Accurate machining thermal deformation adaptive temperature control compensation device

Abstract

The utility model relates to the technical field of temperature control compensation, concretely is precision machining thermal deformation adaptive temperature control compensation device, including X -axis sliding block, Y -axis sliding block, base, mounting seat, the clamping block of setting at the both sides of base and the connecting block of setting at the both sides of mounting seat top, still include: Z -axis sliding block and drive mechanism, Z -axis sliding block includes sliding block, the sliding block is cooperated with X -axis sliding block and slides, all be provided with drive mechanism on X -axis sliding block and Y -axis sliding block, drive X -axis sliding block along Y -axis sliding block sliding through setting drive mechanism along X -axis direction, setting drive mechanism along Y -axis direction, drive Y -axis sliding block along base sliding, and in Z -axis sliding block, both sides set up synchronous cylinder and push the sliding block, under the limiting of X -axis sliding block, along X -axis direction moves, can realize the device for the precision equipment, because of the different local thermal error, the demand of real -time adaptive adjustment thermal compensation quantity, has improved the practicality of device.

Description

Technical Field

[0001] This utility model relates to the field of temperature control compensation technology, specifically to a precision machining thermal deformation adaptive temperature control compensation device. Background Technology

[0002] The thermal error of CNC machine tools mainly stems from the combined effect of internal heat sources and environmental thermal disturbances. Internal heat sources include the electric motor, frictional motion pairs (such as bearings and gears), and the heat generated during the cutting process. Among these, the heat generated by frictional motion pairs has the most significant impact on accuracy. Factors such as ambient temperature fluctuations and cooling system efficiency can also exacerbate thermal deformation, leading to a decrease in machining accuracy.

[0003] To address the problem of decreased machining accuracy caused by thermal errors during precision machining, Chinese Patent Publication No. CN213917348U discloses a thermal error deformation compensation device for CNC machine tools. The device includes a worktable operating plate, a mounting block, and a positioning plate. A base plate is mounted on the upper surface of the worktable operating plate, and a limit block is provided at the outer end of the base plate. A connecting rod is installed inside the limit block, and a connecting block is provided on the outer surface of the connecting rod. A shock-absorbing mechanism fixed to the upper side of the worktable operating plate is mounted at the lower end of the connecting block. A first slider is provided inside the base plate, and a second slider is installed inside the first slider. A mounting block is provided at the upper end of the second slider. A positioning plate is mounted on the upper surface of the vertical block, and a connecting plate is provided inside the positioning plate. A limit hole is formed inside the connecting plate, and a pin is installed inside the limit hole. This thermal error deformation compensation device for CNC machine tools facilitates shock absorption during installation, provides greater stability during thermal compensation adjustment, and facilitates stable positioning of the fixture.

[0004] In the above scheme, by setting the first slider, the second slider and the vertical block, they can slide along the X, Y and Z axes respectively to achieve thermal compensation for the tool or fixture. The above scheme is only applicable to the thermal compensation needs of static machining when the tool or fixture is fixed. When the tool or fixture needs to perform trajectory machining, due to the different local thermal errors in the equipment, the thermal compensation amount needs to be adjusted in real time. Therefore, we propose a precision machining thermal deformation adaptive temperature control compensation device. Utility Model Content

[0005] To solve the above-mentioned technical problems, this application provides a precision machining thermal deformation adaptive temperature control compensation device, including an X-axis slider, a Y-axis slider, a base, a mounting base, snap-fit ​​blocks disposed on both sides of the base, and connecting blocks disposed on both sides of the top of the mounting base. It also includes a Z-axis slider and a drive mechanism. The Z-axis slider includes a slider that slides in cooperation with the X-axis slider. Both the X-axis slider and the Y-axis slider are provided with a drive mechanism.

[0006] In some embodiments, the Z-axis slider further includes connecting limit blocks disposed on the left and right sides of the top of the slider, a clamping connecting block disposed on the connecting limit block, and a synchronous cylinder base mounted on the front and rear sides of the X-axis slider. The connecting limit block and the clamping connecting block are slidably connected. The connecting limit block and the clamping connecting block are provided with a plurality of through holes at equal intervals in a linear manner. A cylinder is disposed on each of the two synchronous cylinder bases.

[0007] In some embodiments, the bottom of the X-axis slider is provided with symmetrical protrusions, and the X-axis slider slides in cooperation with the Y-axis slider through the protrusions.

