Cycloid asymmetric clamping multi-piece gear grinding tool

Abstract

The utility model discloses a cycloid asymmetrical clamping multi-piece gear grinding tool, and relates to the technical field of cycloid gear machining, the cycloid asymmetrical clamping multi-piece gear grinding tool comprises a tool base, a first cycloid gear, a second cycloid gear and a tool cover, and is characterized in that a first positioning column and a second positioning column are arranged on the tool base; the first cycloid gear and the second cycloid gear are provided with a plurality of positioning holes, and the first positioning column and the second positioning column can be inserted into the positioning holes. A marking hole is formed in the position, close to one of the positioning holes, of the first cycloid gear and the second cycloid gear, the positioning hole, with the marking hole, of the first cycloid gear is formed in the first positioning column, and the positioning hole, with the marking hole, of the second cycloid gear is formed in the second positioning column. The first cycloid gear and the second cycloid gear are provided with a plurality of receding holes, the first positioning column and the second positioning column can be inserted into the receding holes, a set of cycloid gears can be attached together to be machined through positioning and fixing of the positioning holes and the receding holes, and errors are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of cycloid gear processing, and in particular to a cycloid asymmetric clamping multi-piece gear grinding tool. Background Art

[0002] Cycloid gears are commonly used in RV reducers. Since cycloid gears are used in a group of two in an RV reducer, and the two cycloid gears usually need to be installed 180° apart during installation; at the same time, cycloid gears generally require special fixtures to fix them during processing.

[0003] Regarding the above-mentioned related technologies, the existing special fixture fixes a group of cycloid gears separately by using a transition plate. However, the use of the transition plate has some defects. The transition plate will separate the two cycloid gears by a certain distance, which may produce a certain taper when processing the tooth shape, causing processing errors. Utility Model Content

[0004] The purpose of this application is to provide a cycloid asymmetric clamping multi-piece gear grinding tool to improve the problem of errors that may occur in cycloid gear processing.

[0005] The present application provides a cycloid asymmetric clamping multi-piece gear grinding tooling using the following technical solutions:

[0006] A cycloid asymmetric clamping multi-piece grinding tool includes a tool base, a cycloid gear 1 and a cycloid gear 2 installed on the tool base, and a tool cover, wherein the tool base is provided with a positioning column 1 and a positioning column 2, and the cycloid gear 1 and the cycloid gear 2 are provided with a plurality of positioning holes, and the positioning column 1 and the positioning column 2 can be inserted into the positioning holes; a marking hole is provided on the outside of one of the positioning holes of the cycloid gear 1 and the cycloid gear 2, and the positioning hole of the cycloid gear 1 with the marking hole is provided on the positioning column 1, and the positioning hole of the cycloid gear 2 close to the marking hole is provided on the positioning column 2; the cycloid gear 1 and the cycloid gear 2 are provided with a plurality of avoidance holes, and the positioning column 1 and the positioning column 2 can be inserted into the avoidance holes; the tool cover is provided on the side of the cycloid gear 1 and the cycloid gear 2 away from the tool base.

[0007] By adopting the above technical solution, a positioning column 1 and a positioning column 2 are provided on the tooling base, and a positioning hole is provided on the cycloid gear 1 and the cycloid gear 2, and a marking hole is provided on the cycloid gear 1 and the cycloid gear 2 near one of the positioning holes. At this time, the positioning column 1 is inserted into the positioning hole with the marking hole of the cycloid gear 1, and the positioning column 2 is inserted into the positioning hole with the marking hole of the cycloid gear 2. The positioning column 1 and the positioning column 2 can make the cycloid gear 1 and the cycloid gear 2 staggered at a specific angle, and no longer need to be staggered 180 degrees. Make the tooth profiles overlap; at the same time, a number of avoidance holes are provided on the cycloid gear 1 and the cycloid gear 2. When the positioning column 1 and the positioning column 2 are inserted into the positioning holes, the corresponding avoidance holes are also inserted to achieve the cycloid gear 1 and the cycloid gear 2 being fitted on the tooling base. The fitting installation can reduce the processing error and can be installed in multiple layers, thereby improving the processing efficiency; the tooling cover is used to fit the cycloid gear and is installed on the processing machine tool at the same time. The cycloid gear installed on the tooling base is pressed by the tooling cover to fix the cycloid gear.

[0008] Preferably, the ends of the first and second positioning columns away from the tooling base are both provided with guide chamfers.

[0009] By adopting the above technical solution, a guide chamfer is provided at the end of the positioning column away from the tooling base, and it is relatively easier to install the cycloid gear 1 and the cycloid gear 2 along the guide chamfer, thereby improving the installation efficiency.

