A gearbox case bearing press-fitting device

Abstract

The utility model relates to the technical field of gearbox bearing assembly equipment, and provides a gearbox case bearing press-fitting device, including a press-fitting machine, a conveying frame is provided at the bottom of the press-fitting machine, a pallet frame is movably installed on the conveying frame, at least one fixed tool is provided near the middle of the pallet frame, at least one leveling tool is respectively installed on both sides of the pallet frame and close to the fixed tool, the leveling tool is movably installed on the lifting and adjusting mechanism, the lifting and adjusting mechanism is installed on the pallet frame, the gearbox case is placed on the pallet frame, the bearing mounting part of the gearbox case is sleeved on the fixed tool, and the level of the gearbox case is adjusted by the leveling tool. The utility model can conveniently adjust the level of the gearbox case according to the different shapes of the gearbox case, ensure the smooth installation of the bearing on the gearbox case, and avoid the problem of the deflection of the shaft seat installation due to the deflection of the gearbox case during press-fitting.

Description

Technical Field

[0001] The utility model relates to the technical field of gearbox bearing assembly equipment, in particular to a gearbox box bearing press-fitting device. Background Art

[0002] The gearbox, also known as the transmission, is an automotive accessory used to change the speed and torque from the engine, and can fix or change the transmission ratio of the output shaft and the input shaft in stages. The gearbox has the functions of realizing reversing, changing the transmission ratio to adapt to different driving conditions, and using the neutral gear to cut off the power transmission without shutting down the engine. It is widely used in the field of internal combustion engines.

[0003] The transmission is composed of a speed transmission mechanism and an operating mechanism. A power output device can be added when necessary. The manual transmission is mainly composed of gears and shafts, and speed and torque changes are generated through different gear combinations; while the automatic transmission is mainly composed of a torque converter, planetary gears, a hydraulic pitch system and a hydraulic operating system, and speed and torque changes are achieved through hydraulic transmission and gear combinations.

[0004] The transmission shaft and bearings are important components of its transmission mechanism. The installation accuracy of the bearings and the transmission shaft determines the service life of the vehicle. The bearings are usually pre-pressed onto the transmission case. During the bearing pressing process, the position accuracy of the bearings and the transmission case must be ensured so that the bearings can be smoothly installed on the bearing mounting part of the transmission case. If the transmission case is skewed during installation, it is easy to cause the bearing installation to be skewed, affecting the installation accuracy of the transmission shaft and bearings, and thus affecting the service life of the vehicle. Utility Model Content

[0005] In order to overcome the defects of the prior art pointed out above, the utility model provides a gearbox case bearing press-fitting device, which can conveniently adjust the horizontality of the gearbox case according to the different shapes of the gearbox case, ensure that the bearing is smoothly installed on the gearbox case, and avoid the problem of skewed installation of the shaft seat due to the skewness of the gearbox case during press-fitting.

[0006] In order to solve the above technical problems, the technical solution of the utility model is:

[0007] A gearbox case bearing press-fitting device comprises a press machine, a conveying frame is provided at the bottom of the press machine, a pallet frame is movably mounted on the conveying frame, at least one fixed tool is provided near the middle of the pallet frame, at least one leveling tool is respectively mounted on both sides of the pallet frame and close to the fixed tool, the leveling tool is movably mounted on a lifting and adjusting mechanism, the lifting and adjusting mechanism is mounted on the pallet frame, a gearbox case is placed on the pallet frame, a bearing mounting portion of the gearbox case is sleeved on the fixed tool, and the horizontality of the gearbox case is adjusted by the leveling tool.

[0008] As an improved technical solution, the pallet frame includes a top plate and a bottom plate, a plurality of support plates are arranged between the top plate and the bottom plate, the fixing tool, the leveling tool and the lifting and adjusting mechanism are all installed on the top plate, and the bottom plate is movably arranged on the conveying frame.

[0009] As an improved technical solution, the lifting and lowering adjustment mechanism includes a lead screw, which is rotatably mounted on the top plate, and one end of the lead screw passes through the top plate and is connected to a reduction motor, the reduction motor is mounted on a side of the top plate close to the bottom plate, and the other end of the lead screw is threadedly connected to the leveling fixture;

[0010] At least two guide rods are also installed on the top plate. The guide rods are symmetrically arranged along the center line of the lead screw, and the guide rods are slidably connected to the leveling tooling.

