CN220145890U - Gap adjusting structure of rotary platform - Google Patents

Abstract

The utility model relates to the field of machining, in particular to a gap adjusting structure of a rotary platform, which comprises a base, wherein the base is provided with the rotary platform, the rotary platform is rotationally connected with the base, a guide rail and a screw rod are arranged on the base, a sliding seat is arranged on the guide rail, the sliding seat is in sliding connection with the guide rail, the screw rod is arranged in parallel with the guide rail, the screw rod penetrates through the sliding seat and is connected with a transmission, the screw rod drives the sliding seat to linearly move along the guide rail, one side of the sliding seat is provided with a fixed pressing block, the other side of the sliding seat is provided with a sliding pressing block, the fixed pressing block is oppositely arranged with the sliding pressing block, the side edge of the rotary platform is provided with a bearing group, the bearing group is positioned between the fixed pressing block and the sliding pressing block, one side of the sliding pressing block is also provided with an adjusting block, and the adjusting mechanism is arranged on the adjusting block to adjust the distance between the fixed pressing block and the sliding pressing block. The utility model solves the problem of the rotating clearance of the rotating platform, can adjust to zero clearance and improves the rotating precision of the rotating platform.

Description

Gap adjusting structure of rotary platform

Technical Field

The utility model relates to the field of machining of sliding tables, in particular to a gap adjusting structure of a rotary platform.

Background

The sliding table is a precise component, along with the continuous development of industrialization, the machining precision of machining is continuously improved, and the requirements of people on the repeated driving small-angle rotating sliding table are higher and higher. The rotary platform of the traditional sliding table has a rotary gap due to installation errors, for example, CN212601805U discloses an alignment sliding table which comprises a base body and a rotary seat, wherein the rotary seat is movably connected with the base body through a transmission piece and can rotate relative to the base body; the seat body is connected with a linear module, the linear module is provided with a linear slide block capable of moving linearly, the linear slide block is connected with a connecting shaft, and the connecting shaft sleeve is provided with two rotating bodies; the rotary seat is connected with two stress blocks which are arranged at intervals, namely a first stress block and a second stress block, the two rotary bodies are respectively positioned between the two stress blocks, the first stress block is abutted with one rotary body, the second stress block is abutted with the other rotary body, the first stress block and the second stress block are not adjustable in distance, a gap exists between the rotary body and the first stress block and between the rotary body and the second stress block, and therefore when the linear module is driven to rotate left and right, the rotary angle and the set value of the linear module are unequal, the rotary precision is inaccurate, and the error is large.

Disclosure of Invention

The utility model provides a gap adjusting structure of a rotary platform, which can solve the rotary gap of the rotary platform and improve the rotary precision.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a gap adjustment structure of rotary platform, includes the base, be equipped with rotary platform on the base, rotary platform rotates with the base to be connected, rotary platform is rectangular form, be equipped with guide rail and lead screw on the base, be equipped with the slide on the guide rail, slide and guide rail sliding connection, lead screw and guide rail parallel arrangement, the lead screw runs through the slide to be connected with the slide transmission, lead screw drive slide is along guide rail linear motion, be equipped with one side on the slide and be equipped with fixed briquetting, the opposite side is equipped with the slip briquetting, fixed briquetting sets up with the slip briquetting relatively, rotary platform's side position is equipped with the bearing group, the bearing group is located between fixed briquetting and the slip briquetting, slip briquetting one side still is equipped with the regulating block, be equipped with the interval between adjustment mechanism adjustment fixed briquetting and the slip briquetting on the regulating block.

Further, flanges are arranged on two symmetrical side edges of the sliding seat, a sliding groove is formed between the flanges on two side edges of the sliding seat, and the sliding pressing block and the fixing pressing block are both located in the sliding groove.

Further, the bearing group comprises a first bearing and a second bearing, the first bearing and the second bearing are fixed on the rotating platform through equal shoulder screws, and the first bearing and the second bearing are both in rotary connection with the equal shoulder screws and can rotate freely.

Further, the adjusting block is fixed on the sliding seat, the adjusting mechanism comprises an adjusting hole and an adjusting bolt, the adjusting hole penetrates through the adjusting block, the adjusting bolt is located in the adjusting hole and is in threaded connection with the adjusting hole, and one end of the adjusting bolt outwards extends from the adjusting hole to be in butt joint with the sliding press block.

The utility model has the beneficial effects that: the equipment of this structure is with being connected, reaches through fixed briquetting one side of propping up the bearing group earlier during the use, again leads to rotatory adjusting bolt adjustment slip briquetting, makes it remove to fixed briquetting, and slip briquetting and fixed briquetting are supported the bearing group both sides respectively at last, reach the clearance elimination, can realize zero clearance adjustment, improve rotary platform's rotation precision, and when rotary platform transmitted, first bearing and the second bearing of its bearing group can free rotation, avoid both sides briquetting extrusion to produce the friction, further promoted rotary platform's smoothness and rotation precision.

Drawings

Fig. 1 is a schematic perspective view of a rotary platform.

Fig. 2 is a gap adjusting structure.

