Z-axis outer cover of three-coordinate measuring machine and three-coordinate measuring machine

Abstract

The utility model relates to a Z-axis outer cover of a three-coordinate measuring machine and the three-coordinate measuring machine, and the Z-axis outer cover comprises a left fixed side cover which is detachably installed at the left side of a carriage at the lower part of a Z-axis structure; a right fixed side cover detachably mounted to the right side of the carriage; the left mounting side cover is detachably mounted on the left side, away from the Z axis, of the left fixed side cover; the right mounting side cover is detachably mounted on the right side, away from the Z axis, of the right fixed side cover; the front cover is located on the front side of the Z-axis structure, and the lower end of the front cover is detachably installed on the left fixed side cover and the right fixed side cover; the rear cover is arranged opposite to the front cover, and the lower end of the rear cover is detachably mounted to the left fixed side cover and the right fixed side cover; and the hanging part is installed at the top end of the Z-axis structure upper balance support, and the top ends of the front cover and the rear cover are hung on the hanging part. The Z-axis outer cover is designed in a split mode, and the disassembly difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of measurement, in particular to a Z-axis outer cover of a three-coordinate measuring machine and the three-coordinate measuring machine. Background Art

[0002] The Z-axis structure on the coordinate measuring machine is used to install the stylus. Therefore, the stable operation of the Z-axis structure will affect the measurement accuracy of the stylus. The Z-axis structure generally includes a lower slide and an upper balance bracket for maintaining the balance of the Z-axis structure. The stylus is installed on the slide, and the slide is slidably connected to the Y-axis structure through a slider. The balance bracket is connected to the slide. Therefore, in order to protect the Z-axis structure, an outer cover is provided on its outer side.

[0003] At present, most of the three-dimensional coordinate measuring machines on the market generally have an integrated design for the outer cover of the Z-axis structure, which is rigidly connected to the Z-axis structure by screws.

[0004] This type of integrated, rigidly connected cover has the following disadvantages: (1) When inspecting and repairing the Z-axis, the Z-axis cover needs to be removed. Since the cover is an integrated design, the entire cover needs to be removed no matter which part of the Z-axis is being repaired, which is rather cumbersome. (2) The Z-axis cover is rigidly connected. If it is installed too tightly, it may cause uneven internal stress and affect the normal operation of the Z-axis. If it is installed too loosely, it may cause structural instability. In addition, the rigidly connected cover may cause mechanical damage to the Z-axis structure when it is removed. (3) Since the cover is rigidly connected to the Z-axis structure, even if the cover produces a slight vibration, it will be transmitted to the Z-axis structure, affecting both, affecting the stability of the machine mechanism and the measurement accuracy. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a Z-axis outer cover of a three-coordinate measuring machine and a three-coordinate measuring machine. The Z-axis outer cover is designed in a split manner, which is convenient for split disassembly and local maintenance.

[0006] In order to solve the above technical problems, the utility model proposes the following technical solutions:

[0007] The present application relates to a Z-axis cover of a three-dimensional coordinate measuring machine, which is used to cover a Z-axis structure, and is characterized in that the Z-axis cover comprises:

[0008] a left fixed side cover, which is detachably mounted to the left side of the lower slide of the Z-axis structure;

[0009] a right fixed side cover, which is detachably mounted to the right side of the slide;

[0010] A left mounting side cover, which is detachably mounted to the left side of the left fixed side cover away from the Z axis;

[0011] a right mounting side cover, which is detachably mounted to the right side of the right fixed side cover away from the Z axis;

[0012] A front cover, which is located at the front side of the Z-axis structure, and the lower end of the front cover can be detachably mounted to the left fixed side cover and the right fixed side cover;

[0013] A rear cover, which is arranged opposite to the front cover, and the lower end of the rear cover can be detachably mounted to the left fixed side cover and the right fixed side cover;

[0014] A suspension part is installed on the top end of the upper balance bracket of the Z-axis structure, and the top ends of the front cover and the rear cover are both suspended on the suspension part.

