Detection device

Abstract

A detection device is used for detecting the size of a machining hole of a workpiece and comprises a detection mechanism, the detection mechanism comprises a connecting assembly and a dismounting assembly which are connected, the connecting assembly comprises a connecting plate, a connecting pin, a clamping switch and a plurality of clamping pieces, the connecting pin is inserted into the connecting plate and provided with a first end and a second end which are opposite, and the connecting pin is provided with a through hole; a plurality of sliding holes are formed in the first end, each clamping piece is arranged in the corresponding sliding hole in a sliding mode, the clamping switch is arranged at the first end in a sleeving mode and used for pushing the multiple clamping pieces to move in the sliding holes, the disassembling and assembling assembly comprises a driving piece and a clamping jaw connected to the driving piece, and the clamping jaw clamps the clamping switch; the driving piece drives the clamping jaw to drive the clamping switch to slide along the first end; the knife handle is detachably connected with the second end; the detection piece is provided with a clamping section and a detection section which are connected with each other, the clamping section is inserted into the through hole to be connected with the connecting pin, and the detection section is inserted into the machining hole to detect the size of the machining hole. The detection device can rapidly and accurately detect the size of the processing hole of the workpiece.

Description

Technical Field

[0001] The present application relates to the field of mechanical processing technology, and in particular to a detection device. Background Art

[0002] When machining parts with CNC machine tools, it is often necessary to machine through holes on the workpiece. For holes with high machining accuracy requirements, it is necessary to test the dimensional accuracy after machining. Currently, there are two main methods for testing. One method is off-machine testing, that is, the workpiece is not taken out of the processing machine during machining, and the operator measures it inside the machine. This method is time-consuming and has poor safety. The other method is off-machine testing, that is, the workpiece is taken out after machining, and then measured. If it needs to be repaired, the workpiece needs to be installed in the processing machine again, which is inefficient. Utility Model Content

[0003] In view of the above, it is necessary to provide a detection device that can quickly and accurately detect the size of a machined hole of a workpiece.

[0004] The embodiment of the present application provides a detection device for detecting the size of a machined hole of a workpiece, comprising: a detection mechanism, comprising a connecting component and a disassembly component connected to each other, the connecting component comprising a connecting plate, a connecting pin, a locking switch and a plurality of locking parts, the connecting pin is inserted into the connecting plate and has a first end and a second end opposite to each other, the first end and the second end respectively extend out of the opposite sides of the connecting plate, the connecting pin is provided with a through hole extending along the axial direction of the connecting pin, the first end is provided with a plurality of sliding holes connected to the through hole, the plurality of sliding holes respectively extend radially along the through hole and are arranged around the axis of the through hole, each of the locking parts is slidably arranged in the corresponding sliding hole, and the locking switch is sleeved on the first end and pushes the engaging member to move in the sliding hole; the disassembly and assembly assembly includes a driving member connected to the connecting plate and a clamping claw connected to the driving member, the clamping claw clamps the engaging switch at one end away from the driving member, and the driving member drives the clamping claw to move to drive the engaging switch to slide at the first end; the tool handle is detachably connected to the second end, connected to an external device to drive the detection mechanism to move; the detection member has a clamping section and a detection section that are relatively arranged and connected to each other, the clamping section is inserted into the through hole to connect with the connecting pin, when the clamping section is inserted into the through hole, the engaging switch pushes the engaging member to move to hold the clamping section, and then clamps the detection member, and the detection section detects the size of the processed hole.

[0005] The above-mentioned detection device is provided with a detection mechanism. The detection piece and the tool handle can be connected through the connecting pin in the connecting assembly. The tool handle can be connected to the processing machine, which is convenient for moving the detection mechanism and the detection piece to quickly detect the processing hole of the workpiece. The connecting pin can connect detection pieces of different sizes to detect different processing holes, and has a wide range of applications. Through the driving member and the clamping claw in the disassembly and assembly assembly, the engaging switch can be driven to move along the axis of the connecting pin, so that when the detection section of the detection piece is inserted into the through hole of the connecting pin, the engaging switch pushes the engaging piece to move in the sliding hole, and then the detection section is clamped to realize the connection of the detection piece. Or when disassembling the detection piece, move the engaging switch so that the engaging switch releases the engaging piece, and then the engaging piece releases the detection piece, so as to realize the disassembly of the detection piece. It is easy to replace, effectively improves the detection speed, and improves the working efficiency.

