Near-circle long rod forge piece polishing device

Abstract

The utility model discloses a polishing device for a nearly-circular long-rod forge piece, which relates to the technical field of polishing and comprises a workpiece placing table, a polishing device and a polishing device. A grinding head retraction feeding mechanism is fixedly mounted on the lifting adjusting mechanism; a grinding head horizontal feeding mechanism is further mounted on the grinding head retraction feeding mechanism; the grinding head comprises a base; a supporting seat is fixedly mounted on the top surface of the base; a servo motor is fixedly mounted on the supporting seat; a driving wheel is mounted at the output end of the servo motor in a transmission manner; the driving wheel is in transmission connection with the driven wheel through an abrasive belt; the driven wheel is arranged at the bottom end of the cantilever, and the top end of the cantilever is obliquely and fixedly installed on the bottom face of the supporting base. The device is used for grinding and polishing the outer surface of the hanging ring, the grinding head moves in three directions on the device, the workpiece rotates, the roughness Ra value of the surface of the workpiece is reduced through friction between the polishing grinding material and the surface of the workpiece, and the device is high in practicability, simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding, in particular to a grinding device for a nearly round long rod forging. Background Art

[0002] The two ends of the single-arm lifting ring are forged by die, and the middle rod is free forged and drawn. The cross section is a polygonal shape that is approximately circular. For workpieces ≤6m, it can be processed by machine tools; for workpieces >6m, it is generally polished by employees manually, which has the disadvantages of low efficiency and long time of occupying human resources. On the one hand, it cannot meet the needs of large-scale production, and on the other hand, it is difficult to staff.

[0003] Therefore, it is urgent to design a nearly circular long rod forging grinding device to replace manual grinding. Utility Model Content

[0004] The utility model aims to provide a nearly round long rod forging grinding device to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above purpose, the utility model provides the following solution: The utility model provides a nearly round long rod forging grinding device, comprising:

[0006] A workpiece placement table, on which a workpiece is placed;

[0007] A lifting and lowering adjustment mechanism, on which a grinding head retracting and feeding mechanism is fixedly mounted; on which a grinding head horizontal feeding mechanism is also mounted; the grinding head retracting and feeding mechanism moves the grinding head in a direction parallel to the workpiece, and the grinding head horizontal feeding mechanism moves the grinding head in a direction perpendicular to the workpiece;

[0008] The grinding head includes a base, a support seat is fixedly installed on the top surface of the base; a servo motor is fixedly installed on the support seat; a driving wheel is installed on the output end of the servo motor; the driving wheel and the driven wheel are connected through a sanding belt transmission; the driven wheel is arranged at the bottom end of the cantilever, and the top end of the cantilever is fixedly installed on the bottom surface of the support seat at an angle.

[0009] The driven wheel is rotatably mounted on the support arm via a rotating shaft, the support arm is drivingly connected to the abrasive belt tensioning cylinder, and the abrasive belt tensioning cylinder is fixedly mounted on the bottom end of the cantilever.

[0010] A grinding head constant pressure floating mechanism is also installed between the base and the support seat; the grinding head constant pressure floating mechanism includes a floating cylinder and a spring; the bottom of the floating cylinder and the bottom of the spring are respectively arranged at two opposite ends of the top surface of the base; the bottom of the floating cylinder and the top of the spring are respectively installed at both ends of the support seat.

[0011] A pin-type force sensor is also installed at the driven wheel.

[0012] The grinding head horizontal feeding mechanism includes a horizontal guide rail, on which at least two rollers are slidably arranged, the two rollers are respectively arranged at both ends of the horizontal guide rail and connected by a transmission rod; the transmission rod is connected to the reducer for transmission; the two rollers are installed in the beam frame; the base is fixedly installed on the top of the beam frame through a support rod.

[0013] Guide wheels are also installed on the horizontal guide rail.

