A three-coordinate measuring machine capable of processing soft materials

Abstract

The present invention discloses a three-coordinate measuring machine capable of processing soft materials, comprising a placement table, a measuring probe and a three-axis displacement assembly, wherein the three-axis displacement assembly comprises a mounting panel, a mounting seat and an introduction slot, an introduction block is provided at the upper end of the measuring probe, and a clamping member is provided inside the mounting seat. The present invention has the following advantages and effects: the three-axis displacement assembly can drive the measuring probe to achieve three-axis position adjustment, the introduction block on the measuring probe can extend upward into the introduction slot, and the clamping member automatically clamps the introduction block to complete the clamping fixation of the measuring probe, with good stability; the probe is very convenient to install, without the need to use bolts and supporting tools to fix the measuring probe, thereby improving the installation efficiency of the measuring probe; at the same time, the clamping member can quickly release the clamping fixation of the measuring probe under the drive of an external power source, providing convenience for the removal of the measuring probe and optimizing the removal efficiency.

Description

Technical Field

[0001] The present invention relates to the field of measurement technology, in particular to a three-coordinate measuring machine capable of processing soft materials. Background Art

[0002] A coordinate measuring machine (CMM) capable of machining soft materials is a device used to accurately measure the size, shape, and geometric features of an object. It is particularly well-suited for the machining of soft materials. The primary function of a CMM is to perform precise measurements, and its core tool is typically a measuring probe.

[0003] In a CMM capable of machining soft materials, the measuring probe needs to be replaced depending on the material being measured. This is because different materials (especially soft materials) have different physical properties, such as hardness, elasticity, and surface roughness. These properties affect the contact mode of the measuring probe, measurement accuracy, and the degree of wear of the measuring probe itself.

[0004] To ensure accuracy and avoid damage, different types of measuring probes need to be selected for different soft materials. For example:

[0005] ① When the soft material to be measured is rubber, a spring-type probe or a ceramic spherical probe can be selected; the spring-type probe can adapt to the elasticity of rubber and avoid applying excessive pressure and causing permanent indentations on the surface; the ceramic probe is harder than the metal probe, but the surface is smoother and less likely to cause indentations on the rubber surface, making it suitable for higher-precision measurements.

[0006] ② When the soft material to be tested is a foam material, a spring-type or soft probe or a scanning probe can be selected; a spring-type or soft probe can adjust the pressure through a spring or other flexible design during contact to avoid compression or permanent deformation of the foam material; a scanning probe can more accurately reflect surface changes by continuously sampling along the surface of the material;

[0007] ③ When the soft material to be measured is a soft plastic material (such as polyurethane, PVC), a non-contact laser probe can be selected. For very soft plastic materials, you can consider using a laser probe or optical scanning probe for non-contact measurement to avoid material damage or surface deformation caused by contact.

[0008] ④ When the soft material to be tested is fabric, a small ball contact probe or a force sensor probe can be selected; using a smaller spherical contact can reduce the pressure on the fabric surface and avoid pressure marks; the force sensor probe can sense the contact force. When the contact force exceeds a certain preset value, the contact pressure is automatically adjusted to prevent excessive compression of the fabric.

[0009] ⑤ When the soft material to be measured is a thin film material (such as thin plastic, thin paper, etc.), a micro-probe can be selected. This probe is suitable for measuring thin film soft materials and can ensure that the pressure during measurement is very small, reducing the impact on the film.

[0010] In summary, selecting the appropriate measuring probe in a CMM capable of machining soft materials is crucial for ensuring measurement accuracy and protecting the workpiece surface. However, existing CMMs for machining soft materials typically use bolts to secure the measuring probe. Removing the old probe and replacing it with a new one requires tools (such as screwdrivers and wrenches) to loosen and tighten the bolts. This increases operational time and workload, especially in work environments where frequent probe changes are required. Furthermore, if the bolts are not tightened sufficiently or errors occur during installation, the measuring probe may become unstable or loose, affecting measurement accuracy. Even if the bolts are not significantly loosened after tightening, slight deviations in the measuring probe can introduce measurement errors. Improper operation, such as overtightening the bolts, can damage the bolts and, in extreme cases, the measuring probe. Bolted probe replacement is not suitable for fast-paced production environments, especially where frequent probe changes are required. The operation is not only time-consuming but also prone to errors, making it difficult to quickly and accurately switch between measuring probes. Therefore, it is necessary to optimize the assembly method of the measuring probe, improve the replacement efficiency of the measuring probe, and ensure the stability and safety of the measuring probe after it is fixed to adapt to the fast-paced production environment. Summary of the Invention

[0011] The purpose of the present invention is to provide a three-coordinate measuring machine capable of processing soft materials, so as to solve the problems raised in the background technology.

