Horizontal machining hydraulic clamp for conveniently assembling and disassembling flywheel shells in batches

Abstract

The utility model relates to a horizontal hydraulic clamp for conveniently assembling and disassembling flywheel housings in batches. The horizontal hydraulic clamp comprises a bottom plate, a vertical plate is arranged on the bottom plate; a back plate is arranged on one side of the vertical plate; two large angle plates are symmetrically arranged between the back plate and the vertical plate; a manual lever unloading component is arranged on the side surface of the vertical plate; a sequence valve is arranged on the side of the vertical plate; an energy accumulator is arranged on the side surface of the vertical plate and on the outer side of one large angle plate; thick guide columns are arranged in the middles of the other sides of the vertical plates; thick limiting rods are symmetrically arranged at the lower positions of the side surfaces of the vertical plates; supporting cylinders are arranged on the side surfaces of the vertical plates and below the thick guide columns; the telescopic end of the support cylinder is provided with a jack; three pressing assemblies are arranged on the side face of the vertical plate. A pressure gauge is arranged at one corner of the side surface of the vertical plate; a connecting valve is arranged at one corner of the side surface of the vertical plate; an upper quick-change connector and a lower quick-change connector are arranged on the side face of the connecting valve. The flywheel casing machining device can finish machining of flywheel casing products in three directions at a time, and is convenient, rapid, stable and reliable to assemble and disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing fixtures, in particular to a horizontal hydraulic fixture which is convenient for loading and unloading batch flywheel shells. Background Art

[0002] At present, there are many kinds of flywheel housing parts on heavy truck engines. Not only are the batches increasing, but the product requirements are also becoming more and more stringent. In particular, for medium and large flywheel housing products with shape and position tolerance requirements for the machining surfaces and holes on the stopper side and the circumferential side, the existing multi-process processing has a large cumulative deviation due to repeated positioning, which cannot meet the strict requirements of the product. In addition, there are many auxiliary working hours for loading and unloading, turnover, etc., and it is easy to have defects such as bumps and scratches, which is not suitable for mass production. The above are all problems that need to be solved urgently. Utility Model Content

[0003] The utility model mainly solves the technical problems of inconvenience in loading and unloading during processing in the prior art, and proposes a horizontal hydraulic clamp for convenient loading and unloading of batch flywheel shells. The method of merging processes is adopted. The clamp is used on a horizontal machining center, and the flywheel shell product is clamped vertically in the clamp. The stop side and the circumferential side with tangible position tolerance requirements are set on the same rotary axis. Through the rotation of the worktable of the horizontal machining center, the processing of the surface and hole with tangible position tolerance requirements is completed in one process. However, since the flywheel shell product is relatively large and heavy, it is somewhat difficult to load and unload vertically. For this reason, the clamp is designed with a coarse limit rod, a coarse guide column and a manual lever unloading assembly, so that the loading and unloading of the flywheel shell product becomes easy and convenient. In addition, the clamp adopts a pressure-maintaining hydraulic clamp, and the clamping and loosening of the flywheel shell product are hydraulically automatically executed, so that the auxiliary working hours for loading and unloading the product are very small, and the larger the production batch, the more obvious the advantage. In summary, such a clamp scheme can be applied to most horizontal machining centers, can be widely used, and can fundamentally solve the above-mentioned problems.

[0004] The utility model discloses a horizontal hydraulic clamp which is convenient for loading and unloading flywheel shells in batches. The clamp mainly comprises a multifunctional bending plate, symmetrically arranged coarse limit rods and a central coarse guide column, a convenient manual lever unloading component, a multi-point surface positioning block, a positioning pin with a copper guide head, a high-quality angle clamping cylinder, a supporting cylinder, a sequence valve, an accumulator, a pressure gauge, etc. The clamp is directly installed on a horizontal machining center for use, and rationally uses each hydraulic cylinder to realize processing of flywheel shell products in three directions at one time. The loading and unloading is convenient, fast, stable and reliable, and the clamp is a very preferred solution.