[0015] In some embodiments of the present application, a plurality of first left magnetic attracting members are disposed on the left mounting side cover, a plurality of second left magnetic attracting members magnetically attracted to the plurality of first left magnetic attracting members are disposed on the left fixed side cover, and the left mounting side cover is magnetically attracted to the left fixed side cover;

[0016] The right installation side cover is provided with a plurality of first right magnetic attracting parts, the right fixed side cover is provided with a plurality of second right magnetic attracting parts magnetically attracted to the plurality of first right magnetic attracting parts, and the right installation side cover is magnetically attracted to the right fixed side cover.

[0017] In some embodiments of the present application, the plurality of first left magnetic attracting members each have a first left matching portion;

[0018] The corresponding plurality of second left magnetic attracting members have second left matching portions matching the first left matching portions;

[0019] The plurality of first right magnetic attracting members all have a first right matching portion;

[0020] The corresponding plurality of second right magnetic attracting members have second right matching portions matching with the first right matching portions.

[0021] In some embodiments of the present application, the left fixed side cover and the right fixed side cover are symmetrical with respect to the Z axis, and the left mounting side cover and the right mounting side cover are symmetrical with respect to the Z axis;

[0022] The Z-axis outer cover further comprises a mounting bracket, one end of the mounting bracket is mounted to the inside of the left fixed side cover and the other end is mounted to the inside of the right fixed side cover, and the mounting bracket has a first stud;

[0023] The front cover comprises a front side plate and an annular surface, wherein the annular surface is arranged on the rear side surface of the front side plate and butted against the rear side surface, and a second stud corresponding to the first stud is arranged on the inner side wall of the bottom of the annular surface, and the internal threaded hole of the second stud passes through the thickness of the annular surface along the hole axis thereof;

[0024] The screw passes through the second stud and the first stud.

[0025] In some embodiments of the present application, a left convex ridge is formed on the front side plate of the left fixed side cover, and a right convex ridge is formed on the front side plate of the right fixed side cover;

[0026] The inner side wall of the circumferential surface part is in contact with the outer side surface of the left raised rib and the outer side surface of the right raised rib to limit the position.

[0027] In some embodiments of the present application, the rear cover includes a C-shaped plate and a top surface, the C opening of the C-shaped plate faces the balance bracket along the Z-axis direction and the top surface closes one side of the C opening along the Z-axis direction, the front free edge of the C-shaped plate and the free edge of the top surface both extend into the front cover, and enclose a space for covering the balance bracket together with the front cover;

[0028] The free edge of the bottom of the C-shaped plate is connected to the left fixed side cover and the right fixed side cover.

[0029] In some embodiments of the present application, the upper edge of the left fixed side cover forms a left clamping portion, the upper edge of the right fixed side cover forms a right clamping portion, and the left clamping portion and the right clamping portion are butted against each other to form an upper clamping portion;

[0030] The free edge at the bottom of the C-shaped plate forms a lower clamping portion, and the upper clamping portion and the lower clamping portion are engaged with each other;

[0031] A left matching hole is formed at a free end of the upper edge of the left fixed side cover, and a right matching hole is formed at a free end of the upper edge of the right fixed side cover;

[0032] The free ends of the free edges of the bottom of the C-shaped plate are respectively formed with a lower left matching hole and a lower right matching hole;

[0033] The first screw passes through the lower left matching hole and the left matching hole, and the second screw passes through the lower right matching hole and the right matching hole.

[0034] In some embodiments of the present application, the suspension portion includes:

[0035] A suspension bolt mounted on the top of the balancing bracket;

[0036] A rubber gasket, which is sleeved on the suspension bolt;

[0037] The suspension bolts extend from the top ends of the front cover and the rear cover respectively, and the top ends of the front cover and the rear cover both abut against the rubber gasket.

[0038] In some embodiments of the present application, the front cover has a front side plate and a circumferential surface, and the circumferential surface is arranged on the rear side surface of the front side plate and butted against the rear side surface;

[0039] The rear cover comprises a C-shaped plate and a top surface, the C opening of the C-shaped plate faces the balance bracket along the Z-axis direction and the top surface closes one side of the C opening along the Z-axis direction, the front free edge of the C-shaped plate and the free edge of the top surface both extend into the front cover, and enclose a space for covering the balance bracket together with the front cover;

[0040] A first hanging hole is formed on the top surface, and a second hanging hole corresponding to the first hanging hole is formed on the top of the circumferential surface of the front cover;

[0041] The suspension bolt extends from the second suspension hole and the first suspension hole facing each other, and the peripheral portion of the first suspension hole abuts against the rubber gasket.

