Transmission housing clamping device

Abstract

The utility model relates to a transmission clamping device to solve the technical problem that the clamping tools in the prior art are not compatible with the clamping of transmission cases of different models. The utility model provides a transmission case clamping device, comprising a U-shaped bracket consisting of a horizontal bracket and two vertical brackets respectively arranged at the two ends of the top of the horizontal bracket, and stopper fixing blocks are respectively arranged at the two ends of the top of the horizontal bracket at positions close to the two vertical brackets, and the two stopper fixing blocks are arranged in mirror symmetry; the horizontal bracket is also provided with a stopper clamping assembly for cooperating with the stopper fixing block to fix the transmission case; the two vertical brackets are both provided with a suspension limit assembly and a body limit assembly for limiting the circumference of the transmission case; the horizontal bracket is also provided with a plurality of quick-change mounting holes, and quick-change blocks are arranged in the plurality of quick-change mounting holes, and a shell connecting threaded hole for connecting with the transmission case is provided in the middle of the quick-change block.

Description

Technical Field

[0001] The utility model relates to a transmission clamping device, in particular to a transmission housing clamping device. Background Art

[0002] During the assembly process of the transmission, most of the time, the transmission housing needs to be clamped first with the help of suspension holes connected to the frame. For transmission housings without suspension holes, process support holes need to be added for clamping. However, since the transmission has a single-box structure and a main and auxiliary double-box structure, covering multiple types such as single intermediate shaft, double intermediate shaft, and triple intermediate shafts, the outer contours of the transmission housing vary greatly, and transmission housings of different models do not have the same or similar positioning points.

[0003] However, the transmission case clamping mechanisms in the prior art have relatively simple structures and are not compatible with a variety of products, resulting in that during the actual assembly process, assemblers need to use a variety of assembly carts to switch back and forth to adapt to different types of transmission cases, resulting in greater workload and lower work efficiency for assemblers. Utility Model Content

[0004] The utility model aims to solve the technical problem that the clamping tools in the prior art are not compatible with the clamping of transmission cases of different models, and to provide a transmission case clamping device.

[0005] In order to solve the above technical problems, the technical solutions provided by the utility model are as follows:

[0006] A transmission housing clamping device comprises a U-shaped bracket consisting of a horizontal bracket and two vertical brackets respectively arranged at two ends of the top of the horizontal bracket, and the special features thereof are:

[0007] The two ends of the top of the horizontal bracket are respectively provided with stopper fixing blocks at positions close to the two vertical brackets, and the two stopper fixing blocks are arranged in mirror symmetry; the horizontal bracket is also provided with a stopper pressing assembly for cooperating with the stopper fixing blocks to fix the transmission housing;

[0008] Both vertical brackets are provided with a suspension limiting component and a body limiting component for limiting the circumference of the transmission housing;

[0009] The horizontal bracket is also provided with a plurality of quick-change mounting holes, each of which is provided with a quick-change block, which is installed in the quick-change mounting holes of the horizontal bracket through a plurality of tightening bolts; a shell connecting threaded hole for connecting to the transmission shell is provided in the middle of the quick-change block.

[0010] Furthermore, the stopper clamping assembly includes a screw rod fixed to the top of the horizontal bracket, and a clamping nut, a pressure plate and a spring sleeved on the screw rod from top to bottom; the upper and lower ends of the spring are respectively in contact with the pressure plate and the horizontal bracket;

[0011] A pressing plate pad for supporting the pressing plate is also provided on the top of the horizontal support.

