Device for detecting abrasion of broach

Abstract

The utility model belongs to the technical field of broach wear detection equipment, and particularly relates to a device for broach wear detection. According to the specific technical scheme, the device comprises a positioning clamp mechanism, an observation mechanism and a rotating mechanism, wherein the observation mechanism can move in the x direction and the z direction; the positioning clamp mechanism comprises a first clamp and a second clamp, the first clamp corresponds to the second clamp, the second clamp can move in the x direction, and the first clamp and the second clamp clamp and fix a broach; and the rotating mechanism drives the broach to rotate. After the broach is installed, the broach does not need to be disassembled and assembled again in the detection process, abrasion detection of all teeth of the broach can be completed by rotating the broach and adjusting the position of the observation mechanism in the x direction, time and labor are saved, and operation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of broach wear detection equipment, and in particular relates to a device for broach wear detection. Background Art

[0002] A broach is a forming tool used for broaching. It is often used in batch and mass production to process round holes, spline holes, keyways, planes and formed surfaces, etc., with high productivity. In milling, the tool wear state has a significant impact on the machining accuracy and surface integrity of the workpiece. Excessive tool wear will lead to deterioration of the quality of the machined surface. The existing tool wear detection device has the following problems: after the broach is fixed and installed, it can only detect the wear of certain parts. If the wear of the broach needs to be fully detected, the broach needs to be reinstalled, which is time-consuming and labor-intensive and inconvenient to operate. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a device for detecting broach wear.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a device for detecting the wear of a broach, comprising a positioning fixture mechanism, an observation mechanism, and a rotating mechanism, wherein the observation mechanism can move in two directions, x and z; the positioning fixture mechanism comprises a first fixture and a second fixture, wherein the first fixture corresponds to the second fixture, and the second fixture can move in the x direction, and the first fixture and the second fixture clamp and fix the broach; the rotating mechanism drives the broach to rotate.

[0005] Preferably, the first fixture comprises a first fixed seat and a first top, and the first top is arranged on the first fixed seat; the second fixture comprises a second fixed seat and a second top, and the second top is arranged on the second fixed seat through a top sleeve, and the second top can slide in the top sleeve along the x direction, and a handwheel rod is arranged at one end of the second top away from the first top, and the handwheel rod is threadedly connected to the second fixed seat, and one end of the handwheel rod away from the second top extends out of the second fixed seat and is connected to a handwheel;

[0006] It also includes a base, the first fixing seat and the second fixing seat are arranged on the base, a T-shaped slot is arranged on the base along the x direction, and a locking mechanism adapted to the T-shaped slot is arranged at the bottom of the second fixing seat; the lower part of the locking mechanism slides in the inverted T-shaped slot and fixes the position of the second clamp on the base.

[0007] Preferably, the locking mechanism comprises a screw and a nut, the upper portion of the screw is threadedly connected to the second fixing seat, the lower portion of the screw is threadedly connected to the nut, and the nut is located in the transverse portion of the T-slot.

[0008] Preferably, the rotating mechanism includes a rotating disk rotatably arranged on the first fixed seat and a third clamp, the third clamp is arranged on one side of the rotating disk, the third clamp includes an upper clamp block and a lower clamp block, the lower end of the upper clamp block and the upper end of the lower clamp block are provided with V-shaped grooves, the two V-shaped grooves correspond to each other, and the upper clamp block and the lower clamp block are fixed by a locking screw or a locking bolt.

[0009] Preferably, the third clamp further comprises an I-shaped connecting block, one end of which is connected to the rotating disk, and the other end of which is connected to the upper clamping block.

[0010] Preferably, the observation mechanism comprises an electronic magnifying glass, and the electronic magnifying glass is communicatively connected to a display; the electronic magnifying glass can move in two directions, x and z.

[0011] Preferably, a movable base is slidably arranged on the base along the x direction, a sliding through hole is arranged on the movable base along the z direction, and a third slider is slidably arranged in the sliding through hole; one end of the third slider extends out of the sliding through hole and is connected to the electronic magnifying glass, and one end of the third slider away from the electronic magnifying glass extends out of the sliding through hole and is connected to the first slider; a second screw rod and a sliding rod are arranged on the movable base along the z direction, the first slider is slidably arranged on the sliding rod, and the first slider is threadedly connected to the second screw rod.

[0012] Preferably, a third fixing seat is fixedly provided on the base, a rotatable first screw rod is provided on the third fixing seat, a length direction of the first screw rod is parallel to the x direction, and the lower end of the movable base is threadedly connected to the first screw rod.

[0013] Preferably, slide rails are arranged on the base at both sides of the first screw rod, the two slide rails are arranged parallel to the T-slot, and the lower end of the movable base is slidably arranged on the two slide rails.

