Measuring machine Z-axis balance system with external balance component

Abstract

The utility model provides a measuring machine Z-axis balancing system with an external balancing part. The measuring machine Z-axis balancing system comprises a balancing frame body; moving the Z axis; the balance driving device is assembled on the balance frame body; the rotating shaft body is in transmission connection with the balance driving device; the driving winding piece is connected to the rotating shaft body; the driving connecting piece is wound on the driving winding piece and can be wound on the driving winding piece or unfolded relative to the driving winding piece when the rotating shaft body rotates, and the free end of the driving connecting piece is hinged to the movement Z shaft; a balancing member; the balance winding mechanism comprises a balance winding piece which is connected to the rotating shaft body; and the balance connecting piece is wound on the balance winding piece and can be wound on the horizontal winding piece or unfolded relative to the balance winding piece when the rotating shaft body rotates, and the free end of the balance connecting piece is connected with the balance component. And the shaking generated by the air cylinder can directly influence the motion precision and stability of the Z axis.

Description

Technical Field

[0001] The utility model belongs to the technical field of measuring machines, in particular to a measuring machine Z-axis transmission system with an external balancing component and a measuring machine with the Z-axis transmission system. Background Art

[0002] When the Z axis of the measuring machine moves up and down, in order to provide a smoother up and down motion and reduce the driving force of the up and down motion drive motor, it is usually necessary to set up a balancing system to balance the gravity of the Z axis.

[0003] There are three most commonly used balancing mechanisms at present, one is pneumatic balancing, another is weight balancing, and the other is balancing by using a motor with a high reduction ratio reducer. Among them, pneumatic balancing is the most common, that is, the weight of the Z axis is balanced by the buoyancy generated by the precision balancing components.

[0004] In existing pneumatic balancing mechanisms, the cylinder is usually installed inside the hollow Z-axis. During the movement of the Z-axis, due to the cantilever connection structure of the cylinder, the shaking during the movement will directly affect the movement accuracy and stability of the Z-axis, and the space required for the cables inside the Z-axis is limited. Utility Model Content

[0005] The utility model provides a measuring machine Z-axis balancing system with an external balancing component and a measuring machine, which can solve the problem in the prior art that the shaking of the cylinder in the Z-axis balancing system with a built-in cylinder directly affects the motion accuracy and stability of the Z-axis.

[0006] In order to solve the above technical problems, the technical solution adopted in the utility model is:

[0007] A Z-axis balancing system for a measuring machine with an external balancing component, comprising:

[0008] Balance frame;

[0009] Movement Z axis;

[0010] and a balancing drive device, mounted on the balancing frame;

[0011] A rotating shaft body is drivingly connected to the balancing drive device and can rotate under the drive of the balancing drive device;

[0012] The driving winding mechanism comprises:

[0013] A driving winding member connected to the rotating shaft;

[0014] and a driving connecting member wound on the driving winding member, which can be wound onto the driving winding member or unwound relative to the driving winding member when the rotating shaft body rotates, and whose free end is hinged to the moving Z axis;

[0015] A balancing component, which includes a balancing connector;

[0016] The balanced winding mechanism comprises: a balanced winding member connected to the rotating shaft;

[0017] And a balancing connecting piece wound on the balancing winding piece, which can be wound onto the horizontal winding piece or unfolded relative to the balancing winding piece when the rotating shaft body rotates, and its free end is hinged to the balancing connecting piece.

[0018] In some embodiments of the present application, the balancing winding mechanism is provided with two groups, which are arranged in parallel, and the two groups of balancing winding mechanisms are connected to the motion Z axis through a first balancing hinge mechanism.

[0019] In some embodiments of the present application, the balanced winding mechanism further comprises:

[0020] The balance guide component is rotatably connected to the balance frame body, and the balance connecting piece is also arranged around the balance guide component.

[0021] In some embodiments of the present application, the first balancing hinge mechanism includes:

[0022] Two first connecting members are provided and are respectively fixedly connected to the free ends of the two balancing winding members;

[0023] A first hinge seat, both ends of which are hinged to two first connecting members respectively;

[0024] The second hinge seat is clamped on the first hinge seat from bottom to top and is hinged with the middle position of the first hinge seat. The second hinge seat is connected with the balancing component rod.