[0012] Further, the suspension limit assembly includes an I-shaped support block, and a fixed pressure plate slidably mounted on the top of the I-shaped support block;

[0013] The top of the I-shaped support block is provided with a plurality of equally spaced plunger holes;

[0014] A knob plunger matched with the plunger hole is provided on the top of the fixed pressing plate, and the knob plunger passes through the fixed pressing plate;

[0015] A mounting groove is provided on the top of the I-shaped support block, and a support block is provided in the mounting groove; a clamping screw is provided on the top of the fixed pressing plate, and the bottom end of the clamping screw passes through the fixed pressing plate and abuts against the support block; a first handle is provided on the top of the clamping screw;

[0016] A connecting column is arranged at one end of the supporting block, and a connecting plate is arranged at one end of the connecting column away from the supporting block; threaded holes are arranged at the corners of the connecting plate.

[0017] Furthermore, the shape limiting assembly includes a claw assembly, and a baffle assembly and a tension limiting assembly used in conjunction with the claw assembly;

[0018] The claw assembly comprises a mounting plate fixed to the side of the vertical bracket, a mounting block is provided on the side of the mounting plate, a slide groove is provided on the mounting block, and a claw is slidably installed in the slide groove;

[0019] The end of the gripping claw away from the slide slot is rotatably mounted with a gripping claw head;

[0020] A threaded rod is installed on the mounting block along the sliding direction of the claw, both ends of the threaded rod are rotatably connected to the mounting block, and the threaded rod passes through the claw and is threadedly connected to the claw;

[0021] One end of the threaded rod passes through the mounting block and is mounted with a second handle.

[0022] Further, the baffle assembly includes a movable baffle assembly and a rotating baffle assembly, and the movable baffle assembly and the rotating baffle assembly are respectively installed on two vertical brackets, wherein:

[0023] The movable baffle assembly includes an movable baffle composed of an insertion section and a limiting section; a slot adapted to the insertion section of the movable baffle is provided on the vertical bracket, the insertion section of the movable baffle is inserted into the slot, and the insertion section is slidably matched with the vertical bracket through the slot;

[0024] A baffle is provided at one end of the insertion section away from the limiting section;

[0025] The rotating baffle assembly includes a fixed baffle, which is fixedly mounted on a vertical bracket; a square groove is opened on the side of the fixed baffle, and a rotating clamping plate is rotatably mounted in the square groove of the fixed baffle, and the rotating clamping plate can rotate 0-90 degrees in the square groove.

[0026] Furthermore, the tensioning and limiting assembly includes a plurality of threaded tie rods, and the horizontal bracket is provided with a plurality of movable through-slots, the number of which is the same as the number of the threaded tie rods;

[0027] The threaded pull rod passes through the movable through-slot and a third handle is provided at the bottom end thereof;

[0028] Two threaded blocks are sleeved on the threaded pull rod, and the two threaded blocks are distributed on the upper and lower sides of the horizontal bracket.

[0029] Furthermore, a through groove is provided on the pressing plate, and the pressing plate is sleeved on the screw rod through the through groove.

[0030] Furthermore, the stopper fixing block is provided with a plurality of stopper slots distributed in a stepped manner.

[0031] Furthermore, the diameters of the threaded holes of the connecting plate are different, wherein the diameter of the threaded holes at one diagonal side is 10.5 mm, and the diameter of the threaded holes at the other diagonal side is 12.5 mm.

[0032] Furthermore, a placement groove connected to the slide groove is provided on one side of the mounting block close to the second handle for placing the claw.

[0033] Compared with the prior art, the utility model has the following beneficial effects:

[0034] 1. The transmission case clamping device provided by the utility model can realize four clamping methods for the transmission case by arranging a stop fixing block and a stop clamping assembly, a suspension limit assembly, a body limit assembly and a quick-change block, so that the transmission case clamping device can be compatible with the clamping of transmission cases of different models; moreover, the clamping device is used in conjunction with the RGV trolley, which is suitable for clamping 82 types of transmission cases in 23 transmission series, and the production change time is 1-2 minutes, which can meet the on-site assembly rhythm and ensure that the transmission case can be assembled normally on the line.