[0011] As an improved technical solution, the leveling tool comprises a leveling support, the top of the leveling support abuts against the gearbox housing, a threaded hole is provided at the center of the leveling support, and the threaded hole is threadedly connected to the lead screw;

[0012] The leveling support is also provided with a guide hole corresponding to the guide rod, and the guide hole is slidably matched with the guide rod.

[0013] As an improved technical solution, a first boss is further provided at one end of the leveling support member away from the top plate, and the first boss is sleeved in a through hole provided on the gearbox housing.

[0014] As an improved technical solution, the fixing tool includes a fixing support member, which is fixed to the top plate by bolts. A second boss is provided at one end of the fixing support member away from the top plate, and the second boss is mounted on a bearing mounting portion of the gearbox housing.

[0015] As an improved technical solution, the height dimension of the second boss is smaller than the thickness of the side wall at the bearing mounting portion of the gearbox housing;

[0016] The circumference of the second boss is provided with a lead-in angle;

[0017] A groove is provided at the center of the second boss, and a threaded hole for bolting the fixing support member to the top plate is provided in the groove.

[0018] As an improved technical solution, the conveying frame includes two frames arranged opposite to each other, a plurality of supporting rollers are arranged between the two frames, and the support frame is slidably arranged on the supporting rollers;

[0019] The two frames are also provided with baffles respectively along the moving direction, and the height dimension of the baffles is greater than the thickness dimension of the bottom plate.

[0020] After adopting the above technical solution, the beneficial effects of the utility model are:

[0021] By setting a press machine, a conveying frame is provided at the bottom of the press machine, a pallet frame is movably installed on the conveying frame, at least one fixed tool is provided near the middle of the pallet frame, and at least one leveling tool is respectively installed on the pallet frame and on both sides close to the fixed tool, and the leveling tool is movably installed on the lifting and adjusting mechanism, and the position of the leveling tool in the vertical direction can be adjusted by the lifting and adjusting mechanism, and the leveling tool is in contact with the gearbox case body, thereby adjusting the horizontality of the gearbox case body and making the gearbox case body in a horizontal state, and cooperating with the press machine, the bearing can be smoothly pressed onto the bearing mounting part of the gearbox case body, avoiding the problem of deflection during the pressing of the bearing, thereby ensuring the installation accuracy of the bearing and the service life of the vehicle, supporting the gearbox case body through the fixed tool, and facilitating the transmission and transfer of the gearbox case body between different workstations through the conveying frame;

[0022] The lifting and lowering adjustment mechanism includes a lead screw, which is rotatably mounted on the top plate, one end of which is connected to the reduction motor, and the other end is threadedly connected to the leveling fixture. At least two guide rods are also mounted on the top plate, and the guide rods are symmetrically arranged along the center line of the lead screw. The guide rods are slidably connected to the leveling fixture, and the lead screw can be driven to rotate by the rotation of the reduction motor. During the rotation of the lead screw, the leveling fixture is driven to move along the guide rod, thereby realizing the movement of the leveling fixture in the vertical direction, thereby realizing the horizontal adjustment of the gearbox housing;

[0023] The fixing fixture includes a fixing support, which is fixed to the top plate by bolts, and a second boss is provided at one end of the fixing support away from the top plate, and the second boss is sleeved on the bearing mounting portion of the gearbox housing, the gearbox housing is supported by the fixing support, and the bearing mounting portion of the gearbox housing is positioned by the second boss;

[0024] The height of the second boss is smaller than the thickness of the side wall of the bearing mounting portion of the gearbox housing, so that the second boss is conveniently mounted on the bearing mounting portion of the gearbox housing for positioning. The circumference of the second boss is provided with an introduction angle, which facilitates the introduction of the gearbox housing. A groove is provided at the center of the second boss, and a threaded hole is provided in the groove. The fixing tool is conveniently mounted on the top plate through the groove and the threaded hole, so that the installation is convenient and quick, and the position adjustment of the fixing tool is also convenient.

