A quick-assembly positioning device for parts in a coordinate measuring machine

Abstract

This utility model discloses a quick-assembly positioning device for parts in a coordinate measuring machine (CMM), comprising a hollow base plate. An adjustable support structure for ensuring horizontal support is installed at the bottom of the hollow base plate, and a temperature control structure for adjusting temperature is provided inside the hollow base plate. A Y-axis strip is installed at the top of the hollow base plate. With this quick-assembly positioning device for CMM parts, the measuring operator can monitor the workpiece temperature in real time through the temperature value displayed on the temperature dial, thereby confirming whether it is within the normal temperature range of the material. This function helps ensure the stability of the workpiece temperature during measurement, avoids measurement errors caused by temperature changes, and improves measurement accuracy.

Description

Technical Field

[0001] This utility model relates to the field of coordinate measuring equipment technology, specifically a quick-assembly positioning device for parts in a coordinate measuring machine. Background Technology

[0002] In modern industrial production, coordinate measuring machines (CMMs), as high-precision measuring devices, are widely used in fields such as dimensional inspection, shape analysis, and quality control of mechanical parts. However, existing CMMs have many problems and shortcomings in use, limiting their measurement efficiency and accuracy. First, traditional CMMs have high requirements for the flatness of the table on which they are placed. If the table is uneven, the CMM is prone to tilting, leading to deviations in the measurement results.

[0003] Secondly, the temperature of the workpiece significantly affects its measured dimensions and shape. However, most existing coordinate measuring machines (CMMs) lack temperature monitoring and control devices, making it impossible to monitor the workpiece temperature in real time or effectively regulate it. This results in uncontrolled temperature changes during measurement, introducing measurement errors and reducing accuracy. Even those CMMs that can monitor temperature cannot actively regulate it, failing to meet the needs of measuring workpieces under varying temperature conditions and limiting their use in certain specialized applications.

[0004] To address the aforementioned issues, there is an urgent need for innovative design based on existing coordinate measuring machines. Utility Model Content

[0005] This utility model addresses the problem that existing technical solutions are too simplistic by providing a quick-assembly positioning device for parts in a coordinate measuring machine that is significantly different from existing technologies, thus solving the problems mentioned in the background.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-assembly positioning device for parts in a coordinate measuring machine, comprising a hollow base plate, an adjustable support structure for ensuring horizontal support installed at the bottom of the hollow base plate, and a temperature control structure for adjusting the temperature inside the hollow base plate, a Y-axis strip installed at the top of the hollow base plate, a limiting structure provided on one side of the Y-axis strip, and an X-axis block slidably connected to the Y-axis strip through the limiting structure, a limiting groove opened at the top of the Y-axis strip, and the lower end of a Z-axis rod slidably connected in the limiting groove, and an alignment and positioning structure installed on the outer wall of the upper end of the Z-axis rod.

[0007] Preferably, the adjustable support structure includes a universal joint, a cylinder, a screw, and a semicircular block. At least four universal joints are connected at equal angles to the bottom of the hollow base plate, and a cylinder is rotatably connected to each universal joint. A screw is threaded into each cylinder, and a semicircular block is rotatably connected to the lower end of each screw. The bottom of the semicircular block, which is used to contact the tabletop, is provided with a rubber layer for anti-slip.

[0008] Preferably, the temperature control structure includes a guide plate, a heat-conducting rod, and a control valve. Several guide plates are evenly spaced and staggered inside the hollow substrate, and several heat-conducting rods that facilitate heat transfer are evenly connected in the area between each guide plate inside the hollow substrate. The upper end of the heat-conducting rod penetrates through the upper surface of the hollow substrate and is parallel to it. A control valve for controlling air inlet and outlet is installed at each end of one side of the hollow substrate.

[0009] Preferably, the limiting structure includes a strip-shaped toothed groove, a toothed block, a slot, a movable groove, a return spring, and a piston rod. The Y-axis strip has a strip-shaped toothed groove on one side, and the end of the X-axis block is slidably connected to the strip-shaped toothed groove. A slot is provided on each side of the end of the X-axis block, and a toothed block is slidably connected in each slot. Each slot is connected to the movable groove, which is located in the X-axis block at the end away from the toothed block. A return spring is provided in the movable groove, and the return spring is connected to the piston rod. The end of the piston rod passes through the end of the X-axis block.

[0010] Preferably, the upper and lower sides of the strip-shaped toothed groove are densely provided with teeth at equal intervals, and the teeth on the toothed block engage with the teeth on the strip-shaped toothed groove.