[0035] 2. The transmission housing clamping device provided by the utility model retains the degree of freedom of clamping, has a large reserved space, can adapt to subsequent deformed housings through simple quick change, and can freely adjust the clamping size. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a front view of the embodiment of the utility model without the connecting column, connecting plate and supporting block;

[0037] Figure 2 This is a schematic diagram of the three-dimensional structure of the embodiment of the utility model without the connecting column, the connecting plate and the supporting block;

[0038] Figure 3 for Figure 2 Schematic diagram of the three-dimensional structure from another perspective;

[0039] Figure 4 for Figure 1 A top view of

[0040] Figure 5 It is a three-dimensional structural schematic diagram of the suspension limiting assembly in the embodiment of the utility model;

[0041] Figure 6 This is a structural schematic diagram of the movable baffle assembly in the embodiment of the utility model;

[0042] Figure 7 This is a schematic diagram of the three-dimensional structure of the quick-change block in the embodiment of the utility model;

[0043] Description of reference numerals:

[0044] 1-horizontal bracket, 2-vertical bracket, 3-stop fixing block, 31-stop slot, 4-stop clamping assembly, 41-screw, 42-clamping nut, 43-pressure plate, 431-through slot, 44-spring, 45-pressure plate pad, 5-suspension limit assembly, 51-type support block, 52-fixed pressure plate, 53-plunger hole, 54-knob plunger, 55-mounting slot, 56-support block, 57-clamping screw, 58-first handle, 59-connecting column, 510-connecting plate, 511-threaded hole, 6-body limit assembly, 61-claw assembly, 611-mounting plate, 612-mounting block, 6121-placement slot , 613-slideway, 614-claw, 615-claw head, 616-threaded rod, 617-second handle, 62-baffle assembly, 621-movable baffle assembly, 6211-movable baffle, 62111-insertion section, 62112-limiting section, 6212-baffle, 622-rotating baffle assembly, 6221-fixed baffle, 6222-square groove, 6223-rotating clamp, 63-tensioning limit assembly, 631-threaded pull rod, 632-movable through-slideway, 633-third handle, 634-threaded block, 7-quick-change mounting hole, 8-quick-change block, 9-tensioning bolt, 10-shell connection threaded hole. DETAILED DESCRIPTION

[0045] The following will be combined with the accompanying drawings to clearly and completely describe the technical solution 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.

[0046] like Figure 1 , Figure 2 and Figure 3 As shown, a transmission housing clamping device comprises a U-shaped bracket consisting of a horizontal bracket 1 and two vertical brackets 2 respectively arranged at the two ends of the top of the horizontal bracket 1. In order to make the transmission housing clamping device compatible with the clamping of transmission housings of different models, a variety of clamping parts are arranged on the U-shaped bracket, specifically:

[0047] A stop fixing block 3 is provided at both ends of the top of the horizontal bracket 1, respectively, near the positions of the two vertical brackets 2, and the two stop fixing blocks 3 are arranged in a mirror-symmetrical manner; a plurality of stop slots 31 distributed in a stepped manner are opened on the stop fixing block 3; the horizontal bracket 1 is also provided with a stop clamping assembly 4 for cooperating with the stop fixing block 3 to fix the transmission housing; by placing the transmission housing between the two stop fixing blocks 3 arranged in a mirror-symmetrical manner, the stop of the transmission housing cooperates with the stop slot 31 to achieve horizontal limitation of the transmission housing; and then the stop of the transmission housing placed between the two stop fixing blocks 3 is clamped by the stop clamping assembly 4 to achieve clamping of the transmission housing.

[0048] Both vertical brackets 2 are provided with a suspension limit assembly 5 and a body limit assembly 6 for limiting the circumference of the transmission housing; when the clamping device is not suitable for fixing the transmission housing using a stopper, the suspension limit assembly 5 or the body limit assembly 6 can be used to fix and clamp the transmission housing.

