Auxiliary tool of portable three-coordinate measuring machine

Abstract

The utility model discloses an auxiliary tool for a portable three-coordinate measuring machine, which relates to the technical field of three-coordinate measuring machines and comprises a fixing seat and a three-coordinate measuring machine arranged on the fixing seat, a second rectangular groove is arranged on one side of the outer portion of the fixing seat, a clamping assembly is arranged in the second rectangular groove, and the clamping assembly is connected with the fixing seat. The clamping assembly comprises a pull block arranged in the second rectangular groove in a sliding mode, a pull rod is fixedly connected to one side of the pull block, and a first rectangular groove is formed in the side, away from the pull block, of the second rectangular groove; according to the utility model, the drawable pull block is arranged, so that the pull rod and the abutting block synchronously move along with the pull block, then the limiting block is supported through the reset force of the telescopic spring, the abutting block is clamped with the clamping groove, and the three-coordinate measuring machine is fixed through the magnetic attraction of the iron block and the magnet; meanwhile, a damping spring and a buffer plate are arranged for buffering when the pull block is reset, and the pull block and the abutting block are prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of coordinate measuring machine technology, specifically to an auxiliary tooling for a portable coordinate measuring machine. Background Technology

[0002] A coordinate measuring machine (CMM) is an instrument capable of measuring geometric shapes, lengths, and circumferential divisions within a six-sided spatial range. Its measurement functions include dimensional accuracy, positioning accuracy, geometric accuracy, and contour accuracy, and it is widely used in industries such as mold making, aerospace, automotive, and electronics.

[0003] A Chinese patent (publication number CN218409296U) discloses a portable coordinate measuring machine (CMM) that is easy to fix. It is equipped with a mounting frame, a metal suction block, and a magnetic fixing device. The CMM body is plugged into the mounting frame. By setting a power module, the metal suction block attracts the magnetic component, fixing the CMM on the adjustable mounting frame. This realizes convenient portable use of the CMM, quick installation and fixation, and improves the stability of the equipment.

[0004] However, when the coordinate measuring machine designed above is in use, the power module needs to be powered on. When the power module is powered, if the voltage is unstable, it will directly affect the performance of the electromagnet. Voltage fluctuations will cause changes in current, thereby changing the magnetic field strength of the electromagnet. When the voltage decreases, the current decreases, the magnetic field strength of the electromagnet weakens, and the attraction force also decreases, which may affect the stability of the measuring machine when it is fixed, thus affecting the accuracy of the measurement data. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary tooling for a portable coordinate measuring machine to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides an auxiliary tooling for a portable coordinate measuring machine, including a fixed base and a coordinate measuring machine mounted on the fixed base. A second rectangular groove is formed on the outer side of the fixed base, and a snap-fit ​​assembly is disposed within the second rectangular groove. The snap-fit ​​assembly includes a pull block slidably disposed within the second rectangular groove. A pull rod is fixedly connected to one side of the pull block. A first rectangular groove is formed on the side of the second rectangular groove away from the pull block. A through hole is formed between the first and second rectangular grooves. The pull rod is slidably inserted into the through hole. A limit block is fixedly connected to the outer surface of the pull rod. The limit block is slidably disposed inside the first rectangular groove. A telescopic spring is fixedly installed on one side of the limit block, and the other end of the telescopic spring is fixedly connected to the inner wall of the first rectangular groove. An abutment block is fixedly installed at one end of the pull rod.

[0007] Furthermore, a damper is fixedly installed on the inner wall side of the second rectangular groove near the first rectangular groove, and a damping spring is sleeved on the outside of the damper. One end of the damping spring is fixedly connected to the second rectangular groove, and the other end of the damping spring is fixedly connected to a buffer plate.

[0008] Furthermore, the top of the fixed base is provided with an installation groove, the coordinate measuring machine is snapped into the installation groove, the installation groove is connected to the first rectangular groove, and a snap-fit ​​groove is provided on one side of the bottom of the coordinate measuring machine. The abutment block snaps into the snap-fit ​​groove, and a magnet is fixedly installed on the side of the abutment block near the snap-fit ​​groove. An iron block is fixedly installed inside the snap-fit ​​groove, and the iron block is magnetically attracted to the magnet.

