Piston skirt diameter detection device

Abstract

The utility model discloses a piston skirt diameter detection device, which relates to the technical field of detection devices and comprises a workbench assembly, a protective chamber is arranged at the top of the workbench assembly, and a fixing assembly is arranged in the protective chamber. A through cavity is formed in the middle of the protection cavity, a protection plate is slidably connected to the front side of the through cavity, a pushing plate is fixedly connected to one side of the protection plate, an empty groove is formed in the front side of the protection cavity, the pushing plate is slidably connected into the empty groove, and a second magnet plate is fixedly connected to the top of the protection plate; the fixing assembly comprises a first positioning block fixedly connected to the interior of the protection cavity, a second positioning block is slidably connected to the interior of the protection cavity, the first positioning block and the second positioning block are matched with each other, a limiting groove is formed in the protection cavity, and a connecting block component is slidably connected to an inner cavity of the limiting groove. The device can be used for measuring the diameter of the skirt part of the piston, so that the quality of the measurement work of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, specifically a piston skirt diameter detection device. Background Technology

[0002] The piston is the core component of an engine, and the piston skirt, as the lower part of the last piston ring groove, guides the piston's movement up and down in the cylinder and withstands lateral pressure. The piston skirt has a circular cross-section, which affects the degree of wear during movement within the cylinder. Therefore, measuring the diameter of the piston skirt is a crucial step in ensuring the normal operation of the engine, directly impacting its performance and lifespan. Currently, the operator measures the piston skirt by holding the piston and manually measuring it with a lever micrometer. This method requires manual piston fixation, is cumbersome, and prone to inaccuracies. A new type of piston skirt diameter measuring device is needed.

[0003] Based on this, a search on the patent website revealed a piston skirt detection device disclosed in Chinese patent application number 201220098600.2. The device includes a base with multiple stacked adjustment plates mounted on it. A piston is placed on the adjustment plates. The probe of a dial indicator is inserted into the horizontal hole of the bracket and secured by a screw in the threaded hole. The dial indicator head abuts against the diameter end of the piston skirt. The diameter of the piston skirt can be measured conveniently and quickly through the detection of the dial indicator.

[0004] The device in the aforementioned patent has the following shortcomings: Although the dimensions of the workpiece can be accurately measured using a dial indicator when using a traditional piston skirt detection device, the device lacks a fixing effect on the workpiece to be measured. When measuring, the workpiece is easily affected by external forces and will deviate, which will affect the accuracy of the dial indicator in measuring the workpiece and reduce the working efficiency of the device.

[0005] To address the aforementioned problems, a piston skirt diameter detection device is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a piston skirt diameter detection device. Using this device solves the problem that traditional piston skirt detection devices, although they can accurately measure the size of the workpiece using a dial indicator, lack a fixing effect on the workpiece being measured. When measuring, the workpiece is easily affected by external forces and may shift, which in turn affects the accuracy of the dial indicator's measurement of the workpiece and reduces the device's working efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a piston skirt diameter detection device, comprising a worktable assembly, a protective chamber at the top of the worktable assembly, and a fixing assembly inside the protective chamber; a through cavity in the middle of the protective chamber, a protective plate slidably connected to the front side of the through cavity, a push plate fixedly connected to one side of the protective plate, a slot at the front side of the protective chamber, the push plate slidably connected to the inside of the slot, and a second magnet plate fixedly connected to the top of the protective plate; the fixing assembly includes a first positioning block fixedly connected to the inside of the protective chamber, a second positioning block slidably connected to the inside of the protective chamber, the first positioning block and the second positioning block matching each other, a limit groove inside the protective chamber, a connecting block component slidably connected to the inner cavity of the limit groove, the connecting block component fixedly connected to the second positioning block, and a measuring scale line inside the protective chamber, the top surface of the measuring scale line, the bottom surface of the first positioning block, and the bottom surface of the second positioning block being on the same horizontal plane.

[0008] Preferably, a first magnet plate is fixedly connected to the inner wall of the top of the passage in the protective chamber, and the first magnet plate is magnetically connected to the second magnet plate.

