Full-automatic positioning clamp for gear machining

Abstract

The utility model provides a full-automatic positioning clamp for gear machining, and belongs to the technical field of gear machining clamps. The rotating cylinder is provided with an inner cavity, and the inner cavity is rectangular and is rotationally connected to one side end of the supporting plate; the four groups of positioning and clamping mechanisms are used for fixing the gear on the outer side of the rotary drum; the driving mechanism is connected with the four groups of positioning and clamping mechanisms so as to realize simultaneous operation of the four groups of positioning and clamping mechanisms; the four positioning and clamping mechanisms can be driven to operate through the driving mechanism, so that nut blocks in the positioning and clamping mechanisms can drive a plurality of connecting rods to move, a plurality of arc-shaped plates move towards the outer side, the four arc-shaped plates move towards the outer side at the same time, and when a gear is arranged on the circumferential surface of the rotating drum in a sleeving mode, the rotating drum is driven to rotate. The multiple arc-shaped plates can abut against the inner surface of the gear so that the gear can be fixed, the positions of the four arc-shaped plates can be synchronously adjusted, gears with different inner diameters can be located and fixed, and the gear fixing device is more practical.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear processing fixtures, and in particular relates to a full-automatic positioning fixture for gear processing. Background Art

[0002] Gear transmission is one of the important forms of mechanical transmission. Its manufacturing accuracy, strength, wear resistance, etc. directly affect the operation and service life of the machine. Therefore, gears are required to have high precision, high strength and good wear resistance, which often requires fine processing.

[0003] After searching, it was found that in the Chinese patent with the authorization announcement number "CN217666930U", "a gear processing fixture is disclosed, which relates to the field of gear processing technology. It includes a support base, on which a support frame is fixedly installed, on which a support frame is fixedly installed, on which a support frame is fixedly installed, on which a clamping assembly is arranged, on which a cleaning assembly is arranged, and on which the clamping assembly includes a sleeve rod, on which a movable rod is fixedly installed, and on the top of which a clamping plate is fixedly installed. The gear processing fixture is provided with a clamping assembly on the support frame, and the clamping plate is placed in the inner diameter of the gear by passing the gear through the clamping plate. The clamping plate can be stretched open by the rotation of the threaded rod, so that the clamping plate can squeeze the inner diameter of the gear, thereby restricting the gear on the clamping plate, thereby achieving the effect of clamping the gear, making the gear processing fixture more convenient to use and improving its practicality."

[0004] However, the above technical solution supports and fixes the gear by manually rotating the threaded rod, which is not only troublesome to operate and reduces efficiency, but also easily causes looseness during fixation. Utility Model Content

[0005] The utility model aims to provide a fully automatic positioning fixture for gear processing, aiming to solve the problem in the prior art of supporting and fixing the gear by manually rotating the threaded rod, which is not only cumbersome to operate and slows down efficiency, but also easily causes looseness during fixation.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] Fully automatic positioning fixture for gear machining, including:

[0008] Support plate;

[0009] A rotating drum, which is provided with an inner cavity, and the inner cavity is rectangular and rotatably connected to one side end of the supporting plate;

[0010] A positioning clamping mechanism, which is provided with four groups and is used to fix the gears on the outer side of the rotating drum;

[0011] A driving mechanism is connected to the four groups of positioning and clamping mechanisms to realize the simultaneous operation of the four groups of positioning and clamping mechanisms; wherein

[0012] Each group of the positioning and clamping mechanisms comprises:

[0013] A screw rod, one end of which is rotatably connected to an inner wall of one side of the rotating drum;

[0014] A nut block, threadedly connected to the circumferential surface of the screw rod;

[0015] A plurality of sliding holes are provided, all of which are opened on the circumferential surface of the rotating drum;

[0016] A plurality of connecting rods are provided, which match the sliding holes, one end of each of the connecting rods is fixed to one side end of the nut block, and each of the connecting rods is slidably connected to each of the sliding holes;

[0017] The arc-shaped plate is fixed to the other end of the plurality of connecting rods.