[0025] In some embodiments of the present application, a swing limiting structure that cooperates with each other to limit the swing of the first hinge seat is provided between the second hinge seat and the first hinge seat, and the swing limiting structure includes:

[0026] A limit slot with an open top formed on the first hinge seat;

[0027] and a clamping protrusion formed on the second hinge seat, wherein the clamping protrusion is clamped into the limit clamping groove from the top opening;

[0028] A swing gap is formed between the clamping protrusion and the two side walls of the limiting clamping slot;

[0029] When the second hinge seat swings relative to the first hinge seat, the clamping protrusion swings relative to the limiting clamping slot and is limited by the side walls on both sides of the limiting clamping slot.

[0030] In some embodiments of the present application, it further includes: a fixing seat, which is assembled and fixed on the balancing frame, and the balancing component is installed on the fixing seat;

[0031] The fixing seat is formed with: a vertically arranged sliding guide track;

[0032] A sliding component is formed on the second hinge seat, and the sliding component is slidably connected to the sliding guide rail.

[0033] In some embodiments of the present application, the drive winding mechanism is provided with two groups, which are symmetrically arranged on both sides of the balance winding mechanism, and the two groups of the drive winding mechanism are connected to the balance connecting member through a second balance hinge mechanism.

[0034] In some embodiments of the present application, the drive winding mechanism also includes a drive guide component, and the drive connecting member is wound around the drive guide component.

[0035] In some embodiments of the present application, it also includes:

[0036] An assembly seat is connected and fixed to the moving Z axis;

[0037] The second balancing hinge mechanism comprises:

[0038] Two second connecting members are provided and are respectively connected to the free ends of the driving connecting member;

[0039] A first connecting seat, both ends of which are respectively hinged to the two second connecting members;

[0040] A second connecting seat, hinged to the first connecting seat;

[0041] A universal rotating component has one end connected to the second connecting seat and one end connected to the assembly seat body.

[0042] In some embodiments of the present application, it also includes:

[0043] The transmission device is in transmission connection with the balancing drive device and is used for transmitting the power of the balancing drive component to the driving winding mechanism and the balancing winding mechanism.

[0044] A Z-axis balancing system for a measuring machine with an external balancing component, comprising:

[0045] Balance frame;

[0046] Movement Z axis;

[0047] The Z-axis balancing mechanism comprises: a connecting component, one end of which is connected to the balancing frame, and the other end of which is connected to the moving Z-axis;

[0048] A pulley component, pressed on the connecting component and capable of sliding along the connecting component;

[0049] The power component is connected to the pulley component and is used for applying pressure to the pulley component to make it press the connecting component to move up and down so as to balance the movement Z axis.

[0050] Compared with the prior art, the utility model has the following advantages and positive effects:

[0051] The Z-axis transmission system of the external balancing component of the measuring machine described in the utility model arranges the balancing system on the balancing frame outside the Z-axis, rather than building the balancing system inside the moving Z-axis, thereby reducing the moving mass of the Z-axis, eliminating the influence of the built-in vibration of the balancing cylinder on the Z-axis accuracy, and freeing up the space required for the cables inside the Z-axis. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0053] Figure 1 It is a three-dimensional structural diagram of a measuring machine with a Z-axis balancing system of the measuring machine having an external balancing component in an embodiment of the utility model;

[0054] Figure 2 The three-dimensional structure of the Z-axis balancing system of the measuring machine with an external balancing component in the embodiment of the utility model Figure 1 ;

[0055] Figure 3 for Figure 2 A local enlarged view of point A;

[0056] Figure 4 The three-dimensional structure of the Z-axis balancing system of the measuring machine with an external balancing component in the embodiment of the utility model Figure 2 ;

[0057] Figure 5 for Figure 4 A partial enlarged view of point B;

[0058] Figure 6 It is a three-dimensional structural diagram of the second balanced hinge mechanism in the embodiment of the utility model;

[0059] Figure 7 This is a structural diagram of the cooperation between the second balancing hinge mechanism and the driving connecting member in the embodiment of the utility model;

[0060] Figure 8 for Figure 7 A partial enlarged view of point C;

[0061] Fig. 9 The structure diagram of the connection between the balancing component and the first balancing hinge mechanism in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0062] Fig.10 for Fig. 9 A partial enlarged view of point D;

[0063] Fig.11 The structure diagram of the connection between the balancing component and the first balancing hinge mechanism in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0064] Fig.12 for Fig.11 A local enlarged view of point E;

[0065] Fig.13 This is a structural diagram of another implementation of the Z-axis balancing system of a measuring machine with an external balancing component in an embodiment of the utility model.