[0012] The above technical objectives of the present invention are achieved through the following technical solutions:

[0013] A three-coordinate measuring machine capable of processing soft materials, comprising:

[0014] A placement table for horizontal placement of machinable soft materials;

[0015] a measuring probe for measuring the machinable soft material placed on the placement table; and

[0016] A three-axis shift component that drives the measuring probe to achieve three-axis position adjustment; wherein,

[0017] The three-axis displacement assembly includes a mounting panel, a mounting seat fixedly provided at the bottom of the mounting panel by screws, and an introduction slot provided at the lower end of the mounting seat; an introduction block fixedly provided at the upper end of the measuring probe, the introduction block being able to extend upward into the introduction slot; a pressing member is provided inside the mounting seat, the pressing member being able to automatically press the introduction block extending into the introduction slot to complete the compression-type fixation of the measuring probe;

[0018] The pressing member can quickly release the pressing fixation of the measuring probe under the drive of an external power source.

[0019] The further configuration is: the three-axis shift assembly includes two support columns, and the upper ends of the two support columns are jointly provided with a main guide column arranged along the left and right directions, and two first linear guide rails arranged along the left and right directions are fixedly provided on the front end faces of the main guide columns, and the two first linear guide rails are respectively slidably equipped with a first slider, and the front end faces of the two first sliders are fixedly provided with the same front end panel; the upper end of the main guide column is fixedly provided with a first linear rack arranged along the left and right directions, the upper end of the front end panel is fixedly provided with a first motor, and the output shaft of the first motor is fixedly provided with a first gear meshing with the first linear rack.

[0020] The further configuration is: a front end frame is fixedly provided on the front end panel, the interior of the front end frame is a hollow structure and is penetrated by auxiliary guide columns arranged in the up-down direction, second linear guide rails arranged in the up-down direction are fixedly provided on opposite sides of the auxiliary guide columns, and second sliders are fixed on the inner walls on opposite sides of the front end frame to form a sliding fit with the two second linear guide rails respectively; a second linear rack arranged in the up-down direction is also fixedly provided on the auxiliary guide column, a second motor is fixedly provided on the rear end of the front end panel, and a second gear meshing with the second linear rack is fixedly provided on the output shaft of the second motor.

[0021] The further configuration is as follows: a lower end frame is fixedly provided at the lower end of the auxiliary guide column, the interior of the lower end frame is a hollow structure and is penetrated by sub-guide columns arranged along the front-to-back direction, third linear guide rails arranged along the front-to-back direction are fixedly provided on opposite sides of the sub-guide column, and third sliders are fixed on the inner walls on opposite sides of the lower end frame, respectively forming a sliding match with the two third linear guide rails; a third linear rack arranged along the front-to-back direction is also fixedly provided on the sub-guide column, a third motor is fixedly provided on the side of the lower end frame, and a third gear meshing with the third linear rack is fixedly provided on the output shaft of the third motor;

[0022] The installation panel is fixed to the lower end of the lower end frame.

[0023] Further configuration is: a regular square cavity is opened in the right half of the mounting seat, the pressing member includes a pressing inner shell, and the pressing inner shell is located in the square cavity;

[0024] A compression inner cavity is provided inside the compression inner shell, a compression block and a compression spring are provided in the compression inner cavity, the compression block can move left and right in the compression inner cavity, the compression spring applies a compression force to the compression block to move leftward, the left end of the compression inner cavity is open and communicates with the introduction groove; a compression concave surface is provided at the right end of the measuring probe, and the compression block will extend into the compression concave surface under the compression force to complete the compression fixation of the measuring probe;

[0025] The lower end of the left side of the pressing block is provided with a retreat slope.

[0026] The further configuration is as follows: the upper and lower ends of the right side of the pressing block are fixed with traveling arms, and the right ends of the two traveling arms are fixed with the same first retraction block; the upper and lower ends of the right side of the pressing block are fixed with first extension sections, and the upper and lower ends of the left side of the first retraction block are fixed with second extension sections, and the two first extension sections and the two second extension sections are respectively connected to the corresponding traveling arms and fixed by multiple screws;

[0027] The compression inner cavity is provided with an inner seat fixed to the compression inner shell by screws, and the compression spring is compressed and arranged between the inner seat and the compression block;

[0028] The inner seat and the first retraction block are both provided with a notch with a semicircular cross-section on the side facing each other, and when the inner seat and the first retraction block collide, the notch between the two will form a closed first retraction cavity; supplying air to the first retraction cavity can push the clamping block to move to the right and make the clamping block retract into the clamping inner cavity.

[0029] A further configuration is that the compression inner shell can move up and down in the square cavity; a main insert is provided in the square cavity, fixed to the mounting seat by screws, and a short-range spring is compressed between the main insert and the compression inner shell. The short-range spring applies a downward thrust to the compression inner shell, and the compression inner shell will conflict with the lower wall of the square cavity under normal circumstances.

