Clamp for automatically detecting presence of axle housing

Abstract

The application provides a clamp for automatically detecting whether a bridge shell is present, comprising a first supporting device arranged on a first fixed base plate and two second supporting devices arranged on the first fixed base plate and symmetrically arranged on the two sides of the first supporting device; the second supporting device comprises a second fixed base plate, a first adjusting assembly, a second supporting plate and a pressing mechanism; the first adjusting assembly is used for adjusting the length of the second supporting device; the pressing mechanism comprises a supporting seat fixedly arranged on the second supporting plate and a bridge shell in place detection assembly arranged in the supporting seat. The bridge shell in place detection assembly can detect whether a bridge shell is arranged on the pressing mechanism, so that the machining tool can perceive whether a bridge shell is arranged on the clamp, to avoid the case that the bridge shell is not fixed on the clamp, but each machining tool has started working according to the set program, to avoid causing danger such as machine collision, to avoid causing damage to the tool or hurting the operator.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clamps, in particular to a clamp capable of automatically detecting whether an axle housing is present. BACKGROUND

[0002] An axle housing is a base body for assembling a main reducer, a differential, a half shaft and a wheel, and mainly functions to support and protect the main reducer, the differential and the half shaft.

[0003] In the processing of an axle housing, the axle housing needs to be placed on an automatic production line for processing installation surfaces, positioning surfaces or processing holes. In the process of processing the axle housing, a clamp is usually used to fix and position the axle housing so as to ensure processing precision and processing quality. After the axle housing is fixed, each processing machine starts processing the axle housing according to a preset program.

[0004] The known axle housing clamp can automatically clamp or release the axle housing and can quickly change the type, that is, one clamp can adapt to several axle housings of different sizes to improve debugging efficiency. However, since the current clamp does not have the function of detecting whether the axle housing is clamped in place, there is still a situation in the current axle housing production process that the axle housing is not clamped on the machine tool due to operation errors, but each processing machine has started working according to the set program. At this time, it may cause danger such as machine collision, causing damage to the machine tool or injury to the operator. SUMMARY

[0005] To solve the above technical problems, the present application provides a clamp capable of automatically detecting whether an axle housing is present, which comprises a first supporting device arranged on a first fixed bottom plate and two second supporting devices arranged on the first fixed bottom plate, the two second supporting devices being symmetrically arranged on both sides of the first supporting device.

[0006] The first supporting device comprises a first supporting plate fixedly arranged on the first fixed bottom plate and a first supporting mechanism arranged on the first supporting plate.

[0007] The second supporting device comprises a second fixed bottom plate fixedly arranged on the first fixed bottom plate, a first adjusting assembly arranged on the second fixed bottom plate, a second supporting plate arranged on the first adjusting assembly and a pressing mechanism arranged on the upper part of the second supporting plate, the first adjusting assembly being used to adjust the length of the second supporting device.

[0008] The pressing mechanism comprises a supporting seat fixedly arranged on the second supporting plate and an axle housing in-place detection assembly arranged in the supporting seat, the axle housing in-place detection assembly being used to detect whether an axle housing is arranged on the pressing mechanism.

[0009] In some embodiments of the present application, the bridge shell in-place detection assembly comprises a detection seat fixedly arranged on the support base, a jacking component, and an elastic component;

[0010] The detection seat is provided with a first through hole in the height direction of the detection seat and a second through hole in the length direction of the detection seat, and the first through hole and the second through hole are in communication with each other.

[0011] The elastic component is arranged in the first through hole, the jacking component is also arranged in the first through hole, the jacking component is located above the elastic component, the top end of the jacking component extends out of the first through hole, and the elastic component can drive the jacking component to rise and fall in the first through hole.

[0012] In some embodiments of the present application, the bridge shell in-place detection assembly further comprises airtight components arranged in the second through hole, and when no bridge shell is arranged on the pressing mechanism, the two airtight components, the first through hole, and the second through hole form a through air circuit.

[0013] In some embodiments of the present application, the jacking component is provided with a first light hole in the height direction of the jacking component and a first groove in the circumferential direction of the jacking component, the first groove is provided with a second light hole, the first light hole and the second light hole are in communication with each other, and when no bridge shell is arranged on the pressing mechanism, the first through hole, the second through hole, the first light hole, and the second light hole form a through air circuit.

[0014] In some embodiments of the present application, the jacking component is further provided with a third light hole, the first light hole, the second light hole, and the third light hole are in communication with each other, and when no bridge shell is arranged on the pressing mechanism, the first through hole, the second through hole, the first light hole, the second light hole, and the third light hole form a through air circuit.

