Alloy milling cutter sharpening clamp

Abstract

The utility model relates to the technical field of milling cutters, in particular to an alloy milling cutter sharpening clamp which comprises a U-shaped cutter rest, a sliding groove is formed in the U-shaped cutter rest, a plurality of sets of sliding blocks are arranged in the sliding groove in a sliding mode, a locating piece is fixed to the set of sliding blocks located on the rearmost side, and movable protruding plates are fixed to the other sets of sliding blocks. Meanwhile, a fixed convex plate is fixed to the position, located at the front end of the sliding groove, of the U-shaped tool rest, the fixed convex plate and the multiple sets of movable convex plates are located in the same plane, threaded holes formed in the fixed convex plate and the movable convex plates are internally in threaded connection with tightening bolts, and the positioning piece and the U-shaped tool rest are combined; the position of the positioning piece can be changed on the U-shaped tool rest, and meanwhile the position of the tightening bolt can be adjusted correspondingly.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to a tool sharpening fixture for alloy milling cutters. Background Art

[0002] The milling cutter is made of alloy material and has high strength, but the teeth of the milling cutter need to be polished after long-term use. The effect of manual polishing is not as good as mechanical polishing, and corresponding fixtures are required for mechanical polishing.

[0003] The current fixture for grinding milling cutters is a U-shaped tool holder. The middle and rear sections of the milling cutter are inserted into the U-shaped tool holder, and the milling cutter is pressed and fixed using the tightening bolts on the U-shaped tool holder. At the same time, in order to prevent the milling cutter from retreating due to the squeezing force of the grinding disc on the cutting edge of the milling cutter during grinding, a set of positioning parts will be fixed with bolts at the rear end of the U-shaped tool holder so that its front end contacts the rear end of the milling cutter, thereby playing a thrust limit role.

[0004] Different types of milling cutters have different overall lengths, so the placement of the locating piece also needs to change accordingly. And since the position of the tightening bolts on the U-shaped tool holder is fixed, the number of tightening bolts that can be used to press the milling cutter is also different. This solution provides an alloy milling cutter sharpening fixture, which improves the structure of the existing U-shaped tool holder, integrates the locating piece with the U-shaped tool holder to avoid the loss of the locating piece, and makes the position of the tightening bolt adjustable. Utility Model Content

[0005] The utility model aims to at least solve the problem in the prior art that the U-shaped tool holder and the positioning piece are separated from each other, which easily leads to the loss of the positioning piece, and the movement of the positioning piece and the position of the tightening bolt cannot be controlled in linkage.

[0006] The present invention provides an alloy milling cutter sharpening fixture, which is achieved by the following specific technical means: it includes a U-shaped tool holder, a slide groove is provided on the U-shaped tool holder, a plurality of groups of sliding blocks are slidably provided in the slide groove, a positioning piece is fixed on the slide groove of the group of sliding blocks located at the rearmost side, and movable convex plates are fixed on the slide grooves of the other groups, and a fixed convex plate is fixed on the front end of the slide groove on the U-shaped tool holder, and tightening bolts are threadedly connected in the threaded holes provided on the fixed convex plate and the movable convex plate, so that the positioning piece can change its position on the U-shaped tool holder, and the position of the tightening bolt can be adjusted accordingly.

[0007] Preferred technical solution 1: The position of the fixed convex plate corresponding to the back side of the U-shaped tool holder and the back sides of multiple groups of sliders are fixed with convex shafts, and the adjacent two groups of convex shafts are connected by a folding rod group. The setting of multiple groups of folding rod groups realizes the synchronous control of the spacing between multiple groups of sliders.

[0008] Optimal technical solution 2: two adjacent groups of folding rod groups are hingedly connected, and multiple groups of folding rod groups constitute a scissor-type mechanism to achieve linkage control between multiple groups of sliders.

[0009] Preferred technical solution three: A rear plate is fixed to the rear end of the U-shaped tool holder, and a threaded hole is provided on the rear plate for a screw rod rotatably arranged on the rear wall of the positioning member to pass through.

[0010] Preferred technical solution four: a sleeve shaft is rotatably provided on the rear plate, and the screw rod passes through the inner hole of the sleeve shaft and is slidably connected to the sleeve shaft.

[0011] Optimal technical solution five: a power shaft is rotatably provided on the rear plate, a driving gear is sleeved on the power shaft, and a driven gear is sleeved on the sleeve shaft, the driving gear is meshed with the driven gear, and the rotation of the control shaft can drive the screw rod to rotate and adjust the position of the positioning member.

