CN219714618U - Overweight Z axle gravity balance mechanism of three-coordinate measuring machine - Google Patents
Overweight Z axle gravity balance mechanism of three-coordinate measuring machine Download PDFInfo
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- CN219714618U CN219714618U CN202321218052.7U CN202321218052U CN219714618U CN 219714618 U CN219714618 U CN 219714618U CN 202321218052 U CN202321218052 U CN 202321218052U CN 219714618 U CN219714618 U CN 219714618U
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- 230000005484 gravity Effects 0.000 title claims abstract description 21
- 238000009434 installation Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 description 8
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- 238000012545 processing Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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Abstract
The utility model discloses an overweight Z-axis gravity balance mechanism of a three-coordinate measuring machine, which comprises a first bearing seat, a universal joint cross shaft, a second bearing seat, a connecting seat, an air cylinder, a top plate and an overweight Z-axis, wherein the overweight Z-axis is vertically arranged, a vertical through hole is formed in the center of the overweight Z-axis, the air cylinder is vertically arranged in the vertical through hole, one end of a screw rod of the air cylinder is upwards arranged, the top of the screw rod of the air cylinder is fixed with the bottom of the connecting seat, the top of the connecting seat is fixedly provided with the second bearing seat, the first bearing seat is arranged right above the second bearing seat, one shaft of the universal joint cross shaft is arranged in the second bearing seat, the other shaft of the universal joint cross shaft is arranged in the first bearing seat, the top of the first bearing seat is fixed on the lower surface of the top plate, and the lower surface of the top plate is fixedly connected with the upper top surface of the overweight Z-axis.
Description
Technical Field
The utility model belongs to the technical field of three-coordinate measuring machines, and particularly relates to an overweight Z-axis weight balance mechanism of a three-coordinate measuring machine.
Background
The traditional three-coordinate measuring machine is generally used for balancing the Z axis in a support mode, the support of the three-coordinate measuring machine is changed from a fixed part to an adjustable part, the mass and the height of a Z axis moving part of the three-coordinate measuring machine are reduced, namely the inertial force and deformation of the Z axis part of the three-coordinate measuring machine are reduced, so that the Z axis stability of a large three-coordinate measuring machine is improved, and the measuring precision of the three-coordinate measuring machine is increased.
The bracket and the cylinder of the traditional three-coordinate measuring machine are directly connected together and then fixed on the Z-axis top plate. Under the action of self gravity of the Z axis, the Z axis is easy to deform and twist in the Z axis operation, the Z axis has large mass, and the measurement accuracy is difficult to ensure. It is therefore necessary to develop an adjustable overweight Z-axis weight balancing mechanism.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides an overweight Z-axis gravity balance mechanism of a three-coordinate measuring machine.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides an overweight Z axle gravity balance mechanism of three-dimensional measuring machine, includes first bearing frame, universal joint cross, second bearing frame, connecting seat, cylinder, roof and overweight Z axle, overweight Z axle is vertical to be arranged, overweight Z axle central point put and is provided with vertical through-hole, the cylinder is vertical to be set up in vertical through-hole, and the one end that the cylinder has the screw rod is upwards, and the screw rod top and the connecting seat bottom of cylinder are fixed, and the connecting seat top is fixed with the second bearing frame, and first bearing frame sets up directly over the second bearing frame, one of them axle of universal joint cross is installed in the second bearing frame, and another axle of universal joint cross is installed in first bearing frame, and first bearing frame top is fixed in the roof lower surface, roof lower surface still with overweight Z epaxial top surface fixed connection.
Preferably, the overweight Z axle is the rectangular cylinder, and overweight Z axle central point puts and is provided with circular shape vertical through-hole, and overweight Z is epaxial top surface has seted up first screw hole, and first screw hole is a plurality of, and a plurality of first screw holes evenly spaced distributes in overweight Z epaxial top surface.
Preferably, the roof is the rectangular plate, and roof central point puts and is provided with first connecting hole, and roof periphery position is provided with the second screw hole, first screw hole and second screw hole pass through screw fixed connection, make roof lower surface periphery and overweight Z axle upper top surface periphery fixed connection.
