CN202292108U - Alignment platform - Google Patents

Abstract

The utility model provides an alignment platform, including a base, a workstation and three mobile device of group, these some mobile device set up between this base and this workstation, make these some mobile device can drive the workstation and remove, wherein each mobile device of group is including an movable part, a fixed part and one push away to the mechanism, this fixed part sets firmly in this base and has a rotatable screw rod, this movable part has a spiral shell and fits the screw of screw rod, should push away to the mechanism application of force in each this movable part, make each this movable part push away to the wherein one end of screw rod, with this, the utility model discloses the usable clearance that pushes away around the mechanism with the screw rod keeps in fixed position, and can get rid of the clearance right the utility model discloses the influence of location ability improves by a wide margin the utility model discloses the precision of location and removal.

Description

Alignment platform

technical field

The utility model relates to an alignment platform. the

Background technique

The known alignment platform can refer to the description of Taiwan Patent No. M400904, which uses multiple sets of moving units to drive the platform to move, and each set of moving units can use the rotation of the screw to drive the platform to reciprocate along the screw. Due to assembly requirements, there will be an irremovable gap between the screw and the screw hole of the matching screw, which will reduce the accuracy of the alignment platform for processing and positioning. the

In more detail, when the screw drives the platform to move back and forth, the position of the gap relative to the screw may change due to the reverse feed of the screw, so that the position of the platform changes, or it does not move to the predetermined position, so that the platform does not move. Be precisely moved and positioned to a predetermined position. the

In addition to the above reasons, even if the user uses one set of mobile units to move the platform to a precise position in a certain direction, after the user further operates another set of mobile units, two or more sets of mobile units will interfere with each other, causing the The position of the gap changes again, and the original accurate position is shifted, reducing the positioning accuracy. the

Utility model content

The main purpose of the utility model is to provide an alignment platform, which can have a more precise movement and positioning capability, and can provide accurate alignment effects. the

To achieve the above purpose, the utility model provides an alignment platform, which includes a base, three moving devices and a workbench. the

Each of the moving devices includes a fixed part, a movable part and a pushing mechanism, each of the fixed parts has a screw rod, and each of the fixed parts is fixed on the base, and each of the movable parts has a screw hole. The movable part is screwed with the corresponding screw rod, and each fixed part can drive the respective screw rod to rotate, so that the movable parts can translate along the corresponding screw rod, and each push mechanism exerts force on each movable part, so that each movable part Pushing against one end of each screw along each screw, two of the three screws are not parallel to each other, and the third screw is parallel to one of the two screws. The workbench is arranged on the movable parts, and each movable part drives the workbench to move or rotate when moving. the

In this way, the utility model can use the pushing mechanism to push against the movable part and the fixed part, so that the gap between the screw rod and the movable part can be kept at a fixed position, and the influence of the gap on the position of the workbench or the mobile positioning can be removed, greatly improving The accuracy of the use of the alignment platform, and the extremely improved efficiency of the use of the alignment. the

Description of drawings

Fig. 1 is a perspective view of the utility model. the

Fig. 2 is a three-dimensional exploded view of the mobile device in the present invention. the

Fig. 3 is a side view of the mobile device in the present invention. the

Fig. 4 is a top view of the mobile device in the present invention. the

Fig. 5 is an enlarged cross-sectional view of a screw rod and a screw hole in the utility model. the

【Description of main component symbols】

1: Base 11: Active slide rail

2: Mobile device 21: Fixed part

211: Screw 212: Fixing seat

213: Power Department 214: Screws

22: Movable part 221: Screw hole

222: Slider 223: Seat

224: combination block 225: perforation

226: Pin 227: Positioning hole

228: Jack 231: Elastic piece

3: Mobile device 4: Mobile device

5: Workbench 51: Passive slider

52: Turn the slider.

Detailed ways

The following examples illustrate possible implementations of the present utility model, but are not intended to limit the scope of protection of the present utility model, and will be described first. the

Please refer to Figure 1, the utility model provides an alignment platform, including a base 1, three moving devices 2, 3, 4 and a worktable 5, each moving device includes a fixed part, a movable part and a pushing part mechanism, each fixing part has a screw rod respectively. the

These moving devices 2, 3, 4 are arranged between the base 1 and the workbench 5, and are used to control the movement of the workbench 5 relative to the base 1 so as to accurately position the workpiece to be processed. It is fixed on the workbench 5 for further precise processing. The base 1 is provided for the moving devices 2 , 3 , 4 . Preferably, the base 1 has three active sliding rails 11 . The movable part of each moving device is respectively slid on one of the driving slide rails, and the driving slide rails are respectively parallel to one of the screw rods. the

