Measurement tool used after balance shaft processing

Abstract

The utility model relates to a balance shaft post-processing measuring tool, and relates to the field of balance shafts, the balance shaft post-processing measuring tool comprises a tool table, a positioning clamp arranged on the tool table and a sample clamp arranged on the tool table, the tool table is provided with a supporting frame, and the supporting frame is slidably connected with a mounting seat; a first measuring rod and a second measuring rod are slidably connected to the mounting seat, a transmission gear is rotatably connected to the mounting seat, the first measuring rod and the second measuring rod are meshed with the transmission gear and located on the two opposite sides of the transmission gear respectively, the mounting seat is provided with a driving part, and the driving part drives the first measuring rod to abut against the surface of the calibration part. The second measuring rod abuts against the balance shaft to be measured, the installation base is located between the positioning clamp and the sample clamp, and the second measuring rod is provided with a detection piece used for detecting the bending degree. When the surface curvature of the to-be-measured workpiece is different from that of the sample, the indication value of the detection piece at the second measuring rod changes, the results of the calibration piece and the to-be-measured balance shaft do not need to be compared respectively, and the detection steps are simplified.

Description

TECHNICAL FIELD

[0001] The utility model belongs to balanced axle technical field, especially point to a kind of balanced axle processing after measuring tool. BACKGROUND

[0002] Balanced axle is an axle equipped with eccentric weight and rotates synchronously with crankshaft, using the reverse vibration force generated by eccentric weight, so that engine obtains good balancing effect, thereby reducing the vibration of engine. After balanced axle is processed, in order to ensure that its quality and performance meet design requirements, after processing, the bending degree of balanced axle needs to be detected.

[0003] As the Chinese utility model patent with patent announcement number CN220982169U discloses a kind of balanced axle bending degree detection tool, including tool table, the balanced axle positioning block is equipped on the tool table, the balanced axle positioning block is equipped with limit plate on both sides, the balanced axle positioning block front of tool table is equipped with detection part, the detection part includes the cylinder seat being arranged on the tool table, the dial gauge mounting seat and cylinder being arranged on cylinder seat, the switch for controlling cylinder being arranged on the side of tool table, the dial gauge being arranged on dial gauge mounting seat, the cross bar being connected with the measuring rod of dial gauge, the U-shaped fork for lifting the cross bar being connected with the piston rod of cylinder.

[0004] Balanced axle includes straight shaft and crankshaft, and the surface bending degree of different models balanced axle is different, when using the above balanced axle bending degree detection tool to different models balanced axle, need to detect calibration piece first by detection part, then detect parallel shaft to be detected, compare two groups of data again, detection step is more complex, and there is room for improvement. SUMMARY

[0005] To simplify detection step, the utility model provides a kind of balanced axle processing after measuring tool.

[0006] The utility model is realized as follows:

[0007] The application discloses a kind of balanced shaft processing after measuring tool, including tool table, positioning fixture being arranged on the tool table and sample fixture being arranged on the tool table, the tool table is equipped with support frame, the support frame is slidably connected with mounting seat, the mounting seat is slidably connected with measuring rod one and measuring rod two, the mounting seat is rotatably connected with transmission gear, the measuring rod one and the measuring rod two are engaged with the transmission gear, the measuring rod one and the measuring rod two are located at opposite sides of the transmission gear respectively, the mounting seat is equipped with driving part, the driving part drives the measuring rod one to abut against the surface of calibration element, the measuring rod two abuts against the balanced shaft to be measured, the mounting seat is located between the positioning fixture and the sample fixture, the measuring rod two is equipped with detection part for detecting curvature, the tool table is equipped with driving assembly, and the driving assembly drives the mounting seat to move.

[0008] Preferably, the measuring rod one includes a rod portion one slidably connected to the mounting seat and an abutting wheel one rotatably connected to the rod portion one, and the abutting wheel one abuts against the surface of the calibration element.

[0009] Preferably, the driving part is a spring, the rod portion one is provided with an abutting surface, and the spring abuts against the abutting surface to make the rod portion one have a tendency to move out of the mounting seat.

[0010] Preferably, the abutting wheel one and the abutting wheel two are both provided with elastic pads, and the elastic pads are arranged around the outer periphery of the abutting wheel one and the abutting wheel two.

