Milling cutter changing frame

Abstract

The utility model relates to the technical field of milling cutter assembly, and discloses a milling cutter replacing frame, which comprises a base, a cutter holder, a cutter holder and a cutter holder, the lower end of the supporting arm is connected with the base; the limiting strip is connected with the upper end of the supporting arm, the limiting strip is provided with a cutting edge limiting groove, the cutting edge limiting groove is used for containing a cutting edge of the cutter, the cutting edge limiting groove is located above the via hole, and the cutting edge limiting groove at least penetrates through the lower surface of the limiting strip; the size of the blade limiting groove in the width direction of the limiting strip is smaller than that of the blade limiting groove in the length direction of the limiting strip, and the groove wall of the blade limiting groove is used for limiting the position of the blade. The tool changing frame for the milling cutter has the advantages of being high in assembling efficiency, positioning accuracy and yield.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter assembly technology, specifically to a milling cutter tool changer. Background Technology

[0002] In Computer Numerical Control (CNC) machining technology, milling cutters are required for machining. Milling cutters typically consist of a cutting tool and a tool holder. The cutting tool is installed in the tool holder. The cutting tool has a cutting edge. In related technologies, the angle of the cutting edge is usually manually calibrated, which not only has a long assembly cycle, but also has a high error rate, affecting the yield rate. Utility Model Content

[0003] In view of this, the present invention provides a milling cutter changer to solve the problem of tool cutting edge direction calibration.

[0004] This utility model provides a milling cutter changer, comprising: a base with a through hole for placing a tool holder; a support arm with its lower end connected to the base; and a limiting strip connected to the upper end of the support arm, the limiting strip having a cutting edge limiting groove for accommodating the cutting edge of a tool, the cutting edge limiting groove being located above the through hole, the cutting edge limiting groove penetrating at least the lower surface of the limiting strip, the dimension of the cutting edge limiting groove in the width direction of the limiting strip being smaller than the dimension of the cutting edge limiting groove in the length direction of the limiting strip, and the groove wall of the cutting edge limiting groove defining the position of the cutting edge.

[0005] Beneficial effects: The milling cutter changer of this utility model, by setting a cutting edge limiting groove, since the dimension of the cutting edge limiting groove in the width direction of the limiting strip is smaller than the dimension of the cutting edge limiting groove in the length direction of the limiting strip, when the cutting edge is located in the cutting edge limiting groove, the opposite sides of the cutting edge in the thickness direction are limited by the groove wall in the width direction of the limiting strip, thereby limiting the position of the cutting edge and limiting the relative angle between the tool holder and the cutting edge. No manual positioning and calibration are required, which can improve assembly efficiency and positioning accuracy, shorten the production cycle, reduce assembly errors, and improve yield.

[0006] In one alternative embodiment, the blade limiting groove also extends through the upper surface of the limiting strip.

[0007] Beneficial effects: The cutting tool can be placed in the cutting edge limiting groove from above the limiting strip, and the cutting tool can move a large range in the vertical direction within the cutting edge limiting groove.

[0008] In one alternative embodiment, the blade limiting groove also extends through the end face of the limiting strip away from the support arm.

[0009] Beneficial effects: The cutting tool can be arranged in a large range along the length of the limiting strip, which is conducive to the cutting edge limiting groove adapting to cutting tools of different widths. In addition, the cutting tool can move a large range along the length of the limiting strip, which facilitates the positioning and installation between the cutting tool and the tool holder.

[0010] In one optional embodiment, the milling cutter changer further includes: a cover plate, the upper end of the support arm is provided with a receiving groove, the limiting strip is inserted into the receiving groove, the cover plate is detachably connected to the upper end of the support arm, and the limiting strip is pressed into the receiving groove.

[0011] Beneficial effects: When the relative positions of the cover plate and the support arm are not locked, the relative positions between the blade limiting groove and the through hole can be adjusted; when the relative positions of the cover plate and the support arm are locked, the relative positions of the limiting strip and the support arm are fixed, preventing relative displacement or shaking between the blade limiting groove and the through hole.

[0012] In one alternative embodiment, the support arm is height-adjustable relative to the base; and / or the limiting strip is height-adjustable relative to the support arm.

