CN219401686U - Double-row roller self-centering clamp - Google Patents

Abstract

The utility model discloses a double-row roller self-centering clamp, which comprises: mounting seat, support frame and roller train. The support frame is located the mount pad, and the roller train is including a plurality of gyro wheels that extend degree direction was arranged, the roller train rotationally is located the support frame, the roller train includes parallel and spaced first row roller train and second row roller train at least, the quantity of the gyro wheel of first row roller train with the quantity of gyro wheel of second row roller train is the same. According to the technical scheme, the self-centering capability of the workpiece in the machining process can be improved, the left-right offset condition of the workpiece is reduced, and therefore the stability of the workpiece in the machining process is improved, and the quality of products is improved.

Description

Double-row roller self-centering clamp

Technical Field

The utility model relates to the technical field of ball screw auxiliary machining, in particular to a double-row roller self-centering clamp.

Background

The ball screw is mainly composed of a screw rod, a nut, a steel ball, a pre-pressing piece, a reverser and a dust-proof device, is a transmission element most commonly used on tool machinery and precision machinery, and has the main functions of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency.

In the prior art, in the rolling processing process of the ball screw, the self-centering capability of a workpiece is poor, and the workpiece is easy to shift left and right, so that the stability of the ball screw is reduced, and finally, the quality of the screw cannot be ensured.

Disclosure of Invention

The utility model mainly aims to provide a double-row roller self-centering clamp, which aims to improve the self-centering capability of a workpiece in the machining process and reduce the left-right offset condition of the workpiece, so that the stability of the workpiece in the machining process is improved and the quality of products is improved.

In order to achieve the above object, the present utility model provides a double-row roller self-centering fixture, comprising:

a mounting base;

the support frame is arranged on the mounting seat; and

the roller group comprises a plurality of rollers which are arranged in the extending degree direction, the roller group is rotatably arranged on the supporting frame, the roller group at least comprises a first row of roller groups and a second row of roller groups which are parallel and spaced, and the number of the rollers of the first row of roller groups is the same as that of the rollers of the second row of roller groups.

Optionally, the support frame includes bracket fixed plate and bracket body, the bracket fixed plate install in the mount pad, the bracket body height-adjustable locates the bracket fixed plate.

Optionally, the bracket fixing plate is provided with an adjusting hole, and the bracket body is provided with an adjusting groove which extends along the height direction and corresponds to the adjusting hole.

Optionally, the bracket body is provided with a containing groove for containing the roller, two opposite side walls of the containing groove are provided with perforations, the perforations are provided with pin shafts in a penetrating way, and the roller is rotatably arranged on the pin shafts.

Optionally, two opposite sides of the bracket body are further provided with pressing blocks, the pressing blocks are abutted against the end parts of the pin shafts, and the pressing blocks at least partially cover the through holes.

Optionally, the bracket fixing plate is provided with at least two bracket bodies along the length direction.

Optionally, the bracket body is T-shaped.

The utility model also provides ball screw machining equipment, which comprises the double-row roller self-centering clamp.

According to the technical scheme, the first row of roller groups and the second row of roller groups which are parallel and spaced are arranged on the supporting frame to support the screw rod in the machining process, the first row of roller groups support one side of the screw rod, and the second row of roller groups support the other side of the screw rod, so that the screw rod can keep stable in the center and cannot deviate in the rotating process, the machining stability of the screw rod can be guaranteed, and the yield of workpieces is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a self-centering fixture with double rows of rollers according to an embodiment of the present utility model;

FIG. 2 is a side view of one embodiment of a double row roller self-centering fixture of the present utility model;

FIG. 3 is a front view of one embodiment of a double row roller self-centering fixture of the present utility model;

reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a double-row roller self-centering clamp.

Referring to fig. 1 to 3, in an embodiment of the present utility model, the double row roller self-centering jig includes:

a mounting base 1;

the support frame 2 is arranged on the mounting seat 1; and

the roller group comprises a plurality of rollers 3 which are arranged in the extending direction, the roller group is rotatably arranged on the supporting frame 2 and at least comprises a first row of roller groups and a second row of roller groups which are parallel and spaced, and the number of the rollers 3 of the first row of roller groups is the same as the number of the rollers 3 of the second row of roller groups.

According to the technical scheme, the first row of roller groups and the second row of roller groups which are parallel and spaced are arranged on the support frame 2 to support the screw rod in the machining process, the first row of roller groups support the screw rod from one side, and the second row of roller groups support the screw rod from the other side, so that the screw rod can keep stable in the center and cannot deviate in the rotating process, the machining stability of the screw rod can be guaranteed, and the yield of workpieces is improved.

It should be noted that, the number of the rollers 3 in the present design is not particularly limited, in this embodiment, two parallel and spaced roller sets are disposed on one support frame 2, and each roller set is provided with three rollers 3 coaxially disposed. In other embodiments, the number of rollers 3 in the roller set may be two, four or more than four. It will be appreciated that the greater the number of rollers 3, the better the support of the workpiece, and the greater the ability to withstand the stresses imposed by the workpiece.

