Crankshaft end gear press fitting tool

Abstract

The utility model belongs to the technical field of crankshaft processing, especially a kind of crankshaft end gear press mounting tool, including bottom plate, press cover, bottom plate top is equipped with panel, support side plate is equipped between panel and bottom plate, top cover is equipped on bottom plate, first clamping hole is equipped on top cover upper surface, second clamping hole is equipped on panel, and clamping groove is opened in the side surface of panel, and the side surface of panel is rotatably equipped with pressing plate, the upper surface of panel is located second clamping hole side and is equipped with limiting mechanism;Press cover is located above second clamping hole, is connected with external power mechanism, and let groove is equipped on press cover bottom surface.The first clamping hole on top cover is positioned to one end of crankshaft, the second clamping hole on panel is positioned to the processing end of crankshaft, gear is placed in the processing end of crankshaft, gear is positioned by limiting mechanism, gear is clamped in the end of crankshaft by press cover downwardly, improves processing efficiency and product quality, and reduces enterprise cost input.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft processing technology, and in particular to a crankshaft end gear press-fitting fixture. Background Technology

[0002] The crankshaft has a gear connected to its end, which drives the crankshaft to rotate. When installing the gear on the crankshaft, the crankshaft itself is relatively complex and clamping is difficult. Therefore, most of the time, workers manually clamp the crankshaft and then place the gear in the pressing position. The machine then presses the gear into place at the end of the crankshaft. This operation method involves a large workload for workers and has low work efficiency. Moreover, the crankshaft is not stable when clamped by workers, resulting in a low product qualification rate. In addition, the gear needs to be positioned stably before pressing, which also requires workers to clamp it, increasing the company's labor costs.

[0003] To address the aforementioned issues, this utility model document proposes a crankshaft end gear press-fitting fixture. Utility Model Content

[0004] This invention provides a crankshaft end gear press-fitting fixture, which improves product processing efficiency and product qualification rate, and reduces worker workload and enterprise cost input.

[0005] This utility model provides the following technical solution:

[0006] A crankshaft end gear press-fit fixture includes a base plate and a press sleeve. A panel is disposed on top of the base plate, and a supporting side plate is disposed between the panel and the base plate. The bottom surface of the supporting side plate is bolted to the base plate, and the top surface is bolted to the panel. A top sleeve is disposed on the base plate, and a first locking hole is formed on the upper surface of the top sleeve. A second locking hole is formed on the panel corresponding to the first locking hole. A clamping groove communicating with the second locking hole is formed on one side of the panel, and a pressure plate is disposed on this side of the panel. A limiting mechanism for preventing gear rotation is also provided on the upper surface of the panel on the side of the second locking hole. The press sleeve is disposed above the second locking hole and is connected to an external power mechanism. A clearance groove is formed on the bottom surface of the press sleeve. The central axis of the first locking hole, the central axis of the second locking hole, and the central axis of the press sleeve are coaxially arranged.

[0007] Furthermore, there are two supporting side plates, which are arranged in parallel, and the top sleeve is located between the two supporting side plates.

[0008] Furthermore, it also includes a positioning sleeve set at the top of the crankshaft being machined, and the positioning sleeve is a circular cylindrical structure, and the diameter of the positioning sleeve matches the relief groove on the pressure sleeve.

[0009] Furthermore, the base plate has positioning holes, and the bottom surface of the top sleeve is provided with positioning blocks that match the positioning holes.

[0010] Furthermore, the limiting mechanism includes a limiting rod, a base box, and a cover plate that matches the base box. The base box is fixed to the panel by bolts. The upper surface of the base box has an inclined sliding groove that slopes toward the second locking hole. The limiting rod is slidably disposed in the inclined sliding groove. The cover plate is fixed to the upper surface of the base box by bolts. One end of the limiting rod adjacent to the second locking hole is provided with a locking groove that matches the teeth of the gear to be pressed in.

[0011] Furthermore, the panel with the clamping groove has a first threaded hole and a second threaded hole on its side, which are located on both sides of the clearance groove. One end of the pressure plate has a mounting hole and the other end has a locking groove. An "L"-shaped connector is provided in the mounting hole. One end of the connector is threaded to the first threaded hole, and the other end is located in the mounting hole and rotatably connected to the pressure plate. A locking bolt is provided in the second threaded hole. The locking bolt passes through the locking groove and engages with the second threaded hole. A clamping block is provided on the side of the pressure plate adjacent to the second locking hole.

[0012] In this invention, one end of the crankshaft is positioned by the first locking hole on the top sleeve, and the machined end of the crankshaft is positioned by the second locking hole on the panel. The gear is placed at the machined end of the crankshaft, and the gear is positioned by the limiting mechanism. The gear is then locked onto the crankshaft end by pressing the pressure sleeve downwards. This improves processing efficiency and product quality, and reduces enterprise cost input. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the crankshaft end gear press-fitting fixture before and after press-fitting, provided in an embodiment of the present utility model.

