CN215178653U

CN215178653U - Simulated cutting loading device of turning and rolling combined machine tool

Info

Publication number: CN215178653U
Application number: CN202023090280.XU
Authority: CN
Inventors: 李伟光; 陈儒; 林守金; 伍嘉乐; 严嵩; 郑嘉伟; 陆泓洁
Original assignee: Zhongshan Mltor Cnc Technology Co ltd; South China University of Technology SCUT
Current assignee: Zhongshan Mltor Cnc Technology Co ltd; South China University of Technology SCUT
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-12-14
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses a car rolling composite machine tool simulation cutting loading device, the device includes cross slip table, base, rigid support, work piece motion simulation subassembly, the subassembly is amplified to the loading power, cutting force simulation loading subassembly and test stick, pedestal mounting is on the cross slip table, rigid support installs on the base, work piece motion simulation unit mount is in the rigid support middle part, cutting force simulation loading unit mount is in the rigid support upper end, the subassembly mounting is amplified to the loading power inside the rigid support, the upper end is linked with cutting force simulation loading subassembly, the middle part is linked with work piece motion simulation subassembly, this simulation cutting loading device can produce the power of x, y, the three direction of z simultaneously.

Description

Simulated cutting loading device of turning and rolling combined machine tool

Technical Field

The utility model belongs to the technical field of the machine tool performance test, especially, relate to a car rolls compound lathe simulation cutting loading device.

Background

At present, for numerical control machine tools, various cutting processes can be realized on the same machine tool, the production efficiency is improved, and the numerical control machine tool becomes indispensable processing equipment in various industries. Due to differences among machine tool manufacturing companies, machine tool products manufactured by the machine tool manufacturing companies often have differences in performance, and even the same batch of machine tools manufactured by the same machine tool manufacturing company can have differences. For users, it is desirable to purchase a machine tool product with good performance at a lower price, but the price of the machine tool is often related to the performance of the machine tool, and the better the performance of the machine tool is, the more expensive the price of the machine tool is, wherein the main reason is that the high cost is usually required for testing the performance of the machine tool.

Before the machine tool leaves a factory, testing the performance of the machine tool is an indispensable link, faults possibly occurring in the actual working process of the machine tool can be continuously found through testing the performance of the machine tool, the design of the machine tool can be continuously improved according to a test result until the limit performance of the machine tool is tested, and the machine tool is designed and shaped under the limit performance.

At present, machine tool performance tests are mainly carried out in two main modes: the first is realized by actually processing material objects by a machine tool, and the second is realized by simulating the processing process of the machine tool by a computer; although the first method can accurately realize the running condition of the machine tool during actual machining, a large amount of material objects and machining tools are consumed, and the test result is expensive; although the second method has low test cost, the reliability of the test result is low because the simulation test is performed only by the computer, and even if the performance test is simulated in the computer, the machine tool still cannot effectively avoid the occurrence of faults in the actual machining process.

Therefore, a brand-new machine tool performance testing means is urgently needed to be found, the stress condition of the machine tool in the actual machining process can be truly simulated, material objects and machining tools do not need to be consumed, the machine tool performance testing cost is effectively reduced, and the effects of ensuring the excellent performance of the machine tool and reducing the manufacturing cost of the machine tool are achieved.

The patent name of a main shaft radial loading device (application number: 201922092048) discloses a main shaft radial loading device, which comprises a main shaft detection rod and a radial force loading module; the radial force loading module comprises a driving device, a mounting seat and a contact head device, the driving device is fixed on the mounting seat, and the contact head device is installed on the driving device. This patent can be on test platform, and the condition of simulation lathe actual machining operating mode is in order to carry out the sports car experiment, but this patent can only produce the loading force of the radial one direction of main shaft, can not simulate the lathe actual processing totally and receive complicated loading force, and the suitability is not high.