[0030] The further configuration is that: a synchronous follow-up block is fixedly provided on the left side of the upper end of the compression inner shell by screws;

[0031] The synchronous follow-up block extends upward, and a second retraction block is fixed at its upper end by screws, and the second retraction block is always located above the main insert; the main insert and the second retraction block are both provided with a notch with a semicircular cross-section on the opposite side, and when the main insert and the second retraction block collide, the notch between the two will form a closed second retraction cavity; supplying air into the second retraction cavity can push the compression inner shell to move upward and drive the measuring probe fixed by the compression block to move upward together.

[0032] Further configuration is as follows: a first internal tube is provided in the inner seat and is vertically arranged along the front-to-back direction; the front end of the first internal tube extends to the front end surface of the mounting seat; the front end surface of the mounting seat is provided with a window area covering the vertical movement path of the first internal tube; a first inner channel is provided in the inner seat to connect the first internal tube with the first retraction cavity;

[0033] A second inner tube is provided in the main insert and is arranged vertically in the front-to-back direction. The front end of the second inner tube extends to the front end surface of the mounting seat. The front end surface of the mounting seat is provided with an opening for exposing the second inner tube. A second inner channel is provided in the main insert to connect the second inner tube with the second retreat cavity.

[0034] The front end surface of the mounting seat is fixedly provided with a first air supply interface and a second air supply interface. The first air supply interface and the first internal pipe are connected, as are the second air supply interface and the second internal pipe, respectively, via external pipes.

[0035] The further configuration is: a quick-release slot located above the introduction slot is provided inside the mounting seat, a quick-release seat is fixed in the quick-release slot by a screw, a quick-release inner cavity is provided inside the quick-release seat, the lower end of the quick-release inner cavity is communicated with the introduction slot, a quick-release top block is provided in the quick-release inner cavity, and the quick-release top block can move up and down in the quick-release inner cavity; a baffle is fixedly provided at the upper end of the quick-release inner cavity, a quick-release spring is compressed between the baffle and the quick-release top block, and the quick-release spring applies a downward thrust to the quick-release top block; two limiting ropes are provided between the baffle and the quick-release top block.

[0036] The present invention has the following beneficial effects:

[0037] 1. In the present invention, the three-axis shift assembly can drive the measuring probe to achieve three-axis position adjustment, so that the measuring probe can perform measurement work on the machinable soft material placed on the placement table; the lead-in block on the measuring probe can extend upward into the lead-in groove, and the clamping member automatically compresses the lead-in block to complete the clamping fixation of the measuring probe with good stability; the installation of the probe is very convenient, and there is no need to use bolts and supporting tools to fix the measuring probe, thereby improving the installation efficiency of the measuring probe; at the same time, the clamping member can quickly release the clamping fixation of the measuring probe under the drive of an external power source, which provides convenience for the removal of the measuring probe and optimizes the removal efficiency.

[0038] 2. In the present invention, the left-right position of the measuring probe is adjusted based on the sliding fit of the first slider on the first linear guide rail, and the first linear rack, the first motor and the first gear provide the driving force in the left-right direction; the up-down position of the measuring probe is adjusted based on the sliding fit of the second slider on the second linear guide rail, and the second linear rack, the second motor and the second gear provide the driving force in the up-down direction; the front-back position of the measuring probe is adjusted based on the sliding fit of the third slider on the third linear guide rail, and the third linear rack, the third motor and the third gear provide the driving force in the up-down and front-back directions; thereby, the position adjustment of the measuring probe in the three-axis direction is realized.

[0039] 3. In the present invention, the compression block can extend into the compression recess under the compressive force exerted by the compression spring, completing the compression fixation of the measuring probe. This dual fixation of extension and compression effectively improves the stability of the measuring probe after fixation. The provision of the retraction slope allows the compression block to automatically retract into the compression cavity during the insertion of the lead-in block into the lead-in slot, ensuring a smooth and continuous upward movement of the lead-in block.

[0040] 4. In the present invention, the two traveling arms can allow the first retraction block and the clamping block to form a community, so that when the first retraction block is subsequently pushed to the right, the clamping block can be driven to move right and retract together; the setting of the first extension section and the second extension section can facilitate the installation of the screws; the setting of the embedded seat can not only abut against the first retraction block to limit the position of the clamping block, but also cooperate with the first retraction block to form a first retraction cavity, and supply air to the first retraction cavity, which can push the clamping block to move right and make the clamping block retract into the clamping inner cavity.

[0041] 5. In the present invention, the compression inner shell is movable, and the square cavity provides space for the compression inner shell to move up and down; under the thrust of the short-range spring, the compression inner shell will conflict with the lower wall of the square cavity under normal conditions.

