Universal observation device for cutter

By designing a universal observation device for tool, the universal movement of the bearing part and the fixture rod is driven by the universal assembly, so that the observation line of sight of the camera component is always perpendicular to the surface where the tool is observed, solving the problem that the existing technology cannot accurately and continuously observe and detect the plane curved surface that is continuously changing on the cutting edge surface of the tool, and achieving accurate continuous observation and detection of the plane of the continuous changing curved surface.

CN222903973UActive Publication Date: 2025-05-27DONGGUAN JUCHEN PRECISION TOOLS CO LTD

Patent Information

Application Number
CN202421856346.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-01
Publication Date
2025-05-27
Estimated Expiration
2034-08-01

AI Technical Summary

Technical Problem

The existing tool observation and detection devices cannot accurately conduct continuous observation and detection of the plane curved surfaces on the tool blade surface.

Method used

A tool universal observation device is designed, including a fixture rod, a load bearing portion, a universal assembly and a camera component. The universal assembly drives the universal movement of the bearing part and the fixture rod, so that the observation line of sight of the camera component is always perpendicular to the surface observed by the tool, realizing continuous observation and detection of the continuously changing curved surface plane.

Benefits of technology

Continuous observation and detection of the continuous change curved surface plane of the tool surface is realized, and the accuracy and comprehensiveness of the detection are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a universal observation device for a cutter, which belongs to the field of cutter detection and comprises a cutter arranged on a clamp rod. A groove is formed in the upper surface of the bearing part; the universal assembly is provided with a bearing part and drives the bearing part to move universally; the camera component is arranged above the bearing part; the clamp rod is placed in the groove, and the cutter is placed under the camera component. The universal assembly drives the bearing part to move in the horizontal direction or rotate on the horizontal plane or rotate on the vertical plane or drives the clamp rod to axially rotate, and the observation sight line, aligned with the cutter, of the camera component is perpendicular to the observed surface of the cutter. After the universal assembly drives the bearing part and the cutter on the bearing part to translate and lift approximately, the universal assembly enables the clamp rod to drive the cutter at the end of the clamp rod to rotate axially, so that the observation sight line of the camera part aligned with the cutter is always perpendicular to the observed surface of the cutter, and continuous observation and detection of a continuously changing curved plane on the surface of the cutter are realized.
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Description

Technical Field

[0001] The utility model relates to the technical field of tool detection, in particular to a tool universal observation device. Background Art

[0002] In the field of machining, the tool is usually inspected for appearance before or after use, such as the wear or size of the tool. The tool is usually clamped to the end of a rod-shaped fixture, and the tool is rotated by rotating the rod angle, so that the tool can be observed and inspected from multiple angles.

[0003] China CN215881345U discloses an adjustable tool wear detection fixture, including a base, a positioning device and a clamping device. The clamping unit is used to adjust the tool wear at multiple angles to measure the morphology and numerical value of tool wear of different models.

[0004] However, there is a common problem with the above-mentioned methods. The purpose of observing and inspecting the tool is mainly to observe and inspect whether there are defects or other problems on the blade of the tool. The surface of the blade of the tool can actually be regarded as a combination of a series of complex curved surfaces and planes. The current tool observation and inspection device can only adjust the tool to a certain angle and then accurately observe and inspect the surface of the tool blade at that angle, but cannot accurately and continuously observe and inspect the continuously changing flat curved surfaces on the surface of the tool blade. Utility Model Content

[0005] In view of this, the utility model proposes a universal tool observation device to solve the problem that the current tool observation and detection device cannot accurately and continuously observe and detect the continuously changing planar curved surface on the tool blade surface.

[0006] The technical solution of the utility model is implemented as follows: the utility model provides a tool gimbal observation device, including a clamp rod, one end of which is provided with a tool; a bearing portion, the upper surface of which is provided with a groove; a gimbal assembly, on which the bearing portion is provided and drives the bearing portion to move in a gimbal manner; a camera component, which is arranged above the bearing portion; wherein the clamp rod is placed in the groove and the tool is placed directly below the camera component; the gimbal assembly drives the bearing portion to move in the horizontal direction or rotate in the horizontal plane or rotate in the vertical plane or drives the clamp rod axis to rotate, and makes the camera component align with the tool so that the observation line of sight is perpendicular to the surface of the tool being observed.