The patent name is a loading experimental device (application number: 201720764482.7) for simulating the cutting force of a cutter, and discloses a loading experimental device for simulating the cutting force and the acting position of the cutter, which comprises a loading device capable of applying three-way force simultaneously, wherein a detection device for measuring the magnitude of the simulated loading three-way acting force is arranged on the loading device, and the loading device can realize the simulated loading of each position in space through the customization of accessories, but the patent can only generate static loading force and cannot simulate the machining condition of a machine tool under dynamic loading force.

SUMMERY OF THE UTILITY MODEL

The problem that exists to prior art, the utility model provides a car rolls compound lathe simulation cutting loading device, the atress condition in can the actual course of working of true simulation lathe need not consumptive material in kind and processing cutter again, effectively reduces the machine tool capability test cost, can reduce the manufacturing cost of lathe when guaranteeing the lathe good performance.

The utility model discloses at least, one of following technical scheme realizes.

The utility model provides a car rolls compound lathe simulation cutting loading device, includes cross slip table, base, rigid support, work piece motion simulation subassembly, loading power amplification subassembly, cutting power simulation loading subassembly and test rod, the pedestal mounting in on the cross slip table, rigid support install in on the base, work piece motion simulation subassembly install in the rigid support middle part, cutting power simulation loading unit mount is in the rigid support upper end, loading power amplification unit mount in inside the rigid support, loading power amplification subassembly upper end with cutting power simulation loading subassembly is connected, loading power amplification subassembly middle part with work piece motion simulation subassembly is connected.

Preferably, the workpiece motion simulation assembly comprises a test rod mounting shell, a linear sliding table, a linear guide rail, a push rod and a gradient generation part; the test rod is sleeved in the test rod mounting shell, and the test rod mounting shells are separated in half; the test rod installation shell with the push rod is articulated, test rod installation shell with the push rod rotates at the pin joint, the push rod with the slope produces the part and connects, the slope produces the part and installs on the linear sliding table, linear sliding table inlays in on the linear guide rail, the linear guide rail sets up in the rigid support.

Preferably, the cutting force simulation loading assembly comprises a vibration exciter, a first connecting part and a vibration exciter mounting base, the vibration exciter is connected with the first connecting part, the vibration exciter mounting base is connected with the rigid support, and a vibration isolation pad is arranged between the vibration exciter mounting base and the rigid support; the vibration exciter is arranged on the vibration exciter mounting base.

Preferably, the linear sliding table is sleeved on the linear guide rail, a rail seat is additionally arranged between the linear sliding table and the linear guide rail, and the rail seat is provided with a guide roller; the linear sliding table is in sliding fit with the linear guide rail through a guide roller; the linear guide rail is connected with the rigid support;

preferably, the two ends of the test rod are round shafts, and the middle section of the test rod is a spline.

Preferably, the loading force amplifying assembly comprises a lever and a second connecting part, the lever is connected with the push rod, and the lower end of the lever is connected with a hinge arranged on the rigid support.

Preferably, the base surface is equipped with the arc dovetail groove, the rigid support carries out angle modulation along the arc dovetail groove according to the experiment requirement.

Preferably, the test rod mounting shell is provided with a locking bolt.

Preferably, the test rod and the test rod mounting housing are fixed in the z direction by the locking bolt.

Preferably, the length ratio of the power arm to the resistance arm of the lever is 1.5: 1.

compared with the prior art, the beneficial effects of the utility model are that:

1. the test can be carried out without consuming the workpiece, and the test cost is low;

2. the specifications of the test rod and the test rod mounting shell can be changed according to the actual size of the test machine tool, and the applicability is high;

