Clamp for cutter detection

Abstract

The utility model discloses a fixture for cutter detection, which comprises a bracket, a rotating arm and a positioning assembly, and is characterized in that the bracket is vertically arranged; the rotating arm is movably connected with the support and comprises a rotating part and a supporting part which is perpendicular to the rotating part and connected with the rotating part, and the rotating part is rotatably connected with the support through a horizontal shaft; the positioning assembly is arranged on the supporting portion of the rotating arm and comprises a positioning block, a positioning wheel and an elastic piece, a clamping position perpendicular to the supporting portion is formed between the positioning block and the corresponding peripheral face of the positioning wheel, and the elastic piece is arranged between the supporting portion and the positioning block. The tool is elastically clamped on the rotating arm through the positioning assembly, the positioning wheel is rotated to enable the tool to rotate around the central axis of the positioning wheel, and the rotating arm is rotated to drive the positioning assembly to rotate, so that the circumferential edge and the end edge of the tool are detected in all directions; the elastic piece is arranged between the rotating arm and the positioning block, so that the material changing process of the cutter is quick and convenient, the structure is simple, and the detection efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp for tool detection. Background Art

[0002] During the manufacturing or use of PCB processing tools, there may be defects such as edge collapse and wear. Using bad tools will lead to poor surface quality of processed products and inaccurate hole positions. Therefore, it is necessary to strictly control the quality of PCB processing tools and do accurate defect detection. Therefore, after the drill bit is manufactured, it is fixed with a fixture and observed and measured with a detection microscope to ensure that it meets the quality requirements.

[0003] How to quickly and intuitively confirm the quality of the tool? Most existing fixtures use tool positioning grooves with multiple directions. Different positioning grooves are used to detect different positions to achieve all-round detection of the tool. During the detection process, the tool needs to be constantly changed, which makes the inspection work cumbersome and reduces the efficiency of observation and measurement. Summary of the invention

[0004] In order to overcome the above-mentioned defects, the utility model provides a tool detection fixture, which can quickly clamp the tool and can perform all-round detection on the axial, radial and end faces of the tool blade, and has a simple structure.

[0005] The utility model adopts a technical solution to solve the technical problem: to provide a tool detection fixture, comprising:

[0006] A bracket, wherein the bracket is arranged vertically;

[0007] A rotating arm, which is movably connected to the bracket, comprises a vertically arranged rotating part, and a supporting part which is perpendicular to the rotating part and connected to the rotating part, wherein the rotating part is rotatably connected to the bracket via a horizontal axis;

[0008] A positioning assembly is arranged on the support portion of the rotating arm, and includes a positioning block, a positioning wheel and an elastic member. A clamping position vertically arranged on the support portion is formed between the positioning block and the outer peripheral surface corresponding to the positioning wheel. The elastic member is arranged between the support portion and the positioning block to provide an elastic force that enables the positioning block to vertically clamp the tool at the clamping position.

[0009] As a further improvement of the utility model, one end of the positioning block away from the clamping position is rotatably connected to the support part through a vertical axis, and a groove for positioning and accommodating the tool is longitudinally opened on one side of the positioning block facing the positioning wheel to form the clamping position.

[0010] As a further improvement of the utility model, the positioning block is arranged close to one side of the width direction of the support part, and includes a connecting part and a clamping part. The connecting part is parallel to the support part and extends outward along the length direction of the support part. The clamping part is arranged at the outer end of the connecting part. The groove body is opened on the clamping part, and the vertical axis is rotatably connected to the inner end of the connecting part.

[0011] As a further improvement of the utility model, a positioning column is further provided on the support portion, the positioning column is arranged on the other side of the width direction of the support portion and is arranged parallel to the vertical axis, and a through hole is opened in the middle of the connecting portion.

[0012] The elastic member is a tension spring, and two ends of the tension spring are respectively positioned on the through hole and the positioning column.

[0013] As a further improvement of the utility model, a limiting sleeve is sleeved on the vertical shaft, and the lower end surface of the inner end of the connecting part is supported on the upper end surface of the limiting sleeve.

[0014] As a further improvement of the present invention, the outer end of the support portion is detachably connected to a mounting plate, and the positioning wheel is made of rubber material and is rotatably arranged close to the pressing portion through the mounting plate.

[0015] As a further improvement of the utility model, the horizontal axis adopts a fastening bolt, and a compression spring is sleeved on the screw rod of the fastening bolt. The two ends of the compression spring elastically abut against the outer end surface of the rotating part of the rotating arm and the inner end surface of the screw head of the fastening bolt respectively.

[0016] As a further improvement of the present invention, the clamp further comprises a positioning frame, a light-transmitting area is provided in the middle of the positioning frame, and the bracket is arranged on one side of the positioning frame by fastening bolts.

[0017] The beneficial effects of the utility model are as follows: the tool is elastically clamped on the rotating arm by the positioning assembly, and the tool can be rotated around its central axis by rotating the positioning wheel, and at the same time, the positioning assembly is driven to rotate in combination with the rotating rotating arm to perform all-round detection of the peripheral edge and end edge of the tool; by arranging an elastic part between the rotating arm and the positioning block, the tool changing process is quick and convenient, the structure is simple, and the detection efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the utility model from a top view;

[0020] Figure 3 This is a schematic diagram of the exploded structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the utility model in a state where the tool is clamped and the rotating arm rotates 90°.

