Bearing device of polishing head

Abstract

The utility model relates to a bearing device for polishing heads, which comprises a portal frame and a mounting frame connected to the portal frame in a sliding manner, a plurality of polishing heads are transversely arranged on the mounting frame, and a supporting part for providing vertical upward supporting force for the mounting frame is fixedly mounted on the portal frame. The end of the supporting component abuts against the mounting frame and is adjacent to the polishing head. Compared with a balancing weight, a chain wheel and a chain in the prior art, the structure adopting the supporting component is simpler, the production cost is lower, and the maintenance is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing machines, in particular to a bearing device for a polishing head. Background Art

[0002] Many products require grinding, polishing and other processes during the production process. As companies have higher and higher requirements for production and processing efficiency, existing grinding and polishing equipment are equipped with multiple stations to improve work efficiency. For example, the polishing robot is a multi-station equipment that requires multiple stations to move synchronously.

[0003] A Chinese patent with publication number CN207326696U discloses a lifting and rotating mechanism for the polishing head of a polishing machine. Its specification and drawings disclose that "the counterweight mechanism is installed in the inner bags on both sides of the frame, including a counterweight connecting mechanism and a counterweight block; the counterweight block is installed in the inner bag of the frame and connected to the counterweight connecting mechanism; the counterweight connecting mechanism is connected to the counterweight block and the connecting mechanism to balance the entire motion mechanism." The balance of the connecting mechanism is maintained by the above-mentioned counterweight block and counterweight connecting mechanism (combination of material strip wheels and chains). Its structure is relatively complex, and the production cost and subsequent maintenance cost are higher. Utility Model Content

[0004] The purpose of the utility model is to provide a bearing device for a polishing head, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a carrying device for a polishing head, including a gantry and a mounting frame slidably connected to the gantry, a plurality of polishing heads are arranged horizontally on the mounting frame, and a supporting component for providing vertical upward supporting force on the mounting frame is fixedly installed on the gantry, and an end of the supporting component abuts against the mounting frame and is adjacent to the polishing head.

[0006] Compared with the counterweight, sprocket and chain in the prior art, the structure of the support component is simpler, the production cost is lower, and the maintenance is more convenient and quick.

[0007] The preferred technical solution of the utility model is that the mounting frame includes a mounting plate slidably connected to one side of the gantry, and the mounting plate is fixedly connected with connecting rods of the same number as the polishing heads and arranged parallel to each other, and the ends of the connecting rods are fixedly connected with a fixing plate, and the fixing plate is located on the other side of the gantry; the mounting plate and the fixing plate are arranged parallel to each other.

[0008] According to the preferred technical solution of the utility model, a driving component is also provided on the mounting frame, and the driving component includes reducers fixedly mounted on the fixed plate and having the same number as the polishing heads, and the input ends of two adjacent reducers are transmission connected via a connecting shaft; a first driving source is fixedly mounted on one end of the fixed plate, and the output end of the first driving source is connected to the input end of the adjacent reducer; a fixed shaft is fixedly connected to the output end of each reducer, and the end of the fixed shaft is fixedly connected to the polishing head through a connecting rod.

[0009] According to the preferred technical solution of the utility model, a connecting flange is fixedly mounted on the end of the fixed shaft, and the polishing head is fixedly mounted on the connecting flange.

[0010] According to the preferred technical solution of the utility model, a mounting hole is provided in the connecting rod, and the fixed shaft is located in the mounting hole and is connected via a rolling bearing.

[0011] According to the preferred technical solution of the utility model, the gantry comprises two columns, a first support rod and a second support rod are arranged in parallel between the two columns, the distance between the first support rod and the second support rod is the distance moved by the mounting frame; the supporting component is vertically mounted on the second support rod.