[0042] 6. In the present invention, the follow-up block can allow the compression inner shell and the second retraction block to form a community, so that when the second retraction block is pushed up, the compression inner shell can be driven to move up and back together; air is supplied to the second retraction chamber, which can push the compression inner shell up and drive the measuring probe fixed by the compression block to move up together, thereby completing the upward movement of the measuring probe; in this way, the distance between the measuring probe and the placement table can be quickly expanded without controlling the three-axis shift assembly, making it convenient for the operator to replace the same material of machinable soft material; if the three-axis shift assembly is controlled by PLC, not only is the operation troublesome, but the height of the measuring probe also needs to be accurately adjusted to make the distance between it and the placement table meet the set value.

[0043] 7. In the present invention, the first air supply interface and the second air supply interface are provided on the front end surface of the mounting seat to supply air to the first retraction cavity and the second retraction cavity respectively. The two independent interfaces are convenient for independent control.

[0044] 8. In the present invention, the quick-release top block can always keep moving downward under the thrust of the quick-release spring. When the pressing block is separated from the pressing concave surface, the quick-release top block can quickly push down the introduction block, which is convenient, labor-saving and fast to complete the removal of the measuring probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 Schematic diagram of the structure of the embodiment (without the mounting base and the measuring probe);

[0046] Figure 2 Schematic diagram of the structure of the embodiment (without support column, placement table, mounting base and measurement probe);

[0047] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0048] Figure 4 for Figure 2 Enlarged view of middle part B;

[0049] Figure 5 This is a schematic diagram of the assembly structure of the mounting base and the measuring probe in the embodiment;

[0050] Figure 6 for Figure 5 Enlarged view of the middle C section;

[0051] Figure 7 for Figure 6 Enlarged view of part D in the middle.

[0052] In the figure: 11, placement table; 12, installation panel; 13, mounting seat; 131, introduction groove; 21, measuring probe; 22, introduction block; 221, pressing recessed surface; 31, support column; 32, main guide column; 33, first linear guide rail; 34, first slider; 35, front panel; 36, first linear rack; 37, first motor; 38, front frame; 39, auxiliary guide column; 41, second linear guide rail; 42, second slider; 43, second motor; 44, second gear; 45, lower end frame; 46, sub-guide column; 47, third linear guide rail; 48, third slider; 491, third linear rack; 492, third motor; 493, third gear; 50, square cavity; 51, pressing inner shell; 52, Compressing inner cavity; 53. Compressing block; 531. Retraction slope; 54. Compression spring; 55. Traveling arm; 56. First retraction block; 571. First extension section; 572. Second extension section; 58. Inner seat; 59. First retraction cavity; 61. Main insert; 62. Short-range spring; 63. Synchronous follow-up block; 65. Second retraction block; 66. Second retraction cavity; 71. First inner tube; 72. First inner channel; 73. Second inner tube; 74. Second inner channel; 75. First air supply interface; 76. Second air supply interface; 81. Quick-release slot; 82. Quick-release seat; 83. Quick-release top block; 831. Second silicone pad; 84. Baffle; 85. Quick-release spring; 86. Limiting rope; 91. Protective stacking block; 92. First silicone pad. DETAILED DESCRIPTION

[0053] The present invention will be further described in detail below with reference to the accompanying drawings.

[0054] As attached Figures 1 to 7 As shown;

[0055] This embodiment discloses a three-coordinate measuring machine capable of processing soft materials, comprising:

[0056] A placement table 11 for horizontal placement of machinable soft materials;

[0057] a measuring probe 21 for measuring a machinable soft material placed on the placement table 11; and

[0058] A three-axis displacement component that drives the measuring probe 21 to achieve three-axis position adjustment; wherein,

[0059] The three-axis displacement assembly includes a mounting panel 12, a mounting seat 13 fixed to the bottom of the mounting panel 12 by screws, and an introduction slot 131 defined at the lower end of the mounting seat 13; an introduction block 22 fixed to the upper end of the measuring probe 21, which can extend upward into the introduction slot 131; a clamping member disposed within the mounting seat 13, which can automatically compress the introduction block 22 inserted into the introduction slot 131, thereby completing the compression-type fixation of the measuring probe 21;

[0060] The pressing member can quickly release the pressing fixation of the measuring probe 21 under the drive of an external power source.

[0061] It should be supplemented that the power source in this embodiment is a fixed air pump, which is connected to an air pipe.

[0062] Among them, the three-axis shift assembly includes two support columns 31, and the upper ends of the two support columns 31 are jointly provided with a main guide column 32 arranged along the left and right directions. Two first linear guide rails 33 arranged along the left and right directions are fixedly provided on the front end surface of the main guide column 32, and the two first linear guide rails 33 are respectively slidably equipped with a first slider 34, and the front end surfaces of the two first sliders 34 are fixedly provided with the same front end panel 35; the upper end of the main guide column 32 is fixedly provided with a first linear rack 36 arranged along the left and right directions, and the upper end of the front end panel 35 is fixedly provided with a first motor 37, and the output shaft of the first motor 37 is fixedly provided with a first gear meshing with the first linear rack 36.

