A structure for bearing and guiding a vibration table

Abstract

The present invention discloses a structure for bearing and guiding a vibration table in the field of vibration tables, comprising a support frame, a magnetic steel ring and a connecting assembly, wherein the support frame is a U-shaped structure, a magnetic steel ring is arranged inside the support frame, the magnetic steel ring is connected to the support frame by a connecting assembly, the support frame and the magnetic steel ring are connected by the connecting assembly, and a lower pole plate is arranged at the bottom of the magnetic steel ring. The present invention has a simple structure and is easy to operate, and can be fine-tuned by vertically placing moving parts, and the vibration table does not need to be turned over for maintenance and installation, which saves time and improves work efficiency, solves the problem of installing guides and air springs by turning over the vibration table during the installation of moving parts, separates the guide from the bearing, has a simpler structure, and is more convenient and reliable to install and maintain. Such a guide and bearing structure can achieve correct guide and bearing without turning over the table body, which greatly simplifies the installation and maintenance of moving parts.

Description

Technical Field

[0001] The invention relates to the field of vibration tables, in particular to a bearing and guiding structure of a vibration table. Background Art

[0002] The electric vibration table uses upper and lower guides, i.e. rocker arms, linear bearings or hydrostatic bearings, to constrain the remaining degrees of freedom of translation and rotation of the moving parts and realize their translation in the Z direction; and the air spring, which is used as a carrier for the moving parts, needs to put the moving parts into the magnetic steel, and then turn the vibration table to a horizontal state, so that it can be firmly connected to the lower guide shaft through screw connection, and then turn it back to a vertical state after the air spring and air chamber are installed. Similarly, when disassembling and repairing moving parts, it is also necessary to turn it to a horizontal state first, remove the air chamber and air spring in sequence, and then turn it back to a vertical state before the moving parts can be taken out.

[0003] This installation and operation is troublesome. In a horizontal state, the moving parts sag as a whole due to gravity, thus affecting the performance indicators of the vibration table. In addition, maintenance personnel need to undergo a period of training and have a certain amount of experience before they can be competent for related installation and maintenance work. Therefore, those skilled in the art provide a vibration table bearing and guiding structure to solve the problems raised in the above background technology. Summary of the invention

[0004] The object of the present invention is to provide a structure for supporting and guiding a vibration table, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A structure for bearing and guiding a vibration table comprises a support frame, a magnetic steel ring and a connecting assembly, wherein the support frame is a U-shaped structure, a magnetic steel ring is arranged inside the support frame, the magnetic steel ring and the support frame are connected by a connecting assembly, the support frame and the magnetic steel ring are connected by the connecting assembly, a lower pole plate is arranged at the bottom of the magnetic steel ring, an exhaust hood is arranged below the lower pole plate, a central magnetic pole is arranged inside the magnetic steel ring, a moving component is arranged above the central magnetic pole, a bearing seat is arranged inside the moving component, a guide shaft connected to the central magnetic pole is arranged inside the bearing seat, a spring seat is arranged between the magnetic steel ring and the moving assembly, and an air spring is arranged above the spring seat.

[0007] As a further solution of the present invention: the guide shaft is interference-connected with the center magnetic pole, the bearing seat is connected to the moving part by screws, the bearing seat is slidingly connected to the guide shaft, and the bearing seat and the guide shaft cooperate to provide guidance for the movement of the moving part.

[0008] As a further solution of the present invention: the spring seat is fixedly installed inside the central magnetic pole, the air spring is connected to the moving part and the spring seat by clamping, and the air spring can provide an elastic force for the moving part.

[0009] As a further solution of the present invention: there are four air springs and spring seats, and the air springs and spring seats are evenly distributed along the circumferential direction of the moving part. The air spring is connected to the upper part of the moving part so that the air spring is located in the middle of the adjacent ribs. Four air springs are used to form a group, and the air circuit is connected in series outside. The guide shaft is installed in the bearing seat and fixed on the moving part.