[0012] According to the preferred technical solution of the utility model, the gantry is also provided with a power component that drives the device to reciprocate in the vertical direction; the power component includes a second driving source fixedly installed on the first support rod, a driving screw rod is fixedly connected to the output end of the second driving source, the end of the driving screw rod is rotatably connected to the second support rod, and an adaptive driving nut is sleeved on the driving screw rod; the driving nut is fixedly installed in the mounting frame and is located between two adjacent connecting rods at the center position of the mounting frame.

[0013] According to the preferred technical solution of the utility model, the power component comprises a rack fixedly mounted on two upright posts and a second driving source fixedly mounted on a mounting frame, and a gear meshingly connected to the rack is fixedly mounted on the output end of the second driving source.

[0014] In addition to the technical problems solved by the present invention, the technical features that constitute the technical solution, and the advantages brought by the technical features of the technical solution described above, other technical problems that can be solved by the present invention, other technical features included in the technical solution, and the advantages brought by these technical features will be further described in detail in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a combined stereoscopic schematic diagram of the utility model and a polishing head.

[0016] Figure 2 It is a three-dimensional schematic diagram of the utility model from left and right viewing angles.

[0017] Figure 3It is a distribution diagram of the supporting components and the power components of the utility model.

[0018] Figure 4 This is another distribution diagram of the support components and the power components of the utility model.

[0019] Explanation of the figure numbers: 01. Gantry, 02. Mounting frame, 03. Polishing head, 04. Mounting plate, 05. Connecting rod, 06. Fixing plate, 07. Reducer, 08. Connecting shaft, 09. First driving source, 10. Connecting flange, 11. Support component, 12. Linear guide rail, 13. Column, 14. First supporting rod, 15. Second supporting rod, 16. Second driving source, 17. Driving screw. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] like Figure 1-4 As shown, a polishing head bearing device of the utility model has a gantry 01 fixed on a building or an external base, a mounting frame 02 is arranged on the gantry 01, and a plurality of polishing heads 03 are arranged horizontally on the mounting frame 02. Of course, one polishing head 03 can also be arranged on the mounting frame 02. The gantry 01 is provided with a power component that drives the mounting to move back and forth in the vertical direction (Z axis).

[0022] When a plurality of polishing heads 03 are arranged on the mounting frame 02, a driving component for synchronously driving the plurality of polishing heads 03 to rotate is provided on the mounting frame 02, so that each polishing head 03 rotates around the X axis (e.g. Figure 1 shown).

[0023] During use, at the preparation stage, the power component drives the polishing head 03 to move to the set position, which is convenient for the operator to pick up and place the workpiece. When the polishing head 03 starts to work, the power component drives the mounting frame 02 to move in the vertical direction. Thus, the workpiece is polished in the vertical direction. The polishing head 03 is rotated by the driving component, so that the polishing head 03 can polish the grooves or protrusions on the workpiece.

[0024] The mounting frame 02 includes a mounting plate 04 disposed on one side of the gantry 01, and the mounting plate 04 is slidably connected to the gantry 01 through a linear guide rail 12, so that the mounting frame 02 is slidably connected to the gantry 01. The mounting plate 04 is fixedly connected with the same number of connecting rods 05 as the polishing heads 03 and arranged parallel to each other by fasteners or welding, and the ends of the connecting rods 05 are fixedly connected with a fixing plate 06 by welding or fasteners, and the fixing plate 06 is located on the other side of the gantry 01. The mounting plate 04 and the fixing plate 06 are arranged parallel to each other. The above-mentioned driving component is arranged on the fixing plate 06. Since a plurality of polishing heads 03 are arranged on the mounting frame 02, and the driving component is arranged on the fixing plate 06, when the mounting plate 04 is connected to the gantry 01, the mounting frame 02 achieves a preliminary balance.