Preferably, the first bearing seat is formed by a first bottom plate and a first boss, the first bosses are two, the two first bosses are arranged in parallel and fixed on the lower surface of the first bottom plate, the two first bosses are all provided with first cross shaft installation through holes, two ends of one shaft of the universal joint cross shaft are respectively installed in the first cross shaft installation through holes of the two first bosses, a second connection through hole is formed in the first bottom plate, and a bolt penetrates through the first connection through hole and the second connection through hole to connect a nut so that the top of the first bottom plate is fixed on the central position of the lower surface of the top plate.
Preferably, the second bearing comprises second bottom plate and second boss, and second boss is two, and two second boss parallel arrangement are fixed in second bottom plate upper surface, and two the second boss all is provided with second cross installation through-hole, and the both ends of universal joint cross another axle are installed respectively in two in the second cross installation through-hole of second boss, the third connecting through-hole has been seted up on the second bottom plate, and second bearing seat passes through bolt and nut fixed connection with the connecting seat.
Preferably, the universal joint cross shaft is connected into a cross shape by two cylindrical rods, and round bosses are attached to two ends of the two cylindrical rods; the front shaft and the rear shaft of the universal joint cross shaft are connected with two first cross shaft installation through holes of the first bearing seat, and the left shaft and the right shaft of the universal joint cross shaft are connected with two second cross shaft installation through holes of the second bearing seat.
Preferably, the vertical section of the connecting seat is of a T shape, a screw installation through hole is formed in the center of the connecting seat, a fourth connecting through hole is formed in the periphery of the connecting seat, a bolt penetrates through the third connecting through hole and the fourth connecting through hole to enable the second bearing seat to be fixedly connected with the connecting seat, and the top of the screw of the air cylinder penetrates through the screw installation through hole to be fixedly connected with the connecting nut.
Preferably, the screw mounting through hole is a counter bore, and a nut connected with the top of the screw is arranged in the counter bore.
Compared with the prior art, the utility model has the advantages that:
(1) The utility model discloses an overweight Z-axis gravity balance mechanism of a three-coordinate measuring machine, which is characterized in that a bearing seat and a universal joint cross shaft are adopted to correct the direction of an overweight Z-axis in the moving process, and the overweight Z-axis is balanced by the state that the overweight Z-axis is weightless in the moving process of the universal joint cross shaft and the bearing seat, so that the torsion resistance of the overweight Z-axis is improved, the overweight Z-axis deformation is avoided, the influence on the precision of the measuring machine is small, compared with the prior art, the overweight Z-axis gravity balance mechanism is more stable, the inertia force of a moving part in the moving process is reduced, and the positioning precision of equipment is improved;
(2) The utility model increases the stability of the overweight Z axis of the large three-coordinate measuring machine, reduces the defects brought by the quality of the overweight Z axis material, improves the positioning measurement precision of the measuring machine, and has simple structure and easy processing;
(3) The utility model discloses an overweight Z-axis adjusting mechanism of a three-coordinate measuring machine, which can automatically adjust the overweight Z-axis position to balance gravity, is convenient in adjusting mode and simple in structure, can simultaneously adjust the front, back, left and right positions of the overweight Z-axis and the level of the overweight Z-axis, and has complete functions;
(4) The overweight Z-axis gravity balance mechanism of the three-coordinate measuring machine has low processing requirement, convenient processing, reasonable layout, time and labor saving and convenient and simple maintenance personnel in the maintenance process.
Drawings
FIG. 1 is a schematic diagram of a front cross-sectional structure of an overweight Z-axis gravity balance mechanism of a three-coordinate measuring machine according to the present utility model;
fig. 2 is a schematic side sectional structure view of an overweight Z-axis gravity balance mechanism of a three-coordinate measuring machine according to the present utility model.
