Alignment platform and alignment platform transmission mechanism

Abstract

The utility model discloses an alignment platform and an alignment platform transmission mechanism, and relates to the technical field of alignment platforms, the alignment platform comprises four groups of adjusting assemblies and four groups of driving assemblies, the driving assemblies are arranged on one sides of the adjusting assemblies, each driving assembly comprises a fixing frame, and a driving motor is fixedly mounted at one end, far away from the adjusting assemblies, of the fixing frame; the output end of the driving motor penetrates through the outer side of the driving assembly and is fixedly connected with a coupler, the other end of the coupler is fixedly connected with a lead screw, the other end of the lead screw penetrates through the inner side of the fixing frame and extends to the outer side of the fixing frame, and two symmetrically-distributed sliding grooves are formed in the end, close to the lead screw, of the inner side of the fixing frame. According to the alignment platform, errors caused by inertia when the lead screw stops rotating are reduced through the arrangement of the brake block, the adjustment precision of the alignment platform is improved, and meanwhile the adjustment precision can be further improved in cooperation with a real-time monitoring and feedback mechanism of the laser range finder.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of alignment platform, concretely relates to an alignment platform and alignment platform transmission mechanism. BACKGROUND

[0002] The alignment platform is a kind of precision equipment used in manufacturing industry and engineering field, it is mainly used to ensure that workpiece can be accurately positioned in machining, assembly or detection process, and the alignment platform with positioning function can realize the accurate positioning of workpiece by specific design and component, guarantee the stability and repeatability of machining quality, and this kind of platform plays an important role in automatic production line, precision engineering, semiconductor manufacturing and aerospace etc.

[0003] In prior art, the transmission mechanism of alignment platform is mostly combined with motor and screw rod to drive the adjusting component of platform to carry out position adjustment, during position adjustment, screw rod is easily affected by inertia at the moment of stopping rotation, can not stop rotation in time, and then certain error is generated, and the bearing plate of alignment platform is mostly installed by bolt fixing mode, when replacing and maintaining bearing plate, bolt needs to be disassembled one by one, and time consumption is long, therefore, an alignment platform and alignment platform transmission mechanism are provided to solve the problems in the above. TECHNICAL SOLUTION

[0004] To solve the above technical problems, provide a kind of alignment platform and alignment platform transmission mechanism, this technical scheme solves the problems in the above background art that the transmission mechanism of alignment platform in prior art is mostly combined with motor and screw rod to drive the adjusting component of platform to carry out position adjustment, during position adjustment, screw rod is easily affected by inertia at the moment of stopping rotation, can not stop rotation in time, and then certain error is generated, and the bearing plate of alignment platform is mostly installed by bolt fixing mode, when replacing and maintaining bearing plate, bolt needs to be disassembled one by one, and time consumption is long.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] An alignment platform and alignment platform transmission mechanism, including four groups of adjusting components and four groups of driving components, the driving component is arranged on the side of adjusting component;

[0007] The driving assembly comprises a fixed frame, a driving motor is fixedly installed at one end of the fixed frame away from the adjusting assembly, an output end of the driving motor penetrates through the outside of the driving assembly and is fixedly connected with a shaft coupling, the other end of the shaft coupling is fixedly connected with a lead screw, the other end of the lead screw penetrates through the inside of the fixed frame and extends to the outside of the fixed frame, two symmetrically distributed sliding grooves are formed at one end of the inside of the fixed frame close to the lead screw, a second electromagnet is fixedly connected inside the sliding grooves, at least one guide rod is fixedly connected to the opposite side of the two second electromagnets, a brake block is slidably connected to the outer surface of the guide rod, and a second spring is sleeved between the outer surface of the guide rod and the brake block.

[0008] The adjusting assembly comprises a lower support base, a first sliding seat is slidably connected to the upper end of the lower support base, the first sliding seat is threadedly connected to the outer surface of the lead screw, a second sliding seat is slidably connected to the upper end of the first sliding seat, a bearing seat is fixedly connected to the upper end of the second sliding seat, a cross-roller bearing is fixedly connected to the inside of the bearing seat, a connecting column is fixedly connected to the inside of the cross-roller bearing inner ring, a connecting seat is fixedly connected to the upper end of the connecting column, a connecting groove is formed in the upper end of the connecting seat, two symmetrically distributed expansion grooves are formed in the inside of the connecting groove, a first electromagnet is fixedly connected to the inside of the expansion grooves, at least one first spring is fixedly connected to the opposite end of the two first electromagnets, a plug block is fixedly connected to the other end of the first spring, and the plug block is slidably connected to the inside of the expansion grooves.

