A composite positioning fixture for an agricultural machine gear box shell

Abstract

The application provides a compound positioning clamp for an agricultural machinery gear box shell, belonging to the technical field of gear box production. The compound positioning clamp for the agricultural machinery gear box shell comprises a machining center, the inside of the machining center is connected with a bottom plate, the upper side of the bottom plate is provided with a turnover mechanism for driving the gear box shell to turn over, the upper side of the bottom plate is provided with a supporting mechanism for providing a supporting force when the gear box shell is machined, the two sides of the bottom plate are provided with a moving mechanism, the gear box shell can be driven to rotate by controlling a first motor, the gear box shell is driven to turn over, when one side of the gear box shell is machined by the machining center, the other side of the gear box shell can be machined by turnover, and when the machining center is machining, a supporting table is arranged at the bottom of the gear box shell, limit pieces are arranged at the two sides, the gear box shell can be prevented from moving during machining, and the stability during machining of the machining center is improved.

Description

Technical Field

[0001] This application relates to the field of gearbox manufacturing, and more specifically, to a composite positioning fixture for an agricultural machinery gearbox housing. Background Technology

[0002] The gearbox is the core transmission device in agricultural machinery used to transmit power, regulate speed, and change the direction of motion. As the "joint" of the agricultural machinery power system, the gearbox transmits the power generated by the engine to the working parts (such as harvester blades and tractor drive wheels) through gear meshing, realizing energy conversion and distribution.

[0003] In the existing technology, during the production process of agricultural machinery gearbox housings, multi-reference surface positioning and composite clamping mechanisms are used to fix the agricultural machinery gearbox housings, ensuring high precision and stability during the machining process in the machining center.

[0004] However, the existing composite positioning fixture for agricultural machinery gearbox housing still has the following shortcomings in use: Although the existing clamping mechanism can stably fix the agricultural machinery gearbox housing, since the agricultural machinery gearbox housing needs to be processed on multiple sides, when processing the other sides of the gearbox housing, it is necessary to release the fixing mechanism, and then manually turn the gearbox housing with the surface to be processed facing upwards, and then fix it with the fixing mechanism again. Utility Model Content

[0005] To overcome the above deficiencies, this application provides a composite positioning fixture for agricultural machinery gearbox housing, which aims to improve the problem that when processing the remaining surfaces of the gearbox housing, it is necessary to release the fixing mechanism, then manually align the surface of the gearbox housing to be processed upwards, and then fix it back in place by the fixing mechanism.

[0006] This application provides a composite positioning fixture for an agricultural machinery gearbox housing, including a machining center. The machining center has a base plate connected to its interior. A flipping mechanism for rotating the gearbox housing is provided above the base plate. A support mechanism for providing support force during the machining of the gearbox housing is also provided above the base plate. Moving mechanisms are provided on both sides of the base plate.

[0007] The flipping mechanism includes two sets of mounting plates. A first L-shaped component is connected to the top of one set of mounting plates, and a second L-shaped component is connected to the top of the other set of mounting plates. One end of the first L-shaped component is connected to a first hydraulic telescopic rod, and the other end of the first hydraulic telescopic rod is rotatably connected to a first clamping plate.

[0008] In one specific implementation, one end of the second L-shaped member is connected to a first motor, and the output shaft of the first motor is connected to a second clamping plate.

[0009] In the above implementation process, by setting the first motor, the output shaft of the first motor can be controlled to rotate, which drives the second clamping plate to rotate, and drives the gearbox housing clamped between the first clamping plate and the second clamping plate to rotate. After one side of the gearbox housing is processed, the gearbox housing can be flipped so that the other side of the gearbox housing that needs to be processed is facing upwards.

[0010] In one specific implementation, the moving mechanism includes a first housing and a second housing, which are respectively connected to the two sides of the base plate. A third motor is connected to one side of the first housing. The output shaft of the third motor passes through the first housing and is connected to a second screw. The other end of the second screw is rotatably connected inside the first housing.

[0011] In the above implementation process, by setting up a third motor, the output shaft of the third motor can be controlled to rotate, thereby driving the second screw to rotate inside the first housing.

[0012] In one specific implementation, the outer surface of the second screw is threadedly connected with a set of second threaded seats and two sets of third threaded seats, and the second threaded seats and the third threaded seats are slidably connected inside the first housing.

[0013] In the above implementation process, by setting the second threaded seat and the third threaded seat, the second threaded seat and the third threaded seat can slide inside the first housing when the second screw rotates.

[0014] In one specific embodiment, a slide rod is connected inside the second housing, and a set of first sliders and two sets of second sliders are slidably connected to the outer surface of the slide rod. The first sliders and the second sliders are slidably connected inside the second housing.

[0015] In the above implementation process, by setting the slide bar, the first slider and the second slider can slide on the outer surface of the slide bar.

