model Content

[0004] In view of the deficiencies existing in the prior art, the utility model provides a crankshaft straightening tool, which solves the problems existing in the prior art that the gauge structure is complex and measurement errors are easily generated.

[0005] A crankshaft straightening tool, comprising:

[0006] A base, on the upper portion of which two supporting members are fixedly mounted facing each other; and

[0007] The detection mechanism includes a limit member fixedly installed on the upper part of the base and two detection members and two display members arranged opposite to each other on the limit member. The limit member is located between the two support members. The limit member is provided with a detection position arranged linearly with the two support members. The two detection members are elastically slidably installed on both sides of the detection position respectively, and the two display members correspond one to one with the detection ends of the two detection members.

[0008] Compared with the prior art, the utility model has the following beneficial effects: when in use, first place the standard crankshaft between the two support members and snap it into the detection position, while making the detection ends of the two detection members abut against the side walls of the crankshaft, read the diameter value of the standard crankshaft through the two display members, then remove the standard crankshaft, and detect the machined crankshaft in the above manner, compare the reading of the display member with the diameter value of the standard crankshaft to determine whether the machined crankshaft meets the standard; the operation is simple and convenient, the crankshaft diameter can be measured quickly, and the entire tooling structure is simple, the production cost is low, and no measurement error will be generated during the measurement process, thereby ensuring the accuracy of the measurement result.

[0009] Preferably, the limiting member includes a fixing plate fixedly mounted on the upper part of the base, the detection position is a limiting groove opened above the middle part of the fixing plate, the two detection members are elastically slidably connected to the upper part of the fixing plate and are respectively located on both sides of the notch of the limiting groove, and the two display members are arranged one by one on the two opposite side walls of the fixing plate.

[0010] Preferably, half-through slide grooves are horizontally opened on the upper parts of the two opposing side walls of the limit groove, and a mounting hole is horizontally opened on the closed end side wall of each half-through slide groove. Two detection parts are horizontally slidably arranged between the inner and outer sides of the two half-through slide grooves in a one-to-one manner, and two display parts are installed in a one-to-one manner between the inner and outer sides of the mounting holes, and each display part freely passes through the mounting hole and abuts against the detection end of the corresponding detection part.

[0011] Preferably, each of the detection members comprises a slider which slides horizontally between the inner and outer sides of the corresponding semi-through slide groove, the slider is elastically connected to the corresponding semi-through slide groove via a spring, and the display member abuts against one end of the corresponding slider.

[0012] Preferably, a threaded hole is formed on the upper side wall of each mounting hole, and the display component includes a dial indicator freely installed between the inner and outer sides of the mounting hole, the measuring head of the dial indicator freely passes through the mounting hole and enters the semi-through slide groove to abut against one end of the slider, and a locking bolt is freely threadedly connected between the inner and outer sides of the threaded hole, and the locking bolt is used to abut against the sleeve of the dial indicator measuring head.

[0013] Preferably, a first mounting groove is provided on the bottom of the semi-through slide groove, a second mounting groove is provided on the side wall of the slider facing the semi-through slide groove, and the spring is elastically installed between the first mounting groove and the second mounting groove along the sliding direction of the slider.

[0014] Preferably, a cover plate is fixedly installed at the notch of each of the semi-through slide slots.

[0015] Preferably, each of the support members includes a support block fixedly mounted on the upper part of the base, a V-shaped groove is provided on the upper part of the support block, support bars are fixedly mounted on two opposing inner walls of the V-shaped groove along the length direction thereof, and the two V-shaped grooves are coaxially arranged with the limit groove.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic structural diagram of an embodiment.

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the fixed plate.

[0019] Figure 3 for Figure 1 Schematic diagram of the structure of the middle slider.

[0020] Figure 4 for Figure 1 Assembly cross-sectional view of the middle slider and the fixed plate.

[0021] The numbers in the figure are: 1. base; 2. fixing plate; 21. limit groove; 22. half-through slide groove; 23. first mounting groove; 24. mounting hole; 25. threaded hole; 3. slider; 31. second mounting groove; 4. spring; 5. cover plate; 6. locking bolt; 7. dial indicator; 8. support block; 81. V-shaped groove; 82. support bar. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods:

[0023] like Figure 1 As shown, an embodiment of the utility model provides a crankshaft straightening tool, including: a base 1, on the upper part of which two supporting members are fixedly installed facing each other; and a detection mechanism, which includes a limit member fixedly installed on the upper part of the base 1 and two detection members and two display members arranged facing each other on the limit member, the limit member is located between the two supporting members, and the limit member is provided with a detection position linearly arranged with the two supporting members, the two detection members are elastically slidably installed on both sides of the detection position, and the two display members correspond one by one to the detection ends of the two detection members.

