Sensor shell machining tool

Abstract

The utility model provides a sensor shell machining tool, a sensor shell comprises a large-diameter shell and a small-diameter shell which are fixedly connected, and a first through hole is formed in the middle of the small-diameter shell; the sensor shell machining tool comprises a mandrel, the mandrel comprises a large-diameter part and a medium-diameter part which are fixedly connected, and the shapes of the large-diameter part and the medium-diameter part are matched with the shapes of an inner cavity of a large-diameter shell and an inner cavity of a small-diameter shell respectively; a first air hole is formed in the end face, close to the medium-diameter part, of the large-diameter part, a second air hole is formed in the end face, away from the large-diameter part, of the medium-diameter part, and the first air hole and the second air hole both extend to the outer side of the end face, away from one end of the medium-diameter part, of the large-diameter part so as to be communicated with the atmosphere. When the scheme is used for positioning the sensor shell, the internal space of the sensor shell is communicated with the atmosphere through the first air hole and the second air hole, so that the situation that the sensor shell is difficult to take down due to the influence of air pressure after being sleeved with the mandrel can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sensor housing processing, in particular to a sensor housing processing tooling. Background Art

[0002] The flow temperature sensor is a component on an aircraft. It has a tubular or sleeve-shaped housing, and the housing has characteristics such as being soft, thin, and easily deformable. The commonly used processing method is to sleeve the housing on a mandrel for milling. However, after the housing is sleeved on the mandrel, affected by air pressure, the housing and the mandrel will stick together, and it is very difficult to remove the housing from the mandrel after processing.

[0003] Therefore, how to solve the above problems has become a technical problem in this field. Summary of the Utility Model

[0004] Based on the problems existing in the above prior art, the utility model aims to solve the technical problem that when the sensor housing is sleeved on the surface of the mandrel and then milled in the prior art, affected by air pressure, it is difficult to remove the housing from the mandrel.

[0005] The utility model provides a sensor housing processing tooling. The sensor housing includes a large-diameter housing and a small-diameter housing fixedly connected. A first through hole is opened in the middle of the end face of the small-diameter housing. The sensor housing processing tooling includes a mandrel, which includes a large-diameter part and a middle-diameter part fixedly connected. The shapes of the large-diameter part and the middle-diameter part respectively match the shapes of the inner cavities of the large-diameter housing and the small-diameter housing.

[0006] A first air vent hole is opened on the end face of the large-diameter part close to the middle-diameter part, and a second air vent hole is opened on the end face of the middle-diameter part far from the large-diameter part. Both the first air vent hole and the second air vent hole extend to the outside of the end face of the large-diameter part far from the middle-diameter part to communicate with the atmosphere.

[0007] According to an embodiment of the invention, the mandrel further includes a small-diameter part fixedly connected to the end of the middle-diameter part far from the large-diameter part, and the end of the small-diameter part far from the middle-diameter part passes through the first through hole of the small-diameter housing movably.

[0008] According to an embodiment of the invention, a first thread is provided on the outer surface of the small-diameter part. The sensor housing processing tooling further includes a first tooling group, and the first tooling group includes a nut that mates with the first thread.

[0009] According to an embodiment of the invention, the first tooling group further includes a first protective washer.

[0010] According to an embodiment of the invention, a center hole is opened at the center of the end face of the end of the small-diameter part far from the middle-diameter part.

[0011] According to an embodiment of the present invention, the mandrel further includes a reinforcing portion fixedly connected to one end of the large-diameter portion away from the middle-diameter portion; the sensor housing processing tooling further includes a second tooling group, the second tooling group includes a pressing cylinder sleeve, a second through hole is formed in the end face of the pressing cylinder sleeve, and the shape of the second through hole matches the shape of the small-diameter housing; a detachable connection structure is provided between the open end of the pressing cylinder sleeve and the reinforcing portion.

[0012] According to an embodiment of the present invention, a second thread is formed on the outer surface of the reinforcing portion, and the pressing cylinder sleeve is a threaded cylinder sleeve.

[0013] According to an embodiment of the present invention, the second tooling group further includes a second protective washer.

[0014] According to an embodiment of the present invention, a plurality of clamping grooves are formed on the outer surface of the reinforcing portion away from the large-diameter portion.

[0015] According to an embodiment of the present invention, the number of the clamping grooves is 3, and the 3 clamping grooves are evenly distributed along the circumferential direction of the reinforcing portion.

