Safety protection universal device for press equipment

Abstract

The utility model discloses a safety protection universal device for press equipment, which is simple in structure and convenient to operate. Comprising a protective cover body and a guide column mechanism, the guide column mechanism comprises two guide column fixing supports and a guide column vertically arranged between the two guide column fixing supports, the two ends of the protective cover body are arranged on the guide column in a matched mode, the protective cover body is used for covering a working part of press equipment, and a pressure head self-locking mechanism is arranged on the protective cover body. The pressure head self-locking mechanism is used for being hung on the guide column fixing support for positioning.

Description

Technical Field

[0001] This utility model relates to the field of mechanical press-fitting safety protection technology, and in particular to a general safety protection device for press equipment. Background Technology

[0002] The machinery industry is a fundamental and strategic industry in the manufacturing sector, providing technical equipment for the development of the national economy and people's livelihood. It is of great significance to supporting the country's manufacturing capabilities and comprehensive national strength. Existing press equipment usually lacks safety protection devices or the safety protection devices have major defects. There is a need to invent a universal safety protection device for press equipment. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a universal safety protection device for press equipment, which has a simple structure and is easy to operate.

[0004] The purpose of this utility model is achieved as follows:

[0005] A universal safety protection device for a press machine includes a protective cover and two guide column mechanisms. The two guide column mechanisms are located on both sides of the press machine. Each guide column mechanism includes two guide column fixed supports and a guide column erected between the two guide column fixed supports. The protective cover is U-shaped. Both ends of the protective cover are connected to a protective cover movable connecting plate through a protective cover connecting plate. The protective cover movable connecting plate is slidably fitted on the guide column. Handles are provided on both sides of the protective cover. The handles are used to drive the protective cover to rise and fall. When the protective cover is at the upper limit position, the protective cover covers the working part of the press machine. When the protective cover is at the lower limit position, the working part of the press machine is exposed.

[0006] The pressure head self-locking mechanism includes a pressure head, which has a connecting arm and a locking arm. The connecting arm and the locking arm are connected in an L-shape. The locking arm is provided with a locking protrusion, and the top of the guide column fixing support located above is provided with a locking plane corresponding to the locking protrusion.

[0007] One end of the connecting arm adjacent to the locking arm is hinged to the movable connecting plate / protective cover body of the protective cover by a fixing screw. The other end of the connecting arm is provided with an oblong through groove. The movable connecting plate / protective cover body of the protective cover is provided with a fixing screw three corresponding to the oblong through groove. The oblong through groove is fitted on the fixing screw three. A spring limiting screw is fitted along the vertical thread on the upper part of the connecting arm. The spring limiting screw extends into the oblong through groove and abuts against the fixing screw three. A spring is fitted on the spring limiting screw. The spring is accommodated in the oblong through groove. The lower end of the spring acts on the fixing screw three, and the upper end of the spring acts on the upper end of the oblong through groove.

[0008] When the protective cover is in the upper limit position, the locking protrusion on the pressure head is positioned on the locking plane under the elastic force of the spring; when the spring is compressed, the locking protrusion on the pressure head can disengage from the locking plane.

[0009] Preferably, the guide column fixing support is fixed to the side wall of the press equipment by fixing screw two.

[0010] Preferably, the press equipment is equipped with a sensor, which is used to detect and position whether the protective cover is at the upper limit position.

[0011] Preferably, the press equipment is equipped with an infrared laser positioning device, which is used to position the workpiece on the press equipment's worktable.

[0012] Preferably, the screw end of the spring limiting screw is provided with a small head, which is a smooth rod. The spring is sleeved on the small head, and the end of the small head abuts against the fixing screw.

[0013] Due to the adoption of the above technical solution, this utility model has the following beneficial effects:

[0014] 1. During the pressing process of the press equipment, the protective cover provides a fully enclosed safety protection for the operator, keeping the operator away from all the hazards generated during the pressing process, thereby ensuring that no personal injury accidents occur.

[0015] 2. Due to the adoption of the pressure head sensor mechanism, the press equipment control box can only open the press head working switch after receiving the locking information of the pressure head mechanism. Then, the pressing work is carried out under the fully enclosed protection of the protective cover, thereby avoiding the safety hazards caused by other unrelated personnel operating the press equipment controller switch.

[0016] 3. Because the press equipment is equipped with an infrared laser positioning device, the workpiece on the worktable can be quickly and accurately positioned before each pressing, without the need for repeated pre-positioning of the workpiece by visual inspection, which greatly improves the operator's work efficiency. Attached Figure Description

[0017] Figure 1 This is a front view of the protective cover of the present invention under the protective condition.

