Numerical control machine tool loading module
By installing a loading module with a lever balancing mechanism on a CNC machine tool, high-precision single-clamp milling, grinding, and polishing of hard and brittle materials can be achieved, solving the form and position tolerance problem caused by multiple clamping and improving processing efficiency and yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-03-03
AI Technical Summary
When machining high-precision, hard, and brittle materials, existing CNC machine tools often require multiple clamping operations, making it difficult to guarantee dimensional and positional tolerances, resulting in low machining efficiency and unsatisfactory yield.
The loading module of the CNC machine tool is adopted. The lever balancing mechanism uses a balancing bracket and a counterweight to balance the weight of the rotary actuator, so that it can perform machining in a suspended posture. Combined with the interpolation mechanism of the CNC machine tool, milling, grinding and polishing can be completed in one clamping.
It effectively avoids surface defects caused by processing vibration, improves processing accuracy and efficiency, and achieves good results, especially in the grinding and polishing of hard and brittle materials. Moreover, it does not require polishing and grinding fluid, and is low in cost and high in efficiency.
Smart Images
Figure CN223960974U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC machining equipment technology, and more specifically, to a CNC machine tool loading module. Background Technology
[0002] Many high-precision products on the market require both extremely high surface accuracy and very low surface roughness during processing, such as optical lenses and medical ceramics made of hard and brittle materials. This places extremely high demands on processing equipment and processes. The conventional approach is to first machine the product's shape using a high-precision CNC machining center to obtain high-precision dimensions, and then polish the surface using polishing equipment. This process requires multiple clamping operations, which is detrimental to ensuring the product's form and position tolerances, and also results in low processing efficiency and unsatisfactory product yield. Utility Model Content
[0003] This utility model provides a loading module for a CNC machine tool to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: A loading module for a CNC machine tool, installed on a CNC machine tool, includes a base frame, the top of which is provided with a central hinge and a balance bracket, the balance bracket being hinged to the base frame through the central hinge; one end of the balance bracket is provided with a front pull rod hinge, and the other end is provided with a rear pull rod hinge; a counterweight is provided inside the base frame, the counterweight being hinged to the balance bracket through the rear pull rod hinge; a rotary actuator that can slide up and down is provided on the surface of the base frame, the rotary actuator being hinged to the balance bracket through the front pull rod hinge.
[0004] Preferably, the middle hinge portion includes a crossbeam plate, with support plates at both ends of the crossbeam plate. One end of the support plate is connected to the crossbeam plate, and the other end is connected to the base frame. The crossbeam plate has two grooves, and a first hinge block is provided in the groove. The first hinge block is hinged to the crossbeam plate. The top of the first hinge block is connected to the balance bracket.
[0005] Preferably, the front tie rod hinge and the rear tie rod hinge have the same structure, and are symmetrically arranged at both ends of the balance bracket.
[0006] Preferably, the front pull rod hinge portion includes a hinge base plate, a hinge top plate, and a pair of pull rods; the hinge base plate is connected to the balance bracket and has a pair of through slots and a pair of hinge grooves; the bottom of the hinge top plate has a pair of second hinge blocks, which are configured to cooperate with the pair of hinge grooves, and the second hinge blocks are hinged to the hinge plate; the hinge top plate has a pair of sliding grooves, which are configured to cooperate with the pair of through slots; the pair of pull rods are respectively installed on the pair of sliding grooves; the top of the pull rod is provided with a bolt that engages with the sliding groove and passes through the corresponding through slot below, and the bottom is hinged to the rotary actuator.
[0007] Preferably, the rotary actuator includes a connecting seat and an execution unit, and the pull rod is connected to the connecting seat.
[0008] Preferably, the installation direction of the execution unit is horizontal, vertical, or inclined.
[0009] Preferably, the surface of the base frame is provided with a guide mechanism, and the base frame and the rotary actuator are connected through the guide mechanism; the guide mechanism includes a pair of parallel guide units, and the guide unit includes a fixed seat, a slide rail, a slider and a connecting plate; the fixed seat is connected to the base frame, the slide rail is disposed on the fixed seat, the slider is slidably disposed on the slide rail, one side of the connecting plate is connected to the slider and the other side is connected to the rotary actuator.
[0010] Preferably, the base frame is composed of four frame plates, and the frame plates are provided with cutouts for weight reduction.
[0011] Preferably, the CNC machine tool is a CNC machine tool, a six-axis robot, or a digitally controlled motion mechanism.