[0022] Combined with the attached drawings, the following description is given:

[0023] 1. Bracket; 2. Rotating arm; 21. Rotating part; 22. Support part; 23. Horizontal axis; 231. Compression spring; 3. Positioning assembly; 31. Positioning block; 311. Groove; 312. Connecting part; 3121. Through hole; 313. Pressing part; 32. Positioning wheel; 33. Elastic member 34. Clamping position 35. Vertical axis 351. Limiting sleeve 36. Mounting plate 37. Positioning column 4. Positioning frame 41. Light-transmitting area. DETAILED DESCRIPTION

[0024] A preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.

[0025] See also Figures 1 to 4 The utility model provides a tool inspection fixture, which is used to clamp the tool so as to perform relevant inspections on the tool blade under a microscopic microscope. The fixture includes a vertically arranged bracket 1, a rotating arm 2 movably connected to the bracket 1 through a horizontal axis 23, and a positioning assembly 3 arranged on the rotating arm 2; the handle of the tool is clamped on the positioning assembly 3, and the rotating arm 2 can rotate on the vertical plane around the horizontal axis 23 under the action of external force, thereby driving the tool clamped on the positioning assembly 3 to rotate, see the attached Figure 4 The fixture holds the tool and rotates the tool clockwise 90°, which can meet the requirements of the tool's peripheral edge detection. Of course, it is not limited to this rotation angle. The operator can rotate the rotating arm clockwise or counterclockwise to any angle to detect the peripheral edge according to the requirements of the detection position; Figure 2 In addition, the bracket 1 is arranged on one side of the positioning frame 4 by fastening bolts, and a light-transmitting area 41 is provided in the middle of the positioning frame 4, so that a light source is arranged at the bottom of the fixture to provide a brighter inspection environment.

[0026] Specifically, the rotating arm 2 has an "L"-shaped structure, including a vertically arranged rotating part 21 and a horizontally arranged supporting part 22 connected to the rotating part 21. The rotating part 21 is rotatably connected to the bracket 1 through a horizontal axis 23; the horizontal axis 23 is a fastening bolt, and a compression spring 231 is sleeved on the screw rod of the fastening bolt. The two ends of the compression spring 231 elastically abut against the outer end surface of the rotating part 21 and the inner end surface of the screw head of the fastening bolt, respectively, so that there is a certain elastic pressure between the rotating arm 2 and the bracket 1. Therefore, when the rotating arm 2 rotates under the action of external force, the elastic pressure enables the rotating arm 2 to stop when it rotates to any angle to detect the tool.

[0027] The positioning assembly 3 includes a positioning block 31, a positioning wheel 32 and an elastic member 33. A clamping position 34 is formed between the outer peripheral surfaces corresponding to the positioning block 31 and the positioning wheel 32, and the clamping position 34 is vertically provided on the support portion 22. The clamping position 34 extends longitudinally. The elastic member 33 is provided between the support portion 22 and the positioning block 31 to provide an elastic force that enables the positioning block 31 to vertically clamp the tool in the clamping position 34, that is, under the action of the elastic force, the tool is positioned in the clamping position 34 along its axial direction, and because the outer peripheral surface of the positioning wheel 32 and the outer peripheral surface of the tool shank have friction, when the positioning wheel 32 is rotated, the tool can be driven to rotate around its central axis in the clamping position 34 under the action of the friction force, thereby facilitating the detection of the peripheral edge of the tool.

[0028] Furthermore, one end of the positioning block 31 away from the clamping position 34 is rotatably connected to the support portion 22 through a vertical shaft 35, so that the positioning block 31 can rotate around the vertical shaft 35 on a horizontal plane under the action of an external force, or when the external force disappears, it approaches the positioning wheel 32 under the action of the elastic force of the elastic member 33 to form a clamping position 34 and elastically clamp the tool. Specifically, the elastic member 33 is a tension spring, one end of which is fixed on the rotating arm 2, and the other end is fixed on the positioning block 31. The tension generated by the tension spring is roughly perpendicular to the positioning block 31, so that the positioning block 31 can elastically clamp the tool in the clamping position 34, which is conducive to the rapid disassembly and assembly of the tool. At the same time, the tool can be rotated under the rotation of the positioning wheel to ensure all-round detection of the tool blade.

[0029] Furthermore, the positioning block 31 is arranged near one side of the support portion 22 in the width direction, and includes a connecting portion 312 and a clamping portion 313. The connecting portion 312 is parallel to the support portion 22 and extends outward along the length direction of the support portion 22. The clamping portion 313 is arranged at the outer end of the connecting portion 312. A groove body 311 is provided on the clamping portion 313. The groove body 311 is in a "V" shape so as to be suitable for clamping tools of different diameters. The inner wall of the V-shaped groove body 311 and the outer peripheral wall of the positioning wheel form a triangular prism clamping position to achieve stable clamping of the tool.

