Rotary push-pull adjustable safety cock of press machine

Abstract

The invention relates to the technical field of press machines, in particular to a press machine rotary push-pull adjustable safety cock which comprises a fixing support fixedly arranged on the side of a stand column of a press machine, a rotating shaft is arranged on the fixing support, an upper sleeve and a lower sleeve are fixed to the upper end and the lower end of the rotating shaft respectively, and a bearing sleeve is rotationally connected to the portion, between the upper sleeve and the lower sleeve, of the rotating shaft. The periphery of the bearing sleeve is connected with a fixing support, the upper sleeve and the lower sleeve are connected with a rotating support, the rotating support is connected with a horizontal push-pull rod, a push-pull mechanism is connected between the push-pull rod and the rotating support, and the tail end of the push-pull rod is connected with a safety cock assembly with the adjustable height. According to the rotary push-and-pull adjustable safety cock of the press machine, multi-directional adjustment of the direction, the extending length and the supporting height of the safety cock is achieved through the rotating, push-and-pull and height adjusting structures, so that the use requirement of the safety cock is met.

Description

Technical Field

[0001] The present invention relates to the technical field of presses, and particularly relates to a rotatable, push-pull adjustable safety bolt for use in assisting the upper and lower dies of a press. Background Art

[0002] The safety bolt of a press is an essential safety auxiliary equipment during safety inspections and die adjustments of the press. It is supported between the slider and the workbench to prevent the slider from sliding down accidentally when the press is started unexpectedly, and is a safety device to protect operators, maintenance workers, and the press.

[0003] In the prior art, the stroke and adjustment amount of the die testing press of the press are large, the length of the safety bolt is large, and the overall weight is heavy, making it difficult to carry manually. There are many types and sizes of dies for the press, and the lifting lugs of many large dies exceed the range of the workbench surface, leaving a small available space for the press. Therefore, the frequency of using the safety bolt during die testing is relatively high. To protect operators and dies and facilitate taking, it is required that the safety bolt should not only meet the usage requirements in multiple directions and angles, but also be able to vacate the operation space and product flow space around the press when the safety bolt is idle. Therefore, a safety bolt structure that can be flexibly adjusted and is convenient for storage needs to be designed. Summary of the Invention

[0004] In view of the diverse usage requirements of the safety bolt of the press in the prior art, the present invention provides a rotatable, push-pull adjustable safety bolt for a press, which realizes multi-directional adjustment of the orientation, insertion length, and support height of the safety bolt through rotation, push-pull, and height adjustment structures to meet the usage requirements of the safety bolt.

[0005] The purpose of the present invention is achieved as follows. A rotatable, push-pull adjustable safety bolt for a press, characterized in that it includes a fixed bracket fixedly arranged on the side of the column of the press. A rotating shaft is provided on the fixed bracket. An upper sleeve and a lower sleeve are respectively fixed at the upper and lower ends of the rotating shaft. A bearing sleeve is rotatably connected to the rotating shaft between the upper sleeve and the lower sleeve. The outer periphery of the bearing sleeve is connected to the fixed bracket. A rotating bracket is connected between the upper sleeve and the lower sleeve. A horizontal push-pull rod is connected to the rotating bracket. A push-pull mechanism is connected between the push-pull rod and the rotating bracket. The end of the push-pull rod is connected with a height-adjustable safety bolt assembly.

[0006] To facilitate the rotary installation of the safety bolt assembly, bearings are respectively installed between the upper and lower ends of the bearing sleeve and the rotating shaft. A circlip is clamped between the outer ring of the lower bearing and the bearing sleeve. A gland is provided between the upper end of the upper sleeve and the rotating shaft. The gland, the rotating shaft, and the ends of the upper sleeve are all fixed by a plurality of screws. The rotating bracket is fixed to the bearing sleeve.

[0007] To facilitate the positioning of the limit rotation bracket, long support plates and short support plates for supporting the rotation bracket are respectively provided on both sides of the column side fixing bracket. The long support plate and the short support plate are respectively used to support the rotation brackets in two perpendicular directions. Detection switches for detecting the position of the rotation bracket are respectively provided on the long support plate and the short support plate. Limit screws for fixing the docking position of the rotation bracket are also provided on the long support plate and the short support plate.