[0042] Compared with the prior art, the three-coordinate measuring machine provided by the utility model has the following advantages and beneficial effects:

[0043] (1) The Z-axis outer cover is split into multiple sub-covers (i.e., left fixed side cover, right fixed side cover, left mounting side cover, right mounting side cover, front cover, and rear cover), and each sub-cover can be disassembled and installed independently. During maintenance, the separate disassembly and assembly of the outer cover is more targeted, which reduces the complexity of disassembly and assembly of the outer cover and reduces the disassembly and assembly and maintenance time;

[0044] (2) The modular design of multiple sub-covers helps maintain the stability of the entire structure of the outer cover, avoiding the impact of unstable disassembly and assembly on the Z-axis structure, thereby affecting the measurement accuracy;

[0045] (3) The front and rear covers are suspended at the top instead of being rigidly connected to the Z-axis structure, which helps to maintain the stability of the outer cover structure.

[0046] The present application also relates to a three-coordinate measuring machine, comprising:

[0047] The three-axis motion platform includes a Y-axis platform and a Z-axis platform arranged on the Y-axis platform, and the Z-axis platform includes:

[0048] A Z-axis structure, which is slidably mounted on the Y-axis platform via a slide;

[0049] The Z-axis outer cover is the Z-axis outer cover of the coordinate measuring machine as described above, and is used to cover the Z-axis structure.

[0050] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, a brief introduction is given below to the drawings required for use in the embodiments of the utility model or the description of the prior art. 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 work.

[0052] Figure 1 This is a structural diagram of the Z-axis platform of the three-coordinate measuring machine proposed by the utility model being installed on the Y-axis platform;

[0053] Figure 2 This is an exploded view of the Z-axis platform of the three-coordinate measuring machine proposed by the utility model being installed on the Y-axis platform;

[0054] Figure 3 for Figure 2 A magnified view of part A;

[0055] Figure 4 This is a structural diagram of the installation of the left fixed side cover, the right fixed side cover, the left mounting side cover and the right mounting side cover in the Z-axis outer cover of the three-dimensional coordinate measuring machine proposed by the utility model;

[0056] Figure 5 It is a structural diagram of the right fixed side cover and the right mounting side cover of the Z-axis outer cover of the three-coordinate measuring machine proposed by the utility model;

[0057] Figure 6 This is a structural diagram of the rear cover in the Z-axis outer cover of the three-coordinate measuring machine proposed by the utility model;

[0058] Figure 7 This is a structural diagram of the front cover of the Z-axis outer cover of the three-coordinate measuring machine proposed by the utility model;

[0059] Figure 8 It is a cross-sectional view of the Z-axis platform of the three-coordinate measuring machine proposed by the utility model;

[0060] Fig. 9 for Figure 8 A magnified view of part B;

[0061] Reference numerals:

[0062] 100, Z-axis outer cover; 110, left fixed side cover; 111, left raised rib; 112, left clamping part; 113, first hanging ear; 120, right fixed side cover; 121, right raised rib; 122, right clamping part; 123, second hanging ear; 124, second right magnetic attraction piece; 130, left mounting side cover; 140, right mounting side cover; 141, first right magnetic attraction piece; 150, front cover; 151, front side plate; 152, circumferential surface; 1521, second hanging hole; 1522, second stud; 160, rear cover; 161, C-shaped plate; 162, top surface; 1621, first hanging hole; 1622, first mounting hole; 1623, second mounting hole; 163, first support leg; 164, second support leg; 170, hanging part; 171, hanging bolt; 172, rubber gasket; 180, mounting bracket; 180', hanging bracket; 1801, first mounting bracket; 1802, second mounting bracket; 190, first stud;

[0063] 200, Y-axis platform;

[0064] 300. Z-axis structure; 310. balancing bracket; 320. slide frame. DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0066] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0067] In the description of the present utility model, 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. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0068] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0069] In order to reduce the cumbersome disassembly problem caused by the integrated Z-axis cover, see Figures 1 to 9 The present application designs a Z-axis cover 100 for a three-dimensional coordinate measuring machine. The split-type cover divides the entire cover into a plurality of detachable sub-covers. When any part of the Z-axis structure 300 needs to be repaired, only the corresponding sub-cover needs to be removed, thereby reducing the tediousness of disassembly and improving maintenance efficiency. In addition, partial disassembly has little effect on the stability of the entire Z-axis platform, thereby avoiding affecting the measurement accuracy.

