Milling cutter clamping device

Abstract

The utility model relates to the technical field of clamping devices, and discloses a milling cutter clamping device which comprises a clamping seat, a mounting seat is fixedly mounted at the top of the clamping seat, a milling cutter is arranged in the clamping seat, a mounting mechanism is arranged in the clamping seat, and a screw rod is arranged to move a connecting ring up and down so as to drive a trapezoidal block to move up and down. When the outer wall of the milling cutter is worn and is smaller than the preset size, the screw rod is continuously rotated to press the clamping piece on the milling cutter, and the limiting plate is pressed on the fixing ring to fix the milling cutter, so that the milling cutter cannot move up and down relative to the clamping seat; the gap is formed, when the gap is aligned with the fixing ring, the limiting plate cannot limit the fixing ring, at the moment, the milling cutter can be disassembled, transmission is achieved through the first gear and the second gear, the milling cutter can be disassembled and assembled only by rotating the lead screw, fixing is stable, and operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, in particular to a milling cutter clamping device. Background Art

[0002] A milling cutter is a rotating tool with one or more teeth used for milling. When working, each tooth cuts off the excess of the workpiece in turn and intermittently. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines. There are many types of milling cutters, including cylindrical milling cutters, face milling cutters, end mills, three-face milling cutters, angle milling cutters, saw blade milling cutters, T-type milling cutters, etc. Milling cutters often wear out during use and need to be replaced frequently. However, at present, milling cutters are more troublesome to install and replace, and cannot be quickly disassembled and assembled, which wastes time;

[0003] The existing Chinese patent CN209256428U discloses a milling cutter clamping device, which quickly installs and fixes the milling cutter through an elastic clamping mechanism, and further fixes the milling cutter through a fixing mechanism, so as to achieve quick installation and fixing of the milling cutter, and at the same time ensure the stability of the milling cutter, so that the milling cutter can be installed and disassembled quickly and conveniently, and can have a good fixing effect on the milling cutter, and will not affect the use of the milling cutter. At the same time, the pressing mechanism inside the clamping seat makes the slider 2 slide down under the compression of the spring 2, so that the push rod presses the milling cutter body, further ensuring its stability;

[0004] However, after the above-mentioned milling cutter clamping device uses the elastic clamping mechanism to install and fix the milling cutter, it is still necessary to use a fixing mechanism to further fix the milling cutter, and both the elastic clamping mechanism and the fixing mechanism need to be inserted into the milling cutter, which is prone to wear after long-term use, thereby making it impossible to stably fix the milling cutter. Utility Model Content

[0005] The purpose of the utility model is to provide a milling cutter clamping device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a milling cutter clamping device, comprising a clamping seat, a mounting seat is fixedly mounted on the top of the clamping seat, a milling cutter is arranged inside the clamping seat, and a mounting mechanism is arranged inside the clamping seat;

[0007] The cam is provided with a plurality of guide wheels, the guide wheels are provided with a plurality of guide wheels, the guide wheels are provided with a plurality of guide wheels, the plurality of guide wheels are provided with a plurality of guide wheels, the plurality of guide wheels are provided with a plurality of guide wheels, and the plurality of guide wheels are provided with a plurality of guide wheels.

[0008] Furthermore, a shielding plate is fixedly mounted on the bottom of the clamping seat by screws, and a avoidance groove is opened at the center of the shielding plate, and the inner diameter of the avoidance groove is the same as the outer diameter of the fixing ring.

[0009] Furthermore, a support plate is fixedly mounted on the inner wall of the clamping seat, a positioning rod is fixedly mounted on the top of the milling cutter, and the positioning rod is inserted into a positioning groove at the bottom of the support plate.

[0010] Furthermore, the clamping member includes a clamping member body, a groove is formed on the outer wall of the clamping member body away from the trapezoidal block, a support shaft is fixedly installed on the inner wall of the groove, a rotating roller is rotatably sleeved on the outer wall of the support shaft, and the edge of the rotating roller is rounded.

[0011] Furthermore, the guide grooves, trapezoidal blocks and clamping pieces are each provided with four and are distributed in a circular array in the clamping seat, and the number of teeth of the gear 2 is greater than the number of teeth of the gear 1.