[0025] The two frames are also provided with baffles along the moving direction. The height of the baffles is greater than the thickness of the bottom plate. The baffles are provided to facilitate limiting and blocking the pallet frame to prevent the pallet frame from falling from the conveyor frame.

[0026] In summary, the utility model provides a gearbox case bearing press-fitting device, which can conveniently adjust the horizontality of the gearbox case according to the different shapes of the gearbox case, ensure that the bearing is smoothly installed on the gearbox case, and avoid the problem of skewed installation of the shaft seat due to the skewness of the gearbox case during press-fitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In addition, in the drawings, the components or parts are not necessarily drawn according to the actual scale.

[0028] Figure 1 It is a schematic diagram of the structure of the utility model;

[0029] Figure 2 It is a schematic diagram of the structure of the conveying frame, the pallet frame, the fixing tool and the leveling tool in the utility model;

[0030] Figure 3 for Figure 2 A schematic cross-sectional structure diagram of ;

[0031] Reference numerals:

[0032] 1. Pressing machine, 2. Conveying frame, 201. Frame, 202. Support roller, 203. Baffle, 3. Pallet rack, 301. Top plate, 302. Bottom plate, 303. Support plate, 4. Fixing tool, 401. Fixing support member, 402. Second boss, 403. Lead-in angle, 404. Groove, 5. Leveling tool, 501. Leveling support member, 502. Threaded hole, 503. Guide hole, 504. First boss, 6. Lifting and lowering adjustment mechanism, 601. Screw, 602. Reduction motor, 603. Guide rod, 7. Gearbox housing. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0036] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0037] like Figure 1-Figure 3 As shown, a gearbox case bearing press-fitting device comprises a press-fitting machine 1, a conveying frame 2 is provided at the bottom of the press-fitting machine 1, a pallet frame 3 is movably installed on the conveying frame 2, a gearbox case 7 is placed on the pallet frame 3, the pallet frame 3 is placed on the conveying frame 2, and the pallet frame 3 is manually pushed to move between different workstations along the conveying frame 2, at least one fixed tool 4 is provided near the middle of the pallet frame 3, at least one leveling tool 5 is respectively installed on both sides of the pallet frame 3 and close to the fixed tool 4, the leveling tool 5 is movably installed on the lifting and adjusting mechanism 6, the lifting and adjusting mechanism 6 is installed on the pallet frame 3, the gearbox case 7 is placed on the pallet frame 3, and the bearing mounting part of the gearbox case 7 is sleeved It is arranged on the fixed tooling 4, and the horizontality of the gearbox case 7 is adjusted by the leveling tooling 5. The position of the leveling tooling 5 in the vertical direction can be adjusted by the lifting and adjusting mechanism 6. The leveling tooling 5 is in contact with the gearbox case 7, thereby adjusting the horizontality of the gearbox case 7 and making the gearbox case 7 in a horizontal state. In conjunction with the press-fitting machine 1, the bearing can be smoothly press-fitted onto the bearing mounting portion of the gearbox case 7, avoiding the problem of deflection during bearing press-fitting, thereby ensuring the installation accuracy of the bearing and the service life of the vehicle. The fixed tooling 4 supports the gearbox case 7, and the conveying frame 2 facilitates the conveying and transfer of the gearbox case 7 between different workstations.

[0038] like Figure 1-Figure 3As shown, the pallet frame 3 includes a top plate 301 and a bottom plate 302, and a plurality of support plates 303 are arranged between the top plate 301 and the bottom plate 302. In this embodiment, the support plates 303 can be welded to the top plate 301 and the bottom plate 302 by welding, the fixing tool 4, the leveling tool 5 and the lifting and adjusting mechanism 6 are all installed on the top plate 301, and the bottom plate 302 is movably arranged on the conveying frame 2.

[0039] like Figure 1-Figure 3 As shown, the lifting adjustment mechanism 6 includes a lead screw 601, which is rotatably mounted on the top plate 301 through a bearing, and one end of the lead screw 601 passes through the top plate 301 and is connected to a reduction motor 602, which is mounted on one side of the top plate 301 close to the bottom plate 302, and the other end of the lead screw 601 is threadedly connected to the leveling fixture 5;

[0040] At least two guide rods 603 are also installed on the top plate 301. The guide rods 603 are symmetrically arranged along the center line of the lead screw 601. The guide rods 603 are slidingly connected to the leveling tool 5. The rotation of the reduction motor 602 can drive the lead screw 601 to rotate. During the rotation of the lead screw 601, the leveling tool 5 is driven to move along the guide rods 603, thereby realizing the movement of the leveling tool 5 in the vertical direction, thereby realizing the horizontal adjustment of the gearbox case 7.

