Tool for centering male die cavity and female die cavity of cold header

Abstract

The utility model discloses a tool for centering a male die cavity and a female die cavity of a cold header, which comprises a movable die connecting column, a mounting seat is in threaded connection with the movable die connecting column, a threaded shaft is fixedly connected to the bottom of the mounting seat, an extension sleeve is arranged at the bottom of the mounting seat, the extension sleeve is in sliding connection with the bottom of the threaded shaft, and the movable die connecting column is in threaded connection with the threaded shaft. And the top of the extension sleeve is rotationally connected with a threaded sleeve, the inner wall of the threaded sleeve is in threaded connection with the threaded shaft, a fixed mold base is installed at the bottom end of the extension sleeve, and movable grooves which are evenly distributed are formed in the inner wall of the fixed mold base. According to the utility model, the calibration rod can be pushed out of the movable groove to be in contact with the inner wall of the fixed die through the cooperative use of the mobile power supply electromagnet and the magnetic base, and the calibration rod can be automatically stabilized through the arrangement of the sensor and the processor, so that a user can judge whether to center according to the protruding length of the calibration rod; meanwhile, dislocation data can be judged through the protruding length, measurement is accurate, and meanwhile the steps required by personnel to operate are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cold heading machines, in particular to a tool for centering convex and concave die cavities of cold heading machines. Background Art

[0002] Cold heading machine is a kind of equipment used to mass produce some fasteners such as nuts and bolts. The working principle of cold heading machine is to use the protruding module to push the material into the concave mold, and then squeeze the material into the required parts. When the mold is used for a long time, it will deform, so the centering tool needs to be adjusted.

[0003] After searching, it was found that patent application number CN202022039788.0 discloses a tool for centering the male and female cavities of a cold heading machine, including a fixed tube, a male mold is fixedly installed inside the fixed tube, a fixed ring is fixedly installed on the outer surface of the fixed tube, a first telescopic rod is fixedly installed on one end of the fixed tube, a second telescopic rod is movably installed inside the first telescopic rod, a clamping block is fixedly installed on one end of the first telescopic rod, a partition is fixedly installed on one end of the second telescopic rod, a baffle is fixedly installed on the other end of the second telescopic rod, a first clamping tube is fixedly installed on one side of the baffle, a second clamping tube is rotatably installed on the outer surface of the first clamping tube, and a swivel is fixedly installed on one end of the second clamping tube. In the utility model, the second clamping tube and the ejector rod are arranged, which is not only convenient for the staff to use but also can detect the wear of the mold, and can also make the scale of the parts produced by the cold heading machine more accurate.

[0004] This structure uses a spring and a push rod to fit with the inner wall of the fixed mold, and then determines whether it is centered and the specific offset data if it is offset. However, this structure is cumbersome to operate and has low accuracy. Mistakes are prone to occur during manual operation, resulting in data changes. At the same time, the structure is inconvenient to adjust, and it takes a long time to detect different positions of the fixed mold. Therefore, professionals in this field have provided a tool for centering the male and female cavities of cold heading machines to solve the above-mentioned problems. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a tool for centering the male and female cavities of a cold heading machine. When calibrating the inside of a fixed die, multiple sets of calibration rods can stably stop and calibrate any height inside the fixed die, which can ensure accurate measurement and reduce the steps required by personnel.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A tool for centering the male and female mold cavities of a cold heading machine comprises a movable mold connecting column, a mounting seat is threadedly connected to the movable mold connecting column, a threaded shaft is fixedly connected to the bottom of the mounting seat, an extension sleeve is arranged at the bottom of the mounting seat, the extension sleeve is slidably connected to the bottom of the threaded shaft, a threaded sleeve is rotatably connected to the top of the extension sleeve, the inner wall of the threaded sleeve is threadedly connected to the threaded shaft, a fixed mold seat is installed at the bottom end of the extension sleeve, the inner wall of the fixed mold seat is provided with evenly distributed movable grooves, the movable grooves penetrate and extend to the outside of the fixed mold seat, a magnetic seat is installed on the inner wall of the fixed mold seat, and the movable grooves extend to the outside of the fixed mold seat. A mounting plate is slidably connected to the inner wall of the movable groove, a spring is fixedly connected to the mounting plate, the other end of the spring is fixedly connected to the inner wall of the movable groove, a mobile power supply electromagnet is fixedly mounted on the mounting plate, the mobile power supply electromagnet is magnetically connected to the magnetic seat, a calibration rod is fixedly connected to the mounting plate, the calibration rod passes through the movable groove and extends to the outside of the fixed mold seat, a sensor is installed on the end of the calibration rod, a processor and a signal transmission module are installed inside the fixed mold seat, and the sensor, the signal transmission module, the mobile power supply electromagnet and the sensor are all connected to the processor signal.

[0008] As a further description of the above technical solution: a warning light is installed on the top of the fixed mold base, and a comparison module is installed inside the fixed mold base. The comparison module and the warning light are both connected to the processor signal.

[0009] As a further description of the above technical solution: the outer ring of the threaded sleeve is fixedly connected with a cushion, and the cushion is provided with evenly distributed anti-slip grooves.