[0012] Compared with existing technologies, the advantages of this invention are as follows: This invention utilizes a lever balancing mechanism. A balancing support is installed on the base frame, with both ends of the support connected to the rotary actuator via a front tie rod hinge and a counterweight connected to the rear tie rod hinge. The counterweight balances the weight of the rotary actuator and related structural components, ensuring the rotary actuator is loaded with a moderate weight slightly heavier than the counterweight. This allows the rotary actuator to rest on the product in a suspended position for milling, grinding, and polishing. During processing, vibration between the rotary actuator and the workpiece avoids surface defects caused by processing vibration, resulting in excellent surface finish, especially in grinding and polishing hard and brittle materials. This invention, in modular form, can be installed on a CNC machine tool, utilizing the interpolation mechanism of the CNC machine tool to achieve high-precision milling, grinding, and polishing. Attached Figure Description
[0013] Figure 1 This is a side view of the CNC machine tool loading module according to an embodiment of the present invention;
[0014] Figure 2 This is a structural diagram of the CNC machine tool loading module according to an embodiment of the present invention;
[0015] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0016] Figure 4 This is a diagram showing the horizontal installation effect of the execution unit of the CNC machine tool loading module according to an embodiment of the present invention.
[0017] Figure 5 This is an installation effect diagram of the CNC machine tool loading module and the CNC machine tool according to an embodiment of the present invention;
[0018] exist Figures 1 to 5 In the diagram, the correspondence between the component names and the drawing numbers is as follows:
[0019] 1--Base frame, 11--Hollowed out, 2--Middle hinge, 21--Crossbeam plate, 211--Groove, 22--Support plate, 23--First hinge block, 3--Balance bracket, 4--Front tie rod hinge, 41--Hinge base plate, 411--Through groove, 412--Hinge groove, 42--Hinge top plate, 421--Slide groove, 43--Tie rod, 44--Second hinge block, 5--Rear tie rod hinge, 6--Counterweight block, 7--Rotary actuator, 71--Connecting seat, 72--Execution unit, 8--Guide mechanism, 81--Fixed seat, 82--Slide rail, 83--Slider, 84--Connecting plate. Detailed Implementation
[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model.
[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] Please refer to Figures 1 to 5 This utility model provides a loading module for a CNC machine tool, which is installed on a CNC machine tool. It includes a base frame 1, a central hinge 2 and a balance bracket 3 on the top of the base frame 1, and the balance bracket 3 is hinged to the base frame 1 through the central hinge 2. One end of the balance bracket 3 is provided with a front pull rod hinge 4 and the other end is provided with a rear pull rod hinge 43. A counterweight 6 is provided inside the base frame 1, and the counterweight 6 is hinged to the balance bracket 3 through the rear pull rod hinge 43. A rotary actuator 7 that can slide up and down is provided on the surface of the base frame 1, and the rotary actuator 7 is hinged to the balance bracket 3 through the front pull rod hinge 4.
[0024] In the embodiments of this utility model, the CNC machine tool loading module is a module assembly that is installed on a CNC machining center to realize milling, grinding and polishing functions. All processing steps can be completed in one clamping, which can effectively ensure the surface accuracy of the product and the surface roughness of the product, with high efficiency and high yield.
[0025] Specifically, in this embodiment, a central hinge 2 with a hinged support point is provided on the base frame 1, and the central hinge 2 is used to connect the balance bracket 3, allowing the balance bracket 3 to swing left and right at the top of the base frame 1. One end of the balance bracket 3 is connected to the rotary actuator 7 via the front pull rod hinge 4, and then the rotary actuator 7 is constrained by the guide mechanism 8, so that the rotary actuator 7 maintains vertical movement. The other end of the balance bracket 3 is connected to the counterweight 6 via the rear pull rod 43 hinge, which is used to balance the weight of the rotary actuator 7. This embodiment uses the principle of lever balance, using the balance bracket 3 as a lever to float the rotary actuator, realizing light load follow-up processing. In this way, the tool can effectively absorb processing vibration during grinding and polishing on the product, avoiding vibration marks on the product surface and surface scratches caused by overload, resulting in excellent grinding and mirror polishing effects.
[0026] This embodiment can be independently mounted on the Z-axis slide of a CNC machine tool, or on a six-axis robot, or on any non-standard machine to achieve milling, grinding, and polishing. Because of its light-load floating loading, this embodiment revolutionizes traditional mirror polishing processes when applied to CNC machine tools. It uses fixed abrasives, eliminating the need for polishing fluid; only water is required for precision surface grinding and precision or even ultra-precision mirror polishing. It is low-cost, highly efficient, and produces no waste. By adding other devices, this embodiment can achieve integrated milling, grinding, and polishing, completing all processing steps in a single setup, ensuring workpiece machining accuracy. Through its integration with CNC machine tools, the versatility of this module is greatly enhanced, enabling the processing of products made of any material, including those with curved surfaces and internal holes, such as optical glass, ceramics, crystal, stainless steel, magnesium alloys, aluminum alloys, and carbon steel. Processing techniques include milling, grinding, and mirror polishing.