[0041] like Figure 1-Figure 3 As shown, the leveling tool 5 includes a leveling support 501, the top of the leveling support 501 is against the gearbox housing 7, and a threaded hole 502 is provided at the center of the leveling support 501, and the threaded hole 502 is threadedly connected with the lead screw 601. By setting the threaded hole 502, when the lead screw 601 rotates under the drive of the reduction motor 602, the leveling support 501 will be pushed to move axially along the guide rod 603;

[0042] The leveling support 501 is also provided with a guide hole 503 corresponding to the guide rod 603 , and the guide hole 503 is slidably matched with the guide rod 603 . By providing the guide hole 503 , the leveling support 501 can slide axially along the guide rod 603 .

[0043] like Figure 1-Figure 3 As shown, a first boss 504 is further provided at one end of the leveling support 501 away from the top plate 301 , and the first boss 504 is sleeved in a through hole provided on the gearbox housing 7 .

[0044] like Figure 1-Figure 3As shown, the fixing fixture 4 includes a fixing support 401, which is fixed to the top plate 301 by bolts. By adopting bolt connection, when the bolts are loosened, the position of the fixing support 401 on the top plate 301 can be adjusted. A second boss 402 is provided at one end of the fixing support 401 away from the top plate 301, and the second boss 402 is sleeved on the bearing mounting portion of the gearbox case 7. The gearbox case 7 is supported by the fixing support 401, and the bearing mounting portion of the gearbox case 7 is positioned by the second boss 402.

[0045] like Figure 1-Figure 3 As shown, the height dimension of the second boss 402 is smaller than the thickness of the side wall at the bearing mounting portion of the gearbox housing 7. Since the height dimension of the second boss 402 is smaller than the thickness of the side wall at the bearing mounting portion of the gearbox housing 7, it is convenient for the second boss 402 to be mounted on the bearing mounting portion of the gearbox housing 7 for positioning. At the same time, since the height dimension of the second boss 402 is smaller than the thickness dimension of the side wall, collision with the bearing is avoided during press-fitting of the bearing.

[0046] The circumference of the second boss 402 is provided with an introduction angle 403, and the introduction angle 403 is provided to facilitate the gearbox housing 7 to be mounted on the second boss 402;

[0047] A groove 404 is provided at the center of the second boss 402, and a threaded hole 502 is provided in the groove 404 for bolting the fixed support 401 to the top plate 301. The groove 404 and the threaded hole 502 facilitate the installation of the fixing tool 4 on the top plate 301, which is convenient and easy to install, and also convenient to adjust the position of the fixing tool 4.

[0048] like Figure 1-Figure 3 As shown, the conveying frame 2 includes two frames 201 arranged opposite to each other, a plurality of supporting rollers 202 are arranged between the two frames 201, and the support frame 3 is slidably arranged on the supporting rollers 202;

[0049] The two frames 201 are also provided with baffles 203 along the moving direction. The height dimension of the baffles 203 is greater than the thickness dimension of the bottom plate 302. By providing the baffles 203, it is convenient to limit and block the pallet frame 3 to prevent the pallet frame 3 from falling from the conveyor frame 2.

[0050] For ease of understanding, the working process of this embodiment is given below:

[0051] like Figure 1-Figure 3As shown, first, the gearbox case 7 is placed on the support frame 3, and the bearing mounting portion of the gearbox case 7 is sleeved on the second boss 402 of the fixing tool 4, so that the leveling tool 5 is also against the gearbox case 7, and the first boss 504 is sleeved in the through hole set on the gearbox case 7. Since the surface of the gearbox case 7 is not in the same horizontal plane, the gearbox case 7 will be tilted to a certain extent. After that, the reduction motor 602 is controlled to move, and the reduction motor 602 drives the screw 601 to rotate. During the rotation of the screw 601, the adjustment is driven The flat tool 5 moves axially along the guide rod 603, and the position of the gearbox case 7 in the vertical height is adjusted by the leveling tool 5, so that the gearbox case 7 tends to be in a horizontal state, and then the pallet frame 3 is pushed to slide along the support roller 202 of the conveyor frame 2 to the bottom of the press 1, and the pressure head of the press 1 is made to correspond to the bearing mounting part of the gearbox case 7, and then the bearing is placed on the bearing mounting part, and the press 1 is started, and the pressure head of the press 1 moves vertically downward, and the bearing is pressed onto the bearing mounting part of the gearbox case 7, thereby completing the pressing action of the bearing;