Please refer to FIG. 2 to FIG. 4 , the aforementioned mobile device 2 includes a fixed part 21 , a movable part 22 and a pushing mechanism. the

As shown in Figure 1, the fixing part 21 is fixed on the base 1 and has a screw 211, the fixing part 21 can drive the screw 211 to rotate, more clearly, the fixing part 21 includes a screw 211, a fixing seat 212 With a power part 213, the fixed seat 212 is fixed on the base 1, the screw 211 is passed through the fixed seat 212, and can rotate around the axis of the screw rod 211 itself relative to the fixed seat 212, the power part 213 is fixed on the The fixing base 212 is connected to the screw rod 211 so that the power part 213 can drive the screw rod 211 to rotate. More specifically, the power part can include a motor, a servo and a reduction mechanism. The fixing portion 21 further includes two screw components 214 , preferably, the two screw components 214 are screwed and fixed on the fixing base 212 . the

The movable part 22 has a screw hole 221, the movable part 22 is screwed with the screw rod 211, so that when the screw rod 211 rotates, the movable part 22 will translate along the screw rod 211, more clearly, the movable part 22 can pass through A slide block 222 is slid on one of the driving slide rails 11, so that the movable part 22 can only slide along the driving slide rail 11, and the driving slide rail 11 is parallel to the screw rod 211, so that the screw rod 211 can be driven by rotation. The movable part 22 slides. Wherein, the movable part 22 may include a seat 223 and a combination block 224, the seat 223 is fixed on the slider 222, the combination block 224 is fixed on the seat 223, the combination block 224 is provided with the screw Hole 221, the seat portion 223 is also provided with the coaxial and slightly larger perforation 225 with the screw hole 221, so that the utility model can set a more precise screw thread in the screw hole 221 of the combination block 224, for the screw rod 211 to screw together , and the combined block 224 can have a simpler shape and outline, and can be easier to manufacture. The movable part 22 may further include two pins 226, and the movable part 22 additionally forms two positioning holes 227 and two insertion holes 228. More specifically, the two positioning holes 227 and the two insertion holes 228 are located in the seat part 223, The two positioning holes 227 are parallel to the screw rod 211 , and the two insertion holes 228 are respectively transversely connected to one of the positioning holes 227 . the

The pushing mechanism applies force to the movable part 22, so that the movable part 22 pushes against one end of the screw rod 211 along the screw rod 211. More clearly, the pushing mechanism includes two elastic members 231, each of which 231 can be set as a spring, the two elastic members 231 are respectively inserted in one of the positioning holes 227, and the two pins 226 are respectively inserted in one of the insertion holes 228 and one of the elastic members 231, so that one end of the two elastic members 231 are respectively fixed to the movable portion 22 . The other ends of the two elastic parts 231 are sleeved on one of the screw parts 214 respectively, so that the two elastic parts 231 are respectively fixed to the fixing part 21 at the same time. Furthermore, the two elastic members 231 are pre-stretched so that the elastic members 231 can pull the movable part 22 and push against the fixed part 21 along the screw rod 211. However, in other possible embodiments of the present utility model, the The two elastic members 231 are pre-compressed so that the movable part 22 pushes along the screw rod 211 toward a side away from the fixed part 21 . In a preferred embodiment of the present utility model, the two positioning holes 227 are respectively located on both sides of the screw hole 221, so that the two elastic members 231 are arranged on both sides of the screw rod 211, and the elastic members 231 can be used to evenly push against the movement. Section 22. the

The utility model can be provided with three groups of mobile devices 2, 3, 4, and the above is only one group of mobile devices 2 as an example for the convenience of explanation, and the remaining two groups of mobile devices 3, 4 can have the same or similar structure. Wherein, two of the screw rods in these moving devices 2, 3, and 4 are not parallel to each other, preferably, are perpendicular to each other, and the other screw rod is parallel to one of the screw rods, as shown in Figure 1, so that these moving devices 2, 3, 4 can arbitrarily drive the workbench 5 to move horizontally, and when the mutually parallel screw rods act in opposite directions, they can drive the workbench 5 to rotate. the

The workbench 5 is arranged on the movable part 22 of each mobile device, so that the movable part 22 drives the workbench 5 to move or rotate when it moves, wherein the workbench 5 can further include three sets of passive sliders 51 and three sets of rotating sliders 52 , each passive slider 51 is slidably arranged on one of the movable parts 22, more specifically, is slidably arranged on the seat part 223, and its slidable direction is perpendicular to the moving direction of the movable part 22 respectively, and these The rotating slider 52 is rotatably arranged on the passive slider 51, so that when the moving parts of the moving devices 2, 3, 4 move, the working table 5 can be smoothly driven to move or rotate. the