[0009] Furthermore, a sliding groove is provided on one side of the inner wall of the first rectangular groove, and a guide slider is connected to one side of the limiting block, and the guide slider is slidably connected to the sliding groove.

[0010] Furthermore, a support rod is fixedly installed on one bottom side of the fixed base, and a threaded hole is opened on the other side of the fixed base, with a threaded rod threadedly connected inside the threaded hole.

[0011] Furthermore, a buffer pad is connected to the side of the pull block near the buffer plate, and the buffer pad is made of rubber.

[0012] Furthermore, the damper is provided in two parts, and the two dampers are symmetrically arranged on both sides of the second rectangular groove with the tie rod as the center.

[0013] Furthermore, a groove is formed on one side of the pull block.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a pullable block, the pull rod and the abutment block move synchronously with the pull block, and then the limiting block is supported by the force of the telescopic spring to make the abutment block engage with the locking groove. The coordinate measuring machine is fixed by the magnetic attraction between the iron block and the magnet. In order to avoid the large impact force when the pull block is reset, a damping spring and a buffer plate are set to buffer the kinetic energy when the pull block is reset, so as to avoid damage to the pull block and the coordinate measuring machine. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the exterior of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the fixing base of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the snap-fit ​​assembly of this utility model;

[0018] Figure 4This is a three-dimensional structural diagram of the coordinate measuring machine of this utility model.

[0019] In the diagram: 1. Fixed base; 2. Coordinate measuring machine; 3. Pull block; 4. Mounting groove; 5. First rectangular groove; 6. Second rectangular groove; 7. Limiting block; 8. Pull rod; 9. Telescopic spring; 10. Abutment block; 11. Magnet; 12. Damper; 13. Damping spring; 14. Buffer plate; 15. Buffer pad; 16. Snap-fit ​​groove; 17. Iron block; 18. Support rod; 19. Pull groove; 20. Threaded rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: including a fixed base 1 and a coordinate measuring machine 2 mounted on the fixed base 1. A second rectangular groove 6 is provided on the outer side of the fixed base 1. A snap-fit ​​assembly is provided in the second rectangular groove 6. The snap-fit ​​assembly includes a pull block 3 slidably disposed in the second rectangular groove 6. A pull rod 8 is fixedly connected to one side of the pull block 3. A first rectangular groove 5 is provided on the side of the second rectangular groove 6 away from the pull block 3. A through hole is provided between the first rectangular groove 5 and the second rectangular groove 6. The pull rod 8 is slidably inserted into the through hole. A limit block 7 is fixedly connected to the outer surface of the pull rod 8. The limit block 7 is slidably disposed inside the first rectangular groove 5. A telescopic spring 9 is fixedly installed on one side of the limit block 7. The other end of the telescopic spring 9 is fixedly connected to the inner wall of the first rectangular groove 5. An abutment block 10 is fixedly installed on one end of the pull rod 8. A pull groove 19 is provided on one side of the pull block 3.

[0022] In practice, the operator can insert their finger into the pull groove 19 to pull the pull block 3, causing the pull rod 8 and the contact block 10 to move. When the pull rod 8 moves outward with the pull block 3 towards the fixed base 1, the limiting block 7 slides synchronously with the pull rod 8 in the first rectangular groove 5. The telescopic spring 9 is compressed when the limiting block 7 moves, and the contact block 10 moves into the interior of the first rectangular groove 5. The coordinate measuring machine 2 is placed in the mounting groove 4. The pull block 3 is released, and the force of the telescopic spring 9 returning causes the limiting block 7 and the pull rod 8 to move closer to the coordinate measuring machine 2. The contact block 10 moves synchronously with the pull rod 8 and engages in the engaging groove 16. The magnet 11 and the iron block 17 are magnetically attracted, fixing the coordinate measuring machine 2 on the fixed base 1. The pull groove 19 is located inside the pull block 3 to prevent accidental contact.