[0006] In some embodiments, the side wall of the connecting pin is provided with two oppositely arranged strip holes; the detection mechanism also includes a pressure detection component, the pressure detection component includes a movable connecting piece, a conductive piece and a pressure detector, the movable connecting piece is connected to the side of the connecting plate facing the first end, the conductive piece is movably inserted in the two strip holes and connected to the movable connecting piece, the pressure detector is connected to one side of the connecting plate, and one end of the conductive piece abuts against the detection head of the pressure detector.

[0007] In some embodiments, the detection device also includes a support frame, the support frame is provided with a plurality of accommodating grooves for accommodating the detection member, and a positioning seat for supporting the connecting plate, the positioning seat is provided with a positioning pin, and the connecting plate is provided with a positioning hole corresponding to the positioning pin, and the positioning pin is used to be inserted into the positioning hole to position the connecting plate.

[0008] In some embodiments, the support frame is also provided with a plurality of flexible members, and the plurality of flexible members are respectively arranged in a plurality of the accommodating grooves to flexibly support the detection member; a groove is provided on a side of the flexible member for contacting the detection member, and the groove is used to accommodate the detection segment of the detection member, and a cross-sectional area of ​​the groove is not larger than a cross-sectional area of ​​the detection segment, so that the flexible member can clamp the detection segment.

[0009] In some embodiments, the engaging part is a spherical structure, the diameter of the sliding hole is not less than the diameter of the engaging part, the length of the sliding hole is not greater than the diameter of the engaging part, a limiting protrusion is provided at the bottom end of the sliding hole toward the through hole, the limiting protrusion is provided around the sliding hole, and the limiting protrusion is used to limit the engaging part.

[0010] In some embodiments, a push portion and an avoidance groove surrounding the connecting pin are provided on one side of the engaging switch close to the connecting pin, and the push portion and the avoidance groove are adjacently arranged along the axial direction of the connecting pin, and the push portion is used to push the engaging member to move to hold the clamping section when it is opposite to the sliding hole, and the avoidance groove is used to receive the engaging member when it is opposite to the sliding hole so that the engaging member releases the clamping section.

[0011] In some embodiments, the connection assembly further includes a limit member, which is connected to the first end and disposed on a side of the engaging switch away from the connecting plate, and is used to limit the engaging switch.

[0012] In some embodiments, the detection mechanism also includes an air pipe joint, which is connected to the conductive member and slidably disposed in the through hole, the conductive member is provided with a first air vent hole which is connected to the air pipe joint and extends axially along the connecting pin, the detection member is provided with a second air vent hole which extends axially along the detection member, and the air pipe joint is used to be connected to an external air supply device to blow air outward through the first air vent hole and the second air vent hole.

[0013] In some embodiments, the clamping section is provided with a first protrusion and a second protrusion at intervals along the axial direction of the connecting pin. When the clamping section is inserted into the through hole, the engaging member abuts between the first protrusion and the second protrusion. The first protrusion and the second protrusion are used to cooperate with the engaging member to limit the detection member.

[0014] In some embodiments, the detection section is provided with a first detection portion, a second detection portion and a third detection portion in sequence along the axial direction of the detection member, the third detection portion is arranged close to the clamping section, the radius of the first detection portion is smaller than the radius of the machining hole, the radius of the second detection portion is equal to the radius of the machining hole, and the radius of the third detection portion is larger than the radius of the machining hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a detection device provided in an embodiment of the present application.

[0016] Figure 2 for Figure 1 A schematic structural diagram of the detection mechanism in the detection device shown.

[0017] Figure 3 for Figure 2 Schematic diagram of the exploded structure of the detection mechanism shown.

[0018] Figure 4 for Figure 3 The cross-sectional structure diagram of the connecting pin along line IV-IV is shown.

