Auxiliary device for crankshaft measurement

Abstract

The utility model discloses an auxiliary device for crankshaft measurement, relates to the technical field of measuring devices, and solves the problem that in the prior art, a traditional measuring tool cannot acquire key data of a special shape of a crankshaft, so that the machining precision and quality of the crankshaft are difficult to ensure. Comprising a crankshaft clamping frame and an auxiliary assembly, the auxiliary assembly is arranged in the axial direction of a crankshaft to be measured in a sleeving mode, and the crankshaft clamping frame is connected to the upper portion of the auxiliary assembly in a clamping mode; the crankshaft clamping frame comprises a base, the base is arranged above the auxiliary assembly, and two sets of clamping plates are symmetrically and slidably connected to the bottom of the base; an axial measuring scale and a fixed rod are vertically connected above the base, a sliding block is connected onto the fixed rod in a sliding manner, and a radial measuring scale is connected onto the sliding block in a sliding manner. The beneficial effects of the utility model are that the device can adapt to flexible positioning of crankshafts with different diameter specifications, can accurately measure the height of a top circle and the height of an inclined plane of the crankshaft, and improves the measurement precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to measuring device technical field, concretely is a kind of auxiliary device for crankshaft measurement. BACKGROUND

[0002] In actual production process, crankshaft is as a kind of key mechanical component, appearance structure is more complex, usually by multiple different shapes part, including various curved journal, connecting rod journal and different angle bevel etc.

[0003] Traditional measuring tool can only be measured to more regular geometric shape, and for the workpiece of crankshaft with complex curve and bevel, its measurement precision and accuracy are difficult to guarantee. Whether it is caliper, micrometer or other common measuring tool, when facing the special shape of crankshaft, it cannot comprehensively and accurately obtain the key data of each top circle and bevel. This makes it impossible to meet the demand of accurate machining and quality control of crankshaft in production and processing process, and it is difficult to accurately measure these key data, to ensure the machining precision and quality of crankshaft, and further to cause the performance instability, shortened life and other problems in the subsequent use process of product, seriously affect the smooth progress of entire production process and the final quality of product.

[0004] Therefore, the utility model provides a kind of auxiliary device for crankshaft measurement, to solve the generation of the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of auxiliary device for crankshaft measurement, to solve the problem that traditional measuring tool cannot obtain key data for the special shape of crankshaft in prior art, and further to ensure the machining precision and quality of crankshaft.

[0006] The technical scheme that the utility model solves its technical problem is:

[0007] The utility model provides a kind of auxiliary device for crankshaft measurement, including crankshaft clamping frame and auxiliary assembly, the auxiliary assembly is set in the axial direction of the crankshaft to be measured, the crankshaft clamping frame clamps connection above the auxiliary assembly;The crankshaft clamping frame includes base, which is arranged above the auxiliary assembly, the bottom of the base is symmetrically slidably connected with two sets of clamping plates, the base is opened with sliding slot corresponding the clamping plate, reset spring is connected between the clamping plate and the end of the sliding slot;The upper portion of the base is vertically connected with axial measuring scale and fixed rod, the axial measuring scale is arranged in parallel with the fixed rod, the fixed rod is slidably connected with sliding block, the sliding block is connected with abutting bolt corresponding the fixed rod, the sliding block is slidably connected with radial measuring scale, the radial measuring scale is connected with rack corresponding the bottom of the sliding block, the sliding block is rotatably connected with gear corresponding the rack, the sidewall of the sliding block is connected with rotating handle corresponding the gear.

[0008] By adopting the above technical scheme, different diameter specifications of crankshaft can be adaptively positioned flexibly, which provides guarantee for subsequent stable measurement, and the height of the top circle and the height of the inclined surface of the crankshaft can be accurately measured, so as to improve the measurement precision.

[0009] Further, the auxiliary assembly is composed of a compressible elastic material with a certain elasticity.

[0010] By adopting the above technical scheme, different diameter specifications of crankshaft can be adaptively positioned flexibly, which provides guarantee for subsequent stable measurement, and the height of the top circle and the height of the inclined surface of the crankshaft can be accurately measured, so as to improve the measurement precision.