[0030] Furthermore, a positioning column 37 is provided on the support portion 22. The positioning column 37 is arranged on the other side of the width direction of the support portion 22 and is arranged parallel to the vertical axis 35. A through hole 3121 is opened in the middle of the connecting portion 312, and the two ends of the tension spring are respectively positioned on the through hole 3121 and the positioning column 37.

[0031] Furthermore, a limiting sleeve 351 is sleeved on the vertical shaft 35, and the lower end surface of the inner end of the connecting portion 312 is supported on the upper end surface of the limiting sleeve 351. The outer end of the supporting portion 22 is detachably connected with a mounting plate 36, and the positioning wheel 32 is made of rubber material, and is rotatably arranged near the clamping portion 313 through the mounting plate 36. The mounting plate 36 is detachably connected to the rotating arm through a fastening bolt, which is convenient for disassembly and replacement. The limiting sleeve 351 and the mounting plate 36 are arranged in pairs to adjust the height of the positioning block 31 and the positioning wheel 32 (i.e., the height of the clamping position), so as to be suitable for clamping tools of different lengths, thereby improving the scope of application of the clamp. Among them, the positioning wheel 32 made of rubber material has a certain elasticity, and further forms an elastic pressure on the tool positioned at the clamping position 34 to ensure stable clamping of the tool.

[0032] In combination with the above, the tool detection fixture provided by the utility model elastically clamps the tool on the rotating arm through the positioning assembly, and enables the tool to rotate around its central axis by rotating the positioning wheel, and at the same time drives the positioning assembly to rotate in combination with the rotating arm to perform all-round detection of the circumferential edge and end edge of the tool; by arranging an elastic part between the rotating arm and the positioning block, the tool changing process is quick and convenient, the structure is simple, and the detection efficiency is high.

[0033] In the above description, many specific details are described to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited by the specific implementation disclosed above. At the same time, any person familiar with the technical field can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A tool detection fixture, characterized in that: include: A support (1), wherein the support (1) is arranged vertically; a rotating arm (2) movably connected to the bracket (1), comprising a vertically arranged rotating portion (21) and a supporting portion (22) perpendicular to the rotating portion (21) and connected to the rotating portion (21); the rotating portion (21) and the bracket (1) are rotatably connected via a horizontal axis (23); A positioning assembly (3) is arranged on the support portion (22) of the rotating arm (2), and comprises a positioning block (31), a positioning wheel (32) and an elastic member (33); a clamping position (34) arranged perpendicular to the support portion (22) is formed between the outer peripheral surfaces corresponding to the positioning block (31) and the positioning wheel (32); and the elastic member (33) is arranged between the support portion (22) and the positioning block (31) to provide an elastic force that enables the positioning block (31) to vertically clamp the tool at the clamping position (34).

2. The tool detection fixture according to claim 1, characterized in that: One end of the positioning block (31) away from the clamping position (34) is rotatably connected to the support portion (22) via a vertical shaft (35); a groove (311) for positioning and accommodating a tool is longitudinally provided on one side of the positioning block (31) facing the positioning wheel (32) to form the clamping position (34).

3. The tool detection fixture according to claim 2, characterized in that: The positioning block (31) is arranged close to one side of the width direction of the support portion (22), and comprises a connecting portion (312) and a pressing portion (313); the connecting portion (312) is parallel to the support portion (22) and extends outward along the length direction of the support portion (22); the pressing portion (313) is arranged at the outer end of the connecting portion (312); the groove body (311) is opened on the pressing portion (313); and the vertical shaft (35) is rotatably connected to the inner end of the connecting portion (312).

4. The tool detection fixture according to claim 3, characterized in that: The support portion (22) is also provided with a positioning column (37), the positioning column (37) is arranged on the other side of the width direction of the support portion (22) and is arranged parallel to the vertical axis (35), and a through hole (3121) is opened in the middle of the connecting portion (312). The elastic member (33) is a tension spring, and two ends of the tension spring are respectively positioned on the through hole (3121) and the positioning column (37).

5. The tool detection fixture according to claim 3, characterized in that: A limiting sleeve (351) is sleeved on the vertical shaft (35), and the lower end surface of the inner end of the connecting portion (312) is supported on the upper end surface of the limiting sleeve (351).

6. The tool detection fixture according to claim 5, characterized in that: The outer end of the support portion (22) is detachably connected to a mounting plate (36); the positioning wheel (32) is made of rubber material and is rotatably arranged close to the pressing portion (313) via the mounting plate (36).

7. The tool detection fixture according to claim 1, characterized in that: The horizontal axis (23) adopts a fastening bolt, the screw rod of which is sleeved with a compression spring (231), and the two ends of the compression spring (231) elastically abut against the outer end surface of the rotating part (21) of the rotating arm (2) and the inner end surface of the screw head of the fastening bolt respectively.

8. The tool detection fixture according to claim 1, characterized in that: The clamp further comprises a positioning frame (4), a light-transmitting area (41) is provided in the middle of the positioning frame (4), and the bracket (1) is arranged on one side of the positioning frame (4) by means of fastening bolts.

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