[0010] As a further solution of the present invention: there are four bearing seats and guide shafts, and the guide shafts and bearing seats are evenly distributed along the circumference of the moving part, and the guide shafts and air springs are arranged at intervals. The guide shafts and bearing seats are arranged to provide guidance for the movement of the moving part, and the upper guide constraint is changed from an intermediate constraint to four guides evenly distributed along the circumferential direction. This structure is particularly suitable for vibration equipment with larger moving parts. It not only meets the constraints but also improves the performance of the vibration table by dispersing the constraints to improve the uniformity of the table surface and reduce the lateral vibration ratio. Such a guiding and bearing structure can achieve correct guiding and bearing without flipping the table body, which greatly simplifies the installation and maintenance of the moving parts.

[0011] As a further solution of the present invention: the exhaust hood is connected to the lower pole plate by screws, and the lower pole plate is connected to the magnetic steel ring by bolts.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention has a simple structure and is easy to operate. The moving parts can be placed vertically for fine adjustment. The vibration table does not need to be turned over for maintenance and installation, which saves time and improves work efficiency. The work of installing the guide and air spring by turning over the vibration table during the installation of the moving parts is solved, and the guide and the load are separated. The structure is simpler, and the installation and maintenance are more convenient and reliable.

[0014] 2. The present invention changes the constraint of the upper guide from the middle constraint to four uniformly distributed guides along the circumferential direction. This structure is particularly suitable for vibration equipment with larger moving parts. It not only meets the constraint but also improves the performance of the vibration table by means of dispersed constraints to improve the uniformity of the table surface and reduce the lateral vibration ratio. Such a guiding and bearing structure can achieve correct guiding and bearing without flipping the table body, which greatly simplifies the installation and maintenance of moving parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention.

[0016] In the figure: 1. support frame; 2. lower pole plate; 3. exhaust hood; 4. connecting assembly; 5. magnetic steel ring; 6. moving part; 7. air spring; 8. spring seat; 9. bearing seat; 10. guide shaft. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1 In the embodiment of the present invention, a structure for bearing and guiding a vibration table includes a support frame 1, a magnetic steel ring 5 and a connecting assembly 4. The support frame 1 is a U-shaped structure. The magnetic steel ring 5 is arranged inside the support frame 1. The magnetic steel ring 5 and the support frame 1 are connected with the connecting assembly 4. The support frame 1 and the magnetic steel ring 5 are connected through the connecting assembly 4. The bottom of the magnetic steel ring 5 is provided with a lower pole plate 2, and an exhaust hood 3 is arranged below the lower pole plate 2. A central magnetic pole is arranged inside the magnetic steel ring 5, and a moving component 6 is arranged above the central magnetic pole. A bearing seat 9 is arranged inside the moving component 6, and a guide shaft 10 connected to the central magnetic pole is arranged inside the bearing seat 9. A spring seat 8 is arranged between the magnetic steel ring 5 and the moving assembly, and an air spring 7 is arranged above the spring seat 8. .

[0019] Among them, the guide shaft 10 is interference fit connected with the center magnetic pole, the bearing seat 9 is connected with the moving part 6 by screws, the bearing seat 9 is slidingly connected with the guide shaft 10, the bearing seat 9 cooperates with the guide shaft 10 to provide guidance for the movement of the moving part 6, the spring seat 8 is fixedly installed inside the center magnetic pole, the air spring 7 is connected with the moving part 6 and the spring seat 8 by clamping, the air spring 7 can provide an elastic force for the moving part 6, there are four air springs 7 and spring seats 8, and the air springs 7 and spring seats 8 are evenly distributed along the circumferential direction of the moving part 6, the air spring 7 is connected to the upper part of the moving part 6, so that the air spring 7 is located in the middle of the adjacent rib plate, four air springs 7 are used to form a group, and the air circuit is connected in series outside; the guide shaft 10 is installed in the bearing seat 9 and fixed on the moving part 6.