[0070] The existing three-dimensional coordinate measuring machine generally includes a base (not shown) and a three-axis motion platform (not shown), wherein the three-axis motion platform includes an X-axis platform, a Y-axis platform 200 and a Z-axis platform.

[0071] The base is used as a carrier of the three-dimensional coordinate measuring machine and is used to carry the X-axis platform, the Y-axis platform 200 and the Z-axis platform.

[0072] The Y-axis platform 200 is slidably mounted on the X-axis platform, and the Z-axis platform is slidably mounted on the Y-axis platform 200.

[0073] See also Figure 1 , Figure 2 and Figure 8 The Z-axis platform includes a Z-axis structure 300 and a Z-axis outer cover 100 for covering the Z-axis structure 300, wherein the Z-axis structure 300 includes an upper balance bracket 310 and a lower slide 320, and the slide 320 slides along the Y-axis platform 200 through a slide seat (not shown), and the probe is installed on the Z-axis structure 300, so as to realize the three-coordinate XYZ measurement of the three-coordinate measuring machine.

[0074] The present application mainly relates to the structure of the Z-axis housing 100 .

[0075] See also Figure 1 and Figure 2 The Z-axis outer cover 100 includes a left fixed side cover 110 , a left mounting side cover 130 , a right fixed side cover 120 , a right mounting side cover 140 , a front cover 150 , a rear cover 160 and a hanging portion 170 .

[0076] In some embodiments of the present application, the three-coordinate measuring machine has a loading and unloading space (not shown), the side of the Z-axis outer cover 100 facing the loading and unloading space and perpendicular to the Y-axis direction is called the front side, the side opposite to the front side is called the rear side, one side of the Z-axis outer cover 100 along the Y-axis direction is called the left side and the other opposite side is called the right side.

[0077] In the present application, the Z-axis outer cover 100 is arranged symmetrically with respect to the Z-axis direction.

[0078] See also Figure 2 The left fixed side cover 110 is detachably mounted on the left side of the slide 320 by means of screws, for example, and the right fixed side cover 120 is detachably mounted on the right side of the slide 320 by means of screws, for example.

[0079] In some embodiments of the present application, the left fixed side cover 110 has a left mounting opening (not marked) on the left side, and the right fixed side cover 120 has a right mounting opening (not marked) on the right side, so the left mounting side cover 130 is detachably mounted to the left mounting opening, for example, by means of screws or snaps, and the right mounting side cover 140 is detachably mounted to the right mounting opening, for example, by means of screws or snaps.

[0080] In some embodiments of the present application, Figure 2 The left mounting side cover 130 and the right mounting side cover 140 are located on both sides of the slide 320. Relatively speaking, the maintenance frequency of the slide 320 is relatively high. Therefore, for the stability of the entire structure of the Z-axis outer cover 100 and the convenience of maintenance, the left mounting side cover 130 is magnetically mounted at the left mounting port of the left fixed side cover 110, and the right mounting side cover 140 is magnetically mounted at the right mounting port of the right fixed side cover 120.

[0081] The following description will be made by taking the example that the right mounting side cover 140 is magnetically mounted at the right mounting opening of the right fixed side cover 120 .

[0082] See also Figure 5 A plurality of first right magnetic members 141 are arranged on the inner side of the right mounting side cover 140, and a plurality of second right magnetic members 124 are arranged on the inner side of the right fixed side cover 120. The number of the plurality of first right magnetic members 141 is the same as and corresponds to the number of the plurality of second right magnetic members 124.

[0083] When each first right magnetic attraction member 141 magnetically attracts each second right magnetic attraction member 124 correspondingly, the right installation side cover 140 is magnetically mounted to the right installation opening of the right fixed side cover 120 .