[0024] First, place the standard crankshaft between two supporting parts and insert it into the detection position, while making the detection ends of the two detection parts abut against the side walls of the crankshaft, read the diameter value of the standard crankshaft through the two display parts, then remove the standard crankshaft, and detect the processed crankshaft in the above manner, and compare the reading of the display part with the diameter value of the standard crankshaft to determine whether the processed crankshaft meets the standard; the operation is simple and convenient, and the diameter of the crankshaft can be measured quickly, and the entire tooling structure is simple and the production cost is low. At the same time, no measurement error will be generated during the measurement process, thereby ensuring the accuracy of the measurement result.

[0025] like Figure 1-4As shown, according to another embodiment of the utility model, the crankshaft straightening tool is further optimized with respect to the limit parts, detection parts and display parts included therein, the limit parts include a fixed plate 2 fixedly mounted on the upper part of the base 1, the detection position is a limit groove 21 opened above the middle part of the fixed plate 2, the two detection parts are elastically slidably connected to the upper part of the fixed plate 2 and are respectively located on both sides of the notch of the limit groove 21, and the two display parts are arranged one by one on the two opposite side walls of the fixed plate 2.

[0026] Half-through grooves 22 are horizontally opened on the upper parts of the two opposing side walls of the limiting groove 21, and a mounting hole 24 is horizontally opened on the closed end side wall of each of the half-through grooves 22. Two detection parts are horizontally slidably arranged between the inner and outer sides of the two half-through grooves 22 in a one-to-one manner, and two display parts are installed in a one-to-one manner between the inner and outer sides of the mounting holes 24. Each display part freely passes through the mounting hole 24 and then abuts against the detection end of the corresponding detection part; and preferably, a cover plate 5 is fixedly installed at the notch of each of the half-through grooves 22, which can limit the position of the detection part so that it can only slide in the horizontal direction.

[0027] Each of the detection components includes a slider 3 that slides horizontally between the inner and outer sides of the corresponding semi-through slot 22, the slider 3 is elastically connected to the corresponding semi-through slot 22 by a spring 4, and the display component is against one end of the corresponding slider 3; and preferably, a first mounting groove 23 is provided on the bottom of the semi-through slot 22, and a second mounting groove 31 is provided on the side wall of the slider 3 facing the semi-through slot 22, and the spring 4 is elastically installed between the first mounting groove 23 and the second mounting groove 31 along the sliding direction of the slider 3; it can ensure that the spring 4 moves more stably during the elastic deformation process; and preferably, the width of one end of each slider 3 facing the other slider 3 is smaller than the width of the other end thereof, so as to reduce the contact area between the slider 3 and the side wall of the crankshaft and improve the detection accuracy.

[0028] A threaded hole 25 is formed on the upper side wall of each mounting hole 24, and the display component includes a dial indicator 7 freely passing through the inner and outer sides of the mounting hole 24, and the measuring head of the dial indicator 7 freely passes through the mounting hole 24 and penetrates into the semi-through slide groove 22 to abut against one end of the slider 3. A locking bolt 6 is freely threadedly connected between the inner and outer sides of the threaded hole 25, and the locking bolt 6 is used to abut against the sleeve of the measuring head of the dial indicator 7; when the dial indicator 7 needs to be replaced or repaired, it is only necessary to loosen the locking bolt 6 to disengage it from the sleeve of the measuring head of the dial indicator 7 and then remove the dial indicator 7 for replacement or repair; the specific structure and working principle of the dial indicator 7 are all prior art and are not described in detail here.

[0029] like Figure 1As shown, according to another embodiment of the utility model, the crankshaft straightening tool further optimizes the support members included therein, and each of the support members includes a support block 8 fixedly mounted on the upper part of the base 1, and a V-shaped groove 81 is provided on the upper part of the support block 8, and support bars 82 are fixedly mounted on the two opposing inner walls of the V-shaped groove 81 along the length direction thereof, and the two V-shaped grooves 81 are coaxially arranged with the limiting groove 21; during detection, the two V-shaped grooves 81 cooperate with the limiting groove 21 to limit the position of the crankshaft, and the two support bars 82 can reduce the contact area between the crankshaft and the V-shaped groove 81, so that the friction area between the V-shaped groove 81 and the crankshaft surface is reduced, thereby reducing the wear on the crankshaft surface.