[0013] Beneficial effects: The relative position between the limiting strip and the base can be adjusted to change the relative position between the blade limiting groove and the handle, thus achieving the fit between the tool and the handle.

[0014] In one optional embodiment, the base has a mounting groove on its side and a threaded hole on the bottom wall of the mounting groove; the lower end of the support arm is inserted into the mounting groove and has a lifting hole, which extends along the height direction of the support arm; the base is connected to a threaded fastener, which passes through the lifting hole and is threadedly engaged with the threaded hole.

[0015] Beneficial effect: It can make the limit strip and the base relatively close or relatively far apart.

[0016] In one optional embodiment, the milling cutter changer further includes a positioning block, detachably disposed on the upper surface of the base, for engaging with the positioning notch of the tool holder.

[0017] Beneficial effects: It can prevent the tool holder from rotating relative to the milling cutter changer, and improve the positioning accuracy between the tool holder and the milling cutter changer.

[0018] In one optional embodiment, the upper surface of the base is provided with a groove, and the positioning block is disposed in the groove.

[0019] Beneficial effects: It can pre-position the relative position between the positioning block and the base, improving the positioning reliability between the positioning block and the base.

[0020] In one optional embodiment, there are two positioning blocks, which are located on opposite radial sides of the through hole.

[0021] Beneficial effects: It further improves positioning accuracy and reliability.

[0022] In one optional embodiment, the base includes: a top plate connected to the support arm and having the through hole; at least three support columns, the upper ends of which are connected to the top plate, and the at least three support columns are spaced apart circumferentially along the top plate; and a bottom plate, the lower ends of which are connected to the bottom plate and spaced apart from the tool holder.

[0023] Beneficial effects: By disassembling the base into a top plate, a bottom plate, and support columns, processing each part separately, and then assembling them, the processing difficulty of the base is reduced and the production efficiency of the base is improved. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is one of the structural schematic diagrams of the milling cutter tool changer according to an embodiment of the present utility model;

[0026] Figure 2 This is the second structural schematic diagram of the milling cutter changer according to an embodiment of the present utility model;

[0027] Figure 3 This is the third structural schematic diagram of the milling cutter changer according to an embodiment of the present utility model;

[0028] Figure 4 for Figure 3 A magnified view of a portion of region A in the middle;

[0029] Figure 5 This is one of the cross-sectional views of the milling cutter changer according to an embodiment of the present utility model;

[0030] Figure 6 This is a second sectional view of the milling cutter changer according to an embodiment of the present utility model;

[0031] Figure 7 This is a schematic diagram of the support arm of the milling cutter changer according to an embodiment of the present invention.

[0032] Figure 8This is a schematic diagram of the top plate of the milling cutter changer according to an embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the structure of the base plate of the milling cutter changer according to an embodiment of the present utility model;

[0034] Figure 10 This is an exploded view of the handle and the cutting tool of this utility model embodiment.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Milling cutter changer; 2. Tool holder; 21. Positioning notch; 22. Mounting port; 23. Elastic wall; 3. Cutting tool; 31. Cutting edge; 4. Locking nut;

[0037] 100. Base; 101. Through hole; 102. Mounting slot; 103. Threaded hole; 104. Groove; 110. Top plate; 111. Third countersunk hole; 112. Third threaded component; 113. Second positioning hole; 120. Support column; 130. Base plate; 131. Fourth countersunk hole; 132. Fifth countersunk hole;

[0038] 200, support arm; 201, receiving groove; 202, lifting hole; 203, first positioning hole;

[0039] 300, Limiting strip; 301, Blade limiting groove;

[0040] 400. Cover plate; 410. First countersunk hole; 411. First threaded part;

[0041] 500. Threaded fasteners;

[0042] 600, Positioning block; 610, Second countersunk hole; 611, Second threaded part. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] In the description of this utility model, "a plurality of" means two or more. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] The following is combined Figures 1 to 10 The following describes embodiments of the present invention.

[0048] According to an embodiment of the present invention, a milling cutter changer 1 is provided, which includes a base 100, a support arm 200 and a limiting bar 300.