Using the above device, please refer to FIG. 5 , the movable part 22 will be pushed by the pushing mechanism, and push against one end of the screw 211 along the screw 211, so that the gap in the screw hole 221 is maintained by the movable part 22. On the other side of the arrival direction, when the screw rod 211 drives the movable part 22 to move, the movable part 22 can be accurately positioned by the number of turns or the rotation angle of the screw rod 211. Please refer to Figure 1 again. When the three groups of moving devices 2, 3, 4 When simultaneously operating, the position and moving distance of each movable part can be maintained at the exact target position and distance value at any time, and the precise positioning of the moving distance or position of the workbench 5 can be achieved at any time, and there will be no problems due to reverse progress. The resulting positioning error greatly improves the precision and accuracy of processing. the

Based on the above, in the commonly used alignment platforms, since the movable parts of each mobile device are prone to inaccurate positioning, the positioning errors of each movable part are different, and even interference may occur due to the movement of one of the movable parts. The positions of other movable parts are slightly shifted, resulting in complex and complex positioning errors of the workbench, which cannot be corrected by numerical calculation methods, but all movable parts must be moved to the position at the same time to reduce the error , so that it is difficult to further improve the positioning accuracy of the commonly used alignment platform, in this regard, the alignment platform provided by the utility model can move each movable part to the exact predetermined position, even if one of the movable parts moves, it is not easy It interferes with other moving parts, so it can be accurately positioned and the worktable can be maintained at the exact position, which further improves the precision and accuracy of processing, and has extremely high technological value. the

Secondly, the utility model can further insert the elastic part in the pushing mechanism into the positioning hole, so that the pushing force of the spring can be kept in a predetermined direction, and the accuracy of the utility model can be further improved. the

Furthermore, the present invention can symmetrically arrange the two elastic parts 231 on both sides of the screw 211, so that the screw 211 and the screw hole 221 can be further uniformly and stably combined, further improving the accuracy of the present invention. the

To sum up, the utility model greatly improves the positioning accuracy of the alignment platform, can reduce the error of workpiece processing, and breaks through the bottleneck of processing precision in traditional processing, which is really an improvement. the

Claims (8)

1. one kind to bit platform, it is characterized in that, comprises:

One base;

Three mobile devices; Respectively this mobile device comprises a fixed part, a movable part and a pushing and pressing mechanism, and respectively this fixed part has a screw rod, and respectively this fixed part is fixedly arranged on this base; Respectively this movable part has a screw; Respectively the movable part of this mobile device screws togather with corresponding screw rod, in three screw rods wherein two not parallel each other, the 3rd screw rod then with these two screw rods in one of them screw rod parallel;

One workbench is located at those movable parts, drives this movable workbench or rotation when respectively this movable part moves.

2. as claimed in claim 1ly bit platform is characterized in that respectively this pushing and pressing mechanism comprises two elastic components, respectively this elastic component one end is fixedly arranged on corresponding fixed part, and the other end is fixedly arranged on corresponding movable part.

3. as claimed in claim 2 to bit platform; It is characterized in that this movable part also comprises two latches, this movable part forms two locating holes and two jacks; This two jack communicates with a locating hole wherein respectively; This two elastic component is inserted in a wherein locating hole respectively, and this two latch is inserted in wherein a jack and wherein an elastic component respectively, makes this two elastic component be individually fixed in this movable part.

4. as claimed in claim 2 bit platform is characterized in that elastic component that respectively should pushing and pressing mechanism is stretched in advance, the movable part that makes the elastic component of this pushing and pressing mechanism respectively haul correspondence pushes against to the fixed part of correspondence.

5. as claimed in claim 3 bit platform is characterized in that elastic component that respectively should pushing and pressing mechanism is stretched in advance, the movable part that makes the elastic component of this pushing and pressing mechanism respectively haul correspondence pushes against to the fixed part of correspondence.

6. as each is described to bit platform in the claim 2 to 5, it is characterized in that respectively the elastic component in this mobile device is listed in the both sides of corresponding screw rod.

7. as each is described to bit platform in the claim 1 to 5, it is characterized in that this base has three slide rails initiatively, those movable parts are slidedly arranged on wherein a slide rail initiatively respectively, those initiatively slide rails a screw rod is parallel respectively with wherein.

8. as claimed in claim 6 bit platform is characterized in that this base has three slide rails initiatively, those movable parts are slidedly arranged on wherein a slide rail initiatively respectively, those initiatively slide rails a screw rod is parallel respectively with wherein.

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