[0007] On the basis of the above technical scheme, preferably, the universal joint assembly includes a base, which moves in the horizontal direction; a universal joint, which is arranged on the base and connected to the bearing part; a roller, which is arranged on the bearing part and is located directly above the groove; wherein the bearing part rotates in a horizontal plane or in a vertical plane relative to the base through the universal joint; the wheel surface of the roller is tightly attached to the rod wall of the clamp rod, the roller presses the clamp rod into the groove, and the roller rotates axially and drives the clamp rod to rotate axially in the groove.

[0008] More preferably, the bearing part includes a base plate, which is arranged on the universal joint; a fixed part, which is arranged on the base plate; a movable part, which is arranged on the base plate and spaced apart from the fixed part; wherein grooves are provided on the upper surfaces of the fixed part and the movable part, and the movable part moves relative to the fixed part along the extension direction of the two ends of the groove and adjusts the spacing between the two grooves so that the two ends of the clamp rod are respectively placed in the two grooves; the universal assembly also includes a slider, which is arranged on the base plate; and an ejector pin, which is arranged on the slider; wherein the movable part is arranged on the slider and drives the movable part to move synchronously; the ejector pin is arranged on a side of the movable part away from the fixed part, and the tip of the ejector pin is abutted against the end surface of the groove of the clamp rod on the movable part.

[0009] Further preferably, the universal joint assembly also includes a supporting portion, which is arranged on the base plate and located between the fixed portion and the movable portion; wherein a roller is arranged on the supporting portion, and the cross-sectional shape of the supporting portion along the base plate surface is a trapezoid or a triangle, and the longer bottom side of the cross-sectional shape of the supporting portion faces the movable portion, so that the rotation axis of the roller intersects the extension direction of the groove at an acute angle, so that when the roller rotates counterclockwise, it drives the clamp rod to move along the groove toward the ejector pin.

[0010] More preferably, the support portion moves in a vertical direction of the bottom plate surface and adjusts the distance between the roller and the groove.

[0011] More preferably, the ejector pin moves relative to the slider along the extending direction of the groove, and the distance between the end of the ejector pin abutting against the clamp rod and the movable part is adjusted.

[0012] More preferably, the ejector pin moves relative to the slider in a direction perpendicular to the bottom plate surface, and the tip of the ejector pin is aligned with the center of the radial section of the clamp rod.

[0013] More preferably, the radial cross-section of the groove is V-shaped.

[0014] More preferably, the universal joint assembly also includes a rolling pin, which is arranged on the inner wall of the groove; wherein the axial direction of the rolling pin is perpendicular to the extension direction of the groove, the rolling pin rotates relative to the axial direction of the groove, the outer wall of the rolling pin contacts the outer wall of the clamp rod, and the rolling pin rotates simultaneously with the axial rotation of the clamp rod.

[0015] The tool universal observation device of the utility model has the following beneficial effects compared with the prior art:

[0016] (1) The utility model drives the bearing part and the tool thereon to translate and rise and fall to a certain extent through the universal joint assembly, and then drives the tool shaft at its end to rotate through the universal joint assembly, so that the observation line of sight of the camera component aimed at the tool is always perpendicular to the observed surface of the tool, thereby realizing continuous observation and detection of the continuously changing curved surface plane of the tool surface.

[0017] (2) The utility model presses the clamp rod into the groove by means of a roller, and adjusts the viewing angle of the tool surface by rotating the roller to drive the clamp rod and the tool shaft at its end, and makes the axial direction of the roller form an angle with the axial direction of the clamp rod, thereby ensuring that when the rolling roller drives the clamp rod to rotate, the clamp rod is subjected to a force moving toward the ejector pin and is ejected by the ejector pin, thereby avoiding the problem that the rolling roller will cause the clamp rod to translate along its axial direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A three-dimensional diagram of the tool universal observation device of the utility model;

[0020] Figure 2 A three-dimensional diagram of the tool universal observation device of the utility model from another perspective;

[0021] Figure 3 It is a three-dimensional diagram of the universal joint assembly of the utility model;

[0022] Figure 4 It is a top view of the universal joint assembly of the utility model;

[0023] Figure 5 It is a side sectional view of the universal joint assembly of the utility model.