[0014] The grinding head retraction feeding mechanism comprises a horizontal platform, the horizontal guide rail is fixedly installed on the top of the horizontal platform; a slide rail is fixedly installed on the bottom of the horizontal platform; and the slide rail is slidably arranged on the linear module.

[0015] The lifting and adjusting mechanism comprises a supporting platform, the linear module is fixedly mounted on the top surface of the supporting platform; a plurality of lifting and telescopic columns are fixedly mounted on the bottom surface of the supporting platform; the lifting and telescopic columns are drivingly connected to the lifting motor.

[0016] The utility model discloses the following technical effects: the device is mainly used for grinding and polishing the outer surface of the hanging ring, and the grinding is performed by abrasive belt according to the processing purpose, and has the characteristics of high production efficiency, less auxiliary time, simple operation, safety, and environmental friendliness. The grinding head moves in three directions on the equipment, and the workpiece performs a rotational motion. The surface roughness Ra value of the workpiece is reduced through the friction between the polishing abrasive and the workpiece surface. The device is highly practical, simple in structure, easy to operate, and saves labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 This is the front view of the overall structure;

[0019] Figure 2 It is the side view of the overall structure;

[0020] Figure 3 This is the front view of the grinding head structure;

[0021] Figure 4 This is the axonometric view of the grinding head structure;

[0022] Figure 5 It is a schematic diagram of the grinding head horizontal feeding mechanism;

[0023] Figure 6 It is a schematic diagram of the lifting and lowering adjustment mechanism;

[0024] Figure 7 It is a schematic diagram of the grinding head retracting feeding mechanism;

[0025] Among them, 1. grinding head; 2. grinding head horizontal feed mechanism; 3. grinding head retraction feed mechanism; 4. lifting and lowering adjustment mechanism; 5. workpiece placement table; 11. grinding head constant pressure floating mechanism; 12. base; 13. support seat; 14. cantilever; 15. servo motor; 16. driving wheel; 17. driven wheel; 18. sanding belt tensioning cylinder; 111. floating cylinder; 112. spring; 113. pin-type force sensor; 21. horizontal guide rail; 22. roller; 23. beam frame; 24. reducer; 25. transmission rod; 26. guide wheel; 31. horizontal platform; 32. slide rail; 33. linear module; 41. elevator; 42. lifting and telescopic column; 43. support platform. DETAILED DESCRIPTION

[0026] 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.

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] The utility model provides a nearly round long rod forging grinding device, comprising:

[0029] a workpiece placement table 5, on which a workpiece is placed;

[0030] A lifting adjustment mechanism 4, on which a grinding head retracting and feeding mechanism 3 is fixedly installed; a grinding head horizontal feeding mechanism 2 is also installed on the grinding head retracting and feeding mechanism 3; the grinding head retracting and feeding mechanism 3 moves the grinding head 1 in a direction parallel to the workpiece, and the grinding head horizontal feeding mechanism 2 moves the grinding head 1 in a direction perpendicular to the workpiece;

[0031] The grinding head 1 includes a base 12, on the top surface of which a support seat 13 is fixedly mounted; a servo motor 15 is fixedly mounted on the support seat 13; a driving wheel 16 is installed on the output end of the servo motor 15; the driving wheel 16 is connected to the driven wheel 17 through a sanding belt transmission; the driven wheel 17 is arranged at the bottom end of the cantilever 14, and the top end of the cantilever 14 is fixedly mounted on the bottom surface of the support seat 13 at an angle.

[0032] The driven wheel 17 is rotatably mounted on the support arm via a rotating shaft. The support arm is transmission-connected to the abrasive belt tensioning cylinder 18 . The abrasive belt tensioning cylinder 18 is fixedly mounted on the bottom end of the cantilever 14 .

