Reciprocating mechanism for testing linear guide rail pair

Abstract

The utility model belongs to the technical field of service life testing, and particularly relates to a reciprocating mechanism for testing a linear guide rail pair. The grooves matched with the guide rails are formed in the connecting blocks of the double-cylinder shafts, the guide rails are clamped and fixed in the grooves, external screws are tightened, then the connecting block on the other side and the guide rails are fixed, and due to the fact that the double-cylinder shafts and the fixing mechanism do reciprocating motion, the guide rails are very convenient to install; the number of the balancing rods is two, the two balancing rods are respectively fixed on the inner walls of the opposite fixing mechanisms, the fixing mechanisms on the two sides are provided with holes, the balancing rods are arranged in the holes, the balancing rods vibrate in the holes, the service life of the double-cylinder shaft is guaranteed, and meanwhile the influence of vibration on the guide rail pair testing unit group is small.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical device service life test technical field, especially a reciprocating mechanism of linear guide vice test. BACKGROUND

[0002] Rolling linear guide rail has high motion sensitivity, small friction, low speed motion stability and other advantages, is the important function component of directly influencing lathe precision and life. The service life of track has direct influence on lathe machining precision, life. After a certain time of lathe use, the guide rail surface appears uneven wear, and is accompanied by rolling body fatigue pitting, causes the spindle installation slide plate to deviate in horizontal plane and vertical plane, leads to workpiece machining precision decline. Through improving guide rail pair structure, material, surface treatment process, lubrication mode and other parameters, can reduce guide rail pair wear, prolong guide rail use time as far as possible, improve lathe life, the verification of guide rail actual life is currently more for theoretical calculation, needs to develop a kind of test device of quick evaluation guide rail life, provides actual data basis for new product research and development or product improvement.

[0003] At present, the industry uses running-in test machine to complete guide rail life test, cannot verify the change situation of life under different loading conditions, cannot accurately identify the rated dynamic load of product, and the test carried out on fatigue and wear life test machine often has no good corresponding relationship with actual working condition. At present, there is lack of special rolling linear guide rail rated dynamic load and life test device and method with large loading capacity in domestic, and foreign related equipment is not reported openly. CONTENT OF UTILITY MODEL

[0004] In view of the above-mentioned shortcomings of prior art, the utility model provides a reciprocating mechanism of linear guide vice test, and the service life between slider and guide rail pair is continuously tested and improved by the reciprocating mechanism.

[0005] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0006] A reciprocating mechanism of linear guide vice test, base and reciprocating mechanism body, the base includes reciprocating moving workbench and control system, and the control system is connected with display, the display is installed on the reciprocating moving workbench, and the reciprocating moving workbench is connected with the reciprocating mechanism body;

[0007] The reciprocating mechanism body comprises a guide rail pair test unit group and a fixing mechanism for fixing the guide rail pair test unit group, the fixing mechanism is installed on both sides of the guide rail pair test unit group, the fixing mechanisms are fixed through double-cylinder shafts, a limiting rod is arranged in the middle of the double-cylinder shafts, the limiting rod is arranged in a reciprocating moving table, a driving connecting member is further installed on the fixing mechanism, the guide rail pair test unit group comprises a sliding block and a guide rail, the driving connecting member is installed on both sides of the guide rail, the double-cylinder shafts drive the fixing mechanism, thereby driving the guide rail connected to the driving connecting member to move back and forth.

[0008] As a preferred scheme: the double-cylinder shafts pass through the reciprocating moving table and are provided with limiting blocks on the reciprocating moving table.

[0009] As a preferred scheme: the fixing mechanisms on both sides are provided with openings, balance rods are arranged in the openings, and the balance rods are connected to the fixing mechanisms on the opposite sides and pass through the reciprocating moving table.

[0010] As a preferred scheme: the bottom of the reciprocating moving table is provided with a pulley.

