Connecting rod wall thickness measuring tool

Abstract

The utility model relates to a connecting rod wall thickness measuring tool which comprises a tool body, the tool body comprises a bottom plate, the top of the bottom plate is provided with a large head end positioning block through a bolt, the top of the bottom plate is further provided with a fixing part, the top of the bottom plate is provided with a small head end wall thickness measuring assembly, and the small head end positioning block is connected with the fixing part. The fixing part is located between the large head end positioning block and the small head end wall thickness measuring assembly. The small end wall thickness measuring assembly comprises two vertical rods, the lower half parts of one sides of the two vertical rods are fixedly provided with distance sensors, the two distance sensors are oppositely arranged, one distance sensor is located in a small end hole of the connecting rod, and the other distance sensor is located outside the small end of the connecting rod; the small end wall thickness measuring assembly further comprises a lifting assembly, and the lifting assembly drives the two vertical rods to move synchronously. The utility model relates to the technical field of connecting rod measurement. The device has the effects of rapidness, convenience and high precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of connecting rod measurement, especially to a connecting rod wall thickness measuring tool. BACKGROUND

[0002] Connecting rods are used on internal combustion engines.

[0003] When detecting the connecting rod, one of the items is to measure the small head end wall thickness. Figure 4 It can be seen that the small head end outside of the connecting rod is a non-circular curve, which is not easy to measure normally. Now, manual measurement is generally used by using a vernier caliper to measure multiple points multiple times. This measurement method not only requires a lot of time and the energy of the operator, but also cannot completely guarantee the correctness of the measurement results. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a connecting rod wall thickness measuring tool, which has the effects of being fast, convenient and high in precision.

[0005] The above technical purpose of the utility model is achieved by the following technical scheme:

[0006] A connecting rod wall thickness measuring tool, comprising a tool body, the tool body comprising a bottom plate, a large end positioning block being provided on the top of the bottom plate through bolts, a fixing portion also being provided on the top of the bottom plate, a small end wall thickness measuring assembly being provided on the top of the bottom plate, the fixing portion being located between the large end positioning block and the small end wall thickness measuring assembly;

[0007] The small end wall thickness measuring assembly comprises two vertical rods, distance sensors being fixedly installed on one side of the lower half of the two vertical rods, the two distance sensors being oppositely arranged, one of the distance sensors being located in the small head hole of the connecting rod, and the other distance sensor being located outside the small head of the connecting rod;

[0008] The small end wall thickness measuring assembly further comprises a lifting assembly, the lifting assembly driving the two vertical rods to move synchronously.

[0009] In a preferred example, the lifting assembly can be further configured as follows: the lifting assembly comprises a support frame, the support frame being fixedly provided on the bottom plate, a first telescopic portion being fixedly provided on the support frame;

[0010] An arc-shaped plate is fixedly provided on the upper half of one of the vertical rods, and the other vertical rod is slidably connected with the arc-shaped plate;

[0011] The telescopic end of the first telescopic portion penetrates through the support frame and is fixedly provided with a connecting plate, a motor being provided on the top of the vertical rod fixedly connected with the arc-shaped plate, and the motor being connected with the connecting plate;

[0012] The output end of the motor is connected to the top of the vertical rod.

[0013] In a preferred example, the arc-shaped plate is provided with a first through hole, a guide rod is horizontally arranged in the first through hole, a sliding block is slidably arranged on the guide rod, and the bottom of the sliding block is fixed to the top of one of the vertical rods.

[0014] In a preferred example, the top of the sliding block is provided with a screw rod, the screw rod passes through the first through hole, a nut is sleeved on the outer circumferential surface of the screw rod, and the bottom portion of the nut is in contact with the top of the arc-shaped plate.

[0015] In a preferred example, the bottom of the vertical rod connected to the motor is conical.

[0016] When the conical apex is in contact with the bottom plate, the bottom of the other vertical rod is spaced apart from the bottom plate.

[0017] In a preferred example, the fixing portion includes a vertical rod, a rotating plate is rotatably sleeved on the outer circumferential surface of the vertical rod, a second telescopic portion is arranged on the top of the rotating plate, and a pressing block is fixedly arranged on the telescopic end of the second telescopic portion.

[0018] In summary, the utility model has at least one of the following beneficial technical effects:

[0019] 1. Two vertical rods are arranged on the bottom plate, distance sensors are arranged on the two vertical rods, one vertical rod is located in the small head hole, and the other vertical rod is located outside the small head hole, so that the wall thickness value of the small head end can be quickly and accurately measured by the sensor.

[0020] 2. A motor is arranged on the top of one of the vertical rods, the motor drives the rotation of the vertical rod and the arc-shaped plate, and finally drives the rotation of the two vertical rods, so that the small head end can be quickly measured at multiple positions. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic view of the overall structure from the top of the embodiment;

[0022] Figure 2 is Figure 1 is a schematic view of the working state of the lifting structure, the arc-shaped plate and the two vertical rods for measuring the wall thickness of the small head end;

[0023] Figure 3 is Figure 1 is a schematic view of the working state of the lifting structure, the arc-shaped plate and the two vertical rods for measuring the wall thickness of the small head end;

[0024] Figure 4 is a schematic view of the overhead structure of the connecting rod mentioned in the background.

