Locking mechanism of movable gantry machine body

Abstract

Provided is a locking mechanism of a movable gantry machine body. Relates to an improvement on a guiding and locking mechanism of a split type stand column of a horizontal type die closing hydraulic machine. And the positioning action is sensitive and reliable, and blockage and jamming can be avoided. The machine body comprises a fixed cross beam and a sliding workbench; the locking mechanism comprises a positioning sleeve, a positioning rod and a halving clamping ring; the positioning sleeve is in a rod shape, one end of the positioning sleeve is fixed to the outer end of the fixed cross beam, a positioning rod mounting hole is formed in the other end of the positioning sleeve, and a halving clamping ring mounting hole penetrating through the positioning rod mounting hole in the vertical direction is further formed in the other end of the positioning sleeve. One end of the positioning rod is fixedly connected to the sliding workbench, and the other end of the positioning rod is provided with a positioning clamping groove. And the halving snap ring is arranged at an orifice of the halving snap ring mounting hole through a support and a driving cylinder. According to the clamping and embedding type positioning structure, after the positioning rod and the halving clamping ring are sequentially arranged in place, the axial position precision can be guaranteed, and the radial position precision can also be guaranteed. Locking is reliable, parts are not prone to being damaged, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of composite material forming equipment, in particular to an improvement on the guiding and locking mechanism of the split columns of a horizontal die closing hydraulic press. Technical Background

[0002] The horizontal die closing hydraulic press adopts a gantry split structure. When the sliding workbench reaches the die closing position, the sliding workbench and the crossbeam need to be locked to ensure the die closing accuracy.

[0003] Traditional split column locking devices, such as Figure 5 , 6 As shown, mainly through the insertion and cooperation of the original positioning rod a and the positioning sleeve 1. When reaching the locking position, the positioning pin b sequentially passes through the positioning holes on the positioning sleeve 1 and the original positioning rod a to complete the sliding cooperation action. At this time, the positioning sleeve 1 and the original positioning rod 2 form an organic whole through the annular surface cooperation, that is, the crossbeam and the sliding workbench form a closed frame structure through the split column device. This locking structure has poor guiding accuracy. When at the locking position, it is difficult to ensure the coaxiality of the positioning sleeve hole and the positioning rod hole. That is to say, there will be a large fitting gap h between the hole of the positioning sleeve 1 and the positioning pin b both theoretically and in actual situations. And in this structural mode, when the positioning pin b is inserted, first, if there is a misalignment of the holes, it will be difficult to insert. Second, due to the surface contact during the insertion process, the insertion resistance will be relatively large. When the main machine is working, the positioning pin b bears the main tension and is prone to deformation. After deformation, the positioning pin b and the cooperating positioning hole will be stuck and it will be difficult to withdraw. This method not only has serious wear but also is difficult to repair and has a high cost. Summary of the Invention

[0004] The utility model aims at the above technical problems and provides a locking mechanism for a mobile gantry body with sensitive and reliable positioning actions, which can effectively avoid jamming and sticking and has accurate positioning.

[0005] The mobile gantry body includes a fixed crossbeam and a sliding workbench. The locking mechanism includes a positioning sleeve, a positioning rod, and a split retaining ring;

[0006] The positioning sleeve is rod-shaped, one end is fixedly connected to the outer end of the fixed crossbeam, the other end is provided with a positioning rod installation hole in the horizontal direction, and the other end of the positioning sleeve is also provided with a split retaining ring installation hole penetrating the positioning rod installation hole in the vertical direction;

[0007] One end of the positioning rod is fixedly connected to the sliding workbench, and the other end is provided with a positioning card slot;

[0008] The split retaining ring is arranged at the orifice of the split retaining ring installation hole through a support and a driving cylinder.

[0009] Further, the support is fixedly connected to the orifice of the split retaining ring mounting hole on the positioning sleeve, the driving cylinder is fixedly connected to the support, the piston rod of the driving cylinder faces the orifice, the split retaining ring is connected to the outer end of the piston rod, and the outer diameter of the split retaining ring is adapted to the inner diameter of the split retaining ring mounting hole.