[0052] For the gearbox housings 7 of the same batch and the same model, since the dimensions of the housings are within a certain tolerance range, usually the leveling tool 5 only needs to be adjusted once for universal use.

[0053] In summary, the utility model provides a gearbox case bearing press-fitting device, which can conveniently adjust the horizontality of the gearbox case according to the different shapes of the gearbox case, ensure that the bearing is smoothly installed on the gearbox case, and avoid the problem of skewed installation of the shaft seat due to the skew of the gearbox case during press-fitting.

[0054] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. A gearbox case bearing press-fitting device, characterized in that: It includes a press, a conveying frame is provided at the bottom of the press, a pallet frame is movably installed on the conveying frame, at least one fixed tool is provided near the middle of the pallet frame, at least one leveling tool is respectively installed on the pallet frame and on both sides close to the fixed tool, the leveling tool is movably installed on the lifting and adjusting mechanism, the lifting and adjusting mechanism is installed on the pallet frame, the gearbox case is placed on the pallet frame, the bearing mounting part of the gearbox case is sleeved on the fixed tool, and the horizontality of the gearbox case is adjusted by the leveling tool.

2. The gearbox housing bearing press-fitting device according to claim 1, characterized in that: The pallet frame includes a top plate and a bottom plate, a plurality of support plates are arranged between the top plate and the bottom plate, the fixing tool, the leveling tool and the lifting and lowering adjustment mechanism are all installed on the top plate, and the bottom plate is movably arranged on the conveying frame.

3. The gearbox housing bearing press-fitting device according to claim 2, characterized in that: The lifting and lowering adjustment mechanism includes a lead screw, which is rotatably mounted on the top plate, and one end of the lead screw passes through the top plate and is connected to a reduction motor, the reduction motor is mounted on a side of the top plate close to the bottom plate, and the other end of the lead screw is threadedly connected to the leveling fixture; At least two guide rods are also installed on the top plate. The guide rods are symmetrically arranged along the center line of the lead screw, and the guide rods are slidably connected to the leveling tooling.

4. The gearbox housing bearing press-fitting device according to claim 3, characterized in that: The leveling tool comprises a leveling support, the top of the leveling support abuts against the gearbox housing, a threaded hole is provided at the center of the leveling support, and the threaded hole is threadedly connected to the lead screw; The leveling support is also provided with a guide hole corresponding to the guide rod, and the guide hole is slidably matched with the guide rod.

5. The gearbox housing bearing press-fitting device according to claim 4, characterized in that: A first boss is further provided at one end of the leveling support member away from the top plate, and the first boss is sleeved in a through hole provided on the gearbox housing.

6. The gearbox housing bearing press-fitting device according to claim 2, characterized in that: The fixing fixture comprises a fixing support member, which is fixed to the top plate by bolts. A second boss is provided at one end of the fixing support member away from the top plate, and the second boss is sleeved on the bearing mounting portion of the gearbox housing.

7. The gearbox housing bearing press-fitting device according to claim 6, characterized in that: The height of the second boss is smaller than the thickness of the side wall of the gearbox housing at the bearing mounting portion; The circumference of the second boss is provided with a lead-in angle; A groove is provided at the center of the second boss, and a threaded hole for bolting the fixing support member to the top plate is provided in the groove.

8. The gearbox housing bearing press-fitting device according to claim 2, characterized in that: The conveying frame comprises two frames arranged opposite to each other, a plurality of supporting rollers are arranged between the two frames, and the support frame is slidably arranged on the supporting rollers; The two frames are also provided with baffles respectively along the moving direction, and the height dimension of the baffles is greater than the thickness dimension of the bottom plate.

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