[0049] The base 100 is provided with a through hole 101 for placing the knife handle 2. The lower end of the support arm 200 is connected to the base 100. The limiting strip 300 is connected to the upper end of the support arm 200. The limiting strip 300 is provided with a blade limiting groove 301 for accommodating the blade 31 of the tool 3. The blade limiting groove 301 is located above the through hole 101 and penetrates at least through the lower surface of the limiting strip 300. The dimension of the blade limiting groove 301 in the width direction of the limiting strip 300 (in the direction indicated by arrow X in the attached figure) is smaller than the dimension of the blade limiting groove 301 in the length direction of the limiting strip 300 (in the direction indicated by arrow Y in the attached figure). The groove wall of the blade limiting groove 301 is used to limit the position of the blade 31.

[0050] Among them, the tool holder 2 and the tool 3 can be applied to computer numerical control (CNC) machining technology, and the tool 3 can be a T-shaped tool.

[0051] Specifically, the tool holder 2 can be inserted into the through hole 101 from above the base 100. Then, the cross-sectional area of ​​the tool holder 2 increases from bottom to top and then decreases. The outer peripheral surface of the tool holder 2 will abut against the hole wall of the through hole 101 so that a part of the tool holder 2 is kept above the base 100, and the relative position between the tool holder 2 and the base 100 is fixed. Because the dimension of the cutting edge limiting groove 301 in the width direction of the limiting strip 300 is smaller than the dimension of the cutting edge limiting groove 301 in the length direction of the limiting strip 300, and the thickness of the cutting edge 31 of the T-shaped tool 3 is smaller than the dimension of the cutting edge limiting groove 301 in the width direction of the limiting strip 300, while the width of the cutting edge 31 is greater than the dimension of the cutting edge limiting groove 301 in the width direction of the limiting strip 300, and the width of the cutting edge 31 is smaller than the dimension of the cutting edge limiting groove 301 in the length direction of the limiting strip 300, the cutting edge 31 of the tool 3 extends into the cutting edge limiting groove 301. The sidewall of the cutting edge limiting groove 301 in the width direction of the limiting strip 300 will limit the position of the cutting edge 31. The tool 3 is positioned to prevent the tool 3 from rotating relative to the limit strip 300, thereby determining the relative angle between the tool 3 and the tool holder 2. The upper end of the tool holder 2 is provided with a mounting port 22. The side wall of the mounting port 22 includes multiple elastic walls 23, which are spaced apart circumferentially along the mounting port 22. The lower end of the tool 3 is inserted into the mounting port 22. A locking nut 4 is fitted on the side wall of the mounting port 22. After the lower end of the tool 3 is inserted into the mounting port 22, the locking nut 4 is tightened. The locking nut 4 drives the multiple elastic walls 23 to approach and stop against the lower end of the tool 3 to fix the relative position between the tool holder 2 and the tool 3. The locking nut 4 can be tightened by tools such as a wrench.

[0052] By setting the blade limiting groove 301, the angle of the blade 31 can be limited, thereby limiting the relative angle between the tool holder 2 and the blade 31. No manual positioning and calibration are required, which can improve assembly efficiency and positioning accuracy, shorten the production cycle, reduce assembly errors, and increase the yield.

[0053] like Figures 1-5 As shown, in the technical solution of this embodiment, the blade limiting groove 301 also penetrates the upper surface of the limiting strip 300. That is to say, the blade limiting groove 301 penetrates both the upper and lower surfaces of the limiting strip 300. The tool 3 can be placed in the blade limiting groove 301 from above the limiting strip 300, and the tool 3 has a large range of movement in the vertical direction (indicated by arrow Z in the figure) within the blade limiting groove 301.

[0054] In this way, cutting tools 3 of different lengths can be placed in the cutting edge limiting groove 301. When tool holders 2 of different lengths are placed on the milling cutter changer 1, the height of the cutting tool 3 will also change. By setting the cutting tool 3 to have a large range of movement in the cutting edge limiting groove 301 in the vertical direction, the milling cutter changer 1 can also accommodate tool holders 2 of a larger length range, thereby improving the application range of the milling cutter changer 1.

