Length measuring equipment for shaft parts
By designing a shaft-type parts length measurement device including a variety of innovative structures, the problem of large measurement errors in the prior art is solved, and higher measurement accuracy and handling are achieved.
Patent Information
- Application Number
- CN202420041850.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-08
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-01-08
AI Technical Summary
In the process of measuring length of shaft parts, due to the wide variety of parts and complex structures, it is difficult for the existing technology to accurately measure, especially when there are special structures near nodes, the measurement error is relatively large.
A length measuring device including a base of a measuring device, a scale support ruler, a measuring slider, an elastic knob, a level, an anti-deformation fixing plate, a measuring probe and a measuring claw are designed. The arc triangle structure of the elastic knob improves handling, the level reduces errors, the anti-deformation fixing plate reduces deformation errors, and the chute structure of the measuring claw and probe expands the response range.
It improves the handling of the measurement slider, reduces subtle errors during measurement, and increases the response structure range of the measuring claws, significantly improving the accuracy of measuring length of shaft parts.
Smart Images
Figure CN222579142U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a shaft part height measurement technology, in particular to a length measurement device for shaft parts. Background Art
[0002] Shaft parts are one of the typical parts often encountered in hardware accessories. They are mainly used to support transmission parts, transmit torque and bear loads. According to the different structural forms of shaft parts, they can generally be divided into three categories: smooth shaft, stepped shaft and special-shaped shaft; or divided into solid shaft, hollow shaft, etc. In industrial products, shaft parts are suitable for one or more CNC machine tool parts maintenance operations. They are used in the machine to support transmission parts such as gears and pulleys to transmit torque or motion. Shaft parts are rotating parts with a length greater than the diameter. They are generally composed of the outer cylindrical surface, conical surface, inner hole and thread of the concentric shaft and the corresponding end face. A shaft with an aspect ratio of less than 5 is called a short shaft, and a shaft with an aspect ratio of more than 20 is called a slender shaft. Most shafts are in between the two. In order to determine the position of the shaft, the journal that plays a supporting role usually has higher dimensional accuracy requirements (IT5~IT7). The dimensional accuracy requirements of the journal of the assembled transmission parts are generally lower. In the process of measuring the length of some shaft parts, due to the large number of types of shaft parts and the special or complex structures, the height of a certain node of the shaft part must be measured during measurement. However, there may be special structures near the node, so the measuring claws need corresponding functions. Utility Model Content
[0003] The purpose of the utility model is to provide a length measuring device for shaft parts to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a length measuring device for shaft parts comprises a measuring device base and a scale support ruler, a measuring slider is sleeved on the scale support ruler, and the measuring slider and the scale support ruler are connected by a tension knob.
[0005] Preferably, a level is installed on the side surface of the measuring device base, and the level is installed in a rectangular groove opened on the side surface of the measuring device base.
[0006] Preferably, the tension knob is an overall triangle, and the corners are provided with a certain curvature, and a wavy anti-slip pattern is sleeved on the surface of the tension knob.
[0007] Preferably, the measuring slider is a rectangular semi-enclosed shell structure sleeved on the scale support ruler, and a measuring probe is connected to the lower end of the side surface of the measuring slider. The measuring probe and the measuring slider are connected by an anti-deformation fixing plate.
[0008] Preferably, a "T"-shaped slide groove is provided on the lower surface of the measuring probe, and the slide groove is connected to the measuring claw, and the measuring claw is a "T"-shaped slider structure that fits the slide groove.
[0009] Preferably, a measuring claw knob is installed on the lower surface of the measuring claw, and a hard alloy is arranged at the tip of the measuring claw.
[0010] Compared with the prior art, the beneficial effects of the utility model are: the controllability of the measuring slider can be improved through the tension knob with an arc triangular structure, while the level and the anti-deformation fixing plate can greatly reduce slight errors during measurement, and the slide groove structure between the measuring claw and the measuring probe can increase the corresponding structural range of the measuring claw. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0012] Figure 2 It is a schematic diagram of the overall structure of the utility model.
[0013] Figure 3 It is a partial structural schematic diagram of the utility model.
[0014] Figure 4 It is a partial structural schematic diagram of the utility model.