[0063] Among them, a front end frame 38 is fixedly provided on the front end panel 35. The interior of the front end frame 38 is a hollow structure and is penetrated by auxiliary guide columns 39 arranged along the up-down direction. Second linear guide rails 41 arranged along the up-down direction are fixedly provided on opposite sides of the auxiliary guide columns 39. Second sliders 42 that respectively form a sliding fit with the two second linear guide rails 41 are fixed on the inner walls on opposite sides of the front end frame 38; a second linear rack arranged along the up-down direction is also fixedly provided on the auxiliary guide column 39, and a second motor 43 is fixedly provided at the rear end of the front end panel 35. A second gear 44 that meshes with the second linear rack is fixedly provided on the output shaft of the second motor 43.

[0064] Among them, the lower end of the auxiliary guide column 39 is fixedly provided with a lower end frame 45, the interior of the lower end frame 45 is a hollow structure and is penetrated by a sub-guide column 46 arranged along the front-to-back direction, and the opposite sides of the sub-guide column 46 are fixedly provided with a third linear guide rail 47 arranged along the front-to-back direction, and the inner walls on the opposite sides of the lower end frame 45 are fixed with third sliders 48 respectively forming a sliding fit with the two third linear guide rails 47; the sub-guide column 46 is also fixedly provided with a third linear rack 491 arranged along the front-to-back direction, and a third motor 492 is fixedly provided on the side of the lower end frame 45, and a third gear 493 meshing with the third linear rack 491 is fixedly provided on the output shaft of the third motor 492;

[0065] The mounting panel 12 is fixed to the lower end of the lower end frame 45 .

[0066] It should be supplemented that the first motor 37 , the second motor 43 and the third motor 492 can be controlled by a PLC.

[0067] The right half of the mounting seat 13 is provided with a regular square cavity 50, and the pressing member includes a pressing inner shell 51, which is located in the square cavity 50;

[0068] A compression cavity 52 is defined within the compression inner shell 51. A compression block 53 and a compression spring 54 are disposed within the compression cavity 52. ​​The compression block 53 can move left and right within the compression cavity 52. ​​The compression spring 54 applies a compressive force to the compression block 53 to move leftward. The left end of the compression cavity 52 is open and communicates with the introduction groove 131. A compression recessed surface 221 is defined at the right end of the measuring probe 21. The compression block 53 extends into the compression recessed surface 221 under the compressive force, thereby completing the compression fixation of the measuring probe 21.

[0069] A retraction slope 531 is formed at the lower end of the left side of the pressing block 53 .

[0070] Among them, the upper and lower ends of the right side of the pressing block 53 are fixed with traveling arms 55, and the right ends of the two traveling arms 55 are fixed with the same first retracting block 56; the upper and lower ends of the right side of the pressing block 53 are fixed with first extension sections 571, and the upper and lower ends of the left side of the first retracting block 56 are fixed with second extension sections 572. The two first extension sections 571 and the two second extension sections 572 are respectively connected to the corresponding traveling arms 55 and fixed by multiple screws;

[0071] An inner seat 58 fixed to the inner shell 51 by screws is provided in the compression cavity 52, and a compression spring 54 is compressed and provided between the inner seat 58 and the compression block 53;

[0072] A notch with a semicircular cross-section is provided on the side facing each other of the embedded seat 58 and the first retraction block 56, and when the embedded seat 58 and the first retraction block 56 collide with each other, the notch between the two will form a closed first retraction cavity 59; supplying air to the first retraction cavity 59 can push the clamping block 53 to move right and make the clamping block 53 retract into the clamping inner cavity 52.

[0073] It should be added that the first retraction block 56 can respectively conflict with the inner seat 58 and the right wall of the pressing cavity 52 to limit the position of the pressing block 53. At the same time, the first retraction block 56 will conflict with the right wall of the pressing cavity 52 to prevent the pressing spring 54 from being over-compressed and losing its elastic force.

[0074] Among them, the compression inner shell 51 can move in the up and down directions in the square cavity 50; a main insert 61 fixed to the mounting seat 13 by screws is provided in the square cavity 50, and a short-range spring 62 is compressed between the main insert 61 and the compression inner shell 51. The short-range spring 62 applies a downward thrust to the compression inner shell 51, and the compression inner shell 51 will conflict with the lower wall of the square cavity 50 under normal circumstances.

