A probe protection sleeve for a roundness tester

Abstract

The utility model discloses a kind of probe protective sheaths for roundness tester, it is related to roundness tester technical field, including two symmetrical arrangement protection frame, its inner wall is fixedly installed with shock pad, and symmetrical dismounting is installed in the outer wall surface of fixed head;Annular groove, its outer wall surface after being spliced in two protection frames is opened around;Several limit slots, along the lower wall surface of annular groove evenly distributed opening, and several limit slots are sequentially elongated along the axial direction of protection frame Setting;Two symmetrical arrangement protective cover, its inner wall surface is fixedly installed with sliding block, the lateral section of sliding block is adapted with annular groove, longitudinal section is adapted with limit slot, the lateral section of sliding block is slidably matched with annular groove, longitudinal section is slidably matched with limit slot, the utility model is adjusted by the sliding of protective cover and screw locking, realize the protection range adaptation under different detection scene, give consideration to protection effect and detection convenience.

Description

Technical Field

[0001] This utility model relates to the field of roundness tester technology, specifically a probe protective sleeve for a roundness tester. Background Technology

[0002] Roundness testers are precision shape measurement devices used in the mechanical manufacturing industry. They are primarily used to detect shape errors such as roundness and cylindricity of circular workpieces. They mainly consist of a high-precision spindle, contact / non-contact probes, a worktable, and a data processing system. During operation, they accurately collect contour data by rotating the workpiece or moving the probe. The data is then analyzed by software to generate a measurement report. They feature high measurement accuracy, convenient operation, and intuitive data, and are widely used in the quality inspection of precision parts such as bearings, shafts, and valve cores to ensure product assembly accuracy. For example, the utility model patent with announcement number CN222617891U discloses a roundness meter, including a base plate, a rotating groove in the middle of the top of the base plate, a rotating table rotatably connected to the inner wall of the rotating groove, and a support seat in the middle of the top of the rotating table. A spherical part is placed in the groove, and an air pump on the fixed seat works with an air supply pipe and a connecting pipe to draw air in. The bottom of the spherical part is adsorbed and fixed with a rubber suction cup, so as to facilitate its installation and fixation with the support seat, so that it will shake when the device rotates to measure roundness. However, the roundness tester probe uses a factory-installed protective cover for protection when not in use. The protective cover needs to be removed when in use, which cannot provide the maximum protection during operation. The protection range is limited. Furthermore, the existing roundness tester probe protective cover is made of one piece, and once damaged, the whole thing needs to be replaced, resulting in unnecessary material waste. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a protective sleeve for a roundness meter probe. This solves the technical problems of existing roundness meter probe protective sleeves requiring removal during use, which fails to provide maximum protection during operation, has a limited protection range, and is made in one piece, requiring replacement of the entire unit upon damage, resulting in unnecessary material waste.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A protective sleeve for a roundness meter probe includes a fixing head and a probe, and also includes: Two symmetrically arranged protective frames, each with shock-absorbing pads fixedly installed on its inner wall, and symmetrically disassembled and installed on the outer wall of the fixing head; The annular groove is formed around the outer wall surface after the two protective frames are joined together. Several limiting grooves are evenly distributed along the lower wall of the annular groove, and the several limiting grooves are sequentially extended along the axial direction of the protective frame. Two symmetrically arranged protective covers each have a slider fixedly installed on their inner wall surface. The horizontal section of the slider is adapted to the annular groove, and the vertical section is adapted to the limiting groove. The horizontal section of the slider is slidably engaged with the annular groove, and the vertical section is slidably engaged with the limiting groove.

[0005] Preferably, the outer wall of the fixing head has two symmetrically opened positioning holes, and the shock-absorbing pad and the protective frame are each provided with a connection hole corresponding to the positioning hole. The outer wall of the protective frame is provided with a countersunk groove that is coaxially connected to the connection hole.

[0006] Preferably, a limiting pin is slidably connected inside the positioning hole and the connecting hole, a sliding plate is slidably connected inside the limiting pin along the axial direction, a return spring is fixedly installed between the sliding plate and the bottom wall of the limiting pin, a guide rod is fixedly installed on the side of the sliding plate away from the bottom wall of the limiting pin, and a screw head is fixedly installed on the other end of the guide rod, and the screw head is threadedly connected to the inner side wall of the countersunk groove.

[0007] Preferably, the insertion end of the limiting pin has an assembly chamfer.

