Indirect detection device

Abstract

The utility model discloses an indirect detection device. The indirect detection device comprises a mounting base, a sensing part, a detection part and a reset part. A moving channel, a mounting channel and a first communicating opening communicating with the moving channel are formed in the mounting base. The sensing component is slidably mounted on the moving channel in the axial direction of the moving channel and comprises a moving body and a to-be-sensed piece, and the moving body is provided with an abutting end and an extending end. And the abutting end part is arranged to extend out of the first communication port from the moving channel and retract into the moving channel through the first communication port. The detection part is inserted into the mounting channel, and when the sensing part moves in the axial direction of the moving channel towards the end, away from the mounting base and forming the first communication opening, of the mounting base, the moving path of the to-be-sensed part intersects with the sensing range of the detection part.

Description

Technical Field

[0001] The utility model relates to a detection device technology, in particular to an indirect detection device. Background Art

[0002] When using welding fixtures to process car cars, different types of sensors are needed to detect different parts. However, the installation space of the fixture is limited, and installing a large number of sensors on the same welding fixture will bring considerable difficulties to the production and maintenance of the device.

[0003] CN104101913A discloses an indirect sensing device for nut detection. The patent shows that when the detection pin hits the nut and is pressed down by the nut, the detection pin drives the moving shaft and the connecting shaft to move downward, the connecting shaft squeezes the spring and moves downward, and when the connecting shaft moves to the notch of the guide shaft, the proximity sensor senses the existence of the connecting shaft and sends a signal to confirm the existence of the nut. However, the installation position of the spring is opposite to the proximity sensor, and the device will be compressed or shaken under the action of external force and then accidentally touch the proximity sensor, resulting in inaccurate detection results of the proximity sensor. Utility Model Content

[0004] In order to achieve at least one of the above advantages of the present invention, the present invention provides an indirect detection device, the indirect detection device comprising:

[0005] A mounting seat, wherein the mounting seat forms a moving channel, a mounting channel, and a first communication port communicating with the moving channel, and an axis of the moving channel intersects with an axis of the mounting channel;

[0006] a sensing component, the sensing component is slidably mounted on the moving channel along the axial direction of the moving channel, the sensing component comprises a moving body and a to-be-sensed member, the moving body has an abutting end and an extending end, and the abutting end is configured to be able to extend from the moving channel to the first communicating port and retract into the moving channel via the first communicating port, in an initial state, the abutting end remains extended from the first communicating port, and the to-be-sensed member is mounted on the extending end;

[0007] A detection member, the detection member is plugged into the mounting channel, when the sensing member moves along the axial direction of the moving channel toward one end away from the mounting seat forming the first communication port, the moving path of the member to be sensed intersects with the sensing range of the detection member, and when the sensing member is in an initial state, the member to be sensed moves away from the sensing range of the detection member;

[0008] A reset member, the movable body forms a first limit step, the mounting seat forms a second limit step on the inner wall of the movable channel, the first limit step is relative to the second limit step, and the first limit step and the second limit step are both located on the side of the detection member facing the first connecting port, the reset member is sleeved on the sensing component and is telescopically arranged between the first limit step and the second limit step, when the sensing component moves along the axial direction of the movable channel toward the end away from the mounting seat forming the first connecting port, the reset member undergoes elastic deformation and has a tendency to drive the sensing component to reset.

[0009] According to one embodiment of the utility model, the movable body also forms a first stop step, and the mounting seat forms a second stop step on the inner wall of the movable channel, the first stop step and the second stop step remain relative to each other, and when the workpiece is evacuated, the sensing component is reset under the elastic restoring force of the reset member, and the first stop step and the second stop step abut against each other.

[0010] According to an embodiment of the utility model, the installation channel formed by the installation seat is kept in communication with the movement channel.

[0011] According to an embodiment of the utility model, the mounting seat further forms a second connecting port, which is opposite to the first connecting port, and the extending end can drive the sensing component to extend from the movable channel through the second connecting port and retract into the movable channel through the second connecting port.