[0008] In some embodiments, the bottom of the Y-axis slider is provided with symmetrical protrusions, and the X-axis slider slides in cooperation with the base through the protrusions.

[0009] In some embodiments, the drive mechanism includes a lead screw arranged symmetrically, pulleys disposed at both ends of the lead screw, a synchronous belt disposed between the pulleys on the same side, a drive housing mounted on the outside of the synchronous belt, a motor disposed on the outer surface of the drive housing on one side, and a motor mounting bracket for fixing the motor, wherein the pulleys are driven by the motor.

[0010] In some embodiments, the drive mechanism on the X-axis slider is mounted on the left and right sides of the Y-axis slider via a motor mounting bracket.

[0011] In some embodiments, the drive mechanism on the Y-axis slider is mounted on the front and rear sides of the base via a motor mounting bracket.

[0012] In some embodiments, the two snap-fit ​​blocks and the two connecting blocks engage with each other, and the snap-fit ​​blocks and the connecting blocks are connected by bolts.

[0013] In some embodiments, a connecting post is provided below the connecting block, the connecting post is fixed on the mounting base, a connecting rod is provided between the connecting post and the connecting block, the connecting rod is fixed on the connecting block, the connecting rod is slidably connected to the connecting post, and a spring is sleeved along the connecting rod between the connecting post and the connecting block.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. This utility model, by setting a driving mechanism along the X-axis direction to drive the X-axis slider to slide along the Y-axis slider, and setting a driving mechanism along the Y-axis direction to drive the Y-axis slider to slide along the base, and by setting synchronous cylinders on both sides of the Z-axis slider to push the slider, under the limit of the X-axis slider, it can move along the X-axis direction. This can realize the need for real-time adaptive adjustment of thermal compensation amount in precision equipment due to different local thermal errors, thus improving the practicality of the device.

[0016] 2. In this utility model, the motor drives a pulley to rotate in the drive mechanism, and the pulley drives the lead screws on both sides to rotate synchronously through the synchronous belt. On the symmetrical side of the motor, a pulley is also set to rotate synchronously under the limit of the synchronous belt. The two lead screws drive the X-axis slider or Y-axis slider to slide through the threaded connection, which improves the stability of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 This is a frontal half-sectional view of the present invention;

[0020] Figure 4 This is a schematic diagram of the drive mechanism structure of this utility model;

[0021] Figure 5 This utility model Figure 3 Enlarged view of the mechanism at point A in the middle.

[0022] In the diagram: 1. Z-axis slider; 11. Slider; 12. Fixture connecting block; 13. Connecting limit block; 14. Synchronous cylinder base; 2. X-axis slider; 3. Y-axis slider; 4. Base; 5. Mounting seat; 51. Connecting column; 52. Connecting rod; 6. Snap-fit ​​block; 61. Connecting bolt; 7. Connecting block; 8. Drive mechanism; 81. Motor; 82. Motor mounting seat; 83. Synchronous belt; 84. Lead screw; 85. Drive housing; 86. Pulley. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Please see Figures 1-24. This utility model provides a technical solution: a precision machining thermal deformation adaptive temperature control compensation device, including an X-axis slider 2, a Y-axis slider 3, a base 4, a mounting base 5, snap-fit ​​blocks 6 disposed on both sides of the base 4, and connecting blocks 7 disposed on both sides of the top of the mounting base 5. It also includes a Z-axis slider 1 and a drive mechanism 8. The Z-axis slider 1 includes a slider 11, which slides in cooperation with the X-axis slider 2. Both the X-axis slider 2 and the Y-axis slider 3 are provided with drive mechanisms 8.

[0026] Z-axis slider 1 also includes connecting limit blocks 13 disposed on the left and right sides of the top of slider 11, clamp connecting blocks 712 disposed on the connecting limit blocks 13, and synchronous cylinder bases 14 disposed on the front and rear sides of X-axis slider 2. The connecting limit blocks 13 and the clamp connecting blocks 712 are slidably connected. Several through holes are linearly and equally spaced on the connecting limit blocks 13 and the clamp connecting blocks 712. Cylinders are disposed on both synchronous cylinder bases 14.