[0014] Preferably, the rotating disk and the first screw rod are controlled by a servo motor controlled by a PLC.

[0015] This application has the following beneficial effects:

[0016] By installing a positioning fixture mechanism, an observation mechanism, and a rotating mechanism on the workbench, the observation mechanism can move in the x and z directions, and the observation mechanism is used to observe the surface wear of the broach; the positioning fixture mechanism includes a first fixture and a second fixture, the second fixture can move in the x direction, and the first fixture and the second fixture clamp and fix the broach; the rotating mechanism drives the broach to rotate. The position of the observation mechanism is adjusted by moving in the z direction so that the observation mechanism can detect the wear of the broach. At the same time, the rotating mechanism drives the broach to rotate. After completing the detection of one row of teeth, the position of the observation mechanism is adjusted in the x direction to detect the next row of teeth. After the broach is installed, there is no need to disassemble and reassemble the broach during the detection process. By rotating the broach and adjusting the position of the observation mechanism in the x direction, the wear detection of all teeth of the broach can be completed, which saves time and effort and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the front side of the detection device of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the rear side of the detection device of the utility model;

[0019] Figure 3 for Figure 2 Schematic diagram of the local structure of A;

[0020] Figure 4 for Figure 1 Schematic diagram of the local structure of B.

[0021] In the figure: a first fixed seat 1, a first top 2, a second fixed seat 3, a second top 4, a base 5, a workbench 6, a T-slot 7, an upper clamping block 8, a lower clamping block 9, a V-slot 10, a locking bolt 11, a connecting block 12, a rotating disk 13, an electronic magnifying glass 14, a movable base 15, a sliding through hole 16, a third slider 17, a sliding rod 18, a first slider 19, a slide rail 20, a PLC-controlled servo motor 21, a first screw rod 22, a third fixed seat 23, a broach 24, a display 25, a hand wheel 26, a first button 27, a second button 28, a third button 29, and a second screw rod 30. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0023] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] like Figure 1-4 As shown, the utility model discloses a device for detecting the wear of a broach, comprising a positioning fixture mechanism, an observation mechanism, and a rotating mechanism. The positioning fixture mechanism, the observation mechanism, and the rotating mechanism are installed on a workbench 6. The observation mechanism can move in two directions, x and z, and the observation mechanism is used to observe the wear of the surface of the broach 24. The positioning fixture mechanism comprises a first fixture and a second fixture. The first fixture corresponds to the second fixture, and the second fixture can move in the x direction. The first fixture and the second fixture clamp and fix the broach 24. The rotating mechanism drives the broach 24 to rotate. When working, the two ends of the broach 24 are abutted against the first fixture and the second fixture, and the position of the second fixture is adjusted in the x direction, so that the first fixture and the second fixture clamp the broach 24. The position of the observation mechanism is adjusted in the z direction, so that the observation mechanism can detect the wear of the broach 24. At the same time, the rotating mechanism drives the broach 24 to rotate. After completing the detection of one row of teeth, the position of the observation mechanism is adjusted in the x direction to detect the next row of teeth.

[0025] Further, the first fixture includes a first fixed seat 1 and a first apex 2, wherein the first apex 2 is fixedly arranged on the first fixed seat 1; the second fixture includes a second fixed seat 3 and a second apex 4, wherein the second apex 4 is arranged on the second fixed seat 3 through a apex sleeve, wherein the second apex 4 can slide in the apex sleeve along the x direction, and a handwheel rod is arranged at one end of the second apex 4 away from the first apex 2, wherein the handwheel rod is threadedly connected to the second fixed seat 3, and the end of the handwheel rod away from the second apex 4 extends out of the second fixed seat 3 and is connected to a handwheel 26. Since the handwheel rod is threadedly connected to the second fixed seat 3, during operation, the handwheel 26 is turned to adjust the distance of the second apex 4 in the x direction.

[0026] The broach 24 is fixed by the first and second apexes 2 and 4, and both ends of the broach 24 are in point contact with the first and second apexes 2 and 4. When the rotating mechanism drives the broach 24 to rotate, the friction between the two ends of the broach 24 and the first and second apexes 2 and 4 can be reduced.

[0027] Furthermore, a base 5 is fixedly arranged on the workbench 6, and the first fixed seat 1 and the second fixed seat 3 are arranged on the base 5, wherein the first fixed seat 1 is fixedly mounted on the base 5, and the second fixed seat 3 can move along the x direction on the base 5. Specifically, a T-slot 7 is arranged on the base 5 along the x direction, and a locking mechanism adapted to the T-slot 7 is arranged at the bottom of the second fixed seat 3; the lower part of the locking mechanism slides in the inverted T-slot 7 and fixes the position of the second fixture on the base 5. The second fixed seat 3 can move along the direction, so as to adjust the position between the first top 2 and the second top 4, and fix or remove the broach 24. The position of the second fixed seat 3 on the base 5 can be fixed by the locking mechanism.