[0016] In one specific implementation, the first slider is connected to the bottom of another set of mounting plates, and connecting plates are connected to both sides of the first slider. The other end of the connecting plate is connected to one side of the second slider, and the second threaded seat is connected to the bottom of the set of mounting plates.

[0017] In the above implementation process, by setting the connecting plate, the first slider can be driven to slide on the outer surface of the slide rod when the second slider slides.

[0018] In one specific implementation, the support mechanism includes four sets of second hydraulic telescopic rods, two of which are connected to the top of the third threaded seat, and the other two are connected to the top of the second slider. The other end of the second hydraulic telescopic rod is connected to a support platform.

[0019] In the above implementation process, by setting the second hydraulic telescopic rod, the height of the support platform can be adjusted by controlling the extension and retraction of the second hydraulic telescopic rod. When machining the gearbox housing in the machining center, the top of the support platform can be made to fit tightly against the bottom of the gearbox housing, and the support platform provides a certain support force to improve the stability of the gearbox housing machining.

[0020] In one specific implementation, a cavity is provided at the top of the support platform, a second motor is connected to one side of the support platform, the output shaft of the second motor passes through one side of the support platform and is connected to a bidirectional screw, and the other end of the bidirectional screw is rotatably connected to the inner wall of the cavity.

[0021] In the above implementation process, by setting up the second motor, the rotation of the second motor can be controlled to drive the second bidirectional screw to rotate inside the cavity.

[0022] In one specific implementation, the outer surface of the bidirectional screw is threaded with two sets of first threaded seats, which are slidably connected inside the cavity.

[0023] In the above implementation process, by setting the first threaded seat, the two sets of first threaded seats can be moved when the bidirectional screw rotates, thereby adjusting the distance between the two sets of first threaded seats.

[0024] In one specific implementation, a limiting plate is connected to the top of the first threaded seat.

[0025] In the above implementation process, by setting the limiting plate, when the first threaded seat moves, the limiting plate can be driven to move, and the limiting plate can clamp the gearbox housing in another direction, which can improve the stability of the gearbox housing during processing.

[0026] Compared with the prior art, the beneficial effects of this application are as follows: By setting up the flipping mechanism and the support mechanism, the gearbox housing can be rotated by controlling the first motor, which in turn flips the gearbox housing. This allows the machining center to process other sides of the gearbox housing after processing one side. Furthermore, during machining, the support platform at the bottom of the gearbox housing and the limiters on both sides prevent the gearbox housing from moving during processing, improving the stability of the machining center. This solves the problem that when processing the remaining sides of the gearbox housing, it is necessary to release the fixing mechanism, manually turn the gearbox housing to be processed upwards, and then fix it back in place by the fixing mechanism. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of a composite positioning fixture for an agricultural machinery gearbox housing provided in an embodiment of this application;

[0029] Figure 2 A schematic diagram of the base plate structure provided for an embodiment of this application;

[0030] Figure 3 A schematic diagram of the second shell structure provided for an embodiment of this application;

[0031] Figure 4 A schematic diagram of the second screw structure provided for an embodiment of this application;

[0032] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0033] Figure 6 A schematic diagram of the first motor structure provided for an embodiment of this application;

[0034] Figure 7 A schematic diagram of the cavity structure provided for an embodiment of this application;

[0035] Figure 8 A schematic diagram of a bidirectional screw structure provided for an embodiment of this application.

[0036] In the diagram: 1. Machining center; 2. Tilting mechanism; 201. Mounting plate; 202. First L-shaped component; 203. First hydraulic telescopic rod; 204. First clamping plate; 205. Second clamping plate; 206. First motor; 207. Second L-shaped component; 3. Support mechanism; 301. Support platform; 302. Second hydraulic telescopic rod; 303. Second motor; 304. Cavity; 305. First threaded seat; 306. Bidirectional screw; 307. Limiting plate; 4. Moving mechanism; 401. First housing; 402. Third motor; 403. Second housing; 404. Sliding rod; 405. Second threaded seat; 406. Second screw; 407. Third threaded seat; 408. First slider; 409. Second slider; 4010. Connecting plate; 5. Base plate. Detailed Implementation

[0037] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0038] Please see Figure 1 This application provides a composite positioning fixture for an agricultural machinery gearbox housing, including a machining center 1.

[0039] Please see Figure 1 and Figure 2 The machining center 1 is internally connected to a base plate 5. A flipping mechanism 2 is provided above the base plate 5 to drive the gearbox housing to flip. A support mechanism 3 is provided above the base plate 5 to provide support force during the machining of the gearbox housing. Moving mechanisms 4 are provided on both sides of the base plate 5.

