Universal gear shaping machine clamping tool

Abstract

The utility model provides a universal gear shaping machine clamping fixture, which relates to the technical field of internal and external tooth groove processing, and solves the technical problems of the limited adjustment range, complex design, high manufacturing cost, and complex operation of replacing fixtures of existing crankshaft gear shaping fixtures. The utility model includes a workbench, and the workbench is provided with a base for supporting one end of the crankshaft and a support frame for adjusting the crankshaft, and the support frame is provided with a positioning belt for fixing the other end of the crankshaft. The utility model can be conveniently applied to crankshafts of different shaft lengths for gear shaping processing by adjusting the position of the positioning belt at the other end of the crankshaft through the support frame, and does not need to design different fixtures for different crankshafts, thereby reducing costs and shortening debugging time.

Description

Technical Field

[0001] The utility model relates to the technical field of internal and external tooth groove processing, in particular to a universal gear shaping machine clamping tool. Background Art

[0002] The crankshaft is the core part of the engine. It has a complex shape, poor rigidity, high precision requirements, long process route and great processing difficulty. Most of them have timing sprockets or gears, splines, etc. on the crankshaft body, and some have angle requirements with the connecting rod neck, so most of them are processed by gear shaping.

[0003] Common gear shaping clamping tools include: center hole at both ends + spring chuck auxiliary clamp main shaft neck drive; three-jaw automatic centering clamp shaft neck drive. Angle positioning method: use the slider to slide in, and manually withdraw after positioning; or use the automatic centering jaw to clamp the connecting rod neck and withdraw after positioning.

[0004] For example, the patent with publication number CN218476112U proposes a vertical gear-slotting fixture for a toothed crankshaft, which can not only clamp the workpiece, but also position the workpiece in the axial direction, thereby ensuring the position accuracy of the gear and the journal on the circumference and improving the processing quality and efficiency.

[0005] However, due to the complex structure of crankshafts and their different lengths and sizes, the existing gear shaping fixtures have the following problems: 1. Since the up and down movement adjustment range of machine tool tools is limited (only about 80mm), products of different lengths need to be processed on different machine tools, or tool connection plate adjustments need to be designed separately; 2. When designing gear shaping tooling for different products, it is necessary to design clamping and angle positioning tooling separately according to the size, length, structure, etc. of the crankshaft, resulting in complex tooling design and high manufacturing costs; 3. When switching production, the tooling needs to be replaced as a whole, and the debugging time is long. Utility Model Content

[0006] The utility model aims to provide a universal gear shaping machine clamping fixture to solve the technical problems of the existing crankshaft gear shaping fixture having limited adjustment range, complex design, high manufacturing cost and complicated fixture replacement operation.

[0007] The embodiments of the present invention are implemented by the following technical solutions:

[0008] A universal gear shaping machine clamping tool comprises a workbench, wherein the workbench is provided with a base for supporting one end of a crankshaft and a support frame for adjusting the crankshaft, and the support frame is provided with a positioning belt for fixing the other end of the crankshaft.

[0009] By adopting this technical solution, the position of the positioning belt at the other end of the crankshaft can be adjusted by the support frame, so that crankshafts with different shaft lengths can be conveniently used for gear shaping processing, and there is no need to design different tooling for different crankshafts, thereby reducing costs and shortening debugging time.

[0010] Preferably, the support frame includes a vertically arranged support rod and a connecting rod slidably arranged on the support rod, the connecting rod is provided with a horizontally telescopic connecting plate, and the connecting plate is connected to the positioning belt.

[0011] By adopting this technical solution, the support frame can be adjusted in height by telescoping the supporting rod through the connecting rod to adapt to crankshafts of different lengths, and then the position of the adjusting shaft can be adjusted horizontally through the connecting plate, which is convenient for installation.

[0012] Preferably, the base is provided with a support platform, the support platform is provided with a fixing ring for fixing one end of the crankshaft, and the fixing ring is provided with a lower locking screw for fixing the crankshaft.

[0013] By adopting this technical solution, the base supports the crankshaft through the support platform, and fixes the crankshaft through the lower locking screw. The structure is stable and the crankshaft is not easy to slide or shake, thereby affecting the gear shaping.

[0014] Preferably, the fixing ring is telescopically provided with a lower center for fixing the crankshaft.

[0015] By adopting the technical solution, the support platform is fixed through the hollow part of one end of the crankshaft inserted by the lower center, preventing the crankshaft from falling off while not affecting the rotation of the crankshaft relative to the lower center for gear insertion.