[0024] In the figure: 1. clamp rod; 2. bearing part; 21. bottom plate; 22. fixing part; 23. movable part; 201. groove; 3. universal assembly; 31. base; 32. universal joint; 33. roller; 34. slider; 35. ejector pin; 36. supporting part; 37. rolling pin; 4. camera parts. DETAILED DESCRIPTION

[0025] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1 As shown, combined Figure 2 and Figure 3 The utility model discloses a tool universal observation device, which comprises a clamp rod 1, a bearing part 2, a universal assembly 3 and a camera component 4.

[0027] The clamp rod 1 is a rod-shaped clamp, and the tool is fixed on one end of the clamp rod 1 so that the observed surface of the tool can be adjusted by axially rotating the clamp rod 1.

[0028] A groove 201 is formed on the upper surface of the bearing portion 2. The fixture rod 1 is placed in the groove 201, and the tool is always located outside the groove 201.

[0029] The universal assembly 3 is provided with the bearing part 2 and drives the bearing part 2 to move in a universal direction. The universal assembly 3 drives the bearing part 2 to move in a horizontal direction or rotate in a horizontal plane or in a vertical plane or drives the clamp rod 1 to rotate.

[0030] The camera component 4 is arranged above the supporting part 2. The camera component 4 here can be not only a shooting camera, but also a magnifying glass, a microscope, a detection sensor, a laser scanner and other components; the clamp rod 1 is placed in the groove 201 and the tool is placed directly below the camera component 4; the position of the end of the clamp rod 1 relative to the camera component 4 is adjusted by the universal joint assembly 3. When the universal joint assembly 3 continuously drives the clamp rod 1 to move and rotate to change the angle of the tool, one of the curved surfaces or planes constituting the tool surface is always kept parallel to the horizontal plane. Therefore, when the camera component 4 is aimed at the tool's observation line of sight and observes vertically downward, its observation line of sight can always be perpendicular to the observed surface of the tool, and the continuously changing curved surface and plane will be continuously observed and detected as the tool position and angle change.

[0031] exist Figure 3 In a preferred embodiment shown, in order to drive the clamp rod 1 to rotate axially, the universal assembly 3 includes a base 31 , a universal joint 32 and a roller 33 .

[0032] The base 31 moves in a horizontal direction. For the convenience of operation and observation, the horizontal direction is usually the horizontal direction of a face. The base 31 is mounted on a platform, a slide rail is arranged on the platform, and the base 31 is movably mounted on the slide rail.

[0033] The universal joint 32 is disposed on the base 31 and connected to the bearing part 2. The bearing part 2 rotates in a horizontal plane or in a vertical plane relative to the base 31 through the universal joint 32, so that the bearing part 2 can tilt up and down and swing left and right with the clamp rod 1.

[0034] The roller 33 is arranged on the bearing part 2 and is located directly above the groove 201; the wheel surface of the roller 33 is in close contact with the rod wall of the clamp rod 1, and the roller 33 presses the clamp rod 1 into the groove 201. The roller 33 rotates axially and drives the clamp rod 1 to rotate axially in the groove 201. On the one hand, the roller 33 presses the clamp rod 1 into the groove 201 to prevent the clamp rod 1 from being separated from the groove. On the other hand, when the roller 33 is rotated, the wheel surface of the roller 33 and the rod wall of the clamp rod 1 drive the clamp rod 1 to rotate axially through contact friction, and drive the tool to rotate axially to adjust the position of the tool surface to align with the camera component 4. Since the roller 33 can be rotated at any time during the observation process, the clamp rod 1 and the tool at its end can be rotated at any time during the observation process, so that the observation line of the camera component 4 aimed at the tool can always be perpendicular to the surface of the tool being observed.

[0035] exist Figure 3 In a preferred embodiment shown, different lengths of clamp rods 1 are required for clamping different tools, so the bearing portion 2 includes a base plate 21 , a fixed portion 22 and a movable portion 23 , and the universal joint assembly 3 also includes a slider 34 and a ejector pin 35 .

