Measuring head for measuring machine

Abstract

The utility model discloses a measuring head for a measuring machine, and relates to the technical field of measuring machines, in particular to a measuring head for a measuring machine, which comprises a measuring head mechanism and is used for acquiring the size, the shape and the position of a workpiece, and the measuring head mechanism comprises a measuring head base, an upper shell and a lower shell, the outer wall of the lower end of the upper shell is provided with external threads; the lengthened main body comprises an extension shell mounted at the lower end of the upper shell, a first fixed contact mounted at the upper end of the extension shell, a blind hole eccentrically mounted at the upper end of the extension shell, three second positioning balls equally mounted at the lower end of the extension shell, and a second positioning pin eccentrically mounted at the lower end of the extension shell; the lengthened main body is additionally arranged between the measuring head base and the measuring head unit, so that the measuring depth of the measuring head unit is increased; moreover, the connection between the measuring head unit and the measuring head base and the connection between the measuring head unit and the lengthened main body are similar, so that the measuring head unit is fixed in a magnetic attraction mode, and the replacement is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring machines, and specifically relates to a probe for a measuring machine. Background Art

[0002] A measuring machine is a process test instrument widely used in the field of mechanical engineering. It is mainly used to accurately measure parameters such as the size, shape, and position of workpieces;

[0003] Upon inspection, the publication number: CN218097678U discloses a probe for a coordinate measuring machine. In this technology, "a probe for a coordinate measuring machine is disclosed, which relates to the technical field of probes for coordinate measuring machines, including a transmission support column. The left end of the transmission support column is fixedly connected with a detection long rod. Four equally spaced empty slots are opened inside the transmission support column. Two annular pieces are fixedly connected to the outer surface of the detection long rod" and other technical solutions, and has technical effects such as "by setting components such as a wire, a sliding block, and a probe head, through the mutual cooperation relationship between the wire component and the sliding block component, the wire component can drive the sliding block by pulling, and thus the effect that the device can adjust the displacement of the probe head through the sliding block is achieved".

[0004] When the probe of a measuring machine is used to detect complex parts, it is necessary to use probe units with different probe lengths and shapes to complete the measurement; when replacing the probe, it is not only a physical disassembly and installation, but also necessary to configure and calibrate the probe in the software to ensure that the new probe can accurately cooperate with the measurement system. This high degree of integration makes the replacement of the probe relatively complex. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a probe for a measuring machine, which has the characteristics of extending the measurement depth of the probe unit by adding an extension body between the probe base and the probe unit; and, the connection between the probe unit and the probe base is the same as the connection between the probe unit and the extension body, so that the probe unit is fixed by magnetic attraction, and it is convenient and fast to replace.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: A probe for a measuring machine, including a probe mechanism for collecting the size, shape, and position of a workpiece, and the probe mechanism includes:

[0007] A probe base, including an upper shell fixed to the lower end of the probe shank, and an external thread opened on the outer wall of the lower end of the upper shell;

[0008] The extended body comprises an extension shell installed at the lower end of the upper shell, a first fixed contact installed at the upper end of the extension shell, a blind hole installed eccentrically at the upper end of the extension shell, three second positioning balls installed equally at the lower end of the extension shell, a second positioning pin installed eccentrically at the lower end of the extension shell, a second magnet installed inside the lower end of the extension shell, and second elastic contacts installed at both sides of the lower end of the extension shell, wherein the second elastic contacts are connected to the first fixed contact;

[0009] The probe unit comprises a lower shell installed at the lower end of the extended shell, a third magnet installed at the upper end of the lower shell, three V-shaped grooves equally divided at the upper end of the lower shell, and a second fixed contact installed at the upper end of the lower shell.

[0010] Preferably, the probe base also includes three first positioning balls equally divided at the lower end of the upper shell, a first positioning pin eccentrically installed at the lower end of the upper shell, a first magnet installed inside the lower end of the upper shell, and first elastic contacts installed on both sides of the lower end of the upper shell.