[0012] According to one embodiment of the utility model, the mounting seat includes a fixed portion and at least one movable sleeve, the movable sleeve is detachably inserted into the fixed portion, and the fixed portion and the movable sleeve together form the movable channel, the sensing component passes through the fixed portion and the movable sleeve, the sensing component is loosely matched with the movable sleeve, and the sensing component can move within the movable sleeve.

[0013] According to an embodiment of the present utility model, the fixing portion forms the second limiting step and the second stopping step.

[0014] According to an embodiment of the utility model, one movable sleeve is provided, the movable sleeve forms the second limiting step or the second stopping step, and the movable sleeve is detachably mounted on the fixing portion through the first connecting port or the second connecting port.

[0015] According to one embodiment of the utility model, the fixing portion forms at least one mounting threaded hole, the axis of the mounting threaded hole intersects with the axis of the movable channel, and when the movable sleeve is installed on the fixing portion, the fixing bolt is screwed into the mounting threaded hole and abuts against the outer wall of the movable sleeve.

[0016] According to an embodiment of the present invention, the detection member is detachably mounted on the mounting channel.

[0017] According to an embodiment of the utility model, the sensing part forms two notches, the two notches are spaced apart and separate the sensing part into a first sensing portion and a second sensing portion, the second sensing portion is close to the abutting end portion, the first sensing portion is far away from the abutting end portion, and with the direction extending from the extending end portion toward the abutting end portion as a reference, the cross-sectional diameter of the abutting end portion along the axial direction perpendicular to the sensing component gradually decreases. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The schematic diagram of the structure of the indirect detection device of the utility model is shown.

[0019] Figure 2 An exploded view of the indirect detection device of the utility model is shown.

[0020] Figure 3 A cross-sectional view of the mounting seat of the utility model is shown.

[0021] Figure 4 A cross-sectional view of an embodiment of the indirect detection device of the utility model is shown.

[0022] Figure 5 A cross-sectional view of another embodiment of the indirect detection device of the utility model is shown.

[0023] Figure 6 Shows Figure 5 Enlarged view of part A. DETAILED DESCRIPTION

[0024] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0025] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0026] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0027] refer to Figures 1 to 6 The indirect detection device according to a preferred embodiment of the utility model will be described in detail below. The indirect detection device can detect whether the workpiece is missed or / and misplaced. The workpiece is divided into a closed workpiece and annular workpiece according to different types. The closed workpiece can be implemented but not limited to bolts, and the annular workpiece can be implemented but not limited to nuts.

[0028] Specifically, the indirect detection device includes a mounting seat 10 , a detection member 20 , a sensing member 30 and a reset member 40 .

[0029] The mounting seat 10 forms a moving channel 101, a mounting channel 102 and a first communication port 103 communicating with the moving channel 101. The sensing component 30 is slidably mounted on the moving channel 101 along the axial direction of the moving channel 101.

[0030] The sensing component 30 includes a moving body 31 and a to-be-sensed member 32. The moving body 31 has an abutting end 311 and an extending end 312, and the abutting end 311 is configured to extend from the moving channel 101 to the first communicating port 103 and retract into the moving channel 101 via the first communicating port 103. In an initial state, the abutting end 311 remains extended from the first communicating port 103 to provide a pressing portion for the workpiece.

[0031] The detection member 20 is plugged into the installation channel 102, and the axis of the moving channel 101 intersects with the axis of the installation channel 102. The to-be-sensed member 32 is installed at the extended end 312. When the sensing member 30 moves along the axial direction of the moving channel 101 toward the end away from the mounting seat 10 forming the first communication port 103, the moving path of the to-be-sensed member 32 intersects with the sensing range of the detection member 20. When the sensing member 30 is in the initial state, the to-be-sensed member 32 moves away from the sensing range of the detection member 20.