[0036] The bottom plate 21 is arranged on the universal joint 32. The bottom plate 21 is provided with a slide rail.

[0037] The fixing portion 22 is disposed on the bottom plate 21 .

[0038] The movable portion 23 is disposed on the bottom plate 21 and is spaced apart from the fixed portion 22. Grooves 201 are provided on the upper surfaces of the fixed portion 22 and the movable portion 23, and the movable portion 23 moves relative to the fixed portion 22 along the extending direction of the two ends of the groove 201; by adjusting the spacing between the two grooves 201, the two ends of the clamp rod 1 are placed in the two grooves 201 respectively, so as to adapt to loading clamp rods 1 of different sizes, thereby avoiding the problem that the clamp rod 1 falls out of the groove 201 due to the heavy end of the clamp rod 1 where the tool is set.

[0039] The slider 34 is disposed on the slide rail of the bottom plate 21 , and the movable portion 23 is disposed on the slider 34 and drives the movable portion 23 to move synchronously.

[0040] The ejector pin 35 is disposed on the slider 34 ; the ejector pin 35 is disposed on a side of the movable portion 23 away from the fixed portion 22 , and the tip of the ejector pin 35 abuts against the end surface of the groove 201 of the clamp rod 1 on the movable portion 23 to prevent the clamp rod 1 from slipping out of one end of the groove 201 and falling off.

[0041] exist Figure 4 In a preferred embodiment shown, when the clamp rod 1 is driven to rotate by rotating the roller 33 , the direct contact and friction between the two causes the clamp rod 1 to move axially along the groove 201 , so the universal assembly 3 also includes a support portion 36 .

[0042] Among them, the support part 36 is arranged on the bottom plate 21 and is located between the fixed part 22 and the movable part 23; the roller 33 is arranged on the support part 36, and the cross-sectional shape of the support part 36 along the plate surface of the bottom plate 21 is a trapezoid or a triangle, and the longer bottom side of the cross-sectional shape of the support part 36 faces the movable part 23, so that the rotation axis of the roller 33 intersects the extension direction of the groove 201 at an acute angle, so that when the roller 33 rotates counterclockwise, it drives the clamp rod 1 to move along the groove 201 toward the ejector pin 35; when the rolling roller 33 drives the clamp rod 1 to rotate, the clamp rod 1 will be subjected to the force moving toward the ejector pin and be ejected by the ejector pin, thereby avoiding the problem that the rolling roller 33 will cause the clamp rod 1 to translate along its axial direction, and limits the relative position of the clamp rod 1 and the camera component 4, preventing the tool from leaving the observation range of the camera component 4.

[0043] exist Figure 3 In a preferred embodiment shown, different tools require clamp rods 1 of different rod diameters for clamping, the support portion 36 moves in the vertical direction of the base plate 21, and adjusts the distance between the roller 33 and the groove 201 to adapt to the placement requirements of clamp rods 1 of different rod diameters.

[0044] exist Figure 5 In a preferred embodiment shown, the ejector pin 35 moves relative to the slider 34 along the extension direction of the groove 201, and the distance between the end of the ejector pin 35 abutting the clamp rod 1 and the movable portion 23 is adjusted to adapt to the placement requirements of clamp rods 1 of different lengths.

[0045] exist Figure 5 In a preferred embodiment shown, the ejector pin 35 moves relative to the slider 34 in a direction perpendicular to the surface of the base plate 21, and the tip of the ejector pin 35 is aligned with the center of the radial section of the clamp rod 1, so as to avoid the problem of the position of the ejector pin 35 against the end surface of the clamp rod 1 being misaligned, thereby causing the clamp rod 1 to shift in position.

[0046] exist Figure 3 In a preferred embodiment shown, the radial cross-section of the groove 201 is V-shaped, and the V-shaped groove supports the clamp rod 1 from both sides below the clamp rod 1, which not only provides a more stable support, but is also suitable for clamp rods 1 with different cross-sectional shapes.

[0047] exist Figure 3 In a preferred embodiment shown, in order to enable the clamp rod 1 to rotate in the groove 201 , the universal joint assembly 3 further includes a rolling pin 37 .

