A press mold ejector rod placement position detection device

Abstract

The utility model belongs to the technical field of press equipment, specifically relates to a press die ejector rod placing position detection device, it includes jacking mechanism, transport mechanism and detection unit. Transport mechanism is located above jacking mechanism, and transport mechanism includes bearing platform, and a plurality of through holes are opened in array on bearing platform, detection ejector rod is arranged in the through hole, the die is placed on bearing platform, detection hole is opened in the bottom of die corresponding detection ejector rod, the bottom of detection ejector rod is in contact with the top of jacking mechanism, and the top of detection ejector rod is used for matching and extending into detection hole;Detection unit is set up in the top of bearing platform, and is used for sending alarm signal when the lower surface of die and the surface of bearing platform separate. The utility model is used to solve the problem of low efficiency of press ejector rod and die position detection. The cooperation of detection ejector rod and detection hole on die realizes the detection of whether the die position placing and ejector rod arrangement are accurate, and sends alarm signal through detection unit when the gap appears between die and the surface of bearing platform.

Description

Technical Field

[0001] This utility model belongs to the technical field of press equipment, specifically relating to a press mold ejector pin placement detection device. Background Technology

[0002] A press is a general-purpose device that uses pressure to cause plastic deformation or fracture of metal or other materials. It is widely used in stamping, forging, forming and other processes.

[0003] Currently, presses are typically used in conjunction with transport trolleys. The mold is placed on the transport trolley, which then moves the mold into the press. The transport trolley can also be used to remove the mold from the press for mold changing. To facilitate mold changing, some molds have several ejector pin holes, and ejector pins are arranged in an array on the transport trolley accordingly. Different molds require different ejector pins on the transport trolley to accommodate the ejector pin holes. For example, some molds require ejector pins to be inserted into the first, third, and fifth ejector pin holes. Before placing the mold on the transport trolley, it is necessary to ensure that the ejector pins are positioned accurately.

[0004] However, due to the large number of mold models and the differences in ejector pin holes for different molds, the required ejector pin positions also differ. To ensure the accuracy of ejector pin placement and mold placement, it is currently necessary to manually check whether the ejector pins on the conveyor trolley are correctly placed before placing the molds. This results in a significant reduction in overall production efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, a device for detecting the placement position of ejector pins in press molds is provided, which solves the problem of low efficiency in detecting the position of ejector pins and molds in presses.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A device for detecting the placement position of the ejector pin of a press mold, comprising:

[0007] Lifting mechanism;

[0008] A transport mechanism is located above the lifting mechanism. The transport mechanism includes a carrying platform for placing a mold. The bottom of the mold has a number of detection holes. The carrying platform has a number of through holes arranged in an array. A detection rod corresponding to the detection hole passes through the through hole. The bottom of the detection rod contacts the top of the lifting mechanism. The top of the detection rod is used to match and extend into the detection hole.

[0009] The detection unit is located on the top of the support platform and is used to issue an alarm signal when the lower surface of the mold separates from the surface of the support platform.

[0010] Compared with existing technologies, the above technical solutions have the following beneficial effects:

[0011] The accuracy of mold positioning and ejector pin arrangement is detected by the cooperation between the ejector pin and the detection hole on the mold. If the mold is positioned accurately on the support platform, the ejector pin should correspond to the detection hole on the mold. The lifting mechanism can then extend the lifted part of the ejector pin into the detection hole of the mold, and the bottom of the mold remains in contact with the support platform. If the mold is not positioned accurately on the support platform, the ejector pin cannot accurately extend into the detection hole of the mold. In this case, the ejector pin will lift the mold off the surface of the support platform, causing a gap between the mold and the surface of the support platform, which will then trigger an alarm signal through the detection unit.

[0012] Based on the above technical solution, the embodiments of this application can be further improved as follows:

[0013] In one embodiment, the detection unit is embedded in the support platform, and the detection end of the detection unit is not lower than the top surface of the support platform.

[0014] The detection end of the detection unit is set to face the mold on the top surface of the support platform. After the mold is placed on the support platform, the detection unit will not be triggered. When the mold moves away from the support platform by a certain distance, the detection end of the detection unit can immediately detect the gap and issue an alarm signal.

[0015] In one embodiment, at least one set of detection units is symmetrically arranged along the center of the support platform.

[0016] Multiple detection units are arranged around the center, so that any gaps caused by the lifting of any corner or side of the mold can be detected.

[0017] In one embodiment, the top of the detection rod is provided with a T-shaped head, and the through hole on the bearing platform is a T-shaped hole that matches the T-shaped head. The top surface of the T-shaped head is not higher than the surface of the bearing platform.

