A CNC machine tool spindle assembly inspection device

Abstract

This utility model belongs to the field of CNC machine tool assembly and inspection technology, and provides a CNC machine tool spindle assembly and inspection device, including a base, a mounting plate, an adjustment mechanism, and a dial indicator. A moving component drives the mounting seat at one end to move, which in turn drives the middle mounting seat to move via a spring. This allows adjustment of the spacing between the three sets of mounting seats, so that when the mounting seats at both ends correspond to the ends of the spindle, the middle mounting seat aligns with the center of the spindle. By moving the base and adjusting the lifting mechanism, the detection rods of the three sets of dial indicators are brought into contact with the circumference of the spindle, allowing simultaneous detection of radial runout at both ends and the center of the spindle. This facilitates simultaneous detection of radial runout at both ends and the center of the spindle, and can adapt to spindles of different lengths, improving inspection efficiency and the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool assembly and testing technology, and specifically to a CNC machine tool spindle assembly and testing device. Background Technology

[0002] The circular runout of a CNC machine tool spindle is a key indicator for measuring its rotational accuracy and plays a decisive role in machining quality. When spindle runout exists, the contact point between the tool and the workpiece will constantly change, causing fluctuations in the depth of cut. Therefore, after the spindle is assembled, its circular runout needs to be tested.

[0003] For example, Chinese patent application number 201921503932.2 discloses a CNC machine tool spindle detection device, including a support plate. Both sides of the top outer wall of the support plate are provided with rotary clamping mechanisms, and fixed plates are welded to the top outer wall of the support plate near the rotary clamping mechanisms. The same top plate is welded to the outer wall of the opposite side of the two fixed plates, and two connecting plates are welded to the bottom outer wall of the top plate. The same electric slide rail is fixed to the outer wall of the opposite side of the two connecting plates by bolts, and a slider is slidably connected to the outer wall of one side of the electric slide rail.

[0004] In actual testing, radial runout detection is usually required at both ends and the middle of the spindle. However, existing technologies can only detect radial runout at one location at a time, which reduces testing efficiency. Therefore, to address the above technical problems, a CNC machine tool spindle assembly testing device is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model proposes a CNC machine tool spindle assembly inspection device, which facilitates the simultaneous detection of radial runout at both ends and the middle of the spindle, and can adapt to spindles of different lengths, thereby improving inspection efficiency and the practicality of the device.

[0006] A CNC machine tool spindle assembly and inspection device, comprising:

[0007] Base;

[0008] The mounting plate is vertically movable on the base via a lifting mechanism;

[0009] An adjusting mechanism includes a mounting base, a spring, and a moving assembly. Three sets of mounting bases are arranged in a long-distance array on the top of the mounting plate. One set of mounting bases is fixed to one end of the mounting plate, while the other two sets are slidably disposed on the mounting plate along its length. The spring is connected to one side of all three sets of mounting bases. The moving assembly is disposed on the mounting plate and is used to drive the other set of mounting bases to move.

[0010] The dial indicator is detachably mounted on the top of each of the three sets of mounting bases.

[0011] The beneficial effects of the above-mentioned CNC machine tool spindle assembly and inspection device are as follows:

[0012] The moving component drives the mounting base at one end to move, which in turn drives the middle mounting base to move via a spring. At this time, the spacing of the three sets of mounting bases can be adjusted so that when the mounting bases at both ends correspond to the two ends of the spindle, the middle mounting base can correspond to the middle of the spindle. Then, by moving the base and adjusting the lifting mechanism, the detection rods of the three sets of dial indicators can be made to contact the circumference of the spindle, so that the radial runout of the two ends and the middle of the spindle can be detected simultaneously. This facilitates the simultaneous detection of the radial runout of the two ends and the middle of the spindle, and can adapt to spindles of different lengths, improving detection efficiency and the practicality of the device.

[0013] In one embodiment, the lifting mechanism includes columns, first screws, guide blocks, and a linkage assembly; the base has columns at both ends on one side, and guide grooves are provided on one side of both sets of columns; the mounting plate has guide blocks at both ends; the two sets of guide blocks are slidably disposed in the two sets of guide grooves in a vertical direction; the two sets of guide grooves each have a rotatable first screw vertically disposed in them; the two sets of first screws are threadedly connected to the two sets of guide blocks respectively; and the linkage assembly connects the two sets of first screws so that the two sets of first screws can rotate synchronously.

[0014] In one embodiment, the linkage assembly includes a timing pulley and a timing belt; the bottom end of the base is provided with a clearance groove, and the bottom ends of the two sets of first screws extend into the clearance groove and are coaxially provided with the timing pulleys, and the two sets of timing pulleys are connected by the timing belt.