[0055] like Figures 1-5 As shown, in the technical solution of this embodiment, the blade limiting groove 301 also penetrates the end face of the limiting strip 300 away from the support arm 200. In this way, the blade 3 can be arranged in a large range along the length direction of the limiting strip 300, which is beneficial for the blade limiting groove 301 to adapt to blades 3 of different widths. The width of the blade 3 refers to the dimension of the blade 3 in the length direction of the limiting strip 300, and the blade 3 can move in a large range in the length direction of the limiting strip 300, which facilitates the positioning and installation between the blade 3 and the handle 2.

[0056] like Figures 1-3 As shown, in the technical solution of this embodiment, the milling cutter changer 1 also includes a cover plate 400, the upper end of the support arm 200 is provided with a receiving groove 201, the limiting strip 300 is inserted into the receiving groove 201, the cover plate 400 is detachably connected to the upper end of the support arm 200, and the limiting strip 300 is pressed into the receiving groove 201.

[0057] For example, the upper ends of the cover plate 400 and the support arm 200 are connected by a first threaded component 411. There are two first threaded components 411, which are located on opposite sides of the receiving groove 201. The upper surface of the cover plate 400 is provided with a first countersunk hole 410, and the upper end of the support arm 200 is provided with a first positioning hole 203. The first threaded component 411 passes through the first countersunk hole 410 and is threadedly engaged with the first positioning hole 203. The nut of the first threaded component 411 is located inside the first countersunk hole 410 to prevent the first threaded component 411 from protruding, thereby improving the connection stability and reducing the probability of collision with external objects.

[0058] The receiving groove 201 extends through the upper end face of the support arm 200 and both sides of the support arm 200 along the length of the limiting strip 300. When the first threaded component 411 is not locked in the relative position of the cover plate 400 and the support arm 200, the limiting strip 300 is movable relative to the support arm 200 in its length direction to adjust the relative position between the cutting edge limiting groove 301 and the through hole 101, ensuring the fitting accuracy between the tool 3 and the tool holder 2. When the first threaded component 411 locks the relative position of the cover plate 400 and the support arm 200, the relative position of the limiting strip 300 and the support arm 200 is fixed, preventing relative displacement or shaking between the cutting edge limiting groove 301 and the through hole 101, and ensuring the fitting accuracy between the tool 3 and the tool holder 2.

[0059] In the technical solution of this embodiment, the support arm 200 can be raised and lowered relative to the base 100, or the limiting bar 300 can be raised and lowered relative to the support arm 200, or the support arm 200 can be raised and lowered relative to the base 100, and the support arm 200 can be raised and lowered relative to the base 100.

[0060] In this way, when tool holders 2 of different lengths are placed in the through hole 101, the relative position between the limiting strip 300 and the base 100 can be adjusted to change the relative position between the cutting edge limiting groove 301 and the tool holder 2, thereby achieving the cooperation between the tool 3 and the tool holder 2.

[0061] like Figures 1-3 , Figure 6 as well as Figure 7 As shown, in this embodiment, the base 100 has a mounting groove 102 on its side, and a threaded hole 103 on the bottom wall of the mounting groove 102. The lower end of the support arm 200 is inserted into the mounting groove 102 and has a lifting hole 202, which extends along the height direction (i.e., the vertical direction) of the support arm 200. The base 100 is connected to a threaded fastener 500, which passes through the lifting hole 202 and is threadedly engaged with the threaded hole 103.

[0062] When the threaded fastener 500 locks the support arm 200 and the base 100, the relative position between the lower end of the support arm 200 and the base 100 is fixed. When the threaded fastener 500 does not lock the support arm 200 and the base 100, the lifting hole 202 is movable in the vertical direction relative to the threaded fastener 500, so that the support arm 200 can be moved in the vertical direction relative to the base 100. This allows the limiting strip 300 and the base 100 to move relatively closer or relatively farther apart, and the structure is simple.

[0063] The side of the support arm 200 facing away from the base 100 may not extend beyond the side of the base 100. For example, the side of the support arm 200 facing away from the base 100 may be flush with the side of the base 100. This avoids steps between the support arm 200 and the side of the base 100, reducing the probability of dust accumulation between them. This improves the cleanliness of the milling cutter changer 1 and ensures smooth movement between the support arm 200 and the base 100. It also makes the appearance of the milling cutter changer 1 cleaner and prevents interference between the support arm 200 and the outside world. In addition, the large contact area between the support arm 200 and the base 100 helps to improve the stability of their relative positions.

