TW201808515A - Slide table having a function of adjusting angle - Google Patents

Abstract

A slide table having a function of adjusting angle includes a base secured on a supporting plane, a slide seat movably mounted on the base and a linear drive device laterally mounted on the base, wherein a top plane of the slide seat is defined as a base level and the linear drive device is connected to the slide seat. The slide seat is reciprocally moved relative to the base from changing an angle of elevation/rotation between the base level and the base when the linear drive device reciprocally draws the slide seat.

Description

Precision slide with angle adjustment

The invention relates to a precision sliding table; in particular to an innovative structural designer capable of precisely adjusting the precision sliding table with respect to the angle of the base.

According to the advent of the high-tech era, a variety of manufacturing processing modes have entered the nanometer level, and many precision products have higher and more stringent precision requirements in the manufacturing process, such as the production line of mobile phone lenses, and its precise positioning technology has become a must. condition.

In the precision machining process, the alignment platform (or the alignment slide) is a device commonly used in the industry; the typical structural type of the conventional alignment platform is mainly to provide a screw guide between a movable platform and a pedestal. The moving device can thereby achieve the purpose of driving the displacement or rotation of the movable platform to adjust the processing precision by controlling a single group of actions or integral movements of the screw guiding devices.

The driving method of Xi's counter platform can be roughly divided into two forms: one-side push and direct drive. In general, the one-side push method usually uses the restoring force of the tension spring to drive the alignment platform to return to the original position, which has the advantage of being cheap. However, the work process that counts every second must be constantly shifted and reset quickly, and the speed of the machine cannot be kept up with the tension spring alone. Moreover, the tension spring has a problem of elastic fatigue, and it is easy to cause a reset error. Secondly, it is a direct driving method. Although such a driving method can overcome the above-mentioned one-side pushing mode, the reset speed is slow, the precision is not good, and the like, however, the play generated between the components cannot be effectively eliminated, and therefore, the pair is There is still room for improvement in the precision of the bits.

Therefore, in view of the problems existing in the above-mentioned conventional technologies, how to develop an innovative structure that can be more ideal and practical, and the relevant industry should further consider the goals and directions of breakthrough.

In view of this, the inventor has been engaged in the manufacturing development and design experience of related products for many years. After detailed design and careful evaluation, the inventor has finally obtained the practical invention.

The main object of the present invention is to provide a precision sliding table, and the technical problem to be solved is to solve the innovative breakthrough for how to develop a new precision sliding table with more ideal and practical angle adjustment function.

The technical feature of the invention solves the problem mainly lies in the precision sliding table with the angle adjustment function, which comprises a base mounted on a support surface, a movable seat movably mounted on the base, and a loading a linear driving device disposed on the base; wherein the movable seat is disposed as a reference surface, and the linear driving device is coupled to the moving base; when the linear driving device reciprocally pulls the moving base, Driving the movable seat to reciprocate relative to the base, and changing the angle of the moving base relative to the base; the moving base is extended with a shaft, and the end of the shaft is set by the inner and outer sleeves. a bearing and a second bearing; the free end of the linear driving device is provided with a driving seat; the driving base is formed with a groove, and the first bearing and the second bearing system are simultaneously accommodated in the groove A first top block and a second top block are respectively fixed on the two sides of the groove; the first top block and the second top block are respectively oppositely fixed to the first bearing and the second bearing respectively.

The main effect and advantage of the present invention is that the bearing can be moved to the position of the bearing and the corresponding block by the constant pushing action between the bearing block and the corresponding bearing block before the operation. On one side of the non-acting side, the inner ring and the outer ring of the bearing can be pressed against the corresponding top block in order, thereby achieving the practicability and progress of improving the precision of the machining.

The preferred embodiments of the present invention are mainly two: one is the first preferred embodiment shown in FIGS. 1 to 6 and the second preferred embodiment shown in FIGS. 7 to 12; An embodiment of the preferred embodiment is to change the elevation angle of the movable base 20 relative to the base 10; in the embodiment of the second preferred embodiment, the rotation angle of the movable base 20A relative to the base 10A is changed. Two preferred embodiments of the present invention are described in detail below.