[0040] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The flipping mechanism 2 includes two sets of mounting plates 201. The top of one set of mounting plates 201 is connected to a first L-shaped member 202, and the top of the other set of mounting plates 201 is connected to a second L-shaped member 207. One end of the first L-shaped member 202 is connected to a first hydraulic telescopic rod 203, and the other end of the first hydraulic telescopic rod 203 is rotatably connected to a first clamping plate 204.

[0041] In a specific configuration, one end of the second L-shaped component 207 is connected to a first motor 206, and the output shaft of the first motor 206 is connected to a second clamping plate 205. By controlling the output shaft of the first motor 206 to rotate, the second clamping plate 205 can be rotated, causing the gearbox housing clamped between the first clamping plate 204 and the second clamping plate 205 to rotate. After one side of the gearbox housing is machined, the gearbox housing can be flipped so that the other side of the gearbox housing that needs to be machined faces upward.

[0042] In a specific configuration, the moving mechanism 4 includes a first housing 401 and a second housing 403. The first housing 401 and the second housing 403 are respectively connected to the two sides of the base plate 5. A third motor 402 is connected to one side of the first housing 401. The output shaft of the third motor 402 passes through the first housing 401 and is connected to a second screw 406. The other end of the second screw 406 is rotatably connected inside the first housing 401. By configuring the third motor 402, the second screw 406 can be driven to rotate inside the first housing 401 by controlling the rotation of the output shaft of the third motor 402.

[0043] In a specific configuration, the outer surface of the second screw 406 is threadedly connected to a set of second threaded seats 405 and two sets of third threaded seats 407. The second threaded seats 405 and the third threaded seats 407 are slidably connected inside the first housing 401. The second threaded seats 405 and the third threaded seats 407 are configured to slide inside the first housing 401 when the second screw 406 rotates.

[0044] In a specific configuration, a slide rod 404 is connected inside the second housing 403. A set of first sliders 408 and two sets of second sliders 409 are slidably connected to the outer surface of the slide rod 404. The first sliders 408 and the second sliders 409 are slidably connected inside the second housing 403. The slide rod 404 enables the first sliders 408 and the second sliders 409 to slide on the outer surface of the slide rod 404.

[0045] In a specific configuration, the first slider 408 is connected to the bottom of another set of mounting plates 201. Both sides of the first slider 408 are connected to connecting plates 4010. The other end of the connecting plate 4010 is connected to one side of the second slider 409. The second threaded seat 405 is connected to the bottom of the set of mounting plates 201. The connecting plate 4010 enables the first slider 408 to slide on the outer surface of the slide rod 404 when the second slider 409 slides.

[0046] In its specific configuration, the support mechanism 3 includes four sets of second hydraulic telescopic rods 302. Two sets of second hydraulic telescopic rods 302 are connected to the top of the third threaded seat 407, and the other two sets of second hydraulic telescopic rods 302 are connected to the top of the second slider 409. The other end of the second hydraulic telescopic rods 302 is connected to a support platform 301. By controlling the extension and retraction of the second hydraulic telescopic rods 302, the height of the support platform 301 can be adjusted. When the gearbox housing is processed in the machining center 1, the top of the support platform 301 can be pressed tightly against the bottom of the gearbox housing, providing a certain supporting force and improving the stability of the gearbox housing processing.

[0047] In a specific configuration, a cavity 304 is provided on the top of the support platform 301. A second motor 303 is connected to one side of the support platform 301. The output shaft of the second motor 303 passes through one side of the support platform 301 and is connected to a bidirectional screw 306. The other end of the bidirectional screw 306 is rotatably connected to the inner wall of the cavity 304. By controlling the rotation of the second motor 303, the second bidirectional screw 306 can be driven to rotate inside the cavity 304.

[0048] In a specific configuration, the outer surface of the bidirectional screw 306 is threaded with two sets of first threaded seats 305. The first threaded seats 305 are slidably connected inside the cavity 304. The first threaded seats 305 can be used to move the two sets of first threaded seats 305 when the bidirectional screw 306 rotates, thereby adjusting the distance between the two sets of first threaded seats 305.

[0049] In a specific configuration, a limiting plate 307 is connected to the top of the first threaded seat 305. The limiting plate 307 can move when the first threaded seat 305 moves, thereby clamping the gearbox housing in another direction and improving the stability of the gearbox housing during processing.

