Automatic detecting and positioning device for drill bit

Abstract

The utility model relates to a drill bit automatic detection positioning device, and relates to the drill bit auxiliary tool field, the drill bit automatic detection positioning device comprises a pedestal, the pedestal is provided with a first support, the upper end face of the first support is provided with a detection platform, the lower end face of the detection platform is provided with a detection block, and the detection block is connected with the lower end face of the detection platform through a spring; the upper end face of the detection platform is provided with a first sensor, the detection platform is provided with a connecting hole used for communicating a first sensor probe with the upper end face of the detection block, the base is provided with a drill clamp, and a first driving device used for controlling the drill to move and rotate in the vertical direction is arranged between the drill clamp and the base. After the drill bit is installed in the drill bit clamp, the first driving device moves the drill bit upwards and ejects the detection block upwards until the upper end face of the detection block abuts against the lower end face of the detection platform, at the moment, the first sensor detects the detection block, the moment is recorded as a zero point, and at the moment, the initial position of the drill bit is determined.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of drill bit auxiliary tools, in particular to a drill bit automatic detection positioning device. BACKGROUND

[0002] At present, in the process of machining the water supply valve piston, when the hole on the water supply valve piston workpiece needs to be cleaned, a drill bit is usually used to clean the burrs or sundries in the hole. Since the hole depth is processed in advance and does not need to be changed, the depth of the drill bit entering the hole needs to be accurately controlled, and a machine is usually used instead of manual operation to clean the hole.

[0003] The related technology can refer to the drill bit positioning device disclosed in Chinese Patent No. CN109049362A, which comprises a clamp, a sliding sleeve, a positioning sleeve and a positioning device. The clamp is coaxially sleeved on the drill gun head. The end of the sliding sleeve close to the drill gun is slidably sleeved on the outside of the clamp. The end of the sliding sleeve close to the drilling plane is provided with a positioning device. The inside of the end of the sliding sleeve close to the drilling plane is detachably connected with the positioning sleeve. The center of the positioning sleeve is provided with a positioning guide hole coaxially arranged with the drill bit.

[0004] For the related technology in the above, the positioning sleeve can only improve the perpendicularity between the drill bit and the object to be machined. When the drill bit is installed into the drill bit clamp each time, the length of the drill bit protruding out of the clamp is difficult to control, and the position of the drill bit entering cannot be positioned, so it is difficult to determine the initial position of the drill bit. Content of the utility model

[0005] In order to facilitate the determination of the initial position of the drill bit, the present application provides a drill bit automatic detection positioning device.

[0006] The present application provides a drill bit automatic detection positioning device, which adopts the following technical scheme:

[0007] A drill bit automatic detection positioning device comprises a base, the base is provided with a first support, the upper end surface of the first support is provided with a detection platform, the lower end surface of the detection platform is provided with a detection block, a spring is arranged between the detection block and the lower end surface of the detection platform for connection, the upper end surface of the detection platform is provided with a first sensor, the detection platform is provided with a connecting hole for connecting the probe of the first sensor and the upper end surface of the detection block, the base is provided with a drill bit clamp, and a first driving device for controlling the vertical movement and rotation of the drill bit is arranged between the drill bit clamp and the base.

[0008] By adopting the above technical scheme, when the drill bit clamp is provided with a drill bit, the first driving device moves the drill bit upward and pushes the detection block upward until the upper end surface of the detection block abuts against the lower end surface of the detection platform. At this time, the first sensor detects the detection block and records the zero point at this time. At this time, the initial position of the drill bit is determined.

[0009] Optionally, the first support and the detection platform are provided with a second driving device, and the second driving device is used for driving the horizontal movement of the detection platform.

[0010] By using the above technical scheme, after the depth of the drill bit is positioned, the second driving device moves the detection platform away, so that the detection platform does not interfere with the subsequent use of the drill bit.

[0011] Optionally, the first support is provided with a second sensor used for detecting whether the drill bit is broken.

[0012] By using the above technical scheme, when the drill bit is broken, the second sensor installed on the first support cannot detect the position of the drill bit, and then it is judged that the drill bit has been broken, and the machine is stopped in time and the operator is prompted to replace the drill bit and reposition.