The figure is marked, 1-base; 2-rotating a platform; 3-a guide rail; 4-a screw rod; 5-a slide; 21-a first bearing; 22-a second bearing; 51-fixing the pressing block; 52-sliding press blocks; 53-a regulating block; 54-flanges; 531-adjustment holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, the terms "first," "second," "superior," "inferior," and the like are used for descriptive purposes only and may be used simply to more clearly distinguish between different components and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-2, a gap adjusting structure of a rotary platform, which comprises a base 1, be equipped with rotary platform 2 on the base 1, rotary platform 2 rotates with base 1 to be connected, rotary platform 2 is the rectangle form, be equipped with guide rail 3 and lead screw 4 on the base 1, be equipped with slide 5 on the guide rail 3, slide 5 and guide rail 3 sliding connection, lead screw 4 and guide rail 3 parallel arrangement, lead screw 4 runs through slide 5 to slide 5 is connected with the transmission, and lead screw 4 realizes driving slide 5 along guide rail rectilinear motion through external connection motor, slide 5 top one side is equipped with fixed briquetting 51, and the opposite side is equipped with sliding briquetting 52, fixed briquetting 51 sets up with sliding briquetting 52 relatively, the side position of rotary platform 2 is equipped with the bearing group, the bearing group is located between fixed briquetting 51 and the sliding briquetting 52, sliding briquetting 52 one side still is equipped with adjusting block 53, be equipped with adjustment mechanism on the adjusting block 53 and be used for adjusting the interval between fixed briquetting and the sliding briquetting, adjustment block 53 is fixed on slide 5, adjustment mechanism includes adjusting hole 531 and adjusting bolt 531, adjusting bolt 531 and adjusting bolt 531 do not stretch out of adjusting bolt 531 and stretch out from the adjusting bolt 531 to one end of adjusting hole (the adjusting bolt 531 is stretched out from the adjusting bolt hole 531).

The symmetrical flanges 54 are arranged on the two symmetrical sides of the sliding seat 5, the flanges 54 on the two symmetrical sides form a sliding groove, the sliding press block 51 and the fixed press block 52 are both positioned in the sliding groove, the fixed press block 51 is fixed at one end of the sliding groove, the sliding press block is positioned at the other end of the sliding groove, and the sliding press block 51 and the fixed press block 52 are prevented from transversely shifting, so that the sliding press block 52 can only linearly move along the sliding groove.

Referring to fig. 2, the bearing set includes a first bearing 21 and a second bearing 22, where the first bearing 21 and the second bearing 22 are fixed on the rotary platform 2 by means of shoulder screws, and the first bearing 21 and the second bearing 22 both use deep groove ball bearings, and when the sliding seat 5 drives the rotary platform 2 to rotate by means of the bearing set, the first bearing 21 and the second bearing 22 can both freely rotate on the shoulder screws, so that smoothness and stability of rotation of the rotary platform 2 are ensured, and rotation accuracy is further improved.

Specifically, a side of the bearing set is propped against by the fixed pressing block 51, then the adjusting bolt in the adjusting hole 531 is screwed, so that the sliding pressing block 52 moves linearly along the sliding groove and props against the other side of the bearing set, the rotating gap is eliminated by adjusting the sliding pressing block, zero gap adjustment can be realized, the rotating precision of the rotating platform 2 is improved, the problem that the rotating angle is inaccurate due to the fact that the gap exists between the bearing set and the pressing block is avoided, the screw rod 4 adopts a ball screw rod, the sliding seat 5 adopts a nut sliding seat, one end of the screw rod 4 is externally connected with a motor (not labeled in the drawing), the motor drives the sliding seat 5 to reciprocate linearly back and forth in the guide rail 3 through the screw rod 4, the sliding seat 5 drives the bearing set to move, and left and right round rotation of the rotating platform is realized.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (5)

1. The utility model provides a clearance adjustment structure of rotary platform, includes base (1), its characterized in that: be equipped with rotary platform (2) on base (1), rotary platform (2) are connected with base (1) rotation, rotary platform (2) are the rectangle form, be equipped with guide rail (3) and lead screw (4) on base (1), be equipped with slide (5) on guide rail (3), slide (5) and guide rail (3) sliding connection, lead screw (4) and guide rail (3) parallel arrangement, lead screw (4) run through slide (5) to with slide (5) transmission connection, lead screw (4) drive slide (5) are along guide rail linear motion, slide (5) top one side is equipped with fixed briquetting (51), and the opposite side is equipped with sliding briquetting (52), fixed briquetting (51) are relative to sliding briquetting (52) set up, the side position of rotary platform (2) is equipped with bearing set, bearing set is located between fixed briquetting (51) and sliding briquetting (52), sliding briquetting (52) one side still is equipped with regulating block (53), be equipped with on regulating block (53) and be used for between fixed briquetting and the adjustment.

2. The gap adjusting structure of a rotary platform according to claim 1, wherein: the sliding seat is characterized in that flanges (54) are arranged on two symmetrical side edges of the sliding seat (5), a sliding groove is formed between the flanges (54) on the two side edges of the sliding seat, and the sliding press block (52) and the fixed press block (51) are both positioned in the sliding groove.

3. The gap adjusting structure of a rotary platform according to claim 1, wherein: the bearing set comprises a first bearing (21) and a second bearing (22).

4. A gap adjustment structure for a rotary platform according to claim 3, characterized in that: the first bearing (21) and the second bearing (22) are fixed on the rotating platform (2) through equal shoulder screws.

5. The gap adjusting structure of a rotary platform according to claim 1, wherein: the adjusting block (53) is fixed on the sliding seat (5), the adjusting mechanism comprises an adjusting hole (531) and an adjusting bolt, the adjusting hole (531) penetrates through the adjusting block (53), the adjusting bolt is located in the adjusting hole (531) and is in threaded connection with the adjusting hole, and one end of the adjusting bolt outwards extends from the adjusting hole (531) to be in butt joint with the sliding press block (52).