[0010] Preferably, a diamond-shaped pin is provided on the tooling base, and the diamond-shaped pin can be inserted into the positioning hole and the avoidance hole.

[0011] By adopting the above technical solution, diamond pins are set to be inserted into the positioning holes and the avoidance holes to further limit the displacement of the cycloid gear 1 and the cycloid gear 2, so that the cycloid gear 1 and the cycloid gear 2 are fixed more stably; the diamond pins are used to reserve a certain buffer margin to avoid excessive positioning, which may cause cracking and damage of the cycloid gear 1 and the cycloid gear 2 during the processing process.

[0012] Preferably, an installation chamfer is provided on one end of the diamond pin away from the tooling base.

[0013] By adopting the above technical solution, the installation of the positioning hole and the avoidance hole is facilitated by utilizing the installation chamfer, thereby improving the installation efficiency of the cycloid gear 1 and the cycloid gear 2.

[0014] Preferably, a mounting groove is provided on one side of the tooling base that is in contact with the cycloid gear 1 and the cycloid gear 2, and a magnetic part is provided in the mounting groove.

[0015] By adopting the above technical solution, a mounting groove is provided on the tooling base, and a magnetic part is installed in the mounting groove. The magnetic force of the magnetic part is utilized to adsorb the cycloid gear 1 and the cycloid gear 2 installed on the tooling base, so that the cycloid gear 1 and the cycloid gear 2 are fixed more stably.

[0016] Preferably, a soft rubber pad is provided on one side of the tooling cover close to the tooling base.

[0017] By adopting the above technical solution, the friction loss between the tooling cover and the cycloid gear 1 or the cycloid gear 2 is reduced by using the soft rubber pad, thereby increasing the service life of the tooling cover and the cycloid gear.

[0018] Preferably, a fixing protrusion is provided on one side of the soft rubber pad that is in contact with the tool cover, and a fixing groove is provided on the tool cover corresponding to the fixing protrusion, and the fixing protrusion can be inserted into the fixing groove.

[0019] By adopting the above technical solution, the soft rubber pad is installed by using the cooperation between the embedding groove and the embedding protrusion, which facilitates the installation and removal of the soft rubber pad.

[0020] Preferably, the inner side wall of the tooling cover is provided with a plurality of reinforcing ribs.

[0021] By adopting the above technical solution, reinforcing ribs are provided on the inner side wall of the tooling cover to improve the load-bearing capacity of the tooling cover and prevent the tooling cover from being deformed by force during the processing, thereby affecting the processing accuracy of the cycloid gear 1 and the cycloid gear 2.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By setting positioning columns 1 and 2 on the tooling base to position cycloid gear 1 and cycloid gear 2, cycloid gear 1 and cycloid gear 2 can be stacked together at a specific angle, and the tooth profiles can overlap, so there is no need to use a transition plate for installation. Cycloid gear 1 and cycloid gear 2 can be closely attached together, improving the consistency of tooth profile size. They can also be stacked in multiple layers, increasing the number of clamping and improving efficiency.

[0024] 2. Several diamond pins are provided on the tooling base. The diamond pins are inserted into the remaining positioning holes and avoidance holes of the cycloid gear 1 and the cycloid gear 2 to further position and fix the cycloid gear 1 and the cycloid gear 2. At the same time, the diamond pins can prevent the cycloid gear 1 and the cycloid gear 2 from being damaged due to excessive positioning.

[0025] 3. On the side of the tooling cover close to the tooling base, a soft rubber pad is installed through the cooperation of the embedding protrusion and the embedding groove to reduce the friction loss between the tooling cover and the cycloid gear 1 or cycloid gear 2 when the tooling cover is pressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a schematic diagram of the overall structure of a cycloid asymmetric clamping multi-piece gear grinding tooling of the present application.

[0027] Figure 2 It is a cross-sectional schematic diagram for showing the internal structure of the tooling base in the embodiment.

[0028] Figure 3 Schematic diagram of the overall structure of the cycloid gear 1 in the embodiment.

[0029] Figure 4 It is a partial structural diagram of the cycloid gear 2 in the embodiment.

