Inspection tool for machining mechanical parts

Abstract

The utility model relates to the technical field of part inspection tools, and discloses an inspection tool for mechanical part machining, which comprises a guide cylinder, a limiting assembly and an adjustable thread detection assembly, and is characterized in that the limiting assembly comprises a connecting sleeve arranged on the guide cylinder in a transmission manner, and the connecting sleeve can axially move along the guide cylinder; an extrusion ring is arranged at the lower end of the connecting sleeve, the adjustable thread detection assembly comprises a plurality of thread detection blocks arranged on the inner side of the extrusion ring, and the thread detection blocks can move in the radial direction of the extrusion ring; through cooperative use of the guide cylinder, the limiting assembly, the adjustable thread detection assembly and the reset assembly, the detection inner diameter of the adjustable thread detection assembly is changed by adjusting the position of the limiting assembly on the guide cylinder so as to adapt to workpieces of different specifications, the damaged thread detection block can be independently replaced by dismounting the limiting assembly and a limiting rod, and the detection efficiency is improved. The maintenance cost is reduced, the operation is simple, the adaptability is high, and the maintenance cost is low.

Description

Technical Field

[0001] The present application relates to the technical field of parts inspection tools, and in particular to an inspection tool for machining mechanical parts. Background Art

[0002] In the production and processing of mechanical parts, product quality inspection is crucial to ensure that the parts meet the specified size and performance standards. Thread ring gauge is a widely used inspection tool used to measure whether the external thread size of the part is correct. It has important applications in machinery manufacturing, automobile maintenance, aerospace and other industries.

[0003] Most existing thread ring gauges are fixed-size inspection tools. The inspection inner diameter of such tools is preset, so a corresponding thread ring gauge is required for each specification of thread. Although this approach meets the inspection needs to a certain extent, it cannot adapt to workpieces of different specifications. This leads to the need to prepare thread inspection tools of various specifications in actual use, which increases inventory costs and operational complexity.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem that the detection inner diameter of existing thread ring gauges is mostly of fixed size and cannot adapt to workpieces of different specifications, the present application provides an inspection tool for machining mechanical parts.

[0006] The present application provides an inspection tool for machining mechanical parts using the following technical solution:

[0007] An inspection tool for machining mechanical parts, comprising a guide cylinder, a limit assembly and an adjustable thread detection assembly;

[0008] Wherein, the guide cylinder is used for supporting and installing the whole mechanism;

[0009] The limit assembly includes a connecting sleeve which is transmission-mounted on the guide cylinder, and the connecting sleeve can move axially along the guide cylinder, and an extrusion ring is arranged at the lower end of the connecting sleeve for adjusting the detection inner diameter of the adjustable thread detection assembly;

[0010] The adjustable thread detection assembly comprises a plurality of thread detection blocks arranged on the inner side of the extrusion ring, and the thread detection blocks can move radially along the extrusion ring to adapt to external thread workpieces of different specifications.

[0011] Preferably, threads are arranged on the inner side of the thread detection block, the cross section of the thread detection block is a right-angled trapezoid which is wide at the top and narrow at the bottom, and the outer side surface of the thread detection block is an inclined surface, and the extrusion ring is provided with a reducing bevel groove which is adapted to the thread detection block.

[0012] Preferably, the guide cylinder includes a cylinder body with a thread on the outer surface, a slide groove is provided at the bottom of the cylinder body, a slider is slidably provided in the slide groove, the slider is fixedly connected to the thread detection block, and a reset assembly is provided on the slider for elastically supporting the adjustable thread detection assembly.

[0013] Preferably, the limiting assembly further comprises a threaded ring fixedly arranged on the connecting sleeve, the threaded ring being drivingly connected to the cylinder and used for driving the extrusion ring to move axially along the cylinder to form extrusion on the threaded detection block.