[0049] like Figure 7 As shown, the horizontal bracket 1 is also provided with a plurality of quick-change mounting holes 7, each of which is provided with a quick-change block 8, which is installed in the quick-change mounting hole 7 of the horizontal bracket 1 through a plurality of tightening bolts 9; a housing connection threaded hole 10 for connecting with the transmission housing is provided in the middle of the quick-change block 8. When the transmission housing is not suitable for the fixing method of stopper, suspension, or shape limit, the transmission housing can be fixed by connecting the housing connection threaded hole of the quick-change block with bolts.

[0050] like Figure 2 and Figure 3As shown, the stop clamping assembly 4 includes a screw rod 41 fixed to the top of the horizontal bracket 1, and a clamping nut 42, a pressure plate 43 and a spring 44 which are sequentially sleeved on the screw rod 41 from top to bottom; the upper and lower ends of the spring 44 are respectively abutted against the pressure plate 43 and the horizontal bracket 1; a pressure plate pad 45 for supporting the pressure plate 43 is also provided on the top of the horizontal bracket 1.

[0051] In order to prevent the pressure plate 43 from interfering with the transmission housing when other clamping methods are used, a through slot 431 is provided on the pressure plate 43 , and the pressure plate 43 is sleeved on the screw rod 41 through the through slot 431 , so that the pressure plate 43 can be easily moved.

[0052] like Figure 2 and Figure 5 As shown, the suspension limit assembly 5 includes an I-shaped support block 51, and a fixed pressure plate 52 slidably mounted on the top of the I-shaped support block 51; a plurality of equally spaced plunger holes 53 are provided on the top of the I-shaped support block 51; a knob plunger 54 adapted to the plunger hole 53 is provided on the top of the fixed pressure plate 52, and the knob plunger 54 passes through the fixed pressure plate 52;

[0053] A mounting groove 55 is provided on the top of the I-shaped support block 51, and a support block 56 is provided in the mounting groove 55; a clamping screw 57 is provided on the top of the fixed pressing plate 52, and the bottom end of the clamping screw 57 passes through the fixed pressing plate 52 and abuts against the support block 56; a first handle 58 is provided on the top of the clamping screw 57;

[0054] In order to connect with the transmission housing, a connecting column 59 is provided at one end of the support block 56 , and a connecting plate 510 is provided at one end of the connecting column 59 away from the support block 56 ; threaded holes 511 are provided at the corners of the connecting plate 510 .

[0055] In order to enable the connecting plate 510 to be connected to transmission cases of different masses, the diameters of the threaded holes 511 of the connecting plate 510 are different, wherein the diameter of the threaded holes 511 diagonally on one side is 10.5 mm, and the diameter of the threaded holes 511 diagonally on the other side is 12.5 mm. When the mass of the transmission case is large, bolts with larger diameters can be used to connect to the transmission case.

[0056] like Figure 1 As shown, the shape limiting assembly 6 includes a claw assembly 61, and a baffle assembly 62 and a tension limiting assembly 63 used in conjunction with the claw assembly 61.

[0057] like Figure 2 and Figure 3As shown, the claw assembly 61 includes a mounting plate 611 fixed to the side of the vertical bracket 2, a mounting block 612 is provided on the side of the mounting plate 611, a slide groove 613 is provided on the mounting block 612, and a claw 614 is slidably installed in the slide groove 613; a clamping claw head 615 is rotatably installed at the end of the claw 614 away from the slide groove 613, and the distance between the claw 614 and the transmission housing can be adjusted by rotating the clamping claw head 615 on the claw 614, so that the claw 614 can be tightly attached to the transmission housing through the clamping claw head 615;

[0058] In order to drive the claw 614 and make the claw 614 close to the transmission housing, a threaded rod 616 is installed on the mounting block 612 along the sliding direction of the claw 614, and both ends of the threaded rod 616 are rotatably connected to the mounting block 612, and the threaded rod 616 penetrates the claw 614 and is threadedly connected thereto; one end of the threaded rod 616 penetrates the mounting block 612 and is installed with a second handle 617.

