A three-coordinate measuring head replacement device

Abstract

The utility model discloses a three -coordinate measuring head replacement device relates to the field of measuring equipment technology, it includes measuring machine, one side of measuring machine is equipped with the metal frame, one side of metal frame is equipped with a plurality of installation seat for placing measuring head, and a plurality of installation seat sets up along the length direction of metal frame, and the lower end portion fixed of measuring machine is equipped with the connecting block for connecting measuring head, and the upper end portion of measuring head is equipped with the connecting groove, and the lower end portion fixed of connecting block is equipped with the connecting rod, and the connecting rod is inserted in the connecting groove, and the connecting groove is fixed with the lug, and the upper end portion of connecting rod is equipped with the recess, when installing measuring head, the lug is inserted in the recess, and is connected with the recess inner wall, and the connecting groove is equipped with the push element, and the push element is used for pushing the lug to enter the recess. The application has the effect of improving the measuring efficiency of spare part.

Description

Technical Field

[0001] This utility model relates to the field of measuring equipment technology, and in particular to a coordinate measuring head replacement device. Background Technology

[0002] In the field of mechanical manufacturing and inspection, the dimensional accuracy of parts is crucial. With the continuous development of industry, the precision requirements for parts are increasing, necessitating more accurate and efficient inspection equipment and methods. Coordinate measuring machines (CMMs), as high-precision measuring devices, have been widely used in industrial inspection. They can accurately measure the three-dimensional dimensions of parts, providing strong support for product quality control. The development of CMMs has made the inspection of complex-shaped parts more accurate and convenient, greatly improving production efficiency and product quality, and driving the manufacturing industry towards high precision and high quality.

[0003] During the use of a coordinate measuring machine (CMM), it is often necessary to replace the measuring head to meet different measurement needs. This replacement is usually done manually, requiring the operator to remove the old measuring head from the machine and install the new one. In this process, the operator must first carefully observe the connection between the measuring head and the CMM, removing the old measuring head. Then, the new measuring head must be accurately aligned with its installation position on the CMM.

[0004] Regarding the aforementioned technologies, the manual replacement of the measuring head is a highly repetitive process. Operators must maintain fixed postures such as bending over and precise alignment for extended periods, keeping their muscles in a state of constant tension, which greatly increases physical exertion and labor intensity. Prolonged repetitive operations can easily lead to physical and mental fatigue for operators, resulting in decreased attention, slower reaction times, and ultimately affecting the measurement efficiency of the equipment. Utility Model Content

[0005] To improve the measurement efficiency of parts, this application provides a coordinate measuring head replacement device.

[0006] This application provides a coordinate measuring head replacement device, which adopts the following technical solution: A coordinate measuring head replacement device includes a measuring machine. A metal frame is provided on one side of the measuring machine, and several mounting seats for placing measuring heads are provided on the same side of the metal frame. The mounting seats are arranged along the length of the metal frame. A connecting block for connecting the measuring head is fixed at the lower end of the measuring machine. A connecting groove is opened at the upper end of the measuring head. A connecting rod is fixed at the lower end of the connecting block and inserted into the connecting groove. A protrusion is fixed in the connecting groove. A groove is opened at the upper end of the connecting rod. When installing the measuring head, the protrusion is inserted into the groove and engages with the inner wall of the groove. A pushing member is provided in the connecting groove to push the protrusion into the groove.

[0007] By adopting the above technical solution, the mounting base supports the measuring head, realizing the centralized storage and orderly placement of multiple measuring heads. When it is necessary to replace the measuring head, simply insert the connecting rod into the connecting groove, and the pusher pushes the protrusion into the groove to complete the installation. When disassembling, simply operate the pusher to release the snap-fit ​​to remove the measuring head, which shortens the replacement time, increases the replacement speed, and thus improves the measurement efficiency of parts.

[0008] Optionally, the pushing component includes a sliding plate and an elastic element. The sliding plate is located in the connecting groove and is slidably connected to the inner wall of the connecting groove in the vertical direction. The sliding plate is in close contact with the connecting rod. The elastic element is fixed between the sliding plate and the inner wall of the connecting groove. In its natural state, the elastic element drives the sliding plate to abut against the connecting rod.

[0009] By adopting the above technical solution, the elastic element drives the slide plate to slide vertically along the connecting groove and closely abut against the connecting rod under its own elastic force in its natural state, forming a continuous pre-tightening pressure. This allows the slide plate to adapt to the insertion position of the connecting rod under the action of elastic force during the insertion of the connecting rod into the connecting groove, adjust the fitting state in real time, and push the protrusion to form a tight engagement with the inner wall of the groove, thereby improving the stability of the device.