[0033] A grinding head constant pressure floating mechanism 11 is also installed between the base 12 and the support seat 13; the grinding head constant pressure floating mechanism 11 includes a floating cylinder 111 and a spring 112; the bottom of the floating cylinder 111 and the bottom of the spring 112 are respectively arranged at two opposite ends of the top surface of the base 12; the bottom of the floating cylinder 111 and the top of the spring 112 are respectively installed at both ends of the support seat 13.

[0034] A pin-type force sensor 113 is also installed at the driven wheel 17 .

[0035] The grinding head horizontal feeding mechanism 2 includes a horizontal guide rail 21, on which at least two rollers 22 are slidably arranged, and the two rollers 22 are respectively arranged at both ends of the horizontal guide rail 21 and connected by a transmission rod 25; the transmission rod 25 is transmission-connected to a reducer 24; the two rollers 22 are installed in a beam frame 23; and a base 12 is fixedly installed on the top of the beam frame 23 by a support rod.

[0036] A guide wheel 26 is also mounted on the horizontal guide rail 21 .

[0037] The grinding head retracting and feeding mechanism 3 comprises a horizontal platform 31 , a horizontal guide rail 21 is fixedly installed on the top of the horizontal platform 31 ; a slide rail 32 is fixedly installed on the bottom of the horizontal platform 31 ; and the slide rail 32 is slidably arranged on the linear module 33 .

[0038] The lifting adjustment mechanism 4 includes a support platform 43 , on the top of which the linear module 33 is fixedly mounted; on the bottom of the support platform 43 , a plurality of lifting telescopic columns 42 are fixedly mounted; and the lifting telescopic columns 42 are drivingly connected to the lifting motor 41 .

[0039] In one embodiment of the present invention, Figure 1 As shown, there are two groups of grinding heads 1 symmetrically arranged. According to the grinding requirements of the workpiece and the process characteristics, we choose abrasive belts as the grinding material. The mechanism has two groups of grinding heads 1. The function of the grinding head 1 is to support the abrasive belt and drive the abrasive belt to rotate at high speed to grind the workpiece; the power of the servo motor 15 is to directly drive the abrasive belt to rotate at high speed to grind the workpiece through the active wheel 16; the grinding head has a constant pressure floating function.

[0040] In one embodiment of the utility model, the grinding head constant pressure floating mechanism 11 functions to enable the grinding head to always press on the workpiece surface during the grinding process without being affected by changes in the workpiece diameter (ovality). It is composed of a floating cylinder 111, a spring 112, a pin-type force sensor 113, etc.

[0041] Furthermore, the grinding head constant pressure floating mechanism 11 also includes an electrical proportional valve, which is an electrical conversion element that can convert the input analog signal into a corresponding pressure value to control the grinding pressure output by the cylinder. The pin-type force sensor 113 at the rotating shaft of the driven wheel 17 is a two-dimensional pin-type force sensor that can simultaneously detect the tension of the abrasive belt and the contact pressure between the contact wheel and the workpiece. The sensor is a measuring element that transmits the collected signal to the upper machine position to calculate the actual grinding pressure.

[0042] During the grinding process, the first step is to set the expected grinding pressure value. When the expected pressure value is greater than (less than) the actual pressure, the constant pressure control system controls the opening of the electrical proportional valve through analog output, thereby increasing (decreasing) the output pressure of the floating cylinder, and obtains the current value of the grinding pressure through the pin-type force sensor 113, which is fed back to the control system for further calculation and output control until the difference between the expected pressure and the actual pressure is less than a certain value, and the constant pressure system stops working, realizing the constant pressure automatic grinding of the workpiece. At the same time, the expected grinding pressure can be adjusted at any time to achieve variable pressure grinding.

[0043] In one embodiment of the utility model, the grinding head retracting feeding mechanism 3 moves the grinding head 1 in a direction parallel to the workpiece, and the grinding head horizontal feeding mechanism 2 moves the grinding head 1 in a direction perpendicular to the workpiece;

[0044] In one embodiment of the present invention, the lifting and adjusting mechanism 4 is used to adjust the grinding head 1 up and down to adapt to different workpiece diameters.

