Rapid clamping device for engine crankshaft machining

Abstract

The utility model relates to the technical field of engine crankshafts, and discloses a quick clamping device for machining an engine crankshaft, which is characterized in that a clamping mechanism is arranged on a base and a crankshaft rod, and a rotating mechanism is arranged on the clamping mechanism; the clamping mechanism comprises a moving assembly and a stabilizing assembly, the moving assembly comprises a T-shaped groove, the top of a worm is in meshed connection with a worm gear, a two-way threaded rod is fixedly connected to the axis of the worm gear, and moving plates are in threaded connection with the surfaces of the front side and the rear side of the two-way threaded rod. According to the rapid clamping device for engine crankshaft machining, when a movable plate moves, a mounting base can be driven, a clamping ring can finally clamp and fix a crankshaft rod, and when the surface of the engine crankshaft is machined in the later period, the position of the engine crankshaft cannot shake; the inclined plate, the mounting base and the movable plate can be utilized to form a triangular stable relation, so that breakage caused by stress of supporting parts on the two sides when the engine crankshaft is machined is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine crankshaft, concretely is a kind of quick clamping device of engine crankshaft processing. BACKGROUND

[0002] Crankshaft is indispensable key component in internal combustion engine, is praised as the backbone of engine. Its main function is to change the gas pressure transmitted by piston connecting rod group into torque, and then drive other accessories on engine to work. When engine crankshaft is processed, clamping device is needed to limit crankshaft, to facilitate polishing operation.

[0003] According to the quick clamping device of engine crankshaft processing of announcement number CN219521744U, the utility model relates to the technical field of engine crankshaft processing, including crankshaft and base, crankshaft is set on the top of base, crankshaft includes the drive shaft sleeve of end portion and rotating rod, the top surface of base is equipped with the support seat two for assisting the support of crankshaft and support seat one, the end surface of drive shaft sleeve is equipped with locking hole.

[0004] For the above description, the applicant believes that the following problems exist:

[0005] In use, the left and right sides of the crankshaft are supported by the left and right support seats in the device, and the crankshaft is limited by the right clamping block, but this structure, when in use, because the bottom of the crankshaft is suspended, when polishing the upper side of the crankshaft, the load on the two sides and the suspended part of the crankshaft increases, which can easily damage the left and right support seats and affect the normal processing of the crankshaft. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of quick clamping device of engine crankshaft processing to solve the problems raised in the above background.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of quick clamping device of engine crankshaft processing, including base and engine crankshaft, the left and right sides of the engine crankshaft are fixedly connected with crankshaft rod, the base and crankshaft rod are provided with clamping mechanism, the rotating mechanism is provided on the clamping mechanism;

[0008] The clamping mechanism includes moving assembly and stable component, and the stable component is arranged on the moving assembly.

[0009] The moving assembly comprises T-shaped grooves, which are arranged on the left and right sides of the top of the base, a double-shaft motor is fixedly connected to the center of the top of the base, a worm is fixedly connected to the left and right ends of the double-shaft motor, a worm wheel is meshingly connected to the top of the worm, a bidirectional threaded rod is fixedly connected to the shaft center of the worm wheel, moving plates are threadedly connected to the front and rear surfaces of the bidirectional threaded rod, T-shaped blocks are fixedly connected to the bottom of the moving plates, mounting seats are fixedly connected to the inner sides of the front and rear moving plates, T-shaped annular sliding grooves are arranged in the inner sides of the mounting seats, T-shaped annular sliding plates are slidingly connected to the inside of the T-shaped annular sliding grooves, clamping rings are fixedly connected to the side of the T-shaped annular sliding plates close to the crankshaft rods, and the clamping rings are arranged on the surfaces of the crankshaft rods.

[0010] Preferably, the number of the worms is two, the worms are rotationally connected to the inside of the limiting seats, and the thread specifications of the surfaces of the two worms are consistent and the directions are the same.

[0011] Preferably, the number of the bidirectional threaded rods is two, the bidirectional threaded rods are rotationally connected to the inside of the limiting plates, and the thread specifications of the surfaces of the two bidirectional threaded rods are consistent and the directions are opposite.

[0012] Preferably, the number of the T-shaped blocks is four and two T-shaped blocks form a group, the surfaces of the T-shaped blocks are slidingly connected to the inside of the T-shaped grooves, the two moving plates move to the opposite sides of the surfaces of the bidirectional threaded rods, the installation seats are driven to move when the moving plates move, the clamping rings can finally clamp and fix the crankshaft rods, and the engine crankshafts will not shake in position when the engine crankshaft surfaces are machined later.

