Drill bit welding strength testing machine

Abstract

The utility model discloses an integrated drill bit welding strength testing machine, comprising a workbench, on which a clamping and flipping mechanism, a testing mechanism and a detection mechanism are arranged. The utility model realizes the clamping and rotation of the drill bit through a clamping and rotating assembly, and cooperates with the testing mechanism to load pressure on the rotating drill bit, thereby ensuring that the circumference of the drill bit is tested, effectively avoiding missed detection and wrong detection; the drill bit is flipped upward by 90° by the flipping assembly, and the end face and side face of the drill bit can be tested simultaneously in cooperation with the detection mechanism, thereby improving the efficiency and accuracy of product detection and reducing the labor intensity of detection personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of welding strength detection, in particular to an integrated machine for testing the welding strength of a drill bit. Background Art

[0002] Most precision micro drills used in printed circuit board (PCB) processing are welded with carbide as the cutting part and stainless steel as the handle. The diameter of the handle is about 3mm. The micro drill made by this welding method is different from the whole carbide micro drill. After welding, the welding strength needs to be tested to ensure that the welding quality meets the use requirements.

[0003] At present, the strength test of precision micro-drills is mostly carried out by bending test method. In the prior art, it is necessary to collect the semi-finished micro-drills welded by different machine tools and then conduct strength test, which brings the following major problems: the semi-finished micro-drills after welding are cylindrical, and the bending test method only performs pressure test on them from one direction. If there are tiny cracks after welding, and the cracks are on the other side of the loading pressure point, in this case, defective products with cracks can easily be missed. Summary of the invention

[0004] In order to overcome the above defects, the utility model provides a drill bit welding strength testing and inspection integrated machine which can effectively avoid missed detection and wrong detection, improve the efficiency and accuracy of product detection, and reduce the labor intensity of detection personnel.

[0005] The utility model adopts a technical solution to solve the technical problem: to provide a drill bit welding strength testing and inspection integrated machine, comprising a workbench, the workbench is provided with a clamping and flipping mechanism, a testing mechanism and a detection mechanism;

[0006] The clamping and flipping mechanism comprises a clamping and rotating assembly for clamping the drill bit shank and rotating the drill bit around its axis, and a flipping assembly for driving the clamping and rotating assembly to drive the drill bit to rotate around one end of its shank so as to flip the drill bit 90°;

[0007] The testing mechanism is arranged beside the clamping and rotating mechanism, and comprises a telescopic rod arranged perpendicular to the axis of the drill bit, a testing rod arranged on one end of the telescopic rod close to the cutting part of the drill bit, and a testing motor driving the telescopic rod to drive the testing rod to apply pressure to or release pressure on the cutting part of the drill bit;

[0008] The detection mechanism includes a detection lens for detecting the welding part of the drill bit.

[0009] As a further improvement of the present invention, the clamping and flipping mechanism also includes a first support member, the first support member is provided with the flipping assembly on the side facing the testing mechanism, the flipping assembly includes a flipping motor arranged on the first support member, and a flipping member drivingly connected to the output shaft of the flipping motor; the clamping and rotating assembly is arranged on the flipping member.

[0010] As a further improvement of the utility model, the clamping and rotating assembly includes a three-jaw clamp arranged on one side of the flip member for clamping the drill bit in the horizontal direction, and a driving member for driving the three-jaw clamp to drive the drill bit to rotate around its axis.

[0011] As a further improvement of the utility model, the clamping rotation assembly includes two support shafts and a pressure wheel assembly arranged on one side of the flip member, and a driving motor arranged on the other side of the flip member and used to drive the two support shafts to rotate in the same direction and at the same speed, the two support shafts are parallel to the axis of the drill bit and are arranged at intervals, and the pressure wheel assembly includes a pressure wheel arranged above the two support shafts, and the outer peripheral surface of the pressure wheel is elastically abutted against the outer peripheral surfaces of the two support shafts at the same time.

[0012] As a further improvement of the utility model, the axial length of the two support shafts is slightly smaller than the axial length of the drill shank.