[0019] Figure 5 for Figure 2 The schematic diagram of the cross-sectional structure of the detection mechanism shown along the V-V line.

[0020] Figure 6 for Figure 5 The schematic diagram of the structure of the detection mechanism shown in FIG. 1 after the detection member slides in the through hole.

[0021] Figure 7 for Figure 5 The schematic diagram of the structure of the detection mechanism when the detection part is disassembled is shown.

[0022] Figure 8 for Figure 1 A schematic structural diagram of the support frame in the detection device shown.

[0023] Main component symbols

[0024] Detection device 100

[0025] Testing agency 10

[0026] Connecting components 11

[0027] Connecting plate 111

[0028] Positioning hole 1111

[0029] Connecting pin 112

[0030] First End 1121

[0031] Second end 1122

[0032] Through hole 1123

[0033] Sliding hole 1124

[0034] Limiting protrusion 1124a

[0035] Strip hole 1125

[0036] Card switch 113

[0037] Pushing part 1131

[0038] Avoidance slot 1132

[0039] Snap-fitting member 114

[0040] Limiting piece 115

[0041] Disassembly and assembly 12

[0042] Driving member 121

[0043] Gripper 122

[0044] Pressure detection component 13

[0045] Active connection 131

[0046] Conductive parts 132

[0047] First vent hole 1321

[0048] Pressure detector 133

[0049] Trachea connector 14

[0050] Handle 20

[0051] Test piece 30

[0052] Detection segment 31

[0053] First detection unit 311

[0054] Second detection unit 312

[0055] The third detection unit 313

[0056] Clamping section 32

[0057] The first protrusion 321

[0058] The second protrusion 322

[0059] Second vent hole 33

[0060] Support frame 40

[0061] Accommodation slot 41

[0062] Positioning seat 42

[0063] Positioning pin 421

[0064] Flexible parts 43

[0065] Groove 431

[0066] Workpiece 200

[0067] Processing hole 201 DETAILED DESCRIPTION

[0068] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0069] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0070] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication, it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Some embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0071] The embodiments of the present application are further described below in conjunction with the accompanying drawings.

[0072] See also Figures 1 to 3 An embodiment of the present application provides a detection device 100 for detecting the size of a machining hole 201 of a workpiece 200 . The detection device 100 includes a detection mechanism 10 , a tool holder 20 connected to the detection mechanism 10 , and a detection member 30 connected to the detection mechanism 10 .

[0073] Specifically, the detection mechanism 10 includes a connection assembly 11 , which includes a connection plate 111 , a connection pin 112 inserted into the connection plate 111 , a locking switch 113 slidably mounted on the connection pin 112 , and a plurality of locking members 114 installed on the connection pin 112 .

[0074] The connecting plate 111 is a plate-shaped structure and has two positioning holes 1111 .

[0075] See also Figure 3 and Figure 4The connecting pin 112 is a columnar structure. The connecting pin 112 is inserted into the connecting plate 111 and has a first end 1121 and a second end 1122 opposite to each other. The first end 1121 and the second end 1122 extend out of opposite sides of the connecting plate 111, respectively. The connecting pin 112 is provided with a through hole 1123 extending along the axial direction of the connecting pin 112 and penetrating from the first end 1121 to the second end 1122. The first end 1121 is provided with a plurality of sliding holes 1124 connected to the through hole 1123. The plurality of sliding holes 1124 extend radially along the through hole 1123 and are arranged around the axis of the through hole 1123. In this embodiment, eight sliding holes 1124 are provided and are arranged symmetrically about the axis of the through hole 1123. The diameter of the sliding hole 1124 is not less than the diameter of the engaging member 114, so that the sliding hole 1124 can accommodate the corresponding engaging member 114, and the length of the sliding hole 1124 is not greater than the diameter of the engaging member 114. The sliding hole 1124 is provided with a limiting protrusion 1124a at the bottom end thereof facing the through hole 1123. The limiting protrusion 1124a is arranged around the sliding hole 1124 and limits the engaging member 114. The side wall of the connecting pin 112 is provided with two oppositely arranged strip holes 1125, which are connected to the through hole 1123, and the extending direction of the strip hole 1125 is consistent with the axial direction of the through hole 1123.

