Cutter base device and broaching machine

Abstract

The utility model relates to the technical field of broaching equipment, and discloses a tool base device and a broaching machine, the tool base device and the broaching machine comprise: a main body provided with a mounting groove, and a tool is arranged in the mounting groove; the first limiting groove is formed in the main body and is communicated with the mounting groove; the first key groove is formed in the periphery of the cutter, and the first key groove corresponds to the first limiting groove; the first fastening piece penetrates through the first limiting groove and abuts against the interior of the first key groove so as to limit movement of the cutter. The second limiting groove is formed in the main body and is communicated with the mounting groove; the second key groove is formed in the bottom of the cutter, and the second key groove corresponds to the second limiting groove; the limiting key is fixed in the second limiting groove and the second key groove through a second fastener and limits the movement of the cutter; according to the tool base device and the broaching machine, the first limiting mechanism is matched with the second limiting mechanism, the purpose of stably fixing the tool is achieved, the structural design is reasonable, the purpose of conveniently adjusting and replacing the tool is achieved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of broaching equipment, in particular to a tool seat device and a broaching machine. Background Art

[0002] The blind hole internal spline broaching machine is a special equipment used for processing the spline shape in the hole; a spline is an assembly structure used to connect two parts that rotate relative to each other; the blind hole internal spline broaching machine has a machine body, a turntable and a tool holder device.

[0003] In the prior art, the tool seat device often uses mechanical clamping to fix the tool, but this fixing method is not firm. During the processing, the tool is easily loosened due to the vibration of the machine during the broaching process. In addition, the adjustment of the tool often requires the help of changing the seat or using large tools to assist in completion, which is difficult to operate and time-consuming and labor-intensive. Utility Model Content

[0004] In view of this, the utility model provides a tool holder device and a broaching machine to solve the problems of unstable tool fixation and difficult tool adjustment at the tool holder device.

[0005] In the first aspect, the utility model provides a tool seat device and a broaching machine, comprising: a main body, provided with a mounting groove, a tool is placed at the mounting groove; a first limiting groove is opened in the main body and communicated with the mounting groove; a first key groove is opened in the periphery of the tool, the first key groove corresponds to the first limiting groove; a first fastener passes through the first limiting groove and abuts against the first key groove to limit the movement of the tool; a second limiting groove is opened in the main body and communicated with the mounting groove; a second key groove is opened at the bottom of the tool, the second key groove corresponds to the second limiting groove; a limiting key is fixed to the second limiting groove and the inside of the second key groove by means of a second fastener, and is suitable for limiting the movement of the tool.

[0006] Beneficial effects: The first fastener, the first limit groove and the first keyway constitute a first limit mechanism; the limit key, the second limit groove, the second keyway and the second fastener constitute a second limit mechanism; the first limit mechanism cooperates with the second limit mechanism to achieve the purpose of stable fixation of the tool under the double limit action, and it is highly practical; the tool seat device can ensure that the tool does not loosen during use, provide good stability for the tool, ensure precise cutting quality, improve processing efficiency, and ensure that the tool correctly enters the blind hole of the workpiece to obtain high-precision and high-quality splines, and it is highly practical.

[0007] Beneficial effects: The first keyway is opened on the periphery of the middle side of the tool, and the second keyway is opened on the periphery of the bottom side of the tool. When adjusting and replacing the tool, it is only necessary to remove the fastener at the first keyway, and the fastener at the second keyway does not affect the upward release of the tool. The structural design is reasonable, which improves production efficiency, achieves the purpose of convenient tool adjustment and replacement, improves the efficiency of tool change and disassembly, and provides a detachable and easy-to-disassemble tool installation method, which is suitable for the installation of a variety of tools with different cutting edges, thereby realizing spline processing in blind holes of various shapes and sizes to meet industry needs.

[0008] In an optional embodiment, the first fastener includes an end and a rod body, and the circumference of the rod body is provided with an external thread; the inner wall of the first limiting groove is provided with a first internal thread, and the first internal thread cooperates with the external thread so that the first fastener can be detachably connected to the first limiting groove.