[0025] like Figure 2 As shown, the driving component includes a reducer 07 fixedly mounted on the fixed plate 06 by fasteners and having the same number as the polishing head 03, and the reducer 07 is preferably an RV series worm gear reducer. Multiple reducers 07 are arranged in a straight line and fixedly mounted on the fixed plate 06 by fasteners, and the input ends of two adjacent reducers 07 are connected by a connecting shaft 08. The connecting shaft 08 is connected to the input and output ends of the reducer 07 by a coupling. A first driving source 09 is fixedly mounted on one end of the fixed plate 06, and the first driving source 09 is a servo motor or a reduction motor. The output end of the first driving source 09 is connected to the input end of the adjacent reducer 07 by a coupling. A fixed shaft is fixedly connected to the output end of each reducer 07, and the end of the fixed shaft passes through the above-mentioned connecting rod 05 and extends outside the mounting plate 04. A connecting flange 10 is fixedly mounted on the end of the fixed shaft, and the polishing head 03 is fixedly mounted on the connecting flange 10. When the first driving source 09 is working, it drives each reducer 07 to work synchronously, and the fixed shaft is driven to rotate by the work of the reducer 07, thereby driving the polishing head 03 on the fixed shaft to rotate.

[0026] A mounting hole is provided in the connecting rod 05, and the fixed shaft is located in the mounting hole and connected via a rolling bearing. The rolling bearing supports the fixed shaft, so that the weight of the polishing head 03 is transferred to the mounting frame 02 via the rolling bearing, thereby preventing the fixed shaft from bending during long-term use.

[0027] Since a plurality of polishing heads 03 are arranged on the mounting plate 04 of the mounting frame 02, and the driving component is fixedly mounted on the fixing plate 06 of the mounting frame 02, the center of gravity of the assembly formed by the mounting frame 02, the polishing head 03 and the driving component is located outside the mounting frame 02. However, the mounting plate 04 of the mounting frame 02 is slidably connected to the gantry 01. As a result, the center of gravity of the assembly formed by the mounting frame 02, the polishing head 03 and the driving component is not on the same plane as the connection between the mounting frame 02 and the gantry 01. As a result, the mounting frame 02 squeezes the linear guide 12 and the power component. Long-term use can easily cause the drive screw 17 and the power component to bend and deform, making the power component and the linear guide 12 unusable.

[0028] Therefore, a support component 11 is fixedly installed on the gantry 01 to provide a vertical upward support force on the mounting frame 02 to offset the pressing force caused by gravity. This prevents the mounting frame 02 from squeezing the linear guide 12 and the power components. This increases the service life of the linear guide 12 and the power components. The support component 11 has a simpler structure than the counterweight, sprocket and chain in the prior art. The production cost is lower and the maintenance is more convenient and quick. The support component 11 is in the same plane as the center line of the mounting frame 02, that is, it is in the same plane as the center line of the mounting plate 04 (such as Figure 4 The same function can also be achieved by making the center lines of the support component 11 and the mounting frame 02 not be in the same plane (as shown). Figure 3 The supporting member 11 is a nitrogen pump or a spring, and the supporting member 11 is preferably a nitrogen pump. The end of the supporting member 11 abuts against the mounting frame 02 and is adjacent to the polishing head 03. Preferably, the supporting member 11 abuts against the above-mentioned mounting plate 04.

[0029] The gantry 01 includes two columns 13, between which a first support rod 14 and a second support rod 15 are arranged in parallel, the first support rod 14 is located at the top of the column 13, and the second support rod 15 is located directly below the first support rod 14, and the distance between the first support rod 14 and the second support rod 15 is the distance moved by the mounting frame 02 under the action of the power component. One side of the second support rod 15 extends toward the mounting plate 04 and is located outside the mounting plate 04, and the support component 11 is vertically mounted on the second support rod 15. It should be noted that the support component 11 can be arranged on the first support rod 14. The tension generated by the support component 11 can produce the same effect.

