Long-stroke machine tool stand column compensation device

Abstract

The utility model discloses a long-stroke machine tool stand column compensation device which comprises a dynamometer frame provided with a connector and a steel wire rope, and further comprises a sleeve detachably connected to the dynamometer frame, clamping sleeves which are symmetrically arranged are movably arranged in the sleeve, an inner inclined sleeve is arranged in the sleeve, the clamping sleeves are provided with inclined planes in sliding fit with the inner inclined sleeve, and the inclined planes are connected with the connecting head. And the two clamping sleeves are in sliding fit to clamp the steel wire rope. According to the long-stroke machine tool stand column compensation device, the clamping sleeve is arranged in the sleeve in advance, then the steel wire rope and the surrounding end of the steel wire rope are arranged in the clamping sleeve, and at the moment, the sleeve and the dynamometer frame are installed, so that the clamping sleeve gradually gets close to the connector and abuts against the connector; and the two jackets draw close to each other and clamp the steel wire rope and the end part of the steel wire rope in the process that the inner inclined sleeve is attached to the inclined surface, so that the connection stabilizing effect of the steel wire rope is additionally enhanced, the steel wire rope is prevented from loosening during working, and the accuracy of the test result of the dynamometer is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool column adjustment, in particular to a long-stroke machine tool column compensation device. Background Art

[0002] The column compensation device is often installed in the column of the machine tool. The purpose is to improve the lifting accuracy of the Y-axis of the machine tool. A dynamometer is connected to the top of the wire rope in the column. The dynamometer is connected to the ball screw. A servo motor is used to drive the ball screw to pull the wire rope to achieve a numerical change in the dynamometer, which is then compared with the pre-set tension database and the reverse length of the wire rope is adjusted accordingly.

[0003] According to the publication (announcement) number: CN204565772U, the publication (announcement) date: 2015-08-19, a hydraulic long-stroke machine tool column precision compensation device is disclosed.

[0004] According to the publication (announcement) number: CN204565791U, the publication (announcement) date: 2015-08-19, a mechanical long-stroke machine tool column precision compensation device is disclosed.

[0005] In the prior art including the above-mentioned patent, in order to test the load degree of the spindle box or the boring and milling power head moving up and down, it is necessary to use a wire rope in conjunction with a dynamometer for repeated testing. During this period, the winding connection between the upper part of the wire rope and the dynamometer will inevitably cause the end of the wire rope to bend downward. In the repeated testing process, the wire rope under the load state is prone to wear at the connection position with the dynamometer. Over time, the wire rope will become loose to a certain extent, thereby affecting the tensile test results of the wire rope and increasing the test error of the dynamometer. Utility Model Content

[0006] The utility model aims to provide a long-stroke machine tool column compensation device, aiming to solve the above-mentioned problems.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A long-stroke machine tool column compensation device comprises a dynamometer frame provided with a connector and a steel wire rope, and also comprises a sleeve detachably connected to the dynamometer frame, wherein a symmetrically arranged jacket is movably provided in the sleeve;

[0009] An inner oblique sleeve is arranged in the sleeve, and an inclined surface which is slidably matched with the inner oblique sleeve is arranged on the clamping sleeve, so that the two clamping sleeves are slidably matched to clamp the wire rope.

[0010] Preferably, a protrusion is fixedly mounted on the jacket, and the inclined surface is provided on the protrusion.

[0011] Preferably, a rotating sleeve is provided at one end of the sleeve, and a threaded sleeve threadedly connected to the dynamometer frame is provided at the other end of the sleeve.

[0012] Preferably, the dynamometer frame is provided with an outer cylinder located outside the sleeve.

[0013] Preferably, a clamping block for clamping the protrusion is slidably provided on the sleeve.

[0014] Preferably, the clamping block is slidably matched with the inner wall of the outer cylinder so as to enable the clamping block to secure the steel wire rope.

[0015] In the above technical scheme, a long-stroke machine tool column compensation device provided by the utility model has the following beneficial effects: by placing the jacket in the sleeve in advance, and then placing the wire rope and its wrapped end in the jacket, the sleeve and the dynamometer frame are installed at this time so that the jacket gradually approaches and contacts the connecting head, and in the process of the inner bevel sleeve fitting the bevel, the two jackets are brought close to each other and clamp the wire rope and its end, thereby additionally strengthening the connection and stabilization effect of the wire rope, so that the wire rope will not loosen during operation, thereby ensuring the accuracy of the dynamometer test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the connection structure of a dynamometer, a steel wire rope and a sleeve provided in an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the explosion structure of a dynamometer, a steel wire rope, a sleeve and a jacket provided in an embodiment of the utility model;

[0019] Figure 3 A side cross-sectional schematic diagram of a dynamometer, a steel wire rope, a sleeve and a jacket provided in an embodiment of the utility model;