[0076] See also Figure 3 and Figure 5 The engaging switch 113 is a hollow cylindrical structure, which is slidably sleeved on the first end 1121. The sliding member can slide along the connecting pin 112. The engaging switch 113 is provided with a push portion 1131 and a position-avoiding groove 1132 surrounding the connecting pin 112 on one side close to the connecting pin 112. The push portion 1131 and the position-avoiding groove 1132 are adjacently arranged along the axial direction of the connecting pin 112. The push portion 1131 is arranged around the connecting pin 112, and the position-avoiding groove 1132 is arranged around the connecting pin 112. In this embodiment, the width of the position-avoiding groove 1132 is greater than the diameter of the sliding hole 1124.

[0077] See also Figure 3 The engaging member 114 is a spherical structure. In the present embodiment, the engaging member 114 is a steel ball. The number of the engaging members 114 and the number of the sliding holes 1124 are the same, that is, eight are provided. Each engaging member 114 is slidably provided in a corresponding sliding hole 1124 .

[0078] Understandable, see Figure 4 , Figure 5 and Figure 6 When the locking switch 113 slides along the connecting pin 112, so that the push portion 1131 is opposite to the sliding hole 1124, the push portion 1131 pushes the locking member 114 to move toward the through hole 1123. At this time, the limiting protrusion 1124a can limit the locking member 114 to prevent the locking member 114 from falling into the through hole 1123. Figure 7 When the avoidance groove 1132 is positioned opposite to the sliding hole 1124 , the engaging member 114 can move away from the through hole 1123 under the action of an external force, and at this time, the avoidance groove 1132 can accommodate a portion of the engaging member 114 .

[0079] In this example, see Figure 3 and Figure 5 The connection assembly 11 further includes a limiter 115, which is connected to the first end 1121 and disposed on a side of the engaging switch 113 away from the connecting plate 111, and is used to limit the engaging switch 113. The limiter 115 is a sheet-like structure, fixedly connected to the first end 1121 of the connecting pin 112, and is used to limit the engaging switch 113 to prevent the engaging switch 113 from being separated from the connecting pin 112 from the first end 1121 when sliding along the connecting pin 112.

[0080] See also Figure 2 and Figure 3 , the detection mechanism 10 also includes a disassembly assembly 12 connected to the connecting assembly 11. The disassembly assembly 12 includes a driving member 121 connected to the connecting plate 111 and a clamping jaw 122 connected to the driving member 121. The clamping jaw 122 clamps the engaging switch 113 at one end away from the driving member 121, and the driving member 121 drives the clamping jaw 122 to move to drive the engaging switch 113 to slide at the first end 1121. In this embodiment, the driving member 121 is a cylinder, the clamping jaw 122 is a U-shaped structure, and the extending direction of the clamping jaw 122 is perpendicular to the moving direction of the output end of the driving member 121. The clamping jaw 122 clamps the two sides of the engaging switch 113. When the driving member 121 drives the clamping jaw 122 to move, the clamping jaw 122 clamps the engaging switch 113 and slides along the first end 1121 of the connecting pin 112.

[0081] In this example, see Figure 2 and Figure 3The detection mechanism 10 further includes a pressure detection assembly 13, which includes a movable connection member 131, a conductive member 132 and a pressure detector 133. The movable connection member 131 is connected to the side of the connecting plate 111 facing the first end 1121, the conductive member 132 is movably inserted in the two bar holes 1125 and connected to the movable connection member 131, the pressure detector 133 is connected to one side of the connecting plate 111, and one end of the conductive member 132 abuts against the detection head of the pressure detector 133. The movable connection member 131 is a linear bearing, and the conductive member 132 is a rod-shaped structure. The conductive member 132 is movably inserted in the two bar holes 1125. When the conductive member 132 is subjected to external force, the conductive member 132 slides along the bar holes 1125, and the movable connection member 131 limits the conductive member 132. The movable connection member 131 can guide the movement direction of the conductive member 132 and prevent the conductive member 132 from falling off from the bar holes 1125. One end of the conductive member 132 abuts against the detection head of the pressure detector 133. When the conductive member 132 slides along the strip hole 1125, it pushes against the detection head of the pressure detector 133, so that the pressure detector 133 can detect the magnitude of the force borne by the conductive member 132. In this embodiment, an L-shaped block is provided at one end of the conductive member 132 opposite to the pressure detector 133, and the L-shaped block abuts against the detection head of the pressure detector 133.