[0008] Preferably, each of the protective frames has a plug-in block fixedly installed at one end of its mating surface, and a plug-in groove adapted to the plug-in block is opened at the other end. Two protective frames are spliced ​​together by the plug-in block and the plug-in groove. Countersunk holes for screw connection are evenly opened along the mating surface on the outer wall of the protective frame.

[0009] Preferably, fixing plates are symmetrically fixedly installed on the outer wall surfaces on both sides of the two protective covers. Each fixing plate has screw holes corresponding to the countersunk holes and used for screw connection.

[0010] Preferably, both the front and rear walls of the two protective covers are provided with a number of anti-slip grooves along their height direction.

[0011] Beneficial effects This utility model provides a protective sleeve for a roundness meter probe, which has the following beneficial effects: By adjusting the protective cover with sliding and locking it with screws, the protection range can be adapted to different testing scenarios, balancing the protection effect and the convenience of testing. This solves the problem that the existing roundness meter probe protective cover needs to be removed when using it, which cannot achieve the maximum protection effect during operation and has a limited protection range. By precisely splicing the protective frame, using limit pins to prevent loosening, and using shock-absorbing pads for cushioning, modular protection of the probe's basic structure is achieved. The corresponding parts can be replaced according to the damaged parts of the shell without replacing the entire device, ensuring efficient disassembly and assembly for later maintenance. This solves the problem that the existing roundness meter probe protective sleeves are made of one piece, which requires the entire device to be replaced once damaged, resulting in unnecessary material waste. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the storage structure of this utility model; Figure 2 This is a schematic diagram of the working structure of this utility model; Figure 3 This is a schematic diagram of the protective frame structure of this utility model; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a schematic diagram of the protective cover structure of this utility model.

[0013] In the diagram: 1. Fixed head; 2. Probe; 3. Protective frame; 4. Shock-absorbing pad; 5. Ring groove; 6. Limiting groove; 7. Protective cover; 8. Slider; 9. Positioning hole; 10. Connecting hole; 11. Countersunk groove; 12. Limiting pin; 13. Sliding piece; 14. Return spring; 15. Guide rod; 16. Screw head; 17. Assembly chamfer; 18. Insertion block; 19. Insertion groove; 20. Countersunk hole; 21. Fixing plate; 22. Screw hole; 23. Anti-slip groove. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] Please see Figures 1-5 A protective sleeve for a roundness meter probe includes a fixing head 1 and a probe 2, and also includes: Two symmetrically arranged protective frames 3, each with a shock-absorbing pad 4 fixedly installed on its inner wall, and symmetrically disassembled and installed on the outer wall of the fixing head 1; annular groove 5, which is opened around the outer wall of the two protective frames 3 after splicing. Several limiting grooves 6 are evenly distributed along the lower wall of the annular groove 5, and the several limiting grooves 6 are sequentially extended along the axial direction of the protective frame 3. Two symmetrically arranged protective covers 7 each have a slider 8 fixedly installed on their inner wall. The horizontal section of the slider 8 is adapted to the annular groove 5, and the vertical section is adapted to the limiting groove 6. The horizontal section of the slider 8 is in sliding fit with the annular groove 5, and the vertical section is in sliding fit with the limiting groove 6.

[0016] The outer wall of the fixed head 1 has two symmetrical positioning holes 9. The shock-absorbing pad 4 and the protective frame 3 are each provided with a connection hole 10 corresponding to the positioning hole 9. The outer wall of the protective frame 3 is provided with a countersunk groove 11 that is coaxially connected to the connection hole 10.

[0017] In use, the fixed head 1 provides the mounting base for the overall protective cover, and the probe 2 is the core detection component of the roundness meter; the two protective frames 3 are spliced ​​together to form a basic protective frame, and the shock-absorbing pads 4 on the inner wall can buffer the impact of external collisions and prevent the probe 2 from being damaged by vibration; the annular groove 5 provides a transverse sliding track for the slider 8, and the limiting groove 6 restricts the movement trajectory of the protective cover 7 by cooperating with the longitudinal section of the slider 8. Moreover, the design of the limiting groove 6 extending axially in sequence can adjust the coverage of the protective cover 7 according to the working requirements of the probe 2 to achieve different levels of protection and adapt to various roundness detection scenarios.