[0015] In some embodiments of the present application, the pressing mechanism further comprises two pressing assemblies symmetrically arranged on the support base, the pressing assembly comprises a pressing driving part fixedly arranged on the support base, a pressing part, and a connecting rod; one end of the pressing part is rotationally connected with the extending end of the pressing driving part; one end of the connecting rod is rotationally connected with the support base, and the other end of the connecting rod is rotationally connected with the middle part of the pressing part; when the extending end of the pressing driving part extends, the free end of the pressing part can be driven to descend and press the bridge shell.

[0016] In some embodiments of the present application, the first supporting mechanism comprises two first auxiliary supporting assemblies, two second auxiliary supporting assemblies, two third auxiliary supporting assemblies and two side pushing assemblies; the two first auxiliary supporting assemblies are symmetrically arranged along the length direction of the first fixed bottom plate; the two second auxiliary supporting assemblies are symmetrically arranged along the width direction of the first fixed bottom plate; the two third auxiliary supporting assemblies are symmetrically arranged between the first auxiliary supporting assemblies and the second auxiliary supporting assemblies with the two second auxiliary supporting assemblies as the symmetric axes; the two side pushing assemblies are symmetrically arranged between the first auxiliary supporting assemblies and the second auxiliary supporting assemblies with the two second auxiliary supporting assemblies as the symmetric axes, and the two side pushing assemblies are oppositely arranged with the two third auxiliary supporting assemblies.

[0017] In some embodiments of the present application, the cleaning mechanism is further arranged on the first supporting plate, and the cleaning mechanism is used for flushing the waste generated in the machining process.

[0018] In some embodiments of the present application, the second supporting device further comprises two concertina guards, and the two concertina guards are arranged on the two sides of the second supporting plate respectively; the concertina guards can be telescoped in the length direction of the second supporting device.

[0019] In some embodiments of the present application, the first supporting device further comprises a second adjusting assembly, the second adjusting assembly comprises an adjusting seat, an adjusting block, a first adjusting part and a second adjusting part, the adjusting block is fixedly arranged on the first supporting plate, the adjusting seat is arranged on the first supporting plate, the first adjusting part and the second adjusting part pass through the adjusting block respectively, the protruding end of the first adjusting part abuts against the side wall of the adjusting seat, and the protruding end of the second adjusting part is threadedly connected with the adjusting seat; the protruding lengths of the first adjusting part and the second adjusting part are adjusted to adjust the position of the adjusting seat on the first supporting plate.

[0020] Compared with the prior art, the present application has the following advantages and beneficial effects: the automatic detection bridge shell clamp of the present application is provided with a bridge shell in-place detection assembly, which can detect whether the bridge shell is arranged on the pressing mechanism; thus, the machining tool can perceive whether the bridge shell is arranged on the clamp, so as to avoid the situation that the bridge shell is not fixed on the clamp, but each machining tool has started working according to the set program, to avoid causing danger such as machine collision, and to avoid causing damage to the tool or injury to the operator. Meanwhile, the clamp is provided with a first supporting device, which can adapt to bridge shells of different sizes, can be compatible with bridge shells of different sizes, and can realize rapid adjustment during type changing.

[0021] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of this document. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which are a part of this document, are used to provide further understanding of this document, illustrate exemplary embodiments of this document, and together with the description of this document serve the purpose of explaining this document. In the drawings:

[0023] Figure 1 is a structural schematic view of a fixture for automatically detecting the presence or absence of a bridge housing according to an exemplary embodiment of the present application;

[0024] Figure 2 is a top view of a fixture for automatically detecting the presence or absence of a bridge housing according to an exemplary embodiment of the present application;

[0025] Figure 3 is a front view of a fixture for automatically detecting the presence or absence of a bridge housing according to an exemplary embodiment of the present application;

[0026] Figure 4 is a structural schematic view of a first support device according to an exemplary embodiment of the present application;

[0027] Figure 5 is a structural schematic view of a second support device according to an exemplary embodiment of the present application;

[0028] Figure 6 is a sectional view of a second support device according to an exemplary embodiment of the present application;

[0029] Figure 7 is a structural schematic view of a pressing mechanism according to an exemplary embodiment of the present application;

[0030] Figure 8 is a front view of a pressing mechanism according to an exemplary embodiment of the present application;

[0031] Figure 9 is a structural schematic view of a bridge housing in-place detection assembly according to an exemplary embodiment of the present application;

[0032] Figure 10 is a sectional view of a bridge housing in-place detection assembly according to a first exemplary embodiment of the present application;

[0033] Figure 11 is a sectional view of a bridge housing in-place detection assembly according to a second exemplary embodiment of the present application;

[0034] Figure 12 is a sectional view of a bridge housing in-place detection assembly according to a third exemplary embodiment of the present application;

[0035] Figure 13is a structural schematic view of the pressing mechanism provided by another exemplary embodiment of the present application.

