CN205253999U

CN205253999U - Slip layer board structure of thread rolling machine

Info

Publication number: CN205253999U
Application number: CN201520658476.4U
Authority: CN
Inventors: 陈显国
Original assignee: WENZHOU SCREW MANUFACTURING Co Ltd
Current assignee: WENZHOU SCREW MANUFACTURING Co Ltd
Priority date: 2015-08-28
Filing date: 2015-08-28
Publication date: 2016-05-25
Anticipated expiration: 2025-08-28

Abstract

The utility model relates to a slip layer board structure of thread rolling machine, include: install the elasticity reset assembly on the rolling guide of slip thread rolling layer board, elasticity reset assembly include: guide rail hold -down mechanism and elasticity canceling release mechanical system. The utility model discloses a hold -down mechanism and canceling release mechanical system to the compound mode of jackscrew and spring compresses tightly roll guide rail clip. Comparing with the mode of jackscrew with the simple of prior art, can eliminating the rolling guide and in the normal pressure that loses in the twinkling of an eye in service, ensure the rolling element and keep under any circumstance all maintaining the normal pressure between the ware, effectual having avoided because the normal pressure disappears is in the twinkling of an eye caused the rolling element and is kept ware stop motion in the twinkling of an eye, and produce the dislocation, has improved the operational reliability of rolling guide, is that rolling guide work is more stable, has improved productivity ratio.

Description

A kind of slip blade structure of thread rolling machine

Technical field

The utility model relates to a kind of slip blade structure of thread rolling machine, is a kind of frame for movement, is a kind of structure of metal working machine tool, is a kind of frame for movement for thread rolling machine.

Background technology

Between the slip screw plate of traditional thread rolling machine and lathe bed, conventionally use rail plate to be connected, this rail plate has used a lot of years, and its reliability and precision are embodied completely, but rail plate exists the problem that frictional resistance is large. This problem can not be ignored, and particularly modern machine Considering Environmental, emphasizes to increase work efficiency. Rail plate is because frictional force is large, is easier to wearing and tearing, and adjustment after fretting wear is wasted time and energy, and increased processing non-cutting time, further affected the raising of operating efficiency. Thread rolling splint changes into after rolling guide, the excessive problem that rubs is effectively solved, but new problem is that in use moment loses the normal pressure that clamps rolling element to rolling guide sometimes, make rolling element together with retainer orbiting normally, in the time that normal pressure is replied, rolling element and retainer continue operation, but not on correct position, its result often causes retainer to clash into the sealing catch at rolling guide two ends, or cause the damage of catch or retainer, or rolling element is scratched, even make rolling element damage.

Summary of the invention

In order to overcome the problem of prior art, the utility model proposes a kind of slip blade structure of thread rolling machine. Described structure is utilized the compression of spring, under any circumstance all keeps normal pressure, avoids normal pressure disappearance and the problem that causes.

The purpose of this utility model is achieved in that a kind of slip blade structure of thread rolling machine, comprise: be arranged on the elastic reset assembly on the rolling guide between lathe bed and slide thread rolling splint, described elastic reset assembly comprises: guide rail hold-down mechanism and flexible restoring organ.

Further, described guide rail hold-down mechanism is the hollow bolt being threaded with lathe bed and the locknut being threaded with hollow bolt, described flexible restoring organ is arranged on the helical spring at hollow bolt center, and described helical spring and clamping screw together withstand the pressing plate of rolling guide.

Further, described elastic reset assembly also comprises: position-limit mechanism.

Further, described position-limit mechanism comprises: be arranged on the Limit screw at hollow bolt and helical spring center, described Limit screw is threaded with the pressing plate of rolling guide, and described screw rod is provided with two stop nuts of locking mutually.

The beneficial effect that the utility model produces is: the utility model has adopted hold-down mechanism and resetting-mechanism, compresses rolling guide pressing plate with jackscrew and the compound mode of spring. Simple with compared with the mode of jackscrew with prior art, can eliminate rolling guide moment that is in operation loses normal pressure, guarantee under any circumstance all to maintain between rolling element and retainer normal pressure, effectively avoid due to normal pressure pop-off, cause rolling element and retainer moment stop motion, and produce dislocation, improved the operational reliability of rolling guide, be that rolling guide work is more stable, improved productivity ratio.

Brief description of the drawings

Below in conjunction with drawings and Examples, the utility model is described in further detail.