[0011] Preferably, the alignment and positioning structure includes a sliding sleeve, a strip plate, a bonding block, and a temperature measuring dial. The sliding sleeve is slidably connected to the Z-axis rod, and the outer wall of the sliding sleeve is connected to the strip plate. The bottom of the strip plate is connected to the bonding block for bonding the workpiece, and the upper end of the bonding block is connected to the temperature measuring dial installed on the top of the strip plate.

[0012] Preferably, the bonding block is configured with a "T" shaped structure and is made of aluminum with good thermal conductivity.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: This quick-assembly positioning device for coordinate measuring machines features a horizontal adjustment function. By rotating the screw, it can move outward or inward within the cylinder, allowing for flexible adjustment based on the flatness of the work surface, ensuring the hollow substrate is relatively horizontal. This design enables the device to adapt to work surfaces with varying flatness. Even on uneven workbenches, it maintains stability and measurement accuracy, significantly improving its applicability and practicality, and avoiding the problem of measurement results being affected by device tilting due to uneven work surfaces.

[0014] Rapid positioning and fixing: By pulling the piston rod, and utilizing the return spring and hydraulic oil or air, the toothed block can be quickly disengaged and engaged with the strip toothed groove. This allows for convenient and quick movement of the X-axis block to the appropriate position on the Y-axis strip. Furthermore, it automatically resets and re-engages after the piston rod is released, achieving rapid positioning and fixing of the X-axis block. This structural design simplifies the operation process, improves positioning efficiency during measurement, saves measurement time, and enables measurement personnel to perform triaxial measurement operations more conveniently.

[0015] Temperature Monitoring and Control: The aluminum bonding block has excellent thermal conductivity, which allows the workpiece temperature to be quickly transferred to the temperature measuring dial. The operator can monitor the workpiece temperature in real time by viewing the displayed value on the dial, thus confirming whether it is within the material's normal temperature range. This function helps ensure the stability of the workpiece temperature during measurement, avoiding measurement errors caused by temperature changes and improving measurement accuracy.

[0016] Temperature regulation function: Cold or hot air is supplied to the hollow substrate through a control valve. The gas flows along the guide plate and acts on the workpiece under test on the hollow substrate through the heat-conducting rod, thereby cooling or heating the workpiece. This temperature regulation function enables the device to measure the workpiece under different temperature conditions, thus measuring the parameters of the workpiece at different temperatures. This provides strong support for studying the performance changes of the workpiece under different temperature environments, further improving the comprehensiveness and accuracy of the measurement, and meeting the need for precise measurement of workpieces under multiple temperature conditions. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present invention;

[0018] Figure 2 This is a frontal cross-sectional view of the present invention.

[0019] Figure 3 This is a top view of the structure of this utility model;

[0020] Figure 4 This is a top view cross-sectional structural diagram of the strip-shaped toothed groove of this utility model;

[0021] Figure 5 This is a top view cross-sectional structural diagram of the hollow substrate of this utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the X-axis block of this utility model.

[0023] In the diagram: 1. Hollow base plate; 2. Adjustable support structure; 201. Universal shaft; 202. Cylinder; 203. Screw; 204. Semicircular block; 3. Temperature control structure; 301. Guide plate; 302. Heat-conducting rod; 303. Control valve; 4. Y-axis bar; 5. X-axis block; 6. Limiting structure; 601. Strip-shaped toothed groove; 602. Toothed block; 603. Slot; 604. Movable groove; 605. Return spring; 606. Piston rod; 7. Limiting groove; 8. Z-axis rod; 9. Alignment and positioning structure; 901. Sliding sleeve; 902. Strip plate; 903. Adhesive block; 904. Temperature measuring dial. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-6 This utility model provides a technical solution: a quick-assembly positioning device for parts in a coordinate measuring machine, comprising a hollow base plate 1, an adjusting support structure 2, a universal joint 201, a cylinder 202, a screw 203, a semi-circular block 204, a temperature control structure 3, a guide plate 301, a heat-conducting rod 302, a control valve 303, a Y-axis bar 4, an X-axis block 5, a limiting structure 6, a strip-shaped toothed groove 601, a toothed block 602, a slot 603, a movable groove 604, a return spring 605, a piston rod 606, a limiting groove 7, a Z-axis rod 8, an alignment and positioning structure 9, and a sliding sleeve. 901, strip 902, bonding block 903, temperature measuring dial 904, the bottom of the hollow base plate 1 is equipped with an adjustment support structure 2 to ensure horizontal support, and the hollow base plate 1 is provided with a temperature control structure 3 for adjusting temperature. The top of the hollow base plate 1 is equipped with a Y-axis strip 4, and a limiting structure 6 is provided on one side of the Y-axis strip 4. The Y-axis strip 4 is slidably connected to an X-axis block 5 through the limiting structure 6. A limiting groove 7 is opened on the top of the Y-axis strip 4, and the lower end of a Z-axis rod 8 is slidably connected in the limiting groove 7. An alignment and positioning structure 9 is installed on the outer wall of the upper end of the Z-axis rod 8.