[0028] Furthermore, the locking mechanism includes a screw and a nut, the upper part of the screw is threadedly connected to the second fixing seat 3, and the lower part of the screw is threadedly connected to the nut, and the nut is located in the transverse part of the T-slot 7. When the second fixing seat 3 slides on the base 5, part of the screw is screwed outward so that the bottom of the screw is separated from the bottom of the T-slot 7; when the second fixing seat 3 needs to be fixed on the base 5, part of the screw is screwed inward so that the bottom of the screw is against the bottom of the T-slot 7, thereby locking the second fixing seat 3.

[0029] Furthermore, the rotating mechanism includes a rotating disk 13 rotatably arranged on the first fixed seat 1, and a third clamp, the third clamp is arranged on one side of the rotating disk 13, and the other side of the rotating disk 13 away from the third clamp is connected to a PLC-controlled servo motor 21, and the PLC-controlled servo motor 21 is fixedly arranged on the base 5; the third clamp includes an upper clamp block 8 and a lower clamp block 9, and a V-groove 10 is arranged at the lower end of the upper clamp block 8 and the upper end of the lower clamp block 9, and the two V-grooves 10 correspond to each other, and the upper clamp block 8 and the lower clamp block 9 are fixed by a locking screw or a locking bolt 11.

[0030] Furthermore, the third clamp also includes an I-shaped connecting block 12 , one end of which is fixedly connected to the rotating disk 13 , and the other end of which is fixedly connected to the upper clamping block 8 .

[0031] Furthermore, the observation mechanism includes an electronic magnifying glass 14, which is communicatively connected to a display 25. The surface wear of the broach 24 observed in real time by the electronic magnifying glass 14 is displayed on the display 25, which is convenient for the staff to operate; the electronic magnifying glass 14 can move in two directions, x and z.

[0032] An implementation method for the electronic magnifying glass 14 to move along the z direction: a movable base 15 is slidably arranged on the base 5 along the x direction, a sliding through hole 16 is arranged on the movable base 15 along the z direction, a third slider 17 is slidably arranged in the sliding through hole 16; one end of the third slider 17 extends out of the sliding through hole 16 and is connected to the electronic magnifying glass 14, and one end of the third slider 17 away from the electronic magnifying glass 14 extends out of the sliding through hole 16 and is connected to the first slider 19; a second screw rod 30 and a slide rod 18 are arranged on the movable base 15 along the z direction, the first slider 19 is slidably arranged on the slide rod 18, and the first slider 19 and the second screw rod 30 are threadedly connected, the PLC controls the servo motor 21 to control the second screw rod 30 to rotate, thereby driving the first slider 19 to move on the slide rod 18, thereby controlling the electronic magnifying glass 14 to move up and down in the z direction.

[0033] The electronic magnifying glass 14 moves in the x direction: the base 5 is fixedly provided with a third fixing seat 23, and the third fixing seat 23 is provided with a rotatable first screw rod 22, the length direction of the first screw rod 22 is parallel to the x direction, and the lower end of the mobile base 15 is threadedly connected with the first screw rod 22. The rotation of the first screw rod 22 drives the mobile base 15 to move in the x direction, thereby moving the electronic magnifying glass 14 in the x direction, which is convenient for observing the wear of multiple teeth on the broach 24. The first screw rod 22 is controlled to rotate by the servo motor 21 controlled by the PLC.

[0034] Furthermore, in order to better move the electronic magnifying glass 14 in the x direction, slide rails 20 are arranged on the base 5 on both sides of the first screw rod 22. The two slide rails 20 are arranged parallel to the T-slot 7, and the lower end of the movable base 15 is slidably arranged on the two slide rails 20.

[0035] The working process of a device for detecting the wear of a broach is as follows: the broach 24 is installed between a first clamp and a second clamp, the position of the second clamp on the base 5 is fixed by a locking mechanism, and the broach 24 is locked; the broach 24 is fixed to the third clamp by a locking screw or a locking bolt 11, and the fixed installation of the broach 24 is completed. The electronic magnifying glass 14 is precisely controlled to move in the x and z directions and to rotate by a handle. Specifically, the direction to be moved is selected by a first button 27, the moving magnification is selected by a second button 28, and the feeding distance is realized by a third button 29. The PLC controls the servo motor 21 to adjust the position of the electronic magnifying glass 14 in the z direction, thereby adjusting the focus of the electronic magnifying glass 14. The detection starts, and the information observed by the electronic magnifying glass 14 is displayed on the display 25. The rotating mechanism drives the broach 24 to rotate, and the detection of a row of teeth is completed; then the PLC controls the servo motor 21 to adjust the position of the electronic magnifying glass 14 in the x direction, and then the detection of the next row of teeth is performed until the detection of all teeth is completed.