[0066] Reference numerals:

[0067] 100, balancing frame; 200, moving Z axis; 210, vertical guide rail; 220, cross beam; 230, machine body; 310, balancing drive device; 320, transmission device; 400, rotating shaft; 500, driving winding mechanism; 510, driving winding member; 520, driving connecting member; 530, driving guide member; 600, balancing winding mechanism; 610, balancing member; 611, balancing cylinder rod; 620, balancing winding member; 630, balancing connecting member; 640, balancing guide member; 650, fixing seat; 651, sliding guide track; 700, first balancing hinge Chain mechanism; 710, first connecting member; 720, first hinge seat; 721, limiting slot; 730, second hinge seat; 731, clamping protrusion; 732, sliding member; 733, first clamping arm; 734, second clamping arm; 800, second balancing hinge mechanism; 810, assembly seat; 811, recessed portion; 820, second connecting member; 830, first connecting seat; 840, second connecting seat; 850, universal rotating member; 910, connecting member; 920, pulley member; 930, power member; 940, slider; 950, slide rail; 960, guide wheel body. DETAILED DESCRIPTION

[0068] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0070] The utility model provides an embodiment of a measuring machine Z-axis balancing system with an external balancing component 610, comprising:

[0071] The balancing frame 100 constitutes the supporting frame of the entire measuring machine Z-axis balancing system, and plays the role of supporting and fixing corresponding components on the balancing system.

[0072] When connected, the balancing frame 100 is connected to the crossbeam 220 of the measuring machine through a slip ring to achieve movement along the lateral X direction;

[0073] The crossbeam 220 is correspondingly slidably connected to the vertical guide rail 210 on the body 230 of the measuring machine to enable the balancing frame 100 to move in the Y direction.

[0074] The moving Z axis 200 can be used to drive the corresponding measuring components to move in the Z direction, and is arranged at one side of the balancing frame 100 .

[0075] and a balancing driving device 310, mounted on the balancing frame 100;

[0076] The rotating shaft 400 is drivingly connected to the balancing driving device 310 and can rotate when driven by the balancing driving device 310 .

[0077] In some embodiments of the present application, the horizontal driving device is a balancing driving motor.

[0078] The rotating shaft 400 is rotatably connected to the balancing frame 100 through a mounting frame. When arranged, the rotating shaft 400 is arranged transversely along the width direction of the balancing frame 100 and assembled at the top position of the horizontal frame.

[0079] In some embodiments, in order to achieve a transmission connection between the balancing drive device 310 and the rotating shaft body 400 , a transmission device 320 is connected between the balancing drive device 310 and the rotating shaft body 400 .

[0080] In some embodiments of the present application, the transmission device 320 is a secondary pulley transmission device 320, which includes: a primary pulley mechanism and a secondary pulley mechanism connected to the primary pulley mechanism, the output shaft of the primary pulley mechanism and the input shaft of the secondary pulley are coaxial, so as to transmit power to the secondary pulley mechanism through the primary pulley mechanism.

[0081] The output pulley of the secondary pulley mechanism is connected to the rotating shaft 400 to drive the rotating shaft 400 to rotate.

[0082] The transmission device 320 may also be a single-stage or multi-stage pulley reduction transmission device 320 structure.

[0083] The driving winding mechanism 500 comprises:

[0084] A driving winding member 510 is connected to the rotating shaft 400;

[0085] and a driving connecting member 520 wound on the driving winding member 510, which can be wound onto the driving winding member 510 or unwound relative to the driving winding member 510 when the rotating shaft 400 rotates, and whose free end is hinged to the moving Z axis 200;

[0086] In some embodiments of the present application, the driving winding member 510 is a driving winding wheel, which is mounted on the rotating shaft 400 and can be driven to rotate when the rotating shaft 400 rotates.

[0087] The drive connection member 520 is a drive connection steel belt, which is wound on the drive winding wheel and can be unwound or wound relative to it.

[0088] During connection, one end of the connecting steel belt is fixedly connected to the driving winding wheel, and the other end is connected to the moving Z axis 200 .

[0089] When the connecting steel belt is driven to rotate by the rotating shaft 400, the connecting steel belt can be wound onto the driving winding wheel or unwound relative to the driving winding wheel to drive the moving Z axis 200 to move up and down.