[0005] This fixture is realized as follows: the bending plate assembly is mainly composed of a vertical plate, a back plate and a large angle plate. The large angle plate is welded to the back plate, and other parts are connected by hexagon socket screws and cylindrical pins. In this way, it has sufficient rigidity to carry more fixture parts. In addition, the oil circuit required by each hydraulic cylinder must be set inside the vertical plate. Therefore, the bending plate is the main component of this fixture.

[0006] For the coarse guiding function, two coarse limit rods of the same size are symmetrically arranged at the bottom of the clamp, a stable coarse limit rod support seat is arranged under the coarse limit rod, and a large coarse guide column is arranged in the middle part. The matching clearance between it and the center hole of the flywheel housing is 0.2 to 0.4mm. This clearance value enables the product to be easily inserted into the coarse guide column and can also achieve a relatively precise centering effect.

[0007] The locating pin with a copper guide head has its locating hole first contact with the copper guide head on the locating pin during the process of loading the flywheel housing product into the fixture, which effectively protects the flywheel housing product. After that, the product can smoothly and accurately position itself with the locating pin along the chamfers on the guide head and the locating pin.

[0008] Convenient manual lever unloading assembly. When the flywheel housing product is loaded into the fixture, it is difficult to remove the product from the locating pin by hands alone because of the small gap between it and the locating pin and the heavy weight of the product. Therefore, a convenient manual unloading assembly is designed. Through the principle of lever, the flywheel housing product can be separated from the locating pin with very little force. The support shaft of the lever is set in the middle and upper part of the bent plate. The lever can rotate around the support shaft. The push plate of the lever is set in the center of the vertical plate. The long hole at the end of the lever transmits the thrust by contacting the pin on the push plate. The same size of the top column is set at both ends of the push plate. The top column passes through the vertical plate and can directly contact the inner cavity blank surface of the flywheel housing at the symmetrical position on both sides of the rough guide column. Push the handle forward, and the two top columns will return to the top at the same time to contact the flywheel housing, and then push the flywheel housing out of the locating pin and be in a free and loose state. Pull back the handle, and the two top columns will move forward to the initial position without affecting the re-loading of the flywheel housing product. The entire unloading process is completed instantly, which is convenient and reliable.

[0009] The fast clamping function evenly arranges three Pascal brand corner clamping cylinders. The height of the corner clamping cylinder is increased by the corner clamping cylinder support seat, and it has sufficient rigidity to make the clamping powerful. In addition, a copper pressure head is set at the head of the pressure plate to protect the product. The use of the corner clamping cylinder realizes fast clamping and loosening, greatly improving efficiency.

[0010] Support function, surface positioning blocks are set on the opposite side of each pressure plate, and surface positioning blocks are also set at the parts prone to vibration. Through the use of sequence valves and support cylinders, the surface of the flywheel housing product blank is supported, making the processing process more stable.

[0011] The utility model provides a horizontal hydraulic clamp for convenient loading and unloading of batch flywheel housings, comprising: a bottom plate;

[0012] A vertical plate is arranged on the bottom plate; a back plate is arranged on one side of the vertical plate; two large angle plates are symmetrically arranged between the back plate and the vertical plate; a manual lever unloading assembly is arranged on the side of the vertical plate and between the two large angle plates;

[0013] A coarse guide column is arranged in the middle of the other side of the vertical plate; coarse limit rods are symmetrically arranged at the lower position of the side of the vertical plate; support cylinders are arranged on the side of the vertical plate and under the coarse guide column; a top head is arranged at the telescopic end of the support cylinder; three sets of clamping components are arranged on the side of the vertical plate;

[0014] A pressure gauge and a connecting valve are respectively arranged at the upper and lower positions of the side surface of the vertical plate; an upper quick-change joint and a lower quick-change joint are arranged on the side surface of the connecting valve.

[0015] Furthermore, the manual lever unloading assembly comprises: a lever, a handle, a top column and a push plate;

[0016] The lever is arranged between two large angle plates on the side of the vertical plate through a supporting shaft; a push plate is movably arranged at the lower end of the lever; top columns are passed through both ends of the push plate; the ends of the top columns can pass through the vertical plate and contact the rough surface of the flywheel housing;

[0017] A handle is arranged on the upper end of the lever.

