Positioner driving and driven assembly

Abstract

The utility model discloses a driving and driven assembly of a positioner, which comprises a driving part, and the driving part comprises a support table, a driving gear positioned at the lower part in the support table, a transmission gear engaged above the driving gear, and a reduction gear engaged above the transmission gear; pressing cylinders are inserted into the positions, corresponding to the transmission gears, of the two sides of the driving gear, pressing plates are fixed to the sides, close to the transmission gears, of the pressing cylinders, and pressure springs are arranged outside the part, located between the pressing plates and the iron rings, of the circumference of the pressing cylinders in a sleeving mode. The shell is fixed to the position, corresponding to the pressing cylinder, outside the driving gear, and an iron ring is fixed to the end, located in the shell, of the pressing cylinder. When the electromagnet ring is in a power-off state, the electromagnet ring does not attract the iron ring, the pressing plate and the friction disc to be pressed on the transmission gear due to the springback effect of the pressure spring, so that the transmission gear is locked, and the stability of the transmitter in a welding state can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of positioners, in particular to a master-slave assembly of a positioner. Background Art

[0002] The positioner is a special welding auxiliary equipment, suitable for welding position shifting in rotary work to obtain the ideal processing position and welding speed. It can be used in conjunction with the operator and welding machine to form an automatic welding center, and can also be used for workpiece position shifting during manual work. The worktable rotation adopts stepless speed regulation of the inverter with high speed regulation accuracy. The remote control box can realize remote operation of the worktable, and can also be connected with the operator and welding machine control system to realize linkage operation;

[0003] The positioner in the prior art has insufficient stability when it stops rotating, which affects the accuracy of welding. Therefore, we propose a master-slave assembly of the positioner. Utility Model Content

[0004] The utility model aims to provide a master-slave assembly of a positioner to solve the problem in the prior art that the positioner in the prior art has insufficient stability when the rotation stops, thus affecting the accuracy of welding.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a master-slave assembly of a positioner, comprising a driving member, wherein the driving member comprises a support platform, a driving gear located at the lower part of the support platform, a transmission gear engaged above the driving gear, and a reduction gear engaged above the transmission gear;

[0006] A pressure cylinder is inserted into the positions corresponding to the transmission gear on both sides of the driving gear, a pressure plate is fixed on the side of the pressure cylinder close to the transmission gear, and a pressure spring is sleeved on the outer part of the circumference of the pressure cylinder located between the pressure plate and the iron ring;

[0007] The shell is fixed on the outside of the driving gear at a position corresponding to the pressure cylinder, an electromagnet ring corresponding to the position of the pressure cylinder is fixed inside the shell, and an iron ring is fixed at one end of the pressure cylinder located inside the shell.

[0008] Preferably, it further comprises a driven member located at one side of the driving member, a positioner body is provided between the driven member and the driving member, and the positioner body is fixedly connected to the reduction gear and the output end of the driven member via a connecting flange.

[0009] Preferably, a motor for driving the driving gear to rotate is installed on one side of the support platform.

[0010] Preferably, a central shaft is fixed in the middle of the transmission gear, and one end of the central shaft away from the transmission gear passes through a pressure plate, a pressure cylinder, an iron ring and an electromagnetic iron ring in sequence and is rotatably connected to the outer shell through a bearing.

[0011] Preferably, a friction disk is fixed to a side of the pressure plate close to the transmission gear.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] When the electromagnet ring is powered on, the utility model can attract the iron ring so that the entire pressure plate is close to the electromagnet ring, and the transmission gear can rotate at this time; conversely, when the electromagnet ring is powered off, due to the rebound effect of the pressure spring, the electromagnet ring no longer attracts the iron ring, and the pressure plate and the friction disk are pressed on the transmission gear, so that the transmission gear is locked, thereby ensuring the stability of the transmitter in the welding state and ensuring the welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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:

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the active part of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation of the pressing plate of the utility model;

[0018] Figure 4 It is a cutaway view of the pressing cylinder of the utility model.

[0019] In the figure: 1. Positioner body; 2. Support platform; 3. Connecting flange; 4. Motor; 5. Driving gear; 6. Housing; 7. Pressure cylinder; 8. Pressure spring; 9. Pressure plate; 10. Transmission gear; 11. Reduction gear; 12. Electromagnetic ring; 13. Iron ring; 14. Friction disc; 16. Middle shaft; 17. Follower. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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.