[0011] As a preferred scheme: the driving connecting member is provided with a connecting block, a groove matched with the guide rail is arranged in the connecting block, and the guide rail is clamped and fixed in the groove.

[0012] The reciprocating mechanism has the following beneficial effects:

[0013] The connecting block of the double-cylinder shaft is provided with a groove matched with the guide rail in the connecting block, the guide rail is clamped and fixed in the groove, external screws are tightened, the connecting block and the guide rail on the other side are fixed, the double-cylinder shaft and the fixing mechanism are repeatedly moved, the guide rail is very convenient to install, the balance rods are fixed on the inner walls of the fixing mechanisms on the opposite sides, the openings in the fixing mechanisms are provided with the balance rods, the balance rods vibrate in the openings, the service life of the double-cylinder shaft is guaranteed, and the vibration has little influence on the guide rail pair test unit group. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiment description, obviously, the drawings in the following description only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0015] Figure 1 It is a reciprocating mechanism structure schematic view of the utility model linear guide rail pair test;

[0016] Figure 2 It is a reciprocating mechanism front view schematic view of the utility model linear guide rail pair test.

[0017] Figure 3 is a kind of linear guide vice test reciprocating mechanism overhead schematic view of the utility model;

[0018] Figure 4 is a kind of linear guide vice test reciprocating mechanism another schematic view of the utility model;

[0019] Figure 5 is the structural schematic diagram of the utility model slider 71;

[0020] Figure 6 is the position relation schematic diagram of the utility model guide vice test unit group 7;

[0021] Figure 7 is the front schematic diagram of the utility model guide vice test unit group 7. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model.

[0023] Please refer to Figures 1-7 The reciprocating mechanism of the linear guide vice test, base 2 and reciprocating mechanism body 3, base 2 includes reciprocating moving workbench 4 and control system 5, display 6 is connected on control system 5, display 6 is installed on reciprocating moving workbench 4, reciprocating moving workbench 4 is connected with the reciprocating mechanism body 3 described above;Reciprocating mechanism body 3 includes guide vice test unit group 7 and the fixed mechanism 31 of fixed guide vice test unit group 7, fixed mechanism 31 is installed on the both sides of guide vice test unit group 7, fixed mechanism 31 is fixed by double cylindrical shaft 32 between each other, driving connection member 33 is installed on fixed mechanism 31, double cylindrical shaft 32 passes through reciprocating moving workbench 4, guide vice test unit group 5 includes slider 71 and guide rail 72, driving connection member 33 is installed on the both sides of guide rail 72, double cylindrical shaft 32 drives fixed mechanism 31, thereby driving guide rail 72 connected on driving connection member 33 to make to-and-fro movement, limit block 34 is installed on reciprocating moving workbench 4, the both sides fixed mechanism 31 are each equipped with aperture 35, balance bar 36 is installed in aperture 35, balance bar 36 is connected to opposite fixed mechanism 31, balance bar 36 passes through the reciprocating moving workbench 4 described above.

[0024] Before the test starts, the guide rail pair test unit group 7 is first installed on the connecting block 37 of the one side driving connection member 33, the connecting block 37 is internally provided with a groove 38 matched with the guide rail 72, the guide rail 72 is clamped and fixed in the groove 38, and the external screw is tightened, then the other connecting block 37 and the guide rail 72 are fixed, the double-cylinder shaft 32 drives the fixed mechanism 31, thereby driving the guide rail 72 connected on the driving connection member 33 to move back and forth, so that the guide rail 72 is very convenient to install. The slider is stationary, and the guide rail moves back and forth; the bottom surfaces of every two guide rails 72 are rigidly and fixedly connected, and the two sets of guide rail pairs 73 form a guide rail pair test unit group 7 in pairs; one running-in test can test one guide rail pair test unit group 7 or multiple guide rail pair test unit groups 7 together; in one running-in test, the test conditions of each guide rail pair 73 sample belonging to multiple guide rail pair test unit groups 7 are consistent, and the external loads borne by the guide rail pairs are completely the same without considering the self-weight of the guide rail pairs; when multiple guide rail pair test unit groups 7 are tested together, the samples are arranged in sequence according to the guide rail pair test unit groups 7, all the sliders 71 are aligned, and a transition connecting piece 20 is arranged between each unit group to rigidly connect the front and rear sliders of two adjacent unit groups.