[0011] Preferably, the probe unit also includes a trigger member installed at the lower end of the lower shell body, a measuring needle installed at the lower end of the trigger member, a third magnet cooperates with the first magnet and the second magnet, a V-shaped groove cooperates with the first positioning ball and the second positioning ball, and a second fixed contact cooperates with the first elastic contact and the second elastic contact.

[0012] Preferably, the extended body further comprises a nut sleeved on the upper end of the extension shell, and the nut cooperates with the external thread.

[0013] Preferably, the probe base further comprises a circuit board mounted on the upper end of the upper shell, and the first elastic contact is connected to the circuit board, and an indicator light is mounted on the outer wall of the upper shell, and the indicator light is connected to the circuit board.

[0014] Preferably, the probe mechanism further comprises an aviation plug installed at one end of the upper shell, and the aviation plug is connected to the circuit board, and a wire installed in the aviation plug is inserted into the aviation plug.

[0015] Beneficial Effects

[0016] The utility model provides a probe for a measuring machine. Compared with the prior art, it has the following beneficial effects:

[0017] (1) After the probe unit is connected and installed with the extension body, the extension body is then installed with the probe base, and the first positioning pin is connected with the blind hole for positioning. At the same time, the first elastic contact is inserted and connected with the first fixed contact, so that the signal of the extension body and the probe base is connected, so that the measuring depth of the probe unit can be extended by installing the extension body between the probe base and the probe unit.

[0018] (2) When the probe unit is directly installed on the probe base, the first magnet and the third magnet are adsorbed and fixed. At the same time, the first positioning ball cooperates with the V-groove for positioning. Moreover, the first elastic contact and the second fixed contact are inserted and connected, enabling the signal connection between the probe unit and the probe base. And the connection between the probe unit and the probe base is the same as that between the probe unit and the extension body, so that the probe unit is fixed by magnetic attraction, which is convenient and fast to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a schematic structural diagram of the probe unit installed on the probe base through the extension body in the present utility model;

[0020] Figure 2 FIG. is a schematic structural diagram of the probe unit directly installed on the probe base in the present utility model;

[0021] Figure 3 FIG. is a schematic structural diagram of the probe base in the present utility model;

[0022] Figure 4 FIG. is a schematic structural diagram of the extension body in the present utility model;

[0023] Figure 5 FIG. is a schematic structural diagram of the probe unit in the present utility model.

[0024] In the figure: 1. Probe mechanism; 11. Probe base; 111. Probe shank; 112. Upper housing; 113. First positioning ball; 114. First positioning pin; 115. First magnet; 116. External thread; 117. First elastic contact; 118. Circuit board; 119. Indicator light; 12. Extension body; 121. Nut; 122. Extension housing; 123. First fixed contact; 124. Blind hole; 125. Second positioning ball; 126. Second positioning pin; 127. Second magnet; 128. Second elastic contact; 13. Probe unit; 131. Lower housing; 132. Trigger; 133. Probe needle; 134. Third magnet; 135. V-groove; 136. Second fixed contact; 14. Aviation plug; 15. Wire. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-5, the present utility model provides a probe technical solution for a measuring machine: A probe for a measuring machine, including a probe mechanism 1 and used for collecting the dimensions, shapes, and positions of workpieces. The probe mechanism 1 includes:

[0027] A probe base 11, including an upper housing 112 fixed to the lower end of a probe shank 111, and an external thread 116 provided on the outer wall of the lower end of the upper housing 112;

[0028] An extension body 12, including an extension housing 122 installed at the lower end of the upper housing 112, a first fixed contact 123 installed at the upper end of the extension housing 122, a blind hole 124 eccentrically installed at the upper end of the extension housing 122, three second positioning balls 125 equally divided and installed at the lower end of the extension housing 122, a second positioning pin 126 eccentrically installed at the lower end of the extension housing 122, a second magnet 127 installed inside the lower end of the extension housing 122, and second elastic contacts 128 installed on both sides of the lower end of the extension housing 122, and the second elastic contacts 128 are connected to the first fixed contact 123;

[0029] A probe unit 13, including a lower housing 131 installed at the lower end of the extension housing 122, a third magnet 134 installed at the upper end inside the lower housing 131, three V-shaped grooves 135 equally divided and opened at the upper end of the lower housing 131, and a second fixed contact 136 installed at the upper end of the lower housing 131.