[0075] Among them, a synchronous follow-up block 63 is fixed on the left side of the upper end of the compression inner shell 51 by screws;

[0076] The synchronous follow-up block 63 extends upward, and a second retraction block 65 is fixed at its upper end by screws. The second retraction block 65 is always located above the main insert 61; the main insert 61 and the second retraction block 65 are provided with a notch with a semicircular cross-section on the opposite side, and when the main insert 61 and the second retraction block 65 collide, the notch between the two will form a closed second retraction cavity 66; supplying air to the second retraction cavity 66 can push the compression inner shell 51 to move upward and drive the measuring probe 21 clamped and fixed by the compression block 53 to move upward together.

[0077] It should be added that a protective stack 91 is fixedly provided at the lower end of the main insert 61, and the short-range spring 62 is sleeved on the outer periphery of the protective stack 91. A first silicone pad 92 that acts as a buffer is fixedly provided at the lower end of the protective stack 91; the first silicone pad 92 will conflict with the upper end of the compression inner shell 51 to prevent the short-range spring 62 from being over-compressed and losing its elastic force.

[0078] The inner seat 58 is provided with a first inner tube 71 vertically arranged in the front-to-back direction. The front end of the first inner tube 71 extends to the front end surface of the mounting seat 13. The front end surface of the mounting seat 13 is provided with a window area covering the vertical movement path of the first inner tube 71. The inner seat 58 is provided with a first inner channel 72 connecting the first inner tube 71 with the first retraction cavity 59.

[0079] A second internal tube 73 is disposed within the main insert 61 and is arranged perpendicularly along the front-to-back direction. The front end of the second internal tube 73 extends to the front end surface of the mounting seat 13. The front end surface of the mounting seat 13 defines an opening through which the second internal tube 73 is exposed. A second internal channel 74 is defined within the main insert 61 to connect the second internal tube 73 with the second retracting cavity 66.

[0080] A first air supply interface 75 and a second air supply interface 76 are fixedly provided on the front end surface of the mounting seat 13 . The first air supply interface 75 and the first internal pipe 71 are connected, and the second air supply interface 76 and the second internal pipe 73 are connected respectively through external pipes.

[0081] Among them, a quick-release groove 81 located above the introduction groove 131 is provided inside the mounting seat 13, and a quick-release seat 82 is fixed in the quick-release groove 81 by screws. A quick-release inner cavity is provided inside the quick-release seat 82, and the lower end of the quick-release inner cavity is connected to the introduction groove 131. A quick-release top block 83 is provided in the quick-release inner cavity, and the quick-release top block 83 can move up and down in the quick-release inner cavity; a baffle 84 is fixedly provided at the upper end of the quick-release inner cavity, and a quick-release spring 85 is compressed between the baffle 84 and the quick-release top block 83, and the quick-release spring 85 applies a downward thrust to the quick-release top block 83; two limiting ropes 86 are provided between the baffle 84 and the quick-release top block 83.

[0082] It should be supplemented that the limiting rope 86 does not have elastic force.

[0083] It should be supplemented that a second silicone pad 831 is provided at the lower end of the quick-release top block 83 to serve as a buffer.

[0084] Assembly process of measuring probe 21:

[0085] 1. Push the introduction block 22 at the upper end of the measuring probe 21 into the introduction groove 131; during this process, as the introduction block 22 moves upward, the introduction block 22 will contact the retraction slope 531, and along the retraction slope 531, the clamping block 53 will be forced and automatically retract into the clamping inner cavity 52, making the upward movement of the introduction block 22 smooth and continuous.

[0086] 2. When the introduction block 22 moves up to the introduction groove 131, the clamping block 53 will be aligned with the position of the clamping recessed surface 221. Then, the clamping block 53 will extend into the clamping recessed surface 221 under the clamping force applied by the clamping spring 54, completing the clamping fixation of the measuring probe 21.

[0087] Disassembly process of measuring probe 21:

[0088] 1. Insert the air pipe on the fixed air pump into the first air supply interface 75. The air will enter the first retraction chamber 59 through the first air supply interface 75, the corresponding outer tube, the first inner tube 71, and the first inner channel 72 in sequence. The first retraction chamber 59 will continue to expand as the air is continuously supplied, thereby pushing the compression block 53 to move right and causing the compression block 53 to retract into the compression inner chamber 52.

[0089] 2. The pressing block 53 retracts into the pressing inner cavity 52 and separates from the pressing recessed surface 221. At this time, the quick-release top block 83 moves downward under the thrust of the quick-release spring 85. The quick-release top block 83 can quickly push out the introduction block 22, which has the advantages of convenience and labor saving, and can quickly complete the removal of the measuring probe 21.