[0036] In the figure:

[0037] 1, first fixed bottom plate;

[0038] 2, first support device; 21, first support plate;

[0039] 22, first support mechanism; 221, first auxiliary support assembly; 222, second auxiliary support assembly; 223, third auxiliary support assembly; 224, side pushing assembly;

[0040] 23, second adjusting assembly; 231, adjusting seat; 232, adjusting stopper; 233, first adjusting part; 234, second adjusting part;

[0041] 3, second support device; 31, second fixed bottom plate;

[0042] 32, first adjusting assembly; 321, hand wheel; 322, rotating shaft; 323, sliding rail; 324, sliding block; 325, connecting part;

[0043] 33, second support plate;

[0044] 34, pressing mechanism; 341, support seat;

[0045] 342, bridge shell in-place detection assembly; 3421, detection support; 3422, jacking part; 3423, elastic part; 3424, first through hole; 3425, second through hole; 3426, airtight part; 3427, first light hole; 3428, second light hole; 3429, third light hole;

[0046] 343, pressing assembly; 3431, pressing driving part; 3432, pressing part; 3433, connecting rod; 3434, first air hole; 3435, second air hole;

[0047] 35, organ type protective cover; 36, cleaning assembly;

[0048] 4, cleaning mechanism. DETAILED DESCRIPTION

[0049] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other in any manner without conflict.

[0050] In the related art, the bridge housing fixture can basically realize automatic clamping or loosening of the bridge housing, and can realize quick type changing, so that one fixture can adapt to several bridge housings of different sizes, and the debugging efficiency is reduced. However, since the current fixture does not have the function of detecting whether the bridge housing is installed in place, in the current bridge housing production process, there is a situation that the bridge housing is not fixed on the fixture due to operation error, but the machining tools have started working according to the set program, at this time, it may cause dangerous situations such as machine collision, causing damage to the machine or risk of injury to the operator.

[0051] Based on this, the exemplary embodiments of the present application provide a fixture capable of automatically detecting whether the bridge housing is present, which is provided with a bridge housing in-place detection assembly. The bridge housing in-place detection assembly can detect whether the bridge housing is arranged on the pressing mechanism. In this way, the machining tools can perceive whether the bridge housing is arranged on the fixture, so as to avoid the situation that the bridge housing is not fixed on the fixture due to operation error, but the machining tools have started working according to the set program, avoid dangerous situations such as machine collision, and avoid damage to the machine or risk of injury to the operator.

[0052] The exemplary embodiments of the present application provide a fixture capable of automatically detecting whether the bridge housing is present, as shown in Figures 1 to 3 The fixture capable of automatically detecting whether the bridge housing is present includes a first support device 2 arranged on a first fixed bottom plate 1 and two second support devices 3 arranged on the first fixed bottom plate 1, and the two second support devices 3 are symmetrically arranged on both sides of the first support device 2. The first support device 2 is used for supporting the middle part of the bridge housing, and the second support device 3 is used for supporting the two ends of the bridge housing.

[0053] As shown in Figure 4 The first support device 2 includes a first support plate 21 fixedly arranged on the first fixed bottom plate 1 and a first support mechanism 22 arranged on the first support plate 21. The first support plate 21 is provided with a mounting and positioning groove and a mounting and positioning hole for mounting and positioning the first support mechanism 22. In order to facilitate cleaning of the waste generated in the machining process, the upper surface of the first support plate 21 is an inclined surface, so as to facilitate the waste generated in the machining process to be cleaned out along the inclined surface.

[0054] The first supporting mechanism 22 comprises two first auxiliary supporting assemblies 221, two second auxiliary supporting assemblies 222, two third auxiliary supporting assemblies 223 and two side pushing assemblies 224; the two first auxiliary supporting assemblies 221, the two second auxiliary supporting assemblies 222, the two third auxiliary supporting assemblies 223 and the two side pushing assemblies 224 form eight-point supporting positioning for the middle part of the axle housing, which can improve the positioning accuracy of the axle housing, and meanwhile, the eight-point supporting positioning can reduce the displacement of the axle housing in the machining process due to machining vibration, thereby improving the machining accuracy and quality.