[0090] In some embodiments of the present application, the driving connection member 520 is a flat belt or a connecting wire.

[0091] Balance component 610;

[0092] The balanced winding mechanism 600 includes: a balanced winding member 620 connected to the rotating shaft 400;

[0093] The balancing connecting member 630 wound on the balancing winding member 620 can be wound onto the horizontal winding member or unfolded relative to the balancing winding member 620 when the rotating shaft 400 rotates, and its free end is connected to the balancing component 610 .

[0094] The balancing winding member 620 is a balancing winding wheel, which is mounted on the rotating shaft 400 and arranged coaxially with the driving winding wheel.

[0095] One end of the balancing connector 630 is fixedly connected to the balancing winding member 620 , and the other end is connected to the balancing component 610 .

[0096] When the rotating shaft 400 rotates, the driving winding member 510 is synchronously driven to rotate, so that the balancing connecting member 630 wound thereon is unfolded or wound, so as to pull the balancing component 610 to move, and the gravity of the moving Z axis 200 is balanced through the balancing component 610.

[0097] In some embodiments of the present application, the balancing component 610 is a balancing cylinder, which includes a cylinder connecting piece, and the balancing connecting piece 630 is hinged to the cylinder connecting piece.

[0098] When the drive winding member 510 rotates, it will drive the drive connecting member 520 to wind or release on the drive winding member 510, and then drive one end of the drive connecting member 520 to pull the cylinder connecting member up and down. The cylinder connecting member is a balancing cylinder rod 611, and the balancing cylinder adjusts the pressure until the pulling force is balanced with the gravity of the moving Z axis 200.

[0099] In some embodiments of the present application, the balancing component 610 is a balancing weight block, which is connected to the balancing connector 630 and can also balance the gravity of the Z-axis 200.

[0100] In some embodiments of the present application, the balancing connection member 630 is a balancing connection steel belt, a balancing connection belt or a balancing connection steel wire.

[0101] When the moving Z-axis 200 moves, the balancing drive motor drives the rotating shaft 400 to rotate through the transmission device 320, thereby driving the driving connection member 520 to wind and release on the driving winding member 510, and the driving winding member 510 pulls the moving Z-axis 200. Since the balancing winding member 620 is coaxially arranged with the driving winding member 510, when the rotating shaft 400 rotates, the balancing connection member 630 will be driven to realize corresponding release and winding on the balancing winding member 620 at the same time. The balancing connection member 630 drives the balancing component 610 to move, and the gravity balance of the moving Z-axis 200 is realized through the balancing component 610.

[0102] In some embodiments of the present application, the diameter of the driving winding member 510 is multiple times the diameter of the balancing winding member 620, which may be two times, three times, or four times, etc. When the Z axis moves up and down, the movement stroke of the balancing member 610 is close to half of the movement stroke of the moving Z axis 200, so the balancing member 610 can be compressed in the length direction to reduce its occupied space.

[0103] In some embodiments of the present application, the balancing winding mechanism 600 is provided with two groups, which are arranged in parallel, and the two groups of the balancing winding mechanism 600 are connected to the motion Z axis 200 through a first balancing hinge mechanism 700 .

[0104] The moving Z axis 200 is connected to the driving connecting member 520 via the first balancing hinge mechanism 700, thereby ensuring that the symmetrically distributed driving connecting members 520 are subjected to uniform forces.

[0105] The balanced winding structure is provided with two groups, which can play a role of safety protection when the balanced connector 630 of one group is accidentally broken.

[0106] In some embodiments of the present application, the balanced winding mechanism 600 further includes:

[0107] The balance guide component 640 is rotatably connected to the balance frame 100, and the balance connecting member 630 is also arranged around the balance guide component. The balance connecting member 630 can ensure that the pulling direction thereof coincides with the moving direction of the moving Z axis 200 through the guiding effect of the balance guide component 640.

[0108] In some embodiments of the present application, the first balancing hinge mechanism 700 includes:

[0109] Two first connecting members 710 are provided, and are respectively fixedly connected to the free ends of the two balancing winding members 620;

[0110] A first hinge seat 720, two ends of which are respectively hinged to the two first connecting members 710;

[0111] The second hinge seat 730 is clamped on the first hinge seat 720 from bottom to top and is hinged to the middle position of the first hinge seat 720 . The second hinge seat is connected to the balancing component 610 .