[0090] When the machinable soft material of the same material needs to be replaced (no need to replace the measuring probe 21):

[0091] 1. Insert the air pipe on the fixed air pump into the second air supply interface 76. Air will enter the second retraction chamber 66 through the second air supply interface 76, the corresponding outer tube, the second inner tube 73, and the second inner channel 74 in sequence. The second retraction chamber 66 will continue to expand as air is continuously supplied, thereby pushing the second retraction block 65 upward and simultaneously driving the compression inner shell 51 upward and retracted. Since the measuring probe 21 is in a state of being compressed by the compression block 53, the measuring probe 21 will also move upward.

[0092] 2. After the measuring probe 21 is moved upward, the distance between the measuring probe 21 and the placement table 11 can be quickly expanded without controlling the three-axis shift assembly, which makes it convenient for the operator to replace the machinable soft material of the same material without the machinable soft material contacting the measuring probe 21. If the three-axis shift assembly is controlled by PLC, it will not only be troublesome to operate, but also require the precise readjustment of the height of the measuring probe 21 so that the distance between it and the machinable soft material on the placement table 11 meets the set value.

[0093] 3. After replacing the machinable soft material with the same material, pull out the air pipe and the air in the second retraction chamber 66 will be pressed out; the inner shell 51 will be pressed down again under the thrust of the short-range spring 62 until it connects with the lower wall of the square cavity 50; at this time, the measuring probe 21 will return to its original position; the step of re-precisely adjusting the height of the measuring probe 21 is eliminated, thereby improving efficiency.

[0094] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A three-coordinate measuring machine capable of processing soft materials, characterized in that: Includes: A placement table (11) for horizontally placing machinable soft materials; a measuring probe (21) for performing measurement work on a machinable soft material placed on the placement table (11); and A three-axis displacement component is provided to drive the measuring probe (21) to realize three-axis position adjustment; wherein, The three-axis displacement assembly includes a mounting panel (12), a mounting seat (13) is fixedly provided at the bottom of the mounting panel (12) by screws, and an introduction groove (131) is provided at the lower end of the mounting seat (13); an introduction block (22) is fixedly provided at the upper end of the measuring probe (21), and the introduction block (22) can extend upward into the introduction groove (131); a pressing member is provided inside the mounting seat (13), and the pressing member can automatically press the introduction block (22) extended into the introduction groove (131) to complete the compression-type fixation of the measuring probe (21); The pressing member can quickly release the pressing fixation of the measuring probe (21) under the drive of an external power source; A regular square cavity (50) is formed in the right half of the mounting seat (13), and the pressing member includes a pressing inner shell (51), and the pressing inner shell (51) is located in the square cavity (50); The compression inner shell (51) is provided with a compression inner cavity (52), and a compression block (53) and a compression spring (54) are provided in the compression inner cavity (52). The compression block (53) can move in the left and right directions in the compression inner cavity (52), and the compression spring (54) applies a compression force to the compression block (53) to move leftward. The left end of the compression inner cavity (52) is open and communicates with the introduction groove (131); the right end of the measuring probe (21) is provided with a compression recessed surface (221), and the compression block (53) will extend into the compression recessed surface (221) under the compression force to complete the compression fixation of the measuring probe (21); The lower end of the left side of the pressing block (53) is provided with a retreat slope (531); The upper and lower ends of the right side of the pressing block (53) are fixed with a traveling arm (55), and the right ends of the two traveling arms (55) are fixed with the same first retraction block (56); the upper and lower ends of the right side of the pressing block (53) are fixed with a first extension section (571), and the upper and lower ends of the left side of the first retraction block (56) are fixed with a second extension section (572), and the two first extension sections (571) and the two second extension sections (572) are respectively connected to the corresponding traveling arms (55) and fixed by multiple screws; The compression inner cavity (52) is provided with an inner seat (58) fixed to the compression inner shell (51) by screws, and the compression spring (54) is compressed and arranged between the inner seat (58) and the compression block (53); The inner seat (58) and the first retraction block (56) are both provided with a notch with a semicircular cross-section on one side facing each other, and when the inner seat (58) and the first retraction block (56) collide with each other, the notches between the two will form a closed first retraction cavity (59); supplying air into the first retraction cavity (59) can push the pressing block (53) to move right and make the pressing block (53) retract into the pressing inner cavity (52); The compression inner shell (51) can move in the vertical direction in the square cavity (50); a main insert (61) fixed to the mounting seat (13) by screws is provided in the square cavity (50); a short-range spring (62) is provided between the main insert (61) and the compression inner shell (51) for compression; the short-range spring (62) applies a downward thrust to the compression inner shell (51); the compression inner shell (51) will contact the lower wall of the square cavity (50) under normal conditions; A synchronous follow-up block (63) is fixed on the left side of the upper end of the compression inner shell (51) by screws; The synchronous follow-up block (63) extends upward, and a second retraction block (65) is fixed at its upper end by screws, and the second retraction block (65) is always located above the main insert (61); the main insert (61) and the second retraction block (65) are both provided with a notch with a semicircular cross-section on the opposite side, and when the main insert (61) and the second retraction block (65) collide, the notch between the two forms a closed second retraction cavity (66); air is supplied to the second retraction cavity (66), which can push the compression inner shell (51) to move upward and drive the measuring probe (21) fixed by the compression block (53) to move upward together.