[0018] Furthermore, an anti-slip layer is provided on the surface of the handle.

[0019] Furthermore, three groups of clamping assemblies are respectively located around the coarse guide column; one group of clamping assemblies is located at the upper end of the side of the vertical plate; and the other two groups of clamping assemblies are symmetrically arranged in the middle and lower part of the vertical plate.

[0020] Furthermore, the clamping assembly includes: a corner clamping cylinder and a pressure plate; the corner clamping cylinder is arranged on the side of the vertical plate; and the pressure plate is arranged at the telescopic end of the corner clamping cylinder.

[0021] Furthermore, a copper pressure head is provided at the end of the pressure plate.

[0022] Furthermore, two positioning pin assemblies are symmetrically arranged on the side of the vertical plate and the circumference of the coarse guide column; the two positioning pin assemblies are respectively located on the outside of the top column; the positioning pin assembly includes: a positioning pin base, a positioning pin and a copper guide head; the positioning pin is arranged in the middle of the positioning pin base; and a copper guide head is arranged at the end of the positioning pin.

[0023] Furthermore, a coarse limiting rod support seat is symmetrically arranged on the bottom plate; and the upper end of the coarse limiting rod support seat is in contact with the coarse limiting rod.

[0024] Furthermore, five surface positioning blocks are arranged on the side surface of the vertical plate and along the circumference of the rough guide column.

[0025] Furthermore, a sequence valve is arranged on the side of the vertical plate and the lower end of the manual lever unloading assembly; an accumulator is arranged on the side of the vertical plate and the outer side of one of the large angle plates.

[0026] Compared with the prior art, the utility model provides a horizontal hydraulic clamp for convenient loading and unloading of batch flywheel housings, which has the following advantages:

[0027] 1. The utility model clamp is provided with a manual lever unloading assembly. Through the lever principle, the flywheel housing product can be separated from the positioning pin with very little force. The whole unloading process is simple and convenient to complete. It is convenient and reliable, reducing the complexity of the traditional loading and unloading process and the problems of easy bumps and scratches.

[0028] 2. The base plate of the fixture of the utility model is arranged on the workbench of the horizontal machining center, and the flywheel housing product is vertically clamped in the fixture. The stop side and the circumferential side with the tangible position tolerance requirement are arranged on the same rotary axis. The fixture is driven to rotate by the rotation of the workbench of the horizontal machining center, thereby completing the processing of the surfaces and holes with the tangible position tolerance requirements in one process, which is convenient and fast, and the product has high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of the hydraulic clamp of the utility model;

[0030] Figure 2 This is a rear view of the hydraulic clamp of the utility model;

[0031] Figure 3 This is a bottom view of the hydraulic clamp of the utility model;

[0032] Figure 4 It is an overall schematic diagram of the utility model hydraulic clamp being installed into the flywheel housing product;

[0033] Figure 5 This is the front view of the flywheel housing product of the utility model;

[0034] Figure 6 This is a rear view of the flywheel housing product of the utility model;

[0035] : Illustrations: 1. workbench; 2. fixture base plate assembly; 3. positioning plate; 4. T-block; 5. mounting hole; 6. large bottom surface; 7. ear; 8. center hole; 9. coarse limit rod support seat; 10. coarse guide column; 11. boss; 12. coarse limit rod; 13. positioning hole; 14. positioning pin assembly; 15. copper guide head; 16. positioning pin; 17. support cylinder; 18. top head; 19. surface positioning block; 20. positioning surface; 21. connecting valve; 22. lower side quick change connector; 23. upper side quick change connector; 24. clamping assembly; 25. angle clamping cylinder; 26. pressure plate; 27. sequence valve; 28. pressure gauge; 29. ​​bending plate assembly; 30. accumulator; 31. manual lever unloading assembly; 32. handle; 33. top column. DETAILED DESCRIPTION

[0036] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the sake of ease of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of the contents.