Fig. 1 is the principle schematic of structure described in embodiment mono-of the present utility model;

Fig. 2 A is the schematic diagram of rolling guide rolling element and the alignment of retainer correct position;

Fig. 2 B is rolling guide rolling element and the staggered schematic diagram of retainer correct position;

When Fig. 2 C is rolling guide rolling element and retainer aligned in position, rolling element produces the schematic diagram of skew;

Fig. 2 D be rolling guide rolling element and retainer position when staggered rolling element produce the interference schematic diagram of skew;

Fig. 3 is the schematic diagram of elastic reset assembly described in embodiment bis-of the present utility model, is the enlarged drawing that in Fig. 1, N is ordered;

Fig. 4 is the elastic reset assembly schematic diagram with position-limit mechanism described in embodiment tetra-of the present utility model.

Detailed description of the invention

Embodiment mono-:

The present embodiment is a kind of slip blade structure of thread rolling machine, as shown in Figure 1. The present embodiment comprises: be arranged on the elastic reset assembly on the rolling guide 1 between lathe bed 7 and slide thread rolling splint 8, described elastic reset assembly comprises: guide rail hold-down mechanism 2 and flexible restoring organ 3.

Existing rolling guide all uses the mode of jackscrew, uses two pressing plates of guide rail to clamp rolling element, has eliminated the gap between rolling element and pressing plate simultaneously. Except eliminating gap, jackscrew also has effect of contraction, and unidirectional constraint pressing plate clamps rolling element, for rolling element rolls normal pressure is provided on pressing plate. In actual use, for example, between two objects (: the slide thread rolling splint of slip screw plate 10 is installed and the lathe bed of fixing screw plate 5 is installed) of relative motion may be because the effect of certain power vertical with the direction of motion, produce the tendency that moment separates, cause two pressing plates of rolling guide can not clamp rolling element in moment, two block pressur plates can not provide normal pressure for rolling element in certain moment in other words, make rolling element in a kind of lax state, rolling element in this case and retainer can moment stop motions. The harmfulness of rolling element and retainer moment stop motion is, rolling element and retainer are not on correct position, but certain position of having staggered, as shown in Figure 2, when in Fig. 2, A represents lower platen alignment, rolling element and retainer are positioned at the position at lower platen center, correct position, represents in B that upper lower platen relatively moves, the motion that rolling element and retainer are correct, still keep correct position, do not interfere with each other with the catch at two ends. While representing to occur the situation of moment normal pressure disappearance in C, there is position skew in rolling element and retainer, and in the time that upper lower platen relatively moves, retainer and catch have occurred to collide and disturbed. Be typically provided with the catch that maintains retainer at the two ends of rolling guide, if retainer can not maintain correct position, just may collide with catch, the result of impact or be that catch damages, or is that retainer damages together with rolling element. If do not establish catch, in the situation that repeatedly moment loses normal pressure, retainer connection is likely run out of pressing plate completely with a succession of rolling element, causes equally the damage of rolling guide.

Due to, the wedge effect of thread rolling splint, under the effect of thread rolling splint gravity (as shown in the arrow G in Fig. 1), the normal pressure of lower guideway 6 and side rails 9 is maintained always, does not have the phenomenon that moment loses. But the situation of upper rail is just different. Due to the factor of included angle of thread, in thread rolling processing, workpiece 4 also can have a downward active force (as shown in the arrow F in Fig. 1) to slip screw plate, by whole thread rolling splint in moment of thread rolling to pressing down, this has just caused two block pressur plate moments of upper rail to lose normal pressure, occurs the phenomenon of rolling element and retainer moment stop motion. Tradition is used the thread rolling machine of rail plate, does not worry the separation of guide pass, substantially without any impact. And for rolling guide, moment loses normal pressure and just likely causes the damage of rolling guide. Therefore, this is the peculiar problem of thread rolling machine that uses rolling guide.

In order to address this problem, the present embodiment adopts Liao Liangtao mechanism: guide rail hold-down mechanism and flexible restoring organ.

Described guide rail hold-down mechanism can be traditional jackscrew, or other forms of rigid constraint, for the pressing plate of rolling guide is made to one direction rigid constraint. This one direction rigid constraint is fixing after can adjusting in the situation that rolling guide is static, and normal normal pressure is provided in the motion process of rolling guide, maintains the normal operation of rolling element and retainer.