[0055] The two first auxiliary supporting assemblies 221 are symmetrically arranged along the length direction of the first fixed bottom plate 1, i.e. the length direction of the clamp and the length direction of the axle housing. For example, the first auxiliary supporting assembly 221 can be an oil cylinder assembly or a gas cylinder assembly, which comprises a first auxiliary supporting seat 341 fixedly arranged on the first supporting plate 21 and a first auxiliary driving part fixedly arranged in the first auxiliary supporting seat 341. The first auxiliary driving part is arranged along the height direction of the first fixed plate, i.e. the extension end of the first auxiliary driving part is perpendicular to the surface of the first fixed plate. When the axle housing is arranged on the clamp, the extension ends of the two first auxiliary driving parts abut against the bottom of the middle part of the axle housing for supporting the axle housing.

[0056] The two second auxiliary supporting assemblies 222 are symmetrically arranged along the width direction of the first fixed bottom plate 1, i.e. the width direction of the clamp. For example, the second auxiliary supporting assembly 222 can be an oil cylinder assembly or a gas cylinder assembly, which comprises a second auxiliary supporting seat 341 fixedly arranged on the first supporting plate 21 and a second auxiliary driving part fixedly arranged in the second auxiliary supporting seat 341. The extension direction of the second auxiliary driving part is arranged at an acute angle with the surface of the first fixed plate. Since the bottom of the middle part of the axle housing is similar to a sphere, the second auxiliary driving part arranged at an acute angle with the surface of the first fixed plate can position and support the middle part of the axle housing, and the extension direction of the second auxiliary driving part is perpendicular to the tangent plane of the positioning point and the middle part of the axle housing, thereby achieving good positioning effect.

[0057] The two third auxiliary supporting assemblies 223 are symmetrically arranged between the first auxiliary supporting assembly 221 and the second auxiliary supporting assembly 222 with the two second auxiliary supporting assemblies 222 as the symmetric axes. The two third auxiliary supporting assemblies 223 can be oil cylinder assemblies or gas cylinder assemblies, which comprise a third auxiliary supporting seat 341 fixedly arranged on the first supporting plate 21 and a third auxiliary driving part fixedly arranged in the third auxiliary supporting seat 341. The extension direction of the third auxiliary driving part is parallel to the surface of the first fixed plate, and meanwhile, the extension direction of the third auxiliary driving part is at an acute angle with the extension direction of the two second auxiliary supporting assemblies 222.

[0058] The two side pushing assemblies 224 are symmetrically arranged between the first auxiliary support assembly 221 and the second auxiliary support assembly 222 with the two second auxiliary support assemblies 222 as the axis of symmetry, and the two side pushing assemblies 224 are oppositely arranged with the two third auxiliary support assemblies 223, i.e. the two side pushing assemblies 224 are oppositely arranged with the two third auxiliary support assemblies 223 along the length direction of the clamp.

[0059] The two side pushing assemblies 224 can be oil cylinder assemblies or air cylinder assemblies, and each side pushing assembly 224 comprises a side pushing support seat 341 fixedly arranged on the first support plate 21 and a side pushing driving part fixedly arranged in the side pushing support seat 341. The extending direction of the side pushing driving part is parallel to the surface of the first fixed plate, and meanwhile, the extending direction of the side pushing driving part forms an acute angle with the extending direction of the two second auxiliary support assemblies 222.

[0060] Preferably, the first auxiliary support assembly 221, the second auxiliary support assembly 222 and the third auxiliary support assembly 223 all abut against the axle housing and do not generate a pressing force on the axle housing; the side pushing assembly 224 can generate a pressing force on the axle housing for pressing and positioning the axle housing.

[0061] With reference to Figure 4 , the first support device 2 further comprises a second adjusting assembly 23, which comprises an adjusting seat 231, an adjusting block 232, a first adjusting part 233 and a second adjusting part 234. The adjusting block 232 is fixedly arranged on the first support plate 21, and preferably, along the length direction of the clamp, the adjusting block 232 is arranged at the edge position of the first support plate 21. The adjusting seat 231 is arranged on the first support plate 21, the first adjusting part 233 and the second adjusting part 234 respectively pass through the adjusting block 232, the extending end of the first adjusting part 233 abuts against the side wall of the adjusting seat 231, and the extending end of the second adjusting part 234 is threadedly connected with the adjusting seat 231. Adjusting the extending lengths of the first adjusting part 233 and the second adjusting part 234 can adjust the position of the adjusting seat 231 on the first support plate 21.