[0027] Preferably, the middle hinge portion 2 includes a crossbeam plate 21, with support plates 22 at both ends of the crossbeam plate 21. One end of the support plate 22 is connected to the crossbeam plate 21, and the other end is connected to the base frame 1. The crossbeam plate 21 has two grooves 211, and a first hinge block 23 is provided in the groove 211. The first hinge block 23 is hinged to the crossbeam plate 21. The top of the first hinge block 23 is connected to the balance bracket 3.
[0028] In this embodiment, the first hinge block 23 is hinged to the crossbeam plate 21, thereby achieving a hinge between the balance bracket 3 and the crossbeam plate 21. Both sides of the crossbeam plate 21 are fixedly connected to the base frame 1 via support plates 22. Through this structural arrangement, the balance bracket 3 and the base frame 1 can be hinged, allowing the balance bracket 3 to function as a lever between the rotary actuator 7 and the counterweight 6. The two first hinge blocks 23 serve as fulcrums in the lever, thereby achieving floating loading between the rotary actuator 7 and the counterweight 6.
[0029] Preferably, the front pull rod hinge 4 and the rear pull rod 43 hinge have the same structure, and the two are symmetrically arranged at both ends of the balance bracket 3.
[0030] Preferably, the front pull rod hinge part 4 includes a hinge base plate 41, a hinge top plate 42, and a pair of pull rods 43; the hinge base plate 41 is connected to the balance bracket 3 and has a pair of through slots 411 and a pair of hinge grooves 412; the bottom of the hinge top plate 42 is provided with a pair of second hinge blocks 44, which are configured to cooperate with the pair of hinge grooves 412, and the second hinge blocks 44 are hinged to the hinge plate; the hinge top plate 42 is provided with a pair of sliding grooves 421, which are configured to cooperate with the pair of through slots 411; the pair of pull rods 43 are respectively installed on the pair of sliding grooves 421; the top of the pull rod 43 is provided with a bolt to engage with the sliding groove 421 and passes through the corresponding through slot 411 below, and the bottom is hinged to the rotary actuator 7. With the above structural configuration, the hinged base plate 41 is used to connect the balance bracket 3, and the second hinge block 44 serves as a hinge node between the hinged base plate 41 and the hinged top plate 42, allowing the hinged top plate 42 to swing on the hinged base plate 41. Tie rods 43 are installed at both ends of the hinged top plate 42, and the tops of the tie rods 43 are bolted into the sliding grooves 421 of the hinged top plate 42. The sliding grooves 421 have sufficient space for the tie rods 43 to slide. A through groove 411 is provided on the hinged base plate 41 below the sliding grooves 421, through which the tie rods 43 can pass and then connect with the rotary actuator 7 below.
[0031] Preferably, the rotary actuator 7 includes a connecting seat 71 and an execution unit 72, and the pull rod is connected to the connecting seat 71.
[0032] Preferably, the execution unit 72 is installed in a horizontal, vertical, or inclined direction. In this embodiment, the execution unit 72 can be fixed at any angle, such as vertical (see reference). Figure 2 ), horizontal (refer to) Figure 5 () or tilted.
[0033] Preferably, the surface of the base frame 1 is provided with a guide mechanism 8, and the base frame 1 and the rotary actuator 7 are connected through the guide mechanism 8. The guide mechanism 8 includes a pair of parallel guide units, each guide unit including a fixed seat 81, a slide rail 82, a slider 83, and a connecting plate 84. The fixed seat 81 is connected to the base frame 1, the slide rail 82 is disposed on the fixed seat 81, the slider 83 is slidably disposed on the slide rail 82, one side of the connecting plate 84 is connected to the slider 83, and the other side is connected to the rotary actuator 7. To allow the rotary actuator 7 to slide more smoothly, this embodiment provides a guide mechanism 8 between the base frame 1 and the rotary actuator 7. The guide mechanism 8 includes a slide rail 82 and a slider 83. Through the cooperation between the slide rail 82 and the slider 83, the rotary actuator 7 mounted on the connecting plate 84 can slide up and down in the slide rail 82. The guide mechanism 8 provides a precise linear motion trajectory for the rotary actuator 7, ensuring that the rotary actuator 7 maintains a high degree of accuracy and stability during movement.
[0034] Preferably, the base frame 1 is formed by four frame plates, and the frame plates are provided with cutouts 11 for weight reduction. In this embodiment, the base frame 1 is a rectangular frame structure formed by four frame plates, and the cutouts 11 are provided on the frame plates to reduce the weight of the base frame 1, thereby achieving effective control of the weight of the entire module and facilitating precise movement.