[0064] like Figure 1 , Figure 3 , Figure 5 and Figure 6As shown, in the technical solution of this embodiment, the milling cutter changer 1 also includes two positioning blocks 600. The positioning blocks 600 are detachably disposed on the upper surface of the base 100 and are used to cooperate with the positioning notch 21 of the tool holder 2. The two positioning blocks 600 are disposed on opposite sides of the tool holder 2.

[0065] Specifically, when the tool holder 2 is inserted into the through hole 101, the tool holder 2 is rotated so that the positioning notch 21 corresponds to the position of the positioning block 600. Then the positioning notch 21 engages with the positioning block 600, and under the action of gravity, the relative position between the tool holder 2 and the positioning block 600 is stable, which can increase the contact area between the milling cutter changer 1 and the tool holder 2, and the engagement between the milling cutter changer 1 and the tool holder 2 is more reliable.

[0066] This prevents the tool holder 2 from rotating relative to the milling cutter changer 1, improves the positioning accuracy between the tool holder 2 and the milling cutter changer 1, and since the positioning block 600 is detachable from the base 100, the installation position between the positioning block 600 and the base 100 can be finely adjusted, thereby ensuring the fitting accuracy between the positioning block 600 and the positioning notch 21 to compensate for possible machining errors.

[0067] The positioning block 600 is provided with a second countersunk hole 610, the upper surface of the base 100 is provided with a second positioning hole 113, the second threaded component 611 passes through the second countersunk hole 610 and is threadedly connected to the second positioning hole 113, and the nut of the second threaded component 611 is located in the second countersunk hole 610.

[0068] like Figures 1-3 , Figure 6 , Figure 8 As shown in the technical solution of this embodiment, the upper surface of the base 100 is provided with a groove 104, and the positioning block 600 is disposed in the groove 104. The groove 104 can extend through opposite sides of the base 100 along its extension direction. The processing of the groove 104 is relatively simple, and the second positioning hole 113 is provided with the bottom of the groove 104. The positioning block 600 abuts against the side walls of the groove 104 in the width direction (indicated by arrow X in the figure). The positioning block 600 can move along the length direction of the groove 104 (indicated by arrow Y in the figure). By providing the groove 104, the relative position between the positioning block 600 and the base 100 can be pre-positioned, improving the positioning reliability between the positioning block 600 and the base 100.

[0069] like Figure 8 As shown, in the technical solution of this embodiment, the center surface of the mounting groove 102 coincides with the center surface of the recess 104. Specifically, the center surfaces of the recess 104, the limiting strip 300, the support arm 200, and the mounting groove 102 all coincide.

[0070] In this way, the end of the groove 104 is connected to the mounting groove 102, and the positioning block 600 is set directly below the limiting strip 300. The position of the positioning block 600 is more correlated with the position of the limiting strip 300. Therefore, the positioning block 600 limits the position of the tool holder 2, and the limiting strip 300 limits the position of the tool 3. This is beneficial to fixing the relative position between the tool holder 2 and the tool 3 and improving the installation accuracy between the tool holder 2 and the tool 3.

[0071] like Figure 1 , Figure 2 , Figure 5 , Figure 8 and Figure 9 As shown, in this embodiment, the base 100 includes a top plate 110, a bottom plate 130, and at least three support columns 120. The top plate 110 is connected to the support arm 200 and has a through hole 101. The upper end of the support column 120 is connected to the top plate 110. The at least three support columns 120 are spaced apart circumferentially along the top plate 110. The lower end of the support column 120 is connected to the bottom plate 130, and the bottom plate 130 is spaced apart from the tool holder 2.

[0072] The groove 104 is provided on the upper surface of the top plate 110, the mounting groove 102 is provided on the outer peripheral surface of the top plate 110, the through hole 101 passes through the upper and lower surfaces of the top plate 110, the tool holder 2 is inserted into the through hole 101 from above the top plate 110, a part of the tool holder 2 is located above the top plate 110, and a part of the tool holder 2 extends into the lower part of the top plate 110 through the through hole 101.