[0020] Figure 4 A schematic diagram of multiple clamping block structures provided in an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. Dynamometer frame; 11. Connector; 12. Wire rope; 2. Sleeve; 21. Rotary sleeve; 22. Screw sleeve; 23. Inner inclined sleeve; 3. Clamping sleeve; 31. Bump; 32. Inclined surface; 4. Outer cylinder; 5. Clamping block; 51. Sliding hole; 52. Sliding block. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] like Figure 1-4 As shown, a long-stroke machine tool column compensation device includes a dynamometer frame 1 provided with a connector 11 and a wire rope 12, and also includes a sleeve 2 detachably connected to the dynamometer frame 1, and a symmetrically arranged jacket 3 is movably provided in the sleeve 2;

[0025] An inner oblique sleeve 23 is arranged in the sleeve 2, and an inclined surface 32 which is slidably matched with the inner oblique sleeve 23 is arranged on the clamping sleeve 3, so that the two clamping sleeves 3 are slidably matched to clamp the wire rope 12.

[0026] Specifically, the dynamometer frame 1 has a dynamometer frame, and the connector 11 is fixedly installed below the dynamometer. The wire rope 12 will wrap around the connector 11, and the wrapped end will fit the wire rope 12 itself (such as Figure 3 As shown), the connection method between the wire rope 12 and the connector 11 is the prior art and will not be described in detail here.

[0027] Furthermore, a telescopic rod is fixedly installed between the two ends of the jacket 3, and the travel of the telescopic rod itself can adapt to the specifications of the wire rope 12, so as to avoid the jacket 3 being unable to clamp and fix the wire rope 12.

[0028] Furthermore, the inner bevel sleeve 23 is fixedly installed at the end of the sleeve 2, and the closer to the end of the sleeve 2, the smaller the inner wall diameter of the sleeve 2 is. The inner wall of the jacket 3 is fixedly installed with anti-slip rubber, and the material of the anti-slip rubber is existing technology and will not be described here.

[0029] By placing the jacket 3 in the sleeve 2 in advance, and then placing the wire rope 12 and its wrapped end in the jacket 3, the sleeve 2 and the dynamometer frame 1 are installed at this time so that the jacket 3 gradually approaches and contacts the connector 11, and in the process of the inner bevel sleeve 23 fitting the bevel 32, the two jackets 3 are brought close to each other and clamp the wire rope 12 and its end, thereby additionally strengthening the connection and stabilization effect of the wire rope 12, so that the wire rope 12 will not loosen during operation, thereby ensuring the accuracy of the dynamometer test results.

[0030] As an embodiment further provided by the present invention, a protrusion 31 is fixedly mounted on the jacket 3 , and an inclined surface 32 is provided on the protrusion 31 .

[0031] Specifically, the protrusion 31 is located on the side wall of the jacket 3 with an arc-shaped cross section, and the inclination angle of the inclined surface 32 is the same as the inclination angle of the inner inclined sleeve 23 .

[0032] By placing the jacket 3 close to the inner bevel sleeve 23 when it is placed in the sleeve 2, it is easier for the inner bevel sleeve 23 and the inclined surface 32 to slide together when the sleeve 2 is installed, so that the inclined surface 32 is gradually squeezed by the inner bevel sleeve 23 to drive the two jackets 3 to move closer to each other, thereby providing an additional clamping effect for the wire rope 12 in a simple and efficient manner.

[0033] As another embodiment further provided by the present invention, a rotary sleeve 21 is provided at one end of the sleeve 2 , and a threaded sleeve 22 which is threadedly connected to the dynamometer frame 1 is provided at the other end of the sleeve 2 .

[0034] Specifically, the rotating sleeve 21 is a polygonal notch opened on the side wall of the sleeve 2, which makes it convenient for the staff to use tools to rotate the sleeve 2 for installation.

[0035] By applying force to the rotating sleeve 21, the sleeve 2 is screwed into the screw groove opened on the dynamometer frame 1 through the screw sleeve 22, so that the sleeve 2 can drive the jacket 3 to contact the connector 11 and then continue to be screwed in, so that the two sleeves 2 are gradually squeezed closer to each other during the threaded engagement of the sleeve 2, so that the clamped wire rope 12 is more stable and the sleeve 2 is not easy to slip due to the threaded engagement.

[0036] As another embodiment further provided by the present invention, the dynamometer frame 1 is provided with an outer cylinder 4 outside the sleeve 2 .

[0037] Specifically, the outer cylinder 4 is fixedly mounted on the dynamometer frame 1 .

[0038] As the sleeve 2 is gradually screwed in, it enters the outer cylinder 4, so that the outer cylinder 4 provides shielding and protection for the sleeve 2, so that the sleeve 2 will not slip due to external interference after being screwed in.