[0012] Furthermore, a ball is provided on a side of the limiting plate that contacts the fixing ring, and a plurality of the ball are provided and are evenly spaced and distributed on the limiting plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. A screw rod is provided to move the connecting ring up and down, thereby driving the trapezoidal block to move up and down. The upward movement of the trapezoidal block pushes the clamping part to move toward the milling cutter. When the outer wall of the milling cutter is worn and smaller than the expected size, it is only necessary to continue to rotate the screw rod so that the clamping part is pressed on the milling cutter. The milling cutter is fixed by pressing the limit plate on the fixed ring so that the milling cutter cannot move up and down relative to the clamping seat. When a notch is provided so that the notch is aligned with the fixed ring, the limit plate cannot limit the fixed ring. At this time, the milling cutter can be disassembled. Through the transmission of gears 1 and 2, the milling cutter can be disassembled and assembled by only rotating the screw rod. The fixation is stable and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a structural schematic diagram of the bottom bottom view of the clamping seat of the utility model;

[0017] Figure 3 This is a structural schematic diagram of a front cross-sectional view of the clamping seat of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the front section of the clamping seat of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the installation mechanism part of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the clamping member of the utility model.

[0021] In the figure: 1. clamping seat; 2. milling cutter; 3. mounting seat; 4. mounting mechanism; 401. guide groove; 402. connecting ring; 403. slide groove; 404. slider; 405. clamping member; 406. trapezoidal block; 407. screw rod; 408. gear one; 409. gear two; 4010. rotating shaft; 4011. limit plate; 4012. fixing ring; 4013. notch; 5. shielding plate; 6. avoidance groove; 7. support plate; 8. positioning rod; 9. ball bearing; 4051. clamping member body; 4052. rotating roller; 4053. support shaft. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-Figure 6The utility model provides a technical solution: a milling cutter clamping device, comprising a clamping seat 1, a mounting seat 3 is fixedly mounted on the top of the clamping seat 1, a milling cutter 2 is arranged inside the clamping seat 1, and a mounting mechanism 4 is arranged inside the clamping seat 1;