[0018] As a preferred solution of the utility model, the driving mechanism includes:

[0019] A second motor is fixed to one side of the drum, and one end of the second motor is movable and penetrates into the drum;

[0020] A rotating shaft, one end of which is rotatably connected to an inner wall of one side of the rotating drum and is fixed to an output end of the second motor;

[0021] A conical gear disc fixed on the circumferential surface of the rotating shaft;

[0022] There are four pinion gears, which are respectively fixed on the circumferential surfaces of the four screw rods, and the four pinion gears are all obliquely meshed with the conical gear disc.

[0023] As a preferred solution of the utility model, a rubber pad is provided on the surface of one side of the plurality of arc-shaped plates away from the rotating drum.

[0024] As a preferred solution of the utility model, a reinforcing plate is fixed to the inner wall of the rotating drum via a plurality of inclined rods, and the reinforcing plate is rotatably connected to the rotating shaft and one end of the plurality of screw rods.

[0025] As a preferred solution of the utility model, threads are arranged on both sides of the circumferential surface of the rotating drum, and the rotating drum is threadedly connected with a screw ring through the threads.

[0026] As a preferred solution of the utility model, a first motor is fixed to the other side end of the support plate, and an output end of the first motor movably passes through the support plate and is fixed to the rotating drum.

[0027] As a preferred solution of the utility model, a counterweight base is fixed to the bottom of the support plate, and a placement column is fixed to the top of the counterweight base.

[0028] Compared with the prior art, the beneficial effects of the utility model are:

[0029] 1. In this solution, the driving mechanism provided can drive the four positioning and clamping mechanisms to operate, so that the nut block in the positioning and clamping mechanism can drive the multiple connecting rods to move, thereby causing the multiple arc plates to move outward, and the four arc plates move outward at the same time. When the gear is sleeved on the circumferential surface of the rotating drum, the multiple arc plates can abut against the inner surface of the gear to fix the gear. Moreover, the positions of the four arc plates in this device can be adjusted synchronously, which can adapt to the positioning and fixing of gears with different inner diameters, and is more practical.

[0030] 2. In this solution, a reinforcing plate is provided, which is supported and fixed in the rotating drum by a plurality of inclined rods, and can further support the rotating shaft and a plurality of screw rods, so that the rotating shaft and the plurality of screw rods are more stable when rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0032] Figure 1 It is a first perspective stereogram in the utility model;

[0033] Figure 2 It is an exploded view of the utility model;

[0034] Figure 3 It is a partial stereoscopic diagram of the positioning and clamping part in the utility model;

[0035] Figure 4 It is a partial cross-sectional view of the utility model;

[0036] Figure 5 This is a second perspective stereogram in the present invention.

[0037] In the figure: 1. counterweight base; 2. support plate; 3. rotating drum; 4. rotating shaft; 5. conical gear plate; 6. pinion; 7. nut block; 8. lead screw; 9. connecting rod; 10. arc plate; 11. rubber pad; 12. sliding hole; 13. reinforcing plate; 14. inclined rod; 15. thread; 16. screw ring; 17. first motor; 18. placement column; 19. second motor. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Example

[0040] See also Figure 1-Figure 5 , the utility model provides the following technical solutions:

[0041] Fully automatic positioning fixture for gear machining, including:

[0042] Support plate 2;

[0043] The rotating drum 3 is provided with an inner cavity which is rectangular and rotatably connected to one side end of the supporting plate 2;

[0044] A positioning clamping mechanism, which is provided with four groups, is used to fix the gears on the outer side of the drum 3;

[0045] The driving mechanism is connected to the four positioning and clamping mechanisms to realize the simultaneous operation of the four positioning and clamping mechanisms;

[0046] Each set of positioning and clamping mechanisms includes:

[0047] A screw rod 8, one end of which is rotatably connected to an inner wall of a side of the rotating drum 3;

[0048] A nut block 7 is threadedly connected to the circumferential surface of the screw rod 8;

[0049] A plurality of sliding holes 12 are provided, all of which are opened on the circumferential surface of the rotating drum 3;

[0050] A plurality of connecting rods 9 are provided, which match the slide holes 12, one end of each of the connecting rods 9 is fixed to one side end of the nut block 7, and each of the connecting rods 9 is slidably connected to each of the slide holes 12;

[0051] The arc plate 10 is fixed to the other end of the plurality of connecting rods 9 .