[0048] Among them, the rolling pin 37 is arranged on the inner wall of the groove 201; the axial direction of the rolling pin 37 is perpendicular to the extension direction of the groove 201, the rolling pin 37 rotates axially relative to the groove 201, the outer wall of the rolling pin 37 contacts the outer wall of the clamp rod 1, and the rolling pin 37 rotates simultaneously with the axial rotation of the clamp rod 1, so that the clamp rod 1 can rotate effectively.

[0049] like Figure 1 Said, combined Figure 2 and Figure 3 The utility model provides a method for using a tool universal observation device, which adopts the tool universal observation device of any of the above embodiments, and includes the following steps.

[0050] Step 1: a cutter is arranged on one end of the clamp rod 1 , the clamp rod 1 is placed in the groove 201 of the bearing portion 2 , and the end of the clamp rod 1 facing the movable portion 23 is abutted against the ejector pin 35 .

[0051] Step 2, move the base 31 horizontally and rotate the bearing part 2 on the universal joint 32, so that the surface of the tool to be observed is moved to just below the camera component 4, and move the support part 36 in the vertical direction of the bottom plate 21 so that the wheel surface of the roller 33 is tightly attached to the rod wall of the clamp rod 1.

[0052] Step three, rotate the roller 33 counterclockwise and drive the clamp rod 1 to rotate axially, so that the observation line of the camera component 4 aimed at the tool is perpendicular to the observed surface of the tool.

[0053] Take the drill bit of a spiral drill as an example. The handle of the drill bit is the clamp rod 1. The drill bit is clamped into the driving mechanism of the spiral drill through the clamp rod 1. The outer peripheral wall of the tip of the drill bit is spirally surrounded by peripheral teeth, and the tip is the end tooth. Each tooth has a front blade surface and a back blade surface. The part where the front and rear blade surfaces meet is the cutting edge. Since the teeth of the drill bit are spirally arranged, each tooth has a front and rear blade surface and the cutting edge. As the front and rear blade surfaces meet, the direction of the surface gradually changes. In order to enable the observation line of the camera component 4 to always be aimed downward at the observed surface of the tool, the present application not only needs to be able to adjust the inclination angle of the tool extension direction relative to the horizontal plane, but also needs to be able to continuously rotate the tool during the observation process.

[0054] For example, when the present application needs to observe the peripheral teeth of a spiral drill bit tool, the universal joint assembly 3 can be used to set the clamp rod 1 horizontally, and the tool can be driven to rotate by manually rotating the roller 33 during observation, so that the front and rear blade surfaces and cutting edges of the peripheral teeth can be observed.

[0055] For another example, when the end teeth of the tool need to be observed, the clamp rod 1 can be tilted by the universal assembly 3 and the end of the clamp rod 1 setting the tool is directed upward to the camera component 4, at which time the front cutting surface and the cutting edge of the end teeth can be completely exposed to the observation line of sight of the camera component 4. When observing the back cutting surface of the end teeth, the clamp rod 1 needs to be set vertically.

[0056] For example, when it is necessary to observe spiral drill bit tools of different types and sizes, since the total length of the spiral drill bit tool is generally between 30 cm and 200 cm, the length of its shank (clamp rod 1) is at least one-half of the total length of the tool. Therefore, when fixing the clamp rod 1 of the tool to the observation setting of the present application, it is necessary to first adjust the distance between the fixed part 22 and the movable part 23, so that the two ends of the clamp rod 1 are respectively placed in the grooves 201 on the fixed part 22 and the movable part 23, and then press the clamp rod 1 by the roller 33; the circumferential tooth length of the tool is relatively long, and the observation position of the circumferential teeth of the tool can be changed by horizontally sliding the camera component 4.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool universal observation device, characterized in that: include: A fixture rod (1), one end of which is provided with a cutting tool; A bearing portion (2), the upper surface of which is provided with a groove (201); A universal assembly (3), on which the bearing portion (2) is arranged and drives the bearing portion (2) to move in a universal direction; A camera component (4) is arranged above the carrying portion (2); The clamp rod (1) is placed in the groove (201) and the tool is placed directly below the camera component (4); The universal joint assembly (3) drives the bearing part (2) to move in the horizontal direction or to rotate in the horizontal plane or in the vertical plane or to drive the clamp rod (1) to rotate, and makes the observation line of sight of the camera component (4) aligned with the tool perpendicular to the surface of the tool being observed.