[0045] In one embodiment of the present invention, the workpiece placement table 5 is used to provide the rotational motion required for the workpiece when grinding the workpiece, and is composed of a motor, a reducer, a rubber wheel, and an axial stopper.

[0046] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do 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 should not be understood as a limitation on the present invention.

[0047] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A grinding device for a nearly round long rod forging, characterized in that: include: A workpiece placement table (5), on which a workpiece is placed; A lifting and lowering adjustment mechanism (4), wherein a grinding head retracting and feeding mechanism (3) is fixedly mounted on the lifting and lowering adjustment mechanism (4); a grinding head horizontal feeding mechanism (2) is also mounted on the grinding head retracting and feeding mechanism (3); the grinding head retracting and feeding mechanism (3) moves the grinding head (1) in a direction parallel to the workpiece, and the grinding head horizontal feeding mechanism (2) moves the grinding head (1) in a direction perpendicular to the workpiece; The grinding head (1) comprises a base (12), a support seat (13) being fixedly mounted on the top surface of the base (12); a servo motor (15) being fixedly mounted on the support seat (13); a driving wheel (16) being transmission-mounted on the output end of the servo motor (15); the driving wheel (16) and the driven wheel (17) being connected via a sanding belt transmission; the driven wheel (17) being arranged at the bottom end of a cantilever (14), and the top end of the cantilever (14) being obliquely fixedly mounted on the bottom surface of the support seat (13).

2. A grinding device for a nearly round long rod forging according to claim 1, characterized in that: The driven wheel (17) is rotatably mounted on the support arm via a rotating shaft. The support arm is transmission-connected to the sand belt tensioning cylinder (18). The sand belt tensioning cylinder (18) is fixedly mounted on the bottom end of the cantilever (14).

3. A grinding device for a nearly round long rod forging according to claim 2, characterized in that: A grinding head constant pressure floating mechanism (11) is also installed between the base (12) and the support base (13); the grinding head constant pressure floating mechanism (11) comprises a floating cylinder (111) and a spring (112); the bottom of the floating cylinder (111) and the bottom of the spring (112) are respectively arranged at two opposite ends of the top surface of the base (12); the bottom of the floating cylinder (111) and the top of the spring (112) are respectively installed at two ends of the support base (13).

4. A grinding device for a nearly round long rod forging according to claim 3, characterized in that: A pin-type force sensor (113) is also installed at the driven wheel (17).

5. The grinding device for a nearly round long rod forging according to claim 1, characterized in that: The grinding head horizontal feeding mechanism (2) comprises a horizontal guide rail (21), on which at least two rollers (22) are slidably arranged, the two rollers (22) are respectively arranged at two ends of the horizontal guide rail (21) and are connected via a transmission rod (25); the transmission rod (25) is transmission-connected to a reducer (24); the two rollers (22) are installed in a beam frame (23); and the base (12) is fixedly installed on the top of the beam frame (23) via a support rod.

6. A grinding device for a nearly round long rod forging according to claim 5, characterized in that: A guide wheel (26) is also installed on the horizontal guide rail (21).

7. The grinding device for a nearly round long rod forging according to claim 5, characterized in that: The grinding head retraction feeding mechanism (3) comprises a horizontal platform (31), the horizontal guide rail (21) is fixedly installed on the top of the horizontal platform (31); a slide rail (32) is fixedly installed on the bottom of the horizontal platform (31); and the slide rail (32) is slidably arranged on the linear module (33).

8. The grinding device for a nearly round long rod forging according to claim 7, characterized in that: The lifting and adjusting mechanism (4) comprises a supporting platform (43), the linear module (33) being fixedly mounted on the top surface of the supporting platform (43); a plurality of lifting and telescopic columns (42) being fixedly mounted on the bottom surface of the supporting platform (43); and the lifting and telescopic columns (42) being drivingly connected to the lifting motor (41).

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