3. the utility model discloses can realize multiple test mode, including appointed exciting force test and frequency sweep test to can simulate the atress condition in the actual processing of common lathe on the market such as lathe, gear hobbing machine, milling machine, powerful.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a perspective view of a simulated cutting loading device of a turning and rolling combined machine tool in an embodiment of the invention;

fig. 2 is an assembly view of a workpiece motion simulation assembly according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a test bar according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a linear sliding table and a linear slide rail according to an embodiment of the present invention;

fig. 5 is an assembly view of a loading force amplifying assembly according to an embodiment of the present invention;

fig. 6 is an assembly view of a cutting force simulation loading assembly according to an embodiment of the present invention;

fig. 7 is a schematic view of a connection relationship among the rigid support, the workpiece motion simulation assembly, the loading force amplification assembly and the cutting force simulation loading assembly according to the embodiment of the present invention;

FIG. 8 is a schematic view of a base structure according to an embodiment of the present invention;

in the figure, 30-workpiece motion simulation module, 40-loading force amplification module, 50-cutting force simulation loading module, 1-test rod installation shell, 2-bolt, 3-locking bolt, 4-linear sliding table, 5-test rod, 6-push rod, 7-gradient generation component, 8-lever, 9-first connecting component, 10-vibration exciter, 11-vibration exciter installation base, 12-vibration isolation pad, 13-rigid support, 14-base, 15-cross sliding table, 16-second connecting component, 17-movable bottom plate, 18-hinge pin, 19-linear guide rail, 20-rail seat, 21-guide roller.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, a simulated cutting loading device of a turning and rolling compound machine tool comprises: the device comprises a cross sliding table 15, a base 14, a rigid support 13, a workpiece motion simulation assembly 30, a loading force amplification assembly 40, a cutting force simulation loading assembly 50 and a test rod 5.

The rigid support 13 is shown supporting the workpiece motion simulation assembly 30, the loading force amplification assembly 40, and the cutting force simulation loading assembly 50. The rigid support 13 is placed on the base 14, the base 14 fastens the whole device on the cross sliding table 15 through a universal clamping bolt, a hand wheel is arranged on the cross sliding table 15, and the position of the cross sliding table 15 is adjusted through the hand wheel; the rigid support 13 is mounted on the base 14;

as shown in fig. 2, the workpiece motion simulation module 30 includes a test stick mounting housing 1, a linear slide 4, a linear guide rail 19, a push rod 6, and a gradient generation section 7. The test rod mounting shell 1 can be separated in half, the two parts of the test rod mounting shell 1 are connected by using the bolts 2, the test rod mounting shell 1 is connected with the push rod 6 through the hinge pin 18, and the test rod mounting shell and the push rod can rotate at a hinge point; the test rod 5 is sleeved in the test rod mounting shell 1; the push rod 6 is connected with a gradient generating component 7; the gradient generating part 7 is installed on the linear sliding table 4 and connected with the linear sliding table 4 through bolts. The linear sliding table 4 is embedded on the linear sliding rail 19; the linear slide 19 is arranged in the rigid support 13.

As shown in fig. 2, a plane on which the push rod 6 is mounted on the gradient generating component 7 forms a certain angle with a horizontal plane, and the specific angle can be changed according to actual needs, wherein the gradient generating component 7 has different specifications.

The test rod mounting shell 2 is provided with a locking bolt 3, and the test rod mounting shell are fixed in the z direction through the locking bolt, so that the test rod mounting shell transmits acting force generated by the vibration exciter in the vertical direction to the test rod;

as shown in fig. 3, the upper and lower ends of the test rod 5 are in the shape of a circular shaft, and the middle section is in the shape of a spline and is matched with the spline on the inner side of the test rod mounting housing 1;

the push rod 6 is provided with a threaded hole and is connected with the gradient generating component 7 through a bolt.

As shown in fig. 4, the linear sliding table 4 is of a concave structure, and the linear sliding table 4 is sleeved on the linear sliding rail 19. The linear guide rail is characterized in that rail bases 20 are additionally arranged at two ends of the linear guide rail 19, grooves are formed in the outer side surfaces of the rail bases 20, guide rollers 21 are arranged in the grooves, and the linear sliding table 4 is in sliding fit with the linear guide rail 19 through the guide rollers 21.