[0010] Optionally, the metal frame includes two base plates and several support plates. The two base plates are located on one side of the measuring machine, and the several support plates are located at the upper part of the base plates. A telescopic rod is provided between the support plates and the two base plates. The telescopic rod is fixedly connected to the support plates, and the telescopic rod is slidably connected to the base plates along the length of the base plates.

[0011] By adopting the above technical solution, the two base plates provide a stable bottom support for the entire metal frame, distributing the force on the support plates and mounting bases. The support plates and base plates are connected by telescopic rods, which can slide along the length of the base plates. Operators can directly and quickly adjust the position and spacing of the support plates by sliding the telescopic rods. This allows the metal frame to be flexibly adjusted according to the actual space of the site, improving the flexibility of the device.

[0012] Optionally, an anti-slip plate is fixed to the lower end of the base plate to reduce the probability of accidental movement of the metal frame.

[0013] By adopting the above technical solution, the anti-slip plate is fixed at the lower end of the base plate, which increases the friction between the metal frame and the ground. The anti-slip plate can effectively reduce the accidental sliding or movement of the metal frame due to slight external forces, providing a stable and reliable storage environment for the measuring head.

[0014] Optionally, the telescopic rod includes an upper rod and a lower rod. The upper rod is fixed to the side of the support plate near the bottom plate, and the lower rod is located at the end of the upper rod away from the support plate. The upper rod is inserted into the lower rod, and the upper rod is slidably connected to the lower rod in the vertical direction. The upper rod has several threaded holes in the vertical direction, and a bolt is provided on one side of the lower rod. The bolt passes through the lower rod and is threaded to the inner wall of the threaded hole.

[0015] By adopting the above technical solution, the upper rod is moved vertically. When the upper rod is moved to a suitable height, the bolt holes on the lower rod are aligned with the corresponding threaded holes on the upper rod. Then, the bolts are screwed in to fix the upper rod at that height, which meets the requirements for the height of the support plate in different measurement scenarios and improves the flexibility of the device.

[0016] Optionally, a sliding rod is fixedly provided at the lower end of the lower rod. The sliding rod is slidably connected to the base plate along the length of the base plate. A fixing nut is provided at the end of the sliding rod away from the lower rod, and the fixing nut is threadedly connected to the sliding rod.

[0017] By adopting the above technical solution, the slide rod is slidably connected to the base plate along the length of the base plate, which allows the support plate to move in the horizontal direction. By sliding the slide rod, the operator can easily change the position of the support plate in the horizontal direction, thereby optimizing the storage layout of the measuring head. After the support plate slides to the required position via the slide rod, the fixing nut is tightened to fix the slide rod, reducing the probability of the support plate moving accidentally and improving the stability of the device.

[0018] Optionally, the metal frame is provided with several connecting plates on the side near the mounting base. Each connecting plate corresponds to a mounting base, and the connecting plates are detachably connected to the mounting base. The connecting plates are also slidably connected to the metal frame along its length.

[0019] By adopting the above technical solution, the connecting plate and the mounting base are detachably connected, which facilitates the disassembly and installation of the mounting base. The connecting plate is slidably connected to the metal frame along the length of the metal frame. Operators can easily slide the connecting plate according to actual needs to change the position of the metal frame relative to the mounting base, thereby changing the position of the measuring head and improving the flexibility of the device.

[0020] Optionally, a limiting cavity is provided on the mounting base, and several flanges are fixed at the upper end of the measuring head. When the measuring head is placed on the mounting base, the flanges are locked in the limiting cavity.

[0021] By adopting the above technical solution, the limiting cavity provides a clearly defined positioning area for the placement of the measuring head. When the operator places the measuring head on the mounting base, they only need to align the flange at the upper end of the measuring head with the limiting cavity, and the flange will naturally snap into the cavity, allowing the measuring head to quickly and accurately reach the predetermined position. When the flange is snapped into the limiting cavity, the side wall of the limiting cavity will restrain the flange, restricting the horizontal movement of the measuring head and improving the stability of the device.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. When the measuring head needs to be replaced, simply insert the connecting rod into the connecting slot, and the pusher will push the protrusion into the groove to lock it in place. Disassembly is similarly simple; just operate the pusher to release the lock and remove the measuring head. This shortens replacement time and increases replacement speed, thereby improving the measurement efficiency of parts. 2. Move the upper rod vertically. When the upper rod is moved to a suitable height, align the bolt holes on the lower rod with the corresponding threaded holes on the upper rod, and then screw in the bolts to fix the upper rod at that height. This meets the requirements for the height of the support plate in different measurement scenarios and improves the flexibility of the device. 3. After the support plate slides to the desired position via the slide rod, tighten the fixing nut to secure the slide rod, reducing the probability of accidental movement of the support plate and improving the stability of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a coordinate measuring head replacement device.