[0015] In one embodiment, the tips of both sets of the first screws extend beyond the column and are connected to a first crank handle.

[0016] In one embodiment, the top of the mounting plate is provided with a T-shaped groove, and the bottom of both sets of mounting seats are provided with T-shaped sliders. The two sets of T-shaped sliders are slidably disposed in the T-shaped groove along the length direction of the mounting plate.

[0017] In one embodiment, the movable component includes a second screw; the second screw is disposed along the length of the mounting plate and rotatably disposed on the mounting plate, and the second screw is threadedly connected to the mounting seat at the other end.

[0018] In one embodiment, both ends of the second screw extend beyond the mounting plate and are provided with a second crank handle.

[0019] In one embodiment, each of the three sets of mounting bases has a placement groove at its top, and the dial base of the dial indicator can be placed in the placement groove. Each of the three sets of mounting bases has a fixed knob threadedly connected to its side wall. Rotating the fixed knob can cause one end of the fixed knob to abut against the periphery of the dial base. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 A three-dimensional structural schematic diagram of a CNC machine tool spindle assembly and testing device provided in an embodiment of this utility model;

[0022] Figure 2 for Figure 1 An exploded view of a CNC machine tool spindle assembly and inspection device is shown.

[0023] Figure 3 for Figure 1 An exploded view of the adjustment mechanism in a CNC machine tool spindle assembly and testing device is shown.

[0024] Figure 4 for Figure 1 The image shows an exploded view of the mounting base in a CNC machine tool spindle assembly and testing device.

[0025] Figure label:

[0026] 10. Base;

[0027] 20. Mounting plate; 201. T-slot;

[0028] 30. Mounting base; 301. Spring; 302. T-slider; 303. Second screw; 304. Second crank handle; 305. Placement slot; 306. Fixing knob;

[0029] 40. Dial indicator;

[0030] 50. Column; 501. First screw; 502. Guide block; 503. Guide groove; 504. Synchronous pulley; 505. Synchronous belt; 506. First crank handle. Detailed Implementation

[0031] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0032] Please see Figure 1 One embodiment of a CNC machine tool spindle assembly testing device includes a base 10, a mounting plate 20, an adjustment mechanism, and a dial indicator 40.

[0033] The mounting plate 20 is vertically adjustable on the base 10 via a lifting mechanism. The adjustment mechanism includes a mounting seat 30, a spring 301, and a moving component. Three sets of mounting seats 30 are arranged in a long-distance array at the top of the mounting plate 20. One set of mounting seats 30 is fixed to one end of the mounting plate 20, while the other two sets of mounting seats 30 are slidably mounted on the mounting plate 20 along its length. A spring 301 is connected to one side of each of the three sets of mounting seats 30. The moving component is mounted on the mounting plate 20 and is used to drive the other set of mounting seats 30 to move. A dial indicator 40 is detachably mounted on the top of each of the three sets of mounting seats 30.

[0034] In the above embodiment, the mounting base 30 at one end is moved by the moving component. The movement of the mounting base 30 can drive the middle mounting base 30 to move through the spring 301. At this time, the spacing of the three sets of mounting bases 30 can be adjusted so that when the mounting bases 30 at both ends correspond to the two ends of the spindle (not shown), the middle mounting base 30 can correspond to the middle of the spindle. Then, by moving the base 10 and adjusting the lifting mechanism, the detection rods in the three sets of dial indicators 40 can be made to contact the periphery of the spindle, so that the radial runout of the two ends and the middle of the spindle can be detected simultaneously. This facilitates the simultaneous detection of the radial runout of the two ends and the middle of the spindle, and can adapt to spindles of different lengths, improving detection efficiency and the practicality of the device.

[0035] Please see Figure 1 and Figure 2 In one embodiment, the lifting mechanism includes a column 50, a first screw 501, a guide block 502, and a linkage assembly. A column 50 is provided at both ends of one side of the base 10, and a guide groove 503 is provided on one side of each of the two sets of columns 50. Guide blocks 502 are provided at both ends of the mounting plate 20. The two sets of guide blocks 502 can slide vertically within the two sets of guide grooves 503. A rotatable first screw 501 is vertically provided within each of the two sets of guide grooves 503. The two sets of first screws 501 are threadedly connected to the two sets of guide blocks 502 respectively. The linkage assembly connects the two sets of first screws 501 so that the two sets of first screws 501 can rotate synchronously.

