Machine clamped fine milling cutter with quick change tool holder

Abstract

The utility model discloses a machine clamp formula fine milling cutter of quick change tool shank, including support frame, support frame, fine milling cutter pole, tool shank and clamping mechanism, support frame is fixed in support frame one side, and combination constitutes an integral structure, and tool shank sets up at the bottom of fine milling cutter pole, and fine milling cutter pole and tool shank are locked in clamping mechanism. The utility model has the beneficial effects that: in the utility model, through setting up clamping mechanism, and then through the cylinder in drive unit gear wheel movement, and then drive rack moves, through rack drive linkage link linkage, and then make the adjusting ring rotate, and through the lever drive clamping plate movement, and then realize for fine milling cutter pole, the clamping locking effect of tool shank, through rack displacement compensation realizes the self -adaptation adjustment of clamping force, avoids the deformation of cutter body or the clamping deficiency, and through clamping plate constitutes self -centering clamping structure simultaneously, makes fine milling cutter pole, tool shank can be in the same axis after being locked, avoids needing to repeat positioning.

Description

Technical Field

[0001] This utility model relates to a precision milling cutter, specifically a quick-change tool holder clamp-on precision milling cutter, belonging to the field of precision milling cutter technology. Background Technology

[0002] Milling is a manufacturing operation used to create parts of a desired shape by cutting away excess material. Specialized milling tools are used to machine various parts, and this operation is used in every industry, from aerospace to medical and electronics. The purpose of finish milling is to provide the desired surface finish and tolerances to the product. This operation eliminates the errors caused by rough milling. It is a finishing operation in the manufacturing shop, and finish milling requires the use of finish milling cutters.

[0003] However, most existing finish milling cutters have various problems. For example, in the wheel groove finish milling cutter disclosed in publication number CN101745677A, although it reduces tool cutting resistance, increases tool wear resistance, facilitates chip removal, and is beneficial for heat dissipation, vibration reduction, and tool breakage during cutting, thus improving tool life, in this technical solution and most current finish milling cutters, in order to ensure the stability of the finish milling cutter and improve machining accuracy, a mechanical clamp is generally used to fix the finish milling cutter. However, due to the difference in geometric shape between the tool holder (mostly cylindrical) and the tool body (often irregular or multi-edged), traditional fixtures need to design two independent clamping mechanisms. In the existing technology, the clamping action of the tool holder and the tool body has no mechanical linkage, so the two clamping mechanisms need to be operated step by step, and repeated positioning is required to ensure that the tool can be completely clamped on the same axis. The operation is not only cumbersome but also seriously affects the machining efficiency. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technologies are too simplistic. Specifically, the purpose of this utility model is to solve the aforementioned shortcomings of existing technologies by proposing a quick-change tool holder clamped finish milling cutter.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A quick-change clampable finish milling cutter includes a support frame, a support bracket, a finish milling cutter bar, a tool holder, and a clamping mechanism. The support bracket is fixed to one side of the support frame and is assembled into an integral structure. The tool holder is located at the bottom of the finish milling cutter bar, and the finish milling cutter bar and the tool holder are locked in the clamping mechanism.

[0007] The clamping mechanism includes a clamping unit and an adaptive drive unit. At least two sets of clamping units are provided in the support frame. Each clamping unit includes a fixed ring, a sliding groove, a clamping plate, a lever, and an adjusting ring. The fixed ring is fixed in the support frame. The sliding groove is provided on the inner wall of the fixed ring. The clamping plate is slidably engaged in the sliding groove. The lever is fixed on the clamping plate. The two adjusting rings are coaxially rotatably connected to the upper and lower sides of the fixed ring. The adaptive drive unit is provided in the support frame.

[0008] As a further improvement of this utility model: a limiting groove is provided through the adjusting ring, the lever is slidably engaged in the limiting groove, and the limiting groove is obliquely arranged.

[0009] As a further embodiment of this utility model: the clamping unit further includes a first connecting rod, a guide groove and a sliding plate. The first connecting rod is fixed at the edge of the adjusting ring. The guide groove is recessed in the support frame and the support frame and is interconnected. The sliding plate is slidably engaged in the guide groove.

[0010] As a further embodiment of this utility model: the clamping unit further includes a second docking rod and a linkage rod. The center of the second docking rod is fixed to the sliding plate, and one end of the linkage rod is rotatably connected to the second docking rod, while the other end is rotatably connected to the first docking rod.