[0011] Preferably, the rod portion two includes a main rod slidably connected to the mounting seat and a secondary rod slidably connected to the main rod, the abutting wheel two is rotatably connected to the secondary rod, the detection part includes an elastic element arranged on the main rod and a marker rod arranged on the secondary rod, the elastic element abuts against the secondary rod to make the secondary rod have a tendency to move away from the main rod, the marker rod moves out of the main rod, and the main rod is provided with a scale line.

[0012] Preferably, the main rod is provided with a plurality of convex strips, the convex strips are located at the scale line, the convex strips are arranged in a decreasing manner in a direction away from the main rod, the interface of the convex strips is a circular arc surface, the marker rod abuts against the convex strips, the marker rod can elastically deform in a direction parallel to the convex strips and the main rod, and the marker rod is clamped between adjacent convex strips.

[0013] Preferably, the positioning fixture and the sample fixture are horizontally distributed.

[0014] Preferably, the driving assembly comprises a reciprocating screw rod rotatably connected to the support base and a driving motor arranged on the tooling table, the reciprocating screw rod is threadedly connected with the mounting seat, and the driving motor drives the reciprocating screw rod to rotate.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] 1、 the utility model discloses in actual detection process, and the sample and the balance shaft to be measured are fixed respectively through positioning fixture and sample clamp, and driving measuring rod one abuts the surface of calibration piece, and measuring rod two is driven to abut the surface of balance shaft to be measured through gear, and driving assembly drives mounting seat to move, and measuring rod one slips into or extends out mounting seat according to the arc of sample surface, thereby driving measuring rod two to slip into or extend out mounting seat, when the surface curvature of workpiece to be measured is different from sample, the indication value of detection piece at measuring rod two changes, and the result of calibration piece and balance shaft to be measured need not be compared respectively, is favorable to simplify the detection step, improves detection efficiency;

[0017] 2、 the utility model discloses through setting up elastic pad on abutment wheel one and abutment wheel two, it is favorable to reduce the possibility of balance shaft damage in detection process;

[0018] 3、 the utility model discloses in the detection process, and driving assembly drives mounting seat to move along the axis of balance shaft, and if the sample surface is curved, measuring rod one abuts the sample surface and slips into or extends out, and measuring rod two is driven to move through gear, when the curvature of calibration piece and balance shaft to be measured is different, the force of measuring rod two changes, and the sub rod moves to the opposite direction with the main rod and then drives the marker rod to move and is clamped into another group of adjacent convex strips, so that the result is more conspicuous. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure schematic view of the utility model;

[0020] Figure 2 It is the sectional view of the utility model's local on mounting seat, mainly shows the structure of measuring rod one and measuring rod two;

[0021] Figure 3 It is the sectional view of the utility model's local at the main rod, mainly shows the structure of measuring rod two;

[0022] Figure 4 It is Figure 1 The enlarged view of A part in the utility model, mainly shows the structure at marker rod.

[0023] Description of the figure: 1, tooling table; 2, positioning fixture; 3, sample fixture; 4, support frame; 5, mounting seat; 51, measuring rod one; 511, rod part one; 5111, abutting surface; 512, abutting wheel one; 513, elastic pad; 52, measuring rod two; 521, rod part two; 5211, main rod; 5212, auxiliary rod; 5213, scale line; 5214, convex strip; 522, abutting wheel two; 53, transmission gear; 54, driving piece; 541, spring; 55, tooth surface; 6, driving assembly; 61, driving motor; 62, reciprocating screw; 7, detection piece; 71, elastic piece; 72, marker rod. DETAILED DESCRIPTION

[0024] The utility model will be further described below with specific examples, see Figure 1 -4:

[0025] This embodiment discloses a kind of after balance shaft processing measurement tooling.A kind of after balance shaft processing measurement tooling, see Figure 1 Including tooling table 1, positioning fixture 2 and sample fixture 3, positioning fixture 2 and sample fixture 3 are located above tooling table 1, positioning fixture 2 and sample fixture 3 are fixedly connected with tooling table 1, positioning fixture 2 and sample fixture 3 are along horizontal distribution, positioning fixture 2 and sample fixture 3 are same structure, the structure of positioning fixture 2 and sample fixture 3 is same, positioning fixture 2 is used to be fixed to the opposite ends of the balance shaft to be detected, sample fixture 3 is used to be fixed to the opposite ends of calibration piece, when calibration piece and the balance shaft to be detected are fixed, calibration piece and the axis of balance shaft are parallel, the distribution direction of sample fixture 3 and positioning fixture 2 is perpendicular to the axis of balance shaft.