[0084] Likewise, the left installation side cover 130 will also be magnetically attracted to the left installation opening of the left fixed side cover 110 .

[0085] For the stability of magnetic attraction, the plurality of first right magnetic attraction members 141 should be arranged in a dispersed manner to achieve multi-point stable magnetic attraction.

[0086] Furthermore, in some embodiments of the present application, the plurality of first right magnetic members 141 all have a first right matching portion (not marked), and the plurality of second right magnetic members 124 all have a second right matching portion (not marked) matching the first right matching portion.

[0087] Specifically, protrusions (unmarked) may be provided on several of the multiple first right magnetic components 141, and correspondingly, receiving grooves (unmarked) may be provided on several of the multiple second right magnetic components 124. When the right mounting side cover 140 magnetically attracts the right fixed side cover 120, the protrusions of the first right magnetic component 141 are embedded in the corresponding receiving grooves of the second right magnetic component 124 to achieve stable magnetic attraction.

[0088] In some embodiments of the present application, see Figure 7 The front cover 150 has a front side plate 151 and a peripheral surface 152. The peripheral surface 152 is arranged on the rear side of the front side plate 151 and butts against the rear side.

[0089] The upper portion of the front cover 150 is suspended on the suspension portion 170 , and the lower portion is mounted to the left and right fixed side covers 110 and 120 .

[0090] In some embodiments of the present application, in order to mount the lower portion of the front cover 150 to the left fixed side cover 110 and the right fixed side cover 120, see Figure 4 The Z-axis housing 100 further includes a mounting bracket 180 , one end of which is mounted on the inner side of the left fixed side housing 110 and the other end of which is mounted on the inner side of the right fixed side housing 120 .

[0091] Furthermore, a first stud 190 is disposed on the mounting bracket 180 .

[0092] See also Figure 7 A second stud 1522 is provided on the inner side wall of the bottom of the annular surface 152 , and the internal threaded hole of the second stud 1522 penetrates the thickness of the annular surface 152 along its hole axis.

[0093] When the front cover 150 is installed, the edge of the annular surface 152 of the front cover 150 is close to the outer side surfaces of the left fixed side cover 110 and the right fixed side cover 120, and the first stud 190 is correspondingly located above the second stud 1522, and the internal threaded hole of the first stud 190 and the internal threaded hole of the second stud 1522 are on the same axis.

[0094] Therefore, the screw passes through the outer side of the front cover 150 through the through hole on the circumferential surface 152 and is screwed into the second stud 1522 , and then is screwed into the first stud 190 , thereby fixing the lower part of the front cover 150 .

[0095] In some embodiments of the present application, in order to limit the installation position of the front cover 150, see Figure 1 and Figure 4 A left protruding rib 111 is formed on the front side plate 151 of the left fixed side cover 110 , and a right protruding rib 121 is formed on the front side plate 151 of the corresponding right fixed side cover 120 .

[0096] Part of the inner wall of the circumferential surface 152 is in contact with the outer side surface of the left raised rib 111 away from the right fixed side cover 120 and the outer side surface of the right raised rib 121 away from the left fixed side cover 110 to limit the position, so that the front cover 150 is conveniently positioned and installed.

[0097] In addition, a logo groove (not shown) is dug on the outer surface of the front side plate 151 of the front cover 150 to cooperate with the logo mark protruding inside the device to limit the position.

[0098] The upper portion of the rear cover 160 is also suspended on the suspension portion 170 , and the lower portion is also mounted on the left fixed side cover 110 and the right fixed side cover 120 .

[0099] In some embodiments of the present application, see Figure 6 The rear cover 160 includes a C-shaped plate 161 and a top surface 162 . The C opening of the C-shaped plate 161 faces the balance bracket 310 along the Z-axis direction, and the top surface 162 closes one side of the C opening along the Z-axis direction.

[0100] For the purpose of aesthetics, when the front cover 150 and the rear cover 160 are buckled together, the front free edge of the C-shaped plate 161 of the rear cover 160 and the free edge of the top surface 162 are extended into the front cover 150 (see Figure 1 and Fig. 9 ), and together with the front cover 150, encloses a space for covering the balancing bracket 310.