[0037] like Figure 1-6 As shown, the embodiment of the utility model provides a horizontal hydraulic clamp for convenient batch flywheel housing loading and unloading, comprising: a bottom plate 2; a plurality of mounting holes 5 are arranged around the bottom plate 2; the mounting holes 5 can correspond to the positions of the T-slots on the workbench 1;

[0038] The bottom plate 2 is provided with a bent plate assembly 29, which includes a vertical plate; the vertical plate is provided on the bottom plate 2; the included angle between the vertical plate and the bottom plate 2 is 70° to 110°; the included angle in this embodiment is 90° 。 A back plate is arranged on one side of the vertical plate; two large angle plates are symmetrically arranged between the back plate and the vertical plate; a manual lever unloading assembly 31 is arranged on the side of the vertical plate and between the two large angle plates; the manual lever unloading assembly 31 comprises: a lever, a handle 32, a top column 33 and a push plate; the lever is arranged between the two large angle plates on the side of the vertical plate through a support shaft; the support shaft is located in the middle and upper part of the side of the vertical plate; a push plate is movably arranged at the lower end of the lever; the push plate is arranged at the end of the lever through a fixed seat; top columns 33 are passed through both ends of the push plate; the end of the top column can pass through the vertical plate and contact with the blank surface of the flywheel housing; a handle 32 is arranged on the upper end of the lever. An anti-slip layer is arranged on the surface of the handle 32. A sequence valve 27 is arranged on the side of the vertical plate and at the lower end of the manual lever unloading assembly 31; an accumulator 30 is arranged on the side of the vertical plate and on the outer side of one of the large angle plates;

[0039] A coarse guide column 10 is arranged in the middle of the other side of the vertical plate; a coarse limit rod 12 is symmetrically arranged at the lower position of the side of the vertical plate; a support cylinder 17 is arranged on the side of the vertical plate and the lower side of the coarse guide column 10; a head 18 is arranged at the telescopic end of the support cylinder 17; three groups of clamping components 24 are arranged on the side of the vertical plate; the three groups of clamping components are respectively located in the circumference of the coarse guide column 10; one group of clamping components is located at the upper end of the side of the vertical plate; the other two groups of clamping components are symmetrically arranged in the middle and lower part of the vertical plate; the clamping components include: an angle clamping cylinder 25 and a pressure plate 26; the angle clamping cylinder 25 is arranged on the side of the vertical plate through the angle clamping cylinder support seat; the pressure plate is arranged at the telescopic end of the angle clamping cylinder 25; a copper pressure head is arranged at the end of the pressure plate 26. A pressure gauge 28 is arranged at a corner of the upper end of the side of the vertical plate; a connecting valve 21 is arranged at a corner of the lower end of the side of the vertical plate; an upper quick-change joint 23 and a lower quick-change joint 22 are arranged on the side of the connecting valve 21.

[0040] Two positioning pin assemblies 14 are symmetrically arranged on the side of the vertical plate and the coarse guide column 10; the two positioning pin assemblies are respectively located on the outside of the top column 33; the positioning pin assembly 14 includes: a positioning pin base, a positioning pin 16 and a copper guide head 15; the positioning pin 16 is arranged in the middle of the positioning pin base; the copper guide head 15 is arranged at the end of the positioning pin 16. A coarse limit rod support seat 9 is symmetrically arranged on the bottom plate 2; the upper end of the coarse limit rod support seat 9 is in contact with the coarse limit rod 12, thereby supporting the coarse limit rod 12. Five surface positioning blocks 19 are arranged on the side of the vertical plate and along the circumference of the coarse guide column 10, and the positioning surface 20 of the surface positioning block 19 can contact the large bottom surface 6 of the flywheel housing product; three of the surface positioning blocks 19 are respectively located at the front end of the clamping assembly; the fourth surface positioning block 19 is located on the upper right side of the vertical plate; and the last surface positioning block 19 is located in the middle of the upper left part of the vertical plate.