[0016] The beneficial effects of the present utility model are as follows:

[0017] A sensor housing processing tooling provided by the present utility model, by respectively forming a first air vent hole and a second air vent hole on the end face of the large-diameter portion and the end face of the middle-diameter portion, and both the first air vent hole and the second air vent hole extend to the outside of the end face of the large-diameter portion away from the middle-diameter portion to communicate with the atmosphere, so that after the sensor housing is sleeved on the surface of the mandrel, the internal space of the sensor housing communicates with the atmosphere through the first air vent hole and the second air vent hole, and the situation that it is difficult to remove the sensor housing due to the influence of air pressure after being sleeved on the mandrel can be avoided. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is a schematic structural diagram of a sensor housing in an embodiment of the present utility model;

[0020] Figure 2 is a schematic structural diagram of a mandrel in an embodiment of the present utility model;

[0021] Figure 3 isFigure 2 Schematic structural diagram after adding a sensor housing and a first tooling set;

[0022] Figure 4 It is a schematic diagram of the working state of a sensor housing processing tooling provided by an embodiment of the present invention;

[0023] Reference numerals: 100 - sensor housing; 101 - large-diameter housing; 102 - small-diameter housing; 1 - mandrel; 11 - large-diameter part; 110 - first ventilation hole; 12 - middle-diameter part; 120 - second ventilation hole; 13 - small-diameter part; 130 - center hole; 14 - strengthening part; 140 - clamping groove; 2 - first tooling set; 21 - nut; 22 - first protective washer; 3 - second tooling set; 31 - pressing barrel sleeve. Detailed implementation manners

[0024] The descriptions of the following embodiments refer to the attached drawings, which are used to illustrate specific embodiments in which the present invention can be implemented.

[0025] The present invention provides a sensor housing processing tooling. The structure of the sensor housing 100 is as Figure 1 shown. It includes a large-diameter housing 101 and a small-diameter housing 102 that are fixedly connected. A first through hole is opened in the middle of the end face of the small-diameter housing 102. The sensor housing processing tooling includes a mandrel 1. As Figure 2 shown in the schematic structural diagram of the mandrel 1, it includes a large-diameter part 11 and a middle-diameter part 12 that are fixedly connected. The shapes of the large-diameter part 11 and the middle-diameter part 12 respectively match the shapes of the inner cavities of the large-diameter housing 101 and the small-diameter housing 102;

[0026] A first ventilation hole 110 is opened on the end face of the large-diameter part 11 close to the middle-diameter part 12, and a second ventilation hole 120 is opened on the end face of the middle-diameter part 12 far from the large-diameter part 11. Both the first ventilation hole 110 and the second ventilation hole 120 extend to the outside of the end face of the large-diameter part 11 far from the middle-diameter part 12 to communicate with the atmosphere.

[0027] Compared with the prior art, by respectively opening a first ventilation hole 110 and a second ventilation hole 120 on the end face of the large-diameter part 11 and the end face of the middle-diameter part 12, and both the first ventilation hole 110 and the second ventilation hole 120 extend to the outside of the end face of the large-diameter part 11 far from the middle-diameter part 12 to communicate with the atmosphere, after the sensor housing 100 is sleeved on the surface of the mandrel 100, the internal space of the sensor housing 100 communicates with the atmosphere through the first ventilation hole 110 and the second ventilation hole 120, which can avoid the situation that it is difficult to remove the sensor housing 100 due to the influence of air pressure after being sleeved with the mandrel 1.

[0028] It should be noted that when only considering the problem of the sensor housing 100 being difficult to remove from the mandrel 1 due to the influence of air pressure, a vent groove can also be axially opened on the surface of the mandrel 1. Obviously, when a vent groove is opened on the surface of the mandrel 1, the part of the sensor housing 100 sleeved there will lack support. When milling this part of the sensor 100, this part will form a depression under external force. Of course, the width of the vent groove can be reduced to reduce the area of the depression formed by the sensor housing 100, but it will still inevitably affect the aesthetics and milling accuracy of the sensor housing 100. Especially for high-precision sensors, a slight depression will affect the assembly accuracy of the sensor, thus affecting the accuracy of the sensor.

[0029] In this application, by respectively opening a first vent hole 110 and a second vent hole 120 on the end faces of the large-diameter part 11 and the middle-diameter part 12, and both the first vent hole 110 and the second vent hole 120 extend from the inside to the outside of the end face of the large-diameter part 11 far from the middle-diameter part 12, the above situation can be basically avoided, effectively ensuring the milling accuracy of the sensor.

[0030] Specifically, the mandrel 1 further includes a small-diameter part 13 fixedly connected to the end of the middle-diameter part 12 far from the large-diameter part 11, and the end of the small-diameter part 13 far from the middle-diameter part 12 movably passes through the first through hole of the small-diameter housing 102.