[0030] The power component includes a second driving source 16 fixedly mounted on the first support rod 14, and the second driving source 16 is a servo motor. The output end of the second driving source 16 is vertically downward, and a driving screw 17 is fixedly connected to the output end of the second driving source 16. The end of the driving screw 17 is rotatably connected to the second support rod 15. By fixing a rolling bearing or a mounting bearing on the second support rod 15, the driving screw 17 is connected thereto, thereby realizing the rotatable connection between the driving screw 17 and the second support rod 15. An adapted driving nut is sleeved on the driving screw 17. The driving nut is fixedly mounted in the mounting frame 02 and is located between two adjacent connecting rods 05 at the center of the mounting frame 02. The driving screw 17 is driven to rotate by the second driving source 16. The mounting frame 02 moves up and down along the linear guide rail 12 by the cooperation of the driving screw 17 and the driving nut.

[0031] The second embodiment of the power component includes a rack fixedly mounted on two uprights 13 and a second driving source 16 fixedly mounted on the mounting frame 02, and a gear meshing with the rack is fixedly mounted on the output end of the second driving source 16. The mounting frame 02 can also move up and down along the linear guide rail 12 through the cooperation between the gear and the rack.

[0032] It should be noted that, for the sake of clarity of description, the fasteners described in this application are any one of screws, bolts, and screws.

[0033] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0034] The above implementation modes are merely descriptions of the preferred implementation modes 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 engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A polishing head bearing device, comprising a gantry and a mounting frame slidably connected to the gantry, characterized in that: A plurality of polishing heads are arranged transversely on the mounting frame, and a supporting component for providing vertical upward supporting force for the mounting frame is fixedly installed on the gantry frame, and an end of the supporting component abuts against the mounting frame and is adjacent to the polishing head.

2. The carrying device of the polishing head according to claim 1, characterized in that: The mounting frame includes a mounting plate slidably connected to one side of the gantry, and the mounting plate is fixedly connected with connecting rods of the same number as the polishing heads and arranged parallel to each other, and the ends of the connecting rods are fixedly connected with fixing plates, and the fixing plates are located on the other side of the gantry; the mounting plate and the fixing plate are arranged parallel to each other.

3. The carrying device of the polishing head according to claim 2, characterized in that: A driving component is also provided on the mounting frame, and the driving component includes a reducer fixedly mounted on the fixed plate, the same number of which is the same as the polishing head, and the input ends of two adjacent reducers are connected by a connecting shaft; a first driving source is fixedly mounted on one end of the fixed plate, and the output end of the first driving source is connected to the input end of the adjacent reducer; a fixed shaft is fixedly connected to the output end of each reducer, and the end of the fixed shaft is fixedly connected to the polishing head through a connecting rod.

4. The carrying device of the polishing head according to claim 3, characterized in that: A connecting flange is fixedly mounted on the end of the fixed shaft, and the polishing head is fixedly mounted on the connecting flange.

5. The carrying device of the polishing head according to claim 4, characterized in that: A mounting hole is arranged in the connecting rod, and the fixed shaft is located in the mounting hole and is connected via a rolling bearing.

6. The carrying device of the polishing head according to claim 1, characterized in that: The gantry comprises two columns, between which a first support rod and a second support rod are arranged in parallel, and the distance between the first support rod and the second support rod is the distance moved by the mounting frame; the supporting component is vertically mounted on the second support rod.

7. The carrying device of the polishing head according to claim 6, characterized in that: The gantry is also provided with a power component that drives the installation to move back and forth in the vertical direction; the power component includes a second driving source fixedly installed on the first support rod, a driving screw rod is fixedly connected to the output end of the second driving source, the end of the driving screw rod is rotatably connected to the second support rod, and an adaptive driving nut is sleeved on the driving screw rod; the driving nut is fixedly installed in the mounting frame and is located between two adjacent connecting rods at the center position of the mounting frame.

8. The carrying device for the polishing head according to claim 6, characterized in that: The power component comprises racks fixedly mounted on two upright posts and a second driving source fixedly mounted on a mounting frame, and a gear meshing with the racks is fixedly mounted on an output end of the second driving source.

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