[0023] See Figure 3A damper 12 is fixedly installed on the inner wall side of the second rectangular groove 6 near the first rectangular groove 5. A damping spring 13 is sleeved on the outside of the damper 12. One end of the damping spring 13 is fixedly connected to the second rectangular groove 6, and the other end of the damping spring 13 is fixedly connected to a buffer plate 14. There are two dampers 12. The two dampers 12 are symmetrically arranged on both sides of the second rectangular groove 6 with the pull rod 8 as the center. A buffer pad 15 is connected to the side of the pull block 3 near the buffer plate 14. The buffer pad 15 is made of rubber.

[0024] It should be noted that a circular through hole is provided on the buffer plate 14, and the pull rod 8 is slidably inserted into the buffer plate 14 through the circular through hole. The buffer plate 14 is fixedly connected to the drive end of the damper 12.

[0025] By setting the damper 12 and the damping spring 13, after the pull block 3 is released, when the pull block 3 moves into the second rectangular groove 6 under the force of the resetting force of the telescopic spring 9, the pull block 3 and the buffer pad 15 first come into contact with the buffer plate 14. When the buffer plate 14 comes into contact with the buffer pad 15, the material of the buffer pad 15 is set as rubber, which can prevent the pull block 3 from being damaged by collision. The damping spring 13 will generate elastic deformation to absorb the impact force, and the damper 12 will generate damping force to reduce vibration and buffer the pull block 3, preventing the contact block 10 from being damaged by the instantaneous impact force in the snap-fit ​​groove 16 when resetting.

[0026] See Figure 2 , Figure 3 and Figure 4 The top of the fixed base 1 is provided with an installation groove 4. The coordinate measuring machine 2 is snapped into the installation groove 4. The installation groove 4 is connected to the first rectangular groove 5. The bottom side of the coordinate measuring machine 2 is provided with a snap-fit ​​groove 16. The contact block 10 snaps into the snap-fit ​​groove 16. A magnet 11 is fixedly installed on the side of the contact block 10 near the snap-fit ​​groove 16. An iron block 17 is fixedly installed inside the snap-fit ​​groove 16. The iron block 17 and the magnet 11 are magnetically attracted to each other.

[0027] By setting up the iron block 17 and the magnet 11, when the contact block 10 is engaged in the slot 16, the iron block 17 and the magnet 11 are magnetically attracted to each other, fixing the contact block 10, thereby fixing the coordinate measuring machine 2 in the fixed base 1.

[0028] See Figure 3 A sliding groove is provided on one side of the inner wall of the first rectangular groove 5, and a guide slider is connected to one side of the limiting block 7. The guide slider is slidably connected to the sliding groove.

[0029] By providing a guide slider on one side of the limiting block 7, the stability of the limiting block 7 sliding within the first rectangular groove 5 through the guide slider is improved.

[0030] See Figure 2A support rod 18 is fixedly installed on one side of the bottom of the fixed base 1, and a threaded hole is opened on the other side of the fixed base 1, and a threaded rod 20 is threadedly connected in the threaded hole.

[0031] It should be noted that there are two support rods 18, both of which are located at the bottom of one side of the fixed base 1. The number of support rods 18 matches that of the threaded rods 20.

[0032] By setting the threaded rod 20, a bubble level is installed on the top of one side of the fixed base 1. When the ground is uneven, the level of the bubble level can be observed and the threaded rod 20 can be adjusted. The operator can adjust the level of the fixed base 1 by rotating the threaded rod 20 and adjusting the length of the threaded rod 20 at the bottom of the fixed base 1 to keep the measuring surface of the coordinate measuring machine 2 level, so as to ensure the stability of the measurement data.

[0033] Working principle: When using the device, the operator can insert their finger into the pull groove 19 and pull the pull block 3 to make the pull rod 8 and the contact block 10 move. When the pull rod 8 moves outward with the pull block 3, the limit block 7 slides synchronously with the pull rod 8 in the first rectangular groove 5. The telescopic spring 9 is compressed when the limit block 7 moves. The contact block 10 moves to the inside of the first rectangular groove 5. The coordinate measuring machine 2 is placed in the mounting groove 4. The pull block 3 is released. The force of the telescopic spring 9 returning to its original position makes the limit block 7 and the pull rod 8 move closer to the coordinate measuring machine 2. The contact block 10 moves synchronously with the pull rod 8 and is engaged in the engagement groove 16. The magnet 11 and the iron block 17 are magnetically attracted to each other, so that the coordinate measuring machine 2 is fixed on the fixed base 1.