[0014] Figure 2 This is a cross-sectional view of the crankshaft end gear press-fitting fixture after clamping the crankshaft and gear and pressing them together, provided in an embodiment of the present utility model.

[0015] Figure 3 A top view of the base plate of a crankshaft end gear press-fitting fixture provided in an embodiment of this utility model;

[0016] Figure 4 A top view of the panel structure of a crankshaft end gear press-fitting fixture provided in an embodiment of this utility model;

[0017] Figure 5 A top view of the crankshaft clamping state in a crankshaft end gear press-fitting fixture provided in an embodiment of the present utility model;

[0018] Figure 6A perspective structural diagram of the pressure plate in a crankshaft end gear press-fitting fixture provided in an embodiment of this utility model;

[0019] Figure 7 This is a front view structural diagram of a connecting component in a crankshaft end gear press-fitting fixture provided in an embodiment of the present utility model;

[0020] Figure 8 A top view of the bottom box of a crankshaft end gear press-fitting fixture provided in an embodiment of this utility model;

[0021] Figure 9 A top view of the cover plate in a crankshaft end gear press-fitting fixture provided in an embodiment of this utility model;

[0022] Figure 10 This is a front view schematic diagram of a limiting rod in a crankshaft end gear press-fitting fixture provided in an embodiment of the present utility model;

[0023] Figure 11 A cross-sectional view of the top sleeve in a crankshaft end gear press-fitting fixture provided in an embodiment of this utility model;

[0024] Figure 12 A cross-sectional view of the pressure sleeve in a crankshaft end gear press-fitting fixture provided in an embodiment of this utility model;

[0025] Figure 13 This is a cross-sectional view of the positioning sleeve in a crankshaft end gear press-fitting fixture provided in an embodiment of the present invention.

[0026] Figure label:

[0027] 1. Base plate; 101. Positioning hole; 2. Panel; 201. Second locking hole; 202. Clamping groove; 203. First threaded hole; 204. Second threaded hole; 3. Support side plate; 4. Limiting mechanism; 401. Base box; 40101. Inclined slide groove; 402. Cover plate; 403. Limiting rod; 40301. Locking groove; 5. Top sleeve; 501. Positioning block; 502. First locking hole; 6. Pressure sleeve; 601. Relief groove; 7. Positioning sleeve; 8. Pressure plate; 801. Mounting hole; 802. Locking groove; 803. Pressing block; 804. Connecting piece; 805. Locking bolt. Detailed Implementation

[0028] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0029] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0030] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0031] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0032] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0033] Example:

[0034] Reference Figures 1-13As shown, a crankshaft end gear press-fitting fixture includes a base plate 1 and a press sleeve 6. A panel 2 is provided on the top of the base plate 1, and a supporting side plate 3 is provided between the panel 2 and the base plate 1. The bottom surface of the supporting side plate 3 is bolted to the base plate 1, and the top surface is bolted to the panel 2. A top sleeve 5 is provided on the base plate 1, and a first locking hole 502 is opened on the upper surface of the top sleeve 5. A second locking hole 201 is opened on the panel 2 corresponding to the position of the first locking hole 502. A clamping groove 202 communicating with the second locking hole 201 is opened on one side of the panel 2, and a pressure plate 8 is provided on this side of the panel 2. A limiting mechanism 4 for preventing gear rotation is also provided on the upper surface of the panel 2 on the side of the second locking hole 201. The press sleeve 6 is located above the second locking hole 201 and is connected to an external power mechanism. A relief groove 601 is opened on the bottom surface of the press sleeve 6. The central axis of the first locking hole 502, the central axis of the second locking hole 201, and the central axis of the press sleeve 6 are coaxially arranged.

[0035] One end of the crankshaft is positioned by the first clasp hole 502 on the top sleeve 5, and the machined end of the crankshaft is positioned by the second clasp hole 201. The clamping groove 202 facilitates the worker to clamp the crankshaft into the first clasp hole 502 and the second clasp hole 201. The pressure plate 8 presses the machined end of the crankshaft into the second clasp hole 201, thereby completing the clamping and positioning of the crankshaft. The gear to be pressed is placed on the machined end of the crankshaft, and the gear is positioned by the limiting mechanism 4.

[0036] The support side plate 3 is bolted between the base plate 1 and the panel 2, which makes it easy for users to replace the support side plate 3 according to the crankshaft model, so as to meet the processing needs of crankshafts of different lengths and improve the adaptability of tooling.

[0037] The clearance groove 601 facilitates the clearance of the crankshaft end when the pressure sleeve 6 presses the gear onto the crankshaft end, ensuring that the gear is pressed into place.