[0036] In the above embodiment, by rotating one set of first screws 501, the rotation of the first screws 501 drives the other set of first screws 501 to rotate synchronously through the linkage component. The synchronous rotation of the two sets of first screws 501 and the threaded engagement of the two sets of guide blocks 502 can drive the two sets of guide blocks 502 to slide in the vertical direction, making it convenient to drive the mounting plate 20 to rise and fall. Moreover, the operator can drive the mounting plate 20 to rise and fall from both ends of the base 10, which is convenient to use. At the same time, the synchronous rotation of the two sets of first screws 501 and the threaded engagement of the two sets of guide blocks 502 can improve the stability of driving the mounting plate 20 to rise and fall.

[0037] Specifically, in the above embodiments, the linkage assembly includes a synchronous pulley 504 and a synchronous belt 505; a clearance groove is provided at the bottom end of the base 10, and the bottom ends of both sets of first screws 501 extend into the clearance groove and are coaxially provided with synchronous pulleys 504, which are connected by the synchronous belt 505. When one set of first screws 501 rotates, the rotation of the first screw 501 drives the synchronous pulley 504 at its bottom end to rotate, and the rotation of the synchronous pulley 504 can drive the other set of synchronous pulleys 504 and the other set of first screws 501 to rotate synchronously through the synchronous belt 505, making it convenient to drive the two sets of first screws 501 to rotate synchronously.

[0038] Specifically, in the above embodiment, the top ends of both sets of first screws 501 extend beyond the column 50 and are connected to a first rocker handle 506. Holding the first rocker handle 506 facilitates driving the first screws 501 to rotate, making the rotation of the first screws 501 convenient and effortless.

[0039] Please see Figure 2 and Figure 3 In one embodiment, a T-shaped groove 201 is provided at the top of the mounting plate 20, and a T-shaped slider 302 is provided at the bottom of each of the two sets of mounting seats 30. The two sets of T-shaped sliders 302 are slidably disposed in the T-shaped groove 201 along the length direction of the mounting plate 20.

[0040] In the above embodiments, the stability of the sliding of the two sets of mounting seats 30 can be improved by the cooperation of the T-shaped slider 302 and the T-shaped groove 201.

[0041] Please see Figures 1 to 3 In one embodiment, the movable component includes a second screw 303; the second screw 303 is arranged along the length direction of the mounting plate 20 and is rotatably mounted on the mounting plate 20, and the second screw 303 is threadedly connected to the mounting seat 30 at the other end.

[0042] In the above embodiment, the mounting base 30 can be moved by rotating the second screw 303 in thread engagement with the mounting base 30. The movement of the mounting base 30 is convenient, thereby facilitating the adjustment of the spacing between the three sets of mounting bases 30.

[0043] Specifically, in the above embodiment, both ends of the second screw 303 extend beyond the mounting plate 20 and are provided with second crank handles 304. By holding the second crank handles 304, the second screw 303 can be easily driven to rotate, and the operator can drive the second screw 303 to rotate from both ends of the base 10, making it convenient to use.

[0044] Please see Figure 1 and Figure 4 In one embodiment, each of the three sets of mounting bases 30 has a placement groove 305 at its top, and the dial base of the dial gauge 40 can be placed in the placement groove 305. Each of the three sets of mounting bases 30 has a fixing knob 306 threadedly connected to its side wall. Rotating the fixing knob 306 can cause one end of the fixing knob 306 to abut against the periphery of the dial base.

[0045] In the above embodiment, after the dial of the dial indicator 40 is placed in the placement slot 305, the dial indicator 40 can be fixed on the mounting base 30 by rotating the fixing knob 306 so that one end of the fixing knob 306 abuts against the periphery of the dial. Conversely, the fixing of the dial indicator 40 can be canceled by rotating the fixing knob 306 in the opposite direction so that one end of the fixing knob 306 separates from the periphery of the dial. At this time, the dial indicator 40 can be removed from the mounting base 30. The installation and removal of the dial indicator 40 is convenient, and it is easy to remove the dial indicator 40 for separate storage when the device is not in use, so as to avoid damage to the dial indicator 40.