[0027] Z-axis slider 1 consists of slider 11, connecting limit block 13, clamp connecting block 712 and synchronous cylinder base 14. Slider 11 slides with X-axis slider 2 to achieve fine adjustment in the Z-axis direction. Connecting limit block 13 and clamp connecting block 712 are connected by linearly spaced through holes, allowing lateral position adjustment and fixing the clamp. The cylinder on synchronous cylinder base 14 pushes slider 11 to move along the X-axis direction to compensate for displacement deviation caused by thermal deformation.

[0028] The bottom of the X-axis slider 2 is symmetrically provided with protrusions at the front and back. The X-axis slider 2 slides in cooperation with the Y-axis slider 3 through the protrusions.

[0029] The bottom of the Y-axis slider 3 is symmetrically provided with protrusions, and the X-axis slider 2 slides in cooperation with the base 4 through the protrusions.

[0030] The bottom of the X-axis slider 2 and the Y-axis slider 3 are provided with protrusions, which slide in cooperation with the Y-axis slider 3 and the base 4 respectively. The X-axis slider 2 slides along the Y-axis direction of the Y-axis slider 3 through the drive mechanism 8, and the Y-axis slider 3 slides along the X-axis direction of the base 4 through the drive mechanism 8, forming a two-dimensional planar motion basis.

[0031] The drive mechanism 8 includes symmetrically arranged lead screws 84, pulleys 86 arranged at both ends of the lead screws 84, a synchronous belt 83 arranged between the pulleys 86 on the same side, a drive housing 85 installed on the outside of the synchronous belt 83, a motor 81 arranged on the outer surface of the drive housing 85 on one side, and a motor mounting base 582 for fixing the motor 81. The pulleys 86 are driven by the motor 81.

[0032] The drive mechanism 8 includes a lead screw 84, a pulley 86, a timing belt 83, a drive housing 85, a motor 81, and a motor mounting base 582. The motor 81 drives the pulley 86 on one side, and drives the lead screws 84 on both sides to rotate synchronously through the timing belt 83. The lead screw 84 is threadedly connected to the slider 11, converting the rotational motion into the linear motion of the slider 11, thereby realizing precise X / Y axis drive.

[0033] The drive mechanism 8 on the X-axis slider 2 is mounted on the left and right sides of the Y-axis slider 3 via the motor mounting bracket 582;

[0034] The drive mechanism 8 on the Y-axis slider 3 is mounted on the front and rear sides of the base 4 via the motor mounting bracket 582.

[0035] The motor 81 of the drive mechanism 8 drives the double lead screw 84 to rotate synchronously through the synchronous belt 83, which drives the X-axis slider 2 to slide along the Y-axis slider 3 (Y-axis direction), the Y-axis slider 3 to slide along the base 4 (X-axis direction), and the synchronous cylinder pushes the slider 11 of the Z-axis slider 1 to move along the X-axis direction under the limit of the X-axis slider 2, so as to realize Z-axis compensation.

[0036] In the drive mechanism 8, the motor 81 drives a pulley 86 to rotate, and the pulley 86 drives the lead screws 84 on both sides to rotate synchronously through the synchronous belt 83. On the symmetrical side of the motor 81, the pulley 86 is also set to rotate synchronously under the limit of the synchronous belt 83. The two lead screws 84 drive the X-axis slider 2 or the Y-axis slider 3 to slide through the threaded connection.

[0037] The X / Y axis drive mechanism 8 adjusts the plane position, the Z axis cylinder performs vertical fine adjustment, the three axes linkage corrects thermal deformation displacement in real time, and the spring in the connecting block 7 buffers thermal stress fluctuations to avoid error accumulation caused by rigid connection.

[0038] The synchronous belt 83 ensures that the speed of the lead screws 84 on both sides is consistent, avoiding uneven load or jamming caused by unilateral drive. The cooperation between the protrusion and the slide groove, and the through hole design of the connecting limit block 13, all provide motion guidance and ensure repeatability positioning accuracy.

[0039] The drive mechanism 8 is set along the X-axis to drive the X-axis slider 2 to slide along the Y-axis slider 3. The drive mechanism 8 is set along the Y-axis to drive the Y-axis slider 3 to slide along the base 4. Synchronous cylinders are set on both sides of the Z-axis slider 1 to push the slider 11. Under the limit of the X-axis slider 2, it moves along the X-axis. This can realize the device's need to adjust the thermal compensation amount in real time to meet the needs of precision equipment due to different local thermal errors.