[0038] Open the pressure plate 8, and the worker places the crankshaft with the machined end facing upwards, inserting the other end into the first locking hole 502 of the top sleeve 5. The machined end is then secured in the second locking hole 201 from the clamping groove 202. The pressure plate 8 then presses and fixes the machined end in the second locking hole 201. Next, the gear is placed above the machined end, and the gear is positioned by the side limiting mechanism 4. Then, the pressure sleeve 6 presses the gear down, causing it to move downwards and lock into place at the end of the crankshaft. This completes the clamping operation of the crankshaft end gear. Finally, the pressure plate 8 is opened, and the machined crankshaft is removed. This reduces the worker's workload, increases processing efficiency, improves the positioning accuracy of the crankshaft and gear, thereby increasing the product qualification rate and reducing the company's labor costs.

[0039] There are two supporting side plates 3, and the two supporting side plates 3 are arranged in parallel. The top sleeve 5 is located between the two supporting side plates 3.

[0040] By supporting the panel 2 with two side supports, the stability of the panel 2 under force is improved, thereby improving the stability of crankshaft positioning, ensuring the accuracy of product pressing, and ensuring product quality.

[0041] The top sleeve 5 is positioned between the two supporting side plates 3, so that the force points of the panel 2 are supported by the supporting side plates 3 on both sides, further improving the positional stability of the panel 2.

[0042] It also includes a positioning sleeve 7 set at the top of the crankshaft being machined, and the positioning sleeve 7 is a circular cylindrical structure, and the diameter of the positioning sleeve 7 matches the relief groove 601 on the pressure sleeve 6.

[0043] Since the end diameter of the crankshaft machining end is smaller than the diameter of the gear clamping position, the positioning sleeve 7 makes the end diameter of the machining end the same as the diameter of the gear clamping position, thereby improving the positional accuracy of the gear placed on the crankshaft before pressing and ensuring the accuracy of gear pressing.

[0044] The base plate 1 has a positioning hole 101, and the bottom surface of the top sleeve 5 is provided with a positioning block 501 that matches the positioning hole 101.

[0045] The top sleeve 5 is positioned on the base plate 1 by the positioning hole 101 of the positioning block 501. This facilitates the installation of the top sleeve 5 on the base plate 1 and also makes it easy to replace the top sleeve 5 by simply pulling it upwards. This meets the processing requirements of different crankshafts and improves the adaptability of the tooling.

[0046] The limiting mechanism 4 includes a limiting rod 403, a base box 401, and a cover plate 402 that matches the base box 401. The base box 401 is fixed to the panel 2 by bolts. The upper surface of the base box 401 has an inclined sliding groove 40101 that is inclined toward the second locking hole 201. The limiting rod 403 is slidably disposed in the inclined sliding groove 40101. The cover plate 402 is fixed to the upper surface of the base box 401 by bolts. One end of the limiting rod 403 adjacent to the second locking hole 201 is provided with a locking groove 40301 that matches the teeth of the gear to be pressed in.

[0047] The gear teeth are locked in the slot 40301 at the end of the limiting rod 403 to position the gear and prevent it from rotating axially. This ensures that when the gear is pressed onto the crankshaft, the keyway inside the gear corresponds to the keyway at the end of the crankshaft. No adjustment is required after pressing, which improves the gear pressing accuracy.

[0048] The limiting rod 403 slides in the inclined slide groove 40101. When placing the gear, the limiting rod 403 can be slid towards the crankshaft to facilitate gear placement. After the gear position is determined, the limiting rod 403 can be slid towards the gear to position the gear. It can also accommodate gears of different sizes, improving the adaptability of the tooling.

[0049] The panel 2 has a clamping groove 202 on its side, which is provided with a first threaded hole 203 and a second threaded hole 204. The first threaded hole 203 and the second threaded hole 204 are located on both sides of the relief groove 601. One end of the pressure plate 8 has a mounting hole 801 and the other end has a locking groove 802. An "L"-shaped connector 804 is provided in the mounting hole 801. One end of the connector 804 is threaded to the first threaded hole 203, and the other end is located in the mounting hole 801 and is rotatably connected to the pressure plate 8. A locking bolt 805 is provided in the second threaded hole 204. The locking bolt 805 passes through the locking groove 802 and cooperates with the second threaded hole 204. A pressing block 803 is provided on the adjacent side of the pressure plate 8 and the second locking hole 201.

[0050] One end of the “L”-shaped connector 804 is threaded into the first threaded hole 203 on the side of the panel 2, while the other end faces upward. The pressure plate 8 is fitted onto the connector 804 through the mounting hole 801 and is rotatably connected to the connector 804. The other end of the pressure plate 8 is locked in place by the locking bolt 805 in the locking groove 802 and the second threaded hole 204. When the pressure plate 8 is opened, the locking bolt 805 is unscrewed, and the pressure plate 8 can be rotated. When the crankshaft needs to be fixed, the pressure plate 8 is rotated to abut against the side of the panel 2, and then the position of the pressure plate 8 can be fixed by the locking bolt 805. The side of the crankshaft can be pressed by the pressing block 803 on the side of the pressure plate 8, so that the crankshaft is fixed in the second locking hole 201.