[0009] Preferably, the inside bottom end of the lower support base and the upper end of the first sliding seat are fixedly connected with two symmetrically distributed second limiting plates, the lower end of the first sliding seat and the lower end of the second sliding seat are fixedly connected with a first limiting plate at the midpoint of the two second limiting plates, and the first limiting plate is provided with a laser range finder on the opposite side of the two second limiting plates.

[0010] Preferably, the inside bottom end of the lower support base is fixedly connected with two symmetrically distributed first dovetail blocks, the upper end and the lower end of the first sliding seat are respectively provided with two symmetrically distributed second dovetail grooves and first dovetail grooves, the lower end of the second sliding seat is fixedly connected with two symmetrically distributed second dovetail blocks, the second dovetail blocks are slidably connected to the inside of the second dovetail grooves, and the first dovetail blocks are slidably connected to the inside of the first dovetail grooves.

[0011] Further, the utility model also provides a kind of alignment platform, including the alignment platform transmission mechanism of any one of the above, the alignment platform further includes fixed plate and bearing plate, four lower support bases are fixedly connected to the upper end of fixed plate, and bearing plate is active in the upper end of four connecting seats.

[0012] Preferably, the lower end of the bearing plate is fixedly connected with four evenly distributed connecting blocks, symmetrically distributed insertion grooves are formed in the two ends of the connecting block, and the plug block is inserted into the inside of the insertion groove.

[0013] The utility model has the beneficial effect compared with prior art:

[0014] The present application discloses a kind of alignment platform and alignment platform transmission mechanism, by setting brake block to reduce the error caused by inertia when screw stops rotating, improve the adjustment accuracy of alignment platform, simultaneously cooperate with the real-time monitoring and feedback mechanism of laser range finder, can further improve the accuracy of adjustment.

[0015] In the present application, the bearing plate is installed and fixed in a plug-in manner, and can be quickly fixed and released in cooperation with the use of the first electromagnet, facilitating the replacement and maintenance of the bearing plate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure of the utility model is shown in the schematic diagram.

[0017] Figure 2 The structure of the adjustment assembly and the driving assembly in the utility model is shown in the schematic diagram.

[0018] Figure 3 The structure of the brake block in the utility model is shown in the schematic diagram.

[0019] Figure 4 The structure of the connecting seat in the utility model is shown in the schematic diagram.

[0020] Figure 5 The structure of the lower support seat in the utility model is shown in the schematic diagram.

[0021] Figure 6 The structure of the first sliding seat in the utility model is shown in the schematic diagram.

[0022] Figure 7 The structure of the first limiting plate in the utility model is shown in the schematic diagram.

[0023] Figure 8 The structure of the second sliding seat in the utility model is shown in the schematic diagram.

[0024] Figure 9 The structure of the bearing plate in the utility model is shown in the schematic diagram.

[0025] Reference numerals in the drawings are:

[0026] 1, adjusting assembly; 101, lower support seat; 102, first sliding seat; 103, second sliding seat; 104, bearing seat; 105, cross roller bearing; 106, connecting column; 107, connecting seat; 108, connecting groove; 109, telescopic groove; 110, first electromagnet; 111, first spring; 112, plug; 113, first limit plate; 114, laser range finder; 115, second limit plate; 116, first dovetail block; 117, first dovetail groove; 118, second dovetail groove; 119, second dovetail block;

[0027] 2, drive assembly; 201, fixed frame; 202, drive motor; 203, shaft coupling; 204, screw; 205, sliding groove; 206, brake block; 207, second electromagnet; 208, guide rod; 209, second spring;

[0028] 3, fixed plate; 4, bearing plate; 401, connecting block; 402, slot. DETAILED DESCRIPTION

[0029] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious variants can be thought of by those skilled in the art.

