Measuring structure for special-shaped part and three-coordinate measuring device

Abstract

The utility model discloses a measuring structure for a special-shaped part, which comprises a connector and a measuring head, a sliding sleeve arranged at the bottom of the connector and provided with a mounting groove arranged at the bottom of the sliding sleeve, a sliding groove arranged around the mounting groove, a limiting sleeve nested outside the sliding sleeve in a sliding manner, and a spring nested outside the sliding sleeve, the spring is located between the limiting sleeve and the sliding sleeve, the spring provides elastic force to push the limiting sleeve to slide and move outside the sliding sleeve, the measuring head is arranged in the sliding sleeve in a sliding mode, and the measuring head is provided with a sliding rod arranged on the side face of the measuring head. According to the utility model, through the arrangement of the connector and the measuring head, the limiting sleeve can be pushed by the spring to slide on the outer side of the sliding sleeve, so that the position of the sliding rod sliding into the sliding groove can be limited in the sliding groove, the position of the measuring head can be fixed, and when the measuring head is replaced, the working efficiency is improved. And the measuring head can be detached from the sliding sleeve only by upwards sliding the limiting sleeve.

Description

TECHNICAL FIELD

[0001] The utility model relates to three coordinate measuring instrument technical field, concretely is a kind of measuring structure and three coordinate measuring device for special-shaped parts. BACKGROUND

[0002] Three coordinate measuring instrument refers to the measuring ability of geometry shape, length and circumference graduation in the space range of a hexahedron, also called three coordinate measuring machine or three coordinate measuring bed.Three coordinate measuring instrument can be defined as a kind of probe with three directions movement.

[0003] When three coordinate measuring instrument is used, the probe can transfer signal in contact or non-contact mode by moving on three mutually perpendicular guide rails, and the displacement measurement system of three axes calculates the coordinate data of each point (x, y, z) of workpiece through data processor or computer, etc.The surface of measuring head is worn out with use, and when the measuring accuracy does not reach standard value, it needs to be disassembled and replaced, but the existing measuring head needs to be disassembled with tools, so that the disassembly difficulty of replacing measuring head device is large. UTILITARIAN CONTENT

[0004] The utility model aims at providing a kind of measuring structure and three coordinate measuring device for special-shaped parts, to solve the above background technique proposed that the existing measuring head device is fixed on three coordinate measuring machine body, the surface of measuring head is worn out with use, and when the measuring accuracy does not reach standard value, it needs to be disassembled and replaced, but the existing measuring head needs to be disassembled with tools, so that the disassembly difficulty of replacing measuring head device is large.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of measuring structure for special-shaped parts, including connecting head and measuring head:

[0006] Slip sleeve, the slip sleeve is arranged at the bottom of connecting head, the slip sleeve has installation slot being arranged at the bottom of slip sleeve, sliding slot being arranged at the periphery of installation slot, limiting sleeve being slidably nested outside slip sleeve and spring being nested outside slip sleeve, the spring is located between limiting sleeve and slip sleeve, the spring provides elastic force to push limiting sleeve to slide displacement outside slip sleeve, the measuring head is slidably arranged in the inside of slip sleeve, the measuring head has slide bar being arranged at the side of measuring head, the slide bar is slidably connected with sliding slot, the limiting sleeve is in abutment with slide bar, the limiting sleeve slides displacement to limit the position of slide bar in sliding slot.

[0007] By adopting the technical scheme, the position of the slide rod sliding into the sliding groove can be limited in the sliding groove, so that the position of the measuring head can be fixed, and when the measuring head is replaced, the measuring head can be disassembled from the sliding sleeve by only sliding the limiting sleeve upward.

[0008] Preferably, the mounting groove is cylindrical, and the top of the measuring head is embedded in the mounting groove and in sliding connection with the mounting groove.

[0009] By adopting the technical scheme, the measuring head can slide up and down in the mounting groove.