[0051] In use, the worker first loosens the locking nut and rotates the pressure plate 8 until it separates from the side of the panel 2. With the machined end of the crankshaft facing upwards, the worker places the crankshaft between the two support side plates 3 through the clamping slot 202. Then, one end of the crankshaft is secured in the first locking hole 502 on the top sleeve 5, and the machined end is secured in the second locking hole 201 on the panel 2. The worker then rotates the pressure plate 8 until it is parallel to the side wall of the panel 2. The locking nut then secures the pressure plate 8 to the side wall of the panel 2. The clamping block 803 presses down on the side of the crankshaft, allowing the crankshaft to be machined... The crankshaft is fixed in the second locking hole 201. Then, the positioning sleeve 7 is put on the crankshaft machining end so that the diameter of the crankshaft machining end is connected to the diameter of the crankshaft locking gear position and the inner diameter of the gear. The gear can be stably placed at the end of the gear. Then, the sliding limit rod 403 is slid so that the teeth of the gear are locked in the locking groove 40301 at the end of the limit rod 403. The gear is positioned. Then, the gear is pressed down by the pressure sleeve 6 to press the gear into the crankshaft, completing the installation of the crankshaft end gear. Then, the locking nut is loosened to take out the machined crankshaft.

[0052] The workload of workers is reduced throughout the entire processing, the positioning accuracy of crankshafts and gears is high, and the processing efficiency and accuracy of products are improved.

[0053] In actual use, the support side plate 3 is connected to the base plate 1 and the panel 2 by countersunk bolts, which makes it easy to install the tooling on the worktable of the pressing equipment.

[0054] The base plate 1 is provided with an installation groove to facilitate fixing the tooling to the worktable of the pressing equipment.

[0055] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A crankshaft end gear press-fitting fixture, characterized in that, The device includes a base plate and a pressure sleeve. A panel is mounted on top of the base plate, and a supporting side plate is positioned between the panel and the base plate. The bottom surface of the supporting side plate is bolted to the base plate, and its top surface is bolted to the panel. A top sleeve is mounted on the base plate, and a first locking hole is formed on the upper surface of the top sleeve. A second locking hole is formed on the panel corresponding to the first locking hole. A clamping groove communicating with the second locking hole is formed on one side of the panel, and a pressure plate is provided on this side of the panel. A limiting mechanism for preventing gear rotation is also provided on the upper surface of the panel on the side of the second locking hole. The pressure sleeve is positioned above the second locking hole and is connected to an external power mechanism. A clearance groove is formed on the bottom surface of the pressure sleeve. The central axes of the first locking hole, the second locking hole, and the pressure sleeve are coaxially arranged.

2. The crankshaft end gear press-fitting fixture according to claim 1, characterized in that, There are two supporting side plates, which are arranged in parallel, and the top sleeve is located between the two supporting side plates.

3. The crankshaft end gear press-fitting fixture according to claim 1, characterized in that, It also includes a positioning sleeve set at the top of the crankshaft being machined, and the positioning sleeve is a circular cylindrical structure, and the diameter of the positioning sleeve matches the relief groove on the pressure sleeve.

4. The crankshaft end gear press-fitting fixture according to claim 1, characterized in that, The base plate has a positioning hole, and the bottom surface of the top sleeve is provided with a positioning block that matches the positioning hole.

5. The crankshaft end gear press-fitting fixture according to claim 1, characterized in that, The limiting mechanism includes a limiting rod, a base box, and a cover plate that matches the base box. The base box is fixed to the panel by bolts. The upper surface of the base box has an inclined sliding groove that slopes toward the second locking hole. The limiting rod is slidably disposed in the inclined sliding groove. The cover plate is fixed to the upper surface of the base box by bolts. One end of the limiting rod adjacent to the second locking hole is provided with a locking groove that matches the teeth of the gear to be pressed in.

6. The crankshaft end gear press-fitting fixture according to claim 1, characterized in that, The panel has a clamping groove on one side, which is provided with a first threaded hole and a second threaded hole. The first threaded hole and the second threaded hole are located on both sides of the clearance groove. One end of the pressure plate has a mounting hole and the other end has a locking groove. An "L"-shaped connector is provided in the mounting hole. One end of the connector is threaded to the first threaded hole, and the other end is located in the mounting hole and rotatably connected to the pressure plate. A locking bolt is provided in the second threaded hole. The locking bolt passes through the locking groove and engages with the second threaded hole. A clamping block is provided on the side of the pressure plate adjacent to the second locking hole.

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