Please refer to the first preferred embodiment of the precision sliding table with angle adjustment function of the present invention as shown in Figures 1, 5 and 6, but these embodiments are for illustrative purposes only and are not applicable to patent applications. The structure of the precision sliding table comprises a base 10 mounted on a support surface, a movable seat 20 movably mounted on the base 10, and a base mounted on the base The linear drive unit 30 is disposed on the movable base 20 as a reference surface 21, and the linear drive unit 30 is connected to the movable base 20. When the linear driving device 30 reciprocally pulls the moving base 20, the moving base 20 can be reciprocally moved relative to the base 10 to change the horizontal elevation angle of the moving base 20 relative to the base 10.

As shown in FIG. 1 to FIG. 5, the base 10 is formed with an arc-shaped sliding groove 11; a sliding rail 22 is respectively extended on both sides of the bottom surface of the movable base 20, and the two sliding rails 22 are respectively The complementary manner is slidably disposed on both sides of the chute 11. The movable base 20 is horizontally extended with a shaft 23, and the end of the shaft 23 is provided with a first bearing 24 and a second bearing 25 from the inner and outer sleeves.

The linear drive unit 30 includes an axially reciprocatingly movable drive rod 31 and a drive base 32 mounted on the free end of the drive rod 31, wherein the axis of the drive rod 31 is perpendicular to the axis of the shaft 23. The driving seat 32 is formed with a groove 33 corresponding to one side of the moving base 20, and the first bearing 24 and the second bearing 25 are simultaneously accommodated in the groove 33. A first top block 34 and a second top block 35 are respectively fixed on the two sides of the recess 33. The first top block 34 and the second top block 35 are on the same plane as the axis of the shaft 23. And the plane is parallel to the actuation axis of the drive rod 31. The first top block 34 and the second top block 35 are respectively formed with a first bearing rolling surface 342 and a second bearing rolling surface 351 at the end portions. The first bearing rolling surface 342 and the second bearing rolling surface 351 are oppositely fixed against the first bearing 24 and the second bearing 25 respectively, wherein the free end of the first top block 34 is provided with a top The bump 341 of the first bearing 24 is prevented from contacting the first top block 34 with the second bearing 25.

The first preferred embodiment is mainly used for changing the horizontal machining angle of a workpiece (not shown) placed on the reference surface 21 of the movable base 20 during precision machining. Please refer to FIG. 6 again, when the driving rod 31 of the linear driving device 30 extends forward (as indicated by the arrow A in FIG. 6), the protrusion 341 of the first top block 34 will be outwardly extended. Supporting the first bearing 24, the sliding rail 22 of the moving seat 20 is smoothly slid along the bottom surface of the sliding slot 11 (as indicated by the arrow B in FIG. 6), and during the sliding, the movement The front end of the seat 20 is gradually raised, and the rear end of the movable seat 20 is gradually lowered, thereby changing the horizontal elevation angle between the reference surface 21 of the movable base 20 and the base 10. During this process, the horizontal height of the shaft 23 is also gradually increased, and the first bearing 24 is pressed against the first bearing rolling surface 342. In other words, the change in the level of the axis of the shaft 23 before and after the action is equal to the arc length of the first bearing 24 rolling along the end face of the projection 341. When the driving rod 31 is retracted, the second top block 35 is reversely pushed up against the second bearing 25, so that the moving seat 20 is reset or the horizontal elevation angle between the reference surface 21 of the moving base 20 and the base 10 is changed. Direction; likewise, the second bearing 25 rolls along the second bearing rolling surface 351 during this process.

Referring to FIG. 7 to FIG. 10, which is a second preferred embodiment of the present invention, in the preferred embodiment, the precision sliding table with the angle adjustment function is between the base 10A and the movable seat 20A. Further, an X-axis moving device 40 and a Y-axis moving device 50 are further disposed. The moving base 20A is screwed on the Y-axis moving device 50, and the linear driving device 30A is laterally mounted on the Y-axis moving device 50. on. A shaft 23A is radially disposed on the moving base 20A. The shaft 23A is sequentially provided with a first bearing 24A and a second bearing 25A. In the preferred embodiment, the shaft 23A is An L-shaped structure includes a horizontal portion 231 and a vertical portion 232. The horizontal portion 231 is fixed to the reference surface 21A of the movable seat 20A. The first bearing 24A and the second bearing 25A are compliant. The sequence is mounted on the vertical portion 232.