[0026] See Figure 1 Tooling table 1 is fixed with support frame 4, support seat is located above tooling table 1 support frame 4 is located between sample fixture 3 and positioning fixture 2, support frame 4 is slidably connected with mounting seat 5, the sliding direction of mounting seat 5 is horizontal, the sliding direction of mounting seat 5 is perpendicular to the distribution direction of sample fixture 3 and positioning fixture 2, the distance between mounting seat 5 and positioning fixture 2 and sample fixture 3 is equal, tooling table 1 is provided with driving assembly 6, and driving assembly 6 drives mounting seat 5 to move.

[0027] See Figure 1 Driving assembly 6 includes driving motor 61 and reciprocating screw 62, and reciprocating screw 62 is rotatably connected to support frame 4.The rotation axis of reciprocating screw 62 is parallel to the sliding direction of mounting seat 5, reciprocating screw 62 is provided in mounting seat 5 and is screw-connected with mounting seat 5, driving motor 61 is fixed above tooling table 1, and driving motor 61 drives reciprocating screw 62 to rotate.

[0028] See Figure 1The measuring rod one 51 and the measuring rod two 52 are slidably connected to the mounting seat 5, the distribution direction of the measuring rod one 51 and the measuring rod two 52 is parallel to the distribution direction between the positioning clamp 2 and the sample clamp 3, the measuring rod one 51 and the measuring rod two 52 are respectively located on opposite sides of the mounting seat 5, the sliding direction of the measuring rod one 51 and the measuring rod two 52 is parallel to the distribution direction, and the measuring rod one 51 and the measuring rod two 52 slide into or out of the mounting seat 5.

[0029] Referring to Figure 1 and Figure 2 The mounting seat 5 is rotatably connected with a transmission gear 53, the rotation axis of the transmission gear 53 is parallel to the distribution direction of the mounting seat 5 and the tool table 1, the measuring rod one 51 is located on the side of the mounting seat 5 close to the sample clamp 3 and is used for abutting against the surface of the calibration piece, the measuring rod two 52 is located on the side of the mounting seat 5 close to the positioning clamp 2 and is used for abutting against the surface of the balance shaft to be measured, the tooth surface 55 is formed on the measuring rod one 51 and the measuring rod two 52, the tooth surface 55 of the measuring rod one 51 and the measuring rod two 52 is respectively located on the opposite sides of the transmission gear 53, the distribution direction between the tooth surface 55 and the transmission gear 53 is parallel to the distribution direction of the measuring rod one 51 and the measuring rod two 52, and the measuring rod one 51 and the measuring rod two 52 are meshed with the transmission gear 53, so that the moving distance between the measuring rod one 51 and the measuring rod two 52 is the same. The driving member 54 is fixed on the mounting seat 5, and the driving member 54 drives the measuring rod one 51 to move to abut against the surface of the calibration piece.

[0030] Referring to Figure 1 and Figure 2 The driving member 54 is a spring 541, the opposite ends of the spring 541 are respectively fixedly connected with the mounting seat 5 and the measuring rod one 51, the spring 541 abuts against the measuring rod one 51, so that the measuring rod one 51 has a tendency to move out of the mounting seat 5. When the measuring tool is used to detect the bending degree of the workpiece, the measuring rod one 51 is convenient to abut against calibration pieces of different models.

[0031] Referring to Figure 2 and Figure 3 The measuring rod one 51 comprises a rod part one 511 and an abutting wheel one 512, the rod part one 511 is slidably connected to the mounting seat 5, the abutting wheel one 512 is located on the side of the rod part one 511 close to the sample clamp 3, the abutting wheel one 512 is rotatably connected with the rod part one 511, the rotation axis of the abutting wheel one 512 is the same as that of the transmission gear 53, and the abutting wheel one 512 is used for abutting against the surface of the calibration piece.

[0032] Referring to Figure 1 and Figure 2The transmission gear 53 is engaged with the first rod part 511. The first rod part 511 is formed with an abutting surface 5111. The spring 541 is located at a side of the abutting surface 5111 away from the reference element. The spring 541 is fixedly connected with the first rod part 511. The spring 541 abuts against the abutting surface 5111, so that the first rod part 511 has a tendency to move out of the mounting seat 5.