[0009] Preferably, a storage box is fixedly connected to one side of the protective chamber, a door is hinged to one side of the storage box, and a recording pen is installed inside the storage box.

[0010] Preferably, the fixing component further includes a support plate fixedly connected inside the workbench assembly, and the support plate is provided in two sets.

[0011] Preferably, a limit rod is fixedly connected between the two sets of support plates, and a first motor is fixedly connected to the inner wall of one side of the support plate.

[0012] Preferably, a first lead screw is rotatably connected between the two sets of support plates, and the first lead screw is connected to the output end of the first motor.

[0013] Preferably, the connecting block component is threaded to the outer periphery of the first lead screw, and the connecting block component is slidably connected to the outer periphery of the limiting rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This device is used to inspect the piston skirt. The measuring scale inside the protective chamber is a length measuring scale with an accuracy of 0.01 mm, equivalent to the scale on a micrometer. It is used to assist the operator in reading the piston skirt diameter. The starting point of the measuring scale, i.e., the "0" mark, is parallel to the inner wall of the first positioning block, and both are on the same horizontal line. When using the device, the user places the bottom surface of the piston skirt between the first and second positioning blocks, ensuring the outer wall of the piston skirt is tightly fitted against the inner wall of the first positioning block. The operator then starts the first motor. The first lead screw rotates, causing the connecting block component to slide along the limiting groove. The connecting block component then moves the second positioning block closer to the piston until the second positioning block contacts the piston. The innermost wall of the second positioning block is tightly pressed against the outer wall of the piston. The piston is firmly clamped and fixed by the first and second positioning blocks. At this point, the vertical distance between the innermost walls of the first and second positioning blocks is the diameter of the piston skirt. This setup allows the device to fix the piston to be measured, preventing workpiece displacement during measurement. The device can measure the diameter of the piston skirt, improving the quality of the measurement work.

[0016] 2. When the operator measures the piston diameter using the measuring scale, the user can open the box door and take out the recording pen from the storage box. The user can use the recording pen to record the data read, making it convenient for the user to record valid data at any time. After using the recording pen, it can be put back into the storage box and the box door can be closed for the user to use next time. After the user finishes measuring the workpiece, the piston needs to be removed from the protective chamber. The first motor is turned on, so that the first motor drives the first lead screw to rotate in the opposite direction. The first lead screw drives the connecting block component and the second positioning block to move away from the workpiece until the second positioning block is completely away from the piston, and then the workpiece can be removed from the protective chamber.

[0017] 3. When the device is not needed for an extended period, the user can seal the protective chamber. The operator grasps the push plate and pulls it upward along the slot. The push plate causes the protective plate to slide upward, moving it closer to the first magnet plate until the second magnet plate at the top of the protective plate is tightly attached to the bottom of the first magnet plate. The second magnet plate and the first magnet plate are magnetically connected, thus fixing the protective plate to the front of the protective chamber. The protective plate can then seal the protective chamber, preventing external dust and impurities from entering, thus protecting the device and improving its practicality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2This is a structural diagram of the workbench assembly, protective chamber, and fixing assembly of this utility model;

[0020] Figure 3 This is a structural diagram of the second positioning block and the drive mechanism of this utility model;

[0021] Figure 4 This is a structural diagram of the storage mechanism of this utility model;

[0022] Figure 5 This is a structural diagram of the protective plate mechanism of this utility model.

