Assembling mechanism for heavy disc workpieces

Abstract

The utility model relates to the field of clamping tools, in particular to an assembling mechanism for heavy disc workpieces, which is characterized in that a gear driving mechanism is arranged above a bottom frame, a pneumatic control unit is mounted on one side of the gear driving mechanism, and centering clamping mechanisms are arranged at two side ends above the gear driving mechanism; a screw supporting mechanism is arranged on the portion, located above the gear driving mechanism, between the two centering clamping mechanisms, the gear driving mechanism comprises a linear guide rail assembly and a clamping air cylinder, racks are installed on the lower surfaces of two connecting plates, a gear is connected between the two racks, and each centering clamping mechanism comprises a supporting plate, a first jacking air cylinder and a top plate. The whole pneumatic control clamping force of the device can be switched, the clamping force can flow on a line body, the assembling efficiency is improved, the preassembled screw on the disc keeps fixed, movement is avoided, the assembling error is reduced, the function of switching the pneumatic control clamping force is designed, and the economical efficiency and convenience of pneumatic control can be fully exerted under the specific assembling requirement.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of clamping frock, concretely is a kind of assembly mechanism for heavy disc type workpiece. BACKGROUND

[0002] Disc type parts are one of the typical parts commonly used in machinery, and its application range is very wide, such as various forms of bearings supporting transmission shafts, guide sleeves on clamps, cylinder sleeves, intermediate connecting pieces in pipelines, etc. Disc type parts usually play a supporting and guiding role, and different disc type parts have many similarities, such as the main surface is basically cylindrical. In industrial production, it is often necessary to clamp and position such parts in order to facilitate machining and assembly. On the automated assembly line, the same part usually needs to be assembled with multiple parts, or multiple identical parts need to be assembled on the same workpiece multiple times. At this time, the positioning mechanism needs to flow on the production line body. Because the frock as a whole flows, it needs to keep the disc clamped continuously without loosening in the process of power failure and gas failure.

[0003] However, the clamping speed is not easy to control when the conventional cylinder is used to drive clamping, and there is impact force during clamping, which can easily cause damage to the appearance of the product. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the utility model provides an assembly mechanism for heavy disc type workpiece, which solves the problems mentioned in the background.

[0005] The utility model provides the following technical scheme: an assembly mechanism for heavy disc type workpiece, comprising a bottom frame, a gear driving mechanism is arranged above the bottom frame, a pneumatic control unit is installed on one side of the gear driving mechanism, a centering clamping mechanism is arranged on the upper sides of the gear driving mechanism, a screw support mechanism is arranged above the gear driving mechanism between the two centering clamping mechanisms, the gear driving mechanism comprises a linear guide rail assembly and a clamping cylinder, a connecting plate is arranged above the linear guide rail assembly below the two centering clamping mechanisms, a connecting block is installed on the side surface of the connecting plate on the right side, a floating joint is connected between the connecting block and the clamping cylinder, a gear rack is installed on the lower surface of the two connecting plates, a gear is connected between the two gear racks, a compression wheel assembly is installed between the gear rack on the left side and the linear guide rail assembly, the centering clamping mechanism comprises a supporting plate, a first jacking cylinder and a top plate, a nylon pad is arranged on the upper end of the supporting plate above the top plate, a polyurethane pad is installed on the upper surface of the nylon pad, and a supporting plate is installed between the polyurethane pad and the supporting plate.

[0006] As a further scheme of the utility model: the bottom frame includes: square tube frame, bottom plate, sliding plate, the upper surface of bottom plate is installed with V type positioning block, both sides of square tube frame are installed with polyurethane anti -collision block.

[0007] As a further scheme of the utility model: the screw support mechanism includes: base, second jacking cylinder, support disc, the top of support disc is installed with disc.

[0008] As a further scheme of the utility model: the rack is rotatably connected with the gear, and the rack is fixedly connected with the connecting plate.