[0013] Preferably, the stable assembly comprises a fixing rod, the fixing rod is fixedly connected to the inside of the mounting seat, a rotating plate is rotationally connected to the lower surface of the fixing rod, an inclined plate is fixedly connected to the bottom of the rotating plate, a long block is fixedly connected to the other side of the inclined plate, long grooves are arranged on the outer sides of the moving plates, and bolts are threadedly connected to the inside of the moving plates and the long block.

[0014] Preferably, the front and rear sides and the outer sides of the long grooves on the left and right sides are all arranged as openings, the surface of the long block is inserted into the inside of the long groove, the long block is inserted into the long groove, a triangular stable relationship is formed among the inclined plate, the mounting seat and the moving plate, and the breakage of the two supporting parts caused by stress during the machining of the engine crankshaft is avoided.

[0015] Preferably, the rotating mechanism comprises support plates fixedly connected to the center of the left and right sides of the base, rotating rods rotatably connected inside the support plates, handles fixedly connected to the outer sides of the left and right rotating rods, insertion hole grooves formed around the surfaces of the handles, limit blocks fixedly connected to the lower ends of the outer sides of the left and right support plates, electric push rods fixedly connected to the top of the limit blocks, insertion rods fixedly connected to the top of the electric push rods, the surfaces of the insertion rods and the interiors of the insertion hole grooves being insertedly connected, an insertion groove formed on the temple of the side of the clamping ring close to the support plate, and connecting sleeves fixedly connected to the inner sides of the left and right rotating rods, the surfaces of the connecting sleeves being fixedly connected with telescopic insertion plates around.

[0016] Preferably, the side of the insertion groove close to the support plate is provided as an opening, the surfaces of the telescopic insertion plates and the interiors of the support plates are insertedly connected, the telescopic insertion plates are insertedly connected in the insertion groove, the rotating rods drive the connecting sleeves to rotate, and the rotation of the connecting sleeves can make the clamping ring rotate, thereby facilitating the machining of different surfaces of the engine crankshaft.

[0017] Preferably, the connecting sleeves are sleeved on the surface of the crankshaft rod, and the connecting sleeves are arranged between the clamping ring and the support plate.

[0018] Preferably, a through long groove is formed in the front of the connecting sleeve, and the surface of the crankshaft rod is insertedly connected in the through long groove formed in the front of the connecting sleeve.

[0019] Compared with the prior art, the quick clamping device for engine crankshaft machining has the following beneficial effects:

[0020] 1. The quick clamping device for engine crankshaft machining, through the clamping mechanism, when the worm gear rotates, the bidirectional threaded rod is driven to rotate, at this time, the front and rear moving plates move to the opposite side on the surface of the bidirectional threaded rod, when the moving plates move, the mounting seat is driven, so that the clamping ring clamps and fixes the crankshaft rod, and when the surface of the engine crankshaft is machined later, the engine crankshaft will not shake in position, the rotating plate is rotated at the bottom of the fixed rod, the inclined plate is driven by the rotating plate, the long block is inserted in the long groove, the long block and the moving plate are threadedly fixed by the bolts, the inclined plate, the mounting seat and the moving plate present a triangular stable relationship, and the fracture of the two side supports caused by stress during the machining of the engine crankshaft is avoided.

[0021] 2. The quick clamping device for processing the engine crankshaft uses a rotating mechanism to stretch and insert the telescopic plug plate into the slot. When the handle is turned, the rotating rod is driven to rotate, and the rotating rod drives the connecting sleeve to rotate. When the connecting sleeve rotates, the clamping ring can be rotated, and the clamping ring can drive the T-shaped annular slide to slide in the T-shaped annular groove, which is convenient for rotating the clamped engine crankshaft and processing different surfaces of the engine crankshaft. When the electric push rod is running, it drives the plug rod to be inserted into the socket slot, and the position of the turned engine crankshaft can be fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0023] Figure 1 This is a three-dimensional diagram of the overall structure of the utility model;

[0024] Figure 2 is a structural diagram of the mobile component;

[0025] Figure 3 for Figure 2 A in the middle is an enlarged structural diagram;

[0026] Figure 4 A schematic diagram of the structure of the stable component;

[0027] Figure 5 for Figure 4 The enlarged structural diagram at B in the middle;

[0028] Figure 6 It is a partial structural diagram of the rotating mechanism;

[0029] Figure 7 It is a structural diagram of the rotating mechanism;

[0030] Figure 8 for Figure 7 Schematic diagram of the structure of the intercepted part.