[0031] According to an embodiment of the present invention, the outer surface of the small-diameter part 13 is provided with a first thread; the sensor housing processing tooling further includes a first tooling group 2, as Figure 3 shown in Figure 2 the structural schematic diagram after adding the sensor housing 100 and the first tooling group 2. The first tooling group 2 includes a nut 21 that mates with the first thread.

[0032] It can be understood that the nut 21 can cooperate with the first thread on the surface of the small-diameter part 13, so as to press and fit the sensor housing 100 against the surface of the mandrel 1 from the end of the small-diameter part 13 far from the middle-diameter part 12. At this time, the part of the surface of the sensor housing 100 except the end face of the small-diameter housing 102 can be milled to avoid the situation that the sensor housing 100 generates depressions and poor milling due to incomplete fitting with the surface of the mandrel 1, which is beneficial to improving the milling yield and accuracy.

[0033] Furthermore, in order to avoid damage to the end of the sensor housing 100 due to the pressure of the nut 21, the first tooling group 2 further includes a first protective washer 22. Specifically, the first protective washer 22 can be a rubber washer.

[0034] According to an embodiment of the present invention, a center hole 130 is provided at the center of the end face of the small-diameter portion 13 away from the middle-diameter portion 12, which is convenient for the tailstock center support during processing.

[0035] When the nut 21 presses and fits the sensor housing 100 against the surface of the mandrel 1 from the end of the sensor housing 100, it will cause the end face of the sensor housing 100 to be unable to be milled. To solve this problem, the mandrel 1 further includes a reinforcing portion 14 fixedly connected to the end of the large-diameter portion 11 away from the middle-diameter portion 12; the sensor housing processing tooling further includes a second tooling group 3, as Figure 4 shown as Figure 3 the structural schematic diagram after adding the second tooling group 3 (or the working state schematic diagram of the sensor processing tooling). The second tooling group 3 includes a pressing sleeve 31. A second through hole 310 is provided on the end face of the pressing sleeve 31, and the shape of the second through hole 310 matches the shape of the small-diameter housing 102; a detachable connection structure is provided between the open end of the pressing sleeve 31 and the reinforcing portion 14. Specifically, a second thread is provided on the outer surface of the reinforcing portion 14, and the pressing sleeve 31 is a threaded sleeve.

[0036] It can be understood that after the open end of the pressing sleeve 31 is connected to the reinforcing portion 14 through the detachable connection structure, the sensor housing 100 can be pressed and fitted against the surface of the mandrel 1 from the end face of the large-diameter housing 101 close to the small-diameter housing 102. At this time, the first tooling group 2 can be removed, and the end face of the small-diameter housing 102 away from the large-diameter housing 101 can be milled.

[0037] During actual milling processing, when the second tooling group 3 and the first tooling group 2 are alternately used, the end face of the small-diameter housing 102 and the places on the sensor housing 100 other than the end face of the small-diameter housing 102 can be milled respectively to complete the milling work on the entire outer surface of the sensor housing 100.

[0038] Further, in order to prevent the end of the large-diameter housing 101 close to the small-diameter housing 102 from being damaged by the pressure of the pressing sleeve 31, the second tooling group 3 further includes a second protective washer. Specifically, the second protective washer can be a rubber washer.

[0039] According to an embodiment of the present invention, a plurality of clamping grooves 140 are provided on the outer surface of the reinforcing portion 14 away from the large-diameter portion 11. As a specific embodiment, the number of the clamping grooves 140 is 3, and the 3 clamping grooves 140 are evenly distributed along the circumferential direction of the reinforcing portion 14 to cooperate with an external three-jaw chuck to clamp the mandrel 1.

[0040] In order to facilitate the understanding of the present invention, the following Figures 1-4 The working principle of this solution is described in detail:

[0041] Step 1, fix the reinforcement portion 14 of the mandrel 1 on the milling equipment through a triangular chuck provided by the milling equipment;

[0042] Step 2: Sleeve the sensor housing 100 from one end of the small diameter portion 13 onto the surface of the mandrel 1, and use the nut 21 in the first tooling set 2 to press and fit the sensor housing 100 onto the surface of the mandrel;

[0043] Step 3, using the tailstock top to tighten the end of the small diameter portion 13;

[0044] Step 4, start the milling equipment to mill the sensor housing 100 except the end surface of the small diameter housing 102;

[0045] Step 5: After the milling of the sensor housing 100 except the end surface of the small-diameter housing 102 is completed, the milling equipment is stopped; the first tooling group 2 is removed, and the compression sleeve 31 of the second tooling group 3 is sleeved on the outer surface of the small-diameter housing 102, and the open end of the compression sleeve 31 is threadedly matched with the reinforcing portion 14, so that the sensor housing 100 is compressed and fits against the surface of the mandrel;

[0046] Step 6, restarting the milling device to mill the end surface of the small diameter housing 102 away from the large diameter housing 101;

[0047] Step 7: After the end of the small-diameter housing 102 is milled, the milling equipment is turned off, and the second tooling group 3, the sensor housing 100 and the core shaft 1 are removed in sequence.

