A new type of lifting positioning device for movable worktable of press

Abstract

The present invention discloses a novel lifting positioning device for a mobile worktable of a press machine, comprising a mounting seat, a bump block body, an end cover, a lower adjustment pad, an upper adjustment pad, a cylinder and a flange plate. The mounting seat is a cylindrical structure that is connected from top to bottom, and the upper end of the mounting seat is provided with a fixing screw hole 1 and a lifting hole, and the lower end is provided with a fixing screw hole 2. The mounting seat is fixed above the plane where the worktable moves; the bump block body is installed in the mounting seat cylinder, and the end cover is fixed in the stop surface at the upper end of the mounting seat to achieve positioning when the bump block body is lifted; the flange plate is fixed below the mounting seat, the cylinder is fixed on the flange plate, and the lower adjustment pad and the upper adjustment pad are installed between the cylinder and the flange plate mounting surface; a convex head is provided at the front end of the moving piston on the cylinder, and a magnetic switch is provided inside the cylinder body. The present invention realizes the lifting or falling of the bump block body by controlling the air intake and exhaust of the cylinder according to the running direction of the mobile worktable, and realizes the positioning requirements when the mobile worktable is bidirectionally actuated.

Description

Technical Field

[0001] The invention relates to a novel lifting positioning device for a movable worktable of a press machine, which is applied to the press machine industry and belongs to the technical field of mechanical engineering. Background Art

[0002] As an important part of the overall structure of the press, the mobile workbench is usually equipped with a workbench plate on top. A T-slot is opened on the top of the plate to fix the lower die or die base, which is convenient for users to replace the mold. With the improvement of users' requirements for production efficiency, the ordinary mobile workbench that moves in one direction cannot meet the needs of users to replace molds. The mobile workbench that moves in two directions is an efficient mold changing tool with the advantages of low cost and low resource consumption, which can meet the convenience of users switching between multiple mold changing stations. However, because the mobile workbench moves in two directions, the ordinary fixed raised workbench positioning device can only meet the positioning requirements of the workbench in one direction due to the protrusion of the moving plane of the workbench, and cannot meet the positioning requirements of the workbench that moves in two directions. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a novel liftable positioning device for a movable worktable of a press machine in view of the defects of the prior art.

[0004] In order to solve this technical problem, the present invention provides a novel lifting positioning device for a movable worktable of a press machine, comprising a mounting seat, a bump block body, an end cover, a lower adjustment pad, an upper adjustment pad, a cylinder and a flange plate. The mounting seat body is a cylindrical structure that is connected from top to bottom. The upper end of the mounting seat is provided with a fixing screw hole 1 and a lifting hole, and the lower end is provided with a fixing screw hole 2. The mounting seat is fixed above the plane where the worktable moves by passing a screw 1 through the fixing screw hole 1; the bump block body is installed in the cylindrical body of the mounting seat, and the end cover is fixed to the stopper surface at the upper end of the mounting seat by a screw 2, so as to realize the positioning of the bump block body when it is lifted; the flange plate is fixed to the bottom of the mounting seat by a screw 4, and the cylinder is fixed to the flange plate by a screw 3, and the lower adjustment pad and the upper adjustment pad are installed between the mounting surface of the cylinder and the flange plate; the positioning device uses an air source as a power source, and drives the lifting and lowering of the positioning bump block body by the up and down movement of the cylinder piston; the front end of the upper moving piston of the cylinder is provided with a convex head, and a magnetic switch is provided inside the cylinder body, and the magnetic switch can effectively control the lifting position height of the bump block body.

[0005] The upper end face of the mounting seat is a quadrilateral flange structure, on which a lifting hole and a fixing screw hole for fixing the mounting seat are provided, which are respectively used for hoisting the device after assembly is completed and for fixing the entire lifting positioning device; a fixing screw hole is provided at the bottom of the mounting seat, and circular stop mounting surfaces of varying sizes are provided on the upper part of the cylinder of the mounting seat, which are respectively used for positioning the bump block and installing the end cover.

[0006] The upper end face of the collision block body is provided with a semicircular convex head structure, and an annular oil groove and an oil filling hole are provided above it. The annular oil groove and the oil filling hole are communicated with each other. When the lubricating oil / grease is injected into the annular oil groove through the oil filling hole, a lubricating film is formed on the inner wall of the cylinder of the mounting seat, which can effectively realize the free up and down lifting of the collision block body; a T-slot is provided at its lower end, and the cylinder is connected to the piston head through the T-slot. A gap is left between the piston head of the cylinder and the upper and lower sides of the T-slot, and the gap size is 1mm to 3mm.

[0007] The end cover is a semicircular structure, and screw holes for a fixed mounting seat and a bump block body are respectively arranged on the upper side thereof.

[0008] The lower adjustment pad and the upper adjustment pad have the same appearance and structure, and the thickness range is ≤2mm. By installing and adjusting the adjustment pads of different thicknesses, the installation gap between the cylinder piston head and the T-slot at the lower end of the bump block body can be achieved.