[0046] The specific implementation of the above-mentioned CNC machine tool spindle assembly and inspection device is as follows:

[0047] By holding the second crank handle 304, the second screw 303 is rotated. The rotation of the second screw 303 engages with the threaded mounting seat 30 at one end, driving the mounting seat 30 to move. The movement of the mounting seat 30, in turn, drives the middle mounting seat 30 to move via the spring 301, thereby adjusting the spacing of the three sets of mounting seats 30. This ensures that when the mounting seats 30 at both ends correspond to the ends of the main shaft, the middle mounting seat 30 aligns with the center of the main shaft. Then, by moving the base 10 and rotating the first crank handle 506, the first screw 501 is rotated. The rotation of the first screw 501 drives the synchronous pulley 504 at the bottom to rotate, which in turn drives another set of synchronous pulleys via the synchronous belt 505. The stepper pulley 504 and another set of first screws 501 rotate synchronously. The synchronous rotation of the two sets of first screws 501, in conjunction with the threaded engagement of the two sets of guide blocks 502, drives the two sets of guide blocks 502 to slide the mounting plate 20 in the vertical direction. The sliding of the mounting plate 20 in the vertical direction drives the three sets of mounting seats 30 to slide in the vertical direction. When the detection rods in the dial indicators 40 on the three sets of mounting seats 30 are all in contact with the circumference of the main shaft, the radial runout at both ends and the middle of the main shaft can be detected simultaneously. This facilitates the simultaneous detection of the radial runout at both ends and the middle of the main shaft, and can adapt to main shafts of different lengths, improving detection efficiency and the practicality of the device.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A CNC machine tool spindle assembly inspection device, characterized in that, include: Base (10); The mounting plate (20) is mounted on the base (10) in a vertically movable manner via a lifting mechanism; The adjustment mechanism includes a mounting base (30), a spring (301), and a moving component. Three sets of mounting bases (30) are arranged in a long-distance array on the top of the mounting plate (20). One end of the mounting base (30) is fixed to one end of the mounting plate (20), and the other two sets of mounting bases (30) are slidably disposed on the mounting plate (20) along its length. The spring (301) is connected to one side of all three sets of mounting bases (30). The moving component is disposed on the mounting plate (20) and is used to drive the other end of the mounting base (30) to move. The dial indicator (40) is detachably mounted on the top of each of the three sets of mounting bases (30).

2. The CNC machine tool spindle assembly inspection device according to claim 1, characterized in that, The lifting mechanism includes a column (50), a first screw (501), a guide block (502), and a linkage assembly; the base (10) has a column (50) at both ends on one side, and a guide groove (503) is opened on one side of each of the two sets of columns (50). The mounting plate (20) has a guide block (502) at both ends. The two sets of guide blocks (502) can slide in the two sets of guide grooves (503) in the vertical direction. The two sets of guide grooves (503) each have a rotatable first screw (501) vertically arranged in the two sets of guide grooves (503). The two sets of first screws (501) are threadedly connected to the two sets of guide blocks (502) respectively. The linkage assembly connects the two sets of first screws (501) so that the two sets of first screws (501) can rotate synchronously.

3. The CNC machine tool spindle assembly inspection device according to claim 2, characterized in that, The linkage assembly includes a synchronous pulley (504) and a synchronous belt (505); the bottom end of the base (10) is provided with a clearance groove, and the bottom ends of the two sets of first screws (501) extend into the clearance groove and are coaxially provided with the synchronous pulleys (504). The two sets of synchronous pulleys (504) are connected by the synchronous belt (505).

4. The CNC machine tool spindle assembly inspection device according to claim 2, characterized in that, The top ends of the first screws (501) of both sets extend out of the column (50) and are connected to the first rocker handle (506).

5. The CNC machine tool spindle assembly inspection device according to claim 1, characterized in that, The top of the mounting plate (20) is provided with a T-shaped groove (201), and the bottom of the two sets of mounting seats (30) are provided with T-shaped sliders (302). The two sets of T-shaped sliders (302) are slidably disposed in the T-shaped groove (201) along the length direction of the mounting plate (20).

6. The CNC machine tool spindle assembly inspection device according to claim 1, characterized in that, The movable component includes a second screw (303); the second screw (303) is arranged along the length direction of the mounting plate (20) and is rotatably mounted on the mounting plate (20), and the second screw (303) is threadedly connected to the mounting seat (30) at the other end.

7. The CNC machine tool spindle assembly inspection device according to claim 6, characterized in that, The second screw (303) extends beyond the mounting plate (20) at both ends and is provided with a second rocker handle (304).

8. The CNC machine tool spindle assembly inspection device according to claim 1, characterized in that, The top of each of the three sets of mounting bases (30) is provided with a placement groove (305), and the dial base of the dial indicator (40) can be placed in the placement groove (305). The side walls of the three sets of mounting bases (30) are threaded with a fixing knob (306). Rotating the fixing knob (306) can make one end of the fixing knob (306) abut against the periphery of the dial base.

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