[0033] Referring to Figure 2 and Figure 3 The second measuring rod 52 comprises a second rod part 521 and an abutting wheel 522. The second rod part 521 comprises a main rod 5211 and a sub-rod 5212. The main rod 5211 is slidably connected with the mounting seat 5. The main rod 5211 is engaged with the transmission gear 53. The sub-rod 5212 is located at a side of the main rod 5211 close to the positioning clamp 2. The sub-rod 5212 is slidably connected with the main rod 5211. The sub-rod 5212 slides into or out of the main rod 5211. The sliding direction of the sub-rod 5212 is parallel to the sliding direction of the main rod 5211. The abutting wheel 522 is located at a side of the sub-rod 5212 close to the positioning clamp 2. The rotating axis of the abutting wheel 522 is parallel to the rotating axis of the abutting wheel. The abutting wheel 522 is used for abutting against the surface of the balance shaft to be measured.

[0034] Referring to Figure 2 and Figure 3 The abutting wheel 512 and the abutting wheel 522 are fixedly provided with elastic pads 513. The elastic pads 513 are arranged around the outer periphery of the abutting wheel 512 and the abutting wheel 522. The abutting wheel 512 and the abutting wheel 522 abut against the reference element and the balance shaft to be measured through the elastic pads 513.

[0035] Referring to Figure 2 and Figure 4 The sub-rod 5212 is provided with a detection element 7. The detection element 7 comprises an elastic element 71 and a marker rod 72. The elastic element 71 is located at a side of the sub-rod 5212 away from the positioning clamp 2. The opposite ends of the elastic element 71 are fixedly connected with the main rod 5211 and the sub-rod 5212. The elastic element 71 abuts against the sub-rod 5212, so that the sub-rod 5212 has a tendency to move out of the main rod 5211. The marker rod 72 is located outside the main rod 5211 and the mounting seat 5. The marker rod 72 is fixedly connected with the sub-rod 5212. The main rod 5211 is formed with a scale line 5213 and a plurality of protrusions 5214. The protrusions 5214 are arranged correspondingly to the scale line 5213. The plurality of protrusions 5214 are distributed at equal intervals. The plurality of protrusions 5214 are located on the moving path of the marker rod 72. The protrusions 5214 are arranged in a decreasing manner along the direction away from the main rod 5211. The interface of the protrusions 5214 is in a circular arc shape. The marker rod 72 is elastic. The marker rod 72 can be deformed in a direction parallel to the distribution direction of the protrusions 5214 and the main rod 5211. The marker rod 72 is clamped between adjacent protrusions 5214. In this embodiment, the elastic element 71 is also a spring 541.

[0036] In the use of the measuring tool to detect different models of balance shaft, the model calibration fixture is fixed by the sample clamp 3, the spring 541 drives the rod part one 511 to move out of the mounting seat 5 to make the elastic pad 513 on the abutting wheel one 512 abut against the surface of the calibration fixture, the rod part one 511 drives the rod part two 521 to make the elastic pad 513 on the abutting wheel two 522 abut against the surface of the balance shaft to be detected through the cooperation between the transmission gear 53 and the rod part two 521, and the position of the mark rod 72 at this time is recorded. The driving motor 61 drives the reciprocating screw rod 62 to rotate to drive the mounting seat 5 to move along the axis of the balance shaft, the elastic pad 513 on the abutting wheel one 512 abuts against the surface of the calibration fixture all the time, if the curvature of the surface of the balance shaft to be detected is the same as the curvature of the surface of the calibration fixture, the positions of the main rod 5211 and the auxiliary rod 5212 remain unchanged, the position of the scale line 5213 pointed by the mark rod 72 remains unchanged, if the curvature of the surface of the balance shaft to be detected is different from the curvature of the surface of the calibration fixture, the main rod 5211 and the auxiliary rod 5212 relatively move to make the position of the mark rod 72 change, the mark rod 72 is clamped between another adjacent convex strip 5214, through the setting of the convex strip 5214, the moving speed of the mark rod 72 is reduced, and it is convenient for the staff to record.

[0037] The embodiment of the balance shaft processing and measuring tool has the advantages that if the curvature of the surface of the balance shaft to be detected is different from the curvature of the surface of the calibration fixture, the main rod 5211 and the auxiliary rod 5212 relatively move to make the position of the mark rod 72 change, in the detection process, only whether the scale pointed by the mark rod 72 changes needs to be observed, the curvature of the calibration fixture does not need to be detected and compared with the detection result, the detection process is simplified, and the detection efficiency is improved. Through the driving of the spring 541 to move the measuring rod one 51, the measuring tool is convenient to adapt to the measurement of the curvatures of balance shafts of different models.