[0009] The outer circle of the flange is provided with screw holes for fixing to the mounting seat, the bottom inner circle of the flange is provided with screw holes for fixing the cylinder, and a U-shaped opening groove is provided in the thickness direction to realize convenient installation of the cylinder.

[0010] Beneficial effect: The present invention uses an air source as a power source and realizes the free lifting and lowering of the bump block through the up and down movement of the piston in the cylinder. That is, a pair of bump blocks are arranged on each side of the movement direction of the mobile workbench. According to the running direction of the mobile workbench, the air intake and exhaust of the cylinder are controlled to realize the lifting or falling of the bump block, which can effectively realize the positioning requirements when the mobile workbench is started in both directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic cross-sectional view of the general assembly of the present invention;

[0012] Figure 2 It is a structural schematic diagram of the mounting seat of the present invention;

[0013] Figure 3 It is a structural schematic diagram of the collision block body of the present invention;

[0014] Figure 4 It is a schematic diagram of the structure of the end cover of the present invention;

[0015] Figure 5 It is a structural schematic diagram of the lower adjustment pad of the present invention;

[0016] Figure 6 It is a structural schematic diagram of the upper adjustment pad of the present invention;

[0017] Figure 7 It is a structural schematic diagram of the cylinder of the present invention;

[0018] Figure 8 It is a schematic diagram of the structure of the flange of the present invention.

[0019] In the figure: 1 mounting seat, 2 screw 1, 3 bump block, 4 end cover, 5 screw 2, 6 lower adjustment pad, 7 upper adjustment pad, 8 cylinder, 9 screw 3, 10 flange, 11 screw 4, 12 fixing screw hole 1, 13 fixing screw hole 2, 14 lifting hole, 15 oil groove, 16 oil filling hole, 17 T-slot. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and implementation modes.

[0021] like Figure 1-Figure 8 As shown, the present invention provides a novel lifting positioning device for a movable worktable of a press machine, comprising a mounting seat 1, a bump block body 3, an end cover 4, a lower adjustment pad 6, an upper adjustment pad 7, a cylinder 8 and a flange 10. The main body of the mounting seat 1 is a cylindrical structure that is connected from top to bottom. The upper end of the mounting seat 1 is provided with a fixing screw hole 12 and a lifting hole 14, and the lower end is provided with a fixing screw hole 2 13. The mounting seat 1 is fixed above the plane where the worktable moves by screws 2 passing through the fixing screw holes 12; the bump block body 3 is installed in the cylinder of the mounting seat 1, and the end cover 4 is fixed to the stop surface at the upper end of the mounting seat 1 by screws 2 5. It can realize the positioning of the bumper body 3 when it is raised, and prevent dust and other pollutants from entering the oil filling hole of the bumper body 3; the flange 10 is fixed to the bottom of the mounting seat 1 by screws 11, and the cylinder 8 is fixed to the flange 10 by screws 9, and the lower adjustment pad 6 and the upper adjustment pad 7 are installed between the cylinder 8 and the mounting surface of the flange 10; the positioning device uses the air source as the power source, and drives the lifting and lowering of the positioning bumper body 3 through the up and down movement of the piston of the cylinder 8; the front end of the moving piston on the cylinder 8 is provided with a convex head, and a magnetic switch is provided inside the cylinder body, and the magnetic switch can effectively control the lifting position height of the bumper body 3.

[0022] The upper end face of the mounting seat 1 is a quadrilateral flange structure, on which a lifting hole 14 and a fixing screw hole 12 for fixing the mounting seat 1 are provided, which are respectively used for hoisting the device after assembly is completed and for fixing the entire lifting positioning device; a fixing screw hole 2 13 is provided at the bottom of the mounting seat 1, and circular stop mounting surfaces of varying sizes are provided on the upper part of the cylinder of the mounting seat 1, which are respectively used for positioning the bump block 3 and installing the end cover 4.

[0023] The upper end surface of the collision block body 3 is provided with a semicircular convex head structure, and an annular oil groove 15 and an oil injection hole 16 are provided above it. The annular oil groove 15 and the oil injection hole 16 are connected. When the lubricating oil / grease is injected into the annular oil groove 15 through the oil injection hole 16, a lubricating film is formed on the inner wall of the cylinder of the mounting seat 1, which can effectively realize the free lifting and lowering of the collision block body 3; a T-slot 17 is provided at its lower end, and the cylinder 8 is connected to the piston head through the T-slot 17. There is a gap between the piston head of the cylinder 8 and the upper and lower sides of the T-slot, and the gap size is 1mm to 3mm to prevent the piston head of the cylinder 8 from being damaged due to rigid collision. The semicircular collision surface of the upper end surface of the collision block body 3 contacts the fixed collision block on the mobile workbench, which can realize the positioning requirements of the workbench.

[0024] The end cover 4 is a semicircular structure, and screw holes for fixing the mounting seat 1 and the bump block body 3 are respectively provided on the upper side thereof.