[0059] like Figure 2 and Figure 3 As shown, in order to prevent the claw 614 from interfering with the installation of the transmission housing when using other clamping methods, a placement groove 6121 connected to the slide groove 613 is provided on the side of the mounting block 612 close to the second handle 617 for placing the claw 614. After the claw 614 moves to the corresponding position of the placement groove 6121 on the threaded rod 616, the claw 614 is rotated to be placed in the placement groove 6121.

[0060] The baffle assembly 62 includes a movable baffle assembly 621 and a rotating baffle assembly 622, and the movable baffle assembly 621 and the rotating baffle assembly 622 are respectively installed on two vertical brackets 2, wherein:

[0061] like Figure 2 , Figure 3 and Figure 6 As shown, the movable baffle assembly 621 includes a movable baffle 6211 composed of an insertion section 62111 and a limiting section 62112; a slot adapted to the insertion section 62111 of the movable baffle 6211 is provided on the vertical bracket 2, the insertion section 62111 of the movable baffle 6211 is inserted into the slot, and the insertion section 62111 is slidably matched with the vertical bracket 2 through the slot; a baffle 6212 is provided at one end of the insertion section 62111 away from the limiting section 62112;

[0062] like Figure 3As shown, the rotating baffle assembly 622 includes a fixed baffle 6221, which is fixedly mounted on the vertical bracket 2; a square groove 6222 is provided on the side of the fixed baffle 6221, and a rotating clamping plate 6223 is rotatably mounted in the square groove 6222 of the fixed baffle 6221, and the rotating clamping plate 6223 can rotate 0-90 degrees in the square groove 6222. By rotating the rotating clamping plate 6223, the length of the fixed baffle 6221 can be extended to adapt to transmission housings of different shapes and sizes.

[0063] like Figure 4 As shown, the tensioning limit assembly 63 includes a plurality of threaded rods 631, and a plurality of movable through-slots 632 having the same number as the threaded rods 631 are provided on the horizontal bracket 1; the threaded rod 631 penetrates the movable through-slot 632 and a third handle 633 is provided at the bottom end thereof; the position of the threaded rod 631 in the movable through-slot 632 can be adjusted according to the position of the oil plugging hole at the bottom of the transmission housing.

[0064] Two threaded blocks 634 are sleeved on the threaded rod 631, and the two threaded blocks 634 are distributed on the upper and lower sides of the horizontal bracket 1. The two threaded blocks 634 are distributed on the upper and lower sides of the horizontal bracket 1 mainly to prevent the threaded rod 631 from falling off in the movable through-slot 632. At the same time, when the threaded rod 631 is used to tighten the transmission housing, the threaded rod 631 is screwed into the oil plugging hole of the transmission housing, and the transmission housing can be tightened by rotating the threaded block 634 located at the bottom of the horizontal bracket 1.

[0065] In this embodiment, there are four ways to clamp the transmission housing, including:

[0066] The first clamping method is to clamp the transmission housing through the suspension limit assembly 5. The specific clamping method is:

[0067] Install the connecting plate 510 on the suspension hole of the transmission housing through the threaded hole 511;

[0068] Lift the transmission housing to the top of the mounting groove 55 of the I-shaped support block 51, and drop the support block 56 into the mounting groove 55; slide the fixed pressure plate 52 to the top of the support block 56, and insert the knob plunger 54 into the plunger hole 53 on the I-shaped support block 51;

[0069] The pressing screw 57 is rotated by the first handle 58 so that the pressing screw 57 presses the support block 56 in the installation groove 55 to fix the position of the transmission housing.

[0070] The second clamping method is to clamp the transmission housing through the shape limiting component 6. This clamping method uses the shape of the transmission housing to fix the transmission housing. The specific clamping method is:

[0071] Place the transmission housing on the horizontal bracket 1, slide the movable baffle 6211 according to the size of the transmission housing, and insert the movable baffle 6211 into the body of the transmission housing; rotate the rotating clamping plate 6223 to extend or shorten the length of the fixed baffle 6221 to clamp the transmission housing;

[0072] The second handle 617 is rotated to rotate the threaded rod 616. When the threaded rod 616 rotates, the claw 614 is driven to slide in the slide groove 613 of the mounting block 612. The claw 614 cooperates with the rotating clamping plate 6223 and the movable baffle 6211 to achieve circumferential positioning of the transmission housing.