[0030] In this implementation scheme, after the probe unit 13 is connected and installed with the extension body 12, then the extension body 12 is installed with the probe base 11, and the first positioning pin 114 is connected to the blind hole 124 for positioning. At the same time, the first elastic contact 117 and the first fixed contact 123 are inserted and connected, so that the signals of the extension body 12 and the probe base 11 are connected, enabling the measurement depth of the probe unit 13 to be extended by adding the extension body 12 between the probe base 11 and the probe unit 13.

[0031] Specifically, the probe base 11 further includes three first positioning balls 113 equally divided and installed at the lower end of the upper housing 112, a first positioning pin 114 eccentrically installed at the lower end of the upper housing 112, a first magnet 115 installed inside the lower end of the upper housing 112, and first elastic contacts 117 installed on both sides of the lower end of the upper housing 112.

[0032] In this embodiment, when the probe unit 13 is directly installed with the probe base 11, the first magnet 115 and the third magnet 134 are adsorbed and fixed. At the same time, the first positioning balls 113 and the V-shaped grooves 135 cooperate for positioning, and the first elastic contacts 117 and the second fixed contacts 136 are inserted and connected, so that the signals of the probe unit 13 and the probe base 11 are connected.

[0033] Specifically, the probe unit 13 further includes a trigger member 132 installed at the lower end of the lower housing 131, a probe 133 installed at the lower end of the trigger member 132. The third magnet 134 cooperates with the first magnet 115 and the second magnet 127. The V-shaped groove 135 cooperates with the first positioning ball 113 and the second positioning ball 125. The second fixed contact 136 cooperates with the first elastic contact 117 and the second elastic contact 128.

[0034] In this embodiment, the connection between the probe unit 13 and the probe base 11 is the same as the connection between the probe unit 13 and the extension body 12, so that the probe unit 13 is fixed by magnetic attraction, which is convenient and fast to replace.

[0035] Specifically, the extension body 12 further includes a nut 121 sleeved and installed at the upper end of the extension housing 122, and the nut 121 cooperates with the external thread 116.

[0036] In this embodiment, after the extension body 12 is connected to the probe base 11, the nut 121 is threadedly connected to the external thread 116 by rotation, so as to fix the extension body 12 to the probe base 11.

[0037] Specifically, the probe base 11 further includes a circuit board 118 installed at the upper end inside the upper housing 112, and the first elastic contact 117 is connected to the circuit board 118. An indicator light 119 is installed on the outer wall of the upper housing 112, and the indicator light 119 is connected to the circuit board 118.

[0038] In this embodiment, the signal of the probe unit 13 can be connected to the circuit board 118 and the status can be displayed through the indicator light 119.

[0039] Specifically, the probe mechanism 1 further includes a connector 14 installed at one end of the upper housing 112, and the connector 14 is connected to the circuit board 118. A wire 15 is inserted and installed on the connector 14.

[0040] In this embodiment, the status signal can be connected to the measuring machine from the connector 14 through the wire 15.

