Efficient clamping device for handle-shaped cutter coating

Abstract

The utility model relates to an efficient clamping device for handle-shaped cutter coating, and belongs to the technical field of PVD coating tool clamps, the efficient clamping device comprises a planet shaft and a plurality of clamp discs arranged on the planet shaft, the planet shaft comprises a square shaft and a bearing disc arranged on the square shaft in a sleeving mode, a bearing is installed in the middle of the bearing disc, and the clamp discs are arranged on the bearing disc. The square shaft is fixed to an inner ring of the bearing, the clamp disc comprises a bottom disc, a top cover and a shifting fork assembly, the bottom disc is conical, the diameter of the bottom of the bottom disc is smaller than that of the top of the bottom disc, a conical receding groove is formed in the surface of the top end of the bottom disc, and an annular groove is formed in the inner wall of the bottom disc; a plurality of through grooves communicating with the annular groove are evenly formed in the peripheral side of the base plate, and the inclination angle of the through grooves ranges from 15 degrees to 24 degrees. The sleeve for clamping the cutter is arranged to be inclined by a certain angle, and the diameter of the base plate is reduced, so that the upper and lower clamping plates are partially overlapped in space, the space is repeatedly used, the clamping space is increased, and the loading capacity can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of PVD coating fixtures, and in particular to a high-efficiency clamping device for coating shank-shaped cutting tools. Background Art

[0002] PVD coated tools have become a hallmark of modern cutting tools, accounting for over 50% of all cutting tools. Various cutting tools, including turning tools, boring tools, drills, reamers, broaches, taps, thread combs, roller heads, milling cutters, forming tools, gear hobs, and gear shaping cutters, can all be coated to improve their performance.

[0003] Although PVD coatings are used in over 50% of cutting tools and are increasing, their application is currently limited by high coating costs. Coating costs are primarily determined by the coating equipment's furnace load. Coating companies typically set a price per furnace. Generally, the higher the furnace load per tool, the lower the coating cost, which in turn increases the company's competitive advantage and competitiveness.

[0004] In the existing technology, vertical clamping is generally used. Although vertical clamping ensures the coating quality of drill bits and side milling tools, the number of clampings is small and the coating cost is high, which limits the tool coating of many customers. Utility Model Content

[0005] The purpose of the present application is to provide an efficient clamping device for coating shank-shaped cutting tools to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present application provides an efficient clamping device for shank-shaped tool coating, which adopts the following technical solutions:

[0007] A high-efficiency clamping device for coating shank-shaped tools, comprising a planetary shaft and a plurality of clamping discs arranged on the planetary shaft, the planetary shaft comprising a square shaft and a carrier disc sleeved on the square shaft, a bearing being mounted in the middle of the carrier disc, the square shaft being fixed to the inner ring of the bearing, the clamping disc comprising a base plate, a top cover and a shift fork assembly, the base plate being conical in shape, the bottom diameter of the base plate being smaller than the top diameter, a conical paving groove being provided on the top surface of the base plate, an annular groove being provided on the inner wall of the base plate, a plurality of through grooves connecting to the annular groove being uniformly provided on the circumference of the base plate, the inclination angle of the through grooves being in the range of 15-24 degrees, a sleeve for clamping a tool being matched and provided in the through groove, and a plurality of notches being uniformly provided on the surface of the sleeve located in the annular groove;

[0008] The fork assembly includes a rotating disk, which is rotatably connected to the middle of the chassis. A plurality of paddles are evenly fixed on the circumference of the rotating disk. The paddles can drive the sleeve to rotate through the recess. The top cover is fixed to the chassis by screws. A square hole is provided in the middle of the rotating disk to match the square shaft. A clearance hole is provided at the position of the chassis and the top cover corresponding to the square hole.

[0009] Preferably, in order to facilitate stacking of the clamp plates, the bottom of the chassis has an annular extension portion, the surface of the top cover has an annular positioning groove, and the annular extension portion can be matched and arranged in the annular positioning groove.

[0010] Preferably, a plurality of notches are provided at the bottom end of the annular extension portion, and a cross protrusion is provided on the carrying plate, and the notch can be clamped in the cross protrusion.

[0011] By adopting the above technical solution, the bottommost fixture disc is placed on the carrier disc, and the carrier disc can well drive all the fixture discs to perform two-dimensional rotation.

[0012] Preferably, in order to increase the contact surface between the pick and the sleeve, the end of the pick is formed into a bevel and matched with the notch on the surface of the sleeve.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] 1. By setting the tool clamping sleeve at a certain angle and reducing the diameter of the chassis, the upper and lower clamping plates can partially overlap, reusing the space and increasing the clamping space, thereby increasing the loading capacity;

[0015] 2. The sleeve in the fixture disk contacts the paddles on the circumference of the rotating disk, which can drive the sleeve to rotate, thereby driving the handle-shaped tool to rotate so that the coating is uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0017] Figure 2 It is a schematic diagram of the exploded structure of the clamping plate in the embodiment of the present application.

[0018] Explanation of the accompanying drawings: 1. Planetary shaft; 11. Square shaft; 12. Carrying plate; 121. Cross protrusion; 2. Clamp plate; 21. Chassis; 211. Annular groove; 22. Top cover; 221. Annular positioning groove; 231. Rotating plate; 2311. Square hole; 232. Pick; 3. Sleeve; 31. Notch; 4. Annular extension; 41. Notch. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-2 This application is described in further detail.