[0026] The adjustable support structure 2 includes a universal joint 201, a cylinder 202, a screw 203, and a semicircular block 204. At least four universal joints 201 are connected at equal angles to the bottom of the hollow base plate 1, and a cylinder 202 is rotatably connected to each universal joint 201. A screw 203 is threaded into each cylinder 202. A semicircular block 204 is rotatably connected to the lower end of each screw 203. The bottom of the semicircular block 204, which is used to contact the tabletop, is provided with a rubber layer for anti-slip.

[0027] The temperature control structure 3 includes a guide plate 301, a heat-conducting rod 302, and a control valve 303. Several guide plates 301 are evenly spaced and staggered inside the hollow substrate 1. Several heat-conducting rods 302 are evenly spaced in the area between each guide plate 301 inside the hollow substrate 1 to facilitate heat transfer. The upper end of the heat-conducting rod 302 penetrates through the upper surface of the hollow substrate 1 and is parallel to it. A control valve 303 for controlling air inlet and outlet is installed at each end of one side of the hollow substrate 1.

[0028] The limiting structure 6 includes a strip-shaped toothed groove 601, a toothed block 602, a slot 603, a movable groove 604, a return spring 605, and a piston rod 606. A strip-shaped toothed groove 601 is provided on one side of the Y-axis bar 4, and the end of the X-axis block 5 is slidably connected in the strip-shaped toothed groove 601. A slot 603 is provided on each side of the end of the X-axis block 5. A toothed block 602 is slidably connected in each slot 603, and each slot 603 is connected to the movable groove 604. The movable groove 604 is provided at the end of the X-axis block 5 away from the toothed block 602. A return spring 605 is provided in the movable groove 604, and the return spring 605 is connected to the piston rod 606. The end of the piston rod 606 passes through the end of the X-axis block 5.

[0029] The upper and lower sides of the strip-shaped toothed groove 601 are densely and evenly spaced with teeth, and the teeth on the toothed block 602 engage with the teeth on the strip-shaped toothed groove 601.

[0030] The alignment and positioning structure 9 includes a sliding sleeve 901, a strip plate 902, a bonding block 903, and a temperature measuring dial 904. The sliding sleeve 901 is slidably connected to the Z-axis rod 8, and the strip plate 902 is connected to the outer wall of the sliding sleeve 901. The bonding block 903 for bonding the workpiece is connected to the bottom of the strip plate 902, and the upper end of the bonding block 903 is connected to the temperature measuring dial 904 installed on the top of the strip plate 902.

[0031] The bonding block 903 is designed with a "T" shape and is made of aluminum with good thermal conductivity.

[0032] Working principle: According to Figure 1 As shown, firstly, depending on the flatness of the table where the device is to be placed, if one side is uneven, the screw 203 on that side is rotated to move it outward or inward from the cylinder 202, thereby adjusting it so that the hollow base plate 1 is in a relatively horizontal state.

[0033] Then, by pulling the piston rod 606, it moves within the movable groove 604, and the return spring 605 is stretched. During this process, the hydraulic oil or air in the slot 603 is drawn into the movable groove 604, causing the toothed block 602 to disengage from the teeth in the strip toothed groove 601. The toothed block 602 moves into the slot 603. At this time, as needed, the X-axis block 5 is moved to a suitable position on the Y-axis bar 4, and then the piston rod 606 is released. The return spring 605 is released from its restraint, and the piston rod 606 is reset. The hydraulic oil or air drawn into the slot 603 from the movable groove 604 is transported back into the slot 603, causing the toothed block 602 to move out of the slot 603 and re-engage with the teeth in the strip toothed groove 601.

[0034] The workpiece to be measured is placed on the hollow substrate 1, between the Y-axis strip 4 and the X-axis block 5. Then, the sliding sleeve 901 is moved, and the strip 902 drives the bonding block 903 to contact the top of the workpiece, thereby realizing rapid triaxial measurement. Through the aluminum bonding block 903 and the effect of heat conduction, the temperature of the workpiece can be transferred to the temperature measuring dial 904. The measuring personnel can confirm whether the temperature value displayed on the temperature measuring dial 904 is within the normal temperature range of the material, thereby ensuring the accuracy of the measurement.