[0010] Further, the end of the split retaining ring facing the orifice is provided with a groove adapted to the outer circle of the positioning card slot, so that the groove can be inserted into the positioning card slot.

[0011] Further, a guiding chamfer is provided at the front end of the positioning rod.

[0012] Further, a pair of split retaining rings are provided, which are respectively arranged at the upper orifice and the lower orifice of the split retaining ring mounting hole on the positioning sleeve.

[0013] The beneficial effects of the present utility model compared with the prior art are as follows: First, the adopted positioning rod and positioning sleeve are guided by sliding fit on the cylindrical surface, which improves the guiding accuracy. When locking, the wear of the split retaining ring is reduced, its service life is increased, and thus the later maintenance cost is reduced.

[0014] Second, the locking mechanism changes the original locking method of inserting a bolt, and adopts a fitting method of clamping the split retaining ring with the outer ring surface of the positioning rod, effectively solving the problems of jamming and sticking. During use, when the split retaining ring inevitably wears, it is also convenient to replace.

[0015] Third, the fitting method of clamping the split retaining ring with the outer ring surface of the positioning rod solves the problem of "gap" generated during the original plugging.

[0016] Fourth, the split retaining rings respectively arranged at the upper and lower orifices can improve the position accuracy of the axis of the positioning rod. When there are problems with the position accuracy, the position accuracy of the axis of the positioning rod can be adjusted by adjusting the action parameters of the upper and lower driving cylinders.

[0017] The clamping positioning structure adopted by the present utility model can ensure both the axial position accuracy and the radial position accuracy after the positioning rod and the split retaining ring are in place successively. The locking is reliable, the parts are not easily damaged, and the service life of the device is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the application state of the present utility model,

[0019] Figure 2 is a three-dimensional exploded view of the locking mechanism of the present utility model,

[0020] Figure 3 is a schematic structural diagram of the locking mechanism of the present utility model,

[0021] Figure 4 is Figure 3 the right view of

[0022] Figure 5 which is a schematic structural view of the locking mechanism in the background art,

[0023] Figure 6 is Figure 5 the A-A cross-sectional view in

[0024] In the figure:

[0025] 1 is the positioning sleeve, 11 is the split snap ring mounting hole, 12 is the positioning rod mounting hole, 2 is the positioning rod, 21 is the positioning slot, 22 is the guiding chamfer, 3 is the split snap ring, 31 is the groove, 4 is the driving cylinder, 41 is the support, 5 is the fixed cross beam, 6 is the sliding workbench;

[0026] a is the original positioning rod, b is the positioning pin, h is the clearance. Specific embodiments

[0027] The following will Figures 1-4 describe in detail the embodiments of the present invention in conjunction with the attached

[0028] The present invention includes: The mobile gantry body includes a fixed cross beam 5 and a sliding workbench 6, and the locking mechanism includes a positioning sleeve 1, a positioning rod 2 and a split snap ring 3;

[0029] The positioning sleeve 1 is rod-shaped, one end is fixedly connected to the outer end of the fixed cross beam 5, and the other end is provided with a horizontal positioning rod mounting hole 12. At the other end of the positioning sleeve 1, there is also a split snap ring mounting hole 11 that penetrates the positioning rod mounting hole 12 in the vertical direction;

[0030] One end of the positioning rod 2 is fixedly connected to the sliding workbench 6, and the other end is provided with a positioning slot 21;

[0031] The split snap ring 3 is arranged at the orifice of the split snap ring mounting hole 11 through the support 41 and the driving cylinder 4.

[0032] Furthermore, the support 41 is fixedly connected to the orifice of the split snap ring mounting hole 11 on the positioning sleeve 1, the driving cylinder 4 is fixedly connected to the support 41, the piston rod of the driving cylinder 4 faces the orifice, and the split snap ring 3 is connected to the outer end of the piston rod. The outer diameter of the split snap ring 3 is adapted to the inner diameter of the split snap ring mounting hole 11.