[0031] In the figure: 1, base; 2, engine crankshaft; 21, crankshaft rod; 3, rotating mechanism; 31, slot; 32, support plate; 33, electric push rod; 34, limit block; 35, handle; 36, rotating rod; 37, insertion hole slot; 38, telescopic insertion plate; 39, connecting sleeve; 301, insertion rod; 4, clamping mechanism; 41, moving assembly; 411, bidirectional threaded rod; 412, limit seat; 413, limit plate; 414, double-shaft motor; 415, worm; 416, T-shaped groove; 417, worm wheel; 418, T-shaped block; 419, moving plate; 4101, mounting seat; 4102, clamping ring; 4103, T-shaped annular sliding groove; 4104, T-shaped annular sliding plate; 42, stabilizing assembly; 421, fixed rod; 422, rotating plate; 423, inclined plate; 424, long block; 425, bolt; 426, long slot. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense. For example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0034] The present application provides the following technical solutions:

[0035] Embodiment one

[0036] In combination Figures 1 to 5 A kind of quick clamping device for engine crankshaft machining, including base 1 and engine crankshaft 2, engine crankshaft 2 left and right sides are fixedly connected with crankshaft rod 21, base 1 and crankshaft rod 21 are provided with clamping mechanism 4, clamping mechanism 4 is provided with rotating mechanism 3;

[0037] Clamping mechanism 4 includes moving assembly 41 and stabilizing assembly 42, stabilizing assembly 42 is set on moving assembly 41;

[0038] The moving assembly 41 comprises T-shaped grooves 416 formed on the left and right sides of the top of the base 1, a double-shaft motor 414 fixedly connected to the center of the top of the base 1, a worm 415 fixedly connected to the left and right ends of the double-shaft motor 414, a worm wheel 417 meshedly connected to the top of the worm 415, a bidirectional threaded rod 411 fixedly connected to the shaft center of the worm wheel 417, moving plates 419 threadedly connected to the front and back surfaces of the bidirectional threaded rod 411, T-shaped blocks 418 fixedly connected to the bottom of the moving plates 419, mounting seats 4101 fixedly connected to the inner sides of the moving plates 419, T-shaped annular sliding grooves 4103 formed in the inner sides of the mounting seats 4101, T-shaped annular sliding plates 4104 slidingly connected to the inside of the T-shaped annular sliding grooves 4103, clamping rings 4102 fixedly connected to the side of the T-shaped annular sliding plates 4104 close to the crankshaft 21, and the clamping rings 4102 arranged on the surface of the crankshaft 21.

[0039] The two worms 415 are rotatably connected to the surfaces of the two worms 415 and the inside of the limiting seat 412, the thread specifications of the surfaces of the two worms 415 are consistent and the directions are the same, the two bidirectional threaded rods 411 are rotatably connected to the surfaces of the two bidirectional threaded rods 411 and the inside of the limiting plate 413, the thread specifications of the front and back surfaces of the two bidirectional threaded rods 411 are consistent and the directions are opposite, the four T-shaped blocks 418 are in two groups, and the surfaces of the T-shaped blocks 418 are slidingly connected to the inside of the T-shaped grooves 416.

[0040] The stable assembly 42 comprises a fixed rod 421 fixedly connected to the inside of the mounting seat 4101, a rotating plate 422 rotatably connected to the lower surface of the fixed rod 421, an inclined plate 423 fixedly connected to the bottom of the rotating plate 422, a long block 424 fixedly connected to the other side of the inclined plate 423, long grooves 426 formed on the outer sides of the left and right moving plates 419, and bolts 425 threadedly connected to the inside of the moving plates 419 and the long block 424.

[0041] Further, when the worm wheel 417 rotates to drive the bidirectional threaded rod 411 to rotate, the front and rear moving plates 419 move to the opposite side on the surface of the bidirectional threaded rod 411. When the moving plates 419 move, the mounting seat 4101 is driven, so that the clamping ring 4102 clamps and fixes the crankshaft rod 21. When the engine crankshaft 2 is machined later, the engine crankshaft 2 will not shake in position. The rotating plate 422 is rotated at the bottom of the fixed rod 421. The rotating plate 422 drives the inclined plate 423, and the inclined plate 423 drives the long block 424 inserted in the long groove 426. The long block 424 and the moving plate 419 are fixed by the bolt 425. The inclined plate 423, the mounting seat 4101 and the moving plate 419 form a triangular stable relationship, so that the two side supporting parts are not broken when the engine crankshaft 2 is machined.