[0052] In a specific embodiment of the utility model, in this device, the drum 3 can rotate on the support plate 2, and the gear sleeve is arranged on the outer side of the drum 3. Since the drum 3 can rotate, the angle of the gear after being fixed can be adjusted. The driving mechanism provided can drive the four positioning clamping mechanisms to operate, so that the screw rod 8 in the positioning clamping mechanism rotates. When the screw rod 8 rotates, it can drive the nut block 7 to move. The nut block 7 can drive multiple connecting rods 9 to move. The connecting rod 9 slides in the sliding hole 12, driving the arc plate 10 to move outward. The four arc plates 10 are attached to the surface of the drum 3, stretched outward, and abutted against the inner surface of the gear to fix the gear. Moreover, the positions of the four arc plates 10 in this device can be adjusted synchronously, which can adapt to the positioning and fixing of gears with different inner diameters, and is more practical.

[0053] Specifically, the driving mechanism includes:

[0054] The second motor 19 is fixed to one side of the drum 3, and one end of the second motor 19 is movable and penetrates into the drum 3;

[0055] A rotating shaft 4, one end of which is rotatably connected to an inner wall of the rotating drum 3 and fixed to an output end of the second motor 19;

[0056] A conical toothed disc 5 is fixed on the circumferential surface of the rotating shaft 4;

[0057] There are four pinion gears 6 , which are respectively fixed on the circumferential surfaces of the four screw rods 8 , and the four pinion gears 6 are all obliquely meshed with the conical gear disc 5 .

[0058] In this embodiment: in the driving mechanism, the second motor 19 drives the rotating shaft 4 to rotate, and the rotating shaft 4 drives the conical gear plate 5 to rotate. Since the conical gear plate 5 is engaged with the four pinions 6 at the same time, the four pinions 6 rotate at the same time, thereby being able to drive multiple screw rods 8 to rotate, so as to realize the driving positioning clamping mechanism.

[0059] Specifically, a rubber pad 11 is disposed on the surface of one side of the plurality of arc-shaped plates 10 away from the rotating drum 3 .

[0060] In this embodiment, by providing the rubber pad 11 , when the arc plate 10 abuts against the inner surface of the gear, the rubber pad 11 contacts the inner surface of the gear, thereby increasing the friction force and making the gear more stable.

[0061] Specifically, a reinforcing plate 13 is fixed to the inner wall of the rotating drum 3 via a plurality of inclined rods 14 , and the reinforcing plate 13 is rotatably connected to the rotating shaft 4 and one end of the plurality of screw rods 8 .

[0062] In this embodiment, the reinforcing plate 13 is supported and fixed in the rotating drum 3 by a plurality of inclined rods 14, so as to further support the rotating shaft 4 and the plurality of screw rods 8, so that the rotating shaft 4 and the plurality of screw rods 8 are more stable when rotating.

[0063] Specifically, threads 15 are provided on both sides of the circumferential surface of the rotating drum 3 , and the rotating drum 3 is threadedly connected with a screw ring 16 via the threads 15 .

[0064] In this embodiment: the screw ring 16 can rotate on the surface of the rotating drum 3. When the screw ring 16 rotates, it can move toward the gear and press against the gear to further fix the gear. One screw ring 16 is arranged on the side of the rotating drum 3 close to the support plate 2, and the other screw ring 16 is arranged on the side of the rotating drum 3 away from the support plate 2. It can be removed without affecting the gear being mounted on the surface of the rotating drum 3.

[0065] Specifically, a first motor 17 is fixed to the other side end of the support plate 2 , and an output end of the first motor 17 movably passes through the support plate 2 and is fixed to the rotating drum 3 .

[0066] In this embodiment, the first motor 17 can drive the rotating drum 3 to rotate, thereby adjusting the angle of the rotating drum 3 and adjusting the gear angle.

[0067] Specifically, a counterweight base 1 is fixed to the bottom of the support plate 2 , and a placement column 18 is fixed to the top of the counterweight base 1 .

[0068] In this embodiment: the counterweight base 1 is provided to make the device more stable when placed on the workbench. The placement column 18 is used to place the gears before or after processing, and is sleeved on the surface of the placement column 18, which is convenient and practical.