[0008] To achieve the length adjustment of the safety bolt assembly, the safety bolt assembly includes a bolt sleeve, a bolt rod is sleeved inside the bolt sleeve. The axial section of the bolt rod sleeved with the bolt sleeve is provided with an external thread and is connected with a threaded sleeve. The lower end of the threaded sleeve abuts against the end of the bolt sleeve. An external shoulder that abuts against the threaded sleeve is also provided on the outer periphery of the upper end of the bolt sleeve; a connecting sleeve sleeved on the outer periphery of the bolt sleeve is provided at the end of the push-pull rod. A lower retaining cover is provided on the lower side of the connecting sleeve. A support spring is provided inside the connecting sleeve on the upper side of the lower retaining cover. The upper end of the support spring abuts against the shoulder. The upper end of the connecting sleeve is fitted and sleeved on the outer periphery of the shoulder. A pressure ring is connected to the upper end of the connecting sleeve. The pressure ring and the end of the connecting sleeve are fixed circumferentially through a plurality of bolts. The pressure ring is radially clamped circumferentially with the outer periphery of the threaded sleeve.

[0009] To further facilitate the manual adjustment of the height of the safety rod assembly, a manual turntable is circumferentially connected to the upper end of the threaded sleeve.

[0010] To facilitate the horizontal pushing and pulling of the position of the safety bolt assembly, the pushing and pulling mechanism includes a connecting plate and a front pressing plate connected to the rotation bracket. Guide grooves along the length direction of the rod are respectively provided on the front side and the rear side of the push-pull rod corresponding to the front pressing plate and the connecting plate. Two wheel axles are respectively supported between the front pressing plate and the connecting plate corresponding to the guide grooves on each side. A roller that is in rolling fit with the guide groove is rotatably connected to the wheel axle. The push-pull rod is rollingly supported between the front pressing plate and the connecting plate.

[0011] To facilitate the fixing of the wheel axle, one end of the wheel axle is fixed to the connecting plate. The wheel axle and the roller are rotatably connected through a bearing. A spacer sleeve for top-fixing the bearing is provided between the front pressing plate and the wheel axle. The outer side of the spacer sleeve is fixed through a gland.

[0012] To facilitate the manual push rod, a handle for pulling and pushing the push-pull rod is provided on the outer periphery of the lower part of the bolt sleeve. Description of the Drawings

[0013] Figure 1 It is the front view of the rotary push-pull adjustable safety bolt of the present invention.

[0014] Figure 2 For Figure 1 is the top view.

[0015] Figure 3 For Figure 1 is the left view.

[0016] Figure 4 For Figure 3 Partial sectional view along B-B

[0017] Figure 5 It is a docking state diagram when the rotating push-pull adjustable safety bolt of the press of the present invention rotates to the idle time

[0018] Figure 6 It is a state diagram when the rotating push-pull adjustable safety bolt of the press of the present invention rotates, pushes and pulls to the state between the workbench and the slider

[0019] Wherein, 1 is a column; 2 is a fixed bracket; 3 is a rotating shaft; 301 is an upper sleeve; 302 is a lower sleeve; 4 is a bearing sleeve; 5 is a snap ring; 6 is a bearing; 7 is a gland; 8 is a rotating bracket; 9 is a connecting plate; 10 is a front pressing plate; 11 is a push-pull rod; 1101 is a connecting sleeve; 1102 is a lower retaining cover; 1103 is a guide groove; 12 is a manual turntable; 13 is a safety bolt assembly; 1301 is a bolt sleeve; 1302 is a support compression spring; 1303 is a shoulder; 1304 is a pressure ring; 1305 is a threaded sleeve; 1306 is a bolt rod; 14 is a long fixed bracket; 15 is a detection switch; 16 is a short fixed bracket; 17 is a detection switch; 18 is a handle; 19 is a wheel shaft; 20 is a bearing; 21 is a spacer sleeve; 22 is a gland; 23 is a roller Specific embodiments

[0020] The rotating push-pull adjustable safety bolt of the press of the present invention will be described in detail below with reference to the accompanying drawings

[0021] As Figures 1-4 shown, the rotating push-pull adjustable safety bolt of the press of the present invention includes a fixed bracket 2 fixedly arranged on the side of the column 1 of the press. A rotating shaft 3 is provided on the fixed bracket 2. An upper sleeve 301 and a lower sleeve 302 are respectively fixed at the upper end and the lower end of the rotating shaft 3. A bearing sleeve 4 is rotatably connected to the rotating shaft 3 between the upper sleeve 301 and the lower sleeve 302. The outer periphery of the bearing sleeve 4 is connected to the fixed bracket 2. A rotating bracket 8 is connected between the upper sleeve 301 and the lower sleeve 302. A horizontal push-pull rod 11 is connected to the rotating bracket 8. A push-pull mechanism is connected between the push-pull rod 11 and the rotating bracket 8. The end of the push-pull rod 11 is connected with a height-adjustable safety bolt assembly 13

