Simulation device for outer diameter measurement training

Abstract

The utility model discloses a simulation device for external diameter measurement training, which relates to the field of measurement teaching aids and comprises a base, a vertical shaft is fixed on the base, a transverse shaft is fixed on the vertical shaft, two ends of the transverse shaft are respectively connected with a replaceable fixed joint and a replaceable movable joint, and the movable joint is connected onto the transverse shaft through a distance adjusting device. The ends, away from the transverse shaft, of the fixed connector and the movable connector are matched cambered surfaces. According to the utility model, through the distance adjusting device, an external diameter simulation object with a continuous change in a certain range is provided between the movable joint and the fixed joint, and a traditional precision forming device is replaced as a training tool. The device can be used for training a large number of precision assembly operators to master operation and use methods of outer diameter measuring tools such as a spiral micrometer and a vernier caliper. The device is simple in structure, small in size, low in cost and convenient to use, and can be widely applied to practical teaching training of spiral micrometer gauges, vernier calipers and other measuring tools in vocational colleges, training institutions and other places.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of measurement teaching aid, especially a simulation device for outside diameter measurement training. BACKGROUND

[0002] In engineering, outside diameter is usually an important index for measuring product quality, and in some precision assembly fields, outside diameter measurement is also required for some high-precision devices, so outside diameter measurement is a very important process, and it is crucial for operators to master the operation and use method of outside diameter measurement tools.

[0003] Traditional outside diameter measurement methods are mostly contact methods, such as calipers, vernier calipers, screw micrometers, etc. The existing training for operators is mostly direct training using various precision molded devices. On the one hand, the precision molded devices may be worn out during the training process. On the other hand, the precision molded devices are expensive and limited in quantity, so it is difficult to meet the needs of a large number of operators for simultaneous training. Therefore, a simulation device for outside diameter measurement training is proposed. SUMMARY

[0004] The utility model intends to provide a simulation device for outside diameter measurement training to solve the problem that precision molded devices are difficult to meet the needs of a large number of operators for simultaneous training.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A simulation device for outside diameter measurement training, comprising a base, a vertical shaft fixed on the base, a horizontal shaft fixed at one end of the vertical shaft away from the base, a replaceable fixed joint and a movable joint connected to the two ends of the horizontal shaft respectively, a distance adjusting device connecting the movable joint to the horizontal shaft, and the ends of the fixed joint and the movable joint away from the horizontal shaft being matched arc surfaces.

[0007] Further, the distance adjusting device comprises a distance adjusting shaft and a differential sleeve, the differential sleeve is provided with a scale, one end of the differential sleeve is rotatably connected to the horizontal shaft, the differential sleeve is sleeved on the distance adjusting shaft, the distance adjusting shaft comprises a distance indicating shaft, a threaded shaft and a fixed shaft, the distance indicating shaft is connected to the fixed shaft through the threaded shaft, the threaded shaft is threadedly connected to the differential sleeve, the distance indicating shaft is provided at one end away from the horizontal shaft, the distance indicating shaft is provided with a scale, the fixed shaft is arranged in a recessed accommodating chamber at one end of the horizontal shaft, and the fixed shaft is provided with a locking device and a limiting device.

[0008] Further, the pitch of the threads on the threaded shaft is 0.5 mm, the scale on the differential sleeve divides one circle of the differential sleeve into 50 divisions, and the scale on the distance indicating shaft displays the distance moved by the distance adjusting shaft.

[0009] Further, the locking device comprises a locking screw, which is in threaded connection with the side surface of the fixing shaft, and the locking screw passes through the sliding groove in the side surface of the horizontal shaft accommodating chamber, and rotating the locking screw can tightly fix the fixing shaft and the horizontal shaft.

[0010] Further, the limiting device comprises a limiting convex point and a limiting groove, the limiting convex point is arranged on the side surface of the fixing shaft, and the limiting groove is arranged on the side surface of the horizontal shaft accommodating chamber, and the limiting convex point and the limiting groove are in sliding connection.

[0011] Further, the movable joint and the fixed joint are in threaded connection on the horizontal shaft and the distance adjusting device.

[0012] Further, the base, the vertical shaft and the horizontal shaft are connected by welding.

[0013] Further, the base, the vertical shaft or the horizontal shaft is engraved with the value of the base length, and the base length is the straight line distance between the farthest point of the arc surface of the movable joint relative to the arc surface of the fixed joint when the displacement amount of the distance adjusting device is zero.

[0014] Further, the movable joint and the fixed joint have different arc surface styles and outer diameter models.

[0015] Principles and beneficial effects of the technical solution:

[0016] The base of the utility model is used for fixing the training device on the training table, the movable joint is moved relative to the horizontal shaft through the distance adjusting device, and a certain range of continuously variable outer diameter simulation objects are provided between the movable joint and the fixed joint. The utility model replaces the traditional precision forming device as a training tool, and one utility model can simulate precision forming devices with different outer diameters, thereby greatly saving cost and enabling the precision assembly operator to master the operation and use method of the outer diameter measuring tool such as the screw micrometer and the vernier caliper. The utility model has the advantages of simple structure, small size, low cost, convenience and wide application in vocational colleges, training institutions and other places for the practical training and teaching training of the screw micrometer and the vernier caliper. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a whole schematic view of a simulation device for outer diameter measurement training.