[0009] In an optional embodiment, it also includes an anti-loosening member having a second internal thread, which cooperates with the external thread so that the anti-loosening member is screwed to the rod body and clamped between the end and the main body; wherein the rotation direction of the second internal thread is opposite to that of the first internal thread.

[0010] In an optional embodiment, after the second fastener passes through the limit key, it is inserted into the main body to fix the limit key in the second limit groove and the second key groove.

[0011] In an optional embodiment, the main body includes an upper cylinder and a lower cylinder, the diameter of the lower cylinder is smaller than the diameter of the upper cylinder; the first limiting groove is opened at the upper cylinder and extends along the radial direction of the upper cylinder; the second limiting groove is opened at the lower cylinder, and the groove is located on the side of the lower cylinder away from the upper cylinder.

[0012] In an optional embodiment, it also includes an end face, which is arranged on the outer peripheral surface of the upper cylinder and is arranged close to the notch of the first limiting groove; the end face is a plane, and the anti-loosening member is suitable for abutting against the end face.

[0013] In an optional embodiment, the tool has a cutting edge, and a portion of the upper cylinder close to the cutting edge is inclined to form a slope suitable for guiding out chips; the outer peripheral surface of the upper cylinder also includes an annular surface, and the end face is arranged at the annular surface.

[0014] In an optional embodiment, the rod body has a front rod and a rear rod, the diameter of the front rod is larger than the diameter of the rear rod; the first limiting groove includes a front groove and a rear groove, the diameter of the front groove is larger than the diameter of the rear groove; wherein the front rod is fixed in cooperation with the front groove, the rear rod is fixed in cooperation with the rear groove, and the end side of the rear rod abuts against the inside of the first key groove.

[0015] In a second aspect, the utility model further provides a broaching machine, comprising: a machine body, on which a guide device and a turntable are provided, and a plurality of tool holder devices are arranged at intervals on the turntable.

[0016] In an optional embodiment, a slot is provided at the turntable, and the lower cylinder of the tool holder device is snap-connected in the slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the tool holder device of the utility model;

[0019] Figure 2 It is a cross-sectional schematic diagram of the tool holder device of the utility model;

[0020] Figure 3 It is a cross-sectional schematic diagram of the tool of the utility model;

[0021] Figure 4 It is a cross-sectional view of the first fastener of the utility model;

[0022] Figure 5 It is a cross-sectional view of the main body of the utility model;

[0023] Figure 6 It is a schematic diagram of the cooperation between the tool holder device and the broaching machine of the utility model.

[0024] Description of reference numerals:

[0025] 1. Main body; 11. Mounting groove; 12. First limiting groove; 121. Front groove; 122. Rear groove; 13. Second limiting groove; 14. Upper cylinder; 141. End face; 142. Slope; 143. Annular face; 15. Lower cylinder; 2. Tool; 21. First keyway; 22. Second keyway; 23. Blade; 4. First fastener; 41. End; 42. Rod; 421. Front rod; 422. Rear rod; 5. Limiting key; 6. Second fastener; 7. Anti-loosening member; 8. Machine body; 81. Guide device; 82. Turntable; 821. Slot; 9. Tool holder device. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Combine the following Figures 1 to 6 , describing an embodiment of the utility model.