[0073] Furthermore, the upper surface of the top plate 110 is provided with a third countersunk hole 111, and the third threaded component 112 passes through the third countersunk hole 111 and is threadedly connected to the upper end of the support column 120. The nut of the third threaded component 112 is located inside the third countersunk hole 111. The lower surface of the bottom plate 130 is provided with a fourth countersunk hole 131, and the fourth threaded component passes through the fourth countersunk hole 131 and is threadedly connected to the lower end of the support column 120. The nut of the fourth threaded component is located inside the fourth countersunk hole 131.

[0074] By setting at least three support columns 120, and ensuring that these three support columns 120 are not arranged in a straight line, the support effect on the top plate 110 can be guaranteed, preventing the top plate 110 from tipping over. By disassembling the base 100 into the top plate 110, the bottom plate 130, and the support columns 120, and processing each part separately before assembling them, the processing difficulty of the base 100 can be reduced, and the production efficiency of the base 100 can be improved.

[0075] The base plate 130 is provided with a fifth countersunk hole 132. The base plate 130 is installed on the ground or other fixed surface by fasteners passing through the fifth countersunk hole 132 to fix the position of the milling cutter changer 1 and prevent the milling cutter changer 1 from shaking during use.

[0076] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A milling cutter tool changer, characterized in that, include: A base (100) is provided with a through hole (101) for placing a knife handle (2); A support arm (200), the lower end of which is connected to the base (100); A limiting strip (300) is connected to the upper end of the support arm (200). The limiting strip (300) is provided with a blade limiting groove (301). The blade limiting groove (301) is used to accommodate the blade (31) of the tool (3). The blade limiting groove (301) is located above the through hole (101). The blade limiting groove (301) penetrates at least through the lower surface of the limiting strip (300). The dimension of the blade limiting groove (301) in the width direction of the limiting strip (300) is smaller than the dimension of the blade limiting groove (301) in the length direction of the limiting strip (300). The groove wall of the blade limiting groove (301) is used to limit the position of the blade (31).

2. The milling cutter changer according to claim 1, characterized in that, The blade limiting groove (301) also penetrates the upper surface of the limiting strip (300).

3. The milling cutter changer according to claim 1, characterized in that, The blade limiting groove (301) also penetrates the end face of the limiting strip (300) away from the support arm (200).

4. The milling cutter changer according to claim 1, characterized in that, Also includes: The cover plate (400) has a receiving groove (201) at the upper end of the support arm (200), and the limiting strip (300) is inserted into the receiving groove (201). The cover plate (400) is detachably connected to the upper end of the support arm (200) and presses the limiting strip (300) into the receiving groove (201).

5. The milling cutter changer according to claim 1, characterized in that, The support arm (200) is height-adjustable relative to the base (100); and / or The limiting bar (300) is adjustable in height relative to the support arm (200).

6. The milling cutter changer according to claim 1, characterized in that, The base (100) has a mounting groove (102) on its side, and the bottom wall of the mounting groove (102) has a threaded hole (103). The lower end of the support arm (200) is inserted into the mounting groove (102) and is provided with a lifting hole (202), which extends along the height direction of the support arm (200); The base (100) is connected to a threaded fastener (500), which passes through the lifting hole (202) and is threadedly engaged with the threaded hole (103).

7. The milling cutter changer according to claim 6, characterized in that, Also includes: A positioning block (600) is detachably disposed on the upper surface of the base (100) for engaging with the positioning notch (21) of the tool holder (2).

8. The milling cutter changer according to claim 7, characterized in that, The upper surface of the base (100) is provided with a groove (104), and the positioning block (600) is disposed in the groove (104).

9. The milling cutter changer according to claim 8, characterized in that, There are two positioning blocks (600), which are located on opposite radial sides of the through hole (101).

10. The milling cutter changer according to any one of claims 1-9, characterized in that, The base (100) includes: A top plate (110) is connected to the support arm (200) and is provided with the through hole (101); At least three support columns (120) are provided, the upper ends of which are connected to the top plate (110), and the at least three support columns (120) are arranged at intervals along the circumference of the top plate (110). The bottom plate (130) is connected to the bottom plate (130) at the lower end of the support column (120) and is spaced apart from the tool holder (2).

Images