[0022] For the convenience of the rotary installation of the safety bolt assembly 13, bearings 6 are respectively installed between the upper end and the lower end of the bearing sleeve 4 and the rotating shaft 3. A snap ring 5 is clamped between the outer ring of the lower bearing and the bearing sleeve 4. A gland 7 is provided between the upper end of the upper sleeve 301 and the rotating shaft 3. The gland 7 is fixed to the rotating shaft 3 and the end of the upper sleeve 301 by a plurality of screws. The rotating bracket 8 is fixed to the periphery of the bearing sleeve 4

[0023] As Figure 2As shown in the figure, to facilitate the positioning of the rotating bracket 8 after rotation, long support plates 14 and short support plates 16 for supporting the rotating bracket 8 are respectively provided on both sides of the fixed bracket 2 on the side of the column 1. The long support plate 14 and the short support plate 16 are respectively used to support the rotating bracket 8 in two perpendicular directions. Detection switches 15 and 17 for detecting the position of the rotating bracket 8 after rotation are respectively provided on the long support plate 14 and the short support plate 16. Limit screws for fixing the docking position of the rotating bracket 8 are also provided on the long support plate 14 and the short support plate 16.

[0024] As Figure 3 As shown in the figure, to achieve the length adjustment of the safety bolt assembly 13, the safety bolt assembly 13 includes a bolt sleeve 1301. A bolt rod 1306 is sleeved inside the bolt sleeve 1301. The axial section of the bolt rod 1306 sleeved with the bolt sleeve 1301 is provided with an external thread and is connected with a threaded sleeve 1305. The lower end of the threaded sleeve 1305 abuts against the end of the bolt sleeve 1301. An external shoulder 1303 that abuts against the threaded sleeve 1305 is further provided on the outer periphery of the upper end of the bolt sleeve 1301; a connecting sleeve 1101 sleeved on the outer periphery of the bolt sleeve 1301 is provided at the end of the push-pull rod 11. A lower retaining cover 1102 is provided on the lower side of the connecting sleeve 1101. A support spring 1302 is provided inside the connecting sleeve 1101 above the lower retaining cover 1102. The upper end of the support spring 1302 abuts against the shoulder 1303. The upper end of the connecting sleeve 1101 is fitted and sleeved on the outer periphery of the shoulder 1303. A pressure ring 1305 is connected to the upper end of the connecting sleeve 1303. The pressure ring 1305 and the end of the connecting sleeve 1303 are fixed circumferentially by a plurality of bolts. The pressure ring 1303 is fixedly clamped radially around the outer periphery of the threaded sleeve 1305; to further facilitate the manual rotation of the threaded sleeve 1305 to adjust the support height of the bolt rod 1306, a manual turntable 12 is circumferentially connected to the upper end of the threaded sleeve 1305.

[0025] As Figure 4 As shown in the figure, to facilitate the horizontal pushing and pulling of the position of the safety bolt assembly 13, the pushing and pulling mechanism includes a connecting plate 9 and a front pressing plate 10 connected to the rotating bracket 8. Guide grooves 1103 along the length direction of the rod are respectively provided on the front side and the rear side of the push-pull rod 11 corresponding to the front pressing plate 10 and the connecting plate 9. Two wheel axles 19 are respectively supported between the front pressing plate 10 and the connecting plate 9 corresponding to the guide grooves 1103 on each side. A roller 23 that is in rolling fit with the guide groove 1103 is rotatably connected to the axle wheel 19. The push-pull rod 11 is rollingly supported between the front pressing plate 10 and the connecting plate 9; to facilitate the fixing of the wheel axle 19, one end of the wheel axle 19 is fixed to the connecting plate 9. The wheel axle 19 and the roller 23 are rotatably connected through a bearing 20. A spacer sleeve 21 for fixing the bearing 20 is provided between the front pressing plate 10 and the wheel axle 19. The outer side of the spacer sleeve 21 is fixed by a gland 22; to facilitate the manual pushing and pulling, a handle 18 for pulling the push-pull rod 11 is provided on the outer periphery of the lower part of the bolt sleeve 1301.

[0026] As Figure 5 and Figure 6As shown in the figure, for the rotating push-pull adjustable safety bolt of the press of the present invention, through the rotating shaft 3 connected to the fixed bracket 2 and the safety bolt assembly 13 connected to the rotating bracket 8, the safety bolt assembly 13 can be rotationally adjusted within the lateral radius range of the column 1. When the press is working normally, it is the idle state of the safety bolt. The safety bolt assembly rotates out from between the slider and the workbench around the rotating shaft to the outside of the column away from the workbench, and the push-pull rod is pushed to the storage state. At this time, the rotating bracket abuts against the short support bracket and contacts and abuts against the detection switch on the short support bracket, and then the position of the rotating bracket is fastened and limited by screws; when in use, the rotating bracket 8 rotates to support and abut against the long support bracket, and after abutting against the detection switch on the long support bracket, it is fastened and limited by the screws on the bracket to prevent the rotating bracket from swinging. Then, the manual pull handle 18 can be pulled to extend the push-pull rod to the support area between the slider and the workbench; then, the support height of the bolt rod is adjusted by the manual turntable to make the safety bolt assembly in the supporting working state. Through rotation, abutting and locking, horizontal push-pull and height adjustment, the usage requirements of adjusting different rotation angles, support positions and support heights are achieved.