Reference numerals illustrate:
1. the device comprises a first bearing seat, a universal joint cross shaft, a second bearing seat, a connecting seat, a cylinder, a top plate, a overweight Z shaft and a connecting seat, wherein the first bearing seat, the universal joint cross shaft, the second bearing seat, the connecting seat, the cylinder, the top plate, the overweight Z shaft and the connecting seat are respectively arranged on the first bearing seat, the universal joint cross shaft, the second bearing seat, the connecting seat, the overweight Z shaft;
1-1 parts of a first bottom plate, 1-2 parts of a first boss;
1-1-1, a second connecting through hole;
1-2-1, a first cross shaft mounting through hole;
3-1, a second bottom plate, 3-2 and a second boss;
3-1-1, a third connecting through hole, 3-2-1 and a second shaft mounting through hole;
4-1, a screw mounting through hole, 4-2 and a fourth connecting through hole;
5-1, a screw rod;
6-1, a first connecting hole, 6-2 and a second threaded hole;
7-1, vertical through holes, 7-2 and a first threaded hole.
Detailed Description
The following describes specific embodiments of the present utility model with reference to examples:
it should be noted that the structures, proportions, sizes and the like illustrated in the present specification are used for being understood and read by those skilled in the art in combination with the disclosure of the present utility model, and are not intended to limit the applicable limitations of the present utility model, and any structural modifications, proportional changes or size adjustments should still fall within the scope of the disclosure of the present utility model without affecting the efficacy and achievement of the present utility model.
Example 1
As shown in fig. 1-2, the utility model discloses an overweight Z-axis gravity balance mechanism of a three-coordinate measuring machine, which comprises a first bearing seat 1, a universal joint cross shaft 2, a second bearing seat 3, a connecting seat 4, a cylinder 5, a top plate 6 and an overweight Z-axis 7, wherein the overweight Z-axis 7 is vertically arranged, a vertical through hole 7-1 is arranged at the center of the overweight Z-axis 7, the cylinder 5 is vertically arranged in the vertical through hole 7-1, one end of the cylinder 5 with a screw 5-1 is upwards, the top of the screw 5-1 of the cylinder 5 is fixed with the bottom of the connecting seat 4, the top of the connecting seat 4 is fixedly provided with a second bearing seat 3, the first bearing seat 1 is arranged right above the second bearing seat 3, one shaft of the universal joint cross shaft 2 is arranged in the second bearing seat 3, the other shaft of the universal joint cross shaft 2 is arranged in the first bearing seat 1, the top of the first bearing seat 1 is fixedly arranged on the lower surface of the top plate 6, and the lower surface of the top plate 6 is fixedly connected with the upper top surface of the overweight Z-axis 7.
Example 2
As shown in fig. 1-2, preferably, the overweight Z axis 7 is a rectangular cylinder, a circular vertical through hole 7-1 is provided at the center of the overweight Z axis 7, a plurality of first threaded holes 7-2 are provided on the top surface of the overweight Z axis 7, and the plurality of first threaded holes 7-2 are uniformly distributed on the top surface of the overweight Z axis 7 at intervals.
The overweight Z shaft 7 is a marble Dan Juxing cylinder, a vertical through hole 7-1 is arranged in the middle, a first threaded hole 7-2 matched with the top plate 6 is arranged on the upper surface of the overweight Z shaft, and the overweight Z shaft 7 is connected with the first threaded hole 7-2 through a screw penetrating through the second threaded hole 6-2 of the top plate 6.
The top plate 6 is a rectangular plate, a first connecting through hole 6-1 is formed in the center of the top plate 6, a second threaded hole 6-2 is formed in the periphery of the top plate 6, and the first threaded hole 7-2 and the second threaded hole 6-2 are fixedly connected through screws, so that the periphery of the lower surface of the top plate 6 is fixedly connected with the periphery of the upper top surface of the overweight Z shaft 7.
Example 3
As shown in fig. 1-2, preferably, the first bearing seat 1 is composed of a first bottom plate 1-1 and first bosses 1-2, two first bosses 1-2 are arranged in parallel and fixed on the lower surface of the first bottom plate 1-1, two first bosses 1-2 are respectively provided with a first cross shaft mounting through hole 1-2-1, two ends of one shaft of the universal joint cross shaft 2 are respectively mounted in the first cross shaft mounting through holes 1-2-1 of the two first bosses 1-2, a second connecting through hole 1-1-1 is formed in the first bottom plate 1-1, and a bolt penetrates through the first connecting through hole 6-1 and a second connecting through hole 1-1-1 connecting nut to enable the top of the first bottom plate 1-1 to be fixed on the center position of the lower surface of the top plate 6.