[0031] According to an embodiment of the utility model, on the one hand, a tool seat device is provided, comprising: a main body 1, the main body 1 is provided with a mounting groove 11 along the axial direction, and a tool 2 is installed and fixed at the mounting groove 11; a first limiting groove 12 is provided in the main body 1 and communicates with the mounting groove 11; a first key groove 21 is provided in the periphery of the tool 2, and the first key groove 21 corresponds to the first limiting groove 12; a first fastener 4 passes through the first limiting groove 12 and abuts against the first key groove 21 to limit the movement of the tool 2, and the first fastener 4 can be a screw; a second limiting groove 13 is provided in the main body 1 and communicates with the mounting groove 11; a second key groove 22 is provided Located at the bottom of the tool 2, the second keyway 22 corresponds to the second limit groove 13; the limit key 5 is fixed in the second limit groove 13 and the second keyway 22 by means of a second fastener 6, and is suitable for limiting the movement of the tool 2, and the second fastener 6 can be a screw; wherein, the first keyway 21 is opened at the periphery of the middle side of the tool 2, and the second keyway 22 is opened at the periphery of the bottom side of the tool 2, and the tool 2 is locked and fixed by means of the fasteners. When adjusting and replacing the tool 2, it is only necessary to remove the fastener at the first keyway 21, and the fastener at the second keyway 22 does not affect the upward escapement of the tool 2. The structural design is reasonable, and the tool 2 is stably fixed while the adjustment and replacement work is convenient.

[0032] Furthermore, the first fastener 4 includes an end 41 and a rod body 42, and the circumference of the rod body 42 is provided with an external thread; the inner wall of the first limiting groove 12 is provided with a first internal thread, and the first internal thread cooperates with the external thread so that the first fastener 4 can be detachably connected to the first limiting groove 12.

[0033] The tool seat device also includes an anti-loosening member 7 having a second internal thread, which cooperates with the external thread so that the anti-loosening member 7 is screwed to the rod body 42 and clamped between the end 41 and the main body 1; wherein the rotation direction of the second internal thread is opposite to that of the first internal thread; the anti-loosening member 7 can be a anti-loosening nut.

[0034] Combination Figure 2As shown, the first fastener 4 is threadedly tightened in the first limiting groove 12, the end 41 of the rod body 42 is pressed against the inner wall of the first keyway 21, the anti-loosening member 7 is screwed on the head of the first fastener 4, and is clamped between the end 41 and the main body 1. Under the combined effect, the first fastener 4 is fastened and fixed in the first limiting groove 12, and the tool 2 is pressed to limit the movement and rotation freedom of the tool 2 along the axial direction. In addition, the limit key 5 is pressed against the inner walls of the second limiting groove 13 and the second keyway 22 by means of the second fastener 6, so that the limit key 5 presses the tool 2 to limit the movement and rotation freedom of the tool 2; the first fastener 4 and the first limiting groove 12 and the first keyway 21 form a first limiting mechanism, the limit key 5, the second limiting groove 13, the second keyway 22, and the second fastener 6 form a second limiting mechanism, and the first limiting mechanism cooperates with the second limiting mechanism. Under the double limiting action, it is ensured that the tool 2 does not loosen during use, thereby achieving the purpose of stable fixation of the tool 2.

[0035] Combination Figure 2 As shown, when adjusting and replacing the tool 2 at the tool seat device, the first fastener 4 is removed to disable the first limiting mechanism, and the second keyway 22 is opened on the periphery of the bottom side of the tool 2, and the notch is located at the bottom end surface 141 of the tool 2, so that the second limiting mechanism is difficult to independently limit the axial upward movement of the tool 2, and the tool 2 can be smoothly taken out; when installing a new tool 2, the second limiting mechanism can play a positioning role, and the second keyway 22 is aligned and installed at the positioning key, so that the tool 2 can be installed quickly and accurately, ensuring that the tool changing and disassembly process is simple, saving time and effort.

[0036] Furthermore, the rod body 42 of the first fastener 4 has a front rod 421 and a rear rod 422, and the diameter of the front rod 421 is greater than the diameter of the rear rod 422; the first limiting groove 12 includes a front groove 121 and a rear groove 122, and the diameter of the front groove 121 is greater than the diameter of the rear groove 122; wherein the front rod 421 is fixedly cooperated with the front groove 121, the rear rod 422 is fixedly cooperated with the rear groove 122, and the end side of the rear rod 422 abuts against the inside of the first key groove 21, and the connection stability between the first fastener 4 and the first limiting groove 12 is improved through the cooperation and clamping limitation of the step structure.