[0038] The above embodiment is only one of the preferable embodiments of the utility model, and does not limit the implementation range of the utility model, therefore: equivalent changes made according to the shape, structure and principle of the utility model should be covered in the protection range of the utility model.

Claims

1. A balanced shaft post-machining measurement fixture, characterized by: The utility model provides a kind of balance shaft bending degree measuring device, including tooling table (1), be located on the positioning fixture (2) of tooling table (1) and be located on the sample fixture (3) of tooling table (1), support frame (4) is equipped on tooling table (1), installation seat (5) is slidably connected on support frame (4), measuring rod one (51) and measuring rod two (52) are slidably connected on installation seat (5), transmission gear (53) is rotatably connected on installation seat (5), measuring rod one (51) and measuring rod two (52) are engaged with transmission gear (53), measuring rod one (51) and measuring rod two (52) are located on the opposite sides of transmission gear (53) respectively, installation seat (5) is equipped with driving part (54), driving part (54) drives measuring rod one (51) and abuts calibration element surface, measuring rod two (52) abuts the balance shaft to be measured, installation seat (5) is located between positioning fixture (2) and sample fixture (3), measuring rod two (52) is equipped with detection part (7) for detecting curvature, tooling table (1) is equipped with driving assembly (6), and driving assembly (6) drives installation seat (5) to move.

2. The balanced shaft post-machining measurement fixture of claim 1, wherein: The measuring rod one (51) includes a rod portion one (511) slidably connected to the installation seat (5) and an abutting wheel one (512) rotatably connected to the rod portion one (511), the abutting wheel one (512) abuts the surface of the calibration element, and the measuring rod two (52) includes a rod portion two (521) slidably connected to the installation seat (5) and an abutting wheel two (522) rotatably connected to the rod portion two (521), the rod portion one (511) and the rod portion two (521) are engaged with the transmission gear (53).

3. The balanced shaft post-machining measurement fixture of claim 2, wherein: The driving part (54) is a spring (541), the rod portion one (511) is provided with an abutting surface (5111), and the spring (541) abuts the abutting surface (5111) to make the rod portion one (511) have a tendency to move out of the installation seat (5).

4. The balanced shaft post-machining measurement fixture of claim 2, wherein: The abutting wheel one (512) and the abutting wheel two (522) are each provided with an elastic pad (513) arranged around the outer periphery of the abutting wheel one (512) and the abutting wheel two (522).

5. The balanced shaft post-machining measurement fixture of claim 2, wherein: The rod portion two (521) includes a main rod (5211) slidably connected to the installation seat (5) and a secondary rod (5212) slidably connected to the main rod (5211), the abutting wheel two (522) is rotatably connected to the secondary rod (5212), the detection part (7) includes an elastic member (71) provided on the main rod (5211) and a marker rod (72) provided on the secondary rod (5212), the elastic member (71) abuts the secondary rod (5212) to make the secondary rod (5212) have a tendency to extend out of the main rod (5211), the marker rod (72) extends out of the main rod (5211), and the main rod (5211) is provided with a scale line (5213).

6. A balanced shaft post-machining measurement fixture according to claim 5, characterized in that: The main rod (5211) is provided with a plurality of convex strips (5214), the convex strips (5214) are located at the scale lines (5213), the convex strips (5214) are arranged in a tapering manner away from the main rod (5211), the interface of the convex strips (5214) is a circular arc surface, the marking rod (72) abuts against the convex strips (5214), the marking rod (72) can be elastically deformed in a direction parallel to the distribution direction of the convex strips (5214) and the main rod (5211), and the marking rod (72) is clamped between adjacent convex strips (5214).

7. The balanced shaft post-machining measurement fixture of claim 5, wherein: The positioning clamp (2) and the sample clamp (3) are horizontally distributed.

8. The balanced shaft post-machining measurement fixture of claim 1, wherein: The driving assembly (6) comprises a reciprocating screw rod (62) rotationally connected to the support frame (4) and a driving motor (61) arranged on the tooling table (1), the reciprocating screw rod (62) is threadedly connected with the mounting seat (5) penetrating through the mounting seat (5), and the driving motor (61) drives the reciprocating screw rod (62) to rotate.

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