[0024] Figure 2 This is a schematic diagram designed to highlight the metal frame connection structure.

[0025] Figure 3 This is a schematic diagram designed to highlight the mounting bracket connection structure.

[0026] Figure 4 This is a cross-sectional schematic diagram designed to highlight the connecting rod connection structure.

[0027] Figure 5 yes Figure 4 An enlarged schematic diagram of part A in the middle.

[0028] Explanation of reference numerals in the attached drawings: 1. Measuring machine; 11. Connecting block; 12. Connecting rod; 121. Groove; 2. Metal frame; 21. Base plate; 22. Support plate; 23. Telescopic rod; 231. Upper rod; 232. Lower rod; 233. Threaded hole; 234. Bolt; 24. Anti-slip plate; 25. Connecting plate; 26. Mounting base; 261. Limiting cavity; 27. Slide rod; 271. Fixing nut; 3. Measuring head; 31. Connecting groove; 32. Protrusion; 33. Slide plate; 34. Elastic element; 35. Flange. Detailed Implementation

[0029] The present application will be further described in detail below with reference to all the accompanying drawings.

[0030] This application discloses a coordinate measuring head replacement device. Example

[0031] Reference Figure 1 and Figure 2 A coordinate measuring head replacement device includes a measuring machine 1, which is capable of omnidirectional movement. A metal frame 2 is provided on one side of the measuring machine 1, and several mounting seats 26 are provided on the other side of the metal frame 2. The mounting seats 26 are arranged along the length of the metal frame 2, and each mounting seat 26 has a limiting cavity 261. Several flanges 35 are fixed to the upper end of the measuring head 3. The limiting cavity 261 provides a clearly defined positioning area for placing the measuring head 3. When the operator places the measuring head 3 onto the mounting seat 26, they only need to align the flanges 35 at the upper end of the measuring head 3 with the limiting cavity 261, and the flanges 35 will naturally engage in the cavity, allowing the measuring head 3 to quickly and accurately reach the predetermined position. This achieves centralized storage and orderly placement of multiple measuring heads 3. When the flanges 35 are engaged in the limiting cavity 261, the sidewall of the limiting cavity 261 will constrain the flanges 35, restricting the horizontal movement of the measuring head 3. Meanwhile, the contact surface between the flange 35 and the limiting cavity 261 can also provide a certain amount of friction, reducing the shaking or displacement of the measuring head 3 when subjected to slight external forces, and improving the stability of the device.

[0032] Reference Figure 3 and Figure 4 A connecting block 11 is fixed at the lower end of the measuring machine 1, and a connecting rod 12 is fixed at the lower end of the connecting block 11. A connecting groove 31 is opened at the upper end of the measuring head 3. When installing the measuring head 3, the measuring machine 1 drives the connecting rod 12 to move, so that the connecting rod 12 is inserted into the connecting groove 31. A protrusion 32 is fixed in the connecting groove 31. A groove 121 is opened at the upper end of the connecting rod 12. After the connecting rod 12 is inserted into the connecting groove 31, the measuring machine 1 drives the connecting rod 12 to rise, so that the measuring head 3 is separated from the mounting base 26. At the same time, under the action of its own weight, the measuring head 3 causes the protrusion 32 to be inserted into the groove 121 and to engage with the inner wall of the groove 121, thus completing the installation of the measuring head 3, improving the replacement speed, and thereby improving the measurement efficiency of parts.

[0033] Reference Figure 5 The connecting groove 31 is provided with a sliding plate 33, which slides vertically against the inner wall of the connecting groove 31. An elastic element 34 is fixed between the sliding plate 33 and the inner wall of the connecting groove 31. The elastic element 34 can be a spring. After the connecting rod 12 enters the connecting groove 31, the elastic element 34 drives the sliding plate 33 to slide vertically along the connecting groove 31 and tightly abut against the connecting rod 12 through its own elastic force, forming a continuous pre-tightening pressure. This pushes the protrusion 32 to form a tight engagement with the inner wall of the groove 121, reducing the loosening or separation of the protrusion 32 and the groove 121 due to vibration. This ensures that the connection between the measuring head 3 and the measuring machine 1 remains firm and stable, improving the stability of the device.