4 threaded holes are formed around the first cross shaft mounting through holes 1-2-1 and are used for fixing round bosses of the universal joint cross shaft 2.
As shown in fig. 1-2, preferably, the second bearing 3 is composed of a second bottom plate 3-1 and second bosses 3-2, two second bosses 3-2 are arranged in parallel and fixed on the upper surface of the second bottom plate 3-1, two second bosses 3-2 are respectively provided with a second cross shaft mounting through hole 3-2-1, two ends of the other shaft of the universal joint cross shaft 2 are respectively mounted in the second cross shaft mounting through holes 3-2-1 of the two second bosses 3-2, a third connecting through hole 3-1-1 is formed in the second bottom plate 3-1, and the second bearing seat 3 is fixedly connected with the connecting seat 4 through bolts and nuts.
Example 4
As shown in fig. 1-2, preferably, the universal joint cross shaft 2 is formed by connecting two cylindrical rods in a cross shape, and two ends of the two cylindrical rods are accompanied by a round boss; the front and rear shafts of the universal joint cross shaft 2 are connected with two first cross shaft installation through holes 1-2-1 of the first bearing seat 1, and the left and right shafts of the universal joint cross shaft 2 are connected with two second cross shaft installation through holes 3-2-1 of the second bearing seat 3.
Example 5
As shown in fig. 1-2, preferably, the vertical section of the connecting seat 4 is a T shape, a screw mounting through hole 4-1 is provided at the center of the connecting seat 4, a fourth connecting through hole 4-2 is provided at the periphery of the connecting seat 4, a bolt passes through the third connecting through hole 3-1-1 and a fourth connecting through hole 4-2 connecting nut to fixedly connect the second bearing seat 3 with the connecting seat 4, and the top of the screw 5-1 of the air cylinder 5 passes through the screw mounting through hole 4-1 connecting nut to be fixed.
The connecting seat 4 consists of a bottom plate and a boss, the boss is parallel and vertically fixed on the lower surface of the bottom plate, the boss is provided with through holes for fixing screws 5-1 of the air cylinders 5, and the bottom plate is provided with 4 through holes for fixing the second bearing seat 3.
As shown in fig. 1-2, preferably, the screw mounting through hole 4-1 is a counter bore, and a nut connected with the top of the screw 5-1 is disposed in the counter bore.
The air cylinder 5 is provided with a threaded cylinder rod and a matched nut, the threaded cylinder rod penetrates through the screw installation through hole 4-, and the matched nut is pressed into the counter bore surface of the connecting seat 4 and is pressed.
The bottom of the air cylinder 5 is not connected with the overweight Z shaft 7, and the bottom of the air cylinder 5 is fixed on a three-coordinate measuring machine.
The working principle of the utility model is as follows:
as shown in fig. 1-2, the utility model discloses an overweight Z-axis gravity balance mechanism of a three-coordinate measuring machine, which comprises a first bearing seat 1, a universal joint cross shaft 2, a second bearing seat 3, a connecting seat 4, an air cylinder 5, a top plate 6 and an overweight Z-axis 7, wherein the upper surface of the overweight Z-axis 7 is provided with a first threaded hole 7-2, a round vertical through hole 7-1 is arranged in the center position, the overweight Z-axis 7 is vertically arranged, the air cylinder 5 is vertically arranged in the vertical through hole 7-1, the first threaded hole 7-2 on the upper surface of the overweight Z-axis 7 is connected with the top plate 6 through a screw, the lower surface of the top plate 6 is connected with the first bearing seat 1 through a screw, a first boss 1-2 of the first bearing seat 1 is provided with a first cross shaft mounting through hole 1-2-1, a second boss 3-2 of the second bearing seat 3 is provided with a second cross shaft mounting through hole 3-2-1, the front and rear shafts of the universal joint cross shaft 2 are connected with two first cross shaft mounting through holes 1-2-1 of the first bearing seat 1, the left and right shafts of the universal joint cross shaft 2 are connected with the second cross shaft 3-2 through holes 3-2-1 through the screw, the bottom of the self-locking nut is connected with the self-locking nut 4 through the screw, and the self-locking nut is connected with the bottom 4 through the screw.