[0018] Figure 2 This is an isometric view of the protective cover of the present invention under the protective condition.

[0019] Figure 3 Left view of the protective cover of the present invention in its protective state under assembly;

[0020] Figure 4This is a front view of the assembly of the protective cover of the present invention without protection being implemented;

[0021] Figure 5 is a schematic diagram of the protective cover of the present invention;

[0022] Figure 6 is a schematic diagram of the pressure head self-locking mechanism of the present invention;

[0023] Figure 7 is a schematic diagram of the second self-locking mechanism of the pressure head of the present invention;

[0024] Figure 8 This is a schematic diagram of the spring-limiting screw of the present invention;

[0025] Figure 9 This is a schematic diagram of the guiding mechanism of the present invention;

[0026] Figure 10 This is a schematic diagram of the pressure head sensor mechanism of the present invention;

[0027] Figure 11 This is a schematic diagram of the infrared laser lamp positioning device of the present invention.

[0028] Figure Labels

[0029] In the attached diagram, 1-guide column fixed support, 2-protective cover connecting plate, 3-protective cover body, 4-pressure head self-locking mechanism one, 5-infrared laser lamp positioning device, 6-pressure head self-locking mechanism two, 7-handle, 8-protective cover moving connecting plate, 9-guide column, 10-pressure head sensor mechanism, 11-fixing screw one, 12-fixing screw three, 13-fixing screw two, 14-fixing nut, 15-pressure head one, 16-spring limit screw, 17-spring, 18-pressure head two, 19-transmission line, 20-sensor, 21-pressing machine equipment, 22-pressure head of the press equipment, 23-control box. Detailed Implementation

[0030] The embodiments of the invention will now be described in further detail with reference to the accompanying drawings.

[0031] In this embodiment, the terms "upper," "lower," "left," "right," "front," "rear," "upper end," and "lower end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0032] A universal safety protection device for a press machine includes a protective cover 3 and two guide column mechanisms. The two guide column mechanisms are located on both sides of the press machine. Each guide column mechanism includes two guide column fixed supports 1 and a guide column 9 erected between the two guide column fixed supports 1. The protective cover 3 is U-shaped. Both ends of the protective cover 3 are connected to a protective cover movable connecting plate 8 via a protective cover connecting plate 2. The protective cover movable connecting plate 8 is slidably fitted onto the guide column 9. Handles 7 are provided on both sides of the protective cover 3. The handles 7 are used to drive the protective cover 3 to rise and fall. When the protective cover 3 is at its upper limit position, the protective cover 3 covers the working part of the press machine. When the protective cover 3 is at its lower limit position, the working part of the press machine is exposed. The self-locking mechanism of the press head includes a press head, which has a connecting arm and a locking arm. The fixed arm is connected in an L-shape. The locking arm is provided with a locking protrusion. The top of the guide column fixed support 1 located above is provided with a locking plane corresponding to the locking protrusion. One end of the connecting arm adjacent to the locking arm is hinged to the protective cover moving connecting plate 8 / protective cover body 3 by a fixing screw 11. The other end of the connecting arm is provided with an oblong through groove, which is parallel to the locking arm. The protective cover moving connecting plate 8 / protective cover body 3 is provided with a fixing screw 12 corresponding to the oblong through groove. The oblong through groove is fitted on the fixing screw 12. A spring limiting screw 16 is fitted along the vertical thread on the upper part of the connecting arm. The spring limiting screw 16 extends into the oblong through groove and abuts against the fixing screw 12. A spring 17 is fitted on the spring limiting screw 16. The spring 17 is accommodated in the oblong through groove. The lower end of the spring 17 acts on the fixing screw 12, and the upper end of the spring 17 acts on the upper end of the oblong through groove.

[0033] When the protective cover 3 is in the upper limit position, the locking protrusion on the pressure head is positioned on the locking plane under the elastic force of the spring 17; when the spring 17 is compressed, the locking protrusion on the pressure head can disengage from the locking plane. The pressure head can be rotated by the spring limit screw 16, which compresses the spring 17.

[0034] The guide column fixing support 1 is fixed to the side wall of the press equipment by fixing screw 13. The press equipment is equipped with a sensor 20, which is used to detect and position whether the protective cover 3 is at its upper limit position. The press equipment is equipped with an infrared laser positioning device 5, which is used to position the workpiece on the press equipment's worktable. The spring limit screw has a small end (i.e., a diameter smaller than the screw end) at its screw end. The small end is a smooth rod, and the spring is fitted onto the small end, with the end of the small end abutting against fixing screw 12.