[0025] In the figure, 1 is a tool body; 11 is a bottom plate; 12 is a large end positioning block; 2 is a small end wall thickness measuring assembly; 21 is a vertical rod; 22 is a distance sensor; 3 is a lifting assembly; 31 is a support frame; 32 is a first telescopic part; 33 is an arc plate; 34 is a connecting plate; 35 is a motor; 36 is a guide rod; 4 is a first through hole; 41 is a guide rod; 42 is a sliding block; 5 is a screw rod; 51 is a nut; 6 is a vertical rod; 61 is a rotating plate; 62 is a second telescopic part; 63 is a pressing block. DETAILED DESCRIPTION

[0026] The utility model will be further explained in detail below in combination with the drawings.

[0027] Embodiment:

[0028] Referring to Figures 1-3 The utility model discloses a connecting rod wall thickness measuring tool, including tool body 1, and tool body 1 includes bottom plate 11. The top of bottom plate 11 is provided with big end positioning block 12 through bolt. The operator replaces the big end positioning block 12 suitable according to the size of the connecting rod big end size that needs to measure previously.

[0029] The top of bottom plate 11 is also provided with fixed part. The fixed part is to avoid the displacement of connecting rod during the measurement process. The fixed part includes vertical rod 6, and the outer circumferential surface of vertical rod 6 is rotatably provided with rotating plate 61. Rotating plate 61 is connected with vertical rod 6 in damping rotation. Under the condition of not being affected by external force, the position of rotating plate 61 will not change.

[0030] The top of rotating plate 61 is provided with second telescopic part 62, and the telescopic end in second telescopic part 62 passes through rotating plate 61 and is fixedly provided with pressing block 63.

[0031] When working, second telescopic part 62 is started and drives pressing block 63 to move towards the placing direction of connecting rod, so that pressing block 63 presses the middle part of connecting rod.

[0032] The top of bottom plate 11 is provided with small end wall thickness measuring assembly 2, and the fixed part is located between big end positioning block 12 and small end wall thickness measuring assembly 2.

[0033] Small end wall thickness measuring assembly 2 includes two vertical rods 21 and lifting assembly 3. Lifting assembly 3 includes support frame 31, and support frame 31 is fixedly arranged on bottom plate 11, and first telescopic part 32 is fixedly arranged on support frame 31.

[0034] The first telescopic part 32 is fixedly provided with a connecting plate 34 through the support frame 31. The bottom of the connecting plate 34 is fixedly provided with a motor 35, and one of the vertical rods 21 is connected to the output end of the motor 35. The outer circumferential surface of the vertical rod 21 is fixedly sleeved with an arc-shaped plate 33. The other vertical rod 21 is slidably connected to the arc-shaped plate 33.

[0035] The top of the connecting plate 34 is symmetrically provided with two guide rods 36, both of which pass through the support frame 31 and are slidably connected to the support frame 31.

[0036] The arc-shaped plate 33 is provided with a first through hole 4, and a guide rod 41 is horizontally arranged in the first through hole 4. A sliding block 42 is slidably arranged on the guide rod 41, and the bottom of the sliding block 42 is fixedly connected to the top of one of the vertical rods 21.

[0037] The top of the sliding block 42 is provided with a screw rod 5 which passes through the first through hole 4. The outer circumferential surface of the screw rod 5 is sleeved with a nut 51, and the bottom of the nut 51 is in contact with the top of the arc-shaped plate 33.

[0038] The bottom of the vertical rod 21 connected to the motor 35 is conical, and when the top of the cone is in contact with the bottom plate 11, the bottom of the other vertical rod 21 is at a distance from the bottom plate 11.

[0039] The lower half of one side of each of the two vertical rods 21 is fixedly provided with a distance sensor 22, and the two distance sensors 22 are oppositely arranged. One of the distance sensors 22 is located in the connecting rod big end hole, and the other distance sensor 22 is located outside the connecting rod big end.

[0040] The implementation principle of the above embodiment is as follows:

[0041] First, the operator selects the appropriate big end positioning block 12 according to the actual situation.

[0042] Then, the connecting rod is placed on the bottom plate 11, and the big end positioning block 12 is located in the connecting rod big end hole. The operator tries to keep the connecting rod parallel to the length direction of the bottom plate 11.

[0043] Next, the operator rotates the rotating plate 61, and the rotating plate 61 drives the pressing block 63 to move to the middle of the connecting rod.

[0044] As the pressing block 63 gradually moves downward, the pressing block 63 comes into contact with the connecting rod and fixes the position of the connecting rod.

[0045] Next, the operator first adjusts the position of the movable vertical rod 21, adjusts and fixes the position of the vertical rod 21 by changing the relative position of the nut 51 and the top of the arc-shaped plate 33.