[0034] When disassembly is required, the measuring machine 1 moves the measuring head 3 to the mounting base 26. At this time, the mounting base 26 supports the measuring head 3. The measuring machine 1 drives the connecting rod 12 to descend. At this time, the elastic element 34 is compressed, the protrusion 32 separates from the inner wall of the groove 121, and the measuring machine 1 drives the connecting rod 12 to separate from the connecting groove 31, thereby realizing the disassembly of the measuring head 3.

[0035] Reference Figure 4 The metal frame 2 has several connecting plates 25 on the side near the mounting base 26. Each connecting plate 25 corresponds to a mounting base 26. The connecting plates 25 and the mounting base 26 are detachably connected by screws, which facilitates the disassembly and installation of the mounting base 26 according to the number of measuring heads 3. The connecting plates 25 are slidably connected to the metal frame 2 along the length of the metal frame 2. The operator can easily slide the connecting plates 25 to change the position of the metal frame 2 relative to the mounting base 26 according to actual needs, thereby changing the position of the measuring head 3 and improving the flexibility of the device.

[0036] Reference Figure 3 and Figure 4 The metal frame 2 includes two base plates 21 and several support plates 22. The two base plates 21 are located on one side of the measuring machine 1 and are on the ground. The several support plates 22 are located at the upper end of the base plates 21. The two base plates 21 provide a stable bottom support for the entire metal frame 2 and distribute the force on the support plates 22 and the mounting base 26. A telescopic rod 23 is provided between the support plates 22 and the two base plates 21. The telescopic rod 23 is fixedly connected to the support plates 22. A sliding rod 27 is fixedly provided at the lower end of the telescopic rod 23. The sliding rod 27 is slidably connected to the base plates 21 along the length direction of the base plates 21.

[0037] Reference Figure 3 and Figure 4 By sliding the slider 27, the operator can easily change the horizontal position of the support plate 22, thereby optimizing the storage layout of the measuring head 3 and enabling the metal frame 2 to adapt to various site environments. In a more spacious area, the support plate 22 can be pulled apart to expand the storage area for the measuring head 3, allowing for the placement of more different types of measuring heads 3; in a space-constrained area, the support plate 22 can be moved closer to the center, making the metal frame 2 more compact, saving valuable space, and ensuring that measurement work can be carried out smoothly. This allows the metal frame 2 to be flexibly adjusted according to the actual site space, improving the flexibility of the device's use.

[0038] Reference Figure 3 and Figure 4 A fixing nut 271 is provided at the end of the slide rod 27 away from the lower rod 232. The fixing nut 271 is threadedly connected to the slide rod 27. After tightening, the fixing nut 271 can generate a large friction force, which can firmly fix the slide rod 27 to the base plate 21 and reduce the probability of accidental sliding.

[0039] Reference Figure 3 The telescopic rod 23 includes an upper rod 231 and a lower rod 232. The upper rod 231 is fixed to the side of the support plate 22 near the bottom plate 21, and the lower rod 232 is located at the end of the upper rod 231 away from the support plate 22. The upper rod 231 is inserted into the lower rod 232, and the upper rod 231 is slidably connected to the lower rod 232 in the vertical direction. Moving the upper rod 231 in the vertical direction adjusts the length of the telescopic rod 23, meeting the height requirements of the support plate 22 in different measurement scenarios and improving the flexibility of the device. The upper rod 231 has several threaded holes 233 vertically. A bolt 234 is provided on one side of the lower rod 232. The bolt 234 passes through the lower rod 232 and is threaded to the inner wall of the threaded hole 233. When the upper rod 231 is moved to a suitable height, so that the bolt 234 hole on the lower rod 232 is aligned with the corresponding threaded hole 233 on the upper rod 231, the bolt 234 is screwed in to fix the upper rod 231 at that height, reducing the probability of the upper rod 231 sliding accidentally and improving the stability of the device.

[0040] Reference Figure 3 and Figure 4 An anti-slip plate 24 is fixedly installed at the lower end of the base plate 21. This increases the friction between the metal frame 2 and the ground. The anti-slip plate 24 effectively reduces accidental sliding or movement of the metal frame 2 due to slight external forces, providing a stable and reliable storage environment for the measuring head 3. The anti-slip plate 24 is made of elastic anti-slip materials such as rubber and silicone, which not only prevents displacement through friction but also provides a certain degree of cushioning and vibration reduction. When vibrations generated during the operation of the measuring machine 1 or external environmental vibrations are transmitted to the metal frame 2, the anti-slip plate 24 can absorb some of the vibration energy through its own elastic deformation, reducing the impact of vibration on the metal frame 2 and the mounting base 26.