[0041] The working process of the utility model is as follows: first, the hydraulic clamp is hoisted onto the workbench 1 of the horizontal machining center, the two reference edges of the clamp base plate 2 are pressed against the two positioning plates 3 on the workbench 1, and the hexagon socket screws are tightened, then the T-block 4 is inserted into the T-slot of the workbench 1, corresponding to the bottom of the mounting hole 5 on the clamp base plate 2, and the hexagon socket screws are tightened, and the positioning and clamping of the hydraulic clamp on the horizontal machining center are completed.

[0042] Place the processed large bottom surface 6 of the flywheel housing product toward the hydraulic clamp, with the ear 7 facing the upper right side, and lift it toward the clamp, align the center hole 8 of the flywheel housing product with the coarse guide column 10, and slowly slide it in. At the same time, pay attention to the two bosses 11 on the lower left and lower right sides of the flywheel housing product corresponding to the two coarse limit rods 12 respectively, continue to move the product, and pay attention to the two positioning holes 13 of the flywheel housing product that can be inserted into the two copper guide heads 15 in the positioning pin assembly 14, until the two positioning holes 13 of the product are positioned with the two positioning pins 16. The large bottom surface 6 will first contact the top head 18 on the support cylinder 17, and then continue to move while pressing the top head 18 until it fits with the positioning surfaces 20 in the surface positioning assembly 19. At this time, the top head 18 will support the large bottom surface 6 under the action of the support cylinder 17 to play a supporting role.

[0043] Then, insert the oil outlet pipe of the hydraulic station into the quick-change joint 22 on the lower side of the connecting valve 21, and insert the oil return pipe into the quick-change joint 23 on the upper side of the connecting valve 21. Press the pressure switch of the hydraulic station to start pressurizing. The pressing plates 26 on the corner clamping cylinders 25 in the clamping assembly 24 begin to fall and rotate 90°, thus clamping the flywheel housing product. Then, the sequence valve 27 opens the oil circuit of the support cylinder 17. Under the action of the hydraulic oil, the support rod 17 starts to move, locking the top head 18 to prevent it from loosening during processing, thus providing a good support for the flywheel housing product.

[0044] Then observe the pressure gauge 28. When the pointer is stable and the pressure value is between 5.4 and 5.6 MPa, the oil pressure is considered qualified. Finally, pull out the oil pipe of the hydraulic station. Due to the pressure-maintaining capacity of the connecting valve 21 and the ability of the accumulator 30 on the bent plate assembly 29 to balance the oil pressure, the oil pressure in the oil circuit of the fixture can be guaranteed to be reliable and stable even if the oil pipe of the hydraulic station is pulled out. At this point, the clamping of the flywheel housing product is completed and the product can be debugged.

[0045] When the flywheel housing product is processed, first blow off the chips and cutting fluid residues on the fixture, then insert the oil outlet pipe of the hydraulic station into the quick-change joint 23 on the upper side of the connecting valve 21, and insert the return oil pipe into the quick-change joint 22 on the lower side. Press the pressure switch of the hydraulic station to start pressure relief. All the pressure plates 26 begin to rise and rotate 90° and return to the initial position, which not only releases the flywheel housing product, but also leaves enough gap with the product to facilitate the subsequent removal of the flywheel housing product. The support cylinder 17 releases the top head 18 to make it free. Then pull out the oil pipe of the hydraulic station.