[0101] The bottom free edge of the C-shaped plate 161 of the rear cover 160 is connected to the left fixed side cover 110 and the right fixed side cover 120 , so that the rear cover 160 is installed.

[0102] In some embodiments of the present application, in order to better define and install the rear cover 160, see Figure 4 The upper edge of the left fixed side cover 110 forms a left clamping portion 112, and the upper edge of the right fixed side cover 120 forms a right clamping portion 122. The left clamping portion 112 and the right clamping portion 122 are butted against each other to form an upper clamping portion.

[0103] Correspondingly, a lower clamping portion (not shown) clamped with the upper clamping portion is formed on the bottom free edge of the C-shaped plate 161 of the rear cover 160 .

[0104] Specifically, the upper clamping portion may be an upper receiving groove, and the lower clamping portion may be a lower protruding portion. When the rear cover 160 is installed, the lower protruding portion is embedded in the upper receiving groove to achieve position limiting of the rear cover 160 .

[0105] In addition, in order to securely install the rear cover 160, see Figure 4 A first hanging ear 113 is formed at the free end of the upper edge of the left fixed side cover 110, and the first hanging ear 113 is formed with an upper left matching hole. A second hanging ear 123 is formed at the free end of the upper edge of the right fixed side cover 120, and the second hanging ear 123 is formed with an upper right matching hole.

[0106] See also Figure 6 The free ends of the bottom free edge of the C-shaped plate 161 of the rear cover 160 respectively form a first leg 163 and a second leg 164, the first leg 163 is formed with a lower left matching hole, and the second leg 164 is formed with a lower right matching hole.

[0107] The first screw passes through the lower left matching hole and the upper left matching hole in sequence, and the second screw passes through the lower right matching hole and the upper right matching hole in sequence, so as to achieve the installation and fixation of the rear cover 160 and the left fixed side cover 110 and the right fixed side cover 120.

[0108] As described above, the front free edge of the C-shaped plate 161 of the rear cover 160 and the free edge of the top surface 162 are extended into the front cover 150. Therefore, from the appearance, the first screw and the second screw are not visible, which improves the overall aesthetics of the Z-axis outer cover 100. Figure 1 .

[0109] As described above, the split and detachable design of the Z-axis outer cover 100 facilitates targeted disassembly to repair different parts of the Z-axis structure 300, reducing the tedious disassembly process, and because of the detachable sub-cover, the overall stability of the Z-axis outer cover 100 is less affected.

[0110] Furthermore, the magnetic installation of the left mounting side cover 130 and the right mounting side cover 140 reduces the difficulty of assembly and disassembly.

[0111] In order to reduce the impact of the vibration of the Z-axis housing 100 on the Z-axis structure 300, see Figure 3 and Fig. 9 The suspension part 170 of the present application may include a suspension bolt 171 and a rubber washer 172 .

[0112] The suspension bolt 171 is installed on the top of the balance bracket 310 through the suspension bracket 180', and the rubber gasket 172 is sleeved on the suspension bolt 171. The suspension bolt 171 extends from the top of the front cover 150 and the rear cover 160 respectively, and the top of the front cover 150 and the rear cover 160 both abut against the rubber gasket 172.

[0113] When the Z-axis housing 100 vibrates, the vibration transmitted to the balance bracket 310 and the slide 320 is buffered by the abutting rubber gasket 172 , thereby reducing the possibility that the Z-axis structure 300 vibrates due to the vibration of the Z-axis housing 100 and affects the measurement accuracy.

[0114] In some embodiments of the present application, see Figure 3 and Figure 6 A first hanging hole 1621 is provided on the top surface 162 of the rear cover 160, and see Figure 3 and Figure 7 A second hanging hole 1521 is opened on the top of the circumferential surface 152 of the front cover 150.

[0115] As described above, when the front cover 150 and the rear cover 160 are buckled together, the front free edge of the C-shaped plate 161 of the rear cover 160 and the free edge of the top surface 162 are extended into the front cover 150. Therefore, when the front cover 150 and the rear cover 160 are buckled together, the second hanging hole 1521 is located directly above the first hanging hole 1621 (see Fig. 9 ), therefore, the suspension bolt 171 can extend from the first suspension hole 1621 and the second suspension hole 1521.