[0082] In this embodiment, the pressure detector 133 is an intelligent push-pull force gauge, and the pressure detector 133 can transmit the detection data to a processing center of an external device (not shown) in real time.

[0083] In this example, see Figure 1 and Figure 2 The detection device 100 further includes a tool handle 20, which is detachably connected to the second end 1122 of the connecting pin 112 and is used to connect an external device to drive the detection mechanism 10 to move. The external device may be a CNC machining machine.

[0084] In this example, see Figure 3 and Figure 8 The detection device 100 also includes a detection member 30, which has a clamping section 32 and a detection section 31 that are relatively arranged and connected to each other. The clamping section 32 is inserted into the through hole 1123 to be connected to the connecting pin 112. When the clamping section 32 is inserted into the through hole 1123, the engaging switch 113 pushes the engaging member 114 to move to hold the clamping section 32, thereby clamping the detection member 30, and the detection section 31 detects the size of the processing hole 201.

[0085] In this example, see Figure 5 and Figure 8The clamping section 32 is provided with a first protrusion 321 and a second protrusion 322 at intervals along the axial direction of the connecting pin 112. When the clamping section 32 is inserted into the through hole 1123, the engaging member 114 abuts between the first protrusion 321 and the second protrusion 322. The first protrusion 321 and the second protrusion 322 are used to cooperate with the engaging member 114 to limit the detection member 30. Figure 5 and Figure 6 When installing the detection member 30, insert the clamping section 32 of the detection member 30 into the through hole 1123 of the connecting pin 112, and make the position between the first protrusion 321 and the second protrusion 322 of the clamping section 32 correspond to the sliding hole 1124, then move the locking switch 113 so that the push portion 1131 is opposite to the sliding hole 1124, and push the locking member 114 to move toward the through hole 1123, thereby holding the clamping section 32. See Figure 7 When disassembling the detection member 30, move the locking switch 113 so that the avoidance groove 1132 is opposite to the sliding hole 1124, and then move the detection member 30 away from the first end 1121 of the connecting pin 112, and the first protrusion 321 of the clamping section 32 pushes the locking member 114 away from the through hole 1123, so that the clamping section 32 can be moved out of the connecting pin 112, and the disassembly of the detection member 30 is completed.

[0086] In this example, see Figure 1 and Figure 8 , the detection section 31 is provided with a first detection portion 311, a second detection portion 312 and a third detection portion 313 in sequence along the axial direction of the detection member 30, the third detection portion 313 is provided close to the clamping section 32, the radius of the first detection portion 311 is smaller than the radius of the machining hole 201, the radius of the second detection portion 312 is equal to the radius of the machining hole 201, and the radius of the third detection portion 313 is larger than the radius of the machining hole 201. It can be understood that when detecting the machining hole 201 of the workpiece 200, the detection section 31 is inserted into the machining hole 201, and the first detection portion 311, the second detection portion 312 and the third detection portion 313 move toward the machining hole 201 in sequence. If the machining hole 201 is of standard size, the first detection portion 311 and the second detection portion 312 can be inserted into the machining hole 201, but the third detection portion 313 cannot be inserted into the machining hole 201. Other cases are considered as unqualified processing hole 201. For example, if the first detection part 311 cannot be inserted into the processing hole 201, it means that the processing hole 201 is too small; if the third detection part 313 can be inserted into the processing hole 201, it means that the processing hole 201 is too large.