[0025] The lower adjustment pad 6 and the upper adjustment pad 7 have the same appearance and structure, but different thicknesses, and the thickness range is ≤2mm. By installing and adjusting the adjustment pads of different thicknesses, the installation gap between the piston head of the cylinder 8 and the T-slot 17 at the lower end of the bump block 3 can be achieved.

[0026] The outer circle of the flange 10 is provided with screw holes for fixing to the mounting base 1, and the bottom inner circle of the flange 10 is provided with screw holes for fixing the cylinder 8. A U-shaped opening groove is provided in the thickness direction to realize the convenient installation of the cylinder 8.

[0027] The lifting type mobile workbench positioning device adopted by the present invention can effectively realize the positioning requirements when the mobile workbench is bidirectionally actuated. By setting the installation gap at the T-shaped opening groove, the problem of damage to the cylinder piston head of the mobile workbench due to rigid collision can be effectively avoided; by setting the oil filling port to lubricate the inner wall of the collision block for a long time, the problem of lifting failure caused by dry friction between the collision block and the inner wall of the mounting seat can be effectively prevented. The overall structure of the present invention is reasonable, the reliability is high, the appearance is elegant, the structure is simple, the installation is convenient, and it is easy to maintain daily.

[0028] The above embodiments of the present invention are merely illustrative and not exclusive, and all modifications within the scope of the present invention or equivalent to the scope of the present invention are encompassed by the present invention.

Claims

1. A new type of lifting positioning device for a movable worktable of a press, characterized in that: The invention comprises a mounting seat (1), a bump block body (3), an end cover (4), a lower adjustment pad (6), an upper adjustment pad (7), a cylinder (8) and a flange (10); the mounting seat (1) is a main body of a cylindrical structure which is connected to each other from top to bottom; the upper end of the mounting seat (1) is provided with a fixing screw hole (12) and a lifting hole (14); the lower end is provided with a fixing screw hole (13); the mounting seat 1 is fixed above the plane on which the workbench moves by means of a screw (2) passing through the fixing screw hole (12); the bump block body (3) is installed in the cylindrical body of the mounting seat (1); the end cover (4) is fixed to the stop surface at the upper end of the mounting seat (1) by means of a screw (5) , can realize the positioning of the collision block (3) when it is raised; the flange (10) is fixed to the bottom of the mounting seat (1) by screw four (11), the cylinder (8) is fixed to the flange (10) by screw three (9), and the lower adjustment pad (6) and the upper adjustment pad (7) are installed between the cylinder (8) and the mounting surface of the flange (10); the positioning device uses the air source as the power source, and drives the lifting and lowering of the positioning collision block (3) through the up and down movement of the piston of the cylinder (8); the front end of the moving piston of the cylinder (8) is provided with a convex head, and a magnetic switch is provided inside the cylinder body, and the magnetic switch can effectively control the lifting position height of the collision block (3); The upper end surface of the mounting seat (1) is a quadrilateral flange structure, and the flange structure is provided with a lifting hole (14) and a fixing screw hole (12) for fixing the mounting seat (1), which are respectively used for lifting the device after assembly and fixing the entire lifting positioning device; a fixing screw hole (13) is provided below the mounting seat (1), and circular stopper mounting surfaces of varying sizes are provided above the cylinder of the mounting seat (1), which are respectively used for positioning the bump block (3) and installing the end cover (4); The upper end surface of the collision block body (3) is provided with a semicircular convex head structure, and an annular oil groove (15) and an oil injection hole (16) are provided above the structure. The annular oil groove (15) and the oil injection hole (16) are in communication with each other. When lubricating oil / grease is injected into the annular oil groove through the oil hole, a lubricating film is formed on the inner wall of the cylinder of the mounting seat (1), so that the collision block body (3) can be effectively lifted and lowered freely. A T-shaped groove (17) is provided at the lower end thereof, and the cylinder (8) is connected to the piston head through the T-shaped groove (17). A gap is left between the piston head of the cylinder (8) and the upper and lower sides of the T-shaped groove, and the gap size is 1 mm to 3 mm.

2. The novel lifting positioning device for a movable worktable of a press machine according to claim 1 is characterized in that: The end cover (4) is a semicircular structure, and screw holes for fixing the mounting seat (1) and the bump block body (3) are respectively provided on the upper side thereof.

3. The novel lifting positioning device for a movable worktable of a press machine according to claim 1 is characterized in that: The lower adjustment pad (6) and the upper adjustment pad (7) have the same appearance and structure, and the thickness range is ≤2 mm. By installing and adjusting the adjustment pads of different thicknesses, the installation gap between the piston head of the cylinder (8) and the T-slot (17) at the lower end of the collision block body (3) can be achieved.

4. The novel lifting positioning device for the movable worktable of a press machine according to claim 1, 2 or 3, characterized in that: The outer circumference of the flange (10) is provided with screw holes for fixing to the mounting seat (1), the inner circumference of the bottom of the flange (10) is provided with screw holes for fixing the cylinder (8), and a U-shaped opening groove is provided in the thickness direction to realize convenient installation of the cylinder (8).

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