Further, the support frame 2 includes a bracket fixing plate 21 and a bracket body 22, the bracket fixing plate 21 is mounted on the mounting seat 1, and the bracket body 22 is disposed on the bracket fixing plate 21 with adjustable height. Through adjusting the relative position relation between bracket body 22 and bracket fixed plate 21 to adjust the height that bracket body 22 is located, and then can adjust the contact relation of roller train and work piece on the bracket body 22, make the laminating work piece that roller train can be better, be favorable to improving the stability in the work piece course of working.

Specifically, in the present embodiment, the bracket fixing plate 21 is provided with an adjusting hole 23, and the bracket body 22 is provided with an adjusting groove 24 extending along the height direction thereof and corresponding to the adjusting hole 23. The height of the bracket body 22 is raised or lowered by adjusting the fitting relation of the adjustment groove 24 and the adjustment hole 23. In another embodiment, the adjusting hole 23 is disposed on the bracket body 22, the adjusting slot 24 is disposed on the bracket fixing plate 21, and the height of the bracket body 22 is raised or lowered by adjusting the assembling relationship between the adjusting slot 24 and the adjusting hole 23.

Further, the bracket body 22 is provided with a receiving groove 25 for accommodating the roller 3, two opposite side walls of the receiving groove 25 are provided with through holes 28, the through holes 28 are provided with pin shafts 27 in a penetrating manner, and the roller 3 is rotatably arranged on the pin shafts 27. In this embodiment, the roller 3 is accommodated by providing the accommodating groove 25, and the two opposite side walls of the accommodating groove 25 are provided with the through holes 28, so that the pin shaft 27 can be inserted into the through holes 28, and the roller 3 arranged in parallel can be installed on the pin shaft 27 for one time to rotate. The arrangement of the accommodating groove 25 is also beneficial to protecting the roller 3, and prevents external scraps from splashing into the roller 3 so as to influence the normal rotation of the roller 3.

Further, pressing blocks 26 are further disposed on two opposite sides of the bracket body 22, the pressing blocks 26 abut against ends of the pins 27, and the pressing blocks 26 at least partially cover the through holes 28. In this embodiment, the pin 27 is fixed by the pressing block 26, so that the pin 27 is prevented from falling off the bracket body 22 under the stress state. In the process of disassembly or maintenance, the pin 27 can be taken out after the pressing block 26 is disassembled, so that the roller 3 is cleaned and maintained or replaced. However, the present design is not limited thereto, and in other embodiments, the pin 27 can be fixed in the axial direction by a structure such as a screw, so as to improve the stability of the structure of the pin 27.

Further, in order to enhance the supporting effect of the whole jig, the bracket fixing plate 21 is provided with at least two bracket bodies 22 in the length direction. In this embodiment, the bracket fixing plate 21 is provided with two bracket bodies 22 along the length direction, so that the roller set of one row includes six rollers 3, and the supporting capability of the roller set on the workpiece is improved. In other embodiments, the bracket fixing plate 21 is provided with three bracket bodies 22 along the length direction, so that the roller set of one row includes nine rollers 3, and the supporting capability of the roller set on the workpiece is further or improved. However, the present design is not limited thereto, and in other embodiments, four or more bracket bodies 22 may be provided along the length direction of the bracket fixing plate 21 to improve the capability of the jig to support the workpiece.

Further, the bracket body 22 is T-shaped. The T-shaped bracket body 22 can meet the structural strength and simultaneously facilitate processing, and reduce the processing cost.

The utility model also provides ball screw processing equipment, which comprises a double-row roller self-centering clamp, wherein the specific structure of the double-row roller self-centering clamp refers to the embodiment, and the ball screw processing equipment adopts all the technical schemes of all the embodiments, so that the ball screw processing equipment at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (8)

1. Double gyro wheel is from centering fixture, its characterized in that includes:

a mounting base;

the support frame is arranged on the mounting seat; and

the roller group comprises a plurality of rollers which are arranged in the extending degree direction, the roller group is rotatably arranged on the supporting frame, the roller group at least comprises a first row of roller groups and a second row of roller groups which are parallel and spaced, and the number of the rollers of the first row of roller groups is the same as that of the rollers of the second row of roller groups.

2. The double row roller self centering fixture of claim 1, wherein the support bracket comprises a bracket mounting plate and a bracket body, the bracket mounting plate mounted to the mounting base, the bracket body being height-adjustably positioned to the bracket mounting plate.

3. The double-row roller self-centering fixture according to claim 2, wherein the bracket fixing plate is provided with an adjusting hole, and the bracket body is provided with an adjusting groove extending along the height direction thereof and corresponding to the adjusting hole.

4. The double-row roller self-centering fixture according to claim 2, wherein the bracket body is provided with a containing groove for containing the rollers, two opposite side walls of the containing groove are provided with through holes, pin shafts are penetrated through the through holes, and the rollers are rotatably arranged on the pin shafts.

5. The double row roller self centering fixture of claim 4, wherein opposite sides of the bracket body are further provided with a press block, the press block abuts an end of the pin shaft, and the press block at least partially covers the through hole.

6. The double row roller self centering fixture of claim 2, wherein said bracket fixing plate is provided with at least two of said bracket bodies along a length direction.

7. The double row roller self centering fixture of claim 2, wherein the bracket body is T-shaped.

8. A ball screw machining apparatus comprising a double row roller self-centering fixture as claimed in any one of claims 1 to 7.