[0020] The present application discloses an efficient clamping device for coating a shank-shaped tool. Figure 1-2 , including a planetary shaft 1 and a plurality of fixture disks 2 arranged on the planetary shaft 1, the planetary shaft 1 includes a square shaft 11 and a carrier disk 12 sleeved on the square shaft 11, a bearing is installed in the middle of the carrier disk 12, and the square shaft 11 is fixed to the inner ring of the bearing, the fixture disk 2 includes a chassis 21, a top cover 22 and a fork assembly, the chassis 21 is conical, and the diameter of the bottom of the chassis 21 is smaller than the diameter of the top, a conical give way groove is opened on the top surface of the chassis 21, and an annular groove 211 is opened on the inner wall of the chassis 21, and a plurality of through grooves connecting the annular groove 211 are evenly opened on the circumference of the chassis 21, and the inclination angle range of the through groove is 15-24 degrees. A sleeve 3 for clamping a tool is matched in the through groove, and a plurality of notches 31 are evenly opened on the surface of the sleeve 3 located in the annular groove 211;

[0021] The fork assembly includes a rotating disk 231, which is rotatably connected to the middle of the chassis 21. A plurality of paddles 232 are evenly fixed on the circumference of the rotating disk 231. The paddles 232 can drive the sleeve 3 to rotate through the recess 31. The top cover 22 is fixed to the chassis 21 by screws. A square hole 2311 is provided in the middle of the rotating disk 231 to match the square shaft 11. A clearance hole is provided at the position of the chassis 21 and the top cover 22 corresponding to the square hole 2311. The end of the paddle 232 is provided with a bevel to match the recess 31 on the surface of the sleeve 3.

[0022] Specifically, four paddles are provided, which increases the proportion of the tool's rotation time in a single-dimensional rotation cycle and increases the uniformity of the tool coating thickness.

[0023] Reference Figure 1-2 In order to facilitate stacking of the clamp plates 2 , the bottom of the chassis 21 has an annular extension portion 4 , and the surface of the top cover 22 has an annular positioning groove 221 , and the annular extension portion 4 can be matched and set in the annular positioning groove 221 .

[0024] The bottom end of the annular extension portion 4 is provided with a plurality of notches 41 , and the carrier plate 12 has a cross protrusion 121 , into which the notches 31 can be clamped, so that the bottom clamp plate 2 can be limited on the carrier plate 12 for two-dimensional rotation.

[0025] The implementation principle of the high-efficiency clamping device for shank-shaped tool coating in the embodiment of the present application is as follows:

[0026] During use, the staff inserts the shank-shaped tool into the sleeve 3 in sequence, and stacks the clamping disc 2 on the planetary shaft 1 layer by layer. The square shaft 11 passes through the square hole 2311 in the rotating disc 231. When the carrier disc 12 drives the clamping disc 2 to rotate, the sleeve 3 in the clamping disc 2 contacts the paddle 232 on the side of the rotating disc 231, which can drive the sleeve 3 to rotate, thereby driving the shank-shaped tool to rotate, so that the subsequent coating is uniform.

[0027] By setting the sleeve 3 for clamping the tool to be inclined at a certain angle, the diameter of the chassis 21 is reduced, so that the upper and lower clamping plates partially overlap, the space is reused, the clamping space is increased, and the loading capacity can be increased.

[0028] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An efficient clamping device for coating a shank-shaped tool, comprising a planetary shaft (1) and a plurality of clamping discs (2) arranged on the planetary shaft (1), characterized in that: The planetary shaft (1) includes a square shaft (11) and a carrier plate (12) sleeved on the square shaft (11), a bearing is installed in the middle of the carrier plate (12), and the square shaft (11) is fixed to the inner ring of the bearing. The clamp plate (2) includes a chassis (21), a top cover (22) and a fork assembly. The chassis (21) is conical, and the diameter of the bottom of the chassis (21) is smaller than the diameter of the top. A conical clearance groove is provided on the top surface of the chassis (21), and an annular groove (211) is provided on the inner wall of the chassis (21). A plurality of through grooves connected to the annular groove (211) are evenly provided on the circumference of the chassis (21), and the inclination angle range of the through groove is 15-24 degrees. A sleeve (3) for clamping a tool is matched in the through groove, and a plurality of notches (31) are evenly provided on the surface of the sleeve (3) located in the annular groove (211). The shift fork assembly comprises a rotating disk (231), the rotating disk (231) being rotatably connected to the middle of the chassis (21), a plurality of paddles (232) being evenly fixed on the circumference of the rotating disk (231), the paddles (232) being capable of driving the sleeve (3) to rotate via the recess (31), the top cover (22) being fixed to the chassis (21) by screws, the rotating disk (231) having a square hole (2311) in the middle thereof being adapted to the square shaft (11), and clearance holes being provided at positions of the chassis (21) and the top cover (22) corresponding to the square hole (2311).

2. The efficient clamping device for coating shank-shaped cutting tools according to claim 1, characterized in that: The bottom of the chassis (21) has an annular extension portion (4), the surface of the top cover (22) has an annular positioning groove (221), and the annular extension portion (4) can be matched and arranged in the annular positioning groove (221).

3. The high-efficiency clamping device for coating shank-shaped cutting tools according to claim 2, characterized in that: The bottom end of the annular extension portion (4) is provided with a plurality of notches (41), the supporting plate (12) is provided with a cross protrusion (121), and the recess (31) can be clamped in the cross protrusion (121).

4. The high-efficiency clamping device for coating shank-shaped cutting tools according to claim 1, characterized in that: The end of the pick (232) is formed into an inclined surface and is adapted to fit the notch (31) on the surface of the sleeve (3).

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