An intermediate shaft plate gear single key tooth marking device

Abstract

The utility model relates to gear assembly technical field, concretely relates to a kind of middle shaft piece gear single key tooth marking equipment, including marking machine, workstation, piece gear positioning block and intermediate shaft cooperation key;The positioning of piece gear on workstation is realized by marking machine cooperation gear positioning block, subsequently by the keyway cooperation of intermediate shaft cooperation key and piece gear, the tooth that needs to be marked on piece gear is determined, so as to utilize marking machine to move along the radial direction of piece gear positioning block, it can be directly moved to the top of corresponding tooth and mark;It is more convenient to operate, can more quickly and accurately determine the tooth that needs to be marked simultaneously, to improve marking efficiency, reduce marking position error prediction marking unclear problem, further can avoid the problem that tooth is damaged due to marking position inaccuracy, ensure the structure of piece gear reliable, simple structure low in cost, satisfy actual marking demand.

Description

Technical Field

[0001] This utility model relates to the field of gear assembly technology, specifically to a single-key tooth marking device for intermediate shaft gears. Background Technology

[0002] During gearbox assembly, crescent keys, long keys, and interference fits on the outer diameter of the intermediate shaft are commonly used to connect and transmit the gear when pressing the inner hole of the gear plate onto the outer diameter of the intermediate shaft. To facilitate fixing the 1st tooth corresponding to the single key when pressing the intermediate shaft gear plate, the designer requires that the 1st tooth corresponding to the single key be marked with "0".

[0003] Currently, marking of intermediate gear teeth is usually done manually, where the operator aligns the letterhead with the desired marking position and taps the end of the letterhead to manually mark the teeth. This method has problems such as low marking efficiency, unclear marking, incorrect marking position, and damage caused by marking too close to the teeth.

[0004] Automatic marking equipment also exists. For example, Chinese invention patent application CN116038134A provides a gear shaft tooth alignment marking machine and marking method, which can directly mark the gear shaft system after tooth alignment, avoiding the problem of misaligned teeth due to unintentional errors by workers when marking before tooth alignment. However, its structure is complex and costly, increasing the difficulty and cumbersomeness of operation, and therefore cannot meet the actual needs of use. Utility Model Content

[0005] The purpose of this invention is to provide a single-key tooth alignment marking device for intermediate shaft gears, thereby solving the current technical problem of cumbersome single-key tooth alignment marking for intermediate shaft gears.

[0006] The solution of this utility model to the above-mentioned technical problems is as follows:

[0007] A marking device for single-key gear alignment on intermediate shaft plate gears includes a marking machine, a worktable, a plate gear positioning block, and an intermediate shaft mating key;

[0008] The gear positioning block is set on the worktable, the intermediate shaft mating key mates with the gear positioning block, and the marking machine is set along the radial direction of the gear positioning block, with the marking machine located above the gear positioning block.

[0009] Furthermore, the marking machine is positioned along the horizontal symmetrical axis of the intermediate shaft mating key.

[0010] Further specified, the gear positioning block includes a positioning connector, a positioning mandrel, and a positioning bushing;

[0011] The positioning mandrel is connected to the worktable via a positioning connector. The positioning bushing is sleeved on the outside of the positioning mandrel. The positioning mandrel and the positioning bushing are coaxially arranged. One end of the intermediate shaft mating key is located on the outside of the positioning bushing, and the other end of the intermediate shaft mating key is connected to the positioning bushing along the radial direction of the positioning bushing.

[0012] Further specifying, the positioning mandrel has a stepped connecting hole inside, one end of the positioning connector is engaged with the stepped connecting hole, and the other end of the positioning connector extends to the bottom of the positioning mandrel and is detachably connected to the worktable.

[0013] Furthermore, the other end of the positioning connector is threadedly connected to the worktable.

[0014] Further specified, the positioning mandrel is provided with a first mating groove, which is arranged along the axis of the positioning mandrel; the positioning bushing is provided with a second mating groove, which is arranged along the axis of the positioning bushing; the first mating groove and the second mating groove are directly opposite each other; and both the first mating groove and the second mating groove are connected to the other end of the intermediate shaft mating key.

[0015] Furthermore, the second mating groove is located above the first mating groove.

[0016] Further specifying, the intermediate shaft mating key is connected to the positioning bushing via a first connector, one end of the first connector passes through the intermediate shaft mating key and is connected to the positioning bushing, and the other end of the first connector is located inside the intermediate shaft mating key.

[0017] Further specified, the positioning mandrel is connected to the positioning bushing via a second connector, one end of the second connector passes through the positioning bushing and is connected to the positioning mandrel, and the other end of the second connector is located inside the positioning bushing.