The linear drive unit 30A includes a drive rod 31A and a drive base 32A mounted at a free end of the drive rod 31A, wherein the axis of the drive rod 31A is perpendicular to the axis of the vertical portion 232. The driving seat 32A is formed with a recess 33A, and the first bearing 24A and the second bearing 25A are simultaneously accommodated in the recess 33A. A first top block 34A and a second top block 35A are respectively fixed on the two sides of the recess 33A. The first top block 34A and the second top block 35A are respectively formed with a first bearing rolling surface 342A and a second bearing rolling surface 351A. The first bearing rolling surface 342A and the second bearing rolling surface 351A are respectively reversely fixed against the first bearing 24A and the second bearing 25A.

Referring to Figures 8, 10 and 11, when the drive rod 31A of the linear drive unit 30A is extended forward (as indicated by the arrow C in Fig. 11), the first top block 34A is pushed outward. The first bearing 24A, in turn, rotates the movable seat 20A relative to the base 10A by the shaft 23A (as indicated by an arrow D in FIG. 11), and adjusts the angle of rotation of the movable seat 20A with respect to the base 10A. During the rotation of the movable seat 20A, the first bearing 24A is in close contact with the first bearing rolling surface 342A of the first top block 34A. As shown in FIGS. 8, 10, and 12, when the driving rod 31A is retracted, the second top block 35A is reversely supported against the second bearing 25A, so that the moving seat 20A is reset or the moving seat is changed. The direction of the rotation angle between the 20A reference surface 21A and the base 10A; likewise, the second bearing 25A rolls along the second bearing rolling surface 351A of the second top block 35A during this process. When the driving rod 31A is retracted (as indicated by the arrow E in FIG. 12), the second top block 35A is reversely pushed up against the second bearing 25A, so that the moving seat 20A is reset or changed. The direction of rotation between the base 20A reference surface 21A and the base 10A (as indicated by the arrow F in Fig. 12); likewise, the second bearing 25A is rolled along the second bearing of the second top block 35A during this process. Face 351A rolls.

The invention is used for respectively pushing the first top block 34 / 34A and the second top block 35 / 35A of the second bearing 25 / 25A and the second top block 35 / 35A, the main function of which is to provide an inner and outer ring for eliminating the bearing. The role of the gap. Conventionally, the bearings have a set of inner rings and a ring that rolls relative to the inner ring, and a retainer for mounting balls or rollers between the outer ring and the inner ring for raising the outer ring and the inner ring. The concentricity of the ring reduces the friction between the outer ring and the inner ring. Bearings are quite sophisticated assembly parts, and their own dimensional error is usually required to be less than 1μm. However, when used in a mobile phone lens production line that is competitive in every second (high productivity) and extremely precise, as long as the error of the bearing itself is assembled When the process is enlarged, I am afraid that it will not be competent. The principle of the backlash of the present invention (eliminating the radial clearance between the inner ring and the outer ring of the bearing) is as follows: First, the distance between the first bearing rolling surface 342 / 342A of the present invention and the axis of the first bearing 24 / 24A is less than the first The radius of a bearing 24 / 24A; and the distance from the second bearing rolling surface 351 / 351A to the second bearing 25 / 25A axis is less than the radius of the second bearing 25 / 25A. As mentioned above, the first bearing rolling surface 342 / 342A of the first top block 34 / 34A is constantly pushed against the first bearing 24 / 24A, so before the driving rod 31 / 31A is actuated, the first top block 34 / 34A pre-concentrates the radial clearance of the first bearing 24 / 24A itself on one side of the top pile, so when the drive rod 31 / 31A is actuated and the first bearing 24 / 24A along the first top block 34 / When the end face of the 34A rolls, the inner ring of the first bearing 24 / 24A, the outer ring and the first top block 34 / 34A are closely attached to each other, so that the shaft can be immediately transmitted through the shaft when the driving rod 31 / 31A is actuated The 23 / 23A drive moves the seat 20 / 20A, while eliminating the radial clearance of the first bearing 24 / 24A, increasing the density of the processing machine. The principle of the second bearing 25 / 25A backlash is the same as the principle of the first bearing 24 / 24A backlash.

Since the present invention is a two-way repeated driving of the movable seat 20 / 20A, if only a single bearing is provided, the purpose of the backlash cannot be achieved, because the two top blocks are simultaneously pressed against two points of any diameter of the bearing, both sides. The forces will cancel each other out, and the play in the bearing will instead move at both ends, completely losing the function of the backlash, and the top block in the opposite direction of the opposite direction will provide unnecessary friction to the rolling bearings. Not only does it lose the effect of anti-backlash, it is more likely to cause slippage between the bearing and the actuating top block, which not only does not improve the accuracy, but expands the angle adjustment error of the moving seat 20/20A.