[0041] The implementation principle of the coordinate measuring head replacement device in this application embodiment is as follows: When the measuring head 3 needs to be replaced, the measuring machine 1 drives the connecting rod 12 to move, the connecting rod 12 is inserted into the connecting groove 31, the connecting rod 12 rises, so that the protrusion 32 enters the groove 121 and engages. Under its own weight, the measuring head 3 keeps the protrusion 32 engaged with the groove 121. At the same time, the sliding plate 33, under the action of the elastic force of the elastic element 34, pushes the protrusion 32 into the groove 121, thereby realizing the installation of the measuring head 3, reducing the replacement time of the measuring head 3, and thus improving the measurement efficiency of parts.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A coordinate measuring head changing device, comprising a measuring machine (1), characterized in that: The measuring machine (1) has a metal frame (2) on one side, and a number of mounting seats (26) for placing measuring heads (3) are provided on one side of the metal frame (2). The mounting seats (26) are arranged along the length of the metal frame (2). A connecting block (11) for connecting the measuring head (3) is fixed at the lower end of the measuring machine (1). A connecting groove (31) is opened at the upper end of the measuring head (3). A connecting rod (12) is fixed at the lower end of the connecting block (11). The connecting rod (12) is inserted into the connecting groove (31). A protrusion (32) is fixed in the connecting groove (31). A groove (121) is opened at the upper end of the connecting rod (12). When the measuring head (3) is installed, the protrusion (32) is inserted into the groove (121) and engages with the inner wall of the groove (121). A pusher is provided in the connecting groove (31). The pusher is used to push the protrusion (32) into the groove (121).

2. The coordinate measuring head replacement device according to claim 1, characterized in that: The pushing component includes a sliding plate (33) and an elastic element (34). The sliding plate (33) is located in the connecting groove (31) and is slidably connected to the inner wall of the connecting groove (31) in the vertical direction. The sliding plate (33) is tightly fitted with the connecting rod (12). The elastic element (34) is fixed between the sliding plate (33) and the inner wall of the connecting groove (31). In its natural state, the elastic element (34) drives the sliding plate (33) to abut against the connecting rod (12).

3. The coordinate measuring head replacement device according to claim 1, characterized in that: The metal frame (2) includes two base plates (21) and several support plates (22). The two base plates (21) are located on one side of the measuring machine (1), and the several support plates (22) are located at the upper end of the base plates (21). A telescopic rod (23) is provided between the support plate (22) and the two base plates (21). The telescopic rod (23) is fixedly connected to the support plate (22), and the telescopic rod (23) is slidably connected to the base plate (21) along the length direction of the base plate (21).

4. A coordinate measuring head replacement device according to claim 3, characterized in that: The lower end of the base plate (21) is fixed with an anti-slip plate (24), which is used to reduce the probability of the metal frame (2) moving accidentally.

5. A coordinate measuring head replacement device according to claim 3, characterized in that: The telescopic rod (23) includes an upper rod (231) and a lower rod (232). The upper rod (231) is fixed to the side of the support plate (22) near the bottom plate (21). The lower rod (232) is located at the end of the upper rod (231) away from the support plate (22). The upper rod (231) is inserted into the lower rod (232) and the upper rod (231) is slidably connected to the lower rod (232) in the vertical direction. The upper rod (231) has several threaded holes (233) in the vertical direction. A bolt (234) is provided on one side of the lower rod (232). The bolt (234) passes through the lower rod (232) and is threaded to the inner wall of the threaded hole (233).

6. A coordinate measuring head replacement device according to claim 5, characterized in that: The lower end of the lower rod (232) is fixedly provided with a slide rod (27). The slide rod (27) is slidably connected to the base plate (21) along the length direction of the base plate (21). A fixing nut (271) is provided at the end of the slide rod (27) away from the lower rod (232). The fixing nut (271) is threadedly connected to the slide rod (27).

7. A coordinate measuring head replacement device according to claim 1, characterized in that: The metal frame (2) has several connecting plates (25) on the side near the mounting base (26). The connecting plates (25) correspond one-to-one with the mounting base (26). The connecting plates (25) and the mounting base (26) are detachably connected, and the connecting plates (25) are slidably connected to the metal frame (2) along the length of the metal frame (2).

8. A coordinate measuring head replacement device according to claim 1, characterized in that: The mounting base (26) has a limiting cavity (261), and the upper end of the measuring head (3) is fixed with several flanges (35). When the measuring head (3) is placed on the mounting base (26), the flanges (35) are stuck in the limiting cavity (261).

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