[0087] When the detection end is inserted into the processing hole 201 and cannot continue to move toward the processing hole 201, such as when the third detection portion 313 is clamped at the opening position of the processing hole 201, the detection member 30 no longer moves, and the detection mechanism 10 still moves toward the workpiece 200. At this time, the clamping section 32 of the detection member 30 pushes the conductive member 132 to move along the strip hole 1125, and then the conductive member 132 can push the detection head of the pressure detector 133, and the pressure detector 133 detects pressure. It can be understood that when the pressure detector 133 detects pressure, it means that the detection member 30 no longer moves toward the workpiece 200.

[0088] In this example, see Figure 1 and Figure 8 The detection device 100 further includes a support frame 40, which is provided with a plurality of receiving slots 41 for receiving the detection member 30. The receiving slots 41 may be provided with four, five, six, etc., and may be provided according to the number of the detection members 30 required in practice, which is not limited here. It is understood that a plurality of detection members 30 of different sizes may be provided to detect the processed holes 201 of different sizes. During the detection, the detection members 30 of the corresponding sizes may be connected through the connecting pins 112 in the detection mechanism 10.

[0089] The support frame 40 is also provided with a positioning seat 42 for supporting the connecting plate 111. The positioning seat 42 is provided with a positioning pin 421, and the positioning pin 421 is used to be inserted into the positioning hole 1111 to position the connecting plate 111. In this embodiment, two positioning pins 421 are provided on the positioning seat 42, and the positions of the two positioning pins 421 correspond to the positions of the two positioning holes 1111 on the connecting plate 111. When the detection device 100 is not used, the detection mechanism 10 can be placed on the positioning seat 42, and the connecting plate 111 is positioned by the positioning pins 421 and the positioning holes 1111.

[0090] In this example, see Figure 1 , Figure 3 and Figure 8The support frame 40 is also provided with a plurality of flexible members 43, and the plurality of flexible members 43 are respectively arranged in a plurality of receiving grooves 41 to flexibly support the detection member 30. A groove 431 is provided on one side of the flexible member 43 for contacting the detection member 30, and the groove 431 is used to accommodate the detection section 31 of the detection member 30, and the area of ​​the groove 431 is not larger than the cross-sectional area of ​​the detection section 31, so that the flexible member 43 can clamp the detection section 31. The flexible member 43 is made of rubber material, and by arranging the flexible member 43 in the receiving groove 41, the detection member 30 can be protected when the detection member 30 is placed or installed. The groove 431 on the flexible member 43 is adapted to the structure of the first detection part 311, and the area of ​​the groove 431 is not larger than the cross-sectional area of ​​the first detection part 311, so that when the detection member 30 is placed in the receiving groove 41, the flexible member 43 can clamp the first detection part 311. When the detection member 30 needs to be removed from the connecting pin 112, first insert the first detection portion 311 of the detection member 30 into the groove 431, and then the driving member 121 clamps the engaging switch 113 through the clamping claw 122 and moves along the connecting pin 112, so that the avoidance groove 1132 corresponds to the sliding hole 1124. At this time, the detection mechanism 10 is driven by the external device through the handle 20 to move away from the support frame 40, and the flexible member 43 can clamp the detection member 30, so that the first protrusion 321 of the detection member 30 can push the engaging member 114 to move away from the through hole 1123 in the sliding hole 1124, so that the detection member 30 can be detached from the connecting pin 112.

[0091] In the present embodiment, the detection mechanism 10 further comprises an air pipe joint 14, which is connected to the conductive member 132 and slidably disposed in the through hole 1123. The conductive member 132 is provided with a first vent hole 1321 which is connected to the air pipe joint 14 and extends axially along the connecting pin 112. The detection member 30 is provided with a second vent hole 33 which extends axially along the detection member 30. The air pipe joint 14 is used to communicate with an external air supply device (not shown) and then blow air outward through the first vent hole 1321 and the second vent hole 33. It can be understood that the air pipe of the external air supply device can be inserted into the through hole 1123 through the strip hole 1125 and then communicate with the air pipe joint 14. When the connecting pin 112 is connected to the detection member 30, the air pipe joint 14 is connected with the first vent hole 1321 and the second vent hole 33, and then the processing hole 201 can be blown before being inserted into the processing hole 201 to clean impurities such as processing debris to avoid affecting the accuracy of the detection.