[0073] At the same time, adjust the position of the threaded rod 631 in the movable through-slot 632 so that the threaded rod 631 can be connected to the oil plugging hole of the transmission case. The threaded rod 631 is connected to the oil plugging hole of the transmission case by rotating the third handle 633. The threaded block 634 is rotated so that the threaded rod 631 fixes the transmission case in the up and down directions.

[0074] The third clamping method is to clamp the transmission case by means of the stopper fixing block 3 and the stopper pressing assembly 4. This clamping method uses the stopper of the transmission case to fix the transmission case. The specific clamping method is as follows:

[0075] Insert the transmission housing stopper into the stopper fixing blocks 3 on the horizontal bracket 1 which are mirror-symmetrical, and limit the stopper of the transmission housing in the circumferential direction through the stopper slot 31;

[0076] The pressure plate 43 is rotated around the screw rod 41 to above the stop of the transmission case, and the clamping nut 42 is rotated so that the pressure plate 43 presses the stop of the transmission case to complete the upper and lower direction limitation of the stop of the transmission case.

[0077] The fourth clamping method is to clamp the transmission housing through the quick-change block 8. The specific clamping method is:

[0078] Place the transmission housing on the horizontal bracket 1, use appropriate bolts to connect the threaded holes on the transmission housing with the housing connection threaded holes 10 on the quick-change block 8, tighten the bolts, and complete the clamping of the transmission housing.

[0079] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or replacements within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A transmission housing clamping device, comprising a U-shaped bracket consisting of a horizontal bracket (1) and two vertical brackets (2) respectively arranged at the top ends of the horizontal bracket (1), characterized in that: The top ends of the horizontal bracket (1) are respectively provided with stopper fixing blocks (3) at positions close to the two vertical brackets (2), and the two stopper fixing blocks (3) are arranged in a mirror-symmetrical manner; the horizontal bracket (1) is also provided with a stopper pressing assembly (4) for cooperating with the stopper fixing blocks (3) to fix the transmission housing; The two vertical brackets (2) are both provided with a suspension limiting component (5) and a body limiting component (6) for limiting the circumference of the transmission housing; The horizontal bracket (1) is also provided with a plurality of quick-change mounting holes (7), each of which is provided with a quick-change block (8), which is installed in the quick-change mounting hole (7) of the horizontal bracket (1) via a plurality of tension bolts (9); a housing connection threaded hole (10) for connecting to a transmission housing is provided in the middle of the quick-change block (8).

2. The transmission case clamping device according to claim 1, characterized in that: The stopper clamping assembly (4) comprises a screw rod (41) fixed to the top of the horizontal bracket (1), and a clamping nut (42), a pressure plate (43) and a spring (44) which are sequentially sleeved on the screw rod (41) from top to bottom; the upper and lower ends of the spring (44) are respectively in contact with the pressure plate (43) and the horizontal bracket (1); A pressing plate pad (45) for supporting the pressing plate (43) is also provided on the top of the horizontal support (1).

3. The transmission case clamping device according to claim 1, characterized in that: The suspension limiting assembly (5) comprises an I-shaped support block (51) and a fixed pressing plate (52) slidably mounted on the top of the I-shaped support block (51); The top of the I-shaped support block (51) is provided with a plurality of plunger holes (53) distributed at equal intervals; A knob plunger (54) adapted to the plunger hole (53) is provided on the top of the fixed pressing plate (52), and the knob plunger (54) penetrates the fixed pressing plate (52); A mounting groove (55) is provided on the top of the I-shaped support block (51), and a support block (56) is provided in the mounting groove (55); a clamping screw (57) is provided on the top of the fixed pressure plate (52), and the bottom end of the clamping screw (57) passes through the fixed pressure plate (52) and abuts against the support block (56); a first handle (58) is provided on the top end of the clamping screw (57); A connecting column (59) is provided at one end of the support block (56), and a connecting plate (510) is provided at one end of the connecting column (59) away from the support block (56); threaded holes (511) are provided at the corners of the connecting plate (510).