[0020] There are four bearing seats 9 and guide shafts 10, and the guide shafts 10 and bearing seats 9 are evenly distributed along the circumference of the moving part 6. The guide shafts 10 and air springs 7 are arranged at intervals. The guide shafts 10 and bearing seats 9 are arranged to provide guidance for the movement of the moving part 6, and the upper guide constraint is changed from the middle constraint to four guides evenly distributed along the circumferential direction. This structure is particularly suitable for vibration equipment with larger moving parts 6. It not only meets the constraints but also can improve the performance of the vibration table by dispersing the constraints to improve the uniformity of the table surface and reduce the lateral vibration ratio. Such a guiding and bearing structure can achieve correct guiding and bearing without flipping the table body, which greatly simplifies the installation and maintenance of the moving part 6. The exhaust hood 3 is connected to the lower pole plate 2 by screws, and the lower pole plate 2 is connected to the magnetic steel ring 5 by bolts.

[0021] The working principle of the present invention is: when the vibration table is loaded and guided, the upper guide and air spring 7 are each made into four evenly distributed air springs 7 and bearing seats 9, which are fixed in advance in the space between the two adjacent ribs of the moving component 6 above the central magnetic pole. After the moving component 6 is installed in the table body, the air spring 7 can be fixed to the upper surface of the moving component 6, and the guide shaft 10 is placed in the bearing seat 9, so as to avoid the influence of gravity on the adjustment of the guide constraint. This structure is simple and easy to operate. The moving component 6 can be placed vertically for fine adjustment. The vibration table does not need to be turned over for maintenance and installation, which saves time and improves work efficiency. It solves the problem of installing the guide and air spring 7 by turning over the vibration table during the installation of the moving component 6. The guiding and bearing are separated, the structure is simpler, and the installation and maintenance are more convenient and reliable. When the vibration table is bearing and guiding, four air springs 7 can be used to form a group, and the air circuit is connected in series outside. The guide shaft 10 is installed in the bearing seat 9 and fixed on the moving part 6. At the same time, the constraint on the upper guide is changed from the middle constraint to four uniformly distributed guides along the circumferential direction. This structure is particularly suitable for vibration equipment with larger moving parts 6. It not only meets the constraints but also can improve the performance of the vibration table by dispersing the constraints to improve the uniformity of the table surface and reduce the lateral vibration ratio. Such a guiding and bearing structure can achieve correct guiding and bearing without flipping the table body, which greatly simplifies the installation and maintenance of the moving part 6.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A structure for bearing and guiding a vibration table, comprising a support frame (1), a magnetic steel ring (5) and a connecting assembly (4), characterized in that: The support frame (1) is a U-shaped structure. A magnetic steel ring (5) is arranged inside the support frame (1). The magnetic steel ring (5) and the support frame (1) are connected by a connecting assembly (4). The support frame (1) and the magnetic steel ring (5) are connected via the connecting assembly (4). A lower pole plate (2) is arranged at the bottom of the magnetic steel ring (5). An exhaust hood (3) is arranged below the lower pole plate (2). A central magnetic pole is arranged inside the magnetic steel ring (5). A moving component (6) is arranged above the central magnetic pole. A bearing seat (9) is arranged inside the moving component (6). A guide shaft (10) connected to the central magnetic pole is arranged inside the bearing seat (9). A spring seat (8) is arranged between the magnetic steel ring (5) and the moving component. An air spring (7) is arranged above the spring seat (8). The guide shaft (10) is in interference connection with the central magnetic pole, the bearing seat (9) is connected to the moving part (6) by screws, and the bearing seat (9) is in sliding connection with the guide shaft (10); The spring seat (8) is fixedly mounted inside the central magnetic pole, and the air spring (7) is connected to the moving component (6) and the spring seat (8) by means of clamping.

2. A vibration table bearing and guiding structure according to claim 1, characterized in that: There are four air springs (7) and four spring seats (8), and the air springs (7) and the spring seats (8) are evenly distributed along the circumferential direction of the moving component (6).

3. The structure for supporting and guiding a vibration table according to claim 1, characterized in that: There are four bearing seats (9) and four guide shafts (10), and the guide shafts (10) and the bearing seats (9) are evenly distributed along the circumference of the moving component (6), and the guide shafts (10) and the air springs (7) are arranged at intervals.

4. The structure for supporting and guiding a vibration table according to claim 1, characterized in that: The exhaust hood (3) is connected to the lower pole plate (2) via screws, and the lower pole plate (2) is connected to the magnetic steel ring (5) via bolts.

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