[0116] Since the area of ​​the rubber gasket 172 is larger than the area of ​​the first suspension hole 1621, the peripheral portion of the first suspension hole 1621 abuts against the rubber gasket 172, so that the rubber gasket 172 can buffer the vibration of the front cover 150 and the rear cover 160 in the Z-axis direction, thereby avoiding the vibration generated by the Z-axis outer cover 100 from being transmitted to the Z-axis structure 300 and affecting its stability and measurement accuracy.

[0117] In some embodiments of the present application, in order to stably install the front cover 150 and the rear cover 160, in addition to the hanging part 170 as described above, see Figure 3 and Fig. 9 A first mounting bracket 1801 and a second mounting bracket 1802 may also be disposed on the top of the balancing bracket 310 , and a first mounting bolt hole (not shown) and a second mounting bolt hole (not shown) may be disposed on the first mounting bracket 1801 and the second mounting bracket 1802 , respectively.

[0118] Correspondingly, see Figure 6 A first mounting hole 1622 and a second mounting hole 1623 are respectively opened on both sides of the first hanging hole 1621 of the rear cover 160, screw I passes through the first mounting hole 1622 and the first mounting bolt hole, and screw II passes through the second mounting hole 1623 and the second mounting bolt hole to achieve fixed installation of the rear cover 160.

[0119] Considering the aesthetics of the Z-axis outer cover 100, the first mounting hole 1622 and the second mounting hole 1623 should be opened at positions such that when the front cover 150 and the rear cover 160 are buckled together, the front cover 150 can cover the first mounting hole 1622 and the second mounting hole 1623. At this time, the screws I and II are not exposed to the outside, which improves the overall aesthetics of the Z-axis outer cover 100. Figure 1 .

[0120] When assembling the Z-axis outer cover 100, first (1) assemble the left fixed side cover 110 and the right fixed side cover 120; then (2) assemble the left mounting side cover 130 and the right mounting side cover 140 to the left fixed side cover 110 and the right fixed side cover 120 respectively; then (3) assemble the rear cover 160; and finally (4) assemble the front cover 150.

[0121] In the above assembly process, (2) can also be assembled last, but the assembly order of (1), (3) and (4) cannot be changed.

[0122] 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 cover for a three-dimensional coordinate measuring machine, used to cover the Z-axis structure, characterized in that: The Z-axis housing comprises: a left fixed side cover, which is detachably mounted to the left side of the lower slide in the Z-axis structure; a right fixed side cover, which is detachably mounted to the right side of the slide; A left mounting side cover, which is detachably mounted to the left side of the left fixed side cover away from the Z axis; a right mounting side cover, which is detachably mounted to the right side of the right fixed side cover away from the Z axis; A front cover, which is located at the front side of the Z-axis structure, and the lower end of the front cover can be detachably mounted to the left fixed side cover and the right fixed side cover; A rear cover, which is arranged opposite to the front cover, and the lower end of the rear cover can be detachably mounted to the left fixed side cover and the right fixed side cover; A suspension part is installed on the top end of the upper balance bracket of the Z-axis structure, and the top ends of the front cover and the rear cover are both suspended on the suspension part.

2. The Z-axis cover of a coordinate measuring machine according to claim 1, characterized in that: The left mounting side cover is provided with a plurality of first left magnetic attracting members, the left fixed side cover is provided with a plurality of second left magnetic attracting members magnetically attracted to the plurality of first left magnetic attracting members, and the left mounting side cover is magnetically attracted to the left fixed side cover; The right installation side cover is provided with a plurality of first right magnetic attracting parts, the right fixed side cover is provided with a plurality of second right magnetic attracting parts magnetically attracted to the plurality of first right magnetic attracting parts, and the right installation side cover is magnetically attracted to the right fixed side cover.

3. The Z-axis cover of a coordinate measuring machine according to claim 2, characterized in that: The plurality of first left magnetic attracting members each have a first left matching portion; The corresponding plurality of second left magnetic attracting members have second left matching portions matching the first left matching portions; The plurality of first right magnetic attracting members all have a first right matching portion; The corresponding plurality of second right magnetic attracting members have second right matching portions matching with the first right matching portions.