[0018] Please see Figure 4 A limiting pin 12 is slidably connected inside the positioning hole 9 and the connecting hole 10. A sliding piece 13 is slidably connected inside the limiting pin 12 along the axial direction. A return spring 14 is fixedly installed between the sliding piece 13 and the bottom wall of the limiting pin 12. A guide rod 15 is fixedly installed on the side of the sliding piece 13 away from the bottom wall of the limiting pin 12. A screw head 16 is fixedly installed on the other end of the guide rod 15. The screw head 16 is threadedly connected to the inner wall of the countersunk groove 11.

[0019] In use, the corresponding setting of positioning hole 9 and connecting hole 10 provides a precise positioning reference for the installation of protective frame 3 and fixing head 1, ensuring that the protective frame 3 is accurately positioned after installation and avoiding displacement that affects the protective effect on probe 2; countersunk groove 11 is coaxially connected with connecting hole 10, which can accommodate the head of fastener, prevent the fastener from protruding from the outer wall of protective frame 3, ensure that the outer wall of protective frame 3 is flat, and avoid interfering with the sliding operation of protective cover 7.

[0020] Please see Figure 4 The insertion end of the limiting pin 12 is provided with an assembly chamfer 17. In use, the assembly chamfer 17 can guide the limiting pin 12 to be quickly and smoothly inserted into the positioning hole 9 and the connecting hole 10, reducing the difficulty of alignment during assembly, avoiding wear caused by hard contact between the insertion end of the limiting pin 12 and the edges of the positioning hole 9 and the connecting hole 10, while improving the assembly efficiency of the protective frame 3 and reducing damage to the components during the assembly process.

[0021] Please see Figure 3 Each protective frame 3 has a plug-in block 18 fixedly installed at one end of its mating surface, and a plug-in groove 19 adapted to the plug-in block 18 is opened at the other end. Two protective frames 3 are spliced ​​together by the plug-in block 18 and the plug-in groove 19. The outer wall surface of the protective frame 3 is evenly provided with countersunk holes 20 for screw connection along the mating surface.

[0022] In use, the limiting pin 12 passes through the positioning hole 9 and the connecting hole 10 to achieve the initial connection between the protective frame 3 and the fixing head 1; the return spring 14 applies a continuous pushing force to the guide rod 15 through the slide plate 13, so that the threaded connection between the screw head 16 and the countersunk groove 11 is kept tight, preventing loosening due to long-term use or vibration; this structure enables the protective frame 3 to be detachably installed, and the limiting pin 12 can be removed by unscrewing the screw head 16, which is convenient for subsequent maintenance and replacement of the protective frame 3 or the shock-absorbing pad 4.

[0023] Please see Figure 5 Two protective covers 7 are symmetrically fixed with fixing plates 21 on their outer walls. Each fixing plate 21 has screw holes 22 that correspond to the countersunk holes 20 and are used for screw connection.

[0024] When in use, after the protective cover 7 is adjusted to a suitable protective position, the protective cover 7 and the protective frame 3 are firmly fixed by passing screws through the screw holes 22 of the fixing plate 21 and the countersunk holes 20 of the protective frame 3.

[0025] Please see Figure 5 Both the front and rear walls of the two protective covers 7 are provided with several anti-slip grooves 23 along their height direction. When in use, the anti-slip grooves 23 can increase the frictional resistance between the hand and the outer wall of the protective cover 7, making it easier for the staff to slide and adjust the position of the protective cover 7 or apply force when disassembling and assembling the fixing screws, avoiding the impact of hand slippage on operating efficiency. It is especially suitable for the narrow operating space in the roundness tester detection scenario, improving the overall convenience of operation.

[0026] Example 1: In this example, the basic protection of the probe is modularized by precisely splicing the protective frame 3, fixing it with the limit pin 12 to prevent loosening, and buffering it with the shock-absorbing pad 4. The corresponding parts can be replaced according to the damaged parts without replacing the whole thing, ensuring efficient disassembly and assembly for later maintenance.

[0027] Specifically, the two protective frames 3 are first joined together by connecting the plug-in block 18 on the mating surface to the plug-in slot 19, so that the shock-absorbing pad 4 on the inner wall is tightly attached to the outer wall of the fixing head 1.

[0028] After aligning the connection hole 10 between the protective frame 3 and the shock-absorbing pad 4 and the positioning hole 9 of the fixing head 1, use screws to initially pass through the countersunk hole 20 of the protective frame 3 to form a complete protective frame.