When the gravity balance mechanism is used, the air cylinder 5 is ventilated, the air cylinder 5 generates upward thrust by the screw 5-1 of the air cylinder 5 to enable the overweight Z shaft 7 of granite to generate displacement, and the front, back, left and right planes are vertical due to the cross-shaped universal shaft 2 which is connected with the first bearing seat 1 and the second bearing seat 3, so that the front, back, left and right positions of the overweight Z shaft 7 can be adjusted, the overweight Z shaft 7 is enabled to reach a gravity-free state by adjusting the pressure of the air cylinder 5, the balance state is achieved, and the functions of adjusting the height position of the overweight Z shaft 7 and the level of the overweight Z shaft 7 are achieved.
The utility model discloses an overweight Z-axis gravity balance mechanism of a three-coordinate measuring machine, which is characterized in that a bearing seat and a universal joint cross shaft are adopted to correct the direction of an overweight Z-axis in the moving process, and the overweight Z-axis is balanced by enabling the overweight Z-axis to reach a weightlessness state in the moving process through the universal joint cross shaft and the bearing seat, so that the torsion resistance of the overweight Z-axis is improved, the overweight Z-axis deformation is avoided, the influence on the precision of the measuring machine is small, and compared with the prior art, the overweight Z-axis gravity balance mechanism is more stable, the inertia force of a moving part in the moving process is reduced, and the positioning precision of equipment is improved.
The utility model increases the stability of the overweight Z axis of the large three-coordinate measuring machine, reduces the defects brought by the quality of the overweight Z axis material, improves the positioning and measuring precision of the measuring machine, and has simple structure and easy processing.
The utility model discloses an overweight Z-axis adjusting mechanism of a three-coordinate measuring machine, which can automatically adjust the overweight Z-axis position to balance gravity, is convenient in adjusting mode and simple in structure, can simultaneously adjust the front, back, left and right positions of the overweight Z-axis and the level of the overweight Z-axis, and has complete functions.
The overweight Z-axis gravity balance mechanism of the three-coordinate measuring machine has low processing requirement, convenient processing, reasonable layout, time and labor saving and convenient and simple maintenance personnel in the maintenance process.
The overweight Z-axis gravity balance mechanism of the three-coordinate measuring machine has low processing requirement and reasonable layout.
While the preferred embodiments of the present utility model have been described in detail, the present utility model is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present utility model within the knowledge of those skilled in the art.
Many other changes and modifications may be made without departing from the spirit and scope of the utility model. It is to be understood that the utility model is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (8)
1. An overweight Z axle gravity balance mechanism of three-coordinate measuring machine, its characterized in that: including first bearing frame (1), universal joint cross (2), second bearing frame (3), connecting seat (4), cylinder (5), roof (6) and overweight Z axle (7), overweight Z axle (7) are vertical to be arranged, and overweight Z axle (7) central point puts and is provided with vertical through-hole (7-1), cylinder (5) are vertical to be set up in vertical through-hole (7-1), and cylinder (5) have the one end of screw rod (5-1) upwards, and screw rod (5-1) top and connecting seat (4) bottom of cylinder (5) are fixed, and connecting seat (4) top is fixed with second bearing frame (3), and first bearing frame (1) set up directly over second bearing frame (3), one of them axle of universal joint cross (2) is installed in second bearing frame (3), and another axle of universal joint cross (2) is installed in first bearing frame (1), and first bearing frame (1) top is fixed in roof (6) lower surface, and roof (6) lower surface still are connected with overweight Z axle (7) upper top surface.
2. The overweight Z-axis weight balancing mechanism of three-coordinate measuring machine according to claim 1, wherein: the overweight Z axle (7) is the rectangular cylinder, and overweight Z axle (7) central point puts and is provided with circular vertical through-hole (7-1), and first screw hole (7-2) have been seted up to top surface on overweight Z axle (7), and first screw hole (7-2) are a plurality of, and a plurality of first screw holes (7-2) evenly interval distributes in overweight Z axle (7) top surface.