Flexible restoring organ uses spring to make one direction flexible constraint to pressing plate. Provide an elastic pressure within the specific limits to guide rail clip, with the normal pressure of two block pressur plates to middle rolling element that be maintained within a certain range, lose the problem of normal pressure to solve upper rail moment in thread rolling process. Flexible restoring organ can use helical spring, also can use other forms of elastomeric material to realize, and is in a word to use elastomeric material to maintain the normal pressure of rolling guide, ensures that rolling element and retainer maintain in correct range of movement.

In actual applications, the elastic reset assembly that not only will install on rolling guide described in the present embodiment also will be installed conventional jackscrew simultaneously, to provide evenly and the constraint of sufficient intensity for the pressing plate of rolling guide.

Embodiment bis-:

The present embodiment is the improvement of embodiment mono-, the refinement of embodiment mono-about elastic reset assembly, elastic reset assembly described in the present embodiment is the hollow bolt 11 being threaded with lathe bed and the locknut 1101 being threaded with hollow bolt, described flexible restoring organ is arranged on the helical spring at hollow bolt center, described helical spring and clamping screw together withstand the pressing plate of rolling guide, as shown in Figure 3.

In order to facilitate install and adjust, the present embodiment uses helical spring as resetting-mechanism, and helical spring placement space is placed in a hollow bolt, uses hollow bolt as jackscrew. Hollow bolt and helical spring withstand on the pressing plate of rolling guide simultaneously, and hollow bolt is as the constraint of rigidity, and helical spring is as flexible constraint, and both are in conjunction with the uninterrupted normal pressure forming rolling guide pressing plate.

Embodiment tri-:

The present embodiment is the improvement to above-described embodiment, is the refinement of above-described embodiment about elastic reset assembly. Elastic reset assembly described in the present embodiment also comprises: position-limit mechanism.

Although flexible restoring organ can eliminate moment produce pressing plate and rolling element between gap, produce certain normal pressure, but in use, pressing plate and rolling element always to wear and tear, can produce permanent gap, and to depend merely on elastic reset be to deal with problems in this gap.

The effect of position-limit mechanism is, the gap between pressing plate and the rolling element of control rolling guide. When this gap is not the gap of moment, but when a permanent gap, just must be eliminated by adjusting jackscrew, otherwise static lower platen and rolling element are also gapped. The size of elastic reset can be controlled by position-limit mechanism, the adjustment of jackscrew will be carried out once exceed this scope.

Position-limit mechanism described in the present embodiment can have various ways, as arrange can two-way restriction pressing plate jackscrew, or use separately a caging bolt, spacing spiral is connected with pressing plate, make caging bolt can limit the position of pressing plate, and use certain adjustment structure, so as to adjusting the position of pressing plate.

Embodiment tetra-:

The present embodiment is the improvement of embodiment tri-, is the refinement of embodiment tri-about position-limit mechanism. Position-limit mechanism described in the present embodiment comprises: the Limit screw 1201 that is arranged on hollow bolt and helical spring center, described Limit screw is threaded with the pressing plate of rolling guide, described screw rod is provided with two stop nuts 1202 of locking mutually, as shown in Figure 4.

Pressing plate is still beaten blind hole and is threaded, and one end of Limit screw (bottom) is threaded with pressing plate, and Limit screw is twisted extremely on pressing plate, and Limit screw just can all retrain pressing plate up and down like this. The other end (top) of Limit screw stretches out hollow bolt, and stop nut is set on Limit screw. Stop nut is two, can mutually tighten, and between stop nut and the top of hollow stud, reserves certain gaph, give the gap with elastic reset.

Finally it should be noted that, below only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred arrangement scheme, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model (such as form, each annexation etc. of elastic reset structure), and not depart from the spirit and scope of technical solutions of the utility model.

Claims

1. a slip blade structure for thread rolling machine, is characterized in that, comprising: be arranged on the elastic reset assembly on the rolling guide between lathe bed and slide thread rolling splint, described elastic reset assembly comprises: guide rail hold-down mechanism and flexible restoring organ.

2. structure according to claim 1, it is characterized in that, described guide rail hold-down mechanism is the hollow bolt being threaded with lathe bed and the locknut being threaded with hollow bolt, described flexible restoring organ is arranged on the helical spring at hollow bolt center, and described helical spring and clamping screw together withstand the pressing plate of rolling guide.

3. structure according to claim 1 and 2, is characterized in that, described elastic reset assembly also comprises: position-limit mechanism.

4. structure according to claim 3, it is characterized in that, described position-limit mechanism comprises: be arranged on the Limit screw at hollow bolt and helical spring center, described Limit screw is threaded with the pressing plate of rolling guide, and described screw rod is provided with two stop nuts of locking mutually.