[0024] The mounting mechanism 4 comprises a guide groove 401 and a fixing ring 4012. The guide groove 401 is arranged on the inner wall of the clamping seat 1. A slide groove 403 is provided on the inner wall of the guide groove 401. A slider 404 is slidably provided on the inner wall of the slide groove 403. A clamping piece 405 is fixedly installed on the outer wall of the slider 404. A connecting ring 402 is slidably provided on the inner wall of the clamping seat 1. A trapezoidal block 406 is fixedly installed on the top of the connecting ring 402. The trapezoidal block 406 is slidably provided in the guide groove 401. The inclined surface on the trapezoidal block 406 contacts the inclined surface on the clamping piece 405. A screw rod 407 is threadedly connected to the inner wall of the clamping seat 1. The top end of the screw rod 407 is rotatably connected to the inner wall of the clamping seat 1 through a bearing. A gear 408 is fixedly installed on the outer wall of the screw rod 407. The gear 408 is fixedly installed on the outer wall of the screw rod 407. 08 is meshed with gear 2 409, and a rotating shaft 4010 is fixedly installed on the inner wall of gear 2 409, and the top of the rotating shaft 4010 is rotatably connected to the inner wall of the clamping seat 1 through a bearing, and a fixing ring 4012 is fixedly installed on the top of the milling cutter 2. A limiting plate 4011 is fixedly installed on the outer wall of the rotating shaft 4010, and the limiting plate 4011 is pressed on the fixing ring 4012. A notch 4013 is opened at the bottom of the limiting plate 4011, and the inner diameter of the notch 4013 is larger than the outer diameter of the junction of the limiting plate 4011 and the fixing ring 4012. A clamping member 405 is provided to clamp and fix the milling cutter 2, and the clamping member 405 is limited by the slide groove 403 and the slider 404, so that the clamping member 405 can only move horizontally, and the trapezoidal block 406 contacts the clamping member 405. The clamping member 405 moves toward the milling cutter 2 to clamp the milling cutter 2. The screw rod 407 is provided to move the connecting ring 402 up and down, thereby driving the trapezoidal block 406 to move up and down. The trapezoidal block 406 moves up to push the clamping member 405 to move toward the milling cutter 2. When the outer wall of the milling cutter 2 is worn and smaller than the expected size, it is only necessary to continue to rotate the screw rod 407 to press the clamping member 405 on the milling cutter 2. The trapezoidal block 406 moves down so that the clamping member 405 is no longer pressed on the milling cutter 2. At this time, the milling cutter 2 can be disassembled and assembled, and the milling cutter 2 is fixed by pressing the limit plate 4011 on the fixing ring 4012. That is, when the limit plate 4011 is pressed on the fixing ring 4012, the milling cutter 2 cannot move up and down relative to the clamping seat 1. The notch 4013 is provided so that the notch 40 When 13 is aligned with the fixing ring 4012, the limiting plate 4011 cannot limit the fixing ring 4012, and the milling cutter 2 can be disassembled at this time, and the transmission is transmitted through the gear 1 408 and the gear 2 409, so that the milling cutter 2 can be disassembled and assembled by rotating the screw rod 407, and the fixation is stable and the operation is simple. There are four guide grooves 401, trapezoidal blocks 406, and clamping members 405, and the circular array is distributed in the clamping seat 1. The milling cutter 2 is clamped and fixed from four directions of the milling cutter 2 to ensure that the milling cutter 2 can be located in the center of the clamping seat 1. The number of teeth of the gear 2 409 is greater than the number of teeth of the gear 1 408. The speed of the rotating shaft 4010 is reduced by the difference in the number of teeth between the gear 2 409 and the gear 1 408. The clamping member 405 includes a clamping member body 4051.A groove is formed on the outer wall of the clamp body 4051 on one side away from the trapezoidal block 406, and a support shaft 4053 is fixedly installed on the inner wall of the groove. A rotating roller 4052 is rotatably sleeved on the outer wall of the support shaft 4053. The edge of the rotating roller 4052 is rounded. The clamp body 4051 and the rotating roller 4052 are connected by the support shaft 4053, so that the rotating roller 4052 can rotate relative to the clamp body 4051, that is, the clamp body 4051 can rotate relative to the clamp seat 1. When the milling cutter 2 is taken out and put in, the outer wall of the milling cutter 2 contacts the rotating roller 4052, so that the rotating roller 4052 can rotate, thereby avoiding the outer wall of the milling cutter 2 and the outer wall of the rotating roller 4052 from being worn;

[0025] A baffle plate 5 is fixedly installed at the bottom of the clamping seat 1 by screws, and an avoidance groove 6 is opened at the center of the baffle plate 5. The inner diameter of the avoidance groove 6 is the same as the outer diameter of the fixing ring 4012, so as to shield the bottom of the clamping seat 1, making the overall device more beautiful. A support plate 7 is fixedly installed on the inner wall of the clamping seat 1, and a positioning rod 8 is fixedly installed on the top of the milling cutter 2. The positioning rod 8 is inserted into the positioning groove at the bottom of the support plate 7, and is used to position the milling cutter 2 when the milling cutter 2 is installed. A ball 9 is arranged on the side of the limit plate 4011 that contacts the fixing ring 4012. There are multiple ball 9s, which are evenly spaced and distributed on the limit plate 4011. During the rotation of the limit plate 4011, the contact surface between the limit plate 4011 and the fixing ring 4012 is reduced, and wear between the fixing ring 4012 and the limit plate 4011 is avoided.

[0026] Working principle: When in use, insert the top of the milling cutter 2 into the clamping seat 1, rotate the screw rod 407 to move the connecting ring 402 upward, and the connecting ring 402 moves upward to drive the trapezoidal block 406 upward. As the trapezoidal block 406 moves upward, the clamping member 405 is resisted by the trapezoidal block 406 and moves toward the milling cutter 2 until the clamping member 405 is pressed on the milling cutter 2 to fix the milling cutter 2. As the screw rod 407 rotates, it drives the gear 1 408 to rotate, and then drives the gear 2 409 to rotate, so that the rotating shaft 4010 rotates, and the rotating shaft 4010 rotates to drive the limit plate 4011 to rotate. When the clamping member 405 is pressed on the milling cutter 2, the limit plate 4011 is in a state of being pressed on the fixed ring 4012, and when the outer wall of the milling cutter 2 is worn and smaller than the expected size, the screw rod 407 rotates more circles than expected, and the difference in the number of teeth between gear 1 408 and gear 2 409 allows the limit plate 4011 to still be pressed on the fixed ring 4012. When taking out the milling cutter 2, the screw rod 407 is rotated in the opposite direction to move the connecting ring 402 to the lowest end of the guide groove 401. At this time, the notch 4013 is aligned with the fixed ring 4012, and the trapezoidal block 406 no longer conflicts with the clamping member 405, and the milling cutter 2 can be taken out by directly pulling the milling cutter 2.

