Measuring device for spherical profile of rocker arm

Abstract

The utility model relates to a measuring device for a spherical profile of a rocker arm. The measuring device comprises a dial indicator, a bracket, a bottom plate, a transmission block, a base, a measuring rod, a spring, a positioning core and a mounting pin shaft, the support and the base are both fixed on the upper surface of the bottom plate, the dial indicator is fixedly installed on the support, a step hole is formed in the base, the measuring rod is installed in the step hole of the base in a sliding mode, the spring is sleeved on the measuring rod, the positioning core is fixedly installed on the upper end portion of the measuring rod, and a notch is formed in the base corresponding to the lower portion of the step hole. And a transmission block is hinged in the gap through a mounting pin shaft and is in contact with the lower end part of the measuring rod and the measuring head of the dial indicator. According to the utility model, the measuring speed is fast, the accuracy of the measuring result is high, manpower and material resources can be reduced, and the product quality can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of measuring devices, and specifically discloses a measuring device for the spherical surface contour of a rocker arm. Background Art

[0002] There is a light hole on the spherical surface of the rocker arm. During the processing of the rocker arm, as the tool wears or the tool is replaced, the spherical surface contour size will change. At present, after the rocker arm is processed, it will be sent to the inspection room and measured by a coordinate measuring machine. The waiting time for the detection data is relatively long, and the tool compensation cannot be changed in time on site, resulting in production delays or part out-of-tolerance on site. Therefore, a measuring device for the spherical surface contour of a rocker arm is needed at the processing site. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies existing in the prior art and provide a measuring device for the spherical surface contour of a rocker arm with fast measuring speed and high measurement result accuracy.

[0004] According to the technical solution provided by the utility model, the measuring device for the spherical surface contour of the rocker arm includes a dial indicator, a bracket, a base plate, a transfer block, a base, a measuring rod, a spring, a positioning core and a mounting pin shaft;

[0005] The bracket and the base are both fixed on the upper surface of the base plate. A dial indicator is fixedly installed on the bracket. A stepped hole is provided in the base. A measuring rod is slidably installed in the stepped hole of the base. A spring is sleeved on the measuring rod. A positioning core is fixedly installed at the upper end of the measuring rod. A notch is provided in the base corresponding to the lower part of the stepped hole. A transfer block is hinged in the notch through a mounting pin shaft. The transfer block is in contact with the lower end of the measuring rod and the measuring head of the dial indicator.

[0006] Preferably, a limit bolt is installed on the base, and a limit groove is provided on the outer circle of the measuring rod. The limit bolt is embedded in the limit groove.

[0007] Preferably, a limit hole is provided in the transfer block, and a limit pin is fixed on the base corresponding to the notch position. The diameter of the limit pin is smaller than the diameter of the limit hole, and the limit pin is inserted into the limit hole.

[0008] Preferably, a gauge sleeve is fixed in the bracket. The measuring rod of the dial indicator is installed in the gauge sleeve. The measuring rod of the dial indicator is perpendicular to the measuring rod. An elastic clamping part is provided on the gauge sleeve, and a gauge clip is installed outside the elastic clamping part.

[0009] The utility model has a fast measuring speed and high measurement result accuracy. Using the utility model can reduce manpower and material resources and help improve product quality. Brief Description of the Drawings

[0010] Figure 1It is a schematic structural view of the present utility model.

[0011] Figure 2 is Figure 1 the A-A sectional view of

[0012] Figure 3 It is a three-dimensional view of the bracket in the present utility model.

[0013] Figure 4 It is a three-dimensional view of the base in the present utility model.

[0014] Figure 5 It is a three-dimensional view of the watch case in the present utility model.

[0015] Figure 6 It is a three-dimensional view of the watch clip in the present utility model. Specific embodiments

[0016] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present utility model.

[0017] A measuring device for the spherical contour of a rocker arm, as Figures 1-6 shown, it includes a dial indicator 1, a bracket 2, a base plate 3, a transfer block 4, a base 5, a measuring rod 6, a spring 7, a positioning core 8 and a mounting pin shaft 9;

[0018] The bracket 2 and the base 5 are both fixed on the upper surface of the base plate 3. A dial indicator 1 is fixedly installed on the bracket 2. A stepped hole is provided in the base 5. A measuring rod 6 is slidably installed in the stepped hole of the base 5. A spring 7 is sleeved on the measuring rod 6. A positioning core 8 is fixedly installed at the upper end of the measuring rod 6. The positioning core 8 is used to position the optical hole center of the rocker arm spherical surface. A notch is provided in the base 5 corresponding to the lower part of the stepped hole. A transfer block 4 is hinged in the notch through a mounting pin shaft 9. The transfer block 4 is in contact with the lower end of the measuring rod 6 and the measuring head of the dial indicator 1.

[0019] A limit bolt 10 is installed on the base 5. A limit groove 6.1 is provided on the outer circle of the measuring rod 6. The limit bolt 10 is embedded in the limit groove 6.1.

