CN214186287U

CN214186287U - Digit control machine tool lead screw prestretches mechanism convenient to maintenance

Info

Publication number: CN214186287U
Application number: CN202023098369.0U
Authority: CN
Inventors: 孙宇; 汪泳; 孟祥海; 赵士明; 彭飞
Original assignee: Tangshan Industrial Vocational And Technical College Tangshan Senior Technical School Hebei Province
Current assignee: Tangshan Industrial Vocational And Technical College Tangshan Senior Technical School Hebei Province
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-09-14
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a digit control machine tool lead screw prestretches mechanism convenient to maintenance, comprising a supporting seat, install the motor on the supporting seat, install the lead screw on the motor, threaded connection has the sliding seat on the lead screw, the both sides that the supporting seat corresponds the lead screw all are fixed with the gib block, one side fixedly connected with fixed backing plate that the supporting seat is located the lead screw, be fixed with the side shield on the fixed backing plate, two connecting cylinders of fixedly connected with symmetry on the side shield, sliding connection has the slide shaft, two in the connecting cylinder keep away from the common fixedly connected with lantern ring of one end of connecting cylinder on the slide shaft. The utility model discloses a nut rotates, and when the nut rotated and removed, can drive sleeve, branch, sliding shaft and the lantern ring and remove, and the sleeve is along with removing the cover on clamping screw for the pretightning force size of lead screw obtains adjusting, and lantern ring cooperation limit bolt plays to prestretch the tight effect to the lead screw, easy operation.

Description

Digit control machine tool lead screw prestretches mechanism convenient to maintenance

Technical Field

The utility model relates to a digit control machine tool technical field especially relates to a digit control machine tool lead screw prestretches mechanism convenient to maintenance.

Background

In the using process of the numerical control machine tool, a screw rod transmission system is often used, and the screw rod drives an object to move, so that the object does not need to be moved manually, time and labor are saved, the screw rod is easy to extend due to friction and heating of the screw rod in the working process of the screw rod, and the screw rod is generally required to be pre-tensioned in order to compensate the thermal elongation of the screw rod;

and traditional lead screw pretension mechanism is in the use, if the lead screw that needs is worn and torn and is changed, has the structure complicacy, and the lead screw maintains the problem of difficulty, influences operating personnel's convenient degree of maintenance.

Disclosure of Invention

The utility model aims at solving the problem existing in the prior art, and the digit control machine tool lead screw pretension mechanism convenient to maintenance that provides.

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

a numerically-controlled machine tool lead screw pre-tensioning mechanism convenient to maintain comprises a supporting seat, wherein a motor is installed on the supporting seat, a lead screw is installed on the motor, a movable seat is connected onto the lead screw in a threaded manner, guide strips are fixed on two sides, corresponding to the lead screw, of the supporting seat, a fixed backing plate is fixedly connected onto one side, located on the lead screw, of the supporting seat, a side baffle is fixed onto the fixed backing plate, two symmetrical connecting cylinders are fixedly connected onto the side baffle, sliding shafts are connected onto the connecting cylinders in a sliding manner, one ends, far away from the connecting cylinders, of the two sliding shafts are fixedly connected with a lantern ring together, a plurality of limiting screw holes are formed in the lantern ring, a bearing seat is fixed onto one end, far away from the motor, of the lead screw, a supporting rod is fixed between the sliding shafts, a sleeve is fixed onto the supporting rod, a nut is rotatably connected onto the sleeve, and a fixing screw rod is welded in the middle of the side baffle, and the nut is in threaded connection with the fixed screw rod.

Preferably, the sliding shaft is a square shaft body, and the connecting cylinder is provided with a square hole corresponding to the sliding shaft.

Preferably, the bearing seat is positioned in the sleeve ring, and the limit screw holes are positioned on two sides of the bearing seat.

Preferably, the nut corresponds telescopic one end welding and has solid fixed ring, integrated into one piece has the bulge loop on solid fixed ring's the inner wall, the annular groove has been seted up to the position that corresponds the bulge loop on the sleeve, the bulge loop is located the annular groove.

Preferably, the limiting screw hole is in threaded connection with a limiting bolt.

Preferably, the diameter of the fixing screw is smaller than the inner diameter of the sleeve.

Compared with the prior art, the utility model has the following benefits:

1. the utility model has the advantages that the nut is rotated, when the nut is rotated and moved, the sleeve, the supporting rod, the sliding shaft and the sleeve ring can be driven to move, the sleeve is sleeved on the fixed screw rod along with the movement, so that the pretightening force of the screw rod is adjusted, the sleeve ring is matched with the limiting bolt to pre-tension the screw rod, the operation is simple and feasible, the occupied space is smaller, and the adjustment is convenient;

2. through detaching the limiting bolt and twisting the nut, the lantern ring can be separated from the bearing seat, the lead screw is convenient to replace, and the sliding shaft of the square shaft body can avoid the lantern ring from rotating.

Drawings

Fig. 1 is a structural diagram of a numerical control machine tool screw rod pre-tensioning mechanism convenient for maintenance provided by the utility model;

FIG. 2 is an enlarged view of the part A of the pre-tensioning mechanism of the numerical control machine tool lead screw convenient for maintenance provided by the utility model;

fig. 3 is the utility model provides a digit control machine tool lead screw prestretches lantern ring picture of mechanism convenient to maintenance.