[0018] By setting T-holes and T-heads, the ejector pin can be suspended on the support platform. The top surface of the T-head is not higher than the surface of the support platform, ensuring that the mold does not interfere with the ejector pin during placement.

[0019] In one embodiment, the lifting mechanism includes:

[0020] Base;

[0021] A top plate is located above the base and spaced apart from the base, and a limit block is provided on one side of the top plate;

[0022] At least two lifting cylinders are provided, which are disposed between the base and the top plate, and their two ends are respectively connected to the top plate and the base;

[0023] A first limit sensor is disposed on the base, and the sensing end of the first limit sensor corresponds to the limit block, which is used to limit the upward position of the top plate.

[0024] By cooperating with the first limit sensor and the limit block on the top plate, the height at which the top plate is lifted is controlled within the required range, and the gap generated when the mold is lifted can be detected by the detection unit.

[0025] In one embodiment, a second limiting sensor is further included, which is disposed below the first limiting sensor and is used to limit the downward position of the top plate when in contact with the limiting block.

[0026] By setting a second limit sensor, the extreme position of the top plate's downward movement is controlled.

[0027] In one embodiment, a skirt plate is provided around the outer perimeter of the top plate, and a series of intersecting reinforcing ribs are provided at the bottom of the top plate between the skirt plates.

[0028] In one embodiment, the base is provided with a plurality of guide rods, and a guide plate is sleeved on the guide rod. The guide plate and the reinforcing rib plate form a bottom surface connection, and the top of the guide rod extends through the guide plate and into the gap between the reinforcing rib plates.

[0029] In one embodiment, one end of the lifting cylinder abuts against the guide plate, and the other end is connected to the base by fasteners.

[0030] In one embodiment, a plurality of pads are also provided at the bottom of the base, and the pads are detachably connected to the bottom of the base. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0033] Figure 2 for Figure 1 A frontal view of the structure.

[0034] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point AA.

[0035] Figure 4 This is a partial exploded structural diagram of the present invention.

[0036] Figure 5 for Figure 4 A structural diagram from another perspective.

[0037] Figure label:

[0038] 1. Lifting mechanism; 2. Transport mechanism; 3. Detection unit; 4. Mold; 5. Detection hole; 6. T-head; 7. Pad block;

[0039] 101. Base; 102. Top plate; 103. Lifting cylinder; 104. Limit block; 105. First limit sensor; 106. Second limit sensor; 107. Bracket; 108. Skirt plate; 109. Reinforcing rib plate; 110. Guide rod; 111. Guide plate;

[0040] 201. Supporting platform; 202. Through hole; 203. Inspection rod. Detailed Implementation

[0041] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0042] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0043] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0045] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] like Figure 1-5 As shown, the present invention provides a press mold ejector pin placement position detection device, which includes: an ejector mechanism 1, a transport mechanism 2 and a detection unit 3, wherein the detection unit 3 can be implemented by detection equipment such as limit switches.

[0047] The transport mechanism 2 is located above the lifting mechanism 1. The transport mechanism 2 includes a support platform 201, on which a mold 4 is placed. The bottom of the mold 4 is provided with a plurality of detection holes 5. The support platform 201 is provided with a plurality of through holes 202 arranged in an array. When the mold 4 is positioned accurately, the detection holes 5 on the mold 4 should be aligned with the through holes 202 on the support platform 201. At the same time, a detection push rod 203 corresponding to the detection hole 5 is inserted through the through hole 202. Different molds 4 need to have detection push rods 203 placed in different through holes 202 to align with the detection holes 5 on different molds 4. When aligned, the push rod can extend into the detection hole 5 on the mold 4. The bottom of the detection push rod 203 contacts the top of the lifting mechanism 1, and the top of the detection push rod 203 is used to match and extend into the detection hole 5.

[0048] The detection unit 3 is located on the top of the support platform 201 and is used to issue an alarm signal when the lower surface of the mold 4 separates from the surface of the support platform 201. When the detection unit 3 issues an alarm signal, the lifting mechanism 1 can be controlled by an external controller to stop its operation or retract and reset, so as to avoid the lifting mechanism 1 from damaging the mold 4.