[0032] The movable body 31 forms a first limiting step 313, and the mounting seat 10 forms a second limiting step 11 on the inner wall of the movable channel 101. The first limiting step 313 is kept opposite to the second limiting step 11, and the first limiting step 313 and the second limiting step 11 are both located on the side of the detection member 20 facing the first connecting port 103. The reset member 40 is sleeved on the sensing component 30 and is telescopically arranged between the first limiting step 313 and the second limiting step 11. When the sensing component 30 moves along the axial direction of the movable channel 101 toward the end away from the mounting seat 10 forming the first connecting port 103, the reset member 40 undergoes elastic deformation and has a tendency to drive the sensing component 30 to reset.

[0033] When the closed workpiece is placed in a designated position and then approaches the sensing component 30 to squeeze the abutment end 311 so that the sensing component 30 moves along the axial direction of the moving channel 101 toward one end away from the mounting seat 10 to form the first connecting port 103, the sensing component 32 to be sensed enters the sensing range of the detection component 20, and the result measured by the detection component 20 is normal. After the closed workpiece is evacuated, the sensing component 30 is reset under the elastic restoring force of the reset component 40 to facilitate subsequent detection. When the closed workpiece is not placed in the designated position, the abutment end 311 remains stationary because it is not squeezed, and the result measured by the detection component 20 is abnormal. In this way, it is possible to detect whether a closed workpiece is missing.

[0034] It is worth mentioning that when the sensing component 30 is in the initial position, there is no influencing object within the sensing range of the detection member 20, and when the sensing component 30 is squeezed and moved, only the sensing member 32 moves into the sensing range of the detection member 20. Compared with the prior art, the detection result of the indirect detection device is more accurate.

[0035] In one example, the detection element 20 is implemented as a proximity sensor. The reset element 40 is implemented as a spring.

[0036] Preferably, the movable body 31 further forms a first stop step 314. The mounting seat 10 forms a second stop step 12 on the inner wall of the movable channel 101. The first stop step 314 and the second stop step 12 remain opposite to each other. When the workpiece is evacuated, the induction component 30 is reset under the elastic restoring force of the reset member 40, and the first stop step 314 and the second stop step 12 abut against each other to prevent the induction component 30 from being separated from the movable channel 101 due to the excessive elastic restoring force of the reset member 40.

[0037] In one embodiment, the installation channel 102 formed by the installation seat 10 is connected to the movement channel 101 .

[0038] In another embodiment, the mounting base 10 further forms a second communication opening 104. The second communication opening 104 is opposite to the first communication opening 103, and the extending end 312 can drive the sensing member 32 to extend from the moving channel 101 to the second communication opening 104 and retract into the moving channel 101 through the second communication opening 104.

[0039] Preferably, the mounting base 10 includes a fixed portion 13 and at least one movable sleeve 14. The movable sleeve 14 is detachably plugged into the fixed portion 13, and the fixed portion 13 and the movable sleeve 14 together form the movable channel 101. The sensing component 30 passes through the fixed portion 13 and the movable sleeve 14. The sensing component 30 is clearance-fitted with the movable sleeve 14, and the sensing component 30 can move within the movable sleeve 14. It is understandable that if the movable sleeve 14 is damaged due to friction with the sensing component 30, the staff can replace the movable sleeve 14, thereby reducing the maintenance cost of the indirect detection device.

[0040] In one embodiment, the fixing portion 13 forms the second limiting step 11 and the second stopping step 12. The staff can replace the movable sleeve 14 according to the wear condition of the movable sleeve 14.

[0041] As a deformable configuration, one movable sleeve 14 is provided. The movable sleeve 14 forms the second limit step 11 or the second stop step 12. The movable sleeve 14 is detachably mounted on the fixed portion 13 through the first communication port 103 or the second communication port 104. After the movable sleeve 14 is separated from the fixed portion 13, the sensing component 30 and the reset member 40 can be removed from the fixed portion 13, and then the sensing component 30, the reset member 40 and the movable sleeve 14 can all be replaced.

