Shaping device for powder metallurgy gear machining

Abstract

The shaping device for powder metallurgy gear machining comprises a fixing plate, a rotating disc and a three-jaw chuck, a movable frame is arranged on one side of the fixing plate, a first motor is fixedly connected to one side of the upper end of the movable frame, the output end of the first motor is fixedly connected with a first screw rod, and the first screw rod is in threaded connection with the fixing plate; according to the utility model, through the arrangement of the moving block and the infrared sensor which can move longitudinally and transversely, the height standard of the gear can be detected, and then the inner circle of the gear is limited through the three-jaw chuck, so that the detection precision of the gear is improved, and the detection precision of the gear is improved. Whether the inner circle of the gear is accurate or not is monitored through the adjusting block and the contact roller, then the electric telescopic rod and the pressing plate are used for making contact with the end face of the gear, the connecting disc and the rotating disc rotate synchronously, the edge of the gear can be promoted to rotate, and therefore the positioning monitoring effect is provided, and the gear shaping effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder metallurgy gear technical field, concretely relates to a shaping device for powder metallurgy gear machining. BACKGROUND

[0002] The powder metallurgy gear is a kind of gear formed by powder metallurgy, and the shaping of the powder metallurgy gear is mainly in the processing stage after sintering, which needs to be processed by turning, grinding and gear cutting to correct the shape and size deviation that may occur in the sintering process, so as to ensure the precision and performance of the gear.

[0003] During the pressing process of the powder metallurgy gear, the processing mold will be worn out during long-term use, causing changes in the size and shape of the mold, which cannot meet the design requirements, so the gear needs to be polished and ground after production to adapt to the shape and precision of the gear, but the gear needs to be positioned by the clamp during polishing and polishing, which will cause inaccurate positioning due to the shape and size deviation of the gear.

[0004] According to the "shaping device for powder metallurgy gear machining" with Chinese patent publication number CN214919387U, the main description is that the extension rod is opened by the switch, and the extension rod will move downward, the pressing plate will contact the gear during the downward movement of the extension rod, the gear is fixed by the pressing plate, and the friction between the workbench and the supporting table is reduced by the setting of the ball, which facilitates the rotation of the supporting table, and the positioning effect of the clamp during clamping is not good during the finishing process of the gear, which will cause problems during polishing.

[0005] Therefore, a shaping device for powder metallurgy gear machining is proposed to solve the problem that the positioning effect of the clamp during clamping is not good during the finishing process of the gear, which will cause problems during polishing. Utility model content

[0006] The utility model solves the technical problems: during the finishing process of the gear, the positioning effect of the clamp during clamping is not good due to the shape and size deviation of the gear, which will cause problems during polishing, therefore a shaping device for powder metallurgy gear machining is proposed.

[0007] The utility model discloses a technical scheme that solves technical problems is adopted: a kind of shaping device for powder metallurgy gear machining, including fixed plate, rotary disc and three-jaw chuck, the fixed plate one side is provided with moving frame, first motor is fixedly connected with on moving frame upper end one side, first motor output end is fixedly connected with first screw rod, and first screw rod is connected with fixed plate by screw thread, limit slot is set up on moving frame, second motor is fixedly connected with on moving frame side at limit slot side, second motor output end is fixedly connected with second screw rod, and second screw rod is connected with moving block by screw thread on second screw rod, infrared sensor is fixedly connected with on moving block one side, the fixed plate side away from moving frame is fixedly connected with baffle, the fixed plate upper end is fixedly connected with support, the support upper end is fixedly connected with third motor, third motor output end is fixedly connected with adapter disc, electric push rod is contacted with on adapter disc bottom end, electric push rod bottom end is fixedly connected with fixed frame, fourth motor is fixedly connected with on fixed frame one side, fourth motor output end is fixedly connected with two-way screw rod, and the two sides of two-way screw rod that are away from each other are all connected with adjusting block by screw thread on two-way screw rod, contact rod is rotatably connected with on adjusting block bottom end, distance sensor is fixedly connected with on fixed frame one side, distance sensor and adjusting block correspond.

[0008] As a preferred technical scheme of the utility model, the support ball is embedded in the bottom side of the support, and the support ball is in contact with the adapter disc. By arranging the support ball, the rotating friction of the adapter disc is reduced.

[0009] As a preferred technical scheme of the utility model, the adapter disc is fixedly connected with the sleeve at the center of the bottom end, the sleeve is threadedly connected with the positioning rod at one side, and the positioning rod is inserted into one side of the electric push rod. By arranging the sleeve and the positioning rod, the electric push rod can be disassembled according to actual conditions.

[0010] As a preferred technical scheme of the utility model, the adapter disc is fixedly connected with the electric telescopic rod at the bottom end on four sides, and the electric telescopic rod is fixedly connected with the pressing plate at the bottom end. By arranging the electric telescopic rod and the pressing plate to contact the gear end faces, another extrusion mode can be provided.