[0049] The accuracy of the mold 4's position and the arrangement of the ejector pins is detected by the cooperation between the ejector pin 203 and the detection hole 5 on the mold 4. If the mold 4 is positioned accurately on the support platform 201, the ejector pin 203 should correspond to the detection hole 5 on the mold 4. The ejector pin can be extended into the detection hole 5 of the mold 4 by the lifting mechanism 1, and the bottom of the mold 4 remains in contact with the support platform 201. If the mold 4 is not positioned accurately on the support platform 201, the ejector pin 203 cannot be accurately extended into the detection hole 5 of the mold 4. The ejector pin 203 will lift the mold 4 away from the surface of the support platform 201, causing a gap between the mold 4 and the surface of the support platform 201, and then the detection unit 3 will issue an alarm signal.

[0050] Specifically, the detection unit 3 is embedded in the support platform 201, and the detection end of the detection unit 3 is not lower than the top surface of the support platform 201.

[0051] The detection end of the detection unit 3 is set to face the mold 4 on the top surface of the support platform 201, so that after the mold 4 is placed on the support platform 201, the detection end is compressed and controlled within a suitable range, and the detection unit 3 is not triggered. When the mold 4 leaves the support platform 201 at a certain distance, the detection end of the detection unit 3 can immediately detect the gap and issue an alarm signal.

[0052] To ensure the accuracy and comprehensiveness of the detection, at least one set of detection units 3 is symmetrically arranged around the center of the bearing platform 201. Each set includes two detection units 3, which are preferably arranged diagonally around the center. Alternatively, the two sets of detection units 3 are preferably arranged at the four corners of the mold 4. Multiple sets of detection units 3 are arranged around the center so that any corner or side of the mold 4 that is lifted and has a gap can be detected.

[0053] To ensure that the top rod does not fall out of the through hole 202, a T-shaped head 6 is provided on the top of the detection top rod 203. The through hole 202 on the bearing platform 201 is a T-shaped hole that matches the T-shaped head 6. The top surface of the T-shaped head 6 is not higher than the surface of the bearing platform 201.

[0054] By setting T-holes and T-heads 6, the detection ejector rod 203 can be suspended in the T-holes of the support platform 201 without falling off. The T-heads 6 and the detection ejector rod 203 can be integrally formed, so that the detection ejector rod 203 can only be taken out from above the T-holes. The top surface of the T-heads 6 is not higher than the surface of the support platform 201, ensuring that the mold 4 does not interfere with the ejector rod during placement.

[0055] In this embodiment, specifically, the lifting mechanism 1 includes: a base 101, a top plate 102, and a lifting cylinder 103.

[0056] The lifting mechanism 1 is located below the conveying mechanism, specifically in the pit. The transport mechanism 2 is located in the track at the top of the pit and moves back and forth. When the lifting mechanism 1 lifts, the top plate 102 contacts the detection rod 203 in the transport mechanism 2 and drives the detection rod 203 to rise a certain distance. When the lifting mechanism 1 descends, the top plate 102 retracts into the pit, so that the transport mechanism 2 can move horizontally without interfering with the top plate 102.

[0057] The base 101 is set in the pit, and the top plate 102 is located above the base 101 and spaced apart from the base 101. A limit block 104 is provided on one side of the top plate 102. Two lifting cylinders 103 are set between the base 101 and the top plate 102. The two ends of the lifting cylinders 103 are connected to the top plate 102 and the base 101 respectively, and the lifting cylinders 103 control the up and down movement of the top plate 102.

[0058] The first limit sensor 105 is disposed on the base 101, and the sensing end of the first limit sensor 105 corresponds to the limit block 104, and is used to limit the upward position of the top plate 102.

[0059] Specifically, the first limit sensor 105 is fixedly connected to the base 101 via a bracket 107. The first limit sensor 105 is fixed on the bracket 107, and the sensing end of the first limit sensor 105 faces the limiting block 104 on the top plate 102. In addition, the first limit sensor 105 can also be fixed in other positions that do not contact the top plate 102 via the bracket 107 to ensure that the first sensor remains fixed. Through the cooperation of the first limit sensor 105 and the limiting block 104 on the top plate 102, the height of the top plate 102 being lifted is controlled within the required range. If the mold 4 is lifted, the resulting gap can be detected by the detection unit 3.

[0060] It also includes a second limit sensor 106, which is disposed below the first limit sensor 105. The second limit sensor 106 is used to limit the downward position of the top plate 102 when it comes into contact with the limit block 104. By setting the second limit sensor 106, the extreme position of the downward movement of the top plate 102 is controlled, so that the limit block 104 moves back and forth between the first limit sensor 105 and the second limit sensor 106 to control the vertical displacement range of the top plate 102.