[0010] Preferably, the side surface of the sliding sleeve is provided with four sliding grooves, the sliding grooves are inverted L-shaped, the side surface of the measuring head is provided with four slide rods, the four slide rods are in central rotational symmetry around the axis of the measuring head, and the four slide rods are embedded in the four sliding grooves and in sliding connection with the four sliding grooves.

[0011] By adopting the technical scheme, the slide rods can slide along the sliding grooves.

[0012] Preferably, the top of the inclined groove is provided with a limiting groove, and the inclined groove is provided with four inclined grooves, and the four inclined grooves are in abutment with the four slide rods.

[0013] By adopting the technical scheme, the slide rods can contact the inclined grooves during upward sliding and push the limiting sleeve upward.

[0014] Preferably, the limiting groove is arranged at the top of the inclined groove, and the limiting groove and the slide rod are in sliding connection.

[0015] By adopting the technical scheme, when the slide rods slide to the bottom of the sliding grooves, the limiting sleeve can be pushed by the spring force to make the limiting groove be clamped on the slide rods, so that the position of the slide rods can be fixed.

[0016] Preferably, the sliding sleeve is further provided with a groove arranged around the sliding sleeve and a protrusion arranged in the limiting sleeve, and the protrusion is embedded in the groove and in sliding connection with the groove.

[0017] By adopting the technical scheme, the protrusion can slide up and down along the position of the groove.

[0018] A three-coordinate measuring device comprises the measuring structure for special-shaped parts according to any one of the preceding embodiments, and further comprises a measuring instrument body.

[0019] The measuring instrument body is connected with the connecting head, and the measuring instrument body is connected with a Z-axis measuring column at the bottom, a Y-axis measuring column in sliding connection with the Z-axis measuring column, an X-axis measuring column in sliding connection with the Y-axis measuring column, and a base arranged at the bottom of the X-axis measuring column.

[0020] By adopting the technical scheme, the Z-axis measuring column, the Y-axis measuring column and the X-axis measuring column can slide along various tracks, and the coordinate data can be collected by the measuring head.

[0021] Preferably, the measuring instrument body further has a screw rod rotatably arranged in the base, a motor arranged on the side of the base and a placing table slidably arranged on the top of the base, the screw rod is threadedly connected with the placing table and the output end of the motor is connected with the screw rod.

[0022] By adopting the technical scheme, the screw rod can be rotated by the motor, and the sliding displacement of the placing table on the base can be controlled.

[0023] Compared with the prior art, the utility model has the advantages that the connecting head and the measuring head are arranged, the limiting sleeve can slide on the outer side of the sliding sleeve by the spring, the position of the sliding rod in the sliding groove can be limited in the sliding groove, the position of the measuring head can be fixed, when the measuring head is replaced, the measuring head can be disassembled from the sliding sleeve by sliding the limiting sleeve upward, and the disassembly difficulty of the measuring head equipment is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the whole structural schematic diagram of the application;

[0025] Figure 2 It is the whole side view sectional structure schematic diagram of the application;

[0026] Figure 3 It is the connecting head and the measuring head connecting structure schematic diagram of the application;

[0027] Figure 4 It is the connecting head and the measuring head connecting structure schematic diagram of the application;

[0028] Figure 5 It is the sliding sleeve structure schematic diagram of the application;

[0029] Figure 6 It is the limiting sleeve structure schematic diagram of the application;

[0030] Figure 7 It is the measuring head structure schematic diagram of the application.

[0031] In the figure: 1, connecting head; 101, sliding sleeve; 102, mounting groove; 103, sliding groove; 104, limiting sleeve; 105, inclined groove; 106, limiting groove; 107, spring; 108, protruding block; 109, recess; 2, measuring head; 201, sliding rod; 3, measuring instrument body; 301, Z-axis measuring column; 302, Y-axis measuring column; 303, X-axis measuring column; 304, base; 305, screw rod; 306, motor; 307, placing table. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Embodiment one

[0034] Please refer to Figure 1 , Figure 2 and Figure 3 , the embodiment provides a technical solution: a measuring structure for special-shaped parts, comprising a connecting head 1 and a measuring head 2:

[0035] The sliding sleeve 101 is arranged at the bottom of the connecting head 1, the mounting groove 102 is arranged at the bottom of the sliding sleeve 101, the sliding grooves 103 are arranged around the mounting groove 102, the limiting sleeve 104 is slidably nested outside the sliding sleeve 101, the spring 107 is nested outside the sliding sleeve 101, the spring 107 is located between the limiting sleeve 104 and the sliding sleeve 101, the spring 107 provides elastic force to push the limiting sleeve 104 to slide and displace outside the sliding sleeve 101, the measuring head 2 is slidably arranged inside the sliding sleeve 101, the measuring head 2 has the sliding rod 201 arranged at the side of the measuring head 2, the sliding rod 201 is in sliding connection with the sliding groove 103, the limiting sleeve 104 abuts against the sliding rod 201, the limiting sleeve 104 slides and displaces to limit the position of the sliding rod 201 in the sliding groove 103, the limiting sleeve 104 can be pushed to slide outside the sliding sleeve 101 by the spring 107, so that the position of the sliding rod 201 sliding into the sliding groove 103 can be limited in the sliding groove 103, thereby the position of the measuring head 2 can be fixed, so that when the measuring head 2 is replaced, the measuring head 2 can be detached from the sliding sleeve 101 by only sliding the limiting sleeve 104 upwards.

[0036] Embodiment two

[0037] Please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7The embodiment provides a technical scheme: a measuring structure for special-shaped parts, which comprises a connecting head 1 and a measuring head 2:

[0038] The mounting groove 102 is cylindrical, the top of the measuring head 2 is embedded in the mounting groove 102 and is in sliding connection with the mounting groove 102, the measuring head 2 can slide up and down in the mounting groove 102, four slide grooves 103 are formed in the side surface of the sliding sleeve 101, the slide grooves 103 are inverted L-shaped, four slide rods 201 are arranged on the side surface of the measuring head 2, the four slide rods 201 are in central rotational symmetry around the axis of the measuring head 2, the four slide rods 201 are embedded in the four slide grooves 103 and are in sliding connection with the four slide grooves 103, the slide rods 201 can slide in the slide grooves 103, the sliding sleeve 101 further has inclined grooves 105 formed in the side surface of the limiting sleeve 104, the four inclined grooves 105 are in abutment with the four slide rods 201, the slide rods 201 can contact the inclined grooves 105 in the process of sliding upwards and push the limiting sleeve 104 to move upwards, the top of the inclined groove 105 is provided with a limiting groove 106, the limiting groove 106 is in sliding connection with the slide rod 201, when the slide rod 201 slides to the bottom of the slide groove 103, the limiting sleeve 104 can be pushed by the spring 107 to make the limiting groove 106 clamp on the slide rod 201, so that the position of the slide rod 201 is fixed, recesses 109 are formed around the sliding sleeve 101, a protrusion 108 is arranged in the limiting sleeve 104 and is embedded in the recess 109 and is in sliding connection with the recess 109, the protrusion 108 can slide up and down along the position of the recess 109.

[0039] Embodiment three

[0040] Please refer to Figure 1 , Figure 2 and Figure 3 The embodiment provides another technical scheme: a three-coordinate measuring device, which comprises a measuring instrument body 3:

[0041] The measuring instrument body 3 is connected with the connecting head 1, a Z-axis measuring column 301 is arranged at the bottom of the measuring instrument body 3 and is connected with the connecting head 1, a Y-axis measuring column 302 is in sliding connection with the Z-axis measuring column 301, an X-axis measuring column 303 is in sliding connection with the Y-axis measuring column 302, and a base 304 is arranged at the bottom of the X-axis measuring column 303, the Z-axis measuring column 301, the Y-axis measuring column 302 and the X-axis measuring column 303 can slide along various tracks, so that the measuring head 2 can collect coordinate data, a lead screw 305 is rotatably arranged in the base 304, a motor 306 is arranged on the side surface of the base 304, a placing table 307 is slidably arranged on the top of the base 304, the lead screw 305 passes through the placing table 307 and is in threaded connection with the placing table 307, and the output end of the motor 306 is connected with the lead screw 305, so that the lead screw 305 can be driven to rotate by the motor 306, the placing table 307 can be controlled to slide on the base 304, and thus the part to be measured can be moved.