[0046] After adjusting the position of the vertical rod 21, the operator first connects the power supply, starts the first telescopic part 32, and drives the connecting plate 34 to move downward, and the connecting plate 34 drives the motor 35 to move downward.

[0047] The bottom of the vertical rod 21 is conical and located in the small head hole, and the other vertical rod 21 is located outside the connecting rod.

[0048] At this time, the distance sensors 22 on the two vertical rods 21 are respectively directed to the inner hole wall of the small head end and the outer hole wall of the small head end.

[0049] In addition, the light emitted by the distance sensors 22 on the two vertical rods 21 is parallel.

[0050] Before measuring the wall thickness of the small head hole and after adjusting the position of one of the vertical rods 21, the two distance sensors 22 are started, and the verticals measured by the distance sensors 22 are sent to the receiving device.

[0051] It is particularly pointed out that the verticals measured by each distance sensor 22 are the straight-line distances between the two vertical rods 21, which are denoted as L1 in the embodiment.

[0052] In the actual test process, the verticals measured by the two distance sensors 22 are denoted as L2 and L3, respectively, and the wall thickness L5 of the small head end at this position is equal to L1 minus L2 minus L3.

[0053] In order to measure the wall thickness of the small head end at multiple positions, the motor 35 is automatically controlled by the control program, and the motor 35 drives the arc-shaped plate 33 to rotate, and the arc-shaped plate 33 drives the two vertical rods 21 to synchronously rotate during the rotation process.

[0054] In the embodiment, the motor 35 rotates by ten degrees, and then is temporarily stopped, and waits for about ten seconds, and during the ten seconds, the two distance sensors 22 measure the wall thickness of the small head end at this position.

[0055] In the embodiment, the maximum rotation distance of the motor 35 is one hundred and eighty degrees, and during the rotation process of the arc-shaped plate 33, the arc-shaped plate 33 does not contact the connecting plate 34.

[0056] The wall thickness values of the small head end at multiple positions can be quickly calculated by the external receiving device.

[0057] The embodiments of the specific implementation mode are the preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape, principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A connecting rod wall thickness measuring tool, comprising a tool body (1), the tool body (1) comprising a base plate (11), the top of the base plate (11) being provided with a large end positioning block (12) by means of a bolt, and the top of the base plate (11) being further provided with a fixing portion, characterized in that, The top of the bottom plate (11) is provided with a small end wall thickness measuring assembly (2), and a fixed part is located between the large end positioning block (12) and the small end wall thickness measuring assembly (2); The small end wall thickness measuring assembly (2) comprises two vertical rods (21), and a distance sensor (22) is fixedly installed on one side of the lower half of each vertical rod (21); the two distance sensors (22) are oppositely arranged, one of which is located in the small end hole of the connecting rod, and the other is located outside the small end of the connecting rod; The small end wall thickness measuring assembly (2) further comprises a lifting assembly (3) for driving the two vertical rods (21) to move synchronously.

2. A connecting rod wall thickness measurement tool as claimed in claim 1, wherein: The lifting assembly (3) comprises a support frame (31) fixedly arranged on the bottom plate (11), and a first telescopic part (32) fixedly penetrating the support frame (31) is arranged on the support frame (31). An arc-shaped plate (33) is fixedly sleeved on the upper half of one of the vertical rods (21), and the other vertical rod (21) is slidably connected with the arc-shaped plate (33). A connecting plate (34) is fixedly arranged at the telescopic end of the first telescopic part (32) penetrating the support frame (31), a motor (35) is arranged at the top of the vertical rod (21) fixedly connected with the arc-shaped plate (33), and the motor (35) is connected with the connecting plate (34). The output end of the motor (35) is connected with the top of the corresponding vertical rod (21).

3. A connecting rod wall thickness measuring tool according to claim 2, wherein: A first through hole (4) is formed in the arc-shaped plate (33), a guide rod (41) is horizontally arranged in the first through hole (4), a sliding block (42) is slidably arranged on the guide rod (41), and the bottom of the sliding block (42) is fixedly connected with the top of one of the vertical rods (21).

4. A connecting rod wall thickness measuring tool according to claim 3, wherein: A screw rod (5) is arranged at the top of the sliding block (42) and penetrates the first through hole (4), a nut (51) is sleeved on the outer periphery of the screw rod (5), and the bottom of the nut (51) is in contact with the top of the arc-shaped plate (33).

5. A connecting rod wall thickness measuring tool according to claim 4, wherein: The bottom of the vertical rod (21) connected with the motor (35) is conical; When the conical apex is in contact with the bottom plate, the bottom of the other vertical rod (21) is spaced apart from the bottom plate.

6. A connecting rod wall thickness measuring tool according to claim 5, wherein: The fixed part comprises a vertical rod (6), a rotating plate (61) is rotatably sleeved on the outer periphery of the vertical rod (6), a second telescopic part (62) is arranged at the top of the rotating plate (61), and a pressing block (63) is fixedly arranged at the telescopic end of the second telescopic part (62) penetrating the rotating plate (61).

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