[0039] As another embodiment further provided by the present invention, a clamping block 5 for clamping the protrusion 31 is slidably provided on the sleeve 2 .

[0040] Specifically, a sliding hole 51 is opened on the side wall of the sleeve 2, and the clamping block 5 slides in the sliding hole 51, and a plurality of sliders 52 are fixedly installed on the clamping block 5. The sliders 52 slide in the slideways opened on the inner wall of the sliding hole 51 to provide stability for the sliding of the clamping block 5, and a spring is fixedly installed between the sliders 52 and the slideways.

[0041] After the sleeve 2 enters the outer tube 4, a plurality of annularly arranged clamping blocks 5 are located in the outer tube 4, so that the clamping blocks 5 are also protected, and the spring in the default state causes the clamping blocks 5 to extend out of the side wall of the sleeve 2, so that the clamping blocks 5 in the inner wall of the sleeve 2 are retracted, so that the clamping blocks 5 do not interfere with the insertion of the sleeve 3, and after the sleeve 3 is inserted into the sleeve 2, the position of the clamping blocks 5 is between the protrusion 31 and the connector 11, so that the clamping blocks 5 do not interfere with the sliding fit between the inner inclined sleeve 23 and the inclined surface 32, thereby ensuring the stable operation of the sleeve 3.

[0042] As another embodiment further provided by the present invention, the clamp block 5 is slidably matched with the inner wall of the outer tube 4 so as to enable the clamp block 5 to secure the steel wire rope 12 .

[0043] Specifically, the end of the clamp block 5 is rounded so that the clamp block 5 can quickly slide from the end of the outer tube 4 into the outer tube 4 .

[0044] After the sleeve 2 enters the outer cylinder 4, multiple clamping blocks 5 slide into the outer cylinder 4 from the port of the outer cylinder 4, and make the clamping blocks 5 resist the inner wall of the outer cylinder 4, accompanied by the compression deformation of the spring. At this time, multiple clamping blocks 5 move radially toward the axis of the sleeve 2, and make the clamping blocks 5 clamp the end of the protrusion 31, so that the sleeve 3 is further subjected to the thrust force, so that the wire rope 12 can be tested more stably.

[0045] Working principle: by pre-placing the jacket 3 in the sleeve 2, and then placing the wire rope 12 and its wrapped end in the jacket 3, the sleeve 2 and the dynamometer frame 1 are screwed in and installed, so that the jacket 3 gradually approaches and contacts the connector 11, and in the process of the inner inclined sleeve 23 fitting the inclined surface 32, the two jackets 3 are brought close to each other and clamp the wire rope 12 and its end, so as to additionally strengthen the connection and stability of the wire rope 12, so that the wire rope 12 will not loosen during operation, and after the sleeve 2 enters the outer cylinder 4, a plurality of clamping blocks 5 slide into the outer cylinder 4 from the port of the outer cylinder 4, and make the clamping blocks 5 contact the inner wall of the outer cylinder 4, accompanied by the compression deformation of the spring, at this time, a plurality of clamping blocks 5 move radially toward the axis of the sleeve 2, and make the clamping blocks 5 clamp the end of the protrusion 31, so that the jacket 3 is further subjected to the thrust, so that the wire rope 12 can be tested more stably.

[0046] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A long-stroke machine tool column compensation device, comprising a dynamometer frame (1) provided with a connector (11) and a steel wire rope (12), characterized in that: It also comprises a sleeve (2) which is detachably connected to the dynamometer frame (1), wherein a symmetrically arranged jacket (3) is movably arranged in the sleeve (2); An inner oblique sleeve (23) is arranged in the sleeve (2), and an inclined surface (32) which is slidably matched with the inner oblique sleeve (23) is arranged on the clamping sleeve (3), so that the two clamping sleeves (3) are slidably matched to clamp the wire rope (12).

2. A long-stroke machine tool column compensation device according to claim 1, characterized in that: A convex block (31) is fixedly mounted on the jacket (3), and the inclined surface (32) is formed on the convex block (31).

3. The long-stroke machine tool column compensation device according to claim 1, characterized in that: A rotating sleeve (21) is arranged at one end of the sleeve (2), and a threaded sleeve (22) which is threadedly connected to the dynamometer frame (1) is arranged at the other end of the sleeve (2).

4. The long-stroke machine tool column compensation device according to claim 2, characterized in that: The dynamometer frame (1) is provided with an outer cylinder (4) located outside the sleeve (2).

5. The long-stroke machine tool column compensation device according to claim 4, characterized in that: A clamping block (5) for clamping the protrusion (31) is slidably arranged on the sleeve (2).

6. A long-stroke machine tool column compensation device according to claim 5, characterized in that: The clamping block (5) is slidably matched with the inner wall of the outer cylinder (4) so ​​as to enable the clamping block (5) to abut against the steel wire rope (12).

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