[0042] Embodiment two

[0043] Reference Figures 1-8 On the basis of embodiment one, the rotating mechanism 3 further comprises support plates 32 fixedly connected to the centers of the left and right sides of the base 1. Rotating rods 36 are rotatably connected inside the support plates 32. Handles 35 are fixedly connected to the outer sides of the left and right rotating rods 36. Insert hole grooves 37 are formed around the surfaces of the handles 35. Limiting blocks 34 are fixedly connected to the lower ends of the outer sides of the left and right support plates 32. Electric push rods 33 are fixedly connected to the top of the limiting blocks 34. Insert rods 301 are fixedly connected to the top of the electric push rods 33. The surfaces of the insert rods 301 are inserted into the insert hole grooves 37. Insert slots 31 are formed on the temples of the side of the clamping ring 4102 close to the support plates 32. Connection sleeves 39 are fixedly connected to the inner sides of the left and right rotating rods 36. Telescopic insertion plates 38 are fixedly connected around the surfaces of the connection sleeves 39.

[0044] The side of the insert slot 31 close to the support plate 32 is open. The surfaces of the telescopic insertion plates 38 are inserted into the inside of the support plates 32. The connection sleeves 39 are sleeved on the surface of the crankshaft rod 21. The connection sleeves 39 are arranged between the clamping ring 4102 and the support plates 32. Through long grooves are formed on the front of the connection sleeves 39. The surface of the crankshaft rod 21 is inserted into the through long groove formed on the front of the connection sleeve 39.

[0045] Further, the telescopic insertion plates 38 are stretched and inserted into the insert slots 31. When the handles 35 are rotated to drive the rotating rods 36 to rotate, the rotating rods 36 drive the connection sleeves 39 to rotate. When the connection sleeves 39 rotate, the clamping ring 4102 rotates. The clamping ring 4102 drives the T-shaped ring-shaped sliding plate 4104 to slide in the T-shaped ring-shaped sliding groove 4103. The clamped engine crankshaft 2 is rotated, so that different surfaces of the engine crankshaft 2 are machined. When the electric push rod 33 operates to drive the insert rod 301 to be inserted into the insert hole groove 37, the turned engine crankshaft 2 is fixed in position.

[0046] In actual operation, when the device is used, when the engine crankshaft 2 is surface processed, first, the crankshaft rod 21 can be placed through the through long slot opened in the front of the connecting sleeve 39, so that the connecting sleeve 39 is sleeved on the surface of the crankshaft rod 21, when the double-shaft motor 414 is started to drive the two ends of the worm 415 to rotate, the left and right two worms 415 drive the two worm gears 417 at the top to rotate in the same direction, when the worm gear 417 rotates, it can drive the bidirectional threaded rod 411 to rotate, at this time, the front and rear two moving plates 419 move to the opposite side on the surface of the bidirectional threaded rod 411, when the moving plate 419 moves, it can drive the mounting seat 4101, so that the clamping ring 4102 clamps and fixes the crankshaft rod 21, which is convenient for processing the surface of the engine crankshaft 2 later, and the engine crankshaft 2 will not shake in position;

[0047] When the rotating plate 422 is rotated at the bottom of the fixed rod 421, the rotating plate 422 drives the inclined plate 423, the inclined plate 423 drives the long block 424 inserted in the long slot 426, and the long block 424 and the moving plate 419 are threadedly fixed by the bolt 425, so that the inclined plate 423, the mounting seat 4101 and the moving plate 419 present a triangular stable relationship, avoiding the breakage of the two side supporting parts due to stress during the processing of the engine crankshaft 2;

[0048] Again, the telescopic plug plate 38 is stretched and inserted in the plug slot 31, the handle 35 is actuated to drive the rotating rod 36 to rotate, the rotating rod 36 drives the connecting sleeve 39 to rotate, which can make the clamping ring 4102 rotate, so that the clamping ring 4102 drives the T-shaped ring-shaped sliding plate 4104 to slide in the T-shaped ring-shaped sliding groove 4103, which is convenient for rotating the clamped engine crankshaft 2, and is convenient for processing different surfaces of the engine crankshaft 2, when the electric push rod 33 operates to drive the plug rod 301 to be inserted in the plug hole slot 37, the position of the turned engine crankshaft 2 can be fixed.

[0049] It should be noted that in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment. Without more limitations, the element defined by the statement "including a......" does not exclude the presence of additional identical elements in the process, method, article or equipment including the said element.