[0011] Further, the clamping plate is connected with a friction layer corresponding to one side of the base.

[0012] By adopting the above technical scheme, the friction layer can increase the friction between the crankshaft, thereby stably clamping the crankshaft.

[0013] Further, a positioning screw is threadedly connected to the clamping plate, and a waist-shaped groove is formed in the base corresponding to the positioning screw.

[0014] By adopting the above technical scheme, the positioning screw can be twisted to further fix the position of the clamping plate.

[0015] Further, the clamping plate is connected with a guide rod corresponding to the direction of the sliding slot, the base is provided with a guide slot corresponding to the guide rod, and the end of the guide rod is connected with a limiting plate.

[0016] By adopting the above technical scheme, the guide rod can slide along the guide slot during the movement of the clamping plate, and the limiting plate at the end of the guide rod can prevent the guide rod from sliding out, thereby ensuring the stability of the movement of the clamping plate.

[0017] Further, the first reading pointer is connected to the base corresponding to the axial measuring scale, and the second reading pointer is connected to the base corresponding to the radial measuring scale.

[0018] By adopting the above technical scheme, the first reading pointer and the second reading pointer on the base can be observed to facilitate reading of the data measured by the axial measuring scale and the radial measuring scale.

[0019] Further, the axial measuring scale and the fixed rod are detachably connected to the base.

[0020] By adopting the above technical scheme, the detachable connection facilitates replacement and maintenance of the axial measuring scale and the fixed rod.

[0021] Further, the end of the radial measuring scale is longitudinally and slidably connected with a stop block, the upper end of the stop block is rotationally connected with a limiting block, and the upper end of the limiting block is fixedly connected with a limiting handle.

[0022] By adopting the above technical scheme, the stop block can be positioned against the crankshaft to be measured by rotating the limiting handle, thereby improving the accuracy of radial size measurement.

[0023] Compared with the prior art, the utility model has the beneficial effects that:

[0024] The utility model can slide the sliding block on the fixed rod to the measuring position, tighten the abutting bolt to fix the sliding block, then rotate the rotating handle, the rotating handle drives the gear to rotate, the rack engaged with the gear drives the radial measuring scale to move, radial size measurement is realized, the stop block can be positioned against the crankshaft to be measured by rotating the limiting handle, thereby improving the accuracy of measurement data. The utility model can be flexibly positioned for crankshafts of different diameters, provides guarantee for subsequent stable measurement, can accurately measure the height of the top circle and the height of the inclined surface of the crankshaft, improves measurement precision, improves the processing quality of the crankshaft, effectively reduces the waste rate and the rework rate caused by size error, saves a large amount of cost and time for enterprises. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a vertical view of the utility model Figure 1 ;

[0026] Figure 2 It is a vertical view of the utility model Figure 2 ;

[0027] Figure 3 It is a front view of the utility model;

[0028] Figure 4 It is a partial sectional view of the front view of the utility model;

[0029] Figure 5 is a left view of the utility model;

[0030] In the figure: 1, auxiliary assembly; 2, to be measured crankshaft; 3, base; 4, clamping plate; 5, friction layer; 6, positioning screw; 7, waist type slot; 8, guide rod; 9, guide slot; 10, limit plate; 11, sliding slot; 12, return spring; 13, axial measuring scale; 14, fixed rod; 15, sliding block; 16, abutting bolt; 17, radial measuring scale; 18, stop block; 19, limit block; 20, limit handle; 21, rack; 22, gear; 23, rotating handle; 24, first reading pointer; 25, second reading pointer. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] In the present application, the orientation or position relationship indicated by the terms "upper", "inner", "outer", "middle" and the like is based on the orientation or position relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0033] As shown in Figure 1 and Figure 2 An auxiliary device for crankshaft measurement, comprising a crankshaft clamping frame and an auxiliary assembly 1, the auxiliary assembly 1 is sleeved on the axial direction of the crankshaft to be measured 2, and the crankshaft clamping frame is clamped and connected above the auxiliary assembly 1; the auxiliary assembly 1 is composed of a compressible elastic material with a certain elasticity.