[0062] Preferably, the two third auxiliary support assemblies 223 and one second auxiliary support assembly 222 are fixedly arranged on the adjusting seat 231, and adjusting the extending lengths of the first adjusting part 233 and the second adjusting part 234 can adjust the distance between the two third auxiliary support assemblies 223 and the one second auxiliary support assembly 222 and the center of the axle housing, so as to adapt to axle housings of different sizes, reduce the frequency of replacing the clamp, improve the processing efficiency, save the time for debugging due to replacing the clamp, make the clamp compatible with axle housings of multiple sizes, and realize quick changeover in the axle housing processing process.

[0063] In order to facilitate the installation and positioning of the adjusting seat 231, a second recess is formed on the first support plate 21, and the adjusting seat 231 and the adjusting block 232 are arranged in the second recess. When the size of the adjusting seat 231 is adjusted, the arrangement of the adjusting seat 231 in the second recess limits the movement of the adjusting seat 231 in other directions, so that the positioning of the adjusting seat 231 is accurate.

[0064] Similarly, a third adjusting assembly can be arranged on the opposite side of the second adjusting assembly 23 for adjusting the distance between the other second auxiliary support assembly 222 and the two side pushing assemblies 224 and the center of the bridge shell. The third adjusting assembly is similar to the second adjusting assembly 23 in composition and arrangement, and will not be described here.

[0065] As shown in Figure 5 and Figure 6 The second support device 3 includes a second fixed bottom plate 31 fixedly arranged on the first fixed bottom plate 1, a first adjusting assembly 32 arranged on the second fixed bottom plate 31, a second support plate 33 arranged on the first adjusting assembly 32, and a pressing mechanism 34 arranged on the upper part of the second support plate 33.

[0066] The first adjusting assembly 32 is used to adjust the length of the second support device 3, and the first adjusting assembly 32 includes two slide rails 323 fixedly arranged on the second fixed bottom plate 31 and a plurality of slide blocks 324 slidably arranged on the slide rails 323. The second support plate 33 is fixedly arranged on the slide blocks 324, and the second support plate 33 can move along the length direction of the slide rails 323 to adjust the length of the second support device 3.

[0067] In order to facilitate the adjustment of the length of the second support device 3, a convex groove is arranged on the side wall of the second support plate 33, and the first adjusting assembly 32 further includes a connecting part 325 arranged in the convex groove. The connecting part 325 has a shape of being thin in the middle and thick at both ends, one end of the connecting part 325 is accommodated in the convex groove, and the other end of the connecting part 325 is connected with the rotating shaft 322. The other end of the rotating shaft 322 is provided with a hand wheel 321. By pulling the hand wheel 321, the second support plate 33 can slide on the slide rail 323, and the length of the second support device 3 is adjusted.

[0068] In an embodiment, the rotating shaft 322 can be a lead screw, and a lead screw nut is further arranged on the lead screw. The bottom surface of the lead screw nut is fixedly arranged on the second fixed bottom plate 31. Rotating the hand wheel 321 drives the lead screw to rotate, and the length of the second support device 3 can be adjusted.

[0069] When the length of the second support device 3 is adjusted to the right position, in order to facilitate the fixation of the second support plate 33, the first adjusting assembly 32 further comprises a positioning seat fixedly arranged on the second fixed base plate 31, and a positioning pin arranged in the positioning seat through the bottom end of the second support plate 33. When it is needed to adjust the length of the second support device 3 to adapt to different sizes of the axle housing, the positioning pin is rotated out of the positioning seat, the adjusting hand wheel 321 is adjusted, so that the second support device 3 reaches the required length, and then the positioning pin is tightened, so that the positioning pin is matched with the positioning seat for positioning the second support device 3, and the movement of the second support device 3 in the length direction is prevented.

[0070] As shown in Figure 7 or Figure 8 The pressing mechanism 34 comprises a support seat 341 fixedly arranged on the second support plate 33 and an axle housing in-place detection assembly 342 arranged in the support seat 341, and the axle housing in-place detection assembly 342 is used for detecting whether the axle housing is arranged on the pressing mechanism 34.

[0071] In order to facilitate the installation and positioning of the support seat 341, a third groove is formed on the second support plate 33, and the support seat 341 is fixedly arranged in the third groove. Preferably, the support seat 341 is in the shape of inverted V, and a notch is formed in the middle of the support seat 341, and the axle housing in-place detection assembly 342 is fixedly arranged in the notch.