3. The overweight Z-axis weight balancing mechanism of three-coordinate measuring machine according to claim 2, wherein: the top plate (6) is a rectangular plate, a first connecting through hole (6-1) is formed in the center of the top plate (6), a second threaded hole (6-2) is formed in the periphery of the top plate (6), and the first threaded hole (7-2) and the second threaded hole (6-2) are fixedly connected through screws, so that the periphery of the lower surface of the top plate (6) is fixedly connected with the periphery of the upper top surface of the overweight Z-axis (7).
4. A three-coordinate measuring machine overweight Z-axis weight balancing mechanism according to claim 3, characterized in that: the first bearing seat (1) is composed of a first base plate (1-1) and first bosses (1-2), the number of the first bosses (1-2) is two, the two first bosses (1-2) are arranged in parallel and fixed on the lower surface of the first base plate (1-1), the two first bosses (1-2) are respectively provided with a first cross shaft installation through hole (1-2-1), two ends of one shaft of the universal joint cross shaft (2) are respectively installed in the first cross shaft installation through holes (1-2-1) of the two first bosses (1-2), the first base plate (1-1) is provided with a second connection through hole (1-1-1), and bolts penetrate through the first connection through holes (6-1) and the second connection through holes (1-1-1) to enable the tops of the first base plate (1-1) to be fixed on the center of the lower surface of the top plate (6).
5. The overweight Z-axis weight balancing mechanism of three-coordinate measuring machine according to claim 4, wherein: the second bearing block (3) is composed of a second base plate (3-1) and second bosses (3-2), the number of the second bosses (3-2) is two, the two second bosses (3-2) are arranged in parallel and fixed on the upper surface of the second base plate (3-1), the two second bosses (3-2) are respectively provided with a second cross shaft installation through hole (3-2-1), two ends of the other shaft of the universal joint cross shaft (2) are respectively installed in the second cross shaft installation through holes (3-2-1) of the second bosses (3-2), a third connection through hole (3-1-1) is formed in the second base plate (3-1), and the second bearing block (3) is fixedly connected with the connection seat (4) through bolts and nuts.
6. The overweight Z-axis weight balancing mechanism of three-coordinate measuring machine according to claim 5, wherein: the universal joint cross shaft (2) is connected into a cross shape by two cylindrical rods, and round bosses are arranged at two ends of the two cylindrical rods; the front and rear shafts of the universal joint cross shaft (2) are connected with two first cross shaft mounting through holes (1-2-1) of the first bearing seat (1), and the left and right shafts of the universal joint cross shaft (2) are connected with two second cross shaft mounting through holes (3-2-1) of the second bearing seat (3).
7. The overweight Z-axis weight balancing mechanism of three-coordinate measuring machine according to claim 1, wherein: the vertical section of the connecting seat (4) is T-shaped, a screw installation through hole (4-1) is formed in the center of the connecting seat (4), a fourth connecting through hole (4-2) is formed in the periphery of the connecting seat (4), a bolt penetrates through the third connecting through hole (3-1-1) and a fourth connecting through hole (4-2) to enable the second bearing seat (3) to be fixedly connected with the connecting seat (4), and the top of a screw (5-1) of the air cylinder (5) penetrates through the screw installation through hole (4-1) to be fixedly connected with the connecting nut.
8. The overweight Z-axis weight balancing mechanism of three-coordinate measuring machine according to claim 7, wherein: the screw mounting through hole (4-1) is a counter bore, and a nut connected with the top of the screw (5-1) is arranged in the counter bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321218052.7U CN219714618U (en) | 2023-05-19 | 2023-05-19 | Overweight Z axle gravity balance mechanism of three-coordinate measuring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321218052.7U CN219714618U (en) | 2023-05-19 | 2023-05-19 | Overweight Z axle gravity balance mechanism of three-coordinate measuring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219714618U true CN219714618U (en) | 2023-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321218052.7U Active CN219714618U (en) | 2023-05-19 | 2023-05-19 | Overweight Z axle gravity balance mechanism of three-coordinate measuring machine |
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| Country | Link |
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| CN (1) | CN219714618U (en) |
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2023
- 2023-05-19 CN CN202321218052.7U patent/CN219714618U/en active Active
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