[0092] The working process of the detection device 100 provided in the embodiment of the present application is roughly as follows:

[0093] First, the external device is connected to the knife handle 20, and then the detection mechanism 10 can be moved. The external device drives the detection mechanism 10 to move to the position corresponding to the detection member 30 on the support frame 40 through the knife handle 20. At this time, the driving member 121 drives the engaging switch 113 to move along the connecting pin 112 through the clamping claw 122, so that the avoidance groove 1132 is opposite to the sliding hole 1124. Then the detection mechanism 10 moves toward the detection member 30, so that the clamping section 32 of the detection member 30 is inserted into the through hole 1123, and the position between the first protrusion 321 and the second protrusion 322 corresponds to the sliding hole 1124. Then the driving member 121 drives the engaging switch 113 to move along the connecting pin 112 through the clamping claw 122, so that the push portion 1131 is opposite to the sliding hole 1124, and the push portion 1131 pushes the engaging member 114 to move toward the through hole 1123, and then abuts against the clamping section 32, so as to realize the engaging detection member 30. Then, the external device can drive the detection mechanism 10 and the detection member 30 to be inserted into the processing hole 201 of the workpiece 200 for detection.

[0094] During the inspection, if the first inspection part 311 and the second inspection part 312 can be inserted into the processing hole 201, but the third inspection part 313 cannot be inserted into the processing hole 201, it means that the processing hole 201 is qualified. If the first inspection part 311 can be inserted into the processing hole 201, but the second inspection part 312 cannot be inserted into the processing hole 201, it means that the size of the processing hole 201 is too small. If the first inspection part 311, the second inspection part 312 and the third inspection part 313 can all be inserted into the processing hole 201, it means that the size of the processing hole 201 is too large.

[0095] When the detection member 30 can no longer be inserted into the processing hole 201, the detection member 30 stops moving, while the detection mechanism 10 continues to move toward the workpiece 200. At this time, the clamping section 32 of the detection member 30 pushes the conductive member 132, and the conductive member 132 pushes the pressure detector 133. The pressure detector 133 detects the pressure. When the pressure is greater than the preset value, the detection is completed, and the external device drives the tool handle 20 and the detection mechanism 10 to move away from the workpiece 200.

[0096] After the detection is completed, the external device drives the detection mechanism 10 and the detection member 30 to move toward the support frame 40 through the knife handle 20, and inserts the detection member 30 into the receiving groove 41, and the first detection portion 311 of the detection member 30 is inserted into the groove 431 of the flexible member 43. The driving member 121 drives the clamping switch 113 to move along the connecting pin 112, so that the avoidance groove 1132 and the sliding hole 1124 are opposite to each other. Then, the external device drives the detection mechanism 10 away from the support frame 40 through the knife handle 20, at which time the flexible member 43 can clamp the detection member 30, and the detection member 30 does not change its position during the process of the detection mechanism 10 moving away from the support frame 40, and the first protrusion 321 of the detection member 30 can push the clamping member 114 to move along the sliding hole 1124 away from the through hole 1123, thereby causing the clamping member 114 to release the detection member 30, so that the detection member 30 is separated from the detection mechanism 10. Then the external device drives the detection mechanism 10 to be placed on the positioning seat 42 of the support frame 40.

[0097] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A detection device for detecting the size of a machined hole of a workpiece, characterized in that: include: The detection mechanism comprises a connecting component and a disassembly component connected to each other, the connecting component comprises a connecting plate, a connecting pin, a locking switch and a plurality of locking members, the connecting pin is inserted into the connecting plate and has a first end and a second end opposite to each other, the first end and the second end respectively extend out of the opposite sides of the connecting plate, the connecting pin is provided with a through hole extending along the axial direction of the connecting pin, the first end is provided with a plurality of sliding holes connected with the through hole, the plurality of sliding holes respectively extend radially along the through hole and are arranged around the axis of the through hole, each of the locking members is slidably arranged in the corresponding sliding hole, the locking switch is sleeved on the first end and pushes the locking member to move in the sliding hole; the disassembly component comprises a driving member connected to the connecting plate and a clamping claw connected to the driving member, the clamping claw clamps the locking switch at an end away from the driving member, and the driving member drives the clamping claw to move so as to drive the locking switch to slide at the first end; A tool handle, detachably connected to the second end, connected to an external device to drive the detection mechanism to move; The detection member comprises a clamping section and a detection section which are arranged opposite to and connected to each other. The clamping section is inserted into the through hole and connected to the connecting pin. When the clamping section is inserted into the through hole, the engaging switch pushes the engaging member to move to hold the clamping section, thereby clamping the detection member. The detection section detects the size of the processed hole.