[0030] Referring to Figures 1-9 As shown in the figure, a kind of alignment platform transmission mechanism, including four groups of adjusting assembly 1 and four groups of drive assembly 2, drive assembly 2 is arranged at the side of adjusting assembly 1;

[0031] Wherein, drive assembly 2 includes fixed frame 201, and the end away from adjusting assembly 1 of fixed frame 201 is fixedly installed with drive motor 202, the output end of drive motor 202 is through the outside of drive assembly 2 and is fixedly connected with shaft coupling 203, the other end of shaft coupling 203 is fixedly connected with screw 204, the other end of screw 204 is through the inside of fixed frame 201 and extends to the outside of fixed frame 201, the inside of fixed frame 201 is close to the end of screw 204 and is equipped with two symmetrical distribution sliding grooves 205, the inside of sliding groove 205 is fixedly connected with second electromagnet 207, the opposite side of two second electromagnets 207 is fixedly connected with at least one guide rod 208, the outer surface of guide rod 208 is slidably connected with brake block 206, and the outer surface of guide rod 208 is located between second electromagnet 207 and brake block 206 and is provided with second spring 209;

[0032] The adjusting assembly 1 comprises a lower support base 101, the upper end of the lower support base 101 is slidably connected with a first sliding base 102, the first sliding base 102 is threadedly connected to the outer surface of a lead screw 204, the upper end of the first sliding base 102 is slidably connected with a second sliding base 103, the upper end of the second sliding base 103 is fixedly connected with a bearing seat 104, the inner side of the bearing seat 104 is fixedly connected with a cross-roller bearing 105, the inner side of the inner ring of the cross-roller bearing 105 is fixedly connected with a connecting column 106, the upper end of the connecting column 106 is fixedly connected with a connecting seat 107, the upper end of the connecting seat 107 is provided with a connecting groove 108, the inside of the connecting groove 108 is provided with two symmetrical expansion grooves 109, the inside of the expansion grooves 109 is fixedly connected with a first electromagnet 110, the opposite end of the two first electromagnets 110 is fixedly connected with at least one first spring 111, the other end of the first spring 111 is fixedly connected with an insertion block 112, and the insertion block 112 is slidably connected in the inside of the expansion grooves 109.

[0033] Further, the inner bottom end of the lower support base 101 and the upper end of the first sliding base 102 are fixedly connected with two symmetrical second limiting plates 115, the lower end of the first sliding base 102 and the lower end of the second sliding base 103 are fixedly connected with a first limiting plate 113 at the midpoint of the two second limiting plates 115, and the opposite side of the first limiting plate 113 from the two second limiting plates 115 is provided with a laser range finder 114.

[0034] Further, the inner bottom end of the lower support base 101 is fixedly connected with two symmetrical first dovetail blocks 116, the upper end and the lower end of the first sliding base 102 are respectively provided with two symmetrical second dovetail grooves 118 and first dovetail grooves 117, the lower end of the second sliding base 103 is fixedly connected with two symmetrical second dovetail blocks 119, the second dovetail blocks 119 are slidably connected in the inside of the second dovetail grooves 118, and the first dovetail blocks 116 are slidably connected in the inside of the first dovetail grooves 117.

[0035] Further, the driving motor 202 is used for driving the lead screw 204 to rotate, the first sliding base 102 can be driven to move horizontally by driving the lead screw 204 to rotate by the driving motor 202, the second sliding base 103 is slidably connected to the upper end of the first sliding base 102, and the sliding direction is perpendicular to the first sliding base 102.

[0036] Further, the first dovetail grooves 117 and the first dovetail blocks 116 guide the horizontal movement of the first sliding base 102, so that the first sliding base 102 moves in the specified direction, and the second dovetail grooves 118 and the second dovetail blocks 119 guide the horizontal movement of the second sliding base 103, so that the second sliding base 103 moves in the specified direction.

[0037] Further, the sliding directions of the first sliding seat 102 of the two diagonal adjustment assemblies 1 are the same.

[0038] Further, the second limiting plate 115 is used for limiting the first limiting plate 113, when the first sliding seat 102 and the second sliding seat 103 move horizontally to the maximum distance, the first limiting plate 113 abuts against the inner side of the second limiting plate 115 on one side, which can avoid the first sliding seat 102 and the second sliding seat 103 from moving excessively.