[0009] As a further scheme of the utility model: the connecting plate is slidably connected with the linear guide rail assembly, and the clamping cylinder is fixedly connected with the connecting block through the floating joint.

[0010] As a further scheme of the utility model: the top plate is fixedly connected with the first jacking cylinder, and the support plate is fixedly connected with the connecting plate.

[0011] As a further scheme of the utility model: the V type positioning block is fixedly connected with the bottom plate.

[0012] As a further scheme of the utility model: the outer side of the support disc is provided with an embedded groove corresponding to the positions of the two centering and clamping mechanisms.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The function of switchable pneumatic control clamping force is designed, the economy and convenience of pneumatic control can be fully exerted under specific assembly requirements, the assembly efficiency is improved, the preassembled screw on the disc is kept fixed to avoid shifting and reduce assembly error.

[0015] 2. The switchable pneumatic control clamping force of the device as a whole, the centering and clamping mechanism and the screw support mechanism for positioning heavy disc workpieces for assembly can flow on the body to improve the assembly efficiency, the preassembled screw on the disc is kept fixed to avoid shifting and reduce assembly error, the function of switchable pneumatic control clamping force is designed, the economy and convenience of pneumatic control can be fully exerted under specific assembly requirements. DRAWINGS

[0016] Figure 1 It is a structural schematic view of an assembly mechanism for heavy disc workpieces;

[0017] Figure 2 It is a structural schematic view of a bottom frame in an assembly mechanism for heavy disc workpieces;

[0018] Figure 3It is a structural schematic view of a gear driving mechanism in an assembling mechanism for heavy disc workpieces;

[0019] Figure 4 It is a structural schematic view of a centering and clamping mechanism in an assembling mechanism for heavy disc workpieces;

[0020] Figure 5 It is a structural schematic view of a screw rod supporting mechanism in an assembling mechanism for heavy disc workpieces.

[0021] In the figure: 1, bottom frame; 2, gear driving mechanism; 3, centering and clamping mechanism; 4, screw rod supporting mechanism; 5, pneumatic control unit; 6, disc; 7, polyurethane anti-collision block; 8, square tube frame; 9, bottom plate; 10, sliding plate; 11, V-shaped positioning block; 12, linear guide rail assembly; 13, connecting plate; 14, clamping cylinder; 15, floating joint; 16, connecting block; 17, rack; 18, pressing wheel assembly; 19, gear; 20, supporting plate; 21, first lifting cylinder; 22, top plate; 23, nylon pad; 24, polyurethane pad; 25, supporting plate; 26, base; 27, second lifting cylinder; 28, supporting disc. DETAILED DESCRIPTION

[0022] 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 the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0023] As Figures 1-5As shown, this embodiment provides an assembly mechanism for heavy disc-shaped workpieces, including a bottom frame 1. A gear drive mechanism 2 is arranged above the bottom frame 1. A pneumatic control unit 5 is installed on one side of the gear drive mechanism 2. The pneumatic control unit 5 includes components such as a pneumatic quick connector, a five-way solenoid valve, a pressure reducing valve, a connector, an air pipe, an induction check valve, and a speed control valve island. The principle is to achieve the function of first positioning with low clamping force and then fixing with high clamping force by controlling the switching of two air intake paths with different pressures. The induction check valve can maintain the original clamping state without loosening when the air is cut off. Centering clamping mechanisms 3 are arranged on both sides above the gear drive mechanism 2. A screw support mechanism 4 is arranged between the two centering clamping mechanisms 3 above the gear drive mechanism 2. The gear drive mechanism 2 includes a linear guide rail assembly 12 and a clamping cylinder 14. A connecting plate 13 is arranged above the linear guide rail assembly 12 and below the two centering clamping mechanisms 3. The connecting plate 13 and the screw support mechanism 4 are connected to the screw support mechanism 4. The linear guide assembly 12 is slidably connected. A connecting block 16 is installed on the side surface of the connecting plate 13 on the right side. A floating joint 15 connects the connecting block 16 and the clamping cylinder 14. The clamping cylinder 14 is fixedly connected to the connecting block 16 through the floating joint 15. A rack 17 is installed on the lower surface of both connecting plates 13. The rack 17 is fixedly connected to the connecting plate 13. A gear 19 connects the two racks 17. The rack 17 and the gear 19 mesh and rotate. The rack on the left side... A clamping wheel assembly 18 is installed between 17 and the linear guide assembly 12. The centering clamping mechanism 3 includes: a support plate 20, a first lifting cylinder 21, and a top plate 22. The top plate 22 is fixedly connected to the first lifting cylinder 21. The support plate 20 is fixedly connected to the connecting plate 13. A nylon pad 23 is provided above the top plate 22 at the upper end of the support plate 20. A polyurethane pad 24 is installed on the upper surface of the nylon pad 23. A support plate 25 is installed between the polyurethane pad 24 and the support plate 20.