[0016] Preferably, the positioning belt is telescopically provided with an upper top facing downwards.

[0017] By adopting the technical solution, similarly, the other end of the crankshaft fixed by the positioning belt is also fixed by the upper center, and does not affect the rotation of the crankshaft relative to the upper center.

[0018] Preferably, the positioning belt is provided with an upper locking screw, and the upper locking screw is also threadedly connected to a fixing frame, and the fixing frame is connected to the connecting plate.

[0019] By adopting this technical solution, the crankshaft is fixed by the upper locking screw and driven to rotate.

[0020] Preferably, the connecting plate is provided with a sliding groove, and the connecting rod is provided with a fastener passing through the sliding groove.

[0021] By adopting the technical solution, the connecting plate is slidably connected to the connecting rod through the sliding groove, and the sliding is controlled by tightening or loosening the fastener.

[0022] Preferably, the support rod is provided with a connecting seat connected to the workbench.

[0023] Preferably, the base is provided with a plurality of groups of radially distributed fixing grooves, and the fixing grooves are connected to the workbench via T-shaped screws.

[0024] By adopting the technical solution, the base can be fixed by radially distributed fixing grooves, and screws are respectively arranged in different fixing grooves to clamp them, and the base is evenly stressed on the workbench.

[0025] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0026] 1. The utility model can be conveniently applied to gear shaping processing of crankshafts with different shaft lengths by adjusting the position of the positioning belt at the other end of the crankshaft through the support frame, and does not need to design different tooling for different crankshafts, thereby reducing costs and shortening debugging time;

[0027] 2. The support platform of the utility model is fixed through the hollow part of one end of the crankshaft inserted by the lower center, so as to prevent the crankshaft from falling off and not affect the rotation of the crankshaft relative to the lower center for gear inserting;

[0028] 3. The utility model has a stable structure, uniform force, and can extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A schematic diagram of the structure of a universal gear shaping machine clamping fixture provided in Example 1 of the utility model;

[0031] Figure 2 A schematic structural diagram of a base of a universal gear shaping machine clamping fixture provided in Example 1 of the utility model;

[0032] Figure 3 A schematic diagram of the side structure of a support frame of a universal gear shaping machine clamping fixture provided in Example 2 of the utility model;

[0033] Figure 4 A schematic diagram of the top view of the support frame of the universal gear shaping machine clamping fixture provided in Example 2 of the utility model;

[0034] Figure 5 A schematic structural diagram of a base of a universal gear shaping machine clamping fixture provided in Example 2 of the utility model;

[0035] Icons: 1. Base; 11. Fixing groove; 2. Support platform; 21. Fixing ring; 22. Lower locking screw; 23. Lower center; 3. Workbench; 4. Support platform; 41. Connecting seat; 42. Support rod; 43. Connecting rod; 431. Fastener; 44. Connecting plate; 441. Slide groove; 5. Positioning belt; 51. Upper locking screw; 52. Fixing bracket; 53. Upper center; 6. Crankshaft. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme 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 part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] 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 present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Example 1

[0042] A universal gear shaping machine clamping tool comprises a workbench 3, wherein the workbench 3 is provided with a base 1 for supporting one end of a crankshaft 6 and a support frame for adjusting the crankshaft 6, wherein the support frame is provided with a positioning belt 5 for fixing the other end of the crankshaft 6.

[0043] By adopting this technical solution, the position of the positioning belt 5 at the other end of the crankshaft 6 can be adjusted by the support frame, so that the gear shaping process can be conveniently performed on crankshafts 6 with different shaft lengths, and there is no need to design different tooling for different crankshafts 6, thereby reducing costs and shortening debugging time.

[0044] In this embodiment, the support frame includes a vertically arranged support rod 42 and a connecting rod 43 slidably arranged on the support rod 42 . The connecting rod 43 is provided with a horizontally telescopic connecting plate 44 , and the connecting plate 44 is connected to the positioning belt 5 .

[0045] By adopting the technical solution, the support frame can be adjusted in height by telescoping the connecting rod 43 with the supporting rod 42 to adapt to the crankshafts 6 of different lengths, and then the position of the axis can be adjusted horizontally by the connecting plate 44, which is convenient for installation.

[0046] In this embodiment, the base 1 is provided with a support platform 2 , and the support platform 2 is provided with a fixing ring 21 for fixing one end of the crankshaft 6 , and the fixing ring 21 is provided with a lower locking screw 22 for fixing the crankshaft 6 .