[0023] In the diagram: 1. Workbench assembly; 2. Protective chamber; 3. Fixing assembly; 31. First positioning block; 32. Second positioning block; 33. Measuring scale line; 21. Empty slot; 22. Push plate; 23. Protective plate; 24. First magnet plate; 34. Connecting block component; 35. First lead screw; 36. First motor; 37. Support plate; 38. Limiting rod; 211. Storage box; 212. Box door; 213. Recording pen; 25. Second magnet plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0026] Combination Figures 1-5 A piston skirt diameter detection device includes a worktable assembly 1, a protective chamber 2 at the top of the worktable assembly 1, and a fixing assembly 3 inside the protective chamber 2. A through cavity is provided in the middle of the protective chamber 2, a protective plate 23 is slidably connected to the front side of the through cavity, a push plate 22 is fixedly connected to one side of the protective plate 23, a slot 21 is provided at the front side of the protective chamber 2, the push plate 22 is slidably connected to the slot 21, and a second magnet plate 25 is fixedly connected to the top of the protective plate 23. The fixing assembly 3 includes a first positioning block 31 fixedly connected to the inside of the protective chamber 2, a second positioning block 32 slidably connected to the inside of the protective chamber 2, the first positioning block 31 and the second positioning block 32 matching each other, a limit groove is provided inside the protective chamber 2, a connecting block component 34 is slidably connected to the inner cavity of the limit groove, the connecting block component 34 is fixedly connected to the second positioning block 32, and a measuring scale line 33 is provided inside the protective chamber 2, the top surface of the measuring scale line 33, the bottom surface of the first positioning block 31, and the bottom surface of the second positioning block 32 are on the same horizontal plane.

[0027] The present invention will be further described below with reference to the embodiments.

[0028] Example 1:

[0029] This embodiment discloses the following technical solution, specifically as follows: Figures 1-4 As shown.

[0030] The fixing component 3 also includes a support plate 37 fixedly connected inside the workbench component 1. The support plate 37 is provided in two sets, and a limit rod 38 is fixedly connected between the two sets of support plates 37. A first motor 36 is fixedly connected to the inner wall of one side of the support plate 37. A first lead screw 35 is rotatably connected between the two sets of support plates 37. The first lead screw 35 is connected to the output end of the first motor 36. A connecting block component 34 is threadedly connected to the outer periphery of the first lead screw 35, and the connecting block component 34 is slidably connected to the outer periphery of the limit rod 38.

[0031] Example 2:

[0032] This embodiment discloses the following technical solution, specifically as follows: Figures 2-5 As shown: A first magnet plate 24 is fixedly connected to the inner wall of the top of the protective chamber 2. The first magnet plate 24 is magnetically connected to the second magnet plate 25. A storage box 211 is fixedly connected to one side of the protective chamber 2. A box door 212 is hinged to one side of the storage box 211. A recording pen 213 is installed inside the storage box 211.

[0033] In summary: Traditionally, operators measure the piston skirt by holding the piston and manually measuring it with a lever micrometer. This method requires manual piston fixation, is cumbersome, and prone to inaccuracies. This device can be used to inspect the piston skirt. The measuring scale 33 inside the protective chamber 2 is a length measurement scale with an accuracy of 0.01 mm, equivalent to a micrometer scale. It assists the operator in reading the piston skirt diameter. The starting point of the measuring scale 33, i.e., the "0" mark, is parallel to the inner wall of the first positioning block 31, both on the same horizontal line. When using the device, the user places the bottom of the piston skirt between the first positioning block 31 and the second positioning block 32, ensuring the outer wall of the piston skirt is tightly against the inner wall of the first positioning block 31. The operator then activates the first motor 36, which drives the first lead screw 35 to rotate. The connecting block component 34 will slide along the limiting groove, and the connecting block component 34 will drive the second positioning block 32 to move closer to the piston until the second positioning block 32 contacts the piston. The innermost wall surface of the second positioning block 32 is in close contact with the outer wall of the piston. The piston is tightly clamped and fixed by the first positioning block 31 and the second positioning block 32. At this time, the vertical distance between the innermost wall surface of the first positioning block 31 and the innermost wall surface of the second positioning block 32 is the diameter of the piston skirt. The innermost wall surface of the first positioning block 31 is the starting point of the "0" scale line. The operator can use the measuring scale line 33 to read the value corresponding to the innermost wall surface of the second positioning block 32, so as to know the distance between the innermost wall surface of the first positioning block 31 and the innermost wall surface of the second positioning block 32, and thus know the diameter of the piston skirt. This setting can fix the piston to be measured by the device, avoid the workpiece from shifting during measurement, and the device can measure the diameter of the piston skirt, thus improving the quality of the device's measurement work.