[0013] As a further improvement of the present invention, the pressure wheel assembly further includes a second support member, a pressure wheel rod and a return spring.

[0014] The second support member is arranged at the bottom of the flip member in the horizontal direction, the pressure wheel rod is arranged parallel to the second support member, and a positioning shaft movably connected to the flip member is provided in the middle of the pressure wheel rod, and the pressure wheel is rotatably connected to one end of the pressure wheel rod close to the support shaft; the return spring is arranged at the other end of the pressure wheel rod, and the two ends of the return spring are elastically abutted against the pressure wheel rod and the second support member respectively.

[0015] As a further improvement of the utility model, the workbench is provided with a guide groove on the side wall facing the first support member, the lower part of the first support member is provided with a guide block adapted to the guide groove, a screw rod is provided in the guide groove, the screw rod is transmission-connected to the first support member through a ball screw provided in the guide block, and a screw motor is provided at one end of the screw rod for driving the screw rod to rotate around its axis.

[0016] As a further improvement of the present invention, the testing mechanism is arranged on the other side of the workbench opposite to the first supporting member through a third supporting member; a trapezoidal groove is provided at the end of the telescopic rod, the testing rod is arranged close to the notch of the trapezoidal groove, and the upper and lower ends of the testing rod are respectively connected to the corresponding groove walls of the trapezoidal groove.

[0017] As a further improvement of the present invention, the pressure applied by the test rod to the cutting portion of the drill bit is 5-6 kgf.

[0018] As a further improvement of the present invention, the detection lens is arranged on a side of the workbench adjacent to the testing mechanism through a fourth support member.

[0019] The beneficial effects of the utility model are as follows: the drill bit is clamped, fixed and rotated by a clamping and rotating assembly, and pressure is applied to the rotating drill bit in cooperation with a testing mechanism, thereby ensuring that the circumference of the drill bit is tested, effectively avoiding missed detection and wrong detection; the drill bit is flipped upward by 90° by a flipping assembly, and the end face and side face of the drill bit can be tested simultaneously in cooperation with a testing mechanism, thereby improving the efficiency and accuracy of product testing and reducing the labor intensity of testing personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 For this utility model Figure 1 A structural diagram from another perspective;

[0022] Figure 3 This is a schematic diagram of the structure of the utility model when the clamping and rotating assembly is in a free state;

[0023] Figure 4 This is a schematic diagram of the principle of the clamping and rotating assembly of the utility model clamping and rotating the drill bit;

[0024] Figure 5 This is a schematic diagram of the test state of the utility model.

[0025] Combined with the attached drawings, the following description is given:

[0026] 1. Workbench; 11. Guide groove; 111. Screw; 112. Screw motor; 2. Clamping and flipping mechanism; 21. Clamping and rotating assembly; 211. Support shaft; 212. Pressure wheel assembly; 2121. Pressure wheel; 2122. Second support member; 2123. Pressure wheel rod; 2124. Positioning shaft; 2125. Reset spring; 213. Drive motor; 22. Flipping assembly; 221. Flipping member; 222. Flipping motor; 23. First support member; 231. Guide block; 3. Testing mechanism; 31. Telescopic rod; 311. Trapezoidal groove; 32. Testing rod; 33. Testing motor; 34. Third support member; 4. Detection mechanism; 41. Detection lens; 42. Fourth support member; 001. Drill bit. DETAILED DESCRIPTION

[0027] A preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.

[0028] See also Figures 1 to 5 The utility model provides a drill bit welding strength testing and inspection integrated machine, which tests the welding strength of the drill bit 001 and detects the state of the drill bit welding part after the test. The integrated machine includes a workbench 1, and a clamping and flipping mechanism 2, a testing mechanism 3 and a detection mechanism 4 arranged on the workbench 1. The detection mechanism 4 has a detection lens 41 for detecting the drill bit welding part. It is a conventional technical means in the art to connect the detection lens 41 with the detection display module to realize the automatic output of the detection result, which will not be described in detail in this embodiment.

[0029] Embodiment 1.