Claims

1. A quick clamping device for engine crankshaft machining comprising a base (1) and an engine crankshaft (2), characterized in that: The engine crankshaft (2) is fixedly connected with crank rods (21) on the left and right sides, the base (1) and the crank rods (21) are provided with clamping mechanisms (4), and the clamping mechanisms (4) are provided with rotating mechanisms (3). The clamping mechanism (4) comprises a moving assembly (41) and a stabilizing assembly (42), and the stabilizing assembly (42) is arranged on the moving assembly (41). The moving assembly (41) comprises T-shaped grooves (416) which are arranged on the left and right sides of the top of the base (1), a double-shaft motor (414) is fixedly connected to the center of the top of the base (1), worm gears (415) are fixedly connected to the left and right ends of the double-shaft motor (414), the top of each worm gear (415) is meshingly connected with a worm wheel (417), the shaft center of the worm wheel (417) is fixedly connected with a bidirectional threaded rod (411), the front and rear surfaces of the bidirectional threaded rod (411) are both threadedly connected with a moving plate (419), the bottom of the moving plate (419) is fixedly connected with a T-shaped block (418), the inner sides of the two moving plates (419) are fixedly connected with mounting seats (4101), T-shaped annular sliding grooves (4103) are arranged in the inner sides of the two mounting seats (4101), T-shaped annular sliding plates (4104) are slidably connected in the T-shaped annular sliding grooves (4103), and clamping rings (4102) are fixedly connected to the side of each T-shaped annular sliding plate (4104) close to the crank rod (21).

2. A quick clamping device for engine crankshaft machining according to claim 1, characterized in that: The number of the worm gears (415) is two, the worm gears (415) are rotatably connected with the limit seats (412), and the thread specifications of the worm gears (415) are consistent and the directions are the same.

3. A quick clamping device for engine crankshaft machining according to claim 1 characterized in that: The number of the bidirectional threaded rods (411) is two, the bidirectional threaded rods (411) are rotatably connected with the limit plates (413), and the thread specifications of the bidirectional threaded rods (411) are consistent and the directions are opposite.

4. A quick clamping device for engine crankshaft machining according to claim 1 characterized in that: The number of the T-shaped blocks (418) is four, and the T-shaped blocks (418) are arranged in pairs, and the T-shaped blocks (418) are slidably connected with the T-shaped grooves (416).

5. A quick clamping device for engine crankshaft machining according to claim 1 characterized in that: The stabilizing assembly (42) comprises a fixed rod (421), the fixed rod (421) is fixedly connected to the inside of the mounting seat (4101), a rotating plate (422) is rotatably connected to the lower surface of the fixed rod (421), an inclined plate (423) is fixedly connected to the bottom of the rotating plate (422), a long block (424) is fixedly connected to the other side of the inclined plate (423), long grooves (426) are arranged on the outer sides of the moving plates (419), and the moving plates (419) and the long block (424) are both threadedly connected with bolts (425).

6. A quick clamping device for engine crankshaft machining according to claim 5, characterized in that: The front and rear sides and the outer sides of the long grooves (426) are all provided with openings, and the surface of the long block (424) is inserted into the long grooves (426).

7. A quick clamping device for engine crankshaft machining according to claim 1 characterized in that: The rotating mechanism (3) comprises a support plate (32) fixedly connected to the center of the left and right sides of the base (1), a rotating rod (36) rotatably connected inside the support plate (32), a handle (35) fixedly connected to the outer side of the left and right rotating rods (36), a plug hole slot (37) formed around the surface of the handle (35), a limiting block (34) fixedly connected to the lower end of the outer side of the left and right support plates (32), an electric push rod (33) fixedly connected to the top of the limiting block (34), a plug rod (301) fixedly connected to the top of the electric push rod (33), the plug rod (301) being inserted into the plug hole slot (37), a plug slot (31) formed on the temple of the side of the support plate (32) close to the clamping ring (4102), and a connecting sleeve (39) fixedly connected to the inner side of the left and right rotating rods (36).

8. A quick clamping device for engine crankshaft machining according to claim 7, characterized in that: The plug slot (31) is open on the side close to the support plate (32), and the surface of the telescopic plug plate (38) is inserted into the inside of the support plate (32).

9. A quick clamping device for engine crankshaft machining according to claim 7, characterized in that: The connecting sleeve (39) is sleeved on the surface of the crank rod (21), and is arranged between the clamping ring (4102) and the support plate (32).

10. A quick clamping device for engine crankshaft machining according to claim 7, characterized in that: The connecting sleeve (39) is provided with a through long slot on the front side, and the surface of the crank rod (21) is inserted into the through long slot on the front side of the connecting sleeve (39).

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