[0037] In this embodiment, the first fastener 4, the first limiting groove 12, and the first keyway 21 constitute a first limiting mechanism, and the limiting key 5, the second limiting groove 13, the second keyway 22, and the second fastener 6 constitute a second limiting mechanism. The first limiting mechanism cooperates with the second limiting mechanism to achieve the purpose of stable fixation of the tool 2 under the double limiting action, and the practicality is strong; the tool seat device can ensure that the tool 2 does not loosen during use, provides good stability for the tool 2, ensures accurate cutting quality, improves processing efficiency, and can ensure that the tool 2 correctly enters the blind hole of the workpiece to obtain high-precision and high-quality splines, and the practicality is strong.

[0038] In this embodiment, the first keyway 21 is opened on the periphery of the middle side of the tool 2, and the second keyway 22 is opened on the periphery of the bottom side of the tool 2. When adjusting and replacing the tool 2, it is only necessary to remove the fastener at the first keyway 21, and the fastener at the second keyway 22 does not affect the upward escapement of the tool 2. The structural design is reasonable, the production efficiency is improved, the purpose of convenient adjustment and replacement of the tool 2 is achieved, the efficiency of tool changing and disassembly is improved, and a detachable and easy-to-disassemble tool 2 installation method is provided, which is suitable for the installation of a variety of tools 2 with different blades 23, thereby realizing spline processing in blind holes of various shapes and sizes to meet industry needs.

[0039] Optionally, the main body 1 of the tool seat device is made of high-strength material, specifically ultra-high-strength steel, which greatly improves its rigidity, wear resistance and corrosion resistance. At the same time, the main body 1 is precision-processed to ensure high-precision positioning of the tool 2, reduce vibration, and increase the service life of the tool seat device.

[0040] In some embodiments, in combination Figure 2 As shown, after the second fastener 6 passes through the limit key 5 , the thinner position of the end 41 is inserted into the main body 1 so that the limit key 5 is fastened and fixed in the second limit groove 13 and the second key groove 22 .

[0041] In some embodiments, in combination Figure 1 and Figure 2 As shown, the main body 1 includes an upper cylinder 14 and a lower cylinder 15, the diameter of the lower cylinder 15 is smaller than the diameter of the upper cylinder 14; the first limiting groove 12 is opened at the upper cylinder 14 and extends along the radial direction of the upper cylinder 14; the second limiting groove 13 is opened at the lower cylinder 15, and the groove is located on the side of the lower cylinder 15 away from the upper cylinder 14.

[0042] Furthermore, an end surface 141 is provided on the outer peripheral surface of the upper column 14, and the end surface 141 is arranged close to the notch of the first limiting groove 12; the end surface 141 is a plane, and the anti-loosening member 7 abuts against the end surface 141 to improve the anti-loosening performance.

[0043] In some embodiments, in combination Figure 1 and Figure 2 As shown, the tool 2 has a blade 23, and the portion of the upper cylinder 14 close to the blade 23 is inclined to form a slope 142 for guiding chips; the outer peripheral surface of the upper cylinder 14 also includes an annular surface 143, and the end surface 141 is arranged at the annular surface 143.

[0044] According to an embodiment of the utility model, on the other hand, a broaching machine is provided, comprising: a machine body 8, on which a guide device 81 and a turntable 82 are provided, and a plurality of tool holder devices 9 are arranged at intervals on the turntable 82; a clamping groove 821 is provided on the turntable 82, and a lower column 15 of the tool holder device 9 is clamped in the clamping groove 821, and a main body 1 of the tool holder device 9 is fixed to the turntable 82 by means of studs; in this embodiment, six workstations are provided on the turntable 82 of the broaching machine, and each workpiece needs to be broached in six workstations in sequence, and each workstation has two tools and two seats so as to cut an accurate spline shape on the workpiece.