[0030] In the figure, 1. tooling base; 11. Positioning column 1; 111. Guide chamfer; 12. Positioning column 2; 13. Diamond pin; 131. Mounting chamfer; 14. Mounting slot; 141. Magnetic part; 2. Cycloid gear 1; 21. Positioning hole; 22. Marking hole; 23. Avoidance hole; 3. Cycloid gear 2; 4. Tooling cover; 41. Soft rubber pad; 411. Embedding protrusion; 42. Embedding slot; 43. Reinforcing rib. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0032] A cycloid asymmetric clamping multi-piece gear grinding tool, refer to Figure 1 and Figure 2, including a tooling base 1, a cycloid gear 1 2, a cycloid gear 2 3, and a tooling cover 4. A positioning column 1 11 and a positioning column 2 12 are provided on the tooling base 1. The positioning column 11 and the positioning column 2 12 are placed at a specific angle. Correspondingly, three positioning holes 21 are provided on the cycloid gear 1 2 and the cycloid gear 2 3. The positioning column 1 11 and the positioning column 2 12 can be inserted into the positioning holes 21; a marking hole 22 is provided on the side of one of the positioning holes 21 of the cycloid gear 1 2 and the cycloid gear 2 3. At this time, the positioning hole 21 of the cycloid gear 1 2 with the marking hole 22 is matched with the positioning column 11, and the positioning hole 21 of the cycloid gear 2 3 with the marking hole 22 is matched with the positioning column 2 12, and the cycloid gear 1 2 and the cycloid gear 2 can be connected. The two 3 are staggered and stacked together at a specific angle, and the tooth profiles can still overlap; at the same time, two avoidance holes 23 are provided between every two positioning holes 21 on the cycloid gear 1 2 and the cycloid gear 2 3, with a total of six avoidance holes 23. When the cycloid gear 1 2 and the cycloid gear 2 3 are staggered and stacked, the positioning column 1 11 and the positioning column 2 12 can also be inserted into the avoidance holes 23 at the same time; at the same time, since the cycloid gear 1 2 and the cycloid gear 2 3 are placed close together, this clamping does not involve interference, and an additional layer of cycloid gear 1 2 and cycloid gear 2 3 can be stacked and installed, thereby effectively improving the processing efficiency; when the tooling is installed on the processing machine tool (not shown in the figure), the tailstock on the machine tool drives the tooling cover 4 to press on the cycloid gear 1 2 and the cycloid gear 2 3 for fixation.

[0033] Reference Figure 3 and Figure 4 Two diamond pins 13 are provided on the tooling base 1, and the diamond pins 13 can be inserted into the positioning holes 21 or the avoidance holes 23. The diamond pins 13 are used to further fix the cycloid gear 1 2 and the cycloid gear 2 3, thereby making the installation of the cycloid gear 1 2 and the cycloid gear 2 3 more stable, reducing its displacement during the processing, and making the processing more accurate; the diamond pins 13 are used to reduce the limitation of the position degree, leaving a certain buffer margin, and avoiding excessive positioning and causing the cycloid gear 1 2 and the cycloid gear 2 3 to crack and damage; and an installation chamfer 131 is provided on the side of the diamond pin 13 away from the tooling base 1, which can facilitate the installation of the positioning hole 21 and the avoidance hole 23, and at the same time, a guide chamfer 111 is provided on the side of the positioning column 11 and the positioning column 2 12 away from the tooling base 1, which can also facilitate the installation of the positioning hole 21, thereby improving the installation efficiency of the cycloid gear 1 2 and the cycloid gear 2 3.

[0034] Reference Figure 2 A mounting groove 14 is provided on one side of the tooling base 1 that is in contact with the cycloid gear 1 2 or the cycloid gear 2 3. At the same time, a magnetic part 141 is installed in the mounting groove 14. The magnetic part 141 is a magnet. The magnetic force of the magnetic part 141 is used to adsorb the cycloid gear 1 2 and the cycloid gear 2 3 installed on the tooling base 1, so that the fixation of the cycloid gear 1 2 and the cycloid gear 2 3 is more stable, and the installation speed can also be relatively improved.

[0035] Reference Figure 2 A soft rubber pad 41 is installed on the side of the tooling cover 4 close to the tooling base 1. The soft rubber pad 41 is made of rubber and is provided with an embedding protrusion 411. The tooling cover 4 is correspondingly provided with an embedding groove 42. The soft rubber pad 41 is installed on the tooling cover 4 through the embedding protrusion 411 and the embedding groove 42, which can facilitate the installation and removal of the soft rubber pad 41; the soft rubber pad 41 can reduce the friction loss between the tooling cover 4 and the cycloid gear 1 2 and the cycloid gear 2 3; at the same time, since the tooling cover 4 will be subjected to greater pressure on the processing machine tool, four reinforcing ribs 43 are provided in the tooling cover 4 to prevent the tooling cover 4 from being deformed by the force, thereby affecting the processing accuracy.