[0013] Optionally, a threaded hole communicating with the outside of the detection platform is arranged on the horizontal side of the detection platform, and the detection platform is provided with a fixing bolt arranged in the threaded hole.

[0014] By using the above technical scheme, the first sensor is fixed by using the fixing bolt, which has the advantage of being convenient to disassemble, and when the first sensor is damaged or does not work normally, the first sensor can be replaced and repaired by unscrewing the bolt.

[0015] Optionally, the base is provided with a second support, the second support is provided with a placement block, the placement block is provided with a vertical through hole, an inner wall of the through hole is provided with a placement table used for placing a workpiece, and the placement block is arranged directly above the drill bit clamp.

[0016] By using the above technical scheme, after the depth positioning of the drill bit is completed, the drill bit is moved upward by using the first driving device, and the drill bit is rotated, so that the drill bit is cleaned and processed, and the placement block and the placement table effectively reduce the movement of the workpiece.

[0017] Optionally, the base is provided with a third support, the third support is provided with a push block, the third support is provided with a third driving device used for driving the horizontal movement of the push block, the push block is provided with a boss, and one side of the placement block is provided with a groove communicating with the outside of the through hole. When the third driving device pushes out the push block, the boss is embedded in the groove.

[0018] By using the above technical scheme, when the workpiece in the placement block is processed, the third driving device installed on the third support pushes out the push block, and the boss is used to extrude the workpiece in the hole, so as to effectively prevent the rotation of the workpiece when the drill bit processes the workpiece.

[0019] Optionally, the boss is made of soft material.

[0020] By adopting the technical scheme, the soft material is used to provide a larger friction force without damaging the workpiece surface when the workpiece is fixed by extrusion.

[0021] Optionally, the base is provided with a fourth support, the fourth support is provided with a fourth driving device for moving the pressing block up and down, and the pressing block is arranged directly above the through hole.

[0022] By adopting the technical scheme, the pressing block and the fourth driving device are arranged, before the workpiece is processed, the fourth driving device pushes the pressing block to the workpiece, so that the workpiece is tightly pressed on the object placing table by the pressing block, and the workpiece is effectively prevented from moving in the vertical direction.

[0023] To sum up, the drill automatic detection positioning device has at least one of the following beneficial technical effects:

[0024] 1. When the drill is arranged in the drill clamp, the first driving device moves the drill upward and pushes the detection block upward until the upper end surface of the detection block abuts against the lower end surface of the detection platform, at this time, the first sensor detects the detection block and records the zero point at this time, and the positioning of the depth of the drill is realized.

[0025] 2. After the positioning of the depth of the drill is completed, the second driving device moves the detection platform away, so that the detection platform does not interfere with the subsequent use of the drill. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a drill automatic detection positioning device.

[0027] Figure 2 It is a schematic diagram of the cross section of a drill automatic detection positioning device.

[0028] Figure 3 It is Figure 2 It is an enlarged schematic diagram of part A in FIG. 1.

[0029] The reference signs are explained as follows: 1, base; 11, drill clamp; 12, first driving device; 2, first support; 21, detection platform; 211, first sensor; 212, detection block; 213, fixed bolt; 22, second driving device; 23, second sensor; 3, second support; 31, object placing block; 311, object placing table; 4, third support; 41, push block; 411, boss; 42, third driving device; 5, fourth support; 51, fourth driving device; 52, pressing block; 6, workpiece. DETAILED DESCRIPTION

[0030] The present application is further described in detail below with reference to all the accompanying drawings.

[0031] The drill automatic detection positioning device is disclosed in the embodiments of the present application.

[0032] Referring to Figure 1 A drill bit automatic detection positioning device, comprising a base 1, the base 1 is provided with a vertical upward drill bit clamp 11, the drill bit clamp 11 and the base 1 are connected through a first driving device 12. When in use, the drill bit clamp 11 clamps the drill bit. Since the stepping motor has the advantages of convenient control and high control precision, the first driving device 12 in the embodiment comprises two stepping motors, one stepping motor is vertically connected with the base 1 and the motor shaft is connected with the drill bit clamp 11 to control the rotation of the drill bit; the other stepping motor is horizontally placed and connected with the base 1 to control the drill bit clamp 11 to move in the vertical direction.