[0035] Preferably, the CNC machine tool is a CNC machine tool, a six-axis robot, or a digitally controlled motion mechanism. This embodiment, as a module, can be easily installed on a CNC machine tool, and can also be installed on a six-axis robot, any other digitally controlled motion mechanism, and non-standard equipment in various industries to achieve integrated milling, grinding, and polishing processing, completing all machining processes in a single setup and ensuring workpiece machining accuracy.
[0036] Compared with existing technologies, the advantages of this invention are as follows: This invention utilizes a lever balancing mechanism. A balancing support is installed on the base frame, with both ends of the support connected to the rotary actuator via a front tie rod hinge and a counterweight connected to the rear tie rod hinge. The counterweight balances the weight of the rotary actuator and related structural components, ensuring the rotary actuator is loaded with a moderate weight slightly heavier than the counterweight. This allows the rotary actuator to rest on the product in a suspended position for milling, grinding, and polishing. During processing, vibration between the rotary actuator and the workpiece avoids surface defects caused by processing vibration, resulting in excellent surface finish, especially in grinding and polishing hard and brittle materials. This invention, in modular form, can be installed on a CNC machine tool, utilizing the interpolation mechanism of the CNC machine tool to achieve high-precision milling, grinding, and polishing.
[0037] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A loading module for a numerical control machine, to be installed on a numerical control machine, characterized in that, The base frame (1) is provided with a middle hinge (2) and a balance support (3) at the top, the balance support is hingedly connected with the base frame through the middle hinge, one end of the balance support is provided with a front pull rod hinge (4), and the other end is provided with a rear pull rod hinge (5); a counterweight (6) is arranged in the base frame, and the counterweight is hingedly connected with the balance support through the rear pull rod hinge; a rotary actuator (7) that can slide up and down is arranged on the surface of the base frame, and the rotary actuator is hingedly connected with the balance support through the front pull rod hinge.
2. The loading module for a CNC machine according to claim 1, characterized in that, The middle hinge comprises a cross beam plate (21), two ends of the cross beam plate are respectively provided with support plates (22), one end of the support plate is connected with the cross beam plate, and the other end is connected with the base frame; two grooves (211) are arranged on the cross beam plate, a first hinge block (23) is arranged in the groove, and the first hinge block is hingedly connected with the cross beam plate; the top of the first hinge block is connected with the balance support.
3. The CNC machine loading module according to claim 1, characterized in that, The front pull rod hinge and the rear pull rod hinge are the same in structure and are symmetrically arranged at the two ends of the balance support.
4. The loading module for a CNC machine according to claim 3, characterized in that, The front pull rod hinge comprises a hinge bottom plate (41), a hinge top plate (42) and a pair of pull rods (43); the hinge bottom plate is connected with the balance support and is provided with a pair of through grooves (411) and a pair of hinge grooves (412); a pair of second hinge blocks (44) are arranged at the bottom of the hinge top plate, the pair of second hinge blocks are arranged in cooperation with the pair of hinge grooves, the second hinge blocks are hingedly connected with the hinge plate; a pair of sliding grooves (421) are arranged on the hinge top plate, the pair of sliding grooves are arranged in cooperation with the pair of through grooves; the pair of pull rods are respectively installed on the pair of sliding grooves; the top of the pull rod is provided with a bolt that is clamped with the sliding groove and passes through the corresponding through groove below, and the bottom is hingedly connected with the rotary actuator.
5. The loading module for a CNC machine according to claim 4, characterized in that, The rotary actuator comprises a connecting seat (71) and an execution unit (72), and the pull rod is connected with the connecting seat.
6. The loading module for a CNC machine according to claim 5, characterized in that, The installation direction of the execution unit is horizontal reverse, vertical or inclined.
7. The CNC machine tool loading module according to claim 1, characterized in that, The surface of the base frame is provided with a guide mechanism (8), and the base frame and the rotary actuator are connected through the guide mechanism; the guide mechanism comprises a pair of parallel guide units, and each guide unit comprises a fixed seat (81), a sliding rail (82), a sliding block (83) and a connecting plate (84); the fixed seat is connected with the base frame, the sliding rail is arranged on the fixed seat, the sliding block is slidably arranged on the sliding rail, one side of the connecting plate is connected with the sliding block, and the other side is connected with the rotary actuator.
8. The CNC machine tool loading module according to claim 1, characterized in that, The base frame is surrounded by four frame plates, and the frame plates are provided with hollow parts (11) for weight reduction.
9. The loading module for a CNC machine according to any one of claims 1 to 8, characterized in that, The numerical control machine tool is a CNC machine tool, a six-axis manipulator or a digital control motion mechanism.