[0036] The implementation principle of the embodiment of this application is:

[0037] A positioning column 11 and a positioning column 2 12 are provided on the tooling base 1, and three positioning holes 21 and six avoidance holes 23 are provided on the cycloid gear 1 2 and the cycloid gear 2 3, and a marking hole 22 is provided on the outside of one of the positioning holes 21. At this time, the positioning hole 21 of the cycloid gear 1 2 with the marking hole 22 is installed corresponding to the positioning column 11, and the positioning hole 21 of the cycloid gear 2 3 with the marking hole 22 is installed corresponding to the positioning column 2 12. The cycloid gear 1 2 and the cycloid gear 2 3 can be staggered at a certain angle and stacked together, and the tooth profiles can be aligned. At the same time, due to the fitting installation, spare space can be saved, and a cycloid gear 1 2 and a cycloid gear 2 3 can be installed separately, thereby improving the processing efficiency.

[0038] Two diamond pins 13 are provided on the tooling base 1 and are inserted into the positioning hole 21 and the avoidance hole 23, so that the installation of the cycloid gear 1 2 and the cycloid gear 2 3 is more stable. The use of the diamond pins 13 can avoid excessive positioning, which may cause the cycloid gear 1 2 and the cycloid gear 2 3 to crack and damage during the processing; at the same time, the diamond pins 13 and the positioning column 1 11 and the positioning column 2 12 are respectively provided with an installation chamfer 131 and a guide chamfer 111, so that the installation of the cycloid gear 1 2 and the cycloid gear 2 3 is easier and the installation efficiency is improved.

[0039] A soft rubber pad 41 is installed on the side of the tooling cover 4 close to the tooling base 1 through embedding and locking. The soft rubber pad 41 is used to reduce the friction between the tooling cover 4 and the cycloid gear 1 2 and cycloid gear 2 3, thereby avoiding damage to the tooling cover 4 or the cycloid gear 1 2 and cycloid gear 2 3; at the same time, four reinforcing ribs 43 are provided on the inner side wall of the tooling cover 4 to improve the load-bearing capacity of the tooling cover 4 and avoid it from being deformed by force on the processing machine tool and affecting the processing accuracy.

[0040] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A cycloid asymmetric clamping multi-piece gear grinding tool, comprising a tool base (1), a cycloid gear 1 (2) and a cycloid gear 2 (3) mounted on the tool base (1), and a tool cover (4), characterized in that: The tooling base (1) is provided with a positioning column 1 (11) and a positioning column 2 (12); the cycloid gear 1 (2) and the cycloid gear 2 (3) are provided with a plurality of positioning holes (21); the positioning column 1 (11) and the positioning column 2 (12) can be inserted into the positioning holes (21); a marking hole (22) is provided on the outer side of one of the positioning holes (21) of the cycloid gear 1 (2) and the cycloid gear 2 (3); the positioning hole of the cycloid gear 1 (2) with the marking hole (22) (21) is arranged on the positioning column one (11), and the positioning hole (21) of the cycloid gear two (3) having a marking hole (22) is arranged on the positioning column two (12); the cycloid gear one (2) and the cycloid gear two (3) are provided with a plurality of avoidance holes (23), and the positioning column one (11) and the positioning column two (12) can be inserted into the avoidance holes (23); the tooling cover (4) is arranged on the side of the cycloid gear one (2) and the cycloid gear two (3) away from the tooling base (1).

2. The cycloid asymmetric clamping multi-piece gear grinding tool according to claim 1, characterized in that: The ends of the positioning column 1 (11) and the positioning column 2 (12) away from the tooling base (1) are both provided with guide chamfers (111).

3. The cycloid asymmetric clamping multi-piece gear grinding tool according to claim 1, characterized in that: A diamond pin (13) is provided on the tooling base (1), and the diamond pin (13) can be inserted into the positioning hole (21) and the avoidance hole (23).

4. The cycloid asymmetric clamping multi-piece gear grinding tool according to claim 3, characterized in that: An end of the diamond-shaped pin (13) away from the tooling base (1) is provided with a mounting chamfer (131).

5. The cycloid asymmetric clamping multi-piece gear grinding tool according to claim 1, characterized in that: A mounting groove (14) is provided on one side of the tooling base (1) that is in contact with the cycloid gear 1 (2) and the cycloid gear 2 (3), and a magnetic part (141) is provided in the mounting groove (14).

6. The cycloid asymmetric clamping multi-piece gear grinding tool according to claim 1, characterized in that: A soft rubber pad (41) is provided on one side of the tool cover (4) close to the tool base (1).

7. The cycloid asymmetric clamping multi-piece gear grinding tool according to claim 6, characterized in that: A fixing protrusion (411) is provided on one side of the soft rubber pad (41) that is in contact with the tool cover (4), and a fixing groove (42) is provided on the tool cover (4) corresponding to the fixing protrusion (411), and the fixing protrusion (411) can be inserted into the fixing groove (42).

8. The cycloid asymmetric clamping multi-piece gear grinding tool according to claim 1, characterized in that: The inner side wall of the tooling cover (4) is provided with a plurality of reinforcing ribs (43).

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