2. The detection device according to claim 1, characterized in that The side wall of the connecting pin is provided with two strip-shaped holes arranged opposite to each other; The detection mechanism also includes a pressure detection component, which includes a movable connecting part, a conductive part and a pressure detector. The movable connecting part is connected to the side of the connecting plate facing the first end, the conductive part is movably inserted in the two strip holes and connected to the movable connecting part, the pressure detector is connected to one side of the connecting plate, and one end of the conductive part abuts against the detection head of the pressure detector.

3. The detection device according to claim 1, characterized in that: It also includes a support frame, which is provided with a plurality of accommodating grooves for accommodating the detection member, and a positioning seat for supporting the connecting plate, the positioning seat is provided with a positioning pin, and the connecting plate is provided with a positioning hole corresponding to the positioning pin, and the positioning pin is used to be inserted into the positioning hole to position the connecting plate.

4. The detection device according to claim 3, characterized in that: The support frame is further provided with a plurality of flexible members, and the plurality of flexible members are respectively arranged in the plurality of accommodating grooves to flexibly support the detection member; A groove is provided on one side of the flexible member for contacting the detection member, and the groove is used to accommodate the detection section of the detection member. The cross-sectional area of ​​the groove is not larger than the cross-sectional area of ​​the detection section, so that the flexible member can clamp the detection section.

5. The detection device according to claim 1, characterized in that: The engaging piece is a spherical structure, the diameter of the sliding hole is not less than the diameter of the engaging piece, the length of the sliding hole is not greater than the diameter of the engaging piece, a limiting protrusion is provided at the bottom end of the sliding hole toward the through hole, the limiting protrusion is provided around the sliding hole, and the limiting protrusion is used to limit the engaging piece.

6. The detection device according to claim 1, characterized in that: A push portion and an avoidance groove surrounding the connecting pin are provided on one side of the engaging switch close to the connecting pin, the push portion and the avoidance groove being adjacent to each other along the axial direction of the connecting pin, the push portion being used to push the engaging member to move to hold the clamping section when relative to the sliding hole, and the avoidance groove being used to receive the engaging member when relative to the sliding hole so that the engaging member releases the clamping section.

7. The detection device according to claim 1, characterized in that: The connection assembly further includes a limiting member, which is connected to the first end and is disposed on a side of the engaging switch away from the connecting plate, and is used to limit the engaging switch.

8. The detection device according to claim 2, characterized in that: The detection mechanism also includes an air pipe joint, which is connected to the conductive member and slidably disposed in the through hole. The conductive member is provided with a first air vent hole that is connected to the air pipe joint and extends axially along the connecting pin. The detection member is provided with a second air vent hole that extends axially along the detection member. The air pipe joint is used to be connected to an external air supply device to blow air outward through the first air vent hole and the second air vent hole.

9. The detection device according to claim 1, characterized in that: The clamping section is provided with a first protrusion and a second protrusion at intervals along the axial direction of the connecting pin. When the clamping section is inserted into the through hole, the engaging member abuts between the first protrusion and the second protrusion. The first protrusion and the second protrusion are used to cooperate with the engaging member to limit the detection member.

10. The detection device according to claim 1, characterized in that: The detection section is provided with a first detection portion, a second detection portion and a third detection portion in sequence along the axial direction of the detection piece. The third detection portion is arranged close to the clamping section. The radius of the first detection portion is smaller than the radius of the processing hole, the radius of the second detection portion is equal to the radius of the processing hole, and the radius of the third detection portion is larger than the radius of the processing hole.

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