[0033] Referring to Figure 2 The base 1 is provided with a first support 2, the first support 2 is provided with a horizontally installed detection platform 21, the detection platform 21 is provided with a vertical connecting hole, a first sensor 211 is installed in the connecting hole, the detection platform 21 is provided with a threaded hole communicating with the connecting hole and the outside of the detection platform 21, and a fixing bolt 213 is penetrated into the threaded hole. In the embodiment, a proximity switch is preferably used as the first sensor 211, the proximity switch is placed in the connecting hole when in use, and the fixing bolt 213 is screwed into the threaded hole, so that the proximity switch is fixedly connected by being pressed by the fixing bolt 213.

[0034] Referring to Figure 1 The lower end surface of the detection platform 21 is provided with a detection block 212, and the detection block 212 is located directly below the connecting hole. In the embodiment, a rectangular block is preferably used as the detection block 212, and the detection block 212 is connected with the detection platform 21 through a spring. When the drill bit is positioned, the first driving device 12 is used to drive the drill bit to move upward, the drill bit pushes the detection block 212 to move upward, until the proximity switch detects that the detection block 212 abuts against the lower end surface of the detection platform 21, and the position of the drill bit at this time is recorded, which is the zero point of the drill bit. The position of the drill bit is positioned.

[0035] Referring to Figure 1 And Figure 2 The upper end surface of the first support 2 is provided with a second driving device 22, and a cylinder is used as the second driving device 22 in the embodiment. The cylinder body is connected with the upper end surface of the first support 2 by using a bolt, and the cylinder rod is horizontally connected with one side of the detection platform 21. When the cylinder rod is extended, the detection block 212 is located directly above the drill bit clamp 11, and when the cylinder rod is retracted, the detection platform 21 is separated from above the drill bit clamp 11. When the drill bit needs to be positioned, the cylinder is extended to move the detection platform 21 above the drill bit, and the detection block 212 is aligned with the drill bit; after the positioning is completed, the cylinder is retracted to move the detection platform 21 away from above the drill bit clamp 11, so that the detection platform 21 does not block the up-down movement of the drill bit.

[0036] Referring to Figure 1 AndFigure 2 The first support 2 is provided with a second sensor 23 which is at the same height as the detection platform 21, and the second sensor 23 is preferably a laser sensor in the embodiment. The laser sensor is horizontally directed to the drill bit, and the laser sensor can irradiate the drill bit when the drill bit is normally working and not broken. If the drill bit is broken, the laser sensor cannot detect the drill bit, and an alarm is sent to remind the operator to replace the drill bit.

[0037] Referring to Figure 3 The base 1 is provided with a second support 3 which is vertically arranged, and the second support 3 is provided with a horizontal placement block 31 which is vertically arranged. The placement block 31 is located directly above the drill bit clamp 11, and the placement block 31 is provided with a vertical through hole, and a placement table 311 is arranged on the inner wall of the through hole. When in use, the workpiece 6 to be machined is placed on the placement table 311, and the hole of the workpiece 6 to be machined faces downward. When the drill bit is positioned, the second driving device 22 is used to continue to clean the hole of the workpiece 6 arranged in the second support 3 upward. After the placement block 31 is arranged, the distance between the lower end surface of the detection platform 21 and the lower end surface of the workpiece 6 on the placement table 311 is fixed. The distance into the hole is accurately controlled.

[0038] Referring to Figure 1 With Figure 3 The base 1 is provided with a third support 4 which is provided with a third driving device 42. The third driving device 42 is preferably a pneumatic cylinder in the embodiment, and a push block 41 is arranged on the pneumatic cylinder rod. The side of the push block 41 away from the pneumatic cylinder rod is provided with a boss 411, and the side of the placement block 31 close to the push block 41 is provided with a groove which is matched with the boss 411. The push block 41 and the placement block 31 are in the same horizontal plane, and when the pneumatic cylinder pushes the push block 41 out, the boss 411 of the push block 41 is embedded in the groove of the placement block 31. When the boss 411 is embedded in the groove, the boss 411 can extrude the workpiece 6 placed on the placement table 311, so as to clamp the workpiece 6.