[0024] like Figures 2-3 As shown, in this embodiment, there are square tube frame 8, base plate 9, and slide plate 10. A V-shaped positioning block 11 is installed on the upper surface of the base plate 9 and is fixedly connected to the base plate 9. Polyurethane anti-collision blocks 7 are installed on both sides of the square tube frame 8. The screw support mechanism 4 includes: base 26, second lifting cylinder 27, and support plate 28. A disc 6 is installed on the top of the support plate 28. Screws are pre-installed on the support plate 28 and the top plate 22. An embedded groove is opened on the outer side of the support plate 28 corresponding to the positions of the two centering clamping mechanisms 3.

[0025] The utility model discloses a working principle is: bottom frame 1 is integrally welded into shape through square tube frame 8, bottom plate 9, and the polyurethane anti -collision block 7 of installation in the side of bottom frame 1, play the prevention collision, play the buffering effect, set up V type locating block 11, for the overall positioning of the mechanism above, the setting of slide plate 10 and for reducing the friction of line body contact, when working, the device whole stops in the line body predetermined position, and the positioning device on the line body inserts into this mechanism V type locating block 11 in the extension, make the whole set of equipment position positioning accurate, and fixed immovably, pneumatic control unit 5 inside gas electricity quick plug butt joint, give mechanism gas, power supply, initial state, clamping cylinder 14 is the extension state, connecting plate 13 and centering clamping mechanism 3 are far apart on linear guide rail assembly 12, are in the open state, and centering clamping dress, the first jacking cylinder 21 and second jacking cylinder 27 in centering clamping mechanism 3 and screw rod support mechanism 4 inside are all in the contraction state, and have not extended, after moving to the just above device whole by gripper grabbing disc 6, make disc 6 center and gear 19 center coincide after putting down in the lower direction, stop descending at disc 6 distance nylon pad 23 1-2mm, at this time, through low pressure gas to clamping cylinder 14 gas contraction, drive centering clamping mechanism 3 to move inwards, when polyurethane pad 24 contacts the circumference of disc 6, clamping cylinder 14 breaks gas, makes it keep, at this time, the clamping of disc 6 is loosened by gripper, disc 6 relies on the weight and switches into high pressure gas path again after contacting nylon pad 23, and makes it contract and clamp disc 6, the first jacking cylinder 21 and second jacking cylinder 27 in centering clamping mechanism 3 and screw rod support mechanism 4's inside all extend upwards, and the purpose of clamping force switching is to avoid clamping the surface of disc and prevent disc from falling unevenly to cause assembly difficulty, after disc 6 clamping, the nut assembly action of gripper grabbing connecting seat is carried out, after completing assembly, the upper positioning device of whole device is retracted, and the gas electricity quick plug in pneumatic control unit 5 inside breaks, and the device flows into the next station and works, and the pneumatic control principle of clamping cylinder is: gas is input through gas electricity quick plug, passes through valve island and two position five way solenoid valve, and makes the gas enter the rod cavity of clamping cylinder 14, and the cylinder contracts to realize clamping function, when the gas enters the rod cavity of clamping cylinder 14, the two high and low pressure paths in the interior can be selected to move, and the gas passes through pressure reducing valve and enters the rod cavity of cylinder through two position three way solenoid valve control, and the pressure value of pressure reducing valve is set as low pressure, and the other road gas does not pass through pressure reducing valve, and directly enters the rod cavity of cylinder, and the pressure and gas electricity quick plug pressure remain consistent, so that clamping force switching can be realized, and the speed regulating valve at import and export plays the buffering effect, and the cylinder has rod cavity interface installation inducing check valve, and the purpose is to ensure that the gas electricity quick plug breaks, and the mechanism can still clamp disc 6 under the condition of breaking gas.