[0025] After the installation is completed, the control system 5 is started, the hydraulic oil cylinder 11 pushes the loading adapter plate 18 to clamp the slider 71 on the guide rail pair test unit group 7. After clamping, the double-cylinder shaft 32 is automatically started, the double-cylinder shaft 32 drives the fixed mechanism 31 to move back and forth, the balance bars 36 are lifted out of the holes 35, and the two balance bars 36 ensure the consistency of the reciprocating movement of the guide rail 72 driven by the driving connection member 33. The guide rail 72 moves back and forth under the driving of the driving connection member 33, and the slider 71 does not move at this time. The guide rail 72 moves back and forth on the slider 71. The resistance between the guide rail 72 and the slider 71 can be tested, and the test results of how long and how strong the force is borne are displayed on the display 6. Different pressurizing modes and pressurizing forces of the hydraulic oil cylinder 11 form changes for the test, for example, the force applied by the hydraulic oil cylinder A 12 and the hydraulic oil cylinder B 13 is equivalent to vertical pressure from directly above the slider 71, and the relative movement between the guide rail 72 and the slider 71 is still carried out at the same time. Different combinations of other hydraulic oil cylinders 11 produce forces in directions such as lateral, pitch, and yaw. There are different bearing force ranges between the slider 71 and the guide rail 72, and between the slider body and the internal steel ball. Here, I will not make a detailed introduction. The driving connection member 33 drives the reciprocating movement and increases the speed, and the balance bars 36 ensure the service life of the double-cylinder shaft 32, and the vibration has little effect on the guide rail pair test unit group 7.

[0026] The above is only the preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement, improvement of any modification, equivalent replacement, and improvement of the technical solutions recorded in the foregoing embodiments, all belong to the protection scope of the present application.

Claims

1. A reciprocating mechanism for testing a linear guide pair, characterized by, The utility model relates to a kind of reciprocating mechanism test device, including: Base (2) and reciprocating mechanism body (3), base (2) includes reciprocating workbench (4) and control system (5), display (6) is connected on control system (5), display (6) is installed on reciprocating workbench (4), reciprocating workbench (4) is connected with the reciprocating mechanism body (3) described above; Reciprocating mechanism body (3) includes guide rail pair test unit group (7) and fixed mechanism (31), fixed mechanism (31) is installed on the both sides of guide rail pair test unit group (7), fixed mechanism (31) is fixed between each other by double cylinder shaft (32), limiting rod is in reciprocating workbench (4), fixed mechanism (31) is also installed with drive connecting member (33), guide rail pair test unit group (7) includes two pairs of opposite guide rail pairs (73), guide rail pair includes slider (71) and guide rail (72), drive connecting member (33) is installed on the both sides of guide rail (72), double cylinder shaft (32) drives fixed mechanism (31), so as to drive guide rail (72) connected on drive connecting member (33) to do to and fro movement.

2. The reciprocating mechanism for testing a linear guide pair according to claim 1, characterized in that: The both sides of fixed mechanism (31) are each equipped with opening (35), opening (35) is equipped with balance lever (36) inside, balance lever (36) is connected to opposite fixed mechanism (31), balance lever (36) passes through the reciprocating workbench (4) described above.

3. The reciprocating mechanism for testing a linear guide pair according to claim 1, characterized in that: The bottom of the reciprocating workbench (4) is equipped with pulley (8).

4. The reciprocating mechanism for testing a linear guide pair according to claim 1, characterized in that: The drive connecting member (33) is equipped with connecting block (37), the recess (38) matched with guide rail (72) is set in connecting block (37), and guide rail (72) is clamped and fixed in recess (38).

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