[0029] With the help of the assembly chamfer 17 of the insertion end of the limit pin 12, the limit pin 12 is inserted into the hole and then fixed by the threaded connection between the screw head 16 and the countersunk groove 11. The return spring 14 in the limit pin 12 pushes the slide 13 and the guide rod 15 to ensure that the screw head 16 is tightly connected and does not loosen.

[0030] Finally, tighten the screws that pass through the countersunk holes 20 in the protective frame 3 at the joint.

[0031] When in use, the shock-absorbing pad 4 can buffer the impact of external collisions and prevent the probe 2 from being damaged by vibration. When maintenance is required, the limit pin 12 can be removed by unscrewing the screw head 16, and the protective frame 3 can be disassembled for replacement. The operation is convenient.

[0032] Example 2: In this example, the protective cover 7 is adjusted by sliding and locked by screws to adapt the protection range to different testing scenarios, thus balancing the protection effect and the convenience of testing.

[0033] Specifically, according to the detection requirements of probe 2, force is applied to the anti-slip grooves 23 on the front and rear walls of the protective cover 7, so that the horizontal section of the slider 8 on the inner wall of the protective cover 7 slides along the annular groove 5 of the protective frame 3, and the vertical section moves along the limiting groove 6.

[0034] Select the corresponding length of the limiting groove 6 to stop. The design of the limiting groove 6 extending sequentially along the axial direction can accurately adjust the coverage of the protective cover 7 on the probe 2. During the test, adjust to the short limiting groove 6 to expose the working end of the probe 2. When idle, move it to the long limiting groove 6 to completely cover the probe 2.

[0035] 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 protective sleeve for a roundness meter probe, comprising a fixing head (1) and a probe (2), characterized in that, Also includes: Two symmetrically arranged protective frames (3) are each fixedly installed with shock-absorbing pads (4) on their inner walls, and are symmetrically disassembled and installed on the outer wall of the fixing head (1); The annular groove (5) is formed around the outer wall surface after the two protective frames (3) are spliced ​​together; Several limiting grooves (6) are evenly distributed along the lower wall of the annular groove (5), and the several limiting grooves (6) are sequentially extended along the axial direction of the protective frame (3). Two symmetrically arranged protective covers (7) are each fixedly installed with sliders (8) on their inner walls. The transverse section of the slider (8) is adapted to the annular groove (5), and the longitudinal section is adapted to the limiting groove (6). The transverse section of the slider (8) is slidably engaged with the annular groove (5), and the longitudinal section is slidably engaged with the limiting groove (6).

2. The protective sleeve for a roundness meter probe according to claim 1, characterized in that, The outer wall of the fixed head (1) has two symmetrical positioning holes (9). The shock-absorbing pad (4) and the protective frame (3) are provided with connection holes (10) that correspond one-to-one with the positioning holes (9). The outer wall of the protective frame (3) is provided with a countersunk groove (11) that is coaxially connected to the connection hole (10).

3. A protective sleeve for a roundness meter probe according to claim 2, characterized in that, A limiting pin (12) is slidably connected inside the positioning hole (9) and the connecting hole (10). A sliding piece (13) is slidably connected inside the limiting pin (12) along the axial direction. A return spring (14) is fixedly installed between the sliding piece (13) and the bottom wall of the limiting pin (12). A guide rod (15) is fixedly installed on the side of the sliding piece (13) away from the bottom wall of the limiting pin (12). A screw head (16) is fixedly installed at the other end of the guide rod (15). The screw head (16) is threadedly connected to the inner wall of the countersunk groove (11).

4. A protective sleeve for a roundness meter probe according to claim 3, characterized in that, The insertion end of the limiting pin (12) is provided with an assembly chamfer (17).

5. A protective sleeve for a roundness meter probe according to claim 1, characterized in that, Each of the protective frames (3) has a plug-in block (18) fixedly installed at one end of its mating surface, and a plug-in groove (19) adapted to the plug-in block (18) is opened at the other end. The two protective frames (3) are spliced ​​together by the plug-in block (18) and the plug-in groove (19). The outer wall surface of the protective frame (3) is evenly provided with countersunk holes (20) for screw connection along the mating surface.

6. A protective sleeve for a roundness meter probe according to claim 5, characterized in that, Two protective covers (7) are symmetrically fixed with fixing plates (21) on their outer walls. Each fixing plate (21) has a screw hole (22) corresponding to the countersunk hole (20) and used for screw connection.

7. A protective sleeve for a roundness meter probe according to claim 6, characterized in that, Both of the protective covers (7) have several anti-slip grooves (23) on their front and rear walls along their height direction.

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