[0112] The first connecting member 710 is formed by connecting two first connecting pieces. When fixed, the balancing winding member 620 is inserted between the two first connecting pieces and is fixed by screws to achieve connection between the balancing winding member 620 and the balancing winding member 620 .

[0113] In some embodiments of the present application, the drive connector 520 includes a vertical segment arranged vertically;

[0114] The first articulated seat and the two first connecting members 710 are hinged through a first connecting axis, and the first connecting axis is arranged horizontally and perpendicular to the vertical section, so that the two first connecting members 710 and the vertical section can swing left and right relative to the first articulated seat in the vertical plane where the vertical section is located, thereby avoiding interference with the up and down movement of the moving Z axis 200 due to a rigid connection.

[0115] The second articulated seat is articulated with the first articulated seat via a second connecting shaft, which is arranged parallel to the first connecting shaft and perpendicular to the vertical section, so that the first articulated seat drives the two driving connectors 520 to swing left and right in a vertical plane relative to the second articulated seat.

[0116] In some embodiments of the present application, a swing limiting structure is provided between the second hinge seat and the first hinge seat to cooperate with each other to limit the swing of the first hinge seat 720, and the swing limiting structure includes:

[0117] A limit slot 721 with an open top formed on the first hinge seat;

[0118] and a clamping protrusion 731 formed on the second hinge seat, wherein the clamping protrusion 731 is clamped into the limiting clamping groove 721 from the top opening;

[0119] A swing gap is formed between the clamping protrusion 731 and the two side walls of the limiting clamping groove 721;

[0120] When the second hinge seat swings relative to the first hinge seat, the locking protrusion 731 swings relative to the limiting locking groove 721 and is limited by the side walls on both sides of the limiting locking groove 721.

[0121] In some embodiments of the present application, the second articulated seat includes a seat body;

[0122] and a first clamping arm 733 formed on the top end of the seat body;

[0123] and a second clamping arm 734 formed on the seat body, the second clamping arm 734 being arranged opposite to the first clamping arm 733, and the second clamping arm 734 being greater in height than the first clamping arm 733;

[0124] The second clamping arm 734 is formed with the clamping protrusion 731;

[0125] A clamping notch with a top opening is formed between the first clamping arm 733 , the second clamping arm 734 and the seat body, and the bottom of the first hinged seat is clamped in the clamping notch.

[0126] The limiting clamping groove 721 is formed at the top position of the first hinge seat, and the clamping protrusion 731 is arranged perpendicular to the second clamping arm 734 and arranged at the upper part of the second clamping arm 734;

[0127] The second connecting shaft passes through the first clamping arm 733, the lower area of ​​the first hinge seat and the second clamping arm 734 to hinge the first hinge seat and the second hinge seat.

[0128] When the first hinge seat is forced to swing, the two side walls of the limiting clamping groove 721 limit the clamping protrusion 731 to achieve the limitation of the swing position of the first hinge seat.

[0129] The swing gap formed between the two side walls of the clamping protrusion 731 and the limiting clamping groove 721 can realize the first hinge seat to swing within a certain swing angle range, so that the first hinge seat and the driving connecting member 520 can move within a certain range, ensuring its balancing effect on the moving Z axis 200.

[0130] Limiting the limiting slot 721 by its two side walls can prevent the first hinge seat from swinging too much, thereby affecting the balancing effect of the driving connector 520 connected thereto.

[0131] In some embodiments of the present application, the device further includes: a fixing seat 650, which is assembled and fixed on the balancing frame 100, and the balancing component 610 is installed on the fixing seat 650;

[0132] The fixing seat 650 is formed with: a vertically arranged sliding guide rail 651;

[0133] A sliding component 732 is formed on the second hinge seat, and the sliding component 732 is slidably connected to the sliding guide rail 651 .

[0134] In some embodiments of the present application, a roller is provided on the second articulated seat, a roller track is formed on the fixed seat 650, and the second articulated seat is arranged in the roller track by rolling of the roller.

[0135] In some embodiments of the present application, the driving winding mechanism 500 is provided with two groups, which are symmetrically arranged on both sides of the balancing winding mechanism 600, and the two groups of the driving winding mechanism 500 are connected to the driving connecting member 520 through a second balancing hinge mechanism 800.

[0136] The two groups of driving winding mechanisms 500 are connected to the driving connecting members 520 via the second balancing hinge mechanism 800, so that the symmetrically distributed driving connecting members 520 are subjected to uniform forces.