2. A tool universal observation device according to claim 1, characterized in that: The universal assembly (3) comprises: A base (31) moves in a horizontal direction; A universal joint (32) disposed on the base (31) and connected to the bearing portion (2); A roller (33) is arranged on the bearing portion (2) and is located directly above the groove (201); The bearing portion (2) is rotated in a horizontal plane or in a vertical plane relative to the base (31) via a universal joint (32); The wheel surface of the roller (33) is tightly attached to the rod wall of the clamp rod (1), and the roller (33) presses the clamp rod (1) into the groove (201). The roller (33) rotates axially and drives the clamp rod (1) to rotate axially in the groove (201).

3. A tool universal observation device according to claim 2, characterized in that: The bearing portion (2) comprises: A base plate (21) arranged on the universal joint (32); A fixing portion (22) disposed on the bottom plate (21); A movable portion (23) is arranged on the bottom plate (21) and is spaced apart from the fixed portion (22); The upper surfaces of the fixed portion (22) and the movable portion (23) are both provided with grooves (201); the movable portion (23) moves relative to the fixed portion (22) along the extending direction of the two ends of the groove (201) and adjusts the distance between the two grooves (201), so that the two ends of the clamp rod (1) are respectively placed in the two grooves (201); The universal assembly (3) further comprises: A slider (34) is arranged on the bottom plate (21); An ejector pin (35) is arranged on the slider (34); Wherein, the movable part (23) is arranged on the slider (34) and drives the movable part (23) to move synchronously; The ejector pin (35) is arranged on a side of the movable portion (23) away from the fixed portion (22), and the tip of the ejector pin (35) is abutted against an end surface of a groove (201) of the clamp rod (1) located on the movable portion (23).

4. A tool universal observation device according to claim 3, characterized in that: The universal assembly (3) further comprises: A support portion (36) disposed on the bottom plate (21) and located between the fixed portion (22) and the movable portion (23); A roller (33) is arranged on the support portion (36), and the cross-sectional shape of the support portion (36) along the plate surface of the bottom plate (21) is a trapezoid or a triangle, and the longer bottom side of the cross-sectional shape of the support portion (36) faces the movable portion (23), so that the rotation axis of the roller (33) intersects with the extension direction of the groove (201) at an acute angle, so that when the roller (33) rotates counterclockwise, it drives the clamp rod (1) to move along the groove (201) toward the ejector pin (35).

5. The tool universal observation device according to claim 4, characterized in that: The support portion (36) moves in a vertical direction along the surface of the bottom plate (21) and adjusts the distance between the roller (33) and the groove (201).

6. The tool universal observation device according to claim 3, characterized in that: The ejector pin (35) moves relative to the slider (34) along the extension direction of the groove (201), and adjusts the distance between the end of the ejector pin (35) abutting against the clamp rod (1) and the movable part (23).

7. The tool universal observation device according to claim 3, characterized in that: The ejector pin (35) moves relative to the slider (34) in a direction perpendicular to the surface of the bottom plate (21), and the tip of the ejector pin (35) is aligned with the center of the radial section of the clamp rod (1).

8. The tool universal observation device according to claim 3, characterized in that: The radial cross-section of the groove (201) is V-shaped.

9. The tool universal observation device according to claim 8, characterized in that: The universal assembly (3) further comprises: A rolling pin (37) is arranged on the inner wall of the groove (201); The axial direction of the rolling pin (37) is perpendicular to the extension direction of the groove (201); the rolling pin (37) rotates axially relative to the groove (201); the outer wall of the rolling pin (37) contacts the outer wall of the clamp rod (1); and the rolling pin (37) rotates simultaneously with the axis of the clamp rod (1).

Citation Information

Patent Citations

  • Adjustable tool wear detection clamp

    CN215881345U

Cited By

  • Universal observation device for cutter and use method of universal observation device

    CN118752457A