And the linear sliding rail 19 is provided with a threaded hole and is connected with the rigid support 13 through a bolt.

The movable bottom plate 17 is installed inside the rigid support 13, and threaded holes are formed around the movable bottom plate 17 and can be in threaded connection with the rigid support 13. The workpiece motion simulation assembly 30 is adjustable in position in the z-direction of the rigid support 13 by means of the movable base 17.

As shown in fig. 6, the cutting force simulation loading assembly 30 includes a first connection member 9, an exciter 10, an exciter mounting base 11, and an isolator pad 12. The vibration exciter 10 is mounted on the vibration exciter mounting base 11; the middle of one end of the first connecting component 9 is hollowed, the lever 8 can be installed with the first connecting component 9 through the hollowed part, a threaded hole is formed in the other end of the first connecting component 9, and the first connecting component 9 is connected with the vibration exciter 10 through threads; the vibration exciter mounting base 11 is provided with a threaded hole and is connected with the rigid support 13 through a bolt; the vibration isolation pad 12 is arranged between the vibration exciter mounting base 11 and the rigid support 13, and can isolate the influence of vibration generated by the machine tool on the vibration exciter in the movement process of the machine tool.

In one embodiment, the vibration exciter 10 is of a model SA-JZ070, can generate vibration frequency less than or equal to 2000Hz and excitation force less than or equal to 700N, can generate maximum amplitude of +/-12.5 mm, adopts an output mode of a push rod, can generate vibration frequency of 120Hz, can simulate the working frequency of a hobbing cutter during hobbing, enables the simulated machining process of the whole device to be more consistent with the actual condition, and enables the test result to be more accurate.

As shown in fig. 5 and 7, the loading force amplifying assembly 40 includes a lever 8 and a second connecting part 16, the lever 8 is connected with the push rod 6 by a hinge pin, one side of the second connecting part 16 is provided with a round hole, the other side of the second connecting part 16 is T-shaped, the second connecting part 16 is mounted at the bottom of the rigid bracket 13 by the other side of the T-shaped structure, the lever 8 is connected with the round hole at one side of the second connecting part 16 by the hinge pin, and the lever 8 can rotate on the second connecting part 16.

The upper end of a lever 8 in the loading force amplifying assembly 40 is connected with an exciter 10 in the cutting force simulation loading assembly 50, the middle part of the lever is connected with a push rod 6 in the workpiece motion simulation assembly 30, and the cutting force simulation loading assembly 50 amplifies the generated exciting force through the cutting force amplifying assembly 40 and transmits the amplified exciting force to the workpiece motion simulation assembly 30.

In this embodiment, the length ratio of the power arm to the resistance arm of the lever 8 is 1.5: 1, the exciting force generated by the cutting force simulation loading assembly 50 can be amplified by 1.5 times.

As shown in fig. 8, an arc-shaped trapezoidal groove is formed on the surface of the base 14, and the rigid support 13 can drive the loading force amplifying assembly 40, the cutting force simulation loading assembly 50, the linear sliding table 4, the push rod 6, the gradient generating component 7, the movable bottom plate 17, and the linear guide rail 19 to rotate on the base 14.

The position of the x and y coordinate directions of the cross sliding table 15 is adjusted through a hand wheel, the cross sliding table can be locked after adjustment is finished, and practical use can be facilitated through adjustment of the x and y coordinate directions of the cross sliding table 15.

The utility model provides a brand-new machine tool performance test means, through the lathe simulation cutting loading device of brand-new design, join in marriage the dress with the lathe and use the back, can truly simulate out loading force and impact force that the lathe actually processes in-process received, and can produce simultaneouslyx、y、zThe recording force and the impact force in three directions do not need to consume material objects and machining tools, the cost of machine tool performance test is effectively reduced, and meanwhile, a performance test result according with the actual situation can be obtained.