[0069] It should be noted that the first motor 17 and the second motor 19 are both existing technologies and will not be described in detail.

[0070] The working principle and use process of the utility model: when the device is used, the gear is sleeved on the surface of the rotating drum 3 and located on the outer side of the arc plate 10, and then the second motor 19 is started, and the output end of the second motor 19 drives the rotating shaft 4 to rotate, and the rotating shaft 4 drives the conical gear plate 5 to rotate. Since the conical gear plate 5 is meshed with the four pinion gears 6 at the same time, the four pinion gears 6 rotate at the same time, thereby being able to drive multiple screw rods 8 to rotate. When the screw rods 8 rotate, they can drive the nut block 7 to move, and the nut block 7 can drive multiple connecting rods 9 to move. The connecting rods 9 slide in the sliding holes 12 and drive the arc plate 10 to move outward. The four arc plates 10 are attached to the surface of the rotating drum 3, stretched outward, and abutted against the inner surface of the gear to fix the gear. Moreover, the positions of the four arc plates 10 in the device can be adjusted synchronously, which can adapt to the positioning and fixing of gears with different inner diameters, which is more practical and is driven by the first motor 17 and the second motor 19 to achieve automatic clamping.

[0071] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. Fully automatic positioning fixture for gear processing, characterized in that: include: Support plate (2); A rotating drum (3) is provided with an inner cavity which is rectangular and is rotatably connected to one side end of the supporting plate (2); A positioning clamping mechanism, which is provided with four groups and is used to fix the gear on the outer side of the rotating drum (3); A driving mechanism connected to the four groups of positioning and clamping mechanisms to enable the four groups of positioning and clamping mechanisms to operate simultaneously; in Each group of the positioning and clamping mechanisms comprises: A screw rod (8), one end of which is rotatably connected to an inner wall of one side of the rotating drum (3); A nut block (7) threadedly connected to the circumferential surface of the screw rod (8); A plurality of sliding holes (12) are provided, all of which are opened on the circumferential surface of the rotating drum (3); A plurality of connecting rods (9) are provided, which match the sliding holes (12), one end of each of the connecting rods (9) is fixed to one side end of the nut block (7), and each of the connecting rods (9) is slidably connected to each of the sliding holes (12); The arc-shaped plate (10) is fixed to the other end of the plurality of connecting rods (9).

2. The fully automatic positioning fixture for gear machining according to claim 1, characterized in that: The driving mechanism comprises: A second motor (19) is fixed to one side end of the rotating drum (3), and one end of the second motor (19) is movable and penetrates into the rotating drum (3); A rotating shaft (4), one end of which is rotatably connected to an inner wall of one side of the rotating drum (3) and is fixed to an output end of the second motor (19); A conical toothed disc (5) fixed on the circumferential surface of the rotating shaft (4); There are four pinions (6) which are respectively fixed on the circumferential surfaces of the four screw rods (8), and the four pinions (6) are all obliquely meshed with the conical toothed disc (5).

3. The fully automatic positioning fixture for gear machining according to claim 2, characterized in that: A rubber pad (11) is provided on the surface of one side of the plurality of arc-shaped plates (10) away from the rotating drum (3).

4. The fully automatic positioning fixture for gear machining according to claim 3, characterized in that: A reinforcing plate (13) is fixed to the inner wall of the rotating drum (3) via a plurality of inclined rods (14); the reinforcing plate (13) is rotatably connected to the rotating shaft (4) and one end of the plurality of screw rods (8).

5. The fully automatic positioning fixture for gear machining according to claim 4, characterized in that: Threads (15) are provided on both sides of the circumferential surface of the rotating drum (3), and the rotating drum (3) is threadedly connected to a screw ring (16) via the threads (15).

6. The fully automatic positioning fixture for gear machining according to claim 5, characterized in that: A first motor (17) is fixed to the other side end of the support plate (2), and an output end of the first motor (17) movably passes through the support plate (2) and is fixed to the rotating drum (3).

7. The fully automatic positioning fixture for gear machining according to claim 6, characterized in that: A counterweight base (1) is fixed to the bottom of the support plate (2), and a placement column (18) is fixed to the top of the counterweight base (1).

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