In the figure: the guide rail structure comprises a screw rod 1, a guide strip 2, a fixed backing plate 3, a side baffle 4, a fixed screw rod 5, a connecting cylinder 6, a sliding shaft 7, a lantern ring 8, a limit screw hole 9, a bearing seat 10, a support rod 11, a sleeve 12, a fixed ring 13, a nut 14, a convex ring 15 and an annular groove 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a numerical control machine tool lead screw pretension mechanism convenient for maintenance comprises a support seat, a motor is installed on the support seat, a lead screw 1 is installed on the motor, a movable seat is connected on the lead screw 1 by screw threads, guide strips 2 are fixed on the support seat corresponding to two sides of the lead screw 1, a fixed backing plate 3 is fixedly connected on one side of the support seat located on the lead screw 1, a side baffle plate 4 is fixed on the fixed backing plate 3, two symmetrical connecting cylinders 6 are fixedly connected on the side baffle plate 4, sliding shafts 7 are connected in the connecting cylinders 6 in a sliding manner, a lantern ring 8 is fixedly connected on one ends of the two sliding shafts 7 far away from the connecting cylinders 6 together, a plurality of limiting screw holes 9 are arranged on the lantern ring 8, a bearing seat 10 is fixed on one end of the lead screw 1 far away from the motor, a support rod 11 is fixed between the sliding shafts 7, a sleeve 12 is fixed on the support rod 11, a nut 14 is rotatably connected on the sleeve 12, a fixing screw 5 is welded in the middle part of the side baffle plate 4, and nut 14 threaded connection is on clamping screw 5, and sliding seat sliding connection is on gib block 2, and the rotation through nut 14 drives sleeve 12, branch 11, sliding shaft 7 and lantern ring 8 and removes, and lantern ring 8 drives bearing frame 10 and lead screw 1 and prestretches the operation to lead screw 1, can carry out the operation of prestretching to lead screw 1, adjusts the pre-extension volume of lead screw 1.

Further, the sliding shaft 7 is a square shaft body, and the connecting cylinder 6 is provided with a square hole corresponding to the sliding shaft 7, so that the lantern ring 8 is prevented from rotating. The bearing seat 10 is positioned in the lantern ring 8, and the limit screw holes 9 are positioned at two sides of the bearing seat 10. The one end welding that nut 14 corresponds sleeve 12 has solid fixed ring 13, and integrated into one piece has bulge loop 15 on solid fixed ring 13's the inner wall, and annular groove 16 has been seted up to the position that corresponds bulge loop 15 on sleeve 12, and bulge loop 15 is located annular groove 16, through the cooperation of bulge loop 15 and annular groove 16 for when nut 14 rotated, can drive sleeve 12 and take place to remove, rather than rotate. The limiting screw hole 9 is connected with a limiting bolt through threads, and the bearing seat 10 is limited through the limiting bolt, so that the screw rod 1 is pre-tensioned along with the movement of the lantern ring 8. The diameter of the set screw 5 is smaller than the inner diameter of the sleeve 12 so that the sleeve 12 can be moved over the set screw 5.

During the use, the bearing frame 10 of lead screw 1 is located the lantern ring 8, threaded connection has spacing bolt on the spacing screw 9 on the lantern ring 8, then rotate through nut 14, when nut 14 rotates and removes, can drive sleeve 12, branch 11, sliding shaft 7 and lantern ring 8 remove, sleeve 12 is along with removing the cover on clamping screw 5 for the pretightning force size of lead screw 1 obtains adjusting, and when lead screw 1 changed, can dismantle spacing bolt down and twist nut 14 and make the lantern ring 8 leave lead screw 1 can, thereby be convenient for carry out the change work of lead screw 1, the operation is simple and easy.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A numerical control machine screw rod pre-tensioning mechanism convenient to maintain comprises a supporting seat and is characterized in that a motor is mounted on the supporting seat, a screw rod (1) is mounted on the motor, a movable seat is in threaded connection with the screw rod (1), guide strips (2) are fixed on two sides of the supporting seat corresponding to the screw rod (1), a fixed base plate (3) is fixedly connected to one side of the supporting seat, which is located on the screw rod (1), a side baffle plate (4) is fixed on the fixed base plate (3), two symmetrical connecting cylinders (6) are fixedly connected to the side baffle plate (4), sliding shafts (7) are slidably connected in the connecting cylinders (6), a lantern ring (8) is fixedly connected to one end, far away from the connecting cylinders (6), of the two sliding shafts (7) together, a plurality of limiting screw holes (9) are formed in the lantern ring (8), and a bearing seat (10) is fixed to one end, far away from the motor, of the screw rod (1), be fixed with branch (11) between sliding shaft (7), be fixed with sleeve (12) on branch (11), it is connected with nut (14) to rotate on sleeve (12), the middle part welding of side shield (4) has set screw (5), and nut (14) threaded connection is on set screw (5).

2. The screw rod pretensioning mechanism of the numerical control machine tool convenient to maintain according to claim 1, characterized in that the sliding shaft (7) is a square shaft body, and the connecting cylinder (6) is provided with a square hole corresponding to the sliding shaft (7).

3. The numerical control machine screw rod pretensioning mechanism convenient to maintain according to claim 1, characterized in that the bearing seat (10) is positioned in the collar (8), and the limit screw holes (9) are positioned at both sides of the bearing seat (10).

4. The numerical control machine screw rod pretensioning mechanism convenient to maintain according to claim 1, characterized in that one end of the nut (14) corresponding to the sleeve (12) is welded with a fixed ring (13), a convex ring (15) is integrally formed on the inner wall of the fixed ring (13), an annular groove (16) is formed on the sleeve (12) corresponding to the convex ring (15), and the convex ring (15) is positioned in the annular groove (16).

5. The numerically-controlled machine tool screw rod pretensioning mechanism convenient to maintain according to claim 1, characterized in that a limit bolt is in threaded connection with the limit screw hole (9).

6. The numerical control machine screw pre-tensioning mechanism convenient to maintain according to claim 1, characterized in that the diameter of the fixing screw (5) is smaller than the inner diameter of the sleeve (12).