[0034] After the pull block 3 is released, when the pull block 3 moves into the second rectangular groove 6 under the force of the return of the telescopic spring 9, the pull block 3 and the buffer pad 15 first come into contact with the buffer plate 14. When the buffer plate 14 comes into contact with the buffer pad 15, the material of the buffer pad 15 is rubber, which can prevent the pull block 3 from being damaged by collision. The damping spring 13 will generate elastic deformation to absorb the impact force, and the damper 12 will generate damping force to reduce vibration and buffer the pull block 3, preventing the contact block 10 from being damaged by the instantaneous impact force in the snap-fit ​​groove 16 during the return.

Claims

1. An auxiliary fixture for a portable coordinate measuring machine, comprising a fixed base (1) and a coordinate measuring machine (2) mounted on the fixed base (1), characterized in that: The fixed base (1) has a second rectangular groove (6) on its outer side. A snap-fit ​​assembly is provided in the second rectangular groove (6). The snap-fit ​​assembly includes a pull block (3) that is slidably disposed in the second rectangular groove (6). A pull rod (8) is fixedly connected to one side of the pull block (3). A first rectangular groove (5) is provided on the side of the second rectangular groove (6) away from the pull block (3). A through hole is provided between the first rectangular groove (5) and the second rectangular groove (6). The pull rod (8) is slidably inserted into the through hole. A limit block (7) is fixedly connected to the outer surface of the pull rod (8). The limit block (7) is slidably disposed inside the first rectangular groove (5). A telescopic spring (9) is fixedly installed on one side of the limit block (7). The other end of the telescopic spring (9) is fixedly connected to the inner wall of the first rectangular groove (5). An abutment block (10) is fixedly installed on one end of the pull rod (8).

2. The auxiliary tooling for a portable coordinate measuring machine as described in claim 1, characterized in that: A damper (12) is fixedly installed on the inner wall side of the second rectangular groove (6) near the first rectangular groove (5). A damping spring (13) is sleeved on the outside of the damper (12). One end of the damping spring (13) is fixedly connected to the second rectangular groove (6), and the other end of the damping spring (13) is fixedly connected to a buffer plate (14).

3. The auxiliary tooling for a portable coordinate measuring machine as described in claim 2, characterized in that: The top of the fixed base (1) is provided with an installation groove (4), the coordinate measuring machine (2) is snapped into the installation groove (4), the installation groove (4) is connected to the first rectangular groove (5), the bottom side of the coordinate measuring machine (2) is provided with a snap-fit ​​groove (16), the abutment block (10) is snapped into the snap-fit ​​groove (16), a magnet (11) is fixedly installed on the side of the abutment block (10) near the snap-fit ​​groove (16), an iron block (17) is fixedly installed inside the snap-fit ​​groove (16), and the iron block (17) and the magnet (11) are magnetically attracted to each other.

4. The auxiliary tooling for a portable coordinate measuring machine as described in claim 3, characterized in that: A sliding groove is provided on one side of the inner wall of the first rectangular groove (5), and a guide slider is connected to one side of the limiting block (7), and the guide slider is slidably connected to the sliding groove.

5. The auxiliary tooling for a portable coordinate measuring machine as described in claim 4, characterized in that: A support rod (18) is fixedly installed on one side of the bottom of the fixed seat (1), and a threaded hole is opened on the other side of the fixed seat (1), and a threaded rod (20) is threadedly connected in the threaded hole.

6. The auxiliary tooling for a portable coordinate measuring machine as described in claim 5, characterized in that: The pull block (3) is connected to a buffer pad (15) on the side near the buffer plate (14), and the buffer pad (15) is made of rubber.

7. The auxiliary tooling for a portable coordinate measuring machine as described in claim 6, characterized in that: The number of dampers (12) is set to two, and the two dampers (12) are symmetrically arranged on both sides of the second rectangular groove (6) with the tie rod (8) as the center.

8. The auxiliary tooling for a portable coordinate measuring machine as described in claim 7, characterized in that: A groove (19) is provided on one side of the pull block (3).

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