[0018] Furthermore, the marking machine is mounted on the worktable via support columns.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. This utility model uses a marking machine in conjunction with a gear positioning block to position the gear on the worktable. Then, by using an intermediate shaft with a key that engages with the keyway on the gear, the teeth on the gear to be marked are determined. The marking machine can then move radially along the gear positioning block to directly position itself above the corresponding teeth for marking. This makes operation more convenient and allows for faster and more accurate identification of the teeth to be marked, thereby improving marking efficiency, reducing the risk of incorrect marking positions and unclear markings, and further preventing damage to the teeth due to inaccurate marking positions. It ensures the reliability of the gear structure, is simple in design, low in cost, and meets practical marking needs.

[0021] 2. The positioning mandrel, positioning bushing, and intermediate shaft mating key of this utility model are assembled by disassembly and connection. The positioning bushing with the corresponding outer diameter and the intermediate shaft mating key with the corresponding thickness can be replaced according to the actual specifications of the gear, thereby meeting the single key tooth marking requirements of gears with different inner diameters on the intermediate shaft. It has stronger applicability and further meets different usage requirements. Attached Figure Description

[0022] Figure 1 This is a structural diagram of the single-key gear marking device for intermediate shaft plates of this utility model;

[0023] Figure 2 This is a cross-sectional view of the gear positioning block of this utility model;

[0024] Figure 3 This is a structural diagram of the positioning mandrel of this utility model;

[0025] Figure 4 This is a structural diagram of the positioning bushing of this utility model;

[0026] Figure 5 This is a structural diagram of the intermediate shaft mating key of this utility model;

[0027] In the diagram, 10-marking machine; 11-support column; 20-worktable; 30-gear positioning block; 31-positioning connector; 32-positioning mandrel; 33-positioning bushing; 34-stepped connecting hole; 35-first mating groove; 36-second mating groove; 37-second connector; 40-intermediate shaft mating key; 41-first connector; 50-gear. Detailed Implementation

[0028] 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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.

[0032] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not 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 on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Example 1

[0034] refer to Figure 1 This utility model provides a single-key tooth marking device for intermediate shaft plate gears, including a marking machine 10, a worktable 20, a plate gear positioning block 30, and an intermediate shaft mating key 40.

[0035] The marking machine 10 is connected to the worktable 20 via a support column 11. The worktable 20 is horizontally set up to hold the gears 50 that need to be marked. The support column 11 is vertically set up and connected to the marking machine 10, which facilitates the adjustment of the height of the marking machine 10 to meet the marking requirements of gears 50 of different thicknesses. The marking head of the marking machine 10 can move horizontally on its plane and can also move up and down to perform marking operations. The marking head is located above the worktable 20.

[0036] The gear positioning block 30 is installed on the worktable 20 to replace the intermediate shaft and mate with the inner ring of the gear 50. In actual operation, the operator selects the gear positioning block 30 of the corresponding size so that the gear 50 to be marked is fitted on the outside of the gear positioning block 30. This is used to position the gear 50 and prevent it from moving on the worktable 20. This avoids problems such as incorrect marking position, unclear marking, and damage to the teeth caused by positional shift during the marking process.

[0037] The gear positioning block 30 is preferably movably connected to the worktable 20 for easy disassembly and assembly, and convenient operation.

[0038] To further explain, in order to further prevent the disc gear 50 from deflecting during the marking process and causing marking failure, an intermediate shaft mating key 40 is provided on the disc gear positioning block 30. The intermediate shaft mating key 40 is used to connect the disc gear 50 to be marked and the disc gear positioning block 30, limit the rotation of the disc gear 50, ensure the stability and reliability of the disc gear 50 during the marking process, and ensure the marking quality.

[0039] Meanwhile, since the teeth to be marked on the gear 50 correspond to the single key on the intermediate shaft, the teeth corresponding to the key 40 on the intermediate shaft are the teeth to be marked. During initial operation, the marking machine 10 can be moved to perform the marking operation.

[0040] To improve the reliability of the fit between the gear 50 and the gear positioning block 30, the cross-section of the gear positioning block 30 is the same as the inner ring cross-section of the gear 50, that is, the same cross-sectional shape as the installation position of the gear 50 on the intermediate shaft. Taking a circular cross-section as an example, the outer diameter of the gear positioning block 30 matches the inner diameter of the gear 50. At this time, the intermediate shaft mating key 40 is connected to the worktable 20 through the gear positioning block 30, ensuring the stability of the intermediate shaft mating key 40 relative to the worktable 20 and preventing the intermediate shaft mating key 40 from shifting position. This ensures that when the same gear 50 is being marked, the position of the teeth to be marked is the same on the worktable 20. Thus, the marking machine 10 performs the marking operation by moving up and down, further improving the marking efficiency and meeting the actual marking requirements.