The above-described embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A simulated cutting loading device of a turning and rolling compound machine tool is characterized by comprising a cross sliding table (15), a base (14), a rigid support (13), a workpiece motion simulation assembly (30), a loading force amplification assembly (40), a cutting force simulation loading assembly (50) and a test rod (5), the base (14) is arranged on the cross sliding table (15), the rigid support (13) is arranged on the base (14), the workpiece motion simulation component (30) is arranged in the middle of the rigid support (13), the cutting force simulation loading assembly (50) is arranged at the upper end of the rigid support (13), the loading force amplifying assembly (40) is arranged inside the rigid bracket (13), the upper end of the loading force amplifying assembly (40) is connected with the cutting force simulation loading assembly (50), the middle part of the loading force amplifying assembly (40) is connected with the workpiece motion simulation assembly (30).

2. The simulated cutting loading device of the turning and rolling compound machine tool according to claim 1, characterized in that the workpiece motion simulation assembly (30) comprises a test rod mounting shell (1), a linear sliding table (4), a linear guide rail (19), a push rod (6) and a gradient generating part (7); the test rod (5) is sleeved in the test rod mounting shell (1), and the test rod mounting shells (1) are separated in half; test stick installation shell (1) with push rod (6) are articulated, test stick installation shell (1) with push rod (6) rotate at the pin joint, push rod (6) with the slope produces part (7) and connects, the slope produces part (7) and installs on linear slip table (4), linear slip table (4) are set up in on linear guide rail (19), linear guide rail (19) set up in rigid support (13).

3. The simulated cutting loading device of the turning and rolling compound machine tool as claimed in claim 2, characterized in that: the cutting force simulation loading assembly (50) comprises a vibration exciter (10), a first connecting part (9) and a vibration exciter mounting base (11), the vibration exciter (10) is connected with the first connecting part (9), the vibration exciter mounting base (11) is connected with the rigid support (13), and a vibration isolation pad (12) is arranged between the vibration exciter mounting base (11) and the rigid support (13); the vibration exciter (10) is installed on the vibration exciter installation base (11).

4. The simulated cutting loading device of the turning and rolling compound machine tool as claimed in claim 3, characterized in that: the linear sliding table (4) is sleeved on the linear guide rail (19), a rail seat is additionally arranged between the linear sliding table (4) and the linear guide rail (19), and the rail seat is provided with a guide roller; the linear sliding table (4) is in sliding fit with the linear guide rail (19) through a guide roller; the linear guide (19) is connected to the rigid support (13).

5. The simulated cutting loading device of the turning and rolling compound machine tool as claimed in claim 4, characterized in that: the two ends of the test rod (5) are round shafts, and the middle section of the test rod is a spline.

6. The simulated cutting loading device of the turning and rolling compound machine tool as claimed in claim 5, characterized in that: the loading force amplifying assembly (40) comprises a lever (8) and a second connecting part (16), the lever (8) is connected with the push rod (6), and the lower end of the lever (8) is connected with a hinge arranged on the rigid support (13).

7. The simulated cutting loading device of the turning and rolling compound machine tool as claimed in claim 6, wherein the surface of the base (14) is provided with an arc-shaped trapezoidal groove, and the rigid support (13) is angularly adjusted along the arc-shaped trapezoidal groove according to experimental requirements.

8. The simulated cutting loading device of the turning and rolling compound machine tool according to claim 7, characterized in that: and the test rod mounting shell (1) is provided with a locking bolt (3).

9. The simulated cutting loading device of the turning and rolling compound machine tool according to claim 8, characterized in that: the test rod (5) and the test rod mounting shell (1) are fixed in the z direction through the locking bolt (3).

10. The simulated cutting loading device of the turning and rolling compound machine tool according to claim 9, characterized in that: the length ratio of the power arm to the resistance arm of the lever (8) is 1.5: 1.