[0072] The axle housing in-place detection assembly 342 comprises a detection support 3421 fixedly arranged on the support seat 341, a jacking component 3422, and an elastic component 3423; preferably, the elastic component 3423 is a spring. The detection support 3421 is provided with a first through hole 3424 in the height direction of the detection support 3421 and a second through hole 3425 in the length direction of the detection support 3421, and the first through hole 3424 and the second through hole 3425 are in communication with each other. The elastic component 3423 is arranged in the first through hole 3424, the elastic component 3423 is located at the bottom of the first through hole 3424, the jacking component 3422 is also arranged in the first through hole 3424, the jacking component 3422 is located above the elastic component 3423, the top end of the jacking component 3422 extends out of the first through hole 3424, and the elastic component 3423 can drive the jacking component 3422 to rise and fall in the first through hole 3424.

[0073] Preferably, the first through hole 3424 is a stepped hole with a circular cross section, and the jacking component 3422 is a stepped shaft, the steps of the stepped shaft and the steps of the stepped hole are matched with each other, and the steps of the stepped hole can limit the movement of the jacking component 3422 to prevent the jacking component 3422 from being pulled out of the first through hole 3424. Of course, the cross-sectional shape of the first through hole 3424 can also be other shapes, such as square, oval, etc., and at this time, the cross-sectional shape of the jacking component 3422 is matched with the cross-sectional shape of the first through hole 3424.

[0074] In one embodiment of this application, as Figure 10 As shown, the bridge housing positioning detection assembly 342 also includes airtight components 3426. Preferably, there are two airtight components 3426, which are symmetrically arranged in the second through hole 3425. The two airtight components 3426 are connected to the airtight detection system (not shown in the figure). For example, the airtight detection system includes an airtight detection sensor and a control system. When no bridge housing is placed on the clamping mechanism 34, the bottom surface of the lifting component 3422 is located above the second through hole 3425. The two airtight components 3426, the first through hole 3424, and the second through hole 3425 form a ventilation circuit. The airtight detection sensor can detect that the ventilation circuit is in a normal ventilation state. The airtight detection sensor can transmit a signal to the control system. The control system thus senses that no bridge housing is placed on the fixture, and therefore will not process the bridge housing. This avoids the situation where the bridge housing is not fixed on the fixture, but the machine tools have already started working according to the set program, thus avoiding dangers such as machine collisions and preventing damage to the machine tools or injury to the operators.

[0075] When a bridge housing is mounted on the fixture, the bridge housing presses down against the lifting component 3422, which in turn compresses the elastic component 3423, causing the lifting component 3422 to descend to a certain height. At this point, the side wall of the lifting component 3422 blocks the second through hole 3425. The two airtight components 3426, the first through hole 3424, and the second through hole 3425 do not form an air passage. The airtightness detection sensor can transmit a signal to the control system, which then detects the presence of a bridge housing on the fixture and controls the machine tool to process the bridge housing.

[0076] In one embodiment of this application, as Figure 11 As shown, a first light hole 3427 is formed along the height direction of the lifting component 3422, and a first groove is formed along the circumferential direction of the lifting component 3422. A second light hole 3428 is formed in the first groove, and the first light hole 3427 and the second light hole 3428 are interconnected. When no bridge housing is set on the clamping mechanism 34, since the first groove is formed in the circumferential direction of the lifting component 3422, the first through hole 3424, the second through hole 3425, the first light hole 3427 and the second light hole 3428 form a ventilation circuit. The airtightness detection sensor can detect that the ventilation circuit is in a normal ventilation state. The airtightness detection sensor can transmit the signal to the control system. The control system thus senses that no bridge housing is set on the fixture, so it will not process the bridge housing. This avoids the situation where the bridge housing is not fixed on the fixture, but the machine tools have started working according to the set program, thus avoiding the danger of machine collisions, machine tool damage or operator injury.

[0077] When the axle housing is set on the clamp, the axle housing will press down the jacking part 3422, the jacking part 3422 will press the elastic part 3423 to compress, and the jacking part 3422 will drop to a certain height. At this time, the first through hole 3424, the second through hole 3425, the first light hole 3427 and the second light hole 3428 will not form a ventilation circuit, and the air tightness detection sensor can transmit a signal to the control system, so that the control system senses that the axle housing is set on the clamp, and controls the machining tool to machine the axle housing.

[0078] In an embodiment of the present application, as shown in Figure 12 The jacking part 3422 is further provided with a third light hole 3429, and the first light hole 3427, the second light hole 3428 and the third light hole 3429 are in communication with each other. When there is no axle housing set on the pressing mechanism 34, the first through hole 3424, the second through hole 3425, the first light hole 3427, the second light hole 3428 and the third light hole 3429 form a ventilation circuit, and the air tightness detection sensor can detect that the ventilation circuit is in a normal ventilation state. The air tightness detection sensor can transmit a signal to the control system, so that the control system senses that there is no axle housing set on the clamp, and thus will not machine the axle housing, avoiding the case that the axle housing is not fixed on the clamp, but each machining tool has started working according to the set program, avoiding causing danger such as machine collision, and avoiding causing damage to the machine tool or injuring the operator.