[0026] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, and the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0027] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An assembly mechanism for heavy disc-like workpieces, comprising a base frame (1), characterized in that, The upper side of the bottom frame (1) is provided with a gear driving mechanism (2), one side of the gear driving mechanism (2) is provided with a pneumatic control unit (5), the upper side of the gear driving mechanism (2) is provided with a centering clamping mechanism (3) on both sides, and a screw rod supporting mechanism (4) is arranged above the gear driving mechanism (2) between the two centering clamping mechanisms (3), the gear driving mechanism (2) comprises a linear guide rail assembly (12) and a clamping air cylinder (14), the upper side of the linear guide rail assembly (12) is provided with a connecting plate (13) below the two centering clamping mechanisms (3), the side surface of the connecting plate (13) on the right side is provided with a connecting block (16), the connecting block (16) and the clamping air cylinder (14) are connected through a floating joint (15), the lower surface of the two connecting plates (13) is provided with a rack (17), the two racks (17) are connected through a gear (19), and the rack (17) on the left side is provided with a pressing wheel assembly (18) between the linear guide rail assembly (12), the centering clamping mechanism (3) comprises a supporting plate (20), a first lifting air cylinder (21) and a top plate (22), the upper side of the top plate (22) is provided with a nylon pad (23) on the upper end of the supporting plate (20), the upper surface of the nylon pad (23) is provided with a polyurethane pad (24), and the polyurethane pad (24) and the supporting plate (20) are connected through a supporting plate (25).

2. The assembling mechanism for heavy disc-like workpieces according to claim 1, characterized in that, The bottom frame (1) comprises a square tube frame (8), a bottom plate (9) and a sliding plate (10), the upper surface of the bottom plate (9) is provided with a V-shaped positioning block (11), and the two side ends of the square tube frame (8) are provided with polyurethane anti-collision blocks (7).

3. The assembly mechanism for heavy disc-shaped workpieces according to claim 1, characterized in that, The screw rod supporting mechanism (4) comprises a base (26), a second lifting air cylinder (27) and a supporting disc (28), and the upper side of the supporting disc (28) is provided with a disc (6).

4. The assembly mechanism for heavy disc-shaped workpieces according to claim 1, characterized in that, The rack (17) is rotatably connected with the gear (19) in meshing mode, and the rack (17) is fixedly connected with the connecting plate (13).

5. The assembly mechanism for heavy disc-shaped workpieces according to claim 1, characterized in that, The connecting plate (13) is slidably connected with the linear guide rail assembly (12), and the clamping air cylinder (14) is fixedly connected with the connecting block (16) through the floating joint (15).

6. The assembly mechanism for heavy disc-shaped workpieces according to claim 1, characterized in that, The top plate (22) is fixedly connected with the first lifting air cylinder (21), and the supporting plate (20) is fixedly connected with the connecting plate (13).

7. The assembly mechanism for heavy disc-shaped workpieces according to claim 2, characterized in that, The V-shaped positioning block (11) is fixedly connected with the bottom plate (9).

8. The assembly mechanism for heavy disc-shaped workpieces according to claim 3, characterized in that, The outer side of the supporting disc (28) is provided with an embedded groove corresponding to the positions of the two centering clamping mechanisms (3).

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