[0039] Further, the laser range finder 114 is used for measuring the distance between the first limiting plate 113 and the second limiting plate 115, in the process of sliding of the first sliding seat 102 and the second sliding seat 103, the distance between the first limiting plate 113 and the second limiting plate 115 is measured by the laser range finder 114 and is fed back to the control device in real time for data comparison, which can ensure the accuracy of the movement of the first sliding seat 102 and the second sliding seat 103, and further improve the accuracy of the alignment platform.

[0040] Further, the brake block 206 near one end of the second electromagnet 207 is made of a metal material that can be attracted, when the first sliding seat 102 moves under the driving of the lead screw 204, the second electromagnet 207 is in the power-on state, after the first sliding seat 102 moves to the target position, the second electromagnet 207 is in the power-off state, when the second electromagnet 207 is powered on, the second electromagnet 207 generates a magnetic force to attract the brake block 206, at this time, the brake block 206 compresses the second spring 209 and further moves away from the lead screw 204, at this time, the brake block 206 does not contact the lead screw 204 and does not affect the normal operation of the lead screw 204, when the second electromagnet 207 is powered off, the magnetic force of the second electromagnet 207 disappears, at this time, the brake block 206 abuts against the outer surface of the lead screw 204 under the elastic force of the second spring 209, when the brake block 206 abuts against the outer surface of the lead screw 204, a friction force is generated between the brake block 206 and the lead screw 204, which can quickly stop the rotation of the lead screw 204, thereby reducing the adjustment error caused by inertia when the lead screw 204 stops rotating, and helping to improve the adjustment accuracy of the adjustment assembly 1.

[0041] In addition to the above-mentioned alignment platform transmission mechanism, the utility model also provides an alignment platform, which comprises the alignment platform transmission mechanism of any one of the above-mentioned alignment platform transmission mechanisms, and the alignment platform further comprises a fixed plate 3 and a bearing plate 4, the four lower support seats 101 are fixedly connected to the upper end of the fixed plate 3, and the bearing plate 4 is movably arranged at the upper end of the four connecting seats 107.

[0042] Further, the lower end of the bearing plate 4 is fixedly connected with four evenly distributed connecting blocks 401, the connecting blocks 401 are inserted into the inside of the connecting grooves 108, and symmetrically distributed insertion grooves 402 are formed in the two ends of the connecting blocks 401.

[0043] Further, the plug 112 is made of a metal material that can be adsorbed, when the first electromagnet 110 is powered, a magnetic force is generated to adsorb the plug 112, at this time, the plug 112 will compress the first spring 111 to retract into the telescopic slot 109, at the same time, the plug 112 is separated from the insertion slot 402, at this time, the carrier plate 4 can be taken down by pulling upward, so as to facilitate replacement and maintenance of the carrier plate 4.

[0044] Working principle: in use, the driving motor 202 drives the screw rod 204 to rotate, the rotation of the screw rod 204 drives the first sliding seat 102 to move horizontally along the outer surface thereof, when the plurality of driving motors 202 drive the plurality of screw rods 204 to rotate, the second sliding seat 103 moves the first sliding seat 102, through the cooperation of the first sliding seat 102 and the second sliding seat 103, the position of the carrier plate 4 can be adjusted, the laser range finder 114 measures and feeds back the distance between the first limiting plate 113 and the second limiting plate 115 in real time during the adjustment, so as to provide accurate position information, help the control system to carry out accurate data comparison, and ensure the accuracy of the platform adjustment, when the screw rod 204 drives the first sliding seat 102 to move, the second electromagnet 207 is powered, a magnetic force is generated to adsorb the brake block 206, at this time, the brake block 206 compresses the second spring 209 and separates from the screw rod 204, when the first sliding seat 102 reaches the target position, the second electromagnet 207 is powered off, the magnetic force disappears, the brake block 206 contacts the screw rod 204 under the action of the second spring 209, a friction force is generated, the rotation of the screw rod 204 is rapidly stopped, the adjustment error caused by inertia is reduced, so as to improve the accuracy of the position adjustment, the lower end of the carrier plate 4 is connected with the connecting groove 108 through the connecting block 401, and is fixed through the cooperation of the plug 112 and the insertion slot 402, when the first electromagnet 110 is powered, a magnetic force is generated to adsorb the plug 112, at this time, the plug 112 compresses the first spring 111 and separates from the insertion slot 402, so as to unlock the carrier plate 4, at this time, the carrier plate 4 can be easily disassembled by pulling upward, so as to facilitate replacement or maintenance.