[0034] The operator measures the piston diameter using the measuring scale 33. The user can open the box door 212 and take out the recording pen 213 from the storage box 211. The user can use the recording pen 213 to record the data read, making it convenient for the user to record valid data at any time. After using the recording pen 213, it can be placed back in the storage box 211 and the box door 212 can be closed for the user to use again next time. After the user finishes measuring the workpiece, the piston needs to be removed from the protective chamber 2. The first motor 36 is turned on, so that the first motor 36 drives the first lead screw 35 to rotate in the opposite direction. The first lead screw 35 drives the connecting block component 34 and the second positioning block 32 to move away from the workpiece until the second positioning block 32 is completely away from the piston, and then the workpiece can be removed from the protective chamber 2.

[0035] When the device is not needed for an extended period, the user can seal the protective chamber 2. The operator grasps the push plate 22 and pulls it upward along the slot 21. The push plate 22 causes the protective plate 23 to slide upward, moving it closer to the first magnet plate 24 until the second magnet plate 25 at the top of the protective plate 23 is tightly attached to the bottom of the first magnet plate 24. The second magnet plate 25 and the first magnet plate 24 are magnetically connected, thus fixing the protective plate 23 to the front side of the passage of the protective chamber 2. The protective plate 23 can then seal the protective chamber 2, preventing external dust and impurities from entering the protective chamber 2, thus protecting the device and improving its practicality.

[0036] It should be noted that the aforementioned electrical components are equipped with power supplies, and their control methods are existing technologies. To avoid redundancy, they will be described here uniformly. Furthermore, this application is primarily for the protection of mechanical equipment, so the control methods and circuit connections will not be explained in detail herein. In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A piston skirt diameter detection device, comprising a worktable assembly (1), characterized in that: The workbench assembly (1) has a protective chamber (2) on its top, and a fixing assembly (3) is provided inside the protective chamber (2). A through cavity is provided in the middle of the protective chamber (2), and a protective plate (23) is slidably connected to the front side of the through cavity. A push plate (22) is fixedly connected to one side of the protective plate (23). A slot (21) is provided on the front side of the protective chamber (2), and the push plate (22) is slidably connected to the inside of the slot (21). A second magnet plate (25) is fixedly connected to the top of the protective plate (23). The fixing assembly (3) includes components fixedly connected inside the protective chamber (2). The first positioning block (31) is slidably connected to the protective chamber (2), and the first positioning block (31) and the second positioning block (32) are matched with each other. The protective chamber (2) is provided with a limiting groove. The inner cavity of the limiting groove is slidably connected with a connecting block component (34). The connecting block component (34) is fixedly connected to the second positioning block (32). The protective chamber (2) is provided with a measuring scale line (33). The top surface of the measuring scale line (33), the bottom surface of the first positioning block (31) and the bottom surface of the second positioning block (32) are on the same horizontal plane.

2. The piston skirt diameter detection device according to claim 1, characterized in that: The protective chamber (2) has a first magnet plate (24) fixedly connected to the inner wall of the top of the passage, and the first magnet plate (24) is magnetically connected to the second magnet plate (25).

3. The piston skirt diameter detection device according to claim 2, characterized in that: A storage box (211) is fixedly connected to one side of the protective chamber (2), and a door (212) is hinged to one side of the storage box (211). A recording pen (213) is installed inside the storage box (211).

4. The piston skirt diameter detection device according to claim 3, characterized in that: The fixing component (3) further includes a support plate (37) fixedly connected inside the workbench component (1), and the support plate (37) is provided in two sets.

5. The piston skirt diameter detection device according to claim 4, characterized in that: A limit rod (38) is fixedly connected between the two sets of support plates (37), and a first motor (36) is fixedly connected to the inner wall of one side of the support plate (37).

6. The piston skirt diameter detection device according to claim 5, characterized in that: A first lead screw (35) is rotatably connected between the two sets of support plates (37), and the first lead screw (35) is connected to the output end of the first motor (36).

7. The piston skirt diameter detection device according to claim 6, characterized in that: The connecting block component (34) is threaded to the outer periphery of the first lead screw (35), and the connecting block component (34) is slidably connected to the outer periphery of the limiting rod (38).

Images