CN211192918U

CN211192918U - Adjustable screw supporting mechanism

Info

Publication number: CN211192918U
Application number: CN201921610276.6U
Authority: CN
Inventors: 陈辉昌
Original assignee: Suzhou Dasiyuan Machinery Co ltd
Current assignee: Suzhou Dasiyuan Machinery Co ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-08-07
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses an adjustable screw rod supporting mechanism in the technical field of adjustable screw rod supporting mechanisms, the bottom center of an upper seat is fixedly provided with an upper spacing ring, a guide shaft is arranged between a lower spacing ring and the upper spacing ring, the bottom of the lower seat is screwed with an adjusting disk matched with the lower spacing ring, the left side and the right side of the inner cavity bottom of a machine tool base are fixedly provided with first adjusting screw rods, the top end of each first adjusting screw rod is screwed with a supporting cylinder abutting against the bottom of the adjusting disk, the left side and the right side walls of the inner cavity of the machine tool base are respectively provided with a second adjusting screw rod through the movable assembly of a bearing, the opposite end of each second adjusting screw rod is screwed with an adjusting block arranged between the lower seat and the adjusting disk, the top center of the upper seat is provided with a screw rod, the left side and the right side of the top of the upper seat are respectively provided with a rolling body matched with the screw rod, thereby realize limiting displacement to the adjustment disk, effectively improved the efficiency of longmen processing.

Description

Adjustable screw supporting mechanism

Technical Field

The utility model relates to a screw rod supporting mechanism technical field with adjustable specifically is a screw rod supporting mechanism with adjustable.

Background

When the length of the screw rod of the gantry machining center exceeds 4m, the screw rod can generate sagging deformation due to span and dead weight during horizontal installation, so that the radial runout amplitude of the screw rod during high-speed rotation is increased, the precision of a machine tool is influenced, the service life of the screw rod is influenced, moreover, most screw rod supporting mechanisms of the existing gantry machining center adopt a mechanical spring supporting device and a hydraulic control supporting device, but the existing mechanical spring supporting device, the elasticity of the spring can be changed along with the increase of the using times, the supporting force is not easy to be adjusted, the control quantity can not be accurately grasped when the screw rod is adjusted, so the adjustability is not high, the hydraulic control supporting device is complex to install, has larger volume, is easy to damage a hydraulic element and an induction element, has higher cost, under the condition of low adjustment degree, the reliability is poor, and therefore, an adjustable screw rod supporting mechanism is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a screw rod supporting mechanism with adjustable to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an adjustable screw supporting mechanism comprises a machine tool base, wherein a lower seat is fixedly connected to the machine tool base through a fastening stud, an upper seat is assembled in the lower seat, a lower spacing ring is movably assembled at the bottom of the lower seat, an upper spacing ring is fixedly assembled at the center of the bottom of the upper seat, a guide shaft is assembled between the lower spacing ring and the upper spacing ring, a disc spring mechanism arranged between the lower spacing ring and the upper spacing ring is assembled on the outer wall of the guide shaft, an adjusting disc matched with the lower spacing ring is screwed at the bottom of the lower seat, first adjusting screws are fixedly arranged on the left side and the right side of the bottom of an inner cavity of the machine tool base, a supporting cylinder abutted against the bottom of the adjusting disc is screwed at the top ends of the first adjusting screws, second adjusting screws are movably assembled on the left side wall and the right side wall of the inner cavity of the machine tool base through bearings, and adjusting blocks arranged between the lower seat and the adjusting disc are screwed at the opposite ends of the second adjusting screws, the top center department of going up the seat is equipped with the lead screw, the top left and right sides of going up the seat all is provided with the rolling element with lead screw looks adaptation.

Preferably, the bottom center of the lower seat is provided with a guide channel, a circular channel matched with the outer wall of the lower spacer ring is arranged above the inner wall of the guide channel, and a thread section matched with the adjusting disc is arranged below the inner wall of the guide channel.

Preferably, the adjusting disk comprises a threaded connection column in threaded connection with the threaded section, a fixed disk is fixedly welded at the bottom end of the threaded connection column, and the outer diameter of the fixed disk is larger than the aperture of the guide channel.

Preferably, an O-shaped sealing rubber ring is embedded at the assembly position of the lower seat and the upper seat, and a limiting groove matched with the upper spacing ring is formed in the center of the bottom of the lower seat.

Preferably, the inner cavity of the supporting cylinder is provided with a thread through hole matched with the first adjusting screw, and the top of the supporting cylinder is arc-shaped.