[0012] The above structure enables this solution to have the following beneficial effects:

[0013] 1. By improving the existing U-shaped tool holder, the positioning piece is organically combined with the U-shaped tool holder, so that the position of the positioning piece can be adjusted without causing the loss of the positioning piece;

[0014] 2. The movable convex plate is used to adjust the positions of the multiple sets of tightening bolts located in front of the positioning member according to the movement of the positioning member, ensuring that a fixed number of tightening bolts can be pressed and fixed with milling cutters of different lengths to maintain a stable clamping force;

[0015] 3. The setting of the folding rod group realizes the linkage control of the positioning parts and the tightening bolt positions, which increases the convenience of adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0018] Figure 2 This is the rear view of this scheme;

[0019] Figure 3 This is a schematic diagram of the structure of the slider of this scheme;

[0020] Figure 4 This is a schematic diagram of the structure of the movable convex plate and the fixed convex plate of this scheme.

[0021] Among them, 1. U-shaped tool holder, 101. slide groove, 102. inner groove, 103. back plate, 104. mounting plate, 1041. mounting hole, 2. slider, 3. positioning piece, 4. movable convex plate, 5. fixed convex plate, 6. tightening bolt, 7. convex shaft, 8. folding rod group, 801. rod one, 802. rod two, 9. screw, 10. sleeve shaft, 11. power shaft, 12. driving gear, 13. driven gear. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 and Figure 3-Figure 4 The alloy milling cutter sharpening fixture comprises a U-shaped tool holder 1, a slide groove 101 is provided on the U-shaped tool holder 1, a plurality of groups of slide blocks 2 are slidably provided in the slide groove 101, a positioning member 3 is fixed on a group of slide blocks 2 located at the rear side, and a movable convex plate 4 is fixed on the other groups of slide blocks 2, and a fixed convex plate 5 is fixed at the front end of the slide groove 101 on the U-shaped tool holder 1, the fixed convex plate 5 and the plurality of groups of movable convex plates 4 are located in the same plane, and the threaded holes provided on the fixed convex plate 5 and the movable convex plate 4 are both threadedly connected with tightening bolts 6. Multiple groups of movable convex plates 4 and fixed convex plates 5 constitute the top wall of the U-shaped tool holder 1. An inner groove 102 is provided on the bottom wall of the U-shaped tool holder 1. The inner groove 102 is perpendicular to the positioning member 3. The inner groove 102 is located directly below the tightening bolt 6, which is used to facilitate the straight placement of the middle and rear part of the milling cutter and ensure that the tightening bolt 6 can accurately press the milling cutter. The positioning member 3 is combined with the U-shaped tool holder 1, so that the positioning member 3 can change its position on the U-shaped tool holder 1, and the position of the tightening bolt 6 can also be adjusted accordingly;

[0024] The back side of the U-shaped tool holder 1 corresponds to the position of the fixed convex plate 5 and the back side of the multiple groups of sliders 2 are fixed with convex shafts 7. The two adjacent groups of convex shafts 7 are connected by a folding rod group 8. The setting of the multiple groups of folding rod groups 8 can realize the control of the distance between adjacent sliders 2. When the position of the positioning piece on the U-shaped tool holder 1 is moved, the position of the multiple groups of sliders 2 will be adjusted synchronously to ensure that when the rear end of the milling cutter contacts the front end of the positioning piece 3, the same number of tightening bolts 6 are distributed in the middle and rear section of the milling cutter for pressing and fixing.

[0025] See also Figure 2, alloy milling cutter sharpening fixture, the folding rod group 8 is composed of a rod 1 801 and a rod 2 802, the middle parts of the rod 1 801 and the rod 2 802 are rotatably sleeved on a group of convex shafts 7, and the two ends of the rod 1 801 in one folding rod group 8 are respectively hinged to the ends of the rod 2 802 in the two adjacent groups of folding rod groups 8 in front and behind, and the two ends of the rod 2 802 in the folding rod group 8 are respectively hinged to the ends of the rod 1 801 in the two adjacent groups of folding rod groups 8 in front and behind, and multiple groups of folding rod groups 8 constitute a scissor-fork mechanism, and the spacing between multiple groups of sliders 2 is controlled by the folding and extension of the scissor-fork mechanism.