[0030] See also Figure 1 and 2 The clamping and flipping mechanism 2 includes a clamping and rotating assembly 21 for clamping the drill bit shank and rotating the drill bit around its axis, and a flipping assembly 22 for driving the clamping and rotating assembly 21 to drive the drill bit to rotate around one end of its shank so that the drill bit flips upward 90°. The clamping and flipping mechanism 2 also includes a first support member 23, and the first support member 23 is provided with a flipping assembly 22 on the side facing the testing mechanism 3. The flipping assembly 22 includes a flipping motor 222 arranged on the first support member 23, and a flipping member 221 connected to the output shaft of the flipping motor 222; the clamping and rotating assembly 21 is arranged on the flipping member 221. The clamping and rotating assembly 21 includes a three-claw clamp arranged on one side of the flipping member 221 for clamping the drill bit shank, and a driving member for driving the three-claw clamp to drive the drill bit to rotate around its axis.

[0031] The testing mechanism 3 is arranged beside the clamping and rotating mechanism 2, and includes a telescopic rod 31 arranged perpendicular to the axis of the drill bit, a testing rod 32 arranged on one end of the telescopic rod 31 close to the cutting part of the drill bit, and a testing motor 33 that drives the telescopic rod 31 to drive the testing rod 32 to apply pressure to or release pressure on the cutting part of the drill bit.

[0032] Specifically, the three-claw clamp of the clamping rotating assembly 21 clamps and positions the drill bit along its axis, so that the drill bit is kept in a horizontal state and the cutting part of the drill bit faces one side of the detection lens 41, which is convenient for the detection lens 41 to detect the end face of the drill bit. At the same time, the test motor 33 of the testing mechanism 3 drives the telescopic rod 31 to drive the test rod 32 to apply a pressure of 5.5 kgf to the cutting part of the drill bit, and maintains the applied pressure when the driving member drives the three-claw clamp to drive the drill bit to rotate around its axis, thereby ensuring that the drill bit can be pressure tested in each direction. After the drill bit is tested, the flip motor 222 drives the flip member 221 to drive the clamping rotating assembly 21 to rotate 90°, so that the drill bit is flipped from a horizontal state to a vertical state with the cutting part facing upward, so that the detection lens 41 can detect the outer peripheral side of the drill bit welding part. This avoids missed detection and wrong detection caused by only applying pressure to a single surface, while improving the efficiency and accuracy of product detection, and reducing the labor intensity of detection personnel by testing and detecting at the same time.

[0033] Furthermore, the workbench 1 is provided with a guide groove 11 on the side wall facing the first support member 23, and the lower part of the first support member 23 is provided with a guide block 231 adapted to the guide groove 11, and a screw rod 111 is provided in the guide groove 11, and the screw rod 111 is transmission-connected to the first support member 23 through a ball screw provided in the guide block 231, and a screw motor 112 for driving the screw rod 111 to rotate around its axis is provided at one end of the screw rod 111, that is, the lower part of the first support member 23 is movably connected to the side wall of one side in the length direction of the workbench 1.

[0034] The testing mechanism 3 is arranged on the other side of the workbench 1 opposite to the first supporting member 23 through the third supporting member 34; a trapezoidal groove 311 is provided at the end of the telescopic rod 31, and the upper and lower ends of the testing rod 32 are respectively close to the notch of the trapezoidal groove 311 and connected to the groove wall of the trapezoidal groove 311.

[0035] Specifically, the screw motor 112 drives the screw 111 to rotate forward and reverse, thereby causing the first support member 23 to move back and forth along the length direction of the workbench 1, so that the cutting part of the drill bit clamped on the three-jaw clamp moves to the front of the test rod 32, so that the test mechanism 3 can perform pressure testing on the cutting part of the drill bit.

[0036] The detection lens 41 is arranged on a side of the workbench 1 adjacent to the testing mechanism 3 through the fourth support member 42. At the same time, the fourth support member 42 is arranged to be height-adjustable. For example, the fourth support member 42 uses a variable telescopic rod or an electric push rod, so that the detection lens 41 can adapt to changes in the drill bit state.

[0037] Embodiment 2.