[0015] In the figure: 1. Equipment base; 2. Level; 3. Scale support ruler; 4. Measuring slide; 5. Tension knob; 6. Anti-deformation fixing plate; 7. Measuring probe; 8. Measuring claw knob; 9. Measuring claw; 10. Carbide. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] See also Figure 1-Figure 4 The utility model provides a technical solution: a length measuring device for shaft parts comprises a measuring device base 1 and a scale support ruler 3, a measuring slider 4 is sleeved on the scale support ruler 3, and the measuring slider 4 and the scale support ruler 3 are connected by a tension knob 5.
[0018] A level 2 is installed on the side surface of the measuring device base 1. The level 2 is installed in a rectangular groove opened on the side surface of the measuring device base 1. The level 2 is a tubular structure containing liquid and bubbles. Through the action of the level 2, the device can judge whether the location where the device is placed is in a horizontal state when performing measurement operations, thereby reducing the measurement error of the device.
[0019] The tension knob 5 is an overall triangle with certain curvature at its corners. A wavy anti-skid pattern is sleeved on the surface of the tension knob 5. The triangular structure with curved corners, combined with the anti-skid pattern of the rubber material, makes the measuring slider 4 more controllable during use.
[0020] The measuring slider 4 is a rectangular semi-enclosed shell structure sleeved on the scale support ruler 3. The measuring probe 7 is connected to the lower end of the side surface of the measuring slider 4. The measuring probe 7 and the measuring slider 4 are connected by an anti-deformation fixing plate 6. Since the measuring probe 7 is a convex structure, when the measuring claw 9 presses against the measured part, it may be subjected to a certain elastic deformation, resulting in slight errors in the measurement. The anti-deformation fixing plate 6 can minimize the deformation of the measuring probe 7.
[0021] A "T"-shaped slide groove is provided on the lower surface of the measuring probe 7, and the slide groove is connected to the measuring claw 9. The measuring claw 9 is a "T"-shaped slider structure that fits the slide groove. The setting of the slide groove structure enables the measuring claw 9 to be extended by the slide groove to achieve the measurement purpose when the measuring claw 9 is blocked by the structure of the part itself when measuring the height of a specified part.
[0022] A measuring claw knob 8 is mounted on the lower surface of the measuring claw 9 , and a hard alloy 10 is provided at the tip of the measuring claw 9 .
[0023] When the utility model is in use, the device base 1 is first placed on a plane, and a level meter is used to determine whether the placed position is a horizontal plane 2, and the shaft parts to be measured are placed on the upper surface of the device base 1, and the measuring slider 4 is controlled by twisting the tension knob 5 so that the measuring claw 9 connected to the measuring slider 4 is against the surface to be measured. If the length is not enough, the length of the measuring claw 9 is controlled by the measuring claw knob 8, and finally the scale on the scale support ruler 3 and the scale of the measuring slider 4 are read to obtain the final data.
[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A length measuring device for shaft parts, comprising a measuring device base (1) and a scale support ruler (3), characterized in that: A measuring slider (4) is sleeved on the scale support ruler (3), and the measuring slider (4) and the scale support ruler (3) are connected via a loosening knob (5). The measuring slider (4) is a rectangular semi-enclosed shell structure sleeved on the scale support ruler (3). A measuring probe (7) is connected to the lower end of the side surface of the measuring slider (4). The measuring probe (7) and the measuring slider (4) are connected via an anti-deformation fixing plate (6). A "T"-shaped sliding groove is provided on the lower surface of the measuring probe (7), and the sliding groove is connected to a measuring claw (9). The measuring claw (9) is a "T"-shaped slider structure that fits the sliding groove. A measuring claw knob (8) is installed on the lower surface of the measuring claw (9), and a hard alloy (10) is provided at the tip of the measuring claw (9).
2. The length measuring device for shaft parts according to claim 1, characterized in that: A level (2) is installed on the side surface of the measuring device base (1), and the level (2) is installed in a rectangular groove opened on the side surface of the measuring device base (1).
3. The length measuring device for shaft parts according to claim 1, characterized in that: The tension knob (5) is an overall triangle, and the corners are provided with a certain curvature, and a wavy anti-slip pattern is sleeved on the surface of the tension knob (5).