[0079] When the axle housing is set on the clamp, the axle housing will press down the jacking part 3422, the jacking part 3422 will press the elastic part 3423 to compress, and the jacking part 3422 will drop to a certain height. At this time, the first through hole 3424, the second through hole 3425, the first light hole 3427, the second light hole 3428 and the third light hole 3429 will not form a ventilation circuit, and the air tightness detection sensor can transmit a signal to the control system, so that the control system senses that the axle housing is set on the clamp, and controls the machining tool to machine the axle housing.

[0080] As shown in Figure 7 Or Figure 8As shown, the pressing mechanism 34 further comprises two pressing assemblies 343 symmetrically arranged on the support base 341. The pressing assembly 343 comprises a pressing driving part 3431 fixedly arranged on the support base 341, a pressing part 3432, and a connecting rod 3433. Preferably, two mounting holes are arranged on the two inclined surfaces of the support base 341 respectively, and the pressing driving part 3431 is arranged in the mounting hole, and the extending direction of the pressing driving part 3431 is perpendicular to the inclined surface of the support base 341. One end of the pressing part 3432 is rotationally connected with the extending end of the pressing driving part 3431. One end of the connecting rod 3433 is rotationally connected with the support base 341, and the other end of the connecting rod 3433 is rotationally connected with the middle part of the pressing part 3432. When the extending end of the pressing driving part 3431 extends, the free end of the pressing part 3432 can be driven to descend and press the axle housing.

[0081] The pressing mechanism 34 further has a pressing detection function and a loosening detection function. As shown in Figure 13 The support base 341 is provided with a first air hole 3434 and a second air hole 3435, and the first air hole 3434 and the second air hole 3435 are respectively connected with the air tightness detection sensor. As an example, the pressing driving part 3431 is an oil cylinder. In the normal state, the air tightness detection sensor can detect that the first air hole 3434 and the second air hole 3435 are in the air state. When the piston rod of the pressing driving part 3431 extends, the piston rod rises to the pressing position. At this time, the piston rod blocks the first air hole 3434, the first air hole 3434 does not leak, the air tightness detection sensor detects that the first air hole 3434 leaks to 0, and feeds back the signal to the control system, and the control system senses that the axle housing is clamped in place.

[0082] When the piston rod of the pressing driving part 3431 is retracted, the piston rod descends to the loosening position, the piston rod blocks the second air hole 3435, the second air hole 3435 does not leak, the air tightness detection sensor detects that the second air hole 3435 leaks to 0, and feeds back the signal to the control system, and the control system senses that the axle housing is loosened in place. In the case of unattended in the automatic production line, the clamp can judge whether the workpiece is present or not, the workpiece is clamped, and the loosening position is detected, the interconnection with the automatic production line is realized, and the safety is increased.

[0083] As shown in Figure 5 Or Figure 6 In order to prevent the debris from falling into the pressing mechanism 34, the second support device 3 further comprises a cleaning assembly 36, and the cleaning assembly 36 comprises two air blowing parts arranged on one side of the pressing mechanism 34 respectively. The air blowing part is connected with the pneumatic system, and is used for blowing air to the pressing mechanism 34 to prevent the debris from falling into the pressing mechanism 34.

[0084] As shown in Figures 1 to 4As shown, the clamp capable of automatically detecting the presence or absence of the axle housing further comprises two cleaning mechanisms 4 symmetrically arranged on both sides of the first supporting mechanism 22, the cleaning mechanisms 4 are arranged on the first supporting plate 21, and each cleaning mechanism 4 comprises a cleaning seat fixedly arranged on the first supporting plate 21 and a plurality of spray heads arranged on the cleaning seat. The cleaning mechanism 4 can be externally connected to a cutting fluid tank, and the cutting fluid can be sprayed out through the spray heads to flush the waste generated in the machining process. At the same time, the upper surface of the first supporting plate 21 is an inclined surface, which can facilitate the waste generated in the machining process and the cutting fluid to flow out along the inclined surface.

[0085] In order to avoid the waste generated in the machining process from entering the first adjusting assembly 32 and hindering the first adjusting assembly 32 from adjusting the size of the clamp in the length direction, the second supporting device 3 further comprises two concertina guards 35, and the two concertina guards 35 are arranged on both sides of the second supporting plate 33, respectively. The concertina guard 35 can be telescopic in the length direction of the second supporting device 3.