[0038] The difference between this embodiment and the first embodiment is that the clamping rotation assembly 21 includes two support shafts 211 and a pressure wheel assembly 212 arranged on one side of the flip member 221, and a driving motor 213 arranged on the other side of the flip member 221 and used to drive the two support shafts 211 to rotate in the same direction and at the same speed. The two support shafts 211 are parallel to the axis of the drill bit and are arranged at intervals. The pressure wheel assembly 212 includes a pressure wheel 2121 arranged above the two support shafts 211, and the outer peripheral surface of the pressure wheel 2121 elastically abuts against the outer peripheral surfaces of the two support shafts 211 at the same time. The axial length of the two support shafts 211 is slightly smaller than the axial length of the drill bit shank. The two support shafts 211 and the pressure wheel 2121 form a triangular clamping area, which is convenient for clamping the drill bit shank. In addition, the two support shafts 211 rotating in the same direction and at the same speed can drive the drill bit to rotate in the opposite direction of the support shafts while supporting the drill bit, see Figure 4 As indicated by the arrows, according to the principle of mechanics, when the two support shafts 211 rotate in the same direction, the rotation direction of the drill bit 001 is opposite to that of the support shaft 211. At the same time, the pressure wheel 2121 rotates in the same direction as the support shaft 211 under the drive of the drill bit 001, thereby ensuring that the drill bit is clamped and in a horizontal state.

[0039] Furthermore, the pressure wheel assembly 212 also includes a second support member 2122 arranged at the bottom of the flip member 221 in the horizontal direction, a pressure wheel rod 2123 parallel to the second support member 2122 and arranged on the flip member 221, and a return spring 2125 arranged between the pressure wheel rod 2123 and the second support member 2122; wherein, a positioning shaft 2124 movably connected to the flip member 221 is provided in the middle part of the pressure wheel rod 2123, and the pressure wheel 2121 at one end of the pressure wheel rod 2123 close to the support shaft 211 is rotatable; the return spring 2125 is arranged at the other end of the pressure wheel rod 2121, and the two ends of the return spring 2125 are elastically abutted against the pressure wheel rod 2123 and the second support member 2122 respectively.

[0040] When in use, the pressure wheel rod 2123 is pressed down toward one end of the return spring 2125 to lift the pressure wheel 2121 upward, and then the drill is placed on the two support shafts, and the pressure wheel rod 2123 is released, so that the outer peripheral surface of the pressure wheel elastically abuts against the outer peripheral surface of the drill shank. Since this embodiment is used for a micro drill with a diameter of about 3 mm, the pressure generated by the return spring 2125 is sufficient to clamp the drill on the two support shafts. Those skilled in the art can also select a suitable return spring according to product specifications.

[0041] In summary, the drill bit welding strength testing and inspection machine provided by the utility model can clamp and rotate the drill bit through a clamping and rotating assembly, and cooperate with a testing mechanism to load pressure on the rotating drill bit, thereby ensuring that the circumference of the drill bit is tested and effectively avoiding missed detection and wrong detection; the drill bit is flipped upward by 90° using a flipping assembly, and the end face and side face of the drill bit can be inspected simultaneously in cooperation with the testing mechanism, thereby improving the efficiency and accuracy of product testing and reducing the labor intensity of testing personnel.

[0042] 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 drill bit welding strength testing machine, comprising a workbench (1), characterized in that: The workbench (1) is provided with a clamping and flipping mechanism (2), a testing mechanism (3) and a detection mechanism (4); The clamping and flipping mechanism (2) comprises a clamping and rotating assembly (21) for clamping a drill shank and rotating the drill around its axis, and a flipping assembly (22) for driving the clamping and rotating assembly (21) to drive the drill to rotate around one end of its shank so as to flip the drill 90 degrees. The testing mechanism (3) is arranged beside the clamping and flipping mechanism (2), and comprises a telescopic rod (31) arranged perpendicular to the axis of the drill bit, a testing rod (32) arranged on one end of the telescopic rod (31) close to the cutting portion of the drill bit, and a testing motor (33) for driving the telescopic rod (31) to drive the testing rod (32) to apply pressure to or release pressure on the cutting portion of the drill bit; The detection mechanism (4) comprises a detection lens (41) for detecting the welding part of the drill bit.