[0041] To further improve the marking efficiency of different specifications of gear 50, it is preferable that the marking machine 10 moves in the horizontal direction along the radial direction of the gear positioning block 30; it is even preferable that the marking machine 10 moves in the horizontal direction through the center of the gear positioning block 30 and the axis of symmetry of the intermediate shaft mating key 40 in the horizontal direction, thereby optimizing the horizontal movement path of the marking machine 10, shortening the movement distance of the marking machine 10, improving the marking efficiency, and further improving the marking quality.

[0042] For gears 50 of different specifications and sizes, the distance between the tooth to be marked and the center of the gear positioning block 30 is different during the marking process. Therefore, by adjusting the distance between the marking machine 10 and the center of the gear positioning block 30 in one direction, the marking operation can be completed efficiently, quickly and with high quality, further meeting the actual needs for efficient and high-quality marking.

[0043] Example 2

[0044] refer to Figures 3-5 Based on Embodiment 1, the intermediate shaft gear single key tooth marking device provided in this embodiment includes a gear positioning block 30 comprising a positioning connector 31, a positioning mandrel 32, and a positioning bushing 33.

[0045] Among them, reference Figure 2 and Figure 3 The positioning bushing 33 is sleeved on the outside of the positioning spindle 32. The positioning spindle 32 is stably connected to the worktable 20 through the positioning connector 31. The positioning bushing 33 is movably connected to the positioning spindle 32 for easy disassembly and assembly, and is used to meet the connection of different specifications of the disc gears 50.

[0046] The positioning spindle 32 is stably connected to the worktable 20 through the positioning connector 31. The positioning connector 31 can be a stud set at the bottom of the positioning spindle 32 and threadedly connected to the worktable 20. In order to prevent the positioning spindle 32 from deflecting during the marking process, the positioning connector 31 can be selected as a positioning block, and a positioning groove is opened on the worktable 20 to lock the positioning spindle 32. Taking the step connection hole 34 opened on the positioning spindle 32 as an example, the step connection hole 34 is coaxial with the positioning spindle 32, and the positioning connector 31 is selected as a bolt.

[0047] Specifically, the inner diameter of the first stepped hole of the stepped connecting hole 34 is larger than the inner diameter of the second stepped hole. The first stepped hole is located above the second stepped hole. The first stepped hole and the second stepped hole are coaxially arranged. The top end of the positioning connector 31 mates with the first stepped hole, and the bottom end of the positioning connector 31 extends through the second stepped hole to connect with the worktable 20. The threaded connection is used as an example for explanation. The positioning connector 31 can be an internal hex bolt.

[0048] For further explanation, please refer to Figure 4 The outer diameter of the positioning bushing 33 matches the inner diameter of the gear 50, preferably the deviation between the inner diameter of the gear 50 and the outer diameter of the arm positioning bushing 33 does not exceed 0.1mm.

[0049] To prevent the intermediate shaft mating key 40 from shifting relative to the positioning bushing 33 and the worktable 20, it is preferable that the intermediate shaft mating key 40 is connected to both the positioning bushing 33 and the positioning spindle 32; the intermediate shaft mating key 40 is arranged along the radial direction of the positioning bushing 33.

[0050] Specifically, one end of the intermediate shaft mating key 40 is located outside the positioning bushing 33 and is used to mate with the keyway on the gear 50. The other end of the intermediate shaft mating key 40 extends along the radial direction of the positioning bushing 33 and engages with the positioning mandrel 32 and the positioning bushing 33.

[0051] At this point, it is preferable to open a second mating groove 36 on the positioning bushing 33 and open a first mating groove 35 on the positioning spindle 32. The first mating groove 35 and the second mating groove 36 are directly opposite each other. The second mating groove 36 is selected to be located above the first mating groove 35. The other end of the intermediate shaft mating key 40 extends into the interior of both the first mating groove 35 and the second mating groove 36. The first mating groove 35 limits the intermediate shaft mating key 40, and the intermediate shaft mating key 40 limits the positioning bushing 33, ensuring that the gear positioning block 30 is stable and reliable during use.

[0052] The positioning mandrel 32 and the positioning bushing 33 can be configured as a prism structure, such as a triangular prism structure, and the positioning mandrel 32 and the positioning bushing 33 can be further engaged and limited to ensure reliable connection. Alternatively, the positioning mandrel 32 and the positioning bushing 33 can be configured as a cylinder structure for easy processing.