[0010] As a further description of the above technical solution: a rectangular sliding rod is fixedly connected to the inner bottom wall of the extension sleeve, and the top end of the rectangular sliding rod penetrates and extends to the inside of the threaded shaft.

[0011] As a further description of the above technical solution: the calibration rod is provided with evenly distributed scale markings.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] In the utility model, the movable groove of the calibration rod can be pushed out to contact the inner wall of the fixed mold by the coordinated use of the mobile power electromagnet and the magnetic seat, and the automatic stabilization of the calibration rod can be realized by the setting of the sensor and the processor. The user can judge whether it is centered according to the protruding length of the calibration rod, and can judge the misalignment data by the protruding length. The measurement is accurate and the steps required for the personnel to operate are reduced. The height of the fixed mold seat can be arbitrarily adjusted by the coordinated use of the threaded sleeve and the threaded shaft, so that when calibrating the inside of the fixed mold, multiple groups of calibration rods can stably stop and calibrate at any height in the fixed mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0016] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0017] Figure 4 It is a schematic diagram of the principle of the utility model.

[0018] Description of the numbers in the figure:

[0019] 1. Moving mold connecting column; 2. Mounting seat; 3. Threaded shaft; 4. Extension sleeve; 5. Threaded sleeve; 6. Fixed mold seat; 7. Movable groove; 8. Magnetic seat; 9. Mounting plate; 10. Spring; 11. Mobile power electromagnet; 12. Calibration rod; 13. Sensor; 14. Processor; 15. Signal transmission module; 16. Prompt light; 17. Comparison module; 18. Soft cushion; 19. Rectangular slide bar; 20. Scale markings. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 1-4 In the utility model, the tool for centering the convex and concave mold cavities of the cold heading machine includes a movable mold connecting column 1, a mounting seat 2 is threadedly connected to the movable mold connecting column 1, a threaded shaft 3 is fixedly connected to the bottom of the mounting seat 2, an extension sleeve 4 is arranged at the bottom of the mounting seat 2, the extension sleeve 4 is slidably connected to the bottom of the threaded shaft 3, a threaded sleeve 5 is rotatably connected to the top of the extension sleeve 4, the inner wall of the threaded sleeve 5 is threadedly connected to the threaded shaft 3, a fixed mold seat 6 is installed at the bottom end of the extension sleeve 4, and the inner wall of the fixed mold seat 6 is provided with evenly distributed movable grooves 7, the movable grooves 7 penetrate and extend to the outside of the fixed mold seat 6, a magnetic seat 8 is installed on the inner wall of the fixed mold seat 6, and the inner wall of the movable groove 7 is provided with a magnetic seat 8. A mounting plate 9 is slidably connected, a spring 10 is fixedly connected to the mounting plate 9, the other end of the spring 10 is fixedly connected to the inner wall of the movable groove 7, a mobile power supply electromagnet 11 is fixedly installed on the mounting plate 9, the mobile power supply electromagnet 11 is magnetically connected to the magnetic seat 8, a calibration rod 12 is fixedly connected to the mounting plate 9, the calibration rod 12 passes through the movable groove 7 and extends to the outside of the fixed mold seat 6, a sensor 13 is installed at the end of the calibration rod 12, a processor 14 and a signal transmission module 15 are installed inside the fixed mold seat 6, the sensor 13, the signal transmission module 15, the mobile power supply electromagnet 11 and the sensor 13 are all connected to the processor 14 signal.

[0022] A warning light 16 is installed on the top of the fixed mold base 6 , and a comparison module 17 is installed inside the fixed mold base 6 . Both the comparison module 17 and the warning light 16 are connected to the processor 14 by signal.

[0023] The user connects the movable mold connecting column 1 to the center position of the top cold heading movable mold. At this time, the extension sleeve 4 and the fixed mold seat 6 are both at the top of the fixed mold. Then the user rotates the threaded sleeve 5, and the threaded sleeve 5 threadedly connected to the threaded shaft 3 begins to move downward, thereby driving the extension sleeve 4 at its bottom to move downward, and the fixed mold seat 6 begins to move toward the inside of the fixed mold. When the fixed mold seat 6 enters the inside of the fixed mold, the user stops rotating the threaded sleeve 5, and then the user notifies the control of multiple groups of mobile power electromagnets 11 to energize. The electromagnet has the same magnetic property as the magnetic seat 8, so that the mobile power electromagnet 11 pushes the mounting plate 9 to move toward the side away from the magnetic seat 8, and the calibration rod 12 moves toward the inner wall of the fixed mold, and the spring 10 is subjected to force to produce an opposite force. When one When the sensor 13 at the end of the side calibration rod 12 contacts the inner wall of the fixed mold, the sensor 13 transmits a signal to the processor 14, and the processor 14 stops the current increase of the mobile power electromagnet 11, so that the force of the spring 10 and the magnetic field are offset, and the calibration rod 12 maintains contact with the inner wall of the fixed mold. Then the user can directly observe the protruding length of each group of calibration rods 12 to determine whether the fixed mold and the movable mold are centered. If there is an abnormality, the user can reversely rotate the threaded sleeve 5 to make the fixed mold seat 6 rise and observe the differences between each group of calibration rods 12 to determine the precise data of the misalignment. In actual use, the comparison module 17 can also be used through the processor 14 to compare the data, and then determine whether it is centered and control the prompt light 16 to flash the corresponding prompt light.