4. The transmission case clamping device according to claim 1, characterized in that: The shape limiting component (6) comprises a claw component (61), and a baffle component (62) and a tension limiting component (63) used in conjunction with the claw component (61); The claw assembly (61) comprises a mounting plate (611) fixed to the side of the vertical bracket (2); a mounting block (612) is provided on the side of the mounting plate (611); a sliding groove (613) is provided on the mounting block (612); and a claw (614) is slidably installed in the sliding groove (613); The end of the claw (614) away from the slide groove (613) is rotatably mounted with a claw head (615); A threaded rod (616) is installed on the mounting block (612) along the sliding direction of the claw (614), and both ends of the threaded rod (616) are rotatably connected to the mounting block (612), and the threaded rod (616) passes through the claw (614) and is threadedly connected thereto; One end of the threaded rod (616) passes through the mounting block (612) and is mounted with a second handle (617).

5. The transmission case clamping device according to claim 4, characterized in that: The baffle assembly (62) comprises a movable baffle assembly (621) and a rotating baffle assembly (622), wherein the movable baffle assembly (621) and the rotating baffle assembly (622) are respectively mounted on two vertical brackets (2), wherein: The movable baffle assembly (621) comprises a movable baffle (6211) composed of an insertion section (62111) and a limiting section (62112); a slot adapted to the insertion section (62111) of the movable baffle (6211) is provided on the vertical bracket (2); the insertion section (62111) of the movable baffle (6211) is inserted into the slot, and the insertion section (62111) is slidably matched with the vertical bracket (2) through the slot; A baffle (6212) is provided at one end of the insertion section (62111) away from the limiting section (62112); The rotating baffle assembly (622) comprises a fixed baffle (6221), which is fixedly mounted on the vertical bracket (2); a square groove (6222) is provided on the side of the fixed baffle (6221), and a rotating clamping plate (6223) is rotatably mounted in the square groove (6222) of the fixed baffle (6221), and the rotating clamping plate (6223) can rotate 0-90 degrees in the square groove (6222).

6. The transmission case clamping device according to claim 4, characterized in that: The tensioning and limiting assembly (63) comprises a plurality of threaded tie rods (631), and the horizontal support (1) is provided with a plurality of movable through-going slide grooves (632) the same number as the threaded tie rods (631); The threaded pull rod (631) passes through the movable through-slot (632) and a third handle (633) is provided at the bottom end thereof; Two threaded blocks (634) are sleeved on the threaded pull rod (631), and the two threaded blocks (634) are distributed on the upper and lower sides of the horizontal support (1).

7. The transmission case clamping device according to claim 2, characterized in that: The pressing plate (43) is provided with a through groove (431), and the pressing plate (43) is sleeved on the screw rod (41) through the through groove (431).

8. The transmission case clamping device according to claim 1, characterized in that: The stopper fixing block (3) is provided with a plurality of stopper clamping grooves (31) distributed in a stepped manner.

9. The transmission case clamping device according to claim 3, characterized in that: The threaded holes (511) of the connecting plate (510) have different diameters, wherein the threaded holes (511) at one diagonal side have a diameter of 10.5 mm, and the threaded holes (511) at the other diagonal side have a diameter of 12.5 mm.

10. The transmission case clamping device according to claim 4, characterized in that: A placement groove (6121) communicating with the slide groove (613) is provided on one side of the mounting block (612) close to the second handle (617) and is used for placing the claw (614).

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