Preferably, the adjusting block is a trapezoidal sliding block, the right-angle side of the adjusting block is assembled at the bottom of the lower seat in a sliding mode, and a threaded channel matched with the second adjusting screw rod is formed in the inner cavity of the adjusting block.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of reasonable design, lower seat is fixed on the machine tool base through the fastening screw bolt, two sets of rolling elements arranged at the top of the upper seat are used for supporting the screw rod, the O-shaped sealing rubber ring between the upper seat and the lower seat can play the roles of sealing, water proofing and dust proofing, the upper spacing ring and the lower spacing ring play the role of positioning, the lower spacing ring can be supported through the spiro union of the adjusting disc and the bottom of the lower seat, the length of the adjusting disc nested in the lower seat can be realized through rotating the adjusting disc, the axle distance between the rolling elements and the screw rod can be adjusted through the transmission effect of the lower spacing ring, the guide shaft and the upper spacing ring, thereby realizing the adjustment of the supporting force when the elasticity of the disc spring mechanism changes or the sag amount of the screw rod changes, meanwhile, the support cylinder can be enabled to realize the support of the adjusting disc at the bottom of the adjusting disc by utilizing the spiro union effect of the support cylinder and the first adjusting screw rod, in addition, the second adjusting screw rod is rotated, the adjusting block is enabled to be inserted between the adjusting disc and the lower seat through the screw connection effect of the second adjusting screw rod and the adjusting block, the adjusting disc can be supported, the limiting effect on the adjusting disc is achieved, and the gantry machining efficiency is effectively improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: the device comprises a machine tool base 1, a fastening stud 2, a lower seat 3, an upper seat 4, a lower spacer ring 5, a guide shaft 6, an upper spacer ring 7, a disc spring mechanism 8, an adjusting disc 9, a first adjusting screw rod 10, a support cylinder 11, a second adjusting screw rod 12, an adjusting block 13, a screw rod 14 and a rolling body 15.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: an adjustable screw supporting mechanism comprises a machine tool base 1, a lower seat 3 is fixedly connected to the machine tool base 1 through a fastening stud 2, an upper seat 4 is assembled in the lower seat 3, a lower spacing ring 5 is movably assembled at the bottom of the lower seat 3, an upper spacing ring 7 is fixedly assembled at the center of the bottom of the upper seat 4, a guide shaft 6 is assembled between the lower spacing ring 5 and the upper spacing ring 7, a disc spring mechanism 8 arranged between the lower spacing ring 5 and the upper spacing ring 7 is assembled on the outer wall of the guide shaft 6, an adjusting disc 9 matched with the lower spacing ring 5 is screwed at the bottom of the lower seat 3, first adjusting screws 10 are fixedly arranged at the left side and the right side of the bottom of an inner cavity of the machine tool base 1, supporting cylinders 11 abutted against the bottom of the adjusting disc 9 are screwed at the top ends of the first adjusting screws 10, second adjusting screws 12 are movably assembled on the left side wall and the right side wall of the inner cavity of the machine tool base 1 through bearings, and adjusting blocks 13 arranged between the lower seat 3 and the adjusting disc 9 are screwed at the, the center of the top of the upper seat 4 is provided with a screw 14, the left side and the right side of the top of the upper seat 4 are both provided with rolling bodies 15 matched with the screw 14, the lower seat 3 is fixed on a machine tool base 1 through a fastening stud 2, two groups of rolling bodies 15 arranged on the top of the upper seat 4 are used for supporting the screw 14, an O-shaped sealing rubber ring between the upper seat 4 and the lower seat 3 can play a role of sealing, water and dust prevention, the upper spacer ring 7 and the lower spacer ring 5 play a role of positioning, meanwhile, the lower spacer ring 5 can be supported through the screw connection of the adjusting disc 9 and the bottom of the lower seat 3, the length of the adjusting disc 9 nested in the lower seat 3 can be adjusted through rotating the adjusting disc 9, the shaft distance between the rolling bodies 15 and the screw 14 can be adjusted through the transmission effect of the lower spacer ring 5, the guide shaft 6 and the upper spacer ring 7, and therefore, when the elasticity of the disc spring mechanism 8 changes or the drooping amount of, adjust the support dynamics, simultaneously through rotating a support section of thick bamboo 11, can utilize the spiro union effect of a support section of thick bamboo 11 and first adjusting screw 10 to make support section of thick bamboo 11 can hug closely and realize the support to adjustment disk 9 in adjustment disk 9 bottom, in addition, rotate second adjusting screw 12, the spiro union effect through second adjusting screw 12 and regulating block 13 makes regulating block 13 peg graft between adjustment disk 9 and lower 3, can realize the support to adjustment disk 9, thereby realize limiting displacement to adjustment disk 9, the efficiency of longmen processing has effectively been improved.