[0035] Specifically:

[0036] See Figure 1This utility model includes a protective cover, a pressure head self-locking mechanism one, a pressure head self-locking mechanism two, a guide column mechanism, a pressure head sensor mechanism, and an infrared laser lamp positioning device.

[0037] As shown in Figures 5, 6, 7, and 9, the protective cover is equipped with two handles, four protective cover connecting plates, four protective cover movable connecting plates, six fixing screws (one type), two fixing screws (three type), and two fixing nuts. The six fixing screws (one type) and two fixing screws (three type) connect and secure the protective cover, the four protective cover connecting plates, and the four protective cover movable connecting plates. In addition to connecting and securing the protective cover, the two fixing screws (three type) also have their tail ends inserted into the bottom area of ​​the oblong grooves of the pressure heads (one and two types) to limit the spring movement. The four protective cover movable connecting plates are provided with guide holes, which are clearance-fitted with the two guide posts in the guide mechanism. Through the guiding action of the guide holes, the protective cover slides freely up and down on the guide posts. The protective cover is connected and secured to the two handles by fixing nuts. The operator holds the two handles with both hands and lifts them upwards, causing the protective cover to slide upwards along the guide posts to the upper limit of the guide post fixed support.

[0038] As shown in Figures 6, 7, and 8, the two fixing screws 1 in the self-locking mechanism of the pressure head pass through the through holes on the front side of the pressure heads 1 and 2, and are respectively connected and fastened to the two protective cover movable connecting plates 8 in the protective cover body. The two fixing screws 1 and the through holes on the pressure heads 1 and 2 are configured for clearance fit, allowing the pressure heads 1 and 2 to rotate freely around the fixing screws 1. The rear side of the pressure heads 1 and 2 are respectively provided with oblong through grooves, and the two fixing screws 3 that connect and fasten the protective cover body, the protective cover connecting plate, and the protective cover movable connecting plate have their tail ends inserted into the bottom of the oblong through grooves of the pressure heads 1 and 2. The upper surface of the rear end of the pressure heads 1 and 2 is provided with screw holes, two The end of the spring limiting screw is set to a small head, and a spring is installed in the small head position. Through the corresponding screw holes on the upper surface of the rear end of the first and second pressure heads, the spring limiting screw is screwed down to the bottom of the oblong groove and fixed by the third fixing screw. The end of the spring is limited by the third fixing screw at the bottom of the oblong groove. When both hands simultaneously pry the spring limiting screw 16, the first and second pressure heads rotate around the first fixing screw. The spring is compressed and stretched in the oblong groove. After the protective cover slides upward through the guide post to the upper limit position of the upper guide post fixing support, the elastic force generated by the compression of the spring in the oblong groove locks the first and second pressure heads on the upper surface of the upper guide post fixing support.

[0039] like Figure 9 As shown in Figure 5, the lower plane of the guide column fixing support in the guide column mechanism is provided with guide column installation blind holes. Two guide columns are pre-installed into the guide holes of the protective cover, and then installed in conjunction with the guide column fixing support installation blind holes. Finally, four guide column fixing supports are connected and fastened to the outer wall side of the press equipment by four fixing screws, so that the protective cover can slide up and down in the working stroke area of ​​the press head of the press equipment.

[0040] like Figure 3 , 10 As shown, a pressure head sensor mechanism is installed between the guide column fixed support and the press equipment control box. The sensor is connected to the guide column fixed support and the control box through a transmission line. After the protective cover slides upward to the upper limit position of the upper guide column fixed support, the pressure head is locked on the upper plane of the guide column fixed support. The sensor immediately transmits the locking information to the press equipment control box through the transmission line. The control box opens the press equipment pressure head working switch according to the locking information and begins to carry out the pressing work on the workpiece.

[0041] like Figure 11 and summary appendix Figure 1 As shown, an infrared laser positioning device is installed at the upper part of the press head of the press equipment. With the infrared laser positioning device, the operator can quickly and accurately position the workpiece on the worktable of the press equipment without having to repeatedly pre-position the workpiece by visual inspection, which greatly improves the operator's work efficiency.