[0011] As a further embodiment of this utility model: the drive unit includes a rack, a cylinder, a locator, and a gear. The rack is fixed on one side of the upper and lower sliding plates that are close to each other. The cylinder is fixed at the center of one side of the support frame. The locator is fixed at the telescopic end of the cylinder. The gear is rotatably connected in the locator and meshes with the upper and lower racks.

[0012] As a further improvement of this utility model, the cross-sections of both the guide groove and the sliding plate are trapezoidal.

[0013] The beneficial effects of this utility model are:

[0014] In this invention, a clamping mechanism is set up, which in turn drives the gear to move through the cylinder in the drive unit, which in turn drives the rack to move. The rack drives the linkage rod, which in turn causes the adjusting ring to rotate. The lever then drives the clamping plate to move, thereby achieving a clamping and locking effect on the milling cutter bar and the tool holder. The clamping force is adaptively adjusted through rack displacement compensation to avoid tool deformation or insufficient clamping. At the same time, the clamping plate forms a self-centering clamping structure, which ensures that the milling cutter bar and the tool holder are on the same axis after being locked, avoiding the need for repeated positioning and greatly increasing work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the clamping mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the fixing ring and its overall connection structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the clamping plate connection structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the precision milling cutter bar connection structure of this utility model.

[0020] In the diagram: 1. Support bracket, 2. Support frame, 3. Milling cutter bar, 4. Tool holder, 5. Clamping mechanism, 51. Fixing ring, 52. Slide groove, 53. Clamping plate, 54. Lever, 55. Adjusting ring, 56. Limiting groove, 57. First connecting rod, 58. Guide groove, 59. Sliding plate, 510. Second connecting rod, 511. Linkage rod, 512. Rack, 513. Cylinder, 514. Card holder, 515. Gear. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0022] like Figures 1 to 5 As shown, a quick-change clamped finish milling cutter includes a support frame 1, a support frame 2, a finish milling cutter bar 3, a tool holder 4, and a clamping mechanism 5. The support frame 2 is fixed to one side of the support frame 1 and is assembled into an integral structure. The tool holder 4 is located at the bottom of the finish milling cutter bar 3, and the finish milling cutter bar 3 and the tool holder 4 are locked in the clamping mechanism 5.

[0023] The clamping mechanism 5 includes a clamping unit and an adaptive drive unit. At least two sets of clamping units are provided in the support frame 2. The clamping unit includes a fixed ring 51, a sliding groove 52, a clamping plate 53, a lever 54, and an adjusting ring 55. The fixed ring 51 is fixed in the support frame 2. The sliding groove 52 is provided on the inner wall of the fixed ring 51. The clamping plate 53 is slidably engaged in the sliding groove 52. The lever 54 is fixed on the clamping plate 53. The two adjusting rings 55 are coaxially rotatably connected to the upper and lower sides of the fixed ring 51. The adaptive drive unit is provided in the support frame 1.

[0024] The clamping unit also includes a first docking rod 57, a guide groove 58, and a sliding plate 59. The first docking rod 57 is fixed at the edge of the adjusting ring 55. The guide groove 58 is recessed in the support frame 1 and the support frame 2 and is connected to each other. The sliding plate 59 is slidably engaged in the guide groove 58. The clamping unit also includes a second docking rod 510 and a linkage rod 511. The center of the second docking rod 510 is fixed on the sliding plate 59. One end of the linkage rod 511 is rotatably connected to the second docking rod 510, and the other end is rotatably connected to the first docking rod 57.

[0025] The drive unit includes a rack 512, a cylinder 513, a locator 514, and a gear 515. The rack 512 is fixed on one side of the upper and lower sliding plates 59 that are close to each other. The cylinder 513 is fixed at the center of one side of the support frame 1. The locator 514 is fixed to the telescopic end of the cylinder 513. The gear 515 is rotatably connected in the locator 514 and meshes with the upper and lower racks 512.