Referring to fig. 1, a guide channel is formed in the center of the bottom of the lower seat 3, a circular channel matched with the outer wall of the lower spacer ring 5 is arranged above the inner wall of the guide channel, and a thread section matched with the adjusting disc 9 is arranged below the inner wall of the guide channel;

referring to fig. 1, the adjusting plate 9 includes a screw connection column screwed with the screw thread section, and a fixing plate is fixedly welded at the bottom end of the screw connection column, and the outer diameter of the fixing plate is larger than the aperture of the guide channel;

an O-shaped sealing rubber ring is embedded at the assembly position of the lower seat 3 and the upper seat 4, and a limiting groove matched with the upper spacing ring 7 is formed in the center of the bottom of the lower seat 3, so that the effects of sealing, water proofing and dust proofing can be achieved;

the inner cavity of the supporting cylinder 11 is provided with a threaded through hole matched with the first adjusting screw 10, and the top of the supporting cylinder 11 is arc-shaped, so that the supporting cylinder 11 can be tightly attached to the bottom of the adjusting disc 9 to support the adjusting disc 9;

regulating block 13 is trapezoidal slider, and the right angle limit slip assembly is in the bottom of lower seat 3, and the threaded passage with 12 looks adaptations of second adjusting screw is seted up to the inner chamber of regulating block 13, and the spiro union effect through second adjusting screw 12 and regulating block 13 makes regulating block 13 peg graft between adjusting disk 9 and lower seat 3, can realize the support to adjusting disk 9 to realize limiting displacement to adjusting disk 9.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a screw rod supporting mechanism with adjustable, includes lathe base (1), its characterized in that: the machine tool base (1) is fixedly connected with a lower seat (3) through a fastening stud (2), an upper seat (4) is assembled in the lower seat (3), a lower spacing ring (5) is movably assembled at the bottom of the lower seat (3), an upper spacing ring (7) is fixedly assembled at the center of the bottom of the upper seat (4), a guide shaft (6) is assembled between the lower spacing ring (5) and the upper spacing ring (7), a spring mechanism (8) arranged between the lower spacing ring (5) and the upper spacing ring (7) is assembled on the outer wall of the guide shaft (6), an adjusting disc (9) matched with the lower spacing ring (5) is screwed at the bottom of the lower seat (3), first adjusting screws (10) are fixedly arranged on the left side and the right side of the bottom of an inner cavity of the machine tool base (1), and supporting cylinders (11) abutted against the bottom of the adjusting disc (9) are screwed at the top ends of the first adjusting screws (10), all be equipped with second adjusting screw (12) through the bearing activity on the lateral wall about the inner chamber of lathe base (1), the relative one end spiro union of second adjusting screw (12) has setting up regulating block (13) between lower seat (3) and adjusting disk (9), the top center department of going up seat (4) is equipped with lead screw (14), the top left and right sides of going up seat (4) all is provided with rolling element (15) with lead screw (14) looks adaptation.

2. The adjustable screw support mechanism of claim 1, wherein: the bottom center of the lower seat (3) is provided with a guide channel, a round channel matched with the outer wall of the lower spacer ring (5) is arranged above the inner wall of the guide channel, and a thread section matched with the adjusting disc (9) is arranged below the inner wall of the guide channel.

3. The adjustable screw support mechanism of claim 2, wherein: the adjusting plate (9) comprises a threaded connection column in threaded connection with the threaded section, a fixed plate is fixedly welded at the bottom end of the threaded connection column, and the outer diameter of the fixed plate is larger than the aperture of the guide channel.

4. The adjustable screw support mechanism of claim 1, wherein: an O-shaped sealing rubber ring is embedded in the assembly position of the lower seat (3) and the upper seat (4), and a limiting groove matched with the upper spacing ring (7) is formed in the center of the bottom of the lower seat (3).

5. The adjustable screw support mechanism of claim 1, wherein: the inner cavity of the supporting cylinder (11) is provided with a thread through hole matched with the first adjusting screw rod (10), and the top of the supporting cylinder (11) is arc-shaped.

6. The adjustable screw support mechanism of claim 1, wherein: the adjusting block (13) is a trapezoidal sliding block, the right-angle side of the adjusting block is assembled at the bottom of the lower seat (3) in a sliding mode, and a threaded channel matched with the second adjusting screw rod (12) is formed in the inner cavity of the adjusting block (13).