[0011] As a preferred technical scheme of the utility model, screw holes are uniformly arranged at the bottom end of the pressing plate, and the movable rod is threadedly connected with one of the screw holes. By arranging the movable rod, the supporting surface is reduced, and the limiting effect on the gear is improved.

[0012] The utility model has the advantages that: through the setting of the movable block and the infrared sensor which can move longitudinally and transversely, the height standard of the gear can be detected, then the gear inner circle is limited by the three-jaw chuck, the inner circle of the gear is monitored by the adjusting block and the contact roller, then the gear end face is contacted by the electric telescopic rod and the pressing plate, the connecting disc and the rotating disc are synchronously rotated, the edge of the gear is rotated, thereby the positioning monitoring is provided, and the effect of the gear shaping is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a three-dimensional structure schematic diagram of a shaping device for powder metallurgy gear machining of a preferred embodiment of the utility model;

[0014] Fig. 2 It is a side view structure schematic diagram of a shaping device for powder metallurgy gear machining of a preferred embodiment of the utility model;

[0015] Fig. 3 It is a three-dimensional structure schematic diagram of the pressing plate of a shaping device for powder metallurgy gear machining of a preferred embodiment of the utility model.

[0016] The figure mark explanation: 1, fixed plate, 2, rotating disc, 3, three-jaw chuck, 4, moving frame, 5, first screw rod, 6, second screw rod, 7, movable block, 8, infrared sensor, 9, baffle, 10, support, 11, connecting disc, 12, electric push rod, 13, fixed frame, 14, two-way screw rod, 15, adjusting block, 16, contact rod, 17, distance sensor, 18, sleeve, 19, positioning rod, 20, supporting ball, 21, electric telescopic rod, 22, pressing plate, 23, movable rod. DETAILED DESCRIPTION

[0017] The utility model will be further described below in combination with the drawings.

[0018] Please combine with the reference Figs. 1-3The illustrated powder metallurgy gear shaping device for machining includes a fixed plate 1, a rotating disc 2 and a three-jaw chuck 3, the gear is placed on the three-jaw chuck 3, the bottom side of the fixed plate 1 is provided with a fifth motor to drive the rotating disc 2 to rotate, one side of the fixed plate 1 is provided with a mechanical arm and a polishing roller, which can shape and process the powder metallurgy gear, one side of the fixed plate 1 is provided with a moving frame 4, one side of the upper end of the moving frame 4 is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first screw rod 5, the first motor drives the first screw rod 5 to rotate, which can make the moving frame 4 move up and down to adjust the height of the infrared sensor 8, the first screw rod 5 is threadedly connected with the fixed plate 1, a limiting groove is formed in the moving frame 4, one side of the moving frame 4 located in the limiting groove is fixedly connected with a second motor, the second motor drives a second screw rod 6 to rotate, which can make the moving block 7 and the infrared sensor 8 move horizontally, the output end of the second motor is fixedly connected with the second screw rod 6, the second screw rod 6 is threadedly connected with the moving block 7, one side of the moving block 7 is fixedly connected with the infrared sensor 8, the infrared sensor 8 contacts a baffle 9, which will feedback normal signals, when the infrared sensor 8 scans the cross section of the gear, if it is found to be blocked, it will transmit other signals, one side of the fixed plate 1 away from the moving frame 4 is fixedly connected with the baffle 9, the upper end of the fixed plate 1 is fixedly connected with a support 10, the upper end of the support 10 is fixedly connected with a third motor, the third motor drives a connecting disc 11 to rotate, which can make a fixed frame 13 rotate, the output end of the third motor is fixedly connected with the connecting disc 11, the bottom end of the connecting disc 11 contacts an electric push rod 12, the bottom end of the electric push rod 12 is fixedly connected with the fixed frame 13, one side of the fixed frame 13 is fixedly connected with a fourth motor, the fourth motor drives a bidirectional screw rod 14 to rotate, which can make an adjusting block 15 and a contact rod 16 relatively move, the contact rod 16 contacts the inner circle of the gear, the output end of the fourth motor is fixedly connected with the bidirectional screw rod 14, the two sides of the bidirectional screw rod 14 away from each other are threadedly connected with the adjusting block 15, the third motor drives the connecting disc 11 to rotate, and at the same time drives the fixed frame 13 and the contact rod 16 to rotate, the two contact rods 16 move in the inner circle of the gear, when the inner circle of the gear is accurate, the contact rod 16 will not be blocked, when the inner circle of the gear has a problem, the contact rod 16 will stop rotating after being extruded, the bottom end of the adjusting block 15 is rotatably connected with the contact rod 16, one side of the fixed frame 13 is fixedly connected with a distance sensor 17, the distance sensor 17 corresponds to the adjusting block 15.

[0019] Wherein, the connecting disc 11 contacts a supporting ball 20, the supporting ball 20 is rotatably embedded in the bottom side of the support 10, by setting the supporting ball 20, the rotating friction of the connecting disc 11 is reduced.