[0020] A limit hole 4.1 is provided in the transfer block 4. A limit pin 11 is fixed on the base 5 corresponding to the notch position. The diameter of the limit pin 11 is smaller than the diameter of the limit hole 4.1. The limit pin 11 is inserted into the limit hole 4.1.

[0021] A dial gauge sleeve 12 is fixed inside the bracket 2. The measuring rod of the dial gauge 1 is installed inside the dial gauge sleeve 12. The measuring rod of the dial gauge 1 is perpendicularly arranged with the measuring rod 6. An elastic clamping part 12.1 is provided on the dial gauge sleeve 12, and a dial gauge clamp 13 is installed outside the elastic clamping part 12.1.

[0022] During the assembly of the present utility model, the base 5 is locked to the upper surface of the bottom plate 3 with screws. The transfer block 4 is inserted into the notch of the base 5, and the transfer block 4 and the base 5 are connected with the mounting pin shaft 9 so that the transfer block 4 can swing around the mounting pin shaft 9. The limit pin 11 is inserted through the limit hole 4.1 and then installed on the base 5. The positioning core 8 is installed at the upper end of the measuring rod 6. The spring 7 is sleeved on the measuring rod 6, and then the measuring rod 6 is inserted into the stepped hole of the base 5 so that the lower end of the measuring rod 6 contacts the transfer block 4. A limit bolt 10 is installed on the base 5 below the spring 7, and the limit bolt 10 is embedded in the limit groove 6.1 formed on the outer circle of the measuring rod 6. The bracket 2 is locked to the upper surface of the bottom plate 3 with screws. One end of the dial gauge sleeve 12 is screwed into the threaded hole of the bracket 2. The measuring rod of the dial gauge 1 is inserted into the dial gauge sleeve 12 so that the measuring head of the dial gauge 1 contacts the transfer block 4. Then the dial gauge clamp 13 is sleeved on the elastic clamping part 12.1 of the dial gauge sleeve 12, and the dial gauge clamp 13 is tightened with screws so that the elastic clamping part 12.1 clamps the measuring rod of the dial gauge 1.

[0023] In the present utility model, the limit bolt 10 cooperates with the limit groove 6.1 to limit the up and down movement stroke of the measuring rod 6 and can also prevent the measuring rod 6 from falling out.

[0024] In the present utility model, the limit pin 11 cooperates with the limit hole 4.1 to limit the swing amplitude of the transfer block 4 and prevent the transfer block 4 from swinging too much.

[0025] During operation, the spherical end of the rocker arm is pressed on the upper end surface of the base 5 so that the light hole of the spherical surface contacts the positioning core 8, causing the measuring rod 6 to move downward against the elastic force of the spring 7. The lower end of the measuring rod 6 touches the transfer block 4, causing the transfer block 4 to swing around the mounting pin shaft 9. When the transfer block 4 swings, it pushes the measuring head of the dial gauge 1, and thus it is reflected in the dial gauge 1 and the value is read. After the measurement is completed, the rocker arm is removed, and the measuring rod 6 resets under the elastic force of the spring 7.

[0026] The whole measurement process is fast and the measurement result is highly accurate. Using the present utility model can reduce manpower and material resources and contribute to improving the quality of the product (i.e., the rocker arm).

[0027] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit them. Although the present utility model has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A device for measuring the spherical profile of a rocker arm, characterized by: It comprises a dial indicator (1), a bracket (2), a base plate (3), a transfer block (4), a base (5), a measuring rod (6), a spring (7), a positioning core (8) and a mounting pin (9); The bracket (2) and the base (5) are both fixed on the upper surface of the bottom plate (3), a dial indicator (1) is fixedly mounted on the bracket (2), a step hole is opened in the base (5), a measuring rod (6) is slidably mounted in the step hole of the base (5), a spring (7) is sleeved on the measuring rod (6), a positioning core (8) is fixedly mounted on the upper end of the measuring rod (6), a notch is opened on the base (5) below the corresponding step hole, a transmission block (4) is hinged in the notch through an installation pin (9), and the transmission block (4) contacts the lower end of the measuring rod (6) and the probe of the dial indicator (1).

2. The rocker arm spherical profile measuring device as claimed in claim 1, characterized in that: A limiting bolt (10) is mounted on the base (5), a limiting groove (6.1) is provided on the outer circle of the measuring rod (6), and the limiting bolt (10) is embedded in the limiting groove (6.1).

3. The rocker arm spherical profile measuring device as claimed in claim 1, characterized in that: A limiting hole (4.1) is provided on the transmission block (4), and a limiting pin (11) is fixed on the base (5) at a position corresponding to the notch. The diameter of the limiting pin (11) is smaller than the diameter of the limiting hole (4.1), and the limiting pin (11) is inserted into the limiting hole (4.1).

4. The rocker arm spherical profile measuring device as claimed in claim 1, characterized in that: A gauge sleeve (12) is fixed in the bracket (2), a measuring rod of the dial gauge (1) is installed in the gauge sleeve (12), the measuring rod of the dial gauge (1) and the measuring rod (6) are arranged vertically, an elastic clamping portion (12.1) is provided on the gauge sleeve (12), and a gauge clamp (13) is installed outside the elastic clamping portion (12.1).

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