[0086] In this application, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that the article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such article or device. Without more limitations, the elements defined by the statement "comprising" do not exclude the presence of other identical elements in the article or device including the elements.

[0087] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to the embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0088] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A fixture for automatically detecting the presence of an axle housing, comprising a first support device disposed on a first fixed base plate, and two second support devices disposed on the first fixed base plate, the two second support devices being symmetrically disposed on both sides of the first support device, characterized in that, the first support device comprises a first support plate fixedly disposed on the first fixed base plate, and a first support mechanism disposed on the first support plate; the second support device comprises a second fixed base plate fixedly disposed on the first fixed base plate, a first adjusting assembly disposed on the second fixed base plate, a second support plate disposed on the first adjusting assembly, and a pressing mechanism disposed on the upper portion of the second support plate; the first adjusting assembly is used to adjust the length of the second support device; the pressing mechanism comprises a support seat fixedly disposed on the second support plate, and an axle housing in-place detection assembly disposed in the support seat, the axle housing in-place detection assembly is used to detect whether an axle housing is disposed on the pressing mechanism; the axle housing in-place detection assembly comprises a detection seat fixedly disposed on the support seat, a jacking component, and an elastic component; the detection seat is provided with a first through hole in the height direction of the detection seat, and is provided with a second through hole in the length direction of the detection seat, the first through hole and the second through hole are in communication with each other; the elastic component is disposed in the first through hole, the jacking component is also disposed in the first through hole, the jacking component is located above the elastic component, the top end of the jacking component protrudes out of the first through hole, and the elastic component can drive the jacking component to rise and fall in the first through hole; the first support mechanism comprises two first auxiliary support assemblies, two second auxiliary support assemblies, two third auxiliary support assemblies, and two side pushing assemblies; the two first auxiliary support assemblies are symmetrically disposed in the length direction of the first fixed base plate; the two second auxiliary support assemblies are symmetrically disposed in the width direction of the first fixed base plate; the two third auxiliary support assemblies are symmetrically disposed between the first auxiliary support assemblies and the second auxiliary support assemblies with the two second auxiliary support assemblies as the symmetric axes; the two side pushing assemblies are symmetrically disposed between the first auxiliary support assemblies and the second auxiliary support assemblies with the two second auxiliary support assemblies as the symmetric axes, and the two side pushing assemblies are oppositely disposed with the two third auxiliary support assemblies. The axle housing in-place detection assembly further comprises airtight components, the airtight components are disposed in the second through hole, when no axle housing is disposed on the pressing mechanism, the two airtight components, the first through hole, and the second through hole form an air circulation loop. ​ ​ ​ ​ ​ ​ ​ 2. The fixture of claim 1, wherein ​ 3. The fixture of claim 1, wherein The jacking component is provided with a first light hole along the height direction of the jacking component, a first groove along the circumferential direction of the jacking component, a second light hole in the first groove, and the first light hole and the second light hole are in communication with each other.

4. The fixture of claim 3, wherein The jacking component is further provided with a third light hole, and the first light hole, the second light hole and the third light hole are in communication with each other.

5. The fixture of claim 1, wherein The pressing mechanism further comprises two pressing assemblies symmetrically arranged on the support seat, the pressing assembly comprising a pressing driving part fixedly arranged on the support seat, a pressing part and a connecting rod; one end of the pressing part is rotatably connected with the protruding end of the pressing driving part; one end of the connecting rod is rotatably connected with the support seat, and the other end of the connecting rod is rotatably connected with the middle part of the pressing part; when the protruding end of the pressing driving part is protruded, the free end of the pressing part can be driven to descend and press the bridge shell.

6. The fixture of claim 5, wherein, The cleaning mechanism is arranged on the first support plate, and the cleaning mechanism is used for flushing the waste generated in the machining process.

7. The fixture of claim 1, wherein The second support device further comprises two concertina guards, and the two concertina guards are arranged on the two sides of the second support plate respectively, and the concertina guard can be telescopic in the length direction of the second support device.

8. The fixture of claim 5, wherein, The first support device further comprises a second adjusting assembly, the second adjusting assembly comprising an adjusting seat, an adjusting block, a first adjusting part and a second adjusting part, the adjusting block being fixedly arranged on the first support plate, the adjusting seat being arranged on the first support plate, the first adjusting part and the second adjusting part penetrating through the adjusting block respectively, the protruding end of the first adjusting part abutting against the side wall of the adjusting seat, and the protruding end of the second adjusting part being threadedly connected with the adjusting seat, the adjusting length of the first adjusting part and the second adjusting part being adjusted to adjust the position of the adjusting seat on the first support plate.

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