[0137] The balancing winding mechanism 600 is arranged in the middle position, and two groups are provided, arranged side by side. The two groups of driving winding mechanisms 500 are symmetrically arranged on both sides of the balancing winding mechanism 600, so that the balancing winding mechanism 600 and the driving winding mechanism 500 are compactly arranged on the balancing frame 100 to reduce the occupied space.

[0138] The use of an even number of driving connectors 520 and balancing connectors 630 can serve as a safety protection when one of them breaks accidentally.

[0139] In some embodiments of the present application, the drive winding mechanism 500 further includes a drive guide component 530, and the drive connecting member 520 is wound around the drive guide component.

[0140] The driving connecting member 520 ensures that the pulling direction thereof is consistent with the moving direction of the balancing cylinder by driving the guiding member 530 .

[0141] The driving guide component 530 may be a driving guide wheel or a friction plate.

[0142] In some embodiments of the present application, it also includes: an assembly base 810, which is connected and fixed to the moving Z axis 200; a recessed portion 811 is formed inside the assembly base 810, and folded portions are formed on both sides thereof.

[0143] During connection, the assembly seat 810 is assembled on the moving Z axis 200 and is locked and fixed by a locking screw.

[0144] The second balancing hinge mechanism 800 includes:

[0145] Two second connecting members 820 are provided, and are respectively connected to the free ends of the driving connecting member 520;

[0146] The second connecting member 820 is clamped at the free end of the driving connecting member 520 and is connected and fixed to the driving connecting member 520 by screws. The driving connecting member 520 includes a vertically arranged vertical portion;

[0147] The first connecting seat 830 has two ends hingedly connected to the two second connecting members 820 respectively;

[0148] The first connecting seat 830 is hinged to the two second connecting members 820 via a first hinge axis, the first hinge axis is arranged perpendicular to the vertical part, and the two second connecting members 820 are hinged to the first connecting seat 830 so that the driving connecting member 520 can swing left and right within the plane where the vertical part is located.

[0149] The second connecting seat 840 is hinged to the first connecting seat 830 ; the second connecting seat 840 is hinged to the first connecting seat 830 via a second hinge axis, so that the first connecting seat 830 can swing left and right relative to the second connecting seat 840 .

[0150] The second hinge axis is arranged parallel to the first hinge axis.

[0151] The first connecting seat 830 is arranged in the recessed portion 811 of the assembly seat body 810 . When the first connecting seat 830 swings relative to the second connecting seat 840 , it can be limited by the side wall of the recessed portion 811 to prevent the swinging range from being too large.

[0152] The universal rotating component 850 has one end connected to the second connecting seat 840 and another end connected to the assembly seat body 810 .

[0153] In some embodiments of the present application, the universal rotating component 850 is a joint bearing, which allows the second connecting seat 840 to move relative to the first connecting seat 830 .

[0154] In some embodiments of the present application, a Z-axis balancing system of a measuring machine with an external balancing component 610 is provided, comprising:

[0155] A balancing frame 100;

[0156] Movement Z axis 200;

[0157] The Z-axis balancing mechanism includes: a connecting component 910, one end of which is connected to the balancing frame 100, and the other end of which is connected to the moving Z-axis 200;

[0158] The pulley member 920 is pressed on the connecting member 910 and can slide along the connecting member 910;

[0159] The pulley member 920 is a movable pulley, which can be used to apply a pulling force to the connecting member 910 .

[0160] The power component 930 is connected to the pulley component 920 to apply a pulling force to the pulley component 920 to press the connecting component 910 to move up and down to balance the moving Z axis 200.

[0161] In some embodiments of the present application, the power component 930 is a power cylinder, which is connected to the sliding component 732 through a piston rod, and balances the gravity of the Z axis by applying a pulling force to the sliding component 732.

[0162] In some embodiments of the present application, the connecting component 910 is a connecting steel belt or steel wire.

[0163] In order to support and guide the sliding of the pulley component 920, a slider 940 is connected to the pulley component 920, and a slide rail 950 is correspondingly provided on the balancing frame body 100 to ensure that the pulley component 920 slides up and down along the vertical direction.

[0164] In order to guide the connecting steel belt, a guide wheel body 960 is further provided on the balance frame body 100 to achieve guidance.