[0027] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A milling cutter clamping device, comprising a clamping seat (1), characterized in that: A mounting seat (3) is fixedly mounted on the top of the clamping seat (1), a milling cutter (2) is arranged inside the clamping seat (1), and a mounting mechanism (4) is arranged inside the clamping seat (1); The mounting mechanism (4) comprises a guide groove (401) and a fixing ring (4012); the guide groove (401) is arranged on the inner wall of the clamping seat (1); a slide groove (403) is provided on the inner wall of the guide groove (401); a slider (404) is slidably arranged on the inner wall of the slide groove (403); a clamping piece (405) is fixedly installed on the outer wall of the slider (404); a connecting ring (402) is slidably arranged on the inner wall of the clamping seat (1); a trapezoidal block (406) is fixedly installed on the top of the connecting ring (402); the trapezoidal block (406) is slidably arranged in the guide groove (401); an inclined surface on the trapezoidal block (406) contacts an inclined surface on the clamping piece (405); a screw rod (407) is threadedly connected to the inner wall of the connecting ring (402); the screw rod (407) is The top end is rotatably connected to the inner wall of the clamping seat (1) via a bearing, a gear 1 (408) is fixedly mounted on the outer wall of the screw rod (407), the gear 1 (408) is meshed with a gear 2 (409), a rotating shaft (4010) is fixedly mounted on the inner wall of the gear 2 (409), the top end of the rotating shaft (4010) is rotatably connected to the inner wall of the clamping seat (1) via a bearing, the fixing ring (4012) is fixedly mounted on the top of the milling cutter (2), a limiting plate (4011) is fixedly mounted on the outer wall of the rotating shaft (4010), the limiting plate (4011) is pressed on the fixing ring (4012), a notch (4013) is provided at the bottom of the limiting plate (4011), and the inner diameter of the notch (4013) is larger than the outer diameter of the junction between the limiting plate (4011) and the fixing ring (4012).

2. A milling cutter clamping device according to claim 1, characterized in that: A shielding plate (5) is fixedly mounted on the bottom of the clamping seat (1) by means of screws, and a relief groove (6) is provided at the center of the shielding plate (5), wherein the inner diameter of the relief groove (6) is the same as the outer diameter of the fixing ring (4012).

3. A milling cutter clamping device according to claim 1, characterized in that: A support plate (7) is fixedly mounted on the inner wall of the clamping seat (1), a positioning rod (8) is fixedly mounted on the top of the milling cutter (2), and the positioning rod (8) is inserted into a positioning groove at the bottom of the support plate (7).

4. A milling cutter clamping device according to claim 1, characterized in that: The clamping member (405) comprises a clamping member body (4051), wherein a groove is provided on the outer wall of the clamping member body (4051) away from the trapezoidal block (406), and a support shaft (4053) is fixedly installed on the inner wall of the groove, and a rotating roller (4052) is rotatably sleeved on the outer wall of the support shaft (4053), and the edge of the rotating roller (4052) is rounded.

5. The milling cutter clamping device according to claim 1, characterized in that: The guide groove (401), the trapezoidal block (406), and the clamping member (405) are each provided in four numbers and are distributed in a circular array in the clamping seat (1). The number of teeth of the second gear (409) is greater than the number of teeth of the first gear (408).

6. A milling cutter clamping device according to claim 1, characterized in that: A ball (9) is provided on the side of the limiting plate (4011) that contacts the fixing ring (4012), and a plurality of the ball (9) are provided and are evenly spaced and distributed on the limiting plate (4011).

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