[0021] See also Figure 1As shown, in the embodiment of the utility model, a master-slave assembly of a positioner includes a driving part, the driving part includes a support platform 2, a driving gear 5 located at the lower part of the support platform 2, a transmission gear 10 engaged on the top of the driving gear 5, and a reduction gear 11 engaged on the top of the transmission gear 10. A motor 4 for driving the driving gear 5 to rotate is installed on one side of the support platform 2. When the motor 4 is working, the driving gear 5 can be rotated, thereby driving the transmission gear 10 to rotate, thereby causing the reduction gear 11 to rotate;

[0022] The device also includes a driven member 17 located on one side of the driving member, a positioner body 1 is provided between the driven member 17 and the driving member, the positioner body 1 is fixedly connected to the reduction gear 11 and the output end of the driven member 17 through a connecting flange 3 to achieve the displacement of the positioner body 1, and the driven member 17 has the same structure as the driving member, the difference being that the driven member 17 does not include a motor and a driving gear;

[0023] Combination Figure 2 , Figure 3 and Figure 4 As shown, a pressure cylinder 7 is inserted into the positions corresponding to the transmission gear 10 on both sides of the driving gear 5, a pressure plate 9 is fixed to the side of the pressure cylinder 7 close to the transmission gear 10, and a pressure spring 8 is sleeved on the outer part of the circumference of the pressure cylinder 7 between the pressure plate 9 and the iron ring 13. When the pressure spring 8 rebounds, it can push the pressure plate 9 so that the pressure plate 9 is pressed on the transmission gear 10. Preferably, a friction disk 14 is fixed to the side of the pressure plate 9 close to the transmission gear 10, thereby limiting the rotation of the transmission gear 10 and maintaining the stability of the positioner body 1 when it stops rotating, thereby ensuring the stability in the welding state;

[0024] Continue to refer to Figure 2 , Figure 3 and Figure 4 The device also includes a shell 6, which is fixed to the outside of the driving gear 5 at a position corresponding to the pressure cylinder 7. An electromagnet ring 12 corresponding to the position of the pressure cylinder 7 is fixed inside the shell 6. An iron ring 13 is fixed to one end of the pressure cylinder 7 located inside the shell 6. When the electromagnet ring 12 is powered on, the iron ring 13 can be attracted, so that the entire pressure plate 9 is close to the electromagnet ring 12. At this time, the transmission gear 10 can rotate. On the contrary, when the electromagnet ring 12 is powered off, due to the rebound effect of the pressure spring 8, the electromagnet ring 12 no longer attracts the iron ring 13, and the pressure plate 9 and the friction disk 14 are pressed on the transmission gear 10, so that the transmission gear 10 is locked;

[0025] A central shaft 16 is fixed to the middle of the transmission gear 10. One end of the central shaft 16 away from the transmission gear 10 passes through the pressing plate 9, the pressing cylinder 7, the iron ring 13 and the electromagnet ring 12 in sequence and is rotatably connected to the housing 6 through a bearing.

[0026] Working principle and use process of the utility model: When using the device, the motor 4 can drive the driving gear 5 to rotate, and the driving gear 5 drives the transmission gear 10 to rotate, and then drives the reduction gear 11 to rotate, so that the positioner body 1 rotates to adjust the angle;

[0027] In the welding state, when the electromagnet ring 12 is powered off, due to the rebound effect of the pressure spring 8, the electromagnet ring 12 no longer attracts the iron ring 13, and the pressure plate 9 and the friction disk 14 press on the transmission gear 10, so that the transmission gear 10 is locked, ensuring the stability of the positioner on the main body 1 during welding.

[0028] 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. A positioner master-slave assembly, comprising a driving member and an iron ring (13), characterized in that: The active component comprises a support platform (2), a driving gear (5) located at the lower part of the support platform (2), a transmission gear (10) engaged with the driving gear (5), and a reduction gear (11) engaged with the transmission gear (10). A pressure cylinder (7) is inserted into the positions corresponding to the transmission gear (10) on both sides of the driving gear (5), a pressure plate (9) is fixed to the side of the pressure cylinder (7) close to the transmission gear (10), and a pressure spring (8) is sleeved on the outer part of the circumference of the pressure cylinder (7) located between the pressure plate (9) and the iron ring (13); The outer shell (6) is fixed to a position outside the driving gear (5) corresponding to the pressure cylinder (7), an electromagnet ring (12) corresponding to the position of the pressure cylinder (7) is fixed inside the outer shell (6), and an iron ring (13) is fixed to one end of the pressure cylinder (7) located inside the outer shell (6).

2. A positioner master-slave assembly according to claim 1, characterized in that: It also includes a driven member (17) located on one side of the driving member, a positioner body (1) is provided between the driven member (17) and the driving member, and the positioner body (1) is fixedly connected to the reduction gear (11) and the output end of the driven member (17) via a connecting flange (3).

3. A positioner master-slave assembly according to claim 1, characterized in that: A motor (4) for driving the driving gear (5) to rotate is installed on one side of the support platform (2).

4. A positioner master-slave assembly according to claim 1, characterized in that: A central shaft (16) is fixed in the middle of the transmission gear (10), and one end of the central shaft (16) away from the transmission gear (10) passes through the pressing plate (9), the pressing cylinder (7), the iron ring (13) and the electromagnetic iron ring (12) in sequence and is rotatably connected to the housing (6) through a bearing.

5. A positioner master-slave assembly according to claim 1, characterized in that: A friction disc (14) is fixed on one side of the pressure plate (9) close to the transmission gear (10).

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