Advantages of the Invention: The "precision sliding table with angle adjustment function" disclosed in the present invention mainly relates to the type and the interlocking relationship of the innovative and unique structure such as the bearing and the top block, so that the present invention is compared with the prior art. In the conventional structure, the play of the bearing can be moved to the non-active side by the constant pushing action between the top block and the corresponding bearing before the operation, and the inner ring and the outer ring of the bearing can be constantly fixed. Corresponding to the corresponding top block, the practicality and progress of improving the precision of processing are achieved.

10, 10A‧‧‧ Base 11‧‧‧ Chute 20, 20A‧‧‧Moving seat 21, 21A‧‧‧Datum 22.‧‧‧Slide 23, 23A‧‧‧ shaft 231‧‧‧ horizontal part 232 ‧‧‧Vertical part 24,24A‧‧‧First bearing 25,25A‧‧‧Second bearing 30, 30A‧‧‧Linear drive 31, 31A‧‧‧ Drive rod 32, 32A‧‧‧ drive seat 33, 33A‧‧‧ Groove 34, 34A‧‧‧ first top block 341‧‧ ‧ 342, 342A‧‧‧ first bearing rolling surface 35, 35A‧‧‧ second top block 351, 351A‧‧ Two-bearing rolling surface 40‧‧‧X-axis moving device 50‧‧‧Y-axis moving device A, B, C, D, E, F‧‧‧ arrow

Figure 1 is a perspective view of a first preferred embodiment of the present invention. Fig. 2 is a partial enlarged view of Fig. 1 of the present invention. Figure 3 is a plan view of a first preferred embodiment of the present invention. Fig. 4 is a partial enlarged view of Fig. 3 of the present invention. Figure 5 is a partial exploded perspective view of a first preferred embodiment of the present invention. Figure 6 is a schematic view showing the operation of the first preferred embodiment of the present invention. Figure 7 is a perspective view of a second preferred embodiment of the present invention. Fig. 8 is a partially enlarged view of Fig. 7 of the present invention. Figure 9 is a side view of a second preferred embodiment of the present invention. Fig. 10 is a partially enlarged view of Fig. 9 of the present invention. 11-12 are schematic views showing the operation of the second preferred embodiment of the present invention.

Claims (7)

A precision sliding table with an angle adjustment function includes a base for mounting on a support surface, a movable seat movably mounted on the base, and a linear driving device mounted on the base; The movable seat is disposed as a reference surface, and the linear driving device is connected to the moving base; when the linear driving device reciprocally pulls the moving base, the movable seat can be driven to reciprocate relative to the base And changing the angle of the moving seat relative to the base; wherein: the moving seat is extended with a shaft, and the end of the shaft is provided with a first bearing and a second bearing by the inner and outer sleeves; The free end of the linear driving device is provided with a driving seat; the driving base is formed with a groove, and the first bearing and the second bearing system are simultaneously accommodated in the groove; A first top block and a second top block are fixed; the first top block and the second top block are respectively oppositely fixed to the first bearing and the second bearing. The precision sliding table with the angle adjustment function described in claim 1, wherein the first top block and the second top block are respectively formed with a first bearing rolling surface and a second bearing rolling surface. The precision sliding table with an angle adjustment function according to claim 2, wherein the distance from the first bearing rolling surface to the first bearing axis is smaller than the radius of the first bearing; and the second bearing rolling surface The distance to the second bearing axis is less than the radius of the second bearing. The precision sliding table with an angle adjustment function as described in claim 1, 2 or 3, wherein the free end of the first top block is provided with a bump that abuts against the first bearing, the bump The first top block is prevented from contacting the second bearing; the first bearing rolling surface is formed on an end surface of the bump. The precision sliding table with an angle adjustment function according to claim 4, wherein the first top block and the second top block are in the same plane as the axis of the shaft, and the plane is parallel to the driving The axis of action of the rod. A precision sliding table with an angle adjustment function as described in claim 1, 2 or 3, wherein the shaft is an L-shaped structure and includes a horizontal portion and a vertical portion; the horizontal portion is The first bearing and the second bearing are sequentially mounted on the vertical portion. The precision sliding table with the angle adjustment function described in claim 6 , wherein an X-axis moving device and a Y-axis moving device are further disposed between the base and the moving base, and the moving seat is screwed on The Y-axis moving device is mounted on the Y-axis moving device laterally.