[0018] Fig. 2 It is a partial sectional view of a simulation device for outer diameter measurement training.

[0019] Fig. 3 It is a distance adjusting shaft schematic view of a simulation device for outer diameter measurement training.

[0020] The reference signs in the drawings of the specification include:

[0021] 1. Base; 2. Vertical axis; 3. Horizontal axis; 4. Fixed joint; 5. Moving joint; 6. Curved surface; 7. Adjustment device; 701. Adjustment shaft; 7011. Distance indicator shaft; 7012. Threaded shaft; 7013. Fixed shaft; 702. Micrometer sleeve; 8. Locking device; 801. Locking screw; 802. Slide groove; 9. Limiting device; 901. Limiting protrusion; 902. Limiting groove; 10. Scale. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0023] like Figs. 1-3 As shown, a simulation device for training in outer diameter measurement includes a base 1, a vertical shaft 2 fixed on the base 1, a horizontal shaft 3 fixed at the end of the vertical shaft 2 away from the base 1, and replaceable fixed joints 4 and movable joints 5 connected to the two ends of the horizontal shaft 3 respectively. The movable joints 5 are connected to the horizontal shaft 3 through an adjustment device 7. The ends of the fixed joints 4 and the movable joints 5 away from the horizontal shaft 3 are both matching arc surfaces 6.

[0024] The fixed joint 4 is threaded to the horizontal shaft 3, and the movable joint 5 is threaded to the adjusting device 7. The movable joint 5 and the fixed joint 4 have different arc surface 6 styles and outer diameter models. The appropriate arc surface 6 style and outer diameter model of the movable joint 5 and the fixed joint 4 can be selected according to the actual situation. For example, when simulating the measurement of the outer diameter of a sphere, a circular arc surface 6 and a suitable outer diameter model can be selected, while when simulating the measurement of the outer diameter of a cylinder, a cylindrical arc surface 6 and a suitable outer diameter model can be selected.

[0025] The base 1, vertical axis 2, and horizontal axis 3 are connected by welding, and the vertical axis 2 and horizontal axis 3 form a T-shape to obtain better stability and ensure that the simulation device will not shake or tip over during use, while also facilitating measurement and learning for students.

[0026] The adjusting device 7 includes an adjusting shaft 701 and a differential sleeve 702. The differential sleeve 702 has a scale 10 around its circumference. The differential sleeve 702 is rotatably connected to one end of the horizontal shaft 3. The differential sleeve 702 is sleeved onto the adjusting shaft 701. The adjusting shaft 701 includes a distance indicator shaft 7011, a threaded shaft 7012, and a fixed shaft 7013. The distance indicator shaft 7011 and the fixed shaft 7013 are connected by the threaded shaft 7012. The threaded shaft 7012 and the differential sleeve 702 are threadedly connected. The distance indicator shaft 7011 is located at the end away from the horizontal shaft 3. The distance indicator shaft 7011 is provided with a scale 10. The fixed shaft 7013 is located in the recessed receiving cavity at one end of the horizontal shaft 3. The fixed shaft 7013 is provided with a locking device 8 and a limiting device 9. When adjusting the distance, rotate the differential sleeve 702. The differential sleeve 702 rotates relative to the horizontal axis 3. Since the threaded shaft 7012 and the differential sleeve 702 form a threaded connection, the adjusting shaft 701 moves relative to it. The lateral displacement of the adjusting device 7 can be known through the scale 10 on the differential sleeve 702 and the distance indicator shaft 7011.

[0027] The base length is engraved on the base 1, vertical axis 2 or horizontal axis 3. The base length is the straight distance between the arc surface 6 of the moving joint 5 and the arc surface 6 of the fixed joint 4 when the displacement of the adjusting device 7 is zero. The simulated outer diameter length can be obtained by adding the lateral displacement of the adjusting device 7 to the base length.

[0028] The thread pitch on the threaded shaft 7012 is 0.5mm. The scale 10 on the differential sleeve 702 divides one revolution of the differential sleeve 702 into 50 equal divisions. The scale 10 on the distance adjustment shaft 7011 shows the distance moved by the distance adjustment shaft 701. When the differential sleeve 702 rotates one revolution, the distance adjustment shaft 701 moves 0.5mm, dividing one revolution of the differential sleeve 702 into 50 equal divisions. Its accuracy is 0.01, which can meet the accuracy required for simulating precision molded devices. By changing the number of divisions on the differential sleeve 702, other accuracies can be obtained. By comparing the measured reading with the simulated outer diameter length reading, the measurement trainee can judge their own measurement accuracy and make corresponding adjustments and improvements in the next measurement, thus achieving the training purpose.