[0047] By adopting the technical solution, the base 1 supports the crankshaft 6 through the support platform 2, and fixes the crankshaft 6 through the lower locking screw 22. The structure is stable and the crankshaft 6 is not easy to slide or shake, thereby affecting the gear shaping.

[0048] In this embodiment, the positioning belt 5 is provided with an upper locking screw 51 , and the upper locking screw 51 is also threadedly connected to a fixing frame 52 , and the fixing frame 52 is connected to the connecting plate 44 .

[0049] By adopting the technical solution, the crankshaft 6 is fixed by the upper locking screw 51 and driven to rotate.

[0050] In this embodiment, the connecting plate 44 is provided with a sliding groove 441 , and the connecting rod 43 is provided with a fastener 431 passing through the sliding groove 441 .

[0051] By adopting the technical solution, the connecting plate 44 is slidably connected to the connecting rod 43 through the sliding groove 441, and the sliding is controlled by tightening or loosening the fastener 431.

[0052] In this embodiment, the support rod 42 is provided with a connecting seat 41 connected to the workbench 3 .

[0053] In this embodiment, the base 1 is provided with a plurality of groups of radially distributed fixing grooves 11 , and the fixing grooves 11 are connected to the workbench 3 via T-shaped screws.

[0054] By adopting this technical solution, the base 1 can be fixed by radially distributed fixing grooves 11, and screws are respectively arranged in different fixing grooves 11 to clamp them, and the base 1 is subjected to uniform force on the workbench 3.

[0055] Example 2

[0056] The only difference between this embodiment and the first embodiment is that, in this embodiment, the fixing ring 21 is telescopically provided with a lower top 23 for fixing the crankshaft 6 .

[0057] By adopting the technical solution, the support platform 2 is fixed by inserting the lower center 23 into the hollow part of one end of the crankshaft 6, preventing the crankshaft 6 from falling off while not affecting the rotation of the crankshaft 6 relative to the lower center 23 for gear insertion.

[0058] In this embodiment, the positioning belt 5 is telescopically provided with an upper top 53 facing downward.

[0059] With the present technical solution, similarly, the other end of the crankshaft 6 fixed by the positioning belt 5 is also fixed by the upper center 53 , and does not affect the rotation of the crankshaft 6 relative to the upper center 53 .

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A universal gear shaping machine clamping fixture, comprising a workbench (3), characterized in that: The workbench (3) is provided with a base (1) for supporting one end of a crankshaft (6) and a support frame for adjusting the crankshaft (6); the support frame is provided with a positioning belt (5) for fixing the other end of the crankshaft (6).

2. The universal gear shaping machine clamping fixture according to claim 1, characterized in that: The support frame comprises a vertically arranged support rod (42) and a connecting rod (43) slidably arranged on the support rod (42); the connecting rod (43) is provided with a horizontally telescopic connecting plate (44); and the connecting plate (44) is connected to the positioning belt (5).

3. The universal gear shaping machine clamping fixture according to claim 1 or 2, characterized in that: The base (1) is provided with a support platform (2), the support platform (2) is provided with a fixing ring (21) for fixing one end of the crankshaft (6), and the fixing ring (21) is provided with a lower locking screw (22) for fixing the crankshaft (6).

4. The universal gear shaping machine clamping fixture according to claim 3 is characterized in that: The fixing ring (21) is telescopically provided with a lower top (23) for fixing the crankshaft (6).

5. The universal gear shaping machine clamping fixture according to claim 4, characterized in that: The positioning belt (5) is telescopically provided with an upper top (53) facing downward.

6. The universal gear shaping machine clamping fixture according to claim 2, characterized in that: The positioning belt (5) is provided with an upper locking screw (51), and the upper locking screw (51) is also threadedly connected to a fixing frame (52), and the fixing frame (52) is connected to the connecting plate (44).

7. The universal gear shaping machine clamping fixture according to claim 6, characterized in that: The connecting plate (44) is provided with a sliding groove (441), and the connecting rod (43) is provided with a fastener (431) passing through the sliding groove (441).

8. The universal gear shaping machine clamping fixture according to any one of claims 2, 6 and 7, characterized in that: The support rod (42) is provided with a connecting seat (41) connected to the workbench (3).

9. The universal gear shaping machine clamping fixture according to any one of claims 1, 2 and 4-7, characterized in that: The base (1) is provided with a plurality of groups of radially distributed fixing grooves (11), and the fixing grooves (11) are connected to the workbench (3) via T-shaped screws.

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