[0026] In this invention, a clamping mechanism 5 is provided, which in turn drives the gear 515 to move via the cylinder 513 in the drive unit, thereby driving the rack 512 to move. The rack 512 then drives the linkage rod 511 to move, causing the adjusting ring 55 to rotate. The lever 54 then drives the clamping plate 53 to move, thus achieving a clamping and locking effect on the milling cutter bar 3 and the tool holder 4. The clamping force is adaptively adjusted through rack displacement compensation, avoiding tool deformation or insufficient clamping. At the same time, the clamping plate 53 forms a self-centering clamping structure, ensuring that the milling cutter bar 3 and the tool holder 4 are on the same axis after being locked, avoiding the need for repeated positioning and greatly increasing work efficiency. Example 2

[0027] like Figures 1 to 5 As shown, in addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0028] A limiting groove 56 is provided through the adjusting ring 55. The lever 54 is slidably engaged in the limiting groove 56, and the limiting groove 56 is set at an angle. The lever 54 is limited by the limiting groove 56, so that the lever 54 can be forced to move, thereby driving the clamping plate 53 to move synchronously.

[0029] Both the guide groove 58 and the sliding plate 59 have trapezoidal cross sections. The trapezoidal structure limits the sliding plate 59 and prevents it from slipping.

[0030] Working principle: When using this precision milling cutter, first place the integral structure consisting of the precision milling cutter shank 3 and the cutter holder 4 inside the upper and lower fixed rings. Then, the cylinder 513 drives the gear 515 to move, which in turn drives the rack 512 and the sliding plate 59 to move. The second connecting rod 510 drives the linkage rod 511 to move together. At this time, the adjusting ring 55 rotates, which in turn drives the lever 54 to move through the limit groove 56. The lever 54 then drives the clamping plate 53 to move, and the clamping plate 53 clamps and locks the precision milling cutter.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick-change clamped finish milling cutter, comprising a support frame (1), a support bracket (2), a finish milling cutter shank (3), a tool holder (4), and a clamping mechanism (5), characterized in that, The support frame (2) is fixed on one side of the support frame (1) and is combined to form an integral structure. The tool holder (4) is set at the bottom of the milling cutter bar (3), and the milling cutter bar (3) and the tool holder (4) are locked in the clamping mechanism (5). The clamping mechanism (5) includes a clamping unit and an adaptive drive unit. At least two sets of clamping units are provided in the support frame (2). The clamping unit includes a fixed ring (51), a sliding groove (52), a clamping plate (53), a lever (54), and an adjusting ring (55). The fixed ring (51) is fixed in the support frame (2). The sliding groove (52) is provided on the inner wall of the fixed ring (51). The clamping plate (53) is slidably engaged in the sliding groove (52). The lever (54) is fixed on the clamping plate (53). The two adjusting rings (55) are coaxially rotatably connected to the upper and lower sides of the fixed ring (51). The adaptive drive unit is provided in the support frame (1).

2. The quick-change toolholder-type indexable finish milling cutter according to claim 1, characterized in that: A limiting groove (56) is provided through the adjusting ring (55), and the lever (54) is slidably engaged in the limiting groove (56), and the limiting groove (56) is obliquely arranged.

3. The quick-change toolholder-type indexable finish milling cutter according to claim 1, characterized in that: The clamping unit also includes a first docking rod (57), a guide groove (58), and a sliding plate (59). The first docking rod (57) is fixed at the edge of the adjusting ring (55). The guide groove (58) is recessed in the support frame (1) and the support frame (2) and is connected to each other. The sliding plate (59) is slidably engaged in the guide groove (58).

4. A quick-change toolholder-type indexable finish milling cutter according to claim 3, characterized in that: The clamping unit also includes a second docking rod (510) and a linkage rod (511). The center of the second docking rod (510) is fixed on the sliding plate (59). One end of the linkage rod (511) is rotatably connected to the second docking rod (510), and the other end is rotatably connected to the first docking rod (57).

5. A quick-change toolholder-type indexable finish milling cutter according to claim 1, characterized in that: The drive unit includes a rack (512), a cylinder (513), a locator (514), and a gear (515). The rack (512) is fixed on one side of the upper and lower sliding plates (59) that are close to each other. The cylinder (513) is fixed at the center of one side of the support frame (1). The locator (514) is fixed at the telescopic end of the cylinder (513). The gear (515) is rotatably connected in the locator (514) and meshes with the upper and lower racks (512).

6. A quick-change toolholder-type indexable finish milling cutter according to claim 3, characterized in that: The cross-sections of the guide groove (58) and the sliding plate (59) are both trapezoidal.

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