[0041] The working principle and usage process of the present utility model: First, when the probe unit 13 is directly installed on the probe base 11, the first magnet 115 is adsorbed and fixed to the third magnet 134. At the same time, the first positioning ball 113 cooperates with the V-shaped groove 135 for positioning. Moreover, the first elastic contact 117 and the second fixed contact 136 are inserted and connected, so that the signal connection between the probe unit 13 and the probe base 11 is realized; and, the signal is connected to the circuit board 118 and the status is displayed through the indicator light 119, and the signal is connected to the measuring machine from the connector 14 through the wire 15 through the circuit board 118;

[0042] When it is necessary to extend the measurement depth, in the same way as the connection method between the probe unit 13 and the probe base 11, connect the probe unit 13 to the extension body 12, then install the extension body 12 on the probe base 11, and connect the first positioning pin 114 to the blind hole 124 for positioning. At the same time, insert and connect the first elastic contact 117 and the first fixed contact 123 so that the signals of the extension body 12 and the probe base 11 are connected. Then, rotate the nut 121 to be threadedly connected with the external thread 116, thereby fixing the extension body 12 to the probe base 11, so that the measurement depth of the probe unit 13 can be extended by adding the extension body 12 between the probe base 11 and the probe unit 13.

[0043] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A probe for a measuring machine, characterized in that: The invention comprises a probe mechanism (1) and is used for collecting the size, shape and position of a workpiece. The probe mechanism (1) comprises: The probe base (11) comprises an upper shell (112) fixed at the lower end of the probe handle (111), and an external thread (116) formed on the outer wall of the lower end of the upper shell (112); The extended body (12) comprises an extension shell (122) mounted at the lower end of the upper shell (112), a first fixed contact (123) mounted at the upper end of the extension shell (122), a blind hole (124) mounted eccentrically at the upper end of the extension shell (122), three second positioning balls (125) mounted equally at the lower end of the extension shell (122), a second positioning pin (126) mounted eccentrically at the lower end of the extension shell (122), a second magnet (127) mounted inside the lower end of the extension shell (122), and second elastic contacts (128) mounted on both sides of the lower end of the extension shell (122), wherein the second elastic contacts (128) are connected to the first fixed contacts (123); The probe unit (13) comprises a lower shell (131) mounted at the lower end of the extension shell (122), a third magnet (134) mounted at the upper end of the lower shell (131), three V-shaped grooves (135) equally spaced at the upper end of the lower shell (131), and a second fixed contact (136) mounted at the upper end of the lower shell (131).

2. The probe for a measuring machine according to claim 1, wherein: The probe base (11) further comprises three first positioning balls (113) equally spaced apart from each other at the lower end of the upper shell (112), a first positioning pin (114) eccentrically mounted at the lower end of the upper shell (112), a first magnet (115) mounted inside the lower end of the upper shell (112), and first elastic contacts (117) mounted on both sides of the lower end of the upper shell (112).

3. The probe for a measuring machine according to claim 1, characterized in that: The probe unit (13) further comprises a trigger member (132) mounted at the lower end of the lower housing (131), a probe (133) mounted at the lower end of the trigger member (132), a third magnet (134) matched with the first magnet (115) and the second magnet (127), a V-shaped groove (135) matched with the first positioning ball (113) and the second positioning ball (125), and a second fixed contact (136) matched with the first elastic contact (117) and the second elastic contact (128).

4. A probe for a measuring machine according to claim 1, characterized in that: The elongated body (12) further comprises a nut (121) sleeved and mounted on the upper end of the extension shell (122), and the nut (121) matches the external thread (116).

5. The probe for a measuring machine according to claim 1, characterized in that: The probe base (11) further comprises a circuit board (118) mounted on the upper end of the upper shell (112), and the first elastic contact (117) is connected to the circuit board (118); an indicator light (119) is mounted on the outer wall of the upper shell (112), and the indicator light (119) is connected to the circuit board (118).

6. The probe for a measuring machine according to claim 5, characterized in that: The probe mechanism (1) further comprises an aviation plug (14) mounted on one end of the upper housing (112), the aviation plug (14) being connected to the circuit board (118), and a wire (15) being inserted and mounted on the aviation plug (14).

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