[0039] Referring to Figure 3 The boss 411 is made of soft material, and rubber is preferably used as the soft material in the embodiment. The rubber has the characteristics of easy replacement and low cost. When the rubber extrudes the workpiece 6 when the push block 41 is pushed out, the workpiece 6 will not be scratched or indented. In addition, the rubber is deformed after extrusion to generate large friction, which can effectively reduce the rotation of the workpiece 6 when the drill bit processes the workpiece 6.

[0040] Referring to Figure 2 With Figure 3The fourth support 5 is arranged on the base 1, and the fourth driving device 51 is arranged on the fourth support 5, and a cylinder is preferably used as the fourth driving device 51 in the embodiment, the cylinder rod is vertically downward, the pressing block 52 is arranged at the end of the cylinder rod, and the pressing block 52 has the same outer diameter as the workpiece 6. Before the drill bit enters the workpiece 6, the cylinder pushes out the cylinder rod, the pressing block 52 vertically moves downward and presses the workpiece 6 on the worktable 311, and the workpiece 6 is pressed on the worktable 311. After the drill bit enters the workpiece 6, the pressing block 52 presses the workpiece 6 on the worktable 311, and the workpiece 6 is effectively prevented from moving upward, so that the drill bit cannot clean the hole bottom of the workpiece 6.

[0041] The implementation principle of the drill bit automatic detection positioning device in the embodiment of the application is as follows: the second driving device 22 is used to move the drill bit upward to abut the detection block 212 against the lower bottom surface of the detection platform 21, the first sensor 211 detects that the detection block 212 abuts against the detection platform 21, and the second driving device 22 stops moving, at this time, the position of the drill bit is zero point, and since the workpiece is arranged on the worktable 311, the distance between the worktable 311 and the detection block 212 is fixed, so the depth of the drill bit entering the workpiece is facilitated to be controlled.

[0042] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so: equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. A drill bit automatic detection positioning device comprising a base (1), characterized in that: The base (1) is provided with a first support (2), the upper end surface of the first support (2) is provided with a detection platform (21), the lower end surface of the detection platform (21) is provided with a detection block (212), the detection block (212) and the lower end surface of the detection platform (21) are connected by a spring, the upper end surface of the detection platform (21) is provided with a first sensor (211), the detection platform (21) is provided with a connecting hole for connecting the probe of the first sensor (211) and the upper end surface of the detection block (212), the base (1) is provided with a drill chuck (11), and the first driving device (12) for controlling the vertical movement and rotation of the drill is arranged between the drill chuck (11) and the base (1).

2. The automatic drill bit detection and positioning device of claim 1, wherein: The first support (2) and the detection platform (21) are provided with a second driving device (22), and the second driving device (22) is used for driving the horizontal movement of the detection platform (21).

3. The automatic drill bit detection and positioning device of claim 1, wherein: The first support (2) is provided with a second sensor (23) for detecting whether the drill is broken.

4. The automatic drill bit detection and positioning device of claim 1, wherein: The horizontal side of the detection platform (21) is provided with a threaded hole connected with the outside of the detection platform (21), and the detection platform (21) is provided with a fixing bolt (213) penetrating in the threaded hole.

5. The automatic drill bit detection and positioning device of claim 1, wherein: The base (1) is provided with a second support (3), the second support (3) is provided with a storage block (31), the storage block (31) is provided with a vertical through hole, the inner wall of the through hole is provided with a storage platform (311) for placing a workpiece (6), and the storage block (31) is arranged directly above the drill chuck (11).

6. The automatic drill bit detection and positioning device of claim 5, wherein: The base (1) is provided with a third support (4), the third support (4) is provided with a push block (41), the third support (4) is provided with a third driving device (42) for driving the horizontal movement of the push block (41), the push block (41) is provided with a boss (411), one side of the storage block (31) is provided with a groove connected with the outside of the through hole, and when the third driving device (42) pushes out the push block (41), the boss (411) is embedded in the groove.

7. The automatic drill bit detection and positioning device of claim 6, wherein: The boss (411) is made of soft material.

8. The automatic drill bit detection and positioning device of claim 1, wherein: The base (1) is provided with a fourth support (5), the fourth support (5) is provided with a fourth driving device (51) for driving the up-down movement of a pressing block (52), and the pressing block (52) is arranged directly above the through hole.

Images