[0165] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A Z-axis balancing system for a measuring machine with an external balancing component, characterized in that: include: Balance frame; Movement Z axis; and a balancing drive device, mounted on the balancing frame; A rotating shaft body is drivingly connected to the balancing drive device and can rotate under the drive of the balancing drive device; The driving winding mechanism comprises: A driving winding member connected to the rotating shaft; and a driving connecting member wound on the driving winding member, which can be wound onto the driving winding member or unwound relative to the driving winding member when the rotating shaft body rotates, and whose free end is hinged to the moving Z axis; A balanced winding mechanism comprises: a balancing component; A balancing winding member connected to the rotating shaft; And a balancing connecting piece wound on the balancing winding piece, which can be wound onto the balancing winding piece or unfolded relative to the balancing winding piece when the rotating shaft body rotates, and a free end of which is connected to the balancing component.

2. The Z-axis balancing system of a measuring machine with an external balancing component according to claim 1, characterized in that: The balancing winding mechanisms are provided in two groups and arranged in parallel. The two groups of balancing winding mechanisms are connected to the motion Z axis via a first balancing hinge mechanism.

3. The Z-axis balancing system of a measuring machine with an external balancing component according to claim 2, characterized in that: The first balancing hinge mechanism comprises: Two first connecting members are provided and are respectively fixedly connected to the free ends of the two balancing winding members; A first hinge seat, both ends of which are hinged to two first connecting members respectively; The second hinge seat is clamped on the first hinge seat from bottom to top and is hinged with the middle position of the first hinge seat. The second hinge seat is connected with the balancing component.

4. The Z-axis balancing system of a measuring machine with an external balancing component according to claim 3, characterized in that: A swing limiting structure is provided between the second hinge seat and the first hinge seat, which cooperates with each other to limit the swing of the first hinge seat, and the swing limiting structure includes: A limit slot with an open top formed on the first hinge seat; and a clamping protrusion formed on the second hinge seat, wherein the clamping protrusion is clamped into the limit clamping groove from the top opening; A swing gap is formed between the clamping protrusion and the two side walls of the limiting clamping slot; When the second hinge seat swings relative to the first hinge seat, the clamping protrusion swings relative to the limiting clamping slot and is limited by the side walls on both sides of the limiting clamping slot.

5. The Z-axis balancing system of a measuring machine with an external balancing component according to claim 3, characterized in that: It also includes: a fixing seat, which is assembled and fixed on the balancing frame; The balancing component is a balancing cylinder, which is assembled on the fixed seat and includes a balancing cylinder rod, which is movably connected to the second hinged seat; The fixing seat is formed with: a vertically arranged sliding guide track; A sliding component is formed on the second hinge seat, and the sliding component is slidably connected to the sliding guide rail.

6. The Z-axis balancing system of a measuring machine with an external balancing component according to claim 1, characterized in that: The drive winding mechanism is provided with two groups, which are symmetrically arranged on both sides of the balance winding mechanism. The two groups of the drive winding mechanism are connected to the drive connecting member through a second balance hinge mechanism.

7. The Z-axis balancing system of a measuring machine with an external balancing component according to claim 3, characterized in that: The drive winding mechanism also includes a drive guide component, and the drive connecting member is wound around the drive guide component.

8. The Z-axis balancing system of a measuring machine with an external balancing component according to claim 6, characterized in that: It also includes: an assembly seat body, connected and fixed to the motion Z axis; The second balanced hinge mechanism comprises: Two second connecting members are provided and are respectively connected to the free ends of the driving connecting member; A first connecting seat, both ends of which are respectively hinged to the two second connecting members; A second connecting seat, hinged to the first connecting seat; A universal rotating component has one end connected to the second connecting seat and one end connected to the assembly seat body.

9. The Z-axis balancing system of a measuring machine with an external balancing component according to claim 3, characterized in that: It also includes: a transmission device, which is in transmission connection with the balancing drive device and is used to transmit the power of the balancing drive component to the driving winding mechanism and the balancing winding mechanism.

10. A Z-axis balancing system for a measuring machine with an external balancing component, characterized in that: Balance frame; Movement Z axis; The Z-axis balancing mechanism comprises: a connecting component, one end of which is connected to the balancing frame, and the other end of which is connected to the moving Z-axis; A pulley component, pressed on the connecting component and capable of sliding along the connecting component; The power component is connected to the pulley component and is used to apply a pulling force to the pulley component so that the pulley component presses the connecting component to move up and down to balance the moving Z axis.

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