[0014] Preferably, the reset assembly includes a limiting rod fixedly arranged on the inner side of the slide groove, the end of the limiting rod passes through the slider and is slidably connected to the slider, and a reset spring is slidably arranged on the limiting rod.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] Through the coordinated use of the guide cylinder, the limit assembly, the adjustable thread detection assembly and the reset assembly, the detection inner diameter of the adjustable thread detection assembly can be easily changed by manually twisting the limit assembly to adjust the position of the limit assembly on the guide cylinder, so as to adapt to workpieces of different specifications. When the inner thread of a thread detection block is damaged, the damaged thread detection block can be replaced separately by disassembling the limit assembly and the limit rod, without replacing the entire thread detection tool, thereby greatly reducing the maintenance cost. Compared with the existing technology, it has the effects of simple operation, strong adaptability and low maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a three-dimensional structure from a first-view perspective of an embodiment of the application;

[0018] Figure 2 is a schematic diagram of a second perspective stereoscopic structure of an embodiment of the application;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure from a third perspective of an embodiment of the application.

[0020] Explanation of the reference numerals: 1. Guide cylinder; 101. Cylinder body; 102. Slide groove; 2. Limiting assembly; 201. Threaded ring; 202. Connecting sleeve; 203. Extrusion ring; 3. Adjustable thread detection assembly; 301. Threaded detection block; 302. Slider; 4. Reset assembly; 401. Limiting rod; 402. Reset spring. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-3 This application is described in further detail.

[0022] The present application embodiment discloses an inspection tool for machining mechanical parts. Figure 1-3 A testing tool for machining mechanical parts comprises a guide cylinder 1, a limit assembly 2 is provided on the outer thread sleeve of the guide cylinder 1, an adjustable thread detection assembly 3 is installed on the inner side of the limit assembly 2, the adjustable thread detection assembly 3 comprises a plurality of thread detection blocks 301 movable in the radial direction, the thread detection blocks 301 are squeezed by the limit assembly 2 to move in the radial direction, and the detection inner diameter of the adjustable thread detection assembly 3 is adjusted to adapt to workpieces of different specifications.

[0023] Reference Figure 2 The guide cylinder 1 includes a cylinder body 101, and a plurality of slide grooves 102 are opened at the lower end of the side of the cylinder body 101. The plurality of slide grooves 102 are evenly distributed along the circumferential direction. A slider 302 is slidably installed in the slide groove 102. The slider 302 is fixedly connected to the thread detection block 301. The slide groove 102 is a T-shaped slide groove, and the slider 302 is a T-shaped slider adapted thereto. The slide groove 102 guides the slider 302 to move, so that the thread detection block 301 can slide smoothly.

[0024] Reference Figure 3 A thread is provided on the inner side of the thread detection block 301. The cross section of the thread detection block 301 is a right-angled trapezoid that is wide at the top and narrow at the bottom. The outer side surface of the thread detection block 301 is an inclined surface. A variable diameter thread ring gauge is formed by a plurality of thread detection blocks 301, and external thread detection of the workpiece can be performed.

[0025] Reference Figure 3 The outer surface of the cylinder 101 is preset with an external thread, and the limit assembly 2 includes a threaded ring 201 threadedly sleeved on the outer surface of the cylinder 101, a connecting sleeve 202 is installed at the lower end of the threaded ring 201, and an extrusion ring 203 is installed at the lower end of the connecting sleeve 202. A reducing groove adapted to the thread detection block 301 is opened on the inner side of the extrusion ring 203. The threaded ring 201 moves up and down along the thread of the cylinder 101, thereby driving the connecting sleeve 202 and the extrusion ring 203 to move up and down. The extrusion ring 203 squeezes and limits the slider 302, changes the detection inner diameter, and can adapt to the detection of workpieces with different diameters.

[0026] Reference Figure 3 The outer surface of the threaded ring 201 is provided with anti-slip grooves to increase friction, prevent slipping when twisted by hand, and facilitate manual adjustment by the staff. A chamfer is preset on the inner side of the top of the threaded ring 201 to expand the docking range and facilitate the insertion of the thread detection block 301 into the threaded ring 201.