[0026] See also Figure 1-Figure 4 , alloy milling cutter sharpening fixture, a rear plate 103 is fixed to the rear end of the U-shaped tool holder 1, and a threaded hole is opened on the rear plate 103 for a screw rod 9 rotatably arranged on the rear wall of the positioning member 3 to pass through. The position of the positioning member 3 can be adjusted by rotating the screw rod 9. A sleeve shaft 10 is rotatably arranged on the rear plate 103, and the screw rod 9 passes through the inner hole of the sleeve shaft 10 and is slidably connected to the sleeve shaft 10. The rotation of the sleeve shaft 10 can control the rotation of the screw rod 9. At least two groups of screw rods 9 are arranged on the rear plate 103, and the number of sleeve shafts 10 is the same as that of the screw rods 9. The number of rods 9 is equal and their positions correspond one to one. A power shaft 11 is rotatably provided on the rear plate 103. A driving gear 12 is sleeved on the power shaft 11. At the same time, a driven gear 13 is sleeved on the sleeve shaft 10. The driving gear 12 is meshed with multiple sets of driven gears 13 at the same time. The rotation of the power shaft 11 can synchronously drive multiple sets of screw rods 9 to rotate and adjust the position of the positioning member 3. The setting of multiple sets of screw rods 9 can disperse the force and increase the service life of the screw rods 9. At the same time, a motor connected to the power shaft 11 is fixed in the rear plate 103.

[0027] See also Figure 2-Figure 3 , alloy milling cutter sharpening fixture, a mounting plate 104 is fixed on the back side of the U-shaped tool holder 1, and the fixture on the grinder can be clamped by the mounting plate 104. The mounting plate 104 is provided with a mounting hole 1041, and the U-shaped tool holder 1 can be directly installed and fixed on the grinder through the mounting hole 1041.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An alloy milling cutter sharpening fixture, comprising a U-shaped tool holder (1), characterized in that: The U-shaped tool holder (1) is provided with a slide groove (101), and a plurality of groups of slide blocks (2) are slidably provided in the slide groove (101), a positioning member (3) is fixed on the group of slide blocks (2) located at the rear side, and movable convex plates (4) are fixed on the other groups of slide blocks (2), and a fixed convex plate (5) is fixed at the front end of the slide groove (101) on the U-shaped tool holder (1), the fixed convex plate (5) and the plurality of groups of movable convex plates (4) are located in the same plane, and tightening bolts (6) are threadedly connected in the threaded holes provided on the fixed convex plate (5) and the movable convex plate (4).

2. The alloy milling cutter sharpening fixture according to claim 1, characterized in that: The back side of the U-shaped tool holder (1) corresponds to the position of the fixed convex plate (5) and the back sides of the multiple groups of slide blocks (2) are both fixed with convex shafts (7), and two adjacent groups of convex shafts (7) are connected by a folding rod group (8).

3. The alloy milling cutter sharpening fixture according to claim 2, characterized in that: The folding rod group (8) is composed of a rod one (801) and a rod two (802), the middle parts of the rod one (801) and the rod two (802) are rotatably sleeved on a group of convex shafts (7), and the two ends of the rod one (801) in one group of the folding rod group (8) are respectively hinged to the ends of the rod two (802) in the two groups of folding rod groups (8) adjacent to each other, and the two ends of the rod two (802) in the folding rod group (8) are respectively hinged to the ends of the rod one (801) in the two groups of folding rod groups (8) adjacent to each other.

4. The alloy milling cutter sharpening fixture according to claim 3, characterized in that: A rear plate (103) is fixed to the rear end of the U-shaped tool holder (1), and a threaded hole is provided on the rear plate (103) for a screw rod (9) rotatably arranged on the rear wall of the positioning member (3) to pass through.

5. The alloy milling cutter sharpening fixture according to claim 4, characterized in that: The rear plate (103) is rotatably provided with a sleeve shaft (10), and the screw rod (9) passes through the inner hole of the sleeve shaft (10) and is slidably connected to the sleeve shaft (10).

6. The alloy milling cutter sharpening fixture according to claim 1, characterized in that: A mounting plate (104) is fixed to the back side of the U-shaped tool holder (1), and the mounting plate (104) is provided with a mounting hole (1041).

7. The alloy milling cutter sharpening fixture according to claim 1, characterized in that: An inner groove (102) is provided on the bottom wall of the U-shaped tool holder (1), and the inner groove (102) is located directly below the tightening bolt (6).

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