[0024] In the utility model, the movable slot 7 can be pushed out of the calibration rod 12 to contact the inner wall of the fixed mold by the coordinated use of the mobile power electromagnet 11 and the magnetic base 8, and the automatic stabilization of the calibration rod 12 can be achieved by the setting of the sensor 13 and the processor 14. The user can judge whether it is centered according to the protruding length of the calibration rod 12, and can judge the misalignment data by the protruding length. The measurement is accurate and the steps required by the personnel are reduced. The height of the fixed mold base 6 can be arbitrarily adjusted by the coordinated use of the threaded sleeve 5 and the threaded shaft 3, so that when calibrating the inside of the fixed mold, multiple groups of calibration rods 12 can be stably stopped to calibrate any height inside the fixed mold.

[0025] See also Figure 1 and 2 , wherein: the outer ring of the threaded sleeve 5 is fixedly connected with a soft pad 18, and the soft pad 18 is provided with evenly distributed anti-slip patterns.

[0026] In the utility model, when the user needs to rotate the threaded sleeve 5, the soft pad 18 can provide a fulcrum for the user, and the anti-skid pattern can prevent the user from slipping.

[0027] See also Figure 2 , wherein: a rectangular slide rod 19 is fixedly connected to the inner bottom wall of the extension sleeve 4 , and the top end of the rectangular slide rod 19 penetrates and extends to the inside of the threaded shaft 3 .

[0028] In the present invention, the rectangular slide bar 19 can limit the extension sleeve 4. The rectangular slide bar 19 enables the extension sleeve 4 to always be at the bottom of the threaded shaft 3 to keep moving in the vertical direction.

[0029] See also Figure 1 , wherein: the calibration rod 12 is provided with evenly distributed scale markings 20 .

[0030] In the present invention, when the user observes the protruding length of the calibration rod 12, the user can make a judgment based on the scale markings 20. The scale markings 20 can improve the measurement accuracy to facilitate subsequent adjustments.

[0031] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A tool for centering the male and female cavities of a cold heading machine, comprising a movable die connecting column (1), characterized in that: The movable mold connecting column (1) is threadedly connected to a mounting seat (2), the bottom of the mounting seat (2) is fixedly connected to a threaded shaft (3), the bottom of the mounting seat (2) is provided with an extension sleeve (4), the extension sleeve (4) is slidably connected to the bottom of the threaded shaft (3), the top of the extension sleeve (4) is rotatably connected to a threaded sleeve (5), the inner wall of the threaded sleeve (5) is threadedly connected to the threaded shaft (3), the bottom end of the extension sleeve (4) is provided with a fixed mold seat (6), and the inner wall of the fixed mold seat (6) is provided with evenly distributed A movable groove (7), the movable groove (7) penetrates and extends to the outside of the fixed mold base (6), a magnetic base (8) is installed on the inner wall of the fixed mold base (6), a mounting plate (9) is slidably connected to the inner wall of the movable groove (7), a spring (10) is fixedly connected to the mounting plate (9), the other end of the spring (10) is fixedly connected to the inner wall of the movable groove (7), a mobile power supply electromagnet (11) is fixedly installed on the mounting plate (9), and the mobile power supply electromagnet (11) is magnetically connected to the magnetic base (8); A calibration rod (12) is fixedly connected to the mounting plate (9), the calibration rod (12) passes through the movable groove (7) and extends to the outside of the fixed mold base (6), a sensor (13) is installed at the end of the calibration rod (12), a processor (14) and a signal transmission module (15) are installed inside the fixed mold base (6), and the sensor (13), the signal transmission module (15), the mobile power supply electromagnet (11) and the sensor (13) are all connected to the processor (14) by signal.

2. The tool for centering the male and female cavities of a cold heading machine according to claim 1, characterized in that: A warning light (16) is installed on the top of the fixed mold base (6), and a comparison module (17) is installed inside the fixed mold base (6). The comparison module (17) and the warning light (16) are both connected to the processor (14) by signal.

3. The tool for centering the male and female cavities of a cold heading machine according to claim 1, characterized in that: The outer ring of the threaded sleeve (5) is fixedly connected with a soft pad (18), and the soft pad (18) is provided with evenly distributed anti-slip patterns.

4. The tool for centering the male and female cavities of a cold heading machine according to claim 1, characterized in that: A rectangular sliding rod (19) is fixedly connected to the inner bottom wall of the extension sleeve (4), and the top end of the rectangular sliding rod (19) penetrates and extends to the inside of the threaded shaft (3).

5. The tool for centering the male and female cavities of a cold heading machine according to claim 1, characterized in that: The calibration rod (12) is provided with evenly distributed scale markings (20).

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