[0042] Two movable sleeves 14 are provided, and the two movable sleeves 14 respectively form the second limiting step 11 and the second stopping step 12. One of the movable sleeves 14 is detachably mounted on the fixed portion 13 through the first communicating port 103, and the other movable sleeve 14 is detachably mounted on the fixed portion 13 through the second communicating port 104. After any movable sleeve 14 is separated from the fixed portion 13, the sensing component 30 and the reset member 40 can be removed from the fixed portion 13, and then the sensing component 30, the reset member 40 and the movable sleeve 14 can be replaced.

[0043] In a preferred embodiment, the fixing portion 13 forms at least one mounting threaded hole 1301, and the axis of the mounting threaded hole 1301 intersects with the axis of the moving channel 101. When the movable sleeve 14 is mounted on the fixing portion 13, the fixing bolt is screwed into the mounting threaded hole 1301 and abuts against the outer wall of the movable sleeve 14, so that the movable sleeve 14 is fixed to the fixing portion 13 by the fixing bolt; when the fixing bolt is screwed out of the mounting threaded hole 1301, the movable sleeve 14 can be separated from the fixing portion 13.

[0044] As a preferred embodiment, the detection member 20 is detachably mounted on the mounting channel 102, so that different types of detection members 20 can be used in the indirect detection device.

[0045] As a deformable method, the sensing member 32 forms two notches 3201. The two notches 3201 are arranged at intervals and separate the sensing member 32 into a first sensing portion 321 and a second sensing portion 322. The second sensing portion 322 is close to the abutting end portion 311, and the first sensing portion 321 is far away from the abutting end portion 311. With the direction extending from the extending end portion 312 to the abutting end portion 311 as a reference, the cross-sectional diameter of the abutting end portion 311 along the axial direction perpendicular to the sensing component 30 gradually decreases.

[0046] It can be understood that during detection, the distances of the closed workpiece and the annular workpiece moving along the axial direction of the moving body 31 are the same, but the distances of the closed workpiece and the annular workpiece pushing the sensing component 30 to move along the axial direction of the moving channel 101 are different, wherein the distance pushed by the closed workpiece to move the sensing component 30 is greater than the distance pushed by the annular workpiece to move the sensing component 30. In addition, the distances pushed by annular workpieces with different inner diameters to move the sensing component 30 along the axial direction of the moving channel 101 are also different. The smaller the inner diameter of the annular workpiece, the greater the distance the sensing component 30 is pushed to move.

[0047] In this way, when an annular workpiece with a predetermined inner diameter is placed at a designated position and approaches the sensing component 30, the annular workpiece is sleeved on the abutment end 311 and pushes the sensing component 30 toward the end of the mounting seat 10 away from the first connecting port 103, so that the first sensing portion 321 moves into the sensing range. The result measured by the detection member 20 is normal. When an annular workpiece with an inner diameter smaller than the predetermined size is placed at a designated position and approaches the sensing component 30, the annular workpiece is sleeved on the abutment end 311 and pushes the sensing component 30 toward the end of the mounting seat 10 away from the first connecting port 103, so that the first sensing portion 321 moves out of the sensing range after moving into the sensing range, and the detection member 20 corresponds to the position of the notch 3201 close to the abutment end 311. At this time, the result measured by the detection member 20 is abnormal. When an annular workpiece with an inner diameter larger than a predetermined size is placed at a designated position and approaches the sensing component 30, the annular workpiece is sleeved on the abutting end 311 and pushes the sensing component 30 to move toward an end away from the mounting seat 10 forming the first connecting port 103, so that the first sensing portion 321 does not move into the sensing range, the detection component 20 corresponds to the position of the notch 3201 away from the abutting end 311, and the result measured by the detection component 20 is abnormal. In this way, it can be determined whether an annular workpiece of a designated model is placed in the designated position.

[0048] In addition, when the closed workpiece is placed at a designated position and then approaches the sensing component 30 to press the abutting end 311 so that the sensing component 30 moves along the axial direction of the moving channel 101 toward an end away from the mounting seat 10 to form the first communication port 103, the second sensing portion 322 enters the sensing range of the detection member 20, and the result measured by the detection member 20 is normal. When the workpiece is not placed at the designated position, the sensing component 30 does not move, and the detection result of the detection member 20 is abnormal.