2. The three-coordinate measuring machine capable of machining soft materials according to claim 1, characterized in that: The three-axis shift assembly includes two support columns (31), the upper ends of the two support columns (31) are commonly provided with a main guide column (32) arranged in the left-right direction, and the front end surfaces of the main guide columns (32) are fixedly provided with two first linear guide rails (33) arranged in the left-right direction, and the two first linear guide rails (33) are respectively slidably provided with a first slider (34), and the front end surfaces of the two first sliders (34) are fixedly provided with the same front end panel (35); the upper ends of the main guide columns (32) are fixedly provided with a first linear rack (36) arranged in the left-right direction, and the upper end of the front end panel (35) is fixedly provided with a first motor (37), and the output shaft of the first motor (37) is fixedly provided with a first gear meshing with the first linear rack (36).

3. The three-coordinate measuring machine capable of machining soft materials according to claim 2, characterized in that: A front frame (38) is fixedly provided on the front panel (35), the interior of the front frame (38) is a hollow structure and is penetrated by auxiliary guide columns (39) arranged in the up-down direction, and second linear guide rails (41) arranged in the up-down direction are fixedly provided on opposite sides of the auxiliary guide columns (39), and second sliders (42) are fixedly provided on the inner walls of the opposite sides of the front frame (38) and are respectively slidably matched with the two second linear guide rails (41); a second linear rack arranged in the up-down direction is also fixedly provided on the auxiliary guide columns (39), and a second motor (43) is fixedly provided at the rear end of the front panel (35), and a second gear (44) meshing with the second linear rack is fixedly provided on the output shaft of the second motor (43).

4. The three-coordinate measuring machine capable of machining soft materials according to claim 3, characterized in that: The lower end of the auxiliary guide column (39) is fixedly provided with a lower end frame (45), the interior of the lower end frame (45) is a hollow structure and is penetrated by a sub-guide column (46) arranged in the front-back direction, and the opposite sides of the sub-guide column (46) are fixedly provided with a third linear guide rail (47) arranged in the front-back direction, and the inner walls of the opposite sides of the lower end frame (45) are fixed with a third slider (48) respectively forming a sliding match with the two third linear guide rails (47); the sub-guide column (46) is also fixedly provided with a third linear rack (491) arranged in the front-back direction, and a third motor (492) is fixedly provided on the side of the lower end frame (45), and a third gear (493) meshing with the third linear rack (491) is fixedly provided on the output shaft of the third motor (492); The installation panel (12) is fixed to the lower end of the lower end frame (45).

5. The three-coordinate measuring machine capable of machining soft materials according to claim 1, characterized in that: The inner seat (58) is provided with a first inner tube (71) vertically arranged along the front-to-back direction, the front end of the first inner tube (71) extends to the front end surface of the mounting seat (13), and the front end surface of the mounting seat (13) is provided with a window area covering the moving path of the first inner tube (71) in the up-down direction; the inner seat (58) is provided with a first inner channel (72) connecting the first inner tube (71) with the first retraction cavity (59); A second inner tube (73) vertically arranged along the front-to-back direction is provided in the main insert (61), the front end of the second inner tube (73) extends to the front end surface of the mounting seat (13), and the front end surface of the mounting seat (13) is provided with an opening for exposing the second inner tube (73); a second inner channel (74) is provided in the main insert (61) to connect the second inner tube (73) with the second retreat cavity (66); A first air supply interface (75) and a second air supply interface (76) are fixedly provided on the front end surface of the mounting seat (13); the first air supply interface (75) and the first internal pipe (71), and the second air supply interface (76) and the second internal pipe (73) are respectively connected via external pipes.

6. The three-coordinate measuring machine capable of machining soft materials according to claim 1, characterized in that: The mounting seat (13) is provided with a quick-release groove (81) located above the introduction groove (131), a quick-release seat (82) is fixedly provided in the quick-release groove (81) by screws, a quick-release inner cavity is provided in the quick-release seat (82), the lower end of the quick-release inner cavity is communicated with the introduction groove (131), a quick-release top block (83) is provided in the quick-release inner cavity, and the quick-release top block (83) can move up and down in the quick-release inner cavity; a baffle (84) is fixedly provided at the upper end of the quick-release inner cavity, a quick-release spring (85) is compressed between the baffle (84) and the quick-release top block (83), and the quick-release spring (85) applies a downward thrust to the quick-release top block (83); two limiting ropes (86) are provided between the baffle (84) and the quick-release top block (83).

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