[0040] Example 2:

[0041] Please see Figures 1-5This utility model provides a technical solution: a precision machining thermal deformation adaptive temperature control compensation device, in which two snap-fit ​​blocks 6 and two connecting blocks 7 are correspondingly snapped together, and the snap-fit ​​blocks 6 and connecting blocks 7 are connected by bolts;

[0042] A connecting post 51 is provided below the connecting block 7. The connecting post 51 is fixed on the mounting base 5. A connecting rod 52 is provided between the connecting post 51 and the connecting block 7. The connecting rod 52 is fixed on the connecting block 7. The connecting rod 52 is slidably connected to the connecting post 51. A spring is sleeved on the connecting rod 52 between the connecting post 51 and the connecting block 7.

[0043] The snap-fit ​​block 6 and the connecting block 7 are located on both sides of the base 4 and the connecting block 7 is located on both sides of the top of the mounting base 5. They are fixed by the connecting bolt 61. The connecting column 51 and the connecting rod 52 are slidably connected. A spring is provided to provide pre-tightening force. The spring buffers the thermal deformation stress and assists in adaptive adjustment to ensure connection stability.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision machining thermal deformation adaptive temperature control compensation device, comprising an X-axis slider (2), a Y-axis slider (3), a base (4), a mounting base (5), snap-fit ​​blocks (6) disposed on both sides of the base (4), and connecting blocks (7) disposed on both sides of the top of the mounting base (5), characterized in that: It also includes: a Z-axis slider (1) and a drive mechanism (8). The Z-axis slider includes a slider (11), which slides in cooperation with the X-axis slider (2). Both the X-axis slider (2) and the Y-axis slider (3) are provided with drive mechanisms (8).

2. The precision machining thermal deformation adaptive temperature control compensation device according to claim 1, characterized in that: The Z-axis slider (1) also includes connecting limit blocks (13) on the left and right sides of the top of the slider (11), a clamp connecting block (12) on the connecting limit block (13), and a synchronous cylinder base (14) on the front and rear sides of the X-axis slider (2). The connecting limit block (13) and the clamp connecting block (12) are slidably connected. The connecting limit block (13) and the clamp connecting block (12) are provided with a number of through holes at equal intervals in a linear manner. A cylinder is provided on both synchronous cylinder bases (14).

3. The precision machining thermal deformation adaptive temperature control compensation device according to claim 1, characterized in that: The bottom of the X-axis slider (2) is symmetrically provided with protrusions, and the X-axis slider (2) slides in cooperation with the Y-axis slider (3) through the protrusions.

4. The precision machining thermal deformation adaptive temperature control compensation device according to claim 1, characterized in that: The Y-axis slider (3) has symmetrical protrusions on the bottom left and right, and the X-axis slider (2) slides with the base (4) through the protrusions.

5. The precision machining thermal deformation adaptive temperature control compensation device according to claim 1, characterized in that: The drive mechanism (8) includes a lead screw (84) arranged symmetrically, pulleys (86) arranged at both ends of the lead screw (84), a synchronous belt (83) arranged between the pulleys (86) on the same side, a drive housing (85) installed on the outside of the synchronous belt (83), a motor (81) arranged on the outer surface of the drive housing (85) on one side, and a motor mounting base (82) for fixing the motor (81). The pulleys (86) are driven by the motor (81).

6. The precision machining thermal deformation adaptive temperature control compensation device according to claim 5, characterized in that: The drive mechanism (8) on the X-axis slider (2) is mounted on the left and right sides of the Y-axis slider (3) via a motor mounting base (82).

7. The precision machining thermal deformation adaptive temperature control compensation device according to claim 5, characterized in that: The drive mechanism (8) on the Y-axis slider (3) is mounted on the front and rear sides of the base (4) via a motor mounting bracket (82).

8. The precision machining thermal deformation adaptive temperature control compensation device according to claim 1, characterized in that: The two snap-fit ​​blocks (6) and the two connecting blocks (7) engage with each other, and the snap-fit ​​blocks (6) and the connecting blocks (7) are connected by bolts.

9. The precision machining thermal deformation adaptive temperature control compensation device according to claim 1, characterized in that: A connecting post (51) is provided below the connecting block (7). The connecting post (51) is fixed on the mounting base (5). A connecting rod (52) is provided between the connecting post (51) and the connecting block (7). The connecting rod (52) is fixed on the connecting block (7). The connecting rod (52) is slidably connected to the connecting post (51). A spring is sleeved along the connecting rod (52) between the connecting post (51) and the connecting block (7).

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