[0029] The locking device 8 includes a locking screw 801, which is threaded to the side of the fixed shaft 7013. The locking screw 801 passes through the groove 802 on the side of the receiving chamber of the transverse shaft 3. Rotating the locking screw 801 will tighten the fixed shaft 7013 against the transverse shaft 3. After selecting a suitable simulated outer diameter length, tightening the locking screw 801 will tighten the fixed shaft 7013 against the transverse shaft 3 to prevent the differential sleeve 702 from being touched during multiple training sessions, which could cause an unexpected change in the simulated outer diameter length and affect the training effect.

[0030] The limiting device 9 includes a limiting protrusion 901 and a limiting groove 902. The limiting protrusion 901 is disposed on the side of the fixed shaft 7013, and the limiting groove 902 is disposed on the side of the receiving chamber of the horizontal shaft 3. The limiting protrusion 901 and the limiting groove 902 form a sliding connection. The limiting protrusion 901 cooperates with the sliding groove 802 on the horizontal shaft 3 to prevent the radial direction of the adjusting shaft 701 relative to the horizontal shaft 3 from changing.

[0031] The specific implementation process is as follows:

[0032] During simulation training, select the appropriate model of moving joint 5 and fixed joint 4 and connect them to the horizontal shaft 3 or the adjusting device 7 via threads. Then, rotate the differential sleeve 702 of the adjusting device 7 to select the appropriate simulated outer diameter length. Tighten the locking screw 801 to fix the adjusting shaft 701. Finally, select the appropriate measuring tool to perform the measurement and compare the reading with the simulated outer diameter length to judge the measurement accuracy. Make corresponding adjustments and improvements in the next measurement to achieve the training purpose.

[0033] This utility model has a simple structure, small size, low cost, and is easy to use. It can be widely used in vocational schools, training institutions and other places for practical teaching and training of measuring tools such as micrometers and vernier calipers.

[0034] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A simulation device for training in outer diameter measurement, characterized in that: Includes a base (1), on which a vertical shaft (2) is fixed, and a horizontal shaft (3) is fixed at one end of the vertical shaft (2) away from the base (1). Replaceable fixed joints (4) and movable joints (5) are respectively connected to the two ends of the horizontal shaft (3). The movable joint (5) is connected to the horizontal shaft (3) through an adjustment device (7). The ends of the fixed joint (4) and the movable joint (5) away from the horizontal shaft (3) are both matching arc surfaces (6).

2. The simulation device for outer diameter measurement training according to claim 1, characterized in that: The adjusting device (7) includes an adjusting shaft (701) and a differential sleeve (702). The differential sleeve (702) has a scale (10) around its circumference. The differential sleeve (702) is rotatably connected to one end of the horizontal shaft (3). The differential sleeve (702) is sleeved onto the adjusting shaft (701). The adjusting shaft (701) includes a distance indicator shaft (7011), a threaded shaft (7012), and a fixed shaft (7013). The distance indicator shaft (7011) and... The fixed shaft (7013) is connected by a threaded shaft (7012), which forms a threaded connection with the differential sleeve (702). The distance indicator shaft (7011) is located at one end away from the horizontal axis (3). The distance indicator shaft (7011) is provided with a scale (10). The fixed shaft (7013) is located in a recessed receiving cavity at one end of the horizontal axis (3). The fixed shaft (7013) is provided with a locking device (8) and a limiting device (9).

3. The simulation device for outer diameter measurement training according to claim 2, characterized in that: The thread pitch on the threaded shaft (7012) is 0.5mm. The scale (10) on the differential sleeve (702) divides one circle of the differential sleeve (702) into 50 divisions. The scale (10) on the distance indicator shaft (7011) shows the distance moved by the distance adjustment shaft (701).

4. The simulation device for outer diameter measurement training according to claim 2, characterized in that: The locking device (8) includes a locking screw (801), which is threadedly connected to the side of the fixed shaft (7013). The locking screw (801) passes through the groove (802) on the side of the receiving chamber of the transverse shaft (3). Rotating the locking screw (801) will tighten and fix the fixed shaft (7013) and the transverse shaft (3).

5. A simulation device for outer diameter measurement training according to claim 2, characterized in that: The limiting device (9) includes a limiting protrusion (901) and a limiting groove (902). The limiting protrusion (901) is located on the side of the fixed shaft (7013), and the limiting groove (902) is located on the side of the receiving chamber of the transverse shaft (3). The limiting protrusion (901) and the limiting groove (902) form a sliding connection.

6. The simulation device for outer diameter measurement training according to claim 1, characterized in that: The movable joint (5) and the fixed joint (4) are connected to the horizontal shaft (3) and the adjusting device (7) by threads.

7. The simulation device for outer diameter measurement training according to claim 1, characterized in that: The base (1), vertical shaft (2) and horizontal shaft (3) are connected by welding.

8. The simulation device for outer diameter measurement training according to any one of claims 1-7, characterized in that: The base (1), vertical axis (2) or horizontal axis (3) are engraved with the base length value. The base length is the straight distance between the arc surface (6) of the moving joint (5) and the arc surface (6) of the fixed joint (4) when the displacement of the adjusting device (7) is zero.

9. A simulation device for training in outer diameter measurement according to claim 8, characterized in that: The movable joint (5) and the fixed joint (4) have different arc surface (6) styles and outer diameters.

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