4. The Z-axis housing of a coordinate measuring machine according to claim 1, characterized in that: The left fixed side cover and the right fixed side cover are symmetrical with respect to the Z axis, and the left mounting side cover and the right mounting side cover are symmetrical with respect to the Z axis; The Z-axis outer cover further comprises a mounting bracket, one end of the mounting bracket is mounted to the inside of the left fixed side cover and the other end is mounted to the inside of the right fixed side cover, and the mounting bracket has a first stud; The front cover comprises a front side plate and an annular surface, wherein the annular surface is arranged on the rear side surface of the front side plate and butted against the rear side surface, and a second stud corresponding to the first stud is arranged on the inner side wall of the bottom of the annular surface, and the internal threaded hole of the second stud passes through the thickness of the annular surface along the hole axis thereof; The screw passes through the second stud and the first stud.

5. The Z-axis housing of a coordinate measuring machine according to claim 4, characterized in that: A left convex ridge is formed on the front side plate of the left fixed side cover, and a right convex ridge is formed on the front side plate of the right fixed side cover; The inner side wall of the circumferential surface part is in contact with the outer side surface of the left raised rib and the outer side surface of the right raised rib to limit the position.

6. The Z-axis housing of a coordinate measuring machine according to claim 1, characterized in that: The rear cover comprises a C-shaped plate and a top surface, the C opening of the C-shaped plate faces the balance bracket along the Z-axis direction and the top surface closes one side of the C opening along the Z-axis direction, the front free edge of the C-shaped plate and the free edge of the top surface both extend into the front cover, and enclose a space for covering the balance bracket together with the front cover; The free edge of the bottom of the C-shaped plate is connected to the left fixed side cover and the right fixed side cover.

7. The Z-axis housing of a coordinate measuring machine according to claim 6, characterized in that: The upper edge of the left fixed side cover forms a left clamping portion, the upper edge of the right fixed side cover forms a right clamping portion, and the left clamping portion and the right clamping portion are butted against each other to form an upper clamping portion; The free edge at the bottom of the C-shaped plate forms a lower clamping portion, and the upper clamping portion and the lower clamping portion are engaged with each other; A left matching hole is formed at a free end of the upper edge of the left fixed side cover, and a right matching hole is formed at a free end of the upper edge of the right fixed side cover; The free ends of the free edges of the bottom of the C-shaped plate are respectively formed with a lower left matching hole and a lower right matching hole; The first screw passes through the lower left matching hole and the left matching hole, and the second screw passes through the lower right matching hole and the right matching hole.

8. The Z-axis housing of a coordinate measuring machine according to claim 1, characterized in that: The suspension part comprises: A suspension bolt mounted on the top of the balancing bracket; A rubber gasket, which is sleeved on the suspension bolt; The suspension bolts extend from the top ends of the front cover and the rear cover respectively, and the top ends of the front cover and the rear cover both abut against the rubber gasket.

9. The Z-axis housing of a coordinate measuring machine according to claim 8, characterized in that: The front cover has a front side plate and a peripheral surface, wherein the peripheral surface is arranged on the rear side surface of the front side plate and butts against the rear side surface; The rear cover comprises a C-shaped plate and a top surface, the C opening of the C-shaped plate faces the balance bracket along the Z-axis direction and the top surface closes one side of the C opening along the Z-axis direction, the front free edge of the C-shaped plate and the free edge of the top surface both extend into the front cover, and enclose a space for covering the balance bracket together with the front cover; A first hanging hole is formed on the top surface, and a second hanging hole corresponding to the first hanging hole is formed on the top of the circumferential surface of the front cover; The suspension bolt extends from the second suspension hole and the first suspension hole facing each other, and the peripheral portion of the first suspension hole abuts against the rubber gasket.

10. A three-dimensional coordinate measuring machine, characterized in that: include: The three-axis motion platform includes a Y-axis platform and a Z-axis platform arranged on the Y-axis platform, and the Z-axis platform includes: A Z-axis structure, which is slidably mounted on the Y-axis platform via a slide; The Z-axis cover is a Z-axis cover for a coordinate measuring machine as claimed in any one of claims 1 to 9, and is used for covering the Z-axis structure.

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