[0049] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. An indirect detection device, characterized in that: The indirect detection device comprises: A mounting seat, wherein the mounting seat forms a moving channel, a mounting channel, and a first communication port communicating with the moving channel, and an axis of the moving channel intersects with an axis of the mounting channel; a sensing component, the sensing component is slidably mounted on the moving channel along the axial direction of the moving channel, the sensing component comprises a moving body and a to-be-sensed member, the moving body has an abutting end and an extending end, and the abutting end is configured to be able to extend from the moving channel to the first communicating port and retract into the moving channel via the first communicating port, in an initial state, the abutting end remains extended from the first communicating port, and the to-be-sensed member is mounted on the extending end; A detection member, the detection member is plugged into the mounting channel, when the sensing member moves along the axial direction of the moving channel toward one end away from the mounting seat forming the first communication port, the moving path of the member to be sensed intersects with the sensing range of the detection member, and when the sensing member is in an initial state, the member to be sensed moves away from the sensing range of the detection member; A reset member, the movable body forms a first limit step, the mounting seat forms a second limit step on the inner wall of the movable channel, the first limit step is relative to the second limit step, and the first limit step and the second limit step are both located on the side of the detection member facing the first connecting port, the reset member is sleeved on the sensing component and is telescopically arranged between the first limit step and the second limit step, when the sensing component moves along the axial direction of the movable channel toward the end away from the mounting seat forming the first connecting port, the reset member undergoes elastic deformation and has a tendency to drive the sensing component to reset.

2. The indirect detection device according to claim 1, characterized in that: The movable body also forms a first stop step, and the mounting seat forms a second stop step on the inner wall of the movable channel. The first stop step and the second stop step remain opposite to each other. When the workpiece is evacuated, the sensing component is reset under the elastic restoring force of the reset member, and the first stop step and the second stop step abut against each other.

3. The indirect detection device according to claim 2, characterized in that: The installation channel formed by the installation seat is connected with the movement channel.

4. The indirect detection device according to claim 2, characterized in that: The mounting seat further forms a second communication port, which is opposite to the first communication port. The extending end can drive the sensing member to extend from the moving channel to the second communication port and retract into the moving channel through the second communication port.

5. The indirect detection device according to claim 4, characterized in that: The mounting seat includes a fixed portion and at least one movable sleeve, the movable sleeve is detachably plugged into the fixed portion, and the fixed portion and the movable sleeve together form the movable channel, the sensing component passes through the fixed portion and the movable sleeve, the sensing component is loosely matched with the movable sleeve, and the sensing component can move within the movable sleeve.

6. The indirect detection device according to claim 5, characterized in that: The fixing portion forms the second limiting step and the second stopping step.

7. The indirect detection device according to claim 5, characterized in that: One movable sleeve is provided, the movable sleeve forms the second limiting step or the second stopping step, and the movable sleeve is detachably mounted on the fixing portion through the first communicating port or the second communicating port.

8. The indirect detection device according to claim 6 or 7, characterized in that: The fixing portion forms at least one mounting threaded hole, the axis of the mounting threaded hole intersects with the axis of the movable channel, and when the movable sleeve is installed on the fixing portion, the fixing bolt is screwed into the mounting threaded hole and abuts against the outer wall of the movable sleeve.

9. The indirect detection device according to claim 8, characterized in that: The detection member is detachably mounted on the mounting channel.

10. The indirect detection device according to claim 9, characterized in that: The sensing component forms two notches, which are spaced apart and separate the sensing component into a first sensing portion and a second sensing portion, wherein the second sensing portion is close to the abutting end portion, and the first sensing portion is away from the abutting end portion. With the direction extending from the extending end portion toward the abutting end portion as a reference, the cross-sectional diameter of the abutting end portion along the axial direction perpendicular to the sensing component gradually decreases.

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