[0045] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. An alignment stage drive mechanism, characterized by, Including four sets of adjusting assembly (1) and four sets of drive assembly (2), drive assembly (2) is arranged at one side of adjusting assembly (1); Wherein, the drive assembly (2) includes a fixed frame (201), the fixed frame (201) is fixedly installed with a drive motor (202) at one end away from the adjusting assembly (1), the output end of the drive motor (202) penetrates the outside of the drive assembly (2) and is fixedly connected with a shaft coupling (203), the other end of the shaft coupling (203) is fixedly connected with a lead screw (204), the other end of the lead screw (204) penetrates the inside of the fixed frame (201) and extends to the outside of the fixed frame (201), two symmetrically distributed sliding grooves (205) are formed at one end of the inside of the fixed frame (201) close to the lead screw (204), the inside of the sliding groove (205) is fixedly connected with a second electromagnet (207), the opposite side of the two second electromagnets (207) is fixedly connected with at least one guide rod (208), the outer surface of the guide rod (208) is slidably connected with a brake block (206), the outer surface of the guide rod (208) is sleeved with a second spring (209) between the second electromagnet (207) and the brake block (206); The adjusting assembly (1) includes a lower support base (101), the upper end of the lower support base (101) is slidably connected with a first sliding seat (102), the first sliding seat (102) is threadedly connected to the outer surface of the lead screw (204), the upper end of the first sliding seat (102) is slidably connected with a second sliding seat (103), the upper end of the second sliding seat (103) is fixedly connected with a bearing seat (104), the inside of the bearing seat (104) is fixedly connected with a cross roller bearing (105), the inside of the cross roller bearing (105) inner ring is fixedly connected with a connecting column (106), the upper end of the connecting column (106) is fixedly connected with a connecting seat (107), the upper end of the connecting seat (107) is provided with a connecting groove (108), the inside of the connecting groove (108) is provided with two symmetrically distributed expansion grooves (109), the inside of the expansion groove (109) is fixedly connected with a first electromagnet (110), the opposite end of the two first electromagnets (110) is fixedly connected with at least one first spring (111), the other end of the first spring (111) is fixedly connected with an insertion block (112), the insertion block (112) is slidably connected in the inside of the expansion groove (109).

2. The alignment stage drive mechanism of claim 1, wherein: The inside bottom end of the lower support base (101) and the upper end of the first sliding seat (102) are fixedly connected with two symmetrically distributed second limiting plates (115), the lower end of the first sliding seat (102) and the lower end of the second sliding seat (103) are fixedly connected with a first limiting plate (113) at the midpoint of the two second limiting plates (115), and the opposite side of the first limiting plate (113) and the two second limiting plates (115) is provided with a laser range finder (114).

3. The alignment stage drive mechanism of claim 1, wherein: The inner bottom end of the lower support base (101) is fixedly connected with two symmetrically distributed first dovetail blocks (116), the upper end and the lower end of the first sliding base (102) are respectively provided with two symmetrically distributed second dovetail grooves (118) and first dovetail grooves (117), the lower end of the second sliding base (103) is fixedly connected with two symmetrically distributed second dovetail blocks (119), the second dovetail blocks (119) are slidingly connected in the interiors of the second dovetail grooves (118), and the first dovetail blocks (116) are slidingly connected in the interiors of the first dovetail grooves (117).

4. An alignment stage, comprising: The alignment platform transmission mechanism comprises the alignment platform, the fixed plate (3), and the bearing plate (4), the four lower support bases (101) are fixedly connected to the upper end of the fixed plate (3), and the bearing plate (4) is movable on the upper ends of the four connecting bases (107).

5. The alignment platform of claim 4, wherein: The lower end of the bearing plate (4) is fixedly connected with four uniformly distributed connecting blocks (401), the two ends of the connecting blocks (401) are provided with symmetrically distributed insertion grooves (402), and the insertion blocks (112) are inserted into the interiors of the insertion grooves (402).

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