[0045] Obviously, the above embodiments are only examples for clear explanation, and are not intended to limit the implementation methods. Although the embodiments of the present utility model are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations are all within the scope defined by the present utility model.

Claims

1. A tool holder device, characterized in that: include: The main body (1) is provided with a mounting groove (11), and a cutter (2) is arranged in the mounting groove (11); A first limiting groove (12) is formed in the main body (1) and communicates with the mounting groove (11); A first keyway (21) is formed on the periphery of the tool (2), wherein the first keyway (21) corresponds to the first limiting groove (12); A first fastener (4) passes through the first limiting groove (12) and abuts against the first key groove (21) to limit the movement of the tool (2); A second limiting groove (13) is formed in the main body (1) and communicates with the mounting groove (11); A second keyway (22) is formed at the bottom of the tool (2), wherein the second keyway (22) corresponds to the second limiting groove (13); The limit key (5) is fixed inside the second limit groove (13) and the second key groove (22) by means of a second fastener (6), and is suitable for limiting the movement of the tool (2).

2. The tool holder device according to claim 1, characterized in that: The first fastener (4) comprises an end portion (41) and a rod body (42), and the circumference of the rod body (42) is provided with an external thread; A first internal thread is provided on the inner wall of the first limiting groove (12), and the first internal thread cooperates with the external thread so that the first fastener (4) is detachably connected to the first limiting groove (12).

3. The tool holder device according to claim 2, characterized in that: It also includes a locking member (7) having a second internal thread, the second internal thread cooperates with the external thread, so that the locking member (7) is screwed to the rod body (42) and clamped between the end portion (41) and the main body (1); The rotation direction of the second internal thread is opposite to that of the first internal thread.

4. The tool holder device according to claim 1, characterized in that: After the second fastener (6) passes through the limiting key (5), it is inserted into the main body (1) so that the limiting key (5) is fixed in the second limiting groove (13) and the second key groove (22).

5. The tool holder device according to claim 3, characterized in that: The main body (1) comprises an upper cylinder (14) and a lower cylinder (15), and the diameter of the lower cylinder (15) is smaller than the diameter of the upper cylinder (14); The first limiting groove (12) is formed on the upper cylinder (14) and extends along the radial direction of the upper cylinder (14); The second limiting groove (13) is formed on the lower column (15), and the groove opening is located on a side of the lower column (15) away from the upper column (14).

6. The tool holder device according to claim 5, characterized in that: It also includes an end surface (141) disposed on the outer peripheral surface of the upper cylinder (14) and disposed close to the notch of the first limiting groove (12); The end surface (141) is a plane, and the anti-loosening component (7) is suitable for abutting against the end surface (141).

7. The tool holder device according to claim 6, characterized in that: The tool (2) has a blade (23), and a portion of the upper cylinder (14) close to the blade (23) is inclined to form a slope (142) suitable for guiding out scraps; The outer peripheral surface of the upper cylinder (14) further includes an annular surface (143), and the end surface (141) is arranged on the annular surface (143).

8. The tool holder device according to claim 7, characterized in that: The rod body (42) comprises a front rod (421) and a rear rod (422), and the diameter of the front rod (421) is greater than the diameter of the rear rod (422); The first limiting groove (12) comprises a front groove (121) and a rear groove (122), and the diameter of the front groove (121) is greater than the diameter of the rear groove (122); The front rod (421) is fixedly matched with the front slot (121), the rear rod (422) is fixedly matched with the rear slot (122), and the end side of the rear rod (422) abuts against the inside of the first key slot (21).

9. A broaching machine, characterized in that: Applicable to the tool holder device according to any one of claims 1 to 8 above, the broaching machine comprises: A machine body (8) is provided with a guide device (81) and a turntable (82), and a plurality of tool holder devices are arranged at intervals on the turntable (82).

10. The broaching machine according to claim 9, characterized in that The turntable (82) is provided with a slot (821), and the lower column (15) of the tool holder device is snap-connected in the slot (821).

Images