[0035] Cold or hot air is supplied into the hollow substrate 1 through the control valve 303. The gas flows along the guide plate 301 and acts on the workpiece to be measured on the hollow substrate 1 through the heat conduction rod 302, thereby cooling or heating the workpiece and measuring the parameters of the workpiece at different temperatures. This is the working principle of the quick-assembly positioning device for parts of the coordinate measuring machine.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-assembly positioning device for parts in a coordinate measuring machine, comprising a hollow base plate (1), characterized in that: The hollow substrate (1) is equipped with an adjustable support structure (2) for ensuring horizontal support at the bottom, and a temperature control structure (3) for adjusting the temperature is provided inside the hollow substrate (1). A Y-axis strip (4) is installed on the top of the hollow substrate (1), and a limiting structure (6) is provided on one side of the Y-axis strip (4). The Y-axis strip (4) is slidably connected to an X-axis block (5) through the limiting structure (6). A limiting groove (7) is opened on the top of the Y-axis strip (4), and the lower end of a Z-axis rod (8) is slidably connected in the limiting groove (7). An alignment and positioning structure (9) is installed on the outer wall of the upper end of the Z-axis rod (8).

2. The quick-assembly positioning device for parts in a coordinate measuring machine according to claim 1, characterized in that: The adjustable support structure (2) includes a universal joint (201), a cylinder (202), a screw (203), and a semicircular block (204). At least four universal joints (201) are connected at equal angles to the bottom of the hollow base plate (1), and a cylinder (202) is rotatably connected to each universal joint (201). A screw (203) is threaded into each cylinder (202), and a semicircular block (204) is rotatably connected to the lower end of each screw (203). The semicircular block (204) is provided with a rubber layer for anti-slip on the bottom of the plane that contacts the table.

3. The quick-assembly positioning device for parts in a coordinate measuring machine according to claim 1, characterized in that: The temperature control structure (3) includes a guide plate (301), a heat-conducting rod (302), and a control valve (303). Several guide plates (301) are evenly spaced and staggered inside the hollow substrate (1). Several heat-conducting rods (302) are evenly spaced in the area between each guide plate (301) inside the hollow substrate (1) to facilitate heat transfer. The upper end of the heat-conducting rod (302) penetrates through the upper surface of the hollow substrate (1) and is parallel to it. A control valve (303) for air inlet and outlet control is installed at each end of one side of the hollow substrate (1).

4. The quick-assembly positioning device for parts in a coordinate measuring machine according to claim 1, characterized in that: The limiting structure (6) includes a strip toothed groove (601), a toothed block (602), a slot (603), a movable groove (604), a return spring (605), and a piston rod (606). A strip toothed groove (601) is provided on one side of the Y-axis strip (4), and the end of the X-axis block (5) is slidably connected in the strip toothed groove (601). A slot (603) is provided on each side of the end of the X-axis block (5). A toothed block (602) is slidably connected in each slot (603), and each slot (603) is connected to the movable groove (604). The movable groove (604) is located in the X-axis block (5) at the end away from the toothed block (602). A return spring (605) is provided in the movable groove (604), and the return spring (605) is connected to the piston rod (606). The end of the piston rod (606) passes through the end of the X-axis block (5).

5. A quick-assembly positioning device for parts in a coordinate measuring machine according to claim 4, characterized in that: The strip-shaped toothed groove (601) has densely spaced teeth on both the upper and lower sides, and the teeth on the toothed block (602) engage with the teeth on the strip-shaped toothed groove (601).

6. A quick-assembly positioning device for parts in a coordinate measuring machine according to claim 1, characterized in that: The alignment and positioning structure (9) includes a sliding sleeve (901), a strip plate (902), a bonding block (903), and a temperature measuring dial (904). The sliding sleeve (901) is slidably connected to the Z-axis rod (8), and the strip plate (902) is connected to the outer wall of the sliding sleeve (901). The bottom of the strip plate (902) is connected to the bonding block (903) for bonding the workpiece. The upper end of the bonding block (903) is connected to the temperature measuring dial (904) installed on the top of the strip plate (902).

7. A quick-assembly positioning device for parts in a coordinate measuring machine according to claim 6, characterized in that: The bonding block (903) is configured with a "T" shaped structure and is made of aluminum with good thermal conductivity.

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