[0030] The use principle of the utility model is as follows: when the utility model is used, the two dial indicators 7 are calibrated first, and then the standard crankshaft is placed between the two V-grooves 81 and inserted into the limit groove 21. At the same time, the side wall of the standard crankshaft abuts against the two sliders 3, so that the two sliders 3 slide along the corresponding half-through grooves 22, and the spring 4 is compressed, so that the slider 3 pushes the measuring head of the dial indicator 7 abutting against it, so that the two dial indicators 7 produce readings, thereby obtaining the diameter value of the standard crankshaft; then the standard crankshaft is removed, and under the elastic action of the spring 4, the two sliders 3 and the two dial indicators 7 are reset, and then the diameter of the machined crankshaft is measured in the above manner, and the measurement results obtained by the two dial indicators 7 are compared with the diameter value of the standard crankshaft to determine whether the machined crankshaft meets the standard.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A crankshaft straightening tool, characterized in that: include: A base (1) having two supporting members fixedly mounted on its upper portion facing each other; as well as The detection mechanism comprises a limiter fixedly mounted on the upper part of a base (1) and two detection members and two display members arranged on the limiter in opposite directions. The limiter is located between two support members. The limiter is provided with a detection position arranged linearly with the two support members. The two detection members are elastically slidably mounted on both sides of the detection position respectively. The two display members are in one-to-one correspondence with the detection ends of the two detection members.

2. A crankshaft straightening tool according to claim 1, characterized in that: The limiting member comprises a fixing plate (2) fixedly mounted on the upper part of the base (1); the detecting position is a limiting groove (21) provided on the upper middle part of the fixing plate (2); the two detecting members are elastically slidably connected to the upper part of the fixing plate (2) and are respectively located on both sides of the notch of the limiting groove (21); and the two display members are arranged one by one on two opposite side walls of the fixing plate (2).

3. A crankshaft straightening tool according to claim 2, characterized in that: The upper parts of the two opposing side walls of the limit groove (21) are both horizontally provided with half-through slide grooves (22), and the closed end side wall of each half-through slide groove (22) is horizontally provided with a mounting hole (24), and two detection members are horizontally slidably arranged one by one between the inner and outer sides of the two half-through slide grooves (22), and two display members are installed one by one between the inner and outer sides of the mounting holes (24), and each display member freely passes through the mounting hole (24) and abuts against the detection end of the corresponding detection member.

4. A crankshaft straightening tool according to claim 3, characterized in that: Each of the detection components comprises a slider (3) which slides horizontally between the inner and outer sides of a corresponding semi-through slide groove (22); the slider (3) is elastically connected to the corresponding semi-through slide groove (22) via a spring (4); and the display component abuts against one end of the corresponding slider (3).

5. A crankshaft straightening tool according to claim 4, characterized in that: A threaded hole (25) is provided on the upper side wall of each of the mounting holes (24); the display component comprises a dial gauge (7) freely passing through and installed between the inner and outer sides of the mounting hole (24); the measuring head of the dial gauge (7) freely passes through the mounting hole (24) and penetrates into the semi-through slide groove (22) to abut against one end of the slider (3); a locking bolt (6) is freely passed through and threadedly connected between the inner and outer sides of the threaded hole (25); the locking bolt (6) is used to abut against the sleeve of the measuring head of the dial gauge (7).

6. A crankshaft straightening tool according to claim 4, characterized in that: A first mounting groove (23) is provided on the groove bottom of the semi-through slide groove (22), a second mounting groove (31) is provided on the side wall of the slider (3) facing the semi-through slide groove (22), and the spring (4) is elastically installed between the first mounting groove (23) and the second mounting groove (31) along the sliding direction of the slider (3).

7. A crankshaft straightening tool according to claim 3, characterized in that: A cover plate (5) is fixedly mounted at the notch of each of the semi-through slide grooves (22).

8. The crankshaft straightening tool according to claim 2, characterized in that: Each of the support members comprises a support block (8) fixedly mounted on the upper part of the base (1); a V-shaped groove (81) is provided on the upper part of the support block (8); support bars (82) are fixedly mounted on two opposing inner walls of the V-shaped groove (81) along the length direction thereof; and the two V-shaped grooves (81) are coaxially arranged with the limiting groove (21).

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