2. The drill bit welding strength testing and inspection integrated machine according to claim 1, characterized in that: The clamping and flipping mechanism (2) further comprises a first support member (23), the first support member (23) being provided with the flipping assembly (22) on a side facing the testing mechanism (3), the flipping assembly (22) comprising a flipping motor (222) arranged on the first support member (23), and a flipping member (221) drivingly connected to an output shaft of the flipping motor (222); the clamping and rotating assembly (21) being arranged on the flipping member (221).

3. The drill bit welding strength testing and inspection integrated machine according to claim 2, characterized in that: The clamping and rotating assembly (21) comprises a three-jaw clamp provided on one side of the flipping member (221) for clamping the drill bit in a horizontal direction, and a driving member for driving the three-jaw clamp to drive the drill bit to rotate around its axis.

4. The drill bit welding strength testing and inspection integrated machine according to claim 2, characterized in that: The clamping rotation assembly (21) comprises two support shafts (211) and a pressure wheel assembly (212) arranged on one side of the flip member (221), and a driving motor (213) arranged on the other side of the flip member (221) and used to drive the two support shafts (211) to rotate in the same direction and at the same speed, the two support shafts (211) are parallel to the axis of the drill bit and are arranged at intervals, and the pressure wheel assembly (212) comprises a pressure wheel (2121) arranged above the two support shafts (211), and the outer peripheral surface of the pressure wheel (2121) is elastically abutted against the outer peripheral surfaces of the two support shafts (211) at the same time.

5. The drill bit welding strength testing and inspection integrated machine according to claim 4, characterized in that: The axial lengths of the two support shafts (211) are slightly smaller than the axial length of the drill shank portion.

6. The drill bit welding strength testing and inspection integrated machine according to claim 4, characterized in that: The pressure wheel assembly (212) further comprises a second support member (2122), a pressure wheel rod (2123) and a return spring (2125). The second support member (2122) is arranged at the bottom of the flip member (221) in the horizontal direction, the pressure wheel rod (2123) is arranged parallel to the second support member (2122), and a positioning shaft (2124) movably connected to the flip member (221) is provided in the middle of the pressure wheel rod (2123), and the pressure wheel (2121) is rotatably connected to one end of the pressure wheel rod (2123) close to the support shaft (211); the return spring (2125) is arranged at the other end of the pressure wheel rod (2123), and the two ends of the return spring (2125) are elastically abutted against the pressure wheel rod (2123) and the second support member (2122) respectively.

7. The drill bit welding strength testing and inspection integrated machine according to claim 2, characterized in that: The workbench (1) is provided with a guide groove (11) on a side wall facing the first support member (23); a guide block (231) adapted to the guide groove (11) is provided at the lower portion of the first support member (23); a screw rod (111) is provided in the guide groove (11); the screw rod (111) is transmission-connected to the first support member (23) via a ball screw provided in the guide block (231); a screw motor (112) for driving the screw rod (111) to rotate around its axis is provided at one end of the screw rod (111).

8. The drill bit welding strength testing and inspection integrated machine according to claim 2, characterized in that: The testing mechanism (3) is arranged on the other side of the workbench (1) opposite to the first supporting member (23) via a third supporting member (34); a trapezoidal groove (311) is provided at the end of the telescopic rod (31); the testing rod (32) is arranged close to the notch of the trapezoidal groove (311), and the upper and lower ends of the testing rod (32) are respectively connected to corresponding groove walls of the trapezoidal groove (311).

9. The drill bit welding strength testing and inspection integrated machine according to claim 8, characterized in that: The pressure applied by the test rod (32) to the cutting portion of the drill bit is 5-6 kgf.

10. The drill bit welding strength testing and inspection integrated machine according to claim 8, characterized in that: The detection lens (41) is arranged on a side of the workbench (1) adjacent to the testing mechanism (3) via a fourth support member (42).

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