[0050] The working principle of this composite positioning fixture for agricultural machinery gearbox housings is as follows: When using the composite positioning fixture for agricultural machinery gearbox housings, the gearbox housing can be clamped between the first clamping plate 204 and the second clamping plate 205 by controlling the first hydraulic telescopic rod 203. After one side of the gearbox housing is processed, when the other side needs to be processed, the gearbox housing can be rotated by controlling the first motor 206, causing the gearbox housing to flip, so that the machining center 1 can process the other side of the gearbox housing. Before processing, the second hydraulic telescopic rod 302 is extended and retracted by controlling it, causing the support platform 301 to move, so that the top of the support platform 301 is close to the bottom of the gearbox housing. The support platform 301 provides a certain support force, and the second motor 303 drives the bidirectional screw 306 in the cavity 304. The internal rotation of the first threaded seat 305 drives the two sets of first threaded seats 305 to move, thereby adjusting the distance between the two sets of first threaded seats 305. The movement of the first threaded seat 305 drives the limit plate 307 to move, and the limit plate 307 clamps the gearbox housing in another direction, which can improve the stability of the gearbox housing during processing. Furthermore, by controlling the third motor 402, the second screw 406 is driven to rotate, which drives the second threaded seat 405 and the third threaded seat 407 to move, thereby adjusting the position of the support table 301, the first clamping plate 204 and the second clamping plate 205, and thus adjusting the position of the gearbox housing. This solves the problem that when processing the other surfaces of the gearbox housing, it is necessary to release the fixing mechanism, then manually turn the gearbox housing with the surface to be processed facing upwards, and then fix it with the fixing mechanism.

[0051] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A composite positioning fixture for an agricultural machinery gearbox housing, characterized in that, include A machining center (1) is connected to a base plate (5) inside the machining center (1). A flipping mechanism (2) for driving the gearbox housing to flip is provided above the base plate (5). A support mechanism (3) for providing support force when machining the gearbox housing is provided above the base plate (5). A moving mechanism (4) is provided on both sides of the base plate (5). The flipping mechanism (2) includes two sets of mounting plates (201). The top of one set of mounting plates (201) is connected to a first L-shaped member (202), and the top of the other set of mounting plates (201) is connected to a second L-shaped member (207). One end of the first L-shaped member (202) is connected to a first hydraulic telescopic rod (203), and the other end of the first hydraulic telescopic rod (203) is rotatably connected to a first clamping plate (204).

2. The composite positioning fixture for an agricultural machinery gearbox housing according to claim 1, characterized in that, One end of the second L-shaped piece (207) is connected to the first motor (206), and the output shaft of the first motor (206) is connected to the second clamping plate (205).

3. The composite positioning fixture for an agricultural machinery gearbox housing according to claim 1, characterized in that, The moving mechanism (4) includes a first housing (401) and a second housing (403). The first housing (401) and the second housing (403) are respectively connected to the two sides of the base plate (5). A third motor (402) is connected to one side of the first housing (401). The output shaft of the third motor (402) passes through the first housing (401) and is connected to a second screw (406). The other end of the second screw (406) is rotatably connected to the inside of the first housing (401).

4. The composite positioning fixture for an agricultural machinery gearbox housing according to claim 3, characterized in that, The outer surface of the second screw (406) is threaded with a set of second threaded seats (405) and two sets of third threaded seats (407), and the second threaded seats (405) and the third threaded seats (407) are slidably connected inside the first housing (401).

5. A composite positioning fixture for an agricultural machinery gearbox housing according to claim 4, characterized in that, The second housing (403) is internally connected to a slide rod (404), and the outer surface of the slide rod (404) is slidably connected to a set of first sliders (408) and two sets of second sliders (409). The first sliders (408) and the second sliders (409) are slidably connected to the inside of the second housing (403).

6. A composite positioning fixture for an agricultural machinery gearbox housing according to claim 5, characterized in that, The first slider (408) is connected to the bottom of another set of mounting plates (201). Both sides of the first slider (408) are connected to connecting plates (4010). The other end of the connecting plate (4010) is connected to one side of the second slider (409). The second threaded seat (405) is connected to the bottom of a set of mounting plates (201).

7. A composite positioning fixture for an agricultural machinery gearbox housing according to claim 1, characterized in that, The support mechanism (3) includes four sets of second hydraulic telescopic rods (302), two sets of second hydraulic telescopic rods (302) are connected to the top of the third threaded seat (407), and the other two sets of second hydraulic telescopic rods (302) are connected to the top of the second slider (409). The other end of the second hydraulic telescopic rod (302) is connected to a support platform (301).

8. A composite positioning fixture for an agricultural machinery gearbox housing according to claim 7, characterized in that, The top of the support platform (301) is provided with a cavity (304). A second motor (303) is connected to one side of the support platform (301). The output shaft of the second motor (303) passes through one side of the support platform (301) and is connected to a bidirectional screw (306). The other end of the bidirectional screw (306) is rotatably connected to the inner wall of the cavity (304).

9. A composite positioning fixture for an agricultural machinery gearbox housing according to claim 8, characterized in that, The outer surface of the bidirectional screw (306) is threaded with two sets of first thread seats (305), which are slidably connected inside the cavity (304).

10. A composite positioning fixture for an agricultural machinery gearbox housing according to claim 9, characterized in that, The top of the first threaded seat (305) is connected to a limiting plate (307).

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