[0027] Reference Figure 2A reset component 4 is installed in the slide groove 102, and a threaded hole is opened on the inner side of the slide groove 102. A limit rod 401 is installed in the threaded hole. The end of the limit rod 401 passes through the slider 302 in the radial direction and is slidably connected with the slider 302. The limit rod 401 sliding sleeve is provided with a reset spring 402, and the slider 302 is elastically supported by the reset spring 402, so that the thread detection block 301 can always maintain a fit state with the extrusion ring 203. Through the cooperation of the limit rod 401 and the slider 302, when the internal thread of the thread detection block 301 is damaged, a single thread detection block 301 can be replaced to reduce maintenance costs.

[0028] The implementation principle of the inspection tool for machining mechanical parts in the embodiment of the present application is as follows:

[0029] Before use, the operator needs to adjust the adjustable thread detection assembly 3 according to the external thread diameter of the workpiece to be inspected. By rotating the thread ring 201 in the limit assembly 2 on the outside of the guide cylinder 1, it moves up and down along the cylinder 101. When the thread ring 201 moves to the appropriate position, the reset spring 402 provides elastic support and applies pressure to the slider 302, so that the thread detection block 301 and the extrusion ring 203 always keep in contact, thereby pushing the thread detection block 301 to move radially to adjust the detection inner diameter. During inspection, the operator puts the workpiece into the adjusted inspection tool so that its external thread is aligned with the internal thread of the thread detection block 301. The workpiece is twisted and the extrusion ring 203 is squeezed to ensure the stability of the thread detection block 301 during the inspection process, so as to check the quality of the external thread of the workpiece.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An inspection tool for machining mechanical parts, comprising a guide cylinder (1), a limit assembly (2) and an adjustable thread detection assembly (3); in, The guide cylinder (1) is used for supporting and installing the entire mechanism; The limit assembly (2) comprises a connecting sleeve (202) which is transmission-mounted on the guide cylinder (1), and the connecting sleeve (202) can move axially along the guide cylinder (1), and a squeezing ring (203) is arranged at the lower end of the connecting sleeve (202) for adjusting the detection inner diameter of the adjustable thread detection assembly (3); The adjustable thread detection assembly (3) comprises a plurality of thread detection blocks (301) arranged inside the extrusion ring (203), and the thread detection blocks (301) can move radially along the extrusion ring (203) to adapt to external thread workpieces of different specifications.

2. The inspection tool for machining mechanical parts according to claim 1, characterized in that: The inner side of the thread detection block (301) is provided with threads, the cross section of the thread detection block (301) is a right-angled trapezoid that is wide at the top and narrow at the bottom, and the outer side surface of the thread detection block (301) is an inclined surface, and the extrusion ring (203) is provided with a diameter-reducing inclined groove that is compatible with the thread detection block (301).

3. The inspection tool for machining mechanical parts according to claim 1, characterized in that: The guide cylinder (1) comprises a cylinder body (101) with a thread on its outer surface, a slide groove (102) is provided at the bottom of the cylinder body (101), a slider (302) is slidably provided in the slide groove (102), the slider (302) is fixedly connected to the thread detection block (301), and a reset component (4) is provided on the slider (302) for elastically supporting the adjustable thread detection component (3).

4. The inspection tool for machining mechanical parts according to claim 3, characterized in that: The limit assembly (2) further comprises a threaded ring (201) fixedly arranged on the connecting sleeve (202); the threaded ring (201) is drivingly connected to the cylinder (101) and is used to drive the extrusion ring (203) to move axially along the cylinder (101) to form an extrusion on the thread detection block (301).

5. The inspection tool for machining mechanical parts according to claim 3, characterized in that: The reset assembly (4) comprises a limit rod (401) fixedly arranged on the inner side of the slide groove (102), the end of the limit rod (401) passes through the slider (302) and is slidably connected to the slider (302), and a reset spring (402) is slidably arranged on the limit rod (401).

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