[0061] To improve the structural strength of the top plate 102, a skirt plate 108 is provided around the outer perimeter of the top plate 102. At the bottom of the top plate 102, between the skirt plates 108, there are intersecting reinforcing ribs 109. The reinforcing ribs 109 are arranged longitudinally, and multiple reinforcing ribs 109 are fixed to the bottom of the top plate 102 in an intersecting manner. The two ends of the reinforcing ribs 109 are connected to the outer skirt plate 108 to form a whole.

[0062] To ensure that the lifting cylinder 103 is not subjected to force, a plurality of guide rods 110 are provided on the base 101. Guide plates 111 are sleeved on the guide rods 110. The guide plates 111 are connected to the bottom surface of the reinforcing ribs 109. The top of the guide rods 110 passes through the guide plates 111 and extends into the gaps between the reinforcing ribs 109. The direction of the top plate 102 moving up and down is controlled by the cooperation of the guide rods 110 and the guide plates 111. The guide plates 111 are connected and fixed to the bottom edge of the reinforcing ribs 109. The guide rods 110 extend into the gaps between the intersecting reinforcing ribs 109, which allows for a range of movement of the guide plates 111 on the guide rods 110.

[0063] Specifically, one end of the lifting cylinder 103 abuts against the guide plate 111, and the other end is connected to the base 101 by fasteners. The lifting cylinder 103 can be implemented by a hydraulic cylinder. The bottom of the lifting cylinder 103 is connected and fixed to the guide plate 111, and the piston rod end of the lifting cylinder 103 is fixedly connected to the base plate by fasteners such as ball washers.

[0064] To ensure that the height of the entire lifting mechanism is adjustable, a number of pads 7 are also provided at the bottom of the base 101. The pads 7 are detachably connected to the bottom of the base 101. By replacing the pads 7 of different heights, the entire lifting mechanism can be raised or lowered.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for detecting the placement position of ejector pins in a press mold, characterized in that, include: Lifting mechanism; A transport mechanism is located above the lifting mechanism. The transport mechanism includes a carrying platform with a plurality of through holes arranged in an array on the carrying platform. A detection rod is inserted through the through holes. The carrying platform is used to place a mold. A detection hole is opened at the bottom of the mold corresponding to the detection rod. The bottom of the detection rod contacts the top of the lifting mechanism, and the top of the detection rod is used to fit into the detection hole. The detection unit is located on the top of the support platform and is used to issue an alarm signal when the lower surface of the mold separates from the surface of the support platform.

2. The press mold ejector pin placement position detection device according to claim 1, characterized in that, The detection unit is embedded in the support platform, and the detection end of the detection unit is not lower than the top surface of the support platform.

3. The press mold ejector pin placement position detection device according to claim 2, characterized in that, At least one set of detection units is symmetrically arranged along the center of the support platform.

4. The press mold ejector pin placement position detection device according to claim 1, characterized in that, The top of the detection rod is provided with a T-shaped head, and the through hole on the bearing platform is a T-shaped hole that matches the T-shaped head. The top surface of the T-shaped head is not higher than the surface of the bearing platform.

5. The press mold ejector pin placement position detection device according to claim 1, characterized in that, The lifting mechanism includes: Base; A top plate is located above the base and spaced apart from the base, and a limit block is provided on one side of the top plate; At least two lifting cylinders are provided, which are disposed between the base and the top plate, and their two ends are respectively connected to the top plate and the base; A first limit sensor is disposed on the base, and the sensing end of the first limit sensor corresponds to the limit block, which is used to limit the upward position of the top plate.

6. The press mold ejector pin placement position detection device according to claim 5, characterized in that, It also includes a second limit sensor, which is disposed below the first limit sensor and is used to limit the downward position of the top plate when it comes into contact with the limit block.

7. The press mold ejector pin placement position detection device according to claim 5, characterized in that, The top plate is surrounded by skirting plates, and the bottom of the top plate is provided with interlaced reinforcing ribs between the skirting plates.

8. The press mold ejector pin placement position detection device according to claim 7, characterized in that, The base is provided with several guide rods, and guide plates are sleeved on the guide rods. The guide plates are connected to the bottom surfaces of the reinforcing ribs, and the top of the guide rods extends through the guide plates and into the gaps between the reinforcing ribs.

9. The press mold ejector pin placement position detection device according to claim 8, characterized in that, One end of the lifting cylinder abuts against the guide plate, and the other end is connected to the base by fasteners.

10. The press mold ejector pin placement position detection device according to claim 5, characterized in that, The base is also provided with several pads at the bottom, and the pads are detachably connected to the bottom of the base.

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