[0046] Push the handle 32 on the manual lever unloading assembly 31 forward. At this time, the lower end of the lever drives the push plate to move toward the side of the vertical plate, thereby driving the two top columns to move toward the workpiece. The two top columns 33 return to the top at the same time, and the flywheel housing product is ejected to a free and loose state. Then pull the handle 32 back. At this time, the lower end of the lever drives the push plate to move away from the side of the vertical plate, thereby driving the two top columns to move away from the workpiece, and the two top columns 33 are in the initial position. Then slowly take out the flywheel housing product. Repeat the above steps when installing the product again.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that modifying the technical solutions recorded in the aforementioned embodiments, or replacing part or all of the technical features therein by equivalents, does not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A horizontal hydraulic clamp for convenient loading and unloading of flywheel housings in batches, characterized in that: include: Bottom plate (2); A vertical plate is arranged on the bottom plate (2); a back plate is arranged on one side of the vertical plate; Two large angle plates are symmetrically arranged between the back plate and the vertical plate; a manual lever unloading assembly (31) is arranged on the side of the vertical plate and between the two large angle plates; A coarse guide column (10) is arranged in the middle of the other side of the vertical plate; a coarse limit rod (12) is symmetrically arranged at the lower position of the side of the vertical plate; a support cylinder (17) is arranged on the side of the vertical plate and the lower side of the coarse guide column (10); a top head (18) is arranged at the telescopic end of the support cylinder (17); and three groups of clamping components (24) are arranged on the side of the vertical plate; A pressure gauge (28) and a connecting valve (21) are respectively arranged at the upper and lower positions of the side of the vertical plate; an upper quick-change joint (23) and a lower quick-change joint (22) are arranged on the side of the connecting valve (21).

2. The horizontal hydraulic clamp for convenient loading and unloading of flywheel housings in batches according to claim 1 is characterized in that: The manual lever unloading assembly (31) comprises: a lever, a handle (32), a top column (33) and a push plate; The lever is arranged between two large angle plates on the side of the vertical plate through a supporting shaft; a push plate is movably arranged at the lower end of the lever; top columns (33) are passed through both ends of the push plate; the end of the top column can pass through the vertical plate and contact the rough surface of the flywheel housing; A handle (32) is provided at the upper end of the lever.

3. The horizontal hydraulic clamp for convenient loading and unloading of flywheel housings in batches according to claim 2 is characterized in that: An anti-slip layer is provided on the surface of the handle (32).

4. The horizontal hydraulic clamp for convenient loading and unloading of flywheel housings in batches according to claim 1 is characterized in that: Three groups of clamping assemblies are respectively located in the circumferential direction of the coarse guide column (10); one group of clamping assemblies is located at the upper end of the side surface of the vertical plate; and the other two groups of clamping assemblies are symmetrically arranged in the middle and lower part of the vertical plate.

5. The horizontal hydraulic clamp for convenient loading and unloading of flywheel housings in batches according to claim 4 is characterized in that: The clamping assembly comprises: a corner clamping cylinder (25) and a pressing plate (26); the corner clamping cylinder (25) is arranged on the side of the vertical plate; and the pressing plate is arranged at the telescopic end of the corner clamping cylinder (25).

6. The horizontal hydraulic clamp for convenient loading and unloading of flywheel housings in batches according to claim 5 is characterized in that: A copper pressure head is arranged at the end of the pressure plate (26).

7. The horizontal hydraulic clamp for convenient loading and unloading of flywheel housings in batches according to claim 1 is characterized in that: Two positioning pin assemblies (14) are symmetrically arranged on the side of the vertical plate and the rough guide column (10); the two positioning pin assemblies are respectively located outside the top column (33); the positioning pin assembly (14) comprises: a positioning pin base, a positioning pin (16) and a copper guide head (15); the positioning pin (16) is arranged in the middle of the positioning pin base; and the copper guide head (15) is arranged at the end of the positioning pin (16).

8. The horizontal hydraulic clamp for convenient loading and unloading of flywheel housings in batches according to claim 1 is characterized in that: A coarse limiting rod support seat (9) is symmetrically arranged on the bottom plate (2); the upper end of the coarse limiting rod support seat (9) is in contact with the coarse limiting rod (12).

9. The horizontal hydraulic clamp for convenient loading and unloading of flywheel housings in batches according to claim 5 is characterized in that: Five surface positioning blocks (19) are arranged on the side surface of the vertical plate and along the circumference of the rough guide column (10).

10. The horizontal hydraulic clamp for convenient loading and unloading of flywheel housings in batches according to claim 1 is characterized in that: A sequence valve (27) is arranged on the side of the vertical plate and at the lower end of the manual lever unloading assembly (31); and an accumulator (30) is arranged on the side of the vertical plate and at the outer side of one of the large angle plates.

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