[0034] As shown in Figures 2-5As shown, the crankshaft clamping frame comprises a base 3 arranged above the auxiliary assembly 1, the bottom of the base 3 is symmetrically and slidingly connected with two groups of clamping plates 4, the base 3 is provided with sliding grooves 11 corresponding to the clamping plates 4, and the clamping plates 4 and the ends of the sliding grooves 11 are connected with return springs 12; the clamping plates 4 are connected with friction layers 5 corresponding to one side of the base 3. The clamping plates 4 are threadedly connected with positioning screws 6, and the base 3 is provided with a waist-shaped groove 7 corresponding to the positioning screws 6. The clamping plates 4 are connected with guide rods 8 corresponding to the direction of the sliding grooves 11, the base 3 is provided with guide grooves 9 corresponding to the guide rods 8, and the ends of the guide rods 8 are connected with limit plates 10. Further, the guide rods 8 can slide along the guide grooves 9 during the movement of the clamping plates 4, and the limit plates 10 at the ends of the guide rods 8 can prevent the guide rods 8 from sliding out, thereby ensuring the stability of the movement of the clamping plates 4. Further, the auxiliary assembly 1 made of elastic material is sleeved on the axial direction of the crankshaft 2 to be measured, and then the crankshaft clamping frame is placed above the auxiliary assembly 1, so that the base 3 is in the appropriate position, and then the two groups of clamping plates 4 are pulled outward, at this time the return springs 12 are stretched, the auxiliary assembly 1 is placed between the two groups of clamping plates 4, and then the clamping plates 4 are released, and then the clamping plates 4 move inward under the elastic force of the return springs 12, the friction layers 5 on the clamping plates 4 increase the friction between the crankshaft, thereby stably clamping the crankshaft, and at the same time the positioning screws 6 can be twisted to further fix the position of the clamping plates 4. It can adapt to different diameter specifications of the crankshaft for flexible positioning, and provide protection for subsequent stable measurement.

[0035] As Figure 3 and Figure 4As shown, the upper part of the base 3 is vertically connected with an axial measuring scale 13 and a fixed rod 14, the axial measuring scale 13 and the fixed rod 14 are detachably connected with the base 3. The axial measuring scale 13 and the fixed rod 14 are arranged in parallel, the fixed rod 14 is slidably connected with a sliding block 15, the sliding block 15 is connected with a clamping bolt 16 corresponding to the fixed rod 14, the sliding block 15 is slidably connected with a radial measuring scale 17, the radial measuring scale 17 is connected with a rack 21 corresponding to the bottom of the sliding block 15, the inside of the sliding block 15 is rotatably connected with a gear 22 corresponding to the rack 21, the side wall of the sliding block is connected with a rotating handle 23 corresponding to the gear 22. The end of the radial measuring scale 17 is longitudinally slidably connected with a stop block 18, the upper end of the stop block 18 is rotatably connected with a limiting block 19, the upper end of the limiting block 19 is fixedly connected with a limiting handle 20. The base 3 is connected with a first reading pointer 24 corresponding to the axial measuring scale 13, and the base 3 is connected with a second reading pointer 25 corresponding to the radial measuring scale 17. Further, the sliding block 15 is slid on the fixed rod 14 to the measuring position, and the clamping bolt 16 is tightened to fix the sliding block 15. Further, the rotating handle 23 is rotated, the rotating handle 23 drives the gear 22 to rotate, the rack 21 meshing with the gear 22 will drive the radial measuring scale 17 to move, realizing the radial dimension measurement, and at the same time, the limiting handle 20 can be rotated to make the stop block 18 abut against the crankshaft 2 to be measured to position, improving the accuracy of the measurement data. Further, by observing the first reading pointer 24 and the second reading pointer 25 on the base 3, the data measured by the axial measuring scale 13 and the radial measuring scale 17 are read respectively, and the related dimension measurement of the crankshaft is completed.