[0048] It should be noted that the order in which the first tooling group 2 and the second tooling group 3 actually participate in the work is not limited. During actual milling processing, the use order of the first tooling group 2 and the second tooling group 3 can be adjusted according to actual needs to better match the processing rhythm.

[0049] In summary, in a machining tooling for a sensor housing provided by the present utility model, by alternately using the second tooling group 3 and the first tooling group 2, the end face of the small-diameter housing 102 and the places on the sensor housing 100 other than the end face of the small-diameter housing 102 can be milled respectively to complete the milling work on the entire outer surface of the sensor housing 100; moreover, by respectively providing a first air vent hole 110 and a second air vent hole 120 on the end face of the large-diameter portion 11 and the end face of the middle-diameter portion 12, and both the first air vent hole 110 and the second air vent hole 120 extend from the inside to the outside of the end face of the large-diameter portion 11 away from the middle-diameter portion 12 to communicate with the atmosphere, it can avoid the situation that it is difficult to remove the sensor housing 100 after being sleeved with the mandrel 1 due to the influence of air pressure.

[0050] It should be noted that although the present utility model is disclosed as above with specific embodiments, the above embodiments are not intended to limit the present utility model. Those of ordinary skill in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the scope defined by the claims.

Claims

1. A processing tooling for a sensor housing, the sensor housing (100) comprising a large-diameter housing (101) and a small-diameter housing (102) fixedly connected, and a first through hole being formed in the middle of the end face of the small-diameter housing (102); characterized in that, The processing tooling for the sensor housing includes a mandrel (1), and the mandrel (1) includes a large-diameter portion (11) and a medium-diameter portion (12) that are fixedly connected. The shapes of the large-diameter portion (11) and the medium-diameter portion (12) respectively match the shapes of the inner cavities of the large-diameter housing (101) and the small-diameter housing (102). A first ventilation hole (110) is formed in the end face of the large-diameter portion (11) close to the medium-diameter portion (12), and a second ventilation hole (120) is formed in the end face of the medium-diameter portion (12) away from the large-diameter portion (11). Both the first ventilation hole (110) and the second ventilation hole (120) extend to the outside of the end face of the large-diameter portion (11) away from the medium-diameter portion (12) to communicate with the atmosphere.

2. The machining tooling for a sensor housing according to claim 1, characterized in that, The mandrel (1) further includes a small-diameter portion (13) fixedly connected to one end of the medium-diameter portion (12) away from the large-diameter portion (11), and one end of the small-diameter portion (13) away from the medium-diameter portion (12) movably passes through the first through hole of the small-diameter housing (102).

3. A processing tooling for a sensor housing according to claim 2, wherein, A first thread is formed on the outer surface of the small-diameter portion (13); a first tooling set (2) is further included, and the first tooling set (2) includes a nut (21) that mates with the first thread.

4. A fixture for machining a sensor housing according to claim 3, wherein, The first tooling set (2) further includes a first protective washer (22).

5. A processing tooling for a sensor housing according to claim 2, wherein, A center hole (130) is formed in the center of the end face of the small-diameter portion (13) away from the medium-diameter portion (12).

6. The processing tooling for a sensor housing according to claim 1, characterized in that, The mandrel (1) further includes a reinforcing portion (14) fixedly connected to one end of the large-diameter portion (11) away from the medium-diameter portion (12); the processing tooling for the sensor housing further includes a second tooling set (3), and the second tooling set (3) includes a pressing cylinder sleeve (31). A second through hole (310) is formed in the end face of the pressing cylinder sleeve (31), and the shape of the second through hole (310) matches the shape of the small-diameter housing (102); a detachable connection structure is provided between the open end of the pressing cylinder sleeve (31) and the reinforcing portion (14).

7. A processing tool for a sensor housing according to claim 6, characterized in that, A second thread is formed on the outer surface of the reinforcing portion (14), and the pressing cylinder sleeve (31) is a threaded cylinder sleeve.

8. A processing tooling for a sensor housing according to claim 6, characterized in that, The second tooling set (3) further includes a second protective washer.

9. A processing tooling for a sensor housing according to claim 6, characterized in that, A plurality of clamping grooves (140) are formed on the outer surface of the reinforcing portion (14) away from the large-diameter portion (11).

10. A sensor housing processing tooling according to claim 9, characterized in that, The number of the clamping grooves (140) is 3, and the 3 clamping grooves (140) are evenly distributed along the circumferential direction of the reinforcing portion (14).

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