Claims

1. A rotary push-pull adjustable safety bolt for a press, characterized in that, A fixed bracket is laterally fixed to the column of a press. A rotating shaft is provided on the fixed bracket. An upper sleeve and a lower sleeve are respectively fixed to the upper and lower ends of the rotating shaft. A bearing sleeve is rotatably connected to the rotating shaft between the upper sleeve and the lower sleeve. The outer circumference of the bearing sleeve is connected to the fixed bracket. The upper sleeve and the lower sleeve are connected to a rotating bracket. A horizontal push-pull rod is connected to the rotating bracket. A push-pull mechanism is connected between the push-pull rod and the rotating bracket. The end of the push-pull rod is connected to a safety bolt assembly with adjustable height.

2. The rotary push-pull adjustable safety bolt for a press according to claim 1, characterized in that, Bearings are respectively installed between the upper and lower ends of the bearing sleeve and the rotating shaft. A circlip is clamped between the outer ring of the lower bearing and the bearing sleeve. A gland is provided between the upper end of the upper sleeve and the rotating shaft. The gland is fixed to the rotating shaft and the end of the upper sleeve by a number of screws. The rotating bracket is fixed to the bearing sleeve.

3. The rotary push-pull adjustable safety bolt of the press according to claim 1, characterized in that, Long support plates and short support plates for facilitating the support of the rotating bracket are respectively provided on both sides of the column lateral fixed bracket. The long support plate and the short support plate are respectively used to support the rotating brackets in two mutually perpendicular directions. Detection switches for detecting the position of the rotating bracket are respectively provided on the long support plate and the short support plate. Limit screws for fixing the docking position of the rotating bracket are also provided on the long support plate and the short support plate.

4. The rotary push-pull adjustable safety bolt for a press according to claim 1, characterized in that, The safety bolt assembly includes a bolt sleeve. A bolt rod is sleeved inside the bolt sleeve. The axial section of the bolt rod sleeved with the bolt sleeve is provided with an external thread and is connected with a threaded sleeve. The lower end of the threaded sleeve abuts against the end of the bolt sleeve. An external shoulder for abutting against the threaded sleeve is also provided on the outer circumference of the upper end of the bolt sleeve. A connecting sleeve sleeved on the outer circumference of the bolt sleeve is provided at the end of the push-pull rod. A lower retaining cover is provided on the lower side of the connecting sleeve. A support spring is provided inside the connecting sleeve on the upper side of the lower retaining cover. The upper end of the support spring abuts against the shoulder. The upper end of the connecting sleeve is fitted and sleeved on the outer circumference of the shoulder. The upper end of the connecting sleeve is connected with a pressure ring. The pressure ring and the end of the connecting sleeve are fixed circumferentially by a number of bolts. The pressure ring is circumferentially and radially clamped with the outer circumference of the threaded sleeve.

5. The rotary push-pull adjustable safety bolt for a press according to claim 4, characterized in that, A manual turntable is circumferentially connected to the upper end of the threaded sleeve.

6. The rotary push-pull adjustable safety bolt of the press according to claim 4, characterized in that, The push-pull mechanism includes a connecting plate and a front pressing plate connected to the rotating bracket. Guide grooves along the length direction of the rod are respectively provided on the front side and the rear side of the push-pull rod corresponding to the front pressing plate and the connecting plate. Two wheel axles are respectively supported between the front pressing plate and the connecting plate corresponding to the guide grooves on each side. A roller rollingly matched with the guide groove is rotatably connected to the axle wheel. The push-pull rod is rollingly supported between the front pressing plate and the connecting plate.

7. The rotary push-pull adjustable safety bolt for a press according to claim 1, wherein One end of the wheel axle is fixed to the connecting plate. The wheel axle and the roller are rotatably connected through a bearing. A spacer sleeve for fixing the bearing is provided between the front pressing plate and the wheel axle. The outer side of the spacer sleeve is fixed by a gland.

8. The rotary push-pull adjustable safety bolt for a press according to claim 7, characterized in that, A handle for pulling the push-pull rod is provided on the outer circumference of the lower part of the bolt sleeve.

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