[0042] like Figure 3 , 4 As shown in Figure 5, the length, width, and height dimensions l1, l2, and l3 of the protective cover and the length dimension l4 of the guide column of the present invention are respectively matched with the length, width, and height dimensions L1, L2, and L3 of various press equipment. According to the size requirements of different press equipment, the protective cover and guide column of the corresponding size can be matched, so that the universal safety protection device of the present invention can be installed on various press equipment of the enterprise.

[0043] As described above, each component of this invention must first meet the design requirements. Then, after each component is assembled into a universal safety protection device for press equipment, it is installed on various press equipment. The components work together precisely and constrain each other to achieve safety protection for the operator through the following process.

[0044] After the infrared laser positioning device 5 accurately positions the workpiece on the press machine's worktable, the operator holds the handle 7 with both hands and lifts it upwards, causing the protective cover 3 to slide upwards through the guide column 9 to the upper limit position of the upper guide column fixed support 1. The pressure head self-locking mechanism 1 4 and the pressure head self-locking mechanism 2 6 immediately lock the pressure head 1 15 and the pressure head 2 18 onto the upper plane (locking plane) of the upper guide column fixed support. The pressure head sensor mechanism 10 transmits the locking information to the press machine control box, which then issues a command to open the press head working switch of the press machine to press the workpiece. After pressing is completed, the pressure head returns to the safe position, and the press machine control box issues a command to turn off the pressure head working power, stopping the pressure head from running. The operator then uses both hands to simultaneously pry down the two spring limit screws 16, immediately opening the pressure head self-locking mechanism 1 4 and the pressure head self-locking mechanism 2 6. Under its own gravity, the protective cover slides down to the limit position of the lower guide column fixed support through the handle control, and finally the workpiece is removed. During the pressing process, the protective cover provides full-enclosed protection for the operator, keeping them away from all potential hazards. During the loading and unloading of workpieces on the worktable, the self-locking mechanism of the press head remains unlocked, preventing the press machine control box from receiving locking information and thus preventing unauthorized personnel from operating the control box to open the press head switch. This ensures that no operator injury accidents occur.

[0045] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A universal safety protection device for press equipment, characterized in that: The device includes a protective cover and two guide column mechanisms. The two guide column mechanisms are located on both sides of the press equipment. Each guide column mechanism includes two guide column fixed supports and a guide column erected between the two guide column fixed supports. The protective cover is U-shaped. Both ends of the protective cover are connected to a protective cover movable connecting plate through a protective cover connecting plate. The protective cover movable connecting plate is slidably fitted on the guide column. Handles are provided on both sides of the protective cover. The handles are used to drive the protective cover to rise and fall. When the protective cover is at the upper limit position, the protective cover covers the working part of the press equipment. When the protective cover is at the lower limit position, the working part of the press equipment is exposed. The pressure head self-locking mechanism includes a pressure head, which has a connecting arm and a locking arm. The connecting arm and the locking arm are connected in an L-shape. The locking arm is provided with a locking protrusion, and the top of the guide column fixing support located above is provided with a locking plane corresponding to the locking protrusion. One end of the connecting arm adjacent to the locking arm is hinged to the movable connecting plate / protective cover body of the protective cover by a fixing screw. The other end of the connecting arm is provided with an oblong through groove. The movable connecting plate / protective cover body of the protective cover is provided with a fixing screw three corresponding to the oblong through groove. The oblong through groove is fitted on the fixing screw three. A spring limiting screw is fitted along the vertical thread on the upper part of the connecting arm. The spring limiting screw extends into the oblong through groove and abuts against the fixing screw three. A spring is fitted on the spring limiting screw. The spring is accommodated in the oblong through groove. The lower end of the spring acts on the fixing screw three, and the upper end of the spring acts on the upper end of the oblong through groove. When the protective cover is in the upper limit position, the locking protrusion on the pressure head is positioned on the locking plane under the elastic force of the spring; when the spring is compressed, the locking protrusion on the pressure head can disengage from the locking plane.

2. The universal safety protection device for press equipment according to claim 1, characterized in that: The guide column fixing support is fixed to the side wall of the press equipment by fixing screw two.

3. A universal safety protection device for press equipment according to claim 1, characterized in that: The press equipment is equipped with sensors that are used to detect and position whether the protective cover is at its upper limit position.

4. A universal safety protection device for press equipment according to claim 1, characterized in that: The press equipment is equipped with an infrared laser positioning device, which is used to position the workpiece on the press equipment's worktable.

5. A universal safety protection device for press equipment according to claim 1, characterized in that: The spring-loaded limit screw has a small end at the screw end, which is a smooth rod. The spring is fitted onto the small end, and the end of the small end abuts against the fixing screw.

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