[0036] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, modifications, and substitutions made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for detecting broach wear, characterized in that: It comprises a positioning fixture mechanism, an observation mechanism, and a rotation mechanism, wherein the observation mechanism can move in two directions, x and z; the positioning fixture mechanism comprises a first fixture and a second fixture, wherein the first fixture corresponds to the second fixture, and the second fixture can move in the x direction, and the first fixture and the second fixture clamp and fix the broach (24); the rotation mechanism drives the broach (24) to rotate.

2. The device for detecting broach wear according to claim 1, characterized in that: The first fixture comprises a first fixed seat (1) and a first centering pin (2), wherein the first centering pin (2) is arranged on the first fixed seat (1); the second fixture comprises a second fixed seat (3) and a second centering pin (4), wherein the second centering pin (4) is arranged on the second fixed seat (3) via a centering pin sleeve, wherein the second centering pin (4) can slide in the centering pin sleeve along the x direction, wherein a handwheel rod is arranged at one end of the second centering pin (4) away from the first centering pin (2), wherein the handwheel rod is threadedly connected to the second fixed seat (3), and wherein one end of the handwheel rod away from the second centering pin (4) extends out of the second fixed seat (3) and is connected to a handwheel (26); It also comprises a base (5), the first fixing seat (1) and the second fixing seat (3) are arranged on the base (5), a T-shaped slot (7) is arranged on the base (5) along the x direction, and a locking mechanism adapted to the T-shaped slot (7) is arranged at the bottom of the second fixing seat (3); the lower part of the locking mechanism slides in the inverted T-shaped slot (7) and fixes the position of the second clamp on the base (5).

3. The device for detecting broach wear according to claim 2, characterized in that: The locking mechanism comprises a screw and a nut, the upper portion of the screw is threadedly connected to the second fixing seat (3), the lower portion of the screw is threadedly connected to the nut, and the nut is located in the transverse portion of the T-shaped slot (7).

4. The device for detecting broach wear according to claim 3, characterized in that: The rotating mechanism comprises a rotating disk (13) rotatably arranged on the first fixed seat (1) and a third clamp, the third clamp being arranged on one side of the rotating disk (13), the third clamp comprising an upper clamping block (8) and a lower clamping block (9), the lower end of the upper clamping block (8) and the upper end of the lower clamping block (9) being provided with a V-shaped groove (10), the two V-shaped grooves (10) corresponding to each other, and the upper clamping block (8) and the lower clamping block (9) being fixed by a locking screw or a locking bolt (11).

5. The device for detecting broach wear according to claim 4, characterized in that: The third clamp further comprises an I-shaped connecting block (12), one end of the connecting block (12) being connected to the rotating disk (13) and the other end being connected to the upper clamping block (8).

6. The device for detecting broach wear according to claim 4, characterized in that: The observation mechanism comprises an electronic magnifying glass (14), and the electronic magnifying glass (14) is communicatively connected to a display (25); the electronic magnifying glass (14) can move in two directions, x and z.

7. The device for detecting broach wear according to claim 6, characterized in that: A movable base (15) is slidably arranged on the base (5) along the x direction, a sliding through hole (16) is arranged on the movable base (15) along the z direction, and a third sliding block (17) is slidably arranged in the sliding through hole (16); one end of the third sliding block (17) extends out of the sliding through hole (16) and is connected to the electronic magnifying glass (14), and one end of the third sliding block (17) away from the electronic magnifying glass (14) extends out of the sliding through hole (16) and is connected to the first sliding block (19); a second screw rod (30) and a sliding rod (18) are arranged on the movable base (15) along the z direction, the first sliding block (19) is slidably arranged on the sliding rod (18), and the first sliding block (19) and the second screw rod (30) are threadedly connected.

8. The device for detecting broach wear according to claim 7, characterized in that: A third fixed seat (23) is fixedly arranged on the base (5), a rotatable first screw rod (22) is arranged on the third fixed seat (23), the length direction of the first screw rod (22) is parallel to the x direction, and the lower end of the movable base (15) is threadedly connected to the first screw rod (22).

9. The device for detecting broach wear according to claim 8, characterized in that: Slide rails (20) are arranged on the base (5) and on both sides of the first screw rod (22); the two slide rails (20) are arranged parallel to the T-shaped slot (7); and the lower end of the movable base (15) is slidably arranged on the two slide rails (20).

10. The device for detecting broach wear according to claim 8, characterized in that: The rotating disk (13) and the first screw rod (22) are controlled by a servo motor (21) controlled by a PLC.

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