[0042] Working principle: first, by spring 107 push limit sleeve 104 in the outer side of the sliding sleeve 101, so as to be able to limit the position of the sliding rod 201 in the sliding chute 103, so as to fix the position of the measuring head 2, so that when replacing the measuring head 2, only need to slide up the limit sleeve 104 can be removed from the measuring head 2 in the sliding sleeve 101, when installing the new measuring head 2, the four sliding rods 201 around the measuring head 2 are aligned with the sliding chute 103 and pushed up the limit sleeve 104, when the sliding rod 201 slides to the bottom along the sliding chute 103, the limit sleeve 104 can be pushed up by the spring 107, and the limit groove 106 is clamped on the sliding rod 201, so as to fix the position of the sliding rod 201.

[0043] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A measuring structure for a profiled part, characterized in that, The utility model relates to a kind of measuring structure for special-shaped parts, comprising: Connecting head; Slide sleeve, the slide sleeve is arranged at the bottom of connecting head, the slide sleeve has installation slot being arranged at the bottom of slide sleeve, slide groove being arranged around installation slot, limiting sleeve being slidably nested outside slide sleeve and spring being nested outside slide sleeve, the spring is located between limiting sleeve and slide sleeve, the spring provides elastic force to push limiting sleeve to slide displacement outside slide sleeve; Measuring head, the measuring head is slidably arranged in the inside of slide sleeve, the measuring head has slide bar being arranged at the side of measuring head, the slide bar is slidably connected between slide groove, the limiting sleeve is in contact with slide bar, the limiting sleeve is slid to limit the position of slide bar in slide groove.

2. A measuring structure for a profiled part according to claim 1, characterized in that: The installation slot is cylindrical, and the top of the measuring head is embedded in the installation slot and slidably connected therewith.

3. A measuring structure for a profiled part according to claim 1, characterized in that: The side of the slide sleeve is provided with four slide grooves, the slide grooves are inverted L-shaped, the side of the measuring head is provided with four slide bars, the four slide bars are centrally rotationally symmetric around the axis of the measuring head, and the four slide bars are embedded in the four slide grooves and slidably connected therewith.

4. The measuring structure for a profiled part according to claim 1, characterized in that: The slide sleeve further has inclined grooves being arranged at the side of limiting sleeve, the inclined grooves are four, and the four inclined grooves are in contact with the four slide bars.

5. A measuring structure for a profiled part according to claim 4, characterized in that: The top of the inclined groove is provided with a limiting groove, and the limiting groove is slidably connected with the slide bar.

6. A measuring structure for a profiled part according to claim 4, characterized in that: The slide sleeve further has a groove being arranged around the slide sleeve and a protrusion being arranged in the inside of limiting sleeve, the protrusion is embedded in the groove and slidably connected therewith.

7. A three coordinate measuring device characterised in that: The utility model relates to a kind of measuring structure for special-shaped parts, the three-coordinate measuring device further comprises: Measuring instrument body, the measuring instrument body is connected with connecting head, the bottom of the measuring instrument body is connected with the Z-axis measuring column of connecting head, the Y-axis measuring column slidably connected with the Z-axis measuring column, the X-axis measuring column slidably connected with the Y-axis measuring column and the base being arranged at the bottom of X-axis measuring column.

8. A three coordinate measuring device according to claim 7, characterised in that: The measuring instrument body further has screw rod being rotationally arranged in the inside of base, motor being arranged at the side of base and placement table being slidably arranged at the top of base, the screw rod is threadedly connected with the placement table, and the output end of the motor is connected with the screw rod.

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