[0036] The working process of the utility model is:

[0037] First, the auxiliary assembly 1 made of elastic material is sleeved on the axial direction of the crankshaft 2 to be measured, then the crankshaft clamping frame is placed above the auxiliary assembly 1, the base 3 is in the appropriate position, then the two sets of clamping plates 4 are pulled outward, at this time the reset spring 12 is stretched, the auxiliary assembly 1 is placed between the two sets of clamping plates 4, then the clamping plates 4 move inward under the elastic force of the reset spring 12, the friction layer 5 on the clamping plate 4 increases the friction force between the crankshaft, then the crankshaft is stably clamped, and the positioning screw 6 can be screwed to further fix the position of the clamping plate 4.

[0038] Further, the sliding block 15 slides on the fixed rod 14 to the measuring position, and the tightening abutting bolt 16 is tightened to fix the sliding block 15. Further, the rotating handle 23 is rotated to drive the gear 22 to rotate, and the rack 21 engaged with the gear 22 drives the radial measuring scale 17 to move, so that the radial size measurement is realized. Meanwhile, the limiting handle 20 is rotated to make the stopper 18 abut against the crankshaft 2 to be measured to position, so that the accuracy of the measured data is improved. Further, the first reading pointer 24 and the second reading pointer 25 on the base 3 are observed to read the data measured by the axial measuring scale 13 and the radial measuring scale 17 respectively, so that the related size measurement of the crankshaft is completed.

Claims

1. A supplementary device for crankshaft measurement, comprising a crankshaft clamping stand and a supplementary assembly (1), characterized in that, The auxiliary assembly (1) is sleeved on the crankshaft (2) to be measured in the axial direction, and the crankshaft clamping frame is clamped and connected above the auxiliary assembly (1); The crankshaft clamping frame comprises a base (3) arranged above the auxiliary assembly (1), two groups of clamping plates (4) symmetrically and slidingly connected to the bottom of the base (3), and a reset spring (12) connected between the clamping plate (4) and the end of the sliding slot (11) corresponding to the clamping plate (4) of the base (3). An axial measuring scale (13) and a fixed rod (14) are vertically connected above the base (3), the axial measuring scale (13) and the fixed rod (14) are arranged in parallel, a sliding block (15) is slidingly connected to the fixed rod (14), a clamping bolt (16) is connected to the sliding block (15) corresponding to the fixed rod (14), a radial measuring scale (17) is slidingly connected to the sliding block (15), a rack (21) is connected to the bottom of the radial measuring scale (17) corresponding to the sliding block (15), a gear (22) is rotatably connected to the inside of the sliding block (15) corresponding to the rack (21), and a rotating handle (23) is connected to the side wall of the sliding block (15) corresponding to the gear (22).

2. The auxiliary device for measuring a crankshaft according to claim 1, wherein The auxiliary assembly (1) is composed of a compressible elastic material with a certain elasticity.

3. The auxiliary device for measuring a crankshaft according to claim 1, wherein The clamping plate (4) is connected with a friction layer (5) on one side corresponding to the base (3).

4. The auxiliary device for measuring a crankshaft according to claim 3, wherein The clamping plate (4) is threadedly connected with a positioning screw (6), and the base (3) is provided with a waist-shaped groove (7) corresponding to the positioning screw (6).

5. The auxiliary device for measuring a crankshaft according to claim 4, wherein The clamping plate (4) is connected with a guide rod (8) corresponding to the sliding slot (11) direction, the base (3) is provided with a guide slot (9) corresponding to the guide rod (8), and the end of the guide rod (8) is connected with a limiting plate (10).

6. The auxiliary device for measuring a crankshaft according to claim 1, wherein The base (3) is connected with a first reading pointer (24) corresponding to the axial measuring scale (13), and the base (3) is connected with a second reading pointer (25) corresponding to the radial measuring scale (17).

7. A device according to claim 6, wherein the device is adapted to be attached to the crankshaft at the crankshaft flange. The axial measuring scale (13) and the fixed rod (14) are detachably connected with the base (3).

8. The auxiliary device for measuring a crankshaft according to claim 7, wherein The end of the radial measuring scale (17) is longitudinally slidingly connected with a stop block (18), the upper end of the stop block (18) is rotatably connected with a limiting block (19), and the upper end of the limiting block (19) is fixedly connected with a limiting handle (20).

Images