[0053] Preferably, in order to facilitate the alignment of the first mating groove 35 and the second mating groove 36, a first positioning hole is preferably opened on the positioning mandrel 32 and a second positioning hole is opened on the positioning bushing 33. The first positioning hole is set along the horizontal axis of the first mating groove 35 and the second positioning hole is set along the horizontal axis of the second mating groove 36. A second connecting piece 37 is selected to connect the positioning bushing 33 and the positioning mandrel 32.

[0054] At this time, one end of the second connector 37 extends through the positioning bushing 33 along the second positioning hole to the first positioning hole, so that one end of the second connector 37 is connected to the positioning spindle 32, and the other end of the second connector 37 is set along the second positioning hole. The other end of the second connector 37 is located in the second positioning hole, so as to avoid the end of the second connector 37 being located outside the positioning bushing 33 and affecting the stable engagement with the gear 50.

[0055] For further explanation, please refer to Figure 5 To ensure the stability and reliability of the intermediate shaft mating key 40 connection, it is preferable that the intermediate shaft mating key 40 is connected to the positioning bushing 33 through the first connecting piece 41.

[0056] One end of the first connecting piece 41 passes through the intermediate shaft mating key 40 and connects to the positioning bushing 33, while the other end of the first connecting piece 41 is located inside the intermediate shaft mating key 40; this also ensures that the engagement between the gear 50 and the positioning bushing 33 is reliable.

[0057] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this utility model.

Claims

1. A single-key tooth marking device for intermediate shaft gears, characterized in that, It includes a marking machine (10), a worktable (20), a gear positioning block (30), and an intermediate shaft mating key (40); The gear positioning block (30) is set on the worktable (20), the intermediate shaft mating key (40) is mated with the gear positioning block (30), the marking machine (10) is set along the radial direction of the gear positioning block (30), and the marking machine (10) is located above the gear positioning block (30).

2. The intermediate shaft gear single-key tooth marking device according to claim 1, characterized in that, The marking machine (10) is set along the horizontal symmetrical axis of the intermediate shaft mating key (40).

3. The intermediate shaft gear single-key tooth marking device according to claim 1 or 2, characterized in that, The gear positioning block (30) includes a positioning connector (31), a positioning spindle (32), and a positioning bushing (33). The positioning mandrel (32) is connected to the worktable (20) through the positioning connector (31). The positioning bushing (33) is sleeved on the outside of the positioning mandrel (32). The positioning mandrel (32) and the positioning bushing (33) are coaxially arranged. One end of the intermediate shaft mating key (40) is located on the outside of the positioning bushing (33), and the other end of the intermediate shaft mating key (40) is connected to the positioning bushing (33) along the radial direction of the positioning bushing (33).

4. The intermediate shaft gear single-key tooth marking device according to claim 3, characterized in that, The positioning mandrel (32) has a stepped connection hole (34) inside. One end of the positioning connector (31) is engaged with the stepped connection hole (34), and the other end of the positioning connector (31) extends to the bottom of the positioning mandrel (32) and is detached from the worktable (20).

5. The intermediate shaft gear single-key tooth marking device according to claim 3, characterized in that, The other end of the positioning connector (31) is threadedly connected to the worktable (20).

6. The intermediate shaft gear single-key tooth marking device according to claim 3, characterized in that, The positioning mandrel (32) is provided with a first mating groove (35), which is arranged along the axis of the positioning mandrel (32). The positioning bushing (33) is provided with a second mating groove (36), which is arranged along the axis of the positioning bushing (33). The first mating groove (35) and the second mating groove (36) are directly opposite each other. Both the first mating groove (35) and the second mating groove (36) are connected to the other end of the intermediate shaft mating key (40).

7. The intermediate shaft gear single-key tooth marking device according to claim 6, characterized in that, The second mating groove (36) is located above the first mating groove (35).

8. The intermediate shaft gear single-key tooth marking device according to claim 6, characterized in that, The intermediate shaft mating key (40) is connected to the positioning bushing (33) through the first connector (41). One end of the first connector (41) passes through the intermediate shaft mating key (40) and is connected to the positioning bushing (33). The other end of the first connector (41) is located inside the intermediate shaft mating key (40).

9. The gear single-key tooth marking device for intermediate shaft plates according to claim 3, characterized in that, The positioning mandrel (32) is connected to the positioning bushing (33) via the second connector (37). One end of the second connector (37) passes through the positioning bushing (33) and is connected to the positioning mandrel (32). The other end of the second connector (37) is located inside the positioning bushing (33).

10. The intermediate shaft gear single-key tooth marking device according to claim 3, characterized in that, The marking machine (10) is mounted on the workbench (20) via a support column (11).

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