[0020] Wherein, one side of the electric push rod 12 is inserted with a positioning rod 19, the positioning rod 19 is threadedly connected with a clamping sleeve 18, the clamping sleeve 18 is fixedly connected at the center of the bottom end of the connecting disc 11, by setting the positioning rod 19, the electric push rod 12 can be disassembled.

[0021] The pressing plate 22 is fixedly connected at the bottom end of the electric telescopic rod 21, the electric telescopic rod 21 is fixedly connected at the bottom end of the four sides of the adapter disc 11, the electric telescopic rod 21 can drive the pressing plate 22 to contact the upper end surface of the gear, thereby providing another way to promote the rotation of the gear, and providing limiting when processing the inner circle of the powder metallurgy gear.

[0022] The movable rod 23 is screw-connected with one of the screw holes, and the screw holes are uniformly arranged at the bottom end of the pressing plate 22, thereby reducing the contact area and facilitating the processing of the gear.

[0023] The working principle is as follows: firstly, the powder metallurgy gear is placed on the upper side of the three-jaw chuck 3, then the first motor is started to drive the first screw rod 5 to rotate, so that the moving frame 4 moves up and down, then the second motor is started to drive the second screw rod 6 to rotate, so that the moving block 7 and the infrared sensor 8 move transversely, and the infrared sensor 8 corresponds to the upper side of the gear, when the rays of the infrared sensor 8 are not blocked, the three-jaw chuck 3 is used to position the inner circle of the gear, then the three-jaw chuck 3 is loosened, then the electric telescopic rod 21 is stretched, the pressing plate 22 or the movable rod 23 contacts the upper end surface of the gear, at this time, the electric push rod 12 is stretched, the contact rod 16 contacts the inner circle of the gear, then the third motor on the support 10 is started to drive the adapter disc 11 and the electric push rod 12 to rotate, so that the contact rod 16 rotates in the inner circle of the gear, when the contact rod 16 is blocked and stops, it is proved that there is a problem in the inner circle of the gear, the electric telescopic rod 21 and the pressing plate 22 can be used to provide limiting for the gear, then the third motor cooperates with the motor at the bottom side of the fixed plate 1 to drive the rotating disc 2, the three-jaw chuck 3 and the gear to rotate, so that the gear rotates and the teeth of the gear are processed.

[0024] The above is only the preferred embodiment of the present application, and it should be pointed out that, for those skilled in the art, without departing from the principle of the present application, some improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

[0025] The other parts not described in the present application are all prior art, so they will not be described here.

[0026] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A powder metallurgy gear machining sizing device comprising a fixed plate (1), a rotating disc (2) and a three-jaw chuck (3), characterized in that, The fixed plate (1) one side is provided with the movement frame (4), the first motor is fixedly connected on the upper end of the movement frame (4) one side, the first motor output end is fixedly connected with the first screw rod (5), the first screw rod (5) is threaded connection fixed plate (1), the movement frame (4) is opened in the limit groove, the movement frame (4) is fixedly connected with the second motor on the limit groove one side, the second motor output end is fixedly connected with the second screw rod (6), the second screw rod (6) is threaded connection with the moving block (7), the moving block (7) one side is fixedly connected with the infrared sensor (8), the fixed plate (1) is fixedly connected with the baffle (9) away from the movement frame (4) one side, the fixed plate (1) upper end is fixedly connected with the support (10), the support (10) upper end is fixedly connected with the third motor, the third motor output end is fixedly connected with the adapter disc (11), the adapter disc (11) bottom end is contacted with the electric push rod (12), the electric push rod (12) bottom end is fixedly connected with the fixed frame (13), the fixed frame (13) one side is fixedly connected with the fourth motor, the fourth motor output end is fixedly connected with the bidirectional screw rod (14), the bidirectional screw rod (14) is threaded connection with the adjusting block (15) on the two sides away from each other, the adjusting block (15) bottom end is rotatably connected with the contact rod (16), the fixed frame (13) one side is fixedly connected with the distance sensor (17), the distance sensor (17) corresponds with the adjusting block (15).

2. A powder metallurgy gear machining sizing device as claimed in claim 1, characterized in that The support (10) bottom side is rotatably embedded with the support ball (20), the support ball (20) is in contact with the adapter disc (11).

3. A powder metallurgy gear machining sizing device as claimed in claim 2, characterized in that The adapter disc (11) bottom end center is fixedly connected with the sleeve (18), the sleeve (18) one side is threaded connection with the positioning rod (19), the positioning rod (19) is inserted into the electric push rod (12) one side.

4. A powder metallurgy gear machining sizing device as claimed in claim 3, wherein, The adapter disc (11) bottom end four sides are fixedly connected with the electric telescopic rod (21), the electric telescopic rod (21) bottom end is fixedly connected with the pressing plate (22).

5. A powder metallurgy gear machining sizing device as claimed in claim 4, wherein, The pressing plate (22) bottom end is uniformly provided with the threaded hole, one of the threaded holes is threaded connection with the movable rod (23). The movable rod (23) is rotatably connected with the pressing plate (22).

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