[0033] Furthermore, the end of the split snap ring 3 facing the orifice is provided with a groove 31 that is adapted to the outer circle of the positioning slot 21, so that the groove 31 can be inserted into the positioning slot 21, and the groove 31 is clamped on the positioning slot 21, so that there is no clearance between the positioning rod 2 and the split snap ring 3, increasing the coaxial accuracy between the two, and further improving the guiding accuracy.

[0034] Further, a guiding chamfer 22 is provided at the front end of the positioning rod 2 to facilitate the insertion of the positioning rod 2 into the positioning sleeve 1 more conveniently when locking is required.

[0035] Further, a pair of split retaining rings 3 are provided and are respectively arranged at the upper and lower orifices of the split retaining ring mounting holes 11 on the positioning sleeve 1. When there are problems with position accuracy, the position accuracy of the axis of the positioning rod 2 can be adjusted by adjusting the action parameters of the upper and lower driving cylinders 4, effectively ensuring the accuracy of mold closing.

[0036] In the working state of the present utility model: the fixed crossbeam 5 is installed at one end of the base, and the positioning sleeve 1 is installed at the front end of the fixed crossbeam 5; the sliding workbench 6 is installed at the other end of the base, and the positioning rod 2 is installed at the front end of the sliding workbench 6. When mold closing is required, the sliding crossbeam 6 pushes the positioning rod 2 to start docking. When the positioning rod 2 is inserted into the locking position in the positioning sleeve 1, a pair of split retaining rings 3 above and below the positioning sleeve 1 are simultaneously pushed by the oil cylinder 4 to reach the positioning card slots 21, so that the grooves 31 are clamped in the positioning card slots 21 to complete the locking.

[0037] The present utility model is not limited to the above embodiments. Based on the technical solutions disclosed in the present utility model, those skilled in the art can make some substitutions and deformations to some technical features without creative labor according to the disclosed technical content, and these substitutions and deformations are within the protection scope of the present utility model.

Claims

1. A locking mechanism for a mobile gantry body, wherein the mobile gantry body comprises a fixed crossbeam (5) and a sliding workbench (6), characterized in that: The locking mechanism comprises a positioning sleeve (1), a positioning rod (2) and a bisecting clamping ring (3); The positioning sleeve (1) is in the shape of a rod, one end of which is fixedly connected to the outer end of the fixed crossbeam (5), and the other end of which is provided with a horizontal positioning rod mounting hole (12); and the other end of the positioning sleeve (1) is also provided with a bisecting clamp ring mounting hole (11) which passes through the positioning rod mounting hole (12) in a vertical direction; One end of the positioning rod (2) is fixedly connected to the sliding workbench (6), and the other end is provided with a positioning slot (21); The split clamp ring (3) is arranged at the opening of the split clamp ring mounting hole (11) via a support (41) and a drive cylinder (4).

2. The locking mechanism of the mobile gantry body according to claim 1, characterized in that: The support (41) is fixedly connected to the opening of the bisecting clamping ring mounting hole (11) on the positioning sleeve (1), the driving cylinder (4) is fixedly connected to the support (41), the piston rod of the driving cylinder (4) faces the opening, the bisecting clamping ring (3) is connected to the outer end of the piston rod, and the outer diameter of the bisecting clamping ring (3) is adapted to the inner diameter of the bisecting clamping ring mounting hole (11).

3. The locking mechanism of the mobile gantry body according to claim 1, characterized in that: The end of the split clamp ring (3) facing the orifice is provided with a groove (31) matching the outer circle of the positioning clamp groove (21), so that the groove (31) can be inserted into the positioning clamp groove (21).

4. The locking mechanism of the mobile gantry body according to claim 1, characterized in that: The front end of the positioning rod (2) is provided with a guide chamfer (22).

5. The locking mechanism of the mobile gantry body according to claim 1, characterized in that: The bisecting clamping ring (3) is provided in pair, and is respectively arranged at the upper opening and the lower opening of the bisecting clamping ring mounting hole (11) on the positioning sleeve (